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. 01, 2014
Filed:
Jan. 12, 2005
Applicants:
Takayasu Yamazaki, Kyoto, JP;
Shirou Nakano, Osaka, JP;
Inventors:
Takayasu Yamazaki, Kyoto, JP;
Shirou Nakano, Osaka, JP;
Assignee:
JTEKT Corporation, Osaka-Shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 55/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A rack-and-pinion steering apparatus comprises pinion teeth formed according to proper tooth specifications in other aspects under a larger pressure angle, thereby stably offering smooth and comfortable steering feeling over a long time. The module (m), number of teeth (z), tooth depth (h) and helix angle (β) of the pinion teeth () are set within the following ranges, under a pressure angle (α) set within a range of 24° to 30° and a given stroke ratio.