JPH07295558A - Main body structure of stringed instrument - Google Patents

Abstract

PURPOSE:To obtain good acoustic characteristics by installing opposite strings opposite strings for playing which are fixed to the surface diaphragm of the stringed instrument. CONSTITUTION:The stringed instrument 20 is provided with the strings 28 opposite the strings 25 for playing. The strings 28 generate tension 2A by a peg 23. The tension 2A cancels tension 29 generated by the strings 25 for playing at a bridge 24, and bending moment on the top sound board which is generated by a conventional stringed instrument can be prevented from being generated. Namely, the strings 28 opposing the tension of the playing strings 25 of the stringed instrument 20 are provided to reduce the load on the top soundboard, and extra strength which is provided for the tension of the playing strings 25 is eliminated to make the top soundboard vibrate more easily. Further, the strings 28 opposing the tension of the playing strings 25 are used for the stringed instrument to lower the rigidity of the top soundboard, and the vibration characteristics are improved. Further, the strings 28 are tuned corresponding to a music tone and harmonic overtone by the resonance of the strings 28 are generated more to improve the tone quality.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a main body structure of a stringed instrument, and more particularly to a mechanism for improving the acoustic characteristics of the stringed instrument without using an electric amplification mechanism.

[0002]

2. Description of the Related Art Conventionally, in a stringed instrument 10 that does not have an electric sound wave amplification mechanism, as a method of converting the vibration of the string into a sound wave, a saddle 16 is provided at the center of the surface vibration plate 11 and the string 15 is placed thereon. Bend and saddle 16 string 15 by friction force
Then, the vibration of the strings 15 is transmitted to the bridge 14 and the surface vibration plate 11 is vibrated to generate sound waves.

[0003]

This has the following drawbacks. In order to obtain good characteristics in a stringed instrument, it is necessary to improve the movement of the surface vibration plate 11. However, in the conventional structure, tension 17 is generated by the string 15 and the surface vibration plate 11 has a large force due to the tension 17 and A moment 18 is generated. In order to counteract these forces, the surface vibration plate 11 needs to have a large strength, and this large strength hinders the movement of the surface vibration plate 11 and adversely affects the acoustic characteristics.

[0004]

The problems to be solved by the present invention have been described above. Next, means for solving the problems will be described. In other words, by providing a string to counter the tension of the playing string of a stringed instrument, reducing the load on the surface diaphragm, and eliminating the extra strength provided for the tension of the playing string, the surface diaphragm is vibrated more. It is possible to make it easier.

[0005]

The problems and configurations to be solved by the present invention are as described above, and the embodiments of the present invention shown in the accompanying drawings will be described below. FIG. 1 is a drawing of a conventional stringed instrument, FIG. 2 is a drawing of a stringed instrument provided with a counter string, FIG. 3 is a drawing of an embodiment of a method of fixing a string to a surface diaphragm, and FIG. 4 is a drawing of another example of the embodiment. ,.

First, the structure of a conventional stringed instrument 10 will be described with reference to FIG. Vibration of playing string 15 is saddle 16
Is transmitted to the bridge 14 and converted into a sound wave by the surface vibration plate 11 . For vibrating the strings 15 are required tension 17, this tension 17 generates a bending moment 18 on the surface diaphragm 11, the bending moment 18 the surface diaphragm 11 in the left or the bridge 14 a permanent strain The structure causes a large amount of strength in this part as it causes lift.

Next, the embodiment shown in FIG. 2 will be described. Stringed instrument 2
At 0 , a string 28 is provided to oppose the playing string 25 . string
28 generates tension 2A by the bobbin 23 . With this tension 2A , the tension 29 generated by the playing string 25 is canceled on the bridge 24 , and it is possible to prevent the generation of the bending moment 18 on the surface diaphragm 11 which has occurred in the conventional stringed instrument 10 , and various problems occur. The point can be solved.

Next, a method of fixing the strings in the bridge portion will be described with reference to FIG. The normal vibrating string 32 and the surface vibration plate 3
As a method of fixing to 7 , the through hole is formed in the bridge 35 , the string end stopper 36 is fixed by the pin 31 , and the vibration of the string 32 is transmitted to the surface vibration plate 37 by the saddle 34 to generate a sound wave. METHOD The first one of the fixed method of combating strings separately fix the two strings by using exactly the same way as conventional method 3
A. The second is method 3B, which also uses a fixed pin.
As a third method, a method 3C in which a saddle is also used can be considered. The fourth method is 3D, which uses a single string.
Then, the string is passed through the holder 38 and fixed by the fixture 39 from above.

Next, the example of FIG. 4 will be described. This is Example 3B using one string described above. First, one string 43 is fixed to the end bridge 47, and tension 46 is applied by the bobbin 42.
Generate. Next, the string 43 is fixed to the bridge 48 by the fixing tool 39 and the tension 46 is fixed. Then spool
Tension 45 is generated by tuning the string by 42 . With such a procedure, it is possible to cancel the tensions with each other and generate the moment without producing a similar effect.

Next, the example of FIG. 5 will be described. In the stringed instrument structure shown in FIG. 2, the shaft 51 is provided in front of the spool 23 in order to eliminate resistance when the spool 23 of the opposing string 28 is adjusted.
A bobbin winding structure featuring a roller 52 on the top.

[0011]

The present invention has the following effects by being configured as described above. That is, by using a counterstring that counteracts the tension of the performance string in a stringed instrument, the rigidity of the surface diaphragm can be lowered, and the vibration characteristics can be further improved. In addition, by tuning the counter string according to the tone, more harmonics are generated due to the resonance of the counter string, and it is possible to improve the sound quality.

[Brief description of drawings]

FIG. 1 is a structural diagram of a conventional stringed instrument.

FIG. 2 is a structural diagram of a stringed musical instrument using a counter string.

FIG. 3 is a structural diagram of a method of fixing an opposing string.

FIG. 4 is another structural diagram of a stringed instrument using a counter string.

FIG. 5 is a structural diagram of a spool of a stringed instrument using a counter string.

[Explanation of symbols]

 25 playing string 26/27 saddle 24 bridge 23 bobbin 28 counter string 29.2A tension 51 shaft 52 roller

Claims (4)

[Claims]
1. 1. A stringed instrument structure characterized in that an opposing string is installed so as to oppose a playing string fixed to a surface vibration plate of the stringed instrument.
2. 2. The structure of the stringed instrument according to claim 1,
   A stringed instrument structure that can tune the opposing strings.
3. 3. The structure of the stringed instrument according to claim 1, wherein
   A stringed instrument structure that allows the strings to be fixed with a bridge instead of using opposing strings and allows one string to be opposed.
4. 4. The structure of the stringed instrument according to claim 1,
   A stringed instrument structure that allows a roller to be installed in front of the bobbin for opposing strings to reduce resistance during tuning.