Patent ID: 8496043
Filing Date: 2013-07-30
Classification: E06B

Abstract:
1. A blind slat having a substantially constant cross-sectional profile extending between a leading end and a trailing end, said profile defining an upper face of said slat and a lower face of said slat, said upper face having: a convex portion extending from adjacent said leading end towards said trailing end, said convex portion having an apex at which a tangent to said upper face is parallel to a reference axis of said profile extending laterally between said leading end and said trailing end; a concave portion located between said convex portion and said trailing end, said concave portion having a base at which a tangent to said upper face is parallel to said reference axis; an inflection forming a straight portion joining said convex portion and said concave portion, said upper face being inclined with respect to said reference axis by at least 11 degrees at said inflection; and a secondary convex portion defined between said concave portion and said trailing end; wherein said profile further defines: a leading rolled portion located extending between said convex portion and said leading end, said lower face, at said leading rolled portion, defining a substantially cylindrical cavity for receipt of a leading tape clip; and a trailing rolled portion located extending between said secondary convex portion and said trailing end, said lower face, at said trailing rolled portion, defining a further substantially cylindrical cavity for receipt of a trailing tape clip; and wherein said profile has a depth measured between said leading end and said trailing end of between 105 and 150 mm.