ROTARY SWITCH DEVICE

Japanese Patent JP2017208202

A

PROBLEM TO BE SOLVED: To provide a rotary switch device capable of maintaining preferred contact performance for a long time by preventing variation of a contact pressure between contact points.SOLUTION: A rotary switch device comprises: a terminal base 3 in which a central part contact point 1 and a fixing contact point are fixed; a rotation operation member 4 that is rotatable to the terminal base; a plate-like movable contact pint member 7 that includes a contact projection part 5 pressure-welded to the central part contact point in one end, and a contact surface 6 with the fixing contact point in the other end, and that allows between of the central part contact point and the fixing contact point to be short-circuited at a conductive rotation position; and compression coil springs 10 and 10 in which one end is supported by a spring housing hole 8 and the other end energizes the contact projection part and the contact surface to the terminal base side. In a bottom pat of the spring housing hole, a bowl part 11 of which a bottom surface is formed in a circular form having a diameter almost similar to a coil outer diameter in a supported end of a compression coil spring or a polygonal shape having an inscription circle with the circular form, and which is gradually expanded toward an opening edge.SELECTED DRAWING: Figure 5

OKADA TAKAHIRO

JP2016099041A

November 24, 2017

May 17, 2016

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ALPHA CORP

H01H19/02; B60R16/02

JP2017208201A	2017-11-24
JP2015103495A	2015-06-04

WO2015163430A1

2015-10-29

Masao Yamakawa
Kawaoka Hideo

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