JPH03101829U

JPH03101829U -

Info

Publication number: JPH03101829U
Application number: JP1042690U
Authority: JP
Priority date: 1990-02-05
Filing date: 1990-02-05
Publication date: 1991-10-23

Description

[Brief explanation of drawings]

第１図及び第３図は、本考案の実施例を説明す
る図であつて、第１図はキートツプメンブレンス
イツチの構造を説明する断面図、第２図はキート
ツプメンブレンスイツチの構成及び各部材の形状
を説明する分解斜視図、第３図はキートツプメン
ブレンスイツチの斜視図である。また、第４図な
いし第６図は、それぞれ従来例を説明する図であ
つて、第４図はメカニカルスイツチの側面図、第
５図は単機能スイツチの断面図、第６図はシーソ
ースイツチの断面図及びシーソーキーの平面図で
ある。３１……キートツプメンブレンスイツチ、３２
……基台、３３……メンブレンスイツチ部、３５
……操作キー、３６……玉継手部、３７……空孔
部、３９……電極シート、４２……接点、４３…
…スイツチ部、４４……クリツク板、４８……玉
継手、４９……球部、Ａ，Ｂ，Ｃ，Ｄ……押下場
所（押下部）。 1 and 3 are diagrams explaining an embodiment of the present invention, in which FIG. 1 is a sectional view explaining the structure of a keytop membrane switch, and FIG. 2 is a sectional view explaining the structure of the keytop membrane switch and each FIG. 3 is an exploded perspective view illustrating the shapes of the members, and FIG. 3 is a perspective view of the key top membrane switch. 4 to 6 are diagrams explaining conventional examples, respectively, in which FIG. 4 is a side view of a mechanical switch, FIG. 5 is a cross-sectional view of a single-function switch, and FIG. 6 is a view of a seesaw switch. FIG. 2 is a cross-sectional view and a plan view of the seesaw key. 31...Key top membrane switch, 32
... Base, 33 ... Membrane switch part, 35
...Operation key, 36...Ball joint part, 37...Hole part, 39...Electrode sheet, 42...Contact, 43...
...Switch part, 44...Click plate, 48...Ball joint, 49...Ball part, A, B, C, D...Pushing location (pushing part).

Claims

[Scope of utility model registration request]

A plurality of switch parts each having contact points provided on opposing surfaces of a pair of electrode sheets supported in a layered manner are provided, and an elastically deformable click plate formed in a dome shape is provided above the switch part. An operation key that covers the upper part of the click plate is provided on the upper part of the membrane switch, and a joint is provided between the operation key and the membrane switch to connect the operation key and the membrane switch to each other in a spherical pair. the switch portion is disposed radially outward of the joint,
A key top membrane switch characterized in that the operation key is provided with a push-down part that contacts a contact point of the switch part at an upper position of the click plate.