Patent ID: 7416363
Filing Date: 2008-08-26
Classification: F16B,Y10T

Abstract:
1. A joint joining flat rigid parts, the joint comprising projections, which are embodied on mating sides of the parts in the form of bulbous breadths at an edge thereof, and necks at the base thereof and complementary joggles, which are embodied in the form of bulbous slots located between and corresponding to the bulbous breadths of the projections and gradually change into grooves corresponding to the projection necks, characterized in that the surfaces of edges of the projections and surfaces of the bottoms of the slots of each part are embodied in the form of adjacent conical surfaces, wherein the peaks of the conical surfaces of the projection edges and of the slots of each part arranged on opposite sides with respect to a plane of each respective part, wherein a lower and upper part are joined by overlapping said upper part and said lower part in such a way that the respective planes of said upper and lower part are positioned at an angle that is close to a right angle, aligning bulbous breadths of the lower the with the bulbous slots of the upper part, placing the projection necks of the upper part placing the necks of the upper piece into the mating grooves of the lower part, respectively, and rotating said upper part relative to said lower part until conical surfaces of the breadths of the lower part meet the conical surfaces of the slots, of the upper part wherein both parts are located in the same plane.