JPH0171836U

JPH0171836U -

Info

Publication number: JPH0171836U
Application number: JP1987167284U
Authority: JP
Priority date: 1987-10-30
Filing date: 1987-10-30
Publication date: 1989-05-15

Description

[Brief explanation of drawings]

第１図は本考案の一実施例に従つたクリツク式
膜型状キーボードスイツチの概念的要部断面構成
図、第２図及び第３図は押圧操作力の付与態様に
よつてもクリツク用金属板が確実なクリツク感を
以つて動作する状態の説明図、第４図は押圧操作
力付与用の突起の他の手段を有するキーボードス
イツチの同様な概念的要部断面構成図、そして、
第５図は従来構造に従つたクリツク式膜型状キー
ボードスイツチの概念的要部断面構成図である。１：絶縁ベースシート、２，２Ａ：接点パター
ン、３：絶縁スペーサ、３Ａ：透孔、４：クリツ
ク用金属板、５：操作シート、５Ａ：成形突起。 FIG. 1 is a conceptual cross-sectional view of the essential parts of a click-type membrane-type keyboard switch according to an embodiment of the present invention, and FIGS. An explanatory diagram of a state in which the board operates with a reliable click feeling, FIG. 4 is a similar conceptual cross-sectional configuration diagram of the main part of a keyboard switch having other means of protrusions for applying pressing operation force, and
FIG. 5 is a conceptual cross-sectional view of the essential parts of a click-type membrane type keyboard switch according to the conventional structure. 1: Insulating base sheet, 2, 2A: Contact pattern, 3: Insulating spacer, 3A: Through hole, 4: Metal plate for click, 5: Operation sheet, 5A: Molded protrusion.

Claims

[Scope of utility model registration request]

An operating sheet is placed on an insulating base sheet on which a required pair of contact patterns are formed, via an insulating spacer with a through hole in the corresponding part of the contact pattern, and is reversed and returned in response to the application and release of operating force. In the keyboard switch, a click metal plate is disposed within the through hole to sense the on/off operation of the switch by contacting and separating the two contact patterns. 1. A keyboard switch characterized in that a protrusion arranged so as to be able to come into contact with the top of a metal plate is integrally formed on the back surface of the operation sheet by molding the operation sheet.