JP2583646Y2 - Keyboard assembly structure - Google Patents
Keyboard assembly structureInfo
- Publication number
- JP2583646Y2 JP2583646Y2 JP8889092U JP8889092U JP2583646Y2 JP 2583646 Y2 JP2583646 Y2 JP 2583646Y2 JP 8889092 U JP8889092 U JP 8889092U JP 8889092 U JP8889092 U JP 8889092U JP 2583646 Y2 JP2583646 Y2 JP 2583646Y2
- Authority
- JP
- Japan
- Prior art keywords
- key
- base end
- assembly structure
- key unit
- keyboard assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Description
【0001】[0001]
【産業上の利用分野】本考案は、電子楽器の鍵盤構造に
関し、特に複数の鍵ユニットを重ねて一連の鍵盤部を構
成する鍵盤組体構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keyboard structure of an electronic musical instrument, and more particularly to a keyboard assembly structure in which a plurality of key units are stacked to form a series of keyboard portions.
【0002】[0002]
【従来の技術】電子楽器の鍵盤は、複数の鍵を有する鍵
ユニットを、鍵の位置をずらせて2段または3段に重ね
て一連の鍵盤部を構成する。この鍵ユニットは、直線状
の共通基端部に対しこれと直交方向に、複数の鍵を揺動
可能に取付けた構成であり、各鍵ユニットの共通基端部
同士が重ね合わされる。この基端部には上面側に矩形の
突出部が形成され、この突出部形状に対応してその内面
側に凹部が形成される。鍵盤の組立時には、上側の鍵ユ
ニット基端部内面の凹部に下側の鍵ユニット基端部外面
の突出部を嵌合させて積層鍵盤組体構造を構成する。2. Description of the Related Art A keyboard of an electronic musical instrument comprises a key unit having a plurality of keys which are displaced from each other in two or three rows to form a series of keyboard sections. This key unit has a configuration in which a plurality of keys are swingably attached to a straight common base end in a direction orthogonal to the common base end, and the common base ends of the key units are overlapped. At the base end, a rectangular projection is formed on the upper surface side, and a concave portion is formed on the inner surface side corresponding to the shape of the projection. At the time of assembling the keyboard, a projection on the outer surface of the lower end of the key unit is fitted into the recess on the inner surface of the upper end of the upper key unit to form a laminated keyboard assembly structure.
【0003】[0003]
【考案が解決しようとする課題】しかしながら、従来の
鍵盤組体構造においては、鍵ユニットを重ね合わせた後
の相互の固定が不十分であったため、組体が分離しやす
くなって取扱い性が悪くその後の鍵フレームへの取付け
作業等がやりにくいものであった。However, in the conventional keyboard assembly structure, since the mutual fixing after overlapping the key units is insufficient, the assembly is easily separated and the handleability is poor. Subsequent mounting work to the key frame was difficult.
【0004】このような点を改良するため従来、スナッ
プ式の弾発性係止つめとこのつめが係入する孔を設けて
鍵ユニット同士を固定保持する構造や、予め鍵ユニット
に接着剤を塗布し組立後に接着剤を加熱して鍵ユニット
同士を熱溶着させた構造あるいは複数の鍵ユニツトを重
ねてその状態で熱かしめ固定法にて各鍵ユニット間を固
着する構造等が用いられていた。Conventionally, in order to improve such a point, a snap-type resilient locking pawl and a hole for engaging the pawl are provided to fix and hold the key units together, or an adhesive is previously applied to the key unit. A structure in which the key units are heat-welded by heating the adhesive after application and assembly, or a structure in which a plurality of key units are overlapped and the respective key units are fixed to each other by a heat swaging method in that state have been used. .
【0005】しかしながら、スナップ式の係止つめを用
いた場合には構造が複雑となって、部品製造が面倒にな
るとともにコストの増加を招いていた。また接着剤を用
いる構造においては、組立作業の工程数が多くなって作
業が面倒になりまた前記接着剤法および熱かしめ固定法
においては組立後の分離ができないため部品交換時に全
体を取替えなければならないという問題もあった。[0005] However, when a snap-type locking pawl is used, the structure becomes complicated, which makes the manufacture of parts complicated and increases the cost. Further, in the structure using an adhesive, the number of steps of the assembling work is increased and the work becomes troublesome.In addition, in the adhesive method and the heat caulking method, separation cannot be performed after assembling. There was also a problem that it did not.
【0006】本考案は上記従来技術の欠点に鑑みなされ
たものであって、簡単な構造でコストを増加させること
なく確実に鍵ユニット同士を固定保持できる鍵盤組体構
造の提供を目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks of the prior art, and has as its object to provide a keyboard assembly structure that can securely hold key units with a simple structure without increasing cost.
【0007】[0007]
【課題を解決するための手段】前記目的を達成するた
め、本考案に係る鍵盤組体構造は、複数の鍵を基端部に
対し揺動可能に支持した複数の鍵ユニットの上記基端部
を重ね合せた構造であって、一方の基端部に突出部を設
け、該突出部に対応する凹部を他方の基端部に設けて該
突出部を上記凹部に嵌合させた鍵盤組体構造において、
上記突出部の外側面または凹部の内側面に圧接用小突起
を設けている。In order to achieve the above object, a keyboard assembly structure according to the present invention comprises a plurality of key units which pivotally support a plurality of keys with respect to the base end. A keyboard assembly in which a protrusion is provided at one base end, a recess corresponding to the protrusion is provided at the other base end, and the protrusion is fitted into the recess. In structure
Small press-contact projections are provided on the outer surface of the protrusion or the inner surface of the recess.
【0008】[0008]
【作用】一方の鍵ユニットの凹部内に他方の鍵ユニット
の突出部を嵌合させたとき、凹部側または突出部側に設
けた小突起が凹部または突出部に対し圧接し、突出部が
凹部内に圧入状態となって固定保持される。When the protrusion of the other key unit is fitted into the recess of one key unit, the small protrusion provided on the side of the recess or the protrusion comes into pressure contact with the recess or the protrusion, and the protrusion is recessed. And is fixedly held therein.
【0009】[0009]
【実施例】図1は、本考案の実施例に係る鍵盤組体構造
の一部を示す分解斜視図であって、例えばC、E、G、
B、の白鍵ユニットとD、F、A、の白鍵ユニットと黒
鍵ユニットとを3段重ねで構成する鍵盤のうち、白鍵ユ
ニット2つを一部のみ示したものである。図は重ね合わ
せする2つの鍵ユニット1,2を下側からみた状態を示
す。各鍵ユニット1,2は、直線状の共通基端部3と、
この基端部3に対し揺動可能に支持された複数の鍵4を
有する。各鍵4は弾性支持部5を介して基端部3に対し
一体的にプラスチック材料によりモールド成形される。
この弾性支持部5の弾性作用により各鍵4が基端部3に
対し揺動可能となる。FIG. 1 is an exploded perspective view showing a part of a keyboard assembly structure according to an embodiment of the present invention.
FIG. 3 shows only a part of two white key units of a keyboard composed of three layers of white key units B, D, F, and A and black key units. The figure shows a state in which two key units 1 and 2 to be superimposed are viewed from below. Each key unit 1, 2 has a linear common base end 3,
It has a plurality of keys 4 that are swingably supported on the base end 3. Each key 4 is molded integrally with the base end portion 3 from a plastic material via an elastic support portion 5.
Each key 4 can swing with respect to the base end 3 by the elastic action of the elastic support portion 5.
【0010】各鍵ユニット1,2の共通基端部3には、
上面側(図では下側)に矩形の突出部7が適当な間隔で
複数の位置に形成され、各突出部7の内面側に凹部6が
形成される。8は透孔であり、鍵ユニット重ね合せ後の
鍵組体を楽器本体フレーム等に固定する場合にネジがこ
の透孔8を挿通する。鍵ユニット1の基端部3には位置
合せ用の穴9が設けられ、相手側鍵ユニット2の基端部
3の突起10が嵌入して相互の位置合せが達成される。The common base end 3 of each key unit 1 and 2 has
Rectangular protrusions 7 are formed on the upper surface side (lower side in the figure) at a plurality of positions at appropriate intervals, and a concave portion 6 is formed on the inner surface side of each protrusion 7. Reference numeral 8 denotes a through hole, and a screw passes through the through hole 8 when the key assembly after the key units are superimposed is fixed to the instrument body frame or the like. A hole 9 for alignment is provided in the base end 3 of the key unit 1, and the projection 10 of the base end 3 of the mating key unit 2 is fitted to achieve mutual alignment.
【0011】この実施例においては、鍵ユニット2の基
端部3の各凹部6の内側面に小突起(リブ)11が形成
される。このリブ11は実質上三角形断面形状で相手側
鍵ユニット1の突出部7の挿入方向に沿って縦方向に設
けられる。このようなリブ11をプラスチック弾性体か
らなる鍵ユニットと一体成形により設けることにより、
両鍵ユニット1,2を重ね合わせて鍵ユニット1の突出
部7を鍵ユニット2の凹部6内に嵌入させたときに、リ
ブ11の頂部が弾性変形して突出部7の側面に圧接し突
出部7が凹部6内に圧入状態で嵌合し鍵ユニット1,2
同士が相互に固定保持される。リブ11は、適当な圧入
力を得るために、三角形の頂角を約90度とし突出高さ
を例えば0.1〜0.2mm程度に形成し、また挿入動
作を円滑に行うために、入口側端部はR=0.3mm程
度で丸みを帯びていることが望ましい。In this embodiment, small projections (ribs) 11 are formed on the inner surface of each recess 6 of the base end 3 of the key unit 2. The rib 11 has a substantially triangular cross-sectional shape and is provided in the longitudinal direction along the insertion direction of the protrusion 7 of the mating key unit 1. By providing such a rib 11 by integral molding with a key unit made of a plastic elastic body,
When the two key units 1 and 2 are overlapped and the projection 7 of the key unit 1 is fitted into the recess 6 of the key unit 2, the top of the rib 11 is elastically deformed and pressed against the side surface of the projection 7 to project. The key unit 1 and the key unit 1
Are fixedly held together. The rib 11 has a triangular apex angle of about 90 degrees in order to obtain an appropriate press-in force, and has a protrusion height of, for example, about 0.1 to 0.2 mm. It is desirable that the side end is rounded with R = about 0.3 mm.
【0012】図2は、本考案の別の実施例の分解斜視図
である。この実施例は、前述のリブ11を突出部7の外
側面に設けた構成である。このリブ11の作用効果は前
記図1の実施例の場合と同じである。この実施例は、黒
鍵ユニット22と2つの白鍵ユニット24,26を重ね
合わせて1オクターブの鍵盤部分を構成する3段の積層
組体構造である。黒鍵ユニット22は基端部27に複数
の黒鍵21を揺動可能に支持した構成であり、内面(図
の下側)に前述の凹部(図示しない)が形成されこの凹
部内に白鍵ユニット24の突出部7が前述のように圧入
される。なお、図では黒鍵を2つのみ示してあるが、実
際には5つの黒鍵(C#、D#、F#、G#、A#)が
所定の位置に設けられる。中間の白鍵ユニット24は複
数の白鍵23を基端部28に揺動可能に支持した構造で
あり、図では白鍵を2つのみ示してあるが、実際には例
えば3つの白鍵(D、F、A)が所定の位置に設けられ
る。また、最下段の白鍵ユニット26は、複数の白鍵2
5を共通基端部29に揺動可能に支持した構造であり、
図では白鍵を2つのみ示してあるが、実際には例えば4
つの白鍵(C、E、G、B)が所定の位置に設けられ
る。FIG. 2 is an exploded perspective view of another embodiment of the present invention. In this embodiment, the rib 11 is provided on the outer surface of the protrusion 7. The function and effect of the rib 11 are the same as those of the embodiment of FIG. This embodiment has a three-stage laminated assembly structure in which a black key unit 22 and two white key units 24 and 26 are overlapped to constitute a one-octave keyboard portion. The black key unit 22 has a configuration in which a plurality of black keys 21 are swingably supported at a base end portion 27, and the above-described concave portion (not shown) is formed on an inner surface (lower side in the figure). The protrusion 7 of the unit 24 is press-fitted as described above. Although only two black keys are shown in the figure, five black keys (C #, D #, F #, G #, A #) are actually provided at predetermined positions. The intermediate white key unit 24 has a structure in which a plurality of white keys 23 are swingably supported on a base end portion 28. Although only two white keys are shown in the drawing, in practice, for example, three white keys ( D, F, and A) are provided at predetermined positions. Further, the white key unit 26 at the bottom is composed of a plurality of white keys 2.
5 is swingably supported on the common base end portion 29,
In the figure, only two white keys are shown.
Two white keys (C, E, G, B) are provided at predetermined positions.
【0013】なお、上記実施例ではリブ11を突出部7
または凹部6の両側に設けたが、一方の側にのみ設けて
もよい。また、突出部7の位置や大きさおよび間隔は適
宜設定できる。また、リブ11の形状は三角柱に限ら
ず、半円柱形状あるいは半球状その他の突起であっても
よい。In the above embodiment, the rib 11 is connected to the projection 7
Alternatively, although provided on both sides of the concave portion 6, it may be provided on only one side. In addition, the position, size, and interval of the protrusion 7 can be set as appropriate. The shape of the rib 11 is not limited to a triangular prism, and may be a semi-cylindrical column, a hemisphere, or another projection.
【0014】[0014]
【考案の効果】以上説明したように、本考案において
は、突出部を凹部に嵌合させて鍵ユニット同士を重ね合
わせる鍵盤組体構造において、突出部または凹部のいづ
れか一方に小突起を設けているため、突出部が凹部内に
圧入状態で保持され鍵ユニット同士が相互に固定保持さ
れる。このため、鍵盤組立作業における取扱い性が良好
になり、組立作業が円滑に行われる。また、このような
小突起は簡単な構成であって、鍵ユニットとともに一体
モールド成形可能であり、コストの増加を来すことはな
い。As described above, in the present invention, in the keyboard assembly structure in which the protrusions are fitted into the recesses and the key units are overlapped with each other, the small protrusions are provided on either the protrusions or the recesses. Therefore, the protruding portion is held in the recess in a press-fit state, and the key units are fixedly held to each other. Therefore, handleability in the keyboard assembling operation is improved, and the assembling operation is performed smoothly. Further, such a small projection has a simple configuration, and can be integrally molded with the key unit, and does not increase the cost.
【図面の簡単な説明】[Brief description of the drawings]
【図1】 本考案の実施例に係る鍵盤組体構造の一部を
示す分解斜視図である。FIG. 1 is an exploded perspective view showing a part of a keyboard assembly structure according to an embodiment of the present invention.
【図2】 本考案の別の実施例に係る鍵盤組体構造の分
解斜視図である。FIG. 2 is an exploded perspective view of a keyboard assembly structure according to another embodiment of the present invention.
1,2;鍵ユニット、3;基端部、4;鍵、5;支持
部、6;凹部、7;突出部、11;リブ。1, 2; key unit, 3; base end, 4; key, 5; support, 6; recess, 7;
Claims (1)
した複数の鍵ユニットの上記基端部を重ね合せた構造で
あって、一方の基端部に突出部を設け、該突出部に対応
する凹部を他方の基端部に設けて該突出部を上記凹部に
嵌合させた鍵盤組体構造において、上記突出部の外側面
または凹部の内側面に圧接用小突起を設けたことを特徴
とする鍵盤組体構造。1. A structure in which the base ends of a plurality of key units that support a plurality of keys so as to be swingable with respect to the base end are overlapped with each other. In a keyboard assembly structure in which a concave portion corresponding to the protruding portion is provided on the other base end portion and the protruding portion is fitted in the concave portion, a small press-contact projection is provided on an outer surface of the protruding portion or an inner surface of the concave portion. A keyboard assembly structure characterized by that.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8889092U JP2583646Y2 (en) | 1992-12-25 | 1992-12-25 | Keyboard assembly structure |
KR1019930015374A KR970006172B1 (en) | 1992-08-10 | 1993-08-07 | Keyboard assembly for electronic musical instrument |
CN95102765A CN1035697C (en) | 1992-08-10 | 1995-03-08 | Keyboard assembly for electronic musical instrument |
US08/406,568 US5955690A (en) | 1992-08-10 | 1995-03-20 | Keyboard assembly for electronic musical instrument |
US08/903,261 US6002078A (en) | 1992-08-10 | 1997-07-25 | Keyboard assembly for electronic musical instrument |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8889092U JP2583646Y2 (en) | 1992-12-25 | 1992-12-25 | Keyboard assembly structure |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0654088U JPH0654088U (en) | 1994-07-22 |
JP2583646Y2 true JP2583646Y2 (en) | 1998-10-27 |
Family
ID=13955575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8889092U Expired - Fee Related JP2583646Y2 (en) | 1992-08-10 | 1992-12-25 | Keyboard assembly structure |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2583646Y2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6135656B2 (en) * | 2014-12-18 | 2017-05-31 | ヤマハ株式会社 | Keyboard device |
JP6323574B2 (en) * | 2017-01-16 | 2018-05-16 | ヤマハ株式会社 | Keyboard device |
-
1992
- 1992-12-25 JP JP8889092U patent/JP2583646Y2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0654088U (en) | 1994-07-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |