JPS6143120Y2 - - Google Patents

Description

[Detailed Description of the Invention] * Industrial Field of Application The present invention relates to toy fireworks, and in particular, a film of water-based paint is formed on the surface of the coating part provided on the shaft.

* Conventional technology The surface of the coating part provided on the shaft of toy fireworks is a gunpowder-colored rough surface with many small holes caused by air bubbles mixed in during stirring of the compounded drug and unevenness due to the size of the particles of the compounded drug. Therefore, not only is the appearance inconvenient, but there is also a risk of ignition due to surface friction during transportation. Furthermore, since the gunpowder on the surface tends to fall off, especially in the case of so-called set products in which various types of toy fireworks are sold set in the same container, the various gunpowder that falls off from each firework during transportation etc. may fall off at the bottom of the container, etc. There is also a risk that they may mix together to form a more sensitive gunpowder. Additionally, since the gunpowder is exposed, it may absorb moisture and become difficult to burn.

Therefore, the present applicant has already proposed a toy firework in which a colored film formed by mixing metal powder with transparent lacquer and thinner is formed on the surface of the coating part (Utility Model Publication No. 51 -
No. 46465).

* Problems to be solved by the invention However, since the colored film in such conventional toy fireworks is made of a mixture of transparent lacquer, thinner, and metal powder, the following problems arose.

(A) Transparent lacquer and thinner are difficult to handle during the manufacturing process of toy fireworks, pose a risk of ignition, and may pose a risk to the health of workers.

(B) Colored films using transparent lacquer and thinner dry quickly, so only the colored film on the surface hardens before the water in the paint area evaporates.
There is a risk that moisture will be trapped within the coating area and cause the colored film to become cloudy.

(C) Transparent lacquer and thinner do not mix with gunpowder.
It has a tendency to attack gunpowder, so if it is applied to the paint part, the surface of the paint part will become cloudy and wrinkled.
Or there is a risk of it falling off.

(D) Since metal powder is used, the entire colored film may darken due to oxidation of the metal powder.

(E) Colored films using transparent lacquer or thinner not only produce an unpleasant odor, but also pose a risk of ignition due to friction during transportation of toy fireworks.

(F) Transparent lacquer and thinner produce an orange or yellow flame when burned, so the flame color of gunpowder (red, green, etc.)
The clarity of the image decreases.

(G) Colored films containing clear lacquer and thinner may ignite violently and cause burns.

*Means for solving the problems In order to solve the above problems, the present invention provides a toy firework in which a film of water-based paint is formed on the surface of the paint part provided on the shaft part.

*Example In the figure, reference numeral 1 indicates a shaft portion of a toy firework, and reference numeral 2 indicates a coating portion provided on the shaft portion 1. The shaft portion 1 may be made of any material such as wire, wood, bamboo, paper, synthetic resin, etc., and its shape does not matter. code 3
is a small hole on the surface of the coating part 2.

Therefore, in the present invention, the film 4 is formed by applying a water-based paint to the surface of the coating portion 2 by dipping, coating, spraying, or other methods. In addition, when the shaft part 1 is made of metal such as wire, the part of the shaft part 1 close to the coating part 2 tends to rust, so as shown in FIGS. 1 and 2, the shaft part It is desirable to form a film 4' of water-based paint on this part of 1 to prevent rust.

In addition, the water-based paint has a coating part 2 as shown in Figure 3.
However, in order to make the application easier and to make the color of the water-based paint more vivid, as shown in Figure 4, for example, wood powder or vinyl chloride powder may be used. A water-based paint may be applied to the coating portion 2 through a base layer 5 formed by mixing combustible fine powder such as starch, daphnia, synthetic resin, or the like into a paste.

FIG. 1 shows an example in which the present invention is applied to a toy firework in which a coating part 2 is provided at one end of a shaft part 1.

In Figure 2, lubricating parts 2, 2 are provided at both ends of the shaft part 1,
An example in which the present invention is applied to a toy firework formed by appropriately bending the shaft portion 1 will be shown.

FIG. 5 shows an example in which the present invention is applied to a shaft portion 1 made of paper or synthetic resin with lubricant portions 2, 2 provided at both ends.

FIG. 6 shows a toy firework made by bending the shaft portion 1 of the firework shown in FIG. 5 into a substantially V-shape.

FIG. 7 shows an example in which the present invention is applied to a shaft portion 1 formed of paper, synthetic resin, or the like in a substantially cross shape, with lubricating portions 2, 2, 2, 2 provided at each end of the shaft portion 1, respectively.

FIG. 8 shows a toy firework made by bending the shaft portion 1 of the structure shown in FIG. This toy firework is held by hand by the center part (upper part in FIG. 8) of the shaft part 1, or by hoisting it up with a string or the like, and igniting 6 parts of the igniter. ignition powder 6
When it burns out, the shaft 1 opens in four directions.

As described above, the water-based paint deposited on the surface of the coating portion 2 dries and hardens after a certain period of time to form a strong and smooth film 4.

*Effects of the invention The toy fireworks of this invention form a film of water-based paint on the surface of the painted part, rather than a colored film made by mixing metal powder of transparent lacquer and thinner, thereby eliminating the problems mentioned above in conventional toy fireworks. are solved all at once. That is, (a) since it is a water-based paint, it is easy to handle during the manufacturing stage of toy fireworks, there is no risk of ignition or harm to the health of workers, and the cost is lower than that of the conventional colored film. You can also do it.

(b) When a water-based paint is applied to the painted part, the water in the water-based paint gradually evaporates together with the water in the painted part, so no moisture is trapped inside the painted part.

(c) Since water-based paint is compatible with gunpowder, there is no risk that the surface of the painted part will become cloudy, wrinkled, or fall off even if it is applied to the painted part.

(d) Since no metal powder is used, the coating will not darken due to oxidation.

(e) Since it is a water-based paint film, there is no unpleasant odor, and there is little risk of ignition due to friction during transportation of fireworks.

(f) A film of water-based paint will not reduce the sharpness of the gunpowder flame color during combustion.

(g) Water-soluble paint films do not ignite violently when ignited.

(h) Furthermore, before the toy firework is used, the painted part with the water-based paint film has a much more beautiful appearance than the painted part with the conventional colored film.

The present invention exhibits excellent effects as described above.

[Brief explanation of the drawing]

Figures 1 and 2 are perspective views showing each embodiment of the present invention, Figure 3 is an enlarged sectional view of the coating part when no base layer is used, and Figure 4 is a view when a base layer is used. The enlarged sectional view of the coating part and FIGS. 5 to 8 are perspective views showing other embodiments of the present invention, respectively. 1: Shaft part, 2: Paint part, 3: Small hole, 4, 4':
Water-based paint film, 5: base layer, 6: ignition powder.

Claims (1)

[Scope of utility model registration request] A toy firework characterized by forming a film of water-based paint on the surface of a coating part provided on the shaft.