EP4043826A1 - Plattenstapel und kugel- und/oder stichwaffenfester artikel mit einem solchen stapel - Google Patents

Plattenstapel und kugel- und/oder stichwaffenfester artikel mit einem solchen stapel Download PDF

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Publication number
EP4043826A1
EP4043826A1 EP22154032.1A EP22154032A EP4043826A1 EP 4043826 A1 EP4043826 A1 EP 4043826A1 EP 22154032 A EP22154032 A EP 22154032A EP 4043826 A1 EP4043826 A1 EP 4043826A1
Authority
EP
European Patent Office
Prior art keywords
panel
woven
sheets
stack
fibers
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.)
Pending
Application number
EP22154032.1A
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English (en)
French (fr)
Inventor
Florian Rejasse
Louis-André LE CARPENTIER
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.)
Protecop SA
Original Assignee
Protecop SA
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 Protecop SA filed Critical Protecop SA
Publication of EP4043826A1 publication Critical patent/EP4043826A1/de
Pending 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
    • F41H5/0471—Layered armour containing fibre- or fabric-reinforced layers
    • F41H5/0485—Layered armour containing fibre- or fabric-reinforced layers all the layers being only fibre- or fabric-reinforced layers
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D27/00—Details of garments or of their making
    • A41D27/24—Hems; Seams

Definitions

  • the present invention relates to an article resistant to bullets and/or bladed weapons, in particular of the needle type, in particular a protective garment against bullets, for example a bullet-proof vest, as well as to a stack of panels comprising fibers and intended to be used to resist bullets, in particular in a bullet-resistant article, in particular a garment, for example a bullet-proof vest.
  • a bulletproof vest comprising a stack of fibre-based panels, comprising at least a first panel, preferably arranged in the stack on the outer side (or opposite the body of the wearer of the resistant article to balls) and at least one second panel, the or each second panel comprising a woven fabric of aramid fibres, and a respective ply of thermoplastic material fixed to one face of the woven fabric, the fixing of the ply of thermoplastic material to the woven fiber being such that the web and the fabric form the second panel as a whole, while the first panel or each first panel consists of a plurality of sheets of nonwoven, fixed to each other.
  • a stack of panels comprising fibers and intended to be used to resist bullets, in particular in an article resistant to bullets, in particular clothing, for example a bulletproof vest, comprises:
  • At least a first panel consisting of a stack of nonwoven sheets, fixed to each other, in particular on the outside;
  • the at least one second woven panel in particular closer to the body than the or each first panel, in which the at least one second woven panel comprises a sheet of material woven from fibres, in particular aramid, covered with a lap of thermoplastic material , fixed to one face of the material woven with fibers of the at least one second panel, in particular the face on the side of the first panel or panels, the fastening of the ply of thermoplastic material to the material woven with fibers being such that the ply and the fiber woven material form a second panel as a whole; and is characterized in that there is provided, between the at least one first panel and the at least one second panel, at least one intermediate panel, distinct and different from the at least one first panel and from the at least one second panel, comprising at least one sheet of woven material, in particular a stack of sheets of woven material, in particular aramid, the woven material of the sheet or sheets of woven material comprising one or more woven part(s) with a satin weave and one or more several woven part
  • the sheets are held together by a system of stitching, preferably by aramid yarn, preferably left and right side stitching and at the level of the upper part of the panel, each side stitching extending in particular along a lying U comprising a base section arranged on the outside of the panel and two upper and lower sections, in particular parallel to each other and extending from the base section.
  • a system of stitching preferably by aramid yarn, preferably left and right side stitching and at the level of the upper part of the panel, each side stitching extending in particular along a lying U comprising a base section arranged on the outside of the panel and two upper and lower sections, in particular parallel to each other and extending from the base section.
  • double left and right side stitches the double left and right side stitches, respectively, extending parallel to each other, in particular in the form of two U lying parallel to each other, one of which is arranged at the inside the other.
  • diamond pitting is provided in the intermediate panel, namely a first series of rows of pitting, preferably parallel to each other, inclined from left to right with respect to the vertical, extending from the bottom of the panel towards the top of the panel and a second series of stitch lines, preferably parallel to each other, inclined from right to left with respect to the vertical extending from the bottom of the panel to the top of the panel, the two series of stitch lines intersecting to form between them diamonds or lozenges, in particular by forming between them an angle of between 70° and 110°.
  • the woven material(s) of the second panel(s) is/are made of a woven material with a solid weave.
  • At least one third panel consisting of a stack non-woven sheets.
  • At least one fourth panel consisting of a stack of nonwoven sheets.
  • the number of nonwoven sheets of the or each first panel is between 5 and 25, in particular between 10 and 20, for example 12 sheets.
  • the or each third panel comprises between 10 and 30 sheets of nonwoven, preferably between 15 and 24, for example 19 sheets.
  • the or each fourth nonwoven panel comprises between 7 and 12 sheets, for example 9 sheets.
  • the nonwoven sheets of the first panel(s) and/or of the third panel(s) and/or of the fourth panels each comprise(s) two consolidated cross plies of monodirectional fibers, at 90 degrees from one another, in particular cross plies of polyethylene fibers consolidated, for example by a matrix made of a polymer material, in particular thermoplastic.
  • the lap of thermoplastic material is not a film, having in particular a thickness greater than 0.1 mm, preferably greater than 0.2 mm, in particular greater than 0.3 mm, even more preferably greater than 0 .4 mm, for example between 0.5 mm and 5 mm.
  • the or a first panel is on the outer side and the or a fourth panel is on the opposite side, that is to say on the side of the body.
  • a single second panel is provided.
  • the single second panel comprises a single sheet or layer of woven fabric, in particular with a solid weave, in particular in aramid, and a ply of thermoplastic material.
  • a single fourth panel is provided, preferably comprising between 5 and 20 sheets, in particular between 7 and 12 sheets and even more preferably, the single fourth panel and the single second panel, in particular the single second panel comprising a single sheet, are held together by stitching, in particular close to the peripheral edges of the two panels, in particular by two left and right side stitching and a central top stitching.
  • a matrix is understood to mean a material which in particular binds the fibers, for example of aramid or polyethylene, of each of the plies of aramid fibers, in particular aligned one-way, and thus stabilizes the fibers inside of the or each of the fiber plies and, after possible interlacing of the fiber plies, binds them to each other.
  • crossed or intersecting plies an arrangement of at least two plies of unidirectional aligned fibers, in which the at least two plies of unidirectional aligned fibers are bonded to each other so that the fibers aligned two folds make an angle, preferably 90 °.
  • consolidated ply(ies) is meant the fact that the fibers of the ply or plies, in particular aligned in one direction, are held together, in particular linked to each other by adding a matrix material, by their covering by two films, by a surface treatment, for example enzyming, or by a combination of two or more of these techniques.
  • fibers an oblong body, the length dimension of which is much greater than a transverse dimension in width and in thickness.
  • fibers include fibers or monofilaments, multifilament fibers, slivers, tapes, staple fibers and yarns made from one or more of the foregoing examples, for example multifilament yarns or short fiber base.
  • fibers mean multifilament yarns.
  • the cross-sections of the fibers to be used in the present invention can vary widely. They can be circular, flat, oblong in cross section. They can also be regular or irregular in shape, having a plurality of regular or irregular lobes protruding from the longitudinal axis, for example a filament.
  • the fibers have a substantially circular cross-section.
  • aramid fibers fibers produced from an aromatic polyamide as the fiber-forming polymer.
  • the polymer forming the fibre at least 85% of the amide bonds (-CO-NH-) are directly linked to two aromatic crowns.
  • P-aramid aromatic polyamides Particularly preferred are P-aramid aromatic polyamides.
  • poly(p-phenyleneterephthalamide) is the most preferred.
  • Poly(p-phenyleneterephthalamide) results from the mole-to-mole polarization of p-phenylenediamine and terephthalic acid dichloride.
  • Fibers, consisting for example of multifilament yarns made from poly(p-phenyleneterephthalamide) can be obtained under the TWARON brand or the KEVLAR brand.
  • aramid fibers useful for forming the fabrics or fiber plies in the panels of ballistic resistant articles according to the present invention are those formed from the aromatic copolymer as the fiber forming polymer.
  • a p-phenylene diamine and/or a terephthalic acid dichloride are partially or completely substituted with other aromatic diamines and/or dicarboxylic acid chlorides.
  • the term "consolidated ply" means the fact that the fibers of the ply or plies, in particular aligned in one direction, are held together, in particular linked to each other by adding a matrix material, by covering them with two films or by a combination of the two techniques.
  • the present invention also relates to a bullet-resistant article, in particular a garment, for example a bullet-proof vest, comprising a stack of panels comprising fibers according to the invention.
  • the bulletproof vest 10 comprises a stack of panels, namely a first panel 1 consisting of 12 sheets of non-woven material, in particular polyethylene (PE), a second panel 2, consisting of a sheet or layer 6 of woven solid aramid coated with a ply 7 of thermoplastic material, a third panel 3 of 19 sheets or layers of non-woven material, in particular Polyethylene (PE), a fourth panel 4 of 9 sheets or layers of non-woven material, in particular Polyethylene ( PE) and an intermediate panel 5 of 5 sheets or layers of aramid weave consisting of a weave mixed satin and full, arranged between the first and second panels, in particular between the first and third panels.
  • PE polyethylene
  • PE Polyethylene
  • PE Polyethylene
  • PE Polyethylene
  • PE Polyethylene
  • PE Polyethylene
  • PE Polyethylene
  • PE Polyethylene
  • PE Polyethylene
  • PE Polyethylene
  • PE Polyethylene
  • PE Polyethylene
  • PE Polyethylene
  • PE Polyethylene
  • PE Polyethylene
  • PE Polyethylene
  • PE Polyethylene
  • PE Polyethylene
  • the panels and the sheets constituting the panels have a substantially rectangular shape of appropriate size to cover the front face of the bust of a vest wearer incorporating within it the stack of panels.
  • the panels and leaflets each have a rectangular main central part and two lower left and right side tabs projecting from the rectangular main part.
  • the first panel is on the outer side and the fourth panel is on the opposite side, i.e. on the side of the body.
  • the leaves of the first, third and fourth panels are identical. However, one could also use different fibers and/or arrangements, in particular in terms of number of plies, material, resin, matrix, consolidation, consolidation film, respective arrangement of the plies, etc. .
  • the full woven sheet 6 may in particular be TWARON 2040, 930dTex f1000, having a density of 13.9 and a weight of 480 g/m 2 .
  • thermoplastic material in particular vinyl, for example polyvinyl butyral
  • an adhesive for example an EVA polymer film or the like
  • Another favorable material for the sheet 7 is polypropylene (PP).
  • PP polypropylene
  • the thickness of the sheet 7 is greater than that of the woven sheet 6 to which it is fixed.
  • the thickness of the web 7 of thermoplastic material of the second panel 2 is greater than 0.1 mm and may in particular be between 0.5 and 5 mm, in particular between 1 and 4 mm.
  • the woven sheet 6 has a thickness which may be between 0.1 and 5 mm, in particular between 0.2 and 1 mm, for example equal to 0.25 mm, the total thickness of the second panel 2 possibly being for example comprised between 0.4 and 0.85 mm.
  • the fourth panel 4 which is closest to the body, is held together with the second panel 2 by a system of stitching 20 on the side and 21 at the top.
  • Each side stitch is made 2 cm from the edge of the two panels 2 and 4 which it links together and each comprises an upper section 22, a side section 23 and a lower section 24, the two sections 22 and 24 being perpendicular to the section 23 side.
  • the upper and lower sections 22 and 24 extend over substantially the entire lateral extension of the left and right side tabs of the two panels 2 and 4, having a pitch of 0.4 cm, the intermediate section 23 extending over the extension in height of each of the side tabs, between the two upper and lower sections 22 and 24, having a pitch of 0.4 cm.
  • the top stitching 21 is made 2 cm from the upper edge of the two panels 2 and 4 which it links together. It extends centrally with respect to panels 2 and 4, over 5 cm, with a stitch pitch of 0.4 cm.
  • each panel can have a basis weight between 75 and 260 g/m2. It can be made of polyethylene, in particular of high density, but can also be made of aramid or other similar material.
  • the thermoplastic material of the web 7 is preferably not very or not elastic.
  • an elastomer for example a rubber, is not a thermoplastic material within the meaning of the invention.
  • elastic material means a material such as a film or a web, consisting solely of this material, which is elastic. Elasticity is the physical property of a body to return to its initial shape after removal of the stress.
  • the term "elastic film or web” means a film or web which has, according to the elasticity test below, a remanence or SET of less than 20%, preferably less than 15%, more preferably less than 10 %, Again more preferably less than 5% for a stretch of 100% of its initial width.
  • the sample is prepared by cutting the product (for example the lap of the invention or the film) with a cutter or scissors into a sample 45 mm wide and 60 mm long (direction in which the elasticity is measured).
  • the intermediate panel 5 consists of a stack of sheets or layers of woven fabric, in particular aramid, in particular of 2 to 10 sheets, even more preferably of 3 to 7 sheets, for example 5 sheets or layers.
  • Each sheet or layer of the intermediate panel comprises parts or zones 40 woven with a satin weave and parts or zones 41 woven with a solid weave, preferably according to an area ratio of 30/70 to 70/30, even more preferably according to a ratio of 40/60 to 60/40, even more preferably a mixture with a ratio of 50/50, as in the example panel shown in figure 4 .
  • each sheet or layer of woven aramid of the intermediate panel 5 can be made in the form of a checkerboard of checks, each square of the checkerboard being made alternately with a so-called full weave or a so-called satin weave.
  • a checkerboard of (10 x 10) squares is provided.
  • satin weaves are made with a square weave ratio of at least 3 to 8 warp threads, i.e. 3 to 8 warp threads, and a clearance of at least 2, in particular a satin of 5 with a clearance of 2.
  • a full weave consists of a regular interlacing of warp and weft yarns, a warp yarn passing alternately under a weft yarn then over the next weft yarn and a weft yarn passing alternately under a warp yarn then onto the next warp thread.
  • Each side stitch is made 2 cm from the edge of the panel 5 and each comprises an upper section 32, a side section 33 and a lower section 34, the two sections 32 and 34 being perpendicular to the side section 33.
  • the upper and lower sections 32 and 34 extend over substantially the entire lateral extension of the left and right side tabs of the panel 5, having a pitch of 0.4 cm, the intermediate section 33 extending over the extension in height of each of the side tabs, between the two upper and lower sections 32 and 34, having a pitch of 0.4 cm.
  • the top stitch 31 is made 2 cm from the upper edge of the panel 5. It extends centrally with respect to the panel 5, over 5 cm, with a stitch pitch of 0.4 cm.
  • All the panels 1 to 5 are held together by a system of stitches positioned 1cm from the peripheral edge of the panels which they hold together, the stitching system comprising two upper lateral sections 36 and 37 3 cm long with a pitch stitch of 0.4 cm and a lower central section 38 6 cm long with a stitch pitch of 0.4 cm.
  • FIG. 5 there is shown another intermediate panel 5' according to the invention which can advantageously replace the intermediate panel 5 of the embodiments shown in the preceding figures.
  • the intermediate panel 5' consists of a stack of sheets or layers of woven fabric, in particular aramid, in particular of 2 to 10 sheets, even more preferably of 3 to 7 sheets, for example 5 sheets or layers.
  • Each sheet or layer of the intermediate panel comprises parts or zones 40 woven with a satin weave and parts or zones 41 woven with a solid weave, preferably according to an area ratio of 30/70 to 70/30, even more preferably according to a ratio of 40/60 to 60/40, even more preferably a mixture with a ratio of 50/50, as in the example panel shown in figure 4 .
  • each sheet or layer of woven fabric in aramid of the intermediate panel 5′ can be made in the form of a checkerboard of squares, each square of the checkerboard being made alternately with a so-called solid weave or a so-called satin weave.
  • a checkerboard of (10 x 10) squares with 1cm sides is provided.
  • the superposition of the checkerboards in the stack of the five sheets forming the intermediate panel can be carried out randomly. Thus, it is not necessary that in the stacking, one ensures that solid tiles are stacked one above the other while the satin tiles are also stacked, nor on the contrary that one alternates in the same vertical satin and full squares. In addition, a certain offset of the tiles from one sheet to another in the stack can be provided.
  • satin weaves are made with a square weave ratio of at least 3 to 8 warp threads, i.e. 3 to 8 warp threads, and a clearance of at least 2, in particular a satin of 5 with a clearance of 2.
  • a full weave consists of a regular interlacing of warp and weft yarns, a warp yarn passing alternately under a weft yarn then over the next weft yarn and a weft yarn passing alternately under a warp yarn then onto the next warp thread.
  • first 30' and second 30" side and high 31 stitches are held together by a system of first 30' and second 30" side and high 31 stitches.
  • Each first side stitch 30' is made 2.5 cm from the edge of the panel 5' and comprises each an upper section, a lateral section and a lower section, the two upper and lower sections being perpendicular to the lateral section.
  • each second side stitching 30" is made 3.5 cm from the edge of the panel 5' and each comprises an upper section, a side section and a lower section, the two upper and lower sections being perpendicular to the side section.
  • the upper and lower sections of the first and second stitches 30' and 30" extend over substantially the entire lateral extension of the left and right side tabs of the panel 5', having a pitch of 0.4 cm, the section 33 intermediate extending over the extension in height of each of the side legs, between the two upper and lower sections, having a pitch of 0.4 cm.
  • the top stitching 31 is made 2 cm from the upper edge of the panel 5'. It extends centrally with respect to the 5' panel, over 5 cm, with a stitch pitch of 0.4 cm.
  • diamond pits consisting of pit lines 50 inclined upwards to the right and pit lines 60 inclined upwards to the left, which intersect the lines of pits 50 so as to form lozenges or diamonds, in particular 4cm by 4cm, with an angle comprised between in particular between 70° and 110°, for example squares at 90°.
  • the stitch lines 50 and 60 extend while being inclined at an angle of, for example, respectively between -35° and -50°, for example -45°, and between 35° and 50°, for example 45°, by relative to the weft threads and the warp threads of the woven fabrics forming the sheets of the intermediate panel 5', having a pitch of 0.42cm.
  • stitch lines 50 and 60, as well as the double stitches 30' and 30" pass alternately on one side, then on the other, of the panel 5' formed of the five sheets.
  • Diamond stitching 50, 60 and/or double side stitching 30', 30" could also be provided for the intermediate panel 5 shown in figure 2 .
  • All the panels 1 to 5 are held together by a system of stitches positioned 1cm from the peripheral edge of the panels which they hold together, the stitching system comprising two upper lateral sections 36 and 37 3 cm long with a pitch stitch of 0.4 cm and a lower central section 38 6 cm long with a stitch pitch of 0.4 cm.
  • the yarns of the stitches can be yarns with three filaments of 207Dtex each. Satin/plain woven yarns can be 930Dtex yarns. In this embodiment, the yarns of the stitches can have a smaller Dtex than the yarns of the satin/plain wovens, but the opposite could also be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Laminated Bodies (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Woven Fabrics (AREA)
EP22154032.1A 2021-02-10 2022-01-28 Plattenstapel und kugel- und/oder stichwaffenfester artikel mit einem solchen stapel Pending EP4043826A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2101282A FR3119673A1 (fr) 2021-02-10 2021-02-10 Empilement de panneaux et article résistant aux balles et/ou aux armes blanches comportant un empilement de ce genre

Publications (1)

Publication Number Publication Date
EP4043826A1 true EP4043826A1 (de) 2022-08-17

Family

ID=76730601

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22154032.1A Pending EP4043826A1 (de) 2021-02-10 2022-01-28 Plattenstapel und kugel- und/oder stichwaffenfester artikel mit einem solchen stapel

Country Status (3)

Country Link
EP (1) EP4043826A1 (de)
BR (1) BR102022000845A2 (de)
FR (1) FR3119673A1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6319862B1 (en) * 1999-07-19 2001-11-20 Paul Czetto, Jr. Protective multilayer armor construction
WO2011088355A2 (en) * 2010-01-14 2011-07-21 E. I. Du Pont De Nemours And Company Shaped body armor and method of making
WO2014062414A1 (en) * 2012-10-16 2014-04-24 Matscitechno Licensing Company Impact dissipating fabric
WO2015070330A1 (en) * 2013-11-14 2015-05-21 Barrday Inc. Rigid and semi-rigid composites incorporating woven multi-layer fabrics
EP3457075A1 (de) 2017-09-13 2019-03-20 Protecop Kugel- und/oder stichwaffensicherer artikel, insbesondere kugelsichere weste, die einen stapel von faserplatten enthält

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6319862B1 (en) * 1999-07-19 2001-11-20 Paul Czetto, Jr. Protective multilayer armor construction
WO2011088355A2 (en) * 2010-01-14 2011-07-21 E. I. Du Pont De Nemours And Company Shaped body armor and method of making
WO2014062414A1 (en) * 2012-10-16 2014-04-24 Matscitechno Licensing Company Impact dissipating fabric
WO2015070330A1 (en) * 2013-11-14 2015-05-21 Barrday Inc. Rigid and semi-rigid composites incorporating woven multi-layer fabrics
EP3457075A1 (de) 2017-09-13 2019-03-20 Protecop Kugel- und/oder stichwaffensicherer artikel, insbesondere kugelsichere weste, die einen stapel von faserplatten enthält

Also Published As

Publication number Publication date
BR102022000845A2 (pt) 2022-08-23
FR3119673A1 (fr) 2022-08-12

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