Electronic percussion instrument

Abstract

The invention discloses an electronic percussion instrument which can stably and reliably convert a percussion surface into an electric signal and output the electric signal by a piezoelectric element even if the percussion surface is percussion from any direction. Comprising a body part which is provided with a hitting surface capable of being hit by a performer; and a piezoelectric element which is mounted on a mounting surface (Sa) formed on the main body part, converts vibration generated by striking the striking surface (F) into an electric signal, and has an output characteristic in which vibration in a direction perpendicular to the mounting surface (Sa) is higher than vibration in a direction parallel to the mounting surface (Sa). The electronic percussion instrument is capable of outputting an electric signal generated by the piezoelectric element. Wherein the mounting surface Sa is composed of a surface inclined in a vertical direction beta from a horizontal plane to the center of the body part, and the piezoelectric elements are mounted at equal intervals in a concentric circle shape around a central axis C of the body part.

Description

Technical Field

[0001] The invention relates to the field of percussion instruments, and in particular to an electronic percussion instrument capable of outputting an electrical signal generated by a piezoelectric element. Background Art

[0002] As a conventional electronic percussion instrument, an electronic cymbal, such as disclosed in patent document 1 (JP-A-2005-331972), includes an electronic cymbal body composed of a striking pad having a striking surface that can be struck by a performer and a frame portion supporting the back side of the striking pad, a vibration sensor capable of detecting the striking of the striking surface of the striking pad, and an output cable for outputting a detection signal detected by the vibration sensor to the outside. Then, when the performer strikes the striking surface of the electronic cymbal body with a stick, the vibration sensor can detect the vibration and output it to the outside, so that it can be played like an acoustic cymbal.

[0003] However, in the above-mentioned prior art, since the piezoelectric element is used as the vibration sensor, there are the following problems.

[0004] In existing electronic cymbals, the piezoelectric element is mounted on a mounting surface formed in the main body, and is composed of an element that converts the vibration generated by striking the striking surface into an electrical signal. Since the output characteristic is that the vibration in the direction perpendicular to the mounting surface is higher than the vibration in the direction parallel to the mounting surface, when struck from a direction parallel to the mounting surface, there is a problem that the electrical signal cannot be generated smoothly and the desired output cannot be achieved.

[0005] For an electronic cymbal equipped with multiple piezoelectric elements, the output generated by the vertical vibration is uniform, but the output generated by the horizontal vibration is still uneven and unstable. Such a problem occurs not only in electronic cymbals, but also in other electronic musical instruments in which the striking of the striking surface is detected by the piezoelectric element and the output is output. Therefore, the present invention proposes an electronic percussion instrument that can output the electrical signal generated by the piezoelectric element to eliminate the above defects. Summary of the invention

[0006] The object of the present invention is to provide an electronic percussion instrument, which can stably and reliably convert and output electrical signals by piezoelectric elements even when struck on a striking surface from any different directions.

[0007] In order to achieve the above object, the present invention provides an electronic percussion instrument, comprising:

[0008] The main body has a striking surface that can be struck by the performer;

[0009] a piezoelectric element mounted on a mounting surface formed on the main body, converting vibrations generated by striking the striking surface into electrical signals, and having an output characteristic that vibrations in a direction perpendicular to the mounting surface are higher than vibrations in a direction parallel to the mounting surface;

[0010] The electronic percussion instrument is capable of outputting the electrical signal generated by the piezoelectric element;

[0011] The mounting surface is composed of a surface inclined from a horizontal plane to a vertical direction toward the center of the main body, and the piezoelectric elements are mounted in a concentric circle with equal intervals around the central axis of the main body.

[0012] Optionally, three or more piezoelectric elements are installed around the central axis of the main body in a concentric circle with equal intervals.

[0013] Optionally, when the shape around the center axis including a predetermined area of ​​the main body is regarded as a virtual conical shape, on the side of the virtual conical shape, each of the mounting surfaces forms concentric circles around the center axis, and the mounting surfaces are arranged on the outer circumferential surface or the inner circumferential surface of the main body along the circumferential direction.

[0014] Optionally, the mounting surface is formed along the circumferential direction of the outer circumferential surface or the inner circumferential surface of the main body portion, and is composed of a plane corresponding to the mounting portion of the piezoelectric element.

[0015] Optionally, the mounting surface is substantially the same as an outer shape of the piezoelectric element.

[0016] Optionally, the piezoelectric element is provided with a buffer member, and is mounted on the mounting surface by contacting the buffer member.

[0017] Compared with the prior art, the technical solution of the present invention has at least the following beneficial effects:

[0018] The electronic percussion instrument described in the present invention has a mounting surface composed of a surface inclined in a vertical direction from a horizontal plane to the center of the main body, and the piezoelectric elements are installed in a concentric circle with equal intervals around the central axis of the main body. Therefore, even if the striking surface is struck from any different directions, the piezoelectric elements can stably and reliably convert it into an electrical signal and output it.

[0019] Since the electronic percussion instrument described in the present invention has three or more piezoelectric elements installed at equal intervals in concentric circles around the central axis of the main body, the strikes on the striking surface can be stably converted into electrical signals by the piezoelectric elements, and strikes in various directions can be output evenly.

[0020] When the shape around the central axis including a predetermined area of ​​the main body is regarded as a virtual cone shape, on the side of the virtual cone shape, each mounting surface forms concentric circles around the central axis, and the mounting surfaces are arranged on the outer circumferential surface or the inner circumferential surface of the main body along the circumferential direction. Therefore, the piezoelectric element can evenly receive the vibration of the striking surface over the entire striking surface, thereby suppressing the change in the electrical signal output caused by the difference in the striking position.

[0021] The electronic percussion instrument of the present invention has a mounting surface formed along the circumferential direction of the outer or inner surface of the main body and is composed of a plane corresponding to the mounting portion of the piezoelectric element, so the piezoelectric element can be stably fixed on the mounting surface.

[0022] Since the mounting surface of the electronic percussion instrument of the present invention is substantially the same as the external shape of the piezoelectric element, the mounting position of the piezoelectric element relative to the inner circumferential surface of the main body can be accurately grasped during the installation of the piezoelectric element, thereby improving the positioning accuracy of the piezoelectric element. In other words, by installing the piezoelectric element corresponding to the mounting surface, the piezoelectric element can be naturally positioned, thereby improving the positioning accuracy.

[0023] Since the piezoelectric element of the electronic percussion instrument of the present invention is provided with a buffer component and is mounted on a mounting surface by contacting the buffer component, damage to the piezoelectric element due to vibration generated by striking can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The figure is a perspective view of the overall appearance of the electronic percussion instrument according to the present invention.

[0025] Figure 2 The three views of the main body of the electronic percussion instrument of the present invention are shown in FIG.

[0026] Figure 3 for Figure 2 Cross-section along line III-III.

[0027] Figure 4 It is an exploded perspective view of the main body of the electronic percussion instrument according to the present invention.

[0028] Figure 5 The figure is a bottom view of the main body of the electronic percussion instrument of the present invention after the cover member is removed.

[0029] Figure 6 This is a bottom view of the electronic percussion instrument body of the present invention after removing the cover member and the piezoelectric element.

[0030] Figure 7 for Figure 6 Cross-sectional view along line VII-VII.

[0031] Figure 8 Schematic diagram of the piezoelectric element of the electronic percussion instrument of the present invention.

[0032] Fig. 9 for Figure 8 Cross-sectional view along line IX-IX.

[0033] Fig.10 3 views of the percussion pad of the electronic percussion instrument according to the present invention.

[0034] Fig.11 A perspective view of the pad from below.

[0035] Fig.12 3 views of the frame portion of the electronic percussion instrument of the present invention.

[0036] Fig.13 This is a perspective view of the frame portion as viewed from below.

[0037] Fig.14 Three views of the cover component of the electronic percussion instrument of the present invention.

[0038] Fig.15 This is a perspective view of the cover member viewed from below.

[0039] Fig.16 This is a perspective view of an electronic percussion instrument according to an embodiment of the present invention in which three piezoelectric elements are installed.

[0040] Fig.17 This is a perspective view of an electronic percussion instrument according to an embodiment of the present invention, in which five piezoelectric elements are installed.

[0041] Fig.18 FIG. 4 is a schematic diagram showing the installation of a piezoelectric element in an electronic percussion instrument according to an embodiment of the present invention.

[0042] Fig.19 FIG. 4 is a schematic diagram of an installation configuration of a piezoelectric element in an electronic percussion instrument according to an embodiment of the present invention.

[0043] Fig. 20 FIG. 4 is a schematic diagram of an installation configuration of a piezoelectric element in an electronic percussion instrument according to an embodiment of the present invention.

[0044] Fig.21 It is a cross-sectional schematic diagram of the piezoelectric element of the electronic percussion instrument described in the present invention.

[0045] Fig. 22 The three views are of the buffer component on the piezoelectric element of the electronic percussion instrument according to the present invention.

[0046] In the figure:

[0047] 1 Main body part

[0048] 2 Pads

[0049] 2a Insertion hole

[0050] 3. Framework

[0051] 3a Insertion hole

[0052] 3b Raised part

[0053] 4 Piezoelectric element (vibration sensor)

[0054] 5 substrate

[0055] 6 Output cable

[0056] 7-axis sleeve

[0057] 7A Insertion hole

[0058] 8 Cover plate components

[0059] 8a Opening

[0060] S Inner Surface

[0061] Sa Mounting surface

[0062] T support frame

[0063] Ta bracket leg

[0064] J Output jack

[0065] F striking side

[0066] Fa arcuate part

[0067] Fb cup

[0068] Fc edge

[0069] L Tightening components

[0070] H, Ha, Hb opening

[0071] D Buffer member

[0072] Da Surface

[0073] Db Back

[0074] E Edge Sensor DETAILED DESCRIPTION

[0075] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0076] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0077] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0078] like Figures 1 to 6 As shown, the electronic percussion instrument of the present invention comprises: a main body 1, a piezoelectric element 4 (vibration sensor) mounted on the inner peripheral surface S of a frame 3 in the main body 1, and a cover member 8. The main body 1 is composed of a striking pad 2 and a frame 3, and has a striking surface F that a performer can strike.

[0079] like Figure 1 As shown in the figure, the main body 1 is supported at a predetermined height by a support frame T extending in a vertical direction of the support leg Ta. The main body 1 is composed of a striking pad 2 having a striking surface F that can be struck by a performer and a frame 3 supporting the back side of the striking pad 2. In addition, a plurality of openings Ha are provided in the striking pad 2, and a plurality of openings Hb are provided in the frame 3. These openings Ha and the openings Hb are connected to form the opening H of the main body 1. In addition, the symbol L in the figure represents a tightening member for tightening the main body 1 relative to the support frame T to fix it.

[0080] The striking pad 2 is made of a rubber material or soft resin (silicon rubber in this embodiment) that can be struck with a stick. Fig.10 and Fig.11As shown, the striking pad 2 is composed of a disc-shaped member having an insertion hole 2a at the center thereof into which the support frame T can be inserted. In addition, the striking surface F formed on the upper surface of the striking pad 2 includes: a cup-shaped portion Fb formed by protruding at the center of the striking pad 2, an edge portion Fc formed at the edge of the striking pad 2, and an arch-shaped portion Fa formed by the area between the cup-shaped portion Fb and the edge portion Fc.

[0081] The frame portion 3 is made of hard resin or metal (ABS resin in this embodiment). Fig.12 and Fig.13 As shown, it is composed of a disk-shaped member having an insertion hole 3a at the center position into which a support frame T can be inserted. In addition, the body 1 is formed by mounting and integrating the striking pad 2 on the surface of the frame 3, and a protrusion 3b corresponding to the cup-shaped portion Fb of the striking pad 2 is formed at the center.

[0082] In addition, a mounting surface Sa for connecting the piezoelectric element 4 is formed on the inner peripheral surface S of the protrusion 3b in the frame portion 3. Fig.12 and Fig.13 As shown, a plurality of mounting surfaces Sa (four in this embodiment) are formed along a circumferential direction at the inner circumferential surface S of the frame portion 3 in the body portion 1, and a piezoelectric element 4 is mounted on each mounting surface Sa.

[0083] like Fig.14 and Fig.15 As shown, the cover member 8 is made of a ring-shaped member having an opening 8a in the center into which the support frame T etc. can be inserted, and as shown in FIG. Figure 2 and Figure 3 As shown, on the back side of the frame portion 3, the inner peripheral surface S of the protrusion 3b is covered and the substrate 5 provided with a predetermined circuit is covered (see Figures 3 to 6 The substrate 5 is electrically connected to each piezoelectric element 4 and transmits the detection signal of each piezoelectric element 4 to the substrate 5.

[0084] The piezoelectric element 4 as a vibration sensor is mounted on the mounting surface Sa formed on the main body 1 (frame 3) through the buffer member D, and is composed of a sensor capable of converting the vibration generated by striking the striking surface F into an electrical signal, such as Figure 8 and Fig. 9 As shown, the structure includes an upper electrode 4a made of a silver conductor, for example, a lower electrode 4b made of a brass plate, for example, and a piezoelectric ceramic 4c interposed between the upper electrode 4a and the lower electrode 4b.

[0085] Furthermore, the wiring H1 is connected to the upper electrode 4a, and the wiring H2 is connected to the lower electrode 4b, and when the performer strikes the striking surface F and the vibration is transmitted to the piezoelectric element 4, the entirety is vibrated and bent, and a voltage corresponding to the amount of bending is generated. When the voltage is generated in this way, the upper electrode 4a acts as a positive electrode and the lower electrode 4b acts as a negative electrode, and current flows through the wirings H1 and H2, and an electrical signal is output through the substrate 5 and the output cable.

[0086] Although the piezoelectric element 4 generates voltage and outputs an electrical signal by bending in a direction b orthogonal to the mounting surface Sa, its structure is difficult to bend in a direction a parallel to the mounting surface Sa, and therefore has an output characteristic in which the vibration in the direction b perpendicular to the mounting surface Sa is higher than the vibration in the direction a parallel to the mounting surface Sa (resulting in an output characteristic of higher voltage or higher current).

[0087] Furthermore, the piezoelectric element 4 according to the present embodiment has a cushioning member D having a cushioning property made of urethane foam or the like mounted on its bottom surface, such as Fig. 9 As shown, the surface of the buffer member D is adhered to the mounting surface Sa with an adhesive or the like. In addition, the buffer member D is formed into a cylindrical shape, such as Fig. 9 As shown, it has an outer shape that is smaller than the outer diameter of the piezoelectric element 4 (preferably about 67% of the diameter of the piezoelectric element as the vibration node of the piezoelectric element 4) to ensure that the piezoelectric element 4 can bend with vibration.

[0088] In addition, an edge sensor E is installed on the outer peripheral edge of the surface side of the frame portion 3, and can detect the impact on the edge portion Fc of the striking pad 2. The edge sensor E is electrically connected to the substrate 5 through wiring like the piezoelectric element 4, and transmits the detection signal to the substrate 5. The output cable 6 is connected to the piezoelectric element 4 (vibration sensor) and the edge sensor E through the substrate 5, so that the detection signal detected by the piezoelectric element 4 and the edge sensor E can be output to the outside. The output cable 6 forms an output jack J at its front end, and can be connected to an external signal processing device (not shown).

[0089] Then, when the performer strikes the striking surface F of the striking pad 2 with a stick and vibrates the main body 1, the piezoelectric element 4 detects the intensity of the strike and outputs an electrical signal corresponding to the intensity to an external signal processing device (not shown) through the output cable 6. In addition, the strike on the edge portion Fc is recognized based on the on / off state of the edge sensor E, and when the edge sensor E is turned off and the strike is detected, it is determined whether the bow portion Fa or the cup portion Fb has been struck and a predetermined musical sound is output.

[0090] like Figure 3 and Figure 4As shown, the shaft sleeve 7 is composed of a cylindrical elastic member (rubber material in this embodiment) with an insertion hole in the center. The shaft sleeve 7 is located between the support frame T in the insertion hole 3a of the frame part 3, and can suppress the vibration generated by knocking the main body 1 from being transmitted to the support frame T.

[0091] Here, if Figure 6 and Figure 7 As shown, the mounting surface Sa of this embodiment is composed of a surface inclined from a horizontal plane (including a surface in the horizontal direction α) toward a vertical direction β at the center of the main body 1, and the piezoelectric element 4 is arranged around the central axis C of the main body 1 (refer to Figure 3 and Figure 7 ) are installed in a manner of concentric circles with equal intervals. That is, since the inner circumferential surface S formed in the frame portion 3 of the main body portion 1 is formed in a truncated cone shape, a plurality of (four in this embodiment) mounting surfaces Sa are formed in the inner circumferential surface S at equal intervals along the circumferential direction centered on the central axis C, and the piezoelectric element 4 is installed in a concentric circle at each mounting surface Sa.

[0092] Furthermore, when the shape around the central axis C including the predetermined area of ​​the main body 1 (the predetermined area on the inner circumference or the outer circumference) is regarded as a virtual cone shape, on the side of the virtual cone shape (the fan-shaped surface in the unfolded view, the same below), a plurality of mounting surfaces Sa form concentric circles around the central axis C, and each mounting surface Sa is composed of a surface inclined at a predetermined angle from the horizontal plane to the vertical direction β toward the center of the frame portion 3 of the main body 1, so that the piezoelectric element 4 can be arranged in a three-dimensional manner (three-dimensional consisting of the horizontal direction α and the vertical direction β), and the piezoelectric element 4 can be fully bent under vibration in the horizontal direction α and the vertical direction β. Therefore, for the vibration in both the horizontal direction α and the vertical direction β due to the striking of the striking surface F, the electrical signal can be output well and evenly.

[0093] In addition, when the shape around the central axis C including the predetermined area of ​​the main body 1 is regarded as a virtual cone shape, on the side surface of the virtual cone shape (the fan-shaped surface in the development diagram, the same below), a plurality of mounting surfaces Sa are arranged concentrically around the central axis C (four in this embodiment), and the mounting surface Sa of this embodiment is formed along the circumferential direction in the inner circumferential surface S of the frame portion 3 in the main body 1, such as Figure 6 and Figure 7 As shown, it is composed of a plane (flat surface) corresponding to the mounting portion of the piezoelectric element 4 (the buffer member D in this embodiment), as shown in FIG. Figure 5 and Figure 6As shown, the shape (circular) and size (diameter) are formed to be substantially the same as the outer shape of the piezoelectric element 4. In addition, the outer shape of the piezoelectric element 4 is not limited to a circle, and may be an elliptical or rectangular shape, but in this case, the shape of the mounting surface Sa is also substantially the same as the outer shape of the piezoelectric element 4.

[0094] In this embodiment, the mounting surface Sa is arranged on the inner circumferential surface S of the frame portion 3 in the main body 1 along the circumferential direction, but the mounting surface Sa may also be arranged on the outer circumferential surface (surface of the raised portion 3b) of the frame portion 3 in the main body 1 along the circumferential direction. In addition, in this embodiment, four piezoelectric elements 4 are installed at equal intervals in concentric circles around the central axis C of the main body 1, but it is preferred that more than three piezoelectric elements 4 are installed at equal intervals in concentric circles around the central axis C of the main body 1. For example, Fig.16 4 shows a state where three piezoelectric elements 4 are arranged at equal intervals in a concentric circle shape. Fig.17 The figure shows a state where five piezoelectric elements 4 are arranged at equal intervals in a concentric circle shape.

[0095] In this embodiment, since the mounting surface Sa is composed of a surface inclined from a horizontal plane (including the surface in the horizontal direction α) to a vertical direction β of the center of the main body 1, and the piezoelectric element 4 is installed in a concentric circle with equal intervals around the central axis C of the main body 1, even if it is struck on the striking surface F from any different direction, it can be stably and reliably converted into an electrical signal by the piezoelectric element and output.

[0096] In addition, if in the embodiment, three or more piezoelectric elements 4 are installed in a concentric circle with equal intervals around the central axis C of the main body 1, the vibration of the knock on the striking surface F can be stably converted into an electrical signal by the piezoelectric element 4, thereby achieving uniform output for knocks in various directions. In addition, since the mounting surface Sa of the present embodiment is arranged along the circumferential direction on the outer circumference or inner circumference of the main body 1, the piezoelectric element 4 can receive the vibration of the knock on the striking surface F evenly over the entire striking surface F, thereby suppressing the change in the electrical signal output caused by the difference in the knocking position.

[0097] In addition, the mounting surface Sa of the present embodiment is formed along the circumferential direction on the outer circumferential surface or the inner circumferential surface of the main body 1 and is composed of a plane (flat surface) corresponding to the mounting portion (buffer member D) of the piezoelectric element 4, so that the piezoelectric element 4 can be stably fixed to the mounting surface Sa compared to the case of fixing to a curved surface. In addition, the mounting surface Sa is not limited to a flat surface, and may also be a curved surface forming the inner circumferential surface S (or outer circumferential surface).

[0098] In addition, since the mounting surface Sa of the present embodiment is substantially the same as the external shape and size of the piezoelectric element 4, the mounting position of the piezoelectric element 4 relative to the inner peripheral surface S of the main body 1 can be accurately grasped during the mounting work of the piezoelectric element 4, thereby improving the positioning accuracy of the piezoelectric element 4. In other words, by mounting the piezoelectric element 4 corresponding to the mounting surface Sa, the piezoelectric element 4 can be naturally positioned, thereby improving the positioning accuracy.

[0099] In addition, since the piezoelectric element 4 of this embodiment is provided with a buffer member D and is mounted on the mounting surface Sa by contacting the buffer member D, it is possible to prevent the piezoelectric element 4 from being damaged by vibrations caused by knocking. The buffer member D is not limited in material and shape as long as it has a buffering property and is mounted on the bottom surface of the piezoelectric element 4.

[0100] Although the present embodiment has been described above, the present invention is not limited thereto. Fig.18 As shown in FIG. 1 , a plurality of piezoelectric elements 4 are arranged concentrically on the circumferential direction of the inner surface S (or outer surface) forming a conical shape (truncated cone shape (truncated cone)), or as shown in FIG. Fig.19 As shown, a plurality of piezoelectric elements 4 are arranged concentrically in the circumferential direction of the inner surface S (or outer surface) of the cone-shaped (truncated cone-shaped) inverted upward and downward directions, or as shown in FIG. Fig. 20 As shown, a plurality of piezoelectric elements 4 are arranged concentrically in the circumferential direction of an inner peripheral surface S (or outer peripheral surface) forming a polyhedral shape.

[0101] In addition, the buffer member D is not limited to the cylindrical shape as described above, but may also be Fig.21 and Fig. 22 The annular shape is shown. In the above-mentioned annular buffer member D, the back side Db is attached to the bottom surface (lower electrode 4b) of the piezoelectric element 4 with an adhesive or the like, and the surface Da is attached to the mounting surface Sa with an adhesive or the like. In addition, the annular buffer member D has an annular shape with an outer diameter dimension t1 substantially equal to the outer diameter dimension of the piezoelectric element 4. Therefore, while suppressing the excessive free vibration of the piezoelectric element 4 itself caused by knocking, the piezoelectric element 4 can well follow the bending of the main body 1, thereby ensuring the voltage of the output electrical signal, while accelerating the attenuation to prevent pronunciation errors. In addition, since the buffer member D is annular, a certain degree of free vibration can be ensured in the inner diameter region of the buffer member D, and the sensitivity of the striking surface F to the weak strike can be prevented from being reduced.

[0102] However, in the annular buffer member D, the inner diameter t2 of the inner hollow portion is preferably 60 to 80% of the outer diameter t1, and the inner diameter t2 of the inner hollow portion is most preferably 70% of the outer diameter t1. In the annular buffer member D according to another embodiment, the surface Da in close contact with the mounting surface Sa is a flat surface, but a slit may be formed on a part or the entire surface Da, or the ratio of the inner diameter t2 to the outer diameter t1 may be set to another ratio.

[0103] In addition, in the present embodiment, the main body 1 is composed of the striking pad 2 and the frame 3, and the mounting surface Sa is formed on the inner peripheral surface S of the frame 3, but the mounting surface may be formed on the inner peripheral surface of a single main body 1. In addition, in the present embodiment, although it is applicable to electronic cymbals, it may also be applied to other electronic percussion instruments such as electronic drums having piezoelectric elements 4.

[0104] As long as the mounting surface is composed of a surface inclined from a horizontal plane to a vertical direction toward the center of the main body, and the piezoelectric elements are installed in electronic percussion instruments at equal intervals in concentric circles around the central axis of the main body, it can also be applied to instruments with different appearance shapes or additional functions.

[0105] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. An electronic percussion instrument, characterized in that: include: The main body has a striking surface that can be struck by the performer; a piezoelectric element mounted on a mounting surface formed on the main body, converting vibrations generated by striking the striking surface into electrical signals, and having an output characteristic that vibrations in a direction perpendicular to the mounting surface are higher than vibrations in a direction parallel to the mounting surface; The electronic percussion instrument is capable of outputting the electrical signal generated by the piezoelectric element; The mounting surface is composed of a surface inclined from a horizontal plane to a vertical direction toward the center of the main body, and the piezoelectric elements are mounted in a concentric circle with equal intervals around the central axis of the main body.

2. The electronic percussion instrument according to claim 1, characterized in that: The piezoelectric elements are installed in three or more locations around the central axis of the main body at equal intervals in a concentric circle shape.

3. The electronic percussion instrument according to claim 1, characterized in that: When the shape around the central axis including a predetermined area of ​​the main body is regarded as a virtual conical shape, on the side of the virtual conical shape, each of the mounting surfaces forms concentric circles around the central axis, and the mounting surfaces are arranged on the outer circumferential surface or the inner circumferential surface of the main body along the circumferential direction.

4. The electronic percussion instrument according to claim 1, characterized in that: The mounting surface is formed along the circumferential direction of the outer circumferential surface or the inner circumferential surface of the main body portion, and is composed of a plane corresponding to the mounting portion of the piezoelectric element.

5. The electronic percussion instrument according to claim 4, characterized in that: The mounting surface has substantially the same outer shape as that of the piezoelectric element.

6. The electronic percussion instrument according to claim 1, characterized in that: The piezoelectric element is provided with a buffer member and is mounted on the mounting surface by contacting the buffer member.

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