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:
Jan. 13, 2026
Filed:
Sep. 01, 2021
Applicant:
Nsk Ltd., Tokyo, JP;
Inventors:
Seiichi Moriyama, Gunma, JP;
Tetsuya Kanou, Gunma, JP;
Assignee:
NSK LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D 1/10 (2006.01); B62D 1/20 (2006.01); F16C 3/03 (2006.01); F16D 3/06 (2006.01);
U.S. Cl.
CPC ...
F16D 1/10 (2013.01); B62D 1/20 (2013.01); F16D 3/06 (2013.01); F16C 3/03 (2013.01); F16C 2223/30 (2013.01); F16C 2240/60 (2013.01); F16D 2001/103 (2013.01); Y10T 403/7035 (2015.01);
Abstract
A steering shaft includes an inner shaft including first tooth parts, an outer shaft including second tooth parts, and a resin layer. The resin layer includes a plurality of thick film parts and at least four thin film parts. Each thick film part is disposed with a gap from one of the second tooth parts, and each thin film part contacts both one of the first tooth parts and one of the second tooth parts. At a section orthogonal to a central axis of the inner shaft, the thickness of each thin film part is smaller than the thickness of each thick film part.