Patent ID: 6212842
Filing Date: 2001-04-10
Classification: E04D

Abstract:
A preformed roof cover element comprising a panel of quadrilateral shape having, on each of two non-parallel, opposite sides thereof a rim extending substantially over the whole length of these sides, these two rims being raised on the same face of the panel and comprising means to connect the rim of a first panel to the adjacent rim of an attached second panel oriented in the same direction and located in the same plane as the said first panel,wherein said panel has substantially the shape of an isosceles trapezium having two bases, the length of one of the bases of the trapezium being substantially equal to that of the other base increased by twice the width of a wall of said rims, so as to enable the ends of the rims on the side of the shorter base to engage with the ends of the rims located on the side of the longer base of the panel of another element extending in the direction of the length of said element and said rims; there ofwherein the height of said rims, close to the shorter base, is substantially equal to that of said rims at the location of a retention member on said panel, minus at least three times the thickness of the panel;a free edge of one of said rims is folded towards the other rim and the latter is folded toward the outside of the element, andwherein said rim whose free edge is folded towards the other rim has a transverse section in the form of a clip, said other rim being provided with a bead delimiting a longitudinal cylindrical hollow and forming a slit extending along the outer lateral side of said other rim, the transverse section of the part of said bead close to the longer base and the transverse section of the part of the bead and of the slit close to the shorter base being such that the part of the bead close to the longer base of said element is able to engage in the part of the bead close to the shorter base of said another element while permitting the pivoting of said another element relative to said element about an axis of rotation extending along said engaged beads to permit snap-fitting said rim of said another element in the form of a clip to said rim in the form of a clip of said element.