JP3221831U - bridge - Google Patents

Abstract

To provide a bridge for a stringed instrument which can be easily installed without using a dedicated tool and can be adjusted to any fixed degree. A bridge (1) has a body extending a plurality of slots in a longitudinal direction, and a first extension having a flat upper surface provided at both ends in the longitudinal direction of the body and continuous with the upper surface of the body. And a second extending portion provided apart from the first extending portion in the height direction of the body portion, and a through hole penetrating the first and second extending portions in the height direction of the body portion. Inner wheel 11 which is formed in a disk shape having a screw hole at the center, and the screw hole and the through hole are coaxially accommodated in the gap between the first and second extension parts. , And a plurality of saddles 12 housed in each of the plurality of slots so that the position can be adjusted in the direction of the short side of the body and the strings are locked; By threading the inner wheel to the support while passing the support provided with the mating male screw through the through hole, Ri attached. [Selected figure] Figure 2

Description

  The present invention relates to a bridge that can be mechanically fixed to a stringed instrument.

The bridge used for string instruments such as guitars is for transmitting string vibration to the guitar body, and has a function to adjust the string height, octave pitch, and string tension.
The guitar bridge is roughly divided into a type in which a saddle is simply placed on the bridge base (used for strat type guitars), and a type in which a bridge and a pickup are integrated (for telecas type guitars) And Tune-O-Matic type (which is used for a Les Paul type guitar). The invention relates in particular to a tune-a- matic type guitar bridge.

  The Tune-Amatic type guitar bridge is generally divided into a stop tailpiece for fixing the strings and a bridge for fixing the position and height of the strings.

  In a conventional tune-automatic type bridge, a string height adjusting thumb wheel is screwed into a column mounted on a guitar body to be positioned at an appropriate height, and the bridge is provided in through holes provided at both ends thereof. Place it on the thumbwheel while passing the column. At this time, the bridge is fixed to the guitar body only by the tension of the strings. As a result, when the strings are loosened, the force to hold the bridge is lost, and the bridge may be detached. In particular, there is a possibility that the bridge may fall off because the tension of the strings is lost when the strings are re-tuned. In addition, the thumbwheel below the bridge moved, and the angle-adjusted string height often shifted at each string change.

  In addition, since the bridge is not fixed at the time of performance, the saddle vibrates when the string is played, which may cause unnecessary noise. This extra resonance could damage the sound and sustain that the guitar originally had. Also, for players who prefer to be installed only with string tension, it is preferable that the guitar bridge not be fixed mechanically, but it is not fixed if the guitar bridge is fixed to the guitar body The guitar bridge which can use both cases separately was not common.

  Therefore, in order to solve these problems, those having a structure in which the guitar bridge is fixed to the guitar body by providing a dedicated lock cap from the through hole at the top of the extension of the guitar bridge are put on the market. Such a fixable guitar bridge requires a special tool to fix the bridge to the guitar body, and could not be installed easily. In addition, guitar players often have a strong preference for the appearance of the instrument, have a resistance to a large change in the appearance to be able to fix the bridge, and may not adopt the fixable guitar bridge. there were.

  The present invention solves the above-mentioned problems, for example, mechanically, without using special tools, without making unnecessary changes to the appearance of ABR-1 type guitar bridge without retainer spring. The purpose is to provide a guitar bridge that can be fixed.

  In order to solve the above-mentioned problems, the guitar bridge of the present invention is a body in which a plurality of slots are arranged in the longitudinal direction, and extending portions provided on both ends in the longitudinal direction of the body, the body being A first extending portion having a flat upper surface continuous with the upper surface, a second extending portion provided to be separated from the first extending portion in the height direction of the trunk, a first extending portion and a second It is formed in the disk shape which has a screw hole in the center, and the extension part provided with the penetration part which penetrates an extension part in the height direction of a trunk part, and a screw hole. The inner wheel is housed so that the screw hole and the through hole are coaxial, and each of the plurality of slots is housed so that the position can be adjusted in the short direction of the body, and the strings are locked And a support provided with a saddle and provided with an external thread provided on the main body of the stringed instrument and screwed with the internal thread of the screw hole through the through hole , Characterized in that attached to the stringed instrument by screwing the inner wheel strut.

FIG. 2 is an enlarged view of the vicinity of the body of the guitar to which the bridge of the present invention is attached. 1 is a perspective view of a bridge of the present invention. FIG. 2 is a perspective view of a bridge base in the bridge of the present invention. FIG. 2 is a perspective view of a saddle used in the bridge of the present invention. It is a perspective view of the inner wheel in the bridge of the present invention.

  Hereinafter, embodiments of the present invention will be described based on the drawings. In the following description, the same members are denoted by the same reference numerals, and the description of the members once described will be omitted as appropriate.

  FIG. 1 is an enlarged view of the vicinity of a body 20 of a guitar 2 to which a bridge 1 according to the present invention is attached. The guitar 2 includes a body 20, a neck (not shown) extending from the body 20, and a head (not shown) provided at a distal end of the neck. In the guitar 2, six strings 3 are stretched substantially in parallel from the head to the body 20.

  Each string 3 is fixed by being anchored at one end to a tailpiece 23 provided on the body 20, and the other end is attached to a peg (thread winding) provided on the head. As shown in FIG. 1, each string 3 is stretched substantially parallel on the neck from the body 20 to the head while being locked to the bridge 1 provided in the vicinity of the tailpiece 23. The pitch can be adjusted by adjusting the tension of each string 3 by turning the peg. In addition, by adjusting the bridge 1, octave adjustment (correction of pitch deviation due to frets or strings) can be performed.

  As shown in FIG. 1, the body 20 is provided with a pickup 24 for extracting the vibration of the strings 3 as an electrical signal, in addition to the above-mentioned tail piece 23 and the bridge 1. The body 20 may further include components such as, for example, pickguards and volume controls.

  At a position where the bridge 1 is attached to the body 20, two columns 21 are provided in a protruding manner. The post 21 is externally threaded over its entire length. A disk-like thumb wheel 22 having a hole screwed with the column 21 is screwed to a desired height and attached to each column 21. The thumb wheel 22 supports the bridge 1 in its mounting position. By turning the thumbwheel, the mounting height of the entire bridge 1 can be adjusted, which makes it possible to adjust the position of the strings 3 indicated by the saddle 12.

  FIG. 2 is a perspective view of the bridge 1 of the present invention. The bridge 1 includes a bridge base 10, an inner wheel 11, and a saddle 12. FIG. 3 is a perspective view of the bridge base 10. The bridge base 10 is formed of a rigid metal such as steel, brass or stainless steel. The bridge base 10 has a body 101 and extension parts 102 at both ends of the body 101.

  The body portion 101 is a portion that holds the saddle 12 movably along the direction in which the strings 3 are stretched when performing octave adjustment. The body portion 101 is provided with a slot 103 for accommodating the saddle 12 corresponding to each string 3, and for each slot 103, an adjustment screw support groove 104 and an adjustment for holding an adjustment screw provided in the saddle 12 at an appropriate position. Screw support holes 105 are provided.

  FIG. 4 is a perspective view of a saddle 12 used in the bridge 1 of the present invention. The saddle 12 is formed of the same material as the bridge base 10. The material of the saddle may be changed to, for example, titanium, brass, string saver, task, nylon or the like in order to obtain desired sound quality. As shown in FIG. 3, the saddle 12 includes a movable piece 121, an adjustment screw 122, and a washer 123.

  The movable piece 121 has a guide portion 121a and a locking portion 121b. The guide portion 121a has a width substantially the same as the width of the slot 103 provided in the trunk portion 101, is accommodated in the slot 103, and slides in the slot 103 in octave adjustment. The guide portion 121 a is provided with a screw hole 121 c screwed with the adjustment screw 122. The locking portion 121 b protrudes wider than the guide portion 121 a, and is locked to the edge of the slot 103 when the guide portion 121 a is accommodated in the slot 103. The guide portion 121a has a substantially triangular cross section by a vertical surface 121d continuous with the locking portion 121b and the inclined surface 121e.

  The movable piece 121 is attached to the slot 103 in a state in which the adjustment screw 122 having passed through the washer 123 is screwed in. At this time, the distal end of the adjustment screw 122 is supported by the adjustment screw support hole 105, the washer 123 is supported by the adjustment screw support groove 104, and the guide portion 121a is guided by the wall surface without a slot. Is housed in the slot 103 in the correct attitude. In order to accommodate the saddle 12 in a stable posture, it is desirable for the slot 103 to have no more play than necessary with the guide portion 121a. When being accommodated in the slot 103, the movable piece 121 can be accommodated with its direction reversed. In this way, if it is turned over and accommodated, the range in which the octave adjustment can be performed can be expanded.

  The six slots 103 aligned in the longitudinal direction of the torso 101 support the saddle 12 according to the roundness of the neck, as high as the central slot 103 and as low as the outer slots 103. The height for supporting the saddle 12 is defined by the recessed portion 103 a provided on the side of the slot 103. The grooved portion 103a is not provided in the slot 103 in the central portion (the third and fourth strings of the guitar), and the upper surface of the trunk portion 101 is the upper edge of the slot. Therefore, in the saddle housed in the slot 103 in the central portion, the protruding portion of the locking portion 121 b is locked on the upper surface of the trunk portion 101. On the other hand, for slots other than the central part, the deeper the slot is, the deeper the slot is (that is, the first and sixth strings are deeper than the second and fifth strings), and the bottom of the bottom 103a is above the slot. It becomes an edge. Therefore, in the saddle housed in the slot 103 other than the central portion, the protruding portion of the locking portion 121b is locked at the bottom of the recessed portion 103a. As a result, the saddle 12 can be placed on the trunk 101 at the apex at the center corresponding to the third and fourth strings of the guitar, which is located at the apex of the roundness.

  As shown in FIG. 3, the extension part 102 includes a first extension part 102 a and a second extension part 102 b. The first extension 102 a has a top surface continuous with the top surface of the trunk 101. The second extending portion 102 b is provided to be separated from the first extending portion 102 a in the height direction of the bridge 1. The thickness of each of the first extending portion 102 a and the second extending portion 102 b may be set to a thickness (for example, about 1 to 2 mm) having sufficient rigidity. A slit (notch) 102c is formed between the first extending portion 102a and the second extending portion 102b. The width of the slit (that is, the distance between the lower surface of the first extending portion 102a and the upper surface of the second extending portion 102b) may be about 1 to 2 mm. A through hole 102d is provided to penetrate the first extending portion 102a and the second extending portion 102b in the height direction of the body portion 101 from the upper surface to the lower surface.

  The inner wheel 11 is accommodated in the slit 102c so that the through hole 102d and the screw hole 111 are coaxial. FIG. 5 is a perspective view of the inner wheel. The inner wheel 11 is a disk-shaped member, and a screw hole 111 screwed with the support 21 is provided at the center thereof. The thickness of the inner wheel 11 is formed to be slightly smaller than the gap between the first extending portion 102 a and the second extending portion 102 b. The side surface of the inner wheel 11 is provided with a knurl 112 which is an unevenness functioning as a nonslip. The outer diameter of the inner wheel 11 is such that the side surface slightly protrudes from the extending portion 102 when accommodated in the slit 102 c. As a result, it becomes possible to put a finger on the knurling 112 and turn the inner wheel 11, and it is possible to suppress a change in the appearance compared to a conventional bridge. Also, in order to fasten the inner wheel 11, the inner wheel can be turned with one hand without slippage and without the need for a special tool.

  In the bridge 1 configured as described above, with the saddle 12 attached to the slot 103 and the inner wheel 11 housed in the slit 102c, the support 21 provided on the body 20 of the guitar 2 is a through hole in the extension 102 102 d and the screw holes 111 of the inner wheel 11 are attached to the guitar 2. At this time, the screw hole 111 of the inner wheel 11 is screwed into the screw thread of the support 21, and the lower surface of the second extending portion 102 b abuts and is supported by the thumb wheel 22 screwed in advance in the support 21, Screw in the inner wheel 11. The bridge 1 can be fixed firmly to the body 20 by tightening the inner wheel 11 firmly. This makes it possible to prevent unnecessary resonances caused by the incomplete fixation of the bridge 1. Moreover, string vibration can be effectively transmitted to the guitar 2 main body. The absence of extra resonance makes it possible to fully utilize the sound and sustain that the guitar originally has. In addition, since the bridge 1 is mechanically fixed to the main body of the guitar 2, it is possible to accurately perform the adjustment of the string height, the adjustment of the string width, the adjustment of the string tension, and the like. On the other hand, when the inner wheel 11 is loosely tightened, the fixing force is weakened, and as in the case of using the conventional bridge 1, the inner wheel 11 can be fixed mainly by the tension of the strings 3. As described above, by changing the degree of tightening of the inner wheel 11, it is possible to selectively use the case where the bridge 1 is fixed to the main body of the guitar 2 and the case where the bridge 1 is not fixed.

  When the bridge 1 is attached to the guitar 2 in this manner, the position of the movable piece 121 of the saddle 12 is in the direction in which the string is stretched (the direction of the short side of the trunk 10 of the bridge 1) by turning the adjustment screw 122 It can be moved back and forth along, which enables adjustment of the length of the guitar 2 (adjustment of the octave pitch). At this time, a washer is provided between the movable piece 12 and the adjustment screw 122, and the washer 123 is instructed by the adjustment screw support groove 104 of the slot 103, so that the adjustment screw 122 can be smoothly turned. , You can prevent the adjustment screw from loosening.

  The present invention is not limited to the above embodiments. Each of the above-described embodiments is an exemplification, and any one having substantially the same configuration as the technical idea described in the claims of the present invention and having the same function and effect can be used. Also included in the technical scope of the present invention. For example, in the above embodiment, a tune-a- matic type guitar bridge has been described as an example, but the present invention is also applicable to bridges of other types of guitar bridges and other string instruments (such as bass).

DESCRIPTION OF SYMBOLS 1 bridge 10 bridge base 101 body part 102 extension part 102a 1st extension part 102b 2nd extension part 102c slit 102d through hole 103 slot 103a recessed part 104 adjustment screw support groove 105 adjustment screw support hole 11 inner wheel 111 screw hole 112 knurl 12 saddle 121 movable piece 121a guide portion 121b locking portion 121c screw hole 121d vertical surface 121e inclined surface 122 adjustment screw 123 washer 2 guitar 20 body 21 post 22 thumb wheel 23 tail piece 24 pickup 3 string

Claims (1)

A body provided with a plurality of slots arranged in the longitudinal direction;
Extension portions provided at both ends in the longitudinal direction of the body portion,
A first extension having a flat upper surface continuous with the upper surface of the body;
A second extension portion provided to be separated from the first extension portion in the height direction of the body portion;
A through hole penetrating the first extension and the second extension in the height direction of the body;
An extension comprising
An inner wheel which is formed in a disc shape having a screw hole at its center, and is accommodated in the gap between the first extension and the second extension so that the screw hole and the through hole are coaxial;
A plurality of saddles, each of which is accommodated in each of the plurality of slots so as to be adjustable in position in the short direction of the body, and in which a string is locked;
It is characterized in that it can be attached to a stringed instrument by screwing the inner wheel to the column while passing through the through hole a column provided on the main body of the stringed instrument and provided with an external thread screwed with the female screw of the screw hole. And a bridge.

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