EP1651829A1 - Panneau grillage de securite - Google Patents

Panneau grillage de securite

Info

Publication number
EP1651829A1
EP1651829A1 EP04749248A EP04749248A EP1651829A1 EP 1651829 A1 EP1651829 A1 EP 1651829A1 EP 04749248 A EP04749248 A EP 04749248A EP 04749248 A EP04749248 A EP 04749248A EP 1651829 A1 EP1651829 A1 EP 1651829A1
Authority
EP
European Patent Office
Prior art keywords
barbed
metal
security panel
mesh
panel
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.)
Withdrawn
Application number
EP04749248A
Other languages
German (de)
English (en)
Inventor
Jeffrey S. K. Yeo
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.)
Expanded Metal Group Pte Ltd
Original Assignee
Expanded Metal Group Pte 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 Expanded Metal Group Pte Ltd filed Critical Expanded Metal Group Pte Ltd
Publication of EP1651829A1 publication Critical patent/EP1651829A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H17/00—Fencing, e.g. fences, enclosures, corrals
    • E04H17/02—Wire fencing, e.g. made of wire mesh
    • E04H17/04—Wire fencing, e.g. made of wire mesh characterised by the use of specially adapted wire, e.g. barbed wire, wire mesh, toothed strip or the like; Coupling means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F25/00—Making barbed wire

Definitions

  • the present invention relates to a security panel, for example for use in a security barrier, and to a method of forming the security panel.
  • Security barriers are conventionally formed from straight sections of elongated metal tape having barbs formed at spaced intervals along the tape.
  • the metal tape may be traditional barbed wire, which usually comprises two or more braided wires with regularly spaced intertwined wire barbs.
  • the metal- tape may be razor wire, which usually has a central wire with laterally extending planar barbs. An example of such razor wire is disclosed in US 4,509,726.
  • security panel comprising an expanded metal mesh, the mesh having apertures therethrough bounded by a plurality of sides, at least one of said apertures having at least one side to which is affixed a separate barbed structure, the barbed structure having at least one barb extending in a plane of the panel iri towards another side of said aperture.
  • the security panel is formed from an expanded mesh, there is no need for welds or rivets at mesh nodes.
  • the panel therefore has an inherent strength and durability beyond that which may be achieved with a security panel formed from individual lengths of razor wire.
  • the barbed structures are affixed to all sides of said at least one aperture. This helps to provide the maximum number of the barbs projecting into each aperture of the security panel, thereby improving the security of the panel. Furthermore, for the same reason the barbed structure may have a plurality of said barbs extending in the plane of the panel in towards another side of said aperture.
  • the barbed structure includes a plurality of barbed points grouped in threes, a first and a second one of said barbed points extending in opposite directions parallel with the corresponding side of said aperture, and the third one of said barbed points extending transversely away from the corresponding side of said aperture.
  • each side of an aperture is formed from an elongate strip of metal, and each of the strips of metal is joined integrally to adjacent strips of metal at mesh nodes.
  • the barbed structure is then affixed to just one corresponding strip of metal. So that the fixing of the barbed structure does not adversely affect the strength of the mesh nodes, the barbed structure is preferably affixed to this one corresponding strip of metal at one or more points lying between the mesh nodes .
  • the barbed structure preferably lies entirely between mesh nodes.
  • the invention further provides a security fence, comprising at least two upright fence supports, and a security panel, said security panel being supported by said fence supports, wherein the security panel is according to the invention.
  • a method of forming a security panel comprising the steps of: making a plurality of non-intersecting cuts in a sheet of metal ,- expanding the cut sheet to form an expanded metal mesh, the mesh having apertures therethrough bounded by a plurality of sides; forming one or more barbed structures in metal separate from the expanded metal mesh, the or each barbed structure having at least one extending barb; and affixing at least one of said barbed structures to a side of at least one of said apertures so that at least one barb extends in a plane of the panel in towards another side of said aperture.
  • the method may also comprise the step of affixing the or each ' barbed structure between a pair of nodes of the metal mesh.
  • One way of affixing the barbed structure to the metal mesh is to form the barbed structure with at least one extending tab, and then wrap the or each tab around portions of the metal mesh bounding the aperture in order to affix the barbed structure to said side of said aperture.
  • the barbed structure may be affixed to the metal mesh by welding the barbed structure to the metal mesh at one or more points between nodes of the metal mesh.
  • Figure 1 is a plan view of one side of a security mesh panel according to the invention.
  • Figure 2 is an enlarged plan view of part of the opposite side of the security mesh panel of Figure 1;
  • Figure 3 is a cross-section view through the security mesh panel, taken along line III-III of Figure 2;
  • Figure 4 is a view of a security fence, comprising upright fence supports that support the security panel of Figures 1 to 3. Detailed Description
  • Figure 1 shows a plan view of one side of a security mesh, panel 1.
  • the security panel 1 is formed from a planar expanded metal mesh 2 to which individual elongate metal barbed structures 4 have been permanently affixed, for example by spot welding.
  • the expanded mesh 2 is itself formed in a conventional manner from a metal sheet 1 , for example 3 trim thick mild steel, galvanized steel or even stainless steel, through which a series of parallel non-overlapping slits have been punched. After the slits have been formed, a pair of opposite edges of the sheet is pulled apart to expand the sheet and form the mesh 2. If the expanded metal sheet requires corrosion protection, then it may be galvanized.
  • FIGS 2 and 3 show respectively an enlarged plan view of a side of the security mesh 2 opposite to that shown in Figure 1, and a cross section view through the security mesh.
  • the mesh 2 consists of a series of adjacent strips of metal 6, which in this example are essentially straight sections. Each straight section 6 is bounded by mesh nodes 8 at which each straight section merges integrally with adjacent straight sections 6. Each mesh node 8 is therefore joined to four adjacent straight sections 6 in an X-pattern, except at an edge 10 of the mesh where each mesh node 8 is joined to two adjacent straight sections 6 in a V-pattern.
  • the metal mesh 2 therefore presents a number of diamond shaped apertures 9, each of which is bounded by four adjacent sides 11.
  • Each barbed structure 4 lies entirely between a pair of mesh nodes 8, which are at opposite ends of a mesh straight section 6. In the present example, there are three such barbed structures between 4 each mesh node 8. There may, however, be one, two, four or any convenient number of such- barbed structures 4 between the nodes 8.
  • the barbed, structures 4 are all punched from sheet metal, preferably galvanized steel or stainless steel and then folded along a central axis to form a square U-shaped channel 12 that extends the full length of each barbed structure 4.
  • each straight, section 6 has a square cross-section.
  • the cross section may, however, alternatively be rectangular.
  • the cross-section of the straight section has a complementary shape with the U-shaped channel so that each barbed structure 4 is seated securely on a corresponding straight section 6.
  • Each straight section 6 is therefore seated in the channel 12 when the barbed, structure 4 is affixed to the corresponding straight section 6.
  • Each barbed structure 4 is formed with at least one, and preferably two or three barbs 14 along opposite sides of the barbed structure.
  • the barbs 14 are multi-pointed. The number and spacing of the barbs 14 will depend on the relative sizes of the barbs 14 and aperture ' 9.
  • the barbs 14 each have a pair of barbed points 15, 16 that extend parallel with the length of the U-shaped channel 12 and at a distance from the straight section 6.
  • a third intermediate barbed point 17 extends transversely away from the channel 12 and straight section 6.
  • Each of the barbed points 15, 16, 17 is triangular in plan view and extends in the plane of the security mesh 2 towards another side 11 of the aperture 9.
  • each barbed structure 4 When the barbed structures 4 are being assembled with the metal mesh 2, the complimentary square shapes of each, straight section 6 and corresponding barbed structure 4 help to align the barbed structure 6 with the plane of the metal mesh 2. This greatly simplifies the manufacturing process, as it is not necessary to hold each barbed structure 4 in place prior to permanent affixing of the barbed structure 4 to the corresponding straight section 6.
  • the barbed structure 4 In order to make each barbed point 15, 16, 17 as sharp as possible, the barbed structure 4 is preferably stamped from relatively thin sheet metal, for example between 0.3 mm and 0.5 mm thick.
  • the barbs 14 should, however, be difficult to bend back by hand, and in order to reinforce each barb 14 against such bending, each barb 14 has a corresponding base portion 18 that extends in the plane of the mesh panel 2 laterally away from the channel 12.
  • Each barb 14 has a central waist 20 from which the three barbed points 15, 16, 17 project and from which the base portion 18 flares outwards towards the channel 12. This arrangement of base portion 18 and waist 20 therefore permits each barb 14 to be spaced at a sufficient distance from the straight section 6 to provide enhanced security, while at the same time diminishing the distance between the waist 20 and the barbed points 15, 16, 17 in order to reduce the amount of leverage that may be applied in an attempt to bend back a barbed point 15, 16, 17.
  • each base portion 18 is distinct from base portions of any adjacent barbs 14.
  • the effectiveness of each barb 14 is also enhanced if there is a longitudinal spacing between adjacent parallel barbed points 15, 16 at least as great as the lateral spacing of each of these points from the central channel 12. Therefore, it is particularly preferred that each base portion 18 is separated by a gap 22 from adjacent base portions 18.
  • this arrangement permits the barbed structure 4 to have one or more tabs 24 which wrap around the corresponding straight section 6 to which the barbed structure 4 is affixed.
  • tabs 24 there is a pair of such tabs 24 spaced along the length of the corresponding strip of metal 6 and which extend from opposite sides 25, 26 of the channel 12.
  • the tabs 24 enhance the join between the barbed structure 4 and the corresponding straight section 6, and may be wrapped around the straight section.6 prior to welding in order to ensure that each straight section 6 is held securely in place prior to permanent affixing of the barbed structure 4 to the straight section 6.
  • the tabs 24 may be used to hold the barbed structures 4 to the corresponding straight section 6 prior to welding of the barbed structure to the straight section.
  • the barbed structures 4 have no tabs, but are crimped to the corresponding straight section 6, the crimping being sufficient to hold the barbed structure in place prior to permanent fixing, for example by welding.
  • the security panel 1 described above may be used in various applications where a panel-type security barrier is needed.
  • the security panel 1 may form only a portion of a security barrier, for example a security strip atop a wall or fence, or may form all or substantially all of a security barrier.
  • An example of the latter application is illustrated in Figure 4, which shows a security fence 30 comprising at least two Upright fence supports 32, which may be secured in the ground 34, with the security panel 1 being supported by the fence supports 32. Because of the solid interconnection between the strips of metal 6 at. integral mesh ..nodes 8, such a security fence 30 is very strong compared with mesh structures in which initially separate strips have been subsequently secured together by welding or riveting.
  • each tnesh node 8 will tend to be less susceptible to corrosion.
  • the security panel 1 of the invention therefore does not need to be formed in expensive materials such as stainless steel in order to form a durable security barrier.
  • barbed structure 4 and mesh straight section 6 described above also provides significant advantages, both in terms of the assembly of the structure and the ultimate deterrent value of the security mesh structure.
  • the invention therefore provides an economical and convenient security panel that may be used in a range of different security applications.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Fencing (AREA)
  • Panels For Use In Building Construction (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention se rapporte à un panneau de sécurité (1) conçu en particulier pour une barrière de sécurité, ainsi qu'à un procédé de production d'un panneau de sécurité. Ledit panneau de sécurité (1) comprend un grillage métallique étendu (2) comportant des ouvertures (9) qui sont reliées par une pluralité de côtés (11). Au moins une desdites ouvertures (9) comprend au moins un côté (11) auquel est fixée une structure barbelée distincte (4) comportant au moins une barbe (14) qui s'étend dans un plan du panneau (1) vers un autre côté (11) de ladite ouverture (9).
EP04749248A 2003-08-05 2004-07-29 Panneau grillage de securite Withdrawn EP1651829A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SG200305400A SG108935A1 (en) 2003-08-05 2003-08-05 Security mesh panel
PCT/SG2004/000226 WO2005012673A1 (fr) 2003-08-05 2004-07-29 Panneau grillage de securite

Publications (1)

Publication Number Publication Date
EP1651829A1 true EP1651829A1 (fr) 2006-05-03

Family

ID=34114579

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04749248A Withdrawn EP1651829A1 (fr) 2003-08-05 2004-07-29 Panneau grillage de securite

Country Status (12)

Country Link
US (1) US20070138454A1 (fr)
EP (1) EP1651829A1 (fr)
JP (1) JP2007501346A (fr)
KR (1) KR20060132544A (fr)
CN (1) CN1860275A (fr)
AU (1) AU2004260923A1 (fr)
BR (1) BRPI0413345A (fr)
CA (1) CA2534620A1 (fr)
HK (1) HK1063968A2 (fr)
IL (1) IL173489A0 (fr)
SG (1) SG108935A1 (fr)
WO (1) WO2005012673A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2479782A (en) * 2010-04-23 2011-10-26 Birmingham Barbed Tape Ltd Fence panel with resistance to cutting, indentation,grinding and abrasion

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2249947B1 (es) * 2003-07-11 2007-06-16 Juan Maria Cruz-Sagredo Garcia Malla esclerofila.
RU2569609C2 (ru) * 2013-12-30 2015-11-27 Юрий Владимирович Ткаченко Способ изготовления плоского колюще-режущего заграждения "акация"
CN104763226A (zh) * 2014-01-06 2015-07-08 于庆莲 防攀爬尖刺网板
ES1139856Y (es) * 2015-04-23 2015-09-03 Ferrer Gerard Maiquez Pantalla protectora contra animales agresivos
US10519690B2 (en) * 2016-02-17 2019-12-31 George Anton Harrop-Allin Barb tape and barb tape panel
US11066845B2 (en) * 2018-01-09 2021-07-20 Allied Tube & Conduit Corporation Razor wire barrier for access point security
US11732498B2 (en) * 2018-11-13 2023-08-22 Cochrane Steel Products (Pty) Ltd Razor wire fence panel

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US197757A (en) * 1877-12-04 Improvement in barbs for wire fences
FR1076099A (fr) * 1953-04-24 1954-10-22 élément de clôture, particulièrement applicable aux parcs à animaux
US2802645A (en) * 1954-04-16 1957-08-13 Winston C Rice Method of converting a wire fence
US3356343A (en) * 1965-10-23 1967-12-05 William H Taylor Slat for chain-link fence
FR2155104A5 (fr) * 1971-10-07 1973-05-18 Chatillon Gorcy Trefiler
US3913889A (en) * 1973-10-11 1975-10-21 West Chester Chem Co Snow fence
US4526347A (en) * 1981-06-09 1985-07-02 Institute For Industrial Research And Standards Fence assembly
US4503423A (en) * 1982-01-18 1985-03-05 Man Barrier Corporation Extensible and retractable barrier and electromagnetic intrusion detector therefor
US4509726A (en) * 1983-10-17 1985-04-09 American Security Fence Company Barrier
DE3426625A1 (de) * 1984-07-19 1986-01-30 Friedrich C. 4573 Löningen Graepel Stacheldraht
US4666129A (en) * 1985-01-23 1987-05-19 American Fence Corporation Barrier
US4725044A (en) * 1986-11-18 1988-02-16 Cluff Robert G Chain link fencing containing decorative slats and locking clips
GB2240351B (en) * 1990-01-24 1993-11-24 Cochrane Steel Prod Pty Ltd Method of and apparatus for making a fencing panel
US5074529A (en) * 1990-09-07 1991-12-24 Mrm Security Systems, Inc. Clip for forming a concertina configuration of helical barbed tape
GB2259722A (en) * 1991-09-20 1993-03-24 Cochrane Steel Prod Pty Ltd Security fencing
US5584468A (en) * 1996-01-26 1996-12-17 Meglino; Don A. Privacy inserts for chain link fences
FR2758485B1 (fr) * 1997-01-23 1999-03-26 Cochrane Steel Prod Pty Ltd Procede de fabrication d'un materiau en forme de bande barbelee et panneau de cloture forme a partir d'un tel materiau
US7044447B2 (en) * 2002-12-02 2006-05-16 Renne Cano Retractable barbed barrier system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005012673A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2479782A (en) * 2010-04-23 2011-10-26 Birmingham Barbed Tape Ltd Fence panel with resistance to cutting, indentation,grinding and abrasion
GB2479782B (en) * 2010-04-23 2016-01-27 Birmingham Barbed Tape Ltd High security fence

Also Published As

Publication number Publication date
JP2007501346A (ja) 2007-01-25
US20070138454A1 (en) 2007-06-21
IL173489A0 (en) 2006-06-11
WO2005012673A1 (fr) 2005-02-10
BRPI0413345A (pt) 2006-10-10
WO2005012673A8 (fr) 2006-03-23
HK1063968A2 (en) 2004-12-31
AU2004260923A1 (en) 2005-02-10
SG108935A1 (en) 2005-02-28
CA2534620A1 (fr) 2005-02-10
KR20060132544A (ko) 2006-12-21
CN1860275A (zh) 2006-11-08

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