EP1264057A1 - Dispositif de verrouillage pour echafaudage modulaire - Google Patents

Dispositif de verrouillage pour echafaudage modulaire

Info

Publication number
EP1264057A1
EP1264057A1 EP01915977A EP01915977A EP1264057A1 EP 1264057 A1 EP1264057 A1 EP 1264057A1 EP 01915977 A EP01915977 A EP 01915977A EP 01915977 A EP01915977 A EP 01915977A EP 1264057 A1 EP1264057 A1 EP 1264057A1
Authority
EP
European Patent Office
Prior art keywords
catch
locking device
ledger
locking
standard
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
EP01915977A
Other languages
German (de)
English (en)
Other versions
EP1264057B1 (fr
Inventor
Ulf Oskarsson
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.)
Haki AB
Original Assignee
Haki AB
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 Haki AB filed Critical Haki AB
Publication of EP1264057A1 publication Critical patent/EP1264057A1/fr
Application granted granted Critical
Publication of EP1264057B1 publication Critical patent/EP1264057B1/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
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements
    • E04G7/302—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members
    • E04G7/306—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are fixed at several bars or members to connect
    • E04G7/307—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are fixed at several bars or members to connect with tying means for connecting the bars or members

Definitions

  • the present invention relates to a locking device for modular scaffolding, such as building site scaffolding, mason's staging or similar, and especially to such a locking device between ledgers and standards, for preventing the components of the modular scaffolding to become disconnected from each other.
  • the locking device is springing and self-locking.
  • a previously known method for fitting ledgers (horizontal members) to standards (vertical poles) in a modular scaffolding, for example a scaffold, is to utilise e.g. screws and wedges.
  • Such fastening devices do not allow any simple and advantageous way of mounting and disassembling of the modular scaffolds.
  • Another, more advantageous method of the prior art comprises the arrangement of loops or rings on the standards, wherein ledgers are fastened by attaching hooks, provided on the ledger ends, from above into the loops.
  • the mounting is locked by means of a manual locking device.
  • This manual locking device comprises a catch, turned manually towards the standard, the catch thereby becoming fixed in its locked position by means of gravity and the friction occurring between rivet and washer, which hold the catch comprised in the locking device, and thus locks the ledger to the standard.
  • Drawbacks of locking devices according to this technique are due to their design, entailing a risk for corrosive sticking, as the catch is manufactured from an erosion-sensitive material, causing it to become very sluggish or to stick to the rivet and the washer.
  • the present invention relates to an improvement of the known locking devices, wherein the locking of ledgers to standards is made by means of a springing and self-locking locking device.
  • the present invention thus relates to a locking device between ledgers and standards for modular scaffolds or similar.
  • the locking device exhibits a spring catch between the ledger and the standard.
  • the catch is provided on the ledger and will, in its locked position, secure the ledger to the standard.
  • the catch may have the shape of a curved wire, both ends of which are arranged at the ledger, in two holes controlling the springing properties of the catch.
  • said catch is manufactured from an erosion-resistant material, such as zinc-coated or stainless spring steel, plastic or some other material suitable for the purpose.
  • FIG. 1 is a side view of one side of a ledger without a catch
  • Fig. 2 is a side view of one side of the locking device according to the invention, including a ledger and a catch
  • Fig. 3 is a side view of the other side of the locking device according to the invention, as shown in Fig. 2
  • Fig. 4 is a side view of the catch according to the invention
  • Fig. 5 is an end view of the locking device according to the invention, including a ledger and a catch
  • Fig. 6 is an end view of the catch according to the invention
  • the present invention relates to a springing and self- locking locking device, arranged between a ledger and a standard in e.g. scaffolding.
  • the locking device comprises a spring catch, preferably arranged at the exterior end of the ledger.
  • the catch may be modified to be arranged on the standard (not shown).
  • Fig. 1 shows a ledger 1 without a catch (2).
  • two holes 3 and 3' and a slot 4 are provided for mounting of the catch as shown in Fig. 2.
  • the holes 3 and 3' are spaced from each other both vertically and horizontally, for controlling the springing properties of the catch 2.
  • one of the holes 3 or 3' may be shaped like a slot (not shown).
  • the catch is arranged into said holes 3 and 3 ' in such a manner that a portion 2' of said catch 2 extends through the slot 4, as shown in Figs. 2, 3 and 5.
  • the slot 4 will limit the forward and rearward movement of the catch 2.
  • Said portion 2' of the catch 2 is configured in such a way that the catch can be operated manually between a locking position 4A, which is shown in Figs. 2 and 3, and an open, non-locking position at the end 4B of the slot.
  • the holes 3, 3' are so located that the catch 2 is resiliently pushed forward, towards the standard, in the locking position. When the catch 2 is moved rearwards, past a dead centre, it will instead spring rearwards to be maintained by itself in the open position.
  • the catch is maintained in its mounted position through spring force or by overbending.
  • Figs. 4 and 6 show a side view and an end view, respectively, of said catch 2.
  • the catch 2 When mounting the ledger 1 to the standard, the catch 2 will be in its open or its locked position. In its open position, the hooks 6 and 7 of the ledger lean be hooked, without resistance, into the loops on the standard. The catch is then switched over to its locking position. The protruding tip of the catch 2 will then be placed under the upper loop of the standard, preventing the ledger from being lifted up; thus making it securely locked. Disassembling is performed in reverse order. Assembly can also be performed with the catch in the locking position 4A.
  • the catch will then perform a self-locking function.
  • the lower loop on the standard (not shown), will then push the catch 2 a small distance in the direction towards the vertical portion 5 of the ledger 1, as the ledger is pushed on from above.
  • the catch 2 will spring back towards the standard, thereby wedging the catch 2 against the lower edge of the upper loop thus performing automatic locking.
  • the above-mentioned open, non-locking position 4B is especially advantageous when dismantling the modular scaffolding, as it enables easy unlocking of the locking device, whereby initially one end and then the other of the ledger 1 are manually unlocked, whereupon the ledger 1 is removed.
  • the above catch 2 is made of an erosion-resistant material, such as zinc-coated or stainless steel, plastic or some other material suitable for the purpose.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Clamps And Clips (AREA)
  • Lasers (AREA)
  • Laser Surgery Devices (AREA)
  • Laser Beam Processing (AREA)
  • Emergency Lowering Means (AREA)

Abstract

L'invention concerne un dispositif de verrouillage conçu pour être placé entre des boulins et des supports d'échafaudage modulaire ou d'échafaudage de ce type. Selon l'invention, ce dispositif de verrouillage présente un taquet élastique (2) placé entre le boulin (1) et le support. Ce taquet est, de préférence, situé sur le boulin et fixe, en position de verrouillage, le boulin au support. Ce taquet peut se présenter sous la forme d'un fil incurvé, dont les deux extrémités sont placées dans deux trous au niveau du boulin, ce qui permet de commander les propriétés d'élasticité du taquet. Ce dernier est, de préférence, constitué par un matériau résistant à l'érosion, tel qu'un acier inoxydable élastique ou un acier revêtu de zinc, un plastique ou tout autre matériau approprié.
EP01915977.1A 2000-03-15 2001-03-13 Moise avec dispositif de verrouillage pour echafaudage modulaire Expired - Lifetime EP1264057B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0000867A SE523130C2 (sv) 2000-03-15 2000-03-15 Låsanordning för modulställning eller liknande
SE0000867 2000-03-15
PCT/SE2001/000518 WO2001069009A1 (fr) 2000-03-15 2001-03-13 Dispositif de verrouillage pour echafaudage modulaire

Publications (2)

Publication Number Publication Date
EP1264057A1 true EP1264057A1 (fr) 2002-12-11
EP1264057B1 EP1264057B1 (fr) 2016-09-28

Family

ID=20278826

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01915977.1A Expired - Lifetime EP1264057B1 (fr) 2000-03-15 2001-03-13 Moise avec dispositif de verrouillage pour echafaudage modulaire

Country Status (7)

Country Link
EP (1) EP1264057B1 (fr)
AU (1) AU2001242922A1 (fr)
DK (1) DK1264057T3 (fr)
NO (1) NO320920B1 (fr)
PL (1) PL207828B1 (fr)
SE (1) SE523130C2 (fr)
WO (1) WO2001069009A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO20093035A1 (no) * 2009-09-21 2011-03-22 Delta System As Koplingsanordning for sammenfoyning av vertikale og horisontale konstruksjonsdeler for bygningsstillas, tildekningskonstruksjoner, telt, lagerhaller etc.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4197642A (en) 1977-09-29 1980-04-15 Melvin Wallshein Bent wire orthodontic spring clip
US5988317A (en) 1998-09-21 1999-11-23 Riding; Gary Modular hinged scaffold unit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3874802A (en) * 1973-03-30 1975-04-01 Edward George Lindsey Locking devices
US4592689A (en) * 1984-05-25 1986-06-03 Leitzke Rue S Ring spring cotter
US4630956A (en) * 1984-10-05 1986-12-23 Safway Scaffolds Company Of Houston Scaffolding connection and retention device and method
DE4237442A1 (de) * 1992-11-06 1994-05-11 Scozzari Agostino Bolzensicherung
GB9602816D0 (en) * 1996-02-12 1996-04-10 Nolan James G Ladder tie

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4197642A (en) 1977-09-29 1980-04-15 Melvin Wallshein Bent wire orthodontic spring clip
US5988317A (en) 1998-09-21 1999-11-23 Riding; Gary Modular hinged scaffold unit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO0169009A1

Also Published As

Publication number Publication date
EP1264057B1 (fr) 2016-09-28
PL358003A1 (en) 2004-08-09
SE0000867D0 (sv) 2000-03-15
NO20024203D0 (no) 2002-09-03
AU2001242922A1 (en) 2001-09-24
WO2001069009A1 (fr) 2001-09-20
DK1264057T3 (en) 2017-01-16
SE523130C2 (sv) 2004-03-30
PL207828B1 (pl) 2011-02-28
SE0000867L (sv) 2001-09-16
NO320920B1 (no) 2006-02-13
NO20024203L (no) 2002-11-13

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