JPH027076B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an electronic percussion instrument that generates an acoustic signal such as a desired percussion instrument sound or sampled sound based on the impact or swing of an operating member.

[Prior art]

As a conventional electronic percussion instrument of this type, for example, the one shown in Japanese Utility Model Publication No. 59-5912 is known. According to this electronic percussion instrument, a piezoelectric element is embedded in the tip of the drum stick, and the vibration generated when the drum stick is struck can be converted into an electric signal by the piezoelectric element and extracted. A desired acoustic signal can be emitted from the speaker based on the impact of the impacting body.

[Problems with conventional technology]

However, in the conventional electronic percussion instrument described above, the piezoelectric element that generates the electric signal for sounding the acoustic signal is relatively expensive, so not only does the electronic percussion instrument itself become expensive, but the piezoelectric element They tend to deteriorate with time, making it impossible to obtain an electrical signal at a predetermined level for a long period of time, and thus making it impossible to obtain a desired acoustic signal. Furthermore, with conventional electronic percussion instruments, a desired electrical signal is detected from the piezoelectric element only when the drumstick is struck, thereby producing a desired acoustic signal. However, the drawback is that it is not possible to perform percussion instruments with a wide variety of variations, such as obtaining a desired acoustic signal by striking or shaking the drumstick.

[Purpose of the invention]

This invention was made to eliminate these conventional drawbacks, and has a relatively simple configuration.
Therefore, in addition to being inexpensive, it is possible to reliably obtain a stable electrical signal, and therefore, acoustic signals such as percussion instrument sounds and sampled sounds (hereinafter referred to as "musical sounds") can be obtained for a long period of time. Moreover,
The purpose of the present invention is to obtain an electronic percussion instrument capable of performing percussion instruments with a wide variety of variations.

[Key points of the invention]

In order to achieve these objectives, the first invention is
When at least one of a striking force or a swinging force of a predetermined level or more is applied to an operating member that can be operated by striking or swinging, the electric signal generating means is made electrically conductive, and based on this, an acoustic signal is generated. The main point is that an electrical signal for starting signal generation is generated.

Further, the second invention makes the electrical signal generating means electrically conductive when at least one of a striking force or a swinging force of a predetermined level or more is applied to the operating member, and based on this, The main point is that the sound generating means generates an electric signal for starting the generation of the sound signal to be generated.

Further, a third aspect of the present invention provides an acoustic characteristic selection means for selecting a characteristic of an acoustic signal to be generated from the sound generation means based on the electric signal generated from the electric signal generation means provided on the operation member. The main point is that it is provided in the sound generating means.

Furthermore, in a fourth aspect of the present invention, an electric signal for starting generation of an acoustic signal generated from the electric signal generating means is transmitted between the electric signal generating means and the sound generating means provided on the operating member to the sound generating means. The main point is that an electric signal transmitting means is provided for transmitting signals.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

<Configuration of First Embodiment> FIG. 1 is a partially sectional perspective view showing a first embodiment of the present invention.

In FIG. 1, a rod-shaped striking body 1 that is struck or swung during a performance is formed to have approximately the same size, appearance, and shape as a conventional drum stick. As shown in FIG. 2, the stick body 2 constituting the striking body 1 is hollow inside, and the inside of the stick body 2 on the grip side is made of insulating material such as rubber or plastic. A wire holding member 3 is press-fitted and fixed. A base end 4a of a conductive wire 4 protruding toward the distal end side of the stake body 2 is embedded in the axial center of the wire holding member 3. In addition, this wire holding member 3 includes, so as to surround the conductive wire 4.
A base end 5a of a cylindrical contact member 5 that is in electrical contact with the free end 4b of the conductive wire 4 is embedded. The tip 5b of the cylindrical contact member 5 has a predetermined inner diameter (l) to ensure reliable and stable electrical contact with the free end 4b of the conductive wire 4. An annular contact 5c is integrally formed. An annular bushing 6 is interposed between the outer circumference of the tip of the cylindrical contact member 5 and the inner periphery of the stick body 2 in order to prevent the cylindrical contact member 5 from swinging inside the stick body 2. It is set up. Further, a screw-in cap 7 is attached to the base end of the electrical signal stick body 2 to close the opening thereof.

On the other hand, the conductive wire 4 and the cylindrical contact member 5
One end of a connection cord 8 is connected to each of the base ends 4a, 5a, and the other end of the connection cord 8 is connected to a musical tone for producing a predetermined musical tone when the striking body 1 is struck or rocked. It is connected to the generator 9. This musical tone generating device 9 can not only generate a predetermined musical tone based on the impact of the striking body 1, but also generate a predetermined musical tone by pressing a plurality of drum pads 10 provided on the upper part of the device main body. too,
In addition, as in the case of a normal keyboard instrument, the keyboard section 11
A predetermined musical tone can also be produced by pressing each key provided on the keyboard.

Next, a circuit configuration for generating a predetermined musical tone based on the impact of the impacting body 1 will be explained with reference to FIG.

As shown in FIG.
F”. ) 12 is provided, and this
The set input terminal S of the RSF/F 12 receives a signal generated based on the ON operation of the switch part 13 composed of the conductive wire 4 and the cylindrical contact member 5 when the above-mentioned impacting body 1 hits. An electrical signal is input,
This RSF/F12 enters the set state. this
The output terminal Q of the RSF/F12 has a chattering time (t ) is connected to the timer circuit 14 for timing the key-on signal.
Control so that a predetermined musical tone is produced from
A CPU (central processing unit) 16 is connected. The striking body 1 is connected to the output terminal of the timer circuit 14.
In order to prevent the generation of unnecessary musical sounds caused by the chattering phenomenon caused by the vibration of the conductive wire 4, when the first strike of the striking body 1 is made, Based on the first key-on signal generated at the time, a carry signal (reset signal) is output after a predetermined time, that is, a chattering time. This carry signal is
Input to reset input terminal R of RSF/F12,
Therefore, this RSF/F 12 enters a reset state and becomes able to accept input from the switch section 13 again. As mentioned above, the timer circuit 14 includes:
The purpose is to count the chattering time (t) from the time of generation of the key-on signal generated based on the final impact of the striking body 1, and this time interval (t) is determined by a predetermined time interval (t) sent from the CPU 16. It is set based on a preset time value (p). This time interval (t) is set in consideration of both the time interval required for repeated hits with the striking body 1 within a short period of time and the time interval of chattering. That is, this time interval (t) is
Without considering the time interval required for consecutive hits of the striking body 1,
If the setting is too long, the setting will be based on the first key-on signal accompanying the impact of the impacting body 1, etc.
Since the set state of RSF/F12 becomes correspondingly longer, even if a second key-on signal occurs within a short time due to the chattering phenomenon,
It is possible to prevent the second key-on signal from being sent to the CPU 16 side, and therefore, it is possible to reliably prevent musical tones from being generated from the musical tone generating section 15, which is convenient, but short-term. Even in the case where the striking body 1 is hit two or more times in succession at an interval of The musical tone generating section 15 will no longer be able to generate a predetermined musical tone in response to repeated hits. Therefore, timer circuit 1
The time interval (t) of the timing operation in No. 4 is set to a range that is greater than or equal to the chattering time interval (t ₁ ) and less than or equal to the minimum time interval (t ₂ ) during a typical continuous hit. In this embodiment, the CPU 16 is provided with a switch 17 for variably controlling the time interval (t) of the time measurement operation of the timer circuit 14 to an arbitrary time interval manually or by stepping on the foot. .

The above-mentioned musical sound generation section 15 is connected to a PCM sound source ROM 18 that permanently stores sound source data such as predetermined percussion instrument sounds and sampled sounds using a PCM (pulse code modulation) method. an address control unit 19 that reads and controls sound source data stored in the sound source data according to control data from the CPU 16 based on a key-on signal generated when the striking body 1 hits, etc.; and control from the address control unit 19; according to data
The sound system 20 generates a corresponding predetermined musical tone based on the sound source data read from the PCM sound source ROM 18.

<Operation of the first embodiment> Next, the operation of the electronic percussion instrument according to the first embodiment having the above configuration will be explained.

Now, after selecting and specifying a desired tone (for example, bass drum, snare drum, etc.) by switching the timbre selection switch 23, if you hit or shake the striking body 1, you will hear the sound provided inside the striking body 1. The conductive wire 4 vibrates, and its free end 4b comes into electrical contact with the cylindrical contact member 5. Then, with the electrical contact, the switch section 13 made up of the conductive wire 4 and the cylindrical contact member 5 is turned on, and a predetermined electrical signal is output from the switch section 13. The electrical signal output from the switch section 13 is transmitted to the musical sound generator 9 via the connection cord 8 wired between the striking body 1 and the musical sound generator 9.
Input to set input terminal S of RSF/F12,
This RSF/F12 is set to a set state. Therefore, depending on the set state, RSF/F12
A key-on signal is output from the output terminal Q of , and the key-on signal is input to the timer circuit 14 and also to the CPU 16 . Based on the key-on signal input to the CPU 16, the CPU 16 outputs musical tone control data to the address control section 19. Therefore, the address control unit 19
Address control data is output to the sound source ROM 18, and according to the address control data, the PCM
The sound source data stored in the sound source ROM 18 is read, and the sound source data is transmitted to the sound system 20.
is input for. Therefore, the speaker SP (see FIG. 1) that constitutes this acoustic system 20
From this, percussion instrument sounds and the like are emitted.

On the other hand, when a key-on signal based on the impact of the striking body 1 is input to the timer circuit 14, the timer circuit 14 is activated for a time corresponding to a preset value preset based on the operation of the switch 17 for setting the preset value. After counting the time, a carry signal is output to the RSF/F12 to reset the RSF/F12.
By the way, when the striking body 1 is struck once, etc., the conductive wire 4 chatters with respect to the cylindrical contact member 5 based on the striking force etc., and they come into electrical contact with each other, thereby causing the switch part 13 Multiple electrical signals may be output in a short period of time. However, even if such a situation occurs, the timer circuit 14 outputs a carry signal.
Since the plurality of electrical signals outputted until the RSF/F12 enters the reset state are not outputted from the RSF/F12 as a key-on signal, generation of unnecessary musical tones due to the chattering of the switch section 13 is prevented. be able to. Also, the above
After the RSF/F12 has been reset, if the first blow of the striking body 1 is repeated, the electrical signal from the switch section 13 is set to the RSF/F12, and as a result, the key-on signal is output from the RSF/F12. Therefore, a predetermined musical tone is emitted from the speaker SP of the audio system 20 based on this key-on signal, similar to the operation described above.

<Structure and operation of second embodiment> Next, FIG. 4 is a partially omitted sectional view showing a second embodiment of the present invention.

In this embodiment, a dome-shaped tip portion 2B is screwed and attached to the tip of a cylindrical stay main body 2A, and a cylindrical contact point that is electrically contacted with a conductive wire 4 is provided inside this tip portion 2B. The member 5A is disposed via the wire holding member 3A.

When configured in this way, the contact member 5A
Since the conductive wire 4 can be formed shorter in the axial direction than in the first embodiment, not only can the material cost be reduced by that amount, but also the tip part 2B can be attached and detached from the stake main body 2A. Also, the work of assembling the contact member 5A can be performed quickly and reliably.

<Structure and operation of third embodiment> Next, FIG. 5 is a partially omitted sectional view showing a third embodiment of the present invention.

In this embodiment, a cylindrical contact member 5B that is in electrical contact with the conductive wire 4 is placed inside a dome-shaped tip portion 2B attached to the tip of the simple stick body 2A. A through hole 3 provided through the wire holding member 3B and provided in the wire holding member 3B.
An annular elastic lip portion 3 on the inner circumference a for damping unnecessary vibrations of the free end 4b of the conductive wire 4.
b is integrally molded.

With this configuration, unnecessary vibrations (chattering) of the conductive wire 4 that may occur when the striking body 1 is struck, etc. can be reliably and stably suppressed by the elastic force of the annular elastic lip portion 3b. can be braked.

<Structure and operation of fourth embodiment> Next, FIG. 6 is a partially omitted sectional view showing a fourth embodiment of the present invention.

In this embodiment, as in the case of the third embodiment, a cylindrical contact member 5C is placed inside a dome-shaped tip portion 2B attached to the tip of a cylindrical stay main body 2A. The wire holding member 3B is provided with an annular elastic holding lip portion 3c projecting from the end of the through hole 3a formed in the wire holding member 3B into the through hole 3a. The elastic holding lip portion 3c elastically holds the conductive wire 4A which is in electrical contact with the contact member 5C. The elastic holding lip portion 3c is formed to have a predetermined hardness that prevents the conductive wire 4A from chattering when the stick body 2A is hit.

When configured like this, with a simple configuration,
It is possible to reliably prevent the generation of unnecessary musical sounds due to chattering when the striking body 1 hits, etc.

<Structure and operation of fifth embodiment> Next, FIG. 7 is a partially cutaway sectional view showing a fifth embodiment of the present invention.

In this embodiment, a coil spring 21 is stretched between the tip of the dome-shaped tip portion 2B and the free end 4b of the conductive wire 4, and a cylindrical spring is attached to the base end 4a of the conductive wire 4. Static body 2A
An adjuster 22 is screwed into the cap 7 which is attached to the end of the cap.

In this case, the tension of the coil spring 21 can be adjusted appropriately by appropriately rotating the adjuster 22 prior to the striking of the striking body 1. The tension 21 can reliably prevent unnecessary bouncing (chattering) of the conductive wire 4 when the striking body 1 hits the ball.

<Modifications> In each of the above embodiments, a case has been described in which the switch section 13 is turned on by the vibration generated when the striking body 1 is struck to generate a predetermined musical tone, but the present invention is not limited to this example. Even when the striking body 1 is swung at a predetermined speed, the same actions and effects as in each of the embodiments described above can be obtained. Further, in each of the embodiments described above, a case has been described in which the conductive wire 4 is used as an example of the conductive member, but the present invention is not limited to this example, and a long conductive coil spring may be used. When such a conductive coil spring is used, not only can a more reliable conduction state be obtained compared to the case where the conductive wire 4 is used, but also the conductive coil spring itself has a buffering effect. Since it has a function, it has the effect of preventing damage etc. when the conductive coil spring comes into contact with the contact member. Further, in the embodiment described above, a case has been described in which a predetermined musical tone is generated only based on the key-on signal generated when the striking body 1 makes the first strike, etc., but this is not limited to this example.
An electric signal generated by chattering due to vibration (bounce) of the conductive wire may be picked up as a key-on signal, and a predetermined musical tone may be generated based on the key-on signal. When configured in this way, 1 of the striking body 1
A plurality of musical tones can be obtained continuously based on the percussion of the percussion instrument, and percussion instrument performance can be performed with even more variety. Furthermore, in this embodiment, a connection cord 8 is wired between the striking body 1 and the musical tone generating device 9 for supplying the electric signal from the switch section 13 to the musical tone generating device 9.
In order to increase operability, the striking body 1 is provided with, for example, a transmitter that transmits FM radio waves, and a musical tone generator 9 is provided.
A wireless method may be adopted in which a receiving section for receiving the radio waves is provided on the side.

〔Effect of the invention〕

As is clear from the above description, according to the first invention, there is provided an operating member (the striking body 1 in the embodiment) capable of performing a striking operation or a swinging operation, and a When at least one of a striking force or a swinging force is applied to the member at a predetermined level or higher, the member becomes electrically conductive,
Electric signal generating means for generating an electric signal for starting acoustic signal generation (in the embodiment, wire holding members 3, 3
A, 3B, conductive wires 4, 4A, and cylindrical contact members 5, 5A, 5B, 5C, 5D), so it is possible to generate an electric signal for starting acoustic signal generation with a relatively simple configuration. Unlike conventional electronic percussion instruments, which use piezoelectric elements to generate electrical signals to start acoustic signal generation, this method ensures stable electrical signal generation without deterioration caused by changes over time. It is possible to obtain the desired acoustic signal continuously, so that the desired acoustic signal can be obtained for a long period of time. Further, according to the first invention, the electric signal for starting acoustic signal generation can be generated from the electric signal generating means not only when the operating member is struck but also when the operating member is shaken. Therefore, it is possible to generate an acoustic signal while mixing the striking operation and the swinging operation. Therefore, it is possible to perform percussion instruments with a wide variety of variations.

Further, according to the second invention, an operating member (in the embodiment, the striking body 1) that can be operated by a striking operation or a swinging operation.
, a sound generating means (musical sound generating device 9 in the embodiment) for generating a predetermined acoustic signal, and at least one of a striking force or a swinging force provided on the operating member and having a predetermined level or more of impact force or rocking force on the operating member. When an operating force is applied, the electrical signal generating means (in the embodiment, the wire holding members 3, 3A ，
3B, conductive wires 4, 4A, and cylindrical contact members 5, 5A, 5B, 5C, 5D), the sound should be generated from the sound generating means as in the case of the first invention described above. An electrical signal for starting generation of an acoustic signal can be stably generated with a relatively simple configuration.

Further, according to the third invention, the operating member (in the embodiment, the striking body 1), the sound generating means (in the embodiment, the
musical sound generator 9), electric signal generating means (in the embodiment, wire holding members 3, 3A, 3B, conductive wires 4, 4A, and cylindrical contact members 5, 5A, 5B,
5C, 5D), the sound generating means is provided with an acoustic characteristic selection means (in the embodiment, a timbre selection switch 23) for selecting the characteristics of the acoustic signal to be generated from the sound generating means. So,
A characteristic of the acoustic signal to be generated from the acoustic signal generating means is selected in advance by the acoustic characteristic selecting means, and an acoustic signal with the selected characteristic is generated based on the electric signal generated from the electric signal generating means. can be done.

Furthermore, according to the fourth invention, the operating member (in the embodiment, the striking body 1), the sound generating means (in the embodiment, the
musical sound generator 9), electric signal generating means (in the embodiment, wire holding members 3, 3A, 3B, conductive wires 4, 4A, and cylindrical contact members 5, 5A, 5B,
5C, 5D), between the electric signal generating means and the sound generating means, for transmitting an electric signal for starting acoustic signal generation generated from the electric signal generating means to the sound generating means. Since the electric signal transmitting means (in the embodiment, the connection cord 8, the transmitting section, and the receiving section) is provided, the operating member can be operated by striking or swinging at a place far away from the sound generating means. Therefore, percussion instruments can be played anywhere.

[Brief explanation of drawings]

FIG. 1 is a partially sectional perspective view showing a first embodiment of an electronic percussion instrument according to the present invention, FIG. 2 is a sectional view taken along the line -- in FIG. 1, and FIG. Electric circuit configuration diagrams for explaining connection relationships, FIGS. 4, 5, 6, and 7
The figures are partially omitted cross-sectional views showing second, third, fourth, and fifth embodiments of the present invention. 1...Blowing body, 2, 2A... Static body,
3, 3A, 3B... Wire holding member, 4, 4A...
Conductive wire, 5, 5A, 5B, 5C, 5D... Cylindrical contact member, 9... Musical sound generator.

Claims (1)

[Claims] 1. An operating member that can be operated by impact or swing;
It is provided on this operating member, and when at least one operating force of a striking force or a swinging force of a predetermined level or more is applied to the operating member, it becomes electrically conductive and generates an electrical signal to start generating an acoustic signal. an electrical signal generating means for generating an electric signal; the electric signal generating means includes an insulating holding member fixed inside the operating member; a base end thereof is fixedly held by the holding member; and the electric signal generating means is free. a conductive member whose end protrudes from the holding member; a contact member whose base end is fixedly held by the holding member and whose free end is held with a predetermined gap from the free end of the conductive member; An electronic percussion instrument characterized by: 2. The operating member includes a rod-shaped operating member main body in which the electric signal generating means is provided, a striking portion formed on an outer circumferential surface on one end side of the operating member main body, and an outer circumferential surface on the other end side of the operating member main body. 2. The electronic percussion instrument according to claim 1, further comprising: a grip portion formed in the shape of the grip portion. 3. The conductive member is formed into a long rod shape as a whole, and the contact member is formed into a cylindrical shape that surrounds the outer periphery of the rod-like conductive member while maintaining a predetermined gap. An electronic percussion instrument according to claim 1, characterized in that: 4. An operating member capable of a striking or swinging operation; a sound generating means for generating a predetermined sound signal; and a sound generating means provided on the operating member, which applies at least a striking force or a swinging force of a predetermined level or more to the operating member. an electric signal generating means that becomes electrically conductive when one operating force is applied and generates an electric signal for starting generation of an acoustic signal to be generated from the sound generating means; The generating means includes an insulating holding member fixed inside the operating member, a conductive member having a base end fixedly held by the holding member and a free end protruding from the holding member, and a base. An electronic percussion instrument comprising a contact member whose end is fixedly held by the holding member and whose free end is held with a predetermined gap from the free end of the conductive member. 5. The operating member includes a rod-shaped operating member main body in which the electric signal generating means is provided, a striking portion formed on an outer peripheral surface of one end of the operating member main body, and an outer peripheral surface of the other end of the operating member main body. 5. The electronic percussion instrument according to claim 4, further comprising a grip portion formed in the shape of the grip portion. 6. The conductive member is formed into a long rod shape as a whole, and the contact member is formed into a cylindrical shape that surrounds the outer periphery of the rod-like conductive member while maintaining a predetermined gap. An electronic percussion instrument according to claim 4, characterized in that: 7. An operating member capable of a striking or swinging operation; a sound generating means for generating a predetermined sound signal; and the operating member is provided with at least a striking force or a swinging force of a predetermined level or more on the operating member. an electric signal generating means that becomes electrically conductive when one of the operating forces is applied and generates an electric signal for starting generation of the acoustic signal to be generated from the sound generating means; and acoustic characteristic selection means for selecting a characteristic of an acoustic signal to be generated from the sound generating means, and the electric signal generating means is an insulating member fixed inside the operating member. a holding member; a conductive member having a proximal end fixedly held by the holding member and a free end protruding from the holding member; An electronic percussion instrument comprising a free end of a conductive member and a contact member held with a predetermined gap therebetween. 8. The electronic percussion instrument according to claim 7, wherein the acoustic characteristic selection means is a plurality of timbre selection means for selecting the timbre of the acoustic signal to be generated from the sound generation means. 9. The operating member includes a rod-shaped operating member body in which the electric signal generating means is provided, a striking portion formed on an outer circumferential surface of one end of the operating member body, and a striking portion formed on an outer circumferential surface of the other end of the operating member body. 8. The electronic percussion instrument according to claim 7, further comprising a grip portion having a grip portion. 10 The conductive member is formed into a long rod shape as a whole, and the contact member is formed into a cylindrical shape that surrounds the outer periphery of the rod-shaped conductive member while maintaining a predetermined gap. An electronic percussion instrument according to claim 7, characterized in that: 11. An operating member capable of a striking or swinging operation; a sound generating means for generating a predetermined sound signal; and a sound generating means provided on the operating member, which applies at least a striking force or a swinging force of a predetermined level or more to the operating member. an electrical signal generating means that becomes electrically conductive when one operating force is applied and generates an electrical signal for starting generation of an acoustic signal to be generated from the acoustic signal generating means; the electrical signal generating means and the acoustic signal generating means; and an electric signal transmitting means provided between the electric signal generating means and the electric signal transmitting means for transmitting an electric signal for starting acoustic signal generation generated from the electric signal generating means to the sound generating means, The electrical signal generating means includes an insulating holding member fixed inside the operating member, and a conductive member having a base end fixedly held by the holding member and a free end protruding from the holding member. and a contact member whose base end is fixedly held by the holding member and whose free end is held with a predetermined gap from the free end of the conductive member. 12 The conductive member is formed into a long rod shape as a whole, and the contact member is formed into a cylindrical shape that surrounds the outer periphery of the rod-like conductive member while maintaining a predetermined gap. An electronic percussion instrument according to claim 11, characterized in that: 13. The electronic percussion instrument according to claim 11, wherein the electric signal transmitting means is a connection cord having one end connected to the electric signal generating means and the other end connected to the sound generating means. . 14 The electric signal transmitting means includes a transmitting means for transmitting an electric signal for starting acoustic signal generation generated by the electric signal generating means as a radio wave, and a transmitting means for receiving the radio wave transmitted from the transmitting means and transmitting the electric signal for starting the acoustic signal generation. 12. The electronic percussion instrument according to claim 11, further comprising receiving means for outputting an electric signal for starting generation of an acoustic signal to be generated from the means. 15 The operating member includes a rod-shaped operating member main body in which the electric signal generating means is provided, a striking portion formed on an outer circumferential surface on one end side of the operating member main body, and an outer circumferential surface on the other end side of the operating member main body. 12. The electronic percussion instrument according to claim 11, further comprising: a grip portion formed in the shape of the grip portion.