JP2000047666A - Percussion type musical tone controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a percussion type musical tone controller which can obtain almost the same output with the same striking farce irrelevantly to the striking position, and to make a visual display corresponding to the striking style of a pad surface and to control plural musical tone elements. SOLUTION: A sensing unit 3 consists of a sensor fixed body 31 which is discoid and elastic, a radial pressing part 32 which is discoid and elastic, and a piezoelectric sensor 33. The sensor fixed body 31 and radial pressing part 32 are fixed at their center parts. The piezoelectric sensor 33 is fitted to the center part of the sensor fixed body 31. A elastic projection 25 is provided at the peripheral edge part of a pad skin body 2, which is fixed onto the radial pressing part 32 through a hole 32. The piezoelectric sensor 33 is elastically held by fixing the peripheral edge part of the sensor fixed body 31 in a pad housing part 1 of a top case 10. A movable contact 41 is formed at the lower end of the elastic projection 25 to constitute a switch and musical tone elements are controlled corresponding to the switch operation. A light emission body is provided at the peripheral edge of the pad skin body 2 and the light emission luminance is modulated according to variation in the distance between the light emission body and an LED light source.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pad body having a surface to be struck, a sensing unit for sensing a striking being connected to a pad skin to form a pad body, and a sensor of the sensing unit when a striking is applied to the pad body. The present invention relates to a percussion-type musical sound control device that generates a musical sound control signal in accordance with an output.

[0002]

2. Description of the Related Art Conventionally, as this type of apparatus, for example, Japanese Patent Application Laid-Open No. Hei 6-175661 or Japanese Patent Application Laid-Open No.
No. 6 discloses a technique disclosed in Japanese Patent Laid-Open Publication No. 6-206. JP-A-6-1756
No. 51 discloses a structure in which a piezo-type piezoelectric sensor is fixed to a pad plate which is fitted in a pad rubber (pad skin), and the pad plate and the base plate are joined to each other at the periphery of each plate via a cushion material. It has become. The vibration of the pad plate when the pad rubber is hit is detected by the piezoelectric sensor.

In Japanese Patent Application Laid-Open No. 9-297576, a pad plate is fixed to a pad skin, and the pad skin is fixed to a case by an elastic retainer on the periphery thereof, and is welded to the periphery of the pad plate. The stud holds the sensor plate, and the piezoelectric plate is fixed to the sensor plate. The impact applied to the pad skin is transmitted to the sensor plate via the pad plate and the stud, and the vibration of the sensor plate is detected by the piezoelectric sensor.

In general, in this type of apparatus, a piezo-type piezoelectric sensor as in the above two publications is mainly used in consideration of the expressiveness (dynamic range) of a sound volume. The reason is that the piezo-type piezoelectric sensor does not saturate with respect to the impact of fortissimo (a phenomenon of an output saturation state appears), and can make a difference in volume with respect to the impact of forte and fortissimo. This is because piezo-type piezoelectric sensors are mainstream.

[0005]

However, Japanese Patent Application Laid-Open No.
In the device disclosed in Japanese Patent Publication No. 1755651, the pad plate and the base plate have a structure in which the pad plate and the base plate are joined via a cushion material at the periphery thereof, so that the sensitivity becomes non-uniform depending on the struck portion. For example, the sensitivity is low near immediately above the cushion material, and the sensitivity is better in the central portion than in the peripheral edge of the pad rubber. Also, JP-A-9-297
The device disclosed in JP-A-576-576 is improved so as not to make the sensitivity nonuniform as much as possible. It is structured to be fixed to the case at the part. Furthermore, the mutual positional relationship between the three studs (1a, 1b, 1c) holding the sensor plate and the four elastic holders (5a, 5b, 5c, 5d) fixing the pad skin is not uniform. . For this reason, hitting anywhere is insufficient to obtain a substantially uniform sensitivity.

Therefore, there is a demand for a device capable of obtaining the same level of output with the same striking force regardless of where the striking position is applied to the pad surface.

On the other hand, the present inventor has proposed that a light emitting means is provided on a pad surface in an electronic drum or the like, and the light emitting position and the light emitting intensity are controlled in accordance with the hitting position, hitting intensity, etc. of the pad surface ( Japanese Patent Application No. 10-66090). In this way, visual information on the hit can be confirmed, and the position of the hit and the strength of the hit can be easily checked by the user or the teacher, which is useful for practice and contributes to quick progress. Furthermore, during live performances, the user can visually recognize his or her own playing style, especially the manner of hitting, so that the performance that impresses the audience is facilitated.

However, as described above, the piezo-type piezoelectric sensor is suitable for detecting the striking level, but is not suitable for detecting the striking position with respect to the pad. It only stops controlling the volume according to the level of the hit.

Further, in this case, if a structure of a pad body such as the above-mentioned conventional percussion instrument type tone control device is employed, it is possible to obtain information according to the manner of hitting the pad surface even if the hitting level can be detected. However, development from the viewpoint of controlling light emission and the like while maintaining a sound form close to the ideal has been still lagging behind.

The output of the piezoelectric sensor is generally used to control, for example, the sound volume, which is one of the basic elements of a musical tone. However, it is possible to control other musical tone elements in accordance with the mode of hitting. If possible, the variation of musical sounds will be rich.

However, as described above, the piezo type piezoelectric sensor is suitable for detecting the striking level, but is not suitable for detecting the striking position with respect to the pad. It only stops controlling the volume according to the level of the hit. In addition, Japanese Patent Laid-Open No. 6-1
The device disclosed in Japanese Patent No. 75651 has a structure in which the pad plate is joined to the periphery of the pad plate via a cushion material. It has become. For this reason, any structure is not suitable for detecting a hitting position and a hitting mode with respect to the pad skin, and obtaining information for controlling a musical sound element.

It should be noted that if the pad surface is caused to emit light due to the striking level detected by the piezo-type piezoelectric sensor, or if only tone elements other than the volume are controlled, for example, there is a problem of lack of variation and fun.

The present invention provides a percussion-type musical tone control device capable of obtaining the same level of output with the same striking force, no matter where the striking position is applied to the pad surface. It is an object of the present invention to provide a percussion instrument type tone control device suitable for controlling visual information and a plurality of tone elements.

[0014]

According to a first aspect of the present invention, there is provided a percussion-instrument-type musical tone control apparatus according to the present invention, wherein a sensing unit for sensing an impact is coupled to a pad skin having an impact surface. And a pad body, and a percussion instrument type tone control device for generating a tone control signal in accordance with a sensor output from the sensing unit.
The sensing unit is provided with a piezoelectric sensor at the radial center of the radial pressurizing unit so that a response commensurate with the input level is obtained even if a vibration input is input from any external direction. The radially pressurized portion is fixed to the pad skin at a peripheral portion thereof.

According to the percussion-instrument-type musical sound control apparatus of the first aspect, the striking force applied to the pad skin is concentrated on the central portion of the radial pressing portion and transmits the force to the piezoelectric sensor. Therefore, when a shock is applied to the pad skin body, a response commensurate with the input level is made even if a vibration input is input from any external direction. The same output can be obtained with the same striking force.

Further, since the radial pressing portion fixed to the pad skin has a structure in which a vibration input is applied to the piezoelectric sensor at the center in the radial direction, a striking mode is applied near the periphery of the pad skin. A configuration for obtaining corresponding information and information for controlling musical tone elements can be provided. Further, since the piezoelectric sensor is floated with respect to the fixed portion by an elastic body, the hit surface is displaced with respect to the fixed portion by hitting the hit surface of the pad skin. Therefore, based on the change in the distance between the hit surface and the fixed portion, it is possible to obtain information according to the hitting mode and control the musical sound.

According to a second aspect of the present invention, there is provided a percussion-instrument-type musical tone control apparatus, wherein a pad body having a hit surface is connected to a sensing unit for sensing a hit to form a pad body, and a sensor output from the sensing unit is formed. Percussion instrument type tone control device for generating a tone control signal in accordance with
By hitting the hit surface, the hit surface can be displaced with respect to the fixed portion. By driving the hit surface of the pad skin, at least a musical sound is generated by the sensor output of the sensing unit. And the distance between the hit surface and the fixed portion is changed, and based on the change, information corresponding to the hitting mode of the pad body is visually displayed. I do. Note that driving means performing impact, pressing, and the like.

According to the percussion-instrument-type musical tone control apparatus of the second aspect, one of the basic elements of the musical tone such as the volume level is controlled by the sensor output of the sensing unit. Further, based on the change in the distance between the struck surface and the fixed portion, information corresponding to the striking mode of the pad body is visually displayed. For example, since the change in the distance between the hit surface and the fixed portion differs between when the ball is hit hard and when the ball is hit lightly, the difference in the change can be reflected on the visual display. In this way, since the hitting mode is visually displayed, it is useful for practice and contributes to quick progress. Furthermore, during live performances, the user can visually recognize his or her own playing style, especially the manner of hitting, so that the performance that impresses the audience is facilitated.

According to a third aspect of the present invention, there is provided a percussion-instrument-type musical tone control device, wherein a pad sensing body is connected to a pad skin having a hitting surface to form a pad body, and a sensor output from the sensing unit is formed. Percussion instrument type tone control device for generating a tone control signal in accordance with
By hitting the hit surface, the hit surface can be displaced with respect to the fixed portion. By driving the hit surface of the pad skin, at least a musical sound is generated by the sensor output of the sensing unit. Controlling one of the basic elements and obtaining information on a change in the distance between the hit surface and the fixed portion, and controlling tone elements other than the basic element for the hit based on the change information. Features.

According to the percussion-instrument-type musical tone control device of the third aspect, one of the basic elements such as the volume is controlled by the sensor output of the sensing unit.
Also, according to the change information of the distance between the hit surface and the fixed portion,
Tone elements other than the above basic elements for hitting are controlled. Therefore, variations of musical tones can be enriched.

According to a fourth aspect of the present invention, there is provided a percussion-instrument-type musical sound control apparatus, wherein a pad sensing body is connected to a pad skin having a hitting surface to form a pad body, and a sensor output from the sensing unit is formed. Percussion instrument type tone control device for generating a tone control signal in accordance with
By hitting the hit surface, the hit surface can be displaced with respect to the fixed portion. By driving the hit surface of the pad skin, at least a musical sound is generated by the sensor output of the sensing unit. Control information on the distance between the hit surface and the fixed portion, and controlling the tone elements other than the basic element for the hit based on the change information, It is characterized in that information corresponding to the hitting mode of the pad body is visually displayed based on the change.

According to the percussion-instrument-type musical tone control device of the fourth aspect configured as described above, the effects of both the second and third aspects can be obtained.

According to a fifth aspect of the present invention, there is provided a percussion-instrument-type musical sound control apparatus, wherein a pad sensing body is connected to a pad skin having a hitting surface to form a pad body, and a sensor output from the sensing unit is formed. Percussion instrument type tone control device for generating a tone control signal in accordance with
The sensing unit includes a sensor floated by an elastic body with respect to a fixed portion, and a radial pressing portion for pressing the sensor, and the radial pressing portion is fixed at its peripheral edge by a fixing means. The fixing means comprises an elastic projection integrally formed with the pad skin and a hole formed in the radial pressing portion corresponding to the elastic projection. It is characterized in that it is used as a stopper when hitting hard.

According to the percussion-instrument-type musical sound control apparatus of the fifth aspect, when the pad body is hit, the pad skin and the radial pressing portion are stopped at predetermined positions by the stopper. You. Since the elastic projections serving as fixing means for fixing the pad skin and the radial pressing portion also serve as the stopper, the number of parts can be reduced and the number of assembling steps can be reduced.

According to a sixth aspect of the present invention, there is provided a percussion-instrument-type musical sound control apparatus, wherein a pad body having a hit surface is connected to a sensing unit for sensing a hit to form a pad body, and a sensor output from the sensing unit is formed. Percussion instrument type tone control device for generating a tone control signal in accordance with
The sensing unit includes a sensor floated by an elastic body with respect to a fixed portion, and a radial pressing portion for pressing the sensor, and the radial pressing portion is fixed at its peripheral edge by a fixing means. The fixing means comprises an elastic projection integrally formed with the pad skin and a hole formed in the radial pressing portion corresponding to the elastic projection. The switch is a movable contact.

According to the percussion-instrument-type musical tone control device of the sixth aspect, the fixed contact is formed at a position corresponding to the elastic projection in the fixed portion, and the switch is formed together with the movable contact of the elastic projection. By operating this switch, it is possible to control a tone element, a light emission state of a visual display, and the like. In addition, the number of parts can be reduced as compared with the case where such a switch is separately provided, and the number of assembling steps can be reduced.

According to a seventh aspect of the present invention, there is provided a percussion-instrument-type musical sound control apparatus, wherein a pad sensing body is connected to a pad skin having a hitting surface to form a pad body, and a sensor output from the sensing unit is formed. Percussion instrument type tone control device for generating a tone control signal in accordance with
The sensing unit includes a sensor floated by an elastic body with respect to a fixed portion, and a radial pressing portion for pressing the sensor, and the radial pressing portion is fixed at its peripheral edge by a fixing means. The fixing means comprises an elastic projection integrally formed with the pad skin and a hole formed in the radial pressing portion corresponding to the elastic projection. It is characterized by being used as a movable contact of the switch and as a stopper at the time of strong hit.

According to the percussion-instrument-type musical sound control device of the seventh aspect configured as described above, the effects of both the fifth and sixth aspects can be obtained.

[0029]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 5 is a top view of an electronic drum device to which the percussion instrument type tone control device of the embodiment is applied;
The upper surface case 10 as a fixing portion is provided with four pad bodies 20 forming four large hit surfaces and three pad bodies 20 'forming smaller hit surfaces. Sound emission grooves 30 of the speaker are formed on the left and right sides of the upper case 10 so that stereo sound can be generated. Also,
On the player side of the upper case 10, an operation panel 40 provided with switches, dials, indicators and the like is arranged.
Further, a concave portion 50 is provided below the main body as shown by a broken line, and a connection terminal for connecting a lead wire or the like to an external sound system or the like is provided. In the following description, each embodiment of the percussion-instrument-type musical sound control device will be described using the pad body 20 as an example.
0 ′ may have the same type of structure, or may be appropriately combined with those of the embodiments described below.

(First Embodiment) FIG. 1 is a side sectional view and a partially enlarged sectional view of a percussion instrument type tone control apparatus, FIG. 2 is a partial plan view of an upper case 10, and FIG. FIG. 3 is a plan view of the sensing unit 3. FIG.
5 is a sectional view taken along the line AA in FIG. 5 and corresponds to a sectional view taken along the line AA in FIGS. 2 and 3. 1 and 2 illustrate both the first embodiment and the second embodiment.
The movable contact 41 and the fixed contact 42 shown in FIG. 1B and the fixed contact 42 shown in FIG. 2 are respectively formed in the case of the second embodiment. In the first embodiment, the movable contact 41 and the fixed contact 4 are formed.
There shall be no 2.

The upper case 10 is formed of an ABS resin or the like, and has a pad housing portion 1 having a circular shallow concave portion for housing the pad body 20. In the pad receiving portion 1, a sensor facing portion 11 formed in the shape of a thin disk at the center, an annular projecting portion 12 projecting annularly around the outer periphery of the sensor facing portion 11, and extending around the outer periphery of the annular projecting portion 12. Each of the annular flat portions 13 is formed. Between the sensor facing portion 11 and the annular projection 12, a sensor fixing body 31 described later is provided.
Screw holes 14 are formed at three locations to fix the piezoelectric sensor 33. Further, an opening 15 for drawing out the lead wire 33a of the piezoelectric sensor 33 is formed in a part of the sensor facing portion 11.

As shown in FIG. 1, the pad body 20 is composed of a pad skin body 2 and a sensing unit 3, and the sensing unit 3 is composed of a sensor fixing body 31, a radial pressing part 32 and a piezoelectric sensor 33. ing.

The pad skin 2 is formed of an elastic material such as rubber, and has a substantially disk shape, and the hit surface 21 on the surface thereof is slightly raised toward the center. An annular rim portion 22 extending rearward is formed on the periphery, and a ridge 23 is formed around the entire outer surface of the rim portion 22.
(See FIG. 1B). As shown by a dashed line in FIG. 2, the outer diameter of the rim portion 22 is slightly smaller than the inner diameter of the pad housing portion 1. And the tip of the ridge 23 is the inner surface 1 of the pad housing 1.
A (see FIG. 1B). As a result, the ridge 23 is formed between the pad skin 2 and the pad housing 1.
It prevents dust and the like from entering through the gaps between them.
Furthermore, a large number of small projections 24
Is formed, and the circumference 8 is formed near the inside of the rim portion 22.
Elastic projections 25 are formed at eight equal parts. The elastic projection 25 has a constricted portion 25a having a reduced side diameter and a hook 25b having a larger diameter than the constricted portion 25a.

As shown in FIG. 3, the sensor fixing body 31 and the radial pressing portion 32 of the sensing unit 3 are formed in a thin disk shape by stainless steel having high spring property. Screw holes 31a are formed in the sensor fixing body 31 at three positions corresponding to the screw holes 14 of the pad housing portion 1, and a positioning projection 31b is formed at the center. The radial pressing portion 32 has three screw holes 31a formed at three positions corresponding to the screw holes 31a of the sensor fixing body 31 and a through hole 32a having a diameter larger than the head of the screw 17 (FIG. 1). In addition, holes 32b for fixing to the pad skin 2 are formed at eight positions corresponding to the elastic projections 25 of the pad skin 2. Further, a bulging portion 32c bulging into a thin truncated cone is formed at the center of the radial pressing portion 32, and a positioning hole 32d is formed at the center thereof.

The sensor fixing body 31 and the radial pressing section 32
The bulging part 32 c of the radial pressing part 32 is brought into contact with the sensor fixing body 31, and the positioning projection 31 b is formed in the positioning hole 32.
d, and are fixed to each other by spot welding at three portions of the circumference (three-dot chain line in FIG. 3) at the bulging portion 32c. The piezoelectric sensor 33 is fixed to the center surface of the sensor fixing body 31 after spot welding.

Here, the assembly of this device will be described. First, the screw holes 31a of the sensor fixing body 31 and the holes 32a of the radial pressing section 32 are aligned with each other, and the sensor fixing body 31 and the radial pressing section 32 are spot-welded together with their opposing surfaces to be integrally formed. Formed, and the piezoelectric sensor 3
3 is attached such that the metal surface side and the sensor fixing body 31 are opposed to each other. Thus, the piezoelectric sensor 33, the sensor fixing body 31, and the radial pressing portion 32 are integrally formed. Then, the lead wire 33a of the piezoelectric sensor 33 is attached to this.

Next, the lead wire 33a is pulled out from the opening 15 toward the inside of the main body, and the sensor fixing body 31 is attached to the pad housing portion 1.
And the screw 17 (FIG. 1) is inserted through the through hole 32a of the radial pressing portion 32 and the screw hole 31a of the sensor fixing body 31.
(Three places), and the sensor fixing body 31 is mounted in the pad housing 1. Next, pad skin 2
The pad skin 2 is put on the radial pressing portion 32 by aligning the elastic projection 25 with the hole 32 b of the radial pressing portion 32.
And it presses from the hitting surface 21 side of the pad skin body 2,
The elastic projection 25 is pressed into the hole 32b. As a result, the hook 25b at the tip of the elastic projection 25 expands again on the side of the annular flat portion 13 through the hole 32b, so that the radial pressing portion 32 is fixed to the pad skin 2 at the peripheral portion 32A.

The small projections 24 formed on the back surface of the pad skin 2 serve the following functions. Each small protrusion 2
4, when the radial pressing portion 32 and the pad skin 2 are fixed by press-fitting the elastic projection 25 into the radial pressing portion 32,
The small projection 24 is provided so as to always press against the upper surface of the radial pressing portion 32. In other words, the elasticity of the small projections 24 ensures that the pad skin 2 and the radial pressing portion 32 are integrated, and that the radial pressing portion 32 during strong hitting.
Is slightly absorbed by the small projections 24.
Thereby, the striking force on the pad skin 2 is faithfully transmitted to the radial pressing portion 32.

As described above, the pad unit 20 is formed by connecting the sensing unit 3 to the pad skin 2 having the hitting surface 21, and the pad unit 20 is fixed on the sensing unit 3 side as an upper case, 10 is attached. In addition, the sensing unit 3
A piezoelectric sensor 33 is provided at the center in the radial direction of the radial pressing portion 32, and the piezoelectric sensor 33 is floated on the upper case 10 (fixed portion) by the sensor fixing body 31 (elastic body).
The radial pressing part 32 has a pad skin 2 at its peripheral edge 32A.
It has a structure that is fixed to.

FIG. 4 is an operation diagram of the embodiment. The operation of the embodiment will be described with reference to FIG. FIG. 4 shows a side cross section corresponding to the view taken along the line BB in FIGS. 2 and 3, and the figure is exaggerated in thickness and the like and omitted in detail for easy understanding. FIG. 4A shows a state in which no impact is applied. FIG. 4 (B) shows a state in which an impact (arrow) is applied to a part of the periphery of the pad skin 2, and the radially pressurized portion 32 has its bulging portion 32c deforming itself. As a result, a pressing force is applied to the central portion of the sensor fixed body 31 (displacement amount A). Then, the sensor fixing body 31 is elastically deformed such that the piezoelectric sensor 33 side expands.

FIG. 4C shows a state in which a stronger impact is applied than in the state of FIG. 4B, and the elastic deformation of the sensor fixed body 31 increases (displacement B, B> A). However, the lower surface of the hook portion 25b of the elastic projection 25 and the lower surface of the rim portion 22 abut on the annular flat portion 13 of the pad housing portion 1 and the sensor fixing body 3
1 is no longer deformed. That is, the elastic projection 25
And the rim portion 22 cooperate to function as a stopper. Thus, excessive deformation of the piezoelectric sensor 33 is prevented. FIG. 4 (D) shows a case where a hit is applied to the center of the pad skin 2, in which case the pad skin 2 is displaced so as to be entirely constant (C1 = C2), Then, the sensor fixing body 31 is deformed, and elastically deforms so that the piezoelectric sensor 33 side expands around its center.

As described above, the piezoelectric sensor 33 is deformed together with the sensor fixing body 31, and the piezoelectric sensor 33 generates piezo-electricity by the piezoelectric effect and is output from the lead wire 33a. The time-series operation for one hit is as follows. When a shock is applied to the pad skin 2, the displacement of the pad skin 2 shifts from, for example, FIG. 4 (A) to FIG. 4 (B) or FIG. 4 (C), and immediately FIG. Go back a little in the direction of
In this process, alternating vibration is repeated. That is, the vibration is attenuated while repeating the states of FIGS. 4A and 4B, and an output signal corresponding to the vibration is obtained from the piezoelectric sensor 33. Depending on the way of hitting, a pulse-like signal is obtained instead of the alternating vibration, which is one reciprocal displacement and the displacement and the vibration almost coincide. In this case, the displacement signal is a signal having a different polarity between going and returning, but it is assumed that only "going (in the case of FIG. 4B)" is detected. Then, as processing of the output signal of the piezoelectric sensor 33, for example, the envelope of the output signal is detected, and a trigger signal or a level signal is detected from the envelope to control tone generation of a musical tone.

As described above, since the radial pressing portion 32 and the sensor fixing body 31 are both radial (in the above example, circular) and are fixed at the center thereof, the pad skin 2
The striking force applied to (and the radial pressing portion 32) concentrates on the central portion of the radial pressing portion 32, and transmits the force from there to the central portion of the sensor fixing body 31. This allows
The sensor fixed body 31 is deformed around its center, and the piezoelectric sensor 33 is similarly deformed. Therefore, if the impact force is applied in the same manner, the same output signal can be obtained from the piezoelectric sensor 33 regardless of which part of the pad skin 2 is applied with the impact force. Accordingly, even if a vibration input is input from any direction except the pad housing portion 1 (attachment portion) of the pad body 20, a response corresponding to the input level is performed.

In order to prevent the sound from being emitted when the output of the piezoelectric sensor 33 is of the order of noise, the sound is started when the output of the piezoelectric sensor 33 exceeds a predetermined threshold value.

In the first embodiment described above, the lowermost stopper is constituted by the elastic projection 25 and the rim 22 formed on the pad skin 2, but only the elastic projection 25 or only the rim 22 is formed. The stopper may be formed by using.

(Second Embodiment) As described above, FIGS. 1 and 2 also show a second embodiment. In the second embodiment, as shown in FIG. A movable contact 41 is formed on the lower surface of the portion 25a by printing a conductive member or the like, and the fixed contact 42 is provided at a position corresponding to each movable contact 41 of the eight elastic projections 25 on the annular flat portion 13 of the pad housing portion 1.
Are formed (see FIG. 2). The movable contact 41 corresponding to the fixed contact 42 constitutes a contact switch. A fixed contact 42 is formed on a doughnut-shaped flexible substrate, and this flexible substrate is
3, the fixed contact 42 may be arranged corresponding to the movable contact 41.

The movable contact 41 and the fixed contact 42 are, for example, as shown in FIG. The fixed contact 42 is formed by printing and wiring two fork-type fixed contact patterns 42a and 42b such that the fork portions are interchanged with each other. One fixed contact pattern 42a is connected to a common line with another switch. The other fixed contact pattern 42b is connected to a detection circuit or the like as a unique one indicating this switch. The movable contact 4
Reference numeral 1 denotes a circular shape formed on the spherical lower surface of the hook portion 25a of the elastic projection 25. When the hook portion 25a comes into contact with the annular flat portion 13 and functions as a stopper, the hook portion 25a is elastically deformed. As a result, the movable contact 41 comes into contact with the fixed contact 42 as a circular contact surface as shown by a broken line in FIG. 9B. Thereby, the fixed contact pattern 42
a and 42b are conducted, and the switch is turned on. That is, when the impact is small, the switch is not turned on because the elastic projection 25 does not abut the annular flat portion 13 as shown in FIG. 4B, for example.
Abuts on the annular flat portion 13 to turn on the switch.
Therefore, the tone is controlled by detecting the ON state of the switch.

In the above embodiment, the case where a single-stage switch is constituted by the movable contact 41 and the fixed contact 42 has been described.
For example, a movable contact 43 as shown in FIG. 10A and a fixed contact 44 as shown in FIG.
2 as one set, and the movable contact 43 and the fixed contact 44 as one set.
A stage switch may be configured. The intersection of the fixed contact patterns 44a and 44b can be formed by applying a resist or by using a through hole and a bridge. In the case of this two-stage switch, the movable contact 41 comes into contact with the fixed contact 42 with a certain degree of impact to turn on the first stage switch. Contacts the fixed contact 44 and
The stage switch is turned on.

Next, an example of tone control based on the operation of the switch will be described. FIG. 2 shows each fixed contact 42.
As described above, the eight switches are distinguished from each other by the symbols S1 to S8. The switch on the player side (foreground) corresponds to S5, the switch for the right hand corresponds to S3, and the switch for the left hand corresponds to S7. In each of the following control examples, the basic tone level, which is one of the basic elements of the tone, is controlled in accordance with the output signal of the piezoelectric sensor 33 as in the related art.

The timbre is controlled by controlling the timbre filter in accordance with the ON state of the four switches S1, S3, S5 and S7. For example, when the switch S7 is on, the tone is set to the darkest tone (tone with a small number of harmonic components), and when the switch S3 is turned on, the tone is set to the brightest tone (tone with a lot of harmonic components). When the switch S1 is on or the switch S5 is on, the tone is set to an intermediate brightness.

The timbre is controlled in accordance with the on-states of eight switches S1 to S8. The brightness of the generated timbre is preset in a stepwise manner, and when one of the switches S1 to S8 is turned on, the timbre is brightened by one step.
The second ON increases the brightness by one step, and the eight ONs increase the brightness. In order to change the brightness of the tone color stepwise, for example, the cutoff frequency of the tone color filter may be switched stepwise. In addition, it is preferable to use a switch such as an operation panel to switch between controlling the tone to be brighter and controlling the tone to be darker.

In the same manner as described above, the sound volume level is controlled stepwise according to the number of ONs of the eight switches S1 to S8. Note that the control of the volume level means that the piezoelectric sensor 3
That is, the basic volume level determined according to the output of the third step is further increased in volume. Also,
In this case as well, it is preferable to be able to switch between increasing and decreasing the volume level stepwise in combination with another switch.

Speakers are arranged at the front, rear and left and right of the electronic drum device of the embodiment, respectively, and a switch S1 is provided.
The panning is controlled by this speaker in response to ON of steps S8 to S8. For example, when the switch S1 is turned on, the sound of the front speaker is emphasized or only the front speaker is sounded. Similarly,
When the switch S7 is turned on, the left speaker, when the switch S5 is turned on, the front speaker (speaker of the main body) or the rear speaker, and when the switch S3 is turned on, the right speaker is emphasized or the corresponding speaker is controlled. For the switches S2, S4, S6, and S8, the sound image localization is set in the direction of the switch that is turned on. Also, switch S
When all three switches S1, S8, and S7 are on, control is performed in accordance with the combination of on states of a plurality of switches, such as to control the directivity in the S8 direction more than when only S8 is on. Is also good.

At the time of sound generation, the sound is generated when the output of the piezoelectric sensor 33 exceeds a predetermined threshold value. After a predetermined time from the time when the output exceeds the threshold value, until the re-sounding possible time (30 to 100 ms or less) If any one or more of the switches are turned on in (), it is determined to be a heavy tone. For example, in the case of the snare drum, only the sound generated by the vibration of the skin is generated, but the sound of the skin is mixed with the sound of the sound line (snappy) on the back side of the drum. Also,
In the case of the two-stage switch, control can be performed such that the degree of mixing of the heavy sounds is increased by turning on the second-stage switch.

As described above, the switches S1 to S8 are turned off / on by the distance between the struck surface 21 of the pad skin 2 and the annular flat portion 13 (that is, the upper case 10 as a fixed portion).
This corresponds to the change information of the tone distance, and controls tone elements other than the volume level (one of the basic elements of the tone) based on the change information. Further, in the case of a two-stage switch, each state where both stages of switches are off, the first stage is on, and the second stage is on also corresponds to the distance change information.

(Third Embodiment) FIG. 6 is a partial cross-sectional view of a percussion-instrument-type musical tone control device according to a third embodiment, and FIG. 7 is a plan view of a pad skin in the third embodiment. In the figure, the same components as those in the first embodiment are denoted by the same reference numerals, and the detailed description thereof will be omitted. In the third embodiment, the light-emitting body 5 disposed on the peripheral portion of the pad skin 2 is caused to emit light, so that the hitting mode is visually displayed. The structure is similar to the example. That is, FIG. 6 corresponds to the cross section taken along the line CC of FIG.
The cross section taken along the line AA passing through the elastic projection 25 of the pad skin 2 shown in FIG. 1 has the same structure as that of the first embodiment shown in FIG.
The structure of the pad skin 2 and the sensing unit of the third embodiment is the same as that of the pad skin 2 and the radial pressing portion 3.
2, holes 2a and 32e for fitting the light-emitting bodies 5 respectively (FIG. 6)
The structure is the same as that of the first embodiment except that is formed.

On the annular flat portion 13 of the pad accommodating portion 1, a doughnut-shaped flexible substrate 6 matching the annular flat portion 13 is provided, and first and second flexible substrates 6 are provided on the upper surface of the flexible substrate 6. Fixed contacts 62, 64, and LE
A D light source 65 is provided. The light emission luminance of the LED light source 65 is controlled by a drive circuit (not shown) and emits light at a predetermined luminance level.

A total of eight luminous bodies 5 are provided between the elastic projections 25 on the periphery of the pad skin 2, and the luminous bodies 5 can transmit light emitted from the LED light source 65. It is made of a material such as rubber which is transparent and elastic to some extent. The overall shape of the light emitting body 5 is substantially a rotating body (excluding the upper end) obtained by rotating the cross section of FIG. 6 around the vertical center line of the light emitting body 5 as an axis.
The light guide light emitting portion 51 having a substantially cylindrical shape, a light collecting portion 52 having a larger diameter than the light guide light emitting portion 51, and a leg portion 53 extending from the lower end periphery of the light collecting portion 52 are integrally formed. .
Then, the luminous body 5 is configured such that the light guide light emitting section 51 is connected to the radial pressing section 3.
2 through the hole 32e and the hole 2a of the pad skin 2, and is attached to the pad skin 2 by bonding or the like.

A dome-shaped concave surface 52 is provided on the lower surface of the light collector 52.
a, and the concave surface 52 a and the LED light source 65 are formed.
And a hollow portion 52b is formed between them, and a white paint 52c is applied to a lower portion of the concave surface 52a. Also, the leg 53
Are the first skirt portion 53a and the second skirt portion 53
b, a third skirt portion 53c and a flange portion 53d. The light-emitting body 5 has a flange portion 53d in contact with the upper surface of the flexible substrate 6, a light-collecting portion 52 and leg portions 53 having fixed contacts 62 and 64, and an LED light source. 65 so as to cover them.

A first movable contact 61 is provided on the back surface between the first skirt 53a and the second skirt 53b so as to face the first fixed contact 62.
Further, the second skirt portion 53b and the third skirt portion 53
A second movable contact 63 is provided on the back surface between the first and second contacts c so as to face the second fixed contact 64. The movable contact 61 and the fixed contact 62 constitute a first switch SW1, and the movable contact 63 and the fixed contact 64 constitute a second switch SW2.

With the above configuration, the skirt portions 53a, 53b, 53c of the leg portions 53 are elastically deformed, so that when the pad skin 2 is hit, the light guide light emitting portion 51 and the light condensing portion 52 are connected to the pad skin 2. Together with the impact direction (vertical direction)
It can be moved to. Thereby, the pad skin 2
Distance between the hit surface 21 and the annular flat portion 13 (ie,
The change in the distance between the light-collecting unit 52 and the LED light source 65 changes when the distance between the light-collecting unit 52 and the LED light source 65 changes. This change in the distance appears as a change in the light emission intensity of the light guide light emitting unit 51 as described later. Also, for a certain degree of impact, the movable contact 61 comes into contact with the fixed contact 62 and the first switch SW1 is turned on. For even stronger intensity, the movable contact 63 is attached to the fixed contact 64. Touching the second switch SW2 together with the first switch SW1
Is also turned on.

Here, a part of the light from the LED light source 65 is incident on the concave surface 52a of the light condensing part 52 of the luminous body 5, and this incident light is guided upward by the light guiding light emitting part 51. Since the light is emitted from the upper end surface 51a of the light emitting unit 51, the pad skin 2
The luminous body 5 appears to shine at eight places on the periphery of the light emitting element. When the pad skin 2 is hit, the LED light source 65 is
2b, the light emitted from the LED light source 65 does not escape in all directions, and the light-collecting efficiency of the light-collecting unit 52 is increased. this is,
This is because the solid angle formed by the concave surface 52a around the LED light source 65 becomes large, and the light flux incident on the concave surface 52a from the LED light source 65 increases. Accordingly, the brightness of the upper end surface 51a of the light guide light emitting unit 51 is higher when a hit is applied to the pad skin 2 than when no hit is applied to the pad skin 2.
Further, since the brightness of the upper end face 51a changes according to the intensity of the impact, the intensity of the impact can be visually displayed, and the player can visually recognize the intensity. As described above, the luminance change at the time of hitting is realized only by the mechanical system, and the configuration is simplified.

The third embodiment operates as follows. First, the volume level is controlled in accordance with the output of the piezoelectric sensor 33 as in the first and second embodiments. Further, the first and second switches SW1 and SW2 are not used, and the LED light source 65 is always in a light emitting state. In addition, it may blink constantly. In this state, at the time of non-hitting, the eight illuminants 5 provided on the peripheral portion of the pad skin 2 are always dimly shining, but at the time of hitting, the illuminant 5 according to the hitting position and the hitting strength Changes in the mode of light emission luminance. This indicates that when the entire pad skin 2 is viewed, the display mode changes depending on the performance mode.

The luminous intensity of each luminous body 5 becomes stronger when the distance between the hitting surface 21 where the luminous body 5 is disposed and the LED light source 65 becomes shorter, and becomes weaker when the distance becomes longer. Further, since the pad skin 2 is held at the center by the radial pressing portion 32 and the sensor fixing body 31 with respect to the upper case 10 as described above, the pad skin 2 is hit on one side edge. When applied, the area where the impact was applied will sink but the other side will tend to lift slightly.

Therefore, as shown in FIG. 11, for example, when a strike is applied to the peripheral portion of the pad skin 2, at the moment of the strike, the luminous display H1 of the light emitting body 5 at the strike position (position around the stick) is displayed. The light emission display H2 on the opposite side of the light emission display H1 becomes darkest. The middle light-emitting display H3 has medium brightness. When a hit is applied to the center of the pad skin 2, the entire light emission display becomes bright only at the moment of the hit. In addition, if the hitting position is pressed all the time, the above-described display mode is maintained. Further, when two sticks are repeatedly struck, the light-emitting display near each stick becomes brighter at the moment of impact, and the light-emitting display at the position of the two sticks is alternately repeated, and the pitch of the continuous striking (pronunciation) (Interval) etc. can be visually grasped by the light-emitting mode of light and dark. Therefore, for example, the drum training effect on a one-on-one basis is enhanced.

Next, when the first switch SW1 and the second switch SW2 are also used, for example, the following control is performed. In each of the following control examples (1) to (4), the basic tone level, which is one of the basic elements of the tone, is controlled according to the output signal of the piezoelectric sensor 33 in the same manner as described above. In addition, the circuit shown in FIG.
LED light source 65 corresponding to W1 and SW2 (switch SW
LED light source 6 at the same light emitting body 5 position as SW1, SW2
The brightness of 5) is controlled by turning on / off the switches SW1 and SW2. That is, when switch SW1 is on, L
The ED light source 65 is turned on, and is brightly lit when the switch SW2 is further turned on. Also, the switches SW1 and SW2
The on / off signal is detected by a CPU or the like to control a tone such as a tone.

For example, eight sets of switches SW1 and S
When the switch SW1 of W2 is turned on, the tone is brightened by one step as in the second embodiment. Further, among the eight sets of switches SW1 and SW2, SW1 or SW2 is used.
Irrespective of this, control is performed such as simply increasing the harmonic component each time the number of ONs increases. Also in this case, it is preferable that the control can be switched between a control for increasing the tone and a control for decreasing the tone in combination with another switch.

Regardless of SW1 or SW2 among the eight sets of switches SW1 and SW2, the volume level is controlled stepwise in the same manner as in the second embodiment simply by the number of ONs. Also in this case, it is preferable that the volume level can be switched stepwisely or stepwisely reduced in combination with another switch.

The panning is controlled in the same manner as in the second embodiment according to the on-states of the switches SW1 and SW2 of each of the eight sets. However, when both SW1 and SW2 are on, the directivity in the direction of the set of switches is further emphasized.

Of the switches SW1 and SW2 of each set,
When one set of both SW1 and SW2 is turned on, it is regarded as a double tone.

As described above, in this embodiment, the struck surface 21 of the pad skin 2 and the annular flat portion 1
The visual information corresponding to the mode of hitting the pad body 20 is obtained based on a change in the distance from the pad body 3. Further, at the position of each light-emitting body 5, turning off / on of the switches SW1 and SW2 corresponds to the change information of the distance between the hit surface 21 and the annular flat portion 13, and based on the change information, the musical tone is generated. The tone elements other than the volume level, which is one of the basic elements, are controlled.

(Fourth Embodiment) FIG. 8 is a partial cross-sectional view of a percussion instrument-type musical tone control device according to a fourth embodiment. In FIG. Detailed description is omitted. In the fourth embodiment, the flexible substrate 6 and the switches SW1 and SW2 of the third embodiment are omitted, and light is emitted to the luminous body 8 by the optical fiber 7 instead of the LED light source 65. The fourth embodiment has the same structure as that of each of the above embodiments except for the portion related to the light emitting body 8 and the optical fiber 7, and FIG.
Corresponding to the section taken along arrow -C, and the structures of the pad skin 2 and the sensing unit are the same as in the third embodiment.

The luminous body 8 has eight luminous bodies 8 instead of the luminous body 5 of the third embodiment, and is arranged on the periphery of the pad skin 2, and like the luminous body 5, a transparent and elastic material such as rubber is used. It is made of The overall shape of the light emitting body 8 is also substantially the same as that of the light emitting body 5, and a substantially cylindrical light guide light emitting section 81, a light collecting section 82 and a leg 83 are integrally formed. The hole is pierced through the hole 32e of the radial pressing portion and the hole 2a of the pad skin 2, and attached to the pad skin 2 by bonding or the like. However, the difference from the light-emitting body 5 is that the leg 83 has one skirt portion 8 that is elastically deformed when the pad skin 2 is hit.
3a and a flange portion 83b.

A fiber mounting hole 16 is formed in the annular flat portion 13 of the pad housing portion 1, and a fiber holding member 71 for holding the tip of the optical fiber 7 is fitted into the fiber mounting hole 16 and bonded. And so on. Note that a snap means may be provided on the side surface of the fiber holding member 71 so that the fiber holding member 71 can be detachably attached to the fiber mounting hole 16 (the upper case 10). The optical fiber 7 is drawn out from the fiber mounting hole 16 into the main body on the back side of the front case 10. The optical fiber 7 has an annular single-sided portion 13.
The same configuration is provided at the other seven locations, with a total of 8
The optical fibers 7 are bundled together and guided to one LED light source 72.

The attachment of the optical fiber 7 to the fiber holding member 71 is performed as follows. As shown in FIG. 13, the tip of the optical fiber 7 is inserted into the hole 71a of the fiber holding member 71, and the tip of the optical fiber 7 is drawn slightly inward from the periphery of the hole 71a (FIG. 13A). . Then, one or two drops of a liquid adhesive having the same refractive index as that of the optical fiber 7 is applied to the tip of the optical fiber 7 (FIG. 13B). As a result, a small amount of adhesive enters the gap between the hole 71a and the optical fiber 7, and the optical fiber 7 and the fiber holding member 71 are adhered to each other. Lens part 73 (FIG. 13C)
Can be formed. The lens portion 73 radially emits the light guided by the optical fiber 7.

The light emission brightness of the LED light source 72 is controlled by a drive circuit (not shown). When the output of the piezoelectric sensor 33 reaches a predetermined threshold value, that is, when the LED emits light,
The light source 72 emits light at a constant luminance level. And LE
Light is emitted from the D light source 72 to the eight optical fibers 7, and light is emitted from the lens portion 73 at the end of the optical fiber 7 on the light emitting body 8 side to the condensing portion 82 of the light emitting body 8. Thereby, the upper end surface 81a of the light guide light emitting unit 81 emits light.

This fourth embodiment operates as follows. The control of the volume level based on the output of the piezoelectric sensor 33 is the same as in each of the above embodiments. In the fourth embodiment, when a predetermined level of impact is applied such that the output of the piezoelectric sensor 33 exceeds the threshold value, each lens portion 73 of the eight optical fibers 7 emits light at a constant luminance. However, as in the case of the third embodiment shown in FIG. 11, the light emitting display near the hitting position is brightest, and the light emitting display far from the hitting position is dark. When the intensity of the impact is high, the display is bright, and when the intensity is low, the display is dark. Thus, the mode of the impact can be visually grasped. It should be noted that, even in the case of this embodiment, a specification that always emits light may be adopted.

Also, in the fourth embodiment, the movable contact is provided on the lower surface of the condensing portion 82 of the luminous body 8 and the fixed contact is provided on the annular flat portion 13 to constitute a switch. The same control as described above is possible.

In each of the above embodiments, the sensor fixing body and the radial pressing portion are circular. However, for example, a hard plate material is provided on the back surface of the pad skin 2 to cover substantially the entire back surface of the pad skin 2. If reinforced, the fixed sensor body and the radial pressing portion may have a substantially rotationally symmetric shape such as a triangle, a square,..., A polygon, a circle, a Y-shape, and a star.

[0080]

As described above, according to the percussion-instrument-type musical tone control device of the first aspect of the present invention, the striking force applied to the pad skin is concentrated on the central portion of the radial pressing portion and applied to the piezoelectric sensor. Since the force is transmitted, even if the vibration input is input from any direction except the mounting part to the fixed part of the sensing unit, the response corresponding to the input level is made, and where the position to apply the impact to the pad body is The same output can be obtained with the same impact force. In addition, since the radial pressurizing portion fixed to the pad skin has a structure in which a vibration input is applied to the sensor at the center in the radial direction, information corresponding to the impact mode, such as near the periphery of the pad skin, is provided. , A structure for obtaining information for controlling the musical tone elements can be provided. Further, since the piezoelectric sensor is floated with respect to the fixed portion by the elastic body, the hit surface is displaced with respect to the fixed portion by hitting the hit surface of the pad skin, Based on the change in the distance between the hitting surface and the fixed portion, it becomes possible to obtain information corresponding to the hitting mode and control the musical sound.

According to the percussion-instrument-type musical sound control device of the second aspect of the present invention, information corresponding to the hitting state of the pad body is visually displayed based on the change in the distance between the hitting surface and the fixed portion. Useful for practice and contributes to rapid progress. In addition, at the time of live (live) performance,
In particular, since the impact mode can be visually recognized, the performance that impresses the audience is facilitated.

According to the percussion-instrument-type tone control device of the present invention, one of the basic elements such as the volume is controlled by the sensor output of the sensing unit, and the change in the distance between the hit surface and the fixed portion is controlled. Since tone elements other than the above basic elements for hitting are controlled according to the information, it is possible to enrich the variation of the tone.

According to the percussion-instrument-type musical tone control device of the fourth aspect of the present invention, the variation of musical tones can be enriched, and it is useful for practice and contributes to quick progress. ) At the time of the performance, the user can visually recognize his / her own playing style, particularly the manner of hitting, so that the performance that impresses the audience is facilitated.

According to the percussion-instrument-type musical sound control apparatus of the fifth aspect of the present invention, the elastic projections serving as fixing means for fixing the pad skin to the radial pressing portion are provided when the pad is hit. In addition, since it also serves as a stopper for stopping the radial pressing portion at a predetermined position, the number of parts can be reduced and the number of assembling steps can be reduced.

According to the percussion-instrument-type musical sound control device of the sixth aspect of the present invention, a switch is constituted by a movable contact formed on an elastic projection serving as a means for fixing the pad skin and the radial pressing portion. Thus, it is possible to control a tone element, a light emission state of a visual display, and the like. In addition, the number of parts can be reduced as compared with the case where such a switch is separately provided, and the number of assembling steps can be reduced.

According to the percussion-instrument-type musical sound control device of the seventh aspect of the present invention, the number of parts can be reduced and the number of assembling steps can be reduced. further,
A switch is constituted by a movable contact formed on an elastic projection serving as a fixing means between the pad skin and the radial pressing portion. By operating the switch, a tone element and a light emission state of a visual display can be controlled. In addition, the number of parts can be reduced as compared with the case where such a switch is separately provided, and the number of assembling steps can be reduced.

[Brief description of the drawings]

FIG. 1 is a side sectional view and a partially enlarged sectional view of a percussion instrument type tone control device according to first and second embodiments of the present invention.

FIG. 2 is a partial plan view of an upper case of the electronic drum device of the first and second embodiments.

FIG. 3 is a plan view of a sensing unit in the percussion-instrument-type musical sound control devices of the first and second embodiments.

FIG. 4 is an operation diagram of the percussion instrument type tone control device of each embodiment.

FIG. 5 is a top view of an electronic drum device to which the percussion instrument type tone control device of each embodiment is applied.

FIG. 6 is a partial cross-sectional view of a percussion instrument type musical sound control device according to a third embodiment.

FIG. 7 is a plan view of a pad skin according to a third embodiment.

FIG. 8 is a partial cross-sectional view of a percussion instrument type musical sound control device according to a fourth embodiment.

FIG. 9 is a diagram illustrating an example of a movable contact and a fixed contact of a one-stage switch according to a second embodiment.

FIG. 10 is a diagram showing an example of a movable contact and a fixed contact of a two-stage switch in a second embodiment.

FIG. 11 is a diagram showing an example of a light-emitting display at the time of hitting the pad skin in the third embodiment and the fourth embodiment.

FIG. 12 is a diagram illustrating an example of a driving circuit of an LED light source using first and second switches according to a third embodiment.

FIG. 13 is a diagram illustrating a method of attaching an optical fiber to a fiber holding member according to a fourth embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Pad accommodating part, 2 ... Pad skin, 3 ... Sensing unit, 10 ... Top case (fixed part), 20, 20 '
... Pad body, 21 ... Struck surface, 25 ... Elastic projection (fixing means), 31 ... Sensor fixed body (elastic body), 32 ... Radial pressing portion, 32A ... Peripheral edge, 32b ... Hole (fixing means), 33
... a piezoelectric sensor, 41 ... a movable contact, 42 ... a fixed contact.

Claims (7)

[Claims] 1. A percussion-type musical tone which forms a pad body by connecting a sensing unit for sensing a strike to a pad skin having a surface to be struck, and generates a tone control signal in accordance with a sensor output from the sensing unit. In the control device, the sensing unit is provided with a piezoelectric sensor at a radial center portion of the radial pressing portion so that a response corresponding to the input level is performed even if a vibration input is input from any external direction. A percussion-instrument-type musical sound control apparatus, wherein the piezoelectric sensor is floated on an elastic body with respect to a fixed portion, and the radial pressing portion is fixed to the pad skin at a peripheral portion thereof. 2. A percussion-type musical tone that forms a pad by connecting a sensing unit for sensing a strike to a pad skin having a surface to be struck, and that generates a tone control signal in response to a sensor output from the sensing unit. In the control device, the hitting surface can be displaced with respect to the fixed portion by hitting the hitting surface, and the sensor output of the sensing unit is driven by driving the hitting surface of the pad skin. In addition to controlling at least one of the basic elements of the musical tone, the distance between the hit surface and the fixed portion changes, and information corresponding to the hitting mode of the pad body is visually displayed based on this change. A percussion-instrument-type musical tone control device characterized by the above-mentioned. 3. A percussion-type musical tone which forms a pad body by connecting a sensing unit for sensing a strike to a pad skin having a surface to be struck, and generates a tone control signal in accordance with a sensor output from the sensing unit. In the control device, the hitting surface can be displaced with respect to the fixed portion by hitting the hitting surface, and the sensor output of the sensing unit is driven by driving the hitting surface of the pad skin. Controls at least one of the basic elements of the musical tone, obtains information on a change in the distance between the hit surface and the fixed portion, and controls musical elements other than the basic element for the strike based on the change information. A percussion-instrument-type musical sound control device characterized in that: 4. A percussion-type musical tone that forms a pad by connecting a sensing unit for sensing a strike to a pad skin having a surface to be struck, and that generates a tone control signal in accordance with a sensor output from the sensing unit. In the control device, the hitting surface can be displaced with respect to the fixed portion by hitting the hitting surface, and the sensor output of the sensing unit is driven by driving the hitting surface of the pad skin. At least one of the basic elements of the musical tone is controlled, and information on a change in the distance between the hit surface and the fixed portion is obtained. Based on this change information, the musical sound elements other than the basic element for the hit are controlled. A percussion-instrument-type musical tone control apparatus, wherein information corresponding to a striking mode of a pad body is visually displayed based on the change in the distance. 5. A percussion-type musical tone which forms a pad body by connecting a sensing unit for sensing a strike to a pad skin having a surface to be struck, and which generates a tone control signal in accordance with a sensor output from the sensing unit. In the control device, the sensing unit includes a sensor floated by an elastic body with respect to a fixed portion, and a radial pressing portion for pressing the sensor, and the radial pressing portion is fixed at a peripheral portion thereof. Means for fixing to the pad skin, said fixing means comprising an elastic projection integrally formed with the pad skin and a hole correspondingly formed in the radial pressing portion. A percussion-instrument-type musical sound control device, characterized in that the lower surface of the projection is used as a stopper for strong hitting. 6. A percussion-type musical tone that forms a pad body by coupling a sensing unit that senses a strike to a pad skin body that has a struck surface and that generates a tone control signal in response to a sensor output from the sensing unit. In the control device, the sensing unit includes a sensor floated by an elastic body with respect to a fixed portion, and a radial pressing portion for pressing the sensor, and the radial pressing portion is fixed at a peripheral portion thereof. The pad is fixed to the pad skin by a means, and the fixing means comprises an elastic projection formed integrally with the pad skin and a hole correspondingly formed in the radial pressing portion. A percussion-instrument-type musical tone control device, wherein a lower surface of a projection is a movable contact of a switch. 7. A percussion-type musical tone that forms a pad body by connecting a sensing unit for sensing a strike to a pad skin having a surface to be struck, and that generates a tone control signal in response to a sensor output from the sensing unit. In the control device, the sensing unit includes a sensor floated by an elastic body with respect to a fixed portion, and a radial pressing portion for pressing the sensor, and the radial pressing portion is fixed at a peripheral portion thereof. The pad is fixed to the pad skin by a means, and the fixing means comprises an elastic projection formed integrally with the pad skin and a hole correspondingly formed in the radial pressing portion. A percussion-instrument-type musical tone control device wherein the lower surface of the projection is used as a movable contact of a switch and as a stopper when hitting hard.