JPH052234Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a music box with a vertical movement member for vertically moving a doll or the like.

[Prior art]

Conventionally, when moving a doll or the like up and down using the full-movement drive source of a music box, a pinion 31 coaxial with a cam 30 is attached to the gear 29 on the side of the drum 10, as shown in Fig. 6A.
The vertically movable member 32 is brought into contact with the cam 30, and the rotational drive shaft 11 of the drum 10 is engaged with the cam 30 as shown in FIG.
The cam 33 with a pin is fixed to the cam 33 and the pin is inserted into the horizontal hole of the vertically movable member 32, or the vertically movable member 32 is bent by bending the rotary drive shaft 11 or the shaft of the pinion 31 into a crank shape as shown in Figure C. A crank-shaped cam plate 34 can be attached to the rotating drive shaft as shown in Figure D.
was fixed and the bent portion of the vertically movable member 32 was brought into contact with the vertically movable member 32.

In these structures, when the vertically movable member 32 is pushed down, the drum 10 is forcibly rotated by the pushing force, and when the drum 10 is rotated in the opposite direction to the direction in which the vibration valve is flipped, the vibration valve is broken. There are certain drawbacks. Furthermore, heavy objects such as dolls are directly moved up and down by the music box's drive source through the vertical movement member 32, but since the output of the music box's drive source is regulated depending on the strength of the whole movement, it is difficult to apply the weight to the attached doll. There is a drawback that it is not possible to attach large, heavy dolls, etc. due to restrictions.

[Purpose of invention]

In view of the above-mentioned drawbacks, the present invention is an inexpensive mechanism that incorporates a safety mechanism that prevents the music box from being damaged by an external load that pushes down the vertical movement member, and a doll that is difficult to move up and down with only the output of the music box's drive source. The purpose of the present invention is to propose a music box with a vertically moving member that can move heavy objects such as vertically.

[Structure of the idea]

In the present invention, a music box that rotates a drum by a rotary drive source and plays a vibrating valve is provided with a cam that is rotated by the drive source, and the cam is slidably contacted and separated from below by a pressing force means. comprising a lever and a vertically movable member supported by the lever,
The pressing force means also serves as a means for reducing the load on the vertically movable member.

〔Example〕

The present invention will be explained below with reference to an embodiment shown in the drawings. As shown in FIGS. 1 to 3, the music box with a vertically movable member has a frame 3 of a music box 2 fixed on a base portion 1a of a plate-shaped lower case 1. A square shaft 35 is screwed onto the rotation drive shaft 11 of the drum 10 provided on the frame 3, and a square hole of the cam 4 is fitted into this square shaft 35. A portion of the upper cover 7, which will be described later, approaches and opposes this cam to prevent the cam from coming off. One side of a weak coil spring 12 that slides the lever 5 onto the cam 4 is fitted into the shaft portion 4a of the cam 4, and a washer 13 is fitted into the shaft portion 4a of the cam 4.
It is fixed with screw 14. The other side of the coil spring 12 is fitted into the pin 5a of the lever 5.

One side of the lever 5 is a pin 1 inserted into a lower opening hole 1c of a U-shaped jetty 1b formed in the lower case 1.
5, it is rotatably supported on the shaft. A spring 16 is fitted into the pin 15, and one side is engaged with the bottom of the concave hole 1d of the lower case 1, and the other side is engaged with the pin 5a, so that the lever 5 is urged upward. On the upper surface 5b of the lever 5, the outer periphery of the cam 4 is connected to the coil spring 12 and the spring 1.
They are in sliding contact with a spring force of 6. A curved portion 5c and a through hole 5d are formed on the other side of the lever 5. The lower end cut portion 6a of the vertically movable member 6 is inserted into the through hole 5d.

The cut portion 6a is D-cut on both sides, and the stepped portion 6b
is placed on the upper surface of the curved portion 5c. A retaining pin 17 is driven into a portion of the cut portion 6a that protrudes downward from the curved portion 5c.

The vertically movable member 6 is inserted into the cylindrical portion 7a of the upper cover 7, a coil spring 18 is fitted to the outer periphery of the upper end, and a washer 19 is placed on it, so that the shaft portion 8 of the doll or the like is screwed into the female thread at the upper end of the vertically movable member 6. has been done. Cylinder part 7
A cylindrical cap 20 is fitted on the outer periphery of a, and is prevented from coming off by a retaining ring 21 fitted to the shaft portion 8.

The fixing portion 7b of the upper cover 7 is fixed to the lower case 1 with tapping screws 22 as shown in FIG.

The above-mentioned music box 2 has a barrel 23 fixed on a frame 3, in which a barrel 23 is wound up by a barrel 24.
The speed of the drum 10 is controlled by the speed governor 25 and the drum 10 is rotated by this full-movement drive source. A diaphragm 26 is further fixed on the frame 3 and faces the pins of the drum 10.

The above-mentioned music box with a vertically movable member is attached to the wooden base 9 of the toy as shown in FIGS. 1 and 5, and the cap 20 is projected above the wooden base 9,
A doll 27 made of pottery or the like is fixed to.

The spring 16 and the coil spring 18 are provided in a well-balanced manner to support the weight of the doll 27 moving up and down, and the output of the music box 2 that rotates the cam 4 is determined by the strength of the spring 16 and the coil spring 18.
Means is provided to reduce the load on the vertically movable member 6 using the spring 16 and the coil spring 18 such that the weight of the vertically moving member 6 is equal to the value obtained by subtracting the weight of Only one of the spring 16 and the coil spring 18 may be used.

The movement of the above music box with vertically moving members is all movement axis 2.
When the Zenmai is wound up by the winding key 28 screwed into the music box 4, the drum 10 is rotated by the Zenmai drive source, the diaphragm 26 is played by the pin of the drum 10, and the music box 2
is played, and the rotation of the drum 10 causes the rotation drive shaft 11
is rotated, and the cam 4 is rotated. This rotation moves the lever 5 up and down. This vertical movement causes the vertical movement member 6, shaft portion 8, and doll 27 to move up and down.

At this time, since a means is provided to reduce the load on the vertically moving member 6 so that the weight of the doll 27 etc. that moves vertically is supported by the spring 16 and the coil spring 18, the music box has a small output that is regulated according to the strength of the whole dance. 2
Therefore, it is possible to move a heavy doll that cannot be moved up and down using only the output of the music box 2.

Furthermore, even if the doll 27 is pushed down from above, the lever 5 is moved by the vertically moving member 6 from the spring 16 and the coil spring 1.
8. Pushed down against the coil spring 12, the coil spring 12 stretches and moves from the cam 4 to the lever 5.
This is a safety mechanism that prevents the music box from being damaged because the cam 4 is not forcibly rotated when the cam 4 is separated.

In the above description, the springs are used at three locations, but the springs may be used at only one location as long as the weight of the doll or the like that moves up and down is balanced and the lever 5 is brought into sliding contact with the cam 4. Further, instead of using a spring, the lever 5 may be extended to the opposite side from the pivot point formed by the pin 15 and weighted, etc., to maintain balance and the lever 5 may be brought into sliding contact with the cam 4.

Furthermore, in addition to being fixed to the rotary drive shaft 11, the cam 4 is made to slide into contact with the conventional cam 30 shown in FIG. 6, the crank-shaped bent shaft, or the cam plate 34 by applying the lever 5 of the present invention from below. Good too.

[Effect of idea]

Since the present invention is constructed as described above, it is possible to move a heavy doll up and down, which cannot be moved up and down with only the output of the small drive source of the music box, and the lever is released from the cam even if the doll is pushed down from above. It is possible to provide a music box with a vertically movable member that has excellent practical effects such as not damaging the music box by just moving the music box.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a cross-sectional side view of the main part of a music box with a vertically moving member, and FIG. 2 is a plan view of the interior of the case of the music box with a vertically moving member.
Fig. 3 is an exploded perspective view, Fig. 4 is a cross-sectional side view of the main parts fixing the upper cover and lower case, Fig. 5 is an external front view of the music box with vertically movable members assembled into a wooden stand.
FIG. 6 is a perspective view of essential parts of a conventional vertically movable member. 2...Music box, 4...Cam, 5...Lever, 6...Vertical movement member, 10...Drum, 26...
...Vibration valve.

Claims (1)

[Scope of utility model registration request] A music box that rotates a drum by a rotational drive source and plays a sound by playing a vibration valve is provided with a cam that is rotated by the drive source, and a lever that slides into and out of contact with the cam from below by a pressing force means; A music box with a vertically movable member, comprising a vertically movable member supported by a lever, and wherein the pressing biasing means also serves as a means for reducing the load on the vertically movable member.