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. 14, 2003
Filed:
Jul. 20, 2001
Hirofumi Okumura, Miyagi-ken, JP;
Kyuichiro Terui, Miyagi-ken, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
The present invention provides a linear operation type electric part in which a spring member for restoring the movement of a movable member and a spring member for preventing the backlash of the movable member are formed of the same kind of coil spring, thereby reducing the number of part used therefore, and enabling lower cost and increased productivity, and in which a movable member can be moved smoothly. The linear operation type electric part of the present invention includes the spring assembly, composed of the spring member for restoring the movable member from its movement and the spring member for preventing the movable member from backlash, both formed of the same type of coil springs. Therefore, it is possible to provide a linear operation type electric part which, when compared to conventional counterparts, requires fewer parts, thus providing lower cost and increased productivity. Moreover, in the present invention, the spring member does not slide along the case as in conventional counterparts. Therefore, it is possible to obtain a smooth movement of the movable member.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile