JPH07219527A - Music box with switch - Google Patents

Abstract

PURPOSE:To provide the inexpensive music box with a switch which can securely drive a desired external device in synchronism with the operation of the music box. CONSTITUTION:The music box(OG) which performs the speed adjustment releasing of the accumulated force of main spring and rotates a drum 2b is provided with a metallic contact piece 4 which is electrically insulated from other metallic members of the music box and comes into slide contact with the drum 2b and a metallic piece 5 which is connected to a diaphragm 3 having a vibration valve 3a engaging a pin 2d implanted in the peripheral surface of the drum 2b to constitute the switch. The switch is electrically turned ON or OFF each time the pin 2d and vibration valve 3a engage or leave each other as the drum 2b rotates and a trigger signal is inputted to an external driving circuit to drive an LED, etc.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved music box, and more particularly to a music box with a switch suitable for operating a predetermined device in synchronism with the ringing of the music box.

[0002]

2. Description of the Related Art There is a conventional full-fledged music box with a switch, which is turned on when the music box sounds, and turned off when it stops. I was trying to make the lamp blink. However, in this case, since the operating position of the switch is fixed, if the music box is stopped halfway, the switch will remain on, and there is a problem such as battery exhaustion.

[0003]

In order to solve this problem, a method in which an electric or mechanical timer is installed outside and the switch is turned off after a fixed time has elapsed since the music box stopped can be considered. However, according to this method, since the operating time of the music box is not constant, if there is no means for detecting the stop of the music box, there is a significant difference between the sounding of the music box and the operation time of the device or circuit controlled by the switch. I will get out.

An object of the present invention is to provide a music box with a switch that can drive a predetermined device in synchronization with the sounding and stopping of the music box.

[0005]

In order to achieve the above object, the present invention provides a rotary drum in which pins are planted according to a turn, a drive source for rotating the rotary drum, and engagement / disengagement with the pins. Then, in a music box having a vibration valve whose valve tip vibrates and becomes a sound source corresponding to the music piece, signal generating means for generating a signal in response to rotation of the rotary drum, and a predetermined device driven by the signal. A driving circuit is provided.

[0006]

When the music box operates, a signal is generated in response to the rotation of the rotary drum, and the predetermined device is driven by the signal, so that the operation of the music box and the operation of the device are surely synchronized.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention shown in the drawings will be described below. FIG. 1 shows an embodiment in which the present invention is applied to a music box configured to rotate the drum by releasing the stored force of all dances in a controlled manner. In the figure, reference numeral 1 is a frame, on which a drum portion 2 and a diaphragm 3 are supported. The drum portion 2 is a resin gear end plate 2a and a metal drum 2b.
And the end plates 2c made of resin, the resin members 2a and 2c are provided at both ends of the drum 2b, and are supported on the frame 1 at the both ends. The drum 2b and the frame 1 are electrically insulated from each other, and the gear end plate 2a is driven by the mechanism (not shown) in which the stored force of the total dance is released to adjust the speed to rotate the drum 2b. It has become. On the outer peripheral surface of the drum 2b, a plurality of metal pins 2d arranged according to a predetermined turn are planted, and a plurality of vibrating valves 3a formed in a vibration plate 3 in a comb shape are sequentially formed on the drum. It is adapted to mesh with each pin 2d according to the rotation of 2b. The pin 2d lifts the vibration valve 3a as the drum 2b rotates and then disengages the vibration valve 3a to give a bar vibration to the vibration valve 3a, thereby performing a sounding function as a music box. In the music box having the above-described structure, the present invention uses, for example, a switch having the following structure as a signal generating means for obtaining a trigger signal synchronized with the operation of the music box.

The switch is composed of a metal contact piece 4, a metal piece 5 and a lead wire 7. The metal contact piece 4 is always in sliding contact with the outer peripheral surface of the drum 2b in an electrically conductive state,
It is supported by the case 6. The metal piece 5 is screwed to the vibration plate 3 and is electrically connected to the vibration plate 3. Further, the lead wire 7 connects the metal contact piece 4 and the metal piece 5 to the start switch terminal 8 a of the external drive circuit 8.

The external drive circuit 8 is provided with a timer circuit 8b, etc. inside thereof, and when a trigger signal which changes from OFF to ON is inputted to the starting switch terminal 8a, the external drive circuit 8 starts its operation for a predetermined time. After that, the operation is stopped by the timer circuit 8b. For example, a plurality of LEDs are made to blink by the external drive circuit 8, and the operation is started by the above-mentioned trigger signal, and L is kept for several seconds.
It has the function of blinking ED and then automatically stopping.

FIG. 2A shows the above-mentioned switch in the ON state, that is, the metal contact piece 4, the drum 2b, the pin 2d, the vibration valve 3a,
The vibrating plate 3 and the metal piece 5 are in the conductive state, and FIG. 6B shows that the switch is in the off state, that is, the pin 2d and the vibration valve 3a are separated and the metal contact piece 4 and the metal piece 5 are not conductive. It is in a state.

FIG. 3A shows the electrical connection between the metal contact piece 4 and the metal piece 5, which is the external drive circuit 8.
It becomes a trigger signal to activate. The first ON state ON indicates a state in which the pin 2d of the music box (OG) and the vibration valve 3a are stopped while being engaged. When the music box (OG) starts playing, the drum 2b starts to rotate and the pin 2d and the vibration valve 3a are alternately engaged and separated. Therefore, while the music box is operating, the metal contact piece 4
An on / off state is alternately generated between and the metal piece 5. When the music box is stopped again, the on or off state is fixed.

FIG. 3B shows the operating / non-operating state of the external drive circuit 8 by the trigger signal which repeats the above-mentioned on / off state. The external drive circuit 8 is configured to be activated by, for example, a trigger signal that changes from off to on,
Each time the trigger signal is input, the restart is repeated and the timer circuit 8b also operates. When the music box is stopped and the switch is stopped in the ON state, the trigger signal is not input to the external starting circuit 8 any more, and the operation is stopped after the set timer time T ₁ , and eventually the external driving circuit 8 is stopped. The operation time T is the sum of the operation time T ₂ based on the restart by the input of the trigger signal and the timer setting time T ₁ .

As a result, the external drive circuit 8 operates almost in synchronism with the operation of the music box, and a predetermined device, for example, LE.
D can be made to blink. When the external drive circuit 8 is not operating, it is in a standby state, but in this case, a minimum current consumption of microamperes or less is required, so in practice, except the operating time of the music box. It consumes almost no current.

In the music box, the vibration valve 3a
Since there are as many as 18, for example, the state in which the pin 2d and the vibration valve 3a mesh with each other is always realized, and as shown in FIG.
Only in the specific state A, it is possible to make a state in which the pin 2d and the vibration valve 3a are not engaged. That is, it is possible to create a state in which there is no such engagement only at the beginning (and also the end) of a song. This means that the trigger signal is output to the external drive circuit 8 only at the beginning of the song, as shown in FIG. Therefore, in this case, the beginning of the music box music and the operation of the external drive circuit 8 can be synchronized as shown in FIG.
The set timer time T ₄ is less than the ringing cycle time T ₃ . Further, the timing of issuing this trigger signal is not necessarily limited to the start portion of the music, and it may be arranged at any position in the arrangement.

Further, as a device driven by the external drive circuit 8, in addition to the LED, for example, an electronic sound generating device 9 having a function of electrically generating an artificial sound or a cry of an animal,
Alternatively, various devices such as a doll having a simple movement can be used, and such a device can always be operated at a specific position of the music piece played by the music box. In other words, the electronic sound and operation of the driven device can be synchronized with the sound of the music box.

FIG. 6 shows another embodiment of the present invention. Only the relevant parts of the switch are shown, but the other structure is almost the same as that of FIG. In the figure, the metal contact piece 9 and the metal piece 10 are insulating members 10a.
Screwed onto the diaphragm 3 via the metal contact piece 9
The tip portion 9a of the above-mentioned member is always in sliding contact with the outer peripheral surface of the drum 2b in an electrically conductive state. The metal contact piece 9 and the metal piece 10 form a switch, and the operation thereof is the same as that described in the embodiment of FIG.

FIG. 7 shows still another embodiment of the present invention. Only the relevant parts of the switch are shown, but the other structure is almost the same as that of FIG. In the figure, 11 is a cam member made of synthetic resin, 12 is a metal contact piece, 13 is a metal piece, 14 is an insulating support member, and 15 is a support member. Although the cam member 11 is attached so as to rotate integrally with the drum 2b, the cam member 11 is not limited to this, and may be any member that interlocks with the drum 2b. The cam member 11 also has a plurality of protrusions 11 on its outer peripheral portion.
a.

The metal contact piece 12 and the metal piece 13 constitute a switch and have contact portions 12a and 13a, respectively, and the contact portions 12a and 13a are normally in a contact state (on) and the rear end portion 12b. , 13b are attached to the supporting member 15 in an insulated state by the insulating supporting member 14, and the supporting member 15 is screwed onto the diaphragm 3.

Further, an insulating piece 12 is provided at the tip of the metal contact piece 12.
c is attached, and as shown in FIG. 7a, when the protrusion 11a of the cam member 11 is engaged with the insulating piece 12c, the contact portions 12a and 13a become non-contact (off).
When the protruding portion 11a is separated from the insulating piece 12c as shown in b, the contact portions 12a and 13a return to the contact state (ON).
In this case, the number and size of the protrusions 11a of the cam member 11 can be arbitrarily set, and accordingly, the engagement / disengagement time between the cam member and the metal contact piece 12, that is, the on / off time of the switch can be freely set. Further, the cam member 11 may be made of any insulating material. According to the embodiment of FIG. 7, by appropriately setting the structure of the cam member 11 and the arrangement of the cam member 11 and the switch, the driving time of the external device can be made desired, and its application range is wide.

[0020]

As described above, according to the present invention, a desired device can be operated as a music box by a simple structure in which only two electric contact pieces are added to a normal general music box. It can be driven in synchronization. Therefore, it is possible to easily add a desired function to the function of an ordinary music box to increase its added value, and it is possible to construct the music box at an extremely low cost as compared with a method of making a special music box.

[Brief description of drawings]

FIG. 1 is a schematic view showing an embodiment of the present invention.

FIG. 2 is a schematic diagram showing an operating state of a main part of the above embodiment.

FIG. 3 is an operation explanatory diagram of the embodiment.

FIG. 4 is a schematic view showing a modification of the embodiment.

FIG. 5 is an operation explanatory diagram of the modified example.

FIG. 6 is a schematic view showing a main part of another embodiment of the present invention.

FIG. 7 is a schematic view showing a main part of still another embodiment of the present invention.

[Explanation of symbols]

 1 frame 2 drum part 2b drum 2d pin 3 vibrating plate 3b vibrating valve 4, 9, 12 metal contact piece 5, 10, 13 metal piece 6 case 7 lead wire 8 external drive circuit 11 cam member

Claims (4)

[Claims] 1. A rotary drum in which pins are planted according to a song, a drive source for rotating the rotary drum, and a valve tip vibrates when engaging or disengaging with the pins to provide a sound source corresponding to the song. A music box having a switch, comprising: a vibration valve; and a signal generator that generates a signal in response to rotation of the rotary drum, and a drive circuit that drives a predetermined device by the signal. 2. The music box with a switch according to claim 1, wherein the signal generating means includes a switch means that is turned on / off by contact or non-contact between the pin of the rotary drum and the vibration valve. 3. The switch according to claim 1, wherein the signal generating unit includes a cam member that interlocks with the rotary drum, and a switch unit that is turned on and off by being engaged with and disengaged from the cam member. Music box with. 4. The drive circuit includes a timer circuit, and the switch means is configured to generate a signal at a predetermined rotation position of the rotary drum, and to trigger the timer circuit by the signal. The music box with a switch according to claim 2 or 3.