US 6,983,474 B2 | ||
Disk clamping device | ||
Hiroyuki Shishido, Hachiouji (Japan) | ||
Assigned to Kabushiki Kaisha Kenwood, Tokyo (Japan) | ||
Appl. No. 10/296,315 PCT Filed Feb. 22, 2002, PCT No. PCT/JP02/01619 § 371(c)(1), (2), (4) Date Nov. 22, 2002, PCT Pub. No. WO02/077990, PCT Pub. Date Oct. 03, 2002. |
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Claims priority of application No. 2001-084277 (JP), filed on Mar. 23, 2001. | ||
Prior Publication US 2003/0133398 A1, Jul. 17, 2003 | ||
Int. Cl. G11B 17/028 (2006.01) |
U.S. Cl. 720—713 | 2 Claims |
1. A disc clamp device for holding a disc by sandwiching it by a turn table and a clamp (6), the disc clamp device comprising:
a clamp arm capable of rotating in a direction moving close to the turn table and a direction moving away from it;
a plate spring member (5), a part of which is fixed to the clamp arm, and which has first tongue pieces (5b, 5b′) located under a flange (6b) of the clamp (6) for lifting the clamp by the first tongue pieces (5b, 5b′) upon an unclamping state and pressing an upper center of the clamp in a direction of the turn table during a clamping state;
second tongue pieces (4a, 4a′) provided at the clamp arm to press third tongue pieces (5a, 5a′) of the plate spring member on both sides of a portion pressing a center projection (6a) and
wherein the plate spring member (5) is configured so that the plate spring member 5 is pressed against a fixing member (8) and elastically deformed by the reaction caused by the pressure against the fixing member (8), upon the unclamping state.
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