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:
Apr. 11, 2017
Filed:
Feb. 19, 2014
Applicant:
Mabuchi Motor Co., Ltd., Matsudo, JP;
Inventors:
Kiyoto Itou, Matsudo, JP;
Kazuyuki Yamamoto, Matsudo, JP;
Assignee:
MABUCHI MOTOR CO., LTD., Matsudo, Chiba, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 1/16 (2006.01); F16H 55/08 (2006.01); F16H 57/04 (2010.01);
U.S. Cl.
CPC ...
F16H 1/16 (2013.01); F16H 55/0853 (2013.01); F16H 57/0464 (2013.01); F16H 57/0498 (2013.01); Y10T 74/19828 (2015.01);
Abstract
A worm gear includes a worm formed with a through hole through which a shaft transmitting the rotation of a motor is inserted, and a worm wheel configured to mesh with the worm and transmit the rotation to an output shaft. Given that a normal pitch is denoted by E and a width of a recess in the direction of a worm axis by H, the worm is configured such that H/E≧0.6 (1) is met.