Pull string instrument

Abstract

The utility model relates to a bowed string instrument which comprises a hollow first box body, a vibrating string bearing rod arranged on the first box body and a vibrating string, a first opening is formed in the first end of the first box body, and the first opening is closed by a diaphragm. The bowed instrument includes a hollow second case disposed on a first case, the second case including a panel, a back plate, and a side frame connecting the panel and the back plate, the side frame extending along edges of the panel and the back plate and enclosing an internal volume of the second case together with the panel and the back plate. The bowed string instrument is large in volume, beautiful in timbre, sensitive in response and easy to master. Volume is sufficient in a high-pitch area, finger feeling of string pressing is sensitive, and response is rapid and direct. And the sound quality in a bass area is strong, thick and wide. And the timbre in the alto region is round and soft, has the special charm of antique and ancient fragrance, and also has an immersive sweet feeling.

Description

TECHNICAL FIELD

[0001] The present application relates to a musical instrument, in particular to a stringed instrument. BACKGROUND

[0002] At present, most of the Chinese ethnic orchestras use cello and double bass as bass parts. However, the basic tone of the Chinese ethnic orchestra is the Erhu, and the basic tone of the string section is the sound group based on the Erhu tone, which belongs to the membrane vibration type instrument. The violin is a plate vibration type instrument, and the tone of the membrane vibration type instrument is not compatible with the tone of the plate vibration type instrument, and the combination of the two is tone separation. In order to enrich and strengthen the bass part of the stringed instrument in the Chinese ethnic orchestra, and to series the ethnic stringed instrument, a corresponding bass ethnic stringed instrument is needed. CONTENT OF THE UTILITY MODEL

[0003] The present application proposes a stringed instrument that simultaneously includes plate vibration and membrane vibration, which can enrich and strengthen the bass part of the stringed instrument in the Chinese ethnic orchestra.

[0004] According to the stringed instrument of one aspect of the present application, the stringed instrument comprises a hollow first box, a vibrating string bearing rod arranged on the first box, and a vibrating string, a first end of the first box is provided with a first opening, and the first opening is closed by a diaphragm, characterized in that the stringed instrument comprises a hollow second box arranged on the first box, the second box comprises a panel, a back plate and a side frame connecting the panel and the back plate, the side frame extends along the edges of the panel and the back plate and encloses the internal volume of the second box together with the panel and the back plate.

[0005] According to the stringed instrument of one aspect of the present application, the side frame of the second box is inlaid on the side wall of the first box, so that the panel of the second box is located outside the first box and the back plate of the second box is located inside the first box, and the axial direction of the second box is perpendicular to the axial direction of the first box.

[0006] According to the stringed instrument of one aspect of the present application, the panel and the back plate of the second box are arched outwardly of the second box.

[0007] According to the stringed instrument of one aspect of the present application, the volume of the second box is equivalent to one third of the volume of the first box, and / or the area of the orthographic projection of the panel of the second box is equivalent to four fifths of the area of the orthographic projection of the side of the first box on which the second box is fixed.

[0008] According to the stringed instrument of one aspect of the present application, the cross-sectional shape of the first box perpendicular to the axial direction is oval.

[0009] The stringed instrument according to an aspect of the present application further comprises a first vibration conducting member, one end of the first vibration conducting member supports the vibrating string and receives vibrations from the vibrating string, the other end of the first vibration conducting member transmits vibrations from the vibrating string to the end of the first body.

[0010] The stringed instrument according to an aspect of the present application, the first vibration conducting member comprises a longitudinal conducting member and a transverse conducting member, the first end of the longitudinal conducting member extends out of the second body and supports the vibrating string, the middle part of the longitudinal conducting member is directly or indirectly connected to the panel of the second body to transmit vibrations of the vibrating string to the second body, the second end of the longitudinal conducting member extends into the interior of the first body through the second body and is connected to the first end of the transverse conducting member, the second end of the transverse conducting member is connected to the diaphragm of the first end of the first body to transmit vibrations of the vibrating string to the diaphragm of the first end of the first body.

[0011] The stringed instrument according to an aspect of the present application, the second end of the longitudinal conducting member is pivotally connected to the first end of the transverse conducting member.

[0012] The stringed instrument according to an aspect of the present application, the second end of the transverse conducting member is connected to the diaphragm via a claw part.

[0013] The stringed instrument according to an aspect of the present application further comprises a second vibration conducting member, the second vibration conducting member transmits vibrations from the vibrating string to the side wall of the first body.

[0014] The stringed instrument according to an aspect of the present application, the first end of the second vibration conducting member is directly or indirectly connected to the first vibration conducting member.

[0015] The stringed instrument according to an aspect of the present application, the longitudinal conducting member of the first vibration conducting member is fixed on the second body via a vibration conducting member seat, the first end of the second vibration conducting member is connected to the vibration conducting member seat.

[0016] The stringed instrument according to an aspect of the present application, the second end of the first body is open, preferably, the second end of the first body is provided with a notch to facilitate bowing.

[0017] The stringed instrument according to an aspect of the present application, the vibrating string support member is hollow.

[0018] The stringed instrument according to an aspect of the present application, the back plate of the second body is provided with a sound hole.

[0019] According to one aspect of the present application, one or more of the entirety or a portion of the first body, the second body, the vibrating string carrier, the first vibration conductor, the second vibration conductor, and the vibration conductor seat are made of a carbon fiber material.

[0020] The stringed instrument according to the present application has a large volume, a beautiful tone, a sensitive response, and is easy to master. In the high-pitched region, the volume is sufficient, the finger feeling of the string is sensitive, and the response is fast and direct. In the bass region, the tone is rich and broad. In the midrange, the tone is soft and beautiful, with a special charm of ancient times, and also has a sweet feeling of immersion. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A perspective view of a stringed instrument according to the present application is shown.

[0022] Figure 2 A partial cross-sectional view of a stringed instrument according to the present application is shown.

[0023] Figure 3 A resonance system of a stringed instrument according to the present application is shown.

[0024] Figure 4 An internal structure of a stringed instrument according to the present application is shown.

[0025] Figure 5 A frequency spectrum when playing A3 with a stringed instrument using traditional materials is shown.

[0026] Figure 6 A frequency spectrum when playing A3 with a stringed instrument using new materials is shown.

[0027] Figure 7 A frequency spectrum when playing A4 with a stringed instrument using traditional materials is shown.

[0028] Figure 8 A frequency spectrum when playing A4 with a stringed instrument using new materials is shown.

[0029] Figure 9 A frequency spectrum when playing C2 with a stringed instrument using traditional materials is shown.

[0030] Figure 10 A frequency spectrum when playing C2 with a stringed instrument using new materials is shown. DETAILED DESCRIPTION

[0031] It is easy to understand that, according to the technical solutions of the present application, a person skilled in the art can propose various structural modes and implementation modes that can be replaced with each other without changing the essential spirit of the present application. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solutions of the present application, and should not be regarded as the whole or as the limitation or restriction of the technical solutions of the present application.

[0032] As shown in Figure 1 , the stringed instrument according to the present application comprises a hollow first body 1. The second body 2, the vibrating string carrier 14, the first vibration conduction member, the second vibration conduction member 6 and the vibration conduction member seat 11 and other structures are directly or indirectly connected to the first body 1. Among them, the axial direction of the first body 1 refers to the extension direction of the first body 1, corresponding to the direction of the connecting line between the center of the first end of the first body 1 and the center of the second end. The radial direction of the first body 1 refers to the direction perpendicular to the axial direction of the first body 1. The side wall 101 of the first body 1 is substantially parallel to the axial direction of the first body 1 and extends between the first end 102 of the first body 1 and the second end 103 of the first body 1 and surrounds the inside of the first body 1. Preferably, the cross section of the first body 1 perpendicular to the axial direction is approximately elliptical or oblate, i.e. the middle of the cross section is high and the two sides are low, and the four corners are smoothly transitioned. The first end 102 of the first body 1 can be provided with a first opening, which is closed by a diaphragm 7. The second end 103 of the first body 1 can be provided with a second opening, which is open and can be blocked by a hollow window. Optionally, as shown in Figure 1 and Figure 2 , one end of the first body 1 can be provided with a notch 15 to facilitate the operation of the bow.

[0033] As shown in Figure 1 , the side wall 101 of the first body 1 is also provided with a vibrating string carrier 14. One end of the vibrating string carrier 14 is connected to the first body 1, and the other end is provided with a head 16 comprising a vibrating string adjusting device 17 to fix and adjust the vibrating string 10. The upper surface of the vibrating string carrier 14 can also be provided with a fingerboard 13. The stringed instrument according to the present application usually has four vibrating strings, but can also have other numbers of vibrating strings 10, such as two, three, five strings, etc.

[0034] In one embodiment, the second body 2 is a direct sound body of the whole instrument fundamental tone. The vibration from the vibrating string 10 is first conducted to the second body 2 via the vibration conduction member and first excites the resonance in the second body 2. However, in another embodiment, the vibration from the vibrating string 10 can also be first conducted to the first body 1 via or not via the vibration conduction member and first excite the resonance in the first body 1. In Figure 2In the illustrated embodiment, the second housing 2 is fixed to the side wall 101 of the first housing 1. The second housing 2 includes a panel 201, a back panel 203, and a side frame 202 connecting the panel 201 and the back panel 203. The side frame 202 extends circumferentially along the edges of the panel 201 and the back panel 203 and, together with the panel 201 and the back panel 203, encloses the internal volume of the second housing 2. The side frame 202 of the second housing 2 is embedded in the side wall 101 of the first housing 1, preferably such that the panel 201 of the second housing 2 is located outside the first housing 1 and the back panel 203 of the second housing 2 is located inside the first housing 1. The axial direction of the second housing 2 refers to the direction of extension of the second housing 2, corresponding to the direction of the line connecting the center of the panel 201 and the center of the back panel 203 of the second housing 2. The radial direction of the second housing 2 refers to the direction perpendicular to the axial direction of the second housing 2. Preferably, as shown... Figure 2 As shown, the axis of the second housing 2 is substantially perpendicular to the axis of the first housing 1. The front panel 201 and back panel 203 of the second housing 2 are approximately elliptical, and the front panel 201 and back panel 203 arch outwards in a double-arc shape towards the outside of the second housing 2. That is, the front panel 201 arches outwards towards the side of the front panel 201, and the back panel 203 arches outwards towards the side of the back panel 201. The arching directions of the front panel 201 and back panel 203 are substantially opposite, making the entire second housing 2 pillow-shaped. Preferably, the shape and size of the front panel 201 of the second housing 2 are the same as those of the back panel 203, but their orientations are opposite during installation, making them mirror-symmetrical about the center of the second housing 2. Preferably, the orthographic projection area of ​​the front panel 201 of the second housing 2 is equivalent to four-fifths of the orthographic projection area of ​​the side of the first housing 1 where the second housing 2 is fixed, and / or the volume of the second housing 2 accounts for one-third of the volume of the first housing 1. In this context, the orthographic projection of the panel 201 of the second housing 2 refers to a projection where the projection line is substantially parallel to the axis of the second housing 2, and the projection line of the orthographic projection of the side of the first housing 1 fixed to the second housing 2 is also substantially in the same direction. Under these proportions, the bowed string instrument according to this application exhibits a better resonance effect. Figure 4 In the illustrated embodiment, the back plate 203 of the second enclosure 2 has sound windows 204 at its four corners, which can also be called sound vents, so that the first enclosure 1 and the second enclosure 2 are connected to form a complex cavity resonator. Figure 4 In the illustrated embodiment, the sound window 204 may be shaped like a flower with four petals. In another embodiment, the sound window 204 may have other suitable shapes and be arranged in other numbers at other locations in the second enclosure 2. The sound window 204 is capable of transmitting sound from the second enclosure 2 to the first enclosure 1, thereby coupling with the sound of the diaphragm 7, so that the bowed string instrument according to this application produces a distinctive sound.

[0035] like Figure 1 andFigure 2 As shown, the bowed string instrument according to this application has a vibrating string 10, one end of which is fixed to a vibrating string adjustment device 17 on a head 16, and the other end is directly fixed or fixed to a first housing 1 via a suitable connector. The bowed string instrument according to this application also has a vibration conductor, including a first vibration conductor and a second vibration conductor 6. The first vibration conductor includes a longitudinal conductor 3 and a transverse conductor 4 connected to each other. The longitudinal conductor 3 enters the interior of the second housing 2 from the panel 201 of the second housing 2, and then passes through the back panel 203 of the second housing 2 into the first housing 1. Between the two fixed ends of the vibrating string 10, the first end of the longitudinal conductor 3 exposed outside the second housing 2 supports the vibrating string 10, that is, the vibrating string 10 presses against the first end of the longitudinal conductor 3. Figures 1-4 In the illustrated embodiment, the longitudinal conductor 3 is flat and extends perpendicular to the length of the vibrating string 10, such that its upper surface can support all of the vibrating string 10. The middle portion of the longitudinal conductor 3 is secured to the vibrating conductor support 11 via a fixing pin 12 passing through the longitudinal conductor 3, while the lower surface of the vibrating conductor support 11 is fixed to the panel of the second housing 2. Preferably, the fixing pin 12 passes perpendicularly through the longitudinal conductor 3 at approximately the upper third of its overall length. In another embodiment, the middle portion of the longitudinal conductor 3 may also be connected directly or indirectly to the panel 201 of the second housing 2 in other ways to transmit the vibration of the vibrating string 10 to the second housing 2. After assembly, the vibrating string 10 presses the longitudinal conductor 3 and the vibrating conductor support 11 onto the panel 201 of the second housing 2, while the fixing pin 12 rests against the vibrating conductor support 11 to prevent the longitudinal conductor 3 from further entering the second housing 2. In this way, the vibration of the vibrating string 10 can be transmitted to the panel 201 of the second housing 2 via the longitudinal conductor 3, and then to the entire second housing 2, thereby causing the second housing 2 to resonate. According to another embodiment, other structures can also be used to fix the longitudinal conductor 3 and the vibration conductor support 11 in appropriate positions.

[0036] like Figure 4As shown, the second end of the longitudinal conductor 3 of the first vibration conductor passes through the back plate 203 of the second cabinet 2 from a hole opened on the back plate 203 of the second cabinet 2. Preferably, the size of the hole opened on the back plate 203 of the second cabinet 2 is larger than the longitudinal conductor 3, so that the second end of the longitudinal conductor 3 can freely vibrate within a certain range without being limited by the back plate 203 of the second cabinet 2. Further, the second end of the longitudinal conductor 3 is fixedly or pivotally connected to the first end of the transverse conductor 4 inside the first cabinet 1. Preferably, in the static state, the two are in a perpendicular state to each other. In another embodiment, the two can also not be in a perpendicular state to each other in the static state. In such a case, the transmission efficiency of the vibration is higher and the amplification ratio of the vibration is larger. The second end of the transverse conductor 4 is connected to the diaphragm 7 of the first end portion 102 of the first cabinet 1. The transverse conductor 4 can be directly connected to the diaphragm 7, or can be connected to the diaphragm 7 via the claw portion 8. As shown in Figure 2 and Figure 3 As shown, in one embodiment, the transverse conductor 4 is connected to the diaphragm 7 via three claw portions 8. One end of the three claw portions 8 is connected to the transverse conductor 4, and the other end is uniformly spaced 120° in the circumferential direction, and the lower surface of the claw portion 8 is adhered to the diaphragm 7. The transverse conductor 4 can also be adhered to the diaphragm 7 by one, two or more than three claw portions 8 spaced at corresponding angles in the circumferential direction. Preferably, a support rod 9 corresponding to the number of claw portions 8 can be obliquely supported between the claw portion 8 and the transverse conductor 4 to further fix and ensure the angle of the transverse conductor 4 relative to the diaphragm 7. Preferably, the transverse conductor 4 is perpendicular to the diaphragm 7. Preferably, a pivot 5 can be provided at the junction of the longitudinal conductor 3 and the transverse conductor 4 to pivotally connect the longitudinal conductor 3 and the transverse conductor 4 together. In another embodiment, other connectors in the prior art can also be used to pivotally connect the longitudinal conductor 3 and the transverse conductor 4 together. When vibrating, the vibrating string 10 drives the longitudinal conductor 3 to vibrate, and the vibration of the longitudinal conductor 3 is transmitted to the transverse conductor 4 via the pivot 5 and then to the diaphragm 7. In the case of fixed connection between the transverse conductor 4 and the diaphragm 7, the pivot connection between the longitudinal conductor 3 and the transverse conductor 4 helps to amplify the amplitude and improve the volume. According to another embodiment, the second end of the longitudinal conductor 3 can be pivotally connected to the first end of the transverse conductor 4 inside the first cabinet 1 by other means. The longitudinal conductor 3 and the transverse conductor 4 work together using the principle of leverage to conduct the vibration from the string 10 to the diaphragm 7, so that there is not only the vibration of the cabinet but also the vibration of the diaphragm. The two vibrations form a resonance, which can further improve the volume and beautify the sound quality. It should be noted that, Figure 4 The size and shape of the diaphragm 7 shown in

[0037] As shown in Figures 2-4As shown, the stringed musical instrument according to the present application is also provided with a second vibration conducting member 6. The first end of the second vibration conducting member 6 is directly or indirectly connected to the first vibration conducting member, and the second end of the second vibration conducting member 6 is connected to the first box 1. Preferably, the first end of the second vibration conducting member 6 is connected to the vibration conducting member seat 11, in particular to the lower surface of the vibration conducting member seat 11 corresponding to the side of the treble region. As shown, Figure 2 As shown, the second vibration conducting member 6 extends from the lower surface of the vibration conducting member seat 11 along a direction perpendicular to the axial direction of the first box 1. The second vibration conducting member 6 passes through the interior of the second box 2, the back plate 203 of the second box 2 and the interior of the first box 1 below the vibration conducting member seat 11, and finally connects to the side wall 101 of the first box 1. As shown, Figure 4 As shown, the second end of the second vibration conducting member 6 passes through the back plate 203 of the second box 2 from the hole opened on the back plate 203 of the second box 2. Preferably, the size of the hole opened on the back plate 203 of the second box 2 is larger than the size of the cross section of the second vibration conducting member 6, so that the second vibration conducting member 6 does not directly contact the inner wall of the hole. In this way, the vibration from the vibrating string 10 transmitted by the second vibration conducting member 6 is not affected by the vibration of the second box 2. The second vibration conducting member 6 can directly conduct the vibration from the string to the first box 1, thereby further exciting the resonance produced by the first box 1.

[0038] The resonance system of the stringed instrument according to the present application is composed of four parts, including the resonance of the second body 2, the resonance of the first body 1, the resonance of the membrane 7, and the resonance of the whole instrument. For the resonance of the second body 2, after the vibrating string 10 vibrates, the vibration is first transmitted to the first vibration transmission member, and then transmitted to the panel of the second body 2 through the vibration transmission member seat 11, and further transmitted to the whole second body 2, and finally the whole second body 2 and the air inside the second body 2 resonate. For the resonance of the first body 1, after the vibrating string 10 vibrates, the vibration is first transmitted to the first vibration transmission member, and then transmitted to the second vibration transmission member 6 through the vibration transmission member seat 11, and further transmitted to the side wall 101 of the first body 1, and finally the whole first body 1 and the air inside the first body 1 resonate. For the resonance of the membrane 7, after the vibrating string 10 vibrates, the vibration is first transmitted to the first vibration transmission member, and then transmitted to the second vibration transmission member 6 connected with the first vibration transmission member through the vibration transmission member seat 11, and the second vibration transmission member 6 further transmits the vibration to the membrane 7, thereby driving the membrane 7 to vibrate. For the resonance of the whole instrument, after the vibrating string 10 vibrates, the whole instrument vibrates through the fingerboard 13. In the whole resonance system, the whole instrument, the vibrating string carrier 14, the panel 201 of the second body 2, the back plate 203 of the second body 2, the membrane 7, and the air inside the instrument cavity form a coupled resonance system. Through the coupled resonance of the four parts, the stringed instrument according to the present application can increase the volume and beautify the tone, and thus achieve the best effect of volume and tone.

[0039] According to a further embodiment, the vibrating string carrier 14 of the stringed instrument according to the present application can be hollow. The hollow vibrating string carrier 14 reduces the weight of the whole stringed instrument and provides an additional resonance cavity, which can amplify the volume and improve the tone.

[0040] According to a further embodiment, the material of the membrane 7 can be python skin, or a high polymer material film such as a polyester fiber film, etc. According to a further embodiment, one or more components such as the vibrating string carrier 14, the first body 1, the second body 2, the first vibration transmission member, the second vibration transmission member 6, the vibration transmission member seat 11, etc. can be partially or entirely made of wood, carbon fiber material, or a combination of both. As shown in Figure 1 and Figure 4 The material of the membrane 7 is a polyester fiber film, and the vibrating string carrier 14 and the first body 1 are made of carbon fiber material. The following compares the stringed instrument using python skin membrane 7 and wooden vibrating string carrier 14 and wooden first body 1 (hereinafter referred to as “traditional material stringed instrument”) to discuss in detail the advantageous effects of the stringed instrument using polyester fiber membrane 7 and carbon fiber vibrating string carrier 14 and carbon fiber first body 1 (hereinafter referred to as “new material stringed instrument”).

[0041] Figure 5 The frequency spectrum is shown when the A3 tone is played using a traditional stringed instrument. Figure 6 The frequency spectrum is shown when the A3 tone is played using a new stringed instrument. As shown in Figure 5 and Figure 6 As shown in the playing and receiving conditions are the same, the fundamental tone energy of the traditional stringed instrument and the new stringed instrument playing the A3 tone is measured, the traditional stringed instrument measures -70.26 dBFS, the new stringed instrument measures -61.60 dBFS, the difference is 9.06 dBFS, which means that the energy of the fundamental tone of the new stringed instrument is 8.05 times that of the traditional stringed instrument. From the energy of each overtone in the measured overtone series, the first overtone, the second overtone, the third overtone, the fourth overtone and the fifth overtone of the traditional stringed instrument and the new stringed instrument are compared, and it is found that the overtone energy of the new stringed instrument is obviously stronger than that of the traditional stringed instrument and is average, without sudden and large attenuation.

[0042] Figure 7 The frequency spectrum is shown when the A4 tone is played using a traditional stringed instrument. Figure 8 The frequency spectrum is shown when the A4 tone is played using a new stringed instrument. As shown in Figure 7 and Figure 8 As shown in the playing and receiving conditions are the same, the fundamental tone energy of the traditional stringed instrument and the new stringed instrument playing the A3 tone is measured, the traditional stringed instrument measures -70.26 dBFS, the new stringed instrument measures -61.60 dBFS, the difference is 9.06 dBFS, which means that the energy of the fundamental tone of the new stringed instrument is 8.05 times that of the traditional stringed instrument. From the energy of each overtone in the measured overtone series, the first overtone, the second overtone, the third overtone, the fourth overtone and the fifth overtone of the traditional stringed instrument and the new stringed instrument are compared, and it is found that the overtone energy of the new stringed instrument is obviously stronger than that of the traditional stringed instrument and is average, without sudden and large attenuation.

[0043] Figure 9 The frequency spectrum is shown when the C2 tone is played using a traditional stringed instrument. Figure 10 The frequency spectrum is shown when the C2 tone is played using a new stringed instrument. As shown in Figure 9 and Figure 10As shown, in the performance of C2, under the same performance and receiving conditions, the fundamental energy of the traditional material stringed instrument and the new material stringed instrument playing C2 is measured, the traditional material stringed instrument measures -80.89 dBFS, the new material stringed instrument measures -75.02 dBFS, the difference is 5.87 dBFS, which means that the energy of the new material stringed instrument is 8.05 times that of the traditional material stringed instrument. Then, from the measured energy of each overtone in the overtone series, the first overtone, the second overtone, the third overtone, the fourth overtone and the fifth overtone of the traditional material stringed instrument and the new material stringed instrument are compared, and it is found that the overtone energy of the new material stringed instrument is obviously stronger than that of the traditional material stringed instrument.

[0044] Next, the decay of the traditional material stringed instrument and the new material stringed instrument in the performance of high-pitched sound is compared according to the waveforms of the frequency spectrum of A4 and A3. Those skilled in the art know that A4 is one octave higher than A3. For the traditional material stringed instrument, the waveforms of the frequency spectrum of A4 and A3 are compared as follows: Figure 5 and Figure 7 The difference between the waveforms of the frequency spectrum of the traditional material stringed instrument playing A4 and the waveforms of the frequency spectrum of the traditional material stringed instrument playing A3 is large, which indicates that the decay of the traditional material stringed instrument in the performance of high-pitched sound is large. For the new material stringed instrument, the waveforms of the frequency spectrum of A4 and A3 are compared as follows: Figure 6 and Figure 8 The difference between the waveforms of the frequency spectrum of the new material stringed instrument playing A4 and the waveforms of the frequency spectrum of the new material stringed instrument playing A3 is small, which indicates that the decay of the new material stringed instrument in the performance of high-pitched sound is small.

[0045] In summary, through the frequency spectrum analysis of the traditional material stringed instrument and the new material stringed instrument playing C2, A3 and A4, it is found that the sound of the new material stringed instrument is superior to that of the traditional material stringed instrument in terms of volume or tone. In the high-pitched sound area (A3 string above one octave), the volume is sufficient, the string touch is sensitive, and the response is fast and direct. In the low-pitched sound area (C2G2 string), the tone is rich, thick and wide. In the medium-pitched sound area, it is round, soft and beautiful, with a special charm of ancient color, and also has a sweet feeling of immersion. At the same time, due to the light weight and high strength of carbon fiber material, the use of carbon fiber material to make the stringed instrument according to the present application can reduce the weight of the stringed instrument. In this way, the player can be more convenient and flexible when carrying and playing the instrument. At the same time, the use of carbon fiber material with smaller thickness can achieve the same strength as the wood material with larger thickness, so the wall thickness of the cavity of the stringed instrument according to the present application can be made smaller. In this way, under the condition that the size of the instrument is unchanged, the cavity of the stringed instrument according to the present application can have a larger volume, so that the stringed instrument according to the present application has a better resonance effect.

[0046] The technical scope of the present application is not limited to the above description, and the features in each embodiment can be combined with each other. Those skilled in the art can make various modifications and improvements to the above embodiments without departing from the technical idea of the present application, and these modifications and improvements should all fall within the protection scope of the present application.

Claims

1. A stringed musical instrument comprising a hollow first body, a vibrating string carrying rod arranged on the first body, and a vibrating string, a first end portion of the first body being provided with a first opening, the first opening being closed by a diaphragm, characterized in that, The stringed instrument includes a hollow second body provided on the first body, the second body including a panel, a back plate, and a side frame connecting the panel and the back plate, the side frame extending along edges of the panel and the back plate and enclosing an internal volume of the second body together with the panel and the back plate.

2. The stringed musical instrument of claim 1, wherein, The side frame of the second body is inlaid on the side wall of the first body, such that the panel of the second body is located outside the first body and the back plate of the second body is located inside the first body, and such that the axial direction of the second body is perpendicular to the axial direction of the first body.

3. The stringed musical instrument of claim 2, wherein, The panel and the back plate of the second body are arched outwardly of the second body.

4. The stringed musical instrument of claim 3, wherein, The volume of the second body is equivalent to one third of the volume of the first body, and / or the area of the orthographic projection of the panel of the second body is equivalent to four fifths of the area of the orthographic projection of the side of the first body on which the second body is fixed.

5. The stringed musical instrument of claim 1, wherein, The cross-sectional shape of the first body perpendicular to the axial direction is oval.

6. The stringed musical instrument of any one of claims 1-5, wherein, A first vibration conductor is further included, one end of the first vibration conductor supporting the vibrating string and receiving vibrations from the vibrating string, the other end of the first vibration conductor transmitting vibrations from the vibrating string to the end of the first body.

7. The stringed musical instrument of claim 6, wherein, The first vibration conductor includes a longitudinal conductor and a transverse conductor, the first end of the longitudinal conductor extending out of the second body and bearing the vibrating string, the middle part of the longitudinal conductor being directly or indirectly connected to the panel of the second body to transmit vibrations of the vibrating string to the second body, the second end of the longitudinal conductor extending into the interior of the first body through the second body and being connected to the first end of the transverse conductor, the second end of the transverse conductor being connected to the diaphragm of the first end of the first body to transmit vibrations of the vibrating string to the diaphragm of the first end of the first body.

8. The bow instrument of claim 7, wherein, The second end of the longitudinal conductor is pivotally connected to the first end of the transverse conductor.

9. The bow instrument according to claim 7 or 8, characterized in that, The second end of the transverse conductor is connected to the diaphragm via a claw portion.

10. The stringed musical instrument of claim 6, wherein, A second vibration conductor is further included, the second vibration conductor transmitting vibrations from the vibrating string to the side wall of the first body.

11. The stringed musical instrument of claim 10, wherein, The first end of the second vibration conductor is directly or indirectly connected to the first vibration conductor.

12. The bow instrument of claim 11, wherein, The longitudinal conductor of the first vibration conductor is fixed on the second body via a vibration conductor seat, the first end of the second vibration conductor being connected to the vibration conductor seat.

13. The bow instrument of claim 1, wherein, The second end of the first body is open.

14. The stringed musical instrument of claim 1, wherein, The second end of the first body is provided with a notch to facilitate the operation of the bow.

15. The bow instrument of claim 1, wherein, The vibrating string bearing member is hollow.

16. The bow instrument of claim 1, wherein, An acoustic window is formed on the back plate of the second body.

17. The bow instrument of any one of claims 1-16, wherein, One or more of the entirety or part of each component of the stringed instrument is made of a carbon fiber material.

Images