JPH0216396Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an electric guitar. In the past, there were electric guitars that had strings, an electric signal generator that generates a signal according to the vibration of the strings, and the electric guitar body integrated into one body, but it is now possible to integrate the amplifier and speaker into the electric guitar body. There was nothing fixed. Therefore, in order to form an electric signal from the sound generated by playing the strings, amplify it, and reproduce it as a sound, an electric guitar, a separate amplifier, and a speaker are connected to the power source. These devices require a large amount of space and are difficult to move. Furthermore, even if the speaker is not housed in the body of an electric guitar, the middle part of the string, which is partially or entirely made of a ferromagnetic material such as iron, must be placed in the static magnetic field generated by the electric signal generator. It was necessary to house the signal generator in the body of the electric guitar, which corresponds to the middle part of the strings, and it was impossible to house a speaker of sufficient size in the body. Furthermore, as mentioned above, since the strings must be partially or entirely made of a ferromagnetic material such as iron, the range of sound quality of the electric guitar is limited based on the material of the strings. Therefore, this idea is an improvement on the above-mentioned conventional drawbacks, and uses an electrical signal generator that captures the vibrations generated by playing a string as tension fluctuations and generates an electrical signal according to this tension fluctuation. Accordingly, a string, an electric signal former, an amplifier,
It is an object of the present invention to provide an electric guitar in which a speaker etc. and an electric guitar main body are formed into one body. This invention will be explained below with reference to FIGS. 1 and 2. In the drawing, 1 is the electric guitar body, and the neck 1
It consists of a body 1b and a body 1b. 2, 2... are strings, and the locking ends 2a, 2a... are respectively connected to locking tools 3, 3...
... to an electric signal generator 4 fixed to the peripheral edge of the body 1b on the opposite side of the rod 1a, and its tip 2
A predetermined number of threads b, 2b, . Reference numeral 5 denotes an amplifier housed in an appropriate location in the electric guitar body 1 , and is used to amplify the signal generated from the electric signal generator 4 . Reference numeral 6 denotes a speaker fixed to the center of the body 1b, which reproduces the electric signal amplified by the amplifier 5 into sound. Reference numeral 7 denotes a power source housed at an arbitrary location in the body 1b. In addition,
Here, the principle of a condenser microphone is used as the electric signal generator 4 . Now, referring to FIG. 2, one of the strings 2 .
A pin 8 is fixed to the base end of a fixed piece 4a fixed to the peripheral edge of the body 1b on the opposite side of the shaft 1a, and the base end of the movable piece 4b is bent into an arc shape by the pin 8. The fixed piece 4a and the movable piece 4
A fixed electrode 4d and a movable electrode 4e are sandwiched between the fixed electrode 4d and the movable electrode 4e with an elastic dielectric material 4c made of rubber or the like interposed between them, and a resistor R9 and a power source E are connected between the fixed electrode 4d and the movable electrode 4e.
7 in series, the vibration of the string 2 is interpreted as a tension fluctuation, and an electric signal corresponding to this tension fluctuation is outputted from the output terminal 10 connected to both ends of the resistor R9. Moreover, as mentioned above, this electric signal generator 4 transmits the characteristics (the pitch of the sound) of the strings 2, 2... through the locking tools 3, 3... to the locking ends 2a, 2a... of each string, respectively. , timbre, etc.), the number of separate individual strings 4, 4, etc. is connected as many as the number of strings 2, 2, etc.
Next, although the explanation is omitted, the electric signal formers 4, 4...
..., the amplifier 5, the speaker 6, and the power source 7 as in the conventional case, except that the electric signal formers 4, 4, . . . are connected in parallel. Next, the operating principle of the above configuration will be explained. First, the elastic dielectrics 4c, 4c, . . . are charged from the power source E7 through the resistors R9, 9, . Next, when you play strings 2, 2..., strings 2, 2... vibrate,
In response to this vibration, the internal stress of the strings 2, 2, etc. varies. This variation in internal stress is caused by the locking end 2.
a, 2a, . . . to the locking members 3, 3, . . . fixed to the movable pieces 4b, 4b, . Now, the base ends of the rotating pieces 4b, 4b... are connected to the fixed pieces 4a, 4 through the pins 8, 8...
fixed pieces 4a4a... movable pieces 4b, 4b... between elastic dielectrics 4c, 4c.
Since the fixed electrodes 4d, 4d... and the movable electrodes 4e, 4e... are sandwiched together, the movable pieces 4b, 4b... rotate around the pins 8, 8... Fixed electrodes 4d, 4d..., and movable electrodes 4e,
The distance between the elastic dielectrics 4c and 4e varies, and the distance between the elastic dielectrics 4c and 4
By changing the capacitance of c..., the resistance R
Current flows through output terminals 10, 10...
An electric signal (voltage) corresponding to the vibration of the strings 2, 2, . . . is output. Next, this electrical signal is transmitted to amplifier 5.
The signal is amplified and reproduced as sound by the speaker 6. The movable piece 4b of the electrical signal generator 4 of this invention forms a lever with the pin 8 as a fulcrum and the point of force at the position where the locking device 3 of the string 2 is locked to the free end of the movable electrode 4e, so it is movable. The movable electrode 4e is pressed into contact with the piece 4b as a point of action, so that the vibration of the string 2 is magnified and intensified and transmitted to the elastic dielectric body 4c. As explained above, this idea captures the vibrations generated by playing a string as tension fluctuations that are magnified and amplified, and uses an electrical signal generator that generates an electrical signal in response to this tension fluctuation.
An electric signal former, an amplifier, a speaker, etc.
Since the electric guitar is integrated with the electric guitar main body, it does not require installation space for an amplifier or speaker and is easier to move than an electric guitar with the same performance as a conventional electric guitar. Further, there is no longer any restriction on the material of the string, such as the requirement that part or all of the string be made of a ferromagnetic material such as iron, as in the past.

[Brief explanation of the drawing]

Figure 1 is a perspective view of an electric guitar according to this invention.
FIG. 2 is a detailed diagram of the electrical signal generator in FIG. 1. 1 ... Electric guitar body, 2, 2... Strings, 4 ...
Electric signal former, 4a...fixed piece, 4b...movable piece, 4c...elastic dielectric, 4d...fixed electrode, 4
e...Movable electrode, 5...Amplifier, 6...Speaker.

Claims (1)

[Claims for Utility Model Registration] A movable piece bent in an arc shape is pivotally attached to the base end portion of a fixed piece whose base end is bent into an arc shape and is fixed to the peripheral edge of the trunk on the opposite side of the neck. A fixed electrode and a movable electrode with an elastic dielectric interposed between the fixed piece and the movable piece are sandwiched together, a resistor and a power source are connected in series between the two electrodes, and one end is stretched over the free end of the movable piece. This electric guitar is characterized by integrally comprising a signal former, an amplifier, a speaker, etc., which outputs the vibrations of the guitar as an electric signal, and a guitar body.