Musical instrument double-bridge string-fixing and vibration-increasing structure
By using a double-key solid-string vibration structure in string instruments, the force of the strings is cancelled inside and outside the resonance cavity, solving the problem of panel deformation and improving vibration efficiency and sound quality.
Patent Information
- Application Number
- CN202421993357.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-16
AI Technical Summary
In traditional string instruments, the tensioned strings exert a great force on one side of the panel, causing the panel to be easily deformed, affecting the life and sound quality of the instrument.
The double-key code solid string vibration structure is adopted. One of the strings passes through the outer code outside the resonance cavity, and the other part passes through the inner code inside. The downward force and the upward force cancel each other to avoid the influence of large forces on the vibration panel.
It improves the vibration efficiency of the vibration panel, extends the service life of the instrument, improves the sound quality and reduces the maintenance frequency.
Smart Images
Figure CN223123609U_ABST
Abstract
Description
Technical Field
[0001] The utility model patent relates to the technical field of stringed instruments, and more specifically, to a string fixing and vibration adding structure with two bridge saddles for musical instruments. Background Art
[0002] Stringed instruments are an important branch within the family of musical instruments. In classical music and even modern music, almost all lyrical melodies are played by the string section. Stringed instruments generally consist of the following main parts: ① strings; ② resonator; ③ string support structure and tension adjustment device; ④ some instruments are equipped with accessories such as pedals, exciters, fingerboards, bows, picks, or hammers.
[0003] The structure of traditional stringed instruments with wooden resonating boxes is as Figure 1 shown, including a nut 1, strings 2, a bridge saddle 3, a tailpiece 4, a soundboard 5, and side plates 6. The bridge saddle 3 is fixed to the tailpiece 4, and the tailpiece 4 is fixed on the soundboard 5. The strings 2 are supported and tensioned by the nut 1 and the bridge saddle 3 and then fixed to the tailpiece 4. When playing, the strings 2 are plucked, causing the soundboard 5 to vibrate along with the strings 2 to produce sound. The sound produced passes through the hollow resonating box to generate a reverberation effect, beautifying the sound. However, the tensioned strings generate a large amount of force that acts on the soundboard through the tailpiece, making the soundboard prone to deformation or cracking, affecting the lifespan and sound quality of the stringed instrument. Summary of the Utility Model
[0004] The purpose of the present utility model is to provide a string fixing and vibration adding structure with two bridge saddles for musical instruments, aiming to solve the problem in the prior art that the tensioned strings exert a large force on one side of the soundboard, making the soundboard prone to deformation.
[0005] The present utility model is implemented as follows. A string fixing and vibration adding structure with two bridge saddles for musical instruments, where the musical instrument body includes a resonating cavity and strings. The resonating cavity has a vibrating soundboard. An outer bridge saddle is provided on the outer surface of the vibrating soundboard, and an inner bridge saddle is provided on the inner surface of the vibrating soundboard. The vibrating soundboard is also provided with a string hole; a string fixer is provided on the side wall of the rear end of the resonating cavity. One end of the string is installed at the upper string fixing part of the musical instrument body. After passing through the outer bridge saddle, the string passes through the string hole, then through the inner bridge saddle, and the other end of the string is installed at the string fixer.
[0006] Optionally, the string hole obliquely penetrates the vibrating soundboard downward.
[0007] Optionally, the outer bridge saddle includes an outer bridge saddle body and an outer nut, and the outer nut is provided on the outer bridge saddle body.
[0008] Optionally, the inner bridge saddle includes an inner bridge saddle body and an inner nut, and the inner nut is provided on the inner bridge saddle body.
[0009] Optionally, the outer bridge body is provided with an outer bridge string hole, the inner bridge body is provided with an inner bridge string hole, and the outer bridge string hole, the string hole, and the inner bridge string hole are communicated with each other;
[0010] After passing through the outer string pillow, the string passes through the outer bridge string hole, the string hole, and the inner bridge string hole in sequence, and then passes through the inner string pillow and is installed on the string fixing device.
[0011] Optionally, a vibration boosting bracket is provided in the resonance cavity. The front end of the vibration boosting bracket is fixedly connected to the front end fixing seat of the resonance cavity, and the rear end of the vibration boosting bracket is fixedly connected to the rear end fixing seat of the resonance cavity.
[0012] Optionally, the vibration boosting bracket includes a left vibration boosting bracket and a right vibration boosting bracket. Both the left vibration boosting bracket and the right vibration boosting bracket are arranged in a bent shape, and the left vibration boosting bracket and the right vibration boosting bracket are respectively arranged on both sides of the central axis of the resonance cavity.
[0013] Optionally, the resonance cavity is arranged with a smaller upper part and a larger lower part, and the bent parts of the left vibration boosting bracket and the right vibration boosting bracket are located in the upper part of the resonance cavity.
[0014] Optionally, the string fixing device includes a connecting part and a fixing part provided at the lower end of the connecting part. The connecting part and the fixing part are integrally formed, and the transverse width of the connecting part is smaller than the transverse width of the fixing part; a through hole is provided on the side wall of the rear end part of the resonance cavity, and the connecting part is inserted into the through hole.
[0015] Optionally, the connecting part includes an upper connecting part and a lower connecting part. The upper connecting part is docked with the lower connecting part, and the lower connecting part is docked with the fixing part; a plurality of inner string fixing holes are provided in the upper connecting part, a plurality of outer string fixing holes are provided in the lower connecting part, and the plurality of outer string fixing holes penetrate through the lower connecting part and the fixing part. The plurality of inner string fixing holes are communicated with the plurality of outer string fixing holes, and the diameter of the inner string fixing holes is smaller than that of the outer string fixing holes.
[0016] Compared with the prior art, the double-bridge string fixing and vibration boosting structure of the musical instrument provided by the present utility model has a part of the string arranged outside the resonance cavity and another part arranged inside the resonance cavity. The string outside the resonance cavity passes through the outer bridge, and the string inside the resonance cavity passes through the inner bridge. Thus, the string applies downward force and upward force to the vibrating panel respectively, and the downward force and the upward force cancel each other out or partially cancel each other out. As a result, the vibrating panel will not be subjected to a large unilateral force from the string, making it not easy for the vibrating panel to be pulled and deformed, ensuring the service life of the musical instrument. At the same time, it avoids the problem that the vibration efficiency of the vibrating panel of the resonance cavity is reduced due to the influence of external pressure, that is, it improves the vibration efficiency of the vibrating panel. Description of the Drawings
[0017] Figure 1 is a schematic structural view of a stringed instrument with a wooden resonance box provided in the prior art;
[0018] Figure 2 is a schematic structural view of a double-bridge string-fixing and vibration-enhancing structure of an instrument provided by the present utility model;
[0019] Figure 3 is a schematic sectional view of a double-bridge string-fixing and vibration-enhancing structure of an instrument provided by the present utility model;
[0020] Figure 4 is a schematic sectional view of a string fixer of a double-bridge string-fixing and vibration-enhancing structure of an instrument provided by the present utility model. Detailed Description of the Preferred Embodiment
[0021] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0022] The implementation of the present utility model will be described in detail below with reference to specific embodiments.
[0023] In the drawings of the present embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.
[0024] Refer to Figures 2-4 as shown, which is a preferred embodiment provided by the present utility model.
[0025] A double-bridge string-fixing and vibration-enhancing structure for musical instruments. The main body of the musical instrument includes a resonance cavity 200 and strings 100. The resonance cavity 200 has a vibrating panel 210. An outer bridge 220 is provided on the outer surface of the vibrating panel 210, and an inner bridge 230 is provided on the inner surface of the vibrating panel 210. String holes 240 are also provided on the vibrating panel 210. A string fixer 300 is provided on the side wall of the rear end of the resonance cavity 200. One end of the string 100 is installed at the upper string-fixing part of the main body of the musical instrument. After passing through the outer bridge 220, the string 100 passes through the string holes 240, then through the inner bridge 230, and the other end of the string 100 is installed at the string fixer 300.
[0026] In the double-bridge string-fixing and vibration-enhancing structure for musical instruments provided in this embodiment, a part of the string 100 is arranged outside the resonance cavity 200, and the other part is arranged inside the resonance cavity 200. The string 100 outside the resonance cavity 200 passes through the outer bridge 220, and the string 100 inside the resonance cavity 200 passes through the inner bridge 230. Thus, the string 100 applies downward and upward forces to the vibrating panel 210 respectively. The downward and upward forces cancel each other out or partially cancel each other out, so that the vibrating panel 210 is not subjected to a large unilateral force from the string 100, making it not easy for the vibrating panel 210 to be pulled and deformed, and ensuring the service life of the musical instrument.
[0027] In addition, since the string 100 passes through the outer bridge 220, then through the string holes 240, and then through the inner bridge 230, the vibration of the string 100 is transmitted to the vibrating panel 210 through the outer bridge 220 and the inner bridge 230 respectively. Among them, the tension of the string generates a downward pressure on the vibrating panel of the resonance cavity through the outer bridge, and the tension of the string generates an upward pressure on the vibrating panel of the resonance cavity through the inner bridge, making it easier for the downward and upward forces received by the vibrating panel 210 to be cancelled out, and making it not easy for the vibrating panel 210 to be pulled and deformed.
[0028] Since the double-bridge string-fixing and vibration-enhancing structure for musical instruments provided in this embodiment makes it not easy for the vibrating panel 210 to be pulled and deformed, on the one hand, the string 100 can be pulled tighter and can withstand a tension of about 100 kilograms at least; on the other hand, since the vibrating panel 210 is not easy to be pulled and deformed when the string 100 is tightened, the stringed musical instrument can be kept in a tightened state, that is, there is no need to often loosen the string and adjust the tension, greatly saving the user's usage cost and improving the user's experience.
[0029] At the same time, it also avoids the problem that the vibration efficiency of the vibrating panel of the resonance cavity is reduced due to the influence of external pressure, that is, it improves the vibration efficiency of the vibrating panel. Through actual detection, using the double-bridge string-fixing and vibration-enhancing structure for musical instruments provided in this embodiment makes the vibration effect of the stringed musical instrument increase by about 20%-30%, and the sound quality is also greatly improved.
[0030] The instrument body also includes a neck, which is connected to the upper end of the resonance cavity, and the upper end string fixing part is arranged at the upper end of the neck.
[0031] Specifically, the string hole 240 penetrates the vibration panel 210 obliquely downward. The string hole 240 is set at a certain inclination angle, so that the abutment between the string 100 and the upper and lower side walls of the string hole 240 becomes gentler, so that the upper and lower side walls of the string hole 240 are not easily torn by the string 100. Preferably, the longitudinal inclination angle of the string hole 240 relative to the vibration panel 210 is 15° to 60°.
[0032] The outer bridge 220 includes an outer bridge body 222 and an outer saddle 221, and the outer saddle 221 is arranged on the outer bridge body 222. The strings 100 are pulled on the outer saddle 221, and the vibration of the strings 100 is transmitted to the vibration panel 210 through the outer saddle 221 and the outer bridge body 222.
[0033] The inner saddle 230 includes an inner saddle body 232 and an inner saddle 231, and the inner saddle 231 is disposed on the inner saddle body 232. The strings 100 in the resonance cavity 200 are pulled on the inner saddle 231, and the vibration of the strings 100 is transmitted to the vibration panel 210 through the inner saddle 231 and the inner saddle body 232.
[0034] Optionally, the outer saddle body 222 is provided with an outer saddle string hole, the inner saddle body 232 is provided with an inner saddle string hole, and the outer saddle string hole, the string hole 240, and the inner saddle string hole are connected; after passing through the outer nut 221, the string passes through the outer saddle string hole, the string hole 240, and the inner saddle string hole in sequence, and then passes through the inner nut 231, and is installed on the string fixing device 300. The upper end of the string hole 240 is connected to the outer saddle string hole, and the lower end of the string hole 240 is connected to the inner saddle string hole. The string passes through the outer saddle string hole, the string hole 240, and the inner saddle string hole in sequence, and the string abuts against the outer saddle body 222 and the inner saddle body 232 respectively, thereby preventing the tensioned string 100 from damaging the vibration panel 210 body, greatly extending the life of the vibration panel 210.
[0035] The instrument body includes a plurality of strings 100, for example, 4 strings, 6 strings, 8 strings, 12 strings, etc. Correspondingly, the outer bridge string holes, the string holes 240, and the inner bridge string holes are also set to be multiple, corresponding one to one with the plurality of strings.
[0036] Optionally, a vibration excitation support 250 is provided inside the resonance cavity 200. The front end of the vibration excitation support 250 is fixedly connected to the front end fixing seat 261 of the resonance cavity 200, and the rear end of the vibration excitation support 250 is fixedly connected to the rear end fixing seat 262 of the resonance cavity 200. The resonance cavity 200 itself will be affected by the tensioned string 100. Through the fixation of the vibration excitation support 250, the resonance cavity 200 is not easily pulled and deformed, enabling the resonance cavity 200 to maintain the cavity shape designed originally, thereby ensuring the sound quality of the musical instrument. It can make the resonance cavity structure more firm, effectively decompose the tension of the string, which acts on the neck of the instrument through the string nut, relieve the tensile force applied to one side of the neck, and reduce the problems such as easy deformation and forward tilt of the neck caused by the influence of external tensile force.
[0037] Optionally, the vibration excitation support 250 includes a left vibration excitation support 251 and a right vibration excitation support 252. Both the left vibration excitation support 251 and the right vibration excitation support 252 are arranged in a bent shape, and the left vibration excitation support 251 and the right vibration excitation support 252 are arranged on both sides of the central axis of the resonance cavity 200. Preferably, the left vibration excitation support 251 and the right vibration excitation support 252 are symmetrically arranged. Through the support of the left vibration excitation support 251 and the right vibration excitation support 252 arranged in a bent shape, the force on the vibration excitation support 250 is dispersed to the left and right sides, and the bent shape arrangement enables the left vibration excitation support 251 and the right vibration excitation support 252 to have both a certain stiffness and a certain elasticity, providing a better support effect for the resonance cavity 200.
[0038] Preferably, the resonance cavity 200 is arranged with a smaller upper part and a larger lower part, and the bent parts of the left vibration excitation support 251 and the right vibration excitation support 252 are located in the upper part of the resonance cavity 200. In this way, the length of the left vibration excitation support 251 and the right vibration excitation support 252 in the upper part of the resonance cavity 200 is less than their length in the lower part of the resonance cavity 200, and the side wall of the rear end part of the resonance cavity 200 is more easily supported by the vibration excitation support 250.
[0039] Specifically, the string fixing device 300 includes a connecting part 310 and a fixing part 320 provided at the lower end of the connecting part 310. The connecting part 310 and the fixing part 320 are integrally formed, and the transverse width of the connecting part 310 is smaller than the transverse width of the fixing part 320; a through hole is provided on the side wall of the rear end part of the resonance cavity, and the connecting part 310 is inserted through the through hole. The through hole can be a through hole, and the diameter of the fixing part 320 is larger than the diameter of the through hole, which is convenient for the limit of the string fixing device 300. The through hole can be a counterbore, that is, the side of the through hole away from the resonance cavity 200 has a stepped depression, and the diameter of the stepped depression is larger than the diameter of the through hole, and the fixing part 320 can be limited at the stepped depression.
[0040] The connecting part 310 includes an upper connecting part and a lower connecting part. The upper connecting part is docked with the lower connecting part, and the lower connecting part is docked with the fixing part 320. A plurality of inner string-fixing holes 330 are provided in the upper connecting part, and a plurality of outer string-fixing holes 340 are provided in the lower connecting part. The plurality of outer string-fixing holes 340 penetrate through the lower connecting part and the fixing part 320. The plurality of inner string-fixing holes 330 are communicated with the plurality of outer string-fixing holes 340, and the diameter of the inner string-fixing holes 330 is smaller than that of the outer string-fixing holes 340. A limiting ring can be provided at the end of the string 100 to make it easier to fix the string. The string passes through the inner string-fixing holes from inside the resonance cavity, and the end of the string is fixed in the outer string-fixing holes.
[0041] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A fixed-string vibration-adding structure with double bridge for musical instruments, characterized in that The musical instrument body includes a resonance cavity and strings. The resonance cavity has a vibrating panel. An external bridge is provided on the outer surface of the vibrating panel, and an internal bridge is provided on the inner surface of the vibrating panel. String holes are also provided on the vibrating panel. A string retainer is provided on the side wall of the rear end of the resonance cavity. One end of the string is installed on the upper string fixing part of the musical instrument body. After passing through the external bridge, the string passes through the string holes and then through the internal bridge, and the other end of the string is installed on the string retainer.
2. The double-bridge string-fixing and vibration-adding structure of an instrument according to claim 1, wherein, The string holes obliquely penetrate the vibrating panel downward.
3. The double-bridge string-fixing and vibration-adding structure of a musical instrument according to claim 2, characterized in that, The external bridge includes an external bridge body and an external string nut, and the external string nut is provided on the external bridge body.
4. The double-bridge string-fixing and vibration-adding structure of a musical instrument according to claim 3, wherein The internal bridge includes an internal bridge body and an internal string nut, and the internal string nut is provided on the internal bridge body.
5. The double-bridge string-fixing and vibration-adding structure of a musical instrument according to claim 4, wherein, An external bridge string hole is provided on the external bridge body, and an internal bridge string hole is provided on the internal bridge body. The external bridge string hole, the string holes, and the internal bridge string hole are connected and communicated. After passing through the external string nut, the string sequentially passes through the external bridge string hole, the string holes, and the internal bridge string hole, and then passes through the internal string nut and is installed on the string retainer.
6. A double-bridge string-fixing and vibration-adding structure for musical instruments according to any one of claims 1-5, characterized in that, A vibration boosting bracket is provided in the resonance cavity. The front end of the vibration boosting bracket is fixedly connected to the front end fixing seat of the resonance cavity, and the rear end of the vibration boosting bracket is fixedly connected to the rear end fixing seat of the resonance cavity.
7. The double-bridge string-fixing and vibration-adding structure for musical instruments according to claim 6, characterized in that, The vibration boosting bracket includes a left vibration boosting bracket and a right vibration boosting bracket. Both the left vibration boosting bracket and the right vibration boosting bracket are arranged in a bent shape, and the left vibration boosting bracket and the right vibration boosting bracket are arranged on both sides of the central axis of the resonance cavity.
8. The double-bridge string-fixing and vibration-adding structure of a musical instrument according to claim 7, characterized in that, The resonance cavity is arranged with a smaller upper part and a larger lower part. The bent parts of the left vibration boosting bracket and the right vibration boosting bracket are located in the upper part of the resonance cavity.
9. A vibrating structure for a musical instrument with double bridge and string fixing, as described in any one of claims 1-5, characterized in that The string retainer includes a connecting part and a fixing part provided at the lower end of the connecting part. The connecting part and the fixing part are integrally formed, and the transverse width of the connecting part is smaller than the transverse width of the fixing part. A through hole is provided on the side wall of the rear end of the resonance cavity, and the connecting part is inserted into the through hole.
10. A double-bridge string-fixing and vibration-adding structure for musical instruments according to claim 9, characterized in that, The connecting part includes an upper connecting part and a lower connecting part. The upper connecting part is butted against the lower connecting part, and the lower connecting part is butted against the fixing part. A plurality of inner string fixing holes are provided in the upper connecting part, and a plurality of outer string fixing holes are provided in the lower connecting part. The plurality of outer string fixing holes penetrate through the lower connecting part and the fixing part. The plurality of inner string fixing holes are connected and communicated with the plurality of outer string fixing holes, and the diameter of the inner string fixing holes is smaller than that of the outer string fixing holes.