CN212541873U - Sound board with sound beam and sound tunnel in grand piano - Google Patents

Sound board with sound beam and sound tunnel in grand piano Download PDF

Info

Publication number
CN212541873U
CN212541873U CN202021739929.3U CN202021739929U CN212541873U CN 212541873 U CN212541873 U CN 212541873U CN 202021739929 U CN202021739929 U CN 202021739929U CN 212541873 U CN212541873 U CN 212541873U
Authority
CN
China
Prior art keywords
sound
soundboard
groove
area
grooves
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.)
Active
Application number
CN202021739929.3U
Other languages
Chinese (zh)
Inventor
金海鸥
吴念博
何新喜
朱信智
李碧英
杨萍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Liyue Musical Instrument Co Ltd
Original Assignee
Suzhou Liyue Musical Instrument Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suzhou Liyue Musical Instrument Co Ltd filed Critical Suzhou Liyue Musical Instrument Co Ltd
Priority to CN202021739929.3U priority Critical patent/CN212541873U/en
Application granted granted Critical
Publication of CN212541873U publication Critical patent/CN212541873U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

A soundboard with a sound beam and a sound tunnel in a grand piano is characterized in that a first groove and a second groove are formed in the outer wall of the soundboard, the first groove is obliquely arranged in the width direction of the soundboard, and the second groove is obliquely arranged in the length direction of the soundboard; the two grooves are crossed and communicated with each other, and the outer wall of the soundboard is divided into four resonance areas; the center of the outer wall of the soundboard is also provided with a sound beam assembly which comprises a plurality of strip-shaped sound beam components, and the strip-shaped sound beam components are arranged on two sides of the first groove and two sides of the second groove in pairs; the two grooves form sound tunnels on the outer wall of the soundboard respectively. The utility model discloses changing the soundboard into present standard vibration mode by free vibration mode in the past, solved the triangle steel musical instrument high pitch area from the angle of vibration, sympathetic response, sound production and bright not coming out, and the low pitch area is muddy and mellow not enough problem, has especially improved to the low pitch area pronunciation. Practice proves that the improved design scheme has outstanding substantive features and remarkable technical progress, and obvious technical effect is obtained.

Description

Sound board with sound beam and sound tunnel in grand piano
Technical Field
The utility model relates to a grand piano, concretely relates to soundboard of area sound roof beam and sound tunnel in grand piano.
Background
The piano is a keyboard instrument in Western classical music and is known as the king of the instrument. It is composed of 88 keys (52 white keys, 36 black keys) and a metal string sound board.
The piano has six main structures including strings, a skeleton, soundboards, a string striking machine system, a wooden shell and pedals. The soundboard (see figure 1) is composed of a sounding board (also called a soundboard big board), a wood assistant (also called a gear), a soundboard frame and string codes. The sound board is like a thin plate, the wood aids arranged at a certain distance are adhered on the lower surface of the sound board, the sound board frame is adhered on the periphery of the sound board, and the middle and high pitch string codes and the low pitch string codes are fixed on the upper surface of the sound board. When the strings vibrate, the sound board is vibrated through the transmission of the string codes tightly attached to the sound board, and the sound board starts to work. The soundboard is one of the components that play an important role in the sound quality of a piano. The strings are vibrated and sounded after being struck by the hammer, and the soundboard bears the vibration from the strings through the transmission of the string codes to enhance the sound radiation, strengthen the original sound and broadcast the energy obtained from the vibrated strings to the air as much as possible.
The range of a piano is typically seven octaves, with the high range accounting for about half an octave, the mid range accounting for about four octaves, and the low range accounting for about two and a half octaves.
The conventional grand piano has the following problems: when the grand piano pronounces, its soundboard has a natural resonant frequency, surpasss the certain range of resonant frequency region after, the high pitch district can't shine out, and the bass district is thick and mellow not enough. Especially, the tone quality of the bass region has been a short board of a piano, and even limits the creation width of the composer. The reason for this is that the present grand piano soundboard cannot satisfy a good wide-band vibration from a high range to a low range, that is, cannot simultaneously accommodate a wide frequency variation resonance and vibration in a high range, a middle range and a low range. In conclusion, the sound board of the traditional grand piano is unreasonable in structural design and is not favorable for the sound board to exert good sound wave vibration from a high-pitched area to a low-pitched area.
Therefore, how to solve the above-mentioned deficiencies of the prior art is a problem to be solved by the present invention.
Disclosure of Invention
The utility model aims at providing a soundboard of area sound roof beam and sound tunnel in grand piano.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a soundboard with a sound beam and a sound tunnel in a grand piano is characterized in that the inner wall of the soundboard is arranged towards strings of the piano; a first groove and a second groove are formed in the outer wall of the soundboard, wherein the first groove is obliquely arranged in the width direction of the soundboard, and the second groove is obliquely arranged in the length direction of the soundboard;
the first grooves and the second grooves are crossed on the outer wall of the soundboard and are communicated with each other, the crossed points are located in the center of the soundboard, and therefore the outer wall of the soundboard is divided into four resonance areas;
the center of the outer wall of the soundboard is also provided with a sound beam assembly, the sound beam assembly comprises a plurality of strip-shaped sound beam components, and the strip-shaped sound beam components are arranged on two sides of the first groove and two sides of the second groove in pairs;
the first groove and the second groove form a sound tunnel on the outer wall of the soundboard respectively.
The relevant content in the above technical solution is explained as follows:
1. in the above scheme, the first grooves and the second grooves are crossed on the outer wall of the soundboard and are communicated with each other, so that the vibration of the strings can be transmitted to the periphery of the soundboard rapidly through the cross-shaped sound tunnel (namely the sound tunnel) formed by the grooves.
2. In the above scheme, the intersection point of the first groove and the second groove is located in the center of the soundboard so as to improve the tone quality and tone color of the soundboard.
3. In the above scheme, a connection beam is arranged between two adjacent strip-shaped sound beam components, and the connection beam spans over the first groove and the second groove to form the sound beam assembly in a groined shape; and each of the connecting beams is located in a central region of the surface of the soundboard. By this design, the central region of the soundboard can be reinforced.
4. In the above-mentioned scheme, each of the soundboard be equipped with many radiation sound roof beams respectively in the resonance region, each radiation sound roof beam parallel arrangement in the same resonance region, and at least one the one end of radiation sound roof beam is towards the geometric centre of soundboard horizontal direction to strengthen the intensity of soundboard.
5. In the above-mentioned scheme, still be equipped with many radiation sound roof beams on the soundboard, radiation sound roof beam is located each resonance region is in to be radially arranged with the center of soundboard horizontal direction as the benchmark.
6. In the scheme, the soundboard is divided into a peripheral high-sound area, a middle-sound area and a central low-sound area from a sound frequency range; the wall thickness of the soundboard is gradually thickened from outside to inside, the wall thickness of a low-sound area is larger than that of a middle-sound area, and the wall thickness of the middle-sound area is larger than that of a high-sound area; the sound beam assembly is located in the bass region.
By the design, the thicker bass region is arranged close to the center, so that low-frequency vibration with lower frequency and larger amplitude can emit more muddy and mellow bass in the bass region of the soundboard; through setting up thinner high pitch area in the position of keeping away from the center, can make the frequency higher, the less high-frequency vibration of amplitude send more penetrating, bright high pitch at the high pitch area of soundboard, and then make grand piano all obtain effectively promoting at tone quality, the tone quality that full frequency channel produced.
7. In the above scheme, the strip-shaped sound beam member is composed of a wooden base and a weight increasing block connected to the wooden base. By means of the design, the central area of the soundboard can be strengthened, and the sound quality and the tone quality of the bass zone are improved.
8. In the above-mentioned scheme, the inner thickness of strip sound beam component is greater than outer end thickness, the inner thickness of radiation sound beam is greater than outer end thickness, borrows this design, can realize strengthening the central zone of soundboard.
9. In the above scheme, first slot with the second slot is the arc wall, can be so that the soundboard reduces the thickness sudden change as far as possible in thickness, avoids influencing the sympathetic response and the vibration of soundboard.
10. In the above scheme, the lengths of the first groove and the second groove are both smaller than the horizontal width of the soundboard, and smooth transition surfaces are arranged between the outer ends of the first groove and the second groove and the outer wall of the soundboard.
The utility model discloses a theory of operation and advantage as follows:
the utility model relates to a soundboard with a sound beam and a sound tunnel in a grand piano, wherein the outer wall of the soundboard is provided with a first groove and a second groove, the first groove is obliquely arranged in the width direction of the soundboard, and the second groove is obliquely arranged in the length direction of the soundboard; the two grooves are crossed and communicated with each other, and the outer wall of the soundboard is divided into four resonance areas; the center of the outer wall of the soundboard is also provided with a sound beam assembly which comprises a plurality of strip-shaped sound beam components, and the strip-shaped sound beam components are arranged on two sides of the first groove and two sides of the second groove in pairs; the two grooves form sound tunnels on the outer wall of the soundboard respectively.
Compared with the prior art, can't compromise the problem that high, well, bass district possess good sympathetic response tone simultaneously in order to solve current grand piano, the utility model discloses soundboard design in to current grand piano, especially grand piano has improved. The concrete aspects are as follows: firstly, erecting a sound beam assembly on the outer wall of a sound board; and secondly, a cross groove is formed in the outer wall of the soundboard, so that a cross sound tunnel is formed in the outer wall of the soundboard.
The utility model discloses can not come out to current grand piano high pitch district, and the not enough problem of bass district muddy and mellow, carried out deep discussion and research to grand piano's design and sound production mechanism, found out the not good leading cause of tone quality in current grand piano high pitch district and bass district because the soundboard design is unreasonable to be sent. In view of the above, the inventor has broken the constraint that grand piano constitutes the design in the past, and the bold has proposed the utility model discloses an improve design, this kind of improve design changes the soundboard into present standard vibration mode by free vibration mode in the past, has solved the triangle steel musical instrument high pitch district from the angle of vibration, sympathetic response, sound production and has bright out, and the low pitch district is muddy mellow and full not enough problem, practice proves that this improves design has outstanding substantive characteristics and apparent technological progress to obvious technological effect has been obtained.
The utility model discloses especially, improve the soundboard to the comparatively outstanding bass district tone quality problem of current grand piano, compensatied the range short slab of piano, widened composer's creation width.
Because of above-mentioned technical scheme's application, the utility model discloses compare with current grand piano soundboard and have following advantage and effect:
1. the utility model discloses set up the sound beam subassembly on the outer wall of soundboard, because the relative high pitch amplitude of bass is big, the frequency is low, the bass sympathetic response is concentrated in the central zone that the soundboard is close to the voice coil loudspeaker voice coil, and the high pitch sympathetic response is concentrated in the peripheral region all around of soundboard, strengthens soundboard central zone intensity, has played important effect to improving bass district tone color and tone quality. The thickness of the sound board is a thickness gradually-changing structure with thick central area and thin periphery, so that the strength of the central area of the sound board is enhanced, the thickness difference between the central area and the peripheral area of the sound board is relatively changed, and the sound board has a beneficial effect on improving the tone color and the tone quality of a high-pitch area.
2. The utility model discloses seted up the cross slot on the soundboard outer wall, this cross slot actually forms cross sound tunnel on the outer wall of soundboard, and the vibration is collected by the soundboard center to through the transmission of cross sound tunnel (the tunnel of sound promptly) to the edge all around of soundboard rapidly, this has played the key role to tone quality and the tone quality that improves the high sound zone.
3. The utility model discloses a design of sound roof beam subassembly and cross slot marks off four sympathetic response regions on the soundboard. When the piano is played, the vibration of the strings is transmitted to the center area where the sound tunnels intersect, then transmitted to the four resonance areas through the sound tunnels, and resonance and vibration are generated, so that the string sound is amplified to be the resonance sound of the tone plate. The piano can only produce three sound wave volume when playing before improving, and in the resonant cavity, the soundboard corresponds the region and is a resonance region, and resonance region produces a sound wave volume, adds a string wave volume, and in addition one percussion wave volume counts three sound wave volume altogether. And after improving the utility model discloses can produce six sound wave volume when the piano is played, wherein, four sympathetic response regions produce four sound wave volumes, in addition a string wave volume, in addition a percussion wave volume counts six sound wave volumes altogether. The sound wave quantity, i.e., the number of sound waves, for a specific stringed instrument, in addition to one string wave quantity and one percussion wave quantity, mainly depends on the number of resonance areas of the tone plate, and usually, the instrument produces one sound wave quantity per resonance area during playing, and how many resonance areas produce how many sound wave quantities. In addition, the sound volume directly affects the timbre, penetration and volume of the instrument. Therefore, the design of the invention can obviously improve the timbre of the high-tone area and the low-tone area and increase the penetrating power of the high-tone area and the low-tone area.
4. The utility model discloses each slot all adopts the arc wall, can be so that the soundboard reduces the thickness sudden change as far as possible in thickness, avoids influencing the sympathetic response and the vibration of soundboard.
Drawings
FIG. 1 is a schematic structural view of a conventional grand piano soundboard;
FIG. 2 is a schematic structural diagram of a soundboard (without connecting beams) according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a soundboard (with connecting beams) according to an embodiment of the present invention;
fig. 4 is a schematic side view of a soundboard according to an embodiment of the present invention (without tie-beams);
FIG. 5 is a schematic side view of a soundboard according to an embodiment of the present invention (with connecting beams);
fig. 6 is a schematic sectional view of a soundboard body according to an embodiment of the present invention;
fig. 7 is a schematic structural view of an acoustic beam assembly (with a connecting beam) according to an embodiment of the present invention;
fig. 8 is a schematic side view of an acoustic beam assembly (with a connecting beam) according to an embodiment of the present invention;
fig. 9 is a schematic structural view of a radiation sound beam according to an embodiment of the present invention;
fig. 10 is a schematic side view of a radiation beam according to an embodiment of the present invention.
In the above drawings: 1. a soundboard; 2. a first trench; 3. a second trench; 4. a sound beam assembly; 4a strip-shaped sound beam member; 4b, connecting the beams; 5. a radiation sound beam; 6. a resonance region; 7. a wooden base; 8. and (4) increasing the weight.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
example (b): the present invention will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown and described, and in which modifications and variations can be made without departing from the spirit and scope of the invention.
As used herein, the term "connected" or "disposed" refers to two or more elements or devices being in direct physical contact with each other or in indirect physical contact with each other, and may also refer to two or more elements or devices being in operation or acting on each other.
As used herein, the terms "comprising," "including," "having," and the like are open-ended terms that mean including, but not limited to.
As used herein, the term (terms), unless otherwise indicated, shall generally have the ordinary meaning as commonly understood by one of ordinary skill in the art, in this written description and in the claims. Certain words used to describe the disclosure are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the disclosure.
Referring to fig. 2-10, the soundboard with the sound beam and the sound tunnel in the grand piano is characterized in that the inner wall of the soundboard 1 faces the strings of the piano.
A first groove 2 and a second groove 3 are formed in the outer wall of the sound board 1, wherein the first groove 2 is obliquely arranged in the width direction of the sound board 1, and the second groove 3 is obliquely arranged in the length direction of the sound board 1; the first grooves 2 and the second grooves 3 cross each other on the outer wall of the tone plate 1 and penetrate each other, with the cross point being located at the center of the tone plate 1, thereby dividing the outer wall of the tone plate 1 into four resonance regions 6.
The first groove 2 and the second groove 3 form sound tunnels on the outer wall of the soundboard 1 respectively.
Through set up the cross slot on the outer wall of soundboard 1, this cross slot actually forms the cross sound tunnel on soundboard 1 outer wall, and the region that is close to the center collects the vibration of musical instrument string, and the rethread cross sound tunnel is peripheral edge transmission all around to soundboard 1 rapidly, and this has played the key role to the tone quality and the tone quality that improve the high sound zone. Simultaneously through dividing out four sympathetic response regions 6 on the soundboard 1, the vibration accessible sound tunnel transmits to these four sympathetic response regions 6 to produce the resonance, can obviously improve the tone quality in high-pitched region and bass region.
The sound board is characterized in that a sound beam assembly 4 is further arranged in the center of the outer wall of the sound board 1, the sound beam assembly 4 comprises a plurality of strip-shaped sound beam members 4a, and the strip-shaped sound beam members 4a are arranged on two sides of the first groove 2 and two sides of the second groove 3 in pairs.
Through set up tone beam subassembly 4 on the outer wall at soundboard 1, because bass amplitude is big, the frequency is low relatively, the bass sympathetic response is concentrated on the central zone of soundboard 1, and the treble sympathetic response is concentrated on the peripheral edge region all around of soundboard 1, strengthens soundboard 1 central zone intensity, has played important effect to improving bass district tone color and tone quality. Because the thickness of the soundboard 1 is a thickness gradually changing structure (namely, the design of the thickness of the outer part and the thickness of the inner part) with the thickness of the central area being thick and the thickness of the periphery being thin, the strength of the central area of the soundboard 1 is enhanced, the thickness difference between the central area and the periphery area of the soundboard 1 is relatively changed, and the soundboard 1 also has a beneficial effect on improving the tone color and the tone quality of the high-pitch range.
Preferably, as shown in fig. 3 and 5, a connecting beam 4b is arranged between two adjacent strip-shaped sound beam members 4a, and the connecting beam 4b spans over the first groove 2 and the second groove 3 to form the sound beam assembly in a groined shape; and each of the connecting beams 4b is located in a central region of the surface of the soundboard 1. Constitute a "mouth" font additional strengthening through four tie-beams 4b, further strengthen the bass district at soundboard 1 center to reach the further promotion to piano bass district tone quality.
Preferably, the soundboard 1 is divided into a peripheral high-pitch area, a middle-pitch area and a central low-pitch area from the sounding frequency band; the wall thickness of the soundboard 1 is gradually increased from outside to inside, the wall thickness of a low-sound area is larger than that of a middle-sound area, and the wall thickness of the middle-sound area is larger than that of a high-sound area; by the design, the thicker bass region is arranged at a position close to the center, so that low-frequency vibration with lower frequency and larger amplitude can emit more muddy and smooth bass in the bass region of the soundboard 1; by arranging the thin high pitch range at a position away from the center, high-frequency vibration with higher frequency and smaller amplitude can be enabled to emit more transparent and bright high pitch in the high pitch range of the sound board 1. The sound beam assembly 4 is positioned in the bass region, and can further improve the load of the middle area of the sound board 1.
Preferably, as shown in fig. 7 and 8, the sound bar member 4a is composed of a wooden base 7 and a weight 8 connected to the wooden base 7. By this design, the central area of the soundboard 1 can be further strengthened, and the sound quality and the tone quality of the bass zone can be improved.
Preferably, a plurality of radiation sound beams 5 are respectively arranged in each resonance area 6 of the tone plate 1 in equal number, the radiation sound beams 5 in the same resonance area are arranged in parallel, and one end of at least one radiation sound beam 5 faces the geometric center of the tone plate 1. Besides, the radiation sound beams 5 may be radially arranged with the center of the sound board 1 in the horizontal direction as a reference.
Preferably, the inner end thickness of the strip-shaped sound beam member 4a is greater than the outer end thickness, and the inner end thickness of the radiation sound beam 5 is greater than the outer end thickness. With this design, it is possible to realize reinforcement of the center region of the soundboard 1.
Preferably, the first grooves 2 and the second grooves 3 are arc-shaped grooves, so that the thickness of the soundboard 1 is reduced as much as possible, and the resonance and vibration of the soundboard 1 are prevented from being influenced. The lengths of the first grooves 2 and the second grooves 3 are smaller than the horizontal width of the sound board 1; smooth transition surfaces are arranged between the outer ends of the two grooves 2 and 3 and the outer wall of the sound board 1, so that vibration is transmitted to the periphery of the sound board 1 more uniformly.
Other embodiments and structural changes of the present invention are described below as follows:
1. in the above embodiments, the illustrated soundboard is only used for illustration, the structure of the soundboard is not used to limit the protection scope of the present invention, and other soundboards with similar structures should be covered by the technical features of the present invention.
2. In the above embodiment, the number of the sound beam assemblies 4 is not limited to one set, but may be a plurality of sets in parallel or other designs which contribute to the center load reinforcement of the soundboard 1, as will be understood and accepted by those skilled in the art.
3. In the above embodiment, the bar-shaped sound beam members 4a may have a radian as shown in the figure and include long sides and short sides, and are arranged on both sides of the second groove 3 in pairs by the long sides of two adjacent bar-shaped sound beam members 4a and arranged on both sides of the first groove 2 in pairs by the short sides of two adjacent bar-shaped sound beam members 4 a;
alternatively, the strip-shaped sound beam members 4a may also be straight strips, and two of the sound beam members are combined at 90 degrees and are arranged on two sides of the first groove 2 and two sides of the second groove 3 in pairs.
4. In the above embodiments, the first grooves 2 and the second grooves 3 are arc-shaped grooves. However, the present invention is not limited thereto, and the groove may be designed into other shapes, such as a V-shape, a U-shape, a W-shape, and other concave structures. As would be readily understood and accepted by those skilled in the art.
Compared with the prior art, can't compromise the problem that high, well, bass district possess good sympathetic response tone simultaneously in order to solve current grand piano, the utility model discloses soundboard design in to current grand piano, especially grand piano has improved. The concrete aspects are as follows: firstly, erecting a sound beam assembly on the outer wall of a sound board; and secondly, a cross groove is formed in the outer wall of the soundboard, so that a cross sound tunnel is formed in the outer wall of the soundboard.
The utility model discloses can not come out to current grand piano high pitch district, and the not enough problem of bass district muddy and mellow, carried out deep discussion and research to grand piano's design and sound production mechanism, found out the not good leading cause of tone quality in current grand piano high pitch district and bass district because the soundboard design is unreasonable to be sent. In view of the above, the inventor has broken the constraint that grand piano constitutes the design in the past, and the bold has proposed the utility model discloses an improve design, this kind of improve design changes the soundboard into present standard vibration mode by free vibration mode in the past, has solved the triangle steel musical instrument high pitch district from the angle of vibration, sympathetic response, sound production and has bright out, and the low pitch district is muddy mellow and full not enough problem, practice proves that this improves design has outstanding substantive characteristics and apparent technological progress to obvious technological effect has been obtained.
The utility model discloses especially, improve the soundboard to the comparatively outstanding bass district tone quality problem of current grand piano, compensatied the range short slab of piano, widened composer's creation width.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (10)

1. The utility model provides a take soundboard of sound roof beam and sound tunnel in grand piano which characterized in that:
the inner wall of the sound board (1) is arranged towards the strings of the piano; a first groove (2) and a second groove (3) are formed in the outer wall of the soundboard (1), wherein the first groove (2) is obliquely arranged in the width direction of the soundboard (1), and the second groove (3) is obliquely arranged in the length direction of the soundboard (1);
the first grooves (2) and the second grooves (3) are crossed on the outer wall of the soundboard (1) and are communicated with each other, the crossed point is positioned at the center of the soundboard (1), and the outer wall of the soundboard (1) is further divided into four resonance areas (6);
the sound board is characterized in that a sound beam assembly (4) is further arranged in the center of the outer wall of the sound board (1), the sound beam assembly (4) comprises a plurality of strip-shaped sound beam members (4 a), and the strip-shaped sound beam members (4 a) are arranged on two sides of the first groove (2) and two sides of the second groove (3) in pairs;
the first groove (2) and the second groove (3) form a sound tunnel on the outer wall of the soundboard (1) respectively.
2. The soundboard according to claim 1, characterised in that: the soundboard (1) is divided into a peripheral high-pitch area, a middle-pitch area and a central low-pitch area from a sounding frequency range;
the wall thickness of the soundboard (1) is gradually thickened from outside to inside, the wall thickness of a low-sound area is larger than that of a middle-sound area, and the wall thickness of the middle-sound area is larger than that of a high-sound area;
the sound beam component (4) is positioned in the bass region.
3. The soundboard according to claim 1, characterised in that: the strip-shaped sound beam component (4 a) is composed of a wooden base (7) and a weighting block (8) connected to the wooden base (7).
4. The soundboard according to claim 1, characterised in that: a connecting beam (4 b) is arranged between every two adjacent strip-shaped sound beam components (4 a), and the connecting beam (4 b) stretches across the upper parts of the first groove (2) and the second groove (3) to form a sound beam assembly (4) in a groined shape; and each of the connecting beams (4 b) is located in a central region of the surface of the soundboard (1).
5. The soundboard according to claim 1, characterised in that: a plurality of radiation sound beams (5) are arranged in each resonance area (6) of the soundboard (1) respectively, each radiation sound beam (5) in the same resonance area is arranged in parallel, and one end of at least one radiation sound beam (5) faces to the geometric center of the soundboard (1) in the horizontal direction.
6. The soundboard according to claim 1, characterised in that: the soundboard (1) is further provided with a plurality of radiation sound beams (5), and the radiation sound beams (5) are located in the resonance areas (6) and are radially arranged by taking the center of the soundboard (1) in the horizontal direction as a reference.
7. The soundboard according to claim 5 or 6, characterised in that: the thickness of the inner end of the radiation sound beam (5) is larger than that of the outer end.
8. The soundboard according to claim 1, characterised in that: the thickness of the inner end of the strip-shaped sound beam component (4 a) is larger than that of the outer end.
9. The soundboard according to claim 1, characterised in that: the first groove (2) and the second groove (3) are both arc-shaped grooves.
10. The soundboard according to claim 1, characterised in that: the lengths of the first groove (2) and the second groove (3) are smaller than the horizontal width of the soundboard (1); smooth transition surfaces are arranged between the outer ends of the first grooves (2) and the second grooves (3) and the outer wall of the soundboard (1).
CN202021739929.3U 2020-08-19 2020-08-19 Sound board with sound beam and sound tunnel in grand piano Active CN212541873U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021739929.3U CN212541873U (en) 2020-08-19 2020-08-19 Sound board with sound beam and sound tunnel in grand piano

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021739929.3U CN212541873U (en) 2020-08-19 2020-08-19 Sound board with sound beam and sound tunnel in grand piano

Publications (1)

Publication Number Publication Date
CN212541873U true CN212541873U (en) 2021-02-12

Family

ID=74528965

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021739929.3U Active CN212541873U (en) 2020-08-19 2020-08-19 Sound board with sound beam and sound tunnel in grand piano

Country Status (1)

Country Link
CN (1) CN212541873U (en)

Similar Documents

Publication Publication Date Title
CN212541873U (en) Sound board with sound beam and sound tunnel in grand piano
CN212434216U (en) Soundboard with sound beam and sound tunnel in upright piano
CN213070575U (en) Soundboard with ring-shaped sectional type sound beam in piano
CN111951748A (en) Sound board with sound beam and sound tunnel in grand piano
CN111951749A (en) Soundboard with sound beam and sound tunnel in upright piano
CN212541883U (en) Full-band high-tone-quality Ruan with sound beam and sound tunnel
CN213070582U (en) Ruan with sound tunnel
CN212434227U (en) Full-frequency-band high-tone-quality dulcimer with sound beam and sound tunnel
CN212434226U (en) Ruan with annular integral sound beam
CN213070583U (en) Ruan with annular sectional type sound beam
CN213070588U (en) Dulcimer with annular sectional type sound beam
CN212541884U (en) Dulcimer with annular integral sound beam
CN212541877U (en) Erhu with diaphragm provided with annular integral sound beam
CN212847634U (en) Urheen with skin membrane provided with sound beam and sound tunnel
CN213070587U (en) Dulcimer with sound beam
CN111951763A (en) Full-band high-tone-quality Ruan with sound beam and sound tunnel
CN212541879U (en) Two sound roof beam konghou
CN212434223U (en) Double-sound-beam five-string instrument
CN213070578U (en) Erhu with sound tunnel on skin
CN212434225U (en) Double-tone beam se
CN212541881U (en) Double-sound beam Japanese zither
CN213070584U (en) Ruan with sound beam
CN111951753A (en) Urheen with skin membrane provided with sound beam and sound tunnel
CN111951764A (en) Ruan with annular integral sound beam
CN111951752A (en) Erhu with diaphragm provided with annular integral sound beam

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant