JP2004163717A - Electronic stringed musical instrument in which exchange of pickup is easy - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic stringed musical instrument whose stretched strings do not need to be removed when pickups are exchanged. <P>SOLUTION: In the electronic stringed musical instrument, the body 1 of the electronic musical instrument, such as electronic guitar is divided into two bodies at the position separated a little from string adjusting places so that the separated body becomes parallel with strings 2 and two bodies are attached by hinges with each other on the rear faces of the bodies and the two bodies are constituted to be freely opened and closed by providing fastening metallic parts on surfaces of the bodies and concave depressed parts 8 whose upper faces are opened towards string stretched places are formed in the body of a string stretched side so as to intersect perpendicularly with a string stretched direction from the divided end face. Moreover, a guide groove 9 which is closely engaged with a slide plate 6 on which a pickup 5 is mounted to be freely slidable is formed in the inner peripheral part of the upper edge of each concave depressed part and electricity conduction plates 7 to which wiring pulled out from the pickup 5 are stopped and connected are provided on the under surface of the fornt edge part of the slide plate 6 and connecting terminals 10 which can be brought into contact with electricity conduction plates 7 and which are finally connected to an amplifier are provided at the guide group of the inner end of the concave depressed part 8 in the guide groove 9. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an electronic stringed musical instrument in which a pickup attached to a body of an electronic stringed instrument represented by an electric guitar can be easily and easily replaced.
[0002]
[Prior art]
The pickup picks up vibration of a string and converts it into an electric signal, and is an important component that determines the tone of an electronic stringed instrument such as an electric guitar, an electric bass, and an electronic violin. This pickup is formed by winding a coil around a magnet and connected to an amplifier (amplifier) to amplify an induced current corresponding to a string vibration, which is output as a loud sound from a speaker.
[0003]
Since the pickup is located between the string and the body and its wiring is soldered, when replacing the pickup with another one to change the tone conventionally, first remove all the strings and then screw on the body Remove the screw at the stop, remove the soldered part of the connection wiring to the amplifier, take out the old pickup, and install the new pickup in the reverse order.
As described above, the replacement of the pickup has conventionally required a lot of trouble and time, and specialized technology has been required.
[0004]
[Problems to be solved by the invention]
According to the present invention, it is not necessary to remove the string that is stretched at the time of replacement of the pickup, and furthermore, the pickup part is made into a unit, and this is simply attached to the body of an electric guitar or the like, so that the terminal reaching the amplifier can be obtained. The present invention proposes an electronic string instrument such as an electric guitar and the like, in which the pickup is very easy to replace, in which the wiring is completed by contact with the electric guitar and the work such as soldering is completely unnecessary.
[0005]
[Means for Solving the Problems]
In the present invention, first, the body is divided into two parts in a direction parallel to the strings at a position slightly apart from the place where the strings of the body of the electric guitar or the like are stretched, and the vertically divided bodies are hinged to each other on the back side. In the meantime, a fastener such as a buckle is attached to the front side of the body so that when the guitar is used, the two divided bodies can be fixed in an abutting state.
[0006]
Then, a concave portion having a predetermined length and depth for accommodating the pickup is formed in the body portion on the side where the string is stretched so as to be orthogonal to the direction in which the string is stretched from the divided end surface, and the concave portion is formed. A guide groove is recessed all around the upper edge, and a thin tongue whose tip is bent downward and is fixed to the inner end face of the recess is located in the guide groove at the upper edge of the recess. Are connected. This connection terminal is connected to the wiring leading to the amplifier.
[0007]
On the other hand, the pickup is fixed to a slide plate. The left and right side edges of the slide plate are configured to fit tightly and slidably in the left and right guide grooves at the upper edge of the body recessed portion, and the front lower surface of the plate has a number of copper corresponding to the connection terminals. A conductive plate such as a piece is adhered, and the wiring drawn from the pickup is connected to the conductive plate, thus forming one pickup unit.
[0008]
As a result, the slide plate of the new pickup unit is inserted into the left and right guide grooves at the upper edge of the concave portion of the opened body and is slid to the far end. The connection is completed by contacting the connection terminal in the groove. Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
1 and 2 show an electric guitar to which the present invention is applied. Reference numeral 1 denotes a body, and the body 1 is parallel to the string 2 at a position slightly apart from a place where the six metal strings 2 are stretched. The bodies 1a and 1b which are completely divided into two parts and which are separated in the longitudinal direction are hinged to each other by a hinge 3 on the back side thereof, and one body 1b can be turned about 180 ° from the abutting state with respect to the other body 1a. It has become. Reference numeral 4 denotes a fastener such as a buckle, which is composed of a hook 4a and a fastener 4b attached near the front abutting portion of the divided bodies 1a and 1b. When the guitar is used, the fastener 4 brings the two bodies 1a and 1b into an abutting state. (See FIG. 5).
[0010]
Numeral 5 is a pickup for determining the tone of a guitar which is provided immediately below the string 2 stretched on the body 1 so as to be perpendicular to the string 2. The pickup 5 is shown as a set of two strings in FIG. Although a type in which a total of four pickups are installed at two locations in the front and rear directions is shown, there are cases where only one pickup 5 is provided, and where one pickup 5 is attached one by one (two in total) before and after.
[0011]
The pickup 5 is attached to a large central opening of a rectangular slide plate 6 made of a hard resin, and wiring drawn out from the pickup 5 is attached to the front end of the lower surface of the plate 6 with two or three sheets attached at intervals. One pickup unit 14 is electrically connected to a thin conductive plate 7 such as a copper piece by soldering or screwing (see FIG. 3).
[0012]
Reference numeral 8 denotes a recess formed in a rectangular shape so as to be orthogonal to the direction in which the string is provided, from an end surface on the split side of the body 1a on which the string is provided in order to mount the pickup unit 14 on the body, and the recess 8 is opened. The upper surface is slightly smaller than the size of the slide plate 6, has a length up to a position slightly passing from the string 2 extending position, and has a depth sufficient to mount the pickup unit.
[0013]
A guide groove 9 (9a, 9b, 9c) is formed on the inside of the upper edge portion of the concave portion 8 over the entire circumference (that is, three sides excluding the divided side end surface), and the left and right guide grooves 9a, 9b are provided with the above-mentioned slide. The guide groove (fitting groove) 9c at the far end is fitted with the leading edge of the plate 6 (see FIG. 2). 2).
[0014]
Note that the recess 8 is provided at two predetermined positions immediately before and after the string 2 since the concave portion 8 is provided at two places in the embodiment diagram where the pickup unit 14 is mounted. In some cases, one or three locations may be provided.
[0015]
The guide groove 9 at the upper edge of the recess 8 is formed with a step around the entire upper edge when the recess 8 is formed in the wooden body, for example. It can be configured by forming an opening of the same size as the upper surface of the recess 8 so as to cover the step from above with a decorative plate 15 such as a plate or a resin plate (see FIG. 4).
[0016]
A thin tongue-shaped connection terminal whose tip is bent downward and is screwed to the back end of the recess 8 is provided in the guide groove 9c at the upper edge of the recess 8. The conductive plate 7 is mounted at a plurality of intervals corresponding to the conductive plate 7 on the back surface of the front end of the slide plate 6, and corresponds when the leading edge of the slide plate 6 is fitted into the guide groove 9 c at the back end of the recess 8. And are electrically connected by pressing vertically. Each connection terminal 10 is finally electrically connected to an external amplifier via a wiring in the body 1a (not shown).
[0017]
Reference numeral 11 denotes a pickup selection switch, reference numeral 12 denotes a volume control knob, and reference numeral 13 denotes a jack for connecting to a plug from an external amplifier.
[0018]
When the pickup 5 is replaced, the entire pickup unit 14 including the slide plate 6 is replaced, and many kinds of such units 14 are prepared. Then, first, the fastener 4 is removed and the body 1 is opened, and the unit to be replaced (one or both units in the figure) slides the slide plate 6 in the left and right guide grooves 9a and 9b of the concave portion 8. Pull out.
[0019]
Next, a new pickup unit 14 is inserted into the left and right guide grooves 9a and 9b from the divided end faces of the body 1a on the right and left sides of the slide plate 6, and slid to the far end. The front edge of the slide plate 6 is fitted and abutted in the guide groove 9c at the upper edge of the concave portion 8 (see FIG. 4).
[0020]
Then, the bodies 1a and 1b that were opened last are closed, and the body 1 is fixed again with the fastener 4 so as not to open (see FIG. 5).
[0021]
As a result, the wiring of the pickup 5 of the newly replaced pickup unit 14 is completed by the press contact between the conductive plate 7 on the lower surface of the front end of the slide plate 6 and the corresponding connection terminal 10 in the corresponding guide groove 9c at the back end of the recess 8. is there.
[0022]
【The invention's effect】
The electronic stringed musical instrument of the present invention is configured as described above, and when exchanging the pickup for changing the tone, etc., it is not necessary to remove the string that is stretched or to remove various parts, and the electronic stringed musical instrument is divided into two parts. Anyone can easily replace it by simply opening the body, inserting and removing the unit with the pickup attached, without having to ask a specialized technician.
[0023]
Moreover, according to the present invention, the wiring of the pickup is completed only by inserting and mounting the pickup unit in the body, and the need for soldering wiring as in the related art is eliminated, so that the pickup can be replaced in a very short time. And the like.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a state in which a two-part body of an electronic stringed musical instrument according to the present invention is opened.
FIG. 2 is a perspective view showing a state where a pickup unit is detached for replacement.
FIG. 3 is a perspective view of the pickup unit as viewed from below.
FIG. 4 is a cross-sectional view showing a connection state between the pickup unit and a connection terminal on the body side.
FIG. 5 is a perspective view showing a state in which replacement of the pickup is completed and the body is closed.
[Explanation of symbols]
1-body 2-string 3-hinge 4-clamp 5-pickup 6-slide plate 7-conductive plate 8-recess 9-guide groove 10-connection terminal 11-pick-up selection switch 12-volume control knob 13-jack 14-pickup unit 15-decorative board 16-neck

Claims (3)

The body of an electronic stringed instrument such as an electric guitar is divided into two parts so as to be parallel to the strings at a position slightly away from the string adjustment part, hinged to each other on the back side of the body, and provided with a fastener on the surface of the body so that it can be opened and closed freely, The body on the string-stretching side is formed with a recessed part whose upper surface is opened from the divided end face toward the string-stretching portion so as to be orthogonal to the string-stretching direction. A guide groove is provided for tightly and slidably fitting to the slide plate on which the pickup is mounted, and the guide groove is provided with a connection terminal capable of contacting the wiring from the pickup by fitting to the slide plate. An electronic stringed instrument with easy pickup replacement. On the lower surface of the front end of the slide plate, there is provided a conductive plate to which the wiring drawn from the pickup is fixed, and in the guide groove at the inner end of the concave portion, the guide groove at the inner end of the concave portion can be pressed against the conductive plate. The electronic stringed musical instrument according to claim 1, further comprising a connection terminal. 3. The electronic stringed instrument according to claim 2, wherein said connection terminal is finally electrically connected to an amplifier.

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