A guitar tone improving block and a guitar

Abstract

The utility model discloses a guitar tone improvement block and guitar relates to guitar tone optimization technical field. The utility model is attached and is arranged in the waist side wall of guitar inner chamber, and with the front inner wall and back inner wall of guitar inner chamber inlay abuts against, including, with the inlay surface of side wall combination of guitar inner chamber and the acoustic reflection surface of the direction of guitar inner chamber, the acoustic reflection surface constructs the cambered surface reflection part to the waist position of guitar inner chamber, the thickness between acoustic reflection surface with the inlay surface gradually reduces along the direction of away from the waist of guitar, through directional control waist sound wave reflection behavior, synchronous realization sound frequency separation degree promotion, propagation efficiency optimization, structural reinforcement and tone adjustable fourfold target's purpose.

Description

Technical Field

[0001] This utility model relates to the field of guitar tone optimization technology, specifically, a guitar tone improvement block and a guitar. Background Technology

[0002] Traditional acoustic guitars rely on the acoustic resonance of the internal cavity of the body to amplify sound and shape tone. However, this structure has some inherent defects. For example, high, mid, and low frequency sound waves produce disordered reflections and phase interference in the unstructured waist groove area (i.e., the narrowest part of the body), resulting in insufficient frequency separation and reduced tonal clarity; sound waves must travel around the curved surface of the cavity to propagate from the vibration source (bridge), resulting in a circuitous path and significant energy attenuation; moreover, the waist is a stress concentration area of ​​the guitar body, and the thin-walled groove structure is prone to deformation under changes in temperature and humidity, leading to sound hole collapse or soundboard cracking after long-term use. Utility Model Content

[0003] The purpose of this invention is to provide a guitar tone improvement block and a guitar, which simultaneously achieves four objectives: improved audio frequency separation, optimized propagation efficiency, structural reinforcement, and adjustable tone by directionally controlling the sound wave reflection behavior at the waist.

[0004] To achieve the above objectives, the present invention employs the following technical means: A guitar tone-enhancing block is attached to the waist side wall of the guitar cavity and abuts against the front and back inner walls of the guitar cavity. This includes a mating surface that engages with the sidewalls of the guitar's inner cavity and an acoustically reflective surface that faces the guitar's inner cavity; The acoustic reflector has an arc-shaped reflective part corresponding to the waist position of the guitar cavity, and the thickness between the acoustic reflector and the bonding surface gradually decreases along the direction away from the waist of the guitar.

[0005] Preferably, the arc-shaped reflective part is a reflective arc surface concentrically arranged with the waist-shaped arc surface of the guitar's inner cavity, the curvature direction of the reflective arc surface is arranged towards the guitar's sound hole, and the acoustic reflective surface is constructed as a connecting arc surface in a direction away from the arc-shaped reflective part, the curvature direction of the connecting arc surface is opposite to that of the arc-shaped reflective part.

[0006] Furthermore, the maximum distance L between the end of the arc-shaped reflective part and the waist position of the guitar cavity is greater than 1cm and does not exceed two-thirds of the distance between the waist of the guitar cavity and the sound hole.

[0007] Furthermore, the minimum distance between the acoustic reflective surface and the bonding surface is not less than 1 cm.

[0008] Furthermore, the length of the acoustic reflective surface along the length of the guitar is not less than one-eighth of the total length of the guitar body.

[0009] Furthermore, the material density of the tone-enhancing block is matched according to the tone requirements; When a brighter tone is required, the density of the tone-enhancing block is greater than the density of the guitar body material; When a softer tone is required, the density of the tone-improving block is less than the density of the guitar body material.

[0010] Furthermore, the acoustic reflective surface is configured as a rough surface.

[0011] Meanwhile, a guitar has the aforementioned guitar tone-enhancing block fitted into the waist area of ​​its inner cavity.

[0012] This utility model has the following beneficial effects during use: After being installed inside the guitar's cavity, the tone-enhancing block forms a substantial space on the inner wall of the guitar, positioned at the waist of the cavity, thus reducing the internal cavity volume in that area. This overall reduction in cavity volume, combined with the addition of curved reflectors, provides a more direct sound wave reflection path, shortening the propagation time of sound waves from string vibration through the bridge to the soundhole. This addresses the time difference compression of high, mid, and low frequency sound waves reaching the soundhole, eliminating phase cancellation caused by path differences in traditional cavities, and further reducing sound wave interference. Simultaneously, the varying thickness of the entire enhancement block optimizes the sound wave propagation path and reflection, creating more pronounced differences in the propagation paths and reflection characteristics of high, mid, and low frequencies. Consequently, the frequency response is more clearly discernible when the sound finally radiates from the soundhole. Furthermore, in addition to optimizing and adjusting the guitar's tone, installing the tone-enhancing block inside the guitar's cavity also increases the stability of the entire guitar body, making it more resistant to pressure. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the assembly structure of the guitar tone improvement block and the guitar according to this utility model.

[0014] Figure 2 This is a second-view structural diagram of the assembly structure of the guitar tone improvement block and the guitar according to this utility model.

[0015] Figure 3 for Figure 1 A top-view structural diagram.

[0016] Among them, 100-tone improvement block, 1-guitar cavity, 2-fitting surface, 3-acoustic reflective surface, 31-arc reflective part, 32-connecting arc surface, 4-sound hole, 5-guitar body. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please refer to Figure 1As shown, a guitar tone-enhancing block is attached to the waist side wall of the guitar cavity 1 and abuts against the front and back inner walls of the guitar cavity 1. This includes a mating surface 2 that engages with the sidewall of the guitar cavity 1 and an acoustic reflective surface 3 facing the guitar cavity 1; The acoustic reflective surface 3 is configured with an arc-shaped reflective part 31 at the waist position of the guitar inner cavity 1, and the thickness between the acoustic reflective surface 3 and the bonding surface 2 gradually decreases along the direction away from the waist of the guitar.

[0024] In this way, after the tone-enhancing block 100 is installed inside the guitar cavity, it forms a substantial space on the inner wall of the guitar cavity, and is installed at the waist position of the guitar cavity 1, reducing the internal cavity volume in this area. This reduces the overall volume of the guitar cavity 1. By reducing the cavity volume and setting the curved reflector 31, a more direct sound wave reflection path is provided, shortening the propagation time of sound waves from the vibrating strings through the bridge to the sound hole 4. This solves the problem of time difference compression of high, mid, and low frequency sound waves reaching the sound hole 4, eliminates phase cancellation caused by path differences in traditional cavities, and thus reduces sound wave interference. At the same time, combined with the thickness variation of the entire enhancement block, the sound wave propagation path and reflection are optimized, making the propagation path and reflection characteristics of high, mid, and low frequency sounds more distinct, so that the frequency response characteristics are more clearly distinguishable when the sound finally radiates from the sound hole 4.

[0025] Specifically, the arc-shaped reflective part 31 is a reflective arc surface concentrically arranged with the waist-shaped arc surface of the guitar cavity 1. The curvature direction of the reflective arc surface is set towards the sound hole 4 of the guitar. The acoustic reflective surface 3 is constructed as a connecting arc surface 32 in a direction away from the arc-shaped reflective part 31. The connecting arc surface 32 is set opposite to the curvature direction of the arc-shaped reflective part 31. The gradually decreasing thickness of the connecting arc surface 32 can be used to smoothly transition the acoustic response. By forming a smooth transition zone with gradually decreasing thickness, it is used to avoid acoustic abrupt changes or boundary effects.

[0026] The larger the radius of curvature of the curved reflector 31, the smoother the sound propagation and the softer the tone. Furthermore, the directionality of the sound waves propagating through the tone hole 4 is more deviated from the axis of the tone hole 4. Conversely, the smaller the radius of curvature of the curved reflector 31, the brighter the guitar sound, and the more parallel the directionality of the sound waves propagating from the tone hole 4 is to the axis of the tone hole 4, which is more conducive to sound diffusion.

[0027] Therefore, after setting the curved reflector 31, different curved reflectors 31 with different radii of curvature can be set as needed to adjust the tone of the guitar.

[0028] Furthermore, the maximum distance L between the end of the arc-shaped reflective part 31 and the waist position of the guitar cavity 1 is greater than 1cm and does not exceed two-thirds of the distance between the waist of the guitar cavity 1 and the sound hole 4.

[0029] Furthermore, the minimum distance between the acoustic reflective surface 3 and the bonding surface 2 is not less than 1 cm.

[0030] Regarding the aforementioned distance L, if it is too wide, it will affect the volume of the cavity. If it is too wide, the guitar's internal cavity will be compressed smaller, and the sound, after exiting through the tone hole 4, will be more direct and parallel to the axis of the tone hole 4, resulting in a poorer resonance effect. However, if the distance L is too small, i.e., less than 1cm, even after setting up the improvement block, there will be no improvement in the guitar's tone.

[0031] Furthermore, and even more optimally, the extension length of the acoustic reflective surface 3 along the length direction of the guitar is not less than one-eighth of the total length of the guitar body 5.

[0032] Furthermore, the density of the tone-improving block also affects the guitar's tone. Specifically, the material density of the tone-improving block 100 is matched according to the tone requirements; When a brighter tone is required, the density of the tone-enhancing block 100 is greater than the density of the guitar body material 5; When a softer tone is required, the density of the tone-improving block 100 is less than the density of the guitar body material 5.

[0033] Therefore, based on the fact that sound waves travel at different densities, the aforementioned density adjustment can directly affect the sound wave reflection speed and timbre characteristics.

[0034] Furthermore, the acoustic reflecting surface 3 is configured as a rough surface. That is, the rough surface of the acoustic reflecting surface 3 can also adjust the timbre. Specifically, this is achieved by adjusting the roughness of the acoustic reflecting surface 3. When it becomes smooth, the sound waves are reflected quickly, and the sound is bright; when it becomes rough, the sound waves are reflected slowly, and the sound becomes soft.

[0035] Moreover, in the aforementioned embodiments, the guitar tone improvement block 100 is made of wood or metal materials with different densities.

[0036] Furthermore, based on the aforementioned embodiments, adding a tone-enhancing block 100 inside the guitar can improve the clarity and separation of its high, mid, and low frequencies. It also enhances the directivity and diffusion of sound after it exits the soundhole 4, improves the rigidity and pressure resistance of the cabinet structure, and provides tone adjustability.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A guitar tone-enhancing block, characterized in that, It is attached to the waist side wall of the guitar cavity (1) and fits against the front and back inner walls of the guitar cavity (1); Including a mating surface (2) that is combined with the side wall of the guitar cavity (1) and an acoustic reflecting surface (3) facing the guitar cavity (1). The acoustic reflective surface (3) is configured with an arc-shaped reflective part (31) at the waist position of the guitar cavity (1), and the thickness between the acoustic reflective surface (3) and the mating surface (2) gradually decreases along the direction away from the waist of the guitar.

2. The guitar tone improvement block according to claim 1, characterized in that, The arc-shaped reflective part (31) is a reflective arc surface that is concentrically set with the waist arc surface of the guitar cavity (1). The curvature direction of the reflective arc surface is set towards the sound hole (4) of the guitar. The acoustic reflective surface (3) is constructed as a connecting arc surface (32) in a direction away from the arc-shaped reflective part (31). The connecting arc surface (32) is set opposite to the curvature direction of the arc-shaped reflective part (31).

3. A guitar tone-enhancing block according to claim 1 or 2, characterized in that, The maximum distance L between the end of the arc-shaped reflective part (31) and the waist position of the guitar cavity (1) is greater than 1cm and does not exceed two-thirds of the distance between the waist of the guitar cavity (1) and the sound hole (4).

4. A guitar tone-enhancing block according to claim 1 or 2, characterized in that, The minimum distance between the acoustic reflective surface (3) and the bonding surface (2) is not less than 1 cm.

5. A guitar tone-improving block according to claim 1, characterized in that, The acoustic reflective surface (3) extends along the length of the guitar by no less than one-eighth of the total length of the guitar body (5).

6. A guitar tone-enhancing block according to claim 1, characterized in that, The material density of the tone-enhancing block (100) is matched according to the tone requirements; When a brighter tone is required, the density of the tone-enhancing block (100) is greater than the density of the guitar body (5) material; When a softer tone is required, the density of the tone-enhancing block (100) is less than the density of the guitar body material (5).

7. A guitar tone-improving block according to claim 1, characterized in that, The acoustic reflective surface (3) is configured as a rough surface.

8. A guitar, characterized in that, A guitar tone-enhancing block (100) as described in any one of claims 1 to 7 is fitted into the waist position of the inner cavity.

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