Pads for electronic percussion instruments and electronic cymbal pads

Abstract

The present invention provides an electronic percussion instrument pad and an electronic cymbal pad that can achieve both a reduction in impact noise and a suppression of a decrease in the detection accuracy of the vibration sensor. [Solution] The tom pad 14 comprises a striking surface 20, a diaphragm 40, a case 30, a vibration sensor 41, and a first elastic member 45. The striking surface 20 has a back surface 20b opposite to the striking surface 20a, which is made of a vibration absorbing member 21. The diaphragm 40 is in contact with the back surface 20b. The diaphragm 40 has a smaller external dimension than the back surface 20b. The case 30 supports the striking surface 20 and houses the diaphragm 40. The vibration sensor 41 is positioned on the opposite side of the striking surface 20, with the diaphragm 40 in between. The first elastic member 45 presses the vibration sensor 41 and the diaphragm 40 toward the back surface 20b.

Description

Technical Field

[0001] The present invention relates to pads for electronic percussion instruments and electronic cymbal pads.

Background Art

[0002] Patent Document 1 discloses a head for an electronic percussion instrument including a cylindrical body portion, a sheet-like head member provided in a state of being tensioned at an upper end portion of the body portion, and a vibration absorbing member that absorbs vibration of the head member. The head member has a struck surface that is struck by a performer. The upper surface of the vibration absorbing member contacts the entire back surface of the head member on the side opposite to the struck surface inside the body portion.

[0003] Further, the head for an electronic percussion instrument includes a support plate that supports the vibration absorbing member, a vibration detection sensor that detects vibration of the support plate, and an electronic music sound generation unit that generates music sound based on a detection signal of the vibration detection sensor. The support plate supports the entire lower surface of the vibration absorbing member. The vibration detection sensor is disposed on the lower surface of the central portion of the support plate. The vibration detection sensor detects vibration of the support plate when the head member is struck and outputs a detection signal to the electronic music sound generation unit.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In electronic percussion instrument heads, the impact noise of the head is reduced because the upper surface of the vibration-absorbing member contacts the entire underside of the head member. However, since the support plate supports the entire underside of the vibration-absorbing member, the vibration of the support plate is easily restricted by the vibration-absorbing member. As a result, there is a risk that the vibration of the head member will not be transmitted to the support plate via the vibration-absorbing member. Consequently, the detection accuracy of the vibration detection sensor may decrease. This decrease in detection accuracy becomes more pronounced the weaker the impact on the head member. Therefore, in electronic percussion instruments, it is desirable to achieve both a reduction in impact noise and a suppression of the decrease in detection accuracy of the vibration detection sensor. [Means for solving the problem]

[0006] This document describes embodiments of electronic percussion instrument pads and electronic cymbal pads that address the above-mentioned problems. [Aspect 1] A pad for an electronic percussion instrument, comprising: a striking surface having a striking surface, the back surface opposite to the striking surface being composed of a vibration-absorbing member that absorbs vibrations of the striking surface; a diaphragm that contacts the back surface and has smaller external dimensions than the back surface; a case that supports the striking surface and houses the diaphragm; a vibration sensor positioned on the opposite side of the striking surface from the striking surface, sandwiching the diaphragm, and detecting vibrations of the diaphragm; and an elastic member that presses the vibration sensor and the diaphragm toward the back surface.

[0007] With the above configuration, since the part that is struck has a vibration-absorbing member, the impact noise of the struck surface can be reduced. In addition, since the vibrations associated with the impact of the part that is struck are less likely to be transmitted to the case, it is possible to suppress the reaction of vibration sensors on other pads in the electronic percussion instrument caused by the transmission of such vibrations to other pads.

[0008] Furthermore, with the above configuration, the external dimensions of the diaphragm are smaller than the external dimensions of the back surface of the part being struck. This suppresses an increase in the contact area between the diaphragm and the vibration absorbing member, making the diaphragm more prone to vibration. As a result, the vibration sensor becomes more likely to detect the vibration of the diaphragm.

[0009] Furthermore, the elastic member presses the vibration sensor and diaphragm toward the back surface of the area being struck. This makes it easier for vibrations to be transmitted to the diaphragm even when the vibration of the vibration-absorbing member accompanying the impact on the surface being struck is small. Also, even if vibrations from other pads in the electronic percussion instrument are transmitted to the pad, these vibrations are absorbed by the elastic member, thereby suppressing their transmission to the diaphragm and vibration sensor. As a result, even when the vibrations transmitted to the diaphragm accompanying the impact on the surface being struck are small, the vibration sensor can distinguish and detect these vibrations as the vibrations of the pad from those of other pads.

[0010] From the above, it is possible to reduce the impact noise by absorbing the vibrations associated with the impact on the impacted surface with a vibration-absorbing member, while also effectively transmitting the vibrations to the diaphragm. Therefore, it is possible to achieve both a reduction in impact noise and suppression of a decrease in the detection accuracy of the vibration sensor.

[0011] [Aspect 2] The case houses the part to be struck with the striking surface exposed to the outside, as described in [Aspect 1]. With the above configuration, the part that is struck is housed in the case, thus protecting the part that is struck.

[0012] [Aspect 3] The pad for an electronic percussion instrument according to [Aspect 1] or [Aspect 2], wherein the diaphragm is in contact with the back surface in an unfixed state. In the above configuration, the diaphragm is in non-fixed contact with the back surface of the part to be struck, which is made up of vibration-absorbing members. Therefore, compared to the case where the diaphragm is fixed to the back surface of the part to be struck, the vibration of the diaphragm is less likely to be hindered by the vibration-absorbing members.

[0013] Furthermore, with the above configuration, the diaphragm is pressed against the back surface of the impacted area in an unfixed state by an elastic member. As a result, even if the vibration of the vibration-absorbing member accompanying the impact on the impacted surface is small, the vibration of the diaphragm is more easily tolerated due to the elasticity of the elastic member.

[0014] [Aspect 4] The vibration sensor has a flat detection unit for detecting vibrations of the diaphragm, and the external dimensions of the diaphragm are greater than or equal to the external dimensions of the detection unit, the electronic percussion instrument pad according to any one of [Aspect 1] to [Aspect 3].

[0015] With the above configuration, the entire surface of the detection unit is covered by the diaphragm. This prevents contact between the vibration absorbing member and the vibration sensor when the vibration absorbing member deforms due to impact on the surface being struck.

[0016] [Aspect 5] An electronic percussion instrument pad according to any one of [Aspect 1] to [Aspect 4], wherein the elastic member is a first elastic member, and a second elastic member is disposed between the diaphragm and the vibration sensor.

[0017] With the above configuration, since a second elastic member is interposed between the diaphragm and the vibration sensor, the vibration of the diaphragm is less restricted by the vibration sensor compared to when the diaphragm is fixed to the vibration sensor. As a result, vibrations associated with the impact on the surface being struck are more easily transmitted to the diaphragm via the vibration absorbing member. Therefore, a decrease in the detection accuracy of the vibration sensor can be suppressed.

[0018] [Aspect 6] The external dimensions of the second elastic member are smaller than the external dimensions of the diaphragm, as described in [Aspect 5], for an electronic percussion instrument pad. With the above configuration, the increase in the contact area between the diaphragm and the second elastic member is suppressed, making the diaphragm more prone to vibration. Therefore, a decrease in the detection accuracy of the vibration sensor can be suppressed.

[0019] Furthermore, by changing the external dimensions of the second elastic member, the contact area between the diaphragm and the second elastic member changes, thereby allowing the detection accuracy of the vibration sensor to be adjusted. [Aspect 7] The diaphragm and the vibration sensor are bonded together, and the pad for an electronic percussion instrument according to any one of [Aspect 1] to [Aspect 4].

[0020] When the pad for an electronic percussion instrument is applied to a bass pad or the like whose striking surface is strongly struck, if there is an elastic body between the diaphragm and the vibration sensor, the elastic body may be compressed by the strike on the striking surface, and there is a risk that the diaphragm and the vibration sensor may come into contact. In this case, the vibration sensor may detect vibrations both in the vibration accompanying the strike on the striking surface and in the vibration accompanying the contact of the diaphragm. That is, the electronic percussion instrument may generate two sounds for one strike.

[0021] In this regard, according to the above configuration, since the diaphragm and the vibration sensor are adhered, it is possible to suppress the vibration sensor from detecting the vibration accompanying the contact of the diaphragm. Therefore, it is possible to suppress the electronic percussion instrument from generating two sounds for one strike.

[0022] [Aspect 8] The percussion part includes a sheet that constitutes the striking surface and covers the surface of the vibration absorption member, and is the pad for an electronic percussion instrument according to any one of [Aspect 1] to [Aspect 7].

[0023] According to the above configuration, since the surface of the vibration absorption member is protected by the sheet, it is possible to suppress the deterioration of the vibration absorption member accompanying the strike on the striking surface. [Aspect 9] The sheet is a mesh material, and is the pad for an electronic percussion instrument according to [Aspect 8].

[0024] According to the above configuration, since the sheet is a mesh material, vibrations during the strike on the striking surface are less likely to be transmitted to the surrounding air. As a result, compared with the case where the sheet has no holes, it is possible to reduce the strike sound of the striking surface.

[0025] [Aspect 10] The vibration absorption member and the sheet are integrated, and are the pad for an electronic percussion instrument according to [Aspect 8] or [Aspect 9]. According to the above configuration, it is possible to suppress a gap from occurring between the sheet and the vibration absorption member due to wrinkles occurring in the sheet accompanying the strike on the striking surface. Therefore, it is possible to suppress the strike sound of the striking surface from increasing due to the above gap.

[0026] [Aspect 11] The pad for an electronic percussion instrument according to any one of [Aspect 8] to [Aspect 10], wherein the part to be struck is housed in the case such that the central part of the striking surface is curved and exposed to the outside, with the central part protruding more than the other parts.

[0027] With the above configuration, the sheet is stretched along the surface of the vibration-absorbing member. This makes it easier for the sheet and the vibration-absorbing member to adhere closely together, thus suppressing the formation of gaps between the sheet and the vibration-absorbing member. Therefore, it is possible to suppress the increase in impact noise on the impacted surface due to these gaps.

[0028] [Aspect 12] The case comprises a case body for housing the part to be struck, and a flexible cover attached to the case body, wherein the cover has an opening that exposes the surface to be struck and a pressing portion that presses the outer periphery of the part to be struck, as described in any one of [Aspect 1] to [Aspect 11].

[0029] With the above configuration, the outer periphery of the part to be struck is held down by the retaining part, thereby preventing the part to be struck from falling out of the case through the opening in the cover. Furthermore, since the cover is flexible, even when the cover is attached to the case body, the part to be struck can be attached to and detached from the case through the opening in the cover by deforming the cover and the part to be struck. Therefore, the part to be struck can be easily replaced.

[0030] [Aspect 13] The striking portion comprises a regulating member fixed to the outer circumference of the striking surface and pressed by the pressing portion, wherein the regulating member has lower flexibility than the vibration absorbing member, as described in [Aspect 12].

[0031] According to the above configuration, the restricting member fixed to the outer periphery of the impacted surface has lower flexibility than the vibration-absorbing member. Therefore, when the impacted surface is struck, the deformation of the outer periphery of the vibration-absorbing member is restricted by the restricting member. This prevents the impacted part from falling out of the case through the opening in the cover.

[0032] Furthermore, with the above configuration, both the vibration absorbing member and the regulating member are flexible. Therefore, by deforming the regulating member together with the vibration absorbing member, the part that is struck can be attached to and detached from the case through the opening in the cover.

[0033] [Aspect 14] The surface of the cover is provided with an annular projection surrounding the opening, as described in [Aspect 12], for use as an electronic percussion instrument pad. With the above configuration, the performer can play a rimshot that simulates striking the target surface and the projection simultaneously.

[0034] [Aspect 15] An electronic cymbal pad comprising: a striking portion having a striking surface, the back surface opposite to the striking surface being composed of a vibration-absorbing member that absorbs vibrations of the striking surface; a case that houses the striking portion with the striking surface exposed to the outside; and a vibration sensor for detecting vibrations of the striking portion, wherein the striking portion comprises a bow portion that constitutes the upper surface of the electronic cymbal pad and an edge portion that constitutes the outer periphery continuous with the upper surface of the electronic cymbal pad, and the bow portion and the edge portion are exposed from the case.

[0035] With acoustic cymbals, playing sometimes involves striking the edge of the cymbal. For example, with electronic cymbal pads, if the edge is covered by a case, striking the edge will also strike the case. In this case, a sound will be produced from the case striking the pad.

[0036] In this respect, with the above configuration, the bow and edge portions of the striking part are exposed from the case. As a result, the case is not struck when the bow and edge portions are struck, and the vibration-absorbing member reduces the impact noise of the bow and edge portions. Therefore, the quietness of the electronic cymbal pad can be improved.

[0037] [Aspect 16] The case has a bottom wall that supports the back surface of the striking portion opposite to the striking surface, and the bottom wall has a notch that exposes the portion of the back surface that constitutes the edge portion, as described in [Aspect 15].

[0038] According to the above configuration, the portion of the back surface of the striking area that constitutes the edge is exposed through a notch in the case. Therefore, when the performer strikes the edge with a stick and the edge deforms, the notch functions as a space for the stick to move out of the way. Consequently, contact noise between the stick and the case can be suppressed. [Effects of the Invention]

[0039] According to the present invention, it is possible to achieve both a reduction in impact noise and suppression of a decrease in the detection accuracy of the vibration sensor. [Brief explanation of the drawing]

[0040] [Figure 1] Figure 1 is a perspective view of an electronic drum set. [Figure 2] Figure 2 is an exploded perspective view of the tom pad of the first embodiment. [Figure 3] Figure 3 is an exploded perspective view of the impacted area in Figure 2. [Figure 4] Figure 4 is a cross-sectional view of the tom pad shown in Figure 1. [Figure 5] Figure 5 is an exploded perspective view showing the tom pad and bracket from Figure 1 in disassembled form. [Figure 6] Figure 6 is a cross-sectional view of the snare drum pad according to the second embodiment. [Figure 7]Figure 7 is an exploded perspective view of the bass drum pad of the third embodiment. [Figure 8] Figure 8 is an exploded perspective view of the impacted area in Figure 7. [Figure 9] Figure 9 is a cross-sectional view of the bass drum pad shown in Figure 7. [Figure 10] Figure 10 is an exploded perspective view of the cymbal pad according to the fourth embodiment. [Figure 11] Figure 11 is an exploded perspective view of the impacted area in Figure 10. [Figure 12] Figure 12 is a cross-sectional view of the cymbal pad shown in Figure 10. [Figure 13] Figure 13 is a cross-sectional view along the line 13A-13A in Figure 12. [Figure 14] Figure 14 is a bottom view of the cymbal pad shown in Figure 10. [Modes for carrying out the invention]

[0041] [First Embodiment] The following describes a first embodiment in which an electronic percussion pad is materialized as a tom pad in an electronic drum set, with reference to Figures 1 to 5.

[0042] As shown in Figure 1, the electronic drum set 10 comprises a stand 11, a bass drum pad 12, a snare drum pad 13, a floor tom pad 14a, a first tom pad 14b, a second tom pad 14c, a hi-hat cymbal pad 15a, a first cymbal pad 15b, and a second cymbal pad 15c. Each pad is connected to the stand 11 via various connecting members.

[0043] The electronic drum set 10 includes a sound source device 16 that produces sound based on the output signals of vibration sensors provided on each pad. The sound source device 16 is mounted on a stand 11. The sound source device 16 is connected to the vibration sensors of each pad by cables (not shown).

[0044] The pads, excluding the bass drum pad 12, are played by the performer striking them with a stick (not shown). The bass drum pad 12 is played by a pedal device 17 equipped with a beater 17a that oscillates in response to the performer's foot operation. The hi-hat cymbal pad 15a changes in tone when struck depending on whether or not the performer operates the hi-hat pedal 18.

[0045] The floor tom pad 14a, the first tom pad 14b, and the second tom pad 14c have the same configuration. Hereafter, the floor tom pad 14a, the first tom pad 14b, and the second tom pad 14c will be collectively referred to as "tom pad 14".

[0046] (Overall configuration of the Tampad 14) As shown in Figure 2, the tom pad 14 comprises a striking portion 20, a case 30, a diaphragm 40, a vibration sensor 41, a first elastic member 45, and a second elastic member 47.

[0047] (Configuration of the part that is hit 20) The striking part 20 has a striking surface 20a that is struck by the stick. The striking part 20 comprises a vibration absorbing member 21, a sheet 25 covering the surface of the vibration absorbing member 21, and a cushioning member 26 covering the outer periphery of the surface of the sheet 25. The sheet 25 constitutes the striking surface 20a. The vibration absorbing member 21 has the function of absorbing vibrations of the striking surface 20a.

[0048] As shown in Figure 3, the vibration absorbing member 21 is composed of a first sponge 22, a second sponge 23, and a third sponge 24. The first sponge 22 is a hard sponge. The second sponge 23 and the third sponge 24 are soft sponges.

[0049] The first sponge 22, the second sponge 23, and the third sponge 24 are all disc-shaped. The diameter of the second sponge 23 is approximately the same as the diameter of the first sponge 22. The second sponge 23 is bonded to the underside of the first sponge 22 with an adhesive (not shown). The second sponge 23 has a circular central hole 23a that penetrates through the second sponge 23 in the thickness direction. The diameter of the third sponge 24 is approximately the same as the diameter of the central hole 23a.

[0050] As shown in Figure 4, the third sponge 24 is housed inside the central hole 23a and is bonded to the lower surface of the first sponge 22 with an adhesive (not shown). In the impacted portion 20, the back surface 20b opposite to the impacted surface 20a is composed of the second sponge 23 and the third sponge 24.

[0051] As shown in Figure 3, the sheet 25 is circular in shape and has a diameter approximately the same as the diameter of the first sponge 22. The sheet 25 covers the surface of the vibration absorbing member 21, more specifically, the surface of the first sponge 22. The sheet 25 is a flexible mesh material. The sheet 25 is formed from, for example, a resin material. The outer periphery of the sheet 25 is bonded to the outer periphery of the surface of the first sponge 22 by an adhesive (not shown). That is, the vibration absorbing member 21 and the sheet 25 are integrated. In this embodiment, only the outer periphery of the sheet 25 is bonded to the first sponge 22.

[0052] The cushioning member 26 is an annular shape with a diameter approximately the same as the diameter of the sheet 25. The cushioning member 26 is composed of multiple felt pieces extending in an arc shape and arranged in a circular pattern. The cushioning member 26 is bonded to the outer periphery of the surface of the sheet 25 with an adhesive (not shown). In other words, the vibration absorbing member 21, the sheet 25, and the cushioning member 26 are integrated into one unit. The cushioning member 26 has the function of preventing the generation of contact noise between the sheet 25 and the cover 36, which will be described later, when the impacted part 20 is struck.

[0053] (Configuration of Case 30) As shown in Figure 2, the case 30 houses the part to be struck 20 with the impacted surface 20a exposed to the outside. It can also be said that the case 30 supports the part to be struck 20.

[0054] The case 30 comprises a case body 31 and a cover 36 attached to the case body 31. The case body 31 is made of, for example, a rigid resin material. The cover 36 is made of, for example, a soft resin material. The cover 36 is flexible.

[0055] The case body 31 houses the striking part 20, the diaphragm 40, the vibration sensor 41, the first elastic member 45, and the second elastic member 47. In plan view, the case body 31 has a circular bottom wall 32 and an annular case side periphery wall 35 that protrudes from the outer edge of the bottom wall 32.

[0056] As shown in Figure 4, the bottom wall 32 has a dome-shaped curved portion 33 that is positioned in the direction of the protrusion of the case-side peripheral wall 35 as it approaches the center. In the center of the curved portion 33, there is a receiving recess 34 that is recessed in the direction opposite to the protrusion of the case-side peripheral wall 35.

[0057] The bottom wall 32 has a mounting portion 30a that protrudes downward and to which a bracket 50, described later, is attached. Multiple locking holes 35a are provided in the case-side peripheral wall 35, spaced apart from each other in the circumferential direction.

[0058] The cover 36 has an annular pressing portion 37 and an annular cover-side peripheral wall 38 that protrudes from the outer peripheral edge of the pressing portion 37. The pressing portion 37 covers the protruding end surface of the case-side peripheral wall 35 and protrudes further inward from the case-side peripheral wall 35 towards the inner peripheral side of the case body 31. The cover-side peripheral wall 38 covers the outer peripheral surface of the case-side peripheral wall 35. The pressing portion 37 presses the cushioning member 26, which constitutes the outer peripheral part of the impacted portion 20, from the side opposite to the bottom wall 32. The pressing portion 37 forms an opening 36a that exposes the impacted surface 20a.

[0059] The retaining portion 37 is provided with multiple locking claws 37a that each engage with a plurality of locking holes 35a in the case-side peripheral wall 35. The cover 36 is attached to the case body 31 by the engagement of each locking claw 37a with the locking holes 35a.

[0060] The impacted portion 20 is housed in the case 30 in a state that follows the curved portion 33 of the bottom wall 32, and its outer circumference is pressed down all around by the pressing portion 37. Therefore, the impacted portion 20 is housed in the case 30 in a curved state in which the central part of the impacted surface 20a protrudes more than the other parts and is exposed to the outside. The central part of the impacted portion 20 protrudes beyond the pressing portion 37 to the outside of the case 30. When the impacted portion 20 is housed in the case 30, the soft sponges, the second sponge 23 and the third sponge 24, are deformed in the thickness direction, but the hard sponge, the first sponge 22, is hardly deformed in the thickness direction.

[0061] As will be described in detail later, the diaphragm 40, whose vibration is detected by the vibration sensor 41, is in contact with the third sponge 24 in an unfixed state. To improve the detection accuracy of the vibration sensor 41, it is preferable to construct the vibration absorbing member 21 using only the first sponge 22, which is a hard sponge, and to have the diaphragm 40 in contact with the first sponge 22. However, if the vibration absorbing member 21 is constructed using only the first sponge 22, there is a risk that the impact noise of the part to be struck 20 will become louder, or that the contact noise between the first sponge 22 and the case 30 or the diaphragm 40 will become louder. To suppress these inconveniences, in this embodiment, the second sponge 23 and the third sponge 24 are interposed between the first sponge 22 and the bottom wall 32 of the case body 31. In addition, in order to make it easier to vibrate the diaphragm 40, the thickness of the third sponge 24, which the diaphragm 40 contacts, is set to be smaller than the thickness of the second sponge 23.

[0062] (Configuration of the diaphragm 40) The diaphragm 40 has a disc-shaped base 40a and an enlarged diameter portion 40b that is larger in diameter than the base 40a. The diaphragm 40 is made of, for example, a resin material. The diaphragm 40 is not in contact with the case 30. The diaphragm 40 is in contact with the back surface 20b of the striking portion 20, which is composed of a second sponge 23 and a third sponge 24. More specifically, the enlarged diameter portion 40b is in non-fixed contact only with the third sponge 24 that constitutes the back surface 20b. The upper surface of the enlarged diameter portion 40b is curved in a dome shape along the back surface 20b so that it is positioned higher towards the center. This makes it easier for the enlarged diameter portion 40b to make uniform contact with the third sponge 24.

[0063] The diaphragm 40 has a smaller outer dimension than the back surface 20b of the striking surface 20. More specifically, the diameter of the enlarged portion 40b is smaller than the diameter of the third sponge 24. The thickness of the diaphragm 40 is set to a thickness that makes it difficult for the diaphragm 40 to undergo plastic deformation when the part to be struck 20 is struck.

[0064] (Configuration of vibration sensor 41) As shown in Figure 2, the vibration sensor 41 has a flat detection unit 42 that detects vibrations of the diaphragm 40 and a cable 43 connected to the detection unit 42. The vibration sensor 41 detects vibrations transmitted from the diaphragm 40 to the detection unit 42 and outputs a signal to the sound source device 16 corresponding to the magnitude of the vibrations.

[0065] The detection unit 42 is positioned on the opposite side of the diaphragm 40 from the part that is struck 20. The detection unit 42 is, for example, a disc-shaped piezoelectric element. The diameter of the detection unit 42 is the same as the diameter of the enlarged portion 40b of the diaphragm 40. The thickness of the detection unit 42 is smaller than the thickness of the diaphragm 40. The thickness of the detection unit 42 is set to a thickness that allows the detection unit 42 to vibrate easily when vibration is transmitted from the diaphragm 40.

[0066] Cable 43 extends outside the case 30, passing through the bottom wall 32. A jack 44 is provided at the end of cable 43 to which a plug (not shown) extending from the sound source device 16 is connected. The jack 44 is fixed to the bottom surface of the case 30.

[0067] (Configuration of the first elastic member 45) As shown in Figure 4, the first elastic member 45 is positioned on the opposite side of the impacted part 20, with the detection unit 42 in between. The first elastic member 45 is made of, for example, a hard sponge. The first elastic member 45 is housed in the housing recess 34. The first elastic member 45 is bonded to the bottom surface of the housing recess 34 and the detection unit 42 by an adhesive (not shown). The first elastic member 45 presses the detection unit 42 and the diaphragm 40 toward the back surface 20b of the impacted part 20, and more specifically toward the third sponge 24. As a result, the third sponge 24 is compressed by the diaphragm 40.

[0068] The first elastic member 45 is disc-shaped. The diameter of the first elastic member 45 is the same as the diameter of the detection unit 42. The thickness of the first elastic member 45 is set so that when the striking unit 20 is housed in the case 30, the first elastic member 45 can press against the detection unit 42 and the diaphragm 40 toward the back surface 20b.

[0069] As shown in Figure 2, the first elastic member 45 has a relief portion 46 that allows the cable 43 of the vibration sensor 41 to pass through. The relief portion 46 is formed by cutting out the outer circumference of the first elastic member 45.

[0070] (Configuration of the second elastic member 47) As shown in Figure 4, the second elastic member 47 is positioned between the diaphragm 40 and the vibration sensor 41. More specifically, the second elastic member 47 is bonded to the base 40a of the diaphragm 40 and the detection unit 42 by an adhesive (not shown). The second elastic member 47 is formed of, for example, a soft sponge.

[0071] The second elastic member 47 is disc-shaped. The diameter of the second elastic member 47 is the same as the diameter of the base 40a of the diaphragm 40, and smaller than the diameters of the enlarged diameter portion 40b and the detection portion 42 of the diaphragm 40. The thickness of the second elastic member 47 is greater than the thickness of the detection portion 42, and smaller than the thickness of the diaphragm 40 and the thickness of the first elastic member 45.

[0072] (Configuration of bracket 50) As shown in Figure 5, the tom pad 14 is connected to a support rod 11a attached to the stand 11 via a bracket 50. The bracket 50 has a base 51, a pair of fixing parts 52, and a holding part 53. The base 51 is flat. In plan view, the base 51 is rectangular with long and short sides. The pair of fixing parts 52 protrude upward from both ends of the base 51 in the direction of the short side and face each other in the direction of the short side. Each fixing part 52 is flat and extends in the direction of the long side of the base 51.

[0073] The pair of fixing parts 52 are aligned along the long side of the bottom part 51 and are fixed to the mounting part 30a by two bolts 60 that pass through the pair of fixing parts 52 and the mounting part 30a (see Figure 4), and by two nuts 61 attached to the two bolts 60. Each bolt 60 passes through the pair of fixing parts 52 and is inserted into a pair of cylindrical collars 62 that are inserted into the mounting part 30a. In other words, a pair of collars 62 are interposed between each bolt 60 and the bracket 50.

[0074] The bolt 60 is made of a metal material. The collar 62 is made of a resin material. The collar 62 has the function of preventing the generation of contact noise between the bolt 60 and the bracket 50.

[0075] As shown in Figure 4, the holding portion 53 is provided at one end of the bottom portion 51 in the direction of its long side. The holding portion 53 has a cylindrical portion 54 into which the support rod 11a is inserted, and a flat plate-shaped support portion 55 extending from the cylindrical portion 54. The cylindrical portion 54 extends in the direction of its short side. A slit is formed in the cylindrical portion 54 along its entire axial direction. One end of the cylindrical portion 54 in the direction of its circumferential side is continuous with one end of the bottom portion 51 in the direction of its long side. The support portion 55 extends along the bottom portion 51 from the other end of the cylindrical portion 54 in the direction of its circumferential side.

[0076] The retaining portion 53 is configured such that a bolt 63, which passes through the support portion 55 and the bottom portion 51, is screwed into a nut 64 embedded in the mounting portion 30a, thereby allowing the support rod 11a inserted into the cylindrical portion 54 to be tightened. A washer 65 is provided between the bolt 63 and the support portion 55.

[0077] <Operation of this embodiment> According to the tom pad 14 of this embodiment, since the striking part 20 has a vibration absorbing member 21, the impact noise of the striking surface 20a can be reduced. In addition, since the vibrations associated with the impact of the striking part 20 are less likely to be transmitted to the case 30, it is possible to suppress the vibrations being transmitted to other pads via the stand 11 and causing the vibration sensors of those other pads to react.

[0078] Furthermore, the external dimensions of the diaphragm 40 are smaller than the external dimensions of the back surface 20b of the striking part 20. As a result, the increase in the contact area between the diaphragm 40 and the vibration absorbing member 21 is suppressed, making the diaphragm 40 more prone to vibration. Consequently, the vibration sensor 41 becomes more likely to detect vibrations from the diaphragm 40.

[0079] Furthermore, the first elastic member 45 presses the vibration sensor 41 and the diaphragm 40 toward the back surface 20b of the striking surface 20. This makes it easier for vibrations to be transmitted to the diaphragm 40 even when the vibration of the vibration absorbing member 21 due to the striking of the striking surface 20a is small. Also, even if vibrations due to the striking of other pads are transmitted to the tom pad 14, these vibrations are absorbed by the first elastic member 45, thereby suppressing their transmission to the diaphragm 40 and vibration sensor 41. As a result, even when the vibrations transmitted to the diaphragm 40 due to the striking of the striking surface 20a are small, the vibration sensor 41 can distinguish and detect these vibrations as vibrations of the tom pad 14 from vibrations of other pads.

[0080] <Effects of this embodiment> (1-1) The tom pad 14 comprises a striking surface 20, a diaphragm 40, a case 30, a vibration sensor 41, and a first elastic member 45. The striking surface 20 has a back surface 20b opposite to the striking surface 20a, which is made of a vibration absorbing member 21. The diaphragm 40 is in contact with the back surface 20b. The diaphragm 40 has an external dimension smaller than the back surface 20b. The case 30 supports the striking surface 20 and houses the diaphragm 40. The vibration sensor 41 is positioned on the opposite side of the striking surface 20, with the diaphragm 40 in between. The first elastic member 45 presses the vibration sensor 41 and the diaphragm 40 toward the back surface 20b.

[0081] With the above configuration, the vibrations associated with the impact on the impacted surface 20a are absorbed by the vibration absorbing member 21, thereby reducing the impact noise while allowing the vibrations to be suitably transmitted to the diaphragm 40. Therefore, it is possible to achieve both a reduction in impact noise and suppression of a decrease in the detection accuracy of the vibration sensor 41.

[0082] (1-2) Case 30 houses the part to be struck 20 with the striking surface 20a exposed to the outside. With the above configuration, the part that is struck 20 is housed in the case 30, thus protecting the part that is struck 20.

[0083] (1-3) The diaphragm 40 is in contact with the back surface 20b in an unfixed state. According to the above configuration, the diaphragm 40 is in contact with the back surface 20b of the striking part 20, which is formed by the vibration absorbing member 21, in an unfixed state. Therefore, compared to the case where the diaphragm 40 is fixed to the back surface 20b of the striking part 20, the vibration of the diaphragm 40 is less likely to be hindered by the vibration absorbing member 21.

[0084] Furthermore, the diaphragm 40 is pressed against the back surface 20b of the striking surface 20 in an unfixed state by the first elastic member 45. As a result, even if the vibration of the vibration absorbing member 21 due to the impact on the striking surface 20a is small, the vibration of the diaphragm 40 is more easily tolerated due to the elasticity of the first elastic member 45.

[0085] (1-4) The diameter of the diaphragm 40 is the same as the diameter of the detection unit 42. With the above configuration, the entire surface of the detection unit 42 is covered by the diaphragm 40. This prevents contact between the vibration absorbing member 21 and the vibration sensor 41 when the vibration absorbing member 21 is deformed by the impact on the impacted surface 20a.

[0086] (1-5) The second elastic member 47 is positioned between the diaphragm 40 and the detection unit 42. With the above configuration, since the second elastic member 47 is interposed between the diaphragm 40 and the detection unit 42, the vibration of the diaphragm 40 is less likely to be restricted by the detection unit 42 compared to the case where the diaphragm 40 is fixed to the detection unit 42. As a result, vibrations associated with the impact on the impacted surface 20a are more easily transmitted to the diaphragm 40 via the vibration absorbing member 21. Therefore, a decrease in the detection accuracy of the vibration sensor 41 can be suppressed.

[0087] (1-6) The diameter of the second elastic member 47 is smaller than the diameter of the diaphragm 40. With the above configuration, the increase in the contact area between the diaphragm 40 and the second elastic member 47 is suppressed, making it less likely for the vibration of the diaphragm 40 to be dampened. Therefore, a decrease in the detection accuracy of the vibration sensor 41 can be suppressed.

[0088] Furthermore, by changing the external dimensions of the second elastic member 47, the contact area between the diaphragm 40 and the second elastic member 47 changes, thereby allowing the detection accuracy of the vibration sensor 41 to be adjusted. (1-7) The part to be struck 20 comprises a sheet 25 that constitutes the surface to be struck 20a and covers the surface of the vibration absorbing member 21.

[0089] With the above configuration, the surface of the vibration absorbing member 21 is protected by the sheet 25, so that deterioration of the vibration absorbing member 21 due to impact on the impacted surface 20a can be suppressed. (1-8) Sheet 25 is a mesh material.

[0090] With the above configuration, since the sheet 25 is made of mesh material, vibrations from the impacted surface 20a are less likely to be transmitted to the surrounding air when it is struck. As a result, the impact noise of the impacted surface 20a can be reduced compared to the case where the sheet 25 does not have holes penetrating it.

[0091] (1-9) The vibration absorbing member 21 and the sheet 25 are integrated into one unit. With the above configuration, it is possible to suppress the formation of a gap between the sheet 25 and the vibration absorbing member 21 due to wrinkles forming in the sheet 25 as the impacted surface 20a is struck. Therefore, it is possible to suppress the increase in the sound of impact on the impacted surface 20a due to the gap.

[0092] Furthermore, if only the outer periphery of the sheet 25 is bonded to the first sponge 22 with adhesive, it is possible to suppress the exposure of the adhesive to the surface of the sheet 25 through the mesh of the sheet 25.

[0093] (1-10) The part to be struck 20 is housed in the case 30 such that the central part of the striking surface 20a is curved and exposed to the outside, protruding more than the other parts. According to the above configuration, the sheet 25 is stretched along the surface of the vibration-absorbing member 21. This makes it easier for the sheet 25 and the vibration-absorbing member 21 to adhere closely together, thus suppressing the formation of gaps between the sheet 25 and the vibration-absorbing member 21. Therefore, it is possible to suppress the increase in the impact sound on the impacted surface 20a due to these gaps.

[0094] (1-11) The cover 36 is flexible. The cover 36 has an opening 36a that exposes the surface to be struck 20a and a pressing portion 37 that presses against the outer periphery of the part to be struck 20.

[0095] With the above configuration, the outer periphery of the impacted part 20 is held down by the retaining part 37, thereby preventing the impacted part 20 from falling out of the case 30 through the opening 36a of the cover 36. Furthermore, since the cover 36 is flexible, even when the cover 36 is attached to the case body 31, the impacted part 20 can be attached to and detached from the case 30 through the opening 36a of the cover 36 by deforming the cover 36 and the impacted part 20. Therefore, the impacted part 20 can be easily replaced.

[0096] [Second Embodiment] The following describes a second embodiment in which an electronic percussion instrument pad is used as a snare drum pad.

[0097] In the second embodiment, the same reference numerals are used for components identical to those in the first embodiment, and for components corresponding to those in the first embodiment, the reference numeral "1**" is used, which is obtained by adding "100" to the reference numeral "**" of the first embodiment, thereby omitting redundant explanations.

[0098] (Snare drum pad configuration 13) As shown in Figure 6, the snare drum pad 13 comprises a striking surface 20, a case 130, a diaphragm 40, a vibration sensor 41, a first elastic member 45, and a second elastic member 47.

[0099] The case 130 comprises a case body 31 and a cover 136 attached to the case body 31. The cover 136 has a retaining portion 137 and a cover-side peripheral wall 138, as well as a flange portion 139 extending outward from the cover-side peripheral wall 138. The flange portion 139 is provided around the entire circumference of the cover 136.

[0100] An annular projection 139a is provided on the outer periphery of the surface of the flange portion 139, surrounding the opening 136a formed by the retaining portion 137. The top surface of the projection 139a is flat. The central part of the impacted portion 20 protrudes beyond the opening 136a, but does not protrude beyond the projection 139a. In other words, the central part of the impacted portion 20 is located between the pressing portion 137 and the projection 139a in the direction of the central part's protrusion.

[0101] <Effects of this embodiment> According to the snare drum pad 13 of this embodiment, in addition to the effects (1-1) to (1-11) of the first embodiment, the following additional effects can be achieved.

[0102] (2-1) The surface of the cover 136 is provided with an annular projection 139a surrounding the opening 136a. With the above configuration, the performer can play a rimshot that simulates striking the striking surface 20a and the projection 139a simultaneously.

[0103] [Third Embodiment] The following describes a third embodiment in which an electronic percussion pad is used as a bass drum pad.

[0104] In the third embodiment, the same reference numerals are used for components identical to those in the first embodiment, and for components corresponding to those in the first embodiment, the reference numeral "2**" is used, which is the reference numeral "**" of the first embodiment plus "200", thereby omitting redundant explanations.

[0105] (12 bass drum pad configuration) As shown in Figure 7, the bass drum pad 12 comprises a striking surface 220, a case 230, a diaphragm 40, a vibration sensor 41, double-sided tape 48, and an elastic member 245.

[0106] (Configuration of the part that is hit 220) As shown in Figure 8, the impacted portion 220 includes a vibration absorbing member 221, a sheet 25 covering the surface of the vibration absorbing member 221, a regulating member 27 covering the outer periphery of the surface of the sheet 25, and a cushioning member 26 covering the surface of the regulating member 27.

[0107] The vibration-absorbing member 221 is a soft sponge. The vibration-absorbing member 221 is disc-shaped. In a bass drum pad 12 where the striking surface 220a is strongly struck by the beater 17a, the vibration-absorbing member 221, being a soft sponge, helps to reduce the impact noise.

[0108] The sheet 25 is circular in shape and has a diameter approximately the same as that of the vibration-absorbing member 221. The outer periphery of the sheet 25 is bonded to the outer periphery of the surface of the vibration-absorbing member 221 with an adhesive (not shown).

[0109] The regulating member 27 has lower flexibility than the vibration absorbing member 221. The regulating member 27 is formed of, for example, a soft resin material. The regulating member 27 is annular in shape. The diameter of the regulating member 27 is greater than the diameter of the vibration absorbing member 221. The thickness of the regulating member 27 is less than the thickness of the vibration absorbing member 221. The regulating member 27 is fixed to the outer periphery of the impacted surface 220a. More specifically, the regulating member 27 is bonded to the outer periphery of the surface of the sheet 25 by an adhesive (not shown).

[0110] As shown in Figure 9, the outer periphery of the regulating member 27 protrudes axially more than the rest of the member over its entire circumference and covers the outer periphery of the vibration absorbing member 221. The cushioning member 26 is bonded to the inner circumference of the surface of the regulating member 27 by an adhesive (not shown). In other words, the vibration absorbing member 221, the sheet 25, the regulating member 27, and the cushioning member 26 are integrated into one unit.

[0111] (Configuration of Case 230) The case 230 comprises a case body 231 and a cover 236 attached to the case body 231. The bottom wall 232 of the case body 231 has a flat surface 232a with a receiving recess 234 and a tapered surface 232b provided on the outer periphery of the flat surface 232a. The tapered surface 232b connects the flat surface 232a to the case side periphery wall 235. The vibration absorbing member 221 is positioned relative to the case body 231 by elastically deforming along the tapered surface 232b.

[0112] A gap G is provided around the entire circumference of the vibration absorbing member 221 between its outer circumferential surface and the inner circumferential surface of the case-side circumferential wall 235. The outer circumferential portion of the regulating member 27, which covers the outer circumferential surface of the vibration absorbing member 221, is positioned in the gap G. In a bass drum pad 12, where the striking surface 220a is strongly struck by the beater 17a, the amount of deformation of the striking portion 220 tends to be large. The gap G functions as a space that allows the regulating member 27 to move toward the bottom wall 232 when the striking portion 220 deforms due to the striking of the striking surface 220a.

[0113] The pressing portion 237 presses against the outer circumference of the impacted portion 220 around its entire circumference. Therefore, the regulating member 27 is held down by the pressing portion 237 via the cushioning member 26. The striking portion 220 is housed in the case 230 in a state where it is aligned with the flat portion 232a of the bottom wall 232, and its outer circumference is pressed down all around by the pressing portion 237. The striking surface 220a of the striking portion 220 when housed in the case 230 is flat.

[0114] (Configuration of the diaphragm 240, vibration sensor 41, and elastic member 245) As shown in Figure 7, the diaphragm 240 is a disc-shaped plate with a certain thickness. The diaphragm 240 is made of, for example, a metal material.

[0115] The diaphragm 240 and the detection unit 42 of the vibration sensor 41 are bonded to each other via double-sided tape 48. The elastic member 245 has the same configuration as the first elastic member 45 of the first embodiment. The elastic member 245 is housed in the housing recess 234. The elastic member 245 is bonded to the bottom surface of the housing recess 234 and the detection unit 42 by an adhesive (not shown). As shown in Figure 9, the elastic member 245 presses the detection unit 42 and the diaphragm 240 toward the back surface 220b of the vibration absorbing member 221. As a result, the vibration absorbing member 221 is compressed by the diaphragm 240.

[0116] <Operation of this embodiment> In a bass drum pad 12, where the striking surface 220a is struck forcefully, if, for example, an elastic body exists between the diaphragm 240 and the detection unit 42, the elastic body may be compressed by the impact on the striking surface 220a, potentially causing the diaphragm 240 and the detection unit 42 to come into contact. In this case, the vibration sensor 41 may detect vibrations associated with both the impact on the striking surface 220a and the contact with the diaphragm 240. In other words, the bass drum pad 12 may produce two sounds for a single strike.

[0117] In this regard, according to the bass drum pad 12 of this embodiment, since the diaphragm 240 and the detection unit 42 are bonded together, it is possible to suppress the detection of vibrations associated with contact of the diaphragm 240 by the vibration sensor 41.

[0118] <Effects of this embodiment> According to the bass drum pad 12 of this embodiment, in addition to the effects (1-1) to (1-4), (1-7) to (1-9), and (1-11) of the first embodiment, the following additional effects can be achieved.

[0119] (3-1) The diaphragm 240 and the detection unit 42 are bonded together. With the above configuration, the above-described effect is achieved, which suppresses the bass drum pad 12 from producing two sounds for a single strike.

[0120] (3-2) The part that is struck 220 is equipped with a restricting member 27 that has lower flexibility than the vibration absorbing member 221. According to the above configuration, the restricting member 27 fixed to the outer periphery of the impacted surface 220a has lower flexibility than the vibration absorbing member 221. Therefore, when the impacted surface 220a is struck, the deformation of the outer periphery of the vibration absorbing member 221 is restricted by the restricting member 27. This prevents the impacted part 220 from falling out of the case 230 through the opening 236a of the cover 236.

[0121] Furthermore, with the above configuration, both the vibration absorbing member 221 and the restricting member 27 are flexible. Therefore, by deforming the restricting member 27 together with the vibration absorbing member 221, the impacted portion 220 can be attached to and detached from the case 230 through the opening 236a of the cover 236.

[0122] [Fourth Embodiment] The following describes a fourth embodiment in which the electronic cymbal pad is incorporated as a cymbal pad in an electronic drum set.

[0123] In the fourth embodiment, the same reference numerals are used for components identical to those in the first embodiment, and for components corresponding to those in the first embodiment, the reference numeral "3**" is used, which is obtained by adding "300" to the reference numeral "**" of the first embodiment, thereby omitting redundant explanations.

[0124] The hi-hat cymbal pad 15a, the first cymbal pad 15b, and the second cymbal pad 15c shown in Figure 1 have the same configuration. Hereafter, the hi-hat cymbal pad 15a, the first cymbal pad 15b, and the second cymbal pad 15c will be collectively referred to as "cymbal pad 15".

[0125] (Overall configuration of Cymbal Pad 15) As shown in Figure 10, the cymbal pad 15 comprises a striking surface 320, a case 330, a diaphragm 40, a vibration sensor 41, a first elastic member 45, and a second elastic member 47.

[0126] The striking surface 320 is rectangular in shape, having a long side and a short side, when viewed from above. The cymbal pad 15 is positioned so as to face the performer in the direction of the short side of the striking surface 320. Hereafter, the direction in which the longer side of the striking surface 320 extends will be simply referred to as the "long side direction," and the direction in which the shorter side extends will be simply referred to as the "short side direction." Furthermore, using the cymbal pad 15 as a reference, the direction away from the performer in the short side direction will be described as the "front," and the direction approaching the performer in the short side direction will be described as the "rear."

[0127] (Configuration of the part that is hit 320) As shown in Figure 11, the impacted portion 320 comprises a vibration absorbing member 321, a sheet 325 covering the surface of the vibration absorbing member 321, and a cushioning member 326 covering the outer periphery of the surface of the sheet 325.

[0128] The vibration-absorbing member 321 is composed of a first sponge 322, a second sponge 323, and a third sponge 324. The first sponge 322 and the third sponge 324 are soft sponges. The second sponge 323 is a hard sponge.

[0129] The second sponge 323 is a flat plate that is long in the direction of its longer side. The first sponge 322 is folded over from the top surface to the bottom surface of the second sponge 323 so as to cover the rear end surface of the second sponge 323, forming a U-shaped cross-section (see Figure 12). Figure 11 shows the first sponge 322 before it is folded over. The first sponge 322 is folded at two points indicated by dashed lines in Figure 11. The first sponge 322 is bonded to the top surface, rear end surface, and bottom surface of the second sponge 323 with adhesive (not shown). The portion of the first sponge 322 that covers the bottom surface of the second sponge 323 has a circular central hole 322a that penetrates the first sponge 322 in the thickness direction. The third sponge 324 is disc-shaped. The diameter of the third sponge 324 is approximately the same as the diameter of the central hole 322a.

[0130] As shown in Figure 12, the third sponge 324 is housed inside the central hole 322a and is bonded to the lower surface of the second sponge 323 with an adhesive (not shown). The sheet 325 is folded over from the top surface to the bottom surface of the first sponge 322 so as to cover the rear end surface of the first sponge 322. The sheet 325 covers the entire top surface and the entire rear end surface of the first sponge 322. The sheet 325 covers the area of ​​the bottom surface of the first sponge 322 rearward from the central hole 322a.

[0131] In the impacted portion 320, the back surface 320b opposite to the impacted surface 320a is composed of a first sponge 322, a third sponge 324, and a sheet 325. The outer periphery of sheet 325 is bonded to the first sponge 322 with an adhesive (not shown).

[0132] As shown in Figure 11, the cushioning member 326 is annular in shape and has the same external dimensions as the sheet 325. The cushioning member 326 is composed of multiple elongated felt pieces arranged in an annular shape. The cushioning member 326 is bonded to the outer periphery of the surface of the sheet 325 with an adhesive (not shown). In other words, the vibration absorbing member 321, the sheet 325, and the cushioning member 326 are integrated together. The cushioning member 326, like the sheet 325, is folded over from the top surface to the bottom surface of the first sponge 322.

[0133] As shown in Figure 12, the striking portion 320 has a bow portion 320c that forms the upper surface of the cymbal pad 15 and an edge portion 320d that forms the outer periphery continuous with the upper surface of the cymbal pad 15. The surfaces of the bow portion 320c and the edge portion 320d are made of sheet 325. The striking surface 320a is made up of the surfaces of the bow portion 320c and the edge portion 320d.

[0134] (Configuration of Case 330) As shown in Figure 10, the case 330 comprises a case body 331 and a cover 336 attached to the case body 331. The case body 331 is formed of, for example, a rigid resin material. The cover 336 is formed of, for example, a soft resin material. The cover 336 is flexible.

[0135] The case body 331 has a rectangular bottom wall 332 that is long in the direction of its longer side when viewed from above, and a case-side peripheral wall 335 that protrudes from the outer edge of the bottom wall 332. As shown in Figure 13, the bottom wall 332 supports the back surface 320b of the impacted portion 320. The bottom wall 332 has a curved portion 333 that curves in an arc towards the center in the direction of the long side. A receiving recess 334 is provided in the center of the curved portion 333.

[0136] As shown in Figure 14, the bottom wall 332 has a notch 332a that exposes the portion of the back surface 320b of the impacted portion 320 that constitutes the edge portion 320d. The notch 332a extends in the longitudinal direction at the rear edge of the bottom wall 332. The notch 332a is curved so that it is located further forward towards the center in the longitudinal direction. The portion of the edge portion 320d exposed from the notch 332a is covered by the sheet 325.

[0137] As shown in Figure 10, the case-side peripheral wall 335 has a pair of opposing portions 335a that face each other in the long-side direction, and a connecting portion 335b that connects the front ends of the pair of opposing portions 335a. The case-side peripheral wall 335 is U-shaped and opens to the rear in a plan view. Therefore, the rear ends of the pair of opposing portions 335a are connected only by the bottom wall 332.

[0138] The case body 331 has a case-side flange portion 331a that protrudes forward from the tip of the connecting portion 335b. The width of the case-side flange portion 331a in the long side direction decreases towards the front. The case-side flange portion 331a has a first insertion hole 331b into which a support rod 11b (see Figure 1) attached to the stand 11 is inserted.

[0139] The cover 336 has a pressing portion 337 that presses down on the part to be struck 320 and a cover-side flange portion 339a that covers the case-side flange portion 331a from above. The retaining portion 337 has a first portion 337a extending in the direction of the long side, a pair of second portions 337b extending rearward from both ends of the first portion 337a, and a pair of third portions 337c extending downward from the rear ends of the pair of second portions 337b.

[0140] As shown in Figure 12, the first portion 337a covers the protruding end surface of the connecting portion 335b and extends further inward than the connecting portion 335b toward the inner circumference of the case body 331. The first portion 337a presses the front end of the impacted portion 320 from the opposite side of the bottom wall 332. The first portion 337a also presses down on the cushioning member 326.

[0141] As shown in Figure 13, each second portion 337b covers the protruding end surface of the opposing portion 335a and extends further inward than the opposing portion 335a towards the inner circumference of the case body 331. The pair of second portions 337b press down on both ends of the long side of the impacted portion 320 from the side opposite to the bottom wall 332. The pair of second portions 337b hold down the cushioning member 326.

[0142] As shown in Figure 10, each third portion 337c covers the rear end surface of the opposing portion 335a and protrudes further inward from the case body 331 than the opposing portion 335a. The pair of third portions 337c press down on both ends of the rear end surface of the impacted portion 320 in the longitudinal direction from the opposite side of the connecting portion 335b. The pair of third portions 337c hold down the cushioning member 326.

[0143] From the above, it can be concluded that the pressing portion 337 presses down on the bow portion 320c from above and on the edge portion 320d from the rear. The pressing portion 337 forms an opening 336a that exposes the striking surface 320a. The bow portion 320c and the edge portion 320d are exposed from the case 330 through the opening 336a.

[0144] The width of the cover-side flange 339a in the long-side direction decreases towards the front. The cover-side flange 339a has a second insertion hole 339b into which the support rod 11b of the stand 11 (see Figure 1) is inserted. The cymbal pad 15 is supported by the support rod 11b inserted into the first insertion hole 331b and the second insertion hole 339b.

[0145] <Operation of this embodiment> With acoustic cymbals, playing sometimes involves striking the edge of the cymbal. For example, in the case of a cymbal pad 15, if the edge 320d is covered by the case 330, then when the edge 320d is struck, the case 330 will also be struck. In this case, a striking sound will be produced from the case 330.

[0146] In this regard, according to the cymbal pad 15 of this embodiment, the bow portion 320c and the edge portion 320d of the striking portion 320 are exposed from the case 330. As a result, the case 330 is not struck when the bow portion 320c and the edge portion 320d are struck, and the sound of the bow portion 320c and the edge portion 320d being struck is reduced by the vibration absorbing member 321.

[0147] <Effects of this embodiment> According to the cymbal pad 15 of this embodiment, in addition to the effects (1-1) to (1-11) of the first embodiment, the following additional effects can be achieved.

[0148] (4-1) The striking portion 320 has a bow portion 320c that forms the upper surface of the cymbal pad 15 and an edge portion 320d that forms the outer periphery continuous with the upper surface of the cymbal pad 15. The bow portion 320c and the edge portion 320d are exposed from the case 330.

[0149] According to the above configuration, the noise reduction of the cymbal pad 15 can be enhanced by achieving the effects described above. (4-2) The bottom wall 332 of the case 330 has a notch 332a that exposes the portion of the back surface 320b of the impacted part 320 that constitutes the edge portion 320d.

[0150] According to the above configuration, the portion of the back surface 320b of the striking part 320 that constitutes the edge portion 320d is exposed through the notch 332a of the case 330. Therefore, when a performer strikes the edge portion 320d with a stick and the edge portion 320d deforms, the notch 332a functions as a space for the stick to move away. Thus, the generation of contact noise between the stick and the case 330 can be suppressed.

[0151] (4-3) The retaining portion 337 presses down on the bow portion 320c from above and on the edge portion 320d from the rear. With the above configuration, the striking part 320 is pressed from above and behind by the pressing part 337. Therefore, it is possible to suppress changes in the relative position between the striking part 320 and the vibrating plate 40 due to the striking part 320 floating up inside the case 330. Consequently, a decrease in the detection accuracy of the vibration sensor 41 can be suppressed.

[0152] <Example of changes> Each embodiment can be implemented with the following modifications. Each embodiment and the following modifications can be combined with each other to the extent that they do not contradict each other technically.

[0153] The following examples of modifications relating to the first embodiment can also be applied to the second to fourth embodiments in the same manner. In the first embodiment, the first sponge 22 was a hard sponge, and the second sponge 23 and third sponge 24 were soft sponges, but these combinations can be changed as appropriate. For example, the first sponge 22, the second sponge 23, and the third sponge 24 may all be soft sponges.

[0154] In the first embodiment, the vibration absorbing member 21 may be made of an elastic material such as rubber instead of sponge. In the first embodiment, the cover 36 may be bonded to the case 30.

[0155] In the first embodiment, the case 30 does not necessarily have a cover 36. For example, the case 30 may be formed by integrally molding the case body 31 and the cover 36. In this case, it is preferable that the entire case 30 is flexible.

[0156] In the first embodiment, the part to be struck 20 does not have to be housed in the case 30 in a curved state. That is, the part to be struck 20 may be housed in the case 30 with the striking surface 20a in a flat state.

[0157] In the first embodiment, the entire sheet 25 may be bonded to the surface of the vibration absorbing member 21. In the first embodiment, the sheet 25 does not have to be adhered to the surface of the vibration absorbing member 21. The sheet 25 may be provided on the surface of the vibration absorbing member 21 with tension applied to its outer periphery by being sandwiched between the case body 31 and the cover 36.

[0158] In the first embodiment, the sheet 25 may be formed from a nonwoven or woven fabric made of natural fibers or chemical fibers. In the first embodiment, the part to be struck 20 does not necessarily have a sheet 25. In this case, the surface to be struck 20a is formed by the surface of the vibration absorbing member 21. That is, the vibration absorbing member 21 is exposed to the outside through the opening 36a of the cover 36.

[0159] In the first embodiment, the diaphragm 40 may be made of a metal material. In the first embodiment, the external dimensions of the second elastic member 47 may be greater than or equal to the external dimensions of the diaphragm 40.

[0160] In the first embodiment, the first elastic member 45 and the second elastic member 47 do not have to be made of sponge, as long as they are made of an elastic material. Examples of such elastic materials include elastomers such as rubber and spring materials.

[0161] In the first embodiment, the detection unit 42 may be in the shape of a polygonal plate. In the first embodiment, the external dimensions of the diaphragm 40 may be larger or smaller than the external dimensions of the detection unit 42.

[0162] In the first embodiment, the diaphragm 40 may be fixed to the back surface 20b of the striking portion 20 so as not to move relative to it. In the first embodiment, the part that is struck 20 does not have to be housed in the case 30. The part that is struck 20 may be supported, for example, by a flange that protrudes outward from the opening edge of a case having an opening. In this case, it is preferable that the diaphragm 40, the vibration sensor 41, the first elastic member 45, and the second elastic member 47 are housed in the case.

[0163] In the first embodiment, the cushioning member 26 is not limited to felt, but may be made of an elastic material such as rubber. In the first embodiment, the base 40a may be omitted from the diaphragm 40.

[0164] In the first embodiment, the vibration sensor 41 may be located inside the case 30 in an area on the outer periphery of the impacted portion 20, rather than in the central part. In the first embodiment, the tom pad 14 may include a plurality of vibration sensors 41 arranged at different positions inside the case 30.

[0165] In the first embodiment, the tom pad 14 may include a vibration sensor, in addition to the vibration sensor 41 located inside the case 30, a vibration sensor attached to the case 30 to detect vibrations of the case 30.

[0166] In the first embodiment, the vibration sensor 41 does not have to be a piezoelectric element, as long as it is capable of detecting vibrations of the diaphragm 40. In the third embodiment, the regulating member 27 may be divided in the circumferential direction.

[0167] In the third embodiment, the bass drum pad 12 does not need to be equipped with a regulating member 27. In this case, the cushioning member 26 may be bonded to the surface of the sheet 25. In the fourth embodiment, the bottom wall 332 does not need to have a notch 332a.

[0168] In the fourth embodiment, the first sponge 322 does not have to be folded over from the top surface to the bottom surface of the second sponge 323. The first sponge 322 may, for example, only cover the top surface of the second sponge 323.

[0169] In the fourth embodiment, the impacted portion 320 and the case 330 may be circular in shape in plan view. Even in this case, it is preferable that a part of the edge portion 320d is exposed from the case 330. [Explanation of symbols]

[0170] G... Gap 10…Electronic drum set 11… Stand 11a, 11b...Support rod 12... Bass drum pad 13…Snare drum pad 14... Tom pad 14a... Floor Tom Pad 14b...First tom pad 14c…2nd tom pad 15…Cymbal pad 15a... Hi-hat cymbal pad 15b...First cymbal pad 15c…2nd cymbal pad 16...Sound source device 17...Pedal device 17a... Beater 18…Hi-hat pedal 20,220,320,…Battered part 20a, 220a, 320a... Impact surface 20b, 220b, 320b…Back side 21,221,321…Vibration absorbing members 22,322...1st sponge 23,323... Second sponge 23a, 322a…center hole 24,324...3rd sponge 25,325… seats 26,326... buffer material 27… Regulatory member 30, 130, 230, 330... cases 30a... Mounting part 31,231,331… Case body 32,232,332…Bottom wall 33,333... curved section 34,234,334… Storage recesses 35,235,335…Case side peripheral wall 35a...Lock hole 36,136,236,336…cover 36a,136a,236a,336a...opening 37,137,237,337…Pressing part 37a...Latching claw 38,138… Cover side peripheral wall 40,240…diaphragm 40a...Base 40b...Expanded diameter part 41…Vibration sensor 42...Detection unit 43… Cable 44... Jack 45…First elastic member 46... The escape department 47…Second elastic member 48…Double-sided tape 50…Bracket 51...bottom 52…Fixed part 53...Holding part 54…Cylindrical section 55...Support part 60, 63... volts 61, 64… nuts 62...Color 65... Washer 139... Tsuba (sword guard) 139a...protrusion 232a...Plane part 232b...Tapered section 245...Elastic material 320c...Bow Club 320d…Edge area 331a... Case side flange 331b...First insertion hole 332a... Notch 335a…Correspondence Department 335b…Connecting section 337a…Part 1 337b…Part 2 337c…Part 3 339a…Kurta side crotch 339b…Second Insertion Hole

Claims

1. A part that has a surface to be struck, and the back surface opposite to the surface to be struck is made of a vibration-absorbing member that absorbs vibrations of the surface to be struck, A diaphragm that contacts the aforementioned back surface and has smaller external dimensions than the aforementioned back surface, A case that supports the part to be struck and houses the diaphragm, A vibration sensor is positioned on the opposite side of the diaphragm from the part that is struck, and detects the vibration of the diaphragm. The system comprises the vibration sensor and an elastic member that presses the vibrating plate toward the back surface, Pads for electronic percussion instruments.

2. The case houses the part to be struck with the surface to be struck exposed to the outside. The pad for electronic percussion instruments according to claim 1.

3. The diaphragm is in contact with the back surface in an unfixed state. The pad for electronic percussion instruments according to claim 1.

4. The vibration sensor has a flattened detection unit that detects the vibration of the diaphragm, The external dimensions of the diaphragm are greater than or equal to the external dimensions of the detection unit. The pad for electronic percussion instruments according to claim 1.

5. When the elastic member is designated as the first elastic member, The system includes a second elastic member positioned between the diaphragm and the vibration sensor. The pad for electronic percussion instruments according to claim 1.

6. The external dimensions of the second elastic member are smaller than the external dimensions of the diaphragm. The pad for electronic percussion instruments according to claim 5.

7. The diaphragm and the vibration sensor are bonded together. The pad for electronic percussion instruments according to claim 1.

8. The portion to be struck includes a sheet that constitutes the surface to be struck and covers the surface of the vibration absorbing member. The pad for electronic percussion instruments according to claim 1.

9. The aforementioned sheet is a mesh material. The pad for an electronic percussion instrument according to claim 8.

10. The vibration absorbing member and the sheet are integrated. The pad for an electronic percussion instrument according to claim 8.

11. The part to be struck is housed in the case such that the central part of the striking surface is curved and exposed to the outside, protruding more than the other parts. The pad for an electronic percussion instrument according to claim 8.

12. The aforementioned case is, A case body that houses the part to be struck, It comprises a flexible cover that is attached to the case body, The cover has an opening that exposes the surface to be struck and a pressing portion that presses against the outer periphery of the part to be struck. The pad for electronic percussion instruments according to claim 1.

13. The portion to be struck is equipped with a regulating member that is fixed to the outer circumference of the surface to be struck and is held down by the pressing portion. The regulating member has lower flexibility than the vibration absorbing member. The pad for electronic percussion instruments according to claim 12.

14. The surface of the cover is provided with an annular projection surrounding the opening. The pad for electronic percussion instruments according to claim 12.

15. It is an electronic cymbal pad, A part that has a surface to be struck, and the back surface opposite to the surface to be struck is made of a vibration-absorbing member that absorbs vibrations of the surface to be struck, A case for housing the part to be struck with the surface to be struck exposed to the outside, The system includes a vibration sensor that detects vibrations of the part that is struck, The striking portion has a bow portion that constitutes the upper surface of the electronic cymbal pad and an edge portion that constitutes the outer periphery continuous with the upper surface of the electronic cymbal pad. The bow portion and the edge portion are exposed from the case. Electronic cymbal pad.

16. The case has a bottom wall that supports the back surface of the part to be struck that is opposite to the surface to be struck, The bottom wall has a notch that exposes the portion of the back surface that constitutes the edge portion. The electronic cymbal pad according to claim 15.

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