JPS6170333U

JPS6170333U -

Info

Publication number: JPS6170333U
Application number: JP15554284U
Authority: JP
Priority date: 1984-10-15
Filing date: 1984-10-15
Publication date: 1986-05-14

Description

[Brief explanation of the drawing]

第１図は本考案の実施例を示す縦断面（第３図
のＸ−Ｘ′断面）図、第２図Ａは押釦１の底面斜
視図、第２図Ｂはプリント基板４の固定接点部分
の上面斜視図、第３図は本考案による押釦スイツ
チを集合したキーボードの要部組立斜視図、第４
図は従来例の縦断面図である。１…押釦、２…ゴムばね、２ａ…ゴムシート、
３ａ，３ｂ，３ｃ，３ｄ…可動接点、４…プリン
ト基板、５ａ，５ｂ，５ｃ，５ｄ…固定接点、５
ａ_１，５ａ_２，５ｂ_１，５ｂ_２，５ｃ_１，５ｃ_２，５ｄ_１，５ｄ_２…双子接点、７…押釦、８…表
面板、９…ゴムばね、１０…可動接点、１１…固
定接点。 1 is a vertical cross-sectional view (X-X' section in FIG. 3) showing an embodiment of the present invention, FIG. 2A is a bottom perspective view of the push button 1, and FIG. 2B is a fixed contact portion of the printed circuit board 4. FIG. 3 is an assembled perspective view of the main parts of a keyboard in which push button switches according to the present invention are assembled; FIG.
The figure is a longitudinal sectional view of a conventional example. 1...Push button, 2...Rubber spring, 2a...Rubber sheet,
3a, 3b, 3c, 3d...Movable contact, 4...Printed circuit board, 5a, 5b, 5c, 5d...Fixed contact, 5
a ₁ , 5a ₂ , 5b ₁ , 5b ₂ , 5c ₁ , 5c ₂ , 5d ₁ , 5d ₂ ... twin contacts, 7 ... push button, 8 ... surface plate, 9 ... rubber spring, 10 ... movable contact, 11 ... fixed contact.

Claims

[Scope of utility model registration request]

Four movable contacts are independently provided on the rectangular diagonals of the bottom surface of the operating part of a rubber sheet whose periphery is a spring part, and four movable contacts are provided on a printed circuit board overlaid with the rubber sheet, facing the movable contacts. A push button contact mechanism having two sets of make contacts, characterized in that a fixed contact consisting of twin contacts is provided, and the twin contacts of the diagonal fixed contacts are connected in parallel to each other.