Recording and reproducing device provided with clamper

Abstract

To reduce abnormal sound produced by contact between a clamper and a turntable between which hold and sandwich a disk. When a magnet provided for a turntable and a magnetic substance for a clamper provided for the clamper in a vertically movable manner are attracted toward each other by a magnetic force, a protrusion formed in an underside of the clamper pushes the turntable, which causes a curved part of the clamper to deform and causes the magnetic substance for the clamper to move in an opposite direction against the attraction toward the magnet by the magnetic force. This allows the curved part to attenuate impact accompanying the contact between the clamper and the turntable.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a cross-sectional view showing a clamper and a turntable spaced apart from each other of a recording and reproducing device according to an embodiment of the present invention;

FIG. 2 is a plan view showing a magnetic substance for the clamper attached to the clamper according to the embodiment of the present invention;

FIG. 3 is a cross-sectional view showing the magnetic substance for the clamper attached to the clamper according to the embodiment of the present invention;

FIG. 4 is a plan view showing the clamper according to the embodiment of the present invention;

FIG. 5 is a cross-sectional view showing a disk held and sandwiched between the clamper and the turntable according to the embodiment of the present invention; and

FIG. 6 is a cross-sectional view showing the clamper and the turntable in contact with each other through magnetic attraction according to the embodiment of the present invention.

Claims

1. A recording and reproducing device provided with a clamper, comprising: a turntable which rotates; anda clamper arranged above the turntable to hold and sandwich a disk-shaped storage medium placed on the turntable together with the turntable by attraction of a magnetic force,wherein when the disk-shaped storage medium is not interposed between the turntable and the clamper, and a magnetic substance for the turntable provided for the turntable and a magnetic substance for the clamper provided for the clamper in a vertically movable manner attract each other by a magnetic force, a protrusion formed in an underside of the clamper pushes the turntable to thereby bend and deform a curved part formed in the clamper so that the magnetic substance for the clamper pushed upward accompanying the deformation of the curved part moves upward, which is a direction opposite to the direction of attraction of the magnetic force against the attraction by the magnetic force toward the magnetic substance for the turntable.

2. The recording and reproducing device provided with a clamper according to claim 1, wherein at least one of the magnetic substance for the turntable and the magnetic substance for the clamper is a magnet.

3. The recording and reproducing device provided with a clamper according to claim 1, wherein both the magnetic substance for the turntable and the magnetic substance for the clamper are magnets.