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:
Jul. 03, 2007
Filed:
Dec. 31, 2003
Toshihiro Fukuda, Maebashi, JP;
Hiroshi Eda, Maebashi, JP;
Toshihiro Fukuda, Maebashi, JP;
Hiroshi Eda, Maebashi, JP;
NSK, Ltd., Tokyo, JP;
Abstract
An electrically driven power steering apparatus is structured such that a large impact on a rack shaft () occurs upon an impingement of a steering stopper, and, even when an axial force acting on a ball bearing () of a presser member () becomes zero, a rotation of the presser member () is hindered by caulking c at a thin plate member (). Therefore, the presser member () does not slacken, and a predetermined axial force can be given again to the ball bearing () when the impact dissipates. The thus structured power steering apparatus exhibiting, though the cost is low, an excellent shockproof characteristic and capable of preventing the bearing from coming off a ball screw nut, can be provided.