| 摘要 |
A disc device in which a clamping member for supporting a clamper is pushed against a supporting portion by a holding elastic member. At the side opposite the supporting portion, a clamping elastic member is provided between a drive chassis and the clamping member. The distance from a supporting fulcrum to a portion upon which the elastic force of the clamping elastic member acts is greater than the distance from the supporting fulcrum to a portion upon which a clamping force acts, so that the elastic force of the clamping elastic member for setting the clamping force can be small. Therefore, a large localized force does not act upon the clamping member from the clamping elastic member. In a conventional vehicle-mounted disc device, a spring having a large elastic force is used to exert a clamping force to clamp a disc by a clamper. Therefore, a large localized force acts on a clamping member for supporting the clamper. In addition, a large force is required to lift the clamping member. The present invention solves these problems.
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