KR20070002830A - Clamping device of disk player - Google Patents

Abstract

A clamp device of a disk player is provided to manufacture a clamp capable of clamping a disk in an upper part of a turntable, as a single-unit press material, so that the clamp is installed to lift up and down on a main plate, therefore assembling properties are improved. Magnets(140) are inserted into an upper side of a turntable(130) where a disk(1) is set. A clamp(150) for clamping the disk(1) is manufactured as a single-unit press material in an upper part of the turntable(130), and is installed to lift up and down on a main plate(100). The single-unit clamp(150) is equipped with a central groove unit(152) protruded in lower direction, and guide projections(154) are further protruded in lower direction on the center of the guide groove unit(152).

Description

CLAMP DEVICE OF DISK PLAYER {CLAMPING DEVICE OF DISK PLAYER}

1 is a cross-sectional view showing a clamp device of a conventional disc player,

2 is a cross-sectional view of the clamp device of the disc player according to the present invention.

<Description of the symbols for the main parts of the drawings>

100: main plate 120: spindle motor

130: turntable 140: magnet

150: clamp 152: center groove

154: guide protrusion

The present invention relates to a clamp device of a disc player, and more particularly, to a clamp device of a disc player for fixing a rotating disk seated on a turntable.

In an optical disc player such as a compact disc player (CDP) or a laser disc player (LDP), when a disc is loaded by a loading means and rotated for recording and reproducing on a turntable, the disc flows horizontally or upwards by centrifugal force. In order not to be separated by a separate disk player device for pressing the disk seated on the turntable while detecting the loading completion state of the disk to move up and down mechanically.

One example of such a clamp device is shown in FIG. 1. The spindle motor 20 is fixedly installed on the main plate 10 to rotate the turntable 30, and a clamp assembly 40 for clamping the disk 1 is provided on the top of the turntable 30. It is installed to be able to descend on and off.

The clamp assembly 40 is composed of a base plate 41 and a plate clamp 45 on a substantially disk, and forms a central groove portion 42 by a hook hole 43 protruding in the center of the base clamp 41, The magnet 50 is installed inside the central groove 42. And the hook wing 44 is formed stepped so as to be in a higher position than the lower surface surrounding the edge of the base clamp 41. In addition, the hanger 43 of the central groove portion 42 is provided with a plate clamp 45 for increasing the detachable force.

In the prior art having the above configuration, the leading edge of the disc 1 is raised in conjunction with the operation of loading the disc 1 into the disc player by the tray (not shown). Accordingly, the clamp assembly 40 is attached to the turntable 30 by raising the disk 1 moved to the position corresponding to the upper portion of the turntable 30 while seating the turntable 30.

However, the clamp assembly 40 as described above has a problem in that the structure is complicated and the assembly is inferior because of a plurality of parts.

An object of the present invention is to provide a clamp device for a disc player, which is devised to solve the above-mentioned drawbacks, and which produces a clamping device made of a single piece of press product to improve assembly performance.

In the present invention for achieving the above object, the magnet is embedded in the upper surface of the turntable on which the disk is seated, the upper and lower clamps for clamping the disk is made of a single piece of press-up and down the main plate Provided is a clamp device for a disc player, characterized in that the installation is possible.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art.

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

2 is a cross-sectional view of the clamp device of the disc player according to the present invention.

In the clamp device of the disc player according to the present invention, as shown in FIG. 2, the spindle motor 120 for rotationally driving the turntable 130 is fixedly installed on the main plate 100, and the disc is disposed above the turntable 130. The clamp 150 which clamps (1) is provided so that the main plate 100 can be raised and lowered.

Here, the magnet 140 is embedded on the upper surface of the turntable 130, and the clamp 150 is made of a single piece of press.

The single-piece clamp 150 has a central groove 152 protruding downward from the top and bottom in the shape of a disc, and the guide protrusion 154 further protrudes downward in the center of the central groove 152. Is formed. Accordingly, when the clamp 150 descends, the guide protrusion 154 guides the correct mounting to the turntable 130, and the central groove 152 is fixed to the disk 1 such that it is attached to the magnet 140. Have

Therefore, according to the present embodiment, the action of the clamp device of the disc player is as follows.

The tip is raised in conjunction with the operation in which the disc 1 is loaded into the disc player by a tray not shown. Accordingly, the clamp 150 is attached to the turntable 130 by raising the disk 1 moved to a position corresponding to the upper portion of the turntable 130 while seating on the turntable 130.

At this time, the guide protrusion 154 of the clamp 150 is inserted into the center groove of the turntable 130 to be accurately mounted, and the center groove 152 as the guide protrusion 154 is fixed to the turntable 130. The lower surface of is attached to the magnet 140 on the turntable 130, it is prevented from being separated by pressing the disk (1) seated on the turntable 130 from above.

As described above, the clamp 150 manufactured by a single-piece press process reduces the number of parts as compared to a clamp assembly composed of a conventional base clamp and a plate clamp, thereby improving the assemblability and fixing the disk 1. It can also be used to function.

What has been described above is just one embodiment for carrying out the clamping apparatus of the disc player according to the present invention, and the present invention is not limited to the above-described embodiment, as claimed in the following claims. Without departing from the gist of the present invention, one of ordinary skill in the art will have the technical spirit of the present invention to the extent that various modifications can be made.

As described above, the clamp device of the disc player according to the present invention has the effect of improving the assemblability such that the clamp device is made of a single piece of press material and the number of parts is reduced.

Claims (2)

Magnet is installed on the upper surface of turntable where disk is seated. The upper part of the turntable, the clamp for clamping the disk is made of a single piece of the press is made of a disc player, characterized in that the clamping device is installed so as to move up and down relative to the main plate. The method of claim 1, The clamp has a central groove portion protruding downwardly, which gives a height difference between the upper and lower surfaces in the shape of a disc, and guide protrusions are further protruded downward in the center of the central groove portion. The clamping device of the disc player that is mounted correctly, the center groove is fixed to the disc as attached to the magnet.

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