EP0317695B1 - Metallstandgerüst für Bauwerke - Google Patents

Metallstandgerüst für Bauwerke Download PDF

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Publication number
EP0317695B1
EP0317695B1 EP88101742A EP88101742A EP0317695B1 EP 0317695 B1 EP0317695 B1 EP 0317695B1 EP 88101742 A EP88101742 A EP 88101742A EP 88101742 A EP88101742 A EP 88101742A EP 0317695 B1 EP0317695 B1 EP 0317695B1
Authority
EP
European Patent Office
Prior art keywords
wedge
key
metal
coupling half
driving
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
EP88101742A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0317695A1 (de
Inventor
Dieter Müller
Manfred Hiby
Günter Gottschalk
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.)
Guenter Rux GmbH
Original Assignee
Guenter Rux 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27196840&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0317695(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE19883800169 external-priority patent/DE3800169A1/de
Priority claimed from DE19883802172 external-priority patent/DE3802172A1/de
Application filed by Guenter Rux GmbH filed Critical Guenter Rux GmbH
Priority to AT88101742T priority Critical patent/ATE65282T1/de
Publication of EP0317695A1 publication Critical patent/EP0317695A1/de
Application granted granted Critical
Publication of EP0317695B1 publication Critical patent/EP0317695B1/de
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
    • E04G7/302—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 metal stand scaffold for buildings, in particular a tubular scaffold according to the preamble of claim 1.
  • Stand scaffolding of this type can be designed as a so-called bar structure.
  • the invention relates to tubular rod structures, the elements of which predominantly consist of steel tubes. With these scaffolds, the standpipes are connected to the various bars, which also consist of pipe sections, via the coupling.
  • the invention relates to modular stand scaffolding, which allow the scaffolding to be largely adapted to the respective building.
  • the couplings are screwless. This makes assembly and disassembly of the scaffolding easier and faster. Nevertheless, the stand scaffold according to the invention is safe from accidents because its couplings can be assembled without error and only with the prescribed elements, but on the other hand can not be unexpectedly released under any circumstances.
  • the invention is based on a known stand structure (EP-B-0 116 679), the couplings of which implement a wedge gear.
  • One coupling half attached to a standing element is designed as a flange ring and forms the slide of the wedge gear, while the other coupling half is provided with a hook to be hung on the flange ring, which ensures the positive locking.
  • the gap for the driving wedge lies behind the hook, so that this coupling half forms the frame of the wedge gear.
  • the driving in of the driving wedge leads to the interlocking parts being braced, the coupling half forming the frame in particular being elastically deformed.
  • Such couplings are functional in stand scaffolding.
  • the driving wedges can be easily driven and unscrewed from unsafe positions when assembling the scaffolding. They can be accommodated captively in the gap, which inevitably guarantees the functional condition of the couplings. They can also be carried out in a space-saving manner, so that the coupling halves can be made small and, among other things, assume a crucial weight for the usability of the standing scaffolding.
  • the invention therefore relates to this fundamental Embodiment.
  • the invention has for its object to provide a functional solution to the problem that has arisen due to the loosening driving wedges for the safety of metal stands of the type described.
  • the driving wedge of each clutch is no longer directly applied with its wedge flank of the other coupling half. Rather, this happens with the interposition of the metal plate, which is braced with the wedge flank and with the inclined surface of the coupling half. Since the plate is attached to a coupling half, it cannot be dragged along by the driving wedge and can detach itself.
  • the driving wedge tensions only with the gap and the lamella, so that the surfaces of the lamella described form additional friction surfaces which, with the wedge flanks, have the disadvantageous effects of Counteract movements of the coupling halves in the wake of vibrations.
  • the driving wedge is therefore largely insensitive to vibrations, such as those that can occur, in particular, when the loads on bridges are shaken by heavy loads. Because of this, he can no longer suddenly lose his self-locking.
  • This solution of the invention has the advantage that it frees the practical quick couplings, in particular of pipe stand scaffolds, of their previous uncertainties, without these couplings having to be changed in such a way that they can no longer be used.
  • even existing couplings of various designs can be renovated by installing the lamella.
  • new clutches are equipped with the invention from the outset.
  • the lamella also serves to implement a wedge gear that works with several wedge flanks.
  • This has the advantage that the tensioning of the coupling halves increases more strongly on the last section of the drive path, which prevents premature exhaustion of the wedge suit and increases or increases the friction. Wedge tightening forces are reduced.
  • the lamella can also serve to hold the loosened driving wedge in the gap, for example to fix it in a form-fitting manner. This is ensured by the features of claim 3.
  • the lamella clamps the loosened wedge onto its support and is tensioned even when the wedge is tightened.
  • the coupling half (9) consists of a molded part, for example, which has a hollow cylindrical section (10) with which the bolt (2) consisting of a tube is welded is.
  • a driving wedge (12) In the front part of section (10) there is a gap (11) for a driving wedge (12).
  • the driving wedge is shown in Fig. 1 in its rest position. He takes this when the driving wedge is in its upper end position. Then the wedge surface (13) of the driving wedge (12) is supported on the lower end of the bottom (14) of the gap (11) with a recess (15) on a shoulder (16) of the bottom.
  • a semicircular thickening (17) which attaches to the driving wedge tip, prevents the driving wedge from being released from the guide slot (11) when the parts assume their position shown in FIG. 2.
  • the gap has an upper inlet opening (18) and a lower outlet opening (19).
  • the roof surface (20) of the gap opposite the floor (14) is formed in a shaft of a hook (21), the hook mouth of which opens downwards.
  • the back of the hook sits between two elevations (22), which ensure a recessed arrangement and keep mechanical stresses away from the hook.
  • a recess (23) is formed in the hook shaft as a seat via a lamella (24), or the like with its upper angled end (25) in the bottom of the recess (23) with a screw (26). is attached.
  • the lamella is a thin section of spring steel the width of the back of the wedge (27) on which it slides when the wedge is driven. It protrudes downwards and outwards through the inlet opening (18) of the gap (11) and through its outlet opening (19). As shown at (28), its end is thickened to form a wedge surface (29).
  • the hook (21) is hung from above onto the ring flange (6).
  • the wedge (12) is pivoted from its rest position shown in FIG. 1 into the starting position for bracing the coupling halves and driven from top to bottom with hammer blows (FIG. 2).
  • the flank (27) of the driving wedge (12) which moves from top to bottom, slides on the fixed metal plate (24).
  • the driving force of the wedge (12) increases, causing the lamella to align with its wedge surface (32) opposite flank (29) of the inclined surface (7).
  • the hammer blows cause the wedge back (27) to be braced with the lamella (24) and the lamella (24) with the bearing surface (7).
  • the wedge mechanism implemented in the device (8) is released by hammer blows on the part (17) of the driving wedge (12). As a result, the back of the wedge (27) is released from the lamella (24) which springs back and finally fixes the driving wedge in its starting position.
  • the use of conical surfaces, as shown in (6 and 7) for the coupling half (4), is not a requirement.
  • the lamella consists of spring steel and therefore returns to its starting position after pulling out the driving wedge (12), the projection (16) again engaging in the recess (15) of the driving wedge (12) according to FIG. This makes it possible to unhook the hook (22) of the coupling half (9) from the flange (5) without restriction.
  • a central section (34) lies between the cranked, upper end (33) of the spring steel plate and the lower thickened plate end (28). This is delimited by the curved surfaces (35, 36) which lie opposite the wedge back (27) or the roof surface (20) of the guide slot (18). The surface (35) engages the driving wedge (12) as described above.
  • the wedge guide on the lower extension (16) of the coupling half (9) is extended by the extension (16) projecting beyond the lower edge (37) of the opening (19).
  • the wedge forces are concentrated on the thickening (28) and thus on the bearing surface (29).
  • the exemplary embodiment according to FIG. 3 differs from the exemplary embodiment according to FIGS. 1 and 2 by a shortened slat length, that is to say restricted to the thickening (28).
  • the lamella (24) has a self-aligning bearing (38) with which it can swing in the guide slot (11) in the plane of the driving wedge (12).
  • the pin (39) of the self-aligning bearing sits in the apex of the triangular plan of the lamella (24).
  • the crown is from the with the bearing surface (7) cooperating wedge surface (29) and the opposite surface (32) of the driving wedge (12).

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Clamps And Clips (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
EP88101742A 1987-11-27 1988-02-06 Metallstandgerüst für Bauwerke Expired - Lifetime EP0317695B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88101742T ATE65282T1 (de) 1987-11-27 1988-02-06 Metallstandgeruest fuer bauwerke.

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE3740231 1987-11-27
DE3740231 1987-11-27
DE3800169 1988-01-07
DE19883800169 DE3800169A1 (de) 1987-11-27 1988-01-07 Metallstandgeruest fuer bauwerke
DE19883802172 DE3802172A1 (de) 1988-01-26 1988-01-26 Metallstandgeruest fuer bauwerke, insbesondere rohrgeruest
DE3802172 1988-01-26

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP90123373.4 Division-Into 1988-02-06

Publications (2)

Publication Number Publication Date
EP0317695A1 EP0317695A1 (de) 1989-05-31
EP0317695B1 true EP0317695B1 (de) 1991-07-17

Family

ID=27196840

Family Applications (2)

Application Number Title Priority Date Filing Date
EP88101742A Expired - Lifetime EP0317695B1 (de) 1987-11-27 1988-02-06 Metallstandgerüst für Bauwerke
EP19900123373 Withdrawn EP0430308A3 (en) 1987-11-27 1988-02-06 Metal scaffolding for buildings

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP19900123373 Withdrawn EP0430308A3 (en) 1987-11-27 1988-02-06 Metal scaffolding for buildings

Country Status (4)

Country Link
EP (2) EP0317695B1 (da)
DE (1) DE3863753D1 (da)
DK (1) DK76888A (da)
NO (1) NO880568L (da)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2680196A1 (fr) * 1991-08-05 1993-02-12 Atem Sa Dispositif d'assemblage et de fixation d'une extremite d'une traverse a un montant et systeme d'echafaudage comprenant des traverses munies a chacune de leurs extremites d'un tel dispositif.
DE4242031B4 (de) * 1992-12-12 2004-09-30 Günter Rux GmbH Metallgerüst
FR2755166B1 (fr) * 1996-10-24 1998-12-31 Adam Denis Dispositif perfectionne de liaison pour structure support maillee telle qu'un echafaudage
CN103032658B (zh) * 2012-12-24 2014-10-29 广东威创视讯科技股份有限公司 一种用于背投屏幕框架的锁定机构

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH384190A (it) * 1963-03-28 1964-11-15 Pedroli Dante Dispositivo per realizzare ponteggi, cravatte porta assi, cavalletti e strutture tubolari in genere
AU518442B2 (en) * 1977-06-06 1981-10-01 Cyclone Scaffolding Pty. Limited Scaffold interconnections
EP0009680B1 (de) * 1978-10-02 1981-10-14 Gerhard Dobersch Stahlrohrgerüst
SE423735B (sv) * 1979-10-19 1982-05-24 Goeteborg Staellningsgruppen Anordning for sammankoppling av sidoriktade stellningselement med standare i en byggnadsstellning eller dylikt
DE3103470C2 (de) * 1981-02-02 1984-01-19 Udo 4836 Herzebrock Rose Stahlrohrgerüst
FR2527711B1 (fr) * 1982-05-28 1986-08-22 Select Etem Sa Noeud d'assemblage pour structures diverses, telles que des echafaudages
US4445307A (en) * 1982-11-08 1984-05-01 Figgie International Inc. Scaffold joint for a scaffold structure

Also Published As

Publication number Publication date
NO880568L (no) 1989-05-29
NO880568D0 (no) 1988-02-09
EP0430308A2 (de) 1991-06-05
DK76888D0 (da) 1988-02-15
DK76888A (da) 1989-05-28
DE3863753D1 (de) 1991-08-22
EP0430308A3 (en) 1991-06-26
EP0317695A1 (de) 1989-05-31

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