Beam for scaffolding decking, scaffolding decking level

Abstract

Beam (10) for scaffolding decks (20) for forming a scaffolding deck level (1), comprising at least two profiles (100, 200) which are guided longitudinally displaceably into one another and have recesses (110, 210) which can be brought into overlap at least in some areas and which form openings in the overlap area for receiving scaffolding decks (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 at least two profiles (100, 200) are connected via a fastening means (300), wherein the fastening means (300) is received in slot-like recesses (120, 220) of the at least two profiles (100, 200), wherein the slot-like recesses (120, 220) each have a region into which the fastening means engages and / or falls when the two profiles (100, 200) occupy a certain position relative to each other.

Description

Reference to Related ApplicationsThe present application claims priority to German Patent Application No. 10 2022 200 448.5 filed on January 17, 2022, which is incorporated herein by reference in its entirety.The invention relates to an underpass for scaffolding coverings for forming a scaffolding covering plane. Furthermore, the invention relates to a scaffold platform plane.Prior ArtScaffolding coverings are generally prefabricated standardized components which are stored in different lengths and frequently also-for satisfying different load requirements-in different cross-sections. When forming a scaffolding deck plane, a plurality of scaffolding deckings are inserted, in particular suspended, in a parallel arrangement between two scaffolding bars running transversely. Scaffolding coverings must therefore be able to bridge the distance between the two scaffolding bars. The greater this distance, the higher the requirements with regard to the load-bearing capacity of the scaffolding coverings.Beyond a certain length, scaffolding coverings become relatively soft. That is, they flex more and tend to swing. This can be seen in particular in the case of a high point load on only one scaffolding deck and / or in the case of a brief high load on the scaffolding deck, for example on account of the transport of bag trucks, lifting trucks and the like. This behavior of scaffolding coverings can lead to a feeling of uncertainty when walking on. In addition, there is the risk that the load is too great and the respective scaffolding deck yields under the load.The present invention is concerned with the object of increasing the load-bearing capacity of scaffolding coverings, so that the above-mentioned disadvantages are less brought about. In particular, a safe walking feel is to be provided when walking on a scaffold platform level.To achieve the object, the underlay with the features of independent claims 1 and 3 and the scaffold platform plane with the features of claim 10 are proposed. Advantageous further developments of the invention can be found in the respective dependent claims.Disclosure of the InventionThe undertrain proposed for scaffolding coverings for forming a scaffolding covering plane comprises at least two profiles which are guided one inside the other in a longitudinally displaceable manner and have recesses which can be brought into superposition at least in regions and which form openings in the superposition region for receiving scaffolding coverings, wherein the shape and / or the size of the openings is variable by longitudinal displacement of the profiles relative to one another.By displacing the profiles longitudinally relative to one another, they can be transferred from an assembly position, in which the size of the exposed cross section of the openings for receiving the scaffolding coverings is preferably at a maximum, into an end position, in which the size of the exposed cross section of the openings is reduced, so that a connection of the scaffolding coverings to one another is achieved via the underpass. Due to the connection of the scaffolding coverings to one another produced via the underlay, a distribution of the load to all other scaffolding coverings connected to the scaffolding covering is achieved in the case of a point load of an individual scaffolding covering, so that the individual scaffolding covering is loaded to a lesser extent. Accordingly, the load-bearing capacity of the scaffolding coverings increases.The load distribution effected via the underpass also counteracts severe deflections and oscillations of the scaffolding coverings, so that a more secure feeling of walking is obtained when walking on. Furthermore, the underdraft prevents a strong bending of individual scaffolding coverings relative to adjacent scaffolding coverings, so that no height differences or gaps form between them. The underdraft thus helps to reduce the risk of squeezing and thus injury.In addition, the underlay can be used for positioning and fixing the scaffolding coverings relative to one another. The connection of the scaffolding coverings via the undertrain is designed for this purpose as a force-fit connection, for example as a clamping connection. The clamping connection is produced by a longitudinal displacement of the profiles of the underlay relative to one another when the scaffolding coverings are accommodated in the openings. The individual scaffolding coverings are thereby clamped between two profiles and fixed in position. In order to ensure equal distances between the scaffolding coverings, the recesses formed in the profiles for forming the openings are preferably each arranged at equal distances from one another. The underpass thus also allows the gap widths between the scaffolding coverings to be predetermined. At the same time, the scaffolding coverings are secured against slipping via the underpass.The profiles of the base which are guided one inside the other in a longitudinally displaceable manner can in principle have any desired cross section. This can be both an open and a closed profile cross section. The cross-sectional shape can be in particular rectangular, square or round.According to a preferred embodiment of the invention, at least one profile, preferably an external profile in which at least one further profile is guided in a longitudinally displaceable manner, is a tubular profile. By using a tubular profile as the outer profile, the at least one further inner profile is held captive in the outer profile. The tube profile can be, in particular, a rectangular tube which forms a type of rail for the at least one further inner profile. In addition, the load-bearing capacity of the under-train can be predefined via the cross section of the rectangular tube. The at least one further inner profile can likewise be a raw profile, in particular a rectangular tube, which has a smaller cross section compared to the outer rectangular tube.Alternatively or additionally, it is proposed that at least one profile, preferably an inner profile, is U-shaped in cross section. In this way, material and thus weight can be saved. This applies in particular with respect to the at least one inner profile.According to a particularly preferred embodiment of the invention, the undertrain comprises an outer profile, in particular a rectangular tube, and a single inner profile which is guided in a longitudinally displaceable manner in the outer profile. The inner profile can have in particular a U-shaped cross section. The inner profile is preferably oriented such that the opening of the U-shaped cross section points upward in the final installation position of the underlay.The recesses for forming the openings for receiving scaffolding coverings are preferably formed in at least two side walls of the profiles running parallel and each extend as far as an upper side of the profiles, so that the recesses are open towards the upper sides of the profiles. The same applies to the openings formed in the overlapping region of the recesses for receiving the scaffolding coverings. These make it possible to connect the underlay to already mounted scaffolding coverings, which are arranged in a plane parallel to one another and form a scaffolding covering plane. For this purpose, the underlay is oriented transversely to the scaffolding coverings and--with the openings facing upwards--is placed from below against the scaffolding coverings, so that the scaffolding coverings engage in the openings. Subsequently, the profiles of the underpass can be brought by longitudinal displacement relative to one another from the mounting position into the end position in which the scaffolding coverings are held in a clamping manner between the profiles of the underpass.According to the invention, the recesses for forming the openings for receiving scaffolding coverings can be formed undercut in some areas. By this measure, not only can a force-fit connection be produced between the undercover and the scaffolding coverings, but also a force-fit connection. The undertrain is held on the linings via the form-fit connection, so that a further connection of the undertrain to a scaffolding component, for example a horizontal latch, is unnecessary. In this case, the underlay can be suspended exclusively on the scaffolding coverings.The undercut regions of the recesses are preferably adapted to at least one outer contour of a scaffold platform. This means that the undercut regions are formed corresponding to the outer contour of a scaffold platform. If the underpass is to be combined with different scaffolding coverings, the undercut region can also be adapted to different outer contours of a plurality of scaffolding coverings.Preferably, the undertrain is combined with scaffolding coverings having a substantially C-shaped cross-section. This means that the scaffolding coverings have lateral webs each with an inwardly projecting geometry. The inwardly projecting geometry then forms an outer contour which can be brought into engagement with an undercut region of a cutout of a profile.According to the invention, the recesses formed in the profiles for forming the openings for receiving scaffolding coverings can each be formed so as to be undercut only on one side. Depending on the profile, this is either the right or left side of the respective recess. This means that a first profile has recesses which-in the side view of the profile-are embodied as undercut only on the left-hand side, while another profile has recesses which-likewise in the side view of the profile-are embodied as undercut only on the right-hand side. The respective other side of the recesses of the profiles is preferably straight. Depending on the position of the profiles relative to one another, openings are then formed in the overlapping region of the recesses for receiving scaffolding coverings, which openings are each bounded on both sides by straight profile edges (mounting position) or by profile edges with undercut regions (end position).In the assembly position, the underlay is preferably placed from below on the scaffolding coverings of a scaffolding covering plane, wherein the lateral webs of the scaffolding coverings are preferably inserted into the openings which are formed in the covering region of the recesses of the profiles. The openings delimited by straight profile edges in the mounting position facilitate the insertion of the webs. By a longitudinal displacement of the profiles relative to each other, the profiles can then be transferred from the mounting position into the end position, wherein the openings become smaller and the webs of the scaffolding coverings are brought into engagement with the undercut areas of the recesses. The two webs of a scaffold platform engage in the undercut regions of the profiles guided one inside the other, each web having a different profile. If, for example, the right-hand web of the scaffold platform engages in an undercut-shaped region of a recess formed in the outer profile, the left-hand web of the same scaffold platform is brought into engagement with an undercut-shaped region of a recess formed in the inner profile.Advantageously, the profiles guided into one another are connected or connectable via a screw. The screw prevents the at least one inner profile from sliding out of the outer profile. The profiles are thus additionally held captive by means of screws. Furthermore, the position of the profiles with respect to one another can be secured with the aid of the screw, which is advantageous in particular when the profiles are in their respective end position. For this purpose, the screw is preferably passed through at least two side walls of the profiles, so that the profiles are firmly connected to one another by tightening the screw. In order to allow a longitudinal displacement of the profiles relative to one another when the screw is inserted but not tightened, at least one opening in a side wall of a profile which receives the screw is preferably designed as an elongated hole.As a further developing measure, it is proposed that the screw is accommodated in at least one slot-like recess in at least one side wall of a profile. The longitudinal displacement of the profiles relative to one another can be limited by means of the slotted-link-like recess, since two end positions are predetermined. This can be in particular the mounting position and the end position. Furthermore, a self-locking of the screw in at least one end position can be achieved via the slotted-link-like recess, so that a tightening of the screw for fixing the position of the profiles relative to one another is unnecessary. For this purpose, the slotted-link-like recess preferably has at least one end-side depression into which the screw falls by itself when the profiles are positioned accordingly with respect to one another. To release the self-locking, the screw must then be actively lifted out of the recess of the slotted-link-like recess.Furthermore, the profiles preferably each have at least one opening in the region of a bottom side for the insertion of a tool, wherein the openings can be brought at least in regions into overlap. This ensures that a tool can be introduced through the outer profile into the at least one inner profile via the openings. The inserted tool in turn facilitates a longitudinal displacement of the profiles relative to one another. For this purpose, the opening in the outer profile is preferably designed as an elongated hole. By arranging the openings on the underside of the profiles, the longitudinal displacement of the profiles with respect to one another can be effected when the underlay is suspended, for example from a framework plane lying beneath.Since the underlay is preferably used in a scaffolding deck plane in combination with scaffolding deckings, a scaffolding deck plane is also proposed which comprises a plurality of scaffolding deckings arranged in a plane and running parallel to one another, which are connected, preferably positioned and fixed relative to one another, via an underlay according to the invention running transversely to the scaffolding deckings. A load distribution is achieved via the underpass to all connected scaffolding coverings, so that the scaffolding covering plane has an increased load-bearing capacity. In addition, the walking feel when walking on the scaffolding deck plane is improved, since the scaffolding deck can flex less and / or swing less. Furthermore, in the case of point-type individual loads, bending of individual scaffolding coverings is prevented, so that the risk of squeezing or injury is reduced.Since the underpass of the proposed scaffolding deck plane is formed according to the invention, it comprises at least two profiles which are guided longitudinally displaceably one inside the other and have recesses which can be brought at least in regions into superposition for forming openings in which the scaffolding deck are accommodated. The scaffolding coverings are oriented perpendicular to the underdraft.The scaffolding coverings accommodated in the openings are preferably connected to the undertrain at least in a force-fit manner, so that at the same time a positioning and fixing of the scaffolding coverings relative to one another is achieved. The force-fit connection can be produced, for example, by a clamping connection. This can be achieved by displacing the profiles of the liner in the longitudinal direction with respect to one another, so that the scaffolding coverings are clamped between the profiles of the liner.The scaffolding coverings of the proposed scaffolding covering plane are preferably substantially C-shaped in cross section and / or have lateral webs with an inwardly projecting geometry. In this embodiment, the scaffolding coverings can be connected not only in a force-fitting manner but also in a form-fitting manner to the undertrain. The positive fit is likewise produced by the longitudinal displacement of the profiles of the underlay relative to one another. As a result of the positive fit, the underpass can be easily suspended from already mounted scaffolding coverings, so that it is held in position via the scaffolding coverings. No further connection / fastening of the undertrain is necessary.To form the proposed scaffolding deck plane, the scaffolding deckings are preferably first mounted so that they are arranged in one plane and run parallel to one another. The underlay can then be mounted. The profiles of the underlay thereby assume an assembly position. In this, the overlap area of the recesses formed in the profiles and thus of the openings for receiving the scaffolding coverings is maximum. The underpass can then be placed with the openings upwards from below onto the scaffolding coverings, so that at least the webs of the scaffolding coverings come to lie in the openings. If the profiles are then displaced relative to one another in the longitudinal direction, so that they are transferred from the mounting position into an end position, a form fit can be produced between the scaffolding coverings and the underlay, by means of which the scaffolding coverings are positioned and fixed relative to one another.Preferably, the lateral webs of a scaffold platform each engage in an undercut-shaped region of another profile of the underpass. In this way, the scaffold platform can be clamped between the profiles.In the case of the proposed scaffolding deck plane, the two externally located scaffolding decks preferably each engage in a recess, open at the end face, of a profile of the underlay. This ensures that the two outer scaffolding coverings are also secured in position via the under-cover.Furthermore, a method for forming a scaffold platform plane is described. In the method, a plurality of scaffolding coverings arranged in a plane and running parallel to one another are connected, preferably positioned and fixed relative to one another, using a support according to the invention. The method thus leads to the formation of a scaffold platform plane according to the invention, so that the same advantages are achieved with the aid of the method. In particular, a scaffold platform plane can be formed which has an increased load-bearing capacity. For example, in the case of a point load of an individual scaffolding deck, the load can be distributed to all connected scaffolding deckings. If the scaffolding coverings are positioned and fixed at the same time with the aid of the underlay, the scaffolding coverings can be secured against slipping, which ensures equally large gaps between the scaffolding coverings.In the method, the undertrain is preferably aligned transversely to the undertrains after the mounting of the scaffolding coverings and placed with the recesses upwardly from below on the scaffolding coverings, so that the scaffolding coverings engage in the recesses of the profiles of the undertrain. Subsequently, the profiles of the underlay are displaced longitudinally relative to one another, so that they are transferred from an assembly position into an end position in which the scaffolding coverings engage via outer contours in undercut regions of the recesses of the profiles. In this way, a form fit is produced between the scaffolding coverings and the underpass, which holds the underpass in its position even without further fastening.The profiles of the underlay are preferably fixed in their end position by means of a screw. The fixing prevents an unintentional longitudinal displacement of the profiles relative to one another, so that the form fit between the scaffolding coverings and the underpass is maintained. Preferably, the screw is accommodated in slotted-link-like recesses of the profiles. Furthermore, preferably, the screw automatically falls into a locking position via the slotted-link-like recesses upon a longitudinal displacement of the profiles relative to one another. The fixing of the profiles to one another can be effected in this case by a locking function of the screw, so that tightening of the screw is unnecessary.In addition, the use of a liner according to the invention for connecting a plurality of scaffolding coverings arranged in a plane and running parallel to one another is described, wherein the scaffolding coverings are positioned and fixed relative to one another by means of the liner. The underpass thus not only has a static function, but also facilitates the assembly of the scaffolding coverings arranged in a plane and running parallel to one another, so that a scaffolding covering plane is formed in which the scaffolding coverings are arranged at equal distances from one another and are secured against slipping.The invention and its advantages are described in more detail below with reference to the attached drawings. These show: FIG. 1 shows a perspective illustration of a scaffold platform plane according to the invention with a undertrain according to the invention, viewed from below, FIG. 2 shows an enlarged detail of FIG. 1 in the region of the undertrain, FIG. 3 ashows a section through a scaffold platform plane according to the invention with a first scaffold platform, wherein the section line runs parallel to the underlay, FIG. 3 bshows a cross section through the scaffold platform of FIG. 3 a, FIG. 4 ashows a section through a further scaffold platform plane according to the invention with a further scaffold platform, wherein the section line runs parallel to the underdraft, FIG. 4 bshows a cross section through the further scaffold covering of FIG. 4 a, FIG. 5 shows a perspective illustration of a support according to the invention, in a vertical position, FIG. 6 is a perspective view of the support of FIG. 5 lying on the side, FIG. 7 shows a perspective illustration of the outer profile of the undertrain of FIG. 5, in a vertical position, FIG. 8 is a perspective view of the outer profile of the support of FIG. 5, lying on the side, FIG. 9 shows a perspective illustration of the inner profile of the undertrain of FIG. 5, in a vertical position, FIG. 10 is a perspective view of the inner profile of the undertrain of FIG. 5, lying on the side, FIG. 11 shows a perspective illustration of an end section of a casing according to the invention in the end position of its profiles, and FIG. 12 is a perspective view of the end portion of FIG. 11 in the mounting position of its profiles.DETAILED DESCRIPTION OF THE DRAWINGSThe scaffolding plane 1 according to the invention illustrated in FIG. 1 serves to form a scaffolding plane within a scaffolding. In addition to the scaffolding deck plane 1, this comprises a plurality of horizontal bars 30, vertical posts 40 and further scaffolding components which will not be discussed in more detail. The scaffolding deck plane 1 has a plurality of scaffolding deckings 20 which are arranged in a plane and run parallel and which are each C-shaped in cross section. The cross-sectional shape enables a high load-bearing capacity to be achieved with little material and low weight. However, in the case of a point-type individual load on the scaffolding coverings 20, the load-bearing capacity may be insufficient, so that the scaffolding covering 20 bends strongly. In order to prevent this and to distribute the load to all the scaffolding coverings 20, these are connected via an underdraft 10.As can be seen in particular from FIGS. 5 and 6, the undertrain 10 has two profiles 100, 200 which are guided one inside the other in a longitudinally displaceable manner. The outer profile 100 is a tubular profile with a rectangular cross section (see also FIGS. 7 and 8 ), in which the further profile 200 is accommodated. The further or inner profile 200 has a U-shaped cross section (see also FIGS. 9 and 10 ). The two profiles 100, 200 are connected by a screw 300 and at the same time held captive. In order to permit a longitudinal displacement of the two profiles 100, 200 without loosening the screw 300, the screw 300 is accommodated in slotted-link-like recesses 120, 220 of the two profiles 100, 200. These have in each case a lowered region into which the screw 300 falls when the two profiles 100, 200 assume a specific position with respect to one another. In this way, a self-locking is achieved which prevents a longitudinal displacement of the profiles 100, 200 relative to one anotherAs FIGS. 7 and 8 show, the outer profile 100 has two side walls 101, 102, an upper side 103 and a lower side 104. Recesses 110 are formed in the side walls 101, 102 at equal distances from one another, which in each case extend as far as the top side 103 or are open toward the top side 103. The recesses 110 serve for receiving the scaffolding coverings 20, On one side in each case, namely on the right side in the side view in each case, the recesses 110 have an undercut region 111 which is adapted to an outer contour 21 of the scaffolding coverings 20. On the other side, the recesses 110 are each bounded by a straight profile edge.As can be seen in particular from FIGS. 9 and 10, the inner profile 200 has two side walls 101, 102, an upper side 203 and a lower side 204. Since the profile 200 has a U-shaped cross section, the upper side 203 is designed to be continuously open. Recesses 210 are formed in the side walls 201, 202 at equal distances from one another, which recesses each extend as far as the top side 203 or are open toward the top side 203. The recesses 210 can be brought at least in regions into overlapping relationship with the recesses 110 of the outer profile 100 when the profile 200 is inserted into the profile 100 in order to form the underlay 10 (see FIGS. 5 and 6 ). The recesses 210 of the inner profile 200 are likewise embodied in regions as undercut on one side, so that undercut regions 211 are embodied. In the side view of the profile 200, these are each located on the left side of the recesses 210 (see FIGS. 9 and 10 ). The respective other side of the recesses 210 is bounded by a straight profile edge.Because the profiles 100, 200 of the underlay are guided longitudinally displaceably in one another, they can assume different positions, namely an end position which is illustrated by way of example in FIG. 11 and enables a form fit between a scaffold platform 20 and the underlay 10, and an assembly position which is illustrated by way of example in FIG. 12 and enables the insertion of a scaffold platform 20 into the recesses 110, 210 of the profiles 100, 200. This is because, in the assembly position, the recesses 110, 210 of the two profiles 100, 200 have a maximum common covering region, such that the undertrain 10 can be placed from below on a scaffolding deck plane 1 and connected to the scaffolding deck 20 of the scaffolding deck plane 1. By a longitudinal displacement of the profiles 100, 200 relative to one another, a form fit can then be produced between the scaffolding coverings 20 and the underlay 10, wherein outer contours 21 of the scaffolding coverings 20 engage in the undercut regions 111, 211 of the recesses 110, 210 of the profiles 100, 200 (see FIG. 2 ).In the figures, the undercut regions 111, 211 are each stepped to adapt to different outer contours 21, 21'. As a result, different types of scaffolding coverings 21, 21' can be connected to the undertrain 10 in a positive-locking manner.In FIG. 3 a, scaffolding coverings 20 of a first type (see FIG. 3 b) are connected by way of example to the undertrain 10. These have outer contours 21 which are each in engagement with a first step of the undercut regions 111, 211 of the profiles 100, 200.FIG. 4a shows, by way of example, scaffolding coverings 20' of a second type (see FIG. 4b) which have outer contours 21' which each engage in a second step of the undercut regions 111, 211.In order to secure the position of outer scaffolding coverings 20 of a scaffolding covering plane 1, the profiles 100, 200 have-in each case at another end-end recesses 140, 240 in the side walls 101, 102, 201, 202 (see FIGS. 5 to 10 ). The undertrain 10 is accordingly held solely by the scaffolding coverings 20 after its mounting (see FIG. 1 ).Further openings 130, 230 have the profiles 100, 200 in each case on their underside 104, 204 (see FIGS. 6, 8 and 10 ). These make it possible to insert a tool (not shown) in order to cause a longitudinal displacement of the profiles 100, 200 relative to one another with the aid of the tool. The opening 130 in the outer profile 100 is designed as an elongated hole for this purpose (see FIGS. 6 and 8 ).Further advantageous embodiments and associated exemplary methods and uses are described in the following examples:A1. Undertravel (10) for scaffolding coverings (20) for forming a scaffolding covering plane (1), comprising at least two profiles (100, 200) which are guided one inside the other in a longitudinally displaceable manner and have recesses (110, 210) which can be brought into superposition at least in regions and which form openings in the superposition region for receiving scaffolding coverings (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.A2. Undertrain (10) according to example A1, wherein at least one profile (100), preferably an external 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.A3. Undertrain (10) according to example A1 or A2, wherein at least one profile (200), preferably an inner profile (200), is U-shaped in cross section.A4. Undertravel (10) according to one of the preceding examples, wherein the recesses (110, 210) for forming the openings for receiving scaffolding coverings (20) are formed in at least two parallel side walls (101, 102, 201, 202) of the profiles (100, 200) and each extend as far as an upper side (103, 203) of the profiles (100, 200), such that the recesses (110, 210) are open towards the upper sides (103, 203).A5. Undertrain (10) according to one of the preceding examples, wherein the recesses (110, 210) for forming the openings for receiving scaffolding coverings (20) are formed in undercut regions, wherein preferably the undercut formed regions (111, 211) are adapted to at least one outer contour (21) of a scaffolding covering (20).A6. Undertrain (10) according to one of the preceding examples, wherein the recesses (110, 210) formed in the profiles (100, 200) for forming openings for receiving scaffolding coverings (20) are each formed so as to be undercut only on one side and depending on the profile (100, 200) is either the right or left side of the respective recess (110, 210).A7. Undertrain (10) according to one of the preceding examples, wherein the profiles (100, 200) guided into one another are connected or can be connected via a screw (300), wherein preferably the screw (300) is accommodated in at least one slot and / or in at least one slot-like recess (120, 220) in at least one side wall (101, 102, 201, 202) of a profile (100, 200).A8. Undertrain (10) according to one of the preceding examples, wherein 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 to overlap at least in regions.A9. Scaffolding deck plane (1) comprising a plurality of scaffolding deckings (20) arranged in a plane and running parallel to one another, which are connected, preferably positioned and fixed relative to one another, by means of a base (10) according to one of the preceding examples running transversely to the scaffolding deckings (20).A10. Scaffolding deck plane (1) according to example A9, wherein the scaffolding deckings (20) are substantially C-shaped in cross section and / or have lateral webs with an inwardly projecting geometry, wherein preferably the webs of a scaffolding deck (20) each engage in an undercut region (111, 211) of another profile (100, 200) of the underlay (10).A11. Scaffolding deck plane (1) according to Besipsiel A9 or A10, wherein the two externally located scaffolding deckings (20) each engage in a recess (140, 240), open at the end face, of a profile (100, 200) of the underlay (10).A12. Method for forming a scaffold platform plane (1), in which a plurality of scaffold platforms (20) arranged in a plane and running parallel to one another are connected, preferably positioned and fixed relative to one another, using an underlay (10) according to one of Claims 1 to 8.A13. Method according to Example 12, wherein, after the mounting of the scaffolding coverings (20), the undertrain (10) is aligned transversely with respect to the scaffolding coverings (20) and is placed with the recesses (110, 210) upwards from below on the scaffolding coverings (20), such that the scaffolding coverings (20) engage in the recesses (110, 120), then the profiles (100, 200) of the undertrain (10) are displaced longitudinally relative to one another, such that they are transferred from a mounting position into an end position in which the scaffolding coverings (20) engage via outer contours (21) in undercut regions (111, 211) of the recesses (110, 210) of the profiles (100, 200).A14. Method according to Example 13, wherein the profiles (100, 200) are fixed in their end position by means of a screw (300), wherein the screw (300) preferably falls automatically into a locking position via slotted-link-like recesses (120, 220) of the profiles (100, 200) upon a longitudinal displacement of the profiles (100, 200) relative to one another.A15. Use of an undertrain (10) according to one of Examples A1 to A8 for connecting a plurality of scaffolding coverings (20) arranged in a plane and running parallel to one another, wherein the scaffolding coverings (20) are positioned and fixed relative to one another by means of the undertrain (10).List of reference characters1 Scaffold platform plane 10 Underlay 20 Scaffold platform 21 Outer contour 30 Horizontal bar 40 Vertical stem 100 Profile 101 Side wall 102 Side wall 103 Upper side 104 Lower side 110 Cutout 111 Undercut embodied region 120 Link-like cutout 130 Opening 140 Cutout 200 Profile 201 Side wall 202 Side wall 203 Upper side 204 Lower side 210 Cutout 211 Undercut embodied region 220 Link-like cutout 230 Opening 240 Cutout 300 ScrewReferences included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedDE 10 2022 200 448.5

[0001]

Claims

Undertravel (10) for scaffolding coverings (20) for forming a scaffolding covering plane (1), comprising at least two profiles (100, 200) which are guided one inside the other in a longitudinally displaceable manner and have recesses (110, 210) which can be brought into superposition at least in regions and which form openings in the superposition region for receiving scaffolding coverings (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 at least two profiles (100, 200) are connected via a fastening means (300), wherein the fastening means (300) is received in slot-like recesses (120, 220) of the at least two profiles (100, 200), wherein the slot-like recesses (120, 220) each have a region in which the fastening means engages and / or falls when the two profiles (100, 200) assume a specific position relative to one another.Undertrain (10) according to claim 1, wherein the fastening means is a screw or a bolt and / or wherein the region of the slotted-link-like recesses (120, 220) is a lowered region.Undertravel (10) for scaffolding coverings (20) for forming a scaffolding covering plane (1), comprising at least two profiles (100, 200) which are guided one inside the other in a longitudinally displaceable manner and have recesses (110, 210) which can be brought into superposition at least in regions and which form openings in the superposition region for receiving scaffolding coverings (20), wherein the shape and / or the size of the openings is variable by longitudinally displacing the profiles (100, 200) relative to one another, characterized in that • the recesses (110, 210) for forming the openings for receiving scaffolding coverings (20) are formed in at least two parallel side walls (101, 102, 201, 202) of the profiles (100, 200) and each extend as far as an upper side (103, 203) of the profiles (100, 200), such 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 scaffolding coverings (20) are designed to be undercut in some regions; and / or • the recesses (110, 210) formed in the profiles (100, 200) for forming openings for receiving scaffolding coverings (20) are each designed to be undercut only on one side and depending on the profile (100, 200), it is either the right or left side of the respective recess (110, 210).Underdraft (10) according to one of claims 1 to 3, characterised 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.Underdraft (10) according to one of Claims 1 to 4, characterized in that at least one profile (200), preferably an inner profile (200), is of U-shaped configuration in cross section.Undertrain (10) according to one of the preceding claims 3 to 5, characterized in that the at least two profiles (100, 200) are connected via a fastening means (300), in particular a screw, wherein the fastening means (300) is accommodated in link-like recesses (120, 220) of the two profiles (100, 200), wherein the link-like recesses (120, 220) each have a region, in particular a lowered region, into which the screw (300) engages and / or falls when the at least two profiles (100, 200) assume a specific position with respect to one another.Undertrain (10) according to 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).Undertrain (10) according to one of the preceding claims 3 to 5 or 7, characterised in that the profiles (100, 200) guided one inside the other are connected or can be connected via a screw (300), wherein preferably the screw (300) is accommodated in at least one slot and / or in at least one slot-like recess (120, 220) in at least one side wall (101, 102, 201, 202) of a profile (100, 200).Undertrain (10) according to one of the preceding claims, characterized in that the profiles (100, 200) have in the region of an underside (104, 204) in each case at least one opening (130, 230) for inserting a tool, wherein the openings (130, 230) can be brought into overlapping relationship at least in regions.Scaffolding deck plane (1) comprising a plurality of scaffolding deckings (20) arranged in a plane and running parallel to one another, which are connected, preferably positioned and fixed relative to one another, via a undertrain (10) according to one of the preceding claims running transversely to the scaffolding deckings (20).Scaffolding deck plane (1) according to claim 10, characterised in that the scaffolding deckings (20) are substantially C-shaped in cross-section and / or have lateral webs with an inwardly projecting geometry, wherein preferably the webs of a scaffolding deck (20) each engage in an undercut region (111, 211) of another profile (100, 200) of the underpass (10).Scaffolding deck plane (1) according to claim 10 or 11, characterised in that the two externally located scaffolding deckings (20) each engage in a recess (140, 240), open at the end face, of a profile (100, 200) of the underpass (10).

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