JP3136157U - Shamisen for elementary school students - Google Patents

Abstract

[PROBLEMS] To be easily handled by elementary school students, without damaging the original timbre of the shamisen, suitable as an educational instrument for elementary school students, and enabling the transmission of the traditional Japanese shamisen to future generations. The purpose is to provide a shamisen.
SOLUTION: The thickness of the buttock is 0 to 2 mm thinner than that of the thin ridge, and the buttock is formed of one kind of wood selected from the group consisting of safflower, quince or rosewood. The collar portion is composed of an upper collar, a middle collar, and a lower collar, and the lower collar penetrates a side portion of the trunk portion and is fitted to the trunk portion, and the respective collars are fitted to each other at a joint portion. The length of the upper collar is formed to be shorter than the length of the upper collar of the long shamisen, and is formed so that the center of gravity of the shamisen extends over the lower collar.
[Selection] Figure 1

Description

  The present invention relates to a shamisen for elementary school students. More specifically, the body part is small compared to the body of the Nagatomi Shamisen, the cross-sectional shape is provided with a collar part having a substantially triangular shape, and the thickness is thinner than that of the thin bowl, and the length of the upper bowl is It is related to the shamisen for the upper grades of elementary school, which is formed two times shorter than the length of the upper arm of the Nagatomi Shamisen, and the center of gravity of the Shamisen is formed to run over the lower arm.

  The shamisen is one of the traditional Japanese instruments. The tone that was created and refined by Japanese original musicality for a long time is the foundation of the Japanese mind and has long healed the Japanese mind.

  The shamisen is usually played in a straight position with the torso approximately in the middle of the right knee and the base of the foot. Use a bee held in the right hand to play, make a sound by knocking down a bee on a silk cocoon, or scooping up a cocoon with a bee. A sound is produced even with the index finger, middle finger, and ring finger of the left hand. The shamisen is an excellent traditional musical instrument that can achieve a variety of nuances and a variety of timbres using three different threads.

  In order to convey the shamisen, which is a traditional Japanese instrument, and its pleasant tone to future generations, the spread of the shamisen to young people is now desired. To that end, it is important for children to become familiar with the shamisen from an early age through elementary school music classes, to be impressed with the tone of the shamisen, and to enjoy the pleasure of playing the shamisen.

  The traditional shamisen for adults has a total length of about 3 inches (about 100cm), shorter arms than adults, and the weight of the cocoon is too heavy for the less powerful elementary school children. Is thick, so it is difficult to hold the thread, and the torso is large and heavy, making it difficult to play and difficult to use as a teaching instrument.

  The average height of elementary school students (5th and 6th graders) is about 142cm on average for men and women (2005, Ministry of Education, Culture, Sports, Science and Technology School Health Statistics Survey), and the average height for men and women at the age of 20 is about 165cm. On the other hand, because it is as low as 23cm and the arm length is small in proportion to the height difference, even the shamisen for adults and the slightly smaller Nagatomi shamisen were difficult to handle in the upper grades of elementary school students.

  On the other hand, a shamisen that uses strong and inexpensive synthetic leather as the skin to be stretched on the torso, or synthetic resin instead of wood that is used for the buttocks, is used as a teaching instrument for children. There is also the idea of giving. However, with such a shamisen, it is impossible to produce the original tone of the shamisen.

  In other words, when synthetic leather is used as the skin stretched on the trunk, unlike natural leather, there is no portion where sound is lost, resulting in a metallic sound. Furthermore, synthetic leather has the disadvantage of being extremely vulnerable to heat compared to natural leather.

  In addition, if synthetic resin is used instead of wood used for the kite, the thread slips when the thread is pressed with the left finger, making it difficult to produce the original sound of the shamisen.

  Furthermore, many of the conventional improved shamisen are focused on simply shortening, lightening, and reducing the length of the shamisen, and there are many shamisen that are not well balanced throughout the shamisen. There is also a problem that the balance is poor, so that extra power is applied when children play, and the correct posture cannot be maintained.

  If the shamisen with the above problems is used easily, the burden on the children will be heavy, and the true tone and charm of the shamisen will not be transmitted to the children, and the purpose of spreading the shamisen to young people will be achieved. I can't.

  The present invention has been made in view of the above-mentioned conventional problems, and can be easily handled by elementary school students, and is suitable as a teaching instrument for elementary school students without damaging the original tone of the shamisen. The purpose is to provide a shamisen that enables the shamisen, which is a musical instrument, to be reliably transmitted to future generations.

The shamisen for elementary school students of the present invention is composed of a first side wall, a second side wall, a third side wall, and a fourth side wall, and a bowl-shaped body portion that both sides penetrate,
The cross-sectional shape is connected to the first side wall of the trunk part, and the collar part has a substantially triangular shape,
The first side wall is opposite to the third side wall, the first side wall, the second side wall and the fourth side wall are adjacent;
The opening of the torso is covered and fixed with a cat or dog skin,
One end of each of the three threads is fixed to one end of the collar portion so that the tension is variable.
The other ends of the three yarns are tied to the roots provided on the third side wall,
A detachable piece is a shamisen formed by fixing the three threads apart,
The length in the longitudinal direction of the torso is 6 / 5th of the length in the longitudinal direction of the torso shamisen torso,
The thickness of the buttocks is zero to 2 mm thinner than the quarter quarter of the thickness on the fine scale.
The buttocks are formed of one kind of wood selected from the group consisting of safflower, quince, or rosewood;
The collar portion is composed of an upper collar, a middle collar, and a lower collar,
And the upper collar, the middle collar, and the lower collar are detachably connected to each other,
A lower arm passes through the first side wall and the third side wall of the body part and is fitted to the body part,
The length of the upper bowl is shorter than the length of the upper bowl of the Nagatomi Shamisen by a curved scale,
The shamisen is formed so that the center of gravity of the shamisen extends over the lower collar.

  Moreover, it is preferable that the shamisen for the elementary school grader of this invention is formed with the said buttocks by sakai.

  Moreover, it is preferable that the shamisen for the elementary school graders of this invention is formed with the said buttocks by Karin.

  Moreover, in the shamisen for elementary school students of the present invention, the buttocks are preferably formed of rosewood.

  According to the shamisen for elementary school students of the present invention, the length of the cocoon is 2 inches shorter than the shaku 2 length, which is the length of the long shamisen, so even if it is an elementary school student whose arm length is shorter than an adult, It is easy to have a shamisen and play. In other words, when the size is shortened, the primary schoolchild can easily reach the top of the bowl when holding the shamisen, and the distance between positions is narrowed. You can start. Moreover, since the cross-sectional shape of the bag is substantially triangular, there is an advantage that it is easy for a child to hold and play. In addition, the thickness of the cocoon (hereinafter referred to as “listed”) is narrower than that of thin cocoons, so even the elementary school students who could not hold the thread without moving the wrist on the Nagatomi shamisen are only one finger long. You will be able to hold the third thread. Moreover, since the trunk | drum is smaller than the Nagatomi shamisen, there exists an advantage that the weight concerning a knee is reduced. Moreover, since the center of gravity of the shamisen is in the lower arm, extra power is not required, so it can be played easily. In addition, because the buttocks are made of red wood, quince or rosewood, and the skin is also made of cat or dog skin, the original timbre of the shamisen can be produced even if the size of the shamisen is reduced. Also, since the cocoon can be separated into three parts, upper cocoon, middle cocoon, and lower cocoon, it will cause one of the neighboring cocoons when the tree warps (make the angle between the axes of the adjacent cocoons) Since it can be done, less shaving is required and the shamisen can be made longer. In addition, it is convenient to carry and can be partially repaired. Furthermore, by using the shamisen of the present invention as a teaching instrument, it is possible to disseminate the traditional Japanese musical instrument, the shamisen, to young people.

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

  FIG. 1 is a perspective view for explaining an elementary school grader shamisen according to the present invention, FIG. 2A is a plan view of an elementary school grader shamisen according to the present invention, and FIG. It is a figure which shows an example of the connection part of the shamisen for elementary school lower grades of FIG. 2, FIG.2 (c) is a figure for demonstrating the trunk | drum used for the shamisen for elementary school upper grades of this invention, FIG. It is a side view of the shamisen for elementary school upper grades of the idea. 4 (a) is a cross-sectional view of the kite of the present invention, FIG. 4 (b) is a cross-sectional view of the thin kite, and FIGS. 5 (a) to 5 (c) are drawings of the shamisen for elementary school students of the upper grades of the present invention. It is a figure for demonstrating the connection part of a bag.

  FIG. 1 is a perspective view for explaining the shamisen for elementary school students of the present invention. The shamisen 1 of the present invention is composed of a heel part 2 and a trunk part 3. The flange portion 2 is fitted to the trunk portion 3 so as to penetrate the side wall of the trunk portion 3. The heel part 2 is formed by safflower, quince or rosewood. Beni-ki is a tree that can be harvested in the South Indian region, and is characterized by its beautiful striped pattern. In addition, sakai is most suitable as a shamisen cocoon because it can transmit the vibration of the yarn to the body without fail because it is harder and less strained than other wood. Karin is produced mainly in Southeast Asia and is inexpensive, so it is used exclusively for practice. Rosewood is mainly produced in Indonesia and hard, so it is suitable as a shamisen candy.

  At the front end of the collar portion 2, thread windings R1 to R3 for fixing the threads Th1 to Th3 in a variable tension are provided. The yarns Th1 to Th3 are called the first yarn Th1, the second yarn Th2, and the third yarn Th3 in order of increasing thickness, and are stretched almost in parallel. One thread Th1, second thread Th2, and third thread Th3 are wound around one thread winding R1, second thread winding R2, and third thread winding R3, respectively, and the other ends of the threads Th1 to 3 are tied to the root 5 And fixed. When the thread windings R1 to R3 are respectively rotated clockwise, the thread is wound up, and when rotated counterclockwise, the thread is loosened. As the yarns Th1 to Th3, silk twisted yarns are used, which are rich in stretchability and are less likely to generate frictional heat, so that children are less likely to be injured. Since the thinnest thread, Th3, is easy to break, nylon may be used for practice.

  The trunk | drum 3 consists of the 1st side wall 31, the 2nd side wall 32, the 3rd side wall 33, and the 4th side wall 34, as shown in FIG.2 (c). Karinashi is used for the trunk | drum 3 on the reason that the annual ring which goes outside is beautiful and the weight is just right for the shamisen, and the first to fourth side walls are glued together. The inner surface of the trunk 3 can be carved into a wavy groove called Ayasugi to enhance the acoustic effect.

  A skin 4 is coated on the opening of the wood of the body 3. For the epidermis 4, cat skin or dog skin is used. If synthetic leather is used, unlike natural leather, there is no portion through which sound is lost, so it becomes a metallic sound and is also not susceptible to heat, which is not preferable.

  A piece 6 is detachably provided between the skin 4 and the threads Th1 to 3 in order to separate the skin 4 and the threads Th1 to 3 during performance. The piece 6 is also used to transmit the vibration of the yarn to the skin. By the vibration transmitted to the skin 4 through the piece 6, the trunk portion 3 serves as a resonance box and can produce a loud sound.

  A trunk 7 that is a boat-shaped cover is hung on the trunk 3. The trunk 7 is for placing the right arm.

  2 (a) is a plan view of the elementary school shamisen of the present invention, and FIG. 2 (b) is a diagram showing an example of a connecting portion of the elementary school shamisen of the present invention, FIG. 2 (c). These are the figures for demonstrating the trunk | drum used for the shamisen for the elementary school upper grades of this invention.

  As shown in FIG. 2A, the collar part 2 is composed of an upper collar 21, a middle collar 22, and a lower collar 23. The upper collar 21, the middle collar 22, and the lower collar 23 are detachably connected to each other.

  As shown in FIG. 2 (b), the connecting portion is provided with a dovetail 9 and a dovetail groove 10 in the heel, a recess 11a is provided in the joint portion of one heel, and a convex portion in the joint portion of the other heel. It is preferable that the ant tenon 9 and the dovetail groove 10 are joined to each other, and the concave portion and the convex portion are further joined.

  The upper collar 21 also includes Tenjin, which is the tip of the shamisen 1 where the spools R1 to R3 and the like are provided. The shamisen for the upper grades of the elementary school of the present invention is made by the Kamibe 21 shorter than the total length of the long shamisen (about 100cm) by 2 times shorter than the long shamisen. 2 It becomes easy to hold down the thread from the upper collar 21 to the lower collar 23. However, shortening the bowl will change the overall balance of the shamisen. In order to correct this point and make it easier to hold, the child's shamisen of the present invention forms a shamisen so that the center of gravity comes to the lower arm 23. Since the weight and the like vary depending on the wood to be used, in order to make the lower barn 23 have a center of gravity, there is a disadvantage that the center of gravity will inevitably deviate from the ideal location in mass-produced products, making it difficult to play the shamisen.

  The shamisen for elementary school students of the present invention can be separated into an upper ridge 21, a middle ridge 22, and a lower ridge 23 because the heel part 2 can be separated into an adjacent ridge when the tree warps (adjacent The angle between the axes of the ridges can be set), so that less shaving is required and the shamisen can be made longer. In addition, it is convenient to carry and can be partially repaired.

  The buttock listing W (distance between AB shown in FIGS. 4 (a) and 4 (b)) is narrower and smaller by two than the quarters of Hosogane. It becomes easy to hold all the threads Th1 to Th3 only by the movement of the finger.

  FIG.2 (c) is a figure for demonstrating the trunk | drum used for the shamisen for the elementary school grades of this invention, and the trunk | drum 3 is formed with quince. The trunk | drum 3 is comprised from the board of 4 sheets, the 1st side wall 31-the 4th side wall 34. FIG. The first side wall is connected through the lower collar 23. The end of the lower collar 23 passes through the fourth side wall, and the root 5 is bound to the core 8 that is the end. The length of the trunk portion 3 of the present invention in the longitudinal direction L1 is a six-fifth dimension which is the length in the longitudinal direction of the trunk portion of the Nagatomi shamisen, and the length in the short-side direction L2 is a five-fifth dimension. . The longitudinal direction 11 and the lateral direction 12 which are the dimensions of the inner side of the trunk are the same as the long shamisen.

  FIG. 3 is a side view of the shamisen for elementary school students of the present invention. The shamisen for children of the present invention has the same height D as the Nagatomi shamisen.

  FIG. 4A is a cross-sectional view of the scissors according to the present invention, and FIG. 4B is a cross-sectional view of the thin scissors. The cocoon of the present invention has a listing W of 棹 that is zero or two halves thinner than the quarter quarter 太, which is the thickness of a thin sword. Compare Fig. 4 (a) and Fig. 4 (b). The remarkable difference is that the cross-sectional shape of the long hook is substantially U-shaped, whereas the cross-sectional shape of the hook of the present invention is substantially triangular as shown in FIG. It has a shape and has an advantage that when a child grasps it, it can be surely grasped and the finger can be carried smoothly.

  5 (a) to 5 (d) are diagrams for explaining a connecting portion of a shamisen for elementary school students of the present invention. The upper collar 21, the middle collar 22, and the lower collar 23 are detachably connected to each other. In FIG. 2 (b), an example of the shape of the joint is shown. As shown in FIG. 5 (a), the joint part, which is a connection part, has an ant tenon 9 that is a protruding part, and the ant tenon 9 The dovetail groove 10 which is a recess to be joined is formed in each other's ridge, and as shown in FIG. 5 (b), the ant tenon 9 of the other ridge is inserted into the ant groove 10 of the other ridge. Can also be connected. A member called a mortise can be embedded in the recess to further increase the degree of adhesion. Further, in the joint portion, in addition to the joint portions as shown in FIGS. 2B and 5A, as shown in FIGS. 5C to 5D, the joint portion is provided with a concave portion 11a and a convex portion 11b. By providing, it can also connect more firmly.

It is a perspective view for demonstrating the shamisen for elementary school students of the present invention. It is a top view of the shamisen for elementary school students of the present invention. It is a figure which shows an example of the connection part of the shamisen for the elementary school upper grades of this invention. It is a figure for demonstrating the trunk | drum used for the shamisen for the elementary school upper grades of this invention. It is a side view of the shamisen for elementary school students of the present invention. (A) is sectional drawing of the scissors of this invention, (b) is sectional drawing of a thin scissors. (A)-(d) is a figure for demonstrating the connection part of the saddle of the shamisen for elementary school students of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shamisen 2 Gutter part 21 Upper girder 22 Middle girder 23 Lower girder 3 Body part 31 1st side wall 32 2nd side wall 33 3rd side wall 34 4th side wall 4 Epidermis 5 Root 6 Top 7 Trunk 8 Core tip 9 Dovetail 10 Dovetail 11a Recess 11b Protrusion D Height L1, L2 Body length l1, l2 Body length R1, R2, R3 Thread winding Th1, Th2, Th3 Thread W Thickness (listed)

Claims (4)

It is composed of a first side wall, a second side wall, a third side wall, and a fourth side wall, and has a bowl-shaped body portion through which both sides pass,
The cross-sectional shape is connected to the first side wall of the trunk part, and the collar part has a substantially triangular shape,
The first side wall is opposite to the third side wall, the first side wall, the second side wall and the fourth side wall are adjacent;
The opening of the torso is covered and fixed with a cat or dog skin,
One end of each of the three threads is fixed to one end of the collar portion so that the tension is variable.
The other ends of the three yarns are tied to the roots provided on the third side wall,
A detachable piece is a shamisen formed by fixing the three threads apart,
The length in the longitudinal direction of the torso is 6 / 5th of the length in the longitudinal direction of the torso shamisen torso,
The thickness of the buttocks is zero to 2 mm thinner than the quarter quarter of the thickness on the fine scale.
The buttocks are formed of one kind of wood selected from the group consisting of safflower, quince, or rosewood;
The collar portion is composed of an upper collar, a middle collar, and a lower collar,
And the upper collar, the middle collar, and the lower collar are detachably connected to each other,
A lower arm passes through the first side wall and the third side wall of the body part and is fitted to the body part,
The length of the upper bowl is shorter than the length of the upper bowl of the Nagatomi Shamisen by a curved scale,
A shamisen for the upper grades of elementary school, formed so that the center of gravity of the shamisen runs over the lower hip. The shamisen for elementary school students according to claim 1, wherein the buttocks are formed of safflower. The shamisen for elementary school students according to claim 1, wherein the buttocks are made of quince. The shamisen for the upper grades of an elementary school of Claim 1 in which the said buttock part is formed with rose sand.

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