JPH087545A - Disk reproducing device - Google Patents

Abstract

PURPOSE:To make possible selecting an object disk from plural sheets of disks with a simple operating procedure by displaying successively memo input information together with disk numbers on a display part. CONSTITUTION:When a memo scanner 21 is pressurized by a user, a main control part 153 displays the name of a function and then displays a disk number nearest to the number of a disk which is caught at present and the memo input information on a display part 28 with the display-movement of a left scrolling. That is, the main control part 153 performs successively displays on the display part 28 via a display driver 154 by invoking successively data relating to memo input information and disk numbers from the character data storage area and the disk number registering area of a memory part 155.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc reproducing method for taking out one disc from a storage portion in which a plurality of discs are stored and reproducing an information signal such as a tone signal recorded on the taken-out disc. Regarding the device.

[0002]

2. Description of the Related Art Generally, one optical disk is taken out from a disk storage unit in which a large number of disk-shaped recording media, for example, read-only optical disks are stored, and information signals such as tone signals recorded on the taken-out optical disks. A disc reproducing apparatus for reproducing a plurality of optical discs includes a disc storage unit that stores a large number of optical discs, and one optical disc selectively selected from the disc storage unit to reproduce an information signal recorded on the one optical disc. And a reproduction unit for performing.

A reproducing unit which constitutes this disc reproducing apparatus is mounted with one optical disc selected from the disc accommodating unit, and a disc rotating operation mechanism for rotating the optical disc, and is rotated by the disc rotating operation mechanism. An optical pickup device is provided which is movable in the radial direction of the optical disc and reproduces an information signal such as a tone signal recorded on the optical disc.

Further, the reproducing unit is a disc carrying mechanism for feeding one optical disc selected from a large number of optical discs accommodated in the disc accommodating unit to a disc table on which the one optical disc is mounted. And a clamp mechanism that clamps the optical disc, which is transported by the disc transport mechanism, on the disc table so as to rotate integrally with the disc table.

The selection of the optical disc to be reproduced by the reproducing unit is performed by moving the disc accommodating unit accommodating a large number of optical discs to move an arbitrary optical disc to a position corresponding to the disc conveying mechanism. It is performed by the operation of taking out from the disk storage unit by the mechanism. Alternatively, the operation is performed by moving the disk carrying mechanism to a position corresponding to an arbitrary optical disk housed in the disk housing unit, and taking out the disk housing unit from the disk housing unit. Then, the optical disc positioned at the position corresponding to the disc transport mechanism is transported and operated by the disc transport mechanism onto the disc rotation operation mechanism of the reproducing unit, and mounted on the disc table constituting the disc rotation operation mechanism. The recorded information signal is reproduced by scanning with the optical pickup device while being rotated by the disk rotation operation mechanism.

By the way, in order to select one from a large number of optical discs accommodated in the disc accommodating unit, a serial number is conveniently attached to the disc holder for accommodating and retaining each optical disc. The serial number is defined as the number of the optical disk housed and held in each disk holder, that is, the disk number, and the optical disk housed and held in each disk holder is specified by designating this number. That is, in a disc reproducing apparatus equipped with a disc storage unit capable of storing a large number of optical discs, the disc storage units can be stored in these disc holding units by designating serial numbers attached to the respective disc holding units. The designated optical disc is designated, the designated optical disc is transported to the disc reproducing unit by the disc transport mechanism, and the disc reproducing unit reproduces the optical disc.

Then, for example, when an optical disk is reproduced by the disk reproducing unit, a number input key such as a ten-key on the operation panel is operated to input a desired disk number, and the input disk number corresponds to the input disk number. It is designed to play optical discs.

Character display information such as a title corresponding to each disc number is registered in a memory by using a character key or the like, and the disc number is input when the optical disc is reproduced. The character display information corresponding to is displayed to improve the operability of the disc reproducing apparatus.

[0009]

By the way, in such a disc reproducing apparatus, when an arbitrary optical disc is selected from a large number of optical discs, the disc is operated by a specific operation key or a rotary operation key for performing a toggle operation. Since the selection was made while moving up / down the number and checking the corresponding character display information, the user must repeat the same operation several times to select the target disc or song. did not become. Therefore, the operation for the user to select a desired optical disc or song from a large number of optical discs is complicated.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a disc reproducing apparatus that simplifies the operation when a user selects a desired optical disc or song from a large number of optical discs. .

[0011]

DISCLOSURE OF THE INVENTION A disc reproducing apparatus according to the present invention comprises a storing means capable of storing a plurality of discs,
Reproducing means for selectively selecting and reproducing a disc from the storing means, input means for inputting character information corresponding to each of the plurality of discs, and storage means for storing the character information inputted by the input means. And a control means for sequentially reading out the character information from the storage means in a predetermined order in response to an operation of the operation means, and a control means. The above problem is solved by having a display means for sequentially displaying the character information read by the above.

In this case, the disc reproducing apparatus further has a reproduction instructing means, and the control means causes the display means to operate when the reproduction supporting means is operated while the display means sequentially displays the character information. The disk corresponding to the character information currently being displayed is mounted on the reproducing means and reproduction is controlled.

Further, the above-mentioned predetermined order is an alphabetical order. The predetermined order is a disk number order. Further, the predetermined order is characterized in that it is an eye uo order.

The search for the character information is performed on all the character information stored in the storage means. Also,
The disc reproducing device further has a function of dividing the discs into groups, and the display section sequentially displays group character information regarding the group groups.

Further, the operating means gives an instruction to retrieve the character information on the track, the control means sequentially reads out the character information on the track in a predetermined order according to the operation of the operating means, and the display means controls the control. The character information regarding the track read from the means is sequentially displayed.

In this case, the predetermined order is an alphabetical order. The predetermined order is a disk number order. Further, the predetermined order is characterized in that it is an eye uo order.

[0017]

When the operating means gives an instruction to retrieve the character information corresponding to each of the plurality of discs, the control means sequentially reads the character information from the storage means in a predetermined order, and the display means sequentially reads the read character information. Since it is displayed, the operation is simplified when the user selects a desired optical disc or song from a large number of optical discs.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of a disc reproducing apparatus according to the present invention will be described below with reference to the drawings. In this embodiment, one optical disk is taken out from a disk housing unit in which a large number of optical disks on which information signals such as tone signals are recorded are stored, and optical disk reproduction is carried out for reproducing the information signals recorded on the taken-out optical disks. It is a device.

As shown in FIG. 1, this optical disk reproducing apparatus includes a disk housing unit 2 capable of housing 100 optical disks D in an outer casing 1 which constitutes a substantially rectangular apparatus body, and a disk housing unit 2. A disc reproducing unit 3 shown in FIG. 3 for reproducing one optical disc D selected from the disc storing unit 2 is built in.

As shown in FIG. 3, the disk storage unit 2 arranged in the outer casing 1 is rotatably supported by a support shaft 4 which is erected from the bottom surface 1a side of the outer casing 1. The rotary table 5 is provided. Since the rotary table 5 constituting the main body of the storage unit is supported by the support shaft 4 vertically erected on the bottom surface 1a of the outer casing 1, it is parallel to the bottom surface 1a of the outer casing 1, that is, the optical disc reproducing apparatus. Rotate horizontally on the installation surface of.

The rotary table 5 is shown in FIG.
As shown in FIG. 3, a large number of disc insertion grooves 6 are formed in the radial direction around the rotation center supported by the support shaft 4.
Are formed radially. In this embodiment, 100 disc insertion grooves 6 are formed in the circumferential direction of the rotary table 5. Also, rotary table 5
As shown in FIG. 3, a cylindrical disk support 7 having a cylindrical shape is coaxially attached to the lower surface side of the rotary table 5. Disc support grooves 8 are formed on the disc support 7 so as to correspond to the disc insertion grooves 6 formed on the rotary table 5 and to support the outer peripheral edges of the optical discs D inserted into the disc insertion grooves 6. ing. These disc support grooves 8 are radially formed in a corner portion of the disc support 7 facing the rotary table 5 on the outer peripheral edge side on the upper surface side. These disk support grooves 8 are formed as grooves having a curved surface corresponding to the outer peripheral edge of the optical disk D. Therefore, the optical disc D inserted into the disc insertion groove 6 substantially perpendicularly is prevented from falling out of the disc insertion groove 6 by the outer peripheral edge being supported by the disc support groove 6. That is, one disc insertion groove 6 and one disc support groove 8
A disc holding portion for accommodating and holding the optical discs D one by one is configured.

By the way, the disc insertion groove 6 formed in the rotary table 5 has an inner peripheral side end 6a located on the rotation center side of the rotary table 5 and an outer peripheral side end located on the outer peripheral edge side of the rotary table 5. The width of 6b is substantially the same as the thickness of the optical disc D inserted in the disc insertion groove 6. Further, the width of the midway portion 6c from the inner peripheral side end 6a to the outer peripheral side end 6b is formed so as to gradually widen from the inner peripheral side to the outer peripheral side of the rotary table 5.

By thus forming the disc insertion groove 6, the optical disc D inserted in the disc insertion groove 6 is formed.
The swing is restricted by the inner peripheral side end 6a and the outer peripheral side end 6b of the disc insertion groove 6, and is supported vertically by the rotary table 5. That is, the optical disk D is housed and held in the disk housing unit 2 with its main surface being substantially parallel to the support shaft 4 that supports the rotary table 5, which is the center of rotation of the rotary table 5. Further, in the optical disc D, only the non-signal recording area on the outer peripheral edge side where the information signal is not recorded is supported by the inner peripheral side end 6a and the outer peripheral side end 6b of the disc inserting groove 6, so that the disc inserting groove is formed. At the time of inserting / removing into / from 6 or rotating the rotary table 5, it is surely prevented from coming into contact with the side wall forming the disc insertion groove 6 of the signal recording area formed on the inner peripheral side where information signals are recorded. be able to. In particular, since the middle part 6c of the disc insertion groove 6 is formed so as to gradually widen from the inner peripheral side toward the outer peripheral side, when the optical disc D is inserted into or removed from the disc insertion groove 6, the signal recording area It is possible to reliably prevent contact with the side wall forming the disc insertion groove 6. At this time, the optical disc D has its upper end side and lower end side projected above and below the rotary table 5, respectively.

Further, on the outer peripheral surface of the rotary table 5 which constitutes the disk storage unit 2, as shown in FIG. 3, a gear portion 9 is engraved over the entire circumference. The rotary table 5 is rotated around the support shaft 4 by driving the storage unit rotary drive mechanism by engaging a drive force transmission gear constituting a storage unit rotary drive mechanism described later with the gear portion 9. Further, it is located on the outer peripheral surface of the rotary table 5 on the upper side where the gear portion 9 is engraved, and the engaging concave portion 10 corresponds to each disc insertion groove 6.
Is provided. A storage unit rotation restricting mechanism, which will be described later, is engaged with and disengaged from the engaging recess 10 to restrict the rotation of the rotary table 5.

The disk housing unit 2 housing and holding the optical disk D and the disk reproducing unit 3 for reproducing one optical disk D selected from the disk housing unit 2 are incorporated in the outer casing 1 as shown in FIG. As shown, a disc insertion / removal opening 11 for inserting / removing the optical disc D is provided in the disc storage unit 2. The disk insertion / removal opening 11 is located on the upper surface side of the outer casing 1, and is provided from the front surface side of the outer casing 1 to the rear surface direction. The disc insertion / removal opening 11 is formed in such a size that a part of a large number of disc insertion grooves 6 provided in the rotary table 5 is exposed to the outside. Specifically, it is formed in such a size that approximately 1/4 of 100 disc insertion grooves 6 are exposed to the outside. Then, by inserting / removing the optical disc D through the disc insertion / removal opening 11, the optical disc D inserted / held in the disc insertion groove 6 can be replaced. The disc insertion / removal opening 11 is covered with an openable / closable lid 12 made of transparent synthetic resin. Then, for example, when the optical disc D is reproduced or when it is not used, the lid 12 is closed to prevent the optical disc D from being accidentally accommodated in the disc accommodating unit 2 via the disc insertion / ejection port 11. It is possible to protect the optical disc D by preventing the dust from entering the outer casing 1.

Further, on the front side of the outer casing 1, there is provided an operation panel 13 in which operation switches and operation buttons for controlling the optical disk reproducing apparatus are arranged. Here, the main operation switches, buttons, and the like installed on the operation panel 13 will be described. As shown in the enlarged view of FIG. 2, the power switch 15 is arranged on the upper left side of the operation panel 13 and faces the operation panel 13. And a reproduction mode selection key 16 for selecting a reproduction operation mode for the optical disc D on the upper right side.
a, a pause key 16b, a stop key 16c, an unload key 16d, a preview key 16e, and a next key 1
An operation key group 16 of 6f is arranged. In addition, in the lower central part of the operation panel 13, a predetermined number of the 100 optical disks D accommodated in the disk accommodating unit 2 are determined according to the content of the recorded information or the frequency of use of a plurality of users. A disc groove designating key 17 is arranged for each unit. In this embodiment, the disc groove designation key 17 is the first disc groove designation key 1.
It consists of 10 keys from 7a to the tenth disc designation key 17j. A disc group entry key 19 is arranged above the first disc groove designation key 17a of the disc groove designation keys 17.
Further, on the left side of the group entry key 19, a switching designation key 20 for registering character information regarding a disc, a group or a track is arranged. On the left side of the switching designation key 20, a memo scan key 21 for sequentially displaying the information input by memo in a memo display area 30 of a display unit 28 described later is arranged.

In the reproducing apparatus of this embodiment,
A rotary operation key 22 is arranged on the lower right side of the operation panel 13 in the figure. On the left side of the rotary operation key 22, a memo input key 26, a file key 23 and an erase key 25 are arranged. The rotary operation key 22 has a data setting push button switch 24 fixed to the operation panel 13 at the center thereof. The rotary operation key 22 has, for example, 10 stop positions intermittently per one rotation, and the data is updated for each stop position. For example, when rotated to the right, the data is updated +, and when rotated to the left, −
It will be updated.

At the central portion of the operation panel 13, a display unit 28 composed of, for example, a liquid crystal display or an FL tube is installed. The display unit 28 includes a registered group display unit 29a for displaying a registered group number by lighting a number, and a disk group number display area 29b for displaying a group number of a selected or current disk. Alternatively, a memo display area 30 for displaying a memo such as a title relating to the current disc number, first and second disc areas for displaying the disc number of the optical disc D currently being reproduced or selected and the disc number of the optical disc D to be reproduced next. 2 disk number display area 3
1a and 31b, a track number display area 32 for displaying the track number of the disc being played, and a time display area 3
3 and a remaining track display portion 34 for displaying the remaining tracks of the disk including the track number of the disk being played.

Next, the main mechanism constituting this optical disk reproducing apparatus will be described with reference to FIGS. As shown in FIG. 3, this optical disk reproducing apparatus is a storage unit rotation drive mechanism for rotating a disk storage unit 2 storing a large number of optical disks D in a clockwise direction and a counterclockwise direction about a spindle 4. 41, a disc transport mechanism 42 that selectively ejects any one of the optical discs D stored in the disc storage unit 2 and transports the optical disc D so that the optical disc D can be mounted in the disc playback unit 3, and the rotational position of the disc storage unit 2. The disk storage unit rotational position detecting mechanism 44 for detecting is provided.

First, the storage unit rotation drive mechanism 41 will be described. The storage unit rotation drive mechanism 41 rotates the disc storage unit 2 to select, for example, a disc insertion groove selected by various keys arranged on the operation panel 13. The optical disc D housed and held in any one of the disc holders 6 and the disc supporting groove 8 is moved to a position where it can be taken out by the disc carrying mechanism 42, that is, a position corresponding to the disc carrying mechanism 42. . The storage unit rotation drive mechanism 41 constitutes a first drive section of the optical disc reproducing apparatus.

As shown in FIG. 3, the storage unit rotary drive mechanism 41 comprises a drive motor 45 arranged at a corner portion in the outer casing 1 and a reduction gear mechanism 46 composed of a plurality of gears. The drive gear 47 forming the reduction gear mechanism 46 meshes with the gear portion 9 formed on the outer peripheral surface of the rotary table 5, whereby the drive force of the drive motor 45 is transmitted to the rotary table 5. The rotational driving force of the drive motor 45 is equal to the output shaft 45 of the drive motor 45.
It is transmitted to the reduction mechanism 46 via a driving force transmission belt 48 wound between a pulley 45b attached to a and a pulley 46a constituting the reduction gear mechanism 46. Therefore, the rotational drive force of the drive motor 45 is reduced by the reduction gear mechanism 46 and finally transmitted to the gear portion 9 of the rotary table 5 via the drive gear 47 to rotate the rotary table 1. The drive motor 45 is capable of rotating in both forward and reverse directions, and supports the disc storage unit 2 including the rotary table 5 according to the position of the optical disc D selected by various keys arranged on the operation panel 13. It is rotated about the axis 4 in the clockwise direction or the counterclockwise direction.

Further, a disc transport mechanism 42 for selectively taking out one optical disc D from the disc storage unit 2 and transporting it so as to mount it on the disc reproducing unit 3.
Is arranged at a corner portion of the outer casing 1 opposite to a corner portion where the storage unit rotation drive mechanism 41 is arranged. The disc transport mechanism 42 supports two points on the outer peripheral edge of the optical disc D inserted and held in the disc insertion groove 6 of the disc storage unit 2, and makes the disc surface of the optical disc D parallel to the axial direction of the support shaft 4. Remove the disc from the disc storage unit 2 while maintaining it
A disk feeding mechanism 50 for feeding the disk to a mounting position is provided. Further, the disc transport mechanism 42 supports the outer peripheral edge side of the optical disc D facing the side supported by the disc feed mechanism 50, and guides the moving direction of the optical disc D fed by the disc feed mechanism. It is equipped with 49.

The disk feed guide member 49 constituting the disk transfer mechanism 42 is located inside the outer casing 1 from a position facing the upper outer peripheral edge of one optical disk D housed and held in the disk housing unit 2. The disc reproducing unit 3 arranged at the corner on the side where 42 is arranged
Is arranged so as to extend in a range extending over the disc mounting position. That is, this disc feed guide member 49
As shown in FIG. 3, the disk surface is made parallel to the axial direction of the support shaft 4 from a position facing the outer peripheral edge on the upper side of the support shaft 4 side of the optical disc D protruding upward from the disc storage unit 2. The optical disc D can be mounted by means of the optical disc D, and the optical disc D extends in a range extending to the disc mounting position of the disc reproducing unit 3 arranged so that the surface parallel to the axial direction of the support shaft 4 serves as the rotational operation surface of the optical disc D. It is located in.

Further, the disc feed guide member 49 is a feed guide portion 49a in which the surface facing the outer peripheral edge of the optical disc D is smoothly and smoothly curved. This feed guide portion 49a is specifically, the disc storage unit 2
The portion of the optical disc D, which is located on the side of the support shaft 4 facing the outer peripheral surface of the optical disc D, is a curved surface having a substantially arc shape that sharply rises. Is a curved surface that gradually increases. That is, the feed guide portion 49a has a shape along the shape of the first quadrant of an ellipse whose major axis is in the lateral direction when viewed geometrically. The disc feed guide member 49 is provided on both sides of the feed guide portion 49a.
Regulates the swing of the optical disc D guided by the
A feed guide regulation wall 49b is formed to prevent the disc feed guide member 49 from falling off.

By the way, the disc feed guide member 49
Are attached via a disc reproduction unit attachment substrate 51 to which the disc storage unit 2 is attached.
The disc reproducing unit mounting substrate 51 is formed of a thin metal plate, has its base end side supported by the support shaft 4, and is positioned on the side where the disc reproducing unit 3 is arranged so as to stand in the outer casing 1. It is fixedly placed. Then, the disc feed guide member 49 pivotally supports the shaft 52 erected on the disc reproducing unit mounting substrate 51 at the base end side.
It can be rotated about 2.

On the other hand, as shown in FIG. 6, the disc feed mechanism 50 constituting the disc transport mechanism 42 has a first arm 54 and a second arm 54 which are pivotally supported to be openable and closable via a single common pivot shaft 53. The arm 55 is provided. The first and second arms 54 and 55 are attached to the pivot 53,
The torsion coil spring 62 having one end portion 62a locked to a part of the first arm 54 and the other end portion 62b locked to a part of the second arm 55 faces the outer peripheral edge of the optical disc D to be transported. One of the two ends is urged to rotate in the directions of arrows P and Q in FIG. 6, which are directions close to each other. In addition, the arm rotation control pin 59 that is erected on one main surface of the turntable 60 that is rotationally operated by receiving the rotational driving force of the drive motor 61 communicates with the first and second arms 54 and 55. First and second cam grooves 57 and 58 are formed. The arm rotation control pin 59 that communicates with the first and second cam grooves 57 and 58 is planted at a position eccentric with respect to the support shaft 56 that is the center of rotation of the turntable 60 that pivotally supports the turntable 60. Has been done. The drive motor 61, which rotates the turntable 60 to rotate the first and second arms 54 and 55, constitutes a second drive unit of the apparatus together with the turntable 60.

The first arm 54 constituting the disc feeding mechanism 50 is formed of, for example, a synthetic resin molding, and as shown in FIG. A drive piece 63 having a fulcrum portion and a disc feed operation piece 64 having a substantially L shape extended from one side edge of the drive piece 63 are provided. The drive piece 63 has a first cam portion 57a and a second cam portion 5 whose surfaces facing each other from the pivotally supporting side to the pivot shaft 53 to the other end side have the same curvature.
The first cam groove 57 is formed as 7b. Also,
The disc feeding operation piece 64 is an optical disc D to be fed.
The one end of the drive piece 63 is extended so that one end of the roller 65 for supporting the drive piece 63 faces the lower outer peripheral edge of the optical disk D housed in the disk housing unit 2.

The first arm 54 is rotated counterclockwise in the direction of arrow P in FIG. 6 about the pivot 53, whereby the roller 65 provided at one end is housed in the disk housing unit 2. The optical disc D is brought into contact with the outer peripheral edge of the formed optical disc D and further rotated counterclockwise to lift the optical disc D obliquely upward in FIG. When the first arm 54 is further rotated in the counterclockwise direction from here, the outer peripheral edge of the side of the optical disc D facing the portion supported by the roller 65 is set as the feed guide portion 49a of the disc feed guide member 49. Contact. Then, by continuously rotating the first arm 54 in the counterclockwise direction, the optical disc D is guided by the feed guide portion 49a of the disc feed guide member 49 to be fed to the mounting position for the disc reproducing unit 3.

On the other hand, the second arm 55 is formed of, for example, a synthetic resin molded body, and is shown in FIG.
As shown in FIG. 2, a drive piece 66 having a pivotal support portion for the pivot shaft 53 at one end side, and a drive piece 66 extending substantially in the direction of the optical disc D housed in the disc storage unit 2 from the pivotal support portion side for the pivot shaft 53. An L-shaped disc detection piece 67 is provided. That is, the disc detection piece 67 is opposed to the disc feed operation piece 64 of the first arm 54 with the optical disc D stored in the disc storage unit 2 interposed therebetween. A roller 68 that comes into contact with the outer peripheral edge of the optical disc D is attached to one end of the disc detection piece 67 that faces the disc feed operation piece 64.

A second cam groove 58 is formed in the driving piece 66 from the side of the pivotal support to the pivot 53 to the side of the other end. In the second cam groove 58, a first portion is provided in a portion extending over one-third of the total length of the left end portion in FIG. A first cam portion 58a having the same curvature as the first cam groove 75 formed in the arm 54 is formed. The central portion, which is a midway portion from the first cam portion 58a toward the pivotal portion to the pivot 53, has the same curvature as the first cam portion 58a and is continuous with the first cam portion 58a. The second cam portion 58b is formed. Further, the second cam portion 5
A linear third cam portion 58c is formed in a portion extending from 8b to the pivot 53 on the side of the pivot. Then, on the side of the second cam groove 58 facing the second cam portion 58b, a relief portion 58d cut out in a concave bay shape is formed.

That is, the shape extending from the first cam portion 58a formed in the second cam groove 58 to the second cam portion 58b is the same as that of the cam groove 57 formed in the first arm 54. The second cam portions 57a and 57b have an arc shape with the same curvature. The curvatures of the first and second cam portions 57a and 57b of the first cam groove 57 and the first and second cam portions 58a and 58b of the second cam groove 58 are as shown in FIG. , Turntable 60 with arm rotation control pin 59 planted
Is formed in an arc shape with the center of rotation as the center of curvature.

By the way, in the second arm 55 constituting the disc feeding mechanism 50, the arm rotation control pin 59 inserted into the second cam groove 58 is rotationally driven, and an arrow Q in FIG.
When rotated in the clockwise direction, the roller 68 provided on the one end side comes into contact with a part of the outer peripheral edge of the optical disk D facing the part with which the roller 65 contacts. The rotation of the second arm 55 in the clockwise direction of the arrow Q in FIG. 6 is restricted by the contact of the roller 65 with the outer peripheral edge of the optical disc D.

Further, while the optical disc D to be transported is not held in the disc insertion groove 6 of the disc housing unit 2 located at the position corresponding to the disc transport mechanism 42, the second arm 55 moves the arrow Q in FIG. When it is rotated in the clockwise direction, the roller 68 provided at the one end does not come into contact with the optical disc D. Therefore, the second arm 55 further rotates clockwise in the direction of arrow Q in FIG. 6 without being restricted by the optical disc D. Then, the optical disc D presence / absence detection switch 70 provided on the rotation path of the second arm 55 causes the roller 68 to move.
When the switch operating portion 55a on the other end side opposite to the one end side on which the disk is attached is operated, for example, the detection switch 70 is turned on, the disc insertion unit 2 at the position corresponding to the disc transport mechanism 42 inserts the disc. It is electrically detected that there is no optical disk D to be transported in the groove 6.

The presence / absence detection switch 7 of the optical disc D
0 is attached via an attachment plate 70a arranged in the outer casing 1.

Next, the operation of taking out the optical disk D housed in the disk housing unit 2 by the disk transport mechanism 42 constructed as described above and detecting the presence or absence of the optical disk D in the disk insertion groove 6 of the disk housing unit 2 will be described. Operation will be described.

First, in the state before the disc is transported, the disc transport mechanism 42, as shown in FIGS. 3 and 6,
The first and second arms 54 and 55 are placed in an expanded state with the support shaft 53 as the center. That is, the rollers 65, 68 provided on one end sides of the first and second arms 54, 55, respectively.
Is separated from the outer peripheral edge of the optical disc D inserted into one disc insertion groove 6 of the disc storage unit. Here, when the turntable 60 on which the arm rotation control pin 59 is planted is driven to rotate about the support shaft 56 in the clockwise direction of the arrow A in FIG. 6, in the initial stage,
As shown in FIG. 7, the arm rotation control pin 59 is provided on the first cam portion 57 a and the second arm 55 which are the upper surface side portion of the first cam groove 57 provided on the first arm 54. The second cam groove 58 rotates from the upper surface side portion of the first cam portion 58a along the upper surface side portion of the second cam portion 58b. With the rotation of the arm rotation control pin 59 in the direction of arrow A in FIG. 6, the first and second arms 54 and 55 move in the rotation direction of the arm rotation control pin 59 about the common pivot shaft 53. Rotate integrally in the same clockwise direction. Further, the arm rotation control pin 59 rotates clockwise in the direction of arrow A in FIG. 6, whereby the roller 68 provided at one end of the second arm 55 is stored in the disc storage unit 2. It approaches the outer peripheral edge of the optical disc D. Then, the roller 68 comes into contact with the outer peripheral edge of the optical disc D as shown in FIG. 7, whereby the rotation of the second arm 55 in the clockwise direction is stopped. At this time, the second arm 5
The switch operating portion 55a on the other end side of the optical disc 5 is the optical disc D
The switch 70 is placed at a position sufficiently distant from the presence / absence detection switch 70. That is, the presence of the optical disc D to be transported in the disc storage unit 2 is detected by the roller 68 provided at one end of the second arm 55.

Next, the turntable 60 is further moved by an arrow A in FIG.
When rotated in the clockwise direction, the arm rotation control pin 59 causes the first cam portion on the upper surface side of the first cam groove 57 provided in the first arm 54 to move, as shown in FIG. 57a
7, the first arm 54 is rotated about the pivot 53 in the clockwise direction of the counter arrow P direction in FIG. On the other hand, in the second arm 55, the roller 68 contacts the outer peripheral edge of the optical disc D, and the arm rotation control pin 59 moves to the second edge.
Since the optical disc D moves away from the cam portion 58b of the second cam portion 58b so as to rotate in the escape portion 58d facing the second cam portion 58b, the rotation is restricted by the optical disc D and the optical disc D is stopped.
That is, only the first arm 54 rotates about the pivot 53 in the counterclockwise direction of the arrow P in FIG.

When the optical disc D is not inserted into the disc insertion groove 6 of the disc housing unit 2 where the first and second arms 54 and 55 face each other, as shown in FIG. There is nothing that regulates the rotation of 55. Therefore, the second arm 55 includes the torsion coil spring 6
The urging force of 2 is applied to rotate the roller 68 on one end side around the pivot 53 in the clockwise direction of the arrow Q direction in FIG. And
As for the second arm 55, until the arm rotation control pin 59 comes into contact with the second cam portion 58b of the second cam groove 58, as shown in FIG.
Rotate clockwise in the direction of the middle arrow Q. Along with the rotation of the second arm 55, the switch operating portion 55a provided on the other end side of the second arm 55 rotates toward the optical disc D presence / absence detection switch 70 side, and the detection switch 70
Is operated to turn on the detection switch 70.

Next, when the turntable 60 further rotates in the direction of arrow A in FIG. 8 from the state shown in FIG. 8, the arm rotation control pin 59 moves the first arm 54 to the first position as shown in FIG.
To the end of the cam groove 57 on the side of the pivot 53. Then, by further rotating the turntable 60 in the direction of arrow A in FIG. 9, the arm rotation control pin 59 rotates along the second cam portion 57b side of the first cam groove 57. From this state, turntable 6
When 0 further rotates in the direction of arrow A in FIG. 9, the arm rotation control pin 59 causes the second cam portion 5 of the first cam groove 57 to move.
The first arm 54 is rotated so as to press 7b.
Is rotated counterclockwise in the direction of arrow P in FIG. Then, the roller 65 provided at one end of the first arm 54 approaches the outer peripheral edge of the optical disc D stored in the disc storage unit 2.

At this time, in the second arm 55, the roller 68 provided on one end side contacts the optical disc D, and the arm rotation control pin 59 rotates and moves in the escape portion 58d of the second cam groove 58. Therefore, it is maintained in a stopped state.

Next, the turntable 60 is further indicated by an arrow A in FIG.
If the arm rotation control pin 59 is rotated clockwise as shown in FIG.
While rotating while pressing the second cam portion 57b of the cam groove 57 of the first arm 54, the roller 65 provided at one end of the first arm 54 is brought into contact with the outer peripheral edge of the optical disc D. As the rotation of the turntable 60 in the direction of the arrow A in FIG. 10 progresses, the first arm 54 has a roller 65 at one end.
The optical disc D supported by is pushed up toward the feed guide portion 49a of the disc feed guide member 49. At this time, the arm rotation control pin 59 contacts the second cam portion 58b of the second cam groove 58 of the second arm 55, and rotates while pressing the second cam portion 58b. Since the second cam portion 58b of the second cam groove 58 has the same curvature as the second cam portion 57b of the first cam groove 57, the second cam portion 57b of the first cam groove 57 is formed. At the same time, it is pressed by the arm rotation control pin 59. Therefore, the second arm 55 is integrated with the first arm 54 in a state where the roller 68 provided at one end is brought close to the outer peripheral edge of the optical disc D, and the second arm 55 is centered around the pivot 53 and is indicated by an arrow P in FIG. It rotates in the counterclockwise direction.

Next, the turntable 60 is further indicated by an arrow A in FIG.
If the arm rotation control pin 59 is rotated clockwise as shown in FIG.
While rotating while pressing the second cam portion 57b of the cam groove 57 of the first arm 54, the roller 65 provided at one end of the first arm 54 is brought into contact with the outer peripheral edge of the optical disc D. As the rotation of the turntable 60 in the direction of the arrow A in FIG. 10 progresses, the first arm 54 has a roller 65 at one end.
The optical disc D supported by is pushed up toward the feed guide portion 49a of the disc feed guide member 49. At this time, the arm rotation control pin 59 contacts the second cam portion 58b of the second cam groove 58 of the second arm 55, and rotates while pressing the second cam portion 58b. Since the second cam portion 58b of the second cam groove 58 has the same curvature as the second cam portion 57b of the first cam groove 57, the second cam portion 57b of the first cam groove 57 is formed. At the same time, it is pressed by the arm rotation control pin 59. Therefore, the second arm 55 is integrated with the first arm 54 in a state where the roller 68 provided at one end is brought close to the outer peripheral edge of the optical disc D, and the second arm 55 is centered around the pivot 53 and is indicated by an arrow P in FIG. It rotates in the counterclockwise direction.

Next, when the turntable 60 is further rotated clockwise in the direction of arrow A in FIG. 10, as shown in FIGS.
2, the arm rotation control pin 59 has the second cam portion 57b of the first cam groove 57 provided in the first arm 54.
And the second of the second cam grooves 58 provided on the second arm 55.
The cam portion 58b is rotated while being pressed. And
The optical disc D supported by a roller 65 provided at one end of the first arm 54 is the same as that of the first arm 54 shown in FIG.
(1) The outer peripheral edge is brought into contact with the feed guide portion 49a of the disc feed guide member 49 with the rotation in the direction of the middle arrow P. From here, the turntable 60 continues to rotate clockwise in the direction of arrow A in FIG. 10, and the arm rotation control pin 59 causes the first arm 54 to move in the counterclockwise direction in the direction of arrow P in FIG. As the optical disc D rotates, the optical disc D is moved by the first arm 54 to the disc feed guide member 4
It is guided to the disc reproducing unit 2 side by being guided by the feeding guide portion 49a of the reference numeral 9.

By the way, when the first arm 54 rotates in the direction of arrow P in FIG. 12 so as to feed the optical disk D to the disk reproducing unit 2 side, the arm rotation control pin 59 of the rotary disk 60, The second arm 55 rotates while contacting the third cam portion 58c which is a straight line of the second cam groove 58 of the second arm 55. By the rotation of the arm rotation control pin 59, the second arm 55 is rotated by the roller 68 at one end to a position slightly separated from the outer peripheral edge of the optical disc D which does not apply a load to the optical disc D.
That is, the second arm 55 is
Of the torsion coil spring 6 for urging the arm to rotate toward the first arm 54
It is rotated counterclockwise in the direction of the counter arrow Q in FIG. 11 against the urging force of 2. In this way, the torsion coil spring 6
Since the pressing force to the optical disc D generated by the urging force of 2 does not act, the optical disc D is smoothly fed in the mounting position direction to the disc reproducing unit 2 by the first arm 54 while being guided by the disc feeding guide member 49. To be done.

Next, when the turntable 60 further rotates in the clockwise direction indicated by the arrow A in FIG. 12, the arm rotation control pin 59 is moved to the second arm 55 provided on the second arm 55 as shown in FIG. Abutting against the third cam portion 58c of the cam groove 58 of
The third cam portion 58c is rotated while being pressed. Then, when the turntable 60 further rotates in the direction of arrow A in FIG. 13, the arm rotation control pin 59 rotationally moves from the third cam portion 58c toward the second cam portion 58b. The arm rotation control pin 59 is exactly the third cam portion 5.
When reaching the boundary portion between 8c and the second cam portion 58b, the optical disc D reaches the disc mounting position in the optical disc reproducing device 2. At this time, as shown in FIG. 13, the optical disc D is in a state of being supported by rollers 65 and 68 provided at one end of each of the first and second arms 54 and 55.

At this time, the first cam groove 57 provided on the first arm 54 and the first and second cam portions 58a and 58b of the second cam groove 58 provided on the second arm 55 coincide with each other. Is done. Then, the first and second cam portions 58a, 58b of the first cam groove 57 and the second cam groove 58, respectively.
Is a curved portion having the same curvature, and the center of the curvature is made to coincide with the axis 56 which is the rotation center of the turntable 60. Therefore, the arm rotation control pin 59 is stopped at any position of the portions where the first cam groove 57 and the second cam groove 58 are overlapped with each other and the curvatures are matched, whereby the optical disc D
Maintains the stopped state at the disc mounting position of the disc reproducing unit 2.

In the disk transport mechanism 42 constructed as described above, the arm rotation control pin 5 is placed at the eccentric position of the turntable 60 rotated by the rotation of the drive motor 61.
9 is provided, and this pin 59 allows the first and second arms 54,
The first and second cam grooves 57 and 5 formed in 55, respectively.
By adopting a structure penetrating through 8, the first and second arms 54 and 55 can be simultaneously rotated by the rotation of the turntable 60. Furthermore, changes in the shapes of the first and second cam grooves 57 and 58, particularly the second arm 55.
The change of the shape of the second cam groove 58 provided in the first cam portion 58a to the third cam portion 58c causes the first and second cam portions to change.
Rollers 65, 6 provided at one end of each arm 54, 55 of
It is possible to change the interval C between the eight while the arms 54 and 55 are rotating.

Thus, the first and second arms 54, 5
By changing the interval C between the rollers 65 and 68 provided at each one end of 5 during the rotation of these arms 54 and 55, the disk is rotated by the rotation of the turntable 60 in the clockwise direction of arrow A in FIG. The optical disk D housed and held in the housing unit 2 is taken out above the disk housing unit 2, and following the taking out of the optical disk D, the curved feed guide portion 49a of the disk feed guide member 49 and the first and second arms 54, 55. Roller 6 provided at one end of
Rollers 65 and 68 provided at one ends of the first and second arms 54 and 55 follow the movement trajectory when the optical disc D is conveyed to the disc mounting position of the disc reproducing unit 43 while being regulated by 5, 68. Will be done.
That is, by setting the curvature of the curved feed guide portion 49a provided on the disc feed guide member 49, the feed locus of the optical disc D can be freely changed.

Therefore, the first and second arms 54, 55
The spacing C of rollers 65, 68 provided at one end portion with respect to the disc movement trajectory D ₁ full arcuate in case of fixing with the,
It is possible to take a low elliptical disk movement trajectory D ₂ in the height direction, and it is possible to realize the disk transport mechanism 42 in which the movement space of the optical disk D is reduced.

The rotation angle of the turntable 60 is determined by the switch operating projection 71 and the two-position switch 72 which are provided on one main surface of the turntable 60, and in this example, it is 360 °. ing.

Further, as can be seen from the operation shown in FIGS. 6 to 14, the rotation direction of the first and second arms 54 and 55 in the initial stage is the first cam groove provided in the first arm 54. Due to the shape of 57, the arm rotation control pin 59 provided at the eccentric position of the rotary disk 60 is positioned vertically above the support shaft 56 that pivotally supports the rotary disk 60, which is the center of rotation of the rotary disk 60. Until it becomes a clockwise rotation. At this time,
The roller 68 provided at one end of the second arm 55 contacts the outer peripheral edge of the optical disc D accommodated in the disc accommodating unit 2, but if the optical disc D is inserted into the disc insertion groove 6 of the disc accommodating unit 2 to be selected. If not, the second arm 55 further rotates in the clockwise direction. Then, with the switch operating unit 55 on the other end side, as shown in FIG.
As shown in FIG. 4, the presence / absence detection switch 70 of the optical disc D is pressed to turn on the detection switch 70, for example.

That is, the first to third cam parts 58a to 58a formed in the second cam groove 58 provided in the second arm 55 to
Depending on the shape of 58c, the first and second arms 54, 5
At an early stage, which is the initial stage after the rotation of 5 starts,
The presence / absence of the optical disc D to be taken out can be detected. Furthermore, the first and second cam portions 57a, 57b and the second cam portions 57a and 57b formed in the first cam groove 57 provided in the first arm 54 are provided.
The center of curvature of the arc extending from the first and second cam portions 58a and 58b formed in the second cam groove 58 provided on the arm 55 to the center of the support shaft 56, which is the center of rotation of the turntable 60. By doing so, there is a margin in the stop angle of the turntable 60 at the mounting position of the optical disc D with respect to the disc reproducing unit 2.

This is because the arm rotation control pin 59 has the first
The first and second cam portions 57a and 57b formed in the first cam groove 57 provided in the arm 54 and the second arm 55.
The first cam portion 58 formed in the second cam groove 58 provided in the
The position of the optical disc D conveyed to the disc mounting position of the disc reproducing unit 2 does not change even if the optical disc D is stopped at any position where it overlaps with the portion from the a to the second cam portion 58b, which is highly reliable. The feeding operation of the optical disc D can be realized.

In the optical disk reproducing apparatus of this embodiment, a storage unit rotation restricting mechanism 73 is provided in the vicinity of the disk transport mechanism 42. As shown in FIG. 3, the storage unit rotation restricting mechanism 73 includes a disk reproducing unit mounting substrate 51 arranged in the outer casing 1.
Has a stopper piece 75 rotatably attached around a support shaft 74 that is planted on the lower end side of the. This stopper piece 7
Reference numeral 5 denotes a first arm 5 that constitutes the disc transport mechanism 42.
4 are arranged substantially parallel to each other. Also, the stopper piece 75
Is a tension spring 76 stretched between a spring locking portion 76a formed by bending a part of the lower end side of the disc reproducing unit mounting substrate 51 and a spring locking portion 76b provided on one end side of the stopper piece 75, It is always urged to rotate clockwise in the direction of arrow B in FIG.

Further, the stopper piece 75 is provided with a rotation restricting portion 77 formed in a tapered shape toward the upper end at the other end portion extended to the corner portion side of the outer casing 1. As shown in FIG. 3, the rotation restricting portion 77 contacts the arm rotation control pin 59 provided on the turntable 60 for rotating the first and second arms 54 and 55 of the disc transport mechanism 42. Thus, the rotation of the stopper piece 75 in the clockwise direction, which receives the biasing force of the tension spring 76, is restricted. In addition, a stopper pin 78 that projects toward the engaging recess 10 formed on the outer peripheral surface of the rotary table 5 of the disk storage unit 2 is planted on one end side of the stopper piece 75.

When the arm rotation control pin 59 provided on the turntable 60 rotates in the clockwise direction in FIG. 3 around the support shaft 56 in accordance with the disk transport operation of the disk transport mechanism 42, the stopper piece 75 also. The support shaft 74 is rotated in the clockwise direction of arrow S in FIG. At this time, the stopper pin 78 erected on one end side of the stopper piece 75 is
As shown in FIG. 4, among the engaging recesses 10 provided corresponding to the respective disc insertion grooves 6 provided on the outer periphery of the rotary table 5, the designated optical disc D to be conveyed by the disc conveying mechanism 42 is It engages with the one corresponding to the inserted disc insertion groove 6. This stopper pin 7
The engagement of 8 with the engagement recess 10 restricts the rotation of the disk storage unit 2 including the rotary table 5. Therefore, the storage unit rotation restriction mechanism 73 constitutes a protection mechanism during reproduction of the optical disc D and during the process of transporting the optical disc D.

In this example, the opening width W ₁ of each recess 8 is set slightly larger than the diameter of the stopper pin 78. Therefore, even if there is some error in the stop angle of the rotary table 5, the disc insertion groove 6 of the rotary table 5 in which the optical disc D designated to be conveyed to the disc reproduction unit 2 and reproduced is inserted accurately. It can be corrected so as to be located at a position corresponding to the disc transport mechanism 42.

Next, the disk reproducing unit 3 which constitutes this optical disk reproducing apparatus will be described. The disc reproducing unit 3 is mounted via a disc reproducing unit mounting substrate 51 arranged in the outer casing 1, and as shown in FIGS. 3, 15 and 17, the disc conveying mechanism. A disc rotation operation mechanism 80 having a disc table 81 on which the optical disc D transported by 42 is mounted, and a signal beam recording surface of the optical disc D mounted on the disc rotation operation mechanism 80 and rotated is irradiated with a light beam. An optical pickup device 82 is provided as reproducing means for reproducing information signals such as tone signals recorded on the optical disc D. The optical pickup device 82 includes an optical pickup including an objective lens that focuses a light beam emitted from a light source such as a semiconductor laser on a signal recording surface of the optical disc D and irradiates the signal recording surface. This optical pickup is supported by a slide guide shaft and is fed and operated in the radial direction of the optical disc D mounted on the disc rotation operation mechanism 80 by a pickup feed drive mechanism, whereby the signal recording surface of the optical disc D is moved to the inner and outer circumferences. Scan across.

By the way, in the disc reproducing unit 3, as shown in FIGS. 3, 15 and 17, the rotation axis of the disc rotation operation mechanism 80 is orthogonal to the support shaft 4 which is the rotation center of the disc storage unit 2. It is arranged in. Therefore, the rotation surface of the optical disc D that is mounted on the disc rotation operation mechanism 80 and is rotated is set to the disc storage unit 2
It is made parallel to the axial direction of the support shaft 4. By arranging the disk storage unit 2 in this way, the insertion direction of the optical disk D housed and held in the disk storage unit 2 with its main surface being substantially parallel to the support shaft 4 is changed. Without being carried, it is carried by the disk carrying mechanism 42 and mounted on the disk reproducing unit 3.

Next, the specific structure of the disc reproducing unit 3 will be described. The disc rotating operation mechanism 80 and the optical pickup device 82 are mounted on a pickup chassis support substrate 83 having a substantially housing shape via a pickup chassis (not shown). And constitutes an integrated disc playback block.

By the way, as is clear from FIGS. 3, 15 and 17, the disc reproducing unit mounting substrate 51 is parallel to the axial direction of the support shaft 4 of the disc accommodating unit 2, that is, the bottom surface of the outer casing 1. Are arranged substantially vertically. As shown in FIGS. 15 and 17, a disc drive unit support substrate 84 is rotatably attached to the disc reproduction unit attachment substrate 51 via a support shaft 85 attached to the upper end side of the attachment substrate 51. ing. The pickup chassis support substrate 83 is attached so as to hang down from a swing plate 87 that is elastically supported by the disk drive portion support substrate 84 via a floating mechanism 86.

Then, a pickup chassis support substrate 83 supporting the disc rotation operation mechanism 80 and the optical pickup device 82, and the pickup chassis support substrate 8
The rocking plate 87 to which 3 is attached constitutes the first supporting means of the disc reproducing unit 3. That is, the first supporting means constitutes a disk driving portion supporting means of the disk reproducing unit 3.

Further, a disc drive unit support substrate for rotatably supporting the pickup chassis support substrate 83 via a swing plate 87 on a disc reproduction unit mounting substrate 51 fixedly arranged on the outer casing 1 constituting the apparatus main body. Reference numeral 84 constitutes a second supporting means of the disc reproducing unit 3. The second support means is a disk drive rotation support means.

By the way, the swing plate 87 has three through holes. Through these through holes, support pins 88 that are erected on the disk drive portion support substrate 84 are passed. Then, the floating mechanism 86 includes the swing plate 87.
And the disk drive unit support substrate 84, the coil spring 89 inserted into the support pin 88 and the swing plate 8
7 and a damper 90 provided so as to surround the through hole formed in 7. The floating mechanisms 86 are provided at three locations corresponding to the support pins 88.

Further, the rocking plate 87 is provided with a lock pin insertion hole 91 located near the installation position of each floating mechanism 86. On the other hand, on the disk drive portion support substrate 84, the lock pin insertion holes 9 are formed at locations corresponding to the lock pin insertion holes 91 provided in the swing plate 87.
A lock pin 92 that is selectively inserted in 1 is integrally formed. The lock pin 92 has a tapered portion formed on the tip side. The lock pin insertion hole 91 formed in the swing plate 87 is formed to have a diameter substantially equal to the diameter of the tapered portion of the lock pin 92 on the tip end side on the base side.
Therefore, when the tapered portion on the tip end side of the lock pin 92 is inserted into the lock pin insertion hole 91, the lock pin insertion hole 91 is locked to the large diameter portion on the base side of the tapered portion, so that the lock pin insertion hole 91 swings. The movement of the moving plate 87 is restricted.

Further, in this optical disk reproducing apparatus, a floating lock mechanism 93 for restricting the elastic force of the floating mechanism 86 is provided. The floating lock mechanism 93 has a lock lever 9 extending in the width direction of the swing plate 87 above the swing plate 87.
4 One end of the lock lever 94 is rotatably attached to a side end surface of the disk drive portion support substrate 84 via a support shaft 95.

A first spring mounting member 96 is mounted on the upper end of the other end of the lock lever 94 located on the left side in FIG. First spring locking member 96 provided at 87
The second spring locking member 97 is attached at a position corresponding to. Then, these first and second spring locking members 9
A tension spring 98 is stretched between 6 and 97. Therefore, the lock lever 94 receives the biasing force of the tension spring 98, and is biased to rotate about the support shaft 95 in the direction of arrow T in FIG. As a result, the lock lever 94 presses the swing plate 87 downward. Therefore, the oscillating plate 87 is pressed and urged in the direction of approaching the disk drive unit supporting substrate 84 against the elastic force of the damper 90 and the spring 89. The oscillating plate 87 is pressed and urged toward the disk drive portion support substrate 84, whereby the lock pin 92
The tapered portion on the tip end side of the lock pin insertion hole 91 is inserted into the lock pin insertion hole 91, and the lock pin insertion hole 91 is locked to the large diameter portion of the tapered portion on the base side. As a result, the swing plate 8
7 and the disk drive portion support substrate 84 are integrated with a fixed space therebetween and are in a fixed state.

At the other end of the lock lever 94, which faces the support side of the support shaft 95, the tongue piece 9 is directed toward the lower side of the outer casing 1 on which the pickup chassis supporting board 83 extends.
4a is provided so as to hang down. This tongue piece 94a
Includes a guide hole 100 formed in a slider 99 described later.
The engaging pin 101 which is inserted in the is planted. The slider 99 can be moved in the vertical direction of the outer casing 1 with respect to the disk reproducing unit mounting substrate 51 by the vertical moving mechanism 102.

As shown in FIG. 17, the vertical moving mechanism 102 for moving the slider 99 is arranged on the other surface side of the disk reproducing unit mounting substrate 51 facing the side on which the disk reproducing unit 3 is arranged. ing. The vertical movement mechanism 102 is provided on the disk reproducing unit mounting substrate 51.
A drive motor 103 attached to the other surface side of and the reduction gear mechanism 104 including a plurality of gears. Each gear that constitutes the reduction gear mechanism 104 is rotatably attached via a support shaft that is planted on the disc reproduction unit attachment substrate 51.

The vertical movement mechanism 102 for moving the slider 99 in response to the driving force of the driving motor 103 to move the disk reproducing unit 3 and the floating lock mechanism 93 constitutes a third driving portion of this apparatus. Become.

The rotational driving force of the drive motor 103 is, as shown in FIGS.
03 of the reduction gear mechanism 1 via the driving force transmission belt 105 wound between the pulley 103b attached to the output shaft 103a and the pulley 104a constituting the reduction gear mechanism 104.
04 is transmitted. The drive motor 103 is rotationally driven in both forward and reverse directions. Then, the drive motor 10
The main gear 106 provided at the final stage of the reduction gear mechanism 104 to which the rotational driving force of No. 3 is transmitted is the drive motor 103.
The rotation operation is performed in both forward and reverse directions according to the rotation direction of.

By the way, one main surface of the main gear 106 facing the disk reproducing unit mounting substrate 51 is
A spiral groove 107 with which the engaging pin 108 that is planted on the slider 99 engages is engraved. An engagement pin 108 protruding from the slider 99 toward the main gear 106 is engaged with the spiral groove 107. Then, the drive motor 103
When the main gear 106 is rotated by rotationally driving the reduction gear mechanism 104, the support shaft 10 of the main gear 106 is rotated.
The slider 99 moves up and down with the rotation in the forward and reverse directions about 6a.

As shown in FIG. 16, the slider 99 is formed by bending a metal plate into a U-shaped cross section. On the upper end side of the slider 99, a pair of projecting pieces 99a and 99b projecting toward the disk reproducing unit 3 side are integrally formed. As shown in FIG. 17, an arcuate guide hole 100 having an arc shape, through which the engagement pin 101 that is set up on the lock lever 94 is inserted, is formed in one of the protrusions 99a.

By the way, in the disk drive portion support board 84 rotatably supported by the support shaft 85 attached to the upper end side of the disk reproduction unit lock board 51, the slider 99 is driven by the vertical movement mechanism 102 to be an outer casing. When the lock lever 94 is moved downward, which is the bottom surface side of 1, the lock lever 94 rotates in the direction of arrow E in FIG. That is, the side of the lock lever 94 that supports the slider 99 rotates in the direction of the bottom surface of the outer casing 1. The rotation of the lock lever 94 causes the lock lever 94 to move to the swing plate 8.
7 is pressed downward to integrate the oscillating plate 87 and the disk drive portion support substrate 84. Further, with the rotation of the lock lever 94 in the direction of arrow E in FIG. 18, the end portion of the disk drive portion support substrate 84 on the vertical movement mechanism 102 side rotates about the support shaft 85 in the same direction.

Then, when the engaging pin 108 erected on the slider 99 reaches the bottom dead center of the spiral groove 107 provided in the main gear 106, the downward movement of the slider 99 is stopped and the swing plate 87 is moved. As shown in FIG. 17, the disk drive unit support substrate 84 is integrated with the disk drive unit support substrate 84 and is inclined by an angle θ with respect to the horizontal line. Therefore, the disk rotation operation mechanism 8 provided so as to hang down on the swing plate 87.
0 and the pickup chassis support substrate 83 to which the optical pickup device 82 is attached are also inclined by an angle θ with respect to the vertical line. Then, the disc table 81 of the disc rotation operation mechanism 80 attached to the pickup chassis support substrate 83 is held in a position separated from the optical disc D conveyed into the disc reproducing unit 3.

On the other hand, the slider 99 moves the vertical movement mechanism 10
When moved to the upper side of the outer casing 1 by 2, the lock lever 94 is rotated in the direction of the arrow E in FIG. The rotation of the lock lever 94 releases the downward pressing of the swing plate 87. The swing plate 87 is elastically supported by the disk drive section support substrate 84 via the floating mechanism 86. Further, as the lock lever 94 rotates,
The disk drive portion support substrate 84 rotates about the support shaft 85 in the same direction as the lock lever 94. That is, the disk drive portion support substrate 84 rotates so that the end portion on the support portion side of the vertical movement mechanism 102 faces the upper side of the outer casing 1.

Then, when the engagement pin 108 erected on the slider 99 reaches the top dead center of the spiral groove 107 provided in the main gear 106, the movement of the slider 99 to the upper side of the outer casing 1 is stopped. As a result, the oscillating plate 87 is supported by the floating mechanism 86 while being elastically supported by the disk drive unit support substrate 84 so that its plate surface direction is along the horizontal direction. At this time, the pickup chassis supporting board 83 provided on the swing plate 87 is also in a state of hanging along the vertical line as shown in FIG. Then, the disc table 81 of the disc rotation operation mechanism 80 attached to the pickup chassis support substrate 83 approaches the optical disc D conveyed into the disc reproducing unit 3, and the optical disc D is positioned and mounted on the disc table 81. .

Further, the disk reproducing unit mounting substrate 5
1 is provided with a chucking mechanism 111 for chucking the optical disk D mounted on the disk table 81 together with the disk table 81. The chucking mechanism 111 includes a chucking member support arm 113 that supports a chucking member 115 having a magnet on the tip side. The chucking member support arm 113 is pivotally supported by a support shaft 112 mounted on the disc reproducing unit mounting substrate 51 on the base end side located on the upper side of the outer casing 1, and is rotatable via the support shaft 112. Supported by. Then, the chucking member 115
Is a disk table 81 of the disk rotation operation mechanism 80.
The chucking member support arm 11 so as to face the
3 is supported on the tip side.

By the way, the chucking member 115 is composed of a cylindrical bobbin having flanges formed at both ends and a ring-shaped magnet fitted inside the bobbin. Then, the chucking member 115 is attached by fitting the bobbin into the fitting hole 114 formed on the tip side of the chucking member support arm 113.
The bobbin is provided with flanges provided at both ends to prevent the bobbin from coming off, and is rotatably attached to the chucking member support arm 113.

The fitting hole 114 provided in the chucking member supporting arm 113 is provided in the chucking member type arm 11.
3 is formed in an elliptical shape in which the opening width is continuously reduced toward the tip side. As shown in FIG. 17, a thick portion 113a having substantially the same height as the space between the flanges of the bobbin is provided at the tip end side portion of the chucking member support arm 113 of the fitting hole 113. This thick part 11
3a, the chucking member 115 has a disk table 8
It is fitted between the pair of flanges when it is in a state of being separated from 1, and restricts the free movement of the chucking member 115.

Also, the chucking member support arm 113
When the chucking member support arm 113 rotates toward the disc table 81 side,
A guide piece 121 is provided to guide the chucking member 115 loosely fitted and supported on the disk 4 so as to move toward the center of the disk table 81. This guide piece 121
Is formed so as to incline toward the inner circumference of the fitting hole 114, as shown in FIG.

A chucking mechanism turning operation pin 122 is provided in a protruding manner on the other projecting piece 99b located on the chucking mechanism 111 side provided on the slider 99.
The chucking member support arm 113 is urged to rotate in a direction in which the chucking member 115 approaches the disk table 81 by a tension spring (not shown). Then, the chucking member support arm 115 is rotationally biased by the tension spring, so that the guide piece 121 is provided with the slider 99 and the chucking mechanism rotation operation pin 122 is provided.
Is always in contact with.

Therefore, when the slider 99 is located at the bottom dead center, the chucking mechanism rotating operation pin 122 causes the guide piece 121 of the chucking member support arm 113 to resist the urging force of a tension spring (not shown). Table 81
17, the chucking member support arm 113 is in a state of being separated from the disk table 81 inclined with respect to the vertical line, as shown in FIG. Then, when the slider 99 is moved to, for example, the upper side of the outer casing 1 by the vertical movement mechanism 102, the pressing force of the chucking mechanism rotation operation pin 122 is gradually released, and thus the chucking member support arm 113.
Receives the biasing force of a tension spring (not shown) and rotates toward the disk table 81. At this time, the chucking mechanism rotation operation pin 122 moves to the upper side of the outer casing while contacting the guide piece 121.

Also, the chucking member support arm 113
A locking piece 123 is projectingly provided on the tip side of the. on the other hand,
On the disk reproducing unit mounting substrate 51 side, a stopper piece (not shown) is cut and raised so as to face the locking piece 123. Then, as the slider 99 moves to the upper side of the outer casing 1, the chucking mechanism rotation operation pin 122.
When the pressing member 121 is gradually released from the guide piece 121 and the chucking member support arm 113 approaches the disk table 81 side by the tension spring, the locking piece 123 contacts the stopper piece. As a result, the rotation biasing position of the chucking member support arm 113 by the tension spring is restricted. Be held.

In this way, the chucking member support arm 1
When 13 is rotated to the disk table 81 side,
The optical disc D carried into the disc reproducing unit 3 is positioned and mounted on the disc table 81 by fitting a center hole into a centering member provided at the center of the disc table 81. That is, the optical disc D mounted on the disc table 81 is pressed and supported by the chucking member 115 attracted to the disc table 81 by the magnet, and is in a state of being rotatable integrally with the disc table 81.

Thereafter, the lock lever 94 moves the slider 9
Although the rotation of the outer casing 1 is further continued by the movement of the outer casing 1 of FIG.
As shown in FIG.
It abuts on a locking pin 124 provided on the. Therefore, the disk drive unit support substrate 84 maintains a state in which its plate surface direction is kept horizontal. At this time, the swing plate 87 rises due to the elastic force of the coil spring 89 of the floating mechanism 86. That is, the disc reproducing unit 43
Is a coil spring 8 of the floating mechanism 86 while maintaining a posture in which the main surface of the optical disc D is chucked in a vertical direction parallel to the support shaft 4 of the disc storage unit 2.
The pickup chassis support substrate 83, on which the disc rotation operation mechanism 80 and the optical pickup device 82 are supported, is elastically supported by the disc drive unit support substrate 84. Will be in a floating state.

The chucking member support arm 113
As shown in FIG. 16, a lever 113b horizontally extending toward the center of the rotary table 1 is provided on the base end side of the. The lever 113b has a support shaft 204 whose tip portion is set up on the disk reproducing unit mounting substrate 51.
It is pivotally supported on the shaft and is rotatable about the support shaft 204. A long hole 125 having a long diameter in the longitudinal direction is formed in the central portion of the lever 113b. An engaging pin 126 provided so as to project toward the chucking member support arm 113 at the upper portion of the disc feed guide member 49 is inserted into the elongated hole 125. Therefore, in the process in which the chucking member support arm 113 moves vertically to the upper side of the outer casing 1 of the slider 99, the disc feed guide member 49 is rotated about the support shaft 52, The disc feed guide portion 49a is separated from the outer peripheral edge of the optical disc D.

That is, the movement of the slider 99 to the upper side of the outer casing 1 causes the disc reproducing unit 43, the chucking member 115 and the optical disc D to move to the upper side of the outer casing 1. In this process, The disc feed guide member 49 escapes to the upper side of the outer casing 1 while keeping a constant distance with respect to the rising optical disc D, and prevents the optical disc D from colliding with the disc feed guide member 49 in advance. You can

When the slider 99 further moves to the upper side of the outer casing 1, the lock lever 94 is separated from the oscillating plate 87, whereby the elastic force of the lock lever 94 against the floating mechanism 86 is completely regulated. The optical disc D is released to the disc rotation operation mechanism 8
The disk table 81 of No. 0 is chucked to be rotatable together with the disk table 81, and the mounting to the disk reproducing unit 43 is completed.

Then, the disc rotation operation mechanism 80 of the disc reproduction unit 3 is driven to rotate the optical disc D, and the optical pickup device 82 is fed in the radial direction of the optical disc D to operate the optical disc D. The recorded information signal such as the musical tone signal is reproduced.

As described above, in this embodiment, since the lock mechanism 93 for selectively restricting the elastic force of the floating mechanism 86 is provided, the following advantages can be obtained.

By the way, the floating mechanism 86 does not require an optical pickup device 82 for reading the information signal recorded on the optical disc D in a non-contact state to the optical disc D and a disc rotation operating mechanism 81 for rotating the optical disc D from the outside of the device. In order to prevent such vibration from being propagated, the vibration path is mainly provided with an elastic body such as rubber or a spring such as a coil spring.

On the other hand, the position of the disc reproducing unit 3 supported via the floating mechanism 86 may be variable with respect to the optical disc D to which the disc rotating operation mechanism 80 is conveyed. Therefore, it may not be possible to reliably position and mount the optical disc D conveyed in the disc reproducing unit 3 on the disc table 81 of the disc rotation operation mechanism 80. That is, the center hole of the optical disc D is placed in the disc table 8
There is a possibility that the centering operation for engaging the centering portion provided at the center of 0 cannot be performed.

On the other hand, in the optical disk reproducing apparatus according to the embodiment of the present invention, as described above, the optical disk D is taken out from the disk storage unit 2 and conveyed to the disk mounting position of the disk reproducing unit 3, Floating mechanism 8 until mounted on table 81
The elastic displacement of No. 6 is fixed by the floating lock mechanism 93. Therefore, the center hole of the conveyed optical disc D and the centering member of the disc table 81 can be accurately aligned, and a reliable mounting operation of the optical disc D on the disc table 81 can be performed.

In order to return the optical disc D mounted in the disc reproducing unit 3 into the disc accommodating unit 2, the vertical moving mechanism 102 is operated to move the slider 99 toward the lower side of the outer casing 1. This slider 99
The chucking portion support arm 113 is rotated by the biasing force of the tension spring due to the movement of the. King is released. The optical disk D from which the chucking has been released is in a state of being supported on rollers 65 and 68 provided at the tip ends of the first and second arms 54 and 55 that form the disk transport mechanism 42. Then, the drive motor 61 of the disc transport mechanism 42 is reversely driven to rotate the turntable 60 in the counterclockwise direction in FIG. 15, whereby the optical disc D becomes the first and second arms 54 and 5.
While being supported at the two points on the outer peripheral edge side by the rollers 65 and 68 on the respective front end sides of No. 5, they are returned into the disk storage unit 2. That is, the optical disc D is the rotary table 5
Is inserted into the disc insertion groove 6.

By the way, the rotary table 5 is stored until the selected one optical disk D is taken out by the disk transport mechanism 42, mounted on the disk reproducing unit 3 to complete the reproduction, and returned to the disk storing unit 2 again. The rotation is restricted by the unit rotation restricting mechanism 73. Therefore, the optical disc D that has been reproduced and is returned to the disc storage unit 2 is accurately returned to the disc insertion groove 6 in which the optical disc D is to be stored.

Next, one optical disc D selected from the optical discs D stored in the disc storage unit 2 is in a state of being taken out from the disc storage unit 2 by the disc transport mechanism 42 and moved to a position. The storage unit rotational position detection mechanism 44 for detecting whether or not it will be described.

This storage unit rotation position detection mechanism 44
As shown in FIG. 3, the rotation detection body 131 attached to the outer peripheral edge of the lower end side of the cylindrical disk support 7 provided on the lower side of the rotary table 5 and the retrievable position by the disk transport mechanism 42. And a photodetector section 132 arranged at a position corresponding to.

The rotation detection body 131 is composed of first and second ring-shaped detection plates 133a and 133b which are provided at concentric circles of different diameters on the disk support 7. The first detection plate 133a is the second detection plate 1
33b has a diameter larger than that of 33b, and a concave-convex portion is formed on the lower end surface thereof at a constant pitch in the circumferential direction. That is, in this embodiment, the uneven portions are formed at a pitch corresponding to the 100 disc insertion grooves 6 formed on the rotary table 1. Therefore, in this embodiment,
In the uneven portion, for example, 100 convex portions 134 are formed.

On the other hand, the second detection plate 133b has the above-mentioned first
The detection plate 133a is provided with concave and convex portions located inward of the detection plate 133a and arranged at different pitches in the circumferential direction on the lower end surface thereof. In this embodiment, first, in FIG. 4, for example, the disc insertion groove 6 corresponding to the point indicated by the arrow O, that is, the home position is defined as the first disc insertion groove, and the optical disc D inserted into this disc insertion groove 6 is defined. Disk number is defined as "1". Then, the disk number is sequentially updated + along the direction indicated by the arrow F ₁ , and the disk number immediately before the disk number “1” becomes “100”.

In such a setting relationship, first, the second detecting plate 133b has no convex portion at the position corresponding to the disk number "1", and the position corresponding to the disk number "11" is one end surface, A protrusion having the other end face at the position corresponding to the disk number "12" is formed. This protrusion is
It has a width of one pitch in the arrangement pitch of the disc insertion grooves 6. Further, a convex portion is formed in which the position corresponding to the disc number "21" is one end face and the position corresponding to the disc number "23" is the other end face. This convex portion has a width of a pitch corresponding to two arrangement pitches of the disc insertion grooves 6. Further, a convex portion is formed in which the position corresponding to the disc number "31" is one end face and the position corresponding to the disc number "34" is the other end face.
This convex portion has a width corresponding to three arrangement pitches of the disc insertion grooves 6. Similarly, a convex portion is formed in which the width is set to the disc number every 10 and the disc insertion groove 6 is lengthened by one arrangement pitch. Generally speaking, the disk number “10n + 1 (n = 1, 2,
3 ... 9) ”as one end face and the position corresponding to the disc number“ 11n + 1 ”as the other end face, that is, a pitch of n in the array pitch of the disc insertion grooves 6. A convex portion having a width is formed.

Further, the light detecting section 132 has three light sensors. Each optical sensor is composed of a set of a light emitting element and a light receiving element, and the first and second optical sensors are installed at a predetermined interval with respect to the first detection plate 133a.
A third optical sensor is installed on the second detection plate 133b. These first to third optical sensors are set to output, for example, a high-level detection signal when detecting the corresponding convex portions of the detection plates 133a and 133b.

That is, as shown in FIG. 19, these optical sensors are the first and the first inserted between the controller 141 for performing various calculations and controls based on various signals and the ground GND.
Second and third detection switches SW1, SW2 and SW3
Is configured. Then, these detection switches SW1 and SW
2 and SW3 are turned on, for example, each time a convex portion is detected, and the controller 141 is provided with switches SW1 and SW3.
2 and the current change based on the turning on of SW3 are supplied as a detection signal.

The controller 141 controls the drive control circuit 1 based on the rotation request to the rotary table 51.
A drive signal and a deceleration request signal are supplied to 42. This rotation request of the rotary table 51 is an instruction to move the disc insertion groove 6 of the selected disc number to a position corresponding to the disc transport mechanism 42. Then, in terms of timing, the drive signal supplied to the drive control circuit 142 is the above-mentioned rotation when rotating the rotary table 5 by a certain rotation angle, for example, 40 pitches when converted by the array pitch of the disc insertion grooves 6. Stand up on demand,
Further, it is a pulse signal that falls when 40 pitches are counted based on the detection signal from each optical sensor. The deceleration request signal is a pulse signal that rises from the time of the remaining 10 pitches and falls when 40 pitches are counted, like the drive signal.

Then, the drive control circuit 142 has a constant level with respect to the drive motor 45 of the storage unit rotation drive mechanism 41 from the drive control circuit 142 during the period when only the drive signal is supplied to the drive control circuit. Drive current is supplied. Then, when the deceleration request signal is supplied, the level of the drive current supplied to the drive motor 45 is continuously reduced. In the above example, the circuit is configured so that the level of the drive current becomes zero when 40 pitches are counted. When the rotation angle is less than 10 pitches, the drive signal and the deceleration request signal rise at the same time.

Next, an example in which the stop control of the rotary table 5 is performed based on the detection signals from the first to third optical sensors will be described based on the signal waveform diagrams of FIGS. 20 to 22.

First, when the rotary table 5 is rotated, for example, in the direction of arrow F _{2 in} FIG. 4 by the rotational drive of the drive gear 47 by the drive motor 45 of the storage unit rotary drive mechanism 41, the optical sensors in FIGS. The detection signal waveform shown in FIG. 22 is output. Here, the waveform of the detection signal S1 from the first optical sensor and the waveform of the detection signal S2 from the second optical sensor have a phase difference according to the separation width of each optical sensor.

In addition, in this embodiment, the first and second
The period in which the detection signals S1 and S2 from the optical sensor are both at a high level indicates the stop position of the optical disc D. For example, the optical disc D with the disc number "7"
When it is desired to stop the disk at a position where it can be taken out by the disk transport mechanism 42, the rotary table 5 is stopped when both the first and second optical sensors detect the seventh convex portion. . Therefore, in this example, the separation width regarding the installation of the respective sensors is set so that the detection signals S1 and S2 (for example, the high level period) from the first and second optical sensors partially overlap. There is.

Then, the detection signal S from the third optical sensor
When the number of pulse signals formed by the logical product of the detection signals S1 and S2 from the first and second photosensors is 1 in the period in which 3 is at a high level, the time when the falling edge of the detection signal S3 is detected Thus, the optical disc D corresponding to the disc number "12" is located at the loading position A, and during the period when the detection signal S3 is at the high level, each detection from the first and second optical sensors is performed. When the number of pulse signals formed by the logical product of the signals S1 and S2 is two, the disk number "23" corresponds to the ejectable position O by the disk transport mechanism 42 at the time when the falling edge of the detection signal S3 is detected. The optical disk D is located.

Thus, the rotary table 5 is shown in FIG.
Of the pulse signal formed by the logical product of the detection signals S1 and S2 from the first and second photosensors during the period when the detection signal S3 is at the high level when the detection signal S3 is rotating in the direction of the arrow F ₂ in FIG. The number is m (m = 1, 2, 3.
··································································································································.

Further, when the rotary table 5 is rotating in the direction of the arrow F ₂ C in FIG. 4, the detection signal S3 is output from the first and second photosensors this time in the low level period. When the number of pulse signals formed by the logical product of the detection signals S1 and S2 is 9, the disc number “2” is set at the retrievable position O by the disc transport mechanism 42 at the time when the rising edge of the detection signal S3 is detected.
The optical disc D corresponding to "1" is located. Further, when the detection signal S3 is at a low level, the number of pulse signals formed by the logical product of the detection signals S1 and S2 from the first and second photosensors is 8
In the two cases, the optical disc D corresponding to the disc number “31” is located at the ejectable position O when the falling edge of the detection signal S3 is detected.

Thus, the rotary table 5 is shown in FIG.
Of the pulse signal formed by the logical product of the detection signals S1 and S2 from the first and second photosensors while the detection signal S3 is at a low level when the detection signal S3 is rotating in the direction of the arrow F ₂ in FIG. The number is m (m = 9, 8, 7,
In the case of 2), when the rising edge of the detection signal S3 is detected, the disk number “10
The optical disc D corresponding to (11-m) +1 "is located.

In this case, exceptionally, when the number of pulse signals formed by the logical product of the detection signals S1 and S2 from the first and second photosensors is 10 while the detection signal S3 is at a low level. Actually, there are cases where the number is 11, and in this case, the optical disc D corresponding to the disc number “11” is located at the removable position O at the time when the rising edge of the detection signal S3 is detected. become.

On the contrary, when the rotary table 5 is rotating in the direction of arrow F ₁ in FIG. 4, the first and second detection signals S3 are in the high level period.
When the number of pulse signals formed by the logical product of the detection signals S1 and S2 from the optical sensor of 9 is 9, the disc is moved to the retrievable position O by the disc transport mechanism 42 when the trailing edge of the detection signal S3 is detected. Number "9
The optical disc D corresponding to "1" is located. Further, when the detection signal S3 is at a high level, the number of pulse signals formed by the logical product of the detection signals S1 and S2 from the first and second photosensors is 8
In the case of two, the optical disc D corresponding to the disc number “81” is located at the ejectable position O at the time when the fall of the detection signal S3 is detected.

Thus, the rotary table 5 is shown in FIG.
Of the pulse signal formed by the logical product of the detection signals S1 and S2 from the first and second photosensors during the period when the detection signal S3 is at a high level when rotating in the direction of arrow F ₁ in FIG. The number is m (m = 9, 8, 7,
In the case of 1), when the rising edge of the detection signal S3 is detected, the disc number "10 m
The optical disc D corresponding to "+1" is located.

When the rotary table 5 is rotating in the direction of arrow S ₁ in FIG. 4, the detection signal S
3 this time, in the low level period, the first and second
When the number of pulse signals formed by the logical product of the detection signals S1 and S2 from the optical sensor of 2 is two, at the time when the rising of the detection signal S3 is detected, the disk number “89” corresponds to the retrievable position O. The optical disc D to be used is located. When the number of pulse signals formed by the logical product of the detection signals S1 and S2 from the first and second photosensors is three during the period when the detection signal S3 is low level, the detection signal S3 rises. When the falling is detected, the optical disc D corresponding to the disc number “78” is located at the removable position O.

Thus, the rotary table 5 is shown in FIG.
Of the pulse signal formed by the logical product of the detection signals S1 and S2 from the first and second photosensors while the detection signal S3 is at the low level when the detection signal S3 is rotating in the direction of the arrow F ₁ in FIG. The number is m (m = 2, 3, 4,
In the case of 9), when the rising edge of the detection signal S3 is detected, the disk number "{10
The optical disc D corresponding to (11-m) +1} -m "is located.

In this case, exceptionally, when the number of pulse signals formed by the logical product of the detection signals S1 and S2 from the first and second photosensors is 10 while the detection signal S3 is at a low level. However, in reality, there are 11 cases. In this case, the optical disc corresponding to the disc number “100” is located at the ejectable position O at the time when the rising edge of the detection signal S3 is detected. Become.

As is apparent from the above description, the detection signal S3 from the third optical sensor is a signal indicating the range corresponding to the uneven portions formed on the second detection plate 133b and corresponding to different pitches. (Hereinafter, referred to as a range signal.) At the time when the rising and falling edges of the range signal are detected, the optical disc D at each specific disc number is rotationally moved to the ejectable position O by the disc transport mechanism 42. Become.

Considering a case where the rotary table 5 is stopped when the optical disk D having this specific disk number is moved to the retrievable position O, the stop position is shown as a concept of an address used in a memory or the like. In this case, the stop position at the time when the rising and falling edges of the range signal (detection signal) are detected can be recognized as the absolute address of the optical disc D at the specific disc number.

The pulse signal formed by the logical product of the detection signals S1 and S2 from the first and second photosensors indicates the relative address to the absolute address indicated by the range signal.

More specifically, from the state where the rotary table 5 is stopped in a state where the optical disc D having the disc number “7” is in the retrievable position O, the rotary table 5 is placed in the retrievable position O with the disc number “13”. Optical disc D
To position and stop the rotary table 5,
That is, when moving from the absolute address "7" to absolute address "13", for example in the case of rotating in the arrow F ₂ direction in FIG. 4, in FIG. 20, on the drawing from the absolute address "7" is changed to the right It will be. At this time, paying attention to the waveform of the detection signal S3 from the third optical sensor, the high level is only at the absolute address "11", and the relative address during the period when the detection signal S3 is at the high level is counted. From this, it is understood that the absolute address at the time when the detection signal S3 from the third optical sensor changes from the high level to the low level is "12". Therefore, it is found that the stop position obtained by further increasing the relative address by "1" is the absolute address "13".

Next, from the absolute address "13" to the absolute address "2"
When moving to "2", it is known that the number of relative addresses where the detection signal S3 from the third optical sensor is low level is "2" by the time the movement is started. When the movement starts, the relative address will increase by one. Then, when the relative addresses that are sequentially updated are counted, the relative address number is "9" when the detection signal S3 from the third optical sensor changes from the low level to the high level, It can be seen that the absolute address at the time of this change is "21". Therefore, the absolute address "22" is the stop position obtained by incrementing the relative address by one. The same applies to the rotational movement in the direction in which the relative address is reduced (the direction indicated by arrow F ₁ in FIG. 4).

When the power is turned on, the absolute address is not known, but the relative address number of the section in which the detection signal S3 from the third optical sensor is at the high level or the low level is counted, so that the rotary table 5 It is possible to know the absolute address at an early point without rotating one turn.

As described above, according to the storage unit rotational position detecting mechanism 44 according to the present embodiment, the position O at which the optical disk D with the desired disk number stored in the disk storage unit 2 can be taken out by the disk transport mechanism 42.
In the case where the rotary table 5 is stopped by being positioned at, the optical disk D with the desired disk number can be easily and accurately moved to the predetermined retrievable position O and stopped. Moreover, without turning the rotary table 5 once when the power is turned on,
It is possible to quickly know which disc number of the optical disc D is located at the position O that can be taken out by the disc transport mechanism 42. In the above example, 1
The case where a specific optical disc D among the 00 optical discs is moved to a position O where it can be taken out is shown. Of course, 100 or more optical discs D or 100 or less optical discs D can be stored in the disc storage unit 2. Can also be applied.

Next, the circuit system of the optical disk reproducing apparatus of the above-mentioned embodiment will be described with reference to FIG. The electric circuit system in this optical disk reproducing apparatus processes character information in accordance with operation switches or operation buttons arranged on the operation panel 13 and operation signals via the remote control light-receiving section 152, and controls each section described later. A main control unit 153 for controlling, a memory unit 155 for storing character information processed by the main control unit 153, and a display for receiving and displaying the character information read by the main control unit 153 via the display driver 154. And part 28.

The main controller 153 drives the storage unit rotation drive mechanism 41, the disc transport mechanism 42, and the disc storage unit rotation position detection mechanism 44 shown in FIG.
The drive signal and the control signal are supplied to the drive system control circuit 156 which supplies the drive current to the drive circuit 8. In addition, this main control unit 153
Supplies a control signal to a signal processing circuit 160 which performs a predetermined signal processing on an electric signal detected by an optical pickup device 159 having a drive mechanism similar to the drive system 158. In this figure, the optical pickup device 159 and the drive system 158 are shown as a drive mechanism section 157. Further, the main control unit 153 converts the information signal output from the signal processing circuit 160 into, for example, an audio signal and outputs it, and also extracts a tracking error signal and a focusing error signal from the information signal to output a servo circuit (not shown). The reproduction circuit system 161 supplied to the system is also controlled.

FIG. 24 shows the detailed structure of the main control section 153 and the memory section 155. The main controller 153 also has a controller 162 that outputs a drive signal and a control signal to the drive system control circuit 156, a changeover switch 163, a disk number update circuit 164, a character memory 165, and a character update circuit 166. .

The memory section 155 is composed of, for example, an SRAM, and a file corresponding to the disk number is logically allocated to the array variable area. A backup circuit 167 is connected to the memory unit 155 so that the data in the memory unit 155 is not erased even when the power switch 15 on the operation panel 13 is turned off. Here, the disc numbers are numbers "1" to "100" corresponding to the disc insertion grooves 6 which are predetermined in the rotary table 5, as described above.

As shown in FIG. 25, each file has a flag area a which is bit-allocated corresponding to a group number.
And a memo storage area b in which a memo about the corresponding disk number is stored as code data such as alphanumeric characters and katakana characters, a disk number registration area c in which a disk number corresponding to the file order is registered, and a disk is present (1) / No (0) bit d. Each bit of the flag area a indicates whether the corresponding group is registered or not registered. For example, when “1” is set at the 1st bit, the 3rd bit and the 5th bit, group 1 and group 3 and group 5 indicate that the disk number is registered.

Next, the registration processing operation of the optical disk reproducing apparatus of the present embodiment, in particular, the memo input processing for registering character information such as a title for each disk number, for example, 100 optical disks D set on the rotary table 5. A group registration operation for grouping and managing each group, for example, performers, genres, and users, with reference to FIGS.
It will be described with reference to the flowchart of FIG.

First, in the memo input process, after the disc is designated by the switch designation key 20, step S1 in FIG.
As shown in, the process is started by operating the memo input key 26. Then, the main control unit 153 transfers the memo input program to the RAM area of the memory unit 155 as shown in step S2, and sets the playback device to the memo input mode. At this time, a cursor for input is displayed at the leading digit of the memo display in the memo display area 30 of the display unit 28.

Then, the process proceeds to step S3 to enter the disc number setting processing routine. In this disk number setting process, as shown in FIG. 27, it is determined in step S21 whether or not the rotary operation key 22 has been rotated rightward (clockwise). When the rotary operation key 22 is rotated rightward, the process proceeds to step S22, and the disk number currently displayed in the first disk number display area 31a is incremented by 1 and displayed. In this case, if the displayed disk number is "100", it is displayed as "1".

On the other hand, when the rotary operation key 22 is rotated to the left, the process proceeds to step S23, where the disk number currently displayed in the first disk number display area 31a is decremented by one. Is displayed. In this case, if the displayed disk number is "0" or "1", it is displayed as "100".

Then, each time the disc number is displayed, it is determined in the next step S24 whether or not the push button switch 24 has been operated. If the push button switch 24 is not operated, the process returns to step S21 again to determine whether or not the rotary operation key 22 has been rotated to the right,
Step S2 until the push button switch 24 is operated
The routine of 1 to S24 is repeated, and when the push button switch 24 is operated, for example, the currently displayed disk number is stored in the disk number working area, and the processing ends.

The processing routine returns to FIG. 26 again. In the next step S4, it is determined whether or not the rotary operation key 22 has been operated. When the rotary operation key 22 is operated, the process proceeds to the next step S5, and the character or number displayed at the position of the cursor is updated by the number corresponding to the number of clicks of the rotary operation key 22. For example, when the character or number displayed at the cursor position is, for example, "M" in the alphabet, if the rotary operation key 22 is clicked clockwise by +1 rotation operation, the display is in the positive direction of the alphabet. When the rotary operation key is clicked counterclockwise by +1 rotation, it is changed to the alphabet "L".

This process is repeated until a character or number that satisfies the registration at the digit where the cursor is positioned is displayed as shown in step S6. When the cursor is to be moved to the next digit, the push button switch 24 is operated (steps S7 and S8). After the cursor is moved to the next digit, the rotary operation key 22 is used to update the digit or character until a satisfactory character or number is displayed. By repeating these processes, a memo about the disk number is created. The created memo data is temporarily stored in the memo working area on the RAM area.

In step S4, if it is determined that the rotary operation key 22 is not operated, the process proceeds to step S9. This step S9 is the rotary operation key 2
This is a step of waiting for input by 2 for a certain period (16 seconds in this example), and the rotary operation key 22
If there is no input by, the process returns to the normal state and ends as shown in step S10.

On the other hand, when it is not necessary to move to the next character in step S7, the process proceeds to step S11, and it is determined whether or not the file key 23 has been operated. The file key 23 is used to determine whether or not the memo input process is completed. When the file key 23 is operated, the process proceeds to the next step S2, and the memo stored in the memo working area. The data is registered in the memo storage area b of the file corresponding to the disk number stored in the disk number working area among the many files registered in the memory unit 155. Then, as shown in step S13, the process returns to the normal state and ends.

Next, the group registration processing is started by operating the group entry key 19 as shown in step S31 of FIG. 28 after the group is designated by the switching designation key 20. Then, as shown in step S32, the main control unit 153 transfers the program for group registration to the RAM area of the memory unit 155, and sets the playback device in the group registration mode.

Then, in the next step S33, 1
It is determined whether any one of the 0 disk group designation keys 17 has been operated. When one disk group designation key 17 is pressed, the process proceeds to step S34 to enter the disk number setting processing routine. Since this disk number setting routine has been described in detail, its description is omitted here.

In the next step S35, of the many files registered in the memory, the file corresponding to the disk number stored in the disk number working area is read into the RAM area, and the flag area a of this read file is read. Set the bit corresponding to the group number of the operated disk group designation key in.

In the next step S36, it is determined whether or not the file key 23 has been operated. When the file key 23 is operated, the process proceeds to step S37 and RA
The file on the M area is registered in the original file on the memory based on the disk number stored in the disk number working area. That is, it overwrites.

Then, in the next step S38, the corresponding number on the registration group display portion 29a is turned on, and the group registration process is completed.

On the other hand, if it is determined at step S33 that the disc groove designating key 17 is not operated, then the processing advances to step S39. This step S39 is a step of waiting for an input operation by the disc groove designating key 17 for a certain period (16 seconds in this example). If there is no input by the disc groove designating key 17 even after 16 seconds, step S31 and before. State, that is, a normal key input waiting state (hereinafter, simply referred to as a normal state), and the process ends (step S40).

In step S36, the file key 2
If it is determined that 3 is not operated, step S
Proceed to 41. In this step S41, the file key 23
Is a step of waiting for an input operation by a certain period (16 seconds in this example), and even if 16 seconds elapse, the file key 23
If there is no input by, the process returns to the normal state and ends (step S42).

Next, the operation of reproducing the desired disc from the display unit 28 by sequentially calling up the contents of the memo input registered as described above and displaying them on the display unit 28 in this optical disc reproducing apparatus is shown in FIG. 30 flowchart and FIG.
A description will be given below with reference to the state change diagram.

The operation of sequentially calling and displaying the memo input information which is the character information is started by the user pressing the memo scan key 21 once with the operation panel 13 or the remote controller. At this time, the memo display area 30 of the display unit 28
As shown in FIG. 30A, "MEMO SCA
N ”is displayed.

In step S51, the main control portion 153 starts counting the search counter from the number of the disc currently loaded in the reproducing unit 3, and counts up as shown in step S52.

The count-up in step S52 is
As shown in step S53, it is determined whether the counted number matches the number of the currently mounted disc. If it is determined that they match, the process proceeds to step S51, and counting is started again. If it is determined that they do not match, the process proceeds to step S54.

In step S54, the information counted by the search counter, that is, the memo input information, is stored in the memory unit 15.
It is determined whether or not the data is stored in 5. If it is determined that the memo input information is present, the process proceeds to step S55, and if it is determined that the memo input information is not present, the process returns to step S52.

In step S55, the disc number and the memo input information counted by the search counter are set to the first value.
It is displayed in the disc number display area 31a and the memo display area 30 of the.

That is, when the memo scan key 21 is pressed by the user, the main controller 153 displays the function name shown in FIG. The closest disk number and its memo input information are displayed by the left scrolling display movement as shown in FIGS. That is, the main control unit 153 sequentially calls the data regarding the memo input information and the disc number from the character data storage region 155b and the disc number registration region 155c of the memory unit 155 and displays them on the display unit 28 via the display driver 154.

After the state shown in FIG. 30C, the main control section 153 determines whether or not there is information to be counted, as shown in step S54, that is, as the memo input information, characters such as a disc title are displayed. You are searching for a disk number that has information. Then, if there is a disc in which the character information is stored in the memory unit 155, the operation is performed as in step S55, and the disc number and its title are displayed by left scrolling as shown in (D) to (F) of FIG. To do.

Returning again to the flowchart of FIG. In step S56, the main control unit 153 determines whether or not the user has pressed the reproduction mode selection key 16a constituting the reproduction supporting unit 151 on the operation panel 13 or the reproduction mode selection key of the remote controller (not shown). If it is determined that the button is pressed, the process proceeds to step S58, and if it is determined that the button is not pressed, the process proceeds to step S57.

In step S58, the controller 153 determines that the disc number counted by the search counter has become the disc number targeted by the user. Then, the main control unit 153 controls the drive system 158 via the drive system control circuit 156, and sets the target disk at step S59.
As shown in FIG. 3, the optical disc drive is mounted on the disc rotation operation mechanism 80 of the disc reproduction unit 3, and the optical pickup device 159, the signal processing circuit 160 and the reproduction circuit system 161 are controlled to start reproduction.

Next, in this optical disk reproducing apparatus, the registration contents subjected to the group registration processing as described above, that is, the group number and the group title are sequentially called and displayed on the display unit 28, and the disk is reproduced from this display unit. The operation will be described below with reference to FIG.

The operation of sequentially calling and displaying the group number registered in the group and the group title which is the group character information is performed by the user while the apparatus is stopped.
It is started by pressing the memo scan key 21 twice in succession with 3 or the remote controller. At this time, the display unit 28
In the memo display area 30 of, "GROUP SCAN" is displayed as shown in FIG.

In step S61, the main control unit 153 stores the group number data registered in the group and the data of the group title which is the group character information in the memory unit 15.
5 flag area 155c and character data storage area 1
It is read from 55b and displayed on the display unit 28 in order from the group number 1 for a predetermined time. FIG. 30H shows a group title of CLASSICAL of group number 3.

The main controller 153 then proceeds to step S6.
At 2, it is determined whether the user has pressed the reproduction mode selection key 16a on the operation panel 13 or the reproduction mode selection key of the remote controller (not shown). Here, if it is determined that the button is pressed, the process proceeds to step S64. If it is determined that the button is not pressed, the process proceeds to step S63.

In step S63, the main control section 153 determines whether or not the display of CLASSICAL of the group number 3 as shown in FIG. 30 (H) is left for a predetermined time. Here, if it is determined that the predetermined time has elapsed, the main control unit 153 returns to step S61, and if it is determined that the predetermined time has not elapsed, the main control unit 153 returns to step S62.

In step S64, the main controller 153
Sets the group performance mode, controls the drive system 158 via the drive system control circuit 156, mounts the disc of the corresponding group title on the disc rotation operation mechanism 80 of the disc reproduction unit 3, and then performs the optical pickup device 159 and the signal processing. The circuit 160 and the reproduction circuit system 161 are controlled to start reproduction.

Here, after step S61, by pressing the memo scan key once by the user, it is possible to sequentially display the disk numbers and the memo input information of the disks registered in the group. Further, it is possible to start the reproduction from the display of the disc number and the memo input information in the group.

The function of sequentially displaying the memo input information and the group registration information described above can be canceled by pressing the stop key or the memo scan key of the operation panel 13 or the remote controller.

Further, the optical disk reproducing apparatus may cause the main control section 153 to perform the processing operation as shown in FIG. 32 to reproduce the disk registered in the group.

First, the main controller 153 causes the step S81.
As shown in FIG. 3, the processing is started by operating the disk group designation key 17, and RA of the memory unit 155 is started.
Transfer the program for reproduction processing to the M area, and then execute step S
As shown at 82, the optical disk reproducing apparatus is set to the reproducing mode. At this time, the operated disk group designation key 17 is displayed in the group number display area 29b of the display unit 28.
The group number corresponding to is displayed.

Then, in the next step S83, among the many files registered in the memory section 155, the file in which the bit corresponding to the group number in the flag area a is “1” is searched, and the corresponding file is searched. All files to be R
Reading is performed in order of the disk number to the file working area in the AM area. In this search processing, if there is a file in which the group number is registered, the process proceeds to the next step S84, and the number corresponding to the operated disk group designation key 17 in the registered group display portion 29a is made to blink. From this state, the input of the rotary operation key 22 is awaited.

In step S85, the main controller 153
Determines whether the rotary operation key 22 has been operated. When the rotary operation key 22 is operated, the process proceeds to the next step S86, the files read in the RAM area are sequentially updated according to the rotation of the rotary operation key 22, and the updated file is updated. Of the disk number registered in the disk number registration area c and the memo stored in the memo storage area b are displayed in the first disk number display area 31a and the memo display area 3 of the display unit 28, respectively.
Display at 0. Further, in this example, the disk number registered in the disk number registration area c of the file to be updated next is displayed as the second disk number display area 31 of the display unit 28.
Display in b. Further, in this example, if the disk presence (1) / absence (0) bit of the updated file is “0”, the optical disk D is not set in the memo display area 30 of the display unit 28. Is displayed, for example, "No Disc" is displayed.

Then, each time the disk number and the memo are displayed, the push button switch 24 is pressed in the next step S87.
Is operated. When the push button switch 24 is not operated, the process returns to step S85 again to determine whether or not the rotary operation key 22 is operated, and the routine of steps S85 to S87 is repeated until the push button switch 24 is operated.

When the push button switch 24 is operated,
In step S88, the information signal is reproduced for the optical disc D having the displayed disc number. Then, in step S89, the registered group display unit 29
Turn on the corresponding number in a.

On the other hand, when it is determined in step S83 that the group corresponding to the operated disk group designation key 17 is not registered, the process proceeds to step S90,
An error message (for example, "NO ENTRY") is displayed in the memo display area 30 of the display unit 28 for, for example, 1 to 2 seconds. When this error message finishes displaying,
The process proceeds to step S91, returns to the normal state, and ends.

If it is determined in step S85 that the rotary operation key 22 is not operated, the process proceeds to step S92. This step S92 is a step of waiting for input by the rotary operation key 22 for a certain period (16 seconds in this example), and even after 16 seconds have elapsed, the rotary operation key 2
If there is no input by 2, the process returns to the normal state and ends as shown in step S93.

Next, when the disc is reproduced while the disc number and the memo input information are sequentially displayed, when the group performance is performed while the group registration information is sequentially displayed, and the rotary operation key is further used. The detailed operation of each drive system of this optical disk reproducing apparatus when a disk is selected from the information registered in group 22 and reproduced will be described below.

The main control section 153 uses the reproduction mode switch 1
6a or the push button switch 24 is operated, the drive system control circuit 156 is instructed by the drive system 158, that is, the storage unit rotation drive mechanism 41, the disk transport mechanism 42, and the disk storage unit rotation position detection mechanism 44 shown in FIG. A drive signal and a control signal are supplied so as to drive and control.

For example, when the drive system 158 is the storage unit rotary drive mechanism 41, the drive system control circuit 156 supplies a drive current to the drive motor 45. As a result, the rotary table 5 is rotationally driven.

The main control section 153 has the rotary table 5
Simultaneously with the rotation of the optical disk D, the rotational position of the rotary table 5 is detected by the disk storage unit rotational position detection mechanism 44 shown in FIG.
At the stage where the disk transport mechanism 42 has reached the position where it can be taken out, a stop signal is output to the drive system control circuit 156. Then, the main controller 153, based on the supply of the stop signal from the disk storage unit rotation position detection mechanism 44, drives the drive motor 45 of the storage unit rotation drive mechanism 41.
And outputs a stop signal to the drive control circuit. As a result, the supply of the drive current from the drive control circuit 156 to the drive motor 45 is cut off, and the rotary table 5 is stopped. That is, when the optical disc D corresponding to the target disc number reaches the position where it can be taken out by the disc transport mechanism 42, the rotary table 5 is stopped.

After that, the main control section 153 gives the drive system control circuit 156 a signal instructing to transfer the control to the disk transport mechanism 42. The drive system control circuit 156 outputs a drive signal to the drive motor 61 of the disk transport mechanism 42, which is the drive system 158, based on the supply of the instruction signal. The drive motor 61 of the disc transport mechanism 42 rotates the turntable 60 based on the drive signal of the drive system control circuit 156. By the rotating operation of the turntable 60, the first and second arms 54 and 55 that form the disk feeding mechanism 50 are turned and operated as described above, and the disk storage unit 2
The operation of transporting the optical disc D stored in the disc to the disc mounting position of the disc reproducing unit 2 is performed.

When the disc feed mechanism 50 conveys the selected optical disc D from the disc storage unit 2 to the disc mounting position, the two-position switch 72 is operated by the rotary disc 60, and the optical disc D is moved.
Has been detected to have been transported to the disc mounting position. Then, the 2-position switch 72 outputs a detection signal indicating that the disc has been transported. The drive system control circuit 156 stops the drive motor 61 of the disc transport mechanism 42 based on the supply of the detection signal. As a result, the supply of the drive current from the drive system control circuit 156 to the drive motor 61 is cut off, and the rotation of the turntable 60 is stopped.

After that, the main control section 153 gives the drive system control circuit 156 a signal instructing to move the control operation to the vertical movement mechanism 102 of FIG. Drive system control circuit 15
6 is a vertical movement mechanism 1 based on the supply of the instruction signal.
No. 02 drive motor 103 outputs a drive signal. The drive system control circuit 156 is configured to drive the drive motor 1 of the vertical movement mechanism 102 based on the drive signal supplied from the main control unit 153.
A drive current is supplied to the motor 03 to rotate the main gear 106. As the main gear 106 rotates, the optical disc D conveyed to the disc mounting position is chucked to the disc reproducing unit 43.

Subsequently, the main control section 153 gives a signal to the drive system control circuit 156 instructing to transfer the control operation to the disc reproducing unit 43 of the drive system 158. Based on the supply of the instruction signal, the drive system control circuit 156 energizes the disc rotation operation mechanism 80 of the disc reproduction unit 43 to rotate the optical disc D integrally with the disc table 81 in one direction, and also causes the optical pickup device 82 to move. The optical disc D is moved in the radial direction to reproduce the pit information corresponding to the information signal recorded on the optical disc D. The reproduction signal from the optical pickup device 82 is supplied to the reproduction circuit system 161 via the signal processing circuit 160, and is separated into an audio signal, a tracking error signal, and a focusing error signal. The audio signal is output from the output terminal of the reproducing circuit system 161, and the tracking error signal and the focusing error signal are supplied to a servo circuit system (not shown).

If no optical disc is inserted in the disc insertion groove 6 of the disc number designated in the disc storage unit 2 and there is no optical disc to be conveyed by the disc conveying mechanism 42, the disc feeding mechanism 5
The disk presence / absence detection switch 70 is operated by the second arm 55 forming 0. Then, the detection signal output by operating the disk presence / absence detection switch 70 is supplied to the main control unit 153 via the drive system control circuit 156. The main control unit 153 determines whether or not the file corresponding to the disk number of the optical disk D that is the reproduction target among a large number of files read out to the RAM area.
Change / register the non-bit to "0".

Also, in this optical disk reproducing apparatus,
When the rotary operation key 22 is simply operated from the normal state, the optical disc D is reproduced based on the file currently read in the file working area of the main control unit 153. That is, the files are sequentially updated according to the rotation operation of the rotary operation key 22, and the reproduction is performed on the optical disk D corresponding to the disk number registered in the disk number registration area c of the updated file. Even in this case, of course, the disc number of the optical disc D to be reproduced is displayed in the first disc number display area 31a, and the disc number to be updated next is displayed in the second disc number display area 31b. It

The above description of the reproduction mode is mainly directed to the continuous reproduction mode (generally referred to as CONTINUE mode). When the CONTINUE mode is desired, the upper right stage at the lower center of the operation panel 13 is described. It can be set by operating the CONTINUE key 201 located on the left side of the three mode setting keys 201, 202 and 203 arranged in.

The remaining two modes, that is, the single-image playback mode (generally referred to as SHUFFLE mode) and the program mode (PROGRAM mode), are set in the center among the three mode setting keys 201, 202 and 203. It can be set by operating the SHUFFLE key 202 located and the PROGRAM key 203 located on the right side.

Like the CONTINUE mode, the SHUFFLE mode is based on the file read in the file working area of the RAM area of the memory unit 155.
The optical disc D is reproduced, and the optical disc D to be reproduced next can be randomly selected by the rotary operation key 22. That is, the rotary operation key 22 is rotated to randomly select 1 from each disk number of the file read in the file working area.
One disc number is selected and the optical disc D to be reproduced next is set. In this case, the selected disc number is displayed in the second disc number display area 31b.

In the PROGRAM mode, the memory unit 155
Change the order of the files read to the file working area in the RAM area by using the rotary operation key 22,
The optical disc D is reproduced based on the changed file. In this case, similarly to the CONTINUE mode, the reproduction is performed in the order of the files, and the second disc number display area 31b displays the disc number of the file next to the file to be reproduced.

As described above, in this optical disc reproducing apparatus, since various data are updated by the rotary operation keys 22, normally, in the reproducing apparatus capable of reproducing a large number of optical discs D, data setting is performed. If you do
Although it was necessary to input and update using many keys, it is possible to substitute many of these keys with one rotary operation key 22, and to simplify the key arrangement on the operation panel 13. You can Further, since the data update can be performed by an easy-to-understand operation such as rotation, anyone can easily perform the data registration operation, which generally requires a complicated operation, and improve the operability of the optical disc reproducing apparatus. Can be planned. Moreover, since a memo is registered for each disk number, it becomes possible to perform group registration while referring to the disk number and the memo, which simplifies confirmation work during registration and reduces erroneous registration. be able to.

Also, the first disc number display area 31a
Since the disc number currently being reproduced is displayed on the second disc number, and the disc number to be reproduced next time is displayed on the second disc number display area 31b, in the optical disc reproducing apparatus capable of reproducing a large number of optical discs D from the past, It is possible to solve the disadvantage that has been problematic, that is, to know what is played next and to confirm the order by key operation one by one, further improving operability. be able to.

In the above example, the rotary operation key 22 and the push button switch 24 installed on the operation panel 13 are used to update and set various data. 22 and the push button switch 24 may be installed to update and set various data by remote control.

In the above example, one memo is registered for one disk number. However, the content of the memo may be changed between groups for one disk number.

Further, in this optical disk reproducing apparatus, when the user presses the memo scan key 21 once, the memo input information, which is character information, is sequentially displayed together with the disk number on the display unit 28, so that a simple operation is possible. The target disc can be selected from multiple discs by the procedure. Further, since the memo input information is scrolled leftward and sequentially displayed, it is effective in a device with a small display capacity and a large storage amount. In addition, since it can be automatically and repeatedly displayed, it is possible to prevent oversight.

Further, since the reproduction can be performed from this sequential display state by the reproduction mode selection switch or the like, the user does not repeat the same operation until the target disc or tune is selected and reproduced.

In this optical disc reproducing apparatus, the number of the group registered in the group and the group title are displayed on the display unit 28 for a predetermined time each time the user presses the memo scan key 21 twice.
It is also possible to sequentially display only the group-registered disk groups, instead of all the disks. This is especially
This is effective when there are a plurality of users and when it is desired to manage discs by grouping them by performer, genre, and the like.

Further, in the optical disk reproducing apparatus of this embodiment, the order of displaying in the memo display area 30 of the display section 28 is the order of the disk slit numbers, but the alphabetical order and the iwayo order may be used. Alternatively, the first one character may be designated by the alphabet and only the same first character group may be sequentially displayed.

Further, in the optical disk reproducing apparatus of this embodiment, the display is performed in disk units, but it is also possible to display in track units, that is, music units. In this case, the information of the track unit to be displayed may be recorded at the disc manufacturing stage, that is, at the premaster, or may be newly recorded by the user on the disc. In addition, for example, by pressing the memo input key 26 in the memory unit of the optical disk reproducing device instead of the disk to set the device memo input mode, the track number is set by using the rotary operation key 22. You may record by the process similar to the process of the shown flowchart. Then, in order to sequentially display the track numbers and their song titles, the same processing as the processing of the flowchart shown in FIG. 29 may be performed in track units instead of disk units. By sequentially displaying the character information in track units and instructing the reproduction from the sequential display state as described above, it is possible not only to shuffle the songs only within the disc but also to shuffle the songs between the discs.

Further, as shown in FIG. 33, the optical disk reproducing apparatus of the present embodiment has three units 172, 173 and 17, for example.
4 and controlling the drive system, signal processing system and reproduction system by the master controller 171, it is possible to reproduce a very large number of discs by a simple operation while accommodating them as in the above embodiment. it can. In addition, in this way, the master controller 171 is used for the optical disc reproducing apparatus 1.
By controlling 72, 173, and 174, for example, the disc D ₁ being reproduced by the optical disc reproducing device 172.
Simultaneously with the end of the song on track T ₁ , that is, the waiting time is set to almost zero, the playback of the song on track T _n of another disc D _n can be started by another optical disc playback device 173. Of course, the waiting time between songs can be adjusted longer.

Further, in the above embodiment, an example in which the disc reproducing device according to the present invention is applied to a reproducing device for an optical disc has been shown, but recording and / or reproducing using a disc-shaped recording medium such as a magneto-optical disc. It can also be applied to a device.

[0208]

The disc reproducing apparatus according to the present invention corresponds to the storing means for storing a plurality of discs, the reproducing means for selectively selecting and reproducing the discs from the storing means, and the plurality of discs. In a disc reproducing apparatus provided with an input means for inputting the character information, and a storage means for storing the character information input by the input means, an operating means for instructing a search for the character information, and an operating means for the operating means. According to the operation, it has a control means for sequentially reading out the character information from the storage means in a predetermined order, and a display means for sequentially displaying the character information read by the control means. At the same time, they can be sequentially displayed on the display unit, and the target disc can be selected from a plurality of discs by a simple operation procedure. Further, since the memo input information is scrolled leftward and sequentially displayed, it is effective in a device with a small display capacity and a large storage amount. In addition, since it can be automatically and repeatedly displayed, it is possible to prevent oversight.

[Brief description of drawings]

FIG. 1 is an external perspective view of an optical disk reproducing device according to an embodiment of the present invention.

FIG. 2 is a front view of a main portion showing an operation panel portion of the optical disk reproducing device.

FIG. 3 is a side view showing a main part mechanism of the optical disk reproducing device.

FIG. 4 is a plan view showing a part of a rotary table and a part of a disc carrying mechanism which constitute the optical disc reproducing device.

FIG. 5 is a front view showing a rotary table and a disc carrying mechanism which constitute the optical disc reproducing apparatus.

FIG. 6 is an operation progress chart showing an initial state of the operation of the disk transport mechanism of the optical disk reproducing apparatus.

FIG. 7 is a view showing an operation of the disk carrying mechanism of the optical disk reproducing apparatus, and is an operation progress chart showing a state where the tip end portion of the second arm is in contact with the optical disk at the disk removable position.

FIG. 8 shows the operation of the disc transport mechanism of the optical disc reproducing apparatus, in which the turntable further rotates clockwise after the tip of the second arm is in contact with the optical disc at the disc removal position. FIG. 6 is an operation progress diagram showing a state in which the first arm is rotating clockwise in accordance with the above.

FIG. 9 is a view showing an operation of the disk transport mechanism of the optical disk reproducing apparatus, and is an operation progress chart showing a state in which the first arm is switched from clockwise rotation to counterclockwise rotation.

FIG. 10 is a view showing the operation of the disk transport mechanism of the optical disk reproducing apparatus, and is an operation progress chart showing the moment when the tip of the first arm abuts the optical disk at the disk removable position and lifts the optical disk upward. is there.

FIG. 11 is a view showing the operation of the disc transport mechanism of the optical disc reproducing device, in which the optical disc is lifted obliquely upward and is in contact with the disc feed guide member in accordance with the rotation of the first arm in the counterclockwise direction. FIG.

FIG. 12 shows the operation of the disc transport mechanism of the optical disc reproducing apparatus, in which the optical disc is guided by the disc feed guide member as the first arm rotates counterclockwise, and the disc mounting position of the disc reproducing unit is shown. FIG. 7 is an operation progress chart showing a state in which a feeding operation is performed in a direction.

FIG. 13 is a view showing an operation of the disk transport mechanism of the optical disk reproducing apparatus, and is an operation progress chart showing a state where the optical disk is fed to the disk mounting position with respect to the disk reproducing unit and operated.

FIG. 14 is an operation progress chart showing the operation of the disk transport mechanism of the optical disk reproducing apparatus, showing the operation when there is no optical disk at the disk removable position.

FIG. 15 is a structural diagram showing a portion of a disc reproducing unit which constitutes the optical disc reproducing device.

FIG. 16 is a plan view showing a portion of a disc reproducing unit which constitutes the optical disc reproducing device.

FIG. 17 is a front view showing a portion of a disc reproducing unit which constitutes the optical disc reproducing device.

FIG. 18 is a front view showing a state where an optical disc is mounted in a disc reproducing unit which constitutes the optical disc reproducing device.

FIG. 19 is a block diagram showing a signal transmission system of a rotational position detection mechanism which constitutes an optical disk reproducing device.

FIG. 20 is a signal waveform diagram showing a detection signal output from each optical sensor in the rotation position detecting mechanism constituting the optical disc reproducing apparatus, and particularly, the disc numbers “1” to “3”.
The signal waveform of each detection signal up to 2 "is shown.

FIG. 21 is a signal waveform diagram showing a detection signal outputted from each optical sensor in the rotation position detecting mechanism which constitutes the optical disc reproducing apparatus, and particularly, a signal of each detection signal from the disc number “32” to “65”. The waveform is shown.

FIG. 22 is a signal waveform diagram showing a detection signal outputted from each optical sensor in the rotation position detecting mechanism which constitutes the optical disc reproducing apparatus, and in particular, a signal of each detection signal from disc numbers “66” to “100”. The waveform is shown.

FIG. 23 is a block diagram showing a circuit system of the optical disc reproducing apparatus.

FIG. 24 is a diagram showing a detailed configuration of a main control unit and a memory unit in the circuit system shown in FIG. 23.

FIG. 25 is an explanatory diagram showing a structure of a file allocated to a memory unit of the optical disk reproducing device.

FIG. 26 is a flowchart showing a memo input process in the optical disc reproducing apparatus.

FIG. 27 is a flowchart showing a disc number setting process in the optical disc reproducing device.

FIG. 28 is a flowchart showing a group registration process in the optical disc reproducing device.

FIG. 29 is a flowchart showing a process of sequentially displaying memo input information and reproducing a desired disc on the optical disc reproducing device.

30 is a state change diagram of the display unit 28 associated with the processing shown in FIG.

FIG. 31 is a flowchart showing a process in which a group number and a group title are sequentially displayed on the optical disc reproducing apparatus and a group performance mode is set.

[Fig. 32] Fig. 32 is a diagram showing a flowchart of another process for reproducing a group-registered disc by the optical disc reproduction device.

FIG. 33 is a diagram showing a schematic configuration in which three optical disk reproducing devices are connected to a master controller.

[Explanation of symbols]

 D Optical disc 1 Outer housing 2 Disc storage unit 3 Disc playback unit 5 Rotary table 6 Disc insertion groove 7 Disc support 13 Operation panel 17 Disc group designation key 19 Disc group entry key 21 Memo scan key 22 Rotation operation key 24 Push button switch 26 Memo input key 28 Display unit 41 Storage unit rotation drive mechanism 42 Disc transport mechanism 44 Disc storage unit rotation position detection mechanism 49 Disc feed guide member 50 Disc feed mechanism 51 Disc playback unit mounting substrate 54 First arm 55 Second arm 57 First cam groove 58 Second cam groove 59 Arm rotation control pin 60 Rotating plate 61 Drive motor 62 Torsional coil spring 70 Disc presence / absence detection switch 80 Disc rotation operation mechanism 8 Disc table 82 Optical pickup device 84 Pickup chassis 86 Floating mechanism 93 Floating lock mechanism 102 Vertical movement mechanism 111 Chucking mechanism 131 Rotation detector 132 Photodetector 133a First detection plate 133b Second detection plate SW1 First detection switch SW2 Second detection switch SW3 Third detection switch 150 Memo input means section 151 Playback instruction means section 152 Remote control light receiving section 153 Main control section 154 Display driver 155 Memory section 156 Drive system control circuit 158 Drive system 160 Signal processing circuit 161 Reproduction circuit system

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshiyuki Takahashi 6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Sony Corporation

Claims (11)

[Claims] 1. Storage means for storing a plurality of discs, reproduction means for selectively selecting and reproducing the discs from the storage means, and input means for inputting character information corresponding to each of the plurality of discs. A disc reproducing apparatus comprising a storage unit for storing the character information input by the input unit, an operation unit for instructing a search for the character information, and a storage unit for operating the operation unit. A disc reproducing apparatus comprising: a control unit that sequentially reads the character information in a predetermined order, and a display unit that sequentially displays the character information read by the control unit. 2. The disc reproducing apparatus further has a reproducing instructing means, and the control means actually displays the display means if the reproducing supporting means is operated while the character information is being sequentially displayed on the display means. 2. The disc reproducing apparatus according to claim 1, wherein the disc corresponding to the displayed character information is mounted on the reproducing means and controlled for reproduction. 3. The disc reproducing apparatus according to claim 1, wherein the predetermined order is an alphabetical order. 4. The disc reproducing apparatus according to claim 1, wherein the predetermined sequence is a disc number sequence. 5. The disc reproducing apparatus according to claim 1, wherein the predetermined order is an eye-wear order. 6. The disc reproducing apparatus according to claim 1, wherein the retrieval of the character information is performed on all the character information stored in the storage means. 7. The disc reproducing apparatus further has a function of grouping the discs into groups, and the display unit sequentially displays group character information relating to the grouped groups. Disc playback device. 8. The operating means gives an instruction to search for character information about a track, the control means sequentially reads out the character information about the track in a predetermined order in response to an operation of the operating means, and the display means controls the control. 2. The disc reproducing apparatus according to claim 1, wherein the character information regarding the tracks read from the means is sequentially displayed. 9. The disc reproducing apparatus according to claim 8, wherein the predetermined order is an alphabetical order. 10. The disc reproducing apparatus according to claim 8, wherein the predetermined sequence is a disc number sequence. 11. The disc reproducing apparatus according to claim 8, wherein the predetermined order is an eye-wear order.