JPS58168029U

JPS58168029U - key switch

Info

Publication number: JPS58168029U
Application number: JP6610782U
Authority: JP
Inventors: 安藤　貞夫
Original assignee: 株式会社山武
Priority date: 1982-05-04
Filing date: 1982-05-04
Publication date: 1983-11-09

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の押ボタンスイッチの正断面図、第２図は
この考案における押ボタンスイッチの一実施例を示す正
断面図、第３図は押ボタンの押圧状態を示す正断面図、
第４図はスイッチ要部の分′解斜視図である。なお図中
同一符号は同一または相当部分を示す。１・・・第１の絶縁板、２・・・第２の絶縁板、３・・
・ス　′ペーサ、４・・・孔、５・・・第１の接点、６
・・・第２の接点、７・・・樹脂板、１１・・・ハウジ
ング、１２・・・孔、１３・・・凸部、１４・・・外側
断部、１５・・・内筒部、１６・・・中筒部、１７・・
・小筒部、１８・・・段部、１９・・・段部、２１・・
・プランジャー、２２・・・押ボタン、２３・・・穴、
２４・・・コイルスプリング、２５・・・突子、−２６
・・・凸部、３０・・・押圧ばね部、３１・・・復帰ば
ね部。FIG. 1 is a front sectional view of a conventional pushbutton switch, FIG. 2 is a front sectional view showing an embodiment of the pushbutton switch of this invention, and FIG. 3 is a front sectional view showing the push button in a pressed state.
FIG. 4 is an exploded perspective view of the main parts of the switch. Note that the same reference numerals in the figures indicate the same or corresponding parts. 1... First insulating board, 2... Second insulating board, 3...
・Spacer, 4...hole, 5...first contact, 6
... second contact, 7 ... resin plate, 11 ... housing, 12 ... hole, 13 ... convex part, 14 ... outer section, 15 ... inner cylinder part, 16...Middle cylinder part, 17...
・Small cylinder part, 18...stepped part, 19...stepped part, 21...
・Plunger, 22...push button, 23...hole,
24...Coil spring, 25...Protrusion, -26
. . . Convex portion, 30 . . . Pressing spring portion, 31 . . . Return spring portion.

Claims

[Claims for Utility Model Registration] (1) Substantially a pair of flexible insulating plates 1.2G are arranged at a predetermined distance from each other, and a pair of flexible insulating plates are disposed on opposing surfaces of these insulating plates. A switch 1 housing 11 is provided above the pair of insulating plates 1 and 2, and a plunger 21 having a push button 22 is slidably supported in this housing. A coil spring 24 is accommodated in the housing 11 at the lower part of the plunger, and from the middle part of the coil spring in the axial direction to the plunger 21 side part, among the pair of contacts 5.6, A key switch in which a pressing spring part 30 for selectively bringing nine contacts into contact with the other contact is formed, and a return spring part 31 for the plunger 21 is formed in a part from the intermediate part toward the insulating plate. (2) The pressing spring portion 30 of the coil spring 24 is formed of a cylindrical spiral portion, and the return spring portion 3
1. A key switch according to claim 1, wherein said coil spring 24 is formed by a trumpet-shaped spiral portion whose diameter gradually increases from the middle portion toward the other end.