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1. (WO2017056601) PUSH SWITCH

Pub. No.:    WO/2017/056601    International Application No.:    PCT/JP2016/069169
Publication Date: Fri Apr 07 01:59:59 CEST 2017 International Filing Date: Wed Jun 29 01:59:59 CEST 2016
IPC: H01H 13/48
H01H 5/30
H01H 13/52
Applicants: ALPS ELECTRIC CO., LTD.
アルプス電気株式会社
Inventors: YASHIMA, Yuki
八島 優貴
SADAMATSU, Izuru
貞松 伊鶴
TAZAWA, Toshihiko
田澤 俊彦
Title: PUSH SWITCH
Abstract:
[Problem] To provide a push switch such that noise reduction can be achieved by suppressing the operating sound generated when a mobile contacting member returns to the initial state. [Solution] The push switch 1 contains a mobile contacting member 20 comprising a metal plate and having a bulging portion 20a that is operably invertible. The push switch 1 has a fixed contacting member 10 provided with: a first fixed contacting portion 10a capable of being in contact with and separated from the mobile contacting member 20; and a second fixed contacting portion 10b provided on an outer edge portion of an internal bottom surface 51a. The push switch 1 is further provided with a vibration-damping member 25 which is electrically conductive and elastically deformable by a operating force lower than the load for the inversion operation of the bulging portion 20a. The bulging portion 20a and the second fixed contacting portion 10b are electrically connected through the vibration-damping member 25. When the mobile contacting member 20 is operated from the initial state, the vibration-damping member 25 is deflected due to elastic deformation while the operating force during the elastic deformation of the vibration-damping member 25 changes so as to increase monotonically. When the mobile contacting member 20 returns from the bulging portion 20a being in an inverted state to the initial state, the vibration-damping member 25 absorbs the vibrations from the mobile contacting member 20.