JPH0269435U

JPH0269435U -

Info

Publication number: JPH0269435U
Application number: JP14840288U
Authority: JP
Priority date: 1988-11-16
Filing date: 1988-11-16
Publication date: 1990-05-25

Description

[Brief explanation of the drawing]

第１図および第２図は実施例を示し、第１図は
キー構造の要部平面図、第２図はそのＡ−Ａ断面
図、第３図は従来例を示す要部断面図である。１０……回路基板、１１……可動接点部材、１
３……固定接点、１４……押圧部、１５……第１
の空気抜き路、１５ａ……外部口、１６……第２
の空気抜き路、１７……空気溜室。 1 and 2 show an embodiment, FIG. 1 is a plan view of the main part of the key structure, FIG. 2 is a sectional view taken along line A-A, and FIG. 3 is a sectional view of the main part showing a conventional example. . 10... Circuit board, 11... Movable contact member, 1
3... Fixed contact, 14... Pressing part, 15... First
air vent passage, 15a... external opening, 16... second
Air vent passage, 17...Air reservoir chamber.

Claims

[Scope of Claim for Utility Model Registration] A movable contact member having a pressing portion; a fixed contact member having a contact point on which the movable contact member is disposed and facing away from the pressing portion such that the pressing portion can approach and separate; a first air vent passage through which air in the pressing part flows in response to a pressing operation of the pressing part; an air chamber surrounding an external opening of the first air vent passage; and an air chamber in which the air in the air chamber flows to a place other than the pressing part. A key structure comprising: a second circulating air vent passage;