JPS6230052Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a biasing device for a tremolo tailpiece used in electric guitars, etc., and in particular, biases a swingable string holder that holds strings in the direction of pulling the strings. The present invention relates to a tremolo tailpiece biasing device equipped with a compression coil spring and a spring force adjustment mechanism.

As shown in FIG. 1, a conventional tremolo tailpiece for an electric guitar has a string holder 1 in which pieces supporting the strings are arranged side by side and swings over a through hole 3 provided in a body plate 2 of the guitar. Attachment: The lower end of the string holder 1 was pulled from the front inside the through hole 3 by a coil spring 4, and a lever 6 was attached to the rear of the string holder 1. The front part 1a of the flange part of the string holder 1 is formed with a curved lower surface, and this part is loosely fixed with wood screws 5, and the body plate 2
The lower part of the string holder 1 is strongly urged forward by the coil spring 4 attached to the recess formed from the back side of the string holder 1, which overcomes the tensile force of the string and moves the string holder 1 into the through hole 3. It is kept horizontal at the top. Therefore, in this state, by pressing the tip of the lever 6 inward, the string holder 1 overcomes the biasing force of the coil spring 4 and swings forward about the wood screw 5, changing the tension of the string 7. It had a structure that changed the sound by changing the sound.

However, in a tremolo tailpiece biasing device with this type of structure, the coil spring is assembled separately from the main body, making it difficult to install or replace the coil spring, and it is also difficult to adjust the spring force of the coil spring, making it difficult to operate the tremolo. The drawback was that it was difficult to make adjustments.

This idea was made in order to eliminate the above-mentioned drawbacks, and it is a tremolo tailpiece that allows the coil spring to be easily assembled and replaced, and the spring force for adjusting the tremolo operation can be easily adjusted. An object of the present invention is to provide a biasing device.

Hereinafter, embodiments of this invention will be described based on the drawings.

Fig. 2 shows a plan view of the tremolo tailpiece, Fig. 3 shows its right side view, and Fig. 4 shows its front view. The inside of the base 10 is formed in a concave shape so as to pivotally support and store the string holder 11, and furthermore, the base 10 has a concave shape in which a compression coil spring 26 is stored in the lower front part. Two spring chambers 12
a, 12b are provided, and a lever 17 is provided at the rear lower part.
A convex portion 13 is formed into which the distal end portion is inserted. A string holder 11 is swingably supported on a base 10 by shafts 14a and 14b, and a lever 17 for operating a tremolo is rotatably screwed onto the rear part of the string holder 11, and a lever 17 shown in FIG. Six pieces 22 shown in the figure are arranged in parallel. These bridges 22 function as bridges for the strings 18, and are connected to the rear wall 20 of the string holder 11 via tension adjustment screws 25, respectively. Height adjustment screw 24
are vertically penetrated and screwed together, and an insertion hole 23 for passing the string 18 is bored from the front part to the upper center part. 19 is a hole 6 bored in the front part of the string holder 11.
The string insertion hole 19 is formed so as to lock and hold the link at the end of the string 18 inside.

A compression coil spring 26 serving as a biasing device is attached to the base 10
It is stored vertically in two spring chambers 12a and 12b, respectively, its upper end abuts the front lower part of the string holder 11, and its lower end abuts the threaded spring seat 27,
The strong screw force acts to push the front part of the string holder 11 upward. Spring seat with screw 2
7 is screwed into screws cut into the spring chambers 12a and 12b, and a square hole is bored in the center, into which a square pin 28 for adjusting spring pressure is loosely inserted from below. The head a of the spring pressure adjusting square pin 28 is rotatably fitted into a groove at the bottom of the opening of the spring chamber 12a. 29 is a C ring that prevents the head 28a from coming off. Therefore, by rotating the spring pressure adjusting square pin 28 from below with a screwdriver or the like, the threaded spring seat 27 moves up and down.
The biasing force of the compression coil spring 26, that is, the string holder 1
This is a structure in which the force that pushes up the front part of 1 is adjusted. Of course, the structures within the two spring chambers 12a and 12b are the same, and the same biasing force is applied.

When attaching the strings 18 to the tremolo tailpiece having the above structure, first insert the tip of each string 18 into the string insertion hole 19 of the string holder 11, and insert each piece 2 from there.
The string is passed upward through the insertion hole 23 of No. 2, and the tip of the string is guided as it is to the thread winder at the neck portion, where it is wound up. Then, due to the tensile force of the string 18, the string holder 11 receives a rotational force in the counterclockwise direction (with respect to FIG. 5) around the shafts 14a and 14b, that is, it is urged to press the front part downward, and the string holder 11 is urged to press the front part downward. 10 units
It becomes stationary when it hits a certain part. At this time, the compression coil spring 26 is stronger than the biasing force of the spring in the direction opposite to the string tension on the string holder 11, and the string holder 11 maintains the rotational force in the counterclockwise direction. If tremolo operation is performed in this state, lever 1
7, the string holder 11 receives a clockwise rotational force about the shafts 14a and 14b. This causes the operating force of the lever 17 and the compression coil spring 26 to be reduced.
The biasing force overcomes the tensile force of the string, and the string holder 11 rotates clockwise about the shafts 14a and 14b, that is, in a direction that lifts the front part of the string holder 11, and the tension of the string increases and the sound becomes higher. . And lever 17
When the pitch is returned to its original value, everything works in reverse and the sound drops to its original pitch, and by repeating this process, a tremolo performance is performed. The stiffness of the tremolo operation by the lever 17 is determined by the urging force of the compression coil spring 26, and this can be easily adjusted by turning the spring pressure adjusting square pin 28 with a screwdriver or the like. In addition, when replacing the compression coil spring 26 when it becomes fatigued, remove the C ring 29 and remove the square pin 28 and spring seat 2.
This can be done by removing 7.

As described above, according to the tremolo tailpiece biasing device of this invention, a compression coil spring is housed in the spring chamber provided at the bottom of the base, and this spring biases the front part of the string holder upward. Since the biasing force of the compression coil spring is adjusted by moving the threaded spring seat provided at the bottom of the spring chamber, the assembly work of the main body including the compression coil spring during manufacturing is significantly simplified. The spring force for tremolo operation can be easily adjusted, and the work of replacing the compression coil spring can be simpler than in the past.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional explanatory diagram of a conventional tremolo device, Fig. 2 is a plan view of the tremolo tailpiece of this invention, Fig. 3 is a right side view of the same, Fig. 4 is a front view of the same, and Fig. 5 is a second tremolo tailpiece. The AA sectional view in the figure and FIG. 6 are perspective views of the pieces. 10... Base, 11... String holder, 12a, 1
2b... Spring chamber, 15... Body plate, 17... Lever, 22... Piece, 26... Compression coil spring, 2
7...Screwed spring seat, 27a...Square hole, 28...
Square pin for adjusting spring pressure.

Claims (1)

[Scope of utility model registration request] A guitar tremolo tailpiece biasing device comprises a string holder having a pair of string-holding bridges arranged side by side on a base fixed to a body plate, the string holder having a lever for operating the tremolo attached to a part of the string holder, and a spring chamber for vertically storing a compression coil spring at the lower front part of the base, the upper end of the compression coil spring being attached so as to push up the front part of the string holder, and a threaded spring seat for holding the lower end of the compression coil spring being screwed into the open lower part of the spring chamber,
A spring chamber is provided at the bottom of the spring chamber, and a headed square pin for adjusting the spring pressure is loosely fitted into the square hole formed in the center of the threaded spring seat from below. The headed square pin is rotatably fitted into the lower opening of the spring chamber.