JPH0426135Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a moving music box toy that is suspended from a high place and rotated.

[Prior art]

Conventionally, a working music box toy that is hung from a high place and rotated, and allows young children to hear the music box's melodies, etc., has a case body 1 as shown in Figure 6.
The rotating shaft 18 of the music box protrudes from the hook 1.
9 is fixed, a decoration support 9 is suspended from the hook, and various decorations 20 are suspended from the decoration support and are rotated to attract children's interest.

However, since it is only a simple rotational movement, the next movement is expected, which lacks fun and surprise, and since the decoration support and the hook are not integrated, it is weak against falls, etc., and the rotation axis of the music box is exposed outside. It has the drawback of being unsafe and undesirable.

[Purpose of invention]

In view of the above-mentioned drawbacks, the present invention makes the movement of the decoration not only a simple rotational movement but also a vertical movement.The rotation and vertical movement provide fun and surprising movements, and the rotation axis of the music box The purpose of the present invention is to propose a moving music box toy that is safe and has sufficient drop strength by preventing the toy from being directly visible from the outside.

[Structure of the idea]

The present invention consists of a cam member coupled to a case body containing a music box, an annular cam surface provided on the cam member, a rotating body rotatably supported by the cam member and rotatably coupled to the music box, and a convex portion of the rotating body. The movable body faces the cam surface so as to be freely movable up and down, and a spring presses the movable body against the cam surface.

〔Example〕

Hereinafter, the present invention will be explained with reference to an illustrated embodiment. The moving music box toy is shown in FIGS. 1 and 2. A rotating body 3 is rotatably attached to a cam member 2 connected to a case body 1 containing a built-in music box (not shown), and is formed at the tip of a shaft protruding from the music box. The square shaft 10 is connected to the square hole 4b of the thick shaft 4a of the rotary plate 4 fixed to the rotary body 3, and the plurality of movable bodies 5 protruding from the rotary body 3 are connected to the annular shape inside the cam member 2. The other end 5a of the movable body 5 is configured to be moved up and down on a cam surface A of
One end 6a of the arm 6 is coupled to the arm 6, and a decoration 11 is fixed to the other end of the arm 6.

The case body 1 and the cam member 2 are connected to each other by the second
As shown in Fig. 3, the connecting hollow cylinder 1a of the case body 1
Two flange portions 1b are formed at the lower end of the cam member 2, and a plurality of ribs 1c for preventing fall are formed in the axial direction on the outer periphery, and two arcuate wide elongated holes 2a are formed in the cam member 2 as shown in FIG. A circular arc-shaped narrow elongated hole 2b, a protrusion 2c, and a reverse rotation prevention portion 2d are formed, and after the flange 1b is inserted into the elongated hole 2a, it is rotated and fitted into the elongated hole 2b, and the lower surface of the protrusion 2c is are engaged as shown in FIG. At this time, two of the ribs 1c cross over the reverse rotation prevention part 2d and are engaged. When the case body 1 is strongly rotated in the opposite direction with respect to the cam member 2, the rib 1c
The engagement of the reverse rotation prevention part 2d is released and the case body 1
The cam member 2 can be separated from the cam member 2.

The cam member 2 is formed into a downward double cup shape as shown in FIGS. 1 and 2, and has an annular cam surface A on the lower surface of the inner skirt portion 2e as shown by the broken line in FIG.
is formed by a stepped portion 2f and an inclined surface 2g, and a pseudo cam surface B having the same shape as the cam surface A is formed on the lower surface of the outer skirt portion 2h.
is formed by the stepped portion 2i and the inclined surface 2j, and the length of the skirt portion of the pseudo cam surface B is formed short so that the movable body 5
It is designed so that it does not come into contact with the

When the rotating body 3 is attached to the cam member 2, the rotating plate 4 is fixed inside the rotating body 3 with screws 12 as shown in FIG.
The thick shaft 4a of the rotary plate 4 is rotatably fitted into the inside k and is prevented from coming off by a stop plate 7 fixed to the upper end of the thick shaft 4a, and the stop plate 7 is prevented from rotating around the thick shaft 4a by a pin 7a. It is fixed with screws 13, and a square hole 7b is formed in the stop plate 7 as shown in FIGS. 1 and 4, and the square shaft 10 is inserted and rotationally connected to the square hole 4b.

The rotating body 3 is formed into an upward cup shape as shown in FIGS. 1 and 5, and has a plurality of notches 3a formed around it into which the movable body 5 fits, and a plurality of ribs 3b protruding from the inner bottom surface. A groove 3c into which the columnar part 5b at one end of the movable body 5 is fitted is formed in each rib 3b, and a plurality of thin holes 3d into which the coil spring 14 is inserted are formed at a position directly below the cam surface A inside the periphery. The movable body 5 and the coil spring 14 are filled with the movable body 5 and the coil spring 14 to prevent it from coming off before the rotary plate 4 is fixed to the rotary body 3 with screws 12.

In the drawing, four movable bodies 5 are provided, and the movable bodies 5 have a cylindrical portion 5b that is pivotally supported by the groove 3c and the lower surface of the rotary plate 4, and is urged into contact with the cam surface A by a coil spring 14. A tongue piece 5d is formed on the movable body 5 so as to cover the pin 5c for preventing the coil spring 14 from coming off and the notch 3a of the rotary body 3. Furthermore, as shown in FIG. 1, the other end 5a of the movable body 5 has a hole into which one end 6a of a plate-like arm 6 formed of soft plastic material is press-fitted and fixed, and a plurality of horizontal holes 5e are provided in the upper and lower walls of the hole. is formed.

A through hole is drilled in the center of the bottom of the rotating body 3 and the string 1
One end of the string 15 is passed through to prevent it from coming off, and a hook 8 is attached to the lower end of the string 15. Another decoration 16 is inserted into the hook 8.

A music box winding shaft is protruded from the side of the case body 1, and a winding knob 17 is screwed thereto.

When operating the above-mentioned operating music box toy, the knob 17 is rotated to wind up the Zenmai, and the music box is played by this Zenmai drive source, and the square shaft 1
0 is rotated. With this rotation, the rotating body 3 is rotated with respect to the cam member 2, and the movable body 5 is pushed down against the coil spring 14 on the inclined surface 2g of the cam surface A, and when it comes off the inclined surface 2g at the step 2f, it moves upward. Each time the arm 6 is moved up and down, the energy from the instantaneous movement of the movable body 5 is stored in the arm 6, and the coil spring 14 that presses the movable body 5 upward and the arm 6 are vibrated, and the arm 6 is attached. The decorated ornament 11 is moved up and down in an unexpected manner.

When the operating music box toy is configured as described above, the rotating shaft of the music box protruding from the case body 1 cannot be seen from the outside, so the appearance is good, and the rotating shaft cannot be touched, so it is safe and prevents the music box from falling. The vibration of the arm 6 is added to the rotating motion, and the decoration 11 moves up and down while swinging in an unexpected motion, creating an interesting, fun and surprising motion that attracts the interest of young children. It can be arousing.

When the movable body 5 alone instantaneously comes off the slope 2g at the stepped portion 2f and hits the cam surface A, a striking sound is generated. elasticity and decoration 11
No impact sound is generated due to the relationship between the weight and the pushing force of the coil spring 14.

Furthermore, when the case body 1, the cam member 2, and the rotary plate 4 are fitted together as described above, even if there are errors in the mounting position of the music box, the deflection of the square shaft 10, or errors in each component within the case body 1, Accuracy is achieved by fitting the hollow tube 1a of the case body 1 to the hollow tube 2k of the cam member 2, and the hollow tube 2k and the thick shaft 4a of the rotary plate 4, and the deflection of the square shaft 10 is achieved by fitting the hollow tube 1a of the case body 1 to the hollow tube 2k of the cam member 2, and the deflection of the square shaft 10 to the square hole 6b. The mating gap is relaxed.

Furthermore, even if an extra external force is applied to the movable body 5, the center of the coil spring 14 is located directly below the cam surface A, and this position becomes the point of action, so deformation is prevented, and the movable body 5 does not have a large rigidity force. Both rotate and move up and down smoothly in contact with the cam surface.

Furthermore, if the pseudo cam surface B is formed in the same shape as the cam surface A, it will appear as if the pseudo cam surface B is visible from the outside.
appears to be moving up and down the movable body 5, and since the cam surface A and the movable body 5 are in contact with each other inside the rotary body 3, powder produced by wear due to contact accumulates inside the rotary body 3 and falls to the outside. It is safe as a toy.

The number of stepped portions 2f and 2g of the cam surfaces A and B is desirably different from the number of movable bodies 5. Further, the shapes of the cam surfaces A and B may be formed by continuous surfaces of curved lines having a waveform.

The arm 6 may be made of a soft plastic material or a leaf spring. Furthermore, the arm 6 does not have to be an elastic arm, as long as it has a weight that can be slightly overcome by the spring force of the coil spring 14.

The coil spring 14 may be formed of a plate spring.

In the above description, the music box is rotationally driven by the full-length drive source, but it may also be driven by an electric motor.

[Effect of idea]

As mentioned above, the rotating shaft of the music box that protrudes from the case body cannot be seen from the outside, so the appearance is favorable, and the rotating shaft cannot be touched, improving safety and preventing it from falling. It is a movement that has excellent practical effects, such as being stronger in strength, and combining not only rotational movement but also unexpected up-and-down movement, making it a fun and surprising movement that can arouse the interest of young children. We can provide music box toys.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a cross-sectional side view of the main parts of a moving music box toy, and FIG. 2 is a side view of the case body of the moving music box toy with the cam member and rotating body disassembled. FIG. 3 is a cross-sectional plan view of the connecting hollow cylinder of the case body, FIG. 4 is a plan view of the cam member, FIG. 5 is a plan view of the rotating body, and FIG. 6 is a side view of a conventional moving music box toy. DESCRIPTION OF SYMBOLS 1... Case body, 2... Cam member, 3... Rotating body, 5... Movable body, 14... Spring, A... Annular cam surface.

Claims (1)

[Scope of utility model registration request] a cam member coupled to a case body containing a music box; an annular cam surface provided on the cam member; a rotating body rotatably supported by the cam member and rotationally coupled to a drive source for the music box; A moving music box toy, comprising: a movable body rotatably supported by a body, protruding from the rotating body and facing the cam surface in a vertically movable manner; and a spring pressing the movable body against the cam surface.