Soundboard and guitar body thereof

Abstract

The soundboard comprises a board body, an X-shaped main sound beam and an arc groove, the board body is provided with a sound hole, the X-shaped main sound beam is provided with two mutually connected main sound beams and a plurality of hollow through holes, each main sound beam is divided into a main beam head section and a main beam tail section through an intersection point of the X-shaped main sound beams, and the main beam head section and the main beam tail section are connected through the arc groove. The hollow-out through holes are formed in the plate body, the outline size of each hollow-out through hole is gradually reduced from the intersection point to the outer edge of the guitar body, the arc grooves are formed in the plate body and spaced from the outer edge of the plate body, one end of each arc groove is adjacent to the main beam head section of one main sound beam, and the other end of each arc groove is adjacent to the main beam head section of the other main sound beam. And the arc groove passes through the lower part of the main beam tail section of one main sound beam, so that the resonance effect of the guitar body can be improved, and the sound is fuller and richer.

Description

Technical Field

[0001] This utility model relates to a soundboard and body for an acoustic guitar, and more particularly to a soundboard and body for increasing the resonance effect of the guitar body to make the sound fuller and richer. Background Technology

[0002] As a popular and beloved instrument, the acoustic guitar's design and manufacturing details have a crucial impact on its tone and playing experience. However, guitars from different brands and models may have some design flaws that can affect their durability or tonal performance.

[0003] First, the neck is one of the core structures of an acoustic guitar. The neck bears the tension of the strings and directly affects the feel and stability during playing. When the neck bears the tension of the strings for a long time, it is prone to bending or deformation. In particular, because wood itself is highly sensitive to temperature and humidity, the bending or deformation of the neck is especially noticeable in environments with large humidity changes. Once the neck is bent, it will not only affect the guitar's intonation, but also make the player feel uncomfortable, and may even require professional repair to adjust or replace the neck.

[0004] Secondly, the soundboard structure inside the guitar body also has a significant impact on tone. The soundboard is an important component that supports the soundboard and is also responsible for regulating the vibration mode of the soundboard. However, if the soundboard is not designed properly, if the soundboard is too high or too thick, it will not only make the structure too strong and too heavy, but will also make the soundboard vibrate too inefficiently, resulting in a less rich tone and insufficient resonance in the acoustic guitar. If the soundboard is too thin or too small, although it can effectively improve the tone and volume, the soundboard is easily deformed due to changes in temperature and humidity, exceeding the allowable value. Summary of the Invention

[0005] The main purpose of this invention is to provide an improved soundboard. The improved soundboard can improve the efficiency of high-frequency overtone vibration of the neck and enable its high-frequency timbre to enter the soundbox and be amplified by resonance. This can effectively solve the problem of low volume and insufficient sustain (Wolf tone phenomenon) at specific frequencies (such as G#) during playing. It can also increase the resonance effect of the body of the instrument, making the sound fuller and improving the multi-layered overtone effect that can be clearly heard during playing, thereby enriching the overall timbre.

[0006] The secondary objective of this invention is to provide an improved X-shaped main soundboard and its body. The purpose of the soundboard is to strengthen the soundboard structure and make it less prone to deformation. The improved hollowed-out X-shaped main soundboard can reduce the weight of the X-shaped main soundboard without weakening the soundboard structure. This lightweight X-shaped main soundboard will improve the vibration efficiency of the soundboard, thereby significantly improving the volume and tone of the acoustic guitar. At the same time, it can avoid weakening the structure of the soundboard during the process of improving the volume and tone, and the soundboard can be prevented from deforming due to the tension of the strings.

[0007] Another objective of this invention is to improve the vibration elasticity of the soundboard and its body, thereby effectively increasing the vibration efficiency of the soundboard and further enhancing the overall volume to achieve a balanced tone.

[0008] To achieve the aforementioned objective, this utility model provides a soundboard, comprising: a board body, an X-shaped main sound beam, and an arc-shaped groove. The board body has a sound hole, the X-shaped main sound beam connects to the board body and has two interconnected main sound beams and a plurality of hollow through holes formed in the main sound beams. The connection between the two main sound beams is set as an intersection point, such that each main sound beam is distinguished into a main beam head section and a main beam tail section through the intersection point, and the size of each contour of the plurality of hollow through holes gradually decreases from the intersection point toward the outer edge of the board body.

[0009] The curved groove is formed on the plate and spaced at the outer edge of the plate. One end of the curved groove is adjacent to the head section of one of the main sound beams, and the other end of the curved groove is adjacent to the head section of the other main sound beam. The curved groove passes under the tail section of one of the main sound beams.

[0010] In this embodiment, the soundboard has a transverse sound beam connecting the board body. The transverse sound beam is located between the head sections of the two main sound beams. The head sections of the two main sound beams and the transverse sound beam are all located around the sound hole, so that the sound hole is located between the head sections of the two main sound beams and the transverse sound beam.

[0011] In addition, the soundboard has an auxiliary sound beam connecting the board body. The auxiliary sound beam is located between the tail sections of the two main sound beams, and the end of the auxiliary sound beam is located in one of the hollow through holes. One end of the auxiliary sound beam is adjacent to the tail section of the main beam, and the other end of the auxiliary sound beam is adjacent to the curved groove.

[0012] Each of the main sound beams has a thick section in the central region and a thin section with a height or width smaller than the thick section on opposite sides of the thick section. The intersection is formed in the thick sections of the two main sound beams. The curved groove has multiple curved groove segments, which are spaced apart from each other along the outer edge of the plate.

[0013] Furthermore, this utility model provides a piano body, which has a soundboard, a backboard and a sideboard, with the opposite sides of the sideboard respectively connected to the soundboard and the sideboard.

[0014] The feature of this invention is that the X-shaped main sound beam of the soundboard has multiple hollow through holes. The size of each hollow through hole gradually decreases from the intersection of the X-shaped main sound beams toward the outer edge of the soundboard. In addition, the two ends of the curved groove of the soundboard are respectively adjacent to the head section of another main beam of the X-shaped main sound beam, and the curved groove passes under the tail section of one of the main beams of the X-shaped main sound beams. In this way, the body can increase the resonance effect of the body to make the sound fuller, and enhance the multi-layered overtone effect that can be clearly heard when playing, thereby enriching the overall timbre.

[0015] In addition, each of the X-shaped main sound bars has a thick section and a thin section, making the height or width of the main sound bars different. Furthermore, the X-shaped main sound bars have multiple hollowed-out holes to reduce the overall weight of the X-shaped main sound bars. This hollowed-out X-shaped main sound bars can reduce the weight of the X-shaped main sound bars without weakening the sound bar structure. This lightweight X-shaped main sound bars will improve the vibration efficiency of the soundboard, thereby greatly improving the volume and tone of the acoustic guitar. At the same time, it can prevent the structure of the soundboard from being weakened in the process of improving the volume and tone, and the soundboard can be prevented from being deformed by the tension of the strings.

[0016] Furthermore, the curved grooves are arranged in multiple spaced-apart curved groove segments around the soundboard, so that the curved grooves present a discontinuous appearance through multiple spaced-apart curved grooves. This allows the soundboard to reduce the constraint at the joint with the side plate when vibrating, thereby improving the vibration efficiency of the soundboard, further enhancing the overall volume and achieving the effect of balancing the tone. Attached Figure Description

[0017] Figure 1 This is a perspective view of the wooden guitar of this utility model;

[0018] Figure 2 This is an exploded view of the wooden guitar of this utility model;

[0019] Figure 3 for Figure 2 Exploded view of the middle body of the instrument;

[0020] Figure 4 for Figure 3A schematic diagram of the midrange board;

[0021] Figure 5A A schematic diagram showing that the bottom surface of the main sound bar and the plate are connected to each other in a horizontal manner.

[0022] Figure 5B A schematic diagram showing how the bottom surface of the main sound beam and the plate are connected to each other in an arc shape;

[0023] Figure 5C A schematic diagram showing that the width of the thin section of a beam is less than the width of the thick section of a beam.

[0024] Figure 6 for Figure 2 Exploded view of the neck of the zhongqin;

[0025] Figure 7 This is a cross-sectional view of the instrument neck;

[0026] Figure 8 A schematic diagram showing how the frame rods are used to adjust the curvature of the neck.

[0027] Figure labeling: 1-Acoustic guitar; 10-Body; 11-Soundboard; 111-Board; 111a-Soundhole; 112-X-shaped main soundbar; 112a-Main soundbar; 112a1-Crossing point; 112a2-Head section of main soundbar; 112a3-Tail section of main soundbar; 112a4-Bottom surface of soundbar; 112a5-Thick section of soundbar; 112a6-Thin section of soundbar; 112b-Thickened through hole; 113-Horizontal soundbar; 113a-Connecting hole; 114-Auxiliary soundbar; 115-Curved groove; 115a - Curved groove section; 116 - Bridge; 12 - Back plate; 13 - Side plate; 14 - Resonance chamber; 20 - Neck; 21 - Neck; 211 - Neck post; 211a - Mounting surface; 211b - Shaped surface; 211c - Groove; 211c1 - Groove side; 211c2 - Groove bottom; 211d - Center channel; 212 - Root; 213 - Adjustment frame rod; 214 - Carbon fiber strip; 22 - Headstock; 23 - Fingerboard; 24 - Knobs; 30 - Strings; D - Spacing distance. Detailed Implementation

[0028] The present invention will be further described below with reference to specific embodiments and accompanying drawings. The advantages and features of the present invention will become clearer with the description.

[0029] Please see Figure 1 and Figure 2 As shown, the wooden guitar 1 of this utility model mainly consists of a body 10 and a neck 20. Please refer to [link / reference]. Figure 2 , Figure 3 and Figure 4As shown, the body 10 of the instrument has three parts: a soundboard 11, a back plate 12, and a side plate 13. The soundboard 11 is connected to one end of the side plate 13, and the back plate 12 is connected to the other end of the side plate 13, so that the soundboard 11, back plate 12, and side plate 13 together form a resonance chamber 14. The soundboard 11 includes: a plate body 111, an X-shaped main sound bar 112, a transverse sound bar 113, multiple auxiliary sound bars 114, an arc groove 115, and a bridge 116. As shown, the plate body 111 forms a sound hole 111a that connects to the resonance chamber 14. The X-shaped main sound bar 112 has two interconnected main sound bars 112a and multiple sound bars formed on the main sound bars 112a. The perforated through-holes 112b are arranged such that the connection between the two main sound beams 112a is set at an intersection point 112a1, so that each main sound beam 112a is divided into a main beam head section 112a2 and a main beam tail section 112a3 through the intersection point 112a1. Furthermore, each main sound beam 112a has a bottom surface 112a4 that can contact the plate body 111. The multiple perforated through-holes 112b are arranged from the intersection point 112a1 towards the outer edge of the plate body 111 according to their outline size, such that the perforated through-hole 112b with the largest outline is closer to the intersection point 112a1, and the perforated through-hole 112b with the largest outline is closer to the plate body 111. In a preferred embodiment, please refer to... Figure 5A As shown, the bottom surface 112a4 of the main sound beam 112a is horizontally connected to the horizontally oriented plate 111, allowing the bottom surface 112a4 to contact the plate 111. This results in the X-shaped main sound beam 112 connecting to the plate 111 and located inside the resonance chamber 14. However, the horizontal orientation of both the plate 111 and the bottom surface 112a4 of the main sound beam 112a is merely for illustrative purposes. Figure 5B As shown, the soundboard 11's body 111 and the bottom surface 112a4 of the main sound beam 112a both exhibit an arc shape, with the arc-shaped bottom surface 112a4 contacting the arc-shaped body 111. Each main sound beam 112a has a thick section 112a5 in its central region, and each main sound beam 112a has a thin section 112a6 on opposite sides of the thick section 112a5, with a height less than the thick section 112a5. The intersection point 112a1 is formed on the thick sections 112a5 of the two main sound beams 112a, and all the through holes 112b are formed on the thick sections 112a5. However, the fact that the thin section 112a6 is less than the thick section 112a5 is only for illustrative purposes. Figure 5C As shown, the width of the thin section 112a6 of the beam can be smaller than the width of the thick section 112a5 of the beam.

[0030] Furthermore, the transverse sound beam 113 of the soundboard 11 is connected to the body 111 of the soundboard 11, and the transverse sound beam 113 is located between the main beam ends 112a2 of the two main sound beams 112a, so that the transverse sound beam 113 is located inside the resonance chamber 14 of the body 10. The main beam ends 112a2 of the two main sound beams 112a and the transverse sound beam 113 are all located around the sound hole 111a, so that the sound hole 111a is located between the main beam ends 112a2 of the two main sound beams 112a and the transverse sound beam 113. Multiple auxiliary sound beams 114 are connected to the soundboard. The body 111, and the auxiliary sound beam 114 is located between the tail sections 112a3 of the two main sound beams 112a, and the end of one of the auxiliary sound beams 114 is located in one of the hollow through holes 112b. In this way, the resonance effect of the body 10 can be increased to make the sound fuller and richer. In addition, the height or width of the main sound beams 112a are not the same, which not only increases the structural strength of the main sound beams 112a to prevent the soundboard 11 from being deformed by the tension of the strings 30, but also changes the vibration mode of the soundboard 11 to affect the sound quality of the acoustic guitar 1.

[0031] The soundboard 11 has an arcuate groove 115 formed on the body 111 of the soundboard 11. The arcuate groove 115 is spaced at the outer edge of the body 111. One end of the arcuate groove 115 is adjacent to the head section 112a2 of one of the main sound beams 112a, and the other end of the arcuate groove 115 is adjacent to the head section 112a2 of the other main sound beam 112a. The arcuate groove 115 passes under the tail section 112a3 of each main sound beam 112a, so that a portion of the bottom surface 112a4 of each main sound beam 112a does not contact the body 111. Thus, the opposite ends of each auxiliary sound beam 114 are adjacent to the tail section 112a3 of the main sound beam and the arcuate groove 115, respectively. However, the soundboard 11 is recessed to form an arcuate groove 115, as... Figure 5C As shown, the curved groove 115 has multiple curved groove segments 115a, which are arranged at intervals along the outer edge of the plate 111, making the curved groove 115 appear discontinuous. In addition, the bridge 116 of the soundboard 11 is connected to the plate 111 of the soundboard 11 and is located outside the resonance chamber 14 of the body 10. Furthermore, the bridge 116 is connected to multiple strings 30.

[0032] Please see Figure 2 , Figure 6 and Figure 7As shown, the neck 20 has three parts: a neck 21, a headstock 22, and a fingerboard 23. One end of the neck 21 forms the headstock 22, and the other end of the neck 21 is connected to the side plate 13 of the body 10. The headstock 22 is equipped with multiple knobs 24 to connect one-to-one with one of the strings 30. A portion of the fingerboard 23 is connected to the neck 21, and the remaining portion of the fingerboard 23 covers a portion of the soundboard 11 of the body 10. In this embodiment, the neck 21 is provided with a handle 211, a root 212, and an adjustment frame rod. 213 and two carbon fiber strips 214, the handle 211 has a mounting surface 211a on one side to connect to the finger plate 23, and the handle 211 has a shaped surface 211b on the side away from the mounting surface 211a, and the handle 211 is recessed from the mounting surface 211a toward the shaped surface 211b to form two grooves 211c and a central channel 211d located between the two grooves 211c, wherein each groove 211c has two groove sides 211c1 and a groove bottom surface 211c2 located between the two groove sides 211c1.

[0033] Please see Figure 2 , Figure 6 , Figure 7 and Figure 8 As shown, the root 212 of the neck 21 is integrally formed at one end of the shank 211 to connect to the side plate 13 of the body 10. A portion of the adjustment frame rod 213 is located inside the central channel 211d, and a portion of the adjustment frame rod 213 passes through the resonance chamber 14 of the body 10. The adjustment frame rod 213 located inside the resonance chamber 14 will pass through a connecting hole 113a in the transverse soundbar 113. In addition, each carbon fiber strip 214 of the neck 21 is one-to-one disposed in one of the... Inside the groove 211c of the handle 211, when the carbon fiber strip 214 is located inside the groove 211c, the carbon fiber strip 214 simultaneously contacts the two side surfaces 211c1 and the bottom surface 211c2 of the groove 211c, so that the carbon fiber strip 214 fills the groove 211c. Thus, one end of each carbon fiber strip 214 forms a gap D with the shaping surface 211b, while the other end of each carbon fiber strip 214 is flush with the mounting surface 211a of the handle 211. Figure 8As shown, the adjustment frame rod 213 is used to adjust the curvature of the neck 21, so that the neck 21 can avoid bending or deformation due to the tension of the strings 30. In this embodiment, when the fingerboard 23 is connected to the mounting surface 211a, the two carbon fiber strips 214 and the adjustment frame rod 213 are surrounded by the fingerboard 23 and the shank 211 and cannot be directly observed from the outside of the neck 20. The neck 21 can change its vibration characteristics because the carbon fiber strips 214 fill the groove 211c, thereby affecting the tone of the acoustic guitar 1, so that the acoustic guitar 1 can stably produce a clear and bright tone. The neck 21 can even improve its tensile strength and prevent deformation or breakage under high string tension.

[0034] The above description is illustrative only and not restrictive. Those skilled in the art will understand that many modifications, variations or equivalents can be made without departing from the spirit and scope of the technical concept, but all will fall within the protection scope of this utility model.

Claims

1. A soundboard, characterized in that, Include: A single plate with one tone hole; An X-shaped main sound beam connects to the plate body and has two interconnected main sound beams and multiple hollow through holes formed in the main sound beams. The connection point between the two main sound beams is set as an intersection point, such that each main sound beam is distinguished into a main beam head section and a main beam tail section through the intersection point. The size of each of the multiple hollow through holes gradually decreases from the intersection point towards the outer edge of the plate body; and An arcuate groove is formed on the plate and spaced at the outer edge of the plate. One end of the arcuate groove is adjacent to the head section of one of the main sound beams, and the other end of the arcuate groove is adjacent to the head section of the other main sound beam. The arcuate groove passes under the tail section of one of the main sound beams.

2. The soundboard according to claim 1, characterized in that, The soundboard has a transverse sound beam connecting the board body, and the transverse sound beam is located between the main beam ends of the two main sound beams.

3. The soundboard according to claim 2, characterized in that, The head sections of the two main sound beams and the transverse sound beam are both located around the sound hole, so that the sound hole is located between the head sections of the two main sound beams and the transverse sound beam.

4. The soundboard according to claim 1, characterized in that, The soundboard has an auxiliary sound beam connecting the board body. The auxiliary sound beam is located between the tail sections of the main beams of the two main sound beams, and the end of the auxiliary sound beam is located in one of the hollow through holes.

5. The soundboard according to claim 4, characterized in that, One end of the auxiliary sound beam is adjacent to the tail section of the main beam, while the other end of the auxiliary sound beam is adjacent to the curved groove.

6. The soundboard according to claim 1, characterized in that, Each of the main sound beams has a thick section in the central region, and a thin section with a height or width smaller than the thick section is provided on both sides of the thick section, and the intersection is formed in the thick sections of the two main sound beams.

7. The soundboard according to claim 1, characterized in that, The curved groove has multiple curved groove segments, which are spaced apart from each other along the outer edge of the plate.

8. A type of musical instrument body, characterized in that, It has a soundboard as described in any one of claims 1 to 7, and further has a back plate and a side plate, with opposite sides of the side plate respectively connected to the soundboard and the side plate.

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