JP2006317917A - Rubbed string mechanism, rubbed string instrument provided with rubbed string mechanism and electric rubbed string instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an epoch-making rubbed string mechanism capable of providing a chance of performance to many people and, moreover, capable of widening such a possibility of instrumental performance as to make a polyphonic chord performance and a contrapuntal polyphonic performance or harmony performance, which cannot be performed according to the conventional rubbed string instruments, possible by means of one performer. <P>SOLUTION: The rubbed string mechanism is composed of a rubbed string member 1, a speed control motor 3 that supplies a rotational power of the rubbed string member, a transmission member 2 which transmits the rotational power of the speed control motor to the rubbed string member and a speed control device 4 which controls rotational speed of the speed control motor in accordance with the operation of a foot pedal 4a. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  There is a type of conventional stringed instrument that plays by rubbing strings with a bow. Western violin genus and cello genus instruments and Chinese archery. Abbreviated as “musical instrument that rubs strings”, it is sometimes called a stringed instrument.

  In recent years, electric stringed instruments have been developed that amplify string vibrations using electrical techniques and that are used for performances. There are electric violin and electric cello, which are electric bowstring instruments based on the violin and cello instruments. Some electric violins and electric cellos based on violins and cellos have a pickup for detecting string vibration using a piezoelectric element (see, for example, Patent Document 1).

  Also, there are some which use a rotating body as a stringing means to generate a continuous sound and use it for performance (for example, see Patent Document 2).

  There is also a European stringed instrument called Hardy Gurdy. Pine wood is applied to the curved surface of a wooden disk, the disk is manually turned by a handle, and is struck by a rotating disk (described in Non-Patent Document 3).

Japanese Patent Publication No. 2004-144774 Japanese Patent Publication No. 9-6332 “World Music and Culture Encyclopedia” written by Alan Blackwood, translated by Satoku Betsumiya, Toyo Shorin, June 5, 2001, first edition, P118

  In the above-mentioned violin genus and cello genus stringed instruments, and the electric stringed instrument described in Patent Document 1, the stringing is performed with a bow held in the right hand.

  The traditional playing method has one end of a long thin bow and rubs the strings using that bow. Enormous amount of practice is required to learn the technique to create the optimal bowed state at that moment. The movement of the bow is mainly due to the movement of the arm. For example, in the practice of a violin or cello, the arm is moved for a long time.

  If the performer is an elderly person, the practice of the instrument that bows with a bow may be a physical burden, and the performance practice itself is difficult.

  Also, since the performance is performed with a bow in the right hand, the pitch is determined by pushing the string with the finger of the left hand. In order to push the string by relying only on the finger of the left hand, the performance must be like a single melodic melody, as represented by chords created by layered sound accumulation and Western classics In order to play harmony with multiple voice parts simultaneously or to perform a musical composition with a music composition with a counterpoint, there was no choice but to rely on ensembles by multiple players.

  The sound generating device described in Patent Document 2 manually adjusts the rotation operation of the string contact member. This means that the string is held with one hand and the sound sustaining device is operated with the other hand, and it is hard to say that it exceeds the range of the music structure of the conventional bowed instrument. The same applies to Hardy Gurdy of Non-Patent Document 1.

  The bowing mechanism of the present invention solves the problems of the conventional bowed instruments and provides many people with the opportunity to perform without sacrificing the rich musical expression of the bowed instruments. However, it expands the range of music composition of a single bowed instrument.

In order to solve the above-mentioned problems, the present invention provides the stringing member according to claim 1, a speed control motor that is the rotational power of the stringing member, and the rotational power of the speed control motor transmitted to the stringing member. There is provided a stringing mechanism comprising: a transmission member that controls the rotation speed of a speed control motor based on an operation of a foot pedal.

  By using a mechanism that rotates the chord member with a speed control motor and controls the rotation speed of the speed control motor by operating the foot pedal, it is no longer necessary to move the bow with the movement of the arm. This is because the string can be formed by simply pressing the string and pressing the string against the rotating string member.

  Foot pedals are widely used in automobiles, electric sewing machines, and the like, and are used by many people regardless of age or gender. The foot pedal is an operation means that is easy to operate and has little physical burden.

  Therefore, it has become possible to reduce the physical burden of playing musical instruments by using a foot pedal.

  Also, by using a chord member instead of a bow, the number of strings that can be chorded at the same time could be increased.

  With a bowed instrument using a conventional bow, only one string or two adjacent strings can be bowed at the same time. However, by using a chording member, it has become possible to simultaneously chord two, three or more strings at the same time. In addition, it is now possible to press and string multiple strings that are not next to each other.

  In addition, by means of manipulating the rotation of the chord member using a foot pedal, a hand that should handle a bow in a conventional chord instrument can be used to hold down the string.

  For this reason, with conventional bowed instruments, a single player plays chords that require multiple instruments and their players, chords that play multiple voices simultaneously and in parallel, and music that has a counterpoint structure. be able to.

  According to a second aspect of the present invention, the chord member includes a disk-shaped rotating body, and an elastic body layer provided on the curved surface of the rotating body, and a friction body that contacts and chords the string on the elastic body. Provided is a stringing mechanism characterized by being installed with a simple double-sided tape or adhesive.

  When the friction body is directly installed on the rotating body without providing an elastic body, the vibrating string hits the rotating body, and a “tick” noise occurs. By providing a layer of elastic body on the disk-shaped rotating body, and installing a friction body that touches the string and rubs it on it, the elastic body acts as a cushion and can reduce noise It became.

  An acoustic stringing instrument comprising the stringing mechanism according to claim 3 is provided.

  According to a fourth aspect of the present invention, there is provided an electric stringed musical instrument provided with a stringing mechanism.

  The bowing instrument and the electric bowing instrument using the bowing mechanism of the present invention can improve the problems in the conventional bowing instrument. The bowed musical instrument using the bowing mechanism of the present invention will be described later with reference to examples.

  Also in conventional stringed instruments, the range of music composition can be expanded by installing the stringing mechanism of the present invention.

  As described above, the stringing mechanism of the present invention can provide many people with an opportunity to perform, and is also a counter-polyphonic performance, which is impossible with conventional stringed instruments, and complex and multi-layered chords. This is a revolutionary stringing mechanism that allows one player to perform harmony and expand the possibilities of instrumental performance.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  First, referring to FIG. 1, the stringing mechanism of the present invention will be described. FIG. 1 is a diagram described for explaining the mutual relationship of the members of the stringing mechanism of the present invention.

  The disc-shaped scoring member 1 rotates with a speed control motor 3 as rotational power via a transmission member 2. The speed control device 4 controls the rotational speed of the speed control motor 3 based on the operation of the foot pedal.

  The speed control motor 3 is provided with a headgear, and the motor and the headgear are integrated. We thought that using headgear according to the intended use is a widely used technology. Hereinafter, the drive shaft of the headgear that rotates in response to the drive of the motor is described as the drive shaft 3 a of the speed control motor 3.

  The scoring member 1 is described as an example of a disk shape. In FIG. 1, the curved surface that is the side surface of the chord member 1 is described as a shape having a bulge at the center of the curved surface, like a ridge. This is because when the corners of the chord member 1 come into contact with the strings, noise may be generated or the friction body 7 may be turned up. Mainly, four kinds of scuffing members 1 having different side shapes were produced and used for implementation. They are described in FIG.

  The transmission member 2 has been described as an example of a mechanism in which a coupler is provided on the drive shaft 3a of the speed control motor 3 to transmit rotational power via two universal joints. In addition, there is an implementation in which the transmission member 2 is used by using a timing belt or a gear.

  In order to reduce noise generated during operation, it is desirable to reduce the number of relay members such as the transmission member 2. In some cases, the string member 1 is directly installed on the drive shaft 3a of the speed control motor 3 in order to reduce noise. When the string member 1 is installed directly on the drive shaft 3a of the speed control motor 3, the transmission member 2 is not provided.

  A rotating shaft 2a that rotates the chord member 1 is supported at both ends by a bearing 2b and rotates. In order to facilitate understanding of the relationship between the rotary shaft 2a and the chord member 1, the bearing 2b and the buffer material 5 are described as being cut.

  4 is a speed control device. For ease of illustration, implementations connected by electrical cords have been described as examples. As for the foot pedal of the speed control device 4, an embodiment using a stepping type foot pedal is described, and an electric cord connecting the speed control motor 3 and the speed control device 4 is included in the speed control device 4. Described. For the speed control motor 3 and the speed control device 4, AXU series products manufactured by Oriental Motor Co., Ltd. were used.

  The stepping plate 4a operates the stepping plate 4a by a vertical movement of the toes and the heel, like a seesaw.

  There is also an implementation in which a belt for hooking a foot is installed on the stepping plate 4a.

  Reference numeral 5 denotes a buffer material. When the stringing mechanism of the present invention is installed in the stringed instrument main body, the vibration generated from the speed control motor 3 and the transmission member 2 causing noise is provided so as not to be transmitted to the instrument main body.

  In FIG. 2, the disc-shaped scoring member 1 will be described.

  The layer 6 on which the radiation extending from the center of the circle is drawn is an elastic body, and the other layer 7 is a friction body. For the friction body 7, tracing paper, plain printing paper, horse tail hair, fishing vinyl thread or carbon thread were used as a test. As a means for installing the friction body 7, a double-sided tape was used on the inside.

  The friction body 7 is formed as the friction body 7 with the material below the tracing paper described above and the double-sided tape used for bonding as one layer. The reason for using the double-sided tape is to fix the friction body 7 in a detachable state. When rubber is used as the material of the elastic body 6, there is an implementation in which the friction body 7 is installed using an adhesive. The friction body 7 can be exchanged by installing the friction body 7 in a detachable state.

  There is an implementation in which the rotating body 8 is made from a laminated material made of wood or wood fiber, the surface of the side surface is smoothed, and the pine yarn is directly attached. The elastic body 6 and the friction body 7 are not installed. As a result, the string and the rotating body collided with each other by string vibration, and ticks and noises were generated.

  Therefore, the elastic body 6 is used as the lower layer of the friction body 7. This has made it possible to reduce noise caused by string vibration.

  The elastic body 6 was implemented with a 2 mm sponge layer and a 2 mm rubber layer. The stringed state was affected by the thickness of the sponge and rubber, the bonding method, and the width.

  Referring to the case of horse tail hair used in conventional bowed instruments, the horse tail hair that is generally stretched on bows that bow the cello is thicker than the horse tail hair stretched on violin bows. Hard tail hair is used.

  Then, guessing, using a rubber plate for the elastic body 6 of the chording member 1 for chording the bass string and using a sponge for the chording member 1 for chording the treble string, the difference in the thickness of the string to be chorded In some cases, the elastic body 6 is changed.

  In the implementation, there is an implementation in which the elastic bodies having different hardnesses are stacked and used as a layer of the elastic body 6.

  In FIG. 3, the joint α when the friction body 7 is installed in the disc-shaped scoring member 1 will be described.

  FIG. 3 is a view of the chord member 1 seen from the side, and shows an example of the joint α.

  The friction body 7 is cut and aligned so that both ends of the cut end do not overlap, and is installed on the elastic body 6. This is because when the cut ends overlap, a level difference is created, and the strings get caught when rubbing and cause noise.

  Further, not only the cut and alignment, but also the cut and alignment was performed so that the joint α was inclined as shown in FIG. By hooking diagonally, string catching could be reduced.

  In FIG. 4, an embodiment will be described in which the friction body 7 is formed in an annular shape and rotated in a belt type instead of the disc-shaped chord member 1.

  Reference numeral 9 denotes a belt guide or guide roller, and black reference numeral 10 denotes a flat belt. 11 is a string. The pulley 2c for rotating the flat belt 10 was installed in the rotating shaft 2a.

  In the case where the disc-shaped scoring member 1 is used, a design precondition is to secure a space for installing the scoring member 1, and the design of other peripheral members is subordinately determined therefrom.

  By using the friction body 7 as a belt as shown in FIG. 4, the design options related to the installation space are expanded.

  Although the flat belt 10 is illustrated in FIG. 4, a timing belt that can transmit high torque may be used instead of the flat belt. There is also an implementation in which only the annular friction body 7 is rotated without providing the flat belt 10 and the timing belt.

  In the following, an embodiment of a stringed musical instrument in which a set of the stringing mechanism of the present invention is installed will be described with reference to FIGS. 5, 6, 7, and 8.

  The string 11 is stretched by the string holding unit 12 and the string winding unit 13. It is assumed that metal strings used in conventional stringed instruments are used, and many metal strings are provided with small metal fittings at one end of the strings. This metal fitting is used as a means for fixing a string.

  In the drawing, a round member indicated by 11a is a metal fitting. A structure in which the string is held by the metal fitting 11a is adopted.

  The string holding part 12 holds the string 11 by providing a cut through which the string passes and the metal fitting 11a is caught at the cut.

  An example in which two strings 11 are stretched is described as an example. The number of strings 11 can be increased from 2 or decreased. The string vibration generated when the string 11 is pressed and struck by the rotating stringing member 1 is transmitted to the soundboard 15 via the lower piece 14.

  The soundboard 15 has a structure having a bulge as seen in FIG. There is also an embodiment in which the sound board 15 is flat. As for the cypress, this part uses a snake skin, and there is also an implementation that diverted it.

  Below the string 11 is a fingerboard 16. The fingerboard 16 is provided with a scale 17 indicating a pitch position and a number 18.

  There is a kind of musical score called a number score. In the Taisho koto, the musical notation is written in numbers in the form of a widely used score. Each key that presses a string is assigned a number, and a song can be played when the performer plays the string by pressing the key according to the numbers in the score. It is easier to read than Western notation, and even beginners can practice.

  The bowed instrument provided with the bowing mechanism of the present invention described in FIGS. 5 to 8 is also provided with numerals 18 corresponding to the scales 17 provided on the fingerboard 16 on the assumption that a numerical score is used.

  An upper piece 9 is provided at one end of the fingerboard.

  FIG. 6 is a side view of the main body 20 cut from AA and describing the internal structure.

  The main body 20 has a shape of a box with a partition 21 inside. The speed control motor 3 is installed by a fixing screw 22 with the buffer material 5 sandwiched between the partitions 21.

  The sound emitted from the soundboard 15 is resonated by the resonance cylinder 23.

  FIG. 7 is a view from below.

  Since nothing is provided on the bottom surface of the resonance cylinder 23 shown in FIG. 7, the soundboard 15 is visible. There is also an implementation in which paper or a thin plate is provided on the bottom surface of the resonance cylinder 23. If a thin board or paper is provided, the sound can be changed.

  The bottom surface of the main body 20 is floated by the legs 24. The sound spreads out from the gap at the bottom.

  Reference numeral 25 denotes a lid that is opened when the speed control motor 3 is removed, and an example in which the four corners are fixed with screws is described. When the speed control motor 3 needs to be replaced, the cover 25 is removed and the speed control motor 3 is taken out.

  FIG. 8 is a diagram in which a seated player plays a bowed instrument using one set of the bowing mechanism of the present invention. The form which puts the main body 20 on the stand 26 and performed is described.

  9 to 15 describe an embodiment of an electric stringed instrument using two stringing mechanisms of the present invention.

  Among the reference numerals indicating the members of the stringed musical instrument described in FIGS. 5 to 8, the string 11, the metal fitting 11a provided at one end of the string 11, the string holding part 12, and the string winding part 13 are shown in FIG. It was diverted to the electric bowed instrument described in FIG.

  This is because, although there are some differences in shape and dimensions, it is considered that the members that perform the same function are easier to understand if the reference numerals are diverted.

  The electric stringed instrument described in FIGS. 9 to 15 uses two stringing mechanisms illustrated in FIG. Therefore, the numerical notation of each member of the chord mechanism is also used as it is.

  In the implementation, the string vibration was detected by installing a pickup using a piezoelectric element that is mainly used in an electric stringed instrument based on a violin genus or cello genus instrument. The piezoelectric element plate was installed in the main body 26 between the lower piece 27 and the chord member 1 at the installed position.

  Since the pickup used a conventional product, it is not shown in the figure.

  In conventional electric guitars and electric violins, electrical equipment, wiring, output terminals, input terminals, volume knobs and sound quality adjustment knobs related to the pickup are installed on the instrument body. There is also an embodiment in which an electric equipment provided with an electric violin is formed by cutting a part of the body 26 of the electric stringed musical instrument having the stringing mechanism of the present invention to make a dent.

  The string 11 is set by the string winding unit 13 and the string holding unit 12. The string holding portion 12 is provided with a hole through which the string 11 is passed, and the string 11 is fixed by hooking a metal fitting 11 a provided at one end of the string 11.

  The body 26 was cut out from wood and molded like an electric guitar or an electric violin.

  In order to install the speed control motor 3, an attachment member 28 is provided on the body 26. The attachment member 28 is screwed to the speed control motor 3 with the cushioning material 5 interposed therebetween, similarly to the partition 21 of the bowed instrument described in FIGS.

  In the implementation, the electric stringed instrument described in FIGS. 9 to 15 has eight strings 11 stretched. Accordingly, eight sets of string holding portions 12 and string winding portions 13 are also provided.

  9 to 15, the lower piece 27 is independent for each string so that the distance between the string 11 and the string member 1 can be adjusted for each string, and the height can be adjusted. It has the structure to do. Therefore, 8 lower pieces 27 were also installed.

  The detailed structure of the lower piece 17 will be described with reference to FIG. The end in contact with the string 11 was cut into a chevron. A hole for inserting the height adjusting screw 29 used for adjusting the height of the lower piece 27 is made, and then a lower piece hole 30 for inserting the lower piece 27 is made. The lower piece hole 30 is located between the string holding portion 12 and the string member 1 as shown in FIG. Then, the lower piece 27 was inserted into the lower piece hole 30 provided in the body 26 in a detachable state.

  Reference numeral 31 denotes a protective plate for protecting the scoring member 1. When the musical instrument falls, the chord member 1 is protected. In addition, the bearing 2b is also provided. As shown in FIG. 1, the bearing 2b was installed with the cushioning material 5 interposed therebetween. Further, depending on the implementation, the cushioning material 5 may not be provided around the bearing 2b.

  The fingerboard 32 is not functionally different from the bowed instrument described in FIGS. There is also a scale 33 indicating the pitch position. The musical instruments described in FIGS. 9 to 15 have two fingerboards 32 arranged in parallel. This is because two sets of the chord member 1 are used.

  When practicing the performance, the scale 33 is written with the scale name indicated by the scale instead of the number. This is for visually recognizing the pitch position, and is widely used in keyboard instruments as an introduction to practice for beginners.

  There is also an implementation in which fret processing is performed at the position of the scale 33.

  Details of the upper piece 34 are shown in FIG. In the musical instrument described in FIGS. 9 to 15, the string contact surface of the upper piece is shifted stepwise to give tension and tension to the thick string. In many conventional stringed instruments, the string contact surface of the upper piece is installed linearly, and is installed so as to be perpendicular to the longitudinal direction of the string.

  The string contact surface of the upper piece 34 is shifted stepwise because the conventional string used in the cello is used in the electric stringed musical instrument described in FIGS. .

  Therefore, if the thickness of the string or the material of the string changes, there is a possibility that the string contact position can be linearly arranged like the upper piece of the conventional stringed instrument.

  The spacer 35 was used for fixing at a position suitable for playing the fingerboard 32. The fingerboard 32 is screwed so that the distance between the string 11 and the fingerboard 32 can be finely adjusted. By changing the shape of the spacer 35, the position of the fingerboard 32 can be finely adjusted.

  FIG. 10 is an external view seen from above, and the strings 11 are not shown for ease of illustration. FIG. 11 is an external view when the string 11 is installed.

  FIG. 14 is a diagram describing an example of a performance method. A musical instrument is placed between the feet, and the stepping plate 4a of the speed control device 4 is operated with the feet to perform. The body 26 is placed on the chair where the performer is seated.

  The player's left foot and the speed control device 4 operated by the left foot are omitted from the middle of the electric cord so that the mutual relationship between the player's body position and the musical instrument can be easily understood.

  When viewed from the performer, the chord member 1 positioned on the right side is operated with the foot pedal of the right foot, and the string 11 to be chorded by the right chord member 1 is pressed with the right hand to perform the chord. Repeat for the left side.

  In practice, the four strings 11 to be struck by the right hand stretched strings that can produce a high range like a violin, and the four strings 11 played by the left hand stretched the cello strings. This makes it possible to play the violin range with the right hand and the cello range with the left hand.

  FIG. 15 shows the support member 36 of the musical instrument. The body 26 is fixed by a detachable method. In practice, a tripod support member 36 was fabricated and described in the example.

  16 and 17, the positional relationship between the bowing mechanism of the present invention and the lower piece of the conventional violin and the bow will be described with reference to the drawings, and the structure of the bowing will be described.

  FIG. 16 shows the tail hair 37 and the lower piece 38 of the horse stretched on the bow used for the violin, and the positional relationship at the time of stringing is described. FIG. 17 describes the positional relationship between the contour line of the disc of the chord member 1 and the chord 11. FIGS. 16 and 17 both illustrate the case where the strings 11 are stretched by four.

  In the conventional violin, the horse's tail hair 37 can simultaneously slash only two adjacent strings among the four strings stretched. This is a structural problem in conventional stringed instruments.

  In the stringing mechanism of the present invention, the stringing member 1 does not touch the string 11 when not played. When the performer presses the string 11, the string member 1 and the string 11 come into contact with each other and are stringed.

  The direction in which the string 11 is pressed is the direction in which the string 11 is pressed down toward the center of the disk, and the direction in which the string 11 is pressed against the outer periphery of the disc-shaped string member 1.

  In the implementation in which the annular friction body 7 shown in FIG. 4 is rotated in a belt manner, the positional relationship with the string 11 is the same. When the performer presses the string 11, the string 11 and the annular friction body 7 are It is installed in a positional relationship where it touches and is struck.

  Also in the implementation shown in the chord member 1 or FIG. 4, all of the pressed strings 11 can be rubbed simultaneously, for example, four. A plurality of strings 11 that are not adjacent to each other can be rubbed simultaneously.

  In FIG. 18, the side shape of the disc-shaped scoring member 1 will be described.

  In the implementation, rotating bodies 8 having various shapes were produced. They are described as examples.

  From the left, the rotating body 8 (V) that has not been processed. Rotating body 8 (W) that has been chamfered. A rotating body 8 (X) with a central portion on the side surface of the disk bulging and shaped like a bowl. The rotator 8 (Y), which has a swelled shape and a swelled shape, has been produced.

FIG. 4 is a diagram showing a stringing mechanism according to the present invention, for explaining the mutual relationship between members. The figure which described the friction body, the elastic body, the rotary body, and the rotating shaft of the chord member. The figure which described the joint of the friction body used for the chord member. The figure which described the Example of the stringing mechanism using a flat belt. The figure which looked at the bowed instrument using one set of the bowing mechanism of this invention from the upper direction. The AA cross section and side view of the bowed instrument of FIG. The figure which looked at the bowed instrument of FIG. 5 from the downward direction. The figure which described the example of performance of the bowed instrument of FIG. The side view of the electric stringed musical instrument which used two sets of the stringing mechanism of this invention. The figure which looked at the electric stringed instrument in the state which has not stretched the string from the upper part. The figure of the form which stretched eight strings on the electric stringed instrument. BB sectional drawing in FIG. 11 explaining the structure of the lower piece of an electric bowed instrument. An enlarged view of the upper piece of an electric bowed instrument. The figure which described the example of a performance of an electric bowed instrument. The side view which described the tripod which supports an electric bowed instrument and an electric bowed instrument. The figure which described the bottom piece of the violin. The figure which described the outline and string of the scuffing member. The figure which compares the shape of a chord member.

Explanation of symbols

2 Transmission member 2a Rotating shaft 2b of the chording member 1b Bearing for holding the rotating shaft 2a
3a Drive shaft of speed control motor 4 Speed control device 4a Stepping plate 9 Guide roller 11 String 11a Metal fitting provided at one end of string 12 String holding part 13 String winding part 14 Lower piece 16 Fingerboard 17 Scale 18 indicating the pitch position Numbers marked on the scale 19 Upper piece 20 Main body of the bowed instrument using one set of bowing mechanisms 21 Partition 22 Fixing screw 23 Resonant cylinder 24 Foot 25 Lid 26 Body of an electric bowed instrument using two sets of bowing mechanisms 27 Electric friction Lower piece of stringed instrument 28 Mounting member 29 Height adjusting screw 30 Lower piece hole 31 Protection plate 32 Fingerboard of electric stringed instrument 33 Scale indicating scale position of electric stringed instrument 34 Upper piece of electric stringed instrument 35 Spacer 36 Support member 37 Conventional Horse tail stretched over a bow used for violins
Mao 38 Violin bottom piece

Claims (4)

A stringing member, a speed control motor that is the rotational power of the stringing member, a transmission member that transmits the rotational power of the speed control motor to the stringing member, and the speed control motor based on an operation of a foot pedal. A stringing mechanism comprising a speed control device for controlling a rotation speed. The chord member includes a disk-shaped rotating body, an elastic body layer provided on a curved surface of the rotating body, and the friction body mounted on the elastic body with a detachable double-sided tape or an adhesive. The stringing mechanism according to claim 1. An acoustic stringed instrument comprising the stringing mechanism according to claim 1. An electric stringed instrument comprising the stringing mechanism according to claim 1.

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