EP0686741A1 - Clamping connector for assembling a scaffold with prefabricated bar-sections - Google Patents

Clamping connector for assembling a scaffold with prefabricated bar-sections Download PDF

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Publication number
EP0686741A1
EP0686741A1 EP95104789A EP95104789A EP0686741A1 EP 0686741 A1 EP0686741 A1 EP 0686741A1 EP 95104789 A EP95104789 A EP 95104789A EP 95104789 A EP95104789 A EP 95104789A EP 0686741 A1 EP0686741 A1 EP 0686741A1
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EP
European Patent Office
Prior art keywords
profile
clamping
piece
bar
connection according
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.)
Granted
Application number
EP95104789A
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German (de)
French (fr)
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EP0686741B1 (en
Inventor
Krause Günther
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Krause Werk GmbH and Co KG
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Krause Werk GmbH and Co KG
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Publication of EP0686741A1 publication Critical patent/EP0686741A1/en
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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
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
    • E04G1/154—Non-detachably fixed and secured connections between platform and scaffold
    • 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
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/16—Struts or stiffening rods, e.g. diagonal rods
    • 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
    • E04G7/303—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are only fixed at one of the bars or members to connect

Definitions

  • the invention relates to a clamp connection for assembling prefabricated components from profile bars to a scaffolding.
  • Such scaffolding usually has lateral frame elements each consisting of two vertical stands and horizontal crossbars connecting the stands, to which the profile bars are attached essentially or alternatively also to short bracket pieces of the same or similar cross section fastened to the stands, the profile bars already being closed an assembly can be assembled and its longitudinal axes on which the crossbar or bracket pieces are perpendicular and furthermore the profile bars can be placed obliquely or perpendicularly from above onto the crossbars or bracket pieces at their end regions serving for the connection with the crossbars or bracket pieces.
  • Clamp connections of this type are required to a large extent, in particular in scaffolding, in order to connect the frame elements, covering platforms, spars, struts and similar components to one another safely and quickly and to be able to solve them again, especially in the case of scaffolding consisting of prefabricated components.
  • the crossbars and bracket pieces are designed with a constant cross section adapted to the clamp connection.
  • the invention has set itself the task of designing such clamp connections, which are required in very large numbers, so that they consist of components that can be produced cheaply in large numbers in a highly productive process, in particular in the extrusion process, or from commercially available standard parts exist, in which, however, high-stress, load-bearing weld seams can be dispensed with.
  • the object is achieved in that at the end regions of the profiled bars there is in each case a recess overlapping the crossbars or the console pieces, the axis of symmetry of which is directed transversely to the longitudinal axis of the profiled bars and which is in each case opened with a slot towards the underside of the associated profiled bar, so that it can be slipped over the associated cross bar or bracket piece, that the recess is further dimensioned so that the profile bar rests in the direction of its longitudinal axis on the cross bar or bracket piece, and that finally at least partially parallel to the end regions of the profile bars the longitudinal axis of the respective profile bar displaceable and lockable clamping pieces are provided, which in one Close position, covering the slot of the respective recess, clamp the cross bar or the bracket piece in this recess of the profile bar.
  • Such a clamp connection manages with very few additional connecting elements and without load-bearing welded connections.
  • the form-fitting connection of the respective component to a crossbar or a bracket piece is ensured by the frictional engagement of the clamping piece in the position predetermined by the positive engagement, which can be carried out with low operating force, so that a secure clamping connection can be achieved.
  • the recesses in the intermediate rails of a railing located on the scaffolding can therefore remain unlocked if they form a fixed railing frame with the railing rails of this railing and the railing rails are already equipped with clamping connections according to the invention.
  • the area of the wall of the recess lying on the cross bar or the bracket piece is best shaped such that it lies on the cross bar or the bracket piece in a roughly touching manner, because then the surface pressure is low and deformations can be excluded.
  • a locking device is provided, with the aid of which the clamping piece can be locked with respect to the recess at least in a closed and an open position. With appropriate training the locking device any intermediate positions are possible.
  • the clamping piece can be such that it is designed as a parallel to the associated profile bar profile piece;
  • the clamping piece is advantageously provided in the direction of its longitudinal axis on a web suitable as a clamping surface with an elongated hole which is penetrated by a bolt of the locking device which can be screwed onto the profile bar.
  • the clamping piece on the profile piece is stationary and cannot be lost, axially movable and can be fixed in any position.
  • the clamp connection is particularly handy if the bolt is designed as a threaded bolt and the clamp piece can be clamped by means of a grip nut located on the bolt; it goes without saying that other operating elements are also conceivable, for example a toggle lever operation.
  • the parallelism of the clamping piece and the profiled rod should be ensured, for example by providing a spacer between the web and the profiled rod, for example a nut fastened to the clamping piece or the profiled rod, which serves at the same time to extend the nut thread for the threaded bolt.
  • a pressure surface of the clamping piece which can be clamped to the crossbar or the bracket piece follows the cross-sectional shape of the crossbar, so that together with the wall of the recess the clamped cross section is applied on all sides and is exposed to the risk of deformation.
  • a particularly good storage of the clamping piece is achieved one if the profile bar is designed as a rectangular hollow profile and the clamping piece as a U-profile and the straps of the U-profile rest against the side walls of the profile bar.
  • a covering platform a mostly diagonal longitudinal or transverse strut, a longitudinal or transverse railing or intermediate rail of the railing or another similar component can be connected to a crossbar or a bracket piece on a stand.
  • these components have the same cross section in their profile bars, a single design of the few components used and the recess on the profile bars is sufficient for all clamping connections.
  • FIG. 1 A typical scaffolding is shown in FIG. 1, which is provided here with a chassis. It consists of a number of components that recur with such scaffolding.
  • Lateral, multi-part frame elements 1 consist of vertical uprights 11 and horizontal crossbars 12 connecting uprights 11, which are also used here as ladder rungs and are welded to uprights 11 in a correspondingly narrow division. They are therefore well suited for connecting the frame element 1 to the other components of the scaffolding.
  • Short bracket pieces can be provided on the stands 11, in particular if connections of other components are required at locations where a cross bar 12 is not available, for example if cross struts have to be connected.
  • the following explanations, which generally relate to crossbar 12 also apply in the same sense to console pieces of this type, which are not taken into account in the drawing.
  • two horizontal covering platforms 2 are fastened to the frame elements 1, of which the upper covering platform 2a has a passage 21 which can be closed with a flap 22 (FIG. 7) and is delimited by transverse and longitudinal rims 23 and 24.
  • the covering platform 2a is secured by a railing 3, which consists of railing bars 31, intermediate bars 32 and connecting pieces 33 (FIG. 6); the lower platform 2b does not need a railing 3.
  • longitudinal struts 41 are also cross struts, if appropriate Bracing 4 is provided, which, together with the covering platforms 2, give the scaffolding the necessary rigidity.
  • the crossbars 12 suitably consist like the stands 11 of circular cylindrical tubes; other profiles are conceivable and can also be easily connected to the clamp connection according to the invention, which is then to be designed slightly differently.
  • all the other components are composed of profile bars P, which in cross section consist of a rectangular hollow profile, as can be seen in particular from FIGS. 4 and 5.
  • profile bars P can instead be provided with a differently shaped cross section; however, this advantageously has the same dimensions, regardless of the respective component, so that uniformly dimensioned clamp connections are possible and only a few different components are required.
  • the area of a clamp connection according to the invention can be seen in detail in FIGS. 8 and 9.
  • the profile rod P is closed (on both sides) with a stopper S.
  • a recess PA is located in an end region PF of the profile bar P and follows the profile of the cross bar 12 in its upper region PA1 with an axis of symmetry PQ transverse to the longitudinal axis PL of the profile bar P and in the direction of the longitudinal axis 121 (FIG. 4) of the cross bar 12 , so that there the recess PA rests flat on the associated cross bar 12.
  • a slot PA2 opens the recess PA towards the underside PU of the profile bar P and is dimensioned such that the profile bar P lies over the cross bar 12 with only slight play in the direction of its longitudinal axis PL.
  • Insertion bevels PE make it easier to overlap the transom 12.
  • a bolt 51 of a locking device 5 is provided on the profile rod P with a thread 51a in a stationary but screwable manner; a welded to the profile bar P spacer PD extends the nut thread of the thread 51a and ensures that a clamping piece 6 there is such a distance from the profile bar P that it is approximately parallel when the associated cross bar 12 is placed in the recess PA and is overlaid by the clamping piece 6.
  • a handle 52 fixed to the bolt 51 facilitates operation.
  • the clamping piece 6 is designed as a U-shaped profile, the straps 61 of which rest against the side walls PS of the associated profile bar P, comprising this with a slight play, while the connecting web 62 strikes the spacer piece PD.
  • an elongated hole 62a (FIG. 5) is broken through in the direction of the longitudinal axis 64 of the clamping piece 6, which is penetrated by the bolt 51 and makes the clamping piece 6 displaceable to a limited extent.
  • the arrangement is such that (in FIG. 8) the clamping piece 6 can be shifted to the right to such an extent that the slot PA2 is no longer covered.
  • the position of the clamping piece 6 shown in FIG. 8 corresponds to the final one in the assembled state of FIG. 4.
  • the clamping piece 6 then loads the cross bar 12 with a pressure surface 63 in the two belts 61, the shape of which is adapted to the cross section of the cross bar 12 in such a way that a flat contact is ensured and the surface pressure is bearable.

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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)
  • Clamps And Clips (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

The connection comprises recesses (PA) in the ends (PF) of profiled bar (P) which fit at right angles over the crossbars (12) or bracket piece of the scaffolding (1). Each recess is open on the underside of the bottom (PU) of the profiled bar via a slot (PA2), to allow for fitting over the crossbar or bracket piece. The recess is shaped so that the profiled bar cannot slide along its lengthwise axis (PL) on the crossbar or bracket piece. Clamps (6) slide along the ends of the profiled bar and are lockable in position so as to cover the slots and clamp the crossbar or bracket piece in position. <IMAGE>

Description

Die Erfindung betrifft eine Klemmverbindung zum Zusammenbau von vorgefertigten Bauelementen aus Profilstäben zu einem Baugerüst. Ein derartiges Baugerüst hat in der Regel seitliche Rahmenelemente aus je zwei senkrechten Ständern und die Ständer verbindenden waagerechten Querriegeln, an denen im wesentlichen oder hilfsweise auch an kurzen, an den Ständern befestigten Konsolstücken gleichen oder ähnlichen Querschnitts die Profilstäbe befestigt werden, wobei die Profilstäbe bereits zu einer Baugruppe Zusammengebaut sein können und ihre Längsachsen auf denen der Querriegel oder Konsolstücke senkrecht stehen und wobei ferner die Profilstäbe an ihren für die Verbindung mit den Querriegeln oder Konsolstücken dienenden Endbereichen schräg oder senkrecht von oben auf die Querriegel oder Konsolstücke auflegbar sind.The invention relates to a clamp connection for assembling prefabricated components from profile bars to a scaffolding. Such scaffolding usually has lateral frame elements each consisting of two vertical stands and horizontal crossbars connecting the stands, to which the profile bars are attached essentially or alternatively also to short bracket pieces of the same or similar cross section fastened to the stands, the profile bars already being closed an assembly can be assembled and its longitudinal axes on which the crossbar or bracket pieces are perpendicular and furthermore the profile bars can be placed obliquely or perpendicularly from above onto the crossbars or bracket pieces at their end regions serving for the connection with the crossbars or bracket pieces.

Klemmverbindungen dieser Art sind insbesondere im Gerüstbau in großem Umfang erforderlich, um die Rahmenelemente, Belagbühnen, Holme, Verstrebungen und ähnliche Bauelemente miteinander sicher und schnell verbinden und wieder lösen zu können, insbesondere bei aus vorgefertigten Bauelementen bestehenden Baugerüsten.Clamp connections of this type are required to a large extent, in particular in scaffolding, in order to connect the frame elements, covering platforms, spars, struts and similar components to one another safely and quickly and to be able to solve them again, especially in the case of scaffolding consisting of prefabricated components.

Während die Raumform des anzuschließenden Bauelementes an der Anschlußstelle für den Klemmverbindung relativ beliebig ist und eben nur dessen sichere Befestigung gewährleistet sein muß, sind die Querriegel und Konsolstücke mit einem stets gleichbleibenden, der Klemmverbindung angepaßten Querschnitt ausgeführt.While the spatial shape of the component to be connected at the connection point for the clamp connection is relatively arbitrary and only its secure attachment has to be ensured, the crossbars and bracket pieces are designed with a constant cross section adapted to the clamp connection.

Die Erfindung hat sich die Aufgabe gestellt, derartige Klemmverbindungen, die in sehr großen Stückzahlen benötigt werden, so zu gestalten, daß sie aus Bauteilen bestehen, die in großen Stückzahlen in einem hochproduktiven Verfahren, insbesondere im Strangpreßverfahren, billig angefertigt werden können oder aus handelsüblichen Standardteilen bestehen, bei denen darüberhinaus aber auf hochbelastete, tragende Schweißnähte verzichtet werden kann.The invention has set itself the task of designing such clamp connections, which are required in very large numbers, so that they consist of components that can be produced cheaply in large numbers in a highly productive process, in particular in the extrusion process, or from commercially available standard parts exist, in which, however, high-stress, load-bearing weld seams can be dispensed with.

Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß an den Endbereichen der Profilstäbe jeweils eine die Querriegel oder die Konsolstücke überfangende Ausnehmung vorgesehen ist, deren Symmetrieachse quer zu der Längsachse der Profilstäbe gerichtet und die jeweils mit einem Schlitz zu der Unterseite des zugehörigen Profilstabes hin geöffnet ist, so daß sie über den zugehörigen Querriegel oder das Konsolstück gestreift werden kann, daß weiterhin die Ausnehmung so bemessen ist, daß der Profilstab in Richtung seiner Längsachse unverschieblich auf dem Querriegel oder dem Konsolstück aufliegt, und daß schließlich an den Endbereichen der Profilstäbe zumindest teilweise parallel zu der Längsachse des jeweiligen Profilstabes verschieb- und arretierbare Klemmstücke vorgesehen sind, die in einer Schließstellung, den Schlitz der jeweiligen Ausnehmung überdeckend, den Querriegel oder das Konsolstück in dieser Ausnehmung des Profilstabes festklemmen.According to the invention the object is achieved in that at the end regions of the profiled bars there is in each case a recess overlapping the crossbars or the console pieces, the axis of symmetry of which is directed transversely to the longitudinal axis of the profiled bars and which is in each case opened with a slot towards the underside of the associated profiled bar, so that it can be slipped over the associated cross bar or bracket piece, that the recess is further dimensioned so that the profile bar rests in the direction of its longitudinal axis on the cross bar or bracket piece, and that finally at least partially parallel to the end regions of the profile bars the longitudinal axis of the respective profile bar displaceable and lockable clamping pieces are provided, which in one Close position, covering the slot of the respective recess, clamp the cross bar or the bracket piece in this recess of the profile bar.

Eine solche Klemmverbindung kommt mit ganz wenigen zusätzlichen Verbindungselementen und ohne tragende Schweißverbindungen aus. Die formschlüssige Anbindung des jeweiligen Bauelementes an einem Querriegel oder einem Konsolstück wird dabei durch den mit geringer Bedienkraft ausführbaren Reibschluß der Klemmung des Klemmstückes in der durch den Formschluß vorgegebenen Lage abgesichert, so daß eine sichere Klemmverbindung erreichbar ist.Such a clamp connection manages with very few additional connecting elements and without load-bearing welded connections. The form-fitting connection of the respective component to a crossbar or a bracket piece is ensured by the frictional engagement of the clamping piece in the position predetermined by the positive engagement, which can be carried out with low operating force, so that a secure clamping connection can be achieved.

Es ist ausreichend, wenn an jedem Bauelement zumindest zwei der an den Profilstäben vorgesehenen Ausnehmungen mit Klemmstücken verschließbar sind; beispielsweise können deshalb die Ausnehmungen in den Zwischenholmen eines an dem Baugerüst befindlichen Geländers unverschlossen bleiben, wenn sie mit den Geländerholmen dieses Geländers einen festen Geländerrahmen bilden und bereits die Geländerholme mit erfindungsgemäßen Klemmberbindungen ausgestattet sind.It is sufficient if at least two of the recesses provided on the profile bars can be closed with clamping pieces on each component; For example, the recesses in the intermediate rails of a railing located on the scaffolding can therefore remain unlocked if they form a fixed railing frame with the railing rails of this railing and the railing rails are already equipped with clamping connections according to the invention.

Der auf dem Querriegel oder dem Konsolstück aufliegende Bereich der Wandung der Ausnehmung ist am besten so geformt, daß er auf dem Querriegel oder dem Konsolstück etwa flächig berührend aufliegt, weil dann die Flächenpressung gering ist und Verformungen ausgeschlossen werden können.The area of the wall of the recess lying on the cross bar or the bracket piece is best shaped such that it lies on the cross bar or the bracket piece in a roughly touching manner, because then the surface pressure is low and deformations can be excluded.

Es genügt, wenn eine Feststellvorrichtung vorgesehen ist, mit deren Hilfe das Klemmstück mindestens in einer Schließ- und einer Öffnungsstellung in bezug auf die Ausnehmung feststellbar ist. Bei entsprechender Ausbildung der Feststellvorrichtung sind auch beliebige Zwischenstellungen möglich.It is sufficient if a locking device is provided, with the aid of which the clamping piece can be locked with respect to the recess at least in a closed and an open position. With appropriate training the locking device any intermediate positions are possible.

Das Klemmstück kann im einzelnen so beschaffen sein, daß es als zu dem zugehörigen Profilstab paralleles Profilstück ausgebildet ist; vorteilhaft ist das Klemmstück in Richtung seiner Längsachse auf einem als Klemmfläche geeignete Steg mit einem Langloch versehen, das von einem an dem Profilstab schraubbaren Bolzen der Feststellvorrichtung durchsetzt wird. Auf diese einfache Weise ist das Klemmstück an dem Profilstück ortsfest und unverlierbar axial beweglich sowie in einer beliebigen Position fixierbar.The clamping piece can be such that it is designed as a parallel to the associated profile bar profile piece; The clamping piece is advantageously provided in the direction of its longitudinal axis on a web suitable as a clamping surface with an elongated hole which is penetrated by a bolt of the locking device which can be screwed onto the profile bar. In this simple manner, the clamping piece on the profile piece is stationary and cannot be lost, axially movable and can be fixed in any position.

Besonders handlich ist die Klemmverbindung, wenn der Bolzen als Gewindebolzen ausgebildet ist und das Klemmstück mittels einer auf dem Bolzen befindlichen Griffmutter klemmbar ist; es versteht sich, daß andere Bedienelemente ebenfalls denkbar sind, etwa eine Kniehebelbetätigung. In jedem Falle sollte die Parallelität von Klemmstück und Profilstab gewährleistet sein, beispielsweise, indem zwischen dem Steg und dem Profilstab ein Distanzstück vorgesehen ist, etwa eine an dem Klemmstück oder dem Profilstab befestigte Mutter, die dabei gleichzeitig zur Verlängerung des Muttergewindes für den Gewindebolzen dient.The clamp connection is particularly handy if the bolt is designed as a threaded bolt and the clamp piece can be clamped by means of a grip nut located on the bolt; it goes without saying that other operating elements are also conceivable, for example a toggle lever operation. In any case, the parallelism of the clamping piece and the profiled rod should be ensured, for example by providing a spacer between the web and the profiled rod, for example a nut fastened to the clamping piece or the profiled rod, which serves at the same time to extend the nut thread for the threaded bolt.

Es ist zweckmäßig, wenn eine an den Querriegel oder das Konsolstück anklemmbare Druckfläche des Klemmstückes der Querschnittsform des Querriegels folgt, so daß zusammen mit der Wandung der Ausnehmung der eingespannte Querschnitt allseits anliegend und der Gefahr einer Verformung ausgesetzt ist.It is expedient if a pressure surface of the clamping piece which can be clamped to the crossbar or the bracket piece follows the cross-sectional shape of the crossbar, so that together with the wall of the recess the clamped cross section is applied on all sides and is exposed to the risk of deformation.

Eine besonders gute Lagerung des Klemmstückes erreicht man, wenn der Profilstab als rechteckiges Hohlprofil und das Klemmstück als U-Profil ausgebildet ist und die Gurte des U-Profiles an den Seitenwänden des Profilstabes anliegen.A particularly good storage of the clamping piece is achieved one if the profile bar is designed as a rectangular hollow profile and the clamping piece as a U-profile and the straps of the U-profile rest against the side walls of the profile bar.

Mit Hilfe der erfindungsgemäßen Klemmverbindung kann eine Belagbühne, eine zumeist diagonale Längs- oder Querverstrebung, ein längs oder quer verlaufender Geländer- oder Zwischenholm des Geländers oder ein anderes ähnliches Bauelement mit einem Querriegel oder einem Konsolstück an einem Ständer verbunden werden. Soweit diese Bauelemente dabei den gleichen Querschnitt in ihren Profilstäben aufweisen, genügt für alle Klemmverbindungen eine einzige Ausführung der dabei verwendeten wenigen Bauteile und der Ausnehmung an den Profilstäben.With the help of the clamp connection according to the invention, a covering platform, a mostly diagonal longitudinal or transverse strut, a longitudinal or transverse railing or intermediate rail of the railing or another similar component can be connected to a crossbar or a bracket piece on a stand. Insofar as these components have the same cross section in their profile bars, a single design of the few components used and the recess on the profile bars is sufficient for all clamping connections.

Die Erfindung wird nachstehend an Hand der Zeichnung an einem Ausführungsbeispiel näher erläutert. Es zeigen in schematischer Darstellung

Fig. 1
in mittels erfindungsgemäßer Klemmverbindungen aufgebautes (fahrbares) Baugerüst,
Fig. 2 bis Fig. 4
Klemmverbindungen (vergrößert) aus Fig. 1 entsprechend den Einzelheiten A, B und C,
Fig. 5
die reine Klemmverbindung der Fig. 4, jedoch steiler gezeichnet und weiter vergrößert,
Fig. 6
ein Geländerfeld und Fig. 7 eine Belagbühne aus Fig. 1, jeweils leicht gedreht gezeichnet, sämtlich in räumlicher Darstellung,
Fig. 8
eine erfindungsgemäße Klemmverbindung in der Vorderansicht und
Fig. 9
eine Ansicht D aus Fig. 8.
The invention is explained below with reference to the drawing using an exemplary embodiment. They show a schematic representation
Fig. 1
in (mobile) scaffolding constructed using the clamp connections according to the invention,
2 to 4
1 according to the details A, B and C,
Fig. 5
4, but drawn steeper and further enlarged,
Fig. 6
7 a covering platform from FIG. 1, each drawn slightly rotated, all in a spatial representation,
Fig. 8
a clamp connection according to the invention in front view and
Fig. 9
8 shows a view D from FIG. 8.

In der Fig. 1 ist ein typisches Baugerüst gezeigt, das hier mit einem Fahrwerk versehen ist. Es besteht aus einigen bei derartigen Baugerüsten immer wiederkehrenden Bauelementen. Seitliche, mehrteilige Rahmenelemente 1 bestehen aus senkrechten Ständern 11 und waagerechten, die Ständer 11 verbindenden Querriegeln 12, die hier auch als Leitersprossen verwendet werden und in entsprechend enger Teilung an den Ständern 11 angeschweißt sind. Sie eignen sich deshalb gut zur Verbindung des Rahmenelementes 1 mit den übrigen Bauelementen des Baugerüstes. An den Ständern 11 können kurze Konsolstücke vorgesehen sein, insbesondere, wenn Anschlüsse von anderen Bauelementen an Stellen erforderlich sind, an denen kein Querriegel 12 verfügbar ist, beispielsweise, wenn Querverstrebungen angeschlossen werden müssen. Die folgenden, generell auf Querriegel 12 bezogenen Ausführungen gelten im gleichen Sinne auch für derartige, in der Zeichnung nicht berückichtigte Konsolstücke.A typical scaffolding is shown in FIG. 1, which is provided here with a chassis. It consists of a number of components that recur with such scaffolding. Lateral, multi-part frame elements 1 consist of vertical uprights 11 and horizontal crossbars 12 connecting uprights 11, which are also used here as ladder rungs and are welded to uprights 11 in a correspondingly narrow division. They are therefore well suited for connecting the frame element 1 to the other components of the scaffolding. Short bracket pieces can be provided on the stands 11, in particular if connections of other components are required at locations where a cross bar 12 is not available, for example if cross struts have to be connected. The following explanations, which generally relate to crossbar 12, also apply in the same sense to console pieces of this type, which are not taken into account in the drawing.

So sind an den Rahmenelementen 1 zwei waagerechte Belagbühnen 2 befestigt, von denen die obere Belagbühne 2a einen Durchstieg 21 hat, der mit einer Klappe 22 (Fig. 7) verschließbar ist, und von Quer- und Längsborden 23 und 24 begrenzt ist. Außerdem ist die Belagbühne 2a durch ein Geländer 3 gesichert, das aus Geländerholmen 31, Zwischenholmen 32 und Verbindungsstücken 33 (Fig. 6) besteht; die untere Belagbühne 2b kommt ohne ein Geländer 3 aus. Schließlich sind Längsverstrebungen 41 einer gegebenenfalls auch Querverstrebungen umfassenden Verstrebung 4 vorgesehen, die zusammen mit den Belagbühnen 2 dem Baugerüst die nötige Steifigkeit verleihen.Thus, two horizontal covering platforms 2 are fastened to the frame elements 1, of which the upper covering platform 2a has a passage 21 which can be closed with a flap 22 (FIG. 7) and is delimited by transverse and longitudinal rims 23 and 24. In addition, the covering platform 2a is secured by a railing 3, which consists of railing bars 31, intermediate bars 32 and connecting pieces 33 (FIG. 6); the lower platform 2b does not need a railing 3. Finally, longitudinal struts 41 are also cross struts, if appropriate Bracing 4 is provided, which, together with the covering platforms 2, give the scaffolding the necessary rigidity.

Die Querriegel 12 bestehen zweckmäßig wie die Ständer 11 aus kreiszylindrischen Rohren; andere Profile sind aber denkbar und können an die erfindungsgemäßen Klemmverbindung ebenfalls ohne weiteres angeschlossen werden, die dann geringfügig anders zu gestalten ist. Im Gegensatz dazu sind alle anderen Bauelemente aus Profilstäben P zusammengesetzt, die im Querschnitt aus einem rechteckigen Hohlprofil bestehen, wie insbesondere aus den Fig. 4 und 5 ablesbar ist. Auch diese Profilstäbe P können stattdessen mit einem anders geformten Querschnitt versehen sein; dieser weist aber, unabhängig von dem jeweiligen Bauelement, vorteilhaft die gleichen Abmessungen auf, so daß einheitliche bemessene Klemmverbindungen möglich sind und nur wenige verschiedene Bauteile benötigt werden.The crossbars 12 suitably consist like the stands 11 of circular cylindrical tubes; other profiles are conceivable and can also be easily connected to the clamp connection according to the invention, which is then to be designed slightly differently. In contrast, all the other components are composed of profile bars P, which in cross section consist of a rectangular hollow profile, as can be seen in particular from FIGS. 4 and 5. These profile bars P can instead be provided with a differently shaped cross section; however, this advantageously has the same dimensions, regardless of the respective component, so that uniformly dimensioned clamp connections are possible and only a few different components are required.

Der Bereich einer erfindungsgemäßen Klemmverbindung ist ausführlich in den Fig. 8 und 9 ersichtlich. Der Profilstab P ist (beiderseits) mit einem Stopfen S verschlossen. Eine Ausnehmung PA befindet sich in einem Endbereich PF des Profilstabes P und folgt mit einer Symmetrieachse PQ quer zu der Längsachse PL des Profilstabes P und in Richtung der Längsachse 121 (Fig. 4) des Querriegels 12 in ihrem oberen Bereich PA1 dem Profil des Querriegels 12, so daß dort die Ausnehmung PA flächig auf dem zugehörigen Querriegel 12 aufliegt. Ein Schlitz PA2 öffnet die Ausnehmung PA nach der Unterseite PU des Profilstabes P und ist so bemessen, daß der Profilstab P mit nur leichtem Spiel in Richtung seiner Längsachse PL über dem Querriegel 12 aufliegt.The area of a clamp connection according to the invention can be seen in detail in FIGS. 8 and 9. The profile rod P is closed (on both sides) with a stopper S. A recess PA is located in an end region PF of the profile bar P and follows the profile of the cross bar 12 in its upper region PA1 with an axis of symmetry PQ transverse to the longitudinal axis PL of the profile bar P and in the direction of the longitudinal axis 121 (FIG. 4) of the cross bar 12 , so that there the recess PA rests flat on the associated cross bar 12. A slot PA2 opens the recess PA towards the underside PU of the profile bar P and is dimensioned such that the profile bar P lies over the cross bar 12 with only slight play in the direction of its longitudinal axis PL.

Einführungsschrägen PE erleichtern das Überfangen des Querriegels 12.Insertion bevels PE make it easier to overlap the transom 12.

Ein Bolzen 51 einer Feststellvorrichtung 5 ist an dem Profilstab P mit einem Gewinde 51a ortsfest, aber schraubbar vorgesehen; ein an dem Profilstab P angeschweißtes Distanzstück PD verlängert das Muttergewinde des Gewindes 51a und sorgt dafür, daß ein Klemmstück 6 dort einen solchen Abstand von dem Profilstab P hat, daß es diesem etwa parallel ist, wenn der zugehörige Querriegel 12 in der Ausnehmung PA plaziert und von dem Klemmstück 6 überfangen ist. Ein an dem Bolzen 51 fixiertes Griffstück 52 erleichtert die Bedienung.A bolt 51 of a locking device 5 is provided on the profile rod P with a thread 51a in a stationary but screwable manner; a welded to the profile bar P spacer PD extends the nut thread of the thread 51a and ensures that a clamping piece 6 there is such a distance from the profile bar P that it is approximately parallel when the associated cross bar 12 is placed in the recess PA and is overlaid by the clamping piece 6. A handle 52 fixed to the bolt 51 facilitates operation.

Das Klemmstück 6 ist als U-Profil ausgebildet, dessen Gurte 61 an den Seitenwänden PS des zugehörigen Profilstabes P, diesen mit leichtem Spiel umfassend, anliegen, während der verbindende Steg 62 an dem Distanzstück PD anschlägt. In dem Steg 62 ist in Richtung der Längsachse 64 des Klemmstückes 6 ein Langloch 62a (Fig. 5) durchgebrochen, das von dem Bolzen 51 durchsetzt wird und das Klemmstück 6 begrenzt längsverschiebbar macht. Die Anordnung ist so getroffen, daß (in der Fig. 8) das Klemmstück 6 soweit nach rechts verschiebbar ist, daß der Schlitz PA2 nicht mehr überdeckt ist. Die in Fig. 8 dargestellte Position des Klemmstückes 6 entspricht der endültigen im zusammengebauten Zustand der Fig. 4.The clamping piece 6 is designed as a U-shaped profile, the straps 61 of which rest against the side walls PS of the associated profile bar P, comprising this with a slight play, while the connecting web 62 strikes the spacer piece PD. In the web 62, an elongated hole 62a (FIG. 5) is broken through in the direction of the longitudinal axis 64 of the clamping piece 6, which is penetrated by the bolt 51 and makes the clamping piece 6 displaceable to a limited extent. The arrangement is such that (in FIG. 8) the clamping piece 6 can be shifted to the right to such an extent that the slot PA2 is no longer covered. The position of the clamping piece 6 shown in FIG. 8 corresponds to the final one in the assembled state of FIG. 4.

Das Klemmstück 6 belastet den Querriegel 12 dann mit einer Druckfläche 63 in den beiden Gurten 61, deren Form dem Querschnitt des Querriegels 12 so angepaßt ist, daß eine flächige Anlage gewährleistet und die Flächenpressung ertragbar ist.The clamping piece 6 then loads the cross bar 12 with a pressure surface 63 in the two belts 61, the shape of which is adapted to the cross section of the cross bar 12 in such a way that a flat contact is ensured and the surface pressure is bearable.

Aufstellung der BezugszeichenList of reference numbers

11
RahmenelementFrame element
1111
StänderStand
1212th
QuerriegelCrossbar
121121
LängsachseLongitudinal axis
22nd
BelagbühneTopping platform
2a2a
Belagbühne (obere)Covering platform (upper)
2b2 B
Belagbühne (untere)Platform (lower)
2121
DurchstiegStep through
2222
Klappeflap
2323
QuerbordBow side
2424th
LängsbordLongboard
33rd
Geländerrailing
3131
GeländerholmGuardrail
3232
ZwischenholmIntermediate spar
3333
VerbindungsstückConnector
44th
VerstrebungBracing
4141
LängsverstrebungLongitudinal strut
55
FeststellvorrichtungLocking device
5151
Bolzenbolt
51a51a
Gewindethread
5252
GriffstückHandle
66
KlemmstückClamp
6161
Gurtbelt
6262
Stegweb
62a62a
LanglochLong hole
6363
DruckflächePrinting area
6464
LängsachseLongitudinal axis
PP
ProfilstabProfile bar
PAPA
AusnehmungRecess
PA1PA1
BereichArea
PA2PA2
Schlitzslot
PDPD
DistanzstückSpacer
PEPE
EinführungsschrägeIntroductory slope
PFPF
EndbereichEnd area
PLPL
LängsachseLongitudinal axis
PQPQ
SymmetrieachseAxis of symmetry
PSPS
SeitenwandSide wall
PUPU
Unterseitebottom
SS
StopfenPlug

Claims (11)

Klemmverbindung zum Zusammenbau von vorgefertigten Bauelementen aus Profilstäben zu einem Baugerüst,
dadurch gekennzeichnet, daß (a) an den Endbereichen (PF) der Profilstäbe (P) jeweils eine die Querriegel (12) oder die Konsolstücke überfangende Ausnehmung (PA) vorgesehen ist, deren Symmetrieachse (PQ) quer zu der Längsachse (PL) der Profilstäbe (P) gerichtet und die jeweils mit einem Schlitz (PA2) zu der Unterseite (PU) des zugehörigen Profilstabes (P) hin geöffnet ist, so daß sie über den zugehörigen Querriegel (12) oder das Konsolstück gestreift werden kann, (b) die Ausnehmung (PA) so bemessen ist, daß der Profilstab (P) in Richtung seiner Längsachse (PL) unverschieblich auf dem Querriegel (12) oder dem Konsolstück aufliegt, (c) an den Endbereichen (PF) der Profilstäbe (P) zumindest teilweise parallel zu der Längsachse (PL) des jeweiligen Profilstabes (P) verschieb- und arretierbare Klemmstücke (6) vorgesehen sind, die in einer Schließstellung, den Schlitz (PA2) der jeweiligen Ausnehmung (PA) überdeckend, den Querriegel (12) oder das Konsolstück in dieser Ausnehmung (PA) des Profilstabes (P) festklemmen. Clamp connection for assembling prefabricated components from profile bars to a scaffolding,
characterized in that (a) at the end regions (PF) of the profile bars (P) there is in each case a recess (PA) overlapping the transverse bars (12) or the console pieces, the axis of symmetry (PQ) of which is directed transversely to the longitudinal axis (PL) of the profile bars (P) and which is opened with a slot (PA2) towards the underside (PU) of the associated profile bar (P) so that it can be slipped over the associated cross bar (12) or the bracket piece, (b) the recess (PA) is dimensioned such that the profile bar (P) rests immovably on the cross bar (12) or the bracket piece in the direction of its longitudinal axis (PL), (c) at the end regions (PF) of the profile bars (P) at least partially parallel to the longitudinal axis (PL) of the respective profile bar (P) displaceable and lockable clamping pieces (6) are provided which, in a closed position, the slot (PA2) of the respective recess (PA) covering, clamp the cross bar (12) or the bracket piece in this recess (PA) of the profile bar (P). Klemmverbindung nach Anspruch 1, dadurch gekennzeichnet, daß an jedem Bauelement (2,3,4) zumindest zwei der an den Profilstäben (P) vorgesehenen Ausnehmungen (PA) mit Klemmstücken (6) verschließbar sind.Clamping connection according to claim 1, characterized in that on each component (2, 3, 4) at least two of the recesses (PA) provided on the profile bars (P) can be closed with clamping pieces (6). Klemmverbindung nach Anspruch 1, dadurch gekennzeichnet, daß der auf dem Querriegel (12) oder dem Konsolstück aufliegende Bereich (PA1) der Ausnehmung (PA) so geformt ist, daß er auf dem Querriegel (12) oder dem Konsolstück etwa flächig berührend aufliegt.Clamping connection according to claim 1, characterized in that the area (PA1) of the recess (PA) resting on the cross bar (12) or the bracket piece is shaped such that it rests on the cross bar (12) or the bracket piece with approximately flat contact. Klemmverbindung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß eine Feststellvorrichtung (5) vorgesehen ist, mit deren Hilfe das Klemmstück (6) mindestens in einer Schließ- und einer Öffnungsstellung in bezug auf die Ausnehmung (PA) feststellbar ist.Clamping connection according to one of claims 1 to 3, characterized in that a locking device (5) is provided, by means of which the clamping piece (6) can be locked at least in a closed and an open position with respect to the recess (PA). Klemmverbindung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Klemmstück (6) als zu dem zugehörigen Profilstab (P) paralleles Profilstück ausgebildet ist.Clamping connection according to one of claims 1 to 4, characterized in that the clamping piece (6) is designed as a profile piece parallel to the associated profile bar (P). Klemmverbindung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Klemmstück (6) in Richtung seiner Längsachse (64) auf einem als Klemmfläche geeignete Steg (62) mit einem Langloch (62a) versehen ist, das von einem an dem Profilstab (P) schraubbaren Bolzen (51) der Feststellvorrichtung (5) durchsetzt wird.Clamping connection according to one of claims 1 to 5, characterized in that the clamping piece (6) is provided in the direction of its longitudinal axis (64) on a web (62) suitable as a clamping surface with an elongated hole (62a) which is provided on the profile rod ( P) screwable bolt (51) of the locking device (5) is penetrated. Klemmverbindung nach Anspruch 6, dadurch gekennzeichnet, daß der Bolzen (51) als Gewindebolzen ausgebildet ist und das Klemmstück (6) mittels einer auf dem Bolzen (51) befindlichen Griffmutter (52) klemmbar ist.Clamping connection according to claim 6, characterized in that the bolt (51) is designed as a threaded bolt and the clamping piece (6) by means of a handle nut (52) located on the bolt (51) can be clamped. Klemmverbindung nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß zwischen dem Steg (62) und dem Profilstab (P) ein Distanzstück (PD) vorgesehen ist in der Weise, daß das mittels der Feststellvorrichtung (5) arretierte Klemmstück (6) dem Profilstab (P) etwa parallel ist.Clamping connection according to claim 6 or 7, characterized in that a spacer (PD) is provided between the web (62) and the profile bar (P) in such a way that the clamping piece (6) locked by means of the locking device (5) connects the profile bar ( P) is approximately parallel. Klemmverbindung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß eine an den Querriegel (12) oder das Konsolstück anklemmbare Druckfläche (63) des Klemmstückes (6) der Querschnittsform des Querriegels (12) folgt.Clamping connection according to one of claims 1 to 8, characterized in that a pressure surface (63) of the clamping piece (6) which can be clamped onto the crossbar (12) or the bracket piece follows the cross-sectional shape of the crossbar (12). Klemmverbindung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß der Profilstab (P) als rechteckiges Hohlprofil und das Klemmstück (6) als U-Profil ausgebildet ist und die Gurte (61) des U-Profiles an den Seitenwänden (PS) des Profilstabes (P) anliegen.Clamping connection according to one of claims 1 to 9, characterized in that the profile bar (P) is designed as a rectangular hollow profile and the clamping piece (6) as a U-profile and the straps (61) of the U-profile on the side walls (PS) of the Fit the profile bar (P). Klemmverbindung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß sie eine Belagbühne (2), eine zumeist diagonale Längs- oder Querverstrebung (4), einen längs oder quer verlaufenden Geländer- oder Zwischenholm (31,32) des Geländers (3) oder ein anderes ähnliches Bauelement mit einem Querriegel (12) oder einem Konsolstück an einem Ständer (11) verbindet.Clamping connection according to one of claims 1 to 10, characterized in that it comprises a covering platform (2), a mostly diagonal longitudinal or transverse strut (4), a longitudinal or transverse railing or intermediate rail (31, 32) of the railing (3) or connects another similar component with a cross bar (12) or a bracket piece on a stand (11).
EP95104789A 1994-06-10 1995-03-31 Clamping connector for assembling a scaffold with prefabricated bar-sections Expired - Lifetime EP0686741B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9409418U 1994-06-10
DE9409418U DE9409418U1 (en) 1994-06-10 1994-06-10 Clamp connection for assembling prefabricated profile bars into a scaffolding

Publications (2)

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EP0686741A1 true EP0686741A1 (en) 1995-12-13
EP0686741B1 EP0686741B1 (en) 1999-08-11

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ID=6909695

Family Applications (1)

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EP95104789A Expired - Lifetime EP0686741B1 (en) 1994-06-10 1995-03-31 Clamping connector for assembling a scaffold with prefabricated bar-sections

Country Status (13)

Country Link
US (1) US5823292A (en)
EP (1) EP0686741B1 (en)
CN (1) CN1150465A (en)
AT (1) ATE183276T1 (en)
CA (1) CA2192482A1 (en)
CZ (1) CZ330396A3 (en)
DE (2) DE9409418U1 (en)
ES (1) ES2134372T3 (en)
HU (1) HU217246B (en)
PL (1) PL177304B1 (en)
RO (1) RO116104B1 (en)
RU (1) RU2143534C1 (en)
WO (1) WO1995034727A1 (en)

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DE19655284B4 (en) * 1996-08-16 2008-01-24 Peri Gmbh Dismountable facade scaffolding
GB2364344B (en) * 2001-04-28 2002-05-29 Lyndon Scaffolding Plc Scaffolding transom
US20100072717A1 (en) * 2008-05-06 2010-03-25 Graco Minnesota, Inc. Striper with adjustable handle
US8906021B1 (en) 2012-08-20 2014-12-09 Stryker Trauma Sa Telescopic strut for an external fixator
CN102900228B (en) * 2012-11-02 2015-09-16 福建翔银工贸有限公司 Engineering scaffold self-locking connection structure
FR3010433B1 (en) * 2013-09-09 2016-03-04 Cdh Group BODY FOR SCAFFOLDING AND ITS MOUNTING METHOD, AND SCAFFOLD EQUIPPED WITH SUCH A GARDE-BODY
FR3028541B1 (en) * 2014-11-14 2016-12-23 Cdh Group DEVICE FOR DETECTING SCALES OF SCAFFOLDING
CN107227841A (en) * 2017-05-25 2017-10-03 成都市容德建筑劳务有限公司 One kind strengthens fastening type scaffold
WO2022060888A1 (en) * 2020-09-16 2022-03-24 Perfect Site LLC Utility rack
DE202020106155U1 (en) 2020-10-28 2022-02-01 Krause Werk Gmbh & Co Kg Scaffolding and railings for a scaffolding

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US2308831A (en) * 1941-04-01 1943-01-19 John F Roney Structural member
CH384189A (en) * 1961-09-22 1964-11-15 Pedroli Dante Metal tubular structure, particularly for scaffolding for painters, masons, etc.
FR1399674A (en) * 1964-04-08 1965-05-21 Scaffolding fixing device
FR2072877A5 (en) * 1970-11-27 1971-09-24 Chapiron Andre
GB1250607A (en) * 1967-11-25 1971-10-20
GB2133453A (en) * 1983-01-15 1984-07-25 Thomas Ltd Martin Scaffolding connection

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Publication number Priority date Publication date Assignee Title
US2308831A (en) * 1941-04-01 1943-01-19 John F Roney Structural member
CH384189A (en) * 1961-09-22 1964-11-15 Pedroli Dante Metal tubular structure, particularly for scaffolding for painters, masons, etc.
FR1399674A (en) * 1964-04-08 1965-05-21 Scaffolding fixing device
GB1250607A (en) * 1967-11-25 1971-10-20
FR2072877A5 (en) * 1970-11-27 1971-09-24 Chapiron Andre
GB2133453A (en) * 1983-01-15 1984-07-25 Thomas Ltd Martin Scaffolding connection

Also Published As

Publication number Publication date
HU217246B (en) 1999-12-28
US5823292A (en) 1998-10-20
CA2192482A1 (en) 1995-12-21
RU2143534C1 (en) 1999-12-27
DE59506569D1 (en) 1999-09-16
CZ330396A3 (en) 1997-03-12
WO1995034727A1 (en) 1995-12-21
DE9409418U1 (en) 1995-01-19
RO116104B1 (en) 2000-10-30
EP0686741B1 (en) 1999-08-11
ES2134372T3 (en) 1999-10-01
HU9603380D0 (en) 1997-02-28
PL317488A1 (en) 1997-04-14
ATE183276T1 (en) 1999-08-15
HUT76566A (en) 1997-09-29
CN1150465A (en) 1997-05-21
PL177304B1 (en) 1999-10-29

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