DE102015109623A1 - Scaffold bar and stacking arrangement of at least two scaffold bars - Google Patents

Abstract

The invention relates to a scaffold bar (20) made of metal with a circular tube carrier profile (21) consisting of a round tube and an outer diameter (28) made of steel and a U-reinforcement profile (22) made of sheet steel. The U-reinforcement profile (22) has a base profile (49) and two parallel profile legs (50.1, 50.2) which extend in a transverse distance (52) from each other away from the base profile (49) in the same direction , Each profile leg (50.1, 50.2) has at least one opening (60.1, 60.2) for attaching and / or securing framework components to the framework bar (20). The transverse distance (52) of the profile legs (50.1, 50.2) is less than 0.6 times the outer diameter (28) of the round tube carrier profile (21).

Description

The invention relates to a metal scaffold with an elongated, rod-shaped, preferably substantially straight, circular tube support profile made of steel and an elongated, preferably substantially straight, U-reinforcement profile made of sheet steel and further relates to a stacking arrangement of at least two such scaffold bars.

Such scaffold bars are for example from the U.S. Patent 4,671,382 , especially 8th and 9 , known. These scaffold bars comprise a round tube, which is widened at each of its two mutually facing away from the tube ends to a slotted connection head, which is made in one piece from the round tube. The respective connection head can be plugged by means of its Aufsteckschlitzes on a perforated disc of a scaffold handle and can be releasably secured there by means of a connecting wedge. On the round tube, a fully closed on its longitudinal sides, U-shaped channel profile is fixed such that the parallel to each other and from a base profile of the channel profile away extending profile leg of the channel profile welded to the outer peripheral wall of the round tube are. The U-shaped channel profile has a cross-section of the two profile legs corresponding channel profile width, which is greater than the outer diameter of the round tube.

Similar scaffolding bars are also from the practice and from the product brochure of the applicant "catalog and price list" for "Layher Allround scaffolding system", Issue 01.03.2007, in the form shown there on page 8 and referred to as "O-bar, reinforced" scaffold known. This girder comprises a round tube and a reinforcing profile welded thereto, which has a triangular cross-section. Accordingly, the reinforcing profile may be referred to as V reinforcing profile. The round tube carrier profile and the V reinforcing profile are made of a steel material having a yield strength of about 320 N / mm ² .

Although Applicants' above-mentioned scaffolding bars have proven themselves in practice, it has been shown that in certain applications, for example with larger spans, these scaffold bars do not meet the requirements for a higher flexural strength or load capacity existing there. Therefore, the Applicant has developed and offered so-called "O-Double Bars, Steel" which are also shown in Applicant's above-mentioned product leaflet on page 8. These "O double bars" have also proven themselves in practice. They have a top flange O-profile in the form of a round tube made of steel, at the ends facing away from each end a connection head is welded and have a from the top flange O-profile downwardly projecting, reinforcing bottom flange O-profile, also in shape a round tube made of steel. From the use of said two round tubes of this scaffold bar results in the short name "O-double bar". The lower flange O-profile is welded to the round tube of the upper belt with the ends of its both ends bent upwards round tube parts. The round tube of the lower chord is connected by a plurality of spaced apart in the longitudinal direction of this Gerüstriegelels arranged, each a vertical distance mediating, perforated steel support plates connected to the round tube of the upper chord by welding. The round tube of the upper chord, the round tube of the lower chord and the support plates also consist of a steel material with a yield strength of about 320 N / mm ² . Although such an "O-double bar" has a greater bending strength or load capacity compared to the "O-bars, reinforced" mentioned above, but a significantly greater overall height. This leads to the fact that in a proper installation of such an "O-double bolt" in a framework in which the connection heads of the "O-double bolt" arranged horizontally adjacent to substantially the same height perforated discs of two horizontally adjacent or arranged ., erected scaffold posts are fixed in height of the scaffold floors of a next floor, the passage height is reduced by the comparatively strong downwardly projecting lower flange O-profile accordingly. This can lead to disability in the passage of people walking on the floor or on the scaffolding floors of a lower floor. Apart from these disadvantages, such "O-double bars" are comparatively expensive and have a relatively large weight.

Among other things, therefore, the applicant has advanced developments in the form of scaffold bars of the type mentioned in the unpublished on the priority date of this patent German Patent Application No. 10 2014 100 498.1 as well as in the parallel international application, also unpublished on the priority date of this patent PCT / DE2014 / 100433 , respectively in particular in the 9 and 10 and in the associated description parts. On the outer peripheral wall of the carrier profile forming a round tube of this scaffold bar is on its longitudinal sides fully closed, a U-shaped cross-section exhibiting U-reinforcement profile with in each case inwardly bent or with each attachment ends of its substantially mutually parallel U-profile legs welded. The two U-profile legs are each of a base profile of the U-reinforcement profile by 90 degrees bent or bent and each extend perpendicularly away from the base profile. In the exemplary embodiments shown and described there, the outside diameter of the round tube carrier profile is 48.3 mm and the two U-profile legs of this U-reinforcement profile have a transverse spacing which corresponds to the U-reinforcement profile width and amounts to 34 mm.

In the aforementioned scaffolding bars of the type mentioned is a fastening of existing accessory components with couplings to the respective round tube carrier profile in a longitudinal region of the respective round tube carrier profile, in which also extends the respective U-reinforcement profile and a Abhubsicherung at least one existing, on or on the round tube carrier profile resting or suspended scaffolding floor by means of a on the underside of the respective scaffold floor relative to this about a transversely, in particular perpendicular, arranged to the working surface of the scaffold floor pivot axis not pivotable or only partially possible. In addition, a comparatively large stacking space is claimed in the case of a lateral stacking or stacking of a plurality of such scaffolding bars.

It is therefore an object of the invention to provide a scaffold bar of the type mentioned, the still simpler and comparatively cost manufacturability and easier and safer manual handling, at a still relatively low overall height and a comparatively low weight, a comparatively has great flexural strength or carrying capacity and offers the favorable possibilities for attachment and / or securing of scaffolding components to the scaffolding bar and also for space-saving transport or for space-saving storage of several such scaffolding bars.

This object is achieved in a surprisingly simple manner by the features of claim 1.

Accordingly, the invention relates to a metal scaffold bar with an elongated, rod-shaped, preferably exclusively from one, in particular substantially straight, circular tube existing, preferably substantially straight, circular tube carrier profile and an elongated, preferably straight, in particular rod-shaped, U-reinforcement profile made of sheet steel wherein the circular tube carrier profile, extending in the direction of a first longitudinal axis in a first longitudinal direction, viewed in the first longitudinal direction, a carrier profile length and a carrier profile longitudinal center has, over its carrier profile length substantially constant outer diameter, a , viewed in an installed position of the Gerstriegel considered upper, support edge for laying and / or hanging a scaffold or more scaffold planks, and two in opposite directions in the first longitudinal direction facing away from each other Trägerprofil- Ends, and wherein either at each carrier profile end of the carrier profile ends in each case a separate connection head of metal, in particular malleable cast iron, gray cast iron, steel or steel, for releasably securing the Gerustriegels in the installed position on a provided with at least one opening fastener of a scaffold element is welded by means of a plug-in through the opening connection wedge or at each carrier profile end of the carrier profile ends in each case one, respectively in the installed position downwardly open, hook-shaped Einhängekralle or Einhängeklaue metal for releasably laying and / or hooking the Gerüstbar in the installed position and / or is welded to scaffolding components, and wherein the U-reinforcement profile of the tubular support section away in the installed position below the round tube support profile and in the direction of a second longitudinal axis in a second longitudinal direction, preference Sweise straight, parallel to the round tube carrier profile and / or parallel to the first longitudinal axis while bridging the carrier profile longitudinal center along the round tube carrier profile continuously extending over a reinforcing profile length corresponding to at least half of the carrier profile length of the round tube carrier profile two reinforcing profile ends facing away from each other in opposite directions, viewed in a cross section perpendicular to the second longitudinal axis, has a U-shaped cross-section, with a base profile extending in the second longitudinal direction, of which two are in extending the second longitudinal direction, lateral profile legs in a same direction away, in the installed position upwards, in a transverse distance substantially parallel to each other in the direction of a vertical in the installed position profile-leg axis and having fastening ends, the an outer wall of the round tube carrier profile are welded, and a corresponding to the transverse distance reinforcing profile width and a distance of the fastening ends of the base profile corresponding reinforcing profile height which is greater than the reinforcing profile width and which is greater than that Outer diameter of the round tube carrier profile, and wherein a first profile leg of the two lateral profile leg is provided with a first opening for securing and / or securing scaffolding components, in a first longitudinal distance to a first reinforcing profile end of the two reinforcing profile -Enden the U-reinforcement profile and at a second longitudinal distance to a second reinforcing profile end of the two reinforcing profile ends of the U-reinforcement profile is arranged, viewed in the second longitudinal direction, has a first opening length and a first opening height, which is smaller than the reinforcing profile height, and wherein a second profile leg of the two side profile legs with a second Opening is provided for securing and / or securing scaffold components, which is arranged at a third longitudinal distance to the first reinforcing profile end of the U-reinforcement profile, preferably substantially corresponding to the first longitudinal distance, and is in a fourth longitudinal Spaced apart from the second reinforcement profile end, preferably corresponding to the second longitudinal spacing substantially, viewed in the second longitudinal direction, has a second opening length, preferably substantially corresponding to the first opening length of the first opening, and a second Has breakthrough height that is less than the V strengthening profile height, preferably, and which substantially corresponds to the first opening height of the first opening, and wherein the transverse spacing of the two lateral profile legs, which extend essentially parallel to each other, is smaller than the 0, corresponding to the reinforcement profile width of the U reinforcement profile , 6 times the outer diameter of the round tube carrier profile.

According to a particularly preferred embodiment, it can be provided that the transverse spacing of the two lateral profile legs, which extend essentially parallel to each other, corresponding to the reinforcement profile width of the U reinforcement profile, is smaller than 0.5 or 0.45 times the outside diameter of the round tube carrier profile. The outer diameter of the round tube carrier profile may preferably be about 47 mm to 49 mm, in particular about 48.3 mm. The reinforcing profile width or the transverse spacing may particularly preferably be about 15 mm to 25 mm, in particular about 20 mm. As a result, a particularly space-saving transport or a space-saving storage in particular of several such scaffolding bars is possible.

According to an advantageous development it can be provided that the first opening of the first profile leg and the second opening of the second profile leg are arranged with respect to the U-reinforcement profile at a substantially same height. This allows a particularly advantageous attachment of accessories with couplings by a coupling part of the respective coupling can be inserted through both the first opening of the first profile leg and through the second opening of the second profile leg of the U-reinforcement profile.

According to a particularly preferred embodiment, it can be provided that the first opening of the first profile leg and the second opening of the second profile leg of the U-reinforcement profile are bounded by the outer wall of the round tube carrier profile. As a result, accessories with couplings on the round tube carrier profile in a longitudinal region of the round tube carrier profile, in which this is provided with the U-reinforcing profile, attached in each case with at least one coupling shell, in particular a coupling half shell, in a particularly advantageous manner become.

According to a preferred development it can be provided that the first opening of the first profile leg, viewed in a viewing direction perpendicular to a plane containing the first longitudinal axis and the second longitudinal axis, either at least partially the second opening of the second profile leg of the U-reinforcement profile or overlaps more than half of their aperture area or is substantially aligned with the second aperture. As a result, a further improvement in terms of the above advantages can be achieved.

According to an advantageous embodiment it can be provided that the first profile leg of the U-reinforcement profile in the region of the first opening has a first profile leg height which is greater than half of the reinforcing profile height and that the second profile leg of the U-reinforcement profiles in the region of the second opening has a second profile leg height which is greater than half of the reinforcing profile height and / or that the first opening height of the first opening of the first profile leg and the second opening height the second opening of the second profile leg is in each case smaller than half of the reinforcement profile height. As a result, on the one hand, the flexural strength or load-bearing capacity of the scaffold bar can be increased and, on the other hand, can be secured against lifting off the scaffolding bar at the same time from the viewpoint of favorable manual handling of the scaffold bar and / or from the viewpoint of attachment of accessories with couplings or lifting-off protection Scaffolding floors, a sufficiently large opening height of the openings realized or ensured.

Preferably, the first aperture height and the second aperture height are each at least 19 mm or at least 25 mm or about 30 mm.

According to a particularly preferred embodiment, it may be provided that the first profile leg height of the first profile leg the U-reinforcement profile is greater than 1.0 times or 1.2 times or 1.4 times the first opening height of the first opening of the first profile leg and / or that the second profile leg Height of the second profile leg of the U-reinforcement profile is greater than 1.0 times or 1.2 times or 1.4 times the second opening height of the second opening of the second profile leg. As a result, a further improvement in terms of the above advantages can be achieved.

Preferably, the second profile leg height of the second profile leg substantially corresponds to the first profile leg height of the first profile leg.

According to a very particularly preferred embodiment, it can be provided that the first profile limb of the U reinforcement profile is provided with at least one third opening for fastening and / or securing scaffolding components which, viewed in the second longitudinal direction, are arranged in a first opening longitudinal direction. Distance to the first opening, preferably arranged at a substantially same height as the first opening, and which is arranged at a fifth longitudinal distance to the first reinforcing profile end, preferably corresponding to the second longitudinal distance substantially, and is in arranged at a sixth longitudinal distance to the second reinforcing profile end, preferably corresponding to the first longitudinal distance substantially, and having viewed in the second longitudinal direction, a third aperture length and a third aperture height which is smaller than the reinforcing profile Height, preferably and that of him Most of the first opening breakthrough corresponds substantially, and wherein the second profile leg of the U-reinforcement profile is provided with at least one fourth opening for attaching and / or securing scaffolding components, which, viewed in the second longitudinal direction, in one, preferably the second aperture longitudinal distance to the second aperture substantially corresponding to the first aperture longitudinal distance, preferably at substantially the same height as the second aperture, and at a seventh longitudinal distance to the first gain profile end of the second aperture; Reinforcement profile is arranged, preferably corresponding to the fifth longitudinal distance substantially, and which is arranged at an eighth longitudinal distance to the second reinforcing profile end of the U-reinforcing profile, preferably corresponding to the sixth longitudinal distance substantially, and the viewed in the second longitudinal direction, a fourth major refractive length and a fourth aperture height which is smaller than the gain profile height, preferably and which substantially corresponds to the third aperture height of the third aperture. This will provide in the longitudinal direction along the round tube carrier profile several attachment options for accessories with couplings and / or for against lifting scaffold floors to be minimized overall weight of the scaffold bar and at a still high bending strength or carrying capacity of the scaffold bar.

Preferably, the first opening and / or the second opening and / or the third opening or each opening, as viewed in the second longitudinal direction, may be elongated or elongate and / or rectangular in shape. This allows, in the longitudinal direction along the circular tube carrier profile within the respective aperture variable or different mounting and / or securing positions for the scaffold bar, in particular on the round tube carrier profile, to be fastened and / or secured or fastened and / or secured scaffolding components are realized. In addition, this can be the total weight of the scaffold bar minimized, with a still high flexural strength or load capacity of the scaffolding bar.

According to a preferred embodiment, it can be provided that the two lateral, substantially parallel extending profile limbs of the U-reinforcement profile are arranged symmetrically to a longitudinal axis of symmetry contained in the first longitudinal axis and the second longitudinal axis. According to a preferred embodiment, it may be provided that the U-reinforcement profile is formed symmetrically to a longitudinal plane of symmetry contained in the first longitudinal axis and the second longitudinal axis. These measures allow a further improved flexural strength or load-bearing capacity of the scaffold bar and also allow further improved storage or stacking conditions, in particular of two such scaffold bars.

According to an advantageous development it can be provided that the U-reinforcement profile is produced by folding, bending and / or profiling on a roller train of a plate-shaped or strip-shaped steel sheet and / or that the base profile of the U-reinforcement profile away from the round tube carrier profile outside, ie convex, preferably with the formation of an inner radius and / or an outer radius, is curved and, viewed in a cross section perpendicular to the second longitudinal axis, has a semicircular cross-section. These measures enable a particularly simple and cost-effective production as well as an advantageous flexural strength or carrying capacity of the scaffold bar.

The invention also relates to a stack arrangement of at least two scaffold bars comprising a first scaffold bar according to the invention and at least one second scaffold bar according to the invention, wherein the round tube carrier profile of the second scaffold bar on or on a profile leg of the two substantially parallel profile legs of the U-reinforcement profile the U-reinforcement profile of the second girder crossbar with a profile leg of its two substantially parallel profile legs on or on the round tube carrier profile of the first scaffold crucible on or rests, preferably, so that the profile Leg axis of the U-reinforcing profile of the second scaffolding crossbar and the profile-leg axis of the U-reinforcing profile of the first scaffolding crossbar run approximately parallel. Such a stack arrangement is particularly space-saving or allows a particularly space-saving storage by stacking the at least two scaffolding bars according to the invention or on each other. In the case of laterally stacking several scaffolding bars according to the invention in a stacking arrangement according to the invention, an advantageous securing of the position results due to a reduced risk of a lateral slippage or slippage of the superposed scaffolding bars relative to one another. This means a corresponding advantage compared to scaffold bars whose reinforcing profile has a triangular V-shaped cross section, as in the case of the "O-bar, reinforced" mentioned above.

It is particularly advantageous if the scaffold bars or the first scaffold bar and the second scaffold bar are of essentially the same design. This allows particularly advantageous stacking and space conditions.

It can be provided according to a particularly preferred embodiment that the profile leg axis of the first scaffold bar and the profile-leg axis of the second scaffold bar have a stack spacing to each other, which is 0.5 times the sum of the outer diameter and the Verstärkungsprofil- Width or the transverse distance is. This allows further improved stacking and space conditions.

According to a preferred embodiment, it can be provided that the round tube carrier profile and / or the U-reinforcement profile consists or consist of a high-strength steel material. Preferably, the round tube carrier profile and / or the U reinforcement profile is made of high-strength steel material and / or the round tube carrier profile and / or the U reinforcement profile are made of high-strength steel material. The use of such a high-strength steel material allows a significantly improved flexural strength or load-bearing capacity of the scaffold bar produced therefrom.

The respective connection head may preferably be designed with an upper head part in the installed position and a lower head part in the installed position, between which an open slot for horizontal attachment of the connection head to the one with an opening or with a plurality of forward, preferably also to the sides Openings provided, for example, designed as a mounting flange, fastener of the scaffold element may be formed. The respective connection head can have at least one wedge opening, preferably two wedge openings, for insertion or insertion of the connection wedge. When the terminal head is formed with an upper head part and a lower head part and a slot formed therebetween, both the upper head part and the lower head part may each have at least one wedge opening for inserting the terminal wedge. The connection head may be formed with vertical in the installed position side surfaces. The slot may also be designed to be open to the side surfaces. The side surfaces may include a wedge angle, preferably 40 to 50 degrees, more preferably about 44 degrees or about 45 degrees or about 46 degrees. The side surfaces may face toward a center, preferably on a stem and / or disk center of a hole disc attached to the scaffold element, for example a handle, and / or in the direction of a central axis of the scaffold element, preferably in the direction of a Stem axis of a scaffold stem, tapered. The connecting wedge may preferably be captively fastened to the connection head, preferably with the aid of a securing element, for example a rivet, which prevents it from being removed, in particular withdrawn, from the connection head.

It is understood, however, that the respective connection head can also be designed differently. For example, the connection head may be provided with a transversely, preferably approximately perpendicularly, to the first longitudinal axis of the round tube carrier profile and in the installed position downwards, in particular below the outer wall or the outer diameter of the round tube carrier profile, extending insertion nose. About this lug of the connection head in the vertical direction or in the direction of a perforation axis of the at least one opening of the fastener to the fastening element of the framework element can be releasably attached or be. In other words, such a connection head can be detachably fastened or fastened to the fastening element having at least one opening in such a way that its insertion nose in vertical direction is inserted through the opening of the fastener and is. This is in contrast to the above-mentioned embodiment of a scaffold crucible in which the respective connection head has a forwardly open and horizontally slotted slot, which allows or requires a horizontal attachment to the fastener and thus horizontally on the fastener, such as the perforated disc , is attached or is.

The fastening element may preferably be an at least one opening, preferably a plurality of apertures arranged offset in the circumferential direction, preferably in the same circumferential curvature, in particular of 45 degrees, having rosette, in particular perforated disk, of a framework element, preferably of a scaffolding tube, in particular of a scaffold post. act.

It is understood that the above features and measures within the feasibility of the invention are arbitrarily combinable.

Further advantages, features and aspects of the invention can be taken from the following description part, in which a preferred embodiment of the invention with reference to the figures.

Show it:

1 a three-dimensional representation of a mounted in a position on the perforated discs of two scaffolds of a scaffold scaffold and built scaffolding floors;

2 a side view of the scaffold bar, wherein the latter are shown in phantom with their perforated discs to illustrate its installation position and its mounting on the two scaffold posts;

3 the scaffold bar in a plan view from above;

4 a greatly enlarged cross section of the scaffolding crossbar along the section lines 4-4 in the 2 and 3 , without representation of the connection head;

5 a possible stacking arrangement of two scaffold bars.

The scaffolding bar 20 made of metal comprises as essential elements an elongated, rod-shaped round tube carrier profile 21 made of, preferably galvanized, steel and an elongated U-reinforcement profile 22 made of, preferably galvanized, sheet steel.

The round tube carrier profile 21 consists of a substantially straight, substantially circular cylindrical round tube. The round tube carrier profile 21 extends in the direction of a first longitudinal axis 23 in a first longitudinal direction 24 and has two beam profile ends facing away from each other in opposite directions in the first longitudinal direction 25.1 . 25.2 , The round tube carrier profile 21 points, in the first longitudinal direction 24 considered, a carrier profile length 26 and a carrier profile longitudinal center 27 as well as one over its carrier profile length 26 substantially constant outer diameter 28 on. The round tube carrier profile 21 has substantially over its entire carrier profile length 26 or substantially over its entire carrier profile extent a substantially constant carrier profile wall thickness 29 on. The round tube carrier profile 21 has one, in a built-in position 30 of the scaffolding bar 20 considered upper, Auflagerand 31 for laying on and / or attaching a scaffold decking 39 or more scaffolding coverings 39 , At each beam profile end 25.1 . 25.2 the beam profile ends 25.1 . 25.2 each is a separate connection head 32 made of metal, in particular of malleable cast iron, gray cast iron, cast steel or steel, for releasably securing the scaffold bar 20 in the installation position 30 at one with at least one opening 33.1 . 33.2 provided fastener 34 a scaffolding element 36 by means of a through the at least one opening 33.1 . 33.2 pluggable connection wedge 35 welded.

As in the 1 to 3 illustrated, the scaffold can 20 over his two connecting heads 32 . 32 in a manner known per se with the aid of a respective connecting wedge 35 on each of a perforated disc 34 a scaffolding handle 36 be attached. As also shown there, on or on the scaffolding bar 20 in a likewise known manner several scaffolding floors 39 , in the first longitudinal direction 24 considered side by side, be determined, for example by means of the hooks or claws shown 37 ,

The U-reinforcement profile 22 extends in the direction of a second longitudinal axis 43 in a second longitudinal direction 44 parallel to the round tube carrier profile 21 or parallel to its first longitudinal axis 23 under bridging the beam profile longitudinal center 27 along the round tube carrier profile 21 continuous over a reinforcing profile length 45 that is at least half the beam profile length 26 of the round tube carrier profile 21 equivalent. In the embodiment shown, the carrier profile length is 26 about 940 mm and the reinforcing profile length 45 is about 720 mm. The U-reinforcement profile 22 is opposite the round tube carrier profile 21 , in the first longitudinal direction 24 viewed, centered centered. Accordingly, the round tube carrier profile extends 21 with its respective carrier profile end 25.1 . 25.2 , in the first longitudinal direction 24 considered over the respective gain profile end 47.1 . 47.2 the U-reinforcement profile 22 out. In the embodiment shown, the respective carrier profile end 25.1 . 25.2 of the round tube carrier profile 21 to the respective associated gain profile end 47.1 . 47.2 the U-reinforcement profile 22 , in the first longitudinal direction 24 considered, one distance at a time 46 on. This distance is preferably 46 about 110.0 mm. It is understood, however, that the distance can also be smaller or larger. In the U-reinforcement profile 22 it is a with respect to the second longitudinal direction 44 straight profile. The U-reinforcement profile 22 has two reinforcing profile ends facing away from each other in opposite directions 47.1 . 47.2 , The U-reinforcement profile 22 extends from the round tube carrier profile 21 away, in the installation position 30 to below the round tube carrier profile 21 , The U-reinforcement profile 22 points, in a direction perpendicular to the second longitudinal axis 43 extending cross section, a U-shaped cross-section 48 on (see in particular 4 ). The U-reinforcement profile 22 includes a in the second longitudinal direction 44 just extending base profile 49 and two lateral profile thighs 50.1 . 50.2 , The profile thighs 50.1 . 50.2 extend from the base profile 49 in a same direction, viewed in the installed position upward, away substantially parallel to one another in the direction of one in the installed position 30 vertical profile-thigh axis 51 in a transverse distance 52 to each other. The base profile 49 is from the round tube carrier profile 21 away to the outside ie convex to form an inner radius 53 or with an inner radius 53 arched. The inner radius 53 is for example 7 mm. In a cross section perpendicular to the second longitudinal axis 44 considered, assigns the base profile 49 a semicircular cross section 54 on. The two lateral profile thighs 50.1 . 50.2 extend in the second longitudinal direction 44 essentially parallel to each other. A first profile thigh 50.1 the two profile legs 50.1 . 50.2 indicates one of the base profile 49 pointing away first attachment end 55.1 on. A second profile leg 50.2 the two profile legs 50.1 . 50.2 indicates one of the base profile 49 pointing away second attachment end 55.2 on. The first attachment end 55.1 of the first profile leg 50.1 points from the base profile 49 a first distance 56 on and the second attachment end 55.2 of the second profile leg 50.2 points from the base profile 49 a second distance equal to the first distance 56 , Each profile thigh 50.1 . 50.2 the two profile legs 50.1 . 50.2 is with his from the base profile 49 Away Facing End 55.1 . 55.2 on the circular cylindrical outer wall 38 of the round tube carrier profile 21 welded. The outer wall 38 can also be referred to as the outer peripheral wall. The two profile legs 50.1 . 50.2 extend, in a cross section perpendicular to the second longitudinal axis 43 considered, in the transverse distance 52 parallel to each other. The U-reinforcement profile 22 has a transverse distance 52 corresponding U-reinforcement profile width 52 and a the distance 56 the fastening ends 55.1 . 55.2 from the base profile 49 corresponding reinforcement profile height 56 on. The reinforcement profile height 56 is greater than the gain profile width 52 and is also larger than the outer diameter 28 of the round tube carrier profile 21 ,

The transverse distance 52 the two lateral, substantially parallel to each other extending profile leg 50.1 . 50.2 or the reinforcement profile width 52 the U-reinforcement profile 22 is less than 0.6 times the outside diameter 28 of the round tube carrier profile 21 , In the embodiment shown, the transverse distance is 52 or the U-reinforcement profile width 52 about 20.0 mm. The outer diameter 28 of the round tube carrier profile 21 is about 48.3 mm. Accordingly, in the embodiment shown, the quotient or the ratio of the transverse distance 52 or the U-reinforcement profile width 52 and the outside diameter 28 of the round tube carrier profile 21 about 0.41. The wall thickness of the round tube carrier profile 29 here is about 2.7 mm. The wall thickness 57 the profile thigh 50.1 . 50.2 the U-reinforcement profile 22 here is about 3.0 mm.

The first profile thigh 50.1 the two lateral profile thighs 50.1 . 50.2 is two each in the second longitudinal direction 44 extending, elongated, rectangular, openings 60.1 . 60.2 provided for securing and / or securing of scaffolding components not shown in the figures. A first opening 60.1 the two openings 60.1 . 60.2 is at a first longitudinal distance 61.1 to the first reinforcing profile end 47.1 the U-reinforcement profile 22 and at a second longitudinal distance to the second reinforcing profile end 47.2 the two U-reinforcement profile ends 47.1 . 47.2 the U-reinforcement profile 22 arranged. The other, also with third opening, designated opening 60.3 the two openings 60.1 . 60.3 of the first profile leg 50.1 is at a fifth longitudinal distance from the first reinforcing profile end 47.1 arranged corresponding to the second longitudinal distance substantially and is in a sixth longitudinal distance 61.6 to the second reinforcing profile end 47.2 arranged, the first longitudinal distance 61.1 essentially corresponds. The first opening 60.1 and the other or third opening 60.3 are at a first breakthrough longitudinal distance 62.1 to each other on a substantially are arranged at the same height and respectively, from that in the first longitudinal direction 24 considered, straight outer wall 38 of the round tube carrier profile 21 , in the installation position 30 upwards, limited.

Also the second profile leg 50.2 the two lateral profile thighs 50.1 . 50.2 is two each in the second longitudinal direction 44 extending, elongated, rectangular, openings 60.2 for fastening and / or securing of scaffolding components not shown in the figures or the said scaffolding components. The one opening of these two openings, which also with second opening 60.2 is at a third longitudinal distance to the first reinforcing profile end 47.1 of the U reinforcement filament 22 arranged substantially the first longitudinal distance 61.1 and is at a fourth longitudinal distance from the second reinforcing profile end 47.2 arranged, which corresponds substantially to the second longitudinal distance. The other opening of these two openings 60.2 , also referred to as the fourth aperture, is at a seventh longitudinal distance from the first reinforcing profile end 47.1 the U-reinforcement profile 22 arranged substantially corresponding to the fifth and second longitudinal spacing. In addition, the fourth aperture is at an eighth longitudinal distance from the second U-reinforcement profile end 47.2 the U-reinforcement profile 22 arranged substantially corresponding to the sixth or first longitudinal distance. The one or second opening 60.2 and the other and fourth openings, respectively, are disposed at a same height at a second pitch longitudinal distance from each other and are respectively spaced from, in the first longitudinal direction 24 considered, straight outer wall 38 of the round tube carrier profile 21 , in the installation position 30 upwards, limited. The second aperture longitudinal distance is substantially the same size as the first aperture longitudinal distance 62.1 , The first breakthrough longitudinal distance 62.1 and second perforation longitudinal distance here are each about 34 mm. The first, third, sixth and eighth longitudinal distances here are each about 80 mm. The second, fourth, fifth and seventh longitudinal spacing here are each about 377 mm.

Each of the four openings 60.1 . 60.2 . 60.3 points, in a direction perpendicular to the second longitudinal direction 44 considered, a substantially equal breakthrough height 63 and, in the second longitudinal direction 44 considered, a substantially equal opening length 64 on. The respective opening length 64 here is about 263 mm. It will be understood, however, that any aperture, in particular for longer girder bars, may also have a different aperture length, for example about 158 mm or about 286 mm or about 478 mm. It is further understood that each profile leg can also have more than two openings, in particular three to eight openings. If each profile limb contains more than two openings, preferably the openings lying closest to the respective reinforcing profile ends have an opening length, in each case the opening length 64 corresponds to, that is about 263 mm.

Each of the four openings 60.1 . 60.2 . 60.3 has a substantially equal opening cross section. The opening height 63 every breakthrough 60.1 . 60.2 . 60.3 is smaller than the reinforcement profile height 56 , In a viewing direction perpendicular to a first longitudinal axis 23 and the second longitudinal axis 43 containing level 65 considered, both the first opening are aligned 60.1 of the first profile leg 50.1 and the second opening 60.2 of the second profile leg 50.2 as well as the third opening 60.3 of the first profile leg 50.1 and the fourth opening of the second profile leg 50.2 each substantially or are arranged in pairs substantially congruent. Each of the four openings 60.1 . 60.2 . 60.3 is in a viewing direction perpendicular to the first longitudinal axis 23 and the second longitudinal axis 43 level or longitudinal plane of symmetry 65 considered, of wall parts of the respective profile-leg 50.1 . 50.2 the U-reinforcement profile 22 and from a wall part of the outer wall 38 of the round tube carrier profile 21 completely limited or enclosed.

The two profile legs 50.1 . 50.2 the U-reinforcement profile 22 each point in the area of their openings 60.1 . 60.3 ; 60.2 a substantially equal profile leg height 66 which is greater than half the gain profile height 56 , Accordingly, the respective opening height 63 the breakthroughs 60.1 . 60.3 ; 60.2 the two profile legs 50.1 . 50.2 the U-reinforcement profile 22 each less than half of the gain profile height 56 , The breakthrough heights 63 the breakthroughs 60.1 . 60.3 ; 60.2 are essentially the same size. In the embodiment shown, the respective opening height is 63 about 30.0 mm. The profile leg height 66 which the profile thighs 50.1 . 50.2 the U-reinforcement profile 22 each in the area of the openings 60.1 . 60.3 ; 60.2 here is about 43.0 mm. The reinforcement profile height 56 is about 73.0 mm in the embodiment shown.

In the embodiment shown, the scaffolding bar 20 symmetrical to a first longitudinal axis 23 and the second longitudinal axis 43 included longitudinal symmetry plane 65 and also symmetrical to a carrier profile longitudinal center 27 of the round tube carrier profile 21 containing transverse symmetry plane 67 trained or designed. Accordingly, the U-reinforcement profile 22 and thus also the two lateral, substantially parallel to each other extending profile leg 50.1 . 50.2 the U-reinforcement profile 22 , symmetrical to the longitudinal plane of symmetry 65 and also symmetrical to the transverse symmetry plane 67 trained or designed. The two symmetrical to the longitudinal plane of symmetry 65 designed and arranged profile legs 50.1 . 50.2 the U-reinforcement profile 22 of the scaffolding bar 20 extend on both sides of the longitudinal plane of symmetry 65 and thus on either side of a perpendicular to the second longitudinal axis 43 trained profile-thigh axis 51 the U-reinforcement profile 22 parallel to each other.

The two profile legs 50.1 . 50.2 the U-reinforcement profile 22 are with their attaching ends 55.1 . 55.2 each opposite the longitudinal plane of symmetry 65 arranged laterally offset by an equal distance, which is half the transverse distance 52 or half of the U-gain professional width 52 equivalent. That is why the profile thighs sit 50.1 . 50.2 the U-reinforcement profile 22 and thus sits the U-reinforcement profile 22 not on the in the installation position 30 lowest point of the round tube carrier profile 21 but from the center 40 of the round tube carrier profile 21 or from the longitudinal plane of symmetry 65 offset to both sides. This results in an effective gain profile height 68 by a distance or amount 69 is slightly smaller than the reinforcing profile height 56 and results in an effective breakthrough height 70 the respective opening 60.1 . 60.3 ; 60.2 , by the same distance or amount 69 smaller than the respective opening height 63 , The effective reinforcement profile height 68 here is about 71.96 mm. The effective opening height 70 here is about 28.96 mm. Accordingly, the effective gain profile height 68 opposite the reinforcement profile height 56 by the distance or amount 69 reduced by about 1.04 mm. Accordingly, the scaffold bar 20 an overall height 71 on, the sum of the outer diameter 28 of the round tube carrier profile 21 and the effective gain profile height 68 equivalent. The total height 71 here is calculated about 120.26 mm (see 4 ). Also the effective opening height 70 is opposite the breakthrough height 63 by the amount 69 reduced by about 1.04 mm.

Preferably, the U-reinforcement profile 22 by bending, bending and or profiling on a roller train of a plate-shaped or band-shaped, preferably plane-flat, steel sheet or sheet steel semi-finished product, not shown in the figures, produced about a single bending or bending axis.

The scaffold bar according to the invention 20 offers an advantageous possibility for attachment of, in particular already existing, not shown in the figures accessory components with, in particular standardized, preferably integrated, couplings in a longitudinal region of the round tube carrier profile 21 , in which also the U-reinforcement profile 22 extends, and / or for securing at least one on or on the round tube carrier profile 21 resting or suspended, in particular existing, scaffolding floor 39 against lifting by means of a at the bottom of the or the respective scaffolding floor 39 relative to this by a transverse, in particular perpendicular, to the working surface of the scaffolding floor 39 arranged pivot axis pivotable, not shown in the figures safety bolt.

In 5 is a stacking arrangement 75 of two scaffold bars according to the invention 20 shown comprising a first scaffold bar 20.1 and a second scaffolding bar 20.2 , The first scaffolding bar 20.1 and the second scaffolding bar 20.2 are the same. In other words, the stacking arrangement shows two identical scaffold bars 20 ,

In the in 5 shown stack arrangement 75 is the second scaffolding bar 20.2 opposite the first scaffolding bar 20.1 180 degrees around the first longitudinal axis 23 of the first girder crossbar 20.1 rotated such that, in a cross-section perpendicular to the first and second longitudinal axis 23 respectively. 43 of the first girder crossbar 20.1 considered that with the respective base profile 49 of the respective U-reinforcement profile 22 formed or limited ends 76 of the respective U-reinforcement profile 22 pointing in opposite directions away from each other or that the U-reinforcement profile 22 of the first girder crossbar 20.1 from its round tube carrier profile 21 and the reinforcement profile 22 of the second framework crucible 20.2 from its round tube carrier profile 21 pointing away in opposite directions.

The round tube carrier profile 21 of the second framework crucible 20.2 lies on or on a profile leg 50.1 the two substantially parallel profile legs 50.1 . 50.2 the U-reinforcement profile 22 of the first girder crossbar 20.1 and the U-reinforcement profile 22 of the second framework crucible 20.2 lies with a profile leg 50.1 his two substantially parallel profile thighs 50.1 . 50.2 on or on the round tube carrier profile 21 of the first girder crossbar 20.1 so that the profile-thigh axis 51 the U-reinforcement profile 22 of the second framework crucible 20.2 and the profile-thigh axis 51 the U-reinforcement profile 22 of the first girder crossbar 20.1 run approximately parallel (see 5 ). Such a stack arrangement 75 is particularly space-saving or allows a particularly space-saving storage by stacking the least two scaffolding bars according to the invention 20 ; 20.1 . 20.2 on or on each other. The profile-thigh axis 51 of the first girder crossbar 20.1 and the parallel profile leg axis 51 of the second framework crucible 20.2 have a stack spacing 77 to each other, which is 0.5 times or half of the sum of the outer diameter 28 of the respective round tube carrier profile 21 and the reinforcing profile width 52 of the respective U-reinforcement profile 22 or the transverse distance 52 the respective profile leg 50.1 . 50.2 of the respective U-reinforcement profile 22 is. In the embodiment shown, said stack spacing is 77 only about 34.15 mm.

LIST OF REFERENCE NUMBERS

20

 scaffolding bars

20.1

 (first) scaffolding bar

20.2

 (second) scaffolding bar

21

 Circular tube support section / round tube

22

 U-gain profile

23

first longitudinal axis of 21

24

 first longitudinal direction

25.1

 (first) Carrier Profile End

25.2

 (second) Carrier Profile End

26

 Support profile Length

27

 Carrier profile longitudinal center

28

Outside diameter of 21

29

 (Trägerprofil-) Wall thickness

30

 installation position

31

(upper) Auflagerand of 21

32

 connection head

33.1

 perforation

33.2

 perforation

34

 Fastener / Rosette / perforated disc

35

 connecting wedge

36

 Scaffolding element / frame strut

37

 Hook / claw

39

 Scaffolding platform / scaffolding floor

40

 Focus

43

second longitudinal axis of 22

44

 second longitudinal direction

45

 Gain profile length

46

 Distance (110)

47.1

 (first) reinforcing profile end / longitudinal end

47.2

 (wide) reinforcing profile end / longitudinal end

48

 U-shaped cross-section

49

 Base profile

50.1

 (first) profile leg

50.2

 (second) profile leg

51

 Profile-leg axis

52

 Transverse spacing / gain profile width

53

 inner radius

54

 (semicircular) cross-section

55.1

(first) attachment end of 50.1

55.2

(second) attachment end of 50.2

56

 Distance / U-profile height

57

 (Verstärkungsprofil-) Wall thickness

60.1

 (first) opening

60.2

 (second) opening

60.3

 (third) breakthrough

61.1

 (first) longitudinal distance

61.6

 (sixth) longitudinal distance

62.1

 (first) breakthrough longitudinal distance

63

 By refraction height

64

 By refraction length

65

 (Longitudinal symmetry) level

66

 Profile-leg-height

67

 (Cross-symmetry) level

68

 effective reinforcement profile height

69

 Distance / Amount

70

 effective breakthrough height

71

 total height

75

 stack assembly

77

 stacking distance

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• US 4671382 [0002]
• DE 102014100498 [0005]
• DE 2014/100433 [0005]

Claims (15)

Metal scaffolding bar with an elongated, rod-shaped round tube carrier profile ( 21 ) made of steel and an elongated U-reinforcement profile ( 22 ) of sheet steel, having the following characteristics: the round tube carrier profile ( 21 ) extends in the direction of a first longitudinal axis ( 23 ) in a first longitudinal direction ( 24 ), in the first longitudinal direction ( 24 ), a carrier profile length ( 26 ) and a carrier profile longitudinal center ( 27 ), has an over its carrier profile length ( 26 ) substantially constant outer diameter ( 28 ), has a, in an installed position ( 30 ) of the scaffold bar ( 20 ) considered upper, Auflagerand ( 31 ) for laying and / or hanging a scaffold decking ( 39 ) or several scaffolding coverings ( 39 ) and includes two in opposite directions in the first longitudinal direction ( 24 ) facing away from each other carrier profile ends ( 25.1 . 25.2 ); either is at each carrier profile end ( 25.1 . 25.2 ) of the carrier profile ends ( 25.1 . 25.2 ) each have a separate connection head ( 32 ) of metal for releasably securing the scaffold bar ( 20 ) in the installed position ( 30 ) at one with at least one opening ( 33.1 . 33.2 ) fastener ( 34 ) of a scaffolding element ( 36 ) by means of a through the opening ( 33.1 . 33.2 ) pluggable connection wedge ( 35 ) or is welded to each carrier profile end of the carrier profile ends one, respectively in the installed position downwardly open, hook-shaped Einhängekralle or Einhängeklaue metal for releasably laying and / or hooking the Gerüstriegels in the installed position and / or welded to scaffolding components ; the U-reinforcement profile ( 22 ) extends from the round tube carrier profile ( 21 ), in the installed position ( 30 ) to below the round tube carrier profile ( 21 ), extends in the direction of a second longitudinal axis ( 43 ) in a second longitudinal direction ( 44 ) parallel to the round tube carrier profile ( 21 ) and / or parallel to its first longitudinal axis ( 23 ) while bridging the carrier profile longitudinal center ( 27 ) along the tubular support profile ( 21 ) throughout a gain profile length ( 45 ), which is at least half of the carrier profile length ( 26 ) of the round tube carrier profile ( 21 ), has two in opposite directions in the second longitudinal direction ( 44 ) facing away from each other reinforcing profile ends ( 47.1 . 47.2 ), points in a direction perpendicular to the second longitudinal axis ( 43 ) extending cross section, a U-shaped cross-section ( 48 ), is in the second longitudinal direction ( 44 ) extending base profile ( 49 ), of which two in the second longitudinal direction ( 44 ) extending, lateral profile legs ( 50.1 . 50.2 ) in the same direction, in the installed position ( 30 ) looks up, at a transverse distance ( 52 ) substantially parallel to one another in the direction of one in the installed position ( 30 ) vertical profile leg axis ( 51 ) and fastening ends ( 55.1 . 55.2 ), which on an outer wall of the round tube carrier profile ( 21 ) are welded and has a transverse distance ( 52 ) corresponding reinforcement profile width ( 52 ) and a distance ( 56 ) of the fastening ends ( 55.1 . 55.2 ) from the base profile ( 49 ) corresponding reinforcement profile height ( 56 ) which is greater than the gain profile width ( 52 ) and which is larger than the outer diameter ( 28 ) of the round tube carrier profile ( 21 ); a first profile leg ( 50.1 ) of the two lateral profile limbs ( 50.1 . 50.2 ) is with a first opening ( 60.1 ) for securing and / or securing scaffolding components; the first opening ( 60.1 ) is at a first longitudinal distance ( 61.1 ) to a first reinforcing profile end ( 47.1 ) of the two reinforcing profile ends ( 47.1 . 47.2 ) of the U-reinforcement profile ( 22 ) and at a second longitudinal distance to a second reinforcing profile end ( 47.2 ) of the two reinforcing profile ends ( 47.1 . 47.2 ) of the U-reinforcement profile ( 22 ), has, in the second longitudinal direction ( 44 ), a first breakthrough length ( 64 ) and has a first breakthrough height ( 63 ), which is smaller than the gain profile height ( 56 ); a second profile leg ( 50.2 ) of the two lateral profile limbs ( 50.1 . 50.2 ) is with a second opening ( 60.2 ) for securing and / or securing scaffolding components; the second opening ( 60.2 ) is at a third longitudinal distance to the first reinforcing profile end ( 47.1 ) of the U-reinforcement profile ( 22 ) and is at a fourth longitudinal distance to the second reinforcing profile end ( 47.2 ), has, in the second longitudinal direction ( 44 ), a second breakthrough length ( 64 ) and has a second breakthrough height ( 63 ), which is smaller than the gain profile height ( 56 ); that of the reinforcement profile width ( 52 ) of the U-reinforcement profile ( 22 ) corresponding transverse distance ( 52 ) of the two lateral, in the Substantially parallel to each other extending profile leg ( 50.1 . 50.2 ) is less than 0.6 times the outer diameter ( 28 ) of the round tube carrier profile ( 21 ). Scaffolding frame according to claim 1, characterized in that the reinforcing profile width ( 52 ) of the U-reinforcement profile ( 22 ) corresponding transverse distance ( 52 ) of the two lateral, substantially parallel to each other extending profile leg ( 50.1 . 50.2 ) is less than 0.5 or 0.45 times the outer diameter ( 28 ) of the round tube carrier profile ( 21 ). Scaffolding frame according to claim 1 or 2, characterized in that the first opening ( 60.1 ) of the first profile leg ( 50.2 ) and the second opening ( 60.2 ) of the second profile leg ( 50.2 ) with respect to the U-reinforcement profile ( 22 ) are arranged at a substantially same height. Scaffolding frame according to one of the preceding claims, characterized in that the first opening ( 60.1 ) of the first profile leg ( 50.1 ) and the second opening ( 60.2 ) of the second profile leg ( 50.2 ) from the outer wall of the round tube carrier profile ( 21 ) are limited. Scaffolding frame according to one of the preceding claims, characterized in that the first opening ( 60.1 ) of the first profile leg ( 50.1 ), in a viewing direction perpendicular to a first longitudinal axis ( 23 ) and the second longitudinal axis ( 43 ) level ( 65 ), either the second opening ( 60.2 ) of the second profile leg ( 50.2 ) at least partially overlapped or with the second opening ( 60.2 ) is substantially aligned. Scaffold frame according to one of the preceding claims, characterized in that the first profile limb ( 50.1 ) of the U-reinforcement profile ( 22 ) in the area of the first opening ( 60.1 ) a first profile leg height ( 66 ), which is greater than half of the gain profile height ( 56 ) and that the second profile leg ( 50.2 ) of the U-reinforcement profile ( 22 ) in the region of the second opening ( 60.2 ) a second profile leg height ( 66 ), which is greater than half of the gain profile height ( 56 ). Scaffolding frame according to one of the preceding claims, characterized in that the first opening height ( 63 ) of the first opening ( 60.1 ) of the first profile leg ( 50.1 ) and the second breakthrough height ( 63 ) the second opening ( 60.2 ) of the second profile leg ( 50.2 ) is less than half of the gain profile height ( 56 ). Scaffolding frame according to one of the preceding claims, characterized in that the first profile leg height ( 66 ) of the first profile leg ( 50.1 ) of the U-reinforcement profile ( 22 ) is greater than 1.0 times or 1.2 times or 1.4 times the first breakthrough height ( 63 ) of the first opening ( 60.1 ) of the first profile leg ( 50.1 ) and / or that the second profile leg height ( 66 ) of the second profile leg ( 50.2 ) of the U-reinforcement profile ( 22 ) is greater than 1.0 times or 1.2 times or 1.4 times the second breakthrough height ( 63 ) the second opening ( 60.2 ) of the second profile leg ( 50.2 ). Scaffolding frame according to one of the preceding claims, characterized by the following further features: the first profile limb ( 50.1 ) of the U-reinforcement profile ( 22 ) is at least a third opening ( 60.3 ) for securing and / or securing scaffolding components, the third opening ( 60.3 ) is in the second longitudinal direction ( 44 ), in a first breakthrough longitudinal distance ( 62.1 ) to the first opening ( 60.1 ) is at a fifth longitudinal distance to the first reinforcing profile end ( 47.1 ) and is at a sixth longitudinal distance ( 61.6 ) to the second reinforcing profile end ( 47.2 ), has in the second longitudinal direction ( 44 ) has a third aperture length and has a third aperture height (FIG. 63 ), which is smaller than the gain profile height ( 56 ); the second profile leg ( 50.2 ) of the U-reinforcement profile ( 22 ) is provided with at least a fourth aperture for attaching and / or securing scaffold components; the fourth opening is, in the second longitudinal direction ( 44 ), in a second opening longitudinal distance to the second opening ( 60.2 ) is at a seventh longitudinal distance to the first reinforcing profile end ( 47.1 ) of the U-reinforcement profile ( 22 ) and is at an eighth longitudinal distance from the second reinforcing profile end ( 47.2 ) of the U-reinforcement profile ( 22 ), has, in the second longitudinal direction ( 44 ) has a fourth aperture length and has a fourth aperture height (FIG. 63 ), which is smaller than the gain profile height ( 56 ). Scaffolding frame according to one of the preceding claims, characterized in that each aperture ( 60.1 . 60.2 . 60.3 ), in the second longitudinal direction ( 44 ), elongated or elongated and / or is designed rectangular. Scaffolding frame according to one of the preceding claims, characterized in that the two lateral, substantially parallel to each other extending profile legs ( 50.1 . 50.2 ) of the U-reinforcement profile ( 22 ) symmetrical to a first longitudinal axis ( 23 ) and the second longitudinal axis ( 43 ) contained longitudinal symmetry plane ( 65 ) are arranged. Scaffolding frame according to one of the preceding claims, characterized in that the U-reinforcement profile ( 22 ) symmetrical to one or the first longitudinal axis ( 23 ) and the second longitudinal axis ( 43 ) contained longitudinal symmetry plane ( 65 ) is trained. Scaffolding frame according to one of the preceding claims, characterized in that the U-reinforcement profile ( 22 ) is produced by folding, bending and / or profiling on a roller train of a plate-shaped or strip-shaped steel sheet and / or that the base profile ( 49 ) of the U-reinforcement profile ( 22 ) of the round tube carrier profile ( 21 ) is arched outwardly and, in a cross-section perpendicular to the second longitudinal axis ( 43 ), a semicircular cross section ( 54 ) having. Stack arrangement of at least two scaffold bars, comprising a first scaffold bar ( 20 ; 20.1 ) according to one of the preceding claims and at least one second scaffolding bar ( 20 ; 20.1 ) according to one of the preceding claims, wherein the round tube carrier profile ( 21 ) of the second scaffold bar ( 20.2 ) on or on a profile leg ( 50.1 ) of the two substantially parallel profile limbs ( 50.1 . 50.2 ) of the U-reinforcement profile ( 22 ) of the first scaffold bar ( 20.1 ) or rests, and wherein the U-reinforcement profile ( 22 ) of the second scaffold bar ( 20.2 ) with a profile leg ( 50.1 ) of its two substantially parallel profile legs ( 50.1 . 50.2 ) on or on the round tube carrier profile ( 21 ) of the first scaffold bar ( 20.1 ) on or rests. Stack arrangement according to claim 14, characterized in that the first scaffold bar ( 20 ; 20.1 ) and the second scaffolding bar ( 20 ; 20.1 ) are the same.

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