A guitar

Abstract

The utility model discloses a guitar, including the body and the neck, still include the panel, side plate and backboard by the panel of aluminium material preparation, the panel is fixed at the top of the body through welding or adhesion, is provided with the sound beam structure to the back of panel, wherein the big sound beam is transversely arranged, is symmetrically arranged in the upside and downside of sound hole, and the both ends are fixedly connected with the back of panel, and the oblique small sound beam is distributed on the back of panel with the inclination angle, and the vertical small sound beam is arranged along the length direction of the body, and one end is fixedly connected with the big sound beam close to the upside of sound hole, and the other end is fixedly connected with the oblique small sound beam, the side plate is installed at the both sides of the body, and one side is fixedly connected with the edge of panel, and the other side is fixedly connected with the edge of backplate installed at the bottom of the body and constitutes the resonance box of the body. Utilize the aluminium material to make the guitar, guarantee the consistency and stability of tone quality, reduce the cost, improve the efficiency, promote the sustainable development of guitar industry, and the sound beam structure guarantees the stability of sound conduction, so that the guitar does not run the tune and does not walk the sound.

Description

Technical Field

[0001] This utility model relates to the field of musical instrument manufacturing technology, specifically to a guitar made of aluminum with a unique soundbar structure. Technical Background

[0002] As a popular stringed instrument, the quality of the guitar's soundbox largely depends on the material and structure of its soundbox. Traditional guitar making primarily uses wood for the soundbox, such as high-quality woods like Hainan rosewood, Brazilian rosewood, mahogany, and spruce. These woods possess excellent acoustic properties, producing a warm and rich tone. However, this traditional method has several drawbacks:

[0003] First, the production cycle is long and the process is complex. Making a high-quality guitar requires a long process, not only requiring the inheritance of family skills over several generations, but also relying on the rich experience accumulated by craftsmen over decades;

[0004] Secondly, the difficulty in obtaining high-quality timber has caused damage to the ecological environment. The trees needed to make guitars mostly need to grow for hundreds of years, and after being felled, they need to be naturally air-dried for several to several decades before they can be used for making. This has led to the over-logging of virgin forests and caused serious damage to the ecological environment.

[0005] Third, the manufacturing process is complex and the price is high. Due to the complexity of traditional manufacturing processes and the scarcity of production, high-quality guitars remain expensive, making them inaccessible to ordinary consumers.

[0006] With the rapid development of modern technology and the increasing demands for musical instrument quality, finding a new material that can meet the acoustic performance requirements of guitar making while overcoming the drawbacks of traditional wood construction has become an urgent problem in the musical instrument manufacturing industry. Aluminum, due to its density being similar to that of wood, offers new possibilities for guitar making.

[0007] Existing patents, such as CN109265801A, disclose a guitar top, side, or back panel and its preparation method. Specifically, the guitar top, side, or back panel is made of a composite material, which, by weight, comprises: 50-80 parts polyethylene, 50-80 parts polypropylene, 10-20 parts aluminum hydroxide, 10-20 parts 24K carbon fiber, 1-2 parts aluminate coupling agent, 1-2 parts antioxidant DNP, and 2-3 parts DEHP. The preparation method involves melting polyethylene, polypropylene, aluminum hydroxide, 24K carbon fiber, aluminate coupling agent, antioxidant DNP, and DEHP at 260-300℃, cooling to 220-240℃, and then injection molding into a guitar top, side, or back panel mold at 80-100℃. After cooling to room temperature, the initial molded product is sanded flat to obtain the guitar top, side, or back panel. This application addresses the problems of long production cycles, environmental damage, and high prices associated with wooden guitars by using composite materials instead of traditional wood. However, the properties of the raw materials used in this guitar differ significantly from those of wood, making it difficult to guarantee the stability and consistency of the guitar's tone. Therefore, it is essential to develop a guitar that features a simple manufacturing process, improved production efficiency, reduced costs, and excellent and stable sound quality. Summary of the Invention

[0008] The purpose of this invention is to provide a guitar made of aluminum with a unique bracing structure that overcomes the defects of traditional wood-made guitars while ensuring good sound quality. This achieves consistency and stability in guitar sound quality, reduces reliance on high-quality wood, lowers production costs, increases production efficiency, and promotes the sustainable development of the classical guitar industry.

[0009] The technical solution of this utility model is as follows: A guitar, including a body and a neck, characterized in that: it also includes a top, side panels, and a back panel made of aluminum. The top panel is fixed to the top of the guitar body by welding or bonding. A sound beam structure is provided on the back of the top panel. The sound beam structure includes a large sound beam and a small sound beam. The large sound beam is arranged horizontally, spanning the back of the top panel along the width of the guitar body, and is symmetrically arranged above and below the sound hole. Its two ends are fixedly connected to the back of the top panel to provide lateral support for the top panel. The small sound beam includes an oblique small sound beam and a vertical small sound beam. The oblique small sound beam is distributed at an inclined angle on the back of the top panel, and the vertical small sound beam is arranged along the length of the guitar body. One end is fixedly connected to the large sound beam near the upper side of the sound hole, and the other end is fixedly connected to the oblique small sound beam. The side panels are installed on both sides of the guitar body. One side is fixedly connected to the edge of the top panel, and the other side is fixedly connected to the edge of the back panel installed at the bottom of the guitar body to form the soundbox of the guitar body. The shapes of the top panel and the back panel are set according to the shape of the guitar body.

[0010] Furthermore, the thickness of the large sound beam is 6mm and the height is 10mm, with an error not exceeding ±2mm; the thickness of the small sound beam is 4mm and the height is 4mm, with an error not exceeding ±2mm.

[0011] Furthermore, the aluminum material includes pure aluminum or aluminum alloy, and the aluminum alloy type includes any one of the 2 series, 5 series, 6 series or 7 series.

[0012] Furthermore, the thickness of the panel is 1-3mm, and the surface of the panel is glossy or textured.

[0013] Furthermore, the side panel is made of aluminum of the same or different type as the front panel, the thickness of the side panel is 1-2.5mm, and the forming radius error of the side panel bending does not exceed ±3mm.

[0014] Furthermore, the back panel is made of aluminum material of the same or different type as the front panel, and the thickness of the back panel is 1.5-3mm.

[0015] Furthermore, the installation method includes welding or bonding. The welding can be carried out using welding processes such as cold welding, gas welding, argon-fluorine welding, and laser welding. The welding parameters are: welding current 50-200A, welding speed 5-20mm / s, and protective gas flow rate 8-15L / min. The bonding can be carried out using 502 glue, aluminum alloy special glue, or acrylic strong glue, and the curing time is 24-48 hours.

[0016] Furthermore, the neck is made of aluminum, wood, or composite materials and is formed by die casting or stamping.

[0017] Furthermore, the neck is fixed to the back of the instrument by welding or mechanical connection. The mechanical connection method includes bolt connection or mortise and tenon structure. After installation, the angle error between the neck and the instrument body does not exceed ±2° to ensure playing comfort and stability.

[0018] Furthermore, a lower bridge is also provided on the panel.

[0019] This utility model has the following advantages:

[0020] 1. Excellent and stable sound quality: Due to the high consistency of the physical properties of aluminum, the soundbox of the guitar body, which is made of aluminum for the top, back, and sides, can ensure that the sound quality of each guitar is highly consistent. Since different series of aluminum contain different chemical compositions and proportions, the timbre produced will also be different. Therefore, the higher the proportion of aluminum in the material or the pure aluminum guitar, the clearer, softer, brighter, and fuller the timbre will be. In terms of sound quality, it can be compared with guitars made of traditional high-quality wood, effectively solving the problem of unstable sound quality of guitars made of traditional wood.

[0021] 2. Stable sound transmission, preventing out-of-tune and pitch problems: By setting a sound beam structure on the back of the soundboard, the large sound beam is arranged horizontally, spanning the back of the soundboard along the width of the instrument, providing lateral support for the soundboard. The small sound beams include oblique small sound beams and vertical small sound beams. The oblique small sound beams are distributed at an inclined angle on the back of the soundboard, and the vertical small sound beams are arranged along the length of the instrument. One end is fixedly connected to the large sound beam near the upper side of the sound hole, and the other end is fixedly connected to the oblique small sound beams, providing support for the soundboard. This strengthens the stability of the connection between the sound beams and the soundboard, effectively ensuring the stability of sound transmission. This makes the sound transmission of the guitar of this invention uniform and stable between the sound beams, the soundboard, and the sound hole, improving the guitar's sound quality and preventing out-of-tune and pitch problems.

[0022] 3. Reduced costs: Aluminum alloy is a widely used industrial material with abundant resources and a relatively stable price that is lower than that of high-quality guitar-making wood. Using aluminum to make guitars can significantly reduce raw material costs. In addition, the processing technology of aluminum is relatively standardized, resulting in high production efficiency, which can further reduce production costs and improve the economic benefits of enterprises.

[0023] 4. Improve production efficiency: Aluminum has good processing performance and can be automated by using CNC machining equipment. Compared with the complex manual processing in traditional woodworking, it can significantly improve production efficiency, shorten the production cycle, and meet the large-scale market demand for classical guitars.

[0024] 5. Promoting sustainable industrial development: This invention reduces reliance on high-quality timber, helps protect forest resources, and aligns with the concept of sustainable development. Simultaneously, its innovative manufacturing process provides a new direction for the classical guitar industry and promotes advancements in musical instrument manufacturing technology. Attached Figure Description

[0025] Figure 1 This is the front view of the guitar;

[0026] Figure 2 This is a left view of a guitar;

[0027] Figure 3 This is a partial sectional view of a guitar;

[0028] Wherein: 1-Top panel; 2-Bottom bridge; 3-Sound hole; 4-Neck; 5-Large bracing; 6(a)-Small bracing; 6(b)-Small bracing. Detailed Implementation

[0029] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0030] A guitar includes a body and a neck 4, characterized in that: it further includes a top plate 1, side plates, and a back plate made of aluminum. The top plate 1 is fixed to the top of the body by welding or bonding. A sounding beam structure is provided on the back of the top plate. The sounding beam structure includes a large sounding beam 5 and a small sounding beam. The large sounding beam 5 is arranged laterally, spanning the back of the top plate along the width of the body, and is symmetrically arranged above and below the sound hole 3. Its two ends are fixedly connected to the back of the top plate to provide lateral support for the top plate. The small sounding beam includes an oblique small sounding beam 6(a) and a vertical small sounding beam 6(b). The oblique small sounding beam is distributed at an inclined angle on the back of the top plate, and the vertical small sounding beam is arranged along the length of the body. One end is fixedly connected to the large sounding beam near the upper side of the sound hole, and the other end is fixedly connected to the oblique small sounding beam. The side plates are installed on both sides of the body. One side is fixedly connected to the edge of the top plate, and the other side is fixedly connected to the edge of the back plate installed at the bottom of the body to form the soundbox of the body. The shapes of the top plate and the back plate are set according to the shape of the body.

[0031] Furthermore, the thickness of the large sound beam is 6mm and the height is 10mm, with an error not exceeding ±2mm; the thickness of the small sound beam is 4mm and the height is 4mm, with an error not exceeding ±2mm.

[0032] Furthermore, the aluminum material includes pure aluminum or aluminum alloy, and the aluminum alloy type includes any one of the 2 series, 5 series, 6 series or 7 series.

[0033] Aluminum has low density, high strength, and stable chemical properties, which makes it and its alloys widely used in aerospace, automobiles and other fields. Using aluminum or aluminum alloys to make the soundbox of a guitar can ensure the stability and consistency of tone. At the same time, different types of aluminum alloys contain different proportions of chemical components, which transmit different tonal effects. Compared with guitars made of traditional wood, the tone is clearer, softer, brighter and fuller.

[0034] The aluminum materials used in this application include, but are not limited to, pure aluminum, any model from the 2-series, 5-series, 6-series, or 7-series. Each of the 2-series, 5-series, 6-series, and 7-series contains many models, and the chemical composition and content of each series are different, resulting in different tones transmitted by classical guitars. The pure aluminum used is model 1000, the 2-series uses models 2024 and 2A16, the 5-series uses models 5052 and 5083, the 6-series uses models 6061 and 6063, and the 7-series uses model 7075.

[0035] Furthermore, the thickness of the panel is 1-3mm, and the surface of the panel is glossy or textured.

[0036] Furthermore, the side panel is made of aluminum of the same or different type as the front panel, the thickness of the side panel is 1-2.5mm, and the forming radius error of the side panel bending does not exceed ±3mm.

[0037] Furthermore, the back panel is made of aluminum material of the same or different type as the front panel, and the thickness of the back panel is 1.5-3mm.

[0038] Furthermore, the installation method includes welding or bonding. The welding can be carried out using welding processes such as cold welding, gas welding, argon-fluorine welding, and laser welding. The welding parameters are: welding current 50-200A, welding speed 5-20mm / s, and protective gas flow rate 8-15L / min. The bonding can be carried out using 502 glue, aluminum alloy special glue, or acrylic strong glue, and the curing time is 24-48 hours.

[0039] Furthermore, the neck 4 is made of aluminum, wood, or composite material and is formed by die casting or stamping; the composite material includes carbon fiber and polyethylene.

[0040] Furthermore, the neck 4 is fixed to the back plate of the instrument body by welding or mechanical connection. The mechanical connection method includes bolt connection or mortise and tenon structure. After installation, the angle error between the neck and the instrument body does not exceed ±2° to ensure the comfort and stability of playing.

[0041] Furthermore, a lower bridge 2 is also provided on the panel.

[0042] Example 1

[0043] The aluminum classical guitar produced by the inventor in this utility model, such as Figure 1 As shown, the guitar includes a body and neck, as well as a top, back, and sides made of 7075 aluminum alloy. The top is 2mm thick with a textured surface, the back is 3mm thick with a mirror-like finish to enhance sound reflection, and the sides are 2.5mm thick. The top is welded or glued to the top of the body, and the sides are mounted on either side of the body. One side is fixed to the edge of the top, and the other side is fixed to the edge of the back, which is mounted at the bottom of the body, forming the soundbox. Figure 3As shown, a soundboard bracing structure is provided on the back of the soundboard. Specifically, the large soundboard bracing is arranged horizontally, spanning the back of the soundboard along the width of the guitar body, symmetrically positioned above and below the sound holes. Its two ends are fixedly connected to the back of the soundboard, providing lateral support. The smaller soundboard bracing includes diagonal and vertical bracing. The diagonal bracing is distributed at an angle on the back of the soundboard, while the vertical bracing is arranged along the length of the guitar body. One end is fixedly connected to the large soundboard bracing near the sound holes, and the other end is fixedly connected to the diagonal bracing. The edges of the fixed soundboard bracing are polished to make their surface smooth and rounded. This unique soundboard bracing structure not only strengthens the stability of the connection between the soundboard bracing and the soundboard but also effectively ensures the stability of sound transmission. This results in a unified and stable sound transmission between the soundboard bracing, soundboard, and sound holes, improving the guitar's tone quality and stabilizing the timbre, preventing the guitar from going out of tune. The large soundboard bracing has a cross-sectional dimension of 6mm*10mm, and the small soundboard bracing has a cross-sectional dimension of 4mm*4mm.

[0044] In Example 1, the neck of the classical guitar is made of 7075 aluminum material and is formed by die casting or stamping. The neck is fixedly connected to the back plate of the guitar body by welding. After installation, the angle error between the neck and the guitar body does not exceed ±2° to ensure the comfort and stability of playing.

[0045] In Example 1, the aluminum classical guitar top is also provided with a sound hole and a lower bridge.

[0046] The aluminum classical guitars produced in the above embodiments, after being auditioned and tested by professional musicians, demonstrated excellent performance in terms of timbre, sound quality, and playability, achieving the expected design goals. Furthermore, compared to traditional wooden guitars, they possess significant environmental and cost advantages, and have broad market application prospects.

Claims

1. A guitar, comprising a body and a neck (4), characterized in that: It also includes a panel (1), side panels and back panel made of aluminum. The panel (1) is fixed to the top of the instrument body by welding or bonding. A sound beam structure is provided on the back of the panel. The sound beam structure includes a large sound beam (5) and a small sound beam. The large sound beam (5) is arranged horizontally, spanning the back of the panel along the width of the instrument body. It is symmetrically arranged on the upper and lower sides of the sound hole (3). Its two ends are fixedly connected to the back of the panel to provide horizontal support for the panel. The small sound beam includes an oblique small sound beam (6a) and a vertical small sound beam (6b). The oblique small sound beam (6a) is distributed on the back of the panel at an inclined angle. The vertical small sound beam (6b) is arranged along the length of the instrument body. One end is fixedly connected to the large sound beam (5) near the upper side of the sound hole (3), and the other end is fixedly connected to the oblique small sound beam (6a). The side panels are installed on both sides of the instrument body. One side is fixedly connected to the edge of the panel, and the other side is fixedly connected to the edge of the back panel installed at the bottom of the instrument body to form the soundbox of the instrument body. The shapes of the panel and back panel are set according to the shape of the instrument body.

2. A guitar according to claim 1, characterized in that: The thickness of the large sound beam (5) is 6mm and the height is 10mm, with an error not exceeding ±2mm. The thickness of the small sound beam is 4mm and the height is 4mm, with an error not exceeding ±2mm.

3. A guitar according to claim 1, characterized in that: The aluminum material includes pure aluminum or aluminum alloy, and the aluminum alloy type includes any one of the 2 series, 5 series, 6 series or 7 series.

4. A guitar according to claim 1, characterized in that: The thickness of the panel is 1-3mm, and the surface of the panel is glossy or textured.

5. A guitar according to claim 1, characterized in that: The side panel is made of aluminum of the same or different type as the front panel. The thickness of the side panel is 1-2.5mm, and the forming radius error of the side panel bending does not exceed ±3mm.

6. A guitar according to claim 1, characterized in that: The back panel is made of aluminum material of the same or different type as the front panel, and the thickness of the back panel is 1.5-3mm.

7. A guitar according to claim 1, characterized in that: The welding can be performed using cold welding, gas welding, argon-fluorine welding, or laser welding. The welding parameters are: welding current 50-200A, welding speed 5-20mm / s, and shielding gas flow rate 8-15L / min. The bonding can be performed using 502 glue, aluminum alloy special glue, or acrylic strong glue, with a curing time of 24-48 hours.

8. A guitar according to claim 1, characterized in that: The neck (4) is made of aluminum, wood or composite material and is formed by die casting or stamping.

9. A guitar according to claim 8, characterized in that: The neck (4) is fixed to the back plate of the instrument by welding or bolting. After installation, the angle error between the neck and the instrument body shall not exceed ±2° to ensure the comfort and stability of playing.

10. A guitar according to any one of claims 1-9, characterized in that: The lower bridge (2) is also provided on the panel (1).

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