JPH09146539A - Taisho lyre - Google Patents

Abstract

PROBLEM TO BE SOLVED: To generate an extensive sound with a clear timbre by molding each fret and the arm of each keyboard key laminating a different raw material such as carbon on ceramic. SOLUTION: The arm 6 of each keyboard key 5 which presses various strings 4 extended at proper intervals over respective frets 2 and a bridge 3 on the top surface of a Taisho lyre main body 1 are molded respectively by laminating different materials such as carbon on ceramic. When various strings 4 are pressed with the arm 5 of a keyboard key 5 at playing time, metal and metal do not come into contact with each other like before and the materials such as carbon auxiliarily suppress a slip, so the arm 6 of the keyboard key 5 is prevented from slipping and consequently the strings 4 can securely be pressed, thereby generating an extensive sound with a clear timbre.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a Taisho koto capable of producing a clear tone and a prolonged sound.

[0002]

2. Description of the Related Art Heretofore, this type of Taisho koto has a keyboard key arm for pressing various strings, which is stretched at appropriate intervals on the upper surface of each fret on the upper surface of the Taisho koto body, and is made of metal alone or metal. In addition, other materials such as carbon are bonded together and molded, and further, other materials such as carbon are bonded together with plastic and molded.

[0003]

However, in the case where the keyboard key arm is formed only of metal, the various strings that can be pressed during playing are also metal wires, so when pressing various strings during playing, this keyboard key arm is used. Couldn't press down on the strings with certainty, and couldn't produce a clear and extended sound. In addition, the keys of the keyboard keys are formed by laminating metal with other materials such as carbon, and the adhesion between the metal and other materials such as carbon is poor. Other materials such as peeled from the metal, or the above-mentioned keyboard key arm molded with only metal is the same, but the metal of the keyboard may rust and the keyboard key arm may move smoothly up and down. I couldn't move it. In addition, the keyboard key arm is made by adhering other materials such as carbon to plastic and molding it.
There was a problem that the strength of the plastic was weak and it was easily damaged when pressing various strings during performance.

Therefore, the present invention was created in view of the above-mentioned problems, and various strings can be surely held without the arm of the keyboard key slipping, and the tone can be extended with a clear tone. Providing a Taisho koto that is capable of producing a certain sound, enabling smooth movement of the keyboard key arm when pressing various strings during performance, and preventing damage to the keyboard key arm. It is a thing.

[0005]

The Taisho koto according to the present invention comprises:
The arms of each keyboard key for pressing various strings, which are stretched at appropriate intervals above the respective frets on the upper surface of the Taisho koto body, are formed by laminating ceramics with other materials such as carbon.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a Taisho koto capable of producing a clear tone and an extended sound will be described with reference to the drawings as an embodiment of the present invention.

As shown in FIGS. 1 to 3, the Taisho koto of the present invention is a keyboard key 5 for pressing various strings 4 stretched at appropriate intervals above the frets 2 and the bridge 3 on the upper surface of the Taisho koto body 1. The arm 6 is formed by laminating ceramics 7 with another material 8 such as carbon.

That is, the arms 6 of the respective keyboard keys 5 are mounted on the support plate 10 attached to the front surface of the lower surface of the top plate 9 in the slits 11 arranged at appropriate intervals in the left-right longitudinal direction. A latching claw 1 which supports an inner end of the arm 6 through a shaft pin 12 so as to be vertically movable and is provided at an inner end of each arm 6.
3 are elastically releasably hooked on the torsion coil springs 14 attached to the rear portion of the lower surface of the top plate 9.

During playing, each keyboard key 5 is pushed down with a finger to move the outer end side of the arm 6 downward with the shaft pin 12 as an axis against the elastic force of the torsion coil spring 14. , So that various strings 4 can be pressed,
Further, by releasing the finger from each keyboard key 5, the outer end side of the arm 6 is moved upward by the elastic force of the screw coil spring 14 about the shaft pin 12, and the arm 6 of each keyboard key 5 is moved to the original position. It is designed to return to the position.

[0010]

As described above, the Taisho koto of the present invention has the arms 6 of the keyboard keys 5 for pressing the various strings 4 stretched at appropriate intervals above the frets 2 on the upper surface of the Taisho koto body 1 and the bridge 3. Since the ceramics 7 and the other material 8 such as carbon are adhered to each other and molded, when the various strings 4 are pressed by the arms 6 of the keyboard key 5 during a performance, it is not a metal-to-metal contact as in the conventional case. In addition, since the other material 8 such as carbon plays a role of supporting the sliding assist, it is possible to prevent the arm 6 of the keyboard key 5 from sliding.
The various strings 4 can be securely pressed, and a clear tone and a stretched sound can be produced.

Moreover, since the arm 6 of each keyboard key 5 is formed by laminating the ceramics 7 with another material 8 such as carbon, the adhesion is good, so that the various strings 4 can be pressed when playing. At this time, it is possible to prevent the other material 8 such as carbon from peeling off from the ceramic 7, and since the arm of the keyboard key is not formed of metal as in the conventional case, rust occurs on the arm 6 of the keyboard key 5. In combination with the fact that this can be prevented, the arm 6 of the keyboard key 5 can be smoothly moved up and down when pressing the various strings 4 during performance.

Further, the arms 6 of each keyboard key 5 are formed by bonding the ceramics 7 and the other material 8 such as carbon to each other, so that the keyboard key arms are made of plastic, carbon or the like. Since the strength is much stronger than that of the material formed by laminating the materials, it is possible to prevent the arm 6 of the keyboard key 5 from being damaged when pressing the various strings 4 during playing.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a vertical sectional side view of a main part of FIG.

FIG. 3 is an enlarged cross-sectional view of an arm of the keyboard key shown in FIG.

[Explanation of symbols]

 1 Taisho Koto body 2 Frets 3 Pieces 4 Strings 5 Keyboard keys 6 Arms 7 Ceramics 8 Other materials such as carbon 9 Top plate 10 Support plate 11 Slit 12 Axis pin 13 Locking claw 14 Torsion coil spring

Claims (1)

[Claims] 1. An arm for each keyboard key that holds various strings stretched at appropriate intervals on each fret on the upper surface of the Taisho koto body and each piece is formed by bonding ceramics to another material such as carbon. Taisho koto which is characterized by.