JP2565724B2 - Electronic percussion instrument - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an electronic percussion instrument capable of generating an electronic sound source by hitting a rhythm pad with a stick to cause a conductive rubber to conduct a circuit on a printed circuit board. It is a thing.

(Prior Art) Generally, an electronic percussion instrument is composed of two parts, a rhythm pad portion which is an input means and a sound source output means which sounds a sound source by a signal sent from the input means. The rhythm pad portion is shown in FIG. As shown in FIG. 12, a thin resin plate 102 having a rubber pad 101 adhered to the upper surface, and a conductive rubber layer on a silicon rubber 103.
A printed circuit board 1 in which 104 and a plurality of insulating protrusion layers 105 are integrally molded, and + polar foils 106 and −polar foils 107 are alternately arranged at very short intervals in the same area as the outer shape of the rubber pad 101.
The structure is such that 08 are stacked in order from the top and fixed between the cabinet 109 and the bottom plate 110 with screws 111. Next, the operation will be described.

When the rubber pad 101 is hit with the stick 112, the conductive rubber layer
104 is deformed so as to squeeze the insulating projection layer 105 and adhere to the foil surface of the printed circuit board 108, and simultaneously contact the + polarity foil 106 and the −polarity foil 107 to conduct the circuit. The conduction signal obtained by the input means 113 is sent to the sound source output means 114 provided outside, and the designated sound source is generated from the speaker 115.

(Problems to be Solved by the Invention) The above-described conventional electronic percussion instrument has a drawback that it can reproduce only one kind of tone color generated when the drum head of the original instrument is struck. About this drawback, No. 13
Description will be made with reference to FIGS. Here, a snare drum will be described as an example of the original musical instrument. In general, the snare drum has plastic drum heads 117 and 118 fitted on the upper and lower surfaces of a cylindrical main body 116, metal frames 119 and 120 are overlaid, and is fixed by screws 121 on the substantially central circumference of the main body 116. The frame 119 is fastened to the plurality of brackets 122 with the bolts 123, the drum heads 117 and 118 are tensioned, and the sound is tuned by expansion and contraction. The snare drum having such a structure can produce the following types of tones.

(A) A tone that is generated when only the drum head 117 is hit with the stick 124. This tone is hereinafter referred to as a head tone.
(FIG. 13) (B) Tones generated when the drum head 117 and the frame 119 are hit by the stick 124 at the same time. This tone is hereinafter referred to as a rim shot head tone. (FIGS. 13 and 14) (C) A tone that is generated when the frame 119 is hit at the rear of the stick 124 while the tip of the stick 124 is being applied to the drum head 117. This tone is hereinafter referred to as a rim shot frame tone. (Figs. 15 and 16) Of the types of tones that can be produced by the original instrument, the electronic percussion instrument can reproduce only one type of tone (A).
It had the drawback that it could hardly be used for actual performance.

An object of the present invention is to solve the conventional drawbacks and to provide an excellent electronic percussion instrument capable of reproducing the kinds of tones produced by the original musical instrument by the same playing technique as that of the original musical instrument.

(Means for Solving Problems) The electronic percussion instrument of the present invention is composed of three pads that generate a sound when struck by a stick, and when the first pad is struck, the sound struck by the drum head of the original instrument is reproduced. Is the first
When you hit the pad and the second pad at the same time, the sound of hitting the drum head and frame of the original instrument at the same time is reproduced, and when you hit the third pad, while applying the tip of the stick to the drum head of the original instrument, The sound of hitting the frame at the rear of the stick is reproduced, and the sound is not generated even if the second pad is hit alone. When the third pad is hit at the same time, the first pad does not generate a sound.

(Operation) In the electronic percussion instrument of the present invention, three pads are ergonomically arranged in order to reproduce the same tone color as that of the original musical instrument by using the same performance technique as when playing the original musical instrument. That is, when reproducing a rim shot head sound that cannot be reproduced by a conventional electronic percussion instrument, since it is basically to strike with a stick held by the left hand, the side pad is arranged in front of the center pad to the left. Also, when reproducing rim shot frame sounds that could not be reproduced with conventional electronic percussion instruments,
It is the basic practice to hold the stick in your left hand in reverse and apply the tip of the stick to the left front of the center pad and the back of the stick to the right back side pad, so place the side pad on the right back of the center pad. There is. By arranging the pads in this way, it is possible to reproduce a sound that cannot be reproduced by the conventional electronic percussion instrument by using the same performance technique as that of the original musical instrument. As for the timbre to be reproduced, a sound recorded from an original musical instrument is subjected to signal processing and is incorporated in the sound source output means, and a sound is generated at the same time when a pad is hit.

(Embodiment) An embodiment of the present invention will be described with reference to FIGS. 1 to 8.

FIG. 1 is an exploded diffusion diagram showing a component structure of an electronic percussion instrument of the present invention, FIG. 2 is an operation diagram showing a state where a center pad is struck with the same stick, and FIG. 3 is a center pad and a front side pad simultaneously with a stick. FIG. 4 is an external view showing a hit state, FIG. 4 is a sectional view taken along the line DD of FIG. 3, and FIG. 5 is an external view showing a state where the tip of the stick is applied to the center pad and the rear side pad is hit at the rear part of the stick. FIG. 6 is a sectional view taken along the line EE in FIG.

In the figure, a thin resin plate 4 having a center pad 1, a front side pad 2 and a rear side pad 3 adhered to the upper surface is placed in a cabinet 5, and a silicon rubber layer 6, a conductive rubber layer 7 and an insulating protrusion layer 8 are placed under the cabinet 5. Put the integrally formed rubber plate. A printed circuit board 9 having three switch circuits S ₀ , S ₁ , S _{2 in} which + polar foils and −polar foils are alternately arranged at short intervals is placed below the printed circuit board 9. The switch circuit S ₀ is provided below the center pad 1, the switch circuit S ₂ is provided below the front side pad 2, and the switch circuit S ₁ is provided below the rear side pad 3, respectively. 10 + polarity foil of the switch circuit S _0, the switch circuit S ₀ 11 - polar foil, 12 + polarity foil of the switch circuit S _2, 13 is a switch circuit
S _{2 is} a negative polarity foil, 14 is a positive polarity foil of the switch circuit S ₁ , and 15 is a negative polarity foil of the switch circuit S ₁ . Next, the printed circuit board 9
Insert the bottom plate 16 underneath and use the screws 17 to attach the boss 18 of the cabinet 5.
Conclude by concluding.

The mechanical operation of the electronic percussion instrument configured as described above will be described with reference to FIG. 2, taking as an example the case where the center pad 1 is hit with the stick 19.

When the center pad 1 is hit with the stick 19, the conductive rubber layer 7 is deformed via the thin resin plate 4 and the silicon rubber layer 6, and the insulating projection layer 8 is crushed while the + polarity of the switch circuit S _{0 on} the upper surface of the printed circuit board 9 is crushed. At the same time, the switch circuit S ₀ is made conductive by closely contacting the foil 10 and the −polar foil 11.

Next, the electric operation will be described with reference to FIGS. 7 and 8.

FIG. 7 is a principal block diagram showing the electrical configuration of the electronic percussion instrument of the present invention. In the figure, 20 is an input means composed of the switch circuits S ₀ , S ₁ and S ₂ shown in FIG. ₁ , 21 is an input discrimination means for discriminating the input state of the switch circuit, and 22 is a sound source which outputs according to the input state. A sound source output unit 23 controls a sound source output unit, which has a built-in sound source ROM (Read Only memory), amplifies the sound source, and outputs a musical instrument sound from a speaker 24. Here, in this embodiment, the input discriminating means 21 and the control means 22 are constituted by a microcomputer 25.

Next, the operation of this embodiment will be described based on the flowchart showing the main part of the processing operation of the microcomputer shown in FIG.

First, it is assumed that the power of the device is turned on and the storage device and the like inside the microcomputer 25 are initialized. Then, the switch circuits S ₀ , S ₁ , S _{2 of} the input means 20.
Is connected and entered.

In step 26, the states of the switch circuits S ₀ , S ₁ , S ₂ are input. Then, in step 27, it is judged whether or not at least one switch circuit is ON, and when none is ON, the process returns to step 26 again. When YES is determined in step 27, the process proceeds to step 28. In step 27, it is determined whether the switch circuit S ₀ is ON or OFF. Here, if the switch circuit S ₀ is ON, the process proceeds to step 29, and if it is OFF, the process proceeds to step 30. In step 29, the switch circuits S ₁ , S
_It is determined whether or not ₂ is OFF, and when YES is determined, the process proceeds to step 31. In this case, since only the switch circuit of S ₀ is ON, the sound source of the switch circuit S ₀ is output in step 31 for the above reason, and the process returns to step 25 again. When NO is determined in step 29, the process proceeds to step 32. Here, it is determined whether _one of the switch circuits S ₁ and S ₂ is in the ON state, and when YES is determined, that is, when the switch circuits S ₀ and S ₂ are simultaneously turned on, the process proceeds to step 33. Here, the sound sources of the switch circuits S ₀ and S ₂ are output for the above reason, and the process returns to step 26 again. In step 32
If NO is determined, the switch circuit S ₁ is ON (at this time, the switch circuits S ₀ and S ₁ are simultaneously ON), and the routine proceeds to step 34. Here, for the above reason, the switch circuit
The sound source of S ₁ is output, and the process returns to step 26 again.

Next, in step 30, it is determined whether or not the switch circuit S ₁ is ON, and if YES, the process proceeds to step 34, the sound source of the switch circuit S ₁ is output for the above reason, and the process proceeds to step 26 again. Return. When NO is determined in step 30, it means that only the switch circuit S ₂ is ON. Therefore, no sound source is output for the above reason, and the process returns to step 26.

As described above, according to the present embodiment, by providing the three pads of the center pad, the front side pad and the rear side pad, the tone color generated when the center pad is struck and the drum head of the original musical instrument is struck. When the center pad and the front side pad are struck at the same time, the tone that occurs when the drum head and the frame of the original instrument are struck at the same time is reproduced. At this time, the sound is not produced even if only the front side pad is struck.As a performance technique, it is necessary to have skill to apply the center pad and the front side pad to the stick at the same time. Only the sound has been relieved to occur. When the rear side pad is struck, the tip of the stick is brought into contact with the drum head of the original instrument, while the tone generated when the frame is struck at the rear of the stick is reproduced. At this time, in order to prevent the sound of the center pad from being generated at the same time when the tip of the stick is applied to the center pad and the rear side pad is struck at the back of the stick, when the center pad and the rear side pad are struck simultaneously, Only the rear side pad produces sound.

Therefore, unlike the conventional electronic percussion instrument, there is no drawback that only one type of tone color that occurs when the drum head of the original instrument is struck can be reproduced, and three types of original instrument can be produced with the same playing technique as the original instrument. Since the tones of can be reproduced, electronic percussion instruments that until now could not be used in actual performance can be used on stage.

EFFECTS OF THE INVENTION According to the present invention, unlike the conventional electronic percussion instrument, there is no drawback that only one kind of tone color generated when only the drum head of the original musical instrument is struck can be reproduced, and it is the same as the original musical instrument. Since it is possible to reproduce the three types of timbre that the original musical instrument can produce with the performance technique, electronic percussion instruments, which until now could not be used in actual performance, can now be used on the stage, and its practical effect is extremely large.

[Brief description of drawings]

FIG. 1 is an exploded view showing a component structure of an electronic percussion instrument in one embodiment of the present invention, FIG. 2 is an operation view showing a state where a center pad is struck by the stick, and FIG. 3 shows a center pad and a front side pad. FIG. 4 is an external view showing a state where the sticks are simultaneously struck, FIG. 4 is a sectional view taken along line DD of FIG. 3, and FIG.
FIG. 6 is an external view showing a state where the tip of the stick is applied to the center pad and the rear side pad is struck at the rear part of the stick. FIG. 6 is a sectional view taken along line EE of FIG. 5, and FIG. 7 is an electronic percussion instrument of the present invention. 8 is a block diagram showing the electrical configuration of FIG. 8, FIG. 8 is a flow chart showing the processing operation of the microcomputer of FIG. 7, FIG. 9 is an exploded view showing the component configuration of a conventional electronic percussion instrument, and FIG. Operation diagram showing the state of hitting the band, FIG. 11 is F when the FIG. 9 is assembled.
-F cross-sectional view, FIG. 12 is a block diagram showing the electrical configuration of a conventional electronic percussion instrument, FIG. 13 is an external view showing a state in which a head sound and a rim shot head sound are produced in the original musical instrument, and FIG. Fig. 15 is a cross-sectional view taken along line GG, Fig. 15 is an external view showing a state in which the rim shot frame sound is produced in the original instrument, and Fig. 16 is
FIG. 15 is a sectional view taken along line HH of FIG. 15. 1 ... Center pad, 2 ... Front side pad,
3 ... Rear side pad, 4 ... Thin resin plate, 5 ...
Cabinet, 6 ... Silicon rubber layer, 7 ... Conductive rubber layer, 8 ... Insulating protrusion layer, 9 ... Printed circuit board, 10 ... Switch circuit S ₀ + polar foil, 11 ... Same polarity foil, 12 ... ... + polarity foil of the switch circuit S _2, 13 ...... same - polarity foil, 14 + polarity foil ...... switch circuits S _1, 15 ...... same - polarity foil, 16 ...... bottom plate, 17 ...... screw, 18 ... ... Boss, 19 ... Stick, 20 ...
... input means, 21 ... input determination means, 22 ... control means, 23
...... Sound source output means, 24 …… Speaker, 25 …… Microcomputer, 26,27,28,29,30,31,32,33,34 …… Step.

Claims (3)

(57) [Claims] 1. A pad comprising three pads which generate a sound when hit by a stick, and when the first pad is hit, the sound of hitting the drum head of the original musical instrument is reproduced, and the first pad and the second pad are reproduced. When you hit at the same time, the sound of hitting the drum head and frame of the original instrument at the same time is reproduced,
An electronic percussion instrument characterized in that when the third pad is hit, the sound of hitting the frame is reproduced at the rear part of the stick while the tip of the stick is applied to the drum head of the original instrument. 2. The electronic percussion instrument according to claim 1, wherein a sound is not generated even when the second pad is struck alone. 3. The structure according to claim 1, wherein when the first pad and the third pad are hit at the same time, the first pad does not generate a sound. Electronic percussion instrument.