JPS6319107Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a control device for a rotary vocal toy, which is particularly suitable for a merry-go-round and has a built-in electronic sound generator that reproduces and outputs a plurality of audio signals.

Conventionally, this kind of merry-go-round and other rotating vocal toys have a music box built into the main body that rotates a drum with pins installed and plays a melody by playing a vibrating valve facing the pin, and as the melody plays. A rotating body such as a decoration hanging below the main body is being rotated. However, the above-mentioned music box can usually only play one song, and the rotating body always rotates at a constant rate, making it extremely monotonous. In addition, because the movement and sound are monotonous, it is only suitable for specific usage conditions, and the range of use is limited, making it impossible to use it in a wide variety of ways, making it impossible to fully utilize its advantages.

SUMMARY OF THE INVENTION In view of the above drawbacks, an object of the present invention is to provide a rotating vocal toy that can generate a plurality of sounds and also change the speed of a rotating body in response to the sounds.

A feature of the present invention is that it includes a built-in electronic sound generator that reproduces and outputs a plurality of audio signals, and that the rotating body is rotated in response to each of the audio signals.

The present invention will be explained below with reference to illustrated embodiments. To describe the rotating vocal toy as a merry-go-round, in FIG. 1, the rotating vocal toy has a cylindrical main body 1, commonly known as a curved ball, on which a decorative rotating body 2 is suspended. The top of the main body 1 is configured to be attached to a ceiling or the like.

The main body 1 has a rotation transmission mechanism component, a motor M, a printed wiring board 4, and a switch built in a case 3 formed of a synthetic resin material or the like in a cylindrical shape, as shown in FIG. One hollow flange 5 of the rotation transmission mechanism A is rotatably supported by an operating shaft 6 on the inner lower side of the case 3, and a gear 5a is formed on the outer side of the upper end of the flange 5. The operating shaft 6 is mounted inside the case 3 so as to be vertically movable, and its lower side projects outward from a through hole in the case 3. A hook 61 is provided at the lower end of the operating shaft 6 to suspend the rotating body 2.
is attached. The operating shaft 6 within the flange 5 is urged upward by a spring 62, and is configured such that when the gear 5a is rotated by the motor M, the operating shaft 6 is rotated. A transmission lever 7 in the shape of a spring with a base end fixed within the case 3 is provided in the movement range above the operating shaft 6 so as to be able to be pushed up. The tip claw portion 7a of the transmission lever 7 faces the claw of the ratchet wheel 8.

The ratchet wheel 8 is rotatably mounted inside the case 3 via a shaft 81. The ratchet wheel 8 is provided with a plurality of pawls, which are rotated intermittently by the transmission lever 7. Further, a contact plate is provided coaxially with the ratchet wheel 8 and rotates together with the ratchet wheel, and the contact plate has tips of a plurality of brushes 91 having spring properties whose base ends are fixed to a support base 9 in the case 3. are in sliding contact to constitute a power switch _S0 , a selection switch _S1 , and a speed changeover switch _S2 .

The electronic sound generator 10 and amplifier 11 shown in FIGS. 3 and 4 are constructed on the printed wiring board 4, and a speaker 12 is attached to the case 3 at an appropriate position.

The control device for the rotary vocal toy is shown in FIG. 3, in which the electronic sound generator 10 and the motor M are supplied with power from the battery E through the power switch S0 and speed changeover switch _S2 , respectively, and the f terminal of the speed changeover switch _S2 is connected to the electric sound generator ₁₀ and the motor M. A resistor R is connected to the motor M, and the motor M is rotated at a low speed when the switch _S2 is switched to the f terminal. The above power switch _S0 ,
The selection switch S ₁ and the speed changeover switch S ₂ are configured so that when the drawstring 2a hanging downward from the center of the rotating body 2 is pulled, the operating shaft 6 is pulled down and each switch is switched in conjunction with each other. has been done.

As shown in FIG. 4, the electronic sound generator 10 includes a mode control 13, an address counter 14, a memory section 15, an oscillator 16, and a memory section 15.
two sets of programmable frequency dividers 17 connected to
18, envelope adding circuits 19 and 20 connected to programmable frequency dividers 17 and 18 and memory section 15, respectively, and a mixer 21. The output end of the mixer 21 is connected to the amplifier 11 and the speaker 12, and the volume of the speaker 12 is adjusted by a volume VR. The input terminal of the mode control 13 is connected to the selection switch _S1 .

The electronic sound generator 10 is a device that can automatically perform a melody by generating a melody using an electronic circuit, and information such as the pitch and length of the sound is stored in advance in the read-only memory of the memory section 15. According to this data, the output pulse of the oscillator 16 is divided by the programmable frequency dividers 17 and 18 to generate an AC voltage waveform with a frequency corresponding to each musical scale. Something that can be played, an electronic sound generator 1
0 is an integrated circuit made of digital circuits.
The memory section 15 stores a plurality of audio data, for example, programmed melody audio data for two songs, a lullaby and a light song, and rhythm data. The audio data is arbitrarily selected by the selection switch _S1 . Selection switch S ₁
is connected to the b terminal, the mode control 13 sends a signal corresponding to a predetermined song "light song" to the address counter 14 and read out by the memory section 15. The audio data in the memory section 15 is sequentially sent to the programmable frequency dividers 17 and 18 according to the control data of the address counter 14. The programmable frequency dividers 17 and 18 frequency-divide the reference signal generated by the oscillator 16 using the frequency division data from the memory section 15, and send scale signals to the envelope adding circuits 19 and 20. The envelope adding circuits 19 and 20 add envelopes as necessary to the scale signals generated by the programmable frequency dividers 17 and 18 using envelope adding signals from the memory section 15, thereby improving the auditory effect. After passing through the mixer 21, this signal is amplified by the amplifier 11 and outputted by the speaker 12 as an audio signal. The programmable frequency divider 17 and the envelope addition circuit 19 are in charge of the main melody of the melody, and the programmable frequency divider 18 and the envelope addition circuit 20 are in charge of the accompaniment of the melody and are played simultaneously to provide a richly musical audio signal. is configured to do so. When the selection switch _S1 is connected to the c terminal, another song "Lullaby" is played.

When a melody is played by the electronic sound generator 10 as described above, the speed selector switch _S2 is connected to the e terminal in the case of a "light song", so the motor M is rotated at high speed, and the rotating body 2 It also rotates at high speed in time with the song. When the melody is "Lullaby", the speed selector switch _S2 is switched to the f terminal and the motor M is rotated at a low speed, so the rotating body 2 is rotated slowly in time with the song, so as to make the infant sleepy. used for.

The selection switch _S1 and the speed changeover switch _S2 in the above description may be replaced with circuits using semiconductor elements such as transistors. Further, the control circuit using the resistor R that changes the rotational speed of the motor M may be replaced with a known speed control circuit. In addition to songs, the audio data stored in the memory section can also be the voices of insects or animals, the operating sounds of vehicles, etc. In addition to the merry-go-round, the rotating vocal toy described above may also be used for rotating vocal toys such as dolls and animals that move their hands, legs, etc.

Since the present invention is configured as described above, when the audio data is selected and switched, the rotational speed of the motor is changed in accordance with the audio data. At that time, the decoration rotates at a low speed, and the motor can be rotated at a high speed so that it can be played to a light tune during children's activities and the decoration moves actively at that time, so it can be used for multiple purposes. It can be adapted to a rotating vocal toy, and can fully demonstrate its advantages, especially as a merry-go-round. Furthermore, by storing a plurality of audio data, it is possible to generate a plurality of different electronic sounds, and it is possible to provide a rotating vocal toy that has great practical effects, such as being usable as a teaching material for emotional education. .

[Brief explanation of the drawing]

The drawings show a control device for the rotary vocal toy of the present invention, FIG. 1 is an external view of a merry-go-round which is an example of a rotary vocal toy, FIG. 2 is a cross-sectional side view of the main body of the merry-go-round, and FIG. 3 is a control of the rotary vocal toy. FIG. 4 is a block diagram of the electronic sound generator. 1... Main body (curved ball), 2... Rotating body (decoration body), 2
a... Drawstring, 3... Case, 4... Printed wiring board, 5... Flange, 6... Operating shaft, 62... Spring, 7... Transmission lever, 8... Ratchet wheel, 10
...Electronic sound generator, 11...Amplifier, 12...Speaker, 13...Mode control, 14...
...Address counter, 15...Memory section, 1
6... Oscillator, 17, 18... Programmable frequency divider, 19, 20... Envelope addition circuit, 2
1...mixer, A...rotation transmission mechanism, M...motor, _S0 ...power switch, _S1 ...selection switch, _S2 ...speed selection switch.

Claims (1)

[Scope of utility model registration request] An electronic sound generator that reads out the audio data from a memory section in which a plurality of audio data are stored and reproduces it as an audio signal, an amplifier that amplifies the audio signal of the electronic sound generator, and a speaker connected to the amplifier. , a selection switch coupled to the electronic sound generator for selecting the plurality of audio data; a motor for rotationally driving the rotating body; a speed changeover switch for switching the rotational speed of the motor; and a speed switching circuit for varying the rotational speed of the switch, the selection switch and the speed switching switch are interlocked, and when the audio data is selected and switched, the rotational speed is changed in accordance with each of the audio data. A control device for a rotating vocal toy.