JPH056597Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a disk mounting device for a disk player that reads and reproduces information recorded on a disk as a digital signal using an optical pickup.

``Prior Art'' Conventionally, there has been a technique in which a tray having a disk mounting portion is provided so that it can be taken in and out, and the disk is supported by a turntable and a chuck plate, and the disk is taken in and taken out and played.

"Problems to be Solved by the Invention" In the above-mentioned prior art, a disk holder that is moved in and out of the disk mounting section is provided on the tray so as to be able to move up and down, but the up and down movement of the disk holder is performed by an elevating member. Therefore, this is one of the reasons that prevent disc players from becoming thinner.

``Means for Solving the Problems'' However, in the present invention, the central part of the tray is recessed to form a disk placement section, and a pair of left and right disks that support the disk in the disk placement section in a vertically movable manner are provided. A holder is provided on the tray, and the disk holder is rotatably supported on the tray, and the disk holder is supported by a leaf spring so as to protrude from the upper surface of the disk placement portion so as to be retractable to the lower surface of the disk placement portion. In the structure, a lowering operation member is formed protruding from the disk holder to the lower surface side of the tray, and a drive arm is provided to horizontally rotate between the left and right lowering operation members during playback, and the drive arm is formed at both ends by horizontal rotation of the drive arm. The tapered portion presses the left and right lowering operation members outward to lower the disk holder.

``Function'' Therefore, according to the present invention, the disk holder can be moved up and down with a single operating member such as a drive arm that rotates horizontally, and one of the causes that prevent disk players from becoming thinner can be eliminated. This makes it easy to make the disc player thinner.

"Embodiments" Hereinafter, embodiments of the present invention will be described in detail based on the drawings. Fig. 1 is an overall plan view, Fig. 2 is a perspective view, Fig. 3 is a front view, and Fig. 4 is a sectional side view. The output shaft 3 of the motor 2 is projected substantially perpendicularly to the upper surface of the chassis 1, and a turntable 5 for rotating the disk 4 is fixed to the upper end of the output shaft 3.

Further, a columnar rail 6 is horizontally mounted on the chassis 1 on the rear side of the motor 2, and an optical pickup 7 for reading recorded signals of the disk 4 supported and rotated by the turntable 5 is movably attached to the rail 6. A linear motor 8 for moving the pick-up 7 is provided, and the pick-up 7 is configured to move toward and away from the axis of the turntable 5 linearly in the radial direction.

Further, a chuck arm 9 is provided for fixing the disc 4 to the turntable 5, the middle of the arm 9 is rotatably supported on the upper surface of the chassis 1 via a support shaft 10, and a spring 11 for holding the disc erect is connected to the arm 9. At the same time, a chuck plate 12 having a permanent magnet is loosely and rotatably supported on one end of the arm 9, and the turntable 5 and the chuck plate 1 are connected to each other.
A wiring board 13 is fixed on the upper surface of the chassis 1 behind the chuck arm 9.

Furthermore, a tray 14 made of synthetic resin is provided on which the disk 4 is placed and taken in and out, and a tray support frame 15 made of synthetic resin is fixed to the front and upper surface of the chassis 1, and the tray 14 is taken in and out through the frame 15. The eject arm 16 is provided with an eject arm 16 that freely supports the tray 14 and makes contact with the storage end of the tray 14.The arm 16 is rotatably attached to the upper surface of the chassis 1 via a support shaft 17, and the arm 16 is rotated to release the tray. An eject spring 18 for ejecting the tray 14 is connected to the arm 16, and a stopper 19 is formed on the chassis 1 for abutting against the arm 16 and regulating the ejecting amount of the tray 14. The tray 14 is pushed out through the tray 16.

Further, as shown in FIGS. 5 to 9, the center of the upper surface of the rectangular tray 14 is recessed to form a circular hole-shaped disk mounting portion 20.
A disk attachment/detachment recess 21 shaped like a blind hole in plan view and communicating with the tray 14 is provided at a corner of the rectangular upper surface of the tray 14, and the disk 4 is placed on the mounting portion 20 by inserting a finger into the recess 21 from the open side of the upper surface. In addition to letting you enter and leave the
It is equipped with a disk holder 22 that supports the disk 4 of the disk mounting section 20 in a vertically movable manner, and left and right disk holders 22 are arranged on both sides of the disk mounting section 20. 23, one end of which is rotatably fitted into the bearing portion 24 of the tray 14, and one end of which is fixed to the back surface of the tray 14 via a screw 25. The other end of the leaf spring 26 is attached to the holder 22.
The holder 22 is pressed against the other end of the support shaft 23 from the back side, and the holder 22 is rotatably supported upward by a leaf spring 26.
The disk receiving portions 27 of the holder 22 are made to protrude from openings 28 on both sides of the disk mounting portion 20, and the disk 4 is lifted and supported by the disk receiving portions 27. A slope is formed in a mountain shape, and both ends of the disk receiving portion 27 are brought into contact with the lower surface of the outer periphery of the disk 4 to receive the disk 4, and a boss 29 for downward movement operation is integrally formed on the lower surface of the disk holder 22 by molding. However, the disc holder 22 is configured to be moved in and out within the vertical width of the disc mounting portion 20 of the tray 14 by pressing the boss 29.

Further, FIG. 10 is a bottom view of the chassis 1 with the tray 14 attached, in which a lock arm 31 is rotatably supported on the bottom side of the chassis 1 via a support shaft 30, and a return spring 32 is connected to the lock arm 31. A stopper 33 is integrally formed with the lock arm 31 to be brought into contact with the inner front surface of the chassis 1, and the spring 3
The stopper 33 is brought into contact with the chassis 1 by two forces, and the boss 34, which is a locking member provided on the back surface of the tray 14, is removably engaged with the lock arm 31, and the tray 14 is prevented from leaving against the spring 18. At the same time, the middle part of the switch arm 35 is rotatably supported on the lock arm 31 by a support shaft 36, and when the boss 34 engages with the lock arm 31, the boss 34 comes into contact with one end of the switch arm 35, and the switch arm 35 The other end is brought into contact with the disk mounting switch 37, and when the tray 14 is inserted, the tray 14 is fixed and the switch 37 is turned on, as shown in FIG.
Eject holes 38 and 39 are provided in the front surface of the chassis 1 and the tray support frame 15, respectively.
8, 39 and insert the operating rod-shaped body 40 into the stopper 3.
3, rotate the lock arm 31 against the spring 32, detach the lock arm 31 from the boss 34, and release the eject arm 16 by the force of the spring 32.
The lock arm 31 is disposed so as to be unlockable from the outside so that the tray 14 can be ejected via the lock arm 31.

It also includes a drive arm 42 that is displaced by a disk mounting motor 41, and allows the chassis 1 to slide and rotate freely via a sliding guide pin 43 and a long hole 44, and a sliding and rotational guide pin 45 and a long hole 46. The drive arm 42 is provided on the lower surface side, and
A modified rack gear 49 having a sliding gear portion 47 and a rotating gear portion 48 is integrally molded on the drive arm 42.

Further, the motor 41 is attached to the chassis 1 via a bracket 50, and the rack gear 49 is interlocked and connected to the motor 41 via a worm gear 51, a worm wheel 52, and a reduction gear 53, and the worm wheel 52 and reduction gear 53 are integrally formed. The support shaft 54 is
One end is supported by a bracket 50, and a guide hole 55 similar to the rack gear 49 is formed in the drive arm 42, and the support shaft 5 is inserted into the guide hole 55.
4, the other end of which is slidably engaged, and the motor 41 is used to rotate the reduction gear 53 in the forward and reverse directions. The drive arm 42 is configured to rotate around a motion guide pin 43.

Furthermore, a stop switch 56 returns the drive arm 42 to a position for operating the tray 14 in and out;
and an eject switch 58 operated by an eject button 57 on the front surface of the frame 15, and when the eject switch 58 is turned on, the motor 41 is
is reversed, and the protrusion 59 of the drive arm 42 contacts the stop switch 56 and turns on, thereby stopping the motor 41 and stopping the motor 41.
Left and right tapered parts 60, 60 are integrally formed at both ends of the disk holder 22, and when the drive arm 42 is slid in the left and right direction as shown in FIG.
9, the tapered portion 60 is close to the drive arm 4.
2 is rotated, the tapered portion 60 contacts the boss 29 from the inside and presses the boss 29, and the disc holder 22 is rotated against the leaf spring 26.
The disk 4 supported by the holder 22 is lowered into the disk mounting section 20, and the disk 4 is mounted on the turntable 5. The drive arm 42 moves the disk holder 22 onto the disk mounting section 20. It is configured to allow entry and exit.

It also includes a lifting arm 61 that controls the lifting and lowering of the chuck plate 12. The lifting arm 61 is slidably and rotatably supported by the chassis 1 via a guide pin 62 and a long hole 63.
One end of the chuck arm 9 is rotatably connected to one end of the drive arm 42 via a support shaft 64, and as shown in FIGS. An overlapping upward tongue piece 66 is integrally formed on the other end of the elevating arm 61, and the elevating arm 61 is superimposed on the chuck arm 9 to support the chuck plate 12 upwardly, while the rotating movement of the drive arm 42 causes the elevating arm to move upwardly. By sliding the lifting arm 61 and separating the lifting arm 61 from the chuck arm 9, the chuck plate 12 is lowered by the force of the spring 11. It consists of

Furthermore, a lock release lever 67 is provided for releasing the insertion and fixing operation of the tray 14 by the lock plate 31 and the boss 32, and a bearing pedestal 68 is integrally formed on the drive arm 42.
The lever 67 is rotatably supported via the lever 9, the lever 67 is attached to the drive arm 42, and a return spring 70 is connected to the lever 67.
When the lever 67 is pushed back by the boss 34 as shown in the figure and the drive arm 42 slides and rotates as shown in FIGS. 11 and 12, the spring 7
0, the lever 67 is returned and supported, and the drive arm 4
10, the lock arm 31 is rotated by the lever 67, and the lock arm 31 is detached from the boss 34.

In addition, a square column-shaped stopper 71 is provided on the bearing stand 68.
is formed integrally with the drive arm 42 and positioned opposite the boss 72 of the tray 14 when the drive arm 42 slides as shown in FIG. The tray 14 is supported in the insertion position by contact, and when the drive arm 42 rotates, the twelfth
As shown in the figure, the step 73 of the arm 42 is brought close to the lock arm 31, and the lock arm 31 is brought into contact with the step 73 to prevent the arm 31 from coming off the boss 34.

Further, as shown in FIGS. 14 and 15, left and right guide rails 74, 75 are provided at both ends of the tray 14.
are integrally formed, guide grooves 76 and 77 for slidingly guiding the guide rails 74 and 75 are formed on the tray support frame 15 on the machine side, and a plurality of pressers that are brought into sliding contact with the upper surfaces of the guide rails 74 and 75. Piece 78
... are integrally formed on the frame 15, and a plurality of guide bodies 79... that are brought into sliding contact with the inner edges of the guide rails 74, 75 are integrally formed on the frame 15. While the guide rails 74 and 75 are slidably supported by restricting their displacement, a reinforcing iron plate 81 is baked and fixed to the back surface of the rail extending portion 80 of the tray 14.

Further, a retaining screw 82 is fixed to the inside of the tip of the right guide rail 75 of the tray 14, and the screw 82
is brought into contact with the guide body 79 to regulate the withdrawal amount of the tray 14 and prevent the tray 14 from separating from the frame body 15. A guide protrusion serving as a guide member is provided at the tip of the left guide rail 74 of the tray 14. A portion 83 is integrally formed, the guide protrusion 83 is slidably fitted into the guide groove 76, and the guide rail 74 is loosely fitted and supported in the guide groove 76 via the guide protrusion 83. .

In addition, as shown in FIG. 16, the guide convex portion 8
3, a guide roller 85 as a guide member is provided at the tip of the left guide rail 74 via a support shaft 84, and the roller 85 is slidably fitted into the guide groove 76, so that the guide rail 74 is inserted into the guide groove 76. It can also be supported loosely.

The present embodiment is constructed as described above, and the disk 4 is placed on the disk mounting portion 20 with the tray 14 removed as shown in FIG. 2, and the tray 14 is pushed in and inserted as shown in FIG. By letting
As the eject arm 16 comes into pressure contact with the tip of the rail extending portion 80, the boss 34 engages with the lock arm 31 as shown in FIG. 10, and the disk mounting switch 37 is turned on via the switch arm 35.
The disk mounting motor 41 is rotated to slide the drive arm 42 through the sliding gear section 47 of the rack gear 49 as shown in FIG. 11, and through the rotating gear section 48 of the rack gear 49 as shown in FIG. The drive arm 42 is rotated, the disk holders 22 on both sides of the tray 14 are rotated in conjunction with the arm 42, the disk 4 supported by the holder 22 is lowered, and the disk 4 is placed on the turntable 5. Further, due to the rotation of the drive arm 42, the upward tongue piece 66 of the lifting arm 61 is separated from the downward tongue piece 65 of the chuck arm 9, and the chuck arm 9 is rotated by the spring 11, and the chuck plate 12 is lowered. The disk 4 is held between the turntable 5 and the turntable 5, and the playback operation of the disk 4 is performed.

In addition, by operating the eject button 57, the eject switch 58 is turned on, and the motor 41 is reversely rotated, thereby causing the drive arm 42 to rotate in the opposite direction. At the same time, the chuck plate 12 is raised, and the disk holder 22 is rotated by the leaf spring 26, and the holder 2
2 lifts and supports the disk 4.

Then, due to the sliding return operation of the drive arm 42,
The lock release lever 67 contacts the lock arm 31 and releases the lock arm 31 from the boss 34,
The tray 14 is pushed out by the force of the spring 18 of the eject arm 16, and the disk 4 is replaced.

Further, when the power is turned off under the conditions shown in FIGS. 1 and 10, the lock arm can be locked by inserting the rod-shaped body 40 into the eject holes 38 and 39 and pushing the stopper 33 of the lock arm 31 as shown in FIG. 31 from the boss 34, and the tray 14 is moved out by the force of the spring 18.

"Effects of the Invention" As is clear from the above embodiments, the present invention has a configuration in which the central portion of the tray 14 is recessed to form the disk placement section 20, and the disk placement section 20 supports the disk 4 in a vertically movable manner. A pair of left and right disk holders 22 are provided on the tray 14, and the disk holders 22 are rotatably supported on the tray 14,
In the structure in which the disk holder 22 is supported by a plate spring 26 so as to protrude from the upper surface of the disk holder 20 so as to be freely retractable toward the lower surface of the disk holder 20, a lowering operation member 29 is moved from the disk holder 22 to the lower surface of the tray 14. A drive arm 42 is provided which protrudes and rotates horizontally between the left and right lowering operation members 29 during playback, and the horizontal rotation of the drive arm 42 causes the left and right lowering operation members 29 to be rotated by tapered portions 60 formed at both ends thereof. Since the disc holder 22 is configured to be lowered by pressing outward, the disc holder 22 can be moved up and down with a single operating member that rotates horizontally, and the disc player can be made thinner. This has the remarkable effect of eliminating one of the causes of interference and making it easier to make the disc player thinner.

[Brief explanation of drawings]

Fig. 1 is an overall plan view showing one embodiment of the present invention, Fig. 2 is a perspective view, Fig. 3 is a front view, Fig. 4 is a sectional side view, Fig. 5 is a plan view of the tray, and Fig. 6 The figure is a bottom view of the same, FIG. 7 is a cross-sectional side view of the same, FIG. 8 is a cross-sectional rear view of the same, FIG. 9 is a partial view of the same, FIG. 10 is a partial view of the back of the chassis, and Figures 11 to 13 are front 14 is an explanatory plan view of the tray support section, FIG. 15 is a partial view of the same, and FIG. 16 is a partial view showing a modification of the previous figure. 4...Disk, 14...Tray, 20...Disk mounting section, 22...Disk holder, 26...
. . . Leaf spring, 29 . . . Lowering operation member, 42 . . . Drive arm.

Claims (1)

[Scope of utility model registration request] A central portion of the tray 14 is recessed to form a disk placement portion 20, and a pair of left and right disk holders 22 that support the disk 4 of the disk placement portion 20 in a vertically movable manner are provided on the tray 14, and the disk holder 22 is rotatably supported on the tray 14, and the disk holder 22 is supported by a plate spring 26 so as to protrude from the upper surface of the disk mounting section 20 so as to be freely retractable to the lower surface of the disk mounting section 20. A lowering operation member 29 is formed protruding from the disk holder 22 to the lower surface side of the tray 14, and a drive arm 42 is provided which horizontally rotates between the left and right lowering operation members 29 during playback. Tapered portion 6 to be formed
1. A disk mounting device for a disk player, characterized in that the disk holder 22 is lowered by pressing the left and right lowering operation members 29 outward at zero.