JPH0481426U

JPH0481426U -

Info

Publication number: JPH0481426U
Application number: JP12430790U
Authority: JP
Priority date: 1990-11-28
Filing date: 1990-11-28
Publication date: 1992-07-15
Anticipated expiration: 2005-11-28
Also published as: JP2531366Y2

Description

[Brief explanation of drawings]

第１図〜第３図は本考案の一実施例の説明図で
、第１図はメンブレンスイツチの平面図、第２図
は第１図のＢ−Ｂ線の断面図、第３図は第１、第
２のベースフイルムの各突出部を外方に開いた状
態の斜視図、第４図〜第８図は従来例の説明図で
、第４図はメンブレンスイツチの接点部を示す斜
視図、第５図は第１、第２のベースフイルムが積
層された状態を示す斜視図、第６図はメンブレン
スイツチの平面図、第７図は第６図Ａ−Ａ線の断
面図、第８図は第１、第２のベースフイルムの突
出部を外方に開いた状態の斜視図である、１……第１のベースフイルム、２……切欠き、
３……突出部、４……パターン、６……第１の絶
縁層、７……第２のベースフイルム、８……切欠
き、９……突出部、１０……パターン、１２……
第２の絶縁層、１５，１６……延長部。 1 to 3 are explanatory diagrams of one embodiment of the present invention, in which FIG. 1 is a plan view of a membrane switch, FIG. 2 is a sectional view taken along line B-B in FIG. 1, and FIG. 1. A perspective view of the second base film with its protrusions opened outward; FIGS. 4 to 8 are explanatory views of the conventional example; FIG. 4 is a perspective view showing the contact portion of the membrane switch; , FIG. 5 is a perspective view showing a state in which the first and second base films are laminated, FIG. 6 is a plan view of the membrane switch, FIG. 7 is a sectional view taken along line A-A in FIG. 6, and FIG. The figure is a perspective view of the first and second base films with their protruding parts opened outward, 1...first base film, 2...notch,
3... Protrusion, 4... Pattern, 6... First insulating layer, 7... Second base film, 8... Notch, 9... Protrusion, 10... Pattern, 12...
Second insulating layer, 15, 16...extension part.

Claims

[Scope of utility model registration request]

A first base film having a pattern on one side and a first insulating layer covering the pattern; a second base film having a pattern on one side and a second insulating layer covering the pattern; disposed facing each other with the first and second insulating layers interposed therebetween;
In the membrane switch, a protrusion formed by providing a notch in each base film is formed to expose the pattern and protrude outside both insulating layers so as not to face each other. 1. A membrane switch characterized in that an extension part is provided that extends in the distal direction beyond the base of each of the protrusions of the second base film.