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:
Dec. 16, 2014
Filed:
Mar. 27, 2009
Shinji Kitaoka, Tokai, JP;
Keisuke Atsumi, Anjo, JP;
Koji Takaira, Okazaki, JP;
Seiji Hiroshima, Okazaki, JP;
Takaaki Shimizu, Nagoya, JP;
Shinji Kitaoka, Tokai, JP;
Keisuke Atsumi, Anjo, JP;
Koji Takaira, Okazaki, JP;
Seiji Hiroshima, Okazaki, JP;
Takaaki Shimizu, Nagoya, JP;
Aisin AI Co., Ltd., Aichi-ken, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Abstract
A method of manufacturing a helical gear, includes a gear cutting process for forming a roughly-processed gear by applying a gear cutting to an outer circumferential surface of a blank, and a tooth surface forming process for forming a tooth surface by pressing a rolling die against a roughly-processed tooth surface of the roughly-processed gear, wherein a length of a portion of the roughly-processed tooth surface, to which a plastic deformation is applied by the rolling die, in a face width direction is formed to be shorter than a length of a face width of the roughly-processed tooth surface.