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. 21, 2020
Filed:
Nov. 27, 2017
Jtekt Corporation, Osaka-shi, Osaka, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Masayoshi Asakura, Okazaki, JP;
Tatsuhiro Yamamoto, Okazaki, JP;
Masafumi Takahashi, Toyota, JP;
Yoshiaki Asahara, Nagoya, JP;
JTEKT CORPORATION, Osaka, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A steering apparatus includes a steered shaft; a rack housing; a ball screw nut; a bearing disposed between an inner peripheral surface of the rack housing and an outer peripheral surface of the ball screw nut, the bearing supporting the ball screw nut such that the ball screw nut is rotatable with respect to the rack housing; and a tubular rack boot covering an axial end portion of the rack housing. The rack housing includes a partition wall protruding radially inward from a cylindrical inner peripheral surface of the rack housing and separating a ball screw chamber housing the ball screw nut and an inner chamber of the rack boot. The partition wall has a through-hole through which the steered shaft extends, and a drain passage provided vertically below the through-hole and providing communication between the ball screw chamber and the inner chamber of the rack boot.