JPH026473Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention relates to a fine adjustment mechanism for strings in electric guitars, and more specifically, it is possible to widen the adjustment range and make fine adjustments by tuning the strings in two stages. This relates to the double tuning mechanism for electric guitars that made this possible.

[Conventional technology]

Generally, electric guitars have a spool on the neck side, and the tension of the string is adjusted by winding the spool. However, since delicate adjustments cannot be made with the spool alone, recently a fine adjustment mechanism has been added to the tremolo unit. It started to be established.

In conventional fine adjustment mechanisms, a string stop is installed in the tremolo unit so that it can move forward and backward in the neck direction, and fine adjustments are made by rotating an adjustment screw that engages with the string stop and moving the string stop forward and backward. was common.

[Problem that the invention attempts to solve]

However, with such conventional fine adjustment mechanisms, the stroke width of the string stop is limited by the space of the tremolo unit, making it impossible to make large fine adjustments. Since it is directly tightened and loosened, it has the disadvantage that very delicate fine tuning is difficult.

The present invention solves the above-mentioned conventional problems, and provides a double tuning mechanism for electric guitars that allows for a large fine adjustment range and at the same time allows delicate tuning.

[Means for solving problems]

The means of the present invention for solving the above problems are as follows.

A string hanging rod is pivotally attached to a bridge saddle that can be fixed to a tremolo unit so as to be freely rotatable in the vertical direction, and a hollow first adjusting screw is screwed in the rear screw hole of the string hanging rod in the front and back direction. The first adjustment screw is urged upward by a coiled spring, and the second adjustment screw is screwed into the screw hole of the tremolo unit provided at a position above the first adjustment screw so that it can move forward and backward in the vertical direction. That's true.

[Effect]

Pass the string through the hollow first adjustment screw, lock the end, and wind the other end of the string around the neck spool to obtain the approximate tension and adjust the bridge saddle position.
By fixing it on the tremolo unit while adjusting the octave, and rotating the first adjustment screw, the screw advances and retreats back and forth, thereby tightening and loosening the strings.
A primary fine adjustment of the string is performed. Next, by moving the second adjustment screw up and down, the string hanging rod is rotated up and down, and as a result, the tension of the string changes slightly, so that secondary fine adjustment of the string is performed.

Embodiments of the present invention will be specifically described below with reference to the drawings.

〔Example〕

1 to 5 show an embodiment of the present invention, in which FIG. 1 is an overall plan view of the tremolo unit, FIG. 2 is a left side view of the tremolo unit, FIG. 3 is a longitudinal sectional view of the same, and FIG.
FIG. 5 is a sectional view taken along the line A--A in FIG. 4.

Reference numeral 1 denotes a tremolo unit, and the unit 1 is composed of a flat plate part 1A, a leg part 1B extending downward from the central lower surface of the flat plate part 1A, and a rising part 1C rising obliquely rearward and upward from the rear end of the flat plate part 1A. More specifically, six screw holes 2 are opened in the front of the flat plate part 1A, corresponding to the width of each string, and six window holes 3 are formed in the rising part 1C, penetrating back and forth and extending in the vertical direction. A screw hole 4 is formed in the upper frame of the rising portion 1C, and the screw hole 4 penetrates into each window hole 3 from above.

5 is a bridge saddle with a slit 6 in the center.
The slit 6 and the screw hole 2 of the tremolo unit can be screwed together with a fixing screw 9.

Reference numeral 10 denotes a string hanging rod, which consists of a main body 12 having a string passage hole 11 in the center and a string holding plate 13, and the front end of the main body 12 is connected to the rising part 8 of the bridge saddle.
It is pivotally connected with a pin 14 so as to be freely rotatable. Further, a screw hole 15 is opened at the rear end of the main body 12 and penetrates from behind to the string passage hole 11 in the front and rear directions. The back end of the string press plate 13 is pivotally supported by the upper rear part of the main body 12 and a pin 16, and the front end, on the right side, has a string press screw 1 that passes through the string press plate 13 and is screwed into the screw hole of the main body 12.
7 is provided so that it can move up and down.

Reference numeral 18 denotes a first adjustment screw, which passes through the window hole 3 from the rear of the tremolo unit and is screwed into the screw hole 15 of the string hanging rod body 12 so that it can move forward and backward. This first
The adjustment screw 18 has a string passage hole 19 penetrating therein in the longitudinal direction, and the string passage hole 19 is connected to the first adjustment screw 18.
The knob part forms a large diameter part 20 with a large diameter, and the shaft part has a small diameter.

A conical coil spring 21 is fixed by fitting its lower end into a curved groove 22 provided on the bottom side wall of the window hole 3. This coil spring 21
Push up the adjustment screw 18 from below and always tighten the string hook 1.
0 is raised from the flat plate portion 1A of the tremolo unit.

A second adjustment screw 23 is screwed into the screw hole 4 in the upper frame of the rising portion 1C of the tremolo unit so as to be able to move up and down, and is pushed up by the bias of the coil spring 21. Its tip is in contact with the central part of the shaft of 18.

Next, the operation of this embodiment will be explained.

First, pass the guitar string through the string passage hole 20 of the first adjustment screw 18 from behind, and insert the string end into the large diameter part 20.
, and wrap the other end of the string around the spool at the tip of the guitar neck to obtain the approximate tension. In this state, adjust the string octave. In other words, Bridge Saddle 5
The bridge saddle 5 is moved back and forth along the slit 6 with the fixing screw 9 loosened, and when the bridge position is determined, the fixing screw 9 is tightened to fix the position of the bridge saddle 5.

Next, by rotating the first adjustment screw 18, the tension of the string is finely adjusted. When this is completed, the string press plate 13 is closed and the string press screw 17 is tightened to fix the string to the bridge.

Finally, the second adjustment screw 22 is operated to vertically adjust the floating string hanging rod 10, thereby secondaryly adjusting the tension of the string.

Although this embodiment shows a string hanging rod having a string press plate, the string press plate is not necessarily necessary in the present invention, and the coil spring is not limited to a conical shape.

[Effect of idea]

The present invention has the following effects.

(a) a first adjustment screw that pulls the string directly in the thread direction;
Since it is equipped with a second adjustment screw that indirectly applies tension to the strings by pushing down the raised string hanging rod, the range of fine adjustment is significantly larger than that of conventional mechanisms.

(b) Since the second adjustment screw does not tension the string directly to the screw pitch, but indirectly by rotating the string hanging rod, subtle fine tuning is possible.

(c) Since a coil spring is used to bias the string hanging rod upward, the return is more accurate and fine adjustment is possible compared to a leaf spring.

[Brief explanation of the drawing]

1 to 5 show an embodiment of the present invention, in which FIG. 1 is a plan view of the tremolo unit, FIG. 2 is a left side view of the tremolo unit, FIG. 3 is a longitudinal sectional view of the same, and FIG. FIG. 5 is a sectional view taken along the line A--A in FIG. 4. 1...Tremolo unit, 1A...Flat plate part, 1
B...leg, 1C...rising part, 2...screw hole, 3...window hole, 4...screw hole, 5...bridge saddle, 6...slit, 7...flat plate part, 8...
Standing part, 9...Fixing screw, 10...String rod, 11...String hole, 12...Main body, 13...
String press plate, 14...pin, 15...screw hole, 1
6...Pin, 17...String retainer screw, 18...First adjustment screw, 19...String hole, 20...Large diameter part,
21...Coil spring, 22...Curved groove, 23...
Second adjustment screw.

Claims (1)

[Scope of utility model registration request] A string hanging rod is pivotally attached to a bridge saddle which can be fixed to a tremolo unit so as to be freely rotatable in the vertical direction, and a hollow first adjustment screw is screwed into the rear screw hole of the string hanging rod in the front and back direction. The first adjustment screw is urged upward by a coiled spring, and the second adjustment screw is screwed into the screw hole of the tremolo unit provided at a position above the first adjustment screw to be able to move forward and backward in the vertical direction. Double tuning mechanism for electric guitar.