JP2000113555A - Front loading disk player - Google Patents

Abstract

PROBLEM TO BE SOLVED: To pull in either a bare disk or a cartridge storing disk into the housing and to enable playing by providing a transporting means, which transports a bare disk inserted from the port, with a means for transporting a bare disk and with a means for holding the bare disk on this transporting means. SOLUTION: With a disk fed and pushed in, a driving motor for engaging with a rack member 70' operates simultaneously with the rotation of a locking plate, actuating a transporting mechanism and with the rack member 70, 70' synchronized and moved to the rear. Then, the centering plate and the holding arm both move to the rear by a pull-plate, with the center position of the disk reaching that of a turntable. Then, a clamper lowers from above by an elevation mechanism that engages with both rack members, with the disk held vertically by the turntable and the clamper, performing required clamping.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a front loading disc player.

[0002]

2. Description of the Related Art As is well known, CDs and DVDs are used as bare disks, while DVD-R / Ws, which are rewritable DVDs, are used in a form housed in a cartridge having a performance window. Has become. Therefore, a front loading disc player compatible with both a bare disc and a cartridge storage disc is desired.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a front-loading disc player that can perform a playing operation, that is, an information reproducing operation, by pulling both a bare disk and a cartridge storage disk into a housing. The purpose is to:

[0004]

According to the present invention, there is provided a front loading disk player comprising: a disk-shaped bare disk provided on a front portion of the disk; and a cartridge disk in which a recording disk is housed. Transport means for transporting the bare disk inserted from the insertion slot, wherein the transport means transports the bare disk, and the bare disk provided on the transport means and transports the bare disk on the transport means And holding means for holding.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A front loading player as an embodiment of the present invention will be described below with reference to the accompanying drawings. As shown in FIG. 1, a front panel 2 of a player housing 1 has a slot 4 having a width and a height capable of inserting and ejecting a cartridge disk 3 such as a DVD-R / W disk stored in a cartridge.
Are provided extending in the left-right direction when viewed from the front of the player. Here, hereinafter, the arrow X direction is the right direction, and the arrow Y
It is assumed that the direction is rearward and the arrow Z direction is upward. The cartridge disk 3 has a shutter 3b that opens and closes left and right to expose the internal disk.

In the housing 1, a cover 5 is provided near the slot 4, and the slot 4 is openably and closably closed from the inside of the front panel 2. The lid 5 is provided with a lock mechanism described below so as to open only when the cartridge disk 3 is inserted and ejected.
On the other hand, since the insertion and ejection of the bare disk 6 having a diameter of 12 cm and the bare disk 7 having a diameter of 8 cm are performed through the slits 8 provided in the lid 5, the lid 5 does not need to be opened.

As shown in FIGS. 2 to 5, the lid member 5a constituting the lid assembly 5 has a pair of rotary shaft rods 5a1 and 5a1 'below the left and right ends thereof. 5a1 '
Is a columnar projection extending outward in parallel with the X direction. The lid member 5a is rotatably pivotally attached to a pair of stays 2a, 2a 'extending rearward from near the lower portion of the slot 4 on the back surface of the front panel portion 2 via the rotary shaft bars 5a1, 5a1'. I have. Further, torsion springs 12, 12 'are wound around the rotating shaft bars 5a1, 5a1', and bias the lid member 5a so that the lid member 5a closes the slot 4. Therefore, the lid member 5a
Unless is pressed from the outside, the peripheral edge of the lid member 5a contacts the peripheral edge of the opening of the slot 4 to close the slot 4. Further, the lid member 5a is in the vicinity of the rotating shaft rods 5a1 and 5a1 ', and a pair of open / close arms extending rearward.
5a2 and 5a2 '. The opening / closing arms 5a2 and 5a2 'are pressed down during a cartridge ejecting operation to be described later, and the lid member 5a pivots rearward about the rotating shaft rods 5a1 and 5a1' to open the slot 4. Further, both left and right ends of the lid member 5a protrude rearward to form a pair of open / close stopper surfaces 5a3, 5a3 '. The lid member 5a is provided at its center with a slit 8 extending left and right, through which the bare disks 6 and 7 can be inserted. A horizontal holding member 11 for holding the inserted bare disks 6 and 7 from above and below to maintain a horizontal position.
Is provided at the center of the back surface of the lid member 5a, sandwiches the bare disks 6 and 7 inserted and ejected through the slit 8 from above and below, and maintains the horizontal state during the insertion and ejection of the bare disk. . The through holes 5a4 and 5a4 'provided near both ends of the lid member 5a respectively have unlocking tacks 10 from the back surface.
Is inserted slightly through the cover member 5a. The unlocking rivet 10 is a substantially rectangular parallelepiped elongated in the front-rear direction, and the bottom surface 10b of the rear protruding portion 10a is a plane inclined rearward, that is, in the middle direction between the Y direction and the Z direction. The unlocking rivet 10 is urged forward by a leaf spring (not shown), and the step portion of the rear protruding portion 10a abuts on the lower part of the peripheral edge of the opening of the through holes 5a4 and 5a4 '. With this configuration, the lock release tack 10 is pressed rearward by an external force from the disk storage cartridge or the like, and the lock of the lid member 5a is released. This will be described later in detail.

[0008] A pair of lock arm assemblies 9, 9 '
A rotating shaft in the X-axis direction is provided through stays 13 and 13 '(see FIG. 6) which are located behind the lid 5 and are fixed to the bottom surface of the player housing 1 and extend upward (see FIG. 6) and fixed chassis 20 and 20' to be described later. Is attached to the player housing 1 so as to be swingable around. A lock arm assembly 9 located to the left as viewed from the front includes a substantially U-shaped lock arm 9a extending forward and a stopper arm 9b extending downward from an end of one leg of the lock arm 9a. And rotating shaft rods 9c1 and 9c2 extending outward from the sides in a direction parallel to the X axis. The rotating shaft bars 9c1 and 9c2 are cylindrical projections extending outward from the left and right sides of the lock arm member 9 in a direction parallel to the X axis, and are formed integrally with the lock arm member 9. A torsion spring 14 is wound around the rotating shaft 9c1 to apply a biasing force to the lock arm assembly 9 in a direction in which the lock arm 9a swings upward, while the lid member 5a closes the slot 4. As far as possible, the stopper arm 9b is in contact with the stopper portion 13a of the stay 13.
Therefore, the lock arm 9a is maintained at the position where it extends horizontally. Part of the U-shaped bottom of the lock arm 9a
An inclined portion 9a1 having an inclined surface inclined downward toward the lid assembly 5 is formed on an upper surface thereof, and a concave portion 9a2 opened downward is formed in an area adjacent to the inclined portion 9a1. When the lid member 5a closes the slot 4, the inclined portion 9a1
Abuts on the bottom 10b of the rear protruding portion 10a of the unlocking rivet 10 slidably from below, while the leading edge of the lock arm 9a abuts on the open / close stopper surface 5a3 of the lid member 5a, and furthermore, the concave portion 9a2 Contact from above 5a2. (here,
It is preferable that the upper surfaces of the opening / closing arms 5a2 and 5a2 'have smooth curved surfaces. ) Also, the lock arm assembly 9
The upper surface of the coupling portion with the stopper arm 9b has a sliding inclined surface 9d which is inclined upward from a rear end to a position beyond a straight line connecting the rotating shaft bars 9c1 and 9c2. Accordingly, when a cartridge (not shown) exerts a force for pressing the lock arm assembly 9 forward while slidingly contacting the sliding inclined surface 9d during a cartridge discharging operation described later,
The lock arm 9 rotates downward using the rotating shaft rods 9c1 and 9c2 as rotating shafts.

The lock arm assembly 9 'located on the right side when viewed from the front has a mirror image relationship with the lock arm assembly 9 located on the left side, and a description thereof will be omitted. As shown in FIGS. 6 to 11, the lock arm assemblies 9, 9 '
A disc transport mechanism for transporting the disc supplied via the slot 4 to the playing position is disposed behind the disc. The disc transport mechanism is fixed to the bottom of the player housing 1 and extends in a direction perpendicular to the bottom and the front panel 2.
Contains.

A fixed chassis located on the left as viewed from the front
20 is an inverted L-shaped cam hole formed to be separated from front to back
It has 20a and 20b. These inverted L-shaped cam holes 20a and 20b
Is an inverted L-shaped through-hole having the same shape and comprising a horizontal portion extending horizontally rearward in the Y direction and a vertical portion continuously extending downward at a right angle. The fixed chassis 20 ′ located on the right side has the same shape as the fixed chassis 20 on the left side, and has inverted L-shaped cam holes 20 a ′ and 20 b ′ formed to be spaced apart in the front-rear direction. Note that a reinforcing rib 20d is provided at the center of the chassis 20.

The carrier member 30 is formed by bending a sheet metal, and has a substantially U-shaped cross section opened downward as a whole.
The top plate 30a extending between the fixed chassis 20, 20 'has a cutout 30a1 opening rearward. Pins 31, 32 and 31 ', 32' extending outward in parallel with the X-axis are respectively provided on a pair of left and right hanging portions 30b and 30b 'extending inside and parallel to the fixed chassis 20, 20'. Are planted in front of and behind and below each other.

The pair of rack members 70 and 70 'are located outside the fixed chassis 20 and 20', respectively.
It extends parallel to 0 '. The rack member 70 located on the left side when viewed from the front has inclined cam holes 70a and 70b formed to be separated from each other in the forward and backward directions. This inclined cam hole 70
Reference numerals a and 70b denote through holes formed by a horizontal portion that extends horizontally rearward in the Y direction and an inclined portion that extends upward and inclines rearward continuously from the horizontal portion. The rack member 70 'located on the right side has the same shape as the rack member 70, and has inclined cam holes 70a' and 70b 'that are separated in the front-rear direction. Rack gears 70c and 70c 'are formed above the rack members 70 and 70', respectively. The shaft 71 extends left and right to the fixed chassis
The shaft 71 is rotatably supported at 20, 20 '.
Pinion gears 72 and 72 'are fixed to both left and right end portions of the lens, respectively. The pinion gears 72 and 72 'are rack gears 70c and 70
The driving means is connected to the pinion gear 72 'via a power transmission means such as a belt (not shown) from the motor 1c. With this configuration, when the motor 1c operates to rotate the pinion gear 72 ', the rack member 7
0 and 70 'move back and forth in synchronization.

The carrier pins 31, 32, 31 ', 32' planted in the left and right hanging portions 30b, 30b 'of the carrier member 30 are inverted L-shaped cam holes 20a, 20b, 20a' of the fixed chassis 20, 20 '. , 20b 'to extend outwardly, and slidably engage with the inclined cam holes 70a, 70b, 70a', 70b 'of the rack members 70, 70', respectively. In the initial state, the carrier pins 31, 32, 31 ', 32'
The inverted L-shaped cam holes 20a, 20b, 20a ', 2 of the fixed chassis 20, 20'
0b 'is located slightly behind the front end and the rack member 7
0, 70 'are located at the rear ends of the inclined cam holes 70a, 70b, 70a', 70b '.

A disk support mechanism for supporting a disk to be conveyed is provided inside the carrier member 30. The disc support mechanism includes a pair of plate guides 33, 33 ',
The plate guides 33 and 33 ′ have a rectangular parallelepiped block shape extending in the Y direction,
b, fixed inside 30b '. Right plate guide 33 '
Are first slits extending parallel to each other and extending vertically in the Y direction on the side opposite to the surface in contact with the carrier member 30.
33a 'and a second slit 33b'. First slit 33a '
The second slit 33b 'is a groove provided with an opening on the inside starting from the position 33a1', 33b1 'slightly behind the front end of the plate guide 33 (see FIG. 9). The same applies to the left plate guide 33.

As shown in detail in FIG. 8, a flat plate-like arm plate 40 extends between a pair of first slits 33a, 33a 'provided in plate guides 33, 33' and slides back and forth. It is movably engaged. The projections 40a, 40a 'projecting from the rear end portions of the arm plate 40 are respectively provided with the projections 30c, 30c' projecting from the front end portions of the carrier member 30, respectively.
4, 34 ', the arm plate 40 is urged forward. Therefore, the front ends of the arm plates 40 are in contact with the front ends 33a1 and 33a1 'of the first slits 33a and 33a' of the plate guides 33 and 33 ', respectively. Cuts 40b and 40b 'extending rearward are formed near the front left and right ends of the arm plate 40. Further, an arc-shaped hole that forms a part of an arc toward the center line starting from the inside of the cuts 40b, 40b '
40c and 40c 'are formed. In addition, lock plate 4
1 is rotatably supported on the arm plate 40 by a rotating shaft 41a positioned between the cut 40b 'and the starting point of the arc-shaped hole 40c', and is clockwise viewed from above by bias means and stopper means (not shown). The rotation bias force is applied, and the rotation bias force extends in the left-right direction. The left hook-shaped end 41b of the lock plate 41 is located on the arc-shaped hole 40c ', and the right end 41c is located on the cut 40b'.
The lock plate 41 is engaged with a switch (not shown) for detecting release of engagement with a hold arm 43b described later. Further, the arm plate 40 has a notch 40d that opens forward between the arc-shaped holes 40c and 40c '. Four
There is a tongue 40f extending downward near 0d.

The hold arm assembly 43 includes a substantially L-shaped first arm member 43a and a second arm member 43b which extend rearward and bend continuously inward, and the first and second arm members 43a, 43b. Are pivotally connected to each other at their rear ends.
The first arm member 43a extends rearward and continuously bends to the right, and a branch arm portion 43a2 that branches at a bent portion slightly backward from the main arm portion 43a1. Consists of The main arm portion 43a1 has a step inclined forward and upward, and a disc guide piece 44 extends downward and is rotatably pivoted on the lower surface of one front end. Arm reset pin 45 and guide pin 46 held by applying a biasing force upward by a leaf spring
Are planted so as to extend upward between the front end and the bent portion in this order. A connection pin 47 is implanted at the rear end of the main arm 43a1 so as to extend upward. At the rear end of the branch arm 43a2 and at the front thereof, load pins 48 and 48 'are implanted downward, respectively. The first arm member 43a is rotatably supported on the lower surface of the arm plate 40 so as to be rotatable around a rotation shaft 43a3 near the bent portion. A disc guide piece 44 'extends downward and is rotatably supported on the lower surface of the front end of the second arm member 43b. The second arm member 43b has a guide pin 46 ', which extends upward and is implanted at an intermediate point between the front end portion and the bent portion. The rear end of the second arm member 43b has an elongated hole 43b1, and the connection pin 4 of the first arm member 43a is formed.
7 is slidably engaged. A spring 49 is provided between a projection 43b2 near the rear end of the second arm member 43b and a projection 40e1 of a tongue 40e extending rearward from the arm plate 40 with a slight downward inclination. . This second arm member 43b
Is rotatably supported on the lower surface of the arm plate 40 so as to be rotatable about the rotation shaft 43b3 near the bent portion. The two guide pins 46, 46 'of the first and second arm members 43a, 43b are slidably engaged with the arc-shaped holes 40c, 40c' of the arm plate 40, respectively. In addition, the guide pin 46 '
It protrudes from the upper surface of the arm plate 40 via c ′ and engages with the hook-shaped end 41b of the lock plate 41. With this configuration, the first and second arm members 43a and 43b are
Simultaneously and in opposite directions about the fulcrum 43a3 and 43b3, the disk guide pieces 44 and 44 'at the front end are moved right and left so as to approach or separate from each other, and the disk 6 or 7 is pinched or released from the side. You can do it. Also, fixed chassis 2
Front bridge plate erected between front ends of 0, 20 '
An arm reset plate 22 having a groove 22a for guiding an arm reset pin 45 of the hold arm assembly 43 is fixedly provided on the lower surface of the arm 21.

As shown in detail in FIG. 9, a centering plate 50 having a flat flat shape as a whole is provided with a plate guide.
It extends between a pair of second slits 33b, 33b 'provided in 33, 33' and is slidable back and forth with respect to these. An arm 50a extending rearward is provided on the left rear side of the centering plate 50, and a spring 35 is provided between a projection at the tip thereof and a projection 33c provided on the plate guide 33. Therefore, the centering plate 50 is urged forward, and the front ends 33b1 and 33b of the second slits 33b, 33b '.
Contact 1 '. The centering plate 50 has stopper pins 51 and 51 'implanted upward at both front ends thereof. A centering load arm 50b extending rearward is rotatably supported on the left rear side, and a centering load pin 52 is planted downward at the end thereof. The arm 50b is maintained at a position extending rearward because a clockwise biasing force is applied to the arm 50b1 as viewed from above and a stopper (not shown) abuts against the rear end of the centering plate 50. I have. Further, a guide ring 53 composed of three members is fixed to the lower surface of the centering plate 50.

A long hole 54 extending in the Y direction is provided on the right side of the centering plate 50. A disc push plate 55 and a pull arm guide plate 56, which are formed as a set by rivets (not shown) penetrating the long holes 54, are connected to each other with the centering plate 50 sandwiched therebetween from below and above. 56 is slidable with respect to the centering plate 50 in the front-rear direction, that is, in the Y direction.

As described above, the stopper pins 51 and 51 '
It extends upward from both front ends of the centering plate 50 and is freely engageable with the cuts 40b and 40b 'of the arm plate 40. Therefore, the centering plate 50
The arm plate 40 is also moved rearward by moving the arm plate 40 rearward. In addition, the stopper pin 51 '
extends beyond the arm plate 40 through b 'and cuts
One end 41c of the lock plate 41 pivotally attached to the arm plate 40 above 40b 'is in contact with the front from the front.

The guide ring 53 is composed of three members, and the large-diameter guide rings 53a and 53c are arc-shaped bodies having a groove having a curvature that comes into contact with the end of the disk 6 having a diameter of 12 cm. Numeral 53b is an arc-shaped body having a groove with a curvature that comes into contact with the end of the disk 7 having a diameter of 8 cm. These are provided on the lower surface of the centering plate 50 from the left side with a large-diameter guide ring 53a, a small-diameter guide ring 53b, and a large-diameter guide ring.
They are fixed apart from each other in the order of 53c. Guide rings 53a, 53b, 53c have tongues 53a1, 53b projecting rearward.
1 and 53c1, and a spacer (not shown) for forming a gap is provided between the tongue-like portions 53a1, 53b1, 53c1 and the centering plate 50, and is fixed to be separated from each other. . One set of the disc push plate 55 and the pull arm guide plate 56 are slidably engaged with the elongated holes 54 of the centering plate 50, and the lower surface of the disc push plate 55 has a pair of Disc guide flanges 55a and 55a 'are fixedly provided. A spring 57 is provided between the rear projection 55b of the disc push plate 55 and the rear projection 50c of the centering plate 50. Therefore, the disc push plate 55 is housed in the gap between the centering plate 50 and the guide ring 53b. Also, a pair of disc guide flanges
55a and 55a 'are located between the guide rings 53a and 53b and between the guide rings 53b and 53c, respectively. The pull arm guide plate 56 has an arm portion having a front end bent leftward, and an elongated hole 56a is formed in this arm portion.

On the other hand, a substantially L-shaped pull arm plate 58 composed of two long and short arms is pivotally supported at the bent portion 58a to the left of the centering plate 50 and is attached to the end of a long arm 58b extending to the right. A pin 59 is implanted upward and slidably engages with the elongated hole 56a of the pull arm guide plate 56. Also, the short arm of the pull arm plate 58
A large-diameter disk cam lock plate 60 and a small-diameter disk cam lock plate 61 extending leftward are fixed to 58c and fixed to the front and rear, respectively, and both are leaf springs. Hemispherical projections 62 and 63 are provided upward at the tip portions of the cam lock plates 60 and 61, respectively. Further, the centering plate 50 has a cutout 50d that opens forward.

A pair of cartridge guide members 65, 65 '
Is a gutter-like shape having a substantially U-shaped cross section and having an opening upward, and extends parallel to the inside of the hanging portions 30b and 30b ′ of the carrier member 30 and below the plate guides 33 and 33 ′, respectively. It is fixed to. Cartridge guide member 65, 65 '
The evacuation grooves 65a, 65a 'opening upwardly of the holding arm assembly 43 which moves rearward together with the arm plate 50 when the arm plate 50 moves rearward pass through the disc guide pieces 44, 44' of the hold arm assembly 43. belongs to. In addition, it is desirable that the retreat grooves 65a and 65a 'exist inside the inner plane of the plate guides 33 and 33'. Further, inside the cartridge guide members 65 and 65 ', a pair of cartridge guide grooves 65b and 65b' for guiding the cartridge disk 3 are formed. The cartridge guide grooves 65b and 65b '
5, the length in the Y direction is shorter than 65 ′, and further behind the rear end of the cartridge guide groove 65b ′, a concave portion 3a ′ of the cartridge disk 3 inserted along the cartridge guide groove 65b ′ (FIG. 1). ) Is provided with a cartridge lock 66 for engaging and fixing the same.

The cartridge lock 66 is on the upper surface of the bottom of the cartridge guide member 65 ', and is rotatably supported around a rotation shaft 66a. A spring 67 is provided between the projection 66b1 at one end 66b of the cartridge lock 66 and the projection 50e at the rear of the centering plate 50. When the cartridge disk 3 is inserted and the centering plate 50 moves rearward, the spring 67 The urging causes the one end 66b of the cartridge lock 66 to protrude inside the cartridge guide groove 65b ', thereby securely holding the cartridge disk 3. Further, a switch 68 for detecting that the cartridge disk 3 is held is engaged with the cartridge lock 66.

As shown in detail in FIG. 10, a shutter opening mechanism for opening the shutter 3b of the cartridge to play the cartridge disk 3 and exposing the disk inside the cartridge 3 is provided at the rear end portions of the fixed chassis 20, 20 '. It is provided on a longitudinal rear bridge plate 23 erected between each other.
The arm supporting member 80 is rotatably supported on the lower surface of the rear bridge plate 23 around the rotating shaft 80a1 of the pair of pins and bosses 80a and slidably in the axial direction. Rotary axis 80
A spring 81 is bridged between a projection on the arm support member 80 extending upward from near the front of a1 and a projection 23a extending downward from the plate 23. The end of the protrusion 23a and the side of the arm support member 80 are in contact with each other, and the arm support member 80 is maintained at a position where it is extended forward by receiving a clockwise bias force when viewed from above. Shutter arm 82
Is pivotally supported by a stay 80b extending upward in front of the arm support member 80 so as to be swingable about a rotation shaft 82a near the rear end of the shutter opening / closing arm 82. A torsion spring 83 is wound around the rotating shaft 82a to apply a rotational bias force to rotate the front end of the shutter opening / closing arm 82 upward, and the shutter opening / closing arm 82 is moved forward by a stopper (not shown). Is maintained in a position where it extends. At the front end of the shutter opening / closing arm 82, an opening / closing lever 84 for engaging and opening the shutter 3b of the cartridge disk 3 is fixed so as to extend downward. Are fixed so as to extend downward.

As shown in detail in FIG. 11, the disc positioning mechanism is a mechanism for positioning the disc on the playing means 1a for recording and reproduction provided on the bottom surface of the player housing 1. Is provided on the left rear side of. An escape plate 90 extends upward from the bottom surface of the player housing 1.
The shaft 91 is rotatably supported about a rotation shaft 90a. Behind the rotation shaft 90a, a spring 92 is interposed between the escape plate 90 and the bottom surface of the player housing 1 and urges the escape plate 90 upward, while being downwardly directed to one front end of the escape plate 90. The implanted stopper pin 93 comes into contact with the player housing 1. Therefore, the escape plate 90 extends horizontally with the bottom surface of the player housing 1. Further, an escape guide 94 for moving the escape plate 90 downward is fixed to the escape plate 90 via a release bracket 95. Further, the guide pins 96a and 96b are spaced upward and downward from the drive plate 97, and have two elongated holes 97 formed apart from the drive plate 97.
a and 97b are slidably engaged with each other back and forth. One end of the drive plate 97 forms a lever 97c extending laterally, and the lever 97c is connected to a window of the fixed chassis 20.
Extending outward through 20c, the end 7 of the rack member 70
Can be in contact with 0d. Load plate 98 slidably supported on drive plate 97 and urged by a spring
Has an upwardly extending pin 99 at its forward end. The load arm member 100 has a spring 101 attached to the escape plate 90.
It is connected elastically in the up-down direction via a, and is further connected rotatably about the pin 101 as an axis. A pin 99 is slidably engaged with the elongated hole 100a of the load arm member 100. The pull plate 102 is fixed at a position apart from the pin 101, which is the rotation axis of the load arm member 100. The pull plate 102 has a long hole 102a extending leftward and rightward in front, and a long hole 102b behind it. With this configuration, the lever 97
When you move c backward, pull plate 102
Is rotated rearward about the rotation axis. This will be described later in detail.

Next, the operation of the front loading disc player having the above configuration will be described. First, the loading of a disk when the disk to be played is a bare disk 6 having a diameter of 12 cm will be described in detail. 12 and 14
Indicates the time order of loading the disc. Figure
As shown in FIG. 12, when the disc is not inserted, the lid member 5a closes the slot 4. Even if the operator presses a part of the lid member 5a with a finger, the edge portions of the inclined portions 9a1 and 9a1 'of the lock arm members 9 and 9' located on the left and right are opened and closed stopper surfaces 5a3 and 5a3 of the lid member 5a. , The lid 5 does not open.

As shown in FIG. 13, before the disk 6 is inserted, the carrier pins 31, 32, 31 ', 32' implanted in the carrier member 30 are inverted L of the fixed chassis 20, 20 '. The cam holes 20a, 20b, 20a ', 20b' are located slightly behind the front ends of the cam holes 20a, 20b, 20a ', 20b', and the inclined cam holes 70a, 70
b, 70a ', 70b' at the rear end. As shown in FIG. 14, the disk 6 is provided with a slit 8 provided in the lid member 5a.
When it is inserted into the slit 8, it is held horizontally by being held by the horizontal holding member 11 disposed behind the slit 8. Therefore, when the operator further pushes the disk 6, the disk 6 surely comes into contact with the groove of the guide ring 53 while being kept horizontal.

As shown in FIG. 15, when the disc 6 is further pushed in, the guide ring 53 is pushed backward, whereby the centering plate 50 is moved backward. Pin implanted in front of centering plate 50
51 ′ is engaged with the end 41 c of the lock plate 41 while the end 41
Move c backward. Accordingly, the lock plate 41 rotates about the rotation shaft 41a, and the engagement between the hook-shaped end 41b and the guide pin 46 'on the hold arm 43 is released. Here, since the spring 49 applies a force to bring the fronts of the hold arms 43a and 43b closer to each other, the hold arms 43a and 43b apply the guide pins 46 and 46 'to the arm plate 40.
While rotating in the arc-shaped holes 40c and 40c ′ of the above-described manner, the rotation is performed in opposite directions around the rotation shafts 43a3 and 43b3. Therefore, the disc guide pieces 44, 44 'arranged at the front ends of the hold arms 43a, 43b abut against the side of the disc 6, and the grooves of the large-diameter guide rings 53a, 53c of the guide ring 53 are inserted into the side of the disc 6. Is inserted. On the other hand, at the same time as the rotation of the lock plate 41, a switch (not shown) engaged with the lock plate 41 is turned on, and the drive motor 1c engaged with the rack member 70 'operates to operate the transport mechanism.

As shown in FIGS. 13 and 16, when the disk 6 is loaded, the lock plate 41 is rotated, a switch (not shown) is turned on, and the drive motor 1c is rotated, as described above. Then, the rack members 70 and 70 'are synchronously moved backward, and the carrier pins 31, 32, 31' and 32 'change their relative positions with respect to the inclined cam holes 70a, 70b, 70a' and 70b '. Instead, it moves backward while sliding along the horizontal portions of the inverted L-shaped cam holes 20a, 20b, 20a ', 20b'. Reverse L-shaped cam holes 20a, 20
b, 20a ', 20b' at the rear end of the horizontal part, carrier pins 31, 3
When 2, 31 ', 32' reach, carrier pins 31, 32, 31 ', 3
2 'descends along the vertical portions of the inverted L-shaped cam holes 20a, 20b, 20a', 20b 'while sliding along the inclined portions of the inclined cam holes 70a, 70b, 70a', 70b '. Therefore, the carrier member 30 also descends. Centering load pin 5 of centering load arm 50b swingably provided on centering plate 50
2 is slidably engaged with the elongated hole 102a of the pull plate 102, while the arm load pin 48 behind the hold arm 43 is slidably engaged with the elongated hole 102b of the pull plate 102. When the rack members 70 and 70 ′ move further rearward, the lever 97 c of the drive plate 97 penetrating the window 20 c of the fixed chassis 20 and protruding outward, and the end 7
0d abuts and moves lever 97c backward. Then, the drive plate 97 and the load plate 98 urged by the spring are also moved rearward. Since the pin 99 causes the load arm member 100 to rotate through the elongated hole 100a, the pull plate 102 rotates rearward about the pin 101 as a rotation axis. Therefore, the centering plate 50 is
The hold arm 43 is moved rearward, and the center position of the disk 6 reaches the center position of the turntable 1a. Here, the clamper 1b is lowered from above by an elevating mechanism (not shown) engaged with the rack members 70, 70 ', and the turntable 1a and the clamper 1b hold the disk 6 from above and below to achieve clamping.

As the rack members 70, 70 'are moved further rearward, the pins 31, 32, 31', 32 'are moved into the inverted L-shaped cam holes 20.
a, 20b, 20a ', and 20b', which reach the lower ends of the vertical portions and stop, and only the rack members 70, 70 'are inclined cam holes 70a, 70b, 70a', 70a.
It moves while sliding with the pins 31, 32, 31 ', 32' along the horizontal part of b '. Therefore, the pull plate 102 rotates further rearward, and moves the arm plate 40 and the centering plate 50 further rearward. Therefore, the disc 6 is disengaged from the disc guide pieces 44, 44 'and the guide rings 35a, 35c. This makes it possible to play.

When the disc 6 is ejected after the performance,
In response to the operation of the eject switch 1d by the operator, the drive motor 1c is rotated in the reverse direction, the rack members 70 and 70 'move forward, the lever 97c of the drive plate 97 returns to the original position, and the pull plate 102 Return to position. Therefore,
The first and second arm members 43a and 43b forming the hold arm assembly 43 rotate so as to be close to each other to hold the side of the disk 6 again by the disk guide pieces 44 and 44 ', and the centering plate 50 is also fixed. Then, the large-diameter guide rings 35a and 35c and the end of the disk 6 are engaged again, and the disk is held. As is clear from FIG. 13, the pins 31, 32, 31 ', and 32' are inclined cam holes.
70a, 70b, 70a ', 70b' inclined portions and inverted L-shaped cam holes 20a, 2
It moves upward while sliding along the vertical portions of 0b, 20a ', and 20b', and the clamper is released by the above-described lifting mechanism (not shown). Further, while reaching the rear end of the inclined cam holes 70a, 70b, 70a ', 70b', the inverted L-shaped cam holes 20a, 20b, 20
Go forward while sliding along the horizontal part of a ', 20b. Eventually, the front end of the disk 6 is inserted into the horizontal holding member 11 and the arm reset pin of the hold arm assembly 43 is
45 is inserted into the groove 22a of the arm reset plate 22 fixed to the lower surface of the front bridge plate 21, and the arm reset pin 45 moves leftward along this groove, so that the hold arm assembly 43 holds the disc. Cancel. Then, the guide pin 46 'of the second arm member 43b is engaged with the lock plate 41, and the second arm member 43b is locked. On the other hand, the left part of the first arm member 43a is the pull arm plate 5
Since the pull arm plate 58 is engaged with the projection 62 on the cam lock plate 60 fixed to 8, the pull arm plate 58 rotates clockwise around the rotation shaft 58a when viewed from above. Then, the pin 59 at the tip of the pull arm plate 58 is
Arm guide plate 5
6 and the disc push plate 55 fixed to it
Is pushed forward from the storage position between the centering plate 50 and the guide ring 53b. A pair of disc guide flanges fixed to the disc push plate 55
55a and 55a 'come into contact with the end of the disc 6 and push it forward, exposing the end of the disc 6 to the front of the front panel 2 through the slit 8.

When the rack members 70 and 70 'further move forward, the arm reset pin 45 abuts on the front end of the groove 22a of the arm reset plate 22, and the advance of the hold arm assembly 43 stops. When the rack members 70 and 70 'further move forward, the projection 62 of the cam lock plate 60, which is a leaf spring, is disengaged from the end of the first arm member 43a, and the engagement between the projection 62 and the first arm member 43a is released. The pull arm plate 58, the disc push plate 55, and the arm guide plate 56 return to their original positions all at once by the restoring force of the spring 57. At this position, a switch (not shown) engaged with the rack member 70 'is turned on, and the drive motor 1c is rotated in the reverse direction to reach the position where the disk 6 is inserted.
When 0 'is returned, the switch is turned off and the operation is completed.

Next, the loading of a disk when the disk to be played is a bare disk 7 having a diameter of 8 cm will be described in detail. FIGS. 17, 18, and 19 show the loading time order. As shown in FIG. 17, when the operator inserts the bare disk 7 into the slit 8 provided in the lid 5, the disk guide ring passes through the horizontal holding member 11 as in the case of loading the 12 cm disk 6. Abuts 53 grooves. When the disc 7 is pressed by the operator, the centering plate 50 is
Is moved backward and the hold arm assembly 43
Are unlocked, and the first and second arm members 43a, 43a
3b rotates around the rotation shafts 43a3 and 43b3 in opposite directions. The disc guide pieces 44, 44 'disposed at the front ends of the first and second arm members 43a, 43b abut against the sides of the disc 7 outside the center line of the disc 7 outside. Further, the side of the disk 7 is connected to the large diameter guide ring 53a or 5d.
While sliding in the groove 3c, the side of the disk 7 is fitted into the small-diameter guide ring 53b located at the rear, and the disk 7 is clamped.

Lock plate as in the case of disk 6
In response to the rotation of 41, a switch (not shown) is turned on, the transport mechanism operates, and the reverse L-shaped cam hole 20a slides along the inclined portions of the inclined cam holes 70a, 70b, 70a ', 70b'. , 20b, 20
The carrier member 30 descends along the vertical portions of a 'and 20b'. However, as shown in FIG.
Since the diameter of the disk 7 is smaller than in the case of the first case, the distance between the front ends of the hold arm assembly 43 is narrow, and therefore the first
The branch arm portion 43a2 of the arm member 43a is located on the left side of the disk 6, and the arm load pin 48 'abuts on the centering load arm 50b thereunder from the right side, and the arm load pin 48' moves upward around the rotation axis 50a. The centering load arm 50b is moved counterclockwise as viewed from above. Therefore, the centering load pin 52 and the arm load pin 48
Does not engage with the pull plate 102. That is, the centering plate 50 and the arm plate 40 are not pulled backward by the movement of the rack members 70, 70 ', the center of the disk 6 is positioned on the turntable 1a as it is, and the lowered clamper 1b and the turntable 1a Thus, the disk 7 is held from above and below. This allows performance.

Next, when the disc 7 is ejected after the performance, the drive motor 1c rotates in reverse according to the operation of the eject switch 2c by the operator, and the rack members 70 and 70 'move forward. Pins 31, 32, 31 ', 32' are inclined cam holes 70a, 7
0b, 70a ', 70b' inclined portions and inverted L-shaped cam holes 20a, 20b, 20
It moves upward while sliding along the vertical portions of a 'and 20b', and the clamper comes off. In addition, inclined cam holes 70a, 70b,
70a ', 70b' abuts on rear end and reverse L-shaped cam hole
It moves forward while sliding along the horizontal part of 20a, 20b, 20a ', 20b'. The arm reset pin 45 of the hold arm assembly 43 is inserted into the groove 22a of the arm reset plate 22 fixed to the lower surface of the front bridge plate 21, and the arm reset pin 45 moves leftward along this groove, so that the hold is performed. The arm assembly 43 releases the holding of the disk. Then, the guide pin 46 'of the second arm member 43b is engaged with the lock plate 41, and the second arm member 43b is locked.

As shown in FIG. 19, since the diameter of the disk 7 is smaller than that of the disk 6, the left side of the first arm member 43a engages with the projection 63 on the cam lock plate 61 fixed to the pull arm plate 58. I do. Therefore, pull arm plate
When the clock 58 rotates clockwise around the rotation shaft 58a when viewed from above, the pin 59 at the tip of the pull arm plate 58 is engaged with the elongated hole 56a of the arm guide plate 56. The disc push plate 55 fixed to this is pushed further forward than the disc 6 from the storage position between the centering plate 50 and the guide ring 53b. Disc push plate 55
A pair of disk guide flanges 55a, 55a '
Abuts against the end of the disk 7 and pushes it forward, exposing the end of the disk 7 to the front of the front panel 2 through the slit 8 by the same amount as the disk 6.

When the rack members 70 and 70 'further move forward, the arm reset pin 45 abuts on the front end of the groove 22a of the arm reset plate 22, and the advance of the hold arm assembly 43 stops. When the rack members 70 and 70 'further advance forward, the projection 63 of the cam lock plate 61, which is a leaf spring, is disengaged from the end of the first arm member 43a, and the engagement between the projection 63 and the first arm member 43a is disengaged, The pull arm plate 58, the disc push plate 55, and the arm guide plate 56 return to the original position all at once by the restoring force of the spring 57. At this position, a switch (not shown) that engages with the rack member 70 'is turned on, and when the drive motor 1c is reversed to return the rack members 70, 70' to the position where the disk 6 is inserted, the switch turns off. Complete the operation.

Next, loading of a disk when the disk to be played is the cartridge disk 3 will be described in detail. 25 to 27 show loading time order. As shown in FIG. 20 to FIG. 22 and FIG. 25, when the cartridge disk 3 is aligned with the slot 4 of the front panel 2 and is brought close to the slot 4, two locks protruding forward from the both ends of the cartridge disk 3 and the lid 5 are formed. The release tack 10 comes into contact and pushes it backward. When the unlocking rivet 10 is pushed rearward, the lock arm contacts the bottom 10b of the rear protruding portion 10a behind the unlocking rivet 10.
The inclined portion 9a1 of 9a is moved downward while sliding on the bottom portion 10b. Therefore, the edge portion of the inclined portion 9a1 is
The lid 5 is moved below the opening / closing stopper surface 5a3 to open and close. The same applies to the lock arm member 9 'located on the right side.

The lid member 5a is further pushed rearward by the cartridge disk 3 and rotates rearward. Lid member 5a
The horizontal holding member 11 is also retracted from the entrance path of the cartridge guide 3 together with the lid member 5a to avoid interference with the cartridge disk 3. The cartridge disk 3 pressed further rearward engages with the cartridge guide grooves 65b, 65b 'of the rear cartridge guide members 65, 65' via the slot 4. The front end of the cartridge disk 3 comes into contact with the front end of the guide ring 53 and the cartridge pushes a lock member (not shown), whereby the centering plate 50 is unlocked and the guide ring 53 is pressed rearward. The centering plate 50, which is integral with the guide ring 53, also has a plate guide 33, 33 '.
And moves rearward while sliding on the second slits 33b and 33b '. Further, the front end of the cartridge disk 3 contacts the tongue 40f of the arm plate 40, and the arm plate 40 also moves rearward.

As shown in FIG. 26, when the cartridge disk 3 is further pushed in, the centering plate 50 is further moved rearward while slidingly contacting the second slits 33b, 33b 'of the plate guides 33, 33' via the guide ring 53. Moving. At the same time, the disc guide pieces 44, 44 'in front of the hold arm 46 enter the evacuation grooves 65a, 65a' from the front openings of the disc guide members 65, 65 'and move rearward.

When the cartridge disk 3 is further pushed in, the cartridge disk 3 is inserted into the cartridge guide groove.
One end 66b of the cartridge lock 66a projecting to 65b, 65b '
And recesses 3a, 3a 'on the side of the cartridge disk 3.
To engage. The cartridge disk 3 is held by the cartridge guide members 65 and 65 '.
Further, a switch 68 that engages the cartridge lock 66a
Turns on and the transport mechanism operates.

As shown in FIG. 27, the cartridge guide member 6 is attached to the carrier member 30 by the transport mechanism as described above.
The cartridge disk 3 fixed via 5, 65 '
It is transported horizontally. Since the arm plate 40 is pressed by the cartridge disk 3 and located behind the carrier member 30, the movement of the carrier member 30 causes the tongue 40 e behind the arm plate 40 to move upward and downward at the rear end of the shutter opening / closing arm 82. The lift lever 85 slides on the tongue 40e by abutting on the tongue 85. Therefore, the lifting lever 85
Moves upward, and the opening / closing lever 84 at the front end moves downward. At this time, the opening 30a1 formed in the top plate 30a of the carrier member 30 is set forward, the opening 40d of the arm plate 40 and the opening 50d of the centering plate 50 are set rearward, and the opening / closing lever 84 moves downward between the cartridges, It engages with the recess of the disk 3 in front of the shutter 3b. When the cartridge disk 3 further moves rearward, the opening / closing arm 82 rotates together with the shutter 3b around the rotation axis 80a1 of the arm support member 80 in a counterclockwise direction as viewed from above, and opens it.

Although the carrier member 30 subsequently descends, the engagement with the shutter 3b is maintained because the opening / closing arm 82 is also rotatable about the rotation shaft 82a. Turntable
With the center of the cartridge disk 3 on 1a, the clamper 1b is lowered by an elevating mechanism (not shown), and the playing state is completed. At this time, the large-diameter disc guide ring 53a fixed to the centering plate 50 comes into contact with the escape guide 94 from above, moves it downward, and rotates the escape plate 90 via the release bracket 95 integrated with the escape guide 94. The shaft 90a is rotated downward. Therefore, it is possible to prevent components on the centering plate 50 from interfering with components on the escape plate 90.

As shown in FIGS. 23 and 24, after the performance or recording is completed, the drive motor 1c is rotated in reverse according to the operation of the eject switch 1d by the operator, and the rack members 70 and 7 are rotated.
0 'goes forward. The cartridge disk 3 is held from the position of the playing or recording means together with the cartridge guide members 65 and 65 ', and is automatically conveyed along the original path. When the cartridge disk 3 is going to pass over the lock arm member 9, the front end of the cartridge disk 3 abuts against the sliding inclined surface 9d of the lock arm member 9, and the lock arm member 9 is moved around the pivot shaft 9a1. Rotate clockwise as viewed in the X direction. Therefore, lock arm 9a1
The lower concave portion 9a2 moves the opening / closing lever 5a2 of the lid member 5a downward, and the lid 5 pivots rearward about the cylindrical rod 5a1 to open the slot 4.

When the cartridge disk 3 is inserted, a switch (not shown) is turned on at a position where the cartridge disk 3 is held on the cartridge guide members 65 and 65 'by the cartridge lock 66a, the drive motor 1c is stopped, and the carrier members 70 and 70' Stops. When the cartridge lock 66a releases the engagement with the cartridge disk 3, the centering plate 50 moves forward while slidingly contacting the second slits 33b, 33b 'of the plate guides 33, 33' by the restoring force of the spring 35. The guide ring 53 fixed to the centering plate 50 moves forward while contacting the cartridge disk 3. Since a part of the cartridge disk 3 protrudes from the slot 4, it can be pulled out by the operator.

[0046]

As described above, according to the front loading player of the slot-in type according to the present invention, regardless of whether a bare disc or a cartridge disc is inserted through the front panel, the disc is held. , And can be automatically transported to the playing means and played.

[Brief description of the drawings]

FIG. 1 is a perspective view of a front loading player according to the present invention.

FIG. 2 is a perspective view of the player of FIG. 1 without a housing.

FIG. 3 is a partially exploded perspective view of a lid provided at an insertion opening of a front panel of the player of FIG. 1;

FIG. 4 is a perspective view of a lock arm assembly that engages with the lid of FIG. 3;

FIG. 5 is a plan view of a main part in the vicinity of a lid along a horizontal plane including a line AA in FIG. 2;

FIG. 6 is an exploded perspective view of a transport mechanism of the player of FIG. 1;

FIG. 7 is a front view of a main part without the front panel of FIG. 2;

8 is a partially exploded perspective view of the vicinity of a hold assembly of the transport mechanism in FIG. 6;

FIG. 9 is a partially exploded perspective view of the vicinity of a centering plate of the transport mechanism of FIG. 6;

10 is a partially exploded perspective view of the vicinity of a shutter opening / closing arm of the transport mechanism in FIG. 6;

11 is a partially exploded perspective view of the vicinity of an escape plate of the transport mechanism of FIG. 6;

12 is a side view as viewed from a vertical plane including line BB of FIG. 5;

13 is a conceptual diagram of the transport mechanism of FIG.

FIG. 14B in a state where a bare disk is inserted;
It is the side view seen from the perpendicular plane containing the -B line.

FIG. 15A shows a state in which a bare disk is inserted.
It is a top view of the principal part along the horizontal plane containing the -A line.

16 is a plan view of a main part along a horizontal plane including a line AA in FIG. 2 in a state where the bare disk is positioned on the turntable.

FIG. 17A in FIG. 2 with a bare disk inserted;
It is a top view of the principal part along the horizontal plane containing the -A line.

18 is a plan view of a main part along a horizontal plane including a line AA in FIG. 2 in a state where the bare disk is positioned on the turntable.

FIG. 19A shows a state in which the bare disk is ejected.
It is a top view of the principal part along the horizontal plane containing the -A line.

20 is a side view of the cartridge disk in contact with the lid as viewed from a vertical plane including line BB in FIG. 5;

21 is a side view as seen from a vertical plane including a line BB in FIG. 5 in a state where a cartridge disk is inserted.

22 is a side view showing a state where a cartridge disk is further inserted than in FIG. 21 as viewed from a vertical plane including a line BB in FIG. 5;

23 is a side view seen from a vertical plane including a line BB of FIG. 5 in a state in which the cartridge comes into contact with a lock arm assembly for discharging a cartridge disk.

24 is a side view of a vertical plane including a line BB in FIG. 5 in a state where the cartridge disk is ejected from an insertion opening for discharging the cartridge disk.

25 is a plan view of a main part along a horizontal plane including a line AA in FIG. 2 in a state where a cartridge disk is inserted.

26 is a plan view of a main part along a horizontal plane including a line AA in FIG. 2 in a state where the cartridge disk is held by the guide assembly.

27 is a plan view of a main part along a horizontal plane including a line AA in FIG. 2 in a state where the cartridge disk is positioned on the turntable.

[Explanation of Signs of Main Parts]

 DESCRIPTION OF SYMBOLS 1 Player housing 2 Front panel part 3 Cartridge disk 4 Slot 5 Lid 6 12cm diameter bare disk 7 8cm diameter bare disk 8 Slit 20 Fixed chassis 35 Guide ring 40 Arm plate 41 Lock plate 43 Hold arm assembly 44 Disc guide piece 50 Centering plate 70 Rack members

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yasumitsu Suzuki 4-2610 Hanazono, Tokorozawa-shi, Saitama Prefecture Inside the Tokorozawa Plant (72) Inventor Koichi Yaeguchi 4-2610 Hanazono, Tokorozawa-shi, Saitama Pioneer Shares In the Tokorozawa Plant (72) Inventor Toru Kane 4-2610 Hanazono, Tokorozawa City, Saitama Prefecture Pioneer Corporation Tokorozawa Plant F-term (reference) 5D046 AA12 CA16 EA06 GA02 GA03 GA04

Claims (3)

[Claims] 1. An insertion slot provided on a front portion of a disk-shaped bare disk and a cartridge disk containing a recording disk therein, and a transport port for transporting the bare disk inserted from the insertion slot. Transport means, the transport means comprising: transport means for transporting the bare disk; and holding means provided on the transport means and holding the bare disk on the transport means. Disc player. 2. The holding means comprises a fixed member provided on the transfer means and an arm movable on the transfer means, and a large-diameter disk having a predetermined diameter and a small-diameter disk having a smaller diameter. 2. The disc player according to claim 1, wherein the disc player holds the disc together. 3. The disk player according to claim 1, wherein said transfer means retreats from said cartridge disk transport path when said cartridge disk inserted from said insertion slot is transported.