Angular coupling in inverted lance for mountable shelves, comprising horizontal rods when connected to the vertical uprights of the shelf by means of stirrups constituted by a segment of profiling with section in the shape of L, in which hooks have been made in angular position and incurvados of so that they protrude towards the interior of the profiling whose hooks are inserted in angular windows made in the upright, in correspondence with the edges, said angular coupling being characterized in that such angular windows are configured with an inferior angular profile, of vertex directed downwards, while the teeth are configured at the point of the spear with the vertex also directed downwards and with a joint also angularly configured and with the vertex downwards, so that a connection is made more secure the greater the load exerted on the shelves of the frame. (Machine-translation by Google Translate, not legally binding)
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