WO2003083352A2

WO2003083352A2 - Light-weight scaffold board and method for producing the same

Info

Publication number: WO2003083352A2
Application number: PCT/DE2003/001048
Authority: WO
Inventors: Günter W. LÜTZE
Original assignee: Uti Holding + Management Ag
Priority date: 2002-03-30
Filing date: 2003-03-30
Publication date: 2003-10-09
Also published as: DE10391127D2; WO2003083352A3; AU2003236771A8; EP1490219A2; AU2003236771A1; US20070125601A1

Abstract

The invention relates to a light-weight scaffold board that is composed of covering layers of a thermoplastic or duroplastic material reinforced with fibers, fabric, or nonwovens, or that is composed of perforated sheet metal or sinkhole sheet metal and a light-weight plastic support core, and onto whose surface, in addition to a anti-skid structure, all necessary suspension fittings are molded. The inventive method of production allows production of the board in a single hot and cool pressing step.

Description

Light scaffolding panel and process for its manufacture

description

Scaffolding panels, planks or planks are currently made either from solid wood, from steel or from aluminum sheets and profiles, whereby attempts have been made to save weight for a number of years, instead of profiling the entire length and width of profiles 0 frames made of thin plywood panels, which are made weatherproof, insert, insert, insert, rivet, screw in, glue in, weld in or fasten in any other way.

In order to then hang the plates into the support elements of the rolling or facade scaffolding, which either consist of upstanding pins or bolts, strips or round tubes, depending on the 5 scaffolding system, metallic hooks, claws, round grooves or other suspension fittings are attached to the plates or frames, welded on, screwed or otherwise attached.

The plates are available in various lengths of approx. 100, 150, 200, 250, 300 and more and widths of approx. 15, 30, 45, 60 and more cm, which are then lined up and arranged one behind the other in the individual heights, usually each display the scaffold at floor level, suspended in the scaffold construction. In order to be able to climb a scaffold within the construction, different scaffolding panels are provided with access openings within the panel, which can be opened and closed if necessary.

To protect the craftsmen and to protect the environment from noise and dust and to avoid accidents, 10 to 15 cm high side protection parts 5 made of the same material, preferably wood, and at a corresponding height railing and, if necessary, tarpaulin behind it are at the level of the scaffolding panels or nets attached to the sides of the scaffold structure facing away from the building, which then, taken as a whole, result in the finished scaffold.

So far, the scaffolding panels, regardless of the material, have one disadvantage in common: the craftsmen who have to deal with them every day describe them - especially with the lengths of approx. 250 or 300 cm, which are usual in the main 0 - too difficult to lay , The laying and hanging work is still to be done by hand, despite the possible transport of the plate stack with cranes and other aids.

Previous attempts to use plastic materials such as foams and sheets or other compositions and combinations have so far failed either due to the lack of UV and weather resistance, the safety of the previously used adhesive bond or the lack of slip resistance. The plywood panels impregnated with phenol, which are inserted into the panel frames, do not have a long lifespan, often rot very quickly at the connecting edges and thus become a life-threatening hazard.

Furthermore, the lightweight plastics often have the property of having too low a modulus of elasticity without reinforcement, so that the deflection of the plates, for safety reasons at least in Europe with a 1 / 100th of the length is only achieved by considerable thickness of the panels or by complex reinforcements. The required low permissible deflection of the plates is due to the fact that with very often narrow plate widths, when lying side by side under load, there are stumbling points which lead to an increased risk of accidents.

5 ren.

Attempts to introduce frame structures made of metal, in particular aluminum alloys, to save weight have made little progress, but have not generally brought about a breakthrough in lightweight scaffolding panels.

Another problem is that there are several systems, with the suspension and with the exact one

10 plate lengths do not match, so that a variety of plate lengths and widths, plate thicknesses and types of suspension prevented the development of new systems and the use of new materials as well as the regulations of the professional associations and the standards. So far, this has allowed the use of plastic materials and thus possible smaller plate thicknesses and larger widths of the plates with corresponding upturns and folds with thinner plates.

15 material is not yet available, so that costly approval procedures hinder the rapid implementation of new developments.

Regarding the state of the art, it should also be said that composite panels and processes for their production from various materials, which consist of a support core as a spacer for the upper and lower cover layers, are known. The support core usually consists of foam, honeycomb,

20 boxes, boxes or other linear or staggered webs made of plastic, aluminum, glass, wood or wood fibers or paper, the cover layers made of wood, metal, thermosetting or thermoplastic plastics with or without reinforcement.

Likewise, there are those that are cold-glued or hot-glued or welded. The patent DE describes thermal connections between the cover layers and the support core

25 4208812 A 1, DE 19533394 A 1, the utility models DE 20005948 U 1 and DE 29809543 U 1. The reinforcement of thermosetting and thermoplastic cover layers with reinforcing fibers or fabrics is also known. Even heating elements between the different layers are used for the connection (WO 01/19937 A 1). This also applies to the connection with edge profiles that are placed on the composite panels, whereby the heating wires in strips made of hot glue or thermoplastic synthetic

30 are embedded (GM DE 29809542 U 1).

For the production of screeds for scaffolding, light metal honeycombs are glued in composite panels made of steel or aluminum sheet in one or more layers (GM G 9207297.6).

Edge closures for composite panels made of thermoplastic are made using hot press tools by pressing and fusing the top and bottom cover layers and sealing

35 seal of the material made to a single edge (WO 01/19604 A 1). These methods are state of the art, but are very time-consuming and therefore costly.

As already described, heavy screeds made of wood or steel with the appropriate edge reinforcements or fenders have been used as treads on scaffolding in general due to the prescribed load possibility, which can be achieved by impregnation, galvanizing or and / or painting and the attachment of other securing parts are processed. In all cases, the side protection has been mounted on the tubular frame as a separate side protection board.

The use of these materials means that the scaffolding boards are very heavy, difficult to transport and can only be assembled with considerable effort by man and machine. The slightly lighter aluminum scaffolding panel is barely affordable and prone to theft. Most scaffolding panels used to date are hazardous waste and expensive to dispose of after use.

The invention is therefore concerned with both the weight problem, as well as the problem of high costs and the development of a new manufacturing process which has the advantages of the easy deformability of the plastic as a whole, the light weight compared to wood, steel and aluminum and when using appropriate materials the combination of as many individual steps of production as possible.

Including patent applications DE 102 14 485.0, 102 15 606.9, 102 16 569.6, 102 17 1 18.1, 102 21 250.3, 102 25 439.7, 102 26 703.0, 102 40 384.8, 103 00 886.1 and 103 00 888.8, 5 is therefore in this Description of a .Light scaffolding plate 'shown, which using plastic honeycomb, foam or multi-wall sheets or a mixture thereof with welded, armored or non-armored cover layers and hot-formed edge closures created a lightweight, bracket and covering structure already comprehensive scaffolding panel, which by the price The conventional wooden or steel plank board almost corresponds and without problems, since it is largely made from a single thermoplastic material or from two materials with melting points that differ considerably from one another, and is fully recyclable, whereby the basic raw materials can be reused.

The plastic scaffolding panel, which weighs around a third of the weight of the wooden or steel plank board, is easy to transport and assemble, has already molded on the separately installed side protection if necessary and is permanently UV-resistant without further processing or impregnation and weatherproof and thanks to the structure embossed in the tread, it is non-slip and safe to walk on in any weather. A directly molded side protection also contributes significantly to the improved static strength of the scaffold panel at no additional cost, further reduces the transport weight to the construction site and saves considerable additional assembly costs. 0 As a supplement to the scaffolding panels, panels with a manhole are usually used, which generally have a much higher weight than the scaffolding panel, simply because of the frame and the hinges.

According to the flap of such a passage opening, the frame and the hinge running over all or part of the length or width of the frame and the flap is made entirely of the same material by its compression, the plate in the usual plate thickness, the Frame by fusing the plate material and the cover layers to a statically corresponding rebate profile, unless a more cost-effective solution with a light metal, preferably aluminum frame attached to the edges of the plate or embedded in the plastic is not recommended due to the length of the plate. O The hinge of the plate is permanently welded in or on by a thermal treatment of plate material with or without reinforcement in or on the cover layers of the flap and frame, so that this important access plate is lightweight and has the same height as the usual scaffolding plate and none selective increases as stumbling points. A revolutionary advantage over the usual handling, which saves assembly costs and offers greater security, especially in the case of smaller rolling or mobile scaffolding, is according to the invention also the firm connection of the four side protection parts to the scaffolding board and the inclusion of the access opening in this scaffolding plate. The static values of this frame construction can then also be used for the overall dynamics of such scaffolding types. The question of dewatering that arises here is solved by dewatering openings in the plate made by thermal deformation in the manufacturing process.

The panels can be colored permanently and weatherproof in any color. Labels and company advertisements can be permanently applied or applied by fleece printing embedded in the plastic, by hot stamping in the manufacturing process or simply by subsequent printing using screen printing or pad printing.

Scaffolding panels, planks or boards are usually hung directly into the crossbeams of the scaffolding or, if they are less thick, inserted, inserted or riveted into attachable frames. Depending on the scaffolding system, scaffolding plates or scaffolding plate frames have either screwed, attached or welded plates with claws or round grooves for hanging in upwardly open U-profiles and hanging on pipes, or plates with perforated cutouts for hanging in several on the Bolts welded or screwed on side by side.

Both the solid scaffolding panels made of wood and lighter panels made of perforated steel or aluminum have, based on the high material weight of the panel, a weight that is significant for scaffolding assembly even with half the usual scaffolding width of approx. 30 cm depending on the length - 5 Chen use of energy, especially for the assembly team, required.

The plate according to the invention no longer has this main disadvantage, namely the high weight of each individual plate, even in the case of double plate width, and can be used for any conventional scaffolding system with the specifically formed suspension devices. A disadvantage here is that a different form of suspension is required for each system, which leads to a variety of production. 0 This last problem was solved in such a way that the plate can only be produced in one or two different plate thicknesses and mainly in double or triple scaffold plate width of approx. 60 or 90 cm and two to three scaffold plate lengths with only a single suspension deformation of the plate ends , This suspension deformation, which results from a compression of the plate material, makes a precise fitting with the holes in the sift or bolt system, a precise fitting and clamping with the claws in the U-profile of the claw system and a precise fitting in the pipe system possible.

Due to the high scaffolding plate weights, customary two scaffolding plates with a width of approx. 30 cm can easily be combined with a length of 250 and 300 cm or more to form a plate of approx. 60 cm width, but also to much larger plates, and these with one Hanging device on the plate ends are pressed in one go. Another advantage is that these plates can be hot pressed in a conventional hot press both individually one after the other, and with a corresponding width of the press with several plate rows next to each other with the molded universal hangers including the upper and lower cover layers and any necessary edge closures , In this case, even in the case of longer lengths, statically required additional webs in the height of the plate thickness can also be welded into the support core material, so that the entire scaffold plate consists of a single, homogeneous material.

In addition, there is the universal application and the producibility in large quantities, both with plate presses and with double belt presses, which have the appropriate tools.

As a rule, there is no need for an additional frame for the scaffolding panel, since it is self-supporting even with long lengths and corresponds to the statically required conditions, whereby the structure of the thermoplastic reinforced edge closures and, if necessary, the insertion of an additional, also reinforced, web or with Large plate lengths of a round, square or rectangular tube or U-profile, also made of the same reinforced material or light metal, at the height of the support core in this or on the edge of the support core as an edge closure, all static requirements and in particular the requirements for the E Module covers.

In addition, damage to the scaffolding plate can be carried out in a simple manner with the soldering iron and thermoplastic repair material and, in the presence of a honeycomb 0 as the support core, no risk to the quality or durability of the plate is to be expected due to the limitation of damage to a few honeycomb tubes.

Another novelty in the reinforcement of the plastic top layers is the creation of a light sandwich panel top layer by laying on a perforated metal plate, which is either thermally connected on one or two sides with one or two thermoplastic layers or with a thermoplastic support core 5, so that either a perforated plate on one or two sides with a thermoplastic cover layer or a complete sandwich plate with one or both sides of perforated plate cover layers or a perforated plate encapsulating thermoplastic cover layers are created in a single hot and possibly cooling press pass.

The thermoplastic connecting layers from the honeycomb as the support core to the perforated plate can be placed, rolled, sprinkled or sprayed on either in the form of thermoplastic films or plates placed between the support core and the perforated plate or in the case of closed support cores or spacers in powder form. Even better is the use of honeycomb material, which already has an upper and lower full or partial hole cover during the manufacturing process, or else beads made of thermoplastic material at the edges of the holes, with the melting volume of which the perforated plate is then thermoplastic bonded to the honeycomb core. Such honeycombs can be produced in the required honeycomb panel thicknesses in the direct extrusion process and can also be included in the production process.

With foam material, so much material is melted during the hot pressing process that the firm connection to the perforated plate is established. In any case, the process leads to a light scaffold plate with one or two perforated metal cover layers or those made of thermoplastic coated perforated metal layers, which have a considerable load-bearing capacity and together with the support core provide good and sufficient static values.

The reason why a firm connection of the perforated plate is possible through the melting process without its thermoplastic sheathing is in this case the presence of edge depressions towards the center of the holes, which not only cover the perforated plate material during the melting process by hot gluing, but also by gripping the edge beads in full extent over the beads inwardly towards the perforated plate protruding perforated plate parts non-positively connects all holes of the plate without the thermoplastic material on the upper side of the cover layer can or must leak, be it a full coating of the perforated plate with thermoplastic Material is desired.

This makes it possible, with the height of the perforated plate or with the height of the perforated plate and the protruding edge recess, to dimension the thickness of the connecting layer as small as necessary and to save thermoplastic cover layer material.

The perforated metal cover layers can already have structures on the surface during their manufacture and can be provided on one or both sides with raised or recessed structures, eg. B. can also be provided with an anti-slip covering during pressing. Furthermore, a color design can also be achieved here by permanently coloring the thermoplastic material visible through the perforation, but also the perforated metal plate. This makes it possible, for example, for company products to be permanently labeled, which is just as good as theft protection as well as for advertising purposes.

An interesting solution to the problem with the perforated metal solution is to place the desired motif or typeface in the desired color as a plastic film or colored fleece, which, when heated, bonds to the rest of the top layer material on the surface and becomes visible through the perforations. 5 The cutouts in the perforated metal plates can have different shapes, e.g. Round holes, oval or box-shaped perforations, oblong or square perforations, with and without rounded corners or a mixture thereof, crescent, cross or diamond shape, are arranged in straight or staggered rows, diagonally staggered rows or the like, with the relatively free perforated area being approximately the same Half of the plate, but can also make up more or less. 0 With all hole shapes, it is possible to produce edge depressions or hole edge configurations that run conically towards the later support core and thus ensure that the thermoplastic material is placed around the existing beads or tapered hole edges during hot melting during the melting process and thus the perforated metal plates connects the thermoplastic material in a non-displaceable, homogeneous, body-locking manner. 5 Depending on the arrangement of the holes, the connection of the thermoplastic material from the top cover layer to the cover layer below the perforated plate and via this or directly from the top layer is created via the hole cutouts when the hole edge is not formed.

Although the perforated metal plate has a tight fit due to the formation of the perforated edge or within the thermoplastic connection or cover material, it can be used for special demands the connection between the perforated plate and the thermoplastic can be optimized by a special treatment of the cover material, for example with a primer (adhesion promoter) or a roughening, other treatment already during the rolling process, so that even strong bending and impact stresses of the light scaffold plate are permanently absorbed can. With the perforated metal plate, which already has a low bending strength in combination with a low material thickness and low weight, top values can be achieved even with a low overall panel thickness, which can otherwise only be achieved through massive use of material with high weights and panel thicknesses.

If the non-positive connection of the metal cover layer can be dispensed with when the light weight of the scaffolding plate is subsequently reduced, the direct connection of the primed metal layer or one with an adhesion promoter to the thermoplastic core is also appropriate. This also creates a weatherproof connection and when using structured sheets, the necessary slip resistance of the plates can also be achieved, which offers sufficient security with and without a structured plastic layer possibly additionally applied during the pressing process. The aforementioned deformations of the plates are also possible here.

Other additives in the thermoplastic material of the cover layers, but also of the support core, lead to properties that the base material does not necessarily have. Additives such as short or long glass fibers, glass balls, talcum, more wood, wollastonite, zinc oxide, polyester fibers, metal powder, mica, calcium carbonate and the like lead to greater rigidity, a higher modulus of elasticity, 0 influence the flexural or creep modulus, the hardness , dimensional stability under heat, tear and tensile strength, compressive strength, dimensional stability, density, alternating bending strength, thermal conductivity and melt viscosity, decrease in elongation, impact strength, notched impact strength, tendency to creep, shrinkage, thermal expansion, abrasion resistance, UV and weather resistance - density, the melt index, etc. 5 Also with this cover layer according to the invention, the light scaffolding panels can be laterally or all around upwards, downwards or on one side upwards, on the other side downwards directly side parts by folding or edging or otherwise in any length, can also be formed with recesses, so that either the finished products are created during the hot pressing process or in a second shaping process. In the solutions according to the invention described so far, the static absorption of the load-bearing capacities takes place mainly through the two cover layers connected to the support core and their reinforcement or the perforated metal sheets via the corresponding dimensioning of the height of the support core. In the case of the already used frame plates with inserted or attached thinner floors or the wooden planks mainly by dimensioning the height of the metal frame or the planks. 5 The solution to the static problem of absorbing the load-bearing capacities in a thin scaffolding plate without using a frame can also, as shown according to the invention, by including the 10 to 15 cm high side part, which is prescribed for scaffolding anyway, as a supporting web on one side and one On the other side, bevelled or folded at a height of 5 to 10 cm without the thickness of the panel being unnecessarily expanded. The covering and side or part thickness can also be kept very low, which also has an impact on the weight of the square meter. The only problem is the stackability of the panels for storage as well as for transport, which was not only solved with the upward and downward folding of the side protection part and the supporting web, but also with the alternative possible upward folding on both sides. In both cases, only a slightly sloping stack is required to create vertical stacks; transverse storage is also possible without significantly greater surface loading, since there is no storage or transport area for the side parts.

In addition, the time saving during loading and in particular the scaffolding assembly must also be mentioned, which is not insignificant, so that the handling and assembly costs can be significantly reduced again. This also achieves a considerable weight reduction. It weighs the scaffolding lightweight panel per running meter of scaffolding length with a panel thickness of up to 15 mm only including the side panel 3.5 kg, with a panel thickness of 20 mm only 4.2 kg, a reduction compared to previously customary scaffolding panels to a fraction of the weight. The same applies to other dimensions. Taking into account the omission of the additional side protection part to be transported or assembled, the weight reduction is much higher.

Since, in addition to the lower side protection part, additional toe boards or other protective parts up to a height of 100 cm may be required on the side of the plate that protrudes from the building, it is also possible to form the side protection part up to this height on the lightweight scaffolding plate without the stackability suffering as a result. But it is also possible to use the extension of the side protection part in an independent part and to attach it again in a removable manner using locking pins or other security measures.

This even goes so far that such an attached side protection part shields a larger part or the entire side of a full scaffolding field facing away from the building. According to the invention, the lightweight scaffold panel or parts thereof then consist of colorless, translucent thermoplastic material.

In order to achieve a dust-proof full cover, also in the area of the connection points to the next panels, the outer cover layer of the side protection part can be provided with an overlapping overlap to the nearest side, but also lower or upper panel, which resiliently and permanently on the other panel is set depressingly. This is permanently possible with a suitably aligned and hot-pressed glass fiber-reinforced material such as the plate with pre-tension.

In particular, the side protection parts and possibly attached side parts can also be provided with a permanent inscription in the thermoplastic layer, also for advertising purposes and for identification, whether by printing on a fleece or by attaching a hot-pressed structure or similar as already described.

In addition to the advantages and possible solutions already mentioned, in addition to the perforated metal sheet solution, there are also other sheet metal deformation types that offer a coherent connection of the thermoplastic plastic connection or cover layer to the thermoplastic support core. For example, a sheet metal plate can be provided with continuous beads or beads are obtained or attached to the support core in a rational welding process towards the support core, spread over the sheet metal surface.

It is also possible to provide sheet metal with a thin material thickness with beads or beads or other structures and to attach c-shaped, L-shaped or U-shaped webs to the two side parts, or to design these sheet-metal pockets and to lock them in these sheet metal sleeves. Glue these support cores made of honeycomb or foam with closed pores and then deform or otherwise provide the two ends with the necessary suspension fittings such as round grooves, claws or perforations.

In the process for producing the "lightweight scaffold plate", the hot and cooling press

10 course, due to the different properties of the materials, a special layering can be carried out, which is reflected in the corresponding patent claims.

Viewed overall, the invention opens up a new type of scaffolding planking, securing and design in addition to saving weight-related transport costs, saving huge assembly and handling costs. The usual dust protection planking with easy to damage

15 gender film, which can usually only be used a few times or even once, can be manufactured more stably and cost-effectively using reusable side cover plates.

The "lightweight scaffolding panel" with perforated metal cover layer according to the invention becomes a homogeneously bonded panel, in particular if a complete covering of the panel with perforated edge depressions, which are encompassed by the thermoplastic connecting layer, is dispensed with. Thereby

20 In addition to the normal hole edge recesses of a countersunk hole or a countersunk hole on both sides, there are also tab holes, slot bridge holes, nostrils or other types of holes in which the thermoplastic material of the cover or connecting layer engages behind the perforated plate in a number of places without closing the full surface of the cover plate capture, be attached and that in the form of round holes, square holes or elongated holes, hexagonal or polygonal holes, diamond holes

25, triangular hole, stem hole or keyhole shape, with rounded corners or angular.

The individual recesses or perforations in the metal sheets can be made on the plate or on the band of steel, aluminum or other metal or thermosetting plastic provided for later division by punching, drilling, milling, sawing or other cutting, combinations thereof or other processes in all possible cell sizes are attached.

30 In order to get by with a perforated metal plate material that has only a low material thickness, it is possible to use thermoplastic plate or foil material that has tightly arranged, endless glass fibers along the full length of the plate. This material can also be used in several layers and, alternately laid lengthways and crossways, can have the same results as a fabric reinforcement.

35 For the manufacture of the plates in the plate or belt press, a flexible closure or a partial deepening of the thermoplastic surface in the hole area on below the upper edge of the sheet, for example to produce a structure for the slip resistance, the hot press and / or the cooling press or flat plate tool, which is passed through or passed through by both presses with the material to be pressed, with a heat-resistant, rubber-like, sealing and subsequently expanding, separable layer what causes the thermoplastic material of the connecting or covering layer to be pushed back towards the underside of the perforated plate at the perforated locations, so that the upper side of the perforated plate remains free of material. In addition to other effects, this also leads to material savings.

Another way of making the lightweight scaffolding panels from a single material, both for the cover layers and for the support cores and all the necessary fittings and auxiliary parts, is to use a homogeneous, polymeric monolith.

EP 0531473B1 refers to a process for producing a homogeneous polymeric monolith, in which a structure of oriented polymer fibers is kept at an elevated temperature, about 5-2 ° C. below the melting point, and some of the polymers are melted and then melted within one predetermined time window compressed or compressed and then cooled again to ambient temperature by standing in the air. These are melt-spun homo- or copolymer fibers, which then have a density of at least 90% of the original fiber density as a compressed product.

An additional invention is now the possible omission of glass fiber or other reinforcement with similar reinforcing materials or the use of perforated metal sheets as top coverings for light panels which do not correspond to the main thermoplastic material of the panels and only contribute to the reinforcement of the panel by using a the aforementioned method specially prepared thermoplastic material. This is done by using a thermoplastic material consisting of the main thermoplastic material, which is modified in several layers with bidirectional molecular alignment. This brings considerable weight savings for the outer layers from highly oriented reinforcement elements of the same material with the same stiffness and strength as with glass fiber reinforcement. By dispensing with a non-thermoplastic reinforcement material, the entire lightweight panel is absolutely recyclable.

A further weight saving results when the plates are subjected to high loads, even if the perforated metal sheets, with bag-like or similarly countersunk holes, are embedded in the cover layers as rivet-like connected coverings or as simple perforated sheets, also in a considerably thinner thickness than is otherwise required ,

Another new feature is the use of this material for the support core, i.e. for the manufacture of honeycombs, cones, boxes or bars. Here, for example, in the case of the honeycomb, the honeycomb cross section or in the case of other supporting components, the distance between the individual spacer bodies from one another can be doubled or quadrupled without the load-bearing capacity of the plate being impaired. It is also possible with this processed material, whose structure has been changed, while maintaining the dimensions which are usually required, to reduce the material thickness and thus to make the lightweight panels even lighter. 5 By producing the support components such as tubes (also connected to honeycombs), cones, webs or corrugated webs, boxes or the like, for example in the deep-drawing or hot-pressing process, considerable weight savings in material can be achieved while increasing the strength and, above all, it is then possible to the further processing of the material to form a complete lightweight panel while largely maintaining the necessary deep-drawing or hot-pressing o temperature, the cover layers of the same material then with the required pressure to thermally press on the support core, even without a nonwoven or adhesive intermediate layer, and to provide the pressing piece simultaneously or subsequently with the required structures, for example edge closures or a non-slip structure and fittings, made of the same material. The thermoplastic material that remains on the top or bottom of the tubes or cones, webs or corrugated webs, crates or the like in the deep-drawing or hot-pressing process of the same or considerably greater thickness than the material of the actual support body then serves at the same time to reinforce the cover layers and serves here at the same time in the case of linear longitudinal or transverse alignment to a further, substantial improvement in the rigidity and flexural strength and thus makes it possible to achieve an optimal, weight-favorable use of material, which is of course reflected in the price.

Another inventive consideration is to find a simple and inexpensive process technology which enables a coherent connection of the perforated metal plate with a thermoplastic and a statically effective base layer as a support core in a simple manner.

In the manner described below, the support core, which consists of either the known thermoplastic plastic honeycomb, tube, cap, box, web, corrugated web or similar structural panels or also plastic foam panels, is directly in one production step hot-pressed without an intermediate layer with one or two perforated sheets and cooled under pressure, so that the support core material deforms itself into the shapes of the perforated sheet required for the positive connection. 0 All properties that are expected from the later visible top layer, e.g. Color, weather, temperature and UV resistance, elasticity, tensile and bending properties, as well as thermoplastic deformability under pressure, etc., are brought here by the thermoplastic support core, which also has a large positive influence on the strength and bending properties, and in particular the overall weight , 5 An additional, special property of the perforated metal sheet, namely the existing countersinking or tapping of the holes and thus the possibility of a smooth surface of the cover layer, which is then made of metal and plastic, also provides the uniform, perfect coherent clawing and connection of the sheet Plastic material in the form of the variety of rivet heads safe. 0 The final thickness of the lightweight scaffold plate can be determined by the height of the support core before pressing. Inaccuracies and tolerances of the support core plates are compensated for by the specification of the final height, as are slight inaccuracies in the flatness of the perforated metal sheets or bones that arise during perforation.

Furthermore, by increasing the height of the support core material, the thickness of the connecting thermoplastic layer and thus the stiffness and flexural strength, that is to say the stability of the finished plate, can be influenced.

Due to the solid inclusion of the metal in the chemically resistant plastic in the perforated area, it is even possible to subsequently refine the metal on the visible surfaces, such as anodizing aluminum, so that these surfaces are also protected during pressing can be dispensed with. Through the choice of hole shapes and sizes as well as their linear or staggered arrangement in the perforated metal sheet and also through the depth of the hole counters, both the hole sizes of the honeycomb, box or tubes, as well as the distance of the webs or cones etc. in the support core can be fully taken into account and a coherent, long-term stable connection can always be achieved. In particular, the weight of the finished plate can be matched to the application, so that optimal results are achieved in the lightness of the plates.

The light scaffold plate also has other uses as a light plate. It is not only suitable as a scaffolding panel, but also as a floor and formwork panel and for a variety of other panels and load-bearing profiles that are subject to rigidity and bending strength. Such panels can be used as floor panels, shelf panels, insulation panels, soundproofing panels and panels for other areas of application which have to meet both static requirements and decorative purposes.

The plate can perform another important function using a gas-permeable support core and a gas-impermeable film fully encasing it as a vacuum panel. 5 Methods of manufacturing the plate are already discussed at various points in the description. However, the individual process steps are described again in detail in the following:

In a stationary plate press, the .Light scaffolding plate made of a thermoplastic support core or other spacers that determine the color of the outside of the plate in overdimensioned thickness and the necessary width and length in the middle, above and below only a plate, a perforated plate or a countersunk perforated sheet is laid in a single hot pressing and cooling pressing process with temperatures for heating and cooling which are matched to the different melting points of the materials and the material thicknesses, in direct contact with the hot and / or subsequently hot plates of the press and / or the possibly To produce the required structure, it is necessary to place the perforated plate with the holes in the direction of the side facing away from the lower press plate on a structured separating film and to place the support core thereon in an oversized thickness. The second perforated plate is then overlaid with the hole countersink in the direction of the support core and pressed with the structured separating film additionally placed in the direction of the plate and thermoplastic bonded to the panel previously determined in the later thickness and color. In the subsequent cooling-pressing process, the plate receives the final, sunken or raised surface structure and shape, as well as additional formings such as claws, grooves and other suspension fittings, closures, reinforcements, inlays and web inclusions, edges and perforations when using the appropriate molding tools.

The method using an additional thermoplastic cover layer between 5 perforated sheets and the support core is analogous, with the difference that the thickness of the support core approximates the final thickness of the plate with its cover layers and only the cover layers between the perforated or countersunk perforated sheet and the support core above and are inserted below. For the application of lettering, the additional inscription of prepared lettering and motifs made of or on their color reflecting plastic film or fleece takes place directly above the o lower or below the upper perforated or countersunk perforated sheet layer before the pressing. In order to press 'Lightweight Scaffolding Sheets' in several units at once in one press run with the stationary press, these must be inserted next to or one after the other until the entire available press area is filled and at the same time hot pressed and cooled.

During hot pressing, the thermoplastic top layer and / or the surface

5 Before the liquid thermoplastic mass is formed from the support core, the holes in the perforated or countersunk perforated plates, the depressions in the plate are filled in and the subsequent cooling forms the firm rivets or connecting pins required for the physically positive connection or clawing to form the flat plastic layer.

An improvement in the stability, the modulus of elasticity and the UV and weather resistance of the plate is achieved by a greater strength and change in the material properties of the cover layer and / or the support core, and by an enlargement or reduction in the hole size and / or the lowering of the hole and / or influenced by staggered arrangement of the hole in the direction of the subsequent stress on the scaffolding plate.

To further rationalize the manufacturing process, the continuously running extrusion

15 upstream in the manufacture of the honeycomb support core, with or without a flattened plate surface or a continuous deep-drawing process for a support core in a tube, hat, box, web, corrugated web or similar structure. The introduction of slits in the honeycomb structure can be further upstream. With the subsequent hot pressing of the cover layers of the same or different thickness, directly unwound from the coil or inserted as a plate in the

20 continuous or plate press cycle processes, with or without intermediate layers of fleece, fabric or adhesive layers, possibly also from the coil, with or without the application of recessed or raised structures made of structures attached or moving between the materials and the rollers or press plates. Separating foils for top layers such as an anti-slip structure, and / or the application of the perforated metal or countersunk metal or similar layers, notches

25 slits, perforations or the like, the subsequent edges and fitting formation as well as the trimming or cutting to length while maintaining or introducing the required, precisely controlled melting temperature on the surfaces to be melted and the material to be melted underneath and the subsequent cooling in the subsequent cooling press, each under electronic or manual control and precise Beac -

30 temperature window required for the material, this process can be done in a single, continuous process.

A "light scaffold panel" with a fiber-reinforced cover layer is produced in the same way, with only the fiber-reinforced thermoplastic cover layer being introduced instead of the normal thermoplastic cover layer and the perforated or countersunk perforated plate being dispensed with.

35 Information on the individual components and functions of the plate and the individual steps of the production process can be found in the supplementary sheets "To the drawings".

₄ o Light scaffolding panel and process for its manufacture

To the drawings

Figure 1 light plate in section

01 top layer

02 support core

03 lower cover layer

04 Fusion of top layer / support core

05 Edge lock

06 Fusion of edge seal / top layer

Figure 2 perforated sheet metal top layer (cuts)

11 visible surface of the perforated sheet top covering

12 perforated sheet

13 countersunk hole with hole edge recess

14 thermoplastic layer, recessed

15 thermoplastic layer

Figure 3 21 visible surface of the perforated sheet top covering

22 perforated sheet

23 countersunk hole with hole edge recess

24 thermoplastic layer at the level of perforated plate surface one level

25 thermoplastic layer

26 possible anti-skid structure

Figure 4 31 visible surface of the perforated sheet top covering

32 perforated sheet

33 Hole edge recess on both sides

34 One layer of thermoplastic layer at the height of the perforated sheet edge

35 thermoplastic layer recessed

Figure 5 41 perforated plate above

42 support core

43 Connection of the support core to the cover layer and the enclosed recess

44 Connection of the support core to the cover layer and perforated plate sheathing

45 Flat rivet-like connection thermoplastic to perforated sheet edge recess

46 possible structure

47 plate-like surface of the support core

48 honeycomb bridge with bead

49 perforated plate below

Figure 6 51 perforated sheet

52 tapered reduction of the hole (bag)

53 thermoplastic connecting material

Figure 7 54 perforated sheet

55 holes

56 thermoplastic connecting material

57 Sheathing with thermoplastic material

Figures 8 + 9 perforated sheet types in connection with thermoplastic

61 Cut rag perforation

62 Cut nostril

63 Top view of rag punch

64 Top view of the jetty

65 Top view of nostril 66 Top view of the upturned nose

67 staggered arrangement of rag hole lines

68 lapped bridge

69 Thermoplastic layer recessed to the web

70 Thermoplastic layer in level with the top edge of the web or nose

71 thermoplastic layer thermoformed under pressure

72 upturned nose

Figure 10 81 Section slot bridge perforation

82 Section slot bridge

83 Section of perforated sheet surface

84 Thermoplastic layer deepened to the slot bridge

85 slot bridge protruding

86 thermoplastic material

Figure 11 91 top view offset slot bridge arrangement

92 slot bridge

93 perforated sheet

94 Section elevation slot bridge

Figure 12 Simple light scaffolding slab under construction, section

101 support core

102 top layer

103 top layer below

104 edge-edge closure

105 thermoplastic material with highly oriented reinforcement elements

106 Fusion edge closure

107 Anti-skid structure

Figure 13 + 14 111 melted deformation for suspension scaffold board

112 melted holes with material compression all around

113 melted U-profile

114 material compression

Figure 15 +16 scaffold plate before and after the folding, different thicknesses, cut

115 compacted support core

116 Compaction of the support core in the folding area

117 Normal support core strength

118 Final support core compaction in the folding area

Figures 17 + 18 scaffolding plate with four side protection parts and access hatch,

Side views, cross sections

131 Edge protection part edged

132 scaffolding panel

133 edge closure

134 Access hatch opened

135 hinge made of thermoplastic material, springy and retracting

136 frame for flap, compressed

137 finger hole

138 drainage slots

Figure 19 top view

141 side protection part

142 drainage slots 143 access hatch

144 frames for the flap

145 access hole

146 hinge made of thermoplastic material, springy and retracting

Figures 20 suspension fittings, stronger and weaker plate

151 claw

152 round groove

153 holes

154 top layer

155 top layer below

156 support core and spacers for cover layers

157 Pressure fusion with top layer

158 Deformation of the support core and cover layers to form a homogeneous claw

159 Deformation of the support core and lower cover layer to form a round groove

160 non-slip structure

161 right-angled arrangement of the claw

162 Angling the web of the claw

163 Deformation of the claw to support the pipe suspension

Figures 21 scaffolding panels with upstands and folds, view of panel end thin panel before stacking, thick panel after stacking

171 hanging claw or groove

172 Stackability

173 Protection

174 Cantilevered side protection part

175 folded side part

176 covering surface upper edge

Figures 22 rear side panel, view

177 hanging claw

178 Protection against displacement

179 folded side protection part

180 covering surface upper edge

Front side protection part, view

181 hanging claw

182 upturned side protection part

183 covering surface upper edge

Figures 23 + 24 Light scaffold plate, special shapes

Board construction with a cover layer on both sides

191 support core

192 top cover layer

193 lower cover layer

194 highly oriented thermoplastic material

195 Edge-edge closure

196 structure sunk

197 printed fleece, colored foil

Panel construction with one-sided top layer

201 support core

202 top cover layer

203 Highly oriented thermoplastic material

204 Edge closure with slight corner rounding 205 raised structure

206 inserted reinforcement tube

Figures 25-28 edge closure types

207 tongue and groove

208 positive rounding

209 negative rounding

210 slits

211 Changing plate thickness in the plate

212 U-profiling

Figure 29 Doubled honeycomb plate as a support core

213 honeycomb panel 1

214 honeycomb panel 2

215 Connection of the support core plates by fusion / gluing

216 thick top layer

217 thin top layer

218 standing structure

Figure 30 Light scaffold plate, top view of a lattice-like shape

231 plate A

232 plate B

233 claw on U-profile

234 round groove on tube

235 top layer

236 Additional bridge, also shaped as a top layer

237 edge closure

238 U profile

239 tubular cross member

Figure 31 Light scaffold plate, top view of mesh-like interlocking round groove

240 plate A

241 plate B

244 round groove resting on pipe

245 top layer 255

246 edge closure with addition of additional profile

247 Edge lock 249 Cross tube

Figures 32 section through the material to be pressed before pressing

With perforated sheet

251 upper perforated metal sheet with countersunk holes

252 support core made of thermoplastic material, e.g. honeycomb

253 lower perforated metal sheet of the usual type

254 hot and cooling press plates, stationary or as a belt

With simple sheet metal with primer (adhesion promoter)

255 metal top layer

256 primers (adhesion promoter) applied during the rolling process of the sheet

257 thermoplastic support core

258 primer (adhesion promoter) applied during the rolling process of the sheet

259 metal top layer Figure 33 Section through the "light scaffold plate", pressed only from perforated plate and support core

260 upper perforated metal-plastic top layer with countersunk holes

261 melted support core above and / or below

262 lower perforated metal plastic plate with full plastic layer

Figure 34 surface of the plate with countersunk holes before pressing

263 perforated metal sheet on top

264 countersunk hole with recessed edge

265 e.g. Honeycomb panel as a support core

266 perforated metal sheet below

Figure 35 Surfaces of the 'light scaffold plate'

267 smooth plate with full plastic layer without structure

268 structured plate with full plastic layer

269 countersunk perforated plate with visible metal and plastic layer

Different shapes of the perforated metal sheet before / after pressing Figure 36 Longitudinal section through the perforated metal sheet

311 Depth of the corrugation when perforated at the corrugation depth

312 Visible surface sheet metal

313 perforation

314 Depth of the bead when the hole is lowered further

315 countersink

Figure 37 cross section through the perforated metal sheet

321 depth of the corrugation when perforated to the crimp depth

322 Visible surface sheet metal

323 holes

324 depth of the bead when the hole is lowered further

325 countersink

Figure 38 top view of perforated sheet with perforated and linear bead countersink

331 deepening of the bead

332 Visible surface sheet metal

333 perforation

334 countersink

Figure 39 top view of perforated sheet with linear bead and additional hole countersink

341 deepening of the bead

342 Visible surface sheet metal

343 perforation

344 countersink

345 Bead depth remaining

Figure 40 top view of perforated plate with linear bead and hole countersink

351 bead depth

352 Visible surface sheet metal

353 perforation

354 plate at hole height

Figures 41 Surfaces with contours either in sheet metal or in plastic

361 Visible metal strips

362 Visible plastic strips 363 hole contours

364 wave contours

365 corner contours

366 cube contours

Figure 42 Front view Light scaffold panel with side protection and toe board with

recesses

371 hanging claw or groove

372 covering surface upper edge

373 side protection part

374 groove

375 toe board

376 Cut-out in the toe board

377 locking pin

Figure 43 Light scaffold panel with combined side protection and toe board, view from the top of the panel

378 hanging claw or groove

379 Protection against displacement

380 Bent side part

381 Cantilevered side protection and toe board

382 covering surface upper edge

Figure 44 Light scaffold plate with side protection part and mounted toe board,

Cross section behind the beginning of the plate

383 Cantilevered side protection part

384 toe board

385 locking pin

Figure 45 top view of surface of perforated metal plate with slot bridge perforations, with thermoplastic filling

391 Linear, offset alignment of the slot bridge perforations

392 Load-bearing sheet metal part

393 Slightly lowered thermoplastic filling, covering the bridge

Figures 46 slot bridge hole longitudinal and cross-section, after hot pressing, filled like a jacket with thermoplastic material

411 Anchoring the thermoplastic connecting material over and around the slot bridge

412 slot bridge

413 honeycomb support core

414 Thermal welded connection with upper honeycomb attachment

Figure 47 Bead-like cover plate formation, folded

421 folded bead

422 upper edge of sheet metal

423 tie layer

424 Surrounding the bead

Figure 48 Bead-like cover plate formation

431 bead

432 upper edge of sheet metal

433 z. B. open groove

434 tie layer

435 Enclosure of the bead Figure 49 Hook-like approaches on the sheet

441 hooks

442 upper edge of sheet metal

443 connection layer

444 Enclosure of the hook

Figure 50 joints of the side protection and side panels with resilient, the

Overlay continuing overlap, each pressing on the next plate

451 side protection part 1

452 side protection part 2

453 Upper edge of the attached side section over side protection section 1

454 Upper edge of the side panel over the side protection panel 2

455 side part 3

456 side part 4

457 Groove for insert side part in side protection part

458 Spring overlap, pressing onto the next panel, welded on the cover layer of the side part on each side edge and below over the tongue edge engaging in the groove

459 Covered seams, side protection parts and side parts

Figure 51 Glued in support core

461 L-, C- or U-shaped edge of the metal cover layer

462 Support core made of thermoplastic honeycomb or foam with closed pores

463 Thermoplastic layer surrounding the support core

464 Adhesive layer between the metal cover layer and the support core

Figure 52 side protection system structure with overlaps to the surrounding

scaffolding bays

471 scaffold bay 471

472 scaffold bay 472

473 scaffold bay 473

474 scaffold bay 474

475 scaffold bay 475

476 scaffold bay 476

477 scaffold bay 477

478 scaffold bay 478

479 scaffold bay 479

480 overlap scaffold bay 472 to 471

481 Overlap scaffold bay 472 to 476

482 Scaffold bay 472 overlaps to corner of 475

483 overlap scaffold bay 473 to 472, 477 and corner of 476 and so on

Figures 53 + 54 glass fiber layers

496 Linear glass fibers next to each other, several layers aligned lengthways in thermoplastic sheet or film

497 Linear glass fibers lying next to each other in a thermoplastic sheet or film

498 Linear glass fibers lying next to each other, layers lengthways and crossways

499 Linear glass fibers lying next to each other, several layers on top of each other along and across.

Claims

Light scaffolding panel and process for its manufacture

5 claims

01. Lightweight scaffolding plate for inserting, inserting, pushing in, riveting, screwing, gluing, welding or for other fastening in an existing metal, preferably aluminum frame of a facade or rolling scaffold or for hanging directly into one

10 scaffolding, in various lengths and widths and process for their production, characterized in that it is provided as a sandwich panel made of thermoplastic or thermosetting plastic or a mixture of the two with a reinforcement for one or more of the known scaffolding systems.

02. Light scaffolding plate according to claim 01, characterized in that the upper and / or lower 15 re cover layer of the plate consists of reinforced or non-reinforced plastic material.

03. Light scaffolding panel according to claim 01 and 02, characterized in that the edge or edge finishes and / or the intermediate webs and / or the frame reinforcements made of reinforced plastic material, the lower and / or upper cover layer material and / or the compressed or fused and solidified support core material consist.

20 04. Lightweight scaffolding panel according to claim 01 to 03, characterized in that the reinforcement made of long and / or short-fiber natural, metal or synthetic fibers, fabric or fleece made of them, made of glass, plastic, carbon or metal or a mixture thereof consists.

05. Light scaffolding plate according to claim 01 to 4, characterized in that the upper and / or 25 lower cover layer of the plate is a perforated metal plate or foil or that such in the

Top layer is embedded.

06. Light scaffolding plate according to claim 01 to 05, characterized in that the upper and / or lower cover layer of the plate is a countersunk perforated sheet or a sheet.

07. Lightweight scaffolding plate according to claim 01 to 06, characterized in that the perforated metal plate or sheet or the countersunk perforated sheet or the sheet by one-sided overlapping material within the perforations of a thermoplastic or thermosetting plastic sheet or mass of one or more Layers are physically firmly connected and anchored.

08. Light scaffolding plate according to claim 01 to 07, characterized in that the support core between the two cover layers of the plate made of molded thermoplastic or Du-

35 roplastic material, such as honeycombs, webs, cones, box or corrugated web profiles,

Foam or other spacer shapes, with or without fiber, fabric or fleece reinforcement or fixed outer and / or intermediate webs.

09. Lightweight scaffolding plate according to claim 01 to 08, characterized in that one or both cover layers, the edge finishes and / or molded side parts, suspension and Ausfa- ochungsarmaturen exclusively made of multi-layer, with bidirectional molecular alignment tion of highly oriented reinforcement elements made of processed thermoplastic material of the same or similarly adjusted material base material with high stiffness and strength and contain no glass fiber or other reinforcement made of non-thermoplastic material and is therefore fully recyclable.

5 10. Lightweight scaffolding plate according to claim 01 to 09, characterized in that the support core between the two cover layers made of thermoplastic base material, prepared with bidirectional molecular alignment of highly oriented reinforcing elements of the same or similarly set material base material with high rigidity and strength and no glass fiber or other Contain reinforcement made of non-thermoplastic material and thereby,

10 is also fully recyclable together with cover layers made of the same material.

11. Light scaffolding plate according to claim 01 to 10, characterized in that the thermoplastic support core and / or the cover layers or the one or both sides penetrating the perforated sheet material made of acrylic glass (PMMA), thermoplastic polyester ((PET / G), polyamide (PA ), Polycarbonate (PC) Polyethylene (PE), Polyetrafluoroethylene (PTFE), Polypropylene (PP), Po-

15 lyoxymathylene (POM), polyvinyl chloride (PVC) or a mixture of these substances with the same or different melting point.

12. Light scaffolding plate according to claim 01 to 11, characterized in that a thermosetting or thermosetting support core and / or thermosetting or thermosetting cover layers or the material made of phenolic resin, cresol, which penetrates the perforated plate on one or both sides.

20 resin (PF), urea resin (UF), melamine resin (MF) and polyester resin (UP) or a mixture of these substances.

13. Light scaffolding plate according to claim 01 to 12, characterized in that the thermoplastic material to achieve better strength and rigidity, modulus of elasticity, flexural and cautious modulus, hardness, dimensional stability in heat, tear and tensile strength, compressive strength,

25 dimensional stability, density, alternating bending strength, thermal conductivity, melt viscosity,

Decrease in elongation, impact strength, notched impact strength, tendency to creep, shrinkage, thermal expansion, abrasion resistance, UV and weather resistance and the melt index an admixture of additives that influence this, e.g. Talc, wood flour, wollastonite, zinc oxide, metal powder, mica, calcium carbonate or other suitable sub-

30 punching takes place or the materials themselves already have different melting points.

14. Light scaffolding plate according to claim 01 to 13, characterized in that it has a molded from the support core and cover layer material and / or molded suspension in a known claw shape for hanging in the stand structure provided with an upright angle or U-profile.

35 15. Lightweight scaffolding panel according to claim 01 to 14, characterized in that it is molded on and / or by compression from the support core and cover layer material

Has suspension in a known claw and / or round groove shape for hanging in the stand structure provided with an upright angle or U-profile or a round tube.

16. Light scaffolding plate according to claim 01 to 15, characterized in that these alone or 0 in addition to the claw and / or round groove shape perforations, also through hollow rivets made of metal or Plastic or reinforced by material compaction on the edges of the holes, for hanging in the scaffold structure provided with corresponding upstanding pins.

17. Light scaffolding plate according to claim 01 to 16, characterized in that the molded suspension according to claim 14 to 16 uniformly over all or part of the plate width, such as e.g. the adhesion, a third, a quarter or less, is molded on.

18. Light scaffolding plate according to claim 01 to 17, characterized in that the molded suspension is formed like a grid at the two ends of the plate for the interlocking of two plates.

19. Light scaffolding plate according to claim 01 to 18, characterized in that it is inserted or fastened as part 10 in a frame with the suspension molds according to claim 14 to 18.

20. Light scaffolding plate according to claim 01 to 19, characterized in that it has no side protection edge and / or side protection part.

21. Light scaffolding panel according to claim 01 to 20, characterized in that side protection parts are integrally formed on one or 15 more side edges.

22. Light scaffolding panel according to claim 01 to 21, characterized in that it is frameless, self-supporting, fully load-bearing and with 100, 150, 200 or 250 kg drop weight in the middle or at other points between the suspensions of the panel, with or without reinforcement ,

20 23. Light scaffolding panel according to claim 01 to 22, characterized in that it has molded the suspension fitting or perforation and the required side protection part and is stackable.

24. Light scaffolding plate according to claim 01 to 23, characterized in that it has up and down bends in the side area over the entire length or parts thereof.

25 25. Light scaffolding plate according to claim 01 to 24, characterized in that it has bevels of the same or different type and / or size on both sides.

26. Light scaffolding plate according to claim 01 to 25, characterized in that the upstand for the side protection part in the side area has a height of up to 10 cm.

27. Light scaffolding plate according to claim 01 to 25, characterized in that the upstand for 30 has the side protection part in the side area up to 15 cm in height.

28. Light scaffolding plate according to claim 01 to 25, characterized in that the upstand for the side protection part in the side area has a height of up to 100 cm or the usual height of a toe board for fall protection.

29. Light scaffolding plate according to claim 01 to 25, characterized in that the upstand for 35 has the side protection part in the side area up to 150 cm in height.

30. Light scaffolding plate according to claim 01 to 29, characterized in that the upstand for the side protection part in the side area is in two parts or three parts and has a total height of up to 350 cm.

31. Light scaffolding plate according to claim 01 to 30, characterized in that the side protection part consists of two or three independent parts.

32. Light scaffolding plate according to claim 01 to 31, characterized in that the upstands and bevels in the side region are thermoplastic compressed to other material thicknesses at the bevel and the edges are closed and / or grooves or other connecting parts are formed, which are an extension of the side protection part in the Take up the height by putting it on, plugging it on or the other fastening and holding it in such a way that it can be removed and secured against unintentional loosening.

33. Light scaffolding plate according to claim 01 to 32, characterized in that the second and further part of the side protection part has a much thinner thickness than the molded part on the plate.

10 34. Light scaffolding plate according to claim 01 to 33, characterized in that the side protection part has larger recesses or openings.

35. Light scaffolding panel according to claim 01 to 34, characterized in that the thermoplastic material of the connecting and covering layers and the support core, including in particular the side protection part, is colorless and translucent.

15 36. Lightweight scaffolding plate according to claim 01 to 35, characterized in that it has a width of 58 to 65, 88 to 95 or 118 to 125 cm or up to 150 cm, with or without a lateral upstand.

37. Light scaffolding plate according to claim 01 to 36, characterized in that it has a length of up to about 60, 100, 150, 200, 250, 300, 350 or 400 cm.

20 38. Light scaffolding plate according to claim 01 to 37, characterized in that these or possibly attached side protection parts can be secured with securing pins or other securing devices sufficiently on the scaffold, removable, secured.

39. Light scaffolding plate according to claim 01 to 38, characterized in that the lateral fold in the area of the suspension at both ends of the plate against displacement

25 the suspension serves.

40. Light scaffolding plate according to claim 01 to 39, characterized in that the suspension is secured at one or both ends of the plate with a permanently elastic, only openable under pressure plastic spring or flap.

41. Light scaffolding plate according to claim 01 to 40, characterized in that it has a non-slip, raised or recessed structure anywhere in the top layer or in individual places.

42. Light scaffolding plate according to claim 01 to 41, characterized in that it has a non-slip, raised or recessed perforated metal cover layer above everywhere or in individual places.

35 43. Lightweight scaffolding plate according to claim 01 to 42, characterized in that the perforated metal sheet on top and bottom in connection with the support core absorbs the static stress on deflection at the required load.

44. Light scaffolding plate according to claim 01 to 43, characterized in that the perforated metal either aluminum, also with admixture of other metals, steel (hot-dip galvanized or -

40 aluminized), stainless steel sheet or other metals or metal composite materials and has either a simple perforation, a counterbore, slot bridge, nose, tab or similar perforation or a recessed perforation in this or a similar form.

45. Light scaffolding plate according to claim 01 to 44, characterized in that the perforated detail to the support core and / or upwards or downwards is provided with an additional primer (adhesion promoter) or a color layer.

46. Lightweight scaffolding panel according to claim 01 to 45, characterized in that the outer cover layer is a metal plate or a sheet with top or bottom or on both sides with stabilizing beads or ridges aligned with the cover layer in the longitudinal direction of the plate.

47. Lightweight scaffolding panel according to claim 01 to 45, characterized in that the outer cover layer 10 is above or below or on both sides a metal plate or a sheet metal with stabilizing beads or beads aligned with the cover layer in the transverse direction of the plate.

48. Light scaffolding plate according to claim 01 to 47, characterized in that the outer perforated sheet cover layer in the perforation, in particular in the elongated or similar perforation, in the direction of the main load on deflection between the rows of holes unpunched metal

15 stripes.

49. Lightweight scaffolding plate according to claim 01 to 48, characterized in that the perforated sheet cover layer is connected via the enclosure of the holes, beads, beads, hooks or claws etc. with the plastic compound layer or solely by melting into the upper and / or lower surfaces of the support core ,

20 50. Light scaffolding plate according to claim 01 to 49, characterized in that at one or both sides of the plate preferably linear parallel to the main direction of deflection when the plate is loaded in the perforated plate, also offset from one another, arranged countersunk, slotted bridge or the like Perforations plastic material penetrating the sheet metal at the perforation points corresponding to the multitude of perforations an equal variety of form-fitting,

25 rivet, also flat rivet-like connections between perforated plate and support core, so that a homogeneous connection is formed, which is distributed over the entire plate surface.

51. Light scaffolding plate according to claim 01 to 50, characterized in that the lowering of the hole makes about 70, 60 or 50% and the real perforation about 50, 40 or 30% in the countersunk hole.

30 52. Light scaffolding plate according to claim 01 to 50, characterized in that in the slot bridge perforation the longer and narrow side of the slot bridge runs parallel to the direction of the load on deflection of the plate and about 70, 60, 50, 40% or 30% of the sheet surface.

53. Light scaffolding plate according to claim 01 to 50, characterized in that in the slot bridge perforation 35 hole and the slot bridge is approximately square with rounded corners and the hole size makes up about 70, 60, 50, 40 or 30% of the sheet surface ,

54. Light scaffolding plate according to claim 01 to 53, characterized in that the perforated sheet cover layer is only available on one side over the entire surface and is provided with lateral C, L or U-shaped, stiffening folds which completely support the support core on the other side or partially enclose.

55. Light scaffolding plate according to claim 01 to 53, characterized in that a plastic, preferably thermoplastic support core, which is enclosed on both sides or on all sides, is permanently glued or welded into a pocket-shaped metallic cover layer.

56. Lightweight scaffolding plate according to claim 01 to 55, characterized in that the support core consists of 5 thermoplastic foam with closed pores.

57. Light scaffolding plate according to claim 01 to 55, characterized in that the support core consists of one or more honeycomb plates, with or without honeycomb tubes each closed by a cover layer.

58. Lightweight scaffolding plate according to claim 01 to 55, characterized in that the support core consists of 10 continuously extruded honeycomb plates with flattened, beaded tube ends.

59. Light scaffolding panel according to claim 01 to 58, characterized in that this or the molded or attached side protection parts have a full-surface and / or visible or only visible through the perforations of the perforated sheet cover layer, also as advertising text.

15 60. Lightweight scaffolding panel according to claim 01 to 59, characterized in that it is colored in the plastic material in one or more colors of your choice and / or in the metal cover layer permanently, weather-resistant and UV-stable or provided with a primer / adhesion promoter.

61. Light scaffolding plate according to claims 01 to 60, characterized in that it is a small one

20 or large access opening with an inserted flap made of the same material, which is connected to the plate either with conventional hinges or preferably with a flexible cover and hinge layer made of permanently moveable, thermo-plastic material, permanently and automatically closes the access opening automatically after opening or by actuating the lock ,

25 62. Light scaffolding plate according to claim 01 to 61, characterized in that the frame for the attachment of the flap of the access opening is formed directly on the plate, contains reinforcements and the flap made of the same material as the plate, either in the same or far less thickness consists.

63. Light scaffolding plate according to claim 01 to 62, characterized in that the cover layer 30 of the plate above and below and the side protection parts consist of the same or different materials and material thicknesses.

64. Lightweight scaffolding plate according to claim 01 to 63, characterized in that by deformation of the cover layers these are to be carried webs or profiles within or on the edges of the support core or serve as a support core itself.

35 65. Light scaffolding plate according to claim 01 to 64, characterized in that inside or as

Side closure of the plate in the longitudinal direction one or more pipes or U-profiles made of metal or GfK, also sheathed or deformed from perforated sheet metal, to absorb higher loads or welded or glued or glued.

66. Light scaffolding plate according to claim 01 to 65, characterized in that the lateral channels

40 th with a round, square or rectangular tube, a U-profile, a special extrusion or roll deformation profile are provided with grooves for receiving the upper and lower cover plates, which in this case are laterally folded.

67. Light scaffolding plate according to claim 01 to 66, characterized in that the scaffolding plate cover with the same surface is in one piece without interruption to the end of the step

5 tot the claw or round groove of the suspension fitting or the two suspension fittings continues.

68. Light scaffolding panel according to claim 01 to 67, characterized in that the metallic scaffolding panel cover layer is embedded at its edges as protection against injuries in the plastic cover layer.

10 69. Light scaffolding plate according to claim 01 to 68, characterized in that the web of the claw of the hanging part is arranged at right angles to the scaffolding plate.

70. Light scaffolding plate according to claim 01 to 68, characterized in that the web of the claw of the hanging part is angled up to 45 ° to the outside or has a slight bend inwards.

15 71. Light scaffolding plate according to claim 01 to 70, characterized in that the opening of the claw of the hanging part up to its throat a depth of 10 and at most 20 mm, from 20 and at most 30 mm, from 30 and at most 48 mm or a larger Has measure.

72. Light scaffolding plate according to claim 01 to 71, characterized in that the rounding of the suspension groove is crescent-shaped or only partially crescent-shaped.

20 73. Light scaffolding plate according to claim 01 to 72, characterized in that the web of the claw of the suspension part supports the mounting of the plate on the ascending web of the mounting profile by corresponding deformation.

74. Light scaffolding plate according to claim 01 to 73, characterized in that part of the suspension part of the plate both in the claw and in the hanger round groove on the

25 bracket profile or support tube is a locking securing device.

75. Lightweight scaffolding plate according to claim 01 to 74, characterized in that a perforated metal plate is embedded or welded into a thermoplastic plastic layer, plate or film made of one or more layers.

76. Light scaffolding plate according to claim 01 to 75, characterized in that in the perforated 30 metal plate all or only individual perforations of the plate have hole edge depressions.

77. Light scaffolding plate according to claim 01 to 76, characterized in that the perforated metal cover layer on all or only individual perforated edges has an inwardly tapering reduction of the hole.

78. Light scaffolding plate according to claim 01 to 77, characterized in that all or individual 35 perforations of the perforated metal cover layer have edge depressions at the same time and that

Material of the cover layer at all or individual hole edges tapered in thickness towards the center of the hole.

79. Light scaffolding plate according to claim 01 to 78, characterized in that the edge depressions of the perforated metal cover layer have the height, more than the height or less than the height, which corresponds to the material thickness of the latter.

80. Light scaffolding plate according to claim 01 to 79, characterized in that the edge of the perforation in the perforated metal cover layer extends from top to bottom at an angle of 25 to 65 ° to the center of the hole and is flattened shortly before the opening of the hole or not.

81. Light scaffolding plate according to claim 01 to 80, characterized in that the height of the fold 5 can exceed the plate thickness up to a multiple.

82. Light scaffolding panel according to claim 01 to 81, characterized in that a groove is formed on the entire panel width seen from the center of the panel in front of the or the outer bend (s).

83. Light scaffolding plate according to claim 01 to 82, characterized in that seen from the plate 10 in the middle in front of the or the outer bend (s) on both sides with weaker and thicker plates with a semicircular or partially semicircular recess.

84. Light scaffolding plate according to claim 01 to 83, characterized in that it is provided in the main direction of support with grooves, beads and / or folds and bends.

15 85. Light scaffolding panel according to claim 01 to 84, characterized in that it has small or larger recesses within the panel surface, with or without attached or inserted cover of the same or less thickness, also connected to the panel with elastic thermoplastic material.

86. Lightweight scaffolding plate according to claim 01 to 85, characterized in that both the thermoplastic support core in direct connection and the cover layers as intermediate layers of the welded connection to the perforated metal are made of polypropylene (PP) and the plate thus despite the different melting points of plastic and metal is fully recyclable.

87. Light scaffolding plate according to claim 01 to 86, characterized in that all or individual 25 perforations of the perforated or countersunk perforated plate as round or square holes, elongated holes, hexagonal or polygonal holes, diamond holes, triangular holes, star holes, key holes with rounded corners or angular, or are formed in other types of holes.

88. Lightweight scaffolding plate according to claim 01 to 87, characterized in that the with a thickness of about 50 to 60 mm a basis weight of up to 1 1, 9 or 7 kg, with a thickness of

30 approx. 40 to 50 mm one of up to 10, 8 or 6 kg, with a thickness of approx. 20 to 30 mm one of up to 7, 6 or 5 kg and with a thickness of up to 20 mm that of up to 6, 5, 4, 3.5 or 3 kg per square meter.

89. Lightweight scaffolding panel according to claim 01 to 88, characterized in that the plastic cover layers with glass fiber reinforcement each weigh approximately 1.0 to 1.5 kg and approximately 1.0 to 2.0 mm thick

35 are, the perforated metal or countersunk perforated cover layers connected with plastic in one

Aluminum alloy weigh approx. 0.6 kg to 1.8 kg each and are 0.3 to 0.5 mm thick.

90. Lightweight scaffolding plate according to claim 01 to 89, characterized in that the thermoplastic support core with or without reinforcement per cm thickness 0.6 to 1.0 kg per square meter.

91. Light scaffolding panel according to claim 01 to 90, characterized in that as top layer 40 only one primed to the support core (provided with adhesive base) as top and bottom. Sheet metal without perforations, in the same or different thickness, with or without anti-slip coating, is applied.

92. Light scaffolding plate according to claim 01 to 91, characterized in that the finished pressed plate with aluminum top layer in the top layers is chemically treated together with the visible plastic parts or anodized in an anodized bath in a color of your choice.

93. Light plate analogous to a scaffolding plate according to claim 01 to 92, characterized in that it is used as a base plate, formwork plate, wall plate, wall cladding, soundproofing plate, heat or sound insulation plate, roof panel, base layer for a photovoltaic laminate or for photovoltaic cells, table or table tennis table, bench or chair, also with molded and

10 foldable legs, door, gate or garage door, step, as a decorative plate and for

Vehicle bodies as well as many other products, as well as deformed is used as a load-bearing profile.

94. Light plate analogous to a scaffolding plate according to claim 01 to 93, characterized in that when using a gas-permeable support core and a sheathing it

15 gas impermeable film is used as a vacuum panel.

95. A method for producing a lightweight scaffolding plate according to claim 01 to 94 in a stationary plate press, characterized in that the plate from a thermoplastic support core or other spacers in oversized thickness and necessary width and length in the middle, which determines the exterior of the plate , about the top and bottom

20 only one sheet, a perforated sheet or a countersunk perforated sheet is laid, in a single hot press and cooling press pass with temperatures for heating and cooling which are matched to the different melting points of the materials and the material thicknesses, in direct contact with the hot and then cool plates of the press and / or the possibly required, also structured, separating film (s) pressed and thermoplastic to the previously strengthened

25 ke and color design certain panel is connected and the final, sunken or raised surface structure and shape as well as additional moldings when using appropriate molding tools such as claws, grooves and other suspension fittings, closures, reinforcements, inlays and web inclusions, edges and perforations.

96. A method for producing a lightweight scaffolding plate according to claim 01 to 94 in a stationary plate press, characterized in that the plate made of a thermoplastic support core or other spacers in the necessary thickness, width and length in the middle and thermoplastic cover layers above and below , over which a perforated plate or a countersunk perforated plate is placed or which are reinforced with fiber, fabric or fleece, in a single hot-pressing and cooling-pressing cycle with the different melting points of the materials and the material

35 strengthen coordinated temperatures for heating and cooling in direct contact with the hot and then cool plates of the press and / or the possibly required, also structured separating film (s) pressed and thermoplastic bonded to the panel previously determined in the later thickness and the final, sunken or raised surface structure and shape as well as when using appropriate molding tools additional

40 Formations such as claws, grooves and other suspension fittings, closures, reinforcements, inlays and bar inclusions, edges and perforations.

97. A method for producing a light scaffold plate according to claim 95 and 96, characterized in that plates placed next to or behind one another in several units are pressed in a single press run.

98. A method for producing a light scaffolding plate according to claim 95 to 97, characterized in that when using the countersunk metal plate, the liquid thermoplastic mass flowing from the thermoplastic cover layer and / or the surface of the support core during hot pressing flows through the holes, fills the depressions in the plate and at the

10 closing cooling form the solid rivets required for the physically positive connection or the wedging.

99. A method for producing a lightweight scaffolding plate according to claims 95 to 97, characterized in that when a perforated metal plate is used, the liquid thermoplastic resulting from the thermoplastic cover layer and / or the surface of the support core during hot pressing.

15 moplastic mass flows through the holes and forms a flat over the perforations

The plastic layer expands and during the subsequent cooling the connecting pins for the flat plastic layer required for a physically positive connection or clawing are formed.

100. A method for producing a lightweight scaffolding panel according to claim 95 to 99, characterized in that the stability, the modulus of elasticity and the UV and weather resistance of the panel in addition to the strength and the material properties of the cover layer by increasing or reducing the Hole size and / or the lowering of the hole and / or is influenced by offset arrangement of the hole in the direction of the stress.

101. A method for producing a light scaffolding plate according to claims 01 to 100. characterized 25 in that it is in a continuous extrusion process for the honeycomb support core, with or without a flattened plate surface, or a continuous deep-drawing process for a support core in tube, Hat, box, web, corrugated web or similar structure, the introduction of slits in the honeycomb structure, with subsequent hot pressing of the cover layers of the same or different thickness from the coil or

30 as a plate in a continuous or plate press cycle, with or without intermediate layers of

Non-woven, fabric or adhesive layers, with or without the application of sunken or raised structures or top layers such as an anti-slip structure or perforated metal or countersunk metal or similar layers, notches in slots, perforations or the like, the subsequent edges and fitting molding as well as that Pruning o-

35 of the lengths, while maintaining or introducing the required, precisely controlled fusion temperature on the surfaces to be melted and the material to be melted underneath and subsequent cooling in the subsequent cooling press, each under electronic or manual control and careful observation of the temperature window required for the material.

40