Beam for scaffold platforms, scaffold platform plane, method for forming a scaffold platform plane, and use of a beam

Abstract

The invention relates to a beam (10) for scaffold platforms (20) for forming a scaffold platform plane (1), comprising at least two profiles (100, 200) which are guided inside one another so as to be longitudinally movable, and at least portions of which comprise recesses (110, 210) which can be made to overlap one another and form openings in the overlap region for receiving scaffold platforms (20), wherein the shape and / or the size of the openings is variable by longitudinally moving the profiles (100, 200) relative to one another. The invention also relates to a scaffold platform plane (1), to a method for forming a scaffold platform plane (1), and to the use of a beam (10).

Description

[0001] The present application claims priority over German patent application No. 10 2022 200 448.5, filed on January 17, 2022.

[0002] The invention relates to a support beam for scaffold decking to form a scaffold decking level. Furthermore, the invention relates to a scaffold decking level and a method for forming a scaffold decking level. A use for a support beam according to the invention is also described. State of the art

[0003] Scaffold decks are generally prefabricated, standardized components available in various lengths and often also in different cross-sections to meet varying load requirements. To construct a scaffold deck level, several decks are installed in parallel between two transverse scaffold ledgers, typically suspended between them. Scaffold decks must therefore be able to bridge the gap between the two ledgers. The greater this gap, the higher the load-bearing capacity requirements for the scaffold decks.

[0004] US patent application US 2010 / 071141 discloses a support consisting of subcomponents that can expand or contract along their overall length.

[0005] An adjustable, edge-limiting barrier is disclosed in international patent application WO 2012 / 021065 A1, which serves to provide protection around holes in scaffold decks. The barrier comprises a multitude of interconnected elements whose length is adjustable in order to adapt the barrier to different sizes of holes in scaffold decks.

[0006] German patent application DE 4 415 843 relates to a telescopic ceiling beam intended for ceiling formwork, which has at least two interlocking profile parts and support claws at both ends of the beam.

[0007] Furthermore, Chinese patent application CN 112 502 426 A discloses a portable work platform for civil engineering, comprising walkways, wherein the walkways arranged side by side are connected to each other to form the work platform.

[0008] Beyond a certain length, scaffold planks become relatively soft. This means they flex more and tend to sway. This is particularly noticeable when there is a high, concentrated load on a single plank and / or when the planks are subjected to a high load for a short period, for example, due to the transport of hand trucks, pallet jacks, and the like. This behavior of scaffold planks can lead to a feeling of instability when walking on them. Furthermore, there is a risk that the load will become too great and the individual plank will give way under the weight.

[0009] The present invention aims to increase the load-bearing capacity of scaffold decking, thereby reducing the aforementioned disadvantages. In particular, it seeks to provide a secure walking experience when traversing a scaffold decking surface.

[0010] To solve the problem, the beam with the features of claim 1, the scaffolding platform with the features of claim 8, and the method with the features of claim 11 are proposed. Advantageous embodiments of the invention can be found in the respective dependent claims. Furthermore, a use for a beam according to the invention, as per claim 14, is specified. Disclosure of the invention

[0011] The proposed beam for scaffold decking to form a scaffold decking level comprises at least two profiles which are longitudinally displaceable into one another and have recesses that can be overlapped at least in some areas, forming openings in the overlap area for receiving scaffold decking, whereby the shape and / or size of the openings is variable by longitudinal displacement of the profiles relative to each other.

[0012] By longitudinally shifting the profiles relative to each other, they can be moved from a mounting position, in which the size of the open cross-section for receiving the scaffold planks is preferably at its maximum, to a final position in which the size of the open cross-section is reduced, thus creating a connection between the scaffold planks via the beam. Due to this connection, a point load on a single scaffold plank is distributed across all other planks connected to it, thereby reducing the load on the individual plank. Consequently, the load-bearing capacity of the scaffold planks is increased.

[0013] The load distribution achieved via the support beam also counteracts strong deflections and vibrations of the scaffold planks, resulting in a safer walking experience. Furthermore, the support beam prevents excessive deflection of individual scaffold planks relative to adjacent planks, thus preventing height differences or gaps from forming between them. The support beam therefore helps to reduce the risk of crushing and, consequently, injury.

[0014] Furthermore, the girder can be used to position and fix the scaffold planks relative to each other. The connection of the scaffold planks via the girder is designed as a force-fit connection, for example, a clamping connection. The clamping connection is created by a longitudinal displacement of the girder profiles relative to each other when the scaffold planks are inserted into the openings. This clamps each individual scaffold plank between two profiles and fixes it in position. To ensure equal spacing between the scaffold planks, the recesses formed in the profiles for creating the openings are preferably arranged at equal intervals. The girder thus also allows the gap widths between the scaffold planks to be predetermined. At the same time, the scaffold planks are secured against slippage by the girder.

[0015] The longitudinally sliding profiles of the beam can, in principle, have any cross-section. This can be either an open or a closed profile. The cross-sectional shape can be, in particular, rectangular, square, or round.

[0016] According to a preferred embodiment of the invention, at least one profile, preferably an outer profile, in which at least one further profile is guided for longitudinal displacement, is a tubular profile. By using a tubular profile as the outer profile, the at least one further inner profile is held securely within the outer profile. The tubular profile can, in particular, be a rectangular tube that forms a kind of rail for the at least one further inner profile. Furthermore, the load-bearing capacity of the beam can be determined by the cross-section of the rectangular tube. The at least one further inner profile can also be a tubular profile, in particular a rectangular tube, which has a smaller cross-section than the outer rectangular tube.

[0017] Alternatively or additionally, it is proposed that at least one profile, preferably an internal profile, be U-shaped in cross-section. This allows for material and therefore weight savings. This applies particularly to the at least one internal profile.

[0018] According to a particularly preferred embodiment of the invention, the beam comprises an outer profile, in particular a rectangular tube, and a single inner profile which is guided longitudinally displaceably within the outer profile. The inner profile may, in particular, have a U-shaped cross-section. The inner profile is preferably oriented such that the opening of the U-shaped cross-section points upwards in the final installed position of the beam.

[0019] According to the invention, the recesses for forming the openings for receiving scaffold planks can be formed in at least two parallel side walls of the profiles and each extend to a top surface of the profiles, so that the recesses are open towards the top surfaces of the profiles. The same applies to the openings formed in the overlap area of ​​the recesses for receiving the scaffold planks. These enable the connection of the beam to already mounted scaffold planks, which are arranged parallel to each other in a plane and form a single scaffold plank plane. For this purpose, the beam is aligned transversely to the scaffold planks and – with the openings facing upwards – placed against the scaffold planks from below, so that the scaffold planks engage in the openings.Subsequently, the profiles of the beam can be moved from the assembly position to the final position by longitudinal displacement relative to each other, in which the scaffold decking is held clamped between the profiles of the beam.

[0020] According to the invention, the recesses for forming the openings for receiving scaffold planks can be partially undercut. This measure allows not only a force-fit connection between the beam and the scaffold planks, but also a positive-locking connection. The positive-locking connection holds the beam to the planks, thus eliminating the need for a further connection between the beam and a scaffold component, such as a horizontal ledger. In this case, the beam can be suspended solely from the scaffold planks.

[0021] The undercut areas of the recesses are preferably adapted to at least one outer contour of a scaffold deck. This means that the undercut areas correspond to the outer contour of a scaffold deck. If the beam is to be combined with different scaffold decks, the undercut area can also be adapted to the different outer contours of several scaffold decks.

[0022] Preferably, the beam is combined with scaffold decks that have a substantially C-shaped cross-section. This means that the scaffold decks have lateral webs, each with an inwardly projecting geometry. The inwardly projecting geometry then forms an outer contour that can engage with an undercut area of ​​a recess in a profile.

[0023] According to the invention, the recesses formed in the profiles for creating openings to receive scaffold planks can each be undercut on only one side. Depending on the profile, this is either the right or left side of the respective recess. That is, a first profile has recesses that – in the side view of the profile – are undercut only on the left side, while another profile has recesses that – also in the side view of the profile – are undercut only on the right side. The other side of the recesses in the profiles is preferably straight.Depending on the position of the profiles relative to each other, openings for receiving scaffold decking are formed in the overlap area of ​​the recesses, which are each bounded on both sides by straight profile edges (assembly position) or by profile edges with undercut areas (end position).

[0024] In the assembly position, the beam is preferably attached from below to the scaffold planks of a scaffold plank level, with the lateral webs of the scaffold planks preferably being inserted into the openings formed in the overlap area of ​​the profile recesses. The openings, which in the assembly position are bounded by straight profile edges, facilitate the insertion of the webs. By longitudinally shifting the profiles relative to each other, the profiles can then be moved from the assembly position to the final position, whereby the openings become smaller and the webs of the scaffold planks engage with the undercut areas of the recesses. The two webs of a scaffold plank engage in the undercut areas of the interlocking profiles, each web with a different profile.For example, if the right web of the scaffold deck engages in an undercut area of ​​a recess formed in the outer profile, the left web of the same scaffold deck engages with an undercut area of ​​a recess formed in the inner profile.

[0025] Advantageously, the nested profiles are connected, or connectable, by a screw. The screw prevents the at least one inner profile from slipping out of the outer profile. The profiles are thus additionally secured against loss by the screw. Furthermore, the screw can be used to secure the position of the profiles relative to each other, which is particularly advantageous when the profiles are in their respective final positions. For this purpose, the screw preferably passes through at least two side walls of the profiles, so that tightening the screw firmly connects the profiles. To allow longitudinal movement of the profiles relative to each other when the screw is inserted but not tightened, at least one opening in a side wall of a profile, designed as an elongated hole, is preferably provided to receive the screw.

[0026] As a further development measure, it is proposed that the screw be received in at least one cam-like recess in at least one side wall of a profile. The cam-like recess allows the longitudinal displacement of the profiles relative to each other to be limited, as two end positions are defined. These can be, in particular, the assembly position and the final position. Furthermore, the cam-like recess enables self-locking of the screw in at least one end position, thus eliminating the need to tighten the screw to fix the relative position of the profiles. For this purpose, the cam-like recess preferably has at least one end-facing depression into which the screw falls automatically when the profiles are in the appropriate relative position. To release the self-locking mechanism, the screw must then be actively lifted out of the depression of the cam-like recess.

[0027] Furthermore, the profiles preferably each have at least one opening on their underside for inserting a tool, with the openings being at least partially overlapping. This ensures that a tool can be inserted through the outer profile into the at least one inner profile via the openings. The inserted tool, in turn, facilitates longitudinal displacement of the profiles relative to each other. The opening in the outer profile is preferably designed as an elongated slot for this purpose. By arranging the openings on the underside of the profiles, longitudinal displacement of the profiles relative to each other can be effected with a suspended beam in place, for example, from a scaffolding level below.

[0028] Since the support beam is preferably used in combination with scaffold decks within a scaffold platform level, a scaffold platform level is further proposed that comprises several scaffold decks arranged in a single plane and running parallel to one another. These decks are connected, preferably positioned and fixed relative to one another, by a support beam according to the invention that runs transversely to the scaffold decks. The support beam distributes the load across all connected scaffold decks, thus increasing the load-bearing capacity of the scaffold platform level. Furthermore, the walking experience on the scaffold platform level is improved because the scaffold decks deflect and / or oscillate less. Additionally, deflection of individual scaffold decks under point loads is prevented, thereby reducing the risk of crushing or injury.

[0029] Since the beam of the proposed scaffold platform is designed according to the invention, it comprises at least two profiles that are longitudinally slidably guided one inside the other and have recesses that can be overlapped at least in certain areas to form openings in which the scaffold platforms are received. The scaffold platforms are oriented perpendicular to the beam.

[0030] The scaffold planks inserted into the openings are preferably connected to the beam by at least a force-fit connection, thus simultaneously positioning and fixing the planks relative to each other. This force-fit connection can be achieved, for example, by a clamping connection. This can be accomplished by sliding the beam profiles relative to each other longitudinally, so that the scaffold planks are clamped between the beam profiles.

[0031] The scaffold planks of the proposed platform are preferably C-shaped in cross-section and / or have lateral webs with an inwardly projecting geometry. In this configuration, the scaffold planks can be connected to the beam not only by friction but also by positive locking. The positive locking is also achieved by the longitudinal displacement of the beam profiles relative to each other. This positive locking allows the beam to be easily attached to already installed scaffold planks, so that it is held in position by the planks. No further connection or fastening of the beam is required.

[0032] To create the proposed scaffold decking level, the scaffold decks are preferably installed first, arranged in a single plane and parallel to each other. The girder can then be installed. The girder profiles assume a mounting position. In this position, the overlap area of ​​the recesses formed in the profiles, and thus the openings for receiving the scaffold decks, is maximized. The girder can then be positioned against the scaffold decks from below, with the openings facing upwards, so that at least the webs of the scaffold decks rest within the openings. Subsequently, the profiles are shifted longitudinally relative to each other, moving from the mounting position to a final position. This creates a positive fit between the scaffold decks and the girder, positioning and fixing the scaffold decks in relation to each other.

[0033] Preferably, the lateral webs of a scaffold platform engage in an undercut area of ​​another profile of the beam. In this way, the scaffold platform can be clamped between the profiles.

[0034] In the proposed scaffold platform level, the two outermost scaffold platforms preferably engage in a recess open at the end face of a profile in the beam. This ensures that both outermost scaffold platforms are also secured in their position via the beam.

[0035] Furthermore, a method for forming a scaffold platform is proposed. In this method, several parallel scaffold platforms arranged in a plane are connected using a support beam according to the invention, preferably positioned and fixed relative to each other. The method thus results in the formation of a scaffold platform according to the invention, thereby achieving the same advantages. In particular, a scaffold platform with increased load-bearing capacity can be formed. For example, if a single scaffold platform is subjected to a point load, the load can be distributed across all connected scaffold platforms. If the scaffold platforms are simultaneously positioned and fixed using the support beam, they can be secured against slippage, ensuring equal gaps between them.

[0036] In this method, preferably after the scaffold decks have been installed, the beam is aligned transversely to the decks and positioned against them from below with the recesses facing upwards, so that the decks engage in the recesses of the beam profiles. The beam profiles are then moved longitudinally relative to each other, thus transitioning from an installation position to a final position in which the decks engage with undercut sections of the profile recesses via their outer contours. This creates a positive fit between the decks and the beam, holding the beam in position even without further fastening.

[0037] The profiles of the beam are preferably fixed in their final position by means of a screw. This fixing prevents unintentional longitudinal displacement of the profiles relative to each other, thus maintaining the positive fit between the scaffold decking and the beam. Preferably, the screw is received in cam-like recesses in the profiles. Furthermore, preferably, the screw automatically falls into a locking position via the cam-like recesses when the profiles shift longitudinally relative to each other. In this case, the fixing of the profiles relative to each other can be achieved by a locking function of the screw, making tightening the screw unnecessary.

[0038] Furthermore, the use of a beam according to the invention for connecting several scaffold planks arranged in one plane and running parallel to each other is proposed, wherein the scaffold planks are positioned and fixed relative to each other by means of the beam. The beam thus not only has a static function, but also facilitates the assembly of the scaffold planks arranged in one plane and running parallel to each other, so that a scaffold plank plane is formed in which the scaffold planks are arranged at equal intervals relative to each other and secured against slippage.

[0039] The invention and its advantages are described in more detail below with reference to the accompanying drawings. These show: Fig. 1 a perspective view of a scaffolding platform according to the invention with a beam according to the invention, seen from below, Fig. 2 an enlarged section of the Fig. 1 in the area of ​​the underpinning beam, Fig. 3a a section through a scaffold decking plane according to the invention with a first scaffold decking, wherein the section line runs parallel to the beam, Fig. 3b a cross-section through the scaffolding decking of the Fig. 3a , Fig. 4a a section through a further scaffold decking level according to the invention with a further scaffold decking, wherein the section line runs parallel to the beam, Fig. 4b a cross-section through the further scaffolding decking of the Fig. 4a , Fig. 5 a perspective view of a beam according to the invention, standing upright, Fig. 6 a perspective view of the underside of the Fig. 5 , lying on its side, Fig. 7 a perspective view of the external profile of the beam of the Fig. 5 , standing, Fig. 8 a perspective view of the external profile of the beam of the Fig. 5 , lying on its side, Fig. 9a perspective view of the inner profile of the beam of the Fig. 5 , standing, Fig. 10 a perspective view of the inner profile of the beam of the Fig. 5 , lying on its side, Fig. 11 a perspective view of an end section of a beam according to the invention in the final position of its profiles and Fig. 12 a perspective view of the final section of the Fig. 11 in the assembly position of its profiles. Detailed description of the drawings

[0040] The one in Figure 1The scaffold platform 1 shown in the invention serves to form a scaffold level within a scaffold. In addition to the scaffold platform 1, this scaffold comprises several horizontal ledgers 30, vertical standards 40, and other scaffold components which will not be discussed in detail. The scaffold platform 1 has several parallel scaffold decks 20 arranged in a single plane, each with a C-shaped cross-section. This cross-sectional shape allows for high load-bearing capacity with minimal material and low weight. However, the load-bearing capacity may be insufficient under a single point load on the scaffold decks 20, causing the scaffold deck 20 to deflect significantly. To prevent this and distribute the load across all scaffold decks 20, they are connected by a beam 10.

[0041] How especially the Figures 5 and 6As can be seen, the beam 10 has two profiles 100 and 200, which are longitudinally slidable inside one another. The outer profile 100 is a tubular profile with a rectangular cross-section (see also Figures 7 and 8 ), in which the further profile 200 is included. The further or inner profile 200 has a U-shaped cross-section (see also Figures 9 and 10 The two profiles 100 and 200 are connected by a screw 300 and simultaneously held securely against loss. To allow longitudinal movement of the two profiles 100 and 200 without loosening the screw 300, the screw 300 is received in cam-like recesses 120 and 220 of the two profiles 100 and 200. These recesses each have a lowered area into which the screw 300 falls when the two profiles 100 and 200 assume a specific position relative to each other. In this way, a self-locking mechanism is achieved, which prevents longitudinal movement of the profiles 100 and 200 relative to each other.

[0042] As the Figures 7 and 8 The outer profile 100 has two side walls 101, 102, a top surface 103, and a bottom surface 104. Recesses 110 are formed in the side walls 101, 102 at equal intervals, each extending to or opening towards the top surface 103. The recesses 110 serve to receive the scaffold planks 20. On one side of each recess, specifically on the right side in the side view, the recesses 110 have an undercut area 111 that is adapted to an outer contour 21 of the scaffold planks 20. On the opposite side, the recesses 110 are bounded by a straight profile edge.

[0043] How especially the Figures 9 and 10As can be seen, the inner profile 200 has two side walls 101, 102, a top surface 203, and a bottom surface 204. Since the profile 200 has a U-shaped cross-section, the top surface 203 is completely open. Recesses 210 are formed at equal intervals in the side walls 201, 202, each extending to or opening towards the top surface 203. The recesses 210 can be at least partially overlapped with the recesses 110 of the outer profile 100 when the profile 200 is inserted into the profile 100 to form the beam 10 (see Figures 5 and 6 The recesses 210 of the inner profile 200 are also partially undercut on one side, so that undercut areas 211 are formed. These are located on the left side of the recesses 210 in the side view of the profile 200 (see Figures 9 and 10). The opposite side of each of the recesses 210 is bounded by a straight profile edge.

[0044] Because the profiles 100 and 200 of the beam are guided longitudinally within one another, they can assume different positions, including an end position exemplified in the Figure 11 is shown and enables a positive fit between a scaffold platform 20 and the beam 10, as well as an assembly position, which is exemplified in the Figure 12This is shown and allows the insertion of a scaffold deck 20 into the recesses 110, 210 of the profiles 100, 200. In the assembly position, the recesses 110, 210 of the two profiles 100, 200 have a maximum common overlap area, so that the beam 10 can be attached from below to a scaffold deck level 1 and connected to the scaffold decks 20 of the scaffold deck level 1. By longitudinally displacing the profiles 100, 200 relative to each other, a positive fit can then be created between the scaffold decks 20 and the beam 10, whereby the outer contours 21 of the scaffold decks 20 engage in the undercut areas 111, 211 of the recesses 110, 210 of the profiles 100, 200 (see Figure 2 ).

[0045] In the figures, the undercut areas 111, 211 are each stepped to adapt to different outer contours 21, 21'. This allows different types of scaffold decking 21, 21' to be positively connected to the beam 10.

[0046] In the Figure 3a Examples include scaffold decking 20 of a first type (see Fig. 3b ) connected to the beam 10. These have outer contours 21, each of which engages with a first stage of the undercut areas 111, 211 of the profiles 100, 200.

[0047] In the Figure 4a Examples include 20' scaffold decking of a second type (see Figure 4b ) shown, which have outer contours 21', each of which engage in a second stage of the undercut areas 111, 211.

[0048] To secure the position of external scaffold decks 20 of a scaffold deck level 1, the profiles 100, 200 have end-face recesses 140, 240 in the side walls 101, 102, 201, 202 at opposite ends (see Figures 5 to 10 The beam 10 is therefore held in place solely by the scaffold decking 20 after its installation (see Figure 1 ).

[0049] Profiles 100 and 200 each have further openings 130 and 230 on their undersides 104 and 204 (see Figure 6 , 8 and10). These allow the insertion of a tool (not shown) to effect a longitudinal displacement of profiles 100 and 200 relative to each other. The opening 130 in the outer profile 100 is designed as an elongated hole for this purpose (see Figure 6 and 8 ). Reference symbol list

[0050] 1. Scaffold platform level 10 Support beam 20 Scaffold decking 21 Outer contour 30 horizontal bars 40 Vertical stem 100 Profile 101 Side wall 102 Side wall 103 Top 104 Bottom 110Recess 111Undercut executed area 120 stage-like recess 130 Opening 140 recess 200 Profile 201 Side wall 202 Side wall 203 Top 204 Bottom 210Recess 211Undercut executed area 220Scene-like recess 230 Opening 240 recess 300 screw

Claims

1. A beam (10) for scaffold platforms (20) for forming a scaffold platform plane (1), comprising at least two profiles (100, 200) which are guided into one other in a longitudinally displaceable manner and have recesses (110, 210) which can be brought into overlap at least in certain regions and which form openings in the overlap region for receiving scaffold platforms (20), wherein the shape and / or the size of the openings is variable by longitudinal displacement of the profiles (100, 200) relative to one another, characterized in that • the recesses (110, 210) for forming the openings for receiving scaffold platforms (20) are formed in at least two parallel side walls (101, 102, 201, 202) of the profiles (100, 200) and extend in each case up to an upper side (103, 203) of the profiles (100, 200), so that the recesses (110, 210) are open towards the upper sides (103, 203); and / or • the recesses (110, 210) for forming the openings for receiving scaffold platforms (20) are undercut in certain regions; and / or • the recesses (110, 210) formed in the profiles (100, 200) for forming openings for receiving scaffold platforms (20) are in each case undercut on one side only and, depending on the profile (100, 200), it is either the right or left side of the respective recess (110, 210).

2. The beam (10) according to Claim 1, characterized in that at least one profile (100), preferably an outer profile (100), in which at least one further profile (200) is guided in a longitudinally displaceable manner, is a tubular profile, in particular a rectangular tube.

3. The beam (10) according to Claim 1 or 2, characterized in that at least one profile (200), preferably an inner profile (200), is U-shaped in cross-section.

4. The beam (10) according to any one of the preceding claims, characterized in that the at least two profiles (100, 200) are connected via a screw (300), wherein the screw (300) is received in curved groove-like recesses (120, 220) of the two profiles (100, 200), wherein the curved groove-like recesses (120, 220) each have a recessed region into which the screw (300) falls when the two profiles (100, 200) assume a certain position relative to one another.

5. The beam (10) according to any one of the preceding claims, characterized in that the undercut regions (111, 211) are adapted to at least one outer contour (21) of a scaffold platform (20).

6. The beam (10) according to any one of the preceding Claims 1 to 3 or 5, if not dependent on Claim 4, characterized in that the profiles (100, 200) guided into one other are connected or connectable by means of a screw (300), wherein preferably the screw (300) is received in at least one elongated hole and / or in at least one curved groove-like recess (120, 220) in at least one side wall (101, 102, 201, 202) of a profile (100, 200).

7. The beam (10) according to any one of the preceding claims, characterized in that the profiles (100, 200) each have at least one opening (130, 230) for inserting a tool in the region of an underside (104, 204), wherein the openings (130, 230) can be brought into overlap at least in certain regions.

8. A scaffold platform plane (1), comprising multiple scaffold platforms (20) arranged in one plane and running parallel to one another, which are connected, preferably positioned and fixed relative to one another, via a beam (10) according to any one of the preceding claims, which runs transversely to the scaffold platforms (20).

9. The scaffold platform plane (1) according to Claim 8, characterized in that the scaffold platforms (20) are substantially C-shaped in cross-section and / or have lateral webs with an inwardly projecting geometry, wherein preferably the webs of one scaffold platform (20) each engage in an undercut region (111, 211) of another profile (100, 200) of the beam (10).

10. The scaffold platform plane (1) according to Claim 8 or 9, characterized in that the two outer scaffold platforms (20) each engage in a recess (140, 240) of a profile (100, 200) of the beam (10), which recess is open at the front side.

11. A method for forming a scaffold platform plane (1), in which multiple scaffold platforms (20) arranged in one plane and running parallel to one another are connected, preferably positioned and fixed relative to one another, using a beam (10) according to any one of Claims 1 to 7.

12. The method according to Claim 11, characterized in that, after the scaffold platforms (20) have been assembled, the beam (10) is aligned transversely to the scaffold platforms (20) and is placed on the scaffold platforms (20) from below with the recesses (110, 210) facing upwards, so that the scaffold platforms (20) engage in the recesses (110, 120), subsequently the profiles (100, 200) of the beam (10) are displaced longitudinally relative to one another, so that they are transferred from an assembly position to an end position in which the scaffold platforms (20) engage in undercut regions (111, 211) of the recesses (110, 210) of the profiles (100, 200) via outer contours (21).

13. The method according to Claim 12, characterized in that the profiles (100, 200) are fixed in their end position by means of a screw (300), wherein preferably the screw (300) falls automatically into a locking position via curved groove-like recesses (120, 220) of the profiles (100, 200) when the profiles (100, 200) are longitudinally displaced relative to one another.

14. Use of a beam (10) according to any one of Claims 1 to 7 for connecting multiple scaffold platforms (20) arranged in one plane and running parallel to one another, wherein the scaffold platforms (20) are positioned and fixed relative to one another by means of the beam (10).

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