JPH041913B2 - - Google Patents
Info
- Publication number
- JPH041913B2 JPH041913B2 JP56198390A JP19839081A JPH041913B2 JP H041913 B2 JPH041913 B2 JP H041913B2 JP 56198390 A JP56198390 A JP 56198390A JP 19839081 A JP19839081 A JP 19839081A JP H041913 B2 JPH041913 B2 JP H041913B2
- Authority
- JP
- Japan
- Prior art keywords
- contact
- pressure
- printed circuit
- circuit board
- key
- 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.)
- Expired - Lifetime
Links
Landscapes
- Electrophonic Musical Instruments (AREA)
Description
【発明の詳細な説明】
本発明は、従来の鍵盤装置にアフタータツチ機
能を装備した鍵盤装置に関し、押鍵時に鍵がスト
ツパーフエルト（緩衝材）に当たりその下面に配
設された感圧導電体とプリント基板とにより、押
鍵時の圧力の違いによつて感圧導電体の抵抗値を
変え演奏に効果をもたすようにしたものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a keyboard device in which a conventional keyboard device is equipped with an aftertouch function. and a printed circuit board, the resistance value of the pressure-sensitive conductor is changed depending on the pressure applied when the key is pressed, thereby producing an effect on the performance.
第１図は本発明の一実施例を示す図であり、従
来は鍵盤シヤーシ５にスペーサー９を介して、ゴ
ム接点スイツチ７を結合したプリント基板６を取
付ビス１０で固定し、鍵１を押すとアクチユエー
ター１ａが上記ゴム接点スイツチ７を押えスイツ
チ回路が閉じるのみの構造（これらを総称して、
便宜上主接点という）であつた。この装置のみで
は、押した鍵のみにビブラートをかけたり、音量
変化をもたらしたり或いはベンダーをかけたり等
の修飾効果を通常の演奏で出すことができなかつ
た。 FIG. 1 is a diagram showing an embodiment of the present invention. Conventionally, a printed circuit board 6 to which a rubber contact switch 7 is connected is fixed to a keyboard chassis 5 via a spacer 9 with a mounting screw 10, and a key 1 is pressed. A structure in which the actuator 1a presses the rubber contact switch 7 and closes the switch circuit (these are collectively referred to as
For convenience, it is referred to as the main contact point). With this device alone, it was not possible to produce modifying effects such as applying vibrato, changing the volume, or applying a bender to only the pressed keys during normal performance.
本発明はこのような問題点を解決するために提
供するものである。４は鍵盤シヤーシ５の上に固
定されたプリント基板であり、そのプリント基板
４の上面は、第２図に示すような複数の固定接点
４ａを有している。プリント基板は若干の弾性を
もつている。固定接点４ａに接触するように感圧
導電体３を配設し、感圧導電体３の上にストツパ
ーフエルト２を固定しておく。プリント基板４、
感圧導電体３、ストツパーフエルト２を総称し
て、便宜上主接点という。演奏中に鍵１を押すこ
とによりアクチユエーター１ｂは、ストツパーフ
エルト２に当たる。その時の圧力の違いで感圧導
電体３が、固定接点４ａに及ぼす電気抵抗が変わ
る。第３図に示すように、鍵押圧力が強ければ電
気抵抗値は低く固定接点４ａに電流が流れ易くな
る。この現象を利用して、ビブラート、音量変
化、ベンダー等音楽表現に必要な修飾効果を生み
出し実用価値の大なるものである。 The present invention is provided to solve these problems. 4 is a printed circuit board fixed on the keyboard chassis 5, and the upper surface of the printed circuit board 4 has a plurality of fixed contacts 4a as shown in FIG. Printed circuit boards have some elasticity. A pressure-sensitive conductor 3 is arranged so as to be in contact with the fixed contact 4a, and a stopper felt 2 is fixed on the pressure-sensitive conductor 3. printed circuit board 4,
The pressure-sensitive conductor 3 and the stopper felt 2 are collectively referred to as a main contact for convenience. By pressing key 1 during performance, actuator 1b hits stopper felt 2. The electrical resistance that the pressure-sensitive conductor 3 exerts on the fixed contact 4a changes depending on the difference in pressure at that time. As shown in FIG. 3, if the key pressing force is strong, the electric resistance value is low and current flows easily through the fixed contact 4a. Utilizing this phenomenon, it produces modifier effects necessary for musical expression, such as vibrato, volume changes, benders, etc., and has great practical value.
第１図は、本発明の一実施例を示す側面図、第
２図は、プリント基板４の上面固定接点配置図、
第３図は鍵押圧と電気抵抗値との関係図である。
１……鍵、１ａ，１ｂ……アクチユエータ、１
ｃ……鍵ストツパー、２，８……ストツパーフエ
ルト、３……感圧導電体、４……プリント基板、
４ａ……固定接点、５……鍵盤シヤーシ、６……
プリント基板、７……ゴム接点スイツチ、９……
スペーサ、１０……取付ビス、１１……ばね。
FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is a diagram showing the arrangement of fixed contacts on the top surface of a printed circuit board 4,
FIG. 3 is a diagram showing the relationship between key presses and electrical resistance values. 1...key, 1a, 1b...actuator, 1
c... Key stopper, 2, 8... Stopper felt, 3... Pressure sensitive conductor, 4... Printed circuit board,
4a...Fixed contact, 5...Keyboard chassis, 6...
Printed circuit board, 7... Rubber contact switch, 9...
Spacer, 10...Mounting screw, 11...Spring.
Claims (1)
接点を有し、前記副接点は、複数の鍵が装着され
た鍵盤フレーム上に、導電パターンの一部として
形成された複数の固定接点をもつプリント基板、
感圧導電体、緩衝材を、この順に重ねて配設し、
鍵押圧により前記副接点の感圧導電体の抵抗を変
化させるようにしたことを特徴とする鍵盤装置。1. It has a main contact for main performance and a sub-contact for aftertouch, and the sub-contact includes a plurality of fixed contacts formed as part of a conductive pattern on a keyboard frame on which a plurality of keys are mounted. printed circuit board,
The pressure-sensitive conductor and cushioning material are stacked in this order,
A keyboard device characterized in that the resistance of the pressure-sensitive conductor of the sub-contact is changed by pressing a key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56198390A JPS58100190A (en) | 1981-12-11 | 1981-12-11 | Keyboard unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56198390A JPS58100190A (en) | 1981-12-11 | 1981-12-11 | Keyboard unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58100190A JPS58100190A (en) | 1983-06-14 |
| JPH041913B2 true JPH041913B2 (en) | 1992-01-14 |
Family
ID=16390326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56198390A Granted JPS58100190A (en) | 1981-12-11 | 1981-12-11 | Keyboard unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58100190A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0620162A (en) * | 1992-06-29 | 1994-01-28 | Bridgestone Cycle Co | Alarm for bicycle |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5248770U (en) * | 1975-10-03 | 1977-04-07 | ||
| JPS5741833Y2 (en) * | 1976-04-26 | 1982-09-13 | ||
| JPS5731331Y2 (en) * | 1976-01-30 | 1982-07-09 | ||
| JPS5754130Y2 (en) * | 1977-04-26 | 1982-11-24 | ||
| JPS5472522U (en) * | 1977-11-01 | 1979-05-23 |
-
1981
- 1981-12-11 JP JP56198390A patent/JPS58100190A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58100190A (en) | 1983-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR900006581B1 (en) | Touch control device of electronic keyboard instrument | |
| JPS59135536A (en) | Key input device | |
| JPH041913B2 (en) | ||
| US5743386A (en) | Membrane switch assembly | |
| US3564105A (en) | Electronic musical instrument key assembly with pressure sensitive resistor | |
| JPS5812230Y2 (en) | Keyboard device for electronic musical instruments | |
| JP2906437B2 (en) | Keyboard for electronic musical instruments | |
| JP4441008B2 (en) | Keyboard device | |
| JPH0341386Y2 (en) | ||
| US4500756A (en) | Keyboard switch having a deformable membrane formed of cellular urethane | |
| JPS6343510Y2 (en) | ||
| JPH0448600Y2 (en) | ||
| JPH0432400B2 (en) | ||
| JPH10161785A (en) | Membrane keyboard | |
| JPS59171419A (en) | tablet input device | |
| JPS5915377Y2 (en) | push button switch | |
| JPH0447751Y2 (en) | ||
| JP4212544B2 (en) | Electronic musical instrument bender equipment | |
| JPS5812233Y2 (en) | Keyboard device for electronic musical instruments | |
| CN2279690Y (en) | membrane switch | |
| JPH0424578Y2 (en) | ||
| JPS599696A (en) | Keyboard for electronic musical instrument | |
| JP4106850B2 (en) | Wiring structure | |
| JPS6127026A (en) | Keyboard switch | |
| JPH0631966B2 (en) | Touch response keyboard |