JPH0114063Y2 - - Google Patents
Info
- Publication number
- JPH0114063Y2 JPH0114063Y2 JP8844782U JP8844782U JPH0114063Y2 JP H0114063 Y2 JPH0114063 Y2 JP H0114063Y2 JP 8844782 U JP8844782 U JP 8844782U JP 8844782 U JP8844782 U JP 8844782U JP H0114063 Y2 JPH0114063 Y2 JP H0114063Y2
- Authority
- JP
- Japan
- Prior art keywords
- key
- pieces
- piece
- width
- slits
- 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
Links
- 102100027340 Slit homolog 2 protein Human genes 0.000 claims description 10
- 101710133576 Slit homolog 2 protein Proteins 0.000 claims description 10
- 239000013013 elastic material Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- HBGPNLPABVUVKZ-POTXQNELSA-N (1r,3as,4s,5ar,5br,7r,7ar,11ar,11br,13as,13br)-4,7-dihydroxy-3a,5a,5b,8,8,11a-hexamethyl-1-prop-1-en-2-yl-2,3,4,5,6,7,7a,10,11,11b,12,13,13a,13b-tetradecahydro-1h-cyclopenta[a]chrysen-9-one Chemical group C([C@@]12C)CC(=O)C(C)(C)[C@@H]1[C@H](O)C[C@]([C@]1(C)C[C@@H]3O)(C)[C@@H]2CC[C@H]1[C@@H]1[C@]3(C)CC[C@H]1C(=C)C HBGPNLPABVUVKZ-POTXQNELSA-N 0.000 description 1
- PFRGGOIBYLYVKM-UHFFFAOYSA-N 15alpha-hydroxylup-20(29)-en-3-one Natural products CC(=C)C1CCC2(C)CC(O)C3(C)C(CCC4C5(C)CCC(=O)C(C)(C)C5CCC34C)C12 PFRGGOIBYLYVKM-UHFFFAOYSA-N 0.000 description 1
- SOKRNBGSNZXYIO-UHFFFAOYSA-N Resinone Natural products CC(=C)C1CCC2(C)C(O)CC3(C)C(CCC4C5(C)CCC(=O)C(C)(C)C5CCC34C)C12 SOKRNBGSNZXYIO-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
Landscapes
- Electrophonic Musical Instruments (AREA)
Description
【考案の詳細な説明】
本考案は、例えば電子オルガン等の電子楽器用
鍵盤装置に関する。[Detailed Description of the Invention] The present invention relates to a keyboard device for an electronic musical instrument such as an electronic organ.
従来この種の鍵盤装置として、第１図示のよう
に、鍵後部下面に設けた透孔ａをその下方のシヤ
ーシｂの後部を上方に折曲げて形成した各鍵ｃに
対応する起立片ｄに嵌合させて鍵の支点を形成
し、鍵後部のスプリング取付用透孔とシヤーシｂ
間にスプリングｅを張架して鍵先端を上方に付勢
する構造のものが知られているが、このものは各
鍵毎にスプリングｅを取付ける必要があるから、
多大な工数を要し、コスト高となる欠点があり、
また支点まわりの力のモーメントからみて支点部
及びスプリング取付用孔近傍に過大な力が加わる
ため全鍵にわたつてシヤーシに与えられる圧力に
よりシヤーシの変形ねじれが発生し易いと共に、
長期の使用により鍵ｃ及び起立片ｄの摩耗が生じ
易い欠点がある。また他の例として第２図示のよ
うに、鍵ｃの後方のフレームｆ上に水平方向にく
し歯状の板ばねｇを片持ち支持させ、その基部を
フレームｆにビス止め等により、その他端部を鍵
後部に挿入した上前方への離脱を防ぐため接着等
の手段により固着し、鍵先端を板ばねｇの弾発力
により上方に付勢する構造のものが知られている
が、ビス、ねじ止め等の工数が多大でありコスト
高になる欠点があるとともに、鍵の脱着が困難な
ばかりでなく一鍵毎の脱着が不可能である等の欠
点を有していた。 Conventionally, as shown in the first diagram, in this type of keyboard device, a through hole a is formed on the lower surface of the back of the key, and an upright piece d corresponding to each key c is formed by bending the rear part of a chassis b below the hole a upward. Fit together to form the fulcrum of the key, and connect the spring mounting hole at the rear of the key to the chassis b.
There is a known structure in which a spring e is stretched between the keys to urge the tip of the key upward, but this requires a spring e to be attached to each key.
The drawback is that it requires a large amount of man-hours and is costly.
Also, considering the moment of force around the fulcrum, excessive force is applied to the fulcrum and the vicinity of the spring mounting hole, so the pressure applied to the chassis across all keys tends to cause deformation and twisting of the chassis.
There is a drawback that the key c and the upright piece d tend to wear out due to long-term use. As another example, as shown in the second figure, a comb-shaped plate spring g is supported horizontally on a frame f behind the key c, and its base is fixed to the frame f with screws, etc., and the other end is There is a known structure in which the key is inserted into the rear part of the key and fixed by means such as adhesive to prevent it from coming off in the forward direction, and the tip of the key is urged upward by the elastic force of the leaf spring g. However, there are disadvantages in that it requires a large amount of man-hours for screwing, etc., resulting in high costs, and it is not only difficult to attach and detach keys, but also that it is impossible to attach and detach one key at a time.
本考案は、各鍵毎に単独にスプリングを取付け
る必要がないとともに前記支点部に相当するヒン
ジ部分を有しないため鍵とその支持部との間の摺
動による摩耗がなく、またその両者間の脱着も容
易に行なうことができ、シヤーシ等に局部的な過
大な圧力が加わらないような電子楽器の鍵盤装置
を提供することをその目的とするもので、後部端
面１に上下方向に貫通する一対のスリツト２を有
する突片３を一体に形成した鍵４と、基部１１の
上端の複数個の鍵４に対応した位置に複数個の独
立片６が突設された弾性材料から成る板ばね７と
を備え、該独立片６は一対の分岐片６Ａを有し、
該一対の分岐片６Ａは、該分岐片６Ａの側縁がそ
の弾性により該スリツト２の底部に圧接するよう
に該一対のスリツト２にそれぞれ嵌合し、前記板
ばね７はほぼ直立にされ、その基部１１がフレー
ム５に固着されてなる。 The present invention does not require a separate spring to be attached to each key, and does not have a hinge part corresponding to the fulcrum part, so there is no wear due to sliding between the key and its support part, and there is no need to attach a spring between the two. The purpose of this device is to provide a keyboard device for an electronic musical instrument that can be easily attached and detached and that does not apply excessive local pressure to the chassis, etc. a key 4 integrally formed with a projecting piece 3 having a slit 2; and a leaf spring 7 made of an elastic material with a plurality of independent pieces 6 protruding from the upper end of the base 11 at positions corresponding to the plurality of keys 4. The independent piece 6 has a pair of branch pieces 6A,
The pair of branch pieces 6A are fitted into the pair of slits 2 so that the side edges of the branch pieces 6A are pressed against the bottom of the slit 2 due to their elasticity, and the leaf spring 7 is made substantially upright; Its base 11 is fixed to the frame 5.
以下本考案の実施例を図面につき説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第３図は、その実施の１例の側面図、第４図は
その鍵４の後部、第５図は板ばね７の各斜視図で
ある。以上の図面に示すように鍵４の後部端面に
はその上下方向に抜け、両側に外側に向つて開口
するスリツト２，２を有する突片３が形成され、
鍵４を支持する弾性材料からなる板ばね７は、基
部１１の少なくとも一部分例えば２個所に折曲さ
れたＵ字形部８，８が形成され、上部に複数個の
鍵４に対応する複数個の独立片６が一体に形成さ
れている。この独立片６はＵ字形をなしその分岐
片６Ａの内縁間の長さｄは前記突片３の両スリツ
ト２，２間の長さＤより小さ目に形成されてい
る。 3 is a side view of one example of its implementation, FIG. 4 is a rear view of the key 4, and FIG. 5 is a perspective view of the leaf spring 7. As shown in the above drawings, a protruding piece 3 is formed on the rear end face of the key 4, and has slits 2, 2 extending vertically and opening outward on both sides.
The leaf spring 7 made of an elastic material that supports the keys 4 has a base 11 formed with at least a U-shaped portion 8, 8 bent at two places, for example, and a plurality of U-shaped portions 8, 8, which are bent at two places, on the upper part thereof. An independent piece 6 is integrally formed. This independent piece 6 is U-shaped, and the length d between the inner edges of the branched piece 6A is smaller than the length D between the two slits 2 of the protruding piece 3.
かくしてこの第５図示の板ばね７の２つのＵ字
形部８を第３図示のようにフレーム５の開口部９
に嵌合すると共にその折曲片部１２を開口縁部に
係止しその弾発力によりフレーム５の開口部９に
挾持させる。鍵４はフレーム５に対しほぼ直立さ
れた独立片６の各分岐片６Ａ，６Ａにそのスリツ
ト２，２を嵌合することにより取り付ける。 Thus, the two U-shaped parts 8 of the leaf spring 7 shown in the fifth figure are inserted into the opening 9 of the frame 5 as shown in the third figure.
At the same time, the bent piece 12 is engaged with the edge of the opening, and its elastic force is used to clamp the opening 9 of the frame 5. The key 4 is attached to the frame 5 by fitting the slits 2, 2 into the branch pieces 6A, 6A of the independent piece 6, which stands substantially upright.
鍵４を板ばね７によつてフレーム５に取付けた
状態では鍵４の先端は上方に上つており、演奏の
ためにその先端を押圧すると、板ばね７の独立片
６は曲がり、指を離すと独立片６の曲がりによる
弾発力で元の状態に復帰する。 When the key 4 is attached to the frame 5 by the leaf spring 7, the tip of the key 4 is raised upward, and when the tip is pressed for playing, the independent piece 6 of the leaf spring 7 bends and the finger is released. It returns to its original state due to the elastic force caused by the bending of the independent piece 6.
第６図は鍵の突片に設けたスリツトの形状の１
変形例を示す。同図示のように鍵４の突片３に設
けたスリツト２の形状をその底部に向つて幅狭に
なるように傾斜させて形成し、その底部の幅ｂを
板ばね７の板厚Ｂより少し狭くすると、スリツト
２の幅長と独立片６の分岐片６Ａの板厚に差があ
つても常に分岐片６Ａとスリツト２は圧接状態で
嵌合するから、押鍵の際、前記係合部のがたによ
る分岐片６Ａの微細な振動、したがつてそれに起
因する雑音が発しない。 Figure 6 shows the shape of the slit in the protrusion of the key.
A modified example is shown. As shown in the figure, the shape of the slit 2 provided in the protruding piece 3 of the key 4 is formed so that it becomes narrower toward the bottom, and the width b of the bottom is made smaller than the thickness B of the leaf spring 7. If the width of the slit 2 is slightly narrowed, even if there is a difference in the width of the slit 2 and the thickness of the branch piece 6A of the independent piece 6, the branch piece 6A and the slit 2 will always fit together in a press-contact state. The minute vibration of the branch piece 6A due to the backlash of the parts, and therefore the noise caused by it, are not emitted.
第７図は鍵４の後部端面１に形成する突片３の
他の例で、これは内側に向つて開口する、上下方
向に抜けるスリツト２，２を有する。このスリツ
ト２，２に嵌合する独立片６の２つの分岐片６
Ａ，６Ａの外縁間の長さd′は突片３の両スリツト
２，２の底部間の長さD′より大きめにする。 FIG. 7 shows another example of the protrusion 3 formed on the rear end surface 1 of the key 4, which has slits 2, 2 that open inward and pass through in the vertical direction. Two branch pieces 6 of the independent piece 6 that fit into the slits 2, 2
The length d' between the outer edges of A and 6A is made larger than the length D' between the bottoms of both slits 2 and 2 of the projecting piece 3.
以上述べた構成によれば板ばね７の分岐片６
Ａ，６Ａには鍵４の支点部であるヒンジ部が形成
されないため、突片３のスリツト２への独立片６
の分岐片６Ａの嵌入深さが定まらないので、各鍵
４の取付け高さを均一にするためには、第８図Ａ
に示すように嵌入深さを制限する意味で位置決め
用爪１０をその側部に設けてもよい。また鍵先端
に過大な力が加わつた際に鍵後部が上方に独立片
６から離脱することを防ぐために第８図Ｂに示す
ように上方に爪１３を設けることができる。 According to the configuration described above, the branch piece 6 of the leaf spring 7
A, 6A do not have a hinge part that is the fulcrum part of the key 4, so the independent piece 6 of the projecting piece 3 to the slit 2 is not formed.
Since the insertion depth of the branch piece 6A is not determined, in order to make the installation height of each key 4 uniform, it is necessary to
As shown in FIG. 2, positioning claws 10 may be provided on the sides to limit the insertion depth. Further, in order to prevent the rear part of the key from separating upward from the independent piece 6 when an excessive force is applied to the tip of the key, a claw 13 can be provided at the upper part as shown in FIG. 8B.
このように本考案によるときは、後部端面１に
上下方向に貫通する一対のスリツト２を有する突
片３を一体に形成した鍵４と、基部１１の上端の
複数個の鍵４に対応した位置に複数個の独立片６
が突設された弾性材料から成る板ばね７とを備
え、該独立片６は一対の分岐片６Ａを有し、該一
対の分岐片６Ａは、該分岐片６Ａの側縁がその弾
性により該スリツト２の底部に圧接するように該
一対のスリツト２にそれぞれ嵌合し、前記板ばね
７はほぼ直立にされ、その基部１１がフレーム５
に固着されてなるので、従来品のようなヒンジ部
における鍵及びこれの支持片間の摩耗がなく、１
鍵毎のフレームからの脱着が可能であり、支点部
のフレームに過大な圧力が加わらず、その部分を
変形する恐れがないため樹脂製のものに代替する
ことができ、更に構成が簡単で鍵の装着作業が容
易である等の効果を有する。 In this way, according to the present invention, there is a key 4 integrally formed with a protruding piece 3 having a pair of slits 2 penetrating the rear end surface 1 in the vertical direction, and a key 4 at a position corresponding to the plurality of keys 4 at the upper end of the base 11. multiple independent pieces 6
The independent piece 6 has a pair of branch pieces 6A, and the pair of branch pieces 6A have side edges of the branch pieces 6A that are bent due to their elasticity. The leaf springs 7 are fitted into the pair of slits 2 so as to be in pressure contact with the bottoms of the slits 2, and the leaf springs 7 are made substantially upright, with their bases 11 being in contact with the frame 5.
Since it is fixed to the key, there is no wear between the key and its supporting piece at the hinge part unlike in conventional products, and the
Each key can be attached and detached from the frame, and as there is no excessive pressure applied to the fulcrum frame and there is no risk of deforming that part, it can be replaced with a resin one, and the structure is simple and the key This has advantages such as easy installation work.
第１図及び第２図は従来の鍵盤装置の側面図、
第３図は本考案の１実施例の側面図、第４図はそ
の鍵の後部の斜視図、第５図はその板ばねの斜視
図、第６図は鍵の突片に設けたスリツトの形状の
一変形例を示す鍵後部の平面図、第７図は鍵の突
片の一変形例を示す鍵後部の斜視図、第８図Ａ，
Ｂは板ばねの独立片の変形例を示す正面図であ
る。
２……スリツト、３……突片、４……鍵、５…
…フレーム、６……独立片、７……板ばね。
Figures 1 and 2 are side views of a conventional keyboard device;
Fig. 3 is a side view of one embodiment of the present invention, Fig. 4 is a perspective view of the rear part of the key, Fig. 5 is a perspective view of the leaf spring, and Fig. 6 is a view of the slit provided in the protrusion of the key. FIG. 7 is a plan view of the rear part of the key showing a modified example of the shape of the key; FIG. 7 is a perspective view of the rear part of the key showing a modified example of the protrusion of the key; FIG.
B is a front view showing a modification of the independent piece of the leaf spring. 2...Slit, 3...Protrusion, 4...Key, 5...
...frame, 6...independent piece, 7...leaf spring.
Claims (1)
ツト２を有する突片３を一体に形成した鍵４
と、基部１１の上端の複数個の鍵４に対応した
位置に複数個の独立片６が突設された弾性材料
から成る板ばね７とを備え、該独立片６は一対
の分岐片６Ａを有し、該一対の分岐片６Ａは、
該分岐片６Ａの側縁がその弾性により前記スリ
ツト２の底部に圧接するように該一対のスリツ
ト２にそれぞれ嵌合し、前記板ばね７はほぼ直
立にされ、その基部１１がフレーム５に固着さ
れてなる電子楽器用鍵盤楽器。 ２ 後部端面１に所要幅で両側に上下方向に貫通
するスリツト２を有する凸形の突片３を一体に
形成した鍵４と、該鍵４のスリツト２幅と同
等、若しくはやや薄い板厚で、突片３幅と同
等、若しくはやや狭幅間隔の分岐片６Ａを端部
に有する独立片６を複数個ほぼ直立させ、基部
１１がフレーム５に固着された弾性材料からな
る板ばね７とを備え、該板ばね７の分岐片６Ａ
間に前記鍵４の突片３をそれぞれ嵌合してなる
実用新案登録請求の範囲第１項記載の電子楽器
用鍵盤楽器。 ３ 前記鍵４の後部端面１に所要幅で上下方向に
貫通するスリツト２を有するＬ字形の突片３を
所要間隔で対向して一体に形成した鍵４と、前
記板ばね７の端部に前記スリツト２幅と同等、
若しくはやや薄い板厚で、突片３幅と同等、若
しくはやや広幅に形成した独立片６を備えてな
る実用新案登録請求の範囲第１項記載の電子楽
器用鍵盤楽器。[Claims for Utility Model Registration] 1. A key 4 integrally formed with a projecting piece 3 having a pair of slits 2 penetrating the rear end face 1 in the vertical direction.
and a plate spring 7 made of an elastic material and having a plurality of independent pieces 6 protruding from the upper end of the base 11 at positions corresponding to the plurality of keys 4, and the independent pieces 6 have a pair of branch pieces 6A. The pair of branch pieces 6A have:
The side edges of the branch pieces 6A are fitted into the pair of slits 2 so as to come into pressure contact with the bottoms of the slits 2 due to their elasticity, and the plate springs 7 are made almost upright, and their bases 11 are fixed to the frame 5. A keyboard instrument for electronic musical instruments. 2 A key 4 integrally formed with a convex protrusion 3 having a slit 2 vertically penetrating on both sides with a required width on the rear end surface 1, and a plate having a thickness equal to or slightly thinner than the width of the slit 2 of the key 4. , a plurality of independent pieces 6 having branch pieces 6A at their ends with a width equal to or slightly narrower than the width of the protruding pieces 3 are made to stand almost upright, and a leaf spring 7 made of an elastic material whose base 11 is fixed to the frame 5 is attached. A branch piece 6A of the leaf spring 7
A keyboard instrument for an electronic musical instrument according to claim 1, wherein the protruding pieces 3 of the key 4 are respectively fitted between them. 3. A key 4, in which L-shaped protrusions 3 having slits 2 vertically penetrating with a required width are integrally formed on the rear end surface 1 of the key 4, facing each other at a required interval, and an end of the leaf spring 7. Equivalent to the width of the slit 2,
A keyboard instrument for an electronic musical instrument according to claim 1, which is a utility model registered, and comprises an independent piece 6 having a slightly thinner plate thickness and having a width equal to or slightly wider than the protruding piece 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8844782U JPS58190696U (en) | 1982-06-14 | 1982-06-14 | Keyboard device for electronic musical instruments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8844782U JPS58190696U (en) | 1982-06-14 | 1982-06-14 | Keyboard device for electronic musical instruments |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58190696U JPS58190696U (en) | 1983-12-17 |
| JPH0114063Y2 true JPH0114063Y2 (en) | 1989-04-25 |
Family
ID=30097117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8844782U Granted JPS58190696U (en) | 1982-06-14 | 1982-06-14 | Keyboard device for electronic musical instruments |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58190696U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5861859B2 (en) * | 2011-07-01 | 2016-02-16 | カシオ計算機株式会社 | Pedal device and keyboard instrument |
-
1982
- 1982-06-14 JP JP8844782U patent/JPS58190696U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58190696U (en) | 1983-12-17 |
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