JPS6229026Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention utilizes the rotational force of a music box to
This invention relates to a drive structure that moves two symmetrical movable bodies simultaneously and symmetrically.

Traditionally, there have been ornaments that move birds, butterflies, etc. in conjunction with the sound of a music box installed in the case of the ornament, but most of these have fixed bodies and wings.
The entire bird or butterfly rotates, and there are no wings or legs that move symmetrically. Therefore, it had the disadvantage that it lacked originality and luxury as an ornament.

On the other hand, for example, Utility Model Publication No. 39-9188 and JP-A-55-
Publication No. 14021 shows the structure of a flapping model animal. However, since these devices utilize elastic deformation of the material, they are easily damaged and do not have a structure that utilizes the rotational force of the music box.

The purpose of the present invention is to solve the above-mentioned drawbacks and to provide an ornament with a music box that has originality and a sense of luxury. Based on the above object, the present invention combines a first lever assembly and a second lever assembly in a pantograph shape, and moves the force point of this lever assembly up and down by the rotational force of a music box to extend and retract the pantograph-shaped lever assembly. The movable bodies, such as the wings and legs of animals and insects, which are attached to the action part of this lever assembly, are moved symmetrically and simultaneously.

Hereinafter, the present invention will be specifically explained based on embodiments shown in the drawings.

The music box ornament 1 of the present invention is composed of a case 2 and a cover 3, as shown in FIGS. 1 to 4. Case 2 is a top opening type.
A music box 4 is stored inside it. As shown in FIG. 2, this music box 4 is of a general type and houses a mainspring 6 inside a mainspring case 5. The return rotational force of the mainspring 6 drives the drum 9 by a pair of bevel gears 7 and 8. The drum 9 is rotatably supported by the frame 10, and pins 11 on its outer periphery are brought into contact with corresponding diaphragms 12 to impart vibration to the diaphragms 12. Note that this diaphragm 12 is attached to the set screw 1.
3 to the upper surface of the frame 10.
The rotation of the drum 9 is controlled by a gear 14, a composite gear 1
5 and 16, the information is transmitted to the governor 17. This governor 17 stabilizes the rotational speed of the drum 9 by pneumatic braking force.

Further, a bracket 19 and a support plate 20 are attached to the frame 10. Bracket 19 is
It has a U-shape when viewed from above and rotatably supports the drive shaft 21. One end of the drive shaft 21 forms a gear 22, which meshes with the gear 14 of the drum 9. The other end of the drive shaft 21 protrudes to the side of the music box 4 and supports a crank 23. Further, the support plate 20 has a set screw 1
3 to the frame 10 together with a support rod 24, at a lateral position of the frame 10,
An idle lever 26 is rotatably supported by a fulcrum pin 25. One end of the idle lever 26 forms a U-shaped sliding groove 27, and this sliding groove 27 fits into a connecting pin 28 fixed to the tip of the crank 23. And these crank 23 and idle lever 26
constitutes a swinging slider crank mechanism,
The rotation of the drive shaft 21 is transmitted as a quick return rocking motion to a buffer member 46, which will be described later.

On the other hand, the support rod 24 extends upward and protrudes from the opening 29 of the cover 3, and is bent in a U-shape at its upper end to form support shafts 30 and 31 that serve as a pair of fulcrums. Levers 32 and 33 are swingably supported on the support shafts 30 and 31, respectively. Each of the levers 32 and 33 has a first action part 34 and a second action part 35 at its upper end, and a symmetrical plate-shaped movable body 36 and 37 in the shape of, for example, a butterfly wing on its upper surface. is supported.
Then, pin 3 is attached to the lower end of each lever 32, 33.
Levers 40 and 41 are rotatably mounted by levers 8 and 39. Left upper and lower levers 32, 40
forms a first lever assembly 42, and the upper and lower levers 33 and 41 on the right side form a second lever assembly 43, and both the first lever assembly 42 and the second lever assembly 43 form a pantograph shape as a whole. It's summery. The lower levers 40, 41 are connected to a buffer member 46 at force point portions 44, 45 at their lower ends. As shown in FIG. 5, this buffer member 46 has a spiral spring portion 47 formed in its middle portion, and is connected to the end of the idle lever 26 at its lower end.

Now, when the user rotates the handle shaft 18 to wind up the mainspring 6 and then releases the restraint of the handle shaft 18, the mainspring 6 rotates the drum 9 by its return rotational force. The pin 11 of the drum 9 is
Since it hits the corresponding diaphragm 12 and gives it vibration, the diaphragm 12 plays a desired melody. On the other hand, the rotation of the drum 9 is transmitted as rotational motion to the drive shaft 21 via the gears 14 and 22. Therefore, the drive shaft 21 rotates the crank 23 by its rotation, and transmits the rotation to the idle lever 26 as a reciprocating rotational (swinging) motion. In this way, the swinging motion of the idle lever 26 is transmitted as a vertical motion to the force points 44, 45 of the levers 40, 41, so that the pair of levers 32, 33 connected thereto
perform rocking movements simultaneously and symmetrically in different directions around the support shafts 30 and 31. Therefore, the pair of movable bodies 36 and 37 perform the flapping motion of a butterfly in synchronization with the music of the music box 4.

By the way, if a child or the like applies a large external force to the movable bodies 36 and 37 during operation or stop, that external force will be applied to the first lever assembly 42 and the second lever assembly 43.
and is about to be transmitted to the idle lever 26 via the buffer member 46. However, in response to this external force, the spring portion 47 of the buffer member 46 elastically deforms and absorbs the external force, so that the external force applied to the movable bodies 36, 37 is not directly transmitted to the idle lever 26. Therefore, the idle lever 26, crank 23, drive shaft 21, gear 14, bevel gears 7, 8, and mainspring 6 are reliably protected from deformation or damage caused by external forces. Similarly, when the music box 4 is in operation, any movable body 3
6, 37 hit an obstacle, the buffer member 4
Since the spring portion 47 of No. 6 absorbs the movement of the idle lever 26, the music box 4 is in a state where it can continue playing.

Next, in the embodiments shown in FIGS. 6 and 7, one support shaft 30 also serves as another support shaft 31, and a lever 3 is attached to this.
An example in which 2 and 33 are commonly supported is shown. In this way, the fulcrum is composed of one or two shafts, and any one of these may be adopted depending on the size of the body of the animal or insect. Also,
The buffer member 46 in this embodiment is connected to the upper rod 48.
It consists of a cylindrical body 50 attached to the cylindrical body 50, a coiled spring 51 housed inside the cylindrical body 50, and a contact plate 52 that is in contact with the lower end of the spring 51 and attached to the lower rod 49. . When the lower rod 49 rises, its movement is controlled by the spring 5.
1 to the upper rod 48. When the lower rod 49 descends, the contact plate 5
2 tends to move away from the bottom surface of the spring 51,
The lower rod 49 transfers the downward movement to the upper rod 48.
Not communicated to However, since the movable bodies 36 and 37 are always trying to rotate downward due to their gravity, the force points 44 and 45 of the levers 40 and 41 are always urged downward due to gravity, and when the lower rod 49 is lowered, Follow that movement. If either of the movable bodies 36, 37 is strongly pushed downward during operation, the spring 51 absorbs the external force.
That external force is not transmitted to the idle lever 26.
Conversely, when either of the movable bodies 36, 37 is pulled upward, the movement is caused by the movement of the levers 32, 3.
3, the upper rod 48 is pulled up, but at this time, the spring 51 separates from the contact plate 52, so the upper rod 48 and the lower rod 49 are separated, and no external force is transmitted between them.

In addition, in any of the above embodiments, the emphasis portion 44,
45 is common, but they may be separated, and the movable bodies 36 and 37 are connected to the first action section 34.
The first lever assembly 42 and the second lever assembly 43 may be formed integrally with the second action section 35, and the first lever assembly 42 and the second lever assembly 43 may be of a leaf spring or hinge type.

In this invention, the rotational force of the music box is also used as the drive source for the movable body, so no special drive source is required, and the pair of movable bodies synchronizes with the music of the music box, just like the wings and legs of insects. As the music box moves, the music of the music box visually interacts with the movement of the movable body, enhancing the originality and luxury of the ornament.

In particular, a pair of movable bodies are fixed to a pantograph-like lever assembly, and the reciprocating rocking motion is performed without relying on elastic deformation of the material, so there is no fatigue of the material and the reproducibility of the movement is high. Become certain.

In addition, since a buffer member is interposed between this pantograph-shaped lever assembly and the idle lever, shocks from the movable body side are not transmitted to the music box side, and even when the movable body is in contact with an obstacle, the music box Continuous rotation is possible.

Furthermore, since the crank and the idle lever constitute a swinging slider crank mechanism, and the reciprocating strokes of the reciprocating swinging motion have different times, the flapping motion of the movable body is similar to the flapping motion of an animal.

[Brief explanation of the drawing]

Fig. 1 is a plan view of an ornament with a music box, Fig. 2 is a plan view of the music box, Fig. 3 is a plan view of the supporting part of the movable body, and Fig. 4 is a front view showing the interlocking relationship between the music box and the movable body. Figure 5 is a side view of the buffer member;
FIG. 6 is a side view of a lever assembly portion in another embodiment, and FIG. 7 is a sectional view of another embodiment of the buffer member. 1... Ornament with music box, 2... Case, 4...
... Music box, 21 ... Drive shaft, 23 ... Crank, 26 ... Idle lever, 30, 31 ... Support shaft, 34 ... First action part, 35 ... Second action part,
36, 37...Movable body, 42...First lever assembly, 43...Second lever assembly, 44, 45...Power point portion, 46...Buffer member.

Claims (1)

[Scope of utility model claims] A case 2, a music box 4 attached to the case 2, a drive shaft 21 that is rotationally driven by the rotation of the drum 9 of the music box 4, and converts the rotation of the drive shaft 21 into a quick return rocking motion. A crank 23 and an idle lever 26, a symmetrical pantograph-shaped lever assembly 42, 43 that expands and contracts by the swinging motion of the idle lever 26, and a lever assembly 42, 43 and the idle lever 2.
6, and two acting parts 34, 35 symmetrically provided on the lever assemblies 42, 43 via the supporting shafts 30, 31 in fixed positions.
And, movable bodies 36, 3 corresponding to the wings or legs of animals, insects, etc. are provided on the action parts 34, 35.
7, an ornament with a music box characterized in that the movable bodies 36 and 37 are moved symmetrically in synchronization with the music by the music box 4.