JPS5854398B2 - Hammer for electric piano and its manufacturing method - Google Patents

Hammer for electric piano and its manufacturing method

Info

Publication number
JPS5854398B2
JPS5854398B2 JP53050817A JP5081778A JPS5854398B2 JP S5854398 B2 JPS5854398 B2 JP S5854398B2 JP 53050817 A JP53050817 A JP 53050817A JP 5081778 A JP5081778 A JP 5081778A JP S5854398 B2 JPS5854398 B2 JP S5854398B2
Authority
JP
Japan
Prior art keywords
hammer
elastic columns
elastic
electric piano
leather
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
Application number
JP53050817A
Other languages
Japanese (ja)
Other versions
JPS54143221A (en
Inventor
昌和 松本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kawai Musical Instrument Manufacturing Co Ltd
Original Assignee
Kawai Musical Instrument Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kawai Musical Instrument Manufacturing Co Ltd filed Critical Kawai Musical Instrument Manufacturing Co Ltd
Priority to JP53050817A priority Critical patent/JPS5854398B2/en
Publication of JPS54143221A publication Critical patent/JPS54143221A/en
Publication of JPS5854398B2 publication Critical patent/JPS5854398B2/en
Expired legal-status Critical Current

Links

Description

【発明の詳細な説明】 本発明は電気ピアノ用・・ンマ及びその製造方法に関す
る。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric piano instrument and a manufacturing method thereof.

従来、この種ハンマは例えば、第1図示のようにハンマ
本体素材板aの先端に突条すを設け、これにアンダフエ
ルトcを接着すると共にその上に低音側から高音側に向
って肉厚を薄くしたトップブエル)dを巻付けて接着し
、これを点線示のように切断して各弦に対応するノ・ン
マを得ることが知られている。
Conventionally, in this type of hammer, for example, as shown in the first diagram, a protrusion is provided at the tip of the hammer body material plate a, an under felt c is adhered to this, and a thick wall is attached on top of it from the bass side to the treble side. It is known to wrap and glue a thin top bell) and cut it as shown by the dotted line to obtain a number corresponding to each string.

第2図Aはその切断によって得られた低音用ハンマ、第
2図Bは高音用ハンマである。
FIG. 2A shows a low-pitched hammer obtained by the cutting, and FIG. 2B shows a high-pitched hammer.

これはピアノが低音側では大きな打弦力を必要とするこ
と、高音側では打弦力の再吸収を防ぐため短い接触時間
と高い硬度を必要とすること、及び高音から低音にわた
って音色むらがないこと等の要求を満すものとして用い
られていた。
This is because the piano requires a large string striking force on the bass side, short contact time and high hardness on the treble side to prevent reabsorption of the striking force, and the fact that there is no uneven tone from treble to bass. It was used to meet the following needs.

しかし、このものは電気ピアノに用いるときは、低音側
のハンマの重量が太きいため弦自体に対する衝撃が大き
く、衝撃音及び振動音が大きく、電気ピアノ用としては
不向きであった。
However, when this device was used for an electric piano, the weight of the hammer on the bass side was heavy, which caused a large impact on the string itself, and produced large impact and vibration noises, making it unsuitable for use in electric pianos.

そのため種々の手段が考えられているが、弦自体の衝撃
音及び振動音は小さく、そして得られる音を本来のピア
ノのように低音から高音にわたって音色や音量にむらの
ないものとすることが出来なかった。
Various methods have been considered for this purpose, but it is possible to make the impact noise and vibration noise of the strings themselves small, and to make the resulting sound uniform in tone and volume from bass to treble like a real piano. There wasn't.

従来、この音色や音量のむらはファイリング、ピッカリ
ングといった処理により修正しているが、その調整に手
数を要するばかりでなく、相当年月を経て熟練した者で
なければ正しい修正が出来ない等の欠点があった。
Traditionally, this unevenness in tone and volume has been corrected by processing such as filing and pickering, but this adjustment not only requires a lot of effort, but also has drawbacks such as the fact that only an experienced person with many years of experience can correct it correctly. was there.

本考案はこのような欠点の無い電気ピアノ用ノ・ンマを
提供することを目的とするもので、第1発明はハンマ本
体の前端面に2本の弾性柱を適宜の間隔を存して接着し
、これら弾性柱を含む前端を皮革で被包して成る電気ピ
アノ用ノ・ンマであり、第2発明はハンマ本体素材板の
前端面にその長さ方向に沿わせて適宜の間隔を存して2
本の弾性柱を接着し、これら2本の弾性柱を含む前端を
皮革で被包し、これを長さ方向に直角の線で切断するこ
とを特徴とする第1発明における電気ピアノ用ハンマの
製造方法であり、第3発明はノ・ンマ本体素材板の前端
面にその長さ方向に沿わせて2本の弾性柱を少なくとも
一方を傾斜させて接着し、これら2本の弾性柱を含む前
端を皮革で被包し、これを長さ方向に直角の線で切断す
ることを特徴とする第1発明における電気ピアノ用ハン
マの製造方法である。
The object of the present invention is to provide a hammer for an electric piano that does not have such drawbacks. The hammer for an electric piano is made by covering the front end including these elastic columns with leather, and the second invention is a hammer for an electric piano in which the front end surface of the hammer body material plate is provided with an appropriate interval along its length. then 2
A hammer for an electric piano according to the first invention, characterized in that elastic pillars of a book are glued together, the front end including these two elastic pillars is covered with leather, and this is cut along a line perpendicular to the length direction. The third invention is a manufacturing method, in which two elastic columns are bonded to the front end surface of the main body material plate along the length thereof with at least one side inclined, and the two elastic columns are included. A method for manufacturing an electric piano hammer according to the first invention, characterized in that the front end is covered with leather and the leather is cut along a line perpendicular to the length direction.

次に本発明の実施例を別紙図面について説明する。Next, embodiments of the present invention will be described with reference to the attached drawings.

第3図において、1はハンマ本体を示し、該ハンマ本体
1の前面に、2本のウレタンゴムその他の弾性柱2,3
を間隔を存して接着し、これら弾性柱2,3を含むハン
マ本体1の前端部を合成樹脂製その他の皮革4で被包し
てその両端においてハンマ本体1に接着してハンマAを
構成した。
In FIG. 3, reference numeral 1 indicates a hammer body, and two elastic columns 2, 3 made of urethane rubber or other material are attached to the front surface of the hammer body 1.
The front end of the hammer body 1 including these elastic columns 2 and 3 is covered with a synthetic resin or other leather 4, and both ends are adhered to the hammer body 1 to form a hammer A. did.

そして、前記弾性柱2,30間隔は低音側においては広
幅に、高音側に向って順次狭幅にし、高音部においては
両者2,3が接触した状態とした。
The spacing between the elastic columns 2 and 30 was widened on the bass side and gradually narrowed toward the treble side, so that the elastic columns 2 and 3 were in contact with each other in the treble section.

かくて、各ハンマAの重量は同じで、弦に接触する面積
は低音側から高音側に向って順次小さくなる。
Thus, the weight of each hammer A is the same, and the area in contact with the string gradually decreases from the bass side to the treble side.

従って、各ハンマAの重量を高音側ハンマに合せるとす
べて軽量となり、低音側弦に対する衝撃音及び振動音は
小さくなり、その弦に対する接触面積は大きくなること
により基音成分を強調して高調波を押えて、いわゆる低
音らしい音色をつくる。
Therefore, if the weight of each hammer A is matched to that of the treble side hammer, all of them will be lighter, the impact noise and vibration noise on the bass side strings will be reduced, and the contact area with that string will become larger, thereby emphasizing the fundamental tone component and suppressing harmonics. Press down to create a so-called bass-like tone.

そして、その接触幅が高音に向って順次小さくなること
により高調波の押えが解かれてスピーカから得られる音
に音色や音量のむらが無くなる。
Then, as the contact width gradually decreases toward higher frequencies, the hold on harmonics is released, and the sound obtained from the speaker has no unevenness in timbre or volume.

以上の実施例に示した各ハンマAは、例えば低音側のも
のについて見るに、第4図示のようにハンマ本体素材板
1aの前面に長い弾性柱2a。
Each of the hammers A shown in the above embodiments has a long elastic column 2a on the front side of the hammer body material plate 1a, as shown in the fourth figure, for example on the bass side.

3aを接着し、両弾性柱2a 、3aを含む前端部を帯
状の皮革4aで被包して接着し、これを切断線B、B、
・・・・・・・・・切断して同一のハンマAの複数個を
得る。
3a, and the front end including both elastic columns 2a, 3a is covered with a band-shaped leather 4a and glued, and this is cut along cutting lines B, B,
...... Cut to obtain multiple pieces of the same hammer A.

このようにして各弦に対応するハンマをつくり、その各
1個を取出して各弦に対応する一連のハンマとして使用
する。
In this way, a hammer corresponding to each string is made, and each hammer is taken out and used as a series of hammers corresponding to each string.

以上の実施例に示した各ハンマは2本の弾性柱2.3の
間隔を各別に設定したが、各個に設定することは誤差も
多くなる。
In each of the hammers shown in the above embodiments, the spacing between the two elastic columns 2.3 is set separately, but setting the spacing individually increases the number of errors.

第5図乃至第7図に示す実施例はかかる誤差の生じない
ようにしたもので、ハンマ本体素材板1bの前面に、第
5図示のように2本の弾性柱2b 、3bの一方2bを
前面の側縁に並行に接着すると共に、他方3bを傾斜さ
せて一端で広幅にし、他端において接合させて接着し、
次で、第6図示のように弾性柱2b、3bを前端部を帯
状の・皮革4bで被包して接着した。
The embodiments shown in FIGS. 5 to 7 are designed to prevent such errors from occurring, and one of the two elastic columns 2b and 3b, 2b, is attached to the front of the hammer body material plate 1b as shown in FIG. At the same time, it is glued in parallel to the side edge of the front surface, and the other side 3b is tilted to make it wider at one end, and joined and glued at the other end,
Next, as shown in Figure 6, the front ends of the elastic columns 2b and 3b were covered with a band-shaped leather 4b and adhered.

そして、切断線B。B・・・・・・・・・で切断すると
各ハンマAの弾性柱2,30間隔は左側から右側に向っ
て順次狭幅のものとなり、各弦に対応したものとなる。
And cutting line B. When cutting at point B, the spacing between the elastic columns 2 and 30 of each hammer A becomes progressively narrower from the left side to the right side, corresponding to each string.

尚、最高音部においては一方の弾性柱2のみとしても良
い。
Incidentally, in the highest pitch part, only one elastic column 2 may be used.

また、第5図においては1方の弾性柱3bのみを傾斜さ
せたが、両者2b 、3bを互に内方に傾斜させても同
じである。
Further, in FIG. 5, only one elastic column 3b is inclined, but the same effect can be achieved even if both elastic columns 2b and 3b are inclined inwardly.

このように本発明によるときは、2本の弾性柱の間隔を
設定することによって各弦に対応したハンマを得ること
が出来、低音側の重量を大きくする必要がないので、弦
の衝撃音及びその振動音が小さくなり、尚も低音側では
打弦面積を広くして高調波を押えて低音の強調された音
をスピーカから得ることが出来、音色、音量にむらのな
い音が得られ、また、・・ンマ本体素材板において弾性
柱の間隔を設定して取付けることによって所望の弦に対
応する複数のハンマが同時に多数出来、更にハンマ本体
素材板に2本の弾性柱の少なくとも1方を傾斜させて接
着することによって電気ピアノの複数の弦に各対応する
複数のハンマが同時に出来る等の効果がある。
As described above, according to the present invention, by setting the interval between the two elastic columns, it is possible to obtain a hammer corresponding to each string, and there is no need to increase the weight on the bass side, thereby reducing the impact noise of the strings and The vibration noise is reduced, and by widening the string striking area on the bass side, it is possible to suppress harmonics and obtain an emphasized bass sound from the speaker, and a sound with even tone and volume. In addition, by setting the spacing between the elastic columns on the hammer body material plate and attaching them, multiple hammers corresponding to the desired string can be installed at the same time. By gluing them at an angle, it is possible to simultaneously create a plurality of hammers corresponding to a plurality of strings of an electric piano.

【図面の簡単な説明】[Brief explanation of drawings]

第1図及び第2図はピアノ用・・ンマの製造方法を示す
斜視図、第3図及び第4図は本発明の1実施例を示すも
ので、第3図は・・ンマの斜視図、第4図はその製造方
法を示す斜視図、第5図乃至第7図は本発明の他の実施
例を示すもので、第5図及び第6図はその製造方法を示
す斜視図、第7図はその製造方法により得られたハンマ
の斜視図である。 1・・・・・・・・ンマ本体、1a、1b・・・・・・
・・ンマ本体素材板、2 、2a 、 2b 、 3
> 3a 、 3b・−・−弾性柱、4,4a、4b・
・・・・・皮革。
Figures 1 and 2 are perspective views showing a method of manufacturing a piano lever, Figures 3 and 4 show an embodiment of the present invention, and Figure 3 is a perspective view of a lever. , FIG. 4 is a perspective view showing the manufacturing method, FIGS. 5 to 7 show other embodiments of the present invention, and FIGS. 5 and 6 are perspective views showing the manufacturing method. FIG. 7 is a perspective view of a hammer obtained by the manufacturing method. 1......Main body, 1a, 1b...
・・Main body material plate, 2, 2a, 2b, 3
> 3a, 3b...-elastic column, 4, 4a, 4b...
·····leather.

Claims (1)

【特許請求の範囲】 1 ハンマ本体の前端面に2本の弾性柱を適宜の間隔を
存して接着し、これら弾性柱を含む前端を皮革で被包し
て成る電気ピアノ用ノ・ンマ。 2 ハンマ本体素材板の前端面にその長さ方向に沿わせ
て適宜の間隔を存して2本の弾性柱を接着し、これら2
本の弾性柱を含む前端を皮革で被包し、これを長さ方向
に直角の線で切断することを特徴とする電気ピアノ用ハ
ンマの製造方法。 3 ハンマ本体素材板の前端面にその長さ方向に沿わせ
て2本の弾性柱を少なくとも一方を傾斜させて接着し、
これら2本の弾性柱を含む前端を皮革で被包し、これを
長さ方向に直角の線で切断することを特徴とする電気ピ
アノ用ノ・ンマの製造方法。
[Scope of Claims] 1. A hammer for an electric piano comprising two elastic columns bonded to the front end surface of a hammer body at an appropriate interval, and the front end including these elastic columns covered with leather. 2. Glue two elastic columns along the length direction of the front end surface of the hammer body material plate at an appropriate interval, and
A method for producing a hammer for an electric piano, characterized in that the front end of a book including an elastic column is covered with leather and then cut along a line perpendicular to the length direction. 3. Glue two elastic columns along the length of the front end surface of the hammer body material plate with at least one side inclined;
A method for producing a nozzle for an electric piano, characterized in that the front end including these two elastic columns is covered with leather, and this is cut along a line perpendicular to the length direction.
JP53050817A 1978-04-28 1978-04-28 Hammer for electric piano and its manufacturing method Expired JPS5854398B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53050817A JPS5854398B2 (en) 1978-04-28 1978-04-28 Hammer for electric piano and its manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53050817A JPS5854398B2 (en) 1978-04-28 1978-04-28 Hammer for electric piano and its manufacturing method

Publications (2)

Publication Number Publication Date
JPS54143221A JPS54143221A (en) 1979-11-08
JPS5854398B2 true JPS5854398B2 (en) 1983-12-05

Family

ID=12869307

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53050817A Expired JPS5854398B2 (en) 1978-04-28 1978-04-28 Hammer for electric piano and its manufacturing method

Country Status (1)

Country Link
JP (1) JPS5854398B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08207890A (en) * 1995-02-08 1996-08-13 Usui Denkai Kogyo:Kk Marine propeller and its manufacture

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6241357Y2 (en) * 1981-06-12 1987-10-22
JPH07117828B2 (en) * 1986-11-28 1995-12-18 株式会社河合楽器製作所 Piano hammer manufacturing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08207890A (en) * 1995-02-08 1996-08-13 Usui Denkai Kogyo:Kk Marine propeller and its manufacture

Also Published As

Publication number Publication date
JPS54143221A (en) 1979-11-08

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