JP3550324B2 - Mute for Taisho Koto - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a mute device for reducing the volume of a Taisho koto.
[0002]
2. Description of the Related Art
Taisho koto is a simplified musical instrument of koto, for example, a 5-string koto with a plurality of keys attached thereto. In this Taisho Koto, the vibration of the strings resonates inside the body, and is emitted as a loud sound from the sound hole.
For this reason, the volume output from Taisho Koto is large, but when practicing at home, it is desirable to reduce the volume. There are also cases where it is desired to perform at a low volume without resonating inside the torso.
[0003]
On the other hand, as a mute device for reducing the volume of a koto, a mute device for a koto disclosed in Japanese Utility Model Application Laid-Open No. 58-126494 is known.
It is conceivable that this mute for koto is also used for Taisho koto. However, since the structure of the koto and Taisho koto is different, this mute for koto cannot be used for Taisho koto as it is.
SUMMARY OF THE INVENTION It is an object of the present invention to provide a Taisho koto mute that can reduce the volume of Taisho koto.
[0004]
Means for Solving the Problems and Effects of the Invention
The invention according to claim 1 for solving the above-mentioned problem is characterized by a box-shaped body, a plurality of strings stretched in parallel above the body, and receiving these strings and applying vibration of the strings to the body. A mute device for reducing the volume of a Taisho koto equipped with a piece for transmitting and a plurality of keys operated to hold a predetermined position of a string, which is arranged between the body and the string. A base, an absorbing material provided on the upper surface of the base, and a body having a groove formed on the bottom surface of the base, wherein the thickness is greater than the depth of the groove, and is inserted into the groove. And a slide member that lifts the main body from the body to bring the absorbent into contact with the strings.
[0005]
According to the present invention, when the slide member is inserted between the trunk and the groove, the main body is lifted, so that the absorbent material comes into contact with the string. If the absorbing material is in contact with the string, the vibration of the string is not transmitted from the piece to the body because the vibration is absorbed even if the string is flipped. In other words, the vibration of the strings is not resonated by the torso, whereby the volume of Taisho Koto is reduced.
In addition, the Taisho Koto mute can be mounted on the Taisho Koto simply by inserting the slide member between the trunk and the groove. That is, the attachment can be easily performed.
[0006]
It is preferable to use felt or rubber as an absorber for absorbing string vibration. Further, other materials may be used as the absorbing material.
The mute for Taisho koto according to claim 2 is the mute for Taisho koto according to claim 1, wherein at least one of the tip of the slide member or the entrance of the groove, the slide member is easily inserted into the groove. , Characterized by being inclined.
[0007]
According to the present invention, the slide member is easily inserted between the groove and the body because of the inclination. This makes it possible to more easily attach the Taisho Koto mute to the Taisho Koto.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a plan view showing a schematic configuration of a Taisho koto using a Taisho koto mute according to an embodiment of the present invention.
The Taisho koto 2 is provided with a long, substantially box-shaped body 3. Above the trunk 3, for example, five strings 4 are stretched in parallel along the longitudinal direction. Of the five strings 4, the four strings on the far side are high strings 4A, and the remaining near sides are low strings 4B. Each string 4 is received by a piece 6, and the vibration of each string 4 is transmitted to the surface plate 3 </ b> A of the body 3 by the piece 6.
[0009]
A fingerboard 7 is arranged below the plurality of strings 4 on the surface plate 3A of the body 3. A plurality of frets 8 extending in a direction perpendicular to the direction in which the strings 4 extend are attached to the surface of the fingerboard 7. A top plate 9 that covers a part of the surface plate 3A is disposed above the surface plate 3A. A plurality of keys 10 are arranged on the front side of the top plate 9, and each key 10 is held by a key lever 11 that is mounted above the string 4 so as to be vertically movable. For example, the string 4 can be pressed against the fingerboard 7 between the frets 8 adjacent to the fingerboard 7 by the key lever 11 pressed down by the operation of the key 10. Therefore, when the key 10 is operated, the string 4 is pressed against the fingerboard 7 by the key lever 11 between the frets 8 adjacent to the fingerboard 7. Therefore, by operating a desired one of the plurality of keys 10, the vibration length of the string 4 is adjusted.
[0010]
A sound hole 12 is formed between the piece 6 and the fingerboard 7 on the surface plate 3A of the body 3. With this configuration, the vibration of the string 4 is transmitted to the surface plate 3A via the bridge 6, and the surface plate 3A vibrates. The air vibration behind the surface plate 3A generated by the vibration of the surface plate 3A resonates inside the body 3 and is emitted from the sound hole 12 as a loud sound. That is, in a state where the key 10 is operated, a portion of the string 4 facing the sound hole 12 is played by a pick or the like (not shown), so that a sound of an arbitrary pitch is emitted from the sound hole 12.
[0011]
When the Taisho Koto 2 is to be played with a reduced volume, such as when practicing at home, the Taisho Koto mute 1 according to this embodiment is used.
FIG. 2 is a perspective view showing a configuration of the mute 1 for Taisho koto according to the embodiment of the present invention.
The mute 1 for Taisho koto includes a main body 21 and a slide member 22. The main body 21 has a base 23. The base 23 includes a first surface 24 and a second surface 25 which is parallel to the first surface 24 and slightly lower than the first surface 24. On the first and second surfaces 24 and 25 of the base 23, a felt 26 as an absorbent is adhered. The felt 26 is for absorbing the vibration of the string 4.
[0012]
On the bottom surface 23a of the base 23, a groove 27 extending in one direction is formed. The groove 27 is open toward one end of the base 23 (the far right side in FIG. 2), and the opening serves as an entrance 27 a of the slide member 22.
The slide member 22 has a substantially rectangular parallelepiped shape, and an operation section 29 is provided at a rear end of the slide member 22. The width of the slide member 22 is set so that it can be inserted between the groove 27 of the main body 21 and the surface plate 3A.
[0013]
As shown in FIG. 3, the mute 1 for the Taisho koto is mounted between the sound hole 12 of the Taisho koto 2 and the piece 6, specifically, at a position adjacent to the piece 6. In this mounted state, the mute 1 for Taisho koto is sandwiched between the surface plate 3A and the string 4.
FIG. 4 is a cross-sectional view showing a state in which the mute for Taisho Koto is attached to Taisho Koto.
As shown in FIG. 4A, the four high strings 4A have the same height from the surface plate 3A, and the low strings 4B are located lower than the high strings 4A. The height of the upper surface of the felt 26 attached to the first surface 24 and the second surface 25 from the surface plate 3A is lower by a predetermined amount L than the heights of the four high strings 4A and the low strings 4B, respectively. It is set to be.
[0014]
Hereinafter, the attachment of the mute 1 for the Taisho koto to the Taisho koto 2 will be described.
First, referring to FIG. 1 and FIG. 4 (a), main body 21 is arranged between surface plate 3A and string 4 with one hand, for example, from the back side of string 4. In this arrangement, the groove 27 of the main body 21 extends in a direction substantially perpendicular to the direction in which the strings 4 extend. Until a gap for inserting the slide member 22 is formed between the surface plate 3A and the groove 27, the main body 21 is pulled up with one hand, and then operated with the operation unit 29 with the other hand, and FIG. As shown in (2), the slide member 22 is inserted between the groove 27 and the surface plate 3A. In this state, the mute 1 for Taisho koto is sandwiched between the surface plate 3A and the string 4, and the attachment is achieved. In this manner, simply mounting the main body 21 and inserting the slide member 22 between the groove 27 and the surface plate 3A allows easy mounting.
[0015]
As shown in FIG. 4A, the thickness LB of the slide member 22 is set to be larger than the depth LA of the groove 27, and this difference is made slightly larger than the predetermined amount L. Therefore, by inserting the slide member 22 between the groove 27 and the surface plate 3A, the main body 21 is lifted, and the felt 26 attached to the first surface 24 is brought into contact with each of the high strings 4A. The felt 26 attached to the second surface 25 is brought into contact with the low string 4B.
[0016]
If the felt 26 is in contact with the string 4, the vibration of the string 4 is not transmitted from the piece 6 to the body 3 even if the string 4 is flipped because the vibration is absorbed. In other words, the vibration of the string 4 is not resonated by the body 3, whereby the volume of the Taisho koto 2 is reduced.
In addition, as shown in FIG. 5, the distal end 22a of the slide member 22 may be provided with a downward slope 30 on the upper surface thereof toward the distal end. In this case, the slide member is easily inserted between the groove 27 and the surface plate 3A. This makes it possible to attach the mute 1 for Taisho koto to the Taisho koto 2 more easily.
[0017]
Further, as shown by a dashed line in FIG. 5, the inlet 27a of the groove 27 may be provided with a slope 30A at the bottom toward the insertion side of the slide member 22 at the bottom thereof.
Further, in the above-described embodiment, the case has been described in which the Taisho koto mute 1 is used as a five-string koto, but the Taisho koto mute according to the present invention has a six-string koto with two bass strings 4B. It can also be used for Taisho Koto. In this six-stringed koto, there is a case where one bass string is lower than the other bass string. In this case, a third surface corresponding to the one bass string is provided on the base 23, and the third surface is provided. The surface may be provided with an absorbing material for absorbing the vibration of the bass string 4B.
[0018]
The embodiments of the present invention have been described above. However, the present invention can be embodied in other forms, and various design changes can be made within the scope of the matters described in the claims.
[Brief description of the drawings]
FIG. 1 is a plan view showing a schematic configuration of a Taisho koto using a Taisho koto mute according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a configuration of a mute device for a Taisho koto according to an embodiment of the present invention.
FIG. 3 is a perspective view of a main part of the Taisho koto showing a mounted state of the mute device for the Taisho koto.
FIG. 4 is a cross-sectional view showing a state in which a mute for Taisho koto is attached to Taisho koto.
FIG. 5 is a cross-sectional view of a main part of a Taisho koto mute according to another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Mute for Taisho Koto 2 Taisho Koto 3 Body 4 String 6 Piece 10 Key 21 Main body 22 Slide member 22a Tip 23 Base 23a Bottom 26 Felt (absorbent)
27 Groove 27a Inlet 30, 30A Incline

Claims (2)

A box-shaped body, a plurality of strings stretched in parallel above the body, a piece for receiving these strings and transmitting the vibration of the strings to the body, and for pressing a predetermined position of the strings. A mute device for weakening the volume of a Taisho koto having a plurality of keys to be operated, a base disposed between the body and the strings, an absorbing material provided on an upper surface of the base, and A body with a groove formed in the bottom of the base,
A mute device for a Taisho koto, comprising: a slide member having a thickness greater than the depth of the groove, and a slide member that is inserted into the groove to lift the main body from the body to bring the absorbent into contact with the strings. A mute for Taisho koto according to claim 1,
At least one of the tip of the slide member and the entrance of the groove is inclined so that the slide member can be easily inserted into the groove.

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