CN2084640U

CN2084640U - Portable electronic jazz drum

Info

Publication number: CN2084640U
Application number: CN 90210976
Authority: CN
Inventors: 马志正; 陈中兴; 马全实
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-05-12
Filing date: 1990-05-12
Publication date: 1991-09-11

Abstract

The utility model relates to a portable electronic jazz drum, and is composed of a drum body, a drum frame, a floor machine, and a sound box. The special characteristics of the utility model lies in that the drum body is provided with a plurality of striking plates having contact switches, and the striking plates are connected with a striking sound source circuit in the floor machine through a trigger signal connection wire. The floor machine is provided with a sound volume control pedal, a bass drum pedal, etc. The sound box is changed into a suitcase for the convenience of carrying, the bottom part of the utility model is provided with a loudspeaker, and the cover of the utility model can be provided with fittings of the drum body, the drum frame, the floor machine, etc. The utility model has small volume, abundant and pure timbre, low cost, and convenient carrying. The utility model is particularly suitable for the flowing show teams for convenient use.

Description

Portable electronic jazz drum

The utility model belongs to the electrophonic musical instrument class, particularly relates to the electroacoustic percussion instrument, produces the device of percussion music effect with the electronic technology method.Have two kinds on the market now: A can only produce different tones, the electroacoustic drum (often being added with glide) of tone color, the another kind keyboard-type electronic percussion device (as the electronic drum machine) that key is played that press...withes one's finger, the former is used in the special occasions atmosphere by the electroacoustic drum more, because of costing an arm and a leg, tone color is single, though the image of strike is arranged, but can not play out and step on hairpin in the jazz drum and open, close, tone colors such as snare drum, therefore utilization factor is lower, latter's tone color is changeable, effect is abundant, but can not be jazz drummer's playing method, sensation, the image performance applies to this above device, thereby range of application is less.Traditional jazz's drum expressive force is strong, but it is big, heavy to exist volume, cost height, drum head rapid wear, the shortcoming of pickup complexity.

The purpose of this utility model is to provide and utilize electronic technology to produce jazz's tympanitic note chromatic effect, and have the drummer to hit the electronics jazz drum that image, sensation, method and volume are little, cost is moderate, easy to carry.

The purpose of this utility model realizes by following means:

By drum body, drum frame, the portable electronic jazz that machine and audio amplifier form that lands is bulging.On its drum body several strike dishes are installed, the strike dish is connected with the drum body by resilient material, and between is equipped with the contact contactor.The drum body links by trigger pip on line and the percussion music source of sound integrated circuit that lands in the machine.Landing machine inside is shaped on percussion music source of sound surface-mounted integrated circuit and preceding, power amplifier plate, foot-operated volume control panel is installed landing the outside of machine, and the bass drum pedal is stepped on hairpin (opening) pedal.

Audio amplifier of the present utility model or portable box-shaped are installed with loudspeaker on its half (bottom), and second half inboard is shaped on the groove that supplies drum body, drum frame, lands machine, on line and other accessory.

Bulging body of the present utility model is at least one.

Below in conjunction with embodiment the utility model is described in detail.

Embodiment:

Description of drawings

Fig. 1 is the drum body and the machine face synoptic diagram that lands

Fig. 2 is the side view of Fig. 1

Fig. 3 is the outside synoptic diagram of audio amplifier

Fig. 4 is the schematic internal view of audio amplifier

Fig. 5 is an electrical schematic diagram of the present utility model

1 is the drum body among Fig. 1, and 2 are the strike dish, and 3 are the drum frame, 4 is the trigger pip on line, and 5 for landing machine, and 6 is the bass drum pedal, 7 is the volume control pedal, and 8 is loudspeaker, and 9 is spring, 10 are drum frame socket, and 11 is trigger pip on line socket, and 12 is signal input socket, 13 are supply socket, and 14 is power switch, and 15 is the signal accessory power outlet, 16 is voice box casing, and 17 is loudspeaker, and 18 is signal input socket.SD among Fig. 1 is a tenor drum, and SON is a snare drum, and HH is husky hammer, and LC is the tenor drum, and CL is a plate, and HC is a tenor drum, and SYN is a brass cymbals, and BD is a bass drum, K among Fig. 5 ₁Be bass drum switch, K ₂Be tenor drum switch, K ₃Be tenor drum switch, K ₄Be tenor drum switch, K ₅Be snare drum switch, K ₆Be brass cymbals switch, K ₇Be sand hammer switch, K ₈Be switching plate.

As can be seen, the bulging body (1) of present embodiment is one from accompanying drawing, and it is polygon geometric configuration, and housing can be shaped by integral molded plastic, also can be each drum separating making, and plug-in mounting is in aggregates again.Present embodiment is selected the former for use, so the position of each drum is relatively stable, and this is for the ease of playing and memory.Be shaped on seven strike dishes (2) on the drum body, form seven tone colors.Each strike dish (2) all is to be installed in it on housing of bulging body (1) and fixed installation contact switch on the adaptation position between strike dish (2) and the drum body (1) by three springs (9).Fixedly mount a bull socket (11) at the socket (10) that is shaped on an installation drum frame (3) on the back middle position of drum body (1) and on drum body (1) back.Socket (11) links by lead with the contact switch of each strike dish (2).

Landing of present embodiment is installed with bass drum (6) and volume control pedal (7) loudspeaker on the outside front of machine (5) from right to left successively.Side at its housing is shaped on signal accessory power outlet (15), and supply socket (13) and power switch (14) are installed percussion music source of sound surface-mounted integrated circuit, preceding, power amplifier plate in the internal fixation of its housing.Percussion music source of sound surface-mounted integrated circuit comprises bass drum mimic channel, tenor drum mimic channel, tenor drum mimic channel, tenor drum mimic channel, snare drum mimic channel, brass cymbals mimic channel, husky hammer mimic channel.Template die is intended circuit.Each tone color circuit, the contact switch that all passes through on signal input socket trigger pip on line (4) and each strike dish (2) or the pedal join.

For just carry, carry, audio amplifier of the present utility model is designed to portable container-type, be installed with by support in the base inside of suitcase and land the loudspeaker (17) that machine (5) is complementary, be shaped on the groove that supplies drum body (1), drum frame (3), lands machine (5) and the placement of other accessory on the inboard of its loam cake, each groove all is shaped on the belt of standing finish, and installs signal input socket (18) and wheel in the outside of casing.

Embodiment 2

Description of drawings

Fig. 6 is the bulging body of present embodiment and the synoptic diagram of machine of landing

Fig. 7 is the electric functional-block diagram of present embodiment

Among the figure A be bass drum, B for step on hairpin (opening), C be tenor drum, D be alto drum, E be tenor drum, F be tenor drum, G be snare drum, H for low small drum, I be high small drum, J be nation's dagger-axe, L be algol, M for clap one's hands, N is that the limit is hit, P is kappa sand, X for step on hairpin (closing), Q is the single face cymbals.

The bulging body of present embodiment is formed by two, and both connect by hinge, thereby it can be folded, and are convenient to deposit and carry.As can be seen, present embodiment can be played out 14 kinds of tone colors from accompanying drawing 6, lands two kinds of tone colors on the machine in addition, can play out 16 kinds of different tone colors altogether.

Fig. 5 has drawn and has implemented the circuit theory diagrams of 8 kinds of percussion music sources of sound of 1.Because of each percussion tone source circuit principle in the integrated circuit block of embodiment 2 is that same circuits has increased quantity with embodiment 1(, changed some component parameters in the circuit, comprise making it to form multiple tone color), so slightly write.All clappers circuit among Fig. 5 all adopt RC oscillator (comprising the many tone colors among the embodiment 2), are example with bass drum (BD) principle of work: triode T ₁₂Form oscillator Deng element, regulate VR during Triggerless ₃Make it be in the threshold oscillation state, (K switch when knocking BD strike card ₁Conducting) trigger pip VDD is through resistance R ₁, diode, R ₅₆K, C ₃₃Be added on T ₁₂Base stage makes T ₁₂The work of being excited forms tympanitic note oscillatory extinction process, the output of tympanitic note signal.Single face cymbals (Q) among 2 li of brass cymbals among the embodiment 1 (SYN), husky hammer (HH), snare drum (SDN) and the embodiment, the generation of stepping on hairpin sound equipments such as (open and closes) is all relevant with noise, principle of work is an example with brass cymbals (SYN), noise signal always is added in 103(C at ordinary times) above, (K switch in the time of on knocking brass cymbals (SYN) strike card ₆Conducting) trigger pip VDD is through circuit R ₆, diode R ₁M, 5.6K are added on T ₁₁Make an uproar during base stage and ring envelope and form back output.Each percussion sound signal all is pooled to V among Fig. 5 ₀₁, V ₀₂2 points, at last by preceding, power amplifier and loudspeaker (17) output, to hit card (be K to embodiment 2 from knocking ₉-K ₂₄) produce all processes principle of work to last sound equipment and be same as embodiment 1, so slightly write.Be that it gets the 2CW that just enters under the Zener breakdown state from the noisemaker schematic diagram in the dotted line among Fig. 5 ₁₄As noise tube, the white noise sound intensity, audio-frequency unit frequency spectrum enrich at this moment, as brass cymbals (SYN), sand is hammered (HH), the noise signal source of closing, opening tone colors such as hairpin into shape to white noise after amplifying.

When using the utility model, the portable case type audio amplifier is opened, drum body, drum frame are landed machine, trigger pip on line and other accessory take out.The drum frame is installed drum body back, will rouse body and land machine UNICOM, and the connection external power supply with the trigger pip on line, after turn on the power switch.When the strike dish that knocks with drum hammer on the bulging body, contacting, trigger pip connects the corresponding percussion music trigger end that lands in the machine through trigger pip separately, and related circuit is excited the work percussion sound and is produced, exported by loudspeaker behind preceding, power amplifier.

The utility model is in light weight, volume is little, be easy to carry, according to the tamber effect that traditional jazz's drum is arranged, and there is the drummer to hit image, sensation, method, and music, tonequality is pure, graceful, the big cost of volume amplitude is low, easily popularize, carry light characteristics, can replace the conventional attack musical instrument in multiple occasion, be applicable to specialty, amateurish theatre troupe, the troupe of especially flowing is convenient and practical.

Claims

1, a kind of portable electronic jazz drum, it by drum body, drum frame, land machine and audio amplifier and form, it is characterized in that by resilient material several strike dishes being installed on the drum body, between is installed contact switch, the drum body passes through the trigger pip on line mutually in succession with landing between the machine, landing machine inside is shaped on percussion tone source circuit and preceding, power amplifier, also is shaped on foot volume control panel and bass drum pedal on the housing of machine, steps on small cymbals (opening) pedal landing.

2, portable electronic jazz drum according to claim 1 is characterized in that described audio amplifier becomes portable box-shaped, is shaped on loudspeaker on the one half-shells, and the inboard system of second half housing is placed the groove that rouses body, drum frame, lands machine and on line.