JPH10283711A - Disk recording and/or reproducing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To regulate the receiving position on a disk holding means during the transfer of disk and prevent drop of disk from the disk holding means to stably transfer the disk by holding a part of the upper surface of disk with the front edge of the disk holding means and disk regulating means. SOLUTION: A C-shaped regulating means 222 has a first supporting section 225 for supporting the front end edge of the surface of a disk tray 3 and circumference of an optical disk 2, a second supporting section 226 for supporting the front edge of rear surface of disk tray 3 and a third supporting section 227 for supporting the front edge of the disk tray 3. An interval between the first and second supporting sections 225, 226 is set thicker than the thickness of front edge of disk tray 3. The first supporting section 225 is set longer than the second supporting section 226 as the length up to the circumference edge of optical disk 2 on the tray from the front edge of disk tray 3 in order to prevent drop of disk 2 from the tray. The end portions of the first and second supporting means 225, 226 are tapered toward lower part of external side so that the display tray 3 can be entered easily to the regulating means 222.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk recording and / or reproducing apparatus for regulating the position of a disk held by disk holding means conveyed between a disk changing position and a recording / reproducing position.

[0002]

2. Description of the Related Art Conventionally, in a disk recording and / or reproducing apparatus, an optical disk, which is a recording medium, is held on a disk tray, and the disk tray is placed at a disk exchange position where an optical disk exchange operation is performed, and an optical disk exchange position. There is a disc recording and / or reproducing apparatus which moves over a recording / reproducing position where recording and / or reproduction is performed. In this type of disc recording and / or reproducing apparatus, when the disc tray is located outside the apparatus, the operation of exchanging the optical disc is performed. The disk tray holding the optical disk is pulled into the apparatus by the transport mechanism, and holds the optical disk at the recording / reproducing position. Then, the optical disk is lifted up from the disk tray and clamped by the recording and / or reproducing mechanism, so that the optical disk can be rotated. For example, an optical disc is rotated by a recording and / or reproducing mechanism, a laser is irradiated on a signal recording surface of the optical disc from an optical pickup, and an information signal is read out by detecting reflected light of the optical pickup. .

In a disk recording and / or reproducing apparatus, a tray storage section in which a plurality of disk trays holding optical disks in the apparatus are stacked and stored, and recording and / or reproducing of the optical disk are performed. Some have a recording / reproducing unit. In this type of recording and / or reproducing apparatus, a disk tray is moved from a tray storage section to a recording / reproducing section by a transport mechanism. Further, the recording / reproducing unit is provided with a recording and / or reproducing mechanism for moving up and down in the recording / reproducing unit and rotating the optical disk to read out information signals recorded on the optical disk.

In such a disk recording and / or reproducing apparatus, when a user selects an optical disk at a predetermined address, the recording and / or reproducing mechanism is moved to a predetermined height in the recording / reproducing section, and the transport mechanism is used. Move the disc tray to the recording / playback position. Then, the recording and / or reproducing mechanism lifts the optical disk from the disk tray and clamps the optical disk so that the optical disk can be rotated.

[0005]

The disk recording and / or reproducing apparatus as described above is provided with a disk regulating mechanism for preventing the optical disk from falling off the disk tray when the disk tray is moved. ing. This disk restricting mechanism is configured such that an elastic body fixedly attached to the apparatus side presses the optical disk against the moving disk tray.

However, in the disk regulating mechanism configured as described above, since the elastic body is in contact with the optical disk held by the moving disk tray, the surface of the optical disk is damaged. Further, since the pressing force is applied to the moving disk tray by the elastic body, the moving operation of the moving disk tray during the movement may become unstable.

Accordingly, an object of the present invention is to provide a disk recording and / or reproducing apparatus capable of transporting a disk in a stable state.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a disk recording and / or reproducing apparatus according to the present invention has a disk exchange position at which a disk is exchanged and a disk recording and / or reproduction. A disc holding means for moving the disc holding means while being moved according to the guide means over the recording / reproducing position to be performed, a conveying means for conveying the disc holding means between the disc exchange position and the recording / reproducing position, When the disc holding means is conveyed to the recording / reproducing position, it is urged in the direction opposite to the conveying direction in which the front end side of the disc holding means and a part of the upper surface of the disc to be mounted are held in front of the recording / reproducing position. Disk regulating means. Thus, the disk is partially held on the upper surface of the disk together with the front edge of the disk holding means by the disk restricting means. Is prevented. In such a disk recording and / or reproducing apparatus, a disk is exchanged at a disk exchange position where the disk holding means has been moved out of the apparatus, and thereafter, the disk holding means is moved to a recording / reproducing position in the apparatus, The present invention can be applied to an apparatus that performs recording and / or reproduction of a disk, and the number of disk holding units provided is not limited. Further, the disc regulating means may be configured to escape from the upper surface of the disc at the recording / reproducing position in conjunction with the operation of the disc driving means holding the disc.

In order to solve the above-mentioned problems, a disk recording and / or reproducing apparatus according to the present invention has a plurality of disk holding means for holding disks and a state in which the plurality of disk holding means are parallel to each other. Storing means for storing the disk holding means so that the disk holding means is transported from the storing means orthogonally to the stacking direction; and storage means for storing the disk holding means in the storing means. Transport means for transporting the disk holding means in accordance with a guide means over a position and a recording / reproducing position at which recording and / or reproduction of the disk is performed; In front of the reproducing position, a disc urged in the direction opposite to the transport direction for nipping the front end side of the disc holding means and a part of the upper surface of the disc to be placed. And a click regulatory means. Thus, the disk is partially held on the upper surface of the disk together with the front edge of the disk holding means by the disk restricting means. Is prevented.
Such a disk recording and / or reproducing apparatus is placed in various postures such as a vertical position and a horizontal position in a vehicle, for example, like a vehicle-mounted disk recording and / or reproducing device, and is generated while the vehicle is running. It is suitable for a device placed in a place where large vibration such as vibration is applied.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The disc reproducing apparatus includes a disc tray storage device for storing a plurality of disc trays.
In the disc tray storage device, when the disc tray is removed from the disc reproducing device to exchange the optical disc, the disc tray is moved inside and outside the device when the disc tray is not loaded, and the optical disc is exchanged. Further, when the disc tray storage device is stored in a predetermined storage portion of the disc reproduction device, it is brought into a state where it can be pulled out by the transport mechanism to a reproduction position for reproducing the optical disc of the disc reproduction device.

[Explanation of Disc Tray] A disc tray storage device 1 used in this disc reproducing apparatus is shown in FIG.
As shown in FIG. 1, a disc tray 3 for holding an optical disc 2 and a tray storage body 4 in which ten disc trays are stacked and stored.

As shown in FIGS. 2 and 3, the disk tray 3 is made of a synthetic resin material such as a polycarbonate resin, and is formed as a rectangular thin plate as a whole. As shown in FIG. 2, the disc tray 3 has a recessed disc storage recess 11 formed substantially on one main surface. The disc accommodating recess 11 is formed in a circular shallow dish shape having a diameter slightly larger than the diameter of the optical disc 2 so as to hold the optical disc 2 to be placed.

The disc storage recess 11 further includes:
An auxiliary disk storage recess 12 having a smaller diameter than the disk storage recess 11 is formed so that the centers are aligned. An optical disk having a diameter of 12 cm is placed in the disk storage recess 11, and an optical disk having a diameter of 8 cm is mounted in the auxiliary disk storage recess 12. A bottom opening 13 is formed in the disc storage recess 11 from the center to a rear end located inside the disc tray storage device 1. The area provided in the center of the disk tray 3 in the bottom opening 13 is the disk table opening 1 into which the disk table enters.
The area provided over the rear end of the disc tray 3 is used as an optical pickup opening 13b facing the optical pickup. In addition, the auxiliary disk storage recess 12 is provided with an escape hole 14 for the positioning mechanism to escape when the disk tray 3 is transferred to the recording / reproducing unit.

The disc tray 3 has a disc tray 3
A pair of guide rails 15 is formed on both side edges in the moving direction of the guide rail. The guide rail portion 15 has, at the rear end side of the disk storage recess 11, a falling-off prevention portion 16 a for preventing the disk tray 3 from falling out of the tray storage body 4,
16b are formed. The drop-off prevention parts 16a, 16
“b” is formed in a claw shape, and is engaged with an engaging portion of a guide portion of the disc tray 3 provided in the tray housing 4, which will be described in detail later. Further, the guide rail portion 15 is provided at the rear end side of the disc tray 3 with a gap ensuring projection 17 for securing a gap with a guide portion for guiding the disc tray 3 provided in the tray housing 4. Have been.

In such a disc tray 3, the area around the tray periphery where the disc accommodating recess 11 is not provided is the first.
The area in which the disk storage recess 11 is provided is a second thick section 27 formed thinner than the first thick section 26, and the area in which the auxiliary disk storage recess 12 is provided. The third thick portion 28 is formed to be thinner than the second thick portion 27. In addition, disk tray 3
The area where the guide rail portion 15 is provided is a fourth thick portion 29 formed thinner than the first thick portion 26. The thickness of the disk tray 3 is reduced in the order of the first thick portion 26, the fourth thick portion 28, the second thick portion 27, and the third thick portion 28. Therefore, the disc tray 3
Are the disk storage recess 11 and the auxiliary disk storage recess 1
2 is formed thin and the bottom opening 13 is provided, so that it is easily deformed elastically. The disc tray 3 can be easily removed from the tray housing 4 by utilizing this elastic deformation.

The disc tray 3 is provided with a pull-out operation section 18 which is biased to one of the front ends in the pull-out direction. The drawer operating section 18 is formed in a knob shape. When performing the operation of inserting and removing the disk tray 3 from the tray housing 4, the drawer operation unit 18 is pinched by a finger, and the disk tray 3 is exchanged from the storage position where the disk tray 3 is stored. In addition to moving the disc tray 3 to a detaching operation position where the disc tray 3 is detached, the disc tray 3 is engaged with the transport mechanism when the disc tray 3 is attached to the disc reproducing device, and the disc tray 3 is moved to the tray housing 4 and the disc reproducing device. Part. In addition, a notch 19 is formed in the drawer operating section 18 at the tip end of the disc tray 3. When the disc tray 3 is moved into the reproducing section of the disc reproducing apparatus, a position regulating projection for regulating the position of the disc tray 3 in the reproducing section is abutted against the notch 19.

At the rear end of the disc tray 3, a locking portion 21 is provided on one side, which is cut out inward of the disc tray 3. An elastic piece provided on the inner back wall of the tray housing 4 is engaged with the locking portion 21. That is, the disc tray 3 is provided with the tray housing 4
By being engaged with the elastic pieces on the side, the tray storage body 4 is held at the storage position. On the other side of the rear end of the disc tray 3, a notch 22 is provided. This notch 2
The reference numeral 2 extends to the disk storage recess 11. A buffer portion made of an elastic material such as urethane provided on the inner wall of the tray housing 4 enters the cutout portion 22, and protects the disk tray 3 and the optical disk 2 placed in the disk storage recess 11 from impact. .

On both sides on the rear end side of the disk tray 3, the first region is formed in a thick region where the disk storage recess 11 is not provided.
Are formed so as to protrude. The first protruding portion 23 is abutted against a second protruding portion 24 on the other surface side of the disc tray 3 to secure a gap between the disc trays 3.

As shown in FIG. 3, on the other surface of the disc tray 3, second protruding portions 24 are provided on both sides of its front end. The second protruding portion 24 has a concave portion formed on a main surface thereof, so that alignment with the first protruding portion 23 can be easily performed. The first protrusion 23 and the second protrusion 24 are abutted against each other, so that they are at the storage positions in the disk tray 3 and the tray housing 4 at the playback position in the playback unit of the disk playback device. A gap with the disc tray 3 is secured.

[Explanation of Tray Storage Unit] Next, the tray storage unit 4 in which the above-mentioned disc tray 3 is stored will be described. As shown in FIG. 1 and FIG. And a tray guide portion 32 provided on the inner surface of the second side surface 36, 37. The outer housing 31 is formed in a rectangular shape large enough to store ten disk trays 3 in a stacked manner. The outer housing 31
An insertion direction display section 33 for displaying the direction of insertion into the disc player is provided on the main surface serving as the ceiling. The insertion direction display unit 33 is specifically configured by a triangle mark, an arrow, or the like indicating the insertion direction. Also, on the main surface of the outer housing 31, an operation unit 3 for improving operability when inserting and removing the disk tray storage device 1 from the disk reproducing device is provided.
4 are provided. The operation unit 34 is formed with irregularities on a side edge of the disc tray storage device 1 in the direction in which the disc tray storage device 1 is taken out. The user grips the operation unit 33 and performs an insertion / removal operation from the disc reproducing apparatus.

The tray housing 4 is provided with a tray insertion / removal opening 35 for insertion / removal of the disk tray 3 in the insertion / removal direction of the disk tray 3. This tray insertion opening 3
Reference numeral 5 denotes a state in which the disk tray 3 is stored in the tray storage body 4. Further, it is provided so as to protrude in the pulling-out direction of the disc tray 3. That is, the tray insertion / removal opening 35 is provided with a drawer operation notch 38 in which the drawer operation unit 18 faces outward. The drawer operation notch 38 is formed by cutting out a side edge on the tray insertion / removal opening 35 side over the ceiling surface, the first side wall, and the bottom surface of the tray housing 4. The notch 38 for pull-out operation facilitates the pull-out operation of the disk tray 3 by making the pull-out operation portion 18 of the disk tray 3 face outward.

The tray insertion / removal opening 3 of the outer casing 31
As shown in FIG. 4, the inner wall facing the side 5 is provided in correspondence with the number of the disc trays 3 in which the elastic pieces 39 to be engaged with the above-mentioned locking portions 21 are stored. The inner wall is provided with a buffer portion 40 which is abutted against the notch portion 22 and protects the disk tray 3 and the optical disk 2 held by the disk tray 3.

As shown in FIG. 4, the outer casing 31 has eleven guide pieces for guiding the disc tray 3 on opposing side walls of the outer casing 31 in the same direction as the moving direction of the disc tray 3. They are provided side by side in parallel. Then, the tray guide portion 32 into which the guide rail portion 15 of the disc tray 3 is fitted to guide the movement of the disc tray 3 is configured as a set of two vertically adjacent guide pieces. That is, the tray guide portion 32 is formed in a concave shape by two adjacent guide pieces and the first and second side walls 36 and 37 provided with the guide pieces. Then, the tray guide section 32
Are provided in ten stages corresponding to the number of disk trays 3 stored in the tray housing 4. Tray guide part 32
Is not provided on the entire surfaces of the first and second side walls 36 and 37 but is provided with a length necessary to support the disk tray 3.

The tray guide portion 32 includes a first support portion 42 for supporting the lower surface side of the guide rail portion 15 of the disk tray 3 and a second support portion for supporting the upper surface side of the guide rail portion 15 of the disk tray 3. 43. The second support portion 43 has a disc regulating portion 4 for regulating the storage position of the optical disc 2 placed in the disc storage recess 11.
4 are provided. The distance between the first support part 42 and the second support part 43 is determined by the guide rail part 1 of the disc tray 3.
5, that is, a dimension obtained by adding the thickness of the fourth thick portion 29 and the gap ensuring protrusion 17. As described above, the recess formed by the first support portion 42 and the second support portion 43
As shown in FIG.
Is fitted, the second supporting portion 43
7 is brought into contact therewith. In addition, disk tray 3
Is supported via a clearance 41 required for the tray guide portion 32 to slide from the side surface of the concave portion formed by the first support portion 42 and the second support portion 43.

As shown in FIGS. 4 and 5, the disc regulating portion 44 is formed from the upper side edge of the second support portion 43.
The second support portion 43 is formed to be thin and to have a step. That is, the distance between the first support portion 42 and the disc regulating portion 44 is determined by the first support portion 42 and the second support portion 43.
Is larger than the distance between the first thick part 26 and the first thick part 26. Therefore, the disc regulating portion 44
Is located above the first thick portion 26 and the peripheral edge of the optical disk 2 placed in the disk storage recess 11 of the disk tray 3. Restrict the storage position.

First support portion 42 and disc regulating portion 44
Is formed so as to gradually become thin so as to gradually descend toward the tray insertion / removal opening 35 side. Therefore, the tray guide portion 32 is connected to the first support portion 42 and the second support portion 42.
Are formed such that the gap between the support portions 43 is larger on the tray insertion / removal opening 35 side than on the inner side of the outer housing 31. Therefore, in the vicinity of the tray insertion / removal opening 35, the gap ensuring projection 17 is not brought into contact with the second support portion 43. By configuring the tray guide portion 32 in such a configuration, the thickness of the tray housing 4 can be reduced. That is, the distance between the first support portion 42 and the second support portion 43 is determined by the thickness of the guide rail portion 15 and the fourth thick portion 2.
8 may be provided. Therefore, the gap between the first support portion 42 and the second support portion 43 can be made smaller than if the guide rail portion 15 had the same thickness as the first thick portion 26. Thus, the thickness of the tray housing 4 can be reduced.

Further, the tray guide portion 3 of the second side wall 37
2, a convex engaging portion 46a is provided in the middle of the tray guide portion 32 so as to be engaged with the drop-off preventing portion 16a. In addition, the tray guide portion 32 of the first side wall 36 includes:
In the vicinity of the tray insertion / removal opening 35, a convex engaging portion 46b that is engaged with the drop-off preventing portion 16b is provided. When the disc tray 3 is pulled out from the tray housing 4, the engaging portions 46 a and 46 b serve as drop-off preventing portions 16 a and 16 b.
b and prevents the disc tray 3 from dropping out of the tray housing 4. Further, the engaging portion 46a is provided in the middle of the tray guide portion 32 from the engaging portion 46b provided in the vicinity of the tray insertion / removal opening 35 of the tray guide portion 32. The disk tray 3 can be easily removed from the tray housing 4.

The first side wall 36 or the second side wall 37
In the vicinity of the tray insertion / removal opening 35, the tray guide portion 3
An address display section for writing the address 2 may be provided. Thereby, the user can attach the disc tray 3 on which the desired optical disc 2 is placed at the desired address.

When the disc tray 3 is stored in the tray housing 4, it is in the state shown in FIG. That is, the disk tray 3 and the disk storage recess 11 at the storage position completely stored in the tray storage body 4
1 and the drawer operating portion 18 of the disk housing recess 11 is exposed to the outside through the drawer operating notch 38 of the outer housing 31. When the drawer operating portion 18 faces the outside of the drawer operating notch 38, the disc tray 3
The operation of pulling out from the device is facilitated.

As shown in FIG. 1, when the disc tray 3 is pulled out by a disc reproducing apparatus or a finger to pull it outward in accordance with the guide rail 15, the drop-out preventing portions 16a and 16b are pulled out. The guide rail 15 is moved until it is engaged with the engaging portions 46a and 46b. The position of the disk tray 3 is a position where the disk tray 3 is pulled out to the outermost position. When the disk tray 3 is attached to the disk reproducing device, the position corresponds to the reproduction position of the optical disk 2. At the removal operation position where the removal operation is performed. The disk tray 3b in this state is in a state where the bottom opening 13 is completely exposed to the outside.

The disc tray 3 housed in the tray housing 4 can be removed from the storage position where it is completely housed in the tray housing 4 with the bottom opening 13 facing completely outward. It moves along the tray guide portion 32 over an operation position (a reproduction position of the optical disk 2 described later).

The moving state of the disc tray 3 will be described with reference to FIG. FIG. 6 is a cross-sectional view taken along the line AA shown in FIG. 5, and is a cross-sectional view of the guide rail portion 15 and the first and second support portions 42 and 43 of the tray guide portion 32.

The disc tray 3a in FIG. 6 is the disc tray at the storage position. The disc tray 3a in the storage position has a front end edge which corresponds to the tray insertion opening 3
5 at the same position as the end face. And disk tray 3
The rear end edge of “a” is located at a position where the gap ensuring projection 17 is not provided on the inner side of the outer housing 31 and the tray guide portion 32 is provided. When the disc tray 3a is moved in the pull-out direction, the disc tray 3a is brought into the state of the disc tray 3b.

The disc tray 3b is provided with
Are in contact with the second support portion 43 that constitutes the tray guide portion 32. As a result, a gap with the disk tray 3 stored above the disk tray 3b is secured.

The disc tray 3b further includes:
When the disc tray 3c is moved to the removal operation position, the disc tray 3c is set. That is, the first support portion 42
As described above, it is formed to be gradually thinner so as to gradually descend toward the tray insertion / removal opening 35 side. The disc tray 3c is moved to a state where the gap assurance projection 17 is located on the side of the thin tray insertion / removal opening 35. Then, the disc tray 3c
Descends according to the first support portion 42. In this state, a clearance is formed between the gap ensuring projection 17 and the second support portion 43. As a result, the distance between the disk tray 3c and the disk tray 3 stored above the disk tray 3c is further increased, and the work of replacing the optical disk 2 placed on the disk tray 3c is facilitated. That is, the disc tray 3
As shown in FIG. 5, c moves only to a state where the disk storage recess 11 is not completely exposed to the outside from the outer housing 31 even at the removal operation position. However, since the distance between the disk tray 3c and the upper disk tray 3 is increased, the work of replacing the optical disk 2 is facilitated.

As shown in FIG. 7, the disc tray 3 is in a state where the front end of the disc tray 3a at the storage position and the rear end of the disc tray 3c at the reproduction position overlap each other. The optical disk 2 held on the disk tray 3c is rotated with its peripheral edge overlapping the front end of the disk tray 3a. Therefore, in the disc tray storage device 1, the first projecting portion 23 and the second
The playback position (removal operation position)
And the disc tray 3 at the storage position is secured. As shown in FIG. 7, the second protrusion 24 on the back side of the disc tray 3a in the storage position and the disc tray 3a
And playback position (removal operation position)
The first protruding portions 23 on the front surface side of the disc tray 3c are abutted against each other. Thereby, the disc tray 3
The gap between the disc tray 3c and the disc tray 3c is ensured, and the work of replacing the optical disc 2 is facilitated. In addition, at the playback position, a gap between the disc tray 3a and the disc tray 3c is secured, and the gap between the optical disc 2 held on the disc tray 3c at the playback position and the disc tray 3a above the disc tray 3c is secured. Will also be secured. Therefore, at the time of reproduction of the optical disk 2, the optical disk 2 is prevented from coming into contact with the disk tray 3a located on the upper side even due to surface deviation.

As described above, the disk tray 3 moves only to a state where the disk storage recess 11 is not completely exposed to the outside from the outer housing 31. This state is a reproduction position when the disc tray storage device 1 is loaded in the disc reproduction device 50. The optical disk 2 is slightly lifted from the disk tray 3 and clamped by the disk drive / reproduction mechanism when the disk tray 3 is in the reproduction position. First protrusion 23 and second protrusion 2
The provision of the first support portion 42 and the provision of the first support portion 42 at the lower position make it possible to ensure an interval between the reproduction position and the disc tray 3 at the storage position.

The second protruding portion 24 of the disc tray 3a shown in FIG. 7 regulates the mounting position of the optical disc 2 placed on the disc tray 3c located at the lower side and at the reproducing position. . That is, the disc tray 3a
The second protruding portion 24 is located above the inner peripheral edge of the tray housing 4 of the optical disc 2 at the reproduction position, as shown in FIGS. As a result, the mounting position of the optical disc 2 placed on the disc tray 3 that moves from the storage position to the playback position is first regulated by the disc regulation unit 44 of the tray guide unit 32, and thereafter, the disc tray 3 is moved to the playback position. The mounting position of the optical disk 2 placed in the disk storage recess 11 of the disk tray 3 is regulated by the second projecting portion 24 until it reaches. In particular, the second protrusion 24 prevents the disc tray 3 from dropping out of the disc storage recess 11 while the disc tray 3 is moving from the storage position to the reproduction position.

[Explanation of Disk Tray Removal and Mounting Operations] Next, the operation of removing and mounting the disk tray 3 from the tray housing 4 will be described with reference to FIG. FIG. 9 is a diagram in which the disc tray 3 is at the removal operation position.

As described above, the disc tray 3 is engaged with the pull-out operation section 18 by a finger or a transport mechanism for transporting the disc tray 3 to the playback section. At this time, the finger or the transport mechanism is engaged with the pull-out operation section 18 from the guide rail section 15 side. The disk tray 3 is moved in FIG. 9 in the arrow X ₃ direction by the finger or transport mechanism, drawn from tray body 4, disengagement prevention part 1 of the disc tray 3
6a and 16b are engaging portions 46a and 4a of the tray guide portion 32.
6b and pulled out until it stops. At this time, an arrow X is provided on the disc tray 3 through the drawer operation unit 18.
Force will be applied in _one direction.

Then, the disc tray 3 is rotated about the fulcrum A on the edge of the second side wall 37 on the side of the tray insertion opening 35 as a fulcrum. Then, the falling-off prevention portion 16b of the tray guide portion 32 on the first side wall 36 side of the disc tray 3 draws a locus as shown by a dotted line a in FIG. This trajectory a is, as shown in FIG.
The stopper portion 16b is engaged with the engaging portion 46b provided on the side wall 36, and the falling-off preventing portion 16b is engaged with the engaging portion 46b.

On the other hand, the user holds the disc tray 3 by hand or the like, for example, over the bottom opening 13 and moves the arrow X in FIG.
_{A case in} which force is applied in _two directions to remove the disc tray 3 will be described. In this case, the disc tray 3 is rotated about the fulcrum B at the edge of the first side wall 36 on the side of the tray insertion / removal opening 35 as a fulcrum. Then, the falling-off preventing portion 16a of the tray guide portion 32 on the side of the second side wall 37 of the disc tray 3 draws a locus like a locus b shown by a dotted line in FIG. This locus b is shown in FIG.
As shown in FIG. 7, the engaging portion 46 provided on the second side wall 37 is provided.
a, the falling-off preventing portion 16a is engaged with the engaging portion 46a. However, disc tray 3
By being elastically deformed, the engagement state between the falling-off preventing portion 16a and the engaging portion 46a is released, and the device is detached from the tray housing 4.

That is, the disk tray 3 is positioned at the arrow X in the figure.
The radius r ₁ of a circle drawn by a locus a when rotated by a force in _one direction and the radius r ₂ of a circle drawn by a locus b when the disc tray 3 is rotated by a force in the direction of arrow X _{2 in the} figure. Has the following relationship.

The radius r _{1 of the} trajectory a> the radius r _{2 of the} trajectory b. This is because the second side wall 37 protrudes from the first side wall 36 by providing the notch 37 for pull-out operation. Therefore, the circle drawn by the locus a is larger than the circle drawn by the locus b. Accordingly, the disc tray 3, when pulled out, force is applied in the drawing direction of arrow X _1, further, even the disc tray 3 is elastically deformed, can not be removed tray body 4, falling is prevented Will be. Also, the disc tray 3, when a force is applied in the drawing direction of arrow X _2, the disengagement prevention part 16a is to be engaged with the engagement portion 46a, by the disk tray 3 is elastically deformed The engaged state is released,
The disc tray 3 can be removed from the tray housing 4.

The disk tray 3 once removed from the tray housing 4 is attached to the tray housing 4 as follows. That is, first, the falling-off prevention portion 16b of the tray guide portion 32 is inserted into a predetermined tray guide portion 32 on the first side wall 36 side. And the disc tray 3
The arrow direction X ₂ FIG by being rotationally operated in the opposite direction, disengagement prevention part 16a of the guide rail section 15 is inserted into the second predetermined wall 37 side of the tray guide unit 32. At this time, the disc tray 3 is elastically deformed. As a result, the falling-off preventing portion 16a enters the tray guide portion 32 without being hindered by the locking portion 46 of the tray guide portion 32, and the mounting operation to the tray housing 4 is completed. Will be. That is, the operation of attaching the disk tray 3 to the tray housing 4 may be performed by performing the operation reverse to the operation of removing the disk tray 3.

As described above, the disc tray 3 is prevented from dropping out of the tray housing 4 at the time of a normal pull-out operation from the tray housing 4 such as replacement work of the optical disc 2. Therefore, according to the disc tray storage device 1, the work of exchanging the optical disc 2 can be easily performed. Further, even when the disk tray 3 is removed from the tray housing 4, the disk tray 3 is
It can be attached to the tray housing 4 by a relatively easy operation.

[Outline of Disc Reproducing Apparatus] Next, the disc reproducing apparatus 50 in which the above-described disc tray storage device 1 is loaded will be described. As shown in FIG. 10, the disc reproducing apparatus 50 includes a loading section 51 in which the tray housing 4 is loaded, and a reproducing section 52 that plays back the optical disk 2 alongside the loading section 51. The disc reproducing device 50 has an opening 53 for insertion and removal of the disc tray storage device 1 on one main surface thereof. The disc tray storage device 1 connects the tray insertion / removal opening 35 to the reproduction unit 5.
In Figure 10 toward the secondary side is insert operation in the arrow X ₄ direction, is loaded into the loading section 51. The reproducing unit 52 includes the optical disc 2
And a disk drive / reproducing mechanism for reading data by irradiating a laser onto the signal recording surface of the optical disk 2 from the optical pickup and detecting return light reflected from the signal recording surface while rotating the optical disk 2 by clamping. ing. The disc drive / playback mechanism moves up and down the playback unit 52 to the height of the address of the selected disc tray 3.
The disc reproducing device 50 selects the disc tray 3
Is read out to the reproducing unit 52, and the optical disk 2 is reproduced by clamping and rotating the optical disk 2 by the disk driving / reproducing mechanism.

[Description of Attaching / Detaching Mechanism of Disk Tray Storage Apparatus] The operation of attaching / detaching the disk tray storage apparatus 1 to / from the loading section 51 is performed by an attaching / detaching mechanism described below. This attachment / detachment mechanism is, as shown in FIG.
A drive motor 61 provided on the bottom surface of the chassis 60 for raising and lowering the disk drive / playback mechanism in the playback unit 52; a connection gear 63 rotated from the drive motor 61 via a transmission mechanism 62; The first moving body 64 and the like that are engaged with the first moving body 64 are provided. The transmission mechanism 62 includes the drive motor 6
A first gear 66 having a worm gear 65 pivotally supported by one drive shaft, a large-diameter first gear portion 66a and a small-diameter second gear portion 66b meshed with the worm gear 65;
And a second gear 67 having a large-diameter first gear portion 67a and a small-diameter second gear portion 67b meshed with the second gear portion 66b, and meshed with the second gear portion 67b. It has a third gear 68 having a large diameter first gear portion 68a and a small diameter second gear portion 68b. The second gear portion 68b is
The gear is engaged with the connection gear 63. And the connection gear 63 is
The first moving body 64 is engaged with a gear portion 64a provided on the first moving body 64. Therefore, when the driving force of the driving motor 61 is transmitted, the first moving body 64 is moved by the arrow X in FIG.
₅ or moves in the arrow X ₆ direction.

This attachment / detachment mechanism is similar to that shown in FIGS.
As shown in FIG. 7, a lock lever 69 that is pressed and rotated by the disk tray storage device 1 to maintain the disk tray storage device 1 in the loading position where the disk tray storage device 1 is loaded in the loading portion 51, and the disk tray storage device 1 And a detection lever 71 for detecting the loading.

The lock lever 69 is rotatably supported by the chassis 60 constituting the bottom surface of the disk reproducing device 50 by a support shaft 70 erected on the chassis 60. The lock lever 69 has a disk tray storage device 1
A lock pin 72 which is pressed against the bottom surface of the disk tray and holds the disc tray storage device 1 at the loading position is erected.
The lock pin 72 faces the inside of the loading section 51 through a guide hole 73 provided in the chassis 60. The lock lever 69 is connected to the detection lever 71 via a contraction spring 74. Therefore, the lock lever 69, as shown in FIGS. 11 and 12, in a state where the disc tray housing device 1 is not loaded on the loading section 51, the support shaft 70 in FIG. 11 the arrow X ₈ direction as the rotation fulcrum It is in a state of being urged to rotate. Furthermore, the lock lever 69
As shown in FIG. 11, a first moving body 64 is
Unlocking pin 9 to be engaged with an engaging portion 94 provided in
5 are provided. Unlocking pin 95 by the first moving body 64 is moved in the arrow X ₆ direction in FIG. 11, to rotate the lock lever 69 in FIG arrow X ₈ direction.

The detection lever 71 is rotatably supported by a support shaft 75 on the chassis 60 near the lock lever 69. The detection lever 71 is provided with a detection piece 76 which is pressed on the bottom surface of the disk tray storage device 1 and detects whether or not the disk tray storage device 1 is loaded in the loading portion 51 in the middle thereof. The detection piece 76 faces the inside of the loading portion 51 through an opening 77 formed in the chassis 60. 11 and FIG.
As shown in 2, and is rotationally biased in the arrow X ₁₀ direction by contraction spring 74. When the detection lever 71 is pressed by the disc tray storage device 1, an arrow X _{9 in} FIG.
The detection switch 78 is configured to be rotated in the direction of FIG. The detection switch 78 detects that the disc tray storage device 1 has been loaded into the loading unit 51 by being pushed by the tip of the detection lever 71.

The ejection mechanism 79 of the disc tray storage device 1 is provided on the ceiling of the chassis 60 as shown in FIG. The discharge mechanism 79
An ejection member 81 for ejecting the disc tray storage device 1,
There are provided two elastic members 80 for urging the ejection member 81 in the ejection direction of the disc tray storage device 1.

The discharge member 81 is provided with a discharge portion 82 at the side edge located in the depth direction of the loading portion 51, which is abutted against the inner side surface of the disc tray storage device 1 toward the inside of the loading portion 51. The discharge portion 82 faces the inside of the loading portion 51 through a guide hole 85 provided from the deepest portion of the ceiling of the chassis 60 to the middle of the short side of the chassis 60. A long guide hole 83 is formed in the discharge member 81 at the center in the longitudinal direction. A corresponding engagement piece 84 provided on the ceiling near the side edge of the guide hole 85 of the chassis 60 on the side of the attachment / detachment opening 53 is engaged with the guide hole 83. As a result, the discharge member 81 is connected to the chassis 60.
Attached movably along the short side direction. One end of such a discharge member 81 is locked to the ceiling surface of the chassis 60, and the other end of the discharge member 81 is in the direction of the attachment / detachment opening 53 by an elastic body 80 locked to the discharge member 81, that is, FIG. during 12 is urged in the arrow X ₁₁ direction. That is, the discharge unit 8
2 is adapted to move by the length of the guide hole 85.

On the other hand, as shown in FIG. 13, the disc tray storage device 1 has a first guide for guiding the insertion / removal operation to the loading section 51 at the center of the other main surface side of the tray storage body 4. A recess 87 is provided. The first concave portion 87 is provided with the insertion end side into the loading portion 51 opened, and a plurality of guide pins 8 provided at the center of the bottom surface of the loading portion 51 shown in FIG.
8 is engaged. Thus, the first concave portion 87 prevents the disc tray storage device 1 from being erroneously inserted into the loading portion 51 from the wrong direction, and performs positioning during the insertion operation to guide the insertion / removal operation.

Next to the first recess 78, as shown in FIG. 13, a second recess 89 for holding the disc tray storage device 1 at the loading position is provided.
The second concave portion 89 is provided with the insertion end side into the loading portion 51 opened, and is provided at one side edge so as to be inclined, and presses the lock pin 72 of the lock lever 69 with the first pressing portion 9.
0 and a lock portion 91 provided in a concave shape and provided continuously with the first pressing portion 90 and engaged with the lock pin 72.
And a second pressing portion 92 provided on the side facing the first pressing portion 90 and the lock portion 91 and pressing the detection piece 76 of the detection lever 71.

Such a disk tray storage device 1 is
As shown in FIG. 10, an insertion operation is performed on the loading unit 51 from the attachment / detachment opening 53 in accordance with the display direction of the insertion direction display unit 33. Then, first, the disc tray storage device 1
As shown in FIG. 12, is inserted into the loading section 51 until the side of the tray housing 4 on the insertion end side abuts against the discharge section 82 of the discharge member 81, and is held at the temporary loading position. Then, the disc tray housing device 1, when further pressed in the insertion direction from the temporary loading position, presses the discharge portion 82 against the contracting force of the elastic body 80 is moved in FIG. 12 the arrow X ₁₂ direction Will be. At this time, the lock lever 69 has a lock pin 72 provided on the bottom of the tray housing 4.
It is pressed by the first pressing part 90 of the recess 89 will be rotated in 11 arrow X ₇ direction. The lock pin 72, the tray container 4 is rotated 11 in the arrow X ₇ direction while being pressed in the insertion direction and reaches to the locking portion 91 in FIG. 11 by the elastic force of the contraction spring 74 arrow X
_It is rotated in _eight directions, engaged with the lock portion 91, and held at the loading position. At the same time, the detection lever 71
FIG. 11 shows that the detection piece 76 is pressed by the second pressing portion 92,
The disc tray storage device 1 is turned in the direction of the middle arrow X ₉ , and the tip of the disc tray storage device 1 presses the detection switch 78.
To detect that the battery has been completely loaded.

The disc tray storage device 1 is discharged from the loading section 51 as follows. As shown in FIG. 11, the ejection mechanism of the disk tray housing device 1 is in a state where the lock lever 69 is rotated in the arrow X ₈ direction in FIG. 11, the detection lever 71 is rotated in the arrow in FIG X ₉ direction It is in the state that was done. In this state, the driving motor 61 is driven, the first moving body 64 is moved in the arrow in FIG X ₅ direction via the transmission mechanism 62. Then, the engaging portion 9 of the first moving body 64
4 presses the unlocking pin 95 of the lock lever 69 to rotate the lock lever 69 in FIG arrow X ₇ direction. As a result, the engagement between the lock portion 91 of the disc tray storage device 1 and the lock pin 72 of the lock lever 69 is released. Then, the discharging mechanism 79 is moved to the elastic body 80.
The elastic force, the discharge portion 82 presses the side surface of the insertion end side of the tray body 4 in the discharging direction, thereby moving the disc tray housing device 1 in FIG. 12 in the arrow X ₁₁ direction discharged from the loading unit 51. At this time, the detection lever 71, by the elastic force of the contraction spring 74 is rotated in the arrow X ₁₀ direction in FIG. 11, the state of pressing the detection switch 78 is released. Thus, the detection switch 74 detects that the disc tray storage device 1 has been ejected from the loading unit 51.

[Explanation of the transport mechanism of the disc tray 3] In the disc reproducing apparatus 50, the disc tray 3 is moved by the transport mechanism of the disc reproducing apparatus 50 from the storage position of the disc tray 3 of the loading section 51 shown in FIG. 52
At the playback position and from the playback position to the storage position. As shown in FIG. 14, this transport mechanism is provided on an upper chassis 101 to which a disk clamper for clamping the optical disk 2 constituting the drive / reproduction mechanism of the optical disk 2 is attached. The transport mechanism is shown in FIGS.
, A loading motor 102 for driving the transport mechanism, an engagement member 103 for moving the disc tray 3 from a storage position in the disc tray storage device 1 to a reproduction position in the reproduction unit 52, and , A first rotating arm 105 that is rotated from the loading motor 102 via the drive transmission mechanism 104, and an engagement member 1
03 is rotatably supported and the first rotatable arm 1 is provided at the other end.
05 is provided with a second rotating arm 106 which is pivotally supported.

A drive transmitting mechanism 104 for transmitting the driving force of the loading motor 102 to the first rotating arm 105.
14 and 15, a first transmission gear 108 meshed with a worm gear attached to a drive shaft of the loading motor 102, and a cam gear 109 meshed with the first transmission gear 108. , This cam gear 1
09, a second transmission gear 110 mounted on the upper side of the upper chassis 101, a first sector gear 111 rotatably supported by the upper chassis 101, and meshed with the first sector gear 111. An intermediate lever 112 that is rotated and rotates the first rotation arm 105; and a second sector gear 113 that is meshed with the second transmission gear 110.
And The first sector gear 111 has a guide shaft 11
4 are provided. The guide shaft 114 is formed in the guide hole 11 formed by bending the second sector gear 113 into a substantially C-shape.
5 and is stopped by the support member 116 to connect the first sector gear 111 and the second sector gear 113.
The rotation area of the second sector gear 113 is thereby regulated. The intermediate lever 112 is rotatably supported by a support shaft 117 erected on the upper chassis 101. The second fan-shaped gear 113 is provided with an engagement piece 119 that is engaged with a guide hole 118 provided in the upper chassis 101. The rotation area of the second sector gear 113 is thereby regulated. The support shaft 117 has an intermediate lever 11.
In addition to 2, the first rotating arm 105 and the second sector gear 113 are coaxially supported rotatably.

The first rotating arm 105 is provided with a boss 121 and a slit 122 in the middle thereof. Then, the elastic body 123 is provided on the boss 121.
Are fitted. Both ends of the elastic body 123 extend to the slit 122. A support protrusion 124 provided on the intermediate lever 112 is exposed from the slit 122 between both ends of the elastic body 123. As a result, the intermediate lever 112 and the first rotating arm 105 are connected, and the first rotating arm 105 is rotated.

The first rotating arm 105 has the first
A second rotation arm 106 is rotatably supported at a distal end opposite to the base end side on which the rotation arm 105 is supported. A linear member 125 having an elastic force is attached to the second rotating arm 106 so as to extend over the first rotating arm 105. The linear member 125 has one end locked to the first rotation arm 105, the other end locked to the second rotation arm 106, and the second rotation arm 106.
The biasing in Fig. 14 arrow X ₁₃ direction. The second rotating arm 106 is provided with an elongated guide hole 126. The engaging member 103 is rotatably supported in the guide hole 126, and is slidably supported in accordance with the guide hole 126.

The engaging member 103 is formed in a substantially C-shape as a whole, and is engaged with the pull-out operation portion 18 of the disc tray 3. The engaging member 103 is provided with a tray pull-in section 127 on the loading section 51 side and a tray pushing section 128 on the reproducing section 52 side. Tray retraction unit 12
When the disc tray 3 is pulled out from the loading section 51 to the reproducing section 52, the disc tray 7 comes into contact with the inner surface of the pull-out operation section 18. When pushing out the disc tray 3 from the reproducing unit 52 to the loading unit 51, the tray drawer unit 128 comes into contact with the outer side surface of the drawer operation unit 18.

The engaging member 103 is connected to the upper chassis 1.
In Figure 14 is moved in the arrow X ₁₅ or the arrow X ₁₆ direction along the guide holes 129 provided along the side edges 01. Thus, the locking member 103 performs the operation of pulling out and pushing out the disk tray 3.

The upper chassis 101 is provided with a concave guide 129 for pulling or pushing the disc tray 3 into or out of the reproducing section 52 on the open end side where the disc tray 3 is inserted and removed. Also, the upper chassis 101, the second rotary arm 106 when it is moved in the arrow X ₁₅ direction in FIG. 14, the second rotary arm 106 is abutted position regulating protrusion 131 is provided . In addition, the upper chassis 101 is provided with a rotation position regulating protrusion 132 adjacent to the position regulating protrusion 131. The second rotating arm 106 connects the engaging member 103 with the guide hole 1.
Once moved to the arrow in FIG X ₁₅ direction according to 29, first of all,
Thrust devoted to position regulating projection 131, then that is abutted against the rotation position regulating protrusion 132, it is rotated in the arrow in FIG X ₁₄ direction.

Such a transport mechanism includes a disc tray 3
In the state where the drawing is started from the loading section 51, the state shown in FIG. 15 is obtained. That is, in a state where the disk tray 3 is pulled out from the storage position of the loading unit 51 to the reproducing unit 52 of the reproducing unit 52, the disk tray 3
There is in the stowed position, the first rotary arm 105 is rotated in the arrow X ₁₇ direction in FIG. 15, the second pivot arm 106 is in a state of being abutted against the position regulating protrusion 131. At this time, the engaging member 103, linear by the elastic force of the member 125 is in a state where in is rotated in the arrow X ₁₃ direction figure pulled out portion 18 of the disc tray 3 in the tray pull-in portion 127
Are in a state where the inner side surfaces of the are abutted and engaged.

Then, when the loading motor 102 is driven, the state is as shown in FIG. That is,
First rotating arm 105, via the drive transmission mechanism 104 will be moved in the arrow X ₁₈ direction FIG. Then, the engaging member 103, along the guide hole 129, to be moved reproducing section 52 inwardly, i.e. 15 in toward the arrow X ₁₅ direction. The engaging member 103 draws the disc tray 3 into the reproducing unit 52 accordingly. The disc tray 3 is not entirely stored in the reproducing unit 52, but is in a state where the bottom opening 13 is stored.
In other words, the disc tray 3 stops only when the bottom opening 13 in which the disc reproducing mechanism necessary for rotating and reproducing the optical disc 2 is faced is moved into the reproducing section 52. Thus, the size of the disk reproducing device 50 can be reduced. Then, in this state, the optical disc 2 is brought into a state in which the optical disc 2 can be rotated in the reproducing unit 52. Incidentally, the engaging member 103 is in a state in which drawing has been rotated in the arrow X ₁₃ direction by the elastic force of the linear member 125.

When the reproduction of the optical disk 2 is completed and the user again moves the reproduction position of the reproduction unit 52 to the storage position of the loading unit 51, the first rotating arm 105
It is rotated in the arrow X ₁₇ direction in FIG. 16, is moved to the arrow in FIG X ₁₆ direction engaging member 103 along the guide hole 129.
At this time, the pushing portion 128 of the engaging member 103 is brought into contact with the outer side surface of the drawer operating portion 18 of the disc tray 3. As shown in FIG. 17, the engaging member 103 pushes the disc tray 3 and moves it from the reproduction position to the storage position. Then, the second rotating arm 106
Is first brought into contact with the position regulating protrusion 131.

Further, the first rotating arm 105 is
During 6 is rotated in the arrow X ₁₇ direction. Then, the second pivot arm 106, as shown in FIG. 18, against the elastic force of the linear member 125 is rotated in the arrow X ₁₄ direction, is provided adjacent to the position regulating protrusion 131 Rotational position regulating protrusion 13
It will be rotated until it is hit against 2. Engaging member 103 will be rotated slightly in FIG. 18 the arrow X ₁₄ direction. As a result, the engagement member 103 is in a state where neither the tray pull-in portion 127 nor the tray push-out portion 128 comes into contact with the pull-out operation portion 18 of the disk tray 3, and the engagement member 103 is located between the tray pull-in portion 127 and the tray push-out portion 128. Is provided with a clearance 133. That is, in the state of the disk tray 3 shown in FIG. 17 from the state of the disk tray 3 shown in FIG. 18, the position of the disk tray 3 is not changed. FIG.
In the state shown in (1), the optical disk reproducing mechanism including the upper chassis 101 moves up and down to the position of the disk tray 3 on which the predetermined optical disk 2 is placed.

At this time, when the optical disc reproducing mechanism is moved up and down, a clearance 133 is provided between the engaging member 103 and the pull-out operating portion 18 of the disc tray 3. Collision is prevented. In addition, when the disc tray 3 is stored in the disc tray storage device 1, a small variation occurs in the storage position. Since such a variation is provided with the clearance 133, the optical disc reproduction is performed. It does not affect the elevating operation of the mechanism.

Further, such a transport mechanism is provided with a position regulating mechanism for positioning the disk tray 3 at the reproduction position when the disk tray 3 is pulled into the reproduction position. The position regulating mechanism includes a position regulating protrusion 136 provided inside a lower chassis 141 constituting an optical disc reproducing mechanism 140 described later, and the elastic member 12 described above.
3 is provided. The disc tray 3 pulled into the reproducing position of the reproducing unit 52 is shown in FIGS.
As shown in (1), the optical disc playback mechanism abuts against a playback position regulating projection 136 provided on the inner surface in the depth direction. Specifically, the reproduction position regulating projection 136 is formed in a substantially columnar shape, and is engaged with the notch 19 provided on the front end side of the disc tray 3. As a result, the disc tray 3
Positioning in the transport direction at the reproduction position is performed.

As described above, the elastic body 123
As shown in FIGS. 14 and 16, a base 137 formed of a linear member having elasticity and formed in a coil shape is fitted and attached to a boss 121 provided on the first rotating arm 105. The elastic body 123 has two arms 138 and 139 extending from the base 137. Arm 1
38 and 139, the tip of which is the first rotating arm 105
Is locked by the locking portion provided in the first position. Such an arm 1
38 and 139 are urged in such a manner that their tips are close to each other. The support protrusion 124 facing the slit 122 is engaged from between the arms 138 and 139. Thus, the first rotating arm 105 is connected to the intermediate lever 112.

The elastic body 123 also functions as follows when the disc tray 3 is pulled into the reproducing position. That is, the disc tray 3 is pulled into the reproduction position by the transport mechanism, and the reproduction position regulating protrusion 136 is engaged with the notch 19 provided at the front edge of the disc tray 3. Thus, the disc tray 3 is positioned in FIG. 16 in the arrow X ₁₅ direction at the reproduction position is performed.

At this time, the first rotating arm 105 is
When and is rotated 19 in the arrow X ₁₈ direction, support protrusions 124 of the intermediate lever 112 is pressed against the arm 138 side, further, it is pushed in a direction away from the arm 139 against the elastic force become. Thereby, the engagement member 10
3, together with the force of pulling the disc tray 3 in the arrow X ₁₅ direction is generated, the disk tray 3, the force to the disc tray 3 is rotated occurs during 16 arrow X ₁₉ direction. Then, the disc tray 3 is moved to the position where the drop-out preventing portion 16b provided on the guide rail portion 15 is moved.
2 against the side wall. Thus, the disc tray 3 is positioned in a direction orthogonal to the transport direction at the reproduction position.

The notch 19 of the disc tray 3 with which the reproduction position regulating projection 136 is engaged is shown in FIGS.
As shown in FIG. Then, the reproduction position regulating protrusion 13 engaged with such a notch 19 is formed.
6 is formed in a columnar shape. Therefore, the position regulating protrusion 136 is always in contact with and supported at two points on the adjacent side edges of the V-shaped notch 19. Therefore, the reproduction position regulating protrusion 136 can steadily perform the positioning of the disc tray 3 in the transport direction and the direction perpendicular thereto.

In particular, the disc reproducing apparatus 50 is used for a vehicle, but since the disc tray 3 is steadily positioned at the reproducing position as described above, the vibration during the running of the automobile can be maintained even during the reproduction of the optical disc 2. Even when there is such a large vibration, the disc tray 3 is prevented from rattling. Therefore, it is possible to prevent the disc tray 3 from rattling during the reproduction of the optical disc 2 to cause an adverse effect such as a run-out on the optical disc 2 during the rotation operation. Also, when the disc tray 3 is pulled into the reproduction position, it is accurately positioned at the reproduction position.
Although the details will be described later, the centering portion of the disc table 142 of the optical disc reproducing mechanism 140 and the center hole of the optical disc 2 are accurately aligned. Mated.

[Explanation of Optical Disc Reproducing Mechanism] An optical disc reproducing mechanism 140 for rotating the optical disc 2 and reading out information signals recorded on the optical disc is, as shown in FIG. Upper chassis 10 having a disk clamper
1 is provided.

As shown in FIG. 20, the lower chassis 141 is provided with a disk table 142 rotatably on the insertion end side of the disk tray 3. The disk table 142 is provided with a convex centering part 143 fitted in the center hole of the optical disk 2 at the center thereof, and a disk holding part 144 for holding the periphery of the center hole of the optical disk 2 around the centering part 143. It is provided and has a substantially disk shape as a whole. Such a disk table 142 is provided with an optical disk drive motor 1 for rotating the optical disk 2 disposed on the lower surface of the lower chassis 141 on the insertion end side of the disk tray 3.
It is supported by 45 drive shafts.

Further, the lower chassis 141 is provided with an optical pickup opening 146 adjacent to the disk table 142 to allow the optical pickup to face outward from the disk table 142 side to the depth of the lower chassis 141. Have been. That is, the optical pickup opening 14
Reference numeral 6 is formed so that laser irradiation can be performed over the inner and outer circumferences of the optical disk 2. The optical pickup 14 exposed outward from the optical pickup opening 146
Reference numeral 7 is attached to the lower chassis 141 so as to be movable in parallel with the signal recording surface of the optical disk 2.

That is, the transport mechanism of the optical pickup 147 includes a motor 148 for the optical pickup and a thrust shaft 148 arranged along one longitudinal direction of the opening 146 for the optical pickup and rotated by the motor 148 for the optical pickup. A guide shaft 149 disposed along the other longitudinal direction of the optical pickup opening 146, and a pickup mounting portion 151 mounted on the thrust shaft 148 and the guide shaft 149 to hold the optical pickup 147. The optical pickup 147 is driven by the optical pickup motor 148 to drive the thrust shaft 14.
8 and the guide shaft 149, the optical pickup opening 146 is moved. The optical pickup 147 is provided with an optical block in which a light beam is made incident on an objective lens 152 disposed opposite to the signal recording surface of the optical disk 2 and reflected light from the objective lens 152 is made incident thereon. ing.

The upper chassis 101 is provided with the above-described transport mechanism for the disk tray 3 and also provided with a disk clamper 153 for holding the optical disk 2 in cooperation with the disk table 142. The disc clamper 153 is supported by a clamper support member 154, and faces the disc table side from a clamper opening 155 provided at the disc tray 3 insertion end of the upper chassis 101. The clamper support member 154 is rotatably supported and mounted on a clamper support member mounting portion 156 provided as an opening at one corner on the insertion end side of the disc tray 3. Also, the clamper support member 15
4, a torsion coil spring 157 is attached to an end portion of the upper chassis 101 on the side of attachment. The torsion coil spring 157 has a coil portion attached to a support shaft, a pair of arms extending from the coil portion is locked by a locking portion provided on the upper chassis 101, and the clamper supporting member 154 is connected to the reproducing portion 52. It is biased downward toward.

The clamper support member 154 is provided with a clamper rotation regulating shaft 158 at the other end. The clamper rotation restricting shaft 158 is slidably attached to a side surface of the upper chassis 101 by a third slider 16.
3 is engaged with the third cam hole 193. As a result, the clamper support member 154 moves the disc clamper 153 against the disc table 142 against the elastic force of the torsion coil spring 157.
The optical disk 2 is moved upward so as to be separated from the optical disk 2, and is moved downward so that the disk clamper 153 clamps the optical disk 2.

Further, first to third sliders 161 to 163 are slidably attached to three sides of the upper chassis 101 except for the insertion end side of the disk tray 3. More specifically, the first slider 161 is
It is slidably attached inside the side wall 164 on the inner side, opposite to the insertion end of the disc tray 3. On the first slider 161, a first first position regulating projection 165 for supporting and positioning the optical disc reproducing mechanism 140 on the chassis 60 faces outward from a guide opening 166 provided on the side wall 164. ing. Also, the first
A second position regulating projection 170 for supporting and positioning the optical disc reproducing mechanism 140 on the chassis 60 is also provided on the side edge of the slider 161 on the second slider 162 side.
Is provided. The first slider 161 has a side wall 1
An elongated guide hole 168 for slidably supporting the H.64 is provided. A guide pin (not shown) provided on the side wall 164 is engaged with the guide hole 168. The first slider 161 is supported by a support piece 169 provided on the side wall 164. And the first
The slider 161 is provided with a connection shaft 171 for connecting to the second slider 162 at an end adjacent to the second slider 162.

The second slider 162 is slidably mounted on the outer side of one side wall 172 parallel to the direction in which the disk tray 3 is conveyed. More specifically, the second slider 162 has guide holes 174 at both ends thereof for guiding the slide of the second slider 162 by engaging guide pins 173 provided on the side wall 172. . The side wall 172 is provided with a first lifting / lowering guide projection 175 and a second lifting / lowering guide projection 180 for guiding the optical disk reproducing mechanism 140 up / down operation. The first lifting guide protrusion 175 faces outward from an opening 176 provided in the second slider 162. Second slider 1
The first slider 161 has an end adjacent to the first slider 161.
A connection shaft 177 for connecting to the slider 161 is provided. Further, the second slider 162 is provided with a guide hole 179 provided in a stepwise shape so that a rotation regulating shaft 178 provided on the lower chassis 141 faces outward. Thus, when the lower chassis 141 is rotated to clamp the optical disk 2, the disk table 142 is rotated in a direction approaching the disk clamper 153, and the disk table 142 is rotated in a direction away from the disk table 142. Will be.

First slider 161 and second slider 1
62 is connected via a connection member 181. The connection member 181 has an elongated first shaft hole 182 in which the connection shaft 171 of the first slider 161 is engaged, and an elongated hole hole in which the connection shaft 177 of the second slider 162 is engaged. A second shaft hole 183 and a third shaft hole 184 that is fitted to a support shaft 185 provided at a rear corner portion of the upper chassis 101 and rotatably supports the connection member 181 are provided. Thus, the second slider 162 is slid in accordance with the sliding operation of the first slider 161.

The third slider 163 is slidably mounted on the outer side of the other side wall 186 parallel to the direction in which the disc tray 3 is conveyed. Specifically, a guide pin (not shown) provided on the side wall 186 is engaged with the third slider 163, and a guide hole 187 for guiding the slide of the third slider 163 is provided. Further, on the side wall 172, a third elevating guide protrusion 188 for guiding the elevating operation of the optical disc reproducing mechanism 140 is provided. The third lifting / lowering guide projection 188 faces outward from an opening 189 provided in the third slider 163.

The third slider 163 is provided with a guide hole 191 provided in a stepwise shape so that the rotation regulating shaft 190 provided on the lower chassis 141 faces outward.
Thereby, the guide hole 191 is connected to the second slider 1.
When the optical disc 2 is clamped by being rotated in cooperation with the guide hole 179 on the 62 side, the disc table 142 is clamped.
Is rotated in a direction approaching the disk clamper 153,
Further, the disk table 142 is rotated in a direction in which the disk table 142 is separated.

Further, the third slider 163 is provided with a third position regulating projection 192 for supporting and positioning the optical disc reproducing mechanism 140 on the chassis 60. In the vicinity of the third position regulating protrusion 192,
A rising piece is provided, and the rising piece is provided with a step-like cam hole 193 for rotating the disk clamper 153. The clamp hole 158 of the clamper support member 154 is engaged with the cam hole 193. The third slider 163 rotates the clamper support member 154 by sliding.

The third slider 163 and the first slider 161 are connected by the following link mechanism 196. Also, through this link mechanism 196,
The first to third sliders 161 to 163 are slid together. As shown in FIG. 21, the link mechanism 196 is driven by a transmission gear 197 by a loading motor 102.
Connecting member 1 for connecting the first slider 161 and the third slider 163 with the cam gear 109 rotated via the
98 and a connecting arm 199 for connecting the connecting member 198 to the cam gear 109. The rotation shaft 201 of the cam gear 109 is connected to the second transmission gear 110 that forms the drive transmission mechanism 104 on the upper chassis 101 through the shaft hole 202 of the connection member 198.

The connecting member 198 has, in addition to the shaft hole 202,
A first connection hole 203 and a second connection hole 204 are provided. The first connection hole 203 has the first slider 16
The first connection protrusion 205 provided on the side of the first third slider 163 is engaged, and the third connection hole 204 is provided with the third connection protrusion 204.
The second connecting projection 206 provided on the first slider 161 side of the slider 163 is engaged with the connecting member 198.
And the connection is established.

The connection arm 199 is provided with a shaft hole 207 at one end.
The support shaft 208 implanted at 01 is fitted and rotatably supported. The connection arm 199 is provided at the other end with a guide hole 211 with which a connection protrusion 209 provided on a surface of the connection member 198 on the connection arm 199 side is engaged. Further, the connection arm 199 is provided with an engagement pin 213 that is engaged with a spiral cam groove 212 formed on the cam gear 109 on the surface on the cam gear 109 side.

In the link mechanism 196, when the loading motor 102 is driven and the cam gear 109 is rotated, the connection arm 199 is rotated according to the cam groove 212. Then, the connection member 198 is connected to the connection arm 199.
, And the first slider 161 and the third slider 163 connected to the connection member 198 are slid. Also, the second slider 16
2 is connected to the first slider 161 via the connecting member 181 as described above, and thus slides with the first slider 161 and the third slider 163.

As shown in FIG. 20, the upper chassis 101 and the lower chassis 141 are formed by a shaft of the lower chassis 141 provided with supporting projections 214 provided on both side edges in the depth direction. By being fitted into the hole 215,
It is rotatably supported.

The first to third sliders 161 to 163 constituting such an optical disk reproducing mechanism 140 are slid as follows when the loading motor 102 is driven. First, a state where the optical disk 2 is not clamped by the disk clamper 153 and the disk table 142 will be described. 20 and as shown in FIG. 22 (A), the first slider 161 is in a state of being slid in the figure the arrow X ₂₀ direction which is the second slider 162 side.

Therefore, the second slider 162 connected to the first slider 161 via the connecting member 181
As shown in FIGS. 20 and 22 (B), in a state of being slid in the figure the arrow X ₂₁ direction which is the insertion end side of the disc tray 3. At this time, the rotation restricting shaft 178 of the lower chassis 141 is positioned at the lower step of the guide hole 179 provided in the second slider 162 in a stepwise manner.

[0096] The third slider 163, by the first slider 161 is slid in the arrow X ₂₀ direction, as shown in FIG. 20 and FIG. 22 (C), is slid in the arrow in FIG X ₂₂ direction It is in the state where it was. At this time, the lower chassis 1
The rotation control shaft 190 of the 41 is located at the lower step of the guide hole 191 formed in the step shape of the third slider 163. Therefore, the lower chassis 141 is provided with the rotation regulating shaft 1.
Guide holes 179, 1 formed in steps are 78 and 190.
By being located at the lower step of the upper part 91, it is rotated in a direction away from the upper chassis 101. In other words, the disk table 142 is moved in a direction away from the disk clamper 153.

At this time, the rotation restricting shaft 158 for the clamper is
As shown in FIG. 22C, the third slider 163 is located at the lower step of the cam hole 193 formed in a step shape. Thereby, the clamper support member 154
Is maintained in an upwardly rotated state against the elastic force of the torsion coil spring 157. That is, as shown in FIG. 22D, the clamper supporting member 154 is rotated upward in the figure, so that the disk table 142 is moved to a position that is substantially flush with the ceiling surface of the upper chassis 101. Evacuate until At the same time, the lower chassis 141 is rotated in a direction away from the upper chassis 101. Thereby, the disk table 14
A clearance is provided between the disc tray 2 and the disc clamper 153 so that the disc tray 3 can be transported between the storage position and the reproduction position.

Next, a state where the disk clamper 153 and the disk table 142 clamp the optical disk 2 will be described. The first slider 161, as shown in FIGS. 20 and 23 (A), from the state shown in FIG. 22 (A), by loading motor 102 is driven, is slid in the arrow in FIG X ₂₃ direction Will be.
Accordingly, the connecting member 181 is attached to the first slider 161.
Second slider 162 connected through is slid in the figure the arrow X ₂₄ direction, is in the state shown in FIG. 23 (B). At this time, the rotation regulating shaft 178 of the lower chassis 141
FIG. 23 shows the guide hole 179 provided in the second slider 162 in a stepwise manner from the lower step shown in FIG.
It is moved to the upper stage shown in FIG.

[0099] The third slider 163, by the first slider 161 is slid in the arrow X ₂₃ direction, as shown in FIG. 20 and FIG. 23 (C), is slid in the arrow in FIG X ₂₅ direction You. At this time, the rotation restricting shaft 190 of the lower chassis 141 is shown in FIG. 23C from the lower step shown in FIG. It is moved to the upper stage. Therefore, the lower chassis 141 includes the rotation restricting shafts 178, 190
Is positioned in the upper step of the guide holes 179 and 191 formed in a step-like shape, and thus is rotated in a direction approaching the upper chassis 101.

At this time, the rotation restricting shaft 158 for the clamper is
As shown in FIG. 23C, the cam hole 193 formed in the third slider 163 is moved from a lower step to an upper step in a stepped cam hole 193. As a result, the clamper support member 154 is turned downward by the elastic force of the torsion coil spring 157. That is, the clamper support member 154 is rotated downward in the figure, as shown in FIG. Thereby, the disk table 142
Lifts the optical disk 2 slightly and clamps the optical disk 2 in cooperation with the disk clamper 153. Then, the optical disk 2 is rotated by an optical disk drive motor 145 being driven.

Then, the optical pickup 147 is moved inside the optical pickup opening 146 by the transfer mechanism.
The light beam emitted from the optical block over the inner and outer circumferences of the optical disc 2 is
The signal is recorded on the signal recording surface. At the same time, the reflected light reflected from the signal recording surface enters the optical block via the objective lens 152 and is detected by a photodetector provided in the optical pickup 147. Thereby, the information signal recorded on the optical disk 2 is read.

By the way, inside the optical disk reproducing mechanism 140, as shown in FIG. 24, when the disk tray 3 is transported to the reproducing position, the optical disk 2 may drop off from the disk storage recess 11. The optical disc 2 is provided with a disc regulating mechanism 220 for preventing the above. As shown in FIG. 24, the disc regulating mechanism 220 includes an optical disc regulating member 221 that is rotatably mounted inside the optical disc reproducing mechanism 140. The optical disc regulating member 221 is provided with a regulating section 222 for holding the optical disc 2 and the disc tray 3 provided at one end.
A pivot 223 provided at the other end on the side where the regulating portion 222 is not provided; and an engaging portion 22 for maintaining the optical disc regulating member 221 inside the optical disc reproducing mechanism 140
4 is provided.

The regulating portion 222 is formed in a substantially C-shape as a whole, and has a first support portion 225 for supporting the front edge on the front side where the disc accommodating recess 11 of the disc tray 3 is provided and the peripheral edge of the optical disc 2, A second support portion 226 for holding the front edge of the back surface of the tray 3 and a third support portion 227 for supporting the front edge of the disc tray 3 are provided. The space between the first support portion 225 and the second support portion 226 is formed to be slightly larger than the thickness of the front edge of the disc tray 3. Further, the first support portion 225 prevents the optical disk 2 from dropping from the disk tray 3,
It has a length from the front edge of the disc tray 3 to above the peripheral edge of the optical disc 2 placed on the disc tray 3 and is formed longer than the second support portion 226. Further, the first support portion 225 and the second support portion 226 are provided with tapered portions whose respective ends are lowered outward. Thereby, the tapered portion makes it easier for the disc tray 3 to enter the regulating portion 222.

The pivot 223 is connected to the upper chassis 10.
1 the inner surface side is pivotally supported by the support shaft 228 formed by implanted to be rotatably supported by the 24 arrow X ₂₅ or the arrow X ₂₆ direction. The engaging portion 224 is provided so as to protrude from the base portion of the optical disc regulating member 221, and is constituted by a substantially L-shaped rising wall having the regulating portion 222 side opened.
An engagement protrusion 231 provided on the first slider 161 is engaged with the engagement portion 224.

On the other hand, the above-mentioned first slider 161 has a space 229 for a locking portion into which the engaging portion 224 enters. The space 229 is formed by bending the side edge of the first slider 161 in a convex shape. An engagement protrusion 231 that is locked by the engagement portion 224 is provided downward on the ceiling surface including a part of the first slider 161 that forms the space portion 229. Engaging projection 23
1 is a first slider 161 from the open side of the engagement portion 224.
Is entered by sliding, and is engaged with the engaging portion 224.

The optical disc regulating member 221 thus supported is connected to the lower chassis 141 by an elastic body 232 composed of a coil spring. That is, the elastic body 232
As shown in FIGS. 20 and 24, one end is locked by a locking portion 233 provided on the pivotal support 223 side of the optical disc regulating member 221, and the other end is fixed to the lower chassis 14.
1 It is locked by a locking pin 234 erected in the inner corner portion. Thus, the optical disc regulating member 221, the insertion direction of the disk tray 3 is biased in Figure 24 the arrow X ₂₅ direction in the opposite direction.

[0107] Such disc regulating mechanism 220, as shown in FIG. 27 (A), in the state the disc tray 3 is not in the playback position, the arrow X ₂₅ direction the optical disc regulating member 221 by the elastic force of the elastic body 232 Energized first
Position.

When the disc tray 3 is transported to the reproduction position, as shown in FIGS. 25 and 27B,
At this first position, the optical disc regulating member 221 abuts the front edge of the disc tray 3 against the third support portion 227 of the regulating section 222 and holds the front edges of the optical disc 2 and the disc tray 3 against the regulating section 222. It is in the state that was done. At this time, as described above, the first slider 161
Is in a state that is shifted in the arrow X ₂₀ direction in FIG 25.

Further, when the disc tray 3 is conveyed to the reproduction position by the above-described conveying mechanism, the optical disc regulating member 221 is moved to the third position of the regulating section 222 as shown in FIGS. 25 and 27C. The side edge of the disc tray 3 abuts against the support portion 227 and the optical disc 2
And in a state in which the front edge of the disc tray 3 is sandwiched, it is rotated in the same Figure 25 the insertion direction of the disc tray 3 in the arrow X ₂₆ direction, is in the second position indicated by a dotted line in FIG. 25.

Then, the first slider 161 moves to the position shown in FIG.
And 26 in the slide in the arrow X ₂₃ direction, as shown in FIG. 26, it is in a state where the engaging portion 224 and the engagement projections 231 are engaged. Optical disc regulating member 221, as shown in FIG. 26, the engaging protrusion 231 is retracted enters the engaging portion 224, is rotated further arrow X ₂₆ direction from the second position indicated by a dotted line in FIG. 25 26 and FIG.
It is set to the third position shown in FIG. 7 (D). As a result, the optical disc regulating member 221 is located at the innermost position of the optical disc reproducing mechanism 140 abutted against the side wall 164. At the same time, the first support portion 225 is retracted from the peripheral edge of the optical disc 2. As a result, the optical disc 2
As shown in (E), the disc tray 3 can be slightly lifted from the disc storage recess 11 and can be rotated.

When the disc regulating mechanism 220 conveys the disc tray 3 from the reproduction position to the storage position,
It is done as follows. That is, as shown in FIG. 26, the optical disc regulating member 221 by the first slider 161 is slid in Figure 26 the arrow X ₂₄ direction, the engagement between the engaging portion 224 and the engaging protrusion 231 is released by the elastic force of the elastic body 232, it is rotated in the arrow in FIG X ₂₅ direction, to return to the first position from the third position.

As shown in FIGS. 27 (B) to 27 (D), such a disc regulating mechanism 220 is used when the disc tray 3 is transported from the storage position to the reproduction position or when the disc tray 3 is transported from the reproduction position to the storage position. When the optical disc regulating member 221 moves from the first position to the third position or from the third position to the first position, the first support portion 225 moves from the front edge of the disc tray 3 to the disc storage of the disc tray 3. The optical disk 2 placed in the concave portion 11 is positioned over the periphery of the optical disk 2. Therefore, the optical disk 2
Is prevented from protruding from the disc storage recess 11 of the disc tray 3 during transport from the storage position to the reproduction position, and is prevented from dropping from the disc tray 3 in the optical disc reproduction mechanism 140.

The disc regulating mechanism 220 steadily regulates the position of the optical disc 2 held on the disc tray 3 even when the disc reproducing device 50 is placed in various postures such as a vertical position and a horizontal position. be able to. In addition, the disc regulating mechanism 220 can steadily regulate the position of the optical disc 2 from a large vibration applied to the disc reproducing device 50, such as a vibration generated while the automobile is running.

[Description of lifting mechanism of optical disk reproducing mechanism]
The optical disk reproducing mechanism 140 described in detail above is moved in the reproducing section 52 of the disk reproducing apparatus 50 to a height corresponding to the address of the disk tray 3 selected for reproducing the optical disk 2. As shown in FIGS. 11 and 28, this lifting mechanism is a first moving body that is moved via a transmission mechanism 62 and a coupling gear 63 by a drive motor 61 constituting a mounting / detaching mechanism of the above-described disc tray storage device 1. 64 and a second mobile unit 241. Then, the first moving body 64 and the second moving body 241 are moved in a direction orthogonal to the vertical direction of the optical disk reproducing mechanism 140, that is, in the same direction as the transport direction of the disk tray 3.

As shown in FIGS. 11 and 28, the first moving body 64 is formed substantially in an L-shape as a whole, and has a first It is attached along the side surface 142 and the bottom surface of the chassis 60. As described above, the first moving body 64 has a gear portion 64 on the side edge located on the bottom surface of the chassis 60.
a is provided and meshed with the connecting gear 63. Also,
The first moving body 64 is provided with an elongated guide hole 243 on a surface aligned with the first side surface 142.
The guide pin 244 on the chassis 60 side is engaged with and guided.

On the other hand, on the first side surface 242 of the chassis 60, first cam holes 245, 246, 247 provided in a direction perpendicular to the bottom surface of the chassis 60 are provided. The first cam hole 245 has the optical disc reproducing mechanism 14
The first lifting guide protrusion 175 on the second slider 162 side, which constitutes the first slider 162, is engaged and inserted. First cam hole 24
6 includes a second slider 1 of the optical disc reproducing mechanism 140.
The rotation regulating shaft 178 on the 62 side is engaged. In the first cam hole 247, a second lifting / lowering guide projection 180 on the side of the second slider 162 of the optical disk reproducing mechanism 140 is engaged and inserted. Thus, the first cam holes 245, 246,
247 is a first elevating guide protrusion 175, a rotation regulating shaft 1
The lifting operation of the optical disc reproducing mechanism 140 is guided by the engagement of the second lifting guide projections 78 and the second lifting guide projections 180.

The first moving body 64 has a first cam hole 2 corresponding to the first cam holes 245 and 247.
45, 247 and the second cam hole 2
48 and 249 are provided. This second cam hole 24
8 is engaged with a first lifting guide protrusion 175,
The second up / down guide projection 180 is engaged with the cam hole 249. The driving mechanism 61 drives the transmission mechanism 62 and the coupling gear 6 to drive the first moving body 64.
3 through FIG. 28 are moved in the arrow X ₅ or the arrow X ₆ direction.

The first moving body 64 is provided with a detection mechanism 251 for detecting the position of the optical disk reproducing mechanism 140, as shown in FIG. The detection mechanism 251 includes a movable terminal section 252 attached to the chassis 60 side and a fixed terminal section 253 attached to the first moving body 64 side. The fixed terminal portion 252 is provided to be inclined at a predetermined angle with respect to the moving direction of the first moving body 64, and a rail portion 254 formed of a concave groove is provided at the center thereof. The rail 254 is engaged with a movable terminal (not shown) that is provided on the movable terminal and moves in a direction perpendicular to the direction of movement of the first moving body 64. When the first moving body 64 is moved, the detection mechanism 251 moves the movable terminal in the direction orthogonal to the moving direction of the first moving body 64 according to the rail portion 254, so that the first moving body 64 is moved. 6
4, that is, the position of the optical disc reproducing mechanism 140 in the reproducing unit 52 (the address of the disc tray 3) is detected.

The second moving body 241 is similar to the one shown in FIGS.
As shown in the figure, the whole is formed in a substantially L-shape, and is attached along the other second side surface 156 of the chassis 60 parallel to the transport direction of the disk tray 3 and the bottom surface of the chassis 60. The second moving body 241 has a gear portion 241 a provided on a side edge located on the bottom surface of the chassis 60, and is meshed with the connection gear 63. Further, the first moving body 64 is provided with an elongated guide hole 257 on a surface aligned with the first side surface 142, and a guide pin 258 on the chassis 60 side is engaged with the guide hole 257 to be guided. .

On the other hand, the second side surface 256 of the chassis 60 is provided with a first cam hole 258 provided in a direction perpendicular to the bottom surface of the chassis 60. First cam hole 2
The third lifting / lowering guide projection 188 on the third slider 163 side constituting the optical disc reproducing mechanism 140 is engaged with and inserted into 58. The first cam hole 258 guides the elevating operation of the optical disc reproducing mechanism 140 when the third elevating guide protrusion 188 is engaged.

The second moving body 241 is provided with a second cam hole 259 corresponding to the first cam groove 258 and inclined at a predetermined angle with respect to the first cam groove 258. I have. A third elevating guide projection 188 is engaged with the second cam hole 259. Such a second moving body 2
41, by driving the motor 61 is driven, is moved in Fig. 28 arrow X ₅ or the arrow X ₆ direction via the transmission mechanism 62 and the connecting gear 63.

The lifting mechanism is moved in the same direction as the direction in which the disc tray 3 is conveyed by driving the drive motor 61 and rotating the coupling gear 63 via the transmission mechanism 62. Specifically, the first moving body 64 is connected to the connecting gear 6.
3 If is moved to rotated in Figure 28 the arrow X ₅ in one direction, the second moving body 241 is moved in the arrow X ₆ direction opposite direction to the moving direction of the first moving body 64 Will be. Further, On the contrary, when the first moving member 64 is connected a gear 63 is moved to rotated in Figure 28 the arrow X ₆ direction in the other direction, the second moving body 241, the first mobile 64 will be moved in the arrow X ₅ direction opposite direction to the moving direction of the. At this time, the optical disc reproducing mechanism 140 is configured such that the first lift guide protrusion 175, the second lift guide protrusion 180, and the third lift guide protrusion 188 have the second cam holes 248,
249, 259. Then, the optical disk reproducing mechanism 140 is moved up and down to a position corresponding to the address of the disk tray 3 selected by the user.

As shown in FIG. 28, the lifting mechanism is provided on a third side wall 263 adjacent to the first and second side walls 242 and 256 inside the reproducing portion 52 of the chassis 60. One positioning mechanism 261a, 261b and a second positioning mechanism 262 provided on the second side wall 256.
And First and second positioning mechanisms 261a,
61b and 262 position the optical disc reproducing mechanism 140 in the reproducing unit 52. First positioning mechanism 26
1a is a first slider 1 of the optical disc reproducing mechanism 140.
The first positioning mechanism 261 b is provided corresponding to the first position regulating protrusion 165 on the side of the first slider 61.
It is provided corresponding to the second position regulating projection 170 on the 61 side. The second positioning mechanism 262 is provided corresponding to the third position regulating projection 192 provided on the third slider 163 side of the optical disc reproducing mechanism 140.

First positioning mechanism 261a, 261b
Is a third side wall 263 as shown in FIGS.
a is provided with a hole in the optical disc reproducing mechanism 1.
First elevating guides 264a and 264b provided in the same direction as the elevating movement of the optical disc 40, and first slide guides 265a and 265b provided in a direction orthogonal to the elevating and moving direction of the optical disc reproducing mechanism 140; And first positioning recesses 266a and 266b provided upward from the first slide guides 265a and 265b. Then, the first slide guide section 26
5a, 265b and first positioning recesses 266a, 26
6b are provided corresponding to the number of sheets that can be stored in the disc tray storage device 1.

First lifting guides 264a, 264b
As shown in FIG. 29, when the optical disc reproducing mechanism 140 moves up and down, the first and second position regulating protrusions 165,
The passage 70 is provided corresponding to the vertical movement area of the optical disc reproducing mechanism 140. The first slide guides 265a and 265b move the optical disc reproducing mechanism 140 in a direction orthogonal to the direction in which the disc tray 3 is conveyed.
When the first slider 16 is
1 is provided corresponding to the region indicated by the arrow X ₂₃ direction in FIG 24. First positioning recesses 266a, 266b
Are provided in a substantially V shape, and when the first and second position regulating protrusions 165 and 170 are abutted, two peripheral edges of the first and second position regulating protrusions 165 and 170 are abutted. It is formed as follows.

The second positioning mechanism 262 has a hole formed in the second side wall 256 and is provided in the same direction as the direction in which the optical disk reproducing mechanism 140 moves up and down.
And the elevation guide portion 267, a second slide guide portion 268 provided towards in Fig. 28 arrow X ₆ direction, which is the discharge direction of the disc tray 3 in the direction orthogonal to the vertical movement direction of the optical disc playback mechanism 140, A second positioning recess 269 provided upward from the second slide guide 268. Then, the second slide guide portion 268 and the second positioning concave portion 269
Are provided corresponding to the number of sheets that can be stored in the disc tray storage device 1.

As shown in FIG. 29, when the optical disc reproducing mechanism 140 is moved up and down, the second elevating guide 267
It is a passage of the third position regulating projection 192 and is provided corresponding to the vertical movement area of the optical disc reproducing mechanism 140. The second slide guide portion 268 is used by the third slider 163 when the optical disk reproducing mechanism 140 clamps the optical disk 2 in the same direction as the transport direction of the disk tray 3.
There are provided corresponding to the region to move in Figure 24 the arrow X ₂₅ direction. The second positioning concave portion 269 is provided in a substantially V-shape, and is formed such that when the third position regulating protrusion 192 is abutted, two peripheral edges of the third position regulating protrusion 192 are abutted. ing.

[0128] lifting mechanism of the thus configured optical disk reproducing mechanism 140, when the drive motor 61 is driven to rotate the connection gear 63 in one direction, in the arrow X ₅ direction the first moving member 64 in FIG. 28 is moved, the second moving body 241 is moved in the arrow in FIG X ₆ direction, to move the optical disc playback mechanism 140 downward. The vertically moving mechanism, when the drive motor 61 is driven to rotate the connection gear 63 in the other direction, the first moving body 64 is moved in FIG. 28 the arrow X ₆ direction, the second moving body 241 is drawing When it moved in the arrow X ₅ direction to move the optical disc playback mechanism 140 upward. As a result, the first position restricting protrusion 165, the second position restricting protrusion 170, and the third position restricting protrusion 192 are connected to the first and second lifting guide portions 264a, 264b, 267.
Is moved up and down in FIG. As described above, the optical disc reproducing mechanism 140 is moved up and down by the elevating mechanism to the position corresponding to the address of the predetermined disc tray 3.

Then, the optical disk reproducing mechanism 140 pulls the predetermined disk tray 3 from the storage position to the reproduction position, and when the operation of clamping the optical disk 2 is started,
The first slider 161 as described above is slid in the arrow X ₂₀ direction, the third slider 16 linked thereto
3 also would be slid in the arrow X ₂₂ direction. Then, as shown in FIG. 29, the first position restricting protrusion 165 and the second position restricting protrusion 170 provided on the first slider 161 are moved from the first elevating guide portions 264a and 264b to the first slide guide. It is moved until it hits the end of the part 265a, 265b. Similarly, the third position restricting projection 192 provided on the third slider 163 is also moved from the second lifting / lowering guide portion 267 until it hits the end of the second slide guide portion 268.

[0130] Then, the lift mechanism moves the first moving member 64 in FIG. 28 in the arrow X ₆ direction, the second moving body 241
It is moved in the drawing the arrow X ₆ direction, the optical disc reproducing mechanism 1
Move 40 upward. Accordingly, the first position regulating protrusion 165, the second position regulating protrusion 170, and the third position regulating protrusion 192 are moved from the first and second slide guide portions 265a, 265b to the first and second positioning recesses. 2
66a, 266b, and 269. As a result, the optical disc reproducing mechanism 140 is positioned at a position corresponding to a predetermined address of the disc tray 3. Then, in this state, the optical disc reproducing mechanism 140
Reads the information signal by rotating the optical disc 2.

As shown in FIG. 29, such a lifting mechanism includes a first position regulating protrusion 165 and a second position regulating protrusion 1.
70 and the third position restricting projection 192 are brought into contact with the first and second positioning concave portions 266a, 266b, 269 at two points, so that accurate positioning can be performed. That is, the lifting mechanism causes the reproducing unit 52 to
The two points of the second position regulating protrusions 165 and 170 are abutted against the first positioning recesses 266a and 266b, whereby the positioning in the X-axis direction in FIG. 28 is performed, and the third position regulating protrusion 192 is moved to the second position regulating protrusion 192. 28 is positioned in the Y-axis direction in FIG. Also,
In the elevating mechanism, the first position regulating protrusion 165, the second position regulating protrusion 170, and the third position regulating protrusion 192 are abutted upwardly of the first and second position regulating recesses 266a, 266b, 269. Thus, positioning in the Z-axis direction in FIG. 28 is performed. Therefore, according to such an elevating mechanism, the optical disc reproducing mechanism 140 can be prevented from rattling even when a large vibration such as a vibration while the automobile is running is applied to the disc reproducing apparatus 50, and this rattling is reduced. It is also possible to prevent the optical disc from being shaken during the rotation operation.

It should be noted that the first and second positioning mechanisms 261a, 261b, and 262 described in detail above may be provided on at least one adjacent side surface, and may be provided on the first side surface. Yes, and the number of positioning mechanisms is not limited to this.

As described above, the present invention has been described in detail using the disk reproducing device 50. However, the present invention is not limited to this, and can be applied to a disk recording and / or reproducing device. Further, the present invention is not limited to the in-vehicle disk reproducing device as described above.

[0134]

According to the present invention, when the disc holding means is conveyed to the recording / reproducing position side by the conveying means, the front end side of the disc holding means and a part of the upper surface of the disc to be placed are located just before the recording / reproducing position. Since the disc is provided with the disc regulating means which is urged in the direction opposite to the conveying direction to be clamped, a part of the upper surface of the disc is clamped by the disc regulating means together with the front edge of the disc holding means, and the disc being transported is The storage position on the holding means is regulated, and it is prevented from falling off from the disk holding means. Specifically, the disc will be steadily held in the disc storage recess,
It is prevented that the disc holding means protrudes from the disc storage recess during the conveyance. In addition, this disc recording and / or
Alternatively, the playback device prevents the disk from being moved while the elastic body is in direct contact with the disk surface unlike the conventional disk control mechanism, thereby preventing the disk surface from being damaged. As described above, since the pressing force in the direction orthogonal to the moving direction is not applied to the disk holding means, the moving operation of the disk tray is performed in a stable state. Furthermore, the present invention provides that the device is placed vertically,
Even when the optical disk is placed in various postures such as a horizontal position, the position of the optical disk can be regulated steadily. Furthermore, according to the present invention, the position of the disk can be regulated steadily even when a large vibration is applied to the apparatus.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a disk tray storage device.

FIG. 2 is an overall perspective view of the disk tray as viewed from the front side.

FIG. 3 is an overall perspective view of the disc tray as viewed from the back.

FIG. 4 is a perspective view for explaining a tray guide provided on the inner wall of the tray housing.

FIG. 5 is a plan view of a main part of a disc tray and a tray guide unit.

6 is a cross-sectional view taken along the line AA shown in FIG. 5, and more specifically, a cross-sectional view of a tray guide portion and a guide rail portion fitted to the tray guide portion.

FIG. 7 is a diagram for explaining a state in which a first protrusion and a second protrusion of the disc tray are in contact with each other.

FIG. 8 is a plan view for explaining a relationship between an optical disk at a reproduction position and a second protrusion of a disk tray.

FIG. 9 is a plan view for explaining an operation of removing the disk tray from the tray housing.

FIG. 10 is an external perspective view of a disc reproducing device and a disc tray storage device.

FIG. 11 is a plan view of the chassis of the disc reproducing apparatus viewed from the bottom side, for explaining the attachment / detachment mechanism of the disc tray storage device.

FIG. 12 is a plan view for explaining an ejection mechanism of a disc tray storage device provided on a chassis ceiling of the disc reproducing device.

FIG. 13 is a perspective view of the disc tray storage device as viewed from the other main surface side.

FIG. 14 is an exploded perspective view of a transport mechanism.

FIG. 15 is a plan view showing a time when the transport mechanism starts drawing the disk tray from the storage position to the reproduction position.

FIG. 16 is a plan view showing a state in which the transport mechanism draws the disc tray to the reproduction position.

FIG. 17 is a plan view of a main part around an engagement member in a first state in which the transport mechanism has pushed the disc tray from the reproduction position to the storage position.

FIG. 18 is a plan view of a main part around an engagement member in a second state in which the transport mechanism has pushed the disc tray from the reproduction position to the storage position.

FIG. 19 is a plan view conceptually showing a transport mechanism used to explain the positioning of the disc tray at the reproduction position.

FIG. 20 is an exploded perspective view of the optical disk reproducing mechanism.

FIG. 21 is an exploded perspective view of a link mechanism that connects a first slider and a third slider.

FIGS. 22A and 22B are side views of the optical disk reproducing mechanism viewed from the first slider side when the optical disk is not clamped, and FIG. 22B is a side view of the optical disk reproducing mechanism viewed from the second slider side; It is a side view of a mechanism, (C)
FIG. 9 is a side view of the optical disk reproducing mechanism viewed from the third slider side, and FIG. 10D is a side view of the optical disk reproducing mechanism viewed from the front side.

FIG. 23 shows a state in which the optical disc is clamped.
(A) is a side view of the optical disk reproducing mechanism viewed from the first slider side, (B) is a side view of the optical disk reproducing mechanism viewed from the second slider side, and (C) is a side view of the optical disk reproducing mechanism. 3
3D is a side view of the optical disk reproducing mechanism viewed from the slider side, and FIG. 4D is a side view of the optical disk reproducing mechanism viewed from the front side.

FIG. 24 is an exploded perspective view for explaining a disc regulating mechanism of the optical disc.

FIG. 25 is a plan view showing a first position where the disc tray enters the disc regulating mechanism.

FIG. 26 is a plan view showing a state of a disc regulating mechanism during reproduction of an optical disc (third position).

FIG. 27 is a diagram showing a state of the optical disk and the disk tray regulated by the optical disk regulating member. More specifically, FIG. 27A shows a state where the disk tray is not approaching the disk regulating mechanism at the first position. FIG. 4B is a side view showing a state where the optical disc and the disc tray are held by the restricting portion at the first position, and FIG. 4C is a side view showing the restricting portion at the second position. It is a side view, (D) is a side view of the regulation part in the 3rd position, (E) is a side view of the regulation part when an optical disk is clamped.

FIG. 28 is an overall perspective view of a disc reproducing apparatus used for explaining a lifting mechanism of the optical disc reproducing mechanism.

FIG. 29 is a diagram for explaining a position restricting portion provided on a chassis of the optical disc reproducing mechanism.

[Explanation of symbols]

1 disk tray storage device, 2 optical disks, 3 disk trays, 4 disk tray storage sections, 11 disk storage recesses, 13 bottom opening, 15 guide rail section, 16 drop-off prevention section, 17 gap ensuring projection, 18 pull-out operation section, 19 Notch, 21 locking portion, 23 first projection, 24 second projection, 31 outer housing, 32
Tray guide portion, 35 Tray insertion / removal opening portion, 36 First side surface, 37 Second side surface, 38 Pullout operation cutout portion, 42 First support portion, 43 Second support portion, 44
Disc restricting portion, 46 engaging portion, 50 disc reproducing device, 51 loading portion, 52 reproducing portion, 53 mounting / dismounting opening portion, 61 drive motor, 64 first moving body, 69 lock lever, 71 detection lever, 72 lock pin , 74
Contraction spring, 79 ejection mechanism, 101 upper chassis,
102 loading motor, 103 engaging member, 1
05 first pivot lever, 106 second pivot lever,
109 cam gear, 123 elastic body, 124 support projection, 125 linear member, 131 position regulating projection, 132
Rotation restricting protrusion, 136 Position restricting protrusion, 140 Optical disk reproducing mechanism, 141 Lower chassis 141, 142
Disk table, 147 Optical pickup, 153
Disc clamper, 154 Clamper support member, 16
1 First slider, 162 Second slider, 163
Third slider, 165 First position regulating protrusion, 170
A second position regulating protrusion, 175 a first elevating guide protrusion, 178 a rotation regulating shaft, 180 a second elevating guide shaft, 188 a third elevating guide shaft, 192 a third position regulating protrusion, a 220 disk regulating mechanism, 221 optical disk regulating member, 222 regulating section, 231 engaging projection, 2
32 elastic body, 234 locking pin, 241 second moving body, 245, 246, 247 first cam hole, 248,
249 Second cam hole, 258 First cam hole, 259
Second cam hole, 261 first positioning mechanism, 262
A second positioning mechanism, 264 a first elevating guide unit,
265 first slide guide, 266 first positioning recess, 267 second elevating guide, 268 second slide guide, 269 second positioning recess

Claims (4)

[Claims] 1. A disk holding means for moving a disk according to a guide means and for holding a disk between a disk replacement position at which a disk is replaced and a recording / reproducing position at which recording and / or reproduction of the disk is performed; Transport means for transporting the disk holding means between the disk exchange position and the recording / reproducing position; and when the disk holding means is transported to the recording / reproducing position side by the transport means, the disk holding means is located just before the recording / reproducing position. A disc regulating means urged in a direction opposite to the transport direction to clamp the front end of the means and a part of the upper surface of the disc to be placed. 2. The disk according to claim 1, wherein said disk restricting means is evacuated from an upper surface of said disk at said recording / reproducing position in conjunction with an operation of holding said disk by said disk driving means. Recording and / or playback device. A plurality of disk holding means for holding a disk; a storage means for storing the plurality of disk holding means in a stacked state in parallel with each other; A guide means provided in the storage means so as to be conveyed orthogonally to the direction, a storage position in which the disk holding means is stored in the storage means, and a recording / reproduction position in which recording and / or reproduction of a disk is performed. Transport means for transporting the disk holding means in accordance with the guide means, and when the disk holding means is transported to the recording / reproducing position side by the transport means, the front end side of the disk holding means and the loading position are located just before the recording / reproducing position. Disc control means biased in a direction opposite to the transport direction for nipping a part of the upper surface of the disc to be placed. Beauty / or reproducing apparatus. 4. The disk according to claim 3, wherein said disk restricting means escapes from an upper surface of said disk at said recording / reproducing position in conjunction with an operation of holding said disk by said disk driving means. Recording and / or playback device.