CN101093664A - Key set of electronic piano - Google Patents
Key set of electronic piano Download PDFInfo
- Publication number
- CN101093664A CN101093664A CNA200710123595XA CN200710123595A CN101093664A CN 101093664 A CN101093664 A CN 101093664A CN A200710123595X A CNA200710123595X A CN A200710123595XA CN 200710123595 A CN200710123595 A CN 200710123595A CN 101093664 A CN101093664 A CN 101093664A
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- China
- Prior art keywords
- key
- ladder
- support frame
- lever arm
- electronic piano
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/32—Constructional details
- G10H1/34—Switch arrangements, e.g. keyboards or mechanical switches specially adapted for electrophonic musical instruments
- G10H1/344—Structural association with individual keys
- G10H1/346—Keys with an arrangement for simulating the feeling of a piano key, e.g. using counterweights, springs, cams
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Electrophonic Musical Instruments (AREA)
Abstract
A keyboard unit of electronic piano is prepared for setting three step structures in large support, arranging top support on the third step structure an bottom support under the first and the second step structures, setting white key and black key on large support and top support, connecting said keys with top support, passing the first and the second lever arms through jointed unit of the first and the second step structures as well as passing through bottom support, connecting two said arms separately to white and black keys, laying conductive glue on printed circuit being set under the second and the third step structures.
Description
Technical field
The present invention relates to musical instrument, be specifically related to a kind of key set of electronic piano and electronic piano keyboard.
Background technology
Along with improving constantly of quality of life, people are more and more higher to the requirement of electronic musical instrument quality, especially the feel of electronic piano keyboard is required also more and more highlyer, and existing electronic piano keyboard feel is compared with traditional fingerboard feel a certain distance is still arranged.Exist the principal element of feel gap to be that pressing down with resilience of pianotron key is difficult to control, resistance was excessive when some keys of keyboard pressed down, and too rapid during resilience, made finger produce constriction, and the player points when playing the musical instrument and is easy to fatigue; Some keys of keyboard presses down well, but resilience is slow excessively, and imperceptible tangible hammer sense is one of the most difficult problem of capturing of fender art of keypads to the control that presses down with resilience of pianotron key always.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of key set of electronic piano and electronic piano keyboard, and this electronic piano keyboard can be realized popular fingerboard feel true to nature, and the player more can be brought into full play.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:
A kind of key set of electronic piano comprises big support, upper support frame, lower support frame, Bai Jian, black key and conducting resinl, printed-wiring board (PWB), first lever arm and second lever arm; It is characterized in that: described big support contains the notch cuttype structure, described notch cuttype structure comprises first ladder, second ladder, the 3rd ladder that links to each other successively, upper support frame places on the 3rd ladder, lower support is placed on first ladder and second ladder below, Bai Jian and black key place on big support and the upper support frame and with upper support frame and link to each other, first lever arm and second lever arm pass the joint portion and the lower support frame of first ladder and second ladder, and link to each other with white key, black key respectively, conducting resinl spreads on the printed-wiring board (PWB), and places under second ladder and the 3rd ladder.
Described key set of electronic piano, wherein: extension board before first ladder connects, preceding extension board comprises the down tilt platform, the 3rd ladder connects extension board down.
Described key set of electronic piano, wherein: the last down tilt platform of preceding extension board is provided with the protruding component that supports white key, and second ladder is provided with the protruding component that supports black key.
Described key set of electronic piano, wherein: cap bag coats protruding component, and cap bag coats protruding component.
Described key set of electronic piano, wherein: upper support frame is provided with first boss and second boss, and first boss is inserted in the rear end of Bai Jian, and second boss is inserted in the rear end of black key.
Described key set of electronic piano, wherein: have first axis hole on first boss, the rear end of Bai Jian is provided with and the corresponding white key axle of first axis hole, white key axle passes first axis hole, first flexure strip passes first boss, one end of first flexure strip places in the first upper support frame draw-in groove, and its other end places in the white key draw-in groove of being located at the Bai Jian rear end; Have second axis hole on second boss, the rear end of black key is provided with and the corresponding black key axle of second axis hole, and the black key axle passes second axis hole, and second flexure strip passes second boss, one end of second flexure strip places in the second upper support frame draw-in groove, and its other end places in the black key draw-in groove of being located at the black key rear end.
Described key set of electronic piano, wherein: first lever arm connects the first lever weighting piece, and second lever arm connects the second lever weighting piece; The front end of first lever arm is provided with first rectangular channel, and the second lever arm front end is provided with second rectangular channel; The front end socket axle of first lever arm and second lever arm, axle passes lower support frame axis hole, and first lever arm and second lever arm sway.
Described key set of electronic piano, wherein: first cushion pad is set on second ladder, on the last down tilt platform of preceding extension board second cushion pad is set, the last down tilt platform below of preceding extension board is provided with the 3rd cushion pad, the edge that crosses that following extension board and upper support frame prolong plate is provided with the 4th cushion pad, and the lower edge of following extension board is provided with the 5th cushion pad.
Described key set of electronic piano, wherein: printed-wiring board (PWB) one end is stuck in the extension draw-in groove that is provided with on the lower support frame, and the other end is fixed in the key plate screw hole on the big support.
Recess in the Bai Jian rear end near white key draw-in groove, is provided with the roof pressure piece; The roof pressure piece places on the upper support frame.
Beneficial effect of the present invention is: the member easy accessibility, key set of electronic piano and electronic piano keyboard are keeped in repair easily, and member is relatively independent, and interchangeability is stronger, the reasonable Arrangement cushion pad makes the more approaching true piano feel of key set of electronic piano and electronic piano keyboard feel.
Description of drawings
The present invention includes following accompanying drawing:
Fig. 1 is a supporting structure synoptic diagram of the present invention;
Fig. 2 is a white-black key position view of the present invention;
Fig. 3 is a keyboard structure synoptic diagram of the present invention;
Fig. 4 is the white key off working state of a present invention synoptic diagram;
Fig. 5 is the white key working state schematic representation of the present invention;
Fig. 6 is a black key off working state synoptic diagram of the present invention;
Fig. 7 is a black key working state schematic representation of the present invention;
Fig. 8 is the present invention's first lever arm synoptic diagram and local enlarged diagram thereof.
Embodiment
With embodiment the present invention is described in further detail with reference to the accompanying drawings below:
The present invention is by the lot of data collecting test, emphasis gets down in the research of key feel problem, key speed changes the sense of touch of staff when having analyzed key and pressing down the change in resistance process of adversary in the process and resilience, analyzed the different opinion that everybody requires the key feel simultaneously, by the structural change of series, make the feel of electronic piano keyboard approach true piano feel more.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, shown in Figure 8, key set of electronic piano of the present invention comprises big support 1, upper support frame 2, lower support frame 3, Bai Jian 22, black key 23 and conducting resinl 41, printed-wiring board (PWB) 40, first lever arm 33 and second lever arm 34; Described big support 1 contains the notch cuttype structure, described notch cuttype structure comprises first ladder 4 that links to each other successively, second ladder 5, the 3rd ladder 6, upper support frame 2 places on the 3rd ladder 6, lower support frame 3 places first ladder 4 and second ladder, 5 belows, white key 22 and black key 23 place on big support 1 and the upper support frame 2 and with upper support frame 2 and link to each other, first lever arm 33 and second lever arm 34 pass the joint portion and the lower support frame 3 of first ladder 4 and second ladder 5, and respectively with white key 22, black key 23 links to each other, conducting resinl 41 spreads on the printed-wiring board (PWB) 40, and places under second ladder 5 and the 3rd ladder 6.Extension board 7 before first ladder 4 connects, preceding extension board 7 comprise that down tilt platform 46, the three ladders 6 connect extension board 8 down.The big support 1 of screw hole 9 and screw hole 9 ' be used for fixing is set respectively on preceding extension board 7 and following extension board 8.The last down tilt platform 46 of preceding extension board 7 is provided with protruding component 17, the second ladders 5 that support white key 22 and is provided with the protruding component 18 that supports black key 23.Cap bag 43 coats protruding component 17, and cap bag 44 coats protruding component 18.Upper support frame 2 be provided with first boss 19 and second boss 19 ', first boss 19 is inserted in the rear end of Bai Jian 22, the rear end of black key 23 be inserted in second boss 19 '.Have first axis hole 20 on first boss 19, the rear end of white key 22 is provided with and first axis hole, 20 corresponding white key axles 31, white key axle 31 passes first axis hole 20, first flexure strip 30 passes first boss 19, one end of first flexure strip 30 places in the first upper support frame draw-in groove 28, and its other end places in the white key draw-in groove 29 of being located at Bai Jian 22 rear ends; Second boss 19 ' on have second axis hole 20 ', the rear end of black key 23 be provided with second axis hole 20 ' corresponding black key axle 31 ', black key axle 31 ' pass second axis hole 20 ', second flexure strip 30 ' pass, second boss 19 ', second flexure strip 30 ' an end place the second upper support frame draw-in groove 28 ' in, its other end place the black key draw-in groove 29 of being located at black key 23 rear ends ' in.First flexure strip 30 and second flexure strip 30 ' play a part to support key, prevent to take off behind the key, can also produce bounce simultaneously, to offset the deadweight of part key; First axis hole 20 and second axis hole 20 ' open along the key direction, be convenient to the dismounting of key.
First lever arm, 33 connections, the first lever weighting piece, 35, the second lever arms, 34 connections, the second lever weighting piece 35 '; The front end that the front end of first lever arm 33 is provided with first rectangular channel, 39, the second lever arms 34 be provided with second rectangular channel 39 '; With lever weighting piece 35, form as one on the lever arm 33 by the injection moulding mode; Plastic cement front end upper surface is provided with a slope 36, the slope by chamfering and last 37 and lower platform 38 form tangent transition, rectangular channel 39 is used to lay in lubricating oil, guarantees that enough lubricating oil uses for a long time.Be provided with the soft rubber pad 42 of a band arc surface in key key pin 24 and the key key pin 26, play buffering and noise reduction effect, it cooperates rational motion state of formation with lever front end upper surface in motion process, guaranteed that feel is keeping very good in suppressing the process of key.The front end socket axle 45 of first lever arm 33 and second lever arm 34, axle 45 pass lower support frame axis hole 11, the first lever arms 33 and second lever arm 34 rotates around axle 45.Lever arm utilizes the effect of exerting pressure of black and white key key pin, swings back and forth in big support 1 around the stainless steel shaft 45 that is interspersed in 11 of lower support frame axis holes.Lever arm is supporting key key pin, because the deadweight effect of lever weighting piece, will inevitably make lever arm stressed toward the upper support key, make key that upwards movement tendency be arranged, because of being arranged at the white key extending pin 25 on the key key pin, black key extending pin 27 and the key pin cotton that is arranged on the big support front end are filled up 14 mutual roof pressures, force key to be subject to this, have guaranteed that key is in formation state when off working state.
Described conducting resinl 41 is arranged on the described PCB40, and PCB40 one holds row level with both hands and is stuck on the lower support frame 3 in the extension draw-in groove 21 that is provided with, and the other end is fixed in the key plate screw hole 10 on the big support 1 by screw.The conducting resinl both sides are provided with disjunctor boss 47, have guaranteed that conducting resinl is pressed between PCB40 and the big support 1 simultaneously, prevents displacement.
Recess in white key 22 rear ends near white key draw-in groove 29, is provided with roof pressure piece 48; Roof pressure piece 48 places on the upper support frame 2.
Under the off working state, the rubber blanket 42 that is provided with in the Bai Jianjian pin 24, with the rubber blankets 42 that are provided with in the black key key pin 26 ', rest on the upper mounting plate 37 of lever arm front end upper surface, both interconnect, because of the first lever weighting piece 35 and the second lever weighting piece 35 ' the deadweight effect, the lever arm front end will support white key 22 and black key 23 has up movement tendency, but because white key extending pin 25, black key extending pin 27 is forced in the support of the cotton pad 14 of key pin, can't do motion upwards, key remains static.Under certain external force effect, when pressing key, the rubber blanket 42 and the rubber blanket 42 ' pressurized that are arranged in the key key pin produce power, force lever arm and key generation relative motion; At this moment, key will rotate around the upper support frame central shaft hole, lever arm rotates around lower support frame central shaft hole 11 simultaneously, and the rubber blanket that be provided with in the white-black key key pin this moment will slide to lower platform 38 by upper mounting plate 37 along the slope 36 of lever arm front end upper surface setting, reach the limit of up to key.Back and forth movement like this, whole keyboard has formed the gear train of a system, because the deadweight effect of lever weighting piece, adding the ingenious of a series of transmission and lever arm and rubber blanket is equipped with, meeting generation one significantly is similar to the hammer sense of true piano in the motion process, finally feed back to the people on hand by the key face. meanwhile, the conducting resinl 41 that is arranged at below the key is also done back and forth movement under the drive of key, two carbon granules in the conducting resinl will successively touch on the carbon grid of PCB40, make the loop on the PCB40 form conducting state. keyboard system will carry out scanning software simultaneously, finally realizes piano tonequality true to nature.
Those skilled in the art do not break away from essence of the present invention and spirit, can there be the various deformation scheme to realize the present invention, the above only is the preferable feasible embodiment of the present invention, be not so limit to interest field of the present invention, the equivalent structure that all utilizations instructions of the present invention and accompanying drawing content are done changes, and all is contained within the interest field of the present invention.
Claims (10)
1, a kind of key set of electronic piano comprises big support (1), upper support frame (2), lower support frame (3), Bai Jian (22), black key (23) and conducting resinl (41), printed-wiring board (PWB) (40), first lever arm (33) and second lever arm (34); It is characterized in that: described big support (1) contains the notch cuttype structure, described notch cuttype structure comprises first ladder (4) that links to each other successively, second ladder (5), the 3rd ladder (6), upper support frame (2) places on the 3rd ladder (6), lower support frame (3) places first ladder (4) and second ladder (5) below, Bai Jian (22) places big support (1) upward and with upper support frame (2) to link to each other with upper support frame (2) with black key (23), first lever arm (33) and second lever arm (34) pass the joint portion and the lower support frame (3) of first ladder (4) and second ladder (5), and respectively with white key (22), black key (23) links to each other, conducting resinl (41) spreads on the printed-wiring board (PWB) (40), and places under second ladder (5) and the 3rd ladder (6).
2, key set of electronic piano according to claim 1 is characterized in that: extension board (7) before first ladder (4) connects, and preceding extension board (7) comprises down tilt platform (46), the 3rd ladder (6) connects extension board (8) down.
3, key set of electronic piano according to claim 2, it is characterized in that: the last down tilt platform (46) of preceding extension board (7) is provided with the protruding component (17) that supports white key (22), and second ladder (5) is provided with the protruding component (18) that supports black key (23).
4, key set of electronic piano according to claim 3 is characterized in that: cap bag (43) coats protruding component (17), and cap bag (44) coats protruding component (18).
5, key set of electronic piano according to claim 4, it is characterized in that: upper support frame (2) is provided with first boss (19) and second boss (19 '), first boss (19) is inserted in the rear end of Bai Jian (22), and second boss (19 ') is inserted in the rear end of black key (23).
6, key set of electronic piano according to claim 5, it is characterized in that: have first axis hole (20) on first boss (19), the rear end of Bai Jian (22) is provided with and the corresponding white key axle (31) of first axis hole (20), white key axle (31) passes first axis hole (20), first flexure strip (30) passes first boss (19), one end of first flexure strip (30) places in the first upper support frame draw-in groove (28), and its other end places in the white key draw-in groove (29) of being located at Bai Jian (22) rear end; Have second axis hole (20 ') on second boss (19 '), the rear end of black key (23) is provided with and the corresponding black key axle (31 ') of second axis hole (20 '), black key axle (31 ') passes second axis hole (20 '), second flexure strip (30 ') passes second boss (19 '), one end of second flexure strip (30 ') places in the second upper support frame draw-in groove (28 '), and its other end places in the black key draw-in groove (29 ') of being located at black key (23) rear end.
7, key set of electronic piano according to claim 6 is characterized in that: first lever arm (33) connects the first lever weighting piece (35), and second lever arm (34) connects the second lever weighting piece (35 '); The front end of first lever arm (33) is provided with first rectangular channel (39), and the front end of second lever arm (34) is provided with second rectangular channel (39 '); The front end socket axle (45) of first lever arm (33) and second lever arm (34), axle (45) passes lower support frame axis hole (11), and first lever arm (33) and second lever arm (34) rotate around axle (45).
8, key set of electronic piano according to claim 7, it is characterized in that: first cushion pad (12) is set on second ladder (5), on the last down tilt platform (46) of preceding extension board (7) second cushion pad (13) is set, last down tilt platform (46) below of preceding extension board (7) is provided with the 3rd cushion pad (14), following extension board (8) is provided with the 4th cushion pad (15) with the edge that crosses that upper support frame prolongs plate (32), and the lower edge of following extension board (8) is provided with the 5th cushion pad (16).
9, key set of electronic piano according to claim 8 is characterized in that: printed-wiring board (PWB) (40) one ends are stuck in the extension draw-in groove (21) that lower support frame (3) go up to be provided with, and the other end is fixed in the key plate screw hole (10) on the big support (1).
10, key set of electronic piano according to claim 1 is characterized in that: recess in Bai Jian (22) rear end near white key draw-in groove (29), is provided with roof pressure piece (48); Roof pressure piece (48) places on the upper support frame (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710123595XA CN101093664A (en) | 2007-04-06 | 2007-07-04 | Key set of electronic piano |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200720119341 | 2007-04-06 | ||
| CN200720119341.6 | 2007-04-06 | ||
| CNA200710123595XA CN101093664A (en) | 2007-04-06 | 2007-07-04 | Key set of electronic piano |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101093664A true CN101093664A (en) | 2007-12-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200710123595XA Pending CN101093664A (en) | 2007-04-06 | 2007-07-04 | Key set of electronic piano |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101093664A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606368A (en) * | 2013-10-31 | 2014-02-26 | 北京珠江钢琴制造有限公司 | Reinforcing device of piano key press baffle |
| CN103956158A (en) * | 2014-04-16 | 2014-07-30 | 张文革 | Electric piano key transmission device |
| CN106098041A (en) * | 2011-09-28 | 2016-11-09 | 株式会社河合乐器制作所 | Key board unit for electric keyboard instrument and the mounting structure of the release transmission member for electric keyboard instrument |
| CN108288462A (en) * | 2017-01-10 | 2018-07-17 | 卡西欧计算机株式会社 | Key board unit and keyboard instrument |
| CN108648726A (en) * | 2018-05-30 | 2018-10-12 | 张建阳 | A kind of key has the fingerboard of position-limit mechanism |
-
2007
- 2007-07-04 CN CNA200710123595XA patent/CN101093664A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098041A (en) * | 2011-09-28 | 2016-11-09 | 株式会社河合乐器制作所 | Key board unit for electric keyboard instrument and the mounting structure of the release transmission member for electric keyboard instrument |
| CN103606368A (en) * | 2013-10-31 | 2014-02-26 | 北京珠江钢琴制造有限公司 | Reinforcing device of piano key press baffle |
| CN103606368B (en) * | 2013-10-31 | 2016-03-16 | 北京珠江钢琴制造有限公司 | A kind of bracing means of piano pressure key shelves |
| CN103956158A (en) * | 2014-04-16 | 2014-07-30 | 张文革 | Electric piano key transmission device |
| CN103956158B (en) * | 2014-04-16 | 2016-11-16 | 张文革 | A kind of fender key actuating device |
| CN108288462A (en) * | 2017-01-10 | 2018-07-17 | 卡西欧计算机株式会社 | Key board unit and keyboard instrument |
| CN108648726A (en) * | 2018-05-30 | 2018-10-12 | 张建阳 | A kind of key has the fingerboard of position-limit mechanism |
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| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20071226 |
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| C20 | Patent right or utility model deemed to be abandoned or is abandoned |