Guitar

Abstract

The guitar comprises a guitar body and a guitar neck, and further comprises a panel, a side plate and a back plate which are made of aluminum materials, the panel is fixed to the top of the guitar body through welding or bonding, a sound beam structure is arranged on the back face of the panel, large sound beams are transversely and symmetrically arranged on the upper side and the lower side of a sound outlet hole, and the two ends of each large sound beam are fixedly connected with the back face of the panel. The oblique small sound beams are distributed on the back surface of the panel at an oblique angle, the vertical small sound beams are arranged along the length direction of the guitar body, one end is fixedly connected with the large sound beam close to the upper side of the sound outlet hole, and the other end is fixedly connected with the oblique small sound beams; the side plates are mounted on two sides of the guitar body, one side is fixedly connected with the edge of the panel, and the other side is fixedly connected with the edge of the back plate mounted at the bottom of the guitar body to form a resonator of the guitar body. The guitar is made of aluminum materials, consistency and stability of tone quality are guaranteed, cost is reduced, efficiency is improved, sustainable development of the guitar industry is promoted, the sound beam structure guarantees stability of sound conduction, and the guitar does not run and move.

Description

Technical Field

[0001] The invention relates to the technical field of musical instrument manufacturing, and in particular to a guitar made of aluminum and having a unique sound beam structure. Technical Background

[0002] The guitar, a beloved string instrument, relies heavily on the material and structure of its resonance box for its sound quality. Traditional guitar construction primarily uses wood for its resonance box. These woods have excellent acoustic properties and produce a warm, rich tone. However, this traditional construction method has several drawbacks:

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

[0004] Second, high-quality wood is difficult to obtain, which damages the ecological environment. Most of the trees needed to make guitars need to grow for hundreds or even thousands of years, and after being cut down, they need to be naturally dried for several years to decades before they can be used for production.

[0005] Third, the production process is complex and the price is high. Due to the complex production process and the low production volume, the price of high-quality guitars remains high, making them out of reach for ordinary consumers.

[0006] With the rapid development of modern technology and the increasing demand for musical instrument quality, finding a new material that can meet the acoustic performance requirements of guitar production while overcoming the shortcomings of traditional wood has become a pressing issue in the field of musical instrument manufacturing. Aluminum, with its density similar to that of wood, offers new possibilities for guitar production.

[0007] Existing publications such as CN109265801A, titled "A Guitar Top, Sides, or Back, and Method for Preparing the Same," specifically disclose that the guitar top, sides, or back are made of a composite material. The composite material comprises, by weight, 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 DNP (antioxidant), and 2-3 parts DEHP. The preparation method involves melting the polyethylene, polypropylene, aluminum hydroxide, 24K carbon fiber, aluminate coupling agent, DNP (antioxidant), and DEHP at 260-300°C, cooling to 220-240°C, and then injection molding the melt into a guitar top, sides, or back mold at 80-100°C. The melt is then cooled to room temperature, and the resulting preformed product is polished to a smooth finish. This results in the guitar top, sides, or back. This application addresses the long production cycle, ecological damage, and high cost associated with wood-based guitars by replacing traditional wood with composite materials. However, the raw materials used in this application differ significantly from wood in terms of performance, making it difficult to ensure the stability and consistency of the guitar's tone. Therefore, it is crucial to develop a guitar that simplifies production processes, improves production efficiency, reduces costs, and still delivers excellent and consistent sound quality. Summary of the Invention

[0008] The present invention aims to provide a guitar made of aluminum, which has a unique sound beam structure. While ensuring good sound quality, it overcomes the defects of traditional wood-made guitars, achieves consistency and stability in guitar sound quality, reduces dependence on high-quality wood, reduces production costs, improves production efficiency, and promotes the sustainable development of the classical guitar industry.

[0009] The technical solution of the present invention is: a guitar, comprising a body and a neck, characterized in that it also includes a panel, side panels and a back panel made of aluminum material, the panel being fixed to the top of the body by welding or bonding, and a sound beam structure being provided on the back of the panel, the sound beam structure including a large sound beam and a small sound beam, wherein the large sound beam is arranged horizontally, spanning the back of the panel along the width direction of the body, and symmetrically arranged on the upper and lower sides of the sound hole, and its two ends are fixedly connected to the back of the panel to provide lateral support for the panel, the small sound beam includes an oblique small sound beam and a vertical small sound beam, the oblique small sound beam is distributed on the back of the panel at an oblique angle, the vertical small sound beam is arranged along the length direction of the 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 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 body to form a resonance box of the body; the shapes of the panel and the back panel are set corresponding to the shape of the body.

[0010] Furthermore, the thickness of the large sound beam is 6 mm and the height is 10 mm, with an error of no more than ±2 mm; the thickness of the small sound beam is 4 mm and the height is 4 mm, with an error of no more than ±2 mm.

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

[0012] Furthermore, the thickness of the panel is 1-3 mm, and the surface of the panel is smooth or has a textured structure.

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

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

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

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

[0017] Furthermore, the neck is fixed to the back panel of the guitar 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 guitar body does not exceed ±2° to ensure the comfort and stability of playing.

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

[0019] The beneficial effects of the present invention are:

[0020] 1. Excellent and stable sound quality. Due to the high consistency of the physical properties of aluminum, the use of aluminum panels, back panels and side panels to form the body resonance box can ensure that the sound quality of each guitar is highly consistent. Due to the different chemical compositions and proportions of different series of aluminum, the timbre produced will also be different. Therefore, the higher the proportion of aluminum or the pure aluminum content of the guitar, the clearer, softer, brighter and fuller the tone produced. The sound quality is comparable to that of guitars made of traditional high-quality wood, which effectively solves the problem of unstable sound quality of guitars made of traditional wood.

[0021] 2. Stable sound conduction to avoid pitch deviation; by arranging a sound beam structure on the back of the panel, the large sound beam is arranged horizontally and spans the back of the panel along the width direction of the guitar body to provide lateral support for the panel, and the small sound beam includes an oblique small sound beam and a vertical small sound beam. The oblique small sound beam is distributed on the back of the panel at an inclined angle, and the vertical small sound beam is arranged along the length direction 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, providing support for the panel, strengthening the stabilizing effect of the combination of the sound beam and the panel, and effectively ensuring the stability of sound conduction, so that the sound conduction of the guitar of the present invention between the sound beam, the panel and the sound hole is unified and stable, thereby improving the sound quality of the guitar and avoiding pitch deviation.

[0022] 3. Reduce costs. Aluminum alloy is a widely used industrial material with abundant resources and a relatively stable price, lower than that of high-quality guitar-making wood. Using aluminum to make guitars can significantly reduce raw material costs. In addition, aluminum processing technology is relatively standardized and highly efficient, further reducing production costs and improving the company's economic benefits.

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

[0024] 5. Promote sustainable industrial development: This invention reduces reliance on high-quality wood, helps protect forest resources, and aligns with the concept of sustainable development. Furthermore, its innovative manufacturing process provides a new direction for the development of the classical guitar industry and promotes advancements in instrument manufacturing technology. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0027] Figure 3 It is a partial cutaway view of the guitar;

[0028] Among them: 1-top panel; 2-lower bridge; 3-sound hole; 4-neck; 5-large sound beam; 6(a)-small sound beam; 6(b)-small sound beam. DETAILED DESCRIPTION

[0029] The present invention will be described in detail below with reference to specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those skilled in the art, several variations and improvements can be made without departing from the scope of the present invention. These all fall within the scope of protection of the present invention.

[0030] A guitar comprises a body and a neck 4, characterized in that it also comprises a panel 1, side panels and a back panel made of aluminum, the panel 1 being fixed to the top of the body by welding or bonding, a sound beam structure being provided on the back of the panel, the sound beam structure comprising a large sound beam 5 and a small sound beam, wherein the large sound beam 5 is arranged transversely, spanning the back of the panel along the width direction of the body, and symmetrically arranged on the upper and lower sides of a sound hole 3, with its two ends fixedly connected to the back of the panel to provide lateral support for the panel, the small sound beams comprising an oblique small sound beam 6 (a) and a vertical small sound beam 6 (b), the oblique small sound beams being distributed on the back of the panel at an oblique angle, the vertical small sound beams being arranged along the length direction of the body, one end being fixedly connected to the large sound beam near the upper side of the sound hole, and the other end being fixedly connected to the oblique small sound beam; the side panels being installed on both sides of the body, one side being fixedly connected to the edge of the panel, and the other side being fixedly connected to the edge of the back panel installed at the bottom of the body to form a resonance box of the body; the shapes of the panel and the back panel are set correspondingly according to the shape of the body.

[0031] Furthermore, the thickness of the large sound beam is 6 mm and the height is 10 mm, with an error of no more than ±2 mm; the thickness of the small sound beam is 4 mm and the height is 4 mm, with an error of no more than ±2 mm.

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

[0033] Aluminum has low density, high strength, and stable chemical properties, which makes aluminum and its alloys widely used in aviation, automobiles and other fields. Using aluminum or aluminum alloys to make the resonance box of a guitar can ensure the stability and consistency of the tone. At the same time, different types of aluminum alloys contain different chemical composition ratios, and the tone effects they convey are different. Compared with guitars made of traditional wood, the tone of the guitar is clearer, softer, brighter and fuller.

[0034] The aluminum materials used in this application include but are not limited to pure aluminum, any of the 2 series, 5 series, 6 series, or 7 series models, wherein the 2 series, 5 series, 6 series, and 7 series each include many models. Each series has different chemical compositions and contents, and the timbre of the classical guitar will be different. The pure aluminum uses 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 1-3 mm, and the surface of the panel is smooth or has a textured structure.

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

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

[0038] Furthermore, the installation method includes welding or bonding. The welding can be performed using cold welding, gas welding, argon fluorine welding, laser welding and other welding processes. The welding parameters are: welding current 50-200A, welding speed 5-20mm / s, shielding gas flow 8-15L / min. The bonding can be performed using 502 glue, aluminum alloy special glue or acrylic super 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 material and polyethylene material.

[0040] Furthermore, the neck 4 is fixed to the back panel of the piano 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 piano body does not exceed ±2° to ensure the comfort and stability of playing.

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

[0042] Example 1

[0043] The aluminum classical guitar made by the inventor of the present invention is Figure 1 As shown, the guitar includes a body and neck, as well as a top, back, and side panels made of 7075 aluminum. The top is 2 mm thick and has a textured surface. The back is 3 mm thick and has a mirror-like surface finish to enhance sound reflection. The side panels are 2.5 mm thick. The top is fixed to the top of the body by welding or gluing. The side panels are installed on both sides of the body, with one side fixedly connected to the edge of the top and the other side fixedly connected to the edge of the back panel installed at the bottom of the body to form the resonance box of the body. Figure 3As shown, the back of the guitar top features a bracing structure. Specifically, the large bracing is arranged horizontally, spanning the back of the guitar top along the width of the guitar body. It is symmetrically positioned above and below the sound hole, with its ends fixed to the back of the guitar top, providing lateral support. The small bracing consists of diagonal bracing and vertical bracing. The diagonal bracing is arranged at an angle on the back of the guitar top, while the vertical bracing runs the length of the guitar body, with one end fixed to the large bracing near the top of the sound hole and the other to the diagonal bracing. The edges of the fixed bracings are polished to a smooth, rounded surface. This unique bracing structure not only strengthens the connection between the bracing and the guitar top, but also effectively ensures the stability of sound transmission. This ensures uniform and stable sound transmission between the bracing, guitar top, and sound hole, enhancing the guitar's sound quality and stabilizing the tone, ensuring the guitar remains in tune. The large bracing measures 6mm by 10mm, while the small bracing measures 4mm by 4mm.

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

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

[0046] The aluminum classical guitar produced in the above embodiment has been auditioned and tested by professional musicians and has demonstrated excellent timbre, sound quality, and playing performance, achieving the intended design goals. Furthermore, compared to traditional wooden guitars, it offers significant environmental and cost advantages, and has broad market application prospects.

Claims

1. A guitar comprising a body and a neck (4), characterized in that: The instrument further comprises a panel (1), side panels and a back panel made of aluminum material, wherein the panel (1) is fixed to the top of the instrument body by welding or bonding, and a sound beam structure is provided on the back of the panel, wherein the sound beam structure comprises a large sound beam (5) and a small sound beam, wherein the large sound beam (5) is arranged in a transverse direction, spanning the back of the panel along the width direction of the instrument body, and symmetrically arranged on the upper and lower sides of the sound hole (3), and its two ends are fixedly connected to the back of the panel to provide transverse support for the panel, and the small sound beam comprises an oblique small sound beam (6a) and a vertical small sound beam (6b), wherein the oblique small sound beam (6a) is distributed on the back of the panel at an oblique angle, and the vertical small sound beam (6b) is arranged along the length direction of the instrument body, and 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 a resonance box of the instrument body; the shapes of the panel and the back panel are set correspondingly 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 6 mm, the height is 10 mm, and the error does not exceed ±2 mm; the thickness of the small sound beam is 4 mm, the height is 4 mm, and the error does not exceed ±2 mm.

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

4. The guitar according to claim 1, wherein: The thickness of the panel is 1-3 mm, and the surface of the panel is smooth or has a textured structure.

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

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

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

8. The 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. The guitar according to claim 8, characterized in that: The neck (4) is fixed to the back plate of the instrument body by welding or mechanical connection, and 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.

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

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