EP1301673B1 - Tubular scaffolding system - Google Patents

Tubular scaffolding system Download PDF

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Publication number
EP1301673B1
EP1301673B1 EP01953878A EP01953878A EP1301673B1 EP 1301673 B1 EP1301673 B1 EP 1301673B1 EP 01953878 A EP01953878 A EP 01953878A EP 01953878 A EP01953878 A EP 01953878A EP 1301673 B1 EP1301673 B1 EP 1301673B1
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EP
European Patent Office
Prior art keywords
passage
scaffolding
tubular
tubular scaffolding
scaffolding system
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Expired - Lifetime
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EP01953878A
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German (de)
French (fr)
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EP1301673A1 (en
Inventor
Helmut Kreller
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Wilhelm Layher Verwaltungs GmbH
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Wilhelm Layher Verwaltungs GmbH
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Publication of EP1301673A1 publication Critical patent/EP1301673A1/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00Connections between parts of the scaffold
    • E04G7/30Scaffolding bars or members with non-detachably fixed coupling elements
    • E04G7/32Scaffolding bars or members with non-detachably fixed coupling elements with coupling elements using wedges
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00Connections between parts of the scaffold
    • E04G7/30Scaffolding bars or members with non-detachably fixed coupling elements
    • E04G7/302Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members
    • E04G7/306Scaffolding 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
    • E04G7/307Scaffolding 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 scaffolding system, in particular for scaffolding, with vertical tubular scaffolding stems, which are arranged at regular intervals with them concentrically arranged and fixedly connected to them disc-shaped metal rosettes, which surround the tubular scaffolding pedestals and provided with apertures, four of provided in the flange rosette first openings have a longitudinally oval shape and are arranged so that their longitudinal planes intersect in the longitudinal center axis of the scaffold at a right angle, each between two of the longitudinal oval first openings a second opening is arranged, extending horizontally or diagonally Scaffolding elements in their front end region each have a wedge head element which has a slot which opens outwards at least corresponding to the thickness of the flange-like rosettes of the vertical framework pedestals and is provided with a respective extending perpendicular to the median plane of the slot through opening.
  • the present invention is based on the object or the technical problem of providing an improved pipe scaffold system, which ensures the previous advantages of easy assembly or disassembly of an economical production and a high load, specify whose economic use is increased and in which the handling further during assembly is improved.
  • the pipe frame system according to the invention is accordingly characterized in that at each of the substantially radially extending side edges of the first opening an expanding recess is present, whereby the web width between recess and second aperture is reduced, such that the original minimum web width between the first Breakthrough and the second breakthrough is not undershot.
  • a particularly advantageous embodiment is characterized in that the wedge as a captive in its guided through the opening end region transverse to the longitudinal planes arranged projection units and the recesses are arranged in a plan view at the height of these projection units.
  • a particularly preferred embodiment is characterized in that the recess has a part-circular contour.
  • the rosette is preferably made of a steel, for example S 235 or S 355, with a defined increased yield strength.
  • a flange-type escutcheon 14 is shown in a plan view with connection of a horizontal structural element 22 with wedge head 30.
  • the inner diameter of the rosette 14 is chosen so that it can be easily connected to the tubular vertical stand 12, for example by welding.
  • longitudinal oval first openings 18 are provided in the flange attached to the tubular frame member 12 . These are arranged so that their longitudinal planes, whose sections are shown with the plane of the drawing by the dotted lines x and y, intersect in the longitudinal central axis A of the vertical scaffold post 12.
  • the longitudinal oval first openings 18 are each truncated at their pointing away from the central axis A and pointing to the central axis A ends and limited by flat surfaces, the ovalization increases towards the central axis A.
  • Other cylinder-jacket-like curved surfaces may also be provided whose cylinder axis coincides with the longitudinal axis 16 of the framework element 12.
  • first openings 18 second openings 20 are arranged. These are limited in each case in the direction against the longitudinal oval first openings 18 by flat surfaces, while their parallel to the edge of the flange rosette 14 extending boundary surfaces are formed by cylinder jacket cutouts whose cylinder axis is also identical to the longitudinal axis 16 of the scaffold element 12.
  • the dimensions u of the first openings 18 of the second openings 20 in the radial Direction are the same. In the circumferential direction of the rosette 14, the dimensions V of the second openings 20 are kept significantly larger than that of the first openings.
  • a wedge 34 is provided in a vertically disposed to the slot 24 through opening 32, which is thereby arranged captive on the wedge head element 30 in which it has in its lower end portion in the embodiment designed as a blind rivet projection elements 26 which are perpendicular to the planes x, y extend.
  • the captive safety is ensured by the fact that the through opening 32 in the upper region has an inwardly projecting stop on both sides 36, so that the opening 32 narrows to a dimension which is smaller than the outer dimension of the wedge 34 with projection elements 26th
  • the wedge head element 30 is pushed onto the rosette 14, such that the through-opening 32 of the wedge head unit 30 coincides with the first opening 18 of the rosette 14. In this state, the wedge 34 is pulled upwards, limited by the stopper 36. Once the wedge head unit is pushed onto the rosette 14, the wedge 34 is beaten down in a simple manner by means of a hammer blow, whereby the wedge head element 30 and thus also the framework element 22 are clamped on the rosette 14 or the framework element 22 - over the end faces of the wedge head 30 - supported.
  • the first openings 18 now have a special feature according to the invention in that they have additionally widening recesses 38 with a part-circular outer contour in the substantially radially extending longitudinal oval side edge region of the first openings 18.
  • the recesses 38 are so formed in the first openings 18, that the distance A to the respective second opening 20 is held so that it does not fall below the previous smallest distance A1 between the first opening 18 and second opening 20.
  • the geometry of the first opening 18 in conjunction with the recesses 38 is shown in more detail in FIG.
  • FIG. 3 likewise shows a projection unit 26 in the form of a blind rivet, wherein the blind rivet formation on the opposite side of the blind rivet 26 has not yet been completed.
  • the wedge 34 is already inserted into the through hole 32 of the wedge head element 30.
  • the blind rivet is struck and whereby the wedge 34 captive on the wedge head element 30 is present.
  • the geometric changes made by the bilateral recesses 38 on the first opening 18 can be represented as follows.
  • the maximum width B of the first aperture 18 in conjunction with the additional recesses 38 is in the present Embodiment increased to about 18 mm (millimeters).
  • the point of the maximum width B of the inner edge contour 40 of the first opening 18 is offset by the dimension C to the outside, wherein in the concrete embodiment, the dimension C assumes the value of about 8 mm (millimeters).
  • the rosette 14 is utilized more evenly due to the loads occurring and at the same time counteracts a hooking same when knocking out the wedge 34 during disassembly.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Description

TECHNISCHES GEBIETTECHNICAL AREA

Die vorliegende Erfindung betrifft ein Rohrgerüstsystem, insbesondere für Baugerüste, mit vertikalen rohrförmigen Gerüststielen, die in regelmäßigen Abständen mit konzentrisch zu ihnen angeordneten und fest mit ihnen verbundenen scheibenförmigen metallenen Rosetten versehen sind, die die rohrförmigen Gerüststiele flanschartig umgeben und mit Durchbrüchen versehen sind, wobei vier von in der flanschartigen Rosette vorgesehenen ersten Durchbrüchen eine längsovale Form aufweisen und so angeordnet sind, dass ihre Längsebenen sich in der Längsmittelachse des Gerüststiels unter einem rechten Winkel schneiden, jeweils zwischen zwei der längsovalen ersten Durchbrüche ein zweiter Durchbruch angeordnet ist, die horizontal oder diagonal verlaufenden Gerüstelemente in ihrem Stirnendbereich jeweils ein Keilkopfelement aufweisen, der mit einem sich nach außen öffnenden mindestens der Dicke der flanschartigen Rosetten der vertikalen Gerüststiele entsprechenden Schlitz aufweist und jeweils mit einer senkrecht zu der Mittelebene des Schlitzes verlaufenden durchgehenden Öffnung versehen ist.The present invention relates to a scaffolding system, in particular for scaffolding, with vertical tubular scaffolding stems, which are arranged at regular intervals with them concentrically arranged and fixedly connected to them disc-shaped metal rosettes, which surround the tubular scaffolding pedestals and provided with apertures, four of provided in the flange rosette first openings have a longitudinally oval shape and are arranged so that their longitudinal planes intersect in the longitudinal center axis of the scaffold at a right angle, each between two of the longitudinal oval first openings a second opening is arranged, extending horizontally or diagonally Scaffolding elements in their front end region each have a wedge head element which has a slot which opens outwards at least corresponding to the thickness of the flange-like rosettes of the vertical framework pedestals and is provided with a respective extending perpendicular to the median plane of the slot through opening.

STAND DER TECHNIKSTATE OF THE ART

Ein gattungsgemäßes Rohrsystem der eingangs genannten Art ist in der deutschen Offenlegungsschrift 24 49 124 beschrieben. Ein derartiges Rohrgerüstsystem ist unter dem Namen Layher-Allround-Gerüstsystem seit Jahren auf dem Markt eingeführt und hat sich bestens bewährt.A generic pipe system of the type mentioned is described in German Offenlegungsschrift 24 49 124. Such a pipe scaffold system has been on the market for years under the name Layher Allround scaffold system and has proven itself very well.

DARSTELLUNG DER ERFINDUNGPRESENTATION OF THE INVENTION

Der vorliegenden Erfindung liegt die Aufgabe beziehungsweise das technische Problem zugrunde, ein verbessertes Rohrgerüstsystem, das die bisherigen Vorteile einer leichten Montage beziehungsweise Demontage einer wirtschaftlichen Herstellung und einer hohen Traglast gewährleistet, anzugeben, dessen wirtschaftlicher Einsatz erhöht ist und bei dem die Handhabbarkeit bei der Montage weiter verbessert ist.The present invention is based on the object or the technical problem of providing an improved pipe scaffold system, which ensures the previous advantages of easy assembly or disassembly of an economical production and a high load, specify whose economic use is increased and in which the handling further during assembly is improved.

Das erfindungsgemäße Rohrgerüstsystem ist durch die Merkmale des abhängigen Anspruchs 1 gegeben. Vorteilhafte Ausgestaltungen und Weiterbildungen sind Gegenstand der abhängigen Ansprüche.The pipe skeleton system according to the invention is given by the features of the dependent claim 1. Advantageous embodiments and further developments are the subject of the dependent claims.

Das erfindungsgemäße Rohrgerüstsystem zeichnet sich demgemäß dadurch aus, dass an jeder der im Wesentlichen in radialer Richtung verlaufenden Seitenkanten des ersten Durchbruchs eine erweiternde Ausnehmung vorhanden ist, wodurch die Stegbreite zwischen Ausnehmung und zweitem Durchbruch vermindert wird, derart, dass die ursprünglich minimale Stegbreite zwischen dem ersten Durchbruch und dem zweiten Durchbruch nicht unterschritten wird.The pipe frame system according to the invention is accordingly characterized in that at each of the substantially radially extending side edges of the first opening an expanding recess is present, whereby the web width between recess and second aperture is reduced, such that the original minimum web width between the first Breakthrough and the second breakthrough is not undershot.

Durch das Vorsehen von zusätzlichen Ausnehmungen wird Material eingespart, was infolge der Gewichtsreduzierung zu einer leichteren Handhabbarkeit bei der Montage führt. Gleichzeitig wird durch die spezielle Anordnung der Ausnehmung die Traglast im Anschlussbereich nicht vermindert, da der kleinste Querschnitt zur Abtragung der Lasten zwischen den Durchbrüchen durch die Ausnehmungen nicht vermindert wird.By the provision of additional recesses material is saved, resulting in a lighter handling due to the weight reduction during assembly. At the same time the load in the connection area is not reduced by the special arrangement of the recess, since the smallest cross section for removing the loads between the openings is not reduced by the recesses.

Eine besonders vorteilhafte Ausgestaltung zeichnet sich dadurch aus, dass der Keil als Verliersicherung in seinem durch die Öffnung geführten Endbereich quer zu den Längsebenen angeordnete Vorsprungeinheiten aufweist und die Ausnehmungen in einer Draufsicht gesehen auf Höhe dieser Vorsprungeinheiten angeordnet sind.A particularly advantageous embodiment is characterized in that the wedge as a captive in its guided through the opening end region transverse to the longitudinal planes arranged projection units and the recesses are arranged in a plan view at the height of these projection units.

Durch diese spezielle Ausnehmung wird die Demontagefreundlichkeit deutlich erhöht. Aufgrund der relativ großen Fertigungstoleranzen beim Herstellen der Vorsprungeinheiten beziehungsweise des Blindniets als Verliersicherung vor dem Keil kam es bei den bekannten Rosetten in manchen Fällen zu einem Verhaken des Keiles beim Herausschlagen desselben, da die Querschnittsabmessungen des ersten Durchbruchs relativ knapp hinsichtlich des durchzuführenden Blindniets des Keiles gehalten war.Through this special recess, the disassembly friendliness is significantly increased. Due to the relatively large manufacturing tolerances in the manufacture of the projection units or the blind rivet as captive before the wedge it came in the known rosettes in some cases, the wedge when hitting the same, since the cross-sectional dimensions of the first breakthrough held relatively close to the blind rivet to be performed by the wedge was.

Insgesamt wird durch die erfindungsgemäße Ausführungsform eine gleichmäßigere Ausnützung der Rosette hinsichtlich der abzutragenden Lasten gewährleistet.Overall, a more even utilization of the rosette with respect to the loads to be removed is ensured by the embodiment of the invention.

Eine besonders bevorzugte Ausgestaltung zeichnet sich dadurch aus, dass die Ausnehmung eine teilkreisförmige Kontur aufweist.A particularly preferred embodiment is characterized in that the recess has a part-circular contour.

Um die Traglasten weiter zu erhöhen, ist die Rosette vorzugsweise aus einem Stahl, beispielsweise S 235 oder S 355, mit definierter erhöhter Streckgrenze ausgebildet.In order to further increase the payloads, the rosette is preferably made of a steel, for example S 235 or S 355, with a defined increased yield strength.

Versuche und Berechnungen haben ergeben, dass es hinsichtlich einer effektiven statischen Auslastung besonders vorteilhaft ist, die Rosette dahingehend auszubilden, dass das maximale Aufweitungsmaß, das die Ausnehmungen bei dem ersten Durchbruch bewirken, etwa in einem Abstand von 8 mm (Millimeter) von dem Innenrand des ersten Durchbruchs vorhanden ist, wobei sich in Verbindung mit dieser Maßnahme alternativ eine bevorzugte Ausführungsvariante auszeichnet, dass die maximale in Umfangsrichtung der Rosette gemessene, durch die beiden Ausnehmungen vergrößerte Breite des ersten Durchbruchs etwa 18 mm (Millimeter) beträgt.Experiments and calculations have shown that it is particularly advantageous in terms of an effective static load to form the rosette such that the maximum extent of expansion, which cause the recesses in the first breakthrough, approximately in a distance of 8 mm (millimeters) from the inner edge of the first opening is present, which in connection with this measure alternatively a preferred embodiment is characterized in that the maximum measured in the circumferential direction of the rosette, enlarged by the two recesses width of the first opening about 18 mm (millimeters).

Weitere Ausführungsformen und Vorteile der Erfindung ergeben sich durch die in den Ansprüchen ferner aufgeführten Merkmale sowie durch das nachstehend angegebene Ausführungsbeispiel.Further embodiments and advantages of the invention will become apparent from the features further listed in the claims and by the embodiment given below.

KURZE BESCHREIBUNG DER ZEICHNUNGBRIEF DESCRIPTION OF THE DRAWING

Die Erfindung sowie vorteilhafte Ausführungsformen und Weiterbildungen derselben werden im folgenden anhand des in der Zeichnung dargestellten Beispiels näher beschrieben und erläutert. Die der Beschreibung und der Zeichnung zu entnehmenden Merkmale können einzeln für sich oder zu mehreren in beliebiger Kombination erfindungsgemäß angewandt werden. Es zeigen:

Fig. 1
schematische Seitenansicht eines Rohrgerüstsystems im Anschlussbereich einer Rosette mit horizontalem Gerüstelement mit Keilschlossanbindung,
Fig. 2
schematischer Schnitt durch die Anordnung gemäß Fig. 1 entlang Schnittführung A - A und
Fig. 3
schematische Darstellung des Details I gemäß Fig. 2.
The invention and advantageous embodiments and developments thereof are described in more detail below with reference to the example shown in the drawing and explained. The features to be taken from the description and the drawing can be applied individually according to the invention or to a plurality of them in any desired combination. Show it:
Fig. 1
schematic side view of a pipe scaffold system in the connection area of a rosette with horizontal scaffold element with wedges connection,
Fig. 2
schematic section through the arrangement of FIG. 1 along section A - A and
Fig. 3
schematic representation of the detail I of FIG. 2.

WEGE ZUM AUSFÜHREN DER ERFINDUNGWAYS FOR CARRYING OUT THE INVENTION

Bei dem in den Figuren ausschnittsweise dargestellten Rohrgerüstsystem 10 ist gemäß Figur 2 eine flanschartige Rosette 14 in einer Draufsicht mit Anschluss eines horizontalen Gerüstelements 22 mit Keilkopf 30 dargestellt. Der innere Durchmesser der Rosette 14 ist so gewählt, dass er ohne Schwierigkeiten mit dem rohrförmigen vertikalen Gerüststiel 12 beispielsweise durch Schweißen verbunden werden kann. In der flanschartig an dem rohrförmigen Gerüstelement 12 angebrachten Rosette 14 sind längsovale erste Durchbrüche 18 vorgesehen. Diese sind so angeordnet, dass ihre Längsebenen, deren Schnitte mit der Zeichenebene durch die strichpunktierten Linien x und y dargestellt werden, sich in der Längsmittelachse A des vertikalen Gerüststiels 12 schneiden. Die längsovalen ersten Durchbrüche 18 sind jeweils an ihren von der Mittelachse A wegweisenden und zur Mittelachse A hinweisenden Enden abgestumpft und durch ebene Flächen begrenzt, wobei die Ovalisierung zur Mittelachse A hin zunimmt. Es können auch andere zylindermantelartig gekrümmte Flächen vorgesehen sein, deren Zylinderachse mit der Längsachse 16 des Gerüstelements 12 zusammenfällt.2, a flange-type escutcheon 14 is shown in a plan view with connection of a horizontal structural element 22 with wedge head 30. The inner diameter of the rosette 14 is chosen so that it can be easily connected to the tubular vertical stand 12, for example by welding. In the flange attached to the tubular frame member 12 rosette 14 longitudinal oval first openings 18 are provided. These are arranged so that their longitudinal planes, whose sections are shown with the plane of the drawing by the dotted lines x and y, intersect in the longitudinal central axis A of the vertical scaffold post 12. The longitudinal oval first openings 18 are each truncated at their pointing away from the central axis A and pointing to the central axis A ends and limited by flat surfaces, the ovalization increases towards the central axis A. Other cylinder-jacket-like curved surfaces may also be provided whose cylinder axis coincides with the longitudinal axis 16 of the framework element 12.

Zwischen je zwei ersten Durchbrüchen 18 sind zweite Durchbrüche 20 angeordnet. Diese sind jeweils in Richtung gegen die längsovalen ersten Durchbrüche 18 durch ebene Flächen begrenzt, während ihre parallel zum Rand der flanschartigen Rosette 14 verlaufenden Begrenzungsflächen von Zylindermantelausschnitten gebildet sind, deren Zylinderachse gleichfalls mit der Längsachse 16 des Gerüstelements 12 identisch ist. Die Abmessungen u der ersten Durchbrüche 18 der zweiten Durchbrüche 20 in radialer Richtung sind gleich. In Umfangsrichtung der Rosette 14 sind die Abmessungen V der zweiten Durchbrüche 20 deutlich größer gehalten als die der ersten Durchbrüche.Between each two first openings 18 second openings 20 are arranged. These are limited in each case in the direction against the longitudinal oval first openings 18 by flat surfaces, while their parallel to the edge of the flange rosette 14 extending boundary surfaces are formed by cylinder jacket cutouts whose cylinder axis is also identical to the longitudinal axis 16 of the scaffold element 12. The dimensions u of the first openings 18 of the second openings 20 in the radial Direction are the same. In the circumferential direction of the rosette 14, the dimensions V of the second openings 20 are kept significantly larger than that of the first openings.

Der Anschluss von horizontalen Gerüstelementen 22 beziehungsweise nicht näher dargestellten diagonalen Gerüstelementen erfolgt über eine im jeweiligen Stirnendbereich der Elemente 22 angeschlossene Keilkopfelement 30, die einen zur Rosette 14 hin offenen Schlitz 24 aufweist, dessen Dicke geringfügig größer ist als die Dicke der Rosette 14, sodass das Keilkopfelement 30 problemlos auf die Rosette 14 aufgeschoben werden kann. Gleichzeitig ist in einer vertikal zu dem Schlitz 24 angeordneten durchgehenden Öffnung 32 ein Keil 34 vorhanden, der dadurch unverlierbar an dem Keilkopfelement 30 angeordnet ist, in dem er in seinem unteren Endbereich im Ausführungsbeispiel als Blindniet ausgebildete Vorsprungelemente 26 aufweist, die sich senkrecht zu den Ebenen x, y erstrecken. Die Verliersicherheit wird dadurch gewährleistet, dass die durchgehende Öffnung 32 im oberen Bereich einen nach innen ragenden beidseitigen Anschlag 36 aufweist, sodass sich die Öffnung 32 auf ein Maß verengt, das kleiner ist als das Außenmaß des Keiles 34 mit Vorsprungelementen 26.The connection of horizontal scaffolding elements 22 and diagonal scaffolding elements, not shown, via a connected in the respective end region of the elements 22 wedge head element 30 which has a rosette 14 toward open slot 24, whose thickness is slightly greater than the thickness of the rosette 14, so that the Wedge head element 30 can be easily pushed onto the rosette 14. At the same time a wedge 34 is provided in a vertically disposed to the slot 24 through opening 32, which is thereby arranged captive on the wedge head element 30 in which it has in its lower end portion in the embodiment designed as a blind rivet projection elements 26 which are perpendicular to the planes x, y extend. The captive safety is ensured by the fact that the through opening 32 in the upper region has an inwardly projecting stop on both sides 36, so that the opening 32 narrows to a dimension which is smaller than the outer dimension of the wedge 34 with projection elements 26th

Zum sicheren Anschluss des Elements 22 an die Rosette 14 wird, wie bereits erwähnt, das Keilkopfelement 30 auf die Rosette 14 aufgeschoben, derart, dass die durchgehende Öffnung 32 der Keilkopfeinheit 30 mit dem ersten Durchbruch 18 der Rosette 14 zur Deckung kommt. In diesem Zustand ist der Keil 34 nach oben, begrenzt durch den Anschlag 36 herausgezogen. Sobald die Keilkopfeinheit auf die Rosette 14 aufgeschoben ist, wird in einfacher Art und Weise mittels eines Hammerschlages der Keil 34 nach unten geschlagen, wodurch sich das Keilkopfelement 30 und damit auch das Gerüstelement 22 klemmend an der Rosette 14 beziehungsweise dem Gerüstelement 22 - über die Stirnseiten des Keilkopfes 30 - abstützt.For secure connection of the element 22 to the rosette 14, as already mentioned, the wedge head element 30 is pushed onto the rosette 14, such that the through-opening 32 of the wedge head unit 30 coincides with the first opening 18 of the rosette 14. In this state, the wedge 34 is pulled upwards, limited by the stopper 36. Once the wedge head unit is pushed onto the rosette 14, the wedge 34 is beaten down in a simple manner by means of a hammer blow, whereby the wedge head element 30 and thus also the framework element 22 are clamped on the rosette 14 or the framework element 22 - over the end faces of the wedge head 30 - supported.

Die ersten Durchbrüche 18 weisen nunmehr eine erfindungsgemäße Besonderheit auf, indem sie nämlich im im Wesentlichen radial verlaufenden längsovalen Seitenrandbereich der ersten Durchbrüche 18 zusätzlich erweiternde Ausnehmungen 38 mit einer teilkreisförmigen Außenkontur aufweisen.The first openings 18 now have a special feature according to the invention in that they have additionally widening recesses 38 with a part-circular outer contour in the substantially radially extending longitudinal oval side edge region of the first openings 18.

Die Ausnehmungen 38 sind dabei so in die ersten Durchbrüche 18 eingeformt, dass der Abstand A zum jeweiligen zweiten Durchbruch 20 so gehalten ist, dass er den bisherigen kleinsten Abstand A1 zwischen erstem Durchbruch 18 und zweitem Durchbruch 20 nicht unterschreitet. Die Geometrie des ersten Durchbruchs 18 in Verbindung mit den Ausnehmungen 38 ist in Figur 3 näher dargestellt.The recesses 38 are so formed in the first openings 18, that the distance A to the respective second opening 20 is held so that it does not fall below the previous smallest distance A1 between the first opening 18 and second opening 20. The geometry of the first opening 18 in conjunction with the recesses 38 is shown in more detail in FIG.

In Figur 3 ist ebenfalls eine als Blindniet ausgebildete Vorsprungeinheit 26 dargestellt, wobei die Blindnietausbildung auf der gegenüberliegenden Kopfseite des Blindniets 26 noch nicht vollzogen ist. In diesem Zustand wird der Keil 34 bereits in die durchgehende Öffnung 32 des Keilkopfelements 30 eingeführt. Daran anschließend wird der Blindniet geschlagen und wodurch der Keil 34 verliersicher an dem Keilkopfelement 30 vorhanden ist.FIG. 3 likewise shows a projection unit 26 in the form of a blind rivet, wherein the blind rivet formation on the opposite side of the blind rivet 26 has not yet been completed. In this state, the wedge 34 is already inserted into the through hole 32 of the wedge head element 30. Subsequently, the blind rivet is struck and whereby the wedge 34 captive on the wedge head element 30 is present.

Die durch die beidseitig vorhandenen Ausnehmungen 38 am ersten Durchbruch 18 vorgenommenen geometrischen Veränderungen lassen sich wie folgt darstellen. Die maximale Breite B des ersten Durchbruchs 18 in Verbindung mit den zusätzlichen Ausnehmungen 38 wird im vorliegenden Ausführungsbeispiel auf circa 18 mm (Millimeter) erhöht. Gleichzeitig liegt der Punkt der maximalen Breite B von der Innenrandkontur 40 des ersten Durchbruchs 18 um das Maß C versetzt nach außen, wobei im konkreten Ausführungsbeispiel das Maß C den Wert von circa 8 mm (Millimeter) annimmt.The geometric changes made by the bilateral recesses 38 on the first opening 18 can be represented as follows. The maximum width B of the first aperture 18 in conjunction with the additional recesses 38 is in the present Embodiment increased to about 18 mm (millimeters). At the same time, the point of the maximum width B of the inner edge contour 40 of the first opening 18 is offset by the dimension C to the outside, wherein in the concrete embodiment, the dimension C assumes the value of about 8 mm (millimeters).

Durch das Vorsehen der oben beschriebenen erweiternden Ausnehmung 38 zu beiden Seiten des ersten Durchbruchs 18 wird einerseits eine Materialersparnis ermöglicht, ohne die Traglast im Wesentlichen zu beeinflussen. Die Rosette 14 wird aufgrund der auftretenden Lasten gleichmäßiger ausgelastet und gleichzeitig wird beim Herausschlagen des Keiles 34 bei der Demontage einem Verhaken desselben entgegengewirkt.By providing the above-described widening recess 38 on both sides of the first opening 18, on the one hand, a saving of material is made possible without essentially influencing the load. The rosette 14 is utilized more evenly due to the loads occurring and at the same time counteracts a hooking same when knocking out the wedge 34 during disassembly.

Claims (7)

  1. Tubular scaffolding system (10), particularly for building scaffolding, with
    - vertical tubular scaffolding posts (12),
    - which are provided at regular intervals with disc-shaped metal roses (14), which are arranged concentrically thereto and fixedly connected therewith and
    - which surround the tubular scaffolding posts (12) in flange-like manner and are provided with passages (18, 20), wherein
    - four first passages (18) provided in the flange-like rose (14) have an elongated oval shape and are so arranged that their longitudinal planes (x, y) intersect at a right angle in the longitudinal centre axis (A) of the scaffolding post (12),
    - a respective second passage (20) is arranged between each two of the elongated ovals of first passages (18),
    - the horizontally or diagonally extending scaffolding elements (22) each have in their end region a respective wedge head element (30), which has an outwardly opening slot (24), which corresponds at least with the thickness of the flange-like roses (14) of the vertical scaffolding post (12), and is respectively provided with a continuous opening (32) extending perpendicularly to the centre plane of the slot (24), characterised in that a widening recess (38) is present at each of the side edges, which extend substantially in radial direction, of the first passage (18), whereby the web width (A) between recess (38) and second passage (20) is reduced in such a manner that the original minimum web width (A1) between the first passage (18) and the second passage (20) is not fallen below.
  2. Tubular scaffolding system according to claim 1, characterised in that the wedge (34) has projection units (26) arranged as loss security means in its end region, which is led through the opening (32), transversely to the longitudinal planes (x, y) and the recesses (38) as seen in a plan view are arranged at the height of these projection units (26).
  3. Tubular scaffolding system according to claim 1, characterised in that the projection unit (26) is constructed as a blind rivet.
  4. Tubular scaffolding system according to one or more of the preceding claims, characterised in that the recess (38) has a partly circular contour.
  5. Tubular scaffolding system according to one or more of the preceding claims, characterised in that the rose (30) consists of steel, particularly S 235 or S 355, with increased yield strength.
  6. Tubular scaffolding system according to one or more of the preceding claims, characterised in that the maximum enlargement size (B) produced by the recesses in the first passage (18) is present approximately at a spacing of 8 mm from the inner edge of the first passage (18).
  7. Tubular scaffolding system according to one or more of the preceding claims, characterised in that the maximum width (B), which is measured in the circumferential direction of the rose (14) and enlarged by the two recesses, of the first passage (D) is approximately 18 mm.
EP01953878A 2000-07-18 2001-07-12 Tubular scaffolding system Expired - Lifetime EP1301673B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20012598U DE20012598U1 (en) 2000-07-18 2000-07-18 Pipe scaffolding system
DE20012598U 2000-07-18
PCT/DE2001/002537 WO2002006610A1 (en) 2000-07-18 2001-07-12 Tubular scaffolding system

Publications (2)

Publication Number Publication Date
EP1301673A1 EP1301673A1 (en) 2003-04-16
EP1301673B1 true EP1301673B1 (en) 2007-03-21

Family

ID=7944200

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01953878A Expired - Lifetime EP1301673B1 (en) 2000-07-18 2001-07-12 Tubular scaffolding system

Country Status (4)

Country Link
EP (1) EP1301673B1 (en)
DE (2) DE20012598U1 (en)
ES (1) ES2279824T3 (en)
WO (1) WO2002006610A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10317842B4 (en) * 2003-04-16 2012-03-01 Wilhelm Layher Verwaltungs-Gmbh Suspension unit
DE202006015586U1 (en) 2006-10-11 2008-02-21 Wilhelm Layher Verwaltungs-Gmbh Vertical frame element made of metal
DE102008006911A1 (en) 2008-01-24 2009-07-30 Wilhelm Layher Verwaltungs-Gmbh For the construction of a frame support, a support frame and / or a shoring tower certain vertical frame
DE102010000472A1 (en) 2010-02-19 2011-08-25 Wilhelm Layher Verwaltungs-GmbH, 74363 Scaffolding and method for mounting or dismounting such scaffolding
DE202010013128U1 (en) 2010-12-15 2011-03-03 Wilhelm Layher Verwaltungs-Gmbh Connecting head device for connection to a perforated disc of a scaffolding handle or for coupling a plurality of perforated discs scaffolding posts
CN104100103A (en) * 2014-07-10 2014-10-15 青岛第一市政工程有限公司 Fabricated lattice type square tube bearing support
CN105544962B (en) * 2015-12-10 2018-07-13 山东拉立克建材科技有限公司 A kind of high torsional rigidity disk button steel pipe support node
IL245800A0 (en) 2016-05-24 2016-08-31 West Pharma Services Il Ltd Dual vial adapter assemblages including identical twin vial adapters
IL249408A0 (en) 2016-12-06 2017-03-30 Medimop Medical Projects Ltd Liquid transfer device for use with infusion liquid container and pincers-like hand tool for use therewith for releasing intact drug vial therefrom
IL254802A0 (en) 2017-09-29 2017-12-31 Medimop Medical Projects Ltd Dual vial adapter assemblages with twin vented female vial adapters
DE102018103898A1 (en) 2018-02-21 2019-08-22 Wilhelm Layher Verwaltungs-Gmbh Stem connector adapter
DE102018114244A1 (en) 2018-06-14 2019-12-19 Wilhelm Layher Verwaltungs-Gmbh Single scaffold arm

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DE2449124C3 (en) 1974-10-16 1980-01-03 Eberhard 7129 Gueglingen Layher Connection device for scaffolding elements
CA2073648A1 (en) * 1991-07-12 1993-01-13 Ronald Lubinski Aluminum scaffold system

Also Published As

Publication number Publication date
WO2002006610A1 (en) 2002-01-24
DE50112234D1 (en) 2007-05-03
ES2279824T3 (en) 2007-09-01
EP1301673A1 (en) 2003-04-16
DE20012598U1 (en) 2000-09-28

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