JPS6292274A - Information recording and reproducing device - Google Patents

Abstract

PURPOSE:To exactly perform the positioning of a recording medium and to move a placing table at a high speed by providing a means that presses an information recording medium on, at least, one of medium positioning reference planes on the placing table at the outside of the placing table. CONSTITUTION:The tip of an optical card inserted from the aperture 110 of a card inserting part 108 in an arrow head A direction passes through between the rollers 86 and 96 and furthermore, it travels on an optical card placing part 4 in a shuttle 2 having the same height. At such a time, the optical card is pressed on the placing part 4 with card pressing members 6 and 8, however, the optical card travels furthermore with a send-in force based on the driving force of a motor and the pulling force of springs 100 and 102 and at least the tip of the card collides against a stopper 14 on the shuttle 2. During the advancement of the optical card on the placing part 4, one edge of the card in the direction of X is pressed with a pressing means 3 and the facing other edge is pressed against a wall plane at the lower part of the pressing member 6, completing the positioning in all directions of X, Y and Z. By such a constitution, the accurate positioning of the recording medium can be obtained and the movement of the placing table can be performed at a high speed.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to an apparatus for recording information on a recording medium and/or reproducing information recorded on a recording medium, and particularly relates to a device for recording information on a recording medium and/or reproducing information recorded on a recording medium, and particularly relates to a device for recording information on a recording medium and/or reproducing information recorded on a recording medium. The present invention relates to an information recording and reproducing apparatus that records and/or reproduces information by relatively reciprocating a sheet-like recording medium and a head unit for processing information on the medium.

Such an information recording/reproducing device is suitably used as an optical information recording/reproducing device or a magnetic information recording/reproducing device.

[Conventional technology and its problems]

Conventionally, various types of recording media such as card-shaped, disc-shaped, tape-shaped, etc. are known as recording media used for recording information using a light beam and reproducing the recorded information using the light beam. ing. Among them, optical information recording media formed in the form of cards (hereinafter referred to as "optical cards")
) is expected to be in great demand as a recording medium that is easy to manufacture, has good portability, and has good accessibility.

In an optical card, the information tracks are formed in a straight line, and a large number of such information tracks are arranged in parallel in a predetermined area on the card surface. Therefore, in an information recording/reproducing device using an optical card as a recording medium, the light beam spot is continuously moved relatively in the direction of the information track on the surface of the optical card, and at this time information is recorded or reproduced. After moving a predetermined distance, the light beam spot is moved by a predetermined distance on the surface of the optical card in a direction transverse to the direction of the information track, and at this time, no information is recorded or reproduced; Next, the information track is continuously moved relative to the direction of the information track, and at this time information is recorded or reproduced, and in the same manner, the relative movement in the direction of the information track and the relative movement in the direction across the direction are performed. are alternately repeated a desired number of times.

As an information recording and reproducing device that performs the above operations, an optical card is held on a mounting table (hereinafter referred to as a "shuttle"),
One possible method is to move the shuttle back and forth in the direction of the information track, and move the head section for forming a light beam spot on the information track of the cough optical card in a direction across the information track.

Therefore, optical cards are generally carried by humans, and when recording and reproducing, it is necessary to insert the optical card into a predetermined holding position of the shuttle of the above-mentioned device, and then to take it out from the predetermined holding position. .

Incidentally, in recent years, there has been a demand for an increase in the speed of information recording and reproducing, so in the information recording and reproducing apparatus of the above type, it is necessary for the shuttle to reciprocate and reverse at high speed. Therefore, if the weight of the shuttle is large, it becomes difficult to increase the speed, and in order to increase the speed, a high-power driving source is required.

However, no device has been proposed in the past that takes into account both the suppression of such an increase in the weight of the shuttle and the positioning when feeding the optical card as described above.

[Means for solving problems]

According to the present invention, in order to solve the problems of the prior art as described above, an information recording medium is held on a mounting table, and the mounting table is reciprocated with respect to a recording and/or reproducing head. In an information recording and reproducing apparatus that performs recording and/or reproduction, means is provided for pressing the information recording medium against at least one of the medium positioning reference surfaces of the mounting table when the information recording medium is fed into the mounting table. There is provided an information recording and reproducing apparatus characterized in that the pressing means is attached to a member other than the mounting table.

〔Example〕

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic perspective view showing an embodiment of the information recording/reproducing apparatus of the present invention. Note that this embodiment is applied to an optical information recording/reproducing device.

In FIG. 1, 2 is a shuttle, and the shuttle is formed with a flat portion 4 on which an optical card is placed. The optical card is fed into and taken out from the mounting section 4 in the Y direction. The shuttle 2 is formed with spring members 6 and 8 for pressing the optical card downward in the Z direction when the optical card is being inserted or removed and when the optical card is placed in a predetermined position. Furthermore, the shuttle 2 has a Y when feeding the optical card.
A stopper 14 is provided for directional positioning. On one side of the shuttle 2 there are two protrusions 16.1.
8 is formed, and each protrusion has a light shielding plate 20.
．． 22 is fixed. A pin 26 extending in the X direction is fixed to the protrusion 16. A coaxial through hole in the Y direction is formed in the protrusion 16.18, and a bearing 28.30 is mounted here. Two guide rollers 32 and 34 are attached to the other side of the shuttle 2, and each roller is arranged in parallel at appropriate intervals in the Z direction, and can freely rotate around an axis in the X direction. can do.

In FIG. 1, guide members 36 and 38 are each made of a cylindrical body extending in the Y direction, and both ends thereof are supported by support members 40, 42 and 44, 46, respectively. All of the support members are fixed to a frame (not shown). One guide member 36 is a bearing 28.30 of a projection 16.18 formed on the shuttle.
and is slidably fitted. The other guide member 38 is located at a level between the two guide rollers 32, 34 attached to the shuttle 2.

Then, the guide rollers sandwich the guide member 38 and
It is relatively movable in the direction. Note that the connection between the guide member 36 and the bearings 28 and 30 and the connection between the guide member 38 and the guide rollers 32 and 34 are performed by the guide shaft 3.
6.38, the shuttle 2 has a minimum amount of play to ensure smooth reciprocation in the Y direction.

In FIG. 1, 48 is a servo motor, which is supported by a support member 50. As shown in FIG.

A drive rotation shaft of the motor 48 extends in the X direction, and a pulley 52 is attached to the shaft. Incidentally, a tacho generator 54 is attached to the motor 48 for detecting its rotation speed. On the other hand, 56 is a pulley, which is held at the same height as the pulley 56 by a support member 58.
It is mounted so that it can rotate around the direction. A belt 60 is wound between the two pulleys 52 and 56, and a portion of the upper running portion of the belt is fixed to the lower surface of the shuttle 2. Note that the support member 5
0.58 are both fixed to a frame (not shown).

In FIG. 1, 62, 64, and 66 are photocouplers, and when the shuttle 2 moves in the Y direction, the light shielding plate 20.22 attached to the protrusion 16.18 of the shuttle reaches the detection position. This is to detect that.

In FIG. 1, 68 is a key-shaped lever, and the lever is supported at its bent portion by the support member 40 so as to be rotatable around an axis in the X direction. The lever 6
The horizontal portion of 8 extends approximately in the Y direction, and an inclined surface 70 is formed on the lower surface side of the distal end thereof, and a recessed portion 72 is formed on the slightly bent side. The recess has a shape that approximately corresponds to the upper surface of the bottle 26 fixed to the protrusion 16 of the shuttle 2, and is located at approximately the same height as the pin. A vertical portion of the lever 68 extends substantially in the Z direction, and one end of an extension spring 74 is connected to a substantially intermediate position thereof. The other end of the spring is connected to a frame (not shown). Further, 76 is a stopper for stopping the rotation of the lever 68 by the spring 74, and the stopper is fixed to the support member 40. Lever 6
A pin 78 extending in the X direction is fixed to the tip of the vertical portion of the pin 8, and one end of a connecting member 80 is connected to the tip of the pin so as to be rotatable around the X direction. The connecting member is located substantially horizontally, and the other end is connected to the operating portion of the solenoid 82. Thus, by activating the solenoid 82, the vertical portion of the lever 68 is pulled against the tensile force of the extension spring 74, and the lever 68 is thus rotated by an appropriate angle counterclockwise in the figure around the X direction. , its horizontal portion will move upwards.

In FIG. 1, reference numerals 84 and 86 indicate rollers, both of which are mounted on a frame (not shown) at the same height so as to be rotatable around an axis in the X direction. 8
8 is a drive motor, the drive rotation shaft of which extends in the X direction, and a pulley 90 is attached to the shaft. A belt 92 is wound between the boob and rollers 84 and 86. Reference numerals 94 and 96 denote presser rollers, and each of these rollers is mounted on a movable plate 98 so as to be rotatable around an axis in the X direction.
installed on the side of the The roller 94 is the same as the roller 8.
4, and roller 96 is located above roller 86. The movable plate 98 is movable in the Z direction along guide means (not shown), and one end of an extension spring 100, 102 is connected to each end of the movable plate 98.

The other end of the spring is connected below to a frame (not shown), so the rollers 94, 96 are constantly pulled downward. The direction in which the belt 92 runs horizontally between the rollers 84 and 86 is the Y direction, and the belt running portion is located at approximately the same height as the optical card placement section 4 of the shuttle 2.

In FIG. 1, reference numeral 103 denotes an optical card pressing means, which is attached to one end of the movable plate 98 in the Y direction. The pressing means 103 is made of a leaf spring, and is located at the height of the horizontally running portion of the belt 92, and protrudes to the Y-direction extension of the horizontally running portion.

In FIG. 1, numerals 104 and 106 are sensors for detecting when an optical card passes below, and these sensors are located above the horizontally running portion of the belt 92. In addition, 108 is an optical card insertion section, and the optical card is inserted into the Y
An opening 110 is formed for insertion in the direction. The opening is located in the card placement section 4 of the shuttle 2 in the X direction.
It is located at a position substantially corresponding to the above-mentioned belt 92 and at substantially the same height as the horizontally running portion of the belt 92, and penetrates in the Y direction. The above sensors 104, 106 and optical card insertion section 1
08 is attached to a frame (not shown).

Furthermore, in FIG. 1, reference numeral 112 denotes an optical head section, which is located above the optical head mounting section 4 of the shuttle 2 and can project a light beam 114 downward. The head portion 112 is attached to a frame (not shown) so as to be movable back and forth in the X direction by an actuator (not shown).

In addition, in FIG. 1, the optical card mounting section 4 of the shuttle 2 is
An optical card 120 is placed and held thereon, and the optical card 2 is in a recording and/or reproducing position. The optical card 120 has a rectangular shape with two sides in the X direction and two sides in the Y direction, and has an appropriate thickness in the Z direction. The optical card 1
A recording area 122 is provided on the surface of the recording medium 20, and a large number of information tracks 124 are formed in this area in parallel to the Y direction. The recording area 122 exists in a portion between the card holding members 6.8. The optical card 120 is held down on the placing part 4 by the card holding members 6 and 8, and is in contact with the wall surface below the card holding member 6 in the X direction, and also against the strapper 14. The ends in the Y direction are brought into contact with each other, and positioning is thereby achieved.

, In this embodiment, the above-mentioned rollers 86 and 96 of the loading section 4 of the shuttle 2 and the card pressing member 8 and the pair 1r, ]
The corner of the optical card 120 protrudes from the shuttle 2 in this part.

Next, the operation of the apparatus of this embodiment as described above will be explained.

First, the shuttle 2 has a pin 2 attached to its protrusion 16.
6 is in a position to engage a recess 72 formed in the horizontal portion of the lever 68. In this state, the light shielding plate 20 attached to the protrusion 16 of the shuttle 2 is at the detection position of the photocoupler 62. Furthermore, in this state, the card placement section 4 of the shuttle 2 and the notch section 13 of the card holding member 8
0, rollers 86 and 96 are located. Figure 2 shows the notch 130, roller 96, and optical card pressing means 1 at this time.
FIG. 3 is a schematic partial plan view showing the positional relationship with 03.

Next, a person inserts the optical card into the opening 110 of the card insertion section 108 in the direction of arrow A. When the tip of the inserted optical card reaches the detection position of the sensor 104 and detection is performed, the drive motor 88 is activated in response to a command from the control unit, and the boot IJ90 rotates in the direction of arrow B, and the pulley and roller 84 A belt 92 wound around .86 runs. The horizontal running portion of the belt runs in the direction of arrow A,
Along with this, the rollers 94 and 96 also rotate. The optical card is further inserted in the direction of arrow A, and its tip touches the roller 8.
4 and 94, the optical card is held between the horizontally running portion of the belt 92 and the roller 94, and is guided by a guide means (not shown) and sent in the direction of arrow A. The optical card moves in the direction of arrow A, and its tip passes i1!1 between the rollers 86 and 96, and then advances onto the optical card unit 4 of the shuttle 2, which is at the same height. At this time, the optical card is held down on the mounting section 4 by the card holding member 6.8, but the driving force of the motor 88 and the spring 100°10
The optical card feeding force based on the tensile force of the members 6 and 8 is
Based on the pressing force (which is greater than the frictional force), the optical card advances further and finally its tip collides with the stopper 14 attached to the shuttle 2.
When advancing upward, the optical card is pressed against the pressing means 103
One end edge in the X direction is pressed and the opposite end edge is pressed against the lower wall surface of the card holding member 6 of the shuttle 2. Thus, when the leading edge of the optical card collides with the stopper 14, x, y, z Positioning in all directions has been completed. When the optical card collides with the stopper 14 and at the same time the rear end of the optical card reaches the detection position of the sensor 106 and detection is performed, the rotation of the drive motor 88 is stopped by a command from the control section, and the solenoid 82 is activated. The lever 68 is rotated counterclockwise in the figure to release the pin 26 of the shuttle 2 from the recess 72 of the lever, and then the servo motor 48 is driven and the belt 60 runs. Thus, the shuttle 2 fixed to the belt moves in the direction of arrow A. The operation of the solenoid 82 is stopped after the shuttle 2 starts moving. Note that when the shuttle 2 starts moving, a portion of the rear end of the optical card is held between the rollers 86 and 96 via the belt 92, but the optical card has already been pressed onto the mounting portion 4 of the shuttle 2. As it is being pushed by member 6.8, this frictional force causes the rear end of the optical card to rotate or run the rollers 84.86, 94.96, pulley 90 and belt 92, thus causing the optical card to move around the rollers 86 and 96. It moves in the direction of arrow A due to the frictional force caused by being held between the two. Alternatively, it may be possible to reduce the frictional force by moving the movable plate 98 upward at the start of this movement and releasing the pressure on the optical card by the pulley 96.

When the shuttle 2 starts moving, the tacho generator 54
The output of the motor 50 is detected, and the rotation speed of the motor 50 is controlled to a predetermined value according to a command from the control section. In this way, the shuttle 2 is moved in the direction of arrow A at a constant speed. When the light-shielding plate 22 attached to the protrusion 18 of the shuttle 2 reaches the detection position of the photocoupler 66 and detection is performed, the rotation speed of the motor 48 is lowered by a command from the control unit, and the moving speed of the shuttle 2 is reduced. , it finally stops.

Simultaneously with this stop, the motor 48 starts to rotate in reverse according to a command from the control section, and the rotation speed is gradually increased, and thus the shuttle 2
is accelerated in the direction of arrow A', which is opposite to the direction of arrow A. During movement in this direction, as in the case of movement in the direction of arrow A, the rotational speed of the motor 48 is controlled to a predetermined value by a command from the control section based on the detection of the output of the tacho generator 54. Then, the light shielding plate 2
By the time the shuttle 2 reaches the detection position of the photocoupler 66, it has reached a constant moving speed that is the same as when moving in the direction of the arrow A, and the shuttle 2 thereafter moves at this constant speed. A light shielding plate 20 attached to the protrusion 16 of the shuttle 2
When the light-shielding plate 22 reaches the detection position of the photocoupler 64 and detection is performed, the movement of the shuttle 2 in the direction of the arrow A' is decelerated, stopped, and Acceleration is performed in the direction of arrow A, and by the time the light shielding plate 20 reaches the detection position of the photocoupler 64, it moves in the direction of arrow A at a constant speed similar to the book described above.

Thereafter, the shuttle 2 similarly performs reciprocating motion in the Y direction.

During the above-mentioned reciprocating movement, the optical head section 112 emits a light beam 114, thereby recording information in the recording area 122 of the optical card 120 or reproducing information recorded in the recording area. will be carried out. During this recording/reproduction, the optical head section 112 moves a predetermined distance in the X direction (that is, the distance between the information tracks 124 in the X direction, or an integral multiple thereof) at or before or after the reversal of the movement of the shuttle 2 in the Y direction. The light beam 114 thus forms a spot on the desired information track 124 of the optical card 120 and is sequentially scanned.

After the recording/reproducing operation is completed, the motor 48 is decelerated after the light shielding plate 20 reaches the detection position of the photocoupler 64, and the motor stops exactly when the light shielding plate 20 reaches the detection position of the photocoupler 62. Being forced and controlled.

Therefore, the shuttle 2 moves in the direction of the arrow A', and the pin 26 attached to its projection 1.6 moves to the lever 68.
The lever is rotated counterclockwise in the figure against the tensile force of the spring 74, until the pin 26 finally reaches a position corresponding to the recess 72 of the lever 68. The tension force of the spring 74 engages the recess 72 . In this state, the shuttle 2 and the roller 96 have a positional relationship as shown in FIG.
They are held together via the belt 92. on the other hand,
When the light shielding plate 20 reaches the detection position of the photocoupler 62 and detection is performed, the motor 88 is rotated in the direction of the arrow B' opposite to the direction of the arrow B by a command from the control section, thus causing the belt 92 to run horizontally. The section runs in the direction of arrow A'. Due to this driving force, the optical card held between the rollers 86 and 96 is moved in the direction of arrow A' against the frictional force caused by the pressing force of the pressing member 6.8 from above the mounting portion 4 of the shuttle 2. be drawn out. Then, the optical card moves in the direction of arrow A' on the belt 92 while being pressed by rollers 96°94, and is finally ejected through the opening 110 of the insertion section 108. Pull it out in the direction of. When the sensor 104 detects the completion of passage of the optical card, the motor 88 is stopped by a command from the control section.

According to this embodiment, the optical card feeding/drawing means mainly constituted by 88 to 102 automatically feeds the optical card 120 onto the shuttle 2 and takes out the optical card from the shuttle under certain conditions. In particular, the optical card can always be accurately fed into a predetermined holding position on the shuttle, and the optical card will not be damaged during feeding or withdrawal.

FIG. 3 is a schematic partial perspective view showing a second embodiment of the information recording/reproducing apparatus of the present invention, and FIG. 4 is a schematic partial plan view thereof. Like the first embodiment, this embodiment is also applied to an optical information recording/reproducing device. are given the same reference numerals.

In addition, FIGS. 3 and 4 show the second embodiment in the first embodiment.
Shows the same condition as the figure.

In this embodiment, the optical card feeding/removing means and the optical card pressing means are different from those in the first embodiment.

1 In Figures 3 and 4, 86'
1 is a roller fixed to a rotating shaft in the X direction of a drive motor (not shown) attached to a frame (not shown). Also, 9
6' is a presser roller, and a movable plate 98' is rotatable around an axis inclined at an angle in the X-1Y plane from the X direction.
It is attached to the side of one end of the Roller 9G' is located above roller 86'. The movable plate 98
The other end of the roller 96' is rotatable around an axis 99' parallel to the axis of rotation of the roller 96', and the axis is attached to a frame (not shown). One end of an extension spring 102' is connected to approximately the center of the movable plate 98'. The other end of the spring is connected to a frame (not shown) at the bottom, so that the movable plate 98' is biased clockwise around the shaft 99' in the clockwise direction in FIG. is being stretched. The height of the contact position between the rollers 86' and 96' is approximately the same as the height of the optical card mounting section 4 of the shuttle 2.

The optical card loading/unloading means and the optical card pressing means are configured as described above. That is, when a person inserts an optical card from the optical card insertion section in the direction of arrow A, and the leading edge of the card reaches between rollers 86' and 96', the driving roller 86' rotates in the direction of arrow B. Based on this, the optical card is held between the rollers 86' and 96', moves in the direction of arrow A, and is fed onto the mounting section 4 of the shuttle 2. At the time of this feeding, as shown in FIG.
travels in an oblique direction that is offset by a certain angle from the Y direction at the contact point with the optical card, so the optical card receives a force in the X direction and is pressed against the wall below the card holding member 6 of the shuttle 2. In this way, the same positioning as in the first embodiment is performed. On the other hand, card removal is performed by rotating roller 86' in the direction of arrow B'.

In this embodiment, sensors corresponding to the sensors 104 and 106 in the first embodiment can be placed at appropriate positions to perform the same control as in the first embodiment.

In this embodiment, the same effect can be realized even if the roller 86' is a rotatable roller, the roller 96' is fixed to a drive motor, and the roller 96' is on the driving side.

FIG. 5 is a schematic partial sectional view showing a third embodiment of the information recording/reproducing apparatus of the present invention. This embodiment differs from the second embodiment in the optical card loading/unloading means and the optical card pressing means.

In FIG. 5, 140 is a frame, 86", 9
6" are rollers that are rotatably attached to the frame around an axis in the X direction. One roller 8
6'' is rotated by a drive motor (not shown), and its outer peripheral surface is tapered, and the roller is made of an elastic body and is deformable.

In this embodiment, when the optical card is held between the rollers 86'' and 96'' and the card is fed in by the rotation of the driving roller 86'', the optical card is placed close to the frame 140 on the outer periphery of the roller. This portion elastically deforms and recovers, so that the circumferential speed of this portion becomes substantially higher than the circumferential speed of the card contacting portion of the outer peripheral portion of the roller located relatively far from the frame 140, thus achieving the second embodiment. A pressing force in the X direction is applied to the optical card 120 in the same manner as in the example.

In this embodiment, the same effect can be realized by forming and arranging the rollers 86'' and 96'' as shown in FIG.

According to the above embodiment, since the optical card pressing means is attached to the optical card loading/unloading means, when the shuttle 2 is in the position for optical card loading/unloading, the pressing means is automatically pressed. takes appropriate placement. In addition, in the second and third embodiments, a part of the member constituting the optical card feeding/removing means also functions as the optical card pressing means, so that an increase in the number of parts constituting the apparatus can be suppressed.

Furthermore, although the above embodiments are described in which information is recorded and reproduced on a recording medium using a light beam, the present invention also includes a case where information is recorded and reproduced on a recording medium using other methods. For example, it also includes those that magnetically record and/or reproduce information on a recording medium.

〔Effect of the invention〕

According to the present invention as described above, since the recording medium is automatically positioned when being fed onto the mounting table, the recording medium can be placed at an accurate position.

Furthermore, according to the present invention, since the recording medium pushing means is mounted outside the 'R' direct mounting table, the weight of the mounting table is not increased, and therefore the mounting table can be moved with a relatively small driving force. It is possible to move at high speed and perform high-speed recording and reproduction.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the device of the present invention, and FIG. 2 is a partial plan view of the device of the present invention. FIG. 3 is a partial perspective view of the apparatus of the present invention, and FIG. 4 is a partial plan view thereof. 5 and 6 are partial sectional views of the device of the present invention. 2: Shuttle, 4: Placement section, 36.38 Ni guide member,
48.88: motor, 60, 92: heald, 68 lever, 82: solenoid, 103: card pressing means,
108: Car F insertion part, 112: Optical head part, 120:
Hikari Card, 130: Notch Department Agent Patent Attorney Jo Taira Yamashita Figure 3 Figure 4 A

Claims (3)

[Claims] (1) In an information recording and reproducing apparatus that records and/or reproduces information by holding the information recording medium on a mounting table and reciprocating the mounting table relative to a recording and/or reproducing head, the information recording medium is Means is provided for pressing the medium against at least one of the medium positioning reference surfaces of the mounting table when the medium is fed into the mounting table, and the pressing means is attached to a member other than the mounting table. An information recording/reproducing device characterized by: (2) The information recording and reproducing apparatus according to claim 1, wherein the pressing means is attached to means for feeding the information recording medium to the mounting table. (3) The pressing means has a set of a drive roller constituting the information recording medium feeding means and a free roller that is brought into pressure contact with the roller directly or indirectly, and the information is passed between the set of rollers. A recording medium is fed, and at least one of the set of rollers has a shape, structure, and/or arrangement such that it generates a pressing force during operation.
An information recording and reproducing device according to claim 2.