JPH0733278Y2 - Pickup device for electric stringed instruments - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The pickup device according to the present invention outputs a low-noise electric signal when the connection state of three coils is selected by a changeover switch to function as a single coil pickup or as a humbucking pickup. It is what is generated.

[Field of Industrial Application] The present invention relates to a pickup device for an electric musical instrument, and more particularly to a pickup device.
The present invention relates to an electric guitar pickup device capable of switching the connection state of two coils to function as a single coil pickup or a humbucking pickup.

[Prior Art] Conventionally, as an electric guitar pickup device of this type, for example, one disclosed in Japanese Utility Model Laid-Open No. 53-26921 is known. A pickup device for an electric guitar disclosed in this publication will be first described as a conventional example.

The pickup device for an electric guitar disclosed in Japanese Utility Model Publication No. Sho 53-26921 has two coils connected in series.
It has a switch that functions only one of the two coils and bypasses the other, and when it functions as a humbucking pickup, the switch is turned on to cause the two coils to function together and generate on the string. Converts mechanical vibrations to electrical signals. On the other hand, when the pickup device is made to function as a single-coil pickup, the switch is turned off and one of the two coils is turned on.
Only the book is made to function and the mechanical vibration generated in the string is converted into an electric signal.

[Problems to be Solved by the Invention] However, in the above-described conventional electric guitar pickup device, only one of the two coils is bypassed to form a single-coil pickup. When it functions as a pickup, there is a problem that high noise peculiar to a single coil pickup occurs.

Therefore, it is an object of the present invention to provide a pickup device of a single type capable of generating a musical sound with less noise, whether it functions as a single coil pickup or a humbucking pickup.

[Means for Solving the Problems] The present invention is a pickup device for an electric stringed instrument that converts mechanical vibration generated in a string of an electric stringed instrument into an electric signal representing the mechanical vibration, and is wound in one direction. A first coil magnetized in a predetermined direction, a second coil wound in a direction opposite to the one direction and magnetized in a direction opposite to the predetermined direction, and a non-magnetized coil wound in the one direction No. 3 coil and a changeover switch, and the operation of the changeover switch switches between a state in which the first coil and the second coil are connected and a state in which the second coil and the third coil are connected. The gist is what was made possible.

[Advantages and Effects of the Invention] In the pickup device for an electric stringed instrument according to the above configuration, the player operates the changeover switch to select the state in which the first coil and the second coil are connected, in order to generate rich middle and low notes. Then, the pickup device functions as a humbucking pickup. Therefore, when the performer struts,
The pickup device converts the mechanical vibration generated in the strings into an electric signal by the first coil and the second coil, and outputs the electric signal. As a result, it is possible to generate powerful and rich mid- and low-pitched tones.

On the other hand, when the changeover switch is operated to select the state in which the second coil and the third coil are connected, the pickup device according to the present invention functions as a single coil pickup. Therefore, when the performer struts, the second coil detects mechanical vibration generated in the string to generate an electric signal, and then the third coil removes a noise component from the electric signal to generate an electric signal. To form. Therefore, it is possible to generate a high-pitched sound with less noise based on the electric signal.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a circuit diagram showing an electric circuit according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a configuration of the embodiment. In the figure,
Reference numeral 1 denotes a pickup device attached to the body of an electric guitar. The pickup device 1 includes a first coil 2 and a second coil 3, which are opposite to each other in a magnetizing direction and a winding direction.
5 and a non-magnetized third coil wound in the opposite direction of the second coil 5.
And a coil 7. The second coil 5 can be selectively connected to the first coil 3 or the third coil 7 via the changeover switch 9, and the third coil 7 is connected to the buffer amplifier 11. The second coil 5 and the buffer amplifier 11 are selectively connected to the output terminal 15 via the switch 13,
The change-over switches 9 and 13 operate in conjunction with each other. That is,
When the changeover switch 9 connects the first coil 3 to the second coil 5, the switch 13 outputs the second coil 5 to the output terminal.
Connect to 15. On the other hand, when the changeover switch 9 connects the second coil 5 to the third coil 7, the buffer amplifier
11 is connected to the output terminal 15 via the switch 13. Second
In the figure, 17 is a cover and 19 is a substrate of the buffer amplifier 11.

Next, the operation of the embodiment will be described. First, the player operates the changeover switch 9 in order to generate rich middle and low tones,
When the first coil 3 and the second coil 5 are connected, the pickup device functions as a passive humbucking pickup. Further, the switch 13 works in conjunction with the changeover switch 9 to connect the second coil 5 to the output terminal 15. Therefore, when the performer struts, the mechanical vibration generated in the string is converted into an electric signal by the first coil 3 and the second coil 5, and is output from the output terminal 15 without passing through the buffer amplifier 11. . Since such an electric signal contains only a slight noise component, the musical tone generated based on this electric signal is a powerful and rich middle and low tone with less noise peculiar to the humbucking pickup.

On the other hand, the changeover switch 9 is operated to operate the second coil 5
When the third coil 7 and the third coil 7 are connected, the switch 13 interlocked with the changeover switch 9 causes the buffer amplifier 11 to output the output terminal 15
Connect to. As a result, the pickup device 1 functions as an active type (low impedance type) single coil pickup. Therefore, when the performer pitches, the second coil 5 detects the mechanical vibration generated in the string to generate an electric signal, and then the third coil 7 removes a noise component from the electric signal. Then, it is output from the output terminal 15 via the buffer amplifier 11. A musical tone generated based on such an electric signal includes a sharp high tone peculiar to a single coil pickup, and since the noise component is removed by the third coil 7, it becomes a musical tone with less noise.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing an electric circuit of an embodiment of the present invention, and FIG. 2 is a perspective view showing a configuration of an embodiment of the present invention. 3 ... 1st coil, 5 ... 2nd coil, 7 ... 3rd coil, 9 ... Changeover switch, 13 ... Switch, 11 ... Buffer amplifier.

Claims (1)

[Scope of utility model registration request] 1. A pickup device for an electric string instrument which converts mechanical vibration generated in a string of an electric string instrument into an electric signal representing the mechanical vibration, wherein the first string is wound in one direction and magnetized in a predetermined direction. A coil, a second coil wound in a direction opposite to the one direction and magnetized in a direction opposite to the predetermined direction, a non-magnetized third coil wound in the one direction, and a changeover switch, And a state in which the first coil and the second coil are connected to each other and a state in which the second coil and the third coil are connected to each other by operating the changeover switch. Pickup device for stringed instruments.