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:
Dec. 14, 2004
Filed:
Oct. 11, 2002
Tsuyoshi Yamaguchi, Marako-machi, JP;
Other;
Abstract
A turntable assembly not requiring use of plastic centering hooks, enabling simplification of the mold structure, and enabling attachment of the leaf springs imparting elastic spring force in the disk centering mechanism even after fitting the center hole of the turntable over the motor shaft, wherein the turntable assembly has a motor having a projecting motor shaft and a turntable having a center hole into which the projecting portion of the motor shaft is inserted and a magnet holding groove formed at a disk hole mating hub around the center hole and holding a permanent magnet for clamping an information storage disk placed on the turntable in the magnet holding groove, the disk centering mechanism having a plurality of spring seats at spring flexing spaces formed at intervals in the circumferential direction of the disk hole mating hub each of the spring seats being provided with a centering leaf spring having a vertically descending piece protruding slightly outward in the radial direction from the outer circumference of the disk hole mating hub.