JP2021071246A - warhead - Google Patents
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- JP2021071246A JP2021071246A JP2019198653A JP2019198653A JP2021071246A JP 2021071246 A JP2021071246 A JP 2021071246A JP 2019198653 A JP2019198653 A JP 2019198653A JP 2019198653 A JP2019198653 A JP 2019198653A JP 2021071246 A JP2021071246 A JP 2021071246A
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- warhead
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- explosive charge
- inner member
- recess
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- 239000002360 explosive Substances 0.000 claims abstract description 37
- 238000005474 detonation Methods 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
Description
本開示は、弾殻と、弾殻の内部に充填される炸薬とを備えた弾頭に関するものである。 The present disclosure relates to a warhead with a shell and an explosive charge filled inside the shell.
特許文献１には、弾殻と、弾殻の内部に充填される炸薬とを備えた弾頭が開示されている。 Patent Document 1 discloses a warhead including a bullet shell and an explosive charge filled inside the bullet shell.
ところで、特許文献１のような弾頭において、炸薬を起爆させると、炸薬の爆轟の衝撃圧によって弾殻が複数の破片に破断して飛散する。このときの弾殻の破断位置を調整したいという要望がある。 By the way, when an explosive is detonated in a warhead as in Patent Document 1, the shell is broken into a plurality of fragments and scattered by the impact pressure of the detonation of the explosive. There is a desire to adjust the breaking position of the shell at this time.
本開示の目的は、弾頭の爆発時における弾殻の破断位置を調整することにある。 An object of the present disclosure is to adjust the breaking position of the shell when the warhead explodes.
第１の態様は、弾殻（11）と、弾殻（11）の内部に充填される炸薬（13）とを備えた弾頭であって、上記弾殻（11）と上記炸薬（13）との間には、金属製の内側部材（12）が介在し、上記内側部材（12）には、内側に凹む凹部（12a）が上記炸薬（13）の爆轟の衝撃圧によって変形して外側に飛び出し、上記弾殻（11）の内面にノッチ（N）を形成するように設けられていることを特徴とする。 The first aspect is a warhead including a shell (11) and an explosive charge (13) filled inside the shell (11), the shell (11) and the explosive charge (13). A metal inner member (12) is interposed between the inner member (12), and a recess (12a) recessed inward is deformed by the impact pressure of the detonation of the explosive charge (13) to the outer side of the inner member (12). It is characterized in that it is provided so as to form a notch (N) on the inner surface of the bullet shell (11).
第１の態様では、ノッチ（N）形成箇所で弾殻（11）が破断しやすくなるので、凹部（12a）の配置により、弾頭（10）の爆発時における弾殻（11）の破断位置を調整できる。 In the first aspect, since the bullet shell (11) is likely to break at the notch (N) forming portion, the breaking position of the bullet shell (11) at the time of explosion of the warhead (10) is determined by arranging the recess (12a). Can be adjusted.
第２の態様は、第１の態様において、上記内側部材（12）は、プレス成形品である。 In the second aspect, in the first aspect, the inner member (12) is a press-molded product.
第２の態様では、内側部材（12）をプレス成形により製造して弾殻（11）に収容し、炸薬（13）を起爆させるだけで、弾殻（11）の内面にノッチ（N）を形成できる。したがって、弾殻（11）の内面にノッチ（N）を形成するための切削作業が不要なので、弾頭（10）の製造を容易にするとともに製造コストを削減できる。 In the second aspect, the inner member (12) is manufactured by press molding, housed in the shell (11), and the explosive charge (13) is simply detonated to form a notch (N) on the inner surface of the shell (11). Can be formed. Therefore, since the cutting work for forming the notch (N) on the inner surface of the bullet shell (11) is unnecessary, the warhead (10) can be easily manufactured and the manufacturing cost can be reduced.
第３の態様は、第１又は第２の態様において、上記凹部（12a）は、その立体角が３πステラジアン以下の球状であることを特徴とする。 A third aspect is characterized in that, in the first or second aspect, the recess (12a) has a spherical shape having a solid angle of 3π steradian or less.
第３の態様では、爆轟の衝撃圧が、凹部（12a）の凹み方向に対して傾斜する方向から作用しても、凹部（12a）が外側に飛び出しやすい。したがって、炸薬（13）を起爆する起爆装置（14）の配置の自由度を向上できる。 In the third aspect, even if the detonation impact pressure acts from the direction of inclination with respect to the recessing direction of the recess (12a), the recess (12a) tends to pop out to the outside. Therefore, the degree of freedom in arranging the detonator (14) that detonates the explosive charge (13) can be improved.
第４の態様は、第１〜３の態様の何れか１つにおいて、上記凹部（12a）は、上記内側部材（12）に複数点在していることを特徴とする。 A fourth aspect is characterized in that, in any one of the first to third aspects, a plurality of the recesses (12a) are scattered on the inner member (12).
第４の態様では、凹部（12a）の間隔及び位置関係により、破裂後の弾殻（11）の破片の大きさ及び形状を調整できる。 In the fourth aspect, the size and shape of the debris of the bullet shell (11) after rupture can be adjusted by the spacing and positional relationship of the recesses (12a).
第５の態様は、第１又は第２の態様において、上記凹部（12a）は、中心角が１．５πラジアン以下の円弧状の断面形状で延びていることを特徴とする。 A fifth aspect is characterized in that, in the first or second aspect, the recess (12a) extends in an arcuate cross-sectional shape having a central angle of 1.5π radians or less.
第５の態様では、爆轟の衝撃圧が、凹部（12a）の凹み方向に対して凹部（12a）の幅方向に傾斜する方向から作用しても、凹部（12a）が外側に飛び出しやすい。したがって、炸薬（13）を起爆させる起爆装置（14）の配置の自由度を向上できる。 In the fifth aspect, even if the impact pressure of the detonation acts from the direction of inclining in the width direction of the recess (12a) with respect to the recess direction of the recess (12a), the recess (12a) tends to pop out to the outside. Therefore, the degree of freedom in arranging the detonator (14) for detonating the explosive charge (13) can be improved.
第６の態様は、第１〜５の態様の何れか１つにおいて、上記弾殻（11）と上記炸薬（13）との間に介在する上記内側部材（12）は、１部材であることを特徴とする。 In the sixth aspect, in any one of the first to fifth aspects, the inner member (12) interposed between the bullet shell (11) and the explosive charge (13) is one member. It is characterized by.
第６の態様では、弾殻（11）と炸薬（13）との間に内側部材（12）を複数部材介在させた場合に比べ、内側部材（12）を弾殻（11）に収容する作業が容易なので、弾頭（10）の製造を容易にするとともに製造コストを削減できる。 In the sixth aspect, the work of accommodating the inner member (12) in the shell (11) as compared with the case where a plurality of inner members (12) are interposed between the shell (11) and the explosive charge (13). Is easy, so the warhead (10) can be easily manufactured and the manufacturing cost can be reduced.
以下、本発明の実施形態を図面に基づいて詳細に説明する。なお、以下で説明する実施形態および変形例は、本質的に好ましい例示であって、本発明、その適用物、あるいはその用途の範囲を制限することを意図するものではない。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the embodiments and modifications described below are essentially preferred examples and are not intended to limit the scope of the present invention, its applications, or its uses.
《実施形態１》
図１は、本発明の実施形態１に係る弾頭（10）を示す。この弾頭（10）は、図２に示すようなミサイル（1）に搭載されている。以下、ミサイル（1）の後方を「後方」、ミサイル（1）の前方（進行方向）を「前方」と呼ぶ。
<< Embodiment 1 >>
FIG. 1 shows a warhead (10) according to the first embodiment of the present invention. This warhead (10) is mounted on a missile (1) as shown in FIG. Hereinafter, the rear of the missile (1) is referred to as "rear", and the front (direction of travel) of the missile (1) is referred to as "forward".
弾頭（10）は、略円筒形の弾殻（11）を備えている。弾殻（11）は、アルミニウムや鋼等の金属で構成される。弾殻（11）は、後方に解放する有底円筒形の本体部（11a）と、当該本体部（11a）の解放側を塞ぐように本体部（11a）に後方から取り付けられ、前方に解放する略有底円筒形の取付部（11b）とを有している。本体部（11a）の解放側端部の外周面には、雄ねじ部（図示せず）が設けられ、取付部（11b）の解放側端部の内周面には、雌ねじ部（図示せず）が設けられている。本体部（11a）の雄ねじ部を、取付部（11b）の雌ねじ部に螺合締結することで、本体部（11a）及び取付部（11b）が一体に組み付けられている。なお、本体部（11a）と取付部（11b）の組み付け方法はこれに限定されない。 The warhead (10) has a substantially cylindrical shell (11). The shell (11) is made of a metal such as aluminum or steel. The bullet shell (11) is attached to the bottomed cylindrical main body (11a) that is released rearward and the main body (11a) so as to block the release side of the main body (11a), and is released forward. It has a substantially bottomed cylindrical mounting part (11b). A male screw portion (not shown) is provided on the outer peripheral surface of the release side end portion of the main body portion (11a), and a female screw portion (not shown) is provided on the inner peripheral surface of the release side end portion of the mounting portion (11b). ) Is provided. The main body portion (11a) and the mounting portion (11b) are integrally assembled by screwing and fastening the male screw portion of the main body portion (11a) to the female screw portion of the mounting portion (11b). The method of assembling the main body portion (11a) and the mounting portion (11b) is not limited to this.
弾殻（11）の本体部（11a）の内側の外周端部には、図３〜図５にも示すように、両端が解放する略円筒状の内側部材（12）が配設されている。内側部材（12）は、銅、アルミ、ニッケル、鉄等の純金属で構成される。この内側部材（12）には、内側に凹む半球状の複数の凹部（12a）が設けられている。これら複数の凹部（12a）は、図６にも示すように、格子状に規則的に点在している。つまり、内側部材（12）を平坦に広げた状態で、各凹部（12a）は、格子（正方形）の頂点に位置するようになっている。この内側部材（12）は、金属製の平板に、パンチングプレス用の金型を用いたプレス成形により凹部（12a）を形成した後、平板全体を円筒状に曲げることによって製造できる。 As shown in FIGS. 3 to 5, a substantially cylindrical inner member (12) whose both ends are open is arranged at the outer peripheral end portion inside the main body portion (11a) of the bullet shell (11). .. The inner member (12) is made of a pure metal such as copper, aluminum, nickel, and iron. The inner member (12) is provided with a plurality of hemispherical recesses (12a) recessed inward. As shown in FIG. 6, these plurality of recesses (12a) are regularly scattered in a grid pattern. That is, with the inner member (12) spread flat, each recess (12a) is located at the apex of the grid (square). The inner member (12) can be manufactured by forming a recess (12a) on a metal flat plate by press molding using a punching press die, and then bending the entire flat plate into a cylindrical shape.
内側部材（12）の内部全体には、炸薬（13）が充填されている。 The entire inside of the inner member (12) is filled with the explosive charge (13).
取付部（11b）の内部には、炸薬（13）を起爆させる起爆装置（14）が収容されている。起爆装置（14）は、起爆薬等を内蔵した電気***等で構成される。起爆装置（14）の配置は、図１に例示した配置に限られない。 Inside the mounting portion (11b) is a detonator (14) that detonates the explosive charge (13). The detonator (14) is composed of an electric detonator or the like containing a detonator or the like. The arrangement of the detonator (14) is not limited to the arrangement illustrated in FIG.
起爆装置（14）は、起爆コントローラ（2）に接続されている。起爆コントローラ（2）は、ミサイル（1）に内蔵され、起爆装置（14）に炸薬（13）の起爆を行わせる。 The detonator (14) is connected to the detonator controller (2). The detonator controller (2) is built into the missile (1) and causes the detonator (14) to detonate the explosive charge (13).
次に、上述のように構成された弾頭（10）の動作を説明する。 Next, the operation of the warhead (10) configured as described above will be described.
起爆コントローラ（2）が起爆装置（14）に炸薬（13）の起爆を行わせると、まず、炸薬（13）の爆轟の衝撃圧によって内側部材（12）の凹部（12a）がメタルジェット化して斜め前方外周側（図３における矢印Ｘで示す方向）に変形して飛び出して弾殻（11）の本体部（11a）の内面に、外周側に凹むノッチ（N）を形成する。図３中、ノッチ（N）を二点鎖線で示す。このとき、爆轟の衝撃圧が、凹部（12a）の凹み方向（内側部材（12）の板面に対して垂直な方向）に対して前方に傾斜する方向から作用するが、凹部（12a）を球状としたので、円錐状等とした場合に比べ、凹部（12a）をより確実に外側に飛び出させることができる。このように、炸薬（13）の爆轟の衝撃圧が内側部材（12）の板面に対して垂直な方向から凹部（12a）に作用するように起爆装置（14）を配置しなくてもよいので、起爆装置（14）の配置の自由度を向上できる。 When the detonator controller (2) causes the detonator (14) to detonate the explosive charge (13), first, the concave portion (12a) of the inner member (12) becomes a metal jet due to the impact pressure of the detonation of the explosive charge (13). It deforms diagonally forward to the outer peripheral side (direction indicated by the arrow X in FIG. 3) and pops out to form a notch (N) recessed on the outer peripheral side on the inner surface of the main body portion (11a) of the shell (11). In FIG. 3, the notch (N) is indicated by a chain double-dashed line. At this time, the impact pressure of the detonation acts from the direction in which the recess (12a) is inclined forward with respect to the recess direction (the direction perpendicular to the plate surface of the inner member (12)), but the recess (12a) Since the shape of the shape is spherical, the concave portion (12a) can be more reliably projected to the outside as compared with the case where the shape is conical or the like. In this way, even if the detonator (14) is not arranged so that the detonation pressure of the explosive charge (13) acts on the recess (12a) from the direction perpendicular to the plate surface of the inner member (12). Since it is good, the degree of freedom in arranging the detonator (14) can be improved.
その後、炸薬（13）の爆轟の衝撃圧によってさらに弾殻（11）が破裂する。このとき、ノッチ（N）形成箇所に応力が集中し、当該ノッチ（N）形成箇所を起点として格子状に弾殻（11）が破断する。 After that, the impact pressure of the detonation of the explosive charge (13) causes the shell (11) to burst further. At this time, stress is concentrated on the notch (N) forming portion, and the bullet shell (11) is broken in a grid pattern starting from the notch (N) forming portion.
本実施形態１によると、凹部（12a）によって形成されたノッチ（N）形成箇所で弾殻（11）が破断しやすくなるので、凹部（12a）の配置により、弾頭（10）の爆発時における弾殻（11）の破断位置を調整できる。 According to the first embodiment, the shell (11) is likely to break at the notch (N) forming portion formed by the recess (12a). Therefore, the arrangement of the recess (12a) allows the warhead (10) to explode. The breaking position of the shell (11) can be adjusted.
また、内側部材（12）がプレス成形品であるので、内側部材（12）をプレス成形により製造して弾殻（11）に収容し、炸薬（13）を起爆させるだけで、弾殻（11）の内面にノッチ（N）を形成できる。したがって、弾殻（11）の内面にノッチ（N）を形成するための切削作業が不要なので、弾頭（10）の製造を容易にするとともに製造コストを削減できる。 Further, since the inner member (12) is a press-molded product, the inner member (12) is manufactured by press molding, housed in the shell (11), and the explosive charge (13) is detonated. ) Can form a notch (N) on the inner surface. Therefore, since the cutting work for forming the notch (N) on the inner surface of the bullet shell (11) is unnecessary, the warhead (10) can be easily manufactured and the manufacturing cost can be reduced.
また、複数の凹部（12a）の間隔及び位置関係により、破裂後の弾殻（11）の破片の大きさ及び形状を調整できる。 In addition, the size and shape of the fragments of the bullet shell (11) after rupture can be adjusted by the spacing and positional relationship of the plurality of recesses (12a).
また、弾殻（11）と炸薬（13）との間に内側部材（12）を１部材だけ介在させたので、内側部材（12）を複数部材介在させた場合に比べ、内側部材（12）を弾殻（11）に収容する作業が容易である。したがって、弾頭（10）の製造を容易にするとともに製造コストを削減できる。 Further, since only one inner member (12) is interposed between the bullet shell (11) and the explosive charge (13), the inner member (12) is compared with the case where a plurality of inner members (12) are interposed. Is easy to house in the shell (11). Therefore, the warhead (10) can be easily manufactured and the manufacturing cost can be reduced.
《実施形態１の変形例》
上記実施形態１では、凹部（12a）を半球状に設けたが、その立体角が３πステラジアン以下の他の球状に設けてもよい。また、図７に示すように、凹部（12a）を円錐状に設けるとともに、より確実に弾殻（11）にノッチ（N）を形成するために、炸薬（13）の爆轟の衝撃圧が凹部（12a）の凹み方向（内側部材（12）の板面に対して垂直な方向）から凹部（12a）に作用するように起爆装置（14）を配置してもよい。
<< Modification of Embodiment 1 >>
In the first embodiment, the concave portion (12a) is provided in a hemispherical shape, but the concave portion (12a) may be provided in another spherical shape having a solid angle of 3π steradian or less. Further, as shown in FIG. 7, the impact pressure of the detonation of the explosive charge (13) is increased in order to provide the concave portion (12a) in a conical shape and more reliably form the notch (N) in the shell (11). The detonator (14) may be arranged so as to act on the recess (12a) from the recess direction of the recess (12a) (the direction perpendicular to the plate surface of the inner member (12)).
《実施形態２》
図８は、実施形態２の図６相当図である。本実施形態２では、図９及び図１０にも示すように、凹部（12a）が、中心角がπラジアン（１８０度）の円弧状の断面形状で、格子の線上を間欠的に延びている。起爆コントローラ（2）が起爆装置（14）に炸薬（13）の起爆を行わせると、ノッチ（N）が凹部（12a）の長手方向に沿う溝状に弾殻（11）に形成される。そして、弾殻（11）は、溝状のノッチ（N）形成箇所を境界として破断する。このとき、炸薬（13）の爆轟の衝撃圧が、一部の凹部（12a）の凹み方向（内側部材（12）の板面に対して垂直な方向）に対して凹部（12a）の幅方向に傾斜する方向（図９中、矢印Ｙで示す方向）から作用するが、凹部（12a）を円弧状の断面形状としたので、Ｖ字状等の断面形状とした場合に比べ、凹部（12a）が外側に飛び出しやすい。このように、炸薬（13）の爆轟の衝撃圧が内側部材（12）の板面に対して垂直な方向から凹部（12a）に作用するように起爆装置（14）を配置しなくてもよいので、炸薬（13）の起爆装置（14）の配置の自由度を向上できる。
<<
FIG. 8 is a diagram corresponding to FIG. 6 of the second embodiment. In the second embodiment, as shown in FIGS. 9 and 10, the recess (12a) has an arcuate cross-sectional shape with a central angle of π radians (180 degrees) and extends intermittently on the line of the grid. .. When the detonator controller (2) causes the detonator (14) to detonate the explosive charge (13), a notch (N) is formed in a groove-like shell (11) along the longitudinal direction of the recess (12a). Then, the bullet shell (11) breaks at the groove-shaped notch (N) forming portion as a boundary. At this time, the impact pressure of the detonation of the explosive charge (13) is the width of the recess (12a) with respect to the recess direction of a part of the recess (12a) (the direction perpendicular to the plate surface of the inner member (12)). It acts from the direction inclined in the direction (the direction indicated by the arrow Y in FIG. 9), but since the concave portion (12a) has an arcuate cross-sectional shape, the concave portion (the concave portion (12a) has a cross-sectional shape such as a V shape. 12a) is easy to pop out. In this way, even if the detonator (14) is not arranged so that the detonation pressure of the explosive charge (13) acts on the recess (12a) from the direction perpendicular to the plate surface of the inner member (12). Therefore, the degree of freedom in arranging the detonator (14) of the explosive charge (13) can be improved.
《実施形態２の変形例》
上記実施形態２では、凹部（12a）を中心角がπラジアン（１８０度）の円弧状の断面形状としたが、 中心角が１．５πラジアン以下の他の円弧状の断面形状としてもよい。また、Ｖ字状の断面形状としてもよい。
<< Modification of
In the second embodiment, the concave portion (12a) has an arcuate cross-sectional shape having a central angle of π radians (180 degrees), but another arcuate cross-sectional shape having a central angle of 1.5 π radians or less may be used. Further, it may have a V-shaped cross-sectional shape.
《その他の変形例》
なお、上記実施形態１，２及びそれらの変形例では、弾殻（11）と炸薬（13）との間に内側部材（12）を１部材だけ介在させたが、複数部材介在させてもよい。
<< Other variants >>
In the first and second embodiments and the modified examples thereof, only one inner member (12) is interposed between the bullet shell (11) and the explosive charge (13), but a plurality of members may be interposed. ..
また、凹部（12a）の形状及び配置は、上記実施形態１，２及びそれらの変形例のものに限定されない。例えば、凹部（12a）として、内側部材（12）の軸方向及び周方向に連続して延びる複数の溝部や、内側部材（12）の周方向に延びる螺旋状の溝部を設けてもよい。炸薬（13）の爆発時、弾殻（11）を軸方向に引っ張る力は、周方向に引っ張る力に比べて小さいが、凹部（12a）を上述のように螺旋状に設けることにより、弾殻（11）を軸方向に細かく破断できる。 Further, the shape and arrangement of the recess (12a) are not limited to those of the above-described first and second embodiments and their modifications. For example, as the recess (12a), a plurality of groove portions extending continuously in the axial direction and the circumferential direction of the inner member (12) or a spiral groove portion extending in the circumferential direction of the inner member (12) may be provided. When the explosive charge (13) explodes, the force that pulls the shell (11) in the axial direction is smaller than the force that pulls it in the circumferential direction. (11) can be broken finely in the axial direction.
また、上記実施形態１，２及びそれらの変形例では、内側部材（12）を筒状としたが、その他の形状としてもよい。例えば、全長に亘って断面Ｖ字状又は断面半球状の溝状の凹部（12a）が設けられた帯状の部材を、凹部（12a）の凹み方向が内側となるように螺旋状に巻回させたものとしてもよい。 Further, in the above-described first and second embodiments and their modified examples, the inner member (12) has a tubular shape, but other shapes may be used. For example, a band-shaped member provided with a groove-shaped recess (12a) having a V-shaped cross section or a hemispherical cross section over the entire length is spirally wound so that the recessing direction of the recess (12a) is inward. It may be a spiral.
以上説明したように、本発明は、弾殻と、弾殻の内部に充填される炸薬とを備えた弾頭について有用である。 As described above, the present invention is useful for warheads that include a bullet shell and an explosive charge that fills the shell.
１０ 弾頭
１１ 弾殻
１２ 内側部材
１２ａ 凹部
１３ 炸薬
10 warheads
11 shell
12 Inner member
12a recess
13 Explosives
Claims (6)
上記弾殻（11）と上記炸薬（13）との間には、金属製の内側部材（12）が介在し、
上記内側部材（12）には、内側に凹む凹部（12a）が上記炸薬（13）の爆轟の衝撃圧によって変形して外側に飛び出し、上記弾殻（11）の内面にノッチ（N）を形成するように設けられていることを特徴とする弾頭。 A warhead with a shell (11) and an explosive charge (13) filled inside the shell (11).
A metal inner member (12) is interposed between the bullet shell (11) and the explosive charge (13).
In the inner member (12), a concave portion (12a) recessed inward is deformed by the impact pressure of the detonation of the explosive charge (13) and protrudes outward, and a notch (N) is formed on the inner surface of the bullet shell (11). A warhead characterized by being provided to form.
上記内側部材（12）は、プレス成形品であることを特徴とする弾頭。 In the warhead according to claim 1,
The inner member (12) is a warhead characterized by being a press-molded product.
上記凹部（12a）は、その立体角が３πステラジアン以下の球状であることを特徴とする弾頭。 In the warhead according to claim 1 or 2.
The recess (12a) is a warhead characterized in that its solid angle is spherical with a solid angle of 3π steradian or less.
上記凹部（12a）は、上記内側部材（12）に複数点在していることを特徴とする弾頭。 In the warhead according to any one of claims 1 to 3,
The warhead is characterized in that the recesses (12a) are scattered in a plurality of the inner members (12).
上記凹部（12a）は、中心角が１．５πラジアン以下の円弧状の断面形状で延びていることを特徴とする弾頭。 In the warhead according to claim 1 or 2.
The recess (12a) is a warhead characterized in that the central angle extends in an arcuate cross-sectional shape of 1.5π radians or less.
上記弾殻（11）と上記炸薬（13）との間に介在する上記内側部材（12）は、１部材であることを特徴とする弾頭。 In the warhead according to any one of claims 1 to 5,
A warhead characterized in that the inner member (12) interposed between the bullet shell (11) and the explosive charge (13) is one member.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3820464A (en) * | 1973-03-09 | 1974-06-28 | Us Navy | Variable sized fragment explosive projectile |
| JPS5584288A (en) * | 1978-12-21 | 1980-06-25 | Inst Elektroswarki Patona | Extension molding chemical installing tool |
| US4312274A (en) * | 1977-01-17 | 1982-01-26 | Whittaker Corporation | Method for selecting warhead fragment size |
| US7451704B1 (en) * | 2003-03-20 | 2008-11-18 | The United States Of America As Represented By The Secretary Of The Army | Multifunctional explosive fragmentation airburst munition |
| JP2011075251A (en) * | 2009-10-01 | 2011-04-14 | Daikin Industries Ltd | Warhead part |
| WO2019177500A1 (en) * | 2018-03-14 | 2019-09-19 | Bae Systems Bofors Ab | Pre-fragmentation of a warhead |
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2019
- 2019-10-31 JP JP2019198653A patent/JP7397297B2/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3820464A (en) * | 1973-03-09 | 1974-06-28 | Us Navy | Variable sized fragment explosive projectile |
| US4312274A (en) * | 1977-01-17 | 1982-01-26 | Whittaker Corporation | Method for selecting warhead fragment size |
| JPS5584288A (en) * | 1978-12-21 | 1980-06-25 | Inst Elektroswarki Patona | Extension molding chemical installing tool |
| US7451704B1 (en) * | 2003-03-20 | 2008-11-18 | The United States Of America As Represented By The Secretary Of The Army | Multifunctional explosive fragmentation airburst munition |
| JP2011075251A (en) * | 2009-10-01 | 2011-04-14 | Daikin Industries Ltd | Warhead part |
| WO2019177500A1 (en) * | 2018-03-14 | 2019-09-19 | Bae Systems Bofors Ab | Pre-fragmentation of a warhead |
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| JP7397297B2 (en) | 2023-12-13 |
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