EP3049591B1 - Scaffold bar - Google Patents

Description

The invention relates to a metal scaffold bar with an elongated, rod-shaped, preferably substantially straight, in a direction of a first longitudinal axis in a first longitudinal direction, preferably straight, extending support profile made of steel, viewed in the first longitudinal direction, a carrier profile length and has a carrier profile-longitudinal center, and which, viewed in a direction perpendicular to the longitudinal direction cross-section, a carrier profile width, a carrier profile height and a carrier profile wall thickness, and the one, viewed in an installed position upper, Auflagerand or, in the installation position considered upper, support edges for laying and / or hanging a scaffold decking or multiple scaffold coverings, and wherein the carrier profile has two in opposite directions in the first longitudinal direction away from each other extending carrier profile ends on which, directly or indirectly, entede r in each case a connection head made of metal, in particular made of malleable cast iron, gray cast iron, cast steel or steel, for releasably securing the scaffolding bar in the installed position on a fastener provided with at least one opening a framework element is welded by means of a plug-in by the at least one opening plug wedge, or one, each viewed 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 to Is welded to a scaffolding components, and wherein at one, in the installed position forming a bottom, side of the support profile is an elongated, rod-shaped, preferably substantially straight, U-reinforced steel sheet profile is fixed, away from the carrier profile, in the installed position below the Carrier profile, extending and extending in the direction of a second longitudinal axis in a second longitudinal direction, preferably in a straight line, parallel to the carrier profile or parallel to the first longitudinal axis while bridging the carrier profile longitudinal center along the carrier profile continuously over egg ne reinforcing profile length which corresponds to at least half of the carrier profile length of the carrier profile, and wherein the U-reinforcement profile, viewed in a perpendicular to the second longitudinal axis cross-section, substantially over its entire reinforcing profile length a U-shaped first U Profile section and is formed with a first base profile extending in the second longitudinal direction, from which two lateral first U-profile legs are folded or bent or bent over, which extend substantially perpendicularly from the first base profile. Profile away in a same direction and in a first base profile width corresponding transverse spacing substantially parallel to each other, in the installed position upwards, and have fastening ends that are welded to the underside of the carrier profile over the U-reinforcement profile is welded to the support profile, and wherein the U-reinforcement profile has a U-reinforcement profile width corresponding to the transverse spacing and a U-reinforcement profile height corresponding to a distance of the attachment ends from the first base profile is the U-gain profile width.

Such girder bars are known from practice and from the applicant's prospectus " Catalog and price list "for the" Layher Allround Scaffolding System ", edition 01.03.2007 , in the form of there shown on page 8 and as "O-bar, reinforced" and "U-bar, reinforced" scaffold bar known. The reinforcing profile of this bar has a V-shaped cross section and the inner cross section is triangular. The reinforcing profile is produced by folding or bending a substantially flat steel sheet around a single bending or bending axis. The "O-profile" and the "U-profile" as well as the respective reinforcing profile consist of a steel material with a yield strength of about 320 N / mm ² . Although these scaffold bars in practice have proven in many cases, it has been shown that these bars in certain applications, for example, larger spans, the existing requirements for higher flexural strength and load capacity are not enough. Therefore, the Applicant has developed and offered so-called "O-double bars" and "U-double bars", which are also shown in the above-mentioned product brochure on page 8. These "double bars" have also proven themselves in practice. They have a Obergurt-O or U-profile with two welded at the ends connecting heads and have a downwardly projecting lower flange profile in the form of a round tube. The lower flange profile is therefore also referred to as "bottom flange O-profile". The round tube is welded to the ends of its upwardly angled tube parts on the upper flange profile. The lower flange O-profile is also connected via a plurality of spaced apart in the longitudinal direction of the "double bolt" spaced and each one vertical distance mediating support plates connected to the upper flange profile by welding. The upper flange profile, the lower flange O-profile and the support plates also consist of a steel material having a yield strength of about 320 N / mm ² . Although such a "double bar" has a greater flexural strength or carrying capacity compared to the "O-bars" and "U-bars" mentioned, but a significantly greater overall height. This leads to the fact that in a proper installation of such a "double bolt" in a framework in which the connection heads of the "double bolt" horizontally adjacent substantially arranged at the same height perforated discs of two horizontally adjacent arranged or erected scaffolding posts in Height of the scaffold floors of a next floor is fixed, is reduced by the downwardly projecting lower flange O-profile, the passage height accordingly. This can lead to obstructions in the passage of people on or off the floor. walk the scaffolding floors of a lower floor. Apart from these disadvantages, such "double bars" are comparatively expensive. The document US 4,671,382 also discloses a scaffold bar having the features of the introductory part of claim 1.

Among other things, therefore, the applicant has advanced further developments, which in the German patent applications no. 10 2012 108 020 and no. 10 2013 102 492 are disclosed. These are "double U-girder bars", for which both the carrier profile and for the welded thereto reinforcement profile U-profiles are used. These U-profiles have, viewed in a direction perpendicular to their longitudinal axes cross-section, an identical U-profile design or an identical U-profile cross-section. In the case of the first-mentioned patent application, a conventional slotted connection head made of metal is welded directly to both longitudinal ends of the U-carrier profile, each of which can be fixed in a releasable manner by means of a wedge on a perforated disc of a vertical framework element, in particular on a scaffold post. In the case of the second-mentioned patent application in each case a conventional hook-shaped suspension claw is welded at both longitudinal ends of the U-beam profile in each case a common hook-shaped suspension claw, which is also called with Einhängekralle, by means of which this double U-bolt in a U-beam profile of a scaffold component or can be suspended or placed on a support edge of a support web of a scaffold component. Although these double U-bolts are relatively simple and inexpensive to produce and easy and safe to handle manually and have at a relatively low overall height a relatively high flexural strength or load capacity, however, for transport and storage of these double-U-bars a comparatively large load volume claimed.

It is therefore an object of the invention to provide a scaffold bar of the type mentioned, the still simpler and comparatively inexpensive manufacturability and easier and safer manual handling, at a still relatively low overall height, at least equal to or greater flexural strength Has or carrying capacity and the cheap ways for a space-saving transport or for offers a space-saving storage of several such scaffolding bars.

This object is achieved in a surprisingly simple manner by the features of claim 1, in particular by the fact that the U-reinforcement profile height is greater than the carrier profile height measured in the same direction as the U-reinforcement profile height and that the U Reinforcing profile width is smaller by more than twice the wall thickness of the carrier profile than the carrier profile width measured in a same direction as the U reinforcing profile width. As a result, these scaffold bars can have an at least equal or even greater moment of inertia and, accordingly, at least one equal or greater bending stiffness or carrying capacity than the above-mentioned double U-bolts. In addition, it can be achieved that a first invention Gerustriegel is inserted with its U-reinforcement profile between the U-profile legs of the U-beam profile of a second Gerüstriegels invention, wherein viewed in a perpendicular to the respective second longitudinal axis cross-section, the base -Profile of the U-reinforcing profile of the first framework crucible in an insertion distance to the ends of the U-profile legs of the U-beam profile of the second scaffold bar in one with the U-profile legs and the base profile of the U-beam profile of the second Gerüstriegels limited U-carrier profile interior can be arranged or arranged.

According to one embodiment it can be provided that the U-reinforcement profile height is greater than the U-reinforcement profile width by at least a factor of 1.3 or 1.5 or 1.6 or 1.7. In other words, the calculated ratio from U reinforcement profile height to U reinforcement profile width at least 1.3 or at least 1.5 or at least 1.6 or at least 1.7. Preferably, the factor or the ratio is greater than 1.7. Alternatively or additionally, it may be provided that the U-reinforcing profile width by at least or more than three times or at least or more than four times or at least or more by five times or by at least or more six times the wall thickness of Carrier profile is smaller than the carrier profile width measured in a same direction as the U-reinforcement profile width. Alternatively or additionally, it may be provided that the U-reinforcement profile width is at least 10 percent or at least 20 percent or at least 25 percent or at least 30 percent smaller than the carrier profile measured in the same direction as the U-reinforcement profile width -Width. By the above measures, the advantages mentioned above can be realized to a very special degree.

According to a preferred embodiment it can be provided that the first U-profile legs have in the region of their attachment ends first leg wall parts which are bent or bent off from the first U-profile legs in one direction to one another or inwards or bent and having at their the carrier profile associated ends the attachment ends. As a result, not only a greater stiffening and consequently a greater flexural strength or load capacity is achieved, but also a safe manual handling, because sharp edges can be avoided.

It is understood, however, that it may alternatively be provided that the first U-profile legs have in the region of their fastening ends first leg wall parts which are bent away from the first U-profile legs in a direction away from one another or to the outside or off or are bent over and at their ends associated with the carrier profile have the attachment ends.

According to an advantageous development, it can be provided that the first leg wall parts, viewed in a cross-section running perpendicular to the second longitudinal axis, are bent away from the first U-profile legs by an angle or are bent off or bent over. This allows a simple and inexpensive production.

In this case, according to a first alternative, it may be provided that the angle is an obtuse angle, which is therefore greater than 90 degrees and less than 180 degrees. Preferably, this angle can take a value between 95 degrees and 145 degrees. In particular, this angle can be about 120 degrees. As a result, a tangential abutment of the first leg wall parts on the underside of the carrier profile can be achieved, whereby the risk of a gap formation between the bottom of the carrier profile and the welded thereto first U-profile legs of the U-reinforcement profile can be minimized or even excluded. By these measures, favorable welding conditions and a correspondingly good weld seam quality can be achieved, so that these scaffolding bars can have a particularly high flexural rigidity or carrying capacity.

According to a second alternative, it can be provided that the angle is an acute angle, that is, less than 90 degrees and greater than zero degrees. Preferably, this angle can be between 20 degrees and 70 degrees. In particular, this angle can be about 45 degrees. As a result, the first leg wall parts can abut with their end faces or end edges on the underside of the carrier profile. Although this alternative embodiment has the advantage over the previously discussed embodiment that less material is needed, whereby on the one hand costs and other weight can be saved, whereby the latter results in easier manual handling. On the other hand, in this alternative embodiment, it may happen that the web edges extending along the carrier profile do not always run exactly straight. This can lead to a gap formation and accordingly to problems in robot welding. As a result, the weld quality can be impaired, with the consequence of correspondingly lower mechanical characteristics.

According to an embodiment variant, it may be provided that the carrier profile is a round tube with an outer diameter corresponding to the carrier profile width and the carrier profile height.

The support profile and / or the U reinforcement profile can preferably be formed and / or arranged symmetrically with respect to a longitudinal plane of symmetry contained in the first longitudinal axis and the second longitudinal axis in the case of a projecting girder. As a result, a particularly simple and cost-effective production is possible and it can be scaffold bars available that are independent of their installation position have an equal bending strength or load capacity, so that the worker does not have to pay attention to how he has to attach or hang the corresponding scaffold bars.

According to a particularly preferred embodiment variant, provision can be made for the carrier profile to be a U-carrier profile, which, viewed in a cross-section running perpendicular to the first longitudinal axis, has a U-shaped second U-shape substantially over the entire carrier profile length. Profile cross-section and in an opening direction facing away from the U-reinforcement profile, in the installed position upwards, is open, and which is designed with a extending in the first longitudinal direction second base profile, which, in a direction perpendicular to the viewed from the second base profile, two lateral second U-profile legs bent or bent or bent, which are substantially perpendicular to the second base profile away in a same direction and in a second base profile width corresponding transverse spacing substantially paral Lel one another, in the installed position upwards, extend and have support ends, and wherein the second U-profile legs in the region facing away from the second base profile, in the installed position upper, support ends the support edges to Forming laying and / or hanging of scaffold planks, wherein the second U-profile legs have a transverse inner spacing in the region of their support ends. It is therefore also a "double-U-bar", but with respect to the above-mentioned "double-U bars" earlier developments of the applicant the advantages of the invention can be realized to a particular extent.

It can be provided according to a preferred embodiment, that the support ends of the second U-profile legs are formed by folds or bends, wherein the second U-profile leg in each case preferably about 180 degrees inwardly into one of the second U Profile legs and the second base profile limited U-carrier profile interior um- or bent or bent second leg wall parts of leg ends, which, preferably parallel to each other, in the direction of the second base profile, in the installed position after below, and the viewed in a direction perpendicular to the first longitudinal axis extending cross-section, the transverse inner spacing to each other. As a result, reinforced bearing areas are created. These can be designed as double wall areas. These can be designed with immediately adjacent wall parts or can be designed with a small distance from each other having wall parts.

According to a very particularly preferred embodiment, it can be provided that the U-reinforcement profile width, viewed in a cross section running perpendicular to the second longitudinal axis, is slightly smaller than the transverse inner spacing between the second U-profile legs and the second leg Wall parts of the U-beam profile. As a result, the flexural strength or carrying capacity of such a double U-bolt can be maximized.

According to a development of a scaffold crucible according to the invention, in particular according to one of claims 9 to 11, It can be provided that the U-carrier profile and / or the U-reinforcement profile is formed and / or arranged symmetrically to a longitudinal plane of symmetry contained in the first longitudinal axis and the second longitudinal axis. As a result, a particularly simple and cost-effective production of such double-U-bolt is possible, which also have regardless of their mounting position equal flexural strength or load capacity, so that the worker does not have to pay attention to how he must strike the corresponding scaffolding bars or hook ,

The invention also relates to an arrangement of a first inventive Gerüstriegels, in particular according to one of claims 1 to 12, and a second Gerüstriegels invention, in particular double U-Gerüstriegels, in particular according to one of claims 9 to 12, wherein the U-reinforcement profile of the first Gerstriegel is inserted between the second U-profile legs or between the second leg wall parts of the U-carrier profile of the second Gerstriegel with little lateral play, preferably so that or wherein, viewed in a direction perpendicular to the respective second longitudinal axis cross-section, the first Base profile of the U-reinforcement profile of the first girder lock in a Einsteckweg to the ends of the second U-profile leg of the U-beam profile of the second girder lock in one with the second U-profile legs and the second base profile of the U Beam profile of the second girder beam limited U-beam profile interior ang is ordered. As a result, a stack arrangement of at least two scaffolding bars according to the invention can be achieved, in which the at least two scaffolding bars can be transported and / or stored "nested one inside the other". This reduces the loading volume of the bolt, so that more bars fit into a loading and / or transport device, for example in a pallet and / or in a truck. Also, this allows an increased number of scaffold bars by hand transport than before. In such an arrangement, as compared with a stacked arrangement in which a scaffold bar equipped with a prior art V-reinforcement profile is placed in a U-beam profile of another scaffold, the safety against lateral tilting during storage and / or or increased during transport of nested girder bars.

According to a particularly preferred embodiment of the arrangement can also be referred to as a double U-Gerustriegel first scaffold bar, in particular according to one of claims 9 to 12, with its U-reinforcement profile between the second U-profile legs or between the second leg wall parts the U-beam profile of the second scaffolding crucible, which can also be marked as a double U-scaffold, can be inserted with little lateral clearance.

According to a preferred embodiment of the arrangement can be provided that the inserted into the U-carrier profile interior of the U-beam profile of the second scaffold bar U-reinforcement profile of the first scaffold bar with its first base profile on the second base profile of the U-beam profile of second scaffold bar rests. In other words, after inserting the U reinforcement profile of the first girder tie into the U-girder profile interior of the U girder profile of the second girder tie, the first base profile of the U reinforcement profile of the first girder tie on the second base profile of the U-girder Carrier profiles of the second scaffolding crucible rest. This can be the safety be further increased against lateral tilting during storage and / or during transport of the scaffold bars.

The U-beam profile and / or the U-reinforcement profile can or can be produced by forming, in particular by bending or bending and / or folding or profiling a preferably substantially flat steel sheet, for example on a roller mill or by profiling be.

According to a very particularly preferred embodiment it can be provided that the carrier profile and / or the U-reinforcement profile consists of a steel sheet material having a yield strength of at least 450 N / mm ² to 470 N / mm ² or which is at least 460 N / mm ² . The carrier profile and / or the U-reinforcement profile preferably consist of the steel material S460 or the carrier profile and / or the U-carrier profile are made of the steel material S460. 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 connection head may preferably be designed with an upper head part and a lower head part, between which a slot open to the front for attaching the connection head to the provided with an opening, preferably with a plurality of openings fastener, such as mounting flange, preferably rosette, in particular perforated disc is formed can be. The connection head can have at least one wedge opening or at least two wedge openings for insertion or insertion of the connection wedge. If the connection head with a upper head part and with a lower head part and a slot or formed therebetween, both the upper head part and the lower head part can be provided with wedge openings for the insertion of the connecting 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, with the side surfaces facing forward toward a center, preferably at a stem and / or disk center a perforated disc attached to a handle, and / or in the direction of a central axis of the framework element, preferably a scaffolding tube, in particular in the direction of a shaft axis of a scaffold post, can be designed to taper. 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 can be provided with a transversal, preferably approximately perpendicular, to the first longitudinal axis of the first U-profile and in the installed position downwards, in particular to below the first U-profile surface of the first U-profile extending Einstecknase. 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 on the at least one Opening having fastening element be releasably fastened or fastened that its insertion nose is inserted through the opening of the fastener in the vertical direction or is. This, in contrast to the above-mentioned embodiment of a scaffold crucible in which the respective connection head has a forwardly open and horizontal slot in the installed position, which allows or requires a horizontal attachment to the fastener and is thus mounted horizontally on the perforated disc or becomes.

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. Not claimed is an arrangement and / or a scaffolding frame and / or a scaffold, with at least two vertical scaffolding tubes or scaffolding posts, to each of which at least one fastener provided with at least one opening, in particular mounting flange, preferably rosette, in particular perforated disc is attached to in which a scaffold bar according to the invention, in particular according to one of claims 1 to 12, is fastened such that each connection head is releasably fastened or wedged by means of the respective connecting wedge inserted through the respective opening of the respective fastening element. Not claimed is further an arrangement and / or a scaffolding frame and / or a scaffold, with at least two, preferably at least four, vertical scaffolding tubes or scaffolding posts on which, or attached to each, a carrier profile, in particular U-carrier profile, a scaffold component is, on which a scaffolding bar according to the invention, in particular according to one of claims 1 to 12, by means of at least one Einhängekralle or suspension claw, preferably releasably, placed and / or mounted.

It is understood that the above features and measures within the scope of practicability of the invention as defined by the appended claims, can be combined as desired.

Further advantages, features and aspects of the invention can be taken from the following description part, in which preferred embodiments of the invention are described with reference to FIGS.

Fig. 1

eine dreidimensionale Darstellung eines in einer Einbaustellung an den Lochscheiben von zwei Gerüststielen montierten Gerüstriegels gemäß einem ersten Ausführungsbeispiel.

Fig. 2

eine Seitenansicht des Gerüstriegels, wobei zur Veranschaulichung dessen Einbaustellung und dessen Montage an den beiden Gerüststielen letztere strichpunktiert dargestellt sind;

Fig. 3

eine Draufsicht des Gerüstriegels;

Fig. 4

eine vergrößerte Seitenansicht des Gerüstriegels im Bereich des in Figur 2 links gezeigten Endes mit Teilschnitt im Anschlussbereich eines Anschlusskopfes;

Fig. 5

eine vergrößerte Draufsicht des Gerüstriegels im Bereich seines in Figur 2 rechts gezeigten Endes;

Fig. 6

eine Seitenansicht eines Gerüstriegels gemäß einem zweiten Ausführungsbeispiel;

Fig. 7

eine Draufsicht des Gerüstriegels gemäß Figur 6;

Fig. 8

einen vergrößerten Querschnitt des jeweils als Doppel-U-Riegel gestalteten Gerüstriegels gemäß dem ersten und zweiten Ausführungsbeispiel, entlang der Schnittlinien 8-8 in Figur 2 bzw. entlang der Schnittlinien 8-8 in Figur 6;

Fig. 9

einen Querschnitt eines Gerüstriegels gemäß einem dritten Ausführungsbeispiel;

Fig. 10

einen Querschnitt eines Gerüstriegels gemäß einem vierten Ausführungsbeispiel;

Fig. 11

einen Querschnitt eines Gerüstriegels gemäß einem fünften Ausführungsbeispiel;

Fig. 12.1 bis 12.3

Ansichten einer ersten Ausführungsvariante einer Stapel-Anordnung von zwei ineinander geschachtelten Gerüstriegeln gemäß dem ersten Ausführungsbeispiel, wobei

Fig. 12.1

eine Seitenansicht,

Fig. 12.2

eine Draufsicht und

Fig. 12.3

einen Querschnitt entlang der Schnittlinien 12.3, 12.3 in Figur 12.1 zeigen;

Fig. 13.1 bis 13.3

Ansichten einer zweiten Ausführungsvariante einer Stapel-Anordnung von zwei ineinander geschachtelten Gerüstriegeln gemäß dem zweiten Ausführungsbeispiel, wobei

Fig. 13.1

eine Seitenansicht,

Fig. 13.2

eine Draufsicht und

Fig. 13.3

einen Querschnitt entlang der Schnittlinien 13.3, 13.3 in Figur 13.1 zeigen;

Fig. 14.1 bis 14.3

Ansichten einer dritten Ausführungsvariante einer Stapel-Anordnung von zwei ineinander geschachtelten Gerüstriegeln gemäß einem sechsten Ausführungsbeispiel, die ähnlich gestaltet sind, wie in dem zweiten Ausführungsbeispiel, wobei

Fig. 14.1

eine Seitenansicht,

Fig. 14.2

eine Draufsicht und

Fig. 14.3

einen Querschnitt entlang der Schnittlinien 14.3, 14.3 in Figur 14.1 zeigen.

Show it:

Fig. 1

a three-dimensional representation of a mounted in an installed position on the perforated discs of two scaffolding staves scaffold bar according to a first embodiment.

Fig. 2

a side view of the scaffold crawler, wherein the latter are shown in phantom to illustrate its installation position and its mounting on the two scaffold posts;

Fig. 3

a plan view of the Gerstriegel;

Fig. 4

an enlarged side view of the Gerstriegel in the area of FIG. 2 left end shown with partial section in the connection area of a connection head;

Fig. 5

an enlarged plan view of the scaffold bars in the area of his in FIG. 2 right end;

Fig. 6

a side view of a framework crucible according to a second embodiment;

Fig. 7

a plan view of the scaffold bar according to FIG. 6 ;

Fig. 8

an enlarged cross section of each designed as a double U-bar scaffold bar according to the first and second embodiments, along the section lines 8-8 in FIG. 2 or along the section lines 8-8 in FIG. 6 ;

Fig. 9

a cross section of a scaffolding crucible according to a third embodiment;

Fig. 10

a cross section of a framework crucible according to a fourth embodiment;

Fig. 11

a cross section of a framework crucible according to a fifth embodiment;

Fig. 12.1 to 12.3

Views of a first embodiment of a stack arrangement of two in one another nested girder bars according to the first embodiment, wherein

Fig. 12.1

a side view,

Fig. 12.2

a top view and

Fig. 12.3

a cross section along the section lines 12.3, 12.3 in Figure 12.1 demonstrate;

Fig. 13.1 to 13.3

Views of a second embodiment of a stack arrangement of two nested Gerüstriegeln according to the second embodiment, wherein

Fig. 13.1

a side view,

Fig. 13.2

a top view and

Fig. 13.3

a cross section along the section lines 13.3, 13.3 in FIG. 13.1 demonstrate;

Fig. 14.1 to 14.3

Views of a third embodiment of a stack arrangement of two nested Gerüstriegeln according to a sixth embodiment, which are designed similar, as in the second embodiment, wherein

Fig. 14.1

a side view,

Fig. 14.2

a top view and

Fig. 14.3

a cross section along the section lines 14.3, 14.3 in FIG. 14.1 demonstrate.

Hereinafter, features will be discussed that are common to the scaffold bars 20.1 to 20.6 shown in all the figures: They are each scaffolding bars 20.1 to 20.6 made of, preferably galvanized, metal. The scaffold bars 20.1 to 20.6 each comprise a carrier profile 21.1, 21.2 made of steel or sheet steel and a welded thereto U-reinforcement profile 22.1, 22.2 made of sheet steel. The elongated, rod-shaped, straight carrier profile 21.1, 21.2 extends in the direction of a first longitudinal axis 23 in a first longitudinal direction 24. The carrier profile 21.1, 21.2, viewed in the first longitudinal direction 24, has a carrier profile length 25 and a carrier profile longitudinal center 26. The carrier profile 21.1, 21.2 has, viewed in a direction perpendicular to the longitudinal direction 24 extending cross section, a carrier profile width 27.1, 27.2, a perpendicular measured carrier profile height 40.1, 40.2 and a carrier profile wall thickness 28.1, 28.2. The carrier profile 21.1, 21.2 has at least one, viewed in a mounting position 29 upper, support edge 30.1 or has, in an installed position considered upper, support edges 30.2.1, 30.2.2, for laying and / or hanging a scaffold decking 31 or more scaffold planks 31st on. The carrier profile 21.1, 21.2 has two carrier profile ends 32.1, 32.2 extending away from each other in opposite directions in the first longitudinal direction 24, on each of which a fastening means 33; 33.1, 33.2 made of metal for attaching the scaffold bars 20.1 to 20.6 are attached to other scaffolding components directly or indirectly by welding.

The elongate, rod-shaped, straight, U-reinforcement profile 22.1, 22.2 is fastened to a side of the carrier profile 21.1, 21.2 forming a lower side 34 in the installed position 29 by welding. The U-reinforcement profile 22.1, 22.2 extends in the installed position 29 as viewed below the carrier profile 21.1, 21.2. It is arranged substantially below the carrier profile 21.1, 21.2. The U-reinforcement profile 22.1, 22.2 extends in the direction of a second longitudinal axis 43 in a second longitudinal direction 44 parallel to the carrier profile 21.1, 22.2 or parallel to the first longitudinal axis 23 while bridging the carrier profile longitudinal center 26 along the carrier profile 21.1, 21.2 continuously over a reinforcing profile length 45, which corresponds to at least half of the carrier profile length 25 of the carrier profile 21.1, 21.2. The carrier profile length 25 may be for example 2924 mm. The reinforcing profile length 45 may be for example 2424 mm. It is understood, however, that other lengths and / or combinations of lengths are possible. In the exemplary embodiments shown, the first longitudinal axis 23 of the carrier profile 21.1, 21.2 and the second longitudinal axis 43 of the U-reinforcement profile 22.1, 22.2 are parallel. Both the first longitudinal axis 23 of the carrier profile 21.1, 21.2 and the second longitudinal axis 43 of the U-reinforcement profile 22.1, 22.2 are arranged in an imaginary transverse center longitudinal plane 36. In the installed position 29, the transverse center longitudinal plane 36 runs vertically. The profile ends 37.1, 37.2 of the U reinforcement profile 22.1, 22.2 preferably have a longitudinal spacing 38.1, 38.2 relative to the carrier profile ends 32.1, 32.2 of the carrier profile 21.1, 21.2. This may preferably be about 100 mm or about 250 mm.

The U-reinforcement profile 22.1, 22.2 has, viewed in a direction perpendicular to the second longitudinal axis 43 extending cross-section, substantially over its entire reinforcing profile length 45 has a substantially U-shaped U-profile cross-section 39.1, 39.2. The U-reinforcement profile 22.1, 22.2 is designed with a flat, plate-shaped base profile 46 extending in the second longitudinal direction 44. The base profile 46 has, viewed in a direction perpendicular to the second longitudinal axis 43 extending cross section, a base profile width 47. Of the base profile 46, two lateral U-profile legs 48.1.1, 48.1.2; 48.2.1, 48.2.2 folded or bent or bent over. The U-profile legs 48.1.1, 48.1.2; 48.2.1, 48.2.2 extend substantially perpendicularly away from the base profile 46 in a same direction and in a transverse distance corresponding to the base profile width 47 substantially parallel to each other, viewed in the installed position 29 upward. The U-profile legs 48.1.1, 48.1.2; 48.2.1, 48.2.2 have attachment ends 49.1.1, 49.1.2 assigned to the carrier profile 21.1, 21.2; 49.2.1, 49.2.2, which are welded to the underside 34 of the carrier profile 21.1, 21.2 or via which the U-reinforcement profile 22.1, 22.2 is welded to the carrier profile 21.1 21.2. The U-reinforcement profile 22.1, 22.2 has a U-reinforcement profile width corresponding to the transverse spacing or the base profile width 47 and a spacing of the fastening ends 49.1.1, 49.1.2; 49.2.1, 49.2.2 of the U-profile legs 48.1.1, 48.1.2; 48.2.1, 48.2.2 of the U-reinforcement profile 22.1, 22.2 of its base profile 46 corresponding U-reinforcement profile height 50.1, 50.2. The U-reinforcement profile height 50.1, 50.2 is greater than the U-reinforcement profile width 47. Accordingly, the U-reinforcement profile 22.1, 22.2, in a direction perpendicular to its second Viewed along the longitudinal axis 43 extending cross-section, a substantially rectangular cross-section 51.1, 51.2. The U-reinforcement profile 22.1, 22.2 is, viewed in the installed position 29, arranged edgewise. Preferably, the respective U-reinforcement profile 22.1, 22.2 has a wall thickness 52 of about 2.5 mm.

According to the invention, it is provided that the U-reinforcement profile height 50.1, 50.2 is greater than the carrier profile height 40.1, 40.2 measured in the same direction as the U-reinforcement profile height 50.1, 50.2. In addition, the U-reinforcement profile width 47 is smaller by more than twice the wall thickness 28.1, 28.2 of the carrier profile 21.1, 21.2 than the carrier profile width 27.1, 27.2 measured in a same direction as the U-reinforcement profile width 47. In the embodiments shown, the U-reinforcement profile height 50.1, 50.2 is greater than the reinforcement profile width 47 by more than a factor of 1.7. Preferably, the reinforcement profile height may be 59 mm and / or the reinforcement profile width may be 34 mm ,

The U-profile legs 48.1.1, 48.1.2; 48.2.1, 48.2.2 of the respective U-reinforcement profile 22.1, 22.2 have in the region of their attachment ends 49.1.1, 49.1.2; 49.2.1, 49.2.2 Thigh Wall Parts 53.1.1, 53.1.2; 53.2.1, 53.2.2, which of the U-profile legs 48.1.1, 48.1.2; 48.2.1, 48.2.2 in one direction to each other or bent inward or bent or bent over. These leg wall parts 53.1.1, 53.1.2; 53.2.1, 53.2.2 have at their the carrier profile 21.1, 21.2 associated ends the attachment ends 49.1.1, 49.1.2; 49.2.1, 49.2.2, via which the U-reinforcement profile 22.1, 22.2 is welded to the carrier profile 21.1, 21.2. Here are the leg wall parts 53.1.1, 53.1.2; 53.2.1, 53.2.2, viewed in a direction perpendicular to the second longitudinal axis 43 extending cross-section of the U-profile legs 48.1.1, 48.1.2; 48.2.1, 48.2.2 each by a certain angle 54.1.1, 54.1.2; 54.2.1, 54.2.2 folded or bent or bent over. In all scaffold bars 20.1 to 20.6 shown in the figures, the carrier profile 21.1, 21.2 and the U-reinforcement profile 22.1, 22.2 are each symmetrical to a first longitudinal axis 23 of the carrier profile 21.1, 21.2 and the second longitudinal axis 43 of the U-reinforcement profile 22.1, 22.2 Longitudinal plane of symmetry 36 formed. Furthermore, in all the exemplary embodiments shown, the carrier profile 21.1, 21.2 and the U-reinforcement profile 22.1, 22.2 are arranged symmetrically to the longitudinal symmetry plane 36 contained in the first longitudinal axis 23 of the carrier profile 21.1, 21.2 and the second longitudinal axis 43. of the U-reinforcement profile 22.1, 22.2 , The scaffold bars 20.1 to 20.6 may also be referred to as scaffolding carrier or may be used for supporting scaffold planks 31, as for example with reference to FIG FIG. 1 shown using the example of the first embodiment of a scaffolding crucible 20.1 according to the invention.

• Zum Befestigen des jeweiligen Gerüstriegels 20.1 bis 20.6 an weiteren Gerüstbauteilen, insbesondere Gerüststielen 41 sind insbesondere die folgenden Befestigungsmittel 33.1, 33.2 vorgesehen:
  • Wie beispielsweise in den Figuren 1 bis 5 und 8 sowie 12.1 bis 12.3 gezeigt, kann gemäß einem ersten Ausführungsbeispiel als Befestigungsmittel jeweils ein Anschlusskopf 33.1 aus Metall zum lösbaren Befestigen des Gerüstriegels 20.1 in der Einbaustellung 29 an einem mit wenigstens einer Durchbrechung 56 versehenen Befestigungselement, vorzugsweise einer Lochscheibe 55, eines Gerüstbauteil, vorzugsweise eines Gerüststiels 41, mittels eines durch die wenigstens eine Durchbrechung 56 steckbaren Anschlusskeils 57 angeschweißt sein. Eine Anordnung eines auf diese Art und Weise an zwei Gerüststielen 41, 41 lösbar festgekeilten Gerüstriegels 20.1 gemäß dem ersten Ausführungsbeispiel ist insbesondere in Figur 1 gezeigt.

The six exemplary embodiments of scaffold bars 20.1 to 20.6 according to the invention shown in the figures have, in addition to the above features, further features which are described below:

• For fastening the respective scaffold bars 20.1 to 20.6 to further scaffolding components, in particular scaffolding posts 41, the following fastening means 33.1, 33.2 are provided in particular:
  • Such as in the FIGS. 1 to 5 and 8th such as 12.1 to 12.3 According to a first exemplary embodiment, a connecting head 33.1 made of metal for releasably securing the scaffolding bar 20.1 in the installed position 29 to a fastening element provided with at least one opening 56, preferably a perforated plate 55, a scaffolding component, preferably a scaffolding post 41, can be used be welded by the at least one opening 56 pluggable connection wedge 57. An arrangement of in this way on two scaffold posts 41, 41 releasably festgekeilten Gerüstriegels 20.1 according to the first embodiment is particularly in FIG. 1 shown.

Such as in the FIGS. 6 to 8 and 13.1 to 13.3 and 14.1 to 14.2 shown, according to a second and a sixth embodiment of a scaffold cradle 20.2, 20.6 as fastening means each have a hook-shaped Einhängekralle or Einhängeklaue 33.2 made of metal, especially steel, preferably galvanized steel, for releasable hang up and / or hooking the respective scaffold curb 20.2, 20.6 be welded in its installed position 29 and / or to scaffolding components. The suspension claws or suspension claws 33.2 each have attachment holes delimiting suspension hammers which, viewed in the respective installed position 29, are open at the bottom.

According to the in the FIGS. 1 to 9 As well as 12.1 to 12.3, 13.1 to 13.3 and 14.1 to 14.4 shown embodiments, the leg wall parts 53.1.1, 53.1.2 of the respective U-reinforcement profile 22.1, viewed in a direction perpendicular to the second longitudinal axis 43 extending cross-section of The U-profile legs 48.1.1, 48.1.2 each bent at an obtuse angle 54.1.1, 54.1.2 or off or bent. Preferably, this angle is 54.1.1, 54.1.2 each about 120 degrees. In these embodiments, each of the two leg wall parts 53.1.1, 53.1.2 extend inwardly into one of the two lateral U-profile legs 48.1.1, 48.1.2 and from the base profile 46 of the respective U-reinforcement profile 22.1 limited interior 58.1 of the U-reinforcement profile 22.1.

According to the in the FIGS. 10 and 11 shown further embodiments, the leg wall parts are 53.2.1, 53.2.2 of the respective U-reinforcement profile 22.2, viewed in a direction perpendicular to the second longitudinal axis 43 extending cross-section of the U-profile legs 48.2.1, 48.2.2 each to a point Angles 54.2.1, 54.2.2 bent or bent off or bent over. This angle is preferably 54.2.1, 54.2.2 each about 45 degrees.

In the in the FIGS. 1 to 8 . 11 and 12.1 to 14.3 shown embodiments of scaffolding bars according to the invention 20.1, 20.2, 20.5, 20.6, the carrier profile is a U-carrier profile 21.1. The U-beam profile 21.1, viewed in a direction perpendicular to its longitudinal axis 23, ie to the first longitudinal axis 23, extending cross section, substantially over the entire carrier profile length 25 has a substantially U-shaped U-profile cross-section 59. The U-beam profile 21.1 is open in a direction away from the U-reinforcement profile 22.1, 22.2 opening direction, in the installed position 29 viewed. The U-carrier profile 21.1 is designed with a base profile 60 extending in the first longitudinal direction 24. The base profile 60 is substantially flat and plate-shaped designed. The base profile 60 has, viewed in a direction perpendicular to the first longitudinal axis 23 cross-section, a base profile width 61. Preferably, the base profile width 61 can be 49 mm. Of the base profile 60 are two lateral U-profile legs 62.1, 62.2 bent or bent or bent. The U-profile legs 62.1, 62.2 extend substantially perpendicularly away from the base profile 60 in a same direction and in a transverse spacing corresponding to the base profile width 61 substantially parallel to one another, viewed upwardly in the installed position 29. The U-beam profile 21.1 has a, preferably 53 mm amount, U-beam profile height 40.2. The U-beam profile 21.1 has a, preferably 2.5 mm amount, wall thickness 28.1. Preferably, the wall thickness 28.1 of the U-beam profile 21.1 and the wall thickness 52 of the U-reinforcement profile 22.1, 22.2 are the same size. As a result, manufacturing and cost advantages can be achieved. Because then from a sheet steel blank with a certain wall thickness, preferably of 2.5 mm, both the U-beam profile 21.1 and the U-reinforcement profile 22.1, 22.2 by forming, in particular on a roller mill, are produced. The U-profile legs 62.1, 62.2 of the U-beam profile 21.1 form in the region of their base profile 60 facing away, viewed in the installed position 29 upper, support ends 64.1, 64.2 support edges 30.1, 30.2.1, 30.2.2 for laying and / or hanging of scaffolding components, in particular of scaffold planks 31. The U-profile legs 62.1, 62.2 have in the region of their support ends 64.1, 64.2 a transverse inner spacing 66 to each other.

The support ends 64.1, 64.2 of the U-profile legs 62.1, 62.2 are formed by folds or Um or bends. The U-profile legs 62.1, 62.2 each have about 180 degrees inward in a U-shaped carrier profile-interior 67 delimited by the U-profile legs 62.1, 62.2 and the base profile 60 or bent or bent leg Wall parts 68.1, 68.2 of leg ends on. These leg wall parts 68.1, 68.2 extend in the direction of the base profile 60 of the U-carrier profile 21.1, viewed in the installed position 29 down. The said bent or bent or bent or bent leg wall parts 68.1, 68.2 have, viewed in a direction perpendicular to the first longitudinal axis 23 extending cross-section, the said transverse inner spacing 66 to each other. The transverse inner distance 66 may preferably be 36 mm. The transverse inner spacing 66 between the U-profile legs 62.1, 62.2 or between the said leg wall parts 68.1, 68.2 of the U-carrier profile 21.1 is viewed in a cross section perpendicular to the first or second longitudinal axis 23, 43, slightly larger than the U-reinforcement profile width 47 of the U-reinforcement profile 221. 22.2. The U-reinforcement profile width 47 may preferably be 34 mm. In other words, the U-reinforcing profile width 47, viewed in a direction perpendicular to the first and second longitudinal axis 23, 43 cross-section, slightly smaller than the transverse inner spacing 66 between the U-profile legs 62.1, 62.2 and whose leg wall parts 68.1, 68.2 of the U-beam profile 21.1. As a result, this scaffolding bar 20.1, 20.2, 20.5, 20.6 can be inserted with its U-reinforcement profile 21.1, 21.2 into the U-carrier profile 21.1 of a second scaffolding bar 20.1, 20.2, which is identical or identically designed, at least with regard to its carrier profile the embodiments shown, in a plug-in direction perpendicular to the base profile 60 of the U-beam profile second Gerustriegels 20.1, 20.2 runs. In this way one can get to variants of arrangements according to the invention in the form of stack assemblies 70.1, 70.2, 70.3, which in the FIGS. 12.1 to 12.3 . 13.1 to 13.3 and 14.1 to 14.3 are shown.

In the in the FIGS. 1 to 8 and 12.1 to 12.3 shown first embodiment of a scaffolding crucible 20.1 according to the invention and also in the in the FIGS. 6 to 8 and 13.1 to 13.3 shown second embodiment of a scaffolding crucible 20.2 according to the invention and in the in FIG. 11 in a cross section shown fifth embodiment of a scaffolding crucible 20.5 according to the invention and also in the in the FIGS. 14.1 to 14.3 shown sixth embodiment of a scaffolding crucible 20.6 according to the invention, it is in each case a double U-Gerustriegel. This is in each case formed from a U-carrier profile 21.1 and a U-reinforcement profile 22.1, 22.2 welded thereto. The in the FIGS. 1 to 8 and 12.1 to 12.3 shown scaffold bar 20.1 according to the preferred first embodiment has a, preferably 112 mm total amount, 71 total.

According to the in the Figures 9 and 10 shown third and fourth embodiment of a framework crucible 20.3, 20.4 according to the invention may be in the carrier profile to a round tube 21.2 with one of the carrier profile width 27.2 and the carrier profile height 40.2 corresponding outer diameter 42. The outer diameter 42 may preferably be 48.3 mm. The wall thickness 28.2 of the round tube 21.2 may preferably be 2.7 mm. However, it can also be a another wall thickness, for example of 3.2 mm, exhibiting round tube be used.

In the in the FIGS. 6 to 8 and 13.1 to 13.3 shown second embodiment of a scaffold crucible 20.2 according to the invention, which is designed in each case with a U-beam profile 21.1 and a welded thereto U-reinforcement profile 22.1, the in FIG. 8 is shown, is at the facing away from each other carrier profile ends 32.1, 32.2 of the U-beam profile 21.1, each one perpendicular to the first longitudinal axis 23 of the support section 21.1 extending, also denominated as stiffening and support body stiffening and support plate 72.1, 72.2 welded. At their mutually facing away faces are also marked as Einhängekrallen Einhängeklauen 33.2 firmly welded. Furthermore, this scaffold 20.2 has at least one, preferably two, also designated as a sword or designated Aushebesicherungs fixing body 73.1, 73.2. This may or may be used to fix a scaffold floor lifting-out device, not shown in the figures, against lateral tilting. In the said and shown second exemplary embodiment of a scaffolding crucible 20.2 according to the invention, the latter comprises two identical lifting-out fixing bodies 73.1, 73.1, each of which is welded to a stiffening support plate 72.1, 72.2 of the stiffening support plates. However, it is understood that even a single such or similar Aushebesicherungs-fixing can be provided.

In the Figures 12.1 to 14.3 are three variants of each designated as an arrangement stacking arrangements 70.1, 70.2, 70.3 shown, in which in each case two identical scaffold bars 20.1, 20.1; 20.2, 20.2; 20.6, 20.6 are arranged nested. Each of these arrangements 70.1, 70.2, 70.3 comprises a first scaffold bar 20.1, 20.2, 20.6 according to the invention and a second scaffold bar 20.1, 20.2, 20.6 according to the invention, each with a U-beam profile 21.1 and with a U-reinforcement profile 22.1. In this case, the U-reinforcement profile 22.1 of the first crossbar 20.1, 20.2, 20.6 shown in the figures in each case between the U-profile legs 62.1, 62.2 of the U-carrier profile 22.1 of the second scaffolding bar 20.1, 20.2, 20.6 respectively shown below is low inserted laterally. This is such that, viewed in a cross section running perpendicular to the respective second longitudinal axis 43, the base profile 46 of the U reinforcement profile 22.1 of the upper or first scaffold beam 20.1, 20.2, 20.6 at a certain insertion distance 74.1, 74.2, 74.3 to the ends of the U-profile legs 61.1, 62.2 of the U-beam profile 21.1 of the lower or second Gerstriegel 20.1, 20.2, 20.6 in one with the U-profile legs 62.1, 62.2 and the base profile 60 of the U-beam profile 21.1 of the lower and second scaffold bars 20.1, 20.2, 20.6 limited U-carrier profile interior 67 is arranged.

The in the FIGS. 12.1 to 12.3 shown first embodiment of a stacking arrangement 70.1 comprises two identical scaffold bars 20.1, 20.1, which are arranged nested one inside the other. Each of these girder bars is a girder 20.1 according to the particular in the FIGS. 2 to 6 and 8th shown first embodiment. How out Figure 12.1 As can be seen, the two connecting heads 33.1, 33.1 of the first scaffold bar 20.1 shown above are located on the two connecting heads 33.1, 33.1 of the second scaffolding bar 20.1 shown below. The insertion distance 74.1 is preferably about 40 mm to 41 mm. Between the base profile 46 of the U-reinforcement profile 22.1 of the inserted first girder 20.1 and the base profile 60 of the U-beam profile 21.1 of the second girder 20.1, a gap 75.1 is formed. This gap 75.1 is for example about 10 mm. This first stack arrangement 70.1 has a stack height 76.1, preferably approximately 184 mm.

The in the FIGS. 13.1 to 13.3 shown second embodiment of a stacking arrangement 70.2 also includes two identical scaffold bars 20.2, 20.2, which are arranged nested one inside the other. Each of these girder bars is a girder 20.2 according to the particular in the FIGS. 6 to 8 shown second embodiment. How out FIG. 13.1 it can be seen here is the first scaffold bar 20.2 shown there above with the base profile 60 of its U-beam profile 21.1 on or on the free ends of the Aushebesicherungs-Fixierkörper 73.1, 73.2, also referred to as a sword on or on. The insertion distance 74.2 is preferably about 21 mm. Between the base profile 46 of the U-reinforcement profile 22.1 of the inserted, upper, first Gerstriegel 20.2 and the base profile 60 of the U-beam profile 21.1 of the lower and second Gerstriegel 20.2 a gap 75.2 is formed. This gap 75.2 is for example about 29.5 mm. This second stack arrangement 70.2 has a stack height 76.2, preferably approximately 212 mm.

The in the FIGS. 14.1 to 14.3 shown third embodiment of a stacking arrangement 70.3 also includes two identical scaffold bars 20.6, 20.6, which are arranged nested. Each of these scaffold bars 20.6 according to the sixth embodiment is the same design as that in the FIGS. 6 to 8 shown scaffolding bar 20.2 according to the second embodiment, with the exception that in the sixth embodiment variant shown here in each case the markable or designated as a sword Aushebesicherungs-fixing are omitted. As a result, in this third embodiment variant of a stack arrangement 70.3, the U reinforcement profile 22.1 of the upper or first scaffolding lock 20.6 inserted into the U support profile interior 67 of the U support profile 21.1 of the lower or second scaffold lock 20.6 has its base Profile 46 abuts or rests on the base profile 60 of the U-carrier profile 21.1 of the lower or second scaffolding crossbar 20.6. In this case, the insertion distance 74.3 of the base profile 46 of the U-reinforcement profile 22.1 of the inserted upper or first scaffolding beam 20.6 to the support ends 64.1, 64.2 of the U-profile legs 62.1, 62.2 of the U-beam profile 21.1 of lower or second Gerstriegel 20.6 maximizes. Preferably, the insertion distance 74.3 is about 50 to 51 mm. This third stack arrangement 70.3 has a stack height 76.3, preferably approximately 174 mm. LIST OF REFERENCE NUMBERS 20.1 scaffolding bars 30.2.1 (upper) support edge 20.2 scaffolding bars 20.3 scaffolding bars 30.2.2 (upper) support edge 20.4 scaffolding bars 20.5 scaffolding bars 31 scaffolding platform 20.6 scaffolding bars 32.1 Carrier profile end 21.1 Carrier profile / U-beam profile 32.2 Carrier profile end 33.1 connection head 21.2 Carrier profile / round tube 33.2 Suspension claw / hanging claw 22.1 U-gain profile 34 Side / bottom 36 Cross mid-longitudinal plane / longitudinal plane of symmetry 22.2 U-gain profile 23 (first) longitudinal axis 37.1 Profile-end 24 (first) longitudinal direction 37.2 Profile-end 38.1 longitudinal distance 25 Support profile Length 38.2 longitudinal distance 26 Carrier profile longitudinal center 39.1 U-shaped cross-section 27.1 Carrier profile width 39.2 U-shaped cross-section 27.2 Carrier profile width 28.1 (Carrier profile) wall thickness 40.1 Support profile height 40.1 Support profile height 28.2 (Carrier profile) wall thickness 41 Scaffolding / Scaffolding / 29 installation position scaffolding post 30.1 (upper) support edge 42 outer diameter 43 (second) longitudinal axis 44 (second) longitudinal direction 53.2.1 Thigh wall part 53.2.2 Thigh wall part 45 U-gain profile length 54.1.1 angle 54.1.2 angle 46 Base profile 54.2.1 angle 47 (first) base profile width / transverse distance / U reinforcement profile width 54.2.2 angle 55 Fastener / perforated disc 56 perforation 57 connecting wedge 48.1.1 (first) U-profile leg 58.1 U-gain profile interior 48.1.2 (first) U-profile leg 58.2 U-gain profile interior 48.2.1 (first) U-profile leg 59 (second) U-profile cross-section 48.2.2 (first) U-profile leg 60 Base profile 61 (second) basic profile width 49.1.1 Mounting end 49.1.2 Mounting end 62.1 (second) U-profile leg 49.2.1 Mounting end 49.2.2 Mounting end 62.2 (second) U-profile leg 50.1 U-gain profile height 64.1 Pad end 50.1 U-gain profile height 64.2 Pad end 66 Cross-padding 51.1 (first) U-profile cross section 67 U-profile interior 68.1 Thigh wall part 51.2 (first) U-profile cross section 68.2 Thigh wall part 70.1 (Staple) arrangement 52 wall thickness 70.2 (Staple) arrangement 53.1.1 Thigh wall part 70.3 (Staple) arrangement 53.1.2 Thigh wall part 71 total height 72.1 Stiffening and support plate 72.2 Stiffening and support plate 73.1 Aushebesicherungs-fixing body 73.2 Aushebesicherungs-fixing body 74.1 Mortise distance 74.2 Mortise distance 74.3 Mortise distance 75.1 gap 75.2 gap 76.1 Pile Height 76.2 Pile Height 76.3 Pile Height

Claims (14)

1. Scaffolding bar of metal with an elongate rod-shaped girder profile member (21.1, 21.2) of steel, which extends in the direction of a first longitudinal axis (23) in a first longitudinal direction (24) and which as considered in the first longitudinal direction (24) has a girder profile member length (25) and a girder profile member longitudinal centre (26) and as considered in a cross-section extending perpendicularly to the longitudinal direction (24) has a girder profile member width (27.1, 27.2), a girder profile member height (40.1, 40.2) and a girder profile member wall thickness (28.1. 28.2), the member having a support edge (30.1), which is upper as considered in an installed setting (29), or support edges (30.2.1, 30.2.2), which are upper as considered in the installed setting, for support and/or suspension of a scaffolding covering (31) or a plurality of scaffolding coverings (31), wherein the girder profile member (21.1, 21.2) has two girder profile member ends (32.1, 32.2), which extend away from one another in opposite directions in the first longitudinal direction (24) and to each of which is welded either a respective connecting head (33.1) of metal for detachable fastening of the scaffolding bar (20.1) in the installed setting (29) to a fastening element (55), which is provided with at least one passage (56), of a scaffolding element (41) by means of a connecting wedge (57) insertable through the passage (56) or a respective hook-shaped suspension claw or suspension catch (33.2) of metal, which is downwardly open as respectively considered in the installed setting (29), for detachable support and/or suspension of the scaffolding bar (20.2, 20.6) in the installed setting (29) on and/or at scaffolding components, and wherein attached to a side, which forms an underside (34) in the installed setting (29), of the girder profile member (21.1, 21.2) is an elongate rod-shaped U reinforcing profile member (22.1, 22.2) of sheet steel, which extends away from the girder profile member (21.1, 21.2) to underneath the girder profile member (21.1, 21.2) in the installed setting (29) and extends in the direction of a second longitudinal axis (43) in a second longitudinal direction (44) parallel to the girder profile member (21.1, 21.2) or parallel to the first longitudinal axis (23) thereof - with bridging-over of the girder profile member longitudinal centre (26) - along the girder profile member (21.1, 21.2) continuously over a reinforcing profile member length (45) corresponding with at least half the girder profile member length (25) of the girder profile member (21.1, 21.2), and wherein the U reinforcing profile member (22.1, 22.2) as considered in a cross-section extending perpendicularly to the second longitudinal axis (43) has substantially over its entire reinforcing profile member length (45) a first U-shaped U profile cross-section (51.1, 51.2) and is formed with a first base profile (46), which extends in the second longitudinal direction (44) and from which two lateral first U profile limbs (48.1.1, 48.1.2; 48.2.1, 48.2.2) are folded or bent away, the limbs extending substantially perpendicularly away from the first base profile (46) in the same direction substantially parallel to one another at a transverse spacing which corresponds with a first base profile width (47) and upwardly as considered in the installed setting (29) and having fastening ends (49.1.1, 49.1.2; 49.2.1, 49.2.2) welded to the underside (34) of the girder profile member (21.1, 21.2), and wherein the U reinforcing profile member (22.1, 22.2) has a U reinforcing profile member width (47) which corresponds with the transverse spacing and a U reinforcing profile member height (50.1, 50.2) which corresponds with a spacing of the fastening ends (49.1.1, 49.1.2; 49.2.1, 49.2.2) from the first base profile (46) and is greater than the U reinforcing profile member width (47), characterised in that the U reinforcing profile member height (50.1, 50.2) is greater than the girder profile member height (40.1, 40.2) measured in the same direction as the U reinforcing profile member height (50.1, 50.2) and that the U reinforcing profile member width (47) is smaller, by more than twice the wall thickness (28.1, 28.2) of the girder profile member (21.1, 21.2), than the girder profile member width (27.1, 27.2) measured in the same direction as the U reinforcing profile member width (47).
2. Scaffolding bar according to claim 1, characterised in that the U reinforcing profile member height (50.1, 50.2) is greater than the U reinforcing profile member width (47) by at least the factor 1.3, 1.5, 1.6 or 1.7.
3. Scaffolding bar according to one of the preceding claims, characterised in that the first U profile limbs (48.1.1, 48.1.2; 48.2.1, 48.2.2) have in the region of the fastening ends (49.1.1, 49.1.2; 49.2.1, 49.2.2) thereof first limb wall parts (53.1.1, 53.1.2; 53.2.1, 53.2.2) which are folded away or bent over from the first U profile limbs (48.1.1, 48.1.2; 48.2.1, 48.2.2) in a direction towards one another or inwardly and which have at the ends thereof associated with the girder profile member (21.1, 21.2) the fastening ends (49.1.1, 49.1.2; 49.2.1, 49.2.2).
4. Scaffolding bar according to claim 3, characterised in that the first limb wall parts (53.1.1, 53.1.2; 53.2.1, 53.2.2) as considered in a cross-section extending perpendicularly to the second longitudinal axis (43) are folded away or bent over from the first U profile limbs (48.1.1, 48.1.2; 48.2.1, 48.2.2) through an angle (54.1.1, 54.1.2; 54.2.1, 54.2.2).
5. Scaffolding bar according to claim 4, characterised in that the angle (54.1.1, 54.1.2) is an obtuse angle.
6. Scaffolding bar according to claim 4, characterised in that the angle (54.2.1, 54.2.2) is an acute angle.
7. Scaffolding bar according to any one of the preceding claims, characterised in that the girder profile member is a round tube (21.2) with an outer diameter corresponding with the girder profile member width (27.2) and the girder profile member height (40.2).
8. Scaffolding bar according to any one of the preceding claims, characterised in that the girder profile member (21.2) and/or the U reinforcing profile member (22.1, 22.2) is or are constructed and/or arranged symmetrically with respect to a longitudinal plane (36) of symmetry containing the first longitudinal axis (23) and the second longitudinal axis (43).
9. Scaffolding bar according to any one of claims 1 to 6, characterised in that the girder profile member (21.1) is a U girder profile member, which as considered in a cross-section extending perpendicularly to the first longitudinal axis (23) has a U-shaped second U profile cross-section (59) substantially over the entire girder profile member length (25) and is open in an opening direction directed away from the U reinforcing profile member (22.1, 22.2) and upwardly as considered in the installed setting (25) and which is formed with a second base profile (60) extending in the first longitudinal direction (24) and having a second base profile width (61) as considered in a cross-section extending perpendicularly to the first longitudinal axis (23), wherein two lateral second U profile limbs (62.1, 62.2) are folded or bent away from the second base profile (60) and extend substantially perpendicularly away from the second base profile (60) in the same direction substantially parallel to one another at a transverse spacing corresponding with the second base profile width (61) and upwardly as considered in the installed setting (29), and wherein the second U profile limbs (62.1, 62.2) in the region of the support ends (64.1, 64.2) thereof, which face away from the second base profile (60) and are upper in the installed setting (29), form support edges (30.2.1, 30.2.2) for the support and/or suspension of scaffolding coverings (31), wherein the second U profile limbs (62.1, 62.2) have a transverse inner spacing (66) from one another in the region of the support ends (64.1, 64.2) thereof.
10. Scaffolding bar according to claim 9, characterised in that the support ends (64.1, 64.2) of the second U profile limbs (62.1, 62.2) are formed by folded-away or bent-away portions, wherein the second U profile limbs (64.1, 64.2) have second limb wall parts (68.1, 68.1), which are each bent or folded away through approximately 180 degrees inwardly into a U girder profile member interior space (67) bounded by the second U profile limbs (64.1, 64.2) and the second base profile (60), of limb ends, which wall parts extend in the direction of the second base profile (60) downwardly as considered in the installed setting (29) and as considered in a cross-section extending perpendicularly to the first longitudinal axis (23) have the transverse inner spacing (66) from one another.
11. Scaffolding bar according to claim 9 or 10, characterised in that the U reinforcing profile member width (47) as considered in a cross-section extending perpendicularly to the second longitudinal axis (43) is slightly smaller than the transverse inner spacing (66) between the second U profile limbs (62.1, 62.2) of the U girder profile member.
12. Scaffolding bar according to any one of claims 9 to 11, characterised in that the U girder profile member and/or the U reinforcing profile member (22.1, 22.2) is or are constructed and/or arranged symmetrically with respect to a longitudinal plane (36) of symmetry containing the first longitudinal axis (23) and the second longitudinal axis (43).
13. Arrangement of a first scaffolding bar (20.1, 20.2, 20.6) according to any one of the preceding claims and a second scaffolding bar (20.1, 20.2, 20.6) according to any one of claims 9 to 12, wherein the U reinforcing profile member (22.1) of the first scaffolding bar (20.1, 20.2, 20.6) is inserted with a small lateral play between the second U profile limbs (62.1, 62.2) of the U girder profile member of the second scaffolding bar (20.1, 20.2, 20.6) so that as considered in a cross-section extending perpendicularly to the respective second longitudinal axis (43) the first base profile (46) of the U reinforcing profile member (22.1) of the first scaffolding bar (20.1, 20.2, 20.6) is arranged at an insertion spacing (74.1, 74.2, 74.3) from the support ends (64.1, 64.2) of the second U profile limbs (62.1, 62.2) of the U girder profile member of the second scaffolding bar (20.1, 20.2, 20.6) in a U girder profile member interior space (67) bounded by the second U profile limbs (62.1, 62.2) and by the second base profile (60) of the U girder profile member of the second scaffolding bar (20.1, 20.2, 20.6).
14. Arrangement according to claim 13, characterised in that the U reinforcing profile member (22.1), which is inserted into the U girder profile member interior space (67) of the U girder profile member of the second scaffolding bar (20.6), of the first scaffolding bar (20.6) bears by the first base profile (46) thereof against the second base profile (60) of the U girder profile member of the second scaffolding bar (20.6).

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