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:
Mar. 11, 2003
Filed:
Dec. 05, 2000
Hiroyuki Sato, Kanagawa, JP;
Yutaka Fukuyama, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A disk centering apparatus includes a disk table member and a movable member. An inner circumferential portion of the disk table member is secured to an upper portion of a motor shaft. An outer circumferential portion of a greater diameter is disposed lower than an upper surface of and concentrically with the inner circumferential portion and has an upper surface for receiving a disk thereon. Connecting portions extend radially outwardly from the inner circumferential portion. The movable member includes a supported shaft portion mounted for sliding movement on the motor shaft and disposed lower than the disk table member. A guiding portion is provided adjacent an outer surface side of the supported shaft portion and includes a guiding inclined portion formed at an upper portion thereof and a diameter greater than the inner circumference portion. The movable member is biased upwardly in a direction of the motor shaft.