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:
Mar. 14, 2017
Filed:
May. 20, 2015
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Inventor:
Takashi Kiten, Nissin, JP;
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 55/16 (2006.01); F16H 55/08 (2006.01);
U.S. Cl.
CPC ...
F16H 55/0886 (2013.01); F16H 55/08 (2013.01); F16H 55/16 (2013.01); F16H 2055/086 (2013.01); Y10T 74/19972 (2015.01);
Abstract
A gear of a gear device includes a plurality of teeth having tooth surfaces. The tooth surfaces are shaped such that contact length ratios of three or more of the teeth are outside a predetermined range centered on an average value of the contact length ratios of all of the teeth, where the contact length ratio is obtained by dividing a contact length of a tooth contact face by a diagonal length of a plane of action.