Patent ID: 6213189
Filing Date: 2001-04-10
Classification: E06B

Abstract:
Doorleaf (10) with a plurality of plates (12, 14) hingedly connected to each other via hinge connections, said plates (12, 14) being pivotable with respect to each other when they are moved from open position to closed position or vice versa, whereinthe plates (12, 14) each have a front wall (18) and a rear wall (16) as well as at least one plate edge (28, 20) resting against a respective plate edge (20, 28) of an adjacent plate (14, 12),a first plate edge (28) has a profile with a profile section (30) having a substantially concave design, a second plate edge (20) lying opposite thereto has a convex-shaped profile section (24) being complementary to the concave-shaped profile section (30),the convex profile section (24) comprises a central curved apex pointed in a longitudinal direction of adjacent plates (12, 14) in the closed position and the concave profile section (30) comprises a complementary central curved base structured and arranged to receive said apex in the closed position in a complementary manner,said convex profile section (24) comprises a straight-line section (25) extending, without interruption, from said curved apex to said front wall (16) and said concave profile section (30) comprises an uninterrupted complementary straight line section (37) extending without interruption from said curved base to said front wall (16) and structured and arranged to receive said convex straight line section (25) in the closed position,a nose (38) is formed in the concave profile section (30) between the front wall (16) and straight line section (37), with an outer side of said nose (38) between the front wall (16) and an apex of said nose (38) being straight or flattened in an inclined manner, such that in the closed position, said nose (38) apex points downwardly to said convex straight line section (25) and entirely lies within a region of said convex straight line section (25) directed obliquely to the front wall (16) thereof, and with said region of said convex straight line section (25) being spaced away from a plane formed by the front wall (16) thereof, andadjacent plates (12, 14) have different thicknesses (d.sub.1, d.sub.1,) from each other over the entire height of each said plate (12, 14).