Patent ID: 7316203

Claim:
A collapsible cage, including a bottom, grid shaped walls that surmount said bottom and are associated therewith and to connecting means for connecting to each other said walls, said connecting means comprising: at least one corner joint constituted by a main element with a concave corner body, said main element comprising a base plate with two sides that converge at 90° in a corner angle, two converging lateral shoulders located on said sides, and converging longitudinal recesses formed along said shoulders so as to form positioning seats for three converging ones of said grid-shaped walls and in which a border edge of a top one of said grid shaped walls rests; at least one locking element comprising a tab which protrudes substantially at right angles from an upper edge of a corresponding one of said lateral shoulders and is adapted to act as a longitudinal flexible hinge of the at least one locking element, and a complementary shoulder that protrudes substantially at right angles from said tab to lock in position in cooperation with said corresponding lateral shoulder said grid shaped walls; and reversible interlocking anchoring means connected with said at least one locking element for anchoring said three grid-shaped walls in said positioning seats, said at least one locking element being formed monolithically with said main element and said at least one locking element being deformable in order to be arrangeable in a locking configuration.