CN114278066A

CN114278066A - Scaffold node and scaffold section and method for constructing such scaffold section

Info

Publication number: CN114278066A
Application number: CN202110035438.3A
Authority: CN
Inventors: 埃尔查德·米基奇
Original assignee: Peri GmbH
Current assignee: Peri GmbH
Priority date: 2020-09-26
Filing date: 2021-01-12
Publication date: 2022-04-05
Anticipated expiration: 2041-01-12
Also published as: DE102020125166A1; CN114278066B; TWI765471B; CN215107073U; TW202212682A; TWM613846U

Abstract

The invention relates to a scaffold node for connecting scaffold elements extending in different spatial directions, comprising: a coupling sleeve which is provided as a coupling point for at least two scaffold elements, wherein the coupling sleeve has a sleeve wall which at least partially surrounds a hollow interior of the coupling sleeve and has a central axis which extends in the direction of the longest dimension of the coupling sleeve and is arranged in the middle thereof, viewed in a top view of an end face of the coupling sleeve; and at least one coupling element for connecting the scaffold node with other scaffold elements, wherein the coupling element is connected with the sleeve wall. The connecting sleeve has at least one slot which is formed in the sleeve wall, extends with a slot length parallel to the central axis and opens into an end opening arranged at the end face of the connecting sleeve. The invention also relates to a scaffold section with scaffold nodes and other scaffold elements, and a method for constructing such a scaffold section.

Description

Scaffold node and scaffold section and method for constructing such scaffold section

Technical Field

The present invention relates to a scaffold node for connecting scaffold elements extending in different spatial directions, the scaffold node comprising: a connecting sleeve which is provided as a coupling point for at least two scaffold elements, wherein the connecting sleeve has a sleeve wall which at least partially surrounds a hollow interior of the connecting sleeve and which has a central axis which extends in the direction of the longest dimension of the connecting sleeve and is arranged in the middle thereof, viewed in a top view of the end face of the connecting sleeve; and at least one coupling element for connecting the scaffolding node with other scaffolding elements, wherein the coupling element is connected with the sleeve wall. The connecting sleeve has at least one slot which is formed in the sleeve wall, extends parallel to the central axis by the slot length, and opens into an end opening arranged at the end face of the connecting sleeve. The invention also relates to a scaffold section with scaffold nodes and other scaffold elements, and to a method for constructing such a scaffold section.

Background

Scaffolding is used in the construction field for various tasks. Facade scaffolding (fasadiger üste) is used to form the outer surface of a building, for example for painting. The facade scaffolding is generally constructed with a facade scaffolding frame as a main component, and recently it is also constructed with a modular scaffolding. In civil engineering, supporting scaffold is used to move different building elements into position and hold them there. Such building elements are for example concrete prefabricated parts, steel beams or steel structures. Furthermore, for the construction of buildings, the required elements (such as temporary structures or formworks) are positioned by means of supporting scaffold. Finally, scaffolding can also be used in the field of maintenance or inspection, for example to safely bring workers, in large processing plants, such as oil refineries, to the plant components to be overhauled. Generally, the basic requirements for a scaffold are that it must be easy to transport and easy to construct. The scaffolding is generally constructed with the scaffolding frame as a main component, and recently, it is also constructed using a modular scaffold. Typically, the supporting scaffolding frame is fixedly connected to each other by two vertical bars (vertikalsiel), by one or two crossbars and by one or two vertical struts welded together or otherwise. The facade scaffold frame is manufactured in a similar manner. The scaffolding frame supporting the scaffolding and the facade scaffolding is thus constructed in a similar manner.

As is well known in the art, support scaffolds are known which are composed of a plurality of supporting scaffold frames together and which are supported by other scaffold elements. For this purpose, the supporting scaffold frame is implemented two-dimensionally, that is to say it extends in one plane. In most cases, the supporting scaffold frame has a rectangular shape. The supporting scaffolding frame is the basic unit that supports the scaffolding. The two-dimensional support scaffold frame is connected into a three-dimensional scaffold through a support column plane. As the strut plane, a so-called strut cross (Strebenkreuze) is often used, which is composed jointly of two intersecting vertical diagonals (Vertikaldiagonalen) or is formed by a combination of horizontal crossbars and vertical diagonals. Supporting scaffolding is also known in which the planes of the supporting scaffolding frame and the prop plane can appear alternately or be mixed with each other when supporting the scaffolding in a vertical configuration. It is advantageous for the use of a supporting scaffold that supports the scaffold frame to be easy to construct and for the single assembly to be simple and inexpensive to implement. The supporting scaffold formed by the supporting scaffold frame is usually constructed and used as a single supporting scaffold tower (Tragger ü stet ü rme), wherein these supporting scaffold towers are connected to one another only by means of additional material and greater costs, which can be regarded as a disadvantage.

Another disadvantage of such supporting scaffolding towers is that the performance of the planes (load bearing capacity and rigidity) is often different and the load bearing capacity of the strut planes is often inferior to the use of planes supporting the scaffolding frame.

As a relatively new prior art, so-called modular scaffolds are known, which can be connected and constructed from different modules into a three-dimensional scaffold. Such modular scaffolds are not based on two-dimensional scaffolding frames, but on modular scaffold elements or modular scaffold parts that are realized in one dimension. It is advantageous for such modular scaffolds to be able to achieve a higher load capacity with a smaller number of components than the supporting scaffold formed by the supporting scaffold frame and the strut plane. Generally speaking, the load bearing capacity of a supporting scaffold formed from modular scaffold elements is high relative to the load bearing capacity of the heavier strut planes in a supporting scaffold tower formed from a supporting scaffold frame.

In practice it is often the case that already at the site there are reliable assemblies for supporting the scaffolding, in particular the supporting scaffolding frame and the post plane, but at the same time it is necessary to use at least partly modular scaffolding with a higher load-bearing capacity. Construction contractors often have concerns about the costly conversion to purely modular scaffolding and desire to continue to use and integrate their existing scaffolding made up of the scaffolding framework.

DE 3022439 a1 describes a scaffold in which vertically extending rods are connected by means of double sleeves (Doppelmuffen). The vertically extending rod is inserted into the double sleeve. Additional scaffolding struts can be added to such double sleeves.

KR 10-1625012B 1 discloses a connecting element for two vertically extending rods. The connection between the vertically extending rod and the connecting element is effected by twisting, which is similar to a bayonet connection (bayonettverseschluss).

Disclosure of Invention

The object of the present invention is therefore to propose a solution which makes it possible to connect the scaffold elements of a known support scaffold or facade scaffold simply and safely with the elements of a modular scaffold.

The object of the invention is achieved by a scaffold node for connecting scaffold elements extending in different spatial directions, comprising:

a coupling sleeve which is provided as a coupling point for at least two scaffold elements, wherein the coupling sleeve has a sleeve wall which at least partially surrounds a hollow interior of the coupling sleeve and which has a central axis which extends in the direction of the longest dimension of the coupling sleeve and is arranged in the middle thereof, viewed in a top view of an end face of the coupling sleeve,

at least one coupling element for connecting the scaffold node with other scaffold elements, wherein the coupling element is connected with the sleeve wall,

wherein the connecting sleeve has at least one slot which is formed in the sleeve wall, extends parallel to the central axis by a slot length and opens into an end opening arranged at the end face of the connecting sleeve, and the sleeve wall surrounds the central axis along the slot length direction at a circumferential angle which is greater than 270 °, preferably greater than 300 °.

The scaffold node according to the invention comprises: a connecting sleeve having a sleeve wall which at least partially surrounds an interior of the connecting sleeve. Openings or holes, such as slits, described later, are provided in the sleeve wall. The connecting sleeve has an imaginary central axis which is used to define other characteristics of the scaffold node. The central axis extends in the longitudinal direction, that is to say in the direction of the longest dimension of the connecting sleeve. The central axis is arranged in the middle of the connecting sleeve, as seen in a plan view of the end face of the connecting sleeve. With respect to the middle, this is understood here as the center of gravity of the connecting sleeve in the plane of the top view. The connecting sleeve is formed, for example, by a cylindrical tube, so that the central axis is located at the midpoint of the circular cross-section. In addition, the connecting sleeve is formed by a polygonal (in particular square) tube, so that the central axis passes through the center of gravity of the plane of the polygonal end face or cross section. The interior of the connecting sleeve, which is surrounded by the sleeve wall, is realized substantially hollow. Of course, projecting elements, such as projections (vorshp ü nge), can be arranged in this interior. The coupling sleeve is provided as a coupling point for at least two scaffold elements. For coupling the scaffold element with the connecting sleeve, it can be inserted, for example, into the interior of the connecting sleeve. Generally, the central axis of the connecting sleeve is oriented substantially vertically when incorporated into a scaffold section or scaffolding. The connecting sleeve has two end faces which are penetrated by the central shaft. The openings arranged on the end face, which are surrounded by the sleeve wall and provide access to the interior of the connecting sleeve, are referred to as end openings.

The scaffold node according to the invention further comprises at least one coupling element for connecting the scaffold node with other scaffold elements. The other scaffold elements can be of different types. It is particularly advantageous if the coupling element is designed to be connectable to a modular scaffold element or a modular scaffold part. The coupling sleeves are designed in particular for coupling with a scaffold frame supporting a scaffold or a facade scaffold. The scaffold elements, which are coupled to one another by means of the connecting sleeves as coupling points, are thus preferably formed by the scaffold frame. The scaffold elements, which are connected with the coupling elements of the scaffold node, are preferably formed by modular scaffold parts. Different elements can be provided as coupling elements, which make it possible to connect with other scaffold elements. For example, the coupling element may be implemented as a connecting disc (verindringssceibe), which will be described later. The coupling element is connected with the sleeve wall. In a simple embodiment, the coupling element and the sleeve wall are fixedly and continuously connected to one another, for example by welding. However, it is also conceivable for the coupling element and the connecting sleeve to be designed so as to be detachable from one another, for example by means of a screw connection.

According to the invention, the connecting sleeve has at least one slot formed in the sleeve wall. Advantageously, the slot is embodied linearly and extends with a slot length parallel to the central axis of the connecting sleeve. The slot forms an opening in the sleeve wall and opens into one of the end openings, which is arranged on the end face of the connecting sleeve. A slit denotes a groove in the sleeve wall, which interrupts the sleeve wall in the circumferential direction. In this region, the remaining sleeve walls enclose a circumferential angle with respect to the central axis, where the slot interrupts the sleeve wall in the circumferential direction. The circumferential angle extends from a first boundary wall (Begrenzungswand) of the slot around the central axis to a further, second boundary wall of the slot, which second boundary wall is opposite the first boundary wall. According to the invention, the circumferential angle is greater than 270 °, preferably greater than 300 °. If the connecting sleeve is again viewed from one end side, two lines which each extend from the center axis to the first boundary wall or the second boundary wall of the slot likewise form an angle, which can be referred to as slot angle. The slot angle and the circumferential angle together form a complete circle of 360 deg.. The gap angle is significantly smaller than the circumferential angle. The circumferential angle is, for example, 300 °, so that the gap angle is the remaining 60 ° of a complete circle. This means that a large part of the circumference of the connecting sleeve is surrounded without interruption by the sleeve wall in the region of the gap and that only a small part of the circumference is interrupted by the gap. It is thereby achieved that the sleeve wall forms a very large bearing or contact surface for the scaffold element inserted into the interior of the connecting sleeve. Such large bearing surfaces are particularly suitable for the absorption and transmission of forces and moments between the scaffold node and the scaffold element connected or coupled thereto. However, providing the slit can provide additional advantages. Generally speaking, scaffolding frames have frame elements arranged perpendicular to each other. The frame element of the scaffolding frame should be pushed into the interior of the connecting sleeve so that another frame element arranged perpendicular to this frame element is introduced into the slot. The scaffold element can thereby be pushed far into the interior of the coupling sleeve of the scaffold node. A secure and stable connection between the scaffolding node and the scaffolding element can thereby be achieved upon coupling. Preferably, the slot, in terms of its width, i.e. the distance between the first boundary wall of the slot and the second boundary wall of the slot, is dimensioned such that it is slightly larger than the width of the frame element to be introduced. This results in a clearance fit (Spielpassung) which makes it possible to insert the scaffold elements into the scaffold node in a simple manner. Generally, the frame elements have vertical bars and frame rails oriented perpendicular to the vertical bars. The vertical rods are introduced into the end faces of the connecting sleeves, wherein the frame rails are received and closed by the slots. In some embodiments, in which only one slot is provided in the connecting sleeve, then accordingly this slot receives only one frame rail. A gap width dimensioned accordingly thus provides a clearance (Freistellung) which makes it possible for the vertical rod to be inserted deeper into the connecting sleeve than would be possible with a connecting sleeve without the clearance provided by the gap. This gap has a more advantageous function: by a corresponding definition of the length of the slot, it is possible to set the distance by which the scaffolding frame or vertical bar and the frame cross bar arranged at right angles thereto can be pushed into the connecting sleeve. The slot length thus defines a stop (Anschlag) for the assembly of the scaffold node with the scaffold element. Such stops simplify and accelerate the construction of the scaffold section or scaffold when using the scaffold node according to the invention. The scaffold nodes and scaffold elements need only be inserted into each other until the frame rails stop at the longitudinal ends of the slots remote from the end openings. The installation position between the scaffold element and the scaffold node is thus precisely defined. Thus, when vertically constructing the scaffold section, it is no longer necessary to time-consuming pin the scaffold nodes and scaffold elements relative to each other in the assembly (absecken). The scaffolding nodes are alternately pinned together with the scaffolding elements, wherein the positions are precisely defined relative to each other by stops at the ends of the slots. Thus, the construction of the scaffolding can be greatly accelerated. The coupling elements arranged on the outer wall of the connecting sleeve make it possible to simply connect other scaffold elements, in particular modular scaffold parts, to the scaffold node. The coupling element has in particular an interface which is adapted to the connection interface of the modular scaffold part to be connected. There are various different modular scaffolding systems on the market. The coupling element is advantageously shaped such that it can be connected to a desired modular scaffolding system. The connecting sleeves represent the interface of the scaffolding nodes with the conventional scaffolding frame supporting the scaffolding or facade scaffolding. In another aspect, the coupling element is provided as an interface for connection with a modular scaffold component. The scaffold node according to the invention thus makes it possible to connect known and existing scaffold elements (in particular of a scaffold frame) with more modern and more efficient modular scaffold components in a simple manner. Thus, by means of the scaffold node according to the invention, it is possible to simply and safely connect an already existing scaffold element of an enterprise stock with a newly purchased modular scaffold part. And therefore enterprises using the scaffold node according to the invention can significantly improve the functionality of their scaffolds with a small number of additional purchased parts or scaffold elements. Advantageously, the coupling element is arranged-in a direction parallel to the central axis of the connection sleeve-at the centre of the connection sleeve. The symmetrical design of the scaffold nodes makes it possible to obtain particularly advantageous and statically stable force and moment flows (momentin blows) via the scaffold nodes. The scaffold section, which has the scaffold node according to the invention, thus makes it possible to achieve a safe force and torque transmission between the mature scaffold element and the newer modular scaffold component.

There are several possibilities for the transmission of forces between the scaffold elements inserted into the end faces of the coupling sleeves. In a simple embodiment, the inner part of the connecting sleeve and the sleeve wall is realized smooth and without protrusions. In this case, the two end faces of the introduced scaffold element bear against one another inside the connecting sleeve, and force transmission takes place between the end faces or end surfaces of the scaffold element. Alternatively, such forces in the direction of the central axis of the coupling sleeve can also be guided by the scaffold node or the coupling sleeve. For example, the ends of the scaffold elements can be connected to the connecting sleeves via further connecting elements (which transmit forces). Thus, for example, openings can be provided in the scaffold element and the connecting sleeve, into which openings plug elements (steckellenge) can be inserted as connecting elements. The plug element transmits forces from the first scaffold element to the scaffold node and subsequently from the scaffold node to the second scaffold element. It is also possible to provide one or more projections or shoulders inside the connecting sleeve

The end faces of the inserted scaffold elements are stopped at this projection or shoulder, whereby a form fit (Formschluss) is formed. And thereby effecting a force from the firstThe scaffold element is transferred to the scaffold node by means of the shoulder or protrusion and further to the second scaffold element by means of the shoulder or protrusion.

A further advantage of the scaffolding node according to the invention is that it can be constructed simply and therefore manufactured cost-effectively. Furthermore, the scaffold node according to the invention has a compact size and can therefore be stored and transported in a simple manner. Finally, the scaffold node according to the invention can be matched to the scaffold elements to be connected in a simple manner. Thus, for example, the inner diameter of the connection sleeve can be set by selecting a corresponding prefabricated part as a base body (for example a metal tube) of the connection sleeve. When introducing the slot, the width and the slot length can be designed corresponding to the size of the frame rail to be introduced. Furthermore, the coupling element can also be matched in size and shape to the scaffold elements to be connected, in particular to the modular scaffold components.

In one embodiment, it is provided that the coupling element surrounds the connecting sleeve. In this embodiment, the coupling element is arranged around the connecting sleeve. The coupling element therefore surrounds the connecting sleeve in the circumferential direction. The encircling can be realized to be complete, that is to say to be 360 ° around the central axis of the connecting sleeve. Alternatively, the loop can also be discontinuous, i.e. it does not extend 360 ° around the central axis. The coupling element can thus be realized, for example, in such a way that it surrounds the connecting sleeve by 180 ° or 270 °. In these examples, there are still regions on the circumference of the connecting sleeve where no connecting elements are arranged. Advantageously, the coupling element is fixed on the outer circumference of the connecting sleeve and at least partially rests on this outer circumference. In a further alternative embodiment, a plurality of coupling elements can be arranged distributed over the circumference to the connecting sleeve. Each of these coupling elements can then be connected with another scaffold element.

It is also proposed that the gap length is at least 0.5 times greater, in particular at least 1.2 times greater, than the inner diameter of the connecting sleeve. The slot length has an influence on the mechanical stability of the coupling sleeve itself and on the stability of the scaffold sections connected by the scaffold node. The gap length is 0.5 times greater than the inner diameter of the connecting sleeve. For this embodiment, this means that the length of the slot is half the inner diameter of the connecting sleeve. Such embodiments are particularly mechanically stable, but have the disadvantage that the scaffold element can only be introduced into the connecting sleeve over a short distance. In order to be able to push the scaffold element into the coupling sleeve over a longer distance, the slot length is implemented, for example, as large as the inner diameter of the coupling sleeve. In practice, it has proven to be particularly advantageous to have a gap length which is greater than 1.2 times the inner diameter of the connecting sleeve. For the slit length, an advantageous dimension is in the range of 30mm to 70 mm.

Advantageously, it is provided that the overall sleeve length of the connecting sleeve is 2 to 5 times, in particular 3 times, greater than the sleeve diameter and/or that the overall sleeve length is at least 200mm, preferably at least 300 mm. In this embodiment, the overall sleeve length of the connecting sleeve, which also represents the overall length of the scaffold node, is significantly greater than the sleeve diameter of the connecting sleeve. In a preferred embodiment, the overall sleeve length is about three times as large as the sleeve diameter. Here, the sleeve diameter is understood to be the outer diameter of the connecting sleeve. However, the overall sleeve length can also be designed to be 2 to 5 times greater relative to the inner diameter of the connecting sleeve. The overall sleeve length is advantageously at least 200mm, but is preferably slightly longer than 200mm and at least 300 mm. In general, the scaffold elements are inserted into the scaffold nodes starting from the two end sides of the connecting sleeves. For an overall sleeve length of 200mm, each inserted scaffold element has an insertion length of 100mm, which already (in particular in combination with the insertion elements described later) leads to a mechanically stable connection. For an overall sleeve length of 300mm, each inserted scaffold element already has an insertion length of 150mm, which also improves the mechanical stability of the connection between the scaffold node and the inserted scaffold element. With such insertion lengths of 150mm or more, a pin connection between the scaffold node and the scaffold element by means of a plug element is no longer necessary for a sustainable and elastic connection.

In a preferred embodiment, it is provided that the gap length is greater than the sleeve diameter, in particular greater than twice the sleeve diameter. In this embodiment, the slit length is defined relative to the sleeve diameter, which represents the outer diameter of the connection sleeve. Advantageously, the length of the slit is chosen to be greater than the diameter of the sleeve. In order to enable the insertion of the scaffold element over a longer distance into the connecting sleeve, the slot length is preferably implemented as more than twice the sleeve diameter.

One refinement provides that the slot has two longitudinal boundaries which extend substantially parallel to one another relative to the sleeve wall and, at its end remote from the end face, has a curved transition between the longitudinal boundaries. In this embodiment, the gap is defined by two longitudinal boundaries and a transition between these longitudinal boundaries. The two longitudinal boundaries represent boundary walls of the slit in a direction parallel to the central axis of the connecting sleeve. The transition between the two longitudinal boundaries is formed by boundary walls which are embodied as curved. The slot is preferably implemented in a U-shape, wherein the two longitudinal boundaries form a U-shaped leg (Schenkel) and a curved transition section connecting the two legs. Here, the transition section can have a uniform radius of curvature or possibly also different radii of curvature. In an alternative embodiment, the gap can also be defined by a transition section which is realized in a planar manner, i.e. is not curved, at its end remote from the end face of the connecting sleeve.

In a preferred embodiment, it is provided that the transition section, which is curved between the longitudinal boundaries of the slot, is provided as a mounting stop for the scaffold element on the scaffold node. In this embodiment, the transition section, which is bent between the longitudinal boundaries of the slit (which represents the boundaries of the slit in the direction of the central axis of the connecting sleeve), serves as an installation stop. When connecting or coupling the scaffold element with the scaffold node, the scaffold element is pushed into the end faces of the connecting sleeves until the region of the scaffold element (in particular the frame rail) stops at the curved transition. By means of such mounting stops, it is ensured that the scaffold elements and the scaffold nodes are correctly positioned relative to one another. The shape of the curved transition section is optionally realized here as a negative form (Negativform) relative to the stop region of the scaffold element, in particular as a negative form relative to the frame rail. Generally speaking, when constructing scaffold sections or scaffolds, no significant forces are transferred between the curved transition section and the scaffold elements connected to the scaffold nodes. For the scaffold section to be constructed, it is advantageous to achieve the force transmission directly in the connecting sleeve between the two inserted scaffold elements. Alternatively, however, the force flow can also be guided by the connection sleeve, for example by a plug element or a shoulder formed inside the connection sleeve. However, with a corresponding design, it is also possible to transmit forces between the curved region of the slot and the region of the inserted scaffold element that is stopped at the curved region.

It is also proposed that only the gap, and in particular no further gaps, be arranged in the region parallel to the central axis in which the gap is arranged. In this embodiment, only a single slit is arranged in the circumferential direction of the connecting sleeve. In the region along the central axis (i.e. in the longitudinal direction of the connecting sleeve), the sleeve wall is interrupted in each case by only a single slit. For example, a slot is arranged from one end face of the connecting sleeve, which slot extends parallel to the central axis by a slot length in the direction of the opposite end face of the connecting sleeve. No other gaps are present in the region of the gap length. This ensures that a very large contact surface is provided in the circumferential direction by the sleeve wall in the region of the gap. The contact surface is interrupted by only a single slit, whereby a very large circumferential angle of at least 270 ° is achieved in the region of the slit. Such a large circumferential angle or such a large contact surface makes it possible to achieve a more secure and stable force and moment transmission between the coupling sleeve and the scaffold element coupled thereto. Of course, a plurality of (in particular two) slits can also be arranged in the longitudinal direction of the connecting sleeve, i.e. along the central axis. Advantageously, a slit is arranged from each of the two end faces of the connecting sleeve. However, starting from each of the two end faces, only one slit is arranged in each case in the respective region in the circumferential direction of the connecting sleeve.

In a preferred embodiment, two slots are provided, which open into two opposite end openings and extend parallel to the central axis in the direction of the center line of the connecting sleeve by the respective slot length. In this embodiment, two slots are provided, which each extend from the end opening on the end face of the connecting sleeve in the direction of the center line of the connecting sleeve. Wherein the slot lengths of the two slots can be embodied to be identical or different. By providing two slots, each starting from opposite end openings, the scaffold node can be coupled with each scaffold element on both sides of the connecting sleeve. However, it is of course also conceivable for the connecting sleeve to have only one slit from the end opening.

One clever approach proposes that two slits are arranged starting from the respective end opening, wherein the slits are arranged parallel to one another or aligned with one another. In this embodiment, the two slots facing each other are oriented at least parallel to each other. The first slit is disposed from the first end opening and is located at a first circumferential position on a circumference of the coupling sleeve. The second slits, which extend from the opposite second end opening, can be arranged at the same circumferential position, i.e. in alignment with the first slits. In this case, two slits are arranged opposite to each other. However, the second slit may also be arranged at other circumferential positions on the circumference of the connecting sleeve, which are different from the circumferential positions at which the first slit is located. In this case, the two slits are not aligned, but are oriented parallel to each other and to the central axis.

In one embodiment, it is provided that the length of the slot is greater than half the overall sleeve length of the connecting sleeve. In this embodiment, the slit extends over more than half of the overall length of the connecting sleeve. This embodiment therefore preferably provides only one slot in the connecting sleeve. The slot realized with such a length makes it possible to insert the scaffold element into the connecting sleeve over a long distance. The result of such a design is therefore that the scaffold elements are positioned at different positions relative to the scaffold nodes, compared to embodiments with shorter slot lengths. Thus, by setting the slot length, the relative position between the scaffold nodes and thus the coupled scaffold elements can be changed. By providing slot lengths which extend in the longitudinal direction on the center line of the connecting sleeve, scaffold nodes can be realized which match different lattices of the scaffold element. As already described above, the scaffold element, which is pushed into the connecting sleeve and coupled thereto, is usually a scaffold frame. There are scaffolding frames with different mesh sizes. The grid size is defined by the size of the individual elements of the scaffolding frame. For example, the vertical bars and/or the frame rails can be realized in different lengths and thus in scaffolding frames having different dimensions. In some cases it is not possible to combine different scaffolding frames into one common scaffolding section, because the sizes or meshes of the different scaffolding frames do not match each other. In this case, the scaffold node, in the embodiment described, the slot length of which extends over half the overall length of the connecting sleeve, can be used to match or compensate for grid differences in the coupled scaffold elements.

In a preferred manner, it is provided that the coupling element is arranged centrally in the longitudinal direction of the connecting sleeve. In this embodiment, the coupling element is arranged substantially in the middle of the length of the connecting sleeve. This results in a symmetrical construction of the scaffolding nodes along the central axis. Such a symmetrical arrangement is particularly advantageous for safe force and moment transmission between the coupled scaffold elements and the scaffold node. However, the coupling element can be arranged in other positions relative to the connection sleeve in the longitudinal direction, if necessary. By arranging the coupling elements off-centre in the longitudinal direction of the connecting sleeve, it is possible, for example, to provide a scaffold node which is able to compensate for different lattice sizes of the coupled scaffold elements. Alternatively, the position of the coupling element is realized to be adjustable along the central axis and thus along the longitudinal direction of the connection sleeve, for example by means of a thread provided between the coupling element and the connection sleeve.

Furthermore, it is proposed that the coupling element is embodied as a coupling plate, wherein the coupling plate has a receiving surface with a plurality of receiving recesses, and the receiving recesses are provided for connection to further scaffold elements (in particular to modular scaffold components), and the coupling plate is fixedly connected to the coupling sleeve, and the receiving surface is oriented substantially perpendicular to the central axis of the coupling sleeve. In this embodiment, the coupling element is formed by a land. The connecting discs are realized substantially planar and oriented perpendicularly to the central axis of the connecting sleeve. The connecting disk protrudes beyond the outer circumferential surface of the connecting sleeve in the radial direction. Advantageously, the connecting disk is connected fixedly (for example, material-dependent) to the connecting sleeve. Alternatively, the connecting disc can also be releasably fixed to the connecting sleeve, for example by means of a fastener. The connecting disc has at least one receiving surface. One or more receiving recesses are arranged in this receiving surface. These receiving recesses can penetrate the entire connecting disc starting from the receiving surface. These receiving recesses define geometrically shaped interfaces which are arranged to be connected with corresponding interfaces of other scaffold elements. The shape and position of the receiving recess thus matches the scaffold element to be connected. Preferably, the modular scaffold components are connected to the scaffold nodes by connecting discs. However, it is also possible to connect other scaffold elements or elements separate from the scaffold section (e.g. wires, water lines or the like) to the connection plates.

In a preferred embodiment, it is provided that the coupling element projects beyond the connecting sleeve in the circumferential direction around the connecting sleeve in the region of the slot by a distance which is smaller than the distance in the other regions. In this embodiment, the coupling elements, in particular the coupling elements realized as coupling discs, project by different distances radially around the outer circumferential surface of the connecting sleeve. At a circumferential position on the outer circumferential surface of the connecting sleeve, at which one or more slits are arranged, the coupling elements project beyond the outer circumferential surface by a distance which is smaller than the distance which projects at other regions or circumferential positions. The reason for this is that the scaffold elements formed in the slots project radially from the slots and thus there is little space in the longitudinal direction aligned with the slots for connecting the coupling elements to the other scaffold elements. Thus, the coupling element, its circumferential position or region adjacent to the slit, can be dimensioned smaller in the circumferential direction or be omitted completely. In other words, the interface provided by the coupling element for connection to other scaffold elements is advantageously arranged in the region of the connection sleeve or at a circumferential position, wherein no gap is present. The coupling element can completely surround the connecting sleeve in the circumferential direction or be arranged only in a partial region of the circumference. However, it is of course also possible to realize the coupling element so as to project radially beyond the outer circumferential surface of the connecting sleeve by the same distance in the region of the gap.

It is also proposed that the connecting sleeve has at least one locking opening

Which passes radially inwards through the sleeve wall of the connecting sleeve, wherein the locking opening is arranged on the side of the slit facing away from the end opening. In this embodiment, the connecting sleeve has one or more locking openings. In such locking openings, connecting elements, in particular plug elements, can be introduced, by means of which a form fit with the coupled scaffold element can be produced. For this purpose, the scaffold elements have fixing openings of similar size. In order to positively fix the scaffolding node to the scaffolding element, the locking opening and the fixing opening are arranged identically to one another (deckungsgleich) and the connecting element or the plug element is then pushed into these openings. The inserted plug element then prevents an undesired separation of the scaffold node from the scaffold element. The locking opening extends in a radial direction through the sleeve wall. In this case, the locking opening can pass through only one sleeve wall or also through two sleeve walls which are diametrically opposite. The locking openings can be arranged at different positions in the circumferential direction, i.e. around the connecting sleeve. It is also conceivable thatLocking openings are formed in the connecting sleeve at different positions in the circumferential direction. In the longitudinal direction of the connecting sleeve, i.e. in the direction in which the central axis extends, the locking opening is arranged on the side of the slit which is remote from the end opening and the end face of the connecting sleeve. In this way, it is possible to insert the connecting element or the plug element into the region of the scaffold element, projecting over a portion of the scaffold element, which is introduced into the slot during coupling. Preferably, the locking opening is arranged between the end of the slit facing away from the end opening and the coupling element. In embodiments with a slot starting from both end openings, at least two locking openings are preferably provided, which are each positioned between an end of the slot facing away from the end face and the coupling element. A plurality of locking openings can be provided, each of which is provided for connecting a scaffold node with a differently embodied scaffold element. By means of this arrangement of a plurality of different locking elements, the scaffold node can be positively connected in a simple manner to a differently embodied scaffold element (in particular a scaffold frame). The scaffolding node realized in this way can thus be connected particularly flexibly to various existing scaffolding elements.

In a further embodiment, it is provided that the coupling element is formed by two cup-shaped locking elements, which are in the form of rims

A configuration in which the cup-shaped lock element is fixedly connected to the connecting sleeve and the other cup-shaped lock element is axially displaceable relative to the connecting sleeve, and a gap exists between the inner diameter of the cup-shaped lock element and the outer diameter of the connecting sleeve, in which gap the end piece of the horizontal transverse rod can be introduced. This embodiment represents an alternative to the previous embodiment in which the coupling element is formed by a land. In this alternative embodiment, the coupling element of the scaffold node is formed by two cup-shaped locking elements. In addition, the cup-shaped locking element allows further scaffold elements (for example modular scaffold parts, which extend in the application case, in particular horizontally or diagonally)Extend) are connected to the scaffold nodes. The cup-shaped lock element is in the form of a rim, which means that it has a smaller diameter at one end thereof (relative to its opposite other end). In this case, one of the cup-shaped lock elements is fixedly connected to the connecting sleeve, and the other cup-shaped lock element is arranged axially movably on the connecting sleeve. To fix the scaffold element, the axially movable cup-shaped lock element is removed from the axially fixed cup-shaped lock element. Subsequently, one end part of the scaffold element (e.g. a horizontal beam) is introduced between the two cup-shaped lock elements. The horizontal beams are modular scaffold components. In order to produce a form fit between the scaffolding node and the horizontal crosspiece, a gap is present between the cup-shaped locking element and the outer surface of the connecting sleeve, in which gap an end piece of the horizontal crosspiece, which is correspondingly formed as a female mold, can be introduced. The horizontal cross-member is placed with its end piece in the gap and the axially movable cup-shaped lock element is moved again towards the axially fixed cup-shaped lock element until the end piece of the horizontal cross-member is enclosed in a form-fitting manner between the two cup-shaped lock elements. The alternative embodiment of the coupling element is particularly easy to handle. By implementing the coupling element as two cup-shaped lock elements, the scaffold node can be matched in connection with a modular scaffold component, the interface having a connection with such cup-shaped lock elements.

In a further alternative embodiment, it is provided that the coupling element is formed by a plurality of (in particular four) wedge lock pockets (Keilsperrtasche), wherein the wedge end regions of the horizontal bars match the wedge lock pockets and can be introduced into the wedge lock pockets and fixed there. In this embodiment, one or more scaffold elements (in particular modular scaffold components) are connected with the scaffold node by means of coupling elements realized as a plurality of wedge-lock pockets. Such a scaffold element can be formed, for example, by a horizontal cross beam having an end region with a wedge shape. As coupling elements, a plurality of wedge pockets are provided, which form a negative mold for the wedge-shaped end regions of the horizontal cross member. For the connection, the wedge-shaped end region of the horizontal crosspiece is simply introduced into a correspondingly formed wedge-shaped locking pocket, whereby a form fit is formed between the horizontal crosspiece and the coupling element. Through this form fit, fix the horizontal beam on the scaffold node. One advantageous way is to provide a plurality of wedge lock pockets which are arranged at regular distances or angles around the circumference of the connecting sleeve. By implementing the coupling elements as a plurality of wedge-shaped locking pockets, the scaffolding nodes can be matched in a simple manner to the modular scaffolding parts (provided with correspondingly formed interfaces).

In a further alternative embodiment, it is proposed that the coupling elements are formed by disks (telestercheibe) which are fixedly connected to the coupling sleeves and which are provided with a plurality of wedge-shaped recesses which extend substantially through the disks, wherein the wedge-shaped recesses are arranged to be connected to horizontally running scaffold elements (e.g. horizontal girders). The disc is usually realized as a ring and represents another embodiment of the coupling element. The disk is fixedly connected with the connecting sleeve and takes the disk as the center. The disk has a plurality of wedge-shaped recesses which are provided for a form-fitting connection to a further scaffold element (for example a horizontal cross member). Such a horizontal transverse member has end pieces corresponding in cross section to such wedge-shaped grooves, which can be introduced into the disks in a form-fitting manner, as a result of which the horizontal transverse member can be fixed to the coupling element realized as a disk. In an advantageous manner, the partition plate (teilerscheib) has an edge on its outer circumference which projects in the longitudinal direction of the connecting sleeve. This edge makes it possible to achieve an additional form-fitting connection with the horizontal crossmember and thus to improve the security of the connection between the scaffold element and the scaffold node. Furthermore, the realization of the coupling element as a disk makes it possible to simply match the scaffolding node to an existing scaffolding element, which has a correspondingly formed connection interface for connection to the disk.

The object of the invention is also achieved by a scaffold section having at least one scaffold node according to the above-described embodiments, and by a scaffold node for a scaffold

At least one scaffolding frame having at least two vertical bars and two frame rails, wherein the ends of the frame rails are fixedly connected with one of the vertical bars, respectively, such that in the circumferential direction the vertical bars and the frame rails are alternately arranged around the scaffolding frame, wherein the ends of the vertical bars protrude beyond the frame rails and form a connecting end,

wherein one of the connection ends is inserted into a connection sleeve of the scaffold node and a frame rail connected thereto is arranged in a slot of the connection sleeve,

at least one further scaffold element, which is connected to the scaffold node, wherein the further scaffold element is formed by a further scaffold frame (which is inserted into the connecting sleeve) and/or by a modular scaffold component (which is connected to the coupling element). A scaffold section according to the invention comprises at least one scaffold node according to any of the preceding embodiments. In an advantageous manner, the scaffold section comprises a plurality of such scaffold nodes, wherein the scaffold nodes can be implemented differently. Furthermore, the scaffold section according to the invention comprises at least one scaffold frame, which is coupled or connected with at least one scaffold node. As regards the scaffold frame, it relates to a frame which is realized substantially two-dimensionally and represents an assembly supporting a scaffold or facade. The scaffolding frame comprises at least two vertical bars arranged substantially parallel to each other, which in the completely constructed state of the scaffolding section extend substantially vertically. The two vertical bars are connected with two frame rails oriented substantially parallel to each other. The frame rails are oriented substantially perpendicular with respect to the vertical bars. The frame rails and the vertical bars together form a rectangle arranged in one plane. Circumferentially, the vertical bars and the frame rails are alternately arranged around the scaffolding frame. The two ends of the vertical rod each protrude beyond the frame rail. The ends of the frame rails are fixed with their end faces on the outer surface of the vertical bars, wherein the end faces of the vertical bars protrude beyond the connection point with the frame rails. This protruding end of the vertical rod forms a connecting end which is used for connecting or coupling with a scaffold node. Each scaffold frame typically has four projecting connection ends and can thus be coupled with four different scaffold nodes. The scaffolding frame can have further elements, such as frame diagonals, which are arranged between the vertical bars and/or the frame rails. With the scaffolding section according to the invention, at least one connecting end of the scaffolding frame is inserted into and coupled with at least one scaffolding node. In this case, the coupling end is inserted into an end opening of a coupling sleeve of the scaffold node. The frame rails arranged adjacent to the connection ends inserted into the scaffold node are arranged in the slots of the connection sleeves. The frame rails are surrounded by a gap at their connection points with the vertical bars. The slot therefore represents a void (aussaprun) in the scaffold node through which the frame rail is guided. By providing slots in the scaffold node, the scaffold frame can be introduced further into the scaffold node (compared to without such slots). By means of this property of the scaffold frame, which can further introduce scaffold nodes, a mechanically stable connection between two elements can be ensured. As described hereinbefore with respect to some embodiments of the scaffold node, the slot of the scaffold node can be used as a mounting stop when connecting the scaffold node with the scaffold frame. The connecting ends of the scaffold frame are simply pushed into the scaffold node until the frame rails stop at the ends of the slots facing away from the end openings of the connecting sleeves. In this way, the insertion depth of the scaffolding frame in the scaffolding node can be defined simply and safely, thus enabling a fast and error-free construction of the scaffolding section. In this case, the slot can enclose the frame rail, in particular the end of the frame rail which is connected to the vertical rod close to the connecting end, over a small distance. In this case, there is a clearance fit between the frame rails and the slots, which clearance fit ensures simple assembly and disassembly. When the scaffold node is completely connected to the connection end portion, a large part of the outer peripheral surface of the connection end portion of the scaffold frame abuts against the inner peripheral surface of the connection sleeve. This abutment between the two circumferential surfaces is achieved in the region defined by the circumferential angle described above with reference to the scaffold node. By means of this large circumferential angle, which is provided by the scaffold node according to the invention, a very large contact surface between the scaffold node and the scaffold frame is ensured in the scaffold section according to the invention. Forces and torques can be safely and reliably transmitted between the two elements by means of the large contact surface.

The scaffold section according to the invention comprises at least one further scaffold element, which is connected to a scaffold node. The other scaffold elements can be formed as modular scaffold parts connected with the coupling elements of the scaffold node. The coupling element has one or more interfaces that are compatible with the connection interfaces of the modular scaffold components. The connection interfaces of the modular scaffold components differ in shape and size from the connection ends of the scaffold frame. The connection of the scaffold frame to the scaffold node is thus achieved only by insertion into the connecting sleeves, whereas the connection of the modular scaffold components is achieved only by coupling with the coupling elements. Thus, the scaffold nodes represent a joint (bindtied) between the scaffold frame and the modular scaffold components. By this function as a coupling, the scaffolding node can in a simple manner realize scaffolding sections that are realized in different ways. The scaffolding frame and the modular scaffolding parts, which are designed in different ways, can thus be flexibly connected to one another and used together in a simple manner. Alternatively or additionally, the scaffolding section according to the invention can be connected with other scaffolding frames, wherein the connecting end of the other scaffolding frame is inserted into the second end of the connecting sleeve opposite the inserted first connecting end of the first scaffolding frame. Thus, the scaffold section according to the invention comprises: a scaffold node, at least one first scaffold frame and additionally at least one modular scaffold component, or a second scaffold frame. Of course, the scaffold section according to the invention can also comprise more of said elements or components. The scaffold section according to the invention can also be further extended such that it represents a complete scaffold. In this case, the scaffold section comprises a plurality of scaffold nodes, a scaffold frame and modular scaffold components.

In a preferred embodiment, it is provided that the scaffolding nodes are connected to two scaffolding frames, wherein the respective connecting ends of each scaffolding frame are inserted into opposite ends of the connecting sleeve, and wherein the frame rails connected to the respective connecting ends are arranged in respective slots which open into the respective end openings of the connecting sleeve. In this embodiment of the scaffolding section, the scaffolding nodes are connected or coupled with the two scaffolding frames. The coupling ends of each of the two scaffold frames are inserted into the end faces of the coupling sleeves of the scaffold node. In this case, the frame rails connected to the respective vertical bars adjacent to the connecting ends of the scaffold frame are each introduced into a slot provided in the scaffold node and are surrounded by the slots in the inserted state. The end sides of the connection ends can be brought into contact with one another in the coupled state inside the connection sleeve, so that a force can be transmitted directly between the two connection ends. Alternatively, the connecting ends can also be connected to or rest on elements of the scaffold node (for example projections in the interior of the connecting sleeves). In this case, the transmission of forces from the connecting end to the scaffold node is effected first and then from the scaffold node to the second connecting end. It is also conceivable for forces to be transmitted between the frame rails and the slots, as long as the frame rails are connected to the respective slots. Instead of the second connecting end or the second scaffold frame, further scaffold elements can be connected to the scaffold node by insertion into the connecting sleeve and subsequently become part of the scaffold section. Such other scaffolding elements can be, for example, by means of a railing post

And (4) forming.

It is also proposed that the scaffolding frame has at least one frame connecting element which is fixedly connected to the vertical bars and/or the frame cross bars, wherein the frame connecting element is provided in connection with a strut bar (strebenstar) for connecting a plurality of feet to one anotherHand-held frame, in particular, wherein the frame connection element is realized as a slanted finger (Kippfinger) or as a railing hook

In this embodiment, the scaffolding frame has at least one frame connection element. In the case of a frame scaffold, which can be, for example, a support scaffold or a facade scaffold, the scaffold frames are connected to each other by strut planes, as described above, thereby forming a three-dimensional scaffold. The post level must be connected to the scaffolding frame. For such a connection between the scaffolding frame and the post plane, frame connection elements are provided. In the construction of framework scaffolding or scaffolding sections, the framework connection elements are connected, for example, with strut crosses or strut rods. The strut cross can be formed from a plurality of strut rods. The frame connecting elements are typically arranged in the same plane as the vertical bars and frame rails of the scaffolding frame. In this case, the frame connection elements can be arranged towards the inside of the scaffolding frame. The frame connecting elements can be realized, for example, as tilting fingers. The tilting finger is a cylindrical element onto which the strut rod can be inserted. In order to ensure that the inserted strut rod cannot unintentionally fall out of the tilting finger, a finger-shaped displaceable element is provided on the tilting finger, which is tilted and thus fixed after the insertion of the strut rod. After such tilting, the prop rod can no longer be disengaged from the tilting finger. Alternatively, the frame connecting element can also be formed by a railing hook. A railing hook is an element arranged for connection with a scaffold railing. The need for a scaffold railing arises when someone walks on the level of the scaffold or scaffold section and these people are at risk of falling.

In an advantageous manner, it is provided that the two end faces of the two connection ends introduced into the connection sleeve adjoin one another or that the two connection ends introduced into the connection sleeve are connected to one another in a form-fitting manner by means of at least one plug element, wherein the plug element is introduced into at least one locking opening in the connection sleeve and at least one of the connection endsThe opening is fixed, whereby forces acting parallel to the central axis can be transmitted between the two connection ends. The transmission of force from the connection end inserted into one side of the connection sleeve to the connection end inserted onto the opposite side of the connection sleeve can be achieved in different ways. In a simple embodiment, the two end faces of the two connection ends meet inside the connection sleeve, whereby a direct force transmission at this location is possible. Alternatively or additionally, one or both of the connection ends can be pinned with a connection sleeve of the scaffold node. The pin connection is realized by means of a plug element which is inserted at least through a part of the connection sleeve and through at least a part of the connection end. This produces a form-fitting connection of the connection ends to the scaffold node. In this case, forces can be transmitted from the first connection end into the scaffold node in a form-fitting manner. Of course, the same is said to be the reverse. The second connecting end inserted into the connecting sleeve is pinned in the same manner, i.e. connected in a form-fitting manner, and forces can accordingly be transmitted between the connecting sleeve and the provided second connecting end in a form-fitting manner. In order to produce a form-fitting connection with the plug element, the connecting sleeve of the scaffold node has at least one locking opening and the connecting end has at least one fixing opening. The locking and fixing openings have an inner cross section (Innenquerschnitt) which is slightly larger than the outer cross section (Au. beta. enquerschnitt) of the plug element. In this way, the plug element can be introduced into the two openings with a clearance fit. A securing element (Sicherungselement) can be provided on the plug element, which can be actuated after the pin connection, so that the plug element is prevented from unintentionally falling out of the opening or being pulled out. By a suitable selection of the tolerances, it is also possible to achieve that the end faces of the two connection ends inserted into the connection sleeve meet each other when the scaffold section is being constructed, but nevertheless a plug element is used to connect the scaffold node to the connection ends. In this case, the pressure is transmitted directly between the two connection ends via the end faces which abut against one another. If a tensile force occurs, a tensile force is generated between both end faces of the joint end in the joint sleeveA small pitch. If a further pulling force is applied, a positive-locking engagement is produced between the plug elements and the connecting elements and the scaffold node. It can thereby be avoided that the scaffold element is pulled out of the scaffold node. Such unintentional pulling out can occur, for example, during the construction or removal of the scaffold section and can be reliably prevented by the additional provision of a plug element. To avoid over-determination in such a case

The clearance fit between the plug element and the locking and fixing openings can be increased. In this case, the connecting end can be pulled out of the connecting sleeve over a short distance from the state in which the opposite connecting end is located against the interior of the connecting sleeve until a positive-locking engagement is achieved between the plug element and the locking opening and/or the fixing opening. Corresponding tolerances in the dimensions of the openings and the plug elements are also advantageous for compensating dimensional tolerances in the length of the connecting ends of the scaffolding frame.

In a preferred embodiment, it is provided that the outwardly facing circumferential surface of the connection end at least partially abuts against an inwardly facing surface of the sleeve wall, in particular in a region of the sleeve wall defined by a circumferential angle, wherein by this surface abutment forces acting perpendicular to the central axis and moments acting about an axis at an angle (in particular at right angles) to the central axis can be transmitted between the connection end and the scaffold node. When coupling the scaffold node and the scaffold frame, the outwardly facing circumferential surface of the coupling end abuts the inwardly facing circumferential surface or surface of the coupling sleeve. The inwardly facing surface of the connecting sleeve is interrupted only by the slits. The inwardly facing surface extends within an area defined by the circumferential angle. Since the circumferential angle is selected to be large, the bearing or contact surface between the scaffolding node and the connecting end of the scaffolding frame is also large. By means of such mutually abutting faces, forces and moments are transmitted between the scaffolding nodes and the scaffolding frame. On the one hand, forces are transmitted via these faces, which are oriented perpendicularly to the central axis of the connecting sleeve. In addition, a torque is transmitted, which occurs about an axis that is arranged at an angle to the central axis. The forces acting parallel to the central axis of the coupling sleeves are transmitted by the aforementioned mechanisms, i.e. not only directly from the scaffold frame coupled with the scaffold node to the other scaffold frame, but also by a form fit between the coupling ends of the scaffold frame and the scaffold node, which is produced by the pin-connection with the plug elements. The scaffold section with the scaffold node can thus transmit tensile and compressive forces and moments between the scaffold elements connected or coupled to the scaffold node. It is also possible to transmit a certain amount of torsional forces through the scaffold joint, which torsional forces arise in the scaffold sections between the different scaffold elements. The gap in the coupling sleeve contributes significantly to a significantly increased contact surface between the coupling end of the scaffolding frame and the coupling sleeve compared to the coupling of a scaffolding node without a gap. As the frame rails can be pushed into the slots, the connecting ends and thus the vertical bars of the scaffolding frame can be pushed significantly further into the connecting sleeves, thereby significantly increasing the bearing surface. By means of the enlarged bearing surface, greater forces and torques can be transmitted via the connection.

It is also proposed that the coupling element is connected to at least one modular scaffold part, wherein the modular scaffold part is formed by a horizontal crossbar or by a horizontal diagonal or by a vertical diagonal. In this embodiment, at least one modular scaffold part is connected to the coupling element. Furthermore, it is also possible to connect other (i.e. a plurality of) modular scaffold parts to the coupling elements of the scaffold node. The modular scaffold components can generally be all scaffold elements belonging to one modular scaffold. Modular scaffolding is understood here to mean scaffolding that can be assembled and assembled from different groups of elements into different overall shapes and dimensions according to the modularity principle (baukastenseprinzip). Thus, for example, the horizontal ledgers of the modular scaffolding (which serve as modular scaffolding components) are connected with the coupling elements. Other possible modular scaffold components are horizontal or vertical diagonals. Of course, other types of modular scaffold parts can also be connected with the coupling element. The coupling element is also connected to other elements, for example by means of a cable, which is used for lashing or fixing the scaffold.

Finally, the object of the invention is achieved by a method for constructing a scaffold section according to one of the preceding embodiments, comprising the following steps:

A) pushing the scaffolding node onto the first connection end of the scaffolding frame, wherein the sleeve wall is pushed over the outer circumference of the connection end, and the frame rail of the scaffolding frame connected with the connection end is introduced into the slot of the connection sleeve until the end of the slot facing away from the end opening stops at the frame rail,

B) the other scaffold frame is connected to the scaffold node by pushing the connecting end of the other scaffold frame into the end of the connecting sleeve opposite the first connecting end and/or connecting at least one modular scaffold component to the coupling element of the scaffold node. The method according to the invention is carried out in order to build a scaffold section according to the invention. The method is preferably performed in the given order of steps a) and B). In the reverse direction of the method steps, a similar method can be used for disassembling or dismantling the scaffold section according to the invention. In a first method step a), the scaffolding nodes are connected or coupled to the scaffolding frame. For this purpose, the coupling sleeves of the scaffolding nodes are pushed onto the coupling ends of the scaffolding frame. Of course, this movement can also be reversed and the coupling ends of the scaffold frame pushed into the coupling sleeves of the scaffold node. During the relative movement of the scaffolding frame with respect to the scaffolding node, the frame rails fixed adjacent to the connection ends are introduced into the slots of the connection sleeves and pushed further in the slots. The introduction of the connecting ends into the scaffolding node is continued until the frame rails stop at the ends of the slots facing away from the end openings. And such stops limit the relative movement between the scaffolding frame and the scaffolding nodes. By means of such stops, a correct positioning between the scaffolding node and the scaffolding frame is ensured. After setting the relative position between the scaffolding nodes and the scaffolding frame, in method step B) further scaffolding elements are connected with the scaffolding nodes. Further scaffold elements relate to further scaffold frames which are introduced into the coupling sleeves with the coupling ends, analogously to method step a). Alternatively, further scaffold elements can be formed by modular scaffold parts, which are connected with the coupling elements of the scaffold node. Of course, it is also possible to connect a plurality of other scaffold elements (for example a scaffold frame and a modular scaffold part) to the scaffold node. Once all the required scaffold elements are connected to the scaffold node, further scaffold nodes and scaffold elements can be added to the scaffold section, analogous to steps a) and B) described above, until the constructed scaffold section meets the required requirements. The method according to the invention can be carried out in a simple manner and with little time expenditure. The correct relative position between the scaffolding nodes and the scaffolding frames connected thereto is set by the stops of the respective frame rails at the ends of the slots facing away from the end openings, which is very easy and does not require any special expertise. For method step a), no tools are required and no control of the method steps by measurement or similar test steps is required. Furthermore, the further scaffold elements are connected to the scaffold nodes according to method step B), which can be carried out very simply and with little time expenditure. The method according to the invention thus makes it possible to construct the scaffold section quickly and thus cost-effectively. At the same time, it is ensured, in particular by the design of the scaffold node, that the scaffold elements are correctly and firmly connected to each other. Thus, a stable and reliable scaffold section can be built in a short time by this method.

The advantages and effects described in connection with the scaffold node and the scaffold section can be transferred to the method according to the invention. Vice versa, the effects and advantages of the method can be transferred to the scaffold node and the scaffold section.

Drawings

Embodiments of the invention are schematically illustrated in the drawings. Shown therein are:

fig. 1 is a perspective view of a scaffold node according to an embodiment of the invention;

FIG. 2 is a perspective view of a scaffold section according to one embodiment of the invention;

FIG. 3 is another perspective view of the scaffold section according to one embodiment of the invention;

FIG. 4 is a perspective view of a portion of a scaffold section according to one embodiment of the invention;

FIG. 5 is a cross-sectional side view of a portion of a scaffold section according to one embodiment of the invention;

fig. 6 is a perspective view of a scaffold node according to another embodiment of the invention;

FIG. 7 is a perspective view of a portion of another embodiment of a scaffold section according to the present invention;

fig. 8 is a perspective view of a scaffold node according to an embodiment of the invention;

fig. 9 is a perspective view of an embodiment of a scaffold node according to an embodiment of the invention; and

fig. 10 is a perspective view of an embodiment of a scaffold node according to an embodiment of the invention.

Detailed Description

In the figures, identical elements are provided with the same reference symbols. In general, the described characteristics of elements described for one figure also apply to the other figures. The direction indication up or down refers to the figures and the meaning can be transferred to other figures.

Fig. 1 shows a perspective view of a scaffold node 1 according to an embodiment of the invention. The scaffold node 1 is used for connecting scaffold elements extending in different spatial directions. The connection and arrangement of the scaffold node 1 in the scaffold section 100 is illustrated by fig. 2. The scaffold node 1 comprises a coupling sleeve 2, which is shown in the vertical direction in fig. 1. In the embodiment shown, the connecting sleeve 2 is formed by a cylindrical tube composed of an iron-based material. The connecting sleeve 2 is realized hollow on the inside, wherein the sleeve wall 21 at least partially surrounds the hollow interior of the connecting sleeve. The connecting sleeve 2 may also have other shapes. For example, the connecting sleeve 2 can also be formed by a tube having a quadrangular (for example square) cross section. The connecting sleeve can also be made of other materials, for example plastic. The dashed line shown in fig. 1 is the central axis MA of the connecting sleeve 2. The central axis MA extends in the longitudinal direction of the connecting sleeve 2 and is arranged in the middle of the sectional view of the connecting sleeve 2, seen in a plan view of the end face 27 of the connecting sleeve 2. In the embodiment shown, the central axis MA simultaneously also represents the axis of symmetry of the connecting sleeve 2. The central axis MA is an imaginary auxiliary geometry which is defined so as to describe other characteristics and shapes of the scaffold node 1. The connecting sleeve 2 has an overall sleeve length 24 which extends from the end face 27 toward the opposite end face 27 of the connecting sleeve. The connecting sleeve 2 has a sleeve diameter 25 on its outer circumferential surface facing outwards. The inner diameter of the connecting sleeve 2 is obtained by subtracting twice the wall thickness of the sleeve wall 21 from the sleeve diameter 25.

The scaffold node 1 further comprises coupling elements 3 for connecting the scaffold node 1 with other scaffold elements. The coupling element 3 is here fixedly mounted at the outer circumferential surface of the connecting sleeve 2. In the embodiment shown, the coupling element 3 is formed in fig. 1 by a connecting disc 31. The land has two receiving faces 311 arranged opposite to each other. Only one upwardly directed receiving surface 311 can be seen in fig. 1. Facing downwards is another receiving surface 311 having the same shape as the facing upwards receiving surface 311. In the land 31, a plurality of receiving grooves 312 are formed from the receiving face 311. The receiving recess 312 represents an interface for connection with other scaffold elements, in particular with the modular scaffold part 6. The receiving recess 312 can, for example, have a shape which is realized complementary to the corresponding connecting interface 61 on the other scaffold elements shown (in particular on the modular scaffold part 6). The shape, size and position of the receiving recess 312 in the coupling disc 31 is not limited to the embodiment shown in fig. 1, but can be varied in accordance with the requirements of the scaffold elements to be coupled. In the embodiment shown, the coupling element 3, which is realized as a connecting disc 31, is made of a flat disc having an essentially square cross section. One corner of the originally square cross section facing the right front is removed. Thus, the coupling elements 3 realized as coupling discs 31 project beyond the outer circumferential surface of the connection sleeve 2 at different distances in the circumferential direction of the connection sleeve 2. In the region facing to the right and to the front, in which two slits 22 are also arranged in the connecting sleeve 2, the coupling element 3 projects beyond the connecting sleeve 2 by a smaller distance than in the other regions. The reason for this is that when connecting the scaffold node 1 with one or two scaffold frames 4, one or two frame rails 42 are guided through the slot 22 and then extend from the slot 22 in the radial direction from the central axis MA. The frame rails 42 guided through the slots 22 will avoid the connection of further scaffold elements, in particular the modular scaffold parts 6, into the region of the coupling element 3 facing the front right, by blocking the space required for such a connection. The coupling elements 3 are thus realized with a smaller projection distance in the region of the slot 22, viewed in the circumferential direction of the connecting sleeve 2. Thereby, the accessibility and the grippability of the frame rail 42 introduced into the slot 22 are improved at the same time, so that the mounting and dismounting of the scaffolding node 1 and the scaffolding frame 4 is simplified. Of course, the coupling elements 3 can also project uniformly in the circumferential direction beyond the outer surface of the connecting sleeve 2. It is likewise possible that the coupling element 3 is not present at all in the region of the gap 22. In this case, the coupling element 3 does not completely surround the connecting sleeve 2, but only in a partial region of the circumference. In the embodiment shown, the coupling element 3 completely surrounds the connecting sleeve 2 on the circumference. The coupling element 3 can thereby be connected to the connecting sleeve 2 around the circumference, so that a very stable connection between the two elements can be achieved. At the same time, in the embodiment shown, the right front removed corner of the coupling element 3 of the scaffold node 3 makes it very ergonomic to operate when connected with the scaffold frame 4. In the embodiment shown, the coupling element 3, which is realized as a connection disc 31, is made of an iron-based material and is connected to the connection sleeve 2 by a welded connection.

The connecting sleeve 2 has at least one slot 22 which is formed in the sleeve wall 21 and extends with a slot length SL parallel to the central axis MA. In the embodiment shown in fig. 1, the connecting sleeve 2 has two slots 22 arranged in alignment with one another, which extend from the end side 27 in the direction of the coupling element 3. The two slots 22 each open into an end opening 23, which represents an opening on the end face 27 into the interior of the connecting sleeve 2. The first upwardly directed slits 22 extend upwardly from the lower end opening 23 by a slit length SL 1. The second slot 22, which is directed downwards, extends from the upper end opening 23 with a slot length SL2 downwards. In the embodiment shown, the two slot lengths SL1 and SL2 are equally long. However, the two slot lengths SL1 and SL2 can also be of different lengths. Each of the slots 22 is delimited in the circumferential direction of the connecting sleeve 2 by two boundary walls. In the embodiment shown, the two boundary walls represent two longitudinal boundaries that are substantially parallel to each other. Here, the longitudinal boundary is linear. Between the longitudinal boundaries, curved transition sections are provided as further boundary walls of the gap 22. In the embodiment shown, the curved transition portion is semi-circular. This form of shape can be formed, for example, when milling is performed using a finger mill to form the slot 22 in the coupling sleeve 2. In the embodiment shown, the two slits 22 are aligned with each other. This means that the two slits 22 are arranged to the same position in the circumferential direction of the connecting sleeve 2. Alternatively, however, it is also possible for the two slits 22 to be arranged only parallel to one another, but not at the same position in the circumferential direction of the connecting sleeve 2. In this case, the slits 22 are directed in different directions in the circumferential direction of the connecting sleeve 2.

What is decisive for the safe and reliable functioning of the scaffolding node 1 is the optimum width of the slot 22. The width of the slot 22 should be just such that the frame rail 42 of the scaffolding frame 4 can be introduced into the slot 22 with a clearance fit. In this case, however, the slot 22 should be embodied as narrow as possible, so that the sleeve wall 21 in the region of the slot 22 is as far as possible not weakened. The width of the slot 22 is defined by the circumferential angle UW of the remaining sleeve wall 21 in the region of the slot 22. In fig. 1, two auxiliary lines are drawn starting from the central axis MA indicated by a dashed line, which lines extend towards the longitudinal boundaries of the slit 22 or boundary walls arranged in the longitudinal direction. These longitudinal boundaries represent the boundaries of the sleeve wall 21 in the region of the slot 22. The circumferential angle UW is defined between two auxiliary lines, i.e. between the longitudinal boundaries of the sleeve wall 21 in the region of the gap 22. As can already be seen from fig. 1, in the embodiment shown, the circumferential angle UW is significantly greater than three-quarters of a circle, that is to say greater than 270 °. This means that the sleeve wall 21 surrounds a large part of the circumference of the connecting sleeve 2 in the region of the slot 22, but is interrupted by the slot 22 only in a small partial region. According to the invention, the circumferential angle UW is greater than 270 °, preferably greater than 300 °. In general, it is true that the greater the circumferential angle UW is selected, the more stable the connecting sleeve 2 is in the region of the slot 22. In order to make the connecting sleeve 2 as stable as possible in the region of the slits 22 and thus make it possible to transmit forces and moments as large as possible, no second slits 22 are arranged in the longitudinal region of the connecting sleeve 2 in which the slits 22 are arranged. The second slits 22 arranged in this region will additionally weaken the connecting sleeve 2 in this region and reduce the circumferential angle UW of the remaining sleeve wall 21. Therefore, it is to be avoided to arrange the second slit 22 in the same longitudinal area of the slit 22. In the embodiment shown, the circumferential angles UW around the two slits 22 are realized to be identical. However, it is also possible to implement the circumferential angles UW of the slots 22 around the upper part and the slots 22 around the lower part to be different.

In the embodiment shown in fig. 1, a plurality of locking openings 26 are formed in the connecting sleeve 2. The locking opening 26 is realized here as a circular opening, extending through the sleeve wall 21 in a radial direction towards the connecting sleeve 2. For this purpose, the locking openings 26 are provided to produce a form-fitting connection between the scaffold node 1 and the scaffold frame 4 coupled thereto. In order to produce such a form-fitting connection, a plug element, which is not shown in fig. 1, is formed in the at least one locking opening 26. At the same time, a plug element is introduced into at least one respective fixing opening 412 of the scaffolding frame 4. These relationships are shown in cross-section in fig. 5. In the embodiment shown in fig. 1, the locking openings 26 are each located between the coupling element 3 and the end of the slit 22 facing away from the respective end opening 23. In the circumferential direction of the connecting sleeve 2, as shown in fig. 1, a plurality of locking openings 26 can be arranged. In this way, it is possible to produce a form fit with different scaffolding frames 4, wherein the respective fixing openings 412 are arranged differently in the circumferential direction. The arrangement of a plurality of locking openings 26 on the circumference of the coupling sleeve 2 thus increases the flexibility in terms of usability of the scaffolding node 1 with differently embodied scaffolding frames 4.

Fig. 2 shows a perspective view of the scaffold section 100 according to an embodiment of the invention. In fig. 2, a scaffolding tower is shown having a plurality of scaffolding sections 100 according to an embodiment of the invention. The scaffolding tower is mainly built up of scaffolding frames 4, which are connected to each other by means of a post plane. On the side of the scaffolding tower facing the front right, four scaffolding frames 4 are arranged one above the other, which are each connected to one another by a scaffolding node 1. The scaffolding frames 4 each comprise two vertical bars 41 oriented vertically and parallel to each other and two horizontal frame crossbars 42 oriented horizontally and parallel to each other. The two vertical bars 41 and the two frame crossbars 42 of the scaffolding frame 4 are arranged in one common plane. A frame diagonal 44 is arranged in each case on the scaffolding frame 4, which frame diagonal 44 is fixed here with each of its two ends to a respective frame rail 42. The scaffold frame 4 is a basic component of a frame scaffold (e.g. supporting scaffold or facade scaffold) that is implemented in two dimensions. On the left-hand rear side of the scaffolding tower, three scaffolding frames 4 are also arranged one above the other and connected to one another by the scaffolding nodes 1. Perpendicular to the plane created by the scaffolding frame 4 facing the front right and the rear left, there are arranged post planes facing the front left and the rear right, respectively. The post planes connect the individual planes realized two-dimensionally by the scaffolding frame 4 to form a three-dimensional scaffolding tower. The strut planes each comprise three strut crosses 5. These strut cross pieces 5 are each constructed from two strut rods 51 connected to one another. The strut rods 51 are connected at their ends to the scaffolding frame 4 by means of frame connecting elements 43. The frame connecting elements 43 are each arranged at the scaffolding frame 4. The details of these connections can be seen in fig. 3. The part of the scaffolding tower in fig. 2 described so far is formed by parts of a frame scaffolding. However, these parts of the frame scaffold have been partly interconnected with the scaffold node 1 according to the invention. The scaffold node 1 has a coupling element 3 next to a connecting sleeve 2 (which serves here for coupling scaffold frames 4 arranged one above the other). By means of the coupling element 3, further scaffold elements can be connected. In fig. 2, for example, two modular scaffold parts 6 are respectively mounted on two scaffold nodes 1, which are respectively connected to the coupling elements 3. Starting from the exemplary illustrated modular scaffold part 6, further scaffold elements (in particular modular scaffold parts 6) can be connected to the scaffold tower. As can be seen in fig. 2, the scaffold node 1 is used for simple connection of a frame scaffold with a modular scaffold. The scaffold section 100 according to the invention comprises at least one scaffold node 1 and a scaffold frame 4, and additionally further scaffold frames 4 or modular scaffold parts 6.

Fig. 3 shows another perspective view of the scaffold section 100 according to an embodiment of the invention. Fig. 3 shows an enlarged section of the scaffold from fig. 2. Centrally, a scaffold node 1 is arranged, which is connected to two scaffold frames 4 arranged one above the other. The two scaffolding frames 4 are pushed with their connecting ends 411 into the interior of the coupling sleeve 2. The connecting end 411 is visible in fig. 3 in the non-inserted state. The two scaffold frames 4 are pushed into the coupling sleeves 2 so that the respective frame rails 42 are located in the slots 22 of the scaffold node 1. In this case, the remaining sleeve wall 21 around the slot 22 rests over a large area against the connecting end 411 of the scaffolding frame 4. A stable and safe transmission of forces and moments between the scaffold frame 4 and the scaffold node 1 is thereby enabled. At the scaffolding frame 4, which is mounted together with the scaffolding node 1 from below, a frame diagonal 44 can be seen, which is fixedly connected here with the frame rail 42. The two scaffolding frames 4 connected to the scaffolding node 1 are each connected to a support strut 51 of the support strut cross 5. Only the respective ends of these strut rods 51 can be seen in fig. 3. The strut rods 51 are fixed to the frame connection elements 43 arranged on the vertical rods 41, respectively. The frame connecting element 43 is here fixedly arranged to the vertical rod 41. The connection between the frame connection elements 43 and the strut rods 51 is made detachable, so that the strut rods 51 can be mounted together with the scaffolding frame 4 when building the scaffolding section 100 and can be detached from the scaffolding frame 4 when disassembling the scaffolding section 100. The frame connecting element 43 is here realized as a tilting finger. Of course, the frame connecting elements 43 can also be arranged on the frame rails 42. It is also possible that the frame connection element 43 has a different shape than that shown in fig. 3. The scaffold node 1 comprises a coupling element 3, which is here arranged in the middle of the connecting sleeve 2. The coupling element 3 is realized in the embodiment shown as a connecting disc 31. Two modular scaffold parts 6 (which are directed to the right front and right rear, respectively) are connected to the coupling element 3. The two modular scaffold parts 6 are here the frame rails of the modular scaffold. Alternatively or additionally, further modular scaffold parts 6 can also be connected to the coupling element 3. The modular scaffold parts 6 each have a connection interface 61 at their ends. The connection interface 61 is designed such that it can be detachably connected with the receiving groove 312 of the connection pad 31. In fig. 3, the modular scaffold part 6 is fixed to the coupling element 3 such that it extends radially from the connecting sleeve 2. It is however also possible for the modular scaffold part 6 to be fixed on the coupling element 3 such that it extends in other spatial directions.

Fig. 4 shows a perspective view of a portion of the scaffold section 100 according to an embodiment of the invention. A portion of the scaffold section 100 is seen in the build state in fig. 4. Centrally, a scaffold node 1 is arranged, which scaffold node 1 is connected on its underside to a scaffold frame 4. The coupling end 411 of the scaffolding frame 4 arranged at the lower part has been inserted into the downwardly facing end opening 23 of the coupling sleeve 2. The frame rails 42 of the scaffolding frame 4 arranged in the lower part are introduced into the downwardly oriented slits 22. In the illustrated state, the upwardly facing surface of the frame rail 42 stops at the end of the lower slot 22 facing the coupling element 3. By means of such a stop, a correct positioning between the scaffold node 1 and the scaffold frame 4 arranged below is ensured in a simple manner. Above the scaffold node 1 there can be seen a further scaffold frame 4, which is not yet coupled with the scaffold node 1. The upper-arranged scaffolding frame 4 has a fixing opening 412, which is realized here as a circular opening. The fixing opening 412 is provided for establishing an additional form-fitting connection with the scaffold node 1. Here, a fixing opening 412 is arranged in the vertical rod 41 between the downwardly facing end of the connecting end 411 and the frame rail 42. Starting from the state shown in fig. 4, the scaffolding frame 4 is moved downwards in order to establish a connection with the scaffolding node 1. In this case, the protruding connection end 411 (which is part of the vertical rod 41) is introduced into the upwardly facing end opening 23 of the connection sleeve. In the further course of this introduction, the region of the frame crossbar 42 which is arranged in the vicinity of the connection point between the vertical bar 41 and the frame crossbar 42 is introduced into the upwardly facing slit 22 and is moved further therein. This insertion of the upper scaffolding frame 4 continues until the downward facing face of the frame rail 42 is stopped at the end of the upper slot 22 oriented toward the coupling element 3, or the two end faces of the two connection ends 411 of the scaffolding frame 4 abut inside the connection sleeve 2. In this state the upper scaffold frame 4 is also coupled with the scaffold node 1. This coupled state can be seen in the cross-sectional view of fig. 5.

Fig. 5 shows a cross-sectional side view of a portion of the scaffold section 100 according to an embodiment of the invention. Fig. 5 shows a section of the foot link section 100 in the installed state, which is also shown in fig. 4. In fig. 5, it can be seen that the two connection ends 411 of the upper and lower scaffolding frames 4, 4 are introduced into the interior of the connecting sleeve 2. The end sides or end faces of the two connecting ends 411 bear against one another here and lie one above the other. This makes it possible to transmit forces in the vertical direction directly between the two end sides of the connecting end 411. Alternatively, a projection may be provided inside the connecting sleeve 2, against which the end side of the connecting end abuts. In this case, forces in the vertical direction are first transmitted from the connecting end 411 via the projection to the scaffold node 1. In the further course of this, this force is again transmitted from the scaffold node 1 via the projection to the end side of the second connection end 411. It can also be seen in fig. 5 that the respective locking openings 26 and the respective securing openings 412 are aligned or equally arranged with respect to each other. In the illustrated state, the plug element 7 can be inserted into the respective locking opening 26 and fixing opening 412 in order to establish a form-fitting connection. The corresponding plug elements 7 are also shown aligned with the openings beside the scaffold node 1. Such a pinned connection between the scaffolding node and the scaffolding frame avoids that the scaffolding frame 4 is inadvertently pulled out of or falls out of the scaffolding node 1. However, such a pin connection is not mandatory for the mounting of the scaffold section 100.

Fig. 6 shows a perspective view of a scaffold node 1 according to another embodiment of the invention. The embodiment shown in fig. 6 differs from the embodiment shown in fig. 1 in that the connecting sleeve 2 has only one slit 22. The slot 22 has a slot length SL that exceeds half of the overall sleeve length 24. In this embodiment, the slot 22 also opens into the end opening 23. In this embodiment, the scaffold node 1 also has a coupling element 3, which is realized here as a coupling disc 31. The coupling element 3 surrounds the connecting sleeve 2 only in a partial region, in the circumferential direction of the connecting sleeve 2. The coupling element 3 is interrupted in the circumferential region of the connecting sleeve 2, in which region the slit 22 is provided. Thereby, the coupling element 3 does not prevent the frame rail 42 from being introduced into the slit 22. Here, the coupling element 3 is arranged centrally with respect to the overall sleeve length 24. The slit 22 extends in the longitudinal direction of the connecting sleeve 2 through the region in which the coupling element 3 is fixed at the outer circumference of the connecting sleeve 2. The slot length SL is therefore greater than the distance from the end face 27 of the connecting sleeve up to the middle of the connecting element 3. In the embodiment of the scaffolding node 1 shown in fig. 6, it is proposed to couple only one scaffolding frame 4. The connecting end 411 of the scaffolding frame 4 can be introduced into the upwardly facing end opening 23, wherein the frame rail 42 of the scaffolding frame 4 is introduced into the slot 22. The scaffolding frame 4 can be introduced into the connecting sleeve 2 until the frame rail 42 is stopped at the downward facing end of the slot 22. In this state, the scaffold node 1 and the scaffold frame 4 can be correctly positioned relative to each other. The embodiment shown in fig. 6 has two locking openings 26, which fulfill the same function as in the previously described embodiments. The coupling element 3 of the embodiment shown in fig. 3 is a further scaffold element, in particular a modular scaffold part 6, coupled thereto in the same way as the other embodiments described above. For the embodiment shown in fig. 6, the relative position of the scaffold frame 4 and the scaffold node 1 is formed differently than in the previously described embodiments. This can be seen in fig. 7.

Fig. 7 shows a perspective view of a part of another embodiment of a scaffold section 100 according to the invention. Fig. 7 shows the scaffolding node 1 according to the embodiment of fig. 6, into which scaffolding node 1a scaffolding frame 4 is inserted from above. The connecting end 411 of the vertical rod 41 is introduced into the connecting sleeve 2 until the downward face of the frame rail 42 is stopped at the downward end of the slot 22. It can be seen that the locking openings 26 of the connecting sleeve 2 are positioned to be identical or aligned with the securing openings 412 of the connecting end 411. In the state shown in fig. 7, the plug elements 7 can be introduced into the locking openings 26 and the fixing openings 412 and thus the scaffold node 1 is pinned together with the scaffold frame 4. As can be seen clearly in fig. 7, in the coupled state, the central axis of the frame rail 42 is arranged to the middle of the coupling element 3 in the longitudinal direction of the connecting sleeve 2. Thus, the frame rail 42 is positioned to the same height as the coupling element 3. In contrast, for the embodiment shown in fig. 3, there is a distance between the coupling element 3 and the frame rail 42 in the longitudinal direction of the connecting sleeve 2. The relative connection positions for the modular scaffold parts 6, which are provided by the coupling elements 3, differ between embodiments. This fact can be used for combining and connecting scaffolding frames 4 having different sizes and mesh sizes with each other.

Fig. 8 shows a perspective view of an embodiment of a scaffold node 1 according to an embodiment of the invention. In the embodiment of the scaffold node 1, the coupling element 3 is not formed by the connection plate 31 as in the other embodiments. The embodiment of the scaffold node 1 shown has a coupling sleeve 2, which coupling sleeve 2 is similar to the coupling sleeves 2 of the other embodiments. For connection to further scaffolding elements, the embodiment shown has two cup-shaped locking elements 301a and 301b, which form the coupling element 3. Between the two cup-shaped lock elements 301a and 301b, a horizontal beam 304 (which is a modular scaffold part 6) is connected with the scaffold node 1, which scaffold node 1 is directed towards the front left in the view. The connecting sleeve 2 is arranged as in the previous embodiment such that the vertical rods 41 are pushed into the interior of the connecting sleeve 2 from above and below. The two cup-shaped lock elements 301a and 301b are constructed in the form of rims. The two cup-shaped lock elements 301a and 301b are designed to be rotationally symmetric around a central axis. Which coincides with the central axis MA of the coupling sleeve 2. The cup-shaped locking element 301a, which is arranged further below the connecting sleeve 2, has an inner diameter on its downwardly facing side, which inner diameter corresponds approximately to the outer diameter of the connecting sleeve 2. In contrast, the further upward inner diameter of the cup-shaped lock element 301a is selected to be larger, so that there is a distance or gap between the inner diameter of the cup-shaped lock element 301a and the outer diameter of the connecting sleeve 2 in the upward direction. In this gap, the end piece of the horizontal transverse member 304 is introduced. The cup-shaped locking element 301a arranged in the lower region thereof is fixedly connected to the connecting sleeve. The cup-shaped lock element 301b arranged at the upper portion corresponds to the cup-shaped lock element 301a arranged at the lower portion. However, the cup-shaped locking element 301b arranged at the upper portion is not fixedly connected with the connecting sleeve 2, but is mounted so as to be axially displaceable relative thereto. To connect with the horizontal cross member 304, first (as shown in fig. 8), the upper cup-shaped locking element 301b is pushed upwards relative to the connecting sleeve 2. Thereby, a larger distance is created between the two cup-shaped lock elements 301a and 301 b. In the illustrated state, the horizontal crosspiece 304 is inserted with a correspondingly formed end region into the gap between the lower cup-shaped locking element 301a and the outer wall of the connecting sleeve 2. Finally, the upper cup-shaped lock element 301b is pushed down along the connecting sleeve 2, so that the gap between the inner diameter of the upper cup-shaped lock element 301b and the outer diameter of the connecting sleeve 2 also surrounds the upper part of the end region of the horizontal cross member 304. In this state, in which the two cup-shaped lock elements 301a and 301b are pushed together and enclose the end regions of the horizontal beam 304, the horizontal beam 304 is fixedly connected with the scaffold node 1.

Fig. 9 shows a perspective view of an embodiment of a scaffold node 1 according to an embodiment of the invention. In this embodiment too, the connection disc 31 is not present. In contrast, the disk 303 as coupling element 3 is fixedly connected to the coupling sleeve 2 for connection to further scaffold elements. For the embodiment shown, the disc 303 is mounted in the middle of the connecting sleeve. A plurality of substantially wedge-shaped grooves are formed in the disc 303, and penetrate the disc 303. These recesses are used for connecting further scaffold elements, in particular modular scaffold parts 6, for example horizontal cross beams 305, which are here oriented towards the left and the front. The disc 303 has on its outer circumference an edge protruding in the longitudinal direction of the coupling sleeve 2. The horizontal cross-member 305 has an end region which at least partially corresponds to a negative of the shape of the disc 303. This end region can thereby be connected to the disk 303 in a form-fitting manner. Thus, in order to fix the horizontal beam 306 on the scaffold node 1, a crossbar element is inserted in the end region of the horizontal beam 305. The cross-bar element 305 penetrates the end region and one of the grooves in the disc 303. Thereby, the horizontal beam 305 is more firmly fixed to the disc 303 and thus to the scaffold node 1.

Fig. 10 shows a perspective view of an embodiment of a scaffold node 1 according to an embodiment of the invention. In the embodiment of the scaffold node 1 shown, the connection disc 31 is likewise absent. For connecting further scaffold elements, in the embodiment shown, four wedge-shaped locking pockets 302 as coupling elements 3 are arranged uniformly on the circumference of the outer surface of the connecting sleeve 2. Towards the left and to the front, a horizontal cross member 306 can be seen, which horizontal cross member 306 has an end region facing the connecting sleeve 2. This region is implemented as wedge-shaped and matches the wedge-lock pocket 302. To connect the horizontal beam 306 with the scaffold node 1, the wedge-shaped end region of the horizontal beam 306 is introduced into the wedge-lock pocket 302. The horizontal cross member 306 is positively positioned into and secured with the wedge lock pocket 302 by the wedge shape of the end regions. In the embodiment shown, four wedge lock pockets 302 are arranged evenly (which means at a constant distance from each other) around the circumference of the connecting sleeve 2. Here, the wedge lock pocket 302 is made of sheet metal and is welded to the connecting sleeve 2.

List of reference numerals:

1 scaffold node

2 connecting sleeve

21 sleeve wall

22 gap

23 open at the end

24 overall sleeve length

25 sleeve diameter

26 locking opening

27 end face

3 coupling element

31 connecting disc

311 receiving surface

312 receiving recess

301a, 301b cup-shaped lock element

302 wedge lock bag

303 disc

304 horizontal beam

305 horizontal beam

306 horizontal beam

4 support scaffold frame

41 vertical rod

411 connecting end portion

412 fixed opening

42 frame rail

43 frame connecting element

44 frame diagonal member

5-column cross

51 post rod

6 modularization scaffold frame part

61 connecting interface

7 plug element

MA center shaft

SL, SL1, SL2 slot lengths

UW circumferential angle

Claims

1. A scaffold node (1) for connecting scaffold elements extending in different spatial directions, the scaffold node (1) comprising:

-a connection sleeve (2) provided as a coupling point for at least two scaffold elements, wherein the connection sleeve (2) has a sleeve wall (21), which sleeve wall (21) at least partially encloses a hollow interior of the connection sleeve (2) and has a central axis (MA) which extends in the direction of the longest dimension of the connection sleeve (2) and is arranged in the middle thereof, seen in top view of an end face (27) of the connection sleeve (2),

-at least one coupling element (3) for connecting the scaffold node (1) with other scaffold elements, wherein the coupling element (3) is connected with the sleeve wall (21),

wherein the connecting sleeve (2) has at least one slot (22), wherein the slot (22) is formed in the sleeve wall (21), extends parallel to the central axis (MA) with a Slot Length (SL), and opens into an end opening (23) arranged at an end face (27) of the connecting sleeve (2), and wherein the sleeve wall (21) surrounds the central axis (MA) in the direction of the Slot Length (SL) with a circumferential angle (UW), which is greater than 270 °, preferably greater than 300 °.

2. Scaffolding node (1) according to claim 1, characterized in that the coupling element (3) surrounds the connection sleeve (2).

3. Scaffolding node (1) according to any of the previous claims, characterized in that the Slot Length (SL) is at least 0.5 times larger, in particular at least 1.2 times larger, than the inner diameter of the connection sleeve (2) and/or that the Slot Length (SL) is larger than the sleeve diameter (25), in particular larger than twice the sleeve diameter (25).

4. Scaffolding node (1) according to any of the previous claims, characterized in that the overall sleeve length (24) of the connection sleeve (2) is 2 to 5 times, in particular 3 times, larger with respect to the sleeve diameter (25) and/or that the overall sleeve length (24) is at least 200mm, preferably at least 300 mm.

5. The scaffolding node (1) according to any one of the preceding claims, characterized in that the slot (22) has two longitudinal borders extending substantially parallel to each other in relation to the sleeve wall (21) and has a curved transition portion between the longitudinal borders at its end remote from the end face (23).

6. Scaffolding node (1) according to any of the previous claims, characterized in that two slits (22) are provided, which open into two opposite end openings (23), respectively, and that the two slits (22) extend parallel to the central axis (MA) with a respective slit length (SL1, SL2) in the direction of the centre line of the connecting sleeve, and/or that two slits (22) are arranged starting from the respective end openings (23), wherein the slits (22) are arranged parallel to each other or aligned with each other.

7. Scaffolding node (1) according to any of the previous claims, characterized in that the Slot Length (SL) is larger than half the overall sleeve length (24) of the connection sleeve (2).

8. Scaffolding node (1) according to any of the previous claims, characterized in that the coupling element (3) is realized as a coupling disc (31), wherein the coupling disc (31) has a receiving face (311) with a plurality of receiving recesses (312), and the receiving recesses (312) are arranged to be connected with other scaffolding elements, in particular with modular scaffolding components (6), and the coupling disc (3) is fixedly connected with the connection sleeve (2), and the receiving face (311) is oriented substantially perpendicular to the central axis (MA) of the connection sleeve (2).

9. Scaffolding node (1) according to any of the previous claims, characterized in that the coupling element (3) protrudes beyond the connection sleeve (2) in the circumferential direction of the connection sleeve (2) in the area around the slot (22) over a distance which is smaller than in the other areas.

10. Scaffolding node (1) according to any of the previous claims, characterized in that the connection sleeve (2) has at least one locking opening (26), which locking opening (26) passes radially inwards through the sleeve wall (21) of the connection sleeve (2), wherein the locking opening (26) is arranged on the side of the slot (22) facing away from the end opening (23).

11. A scaffold section (100) with at least one scaffold node (1) according to any of the preceding claims, further comprising:

-at least one scaffolding frame (4) comprising at least two vertical bars (41) and two frame rails (42), wherein the ends of the frame rails (42) are fixedly connected with one of the vertical bars (41), respectively, such that in the circumferential direction, vertical bars (41) and frame rails (42) are alternately arranged around the scaffolding frame (4), wherein the ends of the vertical bars (41) protrude beyond the frame rails (42) and form connecting ends (411),

wherein one of the connection ends (411) is inserted into a connection sleeve (2) of the scaffold node (1) and a frame rail (42) connected with the connection end (411) is arranged into a slot (22) of the connection sleeve (2),

-at least one further scaffold element connected to the scaffold node (1), wherein the further scaffold element is formed by a further scaffold frame (4) inserted into the connecting sleeve (2) and/or by a modular scaffold component (6) connected to the connecting element (3).

12. Scaffolding section (100) according to claim 11, characterised in that the scaffolding node (2) is connected with two scaffolding frames (4), wherein the respective connection end (411) of each scaffolding frame (4) is introduced into the opposite end of the connection sleeve (2) and the frame rail (42) connected with the respective connection end (411) is arranged in the respective slot (22), the slot (2) opening into the respective end opening (23) of the connection sleeve (2).

13. The scaffold section (100) according to claim 11 or 12, characterized in that the two end faces of the two connection ends (411) introduced into the connection sleeve (2) meet each other or in that the two connection ends (411) introduced into the connection sleeve (2) are connected to each other in a form-fitting manner by means of at least one plug element, wherein the plug element is introduced into at least one locking opening (26) in the connection sleeve (2) and at least one fixing opening (412) in the connection ends (411), whereby forces acting parallel to the central axis (MA) can be transmitted between the two connection ends (411).

14. Scaffolding section (100) according to any of the claims 11 to 13, characterized in that the coupling element (3) is connected with at least one modular scaffold part (6), wherein the modular scaffold part (6) is formed by a horizontal crossbar or by horizontal diagonals or by vertical diagonals.

15. A method for constructing a scaffold section (100) according to any one of the preceding claims, the method comprising the steps of:

A) pushing the scaffold node (1) onto a first connection end (411) of a scaffold frame (4), wherein the sleeve wall (21) is pushed over the outer circumference of the connection end (411), and wherein a frame rail (42) of the scaffold frame (4) connected to the connection end (411) is introduced into a slot (22) in the connection sleeve (2) until the end of the slot (22) facing away from the end opening (23) is stopped at the frame rail (42);

B) connecting further scaffold frames (4) to the scaffold node (1) by pushing the connecting ends (411) of the further scaffold frames (4) into the ends of the connecting sleeves (2) opposite the first connecting ends (411) and/or connecting at least one modular scaffold component (6) to a coupling element (3) of the scaffold node (1).