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:
Mar. 06, 2018
Filed:
Dec. 03, 2014
Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa-ken, JP;
Takuma Kinoto, Kanagawa, JP;
Tatsuya Imai, Kanagawa, JP;
Masahide Kimura, Kanagawa, JP;
Hideo Sakuyama, Kanagawa, JP;
Koichi Murata, Kanagawa, JP;
Makoto Abe, Kanagawa, JP;
NISSAN MOTOR CO., LTD., Yokohama-shi, JP;
Abstract
A rotor structure for a rotary electric machine in which an inner surface of a hollow rotor core and an outer surface of a shaft inserted into a hole of the rotor core are fitted together by mutual engagement between a projection and a recess to compose a rotor, the rotor structure including: a first retainer brought into contact with one end of the rotor core; and a second retainer brought into contact with a surface of the first retainer opposite to a surface in contact with the rotor core so as to fix the first retainer and the rotor core to the shaft, wherein a coefficient of static friction of a first sliding surface between the first retainer and the second retainer is smaller than any other sliding surface provided in the rotor.