EP1211367A2 - Plancher d'échafaudage et procédé pour la réalisation de celui-ci - Google Patents

Plancher d'échafaudage et procédé pour la réalisation de celui-ci Download PDF

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Publication number
EP1211367A2
EP1211367A2 EP01127183A EP01127183A EP1211367A2 EP 1211367 A2 EP1211367 A2 EP 1211367A2 EP 01127183 A EP01127183 A EP 01127183A EP 01127183 A EP01127183 A EP 01127183A EP 1211367 A2 EP1211367 A2 EP 1211367A2
Authority
EP
European Patent Office
Prior art keywords
elements
scaffolding
quadrilateral
hook
realised
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Withdrawn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
EP01127183A
Other languages
German (de)
English (en)
Other versions
EP1211367A3 (fr
Inventor
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.)
PONTEGGI DALMINE SpA
Original Assignee
PONTEGGI DALMINE 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 PONTEGGI DALMINE SpA filed Critical PONTEGGI DALMINE SpA
Publication of EP1211367A2 publication Critical patent/EP1211367A2/fr
Publication of EP1211367A3 publication Critical patent/EP1211367A3/fr
Withdrawn legal-status Critical Current

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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

Definitions

  • the present invention refers to a scaffolding platform and to a procedure for the realisation thereof.
  • scaffolding is used which allows access to zones of the structure itself which are otherwise out of reach.
  • scaffolding comprises a frame made of tubular elements which supports a plurality of platforms upon which workers can move and work.
  • Traditional platforms comprise a flat element, for example with a rectangular base, which carries elements for connecting to the frame on the two smaller sides.
  • connection elements comprise a first portion, which is connected to the flat element, to which are welded second hook-shaped portions realised through a sheet with a greater thickness with respect to the sheet which constitutes the first portion to guarantee high mechanical properties.
  • the technical task which the present invention proposes is, therefore, that of eliminating the quoted technical drawbacks of the prior art, realising a scaffolding platform which is substantially very cost-effective and stronger, in particular compared to platforms of the traditional type.
  • a purpose of the invention is that of realising a scaffolding platform which has a flat element with high mechanical properties whilst at the same time having a lower, or at least the same, weight as traditional flat elements.
  • Another purpose of the invention is that of realising a scaffolding platform which has a connection element realised without welding and through a single sheet having a substantially reduced thickness, whilst still guaranteeing high mechanical properties.
  • the last but not least purpose of the invention is that of realising platforms for scaffolding with mechanical characteristics which are at least comparable with those of said traditional platforms, whilst still guaranteeing a reduced weight and a lower time and difficulty of construction.
  • a scaffolding platform comprising a flat element having an element for the connection to said scaffolding at the opposite ends, characterised in that each of said connection elements comprises a body defined by a single folded sheet having stiffening means both on a first portion associated with said flat element, and on second hook-shaped portions which can be associated with said scaffolding.
  • the object of the invention is also a procedure for realising a connection element for a scaffolding platform, characterised in that it comprises a first cutting step, wherein a sheet is cut so as to define a first substantially quadrilateral element from which transversally protrude second substantially quadrilateral elements, a second folding step, wherein the side ends of said first substantially quadrilateral element are substantially folded square, a third folding step, wherein the side edges of said second quadrilateral elements are substantially folded square on the opposite side with respect to said side ends of said first substantially quadrilateral element, a fourth folding step, wherein said second substantially quadrilateral elements are substantially folded square on the opposite side with respect to said side ends of said first substantially quadrilateral element both at the connection between said second elements and said first element and in its own intermediate portion so as to define hook-shaped portions.
  • the invention also has as its object a procedure for the realisation of a flat element of a scaffolding platform, comprising a step of cutting a sheet and a subsequent step of folding said sheet so as to define two tubular elements at the opposite ends of said plate, characterised in that it comprises a profiling step of said plate, wherein substantially longitudinal ribs are realised, and an embossing step of the sheet itself, wherein substantially longitudinal are realised.
  • a scaffolding platform is shown wholly indicated with the reference numeral 1.
  • the platform 1 comprises a flat element 2 with a substantially rectangular base, which has suitable elements 3 for connecting to the scaffolding on the two smaller sides.
  • connection elements 3 comprise a body defined by a single sheet which is folded to define a first portion 4 associated with the flat element 2, and second hook-shaped portions 5 which can be associated with the scaffolding.
  • connection element 3 comprises three hook-shaped portions 5; it is, however, clear that in other examples the portions 5 can be of whatever number.
  • the hook-shaped portions 5 each have stiffening means which give them high mechanical properties, even though they are made out of sheets with a substantially reduced thickness.
  • the stiffening means comprises two ribs 6 which extend from the second hook-shaped portions 5.
  • the ribs 6 stretch along the opposite free edges of the portions 5 and extend along the convex side of the same portions 5.
  • the stiffening means also comprises a first flattened portion 7 realised at the folded end of the second hook-shaped portions 5 connected to the first portion 4.
  • the stiffening means comprises, moreover, a second flattened portion 8 realised at an intermediate fold of the second hook-shaped portions.
  • the first portion 4 comprises a wall 9 from which an edge 10 protrudes which also serves to stiffen the connection element 3.
  • the edge 10 protrudes from a side 11 of the wall 9 opposite the side from which the second hook-shaped portions 5 protrude in a substantially opposite direction to the second portions 5 themselves.
  • three spacers 12 protrude from the wall 9 of the first portion 4 towards each of the second hook-shaped portions.
  • the spacers 12 and the first portion 4 are made in a single piece for example through plastic deformation of the wall 9 which is possibly carried out after having made some notches on the wall 9.
  • the wall 9 has a through opening 18 wherein a wedge for locking the platform 1 to the tubular scaffolding elements is housed.
  • the wedge has enlargements and/or locking elements which allow the aforementioned locking.
  • the flat element 2 comprises a central portion 13 with folded ends which define two tubular stiffening elements 14 which constitute seats in which to house the portion 4 of the connection element 2.
  • the element 2 has, when it is of a particularly large size (in particular width), a further central tubular element defined by a sheet which is folded over and welded to the central element 13 itself.
  • the central portion 13 has a plurality of longitudinal ribs 16.
  • a rib 16 is arranged at the centre of the flat element 2 and other ribs 16 extend parallel to the first.
  • the ribs 16 are all equally spaced from each other or else the first and/or last rib have different distances whilst all the others remain equally spaced.
  • the central portion 13 also has a plurality of bosses 17 which are arranged between the ribs 16 and are all longitudinally aligned either individually or in groups.
  • the present invention also has as its object a procedure for realising a scaffolding platform.
  • connection elements 3 are realised and other steps in which flat elements 2 are realised.
  • connection elements 3 are connected to the flat elements 2 by stitch welding.
  • the procedure according to the present invention in the part in which the connection elements are realised, comprises a first cutting step, wherein a sheet is cut so as to define a contoured element 20.
  • the contoured element 20 comprises a first substantially quadrilateral element 21 from which second substantially quadrilateral elements 22 protrude transversally.
  • side edges 24 of the second quadrilateral elements 22 are substantially folded square on the opposite side with respect to the side edges 23 of the first element 21.
  • the second substantially quadrilateral elements 22 are substantially folded square on the opposite side with respect to the side ends 23 of the first quadrilateral element 21.
  • the second quadrilateral elements 22 are folded at their connection portion to the first quadrilateral element 21 and at an intermediate portion, so as to define hook-shaped portions.
  • an edge 10 is also folded and stiffeners are realised.
  • relieves 25 are realised in the connection zone between the second quadrilateral elements 22 and the first quadrilateral element 21.
  • the relieves 25 allow the subsequent folding steps to be carried out without the danger that cracks and/or damage appear in the sheet.
  • spacers 12 are realised through plastic deformation of a wall of the connection element 3.
  • a shearing step can be foreseen wherein two notches are made on the sides of a zone to be punched.
  • two contoured elements 20 are simultaneously cut from a single sheet, with the second quadrilateral elements 22 of one contoured element 20 which are interposed between the second quadrilateral elements 22 of another contoured element 20.
  • the procedure according to the present invention in the part in which flat elements 2 are realised, comprises a cutting step of a sheet and a subsequent folding step of the same sheet so as to define a central portion 13 having two tubular elements 14 at the opposite ends.
  • longitudinal ribs 16 are realised on the central portion 13, and possibly also on part of the tubular portions 14.
  • bosses which are also arranged substantially longitudinally on the flat element or surface 2 and are substantially truncated-cone-shaped are made on the central portion and possibly also on part of the side portion 14.
  • the scaffolding platform according to the invention is particularly advantageous since it is cost-effective and, moreover, can replace platforms of the traditional type.
  • the procedure for realising a scaffolding platform allows the aforementioned platforms to be realised in a more cost-effective manner with respect to the traditional procedures and requires connections which are welded only to fix the connection elements to the flat element, whereas both the flat element and the connection element have no welded components since they are each realised in a single piece.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Ladders (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Electric Cable Installation (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
EP01127183A 2000-11-30 2001-11-16 Plancher d'échafaudage et procédé pour la réalisation de celui-ci Withdrawn EP1211367A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20002589 IT1319489B1 (it) 2000-11-30 2000-11-30 Tavola per ponteggio e procediemnto per la sua realizzazione
ITMI002589 2000-11-30

Publications (2)

Publication Number Publication Date
EP1211367A2 true EP1211367A2 (fr) 2002-06-05
EP1211367A3 EP1211367A3 (fr) 2003-10-08

Family

ID=11446152

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01127183A Withdrawn EP1211367A3 (fr) 2000-11-30 2001-11-16 Plancher d'échafaudage et procédé pour la réalisation de celui-ci

Country Status (2)

Country Link
EP (1) EP1211367A3 (fr)
IT (1) IT1319489B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009116096A1 (fr) * 2008-03-19 2009-09-24 Marcegaglia Builings S.P.A. Plaque métallique pour échafaudage et son procédé de fabrication
ITPD20090105A1 (it) * 2009-04-23 2010-10-24 Pm S A S Di Pizzolato Giorgio & C Dispositivo di aggancio e supporto per una tavola per ponteggi e tavola adatta al dispositivo

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2485598A3 (fr) * 1980-06-26 1981-12-31 Fap Fabrica Attrezature Prefab Plate-forme pour echafaudages tubulaires metalliques
CH644925A5 (en) * 1981-06-29 1984-08-31 Attrezzature Prefabbricate Per Board for tubular metal scaffolding
CA2158199A1 (fr) * 1995-09-13 1997-03-14 Austin Phillip Page Planche pour echafaudage
FR2777308A1 (fr) * 1998-04-10 1999-10-15 Edac Plateau pour echafaudage metallique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2485598A3 (fr) * 1980-06-26 1981-12-31 Fap Fabrica Attrezature Prefab Plate-forme pour echafaudages tubulaires metalliques
CH644925A5 (en) * 1981-06-29 1984-08-31 Attrezzature Prefabbricate Per Board for tubular metal scaffolding
CA2158199A1 (fr) * 1995-09-13 1997-03-14 Austin Phillip Page Planche pour echafaudage
FR2777308A1 (fr) * 1998-04-10 1999-10-15 Edac Plateau pour echafaudage metallique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009116096A1 (fr) * 2008-03-19 2009-09-24 Marcegaglia Builings S.P.A. Plaque métallique pour échafaudage et son procédé de fabrication
ITPD20090105A1 (it) * 2009-04-23 2010-10-24 Pm S A S Di Pizzolato Giorgio & C Dispositivo di aggancio e supporto per una tavola per ponteggi e tavola adatta al dispositivo

Also Published As

Publication number Publication date
IT1319489B1 (it) 2003-10-20
EP1211367A3 (fr) 2003-10-08
ITMI20002589A1 (it) 2002-05-30

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