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:
Sep. 15, 1987
Filed:
Feb. 10, 1986
Applicant:
Inventor:
Takamichi Fuke, Furukawa, JP;
Assignee:
Alps Electric Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360106 ; 360109 ;
Abstract
A device for shifting a carriage on which the magnetic head of a disk drive is carried, the disk drive being used with magnetic disks. A mating element mounted to the carriage is in resilient contact with a helical groove formed on a threaded shaft. A retaining member having a retaining portion is mounted on the carriage. The retaining portion is usually not in contact with the wall defining the helical groove, but bears against the wall when the shaft stops abruptly or a strong external force is applied, for example. Thus, the mating element is prevented from disengaging from the groove.