JPH0356786Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a plate-shaped toy firework with a cover for protecting the firework.

[Conventional technology]

Various kinds of toy fireworks have been known in the past, and they are used as elegant fireworks that emit sparks in a waterfall shape when gunpowder applied to the bottom of the plate is ignited. For example, in Japanese Utility Model Publication No. 53-17356, there is a device in which fireworks gunpowder is applied between thin sheets of paper and black gunpowder is provided on the bottom side.

[The problem that the idea attempts to solve]

Although conventional plate-shaped fireworks are made of two sheets of thin paper, they have the disadvantage that they are often damaged during transportation because they are exposed and the outside is not covered. First of all, because conventional plate-shaped toy fireworks are made by putting two sheets of thin paper together, if they are bent even a little or if an impact is applied from the outside, the internal gunpowder layer will be damaged, resulting in a cascading shape. There was a defect in that the fuel could no longer achieve its intended purpose of burning evenly and emitting sparks like a waterfall. Another disadvantage is that the fireworks tend to get damp because there is no cover.

In this invention, plate covers 7 and 7' are provided on the outside for the purpose of covering and protecting the outside of the fireworks board made of thin paper 1 and 2 coated with gunpowder, and the thin paper 1 and 2 with gunpowder coated inside are provided safely. The present invention provides toy fireworks that can be protected against fireworks.

[Means to solve the problem]

This idea involves folding a rectangular piece of cardboard in half, providing a perforation 8 in the middle of the front and back sides for separation, and inserting two separate rectangular sheets between the supporting plates 5 and 5' above the perforation 8. Fireworks powder 3 on the entire surface between thin paper 1 and 2
and apply black gunpowder 4 for ignition to the entire lower side.
Sandwich and glue the upper part of the fireworks board coated with
Plate cover 7, 7' at the free end below perforation 8
This relates to a technical means that covers both sides of the firework board.

[Effect]

According to this invention, both sides of the fireworks board whose upper part is glued between the cardboard support plates 5, 5' can be covered with board covers 7, 7', so that the fireworks board can be bent during transportation, packing, etc. , can prevent damage.

〔Example〕

Next, an embodiment of the plate-shaped toy firework of this invention will be described based on the drawings.

Figure 1 is a perspective view of the entire structure with one part cut off to make it easier to see the inside.A rectangular piece of cardboard is folded in half and a perforation 8 is made in the middle of the front and back sides for separation. Below the cardboard support plates 5, 5 above the perforation 8, fireworks powder 3 mixed with diluted glue is applied to the entire surface between the thin paper 1 and 2, and the entire lower side of the thin paper is filled with ignition powder. The upper part of a fireworks board coated with black gunpowder 4 is sandwiched and glued. Furthermore, in the embodiment, an ignition port 6 coated with easy-to-ignite gunpowder is provided in the center of the black powder on the lower side of the firework board.

Next, there are plate covers 7, 7' which are hung so as to cover the outside of the thin papers 1, 2, with the portions below the perforations 8 below the two cardboard support plates 5, 5' serving as free ends. .

Since this plate cover has a slightly larger surface than the thin papers 1 and 2, it is provided so that the thin explosive paper is sufficiently safely protected.

What is shown in FIG. 2 is a front view of a state in which the main parts are cut out to expose the inside of the thin paper, and the outer cover is cut away from the perforation line, that is, the state in which the firework can be ignited is shown.

Figure 3 is a side view of the plate-shaped toy firework of this invention, with its lower and outer sides protected by plate covers 7 and 7', showing that the thin paper with gunpowder inserted inside is bent, and pressure shocks from the outside occur. Improvements have been made to prevent damage caused by Further, in the drawing, a round hole 9 is provided above the upper support plate for inserting a long stick when igniting the firework, so that the firework can be supported at an appropriate distance and used safely.

Figure 4 also shows a toy firework of this invention, with the outer plate cover removed and the fireworks ignited.
For reference, only the main parts of a conventionally known toy firework are shown in FIG. Codes 1' and 2' in the figure are thin paper;
3' is the internal gunpowder, 4' is the black gunpowder on the lower side, and 6' is the ignition port provided at the left end.

[Effect of idea]

According to this invention, both sides of the fireworks board whose upper part is sandwiched between support plates are covered with cardboard board covers, so the fireworks board made of thin paper will not be bent during transportation or packing. Further, since it is possible to prevent direct impact from being applied from the outside, the fireworks board can be safely transported, packed, etc. without being damaged, and it is also possible to prevent the fireworks board from becoming damp. Also, since the firework is covered, it can be safely carried by the user, and only when the firework is used, the firework board can be separated from the perforation to expose the firework board, which is convenient for igniting and burning.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the toy firework with a cover of this invention with a part cut away to expose the inside, Fig. 2 is a front view of the main part of the firework with the firework section similarly cut away, and Fig. 3 is a side view. FIG. 4 is a side view of the igniter with the outer plate cover removed, and FIG. 5 is a cutaway view of the main part showing the position of the ignition port of the conventional product. 1, 2... Thin paper, 3... Fireworks, 4... Black gunpowder, 5, 5'... Support plate, 7, 7'... Plate cover, 8... Perforation.

Claims (1)

[Scope of utility model registration request] A rectangular piece of cardboard is folded in two, a perforation 8 is provided in the middle of the front and back sides for separation, and two separate sheets of rectangular thin paper 1 are provided between the support plates 5 and 5' above the perforation 8. , apply fireworks gunpowder 3 to the entire surface between 2,
Then, the upper part of the fireworks board, which is made by coating the entire lower side with black powder 4 for ignition, is sandwiched and glued, and the perforation 8 is
Fireworks board A with the lower free end board covers 7, 7'
A plate-shaped toy firework with a cover, characterized in that both sides of the firework are covered.