Building element and coupling-pin for interconnecting such elements
First Claim
1. A rectangular building element having a box-like shape and which is open at one side, a top of the building element being provided at an outside with projections and at an inner side with studs, which are arranged in such a way, that when the elements are stacked one upon the other, the studs of the one element are clamped between the projections of the other element, whereby the projections are provided with a central aperture, wherein the central aperture comprises a top round opening and walls which are locally widened allowing connection of both elements by means of a coupling-pin having a head at the one end and hook-like lugs at the other end and which in operative position rests with its head on a projection of the one element and snaps with its lugs in the widening of the central aperture of the projection of the other element and further characterized in that the locally widened walls of the central aperture have an undulated cross section with inwardly directed crests, the top of which constitute a local continuation of the top round opening of the central aperture.
5 Assignments
0 Petitions
Accused Products
Abstract
A generally rectangular building element has projections on the top surface and matching recesses on the bottom surface. Apertures are provided in the projections so that coupling pins can be used to lock together building elements that are assembled together.
60 Citations
8 Claims
- 1. A rectangular building element having a box-like shape and which is open at one side, a top of the building element being provided at an outside with projections and at an inner side with studs, which are arranged in such a way, that when the elements are stacked one upon the other, the studs of the one element are clamped between the projections of the other element, whereby the projections are provided with a central aperture, wherein the central aperture comprises a top round opening and walls which are locally widened allowing connection of both elements by means of a coupling-pin having a head at the one end and hook-like lugs at the other end and which in operative position rests with its head on a projection of the one element and snaps with its lugs in the widening of the central aperture of the projection of the other element and further characterized in that the locally widened walls of the central aperture have an undulated cross section with inwardly directed crests, the top of which constitute a local continuation of the top round opening of the central aperture.
- 3. Rectangular building element, which at one side is provided with projections and at the other side with recesses, such that, by arranging two elements one upon each other, the projections of the one element fit into recesses of the other element and whereby the projections are provided with a central aperture, wherein the central aperture comprises a top round opening and walls which are locally widened allowing connection of both elements by means of a coupling-pin having a head at the one end and hook-like lugs at the other end and which in operative position rests with its head on a projection of the one element and snaps with its lugs in the widening of the central aperture of the projection of the other element and further characterized in that the locally widened walls of the central aperture have an undulated cross-section with inwardly directed crests, the top of which constitute a local continuation of the top round opening of the central aperture.
Specification