JPH0660899U - Electro acoustic guitar - Google Patents

Abstract

(57) [Summary] [Structure] In an electro-acoustic guitar with a saddle (1) supporting a steel string (5) and a pickup (2) attached to the lower part, the contact surface of the saddle with the steel string and the contact surface with the pickup. Conductive materials (1a) and (1
formed in c). [Effect] It is possible to realize a guitar that can easily take measures against noise regardless of the difference in the mounting structure of the bridge. Moreover, it is possible to create a desired tone color by changing or combining the materials forming the saddle.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improved electroacoustic guitar, and more particularly, to an electroacoustic guitar that removes the influence of noise induced by a guitar amplifier, a lighting device, or the like.

[0002]

[Prior art]

 There are two types of electro-acoustic guitars (hereinafter referred to as guitars) depending on the bridge forming means. First, as shown in Fig. 3, the bridge is integrally molded with the guitar body, and the strings are fixed with bridge pins (4). The other is to attach the bridge after the guitar body is completed and hook the ball end (6) to the rear of the bridge (12) as shown in FIG. By the way, in these guitars, the electromagnetic waves emitted from the power supply section of the guitar amplifier (10) are guided to the output line (7) connected to the pickup, the preamplifier (not shown), etc., and become noise and go out of the guitar amplifier. Sometimes. In order to eliminate this noise, it is necessary to securely shield each wire with terminals. Therefore, in the type of guitar shown in Fig. 4, a plate-shaped ground terminal (13) electrically connected to the ground wire (14) is provided at the rear end of the bridge, and a ball end (6) is provided on the surface of the steel string. A means to escape the noise component is adopted by making a strong contact by using the tension of and making contact with the player's finger through the steel string (5).

[0003]

[Problems to be solved by the device]

 It is possible to install a plate-shaped ground terminal near the string insertion hole (3a) on the bottom of the bridge to prevent noise from the type shown in Fig. 3, but all six ball ends should be connected to the ground terminal surface. It is difficult to make strong contact with and to ensure reliable conduction. Moreover, depending on the direction of the ball end, it may not come into contact. In addition, such work is difficult to achieve in terms of production efficiency and production cost. And above all, electroacoustic guitars are often made by modifying existing acoustic guitars, so it is not possible to make such modifications to the one in which the bridge and the guitar body are integrally molded.

[0004]

[Means for Solving the Problems]

 The present invention provides a guitar capable of removing noise without specially attaching a ground terminal. The configuration is that the saddle is made of a conductive material.

[0005]

[Action]

 By forming a conductive material between the surface of the saddle that contacts the steel string and the surface that contacts the pickup, the ground of the pickup and the steel string are electrically connected via the saddle, and are grounded to the human body through the fingers of the performer. can do. Therefore, it is possible to remove noise without attaching a ground terminal.

[0006]

【Example】

 FIG. 1 is a cross-sectional explanatory view of a bridge portion of a guitar according to the present invention. (1) is a saddle that supports the steel string (5), (2) is a pickup that detects the vibration of the string through the saddle and converts it into an electric signal, (3) is a bridge, and (4) is a string. A bridge pin to prevent the plug from being pulled out, (6) a ball end attached to the tip of the string, (7) an output line that outputs the electric signal output from the pickup to the output terminal (8) provided on the guitar body, (9) shows the input terminal on the side of the guitar amplifier (10), and (14) shows the ground line. The outer skin of the pickup (2) and the ball end (6) are made of a conductive material.

As shown in FIG. 2, the saddle (1) has a conductive member (1 b) interposed in the center of a non-conductive bone member (1 a) and has electrical conduction with the conductive member (1 b) at the bottom thereof. It is formed by attaching the conductive member (1c). The skeleton member (1a) is made of wood, a synthetic resin or the like, and the conductive member (1b) and the conductive member (1c) are made of a conductive material such as copper or aluminum. The tip of the conductive member (1b) slightly protrudes from the surface of the bone member (1a) or is formed so as to be flush with the surface of the bone member (1a) so as to come into contact with the steel string when supporting the steel string (5). I am This contact part is strongly pressed by the tension of the steel string, so that the conduction is ensured. Also, if a preamplifier is provided, the noise generated in the preamplifier can be removed by sharing the ground of the preamplifier with the pickup. In this way, even if the ground terminal is not attached, the ground of the pickup and the strings are conducted through the saddle, so noise induced in the high-impedance circuit part of the pickup, preamplifier, etc. is passed through the human fingers through the human body. You can escape to.

The conductive member (1b) and the conductive member (1c) may be integrally molded. Further, a saddle may be formed by alternately stacking a plurality of bone members and conductive members, or the entire saddle may be formed of a conductive material such as carbon or metal.

Furthermore, it is possible to change the timbre by combining various materials for forming the saddle.

The structure of each saddle can be used not only for the guitar shown in FIG. 4 but also for other guitars as long as the guitar has a pickup attached to the lower part of the saddle.

[0011]

[Effect of device]

 By using the present invention, it is possible to realize a guitar that can easily take measures against noise regardless of the difference in the mounting structure of the bridge. Moreover, it is possible to create a desired timbre by changing or combining the materials that form the saddle.

[Brief description of drawings]

FIG. 1 is a cross-sectional explanatory view of a bridge portion of a guitar according to the present invention.

FIG. 2 is an explanatory view of a saddle of a guitar according to the present invention.

FIG. 3 is an explanatory diagram of a guitar that stops a string with a bridge pin.

FIG. 4 is an explanatory diagram of a guitar in which a string is hooked on a rear end of a bridge and stopped.

[Explanation of symbols]

1 ・ ・ Saddle 1a ・ ・ Bone member 1b ・ 1c ・ ・ Conductive member 2 ・ ・ Pickup 3 ・ ・ Bridge 3a ・ ・ String insertion hole 4 ・ ・ Bridge pin 5 ・ ・ Steel string 6 ・
・ Ball end, 7 ・ ・ Output line, 8 ・ ・ Output terminal, 9 ・
・ Input terminal, 10 ・ ・ Amplifier, 11 ・ ・ Saddle, 12 ・
・ Bridge, 13 ・ ・ Ground terminal, 14 ・ ・ Ground wire.

Claims (2)

[Scope of utility model registration request] 1. An electro-acoustic guitar having a pickup attached to a lower portion of a saddle supporting a steel string, wherein the contact surface of the saddle with the steel string and the contact surface of the pickup are made of a conductive material. An electro-acoustic guitar. 2. The electro-acoustic guitar according to claim 1, wherein the saddle includes a non-conductive member and a conductive member that electrically connects the steel string and the pickup.