JPH08714Y2 - Music box device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a music box device capable of playing a plurality of musical pieces.

[Prior art]

Conventionally, as a music box that plays different songs or multiple songs, a music box that plays in a medium such as a disk or a card has been proposed in No. 1-38637. It is proposed in Kaihei 2-35497.

[Problems to be solved by the device]

In the former case, when changing the music, it is necessary to replace the medium for determining the music such as a disc and a card, and it is necessary to manufacture a medium corresponding to the music. In the latter case, there is a drawback that the tone color of the conventional music box cannot be produced and the size of the device becomes large.

In view of the above-mentioned drawbacks, an object of the present invention is to provide a disk with a small device,
It is an object of the present invention to propose a music box device which can play an arbitrary music piece without using a medium for determining a music piece such as a card and can produce a tone color of a conventional music box.

[Means for solving problems]

The present invention relates to a music box device having a plurality of vibrating valves and flipping the vibrating valves with a claw of a ratchet wheel. A rotary shaft having a rotary drive source and a cylindrical bearing portion concentric with the rotary drive source. And a ratchet wheel having a claw portion rotatably fitted in the bearing portion and flipping the vibration valve, and lightly press-fitted into the outer circumference of the bearing portion, one end of which is coupled to the ratchet wheel and the other end of which is radiated by the rotary shaft. A coil spring that projects in the direction and transmits the rotational force of the rotating shaft to the ratchet wheel when it is wound around the rotating shaft, and a plunger that is controlled by a signal from a controller unit and that moves forward and backward. And a solenoid arranged such that the plunger tip portion extends into the rotation range of the other end of the spring, and the rotation of the spring is caused by the engagement between the plunger tip portion and the other end of the spring. To the axis It prevents winding tightening, interrupts the rotation transmission of the rotating shaft to the ratchet wheel by the spring, and by releasing the engagement, the spring is wound around the rotating shaft, The rotation is transmitted to the ratchet wheel.

〔Example〕

Hereinafter, the present invention will be described with reference to an illustrated embodiment. FIG. 1 is a plan view of a music box device for flipping a vibration valve with a ratchet wheel, FIG. 2 is a side view of an essential part of FIG. 1, FIG. 3 is an enlarged sectional side view of an essential part of a music box device, and FIG. 4 is an essential part. Enlarged side view, FIG. 5 is the third
It is a principal part expanded side view of a figure. In FIG. 1, the music box device has a diaphragm 2 fixed on a frame 1 with screws 10
The ground plate 3 bent on the frame 1 in front of the
It is fixed at. On the frame 1 on the side of the diaphragm 2 and the base plate 3, another base plate 5 incorporating a rotary drive source 13 composed of a motor and a gear reduction mechanism 4 is fixed by screws 14 and 15.

As many solenoids 16 as the number of comb-teeth shaped vibration valves 2a formed on the vibration plate 2 are fixed to the ground plate 3 with screws 17. One side upright bent portion 3a of the main plate 3 and one side upright bent portion 5a of the other main plate 5
A rotary shaft 18 is rotatably supported by the gear, and a gear 19 is fixed to the right end of the rotary shaft 18 in FIG.

The gear reduction mechanism 4 includes a worm 20 fixed to a rotation shaft of a rotary drive source 13 including a motor, a worm gear 6 supported by one side upright bent portion 5a and the other side upright bent portion 5b of another main plate 5.
And a pinion 6a formed integrally with the worm gear 6 and meshed with the gear 19.

As shown in FIGS. 1 to 5, a vibration valve is provided on the outer circumference of the rotary shaft 18.
The number of concentric cylindrical bearings 7 corresponding to the number 2a is fixed.
A flange portion 7a, an outer peripheral portion 7b into which the coil spring 8 is lightly press-fitted, a small diameter portion 7c into which the ratchet wheel 9 is rotatably fitted, and a small diameter into which the washer 20 is fitted and fixed. The part 7d is formed and the washer 20 is caulked and fixed.
At 20, the claw wheel 9 and the coil spring 8 are prevented from moving in the thrust direction and prevented from coming off.

The claw wheel 9 has a claw portion 9a protruding in the radial direction of the rotary shaft 18,
A recess 9b is formed. The claw 9a faces the vibrating valve 2a, and the recess 9b is engaged with one end 8a of the coil spring 8.

The other end 8b of the coil spring 8 faces the tip of the plunger 21 of the solenoid 16. The plunger 21 is held by a solenoid 16 so as to be able to move back and forth, and a flange portion 22 is integrally or separately formed and fixed to the plunger 21, and is urged forward by a coil spring 23 as shown by an arrow B in FIG. Has been done. The tip of the plunger 21 is the third
As shown in the figure, it is fitted in the square hole 3b of the main plate 3 so as to be able to move back and forth.

The solenoid 16 is connected to the drive circuit 24 as shown in FIG. 6, and the drive circuit 24 is connected to the controller section 25.

In FIG. 1, when the horizontal width of the solenoid 16 is wider than the distance between the vibration valves 2a, the solenoids 16 cannot be arranged in a line. In that case, the plunger 21 is bent to move the solenoid 16 to the fourth position.
In the side view of the drawing, two rows may be arranged vertically, and the solenoid 16 may be arranged in two rows in the front and rear in FIG.

The operation of the music box device is a rotary drive source consisting of a motor.
When 13 is rotated, the rotary shaft 18 and the cylindrical bearing portion 7 are rotated in the clockwise direction indicated by arrow C in FIG. 4 via the gear reduction mechanism 4. Although the cylindrical bearing portion 7 is rotated, the other end 8b of the coil spring 8 is engaged with the tip end portion of the plunger 21 of the solenoid 16 as shown by the chain double-dashed line in FIGS. 8, the force works in the unwinding direction,
The rotation transmission from the cylindrical bearing portion 7 to the ratchet wheel 9 is cut off.

Next, when a signal suitable for the tune is sent from the controller unit 25 to the drive circuit 24, the drive circuit 24 energizes the coil of the solenoid 16 corresponding to the vibration valve 2a flipped by the claw portion 9a of the ratchet wheel 9 to cause the plunger. 21 is sucked in the direction of arrow A in FIG. 4, and the tip of the plunger 21 is the other end of the coil spring 8.
Removed from 8b. When the tip end of the plunger 21 is disengaged from the rotation range of the other end 8b of the coil spring 8, the coil spring 8 is wound around the outer circumference of the cylindrical bearing portion 7, and then the pawl portion 9a abuts on the vibration valve 2a. The coil spring 8 is further tightened by the rotation of the rotating shaft 18, and the ratchet wheel 9 rotates following the rotation of the cylindrical bearing portion 7, and the vibrating valve 2a is flipped by the nail portion 9a to make a sound. It

Energization of the solenoid 16 is sufficient for the pawl portion 9a to flip the vibrating valve 2a, and for a time shorter than one rotation of the ratchet wheel 9, one valve sound can be flipped by one energization.

The stop position before the claw portion 9a of the ratchet wheel 9 hits the vibration valve 2a is such that the relative positions of the one end 8a and the other end 8b of the coil spring 8 remain so that the position immediately before the vibration valve 2a is hit, as shown in FIG. is set up.

When the music box device is configured as described above, it is possible to play a plurality of music pieces by sending a signal suitable for the music piece from the controller unit 25, and it is also possible to play new creative music pieces. Further, it is not necessary to make and use a medium for determining the music such as a disk or a card, and since the vibrating valve 2a is flipped by the claw 9a, the tone of a conventional music box can be produced.

Further, if the vibration valve 2a is directly flipped by energizing the solenoid 16, a large torque is required and a large amount of current is required, and the solenoid 16 becomes large. However, in the present invention, the coil spring 8 is provided at the tip of the plunger 21. Since the other end 8b of the above can be engaged and disengaged, a large torque is unnecessary and the device can be downsized.

[Effect of device]

Since the present invention is configured as described above, it is possible to play a plurality of pieces of music without making or using it as a medium for determining a piece of music, and the tone color of a conventional music box can be produced to make the device compact. It is possible to provide a music box device having an excellent effect.

[Brief description of drawings]

An embodiment of the present invention is shown in the drawings, FIG. 1 is a plan view of a music box device, FIG. 2 is a side view of the essential parts of FIG. 1, and FIG. 3 is an enlarged cross-sectional side view of the essential parts of the music box device. FIG. 4 is an enlarged side view of an essential part, FIG. 5 is an enlarged side view of an essential part of FIG. 3, and FIG. 6 is a control configuration diagram of the music box device. 2a ... Vibration valve, 7 ... Cylindrical bearing part, 8 ... Coil spring, 8a ... One end, 8b ... Other end, 9 ... Claw wheel, 9a ... Claw part, 13 ... Rotation drive source, 16 ... Solenoid, 18 ... Rotation shaft , 21 ... Plunger, 25 ... Controller section.

Claims (1)

[Scope of utility model registration request] 1. A music box device having a plurality of vibrating valves, wherein the vibrating valves are flipped by a claw of a ratchet wheel, and a rotary drive source and a rotary bearing which is rotated by the rotary drive source and has a concentric cylindrical bearing portion on an outer periphery thereof. A shaft, a ratchet wheel that is rotatably fitted to the bearing section and has a claw section that repels the vibration valve, and is lightly press-fitted to the outer circumference of the bearing section, one end of which is coupled to the ratchet wheel and the other end of the rotary shaft. It has a coil spring that projects in the radial direction and transmits the rotational force of the rotary shaft to the ratchet wheel when it is wound around the rotary shaft, and a plunger that moves forward and backward under the control of a signal from the controller unit. And a solenoid arranged such that the plunger tip portion extends into the rotation range of the other end of the spring, and the engagement of the plunger tip portion with the other end of the spring causes Axis of rotation The rotation of the rotary shaft to the ratchet wheel by the spring is blocked, and the engagement is released, whereby the spring is wound around the rotary shaft, The music box device is characterized in that the rotation of the gear is transmitted to the ratchet wheel.