EP0592821B1 - Sprengschutzmatte - Google Patents

Sprengschutzmatte Download PDF

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Publication number
EP0592821B1
EP0592821B1 EP93114717A EP93114717A EP0592821B1 EP 0592821 B1 EP0592821 B1 EP 0592821B1 EP 93114717 A EP93114717 A EP 93114717A EP 93114717 A EP93114717 A EP 93114717A EP 0592821 B1 EP0592821 B1 EP 0592821B1
Authority
EP
European Patent Office
Prior art keywords
explosion
layers
composite plate
matrix
mat
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
EP93114717A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0592821A1 (de
Inventor
Hans Böhne
Michael Mohr
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.)
Teijin Aramid GmbH
Clouth Gummiwerke AG
Acordis AG
Original Assignee
Clouth Gummiwerke AG
Akzo Nobel Faser AG
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 Clouth Gummiwerke AG, Akzo Nobel Faser AG filed Critical Clouth Gummiwerke AG
Publication of EP0592821A1 publication Critical patent/EP0592821A1/de
Application granted granted Critical
Publication of EP0592821B1 publication Critical patent/EP0592821B1/de
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
    • F41H5/0442—Layered armour containing metal
    • F41H5/0457—Metal layers in combination with additional layers made of fibres, fabrics or plastics
    • 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
    • F41H5/0478—Fibre- or fabric-reinforced layers in combination with plastics layers
    • 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
    • F41H7/00—Armoured or armed vehicles
    • F41H7/02—Land vehicles with enclosing armour, e.g. tanks
    • F41H7/04—Armour construction
    • F41H7/042—Floors or base plates for increased land mine protection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/911—Penetration resistant layer

Definitions

  • the invention relates to an explosion protection mat, in particular for protecting the wall of passenger compartments of vehicles, consisting of several layers of antiballistic textile fabrics, which are embedded in a matrix in accordance with the shape of the wall, and a method for producing these explosion protection mats.
  • Explosion protection mats or explosion protection layers of this type are known, for example for cladding the floor area of armored vehicles.
  • Antiballistic textile fabrics for example aramid fabric, are used in the manufacture, as are also known from the manufacture of bulletproof vests.
  • aramid fabric is used in the manufacture, as are also known from the manufacture of bulletproof vests.
  • approximately six layers of aramid fabric are placed on the floor panel of the vehicle and then cast with a resin to form a matrix embedding the fabric layers in order to prevent moisture absorption by the fabric. This is done by hand and is also time-consuming, since it can take several days for the resin to set completely and no further work is possible inside the vehicle during this time.
  • an explosion protection layer has sufficient resistance to projectiles and bomb or shell fragments due to the aramid fabric, it is not sufficiently rigid to absorb the compressive forces generated in the event of an explosion.
  • the vehicle floor can bulge by more than 30 cm with the known explosion protection layer, creating a great risk of injury to the occupants.
  • Explosion protection layers made of pressed packages of glass fiber reinforced plastic with a thickness of approximately 12 mm are also known, which have sufficient rigidity to absorb the explosion pressure.
  • the disadvantage of these explosive protection layers lies in their high weight of approximately 24 kg / m 2 and in the fact that for the manufacture of the GRP packages following the shape of the vehicle floor, a separate, relatively expensive form is required for each vehicle type.
  • WO 91/07275 discloses a protective element for aircraft in which a composite panel consisting of a honeycomb structure is embedded between two fiber-reinforced plastic layers.
  • the layers consist of very strong plastic, e.g. Epoxy resin.
  • the protective elements are perforated so that the detonation pressure is not completely stopped.
  • DE-29 27 653 A1 discloses a bulletproof protective element for motor vehicles, among other things, in which the textile fabrics are embedded in a matrix with thermosetting plastics that harden by cooling, for example polyethylene, polyamide, polypropylene, and between them a relatively thin hard layer of metal or ceramic is arranged.
  • the thin hard layer increases the security of these elements against penetration, but does not provide a high resistance (bending stiffness) that prevents bulging of the flat element.
  • the object of the invention is to provide an explosive protection mat which, with low weight and low manufacturing expenditure, has a sufficiently high protective effect against projectiles, mines, bombs and grenade fragments and the detonation pressure.
  • the matrix consists of a flexible setting material, in particular rubber, and that between two inner layers of the textile fabric a rigid composite plate arranged parallel to the main plane of the wall, consisting of a honeycomb structure or corrugated structure provided with two outer layers , is arranged.
  • the explosion protection mat can be removed from the production mold when they are finished and installed as a molded part in the passenger compartment of the vehicle.
  • the explosion protection mat is given the necessary strength to absorb the detonation pressure forces.
  • the rigid composite plate preferably consists of a honeycomb structure made of plastic or aluminum and provided with two cover layers. Alternatively, a corrugated structure made of plastic or aluminum can be used to form the composite panel two cover layers.
  • this second construction is only rigid in one direction.
  • a composite plate with a thickness of 5 - 20 mm is sufficient for sufficient absorption of the detonation pressure forces.
  • the detonation pressure under the specified test conditions results in a deformation of an armored vehicle floor of this type of less than 10 cm, that is to say approximately 1/3 of the deformation of the aramid fabric cast in plastic.
  • the explosion protection mat produced in this way has a weight of less than 6 kg / m 2 and therefore offers a considerable weight reduction compared to the known GRP packages.
  • the textile fabric of the explosion protection mat is preferably an aramid fabric.
  • Aramid fabrics with Panama weave and the same strength in the weft and warp direction have proven particularly effective. Since the aramid fabric also achieves part of its antiballistic effect through elastic deformation, the larger number of fabrics should preferably be arranged between the composite panel and the passenger compartment. The layers arranged between the vehicle wall and the composite panel cannot greatly delay the projectiles and fragments because they cannot yield elastically.
  • the cavities in this area can be foamed with a plastic.
  • Another object of the invention is to provide a less complex and inexpensive method for producing the explosion protection mat.
  • the insertion of the layers of antiballistic fabric and the composite panel in the manufacturing mold can be automated will.
  • the setting time is integrated in the manufacturing process for the explosion protection mat and therefore does not delay the work on the armor of the vehicle.
  • the production creates a molded part that can be quickly attached and attached to the corresponding area of the passenger compartment.
  • rubber is used as the matrix material, which is vulcanized after inserting the rubberized flat structures and the composite plate into the production mold in an autoclave at a pressure of about 7 bar and a temperature of about 150 ° C.
  • the sheet metal forming the vehicle wall can be used as the production mold, and no expensive production of a special mold is necessary.
  • a composite plate 3 is arranged between these layers and consists of a honeycomb structure and two cover plates connected to it.
  • the composite plate 3 is arranged only on the floor level of the floor panel 1, above which the seat for the vehicle occupants is arranged. In the areas to the side of it, such as on the right the cardan tunnel and on the left the area reinforced by the door sill, great flexural rigidity of the explosion protection mat is less important.
  • the rigid intermediate layer of the composite plate 3 ' is formed by a corrugated or zigzag plate made of aluminum or plastic, which is firmly connected to two cover layers. Since the composite panel 3 'in FIG. 2 only rests on the ribs in the vehicle floor panel 1 following areas of the layers 2 of the fabric, the gaps are foamed with a plastic 4 to prevent vibrations of the composite panel 3'.
  • FIGS. 1 and 2 also correspond to the mold arrangements which can be pushed into an autoclave during the manufacture of the explosion protection mat for vulcanization.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Laminated Bodies (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Inorganic Insulating Materials (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
EP93114717A 1992-10-12 1993-09-14 Sprengschutzmatte Expired - Lifetime EP0592821B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4234369A DE4234369C1 (de) 1992-10-12 1992-10-12 Sprengschutzmatte
DE4234369 1992-10-12

Publications (2)

Publication Number Publication Date
EP0592821A1 EP0592821A1 (de) 1994-04-20
EP0592821B1 true EP0592821B1 (de) 1996-10-30

Family

ID=6470274

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93114717A Expired - Lifetime EP0592821B1 (de) 1992-10-12 1993-09-14 Sprengschutzmatte

Country Status (9)

Country Link
US (1) US5517894A (da)
EP (1) EP0592821B1 (da)
JP (1) JPH06201298A (da)
AT (1) ATE144826T1 (da)
DE (2) DE4234369C1 (da)
DK (1) DK0592821T3 (da)
ES (1) ES2093897T3 (da)
GR (1) GR3022176T3 (da)
IL (1) IL107099A (da)

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US20040237763A1 (en) * 2003-06-02 2004-12-02 Ashok Bhatnagar Corrugated ballistic armor
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AU2010201270A1 (en) * 2009-04-07 2010-10-21 Plasan Sasa Ltd. Safety apparatus for providing protection against an explosion and vehicle comprising same
US8656822B1 (en) * 2009-04-20 2014-02-25 Armorworks Enterprises, Llc Ballistic floor blanket
FR2954260B1 (fr) * 2009-12-23 2012-12-21 Tencate Advanced Armour Dispositf de renforcement
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Also Published As

Publication number Publication date
JPH06201298A (ja) 1994-07-19
US5517894A (en) 1996-05-21
ES2093897T3 (es) 1997-01-01
ATE144826T1 (de) 1996-11-15
EP0592821A1 (de) 1994-04-20
IL107099A (en) 1997-03-18
IL107099A0 (en) 1994-07-31
DK0592821T3 (da) 1997-04-01
DE59304354D1 (de) 1996-12-05
DE4234369C1 (de) 1994-03-17
GR3022176T3 (en) 1997-03-31

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