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1. (WO2018158870) MOTOR GENERATOR

Pub. No.:    WO/2018/158870    International Application No.:    PCT/JP2017/008052
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Thu Mar 02 00:59:59 CET 2017
IPC: H02K 7/10
F16H 55/36
Applicants: MITSUBISHI ELECTRIC CORPORATION
三菱電機株式会社
Inventors: HASEGAWA Kazuya
長谷川 和哉
SAKAGUCHI Masayuki
坂口 将之
SASAKI Daisuke
佐々木 大輔
Title: MOTOR GENERATOR
Abstract:
Provided is a motor generator with which it is possible to prevent a pulley from falling off from a rotating shaft even when a nut that fastens the pulley to the rotating shaft has loosened. A motor generator (1) in which: with a pulley (12) in a state of being engaged to the outer peripheral surface of one end of a rotating shaft (11), the pulley (12) is fastened to the rotating shaft (11) by a nut (14) that is screwed onto a male screw part (11b) provided to the outer peripheral surface of the rotating shaft (11) further to one axial-direction side (X1) than is the engagement part of the pulley (12); and at the portion of the rotating shaft (11) that is further to the one axial-direction side (X1) than is the nut (14), there is attached a pulley fall-off prevention member (9) that prevents the pulley (12) from falling off from the rotating shaft (11) when the nut (14) has loosened.