CN102632523B - Solid-wood metallic fabric composite soundboard - Google Patents
Solid-wood metallic fabric composite soundboard Download PDFInfo
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- CN102632523B CN102632523B CN201210136473.5A CN201210136473A CN102632523B CN 102632523 B CN102632523 B CN 102632523B CN 201210136473 A CN201210136473 A CN 201210136473A CN 102632523 B CN102632523 B CN 102632523B
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- dash board
- screen cloth
- metal screen
- soundboard
- central layer
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- Veneer Processing And Manufacture Of Plywood (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention provides a solid-wood metallic fabric composite soundboard which belongs to an instrument soundboard. The soundboard comprises an upper surface plate, a lower surface plate and a core plate clamped between the upper surface plate and the lower surface plate; and the soundboard further comprises an upper metallic fabric clamped between the upper surface plate and the core plate and a lower metallic fabric clamped between the lower surface plate and the core plate. The composite soundboard not only improves the vibration spreading speed in across grain direction of wood, improves the vibration uniformity of the whole soundboard, but also has better vibrating timbre and vibrating sensitivity in comparison with the carbon fiber soundboard.
Description
Technical field
Solid wood metal screen cloth Complex soundboard belongs to a kind of musical instrument soundboard, relates in particular to a kind of piano soundboard.
Background technology
Sympathetic response soundboard is piano vitals, plays resonance to string rattle, beautifies and radiation effects.Wooden sound board or the three-layer real-wood Complex soundboard of tradition piano, due to timber anisotropic, the Vibration propagation speed of timber across grain direction is much smaller than the Vibration propagation speed of short grain direction, and this specific character has caused soundboard to vibrate inhomogeneity decline.Although the main stall bars that strengthen soundboard mechanical strength performance that rise in piano soundboard, can improve to a certain extent the Vibration propagation characteristic of timber across grain direction, but sound in the Vibration propagation speed of across grain direction still much smaller than the Vibration propagation speed of rift grain direction.At present, people have developed again carbon fibre material soundboard, although can reduce the vibration difference of soundboard different directions, in tone color, have larger gap with wooden sound board or composite wooden sound board.
Summary of the invention
The present invention is directed to above-mentioned the problems of the prior art, design provides a kind of solid wood metal screen cloth Complex soundboard, this complex tone version not only can be improved the Vibration propagation homogeneity of soundboard in each discovery, and can improve dimensional stability and the voice effect stability of soundboard.
The object of the present invention is achieved like this:
A kind of solid wood metal screen cloth Complex soundboard, comprise dash board 3a, lower dash board 3b and be clipped in dash board 3a and the central layer 1 of lower dash board 3b centre, also comprise and be clipped in dash board 3a and the middle upper strata metal screen cloth 2a of central layer 1, be clipped in lower dash board 3b and the middle lower metal screen cloth 2b of central layer 1.
Above-mentioned solid wood metal screen cloth Complex soundboard, is glue connection bonding between described upper dash board 3a, upper strata metal screen cloth 2a, central layer 1, lower metal screen cloth 2b and lower dash board 3b.
Above-mentioned solid wood metal screen cloth Complex soundboard, described upper dash board 3a and lower dash board 3b are pressed respectively with the long limit of soundboard and are kept the angle of inclination of 35 ~ 60 ° to be spliced by quarter sawing Picea genera wood veneer.
Described central layer 1 is grown the perpendicular mode in limit or parallel mode or oblique mode by Picea, Abies, linden or paulownia wood lath by its grain direction and soundboard and is spliced.
Above-mentioned solid wood metal screen cloth Complex soundboard, described upper strata metal screen cloth 2a and the major axis metal wire square of lower metal screen cloth 2b are to becoming 30-60 ° of angle with the grain direction of upper dash board 3a and lower dash board 3b.
Metal screen cloth is woven and is formed by twill or plain weave mode by tinsel, and diameter wiry is 0.025-0.5mm, and mesh diameter is 0.05-0.5mm.
Above-mentioned solid wood metal screen cloth Complex soundboard, the thickness of described upper dash board 3a is 0.5-1.5cm; The thickness of lower dash board 3b is 0.5-1.5cm.
Above-mentioned solid wood metal screen cloth Complex soundboard, described central layer 1 thickness is 5.0-8.0cm.
Compared with the existing technology, Complex soundboard of the present invention has increased the upper strata metal screen cloth that is clipped in dash board and central layer centre, and be clipped in the lower metal screen cloth in the middle of lower dash board and central layer, this design makes the present invention not only improve the Vibration propagation speed of timber across grain direction, improve the vibration homogeneity of monoblock soundboard, and compare with carbon fiber board soundboard, there is better vibration tone color and vibration sensitivity.
the advantage that metal material has is as follows:
1,metal material has isotropy, the sound conductivity of different directions is identical, and the transaudient speed of several metal materials is as shown in the table, relatively can find out with timber, the transaudient speed of metal material and the rift grain direction of timber approach, but much larger than the band direction of timber.
2, the water resistance of metal material is high, there will be hardly the wet phenomenon that rises of drying shrinkage.
the shortcoming that timber itself exists is as follows:
1,timber has very large anisotropic, and the elastic modulus difference of short grain and across grain direction is very large, and as the fish scale sprucewood in table, the elastic mould value of short grain is 11.55GPa, and across grain only has 0.26GPa;
2, timber has the wet characteristic that rises of drying shrinkage, and the wet rate of rising of the drying shrinkage of different directions has very large difference, and this is also the easily reason place of cracking of soundboard, and following table has been listed the contract with dry rate of several timber.As can be seen from the table, timber radially has very large difference with Chordwise shrinkage;
this patent has advantages of:
Compound by solid wood and metal screen cloth, can improve the performance of the following aspects of wooden soundboard:
1, can improve the acoustic vibration velocity of propagation of timber across grain direction: the acoustic vibration velocity of propagation of the across grain direction of timber will be far below the short grain direction of timber, compound by solid wood and metal screen cloth, can greatly improve the Vibration propagation speed of the across grain direction of soundboard, the Vibration propagation speed of across grain direction has more than original not enough 1000m/s is increased to 1500m/s, has improved 0.7 ~ 1.5 times.Vibration sensitivity and the homogeneity of soundboard are improved to a great extent.
2, can improve the dimensional stability of soundboard, reduce soundboard cracking risk: because wire netting cloth material has very high water resistance, its size changes with the humiture of external environment hardly, has limited to a great extent distortion and the cracking of timber part in soundboard.Change with aerial temperature and humidity, solid wood metal screen cloth Complex soundboard only has 1/4 ~ 1/3 of wooden sound board and three-layer real-wood Complex soundboard at the deflection of across grain direction.
Accompanying drawing explanation
Fig. 1 is the structural representation of solid wood metal screen cloth Complex soundboard.
Fig. 2 is the wood single-plate splicing construction schematic diagram of upper dash board or lower dash board, and oblique line is wherein the connecting sewing between adjacent two veneers.
Fig. 3 is the metal screen cloth structural representation of plain weave.
Fig. 4 is the metal screen cloth structural representation of twill weave.
In figure: under 1 central layer, 2a upper strata metal screen cloth, 2b lower metal screen cloth, the upper dash board of 3a, 3b, dash board, 4 is major axis tinsel; 5 is minor axis tinsel.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the invention is described in further detail.
Embodiment mono-:
A kind of solid wood metal screen cloth Complex soundboard, with reference to Fig. 1, it comprises dash board 3a, lower dash board 3b and is clipped in dash board 3a and the central layer 1 of lower dash board 3b centre, also comprise and be clipped in dash board 3a and the middle upper strata metal screen cloth 2a of central layer 1, be clipped in lower dash board 3b and the middle lower metal screen cloth 2b of central layer 1, metal screen cloth is woven and is formed by twill or plain weave mode by tinsel, and as shown in Figure 3 and Figure 4,1 is major axis tinsel; 2 is minor axis tinsel, and diameter wiry is 0.025-0.5mm;
Φfor braiding aperture, mesh diameter
Φfor 0.05-0.5mm; Between upper dash board 3a, upper strata metal screen cloth 2a, central layer 1, lower metal screen cloth 2b and lower dash board 3b, be glue connection bonding; Wherein, upper dash board 3a and lower dash board 3b form by quarter sawing Picea genera wood veneer splicing, and their grain direction is identical, all counterclockwise become 35-60 ° of angle with the long limit of soundboard, as shown in Figure 2,
xdirection is the long side direction of soundboard;
ydirection is the short side direction of soundboard;
φ=35 ~ 60 °.
Form in five laminates of solid wood carbon cloth Complex soundboard, upper dash board 3a is identical with the thickness of lower dash board 3b, is 1.0cm; The thickness of central layer 1 is 6.0cm; Specification and the material of upper strata metal screen cloth 2a and lower metal screen cloth 2b are all identical.
Embodiment bis-: the long limit of described upper dash board and the wood single-plate of lower dash board and soundboard keeps the angle of inclination of 40 °, central layer parallels mode by Abies timber lath by the long limit of its grain direction and soundboard and is spliced, the major axis metal wire square of described upper strata metal screen cloth is to become 35 ° of angles with the grain direction of upper dash board, the major axis metal wire square of lower metal screen cloth is to become 35 ° of angles with the grain direction of lower dash board, metal screen cloth is woven and is formed by twill mode by tinsel, diameter wiry is 0.03mm, and mesh diameter is 0.06mm.Described upper dash board and the thickness of lower dash board are 0.6cm, and described central layer thickness is 5.5cm.
Embodiment tri-: the long limit of described upper dash board and the wood single-plate of lower dash board and soundboard keeps the angle of inclination of 45 °, central layer is spliced by the perpendicular mode of its grain direction and the long limit of soundboard by linden lath, the major axis metal wire square of described upper strata metal screen cloth is to become 40 ° of angles with the grain direction of upper dash board, the major axis metal wire square of lower metal screen cloth is to become 40 ° of angles with the grain direction of lower dash board, metal screen cloth is woven and is formed by plain weave mode by tinsel, diameter wiry is 0.1mm, mesh diameter is 0.1mm, described upper dash board and the thickness of lower dash board are 0.8cm, described central layer thickness is 6.0cm.
Embodiment tetra-: the long limit of described upper dash board and the wood single-plate of lower dash board and soundboard keeps the angle of inclination of 50 °, central layer is acute angle mode by paulownia wood lath by its grain direction and the long limit of soundboard and is spliced, the major axis metal wire square of described upper strata metal screen cloth to the grain direction angle at 45 ° of upper dash board, the major axis metal wire square of lower metal screen cloth to the grain direction angle at 45 ° of lower dash board, metal screen cloth is woven and is formed by twill mode by tinsel, diameter wiry is 0.2mm, mesh diameter is 0.2mm, described upper dash board and the thickness of lower dash board are 1.1cm, described central layer thickness is 6.5cm.
Embodiment five: the long limit of described upper dash board and the wood single-plate of lower dash board and soundboard keeps the angle of inclination of 55 °, central layer parallels mode by Picea genera wood lath by the long limit of its grain direction and soundboard and is spliced, the major axis metal wire square of described upper strata metal screen cloth is to become 50 ° of angles with the grain direction of upper dash board, the major axis metal wire square of lower metal screen cloth is to become 50 ° of angles with the grain direction of lower dash board, metal screen cloth is woven and is formed by twill or plain weave mode by tinsel, diameter wiry is 0.3mm, mesh diameter is 0.3mm, described upper dash board and the thickness of lower dash board are 1.3cm, described central layer thickness is 7.0cm.
Embodiment six: the long limit of described upper dash board and the wood single-plate of lower dash board and soundboard keeps the angle of inclination of 58 °, the major axis metal wire square of described upper strata metal screen cloth is to become 55 ° of angles with the grain direction of upper dash board, the major axis metal wire square of lower metal screen cloth is to become 55 ° of angles with the grain direction of lower dash board, metal screen cloth is woven and is formed by twill or plain weave mode by tinsel, diameter wiry is 0.4mm, mesh diameter is 0.4mm, described upper dash board and the thickness of lower dash board are 1.0cm, and described central layer thickness is 7.5cm.
Embodiment seven: the long limit of described upper dash board and the wood single-plate of lower dash board and soundboard keeps the angle of inclination of 56 °, the major axis metal wire square of described upper strata metal screen cloth is to become 32 ° of angles with the grain direction of upper dash board, the major axis metal wire square of lower metal screen cloth is to become 32 ° of angles with the grain direction of lower dash board, metal screen cloth is woven and is formed by twill or plain weave mode by tinsel, diameter wiry is 0.45mm, and mesh diameter is 0.45mm.Described upper dash board and the thickness of lower dash board are 1.4cm, and described central layer thickness is 7.9cm.
Embodiment eight: the long limit of described upper dash board and the wood single-plate of lower dash board and soundboard keeps the angle of inclination of 37 °, the major axis metal wire square of described upper strata metal screen cloth is to become 58 ° of angles with the grain direction of upper dash board, the major axis metal wire square of lower metal screen cloth is to become 58 ° of angles with the grain direction of lower dash board, metal screen cloth is woven and is formed by twill or plain weave mode by tinsel, diameter wiry is 0.08mm, mesh diameter is 0.06mm, described upper dash board and the thickness of lower dash board are 0.5cm, and described central layer thickness is 5.1cm.
Claims (7)
1. a solid wood metal screen cloth Complex soundboard, comprise dash board (3a), lower dash board (3b) and be clipped in dash board (3a) and the central layer (1) of lower dash board (3b) centre, characterized by further comprising and be clipped in dash board (3a) and the middle upper strata metal screen cloth (2a) of central layer (1), be clipped in the middle lower metal screen cloth (2b) of lower dash board (3b) and central layer (1); Described metal screen cloth is woven and is formed by twill or plain weave mode by tinsel, and diameter wiry is 0.025-0.5mm, and mesh diameter is 0.05-0.5mm.
2. solid wood metal screen cloth Complex soundboard according to claim 1, is characterized in that between described upper dash board (3a), upper strata metal screen cloth (2a), central layer (1), lower metal screen cloth (2b) and lower dash board (3b), being glue connection bonds.
3. solid wood metal screen cloth Complex soundboard according to claim 1, is characterized in that described upper dash board (3a) and lower dash board (3b) keep the angle of inclination of 35～60 ° to be spliced by growing limit with soundboard respectively by quarter sawing Picea genera wood veneer.
4. solid wood metal screen cloth Complex soundboard according to claim 1, is characterized in that described central layer (1) is spliced by the long perpendicular mode in limit of its grain direction and soundboard or parallel mode or oblique mode by Picea, Abies, linden or paulownia wood lath.
5. according to the solid wood metal screen cloth Complex soundboard described in claim 1 to 4 any one, it is characterized in that the major axis metal wire square of described upper strata metal screen cloth (2a) and lower metal screen cloth (2b) is to becoming 30-60 ° of angle with the grain direction of upper dash board (3a) and lower dash board (3b).
6. according to the solid wood metal screen cloth Complex soundboard described in claim 1 to 4 any one, it is characterized in that the thickness of described upper dash board (3a) is 0.5-1.5cm; The thickness of lower dash board (3b) is 0.5-1.5cm.
7. according to the solid wood metal screen cloth Complex soundboard described in claim 1 to 4 any one, it is characterized in that described central layer (1) thickness is 5.0-8.0cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210136473.5A CN102632523B (en) | 2012-05-05 | 2012-05-05 | Solid-wood metallic fabric composite soundboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210136473.5A CN102632523B (en) | 2012-05-05 | 2012-05-05 | Solid-wood metallic fabric composite soundboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102632523A CN102632523A (en) | 2012-08-15 |
| CN102632523B true CN102632523B (en) | 2014-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210136473.5A Expired - Fee Related CN102632523B (en) | 2012-05-05 | 2012-05-05 | Solid-wood metallic fabric composite soundboard |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI644803B (en) * | 2017-01-09 | 2018-12-21 | 倉和股份有限公司 | Screen structure of finger electrode for screen printing solar cell and manufacturing method thereof |
| CN106738111B (en) * | 2017-01-24 | 2023-11-07 | 浙江百茂板业有限公司 | Bending-resistant plywood and manufacturing method thereof |
| CN107471384A (en) * | 2017-09-26 | 2017-12-15 | 达州市恒悦乐器有限公司 | A kind of stringed musical instrument adds filament plate material and its processing method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB218293A (en) * | 1923-06-29 | 1924-11-06 | Fridolf Frankel | Improvement in metal sounding plate for musical instruments, other acoustic arrangements, and lecture-rooms |
| GB581954A (en) * | 1944-05-24 | 1946-10-30 | Alfred Edward Knight | Improvements in and connected with soundboards for pianos |
| CN2895048Y (en) * | 2006-04-19 | 2007-05-02 | 章锐 | Reinforced anti-bending woodworking plate |
| CN201975054U (en) * | 2011-03-04 | 2011-09-14 | 晋东军 | Front panel of upright piano |
| CN102371604A (en) * | 2010-08-25 | 2012-03-14 | 陆士昌 | High-intensity metal mesh artificial board |
| CN202556506U (en) * | 2012-05-05 | 2012-11-28 | 东北林业大学 | Solid wood metal mesh composite soundboard |
-
2012
- 2012-05-05 CN CN201210136473.5A patent/CN102632523B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB218293A (en) * | 1923-06-29 | 1924-11-06 | Fridolf Frankel | Improvement in metal sounding plate for musical instruments, other acoustic arrangements, and lecture-rooms |
| GB581954A (en) * | 1944-05-24 | 1946-10-30 | Alfred Edward Knight | Improvements in and connected with soundboards for pianos |
| CN2895048Y (en) * | 2006-04-19 | 2007-05-02 | 章锐 | Reinforced anti-bending woodworking plate |
| CN102371604A (en) * | 2010-08-25 | 2012-03-14 | 陆士昌 | High-intensity metal mesh artificial board |
| CN201975054U (en) * | 2011-03-04 | 2011-09-14 | 晋东军 | Front panel of upright piano |
| CN202556506U (en) * | 2012-05-05 | 2012-11-28 | 东北林业大学 | Solid wood metal mesh composite soundboard |
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| CN102632523A (en) | 2012-08-15 |
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Granted publication date: 20140521 Termination date: 20160505 |