WO2012023035A2 - Panneau de clôture - Google Patents

Panneau de clôture Download PDF

Info

Publication number
WO2012023035A2
WO2012023035A2 PCT/IB2011/001925 IB2011001925W WO2012023035A2 WO 2012023035 A2 WO2012023035 A2 WO 2012023035A2 IB 2011001925 W IB2011001925 W IB 2011001925W WO 2012023035 A2 WO2012023035 A2 WO 2012023035A2
Authority
WO
WIPO (PCT)
Prior art keywords
fence
panel
sheet
panels
edges
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.)
Ceased
Application number
PCT/IB2011/001925
Other languages
English (en)
Other versions
WO2012023035A3 (fr
Inventor
Steven David Cochrane
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.)
Shield Projects Ltd
Original Assignee
Shield Projects 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 Shield Projects Ltd filed Critical Shield Projects Ltd
Publication of WO2012023035A2 publication Critical patent/WO2012023035A2/fr
Publication of WO2012023035A3 publication Critical patent/WO2012023035A3/fr
Anticipated expiration legal-status Critical
Ceased 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
    • E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
    • E04H17/16—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts using prefabricated panel-like elements, e.g. wired frames

Definitions

  • This invention relates to a fence.
  • a fence which is erected for security purposes is generally highly visible and visually intrusive.
  • use is made of a high density welded mesh panel which is supported at opposing ends by means of posts, lower ends of which are embedded in the ground.
  • the posts are made from tubular components, typically mild steel sheet, and are prominent and expensive.
  • the panel on the other hand, despite being made from mesh, offers a see-through capability which does not unduly block vision.
  • a primary requirement of a security fence is that it should Offer a high degree of resistance to direct penetration. Of almost equal importance is that it should be difficult to scale the fence or burrow beneath the fence.
  • An object of the present invention is to address, at least in a preferred embodiment of the invention, the aforementioned requirements.
  • the invention provides in the first instance a fence panel which includes a sheet of welded mesh with first and second opposed vertical edges, and third and fourth opposed horizontal edges, the sheet being formed with at least one fold line which extends vertically between, and parallel to, the first and second edges whereby the sheet is shaped to have at least two sections with an obtuse included angle between the sections.
  • the obtuse angle may be of the order of 135°.
  • the panel may be formed with at least a third fold line to form a third panel section with an obtuse included angle between the second panel section and the third panel section.
  • the fence panel may thus have a zigzag profile.
  • At least one panel section may include at least one rigidifying formation.
  • the rigidifying formation may be in the form of a shallow V or channel which extends vertically.
  • the formation may be positioned, preferably centrally, between a respective vertical edge and said fold line.
  • the sheet, adjacent one of the vertical edges, may be bent along a vertical line to form a flange.
  • An upper horizontal edge of the sheet may include deterrent formations of any appropriate kind.
  • the deterrent formations may be formed by bending a peripheral portion of the sheet, adjacent the upper horizontal edge, out of a plane which is occupied by the remainder of the sheet. Typically the peripheral portion is bent through about 70° to 80°.
  • the invention also provides a fence which is formed from a plurality of fence panels, each fence panel being of the aforementioned kind, wherein lower horizontal edges of the panels are embedded in concrete and adjacent panels have vertical edges, preferably overlapping, which are secured to each other.
  • the fence is formed from a plurality of mesh panels which, in plan, follow a zigzag path. Each panel may be suitably stiffened by means of one or more vertically extending reinforcing formations. The lower edges of the mesh panels may be embedded in concrete. In this form of the invention it is not necessary to form each panel with a V-shape.
  • each panel which is generally planar although it does have one or more vertically extending reinforcing formations, is connected to an adjacent, similar, non-coplanar panel.
  • the zigzag path is achieved.
  • the zigzag path results by forming the respective panels, again suitably reinforced with vertically extending rigidifying formations, into respective V-shapes.
  • FIG. 1 illustrates a fence according to the invention
  • Figure 2 shows panels in the fence of Figure 1 ;
  • Figure 3 is a plan view of the fence shown in Figure 1 ;
  • Figure 4 shows the fence in elevation.
  • each panel is made from a respective sheet of welded mesh 30 which has a high density.
  • the sheet has first and second opposed vertical edges 32 and 34 respectively and third and fourth opposed horizontal edges 36 and 38. Initially the sheet is planar. However in a metal working process which is carried out in a suitable factory the sheet is formed with a vertically-extending fold line 40.
  • the fold line divides the sheet 30 into two panel sections 44 and 46 which are equal in size to one another.
  • the sections 44 and 46 have an included obtuse angle 50 between them which is of the order of 135°.
  • an elongate reinforcing formation 60 is formed in each respective section 44 and 46.
  • Each formation is roughly V-shaped in cross-section and extends from the lower edge 38 to the upper edge 36 of the panel.
  • a peripheral portion 64 of the panel, adjacent the vertical edge 34, is bent around a vertical line 66 to form an included angle, relative to the section 46, equal to the angle 50.
  • the peripheral section 64 overlies a portion of the panel 14 which is adjacent its vertical edge 32.
  • Suitable fasteners 70 ( Figure 4) are then used to secure the two panels firmly together.
  • each panel When the fence is erected the base of each panel is positioned in the trench and adjacent panels are bolted together. Once the panels have been levelled vertically and horizontally the concrete 22 is poured into the trench. No posts are used in the erection of the fence.
  • the resulting structure has considerable rigidity due to the zigzag structure of the high density mesh panels. No posts are required. The erection process does not call for the same degree of precision and accuracy as is the case when panels are connected to posts.
  • the high density mesh structure is difficult to penetrate and, due to the concrete foundation, an intruder cannot easily dig underneath the fence.
  • a section 76 of each panel is bent through an angle of about 70°. This helps to rigidity the fence in its upper region and, moreover, constitutes a formation which makes it difficult for an intruder to scale the fence. If the fence traverses ground which is not level one panel can be lifted or lowered, relative to an adjacent panel, and then bolted together before concrete placement takes place, to ensure that the fence follows the ground contours.
  • the fence is constructed from a plurality of panels each of which is bent to have a V-shape. Appropriate rigidifying formations and flanges at vertical edges are formed, as necessary, to ensure that each panel is relatively stiff and to facilitate coupling of adjacent panels to each other.
  • each panel although formed with one or more rigidifying formations which, in use, extend vertically (generally of the kind 60 shown in Figure 3 say) is substantially planar and is not bent into two adjacent panel sections 44 and 46. Instead, each substantially planar panel is fixed to an adjacent substantially planar panel at an appropriate angle (viewed in plan) so that the resulting erected fence follows a generally zigzag path.
  • orientations of the panels vary to achieve the zigzag path.
  • the zigzag path results from bending each panel into sections which, viewed in plan, are at an angle to each other.
  • lower edges of the panels are, also, embedded in concrete and vertical edges of the panels are formed with flanges, as appropriate, to facilitate coupling of adjacent panels to one another.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Fencing (AREA)

Abstract

L'invention concerne une clôture qui est formée à partir d'une pluralité de panneaux en treillis qui, sur une vue de dessus, suivent un chemin en zigzag.
PCT/IB2011/001925 2010-08-20 2011-08-22 Panneau de clôture Ceased WO2012023035A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA201006008 2010-08-20
ZA2010/06008 2010-08-20

Publications (2)

Publication Number Publication Date
WO2012023035A2 true WO2012023035A2 (fr) 2012-02-23
WO2012023035A3 WO2012023035A3 (fr) 2012-11-15

Family

ID=44801032

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2011/001925 Ceased WO2012023035A2 (fr) 2010-08-20 2011-08-22 Panneau de clôture

Country Status (1)

Country Link
WO (1) WO2012023035A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2009322C2 (nl) * 2012-08-14 2014-02-18 Crh Fencing & Security Group B V Verbeterd hek met een draadmat.
US20190284815A1 (en) * 2016-11-23 2019-09-19 Mrm Hk Limited Fastener assembly, mesh panel and barrier system
US12607036B2 (en) 2023-05-10 2026-04-21 Honeywell Safety Products Usa, Inc. Edge protection barrier separate handrail

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526347A (en) * 1981-06-09 1985-07-02 Institute For Industrial Research And Standards Fence assembly
WO2007021304A2 (fr) * 2005-08-17 2007-02-22 Charles Larsen Appareil de clôture et procédés associés

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2009322C2 (nl) * 2012-08-14 2014-02-18 Crh Fencing & Security Group B V Verbeterd hek met een draadmat.
US20190284815A1 (en) * 2016-11-23 2019-09-19 Mrm Hk Limited Fastener assembly, mesh panel and barrier system
US12018491B2 (en) * 2016-11-23 2024-06-25 Mrm Hk Limited Fastener assembly, mesh panel and barrier system
US12607036B2 (en) 2023-05-10 2026-04-21 Honeywell Safety Products Usa, Inc. Edge protection barrier separate handrail

Also Published As

Publication number Publication date
WO2012023035A3 (fr) 2012-11-15

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