WO2009116096A1 - Plaque métallique pour échafaudage et son procédé de fabrication - Google Patents

Plaque métallique pour échafaudage et son procédé de fabrication Download PDF

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Publication number
WO2009116096A1
WO2009116096A1 PCT/IT2008/000179 IT2008000179W WO2009116096A1 WO 2009116096 A1 WO2009116096 A1 WO 2009116096A1 IT 2008000179 W IT2008000179 W IT 2008000179W WO 2009116096 A1 WO2009116096 A1 WO 2009116096A1
Authority
WO
WIPO (PCT)
Prior art keywords
base sheet
support member
metal board
tabs
metal
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/IT2008/000179
Other languages
English (en)
Inventor
Vincenzo Violante
Stefano Curti
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.)
MARCEGAGLIA BUILINGS SpA
Original Assignee
MARCEGAGLIA BUILINGS SpA
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 MARCEGAGLIA BUILINGS SpA filed Critical MARCEGAGLIA BUILINGS SpA
Priority to PCT/IT2008/000179 priority Critical patent/WO2009116096A1/fr
Priority to EP08763775A priority patent/EP2255046A1/fr
Publication of WO2009116096A1 publication Critical patent/WO2009116096A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
    • E04G1/152—Platforms made of metal or with metal-supporting frame
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/08—Scaffold boards or planks

Definitions

  • the present invention relates to a metal board for scaffolding and a method of manufacturing the same.
  • Scaffolding metal boards known in the state of the art comprise a metal base sheet and at least one support member.
  • the metal base sheet is usually made of steel, and it is usually connected to the support member by means of welding.
  • a further drawback of current metal boards is the high energy consumption for the production process including a welding phase.
  • the technical task proposed by the present invention is therefore that of providing a metal board for scaffolding and a method of manufacturing the same which overcome the noted technical drawbacks of the prior art.
  • one object of the invention is that of providing a metal board for scaffolding with a metal base sheet and ⁇ at least one support member connected thereto, while minimising the risk of corrosion.
  • Another object of the invention is that of providing a metal board of simple, robust design for scaffolding.
  • a last but not least object of the invention is that of providing an energy-efficient method of manufacturing a metal board for scaffolding.
  • a metal board for scaffolding comprising a metal base sheet, at least one support member and means for connecting said at least one support member to said base sheet, characterised in that said connecting means comprise a plurality of tabs extending transversally from said base sheet or respectively from said at least one support member, said tabs projecting through a plurality of apertures in said at least one support member or respectively in said base sheet and further extending along said at least one support member or respectively along said base sheet so as to be able to overlap said at least one support member or respectively said base sheet in a junction zone there between.
  • the present invention also relates to a process for manufacturing a metal board for scaffolding, said metal board comprising a metal base sheet, at least one support member and means for connecting said support member to said base sheet, characterised in that it comprises, along a single production line: a) a first step of unwinding a roll of said base sheet; b) a second step of creating a plurality of apertures, and placing a plurality of cuts, in said unwound base sheet; c) a third step of bending said base sheet at said cuts so as to create a plurality of tabs extending transversally there from; d) a fourth step of shaping at least one edge of said base sheet so as to form at least one support member, such that said tabs are aligned with and project through said apertures; e) a fifth step of bending said tabs such that they extend along said at least one support member or said base sheet so as to overlap said at least one support member or respectively said base sheet in a junction zone there between; f) a sixth step of
  • connecting means that do not involve welding helps to avoid the risk of corrosion.
  • the connecting means of the present invention comprise a form of "mechanical stitching" by passing tabs from either the base sheet or the support member through corresponding apertures in the other member, and subsequently folding the tabs such that they overlap this member.
  • the process of manufacturing the metal boards on a single production line prevents lateral displacement and thus ensures perfect alignment of the support member with the base sheet.
  • Figure 1 shows a schematic perspective view of the metal board in accordance with one embodiment of the invention.
  • Figure 2 shows a top view of a section of the metal board.
  • Figure 3 shows a cross-sectional side view of the metal board along line A-A of figure 2.
  • Figure 4 shows a cross-sectional view of the connecting means along line B-B of figure 2 during processing.
  • Figure 5 shows a top view of a section of the metal base sheet during processing.
  • the metal board (1 ) comprises a metal base sheet (2), at least one support member (3A) (3B) (3C) 1 and connecting means (4) for connecting the at least one support member to the base sheet.
  • the connecting means (4) comprise a plurality of tabs (5) projecting from either the base sheet (2) or the support member (3A) (3B) (3C), extending through apertures (6) in the support member or the base sheet, respectively, and then extending along - and overlapping - the support member or base sheet, respectively.
  • the tabs (5) are tapered so as to facilitate insertion into the apertures (6).
  • the support member (3A) (3B) (3C) can optionally be formed integrally with the base sheet (2) by folding an edge (2A) of said base sheet: for instance in the embodiment shown in the above figures, two support members (3A) (3B) are integrally formed with said base sheet (2) and one support member (3C) is individual.
  • the metal board can optionally also comprise stiffening means. These can be in a variety of forms, preferably in the form of elongated protrusions (7) extending from said base sheet.
  • the metal board can optionally comprise anti-slip means.
  • anti-slip means can be in a variety of forms, preferably in the form of protrusions (8) extending from said base sheet.
  • the metal board can comprise liquid drainage means, preferably in the form of secondary apertures (9) in said base sheet. These allow the run-off of liquid from the surface of the unit.
  • the metal board may optionally also comprise retaining means, preferably in the form of a stacking protrusion (not shown) along the each of the front and rear edges of the base sheet (2) which, when metal boards are stacked, align beneath one another so as to help prevent lateral displacement of the metal boards.
  • the metal board (1) for scaffolding is manufactured on a single production line.
  • a plurality of apertures (6) are created and a plurality of cuts (10) are made in the unwound base sheet.
  • the cuts (10) are tapered and the apertures (6) are elongated in nature and are at least as wide as the widest section of the tapered cuts.
  • the base sheet (2) is bent at said cuts (10) so as to create a plurality of tabs (5) extending transversally therefrom.
  • At least one edge (2A) of the base sheet (2) is shaped so as to form at least one support member (3A) (3B), such that the tabs (5) are aligned with, and project through, the apertures (6), as shown in figure 4.
  • the production along a single line prevents lateral displacement and thus ensures that this alignment is very precise.
  • the tapered nature of the tabs (5) resulting from the tapered cuts (10) also facilitate insertion into the apertures (6).
  • the tabs (5) are located close to the centre of the base sheet (2) and the apertures (6) are shown as being along the edge (2A) of the base sheet and therefore becoming part of the support members (3A) (3B).
  • the apertures can alternatively be created closer to the centre of the base sheet and the tabs be located along the edge, such that the tabs instead become part of the support members.
  • the tabs (5) are then bent such that they extend along the support member (3A) (3B), or respectively the base sheet (2), so as to overlap this in a junction zone (11) therebetween. This is preferably carried out by use of compression rollers.
  • the base sheet is cut into sections of desired length. This being the last step helps to prevent lateral displacement of the base sheet during processing and provides flexibility in choosing any desired length of unit.
  • Optional additional steps in the process include creating a plurality of elongated protrusions (7) in the base sheet (2) for stiffening, creating a plurality of protrusions (8) in the base sheet for anti-slip, creating a plurality of secondary apertures (9) in the base sheet for liquid drainage, and creating a plurality of stacking protrusions in the base sheet for preventing lateral movement of the metal boards when stacked.
  • these steps precede step four described above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

La présente invention concerne une plaque métallique (1) pour échafaudage, comprenant : une feuille de base métallique (2) ; au moins un élément support (3A, 3B, 3C) ; et un moyen de raccord (4) destiné à relier l’élément support (3A, 3B, 3C) à ladite feuille de base (2). L’invention se caractérise en ce que ledit moyen de raccord (4) comprend une pluralité d’attaches (5) s’étendant transversalement depuis ladite feuille de base (2) ou respectivement depuis ledit élément support (3A, 3B, 3C). Lesdites attaches (5) sortent d’une pluralité d’ouvertures (6) dans ledit élément support (3A, 3B, 3C), ou respectivement dans ladite feuille de base (2), et s’étendent également le long dudit élément support (3A, 3B, 3C), ou respectivement le long de ladite feuille de base (2), afin de pouvoir recouvrir ledit élément support (3A, 3B, 3C) ou respectivement ladite feuille de base (2) dans une zone de jonction (11) se trouvant entre les deux. L’invention porte aussi sur un procédé de fabrication d’une telle plaque métallique.
PCT/IT2008/000179 2008-03-19 2008-03-19 Plaque métallique pour échafaudage et son procédé de fabrication Ceased WO2009116096A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/IT2008/000179 WO2009116096A1 (fr) 2008-03-19 2008-03-19 Plaque métallique pour échafaudage et son procédé de fabrication
EP08763775A EP2255046A1 (fr) 2008-03-19 2008-03-19 Plaque métallique pour échafaudage et son procédé de fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2008/000179 WO2009116096A1 (fr) 2008-03-19 2008-03-19 Plaque métallique pour échafaudage et son procédé de fabrication

Publications (1)

Publication Number Publication Date
WO2009116096A1 true WO2009116096A1 (fr) 2009-09-24

Family

ID=40014977

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2008/000179 Ceased WO2009116096A1 (fr) 2008-03-19 2008-03-19 Plaque métallique pour échafaudage et son procédé de fabrication

Country Status (2)

Country Link
EP (1) EP2255046A1 (fr)
WO (1) WO2009116096A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023080777A1 (fr) 2021-11-02 2023-05-11 Scafom Holding B.V. Partie de plancher pour échafaudage, et système d'échafaudage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5443137A (en) * 1990-07-06 1995-08-22 Josef Welser Ohg Profilier- Und Stanzwerk Scaffold board and method for making the same
DE19515062A1 (de) * 1995-04-27 1996-10-31 Langer Ruth Geb Layher Gerüstboden
EP1211367A2 (fr) * 2000-11-30 2002-06-05 PONTEGGI DALMINE S.p.A. Plancher d'échafaudage et procédé pour la réalisation de celui-ci
EP1574636A2 (fr) * 2004-02-26 2005-09-14 Metsec PLC Plancher d'échafaudage
WO2006015602A1 (fr) * 2004-08-11 2006-02-16 Pf Management Holding Aps Planche d’echafaudage dotee d’un accessoire a crochets detachable

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5443137A (en) * 1990-07-06 1995-08-22 Josef Welser Ohg Profilier- Und Stanzwerk Scaffold board and method for making the same
DE19515062A1 (de) * 1995-04-27 1996-10-31 Langer Ruth Geb Layher Gerüstboden
EP1211367A2 (fr) * 2000-11-30 2002-06-05 PONTEGGI DALMINE S.p.A. Plancher d'échafaudage et procédé pour la réalisation de celui-ci
EP1574636A2 (fr) * 2004-02-26 2005-09-14 Metsec PLC Plancher d'échafaudage
WO2006015602A1 (fr) * 2004-08-11 2006-02-16 Pf Management Holding Aps Planche d’echafaudage dotee d’un accessoire a crochets detachable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023080777A1 (fr) 2021-11-02 2023-05-11 Scafom Holding B.V. Partie de plancher pour échafaudage, et système d'échafaudage

Also Published As

Publication number Publication date
EP2255046A1 (fr) 2010-12-01

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