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:
Apr. 05, 1994
Filed:
Jul. 24, 1992
Applicant:
Inventors:
Osamu Sano, Kashihara, JP;
Toshihiko Daido, Temmadainishi, JP;
Assignee:
Koyo Seiko Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B62D / ;
U.S. Cl.
CPC ...
180 791 ; 180 793 ; 74498 ;
Abstract
A speed reduction device for steering devices comprises a first rotary shaft supported by a housing and rotatable by an external force, a second rotary shaft axially movably fitted to the first rotary shaft and nonrotatable relative thereto, a movable member attached to the housing axially movably but nonrotatably and fitted to the second rotary shaft axially movably and rotatably relative thereto, a first ball screw connecting the second rotary shaft to the housing, and a second ball screw connecting the movable member to the second rotary shaft.