JP2007205587A - Smoke shell - Google Patents

Smoke shell Download PDF

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JP2007205587A
JP2007205587A JP2006021679A JP2006021679A JP2007205587A JP 2007205587 A JP2007205587 A JP 2007205587A JP 2006021679 A JP2006021679 A JP 2006021679A JP 2006021679 A JP2006021679 A JP 2006021679A JP 2007205587 A JP2007205587 A JP 2007205587A
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smoke
casing
smoke generating
spring member
torsion
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JP4897299B2 (en
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Takaya Ito
高哉 伊藤
Yasunori Matsunaga
康紀 松永
Yuki Kikuchi
雄輝 菊地
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Nippon Koki Co Ltd
Howa Machinery Ltd
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Nippon Koki Co Ltd
Howa Machinery Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/46—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing gases, vapours, powders or chemically-reactive substances
    • F42B12/48—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing gases, vapours, powders or chemically-reactive substances smoke-producing, e.g. infrared clouds

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To shorten a time necessary from firing to start of shielding by expanding screening smoke. <P>SOLUTION: In this smoke shell 1, smoke bodies 17 in an upper casing 2 are disposed in multilayer in a state of circumferentially dividing an annular space around an axis of the casing 2 into four, and first and second torsion springs 24, 25 capable of applying dispersion force in the direction intersecting with the firing direction, to each fired smoke body 17, are disposed inside of the smoke bodies 17 in a state of being compressed by a control plate 29, so that the smoke body 17 is dispersed in the radiating direction by restoring force of the first and second torsion springs 24, 25 in the released compression regulation immediately after firing from the casing 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、戦闘訓練等の際に用いられる発煙弾に関する。   The present invention relates to a smoke bomb used in battle training or the like.

発煙弾は、底壁を有し、上部に離脱可能な上蓋を装着した筒状のケーシングと、そのケーシングの底壁に連設され、発射薬を設けた発射体と、ケーシングに内蔵され、例えば特許文献１に示すように発熱剤と酸化亜鉛等の組成物からなる発煙剤体とを備え、戦車等の戦闘車両に搭載された発射装置に装填される。発射装置が発射薬に点火すると、発煙剤体に着火されてケーシングから発射され、発煙剤体が発煙しながら飛行して煙幕を形成するものとなる（特許文献２，３参照）。   The smoke bomb has a bottom wall and is provided with a cylindrical casing with a top cover that can be removed at the top, a projectile that is connected to the bottom wall of the casing and provided with a propellant, and is built in the casing. As shown in Patent Document 1, it includes a heat generating agent and a smoke generating body made of a composition such as zinc oxide, and is loaded into a launching device mounted on a battle vehicle such as a tank. When the projectile ignites the propellant, the smoke generating body is ignited and fired from the casing, and the smoke generating body flies while generating smoke to form a smoke screen (see Patent Documents 2 and 3).

特開２０００−２６４７６９号公報JP 2000-264769 A 特開２００４−２２５９２５号公報JP 2004-225925 A 特公平４−４７２３９号公報Japanese Patent Publication No. 4-47239

上記従来の発煙弾にあっては、発煙剤体がケーシングの軸線方向で発射されることから、発煙剤体を広範囲で分散させるためには発射距離を比較的長く確保する必要があった。よって、発射と同時に発煙剤体に着火させても煙幕展張による遮蔽開始までに数秒の時間がかかるものとなっていた。   In the conventional smoke emitting bomb, the smoke emitting body is fired in the axial direction of the casing. Therefore, in order to disperse the smoke emitting body over a wide range, it is necessary to ensure a relatively long firing distance. Therefore, even if the smoke generating material was ignited at the same time as the launch, it took several seconds to start shielding by the smoke screen extension.

そこで、本発明は、煙幕展張までの発射距離を長くすることなく、発射から煙幕展張による遮蔽開始までに要する時間を大幅に短縮させることができる発煙弾を提供することを目的としたものである。   Therefore, the present invention aims to provide a smoke bomb that can significantly reduce the time required from the launch to the start of shielding by the smoke screen extension without increasing the launch distance to the smoke screen extension. .

上記目的を達成するために、請求項１に記載の発明は、発煙剤体を、ケーシングの軸線回りの環状空間を周方向に分割する形状として層状に配置し、発煙剤体におけるケーシングの軸心側に、発射された発煙剤体に発射方向と交差する方向への分散力を付与可能な分散手段を設けたことを特徴とするものである。
請求項２に記載の発明は、請求項１の目的に加えて、分散手段による効果的な分散が期待できる発煙剤体を得るために、発煙剤体を、ケーシング軸線回りの環状空間を３つ以上に均等分割して多層状に配置される板状体としたものである。
請求項３に記載の発明は、請求項１又は２の目的に加えて、分散手段を簡単な構成で得るために、分散手段を、ケーシングの軸心に配置され、復元力によって外側の発煙剤体に分散力を付与可能なバネ部材と、そのバネ部材をケーシング内でのみ圧縮状態に規制する規制部材とからなる構成としたものである。 In order to achieve the above object, according to the first aspect of the present invention, the fuming agent body is arranged in layers in a shape that divides the annular space around the axis of the casing in the circumferential direction, and the axial center of the casing in the fuming agent body is provided. Dispersing means capable of imparting a dispersing force in a direction crossing the firing direction to the fired smoke generating agent is provided on the side.
In addition to the object of the first aspect, the second aspect of the invention provides a smoke generating body that can be expected to be effectively dispersed by the dispersing means, and the smoke generating body is divided into three annular spaces around the casing axis. A plate-like body that is equally divided and arranged in multiple layers as described above.
According to a third aspect of the present invention, in addition to the object of the first or second aspect, in order to obtain the dispersing means with a simple configuration, the dispersing means is disposed on the axial center of the casing and is provided with an outer smoke generating agent by a restoring force. A spring member capable of imparting a dispersion force to the body and a regulating member that regulates the spring member to a compressed state only within the casing are used.

請求項４に記載の発明は、請求項３の目的に加えて、分散力が各発煙剤体へ万遍なく伝わるバネ部材とするために、バネ部材を、屈曲位置にねじり部を夫々設けたＭ字状又はＷ字状のねじりバネとして、ケーシングの軸心に一対のねじりバネをケーシングの軸線方向から見て十字状となるように配設したものである。
請求項５に記載の発明は、請求項３又は４の目的に加えて、ケーシング内でのバネ部材の圧縮状態の規制と発射直後の規制解除とを確実に行える規制部材を得るために、規制部材を、上下の発煙剤体の間でケーシング軸線回りの環状空間を周方向に分割する形状で形成され、外周縁がケーシングの内面側に当接する規制板とし、各規制板におけるケーシング軸心側に、圧縮状態のバネ部材の端部を係止する係止部を形成した構成としたものである。
請求項６に記載の発明は、請求項１乃至５の何れかの目的に加えて、発射直後に分散する発煙剤体に合わせてその発煙を迅速に行うために、分散手段の外側に位置する発煙剤体の発煙剤を速燃薬としたものである。 In addition to the object of claim 3, the invention described in claim 4 is provided with a spring member and a torsional portion at the bending position in order to make the spring member transmit the dispersion force uniformly to each smoke generating body. As an M-shaped or W-shaped torsion spring, a pair of torsion springs are arranged at the axial center of the casing so as to have a cross shape when viewed from the axial direction of the casing.
In addition to the object of the third or fourth aspect, the invention according to claim 5 is provided with a restriction member for obtaining a restriction member that can surely restrict the compression state of the spring member in the casing and release the restriction immediately after firing. The member is formed in a shape that divides the annular space around the casing axis line between the upper and lower smoke generating bodies in the circumferential direction, and the outer peripheral edge is a restriction plate that contacts the inner surface side of the casing. Further, a locking portion for locking the end portion of the compressed spring member is formed.
In addition to the object of any one of the first to fifth aspects, the invention described in claim 6 is located outside the dispersing means in order to quickly emit smoke in accordance with the smoke generating material that is dispersed immediately after launch. The smoke generator of the smoke generator body is a fast burner.

請求項１に記載の発明によれば、分散手段によって各発煙剤体が発射直後に発射方向との交差方向へ確実に分散する。よって、煙幕展張までの発射距離を長く確保する必要がなく、発射から煙幕展張による遮蔽開始までに要する時間を大幅に短縮させることができる。
請求項２に記載の発明によれば、請求項１の効果に加えて、発煙剤体の形状の特定により、分散手段による分散力が好適に伝わり、発煙剤体の効果的な分散が期待できる。
請求項３に記載の発明によれば、請求項１又は２の効果に加えて、バネ部材の採用により、分散手段を簡単な構成で得ることができる。
請求項４に記載の発明によれば、請求項３の効果に加えて、十字状の配設した一対のねじりバネによって分散力を各発煙剤体へ万遍なく伝えることができる。
請求項５に記載の発明によれば、請求項３又は４の効果に加えて、規制板の採用により、ケーシング内でのバネ部材の圧縮状態の規制と発射直後の規制解除とが確実に行える規制部材を得ることができる。
請求項６に記載の発明によれば、請求項１乃至５の何れかの効果に加えて、速燃薬の採用により、発射直後に分散する発煙剤体が迅速に発煙して煙幕展張の開始時間の一層の短縮が可能となる。
According to the first aspect of the present invention, each smoke generating body is surely dispersed in the crossing direction with the firing direction immediately after firing by the dispersing means. Therefore, it is not necessary to ensure a long launch distance to the smoke screen extension, and the time required from the launch to the start of shielding by the smoke screen extension can be greatly reduced.
According to the invention described in claim 2, in addition to the effect of claim 1, by specifying the shape of the fuming agent body, the dispersion force by the dispersing means is suitably transmitted, and effective dispersion of the fuming agent body can be expected. .
According to the third aspect of the invention, in addition to the effect of the first or second aspect, the use of the spring member makes it possible to obtain the dispersing means with a simple configuration.
According to the fourth aspect of the present invention, in addition to the effect of the third aspect, the dispersion force can be uniformly transmitted to each smoke generating body by the pair of torsion springs arranged in a cross shape.
According to the fifth aspect of the present invention, in addition to the effect of the third or fourth aspect, the regulation plate can be used to reliably regulate the compression state of the spring member in the casing and release the regulation immediately after launching. A regulating member can be obtained.
According to the sixth aspect of the present invention, in addition to the effect of any one of the first to fifth aspects, the use of the fast burning agent causes the smoke generating material dispersed immediately after launching to quickly emit smoke and start the smoke curtain extension. The time can be further shortened.

以下、本発明の実施の形態を図面に基づいて説明する。
図１は、本発明の発煙弾の一例を示す中央縦断面図、図２はＡ−Ａ線断面図で、発煙弾１は、後述する発煙剤体を収容するケーシング２と、そのケーシング２の下方に連結される発射体３とからなる。発射体３は、中央に発射薬５を保持したベース部４と、ベース部４に外装されて外周にリング状の電極７，７を備えた絶縁部６とを有し、下方から両者を貫通する３本のボルト８，８・・によってケーシング２の底壁２ａに固着されている。発射薬５の上端は、ベース部４の上端に突設した筒部９と共に底壁２ａの中央に形成した透孔１０を介してケーシング２内に露出している。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a central longitudinal sectional view showing an example of the smoke bomb of the present invention, FIG. 2 is a sectional view taken along line AA, and the smoke bomb 1 is composed of a casing 2 containing a fuming agent body to be described later, and the casing 2 thereof. And a projectile 3 connected downward. The projectile 3 has a base portion 4 holding a propellant 5 in the center, and an insulating portion 6 that is externally mounted on the base portion 4 and includes ring-shaped electrodes 7 and 7 on the outer periphery, and penetrates both from below. Are fixed to the bottom wall 2a of the casing 2 by three bolts 8, 8,. The upper end of the propellant 5 is exposed in the casing 2 through a through-hole 10 formed in the center of the bottom wall 2 a together with the cylindrical portion 9 protruding from the upper end of the base portion 4.

一方、ケーシング２の上端は、４本のシアピン１１，１１・・によって装着される上蓋１２によって閉塞され、シアピン１１の下方側でケーシング２の外周には、キャップ１３が嵌着されている。このキャップ１３は、戦車等の戦闘車両に搭載された図示しない発射装置の筒体の上端に係止してケーシング２を筒体内の所定位置に保持させるものである。
また、ケーシング２内の底部には、ケーシング２に遊挿する短筒部１５を周設し、中央に透孔１６を設けた受圧板１４が設けられ、その受圧板１４の上方に、ケーシング軸線回りの環状空間を周方向に４等分する板状の発煙剤体１７，１８・・が多層状に収容されている。この発煙剤体は、上方１０層の発煙剤体１７，１７・・に用いられる発煙剤が速燃薬、下方１４層の発煙剤体１８，１８・・に用いられる発煙剤が緩燃薬となっており、発煙剤体１７，１８の周囲でケーシング２の内周との間には、筒体を周方向に３等分してなるガイド１９，１９・・が介在されている。 On the other hand, the upper end of the casing 2 is closed by an upper lid 12 mounted by four shear pins 11,..., And a cap 13 is fitted to the outer periphery of the casing 2 below the shear pins 11. This cap 13 is engaged with the upper end of a cylinder of a launcher (not shown) mounted on a battle vehicle such as a tank to hold the casing 2 at a predetermined position in the cylinder.
In addition, a pressure receiving plate 14 having a short cylindrical portion 15 that is loosely inserted into the casing 2 and having a through hole 16 in the center is provided at the bottom of the casing 2, and a casing axis line is provided above the pressure receiving plate 14. Plate-like smoke generating bodies 17, 18,... That divide the surrounding annular space into four equal parts in the circumferential direction are accommodated in a multilayer shape. The smoke agent used in the upper 10 layers of smoke generators 17, 17,... Is a fast burning agent, and the smoke agent used in the lower 14 layers of smoke generators 18, 18,. The guides 19, 19... Formed by dividing the cylindrical body into three equal parts in the circumferential direction are interposed between the smoke generating bodies 17 and 18 and the inner periphery of the casing 2.

下方側の各発煙剤体１８には、中心側に円弧状の切欠部１８ａが形成されることで、中央に平面視で円形の貫通孔２０が形成される一方、上方側の各発煙剤体１７には、中心側に発煙剤体１８と同じ円弧状の切欠部２１と、その切欠部２１の中央から半径方向に連設される切込部２２とにより、中央に平面視で十字状となる貫通孔２３が形成されている。
こうして発煙剤体１７，１８の中央に形成される貫通孔２０，２３内に、分散手段を構成するバネ部材である第一、第二ねじりバネ２４，２５が収容されている。この第一、第二ねじりバネ２４，２５は、中央下方に下ねじり部２６を、その左右上方に上ねじり部２７，２７を夫々設けたＭ字状で、両者を平面視で十字状に交差させてケーシング２の放射方向へ復元力が生じるように外側の自由端２８，２８を中心側へ撓ませた状態で、下ねじり部２６が夫々発煙剤体１８の貫通孔２０に挿入され、上ねじり部２７，２７を含む左右の山形部分が発煙剤体１７の貫通孔２３の切込部２２に夫々収容されたものである。なお、ここでは第一ねじりバネ２４における上下ねじり部２６，２７の上下方向の間隔の方が、第二ねじりバネ２５における上下ねじり部２６，２７の上下方向の間隔よりも長くなっている。 Each smoke agent body 18 on the lower side is formed with an arc-shaped notch 18a on the center side, so that a circular through hole 20 is formed in the center in plan view, while each smoke agent body on the upper side is formed. 17 includes a circular arc-shaped cutout 21 that is the same as that of the fuming agent body 18 on the center side, and a cutout 22 that is continuously provided in the radial direction from the center of the cutout 21, and has a cross shape in plan view in the center A through-hole 23 is formed.
Thus, first and second torsion springs 24 and 25 which are spring members constituting the dispersing means are accommodated in the through holes 20 and 23 formed in the center of the smoke generating material bodies 17 and 18. The first and second torsion springs 24 and 25 have an M-shape in which a lower torsion portion 26 is provided at the lower center and upper torsion portions 27 and 27 are provided at the upper left and right sides thereof, and both cross in a cross shape in plan view. In the state where the outer free ends 28 and 28 are bent toward the center so that a restoring force is generated in the radial direction of the casing 2, the lower torsion part 26 is inserted into the through hole 20 of the smoke generating body 18, respectively. The left and right chevron portions including the torsion portions 27 and 27 are respectively accommodated in the cut portions 22 of the through holes 23 of the smoke generating material body 17. Here, the vertical spacing between the upper and lower torsion portions 26 and 27 in the first torsion spring 24 is longer than the vertical spacing between the upper and lower torsion portions 26 and 27 in the second torsion spring 25.

但し、ケーシング２内で、発煙剤体１７，１７間の下方側と最上位置の発煙剤体１７の上方とには、発煙剤体１７と同じく周方向へ４等分される規制部材としての規制板２９，２９・・が４枚ずつが設けられている。この規制板２９にも、中心側に、発煙剤体１７と同じ円弧状の切欠部３０と、その切欠部３０の中央から半径方向に連設され、貫通孔２３の切込部２２よりも幅及び長さが短い切込である係止部３１とが夫々設けられて、中央に十字孔３２を形成している。よって、第一、第二ねじりバネ２４，２５は、自由端２８，２８が下側の規制板２９の係止部３１に係止し、上ねじり部２７，２７が上側の規制板２９の係止部３１に保持されることで、ケーシング２内での十字交差と放射方向での圧縮状態とが維持されることになる。   However, in the casing 2, a regulation member as a regulation member that is divided into four equal parts in the circumferential direction, similarly to the smoke agent body 17, on the lower side between the smoke agent bodies 17, 17 and above the uppermost smoke agent body 17. Four plates 29, 29,... Are provided. The restriction plate 29 also has a circular arc-shaped notch 30 similar to that of the fuming agent body 17 and a radial direction from the center of the notch 30 on the center side, and is wider than the notch 22 of the through hole 23. And the latching | locking part 31 which is a notch with short length is each provided, and the cross hole 32 is formed in the center. Therefore, the first and second torsion springs 24 and 25 have their free ends 28 and 28 engaged with the engaging portion 31 of the lower restricting plate 29 and the upper torsion portions 27 and 27 engaged with the upper restricting plate 29. By being held by the stop portion 31, the crossing in the casing 2 and the compressed state in the radial direction are maintained.

以上の如く構成された発煙弾１においては、戦闘車両に設けられた発射装置の筒体に収容されて、発射体３の電極７，７を介して内部の点火機構を作動させると、発射薬５に点火されて透孔１６や貫通孔２０を介して発煙剤体１７，１８に着火し、図３に示すように、シアピン１１を破断させて受圧板１４と共に受圧板１４より上方部分がケーシング２から飛び出す。このケーシング２からの突出と同時に、規制板２９による第一、第二ねじりバネ２４，２５の圧縮規制が解除されるため、圧縮状態の第一、第二ねじりバネ２４，２５が放射方向へ夫々広がる。よって、図４に示すように、発煙剤体１８，１８・・及び規制板２９，２９・・、ガイド１９．１９・・は、上方への飛行と共に第一、第二ねじりバネ２４，２５の復元力によって放射方向へも分散し、各発煙剤体１７，１８から放出される煙が直ちに拡散して煙幕が形成される。   In the smoke bomb 1 configured as described above, when the internal ignition mechanism is actuated via the electrodes 7 and 7 of the projectile 3 when accommodated in the cylinder of the launcher provided in the battle vehicle, 5 is ignited and the smoke generating bodies 17 and 18 are ignited through the through-holes 16 and the through-holes 20, and the shear pins 11 are broken so that the upper portion of the pressure-receiving plate 14 and the pressure-receiving plate 14 is the casing as shown in FIG. Jump out of two. Simultaneously with the protrusion from the casing 2, the compression restriction of the first and second torsion springs 24 and 25 by the restriction plate 29 is released, so that the first and second torsion springs 24 and 25 in the compressed state respectively in the radial direction. spread. Therefore, as shown in FIG. 4, the smoke generator bodies 18, 18,... And the restricting plates 29, 29,... And the guide 19.19. Due to the restoring force, it is dispersed in the radial direction, and the smoke emitted from the smoke generating bodies 17 and 18 is immediately diffused to form a smoke screen.

このように、上記形態の発煙弾１によれば、発煙剤体１７，１７・・を、ケーシング２の軸線回りの環状空間を周方向に４分割する形状として層状に配置し、発煙剤体１７，１７・・におけるケーシング２の軸心側に、発射された各発煙剤体１７に発射方向と交差する方向への分散力を付与可能な分散手段としての第一、第二ねじりバネ２４，２５を設けたことで、発射直後に各発煙剤体１８が発射方向との交差方向へ確実に分散する。よって、煙幕展張までの発射距離を長く確保する必要がなく、発射から煙幕展張による遮蔽開始までに要する時間を大幅に短縮させることができる。
特に発煙剤体１７を、ケーシング２の軸線回りの環状空間を４分割して多層状に配置される板状体としたことで、第一、第二ねじりバネ２４，２５による分散力が好適に伝わり、発煙剤体１７の効果的な分散が期待できる。 As described above, according to the smoke bomb 1 of the above-described form, the smoke agent bodies 17, 17... Are arranged in layers in a shape that divides the annular space around the axis of the casing 2 into four in the circumferential direction. , 17... First and second torsion springs 24, 25 as dispersing means capable of imparting a dispersion force in the direction intersecting the firing direction to each fired smoke generating body 17 on the axial center side of the casing 2. By providing, each smoke generating body 18 is surely dispersed in the direction intersecting the firing direction immediately after launching. Therefore, it is not necessary to ensure a long launch distance to the smoke screen extension, and the time required from the launch to the start of shielding by the smoke screen extension can be greatly reduced.
In particular, the fuming agent body 17 is formed into a plate-like body that is arranged in multiple layers by dividing the annular space around the axis of the casing 2 into four, so that the dispersion force by the first and second torsion springs 24 and 25 is suitably obtained. Therefore, effective dispersion of the smoke generating body 17 can be expected.

また、分散手段を、ケーシング２の軸心に配置され、復元力によって外側の発煙剤体１７に分散力を付与可能な第一、第二ねじりバネ２４，２５と、その第一、第二ねじりバネ２４，２５をケーシング２内でのみ圧縮状態に規制する規制板２９とから形成したことで、簡単な構成で好適な分散手段が得られる。
特に、第一、第二ねじりバネ２４，２５を、屈曲位置にねじり部を夫々設けたＭ字状として、ケーシング２の軸心に十字状となるように配設したことで、分散力を各発煙剤体１７へ万遍なく伝えることができる。 Further, the first and second torsion springs 24 and 25 are arranged in the axial center of the casing 2 and can impart a dispersing force to the outer smoke generating material body 17 by a restoring force. By forming the springs 24 and 25 from the restricting plate 29 that restricts the springs 24 and 25 to the compressed state only in the casing 2, a suitable dispersing means can be obtained with a simple configuration.
In particular, the first and second torsion springs 24 and 25 are arranged in an M shape in which a torsion portion is provided at each bending position, and arranged in a cross shape at the axial center of the casing 2 so that the dispersion force can be reduced. It can be transmitted to the smoke generator 17 uniformly.

さらに、規制部材を、上下の発煙剤体１７，１７間でケーシング２の軸線回りの環状空間を周方向に分割する形状で形成され、外周縁がケーシング２の内面側のガイド１９に当接する規制板２９として、各規制板２９におけるケーシング軸心側に、圧縮状態の第一、第二ねじりバネ２４，２５の自由端２８を係止する係止部３１を形成したことで、ケーシング２内での第一、第二ねじりバネ２４，２５の圧縮状態の規制と発射直後の規制解除とを確実に行うことができる。
そして、第一、第二ねじりバネ２４，２５の外側に位置する発煙剤体１７の発煙剤を速燃薬としたことで、発射直後に分散する発煙剤体１７が迅速に発煙して煙幕展張の開始時間の一層の短縮が可能となる。 Further, the restriction member is formed in a shape that divides the annular space around the axis of the casing 2 in the circumferential direction between the upper and lower smoke generating bodies 17, 17, and the outer peripheral edge contacts the guide 19 on the inner surface side of the casing 2. As the plate 29, a locking portion 31 that locks the free ends 28 of the first and second torsion springs 24 and 25 in the compressed state is formed on the casing axis side of each regulating plate 29. The first and second torsion springs 24, 25 can be reliably regulated in the compressed state and released from regulation immediately after launch.
Then, the smoke generating agent 17 located outside the first and second torsion springs 24 and 25 is used as a fast burning agent, so that the smoke generating agent 17 dispersed immediately after launching quickly emits smoke and extends the smoke screen. It is possible to further shorten the start time of the.

なお、ねじりバネは、一対の十字状に配設するものに限らず、発煙剤体の形態によっては３以上のものを交差状に配設することもできる、また、Ｍ字状に限らず、Ｗ字状としたり、発煙剤体の全ての内縁に当接する自由端を上下方向に延設したりしてもよい。また、ねじりバネが複数の場合は同じ形状の組み合わせにする必要はなく、例えばＭ字とＷ字との組み合わせとしても差し支えない。
さらに、バネ部材としてはねじりバネ以外に、コイルバネをケーシング軸心で平面視が十字状等となるように向きを変えて複数配置することで、外側の発煙剤体に分散力を付与することもできる。よって、発煙剤体の中央に形成される貫通孔も、バネ部材の形態に合わせて円形等に適宜変更すればよい。 In addition, the torsion spring is not limited to a pair of cross shapes, and depending on the form of the smoke generating body, three or more can be arranged in a cross shape, and is not limited to an M shape. You may make it W shape, or may extend the free end which contact | abuts all the inner edges of a fuming agent body to an up-down direction. Moreover, when there are a plurality of torsion springs, it is not necessary to make a combination of the same shape, and for example, a combination of M and W may be used.
Furthermore, in addition to the torsion spring as the spring member, a plurality of coil springs may be arranged in different directions so as to have a cross-like shape when viewed from the top of the casing axis, thereby imparting a dispersion force to the outer smoke generator body. it can. Therefore, the through-hole formed in the center of the smoke generating body may be appropriately changed to a circular shape or the like according to the form of the spring member.

一方、発煙剤体も上記形態に限らず、４等分より多く周方向に分割してもよいし、逆に３分割以下としてもよい。厚みも適宜変更可能である。これらは規制板についても同様である。
但し、規制部材としては上記規制板の形状に限定するものではなく、線状体で形成したり、ねじりバネ等のバネ部材の端部を伸ばして直接ケーシングやガイドの内面に当接させてバネ部材と一体化したり等の設計変更も可能である。 On the other hand, the smoke generating agent body is not limited to the above form, and may be divided in the circumferential direction more than four equal parts, or conversely, it may be divided into three or less parts. The thickness can also be changed as appropriate. The same applies to the restriction plate.
However, the restricting member is not limited to the shape of the restricting plate, but is formed by a linear body, or the end of a spring member such as a torsion spring is extended to directly contact the inner surface of the casing or guide. Design changes such as integration with members are also possible.

そして、分散手段としては、上記バネ部材による以外に、例えば、ケーシング内の軸心に、外側の発煙剤体に爆発力によって分散力を付与可能な爆発体（火薬等）と、その爆発体の爆発を遅延させる保護部材とを配設したものとし、発射直後に遅延して爆発した爆発体によって発煙剤体の分散を図る構成も考えられる。
その他、受圧板やガイドは省略することもできる。また、発煙剤体でのバネ部材の圧縮規制が可能であれば、規制部材の省略も可能である。
As the dispersing means, in addition to the above-described spring member, for example, an explosive body (explosive or the like) capable of imparting a dispersing force to the outer smoke generating body by an explosive force on the axial center in the casing, and the explosive body A configuration in which a protective member for delaying the explosion is provided and the smoke generating material is dispersed by the explosive that has exploded and delayed immediately after the launch is also conceivable.
In addition, the pressure receiving plate and the guide can be omitted. Further, if the compression of the spring member with the smoke generating material is possible, the restriction member can be omitted.

発煙弾の中央縦断面図である。It is a center longitudinal cross-sectional view of a smoke bomb. Ａ−Ａ線断面図である（ケーシングは省略）。It is AA sectional view (a casing is abbreviate | omitted). 発射直後の状態を示す説明図である。It is explanatory drawing which shows the state immediately after discharge. 発煙剤体の分散状態を示す説明図である。It is explanatory drawing which shows the dispersion state of a smoke generating agent body.

符号の説明Explanation of symbols

１・・発煙弾、２・・ケーシング、３・・発射体、５・・発射薬、１２・・上蓋、１４・・受圧板、１７，１８・・発煙剤体、１９・・ガイド、２０，２３・・貫通孔、２４・・第一ねじりバネ、２５・・第二ねじりバネ、２９・・規制板、３１・・係止部。
1 .. Smoke bullets 2 .. Casing 3.. Projectile 5.. Propellant 12.. Upper lid 14.. Pressure plate 17 18 18 Smoke agent 19. 23 .. Through hole, 24... First torsion spring, 25.. Second torsion spring, 29.. Restricting plate, 31.

Claims (6)

底壁を有する筒状のケーシングと、そのケーシングの底壁に連設され、発射薬を有する発射体と、前記ケーシングの上部へ離脱可能に装着された上蓋と、前記ケーシングに内蔵された発煙剤体と、を備え、前記発射薬に点火することで、着火されて前記ケーシングから発射された前記発煙剤体が発煙しながら飛行して煙幕を展張可能とした発煙弾であって、
前記発煙剤体を、前記ケーシングの軸線回りの環状空間を周方向に分割する形状として層状に配置し、前記発煙剤体における前記ケーシングの軸心側に、発射された前記発煙剤体に発射方向と交差する方向への分散力を付与可能な分散手段を設けたことを特徴とする発煙弾。 A cylindrical casing having a bottom wall, a projectile having a propellant connected to the bottom wall of the casing, an upper lid removably attached to the upper portion of the casing, and a smoke generating agent incorporated in the casing A smoke bomb capable of spreading a smoke screen by flying while igniting and emitting the smoke agent body fired from the casing by igniting the propellant,
The smoke generating body is arranged in a layered manner so as to divide the annular space around the axis of the casing in the circumferential direction, and the firing direction of the fired smoke generating body on the axial side of the casing in the smoke generating body A smoke emitting bomb characterized by providing dispersion means capable of imparting a dispersion force in a direction intersecting with. 発煙剤体は、ケーシング軸線回りの環状空間を３つ以上に均等分割して多層状に配置される板状体である請求項１に記載の発煙弾。   2. The smoke bomb according to claim 1, wherein the smoke generating body is a plate-like body arranged in multiple layers by equally dividing the annular space around the casing axis into three or more. 分散手段は、ケーシングの軸心に配置され、復元力によって外側の発煙剤体に分散力を付与可能なバネ部材と、そのバネ部材を前記ケーシング内でのみ圧縮状態に規制する規制部材とからなる請求項１又は２に記載の発煙弾。   The dispersion means includes a spring member that is disposed at the axial center of the casing and can impart a dispersion force to the outer smoke generating body by a restoring force, and a restriction member that restricts the spring member to a compressed state only within the casing. The smoke bomb according to claim 1 or 2. バネ部材は、屈曲位置にねじり部を夫々設けたＭ字状又はＷ字状のねじりバネとして、ケーシングの軸心に一対の前記ねじりバネを前記ケーシングの軸線方向から見て十字状となるように配設した請求項３に記載の発煙弾。   The spring member is an M-shaped or W-shaped torsion spring provided with a torsion portion at a bending position, and is formed in a cross shape when the pair of torsion springs are viewed from the axial direction of the casing on the axial center of the casing. The smoke bomb according to claim 3 disposed. 規制部材は、上下の発煙剤体の間でケーシング軸線回りの環状空間を周方向に分割する形状で形成され、外周縁が前記ケーシングの内面側に当接する規制板であり、各規制板における前記ケーシング軸心側に、圧縮状態のバネ部材の端部を係止する係止部を形成した請求項３又は４に記載の発煙弾。   The restricting member is a restricting plate that is formed in a shape that divides the annular space around the casing axis line between the upper and lower smoke generating bodies in the circumferential direction, and an outer peripheral edge is in contact with the inner surface side of the casing. The smoke bomb according to claim 3 or 4, wherein a locking portion that locks an end portion of the compressed spring member is formed on the casing axis side. 分散手段の外側に位置する発煙剤体の発煙剤を速燃薬とした請求項１乃至５の何れかに記載の発煙弾。
The smoke bomb according to any one of claims 1 to 5, wherein the smoke generator of the smoke generator body located outside the dispersing means is a fast burner.
JP2006021679A 2006-01-31 2006-01-31 Smoke bomb Active JP4897299B2 (en)

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