JP2002207481A - Electronic pad - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic pad used as an electronic percussion instrument permitting muffling to muffling operation speedier than conventional. SOLUTION: An operation sensor for detecting only muffling operation is arranged in a position avoiding percussion plane and positions responding to the percussion against the outer peripheral edge of the percussion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an electronic pad used as an electronic percussion instrument.

[0002]

2. Description of the Related Art In recent years, electronic percussion instruments simulating percussion instruments such as acoustic cymbals have been widely used.

In a percussion instrument such as an acoustic cymbal, a musical sound is generated by vibrating the percussion surface due to percussion of the percussion surface and the perimeter of the percussion surface.
In an electronic percussion instrument, a striking surface is hit with a striking sensor on the striking surface, and a striking surface of an electronic pad equipped with a sheet sensor or the like at the periphery of the striking surface. Is pronounced.

[0004] The silencing operation is performed by pinching the periphery of the striking surface with a finger, similarly to the silencing operation in an acoustic cymbal or the like. In a case of an acoustic cymbal or the like, the silencing operation of pinching the periphery of the striking surface with a finger stops the vibration of the striking surface as a source of sound generation, and the silencing operation of the electronic percussion instrument is performed by a sheet sensor provided on the outer peripheral edge. To apply pressure to
When the pressure is continuously applied to the sheet sensor for a certain period of time or more, it is recognized that the mute operation is being performed.

[0005]

As described above, in the case of the conventional electronic percussion instrument, the player has a finger on the perimeter of the percussion surface so as to mute the musical sound being produced. Even if pressure is detected by the sheet sensor,
Since the pressure is also detected by the impact on the perimeter of the striking surface, the sheet sensor requires a certain time or more to determine whether the pressure is due to the silencing operation or the percussion on the perimeter of the striking surface. It is necessary to determine whether or not to continue, which causes a problem that actual silencing for the silencing operation is delayed.

SUMMARY OF THE INVENTION In view of the above circumstances, it is an object of the present invention to provide an electronic pad which can suppress a delay in actual silencing for a silencing operation.

[0007]

An electronic pad according to the present invention which achieves the above object is an electronic pad which receives an impact on an upper surface and detects and outputs the impact. A cover that covers an upper surface of the frame, a hit sensor that detects a hit transmitted to the first frame via the cover, and a hit sensor that is disposed on a lower surface of the first frame. And an operation sensor for detecting an operation.

The electronic pad of the present invention is provided with an operation sensor on the lower surface of the peripheral portion, which is hardly hit in a normal performance, for detecting only the operation of the player's impact and operation. Operation can be instantly linked to silence.

Here, the electronic pad of the present invention includes the first pad.
The first frame is supported from below by supporting the frame from below and having a mounting hole vertically penetrated in the center, and a pole of a stand having a pole for supporting the electronic pad is inserted into the mounting hole and supported by the pole. It is preferable to provide a second frame made of a soft material as compared with the second frame.

As described above, the first frame is supported from below by the second frame, which is made of a softer material than the first frame, and the second frame is fixed to the pole of the stand. The frame is free from being fixed to the stand, and the vibration generated in the first frame propagates smoothly. For this reason, the impact sensor provided in the first frame can accurately detect the vibration caused by the impact.

Further, in the electronic pad according to the present invention, the second frame has a wedge-shaped recess extending in a predetermined direction around the mounting hole on the lower surface of the second frame. The concave portion has an insertion hole in the center and has a top surface protruding in a wedge shape with a peak extending in a predetermined direction, and the pole is inserted into the insertion hole and is fitted or loosely fitted to a detent member fixed to the pole. It is preferable that it is performed.

[0012] The second frame has a recess around the mounting hole on the lower surface thereof, which is fitted or loosely fitted with a rotation-stopping member fixed to the pole. , The rotation of the electronic pad about the pole as a rotation axis is prevented. For this reason,
The player hits within a certain range of the hitting surface of the electronic pad. Thereby, the arrangement range of the operation sensor in the electronic pad can be limited, and the manufacturing cost can be reduced. In addition, it is possible to prevent the connected cord from being entangled with the pole due to the rotation of the electronic pad and being pulled by the pole.

In particular, when the rotation stopping member is loosely fitted in the recess around the mounting hole on the lower surface of the second frame, the electronic pad swings while the rotation is prevented. In this case, the player can play with a feeling closer to that of an acoustic cymbal.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described.

FIG. 1 is a perspective view of an electronic pad 1 used as an electronic cymbal according to a first embodiment of the present invention.

The electronic pad 1 shown in FIG.
A cup portion 30 that surrounds the central opening 1a and has a dome-shaped raised shape, an edge portion 32 at the outer peripheral edge, and a bow portion 31 in the middle, which surrounds the central opening 1a and outputs different sound quality depending on the part to be hit. And can be divided into

The upper surface of the electronic pad 1 is covered by a cover 2. As a material of the cover 2, rubber, an elastomer which is a material having both elasticity, which is an advantage of rubber, and productivity, which is an advantage of plastic, is used.

The upper surface of the cover 2 is subjected to concentric concave and convex processing. By this processing, for example, the groove width is 2
mm, a pitch of 4 mm (2 mm between grooves) and a depth of 0.1 mm are provided on the upper surface of the cover 2.

The upper surface of the cover 2 is coated with a rubber primer (reactive surface modification material, scientifically-reactive surface treatment material) or the like by dipping, brushing, spraying or the like. As a result, the friction coefficient of the surface is reduced and the wear resistance is improved. As a result, the sliding of the stick is similar to that of hitting a metal acoustic cymbal, and the wear of the rubber when the stick is hit for a long time is reduced. Note that the cover 2 may be formed of a material that has the same effect as the surface treatment and is softer than the first frame 3 described later. The surface treatment such as the application of the rubber primer is performed by a sliding portion 2b on the back surface of the outer peripheral edge 2a of the cover 2 which pushes the edge upper sheet sensor 7 and a portion which pushes the edge lower sheet sensor 6, which will be described later with reference to FIG. It is also applied to prevent wear. With this configuration, the upper surface of the electronic pad 1 can obtain a good jump of the stick.

In the opening 1a at the center of the electronic pad 1 shown in FIG. 1, a screw portion 10a of a pole 10 for supporting the electronic pad 1 from below, and the screw portion 10a,
A wing nut 13, a metal washer 12, and a felt washer 11 screwed to the wing nut are shown.

FIG. 2 is a sectional view of the electronic pad 1 taken along line AA of FIG.

FIG. 2B is an enlarged view of the vicinity of the center of FIG. 2A from which the pole 10, the wing nut 13, the metal washer 12, and the felt washer 11 are removed for convenience.

The first frame 3 is made of a hard material and has an opening 3c at the center. The upper surface of the first frame 3 and the lower side of the peripheral portion are covered with the cover 2 except for the upper surface of the central opening 3c. ABS, polycarbonate, or the like is used as the material of the first frame 3.

The first frame 3 has, on its outer edge, an outer peripheral edge 3b having an annular upper surface that is lower than the upper surface of the central opening 3c by a step 3a.

The outer peripheral edge portion 2a of the cover 2 which is in contact with the outer peripheral edge portion 3b of the first frame 3 is formed thicker than the other portion by the step 3a. That is, the upper surface of the electronic pad 1 is finished in a shape that does not make the user feel the presence of the step 3a.

Since the outer peripheral edge 2a is formed outside the outer peripheral edge 3b of the first frame 3,
The edge portion 32 is easily deformed when hit. Thereby, it is possible to reproduce a feeling that the acoustic cymbal is deformed when the edge portion is hit and absorbs an impact.

FIG. 2B shows a second frame 4. The second frame 4 has a head 4 projecting upward from a central opening 3 c of the first frame 3.
a, shoulder 4 for supporting the lower edge of opening 3c from below
b, and an arm 4c that supports the lower surface of the portion of the first frame 3 corresponding to the bow 31 in FIG. 1 from below.

In the center of the head 4a of the second frame 4, FIG.
A mounting hole 4d penetrating up and down as shown in FIG. A wedge-shaped recessed portion 4e, which is fitted with a rotation stopping member 9 described later and extends in a predetermined direction, around a mounting hole 4d on the central lower surface of the head 4a of the second frame 4 is formed. Is provided. The second frame 4 is made of a material softer than the material of the first frame 3 such as rubber.

Further, FIG. 2 shows the piezoelectric sensor 5 which is covered by the arm 4c of the second frame 4 on the lower surface of the first frame 3 and is in contact with the position on the player side. The piezoelectric sensor 5 detects a strike on the strike surface of the electronic pad 1 and the periphery of the strike surface.

In FIG. 2, a piezoelectric sensor 5, which will be described later,
Edge upper sheet sensor 7, Edge lower sheet sensor 6
Further, the cup sheet sensor 8 is provided only on the half of the right half of FIG. 2 and is not provided on the left half of FIG. The electronic pad 1 is assumed to be hit only in the right half circumference, and these sensors are disposed only within the hit range. The rotation of the electronic pad 1 is prevented by fitting the concave portion 4e of the second frame 4 with the rotation stopping member 9, thereby limiting the hitting range.

Since the hitting range can be limited, the arrangement of the sensor outside the hitting range is omitted. As a result, manufacturing costs can be reduced.

Here, as described above, the second frame 4 is formed of a material such as rubber, which is softer than the first frame 3, and has a structure in which the first frame 3 is lifted by its shoulder 4b. Have. Therefore, this second frame 4
Will be fixed to the pole 10 of the stand, which will be described later, and the first frame 3 is escaped from being fixed to the stand.
The vibration generated in the first frame 3 propagates smoothly on the first frame 3. For this reason, the vibration generated in the first frame 3 by the impact on the striking surface and the periphery of the striking surface of the electronic pad 1 is efficiently detected by the piezoelectric sensor 5.

Further, the cover 2 extends under the outer peripheral edge 3b of the first frame 3, and the lower surface of the outer peripheral edge 3b of the first frame 3 and under the outer peripheral edge 3b. An edge lower sheet sensor 6 which is an example of an operation sensor according to the present invention is provided between the cover 2 and the cover 2 which is wrapped around the side.
Is provided. The edge lower sheet sensor 6 detects the pressure caused by the player's silencing operation, and does not detect the blow.

Further, an upper edge sheet sensor 7 is provided between the upper surface of the outer peripheral edge 3b of the first frame 3 and the cover 2 covering the upper surface of the outer peripheral edge 3b.

In the edge upper sheet sensor 7, FIG.
Is detected by the impact or the like on the outer peripheral edge 32 shown in FIG.

In addition, the central cup portion 3 of the electronic pad 1
A cup sheet sensor 8 is provided at a position where the base 30a of the “0” and the first frame 3 are close to each other, in contact with the upper surface of the first frame 3.

The cup portion 30 of the electronic pad 1 shown in a dome shape in FIG. 2 is formed by the cover 2 on which the core material 19 is integrally formed.

When the cup portion 30 is hit, the peripheral portion of the core member 19 presses the cup sheet sensor 8 via the inner surface of the peripheral portion of the cup portion 30 of the cover 2.

As a result, the cup sheet sensor 8
In, a blow to the cup portion 30 is detected.

As described above, the wedge-shaped recessed portion 4e having a valley extending in a predetermined direction is formed in the central lower surface of the head 4a of the second frame 4, while FIG.
As shown in (b), the detent member 9 has a wedge-shaped tip portion 9a fitted into the concave portion 4e and having a peak extending in a predetermined direction.

A pole 10 for supporting the electronic pad 1 from below is inserted into the center of the rotation stopping member 9.
It has an insertion hole 9b shown in FIG. This insertion hole 9b has a shape whose diameter once decreases in the middle from the bottom to the top.

On the other hand, the pole 10 has a tip portion 10b of a shape that fits into the insertion hole 9b, that is, a shape whose diameter decreases on the way to the tip. Detent member 9
Is fixed to the pole 10 by the fastener 15 shown in FIG. 3 in a state where the tip 10b of the pole 10 is inserted.

Further, a screw portion 10 a is provided at a very distal end of the pole 10. The screw portion 10 a protrudes above the upper surface of the head 4 a of the second frame 4, and Then, the head 4 a of the second frame 4, the felt washer 11, and the metal washer 12 are sandwiched and screwed with a wing nut 13, and the electronic pad 1 is fixed to the pole 10 by the wing nut 13.

That is, the electronic pad 1 is supported from below by the pawl 10 to which the rotation stopping member 9 having the front end 9a fitted into the recess 4e of the second frame 4 is fixed.

Here, the recess 4e of the second frame 4
And the tip 9a of the rotation stopping member 9 are fitted to each other, so that the rotation of the electronic pad 1 around the pole 10 as a rotation axis is prevented. Thus, it is possible to prevent a situation in which an output cable 14 of the electronic pad 1 described later is entangled with the pole 10 or pulled by the pole 10.

FIG. 3 is a sectional view of the electronic pad 1 taken along line BB of FIG.

FIG. 3 shows the fastener 15 for fixing the rotation stopper 9 to the pole 10 and the second frame 4.
Are fixed to the first frame 3.

In FIG. 3, the lower edge sheet sensor 6, the upper edge sheet sensor 7, and the cup sheet sensor 8 are disposed on both the left and right sides of the electronic pad 1. This is because the cross-sectional view shown in FIG. 3 is different from the cross-sectional view of FIG. 2 by 90 ° in cross-section, and shows a cross-section when the electronic pad 1 is viewed from the position of the player. That's why.

FIG. 3 shows output signals for transmitting the output signals from the piezoelectric sensor 5, the lower edge sheet sensor 6, the upper edge sheet sensor 7, and the cup sheet sensor 8 to a sound source device (not shown). A jack 18 and output cable 14 are shown.

The output jack 18 is provided in the space between the arm 4 c of the second frame 4 and the lower surface of the first frame 3, and is fixed to the second frame 4 via the output jack holder 17. Have been. This second frame 4
Is formed of a material such as rubber, which is softer than the first frame, as described above. Can be prevented from being damaged. The output jack 18 has two jacks,
That is, the first output jack 110 and the second output jack 1
20 (see FIG. 7), output signals from the above-described sensors are output from the first output jack 110 and the second output jack 120, and transmitted to a sound source device (not shown) via the output cable 14. You. In this embodiment, although the number of sensors and the number of terminals are different as described above, signals from each sensor can be transmitted to the sound source device. This will be described later.

FIG. 4 is a perspective view of the electronic pad 1 as viewed obliquely from below.

FIG. 4 shows the cover 2 wrapping around so as to surround the outer peripheral edge of the first frame 3 described above.

FIG. 4 shows a state in which the electronic pad 1 is supported by a pole 10 to which the rotation stopping member 9 is fixed.

As shown in FIG. 4, the second frame 4 is fixed to the lower surface of the first frame 3 at several places by screws 16.

FIG. 5 is a diagram conceptually showing the impact of the stick 20 on the central cup portion 30, the intermediate bow portion 31, and the outer peripheral edge portion 32 of the electronic pad 1 shown in FIG. 1, and FIG. FIG. 4 is a diagram conceptually illustrating a state in which a sound-muffling operation is performed by pinching the outer peripheral edge of the electronic pad 1 with a finger.

Here, when the electronic pad 1 is subjected to the striking and muffling operations shown in FIGS. 5 and 6, the piezoelectric sensor 5, the edge lower sheet sensor 6, the edge upper sheet sensor 7, and the piezoelectric sensor 5 shown in FIG. Vibration and pressure are detected by each sensor of the cup part sheet sensor 8. Output signals from these sensors are combined in a circuit shown in FIG.
The output is output from the output jack 18, that is, the first output jack 110 and the second output jack 120, and transmitted to the not-shown sound source device via the output cable 14.

In the sound source device, when the portions corresponding to the center cup portion 30, the intermediate bow portion 31, and the outer peripheral edge 32 on the acoustic cymbal shown in FIG. A typical tone of each part, pronounced by a cymbal, a so-called cup sound,
A tone sound simulating a bow sound and an edge sound is stored, and based on a combination of output signals transmitted via the output cable 14, the tone of the tone corresponding to the struck portion is generated or the tone is muted. Done.

Next, the correspondence between the output of each sensor, the striking position, and the silencing operation (choke at the edge portion) will be described. Table 1 shows the correspondence.

[0059]

[Table 1]

From the piezoelectric sensor 5, the cup portion 30 of FIG.
A signal is output when either the bow 31 or the edge 32 is hit, and remains off in the case of an edge choke. Further, the cup part sheet sensor 8 is turned on only when the cup part 30 is hit. The edge upper sheet sensor 7 remains off when the cup 30 and the bow 31 are played, and is turned on when the edge 32 is hit and when the edge is choked. Further, the edge lower sheet sensor 6 is turned on only in the case of the edge portion choke.

That is, the edge lower sheet sensor 6 does not respond to the impact, and detects only the operation of the edge portion choke on the periphery of the electronic pad 1.

FIG. 7 is a wiring diagram of a jack portion for transmitting an output signal from each sensor to a sound source.

Here, two terminals A 1 and A 2 connected to the first output jack 110 and a second output jack 120
Are shown as two terminals B1 and B2. An output signal from the piezoelectric sensor 5 is transmitted to both the terminal A1 and the terminal B1. Also, both the lower edge sheet sensor 6 and the cup sheet sensor 8 are connected to the terminal A2, but as shown in Table 1, both the lower edge sheet sensor 6 and the cup sheet sensor 8 are simultaneously turned on. When there is no such timing, and by observing the output of the piezoelectric sensor 5, it is possible to determine which of the lower edge sheet sensor 6 and the cup sheet sensor 8 is on. Therefore, the edge lower sheet sensor 6
The output signal from the cup sheet sensor 8 can be output from the terminal A2.

The terminal B2 of the second output jack 120
Is connected to the edge upper sheet sensor 7.

Table 2 shows the correspondence between the output of each terminal and the assigned sound.

[0066]

[Table 2]

Here, it is possible to connect only the first output jack 110 or only the second output jack 120 to the sound source device. When only the first output jack is connected, the cup sound and the bow sound are generated and silenced. When only the second output jack is connected, only the edge sound is generated and muted.

When there is an output of the piezoelectric sensor 5 from the terminal A1 of the first output jack 110 and no output from the terminal A2 of the first output jack 110, a bow sound is assigned as a sound to be emitted. Also, the first output jack 1
When there is an output from both the terminal A1 and the terminal A2, a cup sound is assigned. 1st output jack 1
No output from the piezoelectric sensor 5 from the terminal A1
When there is an output from the second (in this case, the edge lower sheet sensor 6 is turned on), the sound is muted.

The terminal B1 of the second output jack 120
When there is no output from the terminal B2 and there is no output from the terminal B2, no sound is produced and the sound is kept silent. When there is an output from both the terminal B1 and the terminal B2, an edge sound is produced. Further, there is no output from the terminal B1 and the terminal B2
, That is, when there is an output indicating that the upper edge sheet sensor 7 is ON, mute is performed. In this case, the piezoelectric sensor 5 is used without using the edge lower sheet sensor 6.
And the output of the edge upper sheet sensor 7, the operation for silencing (choke at the edge) can be immediately detected. However, in order to instantly detect the silencing operation (choke at the edge portion), the electronic pad 1 needs the edge lower sheet sensor 6 for detecting the chalk at the edge portion without detecting the impact.

As described above, when the cup portion 30 of the electronic pad 1 of FIG. 1 is hit, a signal is transmitted from each of the terminals A1, A2, and B1.
A cup sound is produced. Similarly, the intermediate bow portion 31
, A signal is transmitted from both the terminal A1 and the terminal B1, and the sound source device emits a bow sound. Also, when the outer peripheral edge 32 is hit,
Signals are transmitted from the terminals A1, B1, and B2, and the sound source device emits an edge sound.
As shown in Table 2, when an edge sound is generated,
At the same time, a bow sound is also generated, but the edge sound is often used as an accent, and the volume is set to be large. The bow sound is masked by this edge sound, and the edge sound is originally a bow sound. Since the sound includes the features of the sound, even if the bow sound overlaps with the edge sound, the influence can be almost ignored.

As shown in FIG. 6, the operation of pinching the peripheral edge of the striking surface of the electronic pad 1 with a finger (choke at the edge portion) causes the edge lower sheet sensor 6 and the edge lower sheet sensor 6 to move from both terminals A2 and B2. The signal of the edge upper sheet sensor 7 is transmitted, and the sound source device silences.

Further, this sound source device monitors not only the presence / absence of the output of the pressure sensor 5 but also the magnitude of the output signal thereof. When the above-mentioned sounds are generated, the magnitude of the output signal of the piezoelectric sensor is monitored. Produce at the volume corresponding to the sound. In general, a sheet sensor detects ON / OFF in the same manner as a switch. Compared with a conventional method of selecting a timbre after monitoring vibration due to a hit with a piezoelectric sensor or the like and determining a hit position, a sheet sensor is used. When the ON of the sheet sensor is monitored in combination with the above, the tone can be selected more quickly. In the present embodiment, a sheet sensor is used, and therefore, is used as an accent.
In other words, it is possible to cope with a sound such as a cup sound or an edge sound which requires rapid sounding in performance. in this case,
After promptly starting to produce the sound at a certain volume, an envelope process for adjusting the volume to a volume corresponding to the impact force is performed.

As described above, in the above-described embodiment, the sound of the tone corresponding to the struck portion is generated at a volume corresponding to the striking force by the striking of the striking surface and the periphery of the striking surface of the electronic pad 1, and the muffling shown in FIG. By the operation, the sound being generated is muted more quickly than before.

Here, even when only the first output jack 110 of the first output jack 110 and the second output jack 120 is connected to the tone generator, the lower portion of the edge disposed at a position avoiding the position that responds to the impact. By turning on the sheet sensor 6 by the mute operation, the player can mute the cup sound and the bow sound during sounding more quickly than before. Note that, when the sound source device generates an edge, control may be performed to suppress the generation of a bow sound.

FIG. 8 is a diagram showing a state in which the electronic pad 1 supported by the pole 10 is hit by the stick 20 and tilts.

The rotation stopping member 21 shown in FIG.
In comparison with the detent member 9 shown in FIG.
Furthermore, it has a sharp wedge shape. For this reason, the wedge shape of the distal end portion 21a of the rotation stopping member 21 is in a state of being loosely fitted without completely fitting with the concave portion 4e of the second frame 4, and easily received when hit as shown in FIG. You will lean.

As described above, several kinds of wedge-shaped detent members having different angles are prepared, and these detent members are selectively used according to the size and weight of the simulated acoustic cymbal. It is possible to adjust the degree of shaking due to the impact, so that it is possible to play with a feeling close to that of an acoustic cymbal. The degree of shaking can also be adjusted by the degree of tightening of the wing nut 13 of the screw portion 10a of the pole 10.

Alternatively, the rotation-stopping member is fixed to one kind of rotation-stopping member capable of swinging sufficiently, and the gap between the rotation-stopping member and the concave portion 4e of the second frame 4 is adjusted by a spacer or an adapter. In this way, it is possible to perform a performance similar to an acoustic cymbal to be simulated while preventing the rotation of the hitting surface.

The center axis of the vibration of the electronic pad 1 generated when the electronic pad 1 is hit is indicated by an arrow B- in FIG.
It will be present in that section when sectioned at B. Here, since the output jack 18 is arranged near the center axis of the swing, the vertical movement of the output cable 14 due to the swing is suppressed. Therefore, overload of the output cable 14 itself and a portion to which the output cable 14 is connected due to the weight of the output cable is prevented, and the life of the electronic pad 1 can be extended.

Next, a second embodiment of the present invention will be described.

FIG. 9 is a view showing an electronic pad 41 used as an electronic cymbal according to the second embodiment of the present invention.

FIG. 9 shows a frame 43 and a frame 43.
And a cover 42 that covers the upper surface of the frame 4.
In order to make it easier to see the later-described features of the cover 3, the cover 4
The left half of 2 has been removed.

An outer peripheral edge 43a similar to that of the electronic pad 1 is provided on the outer peripheral edge of the frame 43 of the electronic pad 41. The outer peripheral edge 43a has a portion 43b that is located outside the range of the player's hit. Has a shape cut off as shown.

A part 42b of the outer peripheral edge 42a of the cover 42 is in close contact with this part 43b,
A portion 42b of the cover 42 is formed in a shape in which a space portion corresponding to a part 43b of the frame 43 cut off is closed.

The electronic pad 41 is different from the electronic pad 1 shown in FIG. 1 in that two points, that is, a part of the outer peripheral part 43a of the frame 43 is cut off and a part of the peripheral part 42a of the cover 2 is changed in shape, are described above. Are only different and therefore
The head 4a and the insertion hole 4d of the second frame 4 projecting to the center, the cup sheet sensor 8 near the center, and the outer peripheral edge 43a of the frame 43 shown on the frame 43 in FIG. The same type as that shown in FIG. 2 is used as the edge upper sheet sensor 7 and the like. Although not shown in FIG. 9, an edge lower sheet sensor 6 is also provided on the lower surface of the outer peripheral edge 43a of the frame 43, similarly to the electronic pad 1 of FIG.

Arrows CC and DD in FIG. 9 correspond to FIG.
9 correspond to the arrows AA and BB in FIG. 9, and the upper edge sheet sensor 7, the lower edge sheet sensor 6, not shown, and the cup sheet sensor 8 in FIG. Are arranged in the same range as the arrangement range.

That is, these sensors correspond to the right half of FIG.
That is, they are arranged in a half circle from D to D in the lower right of FIG. 9 and are not arranged in a half circle from D to D in the upper left. For this reason, manufacturing costs are reduced by arranging the sensor only on the performer's half circumference.

Further, the outer peripheral edge 43 of the frame 43
By partially cutting off a, the shape becomes not a rotating body, and the balance of rigidity is lost. On the other hand, since the shape of the cover 2 is partially different as described above, the weight balance of the electronic pad 41 around the insertion hole 4d of the electronic pad 41 does not collapse, and the rigidity balance of the frame 43 is subtly balanced. Collapse, acoustic resonance will be suppressed,
In the electronic pad 41 of the second embodiment, the frame 4
Unnecessary vibration generated in 3 is further suppressed. And the arrangement of only one half of the sensor, this electronic pad 41
Is shifted from the center of the appearance of the electronic pad 41, that is, the insertion hole 4d in FIG. 2B. On the other hand, as in the electronic pad 1 shown in FIG. 1, the electronic pad 41 has a pole 10 (not shown) to which the rotation stop member 9 is fixed is inserted into the insertion hole 4d deviated from the center of gravity of the electronic pad 41 from below. Supported. For this reason, the weight balance of the electronic pad 41 around the insertion hole 4d of the electronic pad 41 is slightly broken, and the electronic pad 41 of the second embodiment is distorted.
In this case, unnecessary vibration generated in the cover 42 and the frame 43 is further suppressed.

[0089]

As described above, according to the present invention, the sound can be muted more quickly than in the prior art.

[Brief description of the drawings]

FIG. 1 is a perspective view of an electronic pad used as an electronic cymbal according to a first embodiment of the present invention.

FIG. 2 is an AA cross-sectional view of the electronic pad.

FIG. 3 is a sectional view taken along line BB of the electronic pad.

FIG. 4 is a perspective view of the electronic pad as viewed obliquely from below.

FIG. 5 is a diagram conceptually showing a state in which an electronic pad is hit.

FIG. 6 is a diagram conceptually showing a state in which a finger is placed on the outer peripheral edge of the electronic pad to perform a silencing operation.

FIG. 7 is a wiring diagram of a jack portion for transmitting an output signal from each sensor to a sound source.

FIG. 8 is a view showing a state in which an electronic pad using a rotation stop member having a sharper end than the rotation stop member of FIG. 1 is hit and tilted;

FIG. 9 shows a part of the outer peripheral edge of the frame cut off,
It is a figure showing the electronic pad of a 2nd embodiment in the state where the left half side of the cover which covers the upper surface of this frame was cut off.

[Explanation of symbols]

Reference Signs List 1 electronic pad 1a central opening of electronic pad 2 cover 2a peripheral edge of cover 2b sliding part of cover 3 first frame 3a step of outer peripheral edge of first frame 3b first peripheral outer edge of frame 3c first Opening at center of frame 4 Second frame 4a Head of second frame 4b Shoulder of second frame 4c Arm of second frame 4d Mounting hole at center of head of second frame 4e Second Recess around the mounting hole at the center lower surface of the head of the frame 5 Piezoelectric sensor 6 Edge lower sheet sensor 7 Edge upper sheet sensor 8 Cup part sheet sensor 9 Rotation stop member 9a Tip of rotation stop member 9b Insertion hole of rotation stop member Pole 10a Pole thread 10b Pole tip 11 Felt washer 12 Metal washer 13 Wing nut 14 Output cable Bull 15 Fastener 16 Screw 17 Output Jack Holder 18 Output Jack 19 Core Material 20 Stick 21 Rotation Stop Member with a Sharp Tip 21a Tip of a Rotation Stop Member with a Sharp Tip 30 Cup 30a Bottom of Cup 31 Bow 32 Edge portion 41 Electronic pad of second embodiment 42 Cover of electronic pad of second embodiment 42a Outer peripheral edge of cover of electronic pad of second embodiment 42b Outer peripheral edge of cover of electronic pad of second embodiment A portion 43 in contact with the cut portion of the frame 43 a frame 43a of the electronic pad according to the second embodiment 43a an outer peripheral portion 43b of the frame of the electronic pad according to the second embodiment 43b Cut-off portion 110 First output jack 120 Second output jack A1 Terminal A of the first output jack to which the output from the sensor is delivered A2 Terminal of the first output jack to which the output from the edge lower sheet sensor and the cup sheet sensor are delivered B1 Output from the piezoelectric sensor is delivered Terminal of the second output jack B2 Terminal of the second output jack to which the output from the edge upper sheet sensor is delivered

Claims (3)

[Claims] 1. An electronic pad that receives a strike on an upper surface and detects and outputs the strike, comprising: a first disc-shaped frame; a cover covering an upper surface of the first frame; An electronic device comprising: an impact sensor that detects an impact transmitted to one frame; and an operation sensor that is disposed on a lower surface of a peripheral portion of the first frame and detects an operation on the peripheral portion. pad. 2. A support for supporting the first frame from below, and having a mounting hole vertically penetrated in the center thereof, wherein the pole of a stand having a pole for supporting the electronic pad is inserted through the mounting hole. 2. The electronic pad according to claim 1, further comprising a second frame supported by a pole and made of a softer material than the first frame. 3. The second frame has a wedge-shaped recessed portion having a valley extending in a predetermined direction around the mounting hole on the lower surface of the second frame, and the recessed portion is provided at the center. It has an insertion hole, and the upper surface has a wedge-shaped protruding shape whose ridge extends in a predetermined direction. The pole is inserted through the insertion hole, and is fitted or loosely fitted to a detent member fixed to the pole. 3. The electronic pad according to claim 2, wherein: