しかしながら、前述した従来の鍵盤装置では、鍵やハンマの幅（厚さ）に収まる大きさで、鍵の操作時等に、隣接するクリックゴムの間で悪影響が生じないように、クリックゴムの寸法を決めているため、従来の鍵盤装置が備えるクリックゴムでは、小さな反力しか発生できない。また、鍵スイッチのスイッチ本体によっても反力は発生するが、スイッチ本体単体で発生する反力は、上述のクリックゴムの寸法の制約から小さくなってしまい、さらには、クリックゴムの反力がピークに達するときと、スイッチ本体の反力がピークに達するときとに時間のずれが生じると、良好なクリック感を得ることができない。
However, in the conventional keyboard device described above, the size of the click rubber is small enough to fit within the width (thickness) of the key or hammer, so that there is no adverse effect between adjacent click rubbers when the key is operated. Therefore, the click rubber provided in the conventional keyboard device can generate only a small reaction force. Although the reaction force is also generated by the switch body of the key switch, the reaction force generated by the switch body itself is reduced due to the above-mentioned restrictions on the size of the click rubber, and the click rubber reaction force peaks. If a time lag occurs between when the switch reaches the peak and when the reaction force of the switch body reaches the peak, a good click feeling cannot be obtained.
本発明は、このような問題に対処するためになされたもので、その目的は、操作子を操作したときに十分な大きさでかつ良好なクリック感を得ることのできる反力を発生できる操作子装置を提供することである。なお、下記本発明の各構成要件の記載においては、本発明の理解を容易にするために、実施形態の対応箇所の符号を括弧内に記載しているが、本発明の構成要件は、実施形態の符号によって示された対応箇所の構成に限定解釈されるべきものではない。
The present invention has been made in order to cope with such problems, and the purpose thereof is an operation capable of generating a reaction force that is sufficiently large and can obtain a good click feeling when the operation element is operated. It is to provide a child device. In the description of each constituent element of the present invention below, the reference numerals of corresponding portions of the embodiment are shown in parentheses in order to facilitate understanding of the present invention. The present invention should not be construed as being limited to the configurations of the corresponding portions indicated by the reference numerals of the forms.
前述した目的を達成するため、本発明に係る操作子装置の構成上の特徴は、押圧操作により第１の支点（Ｏ，Ｏ１，６１ａ，８２ａ，９２ｄ，１０７ａ，１４１ａ，１５１ａ，１６１ａ，１７１ａ，１８２ａ，１９１ａ）を中心として上下に回動する操作子（１１，６１，７１，８１，９２，１０１，１１１，１４１，１５１，１６１，１７１，１８１，１９１）と、互いに異なる位置に配設されて操作子の押圧操作により操作子に対する反力を発生し、反力が増加してピークに達した後に減少する特性を有する複数の反力発生部材（２５，２６，５４，５５，６５，６６，７５，７６，８５，８６，９８，９９，１０５，１０６，１４８ａ，１４８ｂ，１５８ａ，１５８ｂ，１６８ａ，１６８ｂ，１７８ａ，１７８ｂ，１８４，１８５，１８６，１９８ａ，１９８ｂ）とを有し、複数の反力発生部材に押圧により弾性変形する部分（２５ａ，２５ｂ，２６ａ，２６ｂ，５４ａ，５４ｂ，５５ａ，５５ｂ，１０５ｂ，１０６ｂ）が備わっており、弾性変形する部分は、操作子の押圧操作により複数の反力発生部材を押圧する部分の回動の中心点（Ｏ，１５ｆ，６１ａ，８２ａ，９２ｄ，１０７ａ，１４１ａ，１５１ａ，１６１ａ，１７３ａ，１８２ａ，１９７ａ）からの距離に比例した大きさの相似形状に形成され、複数の反力発生部材が発生する反力は、操作子の所定のストローク位置で同時にピークに達することにある。
In order to achieve the above-described object, the structural features of the operator device according to the present invention include the first fulcrum (O, O1, 61a, 82a, 92d, 107a, 141a, 151a, 161a, 171a, 182a, 191a) and the operation elements (11, 61, 71, 81, 92, 101, 111, 141, 151, 161, 171, 181, 191) that rotate up and down are arranged at different positions. A plurality of reaction force generating members (25 , 26 , 54 , 55 , 65) having a characteristic of generating a reaction force against the operation member by pressing the operation member and decreasing after the reaction force increases and reaches a peak. , 66, 7 5,76,85,86,98,99,105,106, 1 48a , 148b, 1 58a, 158b, 1 68a, 168b, 1 78a, 178b, 1 84, 185 , 186 , 198a, 198b), and a plurality of reaction force generating members that are elastically deformed by pressing (25a, 25b, 26a, 26b, 54a, 54b, 55a, 55b, 105b, 106b). The elastically deformed portions are the rotation center points (O, 15f, 61a, 82a, 92d, 107a, 141a, 151a, 161a, etc.) of the portions that press the plurality of reaction force generating members by the pressing operation of the operation element. 173a, 182a, and 197a) are formed in a similar shape having a size proportional to the distance from the distance, and the reaction force generated by the plurality of reaction force generating members reaches a peak simultaneously at a predetermined stroke position of the operation element.
本発明に係る操作子装置は、押圧操作により回動する操作子と、回動する操作子に対して反力を発生する複数の反力発生部材とを備えており、複数の反力発生部材が発生する反力は、操作子のストローク位置が所定の位置になったときに、同時にピークに達するように構成されている。反力発生部材はゴムのような弾性部材で構成することが好ましいが、本発明のように、反力発生部材を複数設けることで、ゴムのような弾性力が小さく耐久性が低い材料を用いても反力のピークの大きさを十分に大きくすることができるとともに耐久性を向上させることができる。また、複数の反力発生部材が発生する反力が同時にピークに達することで、良好なクリック感を得ることができる。複数の反力発生部材は、２つ以上で構成されていればよく、３つでも４つでもよい。
The operating element device according to the present invention includes an operating element that rotates by a pressing operation, and a plurality of reaction force generating members that generate reaction force against the rotating operating element. The reaction force generated is configured to reach a peak at the same time when the stroke position of the operation element reaches a predetermined position. The reaction force generating member is preferably composed of an elastic member such as rubber. However, as in the present invention, by providing a plurality of reaction force generating members, a material having low elastic force such as rubber and low durability is used. However, the magnitude of the peak of the reaction force can be sufficiently increased and the durability can be improved. Further, since the reaction forces generated by the plurality of reaction force generating members simultaneously reach a peak, a good click feeling can be obtained. The plurality of reaction force generation members may be two or more, and may be three or four.
なお、本発明において、複数の反力発生部材は、操作子に直接あるいは間接的に押圧されて反力を発生するものであってもよいし、操作子の回動によって駆動する他の部材に押圧されて反力を発生し、その反力を他の部材を介して操作子に付与するものであってもよい。また、反力が増加してピークに達した後に減少する特性とは、反力発生部材を一定の力で押圧したときに、反力発生部材が圧縮したり変形したりして反力が徐々に増加していきピークに到達したのちに減少していく特性である。
In the present invention, the plurality of reaction force generating members may generate reaction force by being directly or indirectly pressed by the operation element, or may be other members driven by the rotation of the operation element. The reaction force may be generated by being pressed, and the reaction force may be applied to the operation element via another member. The characteristic that the reaction force increases and decreases after reaching a peak is that when the reaction force generation member is pressed with a constant force, the reaction force generation member is compressed or deformed, and the reaction force gradually increases. It is a characteristic that increases and decreases after reaching a peak.
例えば、反力発生部材をドーム状のゴムで構成した場合には、ドーム状のゴムを上方から押圧していくと、ドーム状のゴムは中央部が凹むように変形しながら反力が増加していき、反力がピークに達したのちには中央部が上方に突出した状態から下方に突出した状態に反転するように凹んで反力が減少していく。複数の反力発生部材としては、このような特性が備わった部材が用いられる。また、複数の反力発生部材が発生する反力が同時にピークに達するようにする方法としては、複数の反力発生部材の大きさ、形状、材質等をそれぞれ設置位置に応じて異なるものにする方法や、複数の反力発生部材が設置される設置場所や、複数の反力発生部材を押圧する部分に変形を加えたりする方法を用いることができる。
For example, when the reaction force generating member is composed of a dome-shaped rubber, when the dome-shaped rubber is pressed from above, the reaction force increases while the dome-shaped rubber is deformed so that the central portion is recessed. Then, after the reaction force reaches a peak, the reaction force decreases by denting so that the center portion reverses from a state protruding upward to a state protruding downward. As the plurality of reaction force generating members, members having such characteristics are used. In addition, as a method of simultaneously causing the reaction forces generated by the plurality of reaction force generating members to reach a peak, the size, shape, material, etc. of the plurality of reaction force generating members are different depending on the installation position. A method, an installation place where a plurality of reaction force generating members are installed, or a method of applying deformation to a portion pressing the plurality of reaction force generating members can be used.
この場合、複数の反力発生部材を押圧する部分が操作子に設けられている場合には、回動の中心点は第１の支点となり、複数の反力発生部材を押圧する部分が操作子の回動に連動して回動する部材であれば、回動の中心点は操作子の回動に連動して回動する部材の回動の中心点となる。本発明によると、複数の反力発生部材を押圧する部分として真っ直ぐな棒状部分や平面を備えた板状部分を用いるようになるため、複数の反力発生部材を押圧する部分の構造が単純になるとともにその製造が容易になる。
In this case, when the operation element is provided with a portion that presses the plurality of reaction force generation members, the center point of rotation is the first fulcrum, and the portion that presses the plurality of reaction force generation members is the operation element. If the member rotates in conjunction with the rotation, the center point of the rotation becomes the center point of rotation of the member that rotates in conjunction with the rotation of the operation element. According to the present invention, since a straight bar-like part or a plate-like part having a flat surface is used as a part for pressing a plurality of reaction force generating members, the structure of a part for pressing a plurality of reaction force generating members is simple. And the manufacture thereof becomes easy.
本発明に係る操作子装置のさらに他の構成上の特徴は、複数の反力発生部材（３５，３６）は、取付け高さを調整することで発生する反力が同時にピークに達するようにされていることにある。
Still another structural feature of the operation device according to the present invention is that the reaction force generated by adjusting the mounting height of the plurality of reaction force generating members (35, 36) reaches a peak at the same time. There is in being.
この場合、複数の反力発生部材を同じもので構成して、その取付位置に応じて取付け高さを変えてもよいし、複数の反力発生部材を大きさが異なる同形のもので構成し、その取付位置に応じて取付け高さを変えてもよい。さらに、複数の反力発生部材を大きさおよび形状をそれぞれ異なるもので構成しながら、取付位置に応じて取付け高さを変えることにより発生する反力が同時にピークに達するようにしてもよい。本発明によると、反力発生部材の大きさや取付位置を任意にできる。
In this case, a plurality of reaction force generating members may be configured in the same manner, and the mounting height may be changed according to the mounting position, or the plurality of reaction force generating members may be configured in the same shape with different sizes. The mounting height may be changed according to the mounting position. Furthermore, the reaction force generated by changing the mounting height according to the mounting position may simultaneously reach a peak while the plurality of reaction force generating members are configured with different sizes and shapes. According to the present invention, the size and mounting position of the reaction force generating member can be arbitrarily set.
本発明に係る操作子装置のさらに他の構成上の特徴は、複数の反力発生部材（４５，４６）は、反力発生部材の支持部または／および操作子の押圧操作により複数の反力発生部材を押圧する部分（４１ａ）に凹部または／および凸部を設けることで発生する反力が同時にピークに達するようにされていることにある。
Still another structural feature of the operating element device according to the present invention is that the plurality of reaction force generating members (45, 46) include a plurality of reaction forces by a pressing operation of the support portion of the reaction force generating member and / or the operating element. The reaction force generated by providing the concave portion or / and the convex portion in the portion (41a) that presses the generating member is to reach a peak at the same time.
この場合の複数の反力発生部材を押圧する部分の形状を調整するとは、操作子や、操作子に連動して回動する部材における各反力発生部材を押圧する部分に凸部を設けたり、凹部を設けたりすることである。本発明によると、特に、複数の反力発生部材を同じもので構成した場合に、複数の反力発生部材を押圧する部分あるいは／および支持部の形状を調整することで複数の反力発生部材が発生する反力が同時にピークに達するようにできるため、複数の反力発生部材の製造が容易になる。
In this case, adjusting the shape of the portion that presses the plurality of reaction force generating members means that a convex portion is provided in the portion that presses each reaction force generating member in the operation element or a member that rotates in conjunction with the operation element. Or providing a recess. According to the present invention, in particular, when a plurality of reaction force generating members are made of the same material, a plurality of reaction force generating members are adjusted by adjusting the shape of the portion or / and the support portion that presses the plurality of reaction force generating members. Since the reaction force generated can reach a peak at the same time, the production of a plurality of reaction force generation members is facilitated.
本発明に係る操作子装置のさらに他の構成上の特徴は、操作子（１１，７１，８１，１１１，１４１，１５１，１６１，１７１，１８１，１９１）の回動に連動して第２の支点（１５ｆ，８２ｃ，１１２ａ，１４２ｅ，１５２ｆ，１６３ｃ，１７７ｃ，１８７ａ１９７ａ）を中心として回動する連動部材（５７，７７，８７，１１３，１４７，１５７，１６７，１７７，１８７，１９７）を有し、複数の反力発生部材（５４，５５，５６，７４，７５，７６，８５，８６，１１５，１１６，１４５，１４６，１４８ａ，１４８ｂ，１５５，１５６，１５８ａ，１５８ｂ，１６５，１６６，１６８ａ，１６８ｂ，１７５，１７６，１７８ａ，１７８ｂ，１８３，１８４，１８５，１８６，１９５，１９６，１９８ａ，１９８ｂ）は、操作子または連動部材に押圧されて圧縮されることで反力を発生することにある。
Still another structural feature of the operating device according to the present invention is that the second operating device is interlocked with the rotation of the operating devices (11, 71, 81, 111, 141, 151, 161, 171, 181, 191). It has interlocking members (57, 77, 87, 113, 147, 157, 167, 177, 187, 197) that rotate around the fulcrum (15f, 82c, 112a, 142e, 152f, 163c, 177c, 187a197a). , A plurality of reaction force generating members (54, 55, 56, 74, 75, 76, 85, 86, 115, 116, 145, 146, 148a, 148b, 155, 156, 158a, 158b, 165, 166, 168a, 168b, 175, 176, 178a, 178b, 183, 184, 185, 186, 195, 196, 198a, 198b) It is to generate a reaction force by being compressed by being pressed into interlocking member.
本発明によれば、複数の反力発生部材は、操作子または連動部材に押圧される位置に設置できればよいため、複数のスペースの中から設置場所を任意に選択して複数の反力発生部材を設置することができる。また、この場合の複数の反力発生部材としては、ゴム製の部材で構成することができる。
According to the present invention, since the plurality of reaction force generating members need only be installed at positions pressed by the operation element or the interlocking member, the plurality of reaction force generating members can be selected arbitrarily from a plurality of spaces. Can be installed. In addition, the plurality of reaction force generating members in this case can be configured by rubber members.
本発明に係る操作子装置のさらに他の構成上の特徴は、操作子（１１，５７，６１，７１，８１，９２，１０１，１４１，１５１，１６１，１８１）は長尺状に形成され、複数の反力発生部材（２５，２６，３５，３６，４５，４６，５４，５５，６５，６６，７５，７６，８５，８６，９８，９９，１０５，１０６，１４８ａ，１４８ｂ，１５８ａ，１５８ｂ，１６８ａ，１６８ｂ，１８４，１８５，１８６）は、操作子の長手方向に沿って配置されていることにある。
Still another structural feature of the operating device according to the present invention is that the operating devices (11, 57, 61, 71, 81, 92, 101, 141, 151, 161, 181) are formed in a long shape, A plurality of reaction force generating members (25, 26, 35, 36, 45, 46, 54, 55, 65, 66, 75, 76, 85, 86, 98, 99, 105, 106, 148a, 148b, 158a, 158b , 168a, 168b, 184, 185, 186) are arranged along the longitudinal direction of the operation element.
この場合の操作子を、例えば、鍵盤装置の鍵とすると、その幅は狭いため、複数の反力発生部材を、操作子の長手方向に沿って配置することにより、操作子を押圧操作したときに十分な大きさでかつ良好なクリック感を得ることのできる反力を発生することができる。
When the operating element in this case is, for example, a key of a keyboard device, the width thereof is narrow. Therefore, when the operating element is pressed by arranging a plurality of reaction force generating members along the longitudinal direction of the operating element. It is possible to generate a reaction force that is sufficiently large to obtain a good click feeling.
本発明に係る操作子装置のさらに他の構成上の特徴は、操作子（１１１）のストローク中における複数の反力発生部材が発生する反力のピーク到達時の発生位置を調整する調整手段（１１４，１１４ａ）を有することにある。
Still another structural feature of the operating device according to the present invention is an adjusting means for adjusting the generation position of the reaction force generated by the plurality of reaction force generating members during the stroke of the operating device (111) when reaching the peak. 114, 114a).
この場合の複数の反力発生部材が発生する反力のピーク到達時の発生位置の調整とは、例えば、反力発生部材を押圧する部分をねじを用いて進退させることにより、反力発生部材に当接するタイミングを変更することである。本発明によると、調整手段を調整することにより、複数の反力発生部材が発生する反力が同時にピークに達するように合わせるため、反力発生部材の形状、大きさ、設置位置等の自由度を上げることができる。このため、操作子装置の製造が容易になる。また、反力発生のタイミングを厳密に合わせこむことができる。
In this case, the adjustment of the generation position of the reaction force generated at the peak of the reaction force generated by the plurality of reaction force generation members is, for example, by advancing and retracting a portion that presses the reaction force generation member using a screw. Is to change the timing of abutting. According to the present invention, by adjusting the adjusting means, the reaction forces generated by the plurality of reaction force generating members are adjusted so as to reach the peak at the same time, so the degree of freedom of the shape, size, installation position, etc. of the reaction force generating members Can be raised. For this reason, it becomes easy to manufacture the operation device. In addition, the reaction force generation timing can be precisely matched.
ａ．第１実施形態
［第１実施形態に係る鍵盤装置Ａの構成］
以下、本発明の第１実施形態を図面を用いて説明する。図１は、同実施形態に係る鍵盤装置Ａを示しており、この鍵盤装置Ａは、本発明に係る操作子装置を構成するものである。以下の説明においては、図１に示したＸ方向を鍵盤装置Ａの前後方向とし、図１の紙面表裏方向を鍵盤装置Ａの左右方向とし、図１に示したＹ方向を鍵盤装置Ａの上下方向とする。鍵盤装置Ａは、棚板１０の上面における中央側から前部側（鍵１１の先端側）の部分の上方に、左右方向に配列された複数の鍵１１からなる鍵盤を形成して構成されており、複数の鍵１１は、棚板１０の上面に設けられた鍵支持部材１２によって上下方向（押鍵方向）に回動自在に支持される。なお、複数の鍵１１は、それぞれ複数の白鍵１１Ｗと黒鍵１１Ｂとからなっており、白鍵１１Ｗと黒鍵１１Ｂとは、長さや形状に差異はあるが基本的な構造は同じである。
a. First Embodiment [Configuration of Keyboard Apparatus A According to First Embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a keyboard device A according to the embodiment, and this keyboard device A constitutes an operator device according to the present invention. In the following description, the X direction shown in FIG. 1 is the front-rear direction of the keyboard device A, the front / back direction in FIG. 1 is the left-right direction of the keyboard device A, and the Y direction shown in FIG. The direction. The keyboard device A is configured by forming a keyboard composed of a plurality of keys 11 arranged in the left-right direction above a portion from the center side to the front side (the tip side of the key 11) on the upper surface of the shelf board 10. The plurality of keys 11 are supported by a key support member 12 provided on the upper surface of the shelf board 10 so as to be rotatable in the vertical direction (key pressing direction). The plurality of keys 11 are each composed of a plurality of white keys 11W and black keys 11B. The white keys 11W and the black keys 11B have the same basic structure although there are differences in length and shape. .
鍵盤装置Ａは、鍵ガイド部材１３、後部支持部材１５、質量体１７および反力付与部２０などを備える。白鍵１１Ｗは、鍵本体１１ａＷと、鍵本体１１ａＷの上面前部と前面とに貼り付けられたカバー部１１ｂＷとで構成され、鍵本体１１ａＷには上下に貫通する支点穴１１ｃＷが形成される。この支点穴１１ｃＷは、下方が小さく上方に行くほど前後方向に大きく開口している。鍵本体１１ａＷの下面における前部には、ガイド穴１１ｄＷが形成される。鍵本体１１ａＷの上面における後端側にフェルトからなる衝撃緩衝部材１１ｅが取り付けられ、鍵本体１１ａＷの上面における後端に板状の被駆動部材１１ｆが取り付けられる。
The keyboard apparatus A includes a key guide member 13, a rear support member 15, a mass body 17, a reaction force applying unit 20, and the like. The white key 11W includes a key body 11aW and a cover portion 11bW attached to the front and front surfaces of the key body 11aW. A fulcrum hole 11cW penetrating vertically is formed in the key body 11aW. The fulcrum hole 11cW opens more in the front-rear direction as the lower part is smaller and the upper part is upward. A guide hole 11dW is formed in the front portion of the lower surface of the key body 11aW. An impact buffer member 11e made of felt is attached to the rear end side of the upper surface of the key body 11aW, and a plate-like driven member 11f is attached to the rear end of the upper surface of the key body 11aW.
鍵支持部材１２は、左右に長く延びる棒状に形成され、すべての鍵１１を支持するように鍵１１の下面の前後方向の略中央に対向し、棚板１０の上面に固定される。この鍵支持部材１２の上面からは各白鍵１１Ｗに対応して、複数の白鍵用支点ピン１２ａＷと、複数の黒鍵用支点ピン１２ｂＢを備える。図１に示した白鍵１１Ｗは、支点穴１１ｃＷに白鍵用支点ピン１２ａＷを挿通させることにより白鍵用支点ピン１２ａＷを中心に回動自在に支持される。また、黒鍵１１Ｂは、支点穴１１ｄＢに挿通させることにより、黒鍵用支点ピン１２ｂＢを中心に回動自在に支持される。
The key support member 12 is formed in a bar shape extending in the left-right direction, is opposed to the approximate center in the front-rear direction of the lower surface of the key 11 so as to support all the keys 11, and is fixed to the upper surface of the shelf plate 10. From the upper surface of the key support member 12, a plurality of white key fulcrum pins 12aW and a plurality of black key fulcrum pins 12bB are provided corresponding to the white keys 11W. The white key 11W shown in FIG. 1 is rotatably supported around the white key fulcrum pin 12aW by inserting the white key fulcrum pin 12aW into the fulcrum hole 11cW. Further, the black key 11B is supported to be rotatable about the black key fulcrum pin 12bB by being inserted into the fulcrum hole 11dB.
鍵ガイド部材１３は、棚板１０の上面前部に配置されており、取付部１３ａと、各鍵１１に対応するように配置されたそれぞれ複数の白鍵用キーガイド１３ｂＷおよび黒鍵用キーガイド１３ｃＢと、各鍵１１に対応するように配置された白鍵用下限ストッパ１４ａＷおよび黒鍵用下限ストッパ１４ｂＢとで構成される。取付部１３ａは、矩形になって左右に長く延びる板状に形成され、すべての鍵１１の下面前部に対向するように棚板１０の上面前部に固定される。また、白鍵用キーガイド１３ｂＢは、取付部１３ａの上面前部における白鍵１１Ｗの前部に対応する部分から上方に延びており、黒鍵用キーガイド１３ｃＢは、取付部１３ａの上面後部における黒鍵１１Ｂの前部に対応する部分から上方に延びている。この白鍵用キーガイド１３ｂＷと黒鍵用キーガイド１３ｃＢは、ガイド穴１１ｄＷおよび１１ｄＢ内に位置して各鍵１１の前側が鍵並び方向に揺動することを防止する。
The key guide member 13 is disposed at the front upper portion of the shelf board 10, and has a mounting portion 13 a and a plurality of white key key guides 13 b W and black key key guides disposed so as to correspond to the respective keys 11. 13cB, and a white key lower limit stopper 14aW and a black key lower limit stopper 14bB arranged to correspond to each key 11. The attachment portion 13a is formed in a rectangular plate shape that extends in the left and right directions, and is fixed to the front surface front portion of the shelf plate 10 so as to face the front surface front surfaces of all the keys 11. Further, the white key key guide 13bB extends upward from a portion corresponding to the front portion of the white key 11W in the upper surface front portion of the mounting portion 13a, and the black key key guide 13cB is formed on the upper surface rear portion of the mounting portion 13a. It extends upward from a portion corresponding to the front portion of the black key 11B. The white key key guide 13bW and the black key key guide 13cB are located in the guide holes 11dW and 11dB and prevent the front side of the keys 11 from swinging in the key arrangement direction.
白鍵用下限ストッパ１４ａＷと黒鍵用下限ストッパ１４ｂＢとは、白鍵用キーガイド１３ｂＷと黒鍵用キーガイド１３ｃＢとの間で前後に配置される。この白鍵用下限ストッパ１４ａＷと黒鍵用下限ストッパ１４ｂは、フェルトからなる衝撃吸収材で構成される。そして、白鍵用下限ストッパ１４ａＷは白鍵１１Ｗの下面前部に対向して取付部１３ａの上面前部側に固定されて白鍵１１Ｗの前部の下降位置（押鍵深さ）を規制し、黒鍵用下限ストッパ１４ｂＢは、黒鍵１１Ｂの下面前部に対向して取付部１３ａの上面後部側に固定されて黒鍵１１Ｂの前部の下降限度位置を規制する。
The white key lower limit stopper 14aW and the black key lower limit stopper 14bB are arranged forward and backward between the white key key guide 13bW and the black key key guide 13cB. The white key lower limit stopper 14aW and the black key lower limit stopper 14b are made of a shock absorber made of felt. The white key lower limit stopper 14aW is fixed to the front surface front side of the mounting portion 13a so as to face the front surface of the white key 11W, and restricts the lowering position (key pressing depth) of the front portion of the white key 11W. The black key lower limit stopper 14bB is fixed to the upper surface rear side of the mounting portion 13a so as to oppose the lower surface front portion of the black key 11B and restricts the lower limit position of the front portion of the black key 11B.
後部支持部材１５は、棚板１０の上面における鍵１１の後端部近傍に取り付けられた左右に長いフレーム部材である。この後部支持部材１５は、前段部１５ａと、中央段部１５ｂと、後段部１５ｃとを備え、中央段部１５ｂと後段部１５ｃとの間には凹部１５ｄが形成される。
The rear support member 15 is a frame member that is long on the left and right attached to the vicinity of the rear end of the key 11 on the upper surface of the shelf board 10. The rear support member 15 includes a front step portion 15a, a central step portion 15b, and a rear step portion 15c, and a recess 15d is formed between the central step portion 15b and the rear step portion 15c.
前段部１５ａの上面には非押鍵時用ストッパ１６ａが設けられ、中央段部１５ｂの上面前部には、上方に延びる複数の質量体支持部１５ｅが各鍵１１に対応して形成され、後段部１５ｃの上面には質量体用ストッパ１６ｂが設けられる。非押鍵時用ストッパ１６ａは、すべての鍵１１の下面後部に対向して前段部１５ａの上面に固定されて、離鍵時に各鍵１１の後端が当接する。質量体用ストッパ１６ｂは、後述するすべての質量体１７の後部下面に対向して後段部１５ｃの上面に固定されて押鍵時に質量体１７が当接する。
A non-key-pressing stopper 16a is provided on the upper surface of the front step portion 15a, and a plurality of mass body support portions 15e extending upward are formed on the front surface of the central step portion 15b corresponding to each key 11. A mass body stopper 16b is provided on the upper surface of the rear stage portion 15c. The non-key-pressing stoppers 16a are fixed to the upper surface of the front step portion 15a so as to oppose the lower surface rear portions of all the keys 11, and the rear ends of the keys 11 come into contact with each other when the keys are released. The mass body stopper 16b is fixed to the upper surface of the rear stage portion 15c so as to oppose the rear lower surface of all mass bodies 17 described later, and the mass body 17 abuts upon pressing the key.
質量体１７は、質量体支持部１５ｅに回動自在に取り付けられ、前後に長い略板状に形成された質量体本体１７ａと、フロントウェイト１７ｂと、バックウェイト１７ｃと、鍵ストローク調整ネジ１７ｄとで構成される。質量体本体１７ａは、軸穴を備えた軸受け部（図示せず）が形成される。また、質量体支持部１５ｅには、左右に延びる回動軸部１５ｆが設けられており、質量体本体１７ａは、軸受け部に回動軸部１５ｆを挿通させることにより回動軸部１５ｆを中心に揺動可能に支持される。
The mass body 17 is rotatably attached to the mass body support portion 15e and has a mass body main body 17a formed in a substantially plate shape long in the front and rear direction, a front weight 17b, a back weight 17c, and a key stroke adjusting screw 17d. Consists of. The mass body main body 17a is formed with a bearing portion (not shown) having a shaft hole. Further, the mass body support portion 15e is provided with a rotation shaft portion 15f extending in the left-right direction. The mass body main body 17a is centered on the rotation shaft portion 15f by inserting the rotation shaft portion 15f into the bearing portion. Is swingably supported.
質量体本体１７ａは、軸受け部から前方に延びる前延部と、軸受け部から後方に延びる後延部とを備えており、質量体本体１７ａの前延部は、後延部よりも前後の長さが短く上下の幅が大きい。質量体本体１７ａの前延部側に金属製のフロントウェイト１７ｂが取り付けられ、質量体本体１７ａの後延部に、フロントウェイト１７ｂよりも小さな金属製のバックウェイト１７ｃが取り付けられる。質量体１７は後延部よりも前延部のモーメントが大きくなっているため、鍵１１の離鍵時には、質量体１７の前延部の自重により、鍵１１の後部は下方に付勢されて鍵１１の後端部が非押鍵時用ストッパ１６ａに当接した状態になる。
The mass body main body 17a includes a front extending portion extending forward from the bearing portion and a rear extending portion extending rearward from the bearing portion, and the front extending portion of the mass body main body 17a is longer in the front and rear than the rear extending portion. Short and large in width up and down. A metal front weight 17b is attached to the front extension of the mass body 17a, and a metal back weight 17c smaller than the front weight 17b is attached to the rear extension of the mass body 17a. Since the mass body 17 has a greater moment at the front extension than the rear extension, when the key 11 is released, the rear part of the key 11 is urged downward by the weight of the front extension of the mass body 17. The rear end of the key 11 is in contact with the non-key-pressing stopper 16a.
質量体本体１７ａの前端下部には、鍵本体１１ａの上面後部に設けられた衝撃緩衝部材１１ｅに対向して当接部１７ｅが形成され、質量体本体１７ａの後端下部には、質量体用ストッパ１６ｂに対向して当接部１７ｆが形成される。当接部１７ｅは、質量体１７の前延部が下降するときに、衝撃緩衝部材１１ｅに当接して、鍵１１と質量体１７との衝撃を減少させる。当接部１７ｆは、質量体用ストッパ１６ｂに当接することにより質量体１７の後延部の下降位置を規制する。
An abutting portion 17e is formed at the lower front end of the mass body main body 17a so as to face the shock absorbing member 11e provided at the upper rear portion of the key body 11a. A contact portion 17f is formed facing the stopper 16b. The abutting portion 17e abuts against the shock absorbing member 11e when the forwardly extending portion of the mass body 17 is lowered, and reduces the impact between the key 11 and the mass body 17. The contact portion 17f regulates the descending position of the rearward extension portion of the mass body 17 by contacting the mass body stopper 16b.
鍵ストローク調整ネジ１７ｄは、質量体本体１７ａにおける軸受け部の前方部分に螺合しており、軸周り方向に回転することにより、質量体本体１７ａの下部からの頭部の突出量を変更できる。この鍵ストローク調整ネジ１７ｄの頭部は、鍵１１の被駆動部材１１ｆに対向しており、押鍵により鍵１１の後部が上方に移動したときに、被駆動部材１１ｆから力を受けた質量体１７は、図１の時計周り方向に回転する。このとき、質量体１７は、当接部１７ｆが、質量体用ストッパ１６ｂに当接するまで回転でき、その当接位置は鍵ストローク調整ネジ１７ｄの突出量を変更することで調節できる。
The key stroke adjusting screw 17d is screwed into a front portion of the bearing portion of the mass body main body 17a, and can rotate the amount of protrusion of the head from the lower portion of the mass body main body 17a by rotating around the axis. The head of the key stroke adjusting screw 17d faces the driven member 11f of the key 11, and when the rear portion of the key 11 is moved upward by the key depression, the mass body that receives a force from the driven member 11f. 17 rotates in the clockwise direction of FIG. At this time, the mass body 17 can rotate until the abutting portion 17f abuts on the mass body stopper 16b, and the abutting position can be adjusted by changing the protruding amount of the key stroke adjusting screw 17d.
質量体本体１７ａの後延部の下部には、アクチュエータ１７ｇが設けられ、後部支持部材１５におけるアクチュエータ１７ｇに対向する部分には鍵スイッチ１８が設置される。後部支持部材１５における質量体支持部１５ｅに、スイッチ基板１８ａがネジ１８ｂによって固定されており、鍵スイッチ１８は、スイッチ基板１８ａの上面前部に設置される。鍵スイッチ１８からの信号は、図示しない楽音信号発生回路に送られる。楽音信号発生回路は、押鍵時に鍵スイッチ１８とスイッチ基板１８ａとの間に設けられた２組の電気接点のオンオフ状態や各電気接点の状態が変化する間の時間に応じた楽音信号を発生し、離鍵時に止音を制御する。
An actuator 17g is provided below the rear extension of the mass body main body 17a, and a key switch 18 is installed in a portion of the rear support member 15 that faces the actuator 17g. The switch board 18a is fixed to the mass body support part 15e of the rear support member 15 by screws 18b, and the key switch 18 is installed at the front upper part of the switch board 18a. A signal from the key switch 18 is sent to a tone signal generation circuit (not shown). The tone signal generation circuit generates tone signals according to the time during which the on / off states of the two sets of electrical contacts provided between the key switch 18 and the switch board 18a and the states of the electrical contacts change when the key is depressed. And control the sound when the key is released.
反力付与部２０は、棚板１０の上面における鍵支持部材１２と鍵ガイド部材１３との間に、各鍵１１に対して、取付台２１，２３と、取付台２１，２３の上面に設置された反力発生部材２５，２６とが設けられる。取付台２１，２３は、全ての錘に共通して設けられ、左右に長い板状部材からなる取付板２１ａ，２３ａと、取付板２１ａ，２３ａを支持する左右に長いフレーム部材からなる台部２２，２４とで構成される。取付板２１ａ，２３ａには、互いに間隔を保って配置された複数のねじ穴（図示せず）と、互いに間隔を保った複数組の一対の取付孔（図示せず）とが形成される。
The reaction force applying unit 20 is installed between the key support member 12 and the key guide member 13 on the top surface of the shelf board 10 and on the top surfaces of the mounting bases 21 and 23 and the mounting bases 21 and 23 with respect to each key 11. Reaction force generating members 25 and 26 are provided. The mounting bases 21 and 23 are provided in common to all the weights, and are mounting plates 21a and 23a made of plate members that are long on the left and right sides, and a base portion 22 made of a frame member that is long on the left and right that supports the mounting plates 21a and 23a. , 24. The mounting plates 21a and 23a are formed with a plurality of screw holes (not shown) spaced from each other and a plurality of sets of mounting holes (not shown) spaced from each other.
台部２２，２４は、天井部２２ａ，２４ａと、その前後の端部からそれぞれ下方に延びる壁部２２ｂ，２２ｃおよび２４ｂ，２４ｃと、壁部２２ｂ，２２ｃおよび２４ｂ，２４ｃの下端部から前後の外側にそれぞれ延びる一対の平面部２２ｄ，２４ｄとからなる。天井部２２ａ，２４ａの中央部分には前後の部分よりも低くなった凹状段部２２ｅ，２４ｅが形成される。台部２２，２４の上面に、複数のねじ２１ｂ，２３ｂを介して取付板２１ａ，２３ａが固定される。
The pedestals 22 and 24 have ceiling portions 22a and 24a, wall portions 22b, 22c and 24b and 24c extending downward from front and rear ends thereof, and front and rear portions from the lower ends of the wall portions 22b and 22c and 24b and 24c. It consists of a pair of plane portions 22d and 24d that extend outward. Concave steps 22e and 24e that are lower than the front and rear portions are formed at the center of the ceiling portions 22a and 24a. The mounting plates 21a and 23a are fixed to the upper surfaces of the base portions 22 and 24 via a plurality of screws 21b and 23b.
ねじ２１ｂは、台部２２，２４の天井部２２ａ，２４ａの前部と後部とに螺合することによって、取付板２１ａ，２３ａを台部２２，２４に固定する。これによって、取付板２１ａ，２３ａの前後の傾きの大きさ、及び、鍵下面との間隔が調整できる。取付台２３は、取付台２１の前方に設置され、取付板２１ａおよび取付板２３ａは、前後方向の中心部が略同じ高さになるように板面が互いに平行した状態で、それぞれ前方から後方に向かって下り傾斜して取り付けられる。
The screws 21b are screwed into the front portions and the rear portions of the ceiling portions 22a and 24a of the base portions 22 and 24, thereby fixing the mounting plates 21a and 23a to the base portions 22 and 24. Thereby, the magnitude | size of the back-and-front inclination of the attachment plates 21a and 23a and the space | interval with a key lower surface can be adjusted. The mounting base 23 is installed in front of the mounting base 21, and the mounting plate 21a and the mounting plate 23a are rearward from the front in a state where the plate surfaces are parallel to each other so that the central portions in the front-rear direction are substantially the same height. It is attached with a downward slope toward the top.
反力発生部材２５，２６は、取付台２１，２３の上面に取り付けられ、弾性を有するゴムからなり、図２（ａ），（ｂ）に示したように、ドーム状の本体２５ａ，２６ａと、本体２５ａ，２６ａの上部に形成されたトップ部２５ｂ，２６ｂと、本体２５ａ，２６ａの下端外周に形成されたフランジ状の基部２５ｃ，２６ｃと、基部２５ｃ，２６ｃの下面に形成された一対の脚部２５ｄ，２６ｄとで構成される。
The reaction force generating members 25 and 26 are attached to the upper surfaces of the mounting bases 21 and 23 and are made of elastic rubber. As shown in FIGS. 2 (a) and 2 (b), the dome-shaped main bodies 25a and 26a The top portions 25b and 26b formed on the upper portions of the main bodies 25a and 26a, the flange-shaped base portions 25c and 26c formed on the outer periphery of the lower ends of the main bodies 25a and 26a, and a pair of lower surfaces of the base portions 25c and 26c. It is comprised by the leg parts 25d and 26d.
本体２５ａ，２６ａは、トップ部２５ｂ，２６ｂの近傍部分が他の部分よりも薄肉に形成され、上方からの押圧により圧縮されて、図２（ｂ）に示したように屈曲（座屈）する。また、トップ部２５ｂ，２６ｂの上面中央には上方が開放された開口部２５ｅ，２６ｅが形成され、トップ部２５ｂ，２６ｂの上面における周方向の一部に、開口部２５ｅ，２６ｅと外部とを連通させる空気逃がし用の切込部２５ｆ，２６ｆが設けられる。このように構成された反力発生部材２５，２６は、脚部２５ｄ，２６ｄを上方から取付板２１ａ，２３ａの取付孔に差し込むことによって取付台２１，２３に取り付ける。
In the main bodies 25a and 26a, portions near the top portions 25b and 26b are formed thinner than the other portions, are compressed by pressing from above, and are bent (buckled) as shown in FIG. . Further, openings 25e and 26e having an open top are formed at the center of the top surfaces of the top portions 25b and 26b, and the openings 25e and 26e and the outside are formed on part of the top surfaces of the top portions 25b and 26b in the circumferential direction. Inlet portions 25f and 26f for air release to be communicated are provided. The reaction force generating members 25 and 26 thus configured are attached to the mounting bases 21 and 23 by inserting the leg portions 25d and 26d into the mounting holes of the mounting plates 21a and 23a from above.
反力発生部材２６は、大きさは反力発生部材２５よりも少し大きく、材料と形状は、反力発生部材２５と同じ材料を用いて同じ形状に形成される。本体２５ａと本体２６ａとの下端における前後方向の中心部は同じ高さに位置している。
The reaction force generation member 26 is slightly larger in size than the reaction force generation member 25, and the material and shape are formed in the same shape using the same material as the reaction force generation member 25. The central portions in the front-rear direction at the lower ends of the main body 25a and the main body 26a are located at the same height.
１つの鍵の反力発生部材２５，２６は、鍵１１に対して、それぞれのクリックばねが発生する反力のピークとなるタイミングが一致するように配置される。図３に、反力発生部材２５，２６と、鍵１１との位置関係を模式的に示す。なお、図３は、位置関係を説明するための図であり、詳細な形状や配置については、図１とは多少異なっている。図３は、鍵１１が離鍵時の位置から支点Ｏ（白鍵用支点ピン１２ａまたは黒鍵用支点ピン１２ｂの下端部の中心）を中心として押鍵方向である反時計回り方向に回転して、反力発生部材２５，２６を押圧し反力発生部材２５，２６が発生する反力がピークに達するときの鍵１１の位置を示す。
The reaction force generating members 25 and 26 of one key are arranged so that the timing at which the peak of the reaction force generated by each click spring coincides with the key 11. FIG. 3 schematically shows the positional relationship between the reaction force generating members 25 and 26 and the key 11. 3 is a diagram for explaining the positional relationship, and the detailed shape and arrangement are slightly different from those in FIG. FIG. 3 shows that the key 11 rotates counterclockwise, which is the key pressing direction, around the fulcrum O (the center of the lower end portion of the white key fulcrum pin 12a or the black key fulcrum pin 12b) from the position when the key is released. The position of the key 11 when the reaction force generated by the reaction force generation members 25 and 26 reaches the peak when the reaction force generation members 25 and 26 are pressed is shown.
図３において、実線で示した鍵１１は離鍵状態の位置を表わし、二点鎖線で示した鍵１１は、鍵１１の押圧によって下がり、反力発生部材２５，２６が発生する反力がピークに達したときの位置を表す（この鍵１１の状態は図４，５，８も同様）。反力発生部材２５，２６が発生する反力がピークに達したタイミングにおいては、反力発生部材２５，２６は圧縮されて上端部が二点鎖線で示した鍵１１の位置になる。すなわち、反力発生部材２５，２６の反力のピークが同時に発生するようにして設置される。また、反力発生部材２５，２６は、前述の取付台２１の傾きによってそれぞれ反力がピークに達するときの反力発生部材２５，２６の中心軸に対して鍵１１の下面が直交するように傾斜することで、クリックばねの発生する反力のピークができるだけ急峻に出るようにしている（反力発生部材２５，２６の傾斜と、鍵１１の下面の関係は、図４，５，８も同様）。
In FIG. 3, the key 11 indicated by a solid line represents the position of the key release state, and the key 11 indicated by a two-dot chain line is lowered by the pressing of the key 11, and the reaction force generated by the reaction force generating members 25 and 26 peaks. (The state of the key 11 is the same as in FIGS. 4, 5 and 8). At the timing when the reaction force generated by the reaction force generating members 25 and 26 reaches a peak, the reaction force generating members 25 and 26 are compressed and the upper end portion is at the position of the key 11 indicated by a two-dot chain line. That is, the reaction force generating members 25 and 26 are installed so that the reaction force peaks are generated simultaneously. The reaction force generating members 25 and 26 are arranged such that the lower surface of the key 11 is orthogonal to the central axes of the reaction force generating members 25 and 26 when the reaction force reaches a peak due to the inclination of the mounting base 21 described above. By tilting, the peak of the reaction force generated by the click spring is made as steep as possible (the relationship between the tilt of the reaction force generating members 25 and 26 and the lower surface of the key 11 is also shown in FIGS. The same).
図３に示した距離Ｌ１は、反力発生部材２５の反力がピークになったときに鍵１１の下面ＫＬと反力発生部材２５の中心軸とが交差する点Ｐ１と、鍵１１の支点Ｏとの間の距離であり、距離Ｌ２は、反力発生部材２６の反力がピークになったときに鍵１１の下面ＫＬと反力発生部材２６の中心軸とが交差する点Ｐ２と、鍵１１の支点Ｏとの間の距離である。また、高さＨ１は、鍵１１の支点Ｏが位置する水平面ＨＲと反力発生部材２５の中心軸とが交差する点Ｐ１’と点Ｐ１との間の長さであり、高さＨ２は、鍵１１の支点Ｏが位置する水平面ＨＲと反力発生部材２６の中心軸とが交差する点Ｐ２’と点Ｐ２との間の長さである。
The distance L1 shown in FIG. 3 is a point P1 at which the lower surface KL of the key 11 intersects the central axis of the reaction force generating member 25 when the reaction force of the reaction force generating member 25 reaches a peak, and a fulcrum of the key 11. The distance L2 is a distance between the point P2 where the lower surface KL of the key 11 and the central axis of the reaction force generating member 26 intersect when the reaction force of the reaction force generating member 26 reaches a peak, and This is the distance from the fulcrum O of the key 11. The height H1 is the length between the point P1 ′ and the point P1 where the horizontal plane HR where the fulcrum O of the key 11 is located and the central axis of the reaction force generating member 25 intersect, and the height H2 is This is the length between the point P2 ′ and the point P2 where the horizontal plane HR where the fulcrum O of the key 11 is located and the central axis of the reaction force generating member 26 intersect.
これらの値の関係は、次の式１のように、
Ｌ１／Ｌ２＝Ｈ１／Ｈ２ …式１
の関係になっている。すなわち、反力発生部材２５，２６の弾性変形する部分の大きさ（正確には、反力発生部材２５の高さＨ１の間に位置する部分の大きさと、反力発生部材２６の高さＨ２の間に位置する部分の大きさ）は、反力発生部材２５，２６のそれぞれの設置位置と支点Ｏとの間の距離に比例し、設置位置が鍵１１の支点Ｏから遠くなるに従って、反力発生部材２５，２６は大きなものを用いる。
The relationship between these values is as shown in Equation 1 below.
L1 / L2 = H1 / H2 Formula 1
It has become a relationship. That is, the size of the elastically deforming portions of the reaction force generating members 25 and 26 (more precisely, the size of the portion located between the height H1 of the reaction force generating member 25 and the height H2 of the reaction force generating member 26). Is proportional to the distance between the respective installation positions of the reaction force generating members 25 and 26 and the fulcrum O, and as the installation position becomes farther from the fulcrum O of the key 11, the reaction force increases. Large force generating members 25 and 26 are used.
この場合、鍵１１の支点Ｏに近い反力発生部材２５の弾性変形部分は、鍵１１の支点Ｏから遠い反力発生部材２６の弾性変形部分よりも小さく形成される。これによって、反力発生部材２５，２６の大きさが大きくなるのに比例して、変形していない状態から反力がピークとなる時点までに必要とする変形量が大きくなる。この変形量の違いを鍵１１の支点から反力発生部材２５，２６の設置位置までの距離に応じた鍵１１のストローク量と合わせることで、反力発生部材２５，２６の反力のピークは同時に発生する。
In this case, the elastic deformation portion of the reaction force generation member 25 near the fulcrum O of the key 11 is formed smaller than the elastic deformation portion of the reaction force generation member 26 far from the fulcrum O of the key 11. As a result, the amount of deformation required from the undeformed state to the point at which the reaction force peaks increases in proportion to the increase in the size of the reaction force generating members 25 and 26. By matching this difference in deformation amount with the stroke amount of the key 11 corresponding to the distance from the fulcrum of the key 11 to the installation position of the reaction force generating members 25, 26, the peak of the reaction force of the reaction force generating members 25, 26 is It occurs at the same time.
［第１実施形態に係る鍵盤装置Ａの動作］
離鍵状態では、質量体１７は、フロントウェイト１７ｂの重さにより前部を下降させて鍵ストローク調整ネジ１７ｄが鍵１１を押し下げる。鍵１１は後部が下方に押圧されて非押鍵時用ストッパ１６ａに当接し、前部が上昇した状態となる。この状態で、押鍵操作すると、鍵１１は質量体１７のフロントウェイト１７ｂの重さに抗して、支点Ｏを中心に図１で反時計周り方向に回転し始め、質量体１７は回動軸部１５ｆを中心に時計周り方向に回転し始める。そして、鍵１１が所定の深さまで押鍵されると、鍵１１の前部下面が反力発生部材２５，２６の上端に当接して、反力発生部材２５，２６を圧縮し始める。これによって、反力発生部材２５，２６は、それぞれのドーム部の変形によって反力を発生して鍵１１に対して付与する。
[Operation of Keyboard Device A According to First Embodiment]
In the key release state, the mass body 17 is lowered by the weight of the front weight 17b, and the key stroke adjusting screw 17d pushes down the key 11. The rear portion of the key 11 is pressed downward to come into contact with the non-key-pressing stopper 16a, and the front portion is raised. When the key is depressed in this state, the key 11 starts to rotate counterclockwise in FIG. 1 around the fulcrum O against the weight of the front weight 17b of the mass body 17, and the mass body 17 rotates. It starts to rotate clockwise around the shaft 15f. When the key 11 is depressed to a predetermined depth, the front lower surface of the key 11 comes into contact with the upper ends of the reaction force generation members 25 and 26 and starts to compress the reaction force generation members 25 and 26. As a result, the reaction force generating members 25 and 26 generate a reaction force by the deformation of the respective dome portions and apply the reaction force to the key 11.
押鍵が進むと、反力発生部材２５，２６が発生する反力は徐々に大きくなっていき、その反力は同時にピークに達する。その後、反力発生部材の本体２５ａ，２６ａの薄肉部分が屈曲して下方に凹み反力は減少していく。さらに押鍵が進むと、鍵１１の前部下面が白鍵用下限ストッパ１４ａまたは黒鍵用下限ストッパ１４ｂに当接して鍵１１はそれ以上回転できなくなり、反力発生部材２５，２６もそれ以上圧縮されなくなり、押鍵状態となる。押鍵動作中、質量体１７は、前延部が鍵１１の被駆動部材１１ｆに押し上げられて、後延部が下降していく。この質量体１７の回転に伴い、アクチュエータ１７ｇが鍵スイッチ１８を押圧し、鍵スイッチ１８の電気接点をオンにする。また、押鍵の強さに応じて、質量体１７の当接部１７ｆが質量体用ストッパ１６ｂに当接して質量体１７の後部の下方への変位が規制される。
As the key is depressed, the reaction force generated by the reaction force generating members 25 and 26 gradually increases, and the reaction force simultaneously reaches a peak. Thereafter, the thin portions of the main body 25a, 26a of the reaction force generating member are bent and recessed downward to reduce the reaction force. As the key is further depressed, the lower surface of the front portion of the key 11 comes into contact with the white key lower limit stopper 14a or the black key lower limit stopper 14b, and the key 11 cannot be rotated any further. The key is not compressed and is depressed. During the key pressing operation, the mass member 17 is pushed forward by the driven member 11f of the key 11 and the rear extending portion descends. As the mass body 17 rotates, the actuator 17 g presses the key switch 18 to turn on the electrical contact of the key switch 18. Further, according to the strength of the key depression, the abutting portion 17f of the mass body 17 abuts on the mass body stopper 16b, and the downward displacement of the rear portion of the mass body 17 is restricted.
押鍵状態から離鍵すると、質量体１７は回動軸部１５ｆを中心に図１の状態で反時計周り方向に回転し、これによって、鍵１１は時計周り方向に回転して離鍵状態（非操作状態）の原点位置に復帰する。このような操作が各鍵１１に対して連続して行われ、この鍵１１の押離鍵操作に応じて、楽音信号発生回路は楽音信号を発生する。その間、演奏者には、アコースティックピアノを弾いたときのような質量感や、ハンマーからジャックが抜けるときのようなクリック感が得られる。
When the key is released from the key-pressed state, the mass body 17 rotates counterclockwise in the state shown in FIG. 1 around the rotation shaft portion 15f, whereby the key 11 rotates in the clockwise direction to release the key ( Returns to the origin position in the non-operating state. Such an operation is continuously performed on each key 11, and the tone signal generating circuit generates a tone signal in response to the key pressing / releasing key operation. In the meantime, the performer has a feeling of mass as when playing an acoustic piano and a feeling of click as when the jack comes out of the hammer.
本実施形態に係る鍵盤装置Ａは、押鍵操作により揺動する複数の鍵１１と、揺動する各鍵１１に対して反力を付与する複数の反力発生部材２５，２６とを備える。そして、それぞれの反力発生部材の本体２５ａ，２６ａには、薄肉部が形成されて、反力発生部材２５，２６は上方からの押圧により屈曲して、クリックばねとして機能する。これによって、反力発生部材２５，２６の鍵１１に対する反力は、徐々に大きくなったのちにピークに達し、その後小さくなっていく。また、反力発生部材２５，２６は、鍵１１のストローク位置が所定の位置になったときに、それぞれ発生する反力が同時にピークに達するように設置される。
The keyboard device A according to the present embodiment includes a plurality of keys 11 that oscillate by a key pressing operation, and a plurality of reaction force generation members 25 and 26 that apply a reaction force to each oscillating key 11. The main body 25a, 26a of each reaction force generating member is formed with a thin portion, and the reaction force generating members 25, 26 are bent by pressing from above and function as a click spring. As a result, the reaction force of the reaction force generating members 25 and 26 against the key 11 gradually increases and then reaches a peak and then decreases. Further, the reaction force generating members 25 and 26 are installed so that the reaction force generated respectively reaches the peak simultaneously when the stroke position of the key 11 reaches a predetermined position.
複数の反力発生部材２５，２６を設けることで、反力の大きさを十分に大きくすることができるとともに耐久性を向上させることができる。また、２個の反力発生部材２５，２６が発生する反力が同時にピークに達することで、良好なクリック感を得ることができる。さらに、反力発生部材２５，２６の弾性変形する部分は、鍵１１の支点Ｏからの距離の比に応じた大きさの相似形状に形成されるため、鍵１１の下面が平面状のもので使用することができ、一般の木製鍵でもそのまま使用でき、さらに鍵１１の構造が単純になるとともにその製造が容易になる。また、鍵１１は細長く幅が短いものであるが、反力発生部材２５，２６を鍵１１の長手方向に沿って配置するため、余裕を持って配置することができる。また、反力発生部材２５，２６に加えて、さらに別の反力発生部材を並べて設置することもできる。
By providing the plurality of reaction force generating members 25 and 26, the magnitude of the reaction force can be sufficiently increased and the durability can be improved. Further, since the reaction force generated by the two reaction force generating members 25 and 26 reaches a peak at the same time, a good click feeling can be obtained. Further, the elastically deforming portions of the reaction force generating members 25 and 26 are formed in a similar shape having a size corresponding to the ratio of the distance from the fulcrum O of the key 11, so that the lower surface of the key 11 is planar. It can be used, even a general wooden key can be used as it is, and the structure of the key 11 is simplified and its manufacture is facilitated. Further, although the key 11 is thin and short, the reaction force generating members 25 and 26 are arranged along the longitudinal direction of the key 11, so that the key 11 can be arranged with a margin. Further, in addition to the reaction force generating members 25 and 26, another reaction force generating member can be installed side by side.
ａ１．第１実施形態の第１変形例
第１実施形態における図１の鍵盤装置Ａで、反力付与部２０の構造のみを変更した変形例を説明する。以下、反力付与部以外は、第１実施形態の構成を引用して説明する。図４は、前述した第１実施形態の第１変形例に係る鍵盤装置が備える反力付与部３０と鍵１１との位置関係を模式的に示す。反力付与部３０は、前述した反力発生部材２５と同じ構成からなる反力発生部材３５，３６を備える。
a1. First Modified Example of First Embodiment A modified example in which only the structure of the reaction force applying unit 20 is changed in the keyboard device A of FIG. 1 in the first embodiment will be described. Hereinafter, the configuration of the first embodiment will be described with reference to the components other than the reaction force applying unit. FIG. 4 schematically shows the positional relationship between the reaction force applying unit 30 and the key 11 included in the keyboard device according to the first modification of the first embodiment described above. The reaction force application unit 30 includes reaction force generation members 35 and 36 having the same configuration as the reaction force generation member 25 described above.
この反力発生部材３５，３６は、同一の部材で構成され、鍵１１の支点Ｏから反力発生部材３５，３６が取り付けられている位置までの距離がそれぞれ異なる位置に設置されているが、互いの取付け高さを変えることで発生する反力のピークが同時に達するようにしている。すなわち、鍵１１の支点Ｏから距離は反力発生部材３５よりも反力発生部材３６の方が長く、取付け高さは反力発生部材３６よりも反力発生部材３５の方が低くなっている。これは、反力発生部材３６が取り付けられる取付台３３ａの高さよりも反力発生部材３５が取り付けられる取付台３１ａの高さを低くすることにより調整される。
The reaction force generating members 35 and 36 are made of the same member and are installed at different positions from the fulcrum O of the key 11 to the position where the reaction force generating members 35 and 36 are attached. The peak of the reaction force generated by changing the mounting height of each other is reached at the same time. That is, the distance from the fulcrum O of the key 11 is longer in the reaction force generating member 36 than in the reaction force generating member 35, and the mounting height is lower in the reaction force generating member 35 than in the reaction force generating member 36. . This is adjusted by making the height of the mounting base 31a to which the reaction force generating member 35 is attached lower than the height of the mounting base 33a to which the reaction force generating member 36 is attached.
図４に示した距離Ｌ３は、反力発生部材３５の反力がピークになったときに鍵１１の下面ＫＬと反力発生部材３５の中心軸とが交差する点Ｐ３と、鍵１１の支点Ｏとの間の距離であり、距離Ｌ４は、反力発生部材３６の反力がピークになったときに鍵１１の下面ＫＬと反力発生部材３６の中心軸とが交差する点Ｐ４と、鍵１１の支点Ｏとの間の距離である。また、高さＨ３は、支点Ｏが位置する水平面ＨＲと反力発生部材３５の中心軸とが交差する点Ｐ３’と点Ｐ３との間の長さであり、高さＨ４は、支点Ｏが位置する水平面ＨＲと反力発生部材３６の中心軸とが交差する点Ｐ４’と点Ｐ４との間の長さである。
The distance L3 shown in FIG. 4 is a point P3 at which the lower surface KL of the key 11 intersects the central axis of the reaction force generating member 35 when the reaction force of the reaction force generating member 35 reaches a peak, and a fulcrum of the key 11. The distance L4 is a distance between the point P4 where the lower surface KL of the key 11 and the central axis of the reaction force generating member 36 intersect when the reaction force of the reaction force generating member 36 reaches a peak, This is the distance from the fulcrum O of the key 11. The height H3 is the length between the point P3 ′ and the point P3 where the horizontal plane HR where the fulcrum O is located and the central axis of the reaction force generating member 35 intersect, and the height H4 is the fulcrum O This is the length between the point P4 ′ and the point P4 where the horizontal plane HR and the central axis of the reaction force generating member 36 intersect.
これらの関係は、次の式２のように、
Ｌ３／Ｌ４＝Ｈ３／Ｈ４ …式２
の関係になる。また、反力発生部材３５における反力発生部材３６の点Ｐ４’に対応する位置にある点Ｐ３”と、点Ｐ３’との間の長さであるオフセットＤは、次の式３のように、
Ｄ＝Ｈ４−Ｈ３ …式３
の関係になる。すなわち、オフセットＤは、反力発生部材３５の取付台３１ａの上面高さを反力発生部材３６の取付台３３ａの上面高さよりも低くするための反力発生部材３５の中心軸に沿った長さであり、反力発生部材３５は、鍵１１の支点Ｏとの距離が短くなるほどオフセットＤが大きくなるように設置する。これによって、反力発生部材３５，３６の反力のピークが同時に発生することができる。
These relationships are expressed by the following equation 2,
L3 / L4 = H3 / H4 Equation 2
It becomes a relationship. Further, the offset D, which is the length between the point P3 ″ at the position corresponding to the point P4 ′ of the reaction force generating member 36 in the reaction force generating member 35 and the point P3 ′, is expressed by the following Expression 3. ,
D = H4-H3 Formula 3
It becomes a relationship. That is, the offset D is a length along the central axis of the reaction force generating member 35 for making the upper surface height of the mounting base 31a of the reaction force generating member 35 lower than the upper surface height of the mounting base 33a of the reaction force generating member 36. The reaction force generating member 35 is installed so that the offset D increases as the distance from the fulcrum O of the key 11 decreases. As a result, the reaction force peaks of the reaction force generating members 35 and 36 can be generated simultaneously.
この第１変形例に係る鍵盤装置によると、反力発生部材３５，３６を鍵１１の支点Ｏからの距離が異なる場所に設置しながら同じもので構成できるため、反力発生部材３５，３６の製造が容易になる。この第１変形例に係る鍵盤装置のそれ以外の作用効果は、前述した鍵盤装置Ａと同様である。なお、第１変形例に係る鍵盤装置の変形例として、反力発生部材を異なる大きさにしながら、その取付位置に応じて取付け高さを変えることもできる。これによると、反力発生部材の大きさや取付位置を任意に設定できる。
ａ２．第１実施形態の第２変形例
According to the keyboard device according to the first modification, the reaction force generation members 35 and 36 can be configured with the same while being installed at different distances from the fulcrum O of the key 11. Easy to manufacture. The other effects of the keyboard device according to the first modification are the same as those of the keyboard device A described above. As a modification of the keyboard device according to the first modification, the mounting height can be changed in accordance with the mounting position of the reaction force generating member with different sizes. According to this, the magnitude | size and attachment position of a reaction force generation member can be set arbitrarily.
a2. Second modification of the first embodiment
第１実施形態における図１の鍵盤装置Ａで、反力付与部２０の構造のみを変更した変形例を説明する。以下、反力付与部以外は、第１実施形態の構成を引用して説明する。図５は、前述した第１実施形態の第２変形例に係る鍵盤装置が備える反力付与部４０と鍵１１との位置関係を模式的に示す。反力付与部４０は、前述した反力発生部材２６と同じ構成からなる反力発生部材４５，４６を備える。また、鍵１１の下面における反力発生部材２６と当接する位置には、反力発生部材４５と当接する位置の下面より下方に突出する突部１１ａが形成され、突部１１ａの下面は平面状に形成される。
A modification in which only the structure of the reaction force applying unit 20 is changed in the keyboard device A of FIG. 1 in the first embodiment will be described. Hereinafter, the configuration of the first embodiment will be described with reference to the components other than the reaction force applying unit. FIG. 5 schematically shows the positional relationship between the reaction force applying unit 40 and the key 11 included in the keyboard device according to the second modification of the first embodiment described above. The reaction force application unit 40 includes reaction force generation members 45 and 46 having the same configuration as the reaction force generation member 26 described above. In addition, a protrusion 11a that protrudes downward from the lower surface of the position in contact with the reaction force generation member 45 is formed at a position in contact with the reaction force generation member 26 on the lower surface of the key 11. The lower surface of the protrusion 11a is planar. Formed.
反力発生部材４５，４６は、同一の部材で構成され、鍵１１の支点Ｏからの距離がそれぞれ異なる位置に設置されるが、押圧される鍵１１の下面の高さを変えることで発生する反力が同時にピークに達する。
The reaction force generating members 45 and 46 are made of the same member, and are installed at different positions from the fulcrum O of the key 11, but are generated by changing the height of the lower surface of the pressed key 11. The reaction force reaches its peak at the same time.
図５に示した距離Ｌ５は、反力発生部材４５の反力がピークになったときに鍵１１の下面ＫＬの中央側部分と反力発生部材４５の中心軸とが交差する点Ｐ５と、鍵１１の支点Ｏとの間の距離であり、距離Ｌ６は、反力発生部材４５の反力がピークになったときの鍵１１の下面ＫＬの中央側部分をそのまま前方に延長した面と反力発生部材４６の中心軸の延長線とが交差する点Ｐ６と、鍵１１の支点Ｏとの間の距離である。また、高さＨ５は、鍵１１の支点Ｏが位置する水平面ＨＲと反力発生部材４５の中心軸とが交差する点Ｐ５’と点Ｐ５との間の長さであり、高さＨ６は、鍵１１の支点Ｏが位置する水平面ＨＲと反力発生部材４６の中心軸とが交差する点Ｐ６’と点Ｐ６との間の長さである。
The distance L5 shown in FIG. 5 is a point P5 where the central portion of the lower surface KL of the key 11 intersects with the central axis of the reaction force generating member 45 when the reaction force of the reaction force generating member 45 reaches a peak. The distance L6 is a distance from the fulcrum O of the key 11, and the distance L6 is opposite to the surface that extends the center side portion of the lower surface KL of the key 11 as it is when the reaction force of the reaction force generating member 45 peaks. This is the distance between the point P6 where the central axis of the force generating member 46 intersects and the fulcrum O of the key 11. The height H5 is the length between the point P5 ′ and the point P5 where the horizontal plane HR where the fulcrum O of the key 11 is located and the central axis of the reaction force generating member 45 intersect, and the height H6 is This is the length between the point P6 ′ and the point P6 where the horizontal plane HR where the fulcrum O of the key 11 is located and the central axis of the reaction force generating member 46 intersect.
これらの関係は、次の式４のように、
Ｌ５／Ｌ６＝Ｈ５／Ｈ６ …式４
の関係になる。また、反力発生部材４６の反力がピークになるときの鍵１１の突部１１ａの下面と反力発生部材４６の中心軸とが交差する点Ｐ６”と点Ｐ６との間の長さであるオフセットＥは、次の式５のように、
Ｅ＝Ｈ６−Ｈ５ …式５
の関係になる。すなわち、オフセットＥは、反力発生部材４６を押圧する突部１１ａの高さを反力発生部材４５を押圧する鍵１１の下面中央側部分よりも低くするための反力発生部材４６の中心軸に沿った長さであり、反力発生部材４６と、鍵１１の支点Ｏとの距離が長くなるほど大きくなるように設定する。これによって、反力発生部材４５，４６の反力のピークが同時に発生することができる。
These relations are expressed by the following equation 4,
L5 / L6 = H5 / H6 Equation 4
It becomes a relationship. Further, the length between the point P6 ″ and the point P6 where the lower surface of the protrusion 11a of the key 11 and the central axis of the reaction force generation member 46 intersect when the reaction force of the reaction force generation member 46 reaches a peak. A certain offset E is expressed by the following equation 5:
E = H6-H5 Formula 5
It becomes a relationship. That is, the offset E is the central axis of the reaction force generating member 46 for lowering the height of the protrusion 11 a that presses the reaction force generating member 46 than the lower center portion of the key 11 that presses the reaction force generating member 45. Is set so as to increase as the distance between the reaction force generating member 46 and the fulcrum O of the key 11 increases. As a result, reaction force peaks of the reaction force generating members 45 and 46 can be generated simultaneously.
この第２変形例に係る鍵盤装置によると、反力発生部材４５，４６を鍵１１の支点Ｏからの距離が異なる場所に設置しながら同じもので構成できるため、反力発生部材４５，４６の製造が容易になる。この第２変形例に係る鍵盤装置のそれ以外の作用効果は、前述した鍵盤装置Ａと同様である。なお、第２変形例に係る鍵盤装置の変形例として、反力発生部材を異なる大きさにしながら、その取付位置に応じて鍵の下面の高さを変えることもできる。これによると、反力発生部材の大きさや取付位置を任意に設定することができる。
According to the keyboard device according to the second modified example, the reaction force generating members 45 and 46 can be configured with the same while being installed at different distances from the fulcrum O of the key 11. Easy to manufacture. The other operational effects of the keyboard device according to the second modification are the same as those of the keyboard device A described above. As a modification of the keyboard device according to the second modification, the height of the lower surface of the key can be changed according to the mounting position while the reaction force generating member is made to have a different size. According to this, the magnitude | size and attachment position of a reaction force generation member can be set arbitrarily.
ａ３．第１実施形態の第３変形例
図６は、前述した第１実施形態の第３変形例に係る鍵盤装置Ａ１を示す。この鍵盤装置Ａ１では、第１実施形態の鍵盤装置Ａと比べて、反力付与部の構成が異なるが、他の構造は同じため、鍵盤装置Ａと同一部品には同一符号を記して説明は省略する。反力付与部は、後部支持部材５２に設置された反力付与部５０ａと、鍵５１の下方に設置された反力付与部５０ｂとで構成される。反力付与部５０ａは、反力発生部材５４，５５からなり、反力発生部材５４，５５はともに反力発生部材と鍵スイッチとの双方の機能を備える。
a3. Third Modified Example of First Embodiment FIG. 6 shows a keyboard device A1 according to the third modified example of the first embodiment described above. In this keyboard device A1, the structure of the reaction force imparting unit is different from that of the keyboard device A of the first embodiment, but the other structures are the same. Omitted. The reaction force application unit includes a reaction force application unit 50 a installed on the rear support member 52 and a reaction force application unit 50 b installed below the key 51. The reaction force applying unit 50a includes reaction force generating members 54 and 55, and both of the reaction force generating members 54 and 55 have functions of both a reaction force generating member and a key switch.
反力発生部材５４，５５は、図７（ａ），（ｂ）に示したように、前述した反力発生部材２５，２６と同様、弾性を有するゴム構成からなるドーム状の本体５４ａ，５５ａと、本体５４ａ，５５ａの上部に形成されたトップ部５４ｂ，５５ｂと、本体５４ａ，５５ａの下端外周に形成されたフランジ状の基部５４ｃ，５５ｃと、基部５４ｃ，５５ｃの下面に形成された一対の脚部５４ｄとを備え、トップ部５４ｂ，５５ｂの上部には開口部５４ｅ，５５ｅと切込部５４ｆ，５５ｆとが形成される。
As shown in FIGS. 7 (a) and 7 (b), the reaction force generating members 54 and 55 are dome-shaped main bodies 54a and 55a made of rubber having elasticity, like the reaction force generating members 25 and 26 described above. A pair of top portions 54b and 55b formed on the upper portions of the main bodies 54a and 55a, flange-shaped base portions 54c and 55c formed on the outer periphery of the lower ends of the main bodies 54a and 55a, and a pair formed on the lower surfaces of the base portions 54c and 55c. Leg portions 54d, and openings 54e and 55e and cut portions 54f and 55f are formed in the upper portions of the top portions 54b and 55b.
本体５４ａ，５５ａ内の上面には下方に突出する可動部５４ｇ，５５ｇが形成され、可動部５４ｇ，５５ｇの下端面には可動接点５４ｈ，５５ｈが固定される。また、反力発生部材５４，５５が設置されるスイッチ基板５８の上面における可動接点５４ｈ，５５ｈに対向する部分には、可動接点５４ｈ，５５ｈとで電気接点を構成する固定接点５８ａ，５８ｂが設けられる。スイッチ基板５８には、前後方向に間隔を保って４つの取付孔が形成され、反力発生部材５４，５５は、脚部５４ｄ，５５ｄを後部側の２つの取付孔に差し込むことによってスイッチ基板５８に取り付けられる。なお、４つの取付孔は各鍵１１にそれぞれ対応するもので、複数組の４つの取付孔が左右方向に沿って設けられる。
Movable portions 54g and 55g projecting downward are formed on the upper surfaces of the main bodies 54a and 55a, and movable contacts 54h and 55h are fixed to lower end surfaces of the movable portions 54g and 55g. In addition, fixed contacts 58a and 58b, which constitute electric contacts with the movable contacts 54h and 55h, are provided on the upper surface of the switch board 58 on which the reaction force generating members 54 and 55 are disposed, facing the movable contacts 54h and 55h. It is done. Four mounting holes are formed in the switch board 58 at intervals in the front-rear direction, and the reaction force generating members 54 and 55 are inserted into the two mounting holes on the rear side by inserting the leg parts 54d and 55d into the switch board 58. Attached to. The four mounting holes correspond to the respective keys 11, and a plurality of sets of four mounting holes are provided along the left-right direction.
反力発生部材５５は、大きさは反力発生部材５４よりも少し大きく、材料と形状は反力発生部材５４と同じ材料を用いて同じ形状に形成される。そして、可動接点５４ｈ，５５ｈと固定接点５８ａ，５８ｂとからなる電気接点のオンオフによって楽音信号の音量や音色が制御される。なお、この２つの電気接点も接点時間に差が設けられる。また、質量体５７のアクチュエータ５７ｇは、反力発生部材５４，５５の双方を押圧できるように前後に真っ直ぐに延びており、反力発生部材５４，５５は、反力がピークに達するときの反力発生部材５４，５５の中心軸に対して質量体５７のアクチュエータ５７ｇの下面が直交するように傾斜している。
The reaction force generating member 55 is slightly larger in size than the reaction force generating member 54, and the material and shape are formed in the same shape using the same material as the reaction force generating member 54. The volume and tone of the musical tone signal are controlled by turning on and off the electrical contacts comprising the movable contacts 54h and 55h and the fixed contacts 58a and 58b. Note that there is a difference in contact time between these two electrical contacts. The actuator 57g of the mass body 57 extends straight back and forth so that both of the reaction force generating members 54 and 55 can be pressed, and the reaction force generating members 54 and 55 react when the reaction force reaches a peak. The lower surface of the actuator 57g of the mass body 57 is inclined so as to be orthogonal to the central axis of the force generating members 54, 55.
反力発生部材５４，５５は、質量体５７の回動中心からそれぞれ設置位置までの距離に比例した大きさに形成されることで、反力のピークが同時に発生する。反力付与部５０ｂは、前述した反力付与部２０の取付台２３と反力発生部材２６とを組み付けたものと同じ構成をしており、取付台５３と反力発生部材５６とからなる。また、反力付与部５０ｂの反力発生部材５６も、以下、図８を用いて説明するように、反力付与部５０ａの反力発生部材５４，５５と反力のピークが同時に発生するように設置される。
The reaction force generating members 54 and 55 are formed in a size proportional to the distance from the rotation center of the mass body 57 to the installation position, so that a peak of reaction force is generated simultaneously. The reaction force application part 50 b has the same configuration as that of the attachment base 23 and the reaction force generation member 26 of the reaction force application part 20 described above, and includes an attachment base 53 and a reaction force generation member 56. Further, the reaction force generating member 56 of the reaction force applying portion 50b also generates reaction force peaks simultaneously with the reaction force generating members 54 and 55 of the reaction force applying portion 50a, as will be described below with reference to FIG. Installed.
図８は、支点Ｏ１を中心に回動する主回動体１と、主回動体１に連動して支点Ｏ１’を中心に回動する従回動体２とで、それぞれ反力発生部材３，４を押圧したときに、反力発生部材３，４が発生する反力が同時にピークになる場合の各部材の位置関係を示す。この主回動体１と従回動体２とは、それぞれ揺動側端部が向き合って互いに滑ることなく円弧状に接するように配置されていると仮定したものであり、主回動体１の支点Ｏ１、従回動体２の支点Ｏ１’および主回動体１と従回動体２との接点とが位置する面ＨＲ（ここでは水平面とする）に設置されているものとする。図８において、二点鎖線で示した主回動体１は、反力発生部材３が発生する反力がピークになったときの位置であり、二点鎖線で示した主回動体２は、反力発生部材４が発生する反力がピークになったときの位置である。
FIG. 8 shows reaction force generating members 3 and 4 for a main rotating body 1 that rotates about a fulcrum O1 and a secondary rotating body 2 that rotates about a fulcrum O1 ′ in conjunction with the main rotating body 1, respectively. The positional relationship of each member when the reaction force generated by the reaction force generating members 3 and 4 simultaneously peaks when pressing is shown. The main rotating body 1 and the sub-rotating body 2 are assumed to be arranged so that the swing side end portions face each other and contact each other in an arc shape without sliding, and the fulcrum O1 of the main rotating body 1 is assumed. It is assumed that the fulcrum O1 ′ of the driven rotating body 2 and the surface HR (here, a horizontal plane) on which the contact point between the main rotating body 1 and the driven rotating body 2 is located. In FIG. 8, the main rotating body 1 indicated by a two-dot chain line is a position when the reaction force generated by the reaction force generating member 3 reaches a peak, and the main rotating body 2 indicated by a two-dot chain line is This is the position when the reaction force generated by the force generating member 4 reaches a peak.
この場合、主回動体１の支点Ｏ１から揺動側端部までの長さをＬ７、従回動体２の支点Ｏ１’から揺動側端部までの長さをＬ８とし、主回動体１と従回動体２とが同期して回転するときの、主回動体１の回転角をθ１、従回動体２の回転角をθ２とすると、これらの値の関係は、次の式６のように、
θ２／θ１＝Ｌ７／Ｌ８ …式６
の関係になる。このため、従回動体２の回転角θ２は、次の式７のように、
θ２＝Ｌ７／Ｌ８×θ１ …式７
となり、従回動体２の回転角θ２の角運動拡大率は、Ｌ７／Ｌ８となる。
In this case, the length from the fulcrum O1 of the main rotating body 1 to the rocking side end is L7, and the length from the fulcrum O1 'of the secondary rotating body 2 to the rocking side end is L8. When the rotation angle of the main rotating body 1 and θ2 are the rotation angle of the main rotating body 1 and θ2 when the driven rotating body 2 rotates in synchronization with each other, the relationship between these values is expressed by the following equation (6). ,
θ2 / θ1 = L7 / L8 Equation 6
It becomes a relationship. For this reason, the rotation angle θ2 of the follower rotating body 2 is expressed by the following equation (7):
θ2 = L7 / L8 × θ1 Equation 7
Thus, the angular motion magnification rate of the rotation angle θ2 of the driven rotating body 2 is L7 / L8.
主回動体１が回転して反力発生部材３を押圧し、反力発生部材３が発生する反力がピークに達するまでの回転角をθｐ１とし、従回動体２が、主回動体１に同期して回転して反力発生部材４を押圧し、反力発生部材４が発生する反力がピークに達するまでの回転角をθｐ２とする。そして、反力発生部材３，４の発生する反力が同時にピークに達するとすると、これらの値の関係は、次の式８のように、
θｐ２＝（Ｌ７／Ｌ８）×θｐ１ …式８
の関係になる。
The rotation angle until the reaction force generated by the reaction force generation member 3 reaches a peak is defined as θp 1, and the secondary rotation body 2 becomes the main rotation body 1. A rotation angle until the reaction force generated by the reaction force generation member 4 reaches a peak is set to θp2 by rotating in synchronization and pressing the reaction force generation member 4. And if the reaction force which reaction force generating members 3 and 4 generate | occur | produce reaches a peak simultaneously, the relationship of these values will be like the following formula | equation 8.
θp2 = (L7 / L8) × θp1 Equation 8
It becomes a relationship.
主回動体１の支点Ｏ１と、主回動体１の支点Ｏ１が位置する水平面ＨＲと反力発生部材３の中心軸とが交差する点との間の長さをＬ９とし、従回動体２の支点Ｏ１’と、従回動体２の支点Ｏ１’が位置する水平面と反力発生部材４の中心軸とが交差する点との間の長さをＬ１０とする。そして、主回動体１の支点Ｏ１が位置する水平面ＨＲと反力発生部材３の中心軸とが交差する点から反力発生部材３が発生する反力がピークに達したときの反力発生部材３の上端までの高さをＨ７とし、従回動体２の支点Ｏ１’が位置する水平面ＨＲと反力発生部材４の中心軸とが交差する点から反力発生部材４が発生する反力がピークに達したときの反力発生部材４の上端までの高さをＨ８とする。
The length between the fulcrum O1 of the main rotating body 1 and the point where the horizontal plane HR where the fulcrum O1 of the main rotating body 1 is located and the central axis of the reaction force generating member 3 intersects is L9. The length between the fulcrum O1 ′ and the point where the horizontal plane where the fulcrum O1 ′ of the follower rotating body 2 is located and the central axis of the reaction force generating member 4 intersect is L10. And the reaction force generating member when the reaction force generated by the reaction force generating member 3 reaches the peak from the point where the horizontal plane HR where the fulcrum O1 of the main rotating body 1 is located and the central axis of the reaction force generating member 3 intersects. 3 to H7, and the reaction force generated by the reaction force generating member 4 from the point where the horizontal plane HR where the fulcrum O1 ′ of the follower rotating body 2 is located and the central axis of the reaction force generating member 4 intersects. The height to the upper end of the reaction force generating member 4 when reaching the peak is defined as H8.
これによると、Ｌ７、Ｌ８、Ｌ９、Ｌ１０、Ｈ７、Ｈ８の関係は、次の式９のように、
Ｈ８＝（Ｌ７／Ｌ８）×（Ｌ１０／Ｌ９）×Ｈ７ …式９
の関係になる。すなわち、反力発生部材３，４、主回動体１および従回動体２の位置関係が式９に該当するように所定の長さや高さ設定することにより、主回動体１によって押圧される反力発生部材３と、従回動体２によって押圧される反力発生部材４とが発生する反力が同時にピークに達するようにすることができる。
According to this, the relationship between L7, L8, L9, L10, H7, and H8 is as shown in the following Expression 9.
H8 = (L7 / L8) × (L10 / L9) × H7 Equation 9
It becomes a relationship. That is, by setting a predetermined length and height so that the positional relationship among the reaction force generating members 3, 4, the main rotating body 1, and the secondary rotating body 2 corresponds to Equation 9, the reaction force is pressed by the main rotating body 1. The reaction force generated by the force generation member 3 and the reaction force generation member 4 pressed by the driven rotating body 2 can simultaneously reach a peak.
この関係を、鍵盤装置Ａ１の反力発生部材５４，５６に当てはめると、Ｌ７は、鍵１１の支点Ｏと、被駆動部材１１ｆと鍵ストローク調整ネジ１７ｄとの接触部との間の長さになり、Ｌ８は、質量体支持部１５ｅの回動軸部１５ｆと、被駆動部材１１ｆと鍵ストローク調整ネジ１７ｄとの接触部との間の長さになる。また、Ｌ９は、鍵１１の支点Ｏと、鍵１１の支点Ｏが位置する水平面と反力発生部材５６の中心軸とが交差する点との間の長さになり、Ｌ１０は、質量体支持部１５ｅの回動軸部１５ｆと、回動軸部１５ｆが位置する水平面と反力発生部材５４の中心軸とが交差する点との間の長さになる。
When this relationship is applied to the reaction force generating members 54 and 56 of the keyboard device A1, L7 is the length between the fulcrum O of the key 11 and the contact portion between the driven member 11f and the key stroke adjusting screw 17d. Therefore, L8 is the length between the rotation shaft portion 15f of the mass body support portion 15e and the contact portion between the driven member 11f and the key stroke adjusting screw 17d. L9 is the length between the fulcrum O of the key 11 and the point where the horizontal plane where the fulcrum O of the key 11 is located and the central axis of the reaction force generating member 56 intersects, and L10 is the mass support This is the length between the rotation shaft portion 15f of the portion 15e and the point where the horizontal plane where the rotation shaft portion 15f is located and the central axis of the reaction force generating member 54 intersect.
Ｈ７は、鍵１１の支点Ｏが位置する水平面と反力発生部材５６の中心軸とが交差する点から反力発生部材５６が発生する反力がピークに達したときの反力発生部材５６の上端までの高さになり、Ｈ８は、回動軸部１５ｆが位置する水平面と反力発生部材５４の中心軸とが交差する点から反力発生部材５４が発生する反力がピークに達したときの反力発生部材５４の上端までの高さになる。したがって、これらの数値が式９の関係を満たすことにより、鍵盤装置Ａ１において、反力付与部５０ａと反力付与部５０ｂとが発生する反力が同時にピークに達する。
H7 is the reaction force generating member 56 when the reaction force generated by the reaction force generating member 56 reaches the peak from the point where the horizontal plane where the fulcrum O of the key 11 is located and the central axis of the reaction force generating member 56 intersects. At H8, the reaction force generated by the reaction force generating member 54 peaked from the point where the horizontal plane where the rotation shaft portion 15f is located and the central axis of the reaction force generating member 54 intersects. It becomes the height to the upper end of the reaction force generation member 54. Therefore, when these numerical values satisfy the relationship of Equation 9, the reaction force generated by the reaction force application unit 50a and the reaction force application unit 50b simultaneously reaches a peak in the keyboard device A1.
この鍵盤装置Ａ１によると、反力付与部を、質量体５７の下方に設置された反力付与部５０ａと、鍵１１の下方に設置された反力付与部５０ｂとで構成しているため、一か所に大きな設置場所がない場合であっても、複数の反力発生部材を設置できる。これによって、反力の大きさを十分に大きくでき、また、良好なクリック感を得られる。この鍵盤装置Ａ１のそれ以外の作用効果は、前述した鍵盤装置Ａと同様である。反力発生部材５５，５６の一方を省略する場合には、設置する他方を２つの電気接点を備えたもので構成するか、別途他の鍵スイッチを設けるようにする。さらに、鍵１１の後部の上方に反力発生部材を設けることもでき、この場合、反力発生部材５６を省略してもよい。
According to the keyboard device A1, the reaction force application unit is composed of the reaction force application unit 50a installed below the mass body 57 and the reaction force application unit 50b installed below the key 11. Even when there is no large installation place in one place, a plurality of reaction force generating members can be installed. As a result, the magnitude of the reaction force can be sufficiently increased, and a good click feeling can be obtained. The other effects of the keyboard device A1 are the same as those of the keyboard device A described above. When one of the reaction force generating members 55 and 56 is omitted, the other to be installed is configured with two electrical contacts, or another key switch is separately provided. Further, a reaction force generating member can be provided above the rear portion of the key 11, and in this case, the reaction force generating member 56 may be omitted.
ａ４．第１実施形態の第４変形例
図９は、前述した第１実施形態の第４変形例に係る鍵盤装置Ａ２を示す。この鍵盤装置Ａ２では、静止構造体６０の上面に設けられた鍵支持部材６２に回動中心６１ａを中心として鍵６１が回動可能に支持され、静止構造体６０の上面における鍵支持部材６２の前方には、鍵６１の押鍵に対して反力を発生する反力発生部材６５，６６およびばね６１ｂとが後方から前方に向かって順に配置される。反力発生部材６５，６６は、前述した反力発生部材２５，２６と同様の構成をしており、鍵６１に対する位置関係も、反力発生部材２５，２６と鍵１１との位置関係と同様になっている。
a4. Fourth Modified Example of First Embodiment FIG. 9 shows a keyboard device A2 according to the fourth modified example of the first embodiment described above. In the keyboard device A2, the key 61 is rotatably supported around a rotation center 61a by a key support member 62 provided on the upper surface of the stationary structure 60, and the key support member 62 on the upper surface of the stationary structure 60 is supported. In the front, reaction force generating members 65 and 66 that generate a reaction force against the key pressing of the key 61 and the spring 61b are sequentially arranged from the rear toward the front. The reaction force generating members 65 and 66 have the same configuration as the reaction force generating members 25 and 26 described above, and the positional relationship with respect to the key 61 is the same as the positional relationship between the reaction force generating members 25 and 26 and the key 11. It has become.
静止構造体６０の上面における鍵支持部材６２の後方には、鍵６１の後部の下降位置を規制する非押鍵時ストッパ６３が設けられ、非押鍵時ストッパ６３の後方には後部支持部材６４を介して質量体６７が回動自在に取り付けられる。この質量体６７は、押鍵により鍵６１の後部が上方に移動したときに、鍵６１の後端部に押し上げられて図１０の時計周り方向に回転し、離鍵時には、自重によって反時計周り方向に回転して鍵６１を時計周り方向に回転させる。また、静止構造体６０における質量体６７の先端部に対向する部分には、押鍵時の質量体６７の回転を規制する押鍵時ストッパ６３ａが設けられ、静止構造体６０における質量体６７の中央部分に対向する部分には、押鍵によって回転する質量体６７に押圧されてオンに作動する鍵スイッチ６８が設けられる。
A non-key-pressing stopper 63 that restricts the lowering position of the rear part of the key 61 is provided behind the key support member 62 on the upper surface of the stationary structure 60, and a rear support member 64 is provided behind the non-key-pressing stopper 63. The mass body 67 is rotatably attached via the. This mass body 67 is pushed up by the rear end of the key 61 when the rear part of the key 61 is moved upward by the key depression and rotates in the clockwise direction in FIG. 10, and counterclockwise by its own weight when the key is released. Rotate in the direction to rotate the key 61 in the clockwise direction. Further, a key-pressing stopper 63a for restricting the rotation of the mass body 67 at the time of key pressing is provided at a portion of the stationary structure 60 that faces the tip of the mass body 67. A key switch 68 that is turned on by being pressed by a mass body 67 that is rotated by pressing a key is provided at a portion that faces the central portion.
この鍵盤装置Ａ２においては、鍵６１の押鍵に対して反力を発生する反力発生部材として、反力発生部材６５，６６に加えてばね６１ｂを設けているため、より大きな反力を発生する。この第４変形例に係る鍵盤装置Ａ２のそれ以外の作用効果は、前述した鍵盤装置Ａと同様である。なお、鍵盤装置Ａ２においては、反力発生部材６５，６６と鍵６１との位置関係を、第１実施形態に係る鍵盤装置Ａの反力発生部材２５，２６と鍵１１との位置関係と同じにすることに限らず、前述した第１変形例や第２変形例と同様になるように変更してもよい。また、反力発生部材６５，６６の一方を鍵支持部材６２と非押鍵時ストッパ６３との間に設置してもよい。さらに、反力発生部材６５，６６の一方を、静止構造体６０における押鍵時ストッパ６３ａや鍵スイッチ６８の近傍に設置して、質量体６７を介して鍵６１に反力を付与するようにしてもよい。
In this keyboard apparatus A2, since a spring 61b is provided in addition to the reaction force generating members 65 and 66 as a reaction force generating member for generating a reaction force against the key depression of the key 61, a larger reaction force is generated. To do. The other operations and effects of the keyboard device A2 according to the fourth modification are the same as those of the keyboard device A described above. In the keyboard device A2, the positional relationship between the reaction force generating members 65 and 66 and the key 61 is the same as the positional relationship between the reaction force generating members 25 and 26 and the key 11 of the keyboard device A according to the first embodiment. However, the present invention is not limited to this, and it may be changed so as to be the same as the first and second modified examples described above. Further, one of the reaction force generating members 65 and 66 may be installed between the key support member 62 and the non-key-pressing stopper 63. Further, one of the reaction force generating members 65 and 66 is installed in the vicinity of the key-pressing stopper 63a and the key switch 68 in the stationary structure 60 so as to apply a reaction force to the key 61 via the mass body 67. May be.
ａ５．第１実施形態の第５変形例
図１０は、前述した第１実施形態の第５変形例に係る鍵盤装置Ａ３を示す。この鍵盤装置Ａ３では、棚板７０の上面に鍵盤を支持する鍵盤フレーム７２が設けられ、鍵盤フレーム７２の後端上部に鍵並び方向に延びる支持部７２ａが設けられる。支持部７２ａには、下面に凹部が形成された鍵７１が、後端側の回動中心７１ａを中心として回動可能に支持されるとともに質量体７７が支点７７ｄを中心に回動自在に支持される。鍵７１からは、垂下片７１ｂが下方に向かって突出し、垂下片７１ｂの下方には、質量体７７の前端部が位置して、鍵７１の回動に応じて質量体７７が駆動される。
a5. 10 shows a keyboard device A3 according to a fifth modification of the first embodiment described above. In the keyboard device A3, a keyboard frame 72 that supports the keyboard is provided on the upper surface of the shelf board 70, and a support portion 72a that extends in the key arrangement direction is provided at the upper rear end of the keyboard frame 72. A key 71 having a recess formed on the lower surface is supported on the support portion 72a so as to be rotatable about a rotation center 71a on the rear end side, and the mass body 77 is supported to be rotatable about a fulcrum 77d. Is done. A drooping piece 71 b protrudes downward from the key 71, and a front end portion of the mass body 77 is positioned below the drooping piece 71 b, and the mass body 77 is driven according to the rotation of the key 71.
棚板７０の上面における質量体７７の後端部に対向する部分に、質量体７７の後端部の下降位置を規制する非押鍵時ストッパ７７ａが設けられる。さらに、鍵盤フレーム７２における質量体７７の後端部上面に対向する部分に、質量体７７の後端部の上昇位置を規制する押鍵時ストッパ７７ｂが設けられる。また、鍵盤フレーム７２の上面部７２ｂにおける各鍵７１に対応する部分の中央に、ばね通し孔７２ｃが形成され、このばね通し孔７２ｃに質量体７７の後部を下方に押し下げるＳ字状ばね７３が通っている。
A non-key-pressing stopper 77 a for restricting the descending position of the rear end portion of the mass body 77 is provided at a portion facing the rear end portion of the mass body 77 on the upper surface of the shelf board 70. Further, a key-pressing stopper 77 b for restricting the rising position of the rear end portion of the mass body 77 is provided at a portion of the keyboard frame 72 that faces the upper surface of the rear end portion of the mass body 77. In addition, a spring through hole 72c is formed at the center of the portion corresponding to each key 71 on the upper surface portion 72b of the keyboard frame 72, and an S-shaped spring 73 that pushes the rear portion of the mass body 77 downward in the spring through hole 72c. Passing through.
上面部７２ｂに、鍵７１の押鍵に対して反力を発生する反力発生部材７５，７６が後方から前方に順に設置される。この反力発生部材７５，７６は、前述した反力発生部材２５，２６と同様の構成をしており、鍵７１に対する位置関係は、反力発生部材２５，２６と鍵１１との位置関係と同様になっている。鍵盤フレーム７２における質量体７７の前部に対向する部分には、スイッチ基板７８ａが取り付けられ、スイッチ基板７８ａの上面には鍵スイッチ７８が固定される。質量体７７の前部における鍵スイッチ７８に対向する部分には、下方に突出するスイッチ駆動部７７ｃが形成され、押鍵により、このスイッチ駆動部７７ｃが鍵スイッチ７８を押してオン状態にする。
On the upper surface portion 72b, reaction force generating members 75 and 76 that generate a reaction force against the key pressing of the key 71 are sequentially installed from the rear to the front. The reaction force generating members 75 and 76 have the same configuration as the reaction force generating members 25 and 26 described above, and the positional relationship with respect to the key 71 is the same as the positional relationship between the reaction force generating members 25 and 26 and the key 11. It is the same. A switch board 78a is attached to a portion of the keyboard frame 72 facing the front part of the mass body 77, and the key switch 78 is fixed to the upper surface of the switch board 78a. A switch driving portion 77c that protrudes downward is formed at a portion of the front portion of the mass body 77 that faces the key switch 78, and the switch driving portion 77c presses the key switch 78 to turn it on by pressing the key.
鍵盤フレーム７２における鍵スイッチ７８の前方近傍には、反力発生部材７４が設置されている。この反力発生部材７４は、鍵７１の押鍵により、質量体７７の前端部が垂下片７１ｂに押されて下降するときに、質量体７７の前端部に押圧されるようにして設置され、質量体７７に対して反力を発生する。なお、反力発生部材７４は、反力発生部材７５，７６と大きさ及び形状は同じでも異なっていてもよいが、反力発生部材７４，７５，７６はすべて、鍵７１の押鍵により発生する反力が同時にピークに達するように配置される。
A reaction force generating member 74 is installed near the front of the key switch 78 in the keyboard frame 72. The reaction force generating member 74 is installed so that when the front end portion of the mass body 77 is pushed down by the hanging piece 71b and is lowered by the depression of the key 71, it is pressed against the front end portion of the mass body 77. A reaction force is generated against the mass body 77. The reaction force generation member 74 may be the same or different in size and shape from the reaction force generation members 75, 76, but all of the reaction force generation members 74, 75, 76 are generated by pressing the key 71. It arrange | positions so that the reaction force to do may reach a peak simultaneously.
この第５変形例に係る鍵盤装置Ａ３のそれ以外の作用効果は、前述した変形例３の鍵盤装置Ａ１と同様である。
The other operations and effects of the keyboard device A3 according to the fifth modification are the same as those of the keyboard device A1 of the modification 3.
なお、鍵盤装置Ａ３においても、反力発生部材７５，７６と鍵７１との位置関係を、第１実施形態に係る鍵盤装置Ａの反力発生部材２５，２６と鍵１１との位置関係と同じにすることに限らず、前述した第１変形例や第２変形例と同様にしてもよい。また、反力発生部材７４，７５，７６のいずれか一つを省略してもよいし、反力発生部材７５，７６の一方を反力発生部材７４に並べて配置してもよい。さらに、質量体７７の後部が上方に移動したときに質量体７７の後部に当接できる位置に反力発生部材を設けてもよい。
Also in the keyboard device A3, the positional relationship between the reaction force generating members 75 and 76 and the key 71 is the same as the positional relationship between the reaction force generating members 25 and 26 and the key 11 of the keyboard device A according to the first embodiment. However, the present invention may be the same as the first and second modified examples described above. In addition, any one of the reaction force generation members 74, 75, 76 may be omitted, or one of the reaction force generation members 75, 76 may be arranged side by side on the reaction force generation member 74. Further, a reaction force generation member may be provided at a position where the rear portion of the mass body 77 can contact the rear portion of the mass body 77 when the rear portion moves upward.
ａ６．第１実施形態の第６変形例
図１１は、前述した第１実施形態の第６変形例に係る鍵盤装置Ａ４を示す。この鍵盤装置Ａ４では、棚板８０の上面に鍵盤を支持する鍵盤フレーム８２が設けられ、鍵盤フレーム８２の後部に支持ピン８２ａが設けられる。そして、支持ピン８２ａに、鍵８１の後端部が回動可能に支持され、鍵８１の後部下面には、鍵８１及び質量体８７を上方に付勢する板ばね８３が設けられる。この鍵８１の前部下面からは、ストッパ片８１ａと、ストッパ片８１ａの後方から略Ｌ形のストッパ片８１ｂとが設けられる。
a6. Sixth Modification of First Embodiment FIG. 11 shows a keyboard device A4 according to the sixth modification of the first embodiment described above. In the keyboard device A4, a keyboard frame 82 for supporting the keyboard is provided on the upper surface of the shelf board 80, and a support pin 82a is provided at the rear of the keyboard frame 82. A rear end portion of the key 81 is rotatably supported by the support pin 82a, and a leaf spring 83 that urges the key 81 and the mass body 87 upward is provided on the lower surface of the rear portion of the key 81. From the front lower surface of the key 81, a stopper piece 81a and a substantially L-shaped stopper piece 81b are provided from the rear of the stopper piece 81a.
鍵フレーム８２には、押鍵時ストッパ８４ａと非押鍵時ストッパ８４ｂが設けられ、押鍵時ストッパ８４ａは押鍵時にストッパ片８１ａに当接して鍵８１の前端部の下降位置を規制し、非押鍵時ストッパ８４ｂは、非押鍵時にストッパ片８１ｂに当接して鍵８１の前端部の上昇位置を規制する。また、鍵盤フレーム８２の前部には上方に延びる鍵ガイド８４が設けられ、鍵盤フレーム８２の上面部８２ｂの後部寄りの部分に支持ピン８２ｃが設けられ、この支持ピン８２ｃに質量体８７の後部が回動可能に支持される。
The key frame 82 is provided with a key-pressing stopper 84a and a non-key-pressing stopper 84b. The key-pressing stopper 84a abuts against the stopper piece 81a when the key is pressed to regulate the lowered position of the front end of the key 81. The non-key-pressing stopper 84b abuts against the stopper piece 81b when the key is not pressed, and restricts the raised position of the front end portion of the key 81. A key guide 84 extending upward is provided at the front portion of the keyboard frame 82, and a support pin 82c is provided near the rear portion of the upper surface portion 82b of the keyboard frame 82. The rear portion of the mass body 87 is provided on the support pin 82c. Is rotatably supported.
質量体８７は、押鍵により鍵８１が図１１の反時計周り方向に回転すると、鍵８１に押圧されて鍵８１とともに図１１の反時計周り方向に回転する。鍵盤フレーム８２の中央下部における質量体８７の中央下部の下面に対向する部分に、質量体８７の衝撃を緩和するとともに質量体８７の下降位置を規制するクッション部材８７ａが設けられ、鍵盤フレーム８２における質量体８７の前部の上面に対向する部分に、質量体８７の上昇位置を規制する非押鍵時ストッパ８７ｂが設けられる。
When the key 81 is rotated counterclockwise in FIG. 11 by pressing the key, the mass body 87 is pressed by the key 81 and rotates together with the key 81 in the counterclockwise direction in FIG. A cushion member 87 a that reduces the impact of the mass body 87 and restricts the lowering position of the mass body 87 is provided at a portion of the lower center portion of the keyboard frame 82 that faces the lower surface of the lower center portion of the mass body 87. A non-key-pressing stopper 87b for restricting the rising position of the mass body 87 is provided at a portion facing the upper surface of the front portion of the mass body 87.
鍵盤フレーム８２の上面部８２ｂには、質量体８７を回動可能にするための質量体通し孔８２ｄが形成され、上面部８２ｂにおけるこの質量体通し孔８２ｄの前方に、鍵８１の押鍵に対して反力を発生する反力発生部材８５，８６が後方から前方に順に設置される。この反力発生部材８５，８６は、前述した反力発生部材２５，２６と同様の構成をしており、鍵８１に対する位置関係が、反力発生部材２５，２６と鍵１１との位置関係と同様になっている。また、上面部８２ｂの上面における支持ピン８２ｃの前方には、鍵スイッチ８８が固定される。この鍵スイッチ８８は、押鍵により質量体８７が回動したときに、質量体８７に押されてオン状態になる。
A mass body through-hole 82d for allowing the mass body 87 to turn is formed in the upper surface portion 82b of the keyboard frame 82, and the key 81 is depressed in front of the mass body through-hole 82d in the upper surface portion 82b. On the other hand, reaction force generating members 85 and 86 that generate a reaction force are installed in order from the rear to the front. The reaction force generation members 85 and 86 have the same configuration as the reaction force generation members 25 and 26 described above, and the positional relationship with respect to the key 81 is the same as the positional relationship between the reaction force generation members 25 and 26 and the key 11. It is the same. A key switch 88 is fixed in front of the support pin 82c on the upper surface of the upper surface portion 82b. The key switch 88 is pressed by the mass body 87 and turned on when the mass body 87 is rotated by the key depression.
この第６変形例に係る鍵盤装置Ａ４によっても、前述した鍵盤装置Ａと同様の作用効果を得ることができる。また、第６変形例に係る鍵盤装置Ａ４においても、反力発生部材８５，８６と鍵８１との位置関係を、第１実施形態に係る鍵盤装置Ａの反力発生部材２５，２６と鍵１１との位置関係と同じにすることに限らず、前述した第１変形例や第２変形例と同様にしてもよい。さらに、棚板８０の上面または鍵盤フレーム８２におけるストッパ片８１ｂの下端部に対向する部分にも、反力発生部材を設けることができる。この場合もすべての反力発生部材８５，８６等は、鍵８１の押鍵により発生する反力が同時にピークに達するように配置する。また、ストッパ片８１ｂ下方に、反力発生部材を設けることによって、反力発生部材８５，８６のいずれか一方を省略することもできる。
Also with the keyboard device A4 according to the sixth modification, the same operational effects as those of the keyboard device A described above can be obtained. Also in the keyboard device A4 according to the sixth modified example, the positional relationship between the reaction force generating members 85 and 86 and the key 81 is the same as the reaction force generating members 25 and 26 and the key 11 of the keyboard device A according to the first embodiment. It is not limited to be the same as the positional relationship between and the same as in the first and second modified examples described above. Furthermore, a reaction force generating member can be provided on the upper surface of the shelf plate 80 or the portion of the keyboard frame 82 that faces the lower end portion of the stopper piece 81b. Also in this case, all the reaction force generating members 85, 86, etc. are arranged so that the reaction force generated by pressing the key 81 reaches a peak at the same time. Further, by providing a reaction force generation member below the stopper piece 81b, one of the reaction force generation members 85 and 86 can be omitted.
ａ７．第１実施形態の第７変形例
図１２は、前述した第１実施形態の第７変形例に係る鍵盤装置Ａ５を示す。この鍵盤装置Ａ５では、底面板１４０の上面に鍵盤を支持する台状の鍵盤フレーム１４２が設けられ、鍵盤フレーム１４２の後端側（図１２では左端側）の上部に鍵並び方向に延びる鍵支持部１４２ａが設けられる。鍵支持部１４２ａに、下面に凹部が形成された鍵１４１が、後端側の回動軸部１４１ａを中心として回動可能に支持される。鍵１４１の内部中央にはアクチュエータ１４１ｃが形成される。鍵１４１には、垂下片１４１ｄが突出し、垂下片１４１ｄの下部には、前後に貫通する筒状の保持部１４１ｅが形成される。
a7. Seventh Modification of First Embodiment FIG. 12 shows a keyboard device A5 according to the seventh modification of the first embodiment described above. In this keyboard device A5, a table-like keyboard frame 142 that supports the keyboard is provided on the upper surface of the bottom plate 140, and a key support that extends in the key arrangement direction above the rear end side (left end side in FIG. 12) of the keyboard frame 142. A portion 142a is provided. A key 141 having a recess formed on the lower surface is supported by the key support portion 142a so as to be rotatable about a rotation shaft portion 141a on the rear end side. An actuator 141 c is formed at the center inside the key 141. A drooping piece 141d protrudes from the key 141, and a cylindrical holding portion 141e penetrating in the front-rear direction is formed at a lower portion of the drooping piece 141d.
鍵盤フレーム１４２は、後部台１４２ｂと、後部台１４２ｂよりも低い前部台１４２ｃと、質量体支持部１４２ｄが形成される。この質量体支持部１４２ｄに、質量体１４７が回動軸部１４２ｅを中心として回動可能に取り付けられ、質量体１４７の前端部１４７ａは、垂下片１４１ｄの保持部１４１ｅ内に摺動可能に係合し、押鍵により鍵１４１が下降すると、質量体１４７は、図１２の状態で時計周り方向に回転する。
The keyboard frame 142 is formed with a rear base 142b, a front base 142c lower than the rear base 142b, and a mass body support portion 142d. The mass body 147 is attached to the mass body support portion 142d so as to be rotatable about the rotation shaft portion 142e, and the front end portion 147a of the mass body 147 is slidably engaged with the holding portion 141e of the hanging piece 141d. When the key 141 is lowered by the key depression, the mass body 147 rotates in the clockwise direction in the state of FIG.
質量体１４７は、前後に延びる長い棒状部材で構成され、後端側に重り１４７ｂが取り付けられる。底面板１４０の上面における質量体１４７の後端部１４７ｃの下面に対向する部分には、質量体１４７の後端部１４７ｃの下降位置を規制する非押鍵時ストッパ１４７ｄが設けられ、鍵盤フレーム１４２における質量体１４７の後端部１４７ｃの上面に対向する部分には、質量体１４７の後端部１４７ｃの上昇位置を規制する押鍵時ストッパ１４７ｅが設けられる。また、鍵盤フレーム１４２の後部台１４２ｂには、質量体通し孔１４２ｆが形成され、質量体１４７の後部は、質量体通し孔１４２ｆを通って、質量体支持部１４２ｄの上方から、底面板１４０と後部台１４２ｂとの間の後部側に延びている。
The mass body 147 is composed of a long rod-like member extending in the front-rear direction, and a weight 147b is attached to the rear end side. A non-key-pressing stopper 147d for restricting the lowering position of the rear end portion 147c of the mass body 147 is provided on a portion of the upper surface of the bottom plate 140 facing the lower surface of the rear end portion 147c of the mass body 147. A key-pressing stopper 147e for restricting the ascending position of the rear end portion 147c of the mass body 147 is provided at a portion facing the upper surface of the rear end portion 147c of the mass body 147. Further, a mass body through hole 142f is formed in the rear base 142b of the keyboard frame 142, and the rear part of the mass body 147 passes through the mass body through hole 142f and is connected to the bottom plate 140 from above the mass body support portion 142d. It extends to the rear side between the rear base 142b.
前部台１４２ｃの上面前部には、垂下片１４１ｄの下端部に対向して反力発生部材１４５が設置され、この反力発生部材１４５は、鍵１４１の押鍵に対して反力を発生する。また、後部台１４２ｂの下面に、質量体１４７に対向して反力発生部材１４６が設置される。この反力発生部材１４６は、トップ部１４６ａを下方に向けて設置され、鍵１４１の押鍵により上昇する質量体１４７の略中央部分に当接し、質量体１４７を介して鍵１４１に対して反力を発生する。この反力発生部材１４５，１４６は、前述した反力発生部材２５，２６と同様の構成をしており、鍵１４１の押鍵により発生する反力が同時にピークに達するように配置される。
A reaction force generating member 145 is installed at the front upper surface of the front base 142c so as to face the lower end portion of the hanging piece 141d. The reaction force generating member 145 generates a reaction force against the key pressed by the key 141. To do. Further, a reaction force generation member 146 is installed on the lower surface of the rear base 142b so as to face the mass body 147. The reaction force generating member 146 is installed with the top portion 146a facing downward, abuts on a substantially central portion of the mass body 147 that is raised by pressing the key 141, and reacts against the key 141 via the mass body 147. Generate power. The reaction force generation members 145 and 146 have the same configuration as the reaction force generation members 25 and 26 described above, and are arranged so that the reaction force generated by pressing the key 141 reaches a peak at the same time.
後部台１４２ｂの前部側の低い部分の上面には、スイッチ基板１４８が取り付けられ、スイッチ基板１４８の上面には、鍵１４１のアクチュエータ１４１ｃに対向して一対の反力発生部材１４８ａ，１４８ｂが固定される。反力発生部材１４８ａ，１４８ｂは、前述した反力発生部材５４，５５と同様の構成をしており、鍵スイッチとしての機能と反力発生部材としての機能とを備える。このため、押鍵により、鍵１４１が下降すると、アクチュエータ１４１ｃが、反力発生部材１４８ａ，１４８ｂを押してオン状態にする。
A switch board 148 is attached to the upper surface of the lower portion on the front side of the rear base 142b, and a pair of reaction force generating members 148a and 148b are fixed to the upper surface of the switch board 148 so as to face the actuator 141c of the key 141. Is done. The reaction force generation members 148a and 148b have the same configuration as the reaction force generation members 54 and 55 described above, and have a function as a key switch and a function as a reaction force generation member. For this reason, when the key 141 is lowered by the key depression, the actuator 141c pushes the reaction force generation members 148a and 148b to turn them on.
この鍵盤装置Ａ５においては、鍵１４１の押鍵に対して反力を発生する反力発生部材として、鍵１４１に対して直接反力を発生する反力発生部材１４５と、質量体１４７を介して鍵１４１に対して反力を発生する反力発生部材１４６とが備わっている。さらに、鍵１４１に対して直接反力を発生し、鍵スイッチとしても機能する反力発生部材１４８ａ，１４８ｂも備わっている。このため、より大きな反力を発生することができる。また、反力発生部材１４５，１４６，１４８ａ，１４８ｂを分散して種々の場所に配置することにより多くの反力発生部材を設置することができる。この第７変形例に係る鍵盤装置Ａ５のそれ以外の作用効果は、前述した鍵盤装置Ａ３と同様である。
In the keyboard device A5, a reaction force generating member 145 that directly generates a reaction force against the key 141 and a mass body 147 as a reaction force generating member that generates a reaction force against the key 141 pressed. A reaction force generating member 146 that generates a reaction force against the key 141 is provided. Furthermore, reaction force generating members 148a and 148b that directly generate a reaction force against the key 141 and function as a key switch are also provided. For this reason, a larger reaction force can be generated. Moreover, many reaction force generating members can be installed by dispersing the reaction force generating members 145, 146, 148a and 148b and disposing them at various locations. The other operations and effects of the keyboard device A5 according to the seventh modification are the same as those of the keyboard device A3 described above.
ａ８．第１実施形態の第８変形例
図１３は、前述した第１実施形態の第８変形例に係る鍵盤装置Ａ６を示す。この鍵盤装置Ａ６では、鍵盤を支持する鍵盤フレーム１５２に、後面壁１５２ｃが備わり、後面壁１５２ｃの上端に、下面に凹部が形成された鍵１５１の後端部１５１ｄが取り付けられる。鍵１５１の後端近傍には薄肉部１５１ａが形成され、鍵１５１は薄肉部１５１ａを中心として上下に回動可能になる。この鍵１５１の内部にはアクチュエータ１５１ｃが形成される。鍵１５１から垂下片１５１ｄが下方に向かって突出し、垂下片１５１ｄには、前後に貫通する筒状の保持部１５１ｅが形成される。
a8. Eighth Modification of First Embodiment FIG. 13 shows a keyboard device A6 according to the eighth modification of the first embodiment described above. In this keyboard device A6, a keyboard frame 152 that supports the keyboard is provided with a rear wall 152c, and a rear end portion 151d of a key 151 having a recess formed on the lower surface is attached to the upper end of the rear wall 152c. A thin portion 151a is formed in the vicinity of the rear end of the key 151, and the key 151 can be turned up and down around the thin portion 151a. An actuator 151 c is formed inside the key 151. A hanging piece 151d protrudes downward from the key 151, and a tubular holding portion 151e penetrating in the front-rear direction is formed in the hanging piece 151d.
鍵盤フレーム１５２には、台部１５２ｄが設けられ、その上面前部には、質量体支持部１５２ｅが形成される。質量体支持部１５２ｅに、質量体１５７が回動軸部１５２ｆを中心として回動可能に取り付けられる。質量体１５７の前端部１５７ａは、保持部１５１ｅ内に摺動可能に係合し、押鍵により鍵１５１が下降すると、質量体１５７は、図１３の状態で反時計周り方向に回転する。
The keyboard frame 152 is provided with a base portion 152d, and a mass body support portion 152e is formed on the front surface of the keyboard portion 152d. The mass body 157 is attached to the mass body support portion 152e so as to be rotatable about the rotation shaft portion 152f. The front end portion 157a of the mass body 157 is slidably engaged in the holding portion 151e, and when the key 151 is lowered by pressing the key, the mass body 157 rotates counterclockwise in the state of FIG.
鍵盤フレーム１５２において、質量体１５７の後端部１５７ｂの下面に対向する部分には、質量体１５７の後端部１５７ｂの下降位置を規制する非押鍵時ストッパ１５７ｃが設けられ、質量体１５７の後端部１５７ｂの上面に対向する部分には、質量体１５７の後端部１５７ｂの上昇位置を規制する押鍵時ストッパ１５７ｄが設けられる。
In the keyboard frame 152, a non-key-pressing stopper 157 c for restricting the lowering position of the rear end portion 157 b of the mass body 157 is provided at a portion facing the lower surface of the rear end portion 157 b of the mass body 157. A key pressing stopper 157d for restricting the ascending position of the rear end 157b of the mass body 157 is provided at a portion facing the upper surface of the rear end 157b.
台部１５２ｄには、質量体１５７における前端部１５７ａと回動軸部１５２ｆとの間の部分に対向して反力発生部材１５５が設置され、質量体１５７の中央部分に対向して、トップ部１５６ａを下方に向けて反力発生部材１５６が設置される。反力発生部材１５５は、鍵１５１の押鍵により下降する質量体１５７の前部に当接し、質量体１５７を介して鍵１５１に対して反力を発生し、反力発生部材１５６は、鍵１５１の押鍵により上昇する質量体１５７の中央部に当接し、質量体１５７を介して鍵１５１に対して反力を発生する。反力発生部材１５５，１５６は、前述した反力発生部材２５，２６と同様の構成をしており、鍵１５１の押鍵により発生する反力が同時にピークに達するように配置される。
The base portion 152d is provided with a reaction force generating member 155 facing the portion between the front end portion 157a and the rotating shaft portion 152f of the mass body 157, facing the center portion of the mass body 157, and the top portion. The reaction force generating member 156 is installed with 156a facing downward. The reaction force generation member 155 abuts on the front portion of the mass body 157 that is lowered by pressing the key 151, generates a reaction force against the key 151 via the mass body 157, and the reaction force generation member 156 The center of the mass body 157 rising by pressing the key 151 comes into contact with the key 151 and generates a reaction force against the key 151 via the mass body 157. The reaction force generation members 155 and 156 have the same configuration as the reaction force generation members 25 and 26 described above, and are arranged so that the reaction force generated by pressing the key 151 simultaneously reaches a peak.
台部１５２ｄの上面中央には、スイッチ基板１５８が取り付けられ、スイッチ基板１５８の上面には、鍵１５１のアクチュエータ１５１ｃに対向して一対の反力発生部材１５８ａ，１５８ｂが固定される。反力発生部材１５８ａ，１５８ｂは、前述した反力発生部材５４，５５と同様の構成をしており、鍵スイッチとしての機能と反力発生部材としての機能を備える。このため、押鍵により、鍵１５１が下降すると、アクチュエータ１５１ｃが、反力発生部材１５８ａ，１５８ｂを押してオン状態にする。
A switch substrate 158 is attached to the center of the upper surface of the base portion 152d, and a pair of reaction force generating members 158a and 158b are fixed to the upper surface of the switch substrate 158 so as to face the actuator 151c of the key 151. The reaction force generation members 158a and 158b have the same configuration as the reaction force generation members 54 and 55 described above, and have a function as a key switch and a function as a reaction force generation member. For this reason, when the key 151 is lowered by the key depression, the actuator 151c pushes the reaction force generating members 158a and 158b to turn them on.
この鍵盤装置Ａ６においては、鍵１５１の押鍵に対して反力を発生する反力発生部材として、質量体１５７を介して鍵１５１に対して反力を発生する反力発生部材１５５，１５６に加えて、鍵１５１に対して直接反力を発生し、鍵スイッチとしても機能する反力発生部材１５８ａ，１５８ｂも備わっている。このため、より大きな反力を発生することができる。また、鍵スイッチとしての機能と反力発生部材としての機能とを備える反力発生部材１５８ａ，１５８ｂを鍵１５１の下方に設置し、反力発生部材としての機能だけを備える反力発生部材１５５，１５６を質量体１５７に対向させて設置するため、複数の場所に分散させて機能に応じた反力発生部材を設置することができる。この第８変形例に係る鍵盤装置Ａ６のそれ以外の作用効果は、前述した鍵盤装置Ａ５と同様である。
In the keyboard device A6, reaction force generation members 155 and 156 that generate a reaction force against the key 151 via the mass body 157 are used as reaction force generation members that generate a reaction force against the key 151 pressed. In addition, reaction force generating members 158a and 158b that directly generate a reaction force against the key 151 and also function as a key switch are provided. For this reason, a larger reaction force can be generated. Further, reaction force generation members 158a and 158b having a function as a key switch and a function as a reaction force generation member are installed below the key 151, and a reaction force generation member 155 having only a function as a reaction force generation member is provided. Since 156 is installed to face the mass body 157, reaction force generating members according to functions can be installed by being dispersed in a plurality of places. The other operations and effects of the keyboard device A6 according to the eighth modification are the same as those of the keyboard device A5 described above.
ａ９．第１実施形態の第９変形例
図１４は、前述した第１実施形態の第９変形例に係る鍵盤装置Ａ７を示す。この鍵盤装置Ａ７では、鍵盤を支持する鍵盤フレーム１６２に、設置部材１６３が設けられる。設置部材１６３の後端上部には、鍵支持部１６３ａが設けられ、この鍵支持部１６３ａに、鍵１６１の後端部が回動軸部１６１ａを中心として回動可能に支持される。また、設置部材１６３の前部側には、上下に貫通する質量体通し孔１６３ｂが形成され、質量体１６７は、設置部材１６３の左右両壁に掛け渡された回動軸部１６３ｃを中心として回動可能に取り付けられる。
a9. Ninth Modification of First Embodiment FIG. 14 shows a keyboard device A7 according to the ninth modification of the first embodiment described above. In the keyboard device A7, an installation member 163 is provided on a keyboard frame 162 that supports the keyboard. A key support portion 163a is provided on the rear end upper portion of the installation member 163, and the rear end portion of the key 161 is supported by the key support portion 163a so as to be rotatable about the rotation shaft portion 161a. In addition, a mass body through-hole 163b penetrating vertically is formed on the front side of the installation member 163, and the mass body 167 is centered on a rotation shaft portion 163c spanned on both the left and right walls of the installation member 163. Attached to be rotatable.
鍵１６１は、後部下面にアクチュエータ１６１ｃが形成され、アクチュエータ１６１ｃよりも前部側から、垂下片１６１ｄが下方に向かって突出し、垂下片１６１ｄの下端部には、後方に突出するフック部１６１ｅが形成される。さらに、鍵１６１の下面には、下方に突出する押圧部１６１ｆが形成される。
In the key 161, an actuator 161c is formed on the lower surface of the rear part, a hanging piece 161d protrudes downward from the front side of the actuator 161c, and a hook part 161e protruding backward is formed at the lower end of the hanging piece 161d. Is done. Further, a pressing portion 161 f that protrudes downward is formed on the lower surface of the key 161.
質量体１６７は、設置部材１６３の上方から、質量体通し孔１６３ｂを通って下方に延びたのちに前方に延びる屈曲した棒状の重りで構成され、後端には押圧片１６７ａが形成される。質量体１６７の後部上端には、鍵１６１の下面に設けられた押圧部１６１ｆが摺動可能に係合する凹部が形成され、押鍵により鍵１６１が下降すると、質量体１６７は、図１４の状態で反時計周り方向に回転する。
The mass body 167 is composed of a bent bar-like weight extending from the upper side of the installation member 163 through the mass body through hole 163b and then extending forward, and a pressing piece 167a is formed at the rear end. A recess is formed on the upper end of the rear portion of the mass body 167 so that a pressing portion 161f provided on the lower surface of the key 161 is slidably engaged. When the key 161 is lowered by the key pressing, the mass body 167 is Rotates counterclockwise in the state.
鍵盤フレーム１６２において、質量体１６７の前端部１６７ｂの下面に対向する部分には、質量体１６７の前端部１６７ｂの下降位置を規制する非押鍵時ストッパ１６４が設けられ、質量体１６７の前端部１６７ｂの上面に対向して、質量体１６７の前端部１６７ｂの上昇位置を規制する押鍵時ストッパ１６４ａが設けられる。設置部材１６３の下面前端近傍には、質量体１６７の中央部分の上面に対向して、質量体１６７の上昇位置を規制する押鍵時ストッパ１６４ｂが設けられる。
In the keyboard frame 162, a non-key-pressing stopper 164 for restricting the lowering position of the front end portion 167 b of the mass body 167 is provided at a portion facing the lower surface of the front end portion 167 b of the mass body 167. Opposing to the upper surface of 167b, a key-pressing stopper 164a for restricting the rising position of the front end portion 167b of the mass body 167 is provided. Near the front end of the lower surface of the installation member 163, a key-pressing stopper 164 b that restricts the rising position of the mass body 167 is provided so as to face the upper surface of the central portion of the mass body 167.
鍵１６１の下面に対向して、前面壁１６２ｂの水平部の上面には、鍵１６１の下降位置を規制する押鍵時ストッパ１６４ｃが設けられ、設置部材１６３の上面前端には、鍵１６１の下降位置を規制する押鍵時ストッパ１６４ｄが設けられる。設置部材１６３の下面前端には、フック部１６１ｅの上面に対向して、鍵１６１の上昇位置を規制する非押鍵時ストッパ１６４ｅが設けられる。このため、鍵１６１は、フック部１６１ｅが非押鍵時ストッパ１６４ｅに当接する非押鍵時位置と、鍵１６１の下面が押鍵時ストッパ１６４ｃ，１６４ｄに当接する押鍵時位置との間で上下方向に回動できる。また、質量体１６７は、非押鍵時ストッパ１６４に当接する非押鍵時位置と、押鍵時ストッパ１６４ａ，１６４ｂに当接する押鍵時位置との間で回動できる。
Opposite to the lower surface of the key 161, a key-pressing stopper 164c for restricting the lowering position of the key 161 is provided on the upper surface of the horizontal portion of the front wall 162b, and at the front end of the upper surface of the installation member 163, the key 161 is lowered. A key pressing stopper 164d for restricting the position is provided. At the front end of the lower surface of the installation member 163, a non-key-pressing stopper 164 e that restricts the raised position of the key 161 is provided to face the upper surface of the hook portion 161 e. For this reason, the key 161 is between the non-key-pressed position where the hook portion 161e contacts the stopper 164e when not pressed and the key-press position where the lower surface of the key 161 contacts the key-stop stoppers 164c and 164d. Can rotate in the vertical direction. Further, the mass body 167 can rotate between a non-key-pressing position that contacts the non-key-pressing stopper 164 and a key-pressing position that contacts the key-pressing stoppers 164a and 164b.
設置部材１６３の上面前部における押鍵時ストッパ１６４ｄの後方に、鍵１６１に対向して反力発生部材１６５が設置され、台部１６２ｃの上面前部に質量体１６７の押圧片１６７ａに対向して反力発生部材１６６が設置される。この反力発生部材１６６と押圧片１６７ａとは、質量体通し孔１６３ｂ内に位置している。反力発生部材１６５は、押鍵により下降する鍵１６１の下面に当接し、鍵１６１に対して反力を発生し、反力発生部材１６６は、鍵１６１の押鍵により下降する質量体１６７の押圧片１６７ａに当接し、質量体１６７を介して鍵１６１に対して反力を発生する。この反力発生部材１６５，１６６は、前述した反力発生部材２５，２６と同様の構成をしており、鍵１６１の押鍵により発生する反力が同時にピークに達するように配置される。
A reaction force generating member 165 is installed behind the key-pressing stopper 164d at the front upper portion of the installation member 163 so as to face the key 161, and is opposed to the pressing piece 167a of the mass body 167 at the upper front portion of the base portion 162c. Then, the reaction force generating member 166 is installed. The reaction force generating member 166 and the pressing piece 167a are located in the mass body through hole 163b. The reaction force generating member 165 contacts the lower surface of the key 161 that is lowered by pressing the key, generates a reaction force against the key 161, and the reaction force generating member 166 is a member of the mass body 167 that is lowered by pressing the key 161. Abutting against the pressing piece 167a, a reaction force is generated against the key 161 via the mass body 167. The reaction force generation members 165 and 166 have the same configuration as the reaction force generation members 25 and 26 described above, and are arranged so that the reaction force generated by pressing the key 161 simultaneously reaches a peak.
設置部材１６３の上面後部の凹部１６３ｄに、スイッチ基板１６８が取り付けられ、スイッチ基板１６８の上面に、鍵１６１のアクチュエータ１６１ｃに対向して一対の反力発生部材１６８ａ，１６８ｂが固定される。反力発生部材１６８ａ，１６８ｂは、前述した反力発生部材５４，５５と同様の構成をしており、鍵スイッチとしての機能と反力発生部材としての機能とを備える。このため、押鍵により、鍵１６１が下降すると、アクチュエータ１６１ｃが、反力発生部材１６８ａ，１６８ｂを押してオン状態にする。
The switch board 168 is attached to the recess 163d on the rear upper surface of the installation member 163, and a pair of reaction force generation members 168a and 168b are fixed to the upper surface of the switch board 168 so as to face the actuator 161c of the key 161. The reaction force generation members 168a and 168b have the same configuration as the reaction force generation members 54 and 55 described above, and have a function as a key switch and a function as a reaction force generation member. For this reason, when the key 161 is lowered by the key depression, the actuator 161c pushes the reaction force generating members 168a and 168b to turn them on.
この鍵盤装置Ａ７においては、鍵１６１の押鍵に対して反力を発生する反力発生部材として、鍵１６１に対して直接反力を発生する反力発生部材１６５と、質量体１６７を介して鍵１６１に対して反力を発生する反力発生部材１６６とが備わっている。それに加えて、鍵１６１に対して直接反力を発生し、鍵スイッチとしても機能する反力発生部材１６８ａ，１６８ｂも備わっている。このため、より大きな反力を発生することができる。また、反力発生部材１６６および反力発生部材１６６を押圧する押圧片１６７ａを、設置部材１６３の質量体通し孔１６３ｂ内に位置させているため、質量体通し孔１６３ｂの空間を有効に利用することができる。この第９変形例に係る鍵盤装置Ａ７のそれ以外の作用効果は、前述した鍵盤装置Ａ６と同様である。
In the keyboard device A7, a reaction force generating member 165 that directly generates a reaction force against the key 161 and a mass body 167 as a reaction force generating member that generates a reaction force against the key 161 pressed. A reaction force generation member 166 that generates a reaction force against the key 161 is provided. In addition, reaction force generating members 168a and 168b that directly generate a reaction force against the key 161 and function as a key switch are also provided. For this reason, a larger reaction force can be generated. Further, since the reaction force generating member 166 and the pressing piece 167a that presses the reaction force generating member 166 are positioned in the mass body through hole 163b of the installation member 163, the space of the mass body through hole 163b is effectively used. be able to. The other operations and effects of the keyboard device A7 according to the ninth modification are the same as those of the keyboard device A6 described above.
ａ１０．第１実施形態の第１０変形例
図１５は、前述した第１実施形態の第１０変形例に係る鍵盤装置Ａ８を示す。この鍵盤装置Ａ８では、鍵盤を支持する鍵盤フレーム１７２に、上方に突出した台部１７２が備わっており、後部には上方に延びる鍵支持部１７２ｃが設けられる。そして、鍵支持部１７２ｃの上端に、鍵１７１の後端部が、回動軸部１７１ａを中心として回動可能に支持される。この鍵１７１の下面にはアクチュエータ１７１ｄが形成される。
a10. Tenth Modification of First Embodiment FIG. 15 shows a keyboard device A8 according to a tenth modification of the first embodiment described above. In this keyboard device A8, a keyboard frame 172 that supports the keyboard is provided with a base portion 172 that protrudes upward, and a key support portion 172c that extends upward is provided at the rear portion. The rear end portion of the key 171 is supported at the upper end of the key support portion 172c so as to be rotatable about the rotation shaft portion 171a. An actuator 171 d is formed on the lower surface of the key 171.
鍵盤フレーム１７２には、設置部材１７３が設けられる。この設置部材１７３の中央部分と、台部１７２ｂの上部における後部側部分とには、上下に貫通する大きな質量体通し孔（図示せず）が形成され、質量体１７７は、質量体通し孔の左右両壁の上部に掛け渡された回動軸部１７３ａを中心として回動可能に取り付けられる。質量体１７７は、回動軸部１７３ａの後方に延びる後部１７７ａと、回動軸部１７３ａの前方に延びる前部１７７ｂとからなる重りで構成される。押鍵により鍵１７１が下降すると、アクチュエータ１７７ｄは前部１７７ｂを下方に押圧する。このため、鍵１７１を押鍵すると、質量体１７７は、図１５の状態で時計周り方向に回転する。
An installation member 173 is provided on the keyboard frame 172. A large mass body through-hole (not shown) penetrating vertically is formed in the central portion of the installation member 173 and the rear side portion in the upper portion of the base portion 172b, and the mass body 177 is formed of the mass body through-hole. It is attached so as to be rotatable about a rotation shaft portion 173a spanning the upper portions of the left and right walls. The mass body 177 includes a weight including a rear portion 177a extending rearward of the rotating shaft portion 173a and a front portion 177b extending forward of the rotating shaft portion 173a. When the key 171 is lowered by pressing the key, the actuator 177d presses the front portion 177b downward. For this reason, when the key 171 is depressed, the mass body 177 rotates clockwise in the state of FIG.
設置部材１７３には、鍵１７１に対向して反力発生部材１７５が設置され、質量体通し孔内に質量体１７７の後部１７７ａに対向して反力発生部材１７６が設置される。質量体通し孔内の後部上端には天井面部（図示せず）が形成され、反力発生部材１７６は、トップ部１７６ａを下方に向けて天井面部に固定される。反力発生部材１７５は、押鍵により下降する鍵１７１の下面に当接し、鍵１７１に対して反力を発生し、反力発生部材１７６は、鍵１７１の押鍵により上昇する質量体１７７の後部１７７ａに当接し、質量体１７７を介して鍵１７１に対して反力を発生する。この反力発生部材１７５，１７６は、前述した反力発生部材２５，２６と同様の構成をしており、鍵１７１の押鍵により発生する反力が同時にピークに達するように配置される。
The installation member 173 is provided with a reaction force generation member 175 opposite to the key 171, and the reaction force generation member 176 is provided opposite to the rear portion 177 a of the mass body 177 in the mass body passage hole. A ceiling surface portion (not shown) is formed at the rear upper end of the mass body through-hole, and the reaction force generating member 176 is fixed to the ceiling surface portion with the top portion 176a facing downward. The reaction force generating member 175 abuts on the lower surface of the key 171 that is lowered by pressing the key, and generates a reaction force against the key 171, and the reaction force generating member 176 is the mass body 177 that is lifted by pressing the key 171. Abutting against the rear portion 177a, a reaction force is generated against the key 171 via the mass body 177. The reaction force generation members 175 and 176 have the same configuration as the reaction force generation members 25 and 26 described above, and are arranged so that the reaction force generated by pressing the key 171 simultaneously reaches a peak.
台部１７２ｂの下方には、スイッチ基板１７８が支持片１７３ｃ，１７３ｄに挟持されて取り付けられる。スイッチ基板１７８の上面に、質量体１７７の前部１７７ｂ下面に設けたアクチュエータ１７７ｄに対向して一対の反力発生部材１７８ａ，１７８ｂが固定される。反力発生部材１７８ａ，１７８ｂは、前述した反力発生部材５４，５５と同様の構成をしており、鍵スイッチとしての機能と反力発生部材としての機能とを備える。このため、押鍵により、鍵１７１が下降すると、質量体１７７は、時計周り方向に回転し、アクチュエータ１７７ｄが、反力発生部材１７８ａ，１７８ｂを押してオン状態にする。
Below the pedestal 172b, a switch board 178 is attached by being sandwiched between support pieces 173c and 173d. A pair of reaction force generation members 178a and 178b are fixed to the upper surface of the switch substrate 178 so as to face the actuator 177d provided on the lower surface of the front portion 177b of the mass body 177. The reaction force generation members 178a and 178b have the same configuration as the reaction force generation members 54 and 55 described above, and have a function as a key switch and a function as a reaction force generation member. For this reason, when the key 171 is lowered by the key depression, the mass body 177 rotates in the clockwise direction, and the actuator 177d pushes the reaction force generating members 178a and 178b to turn them on.
この鍵盤装置Ａ８においては、鍵１７１の押鍵に対して反力を発生する反力発生部材として、鍵１７１に対して直接反力を発生する反力発生部材１７５と、質量体１７７を介して鍵１７１に対して反力を発生する反力発生部材１７６に加えて、質量体１７７を介して鍵１７１に対して反力を発生し、鍵スイッチとしても機能する反力発生部材１７８ａ，１７８ｂも備える。このため、より大きな反力を発生することができる。また、反力発生部材１７６を、設置部材１７３の質量体通し孔内に位置させているため、質量体通し孔の空間を有効に利用することができる。この第１０変形例に係る鍵盤装置Ａ８のそれ以外の作用効果は、前述した鍵盤装置Ａ７と同様である。
In this keyboard device A8, a reaction force generating member 175 that directly generates a reaction force against the key 171 and a mass body 177 as a reaction force generating member that generates a reaction force against the key 171 pressed. In addition to the reaction force generation member 176 that generates a reaction force against the key 171, reaction force generation members 178 a and 178 b that also generate a reaction force against the key 171 via the mass body 177 and also function as a key switch Prepare. For this reason, a larger reaction force can be generated. Further, since the reaction force generating member 176 is positioned in the mass body through hole of the installation member 173, the space of the mass body through hole can be used effectively. The other operations and effects of the keyboard device A8 according to the tenth modification are the same as those of the keyboard device A7 described above.
ａ１１．第１実施形態の第１１変形例
図１６は、前述した第１実施形態の第１１変形例に係る鍵盤装置Ａ９を示す。この鍵盤装置Ａ９では、静止構造体１８０の上面中央に設けられた鍵支持部材１８２の上面から上方に延びる支点ピン１８２ａを中心として鍵１８１の中央部分が回動可能に支持される。静止構造体１８０の後端には上方に延びる質量体支持部１８０ａが設けられ、質量体支持部１８０ａの上端には、質量体支持部１８０ａの上端からさらに上方斜め前方に延びる設置部材１８０ｂが設けられる。質量体支持部１８０ａの上端前部には、回動軸部１８７ａを中心として回動自在に質量体１８７が取り付けられる。
a11. Eleventh Modification of First Embodiment FIG. 16 shows a keyboard device A9 according to the eleventh modification of the first embodiment described above. In the keyboard device A9, the central portion of the key 181 is rotatably supported around a fulcrum pin 182a extending upward from the upper surface of the key support member 182 provided at the center of the upper surface of the stationary structure 180. A mass body support portion 180a extending upward is provided at the rear end of the stationary structure 180, and an installation member 180b extending further obliquely forward from the upper end of the mass body support portion 180a is provided at the upper end of the mass body support portion 180a. It is done. A mass body 187 is attached to the front end of the upper end of the mass body support portion 180a so as to be rotatable about the rotation shaft portion 187a.
この質量体１８７は、押鍵により鍵１８１の後部が上方に移動したときに、鍵１８１の後端部にピン１８７ｄが押し上げられて図１６の状態で時計周り方向に回転し、離鍵時には、その自重によって反時計周り方向に回転してピン１８７ｄが鍵１８１を時計周り方向に回転させる。また、静止構造体１８０の上面の後端近傍に、鍵１８１の後部の下降位置を規制する非押鍵時ストッパ１８１ａが設けられ、静止構造体１８０の上面の前端に、鍵１８１の前部の下降位置を規制する押鍵時ストッパ１８１ｂが設けられる。
When the rear portion of the key 181 is moved upward by the key depression, the mass body 187 is rotated clockwise in the state shown in FIG. 16 by pushing the pin 187d to the rear end portion of the key 181. The pin 187d rotates the key 181 in the clockwise direction by rotating counterclockwise by its own weight. Further, a non-key-pressing stopper 181a for restricting the lowering position of the rear portion of the key 181 is provided near the rear end of the upper surface of the stationary structure 180, and the front portion of the key 181 is disposed at the front end of the upper surface of the stationary structure 180. A key pressing stopper 181b for restricting the lowered position is provided.
静止構造体１８０の上面における鍵支持部材１８２の前方には、鍵１８１の押鍵に対して反力を発生する３つの反力発生部材１８４，１８５，１８６が後方から前方に向かって順に配置される。反力発生部材１８４，１８５，１８６は、前述した反力発生部材２５，２６と同様の構成をしており、その大きさは後方に位置する反力発生部材１８４から前方に位置する反力１８６の順に鍵１８１の回動支点からのそれぞれの距離と比例して大きくなる。そして、鍵１８１に対する反力発生部材１８４，１８５の位置関係および鍵１８１に対する反力発生部材１８５，１８６の位置関係は、それぞれ前述した第１実施形態における反力発生部材２５，２６と鍵１１との位置関係と同様になっている。
Three reaction force generating members 184, 185, and 186 that generate a reaction force against the key pressing of the key 181 are arranged in order from the rear to the front in front of the key support member 182 on the upper surface of the stationary structure 180. The The reaction force generation members 184, 185, and 186 have the same configuration as the reaction force generation members 25 and 26 described above, and the size of the reaction force generation members 184, 185, and 186 is larger than that of the reaction force generation member 184 located at the rear. In this order, the key 181 increases in proportion to the distance from the rotation fulcrum. The positional relationship between the reaction force generation members 184 and 185 with respect to the key 181 and the positional relationship between the reaction force generation members 185 and 186 with respect to the key 181 are the same as the reaction force generation members 25 and 26 and the key 11 in the first embodiment described above. This is the same as the positional relationship.
設置部材１８０ｂの下面における質量体１８７の先端側部分に対向する部分には、押鍵時の質量体１８７の回転を規制する押鍵時ストッパ１８７ｃが設けられる。また、設置部材１８０ｂの下面における後部にスイッチ基板１８８が固定され、スイッチ基板１８８の下面に、アクチュエータ１８７ｂに対向してスイッチ１８８ａが設けられる。スイッチ１８８ａは、押鍵によって回転する質量体１８７のアクチュエータ１８７ｂに押圧されてオンに作動する。
A key-pressing stopper 187c that restricts the rotation of the mass body 187 when the key is pressed is provided on a portion of the lower surface of the installation member 180b facing the tip side portion of the mass body 187. In addition, a switch substrate 188 is fixed to the rear portion of the lower surface of the installation member 180b, and a switch 188a is provided on the lower surface of the switch substrate 188 so as to face the actuator 187b. The switch 188a is turned on by being pressed by the actuator 187b of the mass body 187 rotated by the key depression.
設置部材１８０ｂの下面に、反力発生部材１８３が固定される。この反力発生部材１８３は、質量体１８７の上面に押圧されるもので、反力発生部材１８４等と同様の構成をしている。反力発生部材１８４，１８５，１８６は、鍵１８１の押鍵に対して直接鍵１８１に反力を発生し、反力発生部材１８３は、質量体１８７を介して鍵１８１に反力を発生する。また、反力発生部材１８３，１８４，１８５，１８６は、鍵１８１の押鍵により発生する反力が同時にピークに達するように配置される。
The reaction force generating member 183 is fixed to the lower surface of the installation member 180b. The reaction force generation member 183 is pressed against the upper surface of the mass body 187 and has the same configuration as the reaction force generation member 184 and the like. The reaction force generation members 184, 185, and 186 generate a reaction force directly on the key 181 with respect to the key 181 being pressed, and the reaction force generation member 183 generates a reaction force on the key 181 via the mass body 187. . The reaction force generating members 183, 184, 185, and 186 are arranged so that the reaction force generated by pressing the key 181 reaches a peak at the same time.
この鍵盤装置Ａ９においては、４つの反力発生部材１８３，１８４，１８５，１８６を設けているため、より大きな反力を発生することができる。この第１１変形例に係る鍵盤装置Ａ９のそれ以外の作用効果は、前述した鍵盤装置Ａ２と同様である。なお、鍵盤装置Ａ９においては、反力発生部材１８４，１８５と鍵１８１との位置関係および反力発生部材１８５，１８６と鍵１８１との位置関係を、第１実施形態に係る鍵盤装置Ａの反力発生部材２５，２６と鍵１１との位置関係と同じにすることに限らず、前述した第１変形例や第２変形例と同様になるように変更してもよい。
In this keyboard device A9, since four reaction force generating members 183, 184, 185, 186 are provided, a larger reaction force can be generated. The other operations and effects of the keyboard device A9 according to the eleventh modification are the same as those of the keyboard device A2 described above. In the keyboard device A9, the positional relationship between the reaction force generating members 184 and 185 and the key 181 and the positional relationship between the reaction force generating members 185 and 186 and the key 181 are the same as those of the keyboard device A according to the first embodiment. The positional relationship between the force generating members 25 and 26 and the key 11 is not limited to the same, and the force generating members 25 and 26 may be changed to be the same as those in the first and second modified examples.
ａ１２．第１実施形態の第１２変形例
図１７は、前述した第１実施形態の第１２変形例に係る鍵盤装置Ａ１０を示す。この鍵盤装置Ａ１０では、鍵盤を支持する鍵盤フレーム１９２に、フレーム後部１９２ａと、質量体支持部１９２ｂと、フレーム前部１９２ｃと、フレーム後部１９２ａが設けられる。そして、フレーム後部１９２ａの上端に、鍵１９１の後端部が、回動軸部１９１ａを中心として回動可能に支持される。この鍵１９１には、下方に向かって突出した垂下片１９１ｂが形成され、垂下片１９１ｂの下端部には、前方に突出するフック部１９１ｃが形成される。また、鍵１９１には、下方に突出する押圧部１９１ｄが形成される。
a12. Twelfth Modification of First Embodiment FIG. 17 shows a keyboard device A10 according to the twelfth modification of the first embodiment described above. In the keyboard device A10, a keyboard frame 192 that supports the keyboard is provided with a frame rear portion 192a, a mass support portion 192b, a frame front portion 192c, and a frame rear portion 192a. The rear end portion of the key 191 is supported at the upper end of the frame rear portion 192a so as to be rotatable about the rotation shaft portion 191a. The key 191 is formed with a hanging piece 191b projecting downward, and a hook part 191c projecting forward is formed at the lower end of the hanging piece 191b. The key 191 is formed with a pressing portion 191d that protrudes downward.
質量体支持部１９２ｂの上部には、質量体１９７が回動軸部１９７ａを中心として回動可能に取り付けられる。質量体１９７は、回動軸部１９７ａから、後方に延びる後部１９７ｂと、回動軸部１９７ａから、前方に延びる前部１９７ｃとで構成される。また、質量体１９７の前部１９７ｃには、鍵１９１の押圧部１９１ｄが摺動可能に当接する凹部１９７ｅが形成され、押鍵により鍵１９１が下降すると、押圧部１９１ｄは質量体１９７の前部１９７ｃを下方に押圧する。このため、鍵１９１を押鍵すると、質量体１９７は、図１７の状態で時計周り方向に回転する。
The mass body 197 is attached to the upper portion of the mass body support portion 192b so as to be rotatable about the rotation shaft portion 197a. The mass body 197 includes a rear portion 197b extending rearward from the rotation shaft portion 197a and a front portion 197c extending forward from the rotation shaft portion 197a. Further, a concave portion 197e with which the pressing portion 191d of the key 191 is slidably contacted is formed in the front portion 197c of the mass body 197, and when the key 191 is lowered by the key pressing, the pressing portion 191d becomes the front portion of the mass body 197. 197c is pressed downward. For this reason, when the key 191 is depressed, the mass body 197 rotates in the clockwise direction in the state of FIG.
フレーム前部１９２ｃの上部には、鍵１９１の前部に対向して配置され、鍵１９１の下降位置を規制する押鍵時ストッパ１９４と、垂下片１９１ｂのフック部１９１ｃの上面に対向して配置され、鍵１９１の上昇位置を規制する非押鍵時ストッパ１９４ａとが設けられる。このため、鍵１９１は、フック部１９１ｃが非押鍵時ストッパ１９４ａに当接する非押鍵時位置と、鍵１９１の下面が押鍵時ストッパ１９４に当接する押鍵時位置との間で上下方向に回動できる。
An upper part of the frame front part 192c is arranged to face the front part of the key 191 and is arranged to face the upper surface of the hooking part 191c of the hanging piece 191b and a key-stop stopper 194 for restricting the lowered position of the key 191. In addition, there is provided a non-key-pressing stopper 194a that regulates the raised position of the key 191. For this reason, the key 191 is vertically moved between a non-key-pressing position where the hook portion 191c contacts the non-key-pressing stopper 194a and a key-pressing position where the lower surface of the key 191 contacts the key-pressing stopper 194. Can be rotated.
フレーム後部１９２ａには、質量体１９７の後部１９７ｂに対向して配置され、質量体１９７の後部１９７ｂの下降位置を規制する非押鍵時ストッパ１９４ｂが設けられるとともに、質量体１９７の後部１９７ｂの後端上面に対向して配置され、質量体１９７の後部１９７ｂの上昇位置を規制する押鍵時ストッパ１９４ｃが設けられる。このため、質量体１９７の後部１９７ｂは、後部１９７ｂが非押鍵時ストッパ１９４ｂに当接する非押鍵時位置と、後部１９７ｂが押鍵時ストッパ１９４ｃに当接する押鍵時位置との間で上下方向に回動できる。
The frame rear portion 192a is disposed to face the rear portion 197b of the mass body 197, and is provided with a non-key-pressing stopper 194b that restricts the lowering position of the rear portion 197b of the mass body 197, and the rear portion 197b of the mass body 197. A key-pressing stopper 194c that is disposed to face the upper end surface and regulates the rising position of the rear portion 197b of the mass body 197 is provided. Therefore, the rear portion 197b of the mass body 197 moves up and down between a non-key-pressing position where the rear portion 197b contacts the non-key-pressing stopper 194b and a key-pressing position where the rear portion 197b contacts the key-pressing stopper 194c. Can rotate in the direction.
フレーム後部１９２ａの上端前部からは前方に突出する前部取付板１９２ｄが形成され、前部取付板１９２ｄの上面に、鍵１９１に対向して反力発生部材１９５が設置され、前部取付板１９２ｄの下面に、質量体１９７の後部１９７ｂに対向して反力発生部材１９６が設置される。この反力発生部材１９６は、トップ部１９６ａを下方に向けて前部取付板１９３ｂに固定される。反力発生部材１９５は、押鍵により下降する鍵１９１の下面に当接して鍵１９１に対して反力を発生し、反力発生部材１９６は、鍵１９１の押鍵により上昇する質量体１９７の後部１９７ｂに当接して、質量体１９７を介して鍵１９１に対して反力を発生する。この反力発生部材１９５，１９６は、前述した反力発生部材２５，２６と同様の構成をしており、鍵１９１の押鍵により発生する反力が同時にピークに達するように配置される。
A front mounting plate 192d that protrudes forward is formed from the front upper end of the frame rear portion 192a, and a reaction force generating member 195 is installed on the upper surface of the front mounting plate 192d so as to face the key 191. A reaction force generation member 196 is installed on the lower surface of 192d so as to face the rear portion 197b of the mass body 197. The reaction force generating member 196 is fixed to the front mounting plate 193b with the top portion 196a facing downward. The reaction force generating member 195 abuts on the lower surface of the key 191 that is lowered by pressing the key 191 to generate a reaction force against the key 191, and the reaction force generating member 196 is the mass of the mass body 197 that is lifted by pressing the key 191. Abutting on the rear portion 197b, a reaction force is generated against the key 191 through the mass body 197. The reaction force generation members 195 and 196 have the same configuration as the reaction force generation members 25 and 26 described above, and are arranged so that the reaction force generated by pressing the key 191 simultaneously reaches a peak.
質量体支持部１９２ｂの上部前端には、スイッチ基板１９８が取り付けられ、スイッチ基板１９８の上面に、質量体の前部１９７ｃの下面に形成されたアクチュエータ１９７ｆに対向して一対の反力発生部材１９８ａ，１９８ｂが固定されている。反力発生部材１９８ａ，１９８ｂは、前述した反力発生部材５４，５５と同様の構成をしており、鍵スイッチとしての機能と反力発生部材としての機能とを備える。このため、押鍵により、鍵１９１が下降すると、質量体１９７が時計周り方向に回転して前部１９７ｃが下降し、アクチュエータ１９７ｆが、反力発生部材１９８ａ，１９８ｂを押してオン状態にする。
A switch board 198 is attached to the upper front end of the mass support section 192b, and a pair of reaction force generation members 198a are provided on the upper surface of the switch board 198 so as to face the actuator 197f formed on the lower surface of the front section 197c of the mass body. , 198b are fixed. The reaction force generation members 198a and 198b have the same configuration as the reaction force generation members 54 and 55 described above, and have a function as a key switch and a function as a reaction force generation member. For this reason, when the key 191 is lowered by the key depression, the mass body 197 rotates in the clockwise direction, the front portion 197c is lowered, and the actuator 197f pushes the reaction force generating members 198a and 198b to turn on.
この鍵盤装置Ａ１０においては、鍵支持部１９３の前部上端に、前方に突出する前部取付板１９３ｂを設けて、前部取付板１９３ｂの上面に反力発生部材１９５を設置し、前部取付板１９３ｂの下面に反力発生部材１９６を設置している。このため、反力発生部材を取り付けるためのスペースを広くできる。鍵盤装置Ａ１０においては、２つの反力発生部材１９５，１９６の他に、さらに他の反力発生部材を設置できる。この第１２変形例に係る鍵盤装置Ａ１０のそれ以外の作用効果は、前述した鍵盤装置Ａ７と同様である。
In this keyboard apparatus A10, a front mounting plate 193b protruding forward is provided at the upper front end of the key support portion 193, and a reaction force generating member 195 is installed on the upper surface of the front mounting plate 193b. A reaction force generating member 196 is installed on the lower surface of the plate 193b. For this reason, the space for attaching the reaction force generating member can be widened. In the keyboard device A10, in addition to the two reaction force generation members 195 and 196, another reaction force generation member can be installed. The other operations and effects of the keyboard device A10 according to the twelfth modification are the same as those of the keyboard device A7 described above.
ｂ．第２実施形態
図１８は、本発明の第２実施形態に係るペダル装置Ｂを示す。このペダル装置Ｂは、本発明に係る操作子装置を構成する。このペダル装置Ｂは、電子ピアノ（図示せず）に組み込まれて、足で踏み込み操作される３本のペダル（ダンパーペダル、ソステヌートペダル、ソフトペダル）のうちのダンパーペダルに相当する。ペダル装置Ｂは、電子ピアノの本体の中央下部に固定されたフレーム９０と、フレーム９０に対して回動可能に組み付けられたペダル９２と、フレーム９０の下面から前面（図１８の左側が前方で右側が後方）にかけての部分に組み付けられてペダル９２に反力を付与する反力付与部９６とを備える。
b. Second Embodiment FIG. 18 shows a pedal device B according to a second embodiment of the present invention. The pedal device B constitutes an operator device according to the present invention. The pedal device B corresponds to a damper pedal among three pedals (a damper pedal, a sostenuto pedal, and a soft pedal) that are incorporated in an electronic piano (not shown) and are operated with a foot. The pedal device B includes a frame 90 fixed to the center lower part of the main body of the electronic piano, a pedal 92 assembled to be rotatable with respect to the frame 90, and a front surface (a left side in FIG. And a reaction force applying unit 96 that applies a reaction force to the pedal 92 by being assembled to a portion extending from the right side to the rear side.
フレーム９０は、底部９０ａと、前壁９０ｂと、後壁９０ｃを有し、前壁９０ｂの上端から上壁９０ｄが延び、前壁９０ｂの開口の下縁部から突出片９０ｅが僅かに傾斜して延びている。そして、突出片９０ｅの上面に、衝撃緩衝材からなる下限ストッパ９１が設置される。ペダル９２は、断面形状がコ字状に形成された前後に長い部材からなり、その上面部の後端近傍には上方に突出した突出片９２ｄが形成され、ペダル９２の上面部の中央よりも少し後部側の部分には、上方に突出する上限ストッパ９２ｅが形成される。
The frame 90 has a bottom portion 90a, a front wall 90b, and a rear wall 90c. The upper wall 90d extends from the upper end of the front wall 90b, and the protruding piece 90e is slightly inclined from the lower edge of the opening of the front wall 90b. It extends. And the lower limit stopper 91 which consists of an impact buffer material is installed in the upper surface of the protrusion piece 90e. The pedal 92 is formed of a member that is long in the front and rear and formed in a U-shaped cross section, and a protruding piece 92d that protrudes upward is formed in the vicinity of the rear end of the upper surface portion of the pedal 92. An upper limit stopper 92e that protrudes upward is formed in a slightly rear portion.
ペダル９２は、後部をフレーム９０の前方から前壁９０ｂの開口と、後壁９０ｃの開口とに通し、突出片９２ｄを後壁９０ｃの内面に当接させてフレーム９０に組み付けられる。ペダル９２は、突出片９２ｄと後壁９０ｃとの接触部を支点として上下に揺動可能であり、上限ストッパ９２ｅが上壁９０ｄに当接する位置と、ペダル９２の下部が下限ストッパ９１に当接しさらに圧縮する位置との間で上下に移動できる。
The pedal 92 is assembled to the frame 90 from the front of the frame 90 through the opening of the front wall 90b and the opening of the rear wall 90c, with the protruding piece 92d abutting against the inner surface of the rear wall 90c. The pedal 92 can swing up and down with a contact portion between the projecting piece 92d and the rear wall 90c as a fulcrum. The position where the upper limit stopper 92e contacts the upper wall 90d and the lower portion of the pedal 92 contact the lower limit stopper 91. Furthermore, it can move up and down between the positions to be compressed.
フレーム９０内の前部における底部９０ａの低い部分とペダル９２との間には、コイルバネ９３が設置される。このコイルバネ９３は、軸方向に圧縮されることで弾発力を発生するもので、ペダル９２を上方に付勢する。また、フレーム９０内の後部における底部９０ａの高い部分の上面には、上面にセンサ９４が取り付けられた基板９４ａが取り付けられる。このセンサ９４は、ペダル９２の踏み込み量（ストローク）を検出し、その検出値は、電子ピアノが発音する楽音にダンパーペダル効果を付与するために用いられる。そして、底部９０ａの前側部分には、アジャスタ９５が取り付けられ、ペダル９２の高さを調節可能にしてフレーム９０に取り付けられる。
A coil spring 93 is installed between the lower portion of the bottom 90 a in the front portion of the frame 90 and the pedal 92. The coil spring 93 generates an elastic force by being compressed in the axial direction, and urges the pedal 92 upward. A substrate 94a having a sensor 94 attached to the upper surface is attached to the upper surface of the portion of the rear portion of the frame 90 where the bottom 90a is high. This sensor 94 detects the amount of depression (stroke) of the pedal 92, and the detected value is used to give a damper pedal effect to the musical sound produced by the electronic piano. An adjuster 95 is attached to the front portion of the bottom 90a, and the height of the pedal 92 is adjustable and attached to the frame 90.
反力付与部９６は、フレーム９０に取り付けられた支持部９７と、支持部９７に支持された反力発生部材９８，９９とで構成される。支持部９７は、フレーム９０の底部９０ａの前部側部分に固定された平面板状の取付部９７ａと、取付部９７ａの前端から上面を高くして前方に延びる支持台９７ｂと、支持台９７ｂの上面に設けられた平板状の載置部９７ｃとを備える。取付部９７ａは、ネジ９６ｂを取付部９７ａのネジ挿通穴と、スペーサ９６ａに通し、底部９０ａのネジ穴に螺合させることにより、底部９０ａに固定される。
The reaction force applying unit 96 includes a support unit 97 attached to the frame 90 and reaction force generating members 98 and 99 supported by the support unit 97. The support portion 97 includes a flat plate-like attachment portion 97a fixed to the front portion of the bottom 90a of the frame 90, a support base 97b extending upward from the front end of the attachment portion 97a, and a support base 97b. And a flat plate-like placement portion 97c provided on the upper surface of the plate. The attachment portion 97a is fixed to the bottom portion 90a by passing the screw 96b through the screw insertion hole of the attachment portion 97a and the spacer 96a and screwing it into the screw hole of the bottom portion 90a.
支持台９７ｂは、前壁９０ｂの前面下部における左右方向の中央部分から前方に延びる台状に形成され、その上面は、後部よりも前部が低くなるように傾斜している。この載置部９７ｃは、下限ストッパ９１と略同じ高さに位置し、載置部９７ｃと下限ストッパ９１とは略平行となる。
The support base 97b is formed in a trapezoidal shape extending forward from the central portion in the left-right direction at the lower front portion of the front wall 90b, and the upper surface thereof is inclined so that the front portion is lower than the rear portion. The placement portion 97c is positioned at substantially the same height as the lower limit stopper 91, and the placement portion 97c and the lower limit stopper 91 are substantially parallel.
反力発生部材９８，９９は、前述した反力発生部材２５，２６よりも大きさは大きいが、形状は反力発生部材２５，２６と同じに形成される。この反力発生部材９８，９９と、突出片９２ｄと後壁９０ｃとの接触部を支点として揺動するペダル９２との位置関係は、鍵１１と反力発生部材２５，２６との位置関係と同様になる。この場合、反力発生部材９８は、反力発生部材９９よりも少し大きい。このため、ペダル９２から押圧されたときに、ペダル９２に対して発生する反力発生部材９８，９９の反力は、同時にピークに達する。
The reaction force generation members 98 and 99 are larger in size than the reaction force generation members 25 and 26 described above, but are formed in the same shape as the reaction force generation members 25 and 26. The positional relationship between the reaction force generating members 98 and 99 and the pedal 92 that swings around the contact portion between the projecting piece 92d and the rear wall 90c is the positional relationship between the key 11 and the reaction force generating members 25 and 26. It will be the same. In this case, the reaction force generation member 98 is slightly larger than the reaction force generation member 99. For this reason, when the pedal 92 is pressed, the reaction force of the reaction force generating members 98 and 99 generated against the pedal 92 simultaneously reaches a peak.
［第２実施形態に係るペダル装置Ｂの動作］
ペダル９２を踏み込み操作しない状態では、コイルバネ９３によってペダル９２は上方に付勢されて、図１８の状態となる。この状態で、ペダル９２の上面部の前部に足を載せて踏み込むと、ペダル９２はコイルバネ９３の弾性力に抗して、突出片９２ｄと後壁９０ｃとの接触部を支点として、図１８の状態で反時計周り方向に回転する。そして、ペダル９２が所定の深さまで踏み込まれると、ペダル９２の内部下面が反力発生部材９８，９９の上端に当接して、反力発生部材９８，９９を圧縮し始める。これによって、反力発生部材９８，９９は、ペダル９２に対して反力を発生する。
[Operation of Pedal Device B According to Second Embodiment]
In a state in which the pedal 92 is not depressed, the pedal 92 is urged upward by the coil spring 93, resulting in the state shown in FIG. In this state, when a foot is placed on the front portion of the upper surface portion of the pedal 92 and stepped on, the pedal 92 resists the elastic force of the coil spring 93 and the contact portion between the protruding piece 92d and the rear wall 90c serves as a fulcrum. Rotate counterclockwise in the state of. When the pedal 92 is depressed to a predetermined depth, the inner lower surface of the pedal 92 comes into contact with the upper ends of the reaction force generation members 98 and 99 and starts to compress the reaction force generation members 98 and 99. As a result, the reaction force generation members 98 and 99 generate a reaction force against the pedal 92.
踏込量が増加すると、反力発生部材９８，９９が発生する反力は徐々に大きくなっていき、その反力は同時にピークに達する。その後、反力発生部材９８，９９が座屈するようにして屈曲し反力は減少していく。さらに踏込量が増加すると、ペダル９２の下部が下限ストッパ９１に当接してペダル９２はそれ以上回転できなくなり、反力発生部材９８，９９もそれ以上圧縮されなくなる。その間、ペダル９２の踏込量は、センサ９４によって検出される。
As the amount of depression increases, the reaction force generated by the reaction force generating members 98 and 99 gradually increases, and the reaction force simultaneously reaches a peak. Thereafter, the reaction force generating members 98 and 99 are bent so as to buckle and the reaction force decreases. When the depression amount further increases, the lower portion of the pedal 92 abuts against the lower limit stopper 91 and the pedal 92 can no longer rotate, and the reaction force generating members 98 and 99 are no longer compressed. Meanwhile, the depression amount of the pedal 92 is detected by the sensor 94.
ペダル９２から足を離すと、ペダル９２は、コイルバネ９３と反力発生部材９８，９９との復元力によって上方に付勢され、図１８に示した元の状態に戻る。このような操作は、電子ピアノが演奏される間繰り返し行われる。ここでは、ペダル装置Ｂをダンパーペダルとしているが、ソステヌートペダルやソフトペダルもペダル装置Ｂと同様の構成をしており、ソステヌートペダルやソフトペダルの操作も同様に行われる。そして、演奏の間、演奏者には、アコースティックピアノのダンパーペダル等を操作したときのような質量感が得られる。
When the foot is released from the pedal 92, the pedal 92 is biased upward by the restoring force of the coil spring 93 and the reaction force generating members 98 and 99, and returns to the original state shown in FIG. Such an operation is repeated while the electronic piano is played. Here, although the pedal device B is a damper pedal, the sostenuto pedal and the soft pedal have the same configuration as the pedal device B, and the operation of the sostenuto pedal and the soft pedal is performed in the same manner. During the performance, the performer can feel a sense of mass as when operating a damper pedal or the like of an acoustic piano.
このように、本実施形態に係るペダル装置Ｂでは、２個の反力発生部材９８，９９を設けることで、反力の大きさを十分に大きくすることができ、また、２個の反力発生部材９８，９９が発生する反力が同時にピークに達することで、良好な反力の変化を得ることができる。なお、本実施形態に係るペダル装置Ｂでは、反力発生部材９８，９９を少し小形にして前後でなく左右に設置してもよい。この場合、支持部９７も前後でなく左右に長いもので構成する。
Thus, in the pedal device B according to the present embodiment, by providing the two reaction force generation members 98 and 99, the magnitude of the reaction force can be sufficiently increased, and the two reaction forces can be increased. Since the reaction force generated by the generation members 98 and 99 reaches the peak at the same time, a favorable change in the reaction force can be obtained. In the pedal device B according to the present embodiment, the reaction force generating members 98 and 99 may be slightly small and installed on the left and right instead of front and rear. In this case, the support portion 97 is also configured to be long from side to side, not from front to back.
ｃ．第３実施形態
図１９は、本発明の第３実施形態に係る操作子装置Ｃの要部を示す。この操作子装置Ｃは、電子楽器（図示せず）の鍵盤の近傍に組み込まれて、手で操作されることにより電子楽器が発生する楽音を制御するものである。操作子装置Ｃは、電子楽器の本体上部に固定されたフレーム１００と、フレーム１００の上面に組み付けられた操作子１０１と、復帰バネ１０３と、プリント基板１０４と、一対のセンサ１０４ａ，１０４ｂと、本発明に係る反力発生部材を構成する一対のクリックラバー１０５，１０６とを備える。
c. Third Embodiment FIG. 19 shows a main part of an operator device C according to a third embodiment of the present invention. The operation device C is incorporated in the vicinity of a keyboard of an electronic musical instrument (not shown), and controls musical sounds generated by the electronic musical instrument when operated by hand. The operation device C includes a frame 100 fixed to the upper part of the main body of the electronic musical instrument, an operation device 101 assembled on the upper surface of the frame 100, a return spring 103, a printed circuit board 104, a pair of sensors 104a and 104b, A pair of click rubbers 105 and 106 constituting a reaction force generating member according to the present invention is provided.
フレーム１００は、上面部１００ａの上面における後端近傍に、操作子１０１を支持するための支持部１０７が設けられ、支持部１０７の上端部に設けられた軸部１０７ａに操作子１０１の後端部は回動可能に支持され、操作子１０１は、軸部１０７ａを中心として上下に回動できる。
The frame 100 is provided with a support portion 107 for supporting the operation element 101 in the vicinity of the rear end on the upper surface of the upper surface portion 100 a, and the rear end of the operation element 101 on the shaft portion 107 a provided at the upper end portion of the support portion 107 The operation part 101 can be turned up and down around the shaft part 107a.
操作子１０１は、前後に長い四角棒状に形成された操作子本体１０１ａと、紡錘形の操作部１０１ｂと、操作子本体１０１ａの前端部から下方に延びたのちに屈曲して後方に突出する垂下片１０１ｃとで構成される。また、操作子本体１０１ａの下面における前部側には、一対の凹部１０２ａ，１０２ｂが前後に並んで形成され、その後方にバネ位置決め凹部１０２ｃが形成される。凹部１０２ａ，１０２ｂはともに四角形の穴で構成されており、前後方向の開口が奥側よりも僅かに狭い。凹部１０２ａ，１０２ｂは同じ形状に形成されるが、後方に位置する凹部１０２ａよりも前方に位置する凹部１０２ｂの方が僅かに小さく形成される。
The operating element 101 includes an operating element main body 101a formed in the shape of a long rectangular bar in the front and rear, a spindle-shaped operating part 101b, and a hanging piece that extends downward from the front end of the operating element main body 101a and then bends and protrudes backward. 101c. A pair of recesses 102a and 102b are formed side by side on the front side of the lower surface of the operating element main body 101a, and a spring positioning recess 102c is formed behind the pair. The recesses 102a and 102b are both formed by rectangular holes, and the opening in the front-rear direction is slightly narrower than the back side. The recesses 102a and 102b are formed in the same shape, but the recess 102b positioned in the front is formed slightly smaller than the recess 102a positioned in the rear.
操作子１０１が回動する際に、垂下片１０１ｃの下部は、フレーム１００の前壁１００ｂに形成された開口内で移動する。上面部１００ａの上面と、バネ位置決め凹部１０２ｃの天井面との間には、コイルバネ１０３が設置され、このコイルバネ１０３によって操作子１０１は、上方に付勢される。上面部１００ａの下面における垂下片１０１ｃの下端部の上面に対向する部分には、衝撃緩衝材からなる上限ストッパ１０３ａが設置され、この上限ストッパ１０３ａによって操作子１０１の上昇位置が規制される。
When the operation element 101 rotates, the lower part of the drooping piece 101 c moves within an opening formed in the front wall 100 b of the frame 100. A coil spring 103 is installed between the upper surface of the upper surface portion 100a and the ceiling surface of the spring positioning recess 102c, and the operating element 101 is urged upward by the coil spring 103. An upper limit stopper 103a made of an impact cushioning material is installed on a portion of the lower surface of the upper surface portion 100a facing the upper surface of the lower end portion of the hanging piece 101c, and the upper position of the operating element 101 is regulated by the upper limit stopper 103a.
プリント基板１０４は、上面部１００ａの前部側に形成された開口の下方に位置して、上面部１００ａにねじ１０４ｃで固定される。プリント基板１０４の上面における凹部１０２ａ，１０２ｂに対向する部分には、センサ１０４ａ，１０４ｂが並んで配置され、センサ１０４ａの上面にクリックラバー１０５が形成され、センサ１０４ｂの上面にクリックラバー１０６が形成される。クリックラバー１０５は、凹部１０２ａに対向し、クリックラバー１０６は、凹部１０２ｂに対向し、クリックラバー１０５，１０６は同じ形状に形成される。クリックラバー１０５，１０６の大きさの比率は、凹部１０２ａ，１０２ｂの大きさの比率と同じになっている。
The printed circuit board 104 is positioned below an opening formed on the front side of the upper surface portion 100a, and is fixed to the upper surface portion 100a with screws 104c. Sensors 104a and 104b are arranged side by side at portions of the upper surface of the printed board 104 facing the recesses 102a and 102b, a click rubber 105 is formed on the upper surface of the sensor 104a, and a click rubber 106 is formed on the upper surface of the sensor 104b. The The click rubber 105 faces the recess 102a, the click rubber 106 faces the recess 102b, and the click rubbers 105, 106 are formed in the same shape. The ratio of the size of the click rubbers 105 and 106 is the same as the ratio of the sizes of the recesses 102a and 102b.
クリックラバー１０５，１０６は、操作子スイッチ１０４ａ，１０４ｂのそれぞれの上面から上方に延びる垂直片１０５ａ，１０６ａと、垂直片１０５ａ，１０６ａの上端で前後に延びる水平片１０５ｂ，１０６ｂとからなるＴ字形に形成される。水平片１０５ｂ，１０６ｂの上面の面積は、凹部１０２ａ，１０２ｂの開口部の面積よりも大きく凹部１０２ａ，１０２ｂの奥側の空間部の断面積よりも僅かに小さく、押し込まれると、縁部１０２ｃ，１０２ｄが撓んで凹部１０２ａ，１０２ｂ内に入ることができる。
The click rubbers 105 and 106 are formed in a T-shape including vertical pieces 105a and 106a extending upward from the upper surfaces of the operator switches 104a and 104b and horizontal pieces 105b and 106b extending forward and backward at the upper ends of the vertical pieces 105a and 106a. It is formed. The area of the upper surface of the horizontal pieces 105b and 106b is larger than the area of the opening of the recesses 102a and 102b and slightly smaller than the cross-sectional area of the space portion on the back side of the recesses 102a and 102b. 102d can bend and enter the recesses 102a and 102b.
操作子１０１が押圧操作されたときに、水平片１０５ｂ，１０６ｂはそれぞれ対応する凹部１０２ａ，１０２ｂの開口縁部１０２ｃ，１０２ｄに押し付けられて、撓みながら操作子１０１に対して反力を発生する。その水平片１０５ｂ，１０６ｂが発生する反力は撓み量に応じて徐々に大きくなったのちにピークに達し、その後、水平片１０５ｂ，１０６ｂがそれぞれ対応する凹部１０２ａ，１０２ｂの開口縁部１０２ａ，１０２ｂを越えると、反力は減少していき、そののちに無くなる。また、水平片１０５ｂ，１０６ｂが発生する反力は同時にピークに達するように、水平片１０５ｂ，１０６ｂの大きさ、および操作子１０１との位置関係が設定される。
When the operating element 101 is pressed, the horizontal pieces 105b and 106b are pressed against the opening edges 102c and 102d of the corresponding recesses 102a and 102b, respectively, and generate a reaction force against the operating element 101 while being bent. The reaction force generated by the horizontal pieces 105b and 106b reaches a peak after gradually increasing in accordance with the amount of deflection, and then the opening edges 102a and 102b of the recesses 102a and 102b corresponding to the horizontal pieces 105b and 106b, respectively. Beyond, the reaction force decreases and then disappears. Further, the size of the horizontal pieces 105b and 106b and the positional relationship with the operation element 101 are set so that the reaction force generated by the horizontal pieces 105b and 106b simultaneously reaches a peak.
操作子１０１の押圧操作を停止すると、コイルバネ１０３によって操作子１０１は、上方に付勢される。このとき、操作子１０１の上昇に対して、開口縁部１０２ｃ，１０２ｄと水平片１０５ｂ，１０６ｂが反力を発生するが、この反力はコイルバネ１０３の復帰力が大きいため、操作子１０１は無理なく上昇できる。なお、操作子装置Ｃにおいては、水平片１０５ｂ，１０６ｂで本発明に係る押圧により弾性変形する部分が構成される。
When the pressing operation of the operating element 101 is stopped, the operating element 101 is biased upward by the coil spring 103. At this time, the opening edge portions 102c and 102d and the horizontal pieces 105b and 106b generate a reaction force against the ascent of the operation element 101. However, since this reaction force has a large restoring force of the coil spring 103, the operation element 101 is impossible. It can rise without. In the operation device C, the horizontal pieces 105b and 106b are configured to be elastically deformed by pressing according to the present invention.
［第３実施形態に係る操作子装置Ｃの動作］
操作子１０１を押圧操作しない状態では、コイルバネ１０３によって操作子１０１は上方に付勢されて、図１９の状態となる。このとき、垂下片１０１ｃの下端部の上面は、上限ストッパ１０３ａに当接する。この状態で、操作部１０１ｂを手で押さえて操作子１０１を下方に押圧すると、操作子１０１はコイルバネ１０３の弾性力に抗して、支持部１００ｄの軸部１００ｅを支点として、図１９の状態で反時計周り方向に回転する。
[Operation of Operating Device C According to Third Embodiment]
In a state where the operating element 101 is not pressed, the operating element 101 is urged upward by the coil spring 103 and the state shown in FIG. 19 is obtained. At this time, the upper surface of the lower end portion of the hanging piece 101c comes into contact with the upper limit stopper 103a. In this state, when the operation unit 101b is pressed down by hand and the operation unit 101 is pressed downward, the operation unit 101 resists the elastic force of the coil spring 103, and the shaft unit 100e of the support unit 100d serves as a fulcrum. To rotate counterclockwise.
操作子１０１の回転角が所定の角度になると、操作子１０１の凹部の開口縁部１０２ｃ，１０２ｄが、それぞれ対向するクリックラバー１０５，１０６の水平片１０５ｂ，１０６ｂに当接して、水平片１０５ｂ，１０６ｂを押圧し始める。これによって、水平片１０５ｂ，１０６ｂの両側部分は、下方に撓みながら操作子１０１に対して反力を発生する。さらに、操作子１０１の回転角が増加すると、水平片１０５ｂ，１０６ｂが発生する反力は徐々に大きくなり、その反力は同時にピークに達する。そして、撓んだ水平片１０５ｂ，１０６ｂが凹部の開口縁部１０２ｃ，１０２ｄを通過して凹部１０２ａ，１０２ｂの内部に到達すると反力は減少しながらなくなる。
When the rotation angle of the operation element 101 reaches a predetermined angle, the opening edge portions 102c and 102d of the recesses of the operation element 101 come into contact with the horizontal pieces 105b and 106b of the opposing click rubbers 105 and 106, respectively. Begin to press 106b. Accordingly, both side portions of the horizontal pieces 105b and 106b generate a reaction force against the operation element 101 while being bent downward. Furthermore, when the rotation angle of the operation element 101 increases, the reaction force generated by the horizontal pieces 105b and 106b gradually increases, and the reaction force simultaneously reaches a peak. When the bent horizontal pieces 105b and 106b pass through the opening edge portions 102c and 102d of the recesses and reach the insides of the recesses 102a and 102b, the reaction force is not reduced.
その間、クリックラバー１０５，１０６の垂直片１０５ａ，１０６ａが、それぞれ対応するセンサ１０４ａ，１０４ｂを押圧する。センサ１０４ａ，１０４ｂは、操作子１０１のストロークを検出し、この検出値は、例えば、トレモロやビブラート等の制御に用いられ、これによって楽音が制御される。そして、操作子１０１の押圧を停止すると、操作子１０１は、コイルバネ１０３の復元力によって上方に付勢され、図１９に示した元の状態に戻る。このような操作は、電子楽器が演奏される間繰り返し行われ、演奏者には適度な質量感やクリック感が得られる。
Meanwhile, the vertical pieces 105a and 106a of the click rubbers 105 and 106 press the corresponding sensors 104a and 104b, respectively. The sensors 104a and 104b detect the stroke of the operation element 101, and the detected value is used for controlling, for example, tremolo and vibrato, thereby controlling the musical sound. When the pressing of the operating element 101 is stopped, the operating element 101 is urged upward by the restoring force of the coil spring 103 and returns to the original state shown in FIG. Such an operation is repeatedly performed while the electronic musical instrument is played, and the player can obtain an appropriate mass and click feeling.
このように、本実施形態に係る操作子装置Ｃでは、操作子１０１に形成した凹部１０２ａ，１０２ｂと、クリックラバー１０５，１０６とで反力付与部を構成しているが、これによっても、反力の大きさを十分に大きくすることができ、また、２個のクリックラバー１０５，１０６が発生する反力が同時にピークに達することで、良好なクリック感を得ることができる。なお、本実施形態に係る操作子装置Ｃにおいては、クリックラバー１０５，１０６の一方に代えて、前述した反力発生部材２５，２６等を用いてもよい。
As described above, in the operating device C according to the present embodiment, the recesses 102a and 102b formed in the operating device 101 and the click rubbers 105 and 106 constitute a reaction force applying unit. The magnitude of the force can be made sufficiently large, and the reaction force generated by the two click rubbers 105 and 106 reaches a peak at the same time, so that a good click feeling can be obtained. In the operation device C according to the present embodiment, the reaction force generating members 25 and 26 described above may be used instead of one of the click rubbers 105 and 106.
ｃ１．第３実施形態の変形例
図２０は、前述した第３実施形態の変形例に係る操作子装置Ｃ１の要部を示す。この操作子装置Ｃ１では、操作子１１１の操作子本体１１１ａの下面に、一対の凹部は形成されてなく、操作子本体１１１ａの下面における操作部１１１ｂの下方位置に対応する部分から下方に向かって垂下片１１１ｃを有する。この垂下片１１１ｃは、フレーム１１０の上面部１１０ａに形成された開口（図示せず）を通って下方に延びて、その下部は左右に二又に分岐されその間に軸部１１１ｄが掛け渡される。
c1. Modified Example of Third Embodiment FIG. 20 shows a main part of an operator device C1 according to a modified example of the third embodiment described above. In this operating element device C1, a pair of recesses are not formed on the lower surface of the operating element main body 111a of the operating element 111, and downward from a portion corresponding to the lower position of the operating part 111b on the lower surface of the operating element main body 111a. It has a hanging piece 111c. The hanging piece 111c extends downward through an opening (not shown) formed in the upper surface portion 110a of the frame 110, and a lower portion thereof is bifurcated into right and left, and a shaft portion 111d is spanned therebetween.
上面部１１０ａの下面に、下方に向かって延びる支持部１１２が取り付けられ、その下端に軸方向を左右に向けた支軸１１２ａが形成される。支軸１１２ａには前後方向に延びる棒状の連動部材１１３が回動自在に組み付けられる。この連動部材１１３は、支軸１１２ａに回動自在に組み付けられた回動中心部１１３ａと、回動中心部１１３ａから前方に延びる係合部１１３ｂと、回動中心部１１３ａから後方に延びる質量部１１３ｃと、質量部１１３ｃの自由端側に設けたおもり１１３ｄで構成される、係合部１１３ｂの前部は、上下に二又に分岐されその間に軸部１１１ｄが移動可能に係合する。このため、垂下片１１１ｃが上下移動するとその移動に連動して、連動部材１１３は支軸１１２ａを中心に回転する。このとき、質量部１１３ｃに設けたおもり１１３ｄの重さで反力を得る。
A support portion 112 extending downward is attached to the lower surface of the upper surface portion 110a, and a support shaft 112a having an axial direction directed to the left and right is formed at the lower end thereof. A rod-like interlocking member 113 extending in the front-rear direction is rotatably attached to the support shaft 112a. The interlocking member 113 includes a rotation center portion 113a rotatably assembled to the support shaft 112a, an engagement portion 113b extending forward from the rotation center portion 113a, and a mass portion extending rearward from the rotation center portion 113a. The front portion of the engaging portion 113b, which is composed of 113c and a weight 113d provided on the free end side of the mass portion 113c, is bifurcated vertically, and the shaft portion 111d is movably engaged therebetween. For this reason, when the drooping piece 111c moves up and down, the interlocking member 113 rotates around the support shaft 112a in conjunction with the movement. At this time, a reaction force is obtained by the weight of the weight 113d provided on the mass portion 113c.
質量部１１３ｃには、ねじを備えたアジャスタ１１４が取り付けられ、アジャスタ１１４の上端に押圧部１１４ａが取り付けられる。この押圧部１１４ａは、アジャスタ１１４を回転操作することにより、上下方向の位置を変更することができる。上面部１１０ａの上面における支持部１１２の上方に位置する部分に反力発生部材１１５が設置され、上面部１１０ａの下面における押圧部１１４ａに対向する部分に反力発生部材１１６が設置される。この反力発生部材１１５，１１６は、前述した反力発生部材２５，２６等と大きさは多少異なるが、形状は反力発生部材２５，２６等と同じである。この操作子装置Ｃ１のそれ以外の部分の構成は、前述した操作子装置Ｃと同じである。したがって、同一部分に同一符号を記している。
An adjuster 114 having a screw is attached to the mass portion 113c, and a pressing portion 114a is attached to the upper end of the adjuster 114. The pressing portion 114 a can change the position in the vertical direction by rotating the adjuster 114. A reaction force generating member 115 is installed on a portion of the upper surface of the upper surface portion 110a located above the support portion 112, and a reaction force generating member 116 is installed on a portion of the lower surface of the upper surface portion 110a facing the pressing portion 114a. The reaction force generating members 115 and 116 are slightly different in size from the above-described reaction force generating members 25 and 26, but the shape is the same as the reaction force generating members 25 and 26. The rest of the configuration of the operator device C1 is the same as that of the operator device C described above. Therefore, the same reference numerals are given to the same parts.
操作子１１１と反力発生部材１１５との位置関係および連動部材１１３と反力発生部材１１６との位置関係は、前述した式９を満たすように設定される。すなわち、式９におけるＬ７は、軸部１０７ａと軸部１１１ｄとの位置によって定まり、Ｌ８は、支軸部１１１ｄと軸１１２ａとの位置によって定まる。また、Ｌ９は、軸部１０７ａと反力発生部材１１５との位置によって定まり、Ｌ１０は、軸１１２ａと反力発生部材１１６との位置によって定まる。
The positional relationship between the operating element 111 and the reaction force generating member 115 and the positional relationship between the interlocking member 113 and the reaction force generating member 116 are set so as to satisfy Equation 9 described above. That is, L7 in Expression 9 is determined by the positions of the shaft portion 107a and the shaft portion 111d, and L8 is determined by the positions of the support shaft portion 111d and the shaft 112a. L9 is determined by the positions of the shaft portion 107a and the reaction force generating member 115, and L10 is determined by the positions of the shaft 112a and the reaction force generating member 116.
Ｈ７は、被押圧操作時の操作子１１１の下面と、反力発生部材１１５が発生する反力がピークに達したときの反力発生部材１１５の上端との間の長さで定まり、Ｈ８は、被押圧操作時の押圧部１１４ａと、反力発生部材１１６が発生する反力がピークに達したときの反力発生部材１１６の下端との間の長さで定まる。また、操作子装置Ｃ１では、Ｈ８に相当する値をアジャスタ１１４で調整することができる。このため、操作子１１１が押圧されたときに、操作子１１１に対して発生する反力発生部材１１５の反力と、連動部材１１３に対して発生する反力発生部材１１６の反力とが、同時にピークに達するように設定することができる。
H7 is determined by the length between the lower surface of the operation element 111 at the time of the pressed operation and the upper end of the reaction force generating member 115 when the reaction force generated by the reaction force generating member 115 reaches the peak, and H8 is The length between the pressing portion 114a during the pressed operation and the lower end of the reaction force generating member 116 when the reaction force generated by the reaction force generating member 116 reaches a peak is determined. Further, in the operator device C1, a value corresponding to H8 can be adjusted by the adjuster 114. For this reason, when the operating element 111 is pressed, the reaction force of the reaction force generating member 115 generated against the operating element 111 and the reaction force of the reaction force generating member 116 generated against the interlocking member 113 are: It can be set to reach the peak at the same time.
［操作子装置Ｃ１の動作］
操作子１１１を押圧操作しない状態では、復帰バネ１０３によって操作子１１１は上方に付勢されて図２０の状態となる。この状態で、操作部１１１ｂを手で押さえて操作子１１１を下方に押圧すると、操作子１１１はコイルバネ１０３の弾性力に抗して、支持部１０７の軸部１０７ａを支点として、図２０の状態から反時計周り方向に回転する。この操作子１１１の回転に連動して、連動部材１１３は軸１１２ａを支点として反時計回り方向に回転する。
[Operation of operation device C1]
In a state where the operating element 111 is not pressed, the operating element 111 is urged upward by the return spring 103 to be in the state shown in FIG. In this state, when the operation unit 111b is pressed by hand and the operation unit 111 is pressed downward, the operation unit 111 resists the elastic force of the coil spring 103, and the shaft unit 107a of the support unit 107 is used as a fulcrum. Rotate counterclockwise from. In conjunction with the rotation of the operating element 111, the interlocking member 113 rotates counterclockwise about the shaft 112a.
操作子１１１の回転角が所定の角度になると、操作子１１１の下面が反力発生部材１１５の上端に当接して、反力発生部材１１５を押圧し始めると同時に、押圧部１１４ａが反力発生部材１１６の下端に当接して、反力発生部材１１６を押圧し始める。これによって、反力発生部材１１５は、操作子１１１に対して反力を発生し、反力発生部材１１６は、連動部材１１３を介して操作子１１１に対して反力を発生する。操作子１１１の回転角が増加すると、反力発生部材１１５，１１６が発生する反力は徐々に大きくなり、その反力は同時にピークに達する。その後、反力発生部材１１５，１１６は同時に座屈して反力は減少していく。
When the rotation angle of the operating element 111 reaches a predetermined angle, the lower surface of the operating element 111 comes into contact with the upper end of the reaction force generating member 115 and starts pressing the reaction force generating member 115, and at the same time, the pressing portion 114a generates the reaction force. Abutting on the lower end of the member 116, the reaction force generating member 116 starts to be pressed. Accordingly, the reaction force generating member 115 generates a reaction force with respect to the operation element 111, and the reaction force generation member 116 generates a reaction force with respect to the operation element 111 via the interlocking member 113. When the rotation angle of the operation element 111 increases, the reaction force generated by the reaction force generating members 115 and 116 gradually increases, and the reaction force simultaneously reaches a peak. Thereafter, the reaction force generating members 115 and 116 are simultaneously buckled, and the reaction force decreases.
操作子１１１への押圧を解除すると、操作子１１１は、コイルバネ１０３の復元力によって上方に付勢され、図２０に示した元の状態に戻る。このような操作は、電子楽器が演奏される間繰り返し行われ、演奏者は、適度な質量感やクリック感が得られる。このように、操作子装置Ｃ１には、アジャスタ１１４が備わるため、反力発生部材１１５，１１６が発生する反力が同時にピークに達するように調整が容易にできる。この操作子装置Ｃ１のそれ以外の作用効果は、前述した操作子装置Ｃの作用効果と同様である。
When the pressure on the operation element 111 is released, the operation element 111 is biased upward by the restoring force of the coil spring 103, and returns to the original state shown in FIG. Such an operation is repeated while the electronic musical instrument is played, and the performer can obtain an appropriate mass feeling and click feeling. As described above, since the operation device C1 includes the adjuster 114, the adjustment can be easily performed so that the reaction forces generated by the reaction force generation members 115 and 116 simultaneously reach a peak. The other operations and effects of the operation device C1 are the same as the operations and effects of the operation device C described above.
本発明に係る操作子装置は、前述した各実施形態に限定するものでなく、適宜変更して実施することができる。例えば、前述した各実施形態では、使用する複数の反力発生部材２５，２６等を同じ形状のもので構成しているが、それぞれ、大きさだけでなく形状の異なるものを組み合わせることもできる。また、反力発生部材２５，２６等を構成する材料もゴムに限らず、軟質の樹脂材料等、弾性を備えたものであれば使用が可能である。さらに、反力発生部材２５，２６等と、バネとを組み合わせて反力付与部を構成してもよい。
The operator device according to the present invention is not limited to the above-described embodiments, and can be implemented with appropriate modifications. For example, in each of the above-described embodiments, the plurality of reaction force generating members 25 and 26 to be used are configured with the same shape, but it is also possible to combine not only the size but also different shapes. Further, the material constituting the reaction force generating members 25, 26 and the like is not limited to rubber, and any material having elasticity such as a soft resin material can be used. Further, the reaction force applying portion may be configured by combining the reaction force generating members 25, 26 and the like and a spring.
