WO2015181856A1 - Endpin for stringed instrument - Google Patents

Endpin for stringed instrument Download PDF

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Publication number
WO2015181856A1
WO2015181856A1 PCT/JP2014/002883 JP2014002883W WO2015181856A1 WO 2015181856 A1 WO2015181856 A1 WO 2015181856A1 JP 2014002883 W JP2014002883 W JP 2014002883W WO 2015181856 A1 WO2015181856 A1 WO 2015181856A1
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Prior art keywords
stringed instrument
end pin
stringed
instrument
alloy
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PCT/JP2014/002883
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French (fr)
Japanese (ja)
Inventor
林　裕
佳平 大神田
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株式会社アーバンマテリアルズ
林　裕
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Application filed by 株式会社アーバンマテリアルズ, 林　裕 filed Critical 株式会社アーバンマテリアルズ
Priority to PCT/JP2014/002883 priority Critical patent/WO2015181856A1/en
Publication of WO2015181856A1 publication Critical patent/WO2015181856A1/en

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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10D—STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
    • G10D3/00—Details of, or accessories for, stringed musical instruments, e.g. slide-bars
    • G10D3/18—Chin-rests, hand-rests, shoulder rests or guards being removable from, or integral with the instrument

Definitions

  • the present invention relates to an end pin for a stringed instrument that supports the stringed instrument body.
  • a stringed instrument has a mechanism that produces a sound by vibrating a plurality of strings and transmitting the vibrations of the strings to the instrument body through a piece to resonate.
  • an end pin that supports the large stringed instrument is a constituent element.
  • the end pin When a performer plays a large stringed instrument, it is necessary to bring the end of the end pin into contact with the floor and to firmly support the instrument body.
  • the main purpose of the end pin is to support the instrument body so that it can be easily played, but it is known that the tone changes depending on the material and shape of the end pin.
  • the timbre of the stringed instrument is greatly influenced not only by the vibration of the instrument body but also by the resonance of the floor surface, it is preferable to reduce the vibration of the floor surface as much as possible in order to enjoy the timbre inherent to the stringed instrument.
  • Patent Document 1 Japanese Patent Laid-Open No. 2000-200082 is characterized in that in the end pin for a stringed instrument that supports the instrument body, at least two contact portions that contact the floor surface are provided at the lower end of the end pin. End pins for stringed instruments have been proposed.
  • the end pin for a stringed instrument described in Patent Document 1 has at least two end pins, so that it is possible to reliably prevent the instrument from rotating together with the end pin during performance.
  • Patent Document 2 Japanese Patent Laid-Open No. 2001-215953 proposes an end pin for a stringed instrument characterized in that a groove is provided by partially approaching the end pin body.
  • the strength of the end pin main body is obtained by attaching the end pin partially formed on the end pin main body to form a plurality of annular grooves while changing the amount of protrusion from the plug of the stringed musical instrument.
  • the ratio of the high and low parts can be changed, and by changing the resonance state of the end pin in a complex manner, it becomes possible to resonate simultaneously with high and low frequencies, and various timbres can be easily obtained. It can be done.
  • the end pin for stringed instruments disclosed in Patent Document 1 requires almost no additional parts to provide at least two contact portions that come into contact with the floor surface. Not considered. Further, the end pin for a stringed instrument disclosed in Patent Document 2 is not considered for improving the stability of the instrument body during performance, and has not been studied at all for reducing floor vibration.
  • an object of the present invention is to provide a simple end instrument for a stringed instrument that can stably support the stringed instrument main body during performance and can reduce the vibration of the floor surface. is there.
  • the present inventor is extremely effective in achieving the above object, such as providing a bent portion on the end pin for stringed instrument.
  • the present invention has been found.
  • the present invention provides a stringed instrument end pin that supports the stringed instrument body and has two or more bent portions.
  • a typical end pin for a stringed instrument is substantially rod-shaped and has one rotating shaft. As a result, it is easy to rotate during performance (when the string of the stringed instrument body is rubbed and vibrated), and it is necessary to support the instrument body firmly in order to prevent the rotation. On the other hand, since the end pin for stringed musical instrument of the present invention has two or more bent portions, there are two or more longitudinal rotation axes, and the rotation axes are difficult to be interlocked. The rotation of the stringed instrument body is suppressed.
  • a straight line from the tip end portion of the stringed instrument end pin to the first bent portion (the first bent portion counted from the tip end portion) is fixed to the lower portion of the stringed instrument main body of the stringed instrument end pin. It is preferable that the virtual extension line from the fixed part to the final bent part (the last bent part counted from the tip part) to the straight floor is not intersected.
  • the end pin for a stringed instrument has the above-mentioned shape, when the endpin for a stringed instrument is fixed to the stringed instrument body, the weight of the stringed instrument body is appropriately added to the performer, and the stringed instrument is easily held.
  • the tip of the end pin for the stringed instrument is located on the floor surface at a position farther from the performer than the intersection of the straight virtual extension line from the fixed part of the end pin for the stringed instrument to the final bent part and the floor surface. Abut. As a result, the stringed instrument body naturally falls to the player side, and the performer can easily support the stringed instrument body.
  • the end pin for a stringed instrument of the present invention preferably has an Fe—Al alloy.
  • the Fe—Al alloy can exhibit excellent vibration damping characteristics by controlling the composition and structure. By imparting vibration damping characteristics to the end pin for stringed instrument, it is possible to suppress the vibration of the stringed instrument body from being transmitted to the floor surface, and to reduce unnecessary vibration of the floor surface.
  • the Al content of the Fe—Al alloy is preferably 2 to 12% by weight. As disclosed in detail in Japanese Patent No. 5185613, when the Al content of the Fe—Al alloy is set to 2 to 12% by weight and an appropriate machining process is performed, excellent damping characteristics are obtained in the Fe—Al alloy. Can be granted.
  • As the Fe—Al alloy it is most preferable to use “Kokochi Meta” which is an Fe—Al alloy manufactured by Urban Materials Co., Ltd.
  • Shape of end pin for stringed instrument The end pin for stringed instrument of the present embodiment is characterized by having two or more bent portions. The shape of the end pin for a stringed instrument will be described in detail below.
  • FIG. 1 shows a left side view of an end pin for a stringed instrument which is an example of an embodiment of the present invention.
  • the end pin 2 for a stringed instrument shown in FIG. 1 has a so-called lightning shape having two bent portions (first bent portion 4 and final bent portion 4 ′), and 2 in the longitudinal direction (vertical direction). It has two rotating shafts (horizontal rotating shafts).
  • the stringed instrument end pin 2 includes a substantially straight first portion from the front end portion 6 to the first bent portion 4 and a substantially straight line from the first bent portion 4 to the final bent portion 4 ′.
  • the second part and the substantially straight third part from the final bent part 4 'to the fixed part 8 are configured, and the first part, the second part, and the third part are continuous.
  • the first part, the second part, and / or the third part are substantially linear, but can take various shapes within a range that does not impair the effects of the present invention.
  • the first part, the second part and / or the third part may be slightly curved, for example, or may be finely wavy.
  • the stringed instrument end pin 2 shown in FIG. 1 and FIG. 2 is a fixed part in which a substantially straight virtual extension line of the first part from the tip part 6 to the first bent part 4 is fixed to the lower part (lower surface) of the stringed instrument body 10. It is preferable not to intersect with the substantially straight virtual extension line of the third portion (up to the floor surface) from 8 to the final bent portion 4 ′. Since the stringed instrument end pin 2 has the shape, when the stringed instrument end pin 2 is fixed to the stringed instrument main body 10 and played, the weight of the stringed instrument main body is appropriately added to the player, and the stringed instrument is easily held. .
  • the end pin 2 for stringed instruments is formed from a rod, and the shape of the rod is not particularly limited as long as the effect of the present invention is not impaired. However, from the viewpoint of cost and touch, a round rod may be used. preferable.
  • the surface shape of the bar is not particularly limited, and grooves, irregularities, and the like may be formed. Moreover, since it is necessary to make the front-end
  • FIG. 2 shows a state in which a stringed instrument is played using the end pin 2 for a stringed instrument of the present invention.
  • a stringed instrument end pin 2 is fixed to the lower surface of the stringed instrument main body 10, and the distal end portion 6 is in contact with the floor surface.
  • the end pin 2 for stringed instruments has a so-called lightning bolt shape as described above, and the position of the tip 6 of the endpin 2 for stringed instruments is a position that is reasonably distant from the performer when the stringed instrument is in a sitting position. Therefore, the stringed instrument main body 10 can be easily tilted toward the performer, and the performer can easily support the stringed instrument main body 10.
  • the number of bent portions may be two or more, but it is preferably two in view of processing costs.
  • the diameter of the end pin 2 for stringed instruments is not particularly limited as long as the effect of the present invention is not impaired. However, from the viewpoint of weight and handling, it is preferably ⁇ 6 to 15 mm, and preferably ⁇ 8 to 12 mm. Is more preferable.
  • the length of the end pin 2 for stringed instruments (distance from the tip 6 to the fixed part 8) varies depending on whether the stringed instrument is played while sitting or standing.
  • it is not particularly limited as long as it does not impair the effects of the present invention, but from the viewpoint of weight and handling, it is preferably 300 to 1000 mm, more preferably 400 to 600 mm.
  • the angle of the bent portion is not particularly limited as long as it does not impair the effects of the present invention. However, when there are two bent portions, both of the bent portions are preferably obtuse or acute. (Either or both may be perpendicular). If the angle of the bent portion is a combination of an obtuse angle and an acute angle, the stringed instrument body 10 fixed to the end pin 2 for stringed instruments becomes unstable and difficult to support during performance.
  • the material of the end pin 2 for stringed instruments is not particularly limited as long as the effect of the present invention is not impaired, and various metals, wood, plastic, etc. can be used. It is preferable to have an Al alloy. In addition to being lighter than general steel, the Fe—Al alloy can exhibit excellent vibration damping characteristics by controlling the composition and structure. Since the string instrument end pin 2 has the vibration damping characteristic, the vibration of the stringed instrument body 10 can be prevented from being transmitted to the floor surface, and unnecessary floor vibration can be reduced. A part of the end pin 2 for stringed instruments may be made of Fe—Al alloy, but the whole is preferably made of Fe—Al alloy.
  • the Al content of the Fe—Al alloy is preferably 2 to 12% by weight. As disclosed in detail in Japanese Patent No. 5185613, when the Al content of the Fe—Al alloy is set to 2 to 12% by weight and an appropriate machining process is performed, excellent damping characteristics are obtained in the Fe—Al alloy. Can be granted.
  • An Fe—Al alloy obtained by forming an —Al alloy by the following step (D) can be preferably used.
  • A a step of plastic working an alloy comprising Al content of 2 to 12% by weight, the balance Fe and unavoidable impurities by hot working;
  • B a step of cold rolling the plastically processed alloy under the condition that the cross-section reduction rate is 5% or more,
  • C annealing the alloy after cold rolling under a temperature condition of 400 to 1200 ° C.
  • D A step of strong processing in warm processing at 200 ° C.
  • Kokochi Meta an Fe—Al alloy manufactured by Urban Materials Co., Ltd., can be most suitably used as the Fe—Al alloy.
  • An end pin for a stringed instrument was manufactured using “Kokochi Meta” (Fe: 8 wt%, 10 mm diameter rod), which is an Fe—Al alloy manufactured by Urban Materials Co., Ltd. Specifically, bent portions of 100 ° and 110 ° were formed at two locations on the bar, and the tip portion 6 was processed into a conical shape. An appearance photograph of the obtained end pin for stringed instrument is shown in FIG.
  • the end pin for stringed instruments of the present invention can be widely used as an end pin for large stringed instruments.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Stringed Musical Instruments (AREA)

Abstract

Provided is an easy-to-use endpin for a stringed instrument capable of stably supporting the main body of a stringed instrument during performance, while damping vibrations of a floor surface. The endpin for a stringed instrument used for supporting the main body of the stringed instrument is characterized by having two or more bent portions.

Description

弦楽器用エンドピンEnd pin for stringed instruments
　本発明は、弦楽器本体を支持する弦楽器用エンドピンに関するものである。 The present invention relates to an end pin for a stringed instrument that supports the stringed instrument body.
　弦楽器は、複数の弦を振動させ、当該弦の振動を駒によって楽器本体に伝えて共鳴させることで音を出す仕組みとなっている。ここで、チェロやコントラバス等の大型弦楽器に関しては、当該大型弦楽器を支持するエンドピンが構成要素となっている。 A stringed instrument has a mechanism that produces a sound by vibrating a plurality of strings and transmitting the vibrations of the strings to the instrument body through a piece to resonate. Here, regarding large stringed instruments such as cello and contrabass, an end pin that supports the large stringed instrument is a constituent element.
　演奏者が大型弦楽器を演奏する場合、エンドピンの先端を床面に当接させると共に、楽器本体をしっかりと支持する必要がある。エンドピンの大きな使用目的は演奏しやすいように楽器本体を支持することであるが、エンドピンの材質や形状によって音色が変化することが知られている。ここで、弦楽器の音色は楽器本体の振動のみならず、床面の共振にも大きく影響されるため、弦楽器本来の音色を楽しむためには床面の振動を極力低減することが好ましい。 When a performer plays a large stringed instrument, it is necessary to bring the end of the end pin into contact with the floor and to firmly support the instrument body. The main purpose of the end pin is to support the instrument body so that it can be easily played, but it is known that the tone changes depending on the material and shape of the end pin. Here, since the timbre of the stringed instrument is greatly influenced not only by the vibration of the instrument body but also by the resonance of the floor surface, it is preferable to reduce the vibration of the floor surface as much as possible in order to enjoy the timbre inherent to the stringed instrument.
　これに対し、特許文献１（特開２０００－２０００８２号公報）では、楽器本体を支持する弦楽器用エンドピンにおいて、エンドピンの下端に床面に接触する少なくとも２つの接触部を設けたことを特徴とする弦楽器用エンドピンが提案されている。 On the other hand, Patent Document 1 (Japanese Patent Laid-Open No. 2000-200082) is characterized in that in the end pin for a stringed instrument that supports the instrument body, at least two contact portions that contact the floor surface are provided at the lower end of the end pin. End pins for stringed instruments have been proposed.
　上記特許文献１に記載の弦楽器用エンドピンにおいては、少なくとも２つのエンドピンを有しているので、演奏の際に楽器がエンドピンと共に回転するのを確実に防止することができる、としている。 The end pin for a stringed instrument described in Patent Document 1 has at least two end pins, so that it is possible to reliably prevent the instrument from rotating together with the end pin during performance.
　また、特許文献２（特開２００１－２１５９５３号公報）では、エンドピン本体に部分的に寄せて溝を配設したことを特徴とする弦楽器用エンドピンが提案されている。 Further, Patent Document 2 (Japanese Patent Laid-Open No. 2001-215953) proposes an end pin for a stringed instrument characterized in that a groove is provided by partially approaching the end pin body.
　上記特許文献２に記載の弦楽器用エンドピンにおいては、エンドピン本体に部分的に寄せて複数の環状の溝を形成したエンドピンを弦楽器のプラグからの突き出し量を変化させて取り付けることにより、エンドピン本体の強度の高い部分と低い部分との割合を変化させることができ、エンドピンの共振状態を複雑に変化させることで高音及び低音の周波数に同時に共振させることが可能となり、様々な音色を容易に得ることができる、としている。 In the end pin for a stringed instrument described in Patent Document 2, the strength of the end pin main body is obtained by attaching the end pin partially formed on the end pin main body to form a plurality of annular grooves while changing the amount of protrusion from the plug of the stringed musical instrument. The ratio of the high and low parts can be changed, and by changing the resonance state of the end pin in a complex manner, it becomes possible to resonate simultaneously with high and low frequencies, and various timbres can be easily obtained. It can be done.
特開２０００－２０００８２号公報Japanese Unexamined Patent Publication No. 2000-200082 特開２００１－２１５９５３号公報Japanese Patent Laid-Open No. 2001-215953
　しかしながら、上記特許文献１に開示されている弦楽器用エンドピンは、床面に接触する少なくとも２つの接触部を設けるために追加の部品が必要となることに加え、弦楽器の音色の変化等については殆ど考慮されていない。また、上記特許文献２に開示されている弦楽器用エンドピンは、演奏時における楽器本体の安定性向上については考慮されておらず、床面の振動低減についても全く検討されていない。 However, the end pin for stringed instruments disclosed in Patent Document 1 requires almost no additional parts to provide at least two contact portions that come into contact with the floor surface. Not considered. Further, the end pin for a stringed instrument disclosed in Patent Document 2 is not considered for improving the stability of the instrument body during performance, and has not been studied at all for reducing floor vibration.
　以上のような従来技術における問題点に鑑み、本発明の目的は、演奏時に弦楽器本体を安定して支持できると共に、床面の振動を低減することができる簡便な弦楽器用エンドピンを提供することにある。 SUMMARY OF THE INVENTION In view of the above-described problems in the prior art, an object of the present invention is to provide a simple end instrument for a stringed instrument that can stably support the stringed instrument main body during performance and can reduce the vibration of the floor surface. is there.
　本発明者は、上記目的を達成すべく弦楽器用エンドピンの形状及び素材等について鋭意研究を重ねた結果、弦楽器用エンドピンに屈曲部を設けること等が、上記目的を達成する上で極めて有効であることを見出し、本発明に到達した。 As a result of earnest research on the shape and material of the end pin for stringed instruments in order to achieve the above object, the present inventor is extremely effective in achieving the above object, such as providing a bent portion on the end pin for stringed instrument. The present invention has been found.
　即ち、本発明は、弦楽器本体を支持する弦楽器用エンドピンであって、２箇所以上の屈曲部を有していること、を特徴とする弦楽器用エンドピンを提供する。 That is, the present invention provides a stringed instrument end pin that supports the stringed instrument body and has two or more bent portions.
　一般的な弦楽器用エンドピンは略棒状であり、回転軸が１つである。その結果、演奏中（弦楽器本体の弦を擦って振動させる際）に回転しやすく、当該回転を防止するためにはしっかりと楽器本体を支えておく必要ある。これに対し、本発明の弦楽器用エンドピンは２箇所以上の屈曲部を有しているために、長手方向の回転軸が２つ以上あり、かつ、当該回転軸が連動し難いため、演奏中における弦楽器本体の回転が抑制される。 A typical end pin for a stringed instrument is substantially rod-shaped and has one rotating shaft. As a result, it is easy to rotate during performance (when the string of the stringed instrument body is rubbed and vibrated), and it is necessary to support the instrument body firmly in order to prevent the rotation. On the other hand, since the end pin for stringed musical instrument of the present invention has two or more bent portions, there are two or more longitudinal rotation axes, and the rotation axes are difficult to be interlocked. The rotation of the stringed instrument body is suppressed.
　ここで、屈曲部が１つの場合は回転軸が２つとなるが、当該回転軸が直接に連結されることから、十分な回転抑制効果を得ることができない。これに対し、弦楽器用エンドピンが２箇所の屈曲部を有する場合、当該弦楽器用エンドピンは長手方向に２つの回転軸を有することになる。加えて、当該２つの回転軸が直接に連結されていないため、演奏中における弦楽器本体の回転を好適に抑制することができる。 Here, when there is one bent portion, there are two rotating shafts, but since the rotating shafts are directly connected, a sufficient rotation suppressing effect cannot be obtained. On the other hand, when the end pin for stringed instruments has two bent portions, the endpin for stringed instrument has two rotation axes in the longitudinal direction. In addition, since the two rotation shafts are not directly connected, rotation of the stringed instrument main body during performance can be suitably suppressed.
　本発明の弦楽器用エンドピンは、前記弦楽器用エンドピンの先端部から第一屈曲部（前記先端部から数えて最初の前記屈曲部）までの直線が、前記弦楽器用エンドピンの前記弦楽器本体の下部に固定される固定部から最終屈曲部（前記先端部から数えて最後の前記屈曲部）までの直線の床面までの仮想延長線と交わらないこと、が好ましい。 In the end pin for a stringed instrument according to the present invention, a straight line from the tip end portion of the stringed instrument end pin to the first bent portion (the first bent portion counted from the tip end portion) is fixed to the lower portion of the stringed instrument main body of the stringed instrument end pin. It is preferable that the virtual extension line from the fixed part to the final bent part (the last bent part counted from the tip part) to the straight floor is not intersected.
　弦楽器用エンドピンが上記形状を有していることで、弦楽器本体に弦楽器用エンドピンを固定して演奏する際、弦楽器本体の重量が適当に演奏者に加わる態様となり、弦楽器を保持しやすい。本発明の弦楽器用エンドピンにおいては、弦楽器用エンドピンの先端部が、弦楽器用エンドピンの固定部から最終屈曲部までの直線の仮想延長線と床面との交点よりも演奏者から遠い位置で床面と当接する。その結果、弦楽器本体が自然と演奏者側に倒れてくることになり、演奏者は弦楽器本体を容易に支持することができる。 Since the end pin for a stringed instrument has the above-mentioned shape, when the endpin for a stringed instrument is fixed to the stringed instrument body, the weight of the stringed instrument body is appropriately added to the performer, and the stringed instrument is easily held. In the end pin for a stringed instrument according to the present invention, the tip of the end pin for the stringed instrument is located on the floor surface at a position farther from the performer than the intersection of the straight virtual extension line from the fixed part of the end pin for the stringed instrument to the final bent part and the floor surface. Abut. As a result, the stringed instrument body naturally falls to the player side, and the performer can easily support the stringed instrument body.
　本発明の弦楽器用エンドピンは、Ｆｅ－Ａｌ合金を有することが好ましい。Ｆｅ－Ａｌ合金は一般的な鋼と比較して軽量であることに加え、組成及び組織の制御によって優れた制振特性を発揮することができる。弦楽器用エンドピンに制振特性を付与することで弦楽器本体の振動が床面に伝達されるのを抑制することができ、不必要な床面の振動を低減することができる。 The end pin for a stringed instrument of the present invention preferably has an Fe—Al alloy. In addition to being lighter than general steel, the Fe—Al alloy can exhibit excellent vibration damping characteristics by controlling the composition and structure. By imparting vibration damping characteristics to the end pin for stringed instrument, it is possible to suppress the vibration of the stringed instrument body from being transmitted to the floor surface, and to reduce unnecessary vibration of the floor surface.
　また、上記Ｆｅ－Ａｌ合金のＡｌ含有量は２～１２重量％であることが好ましい。特許第５１８５６１３号公報に詳細に開示されているとおり、Ｆｅ－Ａｌ合金のＡｌ含有量を２～１２重量％とし、適当な加工プロセスを経ることで、Ｆｅ－Ａｌ合金に優れた制振特性を付与することができる。なお、Ｆｅ－Ａｌ合金としては、株式会社アーバンマテリアルズ製のＦｅ－Ａｌ合金である「ここちメタ」を使用することが最も好ましい。 The Al content of the Fe—Al alloy is preferably 2 to 12% by weight. As disclosed in detail in Japanese Patent No. 5185613, when the Al content of the Fe—Al alloy is set to 2 to 12% by weight and an appropriate machining process is performed, excellent damping characteristics are obtained in the Fe—Al alloy. Can be granted. As the Fe—Al alloy, it is most preferable to use “Kokochi Meta” which is an Fe—Al alloy manufactured by Urban Materials Co., Ltd.
　本発明によれば、演奏時に弦楽器本体を安定して支持できると共に、床面の振動を低減することができる簡便な弦楽器用エンドピンを提供することができる。 According to the present invention, it is possible to provide a simple end instrument for a stringed instrument that can stably support the stringed instrument main body during performance and can reduce the vibration of the floor surface.
本発明の実施形態の一例である弦楽器用エンドピンの左側面図である。It is a left view of the end pin for stringed instruments which is an example of embodiment of this invention. 本発明の弦楽器用エンドピンを用いて弦楽器を座奏する際の状態を示す側面図である。It is a side view which shows the state at the time of sitting a stringed instrument using the end pin for stringed instruments of this invention. 本発明の弦楽器用エンドピンの一例を示す外観写真である。It is an external appearance photograph which shows an example of the end pin for stringed instruments of this invention.
　以下、本発明の弦楽器用エンドピンの好適な一実施形態について詳細に説明する。なお、以下の説明では、本発明の一実施形態を示すに過ぎず、これらによって本発明が限定されるものではなく、また、重複する説明は省略することがある。 Hereinafter, a preferred embodiment of the end pin for stringed instrument of the present invention will be described in detail. In addition, in the following description, only one embodiment of the present invention is shown, and the present invention is not limited by these, and redundant description may be omitted.
（１）弦楽器用エンドピンの形状
　本実施形態の弦楽器用エンドピンは、２箇所以上の屈曲部を有していること、を特徴とする。以下において弦楽器用エンドピンの形状について詳細に説明する。 (1) Shape of end pin for stringed instrument The end pin for stringed instrument of the present embodiment is characterized by having two or more bent portions. The shape of the end pin for a stringed instrument will be described in detail below.
　図１に本発明の実施形態の一例である弦楽器用エンドピンの左側面図を示す。図１に示されている弦楽器用エンドピン２は、２箇所の屈曲部（第一屈曲部４及び最終屈曲部４’）を有する、所謂稲妻形状をしており、長手方向（鉛直方向）に２つの回転軸（水平方向の回転軸）を有している。 FIG. 1 shows a left side view of an end pin for a stringed instrument which is an example of an embodiment of the present invention. The end pin 2 for a stringed instrument shown in FIG. 1 has a so-called lightning shape having two bent portions (first bent portion 4 and final bent portion 4 ′), and 2 in the longitudinal direction (vertical direction). It has two rotating shafts (horizontal rotating shafts).
　弦楽器用エンドピン２は、図１、図２に示すように、先端部６から第一屈曲部４までの略直線状の第一部分と、第一屈曲部４から最終屈曲部４’までの略直線状の第二部分と、最終屈曲部４’から固定部８までの略直線状の第三部分と、で構成されており、これら第一部、第二部及び第三部は連続している。上記第一部分、第二部分及び／又は第三部分は、略直線状であるが、本発明の効果を損なわない範囲で種々の形状を取り得る。上記第一部分、第二部分及び／又は第三部分は、例えば若干カーブしていても構わないし、また、微細に波打っていてもよい。 As shown in FIGS. 1 and 2, the stringed instrument end pin 2 includes a substantially straight first portion from the front end portion 6 to the first bent portion 4 and a substantially straight line from the first bent portion 4 to the final bent portion 4 ′. The second part and the substantially straight third part from the final bent part 4 'to the fixed part 8 are configured, and the first part, the second part, and the third part are continuous. . The first part, the second part, and / or the third part are substantially linear, but can take various shapes within a range that does not impair the effects of the present invention. The first part, the second part and / or the third part may be slightly curved, for example, or may be finely wavy.
　図１、図２に示す弦楽器用エンドピン２は、先端部６から第一屈曲部４までの第一部分の略直線状の仮想延長線が、弦楽器本体１０の下部（下面）に固定される固定部８から最終屈曲部４’までの第三部分（床面まで）の略直線状の仮想延長線と交わらないこと、が好ましい。弦楽器用エンドピン２が当該形状を有していることで、弦楽器本体１０に弦楽器用エンドピン２を固定して演奏する際、弦楽器本体の重量が適当に演奏者に加わる態様となり、弦楽器を保持しやすい。 The stringed instrument end pin 2 shown in FIG. 1 and FIG. 2 is a fixed part in which a substantially straight virtual extension line of the first part from the tip part 6 to the first bent part 4 is fixed to the lower part (lower surface) of the stringed instrument body 10. It is preferable not to intersect with the substantially straight virtual extension line of the third portion (up to the floor surface) from 8 to the final bent portion 4 ′. Since the stringed instrument end pin 2 has the shape, when the stringed instrument end pin 2 is fixed to the stringed instrument main body 10 and played, the weight of the stringed instrument main body is appropriately added to the player, and the stringed instrument is easily held. .
　弦楽器用エンドピン２は棒材から成形され、本発明の効果を損なわない範囲であれば棒材の形状は特に限定されるものではないが、コスト及び手触り等の観点から、丸棒を用いることが好ましい。ここで、当該棒材の表面形状は特に制限されず、溝や凹凸等を形成してもよい。また、先端部６は床面に当接させて自在に方向転換させる必要があるため、円錐状とすることが好ましい。 The end pin 2 for stringed instruments is formed from a rod, and the shape of the rod is not particularly limited as long as the effect of the present invention is not impaired. However, from the viewpoint of cost and touch, a round rod may be used. preferable. Here, the surface shape of the bar is not particularly limited, and grooves, irregularities, and the like may be formed. Moreover, since it is necessary to make the front-end | tip part 6 contact | abut to a floor surface and to change direction freely, it is preferable to make it cone shape.
　図２に本発明の弦楽器用エンドピン２を用いて弦楽器を座奏する際の状態を示す。弦楽器本体１０の下面には弦楽器用エンドピン２が固定されており、先端部６は床面に当接した状態となっている。ここで、弦楽器用エンドピン２は、上記のように、所謂稲妻形状をしており、弦楽器を座奏する際の状態においては、弦楽器用エンドピン２の先端部６の位置が演奏者から適度に遠い位置にあるため、弦楽器本体１０を演奏者側に傾斜させやすく、演奏者は弦楽器本体１０を容易に支持することができる。 FIG. 2 shows a state in which a stringed instrument is played using the end pin 2 for a stringed instrument of the present invention. A stringed instrument end pin 2 is fixed to the lower surface of the stringed instrument main body 10, and the distal end portion 6 is in contact with the floor surface. Here, the end pin 2 for stringed instruments has a so-called lightning bolt shape as described above, and the position of the tip 6 of the endpin 2 for stringed instruments is a position that is reasonably distant from the performer when the stringed instrument is in a sitting position. Therefore, the stringed instrument main body 10 can be easily tilted toward the performer, and the performer can easily support the stringed instrument main body 10.
　本発明の弦楽器用エンドピン２においては、屈曲部は２箇所以上であればよいが、加工費等の観点から２箇所とすることが好ましい。弦楽器用エンドピン２の直径は、本発明の効果を損なわない範囲であれば特に限定されるものではないが、重量及び取扱いの観点から、φ６～１５ｍｍとすることが好ましく、φ８～１２ｍｍとすることがより好ましい。 In the end pin 2 for stringed instruments of the present invention, the number of bent portions may be two or more, but it is preferably two in view of processing costs. The diameter of the end pin 2 for stringed instruments is not particularly limited as long as the effect of the present invention is not impaired. However, from the viewpoint of weight and handling, it is preferably φ6 to 15 mm, and preferably φ8 to 12 mm. Is more preferable.
　また、弦楽器用エンドピン２の長さ（先端部６から固定部８までの距離）は、弦楽器を座った状態で演奏するのか、或いは、立った状態で演奏するのかによっても異なってくることは言うまでもなく、本発明の効果を損なわない範囲であれば特に限定されるものではないが、重量及び取扱いの観点から、３００～１０００ｍｍとすることが好ましく、４００～６００ｍｍとすることがより好ましい。 Further, it goes without saying that the length of the end pin 2 for stringed instruments (distance from the tip 6 to the fixed part 8) varies depending on whether the stringed instrument is played while sitting or standing. In addition, it is not particularly limited as long as it does not impair the effects of the present invention, but from the viewpoint of weight and handling, it is preferably 300 to 1000 mm, more preferably 400 to 600 mm.
　なお、屈曲部の角度は、本発明の効果を損なわない範囲であれば特に限定されるものではないが、屈曲部が２箇所の場合、屈曲部の角度は共に鈍角又は鋭角であることが好ましい（どちらか一方又は両方を直角としてもよい）。屈曲部の角度を鈍角と鋭角の組み合わせとすると、弦楽器用エンドピン２に固定した弦楽器本体１０が不安定となり、演奏中に支持することが困難となる。 The angle of the bent portion is not particularly limited as long as it does not impair the effects of the present invention. However, when there are two bent portions, both of the bent portions are preferably obtuse or acute. (Either or both may be perpendicular). If the angle of the bent portion is a combination of an obtuse angle and an acute angle, the stringed instrument body 10 fixed to the end pin 2 for stringed instruments becomes unstable and difficult to support during performance.
（２）弦楽器用エンドピンの材質
　弦楽器用エンドピン２の材質は、本発明の効果を損なわない範囲であれば特に限定されるものではなく、各種金属、木材及びプラスチック等を用いることができるが、Ｆｅ－Ａｌ合金を有することが好ましい。Ｆｅ－Ａｌ合金は一般的な鋼と比較して軽量であることに加え、組成及び組織の制御によって優れた制振特性を発揮することができる。弦楽器用エンドピン２が制振特性を有することで、弦楽器本体１０の振動が床面に伝達されるのを抑制することができ、不必要な床面の振動を低減することができる。なお、弦楽器用エンドピン２の一部分をＦｅ－Ａｌ合金としてもよいが、全体をＦｅ－Ａｌ合金とすることが好ましい。 (2) Material of the end pin for stringed instruments The material of the endpin 2 for stringed instruments is not particularly limited as long as the effect of the present invention is not impaired, and various metals, wood, plastic, etc. can be used. It is preferable to have an Al alloy. In addition to being lighter than general steel, the Fe—Al alloy can exhibit excellent vibration damping characteristics by controlling the composition and structure. Since the string instrument end pin 2 has the vibration damping characteristic, the vibration of the stringed instrument body 10 can be prevented from being transmitted to the floor surface, and unnecessary floor vibration can be reduced. A part of the end pin 2 for stringed instruments may be made of Fe—Al alloy, but the whole is preferably made of Fe—Al alloy.
　また、上記Ｆｅ－Ａｌ合金のＡｌ含有量は２～１２重量％であることが好ましい。特許第５１８５６１３号公報に詳細に開示されているとおり、Ｆｅ－Ａｌ合金のＡｌ含有量を２～１２重量％とし、適当な加工プロセスを経ることで、Ｆｅ－Ａｌ合金に優れた制振特性を付与することができる。 The Al content of the Fe—Al alloy is preferably 2 to 12% by weight. As disclosed in detail in Japanese Patent No. 5185613, when the Al content of the Fe—Al alloy is set to 2 to 12% by weight and an appropriate machining process is performed, excellent damping characteristics are obtained in the Fe—Al alloy. Can be granted.
　具体的には、下記工程（Ａ）～（Ｃ）を含む製造方法により製造されたＡｌ含有量２～１２重量％、残部Ｆｅ及び不可避的不純物からなり、平均結晶粒径が２５０μｍ以下であるＦｅ－Ａｌ合金を、下記工程（Ｄ）により成形して得られるＦｅ－Ａｌ合金を好適に用いることができる。
（Ａ）Ａｌ含有量２～１２重量％、残部Ｆｅ及び不可避的不純物からなる合金を熱間加工により塑性加工する工程、
（Ｂ）塑性加工した合金を断面減少率が５％以上となる条件で冷間圧延加工する工程、
（Ｃ）冷間圧延加工後の合金を４００～１２００℃の温度条件下で焼鈍する工程、
（Ｄ）２００℃での温間加工において強加工する工程。 Specifically, Fe containing 2 to 12% by weight of Al produced by a production method including the following steps (A) to (C), the balance Fe and unavoidable impurities, and having an average crystal grain size of 250 μm or less. An Fe—Al alloy obtained by forming an —Al alloy by the following step (D) can be preferably used.
(A) a step of plastic working an alloy comprising Al content of 2 to 12% by weight, the balance Fe and unavoidable impurities by hot working;
(B) a step of cold rolling the plastically processed alloy under the condition that the cross-section reduction rate is 5% or more,
(C) annealing the alloy after cold rolling under a temperature condition of 400 to 1200 ° C.,
(D) A step of strong processing in warm processing at 200 ° C.
　なお、より具体的には、株式会社アーバンマテリアルズ製のＦｅ－Ａｌ合金である「ここちメタ」をＦｅ－Ａｌ合金として最も好適に使用することができる。 More specifically, “Kokochi Meta”, an Fe—Al alloy manufactured by Urban Materials Co., Ltd., can be most suitably used as the Fe—Al alloy.
　以上、本発明の代表的な実施形態について説明したが、本発明はこれらのみに限定されるものではない。また、以下において、実施例を用いて本発明の弦楽器用エンドピンについて更に説明するが、本発明はこれらの実施例に何ら限定されるものではない。 As mentioned above, although typical embodiment of this invention was described, this invention is not limited only to these. Further, in the following, the end pin for stringed instrument of the present invention will be further described using examples, but the present invention is not limited to these examples.
　株式会社アーバンマテリアルズ製のＦｅ－Ａｌ合金である「ここちメタ」（Ｆｅ：８重量％，直径１０ｍｍの棒材）を用い、弦楽器用エンドピンを製造した。具体的には、棒材の２箇所に１００°及び１１０°の屈曲部を形成し、先端部６を円錐状に加工した。得られた弦楽器用エンドピンの外観写真を図３に示す。 An end pin for a stringed instrument was manufactured using “Kokochi Meta” (Fe: 8 wt%, 10 mm diameter rod), which is an Fe—Al alloy manufactured by Urban Materials Co., Ltd. Specifically, bent portions of 100 ° and 110 ° were formed at two locations on the bar, and the tip portion 6 was processed into a conical shape. An appearance photograph of the obtained end pin for stringed instrument is shown in FIG.
　本発明の弦楽器用エンドピン２の制振効果を確認するため、１００人を対象とした演奏会を行った。具体的には、チェロのエンドピンとして、図３に示す本発明の弦楽器用エンドピン２及び汎用の鋼製エンドピンを用い、どちらのエンドピンを用いた場合の音色が好みかを調査した。その結果、１００人中９５人が本発明の弦楽器用エンドピン２を用いた場合の音色を支持し、本発明の効果が実証された。 In order to confirm the vibration control effect of the end pin 2 for stringed instrument of the present invention, a performance was held for 100 people. Specifically, the end pin 2 for the stringed instrument of the present invention shown in FIG. 3 and a general-purpose steel end pin shown in FIG. 3 were used as the cello end pin, and which end pin was used was examined for preference. As a result, 95 out of 100 people supported the timbre when the end pin 2 for stringed instrument of the present invention was used, and the effect of the present invention was demonstrated.
　本発明の弦楽器用エンドピンは、大型弦楽器用のエンドピンとして幅広く用いることができる。 The end pin for stringed instruments of the present invention can be widely used as an end pin for large stringed instruments.
２・・・弦楽器用エンドピン、
４・・・第一屈曲部、
４’・・・最終屈曲部、
６・・・先端部、
８・・・固定部、
１０・・・弦楽器本体。 2 ... End pin for string instruments,
4 ... 1st bending part,
4 ′ ・ ・ ・ Final bent part,
6 ... tip part,
8: fixed part,
10 ... Stringed instrument body.

Claims (4)

  1. 　弦楽器本体を支持する弦楽器用エンドピンであって、
    　２箇所以上の屈曲部を有していること、
    　を特徴とする弦楽器用エンドピン。     An end pin for a stringed instrument that supports the stringed instrument body,
    Having two or more bends,
    End pin for stringed instruments characterized by
  2. 　前記弦楽器用エンドピンの先端部から第一屈曲部（前記先端部から数えて最初の前記屈曲部）までの直線が、前記弦楽器用エンドピンの前記弦楽器本体の下部に固定される固定部から最終屈曲部（前記先端部から数えて最後の前記屈曲部）までの直線の床面までの仮想延長線と交わらないこと、
    　を特徴とする請求項１に記載の弦楽器用エンドピン。     The straight line from the tip of the stringed instrument end pin to the first bent part (the first bent part counted from the tip) is fixed to the lower part of the stringed instrument body of the stringed instrument end pin to the final bent part. Do not intersect with the virtual extension line to the floor surface of the straight line to (the last bent portion counted from the tip portion),
    The end pin for a stringed instrument according to claim 1, wherein:
  3. 　Ｆｅ－Ａｌ合金を有すること、
    　を特徴とする請求項１又は２に記載の弦楽器用エンドピン。     Having an Fe-Al alloy,
    The end pin for a stringed instrument according to claim 1 or 2, wherein
  4. 　前記Ｆｅ－Ａｌ合金のＡｌ含有量が２～１２重量％であること、
    　を特徴とする請求項１～３のうちのいずれかに記載の弦楽器用エンドピン。     The Al content of the Fe—Al alloy is 2 to 12% by weight;
    The end pin for a stringed instrument according to any one of claims 1 to 3, wherein:
PCT/JP2014/002883 2014-05-30 2014-05-30 Endpin for stringed instrument WO2015181856A1 (en)

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