JPS62278594A - Electronic percussion instrument - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention [Technical Field of the Invention] The present invention relates to an electronic percussion instrument that generates a desired musical tone based on the impact or rocking of a rod-shaped impacting body.

[Prior art]

As a conventional electronic percussion instrument of this kind, for example, one disclosed in Japanese Utility Model Publication No. 59-5912 is known. According to this electronic percussion instrument, a piezoelectric element is installed at the tip of the drumstick, and the vibration generated when the drumstick is struck is converted into an electric signal by the piezoelectric element and taken out. A desired musical tone can be emitted from the speaker based on the impact of the impacting body.

[Intermediate point of conventional technology]

However, according to the conventional electro-percussion instrument mentioned above, the piezoelectric element that generates the electrical signal for musical tone generation is relatively expensive, so not only does the electronic percussion instrument itself become expensive, but the piezoelectric element also deteriorates over time. It has the disadvantage that it easily deteriorates due to physical changes, and it is not possible to obtain an electrical signal at a predetermined level for a long period of time, making it impossible to obtain the desired musical tone.Furthermore, conventional electronic percussion instruments , only when the drumstick is struck, a predetermined electric signal is detected from the piezoelectric element, and the signal is transmitted to produce the desired musical tone. Therefore, it is difficult to strike or shake the drumstick. While doing so,
The drawback is that it is not possible to perform percussion instruments with a wide variety of variations, such as obtaining a desired musical tone.

[Purpose of the invention]

This invention was made to eliminate these conventional drawbacks, has a relatively simple configuration, and therefore,
It is possible to obtain an electronic percussion instrument that is inexpensive, can reliably obtain a stable electric signal, can therefore obtain the desired musical tone for a long period of time, and can perform percussion instruments with a wide variety of variations. purpose.

[Key points of the invention]

In order to achieve these objects, the present invention causes a rod-shaped striking body to turn on at least when the striking body is struck or oscillated to generate an electric signal for producing a predetermined musical tone. The key point is that an electric signal generating means is provided for this purpose.

〔Example〕

Embodiments of the present invention will be described below with reference to FIG.

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

In FIG. 41, a rod-shaped striking body 1 that is struck or swung during performance is approximately the same size as a conventional drumstick.
They are formed with the same appearance and shape.

The stick body 2 constituting this striking body 1 is a second
As shown in the figure, the inside is hollow, and the inside of the stick body 2 on the grip side is made of rubber, plastic, etc. A wire holding member 3 made of If edge material is press-fitted and fixed. A base end 4a of a conductive wire 4 protruding toward the distal end of the stick body 2 is embedded in the axial center of the wire holding member 3. Further, a proximal 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 in the wire holding member 3 so as to surround the conductive wire 4. . At the tip 5b of this cylindrical contact member 5, there is a free latch of the conductive wire 4.
7J4b, an annular contact 5C having a predetermined inner diameter dimension (1) is integrally formed to ensure reliable and stable electrical contact. Note that an annular bushing 6 is interposed between the outer periphery 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. Furthermore, a screw-in cap 7 for closing the opening M is attached to the base y1 of the stick body 2.

On the other hand, a part of a connection cord 8 is connected to each base end 4a+5a of the conductive member 4 and the cylindrical contact member 5, and the other end of this connection cord 8 is connected to the base end 4a+5a of the conductive member 4 and the cylindrical contact member 5. It is connected to a musical tone generator ff19 for generating a predetermined musical tone during rocking. This musical tone generator fR9 is
In addition to being able to generate a predetermined musical tone based on the impact of the striking body 1, it is also possible to generate a predetermined musical tone by pressing a plurality of drum pads 10 provided on the upper part of the device main body. As in the case of a keyboard instrument, a predetermined musical tone can be generated by pressing each key provided in the fRm section 11.

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

As shown in FIG. 3, inside the musical tone generator 9, R8
A type flip-flop circuit (hereinafter referred to as 8F/FJ) 12 is provided, and this R, SF/F'12 set-up S is equipped with a flip-flop circuit (hereinafter referred to as 8F/FJ). Here, the 'wL signal generated based on the ON operation of the switch section 13 composed of the conductive wire 4 and the cylindrical contact member 5 is input, and the Cl7)kLS l'/F 12 is set to the set state. . The output terminal Q of this R8F/F12 has a chattering time (( A CPU (Central Processing Unit) 1 is connected to a timer circuit 14 for timing t), and controls the musical tone generator 15 to generate a predetermined musical tone based on the key-on signal.
6 is connected. From the output terminal of the timer circuit 14, when the striking body 1 is struck once, the conductive wire 4 is
In order to prevent the generation of unnecessary musical sounds caused by the chattering phenomenon that accompanies the lifting movement of the frog, when the first blow of the striking body 1 is made, the first key-on signal generated by the frog at that time is used. After a predetermined time, that is, a chattering time, a carry signal (reset signal) is output.

This carry signal is input to the reset input terminal chill of the R8F/F12, so that the SF/F12 enters a reset state and again accepts the input from the switch section 13 and becomes capable of gf. As described above, the timer circuit 14 counts the chattering time (t) from the time of generation of the key-on signal generated based on the first impact of the impacting body 1, etc., and this time interval (t) is ,CPU
A predetermined preset time value (pJ
Set based on. This time interval (t) is equal to the time required to hit the striking body 1 repeatedly in a short period of time.
It is determined by considering both the interval of [ and the chattering time interval. That is, this time interval (t
) is set too long without considering the time 1'IJ1 required for the striking body 1 to hit repeatedly, the striking v, 48
R8F set based on the first key-on signal accompanying
/The set state of F12 becomes correspondingly longer, so even if a second key-on signal occurs within a short time due to chattering during that time, the second key-on signal will not be sent to the CPU 16 side. You can do it like this,
Therefore, it is possible to reliably prevent musical sounds from being generated from the musical sound generating section 15, which is convenient. In this case, a situation occurs in which the key-on signal associated with the second consecutive hits is not sent to the CPU 16, and therefore, based on the key-on signal, the musical tone generating section 15 cannot generate a predetermined musical tone associated with the consecutive hits. Therefore, the time interval (+) of the timing operation of the timer circuit 14 is set to a range that is greater than or equal to the chattering time interval (11) and less than or equal to the minimum time interval (t2) during a general continuous hit. In this embodiment, the CPU 16 is provided with the time interval (t) of the time measurement operation of the timer circuit 14.
Method 1: A PCMf source ROM 18 that permanently stores sound source data such as predetermined percussion instrument sounds and sampled sounds; The sound source data stored in the PCMf source ROM 18 is processed by the CPU based on the key tone/signal generated when the striking body 1 hits, etc.
Address i'1%J to be read and G controlled according to control data from 16? xJ Department 19 and this address! Ti
(J? PCM according to control data from J'J section 19
Based on the f-syllable data read from the sound source 0M18,
The sound system 20 generates a corresponding predetermined musical note.

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

Now, switch the tone selection switch 23 to select the desired tone (-
For example, after selecting and specifying the bass drum, snare drum, etc., hit the striking body 1, or hit the i! fM, the conductive wire 4 provided inside the striking body 1 vibrates, and its free end 4b comes into electrical contact with the cylindrical contact member 5. Then, in response to the electrical gutter contact, the switch section 13 composed of the four-permissive wire 4 and the cylindrical contact member 5 is turned on, and an electric signal of F4r constant is output from the switch section 13. Output. The electric signal outputted from the switch unit 13 is sent to 12 set input terminals S to the box SF/ in the musical sound generating device 9 via a connecting hood 8 arranged between the striking body 1 and the musical sound generating device f119. and this u8F/1”
12 is set. Therefore, in accordance with the set state, a key-on signal is output from the output terminal Q of the FLSF/F12, and the key-on signal is transmitted to the timer circuit 1.
4 and is also input to the CPU 16. C
'Based on the key-on signal input to PU16I, the CP
U16 outputs musical tone control data to the address control section 19. Therefore, the address control unit 19 outputs address control data to the PCMf source ROM 1s, reads out the sound source data stored in the PCM9 source ROM 1s according to the address control data, and the sound source data is transferred to the sound source system 20. is input for. Therefore, the speakers SP (
'Refer to Figure M1), the sounds of percussion instruments, etc. are emitted.

On the other hand, when a key-on signal (key-on signal) is manually inputted to the timer circuit 14 based on the batting ticket of the striking body 1, the timer is The circuit 14 counts the time, and after counting the time, the carry signal 7iR8f+'
/F12 to reset the R8F/F12.

By the way, when the striking body 1 hits once, etc., the striking force etc. 1
Based on this, the conductive wire 4 chatters against the cylindrical contact member 5, causing them to come into electrical contact with each other, and as a result, the switch section 13 may output an antinodal electrical signal in a short period of time. . But 4 like this! Even if an error occurs, the electrical signal output from the timer circuit 14 outputs the carry signal until the u8F/l"12 enters the reset state will be used to turn the key on (i) from the R8F/F12. Since the switch unit 13 is not output as
This makes it possible to prevent unnecessary musical tones from occurring due to chattering. Further, after the reset state of R8F/F12, when the first blow of the striking body 1 is repeatedly struck, the air signal from the switch [13 is usF/F1
2t is set, and as a result, a key-on signal is output from this S set 1/F12, so similarly to the operation described above, the fla is set based on this key-on No. 14.
A predetermined musical tone is emitted from the speaker SP of the t-system 20. Structure and operation of the second embodiment> Next, FIG. 4 is a partially omitted sectional view showing the @2 embodiment of the present invention. It is.

In this example, at the tips of the two cylindrical stick bodies,
Dome-shaped chip I! 62B is screwed and attached, and five cylindrical contact members that are in electrical contact with the conductive wire 4 are placed inside the tip portion 2B via three wire holding members.

With this configuration, the five contact members can be formed shorter in the axial direction than in the first embodiment, so not only can the material cost be reduced accordingly, but also the length of the tip portion 2B can be reduced accordingly. Since the stick body can be attached and detached by two people, the conductive wire 4 and the five contact members can be assembled 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 tips of two cylindrical stick bodies. The wire rod holding member 3B is disposed through the wire rod holding member 3B.
An annular elastic lip portion 3b for damping unnecessary vibrations of the free end 4b of the conductive wire 4 is integrally molded on the inner periphery of the through hole 3a provided at B.

When configured in this way, unnecessary vibration (chattering) of the conductive wire 4 that occurs when the striking body 1 hits, etc.
8. Structure and operation of the fourth embodiment that enables reliable and stable braking by the elastic force of the annular elastic lip portion 3b> Next, Fig. 6 shows a fourth embodiment of the present invention. It is a partially omitted sectional view.

In this example, as in Example IIJ pA3,
A cylindrical contact member 5C is disposed inside the dome-shaped tip portion 2B, which is layered on the tips of the two cylindrical stick bodies, via a rubber-made cylindrical wire holding member 3B. but,
An annular elastic holding lip portion 3C is integrally formed that projects from the end of the through hole 3a formed in the wire holding member 3B to the inside of the through hole 3a, and this elastic holding lip portion 3C is connected to the nU contact member 5C. The elastic holding lip portion 3C elastically holds the four conductive wires that are in electrical contact with the stick body.The elastic holding lip portion 3C prevents the four conductive wires from chattering when hitting the two stick bodies. It is formed to a predetermined hardness.

When configured in this way, the leakage body 1 can be easily configured.
This makes it possible to reliably prevent the generation of unnecessary musical sounds due to chattering when playing or the like.

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

This fruit m+! In A, the tip of the dome-shaped tip portion 2B and the conductive wire 4 are free! 1114b, and an adjuster 22 that is screwed onto the base end 4a of the conductive wire 4 and the cap 7 that is layered on the ends of the two cylindrical stick bodies. is screwed on.

In this case, the tension of the coil spring 21 can be adjusted appropriately by appropriately rotating the adjuster 22 before the impact body 1 hits. Due to the tension, the conductive wire 4 is prevented from unnecessary bouncing (
chattering) can be reliably prevented.

Modifications> In each of the above embodiments, a case has been described in which the vibration generated when the striking body 18 is struck turns on the switch section 13 to generate a predetermined musical tone, but the present invention is not limited to this example. Even when the striking body 1 is moved at a predetermined speed, the same actions and effects as in each of the above embodiments 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 4′lIi coil spring is used, compared to when a conductive wire 4 is used,
Not only can a more reliable conduction state be obtained, but the conductive coil spring itself has a buffering function, so
This has the effect of preventing damage and the like when the conductive coil spring comes into contact with the contact member. Furthermore, in the embodiment described above, a case has been described in which a predetermined musical tone is generated only based on a key-on signal generated when the striking body 1 hits the first time, etc., but the present invention is not limited to this example. Wire vibration 11) The electric signal generated by chattering due to J (bound) may be picked up as it is as a key-on signal, and a predetermined musical tone may be generated based on the key-on signal. In this case, a plurality of musical notes f can be obtained continuously based on a single strike of the striking body 1, and even more varied percussion instrument performances can be performed. Furthermore, in this embodiment, a connecting hood 8 is disposed 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. , operability”
In order to achieve this, a wireless system may be adopted in which the striking body 11 is provided with a transmitting section that transmits, for example, FM radio waves, and a receiving section that receives the radio waves is provided on the tone generator 9 side.

〔Effect of the invention〕

As is clear from the above description, the present invention includes a rod-shaped striking body 1, and an electric signal generating means for generating an electric signal for generating a predetermined musical tone by turning on when the striking body is struck, etc. Since it has a relatively simple structure and is therefore inexpensive, it is possible to reliably obtain a stable electric signal, and therefore it is possible to provide the desired musical tone for a long period of time. You can, and in addition to hitting the hitting body, you can
Even when you shake it, you can get a predetermined musical tone, so it has various excellent effects, such as being able to perform a percussion instrument performance with a wide variety of variations.

4. Simple explanation of Pctl of PALIfl Figure 1 is a partially sectional perspective view showing the first embodiment of this electronic percussion instrument, Figure 2 is a sectional view taken along the line ■-■ in Figure 1, and Figure 3 The figure is a 1itz-like circuit configuration diagram for explaining the electrical connection between the striking body and the musical sound generating device. 3rd, 4th,
and FIG. 9 is a partially omitted cross-sectional view showing each of the fifth embodiments.

1...Batter body 2.2 people...Stick body 13.3 people, 3B
...Wire holding member, 4.4A... Conductive wire, 5.5A, 5B, 5C, 5D... Cylindrical contact member, 9... Musical sound generator.

Claims (6)

[Claims] (1) Electricity for generating a predetermined electric signal in the rod-shaped striking body that is turned on at least when the striking body is struck or when the striking body is swinging, causing the musical tone generating device to generate a desired musical tone. An electronic percussion instrument characterized by being provided with a signal generating means. (2) The electric signal generating means includes a stick body having a hollow interior, a holding member fixed to the inside of the stick body on the grip side, and a conductive member protruding from the holding member toward the distal end side of the stick body. An electronic percussion instrument according to claim 1, comprising a conductive member and a cylindrical contact member electrically contacted with the free end of the conductive member. (3) The electric signal generating means includes a stick body having a hollow interior, a holding member fixed to the inside of the stick body on the grip side, and protruding from the holding member toward the distal end side of the stick body. a conductive member;
an insulating elastic member fixed inside the tip side of the stick body so as to surround the free end of the conductive member; and an annular contact member embedded in the insulating elastic member and electrically contacting the conductive member. An electronic percussion instrument according to claim 1, comprising: (4) The electronic percussion instrument according to claim 3, wherein the insulating elastic member has an annular holding lip portion that elastically holds the free end of the conductive member. (5) The electric signal generating means includes a stick body having a hollow interior, a cylindrical insulating elastic member fixed inside the tip side of the stick body, and an insulating elastic member extending from one axial end of the insulating elastic member. an elastic holding part extending into the shaft hole of the member; a conductive member having one end elastically held by the elastic holding part; and a conductive member so as to be in electrical contact with the free end of the conductive member. The electronic percussion instrument according to claim 1, further comprising an annular contact member embedded within the insulating elastic member. (6) The electronic percussion instrument according to any one of claims 2, 3, 4, and 5, wherein the conductive member is a long conductive coil spring.