Title:
STEERING RACK AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2015/111595
Kind Code:
A1
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 radially lateral 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.
Inventors:
MIZUSHIMA YUUKI (JP)
HAGIWARA NOBUYUKI (JP)
KOBAYASHI KAZUTO (JP)
HAGIWARA NOBUYUKI (JP)
KOBAYASHI KAZUTO (JP)
Application Number:
PCT/JP2015/051458
Publication Date:
July 30, 2015
Filing Date:
January 21, 2015
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
B21K1/76; B62D3/12; F16H19/04
Foreign References:
| JP2014005839A | 2014-01-16 | |||
| JPS5773268A | 1982-05-07 | |||
| JP2008137473A | 2008-06-19 | |||
| DE2458320A1 | 1976-06-16 | |||
| US20110204588A1 | 2011-08-25 | |||
| JPH105808A | 1998-01-13 | |||
| JP2001079639A | 2001-03-27 | |||
| JP3442298B2 | 2003-09-02 | |||
| JP2006103644A | 2006-04-20 | |||
| JP2008138864A | 2008-06-19 |
Other References:
See also references of EP 3098138A4
Attorney, Agent or Firm:
Eikoh Patent Firm, P. C. et al. (JP)
Patent business corporation glory patent firm (JP)
Patent business corporation glory patent firm (JP)
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