JPH06259914A - Disk tray and disk device using same - Google Patents

Abstract

PURPOSE:To provide a disk tray and a disk device capable of surely holding a small diameter disk on a tray and simply releasing this holding. CONSTITUTION:A coming-out preventing member 30 capable of rotating upward around a shaft 31b is provided on a tray 20 where a single compact disk SCD of 8cm diameter is installed on a housing recessed part 21. This coming-out preventing member 30 is energized clockwise by a spring a controlling piece 31d at its tip part is placed opposed to the upper part of the housing recessed part 21 and the pulling-out of the disk SCD is prevented. When the tray 20 is installed on the chassis 41 of a disk driving section, the pulling-out preventing member 30 is lifted by the pressing projection 45b of a rocking arm 45. At this time, the disk SCD is clamped on a turntable in the condition that it is raised from the bottom surface 21c of the housing recessed part 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc tray which is pulled out from a disc magazine and has a disc retaining function, and a disc device in which the disc tray is used.

[0002]

2. Description of the Related Art In a disc changer type disc device used for mounting on a vehicle, a magazine for storing a plurality of discs is loaded, and the discs are selected from the magazine to be reproduced and driven. 15, 16 and 17 show a tray type magazine used in the above disk device. 15 is a perspective view of the magazine as seen from diagonally above, FIG. 16 is a perspective view showing the internal structure of the magazine shown in FIG. 15, and FIG. 17 is a front view of the magazine. In the magazine DM shown in each drawing, a plurality of steps M6 are formed on the inner surfaces of both side walls, and sliding grooves M1 and M1 are formed between the projections M6 and M6. These sliding grooves M1, M1
The tray T is slidably housed so that it can be pulled out forward from the take-out end M2.

As shown in FIG. 16, a circular storage recess T1 on which a compact disc CD having a diameter of 12 cm is placed is formed on the upper surface of each tray T. This storage recess T
A U-shaped center hole T2 is cut out at the bottom of the front plate 1, and a partially circular recess T4 continuous with the center hole T2 is formed downward on the lower surface of the front plate T3. When this magazine DM is inserted into a disc device having a disc changer function, one of the stored trays T is selected and pulled out, and the compact disc CD placed on it is turned by the disc drive unit. It is slightly lifted upward by a table (not shown).
As a result, the compact disc CD separates from the storage recess T1 of the tray T that has been pulled out, and the storage recess T1 and
The tray T is located on the lower surface of the tray T and is rotated between the lower surface of the tray T and the partially circular recess T4.

In this type of magazine DM, as shown in FIG. 17, when each tray T is stored, the peripheral edge of the compact disc CD placed on each tray T is located between the grooves M1. It is designed to be clamped together with the tray T. Therefore, even if the magazine DM removed from the disc device is vertically oriented or shaken, the compact disc CD does not jump out from the storage recess T1 of the tray T.

On the other hand, the diameter of a music disc is 12
In addition to the cm compact disc CD, there is a single compact disc having a diameter of 8 cm. When trying to reproduce this single compact disc in a disc changer type disc device, as shown in FIG.
It is not possible to use the tray T for a 12 cm disc shown in 6 or the like. Therefore, when reproducing a single compact disc, the tray 1 for 8 cm disc shown in FIG. 18 is used, and this tray 1 is inserted into the magazine DM instead of the tray T.

A tray 1 shown in FIG. 18 has a small-diameter storage recess 2 formed on the upper surface thereof, and a single compact disc SCD (hereinafter referred to as disc SCD) is stored in the storage recess 2. However, this tray 1 is the magazine DM
When the disc is stored inside, the disc has a small diameter,
The peripheral edge of the disc SCD cannot be sandwiched in the sliding groove M1 on the inner surface of the side wall of the magazine, and the disc SCD may pop out from the storage recess 2 of the tray 1 when carrying the magazine DM. Therefore, in the tray 1 shown in FIG. 18, a pair of claw members 3 for preventing the disc SCD from coming off is provided on the peripheral edge of the storage recess 2. Each of the claw members 3 is rotatably attached in parallel with the upper surface 1a of the tray 1 about the shaft 3a, and is biased upward by the torsion spring 4 in the protruding direction toward the storage recess 2. In the case of the tray 1 having this structure, the pair of claw members 3 abut on the disk SCD placed in the storage recess 2,
It is possible to prevent the protrusion from the storage recess 2.

On the other hand, on the side of the disk device that uses the tray 1, a pawl moving mechanism (not shown) for rotating the pawl member 3 provided on the tray 1 in the counterclockwise direction is provided, and when performing a reproducing operation, The pawl moving mechanism rotates the pawl member 3 to a position where it is disengaged from the storage recess 2, and in that state, the disk SCD is slightly lifted upward by the turntable and rotationally driven.

[0008]

In the tray 1 having the structure shown in FIG. 18, the claw member 3 for pressing the disk SCD rotates in parallel with the upper surface 1a of the tray 1. Therefore, the claw moving mechanism provided on the disk device side must move the claw member 3 along the upper surface 1a of the tray 1 to the position of the claw member 3 to complicate the mechanical structure. Become. Further, in order to accommodate the insertion of a 12 cm disc, it is necessary to move this claw moving mechanism to a position where it is removed from the tray T for a 12 cm disc. Further, it is possible to adopt a structure in which levers for rotating the claw members 3, 3 are projected from both side end portions 1b, 1b of the tray 1, but in this case, the structure of the tray 1 becomes very complicated.

If the pawl moving mechanism does not operate properly when the tray 1 is installed in the disc device, the disc may be left in a state where the pawl member 3 is not completely disengaged from above the storage recess 2. The SCD may be lifted by the turntable. In such a case, the disc SCD is pressed against the claw member 3 and the disc SCD is damaged, or an excessive load is applied to the turntable side.

When the disc SCD is being lifted from the storage recess 2 and the pawl member 3 that has been moved to the outside of the storage recess 2 returns to above the storage recess 2, the reproducing operation is terminated. The disc SCD cannot be returned into the storage recess 2. In this case, when the tray 1 is returned into the magazine DM, the disc SCD is caught by the mechanism portion and is in the mechanism locked state.

Therefore, the present invention provides a disc tray using a disc tray having a disc retaining function, which can surely perform disc retaining and disc returning operations, and a disc device using this tray. With the goal.

[0012]

DISCLOSURE OF THE INVENTION According to the present invention, in a disc tray that moves between a position away from the disc drive unit and a position facing the disc drive unit, a recess for mounting the disc is formed on the tray surface. Further, a retaining member for retaining the disc installed in the recess is provided, and the retaining member is movably supported in a direction away from the tray surface. .

Further, in the disc device using the disc tray, when the disc is supported in a driven state, there is provided a pressing member for pushing the retaining member in a direction away from the tray surface. Is.

[0014]

In the first means, the disc is retained by the retaining member when the disc is accommodated in the recess, but the retaining member moves in the direction away from the surface of the tray. , The disk is ready to rotate. When the drive of the disk is finished,
By lowering the retaining member as it is, the disc is retained again. By operating the retaining member in the direction away from the tray surface in this manner, the retaining action of the disc and the subsequent returning operation can be performed without difficulty.

The second means has a simple structure in which a pressing member for pressing the retaining member is provided on the disc device side, and when the tray is installed, the retaining member can be securely attached from the surface of the tray. Can be lifted to.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 is a perspective view showing a tray according to an embodiment of the present invention, FIG. 2 is a partially exploded perspective view of the tray shown in FIG. 1, FIG.
4 and 5 are a sectional view taken along the line III-III, a sectional view taken along the line IV-IV, and a sectional view taken along the line VV in FIG. 1, respectively. The tray 20 shown in FIG. 1 is accommodated in the magazine DM used in the disc apparatus of the disc changer system shown in FIGS. 15 to 17, and the disc SCD having a diameter of 8 cm is installed therein.

The tray 20 shown in FIG. 1 is a plate-shaped body made of synthetic resin. The surface of the tray has a disk S with a diameter of 8 cm.
A circular storage recess 21 on which a CD is placed is formed. A U-shaped center hole 21a is cut out at the bottom of the storage recess 21, and a partially circular recess 22a continuous with the center hole 21a is formed downward on the lower surface of the front plate 22. ing. Further, as shown in FIGS. 3, 4, and 5, the outer peripheral wall surface 21b of the storage recess 21 is a tapered surface that spreads upward from the bottom surface 21c of the storage recess 21. On both sides of the storage recess 21, there are provided retaining members 30 for preventing the disc SCD from protruding from the storage recess 21. The pair of retaining members 30, 30 are symmetrical with each other.

FIG. 2 shows one retaining member 30. The retainer member 30 has shafts 31b and 31b, which serve as rotation fulcrums, project from both sides of a plate-shaped main body 31. A torsion spring 32 is attached between the shafts 31b and 31b and the tray 20, and the elastic force of the torsion spring 32 causes the main body 31 of the retaining member 30 to come into pressure contact with the tray 20 (in FIG. 3 and the like). (Clockwise). A side edge 31c of the main body 31 facing the storage recess 21 has an arc shape with a predetermined curvature, and a pair of restriction pieces 31d, 3 are provided on both sides of the side edge 31c.
1d is formed. As shown in FIG. 3, the pair of restricting pieces 31d, 31d face above the peripheral edge of the disc SCD installed in the storage recess 21, thereby preventing the disc SCD from coming off. In addition, in FIG.
Although 1d and 31d are opposed to the disc SCD with a slight clearance, the disc SCD may be pressed by the restricting pieces 31d and 31d.

A restricting projection 31e is formed at the lower part of each restricting piece 31d, 31d so as to project downward. As shown in FIG. 3, the restriction protrusion 31e faces the outer peripheral end surface of the disc SCD housed in the housing recess 21.
Further, as shown in FIG. 8, when the retaining member 30 is rotated upward by a certain angle when the disc is driven for reproduction, the restriction protrusion 31e and the side wall 21b of the storage recess 21 overlap each other by a dimension δ in the vertical direction in the drawing. As a result, in the state of FIG. 8, the disc SCD is prevented from being sandwiched between the upper surface of the tray 20 and the retaining member 30. A plate piece 31a is formed so as to project from the other side end of the main body 31. Further, as shown in FIG. 2, a biasing portion 31f for turning the retaining member 30 upward is formed on the lower surface of the right end portion of the main body portion 31 in the figure.

On the other hand, on both sides of the storage recess 21 of the tray 20, there are support recesses 23 to which the retaining members 30 are attached.
Are formed. As shown in FIG. 2, this support recess 2
Reference numeral 3 denotes a bottomed groove formed in the outer peripheral position of the side wall 21b of the storage recess 21 in which the disc SCD is stored. Shaft holes 23b, 23b for rotatably supporting the shafts 31b, 31b provided on the retaining member 30 are formed on both side surfaces 23a, 23a of the support recess 23, respectively. The torsion spring 32 is interposed between the retaining member 30 and the side surfaces 23a, 23a.

From the edge of the support recess 23 to the inside of the accommodating recess 21, there are formed holes 23c, 23c which penetrate vertically, and the restriction protrusions 31e, 31 of the retaining member 30 are formed.
e is inserted into these holes 23c, 23c. An identification hole 23e is formed at a corner of the support recess 23, and the biasing portion 31f of the retaining member 30 is exposed from the identification hole 23e to the lower surface of the tray (see FIG. 5). Further, the support recess 23 is formed with a hole 23d penetrating up and down.
3d communicates with the notch 20a on the side of the tray 20, and a connecting piece 20b is provided above the communicating portion. As shown in FIG. 4, the plate piece 31a provided on the retaining member 30 extends from the hole 23d through the lower surface of the connecting piece 20b to the cutout portion 20a.

When the tray 20 is stored in the magazine DM shown in FIGS. 15 to 17, both end portions of the tray 20 are slidably inserted into the sliding grooves M1 on the inner surface of the side wall of the magazine. At this time, as shown in FIG. 4, the plate piece 31a of the retaining member 30 enters the sliding groove M1 and is sandwiched between the protrusions M6 and M6. As a result, the retaining member 3
0 is prevented from rotating counterclockwise in FIG.
As shown in FIG. 3, the restricting piece 31d remains facing the upper surface of the disc SCD, and the disc SCD is prevented from coming out of the storage recess 21 due to an impact in the magazine DM.

When the tray 20 is pulled out from the magazine DM, the retaining member 30 is urged in the clockwise direction in FIG. 3 and the like by the urging force of the torsion spring 32, but the tray 20 shown in FIGS. By pressing the plate piece 31a in the side cutout 20a with a finger,
The retaining member 30 can be rotated counterclockwise in FIG. As a result, the restriction piece 31d is removed from above the storage recess 21, and the disc SC in the storage recess 21
It becomes possible to install, take out or replace D.
Further, as shown in FIG. 1, a pentagonal holding protrusion 20c is formed at the end of the tray 20 on the insertion side of the magazine DM. When the tray 20 is inserted into the magazine DM,
The holding protrusion 20c is held by a leaf spring or the like in the magazine DM, so that the tray 20 is prevented from coming off from the magazine DM.

Next, the internal structure of the disc changer type disc device in which the magazine DM in which the tray 20 is stored is loaded will be described. Figure 6 is a magazine DM
FIG. 7 is a plan view showing the structure of a disk drive unit 40 in the disk device in which the tray 20 pulled out from the disk drive unit is installed, FIG. 7 is its front view, and FIG. 10 is a front view showing the overall structure of the disk drive unit. The disk drive unit 40 is provided with a U-shaped chassis 41 having a downward shape from the front side, and an upper surface 41a of the chassis 41 serves as a mounting surface of the tray 20. Further, as shown in FIG. 10, a clamp chassis 51 is provided above the chassis 41.

The magazine DM is the chassis 4 in FIG.
1 is located above the figure. In the selection operation of the tray in the magazine DM, the chassis 41 and the clamp chassis 51 are used.
And move vertically while maintaining a predetermined distance, and stop at a position facing the selected tray. Then, the selected tray is pulled out from the magazine DM by a pull-out mechanism (not shown). Figure 6 shows a disk SCD with a diameter of 8 cm.
The tray 20 on which is placed is selected and pulled out. When the tray is pulled out, the chassis 41
And the clamp chassis 51. Then, with the clamp chassis 51 stopped, the chassis 41 is shown in FIG.
10, the disc on the tray 20 (for example, the disc SCD) moves upward in FIG.
It is installed in a.

The upper surface 41a of the chassis 41 has a diameter 8c.
A turntable 42 for rotating a disc SCD of m or a disc having a diameter of 12 cm (hereinafter referred to as “CD”) is arranged. Further, a motor M that rotationally drives the turntable 42 is provided on the lower surface side of the chassis 41. An optical pickup P and a mechanism for moving the optical pickup P are arranged on the lower surface side.
On both sides of the lower position of the chassis 41 shown in FIG. 6,
Notches 43 and 44 are formed. Also, chassis 4
1 includes notches 4 on both sides of the turntable 42.
8, 48 are formed. Upper surface 41a of chassis 41
With the tray 20 installed in the
When 0 rotates as shown in FIGS. 8 and 9, the plate piece 31a shown in FIG. 4 rotates and protrudes below the tray 20, but the plate piece 31a enters the notches 48, 48. Therefore, it does not interfere with the chassis 41.

A pair of rocking arms 45, 4 as pressing members for pushing up the urging portion 31f formed on the retaining member 30 from the lower side to the notch portions 43, 44 are provided.
5 are arranged. The swing arm 45 includes a shaft 46 protruding from a support portion 47 provided on the lower surface of the chassis 41.
It is supported so that it can freely swing with respect to. Protrusions 45a are formed upward on the left and right outer sides of the pair of swing arms 45, and pressing protrusions 45b are formed on the opposite center sides.
Are formed respectively. Upper surface 41a of chassis 41
When the tray 20 is installed in the tray 20, the urging portion 31f on the lower surface of the retaining member 30 causes the pressing protrusion 4 of the swing arm 45 to move.
It is adapted to face above 5b. In addition, FIG.
As shown in FIG.
A clamper support plate 52 is provided, and this clamper support plate 5
A clamper 53 is supported on the second unit 2.

Next, the operation when the tray 20 on which the disk SCD having a diameter of 8 cm is placed is selected and pulled out from the magazine DM will be described. Magazine DM
In the state where the tray 20 is accommodated in the inside, as shown in FIG. 4, the side end portion of the tray 20 is slidably inserted into the sliding groove M1 formed in the magazine, and at this time, the retaining member 30 The plate piece 31a is also sandwiched in the sliding groove M1. Therefore, the retaining member 30 is in a state in which the main body portion 31 is attached to the inside of the support recess 23 of the tray 20. Therefore, the regulating piece 31d faces the edge of the disc SCD in the storage recess 21 of the tray 20 so as to prevent the disc SCD from coming off.

The tray 20 is selected and pulled out from the magazine DM, and the chassis 41 of the disk drive unit 40 is selected.
And the clamp chassis 51. In this embodiment, similarly to the case shown in FIG. 16, the tray 20 is stopped between the chassis 41 and the clamp chassis 51 with the tray 20 partially left in the magazine DM. At this time, the plate piece 31a of the retaining member 30 has the sliding groove M in the magazine DM.
1, the plate piece 31a is cut away from the cutouts 48, 48 shown in FIG.
Move above. When the tray 20 is pulled into the disk drive unit 40, the lower surface of the tray 20 and the upper surface 41a of the chassis 41 are separated. Tray 20 at this time
The retaining member 30 is in a free state, and the retaining member 30 is biased in the clockwise direction in FIG. 3 by the elastic force of the torsion spring 32, and the disc SCD is retained by the restricting piece 31d.

Next, the chassis 41 rises and the tray 20 is set on the upper surface 41a of the chassis 41. In the process of raising the chassis 41, one protrusion 4 of the swing arm 45 is formed.
5a hits the lower surface of the tray 20. Further chassis 41
When is raised, the swing arm 45 is biased to the lower surface of the tray 20. The swing arm 45 located on the left side in the figure in FIG. 7 is rotated counterclockwise, and the swing arm 45 on the right side in the figure is rotated clockwise. At this time, as shown in FIG. 8, the retaining member 30 is removed by the pressing protrusion 45b of the swing arm 45.
The urging portion 31f is pushed upward, and thereby the restriction piece 31d of the retaining member 30 is lifted so as to be separated from the tray surface.

Similarly, in the process of raising the chassis 41, the disk SCD stored in the storage recess 21 of the tray 20.
The turntable 42 contacts the center hole of the disk SC
D is lifted from the bottom surface 21c of the storage recess 21.
Then, as shown in FIG. 10, the disc SCD is clamped by the turntable 42 and the clamper 53. At this time, the restriction piece 31d of the retaining member 30 is separated from the disc SCD as shown in FIG. 9, and the disc SCD is rotationally driven without any interference. At this time,
As shown in FIG. 0, the clamp chassis 51 faces above the retaining member 30. Therefore, even if the retaining member 30 is separated from the pressing protrusion 45b of the swing arm 45 due to vibration or the like, the retaining member 30 is prevented. The tip of 30 hits the lower surface of the clamp chassis 51 in the figure and is prevented from rotating at a large angle.

Next, when the reproducing operation of the disc SCD is completed, the chassis 41 is lowered. At this time, the clamp of the disc SCD is released by the clamper 53 and the disc SCD is returned into the storage recess 21 of the tray 20. At this time, the pressing protrusion 45b of the swing arm 45 is lowered as the chassis 41 is lowered. The lifting force on the urging portion 31f is released, and the retaining member 30 is returned to the inside of the support recess 23 of the tray 20 by the urging force of the torsion spring 32.

It is conceivable that the disk SCD may move up and down, left and right in the process of returning the disk SCD into the storage recess 21 due to the shock when the clamp is released, or the vibration or shock from the outside. However, the outer periphery of the disc SCD is regulated by two regulating protrusions 31e on each of the left and right retaining members 30, 30.
Since two left and right restricting pieces 31d face each other above the CD, the disc SCD descends with the top, bottom, left, and right being regulated, and the disc SCD does not come off above the retaining member 30. . In particular, as shown in FIG. 9, even if the retaining member 30 is rotated to a certain angle, the regulating projection 31e and the side wall 21b of the storage recess 21 intersect with each other as indicated by δ. Is reliably regulated in the disc plane direction by the regulation protrusion 31e, and for example, the disc SC is provided between the upper surface of the tray and the retaining member 30.
D is not caught either.

Further, when the disc clamp is released as described above, the disc SCD is regulated from above, below, left and right at four places by the regulation projection 31e and the regulation piece 31d, so that, for example, the disc device is horizontal as shown in FIG. The disc SCD will not come off the tray 20 even if the disc SCD is used in a vertical posture instead of the posture.

By the way, the magazine DM has a diameter of 8c.
Not only the tray 20 for the disc SCD of m, but also the tray 60 on which the disc CD having a diameter of 12 cm is installed as shown in FIG. Therefore, a case where the tray 60 is pulled out from the magazine DM and loaded in the disc drive unit 40 will be described with reference to FIGS. 12 and 13. The outer shape of the tray 60 for a disc CD having a diameter of 12 cm shown in FIG. 11 is compatible with the tray 20 shown in FIG. On the upper surface of the tray 60, a circular storage recess 61 on which the disc CD is placed is formed. In addition, at the bottom of the storage recess 61,
The U-shaped central hole 61a is formed by cutting out, and the front plate 6 is formed.
On the lower surface of No. 2, a partially circular concave portion 62a continuous with the central hole 61a is formed downward.

Identification holes 63, 63 are formed at the edge of the storage recess 61. This identification hole 63, 63
2 and the identification hole 2 on the tray 20 of FIG.
This is different from the position where 3e is formed, and as shown in FIGS. 12 and 13, when the tray 60 is pulled out to the disk drive unit 40, the swing arms 45, 45 provided on the chassis 41. Protrusions 45 located on the left and right outer sides of the
The identification holes 63, 63 are formed at positions facing the a, 45a. When the tray 60 is pulled out between the chassis 41 and the clamp chassis 51 and the chassis 41 is lifted and the tray 60 is installed on the upper surface 41a thereof, as shown in FIGS. The pressing protrusion 45b contacts the lower surface of the tray 60, the swing arm 45 located on the left side in FIG. 12 rotates clockwise, and the swing arm 45 on the right side rotates counterclockwise. Then, as shown in FIG. 13, the protrusion 45 a enters the identification hole 63, and the storage recess 61
It projects to a position where it almost comes into contact with the outer circumference of the disc CD stored in.

That is, when the tray 60 shown in FIG. 11 is installed, the projections 45a are projected from the right and left two places on the peripheral edge of the storage recess 61. The two protrusions 45a, 45a center the disc CD in the storage recess 61, position the center of the disc CD with respect to the center of the turntable 42, and securely clamp the disc CD on the turntable 42. .
Although the swing arm 45 is used as the pressing member for moving the retaining member 30 upward in the above embodiment, a pressing member 70 shown in FIG. 14 may be provided instead of the swing arm 45.

The pressing member 70 shown in FIG. 14 is the chassis 4
A shaft 72 is slidably supported on a bracket 71 provided on the No. 1 and a pressing body 73 is provided on the upper end thereof.
The pressing body 73 is biased by the spring 74 in the protruding direction from the chassis 41. This pressing member 70
Is provided at a position facing the identification hole 23e of the tray 20 for the 8 cm disc. When the tray 20 is pulled out and the chassis 41 is raised, the pressing body 73 pushes the biasing portion 31f of the retaining member 30 upward, and the retaining member 30 moves upward as shown in FIG. Further, when the tray 60 for the 12 cm disc is installed, the pressing body 73 hits the lower surface of the tray 60, and the pressing body 73 is retracted into the chassis 41 against the biasing force of the spring 74.

The present invention is not limited to the above-described embodiment, but may be, for example, a structure in which the retaining member 30 moves up and down from the upper surface of the tray 20 in a horizontal posture. Further, the disc is not limited to a so-called single compact disc of 8 cm, and may be a disc of any size. Further, the tray is not limited to the one stored in the magazine, and may be a tray that moves in and out from the inside of the device body to the operating side.

[0040]

As described above, in the tray or disc device according to the present invention, the retaining member provided on the tray moves in the direction away from the surface of the tray. Therefore, when the disc is driven on the tray, the retaining member is prevented. With the simple structure of pressing, the disc can be set in a free state.
Further, when the disc is separated from the tray, the retaining member is located on the outside of the disc, so that the disc is reliably regulated with respect to the tray, and the disc does not easily come off from the tray.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a disc tray of the present invention.

FIG. 2 is a partially exploded perspective view showing a part of the tray shown in FIG.

FIG. 3 is an enlarged sectional view taken along line III-III in FIG.

FIG. 4 is an enlarged sectional view taken along line IV-IV in FIG.

5 is an enlarged cross-sectional view taken along line VV in FIG.

FIG. 6 is a plan view showing a state in which the tray is installed in the disc drive unit.

FIG. 7 is a front view showing a state in which the tray is installed in the disc drive unit.

FIG. 8 is a partial cross-sectional view showing a state in which the retaining member is lifted from the tray.

FIG. 9 is a partial cross-sectional view showing a state where the retaining member is lifted from the tray.

FIG. 10 is a front view showing the overall structure of a disk drive unit.

FIG. 11 is a perspective view of a tray on which a disk having a diameter of 12 cm is installed.

FIG. 12 is a plan view showing a state where the tray shown in FIG. 11 is placed on the disk drive unit.

13 is a cross-sectional view showing the movement of the swing arm when the tray shown in FIG. 11 is installed.

FIG. 14 is a partial cross-sectional view showing another embodiment of the pressing member.

FIG. 15 is a perspective view of a magazine in which trays are stored as seen from diagonally above.

16 is a perspective view showing the internal structure of the magazine shown in FIG.

FIG. 17 is a front view of the magazine shown in FIG.

FIG. 18 is a perspective view showing the structure of a conventional tray.

[Explanation of symbols]

 20 tray 21 storage recess 23 support recess 30 retaining member 31 main body 31a plate piece 31b shaft 31d regulating piece 31f biasing portion 31e regulating protrusion 32 torsion spring 40 disk drive unit 41 chassis 42 turntable 45 swing arm (pressing member ) 45a protrusion 45b pressing protrusion 60 12cm disc tray SCD single compact disc CD compact disc DM magazine

Claims (2)

[Claims] 1. A disk tray that moves between a position away from the disk drive unit and a position facing the disk drive unit, wherein a recess for installing the disk is formed on the tray surface, and the recess is installed in this recess. A disc tray is provided with a retaining member for retaining the disc, and the retaining member is movably supported in a direction away from the tray surface. 2. The disc device using the disc tray according to claim 1, further comprising a pressing member for pushing the retaining member in a direction away from the tray surface when the disc is supported in a driven state. Disk device characterized by.