EP2691731B1 - Projectile pour arme a letalite reduite - Google Patents

Projectile pour arme a letalite reduite Download PDF

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Publication number
EP2691731B1
EP2691731B1 EP11718435.8A EP11718435A EP2691731B1 EP 2691731 B1 EP2691731 B1 EP 2691731B1 EP 11718435 A EP11718435 A EP 11718435A EP 2691731 B1 EP2691731 B1 EP 2691731B1
Authority
EP
European Patent Office
Prior art keywords
core
base
projectile
projectile according
rear end
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP11718435.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2691731A1 (fr
Inventor
Marwan Dannawi
Jean-François JACQUET
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NOBEL SPORT
Original Assignee
NOBEL SPORT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NOBEL SPORT filed Critical NOBEL SPORT
Publication of EP2691731A1 publication Critical patent/EP2691731A1/fr
Application granted granted Critical
Publication of EP2691731B1 publication Critical patent/EP2691731B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B8/00—Practice or training ammunition
    • F42B8/12—Projectiles or missiles
    • 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
    • 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
    • F42B12/34—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect expanding before or on impact, i.e. of dumdum or mushroom type
    • 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
    • F42B12/72—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material
    • 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
    • F42B12/72—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material
    • F42B12/74—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the core or solid body
    • 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
    • F42B12/72—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material
    • F42B12/76—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the casing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B30/00—Projectiles or missiles, not otherwise provided for, characterised by the ammunition class or type, e.g. by the launching apparatus or weapon used
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B30/00—Projectiles or missiles, not otherwise provided for, characterised by the ammunition class or type, e.g. by the launching apparatus or weapon used
    • F42B30/04—Rifle grenades

Definitions

  • the present invention relates to projectiles for a weapon with reduced lethality, capable of impacting a target as would a violent punch while limiting the damage or trauma induced by this impact, particularly on the sensitive and unprotected areas of an individual (especially the head).
  • ALR Reduced Lethal Weapon projectiles are typically used by law enforcement and armed forces in external operations to neutralize or scare off certain individuals, while avoiding harm to them or minimizing injuries or injuries caused.
  • these ALR projectiles have a globally cylindrical shape whose length is of the order of 50 to 70 mm and whose diameter, as specified above, is of the order of 40 mm, with a front end in the form of a cap in general half spherical. They are conventionally made by thermoplastic foam molding.
  • the physical parameter that is important to impact from the point of view of lesional effects is the impact force on the target.
  • the main objective of the invention is to transmit at impact a programmed force which is always the same, or substantially the same, regardless of the terminal speed. , and correlatively regardless of the firing distance (this in conventional speed ranges at the time of impact (ie between about 50 to 100 m / s).
  • the base of the projectile is deformed during firing by the scratches of the barrel of the weapon which allows the rotation of the projectile.
  • the aluminum foam core is very lightweight and offers very interesting crushing and energy absorption characteristics, homogeneous and independent of the rate of deformation in all directions; the outer casing makes it possible to optimize the ballistic flight of the projectile and to attenuate the first projectile-target contact at the moment of impact.
  • the impact force of this projectile is constant or almost constant regardless of its speed (in conventional impact velocity ranges, especially between 50 and 100 m / s).
  • This impact force is in particular a function of the density of the aluminum foam, a parameter chosen according to the desired impact force.
  • the density of the aluminum foam used for the core of the ALR projectile according to the invention is between 30 and 300 kg / m 3 .
  • the projectile base is advantageously made of thermoplastic material and its thermoplastic foam envelope.
  • the transverse wall of the base is extended rearwardly by a tubular wall, centered on the longitudinal axis L, delimiting an opening rear cavity.
  • the transverse wall of the base is extended forward by a tubular extension, centered on the longitudinal axis L, to form a housing for receiving the rear end of the aluminum foam core.
  • said rear tubular wall, or said front tubular extension comprises an annular outer guide ring.
  • the transverse wall of the base is extended forward by an axial pin allowing the centering of the front part of the projectile.
  • the outer casing extends to the rear base to cover the entire exposed face of the core.
  • the rear end of the outer casing has an inwardly directed bead which penetrates an annular receiving groove in the aluminum foam core.
  • the front end of the base advantageously covers the rear end of the outer casing, to lock in position said bead in its receiving groove.
  • the front end of the base and the rear end of the outer casing preferably cooperate through complementary shoulders.
  • the core may comprise an axial recess opening into its rear face facing the front transverse wall of the base.
  • This recess allows in particular to program two levels of shock force by selecting two densities of aluminum foam. It can remain as is or be filled by a more or less dense aluminum foam, to program the severity of the shock.
  • the projectile comprises an annular narrowing between its front and rear ends, corresponding to a decrease in diameter, which narrows extends forwardly from the front end of the base.
  • This particularity is intended in particular to avoid contact of the base in inclined shock with the target.
  • the projectile according to the invention may comprise a reversible deformation material structure, interposed at the front, on the axis L, between the outer casing and the core.
  • This material may be a thermoplastic foam or consist of microbeads.
  • the base, the core and the outer shell of the projectile are made independently and they are assembled together by any appropriate means.
  • the ALR 1 projectile shown on Figures 1 and 2 has a generally cylindrical shape of longitudinal axis L. Its length can be of the order of 50 to 70 mm and its diameter of the order of 35 to 45 mm.
  • the rear end 2 of this projectile 1 ends in a plane perpendicular to the longitudinal axis L.
  • an axial recess 3 opening allows conventional reception of a pyrotechnic propulsion cartridge, or other mode of propulsion.
  • Its front end 4 is shaped spherical cap or approximately spherical.
  • This projectile symmetrical about its longitudinal axis L, consists of a rear base 5, extended forwardly by a core 6 whose outer face is substantially completely covered by an envelope 7.
  • the rear base 5 has a cylindrical tubular wall 8, centered on the axis L, which is closed at its front end by a transverse wall 9.
  • the tubular wall 8 is not closed towards the rear, and with the front transverse wall 9, it defines the axial recess 3 above.
  • tubular wall 8 comprises a one-piece annular ring 10 which projects outwardly.
  • the outer surface of this ring 10, of generally cylindrical shape, defines the maximum external size of the projectile and constitutes a guide face inside the barrel of the propulsion weapon.
  • the outer surface of the tubular wall 5 has a diameter a few millimeters smaller than that of the guide surface of the one-piece ring 10.
  • the transverse wall 9 of the base 5 comprises a cylindrical one-piece stud 12, centered on the axis L.
  • This post 12 has a diameter of about half the diameter of the projectile 1; its height is a few millimeters.
  • the base 5, comprising the tubular wall 8, the transverse wall 9, the ring 10 and the pin 12, is made in one piece by molding thermoplastic material (polycarbonate for example).
  • the density of the thermoplastic material used may be of the order of 1200 to 1600 kg / m 3 .
  • the core 6 of the projectile 1 has a generally cylindrical overall shape centered on the axis L.
  • Its rear end 13 has a diameter slightly smaller than the diameter of the guide surface of the ring 10 of the base 5, and its rear face 14 is structured to fit the front face of this base 5, with the pin 12.
  • this rear face 14 extends in the plane of the front face 11 of the base 5, and it comprises an axial reservation 15, corresponding to the shape of the post 12.
  • the front end 16 of the core 6 is in the form of a spherical or substantially spherical cap, centered on the axis L.
  • This core 6 may have a length of between 30 and 50 mm. It is made of aluminum foam (honeycomb aluminum structure) whose density is advantageously between 30 and 300 kg / m 3 . The length of the core 6 and the density of the aluminum foam used are a function of the desired impact force and the amount of energy to be absorbed.
  • the core 6 is made by molding or any other method of forming or machining the honeycomb materials.
  • Such a core structure 6 has the function of limiting to impact the predetermined shock force in advance during the absorption of energy, regardless of the shock velocity of the projectile.
  • the shape at the front of this honeycomb structure also makes it possible to maintain the rise time of the impact force, up to the nominal level, below the critical bursting value of the scalp, for example.
  • the rear end 13 of the core 6 is assembled with the front end 11, 12 of the base 5 by any appropriate means, for example by gluing.
  • the front end 16 of the core 6 is covered by the casing 7 advantageously made of thermoplastic foam; the density of this thermoplastic foam is advantageously between 100 and 150 kg / m 3 .
  • the casing 7 advantageously made of thermoplastic foam; the density of this thermoplastic foam is advantageously between 100 and 150 kg / m 3 .
  • rubber, an EPDM material or a nitrile-teflon (registered trademark) mixture may be used.
  • This outer casing 7 has a thickness of a few millimeters (for example 1 to 3 mm, advantageously of the order of 2 mm).
  • This envelope 7 tube-shaped closed at its front end by a spherical cap or substantially spherical, is fixed on the core 6 by any suitable means, for example by gluing.
  • the purpose of the envelope 7 is to improve the ballistic flight of the projectile, to avoid, at the first target-projectile contact, the local bursting of the biological material of the target and to allow pre-crushing of the honeycombed aluminum structure.
  • FIG 3 illustrates a variant embodiment of the projectile Figures 1 and 2 .
  • the parts identical to the previous embodiment retain the same marks to facilitate understanding.
  • the core 6 has a blind axial recess 20 which opens into its rear face 14.
  • This recess 20 preferably has a cylindrical shape whose diameter corresponds, with the game, to that of the axial pin 12 of the base 5 Its function is to make it possible to achieve during the shock a profile of impact force at two levels programmed in advance, according to the desired severity.
  • the recess 20 can be filled by an added material.
  • This added material may for example consist of a denser aluminum foam than that used for the periphery of the core 6, so as to increase the impact efficiency of the projectile.
  • the corresponding projectile 1 "has a rear base 5, extended forwards by a core 6 of aluminum foam whose outer face is covered by an envelope 7.
  • tubular wall 8 of the base 5 extends forwardly, beyond the transverse wall 9, by a tubular monobloc extension 21.
  • the guide ring 10 extends facing the transverse wall 9 of the base 5, on a portion of the tubular wall 8 and on the majority of the length of the extension 21.
  • This extension 21 and the wall 9 of the base 5 form a housing 22 for receiving the rear end 13 of the core 6.
  • the one-piece stud 12 of the previous embodiments is no longer present.
  • the core 6 and the base 5 are assembled by any appropriate means, preferably by gluing.
  • the envelope 7 covers the entire exposed surface of the core 6; it extends to the base 5, and in particular to the front end of the extension 21.
  • the embodiment of the Figures 4 and 5 is also distinguished from the previous, by the presence of a necking 23, corresponding to a decrease in diameter, between its rear ends 2 and before 4.
  • This necking 23 has the function of avoiding, in inclined impact of the projectile, the contact plastic-target base, thus avoiding a level of contact force incompatible with the programming of the efforts by the aluminum foam.
  • necking 23 gives the core 6 a particular longitudinal section, with a rear end 13 of cylindrical shape extended by a front end 16 in the form of bead or bulge, globally spherical.
  • the surface of the front end 4 of this projectile 1 is particular: the spherical end surface 4a is extended by a truncated cone surface 4b itself extended by a cylindrical surface 4c (whose diameter corresponds approximately to the diameter of the ring 10) which is further extended by a "reentrant" surface 4d leading to the constriction 23.
  • This particular shape of the front end 4 of the projectile 1 "makes it possible to calibrate the rate of rise in force (level of the force programmed on the time taken to reach it), thus avoiding the local bursting of the biological structures (scalp for example in cranial shock).
  • the figure 6 is a curve showing the variation of the force during the shock as a function of the shock time, for the projectiles 1 and 1 "of the Figures 1 and 2 , on the one hand, and 4 and 5 on the other.
  • the figure 7 shows the force-time variation for a dual-density projectile (as shown on the figure 3 ).
  • the level d is obtained by the peripheral foam of the nucleus, and the level e is defined by the central core foam whose density is greater than the peripheral foam.
  • the figure 8 illustrates yet another possible embodiment of a projectile according to the invention.
  • This projectile 1 "'has a rear base 5 which covers the rear part of a core 6 of aluminum foam whose outer face of the front part is covered by an envelope 7.
  • the casing 7 covers the front part of the core 6 to the base 5.
  • this envelope 7 comprises a bead 24 projecting inwards, which penetrates into a reservation or annular groove 25 formed in the core 6 of aluminum foam, ensuring the connection between the two elements 6 and 7.
  • This annular groove 25 of the core 6 extends in a plane perpendicular to the longitudinal axis L of the projectile 1 "'.
  • the casing 7 is placed on the front end of the core 6 by force fitting, thanks to the elasticity of the material constituting this casing 7.
  • the base 5 On its side, the base 5 has a rear transverse wall 9, extending forwards by a tubular monobloc extension 21 which covers the rear end 13 of the core 6 of aluminum foam.
  • the inner face of the transverse wall 9 is pressed against the rear face 14 of the core 6.
  • the outer face of the tubular extension 21 comprises the projecting guide ring 10.
  • the extension 21 has an annular shoulder 27 facing inwards. This annular shoulder 27 of the base 5 is complementary to the annular shoulder 26 of the envelope 7.
  • the base 5 is attached at the rear end of the core 6, after placement of the casing 7.
  • its annular shoulder 27 covers the complementary shoulder 26 of the casing 7, so as to lock the casing assembly 7 / core 6.
  • the base 5 is fixed on the rear end of the core 6 by any appropriate means, preferably by gluing.
  • the inner face of the tubular extension 21 preferably comprises ridges or a set of grooves / ribs that optimize the corresponding bonding.
  • the base 5 and the casing 7 are also secured together by gluing, at their complementary shoulders 26 and 27.
  • the outer faces of the front end of the base 5 and the rear end of the casing 7 are located in the continuity of one another.
  • the absence of bonding of the envelope 7 on the front end of the core 6 allows to leave the envelope 7 during crushing and to avoid, or at least limit, the contact between the base 5 and the target , shocks offset from the longitudinal axis L.
  • tubular wall 21 may extend, rearwardly, beyond the transverse wall 9, to form a rear opening cavity, like the cavity 3 present on the embodiments of the Figures 1 to 5 .
  • the front end of the core 6 may be truncated to allow the positioning of a structure 28 (shown in dotted lines) for damping impact shock.
  • This structure 28 can be reported between the casing 7 and the front end of the core 6; it is possible to use any damping material with reversible deformation, for example a thermoplastic foam of suitable hardness, or even microbeads (for example with a diameter of between 0.5 and 2 mm, made of elastomeric material or any other material with reversible deformation ).
  • any damping material with reversible deformation for example a thermoplastic foam of suitable hardness, or even microbeads (for example with a diameter of between 0.5 and 2 mm, made of elastomeric material or any other material with reversible deformation ).
  • the damping structure 28 can be obtained in one piece with the envelope 7, by the material constituting this envelope 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Vibration Dampers (AREA)
  • Elimination Of Static Electricity (AREA)
  • Toys (AREA)
  • Helmets And Other Head Coverings (AREA)
EP11718435.8A 2011-03-30 2011-03-30 Projectile pour arme a letalite reduite Active EP2691731B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FR2011/050701 WO2012131176A1 (fr) 2011-03-30 2011-03-30 Projectile pour arme a letalite reduite

Publications (2)

Publication Number Publication Date
EP2691731A1 EP2691731A1 (fr) 2014-02-05
EP2691731B1 true EP2691731B1 (fr) 2015-09-23

Family

ID=44626220

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11718435.8A Active EP2691731B1 (fr) 2011-03-30 2011-03-30 Projectile pour arme a letalite reduite

Country Status (10)

Country Link
US (1) US20140109790A1 (pt)
EP (1) EP2691731B1 (pt)
KR (1) KR101862435B1 (pt)
CN (1) CN103688130B (pt)
BR (1) BR112013025291B1 (pt)
ES (1) ES2556706T3 (pt)
RU (1) RU2555254C2 (pt)
SG (1) SG194090A1 (pt)
WO (1) WO2012131176A1 (pt)
ZA (1) ZA201307246B (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT512906B1 (de) * 2012-05-31 2013-12-15 Kurt Dipl Ing Peter Nicht-tödliches Geschoss
FR3010181B1 (fr) * 2013-08-30 2015-08-21 Nexter Munitions Projectile a letalite reduite
FR3027664B1 (fr) * 2014-10-23 2018-06-15 Nexter Munitions Projectile comportant des moyens anti ricochet
CN104677202B (zh) * 2015-02-06 2016-08-24 吴申龙 非杀伤性救援用电磁炮弹头
LU92734B1 (fr) * 2015-06-05 2016-12-06 Securinov Sa Projectile cinétique à haute déformation élastique
RU2602527C1 (ru) * 2015-07-27 2016-11-20 Геннадий Александрович Бидеев Патрон для бесствольного стрелкового оружия нелетального действия
US11287235B2 (en) * 2019-03-04 2022-03-29 General Dynamics Ordnance and Tactical Systems—Canada, Inc. Enhanced polymer marking projectile for nonlethal cartridge
US11287230B1 (en) * 2021-08-04 2022-03-29 Rama Technologies, LLC Less-than-lethal kinetic impact round
WO2023017497A1 (en) * 2021-08-13 2023-02-16 A.T. Cobra Projectile for a non-lethal weapon
CN114963885B (zh) * 2022-06-20 2023-11-24 中国人民武装警察部队工程大学 一种热压接封套式复合型非致命动能弹

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK1307700T3 (da) * 2000-07-28 2006-07-17 Richard Ian Brydges-Price Ikke-indtrængende projektil
RU2179700C1 (ru) * 2001-04-13 2002-02-20 Бидеев Геннадий Александрович Травматический патрон и травматический элемент для бесствольного оружия
US7383775B1 (en) * 2005-09-06 2008-06-10 The United States Of America As Represented By The Secretary Of The Navy Reactive munition in a three-dimensionally rigid state
US7287475B2 (en) * 2006-01-03 2007-10-30 Combined Systems, Inc. Reloadable non-lethal training cartridge
US7503260B2 (en) * 2006-02-15 2009-03-17 Defense Technology Corporation Of America Non-lethal ammunition
US20080178758A1 (en) * 2007-01-25 2008-07-31 Kapeles John A Frangible non-lethal projectile
EP2137484B1 (en) * 2007-04-01 2014-11-12 Sdi - Security Device International Inc. Non-lethal projectile
US8671841B2 (en) * 2008-05-07 2014-03-18 Securinov Sa Kinetic munition or projectile with controlled, non-lethal effects

Also Published As

Publication number Publication date
RU2013148139A (ru) 2015-05-10
RU2555254C2 (ru) 2015-07-10
BR112013025291A2 (pt) 2016-12-13
CN103688130B (zh) 2015-09-02
BR112013025291B1 (pt) 2020-10-13
US20140109790A1 (en) 2014-04-24
EP2691731A1 (fr) 2014-02-05
SG194090A1 (en) 2013-11-29
ES2556706T3 (es) 2016-01-19
KR20140045932A (ko) 2014-04-17
CN103688130A (zh) 2014-03-26
KR101862435B1 (ko) 2018-05-29
ZA201307246B (en) 2014-05-28
WO2012131176A1 (fr) 2012-10-04

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