Method for connecting two parts along abutting edges and connection obtained thereby

Abstract From the Canadian patent

For the connection of two edges of areal parts which extend at least along one common section essentially parallel to one another, at least one retaining element is arranged at the one edge which form-lockingly engages from behind as viewed in, the edge direction, in a recess in the other edge. At least one projection arranged laterally offset at the one edge in relation to the retaining element in the direction of the engagement from behind, abuts form-lockingly at the part with the recess essentially in the edge direction. For the connection of the terminal edges of open ends of a ring-shaped clamping band analogously a retaining tongue is provided preferably in the, center of the one …