EP0409453B1 - Sicherheitswandstruktur - Google Patents

Sicherheitswandstruktur Download PDF

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Publication number
EP0409453B1
EP0409453B1 EP90307402A EP90307402A EP0409453B1 EP 0409453 B1 EP0409453 B1 EP 0409453B1 EP 90307402 A EP90307402 A EP 90307402A EP 90307402 A EP90307402 A EP 90307402A EP 0409453 B1 EP0409453 B1 EP 0409453B1
Authority
EP
European Patent Office
Prior art keywords
layer
timber
elastomer
structure according
layers
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
EP90307402A
Other languages
English (en)
French (fr)
Other versions
EP0409453A1 (de
Inventor
Anthony John Skelton
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.)
Gunnebo UK Ltd
Original Assignee
Chubb Research 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 Chubb Research Ltd filed Critical Chubb Research Ltd
Publication of EP0409453A1 publication Critical patent/EP0409453A1/de
Application granted granted Critical
Publication of EP0409453B1 publication Critical patent/EP0409453B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05G—SAFES OR STRONG-ROOMS FOR VALUABLES; BANK PROTECTION DEVICES; SAFETY TRANSACTION PARTITIONS
    • E05G1/00—Safes or strong-rooms for valuables
    • E05G1/02—Details
    • E05G1/024—Wall or panel structure

Definitions

  • the present invention relates to barrier structures for use e.g. in the walls and/or doors of safes, strongrooms and the like penetration-resistant security enclosures.
  • the invention is concerned with security barrier structures of which a constituent is an elastomer barrier material.
  • Elastomers and more especially polyurethane elastomers, have been proposed as a class of material useful for resisting burglarious attack upon safes and the like in GB-A-1427033 and GB-A-1513609, DE-A-3241526 and GB-A-2197362.
  • the toughness and resilience of such materials make them difficult to penetrate using percussion-type tools, they have the tendency to clog and render ineffective the bits of abrasive tools, including the diamond drill, and they can render thermal attacks difficult particularly by the generation of thick and noxious fumes when burnt.
  • the invention seeks to enhance still further the security of elastomer-based barrier structures. That is to say it is possible, if equipped with breathing apparatus to overcome the effects of the attendant fumes, to soften the matrix of known elastomer barrier materials using an oxy-acetylene torch for example and thereafter to dig out a quantity of the barrier with a percussion tool.
  • One aim of the invention is to provide an elastomer security barrier structure with enhanced resistance to attack with this combination of tools, without sacrificing the weight and cost advantages of the elastomer barrier.
  • an anti-explosives panel having five layers of different composition. From the outside to the inside of the panel these comprise a layer of reinforced concrete, a layer of a rubber-like material, a layer of wood-like material, a second layer of reinforced concrete and a layer of rubber. In such a construction resistance to drills and the like cutting/abrasion tools would be provided by the reinforced concrete layers. Reliance on that material, however, leads to an undesirably thick and heavy overall structure.
  • the present invention resides in a security barrier structure comprising a plurality of layers of different materials selected for resistance to penetration by different burglary tools and arranged in the structure so as to be encountered successively in an attack from the outside of the structure, wherein at least one said layer comprises an elastomer material cast around elements of hard material and at least another said layer comprises dense timber.
  • "Dense” in this respect implies a density of preferably no less than 0.6g/cm3, more preferably at least 0.85g/cm3, and most preferably no less than 1.25g/cm3, and the term "timber" is intended to embrace both natural wood and timber products such as the densified boards exemplified below.
  • the incorporation of timber with the elastomer barrier, or vice versa need not impose a significant weight or cost penalty in comparison with a respective prior art single-material barrier and in some embodiments may actually reduce the weight and cost of the overall structure.
  • a preferred class of timber product for use in the invention takes the form of so-called "densified” or “converted” boards which comprise resin-impregnated, compressed ply boards such as those marketed under the trade mark DELIGNIT.
  • Typical properties of such boards are a density of 1.4g/cm3, Brinell hardness of 160 N/mm2, tensile strength of 125 N/mm2, compressive strength of 270 N/mm2 and bending strength of 170 N/mm2.
  • Figures 1 and 2 of which are respective horizontal sections through the adjoining parts of two adjacent wall panels according to two embodiments of the invention for use in the construction of modular strongrooms.
  • each illustrated panel comprises an inner steel plate 1 upon which are disposed, in order from the inner to the outer surface of the structure: an elastomer layer 2; a timber layer 3; an elastomer layer 4 incorporating an expanded steel mesh 5; a timber layer 6; a layer of elastomer 7 reinforced with hard nuggets 8; a timber layer 9; a layer of elastomer 10 reinforced with hard nuggets 11; a timber layer 12; and a layer of elastomer 13 the inner part of which is reinforced with hard nuggets 14 retained in a perforated metal cage 15 and the outer part of which is "straight" elastomer defining the exterior surface of the structure.
  • the elastomer in the layers 2, 4, 7, 10 and 13 is typically a polyester-based polyurethane which in the cured state has a hardness in the range of 50-75° Shore D; an elongation in the range of 250-400%; a tensile strength in the range of 20-40 N/mm2; and a tear strength in the range of 60-110 kN/m.
  • the nuggets 8, 11 and 14 may be of alumina, zirconia alumina ceramic or other hard and refractory material traditionally used for drill-resistance in security barriers, preferably with a hardness of at least 9 Mohs.
  • the layers 3, 6, 9 and 12 are preferably composed of densified boards of which typical properties are given hereinbefore.
  • the mesh 5 is provided to resist cutting into the inner timber layer 3 e.g. with a circular saw.
  • the timber layers 3, 6, 9 and 12 may each be 15mm thick
  • the elastomer layers 2 and 4 may be 5 and 2mm thick respectively
  • the reinforced elastomer layers 7 and 10 may each be 13.5mm thick
  • the outer elastomer layer 13 may be 26mm thick overall, of which the nugget-reinforced thickness is 21mm.
  • a sub-assembly of the four timber layers 3, 6, 9 and 12, together with the mesh 4 and cage 15, is first constructed, the boards forming these layers being screwed or bolted together with suitable spacers (not shown) to define spaces between them for the eventual elastomer layers 4, 7 and 10.
  • This sub-assembly is then anchored by screws or studs (not shown) to the plate 1 and placed in a mould form which defines together with the plate 1 the overall profile of the finished panel including the illustrated stepped edge profile.
  • the nuggets 8, 11 and 14 are placed between the layers 6 and 9, 9 and 12 and into the cage 15, and the mixed elastomer resin is then poured in to fill all the interstices remaining between the other components of the structure and the walls of the mould form, thereby forming the layers 2, 4, 7, 10 and 13 and bonding the whole structure together.
  • the outer surface of the elastomer layer 13 can be moulded with a stippled or other decorative textured effect if desired.
  • the grain in the layers 2, 6, 9 and 12 is preferably aligned alternately vertically and horizontally, in practice each timber layer being composed of a number of boards placed side by side (with vertical grain) or stacked one above the other (with horizontal grain). The presence of the intervening elastomer layers 4, 7, 10 and 12 will make the locations of the board edges very difficult to discover in an attack.
  • the adjacent panels are connected together from the inside by rows of screws 16 passing through overlapping edges of the inner plates 1 and into welded-on tapping blocks (not shown).
  • each illustrated panel comprises a fabrication in sheet steel defining stepped edge sections 20, 21 and a series of inner pans 23.
  • the attached barrier structure comprises seven layers of timber 24-30 and an outer layer of elastomer 31 reinforced with hard nuggets 32. Pierced steel sheets 33-39 are disposed between each timber layer and between the outer timber layer and the reinforced elastomer layer.
  • the timber, elastomer and hard nugget materials may be the same as those discussed above in relation to the Figure 1 embodiment.
  • the exterior surface of the structure may be defined by "straight" elastomer with the nuggets 32 retained in a cage as described in relation to Figure 1 or, as illustrated in Fiqure 2, a steel finishing skin 40 may be applied.
  • the timber layers 24-30 may each be 19mm thick
  • the reinforced elastomer layer 31/32 may be 25mm thick
  • the pierced steel sheets 33-39 may each be 1.75mm thick.
  • the fabrication 20-23 is first made up, densified boards 24 forming the inner timber layer are fixed by screws 41 to the pans 23 with their grain running vertically, and the inner pierced steel sheet 33 is welded on to the edges of the pans.
  • the next six timber layers 25-30 and pierced steel sheets 34-39 are built up successively onto this structure, being held together by numerous screw nails, the grain in the successive timber layers alternating between horizontal and vertical.
  • the hard nuggets 32 are then placed in position with the outer finishing skin 40 welded on and the elastomer layer 31 is cast into this assembly, suitable filling and air-vent ports being provided for the purpose.
  • the outer pierced steel layer 39 provides a good key to resist delamination of the elastomer 31, and the resin permeats between the edges of the boards in at least the outer timber layer 30.
  • the adjacent panels are connected together from the inside by rows of screws 42 passing through the inner overlapping panel edges and into the timber layers 28-30 of the outer overlapping edges.
  • Vertical steel channels 43 beneath the screw heads spread the clamping load and a snap-on trim 44 completes the assembly.

Landscapes

  • Building Environments (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)

Claims (10)

  1. Sicherheitsbarrierenstruktur, bestehend aus einer Mehrzahl von Schichten unterschiedlicher Materialien (2 bis 14; 24 bis 32), die für ihre Widerstandsfähigkeit gegen das Eindringen durch verschiedene Einbruchswerkzeuge ausgewählt wurden und die in der Struktur so angeordnet sind, daß sie einem Angriff von der Außenseite der Struktur aufeinanderfolgend entgegentreten, wobei mindestens eine dieser Schichten aus einem Elastomermaterial (7, 10, 12; 31) besteht, das um Elemente aus hartem Material (8, 11, 14; 32) vergossen ist und mindestens eine andere dieser Schichten aus dichtem Holz (3, 6, 9, 12; 24 bis 30) besteht.
  2. Struktur nach Anspruch 1, welche aus dieser Schicht aus Elastomermaterial (7, 10, 13), vergossen um Elemente von hartem Material (8, 11, 14), angeordnet an der Außenseite der Schicht aus dichtem Holz (6, 9, 12) und einer Schicht aus Elastomermaterial (4, 7, 10), angeordnet an der Innenseite dieser Schicht aus dichtem Holz (6, 9, 12) besteht.
  3. Struktur nach Anspruch 1, welche aus einer Mehrzahl dieser Schichten aus dichtem Holz (24 bis 30) und dieser Schicht aus Elastomermaterial (31), vergossen um Elemente aus hartem Material (32) besteht, wobei das Elastomer (32) an die Außenseite der Vielzahl von Schichten aus dichtem Holz (24 bis 30) vergossen ist.
  4. Struktur nach Anspruch 1, deren äußerste Schicht aus dem Elastomermaterial (13) besteht, deren innerer Teil um die Elemente des harten Materials (14) vergossen ist und deren äußerer Teil solche Elemente (14) nicht enthält und die äußere Oberfläche der Struktur bildet.
  5. Struktur nach Anspruch 1, bei der die Dichte dieses Holzes (3, 6, 9, 12; 24 bis 30) mindestens 0,6 g/cm³ beträgt.
  6. Struktur nach Anspruch 1, bei der die Dichte dieses Holzes (3, 6, 9, 12; 24 bis 30) mindestens 0,85 g/cm³ beträgt.
  7. Struktur nach Anspruch 1, bei der die Dichte des Holzes (3, 6, 9, 12; 24 bis 30) mindestens 1,25 g/cm³ beträgt.
  8. Struktur nach Anspruch 1, bei der das Elastomermaterial (4, 7, 10, 13; 31) eine Härte im Bereich von 50 bis 75° Shore D und eine Dehnung im Bereich von 250 bis 400 % aufweist.
  9. Struktur nach Anspruch 1, bei der das Elastomermaterial (4, 7, 10, 13; 31) eine Streckgrenze im Bereich von 20 bis 40 N/mm² und eine Reißfestigkeit im Bereich von 60 bis 110 kN/m aufweist.
  10. Vorgefertigter Panzerraum, gebildet durch einen Zusammenbau einer Vielzahl von Tafeln, von denen jede aus einer Sicherheitsbarrierenstruktur besteht, wie sie bei einem der vorhergehenden Ansprüche beansprucht ist, wobei die Ecken einanderstoßender Tafeln als überlappende Barrierenteile ausgebildet sind und einanderstoßende Tafeln durch Befestigungsmittel (16; 42) miteinander gesichert werden, welche von der Innenseite des Zusammenbaus angebracht sind.
EP90307402A 1989-07-18 1990-07-06 Sicherheitswandstruktur Expired - Lifetime EP0409453B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8916380 1989-07-18
GB898916380A GB8916380D0 (en) 1989-07-18 1989-07-18 Security barrier structure

Publications (2)

Publication Number Publication Date
EP0409453A1 EP0409453A1 (de) 1991-01-23
EP0409453B1 true EP0409453B1 (de) 1995-03-08

Family

ID=10660190

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90307402A Expired - Lifetime EP0409453B1 (de) 1989-07-18 1990-07-06 Sicherheitswandstruktur

Country Status (8)

Country Link
EP (1) EP0409453B1 (de)
AT (1) ATE119619T1 (de)
AU (1) AU5889390A (de)
DE (1) DE69017541T2 (de)
GB (2) GB8916380D0 (de)
IE (1) IE902602A1 (de)
MY (1) MY106482A (de)
ZA (1) ZA905528B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009006380U1 (de) 2009-04-30 2009-07-02 Gunnebo Markersdorf Gmbh Wertschutzraum

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9418787D0 (en) * 1994-09-17 1994-11-02 Doors Limited Improvements in and relating to security of buildings and other structures
AU757940B2 (en) * 1998-08-05 2003-03-13 Strategic Manufacturing Pty Ltd Security door
NL1016752C1 (nl) * 2000-11-30 2002-05-31 Jeroen Thomas Simon Kolsteeg Demontabel inbraakwerend compartiment.
GB0110873D0 (en) * 2001-05-03 2001-06-27 Hyperlast Ltd Burglar resistant materials
ES2233130B1 (es) * 2002-07-08 2006-10-16 Grupo Ormazabal, S.A. Producto estratificado de alta resistencia de aplicacion en elementos de seguridad, asi como productos obtenidos con ese material.
US8567665B2 (en) * 2010-05-20 2013-10-29 Ncr Corporation Secure enclosure
ES2353183B1 (es) * 2010-10-14 2012-03-23 Carlos Fradera Pellicer Muro blindado y procedimiento de fabricación correspondiente.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE696223A (de) * 1967-03-29 1967-09-01
GB1513609A (en) * 1976-10-11 1978-06-07 Feldmuehle Ag Wall element for safes and the like
US4470357A (en) * 1983-01-17 1984-09-11 Caesar Sanzaro Laminated panels for vault construction
FR2539800A1 (fr) * 1983-01-26 1984-07-27 Bordier Sa Paroi d'enceinte de securite, et enceinte correspondante
NL8501359A (nl) * 1985-05-13 1986-12-01 Jung Bouwen En Wonen B V Anti-springstofpaneel.
GB8626700D0 (en) * 1986-11-07 1986-12-10 Chubb & Sons Lock & Safe Co Security receptacles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009006380U1 (de) 2009-04-30 2009-07-02 Gunnebo Markersdorf Gmbh Wertschutzraum

Also Published As

Publication number Publication date
GB8916380D0 (en) 1989-09-06
EP0409453A1 (de) 1991-01-23
DE69017541T2 (de) 1995-07-06
MY106482A (en) 1995-05-30
AU5889390A (en) 1991-01-24
GB2233993B (en) 1993-07-07
GB9015105D0 (en) 1990-08-29
ZA905528B (en) 1991-12-24
DE69017541D1 (de) 1995-04-13
IE902602A1 (en) 1991-02-27
ATE119619T1 (de) 1995-03-15
GB2233993A (en) 1991-01-23

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