The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 18, 2011
Filed:
Feb. 22, 2008
Haruhiko Ito, Kyoto, JP;
Takuya Yamane, Kyoto, JP;
Shigeo Kawamura, Kyoto, JP;
Yoshihisa Kitamura, Kyoto, JP;
Haruhiko Ito, Kyoto, JP;
Takuya Yamane, Kyoto, JP;
Shigeo Kawamura, Kyoto, JP;
Yoshihisa Kitamura, Kyoto, JP;
Nidec Corporation, Kyoto, JP;
Abstract
A motor includes a chucking device to hold a disk having a central opening in a detachable manner. In the chucking device, a turntable part is arranged above a rotor holder and has a disk support surface for supporting the disk. An axially slidable cone part is arranged above the turntable part. A resilient member is axially arranged between the turntable part and the cone part upwardly biases the cone part. Further, the turntable part includes an inner table made of a metal and fixed to the shaft, and an outer table made of a resin material and fixed to an outside of the inner table. The outer table has the disk support surface and is axially spaced apart from the rotor holder in a position where the inner table and the outer table are fixed to each other.