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:
Dec. 01, 2015
Filed:
Apr. 24, 2012
Seiji Ueno, Gunma, JP;
Toshiyuki Arai, Gunma, JP;
Ryota Sugihara, Gunma, JP;
NSK LTD, Tokyo, JP;
Abstract
A lightweight and low cost gear housing for a steering gear unit is achieved. Together with forming an outward-facing flange shaped convex engagement sectionaround the middle section in the axial direction of a rack shaft, a gear housing is constructed that comprises a pinion-side housing, a non-pinion-side housing, and an intermediate cylindrical section. As a result, movement of the rack shafttoward the pinion side and the non-pinion side is restricted by both ends of the pinion-side housing. Therefore, portions that require large strength can be limited to the pinion-side housingthat is short in the width direction of the vehicle, so by reducing the wall thickness of the intermediate cylindrical section, or by making the intermediate cylindrical sectionusing a flexible material, it is possible to make the member lightweight, as well as processing become easier, so it becomes possible to reduce the manufacturing cost.