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.

Date of Patent:
Aug. 27, 2019

Filed:

Jan. 21, 2015
Applicant:

Nsk Ltd., Tokyo, JP;

Inventors:

Yuuki Mizushima, Fujisawa, JP;

Nobuyuki Hagiwara, Fujisawa, JP;

Kazuto Kobayashi, Fujisawa, JP;

Assignee:

NSK LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B62D 3/00 (2006.01); B62D 3/12 (2006.01); F16H 19/04 (2006.01); B21K 1/76 (2006.01); F16H 55/26 (2006.01);
U.S. Cl.
CPC ...
B62D 3/126 (2013.01); B21K 1/767 (2013.01); F16H 19/04 (2013.01); F16H 55/26 (2013.01);
Abstract

A steering rack meshes with a pinion rotatably driven by the input shaft of a steering gear constituting an automotive steering device. The steering rack is provided with a an axially extending rod part of round cross section, and a plurality of rack teeth formed on a radial one side surface of an axial portion of the rod part, the rack teeth meshing with the pinion. At least one dummy tooth is formed in portions that are axial parts of the rod part and are adjacent to both axial sides of the plurality of rack teeth. The dummy tooth has a tooth height less than the rack teeth and does not mesh with the pinion.


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