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:
Feb. 24, 2015
Filed:
Sep. 29, 2011
Applicant:
Kosuke Yamanaka, Kashihara, JP;
Inventor:
Kosuke Yamanaka, Kashihara, JP;
Assignee:
JTEKT Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 1/24 (2006.01); F16H 25/22 (2006.01); B62D 5/00 (2006.01); B62D 5/04 (2006.01);
U.S. Cl.
CPC ...
F16H 25/2214 (2013.01); B62D 5/001 (2013.01); B62D 5/0448 (2013.01); F16H 25/2223 (2013.01);
Abstract
A ball screw device has a plurality of spiral raceways. One end and the other end of each raceway is connected via a bridge. An annular flange of a ball nut has a plurality of mounting portions at equal intervals in a circumferential direction. A fixing screw is fitted to each mounting portion. The bridges arranged so as to overlap with the annular flange in position in an axial direction are arranged at positions different in the circumferential direction from positions at which the mounting portions are arranged, and are arranged at unequal intervals in the circumferential direction.