EP0317695A1 - Metal scaffolding for buildings - Google Patents
Metal scaffolding for buildings Download PDFInfo
- Publication number
- EP0317695A1 EP0317695A1 EP88101742A EP88101742A EP0317695A1 EP 0317695 A1 EP0317695 A1 EP 0317695A1 EP 88101742 A EP88101742 A EP 88101742A EP 88101742 A EP88101742 A EP 88101742A EP 0317695 A1 EP0317695 A1 EP 0317695A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wedge
- driving
- flank
- driving wedge
- coupling half
- 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
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
- E04G7/00—Connections between parts of the scaffold
- E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements
- E04G7/302—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members
- E04G7/306—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are fixed at several bars or members to connect
- E04G7/307—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are fixed at several bars or members to connect with tying means for connecting the bars or members
Definitions
- the invention relates to a metal stand scaffold for buildings, in particular a tubular scaffold according to the preamble of claim 1.
- Stand scaffolds of this type can be designed as so-called bar scaffolds.
- the invention relates to tubular rod structures, the elements of which predominantly consist of steel tubes. With these scaffolds, the standpipes are connected to the various bars, which also consist of pipe sections, via the coupling.
- the invention relates to modular stand scaffolding, which allow the scaffolding to be largely adapted to the respective building.
- the couplings are screwless. This makes assembly and disassembly of the scaffolding easier and faster. Nevertheless, the stand scaffold according to the invention is safe from accidents because its couplings can be assembled without error and only with the prescribed elements, but on the other hand can not be unexpectedly released under any circumstances.
- the invention is based on a previously known stand structure (EU-PS 0 116 679), the couplings of which implement a wedge gear.
- One on a standing element coupling half is designed as a flange ring and forms the slide of the wedge gear, while the other coupling half is provided with a hook to be hung on the flange ring, which ensures the positive connection.
- the gap for the driving wedge lies behind the hook, so that this coupling half forms the frame of the wedge gear.
- the driving in of the driving wedge leads to the interlocking parts being braced, the coupling half forming the frame in particular being elastically deformed.
- Such couplings are functional in stand scaffolding.
- the driving wedges can be easily driven and unscrewed from unsafe positions when assembling the scaffolding. They can be accommodated captively in the gap, which inevitably guarantees the functional condition of the couplings. They can also be carried out in a space-saving manner, so that the coupling halves are small and, among other things, assume a crucial weight for the usability of the standing scaffolding.
- the invention therefore relates to this principle Liche embodiment.
- the invention has for its object to provide a functional solution to the problem that has arisen by the loosening driving wedges for the safety of metal stand scaffolding of the type described.
- the driving wedge of each clutch is no longer directly applied with its wedge flank of the other coupling half. Rather, this happens with the interposition of the metal plate, which is braced with the wedge flank and with the inclined surface of the coupling half. Since the plate is attached to a coupling half, it cannot be dragged along by the driving wedge and can detach itself.
- the driving wedge tensions only with the gap and the lamella, so that the surfaces of the lamella described form additional friction surfaces which, with the wedge flanks, have the disadvantageous effects of Counteract movements of the coupling halves in the wake of vibrations.
- the driving wedge is therefore largely insensitive to vibrations, such as those that can occur, in particular, when the loads on bridges are shaken by heavy loads. Because of this, he can no longer suddenly lose his self-locking.
- This solution of the invention has the advantage that it frees the practical quick couplings, in particular of pipe stand scaffolds, of their previous uncertainties, without these couplings having to be changed in such a way that they can no longer be used.
- even existing couplings of various designs can be renovated by installing the lamella.
- new clutches are equipped with the invention from the outset.
- the lamella also serves to implement a wedge gear that works with several wedge flanks.
- This has the advantage that the tensioning of the coupling halves increases more strongly on the last section of the drive path, which prevents premature exhaustion of the wedge suit and increases or increases the friction. Wedge tightening forces are reduced.
- the lamella can also serve to hold the loosened driving wedge in the gap, for example to fix it in a form-fitting manner. This is ensured by the features of claim 3.
- the lamella clamps the loosened wedge onto its support and is tensioned even when the wedge is tightened.
- the previously unused sides of the driving wedge serve as wedge tightening surfaces, while the wedge flank of the driving wedge is assigned to the bottom of the keyway, but does not come into effect with it and therefore the driving wedge effect not adversely affected.
- the wedge tightening surfaces form a separating wedge which elastically deforms the coupling half provided with it via the driving wedge gap when it is driven into the keyway when driving with the wedge flank running on the inclined surface of the other coupling half.
- the invention therefore has the advantage that it avoids the previously occurring dangerous conditions with simple means, namely by a shape of the driving wedge which deviates from the known, and thus retains the basic advantages of the screwless driving wedge couplings.
- the invention is carried out so that the driving wedge attracts over the full length of the driving path, because the wedge surfaces of the separating wedge start directly on the back of the driving wedge and end at the driving wedge tip. This makes it possible to let the additional preload of the coupling halves with the separating wedge occur with the first hammer blow on the driving wedge back and the number of hammer blows to the end to keep the valid preload low.
- a standpipe (1) of a pipe stand frame (not shown) is connected to a frame latch (2) with the aid of a mechanical coupling.
- One half (4) of the coupling (3) consists of a ring which is attached to the standpipe (1).
- the ring forms a flange (5) which forms a conical surface (6) which is inclined upwards in the direction of the standing tube (1) and an oppositely inclined lower conical surface which is designated by (7) and as a bearing surface for a wedge gear (8).
- It serves to connect the coupling half (4), which is fixed to the standing tube (1) and is formed by the described ring (4), with the other coupling half (9) so as to be vibration-proof.
- the coupling half (9) consists of a molded part, for example, which has a hollow cylindrical section (10) with which the bolt (2) consisting of a tube ver is welded.
- a driving wedge (12) In the front part of section (10) there is a gap (11) for a driving wedge (12).
- the driving wedge is shown in Fig. 1 in its rest position. He takes this when the driving wedge is in its upper end position. Then the wedge surface (13) of the driving wedge (12) is supported on the lower end of the bottom (14) of the gap (11) with a recess (15) on a shoulder (16) of the bottom.
- a semicircular thickening (17) which attaches to the driving wedge tip, prevents the driving wedge from being released from the guide slot (11) when the parts assume the position shown in FIG. 2.
- the gap has an upper inlet opening (18) and a lower outlet opening (19).
- the roof surface (20) of the gap opposite the floor (14) is formed in a shaft of a hook (21), the hook mouth of which opens downwards.
- the back of the hook sits between two elevations (22), which ensure a recessed arrangement and keep mechanical stresses away from the hook.
- a recess (23) is formed in the hook shaft as a seat for a lamella (24), or the like with its upper angled end (25) in the bottom of the recess (23) with a screw (26). is attached.
- the lamella is a thin section of spring steel the width of the back of the wedge (27) on which it slides when the wedge is driven. It protrudes downwards and outwards through the inlet opening (18) of the gap (11) and through its outlet opening (19). Its end, as shown at (28), thickens to form a wedge surface (29).
- the hook (21) is hung from above onto the ring flange (6).
- the wedge (12) is pivoted from its rest position shown in FIG. 1 into the starting position for bracing the coupling halves and driven from top to bottom with hammer blows (FIG. 2).
- the flank (27) of the driving wedge (12) which moves from top to bottom, slides on the fixed metal plate (24).
- the propelling force of the wedge (12) increases, whereby the lamella and the wedge widen surface (32) opposite flank (29) of the inclined surface (7).
- the hammer blows cause the wedge back (27) to be braced with the lamella (24) and the lamella (24) with the bearing surface (7).
- the wedge mechanism implemented in the device (8) is released by hammer blows on the part (17) of the driving wedge (12). As a result, the back of the wedge (27) is released from the lamella (24), which springs back and finally fixes the driving wedge in its starting position.
- the use of conical surfaces, as shown in (6 and 7) for the coupling half (4), is not a requirement.
- the lamella consists of spring steel and therefore returns to its starting position after pulling out the driving wedge (12), the projection (16) again engaging in the recess (14) of the driving wedge (12) according to FIG. This makes it possible to unhook the hook (22) of the coupling half (9) from the flange (5) without restriction.
- a central section (34) lies between the cranked, upper end (33) of the spring steel plate and the lower thickened plate end (28). This is delimited by the curved surfaces (35, 36) which lie opposite the wedge back (27) or the roof surface (20) of the guide slot (18). The surface (35) engages the driving wedge (12) as described above.
- the wedge guide on the lower extension (16) of the coupling half (9) is extended by the extension (16) projecting over the lower edge (37) of the opening (19).
- the wedge forces are concentrated on the thickening (28) and thus on the bearing surface (29).
- the embodiment according to FIG. 3 differs from the embodiment according to FIGS. 1 and 2 by a shortened lamella length, that is to say restricted to the thickening (28).
- the lamella (24) has a self-aligning bearing (38) with which it can swing in the guide slot (11) in the plane of the driving wedge (12).
- the pin (39) of the self-aligning bearing sits in the apex of the triangular plan of the lamella (24).
- the crown is from the with the bearing surface (7) cooperating wedge surface (29) and the opposite surface (32) of the driving wedge (12).
- the driving wedge of the wedge gear is in turn supported on the annular inclined surface (7) of the flange ring (5) fixed to the frame when the wedge is tightened.
- the opposite driving wedge flank (3) is no longer supported and is also no longer used to tighten the wedge for tightening the clutch.
- the two side surfaces (40, 41) of the driving wedge (12) form the flanks of a separating wedge and its wedge surfaces. Their levels converge behind its wedge flank (13).
- a keyway (43) is formed for the separating wedge in the gap (11), the friction surfaces (44, 45) of which converge outside the gap, ie on the side facing away from the hook (5). 5 that the inner cylinder (10) interrupts the groove bottom (46) in the gap (11) at (47).
- the wedge surfaces (40, 41) begin at the edges of the back (46) of the driving wedge (12). Therefore, the separating wedge is tightened simultaneously with the wedge gear. This is also ensured by the parallel wedge surface sides (48, 49 which lie at the wedge tip (15). These are assigned the wedge groove side surfaces (45, 46) above the wedge groove bottom section (50).
- the driving wedge (12) is driven by hammer blows on the wedge back (51), its tightening surface (13) being above the bottoms (50, 52) of the keyway in the gap (11).
- the driving wedge is loosened, the separating wedge surfaces (40 and 41) are detached from the groove side surfaces (44 and 45) of the keyway.
- the wedge is driven, it also moves towards the bottom of the groove, whereby the separating wedge is tightened.
- the wedge back (54), the wedge flank (13) and the wedge surfaces (40, 41) form the edges of a trapezoidal profile which has inclined edges which run symmetrically to a central perpendicular (45).
- the outer inclined surface (6) and the opposite inclined surface (57) bear against the surfaces (58, 59) of the inside conical hook jaw (60) assigned to them.
- the coupling half (9) is preferably elastically deformed and in this way brings about the bracing with the other coupling half (4).
- the end (55) which is to be attached to the driving wedge tip (15) is to be penetrated with a double-head rivet (56).
- the end (55) therefore consists of a flat profile.
- the two rivet heads serve to prevent the driving wedge (12) from being driven upwards.
- an upper wedge lock which prevents the driving wedge from being driven downward out of the gap (11), is not required. If it is provided, it can consist of a thickening of the driving wedge (12) over time.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Clamps And Clips (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
Die Erfindung betrifft ein Metallstandgerüst für Bauwerke, insbesondere ein Rohrgerüst gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to a metal stand scaffold for buildings, in particular a tubular scaffold according to the preamble of
Solche Standgerüste können als sogenannte Stangengerüste ausgeführt sein. Insbesondere bezieht sich die Erfindung jedoch auf Rohrstangengerüste, deren Elemente überwiegend aus Stahlrohren bestehen. Bei diesen Gerüsten werden die Stehrohre mit den verschiedenen, ebenfalls aus Rohrabschnitten bestehenden Riegeln über die Kupplung verbunden. Insbesondere bezieht sich die Erfindung auf Modulstandgerüste, die eine weitgehende Anpassung des Gerüstes an das jeweilige Bauwerk gestatten.Stand scaffolds of this type can be designed as so-called bar scaffolds. In particular, however, the invention relates to tubular rod structures, the elements of which predominantly consist of steel tubes. With these scaffolds, the standpipes are connected to the various bars, which also consist of pipe sections, via the coupling. In particular, the invention relates to modular stand scaffolding, which allow the scaffolding to be largely adapted to the respective building.
In diesen und anderen Standgerüsten gemäß der Erfindung sind die Kupplungen schraubenlos. Dadurch wird die Montage und Demontage des Gerüstes erleichtert und beschleunigt. Dennoch ist das erfindungsgemäße Standgerüst unfallsicher, weil seine Kupplungen irrtumsfrei und nur mit den vorgeschriebenen Elementen zusammengefügt werden können, sich aber andererseits unter keinen Umständen unvermutet lösen.In these and other stand structures according to the invention, the couplings are screwless. This makes assembly and disassembly of the scaffolding easier and faster. Nevertheless, the stand scaffold according to the invention is safe from accidents because its couplings can be assembled without error and only with the prescribed elements, but on the other hand can not be unexpectedly released under any circumstances.
Hierbei geht die Erfindung von einem vorbekannten Standgerüst aus (EU-PS 0 116 679), dessen Kupplungen ein Keilgetriebe verwirklichen. Die eine an einem Stehelement angebrachte Kupplungshälfte ist als Flanschring ausgeführt und bildet den Schieber des Keilgetriebes, während die andere Kupplungshälfte mit einem auf den Flanschring zu hängenden Haken versehen ist, der den Formschluß gewährleistet. Hinter dem Haken liegt der Spalt für den Treibkeil, so daß diese Kupplungshälfte das Gestell des Keilgetriebes bildet. Das Eintreiben des Treibkeiles führt zur Verspannung der formschlüssigen Teile, wobei vor allem die das Gestell bildende Kupplungshälfte elastisch verformt wird.The invention is based on a previously known stand structure (EU-PS 0 116 679), the couplings of which implement a wedge gear. One on a standing element coupling half is designed as a flange ring and forms the slide of the wedge gear, while the other coupling half is provided with a hook to be hung on the flange ring, which ensures the positive connection. The gap for the driving wedge lies behind the hook, so that this coupling half forms the frame of the wedge gear. The driving in of the driving wedge leads to the interlocking parts being braced, the coupling half forming the frame in particular being elastically deformed.
Solche Kupplungen sind in Standgerüsten funktionsgerecht. Die Treibkeile lassen sich mit Hammerschlägen auch von unsicheren Standplätzen aus bei der Montage des Gerüstes leicht antreiben und wieder lösen. Sie können unverlierbar im Spalt untergebracht werden, wodurch der funktionsgerechte Zustand der Kupplungen zwangsläufig gewährleistet ist. Sie lassen sich auch raumsparend ausführen, so daß die Kupplungshälften klein bauen und u.a. für die Verwendbarkeit der Stehgerüste ein mitentscheidendes geringes Gewicht annehmen. Die Erfindung bezieht sich daher auf diese grundsätz liche Ausführungsform.Such couplings are functional in stand scaffolding. The driving wedges can be easily driven and unscrewed from unsafe positions when assembling the scaffolding. They can be accommodated captively in the gap, which inevitably guarantees the functional condition of the couplings. They can also be carried out in a space-saving manner, so that the coupling halves are small and, among other things, assume a crucial weight for the usability of the standing scaffolding. The invention therefore relates to this principle Liche embodiment.
Da bei dem vorbekannten Metallstandgerüst die beschriebenen Kupplungshälften nur einen Freiheitsgrad aufweisen, ist ihr Treibkeil nur mit seiner Keilflanke im Spalt geführt; sie dient als Anzugsfläche des Getriebes. Der Treibkeil führt sich außerdem nur noch mit seiner gegenüberliegenden geraden Flanke auf der Schrägfläche des Flanschringes. Ein solcher Treibkeil muß einen Keilwinkel aufweisen, der die Selbsthemmung gewährleistet. Daraus ergibt sich ein schlanker Flachkeil, dessen Keilwinkel jedoch nicht beliebig klein gemacht werden kann, weil der Anzugsweg des Keiles aus Funktionsgründen begrenzt werden muß. In der Praxis führt das dazu, daß sich die Treibkeile bei Erschütterung des Gerüstes lockern oder sogar herausspringen können. Die Beanspruchung der Kupplungen des Gerüstes nehmen beträchtliche Größenordnungen an, wenn in der Umgebung des Gerüstes schwellende Beanspruchungen auftreten, wie sie z.B. durch den Schwerlastverkehr in Brückenbauwerken und im Baugrund ausgelöst werden. Nehmen die Trennkräfte der Kupplungshälften nennenswerte Größenordnungen an, so führt das bei gelockerten oder herausgesprungenen Treibkeilen zum Freiwerden der Kupplungen und damit von u.U. lebenswichtigen Gerüstteilen, so daß die Sicherheit nicht mehr gewährleistet ist.Since the coupling halves described have only one degree of freedom in the known metal stand structure, their driving wedge is guided in the gap only with its wedge flank; it serves as the gear's tightening surface. The driving wedge also only runs with its opposite straight flank on the inclined surface of the flange ring. Such a driving wedge must have a wedge angle that ensures self-locking. This results in a slender flat wedge, the wedge angle of which cannot be made arbitrarily small, however, because the wedge's travel must be limited for functional reasons. In practice, this means that the driving wedges can loosen or even jump out when the scaffolding is shaken. The loads on the couplings of the scaffolding take on considerable magnitudes if there are swelling stresses in the vicinity of the scaffold, such as those caused by heavy goods traffic in bridge structures and in the ground. If the separating forces of the coupling halves assume significant orders of magnitude, this will lead to the couplings becoming free when the driving wedges are loosened or jumped out and thus possibly essential scaffolding parts, so that safety is no longer guaranteed.
Der Erfindung liegt die Aufgabe zugrunde, eine funktionsgerechte Lösung des Problems anzugeben, das durch die sich lockernden Treibkeile für die Sicherheit von Metallstandgerüsten der beschriebenen Art entstanden ist.The invention has for its object to provide a functional solution to the problem that has arisen by the loosening driving wedges for the safety of metal stand scaffolding of the type described.
Eine erste Lösung dieser Aufgabe erfolgt erfindungsgemäß mit den Merkmalen des Patentanspruches 1. Zweckmäßige Ausführungsformen dieser Lösung sind Gegenstand der Unteransprüche 2 bis 5.A first solution to this problem is achieved according to the invention with the features of
Hierbei wird gemäß der Erfindung der Treibkeil jeder Kupplung nicht mehr unmittelbar mit seiner Keilflanke der anderen Kupplungshälfte angelegt. Das geschieht vielmehr unter Zwischenschaltung der Metallamelle, die mit der Keilflanke und mit der Schrägfläche der Kupplungshälfte verspannt wird. Da die Lamelle an einer Kupplungshälfte festgelegt ist, kann sie von dem Treibkeil nicht mitgeschleppt werden und sich selbständig lösen. Andererseits verspannt sich der Treibkeil nur mit dem Spalt und der Lamelle, so daß die beschriebenen Flächen der Lamelle zusätzliche Reibungsflächen bilden, die mit den Keilflanken den nachteiligen Auswirkungen von Bewegungen der Kuplungshälften im Gefolge von Erschütterungen entgegenwirken. Der Treibkeil ist daher gegen Schwingungen, wie sie insbesondere bei rüttelnden Beanspruchungen durch den Schwerlastverkehr an Brücken auftreten können, weitgehend unempfindlich. Er kann deswegen seine Selbsthemmung auch nicht mehr unvermutet verlieren.Here, according to the invention, the driving wedge of each clutch is no longer directly applied with its wedge flank of the other coupling half. Rather, this happens with the interposition of the metal plate, which is braced with the wedge flank and with the inclined surface of the coupling half. Since the plate is attached to a coupling half, it cannot be dragged along by the driving wedge and can detach itself. On the other hand, the driving wedge tensions only with the gap and the lamella, so that the surfaces of the lamella described form additional friction surfaces which, with the wedge flanks, have the disadvantageous effects of Counteract movements of the coupling halves in the wake of vibrations. The driving wedge is therefore largely insensitive to vibrations, such as those that can occur, in particular, when the loads on bridges are shaken by heavy loads. Because of this, he can no longer suddenly lose his self-locking.
Diese Lösung der Erfindung hat den Vorteil, daß sie die praktischen Schnellkupplungen insbesondere von Rohrstandgerüsten von ihren bisherigen Unsicherheiten befreit, ohne daß diese Kupplungen derart verändert werden müssen, daß sie nicht weiter verwendbar sind. Tatsächlich können sogar vorhandene Kupplungen der verschiedensten Bauformen durch den Einbau der Lamelle saniert werden. Insbesondere werden aber neue Kupplungen von vornherein mit der Erfindung ausgerüstet.This solution of the invention has the advantage that it frees the practical quick couplings, in particular of pipe stand scaffolds, of their previous uncertainties, without these couplings having to be changed in such a way that they can no longer be used. In fact, even existing couplings of various designs can be renovated by installing the lamella. In particular, however, new clutches are equipped with the invention from the outset.
Vorzugsweise und mit den Merkmalen des Patentanspruches 2 dient die Lamelle außerdem zur Verwirklichung eines mit mehreren Keilflanken arbeitenden Keilgetriebe. Das hat den Vorteil, daß hierbei die Verspannung der Kupplungshälften auf dem letzten Abschnitt des Treibweges stärker anwächst, wodurch eine vorzeitige Erschöpfung des Keilanzuges verhindert und die Reibung erhöht bzw. Keilanzugskräfte vermindert werden.Preferably and with the features of claim 2, the lamella also serves to implement a wedge gear that works with several wedge flanks. This has the advantage that the tensioning of the coupling halves increases more strongly on the last section of the drive path, which prevents premature exhaustion of the wedge suit and increases or increases the friction. Wedge tightening forces are reduced.
Die Lamelle kann außerdem dazu dienen, den gelockerten Treibkeil im Spalt festzuhalten, beispielsweise formschlüssig festzulegen. Das gewährleisten die Merkmale des Patentanspruches 3. Die Lamelle spannt den gelockerten Keil auf seine Abstützung und wird selbst bei angezogenem Keil gespannt.The lamella can also serve to hold the loosened driving wedge in the gap, for example to fix it in a form-fitting manner. This is ensured by the features of claim 3. The lamella clamps the loosened wedge onto its support and is tensioned even when the wedge is tightened.
Zweckmäßig wird die Lamelle auch gegen gewaltsame Einwirkungen von außen geschützt. Dazu dienen die Merkmale der Patentansprüche 4 und 5, weil hierbei die Befestigung der Lamelle und ihre dazu dienenden Abschnitte versenkt in der betreffenden Kupplungshälfte untergebracht sind.The slat is also expediently protected against violent external influences. For this purpose, the features of
Eine zweite Lösung der gestellten Aufgabe bietet die Erfindung mit den Merkmalen des Patentanspruches 6. Zweckmäßige Ausführungsformen dieser Lösung sind Gegenstand der Unteransprüche 7 bis 9.The invention offers a second solution to the stated problem with the features of patent claim 6. Expedient embodiments of this solution are the subject of
Gemäß der Erfindung dienen die bislang ungenutzten Seiten des Treibkeiles als Keilanzugsflächen, während die Keilflanke des Treibkeiles dem Grund der Keilnut zugeordnet ist, mit diesem aber nicht zur Wirkung kommt und daher die Treibkeilwirkung nicht nachteilig beeinflußt. Die Keilanzugsflächen bilden einen Trennkeil, welcher über den Treibkeilspalt die mit diesem versehene Kupplungshälfte elastisch verformt, wenn er beim Treiben mit der auf der Schrägfläche der anderen Kupplungshälfte laufenden Keilflanke in die Keilnut eingetrieben wird. Dadurch können selbst erhebliche Erschütterungen des Keilgetriebes den Treibkeil nicht mehr unvermutet lockern.According to the invention, the previously unused sides of the driving wedge serve as wedge tightening surfaces, while the wedge flank of the driving wedge is assigned to the bottom of the keyway, but does not come into effect with it and therefore the driving wedge effect not adversely affected. The wedge tightening surfaces form a separating wedge which elastically deforms the coupling half provided with it via the driving wedge gap when it is driven into the keyway when driving with the wedge flank running on the inclined surface of the other coupling half. As a result, even considerable vibrations of the wedge gear can no longer unexpectedly loosen the driving wedge.
Die Erfindung hat daher den Vorteil, daß sie mit einfachen Mitteln, nämlich durch eine von dem Bekannten abweichende Formgebung des Treibkeiles die bislang auftretenden Gefahrenzustände vermeidet und damit die grundsätzlichen Vorteile der schraubenlosen Treibkeilkupplungen beibehält.The invention therefore has the advantage that it avoids the previously occurring dangerous conditions with simple means, namely by a shape of the driving wedge which deviates from the known, and thus retains the basic advantages of the screwless driving wedge couplings.
Vorzugsweise und mit den Merkmalen des Patentanspruches 7 wird die Erfindung so ausgeführt, daß der Treibkeil über die volle Länge des Treibweges anzieht, weil die Keilflächen des Trennkeiles unmittelbar am Rücken des Treibkeiles ansetzen und an der Treibkeilspitze enden. Dadurch ist es möglich, schon mit dem ersten Hammerschlag auf den Treibkeilrücken die zusätzliche Vorspannung der Kupplungshälften mit dem Trennkeil eintreten zu lassen und die Zahl der Hammerschläge bis zur end gültigen Vorspannung gering zu halten.Preferably and with the features of
Es ist ferner möglich, die Abmessungen des Treibkeiles und damit auch die Größe des Spaltes gering zu halten, ohne daß die Wirkung vermindert und die Vorspannung verringert werden. Das gelingt mit den Merkmalen des Patentanspruches 8.It is also possible to keep the dimensions of the driving wedge and thus also the size of the gap small without reducing the effect and reducing the pretension. This is achieved with the features of claim 8.
Die Erfindung wird im folgenden anhand beispielsweiser Ausführungen ihrer beiden Lösungsgedanken näher erläutert, die in den Zeichnungen wiedergegeben sind. Diese zeigen im Längsschnitt die beiden Kupplungshälften an einem Rohrstandgerüst mit den abgebrochen wiedergegebenen, gekuppelten Rohren und zwar in
- Fig. 1 eine erste Ausführungsform des zuerst beschriebenen Lösungsgedankens der Erfindung vor dem Antreiben des Treibkeiles,
- Fig. 2 den Gegenstand der Fig. 2 mit verspanntem Treibkeil,
- Fig. 3 eine demgegenüber abgeänderte Ausüfhrung in der Fig. 2 entsprechender Darstellung,
- Fig. 4 teilweise im Schnitt und in Seitenansicht sowie in abgebrochener Darstellung ein Metallstandgerüst gemäß dem zweiten Lösungsgedanken der Erfindung und
- Fig. 5 eine Teildraufsicht auf den Gegenstand der Fig. 1.
- 1 shows a first embodiment of the first solution of the invention described before driving the driving wedge,
- 2 shows the subject of FIG. 2 with a tensioned driving wedge,
- 3 shows a modified version in comparison with FIG. 2,
- Fig. 4 partially in section and in side view and in a broken view a metal stand according to the second solution of the invention and
- 5 is a partial top view of the subject of FIG. 1.
Ein Stehrohr (1) eines im übrigen nicht dargestellten Rohrstandgerüstes ist mit einem Gerüstriegel (2) mit Hilfe einer mechanischen Kupplung verbunden. Eine Hälfte (4) der Kupplung (3) besteht aus einem Ring, der an dem Stehrohr (1) befestigt ist. Der Ring bildet einen Flansch (5), der eine nach oben in Richtung auf das Stehrohr (1) geneigte Kegelfläche (6) und eine entgegengesetzt geneigte untere Kegelfläche bildet, die mit (7) bezeichnet ist und als Lagerfläche für ein Keilgetriebe (8) dient. Es dient dazu, die an dem Stehrohr (1) feste und von dem beschriebenen Ring (4) gebildete Kupplungshälfte (4) mit der anderen Kupplungshälfte (9) rüttelfest zu verbinden.A standpipe (1) of a pipe stand frame (not shown) is connected to a frame latch (2) with the aid of a mechanical coupling. One half (4) of the coupling (3) consists of a ring which is attached to the standpipe (1). The ring forms a flange (5) which forms a conical surface (6) which is inclined upwards in the direction of the standing tube (1) and an oppositely inclined lower conical surface which is designated by (7) and as a bearing surface for a wedge gear (8). serves. It serves to connect the coupling half (4), which is fixed to the standing tube (1) and is formed by the described ring (4), with the other coupling half (9) so as to be vibration-proof.
Die Kupplungshälfte (9) besteht aus einem beispielsweise gegossenen Formstück, das einen hohlzylindrischen Abschnitt (10) aufweist, mit dem der aus einem Rohr bestehende Riegel (2) ver schweißt ist. Im vorderen Teil des Abschnittes (10) befindet sich ein Spalt (11) für einen Treibkeil (12). Der Treibkeil ist in Fig. 1 in seiner Ruhestellung wiedergegeben. Diese nimmt er ein, wenn der Treibkeil in seine obere Endstellung verbracht ist. Dann stützt sich die Keilfläche (13) des Treibkeiles (12) aufdem unteren Ende des Bodens (14) des Spaltes (11) mit einer Aussparung (15) auf einem Ansatz (16) des Bodens ab. Eikne halbkreisförmige Verdickung (17), welche an der Treibkeilspitze ansetzt, verhindert das Freiwerden des Treibkeils aus dem Führungsschlitz (11), wenn die Teile ihre aus Fig. 2 ersichtliche Stellung einnehmen.The coupling half (9) consists of a molded part, for example, which has a hollow cylindrical section (10) with which the bolt (2) consisting of a tube ver is welded. In the front part of section (10) there is a gap (11) for a driving wedge (12). The driving wedge is shown in Fig. 1 in its rest position. He takes this when the driving wedge is in its upper end position. Then the wedge surface (13) of the driving wedge (12) is supported on the lower end of the bottom (14) of the gap (11) with a recess (15) on a shoulder (16) of the bottom. A semicircular thickening (17), which attaches to the driving wedge tip, prevents the driving wedge from being released from the guide slot (11) when the parts assume the position shown in FIG. 2.
Der Spalt hat eine obere Eintrittsöffnung (18) und eine untere Austrittsöffnung (19). Die dem Boden (14) gegenüberliegende Dachfläche (20) des Spaltes ist in einem Schaft eines Hakens (21) ausgebildet, dessen Hakenmaul sich nach unten öffnet. Der Hakenrücken sitzt zwischen zwei Erhebungen (22), welche eine versenkte Anordnung gewährleisten und mechanische Beanspruchungen von dem Haken fernhalten.The gap has an upper inlet opening (18) and a lower outlet opening (19). The roof surface (20) of the gap opposite the floor (14) is formed in a shaft of a hook (21), the hook mouth of which opens downwards. The back of the hook sits between two elevations (22), which ensure a recessed arrangement and keep mechanical stresses away from the hook.
Zwischen den Teilen (22) ist im Hakenschaft eine Aussparung (23) als Sitz ür eine Lamelle (24) ausgebildet, die mit ihrem oberen abgewinkelten Ende (25) im Boden der Aussparung (23) mit einer Schraube (26) o.dgl. befestigt ist.Between the parts (22), a recess (23) is formed in the hook shaft as a seat for a lamella (24), or the like with its upper angled end (25) in the bottom of the recess (23) with a screw (26). is attached.
Die Lamelle ist ein dünner Federstahlabschnitt von der Breite des Keilrückens (27), auf dem sie gleitet, wenn der Keil getrieben wird. Sie ragt durch die Eintrittsöffnung (18) des Spaltes (11) und durch dessen Austrittsöffnung (19) nach unten und außen. Ihre Ende ist, wie bei (28) dargestellt, verdickt unter Ausbildung einer Keilfläche (29).The lamella is a thin section of spring steel the width of the back of the wedge (27) on which it slides when the wedge is driven. It protrudes downwards and outwards through the inlet opening (18) of the gap (11) and through its outlet opening (19). Its end, as shown at (28), thickens to form a wedge surface (29).
Zur Montage wird der Haken (21), wie aus der Zeichnung ersichtlich, von oben auf den Ringflansch (6) gehängt. Sodann wird der Keil (12) aus seiner in Fig. 1 wiedergegebenen Ruhestellung in die Ausgangsstellung zur Verspannung der Kupplungshälften geschwenkt und von oben nach unten mit Hammerschlägen angetrieben (Fig. 2). Hierbei gleitet auf der festliegenden Metallamelle (24) die sich von oben nach unten bewegende Flanke (27) des Treibkeils (12). Sobald sie an der Keilspitze (31) die Keilfläche (32) der Lamelle (24) erreicht, wächst die Vortriebskraft des Keils (12) an, wodurch sich die Lamelle mit ihrer der Keil fläche (32) gegenüberliegenden Flanke (29) der Schrägfläche (7) anlegt. Durch die Hammerschläge tritt eine Verspannung des Keilrückens (27) mit der Lamelle (24) und der Lamelle (24) mit der Lagerfläche (7) ein.For assembly, the hook (21), as can be seen in the drawing, is hung from above onto the ring flange (6). Then the wedge (12) is pivoted from its rest position shown in FIG. 1 into the starting position for bracing the coupling halves and driven from top to bottom with hammer blows (FIG. 2). The flank (27) of the driving wedge (12), which moves from top to bottom, slides on the fixed metal plate (24). As soon as it reaches the wedge surface (32) of the lamella (24) at the wedge tip (31), the propelling force of the wedge (12) increases, whereby the lamella and the wedge widen surface (32) opposite flank (29) of the inclined surface (7). The hammer blows cause the wedge back (27) to be braced with the lamella (24) and the lamella (24) with the bearing surface (7).
Das Lösen des in der Vorrichtung (8) verwirklichten Keilgetriebes geschieht durch Hammerschläge auf den Teil (17) des Treibkeils (12). Dadurch löst sich der Keilrücken (27) von der Lamelle (24), die zurückfedert und den Treibkeil schließlich in seiner Ausgangsstellung festlegt.The wedge mechanism implemented in the device (8) is released by hammer blows on the part (17) of the driving wedge (12). As a result, the back of the wedge (27) is released from the lamella (24), which springs back and finally fixes the driving wedge in its starting position.
Zur Verwirklichung der Erfindung ist die Verwendung von Kegelflächen, wie sie bei (6 und 7) für die Kuppplungshälfte (4) dargestellt sind, nicht Voraussetzung. Die Lamelle besteht aus Federstahl und kehrt deswegen nach Herausziehen des Treibkeils (12) in ihre Ausgangsstellung zurück, wobei der Vorsprung (16) wiederum in die Aussparung (14) des Treibkeils (12) nach Fig.1 einrastet. Dadurch ist es möglich, das Aushängen des Hakens (22) der Kupplungshälfte (9) aus dem Flansch (5) ohne Einschränkung zu ermöglichen.To implement the invention, the use of conical surfaces, as shown in (6 and 7) for the coupling half (4), is not a requirement. The lamella consists of spring steel and therefore returns to its starting position after pulling out the driving wedge (12), the projection (16) again engaging in the recess (14) of the driving wedge (12) according to FIG. This makes it possible to unhook the hook (22) of the coupling half (9) from the flange (5) without restriction.
Zwischen dem abgekröpften, oberen Ende (33) der Federstahllamelle und dem unteren verdickten Lamellenende (28) liegt ein Mittelabschnitt (34). Dieser wird von den gekrümmten Flächen (35, 36) begrenzt, welche dem Keilrücken (27) bzw. der Dachfläche (20) des Führungsschlitzes (18) gegenüberliegen. Mit der Fläche (35) wird das Einrasten des Treibkeils (12) wie oben beschreiben herbeigeführt.A central section (34) lies between the cranked, upper end (33) of the spring steel plate and the lower thickened plate end (28). This is delimited by the curved surfaces (35, 36) which lie opposite the wedge back (27) or the roof surface (20) of the guide slot (18). The surface (35) engages the driving wedge (12) as described above.
Wie sich ferner aus den Fig. 1 und 2 ergibt, ist die Keilführung auf dem unteren Ansatz (16) der Kupplungshälfte (9) verlängert, indem der Ansatz (16) über den unteren Rand (37) der Öffnung (19) vorsteht. Hierdurch werden die Keilkräfte auf die Verdickung (28) und damit auf die Lagerfläche (29) konzentriert.1 and 2, the wedge guide on the lower extension (16) of the coupling half (9) is extended by the extension (16) projecting over the lower edge (37) of the opening (19). As a result, the wedge forces are concentrated on the thickening (28) and thus on the bearing surface (29).
Das Ausführungsbeispiel nach Fig. 3 unterscheidet sich nach dem Ausführungsbeispiel nach den Fig. 1 und 2 durch eine verkürzte, d.h. auf die Verdickung (28) beschränkte Lamellenlänge. Hierbei hat die Lamelle (24) ein Pendellager (38), mit dem sie im Führungsschlitz (11) in der Ebene des Treibkeils (12) schwingen kann. Der Zapfen (39) des Pendellagers sitzt im Scheitel des dreieckförmigen Grundrisses der Lamelle (24). Der Scheitel wird von der mit der Lagerfläche (7) zusammenwirkenden Keilfläche (29) und der dieser gegenüberliegenden Fläche (32) des Treibkeils (12) gebildet.The embodiment according to FIG. 3 differs from the embodiment according to FIGS. 1 and 2 by a shortened lamella length, that is to say restricted to the thickening (28). The lamella (24) has a self-aligning bearing (38) with which it can swing in the guide slot (11) in the plane of the driving wedge (12). The pin (39) of the self-aligning bearing sits in the apex of the triangular plan of the lamella (24). The crown is from the with the bearing surface (7) cooperating wedge surface (29) and the opposite surface (32) of the driving wedge (12).
Gemäß der Ausführungsform nach den Fig. 4 und 5 ist der Treibkeil des Keilgetriebes wiederum auf der ringförmigen Schrägfläche (7) des gestellfesten Flanschringes (5) beim Keilanzug abgestützt. Dagegen ist die gegenüberliegende Treibkeilflanke (3) nicht mehr abgestützt und dient auch nicht mehr dem Keilanzug zum Spannen der Kupplung.According to the embodiment according to FIGS. 4 and 5, the driving wedge of the wedge gear is in turn supported on the annular inclined surface (7) of the flange ring (5) fixed to the frame when the wedge is tightened. In contrast, the opposite driving wedge flank (3) is no longer supported and is also no longer used to tighten the wedge for tightening the clutch.
Die beiden Seitenflächen (40, 41) des Treibkeiles (12) bilden die Flanken eines Trennkeils und dessen Keilflächen. Ihre Ebenen konvergieren hinter seiner Keilflanke (13).The two side surfaces (40, 41) of the driving wedge (12) form the flanks of a separating wedge and its wedge surfaces. Their levels converge behind its wedge flank (13).
Gemäß der Darstellung der Fig. 5 ist für den Trennkeil im Spalt (11) eine Keilnut (43) ausgebildet, deren Reibungsflächen (44, 45) außerhalb des Spaltes, d.h. an der dem Haken (5) abgewandten Seite konvergieren. Aus der Fig. 5 ist ersichtlich, daß der Innenzylinder (10) den Nutboden (46) im Spalt (11) bei (47) unterbricht.5, a keyway (43) is formed for the separating wedge in the gap (11), the friction surfaces (44, 45) of which converge outside the gap, ie on the side facing away from the hook (5). 5 that the inner cylinder (10) interrupts the groove bottom (46) in the gap (11) at (47).
Gemäß der dargestellten Ausführungsform beginnen die Keilflächen (40, 41) an den Kanten des Rückens (46) des Treibkeiles (12). Daher wird der Trennkeil gleichzeitig mit dem Keilgetriebe angezogen. Dafür sorgen ferner die dazu parallelen Keilflächenseiten (48, 49, die an der Keilspitze (15) liegen. Diesen sind die Keilnutenseitenflächen (45, 46) über dem Keilnutbodenabschnitt (50) zugeordnet.According to the illustrated embodiment, the wedge surfaces (40, 41) begin at the edges of the back (46) of the driving wedge (12). Therefore, the separating wedge is tightened simultaneously with the wedge gear. This is also ensured by the parallel wedge surface sides (48, 49 which lie at the wedge tip (15). These are assigned the wedge groove side surfaces (45, 46) above the wedge groove bottom section (50).
In der aus Fig. 4 ersichtlichen Position der Teile ist der Treibkeil (12) durch Hammerschläge auf den Keilrücken (51) angetrieben, wobei seine Anzugsfläche (13) oberhalb der Böden (50, 52) der Keilnut im Spalt (11) liegt. Bei gelockertem Treibkeil sind die Trennkeilflächen (40 und 41) von den Nutseitenflächen (44 und 45) der Keilnut gelöst. Wird jedoch der keil angetrieben, so bewegt er sich auch auf den Nutboden zu, wodurch der Trennkeil angezogen wird.In the position of the parts shown in FIG. 4, the driving wedge (12) is driven by hammer blows on the wedge back (51), its tightening surface (13) being above the bottoms (50, 52) of the keyway in the gap (11). When the driving wedge is loosened, the separating wedge surfaces (40 and 41) are detached from the groove side surfaces (44 and 45) of the keyway. However, if the wedge is driven, it also moves towards the bottom of the groove, whereby the separating wedge is tightened.
Dieses Anziehen des Treibkeiles (12) läßt die gerade Flanke (53) des Treibkeiles auf der Schrägfläche (7) gleiten, wobei infolge der Keilflanke (13) der Trennkeil in die Keilnut (47) getrieben wird. Die Reibung geschieht auf den Teilflächen der Keilflanken (44, 45), die mit den Keilflächen (40, 41) des Trennkeils zur Berührung gelangen.This tightening of the driving wedge (12) allows the straight flank (53) of the driving wedge to slide on the inclined surface (7), the separating wedge being driven into the keyway (47) as a result of the wedge flank (13). The friction occurs on the partial surfaces of the wedge flanks (44, 45) which come into contact with the wedge surfaces (40, 41) of the separating wedge.
Der Keilrücken (54), die Keilflanke (13) und die Keilflächen (40, 41) bilden die Kanten eines Trapezprofiles, das zu einer Mittelsenkrechten (45) symmetrisch verlaufende Schrägkanten aufweist. Beim Treibkeilanzug liegen die äußere Schrägfläche (6) und die ihr gegenüberliegende Schrägfläche (57) an den ihnen zugeordneten Flächen (58, 59) des innen konischen Hakenmaules (60) an. Die Kupplungshälfte (9) wird dabei vorzugsweise elastisch verformt und führt auf diese Weise die Verspannung mit der anderen Kupplungshälfte (4) herbei.The wedge back (54), the wedge flank (13) and the wedge surfaces (40, 41) form the edges of a trapezoidal profile which has inclined edges which run symmetrically to a central perpendicular (45). In the case of a driving wedge suit, the outer inclined surface (6) and the opposite inclined surface (57) bear against the surfaces (58, 59) of the inside conical hook jaw (60) assigned to them. The coupling half (9) is preferably elastically deformed and in this way brings about the bracing with the other coupling half (4).
Gemäß der dargestellten Ausführungsform ist außerdem vorgesehen, daß mit einem Doppelkopfniet (56) das an die Treibkeilspitze (15) ansetzende Ende (55) zu durchsetzen. Das Ende (55) besteht daher aus einem Flachprofil. Die beiden Nietköpfe dienen dazu, das Austreiben des Treibkeiles (12) nach oben zu vermeiden.According to the embodiment shown, it is also provided that the end (55) which is to be attached to the driving wedge tip (15) is to be penetrated with a double-head rivet (56). The end (55) therefore consists of a flat profile. The two rivet heads serve to prevent the driving wedge (12) from being driven upwards.
Im allgemeinen ist eine obere Treibkeilsperre, die das Austreiben des Treibkeils nach unten aus dem Spalt (11) verhindert, nicht erforderlich. Wird sie vorgesehen, so kann sie aus einer zeitlichen Verdickung des Treibkeiles (12) bestehen.In general, an upper wedge lock, which prevents the driving wedge from being driven downward out of the gap (11), is not required. If it is provided, it can consist of a thickening of the driving wedge (12) over time.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88101742T ATE65282T1 (en) | 1987-11-27 | 1988-02-06 | METAL SCAFFOLDING FOR BUILDINGS. |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3740231 | 1987-11-27 | ||
DE3740231 | 1987-11-27 | ||
DE19883800169 DE3800169A1 (en) | 1987-11-27 | 1988-01-07 | Upright metal scaffolding for structures |
DE3800169 | 1988-01-07 | ||
DE3802172 | 1988-01-26 | ||
DE19883802172 DE3802172A1 (en) | 1988-01-26 | 1988-01-26 | Upright metal scaffolding for structures, in particular tubular scaffolding |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90123373.4 Division-Into | 1990-12-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0317695A1 true EP0317695A1 (en) | 1989-05-31 |
EP0317695B1 EP0317695B1 (en) | 1991-07-17 |
Family
ID=27196840
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88101742A Expired - Lifetime EP0317695B1 (en) | 1987-11-27 | 1988-02-06 | Metal scaffolding for buildings |
EP19900123373 Withdrawn EP0430308A3 (en) | 1987-11-27 | 1988-02-06 | Metal scaffolding for buildings |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19900123373 Withdrawn EP0430308A3 (en) | 1987-11-27 | 1988-02-06 | Metal scaffolding for buildings |
Country Status (4)
Country | Link |
---|---|
EP (2) | EP0317695B1 (en) |
DE (1) | DE3863753D1 (en) |
DK (1) | DK76888A (en) |
NO (1) | NO880568L (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0527086A1 (en) * | 1991-08-05 | 1993-02-10 | Etem S.A. | Arrangement for connecting or assembling the end of a cross member to an upright an seaffolding system including these cross members provided with such arrangement on both ends |
DE4242031B4 (en) * | 1992-12-12 | 2004-09-30 | Günter Rux GmbH | metal framework |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2755166B1 (en) * | 1996-10-24 | 1998-12-31 | Adam Denis | IMPROVED CONNECTION DEVICE FOR MESHED SUPPORT STRUCTURE SUCH AS SCAFFOLDING |
CN103032658B (en) * | 2012-12-24 | 2014-10-29 | 广东威创视讯科技股份有限公司 | Locking mechanism for rear projection screen frame |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0009680A1 (en) * | 1978-10-02 | 1980-04-16 | Gerhard Dobersch | Steel tubing scaffold |
WO1981001164A1 (en) * | 1979-10-19 | 1981-04-30 | Ringons Mek Verk Ab | Device for coupling together laterally directed scaffold elements to uprights in a scaffold or the like |
AU518442B2 (en) * | 1977-06-06 | 1981-10-01 | Cyclone Scaffolding Pty. Limited | Scaffold interconnections |
WO1982002733A1 (en) * | 1981-02-02 | 1982-08-19 | Udo Rose | Steel tube scaffolding |
EP0110027A1 (en) * | 1982-11-08 | 1984-06-13 | FIGGIE INTERNATIONAL INC. (Delaware Corporation) | Scaffold joint for a scaffold structure |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH384190A (en) * | 1963-03-28 | 1964-11-15 | Pedroli Dante | Device for making scaffolding, axle-holder ties, trestles and tubular structures in general |
FR2527711B1 (en) * | 1982-05-28 | 1986-08-22 | Select Etem Sa | ASSEMBLY KNOT FOR VARIOUS STRUCTURES, SUCH AS SCAFFOLDING |
-
1988
- 1988-02-06 EP EP88101742A patent/EP0317695B1/en not_active Expired - Lifetime
- 1988-02-06 DE DE8888101742T patent/DE3863753D1/en not_active Expired - Lifetime
- 1988-02-06 EP EP19900123373 patent/EP0430308A3/en not_active Withdrawn
- 1988-02-09 NO NO88880568A patent/NO880568L/en unknown
- 1988-02-15 DK DK076888A patent/DK76888A/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU518442B2 (en) * | 1977-06-06 | 1981-10-01 | Cyclone Scaffolding Pty. Limited | Scaffold interconnections |
EP0009680A1 (en) * | 1978-10-02 | 1980-04-16 | Gerhard Dobersch | Steel tubing scaffold |
WO1981001164A1 (en) * | 1979-10-19 | 1981-04-30 | Ringons Mek Verk Ab | Device for coupling together laterally directed scaffold elements to uprights in a scaffold or the like |
WO1982002733A1 (en) * | 1981-02-02 | 1982-08-19 | Udo Rose | Steel tube scaffolding |
EP0110027A1 (en) * | 1982-11-08 | 1984-06-13 | FIGGIE INTERNATIONAL INC. (Delaware Corporation) | Scaffold joint for a scaffold structure |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0527086A1 (en) * | 1991-08-05 | 1993-02-10 | Etem S.A. | Arrangement for connecting or assembling the end of a cross member to an upright an seaffolding system including these cross members provided with such arrangement on both ends |
FR2680196A1 (en) * | 1991-08-05 | 1993-02-12 | Atem Sa | DEVICE FOR ASSEMBLING AND ATTACHING AN END OF A RUNWAY TO AN EDGE AND SCAFFOLDING SYSTEM COMPRISING TRAVERS HAVING EACH OF THE END OF SUCH A DEVICE. |
DE4242031B4 (en) * | 1992-12-12 | 2004-09-30 | Günter Rux GmbH | metal framework |
Also Published As
Publication number | Publication date |
---|---|
EP0430308A3 (en) | 1991-06-26 |
NO880568D0 (en) | 1988-02-09 |
DE3863753D1 (en) | 1991-08-22 |
DK76888D0 (en) | 1988-02-15 |
DK76888A (en) | 1989-05-28 |
NO880568L (en) | 1989-05-29 |
EP0430308A2 (en) | 1991-06-05 |
EP0317695B1 (en) | 1991-07-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69233670T2 (en) | Quick coupling device for boom parts of cranes and the like. | |
DE2704398B2 (en) | Framework that can be assembled from uprights and bars | |
DE3333619A1 (en) | FORMWORK FOR ROUND BUILDINGS | |
EP0694659B1 (en) | Scaffolding | |
DE2045456A1 (en) | Coupling for rebar or the like | |
DE3049971C2 (en) | ||
DE3627583A1 (en) | Set of structural elements for a facade substructure | |
EP0369153B1 (en) | Device for connecting additional elements to forming panels | |
EP0317695B1 (en) | Metal scaffolding for buildings | |
WO2001073302A2 (en) | Tubular element | |
DE69115698T2 (en) | Device for quick connection of formwork panels for concrete structures | |
DE2200864A1 (en) | SUPPORT ANCHORS | |
DE10355495A1 (en) | Dismountable scaffolding | |
DE69107935T2 (en) | Scaffolding structures. | |
DE2904000C2 (en) | Link for chains | |
DE2214025A1 (en) | DETACHABLE QUICK CONNECTION | |
DE4039421C2 (en) | ||
DE2150950C3 (en) | Coupling for concrete formwork elements | |
DE2508274A1 (en) | FRAMEWORK CONNECTION | |
DE2118419A1 (en) | Banisters | |
DE3802172A1 (en) | Upright metal scaffolding for structures, in particular tubular scaffolding | |
DE2844615A1 (en) | Ribbed edge formwork connector - has round edged protruding flat wedge piece for twist locking | |
DE3800169A1 (en) | Upright metal scaffolding for structures | |
DE3642846A1 (en) | FRAME ELEMENT | |
DE1816956C3 (en) | Fastening device for a wheel handlebar |
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 FR GB LI LU NL SE |
|
17P | Request for examination filed |
Effective date: 19890622 |
|
17Q | First examination report despatched |
Effective date: 19900619 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE FR GB LI LU NL SE |
|
REF | Corresponds to: |
Ref document number: 65282 Country of ref document: AT Date of ref document: 19910815 Kind code of ref document: T |
|
XX | Miscellaneous (additional remarks) |
Free format text: TEILANMELDUNG 90123373.4 EINGEREICHT AM 06/02/88. |
|
ET | Fr: translation filed | ||
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
REF | Corresponds to: |
Ref document number: 3863753 Country of ref document: DE Date of ref document: 19910822 |
|
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 | ||
EPTA | Lu: last paid annual fee | ||
EAL | Se: european patent in force in sweden |
Ref document number: 88101742.0 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: LU Payment date: 19950201 Year of fee payment: 8 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19960206 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20070222 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20070323 Year of fee payment: 20 Ref country code: AT Payment date: 20070323 Year of fee payment: 20 Ref country code: BE Payment date: 20070323 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20070326 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20070329 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20070425 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 |
|
BE20 | Be: patent expired |
Owner name: *GUNTER RUX G.M.B.H. Effective date: 20080206 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
NLV7 | Nl: ceased due to reaching the maximum lifetime of a patent |
Effective date: 20080206 |
|
EUG | Se: european patent has lapsed | ||
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 EXPIRATION OF PROTECTION Effective date: 20080206 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20070222 Year of fee payment: 20 |
|
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 EXPIRATION OF PROTECTION Effective date: 20080205 |