JPH01202795A - Stringed instrument - Google Patents

Abstract

PURPOSE:To increase the strength of a neck and to suppress the generation of warp by burying a plate-like reinforcing member vertically against the surface of a finger plate in the length direction of the neck. CONSTITUTION:A reinforcing member 8 is constituted by forming, for instance, a titanium material to a plate shape, buried vertically against the surface of a finger plate 6 extending over almost the whole length in the length direction of a neck 3, and fixed into the neck 3 by an adhesive such as an epoxy resin, etc. Accordingly, even if tension of strings 4, 4... is applied to the neck 3 and a body 2, the plate-like reinforcing members 8, 8 which have been buried and fixed in the inside of the neck 3 execute extremely efficiently a reinforcing action against the direction of warp. In such a way, the strength of the neck 3 is increased, and the generation of warp is suppressed.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to stringed instruments such as guitars, basses, violins, etc., and particularly to a stringed instrument in which the strength of the neck can be significantly increased.

(Prior Art) Generally, this type of stringed instrument consists of a body (10) and a neck (10) connected to the body (10), as shown in FIG. 2(a).
11), and strings (12) at the end of the body (10) and the tip of the neck (11);
It is configured to erect... This string (1
2) For example, in the case of a guitar, 6 metal strings are installed, and in the case of a pace guitar, 4 thick strings with a large mass are installed.
In this type of stringed instrument, a tension of 50 kg or more in the former example and 100 kg or more in the latter example is constantly applied as a load to the neck (11) and body (10). In view of these circumstances, the neck (11) of this type of stringed instrument has been designed to prevent it from warping easily even when the tension of the strings (12) mentioned above is applied, and the most suitable material has been selected. However, due to long-term use or the influence of humidity, the neck (1l) inevitably warps upwards as shown in Figure 2 (b). Ta.

In order to artificially correct the warpage of the neck, various types of necks in which a rod-shaped iron core called a truss rod is embedded inside the neck have been proposed and put into practical use. However, this method has the following major problems. That is, since the neck of this type of stringed instrument is formed into a thin rod shape, and the body is formed into a large plate or box shape, the tension of the strings described above is applied between the tip of the neck (11) and the body (10). When it joins the rear end, the mechanically plate-like body is not affected at all, and only the weak and thin neck moves upward at the joint with the body as shown in Figure 2 (b). It is to show a warping behavior. The truss rod is usually embedded only in the neck. Therefore, even if the neck is corrected using this truss rod, it will only be corrected within the length of the neck, so even if the neck warp is corrected, the warp that occurs near the joint with the body will not be corrected. This had the disadvantage of causing the so-called waist-folding phenomenon, in which the part was deformed into the shape of a ``<'' character. When this bending phenomenon occurs, even if the instrument is tuned correctly, the pitch on the bi-position side will be out of order, and the string height will become high, making it difficult to play, which is a fatal problem for this type of stringed instrument. It was something to fear.

(Object of the Invention) The present invention eliminates the above-mentioned drawbacks, and an object of the present invention is to provide a stringed instrument in which the strength of the neck of the stringed instrument can be significantly increased.

Another object of the present invention is to provide a stringed instrument that allows the truss rod to be omitted if necessary.

(Explanation of IM Example of the Invention) An embodiment of the present invention will be described in detail below with reference to FIG. 1. In the figure, (1) indicates a guitar, which is a stringed instrument. , body (2) and this body (
2) and a neck (3) joined to the neck (3). (4)
, (4), ... are strings. This string (
One end of 4) is wound around the tuning gear (5), (5), etc. provided at the tip of the neck (3), and the other end is wound around the rear end of the body (2). It is locked to a tail piece (not shown) provided in the. (6
) is the fingerboard.

This fingerboard (6) is attached to the upper surface of the neck (3>), and metal frets (7) are driven into the upper surface of this fingerboard (6) (8).

(8) is a reinforcing member. This reinforcing member (8) is made of, for example, a titanium material formed into a plate shape with a width of about 10 mm and a thickness of about 2 mm. It is buried vertically and fixed inside the neck (3) with an adhesive such as epoxy resin.

According to such a configuration, strings (4), (4).

......'s archery power is Ne Tsuku (3) and Body (2
) Even if the neck (
The strength of 3) is significantly increased.

In addition, in the description of the above embodiment, two plate-shaped reinforcing members were buried substantially parallel to each other, but the present invention is not limited to this, and one or three or more plate-shaped reinforcing members may be buried. Also good.

Moreover, the material is not limited to the embodiment, and any material having high strength such as a plastic plate, an aluminum plate, an FRP plate, etc. may be used. Furthermore, although the reinforcing member has been described as being buried along the entire length of the neck, if the present invention is applied only for the purpose of preventing the waist from buckling,
It may be selectively arranged near the joint with the body, that is, from the 10th fret to the 20th fret. Furthermore, although the embodiments have been described with the truss rod omitted, a structure in which a reinforcing member and a truss rod coexist may be used in order to provide a strength-increasing effect as well as a correction effect. Further, in the embodiment, a guitar has been described as an example of a stringed instrument, but the present invention is not limited to this, and may be applied to any stringed instrument such as a bass guitar, violin, contrapass, etc.

(Effects of the Invention) As is clear from the above explanation, according to the stringed instrument of the present invention,
Because a plate-shaped reinforcing member is embedded perpendicular to the fingerboard surface in the length direction of the neck, it has an extremely efficient reinforcing effect in the direction of neck warping, significantly increasing the strength of the neck and preventing warping from occurring. This has the effect of making it possible to suppress

It also has the effect of suppressing the occurrence of warpage, so-called hip bending, near the neck and body joints, which could not be corrected with conventional truss rods.

Furthermore, since the strength of the neck is significantly increased, the neck can be made thinner to improve playability, if necessary.

Furthermore, since the neck strength is significantly increased, it is possible to omit the l/las rod.

In particular, if the structure is such that two reinforcing members are buried in parallel as in the example, it also has the effect of preventing the neck from twisting, which has been an extremely serious problem for this type of stringed instrument. It has extremely useful effects in practice.

[Brief explanation of the drawing]

FIG. 1 shows an embodiment of the stringed instrument of the present invention, in which (a) is a longitudinal cross-sectional view of the neck, and (b) is an enlarged cross-sectional view taken along the line X--X in (a). Figure 2 shows a conventional stringed instrument, (a) is a side view thereof, (b) is a side view showing the neck in a warped state,
(C) is a side view showing a state in which the warp of the neck has been corrected by a truss rod. (1)...Guitar (stringed instrument), (2)...
····body. (3)...Neck, (4), (4),
······string. (8), (8)... Reinforcement member, (10
)···body. (11)...Neck, (12), (1
2), ...Strings.

Claims (2)

[Claims] (1) A stringed instrument having a neck and a body, characterized in that a plate-shaped reinforcing member is embedded in the longitudinal direction of the neck perpendicularly to the fingerboard surface. (2) The stringed instrument according to claim 1, wherein two reinforcing members are embedded at a predetermined interval.