JP6278496B1 - Electronic percussion instrument - Google Patents

Abstract

An electronic percussion instrument capable of improving sound generation accuracy and sound quality by improving the reliability of a signal line. An electronic percussion instrument 100 includes three tapping sensors 104a to 104c in contact with a head 101 hit by a player. The three tapping sensors 104a to 104c are electrically connected by the output signal line 106 and the connection signal line 108. The output signal line 106 connects two tapping sensors 104a and 104c of the three tapping sensors 104a to 104c in parallel to the signal processing device. The connecting signal line 108 connects all the tapping sensors 104a to 104c in series between the two tapping sensors 104a and 104c. As a result, all tapping sensors 104a to 104c are connected in a ring shape to transmit a detection signal to the signal processing device. [Selection] Figure 3

Description

  The present invention relates to an electronic percussion instrument that generates an electronic musical tone by detecting an impact of a hitting surface hit with a hand or a stick.

  2. Description of the Related Art Conventionally, there are electronic percussion instruments that generate an electronic musical tone by detecting the impact of a hit surface hit with a hand or a stick. For example, Patent Literature 1 below discloses a bar-shaped percussion instrument in which a hitting sensor including two vibration sensors is arranged on the back side of a hitting surface extending in a bar shape to achieve uniform sensitivity distribution.

JP 2014-119664 A

  However, in the rod-like percussion instrument described in Patent Document 1, two tapping sensors (vibration sensors) are electrically connected to the sound source device by one signal line, and therefore, these signal lines are disconnected. When this occurs, there is a problem that the sensitivity distribution and the sound quality are deteriorated because the sensitivity distribution is biased or the musical sound itself is disabled.

  The present invention has been made to address the above-described problems, and an object of the present invention is to provide an electronic percussion instrument that can improve the sound generation accuracy and sound quality by increasing the reliability of signal lines.

In order to achieve the above object, the present invention is characterized in that a head constituting a hitting surface hit by a player and vibration and pressure caused by hitting the head directly or indirectly at different positions with respect to the head. A plurality of tapping sensors that detect at least one of the tapping sensors and convert them into electrical detection signals, and extend from each positive electrode and each negative electrode of two tapping sensors of the plurality of tapping sensors, and process the detection signals Two output signal lines composed of a pair of positive and negative wires connected directly or indirectly to the signal processing device, and the positive electrodes and the negative electrodes of all tapping sensors are sequentially connected between the two output signal lines. And a connecting signal line composed of a pair of positive and negative electric wires connected to.

  According to the feature of the present invention configured as described above, the electronic percussion instrument connects two output sensors connected to the signal processing device to two of the plurality of tapping sensors, and the two tapping sensors. Since all the tapping sensors are sequentially connected to each other by the connection signal line, the two output signal lines are connected even if the output signal line and the connection signal line are disconnected at one place. A detection signal is transmitted to the signal processing device via one of them. For this reason, according to the electronic percussion instrument of the present invention, the reliability of the signal line for the signal processing device can be improved, and the sound generation accuracy and sound quality based on the detection signal can be improved. Further, according to this electronic percussion instrument, efficient wiring can be achieved as compared with a wiring structure using a first signal line and a second signal line described later, and the configuration of the electronic percussion instrument can be reduced in weight and simplified.

  Another feature of the present invention resides in that the electronic percussion instrument further includes a printed wiring board that electrically connects the two output signal lines each formed of an electric wire.

  According to another aspect of the invention configured as described above, the electronic percussion instrument further includes a printed wiring board that electrically connects the two output signal lines each formed of an electric wire. Compared to the case where the output signal lines composed of two electric wires are directly connected to each other, the work load for the connection can be reduced, and the durability and reliability of the connection portion can be prevented from being lowered.

  Another feature of the present invention is that, in the electronic percussion instrument, the two output signal lines are connected to a printed wiring board through a connector.

  According to another feature of the present invention configured as described above, the electronic percussion instrument has the two output signal lines connected to the printed wiring board via the connector, so that the two output signal lines are connected to the printed wiring board. On the other hand, compared to the case of soldering, it is possible to easily and accurately connect the two output signal lines to the printed circuit board, and to improve the productivity and reliability of the electronic percussion instrument.

  Another feature of the present invention resides in that, in the electronic percussion instrument, the plurality of tapping sensors are equally arranged around a central portion of the head in plan view.

  According to another feature of the present invention configured as described above, the electronic percussion instrument has a plurality of tapping sensors that are evenly arranged around the central portion of the head in plan view. The distribution can be made uniform.

Another feature of the present invention is that in the electronic percussion instrument, the tapping sensor is formed of a plate-like piezoelectric element, and the output signal line and the connection signal line are respectively opposite to each other through the center of the tapping sensor. Be connected.

  According to another aspect of the present invention configured as described above, the output signal line and the connection signal of the electronic percussion instrument are connected to the opposite sides through the center of the tapping sensor. It is possible to stabilize the detection characteristics of the tapping sensor by suppressing the bias of deformation of the tapping sensor due to the connection of the wires.

In order to achieve the above object, at least one of vibrations and pressures caused by tapping the head by directly or indirectly contacting the head constituting the striking surface tapped by the player at different positions. A plurality of tapping sensors that detect one of them and convert it into an electrical detection signal, and a plurality of first tapping sensors that extend from all the tapping sensors and that are directly or indirectly connected to a signal processing device that processes the detection signals. A signal line and a second signal line provided separately from the first signal line and extending from all of the tapping sensors and directly or indirectly connected to the signal processing device may be provided.

According to this, in the electronic percussion instrument, the plurality of tapping sensors are electrically connected to the two signal lines of the first signal line and the second signal line, respectively, with respect to the signal processing device that processes the detection signals output from the plurality of tapping sensors. Therefore, even if one of the first signal line and the second signal line is disconnected, the detection signal is transmitted to the signal processing device by the other signal line, so the reliability of the signal line Therefore, the sound generation accuracy and sound generation quality based on the detection signal can be improved.

It is a perspective view showing the outline of the appearance composition of the electronic percussion instrument concerning a 1st embodiment of the present invention. It is sectional drawing which shows the outline of the internal structure of the electronic percussion instrument shown in FIG. It is a bottom view which shows the outline of the internal structure of the electronic percussion instrument shown in FIG. 1 in a state where the back cover is omitted. FIG. 10 is a schematic diagram showing wiring states of output signal lines and connection signal lines to a plurality of tapping sensors shown in FIGS. 3 and 9. It is a schematic diagram for demonstrating each wiring position of the output signal line and connection signal line to the tapping sensor shown in FIG. 4 and FIG. FIG. 10 is a schematic diagram for explaining an output path of a detection signal when a disconnection occurs in a connection signal line connecting a plurality of tapping sensors illustrated in FIGS. 3 and 9. FIG. 10 is a schematic diagram for explaining an output path of a detection signal when disconnection occurs in an output signal line connecting a plurality of tapping sensors shown in FIGS. 3 and 9. It is a perspective view which shows the outline of the external appearance structure of the electronic percussion instrument which concerns on 2nd Embodiment of this invention. It is a top view which shows the outline of an external appearance structure of the electronic percussion instrument shown in FIG. It is sectional drawing which shows the outline of the internal structure of the electronic percussion instrument seen from the 10-10 line shown in FIG. It is a schematic diagram which shows the wiring state of the output signal line and connection signal line to the some tapping sensor which concerns on the modification of this invention. It is a schematic diagram which shows the wiring state of the output signal line and connection signal line to the several hit | damage sensor which concerns on the other modification of this invention. It is a schematic diagram which shows the wiring state of the output signal line and connection signal line to the several hit | damage sensor which concerns on the other modification of this invention.

(First embodiment)
Hereinafter, a first embodiment of an electronic percussion instrument according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view schematically showing an outline of an external configuration of an electronic percussion instrument 100 according to the present invention. 2 is a cross-sectional view schematically showing an outline of the internal configuration of the electronic percussion instrument 100 shown in FIG. Note that the drawings referred to in this specification are schematically shown by exaggerating some of the components in order to facilitate understanding of the present invention. For this reason, the dimension, ratio, etc. between each component may differ. The electronic percussion instrument 100 is an electronic cymbal that generates an electronic musical sound by detecting the impact of a strike surface hit by a performer (not shown) via a stick (not shown).

(Configuration of electronic percussion instrument 100)
The electronic percussion instrument 100 includes a head 101. The head 101 is a component that vibrates by a tapping operation by a player, and is configured by a circular plate-like body that is curved upward and curved in a plan view. The head 101 mainly includes a base body 102, tapping sensors 104a to 104c, a pad 110, and a back cover 111.

  The base body 102 is a component that becomes a core material that forms the head 101, and is configured by bending a metal material or a resin material upward in a convex shape and forming an annular plate-like body in plan view. . The base body 102 has a mounting hole 102a formed at the center. The mounting hole 102a is a portion through which a bar-shaped stand 90 for supporting the electronic percussion instrument 100 at a predetermined height position passes. A holding plate 103 is provided on the upper end surface of the mounting hole 102a in the figure.

  The holding plate 103 is a component for attaching the base body 102 to the stand 90, and is configured by forming a rubber material into a circular ring shape in plan view. The holding plate 103 is fixedly attached to the base body 102 by mounting bolts 103 a inserted from the back surface 102 b side of the base body 102. The holding plate 103 is held by the stand 90 by being sandwiched between two felt pressing tools 91a and 91b through which the stand 90 penetrates. In FIG. 2, the stand 90, the pressing tools 91 a and 91 b, and other parts attached to the stand 90 are indicated by two-dot chain lines.

  On the back surface 102b of the base body 102, a recessed mounting portion 102c is formed around the mounting hole 102a. The mounting portion 102c has six mounting bolts 103a and three outside the six mounting bolts 103a. Two tapping sensors 104a to 104c are provided. The three tapping sensors 104a to 104c are detectors that detect the vibration of the head 101, and output a detection signal that is an electrical signal corresponding to the vibration of the base body 102 to a signal processing device (not shown). In the present embodiment, each of the tapping sensors 104a to 104c is configured by a piezoelectric element in which electrodes are arranged on both sides of the piezoelectric ceramic and a metal plate is arranged on one of these electrodes.

  Here, the signal processing apparatus includes a microcomputer provided separately from the electronic percussion instrument 100, and an electronic circuit that outputs a musical sound signal based on detection signals output from the tapping sensors 104a to 104c, That is, it is a sound source. An external speaker (not shown) is connected to this signal processing device.

  As shown in FIG. 3, the three tapping sensors 104 a to 104 c are equally arranged in the circumferential direction around the attachment hole 102 a and attached to the attachment portion 102 c by the double-sided adhesive tape 105. In this case, the double-sided adhesive tape 105 is formed with an outer diameter smaller than the outer diameter of each of the tapping sensors 104a to 104c. Accordingly, the three tapping sensors 104a to 104c are attached to the attachment portion 102c in a state where the outer edge portion of the disk-shaped electrode is separated from the surface of the attachment portion 102c in plan view. The three tapping sensors 104a to 104c are electrically connected by the output signal line 106 and the connection signal line 108.

  As shown in FIG. 4, the output signal line 106 is an electric wire for electrically connecting any two tapping sensors 104 a to 104 c of the three tapping sensors 104 a to 104 c and the signal processing device. A conductor (for example, a copper wire) is formed in a linear shape. In the present embodiment, the output signal line 106 is provided for each of the two tapping sensors 104a and 104c. The ends of these output signal lines 106 opposite to the tapping sensors 104a and 104c are connected to output terminals 112 via connectors 107, respectively.

  The connector 107 is detachably attached to the printed wiring board 112a of the output terminal 112 at the same time by connecting each end of a total of four wires, that is, each positive-side electric wire and each negative-side electric wire constituting the two output signal lines 106, respectively. It is an instrument for connection, and is provided with four electrodes corresponding to the four electric wires in a resin housing.

  As shown in FIG. 4, the connection signal line 108 is provided separately from the output signal line 106, and all the tapping sensors 104 a to 104 c are connected between the two tapping sensors 104 a and 104 c to which the output signal line 106 is connected. It is an electric wire for connecting in series one by one, and is formed by forming a conductor (for example, copper wire) in a linear shape. In the present embodiment, the connecting signal line 108 electrically connects the tapping sensor 104a and the tapping sensor 104b and electrically connects the tapping sensor 104b and the tapping sensor 104c. The tapping sensors 104a to 104c are connected in series to the 104c.

  In this case, each connection signal line 108 connects the positive electrodes and the negative electrodes of the tapping sensors 104a to 104c to each other. Accordingly, the tapping sensors 104a to 104c are connected in a ring by the output signal line 106, the connection signal line 108, and the printed wiring board 112a.

  The output signal line 106 and the connection signal line 108 are attached along the surface of the attachment portion 102c, and are connected to the outer edge portions of the tapping sensors 104a to 104c through soldering or the like as shown in FIG. Is done. In this case, the output signal line 106 and the connecting signal line 108 are connected to opposite sides of the tapping sensors 104a to 104c via the center O of the tapping sensors 104a to 104c.

  Here, the opposite sides of the tapping sensors 104a to 104c through the center O are connected to the output signal line 106 (or the connecting signal line 108) in the tapping sensors 104a to 104c with the center O of the tapping sensors 104a to 104c as the center. A connection point P2 of the connection signal line 108 (or output signal line 106) exists in a region E of 90 ° clockwise from the point P1 and a region E of 180 ° counterclockwise of the connection point P1 of 90 ° or more. Say that.

  In the present embodiment, the output signal line 106 (or connection signal line 108) is a connection point of the output signal line 106 (or connection signal line 108) in the tapping sensors 104a to 104c with the center O of the tapping sensors 104a to 104c as the center. A connection point P2 of the connection signal line 108 (or the output signal line 106) is formed in a region E of 135 ° clockwise from P1 and 90 ° of the region of 135 ° counterclockwise. FIG. 5 shows a range of connection positions of the connection signal line 108 with respect to the output signal line 106 connected to the inner electrode shown in the drawing constituting the tapping sensor 104a. In FIG. 2, the output signal line 106, the connector 107, and the connection signal line 108 are not shown.

  The pad 110 is a portion that constitutes a striking surface on which a player uses a stick or the like, and an elastic body made of a rubber material or a foamed resin material is formed in an annular shape covering the upper surface and the outer edge of the base body 102, respectively. Configured. In this embodiment, the head 101 is composed of two types of materials, that is, the base body 102 and the pad 110. However, the head 101 is composed of only one type of material, for example, only a resin material or a fiber reinforced plastic containing a resin material. It can also be configured.

  The back cover 111 is a component that is attached to the back surface 102b of the base body 102 and covers the attachment portion 102c and the tapping sensors 104a to 104c attached to the attachment portion 102c, and stores the output terminal 112. It is formed in a cylindrical shape when viewed. In this case, the back cover 111 is accommodated with the output terminal 112 exposed to the outside. The back cover 111 is attached to the back surface 102b of the base body 102 by mounting bolts (not shown).

  The output terminal 112 outputs signal signals to the signal processing device and the tapping sensors 104a to 104c in order to output detection signals output from the tapping sensors 104a to 104c to a signal processing device provided outside the electronic percussion instrument 100, respectively. This is a jack-type interface for detachably connecting via 106. The output terminal 112 includes a printed wiring board 112a having a female connector to which the connector 107 is detachably connected in a resin casing. The printed wiring board 112a is formed with wirings that connect the positive signal lines of the two output signal lines 106 to each other and connect the negative signal lines to each other to transmit to the jacks. In FIG. 3, the back cover 111 is omitted and the output terminal 112 is indicated by a two-dot chain line.

(Operation of electronic percussion instrument 100)
Next, the operation of the electronic percussion instrument 100 configured as described above will be described. First, the performer assembles the electronic percussion instrument 100 on the stand 90 and then electrically connects the output terminal 112 and the signal processing device via a cable (not shown) so that the electronic percussion instrument 100 can be played.

  Next, the performer plays the electronic percussion instrument 100. Specifically, the performer strikes the upper surface of the head 101 using a stick. As a result, each of the tapping sensors 104a to 104c outputs a detection signal corresponding to the vibration propagated through the pad 110 and the base body 102 directly to the output signal line 106 or indirectly through the connection signal line 108. The data is output to 106. In this case, the detection signal output to the connection signal line 108 is transmitted to the output signal line 106 via the tapping sensors 104 a to 104 c connected to the connection signal line 108.

  The detection signal transmitted to the output signal line 106 is an electrical sum signal (a sum signal of vibration waveforms) of the detection signals output from the tapping sensors 104a to 104c on the printed wiring board 112a of the output terminal 112 via the connector 107. ) And output to the signal processing device. Thereby, the signal processing device generates a musical sound signal representing a musical sound based on the detection signal composed of the sum signal input via the output signal line 106 and outputs the musical sound signal to an external speaker. As a result, the electronic percussion instrument 100 can output musical sounds according to the performance operation of the performer from the external speaker.

  On the other hand, when the electronic percussion instrument 100 is played, the electronic percussion instrument 100 performs without any trouble even when the output signal line 106 or the connection signal line 108 is disconnected between the tapping sensors 104a to 104c. You can continue. Specifically, the electronic percussion instrument 100, for example, as shown in FIG. 6, when the connection signal line 108 between the tapping sensor 104a and the tapping sensor 104b is disconnected, the detection signal of the tapping sensor 104b is the tapping sensor. The signal is transmitted to the signal processing device counterclockwise through the connecting signal line 108, the tapping sensor 104c, and the output signal line 106 that connect 104b and the tapping sensor 104c (see the broken line arrow).

  Further, for example, as shown in FIG. 7, the electronic percussion instrument 100 detects the tapping sensor 104c when the output signal line 106 nearer the tapping sensor 104c is disconnected between the tapping sensor 104a and the tapping sensor 104c. The signal is clockwise via the connecting signal line 108 connecting the tapping sensor 104c and the tapping sensor 104b, the tapping sensor 104b, the connecting signal line 108 connecting the tapping sensor 104b and the tapping sensor 104a, the tapping sensor 104a, and the output signal line 106. Is transmitted to the signal processing device (see broken line arrow).

  Next, when the performer finishes the performance of the electronic percussion instrument 100, after disconnecting the electrical connection between the electronic percussion instrument 100 and the signal processing device, the performer removes the electronic percussion instrument 100 from the stand 90. Thus, the performer can end the performance of the electronic percussion instrument 100.

  As can be understood from the above description of operation, according to the first embodiment, the electronic percussion instrument 100 is connected to the signal processing device by two tapping sensors 104a and 104c among the three tapping sensors 104a to 104c. Since the output signal line 106 is connected and all the tapping sensors 104a to 104c are sequentially connected by the connecting signal line 108 between the two tapping sensors 104a and 104c, the output signal line 106 and the connecting signal line are connected. Even when a disconnection occurs in one of 108, the detection signal is transmitted to the signal processing device via one of the two output signal lines 106. Therefore, according to the electronic percussion instrument 100 according to the present invention, the reliability of the signal line with respect to the signal processing device can be improved, and the sound generation accuracy and sound quality based on the detection signal can be improved. Further, according to the electronic percussion instrument 100, more efficient wiring can be achieved as compared with a wiring structure using the first signal line 410 and the second signal line 420 described later, and the configuration of the electronic percussion instrument can be reduced in weight and simplified. Can do.

(Second Embodiment)
Next, a second embodiment of the electronic percussion instrument according to the present invention will be described with reference to FIGS. In the description of the second embodiment, portions different from the first embodiment will be mainly described, and common portions will be omitted as appropriate. An electronic percussion instrument 200 according to the second embodiment is an electronic drum that generates an electronic musical tone by detecting the impact of a hitting surface 201a hit by a performer (not shown) via a stick (not shown). is there.

(Configuration of electronic percussion instrument 200)
The electronic percussion instrument 200 includes a head 201. The head 201 is a component that is vibrated and elastically deformed by a tapping operation by a player, and is configured by forming a cloth material or a resin material into a sheet shape or a thin plate shape. In the present embodiment, the head 201 is configured by forming a mesh-like sheet body into a circle in plan view. The outer edge of this head 201 is held by a head frame 202.

  The head frame 202 is a component for placing the head 201 on the shell 203 in a tensioned state, and is configured by forming a metal material or a resin material in an annular shape. The head frame 202 is fitted to the outer peripheral portion of the shell 203 while holding the outer edge portion of the head 201. In this case, the head frame 202 is pressed by the hoop 212 on the annular upper surface.

  The shell 203 is a component that supports the head 201 and the tapping sensors 205a to 205c, and is configured by forming a metal material, a resin material, or wood into a cylindrical shape. One end (upper side in the figure) of the shell 203 is closed by the head 201, and the other end (lower side in the figure) is open. Thus, in the head 201, the surface exposed to the outside of the shell 203 constitutes the striking surface 201a, and the surface facing the inside of the shell 203 constitutes the back surface 201b. A sensor support 204 is provided on the inner peripheral surface of the shell 203.

  As shown in FIG. 10, the sensor support 204 is a part for supporting the tapping sensors 205a to 205c at positions adjacent to the back surface 201b of the head 101, and the inner peripheral surface of the shell 203 for each tapping sensor 205a to 205c. It is comprised with the metal plate which protrudes toward a radial direction inner side. In this case, the sensor support 204 is attached to the inner peripheral surface of the shell 203 with an adhesive or a screw (not shown) at a position where the sensor pressing body 206 of the tapping sensors 205a to 205c contacts the head 201. Tapping sensors 205a to 205c are provided on the upper surfaces of the three sensor supports 204, respectively.

  Like the tapping sensors 104a to 104c, the tapping sensors 205a to 205c are detectors composed of piezo elements that detect the vibration of the head 201, and signal processing (not shown) including detection signals composed of electrical signals corresponding to the vibration of the head 201 is performed. Output to the device. The signal processing device is a sound source provided separately from the electronic percussion instrument 200, and is connected to an external speaker (not shown).

  The three tapping sensors 205a to 205c are equally arranged in the circumferential direction around the center of the circular head 201 in plan view, and are attached to the sensor support 204 by a double-sided adhesive tape (not shown). A sensor pressing body 206 is provided on each of the tapping sensors 205a to 205c.

  The sensor pressing body 206 is a component for pressing the tapping sensors 205a to 205c according to the bending deformation of the head 201, and is configured by forming an elastic material in a cylindrical shape. More specifically, the sensor pressing body 206 is formed in a tapered shape in which the outer diameter gradually decreases from the tapping sensor 205a to 205c side toward the head 201 side. In this embodiment, each sensor pressing body 206 is formed of a rubber material, and is fixed to each tapping sensor 205a to 205c with a double-sided tape or an adhesive (not shown). In FIG. 9, the sensor support 204 and the sensor pressing body 206 are indicated by broken lines.

  These tapping sensors 205a to 205c are electrically connected by an output signal line 207 and a connecting signal line 210 as shown in FIG. Similarly to the output signal line 106, the output signal line 207 is an electric wire for electrically connecting any two tapping sensors 205a to 205c of the three tapping sensors 205a to 205c and the signal processing device. . In the present embodiment, the output signal line 207 is provided for each of the two tapping sensors 205a and 205c. The ends of the output signal lines 207 opposite to the tapping sensors 205a and 205c are connected to the printed wiring board 209a of the output terminal 209 via the connector 208 similar to the connector 107, respectively.

  Similarly to the connection signal line 108, the connection signal line 210 is provided separately from the output signal line 207, and all the tapping sensors 205 a to 205 c are provided between the two tapping sensors 205 a and 205 c to which the output signal line 207 is connected. Is an electric wire for connecting the cables in sequence. In the present embodiment, the connecting signal line 210 electrically connects the tapping sensor 205a and the tapping sensor 205b and electrically connects the tapping sensor 205b and the tapping sensor 205c. The tapping sensors 205a to 205c are sequentially connected to the 205c.

  In this case, each connection signal line 210 connects the positive electrodes and the negative electrodes of the tapping sensors 205a to 205c to each other in the same manner as the connection signal lines 108. Thereby, the tapping sensors 205a to 205c are connected in a ring by the output signal line 207, the connection signal line 210, and the printed wiring board 209a.

  As shown in FIG. 5, the output signal line 207 and the connection signal line 210 are connected to the outer edges of the tapping sensors 205a to 205c through soldering or the like, and are connected to the tapping sensors 205a to 205c. Are connected to opposite sides through the centers of the tapping sensors 205a to 205c. In the present embodiment, the output signal line 207 (or connection signal line 210) is a connection point of the output signal line 207 (or connection signal line 210) in the tapping sensors 205a to 205c with the center O of the tapping sensors 205a to 205c as the center. A connection point P2 of the connection signal line 210 (or output signal line 207) is formed in a region E of 135 ° clockwise from P1 and 90 ° of the region of 135 ° counterclockwise. In FIG. 10, the output signal line 207 and the connection signal line 210 are not shown.

  On the other hand, a lug 211 is provided on the outer peripheral surface of the shell 203. The lug 211 is a component for pressing the hoop 212 against the upper surface of the head frame 202, and is provided in a state of protruding on the outer peripheral surface of the shell 203. More specifically, the lug 211 is constituted by a metal block body extending in the axial direction of the shell 203, and a female screw (not shown) is provided on an end surface of the block body on the head frame 202 side (the upper side in the drawing). Is formed.

  The lug 211 fixedly supports the hoop 212 by a tension bolt 213 passing through the hoop 212 being screwed into the female screw. A plurality of lugs 211 are provided along the circumferential direction of the shell 203. In the present embodiment, six lugs 211 are formed at substantially equal intervals along the circumferential direction of the shell 203.

  The hoop 212 is a component for pushing the upper surface of the head frame 202 to stretch the head 201 on the shell 203, and is configured by forming a metal material into a stepped cylindrical shape. One end (upper side in the drawing) of the hoop 212 protrudes from the upper end of the shell 203 on which the head 201 is stretched, and the other end (lower side in the drawing) projects outward in the radial direction. It is formed in a cylindrical shape protruding from the lower end of 202. The hoop 212 is attached to the lug 211 via a tension bolt 213 at a portion protruding outward in the radial direction on the other end side.

  The tension bolt 213 is a component for pressing the hoop 212 against the upper surface of the head frame 202, and is configured by a bolt having a male screw formed on the outer periphery of a metal shaft. The tension bolt 213 is fastened to the female screw of the lug 211 in a state where the tension bolt 213 penetrates a portion where the outer diameter of the hoop 212 protrudes. As a result, the head 201 is pressed against the end of the shell 203 by the head frame 202 being pulled toward the lug 211 and is stretched into a flat film.

(Operation of electronic percussion instrument 200)
Next, the operation of the thus configured electronic percussion instrument 200 will be described. First, the performer electrically connects the output terminal 209 and the signal processing device of the electronic percussion instrument 200 via a cable (not shown) so that the electronic percussion instrument 200 can be played.

  Next, the performer plays the electronic percussion instrument 200. Specifically, the performer strikes the upper surface of the head 201 using a stick. Accordingly, each of the tapping sensors 205a to 205c outputs a detection signal corresponding to the vibration propagated through the head 201 and the sensor pressing body 206 directly to the output signal line 207 or indirectly through the connection signal line 210. Output to line 207. The detection signal transmitted to the output signal line 207 is an electrical sum signal (a sum signal of vibration waveforms) of the detection signals respectively output from the tapping sensors 104a to 104c on the printed wiring board 209a of the output terminal 209 via the connector 208. ) And output to the signal processing device. Accordingly, the signal processing device generates a musical sound signal representing a musical sound based on the detection signal composed of the sum signal input via the output signal line 207 and outputs the musical sound signal to an external speaker. As a result, the electronic percussion instrument 200 can output a musical sound according to the performance operation of the performer from the external speaker.

  On the other hand, when the electronic percussion instrument 200 is played, the electronic percussion instrument 200 is disconnected at one of the output signal line 207 or the connection signal line 210 between the tapping sensors 205a to 205c, as in the electronic percussion instrument 100. Even so, the performance can be continued without any trouble (see FIGS. 6 and 7). Therefore, in the electronic percussion instrument 200, for example, when the connection signal line 210 between the tapping sensor 205b and the tapping sensor 205c is disconnected, the detection signal of the tapping sensor 205b is a connection signal that connects the tapping sensor 205b and the tapping sensor 205a. The signal is transmitted to the signal processing device via the line 210, the tapping sensor 205a and the output signal line 207.

  As can be understood from the above description of the operation, according to the second embodiment, as in the first embodiment, the electronic percussion instrument 200 includes two tapping sensors 205a and 205c among the three tapping sensors 205a to 205c. In addition, the output signal line 207 connected to the signal processing device is connected to each other, and all the tapping sensors 205a to 205c are sequentially connected by the connecting signal line 210 between the two tapping sensors 205a and 205c. Even when the disconnection occurs at one of the output signal line 207 and the connection signal line 210, the detection signal is transmitted to the signal processing device via one of the two output signal lines 207. Therefore, according to the electronic percussion instrument 200 according to the present invention, the reliability of the signal line with respect to the signal processing device can be improved, and the sound generation accuracy and sound quality based on the detection signal can be improved. Also, according to the electronic percussion instrument 200, efficient wiring can be achieved compared to a wiring structure using the first signal line 410 and the second signal line 420 described later, and the configuration of the electronic percussion instrument can be reduced in weight and simplified. Can do.

  Further, the implementation of the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the object of the present invention.

  For example, in each of the above embodiments, the tapping sensors 104a to 104c and 205a to 205c are configured to detect vibration by indirectly contacting the heads 101 and 201 via the base body 102 and the sensor pressing body 206. Configured. However, the tapping sensors 104a to 104c and 205a to 205c may be configured to detect vibration by directly contacting the heads 101 and 201.

  In each of the above embodiments, the tapping sensors 104a to 104c and 205a to 205c are configured with detectors that detect vibrations of the heads 101 and 201. However, the tapping sensors 104a to 104c and 205a to 205c may be configured by a detector that detects at least one of vibrations of the heads 101 and 201 and pressure changes. Therefore, the tapping sensors 104a to 104c and 205a to 205c can be constituted by detectors that detect pressure changes of the heads 101 and 201.

  In the above embodiments, the electronic percussion instruments 100 and 200 are each provided with three tapping sensors 104a to 104c and 205a to 205c. However, the electronic percussion instruments 100 and 200 may be configured to include at least two or more tapping sensors. Therefore, the electronic percussion instruments 100 and 200 can be configured to include two tapping sensors 104a, 104b, 205a, and 205b, for example, as shown in FIG.

  In this case, the output signal lines 106 and 207 are connected to the same polarity in the two tapping sensors 104a, 104b, 205a, and 205b, and the connecting signal lines 108 and 210 are connected to the tapping sensors 104a, 104b, 205a, and 205b in the same polarity. Connect with each other. 11 schematically shows the positional relationship of the tapping sensors 104a, 104b, 205a, and 205b, and the lengths of the output signal lines 106 and 207 and the connection signal line 108 according to the shape of the heads 101 and 201. Of course, it is determined appropriately.

  Further, in each of the above embodiments, the tapping sensors 104a to 104c and 205a to 205c are equally arranged in the circumferential direction with the central portion of the heads 101 and 201 as the center. However, the tapping sensors 104a to 104c and 205a to 205c only need to be able to detect the vibrations of the heads 101 and 201. Therefore, the tapping sensors 104a to 104c and 205a to 205c are not necessarily arranged evenly, and may be arranged unevenly. .

  In each of the above embodiments, the output signal lines 106 and 207 and the connection signal lines 108 and 210 are connected to the tapping sensors 104a to 104c and 205a to 205c via the center O of the tapping sensors 104a to 104c and 205a to 205c. Each connected to the opposite side. Thereby, the tapping sensors 104a to 104c and 205a to 205c suppress the bias of deformation of the tapping sensors 104a to 104c and 205a to 205c due to the connection of the output signal lines 106 and 207 and the connection signal lines 108 and 210, and the tapping sensors 104a to 104c. The detection characteristics of 104c and 205a to 205c can be stabilized.

  However, since the output signal lines 106 and 207 and the connection signal lines 108 and 210 only need to be electrically connected to the tapping sensors 104a to 104c and 205a to 205c, it is not always necessary to connect them to the opposite side. Therefore, for example, the output signal lines 106 and 207 and the connection signal lines 108 and 210 may be connected adjacent to the tapping sensors 104a to 104c and 205a to 205c, or the tapping sensors 104a to 104c and 205a. You may make it connect to places (for example, center part) other than the outer edge part of -205c.

  Further, in each of the above embodiments, the output signal lines 106 and 207 and the connection signal lines 108 and 210 are respectively configured by electric wires. Thereby, the installation and assembly work of the tapping sensors 104a to 104c and 205a to 205c can be facilitated. However, the output signal lines 106 and 207 and the connection signal lines 108 and 210 can also be configured by a flexible cable or wiring on a printed wiring board.

  In each of the above embodiments, the output signal lines 106 and 207 extending from the tapping sensors 104a, 104c, 205a, and 205c are electrically and independently connected to the printed wiring boards 112a and 209a via the connectors 107 and 208, respectively. did. However, the output signal lines 106 and 207 can be directly connected to the printed wiring boards 112a and 209a through soldering or the like. The output signal lines 106 and 207 are connected by connecting the output signal lines 106 and 207 extending from the tapping sensors 104a and 205a and the output signal lines 106 and 207 extending from the tapping sensors 104c and 205c in the connectors 107 and 208, respectively. It can also be connected to the substrates 112a and 209a.

  The output signal lines 106 and 207 connect the output signal lines 106 and 207 extending from the tapping sensors 104a and 205a and the output signal lines 106 and 207 extending from the tapping sensors 104c and 205c, for example, as shown in FIG. The coupling signal line 300 extending to the connectors 107 and 208 can be provided. According to this, the number of wires extending to the connectors 107 and 208 can be reduced.

  The output signal lines 106 and 207 are indirectly connected to the signal processing device via the connectors 107 and 208, the output terminals 112 and 209, the output terminals 112 and 209, and a cable (not shown) connecting the signal processing device. Configured to connect. However, the output signal lines 106 and 207 may be configured to be directly connected to the signal processing device.

  In each of the above embodiments, the signal processing device is a sound source. However, the signal processing device can be configured by various devices that perform processing necessary to generate a musical tone using detection signals output from the tapping sensors 104a to 104c and 205a to 205c, respectively. Therefore, the signal processing device is configured by, for example, an A / D converter that converts detection signals output from the tapping sensors 104a to 104c and 205a to 205c into digital signals, or a MIDI converter that generates MIDI signals. Also.

  In the above embodiments, the output signal lines 106 and 207 are connected to two tapping sensors 104a, 104c, 205a, and 205c among the three tapping sensors 104a to 104c and 205a to 205c, respectively. Reference numerals 108 and 210 are connected so that all tapping sensors 104a to 104c and 205a to 205c are sequentially connected between the two tapping sensors 104a, 104c, 205a, and 205c.

  However, the first signal line 410 connected to all three tapping sensors 104a to 104c and 205a to 205c, respectively, and all three tapping sensors 104a to 104c and 205a to the first signal line 410. It is also possible to provide a second signal line 420 connected to each of 205c and connect these to the printed wiring board 450 of the output terminal 440 via the connector 430. In this case, the first signal line 410 and the second signal line 420 connect the positive electrodes and the negative electrodes of the tapping sensors 104a to 104c and 205a to 205c to each other (parallel connection).

  Even in this case, even when one of the first signal line 410 and the second signal line 420 is disconnected, the detection signal can be supplied to the signal processing device through the other. 13 schematically shows the positional relationship between the tapping sensors 104a to 104c and 205a to 205c and the lengths of the first signal line 410 and the second signal line 420 according to the shapes of the heads 101 and 201. Of course, it is determined appropriately.

  In each of the above embodiments, an electronic cymbal and an electronic drum are employed as the electronic percussion instruments 100 and 200. However, the electronic percussion instrument can be widely adopted as long as it is an electronic musical instrument that generates an electronic musical sound by detecting the impact of the head hit by the performer. Therefore, the electronic percussion instrument can be constituted by, for example, a so-called electronic hi-hat or electronic percussion in which two heads are arranged opposite to each other in the vertical direction and both of them are brought into contact or separated by a pedal operation.

O ... center of the tapping sensor, P1 ... connection point of the output signal line on the tapping sensor, P2 ... connection point of the connecting signal line on the tapping sensor, E ... formation region of the connecting point of the connecting signal line,
90 ... stand, 91a, 91b ... pressing tool,
DESCRIPTION OF SYMBOLS 100 ... Electronic percussion instrument, 101 ... Head, 102 ... Base body, 102a ... Mounting hole, 102b ... Back surface, 102c ... Mounting part, 103 ... Holding plate, 103a ... Mounting bolt, 104a, 104b, 104c ... Tapping sensor, 105 ... Both sides Tape 106: Output signal line 107 ... Connector 108: Connection signal line
110 ... Pad, 111 ... Back cover, 112 ... Output terminal, 112a ... Printed circuit board,
DESCRIPTION OF SYMBOLS 200 ... Electronic percussion instrument, 201 ... Head, 201a ... Strike surface, 201b ... Back surface, 202 ... Head frame, 203 ... Shell, 204 ... Sensor support, 205a-205c ... Tapping sensor, 206 ... Sensor pressing body, 207 ... Output signal 208, connector, 209, output terminal, 209a, printed wiring board, 210, connection signal line, 211, lug, 212, hoop, 213, tension bolt,
300: Coupled signal line,
410: first signal line, 420: second signal line, 430: connector, 440: printed wiring board.

Claims (5)

A head constituting a striking surface struck by the performer;
A plurality of tapping sensors that directly or indirectly contact the head at different positions and detect at least one of vibration and pressure caused by tapping the head and convert them into electrical detection signals;
2 comprising a pair of positive and negative electric wires extending from each positive electrode and each negative electrode of two tapping sensors of the plurality of tapping sensors and directly or indirectly connected to a signal processing device for processing the detection signal. Two output signal lines,
An electronic percussion instrument comprising a connecting signal line composed of a pair of positive and negative electric wires that sequentially connect the positive electrodes and negative electrodes of all the tapping sensors between the two output signal lines. The electronic percussion instrument according to claim 1, further comprising:
An electronic percussion instrument comprising a printed wiring board for electrically connecting the two output signal lines each formed of an electric wire. The electronic percussion instrument according to claim 2,
The electronic percussion instrument, wherein the two output signal lines are connected to the printed wiring board via a connector. The electronic percussion instrument according to any one of claims 1 to 3,
The plurality of tapping sensors are
An electronic percussion instrument, wherein the electronic percussion instrument is equally arranged around a central portion of the head in plan view. The electronic percussion instrument according to any one of claims 1 to 4,
The tapping sensor is composed of a plate-like piezoelectric element,
The output signal line and the connection signal line are:
An electronic percussion instrument, wherein the electronic percussion instrument is connected to opposite sides through the center of the tapping sensor.

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