EP1832695A2 - Connection d'échafaudage - Google Patents

Connection d'échafaudage Download PDF

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Publication number
EP1832695A2
EP1832695A2 EP20060024880 EP06024880A EP1832695A2 EP 1832695 A2 EP1832695 A2 EP 1832695A2 EP 20060024880 EP20060024880 EP 20060024880 EP 06024880 A EP06024880 A EP 06024880A EP 1832695 A2 EP1832695 A2 EP 1832695A2
Authority
EP
European Patent Office
Prior art keywords
hook bolt
hook
coupling according
claw
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.)
Withdrawn
Application number
EP20060024880
Other languages
German (de)
English (en)
Inventor
Josef Engels
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.)
MJ Geruest GmbH
Original Assignee
MJ Geruest GmbH
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 MJ Geruest GmbH filed Critical MJ Geruest GmbH
Publication of EP1832695A2 publication Critical patent/EP1832695A2/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Withdrawn legal-status Critical Current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
    • 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 scaffold coupling for the construction of working, protective, support structures and the like, for connecting / coupling horizontal, diagonal and similar struts with vertical standpipes, attached to the uprights flanges to which the struts on one side engage with a hook-shaped, positive claw and on the opposite side by a hook bolt, which is rotated by a drive wedge about a pivot point, are braced.
  • the bolt is designed for a further clamping point with a projection and with a clamping surface, wherein the projection in the closed position engages behind the fixed coupling half and with respect to the standing element when driven Wedge forms a further clamping point, and the further rear wedge surface of the bolt between the projection and the front wedge surface of the bolt is arranged, so that the bolt in closed position with driven wedge on two bracing points, namely at the clamping surface and the projection, and the rear Wedge surface is braced against the standing element.
  • a scaffolding coupling made and used in accordance with this prior art requires a precisely metered impact of the wedge in order to simultaneously engage the three said clamping points. But this is difficult or impossible to achieve.
  • the above-mentioned scaffolding is mainly built up under time pressure, the driving wedges are sometimes driven with a fist, sometimes with a carpenter hammer or the like. It follows that the driving forces are very different. Metering the driving force in such a way that all three clamping points are acted upon is impossible for the operators. In addition, the drive wedges, bars, etc. are exposed to constant wear. This results from the fact that such scaffolding is often built up and dismantled. Already during production, the interaction of all three clamping points can change. For example, the layer thickness of zinc at the individual components is different, since they are manufactured separately.
  • the invention is therefore an object of the invention to provide a generic scaffold coupling, which avoids the disadvantages mentioned above, simplifies handling and improves the application of force.
  • the clamping surface of the hook bolt on the standpipe is to be selected in size so that the surface pressure is as low as possible in order to avoid a pressing / impressing the clamping surface in the surface of the standpipe. Therefore, the material properties of the standpipe should also be taken into account.
  • a further embodiment provides that the hook bolt is riveted to the claw.
  • a screw with preferably a self-locking nut can be used instead of a rivet.
  • Such a configuration can be carried out with few tools during the construction of a scaffold on site.
  • the replacement of the hook bolt is always to be made if it has deformations or flattening on the contact surfaces. The replacement can be performed regularly depending on the number of clamping operations.
  • FIG. 1 shows a scaffolding coupling 1.
  • a flange 3 is fixed, in which a claw 4 engages.
  • the claw 4 is fixed, for example, by welding to a tubular strut 5, which is arranged horizontally here.
  • the claw 4 has on its underside 6 a V-shaped recess 7, which corresponds to an upper contour 8 of the flange 3.
  • the V-shaped recess 7 is designed so that the two side edges 9, 10 abut the side edges 11, 12 of the flange 3.
  • the upper surface 13 of the upper contour 8 and the surface 14 of the V-shaped recess 7 are formed at a distance and thus form a gap 15th
  • a drive wedge 16 is guided in a gap.
  • the way of the leadership and the function is eg from the DE 42 42 031 B4 known and familiar to the expert.
  • the drive wedge 16 may, for example, have lateral thickenings at the lower tip 17, which will completely slip out of the gap and thus prevent separation from the claw 4.
  • the drive wedge 16 slides when driving into the gap with its left flank 18 along a right flank 19 of a hook bolt 20.
  • the pivotable about a pivot point 21 arranged hook latch 20 is balanced so that it is not applied to the driving wedge 16, the bottom 6 of the claw 4 covers.
  • the tubular strut 5 with the claw 4 attached thereto can be plugged / hooked by an operator without affecting the upper contour 8 of the flange 3.
  • the left flank 18 of the drive wedge 16 and the right flank 19 of the hook bolt 20 touch each other over the entire surface.
  • the hook bolt 20 is pivoted about the pivot point 21.
  • the hook bolt 20 has on its left side on a clamping surface 22 which rests against the surface of the standpipe 2 and braces the entire framework.
  • the top 23 of the hook bolt 20 is linear in a first embodiment. In a further embodiment, the top 23 but also have a v-shaped recess 24. Important in all versions is that between the top 23 of the hook bolt 20 and the lower contour 25 of the flange 3 no frictional connection is formed. This would prevent proper influence of the clamping surface 22 on the surface of the standpipe 2 / influence. Between the top 23 of the hook bolt 20 and the lower contour 25 of the flange 3, therefore, a gap 26 should be present. The gap 26 should be at least 1 mm wide to avoid contact. By such a design will avoid that the clamping force is influenced on the hook bolt 20 on the standpipe 2.
  • FIG. 2 viewed from below (section A - A), a cut, tubular standpipe 2 can be seen.
  • known flange 3 is fixed to the standpipe 2 a.
  • This can have 4 individual openings for receiving the claw, which predetermine the direction of the tubular strut 5.
  • the clamping surface 22 of the hook bolt 20 bears against the surface of the standpipe 2.
  • the clamping surface 22 of the surface contour of the standpipe 2 is adjusted. This means that the clamping surface 22 can be influenced by the height of the left side 27 of the hook bolt 20 and the width 28 of the hook bolt 20. Due to the different coefficients of friction of the surfaces and the materials used, a tension can thus be achieved which effectively prevents loosening.
  • the determination of the friction surface for example, as in the storage of a pin, the projection surface can be considered.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
EP20060024880 2006-03-09 2006-12-01 Connection d'échafaudage Withdrawn EP1832695A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200620003891 DE202006003891U1 (de) 2006-03-09 2006-03-09 Gerüstkupplung

Publications (1)

Publication Number Publication Date
EP1832695A2 true EP1832695A2 (fr) 2007-09-12

Family

ID=36599930

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060024880 Withdrawn EP1832695A2 (fr) 2006-03-09 2006-12-01 Connection d'échafaudage

Country Status (2)

Country Link
EP (1) EP1832695A2 (fr)
DE (1) DE202006003891U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2500025A (en) * 2012-03-07 2013-09-11 Turner Access Ltd A hand tool for positioning a scaffolding guard frame
GB2501227A (en) * 2012-02-01 2013-10-23 Turner Access Ltd A coupler for connecting a scaffolding element to a vertical scaffold member

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019116119A1 (de) * 2019-06-13 2020-12-17 Peri Gmbh Gerüstknoten, gerüstrosette, gerüststiel und gerüstriegel sowie herstellverfahren für eine gerüstrosette

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2501227A (en) * 2012-02-01 2013-10-23 Turner Access Ltd A coupler for connecting a scaffolding element to a vertical scaffold member
GB2501227B (en) * 2012-02-01 2018-02-14 Turner Access Ltd Scaffolding couplers
GB2500025A (en) * 2012-03-07 2013-09-11 Turner Access Ltd A hand tool for positioning a scaffolding guard frame
GB2500025B (en) * 2012-03-07 2019-02-13 Turner Access Ltd Scaffolding

Also Published As

Publication number Publication date
DE202006003891U1 (de) 2006-06-08

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