EP0581825A1 - Element d'echafaudage et plate-forme de travail. - Google Patents

Element d'echafaudage et plate-forme de travail.

Info

Publication number
EP0581825A1
EP0581825A1 EP92909112A EP92909112A EP0581825A1 EP 0581825 A1 EP0581825 A1 EP 0581825A1 EP 92909112 A EP92909112 A EP 92909112A EP 92909112 A EP92909112 A EP 92909112A EP 0581825 A1 EP0581825 A1 EP 0581825A1
Authority
EP
European Patent Office
Prior art keywords
swaged
belled
work platform
post
scaffolding
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.)
Granted
Application number
EP92909112A
Other languages
German (de)
English (en)
Other versions
EP0581825B1 (fr
EP0581825A4 (fr
Inventor
Christopher Binyon
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.)
ADWIN PRODUCTS PTY Ltd
Original Assignee
ADWIN PRODUCTS Pty 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 ADWIN PRODUCTS Pty Ltd filed Critical ADWIN PRODUCTS Pty Ltd
Publication of EP0581825A1 publication Critical patent/EP0581825A1/fr
Publication of EP0581825A4 publication Critical patent/EP0581825A4/fr
Application granted granted Critical
Publication of EP0581825B1 publication Critical patent/EP0581825B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E04G1/14—Comprising essentially pre-assembled two-dimensional frame-like elements, e.g. of rods in L- or H-shape, with or without bracing
    • 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
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements
    • E04G7/301—Scaffolding bars or members with non-detachably fixed coupling elements for connecting bars or members which are parallel or in end-to-end relation

Definitions

  • This invention relates to scaffolding arrangements and more particularly to scaffolding arrangements which can be assembled to make work platforms constructed of a number of scaffolding units.
  • Scaffolding arrangements are very important in all facets of building construction. They can be used on the outside buildings for instance for bricklayers and painters and also can be used inside buildings for plasterboard fixers, ceiling painters and the like. To be useful for building constructions however scaffolding units must be light and easy to transport easy to assemble and when assembled be sufficiently strong for their required purpose.
  • This invention proposes a scaffolding unit and a work platform made up of scaffolding units which is economic to construct and is sufficiently strong and sturdy for building work.
  • This invention proposes a method by which these problems can be overcome.
  • a scaffolding unit comprising two vertical posts and at least two horizontal cross bars, the cross bars being rigidly fastened at their respective ends to respective posts each post being hollow and cylindrical and having an upper end swaged into a reduced diameter and a lower end belled out to an increased diameter such that the swaged upper end fits into a corresponding belled end of an adjacent scaffolding unit, the post and bars being constructed from thin walled steel tubing.
  • the work platform may further include a locking bar including saddles at each end adapted to fit over the cross bars of parallel spaced apart scaffolding units.
  • each scaffolding unit may each extend for approximately 10% of the length of the vertical posts.
  • the important feature of such a scaffolding unit is to be able to get rigid joints between adjacent scaffolding units and this is done by swaging one end of the thin walled steel tubing of the post and belling the other end so that the two fit accurately together.
  • the length of the swaged portion is equal to the length of the belled portion on each post such that the lower end of the vertical post bears against an external shoulder of the swaged portion of a connected post and the upper end of the vertical post bears against an internal shoulder of the belled portion of a connected post whereby to provide rigidity to the work platform.
  • the thin walled steel tube may have an outer diameter of 44.5mm with a 1.6mm wall of thickness.
  • the swaged ends may be reduced to 41.4mm in diameter and the internal diameter of the belled portion may be increased from 41.3mm to 42.4mm. This allows 1 mm of free play for ease of assembly and disassembly.
  • FIG. 1 shows a side view of a scaffolding unit according to this invention
  • FIG.2 shows a cross sectional view of one post of a scaffolding unit according to this invention
  • FIG.3 shows a cross sectional detail of the joining of two posts, arad
  • FIG.4 shows a work platform assembled using scaffolding units of the present invention.
  • a scaffolding unit as shown in Fig. 1 comprises vertical posts 1 and horizontal cross bars 2.
  • the cross bars 2 are welded to the vertical posts 1 by welding at 3.
  • Preferably the ends of the cross bars are flattened to facilitate welding to the cylindrical posts.
  • the post 1 comprises a thin walled 4 steel tubing with a swaged upper end generally shown as 5 and a belled lower end generally shown as 6.
  • the swaged upper end 5 has a region 7 of reduced diameter which fits into a region 8 of the belled portion of increased diameter.
  • a work platform construction may comprise pairs of scaffolding units 20 joined together to provide a vertical construction in this case four scaffolding units high.
  • planks 21 on the cross bars may be placed on the cross bars to provide a work platform and to maintain the top of the work platform rigid and to put side rails there may be a locking bar 22 extending between parallel spaced apart cross bars 23.
  • a scaffolding unit which is relatively simple to construct but can be used to provide a rigid structure for making a work platform for building construction and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Movable Scaffolding (AREA)
  • Materials For Medical Uses (AREA)

Abstract

On décrit une plate-forme de travail et un élément d'échafaudage. La plate-forme de travail est composée d'un certain nombre d'éléments d'échafaudage assemblés en différentes configurations. Chaque élément d'échafaudage comprend deux montants (1) et au moins deux traverses (2). Les montants présentent des extrémités inférieures évasées (6) et une extrémité supérieure emboutie (5) qui s'adaptent les unes aux autres pour former l'assemblage. L'on accroît la rigidité par l'intermédiaire de deux points de contact espacés au niveau des joints.
EP92909112A 1991-04-26 1992-04-24 Element d'echafaudage et plate-forme de travail Expired - Lifetime EP0581825B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPK581891 1991-04-26
AUPK5818/91 1991-04-26
PCT/AU1992/000184 WO1992019870A1 (fr) 1991-04-26 1992-04-24 Element d'echafaudage et plate-forme de travail

Publications (3)

Publication Number Publication Date
EP0581825A1 true EP0581825A1 (fr) 1994-02-09
EP0581825A4 EP0581825A4 (fr) 1994-10-12
EP0581825B1 EP0581825B1 (fr) 1996-12-04

Family

ID=3775367

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92909112A Expired - Lifetime EP0581825B1 (fr) 1991-04-26 1992-04-24 Element d'echafaudage et plate-forme de travail

Country Status (7)

Country Link
EP (1) EP0581825B1 (fr)
AT (1) ATE145959T1 (fr)
CA (1) CA2109200A1 (fr)
DE (1) DE69215670D1 (fr)
NZ (1) NZ242482A (fr)
WO (1) WO1992019870A1 (fr)
ZA (1) ZA922968B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1000890C2 (nl) * 1995-07-27 1997-01-31 Sgb Holdings Buizensysteem in het bijzonder voor toepassing in een steiger- constructie, alsmede buis toepasbaar in het buizensysteem.
US9393972B2 (en) 2012-05-09 2016-07-19 Wabtec Holding Corp. Modular support frame for railway vehicle equipment
CN115059666A (zh) * 2022-06-13 2022-09-16 保利长大工程有限公司 一种连接结构及工程建设用施工支架

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2257389A1 (de) * 1972-11-23 1974-06-20 Fix Betonbau Schalung Ruest Teckverbindung fuer stahlrohrstuetzen, rohrgerueste und dgl
EP0004806A1 (fr) * 1978-03-29 1979-10-17 SOMEFRAN Société d'Exploitation des BREVETS MEFRAN Eléments d'échafaudage munis d'un dispositif de raccordement
EP0348885A2 (fr) * 1988-07-01 1990-01-03 Langer, Ruth, geb. Layher Elément d'échafaudage non-vertical avec un dispositif de fixation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2043498A (en) * 1934-06-16 1936-06-09 Uecker Equipment Company Scaffold
US2311988A (en) * 1940-11-12 1943-02-23 Twentleth Century Fox Film Cor Scaffolding
BE755152A (fr) * 1970-05-28 1971-02-01 Laffargue Jacques Cadre rigide pour la construction d'edifices demontables diverset notamment d'un echafaudage-tour
GB2087466B (en) * 1980-11-13 1984-05-31 Thomas Ltd Martin Scaffold
FR2529931B1 (fr) * 1982-07-06 1985-07-05 Self Lock Echafaudages Element de construction d'echafaudage prefabrique a compensation automatique de jeux

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2257389A1 (de) * 1972-11-23 1974-06-20 Fix Betonbau Schalung Ruest Teckverbindung fuer stahlrohrstuetzen, rohrgerueste und dgl
EP0004806A1 (fr) * 1978-03-29 1979-10-17 SOMEFRAN Société d'Exploitation des BREVETS MEFRAN Eléments d'échafaudage munis d'un dispositif de raccordement
EP0348885A2 (fr) * 1988-07-01 1990-01-03 Langer, Ruth, geb. Layher Elément d'échafaudage non-vertical avec un dispositif de fixation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9219870A1 *

Also Published As

Publication number Publication date
EP0581825B1 (fr) 1996-12-04
WO1992019870A1 (fr) 1992-11-12
DE69215670D1 (de) 1997-01-16
CA2109200A1 (fr) 1992-10-27
ATE145959T1 (de) 1996-12-15
NZ242482A (en) 1994-11-25
ZA922968B (en) 1992-12-30
EP0581825A4 (fr) 1994-10-12

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