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. 14, 2015
Filed:
Jul. 11, 2012
Koji Sato, Iwata, JP;
Takahide Saito, Iwata, JP;
Masafumi Nakakoji, Iwata, JP;
Naotsugu Kitayama, Iwata, JP;
Koji Sato, Iwata, JP;
Takahide Saito, Iwata, JP;
Masafumi Nakakoji, Iwata, JP;
Naotsugu Kitayama, Iwata, JP;
NTN Corporation, Osaka, JP;
Abstract
A motor assembly includes an electric motor and a speed reducing mechanism. The speed reducing mechanism includes: a housing; an internal gear supported by the inner diameter surface of the housing; eccentric disks capable of rotating inside the internal gear when the rotating shaft of the electric motor rotates; an output shaft having at the axial end thereof a cage rotatably disposed between the internal gear and the eccentric disks, the cage being arranged coaxially with the rotation axis of the eccentric disks; and rolling elements retained by the cage and meshing with internal teeth of the internal gear, the number of the rolling elements being smaller than the number of the internal teeth. The eccentric disks are provided on the rotating shaft of the electric motor.