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:
Mar. 19, 2013
Filed:
Aug. 23, 2010
Applicants:
Toshihiro Asakura, Chiryu, JP;
Takashi Hara, Toyokawa, JP;
Masayoshi Asakura, Okazaki, JP;
Inventors:
Assignee:
JTEKT Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B62D 5/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
In an electric power steering system, multiple cutouts () are formed in a flange portion () formed on an axial end portion () of a ball screw nut () of a ball screw device that drives a rack shaft. In addition, a motor shaft () has a thin-plate portion () that extends on the radially outer side of the ball screw nut (). When the thin-plate portion () that extends from the motor shaft () is swaged into the cutouts () that serve as engagement recesses that have side walls in the circumferential direction, the rotation of the ball screw nut () relative to the motor shaft () is restricted.