JP6707965B2 - Ammunition container - Google Patents

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JP6707965B2
JP6707965B2 JP2016080755A JP2016080755A JP6707965B2 JP 6707965 B2 JP6707965 B2 JP 6707965B2 JP 2016080755 A JP2016080755 A JP 2016080755A JP 2016080755 A JP2016080755 A JP 2016080755A JP 6707965 B2 JP6707965 B2 JP 6707965B2
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container body
ammunition
container
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opening
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中村 雄一
雄一 中村
純也 松川
純也 松川
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NOF Corp
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Description

本発明は、例えばりゅう弾砲用発射装薬や火砲用弾薬の梱包容器などとして利用される円筒状の弾薬用容器に関する。 The present invention relates to a cylindrical container for ammunition, which is used as, for example, a projectile charge for a shell and a packaging container for ammunition for gun.

りゅう弾砲用発射装薬等に使用される弾薬用容器とは、細かい粒状の発射薬を装填した複数個の発射装薬を梱包して、運搬したり弾薬庫に保管する際に一時的に使用する金属容器のことである。発射装薬をりゅう弾砲等の薬室に挿入する際には、弾薬用容器は取り除かれる。一般に、りゅう弾砲用発射装薬や火砲用弾薬等に使用される梱包容器としての弾薬用容器は、運用面を配慮して一定以上の落下強度と気密性を有する構造となっている。 The ammunition container used for projectile charge for rifle ammunition, etc. is a temporary charge when packing multiple propellant charges loaded with fine granular propellant and transporting or storing them in the ammunition storage. It is a metal container used. The ammunition container is removed when the propellant charge is inserted into the chamber of the shell. Generally, an ammunition container as a packaging container used for a projectile charge for a shell and an ammunition for an artillery has a structure having drop strength and airtightness above a certain level in consideration of operation.

近年、りゅう弾砲用発射薬や火砲用弾薬は、平和貢献活動に基づく海外への派遣活動を理由に保管及び運用時における良好な取り扱い性が求められるようになってきている。火砲用弾薬や発射薬の取り扱い評価方法として、米国のITOP(International Test Operations Procedure)で試験方法が規格化されている。この規格の中で運用面での取り扱い性を評価する試験項目としては、落下試験や振動試験が規定されている。このような規定を満たすために、りゅう弾砲用発射装薬や火砲用弾薬用の弾薬用容器には強固な落下強度と高い気密性が要求されている。 In recent years, propellants for gun shells and ammunition for guns have been required to have good handleability during storage and operation due to overseas dispatch activities based on peace contribution activities. As a method for handling and evaluating ammunition for firearms and propellant, the test method is standardized by ITOP (International Test Operations Procedure) in the United States. In this standard, drop tests and vibration tests are stipulated as test items for evaluating the handling in operation. In order to meet such regulations, a strong drop strength and a high airtightness are required for the projectile charge for the shell and the ammunition container for the gun ammunition.

ところが、従来の弾薬用容器では、容器内部に収容された弾薬や発射装薬を構成する火薬類が発火した場合、高い気密性を有する弾薬用容器内において火薬類の燃焼反応が生じるので、弾薬用容器自体が弾薬のように爆発してしまい、周囲の人員や機材などに多大な被害や損失を与える事態が発生する。 However, in the conventional ammunition container, when the ammunition contained in the container or the explosives composing the propellant charge is ignited, the combustion reaction of the explosives occurs in the ammunition container having high airtightness, so the ammunition The container itself explodes like ammunition, causing a great deal of damage and loss to surrounding personnel and equipment.

また、弾薬用容器に開口孔を設け、銃弾や燃焼時に弾薬容器内の弾薬が発火しても開口部が大きく開口し、内部圧力を逃がすことで、爆発するのを防ぐ弾薬用容器も提案されている。しかし、弾頭の破片のような高速破片が衝突した場合には、火薬類の燃焼が促進されて開口部が大きく開くよりも先に内圧が高くなり、弾薬容器自体が爆発してしまう。 There is also proposed an ammunition container that has an opening hole in the ammunition container so that even if the ammunition in the ammunition container is ignited by a bullet or a fire, the opening part opens large and the internal pressure is released to prevent it from exploding. ing. However, when a high-speed fragment such as a fragment of a warhead collides, the internal pressure becomes higher before the combustion of explosives is promoted and the opening is greatly opened, and the ammunition container itself explodes.

そこで、一定の落下強度を保持しながらも弾薬の燃焼反応を緩和することで、周囲の被害を抑制できる弾薬用容器として、特許文献1がある。具体的には、有底円筒状の容器本体と、前記容器本体の円筒部には螺旋状の接合部を有し、前記容器本体の開口を塞ぐ蓋体とを有する弾薬用容器であって、容器本体の円筒部に、軸方向に延びる1本線からなるスリットが形成されている。当該スリットは複数箇所に設けてもよいとされており、円筒部の長さLに対するスリットの長さxの和(Σx)の比率(Σx/L)が0.25〜3.0であり、円筒部の外径Dに対するスリットの幅yの比率(y/D)が0.001〜0.05となるように設計されている。 Therefore, there is Patent Document 1 as an ammunition container that can suppress damage to the surroundings by relaxing the combustion reaction of the ammunition while maintaining a constant drop strength. Specifically, a container for ammunition having a bottomed cylindrical container body, and a cylindrical body of the container body having a spiral joint, and a lid for closing the opening of the container body, A slit made of a single line extending in the axial direction is formed in the cylindrical portion of the container body. It is said that the slit may be provided at a plurality of locations, and the ratio (Σx/L) of the sum (Σx) of the length x of the slit to the length L of the cylindrical portion is 0.25 to 3.0, The ratio (y/D) of the width y of the slit to the outer diameter D of the cylindrical portion is designed to be 0.001 to 0.05.

また、特許文献2には、有底円筒状の容器本体と、容器本体の開口を塞ぐ蓋体とを有する弾薬用容器であって、前記容器本体の円筒部に、所定形状及び所定長さの長孔が所定隙間をもって内外貫通状に穿設され、前記長孔は所定長さの接合部と交互に並び少なくとも1つのスティッチ状脆弱部として軸方向に延びており、そして、軸方向に延びるスティッチ状脆弱部内の全長孔の隙間に、封止手段を設けることで、容器が封止されている弾薬用容器が開示されている。 Further, Patent Document 2 discloses an ammunition container having a bottomed cylindrical container body and a lid for closing an opening of the container body, the ammunition container having a predetermined shape and a predetermined length in a cylindrical portion of the container body. A long hole is bored through the inside and outside with a predetermined gap, and the long hole is alternately arranged with a joint portion of a predetermined length and extends axially as at least one stitch-like weak portion, and a stitch extending in the axial direction. There is disclosed an ammunition container in which the container is sealed by providing a sealing means in the gap between the full-length holes in the fragile portion.

特開2012−117741号公報JP 2012-117741 A 特開2015−227764号公報JP, 2005-227764, A

しかしながら、特許文献1及び特許文献2では容器本体の円筒部が螺旋状の接合部を有する鋼管、すなわちスパイラル鋼管であるため、スパイラル鋼管の厚みは鋼帯を引き出しながら螺旋状に整形する製法の関係故に厚みの上限が低く、連続した直線状の溶接部を有する電縫鋼管、板巻き鋼管、または継ぎ目無し鋼管と比べて薄い。具体的には、鋼管の外径をD0、鋼管の厚みをD1とした場合、スパイラル鋼管ではD1/D0が最大で0.014に対し、電縫鋼管ではD1/D0が最大で0.075である。容器本体としてスパイラル鋼管を用いた弾薬用容器では、弾頭の破片のような高速破片が衝突して弾薬用容器内の弾薬や発射装薬が発火した場合に生じる急激な内部圧力に対して機械的強度が不十分である場合があり、スパイラル鋼管が細かく破片化して高速度で飛散することによって周囲の人員や機材などに多大な被害や損失を与える恐れがある。 However, in Patent Document 1 and Patent Document 2, since the cylindrical portion of the container body is a steel pipe having a spiral joint, that is, a spiral steel pipe, the thickness of the spiral steel pipe is related to the manufacturing method in which the steel strip is drawn into a spiral shape. Therefore, the upper limit of the thickness is low, and it is thinner than the electric resistance welded steel pipe, the plate-wound steel pipe, or the seamless steel pipe having a continuous linear weld portion. Specifically, when the outer diameter of the steel pipe is D0 and the thickness of the steel pipe is D1, the maximum D1/D0 of the spiral steel pipe is 0.014, while the maximum D1/D0 of the electric resistance welded steel pipe is 0.075. is there. In a container for ammunition that uses a spiral steel tube as the container body, a mechanical force is applied to the rapid internal pressure generated when high-speed debris such as warhead debris collides and the ammunition or propellant charge in the container for ammunition ignites. The strength may be insufficient, and the spiral steel pipe may be broken into small pieces and scattered at high speed, which may cause great damage and loss to surrounding personnel and equipment.

そこで、本発明は上記課題を解決するものであって、通常時における落下強度をより確実に担保しながら、容器内部において火薬類が発火した際の安全性も担保できる弾薬用容器を提供することを目的とする。 Therefore, the present invention is to solve the above problems, and to provide a container for ammunition that can ensure the safety when explosives are ignited inside the container while more reliably ensuring the drop strength in normal times. With the goal.

上記の目的を達成するために、第1の発明の弾薬用容器は、有底筒状の容器本体と、該容器本体の開口を塞ぐ蓋体とを有し、前記容器本体の円筒部に、複数個の開口孔が軸方向に延びる貫通した同一直線上に並んだミシン目状のスリットを有する弾薬用容器であって、前記容器本体の円筒部は軸方向に連続した溶接部を有する鋼管であり、前記容器本体の外径をD0、前記容器本体の厚みをD1としたとき、0.015≦D1/D0≦0.031の関係を満たし、前記容器本体の長さをL0、前記スリットの長さをL1、各開口孔間の非開口部の長さをA1としたとき、0.60≦L1/L0≦0.95、0.04≦A1の和/L1≦0.30の関係を満たすことを特徴とする。 In order to achieve the above-mentioned object, the container for ammunition of the first invention has a bottomed cylindrical container body and a lid for closing the opening of the container body, and a cylindrical portion of the container body, A ammunition container having a plurality of perforated slits arranged in the same straight line extending in the axial direction, wherein the cylindrical portion of the container body is a steel pipe having a welded portion continuous in the axial direction. When the outer diameter of the container body is D0 and the thickness of the container body is D1, the relationship of 0.015≦D1/D0≦0.031 is satisfied, the length of the container body is L0, and the slit When L1 is the length and A1 is the length of the non-opening portion between the opening holes, the relationship of 0.60≦L1/L0≦0.95, 0.04≦A1/L1≦0.30 It is characterized by satisfying.

第2の発明の弾薬用容器は、有底筒状の容器本体と、該容器本体の開口を塞ぐ蓋体とを有し、前記容器本体の円筒部に、複数個の開口孔が軸方向に延びる貫通した同一直線上に並んだミシン目状のスリットを有する弾薬用容器であって、前記容器本体の円筒部は継ぎ目無し鋼管であり、前記容器本体の外径をD0、前記容器本体の厚みをD1としたとき、0.015≦D1/D0≦0.031の関係を満たし、前記容器本体の長さをL0、前記スリットの長さをL1、各開口孔間の非開口部の長さをA1としたとき、0.60≦L1/L0≦0.95、0.04≦A1の和/L1≦0.30の関係を満たすことを特徴とする。 The container for ammunition of the second invention has a bottomed cylindrical container body and a lid for closing the opening of the container body, and a plurality of opening holes are axially formed in the cylindrical portion of the container body. An ammunition container having perforated slits extending in the same straight line and penetrating therethrough, wherein the cylindrical portion of the container body is a seamless steel pipe, the outer diameter of the container body is D0, and the thickness of the container body is Is defined as D1, the relationship of 0.015≦D1/D0≦0.031 is satisfied, the length of the container body is L0, the length of the slit is L1, and the length of the non-opening portion between the opening holes is Is defined as A1, the relationship of 0.60≦L1/L0≦0.95 and 0.04≦A1/L1≦0.30 is satisfied.

本発明の弾薬用容器によれば、容器本体の外径(D0)に対する容器本体の厚み(D1)の比を0.015≦D1/D0≦0.031に設定していることで、火薬類が発火した非常時に容器本体が破片化することを避けられ、発火時安全性を担保することができる。更に容器本体の長さ(L0)に対するスリットの長さ(L1)の比と、スリットの長さ(L1)に対する非開口部のトータル長さ(ΣA1)の比を所定の範囲に設計していることで、通常時における落下強度および気密性をより確実に担保しながら、容器内部において火薬類が発火した非常時には弾薬用容器の爆発を避けられ、発火時安全性も担保することができる。 According to the ammunition container of the present invention, the ratio of the thickness (D1) of the container body to the outer diameter (D0) of the container body is set to 0.015≦D1/D0≦0.031, so that explosives It is possible to avoid fragmentation of the container body in case of an emergency, and ensure safety at the time of ignition. Further, the ratio of the length (L1) of the slit to the length (L0) of the container body and the ratio of the total length (ΣA1) of the non-opening portion to the length (L1) of the slit are designed within a predetermined range. As a result, it is possible to avoid the explosion of the ammunition container in an emergency when the explosives are ignited inside the container while ensuring the drop strength and airtightness in the normal state, and to ensure the safety at the time of ignition.

実施形態1の弾薬用容器の一部破断側面図である。It is a partially broken side view of the ammunition container of Embodiment 1. 実施形態2の弾薬用容器の一部破断側面図である。It is a partially broken side view of the ammunition container of Embodiment 2.

以下に、本発明の代表的な実施形態について説明する。図1に示すように、本実施形態1の弾薬用容器1は、有底筒状の容器本体10と、該容器本体10の開口を塞ぐ蓋体11とを有し、内部に複数個の弾薬または発射装薬(図示せず)が直列に並べて装填されるようになっている。弾薬(発射薬)としては、シングルベース発射薬、ダブルベース発射薬、トリプルベース発射薬、マルチベース発射薬等が用いられる。 Hereinafter, representative embodiments of the present invention will be described. As shown in FIG. 1, an ammunition container 1 according to the first embodiment has a bottomed cylindrical container body 10 and a lid 11 that closes an opening of the container body 10, and has a plurality of ammunition inside. Alternatively, a propellant charge (not shown) is arranged in series and loaded. As the ammunition (propellant), single-base propellant, double-base propellant, triple-base propellant, multi-base propellant, etc. are used.

第1の発明の容器本体10は鉄鋼製であり、鉄鋼板の短辺を丸めて、長辺同士を突き合わせ、突き合わせた長辺において溶接される電縫鋼管または板巻鋼管であって、軸方向に連続した溶接部30を有する。 The container body 10 of the first invention is made of steel, and is an electric resistance welded steel pipe or plate-wound steel pipe in which the short sides of the steel plates are rounded, the long sides are abutted, and the abutted long sides are welded. Has a continuous welded portion 30.

第2の発明の容器本体10は鉄鋼製であり、加熱された丸鋼片を穿孔機で中空管とした後、プラグミルで圧延した継ぎ目無し鋼管であって、溶接部を有さない。 The container body 10 of the second invention is made of steel, and is a seamless steel tube obtained by forming a heated round steel piece into a hollow tube with a punching machine and rolling it with a plug mill, and having no welded portion.

容器本体10の外径D0に対して容器本体10の厚みD1の比を0.015≦D1/D0≦0.031に設定することが好ましい。D1/D0が0.015より小さいと火薬類が発火した非常時に容器本体が破片化する場合があり、D1/D0が0.031より大きいと容器本体10自体の重量が増加して運搬時や取り扱い時に支障をきたす。155mm級のりゅう弾砲用発射装薬に用いる弾薬用容器の場合、容器本体10の厚みDは一般に2.6〜3.7mmである。 It is preferable to set the ratio of the thickness D1 of the container body 10 to the outer diameter D0 of the container body 10 to 0.015≦D1/D0≦0.031. If D1/D0 is smaller than 0.015, the container body may be fragmented in an emergency when explosives are ignited, and if D1/D0 is larger than 0.031, the weight of the container body 10 itself increases and during transportation or It causes trouble when handling. In the case of an ammunition container used for a 155 mm class shell ammunition, the thickness D 1 of the container body 10 is generally 2.6 to 3.7 mm.

蓋体11は、弾薬用容器1内を密閉できるものであれば、その材料は特に制限されない。例えば容器本体10と同様の鉄鋼製とするほか、鉄鋼以外の金属製、プラスチック製、繊維強化プラスチック製、樹脂含浸紙製、又はゴム製とすることも可能である。蓋体11の形状は、平板状、ドーム状、カップ状であり特に制限されない。蓋体11は、容器本体10の開口へ圧入又は螺合により嵌合される。 The material of the lid 11 is not particularly limited as long as it can seal the inside of the ammunition container 1. For example, in addition to the same steel as the container body 10, it is also possible to use metal other than steel, plastic, fiber-reinforced plastic, resin-impregnated paper, or rubber. The shape of the lid body 11 is a flat plate shape, a dome shape, or a cup shape, and is not particularly limited. The lid 11 is fitted into the opening of the container body 10 by press fitting or screwing.

そのうえで、容器本体10の円筒部10aには、軸方向に延びるスリット20が形成されている。当該スリット20は、複数個の開口孔20aが同一直線上に並んだミシン目状(破線状)を呈し、各開口孔20aは円筒部10aを内外貫通して穿設されている。これにより、弾薬用容器1内において弾薬が発火した際に、各開口孔20aを介して燃焼ガスを積極的に弾薬用容器1外へ放出することで内圧上昇を抑制でき、弾薬用容器1の爆発を回避することができる。一方、スリット20はミシン目状に形成されているため、各開口孔20aの間には非開口部20bが存在する。これにより、非開口部を有しない、すなわちスリット全体が連続した開口孔からなるスリットを形成した場合よりも落下強度が高くなる。 In addition, a slit 20 extending in the axial direction is formed on the cylindrical portion 10a of the container body 10. The slit 20 has a perforation shape (broken line shape) in which a plurality of opening holes 20a are arranged on the same straight line, and each opening hole 20a is formed by penetrating the cylindrical portion 10a in and out. Thereby, when the ammunition is ignited in the ammunition container 1, the combustion gas is positively released to the outside of the ammunition container 1 through each opening 20a, so that the internal pressure rise can be suppressed, and the ammunition container 1 Explosion can be avoided. On the other hand, since the slit 20 is formed in a perforated shape, there is a non-opening portion 20b between each opening hole 20a. As a result, the drop strength is higher than in the case where a slit having no non-opening portion, that is, a slit formed of continuous opening holes is formed.

各開口孔20aの形状は、軸方向に長い長方形や楕円形のほか、円形や正方形とすることもできる。中でも、軸方向に長い略直線形状となるような長方形や楕円形が好ましい。 The shape of each opening 20a may be a rectangle or an ellipse that is long in the axial direction, or a circle or a square. Above all, a rectangle or an ellipse that is substantially linear in the axial direction is preferable.

ここで、容器本体10の長さをL0、スリット20の長さをL1、各開口孔20aの長さをA0、各開口孔20aの間に存在する非開口部20bの長さ(隣り合う開口孔20a同士の距離)をA1としたとき、容器本体10の長さL0に対するスリット20の長さL1の比(L1/L0)は、0.60≦L1/L0≦0.95、好ましくは0.70≦L1/L0≦0.95とする。(L1/L0)が0.60未満では、容器本体10の長さL0に対してスリット20の長さL1が短すぎることで、弾薬用容器1内において火薬類が発火した際に、燃焼ガスが弾薬用容器1の全体から効率よく放出されず、弾薬用容器1が爆発する危険性が高まり発火時安全性が不足する。一方、(L1/L0)の上限が0.95より大きい場合は蓋体11の嵌合部に干渉し、火薬類が発火した際に嵌合部が変形し蓋体11が飛散して発火時安全性が不足する。 Here, the length of the container body 10 is L0, the length of the slit 20 is L1, the length of each opening hole 20a is A0, and the length of the non-opening portion 20b existing between each opening hole 20a (adjacent openings When the distance between the holes 20a) is A1, the ratio (L1/L0) of the length L1 of the slit 20 to the length L0 of the container body 10 is 0.60≦L1/L0≦0.95, preferably 0. .70≦L1/L0≦0.95. If (L1/L0) is less than 0.60, the length L1 of the slit 20 is too short with respect to the length L0 of the container body 10, so that when the explosives are ignited in the ammunition container 1, the combustion gas Is not efficiently released from the entire ammunition container 1, and the risk of the ammunition container 1 exploding is increased and safety at the time of ignition is insufficient. On the other hand, when the upper limit of (L1/L0) is larger than 0.95, it interferes with the fitting part of the lid 11, and when the explosives are ignited, the fitting part is deformed and the lid 11 scatters to ignite. Lack of safety.

同時に、スリット20の長さL1に対する非開口部20bの長さA1の和(ΣA1)が、0.04≦ΣA1/L1≦0.30、好ましくは0.12≦ΣA1/L1≦0.20の関係も満たすように設計する。これにより、スリット20を設けることで発火時安全性を担保しながら、スリット20を形成することによる強度低下を必要最低限に抑えられるので、落下強度も確実に担保することができる。(ΣA1/L1)が0.04未満では弾薬用容器1の落下強度が不足し、0.30を超えるとスリット20が開口するために必要な圧力が高すぎて発火時安全性が不足する。スリット20の長さL1は弾薬用容器に収納する弾薬の大きさにより設定されるため、非開口部20bの長さA1としては、好ましくは1mm以上13mm以下、さらに好ましくは1mm以上5mm以下に設定することで、落下強度試験及び発火時安全性試験を同時に満たすことができる。 At the same time, the sum (ΣA1) of the length A1 of the non-opening portion 20b to the length L1 of the slit 20 is 0.04≦ΣA1/L1≦0.30, preferably 0.12≦ΣA1/L1≦0.20. Design to meet relationships. Thus, the provision of the slits 20 ensures the safety at the time of ignition, while the reduction in strength due to the formation of the slits 20 can be suppressed to a necessary minimum, so that the drop strength can be reliably ensured. When (ΣA1/L1) is less than 0.04, the drop strength of the ammunition container 1 is insufficient, and when it exceeds 0.30, the pressure required for opening the slit 20 is too high and the safety during ignition is insufficient. Since the length L1 of the slit 20 is set according to the size of the ammunition stored in the ammunition container, the length A1 of the non-opening portion 20b is preferably set to 1 mm or more and 13 mm or less, more preferably 1 mm or more and 5 mm or less. By doing so, the drop strength test and the fire safety test can be satisfied at the same time.

上記2つの条件を同時に満たす限り、開口孔20aの穿設個数は特に制限されない。好ましくは3〜50個、より好ましくは10〜40個、さらに好ましくは20〜30個の範囲で自由に設計できる。また、上記2つの条件を同時に満たす範囲において、各開口孔20aの長さは10〜200mm好ましくは20〜160mmの範囲で自由に設計することができる。各開口孔20aや各非開口部20bの長さは必ずしも統一されていなくてもよいが、全ての開口孔20a及び非開口部20bの長さは同じであることが好ましい。また、各開口孔20bの幅(弾薬用容器における周方向寸法)も0.05〜7.0mm、好ましくは0.1〜5.0mmの範囲で自由に設計すればよい。 The number of openings 20a to be provided is not particularly limited as long as the above two conditions are simultaneously satisfied. The number can be freely designed within the range of preferably 3 to 50, more preferably 10 to 40, and further preferably 20 to 30. Further, the length of each opening hole 20a can be freely designed within a range of 10 to 200 mm, preferably 20 to 160 mm, in a range where the above two conditions are simultaneously satisfied. The lengths of the respective opening holes 20a and the respective non-opening portions 20b do not necessarily have to be the same, but it is preferable that all the opening holes 20a and the non-opening portions 20b have the same length. Further, the width of each opening hole 20b (circumferential dimension in the container for ammunition) may be freely designed within the range of 0.05 to 7.0 mm, preferably 0.1 to 5.0 mm.

次に、図2に示す本実施形態2の弾薬用容器2について説明する。容器本体10は鉄鋼製であり、予め円筒状に形成された継目無し鋼管である。 Next, the ammunition container 2 of Embodiment 2 shown in FIG. 2 will be described. The container body 10 is made of steel, and is a seamless steel pipe that is formed in a cylindrical shape in advance.

容器本体10の外径D0に対して容器本体10の厚みD1の比を0.015≦D1/D0≦0.031に設定することが好ましい。D1/D0が0.015より小さいと火薬類が発火した非常時に容器本体が破片化する場合があり、D1/D0が0.031より大きいと容器本体10自体の重量が増加して運搬時や取り扱い時に支障をきたす。155mm級のりゅう弾砲用発射装薬に用いる弾薬用容器の場合、容器本体10の厚みDは一般に2.6〜3.7mmである。
It is preferable to set the ratio of the thickness D1 of the container body 10 to the outer diameter D0 of the container body 10 to 0.015≦D1/D0≦0.031. If D1/D0 is less than 0.015, the container body may be fragmented in an emergency when explosives are ignited, and if D1/D0 is greater than 0.031, the weight of the container body 10 itself increases and during transportation, It causes trouble when handling. In the case of an ammunition container used for a 155 mm class projectile charge for a shell, the thickness D 1 of the container body 10 is generally 2.6 to 3.7 mm.

本実施形態2である弾薬用容器2の蓋体11及びスリット20の形態は、実施形態1である弾薬用容器1と同一である。 The forms of the lid 11 and the slit 20 of the ammunition container 2 according to the second embodiment are the same as those of the ammunition container 1 according to the first embodiment.

なお、図示していないが、円筒部10aの外周面又は内周面には、弾薬用容器1の気密性を担保するため、スリット20の各開口孔20aを封止する封止材が接合される。封止材は、各開口孔20aを個別に封止したり、複数個を纏めて封止するなど、比較的短寸なものを複数枚接合することもできるが、生産性の観点からは、全ての開口孔20aを長尺な1つの封止材によって封止することが好ましい。封止材は、容器本体10へ接着ないし溶接等によって接合すればよい。また、封止材は、容器本体10よりも強度が低い素材とする。弾薬用容器1内において弾薬が発火した際に、内圧上昇に伴って他の部位よりも優先的に破損されなければならないためである。例えば、鉄鋼製の容器本体10に対して、封止材はアルミニウムや銅などの軟質金属製、又はポリエチレンやポリプロピレンなどの合成樹脂製、又はシリコンシーラントなどのシーラント材とする。 Although not shown, a sealing material that seals each opening hole 20a of the slit 20 is bonded to the outer peripheral surface or the inner peripheral surface of the cylindrical portion 10a in order to ensure the airtightness of the ammunition container 1. It As the sealing material, a plurality of relatively short ones can be joined by individually sealing each opening hole 20a or collectively sealing a plurality of them, but from the viewpoint of productivity, It is preferable to seal all the opening holes 20a with one long sealing material. The sealing material may be bonded to the container body 10 by adhesion or welding. In addition, the sealing material is a material having lower strength than the container body 10. This is because, when the ammunition is ignited in the ammunition container 1, it must be broken preferentially over other parts as the internal pressure increases. For example, for the container body 10 made of steel, the sealing material is made of a soft metal such as aluminum or copper, a synthetic resin such as polyethylene or polypropylene, or a sealant material such as a silicone sealant.

次に、上記構成の弾薬用容器1の作用について説明する。弾薬用容器1の運搬時や一時保管時等の取扱時において、衝撃や温度上昇等の原因により弾薬用容器1内の弾薬または発射装薬が燃焼反応を引き起こした場合、発生する燃焼ガスによって弾薬用容器1内の圧力が上昇する。すると、燃焼ガスの高い圧力により封止材が他の部位に優先して破損することでスリット20が開口され、燃焼ガスがスリット20を介して外部へ積極的に放出される。これにより、弾薬用容器1の内圧上昇が抑制されて弾薬用容器1の爆発が回避され、発火時安全性が確保される。一方、容器本体10の長さL0に対するスリット20の長さL1の比及びスリット20の長さL1に対する非開口部20bの長さA1の和(ΣA1)の比が所定の条件を満たすことで、仮に運搬時等に弾薬用容器1が地面に落下しても、落下強度が確保されているので破損および気密性の損失が回避される。 Next, the operation of the ammunition container 1 having the above structure will be described. When handling the ammunition container 1 during transportation or temporary storage, when the ammunition or the propellant charge in the ammunition container 1 causes a combustion reaction due to a shock, a temperature rise, etc. The pressure in the container 1 increases. Then, due to the high pressure of the combustion gas, the sealing material is damaged preferentially to other parts, so that the slit 20 is opened and the combustion gas is positively released to the outside through the slit 20. As a result, the rise in the internal pressure of the ammunition container 1 is suppressed, the explosion of the ammunition container 1 is avoided, and safety at the time of ignition is secured. On the other hand, the ratio of the length L1 of the slit 20 to the length L0 of the container body 10 and the ratio of the sum (ΣA1) of the length A1 of the non-opening portion 20b to the length L1 of the slit 20 satisfy predetermined conditions, Even if the ammunition container 1 falls onto the ground during transportation, the drop strength is ensured, so damage and loss of airtightness are avoided.

また、弾薬用容器が落下した際の破損をより回避できると共に、運搬容易性を向上するため、容器本体10の軸方向端部や中央部に、容器本体10の外面を囲むよう溶接等によって設けられた、把手状のリムを設けることもできる。 Further, in order to further avoid damage when the container for ammunition is dropped and to improve the transportability, it is provided by welding or the like on the axial end portion or the central portion of the container body 10 so as to surround the outer surface of the container body 10. A handle-like rim may also be provided.

容器本体としては、板巻鋼管、継目無し鋼管、スパイラル鋼管を用いた。各鋼管の引張強度は270N/mmの鋼材を用いた。容器本体の長さL0は1126mmとした。 As the container body, a plate winding steel pipe, a seamless steel pipe, or a spiral steel pipe was used. A steel material having a tensile strength of 270 N/mm 2 was used. The length L0 of the container body was 1126 mm.

スリットを封止する封止材には、厚み0.5mmで粘着力が7.9N/10mmのアルミニウムテープを使用した。封止材の長さは各スリットの長さL1に対して30mm長くなるように、封止材の両端をスリットの両端から各15mmの位置に配置した。 An aluminum tape having a thickness of 0.5 mm and an adhesive force of 7.9 N/10 mm was used as a sealing material for sealing the slit. Both ends of the sealing material were arranged at positions of 15 mm from both ends of the slit so that the length of the sealing material was 30 mm longer than the length L1 of each slit.

弾薬用容器の内部には、ニトロセルロース、ニトログリセリン及びニトログアニジンを主成分とするトリプルベース発射薬を13kg収容した。このトリプルベース発射薬は六角19孔形状に形成され、直径14mm及び長さ14mm、内孔径0.5mmである。 Inside the ammunition container, 13 kg of a triple base propellant containing nitrocellulose, nitroglycerin and nitroguanidine as main components was contained. This triple base propellant is formed into a hexagonal 19-hole shape, and has a diameter of 14 mm, a length of 14 mm, and an inner hole diameter of 0.5 mm.

そのうえで、容器本体へ、表1,表2および表3に示す条件で1本のスリットを軸方向と平行に形成し、落下強度及び発火時安全性を下記のように評価した。その結果も表1,2,3に示す。 Then, one slit was formed in the container body under the conditions shown in Table 1, Table 2 and Table 3 parallel to the axial direction, and the drop strength and the safety at the time of ignition were evaluated as follows. The results are also shown in Tables 1, 2, and 3.

(落下強度)
弾薬用容器を地面に対して平行にした状態で2.1mの高さから落下させる落下強度試験で、次の基準で評価した。
○:容器本体が変形せず、アルミニウムテープが破れなかった。
×:容器本体が変形して、アルミニウムテープが破れた。
(Drop strength)
The drop strength test in which the ammunition container was dropped from a height of 2.1 m in a state parallel to the ground was evaluated according to the following criteria.
◯: The container body was not deformed and the aluminum tape was not broken.
X: The container body was deformed and the aluminum tape was broken.

(発火時安全性)
爆薬によって1900m/sに加速された、直径15mm、質量20gの円柱形状の鋼鉄製飛翔体を弾薬用容器の円筒部側面へ衝突させて発火時安全性試験を行い、次の基準で評価した。
○:弾薬用容器が破片化することなくスリットが開口し爆発しなかった。
×:弾薬用容器が2つ以上の破片となって飛散して爆発した。
(Safety at ignition)
A cylindrical steel projectile having a diameter of 15 mm and a mass of 20 g, which was accelerated by explosives to 1900 m/s, was made to collide with the side surface of the cylindrical portion of the ammunition container to perform a safety test during ignition, and evaluation was performed according to the following criteria.
◯: The ammunition container did not fragment and the slit did not open and did not explode.
X: The ammunition container became two or more pieces and was scattered and exploded.

Figure 0006707965
Figure 0006707965

Figure 0006707965
Figure 0006707965

Figure 0006707965
Figure 0006707965

表1,2の結果から、0.60≦L1/L0≦0.95と0.04≦A1の和/L1≦0.30の条件を同時に満たす条件のスリットを形成した実施例1〜15では、落下強度及び発火時安全性が確実に担保されていた。 From the results of Tables 1 and 2, in Examples 1 to 15 in which the slits were formed under the condition of simultaneously satisfying the conditions of 0.60≦L1/L0≦0.95 and 0.04≦A1/L1≦0.30 , The drop strength and safety at the time of ignition were ensured.

一方、比較例1はスパイラル鋼管であって(D1/D0)が小さすぎるため、発火時安全性が悪かった。比較例2,7は、(D1/D0)が小さすぎるため、発火時安全性が悪かった。比較例3,8は(L1/L0)が小さすぎるため、発火時安全性が悪かった。比較例4,9は(L1/L0)が大きすぎるため、蓋体の嵌合部に干渉し、火薬類が発火した際に嵌合部が変形して蓋体が飛散して発火時安全性が不足していた。また、比較例5,10は(A1の和/L1)が小さすぎるため、落下強度が悪かった。一方、比較例6,11は、(A1の和/L1)が大きすぎるため、発火時安全性が悪かった。 On the other hand, Comparative Example 1 was a spiral steel pipe, and (D1/D0) was too small, so the safety during ignition was poor. In Comparative Examples 2 and 7, (D1/D0) was too small, so the safety during ignition was poor. In Comparative Examples 3 and 8, (L1/L0) was too small, so the safety at the time of ignition was poor. In Comparative Examples 4 and 9, since (L1/L0) was too large, it interfered with the fitting part of the lid body, and when the explosives ignited, the fitting part was deformed and the lid body scatters to ensure safety at the time of ignition. Was running out. Further, in Comparative Examples 5 and 10, (sum of A1/L1) was too small, so the drop strength was poor. On the other hand, in Comparative Examples 6 and 11, (sum of A1/L1) was too large, and thus safety at the time of ignition was poor.

1・2・3 弾薬用容器
10 容器本体
10a 円筒部
11 蓋体
20 スリット
20a 開口孔
20b 非開口部
30 連続した溶接部
1, 2, 3 Ammunition container 10 Container body 10a Cylindrical part 11 Lid 20 Slit 20a Open hole 20b Non-opened part 30 Continuous welded part

Claims (2)

有底筒状の容器本体と、該容器本体の開口を塞ぐ蓋体とを有し、前記容器本体の円筒部に、複数個の開口孔が軸方向に延びる貫通した同一直線上に並んだミシン目状のスリットを有する弾薬用容器であって、
前記容器本体の円筒部は軸方向に連続した溶接部を有する鋼管であり、
前記容器本体の外径をD0、前記容器本体の厚みをD1としたとき、
前記容器本体の厚みD1は2.6〜5mmであり、
0.015≦D1/D0≦0.031の関係を満たし、
前記容器本体の長さをL0、前記スリットの長さをL1、各開口孔間の非開口部の長さをA1としたとき、
0.60≦L1/L0≦0.95
0.04≦A1の和/L1≦0.30
の関係を満たす、発射装薬又は火砲用弾薬を梱包するための弾薬用容器。
A sewing machine having a bottomed cylindrical container body and a lid for closing the opening of the container body, and a plurality of opening holes penetrating in the same straight line extending in the axial direction in the cylindrical portion of the container body. A container for ammunition having an eye-shaped slit,
The cylindrical portion of the container body is a steel pipe having a continuous weld in the axial direction,
When the outer diameter of the container body is D0 and the thickness of the container body is D1,
The thickness D1 of the container body is 2.6 to 5 mm,
Satisfying the relation of 0.015≦D1/D0≦0.031,
When the length of the container body is L0, the length of the slit is L1, and the length of the non-opening portion between the opening holes is A1,
0.60≦L1/L0≦0.95
0.04≦A1 sum/L1≦0.30
An ammunition container for packing a propellant charge or an ammunition for guns that satisfies the relationship of.
有底筒状の容器本体と、該容器本体の開口を塞ぐ蓋体とを有し、前記容器本体の円筒部に、複数個の開口孔が軸方向に延びる貫通した同一直線上に並んだミシン目状のスリットを有する弾薬用容器であって、
前記容器本体の円筒部は継目無し鋼管であり、
前記容器本体の外径をD0、前記容器本体の厚みをD1としたとき、
前記容器本体の厚みD1は2.6〜5mmであり、
0.015≦D1/D0≦0.031の関係を満たし、
前記容器本体の長さをL0、前記スリットの長さをL1、各開口孔間の非開口部の長さをA1としたとき、
0.60≦L1/L0≦0.95
0.04≦A1の和/L1≦0.30
の関係を満たす、発射装薬又は火砲用弾薬を梱包するための弾薬用容器。
A sewing machine that has a bottomed cylindrical container body and a lid that closes the opening of the container body, and a plurality of opening holes are arranged in the cylindrical portion of the container body in the same straight line extending in the axial direction. A container for ammunition having an eye-shaped slit,
The cylindrical portion of the container body is a seamless steel pipe,
When the outer diameter of the container body is D0 and the thickness of the container body is D1,
The thickness D1 of the container body is 2.6 to 5 mm,
Satisfying the relation of 0.015≦D1/D0≦0.031,
When the length of the container body is L0, the length of the slit is L1, and the length of the non-opening portion between the opening holes is A1,
0.60≦L1/L0≦0.95
0.04≦A1 sum/L1≦0.30
An ammunition container for packing a propellant charge or an ammunition for guns that satisfies the relationship of.
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KR101399149B1 (en) * 2014-01-28 2014-05-27 최홍준 Ammunition container
JP6399812B2 (en) * 2014-06-02 2018-10-03 旭化成株式会社 Ammunition container with Y-shaped weak part
JP6399811B2 (en) * 2014-06-02 2018-10-03 旭化成株式会社 Ammunition container having a stitch-like fragile portion
JP6399815B2 (en) * 2014-06-10 2018-10-03 旭化成株式会社 Ammunition container having a weak part in the main body cylindrical part and a lock spider in the lid

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