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:
Feb. 19, 2019
Filed:
Apr. 18, 2016
Applicant:
Ntn Corporation, Osaka-shi, Osaka, JP;
Inventors:
Tomoaki Makino, Iwata, JP;
Ryou Yukishima, Iwata, JP;
Hidenori Karasawa, Iwata, JP;
Isao Hirai, Iwata, JP;
Assignee:
NTN CORPORATION, Osaka-shi, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K 1/02 (2006.01); F16H 1/08 (2006.01); F16H 57/023 (2012.01); H02K 7/116 (2006.01); B60L 15/20 (2006.01); F16H 55/14 (2006.01); F16H 57/02 (2012.01); F16H 57/028 (2012.01); B60K 7/00 (2006.01); H02K 5/173 (2006.01);
U.S. Cl.
CPC ...
B60K 1/02 (2013.01); B60L 15/20 (2013.01); F16H 1/08 (2013.01); F16H 55/14 (2013.01); F16H 57/023 (2013.01); F16H 57/02004 (2013.01); F16H 57/028 (2013.01); H02K 7/116 (2013.01); B60K 2007/0038 (2013.01); B60K 2007/0061 (2013.01); B60L 2220/46 (2013.01); H02K 5/1732 (2013.01);
Abstract
Helical gears in gear trains of speed reducers generate thrust forces in directions not to separate a speed reducer casing which has an axial three-piece structure, whereby leakage of lubricant oil from between separated surfaces in the speed reducer casing is prevented. Output gear which generates large thrust force on the final stage in each gear train of the speed reducers both generated inward forces, so that the center casing does not receive forces in directions in which the left and the right casings is separated therefrom.