JP6044759B2 - Keyboard instrument - Google Patents

Keyboard instrument Download PDF

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JP6044759B2
JP6044759B2 JP2012156276A JP2012156276A JP6044759B2 JP 6044759 B2 JP6044759 B2 JP 6044759B2 JP 2012156276 A JP2012156276 A JP 2012156276A JP 2012156276 A JP2012156276 A JP 2012156276A JP 6044759 B2 JP6044759 B2 JP 6044759B2
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lid
sound
keyboard
sound emitting
instrument case
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JP2014021141A (en
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巌 富田
巌 富田
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Casio Computer Co Ltd
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Casio Computer Co Ltd
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Description

この発明は、電子ピアノや電子オルガンなどの鍵盤楽器に関する。   The present invention relates to a keyboard instrument such as an electronic piano or an electronic organ.

例えば、電子鍵盤楽器においては、特許文献1に記載されているように、前部側が上方に開放された楽器ケース内に鍵盤部を設けると共に、この鍵盤部を覆う鍵盤蓋を開閉可能に設け、この楽器ケースの下面にスピーカを上向きに取り付け、このスピーカで発生した音を楽器ケース内から楽器ケースの前側に向けて放音するように構成されたものが知られている。   For example, in an electronic keyboard instrument, as described in Patent Document 1, a keyboard portion is provided in a musical instrument case whose front side is opened upward, and a keyboard lid that covers the keyboard portion is provided so as to be openable and closable. It is known that a speaker is mounted on the lower surface of the instrument case so that sound generated by the speaker is emitted from the instrument case toward the front side of the instrument case.

特開2011−28034号公報JP 2011-28034 A

このような電子鍵盤楽器における鍵盤部は、楽器ケース内に配置された鍵盤シャーシと、この鍵盤シャーシ上に上下方向に回転可能な状態で並列に配列された複数の鍵とを備え、この複数の鍵の各隙間を通してスピーカの音が楽器ケースの前側に向けて放音されるように構成されている。   The keyboard portion in such an electronic keyboard instrument includes a keyboard chassis disposed in the instrument case, and a plurality of keys arranged in parallel in a vertically rotatable manner on the keyboard chassis. The sound of the speaker is emitted toward the front side of the instrument case through each gap of the key.

また、鍵盤蓋は、前蓋と後蓋とが蝶番で折り曲げ可能に連結され、蓋ガイド部によってガイドされるように構成されている。この場合、蓋ガイド部は、鍵盤蓋が鍵盤部を上側に開放した際に、前蓋と後蓋とを蝶番で折り曲げて、後蓋を鍵盤部の後部に接近させた状態で配置させるように構成されている。   Further, the keyboard lid is configured such that the front lid and the rear lid are connected to each other so as to be bent by a hinge and guided by the lid guide portion. In this case, when the keyboard lid opens the keyboard portion upward, the lid guide portion is arranged such that the front lid and the rear lid are bent with a hinge and the rear lid is brought close to the rear portion of the keyboard portion. It is configured.

これにより、この電子鍵盤楽器では、鍵盤蓋が鍵盤部を上側に開放した際に、前蓋が楽器ケースの上部に僅かな隙間をもって接近すると共に、後蓋が楽器ケースの後部に僅かな隙間をもって接近し、これらの隙間を通してスピーカの音が楽器ケースの前側に向けて放音されるように構成されている。   Thus, in this electronic keyboard instrument, when the keyboard cover opens the keyboard part upward, the front cover approaches the upper part of the instrument case with a slight gap, and the rear cover has a slight gap at the rear part of the instrument case. The sound of the speaker is emitted toward the front side of the instrument case through these gaps.

しかしながら、このような電子鍵盤楽器では、スピーカで発生した音が楽器ケースの内部を通して楽器ケースの前側に向けて放音される際に、鍵盤部における複数の鍵の各隙間、および後蓋と楽器ケースの後部との僅かな隙間、並びに前蓋と楽器ケースの上部との僅かな隙間を通して、スピーカの音が楽器ケースの前側に向けて放音される構成であるから、スピーカの音を効率良く、かつ良好に放音させることができないという問題がある。   However, in such an electronic keyboard instrument, when the sound generated by the speaker is emitted toward the front side of the instrument case through the inside of the instrument case, each gap between the plurality of keys in the keyboard part, and the back lid and the instrument The speaker sound is emitted toward the front side of the instrument case through a slight gap with the rear part of the case and a slight gap between the front lid and the upper part of the instrument case. In addition, there is a problem that sound cannot be emitted satisfactorily.

また、この電子鍵盤楽器では、スピーカで発生した音を楽器ケース内を通して楽器ケースの前側に向けて放音することができても、スピーカで発生した音を楽器ケースの前後方向に選択して放音することができないため、例えばコンサートなどで演奏する際に、その演奏音を聴衆者側である楽器ケースの後部側に向けて効率良く、かつ良好に放音させることができないという問題もある。   Also, with this electronic keyboard instrument, even if the sound generated by the speaker can be emitted through the instrument case toward the front side of the instrument case, the sound generated by the speaker is selected and released in the front-rear direction of the instrument case. For example, when performing at a concert or the like, there is also a problem that the performance sound cannot be efficiently and satisfactorily emitted toward the rear side of the musical instrument case which is the audience side.

この発明が解決しようとする課題は、スピーカの音を効率良く、かつ良好に放音させることができる鍵盤楽器を提供することである。   The problem to be solved by the present invention is to provide a keyboard instrument that can emit sound from a speaker efficiently and satisfactorily.

この発明は、内部に鍵盤部が配置される楽器ケースと、前記楽器ケース内における前記鍵盤部の後方に配置されたスピーカと、前記スピーカで発生した音を放音するための第一放音孔と、前記楽器ケース上に開閉可能に保持され、かつ閉状態において前記スピーカで発生した音を放音するための第二放音孔を塞ぐ放音蓋と、この放音蓋を前記楽器ケースの前方向および後方向のいずれかに向けて選択的に開放する開放選択部と、を備えていることを特徴とする鍵盤楽器である。 The present invention includes a musical instrument case in which a keyboard portion is disposed, a speaker disposed behind the keyboard portion in the musical instrument case, and a first sound emitting hole for emitting sound generated by the speaker. When the is openably held on the musical instrument case, and a sound emitting lid for closing the second sound emission hole for sound the sound generated by the speaker in the closed state, the sound emitting lid of the musical instrument case A keyboard instrument comprising: an opening selection unit that selectively opens in either a forward direction or a backward direction.

この発明によれば、楽器ケースの上部に設けられた放音孔を通して楽器ケース内に設けられたスピーカの音を楽器ケースの外部に良好に放音することができると共に、放音孔を塞ぐ放音蓋を開放選択部によって楽器ケースの前後方向における少なくとも一方側に向けて開放することができるので、スピーカの音を楽器ケースの前側と後側との少なくともいずれかの方向に選択して放音することができる。これにより、スピーカの音を効率良く、かつ良好に放音させることができる。   According to the present invention, the sound of the speaker provided in the musical instrument case can be favorably emitted to the outside of the musical instrument case through the sound emission hole provided in the upper part of the musical instrument case, and the sound emission that closes the sound emission hole. Since the sound cover can be opened toward at least one side in the front-rear direction of the instrument case by the opening selection unit, the sound of the speaker is selected and emitted in at least one of the front side and the rear side of the instrument case. can do. Thereby, the sound of a speaker can be emitted efficiently and satisfactorily.

この発明を電子鍵盤楽器に適用した第1実施形態を示した断面図である。It is sectional drawing which showed 1st Embodiment which applied this invention to the electronic keyboard instrument. 図1に示された電子鍵盤楽器において、鍵盤蓋を開いて演奏する際に、放音蓋を前上りに傾斜させて開いた状態を示した断面図である。FIG. 2 is a cross-sectional view showing a state in which the sound emission lid is opened to be tilted forward when the keyboard lid is opened and played in the electronic keyboard instrument shown in FIG. 1. 図1に示された電子鍵盤楽器において、鍵盤蓋を開いて演奏する際に、放音蓋を後上りに傾斜させて開いた状態を示した断面図である。FIG. 2 is a cross-sectional view showing a state in which the sounding lid is opened to be tilted rearward and upward when performing with the keyboard lid opened in the electronic keyboard instrument shown in FIG. 1. 図1に示された電子鍵盤楽器における開放選択部の一部を分解して示した要部の拡大断面図である。FIG. 2 is an enlarged cross-sectional view of a main part in which a part of an open selection unit in the electronic keyboard instrument shown in FIG. 1 is disassembled. この発明を電子鍵盤楽器に適用した第2実施形態において、放音蓋を後部上りに開放させた状態を示した要部の断面図である。In 2nd Embodiment which applied this invention to the electronic keyboard instrument, it is sectional drawing of the principal part which showed the state which open | released the sound emission lid | cover in the back part raising. 図5に示された開放選択部における前側支持部材と後側支持部材とを示した要部の拡大断面図である。FIG. 6 is an enlarged cross-sectional view of a main part showing a front support member and a rear support member in the open selection portion shown in FIG. 5. 図6に示された開放選択部における前側支持部材と後側支持部材との小径のパイプの一部または軸部の一部を示した要部の拡大斜視図である。FIG. 7 is an enlarged perspective view of a main part showing a part of a small-diameter pipe or a part of a shaft part of the front support member and the rear support member in the open selection part shown in FIG. 6. この発明を電子鍵盤楽器に適用した第3実施形態において、放音蓋を前部上りに開放させた状態を示した要部の断面図である。In 3rd Embodiment which applied this invention to the electronic keyboard musical instrument, it is sectional drawing of the principal part which showed the state which open | released the sound emission cover to the front part up. この発明を電子鍵盤楽器に適用した第4実施形態において、放音蓋を前後両方に開放させた状態を示した要部の断面図である。In 4th Embodiment which applied this invention to the electronic keyboard musical instrument, it is sectional drawing of the principal part which showed the state which open | released the sound emission lid | cover both forward and backward.

(第1実施形態)
以下、図1〜図4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〜図3に示すように、楽器ケース1を備えている。この楽器ケース1は、前側上部(図1では左側上部)が開放された横長のほぼ箱形状に形成されている。
(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.
This electronic keyboard instrument includes a musical instrument case 1 as shown in FIGS. The musical instrument case 1 is formed in a horizontally long, substantially box shape with the front upper part (left upper part in FIG. 1) open.

すなわち、この楽器ケース1は、図1〜図3に示すように、底板2と、この底板2の前端部(図1では左端部)に起立して設けられた前板3と、底板2の後端部(図1では右端部)に起立して設けられた後板4と、底板2の左右両側部(図1では紙面の表裏面の両側部)に起立して設けられた一対の側板5と、この一対の側板および後板4の上部に配置された天板6とを備えている。   That is, as shown in FIGS. 1 to 3, the musical instrument case 1 includes a bottom plate 2, a front plate 3 erected on the front end portion (left end portion in FIG. 1) of the bottom plate 2, and the bottom plate 2. A rear plate 4 provided upright at the rear end portion (right end portion in FIG. 1) and a pair of side plates provided upright on both left and right side portions of the bottom plate 2 (in FIG. 1, both side portions on the front and back surfaces of the paper) 5 and a top plate 6 disposed above the pair of side plates and the rear plate 4.

この場合、前板3は、図1〜図3に示すように、後板4の高さのほぼ半分程度の高さで形成されている。また、一対の側板5は、その前端部が前板3よりも少し高く形成され、前後方向(図1では左右方向)におけるほぼ中間部から後部側が後板4と同じ高さで形成され、前端部から中間部に向けて後部上がりに傾斜する傾斜部5aに形成されている。   In this case, as shown in FIGS. 1 to 3, the front plate 3 is formed with a height that is approximately half the height of the rear plate 4. Further, the pair of side plates 5 has a front end portion formed slightly higher than the front plate 3, and a substantially intermediate portion in the front-rear direction (left-right direction in FIG. 1) and a rear portion side formed at the same height as the rear plate 4. It is formed in the inclined part 5a which inclines rearward toward the intermediate part from the part.

天板6は、図1〜図3に示すように、前天板7と後天板8とを備えている。この場合、前天板7は、一対の側板5の後部における前側上部に配置されている。後天板8は、一対の側板5の後部における後側上部と後板4の上部とに前天板7よりも一段低い位置に配置されている。これにより、楽器ケース1は、一対の側板5の各傾斜部5aに対応する前部側が上方に開放された横長のほぼ箱形状に形成されている。   As shown in FIGS. 1 to 3, the top plate 6 includes a front top plate 7 and a rear top plate 8. In this case, the front top plate 7 is disposed on the front upper portion of the rear portion of the pair of side plates 5. The rear top plate 8 is disposed at a position one step lower than the front top plate 7 on the rear upper portion in the rear portion of the pair of side plates 5 and the upper portion of the rear plate 4. Thereby, the musical instrument case 1 is formed in a horizontally long, substantially box shape in which the front side corresponding to each inclined portion 5a of the pair of side plates 5 is opened upward.

この楽器ケース1内には、図1〜図3に示すように、鍵盤部10が設けられている。この鍵盤部10は、楽器ケース1の底板2上に配置された鍵盤シャーシ11と、この鍵盤シャーシ11上に上下方向に回転可能な状態で並列に配列された複数の鍵12とを備えている。この鍵盤部10は、複数の鍵12が楽器ケース1の前部側から上方に露呈した状態で、押鍵操作されるように構成されている。   As shown in FIGS. 1 to 3, a keyboard portion 10 is provided in the instrument case 1. The keyboard unit 10 includes a keyboard chassis 11 disposed on the bottom plate 2 of the musical instrument case 1 and a plurality of keys 12 arranged in parallel on the keyboard chassis 11 so as to be rotatable in the vertical direction. . The keyboard unit 10 is configured such that a key is pressed in a state where a plurality of keys 12 are exposed upward from the front side of the musical instrument case 1.

また、この楽器ケース1内には、図1〜図3に示すように、コンソールパネル9が鍵盤部10の後部に位置する上側から天板6の前部の下側に向けて傾斜して設けられている。また、この楽器ケース1内には、鍵盤部10の上側を覆う鍵盤蓋13が蓋ガイド部14によって開閉可能に設けられている。この鍵盤蓋13は、前蓋15と後蓋16とを有し、この前蓋15と後蓋16とが蝶番17によって折り曲げ可能に連結された構成になっている。   1 to 3, the console panel 9 is provided so as to be inclined from the upper side located at the rear part of the keyboard part 10 toward the lower part of the front part of the top plate 6. It has been. In the musical instrument case 1, a keyboard lid 13 that covers the upper side of the keyboard portion 10 is provided by a lid guide portion 14 so as to be opened and closed. The keyboard lid 13 includes a front lid 15 and a rear lid 16, and the front lid 15 and the rear lid 16 are connected to each other by a hinge 17 so as to be bent.

この場合、前蓋15の前端部には、図1〜図3に示すように、ガイド軸15aが一対の側板5の内面に向けて突出して設けられている。また、後蓋16の前端部には、ガイド軸16aが一対の側板5の内面に向けて突出して設けられている。この後蓋16の後端部には、軸取付板16bが取り付けられており、この軸取付板16bには、ピニオンギア16cが回転可能に取り付けられている。   In this case, a guide shaft 15 a is provided at the front end portion of the front lid 15 so as to protrude toward the inner surfaces of the pair of side plates 5 as shown in FIGS. 1 to 3. Further, a guide shaft 16 a is provided at the front end portion of the rear lid 16 so as to protrude toward the inner surfaces of the pair of side plates 5. A shaft mounting plate 16b is attached to the rear end portion of the rear lid 16, and a pinion gear 16c is rotatably attached to the shaft mounting plate 16b.

蓋ガイド部14は、図1〜図3に示すように、鍵盤蓋13が鍵盤部10の上側を覆った際に前蓋15と後蓋16とをほぼ平板状に配置し、かつ鍵盤蓋13が鍵盤部10を上側に開放した際に前蓋15と後蓋16とを蝶番17で折り曲げて鍵盤部10の後部に接近させた状態で配置させるように構成されている。この場合、蓋ガイド部14は、ガイドレール部18とガイド部材19とを有している。   As shown in FIGS. 1 to 3, the lid guide portion 14 has a front lid 15 and a rear lid 16 arranged in a substantially flat shape when the keyboard lid 13 covers the upper side of the keyboard portion 10, and the keyboard lid 13. However, when the keyboard part 10 is opened upward, the front lid 15 and the rear lid 16 are folded by a hinge 17 so as to be placed in a state of being close to the rear part of the keyboard part 10. In this case, the lid guide part 14 includes a guide rail part 18 and a guide member 19.

ガイドレール部18は、図1〜図3に示すように、一対の側板5の内面に前板3の上側からコンソールパネル9の上側を経て後板4に向けて斜め上方に傾斜して設けられ、鍵盤蓋13の前蓋15のガイド軸15aと後蓋16のガイド軸16aとをそれぞれガイドするように構成されている。これにより、ガイドレール部18は、図1に示すように、前蓋15と後蓋16とが鍵盤部10の上側を覆った際に、前蓋15と後蓋16とを前下りに傾斜させた状態で平板状に配置するように構成されている。   As shown in FIGS. 1 to 3, the guide rail portion 18 is provided on the inner surface of the pair of side plates 5 so as to be inclined obliquely upward from the upper side of the front plate 3 toward the rear plate 4 through the upper side of the console panel 9. The guide shaft 15a of the front cover 15 of the keyboard cover 13 and the guide shaft 16a of the rear cover 16 are respectively guided. Thereby, as shown in FIG. 1, when the front lid 15 and the rear lid 16 cover the upper side of the keyboard portion 10, the guide rail portion 18 tilts the front lid 15 and the rear lid 16 forward and downward. It is comprised so that it may arrange | position in flat form in the state.

ガイド部材19は、図1〜図3に示すように、鍵盤部10の後端部の上部付近に位置する箇所の側板5の内面に設けられた支持軸20と、この支持軸20に回転自在に取り付けられたアーム部21と、このアーム部21の先端と後蓋16のピニオンギア16cとを連結する連結軸22と、側板5に支持軸20を中心とする円弧状に設けられて連結軸22をガイドするガイド溝部23と、後蓋16のピニオンギア16cが噛み合って回転移動する半円形状のガイド歯車部24とを備えている。   As shown in FIGS. 1 to 3, the guide member 19 has a support shaft 20 provided on the inner surface of the side plate 5 at a location near the upper portion of the rear end of the keyboard portion 10, and the support shaft 20 is freely rotatable. A connecting shaft 22 that connects the front end of the arm portion 21 and the pinion gear 16c of the rear lid 16, and a connecting shaft that is provided on the side plate 5 in an arc shape centered on the support shaft 20. 22 and a semi-circular guide gear portion 24 that rotates with the pinion gear 16c of the rear lid 16 meshing with the guide groove portion 23.

これにより、蓋ガイド部14は、図1に示すように、鍵盤蓋13の前蓋15と後蓋16とが鍵盤部10の上側を覆って閉じた際に、前蓋15のガイド軸15aがガイドレール部18の前端部に位置し、後蓋16のガイド軸16aがガイドレール部18の中間部に位置し、後蓋16の後端部に位置する連結軸22がガイド溝部23の上端部に位置し、かつピニオンギア16cがガイド歯車部24の上端部に位置することにより、前蓋15と後蓋16とを前下がりに傾斜させた状態で平板状に配置するように構成されている。   Thereby, as shown in FIG. 1, when the front lid 15 and the rear lid 16 of the keyboard lid 13 cover the upper side of the keyboard portion 10 and the lid 15 is closed, the guide shaft 15 a of the front lid 15 Located at the front end of the guide rail portion 18, the guide shaft 16 a of the rear lid 16 is located at the middle portion of the guide rail portion 18, and the connecting shaft 22 located at the rear end portion of the rear lid 16 is the upper end portion of the guide groove portion 23. And the pinion gear 16c is positioned at the upper end of the guide gear portion 24, so that the front lid 15 and the rear lid 16 are arranged in a flat plate shape in a state where they are inclined forward and downward. .

また、この蓋ガイド部14は、図2および図3に示すように、鍵盤蓋13が開いて鍵盤部10を上側に開放した際に、前蓋15と後蓋16とが蝶番17で折れ曲がり、前蓋15のガイド軸15aが鍵盤部10の後部上方に位置するガイドレール部18の箇所に位置し、後蓋16のガイド軸16aがガイドレール部18の後端部に位置し、この後蓋16の後端部に位置する連結軸22がガイド溝部23の下端部に位置し、かつピニオンギア16cがガイド歯車部24の下端部に位置することにより、鍵盤蓋13が鍵盤部10の後部を覆い隠すように、後蓋16を前蓋15に対し折り曲げて鍵盤部10の後部に接近させた状態で、垂下させ、かつ後述の第2放音孔28を閉塞しない位置に配置するように構成されている。   2 and 3, when the keyboard lid 13 is opened and the keyboard portion 10 is opened upward, the front lid 15 and the rear lid 16 are bent at a hinge 17, as shown in FIGS. The guide shaft 15a of the front lid 15 is located at a position of the guide rail portion 18 located above the rear portion of the keyboard portion 10, and the guide shaft 16a of the rear lid 16 is located at the rear end portion of the guide rail portion 18. 16 is located at the lower end of the guide groove 23, and the pinion gear 16c is located at the lower end of the guide gear 24, so that the keyboard cover 13 is connected to the rear of the keyboard 10. The rear lid 16 is bent with respect to the front lid 15 so as to be covered, and is suspended while being close to the rear portion of the keyboard portion 10, and the second sound emitting hole 28, which will be described later, is disposed at a position not closed. Has been.

ところで、楽器ケース1内には、図1〜図3に示すように、スピーカ26が鍵盤部10の後方に位置した状態で下向きに配置されている。すなわち、このスピーカ26は、鍵盤蓋13の後蓋16が前蓋15に対し折り曲げられて鍵盤部10の後部に接近した状態で垂下された際に、この後蓋16の後方に位置する箇所における鍵12の配列方向の両側に配置されている。この場合、楽器ケース1の底板2には、スピーカ26の音を楽器ケース1の下側に向けて放音する第1放音孔27が設けられている。   Incidentally, as shown in FIGS. 1 to 3, the speaker 26 is disposed downward in the instrument case 1 in a state where the speaker 26 is located behind the keyboard unit 10. That is, the speaker 26 is located at a position located behind the rear lid 16 when the rear lid 16 of the keyboard lid 13 is bent with respect to the front lid 15 and suspended in a state of approaching the rear portion of the keyboard portion 10. The keys 12 are arranged on both sides in the arrangement direction. In this case, the bottom plate 2 of the musical instrument case 1 is provided with a first sound emission hole 27 that emits the sound of the speaker 26 toward the lower side of the musical instrument case 1.

また、楽器ケース1の天板6における後天板8には、図1〜図3に示すように、スピーカ26の音を楽器ケース1の上側に向けて放音する第2放音孔28が設けられている。この場合、前天板7は、鍵盤部10の後部の上方に位置して後天板8よりも高い位置に配置され、鍵盤蓋13が鍵盤部10を上側に開放した際に、前蓋15の上面が接近するように構成されている。また、後天板8は、スピーカ26の上方に位置した状態で、その上面が前天板7の下面よりも少し低い高さで一対の側板5と後板4との各上部に亘って設けられている。   Further, as shown in FIGS. 1 to 3, the rear top plate 8 of the top plate 6 of the instrument case 1 is provided with a second sound emission hole 28 that emits the sound of the speaker 26 toward the upper side of the instrument case 1. It has been. In this case, the front top plate 7 is located above the rear portion of the keyboard portion 10 and is positioned higher than the rear top plate 8, and when the keyboard lid 13 opens the keyboard portion 10 upward, the top surface of the front lid 15. Is configured to approach. Further, the rear top plate 8 is provided over the upper portions of the pair of side plates 5 and the rear plate 4 with the upper surface of the rear top plate 8 being slightly lower than the lower surface of the front top plate 7 while being positioned above the speaker 26. Yes.

これにより、第2放音孔28は、図1〜図3に示すように、スピーカ26の上方に位置する後天板8に設けられている。この後天板8の上面には、第2放音孔28を塞ぐための放音蓋30が開閉可能に設けられている。この放音蓋30は、その厚みが前天板7とほぼ同じ厚みで形成され、開放選択部31によって後天板8上に開閉可能に取り付けられている。   Thereby, the 2nd sound emission hole 28 is provided in the back top plate 8 located above the speaker 26, as shown in FIGS. A sound emitting lid 30 for closing the second sound emitting hole 28 is provided on the top surface of the rear ceiling plate 8 so as to be openable and closable. The sound emitting lid 30 is formed with the same thickness as that of the front top plate 7, and is attached to the rear top plate 8 by the opening selection unit 31 so as to be opened and closed.

この開放選択部31は、図1〜図3に示すように、放音蓋30を開く際に楽器ケース1の前後方向のいずれか一方側に向けて選択的に放音蓋30を開くように構成されている。すなわち、この開放選択部31は、放音蓋30の前部を楽器ケース1の後天板8に対して着脱可能に取り付け、かつ放音蓋30の前部を回転可能に保持する前側保持部32と、放音蓋30の後部を楽器ケース1の後天板8に対して着脱可能に取り付け、かつ放音蓋30の後部を回転可能に保持する後側保持部33とを備えている。   As shown in FIGS. 1 to 3, the opening selection unit 31 selectively opens the sound emission cover 30 toward one of the front and rear directions of the musical instrument case 1 when opening the sound emission cover 30. It is configured. That is, the opening selection unit 31 is detachably attached to the rear top plate 8 of the musical instrument case 1 and the front holding unit 32 that rotatably holds the front portion of the sound emission lid 30. And a rear holding portion 33 that detachably attaches the rear portion of the sound emission lid 30 to the rear top plate 8 of the musical instrument case 1 and rotatably holds the rear portion of the sound emission lid 30.

前側保持部32は、図1〜図4に示すように、楽器ケースの後天板8における第2放音孔28の前部に設けられた前側装着部34と、放音蓋30の前部に設けられて前側装着部34に着脱可能に取り付けられる前側嵌合部35とを備えている。後側保持部33は、後天板8における第2放音孔28の後部に設けられた後側装着部36と、放音蓋30の後部に設けられて後側装着部36に着脱可能に取り付けられる後側嵌合部37とを備えている。   As shown in FIGS. 1 to 4, the front holding portion 32 is provided at the front mounting portion 34 provided at the front portion of the second sound emission hole 28 in the rear top plate 8 of the musical instrument case, and at the front portion of the sound emission lid 30. And a front fitting portion 35 that is provided and detachably attached to the front mounting portion 34. The rear holding portion 33 is detachably attached to the rear mounting portion 36 provided at the rear portion of the second sound emitting hole 28 in the rear top plate 8 and the rear mounting portion 36 provided at the rear portion of the sound emitting lid 30. The rear fitting part 37 is provided.

この場合、前側装着部34と後側装着部36とは、図4に示すように、それぞれゴムなどの弾力を有する合成樹脂からなり、その各上面に開放されたほぼ球形状の凹部34a、36aがそれぞれ形成されている。また、前側嵌合部35と後側嵌合部37とは、放音蓋30の下面にそれぞれ取り付けられた各取付脚部35a、37aと、これら各取付脚部35a、37aの下端部にそれぞれ取り付けられた球形状の各突起部35b、37bとを有している。   In this case, as shown in FIG. 4, each of the front mounting portion 34 and the rear mounting portion 36 is made of a synthetic resin having elasticity such as rubber, and has substantially spherical recesses 34a, 36a opened on the upper surfaces thereof. Are formed respectively. Moreover, the front side fitting part 35 and the rear side fitting part 37 are each attached to the lower end part of each attachment leg part 35a, 37a attached to the lower surface of the sound emission cover 30, and these each attachment leg part 35a, 37a, respectively. It has the attached spherical projections 35b, 37b.

すなわち、前側装着部34は、図2および図3に示すように、その凹部34aに前側嵌合部35の突起部35bが上方から圧入されて嵌合し、この状態で前側嵌合部35を回転可能に保持するように構成されている。この場合、前側装着部34は、前側嵌合部35の突起部35bが凹部34aに嵌合した状態で前側嵌合部35が回転した際に、放音蓋30を後部上りに任意の角度で傾斜させた状態で保持するように構成されている。また、この前側装着部34は、その凹部34aに対する前側嵌合部35の突起部35bの圧入による嵌合力に抗して前側嵌合部35が引き上げられると、凹部34aから前側嵌合部35の突起部35bが抜け出すように構成されている。   That is, as shown in FIGS. 2 and 3, the front mounting portion 34 is fitted into the concave portion 34a with the projection 35b of the front fitting portion 35 being press-fitted from above, and the front fitting portion 35 is fitted in this state. It is comprised so that rotation is possible. In this case, when the front fitting part 35 rotates in a state where the projection 35b of the front fitting part 35 is fitted in the concave part 34a, the front mounting part 34 raises the sound emitting lid 30 to the rear part upward at an arbitrary angle. It is configured to be held in an inclined state. Further, when the front fitting portion 35 is pulled up against the fitting force of the projection 35b of the front fitting portion 35 with respect to the concave portion 34a when the front fitting portion 35 is pulled up against the concave portion 34a, the front fitting portion 35 of the front fitting portion 35 is removed. The protrusion 35b is configured to come out.

同様に、後側装着部36は、図2および図3に示すように、その凹部36aに後側嵌合部37の突起部37bが上方から圧入されて嵌合し、この状態で後側嵌合部37を回転可能に保持するように構成されている。この場合にも、後側装着部36は、後側嵌合部37の突起部37bが凹部36aに嵌合した状態で後側嵌合部37が回転した際に、放音蓋30を前部上りに任意の角度で傾斜させた状態で保持するように構成されている。また、この後側装着部36は、その凹部36aに対する後側嵌合部37の突起部37bの圧入による嵌合力に抗して後側嵌合部37が引き上げられると、凹部36aから後側嵌合部37の突起部35bが抜け出すように構成されている。   Similarly, as shown in FIGS. 2 and 3, the rear mounting portion 36 is fitted into the recess 36a by press-fitting the protrusion 37b of the rear fitting portion 37 from above, and in this state, the rear fitting is performed. The joint portion 37 is configured to be rotatably supported. Also in this case, the rear mounting portion 36 moves the sound emitting lid 30 to the front when the rear fitting portion 37 rotates with the projection 37b of the rear fitting portion 37 fitted in the concave portion 36a. It is configured to be held in an inclined state at an arbitrary angle. Further, when the rear fitting portion 37 is pulled up against the fitting force caused by the press-fitting of the projection 37b of the rear fitting portion 37 with respect to the concave portion 36a, the rear fitting portion 36 is fitted to the rear fitting portion 37 from the concave portion 36a. The protruding portion 35b of the joint portion 37 is configured to come out.

次に、この電子鍵盤楽器の作用について説明する。
この電子鍵盤楽器で演奏をする場合には、まず、鍵盤蓋13を開いて鍵盤部10を上側に開放させる。このときには、前蓋15の前端部を持ち上げて後方に向けて移動させると、前蓋15のガイド軸15aと後蓋16のガイド軸16aがガイドレール部18に沿って移動し、後蓋16の連結軸22がガイド溝部23に沿って移動すると共に、ピニオンギア16cがガイド歯車部24に噛み合って移動しながら、前蓋15と後蓋16とが蝶番17で徐々に折れ曲がって楽器ケース1内の後側に向けて移動する。
Next, the operation of this electronic keyboard instrument will be described.
When playing with this electronic keyboard instrument, first, the keyboard lid 13 is opened and the keyboard unit 10 is opened upward. At this time, if the front end portion of the front lid 15 is lifted and moved rearward, the guide shaft 15a of the front lid 15 and the guide shaft 16a of the rear lid 16 move along the guide rail portion 18, and the rear lid 16 While the connecting shaft 22 moves along the guide groove portion 23 and the pinion gear 16c meshes with the guide gear portion 24 and moves, the front lid 15 and the rear lid 16 are gradually bent at the hinge 17, and the inside of the instrument case 1 Move towards the back.

そして、前蓋15のガイド軸15aが鍵盤部10の後部上方に位置するガイドレール部18の箇所に位置し、後蓋16のガイド軸16aがガイドレール部18の後端部に位置し、この後蓋16の後端部に位置する連結軸22がガイド溝部23の下端部に位置し、かつピニオンギア16cがガイド歯車部24の下端部に位置すると、後蓋16が前蓋15に対し折れ曲がって鍵盤部10の後部に接近した状態で楽器ケース1内に垂下される。   The guide shaft 15a of the front lid 15 is located at a position of the guide rail portion 18 located above the rear portion of the keyboard portion 10, and the guide shaft 16a of the rear lid 16 is located at the rear end portion of the guide rail portion 18. When the connecting shaft 22 located at the rear end portion of the rear lid 16 is located at the lower end portion of the guide groove portion 23 and the pinion gear 16c is located at the lower end portion of the guide gear portion 24, the rear lid 16 is bent with respect to the front lid 15. Then, it is suspended in the musical instrument case 1 in a state of approaching the rear part of the keyboard part 10.

これにより、鍵盤蓋13が、図2および図3に示すように、鍵盤部10の後部を覆い隠す。このときには、後蓋16が鍵盤部10の後部とスピーカ26との間に配置されて、その両方の間を仕切る。この状態では、鍵盤部10が上方に開放されて複数の鍵12が上側に露呈するので、演奏が可能な状態になる。この状態で、演奏する前には、まず、天板6の放音蓋30を開いて第2放音孔28を開放する。   As a result, the keyboard lid 13 covers the rear part of the keyboard unit 10 as shown in FIGS. At this time, the rear cover 16 is disposed between the rear portion of the keyboard unit 10 and the speaker 26, and partitions both of them. In this state, the keyboard portion 10 is opened upward and the plurality of keys 12 are exposed upward, so that a performance is possible. Before playing in this state, first, the sound emission lid 30 of the top plate 6 is opened to open the second sound emission hole 28.

このとき、演奏者がスピーカ26から放音される演奏音を聞く場合には、図2に示すように、放音蓋30を開放選択部31によって前上りに傾斜させて開放させる。この場合には、放音蓋30の前端部を持ち上げて、前側嵌合部35の突起部35bを前側装着部34の凹部34aから引き上げる。このときには、前側装着部34の凹部34aに対する前側嵌合部35の圧入による嵌合力に抗して、前側嵌合部35を引き上げると、前側嵌合部35の突起部35bが前側装着部34の凹部34aから抜け出す。   At this time, when the performer listens to the performance sound emitted from the speaker 26, the sound emission lid 30 is tilted forward and opened by the opening selection unit 31, as shown in FIG. In this case, the front end portion of the sound emitting lid 30 is lifted, and the projection 35b of the front fitting portion 35 is pulled up from the concave portion 34a of the front mounting portion 34. At this time, when the front fitting portion 35 is pulled up against the fitting force caused by the press fitting of the front fitting portion 35 with respect to the recess 34 a of the front mounting portion 34, the protrusion 35 b of the front fitting portion 35 is brought into contact with the front mounting portion 34. Get out of the recess 34a.

また、このときには、図2に示すように、後側嵌合部37の突起部37bが後側装着部36の凹部36aに圧入されて嵌合し、この状態で後側嵌合部37が回転可能に保持されているので、後側嵌合部37の突起部37bが後側装着部36の凹部36aに嵌合した状態で回転すると共に、後側装着部36の凹部36aに対する後側嵌合部37の突起部37bの圧入による嵌合力によって、放音蓋30が前部上りに任意の角度で傾斜した状態で保持される。   Further, at this time, as shown in FIG. 2, the protrusion 37b of the rear fitting portion 37 is press-fitted into the concave portion 36a of the rear mounting portion 36, and the rear fitting portion 37 rotates in this state. Since the protrusion 37b of the rear fitting portion 37 rotates in a state of being fitted in the concave portion 36a of the rear mounting portion 36, the rear fitting to the concave portion 36a of the rear mounting portion 36 is performed. The sound emitting lid 30 is held in an inclined state at an arbitrary angle upward by the fitting force due to the press-fitting of the protruding portion 37b of the portion 37.

これにより、放音蓋30が開放選択部31によって前上りに傾斜して開き、後天板8の第2放音孔28が開放されるので、演奏者が鍵盤部10を押鍵操作してスピーカ26から楽音を発生させると、そのスピーカ26からの音が第1放音孔27から下側に放音されると共に、第2放音孔28から楽器ケース1の上方に放音され、この上方に放音された音が放音蓋30によって楽器ケース1の前側に向けて放音される。このため、演奏者がスピーカ26から放音された演奏音を良好に聞くことができ、この放音された演奏音を聞きながら演奏することができる。   As a result, the sound emitting lid 30 is tilted forward and opened by the opening selection unit 31, and the second sound emitting hole 28 of the rear top plate 8 is opened, so that the performer performs a key operation on the keyboard unit 10 to operate the speaker. When a musical sound is generated from 26, the sound from the speaker 26 is emitted downward from the first sound emitting hole 27 and is emitted from the second sound emitting hole 28 above the instrument case 1, The sound emitted by the sound is emitted toward the front side of the musical instrument case 1 by the sound emission cover 30. Therefore, the performer can hear the performance sound emitted from the speaker 26 satisfactorily, and can perform while listening to the emitted performance sound.

一方、演奏者がコンサートで演奏する際に、スピーカ26から放音された楽音を聴衆者に聞かせる場合には、図3に示すように、放音蓋30を開放選択部31によって後上りに傾斜させて開放させる。この場合には、放音蓋30の後端部を持ち上げて、後側嵌合部37の突起部37bを後側装着部36の凹部36aから引き上げる。このときには、後側装着部36の凹部36aに対する後側嵌合部37の突起部37bの圧入による嵌合力に抗して、後側嵌合部37を引き上げると、後側嵌合部37の突起部37bが後側装着部36の凹部36aから抜け出す。   On the other hand, when the performer performs at the concert, when the musical sound emitted from the speaker 26 is heard by the audience, the sound emission lid 30 is moved backward by the opening selection unit 31 as shown in FIG. Tilt to open. In this case, the rear end portion of the sound emitting lid 30 is lifted, and the protrusion 37 b of the rear fitting portion 37 is pulled up from the concave portion 36 a of the rear mounting portion 36. At this time, when the rear fitting portion 37 is pulled up against the fitting force of the projection 37b of the rear fitting portion 37 against the concave portion 36a of the rear mounting portion 36, the protrusion of the rear fitting portion 37 is raised. The portion 37b comes out of the recess 36a of the rear mounting portion 36.

また、このときには、図3に示すように、前側嵌合部35の突起部35bが前側装着部34の凹部34aに圧入されて嵌合し、この状態で前側嵌合部35が回転可能に保持されているので、前側嵌合部35の突起部35bが前側装着部34の凹部34aに嵌合した状態で回転すると共に、前側装着部34の凹部34aに対する前側嵌合部35の突起部35bの圧入による嵌合力によって、放音蓋30が後部上りに任意の角度で傾斜した状態で保持される。   Further, at this time, as shown in FIG. 3, the protrusion 35b of the front fitting portion 35 is press-fitted into the concave portion 34a of the front mounting portion 34, and the front fitting portion 35 is rotatably held in this state. Therefore, the projection 35b of the front fitting portion 35 rotates in a state where the projection 35b is fitted in the concave portion 34a of the front mounting portion 34, and the projection 35b of the front fitting portion 35 with respect to the concave portion 34a of the front mounting portion 34 is rotated. The sound emission lid 30 is held in a state where it is inclined at an arbitrary angle to the rear ascending by the fitting force due to the press-fitting.

これにより、放音蓋30が開放選択部31によって後上りに傾斜して開き、後天板8の第2放音孔28が開放されるので、演奏者が鍵盤部10を押鍵操作してスピーカ26から楽音を発生させると、そのスピーカ26からの音が第1放音孔27から下側に放音されると共に、第2放音孔28から楽器ケース1の上方に放音され、この上方に放音された音が放音蓋30によって楽器ケース1の後側に向けて放音される。このため、聴衆者がスピーカ26から放音された演奏音を良好に聞くことができる。   As a result, the sound-release lid 30 is tilted and opened rearwardly by the opening selection portion 31 and the second sound-release hole 28 of the rear top plate 8 is opened, so that the performer operates the keyboard portion 10 to operate the speaker. When a musical sound is generated from 26, the sound from the speaker 26 is emitted downward from the first sound emitting hole 27 and is emitted from the second sound emitting hole 28 above the instrument case 1, The sound emitted by the sound is emitted toward the rear side of the musical instrument case 1 by the sound emission cover 30. For this reason, the audience can hear the performance sound emitted from the speaker 26 satisfactorily.

このように、この電子鍵盤楽器によれば、前部側が上方に開放された楽器ケース1と、この楽器ケース1内に配置されて楽器ケース1の前部上側に露呈された鍵盤部10と、楽器ケース1内における鍵盤部10の後方に配置されたスピーカ26と、楽器ケース1の上部である後天板8に設けられ、スピーカ26で発生した音を放音するための第2放音孔28と、この第2放音孔28を開閉可能に塞ぐ放音蓋30と、この放音蓋30を楽器ケース1の後天板8上に保持した状態で楽器ケース1の前後方向における少なくとも一方側に向けて選択的に開放する開放選択部31と、を備えていることにより、スピーカ26の音を効率良く、かつ良好に放音させることができる。   Thus, according to this electronic keyboard instrument, the instrument case 1 whose front side is opened upward, and the keyboard part 10 disposed in the instrument case 1 and exposed on the upper front side of the instrument case 1, A speaker 26 disposed behind the keyboard unit 10 in the instrument case 1 and a second sound emitting hole 28 provided on the rear top plate 8 that is an upper part of the instrument case 1 and for emitting sound generated by the speaker 26. And a sound emitting lid 30 for closing the second sound emitting hole 28 so as to be openable and closable, and at least one side in the front-rear direction of the instrument case 1 with the sound emitting cover 30 held on the rear top plate 8 of the instrument case 1. By providing the opening selection unit 31 that opens selectively, the sound of the speaker 26 can be emitted efficiently and satisfactorily.

すなわち、この電子鍵盤楽器では、楽器ケース1の後天板8に設けられた第2放音孔28を通して楽器ケース1内に設けられたスピーカ26の音を楽器ケース1の外部に良好に放音することができると共に、第2放音孔28を塞ぐ放音蓋30を開放選択部31によって楽器ケース1の前後方向における少なくとも一方側に向けて開放することができるので、スピーカ26の音を楽器ケース1の前側と後側との少なくともいずれかの方向に選択して放音することができ、これによりスピーカ26の音を効率良く、かつ良好に放音させることができる。   In other words, in this electronic keyboard instrument, the sound of the speaker 26 provided in the instrument case 1 is favorably emitted to the outside of the instrument case 1 through the second sound emission holes 28 provided in the rear panel 8 of the instrument case 1. In addition, the sound output cover 30 that closes the second sound output hole 28 can be opened toward at least one side in the front-rear direction of the musical instrument case 1 by the opening selection unit 31, so that the sound of the speaker 26 is transmitted to the musical instrument case. 1 can be selected and emitted in at least one of the front side and the rear side, whereby the sound of the speaker 26 can be emitted efficiently and satisfactorily.

この場合、開放選択部31は、放音蓋30の前部を楽器ケース1の上部である後天板8に対して着脱可能に取り付け、かつ放音蓋30の前部を回転可能に保持する前側保持部32と、放音蓋30の後部を楽器ケース1の後天板8に対して着脱可能に取り付け、かつ放音蓋30の後部を回転可能に保持する後側保持部33とを備えていることにより、後天板8に対する放音蓋30の前部の取り付けを前側保持部32で解除して、後側保持部33で放音蓋30の後部を保持することができ、これにより放音蓋30を前上がりに開くことができ、また後天板8に対する放音蓋30の後部の取り付けを後側保持部33で解除して、前側保持部32で放音蓋30の前部を保持することができ、これにより放音蓋30を後上がりに開くことができる。   In this case, the opening selection unit 31 detachably attaches the front part of the sound emission lid 30 to the rear top plate 8 which is the upper part of the musical instrument case 1 and holds the front part of the sound emission cover 30 rotatably. A holding portion 32 and a rear holding portion 33 that detachably attaches the rear portion of the sound emission lid 30 to the rear top plate 8 of the musical instrument case 1 and rotatably holds the rear portion of the sound emission lid 30 are provided. Thus, the attachment of the front portion of the sound emitting lid 30 to the rear ceiling plate 8 can be released by the front holding portion 32, and the rear portion of the sound emitting lid 30 can be held by the rear holding portion 33. 30 can be opened upward, and the attachment of the rear portion of the sound emitting lid 30 to the rear top plate 8 is released by the rear holding portion 33, and the front portion of the sound emitting lid 30 is held by the front holding portion 32. Thus, the sound emission cover 30 can be opened rearward.

すなわち、前側保持部32は、楽器ケース1の後天板8における第2放音孔28の前部に設けられた前側装着部34と、放音蓋30の前部に設けられて前側装着部34に着脱可能に取り付けられ、かつ前側装着部34に対して回転して放音蓋30を任意の傾斜角度で保持する前側嵌合部35とを備えており、後側保持部33は、楽器ケース1の後天板8における第2放音孔28の後部に設けられた後側装着部36と、放音蓋30の後部に設けられて後側装着部36に着脱可能に取り付けられ、かつ後側装着部36に対して回転して放音蓋30を任意の傾斜角度で保持する後側嵌合部37とを備えていることにより、放音蓋30を簡単に楽器ケース1の前後方向のいずれかに向けて開くことができる。   That is, the front side holding part 32 is provided at the front part of the second sound emitting hole 28 in the rear panel 8 of the musical instrument case 1 and the front side attaching part 34 provided at the front part of the sound emitting lid 30. And a front fitting portion 35 that rotates with respect to the front mounting portion 34 and holds the sound emitting lid 30 at an arbitrary inclination angle. The rear holding portion 33 is a musical instrument case. A rear mounting portion 36 provided at the rear portion of the second sound emitting hole 28 in the rear top plate 8, and a rear mounting portion 36 provided at the rear portion of the sound emitting lid 30 and detachably attached to the rear mounting portion 36. By providing the rear fitting portion 37 that rotates with respect to the mounting portion 36 and holds the sound emitting lid 30 at an arbitrary inclination angle, the sound emitting lid 30 can be easily attached to any of the front and rear directions of the musical instrument case 1. It can be opened towards the crab.

従って、この開放選択部31では、放音蓋30の前端部を持ち上げて、前側装着部34の凹部34aに対する前側嵌合部35の突起部35bの圧入による嵌合力に抗して、前側嵌合部35を引き上げることにより、前側嵌合部35の突起部35bを前側装着部34の凹部34aから抜き出することができ、この状態で後側装着部36の凹部36aに圧入されて嵌合した後側嵌合部37の突起部37bを回転させることにより、後側装着部36の凹部36aに対する後側嵌合部37の突起部37bの圧入による嵌合力によって、放音蓋30を前部上りに任意の角度で傾斜させた状態で保持することができる。   Therefore, in the opening selection portion 31, the front end portion of the sound emitting lid 30 is lifted and the front side fitting is resisted against the fitting force caused by the press fitting of the projection portion 35b of the front side fitting portion 35 with respect to the concave portion 34a of the front side mounting portion 34. By pulling up the portion 35, the projection 35b of the front fitting portion 35 can be extracted from the concave portion 34a of the front mounting portion 34, and in this state after being pressed into the concave portion 36a of the rear mounting portion 36 and fitting. By rotating the protruding portion 37b of the side fitting portion 37, the sound emitting lid 30 is raised to the front by the fitting force of the protruding portion 37b of the rear fitting portion 37 with respect to the concave portion 36a of the rear mounting portion 36. It can be held in an inclined state at an arbitrary angle.

これにより、放音蓋30を開放選択部31によって前上りに傾斜させて開くことができ、後天板8の第2放音孔28を開放することができるので、演奏者が鍵盤部10を押鍵操作してスピーカ26から楽音を発生させると、そのスピーカ26から放音された音を放音蓋30によって楽器ケース1の前側に向けて放音させることができる。このため、演奏者がスピーカ26から放音された演奏音を良好に聞くことができ、この放音された演奏音を聞きながら演奏することができる。   As a result, the sound emission lid 30 can be opened by being tilted forward by the opening selection portion 31, and the second sound emission hole 28 of the rear top plate 8 can be opened, so that the performer presses the keyboard portion 10. When a musical sound is generated from the speaker 26 by operating the key, the sound emitted from the speaker 26 can be emitted toward the front side of the musical instrument case 1 by the sound emission cover 30. Therefore, the performer can hear the performance sound emitted from the speaker 26 satisfactorily, and can perform while listening to the emitted performance sound.

また、この開放選択部31では、放音蓋30の後端部を持ち上げて、後側装着部36の凹部36aに対する後側嵌合部37の突起部37bの圧入による嵌合力に抗して、後側嵌合部37を引き上げることにより、後側嵌合部37の突起部37bを後側装着部36の凹部36aから抜く出することができ、この状態で前側装着部34の凹部34aに圧入されて嵌合した前側嵌合部35の突起部35bを回転させることにより、前側装着部34の凹部34aに対する前側嵌合部35の突起部35bの圧入による嵌合力によって、放音蓋30を後部上りに任意の角度で傾斜させた状態で保持することができる。   Further, in the opening selection portion 31, the rear end portion of the sound emitting lid 30 is lifted up against the fitting force due to the press-fitting of the projection 37 b of the rear fitting portion 37 with respect to the concave portion 36 a of the rear mounting portion 36. By pulling up the rear fitting portion 37, the projection 37b of the rear fitting portion 37 can be pulled out from the concave portion 36a of the rear mounting portion 36, and in this state, it is press-fitted into the concave portion 34a of the front mounting portion 34. By rotating the protruding portion 35b of the front fitting portion 35 that has been fitted, the sound emitting lid 30 is moved to the rear by the fitting force caused by the press fitting of the protruding portion 35b of the front fitting portion 35 to the concave portion 34a of the front mounting portion 34. It can be held in an inclined state at an arbitrary angle.

これにより、放音蓋30を開放選択部31によって後上りに傾斜させて開くことができ、後天板8の第2放音孔28を開放することができるので、演奏者が鍵盤部10を押鍵操作してスピーカ26から楽音を発生させると、そのスピーカ26からの音が第2放音孔28から楽器ケース1の上方に放音された際に、その放音された音を放音蓋30によって楽器ケース1の後側に向けて放音させることができる。このため、聴衆者がスピーカ26から放音された演奏音を良好に聞くことができる。   Accordingly, the sound emitting lid 30 can be opened by being tilted rearward and upward by the opening selection unit 31 and the second sound emitting hole 28 of the rear top plate 8 can be opened, so that the performer presses the keyboard unit 10. When a musical sound is generated from the speaker 26 by operating the key, when the sound from the speaker 26 is emitted above the musical instrument case 1 from the second sound emission hole 28, the emitted sound is covered with the sound emission cover. The sound can be emitted toward the rear side of the musical instrument case 1 by 30. For this reason, the audience can hear the performance sound emitted from the speaker 26 satisfactorily.

また、この電子鍵盤楽器では、前蓋15と後蓋16とが蝶番17によって折り曲げ可能に連結されて鍵盤部10を開閉可能に覆う鍵盤蓋13と、鍵盤部10を上側に開放した際に、鍵盤蓋13を折り曲げた状態で、鍵盤部10の後部とスピーカ26との間で、かつ第2放音孔28を閉塞しない位置に配置させる蓋ガイド部14と、を備えているので、鍵盤蓋13が鍵盤部10を開放させて上側に露呈させた状態で、この鍵盤部10を押鍵操作してスピーカ26から楽音を発生させた際に、その楽音を楽器ケース1に設けられた第2放音孔28から確実に、かつ良好に楽器ケース1の外部に放音させることができるので、スピーカ26の音を効率良く、かつ良好に放音させることができる。   Further, in this electronic keyboard instrument, when the front lid 15 and the rear lid 16 are foldably connected by a hinge 17 to cover the keyboard portion 10 so that the keyboard portion 10 can be opened and closed, and when the keyboard portion 10 is opened upward, Since the lid cover 14 is disposed between the rear portion of the keyboard 10 and the speaker 26 and the second sound emitting hole 28 is not closed in a state where the keyboard lid 13 is bent, the keyboard lid is provided. When the musical tone is generated from the speaker 26 by pressing the keyboard 10 while the keyboard 13 is opened and exposed upward, the musical tone is generated in the second case provided in the instrument case 1. Since the sound can be reliably and satisfactorily emitted from the sound emitting hole 28 to the outside of the musical instrument case 1, the sound of the speaker 26 can be emitted efficiently and satisfactorily.

この場合、蓋ガイド部14は、鍵盤部10の上側を鍵盤蓋13で覆った際に前蓋15と後蓋16とをほぼ平板状に配置し、かつ鍵盤部10を鍵盤蓋13が上側に開放した際に、前蓋15と後蓋16とを折り曲げて鍵盤蓋13を、鍵盤部10の後部に接近させた状態で、鍵盤部10の後部とスピーカ26との間に配置させる構成であるから、鍵盤蓋13を開いて楽器ケース1内に収納した際に、前蓋15と後蓋16とによって鍵盤部10の後部を覆うことができると共に、後蓋16によって鍵盤部10の後部とスピーカ26との間を仕切ることができ、これにより鍵盤部10の後方に位置する楽器ケース1内に音響空間を形成することができる。   In this case, when the upper side of the keyboard unit 10 is covered with the keyboard lid 13, the lid guide unit 14 arranges the front lid 15 and the rear lid 16 in a substantially flat plate shape, and the keyboard unit 10 faces the keyboard lid 13 upward. When opened, the front lid 15 and the rear lid 16 are bent, and the keyboard lid 13 is disposed between the rear portion of the keyboard portion 10 and the speaker 26 in a state in which the keyboard lid 13 is brought close to the rear portion of the keyboard portion 10. Then, when the keyboard lid 13 is opened and stored in the musical instrument case 1, the rear portion of the keyboard portion 10 can be covered by the front lid 15 and the rear lid 16, and the rear portion of the keyboard portion 10 and the speaker can be covered by the rear lid 16. 26, so that an acoustic space can be formed in the instrument case 1 located behind the keyboard portion 10.

(第2実施形態)
次に、図5〜図7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4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5〜図7に示すように、開放選択部31の前側装着部34を支持する前側支持部材40と、後側装着部36を支持する後側支持部材41とを備えた構成であり、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. 1-4.
As shown in FIGS. 5 to 7, the electronic keyboard instrument includes a front support member 40 that supports the front mounting part 34 of the opening selection unit 31 and a rear support member 41 that supports the rear mounting part 36. Other than this, the configuration is substantially the same as in the first embodiment.

この場合、前側支持部材40と後側支持部材41とは、図6および図7に示すように、それぞれ上下方向に伸縮するロッドアンテナとほぼ同じ構成になっている。すなわち、前側支持部材40と後側支持部材41とは、それぞれ大径のパイプ43内に小径のパイプ44をスライド可能に挿入し、この小径のパイプ44内に軸部45をスライド可能に挿入し、この軸部45の上端部で前側装着部34と後側装着部36との一方をそれぞれ支持するように構成されている。   In this case, as shown in FIGS. 6 and 7, the front support member 40 and the rear support member 41 have substantially the same configuration as a rod antenna that expands and contracts in the vertical direction. That is, the front side support member 40 and the rear side support member 41 respectively insert a small-diameter pipe 44 into a large-diameter pipe 43 so as to be slidable, and insert the shaft portion 45 into the small-diameter pipe 44 so as to be slidable. The upper end portion of the shaft portion 45 is configured to support one of the front mounting portion 34 and the rear mounting portion 36, respectively.

また、前側支持部材40と後側支持部材41とは、図6に示すように、大径のパイプ43と小径のパイプ44との間、および小径のパイプ44と軸部45との間に、その両方に摩擦抵抗を付与する筒部材46がそれぞれ設けられた構成になっている。この筒部材46は、それぞれ弾性を有する合成樹脂によって形成されている。   Further, as shown in FIG. 6, the front support member 40 and the rear support member 41 are provided between the large diameter pipe 43 and the small diameter pipe 44 and between the small diameter pipe 44 and the shaft portion 45. Each of them is provided with a cylindrical member 46 for imparting frictional resistance. Each cylindrical member 46 is formed of a synthetic resin having elasticity.

これにより、前側支持部材40と後側支持部材41とは、図6に示すように、大径のパイプ43に対して小径のパイプ44をスライドさせた際に、筒部材46の摩擦抵抗によって小径のパイプ44を大径のパイプ43に対する任意の位置に保持すると共に、小径のパイプ44に対して軸部45をスライドさせた際にも、筒部材46の摩擦抵抗によって軸部45を小径のパイプ44に対する任意の位置に保持するように構成されている。   As a result, the front support member 40 and the rear support member 41 have a small diameter due to the frictional resistance of the cylindrical member 46 when the small diameter pipe 44 is slid with respect to the large diameter pipe 43, as shown in FIG. The pipe 44 is held at an arbitrary position with respect to the large-diameter pipe 43, and when the shaft 45 is slid with respect to the small-diameter pipe 44, the shaft 45 is made small by the frictional resistance of the cylindrical member 46. It is configured to be held at an arbitrary position with respect to 44.

この場合、大径のパイプ43の上端部には、図6に示すように、小径のパイプ44の外周面に向けて突出した抜止め部43aが設けられており、小径のパイプ44の下端部には、大径のパイプ43の内周面に向けて突出した鍔部44aが設けられている。これにより、小径のパイプ44は、その鍔部44aが大径のパイプ43の抜止め部43aに当接することにより、大径のパイプ43から上方に抜け出さないように構成されている。   In this case, the upper end portion of the large-diameter pipe 43 is provided with a retaining portion 43a protruding toward the outer peripheral surface of the small-diameter pipe 44, as shown in FIG. Is provided with a flange 44a protruding toward the inner peripheral surface of the large-diameter pipe 43. As a result, the small-diameter pipe 44 is configured so that the collar portion 44 a abuts against the retaining portion 43 a of the large-diameter pipe 43 so that the small-diameter pipe 44 does not escape upward from the large-diameter pipe 43.

また、小径のパイプ44の上端部には、図6に示すように、軸部45の外周面に向けて突出した抜止め部44bが設けられており、軸部45の下端部には、小径のパイプ44の内周面に向けて突出した鍔部45aが設けられている。これにより、軸部45は、その鍔部45aが小径のパイプ44の抜止め部44bに当接することにより、小径のパイプ44から上方に抜け出さないように構成されている。   Further, as shown in FIG. 6, a retaining portion 44 b protruding toward the outer peripheral surface of the shaft portion 45 is provided at the upper end portion of the small-diameter pipe 44, and a small diameter portion is provided at the lower end portion of the shaft portion 45. A flange 45a that protrudes toward the inner peripheral surface of the pipe 44 is provided. As a result, the shaft portion 45 is configured so that the collar portion 45 a does not come out upward from the small diameter pipe 44 by abutting against the retaining portion 44 b of the small diameter pipe 44.

ところで、前側支持部材40は、図5および図6に示すように、楽器ケースの後天板8における第2放音孔28の前部(図5では左側部)に位置する箇所に上下方向に伸縮自在に埋設され、この状態で軸部45の上端部に前側装着部34の取付部34bがビス47によって取り付けられるように構成されている。この場合、後天板8における第2放音孔28の前部に位置する箇所には、前側支持部材40が挿入する貫通孔8aが設けられている。また、この後天板8の下面には、前側支持部材40が挿入して取り付けられる取付筒部48が貫通孔8aに対応してビス48aによって取り付けられている。   By the way, as shown in FIGS. 5 and 6, the front support member 40 expands and contracts in the vertical direction at a position located at the front portion (left side portion in FIG. 5) of the second sound emission hole 28 in the rear plate 8 of the instrument case. In this state, the mounting portion 34b of the front mounting portion 34 is attached to the upper end portion of the shaft portion 45 by screws 47. In this case, a through hole 8 a into which the front support member 40 is inserted is provided at a position located in the front portion of the second sound emitting hole 28 in the rear ceiling plate 8. Further, an attachment cylinder portion 48 to which the front support member 40 is inserted and attached is attached to the lower surface of the rear top plate 8 with screws 48a corresponding to the through holes 8a.

これにより、前側支持部材40は、図5および図6に示すように、大径のパイプ43が取付筒部48内に取り付けられ、この大径のパイプ43内に小径のパイプ44が収納され、この小径のパイプ44内に軸部45が収納され、この軸部45の上端部が後天板8の貫通孔8a内に配置され、この軸部45の上端部に取り付けられた前側装着部34が後天板8の上側に突出した状態で支持されるように構成されている。また、この前側支持部材40は、小径のパイプ44および軸部45が後天板8の貫通孔8aを通して後天板8の上方に伸縮自在に伸びるように構成されている。   Thereby, as shown in FIG. 5 and FIG. 6, the front support member 40 has a large-diameter pipe 43 attached in the mounting cylinder portion 48, and the small-diameter pipe 44 is accommodated in the large-diameter pipe 43, A shaft portion 45 is accommodated in the small-diameter pipe 44, an upper end portion of the shaft portion 45 is disposed in the through hole 8 a of the rear top plate 8, and a front mounting portion 34 attached to the upper end portion of the shaft portion 45 is provided. The rear top plate 8 is configured to be supported in a state protruding from the upper side. The front support member 40 is configured such that a small-diameter pipe 44 and a shaft portion 45 extend in a telescopic manner above the rear top plate 8 through the through holes 8a of the rear top plate 8.

同様に、後側支持部材41は、図5に示すように、楽器ケースの後天板8における第2放音孔28の後部(図5では右側部)に位置する箇所に上下方向に伸縮自在に埋設され、この状態で軸部45の上端部に後側装着部36の取付部36bがビス47によって取り付けられるように構成されている。この場合にも、後天板8における第2放音孔28の後部に位置する箇所には、後側支持部材41が挿入する貫通孔8aが設けられている。また、この後天板8の下面には、後側支持部材41が挿入して取り付けられる取付筒部48が貫通孔8aに対応してビス48aによって取り付けられている。   Similarly, as shown in FIG. 5, the rear support member 41 is extendable in the vertical direction at a position located at the rear portion (right side portion in FIG. 5) of the second sound emission hole 28 in the rear top plate 8 of the musical instrument case. In this state, the mounting portion 36 b of the rear side mounting portion 36 is attached to the upper end portion of the shaft portion 45 by a screw 47. Also in this case, a through hole 8 a into which the rear support member 41 is inserted is provided at a position located at the rear portion of the second sound emitting hole 28 in the rear ceiling plate 8. Further, an attachment cylinder portion 48 to which the rear support member 41 is inserted and attached is attached to the lower surface of the rear top plate 8 with screws 48a corresponding to the through holes 8a.

これにより、後側支持部材41は、図5および図6に示すように、大径のパイプ43が取付筒部48内に取り付けられ、この大径のパイプ43内に小径のパイプ44が収納され、この小径のパイプ44内に軸部45が収納され、この軸部45の上端部が後天板8の貫通孔8a内に配置され、この軸部45の上端部に取り付けられた後側装着部36が後天板8の上側に突出した状態で支持されるように構成されている。また、この後側支持部材41も、小径のパイプ44および軸部45が後天板8の貫通孔8aを通して後天板8の上方に伸縮自在に伸びるように構成されている。   As a result, as shown in FIGS. 5 and 6, the rear support member 41 has the large-diameter pipe 43 mounted in the mounting cylinder portion 48, and the small-diameter pipe 44 is accommodated in the large-diameter pipe 43. The shaft portion 45 is accommodated in the small-diameter pipe 44, and the upper end portion of the shaft portion 45 is disposed in the through hole 8a of the rear top plate 8 and is attached to the upper end portion of the shaft portion 45. It is comprised so that 36 may be supported in the state protruded to the upper side of the back top plate 8. As shown in FIG. The rear support member 41 is also configured such that the small-diameter pipe 44 and the shaft portion 45 extend in a telescopic manner above the rear top plate 8 through the through holes 8a of the rear top plate 8.

次に、この電子鍵盤楽器の作用について説明する。
まず、鍵盤蓋13を開いて鍵盤部10を上側に開放させ、この状態で演奏する前に放音蓋30を開いて第2放音孔28を開放する場合について説明する。このときに、演奏者がコンサートで演奏する際に、スピーカ26から放音される楽音を聴衆者に聞かせる際には、図5に示すように、放音蓋30を開放選択部31によって後上りに傾斜させて開放させる。
Next, the operation of this electronic keyboard instrument will be described.
First, a case will be described in which the keyboard lid 13 is opened and the keyboard portion 10 is opened upward, and the sound emitting lid 30 is opened and the second sound emitting hole 28 is opened before playing in this state. At this time, when the performer performs at the concert, when the musical sound emitted from the speaker 26 is heard by the audience, the sound emission lid 30 is moved by the opening selection unit 31 as shown in FIG. Tilt up and open.

この場合には、放音蓋30の後端部を持ち上げて、後側嵌合部37の突起部37bを後側装着部36の凹部36aに嵌合させた状態で、後側支持部材41を後天板8の上方に伸縮自在に引き伸ばす。このときには、図6に示すように、取付筒部48内に取り付けられた大径のパイプ43内から小径のパイプ44が引き出されると共に、この小径のパイプ44内から軸部45が引き出される。   In this case, the rear support member 41 is moved in a state where the rear end portion of the sound emission lid 30 is lifted and the projection 37b of the rear fitting portion 37 is fitted to the concave portion 36a of the rear mounting portion 36. The rear top plate 8 is stretched and retracted. At this time, as shown in FIG. 6, the small-diameter pipe 44 is drawn out from the large-diameter pipe 43 attached in the attachment cylinder portion 48, and the shaft portion 45 is drawn out from the small-diameter pipe 44.

すると、図5に示すように、軸部45が後天板8の貫通孔8bを通して後天板8の上方に突出し、この突出した軸部45の上端部に取り付けられた後側装着部36が後天板8の上方に押し上げられ、この状態で後側装着部36が後側支持部材41によって後天板8の上方に支持される。これにより、放音蓋30の後部が後天板8の上方に押し上げられて支持される。この状態では、後側支持部材41の小径のパイプ44および軸部45が筒部材46の摩擦力によって任意の位置に保持されているので、後側支持部材41が放音蓋30をその重量に抗して支持する。   Then, as shown in FIG. 5, the shaft portion 45 protrudes above the rear ceiling plate 8 through the through hole 8 b of the rear ceiling plate 8, and the rear mounting portion 36 attached to the upper end portion of the protruding shaft portion 45 is the rear ceiling plate. The rear mounting portion 36 is supported above the rear top plate 8 by the rear support member 41 in this state. Thereby, the rear part of the sound emission cover 30 is pushed up above the rear top plate 8 and supported. In this state, since the small-diameter pipe 44 and the shaft portion 45 of the rear support member 41 are held at arbitrary positions by the frictional force of the cylindrical member 46, the rear support member 41 sets the sound emitting lid 30 to its weight. Support against it.

また、このときには、図5に示すように、前側支持部材40が収縮して後天板8の貫通孔8a内および取付筒部48内に収納された状態で、前側装着部34を貫通孔8aの上部に支持している。この状態で、前側装着部34の凹部34aに嵌合した前側嵌合部35の突起部35bが、後側支持部材41の引き出し動作に応じて回転する。これにより、後側支持部材41で押し上げられた後側装着部36によって放音蓋30が後部上りに任意の角度で傾斜した状態で保持される。   Further, at this time, as shown in FIG. 5, the front mounting member 34 is retracted into the through hole 8a in a state where the front support member 40 is contracted and accommodated in the through hole 8a of the rear top plate 8 and the mounting cylinder portion 48. Supports the top. In this state, the projection 35b of the front side fitting portion 35 fitted in the concave portion 34a of the front side mounting portion 34 rotates in accordance with the pulling operation of the rear side support member 41. Thereby, the sound emitting lid 30 is held in an inclined state at an arbitrary angle by the rear mounting portion 36 pushed up by the rear support member 41.

これにより、第1実施形態と同様、放音蓋30が開放選択部31によって後上りに傾斜して開き、後天板8の第2放音孔28が開放されるので、演奏者が鍵盤部10を押鍵操作してスピーカ26から楽音を発生させると、そのスピーカ26からの音が第2放音孔28から楽器ケース1の上方に放音され、この放音された音が放音蓋30によって楽器ケース1の後側に向けて放音される。このため、聴衆者がスピーカ26から放音された演奏音を良好に聞くことができる。   As a result, as in the first embodiment, the sound emission lid 30 is tilted and opened rearwardly by the opening selection unit 31, and the second sound emission hole 28 of the rear top plate 8 is opened. When a musical sound is generated from the speaker 26 by pressing the key, the sound from the speaker 26 is emitted above the musical instrument case 1 from the second sound emission hole 28, and the emitted sound is emitted from the sound emission cover 30. Is emitted toward the rear side of the musical instrument case 1. For this reason, the audience can hear the performance sound emitted from the speaker 26 satisfactorily.

一方、演奏者がスピーカ26から放音された演奏音を聞く場合には、放音蓋30を開放選択部31によって前上りに傾斜させて開放させる。この場合には、放音蓋30の前端部を持ち上げて、前側嵌合部35の突起部35bを前側装着部34の凹部34aに嵌合させた状態で、前側支持部材40を後天板8の上方に伸縮自在に引き伸ばす。このときにも、図6に示すように、取付筒部48内に取り付けられた大径のパイプ43内から小径のパイプ44が引き出されると共に、この小径のパイプ44内から軸部45が引き出される。   On the other hand, when the performer hears the performance sound emitted from the speaker 26, the sound release cover 30 is tilted forward and opened by the opening selection unit 31. In this case, the front support member 40 is attached to the rear top plate 8 in a state where the front end portion of the sound emitting lid 30 is lifted and the projection 35b of the front fitting portion 35 is fitted to the concave portion 34a of the front mounting portion 34. Stretch upwards and retractably. Also at this time, as shown in FIG. 6, the small-diameter pipe 44 is drawn out from the large-diameter pipe 43 attached in the attachment cylinder portion 48, and the shaft portion 45 is drawn out from the small-diameter pipe 44. .

すると、軸部45が後天板8の貫通孔8aを通して後天板8の上方に突出し、この突出した軸部45の上端部に取り付けられた前側装着部34が後天板8の上方に押し上げられ、この状態で前側装着部34が前側支持部材40によって後天板8の上方に支持される。これにより、放音蓋30の前部が後天板8の上方に押し上げられて支持される。この状態では、前側支持部材40の小径のパイプ44および軸部45が筒部材46の摩擦力によって任意の位置に保持されているので、前側支持部材40が放音蓋30をその重量に抗して支持する。   Then, the shaft portion 45 protrudes above the rear top plate 8 through the through hole 8a of the rear top plate 8, and the front mounting portion 34 attached to the upper end portion of the protruded shaft portion 45 is pushed up above the rear top plate 8, In this state, the front mounting portion 34 is supported above the rear top plate 8 by the front support member 40. Thereby, the front part of the sound emission cover 30 is pushed up above the rear top plate 8 and supported. In this state, since the small-diameter pipe 44 and the shaft portion 45 of the front support member 40 are held at arbitrary positions by the frictional force of the cylindrical member 46, the front support member 40 resists the weight of the sound emission lid 30. And support.

また、このときには、後側支持部材41が収縮して後天板8の貫通孔8b内および取付筒部48内に収納された状態で、後側装着部36を貫通孔8bの上部に支持している。この状態で、後側装着部36の凹部36aに嵌合した後側嵌合部37の突起部37bが、前側支持部材40の引き出し動作に応じて回転する。これにより、前側支持部材40で押し上げられた前側装着部34によって放音蓋30が前部上りに任意の角度で傾斜した状態で保持される。   At this time, the rear support member 41 is contracted and accommodated in the through hole 8b of the rear top plate 8 and the mounting cylinder portion 48, and the rear mounting portion 36 is supported on the upper portion of the through hole 8b. Yes. In this state, the projection 37b of the rear fitting portion 37 fitted in the recess 36a of the rear mounting portion 36 rotates according to the pulling operation of the front support member 40. Thereby, the sound emitting lid 30 is held in an inclined state at an arbitrary angle by the front side mounting portion 34 pushed up by the front side support member 40 in the front portion upward direction.

これにより、第1実施形態と同様、放音蓋30が開放選択部31によって前上りに傾斜して開き、後天板8の第2放音孔28が開放されるので、演奏者が鍵盤部10を押鍵操作してスピーカ26から楽音を発生させると、そのスピーカ26からの音が第2放音孔28から楽器ケース1の上方に放音され、この放音された音が放音蓋30によって楽器ケース1の前側に向けて放音される。このため、演奏者がスピーカ26から放音された演奏音を良好に聞くことができ、この放音された演奏音を聞きながら演奏することができる。   As a result, as in the first embodiment, the sound emission lid 30 is tilted forward and opened by the opening selection portion 31 and the second sound emission hole 28 of the rear top plate 8 is opened, so that the performer can play the keyboard portion 10. When a musical sound is generated from the speaker 26 by pressing the key, the sound from the speaker 26 is emitted above the musical instrument case 1 from the second sound emission hole 28, and the emitted sound is emitted from the sound emission cover 30. Is emitted toward the front side of the musical instrument case 1. Therefore, the performer can hear the performance sound emitted from the speaker 26 satisfactorily, and can perform while listening to the emitted performance sound.

このように、この第2実施形態の電子鍵盤楽器においても、第1実施形態と同様の作用効果があるほか、前側装着部34が楽器ケース1の後天板8における第2放音孔28の前部に位置する箇所に上下方向に伸縮自在に設けられた前側支持部材40に取り付けられており、後側装着部36が楽器ケース1の後天板8における第2放音孔28の後部に位置する箇所に上下方向に伸縮自在に設けられた後側支持部材41に取り付けられているので、放音蓋30を前後方向のいずれかの方向に傾けて開いた際に、第1実施形態よりも、安定した状態で確実に放音蓋30を支持することができる。   As described above, the electronic keyboard instrument of the second embodiment also has the same effects as the first embodiment, and the front mounting portion 34 is located in front of the second sound emission hole 28 in the rear top plate 8 of the instrument case 1. Is attached to a front support member 40 that is vertically extendable at a position located in the part, and the rear mounting part 36 is located in the rear part of the second sound emitting hole 28 in the rear plate 8 of the instrument case 1. Since it is attached to a rear support member 41 that is vertically extendable at a location, when the sound emitting lid 30 is tilted and opened in any direction of the front-rear direction, the first embodiment, The sound emitting lid 30 can be reliably supported in a stable state.

すなわち、前側支持部材40と後側支持部材41とは、それぞれ大径のパイプ43内に小径のパイプ44をスライド可能に挿入し、この小径のパイプ44内に軸部45をスライド可能に挿入し、この軸部45の上端部で前側装着部34と後側装着部36との一方をそれぞれ支持し、かつ大径のパイプ43と小径のパイプ44との間、および小径のパイプ44と軸部45との間に、その両方に摩擦抵抗を付与する筒部材46をそれぞれ設けた構成であるから、筒部材46の摩擦抵抗によって小径のパイプ44および軸部45を任意の引き出し位置に保持することができ、これにより放音蓋30を安定した状態で確実に支持することができる。   That is, the front side support member 40 and the rear side support member 41 respectively insert a small-diameter pipe 44 into a large-diameter pipe 43 so as to be slidable, and insert the shaft portion 45 into the small-diameter pipe 44 so as to be slidable. The upper end portion of the shaft portion 45 supports one of the front mounting portion 34 and the rear mounting portion 36, and between the large diameter pipe 43 and the small diameter pipe 44, and between the small diameter pipe 44 and the shaft portion. 45, the cylindrical member 46 that provides friction resistance to both of them is provided, so that the small-diameter pipe 44 and the shaft portion 45 are held at an arbitrary drawing position by the frictional resistance of the cylindrical member 46. Thus, the sound emitting lid 30 can be reliably supported in a stable state.

(第3実施形態)
次に、図8を参照して、この発明を電子鍵盤楽器に適用した第3実施形態について説明する。この場合にも、図1〜図4に示された第1実施形態と同一部分に同一符号を付して説明する。
この電子鍵盤楽器は、図8に示すように、放音蓋30を前側放音蓋部50と後側放音蓋部51とに分割し、この前側放音蓋部50と後側放音蓋部51とを連結部52によって回転可能に連結した構成であり、これ以外は第1実施形態とほぼ同じ構成になっている。
(Third embodiment)
Next, a third embodiment in which the present invention is applied to an electronic keyboard instrument will be described with reference to FIG. Also in this case, the same portions as those in the first embodiment shown in FIGS.
As shown in FIG. 8, the electronic keyboard instrument divides the sound emitting lid 30 into a front sound emitting lid portion 50 and a rear sound emitting lid portion 51, and the front sound emitting lid portion 50 and the rear sound emitting lid portion 51. It is the structure which connected with the part 51 so that rotation was possible by the connection part 52, and it has the structure substantially the same as 1st Embodiment except this.

この場合、連結部52は、図8に示すように、前側放音蓋部50の後端面(図8では右端面)における両側(図8では紙面の表裏方向の両側)に設けられた連結嵌合部53と、後側放音蓋部51の前端面(図8では左端面)における両側(図8では紙面の表裏方向の両側)に設けられて連結嵌合部53が回転可能に装着する連結装着部54とを備えている。   In this case, as shown in FIG. 8, the connecting portions 52 are connected fittings provided on both sides (both sides in the front and back direction of the paper surface in FIG. 8) of the rear end surface (right end surface in FIG. 8) of the front sound emitting lid portion 50. The coupling portion 53 is provided on both sides (both sides in the front and back direction of the paper in FIG. 8) on the front end surface (left end surface in FIG. 8) of the joint portion 53 and the rear sound emitting lid portion 51, and the connection fitting portion 53 is rotatably mounted. And a connection mounting portion 54.

この連結装着部54は、図8に示すように、左面に開放されたほぼ球形状の凹部54aが形成された構成になっている。また、連結嵌合部53は、前側放音蓋部50の後端面に取り付けられた取付脚部53aと、この取付脚部53aの先端部に取り付けられた球形状の突起部53bとを有している。   As shown in FIG. 8, the connection mounting portion 54 has a configuration in which a substantially spherical concave portion 54a opened on the left surface is formed. Further, the connection fitting portion 53 includes an attachment leg portion 53a attached to the rear end surface of the front sound emitting lid portion 50, and a spherical protrusion 53b attached to the tip end portion of the attachment leg portion 53a. ing.

すなわち、連結装着部54は、図8に示すように、その凹部54aに連結嵌合部53の突起部53bが側方から圧入されて嵌合し、この状態で連結嵌合部53の突起部53bを回転可能に保持するように構成されている。この場合、連結装着部54は、連結嵌合部53の突起部53bが凹部54aに嵌合した状態で連結嵌合部53が回転した際に、前側放音蓋部50と後側放音蓋部51とのいずれか一方を任意の角度に折り曲げた状態で保持するように構成されている。   That is, as shown in FIG. 8, the connection mounting portion 54 is fitted into the recess 54 a by pressing the protrusion 53 b of the connection fitting portion 53 from the side, and in this state, the protrusion of the connection fitting portion 53. 53b is rotatably held. In this case, when the connection fitting part 53 rotates in the state where the projection 53b of the connection fitting part 53 is fitted in the recess 54a, the connection mounting part 54 and the rear sound emission lid 50 are connected. It is comprised so that either one of the part 51 may be hold | maintained in the state bent at arbitrary angles.

次に、この電子鍵盤楽器の作用について説明する。
まず、鍵盤蓋13を開いて鍵盤部10を上側に開放させ、この状態で演奏する前に放音蓋30を開いて第2放音孔28を開放する場合について説明する。このときに、演奏者がスピーカ26から放音される演奏音を聞く際には、図8に示すように、放音蓋30を開放選択部31によって前上りに傾斜させて開放させる。
Next, the operation of this electronic keyboard instrument will be described.
First, a case will be described in which the keyboard lid 13 is opened and the keyboard portion 10 is opened upward, and the sound emitting lid 30 is opened and the second sound emitting hole 28 is opened before playing in this state. At this time, when the performer listens to the performance sound emitted from the speaker 26, the sound emission lid 30 is tilted forward and opened by the opening selection unit 31, as shown in FIG.

この場合には、第1実施形態と同様、放音蓋30の前端部を持ち上げて、前側装着部34の凹部34aに対する前側嵌合部35の突起部35bの圧入による嵌合力に抗して、前側嵌合部35を引き上げることにより、前側嵌合部35の突起部35bを前側装着部34の凹部34aから抜き出す。また、このときには、後側嵌合部37の突起部37bが後側装着部36の凹部36aに圧入されて嵌合し、この状態で後側嵌合部37が回転可能に保持されているので、後側嵌合部37の突起部37bが後側装着部36の凹部36aに嵌合した状態で回転する。   In this case, as in the first embodiment, the front end portion of the sound emission lid 30 is lifted up against the fitting force due to the press-fitting of the protrusion 35b of the front fitting portion 35 with respect to the concave portion 34a of the front mounting portion 34, By pulling up the front fitting portion 35, the protrusion 35 b of the front fitting portion 35 is extracted from the concave portion 34 a of the front mounting portion 34. Further, at this time, the protrusion 37b of the rear fitting portion 37 is press-fitted into the concave portion 36a of the rear mounting portion 36, and the rear fitting portion 37 is rotatably held in this state. The protrusion 37b of the rear fitting portion 37 rotates in a state of being fitted to the concave portion 36a of the rear mounting portion 36.

このため、第1実施形態と同様、後側装着部36の凹部36aに対する後側嵌合部37の突起部37bの圧入による嵌合力によって、放音蓋30が前部上りに任意の角度で傾斜した状態で保持される。この状態で、図8に示すように、前側放音蓋部50を連結部52で回転させて任意の角度に折り曲げる。すなわち、前側放音蓋部50の連結嵌合部53の突起部53bが後側放音蓋部51の連結装着部54の凹部54aに圧入されて嵌合し、この状態で連結嵌合部53が回転可能に保持されているので、連結嵌合部53の突起部53bが連結装着部54の凹部54aに嵌合した状態で回転する。   For this reason, as in the first embodiment, the sound emission lid 30 is inclined upward at an arbitrary angle by the fitting force of the protrusion 37b of the rear fitting portion 37 with respect to the concave portion 36a of the rear mounting portion 36. It is held in the state. In this state, as shown in FIG. 8, the front sound emitting lid portion 50 is rotated by the connecting portion 52 and bent at an arbitrary angle. That is, the protrusion 53b of the connection fitting portion 53 of the front sound emitting lid portion 50 is press-fitted into the concave portion 54a of the connection mounting portion 54 of the rear sound emitting lid portion 51, and the connection fitting portion 53 is fitted in this state. Since the protrusion 53b of the connection fitting portion 53 is fitted in the recess 54a of the connection mounting portion 54, the rotation is maintained.

このときには、図8に示すように、前側放音蓋部50が後側放音蓋部51に対して任意の角度に折り曲げられ、この折り曲げられた状態で、連結装着部54の凹部54aに対する連結嵌合部53の突起部53bの圧入による嵌合力によって、前側放音蓋部50が保持される。これにより、放音蓋30が前側に向けて開き、後天板8の第2放音孔28が開放される。   At this time, as shown in FIG. 8, the front sound emitting lid portion 50 is bent at an arbitrary angle with respect to the rear sound emitting lid portion 51, and in this bent state, the connection mounting portion 54 is connected to the recess 54 a. The front sound emitting lid 50 is held by the fitting force due to the press-fitting of the protrusion 53 b of the fitting part 53. Thereby, the sound emission cover 30 opens toward the front side, and the second sound emission hole 28 of the rear top plate 8 is opened.

このため、演奏者が鍵盤部10を押鍵操作してスピーカ26から楽音を発生させると、そのスピーカ26からの音が第2放音孔28から楽器ケース1の上方に放音され、この放音された音が放音蓋30によって楽器ケース1の前側に向けて放音される。このときに、連結部52を中心に前側放音蓋部50を前下がりに回転させて後天板8とほぼ平行な状態にすると、スピーカ26からの音を演奏者に向けて集音するような指向性をもって放音させることができる。   For this reason, when the performer operates the keyboard unit 10 to generate a musical sound from the speaker 26, the sound from the speaker 26 is emitted above the instrument case 1 through the second sound emitting hole 28, and this sound is released. The generated sound is emitted toward the front side of the musical instrument case 1 by the sound emission cover 30. At this time, if the front sound emitting lid 50 is rotated forward and downward with the connecting portion 52 as the center so as to be substantially parallel to the rear top plate 8, the sound from the speaker 26 is collected toward the performer. Sound can be emitted with directivity.

また、このときに、連結部52を中心に前側放音蓋部50を前上がりに回転させて後天板8に対して前上がりに傾斜させた状態にすると、スピーカ26からの音を演奏者に向けて拡散するような指向性をもって放音させることができる。これにより、演奏者がスピーカ26から放音された演奏音を良好に聞くことができ、この放音された演奏音を聞きながら演奏することができる。   At this time, if the front sound emitting lid 50 is rotated forward and tilted forward with respect to the rear panel 8 with the connecting portion 52 as the center, the sound from the speaker 26 is given to the performer. The sound can be emitted with directivity that diffuses toward. Thereby, the performer can hear the performance sound emitted from the speaker 26 satisfactorily, and can perform while listening to the emitted performance sound.

一方、演奏者がコンサートで演奏する際に、スピーカ26から放音される楽音を聴衆者に聞かせる際には、第1実施形態と同様、放音蓋30の後端部を持ち上げて、後側装着部36の凹部36aに対する後側嵌合部37の突起部37bの圧入による嵌合力に抗して、後側嵌合部37を引き上げることにより、後側嵌合部37の突起部37bを後側装着部36の凹部36aから抜き出す。また、このときには、前側嵌合部35の突起部35bが前側装着部34の凹部34aに圧入されて嵌合し、この状態で前側嵌合部35が回転可能に保持されているので、前側嵌合部35の突起部35bが前側装着部34の凹部34aに嵌合した状態で回転する。   On the other hand, when the performer performs at a concert, when the musical sound emitted from the speaker 26 is heard by the audience, the rear end portion of the sound emission lid 30 is lifted up as in the first embodiment. By pulling up the rear fitting portion 37 against the fitting force of the projection 37b of the rear fitting portion 37 against the concave portion 36a of the side mounting portion 36, the protruding portion 37b of the rear fitting portion 37 is pulled up. Extract from the recess 36 a of the rear mounting portion 36. At this time, the projection 35b of the front fitting portion 35 is press-fitted into and fitted into the recess 34a of the front mounting portion 34, and the front fitting portion 35 is rotatably held in this state. The projection 35b of the joint portion 35 rotates in a state of being fitted in the recess 34a of the front mounting portion 34.

このため、第1実施形態と同様、前側装着部34の凹部34aに対する前嵌合部35の突起部35bの圧入による嵌合力によって、放音蓋30が後部上りに任意の角度で傾斜した状態で保持される。この状態で、放音蓋30の後側放音蓋部51を連結部52で回転させて任意の角度に折り曲げる。すなわち、前側放音蓋部50の連結嵌合部53の突起部53bが後側放音蓋部51の連結装着部54の凹部54aに圧入されて嵌合し、この状態で連結嵌合部53が回転可能に保持されているので、連結嵌合部53の突起部53bが連結装着部54の凹部54aに嵌合した状態で回転する。   For this reason, in the same manner as in the first embodiment, the sound emitting lid 30 is inclined upward at an arbitrary angle by the fitting force due to the press-fitting of the projection 35b of the front fitting portion 35 with respect to the concave portion 34a of the front mounting portion 34. Retained. In this state, the rear sound emission cover part 51 of the sound emission cover 30 is rotated by the connecting part 52 and bent at an arbitrary angle. That is, the protrusion 53b of the connection fitting portion 53 of the front sound emitting lid portion 50 is press-fitted into the concave portion 54a of the connection mounting portion 54 of the rear sound emitting lid portion 51, and the connection fitting portion 53 is fitted in this state. Since the protrusion 53b of the connection fitting portion 53 is fitted in the recess 54a of the connection mounting portion 54, the rotation is maintained.

このときには、放音蓋30の後側放音蓋部51が前側放音蓋部50に対して任意の角度に折り曲げられ、この折り曲げられた状態で、連結装着部54の凹部54aに対する連結嵌合部53の突起部53bの圧入による嵌合力によって、後側放音蓋部51が保持される。これにより、放音蓋30が後側に向けて開き、後天板8の第2放音孔28が開放される。このため、演奏者が鍵盤部10を押鍵操作してスピーカ26から楽音を発生させると、そのスピーカ26からの音が第2放音孔28から楽器ケース1の上方に放音され、この放音された音が放音蓋30によって楽器ケース1の後側に向けて放音される。   At this time, the rear sound output cover 51 of the sound output cover 30 is bent at an arbitrary angle with respect to the front sound output cover 50, and in this bent state, the connection fitting to the recess 54a of the connection mounting portion 54 is performed. The rear sound emission lid 51 is held by the fitting force caused by the press-fitting of the protrusion 53 b of the portion 53. Thereby, the sound emission cover 30 opens toward the rear side, and the second sound emission hole 28 of the rear top plate 8 is opened. For this reason, when the performer operates the keyboard unit 10 to generate a musical sound from the speaker 26, the sound from the speaker 26 is emitted above the instrument case 1 through the second sound emitting hole 28, and this sound is released. The generated sound is emitted toward the rear side of the musical instrument case 1 by the sound emission lid 30.

このときに、連結部52を中心に後側放音蓋部51を後下がりに回転させて後天板8とほぼ平行な状態にすると、スピーカ26からの音を聴衆側に向けて集音するような指向性をもって放音させることができる。また、このときに、連結部52を中心に後側放音蓋部51を後上がりに回転させて後天板8に対して後上がりに傾斜させた状態にすると、スピーカ26からの音を聴衆側に向けて拡散するような指向性をもって放音させることができる。このため、聴衆者がスピーカ26から放音された演奏音を良好に聞くことができる。   At this time, if the rear sound emitting lid 51 is rotated rearward downward with the connecting portion 52 as the center so as to be substantially parallel to the rear top plate 8, the sound from the speaker 26 is collected toward the audience. Sound can be emitted with a great directivity. At this time, if the rear sound emitting lid 51 is rotated rearward up around the connecting portion 52 so as to be inclined rearward relative to the rear top plate 8, the sound from the speaker 26 is transmitted to the audience side. The sound can be emitted with a directivity that diffuses toward the sound. For this reason, the audience can hear the performance sound emitted from the speaker 26 satisfactorily.

このように、この第3実施形態の電子鍵盤楽器によれば、第1実施形態と同様の効果があるほか、放音蓋30を前側放音蓋部50と後側放音蓋部51とに分割し、前側放音蓋部50と後側放音蓋部51とを連結部52によって回転可能に連結し、かつこの連結部52によって前側放音蓋部50と後側放音蓋部51とを互いに任意の角度で傾斜させて保持するように構成したので、スピーカ26からの音を楽器ケース1の前後方向のいずれかの方向に向けて集音または拡散するような指向性をもたせて良好に放音させることができる。   As described above, according to the electronic keyboard instrument of the third embodiment, in addition to the same effects as those of the first embodiment, the sound emission lid 30 is changed into the front sound emission lid portion 50 and the rear sound emission lid portion 51. The front sound emitting lid portion 50 and the rear sound emitting lid portion 51 are rotatably connected by a connecting portion 52, and the front sound emitting lid portion 50 and the rear sound emitting lid portion 51 are connected by the connecting portion 52. Are held at an arbitrary angle with respect to each other, so that the sound from the speaker 26 has a directivity that collects or diffuses the sound in either the front-rear direction of the musical instrument case 1 or better. Can emit sound.

すなわち、連結部52は、前側放音蓋部50の後端面における両側に設けられた連結嵌合部53と、後側放音蓋部51の前端面における両側に設けられて連結嵌合部53が回転可能に装着する連結装着部54とを備え、連結装着部54に連結嵌合部53が嵌合した状態で回転し、放音蓋30の前側放音蓋部50と後側放音蓋部51とを任意の角度に折り曲げた状態で保持するように構成されていることにより、スピーカ26からの音を楽器ケース1の前後方向のいずれかの方向に向けて集音または拡散するような指向性をもたせて良好に放音させることができる。   That is, the connecting portions 52 are provided on both sides of the front end surface of the front sound emitting lid portion 50, and the connection fitting portions 53 are provided on both sides of the front end surface of the rear sound emitting lid portion 51. And a connection mounting portion 54 that is rotatably mounted, and rotates in a state where the connection fitting portion 53 is fitted to the connection mounting portion 54, so that the front sound emission lid portion 50 and the rear sound emission lid of the sound emission lid 30 are rotated. By being configured to hold the unit 51 in a state where it is bent at an arbitrary angle, the sound from the speaker 26 is collected or diffused in either the front or rear direction of the musical instrument case 1. Sound can be emitted well with directivity.

(第4実施形態)
次に、図9を参照して、この発明を電子鍵盤楽器に適用した第4実施形態について説明する。この場合には、図8に示された第3実施形態と同一部分に同一符号を付して説明する。
この電子鍵盤楽器は、図9に示すように、連結部52によって連結された箇所における前側放音蓋部50を楽器ケース1の後天板8に着脱可能に取り付け、かつ前側放音蓋部50を回転可能に保持する中間保持部60を備えた構成であり、これ以外は第3実施形態とほぼ同じ構成になっている。
(Fourth embodiment)
Next, a fourth embodiment in which the present invention is applied to an electronic keyboard instrument will be described with reference to FIG. In this case, the same parts as those in the third embodiment shown in FIG.
As shown in FIG. 9, the electronic keyboard instrument is configured such that the front sound emitting lid 50 is removably attached to the rear top plate 8 of the musical instrument case 1 at the place connected by the connecting portion 52, and the front sound emitting lid 50 is attached. The intermediate holding unit 60 is provided so as to be rotatable, and the other configuration is substantially the same as that of the third embodiment.

すなわち、この中間保持部60は、図9に示すように、楽器ケース1の後天板8における第2放音孔28の前後方向の中間部に対応する箇所に設けられた中間装着部61と、放音蓋30の前側放音蓋部50に設けられて中間装着部61に回転可能に取り付けられた中間嵌合部62とを備えている。   That is, as shown in FIG. 9, the intermediate holding portion 60 includes an intermediate mounting portion 61 provided at a location corresponding to the intermediate portion in the front-rear direction of the second sound emitting hole 28 in the rear top plate 8 of the musical instrument case 1. An intermediate fitting portion 62 provided on the front sound emitting lid portion 50 of the sound emitting lid 30 and rotatably attached to the intermediate mounting portion 61 is provided.

この場合、中間装着部61は、図9に示すように、楽器ケース1の後天板8における第2放音孔28の左右両側(図9では紙面の表裏面方向の両側)において、第2放音孔28の前後方向の中間部に対応する箇所にそれぞれ設けられている。この中間装着部61は、それぞれゴムなどの弾力を有する合成樹脂からなり、その各上面に開放されたほぼ球形状の凹部61aが形成された構成になっている。   In this case, as shown in FIG. 9, the intermediate mounting portion 61 has the second release on both the left and right sides of the second sound emission hole 28 in the back plate 8 of the musical instrument case 1 (both sides in the front and back direction of the paper surface in FIG. 9). The sound holes 28 are provided at locations corresponding to the intermediate portions in the front-rear direction. The intermediate mounting portion 61 is made of a synthetic resin having elasticity such as rubber, and has a configuration in which a substantially spherical recess 61a is formed on each upper surface thereof.

また、中間嵌合部62は、図9に示すように、放音蓋30の前側放音蓋部50の後部下面における両側(図9では紙面の表裏面方向の両側)に位置する箇所に取り付けられた取付脚部62aと、この取付脚部62aの下端部に取り付けられた球形状の突起部62bとを有している。これにより、中間装着部61は、その凹部61aに中間嵌合部62の突起部62bが上方から圧入されて嵌合し、この状態で中間嵌合部62を回転可能に保持するように構成されている。   Further, as shown in FIG. 9, the intermediate fitting portions 62 are attached to locations located on both sides (on both sides in the front and back direction of the paper in FIG. 9) of the rear lower surface of the front sound emitting lid portion 50 of the sound emitting lid 30. And a spherical protrusion 62b attached to the lower end of the attachment leg 62a. As a result, the intermediate mounting portion 61 is configured such that the projection 62b of the intermediate fitting portion 62 is press-fitted into the concave portion 61a from above and is fitted, and in this state, the intermediate fitting portion 62 is rotatably held. ing.

この場合、中間装着部61は、図9に示すように、中間嵌合部62の突起部62bが凹部61aに嵌合した状態で中間嵌合部62が回転した際に、放音蓋30の前側放音蓋部50を前上りに任意の角度で傾斜させた状態で保持するように構成されている。また、この中間装着部61は、その凹部61aに対する中間嵌合部62の突起部62bの圧入による嵌合力に抗して中間嵌合部62が引き上げられると、凹部61aから中間嵌合部62の突起部62bが抜け出すように構成されている。   In this case, as shown in FIG. 9, when the intermediate fitting portion 62 rotates when the intermediate fitting portion 62 rotates with the projection 62 b of the intermediate fitting portion 62 fitted in the concave portion 61 a as shown in FIG. 9. The front sound emitting lid 50 is configured to be held in a state where it is inclined forward at an arbitrary angle. Further, when the intermediate fitting portion 62 is pulled up against the fitting force caused by the press-fitting of the projection 62b of the intermediate fitting portion 62 with respect to the concave portion 61a, the intermediate mounting portion 61 is lifted from the concave portion 61a to the intermediate fitting portion 62. The protrusion 62b is configured to come out.

次に、この電子鍵盤楽器の作用について説明する。
まず、鍵盤蓋13を開いて鍵盤部10を上側に開放させ、この状態で演奏する前に放音蓋30を開いて第2放音孔28を開放する場合について説明する。このときに、演奏者がコンサートで演奏する際に、スピーカ26から放音された楽音を聴衆者と演奏者とに向けて放音させる場合には、図9に示すように、放音蓋30の前側放音蓋部50と後側放音蓋部51とをそれぞれ前側と後側とに向けて開放させる。
Next, the operation of this electronic keyboard instrument will be described.
First, a case will be described in which the keyboard lid 13 is opened and the keyboard portion 10 is opened upward, and the sound emitting lid 30 is opened and the second sound emitting hole 28 is opened before playing in this state. At this time, when the performer performs at the concert, when the musical sound emitted from the speaker 26 is emitted toward the audience and the performer, as shown in FIG. The front sound emitting lid portion 50 and the rear sound emitting lid portion 51 are opened toward the front side and the rear side, respectively.

このときには、中間装着部61に中間嵌合部62を嵌合させた状態で、まず、放音蓋30の後側放音蓋部51の後端部を持ち上げて、後側装着部36の凹部36aに対する後側嵌合部37の突起部37bの圧入による嵌合力に抗して、後側嵌合部37の突起部37bを後側装着部36の凹部36aから抜き出す。このときには、連結部52の連結嵌合部53の突起部53bが連結装着部54の凹部54aに圧入されて嵌合し、この状態で連結嵌合部53が回転可能に保持されている。   At this time, in a state where the intermediate fitting portion 62 is fitted to the intermediate mounting portion 61, first, the rear end portion of the rear sound emitting lid portion 51 of the sound emitting lid 30 is lifted, and the concave portion of the rear mounting portion 36 is raised. The protrusion 37b of the rear fitting portion 37 is extracted from the recess 36a of the rear mounting portion 36 against the fitting force of the protrusion 37b of the rear fitting portion 37 with respect to 36a. At this time, the protrusion 53b of the connection fitting portion 53 of the connection portion 52 is press-fitted into the recess 54a of the connection mounting portion 54 and is fitted, and the connection fitting portion 53 is rotatably held in this state.

このため、連結嵌合部53の突起部53bが連結装着部54の凹部54aに嵌合した状態で回転すると共に、連結装着部54の凹部54aに対する連結嵌合部53の突起部53bの圧入による嵌合力によって、放音蓋30の後側放音蓋部51が後部上りに傾斜した状態で保持される。これにより、放音蓋30の後側放音蓋部51が後上りに傾斜して開き、後天板8の第2放音孔28の後部側の半分が開放される。   Therefore, the protrusion 53b of the connection fitting portion 53 rotates in a state of being fitted in the recess 54a of the connection mounting portion 54, and the protrusion 53b of the connection fitting portion 53 is pressed into the recess 54a of the connection mounting portion 54. Due to the fitting force, the rear sound emission cover portion 51 of the sound emission cover 30 is held in a state of being inclined rearwardly upward. As a result, the rear sound output cover 51 of the sound output cover 30 is inclined and opened rearward, and the rear half of the second sound output hole 28 of the rear top plate 8 is opened.

この状態で、放音蓋30の前側放音蓋部50の前端部を持ち上げて、前側装着部34の凹部34aに対する前側嵌合部35の突起部35bの圧入による嵌合力に抗して、前側嵌合部35の突起部35bを前側装着部34の凹部34aから抜き出す。このときには、中間嵌合部62の突起部62bが中間装着部61の凹部61aに圧入されて嵌合し、この状態で中間嵌合部62が回転可能に保持されている。   In this state, the front end portion of the front sound emitting lid portion 50 of the sound emitting lid 30 is lifted, and the front side against the fitting force due to the press-fitting of the projection 35b of the front fitting portion 35 with respect to the concave portion 34a of the front mounting portion 34 The protruding portion 35 b of the fitting portion 35 is extracted from the concave portion 34 a of the front side mounting portion 34. At this time, the protruding portion 62b of the intermediate fitting portion 62 is press-fitted into and fitted into the concave portion 61a of the intermediate mounting portion 61, and the intermediate fitting portion 62 is rotatably held in this state.

このため、中間嵌合部62の突起部62bが中間装着部61の凹部61aに嵌合した状態で回転すると共に、中間装着部61の凹部61aに対する中間嵌合部62の突起部62bの圧入による嵌合力によって、放音蓋30の前側放音蓋部50が前部上りに傾斜した状態で保持される。これにより、放音蓋30の前側放音蓋部50が前部上りに傾斜して開き、後天板8の第2放音孔28の前部側の半分が開放される。   For this reason, the protrusion 62b of the intermediate fitting part 62 rotates in a state of being fitted in the recess 61a of the intermediate mounting part 61, and the protrusion 62b of the intermediate fitting part 62 is pressed into the recess 61a of the intermediate mounting part 61. Due to the fitting force, the front sound emission cover portion 50 of the sound emission cover 30 is held in a state where it is inclined upward in the front part. As a result, the front sound emission cover portion 50 of the sound emission cover 30 is inclined and opened to the front, and the front half of the second sound emission hole 28 of the rear top plate 8 is opened.

この状態で、演奏者が鍵盤部10を押鍵操作してスピーカ26から楽音を発生させると、そのスピーカ26からの音が第2放音孔28から楽器ケース1の上方に放音され、この放音された音が放音蓋30の前側放音蓋部50と後側放音蓋部51とによって楽器ケース1の前側と後側との両方に放音される。これにより、スピーカ26から放音された楽音を聴衆者と演奏者との両方が良好に聞くことができる。   In this state, when the performer performs a key operation on the keyboard unit 10 to generate a musical sound from the speaker 26, the sound from the speaker 26 is emitted from the second sound emitting hole 28 above the instrument case 1, The emitted sound is emitted to both the front side and the rear side of the musical instrument case 1 by the front sound emitting lid portion 50 and the rear sound emitting lid portion 51 of the sound emitting lid 30. Thereby, both a listener and a player can hear the musical sound emitted from the speaker 26 satisfactorily.

また、スピーカ26から放音された楽音を演奏者のみに向けて放音させる場合には、放音蓋30の中間部を持ち上げて、中間装着部61の凹部61aに対する中間嵌合部62の突起部62bの圧入による嵌合力に抗して、中間嵌合部62の突起部62bを中間装着部61の凹部61aから抜き出す。この状態で、第1実施形態と同様、放音蓋30の前側放音蓋部50の前端部を持ち上げて、前側嵌合部35の突起部35bを前側装着部34の凹部34aから抜き出す。   Further, when the musical sound emitted from the speaker 26 is emitted toward only the performer, the intermediate portion of the sound emitting lid 30 is lifted and the protrusion of the intermediate fitting portion 62 with respect to the concave portion 61 a of the intermediate mounting portion 61. The protrusion 62b of the intermediate fitting portion 62 is extracted from the concave portion 61a of the intermediate mounting portion 61 against the fitting force due to the press-fitting of the portion 62b. In this state, as in the first embodiment, the front end portion of the front sound emitting lid portion 50 of the sound emitting lid 30 is lifted, and the protrusion 35b of the front fitting portion 35 is extracted from the concave portion 34a of the front mounting portion 34.

すると、前側嵌合部35の突起部35bが前側装着部34の凹部34aに嵌合した状態で回転すると共に、前側装着部34の凹部34aに対する前側嵌合部35の突起部35bの圧入による嵌合力によって、放音蓋30が前部上りに傾斜した状態で保持される。これにより、放音蓋30が前部上りに傾斜して開き、後天板8の第2放音孔28が開放される。この場合にも、第3実施形態と同様、前側放音蓋部50を連結部52で折り曲げることにより、スピーカ26からの音を演奏者に向けて集音または拡散するような指向性をもたせて放音させることができる。   Then, the projection 35b of the front fitting portion 35 rotates in a state where it is fitted in the recess 34a of the front mounting portion 34, and the projection 35b of the front fitting portion 35 is press-fitted into the recess 34a of the front mounting portion 34. Due to the resultant force, the sound emitting lid 30 is held in a state where it is inclined forwardly upward. Thereby, the sound emission cover 30 is inclined and opened to the front part, and the second sound emission hole 28 of the rear top plate 8 is opened. Also in this case, as in the third embodiment, the front sound emitting lid 50 is bent at the connecting portion 52 so that the sound from the speaker 26 is collected or diffused toward the performer. Sound can be emitted.

同様に、スピーカ26から放音される楽音を聴衆側のみに向けて放音させる場合には、放音蓋30の中間部を持ち上げて、中間装着部61の凹部61aに対する中間嵌合部62の突起部62bの圧入による嵌合力に抗して、中間嵌合部62の突起部62bを中間装着部61の凹部61aから抜き出す。この状態で、放音蓋30の後側放音蓋部51の後端部を持ち上げて、後側嵌合部37の突起部37bを後側装着部36の凹部36aから抜き出す。   Similarly, when the musical sound emitted from the speaker 26 is emitted toward only the audience side, the intermediate portion of the sound emitting lid 30 is lifted and the intermediate fitting portion 62 of the intermediate mounting portion 61 with respect to the concave portion 61a is lifted. The protrusion 62b of the intermediate fitting part 62 is extracted from the recess 61a of the intermediate mounting part 61 against the fitting force due to the press-fitting of the protrusion 62b. In this state, the rear end portion of the rear sound emitting lid portion 51 of the sound emitting lid 30 is lifted, and the protruding portion 37b of the rear fitting portion 37 is extracted from the concave portion 36a of the rear mounting portion 36.

すると、後側嵌合部37の突起部37bが後側装着部36の凹部36aに嵌合した状態で回転すると共に、後側装着部36の凹部36aに対する後側嵌合部37の突起部37bの圧入による嵌合力によって、放音蓋30が後部上りに傾斜した状態で保持される。これにより、放音蓋30が後部上りに傾斜して開き、後天板8の第2放音孔28が開放される。この場合にも、第3実施形態と同様、後側放音蓋部50を連結部52で折り曲げることにより、スピーカ26からの音を聴衆者に向けて集音または拡散するような指向性をもたせて放音させることができる。   Then, the protrusion 37b of the rear fitting portion 37 rotates in a state of being fitted in the recess 36a of the rear mounting portion 36, and the protrusion 37b of the rear fitting portion 37 with respect to the recess 36a of the rear mounting portion 36 is rotated. The sound emission lid 30 is held in a state where it is tilted rearward upward by the fitting force due to the press-fitting. Thereby, the sound emission lid 30 is inclined and opened rearwardly upward, and the second sound emission hole 28 of the rear top plate 8 is opened. Also in this case, as in the third embodiment, the rear sound emitting lid 50 is bent at the connecting portion 52 so that the sound from the speaker 26 is collected or diffused toward the audience. Sound can be emitted.

このように、この第4実施形態の電子鍵盤楽器によれば、第1、第3の各実施形態と同様の作用効果があるほか、連結部52によって連結された箇所における前側放音蓋部50を楽器ケース1の後天板8に着脱可能に取り付け、かつ前側放音蓋部50を回転可能に保持する中間保持部60を備えているので、前側放音蓋部50と後側放音蓋部51とを楽器ケース1の前後方向に向けて開放させて、演奏者と聴衆者との両方に向けて放音させることができる。   As described above, according to the electronic keyboard instrument of the fourth embodiment, there are the same functions and effects as those of the first and third embodiments, and the front sound emission cover portion 50 at the place connected by the connecting portion 52. Is attached to the rear top plate 8 of the musical instrument case 1 and includes an intermediate holding portion 60 that rotatably holds the front sound emitting lid portion 50. Therefore, the front sound emitting lid portion 50 and the rear sound emitting lid portion are provided. 51 can be opened in the front-rear direction of the musical instrument case 1 to emit sound toward both the performer and the audience.

この場合、中間保持部60は、楽器ケース1の後天板8における第2放音孔28の前後方向の中間部に対応する箇所に設けられた中間装着部61と、連結部52によって連結された箇所における前側放音蓋部50に設けられて中間装着部61に着脱可能に取り付けられ、かつ中間装着部61に対して回転して前側放音蓋部50と後側放音蓋部51とを任意の傾斜角度で保持する中間嵌合部62と、を備えているので、中間装着部61に中間嵌合部62を嵌合させた状態で、中間嵌合部62を中心に前側放音蓋部50と後側放音蓋部51とを回転させることができ、これにより前側放音蓋部50と後側放音蓋部51とを楽器ケース1の前後方向に向けて開放させて、演奏者と聴衆者との両方に向けて放音させることができる。   In this case, the intermediate holding portion 60 is connected to the intermediate mounting portion 61 provided at a position corresponding to the intermediate portion in the front-rear direction of the second sound emitting hole 28 in the rear panel 8 of the musical instrument case 1 by the connecting portion 52. The front sound emitting lid portion 50 is provided at the location, is detachably attached to the intermediate mounting portion 61, and rotates with respect to the intermediate mounting portion 61 to connect the front sound emitting lid portion 50 and the rear sound emitting lid portion 51. And an intermediate fitting portion 62 that is held at an arbitrary inclination angle, so that the front sound emitting lid is centered on the intermediate fitting portion 62 with the intermediate fitting portion 62 fitted to the intermediate mounting portion 61. The part 50 and the rear sound emitting lid part 51 can be rotated, whereby the front sound emitting cover part 50 and the rear sound emitting cover part 51 are opened in the front-rear direction of the musical instrument case 1 to perform. Sound can be emitted to both the listener and the audience.

すなわち、この電子鍵盤楽器では、中間装着部61に中間嵌合部62を嵌合させた状態で、放音蓋30の後側放音蓋部51の後端部を持ち上げて、放音蓋30の後側放音蓋部51を後部上りに傾斜させた状態で保持することができると共に、放音蓋30の前側放音蓋部50の前端部を持ち上げて、放音蓋30の前側放音蓋部50を前部上りに傾斜させた状態で保持することができる。これにより、後側放音蓋部51によって後天板8の第2放音孔28の後部側の半分を聴衆側に向けて開放することができると共に、放音蓋30の前側放音蓋部50によって後天板8の第2放音孔28の前部側の半分を演奏者側に向けて開放することができる。   That is, in this electronic keyboard instrument, with the intermediate fitting portion 61 fitted to the intermediate mounting portion 61, the rear end portion of the rear sound emitting lid portion 51 of the sound emitting lid 30 is lifted up, and the sound emitting lid 30. The rear sound emitting lid portion 51 can be held in a state where the rear sound emitting lid portion 51 is tilted rearward upward, and the front end portion of the front sound emitting lid portion 50 of the sound emitting lid 30 is lifted to raise the front sound emission of the sound emitting lid 30. The lid 50 can be held in a state where the lid 50 is inclined upward. As a result, the rear half of the second sound emission hole 28 of the rear ceiling plate 8 can be opened toward the audience by the rear sound emission cover 51 and the front sound emission cover 50 of the sound emission cover 30 can be opened. Thus, the front half of the second sound emission hole 28 of the back plate 8 can be opened toward the performer side.

なお、上述した第4実施形態では、中間嵌合部62を連結部52の近傍に位置する前側放音蓋部50の下面に設けた場合について述べたが、これに限らず、中間嵌合部62を連結部52の近傍に位置する後側放音蓋部51の下面に設けた構成であっても良い。   In the above-described fourth embodiment, the case where the intermediate fitting portion 62 is provided on the lower surface of the front sound emitting lid portion 50 located in the vicinity of the connecting portion 52 has been described. The configuration may be such that 62 is provided on the lower surface of the rear sound emitting lid portion 51 located in the vicinity of the connecting portion 52.

また、上述した第3、第4の各実施形態では、前側装着部34と後側装着部36とを楽器ケース1の後天板8上に設けた場合について述べたが、これに限らず、例えば第2実施形態のように、前側装着部34を上下方向に伸縮する前側支持部材40に取り付けると共に、後側装着部36を上下方向に伸縮する後側支持部材41に取り付けるように構成しても良い。   In each of the third and fourth embodiments described above, the case where the front mounting portion 34 and the rear mounting portion 36 are provided on the rear top plate 8 of the musical instrument case 1 is described. As in the second embodiment, the front mounting portion 34 may be attached to the front support member 40 that extends and contracts in the vertical direction, and the rear mounting portion 36 may be attached to the rear support member 41 that extends and contracts in the vertical direction. good.

また、上述した第1〜第4の各実施形態では、前側装着部34、後側装着部36、連結装着54、および中間装着部61にほぼ球状の凹部34a、36a、54a、61aを形成し、前側嵌合部35、後側嵌合部37、連結嵌合部53、および中間嵌合部62に球状の突起部35b、37b、53b、62bを設けた場合について述べたが、これに限らず、例えば凹部34a、36a、54a、61aを円弧状に形成し、突起部35b、37b、53b、62bを丸棒状に形成しても良い。   In each of the first to fourth embodiments described above, substantially spherical recesses 34a, 36a, 54a, 61a are formed in the front mounting portion 34, the rear mounting portion 36, the connection mounting 54, and the intermediate mounting portion 61. Although the case where spherical protrusions 35b, 37b, 53b, 62b are provided on the front fitting part 35, the rear fitting part 37, the coupling fitting part 53, and the intermediate fitting part 62 has been described, the present invention is not limited thereto. For example, the recesses 34a, 36a, 54a, 61a may be formed in an arc shape, and the protrusions 35b, 37b, 53b, 62b may be formed in a round bar shape.

さらに、上述した第1〜第4の各実施形態では、楽器ケース1内における鍵盤部10の後方にスピーカ26を下向きに配置した場合について述べたが、これに限らず、楽器ケース1内における鍵盤部10の後方にスピーカ26を上向きに配置しても良く、またスピーカ26を前向きに配置しても良い。   Further, in each of the first to fourth embodiments described above, the case where the speaker 26 is disposed downward behind the keyboard portion 10 in the musical instrument case 1 is described. The speaker 26 may be disposed upward behind the unit 10 and the speaker 26 may be disposed forward.

以上、この発明のいくつかの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、内部に鍵盤部が配置される楽器ケースと、前記楽器ケース内における前記鍵盤部の後方に配置されたスピーカと、前記楽器ケース上に開閉可能に保持され、かつ閉状態において前記スピーカで発生した音を放音するための放音孔を塞ぐ放音蓋と、この放音蓋を前記楽器ケースの前方向および後方向のいずれかに向けて選択的に開放する開放選択部と、を備えていることを特徴とする鍵盤楽器である。
(Appendix)
According to the first aspect of the present invention, there is provided a musical instrument case in which a keyboard portion is disposed, a speaker disposed behind the keyboard portion in the musical instrument case, and an openable / closable state on the musical instrument case. A sound emitting lid that closes a sound emitting hole for emitting sound generated by the speaker in the closed state, and selectively opens the sound emitting lid toward either the front direction or the rear direction of the instrument case. And a release selection unit.

請求項2に記載の発明は、請求項1に記載の鍵盤楽器において、前記開放選択部は、前記放音蓋の前部を前記楽器ケースの上部に対して着脱可能に取り付け、かつ前記放音蓋の前部を回転可能に保持する前側保持部と、前記放音蓋の後部を前記楽器ケースの上部に対して着脱可能に取り付け、かつ前記放音蓋の後部を回転可能に保持する後側保持部とを備えていることを特徴とする鍵盤楽器である。   According to a second aspect of the present invention, in the keyboard instrument according to the first aspect, the opening selection unit detachably attaches a front portion of the sound emission lid to an upper portion of the musical instrument case, and the sound emission A front holding portion that rotatably holds the front portion of the lid, and a rear side that detachably attaches the rear portion of the sound emitting lid to the upper portion of the instrument case and holds the rear portion of the sound emitting lid rotatably A keyboard instrument comprising a holding portion.

請求項3に記載の発明は、請求項2に記載の鍵盤楽器において、前記前側保持部は、前記楽器ケースの上部における前記放音孔の前部に設けられた前側装着部と、前記放音蓋の前部に設けられて前記前側装着部に着脱可能に取り付けられ、かつ前記前側装着部に対して回転して前記放音蓋を任意の傾斜角度で保持する前側嵌合部とを備え、
前記後側保持部は、前記楽器ケースの上部における前記放音孔の後部に設けられた後側装着部と、前記放音蓋の後部に設けられて前記後側装着部に着脱可能に取り付けられ、かつ前記前側装着部に対して回転して前記放音蓋を任意の傾斜角度で保持する後側嵌合部とを備えていることを特徴とする鍵盤楽器である。
According to a third aspect of the present invention, in the keyboard instrument according to the second aspect, the front holding portion includes a front mounting portion provided at a front portion of the sound emitting hole in an upper portion of the musical instrument case, and the sound emission. A front fitting portion provided at a front portion of the lid, detachably attached to the front mounting portion, and rotated with respect to the front mounting portion to hold the sound emitting lid at an arbitrary inclination angle;
The rear holding part is detachably attached to the rear mounting part provided at the rear part of the sound emission hole in the upper part of the musical instrument case and the rear part of the sound emission lid. And a rear fitting portion that rotates with respect to the front mounting portion and holds the sound emitting lid at an arbitrary inclination angle.

請求項4に記載の発明は、請求項3に記載の鍵盤楽器において、前記前側装着部は前記楽器ケースの上部における前記放音孔の前部に上下方向に伸縮自在に設けられた前側支持部材に取り付けられており、前記後側装着部は前記楽器ケースの上部における前記放音孔の後部に上下方向に伸縮自在に設けられた後側支持部材に取り付けられていることを特徴とする鍵盤楽器である。   According to a fourth aspect of the present invention, in the keyboard musical instrument according to the third aspect, the front side mounting portion is provided in a front portion of the sound emitting hole at an upper portion of the musical instrument case so as to be extendable in the vertical direction. The keyboard mounting instrument is characterized in that the rear mounting part is attached to a rear support member provided in a rear part of the sound emitting hole in the upper part of the instrument case so as to be vertically expandable and contractible. It is.

請求項5に記載の発明は、内部に鍵盤部が配置される楽器ケースと、前記楽器ケース内における前記鍵盤部の後方に配置されたスピーカと、前記楽器ケース上に開閉可能に保持され、かつ閉状態において前記スピーカで発生した音を放音するための放音孔を塞ぐ放音蓋と、この放音蓋を前記楽器ケースの前方向および後方向に開放する開放選択部と、を備えていることを特徴とする鍵盤楽器である。   According to a fifth aspect of the present invention, there is provided a musical instrument case having a keyboard portion disposed therein, a speaker disposed behind the keyboard portion in the musical instrument case, and being held on the musical instrument case so as to be openable and closable. A sounding lid that closes a sound emitting hole for emitting sound generated by the speaker in a closed state; and an opening selection unit that opens the sounding cover in the forward and backward directions of the instrument case. It is a keyboard instrument characterized by

請求項6に記載の発明は、請求項5に記載の鍵盤楽器において、前記放音蓋は、前側放音蓋部と後側放音蓋部とに分割され、前記前側放音蓋部と前記後側放音蓋部とが連結部によって回転可能に連結され、かつこの連結部によって前記前側放音蓋部と前記後側放音蓋部とが互いに任意の角度で傾斜して保持されることを特徴とする鍵盤楽器である。   According to a sixth aspect of the present invention, in the keyboard instrument according to the fifth aspect, the sound emitting lid is divided into a front sound emitting lid portion and a rear sound emitting lid portion, and the front sound emitting lid portion and the The rear side sound emitting lid part is rotatably connected by a connecting part, and the front side sound emitting cover part and the rear side sound emitting cover part are held at an angle with each other by this connecting part. It is a keyboard instrument characterized by

請求項7に記載の発明は、請求項6に記載の鍵盤楽器において、前記連結部によって連結された箇所における前記前側放音蓋部と前記後側放音蓋部との一方を前記楽器ケースの上部に対して着脱可能に取り付け、かつ前記前側放音蓋部と前記後側放音蓋部との前記一方を回転可能に保持する中間保持部とを備えていることを特徴とする鍵盤楽器である。   According to a seventh aspect of the present invention, in the keyboard instrument according to the sixth aspect of the present invention, one of the front sound emitting lid portion and the rear sound emitting lid portion at a position connected by the connecting portion is connected to the musical instrument case. A keyboard instrument comprising an intermediate holding portion that is detachably attached to an upper portion and that rotatably holds the one of the front sound emitting lid portion and the rear sound emitting lid portion. is there.

請求項8に記載の発明は、請求項7に記載の鍵盤楽器において、前記中間保持部は、前記楽器ケースの上部における前記放音孔の前後方向の中間部に対応する箇所に設けられた中間装着部と、前記連結部によって連結された箇所における前記前側放音蓋部と前記後側放音蓋部との一方に設けられて前記中間装着部に着脱可能に取り付けられ、かつ前記前側装着部に対して回転して前記前側放音蓋部と前記後側放音蓋部とを任意の傾斜角度で保持する中間嵌合部と、を備えていることを特徴とする鍵盤楽器である。   According to an eighth aspect of the present invention, in the keyboard instrument according to the seventh aspect, the intermediate holding portion is an intermediate portion provided at a location corresponding to an intermediate portion in the front-rear direction of the sound emission hole in the upper portion of the musical instrument case. A front mounting part that is provided on one of the mounting part and one of the front side sounding cover part and the rear side sounding cover part connected to the connecting part, and is detachably attached to the intermediate mounting part. The keyboard instrument is provided with an intermediate fitting portion that rotates relative to the front and holds the front sound emitting lid portion and the rear sound emitting lid portion at an arbitrary inclination angle.

1 楽器ケース
6 天板
7 前天板
8 後天板
10 鍵盤部
11 鍵盤シャーシ
12 複数の鍵
13 鍵盤蓋
14 蓋ガイド部
15 前蓋
16 後蓋
17 蝶番
26 スピーカ
27 第1放音孔
28 第2放音孔
30 放音蓋
31 開放選択部
32 前側保持部
33 後側保持部
34 前側装着部
35 前側嵌合部
36 後側装着部
37 後側嵌合部
40 前側支持部材
41 後側支持部材
43 大径のパイプ
44 小径のパイプ
45 軸部
50 前側放音蓋部
51 後側放音蓋部
52 連結部
53 連結嵌合部
54 連結装着部
60 中間保持部
61 中間装着部
62 中間嵌合部
DESCRIPTION OF SYMBOLS 1 Musical instrument case 6 Top plate 7 Front top plate 8 Back top plate 10 Keyboard part 11 Keyboard chassis 12 Several keys 13 Keyboard cover 14 Cover guide part 15 Front cover 16 Rear cover 17 Hinge 26 Speaker 27 First sound emission hole 28 Second sound emission Hole 30 Sound emitting lid 31 Open selection part 32 Front side holding part 33 Rear side holding part 34 Front side mounting part 35 Front side fitting part 36 Rear side mounting part 37 Rear side fitting part 40 Front side supporting member 41 Rear side supporting member 43 Large diameter Pipe 44 Small-diameter pipe 45 Shaft portion 50 Front sound emitting lid portion 51 Rear sound emitting lid portion 52 Connection portion 53 Connection fitting portion 54 Connection attachment portion 60 Intermediate holding portion 61 Intermediate attachment portion 62 Intermediate engagement portion

Claims (9)

内部に鍵盤部が配置される楽器ケースと、
前記楽器ケース内における前記鍵盤部の後方に配置されたスピーカと、
前記スピーカで発生した音を放音するための第一放音孔と、
前記楽器ケース上に開閉可能に保持され、かつ閉状態において前記スピーカで発生した音を放音するための第二放音孔を塞ぐ放音蓋と、
この放音蓋を前記楽器ケースの前方向および後方向のいずれかに向けて選択的に開放する開放選択部と、
を備えていることを特徴とする鍵盤楽器。
A musical instrument case with a keyboard inside
A speaker arranged behind the keyboard in the instrument case;
A first sound emitting hole for emitting sound generated by the speaker;
A sound emitting lid that is held on the instrument case so as to be openable and closable, and closes a second sound emitting hole for emitting sound generated by the speaker in the closed state;
An opening selection section for selectively opening the sound emission lid toward either the front direction or the rear direction of the instrument case;
A keyboard instrument characterized by comprising
請求項1に記載の鍵盤楽器において、鍵盤蓋を有し、The keyboard instrument according to claim 1, further comprising a keyboard lid,
前記鍵盤蓋が開かれ前記鍵盤部が解放される際に、前記鍵盤蓋を鍵盤部の後部とスピーカとの間に配置することにより、前記鍵盤蓋が前記第二放音孔を閉塞していないことを特徴とする鍵盤楽器。When the keyboard cover is opened and the keyboard part is released, the keyboard cover does not block the second sound emitting hole by arranging the keyboard cover between the rear part of the keyboard part and the speaker. A keyboard instrument characterized by that.
請求項1又は2に記載の鍵盤楽器において、前記開放選択部は、前記放音蓋の前部を前記楽器ケースの上部に対して着脱可能に取り付け、かつ前記放音蓋の前部を回転可能に保持する前側保持部と、前記放音蓋の後部を前記楽器ケースの上部に対して着脱可能に取り付け、かつ前記放音蓋の後部を回転可能に保持する後側保持部とを備えていることを特徴とする鍵盤楽器。 3. The keyboard instrument according to claim 1, wherein the opening selection unit is detachably attached to the upper part of the musical instrument case and the front part of the sounding lid is rotatable. And a rear holding part that removably attaches the rear part of the sound emitting lid to the upper part of the instrument case and rotatably holds the rear part of the sound emitting lid. A keyboard instrument characterized by that. 請求項に記載の鍵盤楽器において、前記前側保持部は、前記楽器ケースの上部における前記第二放音孔の前部に設けられた前側装着部と、前記放音蓋の前部に設けられて前記前側装着部に着脱可能に取り付けられ、かつ前記前側装着部に対して回転して前記放音蓋を任意の傾斜角度で保持する前側嵌合部とを備え、
前記後側保持部は、前記楽器ケースの上部における前記第二放音孔の後部に設けられた後側装着部と、前記放音蓋の後部に設けられて前記後側装着部に着脱可能に取り付けられ、かつ前記前側装着部に対して回転して前記放音蓋を任意の傾斜角度で保持する後側嵌合部とを備えていることを特徴とする鍵盤楽器。
4. The keyboard instrument according to claim 3 , wherein the front holding portion is provided at a front mounting portion provided at a front portion of the second sound emitting hole in an upper portion of the musical instrument case and at a front portion of the sound emitting lid. A front fitting portion that is detachably attached to the front mounting portion and rotates with respect to the front mounting portion to hold the sound emitting lid at an arbitrary inclination angle,
The rear holding portion is provided at a rear portion of the second sound emission hole in the upper portion of the musical instrument case, and is provided at a rear portion of the sound emission lid so as to be detachable from the rear attachment portion. A keyboard instrument comprising: a rear fitting portion that is attached and rotates with respect to the front mounting portion to hold the sound emitting lid at an arbitrary inclination angle.
請求項に記載の鍵盤楽器において、前記前側装着部は前記楽器ケースの上部における前記第二放音孔の前部に上下方向に伸縮自在に設けられた前側支持部材に取り付けられており、前記後側装着部は前記楽器ケースの上部における前記第二放音孔の後部に上下方向に伸縮自在に設けられた後側支持部材に取り付けられていることを特徴とする鍵盤楽器。 5. The keyboard instrument according to claim 4 , wherein the front mounting portion is attached to a front support member provided in a front portion of the second sound emitting hole in an upper portion of the musical instrument case so as to be extendable in a vertical direction. The keyboard instrument according to claim 1, wherein the rear mounting portion is attached to a rear support member provided in a rear portion of the second sound emitting hole in the upper portion of the musical instrument case so as to be extendable in the vertical direction. 内部に鍵盤部が配置される楽器ケースと、
前記楽器ケース内における前記鍵盤部の後方に配置されたスピーカと、
前記スピーカで発生した音を放音するための第一放音孔と、
前記楽器ケース上に開閉可能に保持され、かつ閉状態において前記スピーカで発生した音を放音するための第二放音孔を塞ぐ放音蓋と、
この放音蓋を前記楽器ケースの前方向および後方向に開放する開放選択部と、
を備えていることを特徴とする鍵盤楽器。
A musical instrument case with a keyboard inside
A speaker arranged behind the keyboard in the instrument case;
A first sound emitting hole for emitting sound generated by the speaker;
A sound emitting lid that is held on the instrument case so as to be openable and closable, and closes a second sound emitting hole for emitting sound generated by the speaker in the closed state;
An opening selection section for opening the sound emission lid in the front direction and the rear direction of the instrument case;
A keyboard instrument characterized by comprising
請求項に記載の鍵盤楽器において、前記放音蓋は、前側放音蓋部と後側放音蓋部とに分割され、前記前側放音蓋部と前記後側放音蓋部とが連結部によって回転可能に連結され、かつこの連結部によって前記前側放音蓋部と前記後側放音蓋部とが互いに任意の角度で傾斜して保持されることを特徴とする鍵盤楽器。 The keyboard instrument according to claim 6 , wherein the sound emission cover is divided into a front sound emission cover part and a rear sound emission cover part, and the front sound emission cover part and the rear sound emission cover part are connected to each other. A keyboard instrument characterized in that the front sound emitting lid portion and the rear sound emitting lid portion are held at an arbitrary angle by the connecting portion so as to be rotatable. 請求項に記載の鍵盤楽器において、前記連結部によって連結された箇所における前記前側放音蓋部と前記後側放音蓋部との一方を前記楽器ケースの上部に対して着脱可能に取り付け、かつ前記前側放音蓋部と前記後側放音蓋部との前記一方を回転可能に保持する中間保持部とを備えていることを特徴とする鍵盤楽器。 The keyboard instrument according to claim 7 , wherein one of the front sound emitting lid and the rear sound emitting lid at a location connected by the connecting portion is detachably attached to an upper portion of the instrument case, A keyboard instrument comprising: an intermediate holding portion that rotatably holds the one of the front sound emitting lid portion and the rear sound emitting lid portion. 請求項に記載の鍵盤楽器において、前記中間保持部は、前記楽器ケースの上部における前記第二放音孔の前後方向の中間部に対応する箇所に設けられた中間装着部と、前記連結部によって連結された箇所における前記前側放音蓋部と前記後側放音蓋部との一方に設けられて前記中間装着部に着脱可能に取り付けられ、かつ前記前側装着部に対して回転して前記前側放音蓋部と前記後側放音蓋部とを任意の傾斜角度で保持する中間嵌合部と、を備えていることを特徴とする鍵盤楽器。 The keyboard instrument according to claim 8 , wherein the intermediate holding portion includes an intermediate mounting portion provided at a position corresponding to an intermediate portion in the front-rear direction of the second sound emitting hole in an upper portion of the musical instrument case, and the connecting portion. Provided at one of the front side sound emitting lid part and the rear side sound emitting lid part at a place connected by the detachably attached to the intermediate mounting part, and rotated with respect to the front side mounting part A keyboard instrument comprising: an intermediate fitting portion that holds the front sound emitting lid portion and the rear sound emitting lid portion at an arbitrary inclination angle.
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