JPH02138823U - - Google Patents
Info
- Publication number
- JPH02138823U JPH02138823U JP4764589U JP4764589U JPH02138823U JP H02138823 U JPH02138823 U JP H02138823U JP 4764589 U JP4764589 U JP 4764589U JP 4764589 U JP4764589 U JP 4764589U JP H02138823 U JPH02138823 U JP H02138823U
- Authority
- JP
- Japan
- Prior art keywords
- wound coil
- coil portion
- membrane sheet
- tightly wound
- diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012528 membrane Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 4
Description
第１図は本考案の実施例を示す図、第２図は本
考案の実施例に用いるコイルスプリングを示す図
、第３図は本考案の実施例の押下特性を示す図、
第４図は従来のキースイツチを示す図である。
図において、１……ハウジング、２……キート
ツプ、３……スライダー、４……サポートパネル
、５……メンブレンシート、１０……コイルスプ
リング、を示す。
FIG. 1 is a diagram showing an embodiment of the present invention, FIG. 2 is a diagram showing a coil spring used in the embodiment of the present invention, and FIG. 3 is a diagram showing the pressing characteristics of the embodiment of the present invention.
FIG. 4 is a diagram showing a conventional key switch. In the figure, 1... Housing, 2... Key top, 3... Slider, 4... Support panel, 5... Membrane sheet, 10... Coil spring.
Claims (1)
の接点部を押圧し閉成させるキースイツチにおい
て、 メンブレンシート５の接点部を押圧する小径の
密着巻コイル部１０ａと、該小径密着巻コイル部
１０ａの一方の端部に接続して形成され、スイツ
チハウジング１に固定される大径の密着巻コイル
部１０ｂと、前記小径密着巻コイル部１０ａの他
端に接続して形成された中径の粗巻コイル部１０
ｃとよりなるコイルスプリング１０をメンブレン
シート５とキートツプ２との間に挿入したことを
特徴とするキースイツチ。[Scope of claim for utility model registration] By pressing the key top 2, the membrane sheet 5
In a key switch that presses and closes the contact portion of the membrane sheet 5, a small-diameter tightly wound coil portion 10a that presses the contact portion of the membrane sheet 5 is connected to one end of the small-diameter tightly wound coil portion 10a. A large-diameter tightly wound coil portion 10b fixed to the housing 1 and a medium-diameter coarsely wound coil portion 10 connected to the other end of the small-diameter tightly wound coil portion 10a.
A key switch characterized in that a coil spring 10 consisting of c is inserted between a membrane sheet 5 and a key top 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4764589U JPH02138823U (en) | 1989-04-25 | 1989-04-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4764589U JPH02138823U (en) | 1989-04-25 | 1989-04-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02138823U true JPH02138823U (en) | 1990-11-20 |
Family
ID=31563757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4764589U Pending JPH02138823U (en) | 1989-04-25 | 1989-04-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02138823U (en) |
-
1989
- 1989-04-25 JP JP4764589U patent/JPH02138823U/ja active Pending
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