CN103594069B

CN103594069B - Synergic piano

Info

Publication number: CN103594069B
Application number: CN201310508722.3A
Authority: CN
Inventors: 程生宝
Original assignee: 程生宝
Current assignee: Yangzhou University
Priority date: 2013-10-25
Filing date: 2013-10-25
Publication date: 2016-06-22
Anticipated expiration: 2033-10-25
Also published as: CN103594069A

Abstract

The present invention and a kind of musical instrument, i.e. a kind of synergic piano, including base plate (1), bridge (3), peg (4), string (2) and key (6), it is characterized in: the height A >=20mm of described bridge (3)。The invention has the beneficial effects as follows: by optimum structural parameter, piano sound effect is obviously enhanced。In addition set up multiple bullet and draw parts, while keeping piano sound characteristic, dissolve in multiple different music factor, produce to instrumental ensemble the effect of sympathetic response, make tradition piano create revolutionary progress。

Description

Synergic piano

Technical field

The present invention relates to a kind of musical instrument, i.e. a kind of synergic piano。

Background technology

Piano drives hammer impact string to send sound equipment by pressing key。Wherein, string is to be strained on base plate by the qin axle at two ends, and base plate is made of cast iron more, also referred to as cast iron plate or steel plate。Be provided with the bridge that section is triangle between string and base plate, triangle one side under, an angle upward, string rest the head on herein above, so bridge is also referred to as capotasto。I am found by great many of experiments, when the height of bridge and hammer are raised to extreme higher position, hammer hit the string point vertical dimension to string and the ratio of the vertical dimension of hammer lowest point to backplate surface, piano sound is had obvious impact。At present, the bridge height of upright piano is can support string for degree, all at below 15mm, with 10mm for common。And hammer is to distance and the hammer of string to base plate ratio of distances constant, and the relation between piano sound effect, not yet drawing attention, its relevant parameter mainly determine by the size of each connection member, there is no and determines that the theory of size proposes according to acoustics。Therefore, inquiring into the acoustic relation of said structure data and piano, the acoustics for improving piano has great importance。Additionally, the sound equipment of existing piano is more single, if keeping while piano sound characteristic, the sound equipment factor of other musical instruments can be increased, particularly draws musical instrument to combine on bullet traditional with motherland for piano, produce the effect instrumental ensembled, should be one of direction of developing of piano。

Summary of the invention

It is an object of the invention to provide a kind of better piano of acoustics。

It is a further object of the present invention to provide one and can keep piano sound characteristic, other bullets can be increased again and draw the sound equipment composition of musical instrument, there is the piano instrumental ensembling effect。

Above-mentioned purpose is realized by techniques below scheme: develops a kind of high tone quality upright piano, including base plate, bridge, peg, string and key, is characterized in: the height A >=20mm of described bridge。

The height A=20-50mm of described bridge。

Described hammer to the ratio of the distance C and the distance B of hammer to base plate of string, namely C: B=0.616-0620: 1。

Described hammer to the ratio of the distance C and the distance B of hammer to base plate of string, namely C: B==0.618。

The accordatura depression bar being mounted below stretching, extension downwards of the key of described piano, the lower end of depression bar is accordatura plate, and the lower section of accordatura plate draws string relative with bullet, and what bullet drew string is arranged below the bullet drawstring drawing string perpendicular with bullet or intersecting。

Described bullet draws string to include high pitch, middle pitch, bass three kinds, every kind minimum one, and each bullet draws string all relative with the accordatura plate of the accordatura depression bar below a key；Described bullet drawstring shape such as conveyer belt, there are the drive support being arranged in piano frame, one of them drive and actuating unit phase transmission in two ends；Described bullet drawstring is to draw vocal cores or/and be play vocal cores or/and tone dialing band, and wherein: draw vocal cores to have the many silk threads being coiled on two drives, bullet draws string to contact with drawing vocal cores when being pressed under accordatura plate；Described bullet vocal cores (19) has the soft lath being looped around on two drives, is provided with multiple overhanging elastic claw outside lath, and bullet draws string to contact with elastic claw when being pressed under accordatura plate；Described tone dialing, with the soft lath being looped around on two drives, is provided with overhanging moving tooth outside lath, can streak each bar bullet and draw string when moving tooth moves。

It is provided with clutch between drive and the drive drawing vocal cores or bullet vocal cores of described tone dialing band。

Described actuating unit is toggle, and its small end is hinged in crossbeam, and crossbeam is connected with the slide bar erect, and slide bar matches with the sliding sleeve in frame, and slide bar is cased with return spring, and crossbeam is positioned at the lower section of each key。

Described actuating unit is toggle, and the lower end of its connecting rod is drawn mutually with pedal。

Described actuating unit is micromachine。

The invention has the beneficial effects as follows: by optimum structural parameter, piano sound effect is obviously enhanced。In addition set up multiple bullet and draw parts, while keeping piano sound characteristic, dissolve in multiple different music factor, produce to instrumental ensemble the effect of sympathetic response, make tradition piano create revolutionary progress。

Accompanying drawing explanation

Fig. 1 is the partial front elevation view of the first embodiment；

Fig. 2 is the partial front elevation view of the second embodiment；

Fig. 3 is the partial front elevation view of the third embodiment；

Fig. 4 is the partial top view of the third embodiment；

Fig. 5 is the front view of the parts key of the third embodiment；

Fig. 6 is the left view of the parts key of the third embodiment；

Fig. 7 is the front view of the parts bullet drawstring of the third embodiment and actuating device thereof；

Fig. 8 is the top view of the parts bullet drawstring of the third embodiment and actuating device thereof；

Fig. 9 is the front view of the parts bullet drawstring of the 4th kind of embodiment and actuating device thereof；

Figure 10 is the top view that the parts bullet drawstring of the 5th kind of embodiment and bullet draw string；

Figure 11 is the top view that the parts bullet drawstring of the 6th kind of embodiment and bullet draw string。

In figure visible: base plate 1, string 2, bridge 3, peg 4, hammer 5, key 6, accordatura depression bar 7, bullet draws string 8, connecting rod 9, driving gear 10, plays drawstring 11, accordatura plate 12, crossbeam 13, slide bar 14, sliding sleeve 15, return spring 16, drive 17, draw vocal cores 18, play vocal cores 19, elastic claw 20, pedal 21, micromachine 22, tone dialing band 23, moving tooth 24, clutch 25。

Detailed description of the invention

The total design of the present invention is the height improving existing bridge, increases bullet and draws the parts of musical instrument, improves the acoustics of piano。Six kinds of embodiments are introduced below in conjunction with accompanying drawing:

The first embodiment: Fig. 1 is the partial structurtes sketch of upright piano。In figure visible: base plate 1 has drawn string 2 above with peg 4, has a bridge 3 between string 2 and base plate 1, and the section of bridge 3 is triangular in shape, and a bottom surface of triangle is seated the upper surface of base plate 1, and the upper angle of triangle is pressed with string 2。With bottom surface that triangle engages with base plate 1 for benchmark, to triangle, the vertical dimension at angle is the height of bridge 3。Experimental results demonstrate: during the height=A >=20mm of bridge 3, namely the height 10-15mm of the existing piano bridge of ratio improves 5-10mm, and acoustics significantly improves。The height of bridge 3, between 20-60mm, all can receive the acoustics of optimization。

The second embodiment: as in figure 2 it is shown, hammer 5 is to the distance B of base plate 1 and hammer 5 to the ratio of the distance C of string 2, has the acoustics of piano and has a certain impact。Experimental results demonstrate: when C: B=0.616-0.620: 1, acoustics has general cognizable improvement。Optimal values at this interval hammer to the ratio of the distance B and the distance C of hammer to string of base plate infinitely approaches famous golden section point, and namely C: B=0.618: 1, its acoustics optimizes the most。

The third embodiment: Fig. 3 Fig. 4 describes a kind of bullet of setting up on existing upright piano and draws the Novel piano of parts。In figure visible, piano also has base plate 1, string 2 and bridge 3, and key 6 is arranged above hammer 5 parts such as grade, and this is the same with common piano。The difference is that: the accordatura depression bar 7 being mounted below stretching, extension downwards of the key 6 of piano。Visible in conjunction with Fig. 5 Fig. 6, the lower end of accordatura depression bar 7 is provided with accordatura plate 12。All draw string 8 relative with a bullet below each accordatura plate 12。Bullet draws being arranged below of string 8 to play drawstring 11, and the bearing of trend of bullet drawstring 11 draws string 8 perpendicular with bullet or has and intersects。Here bullet draws string 8 to have high pitch, middle pitch, bass three kinds, every kind minimum one, draws three in figure, represents high, normal, basic three bullets respectively and draws string 8。Each bullet draws string 8 all relative with the accordatura plate 12 of the accordatura depression bar 7 below the key 6 in an identical range of sound。Here bullet drawstring 11 shape such as conveyer belt, two ends have drive 17 to support, and the rotating shaft of drive 17 is arranged in the frame of piano, one of them drive 17 and actuating unit phase transmission。Certainly, the form of drive mechanism has multiple, and the actuating unit enumerated here is a kind of toggle。As it can be seen, the upper end of connecting rod 9 is hinged in crossbeam 13, crossbeam 13 is connected with the slide bar 14 erect, and slide bar 14 is slidably matched with the sliding sleeve 15 in piano frame, and slide bar 14 is cased with return spring 15, and crossbeam 13 is positioned at below each key 6。Here bullet drawstring 11 includes drawing vocal cores 18 and playing vocal cores 19。Drawstring 18 therein is the many filaments being coiled on two drives 17, and it functions as the bowstring of urheen, and bullet draws string 8 can contact with drawing vocal cores 18 when 12 times pressures of accordatura plate。Playing vocal cores 19 and have the soft lath being looped around on two drives 17, be provided with multiple overhanging elastic claw 20 outside lath, bullet draws string 8 can contact with elastic claw 20 when 12 times pressures of accordatura plate。

During work, when player is by next key 6, key 6 will oppress crossbeam 13 and slide bar 14 overcomes the support force of return spring 16 to fall along sliding sleeve 15, crossbeam 13 connecting rod 9 below will promote driving gear 10 to rotate, and being driven drive 17 to rotate by driving gear 10, drive 17 band is moved drawstring 11 translation。Meanwhile, accordatura depression bar 7 and the accordatura plate 12 of end below key 6 are descending, oppress identical with the range of sound of this key 6 or one group of bullet draws string 8 to fall, make bullet draw string 8 to contact with the bullet drawstring 11 of translation。Wherein, when bullet draw string 8 with draw vocal cores 18 contact time can send the sound equipment of bowed instrument。When bullet draws string 8 to contact with the elastic claw 20 played on vocal cores 19, elastic claw 20 will hit bullet successively and draw string 8, and sends the sound equipment played。When key 6 lifts, crossbeam 13 under the promotion of return spring 16 on move, prepare next process。

It is demonstrated experimentally that during this piano performance, the effect of existing piano performance, there is again bullet to draw dubbing of musical instrument, it is very unique that it instrumental ensembles effect。

4th kind of embodiment: this piano is also set up bullet on existing upright piano to draw parts, as bullet draws string 8 and plays drawstring 11, its actuating unit is also to be a kind of toggle, with the third embodiment difference as shown in Figure 9: its connecting rod 9 is that the eccentric shaft from driving gear 10 downwardly extends, and its lower end is drawn with pedal 21 phase。During use, operator's foot pedal 21, can move drawstring 11 translation by band, and draw string 8 to carry out frictional impact with bullet, send bullet and draw the sound equipment of musical instrument。Obviously, this structure can omit the parts such as the crossbeam in the third embodiment, slide bar, sliding sleeve and return spring。Structure is greatly simplified, and can alleviate exerting oneself of button。But also can strengthen the burden of operator foot simultaneously, the coordination ability of operator's trick is also had certain requirement。But, this problem is also not difficult to solve, because the right crus of diaphragm of the operator of existing piano needs to control three pieces of pedals below piano, and left foot is in idle state more, thus available left foot operates the pedal 21 of the crank connecting link newly increased。Additionally, in order to reduce the requirement to operator's hand-foot coordination, the gear ratio between the driving gear of toggle and drive 17 can be strengthened, even if the frequency of left foot action is very slow, plays drawstring 11 and also can continual operate。

5th kind of embodiment: as shown in Figure 10, the actuating unit playing drawstring 11 is a micromachine 22, it is possible to band is moved the lasting rotation of drawstring 11, thus eliminating manpower burden, plays convenient。

6th kind of embodiment: as shown in figure 11, plays drawstring 11 except drawing vocal cores 18 and playing vocal cores 19, also has a kind of tone dialing band 23。Tone dialing band 23 is similar with playing vocal cores 19, also has the soft lath being looped around on two drives 17。The difference is that: being provided with multiple overhanging moving tooth 24 outside lath, the quantity of moving tooth 24 is less than elastic claw 20, and length ratio elastic claw 20 is longer, even if bullet draws string 8 to be in a high position, it is also possible to arrived by moving tooth 24 strokes。Moving tooth 24 streaks each bullet and draws string 8, can send and be similar to seven-stringed plucked instrument in some ways similar to the zither and draw the sound equipment of string。Owing in performance, the sound equipment of this stroke of string can not be commonly used, thus the quantity of moving tooth 24 is little, and interval is bigger。Additionally, tone dialing is provided with clutch 25 with between drive and the drive 17 drawing vocal cores 18 or bullet vocal cores 19 of 23, the not used time, it is possible to cut off contact, tone dialing band 23 is with drawing vocal cores 18 or bullet vocal cores 19 to move。When needing to draw string, controlled clutch 25 makes it engage, and can send the acoustics drawing string。This clutch 25 can adopt fork type, and its fork handle is controlled by the knee of operator, also more convenient。As shown in figure 11, drawing string 8 to be preferably formed with this tone dialing with 23 bullets coordinated branched, the effect of paddling can be better。

Claims

1. a synergic piano, including base plate (1), string (2), bridge (3), peg (4), hammer (5) and key (6), it is characterized in that: the height A >=20mm of described bridge (3), described hammer (5) is to distance C and the hammer (5) of string (2) to the ratio of the distance B of base plate (1), i.e. C:B=0.616 0.620:1, the accordatura depression bar (7) being mounted below stretching, extension downwards of the key (6) of described piano, the lower end of accordatura depression bar (7) is accordatura plate (12), the lower section of accordatura plate (12) draws string (8) relative with bullet, what bullet drew string (8) is arranged below the bullet drawstring (11) drawing string (8) perpendicular with bullet or intersecting。

2. synergic piano according to claim 1, it is characterised in that: the height A=20 50mm of described bridge (3)。

3. synergic piano according to claim 1, it is characterised in that: described hammer (5) is to distance C and the hammer (5) of string (2) to the ratio of the distance B of base plate (1), i.e. C:B=0.618:1。

4. synergic piano according to claim 1, it is characterized in that: described bullet draws string (8) to include high pitch, middle pitch, bass three kinds, every kind minimum one, each bullet draws string (8) all relative with the accordatura plate (12) of the following accordatura depression bar (7) of a key (6)；Described bullet drawstring (11) shape such as conveyer belt, there are drive (17) support being arranged in piano frame, one of them drive (17) and actuating unit phase transmission in two ends；Described bullet drawstring (11) is to draw vocal cores (18) or/and be play vocal cores (19) or/and tone dialing band (23), wherein: draw vocal cores (18) to have the many silk threads being coiled on two drives (17), contact with drawing vocal cores (18) when bullet draws string (8) to be pressed down by accordatura plate (12)；Described bullet vocal cores (19) has the soft lath being looped around on two drives (17), being provided with multiple overhanging elastic claw (20) outside lath, bullet draws string (8) to contact with elastic claw (20) when being pressed down by accordatura plate (12)；Described tone dialing band (23) has the soft lath being looped around on two drives (17), is provided with overhanging moving tooth (24) outside lath, and moving tooth (24) can streak each bar bullet time mobile and draw string (8)。

5. synergic piano according to claim 4, it is characterised in that: it is provided with clutch (25) between drive (17) and the drive (17) drawing vocal cores (18) or bullet vocal cores (19) of described tone dialing band (23)。

6. synergic piano according to claim 4, it is characterized in that: described actuating unit is crank connecting link (9) mechanism, its connecting rod (9) upper end is hinged in crossbeam (13), crossbeam (13) is connected with the slide bar (14) erect, slide bar (14) matches with the sliding sleeve (15) in frame, being cased with return spring (16) on slide bar (14), crossbeam (13) is positioned at the lower section of each key (6)。

7. synergic piano according to claim 4, it is characterised in that: described actuating unit is crank connecting link (9) mechanism, and the lower end of its connecting rod (9) is drawn mutually with pedal (21)。

8. synergic piano according to claim 4, it is characterised in that: described actuating unit is micromachine (22)。