US 7,533,395 B2
Disk apparatus
Yukihiro Araki, Fujiidera (Japan); Shingo Kage, Kobe (Japan); Shinya Ogasawara, Yokohama (Japan); and Nobuyuki Miroku, Ikoma (Japan)
Assigned to Panasonic Corporation, Osaka (Japan)
Appl. No. 10/576,378
PCT Filed Oct. 18, 2004, PCT No. PCT/JP2004/015380
§ 371(c)(1), (2), (4) Date Apr. 19, 2006,
PCT Pub. No. WO2005/038793, PCT Pub. Date Apr. 28, 2005.
Claims priority of application No. 2003-359779 (JP), filed on Oct. 20, 2003.
Prior Publication US 2007/0079310 A1, Apr. 05, 2007
Int. Cl. G11B 17/28 (2006.01)
U.S. Cl. 720—712 4 Claims
OG exemplary drawing
 
1. A disk apparatus comprising:
a stationary frame to be a stable portion, and
a floating unit which is disposed in said stationary frame through elastic component and which performs recording and/or reproducing on a disk-shaped recording medium,
wherein said floating unit comprises a clamping member including a clamper which holds said disk-shaped recording medium, and a disk recording/reproducing-driving member including a turn table, and
a part of said clamper and a part of said turn table are fitted in each other, when said disk-shaped recording medium is held between said clamper and said turn table,
wherein a claw of a clamper-holding part is engaged with a hook portion of said clamper near the internal position of the center hole of said disk-shaped recording medium held between said clamper and said turn table, and wherein the part of said clamper is fitted in an annular groove formed in a shaft portion of said turn table at its engaging position,
wherein the hook portion is formed at the center portion of said clamper, and wherein said hook portion includes a plurality of hooks formed at regular intervals on the same circumference, and a projection which is formed on the center axis of rotation of said disk-shaped recording medium and which comes into contact with said clamper-holding part when said disk-shaped recording medium is held between said clamper and said turn table.