JPH0416279Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a disk loading device used in a disk player for playing back optical disks and the like.

[Summary of the idea]

The present invention includes a disk table that is movable with respect to a housing, a turntable for the disk disposed inside the housing, a drive lever that rotates according to the movement of the disk table, and a disk table that is movable with respect to the housing. a chuck arm having a chuck portion held between the turntable and rotated by rotation of the drive lever; a biasing means for biasing the chuck arm in a direction in which the disc is held; and a lock lever that moves in the direction of movement and restricts the rotation of the drive lever, and when the disk table moves toward the inside of the casing, the lock lever moves and the rotation restriction of the drive lever is released. As a result, the chuck arm is rotated by the biasing means, and the disk is held between the turntable and the chuck portion, so that the movement of the disk table in and out and the chuck arm These operations are performed by one motor, and the load on the motor is reduced.

[Conventional technology]

2. Description of the Related Art In a disc player that plays optical discs such as compact discs, the disc is placed on a disc table that is provided on the front of the case so that it can be moved in and out. Furthermore, when the disk table on which the disk is placed is stored in the case, a chuck provided in the case descends to hold the disk. Many conventional disk players have been provided with a motor for moving the disk table in and out and a motor for lowering the chuck, resulting in an increase in size and cost of the player. Therefore, it has been proposed to use only one motor for moving the disk table in and out, and to move the chuck up and down in conjunction with the movement of the disk table. As an example, a disk player has been proposed by the present applicant in Japanese Patent Application No. 59-5383.

In the disc player according to the above application,
When the disk table on which the disk is placed is pulled into the case, by pulling the table upward while pulling it in, it escapes the turntable inside the case, and when the table reaches a predetermined position, it springs up. resist and lower it,
The disc is placed on the turntable and the chuck is lowered.

[Problem that the invention attempts to solve]

When the player lowers the table, the spring acts as a load on the motor, and the action of lowering the chuck acts as a load on the motor. This causes a process in which the load on the motor becomes particularly large, and it is therefore necessary to use a motor with a high rating.

[Means for solving problems]

In the present invention, a disk table is provided that is movable between the inside and outside of the housing, a turntable that is provided inside the housing and on which the disk is placed, and a turntable that rotates according to the movement of the disk table. and a chuck portion for holding the disc between the turntable and the chuck arm, which is rotated by rotation of the drive lever, and biasing the chuck arm in a direction in which the disc is held. and a lock lever that is slidably provided in the direction of movement of the disk table and restricts the rotation of the drive lever, and the lock lever is provided so as to be slidable in the direction of movement of the disk table and to restrict the rotation of the drive lever. A part of the disk table comes into contact with the lock lever and causes the lock lever to slide, and the sliding of the lock lever releases the restriction on rotation of the drive lever, and the chuck arm is rotated by the biasing means. A tray loading device was constructed to hold the disk between it and the turntable.

[Effect]

The operation of lowering the chuck arm when the disc table lowers against the spring at the turntable position does not place a load on the motor.

〔Example〕

FIG. 2 shows the external appearance of a small optical disc player 1 to which the present invention is applied.

In the figure, an opening 3 is provided on the front surface of a case 2, and a disk table 4 is provided through this opening 3 so as to be able to be taken in and out in the directions of arrows a and b. This table 4 is formed with a circular disk placement part 5, and a compact disk 6 is placed on this placement part 5 as shown by the imaginary line. Also case 2
Various operation buttons 7, etc. are arranged on the top surface. The disk table 4 can be moved from the state shown in the figure by pressing the operation button 7.
By pressing , a motor provided inside the case 2 is driven, and the case 2 is moved in the direction a via a drive mechanism. And its front plate 4
A is adapted to match the opening 3 and close it.

The disk table 4 has an upper and lower double structure, and a base is provided at the lower part of the table 4 (not shown). When the table 4 on which the disk is placed together with this base is drawn into the case 2 in the direction a, the table 4 is drawn in while rising, and when it reaches a predetermined position, it descends against the spring. , the disc is placed on the turntable 8. Such configurations and operations are disclosed in the aforementioned applications.

Next, parts related to the present invention will be explained with reference to FIGS. 1 and 2.

A chassis 9 is provided inside the case 2 (however, the case 2 is not shown in FIG. 1). The chassis 9 is provided with a disk rotation motor 10, and the turntable 8 is provided directly connected to this motor 10. This turntable 8 is provided with a protrusion 11 for holding a disc. The chassis 9 is further provided with a guide shaft 12 on its side. A slide bearing 13 is provided at the rear part 4b of the table 4, and the guide shaft 12 is attached to the slide bearing 13.
is inserted, the table 4 becomes a, b
It is possible to move in any direction. In addition, chassis 9
Although not shown, a motor for driving the disk table 4 is provided, and the table 4 is moved by this motor via a rack mechanism. At the top of the chassis 9, a chuck arm 15 is provided with a chuck portion 14 at its tip for holding a disk, and a chuck arm 15 is rotatable in the directions of arrows c and d using a support portion 16 at its approximate center about a pivot support 17 as a fulcrum. It is provided. This chuck arm 15
is biased in the c direction by a spring 18. The chassis 9 is further provided with a chuck arm drive lever 19 that is rotatable in the directions of arrows e and f using a shaft support 20 as a fulcrum.
is provided so as to be slidable in the a and b directions and biased in the b direction by a spring 22. These drive lever 19 and lock lever 21 are arranged near the guide shaft 12.

A slope 19 is located near one end of the drive lever 19.
A and a concave portion 19b continuous to the slope 19a are formed, a pin 23 is provided at the other end, and a protrusion 19c is provided approximately at the center. A pin 24 is provided on this protrusion 19c. 1st A
In the state in which the table 4 is pulled out in the figures and FIG. are doing.

The lock lever 21 is provided with a protrusion 21a against which the front surface of the slide bearing 13 comes into contact, and is also formed with a stepped portion 21b. In the state shown in FIGS. 1A and 2, the pin 23 is in contact with the upper portion 21c of the lock lever 21. Further, a pin 25 is provided on the slide bearing 13 so as to be in contact with the slope 19a. Note that the step portion 21b may be formed as a slope.

Next, the operation of the above configuration will be explained.

In the state shown in FIGS. 1A and 2, when a predetermined operation button 7 is operated, the table drive motor is driven and the table 4 is moved in the direction a. Along with this, the slide bearing 13 moves in the direction a along the guide shaft 12. At this time, the pin 25 moves in the direction a without contacting the drive lever 19. As shown in FIG. 1B, when the front surface of the slide bearing 13 comes into contact with the protrusion 21a of the lock lever 21 and the lock lever 21 is moved in the direction a against the spring 22, the pin 23 is moved to the upper part 21c. The step part 21b is dropped from the lower step part 21d.
It momentarily reaches , and then locks. For this reason,
The drive lever 19 rotates in the direction e, and the pin 24
The engagement between the protrusion 15a and the chuck arm 15 is released, and the chuck arm 15 is rotated in the direction c by the spring 18, so that the chuck portion 14 is lowered. At the same time, the table 4 is moved in the direction a as described above, and is then lowered against a spring (not shown) to place the disk 6 on the turntable 8. Therefore, when the table 4 is lowered, a load is applied to the motor by the spring, but at this time the chuck arm 15 is lowered by the spring 18.
No load is applied to the chuck arm 15.

As described above, the disc 6 is held on the turntable by the chuck portion 14. In this state, the pin 25 is inserted into the recess 1 of the drive lever 19.
It has entered 9b. As a result of the above, the motor 10
is rotated, and the disc 6 is played back.

When the playback ends and the predetermined operation button 7 is pressed again, the table drive motor is driven again and the table 4 is moved in the b direction. Along with this, the pin 25 comes out of the recess 19b of the drive lever 19 and moves in the b direction while pressing the slope 19a, so the drive lever 19 is rotated in the f direction. As a result, the pin 24 presses the protrusion 15a against the spring 18, and the chuck arm 15 is therefore rotated in the direction d, causing the chuck portion 14 to rise and release the holding of the disk 6. Incidentally, at this time, the table 4 is raised, and an operation of lifting the disk 6 from the turntable 8 and placing it on the table 4 is performed. On the other hand, the pin 23 runs over the step 21b from the lower step 21d of the lock lever 21, and the lock is released.The lock lever 21 is moved in the direction b by the spring 22, and the pin 23 is moved again to the upper step 21b.
It reaches 1c. Then, by further moving the table 4 in the direction b, FIGS. 1A and 2
It will be in the state shown in the figure.

According to the above operation, when the table 4 is moved in the direction a and descends against the spring at the position of the turntable 8, the chuck arm 15 is moved by the spring 18.
Since the spring 18 is pulled down by the motor, the spring 18 does not become a load on the motor. Therefore, the spring 18 can be provided to bias the chuck arm 15 in the downward direction, and an excessive load is not applied to the motor, and the overall load can be balanced.

[Effect of idea]

A single motor can move the disk table in and out and move the chuck arm up and down.
Furthermore, since the load on the motor is reduced, a smaller motor can be used.

[Brief explanation of drawings]

1 and 2 show an embodiment of the present invention, FIG. 1 is a side view showing the operation, and FIG. 2 is a perspective view. In addition, in the symbols used in the drawings, 2... Case (housing), 4... Disk table, 6... Compact disk (disk), 8... Turntable, 14... Chuck part, 15... Chuck arm, 18 ... spring (biasing means), 19 ... drive lever, 21 ... lock lever.

Claims (1)

[Scope of Claim for Utility Model Registration] A disk table that is movable between the inside and outside of a housing, a turntable that is installed inside the housing and on which a disk is placed, and a turntable that is movable between the inside and outside of the housing, a drive lever that rotates with the rotation of the drive lever; a chuck arm that is rotated by the rotation of the drive lever; and a chuck arm that is rotated by the rotation of the drive lever; and a lock lever that is slidably provided in the direction of movement of the disk table and restricts rotation of the drive lever, the disk table being moved into the housing. Therefore, a portion of the disk table comes into contact with the lock lever and causes the lock lever to slide, and the sliding of the lock lever releases the restriction on rotation of the drive lever, so that the chuck arm is moved by the biasing means. A disk loading device characterized in that the disk is rotated to hold the disk between the turntable and the turntable.