WO2019146002A1 - Dispositif de mise en sourdine - Google Patents

Dispositif de mise en sourdine Download PDF

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Publication number
WO2019146002A1
WO2019146002A1 PCT/JP2018/001988 JP2018001988W WO2019146002A1 WO 2019146002 A1 WO2019146002 A1 WO 2019146002A1 JP 2018001988 W JP2018001988 W JP 2018001988W WO 2019146002 A1 WO2019146002 A1 WO 2019146002A1
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WO
WIPO (PCT)
Prior art keywords
sound
attachment
weak
passage
low
Prior art date
Application number
PCT/JP2018/001988
Other languages
English (en)
Japanese (ja)
Inventor
得一 井上
Original Assignee
株式会社鈴木楽器製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社鈴木楽器製作所 filed Critical 株式会社鈴木楽器製作所
Priority to CN201880086838.3A priority Critical patent/CN111615726A/zh
Priority to PCT/JP2018/001988 priority patent/WO2019146002A1/fr
Priority to JP2019567432A priority patent/JP7132635B2/ja
Publication of WO2019146002A1 publication Critical patent/WO2019146002A1/fr

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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
    • G10D7/00—General design of wind musical instruments
    • G10D7/12—Free-reed wind instruments
    • 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
    • G10D9/00—Details of, or accessories for, wind musical instruments
    • G10D9/06—Mutes

Definitions

  • the present invention relates to a weak sound device capable of reducing the volume of the sound emitted by the musical instrument by being used for musical instruments.
  • woodwind instruments and brass instruments as musical instruments that generate sounds using so-called leads. These instruments can reduce their volume by limiting the vibration of the reed by reducing the amount of air flow to make the reed vibrate. This is used to take noise into consideration when practicing the instrument.
  • a weak sound device capable of reducing the volume is disclosed.
  • This relates to a low sound device that can be attached to an ocarina, but it is “a breath pressure adjusting low sound device provided in the mouth of a wind instrument, before the breath reaches the wind instrument, and A breath pressure adjusting low-sound device, characterized by comprising a relief hole and a windway width control unit in front of the mouth of the wind instrument.
  • a weak sound device that reduces the volume of sound generated by limiting the amount of air flowing into the instrument in advance
  • the amount of air flowing into the instrument is limited in practice for playing the instrument. The thing is different from the user's sense at the time of playing the original instrument, and it is not appropriate to use it to practice the instrument.
  • the present invention has been made in view of the above-mentioned point, and an object of the present invention is to provide a weak sound device which is as different as possible from the feeling of the user when playing an ordinary musical instrument.
  • the weak sound device of the first aspect is attached to an instrument that generates a sound by vibrating a lead by circulating exhalation, and distributes the sound generated by the lead.
  • the passage portion comprising an attachment portion having an intake portion and a passage portion attached to the attachment portion to allow the sound taken in from the intake portion to pass and reduce the volume of the sound;
  • the cross section decreases stepwise or steplessly.
  • the mounting portion has a mounting upper portion and a mounting lower portion.
  • the low-sound part has a plurality of cells, and at least one of the plurality of cells has a thin plate with a missing circle.
  • the channel portion has a member and a wall portion, and the passage portion is constituted by the side member and the wall portion, and has a shape that is spirally wound from the outside to the inside of the cell.
  • the weak sound portion has an upper weak sound member and a lower weak sound member
  • the upper weak sound member includes at least a plurality of upper barrier portions and the lower weak sound member It further has at least a plurality of lower barrier portions, and the plurality of upper barrier portions and the plurality of lower barrier portions constitute a passage portion by being alternately combined.
  • the present invention is configured and operates as described above, it is possible to provide a low-tone apparatus having no difference in playing feel from the conventional one when playing an instrument.
  • A is a plan view of the instrument.
  • B is a front view of the instrument.
  • C is the bottom view of the instrument.
  • A is a rear front view seen from the rear with the mounting portion attached to the instrument.
  • B is the top view of the state which attached the attachment part to the musical instrument.
  • C is a cross-sectional view taken along line IVC-IVC of B.
  • A is a perspective view of the mounting upper part.
  • B is a plan view of the mounting upper part.
  • C is a bottom view of the attachment top.
  • D is a side view of the mounting top.
  • A is a perspective view of the lower part of attachment.
  • B is a plan view of the lower portion attached.
  • C is a bottom view of the mounting lower part.
  • D is a side view of the mounting lower part.
  • A is a perspective view of a cell.
  • B is a left side view of the cell.
  • C is a right side view of the cell.
  • D is a front view of the cell.
  • the side view of the weak sound device of the second embodiment as viewed from the rear with the instrument attached.
  • A is a perspective view of the second attachment upper part and the upper weak sound member which were united.
  • B is a plan view of an integrated second mounting upper portion and an upper damping member.
  • C is a side view of the integrated second mounting upper portion and the upper damping member.
  • D is a bottom view of the 2nd attachment top and the upper weak sound member which were united.
  • A is a perspective view of the 2nd attachment lower part and lower sound attenuating member which were united.
  • B is the top view of the 2nd attachment lower part and lower sound absorption member which were united.
  • C is a side view of the integrated second lower and lower damping members in one body.
  • D is a bottom view of the 2nd attachment lower part and lower sound attenuating member which were united.
  • the low sound apparatus 10 of the first embodiment will be described.
  • the weak sound device 10 in the first embodiment is used by being attached to the musical instrument 100, and the so-called weak sound is applied to reduce the volume of the sound emitted by the musical instrument 100.
  • the low sound device 10 has an attachment portion 20 for attachment to the musical instrument 100, and a so-called low intensity low sound portion 30 attached to the attachment portion 20 to reduce the volume generated by the musical instrument 100 (see FIG. 1).
  • the musical instrument 100 is preferably a harmonica, and has a buzzing sound lead 121a which is pronounced when the user blows his / her breath, and a sound absorbing lead 122a which is pronounced when the user breathes his / her breath at the upper and lower portions of the main body 110.
  • the buzzing sound lead 121a and the sound absorbing lead 122a are arranged such that a user (not shown) blows air or sucks air into the first opening 111a where the user sings. ing.
  • the opening 111b which is adjacent to the opening 111a which is the opening 11a which is the opening is separated from the opening 111a of the one by the partition wall, and the sounding lead 121b and the sound absorbing lead 122b are respectively separated therefrom. And are arranged.
  • the adjacent openings 111c are separated by a partition wall, and a buzzing sound lead 121c and a sound absorbing lead 122c are disposed in each of them.
  • the adjacent openings 111 d are also separated by the partition walls, and the buzzing sound leads 121 d and the sound absorbing leads 122 d are disposed in each of them.
  • the mounting portion 20 has a mounting upper portion 210 and a mounting lower portion 220.
  • the attachment upper portion 210 is a cover that can be attached to the upper portion of the musical instrument 100 literally using a fixing tool such as a screw. Therefore, it can be attached so that the upper part of the musical instrument 100 may be covered. Therefore, it is preferable that the instrument 100 have substantially the same shape.
  • the upper attachment portion 210 of the attachment portion 20 is an upper intake portion 211a, 211b for taking in the sound generated by each of the buzzing sound leads 121a, 121b, 121c, 121d, 121e, 121f, 121g, 121h, 121i, 121j in the musical instrument 100. , 211c, 211d, 211e, 211f, 211g, 211h, 211i, and 211j, respectively. Moreover, the connection parts 215 and 215 for connecting with the weak sound part 30 are arrange
  • the upper intake portions 211a, 211b, 211c, 211d, 211e, 211f, 211g, 211h, 211i, and 211j function as paths for transmitting the sound generated by each blowing lead to the weak sound portion 30, respectively. It is a thing.
  • the mounting upper portion 210 has a plurality of engaging upper portions 216 in the form of hooks in a sectional view.
  • One of the engaging upper parts 216 is for engaging and connecting with the cell engaging upper part 331 in the cell 310 a of the weak sound portion 30. As described later, the same applies to the other cells 310b, 310c, 310d, 310e, 310f, 310g, 310h, 310i, and 310j.
  • the lower attachment portion 220 is a cover that can be attached using a fixing tool such as a screw so as to be literally applied to the lower portion of the musical instrument 100. Therefore, it can be attached so as to cover the lower part of the musical instrument 100. Therefore, it is preferable that the instrument 100 have substantially the same shape.
  • the lower attachment portion 220 of the attachment portion 20 is a lower intake portion 221a, 221b, 221c, which takes in the sound generated by the respective sound absorbing leads 122a, 122b, 122c, 122d, 122e, 122f, 122g, 122h, 122i, 122j in the musical instrument 100.
  • 221 d, 221 e, 221 f, 221 g, 221 h, 221 i, and 221 j are disposed at both ends thereof.
  • Each of the lower intake portions is a passage which is independent and surrounded by a wall when attached to the musical instrument 100.
  • the lower intake portions 221a, 221b, 221c, 221d, 221e, 221f, 221g, 221h, 221i, 221j play a role as a passage for transmitting the sound generated by each sound absorption lead to the weak sound portion 30, respectively. is there.
  • the mounting lower portion 220 has an engaging lower portion 226 shaped like a hook in cross section.
  • the engagement lower portion 226 is for engaging and connecting with the cell engagement lower portion 332 in the cell 310 a of the weak sound portion 30. As described later, the same applies to the other cells 310b, 310c, 310d, 310e, 310f, 310g, 310h, 310i, and 310j.
  • the low sound part 30 has a plurality of cells 310a, 310b, 310c, 310d, 310e, 310f, 310g, 310h, 310i, 310j. This is through the openings 111a, 111b, 111c, 111d, 111e, 111f, 111g, 111h, 111i, 111j of the musical instrument 100, and the intakes 211a, 211b, 211c, 211d, 211e, 211f, 211g, 211h, and the like in the mounting upper portion 210.
  • the reference numerals 211i and 211j correspond to the intake portions 221a, 221b, 221c, 221d, 221e, 221f, 221g, 221h, 221i, and 221j in the lower attachment portion 220, respectively.
  • the buzzing sound lead 121a or the sound absorbing lead 122a emits a sound.
  • the upper intake portion 211a of the attachment upper portion 210 of the attachment portion 20 takes in the sound and transmits the sound to a cell 310a described later
  • the sound absorbing lead 122a emits a sound
  • the lower intake portion 221a of the lower attachment portion 220 of the mounting portion 20 takes in the sound and transmits the sound to a cell 310a described later.
  • the cell 310a corresponds to the upper intake portion 211a in the attachment upper portion 210 and the lower intake portion 221a in the attachment lower portion 220, the sound generated by the buzzing sound lead 121a and the sound absorbing lead 122a is 310a can be incorporated.
  • the cell 310a can take in the sound generated by the buzzing sound lead 121a and the sound absorbing lead 122a from the upper intake portion 211a in the attachment upper portion 210 and the lower intake portion 221a in the attachment lower portion 220.
  • the volume of the taken-in sound can be reduced.
  • the cell 310b corresponds to the upper intake portion 211b in the attachment upper portion 210 and the lower intake portion 221b in the attachment lower portion 220, and can take in the sound generated by the buzzing sound lead 121b and the sound absorbing lead 122b. is there.
  • the volume of the taken-in sound can be reduced.
  • 310c, 310d, 310e, 310f, 310g, 310h, 310i and 310j are the volume of the taken-in sound.
  • the cell 310 a has a circular shape in a side view as a whole, and the cell opening 320 is connected to the upper intake portion 211 a in the mounting upper portion 210 and the lower intake portion 221 a in the mounting lower portion 220. It has the magnitude
  • the passage portion 322 constituted by the side member 311 and the wall-like wall portion 321 spirals from the outside to the inside in side view It has a configuration in which it is wound in a shape, and the distances z1, z2, z3 and z4 of the wall portions 321 are configured such that the distances become closer as it goes to the inside. That is, the cross section of the passage portion 322 decreases steplessly. Further, the spiral central portion configured by the wall portion 321 has a hole portion 330 which becomes a hole so as to transmit sound. As described above, it is preferable that the cross section of the passage portion 322, which is a configuration in which the distance becomes closer toward the inside, is decreased in stages.
  • a substantially semicircular connecting portion 312 having a gap in the middle is disposed slightly outward so that the outer shape of the side member 311 is edged. It has a wall shape projecting to the (opposite side).
  • An outer lid 350 described later is for fitting.
  • the other adjacent cell 310b has the connection portion 312, and the connection portion 312 is used for connection with the adjacent cell 310a, and is fitted to the wall portion 321 in the adjacent cell 310a.
  • the other cell 310b and the cell 310a are connected by combining.
  • the cell engagement upper portion 331 is for engaging and connecting with the hook-like engagement upper portion 216 of one of the mounting upper portions 210 in cross section.
  • the cell engagement lower portion 332 is for engaging and connecting with the engagement lower portion 226 in the mounting lower portion 220.
  • the low sound portion 30 further has outer lids 350 and 350 and a middle lid 360.
  • the outer lid portion 350 has a circular shape in a side view as a whole, and has an outer lid opening 351 serving as a vent. Further, an outer lid hole portion 352 serving as a hole is provided at the center of the outer lid portion 350, and a mandrel 370 described later is inserted.
  • the outer cover portion 350 has a semicircular shape, has a wall portion 353 surrounding the periphery of the outer cover portion 350, and is configured to be fitted with the connection portion 312 in the cell 310a.
  • the outer lid 350 is engaged with the connection portions 215 and 215 in the attachment upper portion 210 of the attachment portion 20 and the second connection portions 225 and 225 in the attachment lower portion 220 of the attachment portion 20. Have.
  • the middle lid portion 360 is thin plate-like and has a substantially semicircular shape as a whole, and is erected so as to border the semicircular outer shape of the middle lid portion 360 in order to connect with the cell 310 a
  • the outer lid connection portion is erected so as to border the semicircular outer shape of the middle lid portion 360, and is substantially semicircular outer lid connection portion And 362.
  • the inner lid opening 363 constitutes an opening of the outer lid opening 351 and the opening 1 which will be a vent when combined with the outer lid 350.
  • an inner cover hole 364 to be a hole is provided substantially at the center of the inner cover 360.
  • the outer lid portion 350, the cells 310a, 310b, 310c, 310d, 310e, 310f, 310g, 310h, 310i, 310j, the middle lid portion 360, and the outer lid portion 350 are sequentially arranged,
  • the weak sound portion 30 is configured (see FIG. 7). That is, the stems 370 pass through the holes 330 in the cells 310 a, 310 b, 310 c, 310 d, 310 e, 310 f, 310 g, 310 h, 310 i, 310 j, the inner lid hole 364 and the outer lid holes 352, 352.
  • each hole 330 is larger than the diameter of the mandrel 370, the sound volume is sufficiently reduced from the hole 330 in the cell 310a to another adjacent cell 310b.
  • the cells 310a, 310b, 310c, 310d, 310e, 310f, 310g, 310h, 310i, 310j propagate along the holes 330, propagate through the inner lid hole 364 and further open the inner lid opening 363 and the vent hole It can leak from the outer lid opening 351 which
  • the low sound device 10 of the above configuration is attached to the musical instrument 100.
  • a user blows air into the opening 111a serving as a song
  • the buzzing sound lead 121a vibrates to generate a sound.
  • This sound is propagated to the upper intake portion 211 a and enters the passage portion 322 of the cell 310 a in the low sound portion 30.
  • the passage portion 322 has a configuration in which the outside is spirally wounded from the outside, and the distances z1, z2, z3 and z4 of the wall portions 321 become closer as they go inside.
  • the volume gradually decreases, and the weakening is achieved by the time the sound leaks from the hole 330 in the cell 310a.
  • This attenuated sound propagates along the holes 330 in the cells 310a, 310b, 310c, 310d, 310e, 310f, 310g, 310h, 310i, 310j, and propagates through the inner lid hole portion 364 and further It can leak from the inner lid opening 363 and the outer lid opening 351 which becomes a vent.
  • weakening is sufficiently achieved.
  • the inner lid opening 363 and the outer lid opening 351 serving as a vent are not only leaking the sound weakened as described above, but also vibrating the buzzing leads and the respective sound absorbing leads. In order to prevent the inflow and outflow of the air.
  • the sound absorbing lead 122 a vibrates to generate a sound
  • the sound is propagated to the lower intake portion 221 a in the mounting lower portion 220 and enters the passage portion 322 of the cell 310 a in the low sound portion 30.
  • the rest is the same.
  • the musical instrument 100 is suitable not only for the harmonica but also for the keyboard harmonica or the accordion (not shown).
  • the weak sound device 50 in the second embodiment is used by being attached to the musical instrument 100, and the so-called weak sound is applied to reduce the volume of the sound emitted by the musical instrument 100.
  • the second weak sound device 50 has a second attachment portion 60 for attaching to the musical instrument 100, and a so-called weak second sound portion 70 for reducing the volume generated by the musical instrument 100 (see FIG. 9). Note that, since the musical instrument 100 has already been described, the same reference numerals will be assigned and the description thereof will be omitted.
  • the second attachment portion 60 has a second attachment upper portion 61 and a second attachment lower portion 62.
  • the second attachment upper portion 61 is a cover which can be attached to the upper portion of the musical instrument 100 literally using a fixing tool such as a screw. Therefore, it can be attached to cover the upper part of the musical instrument 100.
  • the second attachment upper portion 61 in the attachment portion 60 is a second intake portion 61a for taking in the sound generated by each of the buzzing sound leads 121a, 121b, 121c, 121d, 121e, 121f, 121h, 121i, 121j in the musical instrument 100, 61b, 61c, 61d, 61e, 61f, 61g, 61h, 61i, 61j.
  • Each of the second intake portions is a passage which is independent and surrounded by a wall. Therefore, each of the second intake units serves as a passage that takes in the sound generated by each of the buzzing leads and transmits the sound to the second weak sound portion 70
  • the second attachment lower portion 62 is a cover which can be attached to the lower portion of the musical instrument 100 literally using a fixing tool such as a screw. Therefore, it can be attached to the lower part of the instrument 100.
  • the second attachment lower portion 62 in the attachment portion 60 is a third intake portion 62a, 62b for taking in the sound generated by each of the sound absorbing leads 122a, 122b, 122c, 122d, 122e, 122f, 122h, 122i, 122j in the musical instrument 100. , 62c, 62d, 62e, 62f, 62g, 62h, 62i, 62j.
  • Each of the third intakes is a passage which is independent and surrounded by a wall. Therefore, each of the third intakes takes in the sound generated by each of the sound absorption leads, and each of the third intakes serves as a passage for transmitting to the second weak sound portion 70. .
  • the second low sound portion 70 has an upper low sound member 71 and a lower low sound member 72.
  • the second attachment upper portion 61 and the upper low noise member 71 are integrated, and the second attachment lower portion 62 and the lower low noise member 72 are integrated. They each constitute part of the case.
  • the rear openings 77a, 77b, 77c, 77d, 77e, 77f, 77g, 77h, 77i, 77j serving as discharge ports are provided.
  • the rear openings 77a, 77b, 77c, 77d, 77e, 77f, 77g, 77h, 77i, 77j are opened not only for leaking the sound weakened as described above, but also for blowing each sound This is also to prevent the inflow and outflow of air to vibrate the leads and the respective sound absorbing leads.
  • the upper weak sound member 71 has the other passages 75a, 75b, 75c, 75d, and 75e, into which the sounds from the second intake portions 61a, 61b, 61c, 61d, 61e, 61f, 61g, 61h, 61i and 61j flow respectively. It has a portion of 75f, 75g, 75h, 75i, 75j. Also in the lower damping member 72, the other passages 75a, 75b, 75c, 75d into which the sound from the third intakes 62a, 62b, 62c, 62d, 62e, 62f, 62g, 62h, 62i, 62j respectively flow.
  • the upper damping member 71 has a curved surface. However, it is not limited to this shape. Further, the upper damping member 71 has a first upper barrier portion 76, a second upper barrier portion 77, and a third upper barrier portion 78 which have a plate shape. Further, in the order of the first upper barrier portion 76, the second upper barrier portion 77, and the third upper barrier portion 78, the distance of hanging from the upper weak sound member 71 is shortened. In addition, the first upper barrier 76 and the second upper barrier are arranged to align in the width direction also in the other passage portions 75a, 75b, 75c, 75d, 75e, 75f, 75g, 75h, 75i, 75j. The third upper barrier portion 78 is disposed at the same position. The first upper barrier portion 76, the second upper barrier portion 77, and the third upper barrier portion 78 are each arranged to hang down from the upper weak sound member 71, but are not in contact with the lower weak sound member 72. There is a gap between the
  • the lower damping member 72 has a curved surface. However, it is not limited to this shape. Further, the lower damping member 72 has a first lower barrier portion 86, a second lower barrier portion 87, and a third lower barrier portion 88 which have a plate shape. In addition, the height erected from the lower sound absorbing member 72 is gradually reduced in the order of the first lower barrier portion 86, the second lower barrier portion 87, and the third lower barrier portion 88. Further, they are also arranged at the same positions so as to be aligned in the width direction also in the other passage portions 75a, 75b, 75c, 75d, 75e, 75f, 75g, 75h, 75i, 75j.
  • the first lower barrier portion 86, the second lower barrier portion 87, and the third lower barrier portion 88 are each arranged to stand upright from the lower weak sound member 72, but are not in contact with the upper weak sound member 71 There is a gap between the As described above, the first upper barrier portion 76, the second upper barrier portion 77, and the third upper barrier portion 78 are disposed so as to hang down from the upper weak sound member 71, respectively. There is no predetermined gap.
  • the other passage portion 75a has a gap between the first lower barrier portion 86 and the upper weak sound member 71, a cross section (z10) of the first lower barrier portion 86 and the first upper barrier portion 76, and a first upper portion A gap between the barrier 76 and the lower damping member 72, a cross section (z11) of the first upper barrier 76 and the second lower barrier 87, and a gap between the second lower barrier 87 and the upper damping member 71;
  • the other passage portion 75 a passes through the first upper barrier portion 76 while passing over the first lower barrier portion 86 and further Over the lower barrier portion 87, under the second upper barrier portion 77 and further over the third lower barrier portion 88, under the third upper barrier portion 78 to reach the rear opening 77a.
  • the distance z12 between the portion 77, the distance z13 between the second upper barrier portion 77 and the third lower barrier portion 88, and the distance z14 between the third lower barrier portion 88 and the third upper barrier portion 78 gradually go through It is arranged to approach.
  • the plurality of upper barrier portions described above and the plurality of lower barrier portions form another passage portion 75a by combining them alternately, and further, the cross section (z10, z11, z12 of the other passage portion 75a) , Z13, z14) gradually decrease. It is considered that this can reduce the volume.
  • the rear openings 77a, 77b, 77c, 77d, 77e, 77f, 77g, 77h, 77i, 77j are opened not only for leaking the sound weakened as described above, It is also for not disturbing the inflow and outflow of air for vibrating the buzzing sound leads and the respective sound absorbing leads.
  • the weak sound device 50 of the second embodiment configured as described above is attached to the musical instrument 100.
  • a user blows air into the opening 111a serving as a song
  • the buzzing sound lead 121a vibrates to generate a sound.
  • This sound is propagated to the second intake portion 61 a of the second attachment upper portion 61 of the second attachment portion 60 and is connected to the second intake portion 61 a of the upper weak sound member 71 of the second weak sound portion 70.
  • Get into The other passage portion 75a passes through the first upper barrier portion 76 while passing over the first lower barrier portion 86 as described above, and further passes through the second upper barrier portion 77 while passing over the second lower barrier portion 87. Further, while passing over the third lower barrier portion 88, the third upper barrier portion 78 is penetrated to reach the rear opening 77a.
  • the distance z12 between the portion 77, the distance z13 between the second upper barrier portion 77 and the third lower barrier portion 88, and the distance z14 between the third lower barrier portion 88 and the third upper barrier portion 78 gradually increase.
  • the distances (z10, z11, z12, z13, z14) gradually approach toward the rear of the low noise device 50, the cross sections of the other passage portions 75a gradually decrease.
  • the volume is gradually reduced, and weakening is achieved when the sound leaks from the rear opening 77a.
  • the sound absorbing lead 122 a vibrates to generate a sound, and the sound is transmitted to the third intake portion 62 a of the lower sound absorbing member 72, and the third intake of the lower sound absorbing member 72 in the second weak sound portion 70. It enters into another passage portion 75a connected to the portion 62a. The rest is the same.
  • the weak sound device 50 of the second embodiment to the musical instrument 100, it is possible to reduce the volume of the sound generated when playing the musical instrument. It is also the same that the instrument 100 is particularly suitable when using a harmonica.
  • the harmonica is shown as an example of the musical instrument 100, it is also possible to use a keyboard harmonica or an accordion.
  • the buzzing sound leads and sound absorbing leads that are sound generation sources and the respective passage portions in the weak sound device are independent, the respective passage portions in the sound weak device without the sound emitted from the sound generation source flowing to the other Can flow into the In addition, it does not prevent that the sound which came out of the several sound generation source collectively flows in into 1 passage part.

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  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
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  • Electrophonic Musical Instruments (AREA)

Abstract

Le problème décrit par la présente invention est de pourvoir à un dispositif de mise en sourdine apte à créer une sensation de jeu aussi proche que possible de la sensation apportée par la pratique habituelle d'un instrument. La solution selon l'invention porte sur un dispositif de mise en sourdine qui comprend : une partie de fixation conçue pour être fixée à un instrument de musique qui crée un son par l'intermédiaire d'un souffle mis en circulation pour faire vibrer une anche, la partie de fixation ayant une partie entrée destinée à faire circuler le son créé par l'anche; et une partie de mise en sourdine conçue pour être fixée à la partie de fixation, la partie de mise en sourdine ayant un passage qui amène le son introduit dans la partie entrée à le traverser, ce qui permet de réduire le volume du son. La section transversale du passage diminue progressivement ou graduellement.
PCT/JP2018/001988 2018-01-23 2018-01-23 Dispositif de mise en sourdine WO2019146002A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201880086838.3A CN111615726A (zh) 2018-01-23 2018-01-23 弱音装置
PCT/JP2018/001988 WO2019146002A1 (fr) 2018-01-23 2018-01-23 Dispositif de mise en sourdine
JP2019567432A JP7132635B2 (ja) 2018-01-23 2018-01-23 弱音装置

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Application Number Priority Date Filing Date Title
PCT/JP2018/001988 WO2019146002A1 (fr) 2018-01-23 2018-01-23 Dispositif de mise en sourdine

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WO2019146002A1 true WO2019146002A1 (fr) 2019-08-01

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Citations (6)

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US1705076A (en) * 1929-03-12 Ferdinand strauss
US20060225557A1 (en) * 2005-04-06 2006-10-12 Rolf Berschneider Harmonica horn
JP3153666U (ja) * 2009-05-22 2009-09-17 孝造 荒瀬 木管楽器用弱音具
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