EP3947856A1 - Structure porteuse construite en matière synthétique pour un panneau de coffrage - Google Patents

Structure porteuse construite en matière synthétique pour un panneau de coffrage

Info

Publication number
EP3947856A1
EP3947856A1 EP20719945.6A EP20719945A EP3947856A1 EP 3947856 A1 EP3947856 A1 EP 3947856A1 EP 20719945 A EP20719945 A EP 20719945A EP 3947856 A1 EP3947856 A1 EP 3947856A1
Authority
EP
European Patent Office
Prior art keywords
support structure
edge
supports
supporting structure
reinforcement
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.)
Granted
Application number
EP20719945.6A
Other languages
German (de)
English (en)
Other versions
EP3947856B1 (fr
Inventor
Kai Hollmann
Marco Girardi
Luca Liverani
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.)
Polytech GmbH
Original Assignee
Polytech 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 Polytech GmbH filed Critical Polytech GmbH
Publication of EP3947856A1 publication Critical patent/EP3947856A1/fr
Application granted granted Critical
Publication of EP3947856B1 publication Critical patent/EP3947856B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • E04G9/05—Forming boards or similar elements the form surface being of plastics
    • 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
    • E04G2009/025—Forming boards or similar elements with edge protection by a flange of the board's frame
    • 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
    • E04G2009/028—Forming boards or similar elements with reinforcing ribs on the underside

Definitions

  • the invention relates to a support structure in plastic construction for a formwork panel, which has a support structure and a formwork skin positioned on the front side of the support structure and attached to the support structure, the support structure having two longitudinal edge supports and two transverse edge supports, characterized in that
  • the support structure has a main body made of plastic, to which the two longitudinal edge supports and the two transverse edge supports belong, and in the area of the front sides of the two longitudinal edge supports and / or the two transverse edge supports an edge protector which is used to protect at least part of the edge of the formlining after it has been attached is provided on the supporting structure, wherein the edge protection is made of a material different from the material of said supports of the supporting structure and has a region protruding forward from the relevant, said support; and or
  • the support structure has a main body made of plastic, to which the two longitudinal edge supports and the two transverse edge supports belong, and in the area of the front sides of the two longitudinal edge supports and / or the two transverse edge supports, and / or in the area of the rear sides of the two longitudinal edge supports and / or the two transverse edge supports , a reinforcement made of a material different from the material of the said carriers of the supporting structure.
  • Support structures in plastic construction for formwork panels are known. Compared to supporting structures made of wood or metal, they have a whole range of advantages: high durability, low weight, low aging, inexpensive production and good recyclability. On the disadvantage side, it should be noted: To achieve high strength values, efforts are required in the construction, and the practical design of the transition to the formlining is a challenge.
  • edge of the formwork facing is understood to mean the outline area of the formwork facing, extending from the formwork facing front (which is the shaping surface for the concrete) to the formwork facing rear.
  • edge of the formwork facing is not intended to denote the line at which the surface of the formwork facing front intersects with the outline area of the formwork facing, and is not intended to denote a line on which a virtual plane on the rear side of the formwork facing, parallel to the front of the formlining, with the outline of the formlining.
  • the support structure according to the invention has an edge protection for protecting at least part of the edge of the formwork skin after it has been attached to the support structure.
  • the edge of the formlining is a comparatively sensitive area of the formwork facing, which can be damaged relatively easily, be it when erecting formwork from closely positioned formwork panels, or when handling the formwork panels in the rough construction site. This sensitivity is particularly pronounced when formwork panels with a support structure made of plastic are used.
  • the invention creates a support structure with very effective provision for protecting the edge of the formwork facing to be attached to the support structure.
  • the protruding area of the edge protection mentioned at the beginning can protrude so far that the outline of the formlining is protected up to the transition to the formwork facing front.
  • the support structure according to the invention in the area of the front sides of the two longitudinal edge supports and / or the two transverse edge supports, and / or in the area of the rear sides of the two longitudinal edge supports and / or the two transverse edge supports, a reinforcement made of one of the material of the aforementioned supports Support structure on different material. Providing such a reinforcement means complicating the support structure. On the advantage side, however, there is an increase in the load-bearing capacity of the supporting structure, which is achieved with a lower weight than e.g. would be possible through increased use of plastic material in the support structure.
  • the reinforcement in the area of the front sides of the two longitudinal edge supports and / or the two transverse wheel supports can also be designed as the edge protection described. Or described in a different perspective: The edge protection described can be designed so that it also has the function of reinforcement in the relevant areas of the supporting structure.
  • the support structure according to the invention has an edge protection and / or a reinforcement, which consists of a separately produced part or of several separately produced parts, which is or is combined with the support structure main body after its production .
  • edge protection and / or the To incorporate reinforcement in the relevant area of the main body in the course of the manufacture of the supporting structure main body.
  • the support structure according to the invention can additionally be characterized in that the edge protection and / or the (relevant) reinforcement contains several strips of material.
  • the expression "the (relevant) reinforcement” was chosen because in the first paragraph of the description two types of reinforcement are addressed, namely a reinforcement assigned to the front side of the supporting structure (or the front sides of the two longitudinal edge beams and / or the front sides of the two transverse edge beams) , and a reinforcement assigned to the rear of the support structure (or the rear of the two longitudinal edge supports and / or the rear of the two transverse edge supports).
  • the construction of the edge protection and / or the (relevant) reinforcement from strips of material offers the advantage of being inexpensive to manufacture.
  • the material strips can be used specifically where edge protection and / or reinforcement are most likely needed.
  • edge protection and / or the (relevant) reinforcement has the shape of a rectangular frame.
  • This edge protection and / or this reinforcement are particularly comprehensive in their function, and the frame can be combined very efficiently with the main body of the supporting structure.
  • edge protection which is also reinforcement for the front side of the supporting structure
  • reinforcement made of several material strips for the rear side of the supporting structure.
  • the support structure according to the invention can additionally be characterized in that the edge protection - seen in a cross-sectional plane at right angles to the longitudinal extension of the relevant support - has a first leg essentially parallel to the front side of the relevant support and a second leg protruding forward from the first leg.
  • This structure optimally combines the functions of combining the edge protection with the main body of the supporting structure and protecting the edge of the formlining.
  • the design can be such that the edge protection essentially only these two legs contains or consists of these two legs.
  • the edge protector can have further features, for example a third leg which protrudes from the first leg to the rear.
  • the support structure according to the invention can also be characterized in that the reinforcement in question - viewed in a cross-sectional plane at right angles to the longitudinal extension of the support in question - has a horizontal rectangular cross-section.
  • the term "horizontal rectangular cross-section” means that - seen in the cross-sectional plane mentioned - the cross-section of the reinforcement has a longer dimension measured parallel to the front or rear of the main body and a shorter dimension (in most cases a significantly shorter dimension) measured at right angles to it . Reinforcements with this geometry are particularly easy to manufacture and can be combined with the main body.
  • metal or elements made of long-fiber-reinforced plastic are good options.
  • steel or light metal in particular aluminum, aluminum alloys and magnesium
  • the edge protection or its parts and / or the reinforcement (s) or their parts can be sheet metal parts.
  • thermoset plastic parts with long fibers embedded therein e.g. Glass fibers, aramid fibers and carbon fibers called.
  • reinforcements made of metal can be implemented as sheet metal parts, the main plane of which is essentially parallel to the front of the main body.
  • the edge protection according to the invention can be designed as a sheet metal part or as several sheet metal parts (each) with a curved edge for the edge protection function.
  • the support structure according to the invention can also be characterized in that the edge protection and / or the (relevant) reinforcement has holes and the relevant support has several extensions on its front and / or rear each protruding into one of these holes.
  • the row of holes can, but does not have to, be straight; It is only important that several holes are provided along the relevant support in the edge protection or reinforcement. are seen.
  • the form-fitting hole / extension interventions effect a shear-proof anchoring of the edge protection or the reinforcement on the relevant support, so that the edge protection and the relevant support or reinforcement and the relevant support form a unit with regard to the load-bearing capacity of the supporting structure.
  • Shear-resistant in this context means that forces that act parallel to the front of the support structure are transmitted in a form-fitting manner.
  • the support structure according to the invention can also be characterized in that the edge protection and / or the (relevant) reinforcement is at least partially embedded in the plastic material of the relevant support.
  • a typical example of how such an embeddedness can be produced is set out below in connection with a production method according to the invention.
  • the embedding can go so far that at least the relevant part of the edge protection or the reinforcement is surrounded all around by the plastic material of the relevant carrier. But you can also go less far and e.g. embed the edge protection or the reinforcement only, so to speak, on three sides in the plastic material of the carrier and leave a fourth side uncovered by the plastic material.
  • the embedding in the plastic material of the carrier in question can also be combined with the holes / projections engagement described in the previous paragraph.
  • the support structure according to the invention can also be characterized in that its main body has the two longitudinal edge supports, the two transverse edge supports and several transverse intermediate supports.
  • the design can be such that the main body has no further carriers or no further parts at all apart from these carriers. However, the design can also be such that the main body has further parts, e.g. Longitudinal intermediate support.
  • the main body can be a one-piece plastic part.
  • the main body can be a one-piece injection molded part made of plastic.
  • the main body can be made of fiber-reinforced plastic, in particular glass fiber-reinforced plastic.
  • the support structure according to the invention can additionally be characterized in that the two longitudinal edge supports and / or the two transverse edge supports are double walls with two partial walls and with first connecting walls in between, which extension planes are transverse to the longitudinal extension direction of the respective carrier Ha- ben, are trained.
  • the two longitudinal edge supports and / or the two transverse edge supports can be designed as double walls with two partial walls and with a second connecting wall in between on the front of the double wall or with a third connecting wall in between on the back of the double wall.
  • the described double-wall designs of the two longitudinal edge supports and / or the two transverse edge supports result in a support structure in which the material utilization of the plastic is optimized.
  • the support structure according to the invention can additionally be characterized in that at least a partial number of the transverse intermediate supports have two partial walls which are further apart on the side closer to the front side of the support structure than on the front the side further away from the supporting structure.
  • a trapezoidal shape or a triangular shape are typical embodiments, viewed in a section transverse to the longitudinal direction of extension of the transverse intermediate supports.
  • the support structure according to the invention can additionally be characterized in that at least a partial number of the transverse intermediate supports - measured at right angles to the front of the support structure - is less high than the support structure and more distant from the front of the support structure Side ends at a distance from the back of the support structure. In other words, at least some of the transverse intermediate supports only take up part of the height of the support structure.
  • the support structure according to the invention can also be characterized in that there is a support plane for the formwork facing on its front side, to which support plane areas on the front sides of the two longitudinal edge girders, areas on the front sides of the two transverse edge girders and contribute areas on the front sides of the transverse intermediate supports.
  • the formlining is supported by the longitudinal edge girders, the transverse edge girders and the relevant transverse intermediate girders, so that a formwork facing can be achieved with relatively small spacing between supports.
  • the support structure as it has been disclosed in the six preceding paragraphs, represents an invention of its own even without the presence of the edge protection disclosed in this application and / or without the presence of the reinforcement or reinforcements disclosed in this application.
  • the novelty in this case lies in the disclosed construction of the main body or the supporting structure.
  • What has been said in the two preceding sentences also applies to a formwork panel which has this support structure and a formwork skin, in particular made of plastic, attached to the support structure.
  • Another object of the invention is a formwork panel, characterized in that it has a support structure according to the invention, as has been disclosed in the previous part of the description, and a formwork skin positioned on the front of the support structure and attached to the support structure.
  • the formwork skin can be made of plastic.
  • the formwork panel according to the invention can furthermore be characterized in that the edge protection and / or the reinforcement provided in the area of the front sides of the relevant girders is positioned in a sandwich-like manner between the relevant girders of the support structure and the formwork facing an attachment of the edge protection and / or the reinforcement is formed on the support structure.
  • This is a particularly efficient way of integrating the edge protection and / or the reinforcement in question into the formwork panel.
  • the formwork skin can have clip extensions formed on its rear side, with which it is attached to the support structure.
  • the formwork skin can have projections formed on its rear side and the formwork skin can be fastened to the supporting structure by means of screws which are screwed into at least a partial number of these projections from the rear side of the supporting structure.
  • Screw in means that the screw in question is positively seated in the material of the supporting structure. It can be self-tapping screws. If you work with screws for fastening the formwork facing to the support structure, it is a possibility according to the invention that at least a partial number of these screws go through a hole in the reinforcement provided in the area of the backs of the respective support, whereby this reinforcement on the support structure is attached.
  • each screw can be used both for fastening the edge protection and / or the reinforcement provided in the area of the front sides of the respective carrier and for fastening the in the area of the rear sides of the respective support provided reinforcement serve.
  • Another object of the invention is a method for producing a support structure according to the invention, as has been disclosed in the previous part of the description, characterized in that the edge protection is at least partially and / or the reinforcement is at least partially positioned in an injection mold and during injection molding of the support structure is at least partially embedded in the plastic of the support structure by overmolding.
  • "Overmol-o ding” refers to a production method in which plastic, especially during injection molding, embeds a part previously placed in the injection mold - at least on one side - in such a way that a uniform component is created in close connection between the two components. 5
  • edge protection summarizes the multiple components that together form the edge protection (provided that the edge protection consists of several components). The same applies accordingly to the reinforcement provided in the area of the front sides of the respective girders and to the reinforcement provided in the area of the rear sides of the respective girders (provided that they consist of several components at all).
  • FIG. 1 a support structure for a formwork panel, in a perspective illustration and with a view obliquely from above onto the front side of the support structure;
  • FIG. 2 shows a detail from FIG. 1 on a larger scale
  • FIG. 3 shows a section according to III-III in FIG. 1;
  • FIG. 4 shows a section according to IV-IV in FIG. 2;
  • FIG. 5 shows a main body of the support structure from FIG. 1, after removal of an edge protector, in a perspective illustration and looking obliquely from above onto the front side of the main body;
  • FIG. 6 shows a detail from FIG. 5 on a larger scale
  • FIG. 7 shows an edge protector as it was part of the supporting structure in FIGS. 1-4, in a perspective representation and with a viewing direction obliquely from above onto the front side of the edge protector;
  • FIG. 8 shows a detail from FIG. 7 on a larger scale
  • FIG. 10 shows a formwork panel, which consists of a support structure with edge protection and a formwork skin attached to the support structure, in a section in the transverse direction of the formwork panel;
  • FIG. 1 1 shows a detail of FIG. 10 on a larger scale
  • FIG. 12 shows a formlining as it is part of the formwork panel from FIG. 10, in a perspective representation and looking at an angle from above onto the rear side of the formwork facing;
  • FIG. 13 shows a detail from FIG. 12 on a larger scale
  • FIG. 14 shows the formwork panel from FIG. 10, in a perspective exploded view and with a view obliquely from above onto the rear side of the formwork panel;
  • FIG. 14 shows the formwork panel from FIG. 10, in a perspective exploded view and with a view obliquely from above onto the rear side of the formwork panel;
  • FIG. 15 shows the formwork panel from FIG. 14 in the assembled state, in a perspective illustration and with a viewing direction obliquely from above onto the formwork skin;
  • FIG. 16 shows the formwork panel from FIG. 15, in a perspective illustration and with a viewing direction obliquely from above onto the rear side of the formwork panel;
  • FIG. 17 shows a detail of a second exemplary embodiment of a formwork panel, in a section in the transverse direction of the formwork panel as in FIG. 11;
  • FIG. 18 shows a detail of the formwork facing provided in the formwork panel from FIG. 17 in a perspective illustration and with a view obliquely from above onto the rear side of the formwork facing, as in FIG. 13;
  • FIGS. 11 and 17 shows a detail of a third exemplary embodiment of a formwork panel, in a section in the transverse direction of the formwork panel, as in FIGS. 11 and 17;
  • FIGS. 11, 17 and 19 shows a detail of a fourth exemplary embodiment of a formwork panel, which additionally has a reinforcement in the area of the rear sides of the two longitudinal edge supports, in a section in the transverse direction of the formwork panel, as in FIGS. 11, 17 and 19;
  • FIG. 21 shows the formwork panel from FIG. 20, in a perspective exploded view and looking obliquely from above onto the rear side of the formwork panel;
  • FIG. 22 shows a fifth embodiment of a support structure, in a section in the transverse direction of the support structure, like FIGS. 4, 11, 17 and 19;
  • FIG. 23 shows a detail of the section from FIG. 22, on a larger scale.
  • the support structure 2 shown in Fig. 1 has a main body 4 made of plastic and an edge protector 12 made of metal for protecting the edge of a Support structure 2 to be attached formwork (see Fig. 10-16).
  • the main body 4 is generally rectangular in plan view.
  • the edge protection 12 has the shape of a rectangular frame in plan view.
  • the side of the support structure 2 pointing upwards in FIG. 1 is its front side 80.
  • the opposite side of the support structure 2 is its rear side 82.
  • the main body 2 has two longitudinal edge supports 6, two transverse edge supports 8 and, in this exemplary embodiment, a total of seven transverse intermediate supports 10.
  • the main body 4 is a one-piece injection-molded part made of plastic.
  • the transverse edge girders 8 are perpendicular to the longitudinal edge girders 6 and are about half as long as the longitudinal edge girders 6.
  • the transverse intermediate girders 10 run parallel to the transverse edge girders 8.
  • the longitudinal edge girders 6 have a length of a little less than 2 m - measured over everything and the transverse edge girders 8 have a length of a little less than 1 m - measured over everything on the outside.
  • Other formats of the main body 4 are possible. Further geometric details of the carriers 6, 8, 10 are described below.
  • the edge protector 12 can be seen in more detail in FIGS. 2, 3, 4.
  • the edge protector 12 is in one piece and has the shape of a rectangular frame with a large free interior space, the four sections 14 of the edge protector 12 adjoining each other at a corner each have a - Width 16 measured transversely to the longitudinal extension of section 14.
  • the width 16 is so large that the relevant section 14 almost completely covers the width of the associated longitudinal edge support 6 or the width of the associated transverse edge support 8. Further details are described below.
  • the relevant section 14 edge protection 12 Seen in a cross-sectional plane at right angles to the longitudinal extension of the relevant support 6 or 8 (see Figs. 3 and 4), the relevant section 14 edge protection 12 has the shape of a lying rectangle with a curved, lateral edge 18 along the relevant outer edge of the support structure 2.
  • the thickness 20 of the cross-sectional rectangle measured vertically in FIGS. 3 and 4 is small compared to the width 16.
  • FIG. 2 it can be seen particularly clearly that each of the four sections 14 of the edge protector 12 has a row of, for example, round holes 22 along its outer edge. In the illustrated embodiment, there are thirty-nine holes along each longitudinal section 14 and twenty holes 22 along each transverse section 14. As best seen in FIGS.
  • each longitudinal edge support 6 and each transverse edge support 8 has a series of on its front side Short extensions 24 that are circular in plan view. Positioning and size of the extensions 24 are matched to the holes 22 of the edge protection 12. When the main body 4 and the edge protection 12 are joined together, the extensions 24 each go into one of the holes 22, as can best be seen in FIG. This multiple hole 22 / extension 24 engagement creates an overall form-fitting fixation of the edge protection 12 with the front side 80 of the main body 4, this positive connection being effective with regard to forces that act parallel to the front side of the main body 4.
  • Each of the four sections 14 of the edge protection 12 has a series of holes 16 which are rectangular in plan view.
  • the holes 26 are positioned along the inner edge of the edge protector 12. In this exemplary embodiment there are a total of nine holes 26 along each longitudinal edge support 6 and five holes 26 along each transverse edge support 8.
  • each longitudinal edge support 6 and each transverse edge support 8 has a flange 34 facing outwards (i.e. away from the center of the main body 4).
  • the extensions 24 described are provided on the front side of the flange 34.
  • the edge protection 12 rests with its first leg 36 parallel to the front side 80 of the main body 4 on the front side of the flange 34 and covers the space between the two partial walls 28 and 30.
  • the first sight Angle 36 ends on the outwardly facing side of the inner partial wall 30, but could also rest on the inner partial wall 30 at the front.
  • the transition from the first leg 36 to the second leg 37 is a curve with a relatively small radius of curvature. In FIG.
  • first connecting walls 38 each have a plane of extent which is perpendicular to the direction of longitudinal extent of the relevant carrier 6 or 8.
  • the rectangular holes 26 of the edge protection 12 are positioned so that they are in front of the free space between the two part walls 28 and 30.
  • Holes 40 are provided in the third connecting wall 32, each at a position which is aligned with the position of a rectangular hole 26. The function of the pairs of holes 26 and 40 will be described below.
  • 5 and 6 show the main body 4 without the edge protection 12, so that one can see into the space between the two partial walls 28 and 30 at the longitudinal edge walls 6 and the transverse edge walls 8.
  • Figures 10, 1 1, 14, 15, 16, 17, 19, 20, 21, 22, 23 show a formwork panel 50 as is achieved by attaching a formwork skin 52 to the previously described support structure 2 or to the second to fifth embodiment support structure 2 yet to be described has been produced.
  • the formwork skin 52 consists of plastic and has the shape of a plate with extensions 60 to be described below on its rear side pointing downward in FIG. 10. Compared to its plan view size of essentially 2 x 1 m, this plate has a small thickness of a few centimeters.
  • the formwork skin 52 has a top view size such that it fits tightly on and into the edge protection 12, with an edge area 54 of the formwork skin 52 resting all around on the first leg 36 of the edge protection 12 and the front end of the inner partial wall 30 and with the edge 56 of the Formwork skin 52 all around from the second leg 37 or the bent-up edge 18 of the edge protection 12 is bordered.
  • the second leg 37 of the edge protection 12 protrudes so far forward from the front of the relevant longitudinal edge support 6 or transverse edge support 8 that the edge 56 of the formwork skin 52 is just completely covered.
  • the front side of the formwork skin 52 pointing upward in FIG. 10 lies in the same plane as the upper end of the second leg 37 of the edge protection 12 in FIGS. 10 and 11.
  • the already mentioned rear extensions 60 of the formwork skin 52 are positioned and dimensioned in such a way that they each fit into one of the described holes 26 of the edge protection 12.
  • the shape of the extensions 60 can best be seen in FIGS. 11 and 13. Following the rear side of the formwork skin, the extensions 60 have a rectangular shape for part of their length - measured vertically in FIGS. 10 and 11 - with which they are each fit tightly in one of the holes 26.
  • the relevant extension 60 is cylindrical on the outside with two small stiffening ribs.
  • the extension 60 in question is hollow on the inside for at least part of its length.
  • a screw 62 is screwed in from the lower rear side 82 of the supporting structure 2 or the formwork panel 50 in FIG . With its upper end region in FIGS. 10 and 11, the screw 62 is screwed into a cavity 59 of the associated extension 60 and is thus connected to the inner circumference of the cavity 59 in a form-fitting manner.
  • the head 64 of the screw 62 sits at the rear end of the relevant hole 40 in the third connecting wall 32.
  • the screws 62 pull the formwork skin 52 with the flat part of its rear side against the first leg 36 of the edge protection 12, the inner partial wall 30 of the edge support 6 and 8, and, as will be described in greater detail below, the front sides of the transverse intermediate supports 10.
  • the edge protector 12 is clamped in position between the main body 4 and the formwork skin 52, as it were.
  • the transverse intermediate supports 10 - seen in a section transverse to their longitudinal extension - have a cross section in the form of an open trapezoid.
  • the open, larger trapezoidal side is located on the front 80 of the main body 4.
  • the shorter, closed trapezoidal side 67 is approximately halfway between the front 80 and the rear 82 of the main body 4.
  • On the open trapezoidal side there is one left and one right narrow flange 68 running in the direction of the length of the main body 4 protrudes (see Fig. 2).
  • Each transverse intermediate support 10 has four connecting walls 70 distributed over its length.
  • each transverse intermediate support 10 is essentially the same as the clear distance between two adjacent transverse intermediate supports 10 or between the last transverse intermediate support 10 and the relevant transverse edge support 8.
  • the front sides of the flange 68 lie in the same plane such as the front of the first leg 36 of the edge protector 12 and the front end of the inner partial wall 30 of the edge support 6 and 8, respectively.
  • FIG. 14 shows once again how the components main body 4, edge protection 12, formwork skin 50 are joined together by means of screws 62.
  • 15 and 16 illustrate the formwork panel 50 in the fully assembled state.
  • FIGS. 17 and 18 differs from the embodiment described so far in that the two partial walls 28 and 30 of the longitudinal edge support 6 and the transverse edge support 8 on the front of the double wall by a second connecting wall 72, which is parallel to the front 80 of the main body 4 is connected.
  • a third connecting wall 32 as was present in the first exemplary embodiment, is not present in the second exemplary embodiment.
  • the extensions 60 on the rear side of the formwork skin 52 are designed as clip extensions 60.
  • round holes 74 are provided in the edge protection 12.
  • the formwork skin 52 is connected to the supporting structure 4 in a less labor-intensive manner in that its clip extensions 72 are inserted through the described holes 74 in the edge protection 12 and through holes 76 aligned therewith in the relevant second connecting wall 72. In the completely inserted state, the end regions of the clip projections 60 diverge elastically and snap into place behind the rear side of the second connecting wall 72 concerned.
  • the width 16 of the edge protection 12 is smaller than in the previous embodiments.
  • the edge protection 12 no longer extends over the free space between the two partial walls 28 and 30 of the relevant longitudinal edge support 6 or transverse edge support 8.
  • each edge support 6 or 8 is Side a third connecting wall 32 is provided, but no second connecting wall 72, as was present in the second embodiment.
  • the rear extensions 60 of the formwork skin 50 are designed so that they fit tightly into the free space between the two walls 28 and 30 of the relevant edge support 6 and 8, respectively.
  • screws 62 go from the rear of the main body 4 into a cavity 59 of an extension 60.
  • the fourth exemplary embodiment shown in FIGS. 20 and 21 differs from the first exemplary embodiment in that a reinforcement 84 is provided in the longitudinal edge girders 6 in the area of the rear sides.
  • the reinforcement 84 includes two strip-shaped elements 86 made of metal.
  • the strip-shaped elements 86 are each punched out of sheet metal.
  • the strip-shaped elements 86 are each as long as the longitudinal edge supports 6 on their rear side.
  • the strip-shaped elements 86 each have a row of 39 holes 22.
  • a rear extension 24 of the relevant longitudinal edge carrier 6 protrudes into 30 of these holes 22, as has been described in the first embodiment for the front side 80 of the support structure 2.
  • the holes 22 are located approximately in the middle of the width 16 of the relevant strip-shaped element 86.
  • a screw 62 each passes through the remaining 9 holes 22, which are distributed over the length of the relevant strip-shaped element 86.
  • a hole 88 is provided in the third connecting wall 32 at points that are aligned with these holes 22 for screws 62.
  • the screw head 64 of each of these screws 62 is located on the rear side of the respective strip-shaped element 86.
  • a front edge protection 12 and a rear reinforcement of the support structure 2 are provided.
  • This exemplary embodiment differs from the exemplary embodiments described above primarily in that the edge protection 12 and the reinforcement 84 are made by so-called overmolding with the main body 4 of the edge protection 12 and the reinforcement 84 are made by so-called overmolding with the main body 4 of the edge protection 12 and the reinforcement 84 are made by so-called overmolding with the main body 4 of the
  • Support structure 2 have been combined.
  • four angled rail-like metal parts 90 which together form the edge protection 12 at a corner, are positioned in an injection mold in such a way that essentially Chen only the relevant second leg 37 of the edge protection 12 was not in the interior of the mold cavity of the injection mold.
  • two strip-shaped elements 86 have been positioned in the mold cavity of the injection mold that they are almost completely enclosed by the injected plastic when the mold cavity is closed.
  • the four angled rail-like parts 90 each have a miter bevel at their two ends, so that the second legs 37 of these parts in their entirety form a protruding edge to protect the edge 56 of the formwork skin 50.
  • both the angled rail-shaped parts 90 and the strip-shaped elements 86 each distributed over the length, have several holes 92.
  • these parts To position the angled rail-shaped parts 90 and the strip-shaped elements 86 in the injection mold, these parts have been placed on stepped positioning pins, one pin per hole 92.
  • a frame-shaped part can also be positioned in the injection mold.
  • the edge protection 12 also forms a reinforcement in the area of the front sides of the two longitudinal edge supports 6 and the two transverse edge supports 8. According to the second aspect mentioned at the beginning, the invention also creates a support structure 2 in which no edge protection 12, but only front and / or rear reinforcement of the
  • Support structure 2 or the longitudinal edge support 6 and / or the transverse edge support 8 is provided.
  • edge protector 12 two or four strip-shaped elements are provided, which are designed similarly to the strip-shaped elements 86 described on the rear side or which are designed similarly to the edge protector 12, but without a protruding edge 18.
  • edge protection 12 does not necessarily have to cover the two longitudinal edges of the formwork facing 50 and the two transverse edges of the formwork facing 50.
  • edge protection 12 does not necessarily have to cover the two longitudinal edges of the formwork facing 50 and the two transverse edges of the formwork facing 50.
  • the reinforcement 84 which was only provided in the area of the longitudinal edge girders 6 in the exemplary embodiments described, also "all around", that is, both on the longitudinal edge girders 6 (front and / or rear side) and on the transverse edge girders 8 ( front and / or rear) can be provided.
  • the especially metallic edge protection represents the area of the support structure 2 or the formwork panel 50 that protrudes furthest on the outside and thus provides particularly effective protection for the edge 56 of the formwork skin 50.
  • the front reinforcement and / or the rear reinforcement 84 can pass through Parts can be formed whose dimension - measured at right angles to the front of the support structure 2 - is smaller than the dimension measured in the direction parallel to the front of the support structure 2.
  • the front reinforcement and / or the rear reinforcement 84 can be applied to the area of the front of the support structure (or the front of the two longitudinal edge supports and / or the two transverse edge supports) and / or to the area of the rear of the support structure 2 (or the area of the Rear side of the two longitudinal edge supports and / or the two transverse edge supports) be concentrated so that they provide an increase in strength of the supporting structure 2 in an optimal manner.
  • the described reinforcement 84 in the area of the rear of the longitudinal edge support 6 reinforces both the outside of the outer partial wall 28 in its rear end area and the rear end of the double wall of the longitudinal edge support 6, which increases the stability against damage in these two areas.
  • FIG. 3 shows the engagement of the extensions 24 in the holes 22.
  • interventions also exist in the second, third and fourth exemplary embodiments, but in front of and behind the plane of the drawing in FIGS. 17 and 19 and 20, respectively.
  • edge protection 12 and / or the reinforcement 84 look quite similar to the drawn sheet metal parts, possibly with small roundings instead of sharp corners and a little thicker in the perpendicular to the front 80 of the support structure 2 measured dimension.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

La présente invention concerne une structure porteuse construite en matière synthétique pour un panneau de coffrage qui comprend une structure porteuse et une peau de coffrage positionnée sur la face avant de la structure porteuse et installée sur la structure porteuse. La structure porteuse possède deux montants longitudinaux externes et deux montants transversaux externes et est caractérisée en ce que la structure porteuse comprend un corps principal en matière synthétique dont font partie les deux montants longitudinaux externes et les deux montants transversaux externes, et comprend, au niveau des faces avant des deux montants longitudinaux externes et/ou des deux montants transversaux externes, une protection des arêtes qui est destinée à protéger au moins une partie de l'arête de la peau de coffrage après son installation sur la structure porteuse, la protection des arêtes est faite d'un matériau différent du matériau desdits montants de la structure porteuse et a une zone faisant saillie vers l'avant depuis ledit montant concerné ; et/ou en ce que la structure porteuse comprend un corps principal en matière synthétique, dont font partie les deux montants longitudinaux externes et les deux montants transversaux externes, et au niveau des faces avant des deux montants longitudinaux externes et/ou des deux montants transversaux externes, et/ou au niveau des faces arrière des deux montants longitudinaux externes et/ou des deux montants transversaux externes, un renforcement fait d'un matériau différent du matériau desdits montants de la structure porteuse.
EP20719945.6A 2019-04-01 2020-03-31 Structure porteuse construite en matière synthétique pour un panneau de coffrage Active EP3947856B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019002356.0A DE102019002356A1 (de) 2019-04-01 2019-04-01 Tragstruktur in Kunststoffbauweise für Schalungspaneel
PCT/EP2020/059109 WO2020201278A1 (fr) 2019-04-01 2020-03-31 Structure porteuse construite en matière synthétique pour un panneau de coffrage

Publications (2)

Publication Number Publication Date
EP3947856A1 true EP3947856A1 (fr) 2022-02-09
EP3947856B1 EP3947856B1 (fr) 2023-09-20

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EP20719945.6A Active EP3947856B1 (fr) 2019-04-01 2020-03-31 Structure porteuse construite en matière synthétique pour un panneau de coffrage

Country Status (6)

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US (1) US20220049508A1 (fr)
EP (1) EP3947856B1 (fr)
CN (1) CN113906187A (fr)
CA (1) CA3135318A1 (fr)
DE (1) DE102019002356A1 (fr)
WO (1) WO2020201278A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020111413A1 (de) * 2020-04-27 2021-10-28 Peri Gmbh Schnellverbindungssystem

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3810613A1 (de) * 1988-03-29 1989-10-19 Huennebeck Roero Gmbh Profilstab
DE19724701A1 (de) * 1996-06-26 1998-01-02 Gerhard Dingler Bauelement und Verfahren zur Herstellung eines Bauelementes
IT1315769B1 (it) * 2000-12-13 2003-03-18 E M As Srl Elementi modulari per la realizzazione di casseforme
CN2499493Y (zh) * 2001-10-10 2002-07-10 陈广振 建筑施工用组合塑钢模板
KR100469849B1 (ko) * 2002-09-04 2005-02-02 주식회사 삼우공간건축사사무소 보강 구조를 가지는 유로폼 타입 거푸집 및 그 제조방법
DE102009036647A1 (de) * 2009-08-07 2011-02-17 Hofin Gmbh Betonierungs-Schaltafel
DE102013107303B4 (de) * 2013-07-10 2024-06-06 Polytech Gmbh Schaltafel für Betonierungsschalungen
DE102015223764A1 (de) * 2015-11-30 2017-06-01 Peri Gmbh Schalelement und Deckenschalung mit einem solchen Schalelement
CN105735632A (zh) * 2016-02-25 2016-07-06 中国建筑股份有限公司 一种多次周转使用的带框塑料模板及其施工方法
CN206428964U (zh) * 2017-01-04 2017-08-22 广州市艺达机械有限公司 一种建筑用组合型铝模板装置
CN108316643A (zh) * 2018-03-22 2018-07-24 浙江谊科建筑技术发展有限公司 一种啮合型组合铝模板

Also Published As

Publication number Publication date
EP3947856B1 (fr) 2023-09-20
CA3135318A1 (fr) 2020-10-08
DE102019002356A1 (de) 2020-10-01
CN113906187A (zh) 2022-01-07
WO2020201278A1 (fr) 2020-10-08
US20220049508A1 (en) 2022-02-17

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