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. 08, 2020
Filed:
Jul. 05, 2017
Nidec-shimpo Corporation, Kyoto, JP;
Nidec Corporation, Kyoto, JP;
Kikuo Okamura, Kyoto, JP;
Takuro Yonemura, Kyoto, JP;
Hitoshi Inoue, Kyoto, JP;
Guo-Jhih Yan, Kyoto, JP;
Keng-Chang Wu, Kyoto, JP;
Hsiu-Ying Lin, Kyoto, JP;
NIDEC-SHIMPO CORPORATION, Kyoto, JP;
NIDEC CORPORATION, Kyoto, JP;
Abstract
A power unit comprises: a wave gear speed reducer, a rotary shaft extending in the axial direction; a rotor unit that rotates integrally with the rotary shaft; a stator unit disposed facing the rotor unit; and a motor casing to which the stator unit is secured. The motor casing has a second cover that covers the rotor unit and the stator unit from the other side in the axial direction. The rotary shaft extends toward the other side in the axial direction, penetrates the second cover, and is connected to a cam. The second cover has a support part that extends toward the other side in the axial direction, supports the rotary shaft in a rotatable manner, and is positioned in a flexible cylindrical part of an external gear.