JPH0419355Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention is incorporated into the fireworks of fireworks,
This relates to the flying objects that are released and scattered when the fireball explodes.

[Conventional technology]

The flying objects embedded in the fireworks fireworks are
For injection propulsion, a container is required that can generate high internal pressure in order to blow out combustion gas and flame, and metal cans, paper tubes, etc. are usually used as containers. These will be explained below using figures.
FIG. 4 is a cross-sectional view of a conventional example using a metal can.
In the figure, 1 is a metal can, 2 is a propellant, 3 is a paperboard disk, and 4 is a fuse.

FIG. 5 is a cross-sectional view of a conventional example using a paper tube. In the figure, 5 is a paper tube, 2 is a propellant, 6 is clay,
4 is a fuse.

Such projectiles have high internal combustion pressure,
The greater the jetting force, the more effective the fireworks will be because they will scatter over a wider area.

[Problem that the invention attempts to solve]

However, although metal can-bodied projectiles are excellent at achieving high combustion pressure, they are heated red during combustion and can cause fires and burns if they fall to the ground, as well as being heavy and having a short flight distance. There is a problem.

Furthermore, in the case of paper tubes, the opening is sealed with clay, which increases the weight of the container, shortens the flying distance, and reduces the effectiveness of the flying object.

[Means for solving problems]

This invention is a flying object that is stored inside the fireworks of a firework and is scattered in all directions by the explosion of the fireworks.The projector is made by filling a paper tube with propellant, inserting a plate into the openings at both ends, and drawing it. It is characterized by being hermetically sealed and having an injection port on one of the plates to which ignition powder is applied.

[Effect]

According to the above configuration, the flying object that is scattered in all directions by the explosion of the fireball ignites the ignition powder and blows out combustion gas and flame, producing the effect of fireworks. The flying distance is long and the projectiles spread over a wide area, making it an effective fireworks display.

[Examples] Examples of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view of a paper tube showing an embodiment of the present invention, FIG. 2 is a sectional view of the paper tube in a formed state, and FIG.
The figure is a cross-sectional view of the completed state. In the figure, 7 is a paper tube, and it is advantageous to have a flat-wound shape rather than a Langston-wound one because there is a drawing process during molding. Reference numeral 8 designates a plate material fitted to one side of the paper tube 7, which is made of metal, paperboard, etc., and has an injection port 9.

Therefore, as shown in FIG.
Since the plate material 8 is a thin material, it fits well with the squeezed paper tube 7, and the total weight of the container can be reduced. As shown in FIG. 3, the paper tube 7 is filled with propellant 10 and closed with a plate material 11 such as metal or paperboard, and the end of the paper tube 7 is squeezed to hold the plate material 11. A resin adhesive 12 is applied around the periphery and the periphery of the aperture end to improve sealing, and an igniter 13 is applied to the injection port 9 to complete the process.

According to the above configuration, the flying object that flies in all directions due to the explosion of the launched fireball ignites the ignition charge 13 in the injection port 9 and immediately ignites the propellant 10, causing combustion gas and flames to ignite. Blow out to create a fireworks effect.

In addition, since the entire body is lightweight during flight, the flying object can travel a sufficient distance and can be scattered over a wide range.

[Effect of idea]

According to the invention described above, both ends of the paper tube are closed with plate materials and held by drawing, and the paper tube is filled with propellant, making the entire structure lightweight. As the speed increases, the flying distance increases, and the viewing effect of the fireworks becomes greater.

[Brief explanation of the drawing]

Figure 1 is a sectional view of the paper tube of the present invention with a plate fitted into it, Figure 2 is a sectional view of the paper tube after drawing, Figure 3 is a sectional view of the completed product, and Figure 4 is a cross-sectional view of the paper tube of the present invention. FIG. 5 is a sectional view of the second conventional example. 7...Paper tube, 8...Plate material, 10...Injection propellant, 11...Plate material, 13...Ignition powder.

Claims (1)

[Scope of Claim for Utility Model Registration] In a flying object that is housed in multiple fireworks in a firework and is scattered in all directions by the explosion of the fireworks, a paper tube is filled with a propellant and a plate is attached to the openings at both ends. A projectile object for launching fireworks, characterized in that it is fitted and sealed by drawing processing, an injection port is provided in one of the plates, an ignition charge is applied, and the projectile is connected to the above-mentioned injection propellant.