JPH026472Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a fine tuning mechanism provided in a tremolo unit for an electric guitar to ultimately finely adjust the tension of the strings.

Conventional Technology In general, electric guitars have a tremolo unit attached to the body side, and one end of the strings is hooked to the tremolo unit, while a peg is provided on the neck side, and the other end of the string is hooked onto the tremolo unit. The ends are wrapped, and the strength of the tension can be adjusted by turning the same spool, but considering that fine adjustments cannot be made with the same spool. As a result, a fin inching mechanism was provided on the tremolo unit side.

However, in the conventional structure of the fine tuning mechanism, since the string is pulled straight at one end on the body side, it is not possible to obtain a sufficient adjustment stroke. The problem is that it requires a lot of effort. Another problem with the conventional fin inching mechanism is that the tremolo unit as a whole becomes larger in size because it is provided separately from the bridge saddle.

Problems that the invention attempts to solve This invention is an attempt to improve the conventional problems as described above, and it is possible to smoothly perform fine fine tuning with a light touch. The problem to be solved is that it is possible to obtain a compact tremolo unit by integrally incorporating the fine inching mechanism into the bridge saddle. The specific means and effects for solving the above problems are as follows.

Means for Solving the Problems A notch is provided at the front end and extends in the front-rear direction, and a string height adjustment roller is rotatably mounted on the front end of the notch.

At the back of the cutout part, there is a hole for hanging the string, and above the hole there is a slit extending horizontally, and a plate spring formed in the shape of a strip is inserted into the slit, and the tip of the hole is provided. Face inside the notch.

At the back of the notch, the upper end thereof has an appropriate inclination angle toward the notch, and a fine inch screw is screwed into the notch so that the fine inch screw can be freely advanced and retracted. The groove is formed to have a diameter slightly larger than the width of the notch, and a screw groove with the same diameter as the fine-inch Yuning screw is carved on the inner wall surface of the notch, located on the extension line of the fine-inch Yuning screw. do.

Operation By rotating the fin-inch screw in the advancing direction, a state is obtained in which the tip of the screw comes into contact with the leaf spring, slides on the leaf spring, and presses the leaf spring. By being pressed by the fine inching screw in this manner, the leaf spring is able to press the string downward through its elastic deformation.

Examples Specific examples of the present invention will be described below.

In each drawing shown in Figures 1 to 6, 1
indicates a tremolo unit. The unit 1 consists of a main body part 1A and a block part 1B hanging downward from the main body part 1A.The main body part 1A has a horizontal part 3 and a rising part 4, and is formed into an L-shape. A plurality of bridge saddles 5 are attached to the main body 1 in a manner that corresponds to the number of strings and can move forward and backward. That is, each bridge saddle 5 is placed on the horizontal portion 3 so as to extend in the front-rear direction, and a through hole 6 is opened in the rising portion 4 so as to face each bridge saddle 5 described above. A screw hole 7 for octave adjustment is drilled in the rear back surface of each bridge saddle 5, and an octave adjustment screw 8 is loosely fitted into each through hole 6, and the threaded end portion 8' of the screw hole 7 is inserted into the screw hole 7. It is screwed together so that it can move forward and backward. Further, a spring 9 is interposed between the bridge saddle 5 and the rising portion 4 for each adjustment screw 8, and each adjustment screw 8 and bridge saddle 5 are provided so as to be biased forward. . Further, each bridge saddle 5 is provided with a notch 10 with an open front and lower bottom surface, and the notch 10 is provided with vertical inner wall surfaces 10a, 10a on both left and right sides and extends in the front-rear direction. It will be done. At the front end of the notch 10 is a support shaft 1 that extends horizontally between the left and right walls 5a, 5a.
A string height adjusting roller 12 is rotatably mounted on the shaft via the string height adjusting roller 1. Further, a pair of left and right screw holes 1 are provided in both the left and right walls 5a, 5a, located near the front ends thereof.
3, 13 are vertically penetrated and opened, and both screw holes 13, 13 have string height adjustment screws 14,
14 are screwed together so that they can move forward and backward. On the other hand, on the back of the bridge saddle 5 is the octave adjustment screw 8 mentioned above.
A string latching hole 15 is opened with one end facing the notch 10 above the string.
Further, a slit 16 is provided above the latching hole 15, and the slit 16 is provided so as to extend in the horizontal direction so that its tip faces the notch 10, similar to the latching hole 15. A leaf spring 17 is inserted into the slit 16. That is, the leaf spring 17 is formed into a strip shape, and its base portion is locked in the slit 16, while its tip portion is provided so as to extend forward within the notch portion 10. Furthermore, a sloped surface 18 is formed by cutting out the upper end of the rear back surface, and the sloped surface 18 has a direction perpendicular to the sloped surface 18, that is, a diagonally forward downward direction. A screw hole 19 is then bored. Therefore, the screw hole 19 is formed in the notch 10.
The notch 10 has a diameter slightly larger than the width thereof, and an arc having the same diameter as the screw hole 19 is formed in an extension of the screw hole 19 on both vertical inner walls of the notch 10. Screw grooves 20, 20 are carved therein. Then, a fin threading screw 21 is screwed into the screw hole 19 and the screw groove 20 so that it can move forward and backward.
Furthermore, the tip of the fine inching screw 21 is formed to be rounded, and is provided so that the tip can come into contact with the leaf spring 17 at an appropriate angle of inclination. .

Next, the effect will be explained.

With one end of the string 2 hooked to the hooking hole 15 formed at the tip of the bridge saddle 5, the other end of the string 2 is wound around the thread spool provided on the neck side. It can be stretched to the strength of By rotating the string height adjustment screw 14 while the string 2 is tensioned in this way, the front end of the bridge saddle 5 can be raised to an appropriate height, thereby adjusting the string height as desired. It can be adjusted to the height position. Further, by rotating the screw 8, the bridge saddle 5 can be moved forward or backward, thereby making it possible to perform octave adjustment. Furthermore, the tension of the string 2 can be finely adjusted by rotating the fine tuning screw 21 in the entry direction while the string height adjustment and octave adjustment are obtained in this manner. More specifically, by rotating the fine inching screw 21 in the advancing direction, a state is obtained in which the tip thereof comes into contact with the leaf spring 17. By further rotating the fine-inch Yuning screw 21 while in contact with the leaf spring 17 in this manner, the fine-inch Yuning screw 21 slides on the leaf spring 17 and presses against the leaf spring 17. Effect can be obtained. And like this, the leaf spring 17 is connected to the fine inch Yuning screw 21.
The leaf spring 17 undergoes elastic deformation by being pressed by the spring 17, and through this elastic deformation, the string 2 is pulled downward while being squeezed in both the front and rear directions. can get. Further, by pulling the string 2 downward in this manner, tension (a state in which the string 2 is bent at an appropriate angle) is obtained between it and the string height adjustment roller 12.
In other words, tension can be obtained at the same time as fining. Furthermore, screw grooves 20 are provided on both the left and right walls of the cutout portion 10 so as to be located on the extension line of the fine inch thread 21, thereby giving linearity to the fine inch thread 21. I can do it.

Effects of the invention The invention is constructed as described above.
As mentioned above, a leaf spring is interposed between the string and the fin inch Yuning screw, and the fin inch Yuning is performed through the elastic deformation of the leaf spring, making it possible to make delicate adjustments with a light touch. I was able to obtain it smoothly.

Furthermore, in the present invention, by incorporating the fin inching mechanism as described above into the bridge saddle, the overall shape of the tremolo unit can be made significantly more compact.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing the entirety of a tremolo unit equipped with a fine inching mechanism according to the present invention, Fig. 2 is a sectional view of the same side, and Fig. 3 is a tremolo unit formed by integrally incorporating the fine inching mechanism. Fig. 4 is a bottom view of the single bridge saddle; Fig. 5 is a sectional view taken along line A-A in Fig. 4;
FIG. 6 is an external perspective view of the leaf spring. 1...Tremolo unit, 1A...Main body, 1
B...Block part, 2...String, 3...Horizontal part, 4
... Rise part, 5 ... Bridge saddle, 5a
...Wall part, 6...Through hole, 7...Screw hole, 8...
Octave adjustment screw, 8'... Tip screw part, 9...
... Spring, 10 ... Notch, 10a ... Vertical inner wall surface, 11 ... Support shaft, 12 ... String height adjustment roller, 13 ... Screw hole, 14 ... String height adjustment screw, 1
5...Latching hole, 16...Slit, 17...
Leaf spring, 18... Gradient surface, 19... Screw hole, 20
...Screw groove, 21... Fine inch Yuning screw.

Claims (1)

[Scope of utility model registration request] A notch is opened at the front end and extends in the front-rear direction, and a string height adjustment roller is rotatably mounted on the front end of the notch. A latching hole is provided in the string, a slit is provided above the slit extending horizontally, and a leaf spring formed in the shape of a strip is inserted into the slit.
The tip part faces into the notch, and the upper end of the rear part has an appropriate inclination angle toward the notch, so that the fine-inching screw can be screwed back and forth freely. The fine-inch Yuning screw is formed to have a diameter slightly larger than the width of the notch, and the fine-inch Yuning screw is located on the extension line of the fine-inch Yuning screw on the inner wall surface of the notch. A fine tuning mechanism for strings in an electric guitar, which has a screw groove of the same diameter.