JPS59133592A - Keyboard of electronic musical instrument - Google Patents
Keyboard of electronic musical instrumentInfo
- Publication number
- JPS59133592A JPS59133592A JP58007956A JP795683A JPS59133592A JP S59133592 A JPS59133592 A JP S59133592A JP 58007956 A JP58007956 A JP 58007956A JP 795683 A JP795683 A JP 795683A JP S59133592 A JPS59133592 A JP S59133592A
- Authority
- JP
- Japan
- Prior art keywords
- key
- support shaft
- keyboard
- holding member
- keys
- 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.)
- Granted
Links
Landscapes
- Electrophonic Musical Instruments (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の技術分野〕
この発明は組立て作業性を向上させるようにした電子楽
器の鍵盤装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a keyboard device for an electronic musical instrument that improves assembly workability.
従来から電子オルガン等の電子鍵盤楽器における鍵盤装
置は、合成樹脂等によって一体に形成された複数個の鍵
と、プレス加工によって製作さnに介在され鍵に復帰習
性を付与する復帰用ばね等を備えている。Traditionally, keyboard devices in electronic keyboard instruments such as electronic organs have consisted of a plurality of keys integrally formed of synthetic resin, etc., and a return spring, etc., which is made by press processing and is interposed between the keys to give the keys a return habit. We are prepared.
ところで、鍵の支点構造としては従来がら種々提案実施
されているが、その−例として第1図に示す軸を用いた
ものが知られている。すなわち、1は鍵盤フレーム、2
は鍵、3は鍵盤フレーム1上に配設され水平な軸4を支
持するブラケットで、前記軸4によシ前記鍵2の後端部
を軸支するように構成したものである。前記鍵2には軸
4が貫通する軸受孔5が設けらnl この孔5と前記軸
4との接触摺動により鍵2の安定かつ円滑な回動動作を
確保し、良好なタッチ感を得るようにしている。By the way, various proposals have been made for the fulcrum structure of the key, and one known example is one using the shaft shown in FIG. 1. That is, 1 is the keyboard frame, 2
3 is a bracket disposed on the keyboard frame 1 and supporting a horizontal shaft 4. The shaft 4 is configured to pivotally support the rear end of the key 2. The key 2 is provided with a bearing hole 5 through which the shaft 4 passes. The sliding contact between the hole 5 and the shaft 4 ensures stable and smooth rotation of the key 2 and provides a good touch feeling. That's what I do.
しかるに、かかる従来の支点構造においては組立ておよ
び取外し作業が極めて面倒であるという大きな欠点を有
していた。すなわち、一般に複数個の鍵2は極めて近接
した状態で並列配置されるため、通常全鍵−軸方式が採
用されるものである。However, such conventional fulcrum structures have a major drawback in that assembly and disassembly operations are extremely troublesome. That is, since a plurality of keys 2 are generally arranged in parallel in extremely close proximity, the all-key-shaft method is usually adopted.
したがって、ある一つの鍵2を外したいと思っても軸4
を全部の鍵およびブラケット3から抜かない限り外すこ
とができず、全鍵バラバラになってしまう。また組込む
場合にはこの逆で全鍵を整列させておかないと軸4が通
っていかず極めて組みにくい。加えて、全鍵−軸である
から鍵2の左右方向の移動に関してはその係止機能を軸
4に持たせることが困難である。Therefore, even if you want to remove a certain key 2, the shaft 4
cannot be removed unless all the keys and the bracket 3 are removed, and all the keys fall apart. Moreover, when assembling, it is extremely difficult to assemble unless all the keys are lined up in reverse order as the shaft 4 will not pass through. In addition, since the entire key is a shaft, it is difficult to provide the shaft 4 with a locking function for the movement of the key 2 in the left and right direction.
この発明は上述したような事情に鑑みてなさnたもので
、鍵の軸受孔に相対回動自在に挿入配置された支持軸を
、鍵盤フレーム上に配設された支持軸保持部材により保
持するという極めて簡単な構成により、−鍵一軸方式の
実現化を計り、組立ておよび取外し時の作業性を向上さ
せるようにした電子楽器の鍵盤装置を提供するものであ
る。This invention was made in view of the above-mentioned circumstances, and includes a support shaft inserted into a bearing hole of a key so as to be relatively rotatable, and is held by a support shaft holding member disposed on a keyboard frame. The present invention provides a keyboard device for an electronic musical instrument that has an extremely simple configuration, realizes a single-key key system, and improves workability during assembly and disassembly.
以下、この発明を図面に示す実施例に基づいて詳細に説
明する。Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.
第2図はこの発明に係る鍵盤装置の一実施例を示す断面
図、第3図は要部分解斜視図である。これらの図におい
て、10は合成樹脂によって一体に形成された鍵で、こ
の鍵10は裏面側がくり抜くような状態で形成されるこ
とにより断面形状が略コ字状を呈し、その後端部には両
側面に開口する軸受孔11が設けられている。FIG. 2 is a sectional view showing an embodiment of the keyboard device according to the present invention, and FIG. 3 is an exploded perspective view of the main parts. In these figures, reference numeral 10 denotes a key integrally formed from synthetic resin, and the key 10 has a substantially U-shaped cross section by being hollowed out on the back side, and has two holes on both sides at the rear end. A bearing hole 11 opening in the surface is provided.
前記軸受孔11には支持軸保持部材13によって両端部
が保持さ牡るX支持軸12が挿入さnlこの支持軸12
を中心として鍵10が上下方向に回動自在に支持される
。前記支持軸12は前記鍵10の後端部幅とほぼ同一の
長さを有し、その両端面にはそれぞれ軸方向に延在する
突条体からなる保合部14A 、 14Bがそれぞれ一
体に突設されている。したがって、前記支持軸12を軸
受孔11に挿入すると、各係合部14A 、 14Bは
鍵10の側方にそれぞれ突出される。An X support shaft 12 whose both ends are held by support shaft holding members 13 is inserted into the bearing hole 11.
The key 10 is supported so as to be rotatable in the vertical direction with the key 10 as the center. The support shaft 12 has approximately the same length as the width of the rear end of the key 10, and retaining portions 14A and 14B formed of protrusions extending in the axial direction are integrally formed on both end surfaces of the support shaft 12, respectively. It is installed protrudingly. Therefore, when the support shaft 12 is inserted into the bearing hole 11, the engaging portions 14A and 14B are respectively projected to the sides of the key 10.
前記支持軸保持部材13は6鍵10の支持軸12を共通
に保持するもので、合成樹脂等によって略櫛歯状に形成
されることにより、所定の間隔をおいて並列配置される
複数個の支持壁15A 、 15B。The support shaft holding member 13 holds the support shafts 12 of the six keys 10 in common, and is made of synthetic resin or the like in a substantially comb-like shape, so that a plurality of support shafts 12 are arranged in parallel at predetermined intervals. Support walls 15A, 15B.
15C@・・と、こ牡ら支持壁15A 、 15B
、 15C・・・の後端を共通に連結する連結部16
とを一体に有して鍵盤フレーム1の後端部上面に配設さ
れる0
この場合、支持軸保持部材13としては止めねじによっ
て鍵盤フレーム1」二に固定されるものと示したが、こ
れに限らず適宜な係合片により着脱可能に取付けたりあ
るいはアウトサート成形法によって前記鍵盤フレームと
一体に形成されるものであってもよい。各支持壁15A
、 15B 、 15C・・・の両側面の高さ方向中
央箇所には前記支持軸12の係合部14A 、 14B
に対応して係合溝からなる係止部17がそれぞれ形成
されている。これらの係止部1Tは各支持壁15A 、
15B 、 15C・・・の前端面より後方に向って
ほぼ水平に延在し、前記保合部14A 、 14B が
挿入される。なお、隣接する2つの支持壁15Aと15
B 、 15Bと15C・拳・間の間隔は6鍵10(白
鍵と黒鍵)の後端部幅に対応して設定される。15C@... and supporting walls 15A and 15B
, 15C... Connecting portion 16 that commonly connects the rear ends of
In this case, the support shaft holding member 13 is shown as being fixed to the keyboard frame 1'' with a set screw. However, the present invention is not limited to this, and it may be detachably attached using a suitable engagement piece, or may be formed integrally with the keyboard frame by an outsert molding method. Each support wall 15A
, 15B, 15C... are provided with engaging portions 14A, 14B of the support shaft 12 at the center in the height direction of both side surfaces.
A locking portion 17 consisting of an engaging groove is formed correspondingly to each of the locking portions. These locking portions 1T are connected to each support wall 15A,
The retaining portions 14A, 14B extend rearward and approximately horizontally from the front end surfaces of the retaining portions 15B, 15C, etc., into which the retaining portions 14A, 14B are inserted. Note that two adjacent support walls 15A and 15
B, the interval between 15B and 15C, fist, is set corresponding to the width of the rear end of the six keys 10 (white keys and black keys).
前記鍵10の前端部下面には略鉤形のストッパ20が一
体に垂設さn1前記鍵盤フレーム1の前端部下面21よ
り下方に延在している。前記鍵盤4−
フレーム1の前端部上下面には鍵10の上下方向の回動
範囲を設定する下限ストッパ22および上限ストッパ2
3が固着されている。この場合、第2図は押鍵操作によ
り鍵10の前端部下面が下限ストッパ22に当接した状
態を示し、後述する復帰用ばね25の力により鍵10が
回動復帰すると前記ストッパ20の当接面20aが上限
ストッパ23に下方より当接し、鍵10を初期位置に係
止するように構成さnている。また、鍵10を復帰用ば
ね25に抗して押鍵操作すると、該鍵10に一体に設け
られたアクチュエータ26が鍵盤フレーム1の裏面に固
定されている鍵スィッチ2Tを動作させ、しかして鍵1
0に対応した楽音を電気的に発生させるように構成され
ている。A substantially hook-shaped stopper 20 is integrally hung on the lower surface of the front end of the key 10 and extends downward from the lower surface 21 of the front end of the keyboard frame 1 n1. A lower limit stopper 22 and an upper limit stopper 2 are provided on the upper and lower surfaces of the front end of the keyboard 4-frame 1 to set the vertical rotation range of the key 10.
3 is fixed. In this case, FIG. 2 shows a state in which the lower surface of the front end of the key 10 comes into contact with the lower limit stopper 22 due to the key press operation, and when the key 10 returns to rotation due to the force of the return spring 25, which will be described later, the stopper 20 comes into contact. The contact surface 20a is configured to abut the upper limit stopper 23 from below and lock the key 10 in the initial position. Further, when the key 10 is pressed against the return spring 25, the actuator 26 provided integrally with the key 10 operates the key switch 2T fixed to the back surface of the keyboard frame 1, and the key 10 is pressed. 1
It is configured to electrically generate a musical tone corresponding to 0.
前記鍵10の内側面後端部寄りにはばね受は壁28が一
体に設けられ、とのばね受は壁28により前記復帰用ば
ね25の後端が係止されている。A wall 28 is integrally provided near the rear end of the inner surface of the key 10, and the rear end of the return spring 25 is locked by the wall 28 of the spring receiver.
一方、復帰用ばね25の前端は前記鍵盤フレーム1の上
面に設けられた係止部29によって係止されている。前
記復帰用げね25は適宜な板厚の金載板を打抜いて形成
した帯状の平板ばねからなシ、鍵10と鍵盤フレーム1
との間に座屈変形した状態で装着される。したがって、
復帰用ばね25は図に示す如く円弧状に座屈変形し、こ
の変形により生じる該ばね25の反力によって鍵10に
時計方向の回動習性を付与すると共に後方に付勢してい
る。なお、31は鍵盤フレーム1の前端に一体に設けら
れ鍵10の左右方向への回動を規制防止するキーガイド
、32は鍵10を重くして一般のピアノと同様の鍵タッ
チ感を得るために前記鍵10の前端部下面にガスケット
33を介して配設された重シである。On the other hand, the front end of the return spring 25 is locked by a locking portion 29 provided on the upper surface of the keyboard frame 1. The return spring 25 is a band-shaped flat spring formed by punching out a metal mounting plate of an appropriate thickness, and the key 10 and the keyboard frame 1 are
It is installed in a buckled state between the therefore,
The return spring 25 is buckled in an arc shape as shown in the figure, and the reaction force of the spring 25 generated by this deformation imparts a clockwise rotational habit to the key 10 and urges it backward. In addition, 31 is a key guide that is integrally provided at the front end of the keyboard frame 1 to restrict and prevent the key 10 from turning in the left and right direction, and 32 is a key guide that is used to make the key 10 heavier so as to obtain a key touch feeling similar to that of a general piano. This is a heavy case that is disposed on the lower surface of the front end of the key 10 via a gasket 33.
かくしてこのような構成からなる鍵盤装置によれば、支
持軸12によって鍵10を軸支しているので、安定かつ
円滑な鍵操作を行うことができる。According to the keyboard device having such a configuration, the key 10 is pivotally supported by the support shaft 12, so that stable and smooth key operations can be performed.
また、支持軸12は6鍵10それぞれに対して別個独立
に取付けられ、支持軸保持部材13の係止部17によっ
て保持されるものであるため、保合部14A 、 14
Bを前記係止部ITから抜き出せば、鍵10を他の鍵と
別個独立に支持軸保持部材13から外すことができ、−
鍵一軸方式を実現する。Further, since the support shaft 12 is attached to each of the six keys 10 separately and independently and is held by the locking portion 17 of the support shaft holding member 13, the retaining portions 14A, 14
If B is pulled out from the locking part IT, the key 10 can be removed from the support shaft holding member 13 separately and independently from other keys, and -
Realizes a single key system.
さらに、鍵10および支持軸保持部材13に対する支持
軸12の取付け、取外し作業も極めて簡単かつ容易であ
る。なお、鍵10は前述した通り復帰用ばね25によっ
て後方に付勢されているので、通常演奏時において支持
軸12が支持軸保持部材13から分離することがなく、
シたがって安定した押鍵操作を可能にする。また、支持
軸保持部材13の各支持壁15A 、 15B 、 1
5C・・・は鍵10の左右方向の移動を規制防止する機
能を備えている0
第4図はこの発明の他の実施例を示す要部分解斜視図で
ある。この実施例は支持軸12の両端面に直径方向の長
溝からなる係合部14A 、 14Bを設け、支持軸保
持部材13の各支持壁15A 、 15B・・・の両側
面に前記保合部14A 、 14Bに対応して突条体か
らなる係止部17を一体に突設したものである。この場
合、保合部14Aと14B間の寸法t!は鍵10の後端
部幅りとほぼ等しく、相対向する一対の係止部17と1
7との間隔L1 より若7−
千手さい。また支持軸12の全長L2は隣接する支持壁
15Aと15Bの間隔L3よシ僅かに小さい。Furthermore, attachment and detachment of the support shaft 12 to and from the key 10 and the support shaft holding member 13 are extremely simple and easy. In addition, since the key 10 is urged backward by the return spring 25 as described above, the support shaft 12 does not separate from the support shaft holding member 13 during normal playing.
Therefore, stable key press operation is possible. Moreover, each support wall 15A, 15B, 1 of the support shaft holding member 13
5C... has a function of restricting and preventing movement of the key 10 in the left and right direction. FIG. 4 is an exploded perspective view of main parts showing another embodiment of the present invention. In this embodiment, engaging portions 14A, 14B consisting of long grooves in the diametrical direction are provided on both end surfaces of the support shaft 12, and said retaining portions 14A are provided on both side surfaces of each support wall 15A, 15B, . . . of the support shaft holding member 13. , 14B, a locking portion 17 made of a protruding strip is integrally provided in a protruding manner. In this case, the dimension t! between the retaining portions 14A and 14B! is approximately equal to the width of the rear end of the key 10, and a pair of opposing locking portions 17 and 1
The interval L1 with 7 is younger than 7- Senju Sai. Further, the total length L2 of the support shaft 12 is slightly smaller than the distance L3 between the adjacent support walls 15A and 15B.
第5図はこの発明のさらに他の実施例を示す要部分解斜
視図である。この実施例は支持軸保持部材13を鍵盤フ
レーム1の切起こしによって形成された複数個の切起し
片50a 、 sob 、 50c 11・・によって
構成したもので、支持軸12の両端面に突条体からなる
保合部14A 、 14Bを設け、各切起し片50a
、 50b 、 50e・・・に長溝からなる係止W5
17を設けたものである。この場合、支持軸保持部材1
3は鍵盤フレーム1と一体構成されるため、部品点数の
削減が可能で組立作業性を一段と向上させることができ
る。FIG. 5 is an exploded perspective view of a main part showing still another embodiment of the present invention. In this embodiment, the support shaft holding member 13 is constituted by a plurality of cut and raised pieces 50a, sob, 50c, 11, etc. formed by cutting and raising the keyboard frame 1, and protrusions are provided on both end surfaces of the support shaft 12. Retaining parts 14A and 14B consisting of bodies are provided, and each cut and raised piece 50a
, 50b, 50e... are locking W5 consisting of long grooves.
17. In this case, the support shaft holding member 1
3 is integrally constructed with the keyboard frame 1, the number of parts can be reduced and assembly workability can be further improved.
なお、本実施例はいずれも保合部14A 、 14Bと
係止部17を水平方向に設けた場合について示したが、
この発明はこ詐に限らず垂直方向に設けられるものであ
ってもよいことは勿論である。Incidentally, in each of the present embodiments, the case where the retaining parts 14A, 14B and the locking part 17 are provided in the horizontal direction is shown.
Of course, the present invention is not limited to this configuration, and may be installed vertically.
以上説明したようにこの発明に係る電子楽器の鍵盤装置
は、鍵の軸受孔に挿入され該鍵を回動自8−
在に軸支する支持軸の両端面に保合部を突設し、この保
合部を鍵盤フレーム上に配設された支持軸保持部材の係
止部に係合させるように構成したので、鍵の動作が円滑
にして良好なタッチ感を得ることができる。tた、鍵お
よび支持軸保持部材に対する支持軸の取付け、取外し作
業が容易で、−鍵一軸方式を実現化し、組立て作業性を
飛躍的に向上させるなど、その効果は非常に大である。As explained above, the keyboard device for an electronic musical instrument according to the present invention includes retaining portions protruding from both end surfaces of the support shaft that is inserted into the bearing hole of the key and rotatably supports the key. Since this retaining portion is configured to engage with the locking portion of the support shaft holding member disposed on the keyboard frame, the keys can be operated smoothly and a good touch feeling can be obtained. In addition, the work of attaching and removing the support shaft to and from the key and support shaft holding member is easy, and the effects are very great, such as realizing a single key shaft system and dramatically improving assembly workability.
第1図は従来の鍵盤装置における支点構造の一例を示す
要部側面図、
第2図はこの発明に係る鍵盤装置の一実施例を示す断面
図、
第3図は同装置の要部分解斜視図、
第4図はこの発明の他の実施例を示す要部分解斜視図、
第5図はこの発明のさらに他の実施例を示す要部分解斜
視図である。
1・1・・鍵盤フレーム、10・・・・鍵、11〜
・・・・軸受孔、12・・・・支持軸、13・・・・支
持軸保持部材、14A 、 14B・・・・係合部、1
5A、15B、15cm嗜・拳支持壁、17e**e係
止部。
特許出願人 日本楽器製造株式会社
代理人山川政樹(ほか1名)
11−
()
672−Fig. 1 is a side view of a main part showing an example of a fulcrum structure in a conventional keyboard device, Fig. 2 is a sectional view showing an embodiment of a keyboard device according to the present invention, and Fig. 3 is an exploded perspective view of a main part of the same device. 4 is an exploded perspective view of a main part showing another embodiment of the present invention, and FIG. 5 is an exploded perspective view of a main part showing still another embodiment of the invention. 1.1...Keyboard frame, 10...Key, 11~...Bearing hole, 12...Support shaft, 13...Support shaft holding member, 14A, 14B...Response Joint, 1
5A, 15B, 15cm fist support wall, 17e**e locking part. Patent applicant Masaki Yamakawa (and 1 other person), agent of Nippon Gakki Mfg. Co., Ltd. 11- () 672-
Claims (1)
れぞれ設けられ前記鍵の後端部に設けられた軸受孔に相
対回製自在に挿入配置される支持軸と、この支持軸の前
記保合部が挿入される係止部を有して前記鍵盤フレーム
上に配設さする支持軸保持部材とを備えていることを特
徴とする電子楽器の鍵盤装置。A key disposed on a keyboard frame, a support shaft provided with retaining portions on both end surfaces and inserted into a bearing hole provided at the rear end of the key so as to be relatively rotatable, and this support shaft. A keyboard device for an electronic musical instrument, comprising: a support shaft holding member disposed on the keyboard frame and having a locking portion into which the holding portion is inserted.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58007956A JPS59133592A (en) | 1983-01-20 | 1983-01-20 | Keyboard of electronic musical instrument |
US06/571,913 US4604937A (en) | 1983-01-20 | 1984-01-17 | Keyboard device of electronic musical instrument |
KR1019840000244A KR910002807B1 (en) | 1983-01-20 | 1984-01-20 | Key board apparatus of electronic musical instrument |
US07/115,636 US4846041A (en) | 1983-01-20 | 1987-10-26 | Keyboard device of electronic musical instrument |
US07/644,402 US5090290A (en) | 1983-01-20 | 1991-01-22 | Keyboard device of electronic musical instrument |
US08/346,825 USRE35161E (en) | 1983-01-20 | 1994-11-30 | Keyboard device of electronic musical instrument |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58007956A JPS59133592A (en) | 1983-01-20 | 1983-01-20 | Keyboard of electronic musical instrument |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59133592A true JPS59133592A (en) | 1984-07-31 |
JPH0157353B2 JPH0157353B2 (en) | 1989-12-05 |
Family
ID=11679937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58007956A Granted JPS59133592A (en) | 1983-01-20 | 1983-01-20 | Keyboard of electronic musical instrument |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59133592A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0185898U (en) * | 1987-11-30 | 1989-06-07 | ||
JPH01162397U (en) * | 1988-04-28 | 1989-11-13 |
-
1983
- 1983-01-20 JP JP58007956A patent/JPS59133592A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0185898U (en) * | 1987-11-30 | 1989-06-07 | ||
JPH01162397U (en) * | 1988-04-28 | 1989-11-13 | ||
JPH0526634Y2 (en) * | 1988-04-28 | 1993-07-06 |
Also Published As
Publication number | Publication date |
---|---|
JPH0157353B2 (en) | 1989-12-05 |
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