JPH05173559A - Stringed musical instrument - Google Patents

Abstract

PURPOSE:To facilitate the assembling operation of a stringed musical instrument main body and also make its replacing operation easy by fitting the stringed instrument main body detachably with a string support constitution body equipped with a string support fixation part, a pickup means, and a circuit board. CONSTITUTION:The string support constitution body 8 is a molding of synthetic resin; and a string support part 44, a string fixation part 45, a fitting part 47 for a string vibration suppression member (damper) 46, a fitting part 49 for a spring fixation member 48 for fixing a coil spring 7 anchored to respective strings 6a-6f, and a fitting part 51 for an electromagnetic pickup 50 as the pickup means are formed on the top surface side and a fitting part 53 for the circuit board 52 is formed on the reverse surface side. When the stringed instrument main body is assembled, the electromagnetic pickup 50 and circuit board 52 are assembled only by fitting the string support constitution body 8 to a drum part 2 with a bolt 73. Even in case of a fault, only the string support constitution body 8 is only detached without detaching other components fitted to the drum part 2 to enable easy and simple replacement, etc.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stringed instrument that produces a predetermined tone based on the string vibration of a picked string.

[0002]

2. Description of the Related Art There are various types of string instruments that produce a predetermined musical sound based on the string vibration of a picked string, depending on the method of processing an electric signal obtained by picking up the string vibration. Pitch extraction method (see, for example, Japanese Patent Application No. 61-286745), string trigger method (see, for example, Japanese Utility Model Application No. 61-145197),
An ultrasonic system (see, for example, Japanese Patent Laid-Open No. 62-99790) and, in addition to this, a so-called electric guitar or electric guitar are known.

[0003]

In any of these types of string instruments, in order to generate a predetermined musical sound based on the string vibration of the picked string, the string vibration of the picked string is used. Means for detecting electric current as an electric signal (generally an electromagnetic pickup)
And the electric signal detected by the pickup means (hereinafter, sometimes referred to as “pickup signal”) itself,
Amplify the signal as it is, and make the pickup signal sound as a predetermined musical tone, or after subjecting the pickup signal to the required processing,
Produce as a predetermined tone (above, in the case of so-called electric guitar or electric guitar), or produce a tone having a tone color different from the pickup signal based on the pickup signal (pitch extraction method, string trigger method) , An ultrasonic circuit) and an electric circuit for performing electrical processing are essential elements. Then,
The pickup means and the circuit board forming a predetermined circuit are generally arranged around the string support where one end of the string of the string instrument body is supported, but conventionally, the pickup means and the circuit board are the string instrument body. It is structured such that it is attached to the main body of the stringed instrument in a state separate from the string support portion provided in. Therefore, in the case of such a conventional structure, the string supporting portion, the pickup means, and the circuit board are naturally attached in different steps when assembling the main body of the stringed instrument, which is a drawback that the assembly work of the main body of the stringed instrument becomes complicated. there were. Further, in the case of such a structure, if a failure occurs in the pickup means or the circuit and the replacement is required, only the pickup means or the circuit board to be replaced cannot be removed from the main body of the stringed instrument, and the main body of the stringed instrument cannot be removed. There is also a problem that it is often necessary to remove other parts attached to the device, and therefore the work of replacing the pickup means and the circuit board is very troublesome. On the other hand, among stringed instruments of this type, for example, in the case of stringed trigger type and ultrasonic type stringed instruments, musical tones of various timbres are produced based on the pickup signal from the pickup means, but this is not necessary. In order to prevent a musical sound not intended by the player from being generated due to the string vibration, it is necessary to suppress the string vibration within a short time immediately after the string is picked. .. However, in the case of the conventional stringed instrument, there has not been a stringed instrument that adopts a configuration that suppresses the string vibration in a short time immediately after the string is picked.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to simplify the assembling work of the main body of the stringed instrument and to replace the picking means and the circuit when the circuit fails. Is to provide a stringed instrument that is configured to be easy to perform. Further, another object of the present invention is that, immediately after the strings are picked,
An object of the present invention is to provide a stringed musical instrument having a configuration capable of suppressing string vibration in a short time.

[0005]

In order to solve the above-mentioned problems, a stringed instrument according to the present invention supports and fixes at least one string stretched on a stringed instrument body and at least one end of the string. String support means detachably mounted on the string instrument body for detecting the vibration of the string instrument, and detachably mounted on the string support means for detecting the vibration of the string and outputting an electric signal corresponding to the detected vibration. And an electronic signal for performing electrical processing for controlling a musical sound to be generated, on the electric signals detected by the string vibration detecting means and the string vibration detecting means detachably attached to the string supporting means. And processing means. It is preferable that the stringed instrument further includes string vibration damping means for damping the vibration of the string in the vicinity of the string vibration detection means. Further, it is preferable that the string vibration damping means is detachably attached to the string supporting means. The string instrument is
Further, the string is inserted, one end is removably attached to the string supporting means, the other end is attached to the outer periphery of the string, and a flexible ring that follows the movement of the inserted string. It is preferable that the magnetic member of It is preferable that the string is made of a non-magnetic material, and the magnetic member is formed by winding a wire made of a magnetic material in a coil shape. Further, it is preferable that the string is made of a magnetic material, and the string vibration detecting means is an electromagnetic pickup device. Further, the string support means includes a body detachably attached to the string instrument body, a string support portion formed on the body so as to support one end of the string, and the string support portion in cooperation with each other. It is preferable to have a fixing portion for fixing one end of the string. Further, it is preferable that a board mounting portion is formed on a surface of the string supporting means on the main body side of the string instrument, and the electronic processing means is mounted on the board mounting portion. Further, it is preferable that the stringed instrument further includes a musical tone generating unit that is provided in the stringed instrument main body and that generates a musical tone based on an electric signal detected by the string vibration detecting unit.

[0006]

In the stringed instrument constructed as described above, the string support structure including the string support fixing portion, the pickup means and the circuit board is detachably attached to the string instrument body. By simply attaching the support structure, the pickup means, the circuit board, and the like can be easily assembled to the predetermined position of the stringed instrument body. Further, since the string vibration suppressing member is detachably attached to a position near the pickup means of the main body of the string supporting structure including the pickup means, the string supporting and fixing portion, and the circuit board, immediately after the string is picked. The string vibration suppressing member can effectively suppress the string vibration.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a string trigger type electronic string instrument will be described below with reference to the drawings.

FIG. 1 is a perspective view showing the whole of an electronic stringed instrument according to the present invention in a partially disassembled state.

The electronic stringed instrument 1 shown in the figure has a shape of a guitar, and has a body 2, a neck 3, and a head 4.
On the main body 5 of the stringed instrument composed of and, a plurality of (six in this case) strings 6a to 6f for tensioning in the longitudinal direction from the body 2 to the head 4 are stretched in parallel. (Some are omitted in the figure). In this case, the strings 6a to 6f are non-magnetic strings (nylon strings, silk strings, sheep intestine strings, etc.) in which coil springs 7 made of a magnetic material are attached to required parts (see FIG. 3). Further, one end of each of the strings 6a to 6f is a string support portion of a string support structure 8 (which will be described later with reference to FIGS. 2 to 5) detachably attached to the rear center part on the body part 2. 44
And a string fixing part 45, and the other end is supported and fixed to a peg 10 of a string tension adjusting mechanism 9 (which will be described later) fixed to the upper surface side of the head part 4. ..

On the upper surface of the body 2 of the stringed instrument body 5, in addition to the string support structure 8, a power on / off switch 11, a volume switch 12, a mute switch 13, a pad operation switch 14, a rhythm select switch 15, a tone color select. Panel switches such as the switch 16 are provided,
In addition, a circuit board (not shown) on which circuits of the entire musical instrument are formed, a speaker 17 and the like are arranged inside the body 2.
A finger board 18 (which will be described later) is provided on the upper surface side of the neck portion 3.

The stringed instrument body 5 is formed of a synthetic resin, and in the case of the illustrated example, in order to facilitate the moldability and assemblability of the stringed instrument body 5, the body portion 2 and the neck portion 3 are formed.
It has a structure in which is configured separately and combined. Further, the body 2 is also divided into the upper divided body 19 and the lower divided body 20 for the same reason.
It is composed of and. The body portion 2 and the neck portion 3 which are separately configured are integrally coupled by a bolt or the like (not shown) by fitting the base end portion 22 of the neck portion 3 into a concave groove 21 formed on the upper surface side of the body portion 2. To be done. Further, the upper divided body 19 and the lower divided body 20 which form the body portion 2 are also integrally connected by a bolt or the like not shown.

As described above, the body portion 2 and the neck portion 3 which are separately formed by the synthetic resin and integrally coupled to each other are integrated with the metal reinforcing member 23 in the form of a strip plate to improve the rigidity. I am trying. The metal reinforcing member 23 has the head portion 4 of the neck portion 3 integrally formed, and extends from the tip to the body portion 2.
The string support structure 8 is placed over the portion where the string support structure 8 is installed, and one end 24 is integrally connected to the metal base member 25 of the string tension adjusting mechanism 9 fixed to the head part 4 by the bolt 26. , The other end 27 is attached to the string support structure 8 by the bolt 7
7 (see FIGS. 2 to 4). The metal reinforcing member 23 is mounted on a plurality of bosses 29 that are integrally formed in the opening 28 on the upper surface side of the neck portion 3 at predetermined intervals in the longitudinal direction by bolts (not shown). Fixed. Therefore, each boss 29 is provided with a screw hole 30, and a portion of the metal reinforcing member 23 corresponding to each boss 29 is provided with a bolt hole 31. In this case, the other end 27 of the metal reinforcing member 23 is inserted from the hole 33 formed in the end plate 32 of the neck portion 3 into the shallow band-shaped groove 34 formed in the central portion of the upper surface of the body portion 2 to form the groove 34. It is fitted.
At this time, the upper surface of the metal reinforcing member 23 is flush with the upper surface of the body 2.

The finger board 18 is a circuit board 35.
And an elastic flexible sheet 36 made of rubber that integrates the circuit board 35 on the lower surface side. In this case, U-shaped grooves 37 and 38 are formed on both sides of the lower surface side of the elastic flexible sheet 36 over the entire sheet, respectively, and the circuit board 35 is fitted into the grooves 37 and 38 to be integrated. Be converted. In this case, the both are connected by a bolt (not shown) arranged in each bolt hole 39. Fixed contacts 40 are provided on the upper surface of the circuit board 35 for each semitone corresponding to the strings 6a to 6f. Frets 41 are provided on the upper surface of the elastic flexible sheet 36 for each semitone, and movable contacts (not shown) corresponding to the strings 6a to 6f and the movable contacts are defined and fixed on the lower surface. A spacer (not shown) for separating the contact 40 is provided.
Then, when the elastic flexible sheet 36 is pressed from above,
The movable contact of the pressing portion comes into contact with the fixed contact 40 which faces the movable contact, whereby the fret switch is turned on, and a predetermined pitch designation signal is output to the tone generation circuit (built in the body 2) that is the sound source. Then, set the pitch of the musical sound. In addition,
The fixed contact 40 and the movable contact are formed by carbon printing, and the fret 41 and the spacer are the elastic flexible sheet 36.
Is formed integrally with the. The finger board 18 configured in this manner has a rib-shaped support base (protrusion) 42 integrally formed on both sides of the opening 28 of the neck portion 3.
It is fitted and fixed in the opening 28 so as to be placed in a form of being laminated on the metal reinforcing member 23 arranged on the lower side of 43. In this case, the finger board 18 is bonded to the neck portion 3.

The string supporting structure 8 is a molded body of synthetic resin, and as shown in FIGS. 2 to 5, the string supporting portion 4 is provided on the upper surface side.
4, a string fixing portion 45, and a string vibration suppressing member (damper) 4
6, a mounting portion 47 of 6 and a mounting portion 49 of a spring fixing member 48 for fixing the coil spring 7 attached to each of the strings 6a to 6f, and a mounting portion 51 of an electromagnetic pickup 50 as a pickup means are formed. Circuit board 5 on the side
Two mounting portions 53 are formed.

The string support portion 44 is arranged in the central portion of the upper surface of the string support structure 8 and stands upright vertically on the upper surface so as to correspond to the respective strings 6a to 6f and has a horizontal string insertion hole in the central portion. It is constituted by a plurality of protrusions 55a to 55f having 54. In this case, the string insertion hole 54 is sized so that the coil spring 7 can be inserted therein, and the strings 6a to 6f with the coil spring 7 attached thereto are inserted and supported.

The string fixing portion 45 is arranged at the rear end of the upper surface of the string supporting structure 8 and includes a lower fixing portion 56 integrally formed on the upper surface and a plurality of unillustrated lower fixing portions 56. Upper fixing part 5 which is detachably connected by a bolt
7 and 7. The lower fixing portion 56 has a mountain-shaped cross section, and semi-circular grooves 58 into which the strings 6a to 6f are fitted are formed in the valleys on the upper surface corresponding to the strings 6a to 6f. On the other hand, the lower surface of the upper fixing portion 57 has a shape in contact with the upper surface of the lower fixing portion 56, and the strings 6a to 6a are formed on the lower surface of the upper fixing portion 57 so as to face the grooves 58, respectively.
A semicircular groove 59 into which 6f is fitted is formed. The strings 6a to 6f are formed by the string fixing portion 45 configured as described above.
In the case where the upper fixing portion 57 is removed from the lower fixing portion 56, the ends of the strings 6a to 6f are fitted into the grooves 58 of the lower fixing portion 56, and then the lower fixing portion 56 is fixed. When the upper fixing portion 57 is coupled with the bolts, the ends of the strings 6a to 6f are fixed on the string supporting structure 8 as shown in FIG.

The string vibration restraining member 46 is for damping the string vibration of the picked string in a short time (several seconds), and is made of silicon rubber or hard synthetic rubber in a prismatic shape. .. The mounting portion 47 of the string vibration suppressing member 46 is arranged in the front portion of the string supporting portion 44, and has a concave groove shape into which the string vibration suppressing member 46 can be fitted by press fitting or the like.

The spring fixing member 48 includes the strings 6a-6
It is for fixing the coil spring 7 attached to f and supported by the string supporting portion 44, and is made of a synthetic resin in a prismatic shape, and is formed by the string supporting portion 44 and the string fixing portion 4.
5 is fitted into a groove-shaped mounting portion 49 formed between the mounting portion 49 and the mounting portion 49. As a result, the end surface 60 brings the large diameter portion 61 of the coil spring 7 into contact with the string support portion 44 to fix the coil spring 7 in the string direction. The coil spring 7 is inserted into the string insertion hole 54 of the string support portion 44 from the mounting portion 49 side, and then the spring fixing member 48 is fitted into the mounting portion 49. At this point, the strings 6a to 6f are not supported by the string support portion 44, and the operation is performed after the spring fixing member 48 is attached. In this case, the strings 6a to 6f are fitted into the deep grooves 62 formed on the upper surface of the spring fixing member 48 at positions corresponding to the strings 6a to 6f, whereby the spring fixing member 48 is attached to the strings 6a to 6f. It is pressed down and fixed in position.

As shown in FIG. 6, the electromagnetic pickup 50 includes a holder 64 having a plurality of output terminals 63,
Iron core (core) 65 mounted on this holder 64
And the coil bobbin 67 around which the coil 66 is wound, and the coil spring 7 attached to the strings 6a to 6f is generated in the electromagnet (the iron core 65, the coil 66) by the action accompanying the string vibration caused by the picking operation. When the existing magnetic flux is changed, an induced potential is generated by the change in the magnetic flux,
The string vibration is detected as an electric signal.
The mounting portion 51 of such an electromagnetic pickup 50 is provided for each string 6
It is constituted by a plurality of holes 68 formed corresponding to a to 6f. The electromagnetic pickup 50 is fitted and mounted in the hole 68 from the lower surface side. In this case, the electromagnet is fitted in the upper small diameter portion 69 and the holder 64 is fitted in the lower large diameter portion 70. Since the electromagnetic pickup 50 is attached to the circuit board 52 described later, when the circuit board 52 is fixed to the attaching portion 53, the hole 6
The position is fixed within 8.

The circuit board 52 is used for each electromagnetic pickup 50.
When the voltage level of the electric signal detected by the above is higher than a predetermined value, it is output as a string trigger to a tone generation circuit (which is built in the body 2) which is a sound source, and a predetermined electronic component for generating a tone signal. A circuit having 71 and connecting the electromagnetic pickup 50 is formed. Such a circuit board 52 is fitted into a recessed mounting portion 53 formed on the lower surface of the string support structure 8 and fixed by a bolt (not shown).

String support structure 8 constructed as described above
Is fitted into a storage recess 72 formed on the upper surface of the body 2 and is detachably attached to the body 2 with a plurality of bolts 73. In addition, a plurality of metal plates 74 that reinforce the top plate 73 and carry the string support structure 8 are provided on the top plate 73 portion of the body 2 (upper divided body 19) to which the string support structure 8 is attached. It is integrated by a bolt 75.
The other end 27 of the metal reinforcing member 28 extends to a position where it abuts the end face 76 of the string supporting structure 8 in the groove 34 formed in the upper surface of the body 2, and as shown in FIG. It is fixed to the metal plate 74 via the plate 73 with a plurality of bolts 77.

A cover (sensor cover) (not shown) for protecting the electromagnetic pickup 50 and the like is detachably attached to the string support structure 8. Also,
A string vibration suppressing member (damper) 86 is also provided near the base end portion 22 of the neck portion 3 on the body portion 2.

The string tension adjusting mechanism 9 includes a base member 25.
And a plurality of pegs 10 mounted on the base member 25 so as to be slidable in the string direction corresponding to the strings 6a to 6f,
Each of these pegs 10 is individually attached to each of the pegs 10 and configured to slide. A plurality of guide grooves (dove grooves) 79 corresponding to the strings 6a to 6f are formed on the upper surface of the base member 25, and a piece 80 integrally formed in the lower portion of the peg 10 is formed in the guide groove 79. It is slidably fitted. This piece 8
A threaded rod (male thread) 81 of a predetermined length is integrally provided at one end of 0, which projects in a chord direction orthogonal to the peg 10.
A cylindrical operating member (bar nut) 78 is attached to the screw rod 81.
Is installed. The operation member 78 has a screw rod 81 at one end.
It has a female screw to be screwed into and a hole (hexagonal hole) at the other end for engaging a tool (hexagonal wrench) for rotating the operating member 78. In this case, one end of the operating member 78 is brought into contact with the end surface 82 of the base member 25, and when the operating member 78 in this state is rotated by a tool, the internal thread and the screw of the operating member 78 are screwed. The engaged screw rod 81 moves, and the peg 10 slides in the string tension direction. In this way, by sliding the peg 10 on the base member 25, the tension of each of the strings 6a to 6f supported and fixed to each peg 10 can be adjusted. Note that such string tension adjustment can be performed with the cover 83 of the head portion 4 covering the string tension adjusting mechanism 9 attached. A guide groove 84 corresponding to each peg 10 is formed on the upper surface of the cover 83, and a hole 85 corresponding to each operation member 78 is formed on the rear end surface thereof, which can be engaged with and disengaged from the head portion 4. It is fixed by the engagement structure.

In the electronic stringed instrument 1 of this embodiment constructed as described above, the electromagnetic pickup 50 and the circuit board 52 are provided in the string support structure 8 detachably attached to the body 2. When assembling the main body of the stringed instrument, the string support structure 8 in which the electromagnetic pickup 50 and the circuit board 52 are assembled to the predetermined mounting portions 51 and 53 in advance is simply attached to the body portion 2 with the bolts 73 to thereby form the electromagnetic pickup 50 and the circuit. The substrate 52 can be assembled. Further, even if a failure occurs in the electromagnetic pickup 50 or the circuit board 52, it is possible to easily and easily replace the string support structure 8 by removing only the string support structure 8 without removing other parts attached to the body 2. it can.

Although the above embodiment has been described as applied to a string trigger type electronic string instrument, the present invention is not limited to this and is similarly applied to an electronic string instrument such as a pitch extraction type or ultrasonic type. It is possible.

[0026]

As described above, according to the stringed instrument of the present invention, the string support structure including the string support means, the string vibration detection means, and the electronic processing means is detachably attached to the main body of the string instrument. Since the structure is adopted, the string vibration detecting means and the electronic processing means are assembled to the predetermined position of the string instrument main body only by attaching the string support structure to the main body of the string instrument. In addition to simplifying the assembly work for the string instrument body such as means, when the string vibration detecting means or the electronic processing means fails, the string supporting structure is removed from the string instrument body immediately to immediately detect the defective string vibration detecting means or electronic processing. There is an advantage that the means can be easily repaired and replaced. Further, according to the stringed instrument of the present invention, the string vibration damping means can be attached to and detached from the string support structure body including the string vibration detection means, the string support means, and the electronic processing means in the vicinity of the string vibration detection means. The string vibration damping means effectively suppresses the string vibration immediately after the string is picked. Therefore, since it is possible to prevent the strings from vibrating for a long time, there is an advantage that it is possible to prevent the musical sounds unintended by the player from being erroneously produced by unnecessary string vibration. is there.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an entire electronic stringed instrument according to the present invention.

FIG. 2 is a plan view of a string support structure attached to an upper surface of a body of the electronic stringed instrument.

FIG. 3 of FIG.

[Outer 1] Sectional view along the line

FIG. 4 of FIG.

[Outside 2] Sectional view along the line

FIG. 5 is a bottom view of the string support structure.

FIG. 6 is a perspective view of an electromagnetic pickup attached to the same string support structure.

[Explanation of symbols]

 5 String instrument main body 6a-6f String 8 String support structure 44 String support part 45 String fixing part 50 Electromagnetic pickup 52 Circuit board

Claims (10)

[Claims] 1. At least one string stretched over a stringed instrument body, and string support means detachably mounted on the stringed instrument body for supporting and fixing at least one end of the string. A string vibration detecting means detachably attached to the string supporting means for detecting the vibration of the string and outputting an electric signal corresponding to the detected vibration, and detachably attached to the string supporting means, A stringed musical instrument, comprising: electronic processing means for performing electrical processing on the electric signal detected by the string vibration detecting means to control a musical sound to be generated. 2. The stringed instrument according to claim 1, further comprising string vibration damping means for damping the vibration of the string in the vicinity of the string vibration detection means. 3. The string instrument according to claim 2, wherein the string vibration damping means is detachably attached to the string supporting means. 4. A flexible structure in which the string is inserted, one end of which is detachably attached to the string supporting means and the other end of which is attached to the outer periphery of the string, and which follows the movement of the inserted string. The stringed instrument according to claim 1, further comprising an annular magnetic member having a. 5. The stringed instrument according to claim 1, wherein the string is made of a non-magnetic material. 6. The stringed instrument according to claim 4, wherein the magnetic material is formed by winding a wire made of a magnetic material in a coil shape. 7. The string is formed of a magnetic material,
The stringed instrument according to claim 1, wherein the string vibration detection means is an electromagnetic pickup device. 8. The string supporting means includes a body detachably attached to the string instrument body, a string supporting portion formed on the body so as to support one end of the string, and the string supporting portion. The stringed instrument according to claim 1, further comprising: a fixing portion that cooperates to fix one end of the string. 9. The substrate mounting portion is formed on the surface of the string supporting means on the main body side of the string instrument, and the electronic processing means is mounted on the substrate mounting portion. Stringed instrument. 10. The stringed musical instrument according to claim 1, further comprising a musical sound generating means provided in the main body of the stringed musical instrument, for generating a musical sound based on an electric signal detected by the string vibration detecting means.