KR900007972Y1 - Disc damping apparatus in optical disc player - Google Patents

Abstract

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Description

Disc clamping device for optical disc players

1 is a side view of a longitudinal optical disk clamping device.

2 is a cross-sectional view showing a longitudinal section of the present invention, showing the operating state before loading the optical disk.

3 is a cross-sectional view of the present invention showing an optical disk is loaded and fixed.

4 is a cross-sectional view taken along the line A-A of FIG.

* Explanation of symbols for main parts of the drawings

21: turntable motor 22: rotation axis

23: disk guide 24: fixed table

25 optical disc 27 possible table

28: spring 29: guide shaft

31: periphery 32, 32 ': rotary clamper

33: Weight 34, 34 ': Spring

The present invention relates to a disc clamping device of an optical disc player, and in particular, it is possible to fix the disc by a rotary clamper that is extended by centrifugal force during rotation of the turntable, thereby providing a disc player having a lower height than the space occupied by the conventional clamping device. A disk clamping device is provided.

In the disc clamping apparatus of the conventional optical disc player, as shown in FIG. 1, a disc 3 can be mounted on the turntable 2 mounted on the turntable motor 1, and the turntable 2 The clamper plate 6, which is connected to the support 4 by the hinge 5, can be rotated up and down, and the clamper 8, in which the magnet 7 is fitted, is installed at the distal end thereof. The suction force of (2) allows the clamper 8 to fix the disk 3 on the turntable 2.

However, in the disc clamping device of the optical disc player of the prior art, the clamper plate 5 is lifted to the upper side when the disc 3 is not mounted, and then the disc 3 is lowered when the disc 3 is placed on the turntable 2. Since the disk 3 is fixed by the suction force between the magnet 7 and the turntable 2 of (8), the moving space of the clamper plate 5 must be secured to the upper part of the optical disk player so that the height of the entire optical disk player There was a flaw that went up.

The present invention has been made in view of the above-mentioned conventional matters, and the disk can be fixed on the turntable by means of a rotary clamper that expands to the tentable by centrifugal force when the tentable rotates. It will be described in detail as follows.

On the rotating side 22 of the turntable motor 21, a disc-shaped disc guide 23 with a narrow upper part is installed, and a cup-shaped fixing table 24 is installed with a certain distance on the lower side thereof, and toward the disc-shaped disc guide 23 side. In the optical disk 25 being loaded, a cup-shaped movable table 27 having a radial flange 26 is inserted into the rotary shaft 22 between the disk guide 23 and the fixed table 24, and the movable table ( The spring 28 is installed between the 27 and the fixed table 24 so that the movable table 27 can be supported by the disc guide 23, and the upper portion of the rotary shaft 22 is perpendicular to the rotary shaft 22. The guide shaft 29 is fixedly installed, and guide holes 30 are formed from both ends of the guide shaft 29 so that the guide shaft 29 is inserted, and a semi-circular peripheral portion 31 is placed on the circumferential side. The diameter of the hour is equal to or slightly smaller than the upper diameter of the disc guide 23 A semicircular cross-section of the bottom surface is formed by inserting a pair of rotating clampers 32, 32 'to face each other, and is placed on the periphery 31 of the rotating clampers 32, 32'. Buried and the structure is formed by connecting the inner side of the peripheral portion 31 of the rotary clampers 32, 32 'and the upper end of the rotary shaft 22 with springs 34, 34'.

The present invention is such that when the optical disk 25 is not loaded and the turntable motor 21 does not rotate, the movable table 27 is in an upwardly supported state by the springs 28, and a pair of opposed rotations is provided. The clampers 32 and 32 ′ are springs 34 connected between the rotary shaft 22 and the peripheral portion 31 in a state where the guide hole 30 is inserted into the guide shaft 29 installed on the rotary shaft 22 ( 34 ') so that the optical disk 25 can be inserted into the disk guide 23 side. At this time, when the optical disk 25 is inserted into the disk guide 23 through the rotary clampers 32 and 32 ', it is seated on the radial flange 26 of the movable table 27 and starts to rotate. 32 'is bent against the force of the springs 34 and 34' by the centrifugal force applied largely by the weight body 33 inserted into the peripheral part 31 side.

When the rotary clampers 32 and 32 'are opened, the upper surface of the optical disk 25 placed on the movable table 27 is pushed down so that the rotary clampers 32 and 32' are always connected to the movable table 27 during rotation. The optical disk 25 is fixed together, and when the number of rotations decreases during unloading, the rotation clampers 32 and 32 'are brought close to each other by the action of the springs 34 and 34' and the optical disk 25 is lifted out when stopped. Can be.

Thus, the present invention has an advantage in that the optical disc player can be configured lower than the device for fixing the optical disc is configured on the tentable itself, which requires space for fixing the optical disc on the top of the conventional optical disc player.

Claims (1)

In the disc guide 23 is mounted on the rotary shaft 22 of the ten-table motor 21, the fixed table 24 is mounted on the lower side thereof, and the optical disc 25 is loaded on the disc guide 23 side. The movable table 27 is installed between the guide 23 and the fixed table 24 to insert the spring 28 between the fixed table 24, and the guide shaft 29 is installed on the upper part of the rotating shaft 22. Semi-circular circumferential edges 31 are inserted from both ends of the guide shaft 29 so as to be installed by opposing the rotary clampers 32, 32 'of semi-circular cross-sections, and the peripheral edges 31 of the rotary clampers 32, 32'. ) Is embedded in a weight body 33, such as lead, and the optical disk by connecting the inner end portion 31 of each rotary clamper 32, 32 'and the upper end of the rotary shaft 22 with springs 34, 34'. Disc clamping device of the player.