EP2055864A2 - Panneau de coffrage - Google Patents

Panneau de coffrage Download PDF

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Publication number
EP2055864A2
EP2055864A2 EP08018641A EP08018641A EP2055864A2 EP 2055864 A2 EP2055864 A2 EP 2055864A2 EP 08018641 A EP08018641 A EP 08018641A EP 08018641 A EP08018641 A EP 08018641A EP 2055864 A2 EP2055864 A2 EP 2055864A2
Authority
EP
European Patent Office
Prior art keywords
edge
base body
plate
reinforcing
formwork panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08018641A
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German (de)
English (en)
Other versions
EP2055864A3 (fr
Inventor
Manfred Wagner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Doka GmbH
Original Assignee
Wiehag Holding GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wiehag Holding GmbH filed Critical Wiehag Holding GmbH
Publication of EP2055864A2 publication Critical patent/EP2055864A2/fr
Publication of EP2055864A3 publication Critical patent/EP2055864A3/fr
Withdrawn legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G2009/023—Forming boards or similar elements with edge protection

Definitions

  • the invention relates to a formwork panel and a method for producing the same, as described in the preambles of claims 1, 9, 11, 12 and 15.
  • the DE 2 305 797 A discloses a form panel with a base made of wood, which is provided at its wide surfaces with protective layers and at the edge of the plate with an edge protection.
  • the edge protector has a surface cover and an intermediate layer between the plate edge and the surface cover and is secured to the plate edge.
  • the longitudinal edges are flush with the outer surfaces of the protective layers.
  • the arrangement of the intermediate layer at the edge of the plate leads to a substantial broadening of the edge protection, which is beneficial to the impact resistance of the formwork panel, however, those surface areas that are created by the edge protection additionally, only a low mechanical load, such as shock load, in the Plate plane are exposed to vertical direction, otherwise high shear forces arise in the glue joint between the protective layers and the edge protection, which can extend so far that the joint connection is destroyed and moisture can penetrate into the base body formed of wood.
  • the penetrating moisture leads to a swelling of the body and thus to a deteriorated quality of the concrete surface to be produced, which is undesirable, especially in exposed concrete.
  • the EP 1 186 398 A1 discloses a composite panel with a honeycomb core and attached to both sides of cover layers and bonded to the peripheral edge of the plate with the honeycomb core and the cover layers edge protection.
  • the edge protector is designed as a wide edge band with substantially flat surfaces on both sides. Due to the honeycomb structure, the edge band is connected to the composite panel at only a few joints with respect to the length / width of the composite panel. Since there is no continuous joining surface below the edge band, there is a risk that the edge band between the joints will be damaged even with the least mechanical stress on the edge band in the direction perpendicular to the edge of the panel.
  • a formwork panel for concrete formwork with a base body and an edge plate attached to the peripheral edge of the board is from the DE 196 11 382 A known, which edge protection an upper-surface covering and an intermediate layer arranged between the latter and the edge of the plate.
  • the main body has a central layer of a low-quality wood and numerous resin galls. These defects in the wood of the middle layer are sealed by the intermediate layer, wherein the intermediate layer extends either over only a part of the thickness of the base plate or over the entire thickness of the base plate.
  • the intermediate layer is always applied to the possibly previously provided with a profiling plate edge.
  • the surface cover is made in the first introduced the main body with the attached intermediate layer in an open mold and the plastic is poured into the mold cavity.
  • the object of the invention is to provide a formwork panel that can be used without restriction in rough construction site operation and can be made with the high quality concrete surface.
  • the reinforcing edge is recessed in a lying on the plate edge along a longitudinal plate side or plate transverse side receiving and sealed on the one hand always defects in the body, such as cracks, tree edges, knotholes, or formed by the surface structure of the body at the plate edge cavities and protects the body from the ingress of moisture.
  • the narrow receiving groove hardly changes the mechanical strength values of the formwork panel. Rather, the mechanical strength values of the formwork panel, in particular in the edge region can be improved by the arrangement of the reinforcing edge.
  • the formwork panel according to the invention not only has a high impact and impact resistance in the edge region, but fasteners can be attached at any point near the edge of the plate on the broad side of the formwork panel.
  • the compact design of the body in the edge area prevents chipping or breaking out of material, even if a few millimeters next to the plate edge, for example, a nail is hammered into the broad side of the formwork panel.
  • the reinforcing edge is spanned on both sides by the wide surfaces and also swelling or shrinkage of the body does not produce any unevenness on the broad surfaces, as is the case in the prior art, and the high quality of the concrete surface is maintained.
  • the arrangement of the edge of the reinforcement at the edge of the panel ensures close contact with adjacent formwork panels of a concrete formwork. This is particularly important because even small joints between adjacent formwork panels lead to beads on concrete surface to be produced, which must be removed consuming.
  • Another advantage is the embodiment of claim 3, since the entire edge or edge surface of the plate edge is available as a joining surface and thus a reliable adhesion of the surface cover is made possible at the edge of the plate.
  • the development according to claim 5 provides as a connecting means between the surface cover and the base body and the reinforcing edge before a curable adhesive, which not only serves the adhesive connection of the surface cover, but also allows a liquid-tight seal the plate edge.
  • a curable adhesive which not only serves the adhesive connection of the surface cover, but also allows a liquid-tight seal the plate edge.
  • a development according to claim 6 provides that the joining surfaces of the reinforcing edge and the base body lie in one plane. As a result, a production of the formwork panel with little mechanical effort is possible. The purchase of complicated and formerlyinkten-intensive adhesive applicators is not necessary and is also possible to apply the surface cover with simple devices.
  • the surface cover is flush with its longitudinal edges on the wide surfaces, so that a smooth transition between the wide surface of the body and the longitudinal edges of the surface cover is specified.
  • the width of the reinforcing edge can be adjusted according to the height of the loads acting on the formwork panel.
  • the narrow receiving groove hardly changes the mechanical strength values of the formwork panel. Rather, the mechanical strength values of the formwork panel, in particular in the edge area, can be improved by the arrangement of the reinforcement edge and use of selected materials.
  • the reinforcing edge can also be formed as a reinforcing layer of metallic material, wood, Holzwerkszoffe, plastics, a resin-impregnated fiber mat and / or fabric mat, etc., or of a composite of these materials.
  • a further advantageous embodiment of the invention is described in claim 8, since now that between the cover layers arranged (n) layer (s) of a lower quality material (multilayer plate), an open-pored surface structure (fiberboard) or with Cavities (composite plate with honeycomb core) can be produced because it is already sealed by the reinforcing edge, while the cover layers high-quality material is used, which provides optimal conditions for a tensile bond between the surface cover and the body on the one hand and the surface cover and the reinforcing edge on the other , Thus, no high demands are placed on the layer (s) with regard to material quality and processing, but nevertheless a reliable adhesion of the surface cover is achieved by the arrangement of the reinforcing edge.
  • the object of the invention is also solved by the features of claim 9: It is advantageous that even small bumps occur on the concrete surface coming into contact with the concrete due to the narrow surface coverage, even if deviations occurring due to swelling or shrinkage of the base are barely noticeable so that a high surface quality of the concrete surface to be produced is achieved. By means of the surface cover any defects are sealed at the plate edge and prevents ingress of moisture into the body.
  • Another advantage is the embodiment according to claim 10, according to which the surface cover and / or reinforcement edge is formed according to one of the preceding advantageous embodiment.
  • a simple method for producing the formwork panel is to be provided.
  • the object of the invention is also achieved by the measures of claim 12. It is advantageous that in a few steps and with a high degree of automation, the formwork panel according to the invention can be produced inexpensively and easily.
  • the object of the invention is also achieved by the features and measures of claims 11 and 15. It is advantageous that within the framework of the permissible mechanical strength values in the base body at least one expansion groove is produced, by means of which the stresses caused by swelling or shrinkage of the base body are reduced. Therefore, the swelling or shrinkage does not cause any unevenness on the wide surfaces and thus maintains the high quality of the concrete surface.
  • the constructedsnut is either in the material removal process, for example, sawing, milling, planing, etc., worked out in the body or made by deliberately provided in the production of the body free space. If the base body is a laminated wood panel, the free space is formed by spacing between the wooden strips laid in one layer.
  • the measure according to claim 16 is advantageous because the residues are recycled.
  • the residues can be supplied to a waste treatment plant, a power generation device and / or a press device for the production of pellets.
  • Fig. 1 and 2 is a first embodiment of the formwork panel 1 of the invention for concrete formwork shown in different views.
  • the form panel 1 is formed as a laminated board (three-layer panel) and comprises the base body 2 made of wood two parallel with respect to the fiber direction extending cover layers 3a, 3b and a transverse to this center layer 4.
  • the cover layers 3a, 3b and center layer 4 are each formed by a plurality of in one plane close together abutting wooden strips.
  • the main body 2 may, for example, have a four-, five- or multi-layered structure depending on the amount of mechanical stress.
  • the formwork panel 1 is a lightweight board, whose central position is formed by a honeycomb structure, which is planked on both sides with cover layers.
  • the cover layers are connected to the honeycomb core by vottflambaige bonding between the honeycomb core and the cover layers.
  • the honeycomb core is made of light metal or a Alloy, in particular aluminum or aluminum alloy, or another, the static requirements fulfilling honeycomb material, such as cardboard manufactured.
  • the described cover layers 3a, 3b and the middle layer 4 may be made of wood and / or wood material, plastic, metal or a composite of plastic and / or metal and / or wood.
  • the cover layers 3a, 3b made of plastic, for example, by a laminate press plate, in particular an HPL plate (High Pressure Laminates) or CPL plate (Continuous Pressure Laminates) formed.
  • HPL plate High Pressure Laminates
  • CPL plate Continuous Pressure Laminates
  • the plate-shaped base body 2 is covered over its entire surface at its mutually parallel broad surfaces 5 by a non-illustrated water-impermeable protective layer, which is inextricably linked to the base body 2.
  • the protective layers are formed for example by a coating of Kondensationsharzleim, for example melamine resin, phenolic resin, urea-melamine, phenol-resorcinol.
  • the Kondensationsharzleim such as melamine urea-formaldehyde resin or phenol-formaldehyde resin, can either be applied liquid and at least partially pressed into the wide surfaces 5 under the action of temperature or laminated on the wide surfaces 5.
  • the protective layer can also be formed by a laminated on the wide surfaces 5 plastic, film or rubber coating. The protective layer protects the formwork panel 1 from the ingress of moisture, such as concrete water, etc., and microbes.
  • the wide surfaces 5 define a circumferential plate edge 6a, 6b, wherein at least on the parallel longitudinal sides of the plate an edge protection to be described in more detail is arranged. Like in the Fig. 1 registered, can also be provided on the parallel plate transverse sides edge protection.
  • the edge protector has only one reinforcing edge 7, which is fastened in a receiving groove 8a, 8b recessed in advance on the long side of the plate and / or plate transverse side in the base body 2.
  • the receiving groove 8a. 8b extends exclusively over part of the thickness 9 of the formwork panel 1 parallel to the longitudinal side of the panel and / or the panel transverse side and has a width 10 corresponding to the multiple of the depth on.
  • the width 10 of the receiving groove 8a, 8b is greater than the maximum thickness 11 of the middle layer 4 and projects the receiving groove 8a, 8b into the respective cover layer 3a, 3b. It is essential that the receiving groove 8a.
  • the receiving groove 8a, 8b extends over more than 85% of the thickness 12a, 12b of the respective cover layer 3a, 3b.
  • the reinforcing edge 7 is preferably formed by a flat edge band with flat surfaces on both sides, which is completely disposed within the receiving groove 8a, 8b and permanently secured by means of a connecting element 13 on the base body 2.
  • the connecting element 13 is formed by a physically setting adhesive to be attached between the joining surfaces 14a, 14b, 15 of the receiving groove 8a, 8b and the reinforcing edge 7 to be joined together.
  • the reinforcing edge 7 concludes with its remote from the receiving groove 8a, 8b outer surface 16 with the plate edge 6a, 6b flush.
  • the band-like reinforcing edges 7 can be made of pretreated, in particular impregnated cellulose material, preferably moisture-resistant cardboard, rubber, plastic, metal or. Wood and / or wood material or consist of a composite of cellulosic material and / or plastic and / or metal and / or wood.
  • ASA acrylonitrile-styrene-acrylic esters
  • ABS acrylonitrile-butadiene-styrene
  • PP polypropylenes
  • PUR polyurethanes
  • the reinforcing edges 7 can each also by a laminated strip, in particular HPL (High Pressure Laminates) or CPL (Continuous Pressure Laminates), therefore multi-layer laminate material based on synthetic resin, in particular Kondensationsharzleim. for example melamine resin (MF). Phenol resin, urea melamine, phenol resorcinol.
  • HPL High Pressure Laminates
  • CPL Continuous Pressure Laminates
  • the metals used are preferably light metals or light metal alloys, in particular aluminum and its alloys.
  • edge bands are made of wood or wood material, these are in the form of a thin wooden band or in the form of a wood fiber, wood chip or wood veneer tape.
  • the reinforcing edges 7 are formed by a coating of plastic liquid in the initial state, such as polyurethanes (PU), ethylene vinyl acetate (EVA) or the like., Which applied to the joining surfaces 14a, 14b of the receiving groove 8a, 8b liquid and at least Part is pressed into the joint surfaces under the action of temperature.
  • plastic liquid such as polyurethanes (PU), ethylene vinyl acetate (EVA) or the like.
  • the thickness 17 of the reinforcing edge 7 is determined predominantly by the material used for the layer (s) between the cover layers 3a, 3b. If the formwork panel 1 is formed as a laminated wood panel, a wood of lesser quality, therefore with numerous knotholes, tree edges, cracks and / or resin galls is usually used for the layer (s) between the cover layers 3a, 3b. This leads to the plate edge after the blanking of the formwork panel 1 to a partially open-pored surface structure.
  • the thickness 17 of the reinforcing edge 7 is selected between 0.1 mm and 2 mm.
  • the layer is formed by a honeycomb structure, larger cavities are formed after cutting, so that a thickness 17 of the reinforcing edge 7 of the same material as in a layer of wood with between 1 mm and 3 mm is selected. Accordingly, a suitable reinforcing edge 7 is selected depending on the surface extent of the imperfections (pores, cavities, etc.) in the base body 2 or in the (n) layer (s).
  • the thickness 17 should not exceed 3, 5 mm to 4 mm.
  • the stable support structure of the main body now extends in an advantageous manner to the plate edge 6a, 6b and the narrow receiving groove 8a. 8b hardly changes the mechanical strength values of the form panel 1, such as the modulus of elasticity.
  • the mechanical strength values of the formwork panel 1, in particular in the edge area, can be improved by the arrangement of the reinforcing edge 7.
  • the stable support structure now also offers an excellent substructure in the edge area, to which a fastener with high holding power can be attached.
  • the surface cover 18 forms on its side facing the base body 2 a flat joining surface 19. Likewise, the main body 2 and the reinforcing edge 7 on its side facing the surface cover 18 side lying in the same plane joining surfaces 20, 21 from.
  • the surface covering 18 is fastened both to the main body 2 and to the reinforcing edge 7 by means of a connecting element 22 to be attached between it and the reinforcing edge 7 and the main body 2.
  • the connecting element 22 is again formed by a physically setting adhesive in a preferred embodiment, so that the surface cover 18 is permanently connected to the base body 2 and the reinforcing edge 7.
  • the surface cover 18 may be made of rubber, plastic, metal or wood and / or wood material or of a composite of plastic and / or metal and / or wood and is preferably formed as a shroud or cover sheet.
  • acrylonitrile-styrene-acrylic esters ASA
  • ABS acrylonitrile-butadiene-styrene
  • PP polypropylenes
  • laminates in particular HPL (high pressure laminates) or CPL (continuous pressure laminates)
  • HPL high pressure laminates
  • CPL continuous pressure laminates
  • the plastics used can be selected from the group of ionomers, polymethyl acrylates, polyamides and polyesters.
  • Important is the high scratch resistance of the cover film.
  • transparent cover films it is possible to print 7 imprints on the edge of the reinforcement, for example a company logo. Barcodes etc., which ones too are still legible and protected from damage after the cover film has been brought into the car. It is also possible that the shroud or the cover sheet is provided with imprints.
  • the metals used are preferably light metals or light metal alloys, in particular aluminum and its alloys.
  • edge bands are made of wood or wood material, these are in the form of a thin wooden band or in the form of a wood fiber, wood chip or wood veneer tape.
  • the surface cover 18 by a coating of polyurethane (PUR), ethylene vinyl acetate (EVA), polyamide melt adhesive or combinations thereof or synthetic resin, in particular Kondensationsharzleim, for example melamine resin (MF), phenolic resin, urea melamine, phenol resorcinol , is formed.
  • the coating such as melamine urea-formaldehyde resin (MUF) or phenol-formaldehyde resin is thereby applied liquid on the joining surface 21 of the reinforcing edge 7, the joining surfaces 20 of the base body 2 and / or the joining surface 19 of the surface cover 18 and at least partially in the joint surface 19; 20; 21 pressed under the action of temperature.
  • the reinforcing edges 7 are formed by a coating of plastic liquid in the initial state, such as polyurethanes (PU), ethylene vinyl acetate (EVA) or the like., Which applied to the joining surfaces 14a, 14b of the receiving groove 8a, 8b liquid and at least Part is pressed into the joint surfaces under the action of temperature.
  • plastic liquid such as polyurethanes (PU), ethylene vinyl acetate (EVA) or the like.
  • the surface cover 18 is flush with its longitudinal edges with the wide surfaces 5 of the main body 2.
  • the surface cover 18 is fastened in the form of a cover film interchangeably or detachably on the base body 2 and the reinforcing edge 7.
  • a heat-activated deactivatable adhesive which is arranged between the surface cover 18, the main body 2 and the reinforcing edge 7, is used as the connecting element 22.
  • Such adhesives are formed by physically setting adhesives such as solvent adhesives, dispersion adhesives, hot melt adhesives and contact adhesives, or chemically bonding adhesives such as polymerization adhesives, polyaddition adhesives, polycondensation adhesives.
  • the bringing and detaching of the cover sheet on the base body 2 is for example in the DE 101 14 161 A1 and the related, detailed disclosure is the subject of this disclosure.
  • Suitable adhesives are physically-setting adhesives in which volatile solvents are released before bonding, such as elastomers, polyurethanes (PUR), polychloroprene and the like.
  • the thickness 23 of the surface cover 18 is at most 3 mm, preferably between 0.1 mm to 2 mm.
  • a further embodiment of the reinforcing edge 7 is shown, which differs from the one described above in that on their narrow sides in the direction of the support body 2 inclined to each other joining surfaces 24 are formed.
  • the receiving groove 8a, 8b is formed complementary to the reinforcing edge 7 and is by in the direction of the plate edge 6a, 6b diverging joining surfaces 25 and parallel to the plate edge 6a, 6b extending joining surface 14a limited.
  • the modified reinforcement edge 7 is connected to the base body 2 via an adhesive to be introduced between the joining surfaces 14a, 14b, 15, 24, 25 in the receiving groove 8a, 8b.
  • This embodiment has the advantage that a self-centering of the reinforcing edge relative to the base body and a particularly tight joint connection between the base body and the reinforcing edge is achieved.
  • Fig. 5 shows a reinforcing edge 7 and receiving groove 8a, 8b, the mutually facing joining surfaces 14a, 15 have, for example, a sawtooth profiling. This achieves an improved adhesive bond between the main body 2 and the reinforcing edge 7.
  • the edge protection exclusively on a surface cover 18, via the connecting element 22, in particular the adhesive, at the plate edge 6a; 6b is attached.
  • the edge protector could nonetheless include, in addition to or instead of the surface cover 18, only one reinforcing edge 7, if required from a strength engineering point of view.
  • the base body 2 made of wood comprises two covering layers 3a, 3b running parallel to one another in relation to the fiber direction and a center layer 4 extending transversely thereto.
  • the cover layers 3a, 3b and middle layer 4 are each formed by a plurality of wooden strips which abut one another in a plane.
  • the wooden strips of the middle layer 4 are each provided with at least one relaxation groove 26, which are recessed in the wide surface and extending parallel to the plate longitudinal direction or plate transverse direction between the end faces of the respective wooden strip.
  • the depth of the relaxation groove 26 is between 50% and 70% of the thickness of a wooden strip.
  • a first expansion groove 26 extends from the first wide surface in the direction of the second wide surface and a second expansion groove 26 extends from the second wide surface toward the first wide surface.
  • both the first expansion groove 26 and the second expansion groove 26 can extend from only one broad surface in the direction of the other wide surface.
  • Each expansion groove 26 intersects at least one annual ring and is produced, for example, by sawing, milling or planing, etc.
  • At least one expansion groove 26 can be arranged in each case in the cover layers 3a, 3b, which are recessed in the wide surface and parallel between the end faces of the respective wood strip extend to the plate longitudinal direction or plate transverse direction.
  • the depth of the relaxation groove 26 is between 50% and 70% of the thickness of a wooden strip.
  • a plurality of expansion grooves 26 per cover layer 3a, 3b are provided. wherein both the first expansion groove 26 and the second expansion groove 26 of only one wide surface - which faces the layer 4 - extend in the direction of the other wide surface.
  • Each expansion groove 26 intersects at least one annual ring and is produced, for example, by sawing, milling or planing, etc.
  • the unwanted stresses and cracks in the base body 2 can also be avoided if the wooden strips of the middle layer 4 are spaced apart in the plane of the plate, so that between each of the wooden strips one of the relaxation groove 26 corresponding free space is formed.
  • the relaxation groove 26 forms an "artificial" defect.
  • the "artificially” produced defect or even “natural” defects, such as knotholes, resin galls and the like at the edge of the plate, can either be sealed directly from the surface cover 18 and / or by the above-described reinforcing edge 7.
  • the production of the formwork panel 1 according to the invention is preferably carried out in an automatic manufacturing plant, as in Fig. 7 is explained.
  • the entire manufacturing process can be divided into the production of plate blanks 27 and the processing of the plate blanks 27 into finished formwork panels 1.
  • the plate blanks 27 are already completely covered on their wide surfaces with a water-impermeable protective layer and have a multiple of the final format (for example, 2500 mm x 500 mm) of the formwork panel 1 corresponding raw format (for example, about 5000 mm x 1000 mm).
  • the blank blanks 27 After the blank blanks 27 have been cut in a continuous process only just prior to the attachment of the edge protector, it is possible to respond very quickly to format changes.
  • the time-consuming adaptation of a form frame to changing formats, as according to the DE 196 11 382 A is required, is not necessary by the method according to the invention.
  • the cut formwork panels 1 are then transferred via a handling device 29, in particular vacuum gripper 30 at a transfer station to a conveyor, not shown, from there the formwork panel 1 further workstations 31 to 35 are fed sequentially continuously in the clocked continuous process.
  • the shuttering panels 1 are calibrated in width by means of sawing, planing, milling or grinding tools, and the receiving grooves 8a are subsequently produced simultaneously on both panel edges 6a.
  • planing or milling tools 36 in the longitudinal direction plate continuously extending grooves 8a made synchronously.
  • the delivery of the sawing, planing or milling tools 36 is done manually or computer controlled.
  • the shuttering plates 1 are moved past the adhesive applicator devices 37 assigned to the respective plate edge 6a in succession, and simultaneously at least the joining surfaces of the receiving grooves 8a are continuously provided with adhesive.
  • the adhesive applicator 37 is formed either by rolls applied to the receiving groove 8a or by fixed slot dies, etc.
  • the formwork panels 1 pass successively into the next workstation 33, in which the longitudinal edges of each of a bearing roller 38, the reinforcing edges 7 on both sides of the formwork panel 1 continuously introduced and pressed into the grooves 8a with a roller 39.
  • the contact pressure of the rollers 39 acts perpendicular to the plate edge 6a.
  • the workstation 33 can be equipped with a curing device, not shown. This is formed, for example, by a hot-air curing device or high-frequency curing device, which acts on the joining connection between the reinforcement edge 7 and the support body 2 during the joining process with a hot air flow or high-frequency radiation field. Other energy sources, such as ultraviolet light or infrared are possible. By this measure, a rapid reaction of the adhesive is effected, whereby the setting process is shortened.
  • Another roller 40 or roller group per longitudinal plate side pushes the reinforcing edge 7 for further solidification of the compound again against the receiving groove 8a.
  • the reinforcing edges 7 are cut off at each longitudinal side of the plate by means of at least one separating tool 45 approximately to the length of the formwork panel 1.
  • adhesive application devices 41 assigned to the respective longitudinal side of the board are applied continuously to the joining surfaces 20 of the plate edges 6a and to the outer surfaces 16 or joining surfaces 21 of the reinforcing edges 7 facing away from the base body 2.
  • the adhesive application device 41 is again formed by a roller or slot nozzle.
  • the formwork panels 1 pass successively into the next workstation 35, in which each longitudinal side of a bearing roller 42, the surface covers 18 on both sides of the formwork panel 1 continuously brought and with one roller 43 against the lying in a plane joining surfaces 20, 21st be pressed.
  • the contact force of the rollers 43 acts perpendicular to the joining surfaces 20, 21.
  • the workstation 35 can be equipped with a curing device, not shown. This is formed for example by a hot air curing device or high-frequency curing device which acts during the joining process with a hot air flow or high-frequency radiation field on the joint connection between the support body 2, the reinforcement edge 7 and surface cover 18.
  • Other energy sources such as ultraviolet light or infrared are possible.
  • rollers 43 can each be followed by a further roller 44 or roller group, which press the Obertlächenabdeckungen 18 for further solidification of the compound once again against the base body 2 and the reinforcing edges 7.
  • the surface covers 18 are still cut in this workstation 35 on each long side of the plate by means of at least one separating tool 46 approximately to the length of the formwork panel 1.
  • the adjustment of the contact force of the rollers 39, 40, 43. 44 on the reinforcing edges 7 and surface covers 18 is preferably carried out computer-controlled or manually.
  • finished shuttering panels 1 are continuously removed from the workstation 35 via the conveyor and then optionally the edge guard attached to the plate edge 6b.
  • the embodiment described here provides that only at the joining surfaces of the receiving groove 8a and the joining surfaces of the base body 2 and the reinforcing edge 7 adhesive is applied. But it is also possible to apply in addition to the joining surfaces 15, 19 of the reinforcing edge 7 and surface cover 18, before they are joined.
  • an adhesive layer is provided in each case on the joining surfaces 15, 19 of the reinforcing edge 7 and surface cover 18.
  • the adhesive used is preferably a reactivatable adhesive system, for example a hot-melt adhesive.
  • the workstations 32, 34 ie those stations where the adhesive is applied, omitted.
  • the workstations 33, 35 ie those stations in which the joining process takes place, are then additionally provided with heating elements, etc., which serve to reactivate the adhesive system, for example to soften the hot melt adhesive above its melting temperature.
  • thermoplastic layer is brought to the joining surfaces 14a of the receiving groove 8a or joining surfaces 20, 21 of the base body 2 and the reinforcing edge 7 on both sides and the reinforcing edge 7 or the surface cover 18 under the action of a contact force of the rollers 39, 43 on Base body 2 and the main body 2 and the reinforcing edge 7 attached.
  • a further simplification of the manufacturing plant is achieved if the workstation 33 is designed to add both the reinforcing edge 7 and the surface cover 18 to the main body 2 or the main body 2 and the reinforcing edge 7.
  • the shuttering panels 1 can also be provided on the transverse plate sides with a reinforcing edge 7 and, optionally, surface cover 18. For this it is only necessary that the shuttering plates 1 rotated by 90 °, the workstations 31 to 35 or pass through a subordinate manufacturing plant with identically formed workstations, in which the operations described above are performed, only with the difference that the plate edges 6b processed and each provided with an edge protection.
  • the waste materials produced during processing are supplied, for example, to a residual waste treatment plant, to a power generation device and / or to a pressing device for the production of pellets.
  • the edge protection as preferably integrally manufactured in the extrusion process component of thermoplastic material based on fossil or renewable raw materials such as flax, hemp or cotton or the like.
  • thermoplastic material based on fossil or renewable raw materials such as flax, hemp or cotton or the like.
  • This material has similar mechanical and thermal properties to wood, but at the same time has the same properties as a thermoplastic.
  • Other materials such as wood and / or wood materials, metal, plastic and the like. And manufacturing methods can be used.
  • the profile-like edge protection has for this purpose a T-shaped cross-section.
EP08018641.4A 2007-10-30 2008-10-24 Panneau de coffrage Withdrawn EP2055864A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0175507A AT506045B1 (de) 2007-10-30 2007-10-30 Schalplatte und verfahren zu deren herstellung

Publications (2)

Publication Number Publication Date
EP2055864A2 true EP2055864A2 (fr) 2009-05-06
EP2055864A3 EP2055864A3 (fr) 2013-11-27

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EP08018641.4A Withdrawn EP2055864A3 (fr) 2007-10-30 2008-10-24 Panneau de coffrage

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010013350A1 (de) 2009-03-31 2010-11-25 Doka Industrie Gmbh Schalungsplatte für das Bauwesen und Verfahren zur Herstellung einer Schalungsplatte
EP2299029A1 (fr) * 2009-09-17 2011-03-23 DOKA Industrie GmbH Elément de coffrage doté d'une protection des angles et son procédé de fabrication
WO2011120841A1 (fr) 2010-03-30 2011-10-06 Doka Industrie Gmbh Plaque de coffrage pour le bâtiment et procédé de fabrication d'une plaque de coffrage
DE102013214391A1 (de) * 2013-07-23 2015-01-29 Lufthansa Technik Ag Brandhemmendes Kantenmaterial für Platten, korrespondierende Sandwichplatte sowie brandhemmende Deckschicht
WO2020233994A1 (fr) * 2019-05-17 2020-11-26 Ima Schelling Deutschland Gmbh Procédé de bordage servant à agencer une bande de chant sur un composant formant panneau, et panneau de meuble

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT14712U3 (de) * 2015-10-07 2016-09-15 Kohlbacher Gmbh Verstärkte Holzbeläge für den Gerüstbau (Verbundarbeitsbühne)

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DE2305797A1 (de) 1973-02-07 1974-08-08 Anton Krogner Schalungsplatte
DE19611382A1 (de) 1996-03-22 1997-09-25 Doka Ind Gmbh Schalplatte für Betonschalungen mit Kantenschutz und Zwischenschicht
EP1186398A1 (fr) 2000-09-05 2002-03-13 Alcan Technology & Management AG Protection du bord pour des panneaux composites ayant une âme en nid d'abeille
DE10114161A1 (de) 2001-03-22 2002-09-26 Thyssen Huennebeck Gmbh Schalungselement und Verfahren zum Herstellen und Reparieren desselben
EP1563970A1 (fr) * 2004-02-12 2005-08-17 IMA Klessmann GmbH Holzbearbeitungssysteme Procédé de fabrication de panneaux en bois ou matériaux de substitution du bois et panneau ainsi obtenu

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CH308511A (de) * 1954-12-08 1955-07-31 Meyer Stefan Verschalungsplatte für den Betonbau.
GB2101190B (en) * 1981-06-24 1986-02-12 Lamburn Alan S Reinforcing objects such as timber planks
FR2683574A1 (fr) * 1991-11-07 1993-05-14 Soframat Panneau de coffrage en un materiau stratifie.
US5651910A (en) * 1995-11-02 1997-07-29 Dallas E. Myers Concrete wall form and tie system

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
DE2305797A1 (de) 1973-02-07 1974-08-08 Anton Krogner Schalungsplatte
DE19611382A1 (de) 1996-03-22 1997-09-25 Doka Ind Gmbh Schalplatte für Betonschalungen mit Kantenschutz und Zwischenschicht
EP1186398A1 (fr) 2000-09-05 2002-03-13 Alcan Technology & Management AG Protection du bord pour des panneaux composites ayant une âme en nid d'abeille
DE10114161A1 (de) 2001-03-22 2002-09-26 Thyssen Huennebeck Gmbh Schalungselement und Verfahren zum Herstellen und Reparieren desselben
EP1563970A1 (fr) * 2004-02-12 2005-08-17 IMA Klessmann GmbH Holzbearbeitungssysteme Procédé de fabrication de panneaux en bois ou matériaux de substitution du bois et panneau ainsi obtenu

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010013350A1 (de) 2009-03-31 2010-11-25 Doka Industrie Gmbh Schalungsplatte für das Bauwesen und Verfahren zur Herstellung einer Schalungsplatte
EP2299029A1 (fr) * 2009-09-17 2011-03-23 DOKA Industrie GmbH Elément de coffrage doté d'une protection des angles et son procédé de fabrication
WO2011032716A1 (fr) 2009-09-17 2011-03-24 Doka Industrie Gmbh Elément de coffrage à protection des bords et son procédé de fabrication
WO2011120841A1 (fr) 2010-03-30 2011-10-06 Doka Industrie Gmbh Plaque de coffrage pour le bâtiment et procédé de fabrication d'une plaque de coffrage
DE102013214391A1 (de) * 2013-07-23 2015-01-29 Lufthansa Technik Ag Brandhemmendes Kantenmaterial für Platten, korrespondierende Sandwichplatte sowie brandhemmende Deckschicht
US9744746B2 (en) 2013-07-23 2017-08-29 Lufthansa Technik Ag Fire-retardant edge material for panels, corresponding sandwich panel, and fire-retardant cover layer
WO2020233994A1 (fr) * 2019-05-17 2020-11-26 Ima Schelling Deutschland Gmbh Procédé de bordage servant à agencer une bande de chant sur un composant formant panneau, et panneau de meuble

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Publication number Publication date
EP2055864A3 (fr) 2013-11-27
AT506045A1 (de) 2009-05-15
AT506045B1 (de) 2010-09-15

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