EP0736647A1 - Scaffold platform - Google Patents

Abstract

The profiled parts forming the floor are made of extruded, light metal. They are coupled together along at least one inner connecting position. The floor is fitted with the profile end joining members and with hangers. The profiled parts contain a long seam, butting assembly regions without welds, screws and rivets. The mutually allocated assembly regions at both profiled parts have stacked compression faces, supporting the operational and mounting forces, which they also transfer, with the forces orthogonal to the main forces. The profiled parts may have partial beam and weld-free assembly structures.

Description

The invention relates to a scaffolding floor with floor profile parts oriented in its longitudinal direction, which are designed as light metal extruded profile parts and which are connected to one another along at least one internal connection point, and which is equipped with end connection means for its floor profile parts and with mounting aids.

The list of these features, which are important for the definition, can only be obtained by considering several documents of the prior art.

There are various designs of scaffolding floors with the help of light metal extruded profiles. It is known among them to join two profile parts of approximately the same width, with a strut-like structure design in the outer edge region. So far, a joining structure has been selected that permits mounting fixation, but the actual connection is made by welding, at least in some areas. On the end faces of such scaffolding floors, cross-connection elements and hooks, hooking claws or other hooking profiles are optionally provided with securing aids.

On the one hand, welding leads to distortion of the profile parts, which are mostly designed with thin wall thicknesses, and above all to a local reduction in the strength values and thus the overall load-bearing capacity or load options. To take this into account, appropriate material thicknesses must be provided in wide areas around possible welds. This increases the overall weight.

The patent (the patent application) deals with a group of inventions which are connected to one another in such a way that they implement a single general inventive idea which, in the case of scaffolding floors of the type mentioned at the outset, is the profile structure of extruded light metal profile parts for the basic construction and the connection with each other and with associated Design elements in such a way that manufacture, assembly, storage, transport and use are improved in that the support and transfer of occurring forces is made possible in a favorable manner and the manufacturing conditions are improved and optimized while largely avoiding welding.

Wide parts of the first area of the invention have for its object to make a scaffold floor available, in which the connection and / or design of in particular two longitudinally oriented, relatively wide floor profile parts and possibly other components is of a more favorable type in terms of production technology, load and material than with known scaffolding floors. It may be of importance here that at least approximately in the longitudinal center with the aid of permanently attached suspension structures without substantial welding in the longitudinal seam area.

The first part of the invention group is essentially based on the task of finding an improved design of the longitudinal connection. To solve this problem it is provided that the floor profile parts contain longitudinal seam-butt-joint areas, which are designed as sweat-free, screw-free and rivet-free hook-in and under-grip joint structures. The mutually associated joining areas on both floor profile parts can have the operating forces and the cohesive forces supporting and transferring, superimposed pressure surfaces which in the are essentially normal to the main forces. It is particularly expedient if the longitudinally oriented extruded profile parts have partial spar structures formed with partial spar walls and sweat-free joining structures.

Due to the sensible structuring of the two floor profile parts with an external, use-oriented spar structure as well as sensible end cross-connections and attachment aids and in particular, if necessary, provided medium, secured against opening opening, welds are completely superfluous or limited to a minimum in wide areas, especially on the areas of the end parts, so that especially in the middle area, in which the highest forces occur, material weakening by welding is minimized or completely avoided. Due to the mostly laterally accessible profile designs, the profile parts can be produced and processed particularly efficiently even with very small wall thicknesses of, for example, only 1.8 mm and inexpensive tool designs with very little material expenditure. The spars have low heights with a very low total weight of the scaffolding floors and therefore favorable space conditions for storage and transport.

In addition to the above-mentioned features common to the prior art and the invention, features can also be used, particularly in the case of further definitions of parts of the invention within the scope of the group of inventions belonging together to add that at least in both outer edge areas box-shaped longitudinal reinforcing bars are integrally formed and that partial areas of the underside have vertical webs with lower horizontal flanges and cross-connection means on the two end faces and hanging means which can be suspended in the associated scaffold support structure are firmly connected to the base profile parts.

• zwei längsorientierte Strang-Preß-Profilteile sind bis auf die Fügestruktur gleich gestaltet;
• im Längsrandbereich jedes Boden-Profilteiles ist ein integriertes, hochkant orientiertes Kastenprofil ausgebildet;
• im den inneren Verbindungsbereich des Gerüstbodens bildenden Innenrandbereich jedes Boden-Profilteiles sind Eingriffsprofilgestaltungen ausgebildet, die zusammengefügt ein Kastenprofil mit Hochkantorientierung bilden.

The further part of the invention group is essentially based on the task of finding an improved design of spar part and connecting element designs. The following features are provided to solve this task:

• two longitudinally oriented extruded profile parts are designed the same except for the joining structure;
• An integrated, upright oriented box section is formed in the longitudinal edge area of each floor section;
• In the inner edge area of the scaffolding floor forming the inner connecting area of each floor profile part, engagement profile designs are formed which, when assembled, form a box profile with an upright orientation.

• Im Längsrandbereich jedes Boden-Profilteiles ist ein integriertes, hochkant orientiertes Kastenprofil ausgebildet;
  im inneren Mittelbereich ist mit Fügeteilen weingstens ein dritter hochkant orientierter kastenartiger Holm gebildet.

Further or alternative features can also be provided as follows:

• An integrated, upright oriented box profile is formed in the longitudinal edge area of each floor profile part;
  in the inner middle area, at least a third upright box-like spar is formed with joining parts.

The design can also provide that the joining part longitudinal connection is secured against opening with a form-fitting insert that engages both bottom profile parts and / or that the joining structures have part-cylindrical longitudinal grooves and matching part-cylinder engagement ribs and assign them a spacing-apart longitudinal rib engaging structure is.

The scaffold floor can also advantageously be formed with only two longitudinally oriented extruded profile parts, which, apart from the joining structure, have the same design. In this case and in other configurations it can be provided that interlocking engagement longitudinal rib parts are provided in the area of the longitudinal center of the scaffold floor, which are designed with merging inclined surfaces and snap-in hook surfaces.

The design can also provide
that the form-fitting hook-in connection designed with sufficient cross-sections, preferably in the area of the tensile forces of the moment resulting from the load in the connection and at a distance therefrom, pressure-supporting surfaces and a barb-like latching connection with at least one cantilever-like bending leg with a cross-section that points to the formation of insertion bevels and the elastic Stroke of the toothing is matched.
The design can also provide
that the cross sections of the snap-in connection parts are designed and arranged in the main bending zones of the bending limbs of the suspension elements designed as target bending zones free of use or at least low in load.

You can also choose a hook-in design in which hooks formed by extruded profile sections with a truss structure and plug-in pins are provided, the plug-in pins of which engage through suitable openings in the respective cross-connection caps that cover the edge-side longitudinal beam profiles. Furthermore, it can be provided that the cross-connection caps are C-shaped or U-shaped components, the horizontal legs of which, if necessary with substantially slot-shaped notches in one of the joining parts, engage under surfaces of component walls of the base profile parts and fit on Access points are welded to them. For a sensible design of neighboring components, the middle safety hook can be welded directly onto the vertical, smooth outer surface of the respective cross-connection cap, avoiding an insertion pin.

• die Profilteile des Gerüstbodens bestehen aus Leichtmetall;
• Endverbindungsmittel für die Bodenprofilteile sind mit Einhängehilfsmitteln ausgestattet;
• die Endverbindungsmittel erstrecken sich über die gesamte Breite des Gerüstbodens;
• die Endverbindungsmittel sind mit kastenartigen Hohlprofilteilen von Strang-Preß-Profil-Abschnitten gestaltet;
• der Gerüstboden weist im Fügezustand wenigstens drei Kasten-Längs-Profile auf.

Dabei kann zweckmäßigerweise vorgesehen sein, daß in Verbindungsbereichen der Hohlprofilteile des Gerüstbodens Aussparungen und Schenkel bzw. Lappen schweißelektroden-zugängliche Nahtbereiche bilden. Vorteilhafterweise sind die Hohlprofilteile mit parallel zueinander verlaufenden Einsteckschenkeln gestaltet, die in die Bodenprofilteile einsteckbar sind, wobei die Einsteckschenkel wenigstens teilweise an zugeordneten Innenflächen der Bodenprofilteile anliegen. Eine günstige Einhängehilfsmittel-Gestaltung kann vorsehen, daß von Strang-Preß-Profil-Abschnitten mit Fachwerkstruktur gebildete Einhängehaken vorgesehen sind, die an der vom Gerüstboden wegweisenden Stirnfläche der Hohlprofilteile mittels Schweißen befestigt sind und/oder daß von Strang-Preß-Profil-Abschnitten mit Fachwerkstruktur gebildete Einhängehaken vorgesehen sind, die einstückig mit den Hohlprofilteilen verbunden sind.An advantageous design can also have the following features:

• the profile parts of the scaffold floor are made of light metal;
• End connection means for the floor profile parts are equipped with suspension aids;
• the end connection means extend over the entire width of the scaffold floor;
• the end connection means are designed with box-like hollow profile parts of extruded profile sections;
• the scaffold floor has at least three box longitudinal profiles in the assembled state.

It can be expediently provided that in connection areas of the hollow profile parts of the scaffold floor recesses and legs or tabs form weld areas accessible to welding electrodes. Advantageously, the hollow profile parts are designed with mutually parallel insertion legs that can be inserted into the bottom profile parts, the insertion legs being at least partially attached Fit the inner surfaces of the floor profile parts. A favorable mounting aid design can provide that hooks formed by extruded profile sections with a truss structure are provided, which are fastened to the end face of the hollow profile parts facing away from the scaffolding floor by means of welding and / or by using extruded profile sections Truss structure formed hooks are provided, which are integrally connected to the hollow profile parts.

For other areas of the scaffolding floors it can be provided that the longitudinal spars are upright rectangular spar profiles with rounded stacking ribs. The auxiliary reinforcement structures can also be designed as T-structures or angular structures that hang downward. Furthermore, it can be provided that the spar structures have reinforcing material accumulations in their edge regions in the corners, which are designed in their outer surfaces as stack shifting protective ribs. Useful designs for use and manufacture provide that in the plate areas of the tread free from underneath webs and closed spar spaces, preferably oval oval openings are punched out for weight reduction and slip protection, the edges of which are bent or embossed at least in some areas.

Further advantageous refinements, features, advantages, details and aspects of the invention can also be found in their adaptations to the embodiments according to the invention from the claims and from the following description part dealt with by means of the drawings.

An embodiment and variants of the invention are explained below.

Fig. 1

ein Schrägbild eines Gerüstausschnitts mit zwei Stielen, einem Horizontalriegel und einem Gerüstboden bzw. Anschlußteil eines Gerüstbodens;

Fig. 2

ein Schrägbild mit Teil-Schnitt eines Endteiles eines Gerüstbodens;

Fig. 3

eine Seitenansicht eines im Bereich der Ecken des Gerüstbodens angebrachten Einhängehakens;

Fig. 4

ein Schräg-Schnittbild des Einhängehakens gemäß Fig. 3 und des Stirnprofiles in der Einbauposition;

Fig. 5

eine explosionsartige Teil-Ansicht des Gerüstbodens, des U-förmigen Stirnprofilteils der Querverbindungskappe und des Einhängehakens gemäß Fig. 3 zur Verdeutlichung der Montage- und Einbauverhältnisse;

Fig. 6

ein Teil-Schnittbild des Einhängehakens gemäß Fig. 3 in seiner Einbaustellung;

Fig. 7

ein Teil-Schnittbild eines Einhängehakens, der in der Mitte der Stirnseite des Gerüstbodens zwischen den beiden, im Bereich der Ecken des Gerüstbodens vorgesehenen Einhängehaken angebracht ist, in seiner Einbaustellung;

Fig. 8

eine Teil-Stirn-Seitenansicht auf zwei übereinandergestapelte Gerüstböden zur Verdeutlichung der dabei vorliegenden gegenseitigen Eingriffsverhältnisse;

Fig. 9

eine Teil-Seitenansicht eines Gerüstbodens im Bereich des mittleren Einhängehakens;

Fig. 10.1

eine Teil-Draufsicht auf einen Eck-Bereich des Gerüstbodens mit den in seiner Lauffläche vorgesehenen Öffnungen bzw. Durchbrechungen und Rauhigkeiten;

Fig. 10.2

einen vergrößerten Querschnitt durch eines der Löcher in der Lauffläche des Gerüstbodens mit der nach oben ausgeprägten Lochrand-Struktur und den überlagerten, parallel zur Längserstreckung des Gerüstbodens verlaufenden Rauhigkeiten;

Fig. 10.3

einen vergrößerten Teil-Längsschnitt im Bereich eines der Löcher in der Lauffläche des Gerüstbodens mit der nach oben ausgebildeten Lochrand-Struktur;

Fig. 10.4

eine vergrößerte Draufsicht auf eines der Löcher in der Lauffläche des Gerüstbodens;

Fig. 10.5

ein stark vergrößertes Schrägbild eines Teil-Querschnitts durch eines der Löcher in der Lauffläche des Gerüstbodens zur Verdeutlichung der Oberflächenstruktur im Bereich des Lochrandes;

Fig. 11

einen Vertikal-Querschnitt durch den Gerüstboden mit seinen beiden Bodenprofilteilen mit außenseitigen, integrierten Kastenprofilen und mit seinem, durch das Zusammenfügen der Eingriffsprofilgestaltungen der beiden Bodenprofilteilen gebildteten mittigen Kastenprofil mit Hochkantorientierung;

Fig. 12

eine Teil-Draufsicht auf einen Endbereich eines Gerüstbodens mit den in Längsrichtung verlaufenden Teilbereichen der Lauffläche mit Löchern und überlagerten Oberflächenrauhigkeiten;

Fig. 13.1

einen Querschnitt durch das linke Bodenprofilteil des Gerüsbodens mit außenseitigem, integrierten Kastenprofil,den T-förmigen, nach unten verlaufenden Verstärkungsrippen und mit der innenseitigen Eingriffsprofilgestaltung;

Fig. 13.2

einen Querschnitt durch das rechte Bodenprofilteil des Gerüstbodens, das bis auf die innenseitige Eingriffsprofilgestaltung dem Bodenprofilteil gemäß Fig. 13.1 gleicht;

Fig. 14

einen Teil-Querschnitt durch das außenseitige, integrierte Kastenprofil;

Fig. 15.1

einen Teil-Querschnitt durch die innenseitige Eingriffsprofilgestaltungen der beiden Bodenprofilteile des Gerüstbodens nach dem Einhängen der Teilzylinderrippe der rechten Eingriffsprofilgestaltung in die Nockenrippe mit Zylinderbegrenzungswand der linken Eingriffsprofilgestaltung zu Beginn des Einrastprozesses;

Fig. 15.2

einen Teil-Querschnitt durch die innenseitige Eingriffsprofilgestaltungen der beiden Bodenprofilteile des Gerüstbodens nach dem Einhängen der Teilzylinderrippe der rechten Eingriffsprofilgestaltung in die Nockenrippe mit Zylinderbegrenzungswand der linken Eingriffsprofilgestaltung während des Einrastprozesses;

Fig. 15.3

einen Teil-Querschnitt durch die innenseitige Eingriffsprofilgestaltungen der beiden Bodenprofilteile des Gerüstbodens nach dem Einhängen der Teilzylinderrippe der rechten Eingriffsprofilgestaltung in die Nockenrippe mit Zylinderbegrenzungswand der linken Eingriffsprofilgestaltung in eingerasteter Stellung und Bildung eines hochkant orientierten Kastenprofiles;

Fig. 16

ein Schrägbild eines Gerüstauschnitts mit zwei Stielen, einem Horizontalriegel und einem Gerüstboden bzw. Anschlußteil eines Gerüstbodens, mit einer alternativen Ausführungsform des Stirnprofilteils mit einem kastenartigen Hohlprofil;

Fig. 17

eine explosionsartige Teilansicht des Gerüstbodens und des mit einem kastenartigen Hohlprofil gebildeten Stirnprofilteils mit Teilschnitt und an diesen stirnseitig angebrachten Einhängehaken, zur Darstellung der gegenseitigen Eingriffs- bzw. Einsteckverhältnisse;

Fig. 18

ein Teil-Schnittbild des Stirnprofilteils und des Gerüstbodens im Bereich einer der Einhängehaken, wobei diese stirnseitig an das Stirnprofilteil angeschweißt sind;

Fig. 19

ein Teilschnitt-Bild des einstückig mit den Einhängehaken ausgebildeten Stirnprofilteils und des Gerüstbodens.

Show it:

Fig. 1

an oblique view of a scaffold section with two stems, a horizontal bar and a scaffold floor or connecting part of a scaffold floor;

Fig. 2

an oblique image with partial section of an end part of a scaffold floor;

Fig. 3

a side view of a hook attached in the area of the corners of the scaffolding floor;

Fig. 4

an oblique sectional view of the hook shown in FIG 3 and the end profile in the installation position.

Fig. 5

an exploded partial view of the scaffolding floor, the U-shaped end profile part of the cross-connection cap and the hooking hook according to Figure 3 to illustrate the assembly and installation conditions.

Fig. 6

a partial sectional view of the hook shown in Figure 3 in its installed position.

Fig. 7

a partial sectional view of a hook, which is attached in the middle of the end face of the scaffold floor between the two hooks provided in the area of the corners of the scaffold floor, in its installed position;

Fig. 8

a partial forehead side view of two stacked scaffolding floors to illustrate the mutual engagement conditions present;

Fig. 9

a partial side view of a scaffold floor in the area of the middle hook;

Fig. 10.1

a partial plan view of a corner area of the scaffold floor with the openings or openings and roughness provided in its tread;

Fig. 10.2

an enlarged cross section through one of the holes in the tread of the scaffold floor with the upwardly pronounced hole edge structure and the superimposed roughnesses running parallel to the longitudinal extension of the scaffold floor;

Fig. 10.3

an enlarged partial longitudinal section in the region of one of the holes in the tread of the scaffold floor with the hole edge structure formed upward;

Fig. 10.4

an enlarged plan view of one of the holes in the tread of the scaffold floor;

Fig. 10.5

a greatly enlarged oblique view of a partial cross section through one of the holes in the tread of the scaffolding floor to illustrate the surface structure in the area of the hole edge;

Fig. 11

a vertical cross-section through the scaffolding floor with its two floor profile parts with external, integrated box profiles and with its central box profile formed with the vertical orientation by joining the engagement profile designs of the two floor profile parts;

Fig. 12

a partial plan view of an end portion of a scaffold floor with the longitudinally extending portions of the tread with holes and superimposed surface roughness;

Fig. 13.1

a cross-section through the left floor profile part of the scaffold floor with outside, integrated box profile, the T-shaped, downwardly extending reinforcing ribs and with the inside engagement profile design;

Fig. 13.2

a cross section through the right floor profile part of the scaffold floor, which is the same as the floor profile part according to FIG. 13.1 except for the inside engagement profile design;

Fig. 14

a partial cross section through the outside, integrated box profile;

Fig. 15.1

a partial cross-section through the inside engagement profile designs of the two floor profile parts of the scaffold floor after the partial cylinder rib of the right engagement profile design has been hooked into the cam rib with the cylinder boundary wall of the left engagement profile design at the beginning of the latching process;

Fig. 15.2

a partial cross-section through the inside engagement profile configurations of the two floor profile parts of the scaffold floor after the partial cylinder rib of the right engagement profile configuration has been hooked into the cam rib with cylinder boundary wall of the left engagement profile configuration during the latching process;

Fig. 15.3

a partial cross-section through the inside engagement profile designs of the two floor profile parts of the scaffold floor after hanging the partial cylinder rib of the right engagement profile design into the cam rib with the cylinder boundary wall of the left engagement profile design in the engaged position and formation of an upright oriented box profile;

Fig. 16

an oblique view of a scaffold section with two stems, a horizontal bar and a scaffold floor or connecting part of a scaffold floor, with an alternative embodiment of the end profile part with a box-like hollow profile;

Fig. 17

an exploded partial view of the scaffold floor and the end profile part formed with a box-like hollow profile with partial section and on this end attached hooks, to illustrate the mutual engagement or insertion conditions;

Fig. 18

a partial sectional view of the end profile part and the scaffolding floor in the area of one of the hooks, these being welded to the end profile part on the end face;

Fig. 19

a partial sectional image of the end profile part formed in one piece with the hooks and the scaffold floor.

Fig. 1 shows only a small part of a scaffold. Stems 30 carry perforated disks 31, which are known per se, according to the spacing of the scaffolding system. Between the stems 30, a support bolt 32 is fastened to the perforated disks 31 with the aid of wedge heads 35. For this purpose, wedges 34 penetrate the perforated disks 31 and the wedge heads 35. The support bar 32 is designed as a U-profile which is open at the top. The upper ends of the vertical legs 37.1 and 37.2 of the support bar 32 are designed as support edges 38 for the hooks 46 of the scaffold floor 45. The wedge heads 35 are designed in a known manner with horizontal slots and put on the perforated disks 31 and secured to them with the wedges 34. In this or a similar way, many scaffolding days are realized in one scaffold. This section is only shown to illustrate how the scaffold floors with their designs are arranged throughout the scaffold. Instead of a scaffold with stems and modular node connections, frame scaffolds can also be provided.

1 and 2 show, the scaffold floor 45 selected here as an example has three hooks 46 on the two narrow end faces, of which the two outer hooks 46.1 and 46.2 in the region of the corners of the scaffold floor 45 and a differently designed hook 46.3 in are arranged in the middle. These are attached in a special way, as can be seen from the following drawings and associated descriptions.

1, 2 and 12 show a uniform scaffold floor 45. This consists of several profile parts. The bottom profile parts 51 and 52 are connected to one another along the central seam 53. Cross-connection caps 54 designed as end profiles are connected together with the hooks 46.1, 46.2, 46.3 to the base profile parts 51 and 52 in the manner described in more detail with reference to the further drawings. Your suspension mouth 47 reach over the vertical legs 37.1, so that the respective scaffold floor is supported on the support edge 38 of the support bar 32. A second scaffold floor (not shown) can be supported on the vertical leg 37.2.

The scaffold floor 45 has - as illustrated in FIGS. 1, 2 and 10.1 to 10.5 - a profiled and partially perforated running surface 55. Two edge rails 455.1 and 455.2 and a central rail 456 are clearly visible on its underside in FIG. 11 and further, longitudinal T- Ribs 481 are formed as auxiliary reinforcement structures in one piece with the respective floor profile part.

As can be seen, there is an integral surface part and frame structure of great stability with regard to bending, twisting and twisting.

The hooks 46.1 and 46.2 each consist of a section of a light metal extruded profile part and have a framework-like profile structure, as in their Overall structure and its details can be seen in particular in FIG. 3. The cut surfaces are the side surfaces 58.1 and 58.2 of the support hooks 46. These cut surfaces are at a distance from one another which determines the thickness 59 of the support hooks 46. The support hook 46 is formed with a support part 265 and a fastening part 250. At the transition between the support part 265 and the fastening part 250, a stop surface 260 is formed with stop shoulders 261.1 and 261.2 extending outwards. The height 258.1 and 258.2 of the initial shoulder 261.1 and 261.2 corresponds approximately to the wall thickness 257 of the cross-connection cap 54 of, for example, 2 mm.

The fastening part 250 is formed with an upper and a lower outer journal surface 262.1 and 262.2, which each run parallel to one another and is inserted into the opening 253 provided here and fastened in a suitable manner until the stop surface 260 abuts the contact surface 252 of the cross-connection cap 54 described below. From the rear lower corner 266 between the lower wall 256.1 and the rear wall 256.3 of the fastening part 250, a diagonal web 267 formed with approximately parallel wall surfaces runs obliquely upwards, the exact position of which will be explained in connection with the design of the support part 265. The rear wall 256.3 is perpendicular to the top wall 256.2 and to the bottom wall 256.1 and the inner and outer transitions between these wall parts are rounded.

The support part 265 lies outside the part of the scaffolding floor 45 delimited by the running surface 55, that is to say in front of the contact surface 252 of the cross-connection cap 54, against which the stop surface 260 of the hook 46 is abutted. The outer contour of the support part 265 initially runs parallel to the upper and lower pin outer surfaces 262.1 and 262.2 of the fastening part 250 both in the upper and in the lower partial area. The lower boundary 264 of the support part 265 goes from an outer, lower, upwardly extending rounding surface 271 in a vertical inner mouth wall 272 of the suspension mouth 47 over. This is adjoined at the top by an inner wedge surface 273, which extends as far as the contact surface 275 of the suspension mouth 47. The contact surface 275 has a width 276, which is 6 mm, for example. The hook-in jaw 47 is bounded towards the front next to the support surface 275 by a downward-extending inner wedge surface 274, which has approximately the same steep inclination as the wedge surface 273. It limits the hook part 277 inwards together with an outer, vertical jaw wall 278, the bottom merges into an insertion bevel 279, which is followed by the lower hook end surface 280 as a curve. The hook part 277 is bounded on the outside by a hook surface 281 which is inclined upwards in the direction away from the scaffolding floor 45, said hook surface extending somewhat above the contact surface 275 and passing there into a vertical abutment surface 282 of the support part 265. This goes with an upper bump 283 in the Upper boundary surface 263 of the support member 265. The vertical abutment surface 282 lies at a distance 284 in front of the abutment surface 260. This is the greatest distance from the abutment surface 260, so that the vertical abutment surface 282, if necessary, when the hook 46 hits an obstacle or when the scaffolding floor 45 falls vertically onto the hook 46 hits with the upper rounding 283. The inclination of the hook surface 281 is such that the hook part 277 is not bent inwards if possible. For this purpose, as can be seen, a large accumulation of material formed as a knot area 291 is provided in the area next to the abutment surface 260, and the upper area of the support part 265 is suitably provided with a support part recess 285. This has a lower, front oblique boundary 286, which extends the upper wall 287 of the diagonal web 267 of the fastening part 250, and is otherwise delimited by wall surfaces running approximately parallel to the outer surfaces, while its straight inner wall 289 forms a connecting web 290, which of the Material accumulation runs obliquely in the direction of the stop shoulder 261.1.

The rear wall 256.3, the top wall 256.2, the connecting web 290 and the diagonal web 267 delimit an upper recess 295 which can be essentially assigned to the fastening part 250 with respect to its cross-sectional area.

Their inner boundary surfaces run approximately parallel to the outer wall surfaces of the rear wall 256.3 and the upper wall 256.2 and to the inner wall 289 of the connecting web 290, and the upper wall 287 formed by the diagonal web 267 runs approximately parallel to the inner boundary surface 297 of the diagonal web 267 of the lower recess 269. This is supported by the diagonal web 267, the lower wall 262.1 , delimits the wall part formed with the lower boundary 264, the vertical wall 268 and the wall part assigned to the inner wedge surface 273, the lower recess 269 being essentially assignable to the fastening part 250 with respect to its cross-sectional area. The inner boundary surfaces 297 of the lower recess 269 run essentially parallel to the associated outer wall surfaces. The inner boundary surface 297 of the diagonal web 267 runs approximately parallel to its upper wall 287 delimiting the upper recess 295.

All inner boundary surfaces of the support part recess 285 and the upper and lower recesses 295 and 269 merge into one another without kinks.

The connecting web 290 merges into the node area 291, which, in addition to the hanging mouth 277, serves to support the forces acting on the supporting part 265 and this into the three webs, namely the wall part assigned to the inner wedge surface 273 and the vertical wall 268, the diagonal web 267 and the connecting web 290 transferred together with the top wall 256.2. In front of this knot area 291 there is a support reinforcement 292 on the outer side of the suspension mouth 47, which - as can be seen - is delimited by the described oblique lines and particularly serves the stability of the support part 265 without the wall thickness differences becoming too great. This enables good production using suitable techniques, particularly in the light metal extrusion process.

The distance 284 between the vertical abutment surface 282 and the stop surface 260 is preferably 32 mm, while the bearing surface 275 is 293 below the upper limit 263, this dimension 293 preferably being 20 mm, while the hook part 277 to its lower tip 280 is about 24 mm long. The total length 294 of the support hook 46 with the fastening part 250 is approximately 92 mm in a preferred embodiment. It is particularly advantageous that the diagonal web 267 passes through the node region 291 in a quasi-straight extension as a likewise diagonally extending element into the support reinforcement 298 and thus forces acting on the vertical abutment surface 282 into the lower, rear one Corner of the fastening part 250 is transferred, so that the entire hook 46 - as can be seen - is designed like a truss and thus absorbs both bending and impact forces in its entirety and the corresponding forces on the stop surface, the outer surface of the pin or the fastening described below to the rest Scaffolding floor structure transfers perfectly, so that a design that meets all practical needs is found, which allows particularly easy manufacture and assembly, because the extruded profile only needs to be cut, inserted and welded on.

The embodiment of a hook 46.3 according to FIG. 7, as already shown in FIGS. 1 and 2 in the middle of the cross-connection cap 54, differs from the embodiment described above in that the fastening part 220 is not a plug-in pin, but a one simple flat bearing surface 221 having vertical wall 237 is formed on the support part 225. The entire suspension hook 46.3 is expediently welded, for example with the aid of a suitable auxiliary device, all around to the outer boundary surface of the vertical wall 210 of the cross-connection cap 54, so that the height of the support surface 228 of the suspension jaw 227 is at the same height as the support surface 275 of the other two suspension hooks 46.1 and 46.2 or is slightly above. The hook 46.3 is made of one Light metal extruded profile formed, which has the shape shown in Fig. 7, wherein its lateral boundary surfaces result from simple cutting.

The design of the hook 46.3 largely corresponds to the design of the support part 265 of the hook 46.1 and 46.2. An essential difference is the vertical wall 237, which has been slightly changed in its design and has been moved forward to the position of the abutment surfaces 260 at a distance 284 from the vertical abutment surface 282, the upper and lower edges of which are only slightly rounded. Furthermore, the rear of the support part recess 232 is no longer limited by a connecting web, but rather by the inner boundary surface 231 which runs approximately parallel to the vertical contact surface 221 of the vertical wall 237. Otherwise, the shape of the support part recess 232 is identical to the support part recess 285 of the hooks 46.1 and 46.2. The lower recess 233 is bounded on the back by the inner boundary surface 234, which runs approximately parallel to the vertical contact surface 221 of the vertical wall 237, and the remaining interior design of the lower recess 233 is identical to that of the lower recess 269 of the hooks 46.1 and 46.2. Except for the design of the contact surface 221 of the vertical wall 237, all the other outer contours of the hooking hook 46.3 are identical to the outer contour of the hooking hooks 46.1 and 46.2.

The spar-like edge profile 60 is best shown in detail in FIG. 14. It forms an upright rectangle which is integrally formed on the horizontal base plate 70. It has a smooth vertical inner wall 61, a horizontal lower wall 63 connected via a round corner 62, and an outer wall 64 and an upper wall 65 belonging to the base plate. In the area of the lower outer corner 66, a lower partial cylindrical rib 67 and an outer abutment surface 68 with longitudinal rectangular grooves 69 are formed. The upper corner rib 72 is formed in the same way. On this, a centering rib support surface 73 is formed next to a centering rib 74 in such a way that the partial cylindrical rib 67 - as shown in FIG. 8 - can be inserted into the position centering space 75 and ensures lateral displacement. Otherwise, the edge rail profile has no special features and is essentially based on known design profiles with regard to securing the position, corner stiffening and supporting ribs for storing scaffold floors that are erected on their sides. The ribs on both sides are identical.

Fig. 8 also shows how the stacking ribs prevent lateral sliding of scaffold floors stacked flat on top of one another in a known manner.

The profile of the cross-connection cap 54 results above all from FIGS. 1, 2 and 5. It has a thigh 211, a lower leg 212 and a vertical outer wall 210 and the following connection conditions, which are also designed to match the hook design. In the vertical outer wall 210 of the cross-connection cap 54, two rectangular openings 253 are each arranged at a distance 213 from the end faces 214, which is the distance 215 between the outer boundary surface 76 of the outer wall 64 of the edge profile 60 and the inner boundary surface 77 of the inner wall facing the longitudinal center axis of the scaffolding floor 45 61 corresponds to the edge profile 60 (FIG. 14), so that after inserting the legs 211 and 212 of the cross-connection cap 54 into the receiving openings and structural elements of the base profile part described below and after inserting the hooks 46.1 and 46.2, their respective outside cut boundary surfaces 58.1 and 58.2 parallel to the inner boundary surface 77 of the inner wall 61 of the edge profile 60, these touching. The width 216 of the openings 253 is slightly larger than the respective thickness 59 of the hooks 46 and the height 217 of the openings is slightly larger than the distance 218 between the lower outer surface 262.1 and the upper outer surface 262.2 of the hooks 46.1 and 46.2.

The width or length of the cross-connection cap 54 corresponds at least to the spaced position of the outer walls 64 of the edge profiles 60 of both floor profile parts, so that these are completely covered on the front side by the cross-connection cap 54. To do this, the thighs 211 and the lower legs 212 of the cross-connection cap 54 must be notched at their two outer ends at least by the wall thickness of the respective outer wall 64.

The distance 219 of the horizontal outer surfaces 238, 239 of the cross-connection cap 54 is matched to the insertion conditions (FIG. 7). This includes that the outer surfaces 238, 239 of upper leg 211 and lower leg 212 fit between the horizontal inner surfaces 138, 139 of upper wall 65 and lower wall 63 of the box-shaped edge profile 60 of the edge beam 455 and on the other hand the bottom surface 129 of the center beam 456 and the Bottom surfaces 483 of the lower flanges 482 of the T-ribs 481 abut from the inside against the horizontal inner surface 242 of the lower leg 212 of the cross-connection cap 54.

For inserting the thigh 211 of the respective cross-connection cap 54, the T-ribs 481 are slotted in the region of both front ends of the base profile parts 51, 52 directly below the base plate 70, running parallel to the latter, forming the slot 243.1, as shown in FIG. 5 in particular , the The slot width 244 is slightly larger than the wall thickness 257 of the thigh 211 and the slot depth 245 is greater than the insertion depth 246 of the thigh 211.

The inner walls 61 of the edge profiles 45 forming the edge spars 455 are slotted both above, directly below the base plate 70 and below, directly above the horizontal lower wall 63, forming the slots 243.1, 243.2, the slots 243.2 and 243.3 corresponding to the slots 243.1 described above in the T-ribs 481 are designed in accordance with the design of the thighs 211 and the lower legs 212.

The vertical walls of the central spar 456 or box section are not slotted in as shown in FIG. 5. In order to enable the cross-connection cap 54 to be inserted, the thigh 211 can therefore be slotted over its entire inner length in accordance with the distance and the design of the vertical walls of the central strut 456, the slot width being somewhat larger than the wall thickness of the vertical walls. Depending on the conditions during the manufacture and assembly of the scaffolding floors, as an alternative to the situation described above, however, the vertical walls of the central spar 456 can also be slit in the same way as the T-ribs 481, so that a non-slit cross-connection cap 54 can also be slit into the floor profile structure can be inserted. The other rib parts in the overlap area must also be taken into account and at least one part removed. This is selected in accordance with the respective connection conditions in the area directly under the base plate 70 and the vertical walls.

When inserted, the thighs 211 of the cross-connection cap 54 engage in the slots 243.1 of the T-ribs 481 as well as in the top slots 243.2 of the inner walls 61 of the edge profiles 60 and the lower legs 212 of the cross-connection cap 54 engage in the lower slots 243.3 of the inner walls 61 of the edge profiles 60 while the lower legs 212 encompass both the T-ribs 481 and the bottom surface 129 of the central strut 456. According to the preferred exemplary embodiment shown in FIG. 5, the vertical walls 83, 84 of the central spar 456 engage in the slots, not shown, in the thighs 211 of the cross-connection cap 54.

FIG. 4 shows an oblique sectional view of the hooking hook 46.1 and the cross-connection cap 54 in the installed position. To fix the cross-connection cap 54 at the top, it has a shoulder 247 with a stop surface 248, the height 249 of the shoulder 247 being somewhat smaller than or equal to the wall thickness 71 of the base plate 70 and the upper outer end 241 of the Shoulder 247 is rounded. The attachment of the support hooks 46.1 and 46.2 to the cross-connection cap 54 and the attachment of these parts to the base profile structure is advantageously carried out by means of welding in accordance with the stress-related and fastening conditions, as indicated in FIG. 4.

In the exemplary embodiment, the T-ribs 481 of the floor profile parts 51, 52 are all designed identically and at approximately the same distance from one another. They have a somewhat lower height than the edge profiles 60. These have a horizontal width 79. The T-ribs 481 have a web width 484 which can be determined by calculation from the total length and the load capacity in the usual way. The wall thickness of the walls of the spar profile and the webs is about 2 mm. The wall thickness 71 of the base plate 70 is essentially about 2 mm. The tread pattern is derived from the figures dealt with below.

For the area of the center seam 53, the profile designs differ, as shown in FIGS. 13.1 and 13.2 and 15.1 to 15.3, essentially with regard to the engagement profiles. Both partial box profiles 81 and 82 have slightly downwardly converging vertical walls 83 and 84 and under-grip elements 85 and 86 and upper-engagement elements 87 and 88.

The upper engagement elements 88 have a partial cylinder groove 91 lying under the running surface 55 in a cylinder boundary wall 92, on the part lying on the left in the profile illustration. A cam rib 93 and a rising surface 94 in the direction of the end cylinder surfaces 95 are formed on the cylinder boundary wall 92. The upper engagement elements 87 corresponding to the upper engagement elements 88 have a partial cylinder rib 96, the cylinder radius of which is almost the same as the cylinder radius of the partial cylinder groove 91, the dimensions as discussed below being coordinated with one another in such a way that a rattle-free, as firm as possible connection results. At a distance 103 below the lower surface 97, a cantilever 98 with a length 99 is formed, which ends in a final rounding 101. Its free length is slightly greater than the distance 102 of the vertex 100 of the cam rib 93 lying below, from the inner wall 104 of the connection profile part shown on the right, and the projected distance 89 between the partial cylinder rib 96 and the engagement surface 105 can be smaller than the thickness when not engaged 90 of the cam rib 93 at its apex 100 lying below, so that the cam rib 93 is always supported with certainty on the upper engagement surface 105. The cross-section and corner transitions of the cantilever arm connection 107 are selected such that the cantilever arm 98 does not suffer more bends than it does for a rattle-free and permanent one Connection when snapping is required. A free space 108 beyond the end cylinder surface 95 ensures that the surfaces intended for carrying lie on one another in a desired manner in each insertion and holding position.

The lower clip-in connection is - as can be seen from FIGS. 15.1 to 15.3 - guaranteed with the help of a sensibly designed cantilever leg design. The left-hand connecting part in the figures at a distance 111 from the profile bottom line 112 has a hooking arm 110, which is designed in the connection region 113 with a slightly smaller wall thickness than its other parts, so that when the left and right connecting parts are joined together, an elastic bending of the hooking arm 110 is possible. A lower wedge leg 114 secures an engagement space 115 for the securing arm part 116 of the right connecting cantilever arm 117. At the end of the hooking arm 110, an engagement prism profile 121 with a securing surface 122 is formed at the bottom. This has an area width of the order of 1 mm and an insertion bevel 123. The insertion bevel 124 of the engagement hook 125 of the right-hand connecting part slides along this when inserting, as shown in FIG. 15.2. After latching, the latching surface 126 rests securely on the securing surface 122, as shown in FIG. 15.3. The connecting cantilever 117 has a thicker wall Connection area 128, which largely prevents bending during assembly and assigns the elastic bending to the hooking arm 110. For favorable insertion and engagement conditions, the securing arm part 116 is designed to be slightly inclined to the bottom surface 129. As can be seen, all the profile areas, apart from the hook formations and the area dimensioned for special bends, are designed essentially with the same wall.

The clip-like joint connection is essentially attached as follows: As can be seen, the cam rib 93 is hooked into the partial cylinder groove 91 and the connecting parts are pivoted relative to one another about their central axis 136, so that the cantilever arm 98 slides along on the cam rib 93 until the hook connection over the Position in Fig. 15.2 in the snap-in position according to Fig. 15.3. No backward movement can take place from this because the superimposed surfaces 122 and 126 run almost exactly radially to the central axis of rotation 136 of the partial cylinder rib 96. Otherwise, they are at a distance 135 from this axis, which has the greatest possible extent in the central spar design, so that even relatively small holding forces of the positive connection are sufficient to prevent rotation about the partial rib axis 136.

In addition, the connection areas can be made with relatively narrow tolerances and still have slight unevenness distributed over the length, so that the so-called seizure can take place because of the joining of two light metal parts. In view of the fact that the longitudinal extent of a scaffold floor 45 is generally over 2 m in length, there are also sufficient wings which, as a result of dimensional tolerances, can lead to plastic deformations of their edge regions which cause cold welding. This is also secured by the hook-in connection at the bottom, at a considerable distance from the hook formations.

The above explanations show that the floor profile parts contain longitudinal seam / butt joint areas which are designed as sweat-free, screw-free and rivet-free hook-in and under-grip joint structures. The mutually associated joining areas on both floor profile parts 51, 52 have the operating forces and the cohesive forces supporting and transferring, superimposed pressure surfaces which are at least in substantial areas normal to the main forces. As can be seen, the central spar is formed by two longitudinally oriented extruded profile parts, also designated with partial box profiles 81, 82, with partial spar walls, that is to say partial spar structures, and has sweat-free joining structures.

As can be seen, the scaffold floor 45 is formed with two floor profile parts 51, 52 that are the same except for the joining structures, and an integrated, upright oriented box profile is formed in the outer longitudinal edge area. In the inner connection area of the scaffold floor 45, engagement profile designs are formed on the inner edge area of each floor profile part 51, 52, so that when assembled, a box profile with an upright orientation results. Thus, the scaffold floor 45 is equipped with three box-like spars that are oriented vertically.

The joint connection elements can also be designed in a different spatial arrangement and design in a similar or modified form in accordance with the main forces arising from the usage loads. The joining part longitudinal connection can also be secured against opening with a form-fitting insert part engaging on both bottom profile parts 51, 52. As can be seen, merging inclined surfaces and associated snap-in hook surfaces are provided for a sweat-free, assembly-friendly design. The cross-sections of the cantilever-like bending legs are designed in such a way that the elastic stroke of the toothing is matched to the formation of the insertion bevels. Target bending zones can improve the assembly and usage conditions. Further main force support surfaces can also be provided.

10.1 to 10.5 show how the entire running surface 55, except for its small longitudinal ribs 317, ensures a non-slip surface by means of bulges, edge designs and the like. These figures illustrate the special design of the tread. Openings or holes with raised edges are created. 10.1 shows a left corner of a scaffold floor 45 with a hook 46.2 in plan view. Under a smooth surface area 414 at the edge of the running surface 55, an upright edge spar 455 is formed in a manner not shown, of which the dashed lines 312 indicate the walls. The tread 55 has smooth surface areas 414 and 415 which can be located above the spars or the web-like T-ribs 481 shown in other figures. Rib regions 416 provided with longitudinal ribs 317 are created between the smooth surface regions 414 and 415. The ribs 317, as can be seen in particular from FIG. 10.2, are designed with inclined side walls 318 and upper side partial cylinder surfaces 319. They have a height 320 above the base 321 and a distance 322 from one another. The perforations 325 are designed as oval holes and, when punched out, are formed with bevelled edges 328 running all around, the edge transition lines 329 of which can be seen in FIG. 10.4. The embossing of the edge 330 results in distortions 331 of the ribs 317, as can be seen from the oblique lines 331 in FIG. 10.5 and as they are Anti-slip edges 332 from FIG. 10.2 and anti-slip edges 333 from FIG. 10.3 can be seen. The openings 325 have a width 334 of approximately 8 to 10 mm and a length 335 of approximately 15 to 25 mm. The edge elevation 336 relative to the base area 321 is approximately 3 to 5 mm. The punching process initially results in sharp-edged opening edges which, over time, are slightly worn off at the sharpest points, but also offer sufficient resistance when walking on the scaffolding floor even after prolonged use, even when it is raining or other moisture has got onto the scaffolding floor. The punched-out areas on the one hand reduce the weight of the scaffold floor, but above all there are ventilation openings and surface roughness to prevent the shoes from sliding off.

If you want liquid to drain through the openings, you can press the edges - as is known per se - at least in some areas. Due to the otherwise provided longitudinal ribs 317, however, liquid is adequately held or drained on the scaffolding floor in such a way that safe walking is ensured even in the presence of moisture.

11 to 13 illustrate the relationship of the scaffold floor 45 in a plan view of one end according to FIG. 12, an overall section with a simplified 11 and a somewhat larger section of the two floor profile parts 51 and 52 according to FIGS. 13.1 and 13.2.

13.1 and 13.2 show the left part of the scaffold floor 45 in FIG. 11, which is produced as an integral floor profile part 51 in the extrusion process with thin walls. 13.2 shows the right part of the scaffolding floor 45 with the floor profile part 52. A floor plate 454.1 or 454.2 is formed in each case, the smooth surface areas 414 and 415.1, 415.2, 415.3 and rib areas 416 or 416.1, 416.2 and 416.3 provided with longitudinal ribs 317 Has tread 55 on the left floor profile part 51 and 416.4, 416.5 and 416.6 on the right floor profile part 52.

Edge bars 455.1 and 455.2 are formed in one piece on both edges. A central spar 456 is formed with the partial spar structures 457 and 458. These have rear gripping and insertion structures 460, which are formed by upper part-cylinder groove parts 461 and part-cylinder ribs 96. At a roughly dimensioned distance 463 below are the longitudinal rib engagement structures 464, which are formed with the aid of two engagement legs 465 and 466. These have the snap hook surfaces 467 and 468.

As described with reference to FIG. 15, they result in an approximately trapezoidal central stringer 456 with vertical walls 83 and 84 converging downwards. The lower surface 472 lies at a distance 473 below the lower surface 474 of the base plate 70. This distance 473 is about the thickness 475 of the lower horizontal leg 212 of the cross-connection cap 54 is less than the distance 485 to the inner support wall surface 476 of the bottom wall 63 of the two side rails 455.1, 455.2, so that when the slot 243.3 is inserted and the lower leg 212 of the C-shaped cross-connection cap 54 is inserted. The lower surface 472 lies above the lower leg 212 of the cross-connection cap 54 and the inner receiving wall surface 476 in the spar 455 below the outer surface 239 of the lower leg 212 of the cross-connection cap 54, so that they can be welded to one another directly at suitable accessible locations in the edge regions . Between the side rails 455.1 and 455.2 and the center rail 456 two approximately equally spaced auxiliary reinforcement structures 480 are formed in the form of T-ribs 481 with horizontal bottom flanges 482, the bottom surfaces 483 of which are at the same height as the bottom surface 472 of the center rail 456 so that they lie similarly on the inner surface 242 of the lower leg 212 of the cross-connection cap 54 and can be welded to the cross-connection cap 54 at several easily accessible locations and corners to increase the rigidity.

In the rib regions 416 .. of the running surface 55, the openings 425 are uniformly distributed over the entire surface, but are offset in the rows relative to one another, as indicated at the top left in FIG. 12.

In a preferred embodiment of the scaffold floor 45, the end profile part is formed with a box-like hollow profile 515. This extends over the entire width of the scaffold floor 45 and thus completely covers the side rails 455.1 and 455.2 and the central rail 456. The front hollow profile 515 is preferably formed with a section of an extruded light metal profile and has a substantially rectangular cross-section, the outer surfaces and the inner surfaces of the wall parts 517.1 to 517.4 extending over the entire width of the scaffold floor 45 being substantially parallel are trained to each other. The upper insertion leg 518 and the lower insertion leg 519 are formed in one piece with the hollow profile 515 on the wall part 517.4 facing the scaffolding floor. These run parallel to one another and parallel to the outer surfaces 521.1 and 521.3 of the wall parts 517.1 and 517.3. The outer surface 524 of the upper insertion leg 518 and the outer surface 525 of the lower insertion leg 519 are at a distance 527 from one another which is equal to or slightly smaller than the distance 531 between the lower surface 474 of the base plate 70 and the inner surface 486 of the lower flanges 482 of the T- Ribs 481. In this embodiment, the bottom are Surfaces 483 of the lower flanges 482 of the T-ribs 481, the bottom surface 129 of the central spar 456 and the lower outer surface 141 of the side rails 455 in a common plane, so that the distance 473 between the lower surface 474 of the base plate 70 and the lower surface 483 of the lower flange 482 and the distance 485 between the lower surface 474 of the base plate 70 and the lower outer surface 141 of the side rails 455 is the same. The distance 533 between the upper outer surface 521.1 and the lower outer surface 521.3 of the hollow profile 515 is the same or slightly smaller than the distance 534 between the running surface 55 of the base plate 70 and the lower surface 483 or the outer surface 141 or the base surface 129.

The upper insertion leg 518 and the lower insertion leg 519 have a depth 536 and 537, respectively, which are designed according to the load, insertion and secure connection conditions. In order to enable the hollow profile 515 with its upper or lower insertion legs 518 and 519 to be inserted into the scaffolding floor profile, suitable slots 541 or recesses 542.1 and 542.2 and 543 are provided in the upper and lower insertion legs 518 and 519, these in their spacing and their slot or recess width to the spacing of the T-ribs 481, the vertical walls 83 and 84 of the central spar 456 and the inner walls 61 of the edge spars 455 and their thickness are designed accordingly. Openings 546 and 547.1 and 547.2 are provided in the area of the recess 542.1 assigned to the center rail 456 and the recesses 543.1 and 543.2 assigned to the side rails 455.1 and 455.2, which serve to drain off fluid media, for example water.

At the transition from the insertion legs 518 and 519 to the wall parts 517.1 and 517.3, the outer surfaces 551 and 552 are provided, which are formed at an angle of approximately 45 ° to the horizontal outer surfaces 521.1 and 521.3. The outer surfaces 551 and 552 merge into the outer surfaces 524 and 525, forming a stop edge 553 and 554. The insertion legs 518, 519 of the hollow profile 515 are inserted into the scaffold floor profile part until the end edges 557 of the base plate 70 and the end edge 558 of the lower flanges 482 stop against the stop edge 553 or 554. At the transition from the insert legs 518 and 519 to the wall parts 517 and 518, however, instead of the stop edges 553 and 554, narrow vertical stop surfaces forming stop shoulders can be provided. These measures create defined position and installation conditions. A defined orientation and positioning of the hollow profile 515 with its insertion legs 518, 519 can also be achieved by placing the vertical outer surface 521.4 of the vertical wall part 517.4 of the hollow profile 515 on the in one plane lying end faces 569.1 ... 5 of the outer and inner walls 64, 61 of the side rails 455, the T-ribs 481 and the vertical walls 83, 84 of the central strut 456.

The advantageous design of the outer surfaces 551 and 552 improves the welding conditions when forming the weld seams 559.1 and 559.2, by means of which the hollow profile 515 is firmly connected to the scaffolding floor profile part in the region of its upper and lower insertion legs 518, 519. The lower insertion legs 519 can additionally or alternatively be welded to the longitudinal end edges of the lower flanges 482 of the T-ribs 481.

In the embodiment shown in FIG. 18, the hooks 46.4 or 46.5 and 46.6 are fastened to the wall part 517.2 of the hollow profile 515 by means of welding. For this purpose, the hooks 46.4 to 46.6 are cut at the upper and lower ends of the vertical wall part 517.2 at an angle of approximately 45 ° to the horizontal in order to improve the welding conditions when the weld seams 566.1 and 566.2 are formed.

The cross-sectional design of the hooks 46.4 to 46.6 differs from the exemplary embodiment described above under FIG. 7 by a different wall design and a smaller cross-section of the lower recess 562.

The wall part delimiting the lower recess 562 to the hanging mouth 227 is no longer designed to be straight and parallel to the inner wedge surface 273, as shown in FIG. 7, but instead the wall part 563 initially runs parallel to the inner vertical jaw wall 272 and opens approximately the height of the transition from the inner vertical jaw wall 272 to the inner wedge surface 273 into a wall part 564 parallel thereto. This wall part design is advantageous in terms of constant wall cross-sections in the manufacture of the hollow profile part 515 in the extrusion process. The remaining interior design of the lower recess 562 is identical to the wall part 517.2, with the exception of a somewhat larger radius of curvature at its upper end. The upper support part recess 232 and all outer contours are designed identically to the outer contour of the hooks 46.3.

Just like the hooks 46.3, the hooks 46.4 to 46.6 are formed from short sections of light metal extruded profile parts, the hooks 46.5 and 46.6 having a greater width than the hooks 46.4. The contact surface 228 of the middle hook 46.6 lies in the same plane as the contact surface 549 of the hook 46.4 or 46.5 or slightly above.

The upper boundary surface 263 of the hooks 46.4 to 46.6 is at a distance 567 from the upper outer surface 521.1 of the upper horizontal wall part 517.1 of the hollow profile 515 and the lower boundary 264 is at a distance 568 from the lower outer surface 521.3 of the lower wall part 517.3.

In the exemplary embodiment shown in FIG. 19, the hooks 46.4 to 46.6 are formed in one piece with the hollow profile 515. The end profile formed in this way is also formed from a section of a light metal extruded profile part corresponding to the width of the scaffold floor 45, the hooks 46.4 to 46.6 being formed by cutting off corresponding areas of the end profile, for example by milling.

The embodiment of the scaffold floor 45 described in FIGS. 16 to 19, with its end profiles each designed with a box-like hollow profile 515, has the advantage of increased torsional rigidity of the entire scaffold floor 45 with simple manufacture and assembly as well as weldability of the associated profile parts.

An important part of the description is given below:
The scaffold floor (45) has floor profile parts (51, 52) oriented in its longitudinal direction, which are designed as light metal extruded profile parts and which are connected to one another along at least one internal connection point. Furthermore, the scaffold floor (45) has end connection means for its floor profile parts and suspension aids. The floor profile parts (51, 52) contain longitudinal seam / butt joint areas which are designed as sweat-free, screw-free and rivet-free hook-in and under-grip joint structures. According to an alternative solution, the scaffold floor (45) is formed with two longitudinally oriented extruded profile parts, which are designed the same except for the joining structure. An integrated, upright oriented box section is formed in the longitudinal edge area of each floor section part (51, 52). Furthermore, in the inner edge area of the scaffold floor (45) forming the inner edge area of each floor profile part (51, 52), engagement profile designs are provided which, when assembled, form a box profile with an upright orientation.

Reference symbol list:

30th

stalk

31

Perforated disc

32

Support bolt

34

wedge

35

Wedge head

37.1

Vertical leg

37.2

Vertical leg

38

Support edge

45

Scaffolding floor

46

Hooks

46.1

Hooks

46.2

Hooks

46.3

Hooks

46.4

Hooks

46.5

Hooks

46.6

Hooks

47

Muzzle

51

Floor profile part

52

Floor profile part

53

Center seam

54

Cross connection cap

55

Tread

58.1

Side surface

58.2

Side surface

59

Thickness of 46

60

Edge profile

61

Interior wall

62

Round corner

63

Bottom wall

64

Outer wall

65

Top wall

66

lower outside corner

67

Partial cylinder rib

68

Outer joint surface

69

Rectangular groove

70

Base plate

71

Wall thickness

72

Corner rib

73

Centering rib contact surface

74

Centering rib

75

Layer centering room

76

External boundary area

77

Inner boundary surface

78

Height of 58/60

79

Horizontal width of 60

81

Part box profile

82

Part box profile

83

Vertical wall

84

Vertical wall

85

Under-engagement element

86

Under-engagement element

87

Upper engagement element

88

Upper engagement element

89

distance

90

thickness

91

Partial cylinder groove

92

Cylinder boundary wall

93

Cam rib

94

Rising surface

95

End cylinder surface

96

Partial cylinder rib

97

Bottom surface

98

Cantilever

99

length

100

Vertex

101

Final round

102

distance

103

distance

104

Interior wall

105

Engagement surface

107

Cantilever connection

108

free space

110

Hook arm

112

Profile floor line

113

Connection area

114

lower wedge leg

115

Intervention space

116

Safety arm part

117

Connection cantilever

121

Engagement prism profile

122

Security area

123

Insertion bevels

124

Insertion bevels

125

Engagement hook

126

Rest area

128

Connection area

129

Floor area

135

distance

136

Central axis

138

Inner surface

139

Inner surface

141

Outside surface

210

Vertical wall from 54

211

Thigh

212

Lower leg

213

distance

214

Face

215

distance

216

width

217

height

218

distance

219

distance

220

Fastener

221

Contact surface

225

Support part

227

Muzzle

228

Contact area from 46.3

231

Boundary surface

232

Support part recess

233

lower recess

234

Boundary surface

237

Vertical wall

238

Outside surface

239

Outside surface

241

The End

242

Inner surface of 212

243.1

slot

243.2

slot

243.3

slot

244

Slot width

245

Slot depth

246

Insertion depth

247

shoulder

248

Abutment surface

249

Height of 247

250

Fastener

252

Contact surface

253

opening

256.1

Bottom wall

256.2

Top wall

256.3

Back wall

257

Wall thickness

258

height

258.1

height

258.2

height

259

Wall thickness of 256

260

Abutment surface

261.1

Stop shoulder

261.2

Stop shoulder

262.1

lower cone outer surface

262.2

lower cone outer surface

263

Upper limit area of 265

264

lower limit

265

Support part

266

corner

267

Diagonal web

268

Vertical wall

269

lower recess

271

lower rounded surface

272

inner vertical mouth wall

273

Inner wedge surface

274

Wedge surface

275

Contact area of 270

276

Width of 275

277

Hook part

278

outer vertical mouth wall

279

Chamfer

280

lower tip

281

Hook area

282

vertical abutment surface

283

Rounding off

284

distance

285

Support part recess

286

Skew limitation

287

Top wall of 267

289

Interior wall

290

Connecting bridge

291

Node area

292

Support reinforcement

293

Measure

294

overall length

295

upper recess

297

Inner boundary surface

298

Support reinforcement

312

line

317

Longitudinal rib

318

Side wall

319

Top partial cylinder surface

320

height

321

Floor space

322

distance

325

Breakthrough

328

edge

329

Edge transition line

330

edge

331

oblique line / distortion

332

Non-slip edge

333

Non-slip edge

334

Width of 25

335

Length of 25

336

Edge elevation

414

smooth surface area

415

smooth surface area

415.1

smooth surface area

415.2

smooth surface area

415.3

smooth surface area

416

Rib area

416.1

Rib area

416.2

Rib area

416.3

Rib area

416.4

Rib area

416.5

Rib area

416.6

Rib area

425

Breakthrough

452

Floor profile part

454.1

Base plate

454.2

Base plate

455

Randholm

455.1

Randholm

455.2

Randholm

456

Mittelholm

457

Part spar structure

458

Part spar structure

460

Behind grip and insert structure

461

Partial cylinder groove part

463

distance

464

Longitudinal ribs behind the gripping structure

465

Meshing leg

466

Meshing leg

467

Snap hook area

468

Snap hook area

472

Bottom surface

473

distance

474

Bottom surface

475

thickness

476

Support wall area

477

Bottom wall

480

Auxiliary reinforcement structure

481

T-rib

482

Sub-flange

483

lower surface

484

Web width

485

distance

486

Inner surface

515

Hollow profile

517.1

Wall part

517.2

Wall part

517.3

Wall part

517.4

Wall part

518

upper insertion leg

519

lower insertion leg

521.1

Outside surface

521.3

Outside surface

521.4

Outside surface

524

Outside area of 518

525

Outside area of 519

527

distance

531

distance

533

distance

534

distance

536

Depth of 518

537

Depth of 519

541

slot

542.1

Recess

542.2

Recess

543

Recess

543.1

Recess

543.2

Recess 546 opening

546

opening

547.1

opening

547.2

opening

549

Contact area from 46.4, 46.5

551

Outside surface

552

Outside surface

553

Stop edge

554

Stop edge

557

Front edge of 70

558

Front edge of 482

559.1

Weld

559.2

Weld

562

lower recess

563

vertical wall part

564

Wall part

566.1

Weld

566.2

Weld

567

distance

568

distance

569.1

End face of 64

569.2

End face of 61

569.3

Face of 481

569.4

Face of 83

569.5

Face of 84

Claims (23)

Scaffolding floor with floor profile parts oriented in its longitudinal direction, which are designed as light metal extruded profile parts and which are connected to one another along at least one internal connection point and which is equipped with end connection means for its floor profile parts and with suspension aids,
characterized in that
The floor profile parts contain longitudinal seam / butt joint areas which are designed as sweat-free, screw-free and rivet-free hook-in and rear grip joint structures. Scaffolding floor according to claim 1,
characterized in that
the mutually associated joining areas on both floor profile parts have the operating forces and the cohesive forces supporting and transferring, superimposed pressure surfaces which are essentially normal to the main forces. Scaffolding floor according to one or more of the other claims,
characterized in that
the longitudinally oriented extruded profile parts have partial spar structures formed with partial spar walls and sweat-free joining structures. Scaffolding floor with floor profile parts oriented in its longitudinal direction, which are designed as light metal extruded profile parts and which are connected to one another along at least one inner connection point, and wherein box-shaped longitudinal reinforcing bars are integrally formed at least in both outer edge regions, and partial regions of the underside of vertical webs have lower horizontal flanges and cross-connection means and hook-in means which can be suspended in the associated scaffold support structure are firmly connected to the base profile parts on the two end faces,
characterized by the following features: - Two longitudinally oriented extruded profile parts are designed the same except for the joining structure; - In the longitudinal edge area of each floor profile part, an integrated, upright oriented box profile is formed; - In the inner connecting area of the scaffold floor forming inner edge area of each floor profile part, engagement profile designs are formed which, when assembled, form a box profile with an upright orientation. Scaffolding floor with floor profile parts oriented in its longitudinal direction, which are designed as light metal extruded profile parts and which are connected to one another along at least one internal connection point and are equipped with end connection means and suspension aids,
characterized by the following features: - In the longitudinal edge area of each floor profile part, an integrated, upright oriented box profile is formed; - At least a third upright box-like spar is formed with joining parts in the inner central region. Scaffolding floor with floor profile parts oriented in its longitudinal direction, which are designed as light metal extruded profile parts and which are connected to one another along at least one internal connection point and which is equipped with end connection means for its floor profile parts and with suspension aids,
characterized in that
a joint longitudinal connection is secured against opening with a form-fitting insert that engages both bottom profile parts. Scaffolding floor according to one or more of the other claims,
characterized in that
the joining structures have part-cylindrical longitudinal grooves and matching part-cylinder engagement ribs, and a spaced-apart longitudinal rib engagement structure is assigned to them. Scaffolding floor with floor profile parts oriented in its longitudinal direction, which are designed as light metal extruded profile parts and which are connected to one another along at least one internal connection point and which is equipped with end connection means for its floor profile parts and with suspension aids,
characterized in that
the scaffold floor is formed with only two longitudinally oriented extruded profile parts, which, apart from the joining structure, have the same design. Scaffolding floor according to one or more of the other claims,
characterized in that
In the area of the longitudinal center of the scaffolding floor, intermeshing longitudinal rib parts are provided, which are designed with merging inclined surfaces and snap-in hook surfaces. Scaffolding floor according to one or more of the other claims,
characterized in that
the form-fitting hook-in connection designed with sufficient cross-sections, preferably in the area of the tensile forces of the (occurring) moment in the connection resulting from the use load and at a distance from it, pressure support surfaces as well as a barb-like latching connection with at least one cantilever-like bending leg with a cross-section that points to the formation of insertion bevels and the elastic stroke of the toothing is matched. Scaffolding floor according to one or more of the other claims,
characterized in that
the cross sections of the snap-in connection parts are designed and arranged in the main bending zones of the bending limbs of the suspension elements designed as target bending zones free of use or at least low in load. Scaffolding floor with floor profile parts oriented in its longitudinal direction, which are designed as light metal extruded profile parts and which are connected to one another along at least one internal connection point and which is equipped with end connection means for its floor profile parts and with suspension aids,
characterized in that
Hooks formed by extruded profile sections with truss structure and plug-in pins are provided, the plug-in pins of which engage through suitable openings in the respective cross-connection caps covering the longitudinal bar profiles on the edge. Scaffolding floor according to one or more of the other claims,
characterized in that
the cross-connection caps are C-shaped or U-shaped components, the horizontal legs of which, optionally with slot-shaped notches in one of the joining parts, engage under surfaces of component walls of the base profile parts and are welded to these at access points. Scaffolding floor according to claim 12 or 13,
characterized in that
the middle safety hook is welded directly onto the vertical, smooth outer surface of the respective cross-connection cap, avoiding an insertion pin. Scaffolding floor with floor profile parts oriented in its longitudinal direction, which are designed as extruded, framed parts and which are connected to one another along at least one internal connection point with the following features: - The profile parts of the scaffold floor are made of light metal; - End connection means for the floor profile parts are equipped with suspension aids; - The end connection means extend over the entire width of the scaffold floor; - The end connection means are designed with box-like hollow profile parts of extruded profile sections; - The scaffold floor has at least three box longitudinal profiles in the assembled state. Scaffolding floor according to claim 15,
characterized in that
In the connection areas of the hollow profile parts of the scaffolding floor, recesses and legs or flaps form weld-electrode-accessible seam areas. Scaffolding floor according to claim 16,
characterized in that
the hollow profile parts are designed with mutually parallel insertion legs which can be inserted into the floor profile parts, the insertion legs resting at least partially on assigned inner surfaces of the floor profile parts. Scaffolding floor according to one of claims 15 to 17,
characterized in that
hooks formed by extruded profile sections with truss structure are provided, which are fastened to the end face of the hollow profile parts pointing away from the scaffolding floor by means of welding. Scaffolding floor according to one of claims 15 to 17,
characterized in that
Hooks formed by extruded profile sections with truss structure are provided, which are connected in one piece to the hollow profile parts. Scaffolding floor according to one or more of the other claims,
characterized in that
the longitudinal spars are upright rectangular spar profiles with rounded stacking ribs. Scaffolding floor according to one or more of the other claims,
characterized in that
the auxiliary reinforcement structures are in the form of T structures or angular structures which hang down. Scaffolding floor according to one or more of the other claims,
characterized in that
the spar structures in the edge areas have reinforcing material accumulations in the corners, which are designed as stack shifting protective ribs in their outer surfaces. Scaffolding floor according to one or more of the other claims,
characterized in that
In the plate areas of the running surface free of underneath webs and closed spar spaces, preferably oval perforations are punched out for weight reduction and slip protection, the edges of which are bent or embossed at least in regions.

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