JPH033833Y2 - - Google Patents

Description

[Detailed explanation of the idea] * Industrial application fields This invention relates to toy fireworks.

*Problems to be solved by conventional techniques and ideas Toy fireworks such as sparklers, which are made by directly fixing gunpowder to a core material such as wire, wood, bamboo, or paper, have been used for a long time. By the way, the amount of gunpowder per toy firework is regulated to below a certain amount by law from the viewpoint of safety, etc., so unlike conventional toy fireworks, a limited amount of gunpowder is directly fixed to the core material. In this case, the shape of the gunpowder part must be a straight or curved thin rod or thin plate that corresponds to the core material. Therefore, when one end of the gunpowder part is ignited, the gunpowder part burns sequentially in the form of dots if the gunpowder part is shaped like a thin rod, and burns in a linear pattern if the part is shaped like a thin plate. It lacks interest in some respects. In addition, if the core material is made of combustible material such as wood, bamboo, or paper, the core material will also burn, which may hinder the combustion of the gunpowder, and not only will the beauty of the flame color of the gunpowder be impaired. It may also cause risks such as burns and fire. On the other hand, when the core material is wire, the wire is heated by the combustion of the gunpowder, which may cause burns to hands and fingers.

In order to solve these problems, the present applicant, in Utility Application No. 176,498 filed on November 15, 1985, fixed a non-combustible material to the core material and applied explosives to the surface of the non-combustible material. However, the present invention further improves this and not only solves the above problems, but also provides toy fireworks with interesting changes in combustion. be.

*Means for solving the problem In the toy firework of the present invention, a noncombustible material is fixed to one end of the core material in the shape of a thick rod, and gunpowder is fixed to the entire surface of the noncombustible material.
A noncombustible material is fixed to the surface of the tip of the gunpowder, and the gunpowder is fixed to the entire surface of the noncombustible material at the tip.
Various materials can be used as the noncombustible material, but one example is one made of asbestos powder hardened with an adhesive.

*Example Next, the present invention will be specifically explained with reference to the illustrated example. Reference numeral 1 indicates a thin rod-shaped core material such as wire, wood, bamboo material, or the like. A non-combustible material 2 made of asbestos powder solidified with adhesive is fixed to one end of the core material 1 in the shape of a thick rod, gunpowder 3 is fixed to the surface of the non-combustible material 2, and a non-combustible material is attached to the surface of the tip of the gunpowder 3. 4 is fixed, and gunpowder 5 is fixed on the surface of the noncombustible material 4.

* Effect When the tip (lower end) of the gunpowder 5 in the toy firework shown in FIG. 1 is ignited, the gunpowder 5 burns upward in an annular shape. Subsequently, the gunpowder 3 is ignited at the joint 6 between the gunpowder 5 and the gunpowder 3, and the gunpowder 3 burns in an annular shape both upward and downward. When the gunpowder 3 burns downward, the non-combustible material 4 is blown away. Note that when the noncombustible material 4 is formed thinly, the inner gunpowder 3 is heated and ignited by the combustion of the outer gunpowder 5, blowing away the noncombustible material 4 and emitting flame.

*Effect The toy firework of the present invention has a non-combustible material fixed to one end of the core material in the form of a thick rod, and gunpowder is fixed to the entire surface of the non-combustible material.
A non-combustible material is fixed to the surface of the tip of the gunpowder, and the gunpowder is fixed to the entire surface of the non-combustible material at the tip, so when the tip (lower end) of the gunpowder 5 is ignited, the fire emits an annular flame. The gunpowder 3 is ignited at the junction 6 between the gunpowder 5 and the gunpowder 3, and thereafter, the flame moves both upward and downward simultaneously along the gunpowder 3 while emitting an annular flame. That is, the fire once moves upward from the lower end of the toy firework, and then splits into upper and lower parts and moves to the upper and lower ends of the gunpowder 3, respectively.

Thus, unlike conventional toy fireworks, the toy fireworks of the present invention allow users to enjoy interesting combustion with changes in the movement of the flames.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an example of a toy firework according to the present invention, FIG. 2 is a sectional view taken along the line shown in FIG. 1,
FIG. 3 is a sectional view taken along the line shown in FIG. 1, and FIG. 4 is a perspective view showing the same toy firework. 1: Core material, 2: Nonflammable material, 3: Gunpowder, 4: Noncombustible material, 5: Gunpowder, 6: Joint part.

Claims (1)

[Scope of utility model registration request] A noncombustible material 2 is fixed to one end of the core material 1 in the shape of a thick rod,
This toy firework is made by fixing gunpowder 3 to the entire surface of the non-combustible material 2, fixing non-combustible material 4 to the surface of the tip of the gunpowder 3, and fixing gunpowder 5 to the entire surface of the non-combustible material 4 at the tip.