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US 4,301,990 AGranted
Formwork panel for concrete walls with wedge-type connections
AssigneePeri-Werk Artur Schworer KG
InventorArtur Schworer
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AssigneePeri-Werk Artur Schworer KG
InventorArtur Schworer
Estimating the term…
In a formwork panel for concrete walls having a forming skin carried on a steel frame comprising frame pieces extending along the edges of the said forming skin and at least one wedge slide guided on a cross-strut of the said frame, which wedge slide serves to press one end of a bar extending over the joint between two neighboring formwork panels against frame pieces of the said formwork panel, the slide (20) is guided on a cross-strut (5) and has an essentially U-shaped cross-section the legs (22) of which are provided with inwardly extending projections (24) which coact with projections (15) extending laterally from the cross-strut (5) to form a wedge-type connection. The height of the cross-strut (5) is reduced as compared to that of the frame pieces (4) by the value corresponding to the thickness of the cross bar (30) of the slide (20). The slide (20) can be moved into a position in which it does not project during transportation of the panels beyond the surface of the frame opposite the forming plane, and the wedge-type connection is very sturdy. (FIG. 3).
A formwork panel for use in a system for erecting concrete walls employing a plurality of formwork panels, adjacent panels being joined by a connecting bar, each said panel comprising a facing skin carried by a rectangular frame, having at least one cross-strut, said cross-strut being provided with oppositely formed projecting wedges extending laterally outward therefrom and a U-shaped slide member movably carried on said cross-strut, the legs of said U-shaped slide having oppositely extending inwardly directed projecting wedges said inwardly directed projecting wedges cooperating with the laterally extending projecting wedges to form a slidably engaging wedge coupling for removably securing said connecting bar to said cross strut within said U-shaped slide.
A formwork panel for forming concrete walls having a forming skin carried on a steel frame comprising frame pieces extending along the edges of said forming skin and at least one wedge slide guided on a cross-strut of the said frame, which slide serves to press a bar spanning a joint between two neighboring formwork panels against frame pieces of the said formwork panel, said wedge slide having an essentially U-shaped cross-section and being disposed at least partly about said bar and legs of said wedge slide being shaped to coact with wedge parts mounted on the strut to form a wedge-type connection on suitable movement of said wedge slide relative to said cross-strut, the legs having wedge surfaces inclined in a direction perpendicular to the direction of movement of said wedge slide such as to insure that the legs are drawn inwardly on connection of said wedge slide, said bar and said cross strut.
Dependencies are inferred from the claim text.