JPS6060842U

JPS6060842U - keyboard

Info

Publication number: JPS6060842U
Application number: JP15358683U
Authority: JP
Inventors: 藤枝　忠郷; 長倉　恵一
Original assignee: 日本電気株式会社; 日本電信電話株式会社
Priority date: 1983-10-03
Filing date: 1983-10-03
Publication date: 1985-04-27

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図はゴムシートを用いてキーボードにおけるゴムシ
ートの裏面および側面形状の一例を示す図、第２図は従
来のキーボードの断面構成図、第３図は第２図に示す従
来のキーボード構造の問題を説明する図、第４図は本考
案の一実施例を示す断面図である。１′・・・ゴムシート、１ａ′・・・突出部、１ｂ′・
・・空洞部、１ｃ′、１ｄ′・・・空気流動溝、ｌｅ’
・・・流動溝側壁、２′・・・可動接点、３′・・・プ
リント基板、３ａ’・・・通気孔、３ｂ’・・・固定接
点。Fig. 1 is a diagram showing an example of the back and side shapes of a rubber sheet in a keyboard using a rubber sheet, Fig. 2 is a cross-sectional configuration diagram of a conventional keyboard, and Fig. 3 is a diagram of the conventional keyboard structure shown in Fig. 2. FIG. 4, which is a diagram for explaining the problem, is a sectional view showing an embodiment of the present invention. 1'...Rubber sheet, 1a'...Protrusion, 1b'.
...Cavity, 1c', 1d'...Air flow groove, le'
...Flow groove side wall, 2'...Movable contact, 3'...Printed circuit board, 3a'...Vent hole, 3b'...Fixed contact.

Claims

[Scope of utility model registration request]

a rubber sheet having movable contacts on the top surfaces of the inner walls of hollow protrusions arranged in a matrix that are elastically deformed when pressed and released; at least a pair of fixed contacts electrically connected by the movable contacts; a printed circuit board bonded to the sheet; at a position facing the printed circuit board including a side wall of an air flow groove formed to communicate between the hollow protrusions of the rubber sheet, elastic deformation of the hollow protrusions is provided. A keyboard characterized by being provided with a ventilation hole for flowing air.