JPH0544876Y2 - - Google Patents
Info
- Publication number
- JPH0544876Y2 JPH0544876Y2 JP1950886U JP1950886U JPH0544876Y2 JP H0544876 Y2 JPH0544876 Y2 JP H0544876Y2 JP 1950886 U JP1950886 U JP 1950886U JP 1950886 U JP1950886 U JP 1950886U JP H0544876 Y2 JPH0544876 Y2 JP H0544876Y2
- Authority
- JP
- Japan
- Prior art keywords
- key
- electrodes
- white
- keys
- electrode
- 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
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000000994 depressogenic effect Effects 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 229920006267 polyester film Polymers 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は白鍵のタツチ出力と黒鍵のタツチ出
力とを各別に取り出し得るようにした電子鍵盤楽
器の鍵タツチセンサに関する。[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a key touch sensor for an electronic keyboard instrument that is capable of separately extracting white key touch output and black key touch output.
従来から電子鍵盤楽器においては、押鍵操作に
よつて生じた発生楽音にトレモロ効果、ビブラー
ト効果、トレモロスピード制御等の所謂アフター
コントロールを加えて微妙に変化する種々の特殊
音響効果を得るようにしている。このようなタツ
チコントロール装置としては、一般に操作パネル
面に配設したトレモロスイツチ等の各種制御用ス
イツチを手動操作して所望の演奏効果を得るよう
にしたり、押鍵時の鍵を利用して同様の効果を得
るようにしている。このうち特に鍵を利用したタ
ツチコントロール装置としては、実開昭50−
121726号公報に開示された電子楽器用押鍵圧検出
装置が知られている。これは第11図に示すよう
に上下に対向する電極基板1および弾性導電体2
と、これら両者間にその長辺側両縁部に沿つてそ
れぞれ介在された一対の弾性絶縁体3a,3b
と、前記弾性導電体2に導電的に固着された可撓
性電極4とで構成され、鍵(図示せず)の押鍵操
作時に前記弾性導電体2を下方に撓ませて電極基
板1との接触面積および接触圧力を押圧力に応じ
て変化させ、これに応じて電極基板1と可撓性電
極4間の抵抗値を変え、アフターコントロールを
付加させるようにしたものである。
Conventionally, in electronic keyboard instruments, so-called after-controls such as tremolo effects, vibrato effects, and tremolo speed control are added to the musical sounds generated by key presses to obtain various special sound effects that subtly change. There is. Such touch control devices are generally used to manually operate various control switches such as tremolo switches placed on the operation panel surface to obtain the desired performance effect, or to obtain the desired performance effect by using the keys when the keys are pressed. I'm trying to get the same effect. Among these, a touch control device using a key was developed in the 1970s.
2. Description of the Related Art A key press pressure detection device for an electronic musical instrument disclosed in Japanese Patent No. 121726 is known. As shown in FIG. 11, this consists of an electrode substrate 1 and an elastic conductor 2 facing vertically.
and a pair of elastic insulators 3a, 3b interposed between the two along both long side edges.
and a flexible electrode 4 that is electrically conductively fixed to the elastic conductor 2, and when a key (not shown) is pressed, the elastic conductor 2 is bent downward to connect to the electrode substrate 1. The contact area and the contact pressure are changed according to the pressing force, and the resistance value between the electrode substrate 1 and the flexible electrode 4 is changed accordingly, and after control is added.
また、第12図および第13図に示すようにす
べての鍵11に対して共通に延在し幅方向に折畳
まれた絶縁性シート22と、このシート22の間
に各鍵11に対してもしくは複数個の鍵に対応し
て配設された感圧導電性弾性体23と、絶縁性シ
ート22の内側面に前記感圧導電性弾性体23を
挟んで上下に対向する如く形成された第1および
第2導電性被膜24,25と、前記絶縁性シート
22の幅方向両端部を固着する固着部26とを備
え、押鍵操作時に鍵11が絶縁性シート22を介
して感圧導電性弾性体23を押圧することによ
り、第1および第2導電性被膜24,25間の抵
抗値を押圧力に変じて変化させるようにしたタツ
チコントロール装置(実開昭60−125695号公報)
が知られている。なお、図中25a〜25nは各鍵1
1に対応して形成された被膜片、27は緩衝部
材、31はコネクタ、32a〜32nはリードで
ある。 In addition, as shown in FIGS. 12 and 13, an insulating sheet 22 that extends in common to all keys 11 and is folded in the width direction, and between this sheet 22, each key 11 is Alternatively, the pressure-sensitive conductive elastic bodies 23 are arranged corresponding to a plurality of keys, and the pressure-sensitive conductive elastic bodies 23 are formed on the inner surface of the insulating sheet 22 so as to face each other vertically with the pressure-sensitive conductive elastic bodies 23 interposed therebetween. 1 and 2 conductive coatings 24 and 25, and a fixing part 26 that fixes both ends of the insulating sheet 22 in the width direction. A touch control device that changes the resistance value between the first and second conductive coatings 24 and 25 by converting it into a pressing force by pressing the elastic body 23 (Japanese Utility Model Publication No. 125695/1983)
It has been known. In addition, 25a to 25n in the figure are each key 1
1, 27 is a buffer member, 31 is a connector, and 32a to 32n are leads.
しかるに前者の押鍵圧検出装置においては、製
造、組立性等に問題があつた。すなわち、一対の
弾性絶縁体3a,3bを必要とするため、部品点
数が増加し、製造および取付け作業が面倒である
うえ、弾性絶縁体3a,3bを厳密に並行に取付
けないと、同じ押圧力でも弾性導電体2の撓み量
が長手方向で異なるため、抵抗値が変化し、品質
にバラツキが生じ易いものである。さらに、白、
黒鍵に対して同一のセンサを構成しているため、
白鍵と黒鍵のタツチ出力を各別に取り出すことが
できず、タツチ特性に問題があつた。
However, the former key press pressure detection device had problems in manufacturing, assembly, etc. That is, since a pair of elastic insulators 3a and 3b are required, the number of parts increases, manufacturing and installation work is troublesome, and the same pressing force is required unless the elastic insulators 3a and 3b are attached strictly in parallel. However, since the amount of deflection of the elastic conductor 2 differs in the longitudinal direction, the resistance value changes and the quality tends to vary. In addition, white
Since the same sensor is configured for the black key,
It was not possible to extract touch outputs for white keys and black keys separately, which caused problems with touch characteristics.
すなわち、白鍵と黒鍵とではその長さ、質量、
形状、鍵と演奏者との位置関係等が異なるため、
演奏者が同じ強さで操作したとしても実際は異な
つた速度で鍵が押下されるため、結果としてセン
サが受ける圧力が異なり、異なつたタツチ特性に
なつてしまうからである。しかも、その差異は押
鍵力が大きいほど顕著である。また、特に手で操
作される鍵に比べて足で踏込操作されるペダル鍵
盤は長くて質量が大であるため、タツチ特性に著
しく異なつてしまう。 In other words, the length, mass, and
Due to differences in shape, positional relationship between keys and performers, etc.
This is because even if the performer operates with the same force, the keys are actually depressed at different speeds, resulting in different pressures being received by the sensor, resulting in different touch characteristics. Moreover, the difference becomes more pronounced as the key press force increases. Furthermore, compared to keys operated by hand, pedal keyboards operated by foot are longer and heavier, resulting in significantly different touch characteristics.
これに対して、後者のタツチコントロール装置
は構造が極めて簡単で高精度な位置決めを要求さ
れず、製造および組立作業が容易で、安価に提供
し得るという利点を有している。しかし、この装
置においては各鍵のタツチ出力を個々に取出して
いるので、被膜片25a〜25nの数だけリード
32a〜32nを形成する必要があり、絶縁シー
ト22が大型化するという不都合があつた。 On the other hand, the latter touch control device has the advantage that it has an extremely simple structure, does not require highly accurate positioning, is easy to manufacture and assemble, and can be provided at low cost. However, in this device, since the touch output of each key is taken out individually, it is necessary to form as many leads 32a to 32n as there are coating pieces 25a to 25n, which has the disadvantage of increasing the size of the insulating sheet 22. Ta.
この考案に係る電子鍵盤楽器の鍵タツチセンサ
は上述したような問題を解決すべくなされたもの
で、複数の鍵に対して共通に延在する帯状の第1
および第2電極部材と、これら両電極部材間に介
在された感圧導電性弾性体とを備え、前記第1お
よび第2電極部材のうち少なくともいずれか一方
に、各白鍵にそれぞれ対応し直列接続された複数
の白鍵用電極と、各黒鍵にそれぞれ対応して直列
接続され、かつ前記白鍵用電極とは電気的に絶縁
された複数の黒鍵用電極とを形成したものであ
る。
The key touch sensor for an electronic keyboard instrument according to this invention was made to solve the above-mentioned problems, and it uses a first strip-shaped sensor that extends commonly to a plurality of keys.
and a second electrode member, and a pressure-sensitive conductive elastic body interposed between these electrode members, the pressure-sensitive conductive elastic body being connected in series to at least one of the first and second electrode members, respectively corresponding to each white key. A plurality of connected white key electrodes are formed, and a plurality of black key electrodes are connected in series corresponding to each black key and are electrically insulated from the white key electrodes. .
〔作用〕
この考案においては白鍵のタツチ出力と黒鍵の
タツチ出力とを各別に取り出すことができ、しか
も各白鍵用電極と黒鍵用電極はそれぞれ直列接続
されているので、リード数が少なく回路構成が簡
単である。[Function] In this invention, the white key touch output and the black key touch output can be extracted separately, and since each white key electrode and black key electrode are connected in series, the number of leads can be reduced. The circuit configuration is simple.
以下、この考案を図面に示す実施例に基づいて
詳細に説明する。
This invention will be described in detail below based on embodiments shown in the drawings.
第1図はこの考案をペダル鍵盤に適用した場合
の一実施例を示す斜視図、第2図は断面図であ
る。これらの図において、40は楽器本体の前
板、41の底板で、これら両板40,41の下端
と前端とをフレーム42で連結しており、フレー
ム42の下面には白鍵と黒鍵とからなる複数個の
ペダル鍵盤44が、その後端(楽器側端)を上下
方向に回動自在に保持されて配設されている。 FIG. 1 is a perspective view showing an embodiment of this invention applied to a pedal keyboard, and FIG. 2 is a sectional view. In these figures, 40 is the front plate of the instrument body, 41 is the bottom plate, and the lower and front ends of these plates 40, 41 are connected by a frame 42, and the lower surface of the frame 42 has white keys and black keys. A plurality of pedal keyboards 44 are disposed with their rear ends (ends on the side of the musical instrument) being held rotatably in the vertical direction.
各ペダル鍵盤44は金属、プラスチツク等によ
つて一体に形成されることにより、前述した通り
後端部がフレーム42の下面に支承軸45によつ
て上下方向に回動自在に保持され、かつばね46
によつて第2図時計方向の復帰習性が付与されて
いる。 Each pedal keyboard 44 is integrally formed of metal, plastic, etc., so that the rear end thereof is held on the lower surface of the frame 42 by the support shaft 45 so as to be rotatable in the vertical direction as described above, and is supported by a spring. 46
The clockwise return behavior shown in FIG. 2 is given by .
前記ばね46は圧縮コイルばねからなり、ペダ
ル鍵盤44の後端部上面に設けられたばね収納凹
部47内に下端部が収納されている。ペダル鍵盤
44の後端部上面で前記ばね収納凹部47の後方
にはアクチユエータ48が一体に突設されてお
り、このアクチユエータ48に対応して前記フレ
ーム42に透孔49が形成されると共にスイツチ
50がフレーム上面側に配設されている。前記ス
イツチ50はペダル鍵盤44の踏込操作時に前記
アクチユエータ48によつて動作され、その出力
信号が楽音形成回路に送出され、これによつて押
鍵操作されたペダル鍵盤を検出するように構成さ
れている。また、前記フレーム42の下面で前記
透孔49の後方にはこの考案の要旨をなす鍵タツ
チセンサ55が配設され、さらにその後方には前
記ペダル鍵盤44の後端を支持する鉤形の下限ス
トツパ56が一体に設けられている。 The spring 46 is made of a compression coil spring, and its lower end is housed in a spring housing recess 47 provided on the upper surface of the rear end of the pedal keyboard 44. An actuator 48 is integrally protruded from behind the spring storage recess 47 on the upper surface of the rear end of the pedal keyboard 44 , and a through hole 49 is formed in the frame 42 in correspondence with the actuator 48 . is placed on the top side of the frame. The switch 50 is operated by the actuator 48 when the pedal keyboard 44 is depressed, and its output signal is sent to a musical tone forming circuit, thereby detecting the depressed pedal keyboard. There is. Further, on the lower surface of the frame 42, behind the through hole 49, a key touch sensor 55, which is the gist of the invention, is disposed, and further behind it is a hook-shaped lower limit stop that supports the rear end of the pedal keyboard 44. 56 are integrally provided.
さて、前記鍵タツチセンサ55は第3図に示す
ようにすべてのペダル鍵盤44に対して共通に延
在するケース57と、このケース57の凹部58
内に配設される帯状の第1および第2電極部材5
9,60と、これら両電極部材59,60間に介
在された導電ゴム等の感圧導電性弾性体61と、
前記凹部58を被うクツシヨン部材62等で構成
され、ケース57がフレーム42の下面に固着さ
れ、クツシヨン部材62がペダル鍵盤44の踏込
操作に伴つて当該鍵盤の後端部上面により押圧さ
れるように構成されている。なお、クツシヨン部
材62はケース57に両面接着テープ等によつて
固着されている。 Now, as shown in FIG. 3, the key touch sensor 55 includes a case 57 that extends commonly to all the pedal keyboards 44, and a recess 58 of this case 57.
Band-shaped first and second electrode members 5 disposed within the
9, 60, and a pressure-sensitive conductive elastic body 61 such as conductive rubber interposed between these electrode members 59, 60;
The case 57 is fixed to the lower surface of the frame 42, and the cushion member 62 is pressed by the upper surface of the rear end of the pedal keyboard 44 when the pedal keyboard 44 is depressed. It is composed of Note that the cushion member 62 is fixed to the case 57 with double-sided adhesive tape or the like.
前記第1電極部材59は薄いポリエステルフイ
ルム等によつて第4図〜第9図に示すように帯状
に形成されることにより複数のペダル鍵盤44に
対して共通に延在する長さを有し、その一方の
面、すなわち前記感圧導電性弾性体61と接する
面に、それぞれ略凸形をした複数個の第1の電極
65(65a〜65n)がAgペーストによつて
所定の間隔をおいて印刷形成され、その上をポリ
エステルフイルム等の絶縁シート66で被覆し、
さらにその上に複数個の第2の電極67が、そし
てこの第2の電極67の上にカーボンの被覆層6
8が形成されている。前記各電極65a〜65n
は各ペダル鍵盤44にそれぞれ対応して形成され
ることにより、各白鍵に対応する第1の白鍵用電
極65a,65c,65e…と、各黒鍵に対応す
る第1の黒鍵用電極65b,65d…とからな
り、第1の白鍵用電極65a,65c,65e…
は前記第2の電極67のうちの白鍵用電極67
a,67c,67e…によつて直列に接続され、
また第1の黒鍵用電極65b,65dも同様に前
記第2の電極67のうちの黒鍵用電極67b,6
7d,67f…によつて直列接続され、かつ前記
白鍵用電極65a,65c,65e…とは電気的
に絶縁されている。 The first electrode member 59 is formed of a thin polyester film or the like into a band shape as shown in FIGS. 4 to 9, and has a length that extends commonly to the plurality of pedal keyboards 44. , a plurality of first electrodes 65 (65a to 65n) each having a substantially convex shape are spaced at predetermined intervals by Ag paste on one surface thereof, that is, the surface in contact with the pressure-sensitive conductive elastic body 61. is printed and formed, and covered with an insulating sheet 66 such as a polyester film,
Furthermore, a plurality of second electrodes 67 are provided on the second electrodes 67, and a carbon coating layer 6 is provided on the second electrodes 67.
8 is formed. Each of the electrodes 65a to 65n
are formed corresponding to each pedal keyboard 44, so that first white key electrodes 65a, 65c, 65e, etc. correspond to each white key, and first black key electrodes correspond to each black key. 65b, 65d..., first white key electrodes 65a, 65c, 65e...
is the white key electrode 67 of the second electrodes 67
connected in series by a, 67c, 67e...
Similarly, the first black key electrodes 65b, 65d are the same as the black key electrodes 67b, 6 of the second electrodes 67.
7d, 67f..., and are electrically insulated from the white key electrodes 65a, 65c, 65e....
前記各電極65a〜65nは互いに隣り合うも
の同士の向きが逆になるように形成され、かつ隣
接するもの同士は前記絶縁シート66の膨出部6
6aによつて仕切られ電気的に絶縁されている。
前記各電極65a〜65nの両端部A(第8図斜
線部)は、接続端部を構成するもので、この接続
端部Aに対応して前記絶縁シート66に小孔70
がそれぞれ形成されており、これらの小孔70に
前記第2電極67が充填されている。そして、絶
縁シート66の両端には第7図に示すように白、
黒鍵用のリード端子72a,72bがカーボンに
よつて形成されており、前記第2電極67a,6
7bとそれぞれ接続されている。 The respective electrodes 65a to 65n are formed so that the directions of adjacent electrodes are opposite to each other, and the adjacent electrodes are formed in the bulged portion 6 of the insulating sheet 66.
6a and is electrically insulated.
Both ends A (shaded areas in FIG. 8) of each of the electrodes 65a to 65n constitute connection ends, and small holes 70 are formed in the insulating sheet 66 corresponding to the connection ends A.
are formed respectively, and these small holes 70 are filled with the second electrode 67. As shown in FIG. 7, both ends of the insulating sheet 66 are white.
Lead terminals 72a and 72b for black keys are made of carbon, and the second electrodes 67a and 6
7b, respectively.
なお、白鍵と黒鍵とは交互に規則正しく並んで
おらず、例えばE,F音に対応する白鍵および
B,C音に対応する白鍵は互いに隣接して設けら
れているが、これらに対応する電極は連続して形
成され、これによつて白鍵用と黒鍵用の電極65
a〜65nが交互に配列されている。 Note that the white keys and black keys are not arranged regularly alternately; for example, the white keys corresponding to E and F notes and the white keys corresponding to B and C notes are provided adjacent to each other, but these Corresponding electrodes are formed in succession, thereby forming electrodes 65 for white keys and for black keys.
A to 65n are arranged alternately.
前記第2電極部材60は前述した第1電極部材
59と全く同一に形成されているため、その図示
および説明を省略する。 Since the second electrode member 60 is formed exactly the same as the first electrode member 59 described above, illustration and description thereof will be omitted.
このような構成からなる鍵タツチセンサ55に
おいて、ある一つのペダル鍵盤44を踏込操作す
ると、当該鍵盤44の後端部が上昇してクツシヨ
ン部材62を押圧するため、該クツシヨン部材6
2はその押圧された部分が押圧力に応じて凹み、
感圧導電性弾性体61と第1および第2電極部材
59,60との接触圧力を変化させる。この結
果、前記弾性体61の厚み方向の電気抵抗値が変
化し、この変化を前記第1および第2電極部材5
9,60から取り出し、その出力を楽音形成回路
に加えることにより、発生楽音の音量や音色を変
化させてアフターコントロールが加えられる。 In the key touch sensor 55 having such a configuration, when one pedal keyboard 44 is depressed, the rear end of the keyboard 44 rises and presses the cushion member 62.
2, the pressed part dents according to the pressing force,
The contact pressure between the pressure sensitive conductive elastic body 61 and the first and second electrode members 59, 60 is changed. As a result, the electrical resistance value in the thickness direction of the elastic body 61 changes, and this change is reflected in the first and second electrode members 5.
By taking out the output from 9, 60 and adding its output to a musical tone forming circuit, after control can be applied by changing the volume and tone of the generated musical tone.
ここで、本実施例においては第1の電極65a
〜65nを白鍵用と黒鍵用の電極に分け、第1の
白鍵用電極を直列接続し、また第1の黒鍵用電極
を同様に直列に接続し、かつ白鍵用と黒鍵用の電
極を互いに電気的に絶縁しているので、白、黒鍵
のタツチ信号(出力)を各別に取り出すことがで
きる。 Here, in this embodiment, the first electrode 65a
~65n is divided into white key and black key electrodes, the first white key electrode is connected in series, the first black key electrode is similarly connected in series, and the white key and black key electrodes are connected in series. Since the electrodes are electrically insulated from each other, touch signals (outputs) for white and black keys can be extracted separately.
また、前述した実開昭60−125695号公報のタツ
チコントロール装置と異なり各鍵毎に信号を取り
出すものではないため、リート数が僅かに合計4
本(両端部2本ずつ)で済み、回路構成が簡単で
幅狭のセンサを製作し得る。 In addition, unlike the touch control device disclosed in Japanese Utility Model Application Publication No. 60-125695 mentioned above, the signal is not extracted for each key, so the total number of REETs is only 4.
It is possible to manufacture a sensor with a simple circuit configuration and a narrow width because it only requires a book (two on each end).
第10図はペダル鍵盤の電気回路を示すブロツ
ク図で、80は楽音形成回路、81はタツチ制御
回路、82はサウンドシステムを示す。タツチ制
御回路81には鍵タツチセンサ55からの白鍵タ
ツチ出力と黒鍵タツチ出力が送られ、これらの出
力を増幅して楽音形成回路80に送出する。この
時、白鍵タツチ出力は小さく、黒鍵タツチ出力は
大きく増幅する。これは前述した通り白鍵と黒鍵
とでは長さ、形状、質量等が異なり、同一の押下
速度のつもりで押下げたとしても実際は黒鍵の方
が白鍵よりも遅い速度で押下され、タツチ出力に
差が生じるため、この差に相応して増幅率を白鍵
と黒鍵とで変えることにより同一のタツチ出力を
得るようにするためである。 FIG. 10 is a block diagram showing the electric circuit of the pedal keyboard, with reference numeral 80 indicating a musical tone forming circuit, 81 indicating a touch control circuit, and 82 indicating a sound system. The white key touch output and the black key touch output from the key touch sensor 55 are sent to the touch control circuit 81, which amplifies these outputs and sends them to the tone forming circuit 80. At this time, the white key touch output is small, and the black key touch output is amplified greatly. This is because, as mentioned above, the length, shape, mass, etc. of white keys and black keys are different, and even if you intend to press the keys at the same speed, the black keys will actually be pressed at a slower speed than the white keys. This is because there is a difference in touch output, so by changing the amplification factor between the white key and the black key in proportion to this difference, the same touch output can be obtained.
なお、上記実施例は第1および第2電極部材5
9,60を全く同一に製作した場合について説明
したが、これに何ら特定されるものではなく、い
ずれか一方には一本の帯状電極を全長に亘つて形
成し、これを共通電極として使用することも可能
である。 Note that in the above embodiment, the first and second electrode members 5
9 and 60 are manufactured in exactly the same manner, but there is no particular limitation to this; instead, one strip-shaped electrode is formed over the entire length of one of them, and this is used as a common electrode. It is also possible.
また、上記実施例はペダル鍵盤44に適用実施
したが、手によつて押鍵操作される手鍵盤にもそ
のまま適用し得るものである。 Further, although the above embodiment has been applied to the pedal keyboard 44, it can also be applied to a manual keyboard in which the keys are pressed by hand.
以上説明したようにこの考案に係る電子鍵盤楽
器の鍵タツチセンサによれば、構造が簡単で、白
鍵と黒鍵のタツチ出力を各別に検出することがで
き、特に白、黒鍵のタツチ特性をそろえたい場
合、その後の電気的な信号処理が容易で好適であ
る。
As explained above, the key touch sensor for an electronic keyboard instrument according to this invention has a simple structure and can detect the touch outputs of white keys and black keys separately, and in particular, the touch characteristics of white and black keys can be detected separately. If it is desired to align them, subsequent electrical signal processing is easy and suitable.
第1図はこの考案をペダル鍵盤に適用した場合
の斜視図、第2図は同鍵盤の断面図、第3図は鍵
タツチセンサの要部の分解斜視図、第4図〜第9
図は第1電極部材を示し、第4図はその平面図、
第5図は底面図、第6図は導電部のパターンを示
す図、第7図はカーボン被覆層を示す図、第8図
は接続端部を示す図、第9図は第8図−
線断面図、第10図はペダル鍵盤の電気回路を示
すブロツク図、第11図は押鍵圧検出装置の従来
例を示す斜視図、第12図はタツチコントロール
装置の従来例を示す断面図、第13図は絶縁性シ
ートの展開図である。
44……ペダル鍵盤、55……鍵タツチセン
サ、59……第1電極部材、60……第2電極部
材、61……感圧導電性弾性体、65……第1の
電極、65a,65c,65e……白鍵用電極、
65b,65d……黒鍵用電極、67……第2の
電極、68……カーボン被覆層。
Figure 1 is a perspective view of this invention applied to a pedal keyboard, Figure 2 is a sectional view of the keyboard, Figure 3 is an exploded perspective view of the main parts of the key touch sensor, and Figures 4 to 9.
The figure shows the first electrode member, FIG. 4 is a plan view thereof,
5 is a bottom view, FIG. 6 is a diagram showing the pattern of the conductive part, FIG. 7 is a diagram showing the carbon coating layer, FIG. 8 is a diagram showing the connection end, and FIG. 9 is a diagram showing the pattern of the conductive part.
10 is a block diagram showing an electric circuit of a pedal keyboard, FIG. 11 is a perspective view showing a conventional example of a key press pressure detection device, and FIG. 12 is a sectional view showing a conventional example of a touch control device. FIG. 13 is a developed view of the insulating sheet. 44... Pedal keyboard, 55... Key touch sensor, 59... First electrode member, 60... Second electrode member, 61... Pressure-sensitive conductive elastic body, 65... First electrode, 65a, 65c, 65e...white key electrode,
65b, 65d... Black key electrode, 67... Second electrode, 68... Carbon coating layer.
Claims (1)
よび第2電極部材と、これら両電極部材間に介在
された感圧導電性弾性体とを備え、前記第1およ
び第2電極部材のうち少なくともいずれか一方
に、各白鍵にそれぞれ対応し直列接続された複数
の白鍵用電極と、各黒鍵にそれぞれ対応して直列
接続され、かつ前記白鍵用電極とは電気的に絶縁
された複数の黒鍵用電極とを形成したことを特徴
とする電子鍵盤楽器の鍵タツチセンサ。 A belt-shaped first and second electrode member extending in common to a plurality of keys, and a pressure-sensitive conductive elastic body interposed between the two electrode members, At least one of them has a plurality of white key electrodes connected in series corresponding to each white key, and a plurality of white key electrodes connected in series corresponding to each black key, and electrically insulated from the white key electrodes. A key touch sensor for an electronic keyboard instrument, characterized in that a plurality of black key electrodes are formed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1950886U JPH0544876Y2 (en) | 1986-02-14 | 1986-02-14 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1950886U JPH0544876Y2 (en) | 1986-02-14 | 1986-02-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62132592U JPS62132592U (en) | 1987-08-21 |
JPH0544876Y2 true JPH0544876Y2 (en) | 1993-11-15 |
Family
ID=30814166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1950886U Expired - Lifetime JPH0544876Y2 (en) | 1986-02-14 | 1986-02-14 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0544876Y2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0696Y2 (en) * | 1987-12-14 | 1994-01-05 | 株式会社吉田製作所 | Treader in treatment device |
JP2579748Y2 (en) * | 1993-06-17 | 1998-08-27 | 株式会社河合楽器製作所 | Keyboard device |
-
1986
- 1986-02-14 JP JP1950886U patent/JPH0544876Y2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS62132592U (en) | 1987-08-21 |
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