EP0686741B1 - Clamping connector for assembling a scaffold with prefabricated bar-sections - Google Patents

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

Info

Publication number
EP0686741B1
EP0686741B1 EP95104789A EP95104789A EP0686741B1 EP 0686741 B1 EP0686741 B1 EP 0686741B1 EP 95104789 A EP95104789 A EP 95104789A EP 95104789 A EP95104789 A EP 95104789A EP 0686741 B1 EP0686741 B1 EP 0686741B1
Authority
EP
European Patent Office
Prior art keywords
clamping
profiled
members
recess
connexion
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
EP95104789A
Other languages
German (de)
French (fr)
Other versions
EP0686741A1 (en
Inventor
Günther Krause
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.)
Krause Werk GmbH and Co KG
Original Assignee
Krause Werk GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Krause Werk GmbH and Co KG filed Critical Krause Werk GmbH and Co KG
Publication of EP0686741A1 publication Critical patent/EP0686741A1/en
Application granted granted Critical
Publication of EP0686741B1 publication Critical patent/EP0686741B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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 according to the preamble of claim 1.
  • a clamp connection is for example known for attaching crossbars to spars, in which a clamping part is screwed onto the pipe end a U-shaped recess for receiving the to be fastened Has tube.
  • the recess as such is through a slidable and adjustable in length plate lockable.
  • GB-A-1 250 607 describes a corresponding clamp connection, two spaced apart Screwed plates at the end of a crossbar, for example or welded on.
  • the one provided in these plates Slot for receiving a scaffold frame element can be closed with a wedge.
  • Clamp connections of this type are particularly useful in scaffolding required to a large extent to the frame elements, deck platforms, Posts, struts and similar components Connect and disconnect safely and quickly to be able to, especially with prefabricated components existing scaffolding.
  • connection point for the clamp connection is relatively arbitrary is and only ensures its secure attachment must be the crossbars and console pieces with one always the same, adapted to the clamp connection Cross section executed.
  • the invention has set itself the task of such To design clamp connections so that they consist of a few components persist, are cheap to manufacture and highly stressed, load-bearing welds can be dispensed with.
  • the form-fitting connection of the respective component on a crossbar or A console piece is the one with low operating force executable frictional locking of the Clamping piece in the predetermined by the positive connection Position secured so that a secure clamp connection is achievable.
  • the one resting on the crossbar or the console piece Area of the wall of the recess is best shaped so that he is on the crossbar or the console piece touches approximately flat, because then the surface pressure is small and deformations are excluded can be.
  • a locking device is provided is, with the help of the clamping piece in at least one Closed and an open position with respect to the Recess is noticeable. With appropriate training the locking device are also any intermediate positions possible.
  • the clamping piece can be designed in such a way that it is parallel to the associated profile bar Profile piece is formed; the clamping piece is advantageous in the direction of its longitudinal axis on a as Provide a suitable slot with a slot on the clamping surface, that of a bolt that can be screwed onto the profile rod Locking device is enforced.
  • the clamping piece is stationary on the profile piece and captively axially movable as well as in one any position fixable.
  • the clamp connection is particularly handy if the Bolt is designed as a threaded bolt and the clamping piece using a handle nut on the bolt is clampable; it is understood that other controls are also conceivable, such as a toggle lever operation.
  • the parallelism be guaranteed by the clamping piece and profile rod, for example, by between the web and the profile bar a spacer is provided, such as one on the Clamp or nut attached to the profile bar thereby simultaneously extending the nut thread serves for the threaded bolt.
  • Console piece clampable pressure surface of the clamping piece follows the cross-sectional shape of the crossbar so that together with the wall of the recess the clamped Cross section all around and the danger of one Is subject to deformation.
  • a particularly good storage of the clamping piece is achieved one if the profile bar as a rectangular hollow profile and the clamping piece is designed as a U-profile and the Straps of the U-profile on the side walls of the profile bar issue.
  • a covering platform a mostly diagonal longitudinal or Cross bracing, a longitudinal or transverse railing or intermediate rail of the railing or another Similar component with a cross bar or be connected to a bracket on a stand.
  • these components have the same cross section in their profile bars is sufficient for all clamp connections a single version of the used few components and the recess on the profile bars.
  • FIG here A typical scaffolding is shown in FIG here is provided with a chassis. It consists of some recurring with such scaffolding Components. Lateral, multi-part frame elements 1 consist of vertical stands 11 and horizontal, the crossbars 12 connecting the uprights 12 which can also be used here as ladder rungs and in welded to the stands 11 in a correspondingly narrow division are. They are therefore well suited for connection of the frame element 1 with the other components of the scaffolding. On the stands 11 can short Console pieces may be provided, especially when connections of other components required in places where a crossbar 12 is not available, for example if cross braces are connected Need to become. The following, generally on crossbars 12 related statements also apply in the same sense for such, not taken into account in the drawing Console pieces.
  • Rubber platforms 2 attached of which the upper rubber platform 2a has a passage 21 which has a flap 22 (Fig. 7) can be closed, and of transverse and longitudinal rims 23 and 24 is limited.
  • longitudinal struts 41 of a cross bracing, if necessary Bracing 4 provided together with the Covering platforms 2 give the scaffolding the necessary rigidity.
  • the crossbars 12 are expedient as the stand 11 from circular cylindrical tubes; other profiles are but conceivable and can to the clamp connection according to the invention can also be easily connected, which is then to be designed slightly differently.
  • all other components are made of profile bars P composed of a cross section of a rectangular hollow profile, such as in particular 4 and 5 can be read.
  • profile bars too P can instead use a differently shaped one Cross section; however, this points independently of the respective component, advantageously the same dimensions so that uniform sized Clamp connections are possible and only a few different ones Components are needed.
  • the area of a clamp connection according to the invention is 8 and 9 can be seen in detail.
  • the profile bar P is closed (on both sides) with a stopper S.
  • a recess PA is in one End area PF of the profile bar P and follows with a 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 in its upper region PA1 the profile 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 bottom PU of the profile rod P and is dimensioned so that the profile rod P with only slight play in the direction its longitudinal axis PL rests on the crossbar 12.
  • Insertion bevels PE make it easier to overlay the Crossbar 12.
  • a bolt 51 of a locking device 5 is on the Profile rod P with a thread 51a stationary, but screwable provided; a welded to the profile rod P.
  • Spacer PD extends the nut thread of the thread 51a and ensures that a clamping piece 6th there is such a distance from the profile bar P, that it is roughly parallel when the associated one Crossbar 12 placed in the recess PA and from that Clamping piece 6 is overlaid.
  • One fixed to the bolt 51 Handle 52 makes operation easier.
  • the clamping piece 6 is designed as a U-profile, the Belts 61 on the side walls PS of the associated profile bar P, including this with easy play, while the connecting web 62 on the spacer PD strikes.
  • the web 62 is in the direction of Longitudinal axis 64 of the clamping piece 6 an elongated hole 62a (Fig. 5) broken through, which is penetrated by the bolt 51 is and the clamping piece 6 limited longitudinally makes.
  • the arrangement is such that (in Fig. 8) the clamping piece 6 can be moved to the right is that the slot PA2 is no longer covered.
  • the 8 corresponds to the position of the clamping piece 6 shown the final in the assembled state of the Fig. 4.
  • the clamping piece 6 then loads the cross bar 12 a pressure surface 63 in the two belts 61, the Shape adapted to the cross section of the cross bar 12 so is that a flat system is guaranteed and the Surface pressure is bearable.

Landscapes

  • 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 nach dem Oberbegriff des Anspruches 1.The invention relates to a clamp connection according to the preamble of claim 1.

Aus der US-A-2 308 831 ist eine Klemmverbindung beispielsweise für die Befestigung von Querstegen an Holmen bekannt, bei der am Rohrende ein Klemmteil angeschraubt ist, das eine U-förmige Ausnehmung für die Aufnahme des zu befestigenden Rohres aufweist. Die Ausnehmung als solche ist durch eine verschiebbare und in ihrer Länge einstellbare Platte verschließbar.From US-A-2 308 831 a clamp connection is for example known for attaching crossbars to spars, in which a clamping part is screwed onto the pipe end a U-shaped recess for receiving the to be fastened Has tube. The recess as such is through a slidable and adjustable in length plate lockable.

Die GB-A-1 250 607 beschreibt eine entsprechende Klemmverbindung, wobei hier zwei mit Abstand zueinander angeordnete Platten am Ende beispielsweise eines Quersteges angeschraubt oder angeschweißt sind. Der in diesen Platten vorgesehene Schlitz für die Aufnahme eines Gerüstrahmenelementes ist durch einen Keil verschließbar.GB-A-1 250 607 describes a corresponding clamp connection, two spaced apart Screwed plates at the end of a crossbar, for example or welded on. The one provided in these plates Slot for receiving a scaffold frame element can be closed with a wedge.

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 particularly useful in scaffolding required to a large extent to the frame elements, deck platforms, Posts, struts and similar components Connect and disconnect safely and quickly to be able to, especially with prefabricated components existing scaffolding.

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 the connection point for the clamp connection is relatively arbitrary is and only ensures its secure attachment must be the crossbars and console pieces with one always the same, adapted to the clamp connection Cross section executed.

Die Erfindung hat sich die Aufgabe gestellt, derartige Klemmverbindungen so zu gestalten, daß sie aus wenigen Bauteilen bestehen, billig herzustellen sind und auf hochbelastete, tragende Schweißnähte verzichtet werden kann.The invention has set itself the task of such To design clamp connections so that they consist of a few components persist, are cheap to manufacture and highly stressed, load-bearing welds can be dispensed with.

Erfindungsgemäß wird die Aufgabe mit den Merkmalen des Anspruches 1 gelöst. According to the invention the object with the features of the claim 1 solved.

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 comes with very few additional fasteners and without load-bearing Welded connections. The form-fitting connection of the respective component on a crossbar or A console piece is the one with low operating force executable frictional locking of the Clamping piece in the predetermined by the positive connection Position secured so that a secure clamp connection is achievable.

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 on each component two of the recesses provided on the profile bars can be closed with clamps; for example can therefore the recesses in the intermediate spars of a railing on the scaffolding unlocked if they stay with the railings this Railing form a fixed railing frame and already the railing spars with clamping connections according to the invention are equipped.

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 one resting on the crossbar or the console piece Area of the wall of the recess is best shaped so that he is on the crossbar or the console piece touches approximately flat, because then the surface pressure is small and deformations are excluded can be.

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 is, with the help of the clamping piece in at least one Closed and an open position with respect to the Recess is noticeable. With appropriate training the locking device are also any intermediate positions 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 designed in such a way that it is parallel to the associated profile bar Profile piece is formed; the clamping piece is advantageous in the direction of its longitudinal axis on a as Provide a suitable slot with a slot on the clamping surface, that of a bolt that can be screwed onto the profile rod Locking device is enforced. On this simple one The clamping piece is stationary on the profile piece and captively axially movable as well as in one any position fixable.

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 clamping piece using a handle nut on the bolt is clampable; it is understood that other controls are also conceivable, such as a toggle lever operation. In any case, the parallelism be guaranteed by the clamping piece and profile rod, for example, by between the web and the profile bar a spacer is provided, such as one on the Clamp or nut attached to the profile bar thereby simultaneously extending the nut thread serves 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 useful if one on the crossbar or that Console piece clampable pressure surface of the clamping piece follows the cross-sectional shape of the crossbar so that together with the wall of the recess the clamped Cross section all around and the danger of one Is subject to 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 as a rectangular hollow profile and the clamping piece is designed as a U-profile and the Straps of the U-profile on the side walls of the profile bar issue.

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 Cross bracing, a longitudinal or transverse railing or intermediate rail of the railing or another Similar component with a cross bar or be connected to a bracket on a stand. As far as these components have the same cross section in their profile bars is sufficient for all clamp connections a single version of the used few components and the recess on the profile bars.

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 shows a covering platform from FIG. 1, each drawn slightly rotated, all in 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 here is provided with a chassis. It consists of some recurring with such scaffolding Components. Lateral, multi-part frame elements 1 consist of vertical stands 11 and horizontal, the crossbars 12 connecting the uprights 12 which can also be used here as ladder rungs and in welded to the stands 11 in a correspondingly narrow division are. They are therefore well suited for connection of the frame element 1 with the other components of the scaffolding. On the stands 11 can short Console pieces may be provided, especially when connections of other components required in places where a crossbar 12 is not available, for example if cross braces are connected Need to become. The following, generally on crossbars 12 related statements also apply in the same sense for such, not taken into account in the drawing Console pieces.

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.So there are two horizontal on the frame elements 1 Rubber platforms 2 attached, of which the upper rubber platform 2a has a passage 21 which has a flap 22 (Fig. 7) can be closed, and of transverse and longitudinal rims 23 and 24 is limited. In addition, the covering platform 2a secured by a railing 3, the railing spars 31, intermediate bars 32 and connecting pieces 33 (Fig. 6); the lower platform 2b comes without a railing 3 out. After all, there are longitudinal struts 41 of a cross bracing, if necessary Bracing 4 provided 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 are expedient as the stand 11 from circular cylindrical tubes; other profiles are but conceivable and can to the clamp connection according to the invention can also be easily connected, which is then to be designed slightly differently. in the In contrast, all other components are made of profile bars P composed of a cross section of a rectangular hollow profile, such as in particular 4 and 5 can be read. These profile bars too P can instead use a differently shaped one Cross section; however, this points independently of the respective component, advantageously the same dimensions so that uniform sized Clamp connections are possible and only a few different ones Components are needed.

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 is 8 and 9 can be seen in detail. The profile bar P is closed (on both sides) with a stopper S. A recess PA is in one End area PF of the profile bar P and follows with a 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 in its upper region PA1 the profile 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 bottom PU of the profile rod P and is dimensioned so that the profile rod P with only slight play in the direction its longitudinal axis PL rests on the crossbar 12.

Einführungsschrägen PE erleichtern das Überfangen des Querriegels 12.Insertion bevels PE make it easier to overlay the Crossbar 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 on the Profile rod P with a thread 51a stationary, but screwable provided; a welded to the profile rod P. Spacer PD extends the nut thread of the thread 51a and ensures that a clamping piece 6th there is such a distance from the profile bar P, that it is roughly parallel when the associated one Crossbar 12 placed in the recess PA and from that Clamping piece 6 is overlaid. One fixed to the bolt 51 Handle 52 makes operation easier.

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-profile, the Belts 61 on the side walls PS of the associated profile bar P, including this with easy play, while the connecting web 62 on the spacer PD strikes. In the web 62 is in the direction of Longitudinal axis 64 of the clamping piece 6 an elongated hole 62a (Fig. 5) broken through, which is penetrated by the bolt 51 is and the clamping piece 6 limited longitudinally makes. The arrangement is such that (in Fig. 8) the clamping piece 6 can be moved to the right is that the slot PA2 is no longer covered. The 8 corresponds to the position of the clamping piece 6 shown the final in the assembled state of the 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 a pressure surface 63 in the two belts 61, the Shape adapted to the cross section of the cross bar 12 so is that a flat system is guaranteed 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)

  1. A clamping connexion of pre-fabricated structural elements comprising profiled members (P) and transverse bars (12) or bracket members for assembly to form a scaffolding frame, wherein
    (a) a recess (PA) is provided which covers the transverse bars (12) or the bracket members and the axis of symmetry (PQ) of which is orientated transversely to the longitudinal axis (PL) of the profiled members (P) and which is opened in each case with a slot (PA2) towards the underside (PU) of the associated profiled member (P), so that it can be passed over by the associated transverse bar (12) or the bracket member,
    (b) the recess (PA) is dimensioned in such a way that the profiled member (P) rests in an immovable manner on the transverse bar (12) or the bracket member in the direction of its longitudinal axis (PL),
    (c) displaceable and lockable clamping members (6) are provided at least partially parallel to the longitudinal axis (PL) of the respective profiled member (P) at the end regions (PF) of the profiled members (P), and in a closed position - covering the slot (PA2) of the respective recess (PA) - firmly clamp the transverse bar (12) or the bracket member in the said recess (PA) of the profiled member (P),
    characterized in that
    (d) the recesses (PA) are attached in the end regions (PF) of the profiled members (P).
  2. A clamping connexion according to Claim 1, characterized in that on each structural element (2, 3, 4) at least two of the recesses (PA) provided on the profiled members (P) can be closed by clamping members (6).
  3. A clamping connexion according to Claim 1, characterized in that the area (PA1) of the recess (PA) resting on the transverse bar (12) or the bracket member is formed in such a way that it rests on the transverse bar (12) or the bracket member in approximately planar contact.
  4. A clamping connexion according to one of Claims 1 to 3, characterized in that a fixing device (5) is provided, with the aid of which the clamping member (6) is fixable at least in one closed and one opened position with respect to the recess (PA).
  5. A clamping connexion according to one of Claims 1 to 4, characterized in that the clamping member (6) is constructed in the form of a profiled member parallel to the associated profiled member (P).
  6. A clamping connexion according to one of Claims 1 to 5, characterized in that the clamping member (6) is provided - in the direction of its longitidunal axis (64) on a web (62) which is suitable as a clamping face - with an elongate hole (62a) through which a bolt (51) of the fixing device (5) screwable on the profiled member (P) passes.
  7. A clamping connexion according to Claim 6, characterized in that the bolt (51) is constructed in the form of a threaded bolt and the clamping member (6) is clampable by means of a knurled nut (52) provided on the bolt (51).
  8. A clamping connexion according to Claim 6 or 7, characterized in that a spacer member (PD) is provided between the web (62) and the profiled member (P) in such a way that the clamping member (6) locked by means of the fixing device (5) is approximately parallel to the profiled member (P).
  9. A clamping connexion according to one of Claims 1 to 8, characterized in that a pressure face (63) of the clamping member (6) clampable against the transverse bar (12) or the bracket member follows the cross-sectional shape of the transverse bar (12).
  10. A clamping connexion according to one of Claims 1 to 9, characterized in that the profiled member (P) is constructed in the form of a rectangular hollow profile and the clamping member (6) in the form of a U-profile, and the flanges (61) of the U-profile rest against the lateral walls (PS) of the profiled member (P).
  11. Use of a clamping connexion according to one of Claims 1 to 10 for connecting a covering platform (2), a generally generally diagonal longitudinal or transverse bracing (4) of a longitudinally or transversely extending railing or intermediate cross-member (31, 32) of the railing (1), or another similar structural element to a transverse bar (12) or a bracket member 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 DE9409418U1 (en) 1994-06-10 1994-06-10 Clamp connection for assembling prefabricated profile bars into a scaffolding
DE9409418U 1994-06-10

Publications (2)

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

Family

ID=6909695

Family Applications (1)

Application Number Title Priority Date Filing Date
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)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19633092A1 (en) * 1996-08-16 1998-02-19 Peri Gmbh Removable 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
US11647833B2 (en) 2020-09-16 2023-05-16 Perfect Site LLC Utility rack
DE202020106155U1 (en) 2020-10-28 2022-02-01 Krause Werk Gmbh & Co Kg Scaffolding and railings for a scaffolding

Family Cites Families (8)

* Cited by examiner, † Cited by third party
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.
FR1362837A (en) * 1963-06-28 1964-06-05 Wilhelm Layher Spring connector for metal scaffolding
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
US4030612A (en) * 1976-06-03 1977-06-21 Robert Gray Pallet racks
GB2133453B (en) * 1983-01-15 1986-03-19 Thomas Ltd Martin Scaffolding connection

Also Published As

Publication number Publication date
RO116104B1 (en) 2000-10-30
CA2192482A1 (en) 1995-12-21
HU217246B (en) 1999-12-28
CZ330396A3 (en) 1997-03-12
ES2134372T3 (en) 1999-10-01
HU9603380D0 (en) 1997-02-28
PL177304B1 (en) 1999-10-29
PL317488A1 (en) 1997-04-14
EP0686741A1 (en) 1995-12-13
ATE183276T1 (en) 1999-08-15
HUT76566A (en) 1997-09-29
DE9409418U1 (en) 1995-01-19
WO1995034727A1 (en) 1995-12-21
RU2143534C1 (en) 1999-12-27
CN1150465A (en) 1997-05-21
US5823292A (en) 1998-10-20
DE59506569D1 (en) 1999-09-16

Similar Documents

Publication Publication Date Title
EP1983129B1 (en) Support for a space framework and connection device for a railing device and method for fixing a railing device to a support
WO2000009850A1 (en) Anti-slip device for ladders
EP0686741B1 (en) Clamping connector for assembling a scaffold with prefabricated bar-sections
DE3014212A1 (en) Mobile scaffolding and ladder components - are of size and shape permitting single handled erection, dismantling and adjustment
EP0045019B1 (en) Separable ladder, in particular shaft ladder
EP0390098B1 (en) kit for railings
DE4239805A1 (en)
DE19813857C1 (en) Support bracket for shuttering for concrete overhang profiles
EP1370736B2 (en) System of structural components for podiums/stages and/or stands and/or rostrums
EP0268197B1 (en) Scaffolding, in particular a building scaffolding
EP0686740B1 (en) Movable scaffold
AT403496B (en) WORKING PIT, IN PARTICULAR FOR MOTOR VEHICLE WORKSHOPS
DE3642846C2 (en)
EP0803019B1 (en) Connector for scaffolding assemblies
EP3524769A1 (en) Ladder with a traverse
DE912626C (en) Adjustable shuttering frame for concrete beams
CH514763A (en) Scaffolding plate, in particular scaffolding frame plate
DE3011641A1 (en) CROSSBAR FOR CONNECTING TWO ON A VEHICLE OR THE LIKE. ARRANGED HOLMEN OR THE LIKE
DE4406732C2 (en) Scaffolding, especially for construction
DE3040707C2 (en)
EP3983626A1 (en) Support post and modular quick-clamp railing
DE4311788A1 (en) Tread-surface and working-surface element
AT393530B (en) CONSOLE LADDER SCAFFOLDING
DE8204892U1 (en) MOVABLE PROTECTIVE TENT SCAFFOLDING
DE8010112U1 (en) CONSTRUCTION SCAFFOLDINGS, ESPECIALLY MOBILE SCAFFOLDINGS

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IT LI NL PT SE

17P Request for examination filed

Effective date: 19960529

17Q First examination report despatched

Effective date: 19980617

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO MILANO S.P.A.

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI NL PT SE

REF Corresponds to:

Ref document number: 183276

Country of ref document: AT

Date of ref document: 19990815

Kind code of ref document: T

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KRAUSE, GUENTHER

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: LUCHS & PARTNER PATENTANWAELTE

Ref country code: CH

Ref legal event code: EP

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19990816

REF Corresponds to:

Ref document number: 59506569

Country of ref document: DE

Date of ref document: 19990916

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2134372

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 19990826

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20000320

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20000327

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20000406

Year of fee payment: 6

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20010326

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20010328

Year of fee payment: 7

Ref country code: AT

Payment date: 20010328

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20010329

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010331

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010331

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010331

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20010331

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20010409

Year of fee payment: 7

BERE Be: lapsed

Owner name: KRAUSE-WERK G.M.B.H. & CO. K.G.

Effective date: 20010331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010930

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20010930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020331

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020401

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020401

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20020522

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021001

EUG Se: european patent has lapsed

Ref document number: 95104789.3

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20020331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021129

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20021001

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031001

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20030410

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050331