CN212032626U

CN212032626U - Piano sound source integrated system

Info

Publication number: CN212032626U
Application number: CN202020646120.XU
Authority: CN
Inventors: 何宝祥
Original assignee: Zhejiang Carol Piano Manufacturing Co ltd
Current assignee: Zhejiang Carol Piano Manufacturing Co ltd
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2020-11-27
Anticipated expiration: 2030-04-24

Abstract

The utility model discloses a piano sound source integrated system, including back of the body frame, back of the body frame supports whole sound source, back of the body frame rear end edge department sets up the arc notch, the arc notch is followed back of the body frame edge extend and with back of the body frame edge bending degree matches, back of the body frame top edge is fixed and is equipped with back of the body circle, well back of the body circle, last back of the body circle down, and the supreme range in proper order is down followed to the three, down back of the body circle with the veneer has the lower part soundboard between the well back of the body circle, well back of the body circle with the veneer has the middle part soundboard between the last back of the body circle, it has by the upper portion soundboard to go up back of the body circle top veneer, the lower part soundboard is kept away from back of. Has the advantages that: the middle part soundboard can not contact with crossbeam and the preceding soundboard frame of back of the body frame lower extreme, can not receive when the middle part soundboard vibrates and block the restriction, therefore make the tone quality effect of vibration transmission better, piano also better.

Description

Piano sound source integrated system

Technical Field

The utility model relates to a piano resonance device technical field particularly, relates to a piano sound source integrated system.

Background

At present, various grand pianos adopt the soundboard and carry the frame closely the fixed mounting means of veneer all around to play the effect fixed with the support soundboard, but well high sound code bridge afterbody and low sound code bridge are nearer apart from carrying the frame, and here soundboard tension is great, has tied the vibration of soundboard, and it is relatively poor to lead to the soundboard to vibrate the effect, therefore piano tone quality is relatively poor, in sum, how can moreover, the individual layer soundboard is in addition vibrate the transmission performance poor, the sympathetic response effect is poor not enough.

The technical problem which needs to be solved at present is to provide a piano sound source integrated system.

SUMMERY OF THE UTILITY MODEL

The technical task of the utility model is to above not enough, provide a piano sound source integrated system, solve the problem that the background art mentioned.

The technical scheme of the utility model is realized like this:

a piano sound source integrated system comprises a back frame, wherein the back frame supports the whole sound source, an arc-shaped notch is formed in the edge of the back frame rear end, the arc-shaped notch extends along the edge of the back frame and is matched with the bending degree of the back frame edge, a lower back frame ring, a middle back frame ring and an upper back frame ring are fixedly arranged at the edge of the back frame upper side, the lower back frame ring, the middle back frame ring and the upper back frame ring are sequentially arranged from bottom to top, a lower sound board is glued between the lower back frame ring and the middle back frame ring, a middle sound board is glued between the middle back frame ring and the upper back frame ring, an upper sound board is glued at the top of the upper back frame ring, a front sound board frame is arranged at one side of the lower sound board, which is far away from the lower back frame ring, the front sound board is glued and fixed with a cross beam of the back frame, middle part soundboard with it is fixed with a plurality of second stall bar to glue between the upper portion soundboard, the upper portion soundboard is kept away from middle part soundboard one side is equipped with well high sound bridge and low sound bridge.

Preferably, the contact surfaces of the lower back frame ring, the middle back frame ring, the upper back frame ring, the lower sound board, the middle sound board and the upper sound board are all flat.

Preferably, the middle back frame ring and the front sound board frame are both provided with grooves, and two ends of the first rib are embedded into the grooves respectively.

Preferably, the lower sound board and the middle sound board are the same in length, the middle sound board is shorter than the upper sound board, and the middle sound board is not in contact with the front sound board frame.

Preferably, the bottom edge of the upper sound board is close to one side of the arc-shaped notch, a piece of hardwood cross rib is glued to one side of the arc-shaped notch, the shape of the hardwood cross rib is matched with the arc-shaped notch, the hardwood cross rib is located on the same side of the upper sound board, one end of the second rib penetrates through the hardwood cross rib and then is tightly glued with the upper sound board, and the end head of the second rib is flush with the edge of the upper sound board.

Preferably, the arc length of the arc-shaped notch is 500-1000 mm, and the depth is 5-30 mm. The distance between the edge of the rear end of the frame of the back frame and the lower soundboard is 3-10 mm.

Preferably, the lower sound board, the middle sound board and the upper sound board are all made of picea spruce wood.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

1. the middle part soundboard can not contact with crossbeam and the preceding soundboard frame of back of the body frame lower extreme, can not receive when the middle part soundboard vibrates and block the restriction, therefore make the tone quality effect of vibration transmission better, piano also better.

2. The hardwood horizontal rib wood can stabilize the resonance disc, improve the strength and tension of the resonance disc after the chord is stretched, so that the middle and low tones can emit perfectly long tones, and the piano can generate more perfectly low tones and pure tone quality effects.

3. Middle part soundboard rear end edge breaks away from with back of the body frame, has reduced the resistance and the energy loss of back of the body frame to middle part soundboard, has improved the amplitude of middle part soundboard, has prolonged the vibration time of middle part soundboard to make the piano produce more muddy bass, obtain more pure tone quality effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic top view of an embodiment of the present invention;

fig. 2 is a schematic side view of an internal structure according to an embodiment of the present invention.

In the figure:

1. a back frame; 2. a lower back frame ring; 3. a middle back frame ring; 4. an upper back frame ring; 5. a lower soundboard; 6. a middle soundboard; 7. an upper soundboard; 8. a first rib; 9. a second rib wood; 10. a front sound panel frame; 11. an arc-shaped notch; 12. a medium-high code bridge; 13. a bass code bridge; 14. hardwood cross-rib wood.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

The invention will be further explained with reference to the drawings and the specific embodiments.

In the first embodiment, as shown in fig. 1-2, a piano sound source integrated system according to an embodiment of the present invention includes a back frame 1, the back frame 1 supports the whole sound source, an arc-shaped notch 11 is formed at the rear end edge of the back frame 1, the arc-shaped notch 11 extends along the edge of the back frame 1 and matches the bending degree of the edge of the back frame 1, a lower back frame ring 2, a middle back frame ring 3, and an upper back frame ring 4 are fixed at the upper edge of the back frame 1, and are arranged from bottom to top in sequence, a lower sound board 5 is glued between the lower back frame ring 2 and the middle back frame ring 3, a middle sound board 6 is glued between the middle back frame ring 3 and the upper back frame ring 4, an upper sound board 7 is glued at the top of the upper back frame ring 4, a front sound board frame 10 is arranged on the side of the lower sound board 5 away from the lower back frame ring 2, preceding sound board frame 10 with back of the body frame 1's crossbeam veneer is fixed, lower part soundboard 5 with the veneer is fixed with the first rib of a plurality of 8 between the middle part soundboard 6, middle part soundboard 6 with the veneer is fixed with a plurality of second rib 9 between the upper portion soundboard 7, upper portion soundboard 7 is kept away from middle part soundboard 6 one side is equipped with well high-sound bridge 12 and bass bridge 13.

In the second embodiment, as shown in fig. 2, the contact surfaces of the lower back frame ring 2, the middle back frame ring 3, the upper back frame ring 4, the lower tone plate 5, the middle tone plate 6, and the upper tone plate 7 are all flat.

In the third embodiment, as shown in fig. 2, grooves are formed in both the middle back frame ring 3 and the front sound board frame 10, both ends of the first rib 8 are respectively embedded into the grooves, the length of the lower sound board 5 is the same as that of the middle sound board 6, the length of the middle sound board 6 is smaller than that of the upper sound board 7, and the middle sound board 6 is not in contact with the front sound board frame 10.

In a fourth embodiment, as shown in fig. 1, the upper tone plate 7 has a bottom edge adjacent to the arcuate slot 11 and glued thereto a hardwood cross rib 14, the hardwood cross rib 14 being shaped to match the arcuate slot 11 and being located on the same side of the upper tone plate 7 as the second rib 9, one end of the second rib 9 passing through the hardwood cross rib 14 being glued tightly to the upper tone plate 7, and the end of the second rib 9 being flush with the edge of the upper tone plate 7.

In the fifth embodiment, as shown in fig. 1, the arc length of the arc-shaped notch 11 is 500-1000 mm, and the depth is 5-30 mm. The distance between the edge of the rear end of the back frame 1 and the lower sound board 5 is 3-10 mm, and the lower sound board 5, the middle sound board 6 and the upper sound board 7 are all made of Picea occidentalis wood.

For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.

In practical application, the lower back frame ring 2, the middle back frame ring 3, the upper back frame ring 4, the lower sound board 5, the middle sound board 6, the upper sound board 7, the first rib wood 8, the second rib wood 9, the front sound board frame 10, the middle-high code bridge 12, the low-sound code bridge 13 and the hardwood transverse rib wood 14 jointly form a sounding resonance body, the resonance body is tightly glued with the periphery of the back frame 1, the edge of the rear end of the middle sound board 6 is separated from the back frame 1, the resistance and the energy loss of the back frame 1 to the middle sound board 6 are reduced, the amplitude of the middle sound board 6 is improved, the vibration time of the middle sound board 6 is prolonged, the piano generates more perfectly-thick bass, a more pure tone quality effect is obtained, meanwhile, the middle sound board 6 cannot be contacted with the cross beam at the lower end of the back frame 1 and the front sound board frame 10, and the sound boards cannot be limited by blocking during vibration, so that the, The piano has better tone quality effect; the contact surface of second rib 9 and upper portion soundboard 7 and middle part soundboard 6 is the plane, and second rib 9 just closely laminates with two-layer soundboard like this, also can strengthen the holistic stability of double-deck soundboard, is favorable to improving vibration transmission effect. Simultaneously, such double-deck soundboard structure forms a plurality of cavity between adjacent second rib 9 for the soundboard resonates the effect better during vibration, therefore the tone quality of piano is better, also is so between first rib 8 and middle part soundboard 6 and the lower part soundboard 5.

Through the above detailed description, the person skilled in the art can easily realize the present invention. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the basis of the disclosed embodiments, a person skilled in the art can combine different technical features at will, thereby implementing different technical solutions.

Claims

1. The piano sound source integrated system is characterized by comprising a back frame (1), wherein the back frame (1) supports the whole sound source, an arc-shaped notch (11) is formed in the edge of the rear end of the back frame (1), the arc-shaped notch (11) extends along the edge of the back frame (1) and is matched with the edge bending degree of the back frame (1), a lower back frame ring (2), a middle back frame ring (3) and an upper back frame ring (4) are fixedly arranged at the edge of the upper side of the back frame (1), the three are sequentially arranged from bottom to top, a lower sound board (5) is glued between the lower back frame ring (2) and the middle back frame ring (3), a middle sound board (6) is glued between the middle back frame ring (3) and the upper back frame ring (4), an upper sound board (7) is glued at the top of the upper back frame ring (4), and a front sound board frame (10) is arranged on one side, far away from the lower back frame ring (2), of the lower sound board (5, preceding sound board frame (10) with the crossbeam veneer of back of the body frame (1) is fixed, lower part soundboard (5) with the veneer is fixed with first stall bar of a plurality of (8) between middle part soundboard (6), middle part soundboard (6) with the veneer is fixed with a plurality of second stall bar (9) between upper portion soundboard (7), upper portion soundboard (7) are kept away from middle part soundboard (6) one side is equipped with well high-pitch bridge (12) and bass bridge (13).

2. A piano sound source integration system according to claim 1, wherein the contact surfaces of said lower back frame ring (2), said middle back frame ring (3), said upper back frame ring (4), said lower sound board (5), said middle sound board (6) and said upper sound board (7) are all flat.

3. The piano sound source integrated system of claim 1, wherein the middle back frame ring (3) and the front sound frame (10) are respectively provided with a groove, and two ends of the first rib (8) are respectively embedded into the grooves.

4. A piano sound source integration system according to claim 1, wherein said lower tone plate (5) and said middle tone plate (6) are the same length, said middle tone plate (6) is shorter than said upper tone plate (7), and said middle tone plate (6) is not in contact with said front tone plate frame (10).

5. A piano sound source integration system according to claim 1, wherein a hardwood cross rib (14) is glued to the bottom edge of the upper sound board (7) near the side of the arcuate slot (11), said hardwood cross rib (14) being shaped to match the arcuate slot (11) and located on the same side of the upper sound board (7) as the second rib (9), one end of the second rib (9) passing through the hardwood cross rib (14) being glued tightly to the upper sound board (7), and the end of the second rib (9) being flush with the edge of the upper sound board (7).

6. The piano sound source integrated system of claim 1, wherein the arc length of the arc-shaped notch (11) is 500-1000 mm, and the depth is 5-30 mm; the spacing distance between the edge of the rear end of the back frame (1) and the lower sound board (5) is 3-10 mm.

7. A piano sound source integration system according to claim 1, wherein said lower sound board (5), said middle sound board (6) and said upper sound board (7) are all made of pica spruce wood.