Novel Ruan with Double Circular Resonance Device

Abstract

This utility model discloses a novel ruan with a double-circle resonant device, including a top panel, a side panel fixedly connected to the back of the top panel, a back panel fixedly connected to the back of the side panel, a neck fixedly connected to the top of the side panel, a headstock fixedly connected to the top of the neck, a fingerboard with frets on the front of the neck, and a nut on the lower front of the headstock. This utility model cleverly reduces the horizontal width through a double-circle top panel design, effectively alleviating chest pressure during playing and making the holding posture more natural and comfortable. It is especially convenient for playing in the high register, significantly improving the player's control flexibility. The fret height is reduced to 3mm, and combined with the scientific curvature design of the fingerboard, it greatly reduces finger strength consumption during playing. Even when playing complex pieces quickly, the player can more easily control the pressing force and accuracy, significantly improving the smoothness and comfort of the performance.

Description

Technical Field

[0001] This utility model relates to the field of traditional musical instrument technology, specifically a novel Ruan with a double-circle resonator. Background Technology

[0002] The ruan is a traditional Chinese musical instrument. Due to the lack of archaeological discoveries of physical artifacts, only murals and documents with similar images have survived. After the liberation, to meet the need for symphonic interpretation of national music, national orchestras were established, and replicas were made based on these images. As a plucked string instrument, the ruan holds an important position in national orchestras. The current ruan has a round soundboard and backboard, made of paulownia wood, with hardwood frames and high-pitched frets (approximately 10mm high). However, the current ruan design is flawed. The round soundboard creates a feeling of pressure on the chest during playing, and large ruan can reach 500mm in diameter, which is not only difficult to hold but also hinders high-pitched playing. Furthermore, the materials used are inappropriate; the soundboard is mostly made of paulownia, which has low sound transmission efficiency and is easily affected by environmental humidity. The hardwood backboard and sides suppress resonance vibrations, affecting sound quality. Additionally, the high-pitched frets are not conducive to playing. Therefore, we propose a new type of ruan with a double-circle design and a resonant mechanism. Utility Model Content

[0003] The purpose of this utility model is to provide a new type of Ruan with a double-circle resonator device, which has the advantages of reasonable shape and materials, and good sound quality. It solves the problems of unreasonable Ruan shape, circular soundboard causing chest compression during playing, large Ruan with diameters of up to 500mm, which is not conducive to holding the instrument and also hinders playing in the high range. In addition, the materials used are unreasonable. The soundboard is mostly made of paulownia, which has low sound transmission efficiency and is easily affected by environmental humidity. The side plates are made of hardwood with a thickness of 15-20mm, which suppresses resonance vibration and affects sound quality. At the same time, the fingerboard is made of high frets, which is not conducive to playing.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a novel ruan with a double-circle resonant device, comprising a panel, a side plate fixedly connected to the back of the panel, a back plate fixedly connected to the back of the side plate, a neck fixedly connected to the top of the side plate, a headstock fixedly connected to the top of the neck, a fingerboard on the front of the neck, frets on the fingerboard, a nut on the lower front of the headstock, tuning pegs fixedly connected to both sides of the headstock, a bridge, a resonant bridge, and a string bridge arranged sequentially from top to bottom on the lower part of the front of the panel, and sound windows opened at both ends of the front of the panel.

[0005] Preferably, the effective string length is between the nut and the bridge, and the effective string length is 560mm; the resonant string length is between the bridge and the resonant bar, and the resonant string length is 70mm; and the ineffective string length is between the resonant bar and the string bridge, and the ineffective string length is 80mm.

[0006] Preferably, the panel is double-circular, with a height of 440mm, a width of 380mm, a radius of 190mm for the larger lower circle, and a radius of 130mm for the smaller upper circle.

[0007] Preferably, the panel is made of spruce and has a thickness of 3mm.

[0008] Preferably, the resonant code is a single-leg code, the code height is 20mm, the upper length is 55mm and the width is 3mm, the lower length is 65mm and the width is 10mm, and a 3mm circular hole is opened on each of the left and right shoulders of the resonant code.

[0009] Preferably, the height of the fret is 3mm, the thickness of the back plate is 3mm, and the thickness of the side plate is 2.5mm.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model cleverly reduces the horizontal width through the double circular panel design, effectively reducing the pressure on the chest during performance, making the holding posture more natural and comfortable, especially facilitating the operation of high-pitched playing, greatly improving the player's control flexibility, reducing the fret height to 3mm, and with the scientific curvature design of the fingerboard, greatly reducing the finger strength consumption during performance. Even when playing complex pieces quickly, the player can more easily control the string pressing force and accuracy, significantly improving the smoothness and comfort of the performance.

[0012] 2. This invention utilizes spruce material for the soundboard, which has a sound transmission speed 4-5 times faster than traditional paulownia soundboards. This allows for more efficient conversion of string vibrations into sound waves, significantly increasing volume and producing a clearer, brighter tone. The unique resonance system design, through the resonance string length, excites the eighth harmonic resonance, adding rich overtone layers to the tone, making it fuller, rounder, and more expressive. This greatly enhances the musical appeal and artistic effect. Furthermore, spruce material has excellent corrosion resistance, resulting in a longer service life compared to traditional paulownia soundboards, effectively ensuring the long-term stable use of the instrument. The side and back plates are designed to be thin and light, significantly reducing the overall weight of the instrument. At the same time, this design optimizes the resonance cavity structure, allowing the side and back plates to vibrate more sensitively and collaboratively, resulting in a richer and deeper resonance effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the right-side structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the rear view structure of this utility model.

[0016] In the diagram: 1. Tuning pin; 2. Nut; 3. Fret; 4. Top plate; 5. Sound window; 6. Fingerboard; 7. Bridge; 8. Resonance bridge; 9. String assembly; 10. Sides; 11. Headstock; 12. Neck; 13. Back. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0019] Example 1:

[0020] Please see Figure 1-3 As shown, this utility model provides a novel ruan with a double-circle resonant device, including a front panel 4, a side panel 10 fixedly connected to the back of the front panel 4, a back panel 13 fixedly connected to the back of the side panel 10, a neck 12 fixedly connected to the top of the side panel 10, a headstock 11 fixedly connected to the top of the neck 12, a fingerboard 6 on the front of the neck 12, frets 3 on the fingerboard 6, a nut 2 on the lower front of the headstock 11, and tuning pegs 1 fixedly connected to both sides of the headstock 11. A bridge 7, a resonant bridge 8, and a string assembly 9 are arranged sequentially from top to bottom on the lower part of the front of the front panel 4. Sound windows 5 are opened at both ends of the front of the front panel 4. The height of the frets 3 is 3mm, the thickness of the back panel 13 is 3mm, and the thickness of the side panel 10 is 2.5mm.

[0021] This technical solution utilizes string vibration to first transmit the sound through the bridge 7 to the soundboard 4. The spruce soundboard 4, with its excellent sound transmission performance, quickly converts the vibration into sound waves and transmits them efficiently. During the vibration of the soundboard 4, the sound waves are further diffused through the sound beam, enhancing the sound propagation effect. At the same time, the resonance cavity formed by the side plate 10 and the back plate 13 amplifies the sound through resonance. The side plate 10 is only 2.5mm thick and the back plate 13 is 3mm thick. This thin and light design allows them to respond more sensitively to the vibration of the soundboard 4, resonate together, expand the resonance cavity effect, and enhance the overall volume and the richness of the sound quality.

[0022] Example 2:

[0023] Based on Embodiment 1, this utility model is as follows: Figure 1-3 As shown, the effective string length is between the nut 2 and the bridge 7, with an effective string length of 560mm. The resonant string length is between the bridge 7 and the resonant bridge 8, with a resonant string length of 70mm. The ineffective string length is between the resonant bridge 8 and the string bridge 9, with an ineffective string length of 80mm. The panel 4 is double-circular, with a height of 440mm, a width of 380mm, a radius of 190mm for the larger lower circle, and a radius of 130mm for the smaller upper circle. The panel 4 is made of spruce and has a thickness of 3mm. The resonant bridge 8 is a single-leg bridge, with a height of 20mm, an upper length of 55mm, a width of 3mm, a lower length of 65mm, and a width of 10mm. The resonant bridge 8 has a 3mm circular hole on each of its left and right shoulders.

[0024] This technical solution uses the effective string length to generate the basic pitch. Its vibration is transmitted to the soundboard 4 through the string bridge 7. When the resonant string length vibrates, it excites the eighth harmonic resonance with the help of the special structure of the single-leg resonant bridge 8, adding rich overtones to the sound and making the tone fuller and more layered. The ineffective string length is damped to suppress unnecessary vibrations, avoid noise, and ensure the purity of the sound. In addition, the height of the fret 3 is reduced to 3mm and the fingerboard 6 is curved, making it easier for the player to control the finger force when pressing the strings. This allows for more precise changes in string length to adjust the pitch, while reducing finger fatigue and ensuring the smoothness and accuracy of the performance. This allows the player to express musical skills and emotions more freely.

[0025] The working principle of this invention is as follows: the vibration of the strings is first transmitted to the soundboard 4 through the bridge 7. The spruce soundboard 4, with its excellent sound transmission performance, quickly converts the vibration into sound waves and conducts them efficiently. During the vibration of the soundboard 4, the sound waves are further diffused through the sound beam, enhancing the sound propagation effect. Simultaneously, the resonance cavity formed by the side plates 10 and the back plate 13 amplifies the sound through resonance. The side plates 10 are only 2.5mm thick, and the back plate 13 is 3mm thick. This thin and light design allows them to respond more sensitively to the vibration of the soundboard 4, synergistically generating resonance, expanding the resonance cavity effect, and enhancing the overall volume and richness of the tone. Through the effective string length... Responsible for generating the fundamental pitch, its vibration is transmitted to the soundboard 4 through the string bridge 7. When the resonant string vibrates, the special structure of the single-leg resonant bridge 8 excites the eighth harmonic resonance, adding rich overtones to the sound, making the tone fuller and more layered. Ineffective string length is damped to suppress unnecessary vibrations, avoid generating noise, and ensure the purity of the sound. In addition, the height of the fret 3 is reduced to 3mm and the fingerboard 6 is curved, making it easier for the player to control the finger force when pressing the strings, and can more accurately change the string length to adjust the pitch, while reducing finger fatigue, ensuring the smoothness and accuracy of the performance, and allowing the player to express musical skills and emotions more freely.

[0026] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0027] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A new type of dulcimer with double circle plus resonance device, comprising a panel (4), characterized in that: A side panel (10) is fixedly connected to the back of the panel (4), a back panel (13) is fixedly connected to the back of the side panel (10), a neck (12) is fixedly connected to the top of the side panel (10), a headstock (11) is fixedly connected to the top of the neck (12), a fingerboard (6) is provided on the front of the neck (12), frets (3) are provided on the fingerboard (6), a nut (2) is provided at the bottom of the front of the headstock (11), tuning pegs (1) are fixedly connected to both the left and right sides of the headstock (11), a bridge (7), a resonant bridge (8) and a string bridge (9) are arranged sequentially from top to bottom on the lower part of the front of the panel (4), and sound windows (5) are opened at both the left and right ends of the front of the panel (4).

2. The new type of two-circular harmonic resonance device guitar according to claim 1, characterized in that: The effective string length is between the nut (2) and the string bar (7), and the effective string length is 560mm. The resonant string length is between the string bar (7) and the resonant bar (8), and the resonant string length is 70mm. The ineffective string length is between the resonant bar (8) and the string bridge (9), and the ineffective string length is 80mm.

3. The new type of two-circular harmonic resonance device guitar of claim 1, wherein: The panel (4) is double-circular, with a height of 440mm, a width of 380mm, a radius of 190mm for the lower large circle, and a radius of 130mm for the upper small circle.

4. The novel double-circle resonator according to claim 1, characterized in that: The panel (4) is made of spruce and has a thickness of 3mm.

5. The novel double-circle resonator according to claim 1, characterized in that: The resonant code (8) is a single-leg code. The code height of the resonant code (8) is 20mm, the upper length is 55mm and the width is 3mm, the lower length is 65mm and the width is 10mm, and a 3mm circular hole is opened on each of the left and right shoulders of the resonant code (8).

6. The novel double-circle resonator according to claim 1, characterized in that: The height of the fret (3) is 3mm, the thickness of the back plate (13) is 3mm, and the thickness of the side plate (10) is 2.5mm.

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