JP2001201299A - Toy firework and its installation stand - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide toy fireworks, that use a paper jointing tube whose lower end part is blocked by cement mortar to nearly solve many difficult problems that conventional toy fireworks have, and its installation stand. SOLUTION: After powder or the like is filled into a paper jointing tube, a plug body that is made of an organic material is stuck, in a sealed state, to a specific part close to the base edge in its inner empty part in the paper jointing tube, thus preventing the explosion pressure of the powder from escaping from the base edge side of the paper jointing tube. The plug body may be stuck to the tip of an inner cylinder made of paper with a prescribed length that is internally fitted to the base edge of the paper jointing tube in a stuck state. Then, the installation stand is provided with a stand being installed on the ground and an insertion member that is connected, so that it can be erected and brought down easily on the stand by a pin and is provided in the prescribed length in a shape for inserting into the inner pipe.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toy fireworks in which a paper tube is filled with explosives such as stars and propellants, in which the structure of the paper tube is improved, and a stand for the same.

[0002]

2. Description of the Related Art FIG. 3 shows an example of a conventional toy fireworks of the type described above. Made to fire multiple stars,
In the toy fireworks 50, a predetermined length at the lower end of a cylindrical paper tube 51 is filled with cement mortar to form a bottom plug 52 of the paper tube 51. Then, a plurality of sets of propellants such as propellant 53 and stars 54 are alternately filled on the bottom plug 52. The bottom plug 52 reliably prevents the explosive pressure of the propellant 53 from escaping to the lower end side of the paper tube 51, and plays a role in eliminating the occurrence of an accident.

[0003]

However, the paper tube 51
The conventional toy fireworks 50 for launching in which the base end portion is closed with a cement mortar have notable disadvantages as listed below. (A) The filling operation of cement mortar is extremely inefficient. (B) Mortar adheres to the surface of the paper tube and tends to be soiled. (C) To mix cement mortar suitable for filling, skill is required. (D) The paper tube becomes quite heavy. (E) It takes time to remove the cement mortar prior to incineration of the waste paper tube after launch. (F) If a used paper tube without removing the cement mortar is brought into a garbage disposal site, the processing cost will increase accordingly.

Accordingly, an object of the present invention is to provide a toy fireworks which uses a paper tube whose inner space at the lower end is closed with cement mortar and which can substantially eliminate the above-noted difficulties of conventional toy fireworks. To provide. An additional object of the present invention is to provide a firework stationary table used when launching the toy fireworks.

[0005]

In order to achieve the above object, a toy fireworks according to the present invention is a fireworks in which explosives are filled in a paper tube. An explosive pressure of explosives is prevented from leaking from the proximal end of the paper tube by a stopper made of an organic material, which is fixed in a sealed state at a predetermined position near the end. . The plug may be made by laminating a plurality of paperboards.
The plug is preferably fixed to the distal end of a paper-made inner tube of a predetermined length that is fitted inside the base end of the paper tube in a fixed state. Alternatively, the plug may be a cylinder of a predetermined length made of an organic material. As the organic material, paper, a synthetic resin, a porous synthetic resin, an aggregate of organic fibers, or a composite thereof may be used.

In the toy fireworks table according to the present invention, the inner tube 3 is fixedly fitted to the base end of the paper tube 1 filled with explosives, and the tip of the inner tube 3 is plugged. The toy fireworks having the configuration closed in 2 are to be laid on the ground at the time of launch, and a base 21 to be laid on the ground, and a pin connected to the base 21 so as to be able to stand upright and fall down, And an insertion member 24 having a shape capable of being inserted into the tube 3 and having a predetermined length.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a toy fireworks according to the present invention will be described below with reference to FIG. A toy fireworks A of this embodiment of a launch type has a required length and thickness, and is a pipe-shaped paper tube 1 serving also as a firework launch tube.
Is the casing.

A plug 2 is fitted into the inner space of the paper tube 1 at a predetermined distance from a base end (lower end) thereof. An inner tube 3 made of paper is tightly fitted between the plug 2 and the proximal end of the paper tube 1.

In the case of the toy fireworks A, the propellant 11, the star 12, and the delaying drug 13 are alternately arranged in the upper part from the plug 2 in the paper tube 1 in order from the lower side as shown in the figure. The tube is filled in multiple stages until it reaches near the end of the tube, and the upper end portion is closed with an ignition charge 14. The contents to be packed in the paper tube 1 are, of course, not limited to those shown in the drawings, and vary depending on the type of fireworks.

The plug 2 and the inner tube 3 serve to reliably prevent the explosive pressure of the propellant 11 from coming out of the proximal end of the paper tube 1. The plug 2 of this embodiment is made by laminating a plurality of paperboard disks 2a. The inner tube 3 is formed of a paper tube cut to a predetermined length. Note that the lower end of the inner tube 3 does not have to reach the lower end of the paper tube 1.

To attach the plug 2 and the inner tube 3 to the base end of the paper tube 1 as shown in the drawing, for example, the plug 2 is fixed to the distal end of the inner tube 3 with an adhesive or the like. An adhesive may be applied to the outer peripheral surfaces of the plug 2 and the inner tube 3 and then inserted into the proximal end of the paper tube 1.

The thickness of the plug 2 and the thickness and length of the inner tube 3 may be selected according to the structure and size of each toy fireworks so as to sufficiently withstand the above-mentioned explosion pressure.

In the toy fireworks A of this embodiment, paper is used as the material of the plug 2 and the inner tube 3. But besides paper,
An organic material such as a synthetic resin, a porous synthetic resin, an aggregate of organic fibers alone, or a composite thereof may be used.

In this case, the plug 2 and the inner tube 3 may be made integrally, or the inner tube 3 may be omitted, and the plug 2 may be formed in a cylindrical shape having a predetermined length. I have. Then, as necessary, for example, a flame-retardant paint may be applied or a metal foil may be attached as a measure against the flame on the end surface of the plug 2.

If the material of the plug 2 and the inner tube 3 is an organic material as described above, unlike the conventional one in which the bottom of the paper tube is closed with cement mortar, the used paper tube 1 can be used. Because it can be incinerated easily, there is no need to worry about the waste disposal site.

Next, FIG. 2 is a view showing an embodiment of a stationary table for toy fireworks according to the present invention, which also explains the operation thereof. The stationary table B of this embodiment includes a table 21 for placing the toy fireworks A on the ground for launching, a bearing member 22 erected on the table 21, and a lower end of the bearing member 22 connected to the connecting pin 2.
3 and an insertion member 24 having a predetermined length, which is connected to the insertion member 24.

As shown, the insertion member 24 is formed in a conical shape that gradually becomes thinner toward its upper end. As shown in the drawing, the insertion member 24 is a toy fireworks A.
The inner pipe 3 is inserted into the inner space a of the inner pipe 3 opening to the base end side of the paper pipe 1.

When the stationary table B is not used or is packed as a product, it is convenient not to be bulky if it is placed sideways as shown by the phantom line in the figure. However, the bearing member 22 and the connecting pin 23 may be omitted, and the insertion member 24 and the base 21 may be integrated.

When using the mounting table B, the fireworks launch direction is determined, and the insertion member 24 is rotated around the connecting pin 23 to rise to an appropriate inclination angle. By firmly adjusting the sliding resistance at the pin connection point, the pin can be reliably fixed at an arbitrary rising angle.

When the table B is set in this manner, the inner tube 3 of the toy fireworks A is inserted firmly into the conical surface of the insertion member 24, and the toys fireworks A are maintained in a desired inclination angle. , Is securely fixed to the table B. If the insertion member 24 is made of a rubber-like elastic material, it can be inserted more firmly. Also at this stage, the inclination angle of the toy fireworks A can be freely changed.

As shown by the imaginary line in the figure, the insertion member 24 is formed in a conical shape, so that only one mounting table B can be used to make the thickness of the paper tube 1 considerably large. It can also be used for various different toy fireworks.

Since the paper tube 1 which has become garbage after the launch is not filled with cement mortar unlike the conventional one, there is no need to remove the cement mortar before throwing it away. The paper tube 1 made of only a flammable material burns completely even when it is incinerated, so that the burden on the garbage disposal site does not need to be increased.

In addition, instead of the conical insertion member 24, a tube wall on the base end side of the paper tube 1 may be sandwiched by a clip-like body (not shown) attached to the base 21. . Alternatively, a spring-like body or the like configured to be elastically pushed into the inner tube 3 may be used.

[0024]

As is apparent from the above description, the toy fireworks according to the present invention are practically superior to the conventional fireworks in which the base end of a paper tube is filled with cement mortar as described below. It works. (A) The operation of filling cement mortar which is extremely inefficient and requires some skill is unnecessary. (B) Mortar does not adhere to the surface of the paper tube and is not contaminated. (C) The weight of the paper tube can be considerably reduced. (D) And, of course, safety in handling can be ensured to be equal to or higher than that using cement mortar. (E) It is not necessary to remove the cement mortar prior to incineration of the paper tube which has become trash after the launch. (F) A used paper tube made of only a flammable material can be discarded without increasing the burden on a garbage disposal site. (G) In some cases, it can be recycled as waste paper.

Further, the stationary table of the toy fireworks according to the present invention has the following effects. (H) It can be used for multiple types of toy fireworks whose paper tubes have considerably different thicknesses. (I) The launch angle of the fireworks can be changed extremely easily and reliably. (J) If the insertion member is folded, it can be stored without bulk.
Can be transported.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of a toy fireworks according to the present invention.

FIG. 2 shows an embodiment of a stationary table according to the present invention.
It is a front view also serving as an explanation of the operation.

FIG. 3 shows a conventional example, and is a view corresponding to FIG.

[Explanation of symbols]

 A Toy Fireworks B Stationary Table 1 Paper Tube 2 Plug 2a Paperboard Disk 3 Inner Tube a Inner Space 11 Propellant 12 Star 21 Base 22 Bearing Member 23 Connecting Pin 24 Insertion Member 50 Conventional Toy Fireworks 51 Paper Tube 52 Cement mortar (bottom plug) 53 Propellant 54 Star

Claims (6)

[Claims] 1. A paper tube in which explosives are filled, wherein said paper tube is sealed by a plug made of an organic material and fixed at a predetermined position near a base end of an inner space thereof. A toy firework, which is configured to prevent explosive pressure of explosives from escaping from a base end of a paper tube. 2. The toy fireworks according to claim 1, wherein the plug comprises a laminate of a plurality of paperboards. 3. The paper tube according to claim 1, wherein the stopper is fixed to a distal end of a paper-made inner tube of a predetermined length fixedly fitted to a base end of the paper tube. 2. The toy fireworks according to 2. 4. The toy fireworks according to claim 1, wherein the plug is a cylindrical body having a predetermined length made of an organic material. 5. The toy fireworks according to claim 1, wherein the organic material is made of paper, a synthetic resin, a porous synthetic resin, an aggregate of organic fibers, or a composite thereof. . 6. A toy fireworks having a structure in which an inner tube 3 is fixedly fitted to a base end of a paper tube 1 filled with explosives in a fixed state, and a distal end of the inner tube 3 is closed with a plug 2. A base 21 to be placed on the ground at the time of launching; a base 21 to be placed on the ground; and a pin connected to the base 21 so as to be capable of standing up and down and being inserted into the inner tube 3. A stationary table for toy fireworks, comprising a length of the insertion member 24.