Invention Grant
- Patent Title: Steering rack and method for manufacturing the same
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Application No.: US16160139Application Date: 2018-10-15
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Publication No.: US11021184B2Publication Date: 2021-06-01
- Inventor: Yuuki Mizushima , Nobuyuki Hagiwara , Kazuto Kobayashi
- Applicant: NSK LTD.
- Applicant Address: JP Tokyo
- Assignee: NSK LTD.
- Current Assignee: NSK LTD.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2014-009670 20140122
- Main IPC: B62D3/12
- IPC: B62D3/12 ; F16H19/04 ; B21K1/76 ; F16H55/26

Abstract:
A steering rack (11a) meshes with a pinion rotatably driven by the input shaft (6) of a steering gear (5) constituting an automotive steering device. The steering rack (11a) is provided with a an axially extending rod part (15) of round cross section, and a plurality of rack teeth (16) formed on a radial one side surface of an axial portion of the rod part (15), the rack teeth (16) meshing with the pinion. At least one dummy tooth (42) is formed in portions that are axial parts of the rod part (15) and are adjacent to both axial sides of the plurality of rack teeth (16). The dummy tooth (42) has a tooth height less than the rack teeth (16) and does not mesh with the pinion.
Public/Granted literature
- US20190047609A1 STEERING RACK AND METHOD FOR MANUFACTURING THE SAME Public/Granted day:2019-02-14
Information query
IPC分类: