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.

Date of Patent:
Mar. 20, 2018

Filed:

Feb. 28, 2014
Applicant:

Nidec Sankyo Corporation, Sawa-gun, Nagano, JP;

Inventors:

Mamoru Yamaoka, Nagano, JP;

Takafumi Kasuga, Nagano, JP;

Yuji Shingu, Nagano, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 7/116 (2006.01); H02K 7/08 (2006.01); F16D 3/04 (2006.01);
U.S. Cl.
CPC ...
H02K 7/1166 (2013.01); H02K 7/081 (2013.01); F16D 3/04 (2013.01);
Abstract

A motor device may include a motor comprising a motor shaft protruded from a motor main body; a worm gear connected with the motor shaft through a coupling; a worm wheel engaged with the worm gear; and a frame on which the motor, the worm gear and the worm wheel are mounted. The coupling may include a motor side coupling part; a transmission member; and a worm gear side coupling part. The motor side coupling part and the transmission member may be relatively movable in a first direction perpendicular to the axial line direction. The transmission member and the worm gear side coupling part may be relatively movable in a second direction perpendicular to the axial line direction and intersecting the first direction. A compression coil spring may be disposed between the transmission member and an end part of the worm gear.


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