JPH0650095U - String instrument pickup device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a stringed instrument pickup device capable of improving the sound quality by improving the pickup accuracy and sensitivity and eliminating the need for troublesome mounting work. [Structure] Instrument body 2 in which metal strings 6a to 6f are stretched
The mount portion 11 is attached and fixed to. A body portion 10a having a magnet element 12 for converting the vibration of the metal strings 6a to 6f into a musical tone signal is attached to the mount portion 11, and the metal string 6a is provided between the mount portion 11 and the musical instrument body 2. A piezoelectric element 13 for converting the vibration of 6f into a musical tone signal via the musical instrument body 2 is provided. This constitutes the pickup device 10.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a pickup device which detects a vibration of a metal string of a string instrument using a metal string, for example, a plucked string instrument such as a guitar, and converts the vibration into an electric signal and outputs the electric signal. The present invention relates to a structure that can be improved to improve sound quality, and at the same time eliminates the need for troublesome mounting work.

[0002]

[Prior art]

 Generally, the pickup device used in stringed instruments detects the vibration of a metal string and converts it into a musical tone signal.The musical tone signal from this pickup device is reproduced as a musical tone from an audio device equipped with a primary amplifier and a speaker. I am trying to do it. As such a pickup device, conventionally, there is a magnet-type pickup in which a magnet element is arranged close to a metal string and a magnetic flux change of the magnet caused by the vibration of the metal string is converted into an electric signal. In addition, there is a piezoelectric pickup in which a piezoelectric element is fixed to the instrument body with adhesive tape or the like, and the vibration of the metal string is converted into an electric signal via the instrument body.

[0003]

[Problems to be solved by the device]

 By the way, in the above-mentioned pickup device, in order to improve the reproduced sound quality, it is required to have excellent pick-up accuracy and sensitivity of the original sound. However, the magnet type pickup used in the above-mentioned conventional pickup device has a problem that noise is easily introduced and pickup accuracy is low. In addition, the conventional piezoelectric pick-up has a problem in that it is difficult to obtain contact pressure and the pickup sensitivity is low because it is attached to the instrument body with adhesive tape or the like, and there is a limit in improving sound quality. is there. In addition, when the above-mentioned conventional piezoelectric element is fixed to the musical instrument body with an adhesive tape or the like, there is a problem that the mounting work is troublesome.

The present invention has been made in view of the above-mentioned conventional circumstances, and improves the sound quality by improving both the pick-up accuracy and the sensitivity, and the pick-up of a stringed instrument that does not require a troublesome pasting work. The purpose is to provide a device.

[0005]

[Means for Solving the Problems]

 In view of the above, the present invention is to mount the main body part in which a magnetic element for converting the vibration of the metal string into a musical tone signal is attached to the mount part, which is fixed to the main body of the musical instrument on which the metal string is stretched by the mount part. A pickup device for a stringed instrument, wherein a piezoelectric element for converting vibration of a metal string into a musical tone signal via the instrument body is disposed between the section and the instrument body.

[0006]

[Action]

 According to the pick-up device for a stringed instrument of the present invention, the mount portion is fixed to the main body of the musical instrument, and the main body portion in which the magnet element for converting the vibration of the metal string into a musical tone signal is arranged is attached to the mount portion. Since a piezoelectric element is placed between the instrument and the instrument body to integrate them, the musical signals picked up from these elements are combined and played back to eliminate the disadvantages of both elements and take advantage of their advantages. As a result, it is possible to improve the sound quality that has not been obtained in the past. That is, since the piezoelectric element can be fixed while being pressed against the instrument body by the mount part, the contact pressure can be made larger and more constant than when pasted with a conventional adhesive tape, etc. Can be improved. Further, in the present invention, since the piezoelectric element can be attached at the same time when the mount portion is attached to the main body of the musical instrument, the troublesome work of attaching with the adhesive tape can be eliminated, and the attaching work can be simplified accordingly.

[0007]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 are views for explaining a pickup device for a stringed instrument according to an embodiment of the present invention. In this embodiment, a case where a pickup device is incorporated in an acoustic guitar and the original sound of this guitar is reproduced by an audio device will be described as an example.

In the figure, reference numeral 1 is an acoustic guitar to which the apparatus of this embodiment is adopted. This guitar 1 has a neck 3 connected and fixed to a substantially gourd-shaped instrument body 2, and a finger board 4 is attached to the surface of the neck 3. It has a structure in which is attached. A string fixing part 5 is fixed to the musical instrument body 2, and metal strings 6a to 6f of 1st to 6th strings are arranged so as to extend between the string fixing part 5 and the head 3a of the neck 3. ing.

One end of each of the metal strings 6 a to 6 f is fixed by a string supporting portion 5 b via a saddle 5 a arranged on the string fixing portion 5. The other ends of the metal strings 6a to 6f are wound around the screw of the head 3a, and the metal strings 6a to 6f are tensioned by the screw in a tensioned state. Further, a circular sound hole 2a is opened in a portion of the musical instrument body 2 facing the metal strings 6a to 6f, whereby the vibration of the metal strings 6a to 6f resonates within the body 2. , The original sound of the guitar 1 is pronounced.

A pickup device 10, which is a feature of this embodiment, is provided in the sound hole 2a of the musical instrument body 2. The pickup device 10 is composed of a body portion 10a and a mount portion 11 made of a plate-shaped member made of wood, plastic, or the like. The body portion 10a is provided with a magnet element 12 as a hole piece, and a mount portion. A piezoelectric element 13 is arranged at 11.

The end portions 11a and 11b of the mount portion 11 are installed between the edge portions of the sound hole 2a, and the resin fastening portions 14 and 14 are respectively provided under the end portions 11a and 11b. It is arranged. Then, the edges of the sound hole 2a are sandwiched between the fastening members 14 and the ends 11a and 11b, and the edges are sandwiched by fastening the ends 11a and 11b and the fastening member 14 with screws 15. As described above, the pickup device 10 is fixed to the musical instrument body 2 by the mount 11.

The magnet element 12 is embedded in the main body portion 10a at a position facing the metal strings 6a to 6f. Each of the magnet elements 12 is a coil wound around a magnet, and is configured to detect a change in magnetic flux caused by the vibration of each of the metal strings 6a to 6f and output a tone signal corresponding to the vibration. ing.

A case 16 covering an electric circuit component (not shown) is attached to a lower portion of the main body 10a, and a cable connected to the magnet element 12 via the circuit component is attached to the case 16. One end of the cable 17 is inserted, and the other end of this cable is connected to a connector 18 mounted on the rear part of the instrument main body 2.

A piezoelectric element 13 is arranged between the lower surface of the one end 11 a of the mount section 11 and the edge of the sound hole 2 a. The piezoelectric element 13 is formed on the lower surface of the mount section 11. It is accommodated in the recess 11c. A sponge member 19 is provided between the bottom surface of the recess 11c and the piezoelectric element 13, and a rubber cushion member 20 is provided between the piezoelectric element 13 and the edge of the sound hole 2a. Has been done. As a result, the piezoelectric element 13 is pressed against the musical instrument body 2 with a predetermined contact pressure by the fastening force of the screw 15 when mounting the mount 11. Further, a wavy protrusion 20a is formed on the outer surface side of the cushioning member 20, and a uniform contact pressure is obtained by the protrusion 20a. The protrusion may have a stripe shape, a groove shape, or a flat shape. If formed on the protrusion, the pickup sensitivity can be further improved.

The piezoelectric element 13 has a vibrating electrode formed on a ceramics substrate. This vibrates the metal strings 6a to 6f and is transmitted to the musical instrument body 2, and the resonance vibration generated thereby is detected. It is configured to output a tone signal corresponding to the vibration. Moreover, one end of a lead wire 21 is connected to the piezoelectric element 13, and the other end of the lead wire 21 is inserted into the case 16 and connected to a connector 22 mounted on the rear portion of the musical instrument body 2. ing.

Next, the audio system of this embodiment will be described. First, the pickup device 10 of the acoustic guitar 1 is connected to the audio device 25 shown in FIG. The audio device 25 includes, for example, a preamplifier 26, an effector 27, a pre-main amplifier 28, and a pair of speakers 29. The original sound of the acoustic guitar 1 is converted into a musical sound signal by the pickup device 10, and the musical sound signal is amplified by the preamplifier 26. Then, the sound is reproduced from the speaker 29 through the effector 27 and the main amplifier 28.

Further, according to the present embodiment, since the musical tone signals picked up from both the magnet element 12 and the piezoelectric element 13 are synthesized and reproduced, it is possible to reproduce the tone color as it is, which is difficult in the past. Excellent sound quality can be obtained. That is, since the piezoelectric element 13 is pressed against the musical instrument body 2 by the fastening force of the screw 15 when mounting the mount portion 11, the contact pressure can be increased and kept constant, and the detection sensitivity of resonance vibration can be improved accordingly. . As a result, both pickup accuracy and sensitivity can be improved, and the sound quality can be improved accordingly. In this case, in this embodiment, since the piezoelectric element 13 is pressed through the cushioning member 20, the contact pressure can be made uniform and the pickup sensitivity can be further improved.

In addition, in this embodiment, the pick-up device 10 is mounted on the musical instrument main body with the piezoelectric element 13 mounted on the mount portion 11 for fixing the main body portion 10 a incorporating the magnet element 12 to the musical instrument main body portion 2. Attached to part 2. As a result, it is possible to eliminate the troublesome work of separately mounting the piezoelectric element 13 with the conventional adhesive tape, and to simplify the mounting work. Here, in the present embodiment, since the structure in which the piezoelectric element 13 is built in the mount portion 11 in which the magnet element 12 is incorporated in advance is adopted, the conventional product can be used as it is, and the parts can be shared. The cost increase can be suppressed.

In the above embodiment, the case where the pickup device 10 is attached to the acoustic guitar 1 has been described as an example, but the present invention is not limited to this, and for example, in a stringed instrument such as an electric guitar or an electric bass. It can also be applied to a pickup device, and in this case, the same effect as that of the above embodiment can be obtained. Further, the piezoelectric elements 13 may be arranged at a plurality of places of the mount portion 11 to further improve the sound quality.

Further, in the above embodiment, the case where the mount portion 11 is fixed to the sound hole 2a with the screw 15 is taken as an example, but the fixing means of the present invention is not limited to this. It may be fixed with a screw, a fitting member, or the like, or may be directly attached to the musical instrument body 2. Also, the pickup device 10 has been described as an example in which the main body portion 10a and the mount portion 11 are integrally formed. It may be one.

[0021]

[Effect of device]

 As described above, according to the stringed instrument pickup device of the present invention, the mount portion is fixed to the instrument body, the magnet element is disposed on the mount portion, and the piezoelectric element is provided between the mount portion and the instrument body. Since it has been installed, it has the effect of improving both pick-up accuracy and sensitivity to improve the sound quality, and also has the effect of eliminating the need for laborious sticking work.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a pickup device for a stringed instrument according to an embodiment of the present invention.

FIG. 2 is a view showing a mounting state of a mount portion of the above embodiment.

FIG. 3 is a perspective view showing the acoustic guitar of the above embodiment.

FIG. 4 is a schematic configuration diagram showing an audio system of the embodiment.

[Explanation of symbols]

 1 Acoustic Guitar (Stringed Instrument) 2 Instrument Main Body 6a to 6f Metal String 10 Pickup Device 10a Main Body 11 Mount Part 12 Magnet Element 13 Piezoelectric Element

Claims (1)

[Scope of utility model registration request] 1. A body part, which is fixed to a body of a musical instrument on which a metal string is stretched by a mount part, and in which a magnet element for converting vibration of the metal string into a musical tone signal is mounted, is mounted on the mount part. Between the section and the instrument body,
A pick-up device for a stringed instrument, comprising a piezoelectric element for converting vibration of a metal string into a musical tone signal via a musical instrument body.