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WO2012136697A1 - Élément de raccordement destiné à un système d'échafaudage modulaire à niches cunéiformes - Google Patents

Élément de raccordement destiné à un système d'échafaudage modulaire à niches cunéiformes Download PDF

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Publication number
WO2012136697A1
WO2012136697A1 PCT/EP2012/056149 EP2012056149W WO2012136697A1 WO 2012136697 A1 WO2012136697 A1 WO 2012136697A1 EP 2012056149 W EP2012056149 W EP 2012056149W WO 2012136697 A1 WO2012136697 A1 WO 2012136697A1
Authority
WO
WIPO (PCT)
Prior art keywords
wedge
connection element
element according
wedge surface
pocket
Prior art date
Application number
PCT/EP2012/056149
Other languages
German (de)
English (en)
Inventor
Gerald Merkel
Original Assignee
G.M.B Trade and Service 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 G.M.B Trade and Service Ltd. filed Critical G.M.B Trade and Service Ltd.
Publication of WO2012136697A1 publication Critical patent/WO2012136697A1/fr

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
    • E04G7/32—Scaffolding bars or members with non-detachably fixed coupling elements with coupling elements using wedges

Definitions

  • connection element for a Keiltaschenmodulgerüstsystem according to the preamble of claim 1.
  • the connection elements according to the present invention are designed to be received in corresponding wedge pockets.
  • the individual connection element is wedge-shaped, wherein the wedge next to the lateral surfaces has a front wedge surface and a rear wedge surface, which are specifically designed according to the invention.
  • Keet pocket module scaffolding systems have been part of the state of the art for years and are used as scaffolding or as industrial scaffolding. Due to the advantageous properties of the key pocket module framework system is a very economical modular scaffold system, which also also meets the highest safety requirements and also new application areas, such as truss structures allows.
  • a generic Keiltaschenmodulgerüstsystem example from EP 0622504 B1 and is particularly characterized in that are formed on the vertical uprights at the skeleton node key pockets, in which engage the connection elements of the horizontal bar via correspondingly formed wedges and so give a positive and resilient connection.
  • a truss modular scaffold system emerges, which is based on the wedge bag module scaffolding system and whose special feature is that the wedges are held in the wedge pockets by additional securing means.
  • recesses are provided in the wedges and wedge pockets through which the securing means in the form of bolts, pins, cotter pins or screws are passed and the wedges are secured in the key pockets against unintentional withdrawal.
  • connection element for a Keiltaschenmodulgerüstsystem, wherein the connection elements are designed for receiving in key pockets and the connection element has a wedge with a front wedge surface and a rear wedge surface.
  • the solution is characterized in that the front wedge surface is concave and the rear wedge surface is convex, and thus the wedge surfaces of the wedge contact the corresponding surfaces of the wedge pocket only at points in contact areas.
  • the invention is thus based on the concept of not resting over the entire surface of the wedge flanks on the surface of the corresponding wedge pockets, but limiting the surfaces in contact to point contact areas. As a result, the frictional and wedging effect of the connection between wedge and wedge pocket is increased.
  • the present invention solves the desire to improve the positive and non-positive wedge connection by an additional non-positive component.
  • the invention is advantageously further developed in that the concave front wedge surface of the wedge touch only two contact areas and the convex rear wedge surface of the wedge in only one contact area, the respective corresponding surfaces of the wedge pocket. This results in a three-point support between wedge and wedge pocket, which leads to high forces in the contact areas. This in turn results in a high wedge effect, which increases the security against unintentional release of the connection.
  • a particularly advantageous embodiment of the invention results from the fact that at least one of the contact regions is formed with a surface having increased coefficients of friction.
  • only the contact region of the convex rear wedge surface is formed with increased coefficients of friction.
  • the increased coefficients of friction are advantageously formed in a simple embodiment by a roughened surface, but are alternatively ausgargbar by a toothing of the contact areas.
  • the toothing is particularly advantageous to design the toothing as a saw toothing.
  • This advantageous embodiment is configured in a special way by a preferred embodiment of the wedge with a length of 160 mm and a width of 65 mm.
  • a particular advantage of the solution according to the invention is that an improvement of the wedge connection can be formed by the three-point support.
  • the scaffolding elements are thus higher load capacity even in the unsecured state and a game of wedge and wedge pocket is avoided.
  • Optimizing wedge geometry, material properties, and wedge-pocket material combination meets all key performance characteristics, such as stiffness and load-bearing capabilities in the new wedge-pocket knot, and leads to improvements over prior art solutions.
  • connection element cross section of a connection element
  • Fig. 4 cutout with sawtooth profile
  • FIG. 1 shows a skeleton node 10 of a wedge pocket module framework system in plan view.
  • the stator tube 14 only shown in the approach and unspecified key pockets are arranged, in which the horizontal bar 1 1 are introduced with the wedge 1 and are securely locked due to the optimized geometry.
  • the diagonal struts 13 are laterally connected in plan view on both sides of the horizontal bar 1 1 with the key pockets and stiff the levels of the horizontal bar 1 1 and the stator tube 14.
  • the diagonal bars 12 stiffen the framework system spatially and are connected to the framework node 10 with these via the key pockets.
  • FIG. 2 shows a wedge-shaped connection element as an advantageous embodiment of the invention.
  • the wedge 1 is determined by its wedge flanks substantially in shape.
  • the wedge flanks are provided with wedge surfaces shown in section in the side view, of which the front wedge surface 2 is concave and the rear wedge surface 3 is convex.
  • the concave front wedge surface 2 is deviating from the vertical baseline in a radius of 6,400 mm concave. At the ends of the front wedge surface 2 there are thus two contact areas 9, which are in contact with the corresponding surfaces of the wedge pocket in which the wedge 1 is inserted.
  • the key pockets are flat and straight with the corresponding surfaces, so that a total of only a few, but at least on the concave side two and on the convex side result in a contact point.
  • the other wedge flank is formed by the rear convex wedge surface 3, which is formed with a radius of 3,400 mm and thus slightly more curved than the concave front wedge surface second
  • the contact region 9, the concave front wedge surface 2, is shown greatly enlarged in FIGS. 3 and 4.
  • FIG. 3 shows a section AB through the wedge 1 from FIG. 1, which shows the recess formed through the oblong hole 4.
  • the geometry of the saw teeth 6 is formed by the formation of the tooth tip 7 with a radius of 0, 1 mm and the formation of the tooth base 8 with a radius of 0.4 mm.
  • the wedge-shaped design of the connecting element is particularly advantageously optimized by the choice of material combination in that for the wedge 1 a steel S700MC and for the key pocket a steel S355MC is selected.
  • the wedge 1 has in the embodiment shown by way of example a wedge length at the vertical edge of 160 mm and at the wedge tip a width of 26 mm, and at the wedge base a width of 65 mm.
  • the contact region 9 on the convex wedge surface 3 is slightly off-centered at a height of 79 mm, measured from the wedge base.

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)

Abstract

L'invention concerne un élément de raccordement destiné à un système d'échafaudage modulaire à niches cunéiformes constitué d'un nœud d'échafaudage (10). Sur le montant tubulaire (14) sont agencées des niches cunéiformes seulement en partie représentées et non désignées précisément, dans lesquelles les membrures horizontales (11) sont introduites avec le coin (1) et sont bloquées de manière sécurisée en raison de la géométrie optimisée. Les traverses diagonales (13) sont reliées aux niches cunéiformes latéralement vu d'en haut de part et d'autre des membrures horizontales (11) et étayent les niveaux des membrures horizontales (11) et du montant tubulaire (14). Les membrures diagonales (12) étayent le système d'échafaudage dans l'espace et sont reliées au nœud d'échafaudage (10) par l'intermédiaire des niches cunéiformes.
PCT/EP2012/056149 2011-04-08 2012-04-04 Élément de raccordement destiné à un système d'échafaudage modulaire à niches cunéiformes WO2012136697A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011001908.1 2011-04-08
DE102011001908A DE102011001908A1 (de) 2011-04-08 2011-04-08 Anschlusselement für ein Keiltaschenmodulgerüstsystem

Publications (1)

Publication Number Publication Date
WO2012136697A1 true WO2012136697A1 (fr) 2012-10-11

Family

ID=45976334

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/056149 WO2012136697A1 (fr) 2011-04-08 2012-04-04 Élément de raccordement destiné à un système d'échafaudage modulaire à niches cunéiformes

Country Status (2)

Country Link
DE (1) DE102011001908A1 (fr)
WO (1) WO2012136697A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103089000B (zh) * 2013-02-07 2015-05-20 朱新伟 一种钢管脚手架用斜撑扣件及其滑套

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2553456A1 (fr) * 1983-10-18 1985-04-19 Roux Marcel Dispositif d'assemblage directionnel entre les elements tubulaires horizontaux et verticaux d'un echafaudage
EP0486381A1 (fr) * 1990-11-15 1992-05-20 Mills Ensemble constitué d'un organe de serrage et d'un organe de verrouillage, élément d'échafaudage qui en est équipé et dispositif de solidarisation d'un tel élément à un mât d'un échafaudage.
JPH0882092A (ja) * 1994-09-05 1996-03-26 Masao Suzuki パイプ材の連結装置
EP0622504B1 (fr) 1993-04-29 1997-06-18 Gerald Merkel Noeud et raccord de noeud pour système d'échafaudage
DE19602737A1 (de) * 1996-01-26 1997-07-31 Peri Gmbh Gerüstknoten
JP2002147012A (ja) * 2000-11-17 2002-05-22 Shinwa Kk 足場用手すり枠
WO2002057569A1 (fr) * 2001-01-19 2002-07-25 Günter Rux GmbH Balustrade autobloquante
JP2002317552A (ja) * 2001-04-20 2002-10-31 Yuko Maintenance:Kk 仮設構造物の構築方法とこれに用いる手摺り筋交い
DE202009008127U1 (de) 2009-06-12 2009-08-27 G.M.B. Trade And Service Company Ltd. Fachwerk-Modulgerüstsystem
WO2009123567A2 (fr) * 2008-03-31 2009-10-08 Asia Scaffolding Pte Ltd Griffe de fixation
JP2010101056A (ja) * 2008-10-23 2010-05-06 Krh Kk 仮設足場用連結構造体

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1310596A (fr) * 1961-10-16 1962-11-30 Perfectionnements aux dispositifs d'assemblage pour éléments d'échafaudages métalliques
DE2834009C2 (de) * 1978-08-03 1980-09-25 Rasmussen Gmbh, 6457 Maintal Vorrichtung zum Verbinden der Enden zweier Rohre o.dgl. mit einer schraublosen Bandschelle
DE3545402A1 (de) * 1985-12-19 1987-07-09 Bera Berliner Rahmengeruest Stahlrohrgeruest
DE29715170U1 (de) * 1997-08-23 1997-10-30 Merkel, Gerald, Nassau, Bahamas Vertikaldiagonalenverstrebung für Keiltaschen-Modulgerüste

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2553456A1 (fr) * 1983-10-18 1985-04-19 Roux Marcel Dispositif d'assemblage directionnel entre les elements tubulaires horizontaux et verticaux d'un echafaudage
EP0486381A1 (fr) * 1990-11-15 1992-05-20 Mills Ensemble constitué d'un organe de serrage et d'un organe de verrouillage, élément d'échafaudage qui en est équipé et dispositif de solidarisation d'un tel élément à un mât d'un échafaudage.
EP0622504B1 (fr) 1993-04-29 1997-06-18 Gerald Merkel Noeud et raccord de noeud pour système d'échafaudage
JPH0882092A (ja) * 1994-09-05 1996-03-26 Masao Suzuki パイプ材の連結装置
DE19602737A1 (de) * 1996-01-26 1997-07-31 Peri Gmbh Gerüstknoten
JP2002147012A (ja) * 2000-11-17 2002-05-22 Shinwa Kk 足場用手すり枠
WO2002057569A1 (fr) * 2001-01-19 2002-07-25 Günter Rux GmbH Balustrade autobloquante
JP2002317552A (ja) * 2001-04-20 2002-10-31 Yuko Maintenance:Kk 仮設構造物の構築方法とこれに用いる手摺り筋交い
WO2009123567A2 (fr) * 2008-03-31 2009-10-08 Asia Scaffolding Pte Ltd Griffe de fixation
JP2010101056A (ja) * 2008-10-23 2010-05-06 Krh Kk 仮設足場用連結構造体
DE202009008127U1 (de) 2009-06-12 2009-08-27 G.M.B. Trade And Service Company Ltd. Fachwerk-Modulgerüstsystem

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