(第1実施形態)
以下、図1〜図10を参照して、この発明を電子鍵盤楽器に適用した第1実施形態について説明する。
この電子鍵盤楽器は、図1および図2に示すように、鍵盤装置1を備えている。この鍵盤装置1は、楽器ケース(図示せず)内に組み込まれるものである。この鍵盤装置1は、並列に配列された複数の鍵2と、これら複数の鍵2の押鍵操作に応じて各鍵2それぞれにアクション荷重を付与するアクション機構3と、を備えている。
(First embodiment)
A first embodiment in which the present invention is applied to an electronic keyboard instrument will be described below with reference to FIGS.
As shown in FIGS. 1 and 2, the electronic keyboard instrument includes a keyboard device 1. The keyboard device 1 is incorporated in a musical instrument case (not shown). The keyboard device 1 includes a plurality of keys 2 arranged in parallel, and an action mechanism 3 that applies an action load to each key 2 in response to a key pressing operation of the plurality of keys 2.
複数の鍵2は、図1および図2に示すように、白鍵2aおよび黒鍵2bを有し、これら白鍵2aおよび黒鍵2bが例えば88個並列に配列されている。これら複数の鍵2は、その前後方向(図2では左右方向)におけるほぼ中間部がそれぞれバランスピン4a、4bによって上下方向に回転可能に支持され、この状態でベース板5上に並列に配列されている。
As shown in FIGS. 1 and 2, each of the plurality of keys 2 includes a white key 2a and a black key 2b. For example, 88 white keys 2a and black keys 2b are arranged in parallel. The plurality of keys 2 are supported so that their intermediate portions in the front-rear direction (left-right direction in FIG. 2) are rotatable in the vertical direction by the balance pins 4a, 4b, respectively, and are arranged in parallel on the base plate 5 in this state. ing.
この場合、ベース板5上には、図2に示すように、複数の鍵2の各前端部(図2では右端部)の各下面がそれぞれ接離可能に当接するクッション材6a、6bが鍵2の配列方向に沿って設けられている。また、このベース板5上には、複数の鍵2の各後端部(図2では左端部)の各下面がそれぞれ接離可能に当接するクッション材7が鍵2の配列方向に沿って設けられている。さらに、このベース板5上には、複数の鍵2がその配列方向に横振れするのを防ぐためのガイドピン8a、8bがそれぞれ起立して設けられている。
In this case, as shown in FIG. 2, cushion materials 6a and 6b on which the lower surfaces of the front end portions (the right end portion in FIG. 2) of the plurality of keys 2 come into contact with and separate from each other are provided on the base plate 5. 2 along the direction of arrangement. Also, on the base plate 5, cushion materials 7 are provided along the arrangement direction of the keys 2 so that the lower surfaces of the rear end portions (left end portions in FIG. 2) of the plurality of keys 2 come into contact with each other. It has been. Further, guide pins 8a and 8b are provided on the base plate 5 so as to stand upright to prevent the plurality of keys 2 from swinging in the arrangement direction.
アクション機構3は、図1および図2に示すように、複数の鍵2それぞれの押鍵操作に応じてそれぞれ上下方向に回転動作する複数の伝達部材10と、これら複数の伝達部材10の各回転動作に応じてそれぞれ上下方向に回転動作して複数の鍵2それぞれにアクション荷重を付与する複数のハンマー部材11と、を備えている。
As shown in FIGS. 1 and 2, the action mechanism 3 includes a plurality of transmission members 10 that rotate in the vertical direction in response to a key pressing operation of each of the plurality of keys 2, and each rotation of the plurality of transmission members 10. A plurality of hammer members 11 that respectively rotate in the vertical direction according to the operation and apply an action load to each of the plurality of keys 2.
また、このアクション機構3は、図2に示すように、複数の伝達部材10をそれぞれ回転自在に保持する複数の伝達保持部13が鍵2の配列方向に沿って一体に形成された伝達保持部材12と、複数のハンマー部材11をそれぞれ回転自在に保持する複数のハンマー保持部15が鍵2の配列方向に沿って一体に形成されたハンマー保持部材14と、を備えている。
In addition, as shown in FIG. 2, the action mechanism 3 includes a transmission holding member in which a plurality of transmission holding portions 13 that hold the plurality of transmission members 10 in a rotatable manner are integrally formed along the arrangement direction of the keys 2. 12 and a hammer holding member 14 in which a plurality of hammer holding portions 15 that hold the plurality of hammer members 11 rotatably are integrally formed along the arrangement direction of the keys 2.
この場合、伝達保持部材12は、図2および図3に示すように、鍵2の配列方向に沿って配置された伝達支持レール17上に取り付けられている。また、ハンマー保持部材14は、鍵2の配列方向に沿って配置されたハンマー支持レール18上に取り付けられている。これら伝達支持レール17およびハンマー支持レール18は、複数の支持部材20に支持されて、複数の鍵2の上方に配置されている。
In this case, the transmission holding member 12 is mounted on a transmission support rail 17 arranged along the arrangement direction of the keys 2 as shown in FIGS. 2 and 3. The hammer holding member 14 is mounted on a hammer support rail 18 arranged along the arrangement direction of the keys 2. The transmission support rail 17 and the hammer support rail 18 are supported by a plurality of support members 20 and are disposed above the plurality of keys 2.
複数の支持部材20は、図1〜図3に示すように、鍵2の配列方向の全長における予め定められた複数個所にそれぞれ位置した状態で、ベース板5上に起立して取り付けられている。この場合、複数の鍵2は全体で例えば88個配列されている。これに応じて、複数の支持部材20は、複数の鍵2の配列方向における両端部と、例えば20個の鍵2ごとに位置する3箇所の各鍵2間と、の個所に配置されている。すなわち、この実施形態では、支持部材20が鍵2の配列方向の全長における5箇所に配置されている。
As shown in FIGS. 1 to 3, the plurality of support members 20 are erected and mounted on the base plate 5 in a state where the plurality of support members 20 are located at a plurality of predetermined positions in the entire length in the arrangement direction of the keys 2. . In this case, for example, a total of 88 keys 2 are arranged. In response to this, the plurality of support members 20 are arranged at both ends in the arrangement direction of the plurality of keys 2 and between, for example, the three keys 2 positioned for each of the 20 keys 2. . In other words, in this embodiment, the support members 20 are arranged at five positions in the entire length in the arrangement direction of the keys 2.
この支持部材20は、ABS樹脂などの硬質の合成樹脂からなり、図3および図4に示すように、ベース板5上に取り付けられる取付部20aと、この取付部20a上に一体に形成されたブリッジ部20bと、を有している。これにより、支持部材20は、取付部20aがベース板5上に取り付けられることにより、ブリッジ部20bが鍵2の上方に突出した状態で、複数の鍵2の後部間に配置されるように構成されている。
The support member 20 is made of a hard synthetic resin such as ABS resin, and as shown in FIGS. 3 and 4, is integrally formed on the attachment portion 20a and the attachment portion 20a attached on the base plate 5. And a bridge portion 20b. Accordingly, the support member 20 is configured to be disposed between the rear portions of the plurality of keys 2 in a state where the bridge portion 20b protrudes above the key 2 by attaching the attachment portion 20a on the base plate 5. Has been.
この場合、ブリッジ部20bの後端下部、つまり取付部20aの後側上部(図3では左側上部)には、図3および図4に示すように、伝達支持レール17を支持する後側レール支持部20cが設けられている。また、ブリッジ部20bの前側上部(図3では右側上部)には、ハンマー支持レール18を支持する前側レール支持部20dが設けられている。さらに、ブリッジ部20bの後側上部(図3では左側上部)には、ストッパレール支持部20eが設けられており、ブリッジ部20bの上部には、基板レール支持部20fが設けられている。
In this case, a rear rail support for supporting the transmission support rail 17 is provided on the rear end lower portion of the bridge portion 20b, that is, on the rear upper portion (left upper portion in FIG. 3), as shown in FIGS. A portion 20c is provided. In addition, a front rail support portion 20d that supports the hammer support rail 18 is provided at the front upper portion (the upper right portion in FIG. 3) of the bridge portion 20b. Furthermore, a stopper rail support portion 20e is provided on the rear upper portion (left upper portion in FIG. 3) of the bridge portion 20b, and a substrate rail support portion 20f is provided on the upper portion of the bridge portion 20b.
伝達支持レール17は、図2および図3に示すように、断面が矩形状の角筒状に形成され、複数の鍵2の配列方向の全長に亘る長さに形成されている。この伝達支持レール17は、鍵2の配列方向における所定箇所が複数の支持部材20の各後側レール支持部20c上に取り付けられるように構成されている。
As shown in FIGS. 2 and 3, the transmission support rail 17 is formed in a rectangular tube shape having a rectangular cross section, and has a length extending over the entire length in the arrangement direction of the plurality of keys 2. The transmission support rail 17 is configured such that a predetermined portion in the arrangement direction of the keys 2 is attached on each rear rail support portion 20 c of the plurality of support members 20.
この伝達支持レール17上には、図2および図3に示すように、複数の伝達保持部材12および複数のストッパ支持部21が鍵2の配列方向に沿って取り付けられている。この場合、複数のストッパ支持部21は、金属板からなり、複数の支持部材10に対応する伝達支持レール17上の5箇所に、図3に示すように、複数の伝達保持部材12の上方に突出した状態で取り付けられている。
As shown in FIGS. 2 and 3, a plurality of transmission holding members 12 and a plurality of stopper support portions 21 are attached on the transmission support rail 17 along the arrangement direction of the keys 2. In this case, the plurality of stopper support portions 21 are made of metal plates, and are provided at five locations on the transmission support rails 17 corresponding to the plurality of support members 10 and above the plurality of transmission holding members 12 as shown in FIG. It is attached in a protruding state.
伝達保持部材12は、ABS樹脂などの硬質の合成樹脂からなり、図5(a)および図5(b)に示すように、本体板12a上の後端部(図3では左端部)に複数の伝達保持部13が例えば10個程度の各鍵2に対した状態で鍵2の配列方向に沿って一体に形成されている。これら複数の伝達保持部13それぞれは、伝達部材10が回転自在に取り付けられた状態で、伝達部材10の横触れを防ぐ軸支持部22と、梱包輸送時に伝達部材10の横触れを規制する規制部23と、を有している。
The transmission holding member 12 is made of a hard synthetic resin such as ABS resin, and a plurality of transmission holding members 12 are provided at the rear end portion (left end portion in FIG. 3) on the main body plate 12a as shown in FIGS. 5 (a) and 5 (b). The transmission holding portion 13 is integrally formed along the arrangement direction of the keys 2 in a state where, for example, about 10 keys 2 are provided. Each of the plurality of transmission holding portions 13 includes a shaft support portion 22 that prevents the transmission member 10 from being laterally touched in a state in which the transmission member 10 is rotatably attached, and a regulation that restricts the lateral contact of the transmission member 10 during packaging transportation. Part 23.
この場合、軸支持部22は、図3および図5に示すように、伝達保持部材12の本体板12a上の後端部(図3では左端部)に各鍵2と対応してそれぞれ形成された一対のガイド壁22aを有している。これら一対のガイド壁22aは、伝達部材10の後述する伝達嵌合部26を両側から摺動可能に挟んだ状態で、伝達部材10の伝達嵌合部26を回転可能にガイドするガイド部を構成している。
In this case, as shown in FIGS. 3 and 5, the shaft support portion 22 is formed at the rear end portion (the left end portion in FIG. 3) on the main body plate 12 a of the transmission holding member 12 corresponding to each key 2. A pair of guide walls 22a. The pair of guide walls 22a constitute a guide portion that rotatably guides the transmission fitting portion 26 of the transmission member 10 with a transmission fitting portion 26 described later of the transmission member 10 slidably sandwiched from both sides. doing.
また、これら一対のガイド壁22aには、図5(a)および図5(b)に示すように、伝達部材10を回転可能に保持する伝達保持軸24が挿入する伝達軸挿入部22bが互いに対応して設けられている。すなわち、この伝達軸挿入部22bは、円形状の孔であり、複数の伝達保持部13の各軸支持部22における各一対のガイド壁22aそれぞれに同一軸上に対応して設けられている。
Further, as shown in FIGS. 5A and 5B, a transmission shaft insertion portion 22b into which the transmission holding shaft 24 that rotatably holds the transmission member 10 is inserted into the pair of guide walls 22a. Correspondingly provided. That is, the transmission shaft insertion portion 22b is a circular hole, and is provided on the same axis in each of the pair of guide walls 22a in each shaft support portion 22 of the plurality of transmission holding portions 13.
伝達保持軸24は、図5(a)および図5(b)に示すように、アルミニウムやステンレスなどの金属製のパイプであり、その外径が伝達軸挿入部22bの内径とほぼ同じ大きさに形成されている。この伝達保持軸24は、その軸方向の長さが、鍵配列方向における伝達保持部材12の全長と同じ長さに形成されている。
As shown in FIGS. 5A and 5B, the transmission holding shaft 24 is a pipe made of metal such as aluminum or stainless steel, and the outer diameter thereof is substantially the same as the inner diameter of the transmission shaft insertion portion 22b. Is formed. The transmission holding shaft 24 has an axial length that is the same as the entire length of the transmission holding member 12 in the key arrangement direction.
これにより、伝達保持軸24は、図5(a)および図5(b)に示すように、その一端部が伝達保持部材12の一方の端部側から複数の伝達保持部13の各軸支持部22それぞれに設けられた複数の伝達軸挿入部22bに順次挿入されて、伝達保持部材12の他方の端部に位置する軸支持部22の伝達軸挿入部22bに挿入されるように構成されている。
Thereby, as shown in FIGS. 5A and 5B, the transmission holding shaft 24 is supported at each end of the plurality of transmission holding portions 13 from one end side of the transmission holding member 12. It is configured to be sequentially inserted into a plurality of transmission shaft insertion portions 22b provided in each of the portions 22, and to be inserted into the transmission shaft insertion portion 22b of the shaft support portion 22 located at the other end of the transmission holding member 12. ing.
これにより、伝達保持軸24は、図5(a)に示すように、鍵配列方向における伝達保持部材12の全長に亘って取り付けられるように構成されている。この場合、鍵2の配列方向における伝達保持部材12の両端部には、伝達保持軸24が伝達保持部材12から抜け出すのを防ぐための蓋部(図示せず)が取り付けられている。
Thereby, the transmission holding shaft 24 is configured to be attached over the entire length of the transmission holding member 12 in the key arrangement direction, as shown in FIG. In this case, lids (not shown) for preventing the transmission holding shaft 24 from coming out of the transmission holding member 12 are attached to both ends of the transmission holding member 12 in the arrangement direction of the keys 2.
また、伝達保持部13の規制部23は、図3および図5に示すように、伝達保持部材12の本体板12aの前部(図3では右側部)上に各伝達部材10と対応して形成された一対の規制壁である。この規制部23は、図5(a)に示すように、伝達部材10の後側下部を挟んだ状態で、伝達部材10を回転可能にガイドするほか、梱包輸送時に伝達部材10の横振れを規制するように構成されている。
Further, as shown in FIGS. 3 and 5, the restricting portion 23 of the transmission holding portion 13 corresponds to each transmission member 10 on the front portion (right side portion in FIG. 3) of the main body plate 12 a of the transmission holding member 12. It is a pair of regulation walls formed. As shown in FIG. 5A, the restricting portion 23 guides the transmission member 10 in a state where the rear lower portion of the transmission member 10 is sandwiched, and also causes the transmission member 10 to shake laterally during package transportation. It is configured to regulate.
伝達部材10は、ABS樹脂などの硬質の合成樹脂からなり、図2および図6に示すように、鍵2の押鍵操作に応じて上下方向に回転してハンマー部材11を上下方向に回転させる伝達本体部25と、この伝達本体部25に一体に形成されて、伝達保持部材12に取り付けられた伝達保持軸24に回転自在に取り付けられる伝達嵌合部26と、を有している。
The transmission member 10 is made of a hard synthetic resin such as ABS resin, and rotates the hammer member 11 in the vertical direction by rotating in the vertical direction in response to the key pressing operation of the key 2 as shown in FIGS. The transmission main body 25 includes a transmission fitting portion 26 that is integrally formed with the transmission main body 25 and is rotatably attached to a transmission holding shaft 24 that is attached to the transmission holding member 12.
伝達本体部25は、図6(a)および図6(b)に示すように、ワッフル形状に形成されている。すなわち、この伝達本体部25は、厚みの薄い縦板部25aと、この縦板部25aの外周部および両側面に格子状に形成された複数のリブ部25bと、を有し、これらがワッフル形状に形成されている。
As shown in FIGS. 6A and 6B, the transmission main body 25 is formed in a waffle shape. That is, the transmission main body portion 25 includes a thin vertical plate portion 25a and a plurality of rib portions 25b formed in a lattice shape on the outer peripheral portion and both side surfaces of the vertical plate portion 25a. It is formed into a shape.
この伝達本体部25は、図6(a)および図6(b)に示すように、縦板部25aの形状および複数のリブ部25bの形成密度によって、伝達部材10の重量を調整するように構成されている。また、この伝達本体部25は、縦板部25aの厚みを薄く形成しても、複数のリブ部25bによって強度が確保されると共に、成形時に縦板部25aにヒケの発生を防ぐように構成されている。
As shown in FIG. 6A and FIG. 6B, the transmission main body 25 adjusts the weight of the transmission member 10 according to the shape of the vertical plate portion 25a and the formation density of the plurality of rib portions 25b. It is configured. Further, the transmission main body 25 is configured so that the strength is secured by the plurality of rib portions 25b and the occurrence of sink marks in the vertical plate portion 25a during molding, even if the vertical plate portion 25a is formed thin. Has been.
伝達嵌合部26は、図6および図7に示すように、全体がほぼ半円形状に形成され、伝達本体部25の後端部に連結首部26aを介して後方に突出して形成されている。すなわち、この伝達嵌合部26は、図5(a)に示すように、鍵2の配列方向の厚みが伝達保持部13の軸支持部22の一対のガイド壁22a間とほぼ同じ長さに形成されて、一対のガイド壁22a間に摺動可能に挿入されるように構成されている。
As shown in FIGS. 6 and 7, the transmission fitting portion 26 is formed in a substantially semicircular shape as a whole, and is formed to protrude rearward from the rear end portion of the transmission main body portion 25 via a connecting neck portion 26 a. . That is, as shown in FIG. 5A, the transmission fitting portion 26 has a thickness in the arrangement direction of the keys 2 that is substantially the same as that between the pair of guide walls 22 a of the shaft support portion 22 of the transmission holding portion 13. It is formed and is configured to be slidably inserted between the pair of guide walls 22a.
また、この伝達嵌合部26の中心部には、図6および図7に示すように、伝達保持部材12に取り付けられる伝達保持軸24が挿入する伝達嵌合孔26bが円形状に形成されている。この伝達嵌合孔26bは、その内径が伝達保持軸24の外形とほぼ同じ大きさに形成されている。
Further, as shown in FIGS. 6 and 7, a transmission fitting hole 26b into which the transmission holding shaft 24 attached to the transmission holding member 12 is inserted is formed in a circular shape at the center of the transmission fitting portion 26. Yes. The transmission fitting hole 26 b has an inner diameter that is substantially the same as the outer shape of the transmission holding shaft 24.
これにより、伝達嵌合部26は、図6および図7に示すように、伝達保持部13の軸支持部22の一対のガイド壁22a間に配置された状態で、一対のガイド壁22aに設けられた伝達挿入部22bに伝達保持軸24を挿入する際に、その伝達保持軸24が伝達嵌合孔26bに挿入することにより、伝達保持軸24に回転可能に取り付けられるように構成されている。
Thereby, the transmission fitting part 26 is provided in a pair of guide walls 22a in the state arrange | positioned between the pair of guide walls 22a of the shaft support part 22 of the transmission holding part 13, as shown in FIG.6 and FIG.7. When the transmission holding shaft 24 is inserted into the transmission insertion portion 22b, the transmission holding shaft 24 is configured to be rotatably attached to the transmission holding shaft 24 by inserting the transmission holding shaft 24 into the transmission fitting hole 26b. .
また、この伝達嵌合部26は、図5(a)および図6(b)に示すように、その厚み方向における中間部にスリット溝26cが、伝達保持軸24の軸方向と直交する方向、つまり伝達部材10の長手方向に沿って形成された構成になっている。これにより、伝達嵌合部26は、その厚み方向である伝達保持軸24の軸方向に弾性変形するように構成されている。これにより、伝達嵌合部26は、一対のガイド壁22a間に挿入された際に、スリット溝26cによって一対のガイド壁22aの各対向面に摺動可能に弾接するように構成されている。
Further, as shown in FIGS. 5A and 6B, the transmission fitting portion 26 has a slit groove 26c in the middle portion in the thickness direction thereof, a direction perpendicular to the axial direction of the transmission holding shaft 24, That is, it is configured along the longitudinal direction of the transmission member 10. Thereby, the transmission fitting part 26 is comprised so that it may elastically deform in the axial direction of the transmission holding shaft 24 which is the thickness direction. Thereby, when the transmission fitting part 26 is inserted between a pair of guide walls 22a, it is comprised so that it may slidably contact to each opposing surface of a pair of guide wall 22a by the slit groove | channel 26c.
ところで、伝達部材10の伝達本体部25における後側下部には、図6(a)および図6(b)に示すように、伝達保持部材12の規制部23に規制される肉厚の薄い係合部27が設けられている。この係合部27は、伝達本体部25の後側下部の両側面を切り欠くことにより、その厚みが規制部23の一対の規制壁間とほぼ同じ長さに形成されている。これにより、係合部27は、規制部23の一対の規制壁間に挿入されることにより、伝達部材10を回転可能にガイドするほか、梱包輸送時に伝達部材10の横振れを規制するように構成されている。
By the way, on the rear lower part of the transmission main body 25 of the transmission member 10, as shown in FIGS. 6A and 6B, a thin wall that is regulated by the regulation part 23 of the transmission holding member 12 is used. A joint portion 27 is provided. The engaging portion 27 is formed to have a thickness substantially the same as that between the pair of restricting walls of the restricting portion 23 by notching both side surfaces of the rear lower portion of the transmission main body portion 25. Thereby, the engaging part 27 is inserted between the pair of restricting walls of the restricting part 23 so as to guide the transmission member 10 to be rotatable, and to restrict the lateral deflection of the transmitting member 10 during packaging transportation. It is configured.
また、この伝達部材10の伝達本体部25は、図2および図7に示すように、その下部が鍵2の上面に向けて突出して形成されている。この伝達本体部25の下端部には、第1伝達フェルト28が設けられている。この第1伝達フェルト28は、鍵2の後側上部に設けられたキャプスタン29が下側から当接するように構成されている。これにより、伝達部材10は、鍵2が押鍵された際に、第1伝達フェルト28に下側から当接する鍵2のキャプスタン29によって押し上げられて、伝達保持軸24を中心に反時計回りに回転するように構成されている。
Further, as shown in FIGS. 2 and 7, the transmission main body 25 of the transmission member 10 is formed such that a lower portion thereof protrudes toward the upper surface of the key 2. A first transmission felt 28 is provided at the lower end of the transmission main body 25. The first transmission felt 28 is configured such that a capstan 29 provided on the upper rear side of the key 2 abuts from below. As a result, when the key 2 is depressed, the transmission member 10 is pushed up by the capstan 29 of the key 2 that contacts the first transmission felt 28 from below, and rotates counterclockwise about the transmission holding shaft 24. It is comprised so that it may rotate.
さらに、伝達部材10の伝達本体部25は、図2および図7に示すように、その前端上部が後端上部よりも高く形成されている。これにより、伝達本体部25は、その上辺部が後部下がりに傾斜するように形成されている。この伝達本体部25の前端上部には、第2伝達フェルト30が設けられている。
Furthermore, as shown in FIGS. 2 and 7, the transmission main body portion 25 of the transmission member 10 has a front end upper portion formed higher than a rear end upper portion. Thereby, the transmission main-body part 25 is formed so that the upper side part may incline in the rear part fall. A second transmission felt 30 is provided on the upper front end of the transmission main body 25.
この第2伝達フェルト30は、図2に示すように、ハンマー部材11の後述するハンマー突起部31が上方から当接するように構成されている。これにより、伝達部材10は、鍵2が押鍵されて伝達保持軸24を中心に反時計回りに回転した際に、ハンマー部材11のハンマー突起部31を押し上げてハンマー部材11を時計回りに回転させるように構成されている。
As shown in FIG. 2, the second transmission felt 30 is configured such that a hammer protrusion 31 (described later) of the hammer member 11 abuts from above. Thereby, when the key 2 is depressed and the transmission member 10 rotates counterclockwise around the transmission holding shaft 24, the transmission member 10 pushes up the hammer protrusion 31 of the hammer member 11 and rotates the hammer member 11 clockwise. It is configured to let you.
一方、ハンマー支持レール18は、図1〜図3に示すように、伝達支持レール17と同様、断面が矩形状の角筒状に形成され、複数の鍵2の配列方向の全長に亘る長さに形成されている。このハンマー支持レール18は、鍵2の配列方向における所定箇所が複数の支持部材20の各前側レール支持部20d上に取り付けられるように構成されている。このハンマー支持レール18上には、複数のハンマー保持部材14が鍵2の配列方向に沿って取り付けられている。
On the other hand, as shown in FIGS. 1 to 3, the hammer support rail 18 is formed in a rectangular tube shape having a rectangular cross section, like the transmission support rail 17, and has a length over the entire length in the arrangement direction of the plurality of keys 2. Is formed. The hammer support rail 18 is configured such that a predetermined portion in the arrangement direction of the keys 2 is attached on each front rail support portion 20 d of the plurality of support members 20. On the hammer support rail 18, a plurality of hammer holding members 14 are attached along the arrangement direction of the keys 2.
ハンマー保持部材14は、ABS樹脂などの硬質の合成樹脂からなり、図8(a)および図8(b)に示すように、上方が開放されたレール状の本体板14aの後端部に複数のハンマー保持部15が例えば10個程度の各鍵2に対した状態で鍵2の配列方向に沿って一体に形成されている。このハンマー保持部15は、ハンマー部材11が回転自在に取り付けられた状態で、ハンマー部材11の横振れを防ぐ軸支持部32を有している。
The hammer holding member 14 is made of a hard synthetic resin such as ABS resin, and as shown in FIGS. 8A and 8B, a plurality of hammer holding members 14 are provided at the rear end portion of the rail-shaped main body plate 14a opened upward. The hammer holding portions 15 are integrally formed along the arrangement direction of the keys 2 in a state where, for example, about 10 keys 2 are held. The hammer holding portion 15 has a shaft support portion 32 that prevents lateral vibration of the hammer member 11 in a state where the hammer member 11 is rotatably attached.
この場合、軸支持部32は、図8(a)および図8(b)に示すように、ハンマー保持部材14の本体板14a上の後端部(図8(a)では左端部)に各伝達部材10と対応して形成された一対のガイド壁32aを有している。一対のガイド壁32aは、ハンマー部材11の後述するハンマー嵌合部37を両側から摺動可能に挟んだ状態で、ハンマー部材11のハンマー嵌合部37を回転可能にガイドするガイド部を構成している。
In this case, as shown in FIGS. 8 (a) and 8 (b), the shaft support portion 32 is provided at the rear end portion (the left end portion in FIG. 8 (a)) of the hammer holding member 14 on the main body plate 14a. It has a pair of guide walls 32 a formed corresponding to the transmission member 10. The pair of guide walls 32a constitutes a guide portion that rotatably guides the hammer fitting portion 37 of the hammer member 11 in a state where a hammer fitting portion 37 (to be described later) of the hammer member 11 is slidably sandwiched from both sides. ing.
また、これら一対の一対のガイド壁32aには、図8(a)および図8(b)に示すように、ハンマー部材11を回転可能に保持するハンマー保持軸34が挿入するハンマー軸挿入部32bが互いに対応して設けられている。すなわち、このハンマー軸挿入部32bは、円形状の孔であり、複数のハンマー保持部15の各軸支持部32における各一対のガイド壁32aそれぞれに同一軸上に対応して設けられている。
Further, as shown in FIGS. 8A and 8B, a hammer shaft insertion portion 32b into which a hammer holding shaft 34 that rotatably holds the hammer member 11 is inserted into the pair of guide walls 32a. Are provided corresponding to each other. That is, the hammer shaft insertion portion 32b is a circular hole and is provided on the same axis on each of the pair of guide walls 32a in each shaft support portion 32 of the plurality of hammer holding portions 15.
ハンマー保持軸34は、図8(a)および図8(b)に示すように、伝達保持軸24と同様、アルミニウムやステンレスなどの金属製のパイプであり、その外径がハンマー軸挿入部32bの内径とほぼ同じ大きさに形成されている。このハンマー保持軸34は、その軸方向の長さが、鍵配列方向におけるハンマー保持部材14の全長と同じ長さに形成されている。
As shown in FIGS. 8A and 8B, the hammer holding shaft 34 is a metal pipe such as aluminum or stainless steel, like the transmission holding shaft 24, and has an outer diameter of the hammer shaft insertion portion 32b. It is formed to be approximately the same size as the inner diameter. The hammer holding shaft 34 has an axial length that is the same as the entire length of the hammer holding member 14 in the key arrangement direction.
これにより、ハンマー保持軸34は、図8(a)および図8(b)に示すように、その一端部がハンマー保持部材14の一方の端部側から複数のハンマー保持部15の各軸支持部32それぞれに設けられた複数のハンマー軸挿入部32bに順次挿入されて、ハンマー保持部材13の他方の端部に位置する軸支持部32のハンマー軸挿入部32bに挿入されるように構成されている。
Thereby, as shown in FIGS. 8A and 8B, the hammer holding shaft 34 is supported at each end of each of the plurality of hammer holding portions 15 from one end side of the hammer holding member 14. It is configured to be sequentially inserted into a plurality of hammer shaft insertion portions 32b provided in each of the portions 32 and to be inserted into the hammer shaft insertion portion 32b of the shaft support portion 32 located at the other end of the hammer holding member 13. ing.
これにより、ハンマー保持軸34は、図8(a)に示すように、ハンマー保持部材14における鍵2の配列方向の全長に亘って取り付けられるように構成されている。この場合、鍵2の配列方向におけるハンマー保持部材14の両端部には、ハンマー保持軸34がハンマー保持部材14から抜け出すのを防ぐための蓋部(図示せず)が取り付けられている。
Thereby, as shown in FIG. 8A, the hammer holding shaft 34 is configured to be attached over the entire length of the hammer holding member 14 in the arrangement direction of the keys 2. In this case, lids (not shown) for preventing the hammer holding shaft 34 from coming out of the hammer holding member 14 are attached to both ends of the hammer holding member 14 in the arrangement direction of the keys 2.
ハンマー部材11は、ABS樹脂などの硬質の合成樹脂からなり、図8および図9に示すように、ハンマー部35とハンマーアーム36とを有し、これらが一体に形成された構成になっている。ハンマー部35は、杓形状の縦板部35aを有し、その外周部およびその両側面にリブ部35bが形成された構成になっている。ハンマーアーム36は、前後方向の長さが伝達部材10とほぼ同じ長さの横板部36aを有し、その外周部および両側面にリブ部36bが形成された構成になっている。
The hammer member 11 is made of a hard synthetic resin such as ABS resin, and has a hammer portion 35 and a hammer arm 36 as shown in FIGS. 8 and 9, and these are integrally formed. . The hammer portion 35 has a bowl-shaped vertical plate portion 35a, and has a configuration in which rib portions 35b are formed on the outer peripheral portion and both side surfaces thereof. The hammer arm 36 has a lateral plate portion 36a whose length in the front-rear direction is substantially the same as that of the transmission member 10, and has a configuration in which rib portions 36b are formed on the outer peripheral portion and both side surfaces thereof.
このハンマーアーム36の前端部(図9では右端部)には、図8および図9に示すように、ハンマー保持部材14の軸支持部32に回転自在に取り付けられるハンマー嵌合部37が形成されている。このハンマー嵌合部37は、伝達嵌合部26と同様、全体がほぼ半円形状に形成され、ハンマーアーム36の前端部に連結首部37aを介して前方に突出して形成されている。すなわち、このハンマー嵌合部37は、鍵2の配列方向の厚みが軸支持部32の一対のガイド壁32a間とほぼ同じ長さに形成されて、一対のガイド壁32a間に摺動可能に挿入されるように構成されている。
A hammer fitting portion 37 that is rotatably attached to the shaft support portion 32 of the hammer holding member 14 is formed at the front end portion (right end portion in FIG. 9) of the hammer arm 36, as shown in FIGS. ing. The hammer fitting portion 37 is formed in a substantially semicircular shape as in the case of the transmission fitting portion 26, and is formed to project forward from the front end portion of the hammer arm 36 via a connecting neck portion 37 a. That is, the hammer fitting portion 37 is formed so that the thickness in the arrangement direction of the keys 2 is substantially the same as that between the pair of guide walls 32a of the shaft support portion 32, and is slidable between the pair of guide walls 32a. It is configured to be inserted.
また、このハンマー嵌合部37の中心には、図8〜図10に示すように、ハンマー保持部15に取り付けられるハンマー保持軸34が挿入するハンマー嵌合孔37bが円形状に形成されている。このハンマー嵌合孔37bは、その内径が伝達保持軸24の外形とほぼ同じ大きさに形成されている。
Further, as shown in FIGS. 8 to 10, a hammer fitting hole 37 b into which the hammer holding shaft 34 attached to the hammer holding portion 15 is inserted is formed in a circular shape at the center of the hammer fitting portion 37. . The hammer fitting hole 37 b has an inner diameter that is substantially the same as the outer shape of the transmission holding shaft 24.
これにより、ハンマー嵌合部37は、図8〜図10に示すように、ハンマー保持部15の軸支持部32における一対のガイド壁32a間に配置された状態で、一対のガイド壁32aに設けられたハンマー軸挿入部52にハンマー保持軸34を挿入する際に、そのハンマー保持軸34がハンマー嵌合孔37bに挿入することにより、ハンマー保持軸34に回転可能に取り付けられるように構成されている。
Thereby, the hammer fitting part 37 is provided in a pair of guide wall 32a in the state arrange | positioned between the pair of guide walls 32a in the shaft support part 32 of the hammer holding part 15, as shown in FIGS. When the hammer holding shaft 34 is inserted into the hammer shaft insertion portion 52, the hammer holding shaft 34 is inserted into the hammer fitting hole 37b so that the hammer holding shaft 34 is rotatably attached to the hammer holding shaft 34. Yes.
また、このハンマー嵌合部37は、図8(a)に示すように、その厚み方向における中間部にスリット溝37cが、ハンマー保持軸34の軸方向と直交する方向、つまりハンマー部材11の長手方向に沿って形成された構成になっている。これにより、ハンマー嵌合部37は、その厚み方向であるハンマー保持軸34の軸方向に弾性変形するように構成されている。これにより、ハンマー嵌合部37は、一対のガイド壁32a間に挿入された際に、スリット溝37cによって一対のガイド壁32aの各対向面に摺動可能に弾接するように構成されている。
Further, as shown in FIG. 8A, the hammer fitting portion 37 has a slit groove 37c in the middle portion in the thickness direction in a direction perpendicular to the axial direction of the hammer holding shaft 34, that is, the longitudinal direction of the hammer member 11. It is the structure formed along the direction. Thereby, the hammer fitting part 37 is comprised so that it may elastically deform in the axial direction of the hammer holding shaft 34 which is the thickness direction. Thereby, when the hammer fitting part 37 is inserted between a pair of guide walls 32a, it is comprised so that it may slidably contact to each opposing surface of a pair of guide wall 32a by the slit groove | channel 37c.
さらに、ハンマーアーム36の前端下部には、図9および図10に示すように、伝達部材10の伝達本体部25の前端上部に設けられた第2伝達フェルト30に上方から当接するハンマー突起部31が設けられている。これにより、ハンマー部材11は、伝達部材10が反時計回りに回転すると、その回転に応じてハンマー突起部31が押し上げられることにより、ハンマー保持部15のハンマー保持軸34を中心に時計回りに回転するように構成されている。
Further, as shown in FIGS. 9 and 10, a hammer protrusion 31 that abuts from above on the second transmission felt 30 provided at the upper front end of the transmission main body 25 of the transmission member 10, at the lower front end of the hammer arm 36. Is provided. Thereby, when the transmission member 10 rotates counterclockwise, the hammer member 11 is rotated clockwise around the hammer holding shaft 34 of the hammer holding portion 15 by pushing up the hammer protrusion 31 according to the rotation. Is configured to do.
また、このハンマーアーム36は、図2および図10に示すように、その後端下部が下限ストッパ38に上方から当接することにより、初期位置である下限位置に規制されるように構成されている。すなわち、この下限ストッパ38は、伝達支持レール17上に設けられた複数のストッパ支持部21に支持された下限ストッパレール39上に取り付けられている。この場合、複数のストッパ支持部21は、図10に示すように、その各上部が後部下がりに傾斜して形成されている。
Further, as shown in FIGS. 2 and 10, the hammer arm 36 is configured to be regulated to the lower limit position, which is the initial position, when the lower end of the hammer arm 36 comes into contact with the lower limit stopper 38 from above. That is, the lower limit stopper 38 is attached on a lower limit stopper rail 39 supported by a plurality of stopper support portions 21 provided on the transmission support rail 17. In this case, as shown in FIG. 10, each of the plurality of stopper support portions 21 is formed such that each upper portion thereof is inclined downward to the rear.
下限ストッパレール39は、図2および図10に示すように、下側に開放されたレール状に形成され、鍵2の配列方向の全長に亘る長さに形成されている。この下限ストッパレール39は、複数のストッパ支持部21の各上部に後部下りに傾斜した状態で取り付けられている。このため、下限ストッパ38は、下限ストッパレール39上に後部下がりに傾斜した状態で設けられている。これにより、ハンマー部材10は、ハンマーアーム36の後端下部が下限ストッパ38に上方から当接することにより、後部下がりに傾斜した状態で、初期位置に位置規制されるように構成されている。
As shown in FIGS. 2 and 10, the lower limit stopper rail 39 is formed in a rail shape opened to the lower side, and has a length extending over the entire length in the arrangement direction of the keys 2. The lower limit stopper rail 39 is attached to each upper portion of the plurality of stopper support portions 21 in a state of being inclined rearward and downward. For this reason, the lower limit stopper 38 is provided on the lower limit stopper rail 39 in a state where it is inclined rearwardly downward. As a result, the hammer member 10 is configured to be regulated at the initial position in a state where the lower end of the rear end of the hammer arm 36 abuts the lower limit stopper 38 from above to incline rearwardly downward.
また、このハンマーアーム36は、図2および図10に示すように、その後端上部が上限ストッパ40に下方から当接することにより、上限位置が規制されるように構成されている。すなわち、この上限ストッパ40は、複数の支持部材20の各ストッパレール支持部20eに取り付けられた上限ストッパレール41の下面に取り付けられている。
Further, as shown in FIGS. 2 and 10, the hammer arm 36 is configured such that the upper end position thereof is regulated when the upper end of the hammer arm 36 contacts the upper limit stopper 40 from below. That is, the upper limit stopper 40 is attached to the lower surface of the upper limit stopper rail 41 attached to each stopper rail support portion 20e of the plurality of support members 20.
この場合、上限ストッパレール41は、図2および図10に示すように、断面がほぼL字形状に形成された長板であり、鍵2の配列方向の全長に亘る長さに形成されている。この上限ストッパレール41は、その水平部が複数の支持部材20の各ストッパレール支持部20eから後方に突出した状態で、垂直部が各ストッパレール支持部20eにビス41aによって取り付けられている。
In this case, as shown in FIG. 2 and FIG. 10, the upper limit stopper rail 41 is a long plate having a substantially L-shaped cross section, and is formed to have a length over the entire length in the arrangement direction of the keys 2. . The upper limit stopper rail 41 has a horizontal portion protruding rearward from each stopper rail support portion 20e of the plurality of support members 20, and a vertical portion is attached to each stopper rail support portion 20e by screws 41a.
上限ストッパ40は、図2および図10に示すように、上限ストッパレール41の水平部の下面に設けられている。これにより、ハンマー部材10は、ハンマーアーム36がハンマー保持部15のハンマー保持軸34を中心に時計回りに回転した際に、ハンマーアーム36の後端上部が上限ストッパ40に下方から当接することにより、上限位置が規制されるように構成されている。
The upper limit stopper 40 is provided on the lower surface of the horizontal portion of the upper limit stopper rail 41 as shown in FIGS. Thereby, when the hammer arm 36 rotates clockwise around the hammer holding shaft 34 of the hammer holding portion 15, the upper end of the hammer arm 36 comes into contact with the upper limit stopper 40 from below. The upper limit position is restricted.
さらに、ハンマーアーム36の前端上部には、図2および図10に示すように、スイッチ押圧部42が形成されている。このハンマーアーム36のスイッチ押圧部42に対応する上方には、スイッチ基板43が一対の基板支持レール44によって配置されている。これら一対の基板支持レール44は、それぞれ断面がL字形状に形成された長板であり、鍵2の配列方向の全長に亘る長さに形成されている。
Further, as shown in FIGS. 2 and 10, a switch pressing portion 42 is formed at the upper front end of the hammer arm 36. A switch substrate 43 is disposed by a pair of substrate support rails 44 above the hammer arm 36 corresponding to the switch pressing portion 42. Each of the pair of board support rails 44 is a long plate having an L-shaped cross section, and is formed to have a length extending over the entire length in the arrangement direction of the keys 2.
これら一対の基板支持レール44は、図2および図10に示すように、その各水平部が複数の支持部材20の各基板レール支持部20f上に所定間隔離れた状態で取り付けられている。スイッチ基板43は、図1に示すように、複数に分割されている。すなわち、この実施形態では、スイッチ基板43が例えば4つに分割されて20個程度の各鍵2に対応する長さで、一対の基板支持レール44上に取り付けられている。
As shown in FIGS. 2 and 10, the pair of substrate support rails 44 are attached with their horizontal portions spaced apart from each other on the substrate rail support portions 20 f of the plurality of support members 20 by a predetermined distance. As shown in FIG. 1, the switch board 43 is divided into a plurality of parts. In other words, in this embodiment, the switch board 43 is divided into, for example, four parts, and is attached on the pair of board support rails 44 with a length corresponding to about 20 keys 2.
これらスイッチ基板43の下面には、図2および図10に示すように、ゴムスイッチ45がそれぞれ設けられている。このゴムスイッチ45は、鍵2の配列方向に長いゴムシートに逆ドーム状の膨出部45aが複数のハンマーアーム36にそれぞれ対応して形成された構成になっている。この膨出部45aの内部には、スイッチ基板43の下面に設けられた複数の固定接点(図示せず)に接離可能に接触する複数の可動接点45bがハンマーアーム36の前後方向に沿って設けられている。
As shown in FIGS. 2 and 10, rubber switches 45 are provided on the lower surfaces of the switch boards 43, respectively. The rubber switch 45 has a structure in which an inverted dome-shaped bulging portion 45a is formed on a rubber sheet long in the arrangement direction of the keys 2 so as to correspond to the plurality of hammer arms 36, respectively. Inside the bulging portion 45a, there are a plurality of movable contacts 45b that come into contact with and separate from a plurality of fixed contacts (not shown) provided on the lower surface of the switch substrate 43 along the front-rear direction of the hammer arm 36. Is provided.
これにより、ゴムスイッチ45は、図2に示すように、ハンマー部材11がハンマー保持部15のハンマー保持軸34を中心に時計回りに回転して、ハンマーアーム36のスイッチ押圧部42によって下側から押圧された際に、逆ドーム状の膨出部45aが弾性変形して、複数の可動接点45bが時間を持って順次、複数の固定接点に接触することにより、鍵2の押鍵強さに応じたスイッチ信号を出力するように構成されている。
Thereby, as shown in FIG. 2, the rubber switch 45 is rotated clockwise around the hammer holding shaft 34 of the hammer holding portion 15 by the hammer pressing portion 42 of the hammer arm 36 from the lower side. When pressed, the inverted dome-shaped bulging portion 45a is elastically deformed, and the plurality of movable contacts 45b sequentially contact the plurality of fixed contacts with time, thereby increasing the key pressing strength of the key 2. A corresponding switch signal is output.
次に、このような電子鍵盤楽器の鍵盤装置1を組み立てる場合について説明する。
まず、ベース板5上に複数の鍵2および複数の支持部材20を設置する。この場合には、図1および図2に示すように、88個の鍵2をベース板5上にバランスピン4a、4bによってそれぞれ上下方向に回転可能に取り付けた状態で並列に配列させる。また、支持部材20をベース板5上における鍵2の配列方向における両端部に位置する箇所と、20個の鍵2ごとに位置する3箇所の各鍵2間の箇所とに取り付ける。
Next, the case where the keyboard apparatus 1 of such an electronic keyboard musical instrument is assembled will be described.
First, a plurality of keys 2 and a plurality of support members 20 are installed on the base plate 5. In this case, as shown in FIGS. 1 and 2, 88 keys 2 are arranged in parallel on the base plate 5 so as to be vertically rotatable by the balance pins 4a and 4b. In addition, the support member 20 is attached to locations on both ends of the base plate 5 in the arrangement direction of the keys 2 and locations between the three keys 2 positioned for each of the 20 keys 2.
この状態で、図3に示すように、複数の支持部材20の各後側レール支持部20c上に伝達支持レール17を取り付けて鍵2の配列方向の全長に亘って配置すると共に、この伝達支持レール17上に複数の伝達保持部材12および複数のストッパ支持部21を鍵2の配列方向に沿って取り付ける。同様に、複数の支持部材20の各前側レール支持部20d上にハンマー支持レール18を取り付けて鍵2の配列方向の全長に亘って配置すると共に、このハンマー支持レール18上に複数のハンマー保持部材14を鍵2の配列方向に沿って取り付ける。
In this state, as shown in FIG. 3, the transmission support rails 17 are attached to the rear rail support portions 20 c of the plurality of support members 20 and arranged over the entire length in the arrangement direction of the keys 2. A plurality of transmission holding members 12 and a plurality of stopper support portions 21 are attached on the rail 17 along the arrangement direction of the keys 2. Similarly, the hammer support rails 18 are attached to the front rail support portions 20d of the plurality of support members 20 and arranged over the entire length of the key 2 in the arrangement direction, and a plurality of hammer holding members are provided on the hammer support rails 18. 14 is attached along the arrangement direction of the keys 2.
そして、複数のストッパ支持部21を、複数の支持部材10に対応する伝達支持レール17上の5箇所に、複数の伝達保持部材12の上方に突出させた状態で取り付ける。この状態で、複数の伝達部材10を複数の伝達保持部材12の各伝達保持部13に順次取り付ける。この場合には、図7に示すように、伝達部材10の伝達嵌合部26を伝達保持部13の軸支持部22における一対のガイド壁22a間に順次配置する。
Then, the plurality of stopper support portions 21 are attached to five locations on the transmission support rails 17 corresponding to the plurality of support members 10 in a state of protruding above the plurality of transmission holding members 12. In this state, the plurality of transmission members 10 are sequentially attached to the transmission holding portions 13 of the plurality of transmission holding members 12. In this case, as shown in FIG. 7, the transmission fitting portion 26 of the transmission member 10 is sequentially disposed between the pair of guide walls 22 a in the shaft support portion 22 of the transmission holding portion 13.
このときには、伝達部材10の伝達嵌合部26の伝達嵌合孔26bを、複数の伝達保持部13の各軸支持部22における各一対のガイド壁22aに設けられた各伝達軸挿入部22bに同一軸上に対応させる。この状態で、伝達保持軸24の一端部を、伝達保持部材12の一方の端部側から複数の伝達保持部13の各伝達軸挿入部22bに順次挿入すると共に、複数の伝達部材10の各伝達嵌合孔26bに順次挿入する。
At this time, the transmission fitting hole 26b of the transmission fitting portion 26 of the transmission member 10 is inserted into each transmission shaft insertion portion 22b provided on each pair of guide walls 22a in each shaft support portion 22 of the plurality of transmission holding portions 13. Match on the same axis. In this state, one end portion of the transmission holding shaft 24 is sequentially inserted into each transmission shaft insertion portion 22b of the plurality of transmission holding portions 13 from one end side of the transmission holding member 12, and each of the plurality of transmission members 10 is also provided. They are sequentially inserted into the transmission fitting holes 26b.
そして、伝達保持軸24の一端部を、伝達保持部材12の他方の端部に位置する軸支持部22の伝達軸挿入部22bに挿入する。これにより、伝達保持軸24が伝達保持部材12にその鍵配列方向の全長に亘って取り付けられ、複数の伝達部材10が鍵配列方向に沿って並列に配列された状態で、伝達保持軸24に回転可能に取り付けられる。
Then, one end portion of the transmission holding shaft 24 is inserted into the transmission shaft insertion portion 22 b of the shaft support portion 22 located at the other end portion of the transmission holding member 12. As a result, the transmission holding shaft 24 is attached to the transmission holding member 12 over the entire length in the key arrangement direction, and the plurality of transmission members 10 are arranged in parallel along the key arrangement direction. Mounted rotatably.
このときには、伝達嵌合部26が軸支持部22の一対のガイド壁22a間に挿入された際に、伝達嵌合部26のスリット溝26cによって、伝達嵌合部26が一対のガイド壁22aの各対向面に摺動可能に弾接して挟まれた状態で回転する。このため、伝達部材10が鍵2の配列方向に横触れすることがなく、上下方向に回転する。
At this time, when the transmission fitting portion 26 is inserted between the pair of guide walls 22a of the shaft support portion 22, the transmission fitting portion 26 is formed between the pair of guide walls 22a by the slit groove 26c of the transmission fitting portion 26. It rotates in a state of being slidably elastically contacted with each facing surface. For this reason, the transmission member 10 does not touch the arrangement direction of the keys 2 and rotates in the vertical direction.
また、このときには、伝達部材10の下部の第1伝達フェルト28が鍵2のキャプスタン29に上方から当接し、伝達部材10が初期位置に規制される。この場合には、伝達部材10の後側下部に設けられた係合部27が伝達保持部15の規制部23である一対の規制壁間に挿入されて、伝達部材10を回転可能にガイドするほか、梱包輸送時に伝達部材10が鍵2の配列方向に横振れするのを規制する。
At this time, the first transmission felt 28 below the transmission member 10 contacts the capstan 29 of the key 2 from above, and the transmission member 10 is restricted to the initial position. In this case, the engaging portion 27 provided at the lower rear portion of the transmission member 10 is inserted between the pair of restriction walls which are the restriction portions 23 of the transmission holding portion 15 to guide the transmission member 10 to be rotatable. In addition, the lateral movement of the transmission member 10 in the direction in which the keys 2 are arranged is restricted during package transportation.
このように、複数の伝達部材10それぞれを伝達保持部材12の複数の伝達保持部13に対応させ、この状態で伝達部材10の伝達嵌合部26を複数の伝達保持部13の各軸支持部22における各一対のガイド壁22a間に順次配置し、伝達部材10の伝達嵌合部26の伝達嵌合孔26bを、軸支持部22の一対のガイド壁22aに設けられた各伝達軸挿入部22bに同一軸上に対応させる。
Thus, each of the plurality of transmission members 10 corresponds to the plurality of transmission holding portions 13 of the transmission holding member 12, and in this state, the transmission fitting portions 26 of the transmission member 10 are connected to the shaft support portions of the plurality of transmission holding portions 13. The transmission fitting holes 26b of the transmission fitting portion 26 of the transmission member 10 are sequentially arranged between the pair of guide walls 22a of the transmission member 10, and the transmission shaft insertion portions provided in the pair of guide walls 22a of the shaft support portion 22 are arranged. Correspond to 22b on the same axis.
この状態で、伝達保持軸24を複数の伝達保持部13の各伝達軸挿入部22bに順次挿入すると共に、複数の伝達部材10の各伝達嵌合孔26bに順次挿入する。これにより、複数の伝達部材10が伝達保持部材12の各伝達保持部13に伝達保持軸24によって順次取り付けられ、すべての鍵2に対応してすべての伝達部材10が取り付けられる。この状態で、伝達保持部材12の両端部に蓋部(図示せず)を取り付けて伝達保持軸24の抜け出しを防ぐ。
In this state, the transmission holding shaft 24 is sequentially inserted into the transmission shaft insertion portions 22b of the plurality of transmission holding portions 13 and is sequentially inserted into the transmission fitting holes 26b of the plurality of transmission members 10. Accordingly, the plurality of transmission members 10 are sequentially attached to the transmission holding portions 13 of the transmission holding member 12 by the transmission holding shaft 24, and all the transmission members 10 are attached corresponding to all the keys 2. In this state, lids (not shown) are attached to both ends of the transmission holding member 12 to prevent the transmission holding shaft 24 from coming off.
この後、複数のストッパ支持部21の上部に下限ストッパレール39を取り付け、この下限ストッパレール39上に下限ストッパ38を取り付ける。そして、複数のハンマー部材11をそれぞれ複数のハンマー保持部材14の各ハンマー保持部15に順次取り付ける。この場合には、図10に示すように、ハンマー部材11のハンマー嵌合部37を複数のハンマー保持部15の各軸支持部32における各一対のガイド壁32a間に順次配置する。
Thereafter, a lower limit stopper rail 39 is attached to the upper part of the plurality of stopper support portions 21, and a lower limit stopper 38 is attached on the lower limit stopper rail 39. Then, the plurality of hammer members 11 are sequentially attached to the respective hammer holding portions 15 of the plurality of hammer holding members 14. In this case, as shown in FIG. 10, the hammer fitting portion 37 of the hammer member 11 is sequentially disposed between each pair of guide walls 32 a in each shaft support portion 32 of the plurality of hammer holding portions 15.
このときには、ハンマー部材11のハンマー嵌合部37のハンマー嵌合孔37bを、複数のハンマー保持部15の各軸支持部32における各一対のガイド壁32aに設けられた各ハンマー軸挿入部32bに同一軸上に対応させる。この状態で、ハンマー保持軸34の一端部を、ハンマー保持部材14の一方の端部側から複数のハンマー保持部15の各ハンマー軸挿入部32bに順次挿入すると共に、複数のハンマー部材11の各ハンマー嵌合孔37bに順次挿入する。
At this time, the hammer fitting hole 37b of the hammer fitting portion 37 of the hammer member 11 is inserted into each hammer shaft insertion portion 32b provided on each pair of guide walls 32a in each shaft support portion 32 of the plurality of hammer holding portions 15. Match on the same axis. In this state, one end portion of the hammer holding shaft 34 is sequentially inserted into each hammer shaft insertion portion 32b of the plurality of hammer holding portions 15 from one end portion side of the hammer holding member 14, and each of the plurality of hammer members 11 is also provided. The hammers are sequentially inserted into the hammer fitting holes 37b.
そして、ハンマー保持軸34の一端部を、ハンマー保持部材14の他方の端部に位置する軸支持部32のハンマー軸挿入部32bに挿入する。これにより、ハンマー保持軸34がハンマー保持部材14にその鍵配列方向の全長に亘って取り付けられ、複数のハンマー部材11が鍵配列方向に沿って並列に配列された状態で、ハンマー保持軸34に回転可能に取り付けられる。
Then, one end portion of the hammer holding shaft 34 is inserted into the hammer shaft insertion portion 32 b of the shaft support portion 32 located at the other end portion of the hammer holding member 14. Accordingly, the hammer holding shaft 34 is attached to the hammer holding member 14 over the entire length in the key arrangement direction, and the hammer holding shaft 34 is attached to the hammer holding shaft 34 in a state where the plurality of hammer members 11 are arranged in parallel along the key arrangement direction. Mounted rotatably.
このときには、ハンマー嵌合部37が軸支持部32の一対のガイド壁32a間に挿入された際に、ハンマー嵌合部37のスリット溝37cによって、ハンマー嵌合部37が一対のガイド壁32aの各対向面に摺動可能に弾接して挟まれた状態で回転する。これにより、ハンマー部材11が、鍵2の配列方向に横触れすることがなく、上下方向に回転する。
At this time, when the hammer fitting portion 37 is inserted between the pair of guide walls 32a of the shaft support portion 32, the hammer fitting portion 37 is formed between the pair of guide walls 32a by the slit groove 37c of the hammer fitting portion 37. It rotates in a state of being slidably elastically contacted with each facing surface. As a result, the hammer member 11 rotates in the vertical direction without being laterally touched in the arrangement direction of the keys 2.
この状態で、ハンマー保持軸34を中心にハンマー部材11を回転させ、ハンマー部材11のハンマー突起部31を伝達部材10の第2伝達フェルト30に上方から当接させると共に、ハンマーアーム36の後側下部を下限ストッパ38に上方から当接させる。これにより、ハンマー部材11が後部下がりに傾斜した状態で初期位置に規制される。
In this state, the hammer member 11 is rotated around the hammer holding shaft 34, and the hammer protrusion 31 of the hammer member 11 is brought into contact with the second transmission felt 30 of the transmission member 10 from above and the rear side of the hammer arm 36. The lower part is brought into contact with the lower limit stopper 38 from above. As a result, the hammer member 11 is regulated to the initial position in a state where the hammer member 11 is inclined rearwardly downward.
このように、複数のハンマー部材11それぞれをハンマー保持部材14の複数のハンマー保持部15に対応させ、この状態でハンマー部材11のハンマー嵌合部37を複数のハンマー保持部15の各軸支持部32における各一対のガイド壁32a間に順次配置し、ハンマー部材11のハンマー嵌合部37のハンマー嵌合孔37bを、軸支持部32の一対のガイド壁32aに設けられた各ハンマー軸挿入部32bに同一軸上に対応させる。
Thus, each of the plurality of hammer members 11 is made to correspond to the plurality of hammer holding portions 15 of the hammer holding member 14, and in this state, the hammer fitting portions 37 of the hammer member 11 are connected to the respective shaft support portions of the plurality of hammer holding portions 15. The hammer fitting holes 37b of the hammer fitting portion 37 of the hammer member 11 are sequentially arranged between the pair of guide walls 32a of the hammer member 11, and the hammer shaft insertion portions provided in the pair of guide walls 32a of the shaft support portion 32 are arranged. It corresponds to 32b on the same axis.
この状態で、ハンマー保持軸34を複数のハンマー保持部15の各ハンマー軸挿入部32bに順次挿入すると共に、複数のハンマー部材11の各ハンマー嵌合孔37bに順次挿入する。これにより、複数のハンマー部材11がハンマー保持部材14の各ハンマー保持部14にハンマー保持軸34によって順次取り付けられ、すべての鍵2に対応してすべてのハンマー部材11が取り付けられる。この状態で、ハンマー保持部材14の両端部に蓋部(図示せず)を取り付けてハンマー保持軸34の抜け出しを防ぐ。
In this state, the hammer holding shaft 34 is sequentially inserted into each hammer shaft insertion portion 32 b of the plurality of hammer holding portions 15 and is sequentially inserted into each hammer fitting hole 37 b of the plurality of hammer members 11. As a result, the plurality of hammer members 11 are sequentially attached to the respective hammer holding portions 14 of the hammer holding member 14 by the hammer holding shaft 34, and all the hammer members 11 are attached corresponding to all the keys 2. In this state, lids (not shown) are attached to both ends of the hammer holding member 14 to prevent the hammer holding shaft 34 from coming off.
この後、複数の支持部材20の各ストッパレール支持部20eに上限ストッパレール41を取り付け、この上限ストッパレール41の下面に上限ストッパ40を取り付ける。また、複数の支持部材20の各基板レール支持部20f上に所定間隔離して一対の基板支持レール44を取り付け、これら一対の基板支持レール44上に複数のスイッチ基板43を鍵2の配列方向に沿って取り付ける。
Thereafter, the upper limit stopper rail 41 is attached to each stopper rail support portion 20 e of the plurality of support members 20, and the upper limit stopper 40 is attached to the lower surface of the upper limit stopper rail 41. In addition, a pair of board support rails 44 are mounted on the board rail support portions 20f of the plurality of support members 20 at a predetermined interval, and the plurality of switch boards 43 are arranged on the pair of board support rails 44 in the arrangement direction of the key 2. Install along.
この場合には、予め、スイッチ基板43の下面にゴムスイッチ45を取り付ける。そして、このスイッチ基板43を一対の基板支持レール44上に取り付ける際には、ゴムスイッチ45の各膨出部45aを複数のハンマーアーム36の各スイッチ押圧部42にそれぞれ対応させる。この状態で、スイッチ基板43を一対の基板支持レール44上に取り付ける。
In this case, the rubber switch 45 is attached to the lower surface of the switch substrate 43 in advance. When the switch board 43 is mounted on the pair of board support rails 44, the bulging portions 45a of the rubber switch 45 are made to correspond to the switch pressing portions 42 of the plurality of hammer arms 36, respectively. In this state, the switch board 43 is mounted on the pair of board support rails 44.
次に、このような電子鍵盤楽器の鍵盤装置1の作用について説明する。
この鍵盤装置1では、鍵2を押鍵操作して演奏することができる。このときには、鍵2が押鍵されると、鍵2がバランスピン4a、4bを中心に時計回りに回転し、鍵2のキャプスタン29が伝達部材10を押し上げる。これにより、伝達部材10が伝達保持部13に取り付けられた伝達保持軸24を中心に反時計回りに回転する。
Next, the operation of the keyboard device 1 of such an electronic keyboard instrument will be described.
In this keyboard device 1, it is possible to perform by pressing the key 2. At this time, when the key 2 is depressed, the key 2 rotates clockwise around the balance pins 4 a and 4 b, and the capstan 29 of the key 2 pushes up the transmission member 10. Thereby, the transmission member 10 rotates counterclockwise around the transmission holding shaft 24 attached to the transmission holding portion 13.
このときには、伝達部材10の伝達嵌合部26の伝達嵌合孔26aに伝達保持軸24が嵌合しているので、伝達部材10がガタつくことなく、伝達保持軸24を中心に円滑に回転する。また、このときには、伝達部材10の伝達嵌合部26が伝達保持部13の一対のガイド壁22a間に摺動回転可能に挟まれた状態でガイドされるので、伝達部材10が横振れすることなく、円滑に上下方向に回転する。
At this time, since the transmission holding shaft 24 is fitted in the transmission fitting hole 26a of the transmission fitting portion 26 of the transmission member 10, the transmission member 10 does not rattle and rotates smoothly around the transmission holding shaft 24. To do. Further, at this time, since the transmission fitting portion 26 of the transmission member 10 is guided in a state of being slidably rotatable between the pair of guide walls 22a of the transmission holding portion 13, the transmission member 10 swings sideways. Smoothly rotates up and down.
このように、伝達部材10が鍵2のキャプスタン29によって押し上げられて反時計回りに回転すると、この伝達部材10の第2フェルト30によってハンマー部材11のハンマー突起部31が押上げられる。これにより、ハンマー部材11がハンマー保持部15のハンマー保持軸34を中心に時計回りに回転して、鍵2にアクション荷重を付与する。
As described above, when the transmission member 10 is pushed up by the capstan 29 of the key 2 and rotates counterclockwise, the hammer protrusion 31 of the hammer member 11 is pushed up by the second felt 30 of the transmission member 10. As a result, the hammer member 11 rotates clockwise around the hammer holding shaft 34 of the hammer holding portion 15 to apply an action load to the key 2.
このときには、伝達部材10と同様、ハンマー部材11のハンマー嵌合部37のハンマー嵌合孔37aにハンマー保持部15に取り付けられたハンマー保持軸34が嵌合しているので、ハンマー部材11がガタつくことなく、ハンマー保持軸34を中心に円滑に回転する。また、このときには、ハンマー部材11のハンマー嵌合部37がハンマー保持部15の一対のガイド壁32a間に摺動回転可能に挟まれた状態でガイドされるので、ハンマー部材11が横振れすることなく、円滑に上下方向に回転する。
At this time, similarly to the transmission member 10, the hammer holding shaft 34 attached to the hammer holding portion 15 is fitted into the hammer fitting hole 37 a of the hammer fitting portion 37 of the hammer member 11. It smoothly rotates around the hammer holding shaft 34 without being attached. At this time, since the hammer fitting portion 37 of the hammer member 11 is guided while being slidably rotatable between the pair of guide walls 32 a of the hammer holding portion 15, the hammer member 11 swings sideways. Smoothly rotates up and down.
このようにハンマー部材11がハンマー保持軸34を中心に時計回りに回転する際には、ハンマー部材11の慣性モーメントによって鍵2にアクション荷重が付与される。すなわち、ハンマーアーム36は、鍵2の前後方向の長さが伝達部材10とほぼ同じ長さに形成され、このハンマーハンマーアーム36の後端部にハンマー部35が形成され、この状態でハンマーアーム36の前端部のハンマー嵌合部37がハンマー保持軸34に回転可能に取り付けられている。
Thus, when the hammer member 11 rotates clockwise about the hammer holding shaft 34, an action load is applied to the key 2 by the moment of inertia of the hammer member 11. That is, the hammer arm 36 is formed so that the length of the key 2 in the front-rear direction is substantially the same as that of the transmission member 10, and a hammer portion 35 is formed at the rear end portion of the hammer hammer arm 36. A hammer fitting portion 37 at the front end portion of 36 is rotatably attached to the hammer holding shaft 34.
このため、ハンマー部材11がハンマー保持軸34を中心に時計回りに回転する際には、ハンマー部材11に慣性モーメントが発生し、この慣性モーメントによって鍵2にアクション荷重が付与される。これにより、アコースティックピアノの鍵タッチ感に極めて近似した鍵タッチ感が得られる。
For this reason, when the hammer member 11 rotates clockwise around the hammer holding shaft 34, an inertia moment is generated in the hammer member 11, and an action load is applied to the key 2 by this inertia moment. Thereby, a key touch feeling very close to the key touch feeling of an acoustic piano can be obtained.
このようにハンマー部材11がハンマー保持軸34を中心に時計回りに回転すると、ハンマーアーム36のスイッチ押圧部42がスイッチ基板43に設けられたゴムスイッチ45の逆ドーム状の膨出部45aを下側から押圧する。これにより、逆ドーム状の膨出部45aが弾性変形して、膨出部45a内の複数の可動接点45bが時間を持って順次、複数の固定接点に接触することにより、鍵2の押鍵強さに応じたスイッチ信号を出力し、スピーカ(図示せず)から楽音を発生する。
When the hammer member 11 rotates clockwise about the hammer holding shaft 34 in this way, the switch pressing portion 42 of the hammer arm 36 moves down the inverted dome-shaped bulging portion 45 a of the rubber switch 45 provided on the switch substrate 43. Press from the side. As a result, the inverted dome-shaped bulging portion 45a is elastically deformed, and the plurality of movable contacts 45b in the bulging portion 45a sequentially contact with the plurality of fixed contacts with time, thereby pressing the key 2 A switch signal corresponding to the strength is output, and a musical sound is generated from a speaker (not shown).
そして、ハンマー部材11がハンマー保持軸34を中心に更に時計回りに回転すると、ハンマーアーム36の後端上部が上限ストッパ40に下側から当接して、ハンマー部材11の回転が規制される。この後、鍵2が離鍵動作を開始すると、伝達部材10が時計回りに回転して初期位置に戻ると共に、ハンマー部材11が反時計回りに回転して初期位置に戻る。これに伴って、鍵2が初期位置に戻る。
When the hammer member 11 further rotates clockwise about the hammer holding shaft 34, the upper rear end of the hammer arm 36 comes into contact with the upper limit stopper 40 from below, and the rotation of the hammer member 11 is restricted. Thereafter, when the key 2 starts a key release operation, the transmission member 10 rotates clockwise to return to the initial position, and the hammer member 11 rotates counterclockwise to return to the initial position. Along with this, the key 2 returns to the initial position.
このように、この電子鍵盤装置のアクション機構3によれば、並列に配列された複数の鍵2それぞれの押鍵操作に応じて回転動作する複数の伝達部材10と、伝達部材10の回転動作に応じて回転動作し、鍵2に対してアクション荷重を付与する複数のハンマー部材11と、これら複数のハンマー部材11それぞれに対応する複数のハンマー保持部15が鍵2の配列方向に沿って一体に形成され、かつ複数のハンマー保持部15それぞれにハンマー軸挿入部37bが同一軸上に対応して設けられたハンマー保持部材14と、これら複数のハンマー保持部15それぞれのハンマー軸挿入部37bに挿入されてハンマー保持部材14の全長に亘って取り付けられ、複数のハンマー部材11それぞれが回転動作可能に取り付けられるハンマー保持軸34と、を備えているので、部品点数が少なく、組立て作業性および生産性の向上を図り、低コスト化を図ることができる。
As described above, according to the action mechanism 3 of the electronic keyboard device, the plurality of transmission members 10 that rotate according to the key pressing operation of each of the plurality of keys 2 arranged in parallel, and the rotation operation of the transmission member 10 are performed. Accordingly, a plurality of hammer members 11 that rotate in response and apply an action load to the key 2 and a plurality of hammer holding portions 15 corresponding to the plurality of hammer members 11 are integrally formed along the arrangement direction of the keys 2. A hammer holding member 14 formed and provided with a hammer shaft insertion portion 37b corresponding to the same axis in each of the plurality of hammer holding portions 15, and inserted into the hammer shaft insertion portions 37b of each of the plurality of hammer holding portions 15. The hammer holding shaft is attached over the entire length of the hammer holding member 14, and each of the plurality of hammer members 11 is attached so as to be rotatable. 4 is provided with the less number of parts, aims to improve the assembling workability and productivity, it is possible to reduce the cost.
すなわち、この電子鍵盤装置のアクション機構3では、複数のハンマー部材11をハンマー保持部材14に取り付ける前に、予め、複数のハンマー保持部15を個別に製作して組み付ける必要がなく、複数のハンマー保持部15を一度に設置することができ、この状態で複数のハンマー保持部15の各ハンマー軸挿入部32bにハンマー保持軸34を挿入して取り付ける際に、複数のハンマー部材15それぞれをハンマー保持軸34に順次回転動作可能に取り付けることができる。このため、部品点数が少なく、組立て作業が容易にできるので、生産性が良く、低コスト化を図ることができる。
In other words, in the action mechanism 3 of the electronic keyboard device, it is not necessary to separately manufacture and assemble the plurality of hammer holding portions 15 in advance before attaching the plurality of hammer members 11 to the hammer holding member 14. The portion 15 can be installed at a time, and when the hammer holding shaft 34 is inserted and attached to each hammer shaft insertion portion 32b of the plurality of hammer holding portions 15 in this state, each of the plurality of hammer members 15 is attached to the hammer holding shaft. 34 can be attached so as to be sequentially rotatable. For this reason, since the number of parts is small and the assembling work can be facilitated, the productivity is good and the cost can be reduced.
この場合、複数のハンマー部材11それぞれは、ハンマー保持軸34が挿入するハンマー嵌合孔37bが設けられたハンマー嵌合部37を有し、複数のハンマー保持部15それぞれは、ハンマー嵌合部37が挿入する一対のガイド壁32aからなる軸支持部32を有し、この軸支持部32の一対のガイド壁32aにハンマー軸挿入部32bが同一軸上に設けられていることにより、ハンマー保持軸34を複数のハンマー保持部15の各ハンマー軸挿入部32bに挿入する際に、ハンマー保持軸34をハンマー嵌合部37のハンマー嵌合孔37bに順次挿入するだけで、簡単にかつ容易に取り付けることができるので、組立て作業性が良い。
In this case, each of the plurality of hammer members 11 has a hammer fitting portion 37 provided with a hammer fitting hole 37 b into which the hammer holding shaft 34 is inserted, and each of the plurality of hammer holding portions 15 has a hammer fitting portion 37. Has a shaft support portion 32 composed of a pair of guide walls 32a, and a hammer shaft insertion portion 32b is provided on the same shaft in the pair of guide walls 32a of the shaft support portion 32, so that a hammer holding shaft is provided. When inserting 34 into each hammer shaft insertion portion 32 b of the plurality of hammer holding portions 15, simply inserting the hammer holding shaft 34 into the hammer fitting hole 37 b of the hammer fitting portion 37 in a simple and easy manner. As a result, assembly workability is good.
すなわち、ハンマー部材11のハンマー嵌合部37を複数のハンマー保持部15の各軸支持部32における各一対のガイド壁32a間に配置した状態で、ハンマー部材11のハンマー嵌合部37のハンマー嵌合孔37bを各一対のガイド壁32aそれぞれに設けられた各ハンマー挿入部32bに同一軸上に正確にかつ良好に対応させることができる。
That is, in the state where the hammer fitting portion 37 of the hammer member 11 is disposed between each pair of guide walls 32a in the shaft support portions 32 of the plurality of hammer holding portions 15, the hammer fitting of the hammer fitting portion 37 of the hammer member 11 is performed. The joint hole 37b can be made to correspond to each hammer insertion part 32b provided in each of a pair of guide walls 32a correctly and satisfactorily on the same axis.
この状態で、ハンマー保持軸34を複数のハンマー保持部15の各ハンマー挿入部32bとハンマー部材11のハンマー嵌合孔37bとに順次挿入することができるので、ハンマー保持部材14の全長に亘って複数のハンマー部材11を一度に取り付けることができる。これにより、ハンマー部材11をハンマー保持軸34に回転可能な状態で確実にかつ良好に取り付けることができるので、ハンマー部材11がガタつくことなく、ハンマー部材11を円滑にかつ良好に回転させることができる。
In this state, the hammer holding shaft 34 can be sequentially inserted into each of the hammer insertion portions 32b of the plurality of hammer holding portions 15 and the hammer fitting holes 37b of the hammer member 11, so that the entire length of the hammer holding member 14 is reached. A plurality of hammer members 11 can be attached at a time. As a result, the hammer member 11 can be securely and satisfactorily attached to the hammer holding shaft 34 in a rotatable state, so that the hammer member 11 can be smoothly and satisfactorily rotated without the hammer member 11 rattling. it can.
このため、複数のハンマー部材11をハンマー保持部材14に取り付ける前に、予め、複数のハンマー保持部15が鍵2の配列方向に沿って形成されたハンマー保持部材14を設置しても、ハンマー部材11のハンマー嵌合部37を複数のハンマー保持部15の各一対のガイド壁32a間に配置することができると共に、ハンマー部材11のハンマー嵌合部37のハンマー嵌合孔37bを各一対のガイド壁32aそれぞれに設けられた各ハンマー挿入部32bに同一軸上に確実に対応させることができる。
For this reason, even if the hammer holding member 14 in which the plurality of hammer holding portions 15 are formed along the arrangement direction of the key 2 is installed in advance before attaching the plurality of hammer members 11 to the hammer holding member 14, the hammer member 11 hammer fitting portions 37 can be arranged between each pair of guide walls 32 a of the plurality of hammer holding portions 15, and the hammer fitting holes 37 b of the hammer fitting portion 37 of the hammer member 11 are arranged in each pair of guides. Each hammer insertion part 32b provided in each wall 32a can be made to correspond on the same axis reliably.
この状態で、ハンマー保持軸34を一対のガイド壁32aの各ハンマー挿入部22bとハンマー部材11のハンマー嵌合孔37bとに順次挿入することができるので、ハンマー部材11をハンマー保持軸34によって複数のハンマー保持部15に簡単にかつ容易に順次取り付けることができる。このため、組立て作業が容易にでき、生産性の向上を図ることができる。
In this state, the hammer holding shaft 34 can be sequentially inserted into the respective hammer insertion portions 22b of the pair of guide walls 32a and the hammer fitting holes 37b of the hammer member 11, so that a plurality of hammer members 11 are provided by the hammer holding shaft 34. It can be easily and easily attached to the hammer holding portion 15 in succession. For this reason, an assembling work can be facilitated and productivity can be improved.
この場合、ハンマー保持部15には、ハンマー部材11の横振れを防ぐ一対のガイド壁32aが設けられていることにより、ハンマー保持部15のハンマー保持軸34にハンマー部材11のハンマー嵌合部37を回転可能に取り付けると、ハンマー嵌合部37を一対のガイド壁32aで摺動可能に挟むことができる。また、ハンマー嵌合部37には、スリット溝37cがハンマー部材11の長手方向に沿って形成されているので、ハンマー嵌合部37が一対のガイド壁32a間に挿入された際に、スリット溝37cによって一対のガイド壁32aに摺動可能に弾接させることができる。
In this case, the hammer holding portion 15 is provided with a pair of guide walls 32 a that prevent the hammer member 11 from swinging, so that the hammer fitting portion 37 of the hammer member 11 is attached to the hammer holding shaft 34 of the hammer holding portion 15. If it attaches so that rotation is possible, the hammer fitting part 37 can be slidably pinched by a pair of guide wall 32a. Further, since the slit groove 37c is formed in the hammer fitting portion 37 along the longitudinal direction of the hammer member 11, when the hammer fitting portion 37 is inserted between the pair of guide walls 32a, the slit groove 37c is formed. 37c can be slidably elastically contacted with the pair of guide walls 32a.
このため、このアクション機構3では、押鍵操作に応じてハンマー部材11が回転する際に、ハンマー保持部15の一対のガイド壁32aによってハンマー部材11が鍵2の配列方向に横振れするのを防ぐことができる。これにより、ハンマー部材11を極めて円滑にかつ良好に回転させることができると共に、ハンマー部材11の位置精度と動作精度とを高めることができる。
For this reason, in this action mechanism 3, when the hammer member 11 is rotated in response to the key pressing operation, the hammer member 11 is prevented from swinging in the arrangement direction of the key 2 by the pair of guide walls 32 a of the hammer holding portion 15. Can be prevented. Thereby, the hammer member 11 can be rotated extremely smoothly and satisfactorily, and the positional accuracy and operation accuracy of the hammer member 11 can be increased.
また、この電子鍵盤装置のアクション機構3によれば、複数の伝達部材10それぞれに対応する複数の伝達保持部13が鍵2の配列方向に沿って一体に形成されていると共に、複数の伝達保持部13それぞれに伝達軸挿入部22bが同一軸上に設けられた伝達保持部材12と、複数の伝達保持部13それぞれの伝達軸挿入部22bに挿入されて伝達保持部材12の全長に亘って取り付けられ、複数の伝達部材10それぞれが回転動作可能に取り付けられる伝達保持軸24と、を備えているので、部品点数が少なく、組立て作業が容易にできるので、生産性が良く、低コスト化を図ることができる。
Further, according to the action mechanism 3 of the electronic keyboard device, a plurality of transmission holding portions 13 corresponding to the plurality of transmission members 10 are integrally formed along the arrangement direction of the keys 2 and a plurality of transmission holdings are made. A transmission holding member 12 having a transmission shaft insertion portion 22b provided on the same axis in each of the portions 13, and a transmission holding member 12 inserted into the transmission shaft insertion portion 22b of each of the plurality of transmission holding portions 13 and attached over the entire length of the transmission holding member 12. Since each of the plurality of transmission members 10 is provided with a transmission holding shaft 24 that is rotatably mounted, the number of parts is small and the assembly work can be facilitated, so that productivity is improved and cost reduction is achieved. be able to.
すなわち、この電子鍵盤装置のアクション機構3では、複数の伝達部材10を伝達保持部材12に取り付ける前に、予め、複数の伝達保持部13を個別に製作して組み付ける必要がなく、複数の伝達保持部13を一度に設置することができ、この状態で伝達軸挿入部22bに伝達保持軸24を挿入する際に、複数の伝達部材12それぞれを伝達保持軸24に回転動作可能に取り付けることができる。このため、ハンマー保持部材14と同様、部品点数が少なく、組立て作業が容易にできるので、生産性が良く、低コスト化を図ることができる。
That is, in the action mechanism 3 of the electronic keyboard device, it is not necessary to separately manufacture and assemble the plurality of transmission holding portions 13 in advance before attaching the plurality of transmission members 10 to the transmission holding member 12. The portion 13 can be installed at a time, and when the transmission holding shaft 24 is inserted into the transmission shaft insertion portion 22b in this state, each of the plurality of transmission members 12 can be attached to the transmission holding shaft 24 so as to be rotatable. . For this reason, like the hammer holding member 14, the number of parts is small, and the assembly work can be easily performed. Therefore, the productivity is good and the cost can be reduced.
この場合、複数の伝達部材10それぞれは、伝達保持軸24が挿入する伝達嵌合孔26bが設けられた伝達嵌合部26を有し、複数の伝達保持部13それぞれは、伝達嵌合部26が挿入する一対のガイド壁22aからなる軸支持部22を有し、この軸支持部22の一対のガイド壁22aに伝達軸挿入部22bが同一軸上に設けられていることにより、伝達保持軸24を複数の伝達保持部13の各伝達軸挿入部22bに挿入する際に、伝達保持軸24を伝達部材10の伝達嵌合孔26bに順次挿入するだけで、ハンマー部材11と同様、伝達部材10を簡単にかつ容易に取り付けることができるので、組立て作業性が良い。
In this case, each of the plurality of transmission members 10 has a transmission fitting portion 26 provided with a transmission fitting hole 26b into which the transmission holding shaft 24 is inserted, and each of the plurality of transmission holding portions 13 has a transmission fitting portion 26. Has a shaft support portion 22 composed of a pair of guide walls 22a, and a pair of guide walls 22a of the shaft support portion 22 is provided with a transmission shaft insertion portion 22b on the same axis, whereby a transmission holding shaft is provided. Similar to the hammer member 11, the transmission member is simply inserted into the transmission fitting hole 26 b of the transmission member 10 in order when the 24 is inserted into the transmission shaft insertion portions 22 b of the plurality of transmission holding portions 13. Since 10 can be easily and easily attached, the assembly workability is good.
すなわち、伝達部材10の伝達嵌合部26を複数の伝達保持部13の各軸支持部22における各一対のガイド壁22a間に配置した状態で、伝達部材10の伝達嵌合部26の伝達嵌合孔37bを各一対のガイド壁22aそれぞれに設けられた各伝達軸挿入部22bに同一軸上に正確にかつ良好に対応させることができる。
That is, the transmission fitting of the transmission fitting portion 26 of the transmission member 10 is performed in a state where the transmission fitting portion 26 of the transmission member 10 is disposed between each pair of guide walls 22 a in each shaft support portion 22 of the plurality of transmission holding portions 13. The joint hole 37b can be made to correspond accurately and satisfactorily on the same axis to each transmission shaft insertion portion 22b provided in each of the pair of guide walls 22a.
この状態で、伝達保持軸24を複数の伝達保持部13の各伝達軸挿入部22bと伝達部材10の伝達嵌合孔37bとに順次挿入することができるので、伝達保持部材12の全長に亘って複数の伝達部材10を一度に取り付けることができる。これにより、伝達部材10を伝達保持軸24に回転可能な状態で確実にかつ良好に取り付けることができるので、伝達部材10がガタつくことなく、伝達部材10を円滑にかつ良好に回転動作させることができる。
In this state, the transmission holding shaft 24 can be sequentially inserted into the transmission shaft insertion portions 22b of the plurality of transmission holding portions 13 and the transmission fitting holes 37b of the transmission member 10, so that the entire length of the transmission holding member 12 is extended. Thus, a plurality of transmission members 10 can be attached at a time. Thereby, since the transmission member 10 can be reliably and satisfactorily attached to the transmission holding shaft 24 in a rotatable state, the transmission member 10 can be smoothly and satisfactorily rotated without causing the transmission member 10 to rattle. Can do.
このため、複数の伝達部材10を伝達保持部材12に取り付ける前に、予め、複数の伝達保持部13が鍵2の配列方向に沿って形成された伝達保持部材12を設置しても、複数の伝達保持部13の伝達嵌合部26を複数の伝達保持部13の各一対のガイド壁22a間に配置することができると共に、伝達部材10の伝達嵌合部26の伝達嵌合孔36bを各一対のガイド壁22aそれぞれに設けられた各伝達挿入部22bに同一軸上に確実に対応させることができる。
For this reason, even if the plurality of transmission holding portions 13 are installed in advance along the arrangement direction of the key 2 before the plurality of transmission members 10 are attached to the transmission holding member 12, a plurality of transmission holding members 12 are installed. The transmission fitting portion 26 of the transmission holding portion 13 can be disposed between each pair of guide walls 22 a of the plurality of transmission holding portions 13, and the transmission fitting holes 36 b of the transmission fitting portion 26 of the transmission member 10 are respectively provided. Each transmission insertion portion 22b provided on each of the pair of guide walls 22a can be surely associated with the same axis.
この状態で、伝達保持軸24を一対のガイド壁22aの各伝達軸挿入部22bと伝達部材10の伝達嵌合孔37bとに順次挿入することができるので、伝達部材10を伝達保持軸24によって複数の伝達保持部13に簡単にかつ容易に順次取り付けることができる。このため、組立て作業が容易にでき、生産性の向上を図ることができる。
In this state, the transmission holding shaft 24 can be sequentially inserted into each transmission shaft insertion portion 22b of the pair of guide walls 22a and the transmission fitting hole 37b of the transmission member 10, so that the transmission member 10 is moved by the transmission holding shaft 24. The plurality of transmission holding portions 13 can be easily and easily attached sequentially. For this reason, an assembling work can be facilitated and productivity can be improved.
この場合、伝達保持部13には、伝達部材10の横振れを防ぐ一対のガイド壁22aが設けられていることにより、伝達保持部13の伝達保持軸24に伝達部材10の伝達嵌合部26を回転可能に取り付けると、伝達嵌合部26を一対のガイド壁22aで摺動可能に挟むことができる。また、伝達嵌合部26には、スリット溝26cが伝達部材10の長手方向に沿って形成されているので、伝達嵌合部26が一対のガイド壁22a間に挿入された際に、スリット溝26cによって一対のガイド壁22aに摺動可能に弾接させることができる。
In this case, the transmission holding portion 13 is provided with a pair of guide walls 22 a for preventing the lateral movement of the transmission member 10, so that the transmission fitting portion 26 of the transmission member 10 is fitted to the transmission holding shaft 24 of the transmission holding portion 13. Is attached rotatably, the transmission fitting portion 26 can be slidably sandwiched between the pair of guide walls 22a. Moreover, since the slit groove 26c is formed in the transmission fitting part 26 along the longitudinal direction of the transmission member 10, when the transmission fitting part 26 is inserted between the pair of guide walls 22a, the slit groove 26c is formed. The pair of guide walls 22a can be slidably elastically contacted by 26c.
このため、このアクション機構3では、押鍵操作に応じて伝達部材10が回転する際に、伝達保持部13の一対のガイド壁22aによって伝達部材10が鍵2の配列方向に横振れするのを防ぐことができる。これにより、伝達部材10を極めて円滑にかつ良好に回転させることができると共に、伝達部材10の位置精度と動作精度とを高めることができる。
For this reason, in this action mechanism 3, when the transmission member 10 rotates in response to the key pressing operation, the transmission member 10 is not swung in the direction in which the keys 2 are arranged by the pair of guide walls 22 a of the transmission holding portion 13. Can be prevented. Thereby, while being able to rotate the transmission member 10 very smoothly and favorable, the positional accuracy and operation | movement precision of the transmission member 10 can be improved.
さらに、伝達保持部13には、伝達部材10の横方向の位置を規制する規制部23が設けられており、この規制部23は、伝達保持部材12の本体板12a上に形成された一対の規制壁であり、伝達部材10の伝達本体部25における後側下部の両側面が切り欠かれた係合部27を挟んだ状態で伝達部材10の横方向の位置を規制する構成であることにより、規制部23の一対の規制壁間で伝達部材10の係合部27を規制することができるので、伝達部材10を回転可能にガイドすることができるほか、梱包搬送時に伝達部材10を横振れさせずに、良好に位置規制できる。
Further, the transmission holding portion 13 is provided with a restriction portion 23 that restricts the lateral position of the transmission member 10, and the restriction portion 23 is a pair of body plates 12 a formed on the transmission holding member 12. By being a structure that restricts the lateral position of the transmission member 10 in a state of sandwiching the engaging portions 27 that are notched on both side surfaces of the rear lower portion of the transmission main body portion 25 of the transmission member 10. Since the engaging portion 27 of the transmission member 10 can be regulated between the pair of regulating walls of the regulating portion 23, the transmission member 10 can be guided to be rotatable, and the transmission member 10 can be swung laterally during packaging. Without restricting the position, it can be well regulated.
また、この電子鍵盤装置のアクション機構3では、鍵2の配列方向に沿って配置されて伝達保持部材12が取り付けられる伝達支持レール17と、鍵2の配列方向に沿って配置されてハンマー保持部材14が取り付けられるハンマー支持レール18と、を備えていることにより、複数の伝達保持部13が鍵2の配列方向に沿って一体に形成された伝達保持部材12を伝達支持レール17上に順次取り付けることができると共に、複数のハンマー保持部15が鍵2の配列方向に沿って一体に形成されたハンマー保持部材14をハンマー支持レール18上に順次取り付けることができ、これによっても組立て作業の簡素化を図ることができる。
Further, in the action mechanism 3 of the electronic keyboard device, the transmission support rail 17 is arranged along the arrangement direction of the keys 2 and the transmission holding member 12 is attached, and the hammer holding member is arranged along the arrangement direction of the keys 2. And a hammer support rail 18 to which 14 is attached, whereby the transmission holding member 12 in which a plurality of transmission holding portions 13 are integrally formed along the arrangement direction of the keys 2 is sequentially attached on the transmission support rail 17. In addition, the hammer holding member 14 in which the plurality of hammer holding portions 15 are integrally formed along the arrangement direction of the key 2 can be sequentially mounted on the hammer support rail 18, thereby simplifying the assembling work. Can be achieved.
さらに、この電子鍵盤装置のアクション機構3では、鍵2の配列方向の全長における予め定められた複数個所にそれぞれ配置され、伝達支持レール17およびハンマー支持レール18を支持する複数の支持部材20を備えていることにより、これら複数の支持部材20によって伝達支持レール17およびハンマー支持レール18を鍵2の配列方向の全長に亘って安定した状態で確実にかつ良好に梁渡すことができるので、確実にかつ良好に複数の伝達部材10および複数のハンマー部材11を取り付けることができる。
Further, the action mechanism 3 of the electronic keyboard device includes a plurality of support members 20 that are arranged at a plurality of predetermined positions in the entire length in the arrangement direction of the keys 2 and support the transmission support rail 17 and the hammer support rail 18. Therefore, the transmission support rail 17 and the hammer support rail 18 can be reliably and satisfactorily delivered in a stable state over the entire length in the arrangement direction of the keys 2 by the plurality of support members 20. And the some transmission member 10 and the some hammer member 11 can be attached favorably.
(第2実施形態)
次に、図11〜図15を参照して、この発明を電子鍵盤楽器に適用した第2実施形態について説明する。なお、図1〜図10に示された第1実施形態と同一部分には同一符号を付して説明する。
この電子鍵盤楽器は、図11〜図15に示すように、ハンマー保持部材50と伝達保持部材51とが第1実施形態と異なる構成であり、これ以外は第1実施形態とほぼ同じ構成になっている。
(Second Embodiment)
Next, a second embodiment in which the present invention is applied to an electronic keyboard instrument will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected and demonstrated to the same part as 1st Embodiment shown by FIGS.
As shown in FIGS. 11 to 15, the electronic keyboard instrument has a configuration in which a hammer holding member 50 and a transmission holding member 51 are different from those in the first embodiment, and the other configurations are almost the same as those in the first embodiment. ing.
ハンマー保持部材50は、第1実施形態と同様、ABS樹脂などの硬質の合成によって形成されている。このハンマー保持部材50は、図11〜図13に示すように、複数のハンマー保持部15それぞれに設けられたハンマー軸挿入部52が、ハンマー保持部15の下側に開放された第1ハンマー切欠き部52aと、ハンマー保持部15の上側に開放された第2ハンマー切欠き部52bとを有し、第1ハンマー切欠き部52aと第2ハンマー切欠き部52bとが複数のハンマー保持部15に交互に設けられた構成になっている。
As in the first embodiment, the hammer holding member 50 is formed by hard synthesis such as ABS resin. As shown in FIGS. 11 to 13, the hammer holding member 50 includes a first hammer cutting portion in which a hammer shaft insertion portion 52 provided in each of the plurality of hammer holding portions 15 is opened to the lower side of the hammer holding portion 15. It has a notch portion 52a and a second hammer notch portion 52b opened on the upper side of the hammer holding portion 15, and the first hammer notch portion 52a and the second hammer notch portion 52b have a plurality of hammer holding portions 15. The structure is provided alternately.
すなわち、複数のハンマー保持部15は、第1実施形態と同様、上方が開放されたレール状の本体板50aの後端部に、例えば10個程度の各鍵2に対した状態で鍵2の配列方向に沿って一体に形成されている。このハンマー保持部15は、ハンマー部材11が回転自在に取り付けられた状態で、ハンマー部材11の横振れを防ぐ軸支持部32を有している。
That is, as in the first embodiment, the plurality of hammer holding portions 15 are arranged on the rear end portion of the rail-shaped main body plate 50a whose upper side is opened, with the key 2 being in a state of about 10 keys 2, for example. It is integrally formed along the arrangement direction. The hammer holding portion 15 has a shaft support portion 32 that prevents lateral vibration of the hammer member 11 in a state where the hammer member 11 is rotatably attached.
この場合、軸支持部32は、図11および図12に示すように、ハンマー保持部材50の本体板50a上の後端部(図12では上辺部)に各伝達部材10と対応して形成された一対のガイド壁32aを有している。一対のガイド壁32aは、ハンマー部材11の後述するハンマー嵌合部37を両側から摺動可能に挟んだ状態で、ハンマー部材11のハンマー嵌合部37を回転可能にガイドするガイド部を構成している。
In this case, as shown in FIGS. 11 and 12, the shaft support portion 32 is formed at the rear end portion (upper side portion in FIG. 12) on the main body plate 50 a of the hammer holding member 50 so as to correspond to each transmission member 10. A pair of guide walls 32a. The pair of guide walls 32a constitutes a guide portion that rotatably guides the hammer fitting portion 37 of the hammer member 11 in a state where a hammer fitting portion 37 (to be described later) of the hammer member 11 is slidably sandwiched from both sides. ing.
また、これら一対のガイド壁32aには、図11〜図13に示すように、ハンマー部材11を回転可能に保持するハンマー保持軸34が挿入するハンマー軸挿入部52が互いに対応して設けられている。このハンマー軸挿入部52は、一対のガイド壁32aのうち、一方のガイド壁32aにその下方に向けて開放された第1ハンマー切欠き部52aと、他方のガイド壁32aにその上方に向けて開放された第2ハンマー切欠き部52bとを有している。
Further, as shown in FIGS. 11 to 13, the pair of guide walls 32 a are provided with hammer shaft insertion portions 52 into which the hammer holding shaft 34 that rotatably holds the hammer member 11 is inserted. Yes. The hammer shaft insertion portion 52 includes a first hammer cutout portion 52a that is opened downward from one guide wall 32a of the pair of guide walls 32a, and an upper portion toward the other guide wall 32a. And an open second hammer notch 52b.
この場合、第1ハンマー切欠き部52aは、図11〜図13に示すように、その上端部がハンマー保持軸34の外径とほぼ同じ大きさの半円形状に形成されている。第2ハンマー切欠き部52bは、その下端部がハンマー保持軸34の外径とほぼ同じ大きさの半円形状に形成されている。これら第1ハンマー切欠き部52aの上端部に位置する半円形状の中心と、第2ハンマー切欠き部52bの下端部に位置する半円形状の中心とは、同一軸上に位置するように形成されている。
In this case, as shown in FIGS. 11 to 13, the first hammer notch portion 52 a is formed in a semicircular shape having an upper end portion substantially the same as the outer diameter of the hammer holding shaft 34. The second hammer cutout portion 52 b is formed in a semicircular shape having a lower end portion substantially the same as the outer diameter of the hammer holding shaft 34. The semicircular center located at the upper end of the first hammer notch 52a and the semicircular center located at the lower end of the second hammer notch 52b are located on the same axis. Is formed.
これにより、ハンマー保持軸34は、図11および図12に示すように、その一端部がハンマー保持部材50の一方の端部側から複数のハンマー保持部15の各軸支持部32それぞれに設けられた複数のハンマー軸挿入部52における第1ハンマー切欠き部52aと第2ハンマー切欠き部52bとに順次挿入されて、ハンマー保持部材13の他方の端部に位置する軸支持部32のハンマー軸挿入部52に挿入されるように構成されている。
Accordingly, as shown in FIGS. 11 and 12, one end of the hammer holding shaft 34 is provided on each shaft support portion 32 of the plurality of hammer holding portions 15 from one end side of the hammer holding member 50. The hammer shaft of the shaft support portion 32 which is sequentially inserted into the first hammer notch portion 52a and the second hammer notch portion 52b in the plurality of hammer shaft insertion portions 52 and is located at the other end portion of the hammer holding member 13. It is configured to be inserted into the insertion portion 52.
これにより、ハンマー保持軸34は、図13(a)〜図13(d)に示すように、第1ハンマー切欠き部52aの上端部に位置する半円形状の縁部と、第2ハンマー切欠き部52bの下端部に位置する半円形状の縁部とで上下に挟まれ、この状態でハンマー保持部材50の全長に亘って配置されるように構成されている。
Thereby, as shown in FIGS. 13 (a) to 13 (d), the hammer holding shaft 34 has a semicircular edge located at the upper end of the first hammer notch 52a and the second hammer cut. It is configured so as to be sandwiched up and down with a semicircular edge located at the lower end of the notch 52b and arranged over the entire length of the hammer holding member 50 in this state.
この場合にも、ハンマー部材11は、第1実施形態と同様、そのハンマー嵌合部37がハンマー保持部15の軸支持部32の一対のガイド壁32a間に配置された状態で、一対のガイド壁32aに設けられたハンマー軸挿入部52にハンマー保持軸34を挿入する際に、そのハンマー保持軸34がハンマー部材11のハンマー嵌合孔37bに挿入することにより、ハンマー保持軸34に回転可能に取り付けられるように構成されている。
Also in this case, the hammer member 11 has a pair of guides in a state where the hammer fitting portion 37 is disposed between the pair of guide walls 32a of the shaft support portion 32 of the hammer holding portion 15 as in the first embodiment. When the hammer holding shaft 34 is inserted into the hammer shaft insertion portion 52 provided on the wall 32a, the hammer holding shaft 34 is inserted into the hammer fitting hole 37b of the hammer member 11 so that the hammer holding shaft 34 can rotate. It is comprised so that it can be attached to.
一方、伝達保持部材51は、第1実施形態と同様、ABS樹脂などの硬質の合成によって形成されている。この伝達保持部材51は、図14および図15に示すように、複数の伝達保持部13それぞれに設けられた伝達軸挿入部53が、伝達保持部13の下側に開放された第1伝達切欠き部53aと、伝達保持部13の上側に開放された第2伝達切欠き部53bとを有し、第1伝達切欠き部53aと第2伝達切欠き部53bとが複数の伝達保持部13に交互に設けられた構成になっている。
On the other hand, the transmission holding member 51 is formed by hard synthesis such as ABS resin, as in the first embodiment. As shown in FIGS. 14 and 15, the transmission holding member 51 includes a first transmission cut-off portion in which the transmission shaft insertion portions 53 provided in each of the plurality of transmission holding portions 13 are opened below the transmission holding portion 13. It has the notch part 53a and the 2nd transmission notch part 53b open | released above the transmission holding part 13, and the 1st transmission notch part 53a and the 2nd transmission notch part 53b are the some transmission holding part 13 The structure is provided alternately.
すなわち、複数の伝達保持部13は、第1実施形態と同様、上方が開放されたレール状の本体板51aの後端部に、例えば10個程度の各鍵2に対した状態で鍵2の配列方向に沿って一体に形成されている。この伝達保持部13は、伝達部材10が回転自在に取り付けられた状態で、伝達部材10の横振れを防ぐ軸支持部22を有している。
That is, as in the first embodiment, the plurality of transmission holding portions 13 are connected to the rear end portion of the rail-shaped main body plate 51a whose upper side is opened, for example, in a state where about 10 keys 2 are held against each key 2. It is integrally formed along the arrangement direction. The transmission holding portion 13 has a shaft support portion 22 that prevents lateral vibration of the transmission member 10 in a state where the transmission member 10 is rotatably attached.
この場合、軸支持部22は、図14および図15に示すように、伝達保持部材51の本体板51a上の後端部(図13では左端部)に各伝達部材10と対応して形成された一対のガイド壁22aを有している。一対のガイド壁22aは、伝達部材10の伝達嵌合部26を両側から摺動可能に挟んだ状態で、伝達部材10の伝達嵌合部26を回転可能にガイドするガイド部を構成している。
In this case, as shown in FIGS. 14 and 15, the shaft support portion 22 is formed at the rear end portion (left end portion in FIG. 13) on the main body plate 51 a of the transmission holding member 51 in correspondence with each transmission member 10. A pair of guide walls 22a. The pair of guide walls 22a constitute a guide portion that rotatably guides the transmission fitting portion 26 of the transmission member 10 in a state where the transmission fitting portion 26 of the transmission member 10 is slidably sandwiched from both sides. .
また、これら一対の一対のガイド壁22aには、図14および図15に示すように、伝達部材10を回転可能に保持する伝達保持軸24が挿入する伝達軸挿入部53が互いに対応して設けられている。この伝達軸挿入部53は、一対のガイド壁22aのうち、一方のガイド壁22aにその下方に向けて開放された第1伝達切欠き部53aと、他方のガイド壁22aにその上方に向けて開放された第2伝達切欠き部53bとを有している。
Further, as shown in FIGS. 14 and 15, the pair of guide walls 22 a are provided with transmission shaft insertion portions 53 that are inserted into the transmission holding shaft 24 that rotatably holds the transmission member 10. It has been. The transmission shaft insertion portion 53 includes a first transmission cutout portion 53a that is opened downward from one guide wall 22a of the pair of guide walls 22a, and an upper portion toward the other guide wall 22a. And an open second transmission notch 53b.
この場合、第1伝達切欠き部53aは、図14および図15に示すように、その上端部が伝達保持軸24の外径とほぼ同じ大きさの半円形状に形成されている。第2伝達切欠き部53bは、その下端部が伝達保持軸24の外径とほぼ同じ大きさの半円形状に形成されている。これら第1伝達切欠き部53aの上端部に位置する半円形状の中心と、第2伝達切欠き部53bの下端部に位置する半円形状の中心とは、同一軸上に位置するように形成されている。
In this case, as shown in FIG. 14 and FIG. 15, the first transmission notch 53 a is formed in a semicircular shape having an upper end portion substantially the same as the outer diameter of the transmission holding shaft 24. The second transmission notch 53 b is formed in a semicircular shape whose lower end is approximately the same size as the outer diameter of the transmission holding shaft 24. The semicircular center located at the upper end of the first transmission notch 53a and the semicircular center located at the lower end of the second transmission notch 53b are located on the same axis. Is formed.
これにより、伝達保持軸24は、図14に示すように、その一端部が伝達保持部材51の一方の端部側から複数の伝達保持部13の各軸支持部22それぞれに設けられた複数の伝達軸挿入部53における第1伝達切欠き部53aと第2伝達切欠き部53bとに順次挿入されて、伝達保持部材12の他方の端部に位置する軸支持部22の伝達軸挿入部53に挿入されるように構成されている。
Thereby, as shown in FIG. 14, the transmission holding shaft 24 has one end portion provided on each of the shaft support portions 22 of the plurality of transmission holding portions 13 from one end side of the transmission holding member 51. The transmission shaft insertion portion 53 of the shaft support portion 22 that is sequentially inserted into the first transmission cutout portion 53 a and the second transmission cutout portion 53 b in the transmission shaft insertion portion 53 and is located at the other end of the transmission holding member 12. It is comprised so that it may be inserted in.
これにより、伝達保持軸24は、図15(a)〜図15(d)に示すように、第1伝達切欠き部53aの上端部に位置する半円形状の縁部と、第2伝達切欠き部53bの下端部に位置する半円形状の縁部とで上下に挟まれ、この状態で伝達保持部材51の全長に亘って配置されるように構成されている。
Thereby, as shown in FIGS. 15A to 15D, the transmission holding shaft 24 includes a semicircular edge located at the upper end of the first transmission notch 53a and the second transmission cut. It is configured so as to be sandwiched up and down with the semicircular edge located at the lower end of the notch 53b and disposed over the entire length of the transmission holding member 51 in this state.
この場合にも、伝達部材10は、第1実施形態と同様、その伝達嵌合部26が伝達保持部13の軸支持部22の一対のガイド壁22a間に配置された状態で、一対のガイド壁22aに設けられた伝達軸挿入部53に伝達保持軸24が挿入される際に、その伝達保持軸24が伝達嵌合孔26bに挿入することにより、伝達保持軸24に回転可能に取り付けられるように構成されている。
Also in this case, the transmission member 10 has a pair of guides in a state where the transmission fitting portion 26 is disposed between the pair of guide walls 22a of the shaft support portion 22 of the transmission holding portion 13 as in the first embodiment. When the transmission holding shaft 24 is inserted into the transmission shaft insertion portion 53 provided on the wall 22a, the transmission holding shaft 24 is rotatably attached to the transmission holding shaft 24 by inserting the transmission holding shaft 24 into the transmission fitting hole 26b. It is configured as follows.
次に、このような電子鍵盤楽器のハンマー保持部材50と伝達保持部材51とを製作する場合について説明する。
まず、ハンマー保持部材50を製作する場合には、ハンマー成型用金型(図示せず)によって製作する。このハンマー成型用金型は、上金型と下金型とで構成されている。すなわち、上金型と下金型との分割ライン(パーティングライン)は、複数のハンマー保持部15の各軸支持部32に設けられた第1ハンマー切欠き部52aの上端部に位置する半円形状の中心と、第2ハンマー切欠き部52bの下端部に位置する半円形状の中心とが位置する個所に設置されている。
Next, a case where the hammer holding member 50 and the transmission holding member 51 of such an electronic keyboard instrument are manufactured will be described.
First, when the hammer holding member 50 is manufactured, it is manufactured by a hammer molding die (not shown). This hammer mold is composed of an upper mold and a lower mold. That is, the dividing line (parting line) between the upper mold and the lower mold is a half located at the upper end of the first hammer notch 52 a provided in each shaft support 32 of the plurality of hammer holding sections 15. The circular center and the semicircular center located at the lower end of the second hammer notch 52b are installed at the location.
これにより、上金型と下金型とを重ね合わせて、上金型と下金型との内部に形成された空洞部(キャビティ)内に樹脂を射出して充填し、この後、上金型と下金型とを分割ライン(パーティングライン)で分割して、上金型と下金型とを離型することにより、ハンマー保持部材50が成型される。このときには、スライドコアを用いずに、上金型によって第1ハンマー切欠き部52aの半円形状の中心より上側が成型され、下金型によって第2ハンマー切欠き部52bの半円形状の中心よりも下側が成型される。
Thereby, the upper mold and the lower mold are overlapped, and the resin is injected and filled in the cavity formed in the upper mold and the lower mold. The hammer holding member 50 is molded by dividing the mold and the lower mold by a dividing line (parting line) and releasing the upper mold and the lower mold. At this time, without using the slide core, the upper die is molded above the semicircular center of the first hammer notch 52a, and the semicircle center of the second hammer notch 52b is formed by the lower die. The lower side is molded.
一方、伝達保持部材51を製作する場合には、伝達成型用金型(図示せず)によって製作する。この伝達成型用金型は、上金型と下金型とで構成されている。すなわち、上金型と下金型との分割ライン(パーティングライン)は、複数の伝達保持部13の各軸支持部22に設けられた第1伝達切欠き部53aの上端部に位置する半円形状の中心と、第2伝達切欠き部53bの下端部に位置する半円形状の中心とが位置する個所に設置されている。
On the other hand, when the transmission holding member 51 is manufactured, it is manufactured by a transmission molding die (not shown). This transmission mold is composed of an upper mold and a lower mold. That is, the dividing line (parting line) between the upper mold and the lower mold is a half located at the upper end portion of the first transmission cutout portion 53a provided in each shaft support portion 22 of the plurality of transmission holding portions 13. The circular center and the semicircular center located at the lower end of the second transmission notch 53b are installed at the location.
これにより、上金型と下金型とを重ね合わせて、上金型と下金型との内部に形成された空洞部(キャビティ)内に樹脂を射出して充填し、この後、上金型と下金型とを分割ライン(パーティングライン)で分割して、上金型と下金型とを離型することにより、伝達保持部材51が成型される。このときにも、スライドコアを用いずに、上金型によって第1伝達切欠き部53aの半円形状の中心よりが上側が成型され、下金型によって第2伝達切欠き部53bの半円形状の中心よりも下側が成型される。
Thereby, the upper mold and the lower mold are overlapped, and the resin is injected and filled in the cavity formed in the upper mold and the lower mold. The transmission holding member 51 is molded by dividing the mold and the lower mold by a dividing line (parting line) and releasing the upper mold and the lower mold. Also at this time, without using the slide core, the upper mold molds the upper side of the center of the semicircular shape of the first transmission notch 53a, and the lower mold forms the semicircle of the second transmission notch 53b. The lower side of the center of the shape is molded.
次に、このような電子鍵盤楽器のアクション機構3を組み立てる場合について説明する。
まず、ハンマー部材11をハンマー保持部材50の各ハンマー保持部15に取り付ける場合には、第1実施形態と同様、ハンマー部材11のハンマー嵌合部37をハンマー保持部15の軸支持部32における一対のガイド壁32a間に順次配置する。
Next, the case where the action mechanism 3 of such an electronic keyboard instrument is assembled will be described.
First, when the hammer member 11 is attached to each hammer holding portion 15 of the hammer holding member 50, the hammer fitting portion 37 of the hammer member 11 is paired in the shaft support portion 32 of the hammer holding portion 15 as in the first embodiment. The guide walls 32a are sequentially arranged.
このときには、ハンマー部材11のハンマー嵌合部37のハンマー嵌合孔37bを、軸支持部32の一対のガイド壁32aに設けられた各ハンマー軸挿入部52に対応させる。すなわち、ハンマー部材11のハンマー嵌合孔37bの中心を、軸支持部32の第1ハンマー切欠き部52aの下端部に位置する半円形状の中心と、第2ハンマー切欠き部52bの上端部に位置する半円形状の中心とに対応させる。
At this time, the hammer fitting hole 37 b of the hammer fitting portion 37 of the hammer member 11 is made to correspond to each hammer shaft insertion portion 52 provided in the pair of guide walls 32 a of the shaft support portion 32. That is, the center of the hammer fitting hole 37b of the hammer member 11 is centered on a semicircular shape located at the lower end of the first hammer notch 52a of the shaft support portion 32 and the upper end of the second hammer notch 52b. Corresponding to the center of the semi-circular shape located at.
この状態で、ハンマー保持軸34の一端部を、ハンマー保持部材14の一方の端部側から複数のハンマー保持部15の各第1ハンマー切欠き部52aの下端部に位置する半円形状の個所と、各第2ハンマー切欠き部52bの上端部に位置する半円形状の個所とに、順次挿入すると共に、複数のハンマー部材11の各ハンマー嵌合孔37bに順次挿入する。そして、ハンマー保持軸34の一端部を、ハンマー保持部材14の他方の端部に位置する軸支持部32のハンマー軸挿入部52に挿入する。
In this state, the one end portion of the hammer holding shaft 34 is located at the lower end portion of each first hammer notch portion 52a of the plurality of hammer holding portions 15 from one end portion side of the hammer holding member 14. And sequentially inserted into the semicircular portion located at the upper end of each second hammer notch 52b, and sequentially into each hammer fitting hole 37b of the plurality of hammer members 11. Then, one end portion of the hammer holding shaft 34 is inserted into the hammer shaft insertion portion 52 of the shaft support portion 32 located at the other end portion of the hammer holding member 14.
これにより、ハンマー保持軸34は、複数のハンマー保持部15における各第1ハンマー切欠き部52aの下端部に位置する半円形状の個所と、複数のハンマー保持部15における各第2ハンマー切欠き部52bの上端部に位置する半円形状の個所とに、交互に上下方向から挟まれる。この状態で、ハンマー保持軸34がハンマー保持部材14にその鍵配列方向の全長に亘って取り付けられ、複数のハンマー部材11が鍵配列方向に沿って並列に配列された状態で、ハンマー保持軸34に回転可能に取り付けられる。
As a result, the hammer holding shaft 34 has a semicircular portion located at the lower end of each first hammer notch 52a in each of the plurality of hammer holding parts 15 and each second hammer notch in the plurality of hammer holding parts 15. It is alternately sandwiched from above and below by a semicircular portion located at the upper end of the portion 52b. In this state, the hammer holding shaft 34 is attached to the hammer holding member 14 over the entire length in the key arrangement direction, and the plurality of hammer members 11 are arranged in parallel along the key arrangement direction. Attached to be rotatable.
一方、伝達部材10を伝達保持部材51の各伝達保持部13に取り付ける場合には、第1実施形態と同様、伝達部材10の伝達嵌合部26を伝達保持部13の軸支持部22における一対のガイド壁22a間に順次配置する。このときには、伝達部材10の伝達嵌合部26の伝達嵌合孔26bを、軸支持部22の一対のガイド壁22aに設けられた各伝達軸挿入部53に対応させる。
On the other hand, when the transmission member 10 is attached to each transmission holding portion 13 of the transmission holding member 51, the transmission fitting portion 26 of the transmission member 10 is paired with the shaft support portion 22 of the transmission holding portion 13 as in the first embodiment. The guide walls 22a are sequentially arranged. At this time, the transmission fitting hole 26 b of the transmission fitting portion 26 of the transmission member 10 is made to correspond to each transmission shaft insertion portion 53 provided in the pair of guide walls 22 a of the shaft support portion 22.
すなわち、伝達部材10の伝達嵌合孔26bの中心を、軸支持部22の第1伝達切欠き部53aの下端部に位置する半円形状の中心と、第2伝達切欠き部53bの上端部に位置する半円形状の中心とに対応させる。この状態で、伝達保持軸24の一端部を、伝達保持部材51の一方の端部側から複数の伝達保持部13の各第1伝達切欠き部53aの下端部に位置する半円形状の個所と、各第2伝達切欠き部53bの上端部に位置する半円形状の個所とに、順次挿入すると共に、複数の伝達部材10の各伝達嵌合孔26bに順次挿入する。
That is, the center of the transmission fitting hole 26b of the transmission member 10 is a semicircular center located at the lower end of the first transmission notch 53a of the shaft support 22 and the upper end of the second transmission notch 53b. Corresponding to the center of the semi-circular shape located at. In this state, the one end of the transmission holding shaft 24 is located at the lower end of each first transmission notch 53a of the plurality of transmission holding parts 13 from one end side of the transmission holding member 51. And sequentially inserted into the semicircular portion located at the upper end of each second transmission notch 53b and sequentially into each transmission fitting hole 26b of the plurality of transmission members 10.
そして、伝達保持軸24の一端部を、伝達保持部材51の他方の端部に位置する軸支持部22の伝達軸挿入部53に挿入する。これにより、伝達保持軸24は、複数の伝達保持部13における各第1伝達切欠き部53aの下端部に位置する半円形状の個所と、複数の伝達保持部13における各第2伝達切欠き部53bの上端部に位置する半円形状の個所とに、交互に上下方向から挟まれる。この状態で、伝達保持軸24が伝達保持部材51にその鍵配列方向の全長に亘って取り付けられ、複数の伝達部材10が鍵配列方向に沿って並列に配列された状態で、伝達保持軸24に回転可能に取り付けられる。
Then, one end portion of the transmission holding shaft 24 is inserted into the transmission shaft insertion portion 53 of the shaft support portion 22 located at the other end portion of the transmission holding member 51. Thereby, the transmission holding shaft 24 has a semicircular portion located at the lower end of each first transmission notch 53a in each of the plurality of transmission holding parts 13, and each second transmission notch in the plurality of transmission holding parts 13. It is alternately sandwiched from above and below by a semicircular portion located at the upper end of the portion 53b. In this state, the transmission holding shaft 24 is attached to the transmission holding member 51 over the entire length in the key arrangement direction, and the transmission holding shaft 24 is arranged in a state where the plurality of transmission members 10 are arranged in parallel along the key arrangement direction. Attached to be rotatable.
このような第2実施形態の電子鍵盤楽器のアクション機構3によれば、第1実施形態と同様の作用効果があるほか、複数のハンマー保持部15それぞれに設けられたハンマー軸挿入部52が、ハンマー保持部15の下側に開放された第1ハンマー切欠き部52aと、ハンマー保持部15の上側に開放された第2ハンマー切欠き部52bとを有し、第1ハンマー切欠き部52aと第2ハンマー切欠き部52bとを複数のハンマー保持部15に交互に設けた構成であるから、複数のハンマー保持部15をハンマー成型用金型で一度に成型する際に、そのハンマー成型用金型の構造を簡素化することができ、これにより第1実施形態よりも生産性の向上および低コスト化を図ることができる。
According to the action mechanism 3 of the electronic keyboard musical instrument of the second embodiment as described above, the hammer shaft insertion portion 52 provided in each of the plurality of hammer holding portions 15 has the same effects as the first embodiment. A first hammer notch 52a opened on the lower side of the hammer holding part 15 and a second hammer notch 52b opened on the upper side of the hammer holding part 15, the first hammer notch 52a; Since the second hammer notch portions 52b are alternately provided in the plurality of hammer holding portions 15, when the plurality of hammer holding portions 15 are molded at once with a hammer molding die, the hammer molding die The structure of the mold can be simplified, thereby improving the productivity and reducing the cost as compared with the first embodiment.
すなわち、このハンマー成型用金型は、上金型と下金型との分割ライン(パーティングライン)を、複数のハンマー保持部15の各軸支持部32に設けられた第1ハンマー切欠き部52aの上端部に位置する半円形状の中心と、第2ハンマー切欠き部52bの下端部に位置する半円形状の中心とが位置する個所に、設置することができるので、スライドコアを用いずに、上金型によって第1ハンマー切欠き部52aの半円形状の中心より上側を成型することができ、下金型によって第2ハンマー切欠き部52bの半円形状の中心よりも下側を成型することができる。
That is, in this hammer molding die, a first hammer notch portion provided on each shaft support portion 32 of the plurality of hammer holding portions 15 with a dividing line (parting line) between the upper die and the lower die. Since a semicircular center located at the upper end of 52a and a semicircular center located at the lower end of the second hammer notch 52b can be installed, a slide core is used. In addition, the upper mold can mold the upper side from the semicircular center of the first hammer notch 52a, and the lower mold lower than the semicircular center of the second hammer notch 52b. Can be molded.
また、この第2実施形態の電子鍵盤楽器のアクション機構3によれば、複数の伝達保持部13それぞれに設けられた伝達軸挿入部53が、伝達保持部13の下側に開放された第1伝達切欠き部53aと、伝達保持部13の上側に開放された第2伝達切欠き部53bとを有し、第1伝達切欠き部53aと第2伝達切欠き部53bとを複数の伝達保持部13に交互に設けた構成であるから、複数の伝達保持部13を伝達成型用金型で一度に成型する際に、その伝達成型用金型の構造を簡素化することができ、これにより第12実施形態よりも生産性の向上および低コスト化を図ることができる。
Further, according to the action mechanism 3 of the electronic keyboard instrument of the second embodiment, the transmission shaft insertion portion 53 provided in each of the plurality of transmission holding portions 13 is opened to the lower side of the transmission holding portion 13. It has a transmission notch 53a and a second transmission notch 53b opened above the transmission holding part 13, and has a plurality of transmission holds for the first transmission notch 53a and the second transmission notch 53b. Since the structure is provided alternately in the portion 13, when the plurality of transmission holding portions 13 are molded at once with the transmission molding die, the structure of the transmission molding die can be simplified. Productivity can be improved and costs can be reduced as compared with the twelfth embodiment.
すなわち、この伝達成型用金型は、上金型と下金型との分割ライン(パーティングライン)を、複数の伝達保持部13の各軸支持部22に設けられた第1伝達切欠き部53aの上端部に位置する半円形状の中心と、第2伝達切欠き部53bの下端部に位置する半円形状の中心とが位置する個所に、設置することができるので、スライドコアを用いずに、上金型によって第1伝達切欠き部53aの半円形状の中心より上側を成型することができ、下金型によって第2伝達切欠き部53bの半円形状の中心よりも下側を成型することができる。
That is, in this transmission molding die, the first transmission notch portion provided on each shaft support portion 22 of the plurality of transmission holding portions 13 is divided lines (parting lines) between the upper die and the lower die. Since a semi-circular center located at the upper end of 53a and a semi-circular center located at the lower end of the second transmission notch 53b can be installed, a slide core is used. In addition, the upper mold can mold the upper side of the semicircular center of the first transmission notch 53a, and the lower mold can lower the semicircular center of the second transmission notch 53b. Can be molded.
なお、上述した第2実施形態では、複数のハンマー保持部15それぞれにおける一対のガイド壁32aのうち、一方のガイド壁32aにハンマー軸挿入部52の第1ハンマー切欠き部52aを設け、他方のガイド壁32aにハンマー軸挿入部52の第2ハンマー切欠き部52bを設けた構成である場合について述べたが、これに限らず、複数のハンマー保持部15のうち、互いに隣接するハンマー保持部15ごとに第1ハンマー切欠き部52aと第2ハンマー切欠き部52bとを交互に設けた構成であっても良い。
In the second embodiment described above, of the pair of guide walls 32a in each of the plurality of hammer holding portions 15, the first hammer notch 52a of the hammer shaft insertion portion 52 is provided on one guide wall 32a, and the other Although the case where the second hammer notch portion 52b of the hammer shaft insertion portion 52 is provided on the guide wall 32a has been described, the present invention is not limited thereto, and the hammer holding portions 15 adjacent to each other among the plurality of hammer holding portions 15 are described. Alternatively, the first hammer notch 52a and the second hammer notch 52b may be alternately provided.
同様に、上述した第2実施形態では、複数の伝達保持部13それぞれにおける一対のガイド壁22aのうち、一方のガイド壁22aに伝達軸挿入部53の第1伝達切欠き部53aを設け、他方のガイド壁22aに伝達軸挿入部53の第2伝達切欠き部53bを設けた構成である場合について述べたが、これに限らず、複数の伝達保持部13のうち、互いに隣接する伝達保持部13ごとに第1伝達切欠き部53aと第2伝達切欠き部53bとを交互に設けた構成であっても良い。
Similarly, in 2nd Embodiment mentioned above, the 1st transmission notch part 53a of the transmission shaft insertion part 53 is provided in one guide wall 22a among a pair of guide walls 22a in each of the some transmission holding | maintenance part 13, and the other The guide wall 22a is provided with the second transmission notch 53b of the transmission shaft insertion portion 53. However, the present invention is not limited to this, and among the plurality of transmission holding portions 13, the transmission holding portions adjacent to each other. The configuration may be such that the first transmission notch 53a and the second transmission notch 53b are alternately provided for every thirteen.
また、上述した第1、第2の各実施形態では、ハンマー部材11をハンマー保持軸34によってハンマー保持部材14、50に保持し、伝達部材10を伝達保持軸24によって伝達保持部材12、51に保持した場合について述べたが、必ずしも伝達部材10は伝達保持軸24によって伝達保持部材12、51に保持される必要はなく、他の構造で伝達部材10を伝達保持部材12、51に保持するように構成しても良い。
In each of the first and second embodiments described above, the hammer member 11 is held on the hammer holding members 14 and 50 by the hammer holding shaft 34, and the transmission member 10 is transferred to the transmission holding members 12 and 51 by the transmission holding shaft 24. Although the transmission member 10 is not necessarily held by the transmission holding members 12 and 51 by the transmission holding shaft 24, the transmission member 10 is held by the transmission holding members 12 and 51 in another structure. You may comprise.
また、上述した第1、第2の各実施形態では、伝達支持レール17とハンマー支持レール18とが鍵2の配列方向の全長に亘る長さに形成されている場合について述べたが、これに限らず、例えば伝達支持レールとハンマー支持レールとをそれぞれ複数に分割して鍵2の配列方向の全長に亘って配置するように構成して良い。
In each of the first and second embodiments described above, the transmission support rail 17 and the hammer support rail 18 are described as having a length extending over the entire length of the key 2 in the arrangement direction. For example, the transmission support rail and the hammer support rail may be divided into a plurality of parts and arranged over the entire length in the arrangement direction of the keys 2.
この場合、伝達支持レールとハンマー支持レールとを複数の支持部材20の配置間隔ごとに4つに分割しても良く、また鍵2の配列方向における全長の半分に分割しても良く、さらに3つに分割しても良い。また、同様に、下限ストッパレール39と上限ストッパレール41も、複数の支持部材20の配置間隔ごとに4つに分割しても良く、また鍵2の配列方向における全長の半分に分割しても良く、さらに3つに分割しても良い。
In this case, the transmission support rail and the hammer support rail may be divided into four at every arrangement interval of the plurality of support members 20, or may be divided into half of the total length in the arrangement direction of the keys 2. It may be divided into two. Similarly, the lower limit stopper rail 39 and the upper limit stopper rail 41 may be divided into four at intervals of arrangement of the plurality of support members 20 or may be divided into half of the total length in the arrangement direction of the keys 2. It may be further divided into three.
さらに、上述した第1、第2の各実施形態では、伝達保持部材12、51に複数の伝達保持部13を10個程度の鍵2にそれぞれ対応させて一体に形成し、ハンマー保持部材14、50に複数のハンマー保持部15を10個程度の鍵2にそれぞれ対応させて一体に形成した場合について述べたが、これに限らず、例えば複数の伝達保持部13および複数のハンマー保持部15をそれぞれ20個程度の鍵2にそれぞれ対応させて一体に形成しても良く、またこれらに限らず、5個程度の各鍵2に対応するように一体に形成しても良く、その数は自由に選択して一体に形成しても良い。
Furthermore, in each of the first and second embodiments described above, a plurality of transmission holding portions 13 are formed integrally with the transmission holding members 12 and 51 so as to correspond to about ten keys 2, respectively. Although the case where the plurality of hammer holding portions 15 are integrally formed corresponding to about 10 keys 2 is described in FIG. 50, the present invention is not limited to this. For example, a plurality of transmission holding portions 13 and a plurality of hammer holding portions 15 are provided. Each of them may be integrally formed to correspond to about 20 keys 2, and is not limited thereto, and may be formed integrally to correspond to about 5 keys 2, and the number thereof is free. It may be selected and formed integrally.
以上、この発明のいくつか実施形態について説明したが、この発明は、これらに限られるものではなく、特許請求の範囲に記載された発明とその均等の範囲を含むものである。
以下に、本願の特許請求の範囲に記載された発明を付記する。
As mentioned above, although several embodiment of this invention was described, this invention is not restricted to these, The invention described in the claim and its equal range are included.
The invention described in the claims of the present application will be appended below.
(付記)
請求項1に記載の発明は、並列に配列された複数の鍵と、前記複数の鍵それぞれに対応して配置され、当該複数の鍵それぞれの押鍵操作に応じて回転動作する複数の伝達部材と、前記複数の伝達部材それぞれに対応して配置され、押鍵操作に対応する前記伝達部材の回転動作に応じて回転動作することにより、押鍵操作されている前記鍵に対してアクション荷重を付与する複数のハンマー部材と、前記複数のハンマー部材それぞれを保持するために、前記複数の鍵の配列方向に沿って一体に形成された複数のハンマー保持部と、前記複数のハンマー保持部それぞれに対応して設けられたハンマー軸挿入部と、を有するハンマー保持部材と、前記ハンマー軸挿入部に挿入され、前記複数のハンマー部材それぞれが回転動作可能に取り付けられるハンマー保持軸と、を備えていることを特徴とする鍵盤装置のアクション機構である。
(Appendix)
The invention according to claim 1 is a plurality of keys arranged in parallel, and a plurality of transmission members arranged corresponding to each of the plurality of keys and rotating in response to a key pressing operation of each of the plurality of keys. And an action load applied to the key being pressed by rotating according to the rotation of the transmission member corresponding to the key pressing operation. A plurality of hammer members to be applied, a plurality of hammer holding portions integrally formed along the arrangement direction of the plurality of keys to hold each of the plurality of hammer members, and each of the plurality of hammer holding portions A hammer holding member having a correspondingly provided hammer shaft insertion portion, and inserted into the hammer shaft insertion portion, and each of the plurality of hammer members is attached to be rotatable. It is an action mechanism of the keyboard apparatus according to claim which comprises a Nma holding shaft, a.
請求項2に記載の発明は、並列に配列された複数の鍵と、前記複数の鍵それぞれに対応して配置され、当該複数の鍵それぞれの押鍵操作に応じて回転動作する複数の伝達部材と、前記複数の伝達部材それぞれに対応して配置され、押鍵操作に対応する前記伝達部材の回転動作に応じて回転動作することにより、押鍵操作されている前記鍵に対してアクション荷重を付与する複数のハンマー部材と、前記複数の伝達部材それぞれを保持するために、前記複数の鍵の配列方向に沿って一体に形成された複数の伝達保持部と、前記複数の伝達保持部それぞれに対応して設けられた伝達軸挿入部と、を有する伝達保持部材と、前記伝達軸挿入部に挿入され、前記複数の伝達部材それぞれが回転動作可能に取り付けられる伝達保持軸と、を備えていることを特徴とする鍵盤装置のアクション機構である。
The invention according to claim 2 is a plurality of keys arranged in parallel, and a plurality of transmission members arranged corresponding to each of the plurality of keys and rotating in response to a key pressing operation of each of the plurality of keys. And an action load applied to the key being pressed by rotating according to the rotation of the transmission member corresponding to the key pressing operation. In order to hold each of the plurality of hammer members to be applied and the plurality of transmission members, a plurality of transmission holding portions integrally formed along the arrangement direction of the plurality of keys, and each of the plurality of transmission holding portions A transmission holding member having a corresponding transmission shaft insertion portion, and a transmission holding shaft that is inserted into the transmission shaft insertion portion and is attached to each of the plurality of transmission members so as to be rotatable. This It is an action mechanism of the keyboard device according to claim.
請求項3に記載の発明は、請求項1に記載の鍵盤装置のアクション機構において、前記複数のハンマー部材それぞれは、前記ハンマー保持軸が挿入するハンマー嵌合孔が設けられたハンマー嵌合部を有し、前記複数のハンマー保持部それぞれは、前記ハンマー嵌合部が挿入する一対のガイド壁を有し、これら一対のガイド壁に前記ハンマー軸挿入部が同一軸上に設けられていることを特徴とする鍵盤装置のアクション機構である。
According to a third aspect of the present invention, in the action mechanism of the keyboard device according to the first aspect, each of the plurality of hammer members has a hammer fitting portion provided with a hammer fitting hole into which the hammer holding shaft is inserted. Each of the plurality of hammer holding portions has a pair of guide walls into which the hammer fitting portion is inserted, and the hammer shaft insertion portions are provided on the same axis in the pair of guide walls. It is the action mechanism of the keyboard device characterized.
請求項4に記載の発明は、請求項1または請求項3に記載の鍵盤装置のアクション機構において、前記複数のハンマー保持部それぞれに設けられた前記ハンマー軸挿入部は、前記ハンマー保持部の下側に開放された第1ハンマー切欠き部と、前記ハンマー保持部の上側に開放された第2ハンマー切欠き部とを有し、前記第1ハンマー切欠き部と前記第2ハンマー切欠き部とが前記複数のハンマー保持部に交互に設けられていることを特徴とする鍵盤装置のアクション機構である。
According to a fourth aspect of the present invention, in the action mechanism of the keyboard device according to the first or third aspect, the hammer shaft insertion portion provided in each of the plurality of hammer holding portions is below the hammer holding portion. A first hammer notch portion opened to the side, and a second hammer notch portion opened to the upper side of the hammer holding portion; the first hammer notch portion and the second hammer notch portion; Is an action mechanism of a keyboard device, wherein the plurality of hammer holding portions are alternately provided.
請求項5に記載の発明は、請求項2に記載の鍵盤装置のアクション機構において、前記複数の伝達部材それぞれは、前記伝達保持軸が挿入する伝達嵌合孔が設けられた伝達嵌合部を有し、前記複数の伝達保持部それぞれは、前記伝達嵌合部が挿入する一対のガイド壁を有し、これら一対のガイド壁に前記伝達軸挿入部が同一軸上に設けられていることを特徴とする鍵盤装置のアクション機構である。
According to a fifth aspect of the present invention, in the action mechanism of the keyboard device according to the second aspect, each of the plurality of transmission members includes a transmission fitting portion provided with a transmission fitting hole into which the transmission holding shaft is inserted. Each of the plurality of transmission holding portions has a pair of guide walls into which the transmission fitting portion is inserted, and the transmission shaft insertion portions are provided on the same axis in the pair of guide walls. It is the action mechanism of the keyboard device characterized.
請求項6に記載の発明は、請求項2または請求項5に記載の鍵盤装置のアクション機構において、前記複数の伝達保持部それぞれに設けられた前記伝達軸挿入部は、前記伝達保持部の下側に開放された第1伝達切欠き部と、前記伝達保持部の上側に開放された第2伝達切欠き部とを有し、前記第1伝達切欠き部と前記第2伝達切欠き部とが前記複数の伝達保持部に交互に設けられていることを特徴とする鍵盤装置のアクション機構である。
The invention according to claim 6 is the action mechanism of the keyboard device according to claim 2 or 5, wherein the transmission shaft insertion portion provided in each of the plurality of transmission holding portions is below the transmission holding portion. A first transmission cutout portion opened to the side, and a second transmission cutout portion opened above the transmission holding portion, the first transmission cutout portion and the second transmission cutout portion, Is an action mechanism of a keyboard device, wherein the plurality of transmission holding portions are alternately provided.
請求項7に記載の発明は、請求項1〜請求項6のいずれかに記載された鍵盤装置のアクション機構を備えていることを特徴とする鍵盤楽器である。
The invention described in claim 7 is a keyboard instrument comprising the action mechanism of the keyboard device described in any one of claims 1 to 6.