JPH01305300A - Flute-sound for sky rocket firecracker - Google Patents

Abstract

PURPOSE:To permit the loading of a flute-sound firecracker into the ball of a sky rocket, by a method wherein a predetermined amount of fluting charge is loaded at the bottom of a fluting pipe formed by employing a rigid tubular body such as a paper pipe and the like and a predetermined amount of delay charge is loaded therein further while the igniting time point of the fluting charge is regulated by the delay charge. CONSTITUTION:A flute-sound firecracker for a sky rocket is prepared by loading fluting charge 2 into the bottom of a fluting pipe 1 and delay charge 3, burns comparatively slowly, is loaded thereon further. When the delay charge 3 of the flute-sound firecracker is ignited, the delay charge 3 burns at first and, thereafter, the fire moves to the fluting charge 2 and fluting sound may be generated. A proper time difference can be generated from the ignition of the flute-sound firecracker to the generation of the fluting sound and, therefore, the flute-sound firecracker may be loaded into the ball of the sky rocket. The time difference is proportional to the loading amount of the delay charge 3 and, therefore, the time difference may be regulated by regulating the loading amount of the delay charge 3.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to whistle-sounding fireworks for launching fireworks, and in particular to a method in which each whistle-sounding firework is loaded with delay gunpowder, and the timing of blowing is adjusted depending on the amount. It is characterized by the fact that

(Prior art) In general, buried fires involve rapidly burning gunpowder processed into a predetermined shape to produce flames, smoke, or bursting sounds. This whistle-sounding firework takes advantage of the fact that gunpowder generates a large amount of gas when it burns, and the gunpowder is loaded at the bottom of the blowpipe, and by burning it, it can produce a Gas is generated, creating a rapid airflow inside the pipe and producing a blowing sound.

Moreover, the blowing sound was quite loud, so it was expected that it could be used as a buried fire.

In particular, if this is added to the firework balls of fireworks and set off in the air, one can enjoy both the color and the sound, which further increases the value of viewing the fireworks.

(Problems with the prior art) However, with conventional whistle-sounding fireworks, even if the fireworks are loaded into a firework ball and launched, the fuse's flame transfers to the powder, which ignites and at the same time produces a whistle. The gunpowder of the fireworks is also ignited, and the exploding sound of the fireworks and the whistling sound of the smoke are emitted at the same time.

The blowing sound of the flute-sounding smoke and the exploding sound of the fireworks are overlapped, and the sound of the flute-sounding smoke is drowned out by the exploding sound of the fireworks, completely impairing the effect.

For this reason, in the past, it was not possible to add whistle-sounding fireworks to the fireworks balls of fireworks, and the whistle-sounding fireworks were only used alone.

(Object of the Invention) The present invention allows the whistle-sounding smoke to be charged into a firework ball for launching fireworks by adjusting the ignition point of the gunpowder so that the blowing sound is emitted at a desired time, and further, To provide fireworks that play an appropriate temperament by combining a plurality of whistle-sounding fireworks with different ignition points.

(Function) The whistle-sounding firework for launching fireworks according to the present invention is produced by loading an appropriate amount of retarded gunpowder into the blowing tube of the whistle-sounding firework, which is loaded with blowing gunpowder at the bottom of the blowing tube, and igniting the whistle-sounding firework with this gunpowder. The blowing sound is emitted at a desired point of time by adjusting the time difference between when the fired flame ignites the blowing gunpowder.

(Summary of the Invention) The whistle-sounding smoke for launching fireworks according to the present invention is produced by loading a blowing gunpowder at the bottom of a blowing tube, and further loading a retardant gunpowder that burns relatively slowly on top of the blowing gunpowder. When the retarded gunpowder (delayed gunpowder) is ignited, the retarded gunpowder first burns, and then the fire transfers to the blowing gunpowder, which makes a blowing sound. This creates an appropriate time difference.

(Example) Hereinafter, the whistle-sounding fireworks for launching fireworks according to the present invention will be specifically described based on the illustrated examples.

The first section shows the basic structure of a whistle-sounding firework. In the figure, 1 is a blowing tube, 2 is a blowing gunpowder, and 3 is a delayed gunpowder.
The whistle-sounding smoker is a traditional whistle, except that the blowing tube 1 is loaded with delayed gunpowder 3, and when it is ignited, the delayed gunpowder 3 burns first, and then the flame is transferred to the blowing gunpowder 2. There is nothing different from the sound smoke.

That is, the blowing pipe 3 is a part that emits a blowing sound, and is a kind of whistle, and is formed using a sturdy pipe body such as a paper tube.
A bottom surface 4 is provided at the lower end, and a blower M4 is loaded onto the bottom surface 4.

Blow gunpowder 4 is the same as that of conventional whistle fireworks, and is formed by mixing potassium perchlorate, potassium nitrate, salicylic acid, picric acid, benzoic acid, and auxiliary combustion powder, and has a moderate amount of heat when burned. It is designed to generate a large amount of gas at a high speed.

Therefore, when the blowing gunpowder 4 is ignited, the gas generated generates an air current inside the blowing tube 3, and this gas is further ejected from the tip of the blowing tube 3, so that a blowing sound is emitted from the blowing tube 3.

The delayed gunpowder 3 covers the blowing gunpowder 2 in the blowing tube 1 to prevent the blowing gunpowder 2 from igniting at the same time and emitting a blowing sound when the whistle-sounding smoke is ignited, and also to prevent it from being ignited first. However, by causing the residue to transfer to the blasting fire N2, a predetermined time difference is created between the ignition of the whistling smoke and the ignition of the blasting powder 2, thereby delaying the point at which the blasting sound is emitted. be.

Therefore, for the delay hole N3, a relatively slowly burning gunpowder other than a blowing gunpowder, such as a bright flame gunpowder or a smoke gunpowder, is used.

In other words, the above-mentioned time difference is the time required from when the upper surface of the delayed gunpowder 3 ignites until the flame reaches the lower surface. Therefore 2. Since the time difference between the two is proportional to the amount of retarded gunpowder 3 loaded, the upstream closing difference can be adjusted by adjusting this amount.

Similarly, the length of the blasting sound can be adjusted by adjusting the loading amount of the blasting gunpowder 2; Even if the upper surface of the delayed gunpowder 3 is located much whiter than the tip of the blowing tube 1, it is ignited. However, when there is a possibility that the explosive will not ignite or when it is used in other ways, it is important to attach a transfer powder or a fuse on top of the retarded explosive 3 to ensure ignition.

Incidentally, the height (frequency) of the blowing sound is determined by the inner diameter and length of the blowing pipe 1.

That is, a thick and long blowing tube emits a low blowing sound, and a thin and short blowing tube produces a loud blowing sound.

Therefore, if the inner diameter and length of the blowing pipe 1 are adjusted appropriately in advance, a blowing sound of a desired height can be emitted. By loading the gunpowder 3, a whistling firework that emits a blowing sound of a predetermined height at a predetermined time point can be obtained.

Therefore, by combining a plurality of whistle-sounding fireworks with different blowing sound pitches and blowing times, a buried fire that plays a desired musical temperament can be obtained.

Fig. 2 shows a bottom surface 4 formed at an appropriate position inside the blowing tube 1, which allows the length of the outer diameter of the blowing tube 1 to be constant and the effective length to be adjusted to a predetermined dimension. . In particular, in the embodiment shown in the drawings, the original bottom surface 4 is attached to the lower end of the blowing tube 1, and a bottom member 5 is further mounted thereon to give the appearance of an upper bottom surface 4a.

Since the effective length of the blowing tube 1 can be adjusted depending on the loading amount of the bottom member 5, manufacturing of the blowing tube 1 is simplified, and the outer diameter of the blowing tube 1 is independent of the length of the effective length. Since the dimensions can be made constant, it is suitable for being placed on top of fireworks for launching fireworks.

(Effects) As detailed above, the whistle-sounding smoke according to the present invention is produced by loading the delay gunpowder 3 onto the blowing gunpowder 2 of the blowing tube 1, thereby adjusting the blowing gunpowder 2 so that it ignites at a predetermined time. Since it is extremely easy to adjust and can reliably delay the time of expulsion, it can be placed on top of the fireworks used for launching fireworks.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing one embodiment of a whistle-sounding firework according to the present invention, and FIG. 2 is a perspective view showing another embodiment. 1: Blow tube 2: Blow gunpowder 3: Delay hole M 4: Bottom surface 5: Bottom member

Claims (1)

[Claims] A predetermined amount of blowing powder is loaded into the bottom of a blowing tube formed using a sturdy tube such as a paper tube, and a predetermined amount of retarded gunpowder is further loaded on top of it, and the ignition point of the blowing gunpowder is determined by this delayed gunpowder. A whistle-sounding firework for launching fireworks, characterized by being adjustable.