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.:

US 11135666 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 05, 2021

Filed:

Nov. 26, 2018
Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota, JP;

Inventors:

Toshitaka Suzuki, Okazaki, JP;

Takeshi Endoh, Toyota, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23F 19/00 (2006.01); B21K 1/30 (2006.01); F16H 55/17 (2006.01); B23F 23/00 (2006.01); F16H 55/08 (2006.01);
U.S. Cl.
CPC ...
B23F 19/002 (2013.01); B21K 1/30 (2013.01); F16H 55/17 (2013.01); B23F 23/003 (2013.01); F16H 55/088 (2013.01);
Abstract

A tooth shape of the first tooth-shaped die part is formed have a constant tooth width from an upper end to a lower end and to correspond to a tooth width of a part in which a desired crowning has been produced. A tooth shape of the second tooth-shaped die part is formed to have a constant tooth width from an upper end to a lower end and to correspond to a tooth width of a central part, which is a part other than the part in which the desired crowning has been produced. A crowning forming method includes the steps of: forming a tooth shape on an outer circumference of the material by the tooth shape of the first tooth-shaped die part; and pressing the central part of the tooth shape of the material against the tooth shape of the inner circumference of the second tooth-shaped die part.


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Suzuki, Toshitaka. (2021). Crowning forming method and crowning forming apparatus (U.S. Patent No. 11135666). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11135666

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