JP2005018933A - Positioning device for sub tray in disk changer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a positioning device for a sub tray by which clamping operation of a disk and clamp releasing operation of the disk can be smoothly performed, in the positioning device provided with a plurality of sub trays for placing disks and performing positioning of the sub tray in a prescribed position so that the sub tray is not moved when the disk is in the middle of playback in order to convey the sub tray in a standby position to a playback position to perform traverse-loading/clamping operation. <P>SOLUTION: The positioning device is provided with a lever sub tray 7 swung interlocking with movement in a right and left direction of a rack loading 8 making a traverse-unit 5 swingably operate. A pin 12 is projectingly provided at a tip of the lever sub tray 7 and a positioning hole 13 in which the pin 12 is fitted is formed in a sub tray 3. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a disk changer device that stores a plurality of optical disk recording media such as CDs and DVDs and automatically records or reproduces a selected recording medium, and reproduces a subtray on which the recording medium is placed. The present invention relates to a device that positions correctly in position.
[0002]
[Prior art]
A disc changer device can store a plurality of optical disc recording media such as CDs, and can select and record and reproduce one of a plurality of stored optical disc recording media. Disc changers are widely used and come in many forms. However, the disk changer device accommodates a plurality of disks, and these are selected for recording / reproduction, and the selected disks must be replaced.
[0003]
The disc at the standby position is transported to the playback position and mounted / clamped to the turntable. However, the mounting operation on the turntable cannot be performed smoothly unless the transported playback position is accurate. On the contrary, when the clamp is released from the turntable after the reproduction, it is necessary to smoothly perform the clamp release operation and return the disk to the original position.
[0004]
A “disc player” according to Japanese Patent Laid-Open No. 2000-105985 is a disc player that can smoothly perform a clamp releasing operation and can quickly shift to a disc transport operation after releasing the clamp. Therefore, by supporting the disc transport means for transporting the disc to the reproduction position by moving the tray to which the disc is attached and detached, the clamper, the turntable for clamping the disc together with the clamper, the pickup unit, and the turntable and the pickup unit are supported. And a reproducing means including a raising / lowering means for raising and lowering the base to move the turntable between the clamp position and the non-clamp position, and the base has a tray that is moved when the turntable is moved to the clamp position. Protruding pieces for positioning the tray that are fitted into holes formed in the recesses are provided.
[0005]
Simultaneously with the disc clamping operation, positioning is performed between the tray carrying the disc and the base that moves up and down while supporting the pickup unit and the turntable. Therefore, the relative positions of the pickup unit and the turntable and the tray are not shifted during reproduction, and the clamp releasing operation after reproduction can be performed smoothly without causing any particular trouble. At the same time as the disc clamp releasing operation, the positioning of the tray is released. After the clamp release, the disc can be quickly transferred to the disc conveying operation, and the disc player can be operated quickly.
[0006]
Therefore, a protruding piece is formed on the base member that supports the traverse unit, and the base member is raised during the disk reproducing operation to clamp the disk placed on the tray and simultaneously position the tray. A time delay occurs when the protruding piece is inserted into the hole of the tray, and the tray is positioned after the disk is clamped. For this reason, a positional deviation occurs between the disc to be clamped and the turntable. Conversely, when releasing the clamp, the base member is lowered and the clamp is released after the protruding piece is removed from the hole of the tray. Therefore, the returned disk may not be correctly placed on the tray.
[0007]
[Problems to be solved by the invention]
As described above, the tray positioning device in the conventional disk changer has the above-described problems. The problems to be solved by the present invention are these problems, and the sub-tray positioning in which the sub-tray transported to the reproduction position is correctly positioned, and the disk clamping operation and the disk clamping releasing operation can be smoothly performed in this state. Providing equipment.
[0008]
[Means for solving the problems]
The sub-tray positioning device in the disk changer of the present invention includes a swinging lever sub-tray, and a pin projects from the tip of the lever sub-tray. A positioning hole is formed in one of the sub-trays, and the lever sub-tray swings so that the pin can be fitted into the positioning hole, so that the sub-tray is correctly positioned at a predetermined position.
[0009]
By the way, the lever sub-tray is swung by a rack loading slide for swinging the traverse unit. Interlocking means such as cams or grooves are formed in rack loading, and the lever sub-tray swings around the axis in conjunction with the rack loading slide. The sub-tray selected from the tray at the standby position is conveyed to the reproduction position, and the lever sub-tray swings as the rack loading slides, and the front end side of the traverse unit is lifted.
[0010]
With the tip pin of the lever sub-tray inserted into the positioning hole and the sub-tray being correctly positioned, the disk placed on the sub-tray is mounted and clamped on the turntable. Therefore, the clamp position is always accurate. Conversely, when the clamp is released, the disk is placed on the sub-tray positioned at a predetermined position, and then the sub-tray is transported to the standby position. Therefore, the disc clamping operation and the clamping release operation are performed smoothly. Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings.
[0011]
【Example】
FIG. 1 shows a partial external view of the disk changer, and shows a case where the main tray is pulled out. In FIG. 1, 1 is a main body frame, 2 is a main tray, 3 is a sub-tray, and three sub-trays 3a, 3b, 3c are stacked on the main tray 2 and accommodated. The sub-tray 3a, 3b, 3c is formed with concentric outer peripheral edges 4a, 4b with a step so that two types of large and small disks can be placed.
[0012]
When a disk is placed on each sub-tray 3a, 3b, 3c, or when the disk is removed, the sub-tray located on the upper side is locked and stopped at the main body frame 1, and the main tray 2 together with the sub-tray located on the lower side. Is conveyed to the disk replacement position. In this way, the sub-trays 3a, 3b, 3c are accommodated in the main tray 2 and are taken in and out of the main body frame 1 together with the main tray 2.
[0013]
In this figure, the main tray 2 protrudes and is positioned between the disk replacement position (disk take-out position) and the disk standby position. The main tray 2 accommodates two sub-trays 3b and 3c, and the sub-tray 3b positioned in the middle stage. A disk can be placed on the Then, the main tray 2 moves backward from the disk replacement position and is accommodated in the main body frame 1 and conveyed to the disk standby position.
[0014]
When exchanging the discs placed on the lower sub-tray 3c, the upper sub-tray 3a and the middle sub-tray 3b are locked to the main body frame 1, and when exchanging the discs placed on the upper sub-tray 3a, Either the middle-stage sub-tray 3b or the lower-stage sub-tray 3c is locked and is not transported to the disk replacement position by the main tray 2.
[0015]
FIG. 2 shows the internal structure of the disk changer. The figure shows a state in which the main tray 2 is pulled out from the main body frame 1 and can be divided into three areas according to the position of the disk. That is, it is divided into a disk replacement position, a disk standby position, and a disk playback position from the front side of the figure, and the main tray 2 is retracted and accommodated in the main body frame 1 with each disk set in the sub-tray 3a, 3b, 3c. If so, it becomes the disk standby position.
[0016]
Each disk at the disk standby position is transported together with the sub-tray to the rear disk reproduction position and mounted on the turntable 6 of the traverse unit 5. Then, recording / reproduction of the disc is performed. For this purpose, the traverse unit 5 provided with the turntable 6 can be moved in the vertical direction so as to match the position of the transported sub-tray, and a disk of a predetermined sub-tray that has been selectively retracted can be mounted.
[0017]
By the way, the disc placed on the sub-tray selected and transported to the reproduction position is mounted on the turntable and clamped, but the sub-tray is positioned at a predetermined position so that the clamping operation is performed smoothly. The That is, the disc is mounted on the turntable and clamped when it is correctly positioned. On the other hand, when the clamp is released, the disk is placed again on the positioned sub-tray and returned to the standby position.
[0018]
FIG. 3 shows an embodiment of the present invention showing a sub-tray positioning device. In the figure, 3 represents a subtray, 7 represents a lever subtray, 8 represents rack loading, and 9 represents a traverse holder. A traverse holder 9 is attached to the tip of the traverse unit 5, and a boss 10 protruding from the traverse holder 9 is loosely fitted in a cam groove 11 formed in the rack loading 8.
[0019]
Therefore, if the rack loading 8 moves to the left side, the boss 10 loosely fitted in the cam groove 11 is lifted, the traverse unit 5 swings, and the disk placed on the sub-tray 3 moves to the turntable 6. Installed. In the present invention, the sub-tray 3 on which the disk is placed is positioned at a predetermined position so that the disk is correctly mounted on the turntable 6.
[0020]
The sub-tray 3 is positioned by the lever sub-tray 7, and the pin 12 provided protruding from the tip can be fitted into the positioning hole 13 penetrating the sub-tray 3. That is, the lever sub-tray 7 can be swung with its shaft 26 being pivotally supported, and the lever sub-tray 7 is swung and the pin 12 at the tip is inserted into the positioning hole 13 so that the sub-tray 3 is positioned.
[0021]
If the rack loading 8 is provided with another cam groove 14 and a boss 15 provided at the base of the lever sub-tray 7 is loosely fitted in the cam groove 14, the rack loading 8 moves to the left side. The tip pin 12 can be fitted into the positioning hole 13. FIG. 4 shows a case where the pin 12 is inserted into the positioning hole 13 of the sub-tray 3.
[0022]
When the pin 12 is inserted into the positioning hole 13 and the sub-tray 3 is positioned, the disk is not yet mounted on the turntable 6. That is, the boss 10 of the traverse holder 9 is positioned at the inclined middle portion of the cam groove 11, and the rack loading 8 is further moved to the left side so that the disk is mounted on the turntable 6. However, the cam groove 14 is horizontal so that the boss 15 of the lever sub-tray 7 is held at a fixed position even if the rack loading 8 moves to the left side.
[0023]
Incidentally, the means for moving the rack loading 8 in the left-right direction is not limited in the present invention, but it can be performed by, for example, rotation of the gear main 17 meshing with the rack 16. The sub-tray 3 is conveyed by the motor 18 shown in FIG. 2, and FIG. 5 is an embodiment showing a gear mechanism for power transmission. The gear 19 is rotated by the motor 18 with a plurality of gears interposed therebetween, and the sub-tray rack 20 is slid by the rotation of the gear 19 and the sub-tray 3 is conveyed.
[0024]
FIG. 6 shows a state in which a predetermined sub-tray 3 is transported and is in a reproduction position, and a pin 21 standing on the sub-tray rack 20 is fitted into an introduction groove 22 formed in the rack loading 8 so that the rack loading 8 is Slide to the left. The introduction groove 22 has an inclined part and is bent at a substantially right angle, and the pin 21 entering from the inlet moves the rack loading 8 to the left by reaching the inclined part.
[0025]
A rack 16 is provided on the right side of the rack loading 8, and an auxiliary gear 23 provided at the upper end of the gear main 17 can mesh with the rack, and the rack loading 8 is further moved to the left. FIG. 6B is an enlarged view of part A, and the auxiliary gear 23 is provided with large teeth 24 that protrude greatly outward, and the large teeth 24 are provided at the end of the rack 16. And the auxiliary gear 23 can mesh with the rack 16 by rotating counterclockwise. At this time, the mesh of the sub-tray rack 20 with the gear 19 is released.
[0026]
In this way, the rack loading 8 moves to the left side, and the leading end side of the traverse unit 5 that is inclined with the disc standby side lowered is raised, and the disc transported to the reproduction position is mounted on the turntable 6. . As shown in FIG. 3, the rack loading 8 is provided with a cam groove 11, and a boss 10 provided at the tip of the traverse unit 5 is loosely fitted in the cam groove 11. Therefore, if the rack loading 8 moves to the left side, the front end side of the traverse unit 5 is lifted.
[0027]
As described above, the sub-tray positioning device according to the present invention includes the lever sub-tray that swings by the left-right movement of the rack loading, and fits the pin protruding from the tip of the lever sub-tray into the positioning hole of the sub-tray. The following effects can be obtained.
[0028]
【The invention's effect】
The sub-tray positioning device according to the present invention is an operation for mounting and clamping a disk placed on the sub-tray to the turntable in a state where the sub-tray in the standby position is conveyed to the reproduction position and correctly positioned by the lever sub-tray. I do. Therefore, the disc and the turntable are not displaced from each other, and the disc can be clamped smoothly. On the other hand, even when the clamped disc is released, the sub-tray is accurately returned to the sub-tray because the pin is fitted in the positioning hole and stopped at a predetermined position.
[0029]
In the positioning device of the present invention, the pin that fits into the positioning hole of the sub-tray is provided at the tip of the lever sub-tray, and the lever sub-tray that operates separately from the lifting and lowering movement of the traverse unit is provided. The sub-tray swing angle, swing timing, and locking force can be designed independently, and positioning reliability is greatly improved.
[Brief description of the drawings]
FIG. 1 is a part of an external view of a disk changer.
FIG. 2 is an internal structural view of a disk changer.
FIG. 3 is an embodiment showing the sub-tray positioning device of the present invention in a state before positioning.
FIG. 4 shows an embodiment of the sub-tray positioning device of the present invention in a state after positioning.
FIG. 5 is a gear mechanism for driving a positioning device.
FIG. 6 shows a gear mechanism for driving a positioning device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body frame 2 Main tray 3 Sub tray 4 Outer periphery 5 Traverse unit 6 Turntable 7 Lever sub tray 8 Rack loading 9 Traverse holder 11 Cam groove 12 Pin 13 Positioning hole

Claims (2)

Positioning that has a plurality of sub-trays on which to place discs, and positions the sub-tray in the standby position at a predetermined position so that the sub-tray is transported to the playback position and mounted / clamped to the traverse, and does not move during playback The apparatus includes a lever sub-tray that swings in conjunction with the movement of the rack loading that swings the traverse unit in the left-right direction, a pin that protrudes from the tip of the lever sub-tray, and the sub-tray includes the pin A positioning device for a sub-tray, wherein a positioning hole for inserting a pin is formed. 2. A sub-tray positioning device in a disk changer according to claim 1, wherein a cam groove is formed in said rack loading, and a boss provided on a base portion of a lever sub-tray that swings around an axis is loosely fitted in said cam groove.

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