JPS6075930U

JPS6075930U - flat keyboard

Info

Publication number: JPS6075930U
Application number: JP16736183U
Authority: JP
Inventors: 国多　正晃
Original assignee: エスエムケイ株式会社
Priority date: 1983-10-31
Filing date: 1983-10-31
Publication date: 1985-05-28

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図ないし第４図はそれぞれ従来のフラットキーボー
ドの異なる例を示す断面図、第５図は本考案のフラット
キーボードの第１実施例を示す図、第６図は同上第２実
施例を示す断面図、第７図は同上第３実施例を示す断面
図である。１・・・・・・プレート、２・・・・・・固定接点、３
・・・・・・下部ＦＰＣ１５・・・・・・絶縁シート、
６・・・・・・可動接点、７・・・・・・上部ＦＰＣ，
８・・・・・・表面シート、１７・・・・・・凹部、１
８・・・・・・膨出部、１９・・・・・・屈曲部、２０
，２１・・・・・・突起。Figures 1 to 4 are cross-sectional views showing different examples of conventional flat keyboards, Figure 5 is a diagram showing a first embodiment of the flat keyboard of the present invention, and Figure 6 is a diagram showing a second embodiment of the same. 7 is a sectional view showing the third embodiment of the same as above. 1...Plate, 2...Fixed contact, 3
...Lower FPC15...Insulation sheet,
6...Movable contact, 7...Upper FPC,
8... Surface sheet, 17... Concave portion, 1
8...Bulging part, 19...Bending part, 20
, 21...protrusion.

Claims

[Scope of utility model registration request]

(1) On the upper surface of the plate, a lower flexible printed board with fixed contacts on the upper surface, an insulating sheet with through holes at the contact points, an upper flexible printed board with movable contacts on the lower surface, and a top sheet are sequentially laminated. In the flat keyboard, a recess is formed on the upper surface of the plate at a location corresponding to the fixed contact, and a portion of the flexible printed board where the fixed contact is provided faces the recess and a downward bulge. What is claimed is: 1. A flat keyboard, characterized in that the bulge has a bent portion at the proximal end thereof.

(2) The flat (3) plate according to claim 1, wherein the bulging portion is provided with a projection protruding downward so as to come into contact with the recessed portion, substantially at the center of the bulging portion, is provided with the recessed portion. 2. The flat keyboard according to claim 1, wherein the flat keyboard is provided with a projection projecting upward so as to come into contact with the bulge portion, substantially at the center of the keyboard.