Patent ID: 6138435
Filing Date: 2000-10-31
Classification: B32B,B61D,E04C

Abstract:
A sheetlike composite element comprising a core element, the core element having opposing spaced outer surfaces, an outer layer which is connected to one of the opposing spaced outer surfaces of the core element, another outer layer which is connected to the other opposing spaced outer surface of the core element, and a profile for the reinforcement of the sheetlike composite element, the profile contacting said core element, the profile having two essentially parallel arms, which act as bearing surfaces selected from the group consisting of inner bearing surfaces and outer bearing surfaces, for the two outer layers and whose geometric spacing is at least as great as the distance between the two outer layers, having a further bearing surface for non-outer, narrow side of the core element, which further bearing surface is arranged between planes defined by said parallel arms bearing surfaces, and having at least one continuous connecting crosspiece between said parallel arms, and forming with arms a shaped arrangement selected from at least one member of the group consisting of an essentially U-, Z- and H-shaped arrangement in cross-section in the latitudinal direction of the profile, and said further bearing surface having outer extensions in portion which contact said core element, the further bearing surface for said narrow side of the core element is separated from said at least one connecting crosspiece by at least one spacer, which extends between said at least one connecting crosspiece and said further bearing surface, said at least one spacer being connected to said further bearing surface so as to provide said outer extensions of said further bearing surface, and an interspace selected from the group consisting of a continuous interspace and an interrupted interspaces extending in the longitudinal direction of the profile being present between the parallel arms bearing surfaces for the outer layers and the planes defined by the parallel arms bearing surfaces and outer borders of the further bearing surface for the core element, said interspace being in communication with at least one channel which extends in the longitudinal direction of the profile.