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JP3842860B2 - Ignition powder in toy fireworks and toy fireworks using the same - Google Patents
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JP3842860B2 - Ignition powder in toy fireworks and toy fireworks using the same - Google Patents

Ignition powder in toy fireworks and toy fireworks using the same Download PDF

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Publication number
JP3842860B2
JP3842860B2 JP03559897A JP3559897A JP3842860B2 JP 3842860 B2 JP3842860 B2 JP 3842860B2 JP 03559897 A JP03559897 A JP 03559897A JP 3559897 A JP3559897 A JP 3559897A JP 3842860 B2 JP3842860 B2 JP 3842860B2
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Japan
Prior art keywords
explosive layer
fireworks
ignition
layer
explosive
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JP03559897A
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JPH10220999A (en
Inventor
吉勝 井上
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Inoue Toy Fireworks Mfg Co Ltd
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Inoue Toy Fireworks Mfg Co Ltd
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Priority to JP03559897A priority Critical patent/JP3842860B2/en
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Description

【0001】
【発明の属する技術分野】
本発明は、玩具花火における着火薬及び該着火薬を用いた玩具花火に関するものである。
【0002】
【従来の技術】
火薬部の先端に燃焼速度が遅い(低い)着火薬を固着してなる玩具花火及び複数の花火を燃焼速度が遅い着火薬を介して連結してなる玩具花火が既に知られている。玩具花火に使用されている従来の着火薬の燃焼速度は遅く、一般に約100mm/秒程度である。
【0003】
【発明が解決しようとする課題】
火薬部の先端に着火薬を固着してなる従来の玩具花火においては、該着火薬の燃焼速度が遅いため、例えば図2に示すように火薬部1の先端に固着した着火薬3の一端3aに点火したときには、まず着火薬3の当該一端3aが燃焼を開始し、やがて火は着火薬3の中央部3b、3bを経て徐々に着火薬3の他端3cに移る。しかるに、火が着火薬3の一端3aから他端3cに燃え移るまでに相当の時間を要するため、その間に着火薬3の燃焼による熱が逐次大気中に逃げ出してしまい、その結果、火薬部1が着火温度まで加熱されないまま、着火薬3が燃え尽きるおそれもある。換言すれば、このような着火薬3を固着した火薬部1は火付きが悪いということになる。なお、図2における符号5に示すものは点火手段としてのロウソクである。
【0004】
一方、複数の花火を燃焼速度が遅い着火薬を介して連結してなる玩具花火においては、一つの花火が着火した後、他の花火が着火するまでに相当の時間を要するため、複数の花火を同時に燃焼させることができないという問題がある。
【0005】
本発明は従来の技術における上述の如き問題を解決しようとしてなされたものである。
【0006】
【課題を解決するための手段】
上記課題を解決するために、本発明は下記の着火薬及び玩具花火を提供するものである。
【0007】
(1)外側火薬層と内側火薬層とよりなり、外側火薬層は内側火薬層よりも燃焼速度が速く(高く)且つ外側火薬層と内側火薬層とは着火温度がほぼ等しくなるようにしたことを特徴とする玩具花火における着火薬(請求項1)。
【0008】
(2)外側火薬層と内側火薬層とよりなり、外側火薬層は内側火薬層よりも燃焼速度が速く且つ外側火薬層と内側火薬層とは着火温度がほぼ等しくなるようにした着火薬を介して複数の花火を連結してなることを特徴とする玩具花火(請求項2)。
【0009】
(3)外側火薬層と内側火薬層とよりなり、外側火薬層は内側火薬層よりも燃焼速度が速く且つ外側火薬層と内側火薬層とは着火温度がほぼ等しくなるようにした着火薬と燃焼速度が遅い単一の火薬層よりなる着火薬とを介して複数の花火を連結してなることを特徴とする玩具花火(請求項3)。
【0010】
(4)複数本の花火の一端を支持手段に支持させ、他端を着火薬により連結してなる玩具花火において、該火薬層は外側火薬層と内側火薬層とよりなり、外側火薬層は内側火薬層よりも燃焼速度が速く且つ外側火薬層と内側火薬層とは着火温度がほぼ等しくなるようにしたことを特徴とする玩具花火(請求項4)。
【0011】
【作用】
[請求項1の着火薬]
請求項1の着火薬に点火すると、火は燃焼速度が速い外側火薬層に沿って着火薬の全表面に一挙に広がる(図1参照)。即ち、着火薬の全表面がほぼ同時に燃焼を開始する。しかして、内側火薬層は外側火薬層と着火温度がほぼ等しいのであるから、着火薬の全表面(外側火薬層の全表面)がほぼ同時に燃焼を開始した直後に内側火薬層の全面が外側火薬層の燃焼熱によりほぼ同時に燃焼を開始する。換言すれば、着火薬全体が点火直後にほぼ同時に燃焼を開始することになる。また、内側火薬層は燃焼速度が遅いため、蓄熱作用をなす(この点は請求項2〜4における着火薬の内側火薬層についても同様である。)。従って、玩具花火の火薬部は着火薬の燃焼熱により効率良く集中的に加熱され、確実に着火する。
【0012】
[請求項2の玩具花火]
請求項2の玩具花火においては、着火薬の一端に点火すると、火は燃焼速度が速い着火薬の外側火薬層に沿って着火薬の全表面に一挙に広がる。即ち、着火薬の全表面がほぼ同時に燃焼を開始する。しかして、内側火薬層は外側火薬層と着火温度がほぼ等しいのであるから、着火薬の全表面(外側火薬層の全表面)がほぼ同時に燃焼を開始した直後に内側火薬層の全面が外側火薬層の燃焼熱によりほぼ同時に燃焼を開始する。換言すれば、着火薬全体が点火直後にほぼ同時に燃焼を開始することになる。従って、着火薬を介して連結されている複数の花火がほぼ同時に燃焼を開始する。この場合、各花火の火薬部が着火薬の燃焼熱により効率良く集中的に加熱され、確実に着火することは、請求項1について述べたことと同様である。
【0013】
[請求項3の玩具花火]
請求項3の玩具花火においては、着火薬の一端に点火すると、外側火薬層と内側火薬層とよりなる着火薬については、火は燃焼速度が速い着火薬の外側火薬層に沿って着火薬の全表面に一挙に広がり、着火薬の全表面がほぼ同時に燃焼を開始する。しかして、内側火薬層は外側火薬層と着火温度がほぼ等しいのであるから、着火薬の全表面(外側火薬層の全表面)がほぼ同時に燃焼を開始した直後に内側火薬層の全面が外側火薬層の燃焼熱によりほぼ同時に燃焼を開始する。換言すれば、該着火薬全体が点火直後にほぼ同時に燃焼を開始することになる。従って、当該着火薬に連結されている花火が着火薬の点火後直ちに燃焼を開始する。一方、燃焼速度が遅い単一の火薬層よりなる着火薬については、火は徐々に燃え進み、やがて当該着火薬に連結されている花火が燃焼を開始する。従って、これら2種類の着火薬の組合せにより、各花火の燃焼のタイミングを調節し、或いは着火薬に点火した後、最初の花火が着火するまでの時間を調節することができる。
【0014】
[請求項4の玩具花火]
請求項4の玩具花火においては、複数本の花火の前記他端を連結している着火薬に点火すると、火は燃焼速度が速い着火薬の外側火薬層に沿って着火薬の全表面に一挙に広がる。即ち、着火薬の全表面がほぼ同時に燃焼を開始する。しかして、内側火薬層は外側火薬層と着火温度がほぼ等しいのであるから、着火薬の全表面(外側火薬層の全表面)がほぼ同時に燃焼を開始した直後に内側火薬層の全面が外側火薬層の燃焼熱によりほぼ同時に燃焼を開始する。換言すれば、着火薬全体が点火直後にほぼ同時に燃焼を開始することになる。従って、着火薬を介して連結されている複数本の花火がほぼ同時に燃焼を開始する。この場合、各花火の火薬部が着火薬の燃焼熱により効率良く集中的に加熱され、確実に着火することは、請求項1について述べたことと同様である。
【0015】
【発明の実施の形態】
次に、本発明の実施の形態を添付図面に従って説明する。
符号11に示すものは本発明における着火薬である。着火薬11は外側火薬層13と内側火薬層15とよりなり、外側火薬層13は内側火薬層15よりも燃焼速度が速く且つ外側火薬層13と内側火薬層15とは着火温度がほぼ等しくなるようにする。なお、燃焼時の熱量は外側火薬層13よりも内側火薬層15の方が大であることが望ましい。
【0016】
外側火薬層13は約200mm/秒程度の燃焼速度と約350℃の着火温度を有する。外側火薬層13の組成は一例として下記の通りである。
硝酸カリウム 39.8重量部
硝酸バリウム 20.2重量部
過塩素酸カリウム 6.1重量部
硫黄 5.5重量部
木炭 14.4重量部
でんぷんのり 14.0重量部
【0017】
内側火薬層15は約100mm/秒程度の燃焼速度と約350℃の着火温度を有する。内側火薬層15の組成は一例として下記の通りである。
硝酸カリウム 5.0重量部
硝酸バリウム 38.1重量部
過塩素酸カリウム 19.7重量部
硫黄 5.3重量部
木炭 18.9重量部
でんぷんのり 13.0重量部
【0018】
図1に示す事例においては、着火薬11を玩具花火における火薬部17の先端に固着している。なお、図1における符号19に示すものは点火手段としてのロウソクである。
【0019】
図3は着火薬11を介して複数の花火21、21・・・を連結してなる玩具花火の一例を示すものである。符号23は花火21、21・・・を保持する保持体である。着火薬11を介して連結される花火21、21・・・は、例えば、ススキ、スパークラー、噴出し花火等、玩具花火であればいかなるものであってもよい。また、着火薬11は、一例として図4に示すように、芯材25に内側火薬層15と外側火薬層13とを固着させてなるものであってもよい。
【0020】
図5は、図3の変形例であって、複数の花火21、21・・・を前記着火薬11と燃焼速度が遅い単一の火薬層よりなる着火薬27とを介して連結してなる玩具花火の一例を示すものである。着火薬11と燃焼速度が遅い単一の火薬層よりなる着火薬27とは、一例として図6に示すように、芯材29に固着されている。着火薬27は約80mm/秒程度の燃焼速度と約400℃の着火温度を有する。着火薬27の組成は一例として下記の通りである。
硝酸カリウム 5.0重量部
硝酸バリウム 39.6重量部
過塩素酸カリウム 18.4重量部
炭酸カルシウム 4.9重量部
木炭 13.3重量部
でんぷんのり 18.8重量部
【0021】
図7は、複数本の花火31、31・・・の一端を支持手段33に支持させ、他端を前記着火薬11により連結してなる玩具花火を示すものである。着火薬11を介して連結される花火31、31・・・は、例えば、ススキ、スパークラー、噴出し花火等、玩具花火であればいかなるものであってもよい。この事例においては、着火薬11に点火すると花火31、31・・・は一斉に着火すると共に外方に開いて燃焼する。
【0022】
図8は複数本の花火41、41・・・の一端を前記着火薬11により連結してなる玩具花火を示すものである。着火薬11を介して連結される花火41、41・・・は、例えば、ススキ、スパークラー、噴出し花火等、玩具花火であればいかなるものであってもよい。
【0023】
【発明の効果】
[請求項1の着火薬]
請求項1の着火薬を用いた玩具花火における火薬部は着火薬の燃焼熱により効率良く集中的に加熱され、確実に着火する。
【0024】
[請求項2の玩具花火]
請求項2の玩具花火においては、着火薬を介して連結されている複数の花火がほぼ同時に燃焼を開始する。各花火の火薬部は着火薬の燃焼熱により効率良く集中的に加熱され、確実に着火する。
【0025】
[請求項3の玩具花火]
請求項3の玩具花火においては、外側火薬層と内側火薬層とよりなる着火薬と燃焼速度が遅い単一の火薬層よりなる着火薬とを組み合わせることにより、各花火の燃焼のタイミングを調節し、或いは着火薬に点火した後、最初の花火が着火するまでの時間を調節することができる。
【0026】
[請求項4の玩具花火]
請求項4の玩具花火においては、着火薬を介して連結されている複数本の花火がほぼ同時に燃焼を開始する。各花火の火薬部は着火薬の燃焼熱により効率良く集中的に加熱され、確実に着火する。
【図面の簡単な説明】
【図1】本発明による着火薬の一例を示す断面図である。
【図2】従来の着火薬を示す断面図である。
【図3】本発明による着火薬を用いた玩具花火の一例を示す正面図である。
【図4】図3のIV−IV線における端面図である。
【図5】本発明による着火薬を用いた玩具花火の別の一例を示す正面図である。
【図6】図5のVI−VI線における端面図である。
【図7】本発明による着火薬を用いた玩具花火の更に別の一例を示す正面図である。
【図8】本発明による着火薬を用いた玩具花火の更に別の一例を示す正面図である。
【符号の説明】
1 火薬部
3 着火薬
3a 一端
3b 中央部
3c 他端
5 ロウソク
11 着火薬
13 外側火薬層
15 内側火薬層
17 火薬部
19 ロウソク
21 花火
23 保持体
25 芯材
27 着火薬
29 芯材
31 花火
33 支持手段
41 花火
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an ignition powder for toy fireworks and toy fireworks using the ignition powder.
[0002]
[Prior art]
There are already known toy fireworks in which a low (low) ignition rate is fixed to the tip of the explosive part, and toy fireworks in which a plurality of fireworks are connected via a low combustion rate. The burning rate of conventional ignition agents used for toy fireworks is slow, generally about 100 mm / second.
[0003]
[Problems to be solved by the invention]
In the conventional toy fireworks in which an ignition powder is fixed to the tip of the explosive part, since the combustion speed of the ignition powder is slow, for example, one end 3a of the ignition powder 3 fixed to the tip of the explosive part 1 as shown in FIG. First, the one end 3a of the igniting agent 3 starts to combust, and then the fire gradually moves to the other end 3c of the igniting agent 3 through the central portions 3b and 3b of the igniting agent 3. However, since it takes a considerable amount of time for the fire to burn from the one end 3a to the other end 3c of the ignition powder 3, the heat generated by the combustion of the ignition powder 3 sequentially escapes into the atmosphere. As a result, the explosive unit 1 There is also a possibility that the ignition powder 3 may burn out without being heated to the ignition temperature. In other words, the explosive part 1 to which such an igniting powder 3 is fixed is poorly lit. In addition, what is shown with the code | symbol 5 in FIG. 2 is the candle as an ignition means.
[0004]
On the other hand, in the case of toy fireworks where multiple fireworks are connected via an ignition powder with a slow combustion speed, it takes a considerable amount of time for one firework to ignite and the other fireworks to ignite. There is a problem that cannot be burned simultaneously.
[0005]
The present invention has been made to solve the above-described problems in the prior art.
[0006]
[Means for Solving the Problems]
In order to solve the above problems, the present invention provides the following ignition powder and toy fireworks.
[0007]
(1) Composed of an outer explosive layer and an inner explosive layer, the outer explosive layer has a faster (higher) burning rate than the inner explosive layer, and the outer explosive layer and the inner explosive layer have substantially the same ignition temperature. An igniting agent for toy fireworks characterized by the above (Claim 1).
[0008]
(2) It consists of an outer explosive layer and an inner explosive layer, and the outer explosive layer has a burning rate faster than that of the inner explosive layer, and the outer explosive layer and the inner explosive layer are ignited through an explosive. A toy fireworks comprising a plurality of fireworks connected together (Claim 2).
[0009]
(3) Composed of an outer explosive layer and an inner explosive layer, the outer explosive layer has a faster burning rate than the inner explosive layer, and the outer explosive layer and the inner explosive layer have substantially the same ignition temperature and combustion. A toy fireworks comprising a plurality of fireworks connected via an ignition powder composed of a single explosive layer having a low speed (Claim 3).
[0010]
(4) In a toy fireworks in which one end of a plurality of fireworks is supported by a supporting means and the other end is connected by an ignition powder, the explosive layer is composed of an outer explosive layer and an inner explosive layer, and the outer explosive layer is an inner explosive layer. A toy fireworks characterized in that the burning speed is higher than that of the explosive layer, and the outer explosive layer and the inner explosive layer have substantially the same ignition temperature.
[0011]
[Action]
[Ignition of Claim 1]
When the ignition powder of claim 1 is ignited, the fire spreads all over the surface of the ignition powder along the outer explosive layer having a high combustion rate (see FIG. 1). That is, the entire surface of the ignition powder starts burning almost simultaneously. Thus, the inner explosive layer has the same ignition temperature as the outer explosive layer, so immediately after the entire surface of the explosive (the entire surface of the outer explosive layer) starts burning almost simultaneously, the entire inner explosive layer is exposed to the outer explosive layer. Combustion starts almost simultaneously with the combustion heat of the bed. In other words, the entire ignition powder starts burning almost immediately after ignition. Further, since the inner explosive layer has a low combustion rate, it has a heat storage effect (this is the same for the inner explosive layer of the ignition powder in claims 2 to 4). Therefore, the explosive part of the toy fireworks is efficiently and intensively heated by the combustion heat of the ignition powder, and ignites reliably.
[0012]
[Toy fireworks of claim 2]
In the toy fireworks of claim 2, when one end of the ignition powder is ignited, the fire spreads all over the surface of the ignition powder along the outer powder layer of the ignition powder having a high combustion speed. That is, the entire surface of the ignition powder starts burning almost simultaneously. Thus, the inner explosive layer has the same ignition temperature as the outer explosive layer, so immediately after the entire surface of the explosive (the entire surface of the outer explosive layer) starts burning almost simultaneously, the entire inner explosive layer is exposed to the outer explosive layer. Combustion starts almost simultaneously with the combustion heat of the bed. In other words, the entire ignition powder starts burning almost immediately after ignition. Therefore, a plurality of fireworks connected via the ignition powder start burning almost simultaneously. In this case, the explosive part of each firework is efficiently and intensively heated by the combustion heat of the igniting agent to ignite surely as in the case of claim 1.
[0013]
[Toy fireworks of claim 3]
In the toy fireworks of claim 3, when one end of the ignition powder is ignited, for the ignition powder composed of the outer powder layer and the inner powder layer, the fire is ignited along the outer powder layer of the ignition powder having a high combustion rate. It spreads all over the surface, and the entire surface of the igniter starts burning almost simultaneously. Thus, the inner explosive layer has the same ignition temperature as the outer explosive layer, so immediately after the entire surface of the explosive (the entire surface of the outer explosive layer) starts burning almost simultaneously, the entire inner explosive layer is exposed to the outer explosive layer. Combustion starts almost simultaneously with the combustion heat of the bed. In other words, the entire ignition powder starts burning almost immediately after ignition. Therefore, the fireworks connected to the ignition powder start burning immediately after the ignition powder is ignited. On the other hand, with respect to an ignition powder composed of a single explosive layer with a low combustion speed, the fire gradually burns, and eventually the fireworks connected to the ignition powder start to burn. Therefore, the timing of combustion of each firework can be adjusted by the combination of these two kinds of ignition agents, or the time until the first fireworks can be ignited after the ignition agents are ignited can be adjusted.
[0014]
[Toy fireworks of claim 4]
In the toy fireworks according to claim 4, when the ignition powder connecting the other ends of a plurality of fireworks is ignited, the fire moves all over the surface of the ignition powder along the outer powder layer of the ignition powder having a high combustion speed. To spread. That is, the entire surface of the ignition powder starts burning almost simultaneously. Thus, the inner explosive layer has the same ignition temperature as the outer explosive layer, so immediately after the entire surface of the explosive (the entire surface of the outer explosive layer) starts burning almost simultaneously, the entire inner explosive layer is exposed to the outer explosive layer. Combustion starts almost simultaneously with the combustion heat of the bed. In other words, the entire ignition powder starts burning almost immediately after ignition. Therefore, a plurality of fireworks connected via the ignition powder start burning almost simultaneously. In this case, the explosive part of each firework is efficiently and intensively heated by the combustion heat of the igniting agent to ignite surely as in the case of claim 1.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the accompanying drawings.
What is shown by the code | symbol 11 is the ignition agent in this invention. The gunpowder 11 is composed of an outer gunpowder layer 13 and an inner gunpowder layer 15, the outer gunpowder layer 13 has a faster burning rate than the inner gunpowder layer 15, and the outer gunpowder layer 13 and the inner gunpowder layer 15 have substantially the same ignition temperature. Like that. It is desirable that the amount of heat at the time of combustion is larger in the inner explosive layer 15 than in the outer explosive layer 13.
[0016]
The outer explosive layer 13 has a burning rate of about 200 mm / second and an ignition temperature of about 350 ° C. The composition of the outer explosive layer 13 is as follows as an example.
Potassium nitrate 39.8 parts by weight Barium nitrate 20.2 parts by weight Potassium perchlorate 6.1 parts by weight Sulfur 5.5 parts by weight Charcoal 14.4 parts by weight Starch paste 14.0 parts by weight
The inner explosive layer 15 has a burning rate of about 100 mm / second and an ignition temperature of about 350 ° C. The composition of the inner explosive layer 15 is as follows as an example.
Potassium nitrate 5.0 parts by weight Barium nitrate 38.1 parts by weight Potassium perchlorate 19.7 parts by weight Sulfur 5.3 parts by weight Charcoal 18.9 parts by weight Starch paste 13.0 parts by weight
In the example shown in FIG. 1, the ignition powder 11 is fixed to the tip of the explosive part 17 in the toy fireworks. In addition, what is shown with the code | symbol 19 in FIG. 1 is a candle as an ignition means.
[0019]
FIG. 3 shows an example of toy fireworks formed by connecting a plurality of fireworks 21, 21... Reference numeral 23 denotes a holding body for holding the fireworks 21, 21. The fireworks 21, 21... Connected through the ignition powder 11 may be any toy fireworks such as, for example, a snow ski, a sparkler, and a fireworks. Moreover, as shown in FIG. 4 as an example, the ignition powder 11 may be one in which an inner explosive layer 15 and an outer explosive layer 13 are fixed to a core material 25.
[0020]
FIG. 5 is a modification of FIG. 3, in which a plurality of fireworks 21, 21... Are connected via the ignition powder 11 and an ignition powder 27 composed of a single powder layer having a low combustion rate. An example of toy fireworks is shown. As shown in FIG. 6 as an example, the igniting agent 11 and the igniting agent 27 composed of a single explosive layer having a slow combustion rate are fixed to a core material 29. The ignition agent 27 has a combustion rate of about 80 mm / second and an ignition temperature of about 400 ° C. The composition of the ignition agent 27 is as follows as an example.
Potassium nitrate 5.0 parts by weight Barium nitrate 39.6 parts by weight Potassium perchlorate 18.4 parts by weight Calcium carbonate 4.9 parts by weight Charcoal 13.3 parts by weight Starch paste 18.8 parts by weight
FIG. 7 shows a toy firework in which one end of a plurality of fireworks 31, 31... Is supported by a support means 33 and the other end is connected by the ignition powder 11. The fireworks 31, 31... Connected via the ignition powder 11 may be any toy fireworks such as, for example, a snow ski, a sparkler, and a fireworks. In this case, when the ignition powder 11 is ignited, the fireworks 31, 31... Ignite all at once and open outward for combustion.
[0022]
FIG. 8 shows a toy firework in which one end of a plurality of fireworks 41, 41. The fireworks 41, 41,... Connected through the ignition powder 11 may be any toy fireworks such as, for example, a Japanese pampas grass, a sparkler, or a fireworks display.
[0023]
【The invention's effect】
[Ignition of Claim 1]
The explosive part in the toy fireworks using the ignition powder of claim 1 is efficiently and intensively heated by the combustion heat of the ignition powder, and ignites reliably.
[0024]
[Toy fireworks of claim 2]
In the toy fireworks of claim 2, a plurality of fireworks connected via the ignition powder start burning almost simultaneously. The pyrotechnic part of each firework is efficiently and intensively heated by the combustion heat of the ignition powder, and ignites reliably.
[0025]
[Toy fireworks of claim 3]
In the toy fireworks according to claim 3, the timing of combustion of each firework is adjusted by combining an ignition powder composed of an outer powder layer and an inner powder layer and an ignition powder composed of a single powder layer having a low combustion rate. Or, after the ignition powder is ignited, the time until the first fireworks are ignited can be adjusted.
[0026]
[Toy fireworks of claim 4]
In the toy fireworks according to claim 4, a plurality of fireworks connected via the ignition powder start burning almost simultaneously. The pyrotechnic part of each firework is efficiently and intensively heated by the combustion heat of the ignition powder, and ignites reliably.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an example of an ignition powder according to the present invention.
FIG. 2 is a cross-sectional view showing a conventional ignition agent.
FIG. 3 is a front view showing an example of toy fireworks using the ignition powder according to the present invention.
4 is an end view taken along line IV-IV in FIG. 3;
FIG. 5 is a front view showing another example of toy fireworks using the ignition powder according to the present invention.
6 is an end view taken along the line VI-VI in FIG. 5;
FIG. 7 is a front view showing still another example of toy fireworks using the ignition powder according to the present invention.
FIG. 8 is a front view showing still another example of toy fireworks using the ignition powder according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Explosive part 3 Ignite 3a One end 3b Center part 3c Other end 5 Candle 11 Ignite 13 Outer explosive layer 15 Inner explosive layer 17 Explosive part 19 Candle 21 Fireworks 23 Holder 25 Core material 27 Ignite 29 Core material 31 Fireworks 33 Support Mean 41 Fireworks

Claims (4)

外側火薬層と内側火薬層とよりなり、外側火薬層は内側火薬層よりも燃焼速度が速く且つ外側火薬層と内側火薬層とは着火温度がほぼ等しくなるようにしたことを特徴とする玩具花火における着火薬。  A toy fireworks comprising an outer explosive layer and an inner explosive layer, wherein the outer explosive layer has a faster burning rate than the inner explosive layer, and the outer explosive layer and the inner explosive layer have substantially the same ignition temperature. Ignition powder. 外側火薬層と内側火薬層とよりなり、外側火薬層は内側火薬層よりも燃焼速度が速く且つ外側火薬層と内側火薬層とは着火温度がほぼ等しくなるようにした着火薬を介して複数の花火を連結してなることを特徴とする玩具花火。The outer explosive layer and the inner explosive layer, the outer explosive layer has a burning rate faster than the inner explosive layer, and the outer explosive layer and the inner explosive layer are provided with a plurality of explosives via the explosives. Toy fireworks characterized by connecting fireworks. 外側火薬層と内側火薬層とよりなり、外側火薬層は内側火薬層よりも燃焼速度が速く且つ外側火薬層と内側火薬層とは着火温度がほぼ等しくなるようにした着火薬と燃焼速度が遅い単一の火薬層よりなる着火薬とを介して複数の花火を連結してなることを特徴とする玩具花火。Composed of an outer explosive layer and an inner explosive layer, the outer explosive layer has a higher burning rate than the inner explosive layer, and the outer explosive layer and the inner explosive layer have an ignition temperature that is substantially equal to the ignition explosive and has a slower burning rate. A toy fireworks comprising a combination of a plurality of fireworks via an ignition powder composed of a single powder layer. 複数本の花火の一端を支持手段に支持させ、他端を着火薬により連結してなる玩具花火において、該火薬層は外側火薬層と内側火薬層とよりなり、外側火薬層は内側火薬層よりも燃焼速度が速く且つ外側火薬層と内側火薬層とは着火温度がほぼ等しくなるようにしたことを特徴とする玩具花火。In a toy fireworks in which one end of a plurality of fireworks is supported by a support means and the other end is connected by an ignition powder, the explosive layer is composed of an outer explosive layer and an inner explosive layer, and the outer explosive layer is formed from an inner explosive layer. A toy firework characterized in that the burning speed is fast and the outer and inner explosive layers have substantially the same ignition temperature.
JP03559897A 1997-02-04 1997-02-04 Ignition powder in toy fireworks and toy fireworks using the same Expired - Fee Related JP3842860B2 (en)

Priority Applications (1)

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JP03559897A JP3842860B2 (en) 1997-02-04 1997-02-04 Ignition powder in toy fireworks and toy fireworks using the same

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Application Number Priority Date Filing Date Title
JP03559897A JP3842860B2 (en) 1997-02-04 1997-02-04 Ignition powder in toy fireworks and toy fireworks using the same

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JPH10220999A JPH10220999A (en) 1998-08-21
JP3842860B2 true JP3842860B2 (en) 2006-11-08

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