JPH0643837Y2 - Electronic musical instrument key device - Google Patents
Electronic musical instrument key deviceInfo
- Publication number
- JPH0643837Y2 JPH0643837Y2 JP1985006308U JP630885U JPH0643837Y2 JP H0643837 Y2 JPH0643837 Y2 JP H0643837Y2 JP 1985006308 U JP1985006308 U JP 1985006308U JP 630885 U JP630885 U JP 630885U JP H0643837 Y2 JPH0643837 Y2 JP H0643837Y2
- Authority
- JP
- Japan
- Prior art keywords
- key
- musical instrument
- electronic musical
- pressing force
- bowl
- 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
【考案の詳細な説明】 （産業上の利用分野） 本考案は、電子楽器の鍵装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a key device for an electronic musical instrument.
（従来の技術） 従来、電子楽器に例えば電子ピアノにおいて、鍵ａは、
第１図示のようにフレームｂの支点ｃに揺動自在に支持
され、基端に引張りばねｄが張設されているのが一般で
ある。(Prior Art) Conventionally, in an electronic musical instrument such as an electronic piano, the key a is
As shown in the first illustration, it is generally supported swingably on a fulcrum c of a frame b, and a tension spring d is stretched at the base end.
（考案が解決しようとする問題点） 上記した従来のものは、鍵ａの押圧力とストロークとの
関係が第２図に示すような関係にあり、鍵ａの押し始め
より徐々に押圧力が強くなる単調なタッチ感しか得るこ
とができなかった。(Problems to be Solved by the Invention) In the above-mentioned conventional one, the pressing force of the key a and the stroke have a relationship as shown in FIG. 2, and the pressing force gradually increases from the start of pressing the key a. I could only get a monotonous feeling of strength.
本考案は、この点を改良すべくなされたもので、ピアノ
の鍵タッチに近似したタッチの鍵装置を提供することを
その目的としたものである。The present invention has been made to improve this point, and an object thereof is to provide a key device having a touch similar to that of a piano key touch.
（問題点を解決するための手段） 本考案は、キースイッチを固着してなるフレームの支点
に揺動自在に支持され、基端に引張りばねが張設された
鍵と、該鍵に設けたアクチュエータにより、前記キース
イッチを開閉するようにした電子楽器の鍵装置におい
て、所定距離押下げられた鍵が更に下動した時点で該鍵
によって高台部が押圧され、押圧力が所定の大きさに増
大した時、該高台部の周辺が急激に凹み、押圧力が減少
する弾性材から成る椀状部材を、鍵の中心より前方のフ
レーム上に配置したことを特徴とする。(Means for Solving Problems) The present invention is provided with a key which is swingably supported by a fulcrum of a frame to which a key switch is fixed and which has a tension spring stretched at a base end thereof, and the key. In a key device of an electronic musical instrument in which the key switch is opened and closed by an actuator, when a key pressed down for a predetermined distance further moves down, the plateau is pressed by the key, and the pressing force reaches a predetermined magnitude. It is characterized in that a bowl-shaped member made of an elastic material, in which the periphery of the plateau is suddenly depressed when the number increases and the pressing force is reduced, is arranged on the frame in front of the center of the key.
（実施例） 本考案の実施例を図面につき説明する。(Embodiment) An embodiment of the present invention will be described with reference to the drawings.
第３図において、（１）はフレーム（２）に設けた支点
板（３）に揺動自在に支持され基端に引張りばね（４）
が張設された鍵、（５）はアクチュエータ（９）の前方
すなわち鍵（１）の中心より前方のフレーム（２）上に
伏せて配置された椀状部材、（６）は鍵ストッパ、
（７）は鍵ガイド、（８）は鍵（１）の中心付近に設け
たアクチュエータ（９）の下動により作動するキースイ
ッチである。In FIG. 3, (1) is swingably supported by a fulcrum plate (3) provided on a frame (2), and a tension spring (4) is provided at a base end.
Is a tensioned key, (5) is a bowl-shaped member which is arranged so as to lie down on the frame (2) in front of the actuator (9), that is, in front of the center of the key (1), and (6) is a key stopper,
Reference numeral (7) is a key guide, and reference numeral (8) is a key switch which is operated by downward movement of an actuator (9) provided near the center of the key (1).
椀状部材（５）はゴム等の弾性材で第４図示のような形
状に形成されており、鍵（１）をストロークの約2/3す
なわち距離l1だけ押下げた時該鍵（１）と接触するよう
な大きさであり、鍵（１）の高台部（1a）によって高台
部（5a）が押され、押圧力が増大し所定の大きさになっ
た時高台部（5a）周辺が急激に凹み、押圧力が減少する
ようになっている。The bowl-shaped member (5) is made of an elastic material such as rubber in a shape as shown in FIG. 4, and when the key (1) is pushed down by about 2/3 of the stroke, that is, the distance l 1 , the key (1) ) When the key (1) is pressed by the plateau (1a) and the plateau (5a) is pressed to increase the pressing force to a predetermined size, the area around the plateau (5a) Is suddenly dented, and the pressing force decreases.
次にその作動について説明する。Next, the operation will be described.
鍵（１）を押下げると、支点を中心に回動するが、第５
図示のように距離l1すなわち鍵（１）のストロークの約
2/3押下げるまでは引張ばね（４）の力だけを指に感
じ、第６図示のように押圧力とストロークとの関係は従
来のものと同じである。この鍵（１）の押下げ状態で鍵
（１）のアクチュエータ（1a）は椀状部材（５）の高台
部（5a）と接触するから、これから更に鍵（１）を第７
図示のようにストロークの残り1/3すなわち距離l2押下
げると椀状部材（５）は第８図に示すように、椀状部
（5b）が外側に膨れると共にその高台部（5a）周辺が急
激に凹み、押圧力が減少する。この間鍵（１）の押圧力
は引張りばね（４）の力に椀状部材（５）の力が加わっ
たものとなる。すなわち鍵（１）の押圧力は第６図示の
ように押圧開始時より約1.5倍となり、次いで減少す
る。これは指に伝わるクリック感であり、ピアノの押鍵
時においてアクションのジャックがバット又はハンマー
シャンクローラを押し上げて外れた時のタッチと同じで
ある。更に押鍵すればフレーム（２）上に設けられた鍵
ストッパ（６）に鍵（１）の下面が当接してその回動は
終了する。When the key (1) is pressed down, it rotates around the fulcrum, but
As shown, the distance l 1 is about the stroke of the key (1).
Only the force of the tension spring (4) is felt by the finger until it is pressed down by 2/3, and the relationship between the pressing force and the stroke is the same as the conventional one as shown in FIG. When the key (1) is pushed down, the actuator (1a) of the key (1) comes into contact with the elevated portion (5a) of the bowl-shaped member (5).
As shown in FIG. 8, when the remaining 1/3 of the stroke, that is, the distance l 2 is pushed down, the bowl-shaped member (5) bulges outward as shown in FIG. Suddenly dents and the pressing force decreases. During this time, the pressing force of the key (1) is the force of the tension spring (4) plus the force of the bowl-shaped member (5). That is, the pressing force of the key (1) is about 1.5 times as large as that at the start of pressing as shown in FIG. 6, and then decreases. This is the click feeling transmitted to the finger, and is the same as the touch when the action jack pushes up the bat or hammer shank roller to release it when the piano key is pressed. When the key is further pressed, the lower surface of the key (1) comes into contact with the key stopper (6) provided on the frame (2), and the rotation is completed.
鍵（１）の押圧を止めると鍵（１）は引張りばね（４）
の力により元の位置に復帰する。When the pressing of the key (1) is stopped, the key (1) is a tension spring (4).
Return to the original position by the force of.
（考案の効果） 本考案は、弾性材から成る椀状部材をフレーム上に伏せ
て配置し、該椀状部材を所定距離押下げられた後の鍵で
押圧して変形するようにしたので、ピアノの鍵タッチを
簡単な構造で得られる効果を有する。(Effect of the Invention) According to the present invention, the bowl-shaped member made of an elastic material is arranged on the frame so that the bowl-shaped member is laid face down, and the bowl-shaped member is deformed by being pressed by the key after being pressed down for a predetermined distance. It has the effect that a piano key touch can be obtained with a simple structure.
第１図は従来例の側面図、第２図はその鍵ストロークと
鍵押圧力との関係を示す図、第３図は本考案の一実施例
の側面図、第４図（Ａ）及び（Ｂ）は椀状部材の斜視図
及び断面図、第５図は鍵（１）をl1だけ押下げた状態を
示す図、第６図は本考案の鍵ストロークと鍵押圧力との
関係を示す図、第７図は鍵（１）を更にl2だけ押下げた
状態を示す図、第８図（Ａ）及び（Ｂ）は押しつぶされ
た状態の椀状部材の斜視図及び断面図である。 （１）…鍵、（２）…フレーム （３）…支点板、（４）…引張りばね （５）…椀状部材、（６）…鍵ストッパ （７）…鍵ガイド、（８）…キースイッチ （９）…アクチュエータFIG. 1 is a side view of a conventional example, FIG. 2 is a view showing a relationship between a key stroke and a key pressing force, FIG. 3 is a side view of an embodiment of the present invention, FIGS. 4 (A) and (A). B) is a perspective view and a sectional view of the bowl-shaped member, FIG. 5 is a view showing a state in which the key (1) is pressed down by l 1, and FIG. 6 shows the relationship between the key stroke and the key pressing force of the present invention. Fig. 7 is a diagram showing a state in which the key (1) is further pushed down by l 2, and Figs. 8 (A) and 8 (B) are perspective and sectional views of the bowl-shaped member in a crushed state. is there. (1) ... key, (2) ... frame (3) ... fulcrum plate, (4) ... tension spring (5) ... bowl-shaped member, (6) ... key stopper (7) ... key guide, (8) ... key Switch (9) ... Actuator
Claims (1)
点に揺動自在に支持され、基端に引張りばねが張設され
た鍵と、該鍵に設けたアクチュエータにより、前記キー
スイッチを開閉するようにした電子楽器の鍵装置におい
て、所定距離押下げられた鍵が更に下動した時点で該鍵
によって高台部が押圧され、押圧力が所定の大きさに増
大した時、該高台部の周辺が急激に凹み、押圧力が減少
する弾性材から成る椀状部材を、鍵の中心より前方のフ
レーム上に配置したことを特徴とする電子楽器の鍵装
置。1. A key which is swingably supported by a fulcrum of a frame to which a key switch is fixed and which has a tension spring stretched at its base end, and an actuator provided on the key to open and close the key switch. In the electronic musical instrument key device configured as above, when the key depressed by a predetermined distance further moves downward, the key presses the plateau, and when the pressing force increases to a predetermined magnitude, the periphery of the plateau A key device for an electronic musical instrument, characterized in that a bowl-shaped member made of an elastic material that is sharply depressed and whose pressing force is reduced is arranged on a frame in front of the center of the key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985006308U JPH0643837Y2 (en) | 1985-01-22 | 1985-01-22 | Electronic musical instrument key device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985006308U JPH0643837Y2 (en) | 1985-01-22 | 1985-01-22 | Electronic musical instrument key device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61124097U JPS61124097U (en) | 1986-08-05 |
| JPH0643837Y2 true JPH0643837Y2 (en) | 1994-11-14 |
Family
ID=30483633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985006308U Expired - Lifetime JPH0643837Y2 (en) | 1985-01-22 | 1985-01-22 | Electronic musical instrument key device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0643837Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6142755B2 (en) * | 2013-09-27 | 2017-06-07 | ヤマハ株式会社 | Dome-type reaction force generation unit |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS517373Y2 (en) * | 1971-07-09 | 1976-02-28 | ||
| US3797866A (en) * | 1972-06-07 | 1974-03-19 | Honeywell Inc | Fastening device for fastening a member through a hole in a wall from the inside surface of the wall |
| JPS55129702A (en) * | 1979-03-29 | 1980-10-07 | Ryuzo Yamashita | Measuring unit for car frame corrector for automobile |
| JPS55175185U (en) * | 1979-06-01 | 1980-12-16 | ||
| US4476088A (en) * | 1979-10-30 | 1984-10-09 | Nuclear Power Company Limited | Latching devices and nuclear reactors incorporating such latching devices |
-
1985
- 1985-01-22 JP JP1985006308U patent/JPH0643837Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61124097U (en) | 1986-08-05 |
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