WO2017046843A1 - ピックアップ及びピックアップを備えた弦楽器 - Google Patents
ピックアップ及びピックアップを備えた弦楽器 Download PDFInfo
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- WO2017046843A1 WO2017046843A1 PCT/JP2015/076006 JP2015076006W WO2017046843A1 WO 2017046843 A1 WO2017046843 A1 WO 2017046843A1 JP 2015076006 W JP2015076006 W JP 2015076006W WO 2017046843 A1 WO2017046843 A1 WO 2017046843A1
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- pickup
- string
- sound
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- saddle
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Classifications
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- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H3/00—Instruments in which the tones are generated by electromechanical means
- G10H3/12—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
- G10H3/14—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means
- G10H3/18—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means using a string, e.g. electric guitar
- G10H3/186—Means for processing the signal picked up from the strings
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H3/00—Instruments in which the tones are generated by electromechanical means
- G10H3/12—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
- G10H3/14—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means
- G10H3/143—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means characterised by the use of a piezoelectric or magneto-strictive transducer
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10D—STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
- G10D1/00—General design of stringed musical instruments
- G10D1/04—Plucked or strummed string instruments, e.g. harps or lyres
- G10D1/05—Plucked or strummed string instruments, e.g. harps or lyres with fret boards or fingerboards
- G10D1/08—Guitars
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10D—STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
- G10D1/00—General design of stringed musical instruments
- G10D1/04—Plucked or strummed string instruments, e.g. harps or lyres
- G10D1/05—Plucked or strummed string instruments, e.g. harps or lyres with fret boards or fingerboards
- G10D1/08—Guitars
- G10D1/085—Mechanical design of electric guitars
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/32—Constructional details
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H3/00—Instruments in which the tones are generated by electromechanical means
- G10H3/12—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
- G10H3/14—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means
- G10H3/18—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means using a string, e.g. electric guitar
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H3/00—Instruments in which the tones are generated by electromechanical means
- G10H3/12—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
- G10H3/14—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means
- G10H3/18—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means using a string, e.g. electric guitar
- G10H3/185—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means using a string, e.g. electric guitar in which the tones are picked up through the bridge structure
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2220/00—Input/output interfacing specifically adapted for electrophonic musical tools or instruments
- G10H2220/461—Transducers, i.e. details, positioning or use of assemblies to detect and convert mechanical vibrations or mechanical strains into an electrical signal, e.g. audio, trigger or control signal
- G10H2220/465—Bridge-positioned, i.e. assembled to or attached with the bridge of a stringed musical instrument
- G10H2220/481—Bridge-positioned, i.e. assembled to or attached with the bridge of a stringed musical instrument on top, i.e. transducer positioned between the strings and the bridge structure itself
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2220/00—Input/output interfacing specifically adapted for electrophonic musical tools or instruments
- G10H2220/461—Transducers, i.e. details, positioning or use of assemblies to detect and convert mechanical vibrations or mechanical strains into an electrical signal, e.g. audio, trigger or control signal
- G10H2220/525—Piezoelectric transducers for vibration sensing or vibration excitation in the audio range; Piezoelectric strain sensing, e.g. as key velocity sensor; Piezoelectric actuators, e.g. key actuation in response to a control voltage
Definitions
- Embodiments of the present invention relate to a pickup that converts sound generated from a stringed instrument such as a guitar into an electric signal and a stringed instrument including the pickup.
- a pickup installation method a method of installing a pickup at the bottom of a groove for holding a saddle provided on a bridge of a stringed instrument is known. Thereby, the vibration of the string transmitted through the saddle can be detected by the piezoelectric element of the pickup.
- the above pickup is installed in a closed space covered with a saddle, the sound detected by this pickup not only contains a lot of noise and internal reverberation, but also the vibration sound of the string itself. Because the timbre provided by the saddle material that supports the guitar has great dominance, it is different from the timbre caused by the vibration of the air caused by the outer shell vibration of a musical instrument that people actually hear through their ears.
- an object of the present invention is to provide a pickup that can detect a sound close to an actual sound that can be heard by vibrating the air around the instrument, and that can be easily attached, and a stringed instrument including the pickup. .
- the pickup according to the present embodiment is a pickup that is used for a stringed musical instrument and converts vibrations of a string into an electrical signal, and is disposed on the string side of the piezoelectric element and at least one piezoelectric element provided corresponding to the number of strings.
- a piezoelectric sensor comprising: a first electrode that is arranged; a second electrode that is disposed on the opposite side of the first electrode; a wiring that is electrically connected to the piezoelectric sensor; and a portion where the piezoelectric sensor contacts the string And a cap formed integrally with the protection portion and having an arm portion locked to the stringed instrument together with the string.
- the stringed instrument includes a main body, a string stretched along the surface of the main body, at least one piezoelectric element corresponding to the number of strings, and a string side of the piezoelectric element.
- a pickup that includes a first electrode that is disposed and a second electrode that is disposed on the main body opposite to the first electrode, and is pressed between the main body by the tension of the string and converts the vibration of the string into an electric signal. And comprising. Further, the pickup is disposed so as to be exposed on the surface of the main body.
- the present invention it is possible to provide a pickup that can detect a sound close to the actual sound that can be heard by vibrating the air around the instrument, and that can be easily attached, and a stringed instrument including the pickup.
- FIG. 1 is a schematic view showing an acoustic guitar provided with a pickup according to the first embodiment.
- FIG. 2 is a plan view showing the pickup of FIG.
- FIG. 3 is a partial cross-sectional view showing a state where the pickup of FIG. 2 is partially cut at F3-F3.
- FIG. 4 is a partial enlarged cross-sectional view in which the portion F4 in FIG. 3 is enlarged.
- FIG. 5 is a plan view showing a bridge to which the pickup according to the present embodiment is attached.
- FIG. 6 is a schematic cross-sectional view of the main part of the acoustic guitar to which the pickup according to the present embodiment is attached.
- FIG. 1 is a schematic view showing an acoustic guitar provided with a pickup according to the first embodiment.
- FIG. 2 is a plan view showing the pickup of FIG.
- FIG. 3 is a partial cross-sectional view showing a state where the pickup of FIG. 2 is partially cut at F3-F3.
- FIG. 7 is a schematic cross-sectional view of the main part of an acoustic guitar showing another example of mounting the pickup shown in FIG.
- FIG. 8 is a perspective view showing the pickup to which the cap shown in FIG. 7 is attached.
- FIG. 9 is a schematic cross-sectional view of the main part of an acoustic guitar showing still another example of mounting the pickup shown in FIG.
- FIG. 10 is a plan view showing a state in which the pickup of FIG. 3 is attached to a bridge of a classic guitar.
- FIG. 11 is a schematic cross-sectional view taken along line F11-F11 in FIG.
- FIG. 1 is an external view showing an acoustic guitar 100 as an example of a stringed instrument including the pickup 1 according to the first embodiment.
- FIG. 2 is a plan view of the pickup 1 of the present embodiment attached to the acoustic guitar 100.
- the acoustic guitar 100 has a hollow body 2, a neck 4, and a head 6 that are the main body of the stringed instrument.
- the neck 4 is a rod-shaped member. One end of the neck 4 is fixed to the main body 2.
- the neck 4 is fixed to the head 6 at the other end.
- the sound board 2 a on the surface side of the main body 2 is provided with a bridge 12 for holding one end of the string 8.
- the head 6 is provided with six tuning pegs 14 around which the other end of the string 8 is wound. That is, the acoustic guitar 100 has six strings 8 stretched along the neck 4 with the bridge 12 described later.
- the bridge 12 is provided with six holes 18 for fixing the strings 8, a saddle 16, and a pickup 1 that converts vibrations due to the plucking of the six strings 8 into electric signals.
- the saddle 16 supports the string 8 stretched along the neck 4 at a predetermined string height. That is, the saddle 16 is a support member that functions as a fulcrum of string vibration together with the tuning peg 14. Further, the saddle 16 and the bridge 12 transmit the string vibration to the main body 2.
- the pickup 1 is provided between the six holes 18 and the saddle 16. The pickup 1 is disposed so as to be exposed on the surface of the bridge 12.
- FIG. 3 is a partial cross-sectional view showing a state in which the pickup 1 shown in FIG. 2 is partially cut at F3-F3
- FIG. 4 is a partial enlarged cross-sectional view in which the F4 portion of FIG. 3 is enlarged.
- the pickup 1 includes a piezoelectric sensor 10 having a plurality of piezoelectric elements 11 and wiring 20 for transmitting an electrical signal obtained by the piezoelectric sensor 10. That is, one end of the wiring 20 is connected to the piezoelectric sensor 10, and the connection terminal 21 is provided at the other end.
- the piezoelectric sensor 10 includes a piezoelectric element 11, a first electrode 13a, a second electrode 13b, a base 5, an intermediate member 15, a first covering material 17a, and a second covering material. 17b.
- the piezoelectric elements 11 are arranged at a position facing the six strings 8 so as to be separated from each other along the longitudinal direction of the piezoelectric sensor 10 and arranged in a substantially straight line with a predetermined interval.
- the intermediate member 15 is an insulating member provided between adjacent piezoelectric elements 11 of the plurality of piezoelectric elements 11 arranged on the base 5.
- the first electrode 13 a is laminated on each piezoelectric element 11, and is located on the string 8 side when the piezoelectric sensor 10 is attached to the main body 2.
- the second electrode 13b is provided on the opposite side of the first electrode 13a via the piezoelectric element 11.
- the first electrode 13 a is provided at one end in the polarization direction of the piezoelectric element 11.
- the second electrode 13 b is provided at the other end in the polarization direction of the piezoelectric element 11.
- the base 5 is formed of glass fiber or the like and constitutes the skeleton of the piezoelectric sensor 10.
- the first covering material 17a is a conductive tape that winds the piezoelectric element 11, the first electrode 13a, the second electrode 13b, the intermediate member 15, and the base 5 from the outside.
- the second covering material 17b is a leather tape that further covers the first covering material 17a.
- the piezoelectric element 11 for example, lead zirconate titanate, barium titanate, lead titanate, crystal, or the like can be used.
- the electroconductive metal thinly processed into the tape shape for example, gold
- animal skin or synthetic leather can be used as the second covering material 17b. In this embodiment, a cowhide with a tape shape is used.
- the piezoelectric elements 11 are arranged at a predetermined interval along the longitudinal direction of the piezoelectric sensor 10. According to this embodiment, as shown in FIG. 2, the six piezoelectric elements 11 are arranged at intervals.
- the number of piezoelectric elements 11 is provided corresponding to the number of strings 8. That is, in the acoustic guitar 100 having six strings 8, the pickup 1 including the six piezoelectric elements 11 is used.
- the piezoelectric element 11 facing the first, second, fifth, and sixth strings of the acoustic guitar 100 is compared with the piezoelectric element 11 facing the third and fourth strings. Then, the lengths in the longitudinal direction of the piezoelectric sensors 10 of the two piezoelectric elements 11 are different. Accordingly, the distance L2 between the piezoelectric elements 11 facing the second and third strings is set wider than the distance L1 between the piezoelectric elements 11 facing the first and second strings. ing. Similarly, the distance L2 between the piezoelectric elements 11 facing the fourth and fifth strings is larger than the distance L1 between the arrangements of the piezoelectric elements 11 facing the fifth and sixth strings. . Further, the distance L3 between the arrangements of the piezoelectric elements 11 facing the third string and the fourth string is arranged to be larger than the distance between the arrangements of any of the adjacent piezoelectric elements 11 described above.
- the piezoelectric sensor 10 of the pickup 1 having such a configuration is an intermediate provided between the piezoelectric elements 11 facing the third and fourth strings, which are relatively easy to detect noise due to resonance of adjacent strings 8 and the like. A wide area of the member 15 can be secured. For this reason, according to the piezoelectric sensor 10 of this embodiment, the interference of the sound oscillated from the adjacent string 8 can be reduced, and each piezoelectric element 11 can selectively detect the sound of the string 8 facing each other. .
- the third string and the fourth string are arranged in the central portion of the main body 2, they are strongly influenced by vibration (sound). On the other hand, the first string, the second string, the fifth string, and the sixth string receive less vibration (sound) than the third string and the fourth string.
- the piezoelectric elements 11 corresponding to the third and fourth strings in the center portion are made smaller than the other piezoelectric elements 11. Further, by reducing the piezoelectric elements 11 corresponding to the third string and the fourth string, it is possible to reduce the influence of the mid-range vibration that easily causes howling.
- the intermediate member 15 for example, glass fiber, rubber-like polymer, polyethylene, resin, or the like can be used.
- FIG. 5 is a plan view showing the bridge 12 to which the pickup 1 is attached.
- FIG. 6 is a schematic sectional view of the acoustic guitar 100 to which the pickup 1 is attached. In FIG. 5, only the sixth string is shown, and the first to fifth strings are not shown.
- the sound board 2a of the guitar 100 is provided with a bridge 12, a saddle 16, a string 8, a pin 30 for fixing the string 8, and a pickup 1.
- the bridge 12 includes six holes 18 through which one end of the string 8 is inserted, a saddle groove 12a in which the saddle 16 is provided, and a guide groove 12b in which the pickup 1 is provided.
- the saddle groove 12 a is a substantially rectangular groove for fitting the saddle 16 and supporting the saddle 16.
- the guide groove 12b is connected to six second holes 18b described later.
- the guide groove 12b is a substantially rectangular groove provided along the direction in which the strings 8 are arranged.
- the hole 18 has a so-called keyhole shape. That is, in the plan view, the hole 18 has a substantially circular first hole 18a having a size capable of inserting a ball 8a provided at one end of the string 8 and a substantially semicircular shape in which the string 8 is fitted and smaller than the ball 8a. The hole is connected to the second hole 18b. In the present embodiment, the holes 18 are provided along the arrangement direction of the strings 8 corresponding to the number of the strings 8.
- the saddle 16 is fitted along the saddle groove 12a.
- the saddle 16 supports a string 8 stretched along the neck 4 from the hole 18 to the head 6.
- the pin 30 is a wedge-shaped member having a tapered shape that tapers toward the tip.
- the pin 30 is pushed into the hole 18 through which the string 8 is inserted, and fixes the string 8 with the ball 8a as an anchor. That is, the pin 30 together with the hole 18 functions as a fixing portion for the string 8.
- the pickup 1 has a piezoelectric sensor 10 and wiring 20 as shown in FIG.
- the wiring 20 of the pickup 1 is inserted into the inside of the main body 2 from, for example, a through hole 19 provided near the center of the bridge 12 and connected to a wiring board (not shown).
- a cap 50 is attached to the piezoelectric sensor 10 of the present embodiment.
- the cap 50 is a protective member having a U-shaped cross section that is attached to the outside of the second covering material 17 b of the piezoelectric sensor 10.
- the cap 50 integrally includes a bottom wall portion 501 and two side wall portions 502 extending in the same direction substantially perpendicularly from two opposing sides of the bottom wall portion 501.
- the distance from the inner surface of the bottom wall portion 501 of the cap 50 to the tip of the side wall portion 502 is formed shorter than the distance from the surface on the first electrode 13a side to the surface on the second electrode 13b side of the piezoelectric sensor 10. Yes.
- the cap 50 is attached at a position covering each of the six piezoelectric elements 11 arranged in the longitudinal direction of the piezoelectric sensor 10 as shown in FIG. That is, in the present embodiment, six caps 50 are attached to the piezoelectric sensor 10 so as to face the six piezoelectric elements 11. As shown in FIG. 6, the cap 50 is in contact with the surface of the piezoelectric sensor 10 on the first electrode 13 a side and the bottom wall portion 501, and the surface of the piezoelectric sensor 10 on the first electrode 13 a side and the second electrode 13 b side.
- the two side walls 502 are attached to the piezoelectric sensor 10 so as to contact two side surfaces connecting the surfaces.
- the bottom wall portion 501 of the cap 50 is attached so as to face the surface of the piezoelectric sensor 10 on the first electrode 13a side. In other words, the surface of the piezoelectric sensor 10 on the second electrode 13 b side is not covered with the cap 50.
- the cap 50 according to the present embodiment is manufactured by bending a rectangular plate-shaped metal plate at two places.
- the width of the cap 50 is made wider than at least the string 8.
- the material of the cap 50 is not limited to a metal, and a material other than a metal material can be used as long as it can transmit vibration without damping vibration and has a certain degree of durability.
- the pickup 1 to which the six caps 50 are attached is attached along the guide groove 12b as shown in FIGS.
- the piezoelectric sensor 10 is attached to the guide groove 12b in such a direction that the surface on the second electrode 13b side and the side wall 12c on the saddle 16 side of the guide groove 12b contact each other.
- the surface on the first electrode 13 a side of the piezoelectric sensor 10 faces the string 8 through the cap 50.
- the string 8 When the tuning peg 14 is turned and tension is applied to the string 8, the string 8 is pulled in the direction of the arrow X as shown in FIG. Thus, the piezoelectric sensor 10 held in the guide groove 12b is pressed toward the side wall 12c on the head 6 side of the guide groove 12b by the tension of the string 8.
- a gap S is provided between the tips of the two side wall portions 50 of the cap 50 and the side wall 12c of the bridge 12.
- the influence of the vibration of the string 8 can be minimized.
- the pickup In the conventional pickup installation method, the pickup is held in a closed space surrounded by a saddle groove and a saddle. For this reason, the sound detected by the conventional pickup is the sound of the string 8 directly transmitted through the saddle 16 and the sound transmitted to the closed space in the bridge.
- This is a reverberant sound, and the instrument shell vibration is generated while maintaining time.
- the sound in the internal space of the main body 2 is an important element in order to form the sound quality of the acoustic guitar 100 that a person is actually listening to.
- the sound in this internal space is not a sound that has a particularly dominant influence on the tone that a person is actually listening to.
- the pickup 1 according to this embodiment is exposed and attached to the surface of the sound board 2a. For this reason, the pickup 1 hardly detects the vibration of the string 8 directly from the saddle 16. Further, the pickup 1 can reduce the occurrence of howling due to the circulation of reverberant sound in the internal space of the main body 2 when passing through an electrical amplifying device such as an amplifier. Furthermore, it is possible to greatly reduce the mid-range internal reverberation and noise that are characteristic of conventional pickup installation methods.
- the pickup 1 when the pickup 1 is disposed so as to be exposed on the surface of the bridge 12, the pickup 1 reverberates inside the main body 2, and vibration (sound) transmitted to the sound board 2 a and the bridge 12 and between the saddle 16 and the pin 30.
- the minute vibration (sound) of the string 8 is detected.
- the pickup 1 can detect the vibration (sound) transmitted to the saddle 16 and the bridge 12 and the entire instrument including the neck 4 and the outer shell vibration (sound) of the instrument that vibrates external air.
- the pickup 1 that is disposed exposed on the surface of the bridge 12 can detect vibration centering on the sound of the acoustic guitar 100 that is actually being listened to, that is, the so-called raw sound.
- the raw sound is vibration (sound) that reaches the human ear using air as medium vibration.
- the difference between the conventional pickup installation method and the pickup 1 installation method is that, for example, when listening to sound in a closed space inside the speaker box and listening to sound transmitted through the space outside the speaker box, the sound is different. Is similar to being clearly different. That is, the human ear recognizes, as a speaker sound, a total sound generated by the entire vibration including not only the speaker cone but also the outer shell of the speaker box that vibrates the sound generated inside the speaker box.
- the piezoelectric sensor 10 of the pickup 1 is directly pressed by the six strings 8 at the position of each piezoelectric element 11. For this reason, according to the present embodiment, the piezoelectric elements 11 are arranged on the first to sixth strings. For this reason, the difference in the string vibration depending on the installation position of each string 8 can be detected.
- the person who plays the musical instrument listens to the sound of the acoustic guitar 100 that is actually being listened to and the sound detected by the pickup 1 and amplified by the electric amplifying device. Can be experienced. Such a three-dimensional sound can be realized only when the sound quality heard from the electric amplifying device via the pickup 1 is very similar to the raw sound of the acoustic guitar 100.
- an intermediate member 15 is provided between the adjacent piezoelectric elements 11 for a predetermined interval. For this reason, the malfunction which detects the vibration of the other string 8 adjacent to the string 8 which opposes one piezoelectric element 11 can be suppressed, and noise can be reduced.
- the conventional pickup is provided in a closed space between the saddle and the saddle groove.
- the vibration of the string is transmitted to the piezoelectric sensor through the saddle. For this reason, when cutting is performed to replace the saddle or adjust the string height, the pressure applied to the piezoelectric sensor may change, and the sound detection sensitivity may change.
- the pickup 1 according to the present embodiment is accommodated in the guide groove 12b of the bridge 12. Therefore, even when the saddle is replaced or cut, the piezoelectric sensor 10 and the saddle 16 do not come into contact with each other, so that the sound detection sensitivity of the pickup 1 does not change.
- the pickup 1 according to this embodiment can be attached later to an acoustic guitar that does not include the pickup 1. That is, when the owner of the acoustic guitar desires, the acoustic guitar can be improved to the acoustic guitar 100 provided with the pickup 1.
- the pickup 1 according to the present embodiment can be attached without requiring a special technique by simply providing the guide groove 12b in the bridge 12 and providing the through hole 19 through which the wiring 20 passes.
- the pickup 1 covers the first covering material 17a with cowhide as the second covering material 17b.
- the second covering material 17b makes the presence of the pickup 1 attached to the main body 2 difficult to see and is excellent in design.
- a lead layer can also be provided between the 1st coating
- the pickup 1 provided with the lead layer can cut harmonics more effectively.
- the pickup 1 according to the present embodiment is assembled by the pressing force of the main body 2 and the string 8. That is, the pickup 1 according to the present embodiment does not need to use a special assembly member or an adhesive, and can prevent movement of the position of the pickup 1 due to string vibration and separation from the main body 2.
- the pickup 1 to be installed has a cap 50a as shown in FIGS.
- FIG. 7 is a partially enlarged cross-sectional view in which a main part of an acoustic guitar 100b including the pickup 1 having six caps 50a attached to the piezoelectric sensor 10 is partially enlarged.
- FIG. 8 is a perspective view showing the pickup 1 to which six caps 50a are attached.
- the cap 50 a has an arm part 51 and a protection part 53.
- the protection unit 53 covers the piezoelectric element 11 provided in the piezoelectric sensor 10 of the pickup 1 from the outside of the first covering material 17a.
- the protection part 53 includes a tip end part 53 a that contacts the second electrode 13 b side of the piezoelectric element 11 and an intermediate part 53 b that contacts the first electrode 13 a side of the piezoelectric element 11.
- the protection unit 53 is wound around the piezoelectric sensor 10.
- the protection part 53 is wound around the piezoelectric sensor 11 so that the arm part 51 is located on the pin 30 side.
- the arm portion 51 is provided continuously from the intermediate portion 53b of the protection portion 53, and has an engagement end 51a bent in a direction away from the pin 30 at the end opposite to the intermediate portion 53b. That is, the arm portion 51 of the cap 50 a shown in FIG. 7 extends from the surface of the bridge 12 through the hole 18 to the inside of the main body 2 along the string 8. The end of the arm 51 inserted on the main body 2 side is engaged with the surface 40a of the reinforcing plate 40 attached to the back surface of the sound board 2a. The arm 51 is fixed by the pin 30 together with the string 8.
- the number of the caps 50 a is the same as the number of the piezoelectric elements 11 like the cap 50. In the present embodiment, as shown in FIG. 8, each of the piezoelectric elements 11 is covered using six caps 50a. Further, if the cap 50a is bent in advance before the attachment process to the piezoelectric sensor 10, the workability is improved.
- the acoustic guitar 100b shown in FIG. 7 does not have the guide groove 12b for attaching the piezoelectric sensor 10 to the bridge 12, unlike the guitar 100 shown in the embodiment of FIG.
- the pickup 1 is disposed between the string 8 and the bridge 12 with the pickup 1 held by the cap 50 a.
- the tension of the string 8 in the portion near the edge on the saddle 16 side of the hole 18 acts in the arrow Y direction as a pressing force toward the bridge 12.
- the pickup 1 is held in a state of being pressed against the main body 2.
- the pickup 1 having such a cap 50a maintains the position of the piezoelectric sensor 10 because the arm portion 51 is engaged with the bridge 12 and the reinforcing plate 40 even when the tension of the string 8 is weakened. Can do. For this reason, the cap 50a can prevent displacement of the pickup 1.
- the pickup 1 to be installed has a cap 50b as shown in FIG.
- FIG. 9 is a partially enlarged cross-sectional view in which a main part of an acoustic guitar 100c including the pickup 1 having six caps 50b attached to the piezoelectric sensor 10 is partially enlarged.
- the cap 50b shown in FIG. 9 is formed by bending an elongated plate-like member.
- the cap 50b has an arm part 51 and a protection part 53c.
- the protection part 53c covers the piezoelectric element 11 provided in the piezoelectric sensor 10 of the pickup 1 from the outside of the first covering material 17a.
- the protection part 53 c has a tip part 53 a that contacts the second electrode 13 b side of the piezoelectric element 11 and an intermediate part 53 b that contacts the first electrode 13 a side of the piezoelectric element 11.
- the protection part 53 c is wound around the piezoelectric sensor 10.
- the protection part 53c is wound around the piezoelectric sensor 11 so that the arm part 51 is located on the pin 30 side.
- the arm portion 51 is a portion that extends downward from the intermediate portion 53b of the protection portion 53c.
- the arm portion 51 has an engagement end 51a bent in a direction away from the pin 30 at the end opposite to the intermediate portion 53b. That is, the arm portion 51 of the cap 50 b shown in FIG. 9 extends along the string 8 from the surface of the bridge 12 through the hole 18 to the inside of the main body 2.
- the end of the arm 51 inserted on the main body 2 side is engaged with the surface 40a of the reinforcing plate 40 attached to the back surface of the sound board 2a.
- the arm 51 is fixed by the pin 30 together with the string 8. Further, if the cap 50b is bent in advance before the step of attaching to the piezoelectric sensor 10, workability is improved.
- the piezoelectric sensor 10 including the six caps 50 b is disposed between the hole 18 and the saddle 16.
- the tension of the string 8 acts in a direction in which the pickup 1 is pressed against the saddle 16 as indicated by an arrow Z in FIG.
- the piezoelectric sensor 10 is pressed from the side of the first electrode 13a arranged on the string 8 side to the side of the second electrode 13b arranged on the opposite side via the piezoelectric element 11, and the saddle of the main body 2 is reached. 16 and the string 8 are held.
- the piezoelectric sensor 10 can be reliably pressed against the saddle 16 by sandwiching a pillow called shim 60 therebetween. it can.
- the pickup 1 can be effectively arranged when the saddle 16 and the hole 18 of the bridge 12 are close to each other. Further, when the pickup 1 is attached at the position shown in FIG. 9, the pickup 1 can pick up vibration from the saddle 16. For this reason, the pickup 1 according to this modification can pick up the sound that is closer to the vibration sound source and is emitted to the outside.
- FIG. 10 is a plan view showing a classic guitar 200 provided with the pickup 1 having six caps 50c attached to the piezoelectric sensor 10.
- FIG. 11 is a schematic sectional view taken along the line F11-F11 of the classical guitar 200 shown in FIG.
- the classical guitar 200 has a bridge 120, a saddle 16, a string 8c, and a pickup 1 on the surface of the sound board 2a.
- the bridge 120 includes a support base 124 having a saddle groove 12a for supporting the saddle 16, and a block-shaped fixing portion 122 having six holes 18c for binding one end of the string 8c.
- the saddle groove 12a is a substantially rectangular groove provided in the direction intersecting the string 8c at the top of the support base 124 in order to fit the saddle 16 and to make the saddle 16 stand stably.
- the holes 18c are provided along the arrangement direction of the strings 8c corresponding to the number of the strings 8c.
- the pickup 1 is disposed so as to be exposed on the surface 120a of the fixing portion 122 that fixes the saddle 16 that supports the string 8c and the end of the string 8c.
- a cap 50c is attached to the piezoelectric sensor 10 of the pickup 1 of the present embodiment.
- the cap 50 c is a protective member having an M-shaped cross section that is attached to the outside of the second covering material 17 b of the piezoelectric sensor 10. That is, the cap 50 c includes an upper surface 54 having a concave portion 57 toward the center and two side wall portions 58 extending substantially perpendicularly from two opposing sides of the upper surface 54.
- a gap T is formed between the tip of the side wall 58 of the cap 50c and the surface 120a of the bridge 120.
- the piezoelectric sensor 10 is disposed on the surface 120a of the bridge 120, and the six caps 50c are disposed at the portions where the six strings 8c and the piezoelectric sensor 10 are in contact with each other.
- the piezoelectric sensor 10 is provided so that the string 8c faces the first electrode 13a and the surface 120a of the bridge 120 faces the second electrode 13b.
- the string 8 c binds the piezoelectric sensor 10 together with the bridge 120.
- the arrangement intervals of the six piezoelectric sensors 10 are provided in accordance with the arrangement intervals of the six strings 8c.
- the cap 50c is in contact with the first electrode 13a side of the piezoelectric sensor 10 inside the recess 57 formed on the upper surface 54.
- the cap 50c is bound by the string 8c so as to come into contact with the string 8c at the two convex portions 55 provided at both ends of the upper surface 54.
- the force acting in the direction of arrow Q from the string 8c acts on the two corners 55 of the cap 50c in contact with the string 8c.
- the piezoelectric sensor 10 is supported in the state pressed in the arrow Q direction by the string 8c.
- the cap 50c can transmit the vibration of the guitar body bound by the string 8c to the piezoelectric element 11 without attenuating the vibration.
- the pickup 1 can be attached to a classical guitar 200 having a shape different from that of the acoustic guitar 100.
- the pickup 1 attached to the classical guitar 200 is disposed so as to be exposed outside the main body 2 in the same manner as the pickup 1 attached to the acoustic guitar 100.
- the pickup 1 having such a high sound detection sensitivity and the classic guitar 200 in which the pickup 1 is exposed to the outside of the main body 2, not only the direct string vibration from the saddle 16 but also the main body 2 Vibration (sound) reverberated in the internal space, sound emitted from the outer shell of the main body 2 of the instrument, and air vibration (sound) immediately after the sound can be detected.
- the pickup In the conventional pickup installation method, the pickup is held in a closed space surrounded by a saddle groove and a saddle. For this reason, the sound detected by the conventional pickup is dominated by the sound of the string itself directly transmitted through the saddle and the sound transmitted to the closed space in the bridge.
- the vibration transmitted from the string 8c and the saddle 16 to the main body 2 is reflected by the space inside the main body 2, and the outer shell of the main body 2 is mainly used. This sound is generated by vibrating the entire instrument and is different from the sound of the closed space inside the instrument.
- the pickup 1 according to the present embodiment is attached so as to be exposed on the surface of the sound board 2a. For this reason, the vibration of the string 8c transmitted to the saddle 16 is not directly detected.
- the pickup 1 since the pickup 1 is disposed so as to be exposed to the outside, it is possible to reduce the occurrence of howling due to the circulation of reverberant sound when an electrical amplifying device such as an amplifier is used. Furthermore, it is possible to greatly reduce the internal reverberation sound and noise in the middle range, which is a problem with the conventional pickup installation method.
- the pickup 1 when the pickup 1 is disposed so as to be exposed on the surface 120 a of the bridge 120, the pickup 1 reverberates inside the main body 2, and vibration (sound) transmitted to the sound board 2 a and the bridge 120 is transmitted from the saddle 16 to the bridge 120.
- the minute vibration (sound) of the string 8c can be detected.
- the pickup 1 can also detect the vibration (sound) transmitted to the saddle 16 and the bridge 120 and the entire instrument including the neck 4 and the outer shell vibration (sound) of the instrument that vibrates external air. In other words, vibration can be detected centering on the sound of the classical guitar 200 that is actually being listened to by a person, that is, so-called raw sound.
- the piezoelectric sensor 10 of the pickup 1 is directly pressed by the six strings 8c at the position of each piezoelectric element 11. For this reason, the difference in the string vibration depending on the installation position of each string 8c can be detected.
- the person who plays the musical instrument listens to the sound of the classical guitar 200 that is actually being listened to and the sound detected by the pickup 1 and amplified by the electric amplifying device, thereby providing a three-dimensional sound. Can be experienced. Such a three-dimensional sound can be realized only when the sound quality heard from the electric amplifying device via the pickup 1 is very similar to the raw sound of the classic guitar 200.
- an intermediate member 15 is provided between the adjacent piezoelectric elements 11 for a predetermined interval. For this reason, the malfunction which detects the vibration of the other string 8c adjacent to the string 8c facing one piezoelectric element 11 can be suppressed, and noise can be reduced.
- the conventional pickup is provided in a closed space between the saddle and the saddle groove.
- the vibration of the string is transmitted to the piezoelectric sensor through the saddle. For this reason, when cutting is performed to replace the saddle or adjust the string height, the pressure applied to the piezoelectric sensor may change, and the sound detection sensitivity may change.
- the pickup 1 according to the present embodiment is provided on the surface 120 a of the fixing portion 122 of the bridge 120. Therefore, even when the saddle is replaced or cut, the piezoelectric sensor 10 and the saddle 16 do not come into contact with each other, so that the sound detection sensitivity of the pickup 1 does not change.
- the pickup 1 according to the present embodiment can be attached later to a classic guitar that does not include the pickup 1. That is, when the owner of the classical guitar desires, the classical guitar can be improved to the classical guitar 200 provided with the pickup 1.
- the pickup 1 of the present embodiment can be attached at a low cost by a simple process of providing the piezoelectric sensor 10 on the surface 120a of the fixed portion 122 and inserting the wiring 20 into the through hole 19.
- the pickup 1 according to this embodiment is assembled by the pressing force of the main body 2 and the string 8c. That is, the pickup 1 according to the present embodiment does not need to use a special assembly member or an adhesive, and can prevent movement of the position of the pickup 1 due to string vibration and separation from the main body 2.
- the pickup 1 since the pickup 1 has a simple structure arranged on the surface 120a of the bridge 120, it is not necessary to change the tension of the strings 8c of the classic guitar 200 and the method of stretching the strings 8c. For this reason, the influence on the sound quality by attaching the pickup 1 is small. In addition, the workability is not lowered when the string 8c is replaced.
- the present invention is applied to the acoustic guitar 100 and the classical guitar 200 as the stringed instrument has been described.
- the present invention can also be applied.
Abstract
Description
図1は、第1の実施形態に係るピックアップ1を備えた弦楽器の一例として、アコースティックギター100を示す外観図である。図2は、アコースティックギター100に取り付けられた本実施形態のピックアップ1の平面図を示す。
Claims (6)
- 弦楽器に用いられ、弦の振動を電気信号に変換するピックアップであって、
前記弦の数に対応して設けられる少なくとも一つの圧電素子と、前記圧電素子の前記弦側に配置される第1電極と、前記第1電極と反対側に配置される第2電極と、を備える圧電センサと、
前記圧電センサと電気的に接続される配線と、
前記圧電センサが前記弦に接触する部分を覆う保護部と、前記保護部と一体に形成され、前記弦とともに前記弦楽器に係止される腕部とを有するキャップと、
を備えることを特徴とするピックアップ。 - 前記キャップは、第1の圧電素子に対向する第1のキャップと、前記第1のキャップとは、別体に設けられ、前記第1の圧電素子と隣接する第2の圧電素子に対向する第2のキャップと、を備えていることを特徴とする請求項1に記載のピックアップ。
- 本体と、
前記本体の表面に沿って張設された弦と、
前記弦の数に対応して設けられる少なくとも一つの圧電素子と、前記圧電素子の前記弦側に配置される第1電極と、前記第1電極と反対の前記本体側に配置される第2電極と、を含み、前記弦の張力によって前記本体との間で押圧され、前記弦の振動を電気信号に変換するピックアップと、
を備え、
前記ピックアップは、前記本体の表面に露出され、且つ、前記弦に押圧されて配置されることを特徴とする弦楽器。 - 前記ピックアップは、前記本体と前記弦との間で前記弦を支持する支持部材と前記本体に前記弦の端部を固定する固定部との間に配置されることを特徴とする請求項3に記載の弦楽器。
- 前記ピックアップは、前記本体に前記弦の端部を固定する固定部の表面に配置されることを特徴とする請求項3に記載の弦楽器。
- 前記ピックアップが前記弦に接触する部分を保護するキャップさらに備えていることを特徴とする請求項3に記載の弦楽器。
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PCT/JP2015/076006 WO2017046843A1 (ja) | 2015-09-14 | 2015-09-14 | ピックアップ及びピックアップを備えた弦楽器 |
CN201580083114.XA CN108140372A (zh) | 2015-09-14 | 2015-09-14 | 拾音器以及具有拾音器的弦乐器 |
JP2017540356A JPWO2017046843A1 (ja) | 2015-09-14 | 2015-09-14 | ピックアップ及びピックアップを備えた弦楽器 |
US15/760,224 US20180254031A1 (en) | 2015-09-14 | 2015-09-14 | Pickup and stringed instrument with pickup |
US15/920,348 US20180204556A1 (en) | 2015-09-14 | 2018-03-13 | Pickup and stringed instrument with pickup |
Applications Claiming Priority (1)
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PCT/JP2015/076006 WO2017046843A1 (ja) | 2015-09-14 | 2015-09-14 | ピックアップ及びピックアップを備えた弦楽器 |
Related Child Applications (1)
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US15/920,348 Continuation US20180204556A1 (en) | 2015-09-14 | 2018-03-13 | Pickup and stringed instrument with pickup |
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WO2017046843A1 true WO2017046843A1 (ja) | 2017-03-23 |
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PCT/JP2015/076006 WO2017046843A1 (ja) | 2015-09-14 | 2015-09-14 | ピックアップ及びピックアップを備えた弦楽器 |
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US (2) | US20180254031A1 (ja) |
JP (1) | JPWO2017046843A1 (ja) |
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JPWO2021095155A1 (ja) * | 2019-11-13 | 2021-05-20 |
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CN108140372A (zh) * | 2015-09-14 | 2018-06-08 | 片山朗 | 拾音器以及具有拾音器的弦乐器 |
CN108986774A (zh) * | 2018-09-13 | 2018-12-11 | 金丘科技(深圳)有限公司 | 固定器以及弦乐器 |
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CN108140372A (zh) | 2018-06-08 |
JPWO2017046843A1 (ja) | 2018-05-31 |
US20180204556A1 (en) | 2018-07-19 |
US20180254031A1 (en) | 2018-09-06 |
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