JPH0175939U - - Google Patents
Info
- Publication number
- JPH0175939U JPH0175939U JP1987171609U JP17160987U JPH0175939U JP H0175939 U JPH0175939 U JP H0175939U JP 1987171609 U JP1987171609 U JP 1987171609U JP 17160987 U JP17160987 U JP 17160987U JP H0175939 U JPH0175939 U JP H0175939U
- Authority
- JP
- Japan
- Prior art keywords
- conductor pattern
- membrane
- semiconductor element
- printed wiring
- membrane keyboard
- 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 6
- 239000004020 conductor Substances 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Description
第１図はこの考案の一実施例によるメンブレン
キーボードの電気回路図、第２図はこの考案の一
実施例を示すプリント配線図、第３図は従来のメ
ンブレンキーボードの電気回路図、第４図は従来
のプリント配線図、第５図はメンブレンキーボー
ドの断面図、第６図はメンブレンキーボードの構
成斜視図である。
図において、１５はベース、１６はスイツチ、
１７，１８は導体パターン、１９は回り回路防止
の半導体素子、２０はスイツチ、２１は走査線、
２２は読み取り線、２３は回り回路防止の半導体
素子を示す。
Fig. 1 is an electrical circuit diagram of a membrane keyboard according to an embodiment of this invention, Fig. 2 is a printed wiring diagram showing an embodiment of this invention, Fig. 3 is an electrical circuit diagram of a conventional membrane keyboard, and Fig. 4 5 is a conventional printed wiring diagram, FIG. 5 is a sectional view of a membrane keyboard, and FIG. 6 is a perspective view of the structure of the membrane keyboard. In the figure, 15 is the base, 16 is the switch,
17 and 18 are conductor patterns, 19 is a semiconductor element for preventing circuits, 20 is a switch, 21 is a scanning line,
Reference numeral 22 indicates a reading line, and reference numeral 23 indicates a semiconductor element for preventing a loop circuit.
Claims (1)
配線し、そのプリント配線フイルムを折り曲げも
しくは重ね合わせてなるマトリツクス状に配線さ
れた複数のスイツチを装備したメンブレンキーボ
ードにおいて、導体パターンの一部に回り回路防
止のための半導体素子を実装したことを特徴とす
るメンブレンキーボード。 In membrane keyboards equipped with multiple switches wired in a matrix by printing a conductor pattern on a film base and folding or overlapping the printed wiring film, a part of the conductor pattern is used to prevent circuits. A membrane keyboard characterized by mounting a semiconductor element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987171609U JPH0175939U (en) | 1987-11-10 | 1987-11-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987171609U JPH0175939U (en) | 1987-11-10 | 1987-11-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0175939U true JPH0175939U (en) | 1989-05-23 |
Family
ID=31463591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987171609U Pending JPH0175939U (en) | 1987-11-10 | 1987-11-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0175939U (en) |
-
1987
- 1987-11-10 JP JP1987171609U patent/JPH0175939U/ja active Pending
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