JPS5953893A - Fine adjusting peg - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a peg (spool) for a violin, viola, or chestpiece, and relates to a peg that can be easily operated for X tuning. Note that the names of each 9°y++ of the musical instrument used in the following explanations are shown in Figure 1 for confirmation. In Fig. 1, 1 (1) is a pec, (, 2) is a bezel, (3) is a saddle, (ri) is a bridge, and (left) is an existing fine adjustment fitting 1 (A) is a tailpiece.

The pitch of violins, violas, and bass guitars changes when the temperature and humidity change due to the difference in the quality of the first string and the instrument itself. Therefore, it is necessary to adjust the tuning by operating one peg etc. each time. This is also affected by the heat of the lights emitted during the performance. It is also said that when playing, power is applied to the first string, causing one note to be out of tune. In such a case, you will have to adjust the tuning by operating pegs, etc. As mentioned above, one tuning string must be done quite frequently. However, tuning with pegs is not an easy operation.
It requires skill, and even for an expert, it is not an easy operation when quick tuning is required.

Therefore, in order to eliminate this inconvenience, we installed a fine adjustment fitting on the part of the tailpiece where the strings can be accessed.
There are commercially available instruments that allow tuning by rotating the knob of the metal fitting. Although the fine adjustment fitting has achieved its purpose, it has some disadvantages in terms of operation and functionality.

First, I will talk about the disadvantages in terms of operation. In other words, in order to operate the knob of the fine-adjustment fitting, you have to change your playing posture once. This is 1
This is very inconvenient when tuning has to be done quickly. Particularly when the fine adjustment fittings are attached to a plurality of strings, it is very inconvenient to operate the fine adjustment fittings with the left hand while operating the bow with the right hand. Also, in the case of people who do not have a long hand), the situation is beyond practical use.

Next, we will discuss some disadvantages regarding one function. Considering the phenomenon that occurs when the 1st tuning is performed with the tailpiece 111j as in the case of the fine adjustment fitting, the A tuning is caused by the act of pulling or loosening/stiffening the string. Therefore, look at a point on the string to be tuned near the position where the X tuning is performed.41! Then, that point moves by 1 when tuning by 1. The further away from the X tuning position, the smaller the amount of movement. and 1
The fringe is close to the fine adjustment fitting. Therefore, the movement of the string due to X tuning at one bridge position is a total of G,/I- times as much as when tuning by one peg.

This is due to the fact that the position of the furino/ is 7.J apart from the entire length of the first string (the length of the end of the zatoru piece), and it is biased toward the tailpiece side at a ratio of 73 to 3rd place. It is. The movement of the string at the position of the bridge not only deforms the bridge but also changes the tension of other strings. In other words, the pitch of the other strings will not be disturbed.

This phenomenon of disturbing the pitch of one string over another is especially noticeable when adjusting multiple strings. This phenomenon occurs even if the tuning is performed at the peg position as described above, but the fact that the difference in amount is more than four times h as mentioned above appears as a large difference in practical use. And h 1 tuning is usually 11 ＼ Adjust one basic string to the pitch of another reference sound source 1 Then 1 The relevant side string l - / This is based on one basic string 7 (Tune the remaining strings as 1. Then,
As mentioned above, by tuning the remaining strings, 1
If a phenomenon occurs in which the pitch of the other string 1, that is, the previously tuned reference string, goes out of tune, the deviation will be 1, and it is easy to imagine that this is a very inconvenient situation.

The present invention solves the difficulty of tuning by one peck. There is also a tail piece already on the market as described above that eliminates the disadvantages of the fine adjustment fittings, that is, eliminates the need for the fine adjustment fittings.

The present invention will be explained with reference to the drawings. FIG. 2 is a front view of the bed according to the invention; FIG. 3 is a side view of FIG. 1; and FIG. As shown in FIG.
, a conical tip (10). Thin rod (9)
As shown in FIG. 3, the rod (9A) and the thin rod light (9B) are integrated with the thin rod (9). One thin rod (9A) is inserted into a hole made in the conical part (g) and fixed. The thin rod light (qB) is still inserted into the hole made in the tip (10) of the conical part and fixed. As shown in Figure 1, the handle X, conical part (g), thin rod (q), and conical part tip (10) are structured so that they cannot move relative to each other.

Next, Figure 3 shows the peg in use. Figure 4 is a bottom view of the figure. The peck shown in FIG.
) is inserted into the (//) of Figure S.
is a string. As shown in No. s1, the string (//) is wound around the #lIl rod (wa), which is different from the traditional betsugu. 17.1 Furthermore, the diameter of the thin rod (9) is smaller than the diameter of the part around which the strings of a conventional bass guitar can be wound. Therefore, the l·lux generated in the thin rod (9) due to the tension of one string (//) is also smaller than the torque generated in a conventional peck. The ratio of these torque values is proportional to the ratio of the diameters of the parts around which the two strings are wound. As described above, in the peg according to the present invention, the I-lux generated in the peg due to the tension of one string (//) is smaller than that of the conventional peg, so the peg can be operated with one less force. Therefore, it is easy to operate.

A phenomenon caused by reducing the diameter of the part around which the first string (//) is wound is that the rotation angle of the peck to wind a string of a certain length becomes larger than that of a conventional string. On the contrary, this phenomenon may become easier when tuning by winding or loosening the strings.

As described above, the peg according to the present invention can be operated with less force than the conventional peg, and in addition, the movement of the string compared to the rotation angle of the string is less than that of the conventional peg. Easy to fine-tune.

In this way, it is possible to easily make fine adjustments at the peg position without using the conventional fine adjustment metal fittings attached to the tailpiece side, which has many disadvantages, making it a very practical peg.

[Brief explanation of the drawing]

Fig. 7 is a confirmation diagram of the names of each part of the peg - Fig. 2 is a front view of the peg of the present invention 1 Fig. 3 is a side view of Fig. 2;
AA sectional view in the figure, FIG. 3 is an explanatory diagram of the state in which the present invention has been implemented, and FIG. 4 is a bottom view of FIG.

Claims (1)

[Claims] The part where the first string can be wound around the conical part of the peg.
Make it thinner than other parts.