Disc clamping mechanism and disk player provided with the clamping mechanism

A disk clamping mechanism to be used with a disk, the disk clamping mechanism comprising

• a turntable, the turntable giving a rotation to a disk;
• a chassis, the chassis mounting the turntable;
• a clamp arm, the clamp arm attached to the chassis, the clamp arm supported so as to freely swing via a swing fulcrum in a clamped direction facing the turntable and in a clamp-released direction facing opposite the turntable;
• a clamper, the clamper supported by the clamp arm so as to freely rotate, the clamper clamping a disk between the turntable and the clamp arm;
• an energizing means, the energizing means for applying an energizing force to energize the clamp arm in the clamped direction;
• and
• a clamp switching means, the clamp switching means for swinging the clamp arm in the clamp-released direction against the energizing force of the energizing means,
• wherein:
• the energizing means comprises a support end whereby the energizing means is supported by the chassis, and an energizing arm extending from the support end;
• the energizing arm swings to follow a swing of the clamp arm and applies the energizing force to a pressed part of the clamp arm in the clamped direction;
• the energizing arm has a contact point which contacts continuously with the pressed part;
• and
• the contact point of the energizing arm moves farther from the support end when the clamp arm swings in the clamp-released direction.

A disk player provided with a disk clamping mechanism to be used with a disk, the disk clamping mechanism comprising:

• a turntable, the turntable for rotating a disk;
• a clamp arm, the clamp arm supported so as to freely swing via a swing fulcrum in a clamped direction facing the turntable and in a clamp-released direction facing opposite the turntable;
• a clamper, the clamper supported by the clamp arm so as to freely rotate, the clamp arm clamping a disk between the turntable and the clamper;
• an energizing means, the energizing means for applying an energizing force to energize the clamp arm in the clamped direction;
• and
• a clamp switching means, the clamp switching means for swinging the clamp arm in the clamp-released direction against the energizing force of the energizing means,
• wherein:
• the energizing means swings to follow a swing of the clamp arm;
• the energizing means comprises an energizing arm and a support end for the energizing arm, the energizing arm applying the energizing force in the clamped direction to a pressed part of the clamp arm at a contact point;
• and
• the positions of the swing fulcrum of the clamp arm and the support end for the energizing arm are set in such a manner that the contact point of the energizing force applied from the energizing arm to the pressed part moves farther from the support end for the energizing arm as the clamp arm swings in the clamp-released direction.