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:
Nov. 22, 2011

Filed:

Dec. 05, 2005
Applicants:

Shigeru Kanehara, Saitama, JP;

Toru Yagasaki, Saitama, JP;

Inventors:

Shigeru Kanehara, Saitama, JP;

Toru Yagasaki, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16G 1/00 (2006.01); F16G 5/00 (2006.01); F16G 1/21 (2006.01); F16G 1/22 (2006.01); F16G 5/16 (2006.01); F16H 55/56 (2006.01); B23Q 17/00 (2006.01); B23P 11/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

In a metal ring for a metal belt of a belt type continuously variable transmission, a relationship is established between a compressive residual stress of a metal ring of an innermost layer imparted by a nitriding treatment and a free state radius of the metal ring nondimensionalized by a minimum winding radius. In the relationship, the sum of a compressive residual stress acting on the inner peripheral face of the metal ring, a compressive stress due to flexure and a contact stress does not exceed the elastic deformation limit of the metal ring. The maximum compressive stress of the metal ring does not become excessive, and an abrasion resistance of the surfaces of the metal ring is guaranteed.


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