Pin handle
By embedding an adjustment frame rod and carbon fiber strip inside the neck, the problems of neck bending and insufficient tone are solved, achieving the effects of improved structural strength and rich tone, ensuring stable sound quality and resonance.
Patent Information
- Application Number
- CN202520142274.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-21
AI Technical Summary
The neck of an acoustic guitar is prone to bending and deformation due to changes in temperature and humidity, which affects intonation and playing experience. Improper bracing design can lead to insufficient tone richness or resonance.
The neck is fitted with an adjustment frame rod and carbon fiber strips to enhance the structural strength of the neck, change its vibration characteristics, prevent bending and deformation, and improve high-frequency tone and resonance.
It effectively prevents the neck from bending and deforming, enhances high-frequency volume and timbre richness, ensures clear and bright sound quality, increases the resonance effect of the instrument body, and prevents breakage under high string tension.
Smart Images

Figure CN223871216U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a guitar handle for wooden guitar, especially a handle that can increase structural strength, and thus can prevent the handle from bending. BACKGROUND
[0002] Wooden guitar, as a popular and well-loved musical instrument, its design and production details have a crucial influence on tone and playing experience. However, different brands and models of guitars may have some design flaws that can affect the durability or tone performance of the guitar.
[0003] Firstly, the handle is one of the core structures of the wooden guitar, which bears the tension of the strings and directly affects the feel and stability during playing. When the handle bears the tension of the strings for a long time, the handle is prone to bending or deformation. Because of the high sensitivity of wood to temperature and humidity, the bending or deformation of the handle is particularly obvious in an environment with large humidity changes. Once the handle is bent, it will not only affect the pitch of the guitar, but also make the player feel uncomfortable, and even professional repair may be needed to adjust or replace the handle.
[0004] Secondly, the soundboard structure inside the body also has an important influence on the tone. The soundboard is an important part of supporting the soundboard, and is also responsible for adjusting the vibration mode of the soundboard. However, if the soundboard is designed improperly, if the soundboard is too high and thick, not only will it cause the structure to be too strong and the weight to be too heavy, but it will also make the soundboard vibrate inefficiently, which will result in the tone of the wooden guitar being not rich enough or the resonance being insufficient. Although a thin and small soundboard can effectively improve the tone and volume, the soundboard is prone to deformation due to changes in temperature and humidity, which exceeds the allowable value. SUMMARY
[0005] The main purpose of the utility model is to provide an improved handle, which can increase the structural strength of the handle to prevent the handle from bending, and even prevent the handle from producing irreversible deformation. Moreover, it can improve the efficiency of high-frequency overtone vibration of the handle and the high-frequency tone of the handle can enter the sound box and be amplified by resonance. This can effectively solve the problem of low volume and insufficient sustain (Wolf tone phenomenon) at a specific frequency (such as G#) during playing, and can also increase the resonance effect of the body to make the sound more full, and can improve the multi-level overtone effect during playing to enrich the overall tone.
[0006] The secondary purpose of the utility model is to provide an improved neck, which changes the connection mode between the handle and the carbon fiber strip to change the vibration characteristics of the improved neck, thereby affecting the tone of the wooden guitar, so that the wooden guitar can stably produce clear and bright sound quality. Moreover, the improved neck can also improve the tensile strength to prevent deformation or breakage under high string tension.
[0007] To achieve the foregoing object, the utility model provides a guitar neck of wooden guitar, the guitar neck has a neck, a head and a fingerboard, the neck forms the head at one end, and the fingerboard is connected to the neck.
[0008] Among them, the neck includes a handle, an adjustment frame rod and two carbon fiber strips, the handle forms an installation surface and a modeling surface on opposite sides respectively, the handle is recessed from the installation surface to the modeling surface to form two embedding grooves and a central passage between the two embedding grooves, the adjustment frame rod is arranged inside the central passage, and the two carbon fiber strips are arranged one by one inside one of the embedding grooves, an interval distance is formed between the end of each carbon fiber strip and the modeling surface, and the other end of each carbon fiber strip is cut flush with the installation surface.
[0009] Among them, the fingerboard is connected to the installation surface, so that the two carbon fiber strips are surrounded by the fingerboard and the handle and cannot be directly observed from the outside of the guitar neck.
[0010] In this embodiment, each embedding groove has two groove side surfaces and a groove bottom surface between the two groove side surfaces, and the carbon fiber strip simultaneously contacts the two groove side surfaces and the groove bottom surface.
[0011] The utility model is characterized in that the handle of the neck is embedded with the adjustment frame rod and the two carbon fiber strips, and the fingerboard of the guitar neck is connected to the neck, so that the adjustment frame rod and the two carbon fiber strips are surrounded by the fingerboard and the handle and cannot be directly observed from the outside of the guitar neck, thereby the structural strength of the guitar neck can be improved to prevent the guitar neck from bending and to avoid irreversible deformation of the guitar neck, the efficiency of high-frequency overtone vibration of the guitar neck can be improved, and the high-frequency tone of the guitar neck can enter the sound box and be amplified by resonance, which can effectively solve the problem of excessively low volume and insufficient delay (Wolf tone phenomenon) of a specific frequency (such as G#) during playing, even increase the resonance effect of the guitar body to make the sound more full, and significantly hear multiple levels of overtone effects during playing to enrich the overall tone.
[0012] Furthermore, when each carbon fiber strip is embedded inside the embedding groove, the carbon fiber strip simultaneously contacts the two groove side surfaces of the embedding groove and the groove bottom surface of the embedding groove, so that the neck can change the vibration characteristics, thereby affecting the tone of the wooden guitar, the wooden guitar can stably produce clear and bright sound quality, and even the neck can improve the tensile strength to prevent deformation or rupture under high string tension. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a perspective view of the wooden guitar of the utility model;
[0014] Figure 2 It is an exploded view of the wooden guitar of the utility model;
[0015] Figure 3 for Figure 2 a sectional view of the main body of the acoustic guitar;
[0016] Figure 4 for Figure 3 a schematic view of the soundboard of the acoustic guitar;
[0017] Figure 5A for a schematic view of the soundboard of the acoustic guitar;
[0018] Figure 5B for a schematic view of the soundboard of the acoustic guitar;
[0019] Figure 5C for a schematic view of the soundboard of the acoustic guitar;
[0020] Figure 6 for Figure 2 a sectional view of the main body of the acoustic guitar;
[0021] Figure 7 for a sectional view of the main body of the acoustic guitar;
[0022] Figure 8 for a schematic view of the soundboard of the acoustic guitar.
[0023] BRIEF DESCRIPTION OF DRAWINGS 1 - acoustic guitar; 10 - main body; 11 - soundboard; 111 - board body; 111a - sound hole; 112 - X-shaped main sound beam; 112a - main sound beam; 112a1 - intersection point; 112a2 - main beam head section; 112a3 - main beam tail section; 112a4 - sound beam bottom surface; 112a5 - beam thick part; 112a6 - beam thin part; 112b - hollow through hole; 113 - transverse sound beam; 113a - connecting hole; 114 - auxiliary sound beam; 115 - arc-shaped groove; 115a - arc-shaped groove section; 116 - bridge; 12 - back plate; 13 - side plate; 14 - resonance cavity; 20 - handle; 21 - neck; 211 - handle rod; 211a - mounting surface; 211b - modeling surface; 211c - slot; 211c1 - slot side surface; 211c2 - slot bottom surface; 211d - central passage; 212 - root; 213 - adjusting frame rod; 214 - carbon fiber strip; 22 - head; 23 - fingerboard; 24 - knob; 30 - string; D - interval distance. DETAILED DESCRIPTION
[0024] The advantages and features of the present application will become more apparent with the description of the specific embodiments and the accompanying drawings.
[0025] Please refer to Figure 1 and Figure 2As shown, this utility model provides a wooden guitar 1, mainly composed of a body 10 and a neck 20. Please refer to [link / reference]. Figure 2 , Figure 3 and Figure 4 As 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.
[0026] 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.
[0027] 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.
[0028] 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.
[0029] 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 be connected to a connecting hole 113a of 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.
[0030] 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 violin neck having a neck, a headstock and a fingerboard, wherein the headstock is formed at one end of the neck, and the fingerboard is connected to the neck; Its features are: The neck of the instrument includes: A handle has a mounting surface and a shaping surface on opposite sides. The handle is recessed from the mounting surface toward the shaping surface to form two grooves and a central channel between the two grooves. An adjusting frame rod is installed inside the central passage; and Two carbon fiber strips are set one-to-one inside one of the grooves, with one end of each carbon fiber strip forming a gap with the shaped surface, and the other end of each carbon fiber strip being cut flush with the mounting surface; The fingerboard is connected to the mounting surface, so that the two carbon fiber strips are surrounded by the fingerboard and the shank and cannot be directly observed from the outside of the neck.
2. The neck according to claim 1, characterized in that, Each of the grooves has two groove sides and a groove bottom located between the two groove sides, while the carbon fiber strip simultaneously contacts the two groove sides and the groove bottom.