WO2018096720A1 - Electronic bass drum - Google Patents

Electronic bass drum Download PDF

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Publication number
WO2018096720A1
WO2018096720A1 PCT/JP2017/022743 JP2017022743W WO2018096720A1 WO 2018096720 A1 WO2018096720 A1 WO 2018096720A1 JP 2017022743 W JP2017022743 W JP 2017022743W WO 2018096720 A1 WO2018096720 A1 WO 2018096720A1
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WO
WIPO (PCT)
Prior art keywords
head
bass drum
electronic bass
hitting
electronic
Prior art date
Application number
PCT/JP2017/022743
Other languages
French (fr)
Japanese (ja)
Inventor
良彰 森
Original Assignee
Ａｔｖ株式会社
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Filing date
Publication date
Application filed by Ａｔｖ株式会社 filed Critical Ａｔｖ株式会社
Publication of WO2018096720A1 publication Critical patent/WO2018096720A1/en

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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
    • G10D13/00—Percussion musical instruments; Details or accessories therefor
    • G10D13/10—Details of, or accessories for, percussion musical instruments
    • G10D13/26—Mechanical details of electronic drums
    • 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
    • G10D13/00—Percussion musical instruments; Details or accessories therefor
    • G10D13/01—General design of percussion musical instruments
    • G10D13/02—Drums; Tambourines with drumheads
    • 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
    • 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
    • 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

Definitions

  • the present invention relates to an electronic bass drum that generates sound by electrically detecting vibration of a hitting surface by hitting the hitting surface with a beater that swings by a pedal operation by a player.
  • an electronic bass drum that generates sound by electrically detecting vibration of the hitting surface by hitting the hitting surface with a beater that swings by a pedal operation by a player.
  • an acoustic buffer is provided by disposing a shock absorbing material made of an elastic body on the back side of a hitting portion hit by a beater in a head and disposing a hitting sensor for detecting head vibration on the outside thereof.
  • An electronic bass drum that is close to the performance of a bass drum is disclosed.
  • the present invention has been made to cope with the above problems, and an object of the present invention is to provide an electronic bass drum capable of obtaining a performance feeling closer to that of an acoustic drum.
  • the present invention is characterized by a hitting mechanism having a head that forms a hitting surface hit by a player, a beater that hits the hitting surface through a pedal operation by the player, and a hitting surface of the hitting surface.
  • a shock absorber disposed around the hitting portion hit by the beater on the hitting surface on the back surface side and a vibration sensor for detecting head vibration are provided.
  • the electronic bass drum is supported by the buffer around the hitting portion hit by the beater on the hitting surface, the back side of the hitting portion is hollow, and the hitting portion itself is directly on the back side. Therefore, the performer can perform with a performance sensation closer to that of an acoustic drum.
  • Another feature of the present invention is that, in the electronic bass drum, the vibration sensor is disposed outside the hitting portion of the hitting surface and inside the buffer.
  • the electronic bass drum has a vibration sensor disposed outside the hitting portion on the hitting surface and inside the shock absorber. Vibration can be detected with high accuracy.
  • a shock absorbing material is disposed on the back side of the hitting portion by the beater, and the impact sensor detects the vibration of the head via the shock absorbing material, so that the head vibration propagates to the impact sensor.
  • the vibration is attenuated or delayed by the buffer material, and vibration due to weak tapping on the head may not be detected.
  • the conventional electronic bass drum there is a problem in that a sound that is faithful to the performance operation of the performer is not produced and a feeling of performance may be uncomfortable.
  • the hitting portion hit by the beater on the hitting surface is not directly supported from the back side, so that the head can be vibrated even with weak hitting, and the vibration of the head can be reduced. Propagation directly to the vibration sensor without going through a shock absorber, allowing the performer to perform with a performance feeling closer to that of an acoustic drum and enabling more faithful pronunciation to the player's tapping operation Can do.
  • the buffer body in the electronic bass drum, has an inner edge portion surrounding the hit portion formed in an annular shape.
  • the electronic bass drum propagates radially around the hitting portion of the head since the inner edge portion surrounding the hitting portion of the buffer body is formed in an annular shape.
  • the vibration can be propagated, absorbed, or reflected evenly, and deviation (unevenness) can be prevented from occurring in the vibration propagating through the head.
  • the buffer body has a thickness of 20 mm or more in the head forming direction.
  • the shock absorber is formed with a thickness of 20 mm or more in the head forming direction. It is possible to stably support, and to effectively attenuate the vibration propagating through the head.
  • the buffer body has a thickness of 100 mm or less in the head forming direction.
  • the electronic bass drum can stably support the head and the head since the buffer body has a thickness of 100 mm or less in the head forming direction.
  • the structure of the electronic bass drum can be simplified and reduced in weight while effectively attenuating the propagating vibration.
  • the buffer body is made of a resin foam material, the moldability is improved, so that the surface pressure against the head can be stabilized and the productivity can be improved.
  • Another feature of the present invention is that, in the electronic bass drum, the buffer body is not in contact with the inner peripheral portion of the cylindrical shell that supports the outer edge portion of the head.
  • the electronic bass drum is configured such that the shock absorber is not in contact with the inner peripheral portion of the cylindrical shell that supports the outer edge of the head.
  • the elastic deformation is not hindered, and wear due to rubbing of the buffer against the head can be prevented.
  • the electronic bass drum can prevent the vibration propagated through the head from being reflected by the shell, and can accurately detect the vibration caused by the tapping.
  • the shock absorber is composed of an elastic body having a rebound resilience of 50% or less.
  • the electronic bass drum has an elastic body close to the head of the acoustic drum because the buffer body is formed of an elastic body having a rebound resilience of 50% or less. Can be given.
  • the impact resilience of the buffer body is constituted by an elastic body of 10% or more.
  • the rebound resilience is a ratio of the height after rebounding to the height when the object falls when a falling object of a predetermined mass and height collides with the test piece, and this numerical value (R%) The smaller the value, the smaller the rebound, and the larger the value, the greater the rebound.
  • FIG. 2 is a perspective view showing the electronic bass drum shown in FIG. 1 with a head, a hoop, and a tapping mechanism omitted. It is sectional drawing which shows the outline of the internal structure of the electronic bass drum shown in FIG. It is sectional drawing which shows the outline of the internal structure of the electronic bass drum which concerns on the modification of this invention.
  • FIG. 5 is a front view showing the electronic bass drum shown in FIG. 4 with a head, a hoop, and a tapping mechanism omitted. It is sectional drawing which shows the outline of the internal structure of the electronic bass drum which concerns on the other modification of this invention. It is sectional drawing which shows the outline of the internal structure of the electronic bass drum which concerns on the other modification of this invention.
  • FIG. 1 is a perspective view showing an outline of an external configuration of an electronic bass drum 100 according to the present invention.
  • 2 is a perspective view showing the electronic bass drum 100 shown in FIG. 1 with the head 101, the hoop 105, and the tapping mechanism 130 omitted.
  • FIG. 3 is a cross-sectional view showing an outline of the internal configuration of the electronic bass drum 100 shown in FIG.
  • the electronic bass drum 100 is an electronic percussion instrument that generates an electronic musical tone by detecting vibration when the beater 131 strikes the hitting surface 101a of the head by a pedal operation by a player (not shown).
  • the electronic bass drum 100 includes a head 101.
  • the head 101 is a component that vibrates and elastically deforms when hit by a beater 131 (described later) operated by a performer, and is configured by forming a cloth material or a resin material into a sheet shape or a thin plate shape.
  • the head 101 is composed of a transparent or translucent resin sheet material or thin plate material, or a cloth material or resin material formed in a mesh shape.
  • the head 101 is configured by forming a mesh-like sheet body into a circle in a plan view. The outer edge of the head 101 is held by a head frame 102.
  • the head frame 102 is a component for arranging the head 101 on the shell 103 in a tensioned state, and is configured by forming a metal material or a resin material in an annular shape.
  • the head frame 102 is fitted to the outer peripheral portion of the shell 103 while holding the outer edge portion of the head 101, and the annular upper surface is pressed by the hoop 105 in the other state.
  • the shell 103 is a component that supports the head 101, the buffer body 112, and the vibration sensor 114, and is configured by forming a metal material, a resin material, or wood into a cylindrical shape.
  • One end (upper side in the figure) of the shell 103 is closed by the head 101, and the other end (lower side in the figure) is closed by the shell cover 104.
  • the surface exposed to the outside of the shell 103 constitutes the striking surface 101a
  • the surface facing the inside of the shell 103 constitutes the back surface 101b.
  • the shell cover 104 is a component for covering the opposite side of the shell 103 to the head 101 side, and is configured by forming a cloth material or a resin material into a sheet shape or a thin plate shape.
  • the shell cover 104 is configured by forming a mesh-like sheet body in a circular shape in plan view, like the head 101.
  • the hoop 105 is a part for pressing the upper surface of the head frame 102 to stretch the head 101 on the shell 103, and is configured by forming a metal material into a stepped cylindrical shape.
  • the hoop 105 has an end portion on one side (upper side in the drawing) that protrudes from an upper end portion of the shell 103 on which the head 101 is stretched, and an end portion side on the other side (lower side in the drawing) projects radially outward. It is formed in a cylindrical shape protruding from the lower end of 102.
  • the hoop 105 is attached to a lug 107 via a tension bolt 106 at a portion projecting radially outward on the other end side.
  • the tension bolt 106 is a part for pressing the hoop 105 against the upper surface of the head frame 102, and is composed of a bolt having a male screw formed on the outer periphery of a metal shaft.
  • the tension bolt 106 is fastened to the female screw of the lug 107 in a state where the tension bolt 106 penetrates a portion where the outer diameter of the hoop 105 protrudes.
  • the head 101 is pressed against the end of the shell 103 by the head frame 102 being pulled toward the lug 107, and is in a state of being stretched into a flat film.
  • an internal support base 110 is provided inside the shell 103.
  • the internal support base 110 is a part for supporting the buffer body 112 and the vibration sensor 114 inside the shell 103, and is formed by forming a metal (for example, steel plate) or resin plate-like body in a circular shape when viewed from the front. Configured.
  • the inner support base 110 may be formed to have an outer diameter substantially the same as the inner diameter of the shell 103 and may be directly attached to the inner peripheral surface of the shell 103.
  • the inner support base 110 is attached to the inner peripheral surface of the shell 103. It is indirectly supported by a base support 111 that is formed to have an outer diameter sufficiently smaller than the inner diameter of the shell 103 that does not come into contact and projects from the inner peripheral surface of the shell 103.
  • the buffer body 112 is a part that elastically presses and supports the head 101 from the back surface 101b side, and is formed in an annular shape surrounding the hit portion AP hit by the beater 131 in the head 101. More specifically, the buffer body 112 has a size that does not contact the inner peripheral surface of the shell 103 and is formed in a circular plate shape in front view that covers substantially the entire surface of the head 101, and escapes to an inner portion thereof. A hole 113 is provided.
  • the size of the buffer 112 that covers substantially the entire surface of the head 101 is a size having an outer diameter of 80% or more of the inner diameter of the shell 103.
  • the escape hole 113 is a portion that is prevented from being hit by the beater 131, and is configured by a circular through hole having an inner diameter larger than that of the hit portion AP in the head 101.
  • the escape hole 113 can surround the vibration sensor 114 disposed at a position away from the hitting portion AP in the head 101 and is formed in a circular shape having a size that does not contact the vibration sensor 114. Yes.
  • this escape hole 113 is formed in the buffer body 112 so that the central portion of the escape hole 113 is located at a position facing the hitting portion AP in the head 101.
  • a cavity 113 a is formed by the escape hole 113 on the back surface side of the hit portion AP in the head 101.
  • the hit portion AP is indicated by a broken line.
  • the buffer body 112 is made of an elastic material such as a resin material or a rubber material that can be elastically deformed by hitting the head 101 with a beater 131.
  • the buffer body 112 is made of a low-resilience urethane foam material having a resilience elastic modulus of 50% or less.
  • the buffer body 112 is formed with a thickness that is at least thicker than the amount of depression of the head 101 struck by the beater 131. In this case, the thickness of the buffer body 112 is preferably set to 20 mm or more.
  • the buffer body 112 is attached to the internal support base 110 with an adhesive (not shown) or a double-sided tape or the like while being pressed with a pressing force sufficient to maintain contact with the back surface 101b of the head 101.
  • the vibration sensor 114 is a detector that detects the vibration of the head 101, and outputs an electrical signal corresponding to the vibration of the head 101 to a sound source (not shown) provided outside.
  • the vibration sensor 114 is configured by a piezo element, but other detection elements such as an optical sensor may be used.
  • the vibration sensor 114 is fixed to the support table 116 with a double-sided tape or an adhesive (not shown) while pressing the back surface 101b of the head 101 via the cushion body 115.
  • the cushion body 115 is a component for accurately transmitting the vibration to the vibration sensor 114 while protecting the vibration sensor 114 from the vibration of the head 101, and is configured by forming a rubber material or an elastic resin material into a truncated cone shape.
  • the cushion body 115 has a small-diameter distal end pressed against the back surface 101b of the head 101, and a vibration sensor 114 attached to the large-diameter bottom surface via a double-sided tape or an adhesive (not shown).
  • the cushion body 115 is preferably made of a material having a higher rebound resilience than the buffer body 112 in order to improve the followability of the vibration sensor 114 to the head 101.
  • the support table 116 is a component for supporting the vibration sensor 114 that contacts the head 101 via the cushion body 115.
  • the support table 116 supports the flat support plate 116 a that supports the vibration sensor 114 and the internal support base 110. It is comprised with the adjustment volt
  • the support table 116 is provided in a relief hole 113 of the buffer body 112 on the internal support base 110. That is, the vibration sensor 114 is provided in the cavity 113 a that is an inner region of the escape hole 113 of the buffer body 112.
  • the sound source is constituted by a microcomputer provided separately from the electronic bass drum 100, and is an electronic circuit that outputs a musical sound signal based on a detection signal output from the vibration sensor 114.
  • the shell 103 is supported by the support leg 120 and the tapping mechanism 130, respectively.
  • the support legs 120 are parts for supporting the shell 103 in a posture in which the head 101 and the shell cover 104 are erected in the vertical direction, and are metal bars extending from both side surfaces of the shell 103 to the shell cover 104 side. It consists of
  • the tapping mechanism 130 is a mechanical device for tapping the head 101, and mainly includes a beater 131, a swing support body 132, and a pedal 133.
  • the beater 131 is a component that strikes the striking surface 101a of the head 101, and is composed of a cylindrical body in which the outer peripheral surface of a resin core is covered with felt.
  • the beater 131 is supported by a swing support 132 through an arm 131a extending in a rod shape from the side surface portion.
  • the beater 131 is configured by a resin material, a metal material, a cloth material, and a wood, each alone or a combination of these materials, and is not limited to this embodiment.
  • the swing support 132 is a component for swingably supporting the beater 131 in a direction in which the beater 131 is struck or separated from the head 101.
  • the swing support 132 holds the arm 131a and extends in the horizontal direction.
  • Supporting pillars 132b that rotatably support both ends of the swing shaft 132a are provided.
  • the pedal 133 is a component for swinging the beater 131 by a depressing operation with the performer's foot, and is composed of a metal plate-like body that is large enough to place the performer's foot.
  • the pedal 133 has one end rotatably supported by a base plate 133a disposed on the installation surface on which the electronic bass drum 100 is installed, and the other end is an arm of the beater 131 via a belt 133b. It is connected to the attachment part of 131a and the rocking
  • the performer prepares the electronic bass drum 100, a sound source (not shown) and an external speaker, and then electrically connects the electronic bass drum 100 and the sound source, and also electrically connects the sound source and the external speaker. .
  • the performer sets the performance mode in which the power source is turned on by operating the sound source and the performance can be performed. As a result, the electronic bass drum 100 is in a state in which a musical sound can be output from the speaker via the sound source.
  • the performer performs the electronic bass drum 100. Specifically, the performer taps the beater 131 on the hitting surface 101 a of the head 101 by operating the pedal 133 in the hitting mechanism 130.
  • the electronic bass drum 100 provides the player with a hit feeling close to that of an acoustic bass drum because the hit portion AP of the head 101 is supported only by the tension of the buffer body 112 in addition to the head frame 102.
  • the head 101 can be vibrated even by a weak tapping by the beater 131.
  • the state where the beater 131 strikes the head 101 is indicated by a two-dot chain line.
  • the electronic bass drum 100 is provided with the hitting portion AP and the vibration sensor 114 inside the escape hole 113 of the buffer body 112, so that the vibration generated in the head 101 directly passes through the cushion body 115. Is transmitted to the vibration sensor 114. For this reason, the electronic bass drum 100 can be detected by the vibration sensor 114 while suppressing the attenuation of vibration generated in the head 101.
  • the electronic bass drum 100 is provided with the buffer body 112 outside the vibration sensor 114, the vibration generated in the hit portion AP in the head 101 propagates to the shell 103 and the vibration propagated from the shell 103 vibrates. Transmission to the sensor 114 can be effectively prevented.
  • the vibration sensor 114 outputs an electrical signal corresponding to the vibration of the head 101 to the sound source.
  • the sound source generates a tone signal representing a tone based on the detection signal output from the vibration sensor 114 and outputs the tone signal to an external speaker.
  • the electronic bass drum 100 can output musical sounds according to the performance operation of the performer from the external speaker.
  • the electronic bass drum 100 is supported by the buffer 112 around the hitting portion AP hit by the beater 131 on the hitting surface 101a. Since it is supported only by tension and not directly from the back side, the performer can perform with a performance sensation closer to the acoustic drum.
  • the buffer body 112 is formed in a circular plate shape in front view covering substantially the entire surface of the head 101.
  • the buffer body 112 only needs to be disposed on the back surface side of the hitting surface 101a so as to surround the hitting portion AP of the hitting surface 101a. Therefore, for example, as shown in FIGS. 4 and 5, the buffer body 112 can be formed in a ring shape in front view.
  • the buffer body 112 supports the periphery of the hitting portion AP of the head 101 with a suitable tension by forming the thickness t in the forming direction of the head 101 to 20 mm or more. be able to.
  • the buffer body 112 effectively attenuates the vibration propagating through the head 101 while stably supporting the head 101 by forming the thickness t in the forming direction of the head 101 to 100 mm or less.
  • the configuration of the electronic bass drum 100 can be simplified and reduced in weight.
  • FIG. 4 a state where the beater 131 strikes the head 101 is indicated by a two-dot chain line.
  • the escape hole 113 in the buffer body 112 is disposed at a position biased upward in the front view of the head 101.
  • the escape hole 113 is disposed at a position corresponding to the hitting portion AP in the head 101, and is not necessarily limited to the above embodiment and the above modification. Therefore, it is natural that the escape hole 113 can be disposed in the center portion of the head 101 when viewed from the front.
  • the escape hole 113 is arranged such that the center position of the escape hole 113 is located at the hitting portion AP in the head 101.
  • the escape hole 113 can also be arranged with the center position of the escape hole 113 positioned at a position other than the hitting portion AP in the head 101.
  • each of the buffer bodies 112 is formed in a circular shape when viewed from the front.
  • the buffer body 112 can also be formed in a shape other than a circle in front view, for example, a polygon such as a triangle, a square, a pentagon, or a hexagon, or an ellipse.
  • the buffer body 112 is configured to be non-contact with the inner peripheral surface of the shell 103.
  • the electronic bass drum does not inhibit the elastic deformation of the buffer body 112 and can prevent wear due to rubbing of the buffer body 112 against the head 101.
  • the electronic bass drum 100 can prevent the vibration propagated through the head 101 from being reflected by the shell 103, and can accurately detect the vibration caused by the tapping.
  • the buffer body 112 can also be configured to contact the inner peripheral surface of the shell 103. According to this, the vibration of the shell 103 can be damped.
  • the buffer body 112 is made of a low resilience urethane foam material having a resilience modulus of 50% or less.
  • the buffer 112 may be made of a material that elastically contacts the back surface 101 b of the head 101. Therefore, the buffer body 112 can be made of an elastic body having a rebound resilience of 50% or more, or a material other than a urethane foam (for example, a silicon resin, a polypropylene resin, or a rubber material).
  • the inner edge portion of the buffer body 112 is formed in a circle, that is, the escape holes 113 are each formed in a circular shape when viewed from the front.
  • the escape holes 113 can also be formed in a shape other than a circle in front view, for example, a polygon such as a triangle, a rectangle, a pentagon, or a hexagon, or an ellipse.
  • the vibration sensor 114 is disposed inside the escape hole 113.
  • the vibration sensor 114 can be arranged outside the escape hole 113 as shown in FIG.
  • a through hole for placing the vibration sensor 114 in a place other than the escape hole 113 in the buffer body 112 may be provided.
  • FIG. 6 a state where the beater 131 strikes the head 101 is indicated by a two-dot chain line.
  • the buffer body 112 has an inner edge portion that contacts the head 101 formed at a right angle.
  • the buffer 112 can be formed by chamfering the inner edge facing the head 101 into an inclined surface (or arc). According to this, the electronic bass drum 100 can prevent the buffer 112 from being caught on the head 101.
  • a state where the beater 131 strikes the head 101 is indicated by a two-dot chain line.
  • DESCRIPTION OF SYMBOLS 100 Electronic bass drum, 101 ... Head, 101a ... Hitting surface, 101b ... Back surface, 102 ... Head frame, 103 ... Shell, 104 ... Shell cover, 105 ... Hoop, 106 ... Tension bolt, 107 ... Lug, DESCRIPTION OF SYMBOLS 110 ... Internal support base, 111 ... Base support tool, 112 ... Buffer, 113 ... Escape hole, 113a ... Hollow part, 114 ... Vibration sensor, 115 ... Cushion body, 116 ... Support table, 116a ... Support plate, 116b ... Adjustment bolt, 120 ...

Abstract

Provided is an electronic bass drum with which a playing feeling that is closer to a feeling when played with an acoustic drum can be achieved. This electronic bass drum 100 is provided with: a cylindrical shell 103; a head 101 which is formed as a mesh-like sheet body and spread on one end portion of the shell 103; and a plate-shaped inner support base 110 provided inside the shell 103 and facing the head 101. The inner support base 110 is provided with a cushioning body 112 and a vibration sensor 114. The cushioning body 112 is configured from a plate-like body which has a circular shape in a plan view, is formed in an annular shape surrounding a beaten portion AP, beaten by a beater 131, of the head 101, and presses the head 101. The cushioning body 112 has a circular escape hole 113 which can surround the vibration sensor 114 disposed at a position apart from the beaten portion AP of the head 101, the circular escape hole 113 being of a size so as not to contact the vibration sensor 114.

Description

電子バスドラムElectronic bass drum
　本発明は、演奏者によるペダル操作によって揺動するビーターで打面を叩くことにより打面の振動を電気的に検出して発音する電子バスドラムに関する。 The present invention relates to an electronic bass drum that generates sound by electrically detecting vibration of a hitting surface by hitting the hitting surface with a beater that swings by a pedal operation by a player.
　従来から、演奏者によるペダル操作によって揺動するビーターで打面を叩くことにより打面の振動を電気的に検出して発音する電子バスドラムがある。例えば、下記特許文献１には、ヘッドにおけるビーターによって叩かれる叩打部分の裏面側に弾性体からなる緩衝体材を配置するとともにその外側にヘッドの振動を検出する打撃センサを配置することによってアコースティック・バスドラムの演奏感覚に近付けた電子バスドラムが開示されている。 Conventionally, there is an electronic bass drum that generates sound by electrically detecting vibration of the hitting surface by hitting the hitting surface with a beater that swings by a pedal operation by a player. For example, in Patent Document 1 below, an acoustic buffer is provided by disposing a shock absorbing material made of an elastic body on the back side of a hitting portion hit by a beater in a head and disposing a hitting sensor for detecting head vibration on the outside thereof. An electronic bass drum that is close to the performance of a bass drum is disclosed.
特開平１１－２１２５６６号公報Japanese Patent Laid-Open No. 11-212566
　しかしながら、上記特許文献１に記載された電子バスドラムにおいては、ヘッドのビーターによる叩打部分の裏側に緩衝材が配置されているため、ビーターによってヘッドを叩打した際にアコースティック・バスドラムの膜状の打面（鼓面）を叩くという叩打感が得られず、演奏感覚として違和感が残り不十分であるという問題がある。 However, in the electronic bass drum described in Patent Document 1, since the cushioning material is disposed on the back side of the hitting portion by the beater of the head, when the head is hit by the beater, the film shape of the acoustic bass drum is reached. There is a problem that a tapping feeling of hitting the tapping surface (drum surface) cannot be obtained, and a sense of discomfort remains as a performance feeling.
　本発明は上記問題に対処するためなされたもので、その目的は、アコースティック・ドラムにより近い演奏感覚を得ることができる電子バスドラムを提供することにある。 The present invention has been made to cope with the above problems, and an object of the present invention is to provide an electronic bass drum capable of obtaining a performance feeling closer to that of an acoustic drum.
　上記目的を達成するため、本発明の特徴は、演奏者によって叩かれる打面を構成するヘッドと、演奏者によるペダルの操作を介して打面を叩くビーターを有した叩打機構と、打面の裏面側に同打面におけるビーターが叩く叩打部分の周囲を囲んで配置された緩衝体と、ヘッドの振動を検出する振動センサとを備えたことにある。 In order to achieve the above object, the present invention is characterized by a hitting mechanism having a head that forms a hitting surface hit by a player, a beater that hits the hitting surface through a pedal operation by the player, and a hitting surface of the hitting surface. A shock absorber disposed around the hitting portion hit by the beater on the hitting surface on the back surface side and a vibration sensor for detecting head vibration are provided.
　このように構成した本発明の特徴によれば、電子バスドラムは、打面におけるビーターで叩かれる叩打部分の周囲が緩衝体で支持されて叩打部分の裏側は空洞で叩打部分自体は直接裏面側から支持されていないため、演奏者はアコースティック・ドラムにより近い演奏感覚で演奏することができる。 According to the feature of the present invention configured as described above, the electronic bass drum is supported by the buffer around the hitting portion hit by the beater on the hitting surface, the back side of the hitting portion is hollow, and the hitting portion itself is directly on the back side. Therefore, the performer can perform with a performance sensation closer to that of an acoustic drum.
　また、本発明の他の特徴は、前記電子バスドラムにおいて、振動センサは、打面における叩打部分の外側でかつ緩衝体の内側に配置されていることにある。 Another feature of the present invention is that, in the electronic bass drum, the vibration sensor is disposed outside the hitting portion of the hitting surface and inside the buffer.
　このように構成した本発明の他の特徴によれば、電子バスドラムは、振動センサが打面における叩打部分の外側でかつ緩衝体の内側に配置されているため、ビーターによって叩打されたヘッドの振動を精度良く検出することができる。 According to another feature of the present invention configured as described above, the electronic bass drum has a vibration sensor disposed outside the hitting portion on the hitting surface and inside the shock absorber. Vibration can be detected with high accuracy.
　この場合、従来の電子バスドラムにおいては、ビーターによる叩打部分の裏側に緩衝材が配置されるとともにこの緩衝材を介して打撃センサがヘッドの振動を検出するため、ヘッドの振動が打撃センサに伝搬する際に緩衝材によって減衰または遅延するとともにヘッドへの弱い叩打による振動が検出できないことがあった。このため、従来の電子バスドラムにおいては、演奏者の演奏操作に忠実な発音がなされず演奏感に違和感が生じることがあるという問題があった。 In this case, in the conventional electronic bass drum, a shock absorbing material is disposed on the back side of the hitting portion by the beater, and the impact sensor detects the vibration of the head via the shock absorbing material, so that the head vibration propagates to the impact sensor. In some cases, the vibration is attenuated or delayed by the buffer material, and vibration due to weak tapping on the head may not be detected. For this reason, in the conventional electronic bass drum, there is a problem in that a sound that is faithful to the performance operation of the performer is not produced and a feeling of performance may be uncomfortable.
　しかし、本発明に係る電子バスドラムによれば、打面におけるビーターで叩かれる叩打部分自体は直接裏面側から支持されていないため、弱い叩打でもヘッドを振動させることができるとともに、ヘッドの振動を緩衝体を介することなく直接振動センサに伝搬させることができ、演奏者はアコースティック・ドラムにより近い演奏感覚で演奏することができるとともに演奏者の叩打操作に対してより忠実な発音を可能にすることができる。 However, according to the electronic bass drum of the present invention, the hitting portion hit by the beater on the hitting surface is not directly supported from the back side, so that the head can be vibrated even with weak hitting, and the vibration of the head can be reduced. Propagation directly to the vibration sensor without going through a shock absorber, allowing the performer to perform with a performance feeling closer to that of an acoustic drum and enabling more faithful pronunciation to the player's tapping operation Can do.
　また、本発明の他の特徴は、前記電子バスドラムにおいて、緩衝体は、叩打部分を囲む内縁部が円環状に形成されていることにある。 Further, another feature of the present invention is that, in the electronic bass drum, the buffer body has an inner edge portion surrounding the hit portion formed in an annular shape.
　このように構成した本発明の他の特徴によれば、電子バスドラムは、緩衝体における叩打部分を囲む内縁部が円環状に形成されているため、ヘッドにおける叩打部分を中心として放射状に伝搬する振動を均等に伝搬、吸収または反射させることができヘッドを伝搬する振動に偏り（ムラ）が生じることを防止することができる。 According to another feature of the present invention configured as described above, the electronic bass drum propagates radially around the hitting portion of the head since the inner edge portion surrounding the hitting portion of the buffer body is formed in an annular shape. The vibration can be propagated, absorbed, or reflected evenly, and deviation (unevenness) can be prevented from occurring in the vibration propagating through the head.
　また、本発明の他の特徴は、前記電子バスドラムにおいて、緩衝体は、ヘッドの形成方向における肉厚が２０ｍｍ以上であることにある。 Another feature of the present invention is that in the electronic bass drum, the buffer body has a thickness of 20 mm or more in the head forming direction.
　このように構成した本発明の他の特徴によれば、電子バスドラムは、緩衝体がヘッドの形成方向における肉厚が２０ｍｍ以上で形成されているため、本発明者の実験によればヘッドを安定的に支持することができるとともにヘッドを伝搬する振動を効果的に減衰させることができる。 According to another feature of the present invention configured as described above, in the electronic bass drum, the shock absorber is formed with a thickness of 20 mm or more in the head forming direction. It is possible to stably support, and to effectively attenuate the vibration propagating through the head.
　また、本発明の他の特徴は、前記電子バスドラムにおいて、緩衝体は、ヘッドの形成方向における肉厚が１００ｍｍ以下であることにある。 Another feature of the present invention is that, in the electronic bass drum, the buffer body has a thickness of 100 mm or less in the head forming direction.
　このように構成した本発明の他の特徴によれば、電子バスドラムは、緩衝体がヘッドの形成方向における肉厚が１００ｍｍ以下であるため、ヘッドを安定的に支持することができるとともにヘッドを伝搬する振動を効果的に減衰させつつ電子バスドラムの構成を簡単化および軽量化することができる。また、緩衝体を樹脂発泡材で構成した場合においては、成形性が向上するため、ヘッドに対する面圧を安定化させることができ生産性を向上させることができる。 According to another aspect of the present invention configured as described above, the electronic bass drum can stably support the head and the head since the buffer body has a thickness of 100 mm or less in the head forming direction. The structure of the electronic bass drum can be simplified and reduced in weight while effectively attenuating the propagating vibration. Further, when the buffer body is made of a resin foam material, the moldability is improved, so that the surface pressure against the head can be stabilized and the productivity can be improved.
　また、本発明の他の特徴は、前記電子バスドラムにおいて、緩衝体は、ヘッドの外縁部を支持する筒状のシェルの内周部に対して非接触であることにある。 Another feature of the present invention is that, in the electronic bass drum, the buffer body is not in contact with the inner peripheral portion of the cylindrical shell that supports the outer edge portion of the head.
　このように構成した本発明の他の特徴によれば、電子バスドラムは、緩衝体がヘッドの外縁部を支持する筒状のシェルの内周部に対して非接触であるため、緩衝体の弾性変形を阻害しないとともに緩衝体のヘッドへの擦れによる摩耗を防止することができる。また、電子バスドラムは、ヘッドを伝搬した振動がシェルで反射することを防止することができ、叩打による振動を精度良く検出することもできる。 According to another feature of the present invention configured as described above, the electronic bass drum is configured such that the shock absorber is not in contact with the inner peripheral portion of the cylindrical shell that supports the outer edge of the head. The elastic deformation is not hindered, and wear due to rubbing of the buffer against the head can be prevented. In addition, the electronic bass drum can prevent the vibration propagated through the head from being reflected by the shell, and can accurately detect the vibration caused by the tapping.
　また、本発明の他の特徴は、前記電子バスドラムにおいて、緩衝体は、反発弾性率が５０％以下の弾性体で構成されていることにある。 Another feature of the present invention is that, in the electronic bass drum, the shock absorber is composed of an elastic body having a rebound resilience of 50% or less.
　このように構成した本発明の他の特徴によれば、電子バスドラムは、緩衝体が反発弾性率が５０％以下の弾性体で構成されているため、ヘッドにアコースティック・ドラムのヘッドに近い弾性を与えることができる。この場合、緩衝体の反発弾性率は、１０％以上の弾性体で構成するとい。 According to another feature of the present invention configured as described above, the electronic bass drum has an elastic body close to the head of the acoustic drum because the buffer body is formed of an elastic body having a rebound resilience of 50% or less. Can be given. In this case, it is said that the impact resilience of the buffer body is constituted by an elastic body of 10% or more.
　なお、反発弾性率は、所定質量、高さの落下物を試験片に衝突させた際の物体の落下時の高さに対する跳ね返り後の高さの比のことであり、この数値（Ｒ％）が小さいほど反発が小さく、大きいほど反発が大きいことを意味する。 The rebound resilience is a ratio of the height after rebounding to the height when the object falls when a falling object of a predetermined mass and height collides with the test piece, and this numerical value (R%) The smaller the value, the smaller the rebound, and the larger the value, the greater the rebound.
本発明の一実施形態に係る電子バスドラムの外観構成の概略を示す斜視図である。It is a perspective view showing the outline of the appearance composition of the electronic bass drum concerning one embodiment of the present invention. 図１に示した電子バスドラムにおいてヘッド、フープおよび叩打機構をそれぞれ省略して示した斜視図である。FIG. 2 is a perspective view showing the electronic bass drum shown in FIG. 1 with a head, a hoop, and a tapping mechanism omitted. 図１に示す電子バスドラムの内部構成の概略を示す断面図である。It is sectional drawing which shows the outline of the internal structure of the electronic bass drum shown in FIG. 本発明の変形例に係る電子バスドラムの内部構成の概略を示す断面図である。It is sectional drawing which shows the outline of the internal structure of the electronic bass drum which concerns on the modification of this invention. 図４に示す電子バスドラムにおいてヘッド、フープおよび叩打機構をそれぞれ省略して示した正面図である。FIG. 5 is a front view showing the electronic bass drum shown in FIG. 4 with a head, a hoop, and a tapping mechanism omitted. 本発明の他の変形例に係る電子バスドラムの内部構成の概略を示す断面図である。It is sectional drawing which shows the outline of the internal structure of the electronic bass drum which concerns on the other modification of this invention. 本発明の他の変形例に係る電子バスドラムの内部構成の概略を示す断面図である。It is sectional drawing which shows the outline of the internal structure of the electronic bass drum which concerns on the other modification of this invention.
　以下、本発明に係る電子バスドラムの一実施形態について図面を参照しながら説明する。図１は、本発明に係る電子バスドラム１００の外観構成の概略を示した斜視図である。また、図２は、図１に示した電子バスドラム１００においてヘッド１０１、フープ１０５および叩打機構１３０をそれぞれ省略して示した斜視図である。また、図３は、図１に示す電子バスドラム１００の内部構成の概略を示す断面図である。なお、本明細書において参照する図は、本発明の理解を容易にするために一部の構成要素を誇張して表わすなど模式的に表している。このため、各構成要素間の寸法や比率などは異なっていることがある。この電子バスドラム１００は、演奏者（図示せず）によるペダル操作によってビーター１３１がヘッドの打面１０１ａの叩打した際の振動を検出して電子的な楽音を発生させる電子打楽器である。 Hereinafter, an embodiment of an electronic bass drum according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an outline of an external configuration of an electronic bass drum 100 according to the present invention. 2 is a perspective view showing the electronic bass drum 100 shown in FIG. 1 with the head 101, the hoop 105, and the tapping mechanism 130 omitted. FIG. 3 is a cross-sectional view showing an outline of the internal configuration of the electronic bass drum 100 shown in FIG. Note that the drawings referred to in this specification are schematically shown by exaggerating some of the components in order to facilitate understanding of the present invention. For this reason, the dimension, ratio, etc. between each component may differ. The electronic bass drum 100 is an electronic percussion instrument that generates an electronic musical tone by detecting vibration when the beater 131 strikes the hitting surface 101a of the head by a pedal operation by a player (not shown).
　（電子バスドラム１００の構成）
　電子バスドラム１００は、ヘッド１０１を備えている。ヘッド１０１は、演奏者によって操作される後述するビーター１３１によって叩かれることで振動および弾性変形する部品であり、布材または樹脂材をシート状または薄板状に形成して構成されている。具体的には、ヘッド１０１は、透明または半透明の樹脂製のシート材または薄板材、またはメッシュ状に形成した布材または樹脂材で構成されている。本実施形態においては、ヘッド１０１は、メッシュ状のシート体を平面視で円形に形成して構成されている。このヘッド１０１は、外縁部がヘッド枠１０２によって保持されている。 (Configuration of electronic bass drum 100)
The electronic bass drum 100 includes a head 101. The head 101 is a component that vibrates and elastically deforms when hit by a beater 131 (described later) operated by a performer, and is configured by forming a cloth material or a resin material into a sheet shape or a thin plate shape. Specifically, the head 101 is composed of a transparent or translucent resin sheet material or thin plate material, or a cloth material or resin material formed in a mesh shape. In the present embodiment, the head 101 is configured by forming a mesh-like sheet body into a circle in a plan view. The outer edge of the head 101 is held by a head frame 102.
　ヘッド枠１０２は、ヘッド１０１をシェル１０３上にテンションを張った状態で配置するために部品であり、金属材または樹脂材を環状に形成して構成されている。このヘッド枠１０２は、ヘッド１０１の外縁部を保持した状態でシェル１０３の外周部に嵌合し他状態で環状の上面がフープ１０５によって押さえられている。 The head frame 102 is a component for arranging the head 101 on the shell 103 in a tensioned state, and is configured by forming a metal material or a resin material in an annular shape. The head frame 102 is fitted to the outer peripheral portion of the shell 103 while holding the outer edge portion of the head 101, and the annular upper surface is pressed by the hoop 105 in the other state.
　シェル１０３は、ヘッド１０１、緩衝体１１２および振動センサ１１４をそれぞれ支持する部品であり、金属材、樹脂材または木材を円筒状に形成して構成されている。このシェル１０３は、一方（図示上側）の端部がヘッド１０１によって閉塞されているとともに、他方（図示下側）の端部がシェルカバー１０４によって閉塞されている。これにより、ヘッド１０１は、シェル１０３の外側に露出する面が打面１０１ａを構成するとともにシェル１０３の内側に面する面が裏面１０１ｂを構成する。 The shell 103 is a component that supports the head 101, the buffer body 112, and the vibration sensor 114, and is configured by forming a metal material, a resin material, or wood into a cylindrical shape. One end (upper side in the figure) of the shell 103 is closed by the head 101, and the other end (lower side in the figure) is closed by the shell cover 104. Thus, in the head 101, the surface exposed to the outside of the shell 103 constitutes the striking surface 101a, and the surface facing the inside of the shell 103 constitutes the back surface 101b.
　シェルカバー１０４は、シェル１０３におけるヘッド１０１側とは反対側を覆うための部品であり、布材または樹脂材をシート状または薄板状に形成して構成されている。本実施形態においては、シェルカバー１０４は、ヘッド１０１と同様に、メッシュ状のシート体を平面視で円形に形成して構成されている。 The shell cover 104 is a component for covering the opposite side of the shell 103 to the head 101 side, and is configured by forming a cloth material or a resin material into a sheet shape or a thin plate shape. In the present embodiment, the shell cover 104 is configured by forming a mesh-like sheet body in a circular shape in plan view, like the head 101.
　フープ１０５は、ヘッド枠１０２の上面を押してヘッド１０１をシェル１０３上で張るための部品であり、金属材を段付きの円筒状に形成して構成されている。このフープ１０５は、一方（図示上側）の端部がヘッド１０１が張られたシェル１０３の上端部から張り出すとともに、他方（図示下側）の端部側が径方向外側に張り出した後、ヘッド枠１０２の下端部から張り出す円筒状に形成されている。そして、フープ１０５は、前記他方の端部側におけり径方向外側に張り出した部分がテンションボルト１０６を介してラグ１０７に取り付けられている。 The hoop 105 is a part for pressing the upper surface of the head frame 102 to stretch the head 101 on the shell 103, and is configured by forming a metal material into a stepped cylindrical shape. The hoop 105 has an end portion on one side (upper side in the drawing) that protrudes from an upper end portion of the shell 103 on which the head 101 is stretched, and an end portion side on the other side (lower side in the drawing) projects radially outward. It is formed in a cylindrical shape protruding from the lower end of 102. The hoop 105 is attached to a lug 107 via a tension bolt 106 at a portion projecting radially outward on the other end side.
　テンションボルト１０６は、フープ１０５をヘッド枠１０２の上面に押さえ付けるための部品であり、金属製の軸体の外周部に雄ネジが形成されたボルトで構成されている。このテンションボルト１０６は、フープ１０５における外径が張り出した部分を貫通した状態でラグ１０７の雌ネジに締め付けられている。これにより、ヘッド１０１は、ヘッド枠１０２がラグ１０７側に引っ張られることによりシェル１０３の端部に押し付けられて平らな膜状に張られた状態となる。一方、シェル１０３の内部には、内部支持ベース１１０が設けられている。 The tension bolt 106 is a part for pressing the hoop 105 against the upper surface of the head frame 102, and is composed of a bolt having a male screw formed on the outer periphery of a metal shaft. The tension bolt 106 is fastened to the female screw of the lug 107 in a state where the tension bolt 106 penetrates a portion where the outer diameter of the hoop 105 protrudes. As a result, the head 101 is pressed against the end of the shell 103 by the head frame 102 being pulled toward the lug 107, and is in a state of being stretched into a flat film. On the other hand, an internal support base 110 is provided inside the shell 103.
　内部支持ベース１１０は、シェル１０３の内部において緩衝体１１２および振動センサ１１４をそれぞれ支持するための部品であり、金属製（例えば、鋼板）または樹脂製の板状体を正面視で円形に形成して構成されている。この場合、内部支持ベース１１０は、シェル１０３の内径と略同一の外径に形成されてシェル１０３の内周面に直接取り付けられてもよいが、本実施形態においてはシェル１０３の内周面に接触することのないシェル１０３の内径よりも十分に小さい外径に形成されてシェル１０３の内周面から張り出したベース支持具１１１によって間接的に支持されている。 The internal support base 110 is a part for supporting the buffer body 112 and the vibration sensor 114 inside the shell 103, and is formed by forming a metal (for example, steel plate) or resin plate-like body in a circular shape when viewed from the front. Configured. In this case, the inner support base 110 may be formed to have an outer diameter substantially the same as the inner diameter of the shell 103 and may be directly attached to the inner peripheral surface of the shell 103. However, in this embodiment, the inner support base 110 is attached to the inner peripheral surface of the shell 103. It is indirectly supported by a base support 111 that is formed to have an outer diameter sufficiently smaller than the inner diameter of the shell 103 that does not come into contact and projects from the inner peripheral surface of the shell 103.
　緩衝体１１２は、ヘッド１０１を裏面１０１ｂ側から弾性的に押圧して支持する部品であり、ヘッド１０１におけるビーター１３１によって叩打される叩打部分ＡＰの周囲を囲む環状に形成されている。より具体的には、緩衝体１１２は、シェル１０３の内周面に接しない大きさでかつヘッド１０１の略全面を覆う正面視で円形の板状に形成されているとともに、その内側部分に逃げ孔１１３を有して構成されている。 The buffer body 112 is a part that elastically presses and supports the head 101 from the back surface 101b side, and is formed in an annular shape surrounding the hit portion AP hit by the beater 131 in the head 101. More specifically, the buffer body 112 has a size that does not contact the inner peripheral surface of the shell 103 and is formed in a circular plate shape in front view that covers substantially the entire surface of the head 101, and escapes to an inner portion thereof. A hole 113 is provided.
　この場合、ヘッド１０１の略全面を覆う緩衝体１１２の大きさとは、シェル１０３の内径の８割以上の外径を有する大きさである。また、逃げ孔１１３は、ビーター１３１によって叩打されることを避ける部分であり、ヘッド１０１における叩打部分ＡＰよりも大きな内径の円形の貫通孔によって構成されている。本実施形態においては、逃げ孔１１３は、ヘッド１０１における叩打部分ＡＰから離れた位置に配置される振動センサ１１４を囲むことができるとともに、この振動センサ１１４に接しない大きさの円形に形成されている。 In this case, the size of the buffer 112 that covers substantially the entire surface of the head 101 is a size having an outer diameter of 80% or more of the inner diameter of the shell 103. The escape hole 113 is a portion that is prevented from being hit by the beater 131, and is configured by a circular through hole having an inner diameter larger than that of the hit portion AP in the head 101. In the present embodiment, the escape hole 113 can surround the vibration sensor 114 disposed at a position away from the hitting portion AP in the head 101 and is formed in a circular shape having a size that does not contact the vibration sensor 114. Yes.
　そして、この逃げ孔１１３は、ヘッド１０１における叩打部分ＡＰに対向する位置に逃げ孔１１３の中心部分が位置するように緩衝体１１２に形成されている。これにより、ヘッド１０１における叩打部分ＡＰの裏面側には、逃げ孔１１３によって空洞部１１３ａが形成される。なお、図１においては、叩打部分ＡＰを破線で示している。 And this escape hole 113 is formed in the buffer body 112 so that the central portion of the escape hole 113 is located at a position facing the hitting portion AP in the head 101. As a result, a cavity 113 a is formed by the escape hole 113 on the back surface side of the hit portion AP in the head 101. In FIG. 1, the hit portion AP is indicated by a broken line.
　この緩衝体１１２は、ビーター１３１によるヘッド１０１の叩打によって弾性変形可能な樹脂材またはゴム材などの弾性材で構成されている。本実施形態においては、緩衝体１１２は、反発弾性率が５０％以下の低反発ウレタン発泡材によって構成されている。この場合、緩衝体１１２は、少なくともビーター１３１によって叩打されるヘッド１０１の凹み量よりも厚い厚さで形成される。この場合、緩衝体１１２の厚さは、２０ｍｍ以上に設定するとよい。そして、この緩衝体１１２は、ヘッド１０１の裏面１０１ｂへの接触を維持できる程度の押圧力で押圧した状態で内部支持ベース１１０上に図示しない接着剤または両面テープなどによって取り付けられている。 The buffer body 112 is made of an elastic material such as a resin material or a rubber material that can be elastically deformed by hitting the head 101 with a beater 131. In the present embodiment, the buffer body 112 is made of a low-resilience urethane foam material having a resilience elastic modulus of 50% or less. In this case, the buffer body 112 is formed with a thickness that is at least thicker than the amount of depression of the head 101 struck by the beater 131. In this case, the thickness of the buffer body 112 is preferably set to 20 mm or more. The buffer body 112 is attached to the internal support base 110 with an adhesive (not shown) or a double-sided tape or the like while being pressed with a pressing force sufficient to maintain contact with the back surface 101b of the head 101.
　振動センサ１１４は、ヘッド１０１の振動を検出する検出器であり、ヘッド１０１の振動に応じた電気信号を外部に設けられる図示しない音源に出力する。本実施形態においては、振動センサ１１４は、ピエゾ素子によって構成されているが、光センサなど他の検出素子を用いることもできる。この振動センサ１１４は、クッション体１１５を介してヘッド１０１の裏面１０１ｂを押圧した状態で支持テーブル１１６上に図示しない両面テープまたは接着剤などによって固着されている。 The vibration sensor 114 is a detector that detects the vibration of the head 101, and outputs an electrical signal corresponding to the vibration of the head 101 to a sound source (not shown) provided outside. In the present embodiment, the vibration sensor 114 is configured by a piezo element, but other detection elements such as an optical sensor may be used. The vibration sensor 114 is fixed to the support table 116 with a double-sided tape or an adhesive (not shown) while pressing the back surface 101b of the head 101 via the cushion body 115.
　クッション体１１５は、ヘッド１０１の振動から振動センサ１１４を保護しつつ振動を精度良く振動センサ１１４に伝達するための部品であり、ゴム材または弾性を有する樹脂材を円錐台形状に形成して構成されている。この場合、クッション体１１５は、小径の先端部がヘッド１０１の裏面１０１ｂに押圧されているとともに大径の下面部分に振動センサ１１４が図示しない両面テープまたは接着剤を介して取り付けられている。また、クッション体１１５は、振動センサ１１４のヘッド１０１への追従性を向上させるため、緩衝体１１２よりも反発弾性率が高い材料で構成するとよい。 The cushion body 115 is a component for accurately transmitting the vibration to the vibration sensor 114 while protecting the vibration sensor 114 from the vibration of the head 101, and is configured by forming a rubber material or an elastic resin material into a truncated cone shape. Has been. In this case, the cushion body 115 has a small-diameter distal end pressed against the back surface 101b of the head 101, and a vibration sensor 114 attached to the large-diameter bottom surface via a double-sided tape or an adhesive (not shown). Further, the cushion body 115 is preferably made of a material having a higher rebound resilience than the buffer body 112 in order to improve the followability of the vibration sensor 114 to the head 101.
　支持テーブル１１６は、クッション体１１５を介してヘッド１０１に接触する振動センサ１１４を支持するための部品であり、振動センサ１１４を支持する平板状の支持板１１６ａと内部支持ベース１１０に対して支持板１１６ａを接近または離隔可能に支持する調整ボルト１１６ｂとで構成されている。この支持テーブル１１６は、内部支持ベース１１０上における緩衝体１１２の逃げ孔１１３内に設けられている。すなわち、振動センサ１１４は、緩衝体１１２の逃げ孔１１３の内側領域である空洞部１１３ａ内に設けられている。 The support table 116 is a component for supporting the vibration sensor 114 that contacts the head 101 via the cushion body 115. The support table 116 supports the flat support plate 116 a that supports the vibration sensor 114 and the internal support base 110. It is comprised with the adjustment volt | bolt 116b which supports 116a so that an approach or separation is possible. The support table 116 is provided in a relief hole 113 of the buffer body 112 on the internal support base 110. That is, the vibration sensor 114 is provided in the cavity 113 a that is an inner region of the escape hole 113 of the buffer body 112.
　なお、音源は、電子バスドラム１００とは別体で設けられるマイクロコンピュータによって構成されており、振動センサ１１４から出力される検出信号に基づいて楽音信号を出力する電子回路である。 The sound source is constituted by a microcomputer provided separately from the electronic bass drum 100, and is an electronic circuit that outputs a musical sound signal based on a detection signal output from the vibration sensor 114.
　シェル１０３は、支持脚１２０および叩打機構１３０によってそれぞれ支持されている。支持脚１２０は、ヘッド１０１およびシェルカバー１０４をそれぞれ垂直方向に起立させた姿勢のシェル１０３を支持するための部品であり、シェル１０３の両側面からシェルカバー１０４側にそれぞれ延びる金属製の棒体で構成されている。 The shell 103 is supported by the support leg 120 and the tapping mechanism 130, respectively. The support legs 120 are parts for supporting the shell 103 in a posture in which the head 101 and the shell cover 104 are erected in the vertical direction, and are metal bars extending from both side surfaces of the shell 103 to the shell cover 104 side. It consists of
　叩打機構１３０は、ヘッド１０１を叩打するための機械装置であり、主として、ビーター１３１、揺動支持体１３２およびペダル１３３を備えて構成されている。ビーター１３１は、ヘッド１０１の打面１０１ａを叩打する部品であり、樹脂製の心材の外周面をフェルトで覆った円柱体で構成されている。このビーター１３１は、側面部分から棒状に延びるアーム１３１ａを介して揺動支持体１３２によって支持されている。なお、ビーター１３１は、樹脂材、金属材、布材および木材をそれぞれ単体でまたはこれらの材料を適宜組み合わせて構成されるものであり、本実施形態に限定されるものではない。 The tapping mechanism 130 is a mechanical device for tapping the head 101, and mainly includes a beater 131, a swing support body 132, and a pedal 133. The beater 131 is a component that strikes the striking surface 101a of the head 101, and is composed of a cylindrical body in which the outer peripheral surface of a resin core is covered with felt. The beater 131 is supported by a swing support 132 through an arm 131a extending in a rod shape from the side surface portion. In addition, the beater 131 is configured by a resin material, a metal material, a cloth material, and a wood, each alone or a combination of these materials, and is not limited to this embodiment.
　揺動支持体１３２は、ビーター１３１をヘッド１０１に対して叩打または離隔させる方向に揺動可能に支持するための部品であり、アーム１３１ａを保持して水平方向に延びる揺動軸１３２ａと、この揺動軸１３２ａの両端部をそれぞれ回転自在に支持する支持柱１３２ｂとを備えて構成されている。ペダル１３３は、演奏者の足による踏み込み操作によってビーター１３１を揺動させるための部品であり、演奏者の足を載せることができる大きさの金属製の板状体で構成されている。このペダル１３３は、一方の端部が電子バスドラム１００が設置される設置面上に配置されるベース板１３３ａに回転自在に支持されるとともに他方の端部がベルト１３３ｂを介してビーター１３１のアーム１３１ａと揺動軸１３２ａとの取付部分に連結されている。 The swing support 132 is a component for swingably supporting the beater 131 in a direction in which the beater 131 is struck or separated from the head 101. The swing support 132 holds the arm 131a and extends in the horizontal direction. Supporting pillars 132b that rotatably support both ends of the swing shaft 132a are provided. The pedal 133 is a component for swinging the beater 131 by a depressing operation with the performer's foot, and is composed of a metal plate-like body that is large enough to place the performer's foot. The pedal 133 has one end rotatably supported by a base plate 133a disposed on the installation surface on which the electronic bass drum 100 is installed, and the other end is an arm of the beater 131 via a belt 133b. It is connected to the attachment part of 131a and the rocking | fluctuation shaft 132a.
（電子バスドラム１００の作動）
　次に、このように構成した電子バスドラム１００の作動について説明する。まず、演奏者は、電子バスドラム１００、図示しない音源および外部スピーカをそれぞれ用意した後、電子バスドラム１００と音源とを電気的に接続するとともに、この音源と外部スピーカとを電気的に接続する。次いで、演奏者は、音源を操作して電源をＯＮするとともに演奏を行なえる演奏モードに設定する。これにより、電子バスドラム１００は、音源を介してスピーカから楽音を出力可能な状態となる。 (Operation of electronic bass drum 100)
Next, the operation of the electronic bass drum 100 configured as described above will be described. First, the performer prepares the electronic bass drum 100, a sound source (not shown) and an external speaker, and then electrically connects the electronic bass drum 100 and the sound source, and also electrically connects the sound source and the external speaker. . Next, the performer sets the performance mode in which the power source is turned on by operating the sound source and the performance can be performed. As a result, the electronic bass drum 100 is in a state in which a musical sound can be output from the speaker via the sound source.
　次に、演奏者は、電子バスドラム１００の演奏を行う。具体的には、演奏者は、叩打機構１３０におけるペダル１３３を操作することによりビーター１３１をヘッド１０１の打面１０１ａに叩打させる。この場合、電子バスドラム１００は、ヘッド１０１における叩打部分ＡＰがヘッド枠１０２に加えて緩衝体１１２による張力のみによって支持されているため、演奏者に対してアコースティック・バスドラムに近い叩打感を与えることができるとともに、ビーター１３１による弱い叩打によってもヘッド１０１を振動させることができる。なお、図３においては、ビーター１３１がヘッド１０１を叩打した状態を二点鎖線で示している。 Next, the performer performs the electronic bass drum 100. Specifically, the performer taps the beater 131 on the hitting surface 101 a of the head 101 by operating the pedal 133 in the hitting mechanism 130. In this case, the electronic bass drum 100 provides the player with a hit feeling close to that of an acoustic bass drum because the hit portion AP of the head 101 is supported only by the tension of the buffer body 112 in addition to the head frame 102. In addition, the head 101 can be vibrated even by a weak tapping by the beater 131. In FIG. 3, the state where the beater 131 strikes the head 101 is indicated by a two-dot chain line.
　また、この場合、電子バスドラム１００は、緩衝体１１２の逃げ孔１１３の内側に叩打部分ＡＰと振動センサ１１４とがそれぞれ設けられているため、ヘッド１０１に生じた振動が直接クッション体１１５を介して振動センサ１１４に伝達される。このため、電子バスドラム１００は、ヘッド１０１に生じた振動の減衰を抑えながら振動センサ１１４に検出させることができる。また、電子バスドラム１００は、振動センサ１１４の外側に緩衝体１１２が設けられているため、ヘッド１０１における叩打部分ＡＰに生じた振動がシェル１０３に伝搬することおよびシェル１０３から伝搬する振動が振動センサ１１４に伝達されることを効果的に防止することができる。 Further, in this case, the electronic bass drum 100 is provided with the hitting portion AP and the vibration sensor 114 inside the escape hole 113 of the buffer body 112, so that the vibration generated in the head 101 directly passes through the cushion body 115. Is transmitted to the vibration sensor 114. For this reason, the electronic bass drum 100 can be detected by the vibration sensor 114 while suppressing the attenuation of vibration generated in the head 101. In addition, since the electronic bass drum 100 is provided with the buffer body 112 outside the vibration sensor 114, the vibration generated in the hit portion AP in the head 101 propagates to the shell 103 and the vibration propagated from the shell 103 vibrates. Transmission to the sensor 114 can be effectively prevented.
　一方、振動センサ１１４は、ヘッド１０１の振動に応じた電気信号を音源に出力する。これにより、音源は、振動センサ１１４から出力される検出信号に基づいて楽音を表す楽音信号を生成するとともに、この楽音信号を外部スピーカに出力する。この結果、電子バスドラム１００は、演奏者の演奏操作に応じた楽音を外部スピーカから出力することができる。 On the other hand, the vibration sensor 114 outputs an electrical signal corresponding to the vibration of the head 101 to the sound source. As a result, the sound source generates a tone signal representing a tone based on the detection signal output from the vibration sensor 114 and outputs the tone signal to an external speaker. As a result, the electronic bass drum 100 can output musical sounds according to the performance operation of the performer from the external speaker.
　上記作動説明からも理解できるように、上記実施形態によれば、電子バスドラム１００は、打面１０１ａにおけるビーター１３１で叩かれる叩打部分ＡＰの周囲が緩衝体１１２で支持されて叩打部分ＡＰ自体は張力のみによって支持されて直接裏面側から支持されていないため、演奏者はアコースティック・ドラムにより近い演奏感覚で演奏することができる。 As can be understood from the above description of the operation, according to the above embodiment, the electronic bass drum 100 is supported by the buffer 112 around the hitting portion AP hit by the beater 131 on the hitting surface 101a. Since it is supported only by tension and not directly from the back side, the performer can perform with a performance sensation closer to the acoustic drum.
　さらに、本発明の実施にあたっては、上記実施形態に限定されるものではなく、本発明の目的を逸脱しない限りにおいて種々の変更が可能である。なお、下記各変形例において、上記実施形態と同様の構成部分については同じ符号を付して、その説明を省略する。 Furthermore, the implementation of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the object of the present invention. In the following modifications, the same reference numerals are given to the same components as those in the above embodiment, and the description thereof is omitted.
　例えば、上記実施形態においては、緩衝体１１２は、ヘッド１０１の略全面を覆う正面視で円形の板状に形成した。しかし、緩衝体１１２は、打面１０１ａの裏面側に同打面１０１ａにおける叩打部分ＡＰの周囲を囲んで配置されていればよい。したがって、緩衝体１１２は、例えば、図４および図５にそれぞれ示すように、正面視でリング状に形成することができる。 For example, in the above embodiment, the buffer body 112 is formed in a circular plate shape in front view covering substantially the entire surface of the head 101. However, the buffer body 112 only needs to be disposed on the back surface side of the hitting surface 101a so as to surround the hitting portion AP of the hitting surface 101a. Therefore, for example, as shown in FIGS. 4 and 5, the buffer body 112 can be formed in a ring shape in front view.
　この場合、緩衝体１１２は、本発明者の実験によれば、ヘッド１０１の形成方向の厚さｔを２０ｍｍ以上に形成することにより、ヘッド１０１における叩打部分ＡＰの周囲を好適な張力で支持することができる。また、この場合、緩衝体１１２は、ヘッド１０１の形成方向の厚さｔを１００ｍｍ以下に形成することにより、ヘッド１０１を安定的に支持しつつヘッド１０１を伝搬する振動を効果的に減衰させることができるとともに、電子バスドラム１００の構成を簡単化および軽量化することができる。なお、図４においては、ビーター１３１がヘッド１０１を叩打した状態を二点鎖線で示している。 In this case, according to the inventor's experiment, the buffer body 112 supports the periphery of the hitting portion AP of the head 101 with a suitable tension by forming the thickness t in the forming direction of the head 101 to 20 mm or more. be able to. In this case, the buffer body 112 effectively attenuates the vibration propagating through the head 101 while stably supporting the head 101 by forming the thickness t in the forming direction of the head 101 to 100 mm or less. In addition, the configuration of the electronic bass drum 100 can be simplified and reduced in weight. In FIG. 4, a state where the beater 131 strikes the head 101 is indicated by a two-dot chain line.
　また、上記実施形態および上記変形例においては、緩衝体１１２における逃げ孔１１３をヘッド１０１における正面視で上方側に偏った位置に配置した。しかし、逃げ孔１１３は、ヘッド１０１における叩打部分ＡＰに対応した位置に配置されるものであり、必ずしも上記実施形態および上記変形例に限定されるものではない。したがって、逃げ孔１１３は、ヘッド１０１における正面視で中央部分に配置することができることは当然である。 Further, in the above embodiment and the above modification, the escape hole 113 in the buffer body 112 is disposed at a position biased upward in the front view of the head 101. However, the escape hole 113 is disposed at a position corresponding to the hitting portion AP in the head 101, and is not necessarily limited to the above embodiment and the above modification. Therefore, it is natural that the escape hole 113 can be disposed in the center portion of the head 101 when viewed from the front.
　また、上記実施形態および上記変形例においては、逃げ孔１１３は、逃げ孔１１３の中心位置をヘッド１０１における叩打部分ＡＰに位置させて配置した。しかし、逃げ孔１１３は、逃げ孔１１３の中心位置をヘッド１０１における叩打部分ＡＰ以外の位置に位置させて配置することもできる。 Further, in the above embodiment and the above modification, the escape hole 113 is arranged such that the center position of the escape hole 113 is located at the hitting portion AP in the head 101. However, the escape hole 113 can also be arranged with the center position of the escape hole 113 positioned at a position other than the hitting portion AP in the head 101.
　また、上記実施形態および上記変形例においては、緩衝体１１２を正面視でそれぞれ円形に形成した。しかし、緩衝体１１２は、正面視でそれぞれ円形以外の形状、例えば、三角形、方形、五角形または六角形などの多角形または楕円形に形成することもできる。 Further, in the above embodiment and the above modification, each of the buffer bodies 112 is formed in a circular shape when viewed from the front. However, the buffer body 112 can also be formed in a shape other than a circle in front view, for example, a polygon such as a triangle, a square, a pentagon, or a hexagon, or an ellipse.
　また、上記実施形態および上記変形例においては、緩衝体１１２は、シェル１０３の内周面に対して非接触で構成した。これにより、電子バスドラムは、緩衝体１１２の弾性変形を阻害しないとともに緩衝体１１２のヘッド１０１への擦れによる摩耗を防止することができる。また、電子バスドラム１００は、ヘッド１０１を伝搬した振動がシェル１０３で反射することを防止することができ、叩打による振動を精度良く検出することもできる。しかし、緩衝体１１２は、シェル１０３の内周面に対して接触するように構成することもできる。これによれば、シェル１０３の振動を減衰することができる。 Further, in the above embodiment and the above modification, the buffer body 112 is configured to be non-contact with the inner peripheral surface of the shell 103. Thereby, the electronic bass drum does not inhibit the elastic deformation of the buffer body 112 and can prevent wear due to rubbing of the buffer body 112 against the head 101. Further, the electronic bass drum 100 can prevent the vibration propagated through the head 101 from being reflected by the shell 103, and can accurately detect the vibration caused by the tapping. However, the buffer body 112 can also be configured to contact the inner peripheral surface of the shell 103. According to this, the vibration of the shell 103 can be damped.
　また、上記実施形態および上記変形例においては、緩衝体１１２は、反発弾性率が５０％以下の低反発性のウレタン発泡材で構成した。しかし、緩衝体１１２は、ヘッド１０１の裏面１０１ｂに対して弾性的に接触する材料で構成されていればよい。したがって、緩衝体１１２は、反発弾性率が５０％以上の弾性体、またはウレタン発泡材以外の材料（例えば、シリコン樹脂、ポリプロピレン樹脂、ゴム材）などを用いることができる。 In the above embodiment and the above modification, the buffer body 112 is made of a low resilience urethane foam material having a resilience modulus of 50% or less. However, the buffer 112 may be made of a material that elastically contacts the back surface 101 b of the head 101. Therefore, the buffer body 112 can be made of an elastic body having a rebound resilience of 50% or more, or a material other than a urethane foam (for example, a silicon resin, a polypropylene resin, or a rubber material).
　また、上記実施形態および上記変形例においては、緩衝体１１２における内縁部を円献上に形成、すなわち、逃げ孔１１３を正面視でそれぞれ円形に形成した。しかし、逃げ孔１１３は、正面視でそれぞれ円形以外の形状、例えば、三角形、方形、五角形または六角形などの多角形または楕円形に形成することもできる。 Further, in the above embodiment and the above modification, the inner edge portion of the buffer body 112 is formed in a circle, that is, the escape holes 113 are each formed in a circular shape when viewed from the front. However, the escape holes 113 can also be formed in a shape other than a circle in front view, for example, a polygon such as a triangle, a rectangle, a pentagon, or a hexagon, or an ellipse.
　また、上記実施形態および上記変形例においては、振動センサ１１４は、逃げ孔１１３の内側に配置した。しかし、振動センサ１１４は、例えば、図６に示すように、逃げ孔１１３の外側に配置することもできる。なお、この場合、緩衝体１１２をヘッド１０１の略全面を覆う大きさで形成した場合においては、緩衝体１１２における逃げ孔１１３以外の場所に振動センサ１１４を配置するための貫通孔を設けるとよい。なお、図６においては、ビーター１３１がヘッド１０１を叩打した状態を二点鎖線で示している。 In the above embodiment and the above modification, the vibration sensor 114 is disposed inside the escape hole 113. However, the vibration sensor 114 can be arranged outside the escape hole 113 as shown in FIG. In this case, when the buffer body 112 is formed to have a size covering substantially the entire surface of the head 101, a through hole for placing the vibration sensor 114 in a place other than the escape hole 113 in the buffer body 112 may be provided. . In FIG. 6, a state where the beater 131 strikes the head 101 is indicated by a two-dot chain line.
　また、上記実施形態および上記変形例においては、緩衝体１１２は、ヘッド１０１に接触する内縁部を直角に形成した。しかし、緩衝体１１２は、例えば、図７に示すように、ヘッド１０１に面する内縁部を傾斜面状（または円弧状）に面取りして形成することができる。これによれば、電子バスドラム１００は、緩衝体１１２のヘッド１０１への引っ掛かりを防止することができる。なお、図７においては、ビーター１３１がヘッド１０１を叩打した状態を二点鎖線で示している。 Further, in the above embodiment and the above modification, the buffer body 112 has an inner edge portion that contacts the head 101 formed at a right angle. However, for example, as shown in FIG. 7, the buffer 112 can be formed by chamfering the inner edge facing the head 101 into an inclined surface (or arc). According to this, the electronic bass drum 100 can prevent the buffer 112 from being caught on the head 101. In FIG. 7, a state where the beater 131 strikes the head 101 is indicated by a two-dot chain line.
ＡＰ…叩打部分、ｔ…緩衝体の肉厚、
１００…電子バスドラム、１０１…ヘッド、１０１ａ…打面、１０１ｂ…裏面、１０２…ヘッド枠、１０３…シェル、１０４…シェルカバー、１０５…フープ、１０６…テンションボルト、１０７…ラグ、
１１０…内部支持ベース、１１１…ベース支持具、１１２…緩衝体、１１３…逃げ孔、１１３ａ…空洞部、１１４…振動センサ、１１５…クッション体、１１６…支持テーブル、１１６ａ…支持板、１１６ｂ…調整ボルト、
１２０…支持脚、
１３０…叩打機構、１３１…ビーター、１３１ａ…アーム、１３２…揺動支持板、１３２ａ…揺動軸、１３２ｂ…支持柱、１３３…ペダル、１３３ａ…ベース板、１３３ｂ…ベルト。 AP ... tapping part, t ... thickness of buffer body,
DESCRIPTION OF SYMBOLS 100 ... Electronic bass drum, 101 ... Head, 101a ... Hitting surface, 101b ... Back surface, 102 ... Head frame, 103 ... Shell, 104 ... Shell cover, 105 ... Hoop, 106 ... Tension bolt, 107 ... Lug,
DESCRIPTION OF SYMBOLS 110 ... Internal support base, 111 ... Base support tool, 112 ... Buffer, 113 ... Escape hole, 113a ... Hollow part, 114 ... Vibration sensor, 115 ... Cushion body, 116 ... Support table, 116a ... Support plate, 116b ... Adjustment bolt,
120 ... support legs,
DESCRIPTION OF SYMBOLS 130 ... Beating mechanism, 131 ... Beater, 131a ... Arm, 132 ... Swing support plate, 132a ... Swing shaft, 132b ... Support pillar, 133 ... Pedal, 133a ... Base plate, 133b ... Belt

Claims (7)

  1. 　演奏者によって叩かれる打面を構成するヘッドと、
    　前記演奏者によるペダルの操作を介して前記打面を叩くビーターを有した叩打機構と、
    　前記打面の裏面側に同打面における前記ビーターが叩く叩打部分の周囲を囲んで配置された緩衝体と、
    　前記ヘッドの振動を検出する振動センサとを備えたことを特徴とする電子バスドラム。     A head constituting a striking surface struck by the performer;
    A striking mechanism having a beater that strikes the striking surface through operation of the pedal by the performer;
    A shock absorber disposed around the periphery of the hitting portion of the hitting surface hit by the beater on the backside of the hitting surface;
    An electronic bass drum comprising a vibration sensor for detecting vibration of the head.
  2. 　請求項１に記載した前記電子バスドラムにおいて、
    　前記振動センサは、
    　前記打面における前記叩打部分の外側でかつ前記緩衝体の内側に配置されていることを特徴とする電子バスドラム。     The electronic bass drum according to claim 1,
    The vibration sensor is
    An electronic bass drum, wherein the electronic bass drum is disposed outside the hitting portion on the hitting surface and inside the buffer.
  3. 　請求項１または請求項２に記載した前記電子バスドラムにおいて、
    　前記緩衝体は、
    　前記叩打部分を囲む内縁部が円環状に形成されていることを特徴とする電子バスドラム。     In the electronic bass drum according to claim 1 or 2,
    The buffer is
    An electronic bass drum, wherein an inner edge surrounding the hitting portion is formed in an annular shape.
  4. 　請求項１ないし請求項３のうちのいずれか１つに記載した前記電子バスドラムにおいて、
    　前記緩衝体は、
    　前記ヘッドの形成方向における肉厚が２０ｍｍ以上であることを特徴とする電子バスドラム。     In the electronic bass drum according to any one of claims 1 to 3,
    The buffer is
    An electronic bass drum, wherein the thickness in the head forming direction is 20 mm or more.
  5. 　請求項４に記載した前記電子バスドラムにおいて、
    　前記緩衝体は、
    　前記ヘッドの形成方向における肉厚が１００ｍｍ以下であることを特徴とする電子バスドラム。     In the electronic bass drum according to claim 4,
    The buffer is
    An electronic bass drum, wherein a thickness in the head forming direction is 100 mm or less.
  6. 　請求項１ないし請求項５のうちのいずれか１つに記載した前記電子バスドラムにおいて、
    　前記緩衝体は、
    　前記ヘッドの外縁部を支持する筒状のシェルの内周部に対して非接触であることを特徴とする電子バスドラム。     In the electronic bass drum according to any one of claims 1 to 5,
    The buffer is
    An electronic bass drum characterized by being in non-contact with an inner peripheral portion of a cylindrical shell that supports an outer edge portion of the head.
  7. 　請求項１ないし請求項６のうちのいずれか１つに記載した前記電子バスドラムにおいて、
    　前記緩衝体は、
    　反発弾性率が５０％以下の弾性体で構成されていることを特徴とする電子バスドラム。     In the electronic bass drum according to any one of claims 1 to 6,
    The buffer is
    An electronic bass drum comprising an elastic body having a rebound resilience of 50% or less.
PCT/JP2017/022743 2016-11-24 2017-06-20 Electronic bass drum WO2018096720A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60159500U (en) * 1984-03-31 1985-10-23 星野楽器株式会社 electronic drum pad
JP2004070034A (en) * 2002-08-07 2004-03-04 Yamaha Corp Electronic percussion instrument
JP2009128427A (en) * 2007-11-20 2009-06-11 Yamaha Corp Electronic percussion instrument
JP2009222758A (en) * 2008-03-13 2009-10-01 Yamaha Corp Electronic percussion instrument

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6138696U (en) * 1984-08-11 1986-03-11 星野楽器株式会社 electronic drum

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60159500U (en) * 1984-03-31 1985-10-23 星野楽器株式会社 electronic drum pad
JP2004070034A (en) * 2002-08-07 2004-03-04 Yamaha Corp Electronic percussion instrument
JP2009128427A (en) * 2007-11-20 2009-06-11 Yamaha Corp Electronic percussion instrument
JP2009222758A (en) * 2008-03-13 2009-10-01 Yamaha Corp Electronic percussion instrument

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