KR0120539B1 - Door locking apparatus of disk player - Google Patents

Abstract

A door opening and/or closing apparatus of disc player suitable for disc player of small size using mini disc cartridge is disclosed. The apparatus comprises: a door having a locking pin formed at a main body having an optical pick-up unit; a door open lever elastically and rotationably located at the main body by spring; a locking groove movably located at the main body to insert the locking pin; a locking member having an inserting ball to insert the door open lever; and a spring formed at the locking member.

Description

Door opening and closing device of disc player

1 is a schematic side cross-sectional view showing a door opening and closing device of a disc player according to the present invention.

FIG. 2 is a plan view showing the door and the cartridge holder of FIG. 1, with the door closed.

3 is a view showing an extract of the locking member shown in FIG. 2, wherein the locking pin of the door is locked by the locking member.

4 is a plan view showing the door and the cartridge holder of FIG. 1 with the door open.

5 is a view showing an extract of the locking member shown in FIG. 4, wherein the locking pin of the door is unlocked from the locking groove of the locking member.

* Explanation of symbols for main parts of the drawings

1 main body 3 optical pickup assembly

4: turntable 5: cartridge holder

6: disc cartridge 7: door

8: locking pin 10: door open lever

11: interlocking pin 12: spring

20: locking member 21: locking groove

24: spring 25: insertion hole.

The present invention relates to a door opening and closing device of a disc player, and more particularly, to a door opening and closing device of a disc player using a moving force of an optical pickup assembly without using a separate motor.

In general, in a magneto-optical disc player for recording information using a disc or reproducing the recorded information, information recorded in a disc lead-in area by being moved radially inward of the disc at an initial position outside the disc of the optical pickup assembly After reading, the disc is moved radially outward to record information on the disc or play back the information recorded on the disc, and when the recording and reproduction on the disc are completed, the optical pickup assembly returns to the initial position off the disc.

In the conventional disc player, the door is opened by a power transmission member such as a motor and a gear.

Therefore, the number of components is complicated, the structure is complicated, a lot of assembly labor, expensive motors and gears, etc., there is a problem that the cost increases.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and an object thereof is to provide a door opening and closing device of a disc player in which a door is opened by an optical pickup assembly and members interlocked with the optical pickup assembly.

In order to achieve the above object, the present invention, the main body having an optical pickup assembly, which is installed to be opened and closed with the cartridge holder, the door having a locking pin is installed on one side; A door open lever rotatably installed on the main body and elastically installed by a spring such that one side thereof is interlocked with the optical pickup assembly; A locking member installed on one side of the main body so as to be movable from side to side, and having a locking groove into which the locking pin is inserted and an insertion hole into which the other side of the door open lever is inserted; It is characterized in that it is provided with a spring for imparting a locking force to the locking member.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The door opening and closing apparatus of the disc player according to the present invention includes an optical pickup assembly 3 driven by a pickup motor 2 and a disc cartridge as shown in FIGS. 1 to 3. The turntable 4 on which the disc housed in 6) is seated is provided.

And the door open lever 10 is rotatably hinged on one side of the main body 1, and the interlocking pin 11 interlocked with the optical pickup assembly 3 is installed on one side of the door open lever 10. One side of the interlocking pin 11 installed by the spring 12 is elastically biased toward the optical pickup assembly 3.

In addition, the locking portion 20 having the locking groove 21 on the side surface of the main body 1 can be slid left and right by the guide pin 22 and the guide slot 23 and at the same time in the arrow A direction by the spring 24. It is installed to be elastic biased, the insertion hole 25 is formed at one side of the locking member 20 is inserted into the other end of the door open lever 10.

One side of the main body 1 is installed so that the door 7 is rotatable and elastically biased upward by a spring, and a cartridge holder 5 into which the disc cartridge 6 is inserted is provided inside the door 7. The door 7 is installed to open and close together, and a locking pin 8 that is locked by the locking groove 21 of the locking member 20 is installed at one side of the door 7.

The door opening and closing device of the disc player according to the present invention configured as described above is operated as follows.

First, as shown in FIGS. 1 and 4 and 5, the door 7 is opened together with the cartridge holder 5, and the optical pickup assembly 3 pushes the door open lever 10 in the direction of arrow A. FIG. With the locking pin 8 of the door 7 removed from the locking groove 21 of the locking member 20 installed in the main body 1, the disc cartridge 6 is inserted into the cartridge holder 5, When the door 7 is closed, the locking pin 8 formed on the door 7 is inserted into the locking groove 21 of the locking member 20 and the pickup motor 2 is driven to arrow the optical pickup assembly 3. It moves in the B direction.

Accordingly, one side of the door open lever 10 is rotated in the direction of arrow B by the springing 12 and 24, and the locking member 20 in which the other side of the door open lever 10 is inserted is arrow A. While moving in the direction, the locking pin 8 of the door 7 is locked to the locking groove 21 of the locking member 20 as shown in FIG. 3 so that each door 7 is closed.

In this state, the optical pickup assembly 3 is moved radially inward of the disc to read the information in the lead-in area of the disc, and then moved to the reproduction and recording position of the information per row to reproduce the information recorded on the disc or vice versa. Information will be recorded.

At this time, the door open lever 10 separated from the optical pickup assembly 3 is rotated by the elasticity of the spring 12, 24 as shown in FIG. It will be moved to a position close to the outer periphery of

When the disc cartridge is ejected while recording information on the disc or reproducing the information recorded on the disc, as shown in FIGS. 2 and 3, the pickup motor 2 is opened with the door 7 closed. As a result, the optical pickup assembly 3 moves in the radial direction of the disk, that is, in the direction of arrow A, and pushes the interlocking pin 11 installed on one side of the door open lever 10 in the direction of arrow A. FIG.

Therefore, the other side inserted into the insertion hole 25 of the locking member 20 of the door open lever 10 is to push the locking member 20 in the direction of arrow B while the door open lever 10 rotates about the hinge. As shown in FIG. 5, the locking state of the locking pin 8 locked to the locking groove 21 of the locking member 20 is released, and together with the cartridge holder 5 into which the disc cartridge 6 is inserted. The door 7 is opened as shown in FIG.

As described above, the door opening and closing device of the disc player of the present invention is a door open lever interlocked with the optical pickup assembly and a locking member interlocked with the door open lever. Compared with the method of using the power transmission member, the number of components can be reduced, the structure is simple, the assembly work can be saved, and the cost can be reduced because expensive motors and gears are not used.

Claims (1)

A door installed to be opened and closed together with a cartridge holder in a body having an optical pickup assembly, and having a locking pin installed at one side thereof; A door open lever which is rotatably installed on the main body and is elastically installed by a spring so that one side thereof is interlocked with the empty pick-up assembly; A locking member installed on one side of the main body so as to be movable left and right, and having a locking groove into which the locking pin is inserted and an insertion hole into which the other side of the door open lever is inserted; And a spring for imparting a locking force to the locking member.