DE202019102265U1 - Scaffold knot - Google Patents

Abstract

Scaffolding node (1) for connecting scaffolding elements running in different spatial directions, comprising - a connecting sleeve (2) which is provided as a coupling point for two vertical posts (41) or for a vertical post (41) with a spindle nut post (304), - a connecting disc (3 ), which has a receiving surface (31) with several receiving recesses (32) and the receiving recesses (32) are provided to be connected to further scaffolding elements, such as horizontal bars (42) or diagonal struts, the connecting disc (3) as a coupling element for the other scaffolding components are used, the connecting disk (3) being firmly connected to the connecting sleeve (2) and the receiving surface (31) being aligned essentially at right angles to the overall length (23) of the connecting sleeve (2) and the connecting sleeve (2) having at least one inner projection (25) which protrudes radially inward over an inner lateral surface (26) of the connecting sleeve (2).

Description

The invention relates to a scaffolding node for connecting scaffolding components running in different spatial directions, comprising a connecting sleeve which is provided as a coupling point for two vertical standards or for a vertical standard with a spindle nut shaft and a connecting disk which has a receiving surface with several receiving recesses and the receiving recesses are provided for to be connected to other scaffolding components, such as horizontal bars or diagonal struts, the connecting disk serving as a coupling element for the further scaffolding components. The invention also relates to a frame section with a frame node and further frame elements.

Scaffolding is used in the construction sector for various tasks. Façade scaffolding is used to design the exterior surfaces of buildings, for example to paint them. In civil engineering, scaffolding or shoring is used to bring various structural parts into position and to hold them there. Such structural parts can be, for example, precast concrete parts, steel girders or steel structures. Furthermore, elements required for the erection of structures, such as temporary structures or formwork, can be positioned with shoring. After all, scaffolding is also used in the service or inspection area, for example to safely bring workers in large process engineering plants, such as refineries, to the plant parts to be overhauled. In general, the basic requirements for scaffolding are that they must be easy to transport and easy to assemble. When erecting scaffolding, elements running vertically, elements running horizontally and usually also elements running diagonally must be connected to one another to form a load-bearing structure. Scaffolds are known from the prior art which have devices on their vertically extending elements which enable the connection of other elements, for example horizontally extending elements. The disadvantage of this solution is that these vertically extending elements have a relatively complex structure. In addition, these vertically extending elements are bulky due to the device for connecting further scaffolding elements and thus difficult to transport. In practice, it often happens that scaffolding elements from different manufacturers and from different years of construction are mixed together to form a scaffold on a construction site. The problem often arises that scaffolding elements from different manufacturers have different quality and different dimensional tolerances. Particularly in those areas in which forces have to be transmitted between scaffolding elements, different dimensional tolerances of the elements often lead to connection problems. It is possible that different scaffolding elements cannot be connected to one another at all or the connection between two elements is unstable or insufficiently stable.

The object of the invention is therefore to propose a solution to be able to securely connect scaffolding elements with different dimensional tolerances and at the same time to enable a quick and safe construction of a scaffolding.

• - eine Verbindungshülse, die als Koppelstelle für zwei Vertikalstiele oder für einen Vertikalstiel mit einem Spindelmutterstiel vorgesehen ist,
• - eine Verbindungsscheibe, die eine Aufnahmefläche mit mehreren Aufnahmeausnehmungen aufweist und die Aufnahmeausnehmungen dazu vorgesehen sind, mit weiteren Gerüstelementen, wie Horizontalriegeln oder Diagonalstreben, verbunden zu sein, wobei die Verbindungsscheibe als Koppelelement für die weiteren Gerüstbauteile dient,

wobei die Verbindungsscheibe mit dem Verbindungshülse fest verbunden ist und die Aufnahmefläche im Wesentlichen rechtwinklig zur Gesamtlänge der Verbindungshülse ausgerichtet ist und die Verbindungshülse zumindest einen Innenvorsprung aufweist, der radial nach innen über eine innere Mantelfläche der Verbindungshülse vorsteht.The object of the invention is achieved by a scaffolding node for connecting scaffolding elements extending in different spatial directions

• - a connecting sleeve, which is provided as a coupling point for two vertical stems or for one vertical stalk with a spindle nut handle,
• - A connecting disk which has a receiving surface with several receiving recesses and the receiving recesses are provided to be connected to further scaffolding elements such as horizontal bars or diagonal struts, the connecting disk serving as a coupling element for the further scaffolding components,

wherein the connecting disk is firmly connected to the connecting sleeve and the receiving surface is aligned essentially at right angles to the overall length of the connecting sleeve and the connecting sleeve has at least one inner projection which protrudes radially inward over an inner jacket surface of the connecting sleeve.

A scaffolding node according to the invention comprises a connecting sleeve, which is mostly vertically aligned when used, as well as a connecting disc fastened to this connecting sleeve essentially at right angles. The use case is to be understood as the state in which the scaffolding node is installed in a scaffolding and is used there to connect several scaffolding elements. The use case is also to be understood as the construction or dismantling of a scaffolding with a scaffolding node. The connecting sleeve is used to connect vertically extending frame elements. Such vertically extending framework elements are, for example, vertical standards. Such a vertical post can also be formed by a simple tube which is hollow on the inside. The connecting sleeve can be formed, for example, by a simple pipe section. The connecting sleeve serves as a coupling point between the scaffold elements, which are vertically oriented in the application. If two vertically extending framework elements are inserted into the connecting sleeve, they are through the Connecting sleeve coupled together. According to the invention, it is also possible to insert a spindle nut handle into the connecting sleeve and to couple it there with a vertical handle. Such a spindle nut handle is described in more detail below in connection with a frame section according to the invention.

A scaffold knot according to the invention further comprises a connecting disk which is firmly connected to the connecting sleeve. The connecting disk has a receiving surface. This receiving area is the largest area of the connecting disk. The receiving surface is usually much larger than the side surfaces of the connecting disk. The receiving surface is oriented essentially at right angles to the axis of symmetry or to the total length of the connecting sleeve. Several receiving recesses are arranged in the receiving surface, which are used to connect to other framework elements. These other framework elements are usually positively connected to the connecting plate and in particular to the surfaces of the receiving recesses and the receiving surface.

In the case of a scaffold node according to the invention, the connecting disk is firmly connected to the connecting sleeve. This means that the connecting disk and connecting sleeve form a rigid unit. The connecting sleeve is usually essentially cylindrical and hollow on the inside. The inner surface of the connecting sleeve is referred to as the inner jacket surface. When introducing vertically extending scaffolding elements, such as vertical posts, for example, the outer surfaces of these vertically extending scaffolding elements lie parallel to the inner jacket surface of the connecting sleeve. A scaffolding node according to the invention comprises at least one inner projection which protrudes radially in the direction of the interior of the connecting sleeve over the inner lateral surface. This inner projection is of essential importance for the function of the scaffold node according to the invention. Scaffolding elements that run vertically, such as vertical standards, have dimensional tolerances in their external dimensions. The cheaper these vertically extending scaffolding elements are produced, the greater the tolerances in their external dimensions. When building a scaffold, these dimensional tolerances give rise to problems of securely positioning and coupling the vertically running scaffolding elements to one another and thus achieving a targeted frictional connection in the scaffolding. The inner protrusion of a scaffold node according to the invention ensures a centering of vertical scaffold elements introduced into the connecting sleeve. The provision of several inner projections, which then cooperate during the centering, is particularly favorable for this centering. Because the inner protrusion protrudes beyond the inner jacket surface, an inserted vertically extending framework element rests against the inner protrusion. One or more inner projections can be arranged in a targeted manner at favorable locations in the interior of the connecting sleeve in order to achieve the desired centering of the vertically extending framework elements in the connecting sleeve. The centering that is achieved ensures that two vertically extending scaffolding elements, one of which is pushed into the scaffolding node from each side, are aligned with one another, thus enabling good and efficient force dissipation of vertical loads.

Horizontal loads can be introduced into the scaffolding node according to the invention on the one hand via the connecting disk. Usually, however, horizontally running scaffolding elements that are connected to the scaffolding node are designed in such a way that they touch the outer surface of the connecting sleeve in the assembled state. As a result, moments from connected, horizontally running scaffolding elements can also be introduced into the scaffolding node.

A scaffolding node according to the invention offers several advantages over the prior art: The scaffolding node is very simply constructed and has compact dimensions. As a result, the scaffolding node is simple to manufacture and easy to transport. In addition, a scaffolding node according to the invention enables the use of other scaffolding elements that are likewise very simply constructed. The scaffold node takes on the function of connecting or coupling scaffolding elements that are oriented in different directions. This function of the connection therefore does not have to be provided on the scaffolding elements themselves. In particular, the vertically running scaffolding elements, which in the prior art have devices for connecting other scaffolding elements, can be made much simpler when using a scaffolding node according to the invention. Vertical scaffolding elements, for example vertical posts, can be formed from simple pipe sections. Such pipe sections can easily be made from standard material. Depending on individual needs, the most varied of lengths of vertically running scaffolding elements can be easily connected to the scaffolding node. This results in a very simple adjustment of the scaffolding height or the distance between two scaffolding platforms. The vertically extending framework elements formed from simple pipe sections can also be stored and transported very easily, since they do not have any outwardly protruding elements. A scaffolding node according to the invention can also be used in other spatial directions running scaffolding elements are connected. This possibility allows two-dimensional and three-dimensional scaffolding structures to be built up quickly and easily with a scaffolding node from one-dimensional scaffolding elements. In this context, frame elements running one-dimensionally are to be understood as rod-shaped or tubular elements. In the prior art, scaffolding elements that run horizontally and diagonally are sometimes joined together to form prefabricated, two-dimensional frames. These prefabricated frames are then connected to vertically running scaffolding elements with devices, which creates the required three-dimensional scaffolding structure. The disadvantage of this concept with prefabricated frames is that these frames are significantly more bulky than one-dimensional scaffolding elements. Such frames are therefore uneconomical and impractical to transport. A scaffolding node according to the invention eliminates the need to provide two-dimensional prefabricated frames. A wide variety of one-dimensional scaffolding elements can be connected very quickly and easily to the scaffolding node and the required three-dimensional scaffolding structure can be created directly from one-dimensional scaffolding elements on site. The transport of the necessary scaffolding elements to the construction site is easier and more economical because the one-dimensionally designed scaffolding elements can be transported with a significantly higher packing density than two-dimensional structures such as frames. A scaffolding node according to the invention on the one hand results in a significantly simplified transport of a scaffolding and at the same time enables a simple and yet very adaptable construction of three-dimensional scaffolding structures.

In a first main embodiment of the invention it is provided that the at least one inner projection is formed by molding the wall of the connecting sleeve, the inner projection having a constant projection height inside the connecting sleeve in the longitudinal direction of the connecting sleeve, or the inner projection starting from the inner surface of the connecting sleeve continuously up to rises and falls to the protrusion height. In this embodiment, the inner projection does not have a sudden transition to the inner lateral surface. The inner protrusion is formed by molding the wall of the connecting sleeve. The wall is to be understood as the wall of the tubular connecting sleeve. Such shaping can be done, for example, by embossing or punching. In this embodiment, the inner projection consists of a partial area of the connecting sleeve, which receives its shape through a forming process. Usually, a pipe section made of a metal material is used as the basis for producing a connecting sleeve according to this embodiment, and the inner projection is then formed into the wall in a reshaping manner. A connecting sleeve with such an inner projection can therefore be produced very easily from inexpensive base material. In this embodiment, the inner projection runs along the entire length of the connecting sleeve and has a constant projection height. The protrusion height is to be understood as the amount by which the point of the inner protrusion that extends the furthest into the interior of the connecting sleeve protrudes beyond the inner circumferential surface. In an alternative embodiment, the inner projection does not run along the entire overall length, but rather extends over only part of the connecting sleeve in relation to the length. In this embodiment there is a smooth transition between the inner lateral surface and the inner projection. Starting from the inner circumferential surface, the protrusion height increases steadily up to the greatest protrusion height and on the other side of the protrusion height drops steadily again to the inner circumferential surface.

It is also provided that the at least one inner projection is designed as a longitudinal bead which extends over the entire length of the connecting sleeve. In this embodiment, the inner projection has a constant projection height. Such an inner projection designed as a longitudinal bead can be produced simply by stamping into the connecting sleeve from the outside. Such an inner projection leads vertically extending framework elements introduced into the connecting sleeve along the entire length of the connecting sleeve. The provision of three or more such inner projections is particularly advantageous, since the centering effect on the inserted framework elements is again significantly improved by a larger number of inner projections.

In a preferred embodiment of the proposal it is provided that two, advantageously three, particularly preferably four, inner projections designed as longitudinal beads are provided, which are evenly distributed in the circumferential direction on the inner lateral surface. A uniform distribution of several inner projections in the circumferential direction in the interior of the connecting sleeve is particularly favorable for a good centering of introduced scaffold elements in the scaffold node.

Furthermore, it is provided that the connecting sleeve is made in one piece and the connecting disk is fastened, in particular welded, to the outer jacket surface of the connecting sleeve. A particularly simple structure of a scaffold node is achieved in the embodiment described by a one-piece connecting sleeve with a connecting disk firmly connected to it.

In a further embodiment it is provided that the at least one inner projection is designed as an embossing point which has an embossing center and which, starting from the inner circumferential surface, rises steadily in all radial directions around the embossing center up to the projection height, the projection height being in the embossing center. In this embodiment, the inner projection is also formed by molding the wall of the connecting sleeve. This recess is made by embossing with a pointed embossing tool. This creates an inner projection designed as a stamping point in the interior of the connecting sleeve. This forming process creates a steady transition between the inner jacket surface and the inner protrusion designed as a stamping point. The inner protrusion has an embossing center at which the protrusion height is greatest. Around the embossing center, the height of the projection drops steadily down to the inner surface area. As a result of these smooth transitions, such an inner projection is particularly well suited to guiding a framework element, such as a vertical post, inserted into the connecting sleeve. Starting from the inner jacket surface, the framework element glides gently over the inner projection and is thus centered when it is inserted into the connecting sleeve. The production of an inner projection designed as a stamping point is also particularly simple, since, starting from a tubular connecting sleeve, only a simple stamping tool is required to produce the internal projection. Further components are not required for this.

In an advantageous embodiment, it is provided that several inner projections designed as embossing points are provided, which are arranged in at least two rings, the rings being aligned parallel to the receiving surface of the connecting disk and the rings being spaced from one another and the inner projections being uniformly attached along the rings in the circumferential direction the inner lateral surface are distributed. In this embodiment several inner projections are provided, which together guide and center a framework element introduced into the connecting sleeve. The inner projections are arranged in rings which run parallel to the connecting disk and parallel to the front ends of the connecting sleeve. The rings are not constructive elements but merely imaginary auxiliary lines to describe the arrangement of the inner protrusions. In this embodiment, the inner projections are arranged opposite one another in the interior of the connecting sleeve. This means that the maximum protrusion heights of the inner protrusions define a clear width inside the connecting sleeve that is smaller than the inside diameter of the connecting sleeve from one point on the inner jacket surface to a point on the inner jacket surface opposite this point. Inner projections arranged in this way thus reduce the clear width inside the connecting sleeve.

It is cleverly provided that four rings of inner projections designed as embossing points are provided, two of the rings being arranged at one end of the connecting sleeve and two further rings being arranged adjacent to the connecting disk. In this particularly preferred embodiment, four rings of inner projections are provided. In relation to the total length of the connecting sleeve, two rings are arranged in each half of the connecting sleeve. One ring of this is arranged in the vicinity of the front end of the connecting sleeve, another adjacent to the connecting disc. When inserting two vertically extending framework elements into the connecting sleeve, each of these framework elements thus rests against two rings of inner projections. Both scaffolding elements are statically and determinedly guided and centered safely. In this embodiment, too, the connecting sleeve is expediently made in one piece and the connecting disk is fastened, in particular welded, to the outer jacket surface of the connecting sleeve.

In a second main embodiment, it is provided that the at least one inner projection protrudes abruptly in relation to the inner jacket surface of the connecting sleeve and has at least one load-bearing surface which is provided to absorb loads oriented in the longitudinal direction of the connecting sleeve from a further frame component and which from its to the inner one The outer edge adjoining the outer surface has a protrusion height to its inner edge, which is oriented radially in the direction of the interior of the connecting sleeve, which is equal to or greater than the wall thickness of the connecting sleeve. In this embodiment, the inner projection is designed differently from the embodiments described above. There is a sharp-edged transition here between the inner surface of the connecting sleeve and the inner projection. The inner projection thus jumps out over the inner lateral surface. A steady transition, as in the previously described embodiments, does not exist here. As a result of this sudden protrusion of the inner projection, it is suitable for vertically extending framework elements introduced into the connecting sleeve to rest on this inner projection. The vertically extending scaffold elements thus transmit forces and loads directed in the vertical direction to the inner protrusion of the scaffold node. Thus, these forces and loads are introduced into the scaffold node. In the embodiments described above, these forces and loads are transferred directly from a vertically extending scaffold element to a scaffold element without going through the scaffolding node transferred to the end face in the connecting sleeve, further frame element. In order to absorb these forces and loads, the inner protrusion has a load-bearing surface in the described embodiment. This load-bearing surface is favorably oriented at right angles to the inner jacket surface of the connecting sleeve. Alternatively, the load-bearing surface can also be aligned inclined to the inner lateral surface. The protrusion height of the inner protrusion is significantly greater here than in the previously described embodiments. For the load-bearing surface to function reliably, the load-bearing surface must have a certain width, which corresponds to the protrusion height of the inner protrusion. It has been found to be particularly favorable that the projection height is equal to or greater than the wall thickness or wall thickness of the connecting sleeve. Such a protrusion height ensures that a tolerance-afflicted, vertically running frame element, which is pushed into the connecting sleeve, rests securely and stably on the load-bearing surface.

In a preferred embodiment it is provided that the at least one inner projection is part of the connecting disk, the connecting disk dividing the connecting sleeve into two parts and the end face of a part of the connecting sleeve being firmly connected to a receiving surface of the connecting disk. In this embodiment the inner projection is formed by a part of the connecting disk. This differs from the previously described embodiments, in which the inner projection is formed by molding the wall of the connecting sleeve. A sharp-edged transition between the inner circumferential surface and the inner protrusion can be achieved particularly easily if the inner protrusion is part of the connecting disk. In this embodiment, the connecting sleeve is made in two parts. One part of the connecting sleeve is firmly connected at the end to a receiving surface of the connecting disk. The connecting disk thus protrudes into the interior of the connecting sleeve and forms the inner projection there. This embodiment has the further advantage that vertical framework elements introduced into the connecting sleeve are in direct contact with the horizontally extending connecting disk. As a result, there is a good flow of forces through the scaffolding node, even in the horizontal or diagonal direction.

Furthermore, it is advantageously provided that the connecting disk has an in particular circular recess and at least a partial area outside this recess forms the inner projection. In this embodiment, a recess is advantageously provided in the middle of the connecting disk. This recess is used so that vertically extending frame elements can be pushed through the entire interior of the connecting sleeve. This is particularly important when a spindle nut shaft is to be inserted into the scaffolding node in conjunction with a scaffolding spindle. The scaffolding spindle can then be moved vertically through the recess in the connecting disk. The edge of the recess in the connecting disk also forms the inner projection in the interior of the connecting sleeve. The protrusion height or width of the inner protrusion can thus be adjusted by the dimensioning of the recess in the connecting disk. The shape and the diameter of the recess in the connecting disk is very easy to manufacture and influence, since the connecting disk is a flat component which can easily be processed by punching, laser cutting, drilling or the like. This embodiment thus combines the advantages of a simple structure with a cost-effective production at the same time.

In a further embodiment it is provided that the connecting sleeve is made in one piece and the inner projection is formed by an indentation running radially around the circumference of the connecting sleeve and the connecting disk is attached to the outer surface of the connecting sleeve. In this embodiment it is provided that an inner protrusion, which protrudes abruptly over the inner jacket surface of the connecting sleeve, is also realized by molding the wall of a one-piece connecting sleeve. For this purpose, a circumferential embossing is produced in the connecting sleeve. This impression then protrudes inwards and forms the inner projection, which also has a load-bearing surface. As previously described, loads and forces of an inserted vertically extending scaffolding element can then be introduced into the connecting sleeve and thus into the scaffolding node via this load-bearing surface generated by an impression. This embodiment has a simpler structure since it comprises a connecting sleeve made in one piece. However, the circumferential impression represents a massive deformation of the wall of the connecting sleeve, so that a corresponding device must be available for such an impression. In this embodiment, the connecting disk is attached to the connecting sleeve from the outside and does not divide the connecting sleeve into two parts.

It is advantageously provided that the connecting sleeve has an insertion bevel on at least one of its end faces. Such an insertion bevel is implemented, for example, by widening one end of the connecting sleeve in the form of a funnel. Such an insertion slope facilitates the insertion from the vertical running frame elements in the connecting sleeve. This is particularly advantageous since the scaffolding elements often have to be introduced into the scaffolding node at a great height and in hard-to-reach places. An insertion bevel can also be provided at both ends of the connecting sleeve. An insertion bevel can be attached to scaffolding nodes according to all of the embodiments described above.

The features described below can all be combined in connection with any desired embodiment described above.

It is also provided that the overall length of the connecting sleeve is greater by a factor of 2 to 5 in relation to the sleeve diameter. In comparison to connecting elements for scaffolding known from the prior art, the total length of the connecting sleeve and thus of the scaffolding node is short. As a result, a scaffolding node has compact dimensions and is therefore easy to transport and easy to handle.

In a preferred embodiment it is provided that the connecting disk is arranged centrally in the longitudinal direction of the connecting sleeve. With such a central arrangement, the scaffolding node is constructed symmetrically in the longitudinal direction. This symmetrical structure is particularly favorable for a statically determined introduction and discharge of forces into and out of the scaffold node. Of course, the connecting disk can also be arranged at a different location along the entire length of the connecting sleeve.

Furthermore, it is provided that the total length of the connecting sleeve on each side of the connecting disc up to the end of the connecting sleeve is greater than the sleeve diameter by a factor of 0.9 to 2.4. This feature also ensures compact dimensions of the scaffold node with at the same time safe power transmission in the application.

In an advantageous embodiment, it is provided that the receiving recesses in the plan view of the connecting disk and the receiving surface are arranged regularly in the circumferential direction, in particular at regular angles to one another with respect to the axis of symmetry of the connecting sleeve. The receiving recesses in the connecting disk are intended to be connected in a form-fitting manner to horizontally extending scaffolding elements connected to the scaffolding nodes. For this purpose, several receiving recesses are expediently provided, which are regularly arranged around the circumference of the connecting disk. In this way, several horizontally running scaffolding elements can be connected to the scaffolding node. A regular arrangement of the receiving recesses ensures a defined flow of force through the scaffold node.

It is cleverly provided that the connecting sleeve has at least one locking opening in its end regions at each end, which is directed radially inward through the wall of the connecting sleeve. Such a locking opening is used to secure vertically extending framework elements introduced into the connecting sleeve. Similar openings, referred to there as securing openings, are advantageously arranged in the framework element. After the framework elements have been introduced into the connecting sleeve, the locking opening is brought into overlap with a securing opening. A plug-in element is then inserted into these overlapping openings for securing purposes. The plug-in element advantageously has a smaller diameter than the openings, as a result of which play arises in this form fit.

This play avoids static overdetermination when connecting the scaffolding node to the vertically extending scaffolding elements that have been introduced.

In a further preferred embodiment it is provided that the locking opening is arranged at a distance from the receiving surface of the connecting disk which corresponds to at least the factor 0.5 of the sleeve diameter, the locking opening in the circumferential direction of the connecting sleeve to a first receiving recess at an angle of 45 ° is arranged offset. To secure the vertically extending scaffolding elements in relation to the scaffolding node, the locking opening must be easily accessible and, in particular, must not be covered by scaffolding elements arranged on the scaffolding node. For easy access to the locking opening, it is arranged at a distance from the connecting disk. In the circumferential direction of the connecting sleeve, the locking opening is arranged offset from one or preferably all of the receiving recesses in the connecting disk. This positioning of the locking opening allows it to be reached particularly easily when the plug-in element is inserted.

• - zumindest einen Vertikalstiel, wobei der Vertikalstiel in die Verbindungshülse des Gerüstknotens eingesteckt ist,
• - zumindest einen Horizontalriegel, der mit einer der Aufnahmeausnehmungen der Verbindungsscheibe des Gerüstknotens formschlüssig verbunden ist, wobei ein am Ende des Horizontalriegels angeordnetes Formelement in eine der Aufnahmeausnehmungen eingeführt ist und zumindest ein Teil der dem Gerüstknoten zugewandten Stirnfläche des Horizontalriegels an der Verbindungshülse anliegt.

The object of the invention is also achieved by a framework section comprising at least one framework node according to one of the embodiments described above, further comprising

• - At least one vertical post, wherein the vertical post is inserted into the connecting sleeve of the scaffold node,
• - At least one horizontal bar, which with one of the receiving recesses of Connecting disk of the scaffolding node is positively connected, a shaped element arranged at the end of the horizontal bolt being inserted into one of the receiving recesses and at least part of the end face of the horizontal bolt facing the scaffolding node rests on the connecting sleeve.

A scaffold section according to the invention is based on a scaffold node according to one of the embodiments described above and furthermore has further scaffold elements. In general, the advantages described above for the scaffold node also apply to the scaffold section according to the invention. Further advantages result from the interaction of the other scaffolding elements with the scaffolding node. A framework section according to the invention is part of a framework. The framework can also have a plurality of framework sections according to the invention.

A simple and safe construction of the frame section in the vertical direction is achieved by a plug connection between the frame node and one or more vertical posts, the vertical post being inserted into the connecting sleeve. The term vertical post is generally understood to mean scaffolding elements that are aligned vertically in the application case and are suitable for transmitting weight forces and moments. When the vertical post is inserted into the connecting sleeve, the outer surface of the vertical post is guided through the at least one inner projection on the inner lateral surface. It is generally provided that the vertical post is inserted into the scaffolding node approximately up to the position at which the connecting disk is attached to the connecting sleeve. A second vertical post is advantageously inserted from the other, opposite side of the connecting sleeve. The two inserted vertical posts then either rest with their end faces on the inner projection or touch one another. In both cases, a flow of force through the scaffold node is ensured. A number of inner projections are advantageously provided in the interior of the connecting sleeve, which center and guide the two inserted vertical posts. This compensates for dimensional tolerances on the outer dimensions of the vertical posts and ensures reliable power transmission in the vertical direction from one vertical post to the other.

Furthermore, a framework section according to the invention comprises at least one horizontally extending framework element in the form of a horizontal bar. This horizontal ledger is positively connected to the connecting disk of the scaffolding node. This connection takes place in that a shaped element of the horizontal bar is inserted into a receiving recess in the connecting disk and is fixed there. The horizontal bar is shaped at its end facing the scaffolding node in such a way that an end face arranged there rests against the outer jacket surface of the connecting sleeve. Due to this concern, horizontally acting forces, vertically acting forces and torques can be introduced into the scaffolding node from the horizontal ledger. The same naturally applies in the other direction from the scaffolding node to the horizontal ledger.

Furthermore, it is conveniently provided that the vertical style has at least one securing opening at its end facing the scaffolding node, the securing opening corresponding in shape and size to the locking opening of the scaffolding node and a plug-in element being provided which is inserted into the securing opening and locking opening and vertical post and scaffolding node axially and radially to each other. In this embodiment, the vertical post inserted into the connecting sleeve is secured. For this purpose, at least one locking opening is provided in the connecting sleeve, the shape and size of which corresponds to a securing opening in the vertical post. When the vertical post is inserted into the connecting sleeve, the two openings are brought into overlap so that they are aligned. A plug-in element is then inserted into the two aligned openings to secure it. This creates a form fit between the connecting sleeve, vertical post and plug-in element. This securing is important so that the vertical post cannot be accidentally or unintentionally pulled out of the scaffolding node.

It is expediently provided that there is play between the plug-in element and the locking opening and / or between the plug-in element and the securing opening, so that the vertical stem in the connecting sleeve can be moved in its longitudinal direction within the limits of the play. In this embodiment there is play between the locking opening and / or the securing opening and the plug-in element. The securing of the vertical post in the connecting sleeve is therefore not rigid and does not fix the vertical post firmly in the connecting sleeve. This clearance is provided in order to avoid static overdetermination. Furthermore, the play is intended to prevent the flow of force from flowing from the vertical post through the plug element into the connecting sleeve. In a scaffold node and scaffold section according to the invention, it is provided that the force flow either flows from an inserted scaffold element directly to the next scaffold element or the force flow is initiated from an inserted scaffold element via the inner projection into the scaffold node and from the scaffold node in turn via the inner projection to another inserted scaffold element. The fuse via the plug element is not intended to dissipate the actual vertical loads on the scaffolding section. The security only serves to prevent the unintentional pulling out of scaffolding elements from the scaffolding node.

In a further embodiment of a frame section it is provided that at least one spindle nut shaft is provided which comprises a tubular shaft shaft with a spindle nut fastened thereon in an axially aligned manner, the shaft shaft being inserted into the connecting sleeve. In this embodiment, as an alternative to a second vertical post, a spindle nut post is inserted into the scaffold node. In the connecting sleeve there is then a power transmission from the vertical handle to the spindle nut handle. The spindle nut handle comprises a handle shaft, the outside diameter of which corresponds to the outside diameter of a vertical handle. The scaffold node is therefore compatible for inserting both vertical standards and spindle nut standards. A spindle nut handle is in turn intended to be connected to a scaffolding spindle which is screwed into the spindle nut handle. By turning the spindle nut handle, the axial position of the scaffolding spindle is changed relative to the spindle nut handle. As a result, a frame section can be adapted very easily, for example, to unevenness in the ground.

It is provided that the end of the handle shaft facing away from the spindle nut is supported on the inner projection of the connecting sleeve or on the end face of the vertical handle inserted into the connecting sleeve. The flow of force from the spindle nut handle into the scaffolding node and vice versa is provided in a manner analogous to a vertical handle. The handle shaft acts like the face of a vertical handle. Thus, a frame section according to this embodiment is very flexible and enables various vertically extending frame elements to be connected to the frame node. A single type of scaffold node can thus be used at different points to meet different requirements in the scaffold section or in the scaffold. This significantly simplifies the logistics of materials for setting up scaffolding. One type of scaffolding node can be used for different tasks.

It is preferably provided that the length of the handle shaft corresponds to a factor of 0.5 to 0.8 of the total length of the connecting sleeve. The handle shaft is expediently just long enough that its end, in the inserted state into the connecting sleeve, just protrudes beyond the end face of the connecting sleeve. The spindle nut arranged at this end facing away from the interior of the connecting sleeve can be rotated without interference because it is not in contact with the front end of the connecting sleeve. At the same time, the spindle nut handle is very compact with this length dimensioning and can therefore be easily transported and stored. Furthermore, the handling of such a short spindle nut handle is very easy. The factor of 0.5 to 0.8 of the total length of the connecting sleeve means that the handle shaft is at least as long as half the total length of the connecting sleeve and advantageously protrudes a little over half the length of the connecting sleeve.

• 1 eine perspektivische Ansicht eines Gerüstabschnittes mit einer ersten Ausführungsform eines Gerüstknotens,
• 2 eine perspektivische Explosionsansicht des Gerüstabschnittes aus 1,
• 3 eine Seitenansicht einer ersten Ausführungsform eines Gerüstknotens,
• 4 eine Draufsicht auf eine erste Ausführungsform eines Gerüstknotens,
• 5 eine perspektivische Ansicht einer zweiten Ausführungsform eines Gerüstknotens,
• 6 eine Seitenansicht einer zweiten Ausführungsform eines Gerüstknotens,
• 7 eine Draufsicht auf eine zweite Ausführungsform eines Gerüstknotens,
• 8 eine perspektivische Explosionsansicht eines Gerüstabschnittes mit einer dritten Ausführungsform eines Gerüstknotens,
• 9 eine perspektivische Explosionsansicht einer dritten Ausführungsform eines Gerüstknotens,
• 10 eine Draufsicht auf eine dritte Ausführungsform eines Gerüstknotens,
• 11 eine perspektivische Ansicht auf eine vierte Ausführungsform eines Gerüstknotens,
• 12 eine perspektivische Ansicht auf eine fünfte Ausführungsform eines Gerüstknotens,
• 13 eine perspektivische Ansicht auf eine sechste Ausführungsform eines Gerüstknotens,
• 14 eine perspektivische Explosionsansicht eines Gerüstabschnittes mit einem Spindelmutterstiel,
• 15 eine geschnittene Seitenansicht eines Gerüstabschnittes mit einem Spindelmutterstiel.

In the figures, embodiments of the invention are shown schematically. Show it

• 1 a perspective view of a scaffolding section with a first embodiment of a scaffolding node,
• 2 a perspective exploded view of the frame section from 1 ,
• 3 a side view of a first embodiment of a scaffold node,
• 4th a top view of a first embodiment of a scaffold node,
• 5 a perspective view of a second embodiment of a scaffolding node,
• 6th a side view of a second embodiment of a scaffold node,
• 7th a top view of a second embodiment of a scaffold node,
• 8th a perspective exploded view of a scaffold section with a third embodiment of a scaffold node,
• 9 a perspective exploded view of a third embodiment of a scaffolding node,
• 10 a top view of a third embodiment of a scaffolding node,
• 11 a perspective view of a fourth embodiment of a scaffold node,
• 12 a perspective view of a fifth embodiment of a scaffolding node,
• 13 a perspective view of a sixth embodiment of a scaffolding node,
• 14th a perspective exploded view of a frame section with a spindle nut handle,
• 15th a sectional side view of a frame section with a spindle nut handle.

In the figures, the same elements are provided with the same reference symbols. In general, the properties described apply to a Elements that are described for one figure also for the other figures. Directional indications as above or below relate to the figure described and are to be transferred accordingly to other figures.

1 shows a perspective view of a frame section 100 with a first embodiment of a scaffolding node 1 . The frame section shown 100 is part of a scaffolding that includes additional scaffolding elements. A section of scaffolding 100 can also be arranged several times in a frame. Shown centrally in the middle of the frame section 100 is a scaffold knot according to the invention 1 according to a first embodiment. The scaffolding knot 1 has a vertically extending connecting sleeve 2 on. In this connecting sleeve 2 is a vertical post from above and below 41 plugged in. In the illustrated first embodiment of a scaffolding node 1 touch the facing end faces of the two vertical posts 41 . These two end faces are on top of each other and directly transfer vertical forces between the two vertical posts 41 . For axial securing of the vertical standards 41 in the connecting sleeve 2 are two plug-in elements 5 provided at the same time in locking openings 21st in the connecting sleeve 2 and in fuse openings 411 in the vertical posts 41 are introduced. This creates a form fit between the vertical posts 41 , the scaffolding node 1 and the plug-in elements 5 . Details on this connection are in 2 shown. The form fit described here has play, so that the two vertical stems 41 in a small area in the axial direction of the connecting sleeve 2 are movable relative to the connecting sleeve. This game is used to compensate for tolerances in the vertical posts 41 and the connecting sleeve 2 .

The scaffolding knot 1 further comprises a connecting disk 3 that are firmly attached to the connecting sleeve 2 connected is. In the case shown is the connecting disk 3 with the connecting sleeve 2 welded from the outside. The connecting disc 3 has a receiving surface facing upward in the illustration 31 on. In this recording area 31 there are four receiving recesses 32 brought in. The recording area 31 is perpendicular to the central axis of the connecting sleeve 2 arranged.

In one of the four receiving recesses 32 the connecting disc 3 is a feature 421 a horizontal bar running to the front left in the illustration 42 brought in. The horizontal ledger 42 is thus releasable with the connecting disc 3 connected. The horizontal ledger 42 can on its the scaffolding knot 1 remote side are connected to various other scaffolding elements. For example, this side facing away can be attached to a further scaffolding node 1 attached. The frame section shown 100 thus has elements that run both in the vertical direction of a framework and elements that run in the horizontal direction. The scaffolding knot 1 is thus an interface between scaffolding elements running in different directions.

2 shows an exploded perspective view of the framework section 100 out 1 . In 2 are the in 1 elements shown dismantled and shown side by side. There is a central scaffolding node 1 according to a first embodiment of the invention. The scaffolding knot 1 comprises a connecting sleeve which is vertically oriented in the illustration 2 and a horizontally arranged connecting disk firmly connected to it 3 . In the quarter facing upwards and the quarter facing downwards of the connecting sleeve 2 are several circular locking openings 21st appropriate. These locking openings 21st penetrate the wall of the connecting sleeve 2 . The connecting sleeve 2 has in the illustrated embodiment four inner projections 25th on, the radially inward over the inner lateral surface 26th the connecting sleeve 2 stand out. These inner protrusions 25th are designed here as longitudinal beads and run along the entire length of the connecting sleeve 2 . The inner protrusions 25th are uniform in the circumferential direction on the inner lateral surface 26th distributed. In relation to the central axis of the connecting sleeve 2 take the inner protrusions 25th an angle of 90 ° to each other. Of course, a different number of such inner projections can also be used 25th on the inner surface 26th be arranged.

Above and below the scaffold node 1 is one end of a vertical post 41 shown. The outside diameter of the vertical stems 41 is slightly smaller than the clearance between the inner projections 25th the connecting sleeve 2 . This makes the vertical stems 41 into the connecting sleeve 2 insertable. To get away from the in 2 the state shown in 1 To get to the assembled state shown, the vertical stems 41 into the connecting sleeve 2 inserted until the downward facing face of the upper vertical stem 41 on the upward facing face of the lower vertical post 41 meets. In the assembled state, the transfer of vertical forces takes place directly between the touching end faces of the two vertical posts 41 . Near the face of the two vertical stems 41 are several circular locking holes 411 brought in. These fuse openings 411 are positioned in relation to each other in the same way as the locking openings 21st in the connecting sleeve 2 . After inserting the vertical posts 41 into the connecting sleeve 2 the fuse openings 411 in coverage with the locking openings 21st . In this covered state, the securing openings are aligned 411 with the locking openings 21st . This creates continuous recesses in the connecting sleeve 2 and the vertical posts 41 . The plug-in elements can then be inserted into these continuous recesses 5 be inserted. In 2 are two such plug-in elements 5 to the right of the scaffolding node 1 shown. These plug-in elements 5 are U-shaped here and have a circular cross-section. The two legs of the plug-in elements 5 are each inserted into a recess that consists of a fuse opening 411 and a locking opening 21st is formed. Through this insertion of a plug-in element 5 into the connecting sleeve 2 and a vertical handle 41 a form fit is created between these three elements. This is the vertical style 41 in the axial direction to the connecting sleeve 2 secured. The state after the insertion of the plug elements in the connecting sleeve 2 and vertical handle 41 is in 1 shown.

Front left in 2 is the end of a horizontal ledger 42 to see. The one at the end of the horizontal ledger facing right behind 42 attached feature 421 is provided for this purpose in the receiving recess arranged next to it 32 in the connecting disc 3 to be introduced. Through the connecting disc 3 are then through the horizontal ledger 42 introduced horizontal forces introduced into the scaffold node. Of course, the other three receiving recesses 32 the connecting disc 3 Scaffolding elements, such as additional horizontal ledgers 42 be attached.

3 shows a side view of a first embodiment of a scaffolding node 1 . In 3 is the first embodiment of a scaffold knot 1 out 1 shown separately. The connecting sleeve 2 is hollow inside. The connecting sleeve 2 indicates the total length 23 on. The connecting disc 3 is fixed to the connecting sleeve 2 connected and centered on the connecting sleeve 2 arranged. The distance from an end face of the connecting sleeve 2 up to the connecting disc 3 is about half the total length 23 . The connecting sleeve 2 has a sleeve diameter 24 on. Between connecting disc 3 and the front ends of the connecting sleeve 2 are several locking holes 21st appropriate. The shape or locations of the arrangement of the locking openings 21st can also be implemented differently than shown. In the side view there is only an inner protrusion 25th can be seen, which is designed here as a longitudinal bead and is parallel to the central axis of the connecting sleeve 2 over the total length 23 extends towards.

4th shows a plan view of a first embodiment of a scaffold node 1 . In this view is the scaffold node 1 out 3 seen from above. In this view, all four are internal protrusions 25th to recognize. These inner protrusions 25th stand around the projection height 28 over the inner surface 26th the connecting sleeve 2 out. This narrows the inner protrusions 25th the clear width inside the connecting sleeve 2 . The connecting sleeve 2 is made in one piece in this first embodiment. The inner protrusion 25th point over the total length 23 towards a constant projection height 28 on. In this first embodiment of a scaffold knot 1 serve the inner protrusions 25th centering one in the connecting sleeve 2 introduced vertical stem 41 . Those with a constant protrusion height 28 in the longitudinal direction of the connecting sleeve 2 extending inner projections 25th are not suitable in the longitudinal direction of the connecting sleeve 2 running forces from a vertical stick 41 and in the scaffolding node 1 initiate. A scaffolding knot 1 according to this first embodiment, two of two sides are used in the connecting sleeve 2 introduced vertical standards 41 to center one another and to ensure that the end faces of the two vertical standards 41 cover each other and lie on top of each other. The flow of force takes place in the longitudinal direction of the connecting sleeve 2 thus from an inserted vertical handle 41 directly to a second inserted vertical post 41 . A scaffolding knot 1 according to the first embodiment transfers in the into a frame section 100 installed state so no vertical forces between two in the scaffold nodes 1 inserted vertical posts 41 .

5 shows a perspective view of a second embodiment of a scaffolding node 1 . In the 5 illustrated second embodiment of a scaffold node 1 differs from the first embodiment in the type and number of internal projections 25th . In the second embodiment, the inner protrusions are 25th executed as embossing points. The inner protrusions 25th are stamped into the outer surface of the connecting sleeve 2 generated. This embossing becomes part of the wall 27 the connecting sleeve 2 pressed inwards so that there is the inner protrusion 25th arises. The center of an inner projection designed as a stamping point is used as the stamping center 25th Roger that. Usually a conical embossing tool is used for embossing, which is applied from the outside to the connecting sleeve 2 is pressed. The embossing center is created at the point where the tip of the embossing tool meets the connecting sleeve 2 penetrates. Such internal projections designed as embossing points 25th go gently or steadily starting from the inner surface 26th to the protrusion height 28 over. This is especially good in 7th to see. In the in 5 The embodiment shown are the inner projections 25th arranged in four rings. These four rings are parallel to the end faces the connecting sleeve 2 and to the connecting disc 3 aligned. Two of these ranks are near the end faces of the connector sleeve 2 arranged. Two more rings are directly adjacent to the connecting disk 3 arranged. The inner protrusions 25th are along the rings in the circumferential direction of the connecting sleeve 2 evenly arranged. The distance between two adjacent inner protrusions 25th of a ring is constant. The illustrated second embodiment also has locking openings 21st which serve the same purpose as in the first embodiment. The connecting disc 3 is also here roughly in the middle of the total length 23 the connecting sleeve 2 firmly connected to this, for example welded. In 5 is a horizontal ledger 42 with the connecting disc 3 connected. This connection corresponds to the connection with the first embodiment of a scaffolding node 1 . The inner protrusions designed as embossing points 25th the second embodiment serve to knot in the scaffolding 1 introduced vertical standards 41 to center each other. Also the inner protrusions designed as embossing points 25th are not provided in the longitudinal direction of the connecting sleeve 2 forces acting in vertical standards 41 on the connecting sleeve 2 and the scaffold knot 1 transferred to. The connecting sleeve 2 has an insertion bevel at its upper end 29 on. This lead-in bevel 29 is used to introduce a vertical handle 41 into the connecting sleeve 2 to facilitate. Such a lead-in bevel 29 can also be at both ends of the connecting sleeve 29 to be ordered.

6th shows a side view of a second embodiment of a scaffolding node 1 . In 6th is the second embodiment of a scaffold knot 1 out 5 shown from the side. In this view, the four rings of inner projections designed as embossing points 25th clearly visible. The top ring is adjacent to the lead-in bevel 29 arranged. Adjacent to the center of the connecting sleeve 2 arranged connecting disc are two more parallel rings of inner projections 25th arranged. On the downward facing side of the connecting sleeve 2 a fourth ring of inner protrusions is adjacent to the end face 25th arranged. The arrangement shown of four such rings is particularly favorable for guiding vertical posts 41 in the connecting sleeve 2 . The introduced vertical standards 41 are up to the middle of the connecting sleeve 2 introduced. Each vertical stem introduced in this way 41 is then in the introduced state of two rings of inner projections 25th in the connecting sleeve 2 centered. This arrangement has proven to be particularly advantageous for the mutual alignment of two vertical posts 41 in the scaffold node 1 exposed.

7th shows a plan view of a second embodiment of a scaffold node 1 . This view is the second embodiment of a scaffold knot 1 seen from above. Protruding over the inner surface 26th the connecting sleeve 2 is the top ring of internal protrusions 25th to see. In this second embodiment, too, the clear width inside the connecting sleeve 2 through the inner protrusions 25th Are defined. The inner protrusions 25th stand around the height of the projection 28 over the inner surface 26th out. The embossing center of the inner protrusions 25th forms the location of the highest projection height 28 . The course of the surface of the inner protrusions 25th is continuous and runs without sharp edges starting from the surrounding inner lateral surface 26th up to the maximum projection height 28 which is located in the embossing center. Internal projections made in this way 25th are particularly suitable for an inserted vertical handle 41 to guide and center. The face of the inserted vertical post 41 slides starting from the inner lateral surface 26th along the continuous surface of the inner projections 25th and is so when pushed into the connecting sleeve 2 up to the respective projection height 28 guided. This creates an inserted vertical stem 41 together from all inner protrusions 25th in the middle of the connecting sleeve 2 guided and thus centered. In the case in which from each side of the connecting sleeve 2 a vertical style 41 is introduced, meet the two vertical stems 41 with their end faces inside the connecting sleeve 2 directly on top of each other. Vertical in the vertical posts 41 Forces that are running are thus transmitted directly and without a detour via the scaffold node 1 from a vertical stem 41 transferred to the other. Depending on the application, the number of inner projections 25th , the rings that go through the inner protrusions 25th are formed and the protrusion height 28 can also be chosen differently than in the illustration.

8th shows an exploded perspective view of a frame section 100 with a third embodiment of a scaffolding node 1 . The frame section shown 100 includes a scaffold node 1 in a third embodiment. The interfaces of the scaffolding node 1 to other scaffolding elements such as the vertical standards 41 and the horizontal ledger 42 are executed in the same way or analogously to the two embodiments described above. The third embodiment of the scaffold knot 1 differs from the first and the second embodiment in the type and design of the inner projection 25th . This inside protrusion 25th is in the perspective view in 8th not seen, but will be in 9 and 10 shown and described. Also the third embodiment of a scaffolding node 1 has a connecting sleeve 2 with locking openings made therein 21st on. To connect the above and below the scaffold node 1 illustrated vertical stems 41 with the connecting sleeve 2 become the vertical stems 41 into the connecting sleeve 2 pushed in until the locking openings 21st with the fuse openings 411 cursing. In these aligned openings an in 8th not shown plug element 5 be brought in for backup.

9 shows a perspective exploded view of a third embodiment of a scaffolding node 1 . In this representation, the is also in 8th shown scaffold nodes 1 to see according to a third embodiment in an exploded view. In contrast to the first and second embodiment, the connecting sleeve 2 executed here in two parts. A first half of the connecting sleeve 2 is below the connecting disc 3 arranged and is used when assembling the scaffolding node 1 with their front side with one of the receiving surfaces 31 the connecting disc 3 connected. The same connection is made between the part of the connecting sleeve shown above 2 . Its downward facing face is with the upward facing receiving surface 31 the connecting disc 3 connected. In the assembled state, which is shown in 8th can be seen divides the connecting disc 3 thus the connecting sleeve 2 in two halves. The two halves of the connecting sleeve are thereby 2 but firmly with the respective mounting surface 31 connected. Such a connection can be established, for example, by welding the parts together. In the assembled state of the scaffolding node 1 according to the third embodiment, a part of the connecting disk stands 3 inside the connecting sleeve 2 and forms the inner projection there 25th . In the middle of the connecting disc 3 is a circular recess 39 arranged. The inside diameter of this recess 39 is smaller than the inner diameter of the connecting sleeve 2 . Part of the connecting disk is therefore in the assembled state 3 inside the connecting sleeve 2 a. This protruding part that is around the recess 39 extends around, forms the inner protrusion 25th .

10 shows a plan view of a third embodiment of a scaffold node 1 . This view is the third embodiment of a scaffolding knot 1 in the assembled state, as well as in 8th pictured, seen from above. This view clearly shows that part of the connecting disc 3 inside the connecting sleeve 2 protrudes and there the inner protrusion 25th forms. This inside protrusion 25th runs around the inner surface 26th . The inner protrusion 25th can also be divided into itself, so that several inner projections 25th inside the connecting sleeve 2 stand up. By having the inner protrusion 25th through the connecting disc 3 is formed, exists between the inner lateral surface 26th the connecting sleeve 2 and the inner protrusion 25th a sudden transition. The upward-facing surface of the inner projection which is arranged in the drawing plane in the drawing view 25th forms a load-bearing surface here 251 . This load bearing surface 251 is intended to take loads from another scaffolding element, for example a vertical post 41 in the longitudinal direction of the connecting sleeve 2 be introduced. In the third embodiment, in contrast to the first and second embodiment, it is provided that the inner projection 25th with its load-bearing surface 251 Loads from an inserted vertical post 41 in the scaffolding node 1 initiates. In the case in which from both sides into the connecting sleeve 2 a vertical stem 41 is introduced, meet in the third embodiment, the front ends of the two vertical stems 41 not directly on top of each other, but lie on load-bearing surfaces arranged opposite one another 251 at the scaffolding node 1 on. In the built-up state, the power flow in the vertical direction is thus from a vertical stick 41 first in the scaffolding node 1 and from the scaffolding node 1 out into the other vertical post 41 . To have a sufficiently large load-bearing area 251 is the protrusion height 28 here from the inner lateral surface 26th to that in the direction of the interior of the connecting sleeve 2 oriented edge of the inner protrusion 25th is defined, at least as large as the conversion thickness 27a the connecting sleeve 2 . In the embodiment shown, the load-bearing surface extends 251 at right angles to the inner surface 26th . This results in a particularly good transmission of force to the end faces of inserted vertical posts 41 given.

11 shows a perspective view of a fourth embodiment of a scaffold node 1 . In this fourth embodiment of a scaffold knot 1 is not a connecting disc 3 provided in the form as in the first three embodiments. The illustrated fourth embodiment of a scaffold node 1 has a connecting sleeve 2 on, which is identical to the connecting sleeve 2 of the second embodiment, as in 5 to 7th is shown. The fourth embodiment has two cuplock elements for connection with horizontally extending framework elements 301a and 301b on. Between these two cuplock elements 301a and 301b becomes a horizontal strut 4001 connected to the scaffolding node, which points to the front left in the view. The connecting sleeve 2 is provided, as in the embodiments described above, that vertical stems 41 from above and below into the interior of the connecting sleeve 2 be inserted. The two cuplock elements 301a and 301b are collar-shaped. The two cuplock elements 301a and 301b are designed to be rotationally symmetrical around a central axis. This central axis coincides with the central axis or axis of symmetry of the connecting sleeve 2 together. That further down on the connecting sleeve 2 arranged cuplock element 301a has an inner diameter on its downward-facing side that is approximately Outside diameter of the connecting sleeve 2 corresponds. The inside diameter further up on the cuplock element 301a is, however, chosen larger, so that facing upwards a distance or gap between the inner diameter of the cuplock element 301a and the outer diameter of the connecting sleeve 2 consists. An end piece of the horizontal strut can be inserted into this gap 4001 bring in. The cuplock element arranged below 301a is firmly connected to the connection method in its lower area. The cuplock element arranged above 301b corresponds to the cuplock element arranged below 301a . However, the cuplock element arranged above is 301b not tight with the connecting sleeve 2 connected, but mounted axially displaceable to this. For connection with the horizontal strut 4001 first, as in 11 shown, the upper cuplock element 301b relative to the connecting sleeve 2 moved up. This creates a large gap between the two cuplock elements 301a and 301b . In this state shown, the horizontal strut 4001 with a correspondingly shaped end area in the gap between the lower cuplock element 301a and the outer wall of the connecting sleeve 2 brought in. Finally the top cuplock element 301b along the connecting sleeve 2 shifted downwards so that the gap between the inner diameter of the upper cuplock element 301b to the outer diameter of the connecting sleeve 2 also the upper part of the area of the horizontal strut 4001 encompasses. In this state in which the two cuplock elements 301a and 301b are pushed together and the end area of the horizontal strut 4001 include is the horizontal strut 4001 firmly to the scaffold knot 1 connected.

12 shows a perspective view of a fifth embodiment of a scaffold node 1 . In the shown fifth embodiment of a scaffolding node 1 is also not a connecting disk 3 available. The connecting sleeve 2 is identical to the second embodiment as in FIG 5 to 7th shown. In the fifth embodiment, there are four wedge locking pockets for connection to horizontally extending scaffolding elements 302 evenly on the circumference of the outer surface of the connecting sleeve 2 arranged. A horizontal strut is oriented to the front left 4002 to see which one to the connecting sleeve 2 having turned end area. This area is wedge-shaped and fits into the wedge lock pocket 302 . For connecting the horizontal strut 4002 with the scaffold knot 1 becomes the wedge-shaped end area of the horizontal strut 4002 in the wedge lock pocket 302 introduced. The wedge shape of the end area creates the horizontal strut 4002 clearly in the wedge lock pocket 302 positioned and fixed. In the illustrated embodiment there are four wedge locking pockets 302 regularly, that means at a constant distance from one another, around the circumference of the connecting sleeve 2 arranged. The wedge lock bags 302 are made here from sheet metal and attached to the connecting sleeve 2 welded on.

13 shows a perspective view of a sixth embodiment of a scaffold node 1 . There is no connecting disk in this embodiment either 3 according to the first three embodiments. A cup washer is used instead for connection to horizontally running scaffolding elements 303 firmly with the connecting sleeve 2 connected. The connecting sleeve also corresponds in its embodiment 2 the connecting sleeve 2 the second embodiment, like 5 to 7th shown. The sixth embodiment is a cup washer 303 attached centrally to the connecting sleeve. In the plate washer 303 several essentially wedge-shaped recesses are introduced that form the plate washer 303 penetrate. These recesses are used to connect to horizontally extending scaffolding elements, such as a horizontal strut that is oriented to the front left here 4003 . The plate washer 303 has on its outer circumference one in the longitudinal direction of the connecting sleeve 2 protruding edge. The horizontal strut 4003 has an end region which at least partially corresponds to the negative of the shape of the plate washer 303 corresponds. As a result, this end area can form-fit with the cup washer 303 get connected. To secure the horizontal strut 4003 at the scaffolding node 1 then becomes a locking element 4003a in the end of the horizontal strut 4003 brought in. This locking element 4003a then penetrates the end area and one of the recess in the plate washer 303 . This creates the horizontal strut 4003 safely on the plate washer 303 and thus at the scaffolding node 1 fixed.

The ones in the 11 , 12 and 13 The fourth, fifth and sixth embodiment shown is each based on a connecting sleeve 2 according to the second embodiment. Alternatively, however, the fourth, fifth and sixth embodiment can also be configured differently 2 , in particular differently designed inner projections 25th exhibit. The fourth, fifth and sixth embodiment can thus also be used freely with connecting sleeves 2 according to the first or third embodiment of a scaffold node 1 be combined. All combinations between connecting sleeves 2 according to the first three embodiments with the elements cuplock elements 301a and 301b , Wedge lock bag 302 and plate washer 303 Are hereby deemed to be disclosed.

14th shows an exploded perspective view of a frame section 100 with a spindle nut handle 304 . Central element of the frame section shown 100 is a scaffold knot 1 according to the first embodiment as shown in the 2 to 4th is shown and described. For details on the scaffolding node 1 reference is made to the corresponding description of these figures. To the left of the scaffolding knot 1 is a horizontal ledger 42 can be seen below the scaffold knot 1 is a vertical style 41 to see. For connecting the scaffolding node 1 with horizontal ledger 42 and vertical style 41 refer to the description of the figures 1 referenced. The two to the right of the scaffolding knot 1 illustrated plug elements 5 are designed here as plates, which have two pin-like attachments. The pin-like attachments of the plug-in elements are used to connect or secure the elements with one another 5 into the corresponding locking openings 21st and safety openings 411 inserted. For this connection, please refer to the description 1 referenced. Above the scaffolding node 1 is in 14th a spindle nut shaft 304 to see. This spindle nut handle 304 has a stem shaft in its lower area 3041 On. This stem shaft 3041 has an outside diameter that is slightly smaller than the inside diameter of the connecting sleeve 2 of the scaffolding node 1 . The stem shaft 3041 can thus into the connecting sleeve 2 analogous to a vertical stick 41 be inserted. At the top of the spindle nut shaft 304 is a spindle nut 3042 arranged firmly to the stem shaft 3041 connected is. Both the stem shaft 3041 As well as the spindle nut 3042 are hollow on the inside. Above the spindle nut shaft 304 is a scaffolding spindle 800 to see. This scaffolding spindle 800 has an external thread, which is to the internal thread, which in the axial direction inside the spindle nut 3042 is arranged, fits. The scaffolding spindle 800 can thus in the spindle nut handle 304 be screwed in. Based on the exploded view in 14th the elements become scaffold nodes 1 , Spindle nut shaft 304 and scaffolding spindle 800 connected as follows: first the stem shaft 3041 into the connecting sleeve 2 inserted. A fuse with a plug element 5 does not occur with this connection because the spindle nut handle 304 rotatable in the scaffold node 1 should be stored. In this state there is already a vertical post on the side facing downwards 41 in the scaffolding node 1 introduced and with a plug element 5 secured. After inserting the stem shaft 3041 into the connecting sleeve 2 , whose downward-facing front side lies on the upward-facing front side of the vertical post 41 and leans on it. The next step is the scaffolding spindle from above 800 in the spindle nut shaft 304 brought in. The spindle nut handle is used for this 304 rotated, whereby the two threads interlock and the scaffolding spindle 800 in the spindle nut shaft 304 pull. Due to the hollow design of the spindle nut handle 304 and the adjoining vertical post 41 there is enough space inside the connecting sleeve to allow the scaffolding spindle to be retracted downwards 800 record. An assembled section of scaffolding 100 then has the very practical functionality that by turning the spindle nut handle 304 the scaffolding spindle 800 in their position to the connecting sleeve 2 can be varied and adjusted.

This is particularly practical when setting up scaffolding, where different heights of the subsurface on which the scaffolding is erected often have to be compensated. The frame section shown 100 is simple, robust and consists of easy-to-manufacture parts. All installed components are compact and therefore easy to transport. Because the outside diameter of the stem shaft 3041 the outside diameter of a vertical post 41 can be a spindle nut handle 304 of course also from below in a scaffolding node 1 be introduced. An embodiment is also conceivable in which the connecting sleeve is inserted on both sides 2 one spindle nut shaft each 304 is introduced. It is also possible to use the in 14th spindle nut shaft shown 304 to be combined with one of the other described embodiments of a scaffolding node, in particular with the second and third embodiment.

15th shows a sectional side view of a frame section 100 with a spindle nut handle 304 . In this side view the elements are off 14th shown connected to each other. The scaffolding node is again central 1 to see. On the left is the horizontal ledger 42 with the scaffold knot 1 connected. From below into the connecting sleeve 2 a vertical stem is introduced 41 which is roughly up to the middle of the total length 23 the connecting sleeve 2 is introduced. From above is into the connecting sleeve 2 a spindle nut shaft 304 introduced. The stem shaft 3041 is also approximately up to the middle in the connecting sleeve 2 introduced. It can be clearly seen in this sectional view that the outer jacket surface of the handle shaft 3041 and vertical handle 41 on the inner surface 26th the connecting sleeve 2 issue. The end faces of the stem shaft 3041 and vertical handle 41 lie on top of each other. As a result of this resting, forces and loads acting in the vertical direction are displaced via the two end faces of the spindle nut shaft 304 directly to the vertical post 41 and vice versa. The length of the stem shaft 3041 is slightly longer than half the total length 23 the connecting sleeve 2 . Thus the length of the shaft corresponds to 3041 approximately a factor of 0.5 to 0.8 of the total length 23 the connecting sleeve 2 . This results in very compact dimensions of the frame section 100 achieved. In 15th is the scaffolding spindle 800 out 14th not shown. For inserting a scaffolding spindle 800 this is from above into the spindle nut 3042 introduced. This is done on the spindle nut handle 304 rotated, causing the scaffolding spindle 800 in the vertical direction relative to the scaffold node 1 emotional. The scaffolding spindle 800 can with this vertical movement into the hollow interior of the handle shaft 3041 and the vertical stem 41 penetration. When turning the spindle nut handle 304 there is a relative movement from the downward-facing end face of the spindle nut shaft 304 relative to the upwardly facing face of the vertical post 41 . A spindle nut shaft 304 can of course also be used in scaffolding nodes 1 be introduced according to the second or third embodiment. When inserting a spindle nut shaft 304 into a scaffolding node 1 according to the third embodiment, the spindle nut is supported 3042 remote end of the stem shaft 3041 on the load bearing surface 251 of the inner protrusion 25th from.

Claims (26)

Comprising scaffolding nodes (1) for connecting scaffolding elements running in different spatial directions - A connecting sleeve (2) which is provided as a coupling point for two vertical stems (41) or for a vertical stalk (41) with a spindle nut stalk (304), - A connecting disk (3) which has a receiving surface (31) with several receiving recesses (32) and the receiving recesses (32) are provided to be connected to further scaffolding elements, such as horizontal bars (42) or diagonal struts, the connecting disk ( 3) serves as a coupling element for the other scaffolding components, the connecting disc (3) being firmly connected to the connecting sleeve (2) and the receiving surface (31) being oriented essentially at right angles to the overall length (23) of the connecting sleeve (2) and the connecting sleeve ( 2) has at least one inner projection (25) which protrudes radially inward over an inner lateral surface (26) of the connecting sleeve (2). Scaffold knot (1) Claim 1 , characterized in that the at least one inner protrusion (25) is formed by molding the wall (27) of the connecting sleeve (2), the inner protrusion (25) having a constant protrusion height inside the connecting sleeve (2) in the longitudinal direction of the connecting sleeve (2) (28) or the inner projection (25), starting from the inner jacket surface (26) of the connecting sleeve (2), rises and falls steadily up to the projection height (28). Scaffold knot (1) Claim 2 , characterized in that the at least one inner projection (25) is designed as a longitudinal bead which extends over the entire length (23) of the connecting sleeve (2). Scaffold knot (1) Claim 3 , characterized in that two, advantageously three, particularly preferably four, inner projections (25) designed as longitudinal beads are provided, which are distributed uniformly in the circumferential direction on the inner lateral surface (26). Scaffolding node (1) after one of the Claims 2 to 4th , characterized in that the connecting sleeve (2) is made in one piece and the connecting disc (3) is fastened, in particular welded, to the outer surface of the connecting sleeve (2). Scaffold knot (1) Claim 2 , characterized in that the at least one inner projection (25) is designed as an embossing point which has an embossing center and which, starting from the inner circumferential surface (26), increases steadily in all radial directions around the embossing center up to the projection height (28), the Projection height (28) lies in the embossing center. Scaffold knot (1) Claim 6 , characterized in that several inner projections (25) designed as embossing points are provided, which are arranged in at least two rings, the rings being aligned parallel to the receiving surface (31) of the connecting disk and the rings being spaced apart from one another and along the inner projections (25) of the rings are evenly distributed in the circumferential direction on the inner lateral surface (26). Scaffold knot (1) Claim 7 , characterized in that four rings of inner projections (25) designed as embossing points are provided, two of the rings being arranged at one end of the connecting sleeve and two further rings being arranged adjacent to the connecting disc (3). Scaffolding node (1) after one of the Claims 6 to 8th , characterized in that the connecting sleeve (2) is made in one piece and the connecting disc (3) is fastened, in particular welded, to the outer surface of the connecting sleeve (2). Scaffold knot (1) Claim 1 , characterized in that the at least one inner projection (25) protrudes abruptly in relation to the inner lateral surface (26) of the connecting sleeve (2) and has at least one load-bearing surface (251) which is intended to carry loads oriented in the longitudinal direction of the connecting sleeve (2) from a further frame component and which has a protrusion height (28) from its outer edge adjoining the inner lateral surface (26) to its inner edge oriented radially in the direction of the interior of the connecting sleeve (2), which is equal to or greater than the wall thickness (27a) of the connecting sleeve (2). Scaffold knot (1) Claim 10 , characterized in that the at least one inner projection (25) is part of the connecting disc (3), the connecting disc (3) dividing the connecting sleeve (2) into two parts and the end face of a part of the connecting sleeve (2) with a receiving surface (31) of the connecting disc (3) is firmly connected. Scaffold knot (1) Claim 11 , characterized in that the connecting disk (3) has an in particular circular recess (39) and at least a partial area outside of this recess (39) forms the inner projection (25). Scaffold knot (1) Claim 10 , characterized in that the connecting sleeve (2) is made in one piece and the inner projection (25) is formed by an indentation running radially around the circumference of the connecting sleeve and the connecting disk is attached to the outer surface of the connecting sleeve (2). Scaffolding node (1) according to one of the preceding claims, characterized in that the connecting sleeve (2) has an insertion bevel (29) on at least one of its front ends. Scaffolding node (1) according to one of the preceding claims, characterized in that the total length (23) of the connecting sleeve (2) is greater by a factor of 2 to 5 in relation to the sleeve diameter (24). Scaffolding node (1) according to one of the preceding claims, characterized in that the connecting disk (3) is arranged centrally in the longitudinal direction of the connecting sleeve (2). Scaffolding node (1) according to one of the preceding claims, characterized in that the total length (23) of the connecting sleeve (2) on each side of the connecting disc (3) to the end of the connecting sleeve (2) by a factor of 0.9 to 2, 4 is larger than the sleeve diameter (24). Scaffolding node according to one of the preceding claims, characterized in that several receiving recesses (32) in the plan view of the connecting disk (3) and the receiving surface (31) in the circumferential direction regularly, in particular at regular angles with respect to the axis of symmetry of the connecting sleeve (2) to each other, are arranged. Scaffolding knot according to one of the preceding claims, characterized in that the connecting sleeve (2) has at least one locking opening (21) in its end regions at each end, which is directed radially inward through the wall (27) of the connecting sleeve (2). Scaffold knot Claim 19 , characterized in that the locking opening (21) is arranged at a distance from the receiving surface (31) of the connecting disk (3) which corresponds to at least a factor of 0.5 of the sleeve diameter (24), the locking opening (21) in the circumferential direction of the Connecting sleeve is arranged offset to the receiving recess (32) at an angle of 45 °. Scaffold section (100) comprising at least one scaffold node according to one of the preceding claims, further comprising - At least one vertical post (41), the vertical post (41) being inserted into the connecting sleeve (2) of the scaffolding node (1), - At least one horizontal bar (42), which is positively connected to one of the receiving recesses (32) of the connecting disc (3) of the scaffolding node (1), a shaped element (421) arranged at the end of the horizontal bar (42) being inserted into one of the receiving recesses (32 ) is introduced and at least part of the end face of the horizontal bar (42) facing the scaffolding node (1) rests against the connecting sleeve (2). Scaffold section after Claim 21 , characterized in that the vertical style (41) has at least one securing opening (411) at its end facing the scaffolding node (1), the securing opening (411) corresponding in shape and size to the locking opening (21) of the scaffolding node (1) and a Plug-in element (5) is provided, which is inserted into the securing opening (411) and locking opening (21) and secures the vertical post (41) and the scaffold node (1) axially and radially to one another. Scaffold section after Claim 22 , characterized in that there is play between the plug-in element (5) and the locking opening and / or between the plug-in element (5) and the securing opening (411), so that the vertical stem (41) in the connecting sleeve (2) in its longitudinal direction within the Limits of the game is movable. Scaffolding section according to one of the preceding Claims 21 to 23 , characterized in that at least one spindle nut handle (304) is provided which comprises a tubular handle shaft (3041) with a spindle nut (3042) fastened thereon in an axially aligned manner, the handle shaft (3041) being inserted into the connecting sleeve (2). Scaffold section after Claim 24 , characterized in that the spindle nut (3042) the end of the handle shaft (3041) facing away from it is supported on the inner projection (25) of the connecting sleeve (2) or on the end face of the vertical handle (41) inserted into the connecting sleeve (2). Scaffold section after Claim 25 , characterized in that the length of the handle shaft (3041) corresponds to a factor of 0.5 to 0.8 of the total length (23) of the connecting sleeve (2).

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