EP0777804B1 - Dispositif pour echafaudage - Google Patents

Dispositif pour echafaudage Download PDF

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Publication number
EP0777804B1
EP0777804B1 EP95930063A EP95930063A EP0777804B1 EP 0777804 B1 EP0777804 B1 EP 0777804B1 EP 95930063 A EP95930063 A EP 95930063A EP 95930063 A EP95930063 A EP 95930063A EP 0777804 B1 EP0777804 B1 EP 0777804B1
Authority
EP
European Patent Office
Prior art keywords
fastener
wedge
rim
locking means
strut
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.)
Expired - Lifetime
Application number
EP95930063A
Other languages
German (de)
English (en)
Other versions
EP0777804A1 (fr
Inventor
Martin Huseboe
Johnny SKÖLD
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.)
Alustar AS
Original Assignee
Alustar AS
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 Alustar AS filed Critical Alustar AS
Publication of EP0777804A1 publication Critical patent/EP0777804A1/fr
Application granted granted Critical
Publication of EP0777804B1 publication Critical patent/EP0777804B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements
    • E04G7/32—Scaffolding bars or members with non-detachably fixed coupling elements with coupling elements using wedges
    • 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 invention relates to a device for a scaffold of the kind comprising vertical struts or spires, horizontal struts which may be cantilever struts each supported by a diagonal strut which, at each end, is provided with fasteners for connection to rims on horizontal struts and spires in the junction points of the scaffold, and where the interconnection between diagonal strut fastener and rim is secured by means of a locking means, which may have the form of a wedge or another insertion means, e.g. a bolt passing through registering wedge/bolt accommodating hole portions of holes in diagonal strut fastener and rim.
  • the wedge acts as a force transferring means for pressure forces and accommodates the entire pressure load. Consequently, the wedge must be dimensioned correspondingly and, therefore, it becomes voluminous and heavy.
  • Each wedge is connected temporarily (prior to the mounting) to the diagonal strut fastener, and during the mounting the wedge is often operated manually from the opposite end of the diagonal strut, and a heavy wedge will then be rather unwieldy.
  • EP-A-0 105 500 discloses a connector for post and runner type scaffolding, the connector is adapted to engage a bracket affixed to a scaffolding post. In use, the connector abuts forcefully against a convex surface of the post by means of a wedge acting through the bracket.
  • a diagonal strut may be handled in such a way that the operator holds one end of the diagonal strut while he tries to interconnect its upper fastener carrying the wedge and an overlying rim on a spire, the lower end of the latter occupying a position above the ground and being connected to the outer end of a jutting-out strut.
  • the branches of the bifurcated strut fastener are to be placed one above and one below the rim, three wedge accommodating hole portions vertically aligned; moreover, the lower end of the wedge must simultaneously take a position immediately above said hole of the rim. This is very difficult to manage by traditional scaffold components.
  • a primary object of the present invention has, therefore, been to design and shape the diagonal fastener such in relation to adjacent elements and members of the scaffold that transfer of pressure forces between diagonal strut and horizontal strut/spire is secured, without loading a locking means such as a wedge, bolt or a similar connecting insertion means in the junction point of the scaffold.
  • a device for a scaffold comprising vertical struts and horizontal struts each supported by a diagonal strut, said device comprising a rim to be connected on a strut at the junction point of the scaffold, a fastener to be connected to the rim and to the end of said diagonal strut and locking means for securing the interconnection between fastener and rim, passing through holes in the fastener and in the rim for accommodating said locking means, characterised in that the fastener is formed with at least one first land area adapted to rest against an opposing, adjacent face portion of a scaffold strut or spire and at least one second land area adapted to rest against an opposing adjacent face portion on the rim.
  • the vertical struts may be spires.
  • the horizontal struts may be jetting out struts.
  • the wedge, bolt or another locking means may be formed such that it has a first longitudinal portion forming an obtuse angle in relation to the another longitudinal portion.
  • Such an angled/curved wedge/bolt may, prior to the mounting, be tilted rearwardly and take a temporarily stable position of readiness, so that the lower end carrying a tube rivet occupies the desired position just below the upper branch of the bifurcated diagonal strut fastener.
  • the diagonal strut fastener through the strut may be subjected to an appropriate displacement movement, during which the diagonal strut fastener for instance impinges slightly against the adjacent spire portion, putting the upwardly extending, rearwardly swung portion into an adequate motion, so that the wedge falls into position within the registering hole portions of the holes in the bifurcated diagonal strut and the hole in the rim.
  • a diagonal strut 1 is connected to a bifurcated diagonal strut fastener 2 by means of a lateral bolt 13.
  • the diagonal strut fastener's 2 upper branch is indicated at 2' and the lower one at 2".
  • the branches 2', 2" of the bifurcated fastener 2 are each formed with a wedge accommodating, vertically through-going hole 3' and 3", respectively, which in size and shape is adapted to accommodate a wedge, generally denoted by means of the reference numeral 4, said wedge 4, in the position of use, figure 1, takes a substantially vertical position.
  • the wedge 4 is curved repectively angled in the longitudinal direction and, in the position of use, has an upper portion 4' and a lower portion 4", said portions 4', 4" forming an obtuse angle with each other.
  • Figure 4 shows how the wedge's curvature/angular course can be utilized.
  • the wedge is tilted rearwardly (in relation to the junction point of the scaffold, figure 1), taking a position of readiness, from where it with relative ease should be tilted forwardly in order to fall down into vertically registering hole portions of holes 3', 3" in branches 2', 2" of the bifurcated fastener 2 and an intermediate hole 5 in a rim 6 on a scaffold spire 7, figure 1.
  • wedge 4 is provided with a lateral tube rivet 8 which is placed in a hole in the wedge subsequent to the passage of the lower portion 4" of the wedge 4" through the hole 3' of the upper branch 2', so that the wedge 4 thereafter can not be pulled out of its engagement with the diagonal strut fastener 2, whereafter wedge 4 and diagonal strut 1,2 constitute an assembly facilitating the subsequent mounting operations.
  • a locking cotter 9 is inserted into the tube rivet 8.
  • the tube rivet 8 has a larger axial length than the width of the upper hole in the bifurcated diagonal strut fastener, and the lower end of the wedge 4 can, consequently, not get lost by being pulled upwardly.
  • the lower hole i.e. the hole in the lower branch of the bifurcated diagonal strut fastener 2 will, of course, have so large dimensions in the lateral direction of the wedge 4 that the wedge's lower end and its tube rivet 8 may pass therethrough.
  • the diagonal strut fastener 2 is formed with land areas 10, 10', 11, 11' adapted to rest pressure force transferringly partly against a face 7' on the spire 7 and partly against a face 6' on the rim 6.
  • first land areas 10, 10' on the diagonal strut fastener 2 are formed on the outer end edge of the two branches 2', 2" in the form of projecting mouldings engaging into vertical grooves or flutes formed in the opposing rim portion and the bottom portion thereof forming a land area.
  • Second land area 11 forms an angle different from a right angle with a vertical plane through the wedge accommodating holes 3', 3" of the branches 2', 2".
  • the design, shaping and mutually positioning of the pressure force transferring land areas/stop faces cooperating in pairs are, in other respects, such that these are pressed toward each other with a force substantially proportional with the pressure forces to be transferred.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Clamps And Clips (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Electric Cable Installation (AREA)
  • Movable Scaffolding (AREA)
  • Bridges Or Land Bridges (AREA)
  • Ladders (AREA)

Claims (10)

  1. Dispositif pour un échafaudage comprenant des barres verticales ou montants (7) et des barres horizontales supportées chacune par une barre oblique (1), ledit dispositif comprenant une collerette (6) à connecter sur une barre verticale (7) à un point de jonction de l'échafaudage, une attache (2) à connecter à la collerette (6) et à l'extrémité de ladite barre oblique (1), et un élément de verrouillage (4) pour bloquer l'interconnexion entre l'attache (2) et la collerette (6),des trous traversants (3',3",5) étant prévus dans l'attache (2) et dans la collerette (6) pour recevoir ledit élément de verrouillage (4), caractérisé en ce que ladite attache (2) présente au moins une première surface de portée (10,10') prévue pour s'appuyer contre une portion de face adjacente (7') d'une barre ou d'un montant d'échafaudage (7) et au moins une deuxième surface de portée (11,11') prévue pour s'appuyer contre une portion de face adjacente opposée (6') sur la collerette (6).
  2. Dispositif selon la revendication 1, caractérisé en ce que ladite au moins une première et ladite au moins une deuxième surfaces de portée (10,10',11,11') sur ladite attache (2) ont chacune une étendue verticale dans la position d'utilisation.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que ladite au moins une première surface de portée (10,10') sur ladite attache (2) est constituée par une portion en forme de languette qui s'engage dans une portion en forme de rainure (7') prévue dans la barre verticale (7), la languette (10,10') s'appuyant contre le fond de la rainure (7').
  4. Dispositif selon la revendication 1 ou 2, caractérisé en ce que ladite au moins une première surface de portée sur l'attache (2) est constituée par une portion en forme de rainure dans laquelle s'engage une portion en forme de languette prévue sur la barre verticale (7),la languette s'appuyant contre le fond de la rainure.
  5. Dispositif selon une quelconque des revendications précédentes, caractérisé en ce que ladite au moins une deuxième surface de portée (11) définit un angle différent d'un angle droit avec un plan central passant par les trous (3',3") de réception dudit élément de verrouillage (4) des branches (2',2").
  6. Dispositif selon une quelconque des revendications précédentes, caractérisé en ce que ledit élément de verrouillage (4) est incurvé, respectivement coudé dans la direction longitudinale.
  7. Dispositif selon une quelconque des revendications précédentes, dans lequel ledit élément de verrouillage (4) comprend un coin.
  8. Dispositif selon la revendication 7, dans lequel ledit élément de verrouillage (4) comporte un crochet à son extrémité supérieure pour empêcher le collage dudit coin dans lesdits trous (3',3",5) de l'attache (2) et de la collerette (6).
  9. Dispositif selon la revendication 7 ou 8, caractérisé en ce que le coin (4) est une clavette à mentonnet.
  10. Dispositif selon une quelconque des revendications précédentes, caractérisé en ce que l'attache (2) est coudée, respectivement incurvée dans la direction longitudinale et comporte, à son extrémité, une partie fourchue (2',2") ayant des trous (3',3") de réception dudit élément de verrouillage (4) tandis que, à son extrémité opposée, elle comporte une partie de connexion fourchue pour l'extrémité d'une barre oblique (1), ladite partie de connexion fourchue étant angulairement décalée par rapport à la partie fourchue mentionnée en premier (2',2").
EP95930063A 1994-08-22 1995-08-21 Dispositif pour echafaudage Expired - Lifetime EP0777804B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO943095A NO179877C (no) 1994-08-22 1994-08-22 Anordning ved diagonalstagfeste for stillasformål
NO943095 1994-08-22
PCT/NO1995/000139 WO1996006251A1 (fr) 1994-08-22 1995-08-21 Dispositif pour echafaudage

Publications (2)

Publication Number Publication Date
EP0777804A1 EP0777804A1 (fr) 1997-06-11
EP0777804B1 true EP0777804B1 (fr) 1999-11-17

Family

ID=19897327

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95930063A Expired - Lifetime EP0777804B1 (fr) 1994-08-22 1995-08-21 Dispositif pour echafaudage

Country Status (7)

Country Link
EP (1) EP0777804B1 (fr)
AU (1) AU686448B2 (fr)
CA (1) CA2198249A1 (fr)
DE (1) DE69513405T2 (fr)
DK (1) DK0777804T3 (fr)
NO (1) NO179877C (fr)
WO (1) WO1996006251A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140030009A1 (en) * 2011-06-01 2014-01-30 Wilhelm Layher Verwaltungs-Gmbh Arrangement of a scaffolding component and of a vertical scaffolding element
US9109370B2 (en) 2011-04-05 2015-08-18 Wilhelm Layher Verwaltungs-Gmbh Scaffolding post

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2878273B1 (fr) * 2004-11-24 2007-02-23 Comabi Snc Dispositif d'assemblage d'elements d'un echafaudage tubulaire
NO333028B1 (no) * 2010-11-08 2013-02-18 Alustar As Fremgangsmate for a lase en baerekrans til en stillassoyle.
CN108131009A (zh) * 2018-02-12 2018-06-08 陶冶 一种竖向斜杆敲击扣件
KR101905363B1 (ko) * 2018-04-30 2018-10-05 김봉민 계량된 수평비계를 이용한 건축용 비계장치
NO345174B1 (no) * 2018-07-27 2020-10-26 Gunnar Strand Knutepunktforbindelse for innfesting av horisontale og diagonale stag til et vertikalt stag i et stillassystem.
KR102054706B1 (ko) * 2018-09-14 2019-12-11 주식회사 네오 하이브리드 비계 구조물, 이를 위한 일체형 연결구

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8112653U1 (de) * 1981-04-29 1981-11-05 Layher, Eberhard, 7129 Güglingen "geruestelement"
US4493578A (en) * 1982-09-30 1985-01-15 Harsco Corporation Scaffolding connector and system
US5207527A (en) * 1992-04-13 1993-05-04 Warren Duncan System scaffold wedging arrangement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9109370B2 (en) 2011-04-05 2015-08-18 Wilhelm Layher Verwaltungs-Gmbh Scaffolding post
US20140030009A1 (en) * 2011-06-01 2014-01-30 Wilhelm Layher Verwaltungs-Gmbh Arrangement of a scaffolding component and of a vertical scaffolding element
US8978823B2 (en) * 2011-06-01 2015-03-17 Wilhelm Layher Verwaltungs-Gmbh Arrangement of a scaffolding component and of a vertical scaffolding element
US9080335B2 (en) 2011-06-01 2015-07-14 Wilhelm Layher Verwaltungs-Gmbh Scaffolding component with at least one connection head and method for fastening a scaffolding component having at least one connection head to a vertical scaffolding element

Also Published As

Publication number Publication date
DK0777804T3 (da) 2000-05-15
NO943095D0 (no) 1994-08-22
AU686448B2 (en) 1998-02-05
CA2198249A1 (fr) 1996-02-29
NO943095L (no) 1996-02-23
NO179877B (no) 1996-09-23
EP0777804A1 (fr) 1997-06-11
NO179877C (no) 1997-01-08
AU3356795A (en) 1996-03-14
WO1996006251A1 (fr) 1996-02-29
DE69513405D1 (de) 1999-12-23
DE69513405T2 (de) 2000-06-15

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