JP2006201334A - Electronic percussion instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic percussion instrument capable of simulating sense of acoustic playing on a high hat using a single cymbal. <P>SOLUTION: A cymbal 7 comprises a single cymbal, so the number of components can be made less than that when two cymbals are used like before. Further, provided is a pedestal portion 10 where a peripheral portion that a shaft 2 of a 2nd frame 18 constituting the cymbal 7 penetrates is sit, so even when the cymbal 7 is composed of one cymbal, a feeling of acoustic playing on a high-hat cymbal can be simulated. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electronic percussion instrument that can simulate the performance of an acoustic hi-hat cymbal with one cymbal.

  Conventionally, as disclosed in the following Patent Document 1, an electronic hi-hat cymbal has been proposed in which the top cymbal moves up and down according to the amount of pedal depression, and can simulate a performance feeling similar to an acoustic hi-hat cymbal. Yes.

In addition to the electronic hi-hat cymbal disclosed in Patent Document 1, other electronic hi-hat cymbals of the same type had two cymbals to simulate an acoustic hi-hat cymbal composed of two cymbals. .
JP 2003-195857 A

  However, in the electronic hi-hat cymbal, we have found a new idea that deviates from the conventional fixed idea that it is not always necessary to compose two cymbals without impairing the performance of the acoustic hi-hat cymbal.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide an electronic percussion instrument that can simulate the performance of an acoustic hi-hat cymbal with one cymbal.

  In order to achieve this object, an electronic percussion instrument according to claim 1 detects a striking surface of an elastic body that moves up and down in conjunction with a shaft extending in a substantially vertical direction and a vibration generated by hitting the striking surface. A detection unit, and a second detection unit that detects the displacement of the vertical movement of the striking surface, and outputs a signal based on the detection result of the first and second detection units to the sound source device, A first frame that supports the striking surface; and a second frame that is connected to the first frame and forms a bottom surface opposite to the striking surface, and passes through the first and second frames. One cymbal that is connected to the shaft with the striking face up and moves up and down in conjunction with the shaft, and is fixed in a state where the shaft is loosely moved below the cymbal, and the cymbal is interlocked with the shaft. And move down It said shaft of said second frame and a seat portion for seating the peripheral portion that penetrates.

  The electronic percussion instrument according to claim 2 is the electronic percussion instrument according to claim 1, wherein the electronic percussion instrument is formed in a substantially mountain shape in cross section through the shaft, and swings the first frame with respect to the shaft at the top. A support portion that supports the support portion, and the seat portion that is seated on the pedestal portion of the second frame is curved toward the pedestal portion side in a cross-sectional view larger than a radius of curvature centering on a support position of the support portion. The pedestal portion is recessed in the bending direction of the seating portion so as to approximately approximate the outer shape of the seating portion in the sectional view.

  The electronic percussion instrument according to claim 3 is the electronic percussion instrument according to claim 1 or 2, wherein the electronic percussion instrument is disposed below the cymbal through the shaft and interlocks with the cymbal when the cymbal moves downward. The second detection unit electrically detects the amount of movement of the movement unit.

  The electronic percussion instrument according to claim 4 is an electronic percussion instrument according to claim 2 or 3, wherein when the seating portion is seated on the pedestal portion, the second detection portion is adjusted so as to detect a predetermined value. Department.

  The electronic percussion instrument according to claim 5, further comprising an abutting portion that freely moves up and down in conjunction with the cymbal through the shaft and abuts against the moving portion. The adjusting portion is configured such that its abutting portion can be moved up and down along the shaft relative to the cymbal and the moving portion.

  The electronic percussion instrument according to claim 6 is the electronic percussion instrument according to claim 5, wherein the support part is engaged with a lower part of the support part in a state of passing through the shaft, and the support part is prevented from rotating around the shaft. A rotation suppressing part, an urging part for urging the support part upward with respect to the rotation suppressing part, and standing up from the rotation suppressing part and being loosely penetrated by the support part and the cymbal, A cylindrical portion that forms a path for allowing the shaft to pass therethrough, and a fastening portion that is screwed in a state where the support portion and the cymbal are sandwiched on the opposite side of the cylindrical portion from the rotation suppressing portion. The contact portion is constituted by the rotation suppressing portion.

  The electronic percussion instrument according to claim 7 is the electronic percussion instrument according to claim 4, wherein the adjustment portion is capable of moving the pedestal portion up and down along the shaft relative to the cymbal and the moving portion. It is configured.

  The electronic percussion instrument according to claim 8 is the electronic percussion instrument according to any one of claims 1 to 7, wherein the second frame is formed in the first frame so as to form an internal space with the first frame. The first detection unit is connected to the inner surface of the second frame.

  According to the electronic percussion instrument of the first aspect, since the single cymbal is configured, the number of parts can be reduced and the manufacturing cost can be reduced as compared with the conventional configuration of two cymbals. There is an effect that can be done. In addition, since it has a pedestal that seats the peripheral part through which the shaft penetrates among the second frame that constitutes the cymbal, even if it consists of a single cymbal, it feels like playing an acoustic hi-hat cymbal. There is an effect that it can be simulated.

  According to the electronic percussion instrument according to claim 2, in addition to the effect of the electronic percussion instrument according to claim 1, the seat includes a support portion formed in a substantially mountain shape in cross section and is seated on the pedestal portion of the second frame. The portion is configured to bend toward the pedestal portion larger than the radius of curvature around the support position of the support portion in the cross-sectional view, and the pedestal portion is approximately approximate to the outer shape of the seating portion in the cross-sectional view. In particular, when the cymbal is hit in the closed state or when the cymbal is in the closed state while it is swinging, it will swing left and right. It is effective to be able to more faithfully simulate the performance feeling of an acoustic hi-hat cymbal.

  According to the electronic percussion instrument of the third aspect, in addition to the effect achieved by the electronic percussion instrument according to the first or second aspect, the second detection unit moves downward in conjunction with the cymbal when the cymbal moves downward. Since the amount of movement of the moving part to be detected is electrically detected, the displacement of the vertical movement of the hitting surface can be detected through the amount of movement of the moving part.

  According to the electronic percussion instrument of the fourth aspect, in addition to the effect of the electronic percussion instrument according to the second or third aspect, the second detection unit detects a predetermined value when the seating part is seated on the pedestal part. Since the adjusting section for adjusting is provided, there is an effect that the value detected by the second detecting section when the seating section is seated on the pedestal section can be adjusted in each electronic percussion instrument.

  According to a fifth aspect of the present invention, in addition to the effect achieved by the electronic percussion instrument according to the fourth aspect, the adjusting portion can move the contact portion up and down along the shaft relative to the cymbal and the moving portion. Since it is configured, the value detected by the second detection unit when the seating part is seated on the pedestal part by a simple operation of adjusting the height of the abutting part with respect to the cymbal and the moving part is determined by each electronic There is an effect that the percussion instrument can be adjusted individually.

  The electronic percussion instrument according to claim 6 is connected to the other end side of the cylindrical part when the fastening part screwed to the cylindrical part is moved to the cymbal side in addition to the effect of the electronic percussion instrument according to claim 5. The rotation suppression portion being pushed up is pushed up against the biasing portion. That is, since the cymbal and the support part penetrate the cylindrical part and the moving part is arranged separately from the cylindrical part, the rotation suppressing part is relative to the cymbal, the supporting part and the moving part. Can be moved upward. On the other hand, when the fastening portion is moved to the side opposite to the cymbal, the rotation suppressing portion is pushed downward by the urging portion. That is, as described above, the rotation suppressing unit can be moved downward relative to the cymbal, the support unit, and the moving unit. As described above, there is an effect that the contact portion can be configured to move up and down along the shaft relative to the cymbal and the moving portion by a simple operation of adjusting the fastening portion.

  The electronic percussion instrument according to claim 7 is configured such that, in addition to the effect achieved by the electronic percussion instrument according to claim 4, the adjustment unit is configured to move the pedestal part up and down along the shaft relative to the cymbal and the moving part. Therefore, the value detected by the second detection unit when the seating part is seated on the pedestal part by the simple operation of adjusting the height of the pedestal part with respect to the cymbal and the moving part can be obtained for each electronic percussion instrument. There is an effect that it can be adjusted individually.

  The electronic percussion instrument according to claim 8 has the effect of the electronic percussion instrument according to any one of claims 1 to 7, and the first detection unit is disposed on the inner surface of the second frame. Compared with the case where it is arranged on the inner surface of the supporting first frame, no matter which part of the striking surface is hit, the sensitivity based on the hit part can be made substantially uniform.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an external perspective view of an electronic hi-hat cymbal 1 which is an electronic percussion instrument of the present invention. In FIG. 1, the cymbal 7 is hit and the cymbal 7 is tilted with respect to the shaft 2. The electronic hi-hat cymbal 1 can simulate the performance feeling of an acoustic hi-hat cymbal composed of two cymbals by one cymbal 7.

  The electronic hi-hat cymbal 1 mainly includes a stand device 3 including a rod-like shaft 2 that moves up and down, a cylindrical case 4 that is fixed to the stand device 3 with the shaft 2 penetrating, and a case 4 A disc-shaped cymbal 7 that is connected to the shaft 2 at the upper side and can swing with respect to the shaft 2 is provided.

  The stand device 3 is a device for mounting the case 4 and the cymbal 7, and includes a shaft 2, a hollow pipe 8 that penetrates the shaft 2, and a base 9 that is attached to one end of the hollow pipe 8 and supports the case 4. ing. The stand device 3 has a structure (not shown) in addition to the stepped pedal disposed on the other end side of the hollow pipe 8 to move the shaft 2 up and down, and a leg portion that supports the hollow pipe 8 in an upright state. And.

  The case 4 forms a pedestal 10 (see FIG. 2) on which the cymbal 7 is seated, and houses therein a displacement sensor 11 (see FIG. 2 and the like) that detects displacement in the height direction of the cymbal 7. is there. Details of the pedestal 10 and the displacement sensor 11 will be described later.

  The cymbal 7 forms a striking surface 12 on which the performer strikes. A mark 14 is provided on the periphery of the cymbal 7, and the cymbal 7 is attached to the stand device 3 so that the mark 14 is located in front of the performer.

  The hitting surface 12 is formed of an elastic body such as rubber or elastomer, for example. Also, on the surface, concavities and convexities having, for example, a groove width of 2 mm, a pitch of 4 mm (groove and groove width), and a depth of 0.1 mm are formed concentrically, and a rubber primer (reactive surface modification) Treatment agent) is applied.

  As a result, the feel when hitting the striking surface 12 can be brought close to the feel when striking an acoustic hi-hat cymbal, and wear of the striking surface 12 due to long-time striking can be reduced.

  Further, the cymbal 7 is configured to move up and down in conjunction with the shaft 2 according to the amount of pedal depression (not shown), and to swing around the shaft 2 by hitting the striking surface 12. It should be noted that the pedal is released and the cymbal 7 is completely separated from the pedestal portion 10 in the open state (see FIG. 2), and the pedal is depressed and the cymbal 7 is seated on the pedestal portion 10 in the closed state (see FIG. 3). That's it.

  Next, the configuration of the electronic hi-hat cymbal 1 will be described more specifically with reference to FIGS. 2 to 4. 2 is a cross-sectional view of the electronic hi-hat cymbal 1 in the open state, and FIG. 3 is a cross-sectional view of the electronic hi-hat cymbal 1 in the closed state. 2 and 3 are sectional views taken along a sectional line connecting the center of the cymbal 7 and the mark 14. 4A is a bottom view of the cymbal 7, and FIG. 4B is an enlarged cross-sectional view taken along the line AA shown in FIG. 4A. In FIG. 4A, the shaft 2 is not shown.

  The cymbal 7 mainly includes a cover 16 that forms the striking surface 12 on the upper surface, a first frame 17 that supports the cover 16, and a first frame that forms an internal space between the first frame 17. 17 is connected to the second frame 18.

  The cover 16 includes an opening in which the head portion 19 is exposed at a substantially central portion, a cup portion 16a that rises in a dome shape around the opening, an edge portion 16c that forms an outer edge portion, and a cup portion 16a to an edge portion 16c. And a bow portion 16b that gently curves downward.

  The first frame 17 is formed of a hard plastic material such as acrylonitrile-butadiene-styrene (ABS) resin or polycarbonate resin to support the cover 16.

  The first frame 17 includes an opening into which the head portion 19 is fitted at the center, a shoulder portion 17a that supports the cup portion 16a around the opening, and a bow portion 16b that continuously extends from the shoulder portion 17a toward the outer edge. The arm part 17b which supports is provided.

  Further, on the mark 14 side (right side of the drawing), an outer peripheral portion 17d that supports the edge portion 16c is provided at a position one step below the tip of the arm portion 17b, and this outer peripheral portion 17d is formed by a half circumference centering on the mark 14. ing.

  Thus, by forming the outer peripheral portion 17d at a position lower than the arm portion 17b, the thickness of the edge portion 16c can be made thicker than that of the bow portion 16b, so that when the edge portion 16c is hit Vibration can be suppressed. Therefore, the vibration when the cymbal 7 is hit can be made uniform. In addition, the edge portion 16c is easily deformed, and it can be approximated to the touch when the edge portion of the acoustic hi-hat cymbal is hit.

  Incidentally, the outer peripheral portion 17d is not formed in the half peripheral portion (the left side in the drawing) opposite to the mark 14, and the tip portion of the arm portion 17b is covered with the edge portion 16c.

  A head portion 19 fitted into an opening at a substantially central portion of the first frame 17 is formed in a substantially cylindrical shape, and has a concave portion 19a that is recessed upward from the central portion of the bottom surface, and a flange that protrudes outward from the bottom side surface. A portion 19b and a through hole 19c penetrating a cylindrical portion 27 to be described later are provided at the center thereof, and the flange portion 19b is connected to the shoulder portion 17a by a screw 21.

  The ceiling surface of the recess 19a is formed to be inclined to the left and right with the through hole 19c as the center in a cross-sectional view, and a support portion 28 having a mountain shape in cross section, which will be described later, is in contact with the ceiling surface of the recess 19a. Is supported by the support portion 28 in a balance-like manner so as to be swingable in the left and right directions in the drawing.

  The second frame 18 is connected to the first frame 17 while forming an internal space between the first frame 17 and mainly curved downward gently from the outer edge toward the center. A bottom portion 18a, a first wall portion 18b standing from the bottom portion 18a toward the first frame 17 and forming a recess in a substantially central portion, and from an end portion of the first wall portion 18b toward the central portion. The seating portion 18c is curved, and the second wall portion 18d is erected on the first frame side from the end of the seating portion 18c so as to form a recess at the center.

  As shown in FIG. 4 (a), the second frame 18 is connected to the first frame 17 by screws 20a at six places on the seating portion 18c and at eight places on the bottom portion 18a. The first frame 17 is connected through the cover 16.

  Specifically, the first frame 17 and the second frame 18 are firmly connected so as to be in direct contact with each other at six positions on the seating portion 18c (not shown), and at eight positions on the bottom portion 18a, FIG. As shown in (b), they are connected via a rubber nut 20b that is deformed into an anchor shape by screwing a screw 20a.

  As described above, the six portions of the seating portion 18c are firmly connected so that the first frame 17 and the second frame 18 are in direct contact, whereas the eight portions of the bottom portion 18a are rubber. Since the first frame 17 and the second frame 18 are connected via the nut 20b, the second frame 18 is connected to the first frame 17 in a floating state, and when the cover 16 is hit. The entire second frame 18 vibrates. Therefore, the sensitivity of the vibration sensor 15 disposed on the inner surface of the second frame 18 to be described later can be made substantially uniform no matter which part of the cover 16 is hit.

  In addition, when connecting the first frame 17 and the second frame 18, it is conceivable that the outer periphery of the first frame 17 and the outer periphery of the second frame 18 are directly connected by screws, In such a case, if the edge portion 16c of the cover 16 is hit, the screw may be loosened by the vibration. Therefore, as in this embodiment, by connecting the first frame 17 and the second frame 18 via the rubber nut 20b, the vibration is absorbed by the rubber nut 20b, so that the screw 20a is loosened. Can be prevented.

  In an internal space surrounded by the second frame 18 and the first frame 17, a vibration sensor 15 that mainly detects vibration generated when the hitting surface 12 is hit, and the vibration sensor 15 and wiring And the vibration detected by the vibration sensor 15 is output as an electrical signal to the jack 24 via the wiring.

  The vibration sensor 15 is disposed on the inner surface of the bottom 18 a of the second frame 18. That is, the vibration sensor 15 is disposed away from the first frame 17. Therefore, compared with the case where the vibration sensor 15 is disposed on the inner surface of the first frame 17, no matter where the striking surface 12 is struck, the vibration can be made uniform and transmitted to the vibration sensor 15. The detection sensitivity can be made uniform.

  Moreover, the vibration sensor 15 is arrange | positioned in the approximate center part among the inner surfaces of the bottom part 18a. In other words, the vibration sensor 15 is disposed at an appropriate distance from the shaft 2. Therefore, the sensitivity to the vibration transmitted from the shaft 2 becomes insensitive, and the detection sensitivity of vibration due to the hitting of the hitting surface 12 that is originally required can be improved.

  Next, FIG. 5 is added to FIGS. 2 to 4 and the support mechanism 25 for supporting the cymbal 7 will be described. FIG. 5 is an exploded perspective view of the support mechanism 25 that supports the cymbal 7. In FIG. 5, illustration of the stand device 3 including the shaft 2 is omitted to facilitate understanding of the drawing.

  As shown in FIG. 5, the support mechanism 25 mainly includes a rotation suppression portion 26, a cylindrical portion 27 erected from the rotation suppression portion 26, a support portion 28 that passes through the cylindrical portion 27, and the cylindrical portion 27. A rubber washer 29 that penetrates the support 7 and sandwiches the cymbal 7; an adjustment nut 30 that is screwed onto the cylindrical portion 27 from above the washer 29; and the cylindrical portion 27 and the shaft 2 above the preparation nut 30 And a clutch 31 for integrally fixing them.

  The rotation suppression unit 26 is fitted with a lower portion of the support unit 28 to suppress the support unit 28 from rotating about the shaft 2 and abuts on an upper actuator 37a described later. The rotation suppressing part 26 is formed in a substantially hollow pipe shape, and is partitioned into a partition wall 26 a (see FIGS. 2 and 3) that partitions the inside up and down, and opens to the partition wall 26 a and is connected to one end side of the cylindrical part 27. The connection hole 26b (refer FIG.2 and FIG.3) is provided. In addition, the inner surface above the partition wall 26a is formed in a polygonal shape in plan view so as to be mated with a lower portion of the support portion 28.

  The cylindrical portion 27 is in the form of a hollow pipe that forms a path through which the shaft 2 is allowed to pass freely. One end of the cylindrical portion 27 is connected to the connecting hole 26b of the rotation suppressing portion 26, and the outer peripheral surface on the other end has a male screw. Is engraved.

  The support portion 28 is in contact with the concave portion 19 a of the head portion 19 described above and supports the cymbal 7 so as to be swingable with respect to the shaft 2. The support portion 28 is inclined at a steeper angle than the ceiling surface of the recess portion 19a and is in contact with the ceiling surface of the recess portion 19a, and a fitting portion 28b connected to the lower portion of the peak portion 28a. A concave portion 28c (see FIGS. 2 and 3) that is recessed upward from the bottom surface of the fitting portion 28b and a through passage 28d that penetrates the cylindrical portion 27 are provided.

  In the state where the coil spring 32 is loosely passed through the cylindrical portion 27, the support portion 28 loosely moves the cylindrical portion 27 in the through passage 28 of the support portion 28 so that one end side of the coil spring 32 abuts on the concave portion 28 c of the support portion 28. Mounted through. Further, the outer surface of the fitting portion 28 b is formed in a polygonal shape in plan view so as to be mated with the inner surface formed in a polygonal shape in plan view of the rotation suppressing portion 26, and the support portion 28 rotates around the cylindrical portion 27. Is suppressed. Further, when the top portion of the mountain portion 28a is brought into contact with the ceiling surface of the concave portion 19a, the cymbal 7 is supported by the support portion 28 so as to be swingable only in the left-right direction in FIGS.

  The adjustment nut 30 is screwed into a male screw engraved in the cylindrical portion 27 to adjust the relative height position of the rotation suppressing portion 26 with respect to the cymbal 7 or an actuator 37 described later. The operation of the adjusting nut 30 will be described later with reference to FIG.

  The clutch 31 includes a clutch bolt 31a, a hollow pipe-shaped first fixing portion 31b that penetrates the cylindrical portion 27, a thumbscrew 31c, and a hollow pipe-like shape that is connected to the upper side of the first fixing portion 31b and penetrates the shaft 2. And a second fixing portion 31d.

  When the clutch 31 is fastened with the clutch bolt 31a in a state where the cylindrical portion 27 is passed through the first fixed portion 31b and the shaft 2 is passed through the second fixed portion 31d, the first fixed portion 31b presses the cylindrical portion 27, The first fixing portion 31b is fixed to the cylindrical portion 27, and the second fixing portion 31d is fixed to the shaft 2 by tightening the thumbscrew 31c.

  With the support mechanism 25 described above, the cymbal 7 can be attached without being rotated around the shaft 2 and capable of swinging around the shaft 2.

  Next, the case 4 will be described with reference to FIGS. FIG. 6 is an external perspective view of the case 4. The case 4 includes a base 4a, a side wall 4b erected upward from the periphery of the base 4a, a through hole 4c (see FIG. 2) that penetrates the base 4a, and a base that surrounds the through hole 4c. An inner wall 4d (see FIG. 2) extending upward from 4a in a cylindrical shape and a ceiling wall 4e (see FIG. 2) for connecting the upper edge of the inner wall 4d and the inner surface of the side wall 4b are provided.

  Further, a displacement sensor 11 described later is included in the space surrounded by the inner wall 4d, and the detection result detected by the displacement sensor 11 is provided on the outer peripheral surface of the side wall 4b as an electric signal via a wiring (not shown). An output jack 35 (see FIG. 6) is arranged.

  Further, a pedestal portion 10 is disposed in a portion surrounded by the upper surface of the ceiling wall 4e and the side wall 4b extending upward from the ceiling wall 4e. The pedestal portion 10 is formed of an elastic body such as rubber, and has an inner wall 10a that forms a through-hole through which an actuator 37, which will be described later, penetrates at the center portion, and an outer wall 10b that extends above the upper edge portion of the side wall 4b of the case 4 And an inclined wall 10c inclined downward from the upper edge of the outer wall 10b toward the inner wall 10a.

  Next, FIG. 7 and FIG. 8 are added to FIG. 2 thru | or 4, and the displacement sensor 11 enclosed in the case 4 mentioned above is demonstrated. FIG. 7 is a perspective view showing the displacement sensor 11, and FIG. 8 is a view for explaining the configuration of the sheet sensor 40. 7A shows the state of the displacement sensor 11 when the cymbal 7 is in the closed state, and FIG. 7B shows the state of the displacement sensor 11 when the cymbal 7 is in the open state. Yes.

  The displacement sensor 11 mainly includes a hollow pipe-shaped sleeve 36 that is inserted into the through hole 4 c of the base 4 a and extends upward, a hollow pipe-shaped actuator 37 that passes through the sleeve 36, and the actuator 37. The bearing 38 is connected so as to be capable of rolling, the seat sensor cushion 39 with which the rolling surface of the bearing 38 abuts, and the seat sensor 40 bonded to the back of the seat sensor cushion 39.

  The sleeve 36 loosely penetrates the shaft 2 inside, and causes the actuator 37 to loosen around the outer periphery thereof, and extends from the base 4a to a position below the upper surface of the pedestal portion 10 described above. Yes.

  The actuator 37 includes a hollow pipe-like upper actuator 37a having a contact portion that comes into contact with one end of the rotation suppressing portion 26, and a hollow pipe-like lower actuator 37b that supports the upper actuator 37a from below.

  As shown in FIG. 2, the outer diameter of the upper portion of the lower actuator 37b is smaller than the inner diameter of the upper actuator 37a, and the upper portion of the lower actuator 37b is directed inward from the inner surface of the upper actuator 37a. The protrusion 41 is inserted into the upper actuator 37a up to the position of the protrusion 41, and the upper actuator 37a is supported by the lower actuator 37b at the protrusion 41.

  Therefore, the size of the contact area between the lower actuator 37b and the upper actuator 37a can be reduced. Therefore, even if the cymbal 7 rotates around the shaft 2 in a state where the rotation suppression unit 26 is in contact with the upper actuator 37a, the rotational force is transmitted to the upper actuator 37a via the rotation suppression unit 26. The rotational force is hardly transmitted to the lower actuator 37b, and the upper actuator 37a can absorb the rotational force.

  The lower portion of the lower actuator 37b has a larger diameter than the upper portion, and a flange 42 having an outer diameter substantially the same as that of the enlarged portion is provided at the end of the upper actuator 37a. Furthermore, the ceiling wall 4e of the case 4 is provided with a hole having a diameter smaller than that of the flange 42 and larger than that of the cylindrical portion of the upper actuator 37a, and the cylindrical portion of the upper actuator 37a passes through the hole. Thus, the actuator 37 is prevented from jumping out of the internal space surrounded by the inner wall 4d of the case 4.

  Thus, the upper actuator 37a is supported by the lower actuator 37b so as to be rotatable about the sleeve 36. Further, a coil spring 43 is disposed between the lower actuator 37b and the base 4b in a state where the sleeve 36 is allowed to pass through. Therefore, when the cymbal 7 moves downward and the rotation suppression unit 26 contacts the upper actuator 37a, the actuator 37 moves downward against the urging force of the coil spring 43, and the cymbal 7 moves. When it moves upward, it moves upward by the repulsive force of the coil spring 43.

  Further, one end of the coil spring 43 is engaged with a protrusion 44 (see FIG. 6) protruding from the upper surface of the base 4a so that the bearing 38 is pressed toward the seat sensor cushion 39, and the other end is on the lower side. It is locked to the actuator 37b and attached in a twisted state.

  The bearing 38 rolls on the seat sensor cushion 39 in conjunction with the vertical movement of the actuator 37. The bearing 38 is fixed to a support shaft 38a extending in a substantially horizontal direction from the outer surface of the lower actuator 37b so as to be freely rotatable.

  Thus, by attaching the bearing 38 to the lower actuator 37b, the bearing 38 is prevented from being separated from the seat sensor cushion 39 as compared with the case where the bearing 38 is attached to the upper actuator 37a that may rotate around the sleeve 36. can do. Further, by installing the above-described coil spring 43 in a twisted state so that the bearing 38 is pressed toward the seat sensor cushion 39, the bearing 38 can be prevented from being separated from the seat sensor cushion 39.

  The seat sensor cushion 39 constitutes a contact surface on which the bearing 38 rolls, and is disposed such that its wide surface extends along the moving direction of the actuator 37. The seat sensor cushion 39 is made of an elastic body such as a sponge, whereby the pressing force of the bearing 38 can be diffused to reliably cause a short circuit in the seat sensor 40 described later.

  The seat sensor 40 is disposed in close contact with the back surface of the seat sensor cushion 39, and detects the displacement of the cymbal 7 in the height direction by detecting the position of the bearing 38.

  The sheet sensor 40 is configured by laminating a base film 47 shown in FIG. 8 (a-1), a spacer film 48 shown in FIG. 8 (a-2), and a top film 49 shown in FIG. 8 (a-3). These films are all made of a resin thin film having insulating properties.

  On one surface of the base film 47, a conductive printing portion 47a having a predetermined pattern and two belt-like carbon printing portions 47b connecting the conductive printing portion 47a are formed on both sides of the substantially central portion. . The spacer film 48 is formed with a first opening 48a that opens in a substantially central portion, and a second opening 48b that opens in a band shape from the first opening 48a to the end of the film. On one surface of the top film 49, a conductive printing portion 49a having a predetermined pattern is formed in a substantially central portion.

  As shown in FIG. 8B, each of these films 48 includes a conductive printing part 49 a printed on the top film 49 and a carbon printing part 47 b of the base film 47, so that the first opening part of the spacer film 48 is formed. The spacer film 48 is sandwiched between one surface of the base film 47 and one surface of the top film 49 so as to face each other through the 48a, and the other surface of the top film 49 is the seat sensor cushion 39. It is attached so as to be in close contact with the back of the.

  As a result, when the seat sensor cushion 39 is pressed against the bearing 38, the conductive printing portion 49 a of the top film 49 is pressed against the carbon printing portion 47 b of the base film 47 through the first opening 48 a of the spacer film 48. The Then, the two carbon printing parts 47b are short-circuited by the conductive printing part 49a of the top film 49 at the pressed position.

  That is, when the actuator 37 is pushed down in conjunction with the cymbal 7 or the actuator is pushed up by the coil spring 43, the bearing 38 moves over the seat sensor cushion 39 in conjunction with the vertical movement of the actuator 37. Roll up and down. As the bearing 38 moves up and down, the resistance value of the seat sensor 40 changes, and the displacement in the height direction of the bearing 38 can be detected by the change in the resistance value. As a result, the height of the cymbal 7 can be detected. Directional displacement can be detected.

  In addition, by forming the second opening 48b in the spacer film 48, when the top film 49 is pressed toward the base film 47 by the bearing 38, the air present in the first opening 48a is removed from the second opening 48b. 48b can be extruded to the outside.

  Next, an adjustment method for adjusting the sheet sensor 40 to detect a predetermined resistance value in the closed state will be described with reference to FIG. FIG. 9 is an enlarged view of the vicinity of the support portion 28 in the closed state.

  Normally, the sheet sensor 40 is configured to detect a predetermined resistance value (hereinafter referred to as a predetermined value) in the closed state, and when detecting the predetermined value, an electric signal corresponding to the predetermined value is generated. Will be output.

  However, the predetermined value indicating that the product is in a closed state may vary from product to product due to variations in performance of components such as the coil spring 43 or electrical contact of the sheet sensor 40. Therefore, in such a case, the variation can be mechanically eliminated by performing the following operation.

  For example, as shown in FIG. 9A, when the adjustment nut 30 screwed into the cylindrical portion 27 is moved to the cymbal 7 side (downward), the rotation suppression connected to the other end side of the cylindrical portion 27. The portion 26 is pushed upward against the coil spring 32. That is, the cymbal 7 and the support portion 28 penetrate the cylindrical portion 27, and the actuator 37 is arranged separately from the cylindrical portion 27. Therefore, the rotation suppression portion 26 is replaced with the cymbal 7, the support portion 28, The actuator 37 can be moved upward relative to the actuator 37. Therefore, the pushing amount t1 of the actuator 37 in the closed state is reduced. Therefore, the closed state can be detected when the bearing 38 is pressed upward from the beginning.

  On the other hand, as shown in FIG. 9B, when the adjustment nut 30 is moved to the side opposite to the cymbal 7 (upward), the rotation suppressing portion 26 is pushed down by the coil spring 32. That is, as described above, the rotation suppression unit 26 can be moved downward relative to the cymbal 7, the support unit 28, and the actuator 37. Therefore, the pushing amount t2 of the actuator 37 in the closed state increases. Therefore, the closed state can be detected when the lower portion is pressed from the beginning by the bearing 38.

  In this way, by adjusting the adjustment nut 30, it is possible to adjust that the predetermined value indicating the closed state varies for each product. At this time, since the adjustment nut 30 is disposed above the cymbal 7, its operation is easy.

  Next, the operation of the cymbal 7 when the cymbal 7 is hit in the closed state or when the cymbal 7 is in the closed state while the cymbal 7 is swinging will be described with reference to FIG. FIG. 10 is a diagram schematically illustrating the relationship among the cymbal 7, the support portion 28, and the pedestal portion 10.

  As described above, the seating portion 18c of the cymbal 7 is formed to be curved downward from the end portion of the first wall portion 18b toward the center portion. More specifically, as shown in FIG. 10A, the seating portion 18c has a radius of curvature with the center M1 as the center of oscillation that swings left and right in the figure as the cymbal 7 is supported by the support portion 28. It is configured to bend downward with a radius of curvature A (center M2) larger than a.

  On the other hand, the inclined wall 10c of the pedestal portion 10 on which the seat portion 18c is seated is recessed in the bending direction of the seat portion 18c so as to approximate the outer shape of the seat portion 18c. Specifically, it is preferable that the seating portion 18c is configured to be inclined downward toward the center portion with a slope substantially the same as the tangential direction of the curvature radius A of the seating portion 18c. In particular, in the present embodiment, the seating portion 18c in the closed state. The seating portion 18c is inclined downwardly toward the central portion with substantially the same inclination as the tangential direction of the radius of curvature A of the seating portion 18c.

  When the edge portion 16c of the cymbal 7 in the closed state shown in FIG. 10A is hit, the cymbal 7 lifts the shaft 2 by the dimension b as shown in FIG. 10B. Here, in the closed state, since the pedal is depressed, it is very difficult to lift even the b dimension alone.

  Therefore, for example, when the curvature radius of the seating portion 18c is made substantially the same as the curvature radius a while the tilt angle of the tilted wall 10c is kept the same as in the present embodiment, the change in the height direction of the seating portion 18c is changed. Therefore, the seating portion 18c may not be separated from the inclined wall 10c, and the seating portion 18c may be fixed to the inclined wall 10c in an inclined state.

  On the other hand, when the angle of curvature of the inclined wall 10c is made larger or smaller than the angle of the present embodiment while the radius of curvature of the seating portion 18c is kept the same as that of the present embodiment, the state immediately becomes horizontal. There is a risk of being fixed in a slanted or inclined state.

  In that respect, by forming the shape of the seating portion 18c and the inclined portion 10c as in the present embodiment, when the cymbal 7 is hit in the closed state or the cymbal 7 is swinging, the closed state is achieved. In this case, even if the cymbals are made to move horizontally while swinging left and right, and a single cymbal is configured, it is possible to simulate a performance feeling that approximates that of an acoustic hi-hat cymbal.

  Next, referring to FIG. 11 and FIG. 12, the electronic hi-hat according to the second embodiment equipped with an adjustment mechanism for adjusting the sheet sensor 40 to detect a predetermined value in the closed state by a method different from that described above. The cymbal 100 will be described. FIG. 11 is an enlarged cross-sectional view of the case 4 mounted on the electronic hi-hat cymbal 100 of the second embodiment. FIG. 12 corresponds to FIG. 2 and is a cross-sectional view of the electronic hi-hat cymbal 100 of the second embodiment. In addition, about the structure which is common in 1st Example, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In the adjustment mechanism mounted on the electronic hi-hat cymbal 100 of the second embodiment, the seat sensor 40 detects a predetermined value in the closed state by moving the pedestal 10 up and down relative to the cymbal 7 and the actuator 37. It is something to adjust.

  Specifically, as shown in FIG. 11, the adjustment mechanism mounted on the electronic hi-hat cymbal 100 of the second embodiment mainly includes a pedestal receiver 50 that supports the pedestal portion 10, and a ceiling wall 4e of the case 4. A pedestal receiving fixing wall 4f that is connected and loosely penetrates the actuator 37 and extends upward in a cylindrical shape is provided.

  The pedestal receiver 50 includes a bottom wall 50a in which an opening to be screwed to the outer surface of the pedestal support fixing wall 4f is formed at the center, and a side wall 50b that stands upward from the periphery of the bottom wall 50a so as to surround the pedestal 10 And a flange 50c projecting outward from the upper edge of the side wall 50b. The side wall 50 b is configured to be lower than the maximum height of the pedestal portion 10, and is prevented from colliding with the cymbal 7.

  Therefore, the pedestal portion 10 supported by the pedestal support 50 can be moved up and down relatively with respect to the cymbal 7 and the actuator 37 using the screwing relationship with the pedestal support fixing wall 4f.

  The adjusting mechanism mounted on the electronic hi-hat cymbal 100 of the second embodiment further includes a fixing ring 51. The fixing ring 51 is erected upward from the bottom wall 51a in which an opening penetrating the pedestal receiving fixing wall 4f is formed at a substantially central portion and surrounding the side wall 50b of the pedestal receiving 50 from the periphery of the bottom wall 51a. The side wall 50 of the base 50 and the side wall 51b to be screwed are provided.

  As a result, the pedestal receiver 50 is moved up and down integrally with the fixing ring 51 using the screwing relationship with the pedestal receiving fixing wall 4f to set the pedestal receiver 50 at a desired position, and then screwed with the fixing ring 51. By using the relationship, the position of the pedestal receiver 50 is left as it is, and only the fixing ring 51 is moved so as to contact the ceiling wall 4e, so that the pedestal receiver 50 can be firmly fixed at a predetermined position. .

  According to such an adjustment mechanism, for example, when the pedestal support 50 at the position shown in FIG. 11A is adjusted and moved to the position shown in FIG. The distance from the upper surface of the base 10 changes from t3 to t4 (t3> t4). That is, the pushing amount of the actuator 37 in the closed state is reduced, and the closed state can be detected when the bearing 38 is pressed upward from the beginning.

  On the contrary, when the pedestal support 50 at the position shown in FIG. 11B is adjusted and moved to the position shown in FIG. 11A, the pushing amount of the actuator 37 in the closed state increases, and the bearing 38 The closed state can be detected when the lower part is pressed downward from the beginning. Therefore, by adjusting the position of the pedestal receiver 50, it is possible to adjust the variation of the predetermined value indicating the closed state for each product, as described above.

  Next, with reference to FIG. 12, a support mechanism when the above-described adjustment mechanism is mounted will be described. In the electronic hi-hat cymbal 1 of the first embodiment, the adjustment is performed so that the seat sensor 40 detects a predetermined value in the closed state by adjusting the adjustment screw 30, so that the support portion 28 and the rotation suppression portion 26 as a support mechanism. The case where these are configured by separate members has been described.

  On the other hand, when the seat sensor 40 is adjusted to detect a predetermined value in the closed state by adjusting the height of the pedestal portion 10 as in the electronic hi-hat cymbal 100 of the second embodiment described above, FIG. As shown in FIG. 3, the support portion 28 and the rotation suppressing portion 26 can be configured as a support portion 60 that is integrated.

  The support portion 60 has a crest 60a formed in a mountain shape in cross-section, a hollow body portion 60b extending continuously downward from the crest portion 60a, and a tube passing through a substantially central portion of the crest portion 60a. And a connection hole 60c to be screwed. A felt washer 61, a lock nut 62, and a clutch 31 are attached to the support 60 with the cymbal 7 interposed therebetween.

  That is, when the seat sensor 40 is adjusted to detect a predetermined value in the closed state by adjusting the height of the pedestal portion 10 as in the electronic hi-hat cymbal 100 of the second embodiment described above, Since the cymbal 7 can be supported by the configured support portion 60, the number of parts can be reduced.

1 is an external perspective view of an electronic hi-hat cymbal 1 that is an electronic percussion instrument of the present invention. It is sectional drawing of the electronic hi-hat cymbal 1 in an open state. It is sectional drawing of the electronic hi-hat cymbal 1 in a closed state. (A) is a bottom view of a cymbal, (b) is an expanded sectional view of the AA cross section line shown to Fig.4 (a). It is a disassembled perspective view of the support mechanism which supports a cymbal. It is an external appearance perspective view of a case. It is a perspective view which shows a displacement sensor. It is a figure for demonstrating the structure of a sheet sensor. It is an enlarged view of the support part vicinity in a closed state. It is a figure which shows typically the relationship between a cymbal, a support part, and a base part. It is an expanded sectional view of the case mounted in the electronic hi-hat cymbal of 2nd Example. It is sectional drawing of the electronic hi-hat cymbal of 2nd Example in an open state.

Explanation of symbols

1 Electronic hi-hat cymbal 2 Shaft 10 Pedestal part 11 Displacement sensor (second detection part)
15 Vibration sensor (first detection unit)
17 1st frame 18 2nd frame 18c Seating part 26 Rotation suppression part (contact part)
27 Cylindrical part 28 Support part 30 Adjustment nut (fastening part)
32 Coil spring (biasing part)
37 Actuator (moving part)

Claims (8)

A striking surface of an elastic body that moves up and down in conjunction with a shaft extending in a substantially vertical direction, a first detection unit that detects vibration generated by striking the striking surface, and a first that detects displacement of the vertical movement of the striking surface. And an electronic percussion instrument that outputs a signal based on the detection results of the first and second detection units to the sound source device.
A first frame that supports the striking surface; and a second frame that is connected to the first frame and forms a bottom surface opposite to the striking surface, and passes through the first and second frames. One cymbal connected to a shaft with the striking surface facing up and moving up and down in conjunction with the shaft;
A pedestal portion for seating a peripheral portion of the second frame through which the shaft passes when the shaft is fixed in a state of passing through the shaft below the cymbal and the cymbal moves downward in conjunction with the shaft. And an electronic percussion instrument. The shaft is formed in a substantially mountain shape in cross section through the shaft, and includes a support portion that supports the first frame so that the first frame can swing with respect to the shaft.
The seating portion seated on the pedestal portion of the second frame is configured to bend toward the pedestal portion larger than the radius of curvature centered on the support position of the support portion in the cross-sectional view,
2. The electronic percussion instrument according to claim 1, wherein the pedestal portion is configured to be recessed in a bending direction of the seating portion so as to be approximately approximate to an outer shape of the seating portion in the sectional view. A moving portion that is disposed below the cymbal through the shaft and moves downward in conjunction with the cymbal when the cymbal moves downward;
The electronic percussion instrument according to claim 1, wherein the second detection unit electrically detects a movement amount of the movement unit.   4. The electronic percussion instrument according to claim 2, further comprising an adjustment unit that adjusts the second detection unit to detect a predetermined value when the seating unit is seated on the pedestal unit. 5. Comprising a contact portion that can move up and down in conjunction with the cymbal through the shaft and contact the moving portion;
5. The electronic percussion instrument according to claim 4, wherein the adjustment portion is configured such that a contact portion thereof is vertically movable along the shaft with respect to the cymbal and the moving portion. A rotation suppression unit that fits with the lower portion of the support unit in a state where the shaft is loosened, and suppresses the rotation of the support unit around the shaft;
An urging portion for urging the support portion upward with respect to the rotation suppressing portion;
A cylindrical portion that stands up from the rotation restraining portion and is loosely penetrated by the support portion and the cymbal, and forms a path through which the shaft loosely penetrates;
A fastening portion screwed in a state of sandwiching the support portion and the cymbal on the opposite side of the rotation suppression portion of the cylindrical portion;
The electronic percussion instrument according to claim 5, wherein the contact portion is constituted by the rotation suppressing portion.   5. The electronic percussion instrument according to claim 4, wherein the adjustment unit is configured to be able to move the pedestal portion up and down along the shaft relative to the cymbal and the moving unit. The second frame is connected to the first frame so as to form an internal space with the first frame;
The electronic percussion instrument according to claim 1, wherein the first detection unit is disposed on an inner surface of the second frame.

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