EP4063587B1 - Corner strut for a modular framework, modular framework and use of a corner strut in a modular framework - Google Patents
Corner strut for a modular framework, modular framework and use of a corner strut in a modular framework Download PDFInfo
- Publication number
- EP4063587B1 EP4063587B1 EP22163354.8A EP22163354A EP4063587B1 EP 4063587 B1 EP4063587 B1 EP 4063587B1 EP 22163354 A EP22163354 A EP 22163354A EP 4063587 B1 EP4063587 B1 EP 4063587B1
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- EP
- European Patent Office
- Prior art keywords
- corner strut
- recess
- corner
- strut
- connecting element
- 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.)
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- 230000003014 reinforcing effect Effects 0.000 claims 1
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
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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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
-
- 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
- E04G7/02—Connections between parts of the scaffold with separate coupling elements
- E04G7/06—Stiff scaffolding clamps for connecting scaffold members of common shape
- E04G7/22—Stiff scaffolding clamps for connecting scaffold members of common shape for scaffold members in end-to-side relation
-
- 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
-
- 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
-
- 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
- E04G7/34—Scaffolding bars or members with non-detachably fixed coupling elements with coupling elements using positive engagement, e.g. hooks or pins
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/16—Struts or stiffening rods, e.g. diagonal rods
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G7/00—Connections between parts of the scaffold
- E04G7/02—Connections between parts of the scaffold with separate coupling elements
- E04G7/28—Clips or connections for securing boards
Definitions
- the invention relates to a corner strut for a modular scaffolding and a modular scaffolding with a corresponding corner strut. Furthermore, the use of the corner strut in a modular framework is suggested.
- a modular scaffolding includes prefabricated, standardized scaffolding components that enable the scaffolding to be quickly assembled and dismantled, for example for scaffolding a building facade.
- the scaffolding components are connected via standardized connecting elements and/or connection nodes that enable connections from different directions.
- the scaffolding components can thus be assembled into complex surface or spatial scaffolding.
- the modular scaffolding When scaffolding a façade, the modular scaffolding is usually attached to the façade via scaffold anchors from a certain scaffolding height.
- the fastening is intended to prevent the scaffolding from tipping over.
- the scaffolding height increases, so do the loads that act on the scaffolding components and their connections. Particularly in the connection area of a horizontal beam to a vertical support, overstressing can occur, so that there are limits to the height of the scaffolding.
- the present invention attempts to remedy this.
- the load-bearing capacity of a modular scaffolding in the connection area of a horizontal bar on a vertical support should be increased.
- the additional scaffolding component should be as easy and quick to assemble as possible.
- corner strut with the features of claim 1 and the modular framework with the features of claim 7 are proposed.
- Advantageous developments of the invention can be found in the respective subclaims.
- the use of the corner brace in a modular framework is suggested.
- the proposed corner strut therefore has different connecting elements or connecting means at both ends.
- This means that the corner brace is connected to the vertical support in a different way than the corner brace is connected to the horizontal beam. Since the connection of the corner strut to the horizontal bar is subjected to a significantly lower load than the connection of the corner strut to the vertical bar, the first connecting element, which serves to connect the corner strut to the horizontal bar, can be designed to be comparatively simple.
- the first connecting element can be, for example, a bolt, a hook, a locking lug or a pawl, which can be brought into engagement with a recess in the horizontal bar and is formed by a base body of the corner strut or is arranged on the base body. By simply inserting, twisting, moving and/or pivoting, the connecting element can then be brought into engagement with the recess in the horizontal bar. This means that no tools are necessary to create the connection between the corner brace and the horizontal bar.
- the first connecting element is designed as a bolt, it can be designed like a key, in particular have at least one geometry protruding on the outer circumference, which can be brought into engagement with a key recess of the same design in the horizontal bar.
- assembly requires a specific alignment of the bolt and thus the corner brace in relation to the horizontal bar.
- a positive fit can then be achieved, which secures the connection of the corner strut to the horizontal bar.
- the recess for receiving the first connecting element of the corner strut is preferably arranged on the underside of the horizontal bar.
- the corner brace is then attached to the horizontal bar from below during assembly. If the top side of the horizontal bar is designed to be the same as the bottom side, so that the installation position is arbitrary, the “top side” can also have a recess for receiving the first connecting element of the corner strut. Furthermore, the horizontal bar can have more than just one recess, so that corner struts of different sizes can be connected to the horizontal bar.
- the corner strut After inserting the first connecting element into the recess of the horizontal bar, the corner strut can be connected to the vertical stem.
- the corner brace then transfers loads from the horizontal beam into the vertical support, with the corner brace primarily being loaded in compression.
- the corner brace helps ensure that the specified angle between the horizontal bar and the vertical support is maintained under load.
- the connection area of the horizontal beam to the vertical support is therefore not only reinforced, but also stiffened.
- the additional connecting means provided for connecting the corner strut to the vertical stem can be designed differently - depending on the respective requirements.
- Embodiments are proposed below, which have in common that the connecting means for connecting to the vertical stem each have a connecting element that is movable relative to the corner strut and locking means for locking the movable connecting element.
- the further connecting means comprise a first pipe clamp part as a movable connecting element and a second pipe clamp part fixed to the corner strut, to which the first pipe clamp part is connected via a joint. Due to the articulated connection of the two pipe clamp parts, they can be placed around the vertical support and then connected to form a pipe clamp that encompasses the vertical support.
- the corner strut is connected to the vertical stem via a pipe clamp. This has the advantage that the corner strut can be connected to the vertical support at any point or over the entire length.
- the pipe clamp enables relatively even load transfer to the vertical support.
- the articulated connection of the two pipe clamp parts is designed in such a way that the first connecting element can be rotated or pivoted about an axis of rotation which runs parallel to the longitudinal axis of the vertical stem.
- the locking means for locking the movable connecting element include a bolt, in particular a screw bolt, for clamping the further connecting means, in particular the two pipe clamp parts.
- the bolt or screw bolt enables a detachable connection of the connecting means to the vertical support, so that the corner strut can be easily dismantled when dismantling the modular scaffolding.
- the corner brace can therefore be used multiple times.
- the bolt has a joint part at a first end, which is rotatably received in a bearing section of the second pipe clamp part, so that the bolt can be pivoted relative to the second pipe clamp part.
- the pivotability of the bolt allows the pipe clamp to be opened and closed without having to loosen the bolt.
- the joint part for the rotatable mounting of the bolt can, for example, be a pin which runs perpendicular to the longitudinal axis of the bolt and which has protruding ends on both sides, which are each rotatably accommodated in the bearing section of the second pipe clamp part.
- the axis of rotation runs parallel to the longitudinal axis of the vertical support.
- the bolt preferably has a thread for receiving a nut.
- a force can be exerted by tightening the nut arranged on the thread, by means of which the two pipe clamp parts can be clamped together.
- the corner strut is held securely on the vertical support via the pipe clamp.
- the nut simply needs to be loosened enough so that the bolt can be pivoted to open the pipe clamp. This means that the nut can remain permanently on the thread of the bolt. As a result, it cannot be lost either. All parts that are required to connect the corner strut to the vertical support are therefore part of the corner strut, so that no further connecting and/or fastening means are required.
- the first pipe clamp part has a receptacle into which the bolt can be inserted, in particular pivoted.
- the bolt By inserting, in particular pivoting, the bolt into the receptacle, the first pipe clamp part can be guided behind the nut, so that the nut only needs to be tightened to clamp the two pipe clamp parts.
- the receptacle is preferably designed to be open so that the bolt can be pivoted in. This means that the recording is not enclosed on all sides. Otherwise, in order to close the pipe clamp, the nut would first have to be unscrewed, the bolt passed through the holder and then the nut screwed back on. This is possible in principle, but has the disadvantage that the mother could be lost.
- the further connecting means for connecting the corner strut to the vertical post comprise a pawl as a movable connecting element.
- the pawl can be brought into engagement with a recess in the vertical handle, preferably via a free end designed as a hook or locking lug. No tools are required to make this connection, so it can be made quickly and easily.
- the pawl In contrast to a pipe clamp, the pawl requires a recess in the vertical stem, so that the connection of the corner strut to the vertical stem via the pawl cannot be made at any point. However, if there is a corresponding recess in the vertical handle, insertion or
- Engaging the pawl with the recess can be accomplished quickly and easily.
- the pawl preferably has an eye for receiving a guide element, via which the pawl is guided in a slot-like recess in the corner strut.
- the guide limits the mobility of the pawl, so that it cannot be easily pulled out of the recess when it is in engagement with the recess of the vertical handle.
- the guide element is preferably designed as a ring which is held captively in the slot-like recess of the corner strut and in the eye of the pawl.
- the ring can also be used in a simple manner to fix locking means, which are described below.
- the second embodiment also has locking means for locking the movable connecting element.
- the locking means preferably comprise a movable wedge element which is movably mounted in a slot-like recess in the corner strut via at least one pin.
- the pawl can be brought into engagement with the recess of the vertical handle and fixed or locked in this position.
- the wedge element thus increases the security of the connection of the corner strut to the vertical support.
- the wedge element is preferably movably mounted in a further slot-like recess in the corner strut, so that the wedge element can be moved independently of the pawl.
- the corner strut therefore preferably has several backdrop-like recesses.
- the wedge element is arcuate or sickle-shaped and has an end that can be brought into engagement with the recess of the vertical handle.
- the pawl can therefore be completely fixed, since the freedom of movement required to pull it out or swing it out is missing.
- This is preferably completely filled by the wedge element.
- the recess in the vertical stem is preferably designed as an elongated hole. This not only makes it easier to swing the pawl with the end hook in and out, but also creates additional space to accommodate the wedge element.
- the wedge element has an eye for rotatably receiving a bracket, which can be brought into engagement with the guide element of the further connecting means.
- the position of the wedge element can be secured with the help of the bracket that engages with the guide element.
- the design of the guide element as a ring proves to be an advantage, since the bracket simply has to be inserted into the ring to secure the position of the wedge element.
- the bracket is biased against the wedge element via a spring and a nut.
- the bracket can thus be engaged against the spring force of the spring, for example in order to be brought into engagement with the guide element, which is designed as a ring, of the further connecting means.
- the release movement of the bracket, which is then caused by the spring force, then leads to a pre-tensioning of the bracket against the ring, so that it is held securely in the ring.
- All other connecting means and locking means of the second embodiment are held captively on the corner strut, so that there is no need to look for further connecting and/or fastening means when assembling the corner strut. This allows the corner brace to be installed particularly quickly. The corner brace can also be installed without the use of tools.
- the corner strut according to the invention preferably has a base body which is made from a plate material or from a piece of pipe.
- the base body can in particular be made from a plate material or be a simple plate. To increase the load capacity, the base body can alternatively be made from a piece of pipe.
- the base body is preferably made from a piece of pipe, and more preferably from a square tube.
- a piece of pipe in particular a square pipe, as a base body facilitates the formation of the at least one slot-like recess.
- the pawl and/or the wedge element can be located on the inside, that is, within the pipe section or square tubes can be arranged so that they are held captively and protected from external influences.
- a modular framework is also proposed that comprises at least one corner strut according to the invention.
- the corner strut is connected at one end to a horizontal bar and at the other end to a vertical post of the modular framework.
- the corner brace reinforces and stiffens the connection of the horizontal bar to the vertical post, so that high loads, for example due to large scaffolding heights, can be absorbed.
- the corner strut can be arranged on the inside, i.e. on the facade side of the modular framework, or on the outside. It is preferably arranged below the horizontal bar, so that the horizontal bar rests on the corner strut and is additionally supported by the corner strut.
- the horizontal bar preferably has at least one recess for receiving the first connecting element of the corner strut.
- the at least one recess is preferably formed on the underside of the horizontal bar, so that the corner strut can be attached and mounted from below.
- the position of the corner strut in relation to the horizontal bar is secured by the connecting element of the corner strut received in the recess. Because the horizontal bar not only rests on the corner strut, but the corner strut engages in the recess of the horizontal bar.
- the connecting element of the corner strut inserted into the recess of the horizontal bar engages behind the wall of the horizontal bar.
- At least one recess can be provided on several sides for receiving the connecting element of the corner strut.
- the size and/or shape of the recess depends on the design of the connecting element.
- the recess can be designed as a key recess into which a connecting element of the corner strut designed as a key-like bolt can be inserted.
- the recess can be designed as an elongated hole, which enables insertion, in particular pivoting, of a connecting element designed as a locking lug or pawl.
- the vertical stem has at least one recess for receiving a further connecting element Connecting means and/or a wedge element which has locking means.
- the at least one recess is therefore provided in particular when the connecting means for connecting the corner strut to the vertical stem are designed analogously to the second embodiment described above.
- the at least one recess in the vertical stem is preferably designed as an elongated hole running parallel to the longitudinal axis of the vertical stem.
- the recess in the vertical handle allows the connecting element or the pawl to be pivoted in and creates additional space to accommodate the locking means or the wedge element. After inserting the pawl into the recess, the pawl can then be locked in the recess with the help of the wedge element.
- corner brace according to the invention can be assembled quickly and easily. If the modular framework needs to be dismantled, it can be dismantled just as easily and quickly. Thanks to the reinforcement and bracing provided by the corner brace, the modular framework can accommodate higher loads. In particular, the scaffold height can be increased.
- FIG. 1 An embodiment of a corner strut 200 not according to the invention will first be described in more detail.
- the corner strut 200 is arranged in a modular frame 100 in the area of the connection of a horizontal bar 400 to a vertical stem 500.
- the corner brace 200 reinforces the connection area and gives it additional stiffness.
- the modular framework 100 can therefore carry larger loads, in particular have a greater height.
- connection rosette 600 which is arranged on the vertical support 500.
- the horizontal bar 400 can be attached to this.
- the horizontal bar 400 is supported on the vertical stem 500 via the corner strut 200.
- the corner strut 200 is connected to the horizontal bar 400 via a connecting element 210 at a first end 201 and to the vertical stem 500 via further connecting means 220 at a second end 202.
- the corner strut 200 has a base body 230 made of a plate material, at the first end 201 of which the connecting element 210 is formed.
- This has the shape of a locking lug that is cut out of the plate material of the base body 230.
- the locking lug can be brought into engagement with a recess 401 of the horizontal bar 400 (see Figure 4 ), which is designed as a rectangular opening on the underside of the horizontal bar 400 (see Figure 3 ).
- the attachment to the vertical stem 500 takes place via the connecting means 220, which are arranged at the second end 202 of the base body 230.
- the connecting means 220 include a movable connecting element 221, which is a first pipe clamp part.
- locking means 240 are provided for bracing, which include a bolt 241 and a nut 244.
- the nut 244 is screwed onto a thread 243 of the bolt 241.
- the bolt 241 has a joint part 242 in the form of a pin projecting on both sides, via which the bolt 200 is rotatably mounted in a bearing section 224 of the second pipe clamp part 222.
- the rotatable mounting of the bolt 241 enables the bolt 241 to be pivoted in order to open the pipe location.
- the bolt 241 is pivoted back so that it comes to rest within a receptacle 225 of the first pipe clamp part 221.
- the first pipe clamp part 221 engages behind the nut 244, so that the force required for tensioning is applied by tightening the nut 244.
- the connecting element 210 which is designed as a locking lug, is first brought into engagement with the recess 401 of the horizontal bar 400 at the first end 201 of the base body 230.
- the base body 230 is brought up to the underside of the horizontal bar 400 in an almost vertical orientation with the locking lug first.
- the locking lug is then inserted into the recess 401.
- the corner strut 200 is then pivoted towards the vertical support 500 (see arrow in the Figure 1 ) and the two pipe clamp parts 221, 222 are placed around the vertical stem 500.
- the bolt 241 with the screwed-on nut 244 is pivoted so that it comes to rest in the receptacle 225 and the first pipe clamp part 221 engages behind the nut 244.
- the two pipe clamp parts 221, 222 can then be clamped together.
- FIG. 5 how exemplary this is Figure 5
- another pipe clamp 700 can be attached to the corner strut 200.
- the additional pipe clamp 700 enables the connection of additional scaffolding components (not shown), for example a diagonal strut.
- the corner brace 200 can therefore not only be used to reinforce and stiffen the connection area shown.
- FIG. 3 A preferred embodiment of a corner strut 300 according to the invention will be described in more detail below. This is also connected to a horizontal bar 400 via a first end 301 and to a vertical stem 500 via a second end 302.
- the further corner strut 300 has a base body 330 made from a piece of pipe.
- the base body 330 is therefore designed to be hollow.
- the pipe section has a rectangular cross section.
- the base body 330 has a connecting element 310 for connection to the horizontal bar 400.
- the connecting element 310 is bolt-shaped designed and has side webs 311 and side webs 312 (see Figure 10 ).
- the connecting element 310 can be inserted into recesses 401 of the horizontal bar 400, which have a contour adapted to this. In the Figure 6 Such recesses are shown on the top of the horizontal bar 400.
- the underside has corresponding recesses 401.
- the top and bottom of the horizontal bar 400 are therefore only defined by the installation position of the horizontal bar 400.
- the corner strut 300 To insert the connecting element 310 into a recess 401 of the horizontal bar 400, the corner strut 300 must be brought into a certain angular position so that the webs 311 can be inserted into the corresponding slot-like extensions of the recess 401.
- the corner strut 300 is then rotated by approximately 90° about the longitudinal axis of the bolt-shaped connecting element 310, so that the webs 311 engage behind the wall of the horizontal bar 400 and the second end 302 of the corner strut 300 comes to rest on the vertical stem 500.
- the corner strut 300 can then be connected to the vertical stem 500 via connecting means 320 provided at the second end 302.
- the connecting means 320 provided at the second end 302 include a movable connecting element 321, which forms a hook 322 at one end and an eye 323 at the other end (see Figure 8 as well as Figure 10 ).
- the eye 323 serves to hold a guide element 324, which in the present case is designed as a ring (see Figure 10 ).
- the connecting element 321 is guided via the guide element 324 in a slot-like recess 325 in the base body 330 (see Figure 7 ).
- the connecting element 321 is accommodated in the hollow base body 330.
- the end of the connecting element 321 which is designed as a hook 322, is inserted into a recess 501 of the vertical handle 500, in particular pivoted in.
- the hook 322 engages behind the wall of the vertical handle 500, so that the corner strut 300 is held on the vertical handle 500 via the hook 322.
- locking means 340 are provided, which include a wedge element 341 accommodated in the base body 330 (see Figure 8 , 11 and 12 ).
- the wedge element 341 is guided via pins 342 in a further slot-like recess 343 in the base body 330, so that it can be pushed over the connecting element 321 (see Figure 14 and 15 ).
- the wedge element 341 thus also engages in the recess 501 of the vertical handle 500, so that the connecting element 321 can no longer be pulled out or pivoted out.
- a bracket 345 provided, which is rotatably mounted in an eye 344 of the wedge element 341.
- the bracket 345 can thus be suspended in a pivoting movement into the guide element 324, which is designed as a ring (see Figure 6 and 7 ).
- the bracket 345 must first be moved or engaged in the horizontal direction against the spring force of a spring 346 (see Figures 16 and 17 ). After the bracket 345 has been hooked into the ring, the spring 346 presses the bracket 345 against the guide element 324.
- the connection between the bracket 345 and the guide element 324 cannot therefore be easily released.
- the spring 346 is held by a nut 347 screwed onto the bracket 345.
- the spring force and thus the preload force of the spring 346 can be adjusted via the screwing depth of the nut 347.
- FIG 8 makes it clear that the corner strut 300 consists of a large number of individual parts, which, however, all interlock and are connected or connectable to one another in such a way that they are held captively.
- the corner brace 300 thus forms a scaffolding component (see Figure 7 ), which can be installed quickly and easily, especially without additional fasteners and without tools.
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Description
Die vorliegende Anmeldung beansprucht die Priorität der
Die Erfindung betrifft eine Eckstrebe für ein Modulgerüst sowie ein Modulgerüst mit einer entsprechenden Eckstrebe. Ferner wird eine Verwendung der Eckstrebe in einem Modulgerüst vorgeschlagen.The invention relates to a corner strut for a modular scaffolding and a modular scaffolding with a corresponding corner strut. Furthermore, the use of the corner strut in a modular framework is suggested.
Ein Modulgerüst umfasst vorgefertigte, standardisierte Gerüstbauteile, die ein schnelles Auf-und Abbauen des Gerüsts ermöglichen, beispielsweise zum Einrüsten einer Gebäudefassade. Die Verbindung der Gerüstbauteile erfolgt über standardisierte Verbindungselemente und/oder Anschlussknoten, die Anschlüsse aus unterschiedlichen Richtungen ermöglichen. Die Gerüstbauteile können somit zu komplexen Flächen- oder Raumgerüsten zusammengesetzt werden.A modular scaffolding includes prefabricated, standardized scaffolding components that enable the scaffolding to be quickly assembled and dismantled, for example for scaffolding a building facade. The scaffolding components are connected via standardized connecting elements and/or connection nodes that enable connections from different directions. The scaffolding components can thus be assembled into complex surface or spatial scaffolding.
Beim Einrüsten einer Fassade wird in der Regel das Modulgerüst ab einer gewissen Gerüsthöhe über Gerüstanker an der Fassade befestigt. Die Befestigung soll ein Umkippen des Gerüsts verhindern. Mit der Gerüsthöhe steigen jedoch auch die Lasten, die auf die Gerüstbauteile und ihre Verbindungen wirken. Insbesondere im Anschlussbereich eines Horizontalriegels an einem Vertikalstiel kann es daher zu einer Überbeanspruchung kommen, so dass dadurch der Gerüsthöhe Grenzen gesetzt sind.When scaffolding a façade, the modular scaffolding is usually attached to the façade via scaffold anchors from a certain scaffolding height. The fastening is intended to prevent the scaffolding from tipping over. However, as the scaffolding height increases, so do the loads that act on the scaffolding components and their connections. Particularly in the connection area of a horizontal beam to a vertical support, overstressing can occur, so that there are limits to the height of the scaffolding.
Die vorliegende Erfindung versucht hier Abhilfe zu schaffen. Insbesondere soll mit Hilfe eines zusätzlichen Gerüstbauteils die Tragfähigkeit eines Modulgerüsts im Anschlussbereich eines Horizontalriegels an einem Vertikalstiel erhöht werden. Darüber hinaus soll das zusätzliche Gerüstbauteil möglichst einfach und schnell zu montieren sein.The present invention attempts to remedy this. In particular, with the help of an additional scaffolding component, the load-bearing capacity of a modular scaffolding in the connection area of a horizontal bar on a vertical support should be increased. In addition, the additional scaffolding component should be as easy and quick to assemble as possible.
Zur Lösung der Aufgabe werden die Eckstrebe mit den Merkmalen des Anspruchs 1 sowie das Modulgerüst mit den Merkmalen des Anspruchs 7 vorgeschlagen. Vorteilhafte Weiterbildungen der Erfindung sind den jeweiligen Unteransprüchen zu entnehmen. Ferner wird die Verwendung der Eckstrebe in einem Modulgerüst vorgeschlagen.To solve the problem, the corner strut with the features of claim 1 and the modular framework with the features of claim 7 are proposed. Advantageous developments of the invention can be found in the respective subclaims. Furthermore, the use of the corner brace in a modular framework is suggested.
Die für ein Modulgerüst vorgeschlagene Eckstrebe, die einerseits mit einem Horizontalriegel und andererseits mit einem Vertikalstiel verbindbar ist, umfasst:
- ein erstes Verbindungselement, das zur Verbindung mit dem Horizontalriegel an einem ersten Ende der Eckstrebe angeordnet ist,
- weitere Verbindungsmittel, die zur Verbindung mit dem Vertikalstiel an einem zweiten Ende der Eckstrebe angeordnet sind und mindestens ein Verbindungselement umfassen, das gegenüber der Eckstrebe beweglich ist, sowie
- Arretierungsmittel zur Arretierung des beweglichen Verbindungselements.
- a first connecting element which is arranged at a first end of the corner strut for connection to the horizontal bar,
- further connecting means which are arranged for connection to the vertical post at a second end of the corner strut and comprise at least one connecting element which is movable relative to the corner strut, and
- Locking means for locking the movable connecting element.
Die vorgeschlagene Eckstrebe weist demnach an ihren beiden Enden unterschiedliche Verbindungselemente bzw. Verbindungsmittel auf. Das heißt, dass die Verbindung der Eckstrebe am Vertikalstiel auf eine andere Weise erfolgt als die Verbindung der Eckstrebe am Horizontalriegel. Da die Verbindung der Eckstrebe am Horizontalriegel einer deutlich geringeren Belastung ausgesetzt ist als die Verbindung der Eckstrebe am Vertikalstiel, kann das erste Verbindungselement, das der Verbindung der Eckstrebe mit dem Horizontalriegel dient, vergleichsweise einfach gestaltet sein.The proposed corner strut therefore has different connecting elements or connecting means at both ends. This means that the corner brace is connected to the vertical support in a different way than the corner brace is connected to the horizontal beam. Since the connection of the corner strut to the horizontal bar is subjected to a significantly lower load than the connection of the corner strut to the vertical bar, the first connecting element, which serves to connect the corner strut to the horizontal bar, can be designed to be comparatively simple.
Das erste Verbindungselement kann beispielsweise ein Bolzen, ein Haken, eine Rastnase oder eine Sperrklinke sein, der bzw. die in Eingriff mit einer Ausnehmung des Horizontalriegels bringbar ist und durch einen Grundkörper der Eckstrebe ausgebildet wird oder an dem Grundkörper angeordnet ist. Durch einfaches Einsetzen, Verdrehen, Verschieben und/oder Verschwenken kann dann das Verbindungselement in Eingriff mit der Ausnehmung des Horizontalriegels gebracht werden. Das heißt, dass kein Werkzeug zur Herstellung der Verbindung zwischen der Eckstrebe und dem Horizontalriegel notwendig ist.The first connecting element can be, for example, a bolt, a hook, a locking lug or a pawl, which can be brought into engagement with a recess in the horizontal bar and is formed by a base body of the corner strut or is arranged on the base body. By simply inserting, twisting, moving and/or pivoting, the connecting element can then be brought into engagement with the recess in the horizontal bar. This means that no tools are necessary to create the connection between the corner brace and the horizontal bar.
Sofern das erste Verbindungselement als Bolzen ausgebildet ist, kann dieser schlüsselartig ausgebildet sein, insbesondere mindestens eine außenumfangseitig vorstehende Geometrie aufweisen, die in Eingriff mit einer gegengleich ausgebildeten Schlüsselausnehmung des Horizontalriegels bringbar ist. Die Montage erfordert in diesem Fall eine bestimmte Ausrichtung des Bolzens und damit der Eckstrebe in Bezug auf den Horizontalriegel. Durch anschließendes Verdrehen der Eckstrebe in Bezug auf den Horizontalriegel kann dann ein Formschluss erzielt werden, der die Verbindung der Eckstrebe mit dem Horizontalriegel sichert.If the first connecting element is designed as a bolt, it can be designed like a key, in particular have at least one geometry protruding on the outer circumference, which can be brought into engagement with a key recess of the same design in the horizontal bar. In this case, assembly requires a specific alignment of the bolt and thus the corner brace in relation to the horizontal bar. By subsequently turning the corner strut in relation to the horizontal bar, a positive fit can then be achieved, which secures the connection of the corner strut to the horizontal bar.
Die Ausnehmung zur Aufnahme des ersten Verbindungselements der Eckstrebe ist vorzugsweise an der Unterseite des Horizontalriegels angeordnet. Die Eckstrebe wird dann bei der Montage von unten an den Horizontalriegel angesetzt. Sofern die Oberseite des Horizontalriegels gleich der Unterseite ausgebildet ist, so dass die Einbaulage beliebig ist, kann auch die "Oberseite" eine Ausnehmung zur Aufnahme des ersten Verbindungselements der Eckstrebe aufweisen. Des Weiteren kann der Horizontalrigel mehr als nur eine Ausnehmung aufweisen, so dass ggf. Eckstreben in verschiedenen Größenabstufungen mit dem Horizontalriegel verbindbar sind.The recess for receiving the first connecting element of the corner strut is preferably arranged on the underside of the horizontal bar. The corner brace is then attached to the horizontal bar from below during assembly. If the top side of the horizontal bar is designed to be the same as the bottom side, so that the installation position is arbitrary, the “top side” can also have a recess for receiving the first connecting element of the corner strut. Furthermore, the horizontal bar can have more than just one recess, so that corner struts of different sizes can be connected to the horizontal bar.
Nach dem Einsetzen des ersten Verbindungselements in die Ausnehmung des Horizontalriegels kann die Eckstrebe mit dem Vertikalstiel verbunden werden. Die Eckstrebe leitet dann Lasten aus dem Horizontalriegel in den Vertikalstiel ein, wobei die Eckstrebe vorrangig auf Druck belastet wird. Zugleich trägt die Eckstrebe dazu bei, dass der vorgegebene Winkel zwischen dem Horizontalriegel und dem Vertikalstiel unter Belastung erhalten bleibt. Der Anschlussbereich des Horizontalriegels an den Vertikalstiel wird somit nicht nur verstärkt, sondern zugleich ausgesteift.After inserting the first connecting element into the recess of the horizontal bar, the corner strut can be connected to the vertical stem. The corner brace then transfers loads from the horizontal beam into the vertical support, with the corner brace primarily being loaded in compression. At the same time, the corner brace helps ensure that the specified angle between the horizontal bar and the vertical support is maintained under load. The connection area of the horizontal beam to the vertical support is therefore not only reinforced, but also stiffened.
Die zur Verbindung der Eckstrebe mit dem Vertikalstiel vorgesehenen weiteren Verbindungsmittel können - abhängig von den jeweiligen Anforderungen - unterschiedlich ausgestaltet sein. Nachfolgend werden Ausführungsformen vorgeschlagen, die gemein haben, dass die Verbindungsmittel zur Verbindung mit dem Vertikalstiel jeweils ein gegenüber der Eckstrebe bewegliches Verbindungselement sowie Arretierungsmittel zur Arretierung des beweglichen Verbindungselements aufweisen.The additional connecting means provided for connecting the corner strut to the vertical stem can be designed differently - depending on the respective requirements. Embodiments are proposed below, which have in common that the connecting means for connecting to the vertical stem each have a connecting element that is movable relative to the corner strut and locking means for locking the movable connecting element.
Gemäß einer ersten Ausführungsform, die nicht erfindungsgemäß ist, umfassen die weiteren Verbindungsmittel ein erstes Rohrschellenteil als bewegliches Verbindungselement sowie ein an der Eckstrebe festgelegtes zweites Rohrschellenteil, mit dem das erste Rohrschellenteil über ein Gelenk verbunden ist. Durch die gelenkige Verbindung der beiden Rohrschellenteile können diese um den Vertikalstiel gelegt und anschließend zu einer den Vertikalstiel umgreifenden Rohrschelle verbunden werden. Die Verbindung der Eckstrebe mit dem Vertikalstiel erfolgt demnach in dieser Ausführungsform über eine Rohrschelle. Dies hat den Vorteil, dass die Eckstrebe an beliebiger Stelle bzw. über die gesamte Länge des Vertikalstiels mit diesem verbunden werden kann. Zudem ermöglicht die Rohrschelle eine relativ gleichmäßige Lastabtragung in den Vertikalstiel. Die gelenkige Verbindung der beiden Rohrschellenteile ist derart gestaltet, dass das erste Verbindungselement um eine Drehachse verdreh- bzw. verschwenkbar ist, die parallel zur Längsachse des Vertikalstiels verläuft.According to a first embodiment, which is not according to the invention, the further connecting means comprise a first pipe clamp part as a movable connecting element and a second pipe clamp part fixed to the corner strut, to which the first pipe clamp part is connected via a joint. Due to the articulated connection of the two pipe clamp parts, they can be placed around the vertical support and then connected to form a pipe clamp that encompasses the vertical support. In this embodiment, the corner strut is connected to the vertical stem via a pipe clamp. This has the advantage that the corner strut can be connected to the vertical support at any point or over the entire length. In addition, the pipe clamp enables relatively even load transfer to the vertical support. The articulated connection of the two pipe clamp parts is designed in such a way that the first connecting element can be rotated or pivoted about an axis of rotation which runs parallel to the longitudinal axis of the vertical stem.
Des Weiteren wird vorgeschlagen, dass die Arretierungsmittel zur Arretierung des beweglichen Verbindungselements einen Bolzen, insbesondere einen Schraubbolzen, zum Verspannen der weiteren Verbindungsmittel, insbesondere der beiden Rohrschellenteile, umfassen. Der Bolzen bzw. Schraubbolzen ermöglicht eine lösbare Verbindung der Verbindungsmittel mit dem Vertikalstiel, so dass die Eckstrebe beim Rückbau des Modulgerüsts einfach demontiert werden kann. Die Eckstrebe ist somit mehrfach einsetzbar bzw. verwendbar.Furthermore, it is proposed that the locking means for locking the movable connecting element include a bolt, in particular a screw bolt, for clamping the further connecting means, in particular the two pipe clamp parts. The bolt or screw bolt enables a detachable connection of the connecting means to the vertical support, so that the corner strut can be easily dismantled when dismantling the modular scaffolding. The corner brace can therefore be used multiple times.
Ferner wird vorgeschlagen, dass der Bolzen an einem ersten Ende ein Gelenkteil aufweist, das in einem Lagerabschnitt des zweiten Rohrschellenteils drehbeweglich aufgenommen ist, so dass der Bolzen gegenüber dem zweiten Rohrschellenteil verschwenkbar ist. Die Schwenkbarkeit des Bolzens ermöglicht ein Öffnen und Schließen der Rohrschelle, ohne dass der Bolzen gelöst werden muss. Ist der Bolzen ausgeschwenkt und die Rohrschelle geöffnet, können die beiden Rohrschellenteile um den Vertikalstiel gelegt werden. Anschließend wird der Bolzen wieder eingeschwenkt, um die Rohrschelle zu schließen. Da der Bolzen zum Öffnen und Schließen der Rohrschelle nicht gelöst werden muss, ist er dauerhaft verliersicher an dem zweiten Rohrschellenteil gehalten. Ferner ist eine schnelle Montage der Eckstrebe möglich, da nicht erst nach Verbindungsmitteln gesucht werden muss. Das Gelenkteil zur drehbeweglichen Lagerung des Bolzens kann beispielsweise ein senkrecht zur Längsachse des Bolzens verlaufender Zapfen sein, der beidseits überstehende Enden aufweist, die jeweils drehbeweglich in dem Lagerabschnitt des zweiten Rohrschellenteils aufgenommen sind. Die Drehachse verläuft parallel zur Längsachse des Vertikalstiels.Furthermore, it is proposed that the bolt has a joint part at a first end, which is rotatably received in a bearing section of the second pipe clamp part, so that the bolt can be pivoted relative to the second pipe clamp part. The pivotability of the bolt allows the pipe clamp to be opened and closed without having to loosen the bolt. Once the bolt has been swung out and the pipe clamp is opened, the two pipe clamp parts can be placed around the vertical support. The bolt is then swiveled in again to close the pipe clamp. Since the bolt does not have to be loosened to open and close the pipe clamp, it is permanently held captive on the second pipe clamp part. Furthermore, the corner brace can be installed quickly because there is no need to look for connecting means. The joint part for the rotatable mounting of the bolt can, for example, be a pin which runs perpendicular to the longitudinal axis of the bolt and which has protruding ends on both sides, which are each rotatably accommodated in the bearing section of the second pipe clamp part. The axis of rotation runs parallel to the longitudinal axis of the vertical support.
An dem dem Gelenkteil abgewandten weiteren Ende weist der Bolzen bevorzugt ein Gewinde zur Aufnahme einer Mutter auf. Bei geschlossener Rohrschelle kann durch Anziehen der auf dem Gewinde angeordneten Mutter eine Kraft ausgeübt werden, mittels welcher die beiden Rohrschellenteile miteinander verspannt werden können. Über die Rohrschelle ist die Eckstrebe somit sicher am Vertikalstiel gehalten. Bei der Demontage der Eckstrebe muss die Mutter lediglich soweit gelöst werden, dass der Bolzen verschwenkt werden kann, um die Rohrschelle zu öffnen. Das heißt, dass die Mutter dauerhaft auf dem Gewinde des Bolzens verbleiben kann. Demzufolge kann auch sie nicht verloren gehen. Alle Teile, die zur Verbindung der Eckstrebe mit dem Vertikalstiel erforderlich sind, sind demnach Bestandteil der Eckstrebe, so dass keine weiteren Verbindungs- und/oder Befestigungsmittel benötigt werden.At the further end facing away from the joint part, the bolt preferably has a thread for receiving a nut. When the pipe clamp is closed, a force can be exerted by tightening the nut arranged on the thread, by means of which the two pipe clamp parts can be clamped together. The corner strut is held securely on the vertical support via the pipe clamp. When dismantling the corner brace, the nut simply needs to be loosened enough so that the bolt can be pivoted to open the pipe clamp. This means that the nut can remain permanently on the thread of the bolt. As a result, it cannot be lost either. All parts that are required to connect the corner strut to the vertical support are therefore part of the corner strut, so that no further connecting and/or fastening means are required.
Damit die Mutter dauerhaft auf dem Gewinde des Bolzens verbleiben kann, wird ferner vorgeschlagen, dass das erste Rohrschellenteil eine Aufnahme aufweist, in die der Bolzen einsetzbar, insbesondere einschwenkbar, ist. Durch Einsetzen, insbesondere Einschwenken, des Bolzens in die Aufnahme kann das erste Rohrschellenteil hinter die Mutter geführt werden, so dass zum Verspannen der beiden Rohrschellenteile die Mutter nur noch angezogen werden muss. Zum Einschwenken des Bolzens ist die Aufnahme bevorzugt offen ausgeführt. Das heißt, dass die Aufnahme nicht allseitig umschlossen ist. Denn andernfalls müsste zum Schließen der Rohrschelle erst die Mutter abgeschraubt, der Bolzen durch die Aufnahme geführt und anschließend die Mutter wieder aufgeschraubt werden. Dies ist grundsätzlich möglich, weist jedoch den Nachteil auf, dass dabei die Mutter verlorengehen könnte.So that the nut can remain permanently on the thread of the bolt, it is further proposed that the first pipe clamp part has a receptacle into which the bolt can be inserted, in particular pivoted. By inserting, in particular pivoting, the bolt into the receptacle, the first pipe clamp part can be guided behind the nut, so that the nut only needs to be tightened to clamp the two pipe clamp parts. The receptacle is preferably designed to be open so that the bolt can be pivoted in. This means that the recording is not enclosed on all sides. Otherwise, in order to close the pipe clamp, the nut would first have to be unscrewed, the bolt passed through the holder and then the nut screwed back on. This is possible in principle, but has the disadvantage that the mother could be lost.
Gemäß einer zweitenAusführungsform, die erfindungsgemäß ist, umfassen die weiteren Verbindungsmittel zur Verbindung der Eckstrebe mit dem Vertikalstiel eine Sperrklinke als bewegliches Verbindungselement. Die Sperrklinke ist, vorzugsweise über ein als Haken oder Rastnase ausgebildetes freies Ende, in Eingriff mit einer Ausnehmung des Vertikalstiels bringbar. Zur Herstellung dieser Verbindung wird kein Werkzeug benötigt, so dass sie einfach und schnell herstellbar ist.According to a second embodiment of the invention, the further connecting means for connecting the corner strut to the vertical post comprise a pawl as a movable connecting element. The pawl can be brought into engagement with a recess in the vertical handle, preferably via a free end designed as a hook or locking lug. No tools are required to make this connection, so it can be made quickly and easily.
Im Unterschied zu einer Rohrschelle erfordert die Sperrklinke eine Ausnehmung im Vertikalstiel, so dass die Verbindung der Eckstrebe mit dem Vertikalstiel über die Sperrklinke nicht an jeder beliebigen Stelle vorgenommen werden kann. Sofern jedoch eine entsprechende Ausnehmung im Vertikalstiel vorhanden ist, kann das Einsetzen bzw.In contrast to a pipe clamp, the pawl requires a recess in the vertical stem, so that the connection of the corner strut to the vertical stem via the pawl cannot be made at any point. However, if there is a corresponding recess in the vertical handle, insertion or
Ineingriffbringen der Sperrklinke mit der Ausnehmung einfach und schnell bewerkstelligt werden.Engaging the pawl with the recess can be accomplished quickly and easily.
Bevorzugt weist die Sperrklinke ein Auge zur Aufnahme eines Führungselements auf, über welches die Sperrklinke in einer kulissenartigen Ausnehmung der Eckstrebe geführt ist. Die Führung schränkt die Beweglichkeit der Sperrklinke ein, so dass sie in Eingriff mit der Ausnehmung des Vertikalstiels stehend nicht ohne weiteres aus der Ausnehmung herausgezogen werden kann. Das Führungselement ist vorzugsweise als Ring ausgebildet, der verliersicher in der kulissenartigen Ausnehmung der Eckstrebe sowie in dem Auge der Sperrklinke gehalten ist. Der Ring kann zudem in einfacher Weise der Festlegung von Arretierungsmitteln dienen, die nachfolgend beschrieben werden.The pawl preferably has an eye for receiving a guide element, via which the pawl is guided in a slot-like recess in the corner strut. The guide limits the mobility of the pawl, so that it cannot be easily pulled out of the recess when it is in engagement with the recess of the vertical handle. The guide element is preferably designed as a ring which is held captively in the slot-like recess of the corner strut and in the eye of the pawl. The ring can also be used in a simple manner to fix locking means, which are described below.
Analog der ersten Ausführungsform weist auch die zweite Ausführungsform Arretierungsmittel zur Arretierung des beweglichen Verbindungselements auf. In der zweiten Ausführungsform umfassen die Arretierungsmittel bevorzugt ein bewegliches Keilelement, das über mindestens einen Stift in einer kulissenartigen Ausnehmung der Eckstrebe beweglich gelagert ist. Mit Hilfe des Keilelements kann die Sperrklinke in Eingriff mit der Ausnehmung des Vertikalstiels gebracht und in dieser Lage fixiert bzw. arretiert werden. Das Keilelement erhöht somit die Sicherheit der Verbindung der Eckstrebe mit dem Vertikalstiel. Das Keilelement ist vorzugsweise in einer weiteren kulissenartigen Ausnehmung der Eckstrebe beweglich gelagert, so dass das Keilelement unabhängig von der Sperrklinke bewegt werden kann. Die Eckstrebe weist demnach bevorzugt mehrere kulissenartige Ausnehmungen auf.Analogous to the first embodiment, the second embodiment also has locking means for locking the movable connecting element. In the second embodiment, the locking means preferably comprise a movable wedge element which is movably mounted in a slot-like recess in the corner strut via at least one pin. With the help of the wedge element, the pawl can be brought into engagement with the recess of the vertical handle and fixed or locked in this position. The wedge element thus increases the security of the connection of the corner strut to the vertical support. The wedge element is preferably movably mounted in a further slot-like recess in the corner strut, so that the wedge element can be moved independently of the pawl. The corner strut therefore preferably has several backdrop-like recesses.
Gemäß einer bevorzugten Ausgestaltung ist das Keilelement bogen- oder sichelförmig ausgebildet und weist ein in Eingriff mit der Ausnehmung des Vertikalstiels bringbares Ende auf. In diesem Fall wird zur Verbindung der Eckstrebe mit dem Vertikalstiel nicht nur die Sperrklinke, sondern auch das Keilelement in Eingriff mit der Ausnehmung des Vertikalstiels gebracht. Die Sperrklinke kann somit gänzlich festgesetzt werden, da der zum Herausziehen bzw. Herausschwenken erforderliche Bewegungsfreiraum fehlt. Dieser wird vorzugsweise durch das Keilelement in Gänze ausgefüllt. Die Ausnehmung im Vertikalstiel ist bevorzugt als Langloch ausgeführt. Dies erleichtert nicht nur das Ein- und Ausschwenken der Sperrklinke mit dem endseitigen Haken, sondern schafft zusätzlichen Raum zur Aufnahme des Keilelements.According to a preferred embodiment, the wedge element is arcuate or sickle-shaped and has an end that can be brought into engagement with the recess of the vertical handle. In this case, to connect the corner strut to the vertical handle, not only the pawl but also the wedge element is brought into engagement with the recess in the vertical handle. The pawl can therefore be completely fixed, since the freedom of movement required to pull it out or swing it out is missing. This is preferably completely filled by the wedge element. The recess in the vertical stem is preferably designed as an elongated hole. This not only makes it easier to swing the pawl with the end hook in and out, but also creates additional space to accommodate the wedge element.
Als weiterbildende Maßnahme wird vorgeschlagen, dass das Keilelement ein Auge zur drehbeweglichen Aufnahme eines Bügels aufweist, der in Eingriff mit dem Führungselement der weiteren Verbindungsmittel bringbar ist. Mit Hilfe des in Eingriff mit dem Führungselement stehenden Bügels kann die Lage des Keilelements gesichert werden. Hier erweist sich die Ausbildung des Führungselements als Ring als Vorteil, da der Bügel zur Lagesicherung des Keilelements einfach nur in den Ring gesteckt werden muss.As a further development measure, it is proposed that the wedge element has an eye for rotatably receiving a bracket, which can be brought into engagement with the guide element of the further connecting means. The position of the wedge element can be secured with the help of the bracket that engages with the guide element. Here, the design of the guide element as a ring proves to be an advantage, since the bracket simply has to be inserted into the ring to secure the position of the wedge element.
Vorteilhafterweise ist der Bügel über eine Feder und eine Mutter gegen das Keilelement vorgespannt. Der Bügel kann somit entgegen der Federkraft der Feder eingerückt werden, beispielsweise um in Eingriff mit dem als Ring ausgeführten Führungselement der weiteren Verbindungsmittel gebracht zu werden. Die anschließend mittels der Federkraft bewirkte Ausrückbewegung des Bügels führt dann zu einer Vorspannung des Bügels gegen den Ring, so dass dieser sicher im Ring gehalten ist.Advantageously, the bracket is biased against the wedge element via a spring and a nut. The bracket can thus be engaged against the spring force of the spring, for example in order to be brought into engagement with the guide element, which is designed as a ring, of the further connecting means. The release movement of the bracket, which is then caused by the spring force, then leads to a pre-tensioning of the bracket against the ring, so that it is held securely in the ring.
Sämtliche weiteren Verbindungsmittel und Arretierungsmittel der zweiten Ausführungsform sind verliersicher an der Eckstrebe gehalten, so dass bei der Montage der Eckstrebe nicht erst nach weiteren Verbindungs- und/oder Befestigungsmitteln gesucht werden muss. Dies erlaubt eine besonders schnelle Montage der Eckstrebe. Die Eckstrebe kann zudem ohne den Einsatz von Werkzeugen montiert werden.All other connecting means and locking means of the second embodiment are held captively on the corner strut, so that there is no need to look for further connecting and/or fastening means when assembling the corner strut. This allows the corner brace to be installed particularly quickly. The corner brace can also be installed without the use of tools.
Die erfindungsgemäße Eckstrebe weist vorzugsweise einen Grundkörper auf, der aus einem Plattenmaterial oder aus einem Rohrstück gefertigt ist.The corner strut according to the invention preferably has a base body which is made from a plate material or from a piece of pipe.
Sofern die weiteren Verbindungsmittel zur Verbindung der Eckstrebe mit dem Vertikalstiel - analog der ersten Ausführungsform - eine Rohrschelle ausbilden, kann der Grundkörper insbesondere aus einem Plattenmaterial gefertigt bzw. eine einfache Platte sein. Zur Erhöhung der Traglasten kann der Grundkörper alternativ aus einem Rohrstück gefertigt sein.If the further connecting means for connecting the corner strut to the vertical stem - analogous to the first embodiment - form a pipe clamp, the base body can in particular be made from a plate material or be a simple plate. To increase the load capacity, the base body can alternatively be made from a piece of pipe.
Erfolgt die Verbindung der Eckstrebe mit dem Vertikalstiel - analog der zweiten Ausführungsform - über eine Sperrklinke, ist der Grundkörper bevorzugt aus einem Rohrstück gefertigt, und zwar weiterhin bevorzugt aus einem Vierkantrohr. Die Verwendung eines Rohrstücks, insbesondere eines Vierkantrohrs, als Grundkörper erleichtert die Ausbildung der mindestens einen kulissenartigen Ausnehmung. Zudem kann bzw. können die Sperrklinke und/oder das Keilelement innenliegend, das heißt innerhalb des Rohrstücks bzw. Vierkantrohrs angeordnet werden, so dass sie verliersicher gehalten und vor äußeren Einwirkungen geschützt sind.If the corner strut is connected to the vertical stem - analogous to the second embodiment - via a pawl, the base body is preferably made from a piece of pipe, and more preferably from a square tube. The use of a piece of pipe, in particular a square pipe, as a base body facilitates the formation of the at least one slot-like recess. In addition, the pawl and/or the wedge element can be located on the inside, that is, within the pipe section or square tubes can be arranged so that they are held captively and protected from external influences.
Da die vorgeschlagene Eckstrebe insbesondere in einem Modulgerüst zum Einsatz gelangt, wird ferner ein Modulgerüst vorgeschlagen, dass mindestens eine erfindungsgemäße Eckstrebe umfasst. Die Eckstrebe ist dabei einenends mit einem Horizontalriegel und andernends mit einem Vertikalstiel des Modulgerüsts verbunden. In dieser Anordnung bewirkt die Eckstrebe eine Verstärkung und Aussteifung des Anschlusses des Horizontalriegels an den Vertikalstiel, so dass hohe Lasten, beispielsweise aufgrund großer Gerüsthöhen, aufnehmbar sind. Die Eckstrebe kann dabei innenliegend, das heißt auf der Fassadenseite des Modulgerüsts, als auch außenliegend angeordnet werden. Vorzugsweise wird sie unterhalb des Horizontalriegels angeordnet, so dass der Horizontalriegel auf der Eckstrebe aufliegt und über die Eckstrebe zusätzlich abgestützt ist.Since the proposed corner strut is used in particular in a modular framework, a modular framework is also proposed that comprises at least one corner strut according to the invention. The corner strut is connected at one end to a horizontal bar and at the other end to a vertical post of the modular framework. In this arrangement, the corner brace reinforces and stiffens the connection of the horizontal bar to the vertical post, so that high loads, for example due to large scaffolding heights, can be absorbed. The corner strut can be arranged on the inside, i.e. on the facade side of the modular framework, or on the outside. It is preferably arranged below the horizontal bar, so that the horizontal bar rests on the corner strut and is additionally supported by the corner strut.
Der Horizontalriegel weist vorzugsweise mindestens eine Ausnehmung zur Aufnahme des ersten Verbindungselements der Eckstrebe auf. Die mindestens eine Ausnehmung ist vorzugsweise auf der Unterseite des Horizontalriegels ausgebildet, so dass die Eckstrebe von unten angesetzt und montiert werden kann. Durch das in der Ausnehmung aufgenommene Verbindungselement der Eckstrebe wird die Lage der Eckstrebe in Bezug auf den Horizontalriegel gesichert. Denn der Horizontalriegel liegt nicht nur auf der Eckstrebe auf, sondern die Eckstrebe greift in die Ausnehmung des Horizontalriegel ein. Idealerweise hintergreift das in die Ausnehmung des Horizontalriegels eingesetzte Verbindungselement der Eckstrebe die Wandung des Horizontalriegels. Sofern der Horizontalriegel keine definierte Ober- und Unterseite aufweist bzw. die Unterseite erst durch die Einbaulage des Horizontalriegel definiert wird, kann auf mehreren Seiten jeweils mindestens eine Ausnehmung zur Aufnahme des Verbindungselements der Eckstrebe vorgesehen sein. Die Größe und/oder die Form der Ausnehmung hängt von der Ausgestaltung des Verbindungselements ab. Beispielsweise kann die Ausnehmung als Schlüsselausnehmung ausgeführt sein, in die ein als schlüsselartiger Bolzen ausgeführtes Verbindungselement der Eckstrebe einsetzbar ist. Alternativ kann die Ausnehmung als Langloch ausgeführt sein, das ein Einsetzen, insbesondere ein Einschwenken, eines als Rastnase oder Sperrklinke ausgeführten Verbindungselements ermöglicht.The horizontal bar preferably has at least one recess for receiving the first connecting element of the corner strut. The at least one recess is preferably formed on the underside of the horizontal bar, so that the corner strut can be attached and mounted from below. The position of the corner strut in relation to the horizontal bar is secured by the connecting element of the corner strut received in the recess. Because the horizontal bar not only rests on the corner strut, but the corner strut engages in the recess of the horizontal bar. Ideally, the connecting element of the corner strut inserted into the recess of the horizontal bar engages behind the wall of the horizontal bar. If the horizontal bar does not have a defined top and bottom side or the underside is only defined by the installation position of the horizontal bar, at least one recess can be provided on several sides for receiving the connecting element of the corner strut. The size and/or shape of the recess depends on the design of the connecting element. For example, the recess can be designed as a key recess into which a connecting element of the corner strut designed as a key-like bolt can be inserted. Alternatively, the recess can be designed as an elongated hole, which enables insertion, in particular pivoting, of a connecting element designed as a locking lug or pawl.
In Weiterbildung der Erfindung wird vorgeschlagen, dass der Vertikalstiel mindestens eine Ausnehmung zur Aufnahme eines Verbindungselements der weiteren Verbindungsmittel und/oder eines Keilelements der Arretierungsmittel aufweist. Die mindestens eine Ausnehmung ist demnach insbesondere dann vorgesehen, wenn die Verbindungsmittel zur Verbindung der Eckstrebe mit dem Vertikalstiel analog der zuvor beschriebenen zweiten Ausführungsform ausgebildet sind. Die mindestens eine Ausnehmung des Vertikalstiels ist bevorzugt als parallel zur Längsachse des Vertikalstiels verlaufendes Langloch ausgeführt. In dieser Ausführung erlaubt die Ausnehmung des Vertikalstiels ein Einschwenken des Verbindungselements bzw. der Sperrklinke und schafft zusätzlichen Raum zur Aufnahme der Arretierungsmittel bzw. des Keilelements. Nach dem Einsetzen der Sperrklinke in die Ausnehmung kann dann mit Hilfe des Keilelements die Sperrklinke in der Ausnehmung arretiert werden.In a further development of the invention, it is proposed that the vertical stem has at least one recess for receiving a further connecting element Connecting means and/or a wedge element which has locking means. The at least one recess is therefore provided in particular when the connecting means for connecting the corner strut to the vertical stem are designed analogously to the second embodiment described above. The at least one recess in the vertical stem is preferably designed as an elongated hole running parallel to the longitudinal axis of the vertical stem. In this embodiment, the recess in the vertical handle allows the connecting element or the pawl to be pivoted in and creates additional space to accommodate the locking means or the wedge element. After inserting the pawl into the recess, the pawl can then be locked in the recess with the help of the wedge element.
Des Weiteren wird die Verwendung einer erfindungsgemäßen Eckstrebe in einem Modulgerüst vorgeschlagen, und zwar zur Verstärkung und Aussteifung des Anschlusses eines Horizontalriegels an einen Vertikalstiel. Die vorgeschlagene Verwendung hebt die Vorteile der erfindungsgemäßen Eckstrebe besonders deutlich hervor. Denn beim Aufbau des Modulgerüsts kann die erfindungsgemäße Eckstrebe einfach und schnell montiert werden. Steht der Abbau des Modulgerüsts an, kann sie ebenso einfach und schnell demontiert werden. Durch die mit Hilfe der Eckstrebe bewirkte Verstärkung und Aussteifung kann das Modulgerüst höhere Lasten aufnehmen. Insbesondere kann die Gerüsthöhe vergrößert werden.Furthermore, the use of a corner strut according to the invention in a modular framework is proposed, namely to reinforce and stiffen the connection of a horizontal bar to a vertical support. The proposed use particularly clearly highlights the advantages of the corner strut according to the invention. When assembling the modular framework, the corner brace according to the invention can be assembled quickly and easily. If the modular framework needs to be dismantled, it can be dismantled just as easily and quickly. Thanks to the reinforcement and bracing provided by the corner brace, the modular framework can accommodate higher loads. In particular, the scaffold height can be increased.
Bevorzugte Ausführungsformen der Erfindung werden nachfolgend unter Zuhilfenahme der beigefügten Zeichnungen näher beschrieben. Diese zeigen:
-
Fig. 1 eine Seitenansicht einer Eckstrebe in eingebautem Zustand (nicht erfindungsgemäß), -
Fig. 2 eine perspektivische Darstellung der Eckstrebe derFig. 1 , -
Fig. 3 eine perspektivische Darstellung des Horizontalriegels derFig. 1 , -
Fig. 4 einen Längsschnitt durch die Anordnung derFig. 1 , -
Fig. 5 eine perspektivische Darstellung der Anordnung derFig. 1 , -
Fig. 6 eine perspektivische Darstellung einer erfindungsgemäßen Eckstrebe gemäß einer bevorzugten Ausführungsform in eingebautem Zustand, -
Fig. 7 eine perspektivische Darstellung der Eckstrebe derFig. 6 , -
Fig. 8 eine Explosionsdarstellung der wesentlichen Bestandteile der Eckstrebe derFig. 6 , -
Fig. 9 eine perspektivische Darstellung des ersten Verbindungselements der Eckstrebe derFig. 6 , -
Fig. 10 eine perspektivische Darstellung der weiteren Verbindungsmittel der Eckstrebe derFig. 6 , -
Fig. 11 eine perspektivische Darstellung der Arretierungsmittel der Eckstrebe derFig. 6 , -
Fig. 12 eine Seitenansicht der Arretierungsmittel derFig. 11 , -
Fig. 13 eine Seitenansicht der Eckstrebe derFig. 6 während der Montage, -
Fig. 14 eine Seitenansicht der Eckstrebe derFig. 6 während der Montage, -
Fig. 15 eine Seitenansicht der Eckstrebe derFig. 6 während der Montage, -
Fig. 16 eine Seitenansicht der Eckstrebe derFig. 6 während der Montage (um 90° gedreht gegenüber den Seitenansichten derFiguren 13-15 ) und -
Fig. 17 eine Seitenansicht der Eckstrebe derFig. 6 in montiertem Zustand (ebenfalls um 90° gedreht gegenüber denFiguren 13-15 ).
-
Fig. 1 a side view of a corner strut in the installed state (not according to the invention), -
Fig. 2 a perspective view of the corner strutFig. 1 , -
Fig. 3 a perspective view of the horizontal barFig. 1 , -
Fig. 4 a longitudinal section through the arrangement of theFig. 1 , -
Fig. 5 a perspective view of the arrangement of theFig. 1 , -
Fig. 6 a perspective view of a corner strut according to the invention according to a preferred embodiment in the installed state, -
Fig. 7 a perspective view of the corner strutFig. 6 , -
Fig. 8 an exploded view of the essential components of the corner braceFig. 6 , -
Fig. 9 a perspective view of the first connecting element of the corner strutFig. 6 , -
Fig. 10 a perspective view of the further connecting means of the corner strutFig. 6 , -
Fig. 11 a perspective view of the locking means of the corner strutFig. 6 , -
Fig. 12 a side view of the locking meansFig. 11 , -
Fig. 13 a side view of the corner strutFig. 6 during assembly, -
Fig. 14 a side view of the corner strutFig. 6 during assembly, -
Fig. 15 a side view of the corner strutFig. 6 during assembly, -
Fig. 16 a side view of the corner strutFig. 6 during assembly (rotated by 90° compared to the side views of theFigures 13-15 ) and -
Fig. 17 a side view of the corner strutFig. 6 in assembled state (also rotated by 90° compared to theFigures 13-15 ).
Anhand der
Das Modulgerüst 100 kann somit größere Lasten tragen, insbesondere eine größere Höhe aufweisen.The modular framework 100 can therefore carry larger loads, in particular have a greater height.
Der eigentliche Anschluss des Horizontalriegel des 400 am Vertikalstiel 500 erfolgt über eine Anschlussrosette 600, die auf dem Vertikalstiel 500 angeordnet ist. An dieser kann der Horizontalriegel 400 befestigt werden. Darüber hinaus ist der Horizontalriegel 400 über die Eckstrebe 200 am Vertikalstiel 500 abgestützt. Die Eckstrebe 200 ist hierzu über ein Verbindungselement 210 an einem ersten Ende 201 mit dem Horizontalriegel 400 und über weitere Verbindungsmittel 220 an einem zweiten Ende 202 mit dem Vertikalstiel 500 verbunden.The actual connection of the horizontal bar of the 400 to the
Wie insbesondere der
Nicht nur der Bolzen 241 ist drehbeweglich gelagert, sondern auch das erste Rohrschellenteil 221 gegenüber dem zweiten Rohrschellenteil 222, da beide Rohrschellenteile 221, 222 über ein Gelenk 223 verbunden sind (siehe
Bei der Montage der Eckstrebe 200 wird zunächst das als Rastnase ausgebildete Verbindungselement 210 am ersten Ende 201 des Grundkörpers 230 in Eingriff mit der Ausnehmung 401 des Horizontalriegels 400 gebracht. Hierzu wird der Grundkörper 230 in nahezu vertikaler Ausrichtung mit der Rastnase voran an die Unterseite des Horizontalriegels 400 herangeführt. Die Rastnase wird dann in die Ausnehmung 401 eingesetzt. Anschließend wird die Eckstrebe 200 zum Vertikalstiel 500 hin verschwenkt (siehe Pfeil in der
Wie beispielhaft der
Anhand der
Im Unterschied zur Eckstrebe 200 der ersten Ausführungsform weist die weitere Eckstrebe 300 einen aus einem Rohrstück gefertigten Grundkörper 330 auf. Der Grundkörper 330 ist somit hohl ausgeführt. Das Rohrstück besitzt vorliegend einen rechteckigen Querschnitt. An dem ersten Ende 301 weist der Grundkörper 330 ein Verbindungselement 310 zur Verbindung mit dem Horizontalriegel 400 auf. Das Verbindungselement 310 ist bolzenförmig gestaltet und weist seitliche Stege 311 sowie seitliche Stege 312 auf (siehe
Die am zweiten Ende 302 vorgesehenen Verbindungsmittel 320 umfassen hierzu ein bewegliches Verbindungselement 321, das einenends einen Haken 322 und andernends ein Auge 323 ausbildet (siehe
Wie insbesondere den
- 100100
- ModulgerüstModular framework
- 200200
- Eckstrebecorner brace
- 201201
- erstes Endefirst ending
- 202202
- zweites Endesecond ending
- 210210
- Verbindungselementconnecting element
- 220220
- Verbindungsmittellanyard
- 221221
- Verbindungselement, erstes RohrschellenteilConnecting element, first pipe clamp part
- 222222
- zweites Rohrschellenteilsecond pipe clamp part
- 223223
- Gelenkjoint
- 224224
- LagerabschnittStorage section
- 225225
- AufnahmeRecording
- 230230
- GrundkörperBasic body
- 240240
- ArretierungsmittelLocking means
- 241241
- Bolzenbolt
- 242242
- GelenkteilJoint part
- 243243
- Gewindethread
- 244244
- MutterMother
- 300300
- Eckstrebecorner brace
- 301301
- erstes Endefirst ending
- 302302
- zweites Endesecond ending
- 310310
- Verbindungselementconnecting element
- 311311
- Stegweb
- 312312
- Stegweb
- 320320
- Verbindungsmittellanyard
- 321321
- Verbindungselementconnecting element
- 322322
- HakenHook
- 323323
- AugeEye
- 324324
- FührungselementLeadership element
- 325325
- Ausnehmungrecess
- 330330
- GrundkörperBasic body
- 340340
- ArretierungsmittelLocking means
- 341341
- KeilelementWedge element
- 342342
- StiftPen
- 343343
- Ausnehmungrecess
- 344344
- AugeEye
- 345345
- Bügelhanger
- 346346
- FederFeather
- 347347
- MutterMother
- 400400
- HorizontalriegelHorizontal bars
- 401401
- Ausnehmungrecess
- 500500
- Vertikalstielvertical stem
- 501501
- Ausnehmungrecess
- 600600
- AnschlussrosetteConnection rosette
- 700700
- Rohrschellepipe clamp
Claims (10)
- Corner strut (300) for a modular scaffold (100), which is connectable on the one hand to a horizontal latch (400) and on the other hand to a vertical post (500), comprising:- a first connecting element (310) arranged at a first end (301) of the corner strut (300) for connection to the horizontal ledger (400),- further connecting means (320) arranged for connection to the vertical post (500) at a second end (302) of the corner strut (300) and comprising at least one connecting element (321) movable with respect to the corner strut (300), and- locking means (340) for locking the movable connecting element (321),characterized in that the further connecting means (320) comprise a locking pawl as movable connecting element (321), which can be brought into engagement with a recess (501) of the vertical post (500), preferably via a free end formed as a hook (322) or latching lug.
- Corner strut (300) according to claim 1,
characterized in that the first connecting element (310) is a bolt, hook, latch or pawl engageable with a recess (301) of the horizontal bar (300) and formed by or arranged on a base body (330) of the corner strut (300). - Corner strut (300) according to claim 1 or 2,
characterized in that the pawl has an eye (323) for receiving a guide element (324), via which the pawl is guided in a gate-like recess (325) of the corner strut (300), the guide element (324) preferably being designed as a ring. - Corner strut (300) according to one of the preceding claims,
characterized in that the locking means (340) comprise a movable wedge element (341), which is movably mounted in a gate-like recess (343) of the corner strut (300) via at least one pin (342), wherein preferably the wedge element (341) is of arcuate or sickle-shaped design and has an end that can be brought into engagement with the recess (501) of the vertical post (500). - Corner strut (300) according to claim 4,
characterized in that the wedge element (341) has an eye (344) for rotatably receiving a bracket (345) which can be brought into engagement with the guide element (324) of the further connecting means (320), the bracket (345) preferably being prestressed against the wedge element (341) via a spring (346) and a nut (347). - Corner strut (300) according to any one of the preceding claims,
characterized in that the corner strut (300) comprises a base body (330) made of a plate material or of a tube piece, preferably of a square tube. - Modular scaffold (100) comprising at least one corner strut (300) according to one of the preceding claims, wherein the corner strut (300) is connected at one end to a horizontal ledger (400) and at the other end to a vertical post (500) of the modular scaffold (100).
- Modular scaffold (100) according to claim 7,
characterized in that the horizontal ledger (400) has at least one recess (401) for receiving the first connecting element (310) of the corner strut (300), the at least one recess (401) preferably being formed on an underside of the horizontal ledger (400) and/or being designed as a key recess. - Modular scaffold (100) according to claim 7 or 8,
characterized in that the vertical post (500) has at least one recess (501) for receiving a connecting element (321) of the further connecting means (320) and/or a wedge element (341) of the locking means (340), the at least one recess (501) preferably being designed as an elongated hole running parallel to a longitudinal axis (A) of the vertical upright (500). - Use of a corner brace (300) according to any one of claims 1 to 6 in a modular scaffold (100) for reinforcing the connection of a horizontal ledger (400) to a vertical post (500).
Applications Claiming Priority (1)
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DE102021107053.8A DE102021107053A1 (en) | 2021-03-22 | 2021-03-22 | Corner brace for a modular scaffold, modular scaffold and use of a corner brace in a modular scaffold |
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Publication Number | Publication Date |
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EP4063587A1 EP4063587A1 (en) | 2022-09-28 |
EP4063587B1 true EP4063587B1 (en) | 2023-09-20 |
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EP22163354.8A Active EP4063587B1 (en) | 2021-03-22 | 2022-03-21 | Corner strut for a modular framework, modular framework and use of a corner strut in a modular framework |
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DE (1) | DE102021107053A1 (en) |
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NL2020375B1 (en) * | 2018-02-02 | 2019-08-12 | Brand Infrastructure Services B V | Scaffolding, coupling device and method for erecting a scaffolding |
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AT16298B (en) | 1902-05-06 | 1904-05-25 | Rudolf Geburth | Slow-burning stove. |
DE10160482A1 (en) | 2001-12-08 | 2003-10-02 | Peri Gmbh | clamp coupling |
DE102008031242A1 (en) | 2008-07-02 | 2010-01-07 | Peralta, German | Connection device for arranging in connection area of vertical profile bar with lateral profile bar of truss system, has area for connecting connection device to one of adjacent profile bars |
JP5926712B2 (en) * | 2013-09-10 | 2016-05-25 | Krh株式会社 | Temporary scaffolding connection structure |
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