KR101480893B1 - scale-down model for Gayageum, which has string tuner - Google Patents

Abstract

[0001] The present invention relates to a gayage reduction model reduced to a ratio according to the body size of a musician, and more particularly to a gayage reduction model having a stringer for adjusting tension of a plurality of strings, A gayage reduction model body having a vertical portion constituting the base, a height portion constituting the base, and a fixing portion for fixing a plurality of strings to one side of the base, and a fastening hole for fastening the string, And a handle for rotating the worm gear, wherein the worm gear is disposed vertically to the side of the helical gear to engage with the helical gear to rotate the helical gear, And a plurality of tuning portions, A length of the vertical portion, a length of the height portion, and a length from the fixing portion to the string tightening portion according to a standard standard of the gayageum, Is reduced to a predetermined reduction ratio based on the body size of the player, thereby modeling the reduced standard against the standard size.

Description

A scale-down model for Gayageum, which has a string tuner,

The present invention relates to a gayage reduction model reduced to a ratio according to the body size according to the age of a player, and more particularly to a gayage reduction model having a stringer for adjusting tension of a plurality of strings.

As modern society has been rapidly sharing the culture of the world with the development of communication means and the Internet, the understanding of each country has increased and the cultural difference between countries has decreased. As a result, the cultural differences inherent in each ethnic group are gradually disappearing, and cultural and social diversity is accelerating more than ever. In this reality, each country will have to create a new culture by inheriting and developing its own traditional culture while breathing with the world in order to maximize its own interests.

In recent years, there has been a growing interest in Korean traditional music instruments used in Korean traditional music, which is one of our unique traditional cultures.

However, the current Korean traditional musical instruments are adapted to adult musicians, so that children can hear hip when they play Sanjo gayageum. Therefore, children who are less physically young than adults may have a lot of inconvenience to use, so it is necessary for children to use a music instrument of a comfortable size.

In addition, in the case of the Sanjo gayageum, there is a difficulty in coordinating the prefecture as well as the children, so that a structure capable of adjusting the prefecture more conveniently is required. Especially, the tuning of the gayageum is very demanding skill, and it is very difficult for the beginner because it is necessary to coordinate the move of the ange whenever playing the gayageum.

The object of the present invention is to provide a reduced scale model of a gayageum that includes a string pitcher modeling a reduced scale of a Korean traditional musical instrument in consideration of various body dimensions of a performer, There is.

Another object of the present invention is to provide a gayageum shrinking model having a string tuner such that the standard of the Sanjo gayageum having a plurality of strings such as Sanjo gayageum is generalized to a size suitable for a child's age and the tune player can easily tune There is.

According to an aspect of the present invention, there is provided a gayage reduction model including a base, a height portion constituting the base, a vertical portion constituting the base, And a helical gear rotatable to wind or unwind a string inserted into the fastening hole and having a fastening hole into which a string is inserted and fastened, And a plurality of torsion gears vertically arranged on the side of the helical gear in engagement with the gears, the torsion gears rotating the helical gears and the handles rotating the worm gears, , And the width of the horizontal At least one of a length of the portion, a length of the longitudinal portion, a length of the height portion, and a length from the fixing portion to the string tightening portion is reduced to a predetermined reduction ratio based on the body size of the performance, .

Advantageously, the slewing rate may further comprise a plurality of modular housings in which the plurality of tune parts are individually mounted.

More preferably, the modular housing includes a lower base having a rotation support for supporting a rotation axis of the helical gear, a slit hole into which a string to be inserted into the fastening hole is input and output, and a lower base for coupling the handle to the worm gear And a cover having a through hole.

Preferably, the tethering unit may further include an integral housing in which the plurality of tune parts are integrally mounted.

Preferably, the worm gear may include a fastening groove having a polygonal cross section for fastening with the handle.

More preferably, the handle may include a fastening protrusion that is inserted into the fastening groove.

Preferably, the handle is formed in a circular cross-sectional shape, and the handle may include a plurality of recessed finger holders on the outer periphery of the circular handle.

More preferably, the finger grip portion may have three concave shapes for gripping with three fingers.

Preferably, the reduction ratio is determined by measuring the dimensions of a particular player's portion of a plurality of performers playing the gayageum, and determining a first age group and a gayageum based on the measured dimensions of the body portion, Calculating a mean body size of the first age group and an average body size of the second age group using the measured body part dimensions, and comparing the average body size of the second age group with the first age group A first dynamic range in which the upper body of the first musical performance moves to the maximum when the first musical instrument having an average body size of the first musical instrument is played by the gayageum and a second musical instrument having an average body dimension of the second age group, The second dynamic range in which the upper body of the second musical instrument moves maximum is calculated, and when the ratio of the first dynamic range to the second dynamic range is set to an upper limit Can be set by the reduction ratio.

More preferably, the dimensions of the particular body part may include a shoulder height in a sitting position of the plurality of players, a straight length of the hand, and an arm length excluding the hand.

More preferably, the first dynamic range includes a first angle at which the upper body of the first performance tilts to the maximum when the first performance plays the gayage, and the second dynamic range includes the second performance May include a second angle at which the upper body of the second performance is tilted to the maximum when playing the gayageum.

More preferably, the value of the first dynamic range is greater than the value of the second dynamic range, and the ratio may be a value less than one.

More preferably, the reduction standard can be modeled in proportion to the reduction ratio based on the standard specification.

According to the present invention, a reduced model of a gayageum considering a variety of body dimensions of a user is modeled to complete a reduced model. Thus, a player of a small body can play gayageum more comfortably, It makes it more convenient.

In addition, it is also possible to provide a reduction model in which the size of the gayageum is reduced to a size suitable for a child's age, and a concave-shaped finger grip to easily manipulate the handle for the current adjustment rate. Provide convenience.

As a result, according to the present invention, the inconvenience of the gayageum according to the size (size) and the inconvenience of the current rate are solved. In particular,

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing a standard of a conventional Sanjo gayageum; FIG.
FIG. 2 is a side view showing a standard of a conventional Sanjo gayageum; FIG.
3 is a rear view showing a standard of a conventional Sanjo gayageum;
FIG. 4 is a comparison between a reduced model of Sanjo Gayageum modeled according to the present invention and a standard model according to the standard of Sanzo Gayageum;
5 to 7 are views showing an example of body size measurement applied to select a reduced model of Sanjo gayageum according to an embodiment of the present invention.
8 and 9 is the view showing the difference between the maximum dynamic range (θ ₁₎ and children playing, the maximum dynamic range (θ ₂₎ of the adult playing in accordance with an embodiment of the invention;
10 is a view for explaining the principle of reducing Sanjo gayageum according to the present invention;
11 is a perspective view showing the entire structure of a string fastener according to an embodiment of the present invention;
12 is a perspective view showing an internal structure of a string fastener according to the present invention;
13 is a perspective view of a helical gear of a string fastener according to the present invention;
FIG. 14 is a perspective view showing a worm gear and a handle of a string fastener according to the present invention; FIG.
15 is a perspective view illustrating the structure of a string fastener according to another embodiment of the present invention;
16 is a perspective view illustrating a structure of a string fastener according to another embodiment of the present invention; And
Fig. 17 is a side view showing a shape in which a string fastener of the present invention is mounted on Sanjo gayageum; Fig.

Other objects, features and advantages of the present invention will become apparent from the detailed description of the embodiments with reference to the accompanying drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a configuration and an operation of an embodiment of the present invention will be described with reference to the accompanying drawings, and the configuration and operation of the present invention shown in and described by the drawings will be described as at least one embodiment, The technical idea of the present invention and its essential structure and action are not limited.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

The present invention can be applied to a variety of string instruments in which the dynamic range according to the player's posture deformation at the time of playing is remarkably different according to ages, although Sanjo gayageum is described as an example.

FIG. 1 is a front view showing a standard of a conventional Sanjo Gayageum, FIG. 2 is a side view showing a standard of a conventional Sanjo Gayageum, and FIG. 3 is a rear view of a conventional Sanzo Gayageum.

The Sanjo gayageum shown in Figs. 1 to 3 represents a standard model according to a standard specification, and the present invention models a reduction specification based on the standard model standard shown in Figs.

In an embodiment of the present invention, a final reduction model is selected and manufactured by reducing at least one of a horizontal length, a vertical length and a height of a standard standard at a predetermined ratio.

The standard size of the Sanjo gayageum shown in Figs. 1 to 3 is 1465 mm in width, 190 mm in length, and 65 mm in height.

FIG. 4 is a graph comparing the reduced model of the Sanjo Gayageum modeled according to the present invention and the standard model of the Sanjo Gayageum according to the present invention. In the present invention, At least one of the vertical length and the height may be reduced in proportion to the ratio of the first dynamic range and the second dynamic range, which will be described later.

The reduced model according to the present invention is applied to a Sanjo gayageum body including a transverse portion constituting the base, a longitudinal portion constituting the base, a height portion constituting the base, and a fixing portion for fixing the string to one side of the base And a chord adjuster for adjusting the tensile force of the string on the other side of the base in the reduced model.

As described above, the horizontal portion, the vertical portion, the height portion, and the fixing portion are configured to apply to Sanjo Gayageum. The horizontal portion is a relatively long direction when defining the base length of Sanjo Gayageum, and the vertical portion is divided into relatively short portions . On the other hand, the structures listed above may be changed depending on the type of strings.

The shrinkage model according to the present invention is characterized in that at least one of the length of the transverse portion, the length of the longitudinal portion, the length of the height portion, and the length from the fixing portion to the string tightening portion according to the standard standard of Sanjo Gayageum, It is preferable to reduce the size to a predetermined reduction ratio to model the reduction standard to the standard size.

Hereinafter, a process of modeling a reduced model according to the present invention will be described.

5 to 7 are views showing an example of measurement of a body size applied to select a reduced model of Sanjo gayageum according to an embodiment of the present invention.

As shown in Figs. 5-7, measurements of specific body parts of many performers playing Sanjo gayageum are measured.

For example, the shrinkage model of Sanjo gayageum includes the shoulder height, the straight length of the hand, and the arm length excluding the hand, in the sitting position of a large number of musicians.

Many performers are from 5 to 30 years old.

FIG. 5 shows a process of measuring a shoulder height in a sitting position of each player, FIG. 6 shows a process of measuring a straight line length of a hand, and FIG. 6 shows a process of measuring an arm length except a hand .

5 to 7 illustrate the measurement of a part requiring movement in the sanjo (performance) of the Sanjo gayageum, and the measurement target part of the player's body can be variously modified depending on the type of string instrument.

Referring to FIG. 5, the measurement of the shoulder height in a sitting state measures the vertical distance from the side where the player sits to the shoulder point, and the sitting state takes an anthropometric sitting position. The measurement is made by placing the vertical person on the right side of the subject, standing behind the subject (performer), holding the vertical object with one hand and gently holding the horizontal end of the vertical object with the other hand to touch the shoulder point. Measure the vertical distance from the sitting face to the shoulder point in that state.

Referring to FIG. 6, the straight line distance measurement of the hand measures the straight line length from the fold line to the hand end point at the wrist point level when the performer is seated. The measurement method is to spread the hand on the table and measure the distance from the wrist line to the hand end point.

Referring to FIG. 7, the arm length measurement is to measure the length from the shoulder point to the inner point of the wrist through the knee joint, and is measured in an anthropometric standing posture. The measuring method is to measure the length from the shoulder point to the point on the upper part of the shoulder to the inner point of the wrist by changing hands after standing on the right side of the subject.

Thereafter, the first age group to which the Sanjo Gayageum standard is applied and the second age group to which the Sanjo Gayageum shrinkage standard is to be applied are classified based on the measured body part dimensions. That is, the target to use the reduced size Sanjo gayageum is selected.

In the present invention, as described above, five percent to 30 year-olds are used. As shown in Tables 1 to 3, the percentiles provided based on measurements of different body parts for each age group are used.

Classification Number of measurements Average Standard Deviation Minimum value First quartile Quintile 25th percentile 50th percentile 75th percentile 95th percentile Tenth decile Maximum value 5 years 523 376.92 21.82 285 320 344 362 377 390 412 429 464 6 years 229 394.75 22.85 299 335 360 379.5 394.5 408.5 431 449.5 486 7 years old 506 409.49 23 340 355 372.5 393.5 408.5 423.5 447.5 465 487 8 years old 561 426.35 24.77 359 369.5 385.5 409.5 425.5 443 467.5 487 497 9 years 474 445.96 25.65 384 387 405.5 426.5 444.5 462.5 488.5 506.5 544 10 years old 528 464.91 29.36 350 400.5 420.5 445.5 463.5 480.5 516 537 565 11 years old 519 486.1 29.4 401 421 438 465.5 483.5 505.5 536 555 592 12 years old 528 506.67 29.91 430 436.5 459.5 486 504.5 525.5 552.5 582 598 20 to 30 years 1428 580.42 30.35 501 517 531.5 557.5 579.5 600.5 631 649.5 677

Number of measurements Average Standard Deviation Minimum value First quartile Quintile 25th percentile 50th percentile 75th percentile 95th percentile Tenth decile Maximum value 5 years 523 125.34 7.49 107 109 112.5 120.5 124.5 129.5 136.5 142 178 6 years 499 131.27 7.27 112 114.5 118.5 125.5 130.5 135.5 142 150 163 7 years old 504 138.49 7.68 110 119 125.5 132.5 137.5 143.5 151.5 155.5 160 8 years old 561 144.45 7.82 120 129.5 131.5 138.5 143.5 148.5 157.5 164 174 9 years 475 150.12 7.71 130 133.5 137.5 144.5 149.5 154.5 162.5 168.5 185 10 years old 527 157.53 9.54 133 136.5 141.5 150.5 156.5 163.5 174.5 177.5 188 11 years old 518 164.18 9.4 139 142 149.5 156.5 163.5 170.5 178.5 187.5 195 12 years old 526 169.89 9.89 138 145.5 152.5 163.5 169.5 175.5 185.5 195 204 20 to 30 years 1428 180.41 9.77 150 158.5 164.5 172.5 180.5 186.5 196.5 201 211

Number of measurements Average Standard Deviation Minimum value First quartile Quintile 25th percentile 50th percentile 75th percentile 95th percentile Tenth decile Maximum value 5 years 523 0.00 0.00 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6 years 228 391.85 21.63 330 336 357 377.5 392.5 403.5 426 441 463 7 years old 506 409.96 22.23 338 350 372.5 395.5 409.5 423.5 444.5 463.5 480 8 years old 561 430.85 24.21 365 376.5 393.5 412 429.5 446 472 492 520 9 years 475 451.79 24.46 384 395 410.5 435.5 451.5 467.5 491.5 511.5 558 10 years old 527 475.72 29.06 352 409.5 429.5 454.5 474.5 492.5 526 538 570 11 years old 519 499.32 28.3 406 434.5 453.5 479.5 499.5 518.5 543 568 595 12 years old 529 520.39 30.76 432 449 469 499.5 519.5 539.5 569 589.5 607 20 to 30 years 1429 555.98 34.82 465 487.5 501 528 553.5 581.5 614.5 631 644

Then, the body size of each age group, that is, the degree of similarity between the torso and the arm length, is calculated. The following Table 4 shows the similarity of body dimensions for 5 to 30 year olds. It is the body size overlap rate for each age group.

5 years 6 years 7 years old 8 years old 9 years 10 years old 11 years old 12 years old Average 20 to 30 years 5 years 100% 88% 73% 58% 40% 39% 21% 0% 66% 0% 6 years 98% 100% 86% 74% 55% 52% 34% 10% 78% 8% 7 years old 77% 81% 100% 91% 70% 66% 48% 22% 81% 16% 8 years old 49% 56% 74% 100% 78% 73% 56% 28% 72% 21% 9 years 38% 46% 63% 87% 100% 91% 77% 46% 71% 33% 10 years old 41% 49% 66% 90% 100% 100% 83% 51% 74% 37% 11 years old 21% 31% 47% 67% 82% 81% 100% 66% 55% 47% 12 years old 0% 10% 24% 39% 57% 58% 77% 100% 31% 70% 20 to 30 years 0% 12% 27% 42% 60% 61% 79% 100% 34% 100%

As shown in Table 4, the degree of similarity between the 20th-30th and the 20th-30th is high because the overlapping ratio of the body size between the ages of 20 and 30 is 47% and the age of 12 is between 20 and 30 years. However, young people aged 5 ~ 10 years and 20 ~ 30 years have a relatively low similarity of body size. Therefore, in the case of the above-mentioned Table 4, the performers from 11 to 30 years belong to the first age group, and the performers from 5 to 10 years belong to the second age group.

After classifying the age group groups to use Sanjo gayageum of different specifications in the same manner, the average body size of the first age group and the average body size of the second age group are calculated using the measured body part dimensions do.

A first performance value having an average body size of the first age group and a second performance value having an average body size of the second age group are selected on the basis of the average body size of each of the calculated groups. The first performer is an adult performer and the second performer is a child performer.

In the present invention, when the first musical instrument plays the Sanjo gayageum, the first dynamic range in which the body of the first musical instrument moves maximum is calculated, and when the second musical instrument plays the Sanjo gayageum, Lt; RTI ID = 0.0 > maximum < / RTI >

For example, the first dynamic range in which the upper body moves maximum in the body of the first musical performance and the second dynamic range in which the upper body moves the maximum in the body of the second musical performance are calculated.

In another example, a process of calculating the first dynamic range and the second dynamic range will be described. First, when the first musical instrument plays the Sanjo gayageum, a first angle at which the upper body of the first musical instrument is tilted to the maximum (? ₁ ), and calculates a second angle? _{2 at} which the upper body of the second musical performance is tilted to the maximum when the second musical instrument plays the Sanjo gayageum. Here, the applied Sanjo Gayageum is a standard, the first dynamic range includes the calculated first angle, and the second dynamic range includes the calculated second angle.

8 and 9 are diagrams showing the difference between the maximum dynamic range of an adult performer and the maximum dynamic range of a child player according to an embodiment of the present invention, may be the angle (θ _1, θ ₂₎ may be, when the distance reaching the upper body of the musician to be tilted up to belong to different groups (d _1, d _2).

Referring to Figs. 8 and 9, in the present invention, the ratio of the first dynamic range to the second dynamic range is calculated, and the ratio is defined as the reduction ratio. For example, the ratio of the first angle (? ₁ ) at which the upper body of the first performance is tilted to the maximum and the second angle (? ₂ ) at which the upper body of the second performance is tilted to the maximum is calculated. As another example, the ratio of the first distance d ₁ , which is reached when the upper body of the first musical performance reaches the maximum inclination, and the second distance d ₂ , which is reached when the upper body of the second musical performance reaches the maximum inclination, is calculated.

On the other hand, the value of the first dynamic range is greater than the value of the second dynamic range due to the difference in the body dimensions of the first and second performances, so that the ratio of the first dynamic range to the second dynamic range is 1 Or less.

Also, the dynamic range may be the degree of their waist bending when each performer plays the Sanjo gayageum.

When a second performer having a smaller body size than the first performance price plays the standard size gayageum, the dynamic range of the performance posture is relatively large, so that a moment applied in proportion to the dynamic range largely acts. This is the reason why we need to select a reduction model that is suitable for body size.

10 is a view for explaining the principle of reducing Sanjo gayageum according to the present invention.

As shown in FIG. 10, in the present invention, the reduction standard of the Sanjo Gayageum is calculated based on the ratio of the first dynamic range and the second dynamic range calculated above. That is, the reduction standard is calculated in proportion to the ratio of the first dynamic range to the second dynamic range based on the standard of Sanjo Gayageum.

The calculation of the reduction standard uses a similar non-computation scheme in which the ratio of the first dynamic range to the second dynamic range is determined by the ratio of the lengths of the three pairs of corresponding sides to the shapes of the two triangles, The proportional reduction standard is calculated by applying the similarity ratio.

The shrinkage specification is obtained by reducing at least one of a transverse length, a vertical length and a height corresponding to the standard of Sanjo Gayageum in proportion to the ratio of the first dynamic range to the second dynamic range.

Finally, a reduced model of Sanjo gayageum corresponding to the above-mentioned reduced size specification is selected.

In the present invention, the ratio of the first dynamic range and the second dynamic range calculated on the basis of the above-described various information is calculated to be 0.76, so that the reduction standard to the standard standard is determined as shown in Table 5 below.

Original Sanjo Gayageum Reduced Sanjo Gayageum horizontal 1465 1114.4 Vertical 190 144.5 Reduction ratio One 0.76

FIG. 11 is a perspective view showing the overall structure of a string fastener according to an embodiment of the present invention, FIG. 12 is a perspective view showing an internal structure of a string fastener according to the present invention, FIG. 13 is a perspective view showing a helical gear Fig. 14 is a perspective view showing a worm gear and a handle of a string fastener according to the present invention.

The mountainous gayageum shrinkage model according to the present invention comprises a transverse portion constituting the base, a longitudinal portion constituting the base, a height portion constituting the base, and a fixing portion for fixing a plurality of strings to one side of the base, And a hung adjuster mounted on the gayage shrinkage model main body. The tether adjusts the tensile strength of many strings on the other side of the base.

11 to 14, in the case where a plurality of strings for fixing the strings are provided in the form of a plurality of modules in each string, as shown in FIGS. 11 to 15 And an example in which a configuration for adjusting strings is provided integrally with respect to a plurality of strings (Fig. 16).

Figs. 11 to 15 show a configuration in which the plurality of tuning parts are respectively mounted inside the modular housing, and Fig. 16 shows a configuration example in which the plurality of tuning parts are integrally mounted in the integrated housing all together.

11 to 15, an example will be described in which the tilting portions are respectively mounted inside the modular housing.

The tether is provided with a plurality of tuning portions including a helical gear 40, a worm gear 12, and a handle.

Each tuning section is individually mounted inside the modular housing. Each modular housing is composed of a lower base 21 and a cover 20. The lower base 21 and the cover 20 are detachably coupled.

The lower base 21 includes a rotation support for supporting a rotation axis of the helical gear 40 and a slit hole 30 through which a string is inserted and fixed into a fastening hole 42 provided in the helical gear 40.

The cover 20 has a through hole (not shown) for coupling the handle 10 to the worm gear 12.

A helical gear 40 rotates to engage or release the string and the gear 41 is configured in a helical form. The helical gear 40 has a fastening hole 42 into which a string is inserted and is rotated to wind or release a string which is to be inserted into the fastening hole 42.

A worm gear 12 is disposed perpendicularly to the side of the helical gear 40 in engagement with the helical gear 40. The worm gear 12 is rotated in engagement with the helical gear 40 to provide a rotational driving force to the helical gear 40.

A handle 10 is coupled to the upper portion of the worm gear 12 to rotate the worm gear 12. [

The worm gear 12 has a fastening groove 13 having a polygonal cross section for coupling the handle 10 and the worm gear 12. The handle 10 corresponds to the fastening groove 13 And a fastening protrusion 14 to be inserted and fastened. The fastening protrusion 14 is formed in the same polygonal cross-section as the fastening groove 13 so as to be inserted into the fastening groove 13 and fixed. In Fig. 14, hexagonal fastening grooves 13 and fastening protrusions 14 are shown as an example, and they can be modified into various shapes such as triangular, tetragonal, and pentagonal.

The handle 10 is based on a circular cross-section. Particularly, the handle 10 is provided with a finger holding portion 11 having a plurality of concave shapes on the outer periphery of the circular shape, based on a shape of a circular cross section.

The finger grip 11 has three recesses for gripping with three fingers. The finger grip 11 has a configuration in which the thumb, the index finger and the stop finger are held.

FIG. 15 is a perspective view illustrating a structure of a tether according to another embodiment of the present invention. In the case where two modular housings having tune parts are disposed adjacent to each other, Is an example.

FIG. 16 is a perspective view illustrating a structure of a string fastener according to another embodiment of the present invention, wherein the modular housing independently constitutes a tune portion for adjusting string tension, whereas the integral housing has all the tune portions integrally formed As shown in Fig.

Accordingly, the cover 20a of the integral housing has a plurality of through holes (not shown) for coupling the handle 10 to the worm gear 12. The cover 20a is detachably coupled to the lower base 21a.

FIG. 17 is a side view showing a shape in which the present tuning rig according to the present invention is mounted on Sanjo gayageum. The tuning rig is mounted on the other side of the lower model.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

It is therefore to be understood that the embodiments of the invention described herein are to be considered in all respects as illustrative and not restrictive, and the scope of the invention is indicated by the appended claims rather than by the foregoing description, Should be interpreted as being included in.

Claims (13)

A gayage reduction model main body having a horizontal portion constituting the base, a vertical portion constituting the base, a height portion constituting the base, and a fixing portion fixing the plurality of strings at one side of the base; And
A helical gear rotatable to wind or unwind a string to be inserted into the fastening hole while having a fastening hole into which the string is inserted, a worm gear which is vertically disposed on the side of the helical gear to rotate the helical gear in engagement with the helical gear, And a plurality of torsion portions each of which is provided as a handle for rotating the worm gear, the torsion coil adjusting a tension of the plurality of strings at the other side of the base,
At least one of the length of the horizontal portion, the length of the vertical portion, the length of the height portion, and the length from the fixing portion to the string tightening portion according to the standard standard of Gayageum is reduced to a predetermined reduction ratio based on the performance body size A reduction standard to the standard standard is modeled,
Determining the reduction ratio means,
Measuring a size of each of the plurality of performers playing the gayageum according to a size of the body part and measuring a size of the first age group to which the standard specification of the gayageum is applied and a second age group to which the size specification of the gayageum is applied, Calculating a mean body size of the first age group and an average body size of the second age group using the measured body part dimensions, A first dynamic range in which the upper body of the first musical performance moves to the maximum when the player plays the gayageum and a second dynamic range in which the second musical instrument having the average body dimension of the second age group moves the gayageum 2 calculates a second dynamic range in which the upper body of the player moves at the maximum, sets a ratio of the first dynamic range and the second dynamic range to the reduction ratio,
Wherein the first dynamic range includes a first angle at which the upper body of the first performance tilts to a maximum when the first performance is playing the gayage, And a second angle at which the upper body of the second performance value is tilted to the maximum when the player performs the performance. The method according to claim 1,
The tethering unit may include:
Further comprising a plurality of modular housings within which the plurality of tune zones are individually mounted. ≪ Desc / Clms Page number 19 > 3. The method of claim 2,
The modular housing comprises:
A lower base having a rotation support for supporting a rotation axis of the helical gear, and a slit hole into which a string is inserted into the fastening hole,
And a cover having a through hole for coupling the handle to the worm gear. The method according to claim 1,
The tethering unit may include:
And a plurality of tune parts integrally mounted to the inside of the plurality of tuning parts. The method according to claim 1,
The worm gear
And a fastening groove having a polygonal cross-section for fastening the handle to the handle. 6. The method of claim 5,
The handle
And a fastening protrusion which is inserted and fastened to the fastening groove in correspondence with the fastening groove. The method according to claim 1,
The handle
And a finger grip portion having a plurality of concave shapes on the outer periphery of the circular shape, the cross section being based on a circular shape. The method of claim 7, wherein
The finger holding unit
Wherein the groove is formed by three concave shapes for gripping with three fingers. delete The method according to claim 1,
Wherein the dimensions of the specific body part include a shoulder height in a sitting state of the plurality of players, a straight length of the hand, and an arm length excluding the hand. delete The method according to claim 1,
Wherein the value of the first dynamic range is greater than the value of the second dynamic range, and the ratio is a value less than one. 13. The method of claim 12,
Wherein the reduced scale model is modeled in proportion to the reduction ratio based on the standard size.

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