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. 31, 2015
Filed:
Jan. 28, 2013
Applicant:
Jtekt Corporation, Osaka-shi, Osaka, JP;
Inventors:
Jun Hamakita, Kashihara, JP;
Michitoshi Mitsumaru, Sakurai, JP;
Assignee:
Jtekt Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 55/17 (2006.01); F16H 55/22 (2006.01); B21D 53/28 (2006.01); B21K 1/30 (2006.01); B23P 15/14 (2006.01); F16H 55/08 (2006.01);
U.S. Cl.
CPC ...
F16H 55/22 (2013.01); F16H 55/0853 (2013.01);
Abstract
Each tooth of a worm wheel has a first tooth flank in which a helical surface portion is arranged on one side in a rotational axis direction of the worm wheel and a concavely curved surface portion is arranged on the other side in the rotational axis direction, and a second tooth flank in which a concavely curved surface portion is arranged on the one side in the rotational axis direction and the helical surface portion is arranged on the other side in the rotational axis direction.