JPH0664829B2 - Compact disk player device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compact disc player device, and an interlock for turning off the power of a laser diode at a position where a storage lens starts to open and a pickup lens cannot be directly viewed because a laser beam is not exposed to the outside. The purpose is to realize the system.

2. Description of the Related Art Generally, a compact disc player device is sold as a high-quality reproducing device, and a slide-in loading mechanism is also adopted in a disc device.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, the conventional disc mounting method is complicated and expensive, and occupies a large weight in the cost structure of the compact disc player device, which is an obstacle to the cost reduction of the product. . The present invention is easy to use, inexpensive and
A compact disc player device with high safety is provided.

According to the present invention, the cabinet is provided with an opening slightly larger than the disc so that the user can directly place the disc on the turntable of the drive mechanism. By closing the storage door later, the disk is fixed at a predetermined position on the turntable of the drive mechanism with a clamper, and the power switch of the laser diode is configured to conduct.
In addition, when the disc is replaced, the lock of the storage door is released by operating the release push button, and the release pin is used to secure the OFF stroke of the laser power switch and the stroke just to put the finger on the storage door. The feature is that the storage door is opened by a predetermined stroke, and the storage door is fully opened by a manual operation to take out the disc.

Operation The present invention attaches the drive mechanism to the rear cabinet, and provides the front cabinet with the storage door having the clamper.
Since the opening for attaching and detaching the disc to and from the drive mechanism is made larger than the disc, the detachability of the disc to and from the drive mechanism can be improved. Therefore, the power supply to the laser diode for pickup is controlled by two switches that are turned on and off according to the opening and closing of the storage door, so it is possible to double check the power supply and enhance safety. You can

Embodiment An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, the drive mechanism 3 is a mounting chassis 4
To the side surface of the mounting chassis 4, and the fixing piece 5 of the knife switch and the push switch 6 are fixed to the side surface of the mounting chassis 4 with screws, and the locking claw 8a is provided between the terminals 5a and 5b of the fixing piece 5 of the knife switch. The lock lever 8 having the lock lever 8 is slidably mounted, and the rotation shaft 7a of the eject lever 7 that fits into the hole 8b at the other end of the lock lever 8 is fitted into the bearing 4b of the mounting chassis 4 so that the lock lever 8 is rotatable. It is attached. The lock lever 8 and the eject lever 7 are spring-biased in the direction in which the lock claw 8a works. Further, the other end of the eject lever 7 has a shaft 7b which is fitted with the opening push button 20. The mounting chassis 4 is mounted on the mounting boss 1a of the rear cabinet 1 by the mounting holes 4c. The front cabinet 2 is provided with an opening 2a slightly larger than the disc 21 and two recesses 2b for taking out the disc. Further, the opening pin 9 is provided with a spring 22 and a mounting plate 23 so that the boss on the inner surface of the front cabinet 2 can be prevented.
It is fixed to 2f with screws 24, and the open pin 9 projects from the open 2e. Also, the lock claw 8a of the lock lever 8
And an opening 2e corresponding to the terminals 5a and 5b of the fixed piece 5 of the knife switch, an opening 2d corresponding to the lever 6a of the push switch 6, and a bearing hole 2g for rotatably mounting the storage door 11.
And a boss 2h corresponding to the mounting boss 1a of the rear cabinet 1 and the mounting hole 4c of the mounting chassis 4.

The storage door 11 is attached to the front cabinet 2 by a rotating shaft 10 that fits into the mounting hole 11a and the bearing hole 2g of the front cabinet 2. Furthermore, a lock fitting that doubles as a movable piece of the knife switch
13 is fixed with screws. The lock fitting 13 is provided with a lock hole 13a that engages with the lock claw of the lock lever 8, an operating pin 11b that operates the lever 6a of the push switch 6 is integrally formed, and a puller that fixes the clamper holder 17 is provided. A hanging hole 11c is provided. A decorative plate 12 is attached to the surface by adhesion. In the clamper holder 17, a recess 17a for accommodating the flange 15 of the clamper 25 and a clamper holding plate 19 are screwed 20.
A boss hole 17c for stopping with is provided. Further, a hook claw 17b is provided at a position corresponding to the hook hole 11c of the storage door 11.

The disk 21 is held by being pressed onto the turntable 3a of the drive mechanism 3 by a clamp 25 composed of holding metal fittings 14 and 15, a positioning pin 16, a magnet 18 and a felt 21.

2 and 4 show a state in which the disc 21 is mounted and operating as state A, and FIGS. 3 and 5 show the release push button 20.
A state in which the storage door 11 is pushed out by the open pin 9 by pressing is shown as a state B.

In the A state, the storage door 11 is fixed at a predetermined position by engaging the lock claw 8a of the lock lever 8 with the lock hole 13a of the lock fitting 13. Therefore, the terminals 5a and 5b of the fixed piece 5 of the knife switch mounted on the mounting chassis 4 are connected with the lock fitting 13 as a movable terminal, and the power switch of the laser is turned on.
Become N. Further, the lever 6a of the push switch 6 provided auxiliary is pushed in by the operation pin 11b of the storage door 11 to be turned on, and the control IC of the drive mechanism is set to the operation standby. At this time, the open pin 9 provided on the inner surface of the front cabinet 2 is in contact with the inner surface of the storage door 11 and is pushed inward.

Next, the B state will be described. When the release push button 20 is pressed, the eject lever 7 rotates together, the connected lock lever 8 slides, and the lock claw 8a is disengaged from the lock hole 13a of the lock fitting 13 to release the lock. Next, the opening pin 9 biased by the spring 22 pushes the inner surface of the storage door 11 to open the storage door 11. When the storage door 11 is opened, the power switch of the laser constituted by the lock fitting 13 and the terminals 5a and 5b of the knife switch fixing piece 5 is turned off, and the lever 6a of the push switch 6 pushed by the operating pin 11b is released, and the drive mechanism is driven. A stop command is issued to the control IC of. Therefore, the drive mechanism stops its operation and the laser emission is also stopped.

EFFECTS OF THE INVENTION According to the present invention, it is possible to improve the detachability of the disc with respect to the drive mechanism, but a double switch structure is used to supply power to the laser diode for pickup according to the opening and closing of the storage door when the disc is attached and detached. Since it was controlled by the
In addition, it is possible to realize a compact disc player device with high safety.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a compact disc player device of the present invention, FIGS. 2 and 4 are sectional views showing a state in which a disc is housed in the device, FIG. 3 and FIG. It is sectional drawing when the open pin in an apparatus act | operates. 1 …… rear cabinet, 2 …… front cabinet, 2a ……
Opening, 3 ... Drive mechanism, 4 ... Mounting chassis, 5 ... Knife switch fixing piece, 6 ... Push switch, 7 ... Eject lever, 8 ... Lock lever, 9
...... Opening pin, 10 …… Rotating shaft, 11 …… Storing door, 11a ……
Convex pin, 13 ... Lock fitting.

Claims (1)

[Claims] 1. A rear cabinet to which a drive mechanism is attached, a front cabinet having an opening for attaching and detaching a disc to and from the drive mechanism, and a front cabinet rotatably attached to a storage door for closing the opening, and the storage. A lock mechanism for opening and closing the door, a release push button interlocking with the lock mechanism, a spring-biased release pin, and a power supply to the laser diode for optical pickup when the storage door is locked.
A knife switch that is turned on and turns off the power to the pick-up laser diode when the storage door is opened, and the knife with the convex pin of the storage door so that the laser light from the pickup laser diode does not leak outside the device. A compact disc player device including a push switch for turning on / off a power source to the pickup laser diode similarly to the switch.