JPH03287300A - Bow of stringed musical instrument such as violin by weight, gravity center, and tensile strength adjustment system - Google Patents

Abstract

PURPOSE:To realize the best bow for performance without depending upon the water quality of a material by joining a rod of a hollow composite material with the tip and grip part of the bow and constituting the main body of the bow. CONSTITUTION:A hollow carbon fiber rod is used for a bow main body part 1, a string stopper 4 at the tip part is fitted to the bow tip part 2, and nylon is used for tension adjusting yarn 16. A grip part screw 5 is turned to adjust the tension strength of the bow. Further, a lead piece is used as a weight and gravity center adjusting weight. Consequently, the need to use a special rare material is eliminated and the bow has weight, a gravity center position, and bow tension strength which enable a player to play in the easiest state can be manufactured.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a bow for a bowed string instrument such as a violin.

[Conventional technology]

The rod-shaped main body of the stringed instrument, except for the hair of the bow and the handle where the hair is stretched, was a one-piece wooden structure. Therefore, the weight, center of gravity, and tension of the bow are determined by the type of wood used. To attach the bristles, as shown in Figure 7, a bundle of bristles is glued into the hole at the tip and a piece of wood is driven in to secure it. In the hand part, a bundle of hair was glued into the hole as shown in Figure 9, a metal shaft was fitted, and a wedge was inserted to secure it in place. Hair wear and tear and replacement were carried out by experts. The material used for bows was Lunambuco or Masaranlouva wood from South America. References include ``Introduction to Musical Instruments'' by Kazuo Kanamitsu, published by Ongaku-no-Tomosha in 1978.

[Problem to be solved by the invention]

The weight, center of gravity, and tension of a bow are influenced by the properties of the wood that makes up the bow. The purpose of the present invention is to provide a bow that is optimal for playing, without relying on the wood material to provide these required properties, as materials of optimal quality have become rare these days.

[Means to solve the problem]

In order to solve the above problems, the bow of the present invention consists of a main body made of a hollow composite material, which reduces the weight and increases the tension of the bow by stretching strings in this hollow part and adjusting the tension. The weight and center of gravity can be adjusted by using a removable hair section, and by attaching adjustment weights to the holes, the most suitable performance for playing can be obtained.

[Effect]

By winding or loosening the screw on the handle,
You can adjust the tension of the bow. The weight of the entire bow and the position of the center of gravity in the length direction can be adjusted by loosening the mounting screws ■ and ■ of the hair fixing members ■ and ■ and attaching the weights ■ and ■ to the mounting holes.

[Example] An example will be explained with reference to the drawings. In Figure 1, the bow body uses a hollow carbon fiber rod, and in Figures 2 and 3, the thread stopper ■ at the tip of the bow is It is fastened to part (2), and the tension adjustment thread [phase] is made of nylon. Adjust the tension of the bow by turning the handle screw ■. Lead pieces are used for weight/center of gravity adjustment ways 1~. In the example of a violin bow, the standard total weight is 60g, the tip part is 3g, and the hand part is 16g.
g, hollow body part 29 g, hair part 3 g, whole car 155
The weight is 60g, with a 2g weight on the tip and a 3g weight on the proximal end.

〔Effect of the invention〕

Since the present invention has the structure as explained above, it has the following effects. There is no need to use special rare materials. It becomes possible to produce a bow with the weight, center of gravity position, and bow tension that are most convenient for players to play. In addition, the bristles can be replaced by preparing the set shown in Figure 6 and attaching and detaching the mounting screws ① and ②, so there is no need to rely on experts.

[Brief explanation of the drawing]

Figure 1 is an overall front view, Figure 2 is a sectional view of the tip, Figure 3 is a sectional view of the proximal part, Figure 4 is a side view of Figure 2, and Figure 5 is a side view of Figure 3. It is. Figure 6 is a sketch of the main part. 1 ・ 3 ・ 5 ・ 0 4 0 Tsudo male hand part tension adjustment screw 8・Mounting screw・Hand part fixing member・15・Weight light end tip thread stopper・Hand thread stopper tip fixing member・12・Mounting hole・thread

Claims (1)

[Claims] 1. A violin characterized in that a hollow composite material rod (1) is joined to a bow tip (2) and a bow proximal portion (3) to constitute the main body of the bow. The bow of an equal-bow string instrument. 2. Tension the thread (16) from the lower thread stopper (4) inside the tip of the rod (1) through the inside of the rod (1) to the handle, and adjust the tension of the thread at the handle to adjust the tension of the bow. A bow for stringed instruments such as violins that features adjustable strength. 3. Fixing members (9) and (10) on both ends of the hair bundle, respectively.
A bow for a violin or other bowed stringed instrument, characterized by having hairs arranged evenly and glued together, and fixed with screws to the mounting holes at the tip and hand of the bow. 4. Attachment holes (11) for hair fixing members (9) and (10)
A bow for a bowed string instrument such as a violin, which is characterized by attaching weights (14) and (15) to (12) to adjust the weight and center of gravity of the bow.