EP0943886B1 - Blindage léger pour la défense contre les projectiles d'armes à feu - Google Patents

Blindage léger pour la défense contre les projectiles d'armes à feu Download PDF

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Publication number
EP0943886B1
EP0943886B1 EP99104654A EP99104654A EP0943886B1 EP 0943886 B1 EP0943886 B1 EP 0943886B1 EP 99104654 A EP99104654 A EP 99104654A EP 99104654 A EP99104654 A EP 99104654A EP 0943886 B1 EP0943886 B1 EP 0943886B1
Authority
EP
European Patent Office
Prior art keywords
assembly according
front body
lightweight
brittle
composite
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.)
Expired - Lifetime
Application number
EP99104654A
Other languages
German (de)
English (en)
Other versions
EP0943886A2 (fr
EP0943886A3 (fr
Inventor
Yehoshua Yeshurun
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.)
Rafael Advanced Defense Systems Ltd
Original Assignee
Rafael Advanced Defense Systems Ltd
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 Rafael Advanced Defense Systems Ltd filed Critical Rafael Advanced Defense Systems Ltd
Publication of EP0943886A2 publication Critical patent/EP0943886A2/fr
Publication of EP0943886A3 publication Critical patent/EP0943886A3/fr
Application granted granted Critical
Publication of EP0943886B1 publication Critical patent/EP0943886B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0407—Transparent bullet-proof laminatesinformative reference: layered products essentially comprising glass in general B32B17/06, e.g. B32B17/10009; manufacture or composition of glass, e.g. joining glass to glass C03; permanent multiple-glazing windows, e.g. with spacing therebetween, E06B3/66
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer

Definitions

  • the present invention is in the field of armor against regular and armor piercing firearm projectiles and their fragments, and aims at providing lightweight armor suitable for a variety of purposes such as, for example, for making protective garments, for fitting enclosures with opaque or transparent armored wall portions and the like.
  • the present invention is directed to a lightweight armor assembly as defined in the preamble of the appended claim 1.
  • Such assemblies are known e.g. from US-A-3 389 406 and US-A-2 318 301, and are based on the observation that if a slanting body is put in the path of a firearm projectile, the latter is subjected to asymmetric forces which cause the projectile to be diverted from its trajectory in the direction of the obtuse angle formed between the trajectory and the body.
  • the projectile may also be broken up, and all this has the result that the projectile can easily be stopped either by the said body or by rear body.
  • the slanting front body of these assemblies is made of high modulus material, such as glass or ceramics in US-A-3 380 406, and metals in US-A-2 318 301.
  • front body and rear body nerely refer to the relative positions of the two bodies, and do not exclude an additionnal, non-slanted front panel as shown in figure 4.
  • the armor assembly according to the invention may comprise two or more front bodies.
  • the low modulus, brittle, lightweight material used in accordance with the present invention may be transparent or opaque and be either soft or hard. Where out of the two complementary angles formed between the trajectory of the firearm projectile and the surface of said at least one front body the upper angle is obtuse and the lower one is acute, the impinging firearm projectile is deflected upward. In contrast, where the lower angle is obtuse and the upper one is acute, an impinging firearm projectile is deflected downward.
  • a transparent front body is preferably also transparent.
  • a transparent front body may be made of PMMA (perspex), various synthetic materials such as polycarbonates, epoxy resins, PVC and the like.
  • An opaque front body may be made of a heavy duty cloth material such as of KevlarTM, SpectraTM, and various epoxy materials and the like. Such materials may be used in soft pliable form or in composite hardened form, e.g. by being soaked with a suitable polymeric material which hardens upon curing.
  • the front body in the lightweight armor assembly according to the invention may be a monoblock, i.e. be made of a single material. Alternatively, it may be laminated and made of two or more layers of the same material or be composite and be made of two or more layers of different materials. In either case adjacent layers are suitably glued or cemented to each other.
  • the individual layers may be slanted relative to the expected trajectory of an oncoming firearm projectile.
  • an oncoming firearm projectile penetrates across the said at least one front body and when it emerges therefrom, either intact or broken up, it is deflected either upwards or downwards depending on the slant of the front body relative to the trajectory, and does not penetrate across the rear body. In case of a thick front body the projectile may be deflected without hitting at all the rear body.
  • the required impact resistance of the rear body is much less than in the prior art.
  • its weight per unit area may be about half of that of a prior art body which has to be resistant to the full impact of an oncoming firearm projectile.
  • FIG. 1 there is shown schematically an assembly comprising a slanted lightweight front panel 1 and a vertical rear panel 2 .
  • Arrow 3 stands for an oncoming firearm projectile and as can easily be concluded from the figure, the trajectory of the projectile 3 is essentially normal to the vertical rear panel and of the two angles formed at the intersection of the trajectory of projectile 3 with panel 1, the upper angle is obtuse.
  • the projectile 3 once the projectile 3 has penetrated across panel 1 it is diverted upwards as shown at 4, either as a whole or broken up, and it either does not at all hit the vertical rear panel 2, or else is readily intercepted by it without passing across.
  • Fig. 3 which is essentially similar to that in Fig. 1 with similar components again being marked by the same numerals, panel 1 is sheathed by sheets 8 and 9 of a different lightweight material. Basically this embodiment operates in a similar way as the embodiment of Fig. 1.
  • FIG. 4 The embodiment shown schematically in Fig. 4 comprises a front panel 10 , a lightweight material block 11 composed of a plurality of slanting plates 12 glued or cemented together, and a vertical rear panel 13. In its passage across block 11 the firearm projectile 3 is diverted by any of the plates 12 which it hits on its way, and it accordingly does not penetrate the rear panel 13.
  • the lightweight front and rear panels may be transparent or opaque, according to requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Laminated Bodies (AREA)

Claims (12)

  1. Ensemble d'armure légère résistant contre la pénétration de projectiles tirés par une arme à feu, comprenant au moins un corps avant (1 ; 5) s'étendant incliné par rapport à une trajectoire escomptée d'un projectile provenant d'une arme à feu (3), et un corps arrière (2) s'étendant essentiellement normalement par rapport à ladite trajectoire escomptée ; caractérisé en ce que ledit au moins un corps avant (1 ; 5) est réalisé dans une matière légère, cassante, à faible module, comme du PMMA , des polycarbonates, des résines époxy, du PVC et similaires.
  2. Ensemble d'armure légère selon la revendication 1, l'ensemble étant transparent.
  3. Ensemble selon la revendication 2, dans lequel ledit au moins un corps avant est réalisé dans une matière sélectionnée à partir du groupe des matières organiques.
  4. Ensemble d'armure légère selon la revendication 1, l'ensemble étant opaque.
  5. Ensemble selon la revendication 4, dans lequel ladite matière légère, cassante, à faible module est une matière en tissu pour usage sévère.
  6. Ensemble d'armure légère selon l'une quelconque des revendications 1 à 5, dans lequel ledit au moins un corps avant est un bloc d'un seul tenant.
  7. Ensemble selon la revendication 6, dans lequel ledit au moins un corps avant est un corps composite.
  8. Ensemble selon la revendication 7, dans lequel le corps avant composite est réalisé dans une pluralité de différentes matières légères, cassantes, transparentes et à faible module.
  9. Ensemble selon la revendication 8, dans lequel le corps avant composite est réalisé dans une pluralité de différentes matières légères, cassantes, opaques et à faible module.
  10. Ensemble selon la revendication 7, dans lequel le corps avant composite est réalisé dans une matière en tissu pour usage sévère.
  11. Ensemble selon la revendication 9, dans lequel ladite matière en tissu pour usage sévère est imprégnée d'une matière polymère appropriée qui durcit lorsqu'elle sèche.
  12. Ensemble d'armure légère selon l'une quelconque des revendications 1 à 5, dans lequel ledit au moins un corps avant se présente sous la forme d'un bloc à couches multiples dans lequel les couches individuelles sont inclinées par rapport à la trajectoire escomptée d'un projectile provenant d'une arme à feu, et dans lequel les couches multiples sont collées ou cimentées les unes aux autres, de façon appropriée.
EP99104654A 1998-03-20 1999-03-09 Blindage léger pour la défense contre les projectiles d'armes à feu Expired - Lifetime EP0943886B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IL12376498 1998-03-20
IL12376498 1998-03-20
IL12419098 1998-04-23
IL124190A IL124190A (en) 1998-03-20 1998-04-23 Lightweight armor against firearm projectiles

Publications (3)

Publication Number Publication Date
EP0943886A2 EP0943886A2 (fr) 1999-09-22
EP0943886A3 EP0943886A3 (fr) 1999-10-13
EP0943886B1 true EP0943886B1 (fr) 2003-09-03

Family

ID=26323614

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99104654A Expired - Lifetime EP0943886B1 (fr) 1998-03-20 1999-03-09 Blindage léger pour la défense contre les projectiles d'armes à feu

Country Status (3)

Country Link
EP (1) EP0943886B1 (fr)
DE (1) DE69910869T2 (fr)
IL (1) IL124190A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL162351A (en) * 2004-06-03 2013-01-31 Rafael Advanced Defense Sys Passive armor assembly including an armor member made of brittle material
DE102009040305B4 (de) * 2009-09-05 2012-01-05 Rheinmetall Landsysteme Gmbh Schutzeinrichtung gegen Projektil bildende Ladungen

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2318301A (en) * 1939-03-15 1943-05-04 Us Rubber Co Bullet resisting armor
US3380406A (en) * 1965-04-28 1968-04-30 Whittaker Corp Composite design for transparent armour
BE791470A (fr) * 1971-11-16 1973-03-16 Oasis Vacuum Glazing Ltd Perfectionnements relatifs aux fenetres
DE2815582A1 (de) * 1977-12-31 1980-03-06 Harry Apprich Mehrschicht-panzerung, insbesondere aus kleinkoerpern bestehend
CH643650A5 (en) * 1978-07-11 1984-06-15 Kuka Wehrtechnik Gmbh Cast light-alloy armour, especially for load-bearing external parts, such as gun-turret hatches
US4633528A (en) * 1984-07-30 1987-01-06 Brandt Raymond W Bullet affecting/deflecting material
EP0287918A1 (fr) * 1987-04-13 1988-10-26 Cemcom Corporation Matériau de blindage céramique formé par liaison chimique
WO1992020520A1 (fr) * 1991-05-24 1992-11-26 Allied-Signal Inc. Composites souples comprenant des panneaux rigides separes et articles fabriques a l'aide de ces derniers
DE4237798C2 (de) * 1992-11-03 1995-12-07 Ela Bs Ges Fuer Besondere Sich Panzerung
FR2731512B1 (fr) * 1995-03-06 1997-04-30 Giat Ind Sa Panneau de blindage transparent
DE19548338C2 (de) * 1995-12-22 1999-02-25 Daimler Benz Ag Panzerscheibenaufbau für ein Sicherheitskraftfahrzeug

Also Published As

Publication number Publication date
IL124190A0 (en) 1999-03-12
IL124190A (en) 2006-12-31
EP0943886A2 (fr) 1999-09-22
DE69910869D1 (de) 2003-10-09
DE69910869T2 (de) 2004-05-06
EP0943886A3 (fr) 1999-10-13

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