JPH02141937U - - Google Patents
Info
- Publication number
- JPH02141937U JPH02141937U JP4953290U JP4953290U JPH02141937U JP H02141937 U JPH02141937 U JP H02141937U JP 4953290 U JP4953290 U JP 4953290U JP 4953290 U JP4953290 U JP 4953290U JP H02141937 U JPH02141937 U JP H02141937U
- Authority
- JP
- Japan
- Prior art keywords
- key
- pair
- keyboard frame
- contact patterns
- piezoelectric film
- 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
- 239000012212 insulator Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
- Pressure Sensors (AREA)
Description
第１図はこの考案の一実施例である鍵スイツチ
を圧電フイルムの一部を剥離して示す斜視図、第
２図は同じくその横断面を鍵及びそのアクチユエ
ータと共に示す断面図、第３図は同じくその鍵ス
イツチを形成した鍵盤フレームに鍵を装着した状
態を示す斜視図、第４図は押鍵時に鍵スイツチの
圧電フイルムのアクチユエータによつて押圧され
る部分に加わる圧力と、それによつて発生する電
圧の例を示す線図である。
１……鍵盤フレーム、２……絶縁体層、３……
対の接点パターン、７……圧電フイルム、１０…
…鍵スイツチ、１１……鍵、１２……アクチユエ
ータ。
Fig. 1 is a perspective view showing a key switch, which is an embodiment of this invention, with a part of the piezoelectric film peeled off, Fig. 2 is a cross-sectional view showing the same cross section together with the key and its actuator, and Fig. 3 is FIG. 4 is a perspective view showing a state in which a key is attached to the keyboard frame that also forms the key switch, and FIG. FIG. 3 is a diagram showing an example of voltages. 1...Keyboard frame, 2...Insulator layer, 3...
Pair of contact patterns, 7...Piezoelectric film, 10...
...key switch, 11...key, 12...actuator.
Claims (1)
電材により互いに近接して離間した対の接点パタ
ーンを各鍵に対応して形成し、該鍵盤フレームの
前記対の接点パターンを形成した絶縁体層上に直
接圧電フイルムを付着してなり、前記鍵盤フレー
ムに装着される各鍵に設けられたアクチユエータ
によつて前記圧電フイルムの前記各鍵に対応する
対の接点パターン上の部分が押圧されるようにし
、該各対の接点パターンからそれに対応する前記
各鍵の操作押圧力に応じた鍵操作情報が得られる
ようにしたことを特徴とする電子鍵盤楽器の鍵ス
イツチ。 A pair of contact patterns spaced close to each other by a conductive material are formed on an insulator layer closely formed on the keyboard frame, corresponding to each key, and an insulator layer on which the pair of contact patterns of the keyboard frame are formed. A piezoelectric film is directly attached on the keyboard frame, and a portion of the piezoelectric film on a pair of contact patterns corresponding to each key is pressed by an actuator provided on each key mounted on the keyboard frame. A key switch for an electronic keyboard instrument, characterized in that key operation information corresponding to the operation pressing force of each of the keys can be obtained from the contact pattern of each pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4953290U JPH02141937U (en) | 1990-05-12 | 1990-05-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4953290U JPH02141937U (en) | 1990-05-12 | 1990-05-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02141937U true JPH02141937U (en) | 1990-11-30 |
Family
ID=31567300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4953290U Pending JPH02141937U (en) | 1990-05-12 | 1990-05-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02141937U (en) |
-
1990
- 1990-05-12 JP JP4953290U patent/JPH02141937U/ja active Pending
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