CN2236141Y - Beat making device with conducting action - Google Patents

Abstract

The utility model relates to a tempo indicating device used for mastering music rhythms and speeds. The utility model comprises a sequential program distributor for controlling an oscillator and controlling a tempo counter to generate tempo indications. The output end of a sequential program controller is coupled with a power amplifier unit whose output end is connected with an electromagnet spool. The inner of an electromagnet is provided with a movable iron core combined with a swing arm. In the structure, the swing arm can be made into an animal's limb or a human's limb to achieve more vivid and visible tempo indications.

Description

The metronome of band commander action

The utility model relates to a kind of beat display device that is used to grasp music rhythm speed.The utility model comprises oscillator and is subjected to the sequential procedure divider of its control that the limbs that driven personage or animal by sequential procedure divider control electromagnet produce the beat indication action and the corresponding percussion music rhythm sound.

Metronome is the indispensable device that industries such as music learning or performance are used to grasp rhythm.Traditional metronome is to adopt mechanical clockwork spring to drive the mechanism of single pendulum, and this device can only send dull double vibrations and the tinkle of bells.Another kind is an electronic metronome, and it is with oscillator and constituted by the sequential procedure divider of its control, and produces the beat indication by sequential procedure divider control percussion music generator and light emitting diode.But what this metronome produced also only is dull and mechanical acousto-optic indication.The beat indication action that existing metronome produced is stiff, mechanical, and the beat that is produced is very not directly perceived, and performance and this breath-group indication of learning music are difficult for grasping, and operates also very inconvenient.

The purpose of this utility model provides a kind of prior art deficiency that overcomes, can produce the metronome of more directly perceived, vivid beat indication, this metronome can adopt animal appearance to utilize the action of animal limb to make the beat indication, perhaps, can adopt personage's appearance, produce the beat indication with touching like directorial action.The utility model can be different according to melody requirement, set a plurality of different rhythm tempos and rhythm type.As certain first melody is 4/4 to clap, and preceding 20 clap to per minute 56 and clap, and back 40 is clapped to per minute 60 and clapped, and last 30 to clap be 3/4 to clap, and tempo is become per minute 75 claps.More than require all can realize with this device.

The purpose of this utility model adopts following measure to realize: can change the pulse signal input timing program distributor of oscillation frequency, two output terminal is connected with the input of power discharging transistor, and the coil of power discharging transistor drive magnetic produces magnetic field.Be provided with movable iron core in the described electromagnet, and this iron core combines with swing arm.When sequential procedure divider output pulse signal, after power amplifier unit amplifies, it is acted on the electromagnet.Effect lower electromagnet at electric current produces magnetic force, and makes the movable core motion in it, drives the swing arm that combines with iron core and produces motion.The limbs of animal or the limbs of personage's appearance are made in available swing arm under this structure, thereby realize more vivid and beat indication intuitively.

Swing arm in the utility model can link with permanent magnet, and a magnetic pole of permanent magnet is near an end of the iron core of electromagnet, and opposite with close its pole polarity of permanent magnet during the energising of the magnetic pole of this end.When producing magnetic force under the effect of electromagnet at electric current, owing to the iron core of electromagnet with the opposite polarity reason of magnetic pole of close permanent magnet, electromagnet produces repulsion to permanent magnet, when coil blackout permanent magnet again with the iron core adhesive of electromagnet.Make permanent magnet drive swing arm and move up and down, this can make the action of swing arm more steady.

The utlity model has better effect for making, can be parallel with the percussion music generator on the output terminal of sequential procedure controller, this can follow the beat sound equipment when producing the beat indication.

Oscillator in the utility model and sequential procedure divider can adopt special-purpose beat generation integrated circuit, also can use chip microprocessor.

Because the utility model can show beat with the swing arm by solenoid actuated, and this swing arm can be made into the limbs of animal, perhaps, makes the limbs of personage's appearance, this can make the beat indication more vivid, lively, has interest.Particularly under situation described later, the action effect like conductor person is touched in the beat indication that device is produced, and makes the beat indication more directly perceived, is convenient to grasp, and this point is more useful to learning music and performance, performance.

Description of drawings

Fig. 1 is a theory diagram of the present utility model

Fig. 2 is swing arm driving principle of the present utility model and structural representation

Fig. 3 is circuit theory diagrams of forming embodiment with single-chip microcomputer of the present utility model

Below in conjunction with drawings and Examples the utility model is made detailed explanation:

(1) is the rhythm start-up circuit among Fig. 1, (13) be the clock pulse generating means, wherein (2) are that oscillator is produced in the fundamental oscillation signal input beat program distributor (3) by it, signal of output is given beat count device (7) after handle (3), and outputs signal to the demonstration that beat display (6) produces beat count by (7).Oscillator (2) changes its oscillation frequency by rhythm tempo regulator (4), realizes changing the purpose of tempo.Various rhythm type can be selected in the position that changes rhythm selector switch (5).The above is the existing common circuit of electronic metronome.Be in the output terminal of beat program distributor (3), to export one or two even more a plurality of pulse signal again in the utility model, this signal through power discharging transistor (14) or/and after (15) amplify, the coil of drive magnetic (11) is or/and iron core in (12) drives the limb action of personage or animal, at coil (11) or/and fly-wheel diode (17) is arranged in (12) loong shunt or/and (16) are used to eliminate the back-emf of electromagnet.As another kind of embodiment of the present utility model, also can be on the output terminal of beat program distributor (3) with magnet coil (11) or/and (12) percussion sound generators in parallel (8) or/and (9), percussion sound generator (8) is or/and the signal of (9) is input to power amplifier (10) and pronunciation device (16), makes when action is beaten time in generation the sound equipment with beat.As a kind of embodiment, (13) available existing special-purpose rhythm integrated chip replaces among Fig. 1.

(18) are swing arms among Fig. 2, and (20) are a fulcrum on it, fix at an end of fulcrum and the iron core (21) of electromagnet (19).When the coil of electromagnet (19) produces magnetic attraction iron core (21) during by electric current, move upward thereby drive swing arm, as shown position shown in the dotted line.Original position is got back in swing arm when coil (19) cuts off the power supply, and each cycle can be got a complete bat like this.The limbs of animal or human's thing appearance are made in available one or more this swing arms in the utility model, to realize the purpose of this utility model.

Swing arm among Fig. 2 (18) also can fix with permanent magnet, and the iron core adhesive mutually of magnetic pole of this permanent magnet and electromagnet, and permanent magnet and iron core join the magnetic pole of contravention during with energising the magnetic pole of electromagnet opposite, electromagnet produces repulsion to permanent magnet when electromagnet is switched on, and drives the swing arm campaign.During outage permanent magnet again with the iron core adhesive, the origin-location is got back in swing arm.

Fig. 3 is an embodiment of the present utility model:

(22) are that model is 8051 chip microprocessor chip among Fig. 3, its inside comprises (CPU) central processing unit, ALU (ALU), special register, timer and 4KROM (reading writing memory) and EPROM (but erasable read only memory), parallel interface and serial i/element circuits such as O mouth.About this metronomic watchdog routine and tempo display routine and beat count display routine, and the tempo program all is solidificated among the EPROM, by the interface circuit of single-chip microcomputer (22) timesharing of tempo code is input in (31), (32), (33) three code translators, through stroke decoding back by the tempo of (35), (36), (37) three charactrons demonstration per minutes.(24) be three, eight code translators.Its effect is to form keyboard [button (25)-(30)] sweep circuit with the P2.4-P2.7 of (22).Button (25) and (26) can be set tempo arbitrarily.Increase progressively by (25) tempo, successively decrease by (26) tempo.Also available potentiometer (49) is set simultaneously.(23) but be erasable read only memory, there is multiple rhythm type commonly used its inside.Can select different rhythm types arbitrarily with button (27).Button (28) can be set 10 different rhythm types with button (30) in the rhythm of a first melody and different musics, button (29) can be set 10 different rhythm tempos with button (30) in the rhythm of a first melody and different musics.

Control the output of percussion music generator (41) and (42) among Fig. 3 by the clock pulse of rhythm memory (23) output, be input to loudspeaker (48) and produce the rhythm sound equipment through power amplifier (43).The rhythm memory is also exported clock pulse triggering controllable silicon (44) or/and (45) make magnet coil (46) or/and (47) charged generation magnetic field sucks iron core simultaneously, and its principle of work is with shown in Figure 2.The beat count signal is input to code translator (34) by (22) timesharing, shows current which bat that proceeds to every trifle by charactron (38) after deciphering.Light emitting diode (39) can be used to be contained on the eyes or baton of animal with (40).Synchronizing pulse control by (23) output is luminous, produces the flashing signal of beat.

Claims (5)

1, a kind of metronome, comprise that oscillator is subjected to the sequential procedure divider of its control, and by the indication of sequential procedure divider control beat count device generation beat, the output terminal of described sequential procedure controller and the power amplifier unit of being characterised in that of the present utility model is coupled, and link to each other with magnet spool with the output terminal of power amplifier unit, the iron core of described electromagnet combines with swing arm.

2, metronome according to claim 1 is characterized in that described swing arm and permanent magnet link, and a magnetic pole of permanent magnet is near an end of the iron core of electromagnet, and the magnetic pole of this end is opposite with close its pole polarity of permanent magnet.

3, metronome according to claim 1 and 2 is characterized in that also being parallel with the percussion music generator on the output terminal of sequential procedure controller.

4, metronome according to claim 3 is characterized in that adopting in the utility model private section to send living integrated circuit.

5, metronome according to claim 3 is characterized in that adopting in the utility model the chip microprocessor circuit.

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