EP2390439B1 - Module frame with rigid adjoining tubular cross bar connections - Google Patents
Module frame with rigid adjoining tubular cross bar connections Download PDFInfo
- Publication number
- EP2390439B1 EP2390439B1 EP11004300.7A EP11004300A EP2390439B1 EP 2390439 B1 EP2390439 B1 EP 2390439B1 EP 11004300 A EP11004300 A EP 11004300A EP 2390439 B1 EP2390439 B1 EP 2390439B1
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- EP
- European Patent Office
- Prior art keywords
- vertical
- connection
- vertical post
- scaffold according
- case
- 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.)
- Not-in-force
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Classifications
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- 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
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- 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
- E04G7/301—Scaffolding bars or members with non-detachably fixed coupling elements for connecting bars or members which are parallel or in end-to-end relation
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- 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
- E04G7/32—Scaffolding bars or members with non-detachably fixed coupling elements with coupling elements using wedges
Definitions
- the invention relates to a modular scaffold, consisting of at least one elongated vertical stem made of a metal tube or another hollow profile, in one end of each a hollow coupling profile is inserted, the outer surface rests at least partially on the inner surface of the vertical stem and by connections to the Vertical stem is connected, wherein the compound interrupts the continuous surface of the vertical stem and pushed on each vertical stem at least one disc-shaped connecting plates with a central opening arranged in its center and fixed and the two large disc surfaces are each comprised by the two legs of at least one, about fork-shaped pipe bolt connection , which is connected to an approximately horizontally extending tube bolt and a wedge in each case by a respective wedge opening in the legs and one edge opening in the connection plates is inserted therethrough.
- scaffolding For the construction of scaffolding describes the patent DE 2449124 , Eberhard Layher, 16.10.1974, a so-called modular scaffolding that consists of vertical stems on which disc-shaped connecting plates are pushed at regular intervals with an opening in its center and fixed by welding. These discs are pierced along their edge by a plurality of openings in which a plurality of horizontal tube bolts are attached.
- a pipe bolt connection is fastened in both ends of the pipe bolt, which comprises the connecting disk fork-shaped from above and from below and has in its two legs each an opening through which a wedge can be inserted, which also extends through the edge-side opening in the connection disk ,
- the pipe bolt connection and the wedge is the horizontal Pipe bolt firmly connected to the vertical rod.
- This compound can transmit tensile and compressive forces acting on the vertical stem in the longitudinal direction of the tube bolt.
- a scaffold module is assembled into a rectangle, consisting of two vertical stems and at the top and bottom of each a horizontal pipe bolt and if this rectangle is loaded with forces, of which at least a proportion acts in the direction of the horizontal pipe bolt, then deformed Rectangle soon becomes a parallelogram.
- a scaffold constructed in this way would "fold over" and is therefore not sufficiently stable.
- the vertical stems are predominantly a section of a metal tube of circular cross-section.
- this metal tube In the upward-facing end of this metal tube another, very short piece of a metal tube is inserted, which protrudes to one half in the lower vertical stem and is inserted with its other half in the upper vertical stem.
- both vertical handles thus touch each other with their front edges. Since this surface has to transmit the entire force acting in the vertical direction, in practice it is formed with rather high accuracy as a plane which is aligned perpendicular to the longitudinal axis of the vertical stem. Therefore, this surface can not be used for the formation of a weld for attachment of the coupling profile at the ends of the vertical stems.
- the pressings when used on cylindrically profiled vertical stems, as well as screws or rivets, the pressings have the disadvantage that the outer surface is no longer a smooth cylinder because of the depressions required for the point compression, so that the connection disks can no longer be fastened at any point of the vertical stalk.
- the invention has set itself the task, in a modular scaffold, the coupling profiles are secured to connect two adjacent vertical stems by not flush with the outer surface compounds to attach the pipe lock connection to the connection plate that a torque from the pipe bolt on the vertical stem can be transferred.
- each coupling profile is connected to a vertical stem by two or more compounds in a first group with a respective same distance to the end of the vertical stem and a second group with a respective same, compared to the first group greater distance to Split at the end of the vertical stem and a connecting plate, the second group at least partially covered and rest the ends of the legs of the forked pipe bolt connection outside the first group ofillonverpresseptonne on the vertical stem.
- the core idea of the invention is to make the two legs of the pipe bolt connection in such a way and to arrange on the vertical handle that they act like a triangular stiffener in the framework composite.
- the legs thus assume the function of a gusset plate in a structure.
- a gusset plate is a triangular, flat element, which is in each case firmly connected to a bar at an angle between two intersecting bars at two edges.
- a connection may e.g. be easily made by welding.
- one of these two connections must be set by means of a quick and easy detachable connection.
- the function of a gusset plate at the junction of two vertical stems and a pipe bolt is taken over by the legs of the pipe bolt connection.
- the permanent connection between the legs and the pipe bolt is ensured by the fact that the pipe block is connected at its end fixed to the center piece of the pipe bolt connection, to which the two legs are integrally formed. Or in another formulation - the two legs are first connected to each other and only in the further course with the tube bolt. Or, in a third view, for the same context: the pipe bolt continues with respect to its static effectiveness into the center piece of the pipe bolt connection.
- connection of acting as a gusset plate two legs to the pipe bolt is therefore permanent.
- the connection of the two legs to the vertical stem must be solvable, but still fully loaded in the assembled state.
- the invention makes up for it to take advantage of the fact that two parts, which rest only on each other, can still transmit a compressive force, as long as it is aligned perpendicular to the joint between these two parts. It should only be noted that the compressive force contains no force component that runs parallel to the joint and thereby causes a "slippage" of the two parts against each other.
- the "slipping out" of the two legs relative to the vertical style is precluded by the wedge passing through the opening in each leg and through the edge opening of the terminal disk, thereby preventing removal of the pipe bolt terminal from the vertical stem.
- the downwardly pointing leg of the pipe bolt connection is loaded only when a force acts on the pipe bolt, which wants to push him down.
- a force is formed which presses the downwardly pointing leg against the vertical stem.
- the upward-pointing leg of the pipe bolt connection is relieved.
- connection is a depression with a depression, the front side may find no support, but "hangs in the air.” If the connection is a rivet or a screw and the end of a leg rests on the head, then the other leg of the pipe bolt connection does not stop and "hangs in the air.” Because then one of the two legs no support, the pipe bolt connection can not act as a gusset plate.
- connection are essential. At least one connection between the vertical stem and the coupling profile is sufficient to prevent the coupling profile from slipping in the longitudinal direction of the vertical stem.
- the coupling profile must have a lateral clearance relative to the vertical stem in order to be inserted therein, a single, point-like connection would act like the pivot point of a hinge or other articulated connection.
- a single, point-like connection would act like the pivot point of a hinge or other articulated connection.
- the invention provides two longitudinally spaced connections.
- connections are split into two groups.
- a first group has a small and equal distance for each connection to the end of the vertical stem.
- the second group of compounds in turn has the same, but significantly greater distance from the end of the vertical stem.
- the invention calls several alternative embodiments for the connection of vertical stem and coupling profile.
- the compounds can be in the wall of the vertical stem depressed, inward-facing depressions, which have also pressed into the wall of the coupling profile.
- These recesses may have different shapes. For example, they may be shaped like a trench or a gutter or a hollow cone or a spherical segment or a ring segment.
- the shape of a hollow cone or a spherical segment or another, rotationally symmetrical shape is also referred to as point compression, because the forming tool is applied only to a single point.
- At least one joint may be a rivet or a screw or a spot weld.
- a rivet or a screw is screwed or inserted into holes in the vertical stem and the coupling profile inserted therein, its head protrudes beyond the surface of the vertical stem. If the center opening of the connection discs is enlarged at this point with a corresponding notch or the diameter of the center opening as a whole is slightly larger, so the connection plates can still slide over the vertical handle. is.
- the front side of the legs of the pipe bolt connection and the connections to be arranged so that they do not meet each other.
- the invention thus ensures that one end face always rests outside of the connections on the vertical rod and thereby finds sufficient support.
- the invention provides that the second group of connections is at least partially covered by the respective uppermost connecting plate of each vertical stem. This ensures that the ends of the legs of the pipe bolt connection can not meet these connections.
- the front pages must not hit the connections of the first group. Therefore, the distance between the first group of connections and the connection plate must be either greater or smaller than the distance of the front side of the upwardly pointing leg of the pipe bolt connection from the connection plate. In this way, a firm clamping of the legs of the pipe bolt connection between the vertical stem and a pipe bolt attached thereto.
- the coupling profile is connected only by means of two, mutually longitudinally spaced connections with the vertical stem.
- the horizontal pipe bolts are usually arranged in a rectangular grid, thus forming an angle of 90 degrees to each other.
- other angles may be required for the incorporation of irregularly shaped walls.
- the invention proposes that the edge openings in the connection plates are wider than the wedge. Then, the pipe bolt connection can be wedged with respect to the longitudinal axis of the vertical profiles within a certain angular range with an arbitrary angle with the connection disk.
- the face of each leg is complementary to the outer surface of the vertical stem formed on which it rests.
- the face should be a complementary hollow cylinder.
- the pipe bolt connection with its legs and their end faces is a very important component of a modular scaffolding according to the invention. Its rather complex shape has to be adapted to the connecting plate, the wedge, the tube bar and the profile of the vertical handles. For this purpose, the respective contact surfaces must be made with a certain minimum accuracy.
- the invention proposes a shaping of the pipe bolt connection made of sheet steel, which is also known and proven for fasteners of scaffolding. It is proposed to form and bend the pipe bolt connection from an elongated rectangle made of sheet steel.
- the blank must be provided in the middle with a longitudinally extending slot, which later forms the slot between the two legs, which is pushed onto the connecting plate. Above and below the middle of this slot, the two end faces of the legs must be formed.
- the end faces eg complementary to be formed as a hollow cylinder.
- the two ends of the elongated steel sheet are each formed into a longitudinally extending profile which is complementary to the interior of the pipe bolt. If the pipe bolt also have a circular interior, the two ends of the elongated steel sheet must each be formed into a channel with a semicircular cross section.
- these two channel-like profiled sections are angled far enough at the border to the areas already formed in the middle of the steel sheet to the later end face that the edges of the semicircular profiled sections contact each other.
- the two channel-like sections then together form a piece of pipe which can be pushed into the pipe block.
- a "leading parapet" can be formed during the construction of the scaffold, ie, when building a scaffold plane, the parapet for the next higher level is already erected from the level below.
- the construction staff enters the highest scaffolding level at this level To complete the scaffolding, the required parapet is already present.
- the invention proposes that the module framework consists of standardized, identical vertical stems.
- the vertical stems of the lowest level of the scaffolding rest on vertical starting pieces, of which the outer ones are extended by a dimension which makes sense for a parapet height and therefore continue to protrude upwards.
- the outer vertical starting pieces are either designed to be correspondingly long or lengthened with a vertical stem of corresponding dimension.
- each a standard vertical stem is inserted, at the top of the terminal plate in addition a telescopically adjustable in length parapet with a ring-shaped hook or eye is pivotally mounted.
- a fitter inserts this vertical stem into a longer vertical hub, the parapet bar hangs down the side of the vertical stem.
- balustrade can be temporarily connected to the vertical stem by means of an H-shaped plastic clip.
- This H-shaped clip can be attached with an opening on the vertical handle and takes on the parapet with its other opening.
- the parapet latch is also hinged with its other end pivotally in the uppermost connecting plate of the next vertical handle. If still another scaffolding section is to be erected, another parapet is hung in this top connecting plate, which later forms the parapet for the next scaffolding section.
- the vertical stem After attaching the one or both parapet, the vertical stem is raised and placed on the next, higher vertical starting piece. As a result, the parapet of the next scaffold level is formed very early from the first, telescopically adjustable in its length balustrade.
- the decisive advantage is that it significantly improves the safety of the operating personnel and complies with the relevant regulations.
- a special, telescopically adjustable in length parapet must be used, which must be provided for connection to the connection plate at both ends with a pivotable connection element. It is suitable, e.g. a ring-segment-shaped hook or eye, which can be suspended in an edge opening of a connection plate and pivoted therein.
- connection plate As another advantageous variant, the following describes how a connection created by means of point compression, ring-segment-shaped depression, which is largely covered by the connection plate, in addition to the attachment of the connection plate can be used on the vertical stem.
- connection plate is provided on its circumference with small notches, which are arranged opposite the depressions of the point compression and have approximately the same profile as these depressions. This results in an opening which is formed on the one hand part of the recess of the Nursingverpressung and the other part of the notch in the edge of the central opening.
- a segment of an imaginary ring is pushed in, the profile of which corresponds to the opening between the connecting disk and vertical stem and whose radius is complementary to the shape of the depression in the longitudinal direction of the vertical stem.
- the ring segment thus forms a curved bolt, which conforms to the shape of the depression and has approximately the shape of a banana. Due to its curvature, the ring segment blocks any movement of the connection disc relative to the vertical stem. As a result, the welding or other connection of the connection plate with the vertical stem is either additionally supported or even replaced.
- the ring-segment-shaped connecting element between the connection plate and vertical stem does not fall down again when shaken, it can be provided with beads and projections which protrude beyond its profile and thus on the profile of the opening between the connecting plate and vertical stem and thereby secure the connecting element in position.
- a pulse is preferably suitable, which moves on a circular arc, which corresponds to the complete imaginary ring, from which the curved connecting element has been mentally cut out. Therefore, the invention proposes for driving the connecting element before a swivel arm whose length corresponds to the aforementioned radius. With such a pivoting arm for guiding the connecting elements and an automation of the introduction is possible.
- FIG. 1a According to the current state of the art, two vertical handles 1 are shown with their lower and their upper end region, respectively. Within the dotted circle they are connected by a - not visible here - coupling profile 2 with each other. On each of the two shown vertical stalks 1 is ever a thrust washer 3 is pushed. The lower connection disk 3 is arranged in the vicinity of the four visible connections 11, which are designed as point pressings. The "point grouting" in the following is simplicity also provided with the reference numeral "11".
- the upper point crimping 11 are summarized in a first group 11 a, which has a relatively small distance to the upper end of the vertical stem 1 and the lower Albanyverpressept 11 in a second group 11 b, which has a greater distance from the upper end of the vertical stem 1.
- FIG. 1b is the in FIG. 1 a marked with dash-dotted line image detail enlarged.
- the upper vertical stem 1 is donned graphically, so that the therein plugging coupling profile 2 is visible.
- FIG. 1b is also very easy to see how the tube bolt 5 is firmly connected to the pipe bolt connection 4.
- the pipe bolt connection 4 consists of the center piece 43 that protrudes only a small amount from the pipe block 5.
- the two legs 41 are integrally formed thereon. In FIG. 1b is very easy to understand how these two legs 41 surround the connection plate 3 fork-shaped.
- FIG. 1b the crucial disadvantage of this configuration is very quickly clear: the upper leg 41 of the pipe bolt connection 4 is not with its end face 42 on the vertical stem 1, since at this point a point compression 11 is pressed into the vertical stem 1. As a result, the two end faces 42 are not on the vertical stem 1, but can move relative to this.
- FIG. 1b is understandable that when applying a pointing in the plane of downward force on the free and in FIG. 1 invisible end of the tubular bolt 5, from which a torque is generated, which acts on the pipe bolt connection 4 and pivots about an axis which extends perpendicular to the wedge 6 through the connection plate 3 therethrough. Because of the disturbed by the point compression 11 contact surface of the end faces 42 of the leg 41, the pipe bolt connection 4 can not resist this torque, so that it actually comes to a pivoting of the pipe bolt 5 relative to the vertical stems 1. The framework is therefore unstable.
- FIGS. 1 a and 1 b are the same sections of a modular framework shown as in the FIGS. 1 a and 1 b, but with the essential feature of the invention, namely the creation of a complete bearing surface of the end face 42 of both legs 41 of the pipe bolt connection 4.
- This is achieved by arranging the second group 11 b of the point pressings 11 below the connection disk 3.
- the connection plate 3 with the walls of its central opening 31 covers the point compression 11 of the second group 11b almost completely.
- FIG. 2b is very well understood that with a vertical force acting on a - far away - end of the tube bolt 5, this exerts a torque on the tube bolt 4 and itself then the end face of the upper leg with a relatively high force on the vertical stem 1 is pressed.
- FIG. 2b makes it clear that at a lowering of the pipe bolt 5, instead, the other, downwardly facing leg 41 is supported with its end face 42 on the vertical stem 1. During this phase, the other, upwardly facing leg 41 of the pipe lock connection is relieved.
- FIG. 3a shows the front side and FIG. 3b the outside of the framework, wherein the "outside" is the side facing away from the wall to be equipped wall of the scaffold.
- FIG. 3a Shown is the particular embodiment with a "leading parapet”.
- FIG. 3a the front side of the module frame is reproduced. It stands with its right side shown on the facade to be equipped. The page shown on the left is the "outside”.
- FIG. 3a can be seen very quickly that the topmost vertical stem 1 protrudes beyond the top level.
- FIG. 3b can be seen in the external view of the scaffold that for the uppermost scaffold level, a complete balustrade has already been built:
- the top edge consists of two telescopically extendable parapet 52. Below each is a pipe bar 5 of fixed length with the inventive compound, as in FIG. 2b is shown, connected at both ends with a respective connecting plate 3 on a vertical stem 1.
- FIGS. 3a and 3b is comprehensible, such as an inventive module framework with the additional property “leading parapet” is being built.
- the vertical starting pieces 7 are placed on the - not marked here - floor.
- the building-distant vertical starting pieces 7 are formed as an extended vertical starting piece 71, which in FIG. 3a can be seen on the left edge and FIG. 3b can be seen at the outer front of the module frame shown here in the lower area.
- a vertical stem 1 can be placed on the extended vertical starting pieces 71, at the top of the terminal plate 3, a telescopically extendable parapet 52 is pivotally mounted. Im - in FIG. 3 not drawn - moment of lifting so the vertical stem 1 and the parapet 52 hanging thereon are aligned approximately parallel.
- the first vertical stem 1 has been placed in its position on the extended vertical starting piece 71, the still free end of the balustrade bar 52 can be connected to the connecting plate 3 of another vertical stem.
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- Mutual Connection Of Rods And Tubes (AREA)
Description
Die Erfindung bezieht sich auf ein Modulgerüst, bestehend aus wenigstens einem länglichen Vertikalstiel aus je einem Metallrohr oder einem anderen Hohlprofil, in dessen eines Ende je ein hohles Kupplungsprofil eingesteckt ist, dessen Außenfläche zumindest teilweise auf der Innenfläche des Vertikalstiels aufliegt und das durch Verbindungen mit dem Vertikalstiel verbunden ist, wobei die Verbindung die durchgehende Fläche des Vertikalstiels unterbricht und auf jeden Vertikalstiel wenigstens eine scheibenförmige Anschlussscheiben mit einer in Ihrer Mitte angeordneten Mittenöffnung aufgeschoben und befestigt ist und die beiden großen Scheibenflächen jeweils von den beiden Schenkeln wenigstens eines, etwa gabelförmigen Rohrriegelanschlusses umfasst werden, der mit einem etwa horizontal verlaufenden Rohrriegel verbunden ist und jeweils ein Keil durch je eine Keilöffnung in den Schenkeln sowie je einer Randöffnung in den Anschlussscheiben hindurch gesteckt ist.The invention relates to a modular scaffold, consisting of at least one elongated vertical stem made of a metal tube or another hollow profile, in one end of each a hollow coupling profile is inserted, the outer surface rests at least partially on the inner surface of the vertical stem and by connections to the Vertical stem is connected, wherein the compound interrupts the continuous surface of the vertical stem and pushed on each vertical stem at least one disc-shaped connecting plates with a central opening arranged in its center and fixed and the two large disc surfaces are each comprised by the two legs of at least one, about fork-shaped pipe bolt connection , which is connected to an approximately horizontally extending tube bolt and a wedge in each case by a respective wedge opening in the legs and one edge opening in the connection plates is inserted therethrough.
Zum Aufbau von Baugerüsten beschreibt die Patentschrift
Dafür ist in beiden Enden des Rohrriegels je ein Rohrriegelanschluss befestigt, der die Anschlussscheibe von oben und von unten gabelförmig umfasst und in seinen beiden Schenkeln je eine Öffnung aufweist, durch die ein Keil hindurchgesteckt werden kann, der auch durch die randseitige Öffnung in der Anschlussscheibe verläuft. Mittels dieses Rohrriegelanschlusses und des Keils ist der horizontale Rohrriegel fest mit der Vertikalstange verbunden. Diese Verbindung kann in Längsrichtung des Rohrriegels wirkende Zug- und Druckkräfte auf den Vertikalstiel übertragen.For this purpose, in each case a pipe bolt connection is fastened in both ends of the pipe bolt, which comprises the connecting disk fork-shaped from above and from below and has in its two legs each an opening through which a wedge can be inserted, which also extends through the edge-side opening in the connection disk , By means of this pipe bolt connection and the wedge is the horizontal Pipe bolt firmly connected to the vertical rod. This compound can transmit tensile and compressive forces acting on the vertical stem in the longitudinal direction of the tube bolt.
Ihr Nachteil ist, dass sie kaum Drehmomente übertragen kann, da der Schlitz zwischen den beiden Schenkeln des Rohrriegelanschlusses für eine praxisgerechte Montage ein Spiel gegenüber der Anschlussscheibe benötigt. Wenn dieses Spiel durch Verschwenken des Rohrriegels gegenüber dem Vertikalstiel überbrückt ist und die Schenkel des Rohrriegelanschlusses jeweils mit einer Kante auf der Anschlussscheibe aufliegen, wirkt auf die plattenförmige Anschlussscheibe ein Drehmoment, das ihre Biegefestigkeit beansprucht. Wie bei jeder anderen Scheibe ist jedoch auch bei dieser Scheibe der Widerstand gegen ein Abknicken in der Fläche begrenzt, zumal die Scheibe durch die randseitigen Öffnungen diesbezüglich etwas geschwächt wird.Their disadvantage is that they can hardly transmit torques, since the slot between the two legs of the pipe bolt connection for a practical installation requires a game against the connection plate. If this game is bridged by pivoting of the pipe bolt relative to the vertical handle and the legs of the pipe bolt connection each rest with an edge on the connection disk acts on the plate-shaped connection plate a torque that claims its bending strength. As with any other disc, however, the resistance to kinking in the surface is limited even with this disc, especially since the disc is weakened by the marginal openings in this respect something.
Wenn also ein Gerüstmodul zu einem Rechteck zusammengesetzt wird, bestehend aus zwei Vertikalstielen und an deren oberen und unteren Ende je einem horizontalen Rohrriegel und wenn dieses Rechteck mit Kräften belastet wird, von denen zumindest ein Anteil in Richtung der horizontalen Rohrriegel wirkt, dann verformt sich das Rechteck recht bald zu einem Parallelogramm, Ein so aufgebautes Gerüst würde "umklappen" und ist also nicht ausreichend standsicher.So if a scaffold module is assembled into a rectangle, consisting of two vertical stems and at the top and bottom of each a horizontal pipe bolt and if this rectangle is loaded with forces, of which at least a proportion acts in the direction of the horizontal pipe bolt, then deformed Rectangle soon becomes a parallelogram. A scaffold constructed in this way would "fold over" and is therefore not sufficiently stable.
Als Abhilfe schlägt das Patent
Eine weitere, technische Herausforderung stellt sich auf dem aktuellen Stand der Technik bei der Verbindung von zwei übereinander angeordneten und miteinander zu verbindenden Vertikalstielen.Another technical challenge arises in the current state of the art in the connection of two vertical stacks arranged one above the other and to be connected to one another.
In der Praxis sind die Vertikalstiele überwiegend ein Abschnitt eines Metallrohres mit kreisförmigem Querschnitt. In das nach oben weisende Ende dieses Metallrohres wird ein weiteres, sehr kurzes Stück eines Metallrohres eingesteckt, das zur einen Hälfte in den unteren Vertikalstiel hineinragt und mit seiner anderen Hälfte in den oberen Vertikalstiel hineingesteckt wird.In practice, the vertical stems are predominantly a section of a metal tube of circular cross-section. In the upward-facing end of this metal tube another, very short piece of a metal tube is inserted, which protrudes to one half in the lower vertical stem and is inserted with its other half in the upper vertical stem.
Beide Vertikalstiele berühren sich also mit ihren Stirnkanten. Da diese Fläche die gesamte, in vertikaler Richtung wirkende Kraft übertragen muss, ist sie in der Praxis mit recht hoher Genauigkeit als eine Ebene ausgebildet, die senkrecht zur Längsachse des Vertikalstiels ausgerichtet ist. Deshalb kann diese Fläche nicht für die Ausbildung einer Schweißnaht zur Befestigung des Kupplungsprofils an den Enden der Vertikalstiele genutzt werden.Both vertical handles thus touch each other with their front edges. Since this surface has to transmit the entire force acting in the vertical direction, in practice it is formed with rather high accuracy as a plane which is aligned perpendicular to the longitudinal axis of the vertical stem. Therefore, this surface can not be used for the formation of a weld for attachment of the coupling profile at the ends of the vertical stems.
Als Alternative sind auf aktuellem Stand der Technik mehrere verschiedene Möglichkeiten bekannt, um die in die Vertikalstiele eingesteckten Kupplungsprofile gegen eine Verschiebung in Längsrichtung zu sichern. Neben dem Verschrauben oder Vernieten ist eine weitere Möglichkeit die sogenannte "Verpressung".As an alternative, several different ways are known in the current state of the art to secure the inserted into the vertical stems coupling profiles against displacement in the longitudinal direction. In addition to screwing or riveting another option is the so-called "compression".
Das sind in die Wand des Vertikalstiels eingedrückte, nach Innen hin weisende Vertiefungen, die sich auch in die Wandung des Kupplungsprofils hineingedrückt haben. Diese Vertiefungen bilden in Längsrichtung des Vertikalstieles und des Kupplungsprofils Hinderschneidungen, die das Kupplungsprofil zuverlässig in Längsrichtung fixieren.These are in the wall of the vertical stem depressed, inward-facing depressions, which also in the wall of the coupling profile have pressed in. These depressions form in the longitudinal direction of the vertical stem and the coupling profile cuttings that reliably fix the coupling profile in the longitudinal direction.
Das Prinzip, bei einem Gerüst die Verbindung von zwei Profilen durch Verpressungen zu sichern, ist aus der Gebrauchsmusterschrift
Die Verpressungen haben jedoch bei der Anwendung an zylindrisch profilierten Vertikalstielen ebenso wie Schrauben oder Nieten den Nachteil, dass die Außenfläche wegen der für die Punktverpressung erforderlichen Vertiefungen kein durchgehend glatter Zylinder mehr ist, sodass die Anschlussscheiben nicht mehr an beliebiger Stelle des Vertikalstieles befestigt werden können.However, when used on cylindrically profiled vertical stems, as well as screws or rivets, the pressings have the disadvantage that the outer surface is no longer a smooth cylinder because of the depressions required for the point compression, so that the connection disks can no longer be fastened at any point of the vertical stalk.
Verbindungen wie die Verpressungen oder andere in die Fläche des Vertikalstiels hineingedrückte Verbindungen oder Nietköpfe oder Schraubenköpfe oder andere, aus der Fläche des Vertikalstieles herausragende Verbindungen sind auch dann von großem Nachteil, wenn sich die Stirnseiten der beiden Schenkel des gabelförmigen Rohrriegelanschlusses auf der Außenfläche des Vertikalstieles abstützen sollen, um die Übertragung eines Drehmomentes vom Vertikalstiel auf einen Rohrriegel zu ermöglichen und zwar aus folgendem Grund:
- Wenn ein Schenkel so dimensioniert ist, dass er mit seiner Stirnfläche auf dem Vertikalstiel aufliegt, unglücklicherweise jedoch auf eine Verbindung trifft, so findet er in diesem Bereich keine oder eine ungeeignete Auflage.
- If a leg is dimensioned so that it rests with its end face on the vertical handle, but unfortunately meets a connection, he finds in this area no or an inappropriate edition.
In diesem Fall erscheint es als eine sehr einfache Abhilfe, die jeweilige Anschlussscheibe auf dem Vertikalstiel soweit zu verschieben, dass weder die Anschlussscheibe noch die Stirnseiten der Schenkel des daran befestigten Rohrriegelanschlusses auf die Verbindungen treffen.In this case, it seems to be a very simple remedy to move the respective connection disk on the vertical stem so far that neither the connection disk nor the end faces of the legs of the pipe bolt connection attached to it hit the connections.
Im Interesse einer generellen Materialersparnis ist es jedoch wünschenswert, möglichst nahe zum oberen Ende eines jeden Vertikalstieles auch eine Anschlussscheibe zu befestigen, da andernfalls ein allzu langer Teil des Vertikalstiele in der obersten Gerüstebene nutzlos in den Raum hinein ragt, was in der Summe aller Vertikalstiele die Wirtschaftlichkeit beeinträchtigt.In the interest of a general material savings, however, it is desirable to attach as close to the upper end of each vertical stem and a connection plate, otherwise an all-too long part of the vertical stalks in the topmost scaffold level uselessly protrudes into the room, resulting in the sum of all vertical stems the Profitability impaired.
Auf diesem Hintergrund hat sich die Erfindung der Aufgabe gestellt, bei einem Modulgerüst, dessen Kupplungsprofile zur Verbindung zweier aneinander grenzender Vertikalstiele durch mit der Außenfläche nicht bündige Verbindungen gesichert sind, den Rohrriegelanschluss so an der Anschlussscheibe zu befestigen, dass ein Drehmoment vom Rohrriegel auf den Vertikalstiel übertragen werden kann.Against this background, the invention has set itself the task, in a modular scaffold, the coupling profiles are secured to connect two adjacent vertical stems by not flush with the outer surface compounds to attach the pipe lock connection to the connection plate that a torque from the pipe bolt on the vertical stem can be transferred.
Als Lösung lehrt die Erfindung, dass je ein Kupplungsprofil mit einem Vertikalstiel durch zwei oder mehr Verbindungen verbunden ist, die in eine erste Gruppe mit einem jeweils gleichen Abstand zum Ende des Vertikalstiels und eine Zweitgruppe mit einem jeweils gleichen, gegenüber der ersten Gruppe größeren Abstand zum Ende des Vertikalstiels aufgeteilt sind und eine Anschlussscheibe die Zweitgruppe zumindest teilweise überdeckt und die Stirnseiten der Schenkel des gabelförmigen Rohrriegelanschlusses außerhalb der ersten Gruppe der Punktverpressungen auf dem Vertikalstiel aufliegen.As a solution, the invention teaches that each coupling profile is connected to a vertical stem by two or more compounds in a first group with a respective same distance to the end of the vertical stem and a second group with a respective same, compared to the first group greater distance to Split at the end of the vertical stem and a connecting plate, the second group at least partially covered and rest the ends of the legs of the forked pipe bolt connection outside the first group of Punktverpressungen on the vertical stem.
Die Kernidee der Erfindung ist es, die beiden Schenkel des Rohrriegelanschlusses so zu gestalten und so auf dem Vertikalstiel anzuordnen, dass sie wie eine dreieckige Aussteifung in dem Gerüstverbund fungieren. Die Schenkel übernehmen also die Funktion eines Knotenbleches in einem Tragwerk.The core idea of the invention is to make the two legs of the pipe bolt connection in such a way and to arrange on the vertical handle that they act like a triangular stiffener in the framework composite. The legs thus assume the function of a gusset plate in a structure.
Bekanntlich ist ein Knotenblech ein dreieckiges, flächiges Element, das im Winkel zwischen zwei sich kreuzenden Stäben an zwei Kanten jeweils fest mit einem Stab verbunden ist. Bei einem stationären Tragwerk kann eine solche Verbindung z.B. sehr einfach durch eine Verschweißung hergestellt werden. Bei einem regelmäßig auf- und wieder abzubauenden Baugerüst muss jedoch eine dieser beiden Verbindungen durch eine schnell- und problemlos lösbare Verbindung gesetzt werden.As is known, a gusset plate is a triangular, flat element, which is in each case firmly connected to a bar at an angle between two intersecting bars at two edges. In a stationary structure, such a connection may e.g. be easily made by welding. In the case of a scaffolding that needs to be regularly erected and dismantled, however, one of these two connections must be set by means of a quick and easy detachable connection.
Beim erfindungsgemäßen Modulgerüst wird die Funktion eines Knotenbleches an der Verbindungsstelle von zwei Vertikalstielen und einem Rohrriegel durch die Schenkel des Rohrriegelanschluss übernommen. Die dauerhafte Verbindung zwischen den Schenkeln und dem Rohrriegel wird dadurch sichergestellt, dass der Rohrriegel an seinem Ende fest mit dem Mittelstück des Rohrriegelanschlusses verbunden ist, an welches die beiden Schenkel angeformt sind. Oderin anderer Formulierung - die beiden Schenkel sind zuerst miteinander verbunden und erst im weiteren Verlauf mit dem Rohrriegel. Oder in einer dritten Betrachtungsweise für den gleichen Zusammenhang: der Rohrriegel setzt sich in Bezug auf seine statische Wirksamkeit bis in das Mittelstück des Rohrriegelanschlusses hinein fort.In the module frame according to the invention, the function of a gusset plate at the junction of two vertical stems and a pipe bolt is taken over by the legs of the pipe bolt connection. The permanent connection between the legs and the pipe bolt is ensured by the fact that the pipe block is connected at its end fixed to the center piece of the pipe bolt connection, to which the two legs are integrally formed. Or in another formulation - the two legs are first connected to each other and only in the further course with the tube bolt. Or, in a third view, for the same context: the pipe bolt continues with respect to its static effectiveness into the center piece of the pipe bolt connection.
Die Verbindung der als Knotenblech fungierenden beiden Schenkel zum Rohrriegel ist also dauerhaft. Die Verbindung der beiden Schenkel zum Vertikalstiel hingegen muss lösbar sein, aber im aufgebauten Zustand trotzdem voll belastbar sein. Die Erfindung macht sich dafür zu nutze, dass zwei Teile, die nur aufeinander aufliegen, trotzdem eine Druckkraft übertragen können, sofern sie senkrecht zu der Fuge zwischen diesen beiden Teilen ausgerichtet ist. Dabei ist nur zu beachten, dass die Druckkraft keine Kraftkomponente enthält, die parallel zur Fuge verläuft und dadurch ein "Wegrutschen" der beiden Teile gegeneinander bewirkt.The connection of acting as a gusset plate two legs to the pipe bolt is therefore permanent. The connection of the two legs to the vertical stem, however, must be solvable, but still fully loaded in the assembled state. The invention makes up for it to take advantage of the fact that two parts, which rest only on each other, can still transmit a compressive force, as long as it is aligned perpendicular to the joint between these two parts. It should only be noted that the compressive force contains no force component that runs parallel to the joint and thereby causes a "slippage" of the two parts against each other.
Bei der Erfindung ist das "Wegrutschen" der beiden Schenkel gegenüber dem Vertikalstil durch den Keil ausgeschlossen, der durch die Öffnung in jedem Schenkel und durch die Randöffnung der Anschlussscheibe hindurch läuft und dadurch eine Entfernung des Rohrriegelanschlusses vom Vertikalstiel verhindert.In the invention, the "slipping out" of the two legs relative to the vertical style is precluded by the wedge passing through the opening in each leg and through the edge opening of the terminal disk, thereby preventing removal of the pipe bolt terminal from the vertical stem.
Der Keil kann jedoch nicht verhindern, dass sich der Rohrriegel und der Rohrriegelanschluss gegenüber dem Vertikalstiel etwas verschwenkt. Diese Verschwenkung mit anderen Maßnahmen zu verhindern, ist das wichtigste Anliegen der Erfindung, wozu die im Folgenden geschilderten Merkmale verhelfen:
- Es ist ein wesentliches Merkmal der Erfindung, dass sowohl der obere Schenkel des Rohrriegelanschlusses als auch der untere Schenkel des Rohrriegelanschlusses jeweils auf dem Vertikalstiel aufliegt.
- Wenn nun eine Kraft auf dem Rohrriegel einwirkt, die ihn nach oben schwenken möchte, so bildet sich dadurch in Bezug auf die Kante zwischen dem Mittelstück des Rohrriegelanschlusses und der Außenkante der Anschlussscheibe ein Drehmoment aus, dass den nach oben weisenden Schenkel des Rohrriegelanschlusses gegen den Vertikalstiel drückt. Auf den nach unten weisenden Schenkel des Rohrriegelanschlusses wird bei diesem Belastungsfall keine Kraft ausgeübt, da er ja nur auf dem Vertikalstiel aufliegt und nicht fest mit ihm verbunden ist.
- It is an essential feature of the invention that both the upper leg of the pipe bolt connection and the lower leg of the pipe bolt connection in each case rests on the vertical stem.
- Now, when a force acting on the pipe bolt that would like to pivot it up, so formed with respect to the edge between the center of the pipe bolt connection and the outer edge of the connection plate torque that the upwardly facing leg of the pipe bolt connection against the vertical stem suppressed. On the downwardly pointing legs of the pipe bolt connection no force is exercised in this load case, since he rests only on the vertical stem and is not firmly connected to him.
Der nach unten weisende Schenkel des Rohrriegelanschlusses wird erst dann belastet, wenn auf den Rohrriegel eine Kraft einwirkt, die ihn nach unten drücken möchte. Wie schon zuvor für den nach oben weisenden Schenkel beschrieben, bildet sich in diesem Fall eine Kraft, die den nach unten weisenden Schenkel gegen den Vertikalstiel drückt. In diesem Belastungsfall ist der nach oben weisende Schenkel des Rohrriegelanschlusses entlastet.The downwardly pointing leg of the pipe bolt connection is loaded only when a force acts on the pipe bolt, which wants to push him down. As already described above for the upward-pointing leg, in this case, a force is formed which presses the downwardly pointing leg against the vertical stem. In this load case, the upward-pointing leg of the pipe bolt connection is relieved.
Aus dem zuvor Gesagten ergibt sich, dass die beiden Schenkel eines Rohrriegelanschlusses gemeinsam die Funktion eines Knotenbleches in dem Tragwerk übernehmen, dass aus den Vertikalstielen und den Rohrriegeln gebildet wird.From the above, it follows that the two legs of a pipe bolt connection together assume the function of a gusset plate in the supporting structure that is formed from the vertical stems and the pipe bolts.
Damit sie dies tun können, ist es jedoch eine unerlässliche Voraussetzung, dass die Stirnseiten nicht nur eines, sondern beider Schenkel des Rohrriegelanschlusses stets auf dem Vertikalstiel aufliegen. Das ist im Bereich der obersten Anschlussscheibe jedoch dann nicht der Fall, wenn die Stirnseite des Schenkels auf eine mit der Fläche des Vertikalstiels nicht fluchtende Verbindung trifft. Wenn die Verbindung eine Verpressung mit einer Vertiefung ist, findet die Stirnseite unter Umständen keine Auflage, sondern "hängt in der Luft." Wenn die Verbindung eine Niete oder eine Schraube ist und die Stirnseite eines Schenkels auf deren Kopf aufliegt, dann findet der andere Schenkel des Rohrriegelanschlusses keinen Halt und "hängt in der Luft." Weil dann einer der beiden Schenkel keinen Halt findet, kann der Rohrriegelanschlusses nicht als Knotenblech wirken.However, in order for them to do so, it is essential that the faces of not one, but both legs of the pipe bolt connection always rest on the vertical stem. However, this is not the case in the area of the top connecting disk when the end face of the leg meets a connection which is not aligned with the surface of the vertical stem. If the connection is a depression with a depression, the front side may find no support, but "hangs in the air." If the connection is a rivet or a screw and the end of a leg rests on the head, then the other leg of the pipe bolt connection does not stop and "hangs in the air." Because then one of the two legs no support, the pipe bolt connection can not act as a gusset plate.
Die Verbindungen sind jedoch unerlässlich. Wenigstens eine Verbindung zwischen dem Vertikalstiel und dem Kupplungsprofil reicht aus, um das Kupplungsprofil am Abgleiten in Längsrichtung des Vertikalstiels zu hindern.However, the connections are essential. At least one connection between the vertical stem and the coupling profile is sufficient to prevent the coupling profile from slipping in the longitudinal direction of the vertical stem.
Da das Kupplungsprofil ein seitliches Spiel gegenüber dem Vertikalstiel haben muss, um darin eingesteckt werden zu können, würde eine einzige, punktförmige Verbindung wie der Drehpunkt eines Scharniers oder einer anderen gelenkigen Verbindung wirken. Eine solche Gelenkigkeit ist für eine maximale Steifigkeit des Modulgerüstes jedoch unbedingt zu vermeiden. Deshalb sieht die Erfindung zwei in Längsrichtung zu einander beabstandete Verbindungen vor.Since the coupling profile must have a lateral clearance relative to the vertical stem in order to be inserted therein, a single, point-like connection would act like the pivot point of a hinge or other articulated connection. However, such a flexibility is essential for maximum rigidity of the modular framework to avoid. Therefore, the invention provides two longitudinally spaced connections.
Da es vorteilhaft ist, anstelle einer einzigen mehrere Verbindungen einzubringen, werden alle Verbindungen in zwei Gruppen aufgeteilt. Eine erste Gruppe weist einen kleinen und für jede einzelne Verbindung gleichen Abstand zum Ende des Vertikalstieles auf. Die Zweitgruppe der Verbindungen weist wiederum den jeweils gleichen, jedoch deutlich größeren Abstand zum Ende des Vertikalstieles auf.Since it is advantageous to introduce multiple connections instead of a single one, all connections are split into two groups. A first group has a small and equal distance for each connection to the end of the vertical stem. The second group of compounds in turn has the same, but significantly greater distance from the end of the vertical stem.
Diese Anzahl und diese Anordnung von Verbindungen gewährleistet im Verhältnis zur Anzahl der Verbindungen die beste Stabilität der Verbindung zwischen Vertikalstiel und Kupplungsprofil.This number and this arrangement of connections ensures the best stability of the connection between vertical stem and coupling profile in relation to the number of connections.
Dabei nennt die Erfindung mehrere alternative Ausführungsformen für die Verbindung von Vertikalstiel und Kupplungsprofil.The invention calls several alternative embodiments for the connection of vertical stem and coupling profile.
Die Verbindungen können in die Wand des Vertikalstiels eingedrückte, nach innen hin weisende Vertiefungen sind, die sich auch in die Wandung des Kupplungsprofils hineingedrückt haben.The compounds can be in the wall of the vertical stem depressed, inward-facing depressions, which have also pressed into the wall of the coupling profile.
Dabei können diese Vertiefungen verschiedene Formen aufweisen. Sie können z.B. wie ein Graben oder eine Rinne oder ein Hohlkegel oder ein Kugelsegment oder ein Ringsegment geformt sind. Die Form eines Hohlkegels oder ein Kugelsegmentes oder eine andere, rotationssymmetrische Form wird auch als Punktverpressung bezeichnet, weil das formende Werkzeug nur auf einen einzigen Punkt angesetzt wird.These recesses may have different shapes. For example, they may be shaped like a trench or a gutter or a hollow cone or a spherical segment or a ring segment. The shape of a hollow cone or a spherical segment or another, rotationally symmetrical shape is also referred to as point compression, because the forming tool is applied only to a single point.
Alternativ kann auch wenigstens eine Verbindung eine Niete oder eine Schraube oder eine Punktverschweißung sein. Wenn eine Niete oder eine Schraube in Bohrungen des Vertikalstiels und des darin eingesteckten Kupplungsprofils eingeschraubt oder eingesteckt werden, dann ragt ihr Kopf über die Fläche des Vertikalstiels hinaus. Wenn die Mittenöffnung der Anschlussscheiben an dieser Stelle mit einer entsprechenden Kerbe vergrößert ist oder der Durchmesser der Mittenöffnung im Ganzen etwas vergrößert ist, so lassen sich die Anschlussscheiben trotzdem über den Vertikalstiel schieben. ist.Alternatively, at least one joint may be a rivet or a screw or a spot weld. When a rivet or a screw is screwed or inserted into holes in the vertical stem and the coupling profile inserted therein, its head protrudes beyond the surface of the vertical stem. If the center opening of the connection discs is enlarged at this point with a corresponding notch or the diameter of the center opening as a whole is slightly larger, so the connection plates can still slide over the vertical handle. is.
Wenn jedoch eine Stirnseite des Rohrriegelanschlusses auf den Kopf einer Schraube oder eines Niets treffen würde, dann fände sie keine ganzflächige Auflage mehr und die Übertragung des von Rohrriegel erzeugten Drehmomentes wäre nicht oder nur teilweise möglich.However, if a front side of the pipe bolt connection would hit the head of a screw or a rivet, then they would find no full-surface support more and the transmission of the torque generated by tube bolt would not or only partially possible.
Es ist ein Verdienst der Erfindung, die Stirnseite der Schenkel des Rohrriegelanschlusses und die Verbindungen so anzuordnen, dass sie in keinem Fall aufeinander treffen. Die Erfindung stellt also sicher, dass eine Stirnseite stets außerhalb der Verbindungen auf der Vertikalstange aufliegt und dadurch einen ausreichenden Halt findet.It is a merit of the invention, the front side of the legs of the pipe bolt connection and the connections to be arranged so that they do not meet each other. The invention thus ensures that one end face always rests outside of the connections on the vertical rod and thereby finds sufficient support.
Dazu sieht die Erfindung vor, dass die Zweitgruppe der Verbindungen von der jeweils obersten Anschlussscheibe jedes Vertikalstiels zumindest teilweise überdeckt wird. Dadurch ist sichergestellt, dass die Stirnseiten der Schenkel des Rohrriegelanschlusses nicht auf diese Verbindungen treffen können.For this purpose, the invention provides that the second group of connections is at least partially covered by the respective uppermost connecting plate of each vertical stem. This ensures that the ends of the legs of the pipe bolt connection can not meet these connections.
Natürlich dürfen die Stirnseiten auch nicht auf die Verbindungen der Erstgruppe treffen. Deshalb muss der Abstand zwischen der ersten Gruppe der Verbindungen und der Anschlussscheibe entweder größer oder kleiner sein als der Abstand der Stirnseite des nach oben weisenden Schenkels des Rohrriegelanschlusses von der Anschlussscheibe. Auf diese Weis entsteht eine feste Einspannung der Schenkel des Rohrriegelanschlusses zwischen dem Vertikalstiel und einem daran befestigten Rohrriegel.Of course, the front pages must not hit the connections of the first group. Therefore, the distance between the first group of connections and the connection plate must be either greater or smaller than the distance of the front side of the upwardly pointing leg of the pipe bolt connection from the connection plate. In this way, a firm clamping of the legs of the pipe bolt connection between the vertical stem and a pipe bolt attached thereto.
In der einfachsten Ausführungsform eines erfindungsgemäßen Modulgerüstes ist das Kupplungsprofil - wie bereits erwähnt - nur mittels zweier, zueinander in Längsrichtung beabstandeten Verbindungen mit dem Vertikalstiel verbunden.In the simplest embodiment of a modular scaffolding according to the invention - as already mentioned - the coupling profile is connected only by means of two, mutually longitudinally spaced connections with the vertical stem.
Für eine größere Sicherheit und größere Belastbarkeit bei der Montage ist es jedoch Vorteilhaft, eine größere Anzahl von Verbindungen einzubringen. Von diesen sollten sich vorzugsweise je zwei in Bezug auf die Mittelachse von Vertikalstiel und Kupplungsprofil einander gegenüber liegen. Das hat den Vorteil einer besonders hohen Stabilität und bei der Ausführung der Verbindung als eine Punktverpressung den weiteren Vorteil, dass diese beiden Punktverpressungen durch ein zangenartiges Werkzeug eingepresst werden können, dass den Vertikalstiel von zwei gegenüberliegenden Seiten her umfasst.However, for greater safety and greater loading capacity during assembly, it is advantageous to bring in a larger number of compounds. Of these, preferably two each should be opposite each other with respect to the center axis of vertical stem and coupling profile. This has the advantage of a particularly high stability and in the execution of the compound as a point compression the further advantage that these two Punktverpressungen can be pressed by a forceps-like tool that includes the vertical stem from two opposite sides.
Für ein erfindungsgemäßes Modulgerüst sind noch zahlreiche weitere Ausführungsvarianten sinnvoll. In der Praxis werden die horizontalen Rohrriegel zumeist in einem rechtwinkligen Raster angeordnet, bilden also einen Winkel von 90 Grad zueinander. Für das Einrüsten von unregelmäßig geformten Wänden können jedoch auch andere Winkel erforderlich sein. Dafür schlägt die Erfindung vor, dass die Randöffnungen in den Anschlussscheiben breiter sind als der Keil. Dann kann der Rohrriegelanschluss in Bezug auf die Längsachse der Vertikalprofile innerhalb eines bestimmten Winkelbereiches mit einem beliebig wählbaren Winkel mit der Anschlussscheibe verkeilt werden.For a modular scaffold according to the invention, numerous other variants are still useful. In practice, the horizontal pipe bolts are usually arranged in a rectangular grid, thus forming an angle of 90 degrees to each other. However, other angles may be required for the incorporation of irregularly shaped walls. For this, the invention proposes that the edge openings in the connection plates are wider than the wedge. Then, the pipe bolt connection can be wedged with respect to the longitudinal axis of the vertical profiles within a certain angular range with an arbitrary angle with the connection disk.
Als Auflage der Stirnseiten der beiden Schenkel des Rohrriegelanschlusses auf dem Vertikalstil reicht theoretisch bereits ein Punkt aus. Weil eine derartig kleine Auflagefläche jedoch einem erhöhten Verschleiß ausgesetzt ist, bevorzugt die Erfindung eine möglichst großflächige Auflage. Idealer Weise ist die Stirnseite jedes Schenkels komplementär zur Außenfläche des Vertikalstieles geformt auf der sie aufliegt. Wenn der Vertikalstiel zum Beispiel zylindrisch geformt ist, dann sollte die Stirnseite ein dazu komplementärer Hohlzylinder sein.As a support of the end faces of the two legs of the pipe bolt connection on the vertical style theoretically enough already a point. However, since such a small contact surface is exposed to increased wear, the invention prefers a large-area support. Ideally, the face of each leg is complementary to the outer surface of the vertical stem formed on which it rests. For example, if the vertical stem is cylindrically shaped, then the face should be a complementary hollow cylinder.
Der Rohrriegelanschluss mit seinen Schenkeln und deren Stirnseiten ist ein sehr wichtiges Bauteil eines erfindungsgemäßen Modulgerüstes. Seine recht komplexe Form muss an die Anschlussscheibe, den Keil, den Rohrriegel und das Profil der Vertikalstiele angepasst sein. Dazu müssen die jeweiligen Berührungsflächen mit einer gewissen Mindestgenauigkeit gefertigt werden.The pipe bolt connection with its legs and their end faces is a very important component of a modular scaffolding according to the invention. Its rather complex shape has to be adapted to the connecting plate, the wedge, the tube bar and the profile of the vertical handles. For this purpose, the respective contact surfaces must be made with a certain minimum accuracy.
Da der Rohrriegelanschluss Kräften stand halten muss, die im Verhältnis zu seiner Größe relativ hoch sind, wird er in der Praxis fast ausschließlich aus Metall bestehen. Zur Herstellung solcher Teile ist auf aktuellem Stand der Technik der Metallguss bekannt und bewährt.Since the pipe bolt connection must withstand forces which are relatively high in relation to its size, in practice it will consist almost exclusively of metal. To produce such parts of the state of the art of metal casting is known and proven.
Alternativ schlägt die Erfindung eine Formung des Rohrriegelanschlusses aus Stahlblech vor, was für Verbindungselemente von Baugerüsten ebenfalls bekannt und bewährt ist. Vorgeschlagen wird, den Rohrriegelanschluss aus einem länglichen Rechteck aus Stahlblech zu formen und zu biegen.Alternatively, the invention proposes a shaping of the pipe bolt connection made of sheet steel, which is also known and proven for fasteners of scaffolding. It is proposed to form and bend the pipe bolt connection from an elongated rectangle made of sheet steel.
Der Rohling muss in der Mitte mit einem in Längsrichtung verlaufenden Schlitz versehen werden, der später den Schlitz zwischen den beiden Schenkeln bildet, welcher auf die Anschlussscheibe aufgeschoben wird. Ober- und unterhalb der Mitte dieses Schlitzes müssen die beiden Stirnseiten der Schenkel ausgeformt werden. Für kreisrunde Vertikalstiele müssen die Stirnseiten z.B. dazu komplementär als Hohlzylinder ausgeformt werden.The blank must be provided in the middle with a longitudinally extending slot, which later forms the slot between the two legs, which is pushed onto the connecting plate. Above and below the middle of this slot, the two end faces of the legs must be formed. For circular Vertical handles, the end faces eg complementary to be formed as a hollow cylinder.
Die beiden Enden des länglichen Stahlbleches werden jeweils zu einem in Längsrichtung verlaufendem Profil geformt, das komplementär zum Innenraum des Rohrriegels ist. Sollte der Rohrriegel ebenfalls einen kreisförmigen Innenraum aufweisen, so müssen die beiden Enden des länglichen Stahlbleches jeweils zu einer Rinne mit halbkreisförmigem Querschnitt geformt werden.The two ends of the elongated steel sheet are each formed into a longitudinally extending profile which is complementary to the interior of the pipe bolt. If the pipe bolt also have a circular interior, the two ends of the elongated steel sheet must each be formed into a channel with a semicircular cross section.
Dann werden im letzten Schritt diese beiden rinnenartig profilierten Abschnitte an der Grenze zu den in der Mitte des Stahlbleches bereits zur späteren Stirnseite umgeformten Bereichen soweit abgewinkelt, dass sich die Kanten der halbkreisförmig profilierten Abschnitte gegenseitig berühren. Die beiden rinnenartigen Abschnitte bilden dann gemeinsam ein Rohrstück, das in den Rohrriegel hinein geschoben werden kann.Then, in the last step, these two channel-like profiled sections are angled far enough at the border to the areas already formed in the middle of the steel sheet to the later end face that the edges of the semicircular profiled sections contact each other. The two channel-like sections then together form a piece of pipe which can be pushed into the pipe block.
Ein Vorteil eines auf diese Weise geformten Rohrriegelanschlusses ist, dass die beiden Öffnungen in den Schenkeln zum Einstecken des Keils nicht besonders hergestellt werden müssen, sondern sich zwischen den beiden U-förmig abgewinkelten Seitenteilen ergeben. Selbstverständlich muss die Form des Keils dann auf diese Form angepasst werden.An advantage of a pipe bolt connection formed in this way is that the two openings in the legs for inserting the wedge do not need to be specially made, but result between the two U-shaped angled side parts. Of course, the shape of the wedge then has to be adapted to this shape.
In einer weiteren, sehr sinnvollen Ausführungsvariante eines erfindungsgemäßen Modulgerüstes kann beim Aufbau des Gerüstes eine "vorlaufende Brüstung" gebildet werden, d.h., dass beim Aufbau einer Gerüstebene wird die Brüstung für die nächst höhere Ebene schon von der darunter liegenden Ebene aus errichtet. Wenn das Aufbaupersonal den jeweils höchsten Gerüstbelag betritt, um auf dieser Ebene das Gerüst zu vervollständigen, so ist die erforderliche Brüstung bereits vorhanden.In a further, very meaningful embodiment variant of a modular scaffolding according to the invention, a "leading parapet" can be formed during the construction of the scaffold, ie, when building a scaffold plane, the parapet for the next higher level is already erected from the level below. When the construction staff enters the highest scaffolding level at this level To complete the scaffolding, the required parapet is already present.
Dazu schlägt die Erfindung vor, dass das Modulgerüst aus standardisierten, identischen Vertikalstielen besteht. Die Vertikalstiele der untersten Gerüstebene ruhen auf Vertikalanfangsstücken, von denen die äußeren um ein für eine Brüstungshöhe sinnvolles Maß verlängert sind und deshalb weiter nach oben ragen. Dazu sind die äußeren Vertikalanfangsstücke entweder entsprechend lang ausgebildet oder mit einem Vertikalstiel von entsprechender Abmessung verlängert.For this purpose, the invention proposes that the module framework consists of standardized, identical vertical stems. The vertical stems of the lowest level of the scaffolding rest on vertical starting pieces, of which the outer ones are extended by a dimension which makes sense for a parapet height and therefore continue to protrude upwards. For this purpose, the outer vertical starting pieces are either designed to be correspondingly long or lengthened with a vertical stem of corresponding dimension.
Dann wird auf jedes, der Wand nahestehendes, kurzes Vertikalanfangsstück jeweils ein einzelner standardisierter Vertikalstiel ohne weitere Zubehörteile aufgesteckt. Auf die beiden äußeren, höheren und verlängerten Vertikalanfangsstücke wird je ein standardmäßiger Vertikalstiel eingesteckt, an dessen oberste Anschlussscheibe zusätzlich ein teleskopisch in seiner Länge veränderbarer Brüstungsriegel mit einem ringsegmentförmigen Haken oder einer Öse verschwenkbar eingehängt ist. Wenn ein Monteur diesen Vertikalstiel in ein längeres Vertikalanfangsstück einsteckt, dann hängt der Brüstungsriegel seitlich an dem Vertikalstiel herunter.Then, in each case, a single standardized vertical handle is plugged without any additional accessories onto each short vertical starting piece close to the wall. On the two outer, higher and longer vertical starter pieces each a standard vertical stem is inserted, at the top of the terminal plate in addition a telescopically adjustable in length parapet with a ring-shaped hook or eye is pivotally mounted. When a fitter inserts this vertical stem into a longer vertical hub, the parapet bar hangs down the side of the vertical stem.
Wenn beim Aufrichten der beiden Elemente das Pendeln des Brüstungsriegels stört, dann kann der Brüstungsriegel mittels eines H-förmigen Kunststoffclips vorübergehend mit dem Vertikalstiel verbunden werden. Dieser H-förmige Clip ist mit einer Öffnung auf den Vertikalstiel aufsteckbar und nimmt mit seiner anderen Öffnung den Brüstungsriegel auf.If, when erecting the two elements, the oscillation of the balustrade bar interferes, then the balustrade can be temporarily connected to the vertical stem by means of an H-shaped plastic clip. This H-shaped clip can be attached with an opening on the vertical handle and takes on the parapet with its other opening.
Sobald der erste Vertikalstiel eingesteckt ist, wird der Brüstungsriegel mit seinem anderen Ende ebenfalls verschwenkbar in die oberste Anschlussscheibe des nächsten Vertikalstiels eingehängt. Falls noch ein weiterer Gerüstabschnitt errichtet werden soll, wird in diese oberste Anschlussscheibe noch ein weiterer Brüstungsriegel eingehängt, der später die Brüstung für den nächsten Gerüstabschnitt bildet.As soon as the first vertical handle is inserted, the parapet latch is also hinged with its other end pivotally in the uppermost connecting plate of the next vertical handle. If still another scaffolding section is to be erected, another parapet is hung in this top connecting plate, which later forms the parapet for the next scaffolding section.
Nach dem Einhängen des einen oder beider Brüstungsriegel, wird der Vertikalstiel angehoben und auf das nächste, höhere Vertikalanfangsstück aufgesetzt. Dadurch bildet sich aus dem ersten, teleskopisch in seiner Länge veränderbaren Brüstungsriegel die Brüstung der nächsten Gerüstebene bereits sehr frühzeitig aus.After attaching the one or both parapet, the vertical stem is raised and placed on the next, higher vertical starting piece. As a result, the parapet of the next scaffold level is formed very early from the first, telescopically adjustable in its length balustrade.
Als nächster Schritt werden die vier hochragenden Vertikalstiele durch vier Rohrriegel miteinander verbunden. Auf dieses Geviert aus Rohrriegeln wird dann ein plattenförmiger Gerüstbelag aufgebracht. Wenn dieser Gerüstbelag vom Montagepersonal betreten wird, so findet es bereits eine ordnungsgemäße Absicherung durch den Brüstungsriegel vor. Dieses Verfahren wird "vorlaufende" Brüstung genannt, weil die Errichtung der Brüstung zeitlich vor dem ersten Betreten der Gerüstebene erfolgt.As a next step, the four towering vertical stems are connected by four pipe bolts. On this square of Rohrriegeln then a plate-shaped scaffold coating is applied. When this scaffolding is entered by the installation personnel, it already finds a proper protection by the parapet. This method is called "leading" parapet because the parapet is set up before the first step on the scaffolding.
Der entscheidende Vorteil ist, dass damit die Sicherheit des Bedienpersonals deutlich verbessert wird und den diesbezüglichen Vorschriften Genüge geleistet wird. Zu beachten ist, dass anstelle eines standardmäßigen Rohrriegels mit standardmäßigen Rohrriegelanschlüssen ein spezieller, teleskopisch in seiner Länge veränderbarer Brüstungsriegel verwendet werden muss, der zum Anschluss an die Anschlussscheibe an beiden Enden mit einem verschwenkbaren Verbindungselement versehen sein muss. Geeignet ist z.B. ein ringsegmentförmiger Haken oder eine Öse, die in eine Randöffnung einer Anschlussscheibe eingehängt und darin verschwenkt werden kann.The decisive advantage is that it significantly improves the safety of the operating personnel and complies with the relevant regulations. It should be noted that instead of a standard pipe bolt with standard pipe bolt connections, a special, telescopically adjustable in length parapet must be used, which must be provided for connection to the connection plate at both ends with a pivotable connection element. It is suitable, e.g. a ring-segment-shaped hook or eye, which can be suspended in an edge opening of a connection plate and pivoted therein.
Als eine andere, vorteilhaften Variante wird im Folgenden beschrieben, wie eine zur Verbindung durch Punktverpressung erzeugte, ringsegmentförmige Vertiefung, die von der Anschlussscheibe größtenteils überdeckt wird, zusätzlich zur Befestigung der Anschlussscheibe auf dem Vertikalstiel genutzt werden kann.As another advantageous variant, the following describes how a connection created by means of point compression, ring-segment-shaped depression, which is largely covered by the connection plate, in addition to the attachment of the connection plate can be used on the vertical stem.
Dazu wird die Mittenöffnung der Anschlussscheibe auf ihrem Umfang mit kleinen Kerben versehen, die gegenüber den Vertiefungen der Punktverpressung angeordnet sind und etwa das gleiche Profil wie diese Vertiefungen aufweisen. Dadurch entsteht eine Öffnung, die zum einen Teil von der Vertiefung der Punktverpressung und zum anderen Teil von der Kerbe im Rand der Mittenöffnung gebildet wird.For this purpose, the center opening of the connection plate is provided on its circumference with small notches, which are arranged opposite the depressions of the point compression and have approximately the same profile as these depressions. This results in an opening which is formed on the one hand part of the recess of the Punktverpressung and the other part of the notch in the edge of the central opening.
In diese Öffnung wird ein Segment eines gedachten Ringes hineingeschoben, dessen Profil der Öffnung zwischen Anschlussscheibe und Vertikalstiel entspricht und dessen Radius komplementär zur Form der Vertiefung in Längsrichtung des Vertikalstieles ist. Das Ringsegment bildet also einen gekrümmten Bolzen, der sich an die Form der Vertiefung anschmiegt und in etwa die Form einer Banane hat. Durch seine Krümmung blockiert das Ringsegment jegliche Bewegung der Anschlussscheibe gegenüber dem Vertikalstiel. Dadurch wird die Verschweißung oder andere Verbindung der Anschlussscheibe mit dem Vertikalstiel entweder zusätzlich unterstützt oder sogar ersetzt.In this opening, a segment of an imaginary ring is pushed in, the profile of which corresponds to the opening between the connecting disk and vertical stem and whose radius is complementary to the shape of the depression in the longitudinal direction of the vertical stem. The ring segment thus forms a curved bolt, which conforms to the shape of the depression and has approximately the shape of a banana. Due to its curvature, the ring segment blocks any movement of the connection disc relative to the vertical stem. As a result, the welding or other connection of the connection plate with the vertical stem is either additionally supported or even replaced.
Damit das ringsegmentförmige Verbindungselement zwischen Anschlussscheibe und Vertikalstiel bei Erschütterungen nicht wieder nach unten herausfällt, kann es mit Wülsten und Auskragungen versehen werden, die über sein Profil und damit über das Profil der Öffnung zwischen Anschlussscheibe und Vertikalstiel herausragen und dadurch das Verbindungselement in seiner Position sichern.Thus, the ring-segment-shaped connecting element between the connection plate and vertical stem does not fall down again when shaken, it can be provided with beads and projections which protrude beyond its profile and thus on the profile of the opening between the connecting plate and vertical stem and thereby secure the connecting element in position.
Zum Eindrücken oder Einschlagen des Verbindungselementes ist bevorzugt ein Impuls geeignet, der sich auf einem Kreisbogen bewegt, der dem vollständigen, gedachten Ring entspricht, aus welchem das gekrümmte Verbindungselement gedanklich herausgeschnitten worden ist. Deshalb schlägt die Erfindung zum Eintreiben des Verbindungselements einen Schwenkarm vor, dessen Länge dem vorgenannten Radius entspricht. Mit einem derartigen Schwenkarm zur Führung der Verbindungselemente ist auch eine Automatisierung des Einbringens möglich.For impressing or hammering the connecting element, a pulse is preferably suitable, which moves on a circular arc, which corresponds to the complete imaginary ring, from which the curved connecting element has been mentally cut out. Therefore, the invention proposes for driving the connecting element before a swivel arm whose length corresponds to the aforementioned radius. With such a pivoting arm for guiding the connecting elements and an automation of the introduction is possible.
Im Folgenden sollen weitere Einzelheiten und Merkmale der Erfindung anhand eines Beispiels näher erläutert werden. Dieses soll die Erfindung jedoch nicht einschränken, sondern nur erläutern. Es zeigt in schematischer Darstellung;
- Figur 1a
- Verbindung zwischen Vertikalstiel. Anschlussscheibe und Rohrriegel gemäß dem Stand der Technik.
- Figur 1b
Ausschnitt aus Figur 1 - Figur 2a
- wie
Figur 1a , jedoch erfindungsgemäß - Figur 2b
- wie
Figur 1b , jedoch erfindungsgemäß - Figur 3a
- Stirnseite eines Modulgerüst mit erfindungsgemäßen Verbindungen und "voreilender Brüstung".
- Figur 3b
- Außenseite des Modulgerüst gemäß
Figur 3a
- FIG. 1a
- Connection between vertical stem. Connecting disk and pipe block according to the prior art.
- FIG. 1b
- Extract from
FIG. 1 - FIG. 2a
- as
FIG. 1a but according to the invention - FIG. 2b
- as
FIG. 1b but according to the invention - FIG. 3a
- Front side of a modular framework with connections according to the invention and "leading parapet".
- FIG. 3b
- Outside of the module framework according to
FIG. 3a
Die Figuren zeigen im Einzelnen:
In
In
In
Durch Öffnungen in den beiden Schenkeln 41 ist ein Keil 6 geführt, der - was in
In
In den
In der
In
In den
Dargestellt wird die besondere Ausführungsform mit einer "voreilenden Brüstung". In
In
In den
In den
Wenn dieser weitere Vertikalstiel 1 angehoben wird, dann verkürzt sich durch das Teleskop der Brüstungsriegel 52 immer weiter, bis er beim Einsetzen des zweiten Vertikalstieles 1 die gleiche Länge erreicht, wie die Rohrriegel 5, die in ihrer Länge nicht veränderbar sind.If this further
- 11
- Vertikalstiel, vertikale Teile des GerüstesVertical stem, vertical parts of the framework
- 1111
-
Verbindung am Vertikalstiel 1, z.B. PunktverpressungConnection at the
vertical stem 1, e.g. Punktverpressung - 11 a11 a
- erste Gruppe der Verbindungen 11first group of compounds 11
- 11 b11 b
- Zweitgruppe der Verbindungen 11Second group of compounds 11
- 22
-
Kupplungsprofil, in Vertikalstiel 1 eingesteckt u. verbunden durch Verbindung 11Coupling profile, inserted in
vertical handle 1 u. connected by connection 11 - 33
-
Anschlussscheibe auf Vertikalstiel 1Connecting disk on
vertical handle 1 - 3131
-
Mittenöffnung der Anschlussscheibe 3,komplementär zum Vertikalprofil 1Center opening of the
connection plate 3, complementary to the vertical profile. 1 - 3232
-
Randöffnung am Rand der Anschlussscheibe 3Edge opening at the edge of the
connection plate 3 - 44
-
Rohrriegelanschluss, verbindet Anschlussscheibe 3 mit Rohrriegel 5Pipe bolt connection, connecting connecting
disk 3 withpipe bolt 5 - 4141
-
Schenkel des Rohrriegelanschlusses 4Legs of the
pipe bolt connection 4 - 4242
- Stirnseite eines Schenkels 41Front side of a leg 41
- 4343
-
Mittelstück des Rohrriegelanschlusses 4Center piece of the
pipe bolt connection 4 - 55
- Rohrriegel, horizontale Teile des GerüstesPipe bars, horizontal parts of the scaffold
- 5151
- U-Riegel, horizontales Teil des GerüstesU-bolt, horizontal part of the scaffold
- 5252
- Brüstungsriegel, teleskopisch verlängerbarParapet, extendable telescopically
- 66
- Keil, in Schenkel 41 und Randöffnung 35 eingestecktWedge, inserted in leg 41 and edge opening 35
- 77
- VertikalanfangsstückVertical initial part
- 7171
- verlängertes Vertikalanfangsstückextended vertical starting piece
- 88th
- Gerüstbelagscaffolding platform
Claims (17)
- Modular scaffold, consisting of- at least one elongated vertical paste (1) comprising a metal tube or another hollow profile, into the end of which a hollow coupling profile (2) is inserted,- of which the outer surface lies at least partly against the inner surface of the vertical post (1)- which is connected to the vertical post (1) by means of connectors (11), the connector (11) interrupting the continuous surface of the vertical post (1) and
on each vertical post (1), at least one disk-shaped connection disk (3) is pushed on, via a centre opening (31), which is located in its centre, and is fastened, and- the two large disk faces are in each case enclosed by the two legs (41) of at least one approximately fork-shaped tubular cross-bar connection (4), which is connected to an approximately horizontally extending tubular crossbar (5), and- a key (6) in each case and- is passed through one key opening (42) in each case in the legs (41), as well as- through one edge opening (32) in each case in the connection disks (3),- one coupling profile (2) in each case is connected to a vertical post (1) by means of two or more connectors (11), which are subdivided into- a first group (11 a) with the same distance in each case from the end of the vertical post (1) and- a second group (11b) with the same distance in each case from the end of the vertical post (1), which is greater than in the case of the first group,characterised in that- a connection disk (3) at least partly covers the second group (11 b) and- the end faces (42) of the legs (41) of the fork-shaped tubular cross-bar connection (4) lie, outside the first group (11a) of connectors (11), on the vertical post (1). - Modular scaffold according to claim 1, characterised in that the connectors (11) are inwardly facing depressions, which are pressed into the wall of the vertical post (1) and have also been pressed into the wall of the coupling profile (2).
- Modular scaffold according to one of the preceding claims, characterised in that the depressions are formed as- a trench or- a channel or- a hollow cone or- a spherical segment or- an annular segment.
- Modular scaffold according to one of the preceding claims, characterised in that at least one connector (11) is- a rivet or- a screw or- a spot weld.
- Modular scaffold according to one of the preceding claims, characterised in that two connectors (11) in each case lie opposite one another with respect to the centre axes of the vertical post (1) and coupling profile (2).
- Modular scaffold according to one of the preceding claims, characterised in that the edge openings (32) are broader than the key (6) in the direction of the periphery of the connection disks (3), as a result of which each tubular crossbar connection (4) can be fastened at a particular angular range of the vertical post (1).
- Modular scaffold according to one of the preceding claims, characterised in that the end faces (42) of the two legs (41) of the tubular crossbar connection (4) are shaped so as to be complementary to the outer surface of the vertical post (1) on which they lie..
- Modular scaffold according to one of the preceding claims, characterised in that the outer surface of the vertical post (1) is a cylinder and the end face (42) of the legs (41) of the tubular crossbar connectors (4) is a hollow cylinder that is complementary thereto.
- Modular scaffold according to one of the preceding claims, characterised in that the tubular crossbar connection (4) is formed and bent from an elongated rectangle of sheet steel- which has a slit that extends centrally in the longitudinal direction and- the two end faces (42) of the legs (41) are developed above and below the centre of this slit and- both ends of the elongated sheet steel are in each case formed into a profile that runs in the longitudinal direction and is complementary to the interior space of the connecting tubular crossbar (5) and- these partly profiled sections are angled, at the edges to the two end faces (42), are angled to the extent that the edges of the profiled sections are in mutual contact.
- Modular scaffold according to one of the preceding claims,
characterised in that it consists of standardized identical vertical posts (1) and the vertical posts (1) of the lowermost scaffold level rest on vertical starting elements (7), of which the outermost, extended vertical starting elements (71) project upward to an extent that is suitable for a parapet height. - Modular scaffold according to claim 10, characterised in that,
into an edge opening (32) of the uppermost connection disk (3) of a vertical post (3) a parapet crossbar (52), which is telescopically variable in its length, is pivotably mounted with an annular segment-shaped hook or an eye or another connecting element, and with its other end is also fastened in an edge opening (32) of the topmost connection disk (3) of a further vertical post (1), which is adjacent to the first vertical post (1). - Modular scaffold according to claim 3, characterised in that- the surface of at least one depression, which serves as connector (11) is shaped so as to be at least partly complementary to a ring, of which the longitudinal axis extends perpendicular to the vertical post and- at the centre opening (31) of the connection disk (3), notches, which are also complementary in shape to the notional ring, are also introduced in those regions that are located opposite the depressions, and- between the depression and notches, a real segment of the notional ring is inserted as a connecting element, which lies both on the surface of the depression and on the surface of the notch.
- Modular scaffold according to claim 12, characterised in that the connecting element, at its upper edge, has- beads or- projections
that extend beyond the profile of the notional ring. - Method for automated equipping of a vertical post (1) with connection disks (3) according to claims 12 or 13, characterised in that- a connection disk (3) is pushed on a vertical post (1) until it partly covers a second group (11 b) of annular-segment-shaped depressions and then- a pivot arm, the length of which corresponds to the radius of the notional ring, receives a connecting element from a magazine, and- by means of a swivelling motion, presses it into a depression of the vertical post (1) and into the notch, which is located opposite, at the edge of the centre opening (31) of the connection disk (3).
- Method for constructing a modular scaffold according to claims 10 or 11, characterised in that- in the first step. in the vicinity of a wall that is to be scaffolded, at least two short vertical starting elements (7) and in the same position with respect to the longitudinal axis of the wall, but with the larger distance from the wall, two extended vertical starting elements (71) are erected - for example on base spindles - and- In the second step all vertical starting elements (7, 71) are secured with respect to one another for example via the connection with a tubular-frame square comprising horizontal U-crossbars (51) and tubular crossbars (5) and- In the third step a vertical post (1) in each case is pushed onto the two short vertical starting elements (7) and- in the fourth step a vertical post (1) is pushed onto one of the two extended vertical starting elements (71), into the uppermost connection disk (3) of which, a parapet crossbar (52), which is telescopically variable in length, is mounted, and- in the fifth step that end of the parapet crossbar (52) that is still free is mounted in the uppermost connection disk (3) of a further vertical post (1) and- in the sixth step, this vertical post (1) is inserted into an extended vertical starting element (71), and- in the seventh step, between the uppermost connection disks (3) of the vertical posts (1) that stand on the short vertical starting pieces (7) and the connection disks (3), which are located at the same height, of the two other vertical posts (1), a further tubular frame square is mounted, and a scaffold deck (8) is erected.
- Method for constructing a modular scaffold according to claim 15, characterised in that, after the last step, further adjacent scaffold sections with the same structure are constructed.
- Method for constructing a modular scaffold according to claim 16, characterised in that, after the last step, on a lower scaffold level, a next-higher scaffold is erected by pushing a further vertical post (1) in each case onto the upwardly projecting coupling profiles (2), the two outer vertical posts (1), which are further removed from the wall to be scaffolded, being pivotably connected, in each case, at their topmost connection disk (3) to a telescopable parapet crossbar (52).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010021623 DE102010021623A1 (en) | 2010-05-26 | 2010-05-26 | Modular frame with rigidly fitting pipe bolt connections |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2390439A2 EP2390439A2 (en) | 2011-11-30 |
EP2390439A3 EP2390439A3 (en) | 2014-09-03 |
EP2390439B1 true EP2390439B1 (en) | 2015-08-19 |
Family
ID=44511738
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11004300.7A Not-in-force EP2390439B1 (en) | 2010-05-26 | 2011-05-25 | Module frame with rigid adjoining tubular cross bar connections |
Country Status (2)
Country | Link |
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EP (1) | EP2390439B1 (en) |
DE (1) | DE102010021623A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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TWM454435U (en) * | 2012-11-23 | 2013-06-01 | Yukio Yamane | Scaffold |
CN106917497A (en) * | 2017-04-13 | 2017-07-04 | 天津鼎维固模架工程股份有限公司 | A kind of socket joint disk button-type frame set |
DE102017220696A1 (en) * | 2017-11-20 | 2019-05-23 | Peri Gmbh | Scaffolding post, scaffolding and method of making a scaffold post |
DE102018203653A1 (en) * | 2018-03-12 | 2019-09-12 | Peri Gmbh | Scaffolding with scaffolding bar and scaffolding elements as well as a method for setting up a scaffold |
DE102018218060A1 (en) * | 2018-10-22 | 2020-04-23 | Peri Gmbh | Scaffold post connection rosette with hollow embossing at reduced nominal thickness and scaffold assembly |
CN115012638A (en) * | 2022-07-08 | 2022-09-06 | 上海外高桥造船有限公司 | Scaffold |
CN115973371A (en) * | 2022-12-03 | 2023-04-18 | 江苏速捷模架科技有限公司 | Frame upright post unit of construction platform module of enclosure system |
CN116220336B (en) * | 2023-04-25 | 2023-07-21 | 邢台路桥建设集团有限公司 | Self-locking durable scaffold |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2449124C3 (en) | 1974-10-16 | 1980-01-03 | Eberhard 7129 Gueglingen Layher | Connection device for scaffolding elements |
DE9015416U1 (en) | 1990-11-09 | 1991-01-24 | Österreichische Doka Schalungstechnik Gesellschaft mbH, Amstetten | Scaffolding node |
DE19850003A1 (en) * | 1998-10-29 | 2000-05-04 | Plettac Ag | Scaffolding locking system has a holder in a positive and force fit at the vertical scaffolding pole to suspend the horizontal and/or diagonal poles without additional corrosion protection |
DE19859859A1 (en) * | 1998-12-23 | 2000-06-29 | Plettac Ag Geschaeftsbereich G | Modular scaffold tube |
FR2912476B3 (en) * | 2007-02-12 | 2009-04-03 | Havel Regis | ASSEMBLY PIECE FOR LONGIFORM ELEMENTS, AND METHOD OF MANUFACTURING THE ASSEMBLY PART |
-
2010
- 2010-05-26 DE DE201010021623 patent/DE102010021623A1/en not_active Withdrawn
-
2011
- 2011-05-25 EP EP11004300.7A patent/EP2390439B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
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DE102010021623A1 (en) | 2011-12-01 |
EP2390439A2 (en) | 2011-11-30 |
EP2390439A3 (en) | 2014-09-03 |
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