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. 04, 2017
Filed:
Nov. 06, 2015
Jtekt Corporation, Osaka-shi, Osaka, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Nobuyuki Taoka, Sakai, JP;
Yoshiyuki Maenaka, Kashihara, JP;
Nariaki Sakamoto, Yamatokooriyama, JP;
Hideo Kometani, Nara, JP;
Masashi Fujimoto, Kashihara, JP;
Agen Nishikido, Kashihara, JP;
Isao Shintani, Kashihara, JP;
Takumitsu Otani, Kashihara, JP;
Hayato Miyakawa, Wako, JP;
JTEKT CORPORATION, Osaka, JP;
HONDA MOTOR CO., LTD., Tokyo, JP;
Abstract
A rack-and-pinion steering system includes a pinion shaft having pinion teeth, a rack shaft on which rack teeth are formed which mesh with the pinion teeth; and a rack bush which supports the rack shaft slidably in an axial direction thereof. An outer circumferential surface of the rack shaft includes a first area which is a concave formed on an outer circumferential surface of the rack shaft and extending in the axial direction and a second area which is an area of the outer circumferential surface excluding the first area and lies adjacent to an end portion of the first area in the axial direction. The rack teeth are formed in the first area. A chamfered portion or a rounded portion is provided on a boundary between the end portion of the first area and the second area to chamfer or round a corner portion on the boundary.