JP3637975B2

JP3637975B2 - How to arrange small powder

Info

Publication number: JP3637975B2
Application number: JP22086294A
Authority: JP
Inventors: 義之池田; 善之宗野
Original assignee: Nippon Kayaku Co Ltd
Current assignee: Nippon Kayaku Co Ltd
Priority date: 1993-09-21
Filing date: 1994-08-24
Publication date: 2005-04-13
Anticipated expiration: 2020-04-13
Also published as: JPH07139899A

Description

【０００１】
【産業上の利用分野】
本発明は花火の打上げ等に汎く使用される火薬用薬包及びそれに火薬を充填した火薬薬包に関するものである。
【０００２】
【従来の技術】
打上げ花火を単発で打ち上げる場合は、筒内で玉の下部に黒色小粒火薬（揚げ薬とも言う）を配置し、更に玉の上部に若干の黒色小粒火薬（以下小粒火薬と言う）をふり粉としてふりかけ、筒上部から落し火を落とす方法が取られていた。（平成４年４月１日発行「一般火薬学」（日本火薬工業会資料編集部発行）の１１７頁第４．３３図参照）しかし、この方法では、タイミングを誤ると、筒から飛び出す玉に手を弾かれて負傷したり、あるいは筒内又は筒上部で、玉が早期に開いた場合に、筒の側に人が居る為、人体に大きな被害を被ると言う危険性があった。
【０００３】
この為、より安全な作業方法と言う事で、図５及び図６に示す様に小粒火薬１０を袋３に入れ、袋３の上部から、長い脚線１３の付いた点火玉１２を小粒火薬１０に挿し込み、この袋３を筒１４の下部に配置し、遠隔地迄引いた脚線１３に電気的に点火する事により玉１５を上げる方法が考えられ、実施される様になっている。
【０００４】
この方法によると、筒の下部に火炎で加熱した焼金等を配置し、筒の上部から、筒のそばの人間が手によって、玉の下部に小粒火薬を入れた薬包を貼りつけた連発用玉を投入する連続打上げ方法も、遠隔地より連続的に電気で点火する事によって安全に実施できる事となっている。（上述の文献１１７頁第４．３４図参照）
【０００５】
【発明が解決しようとする課題】
小粒火薬を袋に入れ、これに脚線付の点火玉を挿し込み遠隔地より小粒火薬に点火する方法は、落し火を筒内に落とす方法より、極めて安全性が高い。しかし、打上げを行う現場で、時によっては、数千本の打上げ筒について、小粒火薬をひとつひとつ秤量し、点火玉を挿し込み、封をする事は、極めて煩雑であり、かつ多くの人手を要し、更には秤量ミス等の人為ミスが起こり易くなってしまう。又予め、小粒火薬を秤り込んで封をした袋を打ち上げ現場に持ち込み、そこで封を開け点火玉を挿し込む方法もあるが、この方法にしても、現場で秤量するよりは煩雑性は少ないが、やはり、封を開け、点火玉を挿し込み、又封をするという３段階の作業を要し、打上げ発数が多いとその煩雑性、非効率性は重大な問題である。打上げ現場でのこれらの煩雑性を避ける為に、予め小粒火薬を袋に秤り込み、これに点火玉を挿し込み、封をして、打上げ現場に持ち込む方法もあるが、この方法は打上げ現場での煩雑性は確かに抑えられるが、点火玉と小粒火薬が袋内で接触する状態で運搬されるという極めて危険な状態を長時間取る事になり、安全上由々しき問題を生じる事となる。
【０００６】
この為、落し火を使わない、安全な方法で、かつ、打上げ現場で容易に点火玉をとりつけれる手段が求められていた。
【０００７】
【課題を解決するための手段】
本発明者等は、上述の状況を充分考察し、鋭意研究の結果、安全にかつ打上げ現場で容易、迅速に点火玉を装着する事が出来、前記問題を解決できる火薬用薬包を見い出し本発明に至った。
【０００８】
即ち、本発明は、
（１）側面に１ないし複数個の孔又はスリットが予め穿たれ、かつ容易にとりはずせる蓋でその孔又はスリットが塞がれた火薬用薬包
（２）前項（１）記載の火薬用薬包に火薬を充填したことを特徴とする火薬薬包に関するものである。
【０００９】
以下、本発明を詳細に説明する。
本発明者等は、側面に１ないし複数個の孔又はスリットを予め穿ちかつ容易に取りはずせる蓋でこの孔又はスリットを塞いだ火薬用薬包に、予め所定量の小粒火薬を秤り込み、袋の上部を、ゴム輪、ひも、針金、あるいは袋についたチャック等で蓋をして火薬薬包としておき、この火薬薬包を打上げ現場に運んだ後、打上げ現場で火薬薬包側面部の蓋をはずし、ここから点火玉を挿し込んだ後、孔又はスリットの部分を又蓋でおおう事により、極めて安全な方法で、かつ迅速に、小粒火薬を打上げ筒に配置できる事を見い出したものである。
【００１０】
本発明に用いられる火薬用薬包の材質としては、ポリエチレン，ポリプロピレン，ナイロン等の合成樹脂又は紙、あるいはこれらを組み合わせた材質を使用することができる。
【００１１】
合成樹脂材質を使用する場合、これらを適当に処理して、帯電防止性とすれば、更に好ましい。
【００１２】
本発明に用いられる火薬用薬包は、厚み大きさ及び形状に特に制限はないが、打上げ筒に納まり、しかも小粒火薬が燃焼した時に発生するガスが、筒内に速やかに拡散する厚み，大きさのものが望ましい。又、打上げ玉の号数に応じて袋の色を変えておいたり、袋に異なる色のテープを貼って見分け易くする事もできる。
【００１３】
本発明の火薬用薬包に穿たれる孔又はスリットは、１個でも良いが、万全を期す為複数個の点火玉を取り付ける場合も考慮して、複数個でも良い。
本発明の火薬用薬包に設けられる孔は、要するに点火玉を挿し込む事が出来る形状、大きさであれば良く、通常、円形、楕円形、四角形、菱形、星型などの形状が使用出来、また、その大きさは、孔の最短部のさしわたしの長さが、１〜３０ｍｍ程度が好ましく、３〜１０ｍｍの大きさがより好ましい。
本発明の火薬用薬包に設けられるスリットは、点火玉を挿し込むことが出来る形状、大きさであればよく、通常、縦、横、斜めのいずれか、一直線あるいは十字等の形状が使用出来、また、そのスリットの長さは、１〜３０ｍｍ程度が好ましく、３〜１５ｍｍの長さがより好ましい。
又孔又はスリットは穿ったそのままでも良いが、袋が薄い場合には、蓋をはずした時に破れないようにする目的で、あるいは孔又はスリットの位置を明確にする為、テ−プ、シ−トなどで孔又はスリットの周囲を補強したり、あるいは周囲の色を変えておく事が望ましい。
【００１４】
本発明に用いられる袋に穿たれた孔又はスリットの上にされる蓋は、容易に取りはずせる蓋ならどの様な蓋でも良いが、袋材質にある程度の強度で粘着するが、人間の手によって引っ張ると、容易にはがれる合成樹脂，紙，あるいはこれを組み合わせた材質による粘着性テープを用いる事が好ましい。粘着性テープの孔に当たる部分を、袋の内部と接着しない様に非粘着性の材質で処置しておく事がより望ましい。
【００１５】
本発明に用いられる袋の上部に於ける封は、輪ゴム、糸、ひも、針金、あるいは袋についたチャック等袋を封する材質ならどのようなものでも使われる。
【００１６】
本発明の火薬用薬包に入れられる火薬は、点火玉で点火される火薬ならいかなる火薬でも良いが、打上げ花火の場合には、小粒火薬，玩具火薬，黒色粉火薬あるいはこれらの混合物が挙げられる。
本発明の火薬薬包では、空間が多すぎると火薬が偏り、点火玉と火薬が接触しにくくなる為、火薬が袋全体の容積の３０容量％以上入っているのが好ましく、７０〜９８容量％入っているのがより好ましい。
【００１７】
本発明の火薬薬包は、打上げ花火を遠隔地からの点火を可能にし、しかも打上げ現場で点火玉を容易に装着でき、その安全性，利便性に極めて優れている。更に言えば、本発明の本質が簡易に開孔できる様工夫した袋に火薬を入れ封をしておき、使用現場で迅速，容易に点火玉をこの火薬薬包に挿し込める事である為、打上げ花火以外の火薬用途にも、広く使用する事が可能である。
【００１８】
【実施例】
本発明を図面に示す実施例に従って、さらに詳しく説明するがこれらの実施例のみに限定されるものではない。
【００１９】
実施例１
図１に示すように、厚さ０．０７mm，幅１００mm，長さ２００mmの封筒状クラフト紙袋２の、表側の側面に、袋の下部から８０mmの所に直径５mmの孔４を穿った。この孔４の上に、タテ、ヨコ１５mmの３Ｍ社製ポストイット６（一旦貼った後、容易にはがせるテープ）を貼り、蓋とし、本願発明の火薬用薬包を得た。この薬包に約２２ｇの黒色小粒火薬１０を秤り込み、袋の上部を輪ゴム１で封をし、本願発明の火薬薬包を得た。
【００２０】
実施例２
図２に示すように、厚さ０．０５mm，幅１００mm，長さ２００mmの封筒状ポリエチレン袋３の、表側面に、袋の下部から１００mmの所に直径７mmの孔４を穿った。この孔４の周囲は内径７mm，外径１７mmのリング状の紙テープ８を貼り補強した。この孔の上にタテ，ヨコ２０mmで、丁度孔に当たる部分に径１５mmの紙テープを袋の内側に向けて貼りつけ、更にテープの端部をはがし易い様に幅１．５mm分だけ粘着部分同士を貼りあわせた合成樹脂粘着テープ７をはって蓋とし、本願発明の火薬用薬包を得た。この薬包に約２２ｇの黒色小粒火薬１０を秤り込み、袋の上部を輪ゴム１で封をし、本願発明の火薬薬包を得た。
【００２１】
実施例３
図３に示すように、厚さ０．０５mm，幅１００mm，長さ２００mmの封筒状ポリエチレン袋３の、表側面に、袋の下部から１００mmの所に長さ１０mmのスリット５を切った。このスリットの周囲は内径１０mm，外径１７mmのリング状の紙テープ８を貼り補強した。この孔の上にタテ、ヨコ２０mmで、更にテープの端部をはがし易い様に幅１．５mm分だけ粘着部分同士を貼りあわせた合成樹脂テープ７をはって蓋とし、本願発明の火薬用薬包を得た。この薬包に約２２ｇの黒色小粒火薬１０を秤り込み、袋の上部を輪ゴム１で封をし、本願発明の火薬薬包を得た。
【００２２】
実施例４
図４に示すように、厚さ０．０５mm，幅１５０mm，長さ２００mmのチャック付封筒状ポリエチレン袋３の、表側面に、袋の下部から１５０mmの所に長さ１０mmのスリット５を横方向に切った。このスリットの周囲は内径１０mm，外径１７mmのリング状の紙テープ８を貼り補強した。この孔の上にタテ、ヨコ２０mmで、端部をはがし易い様に３mm分だけ三角状に粘着部分同士を貼りあわせた合成樹脂テープ７を貼って蓋とし本願発明の火薬用薬包を得た。この薬包に約２５ｇの黒色小粒火薬１０を秤り込み、袋の上部をチャック１１で封をし本願発明の火薬薬包を得た。
【００２３】
比較例１
厚さ０．０５mm，幅１００mm，長さ２００mmの封筒状ポリエチレン袋に約２２ｇの黒色小粒火薬を秤り込み、袋の上部を輪ゴムで封をした。
【００２４】
実施例１，２，３，４及び比較例１の火薬薬包を打上げ現場に運搬し、実際に点火玉を取り付け３号玉用の筒に玉を配置する作業を行い、１人で、１０分間に何本の筒をセットできるかを調べた。結果を表１に示す。
【００２５】
【表１】

【００２６】
実施例１，２，３，４と比較例１の１０分間にセットできた筒の数を較べると、実施例の方が容易，迅速に筒のセットが出来た事が明白である。
【００２７】
【発明の効果】
本発明による火薬薬包を用いると、打上げ花火を遠隔地より点火できる様になり、かつ現場で容易・迅速に点火玉を装着できる。この為、打上げ花火の安全性・利便性を飛躍的に高める。
【図面の簡単な説明】
【図１】本発明の火薬薬包の１例で、実施例１の説明図である。
【図２】本発明の火薬薬包の１例で、実施例２の説明図である。
【図３】本発明の火薬薬包の１例で、実施例３の説明図である。
【図４】本発明の火薬薬包の１例で、実施例４の説明図である。
【図５】従来の方法による火薬薬包と、薬包に点火玉を挿し込んだところを示す説明図である。
【図６】従来の方法による火薬薬包を用い、点火玉を挿入した薬包を打上げ筒の中に配し、玉をその上部に配した打上げ直前の筒の説明図である。
【符号の説明】
１．輪ゴム
２．紙袋
３．ポリエチレン袋
４．孔
５．スリット
６．ポストイット（一旦貼った後、容易にはがせるテ−プ）
７．粘着テープ
８．補強紙テープ
９．折り返し
１０．黒色小粒火薬
１１．チャック
１２．点火玉
１３．脚線
１４．筒
１５．玉[0001]
[Industrial application fields]
The present invention relates to a gunpowder pack generally used for launching fireworks and the like, and a gunpowder pack filled with gunpowder.
[0002]
[Prior art]
When launching fireworks in a single shot, place a small black powder (also called fried powder) at the bottom of the ball in the cylinder, and sprinkle some black small powder (hereinafter referred to as a small powder) on the top of the ball as dust. The method of dropping the fire from the top of the tube was taken. (Refer to Fig. 4.33 on page 117 of "General pyropharmaceutical" issued on April 1, 1992 (published by the Japan Explosives Association Material Editorial Department)) However, with this method, if the timing is incorrect, the ball pops out of the cylinder. There is a risk that a person may be injured by flipping his hand, or if the ball is opened early in the cylinder or at the top of the cylinder, there is a person on the side of the cylinder, which causes serious damage to the human body.
[0003]
Therefore, as a safer working method, as shown in FIGS. 5 and 6, the small explosive 10 is put in the bag 3, and the ignition ball 12 with the long leg 13 is put on the small explosive from the top of the bag 3. 10, the bag 3 is placed at the bottom of the cylinder 14, and a method of raising the ball 15 by electrically igniting the leg 13 drawn to a remote place is conceived and implemented. .
[0004]
According to this method, a flame heated by a flame is placed at the bottom of the cylinder, and a human being by the side of the cylinder from the top of the cylinder manually attaches a medicine package containing small powder to the bottom of the ball. The continuous launching method for throwing balls is also safe to implement by continuously igniting electricity from a remote location. (Refer to the above-mentioned document, page 117, Fig. 4.34)
[0005]
[Problems to be solved by the invention]
The method of putting a small powder in a bag and inserting an ignition ball with a leg into it to ignite the small powder from a remote location is much safer than the method of dropping a smoldering fire into the cylinder. However, at the launch site, sometimes it is extremely cumbersome and requires a lot of manpower to weigh small particles of gunpowder one by one, insert an ignition ball, and seal it for thousands of launch tubes. In addition, human errors such as weighing errors are likely to occur. There is also a method of weighing a small explosive in advance and bringing a sealed bag to the site, opening the seal there and inserting an ignition ball, but this method is less complicated than weighing on site. However, it still requires three steps of opening the seal, inserting the ignition ball, and sealing, and when the number of launches is large, the complexity and inefficiency are serious problems. In order to avoid these complications at the launch site, there is also a method in which small explosives are pre-weighed in a bag, an ignition ball is inserted into this bag, sealed, and brought to the launch site. However, it will take a very dangerous state that the ignition ball and small powder are transported in contact with each other in the bag for a long time, and cause a serious problem for safety. Become.
[0006]
For this reason, there has been a demand for a safe method that does not use a bonfire, and a means for easily attaching an ignition ball at the launch site.
[0007]
[Means for Solving the Problems]
The inventors have fully considered the above situation, and as a result of diligent research, they have found a gunpowder pack that can be safely and easily mounted on the launch site quickly and can solve the above problems. Invented.
[0008]
That is, the present invention
(1) A gunpowder pack in which one or more holes or slits are pre-pierced on the side surface and the holes or slits are closed with a lid that can be easily removed. (2) The gunpowder pack according to (1) above The present invention relates to a gunpowder pack characterized by filling gunpowder with gunpowder.
[0009]
Hereinafter, the present invention will be described in detail.
The present inventors weighed a predetermined amount of small explosives in advance in a gunpowder pack in which one or more holes or slits were previously drilled on the side and the holes or slits were closed with a lid that could be easily removed. Cover the upper part of the bag with a rubber ring, string, wire, or chuck attached to the bag to make a gunpowder pack. After carrying this gunpowder bag to the launch site, After removing the lid and inserting the ignition ball from here, it was found that a small explosive can be quickly placed on the launch tube in a very safe manner by covering the hole or slit with the lid. It is.
[0010]
As a material for the explosive sachet used in the present invention, synthetic resin such as polyethylene, polypropylene and nylon, paper, or a combination of these materials can be used.
[0011]
In the case of using a synthetic resin material, it is more preferable that these are appropriately treated to obtain antistatic properties.
[0012]
The explosive pack for use in the present invention is not particularly limited in thickness and shape, but the thickness and size are such that the gas generated when the small explosive is burned is quickly diffused into the cylinder, while being contained in the launch cylinder. That is desirable. In addition, the color of the bag can be changed according to the number of launch balls, or a different color tape can be attached to the bag for easy identification.
[0013]
One hole or slit may be formed in the gunpowder pack of the present invention, but a plurality of holes or slits may be used in consideration of a case where a plurality of ignition balls are attached for completeness.
The hole provided in the gunpowder pack of the present invention may be of any shape and size that can be used to insert an ignition ball, and usually a shape such as a circle, an ellipse, a rectangle, a diamond, or a star can be used. The length of the shortest part of the hole is preferably about 1 to 30 mm, more preferably 3 to 10 mm.
The slit provided in the gunpowder pack of the present invention may be any shape and size that allows the ignition ball to be inserted. Usually, any of vertical, horizontal, diagonal, straight or cross shape can be used. Further, the length of the slit is preferably about 1 to 30 mm, and more preferably 3 to 15 mm.
The holes or slits may be left as they are, but if the bag is thin, the tape or sheet may be used for the purpose of preventing tearing when the lid is removed or for clarifying the position of the holes or slits. It is desirable to reinforce the periphery of the hole or slit, or change the color of the periphery.
[0014]
The lid used on the bag or the slit used in the present invention may be any lid as long as it can be easily removed, but it adheres to the bag material with a certain degree of strength. It is preferable to use an adhesive tape made of a synthetic resin, paper, or a combination of these that easily peels when pulled. It is more desirable to treat the portion of the adhesive tape that touches the hole with a non-adhesive material so that it does not adhere to the inside of the bag.
[0015]
Any material that seals the bag, such as a rubber band, thread, string, wire, or chuck attached to the bag, can be used for sealing at the top of the bag used in the present invention.
[0016]
The gunpowder put in the gunpowder pack of the present invention may be any gunpowder that is ignited by an ignition ball, but in the case of fireworks, small powder, toy gunpowder, black powder, or a mixture thereof may be mentioned.
In the gunpowder pack of the present invention, if there is too much space, the gunpowder will be biased and it will be difficult for the ignition ball and gunpowder to come into contact with each other. % Is more preferable.
[0017]
The explosive pack of the present invention enables the fireworks to be ignited from a remote location, and the ignition ball can be easily mounted at the launch site, and is extremely excellent in safety and convenience. Furthermore, because the essence of the present invention is to put a gunpowder in a bag designed so that it can be easily opened, and to quickly and easily insert an ignition ball into this gunpowder bag at the site of use. It can be widely used for explosives other than fireworks.
[0018]
【Example】
The present invention will be described in more detail with reference to embodiments shown in the drawings, but is not limited to these embodiments.
[0019]
Example 1
As shown in FIG. 1, a hole 4 having a diameter of 5 mm was formed in the front side surface of an envelope-shaped kraft paper bag 2 having a thickness of 0.07 mm, a width of 100 mm, and a length of 200 mm at a location 80 mm from the bottom of the bag. On this hole 4, a post-it 6 made of 3M having a length and width of 15 mm (tape that can be easily peeled off after being pasted once) was pasted and used as a lid to obtain a gunpowder pack of the present invention. About 22 g of the black small powder gunpowder 10 was weighed in this medicine bag, and the upper part of the bag was sealed with the rubber band 1 to obtain the gunpowder bag of the present invention.
[0020]
Example 2
As shown in FIG. 2, a hole 4 having a diameter of 7 mm was formed on the front side of an envelope-like polyethylene bag 3 having a thickness of 0.05 mm, a width of 100 mm, and a length of 200 mm at a position 100 mm from the lower part of the bag. A ring-shaped paper tape 8 having an inner diameter of 7 mm and an outer diameter of 17 mm was attached around the hole 4 for reinforcement. Attach the paper tape with a diameter of 15mm to the inside of the bag with a vertical and horizontal width of 20mm above this hole, and then stick the adhesive parts by a width of 1.5mm to make it easier to peel off the end of the tape. The bonded synthetic resin adhesive tape 7 was used as a lid to obtain a gunpowder pack of the present invention. About 22 g of the black small powder gunpowder 10 was weighed in this medicine bag, and the upper part of the bag was sealed with the rubber band 1 to obtain the gunpowder bag of the present invention.
[0021]
Example 3
As shown in FIG. 3, a slit 5 having a length of 10 mm was cut on the front side of an envelope-like polyethylene bag 3 having a thickness of 0.05 mm, a width of 100 mm, and a length of 200 mm at a position 100 mm from the bottom of the bag. A ring-shaped paper tape 8 having an inner diameter of 10 mm and an outer diameter of 17 mm was reinforced around the slit. A synthetic resin tape 7 having a length of 20 mm, a width of 20 mm, and an adhesive portion of 1.5 mm in width so that the end of the tape can be easily peeled off is used as a lid. I got a medicine package. About 22 g of the black small powder gunpowder 10 was weighed in this medicine bag, and the upper part of the bag was sealed with the rubber band 1 to obtain the gunpowder bag of the present invention.
[0022]
Example 4
As shown in FIG. 4, a slit 5 having a length of 10 mm is formed in the lateral direction on the front side of the enveloped polyethylene bag 3 having a thickness of 0.05 mm, a width of 150 mm, and a length of 200 mm, 150 mm from the bottom of the bag. I cut it. A ring-shaped paper tape 8 having an inner diameter of 10 mm and an outer diameter of 17 mm was reinforced around the slit. A synthetic resin tape 7 having a length of 20 mm, a width of 20 mm, and an adhesive portion of 3 mm in a triangular shape so that the end portion can be easily peeled off is pasted to obtain a lid for the explosive medicine package of the present invention. . About 25 g of the black small powder gunpowder 10 was weighed in this medicine bag, and the upper part of the bag was sealed with the chuck 11 to obtain a gunpowder bag of the present invention.
[0023]
Comparative Example 1
About 22 g of black small powder was weighed into an envelope-like polyethylene bag having a thickness of 0.05 mm, a width of 100 mm, and a length of 200 mm, and the upper part of the bag was sealed with a rubber band.
[0024]
The gunpowder packs of Examples 1, 2, 3, 4 and Comparative Example 1 were launched and transported to the launch site, the work of actually attaching the ignition balls and placing the balls in the No. 3 cylinder was performed by one person and 10 We investigated how many tubes can be set per minute. The results are shown in Table 1.
[0025]
[Table 1]

[0026]
Comparing the number of cylinders that could be set for 10 minutes in Examples 1, 2, 3, and 4 and Comparative Example 1, it is clear that the cylinders were easily and quickly set in Example.
[0027]
【The invention's effect】
When the explosive pack according to the present invention is used, it becomes possible to ignite the fireworks from a remote place, and it is possible to easily and quickly install the ignition ball on the site. For this reason, the safety and convenience of fireworks will be dramatically improved.
[Brief description of the drawings]
FIG. 1 is an explanatory view of Example 1 as an example of an explosive pack of the present invention.
FIG. 2 is an explanatory view of Example 2 as an example of the explosive pack of the present invention.
FIG. 3 is an explanatory view of Example 3 as an example of the explosive pack of the present invention.
FIG. 4 is an explanatory view of Example 4 as an example of the explosive pack of the present invention.
FIG. 5 is an explanatory view showing a gunpowder pack according to a conventional method and a place where an ignition ball is inserted into the pack.
FIG. 6 is an explanatory view of a cylinder just before launching in which a gunpowder pack according to a conventional method is used, a medicine pack in which an ignition ball is inserted is arranged in a launching cylinder, and a ball is arranged on the upper part thereof.
[Explanation of symbols]
1. 1. Rubber band 2. Paper bag 3. Polyethylene bag Hole 5. Slit 6. Post-it (tape that can be easily peeled off after pasting)
7). Adhesive tape8. Reinforcing paper tape9. Return 10. Black small powder powder11. Chuck 12. Ignition ball 13. Leg wire 14. Tube 15. ball

Claims

One or more holes or slits are made in advance on the side and a small amount of small explosives are weighed in advance into a powder pack containing the holes or slits closed with a lid that can be easily removed. Cover it with a ring, string, wire, or chuck attached to the bag, and store it as a gunpowder pack. After carrying this gunpowder bag to the launch site, remove the lid on the side of the gunpowder bag from the launch site. After inserting the ignition ball, a method of placing a small explosive, which is characterized by covering the hole or slit with a lid, on the launch tube.