Patent ID: 8516766

Claim:
A panel for decorating spaces, comprising a first flat structural element and a second flat structural element each having a larger flat face surface and a larger flat back surface extending in a vertical direction, a narrower upper surface and a narrower lower surface extending in a horizontal direction between said flat face and back surfaces, and a narrower left side surface and a narrower right side surface extending vertically between said flat face and back surfaces perpendicular to them, wherein said first and second flat structural elements are connected with one another so that their vertically extending side surfaces face each other, wherein said first flat structural element is provided on each of its vertically extending side surfaces with a plurality of pins which have flat surfaces, are spaced from one another in a vertical direction and extend toward said second flat structural element, wherein each of said pins on a face side is provided with a vertical projection which projects from said pin transversely to said pin and narrows to form a sharp vertical edge, wherein said second flat structural element at each of its vertically extending side surfaces has a plurality of slots each extending from said vertically extending side surface away from said first structural element and being open at said larger flat face surface of said second flat structural element and also has a plurality of depressions each located vertically above a corresponding one of said slots in communication therewith and being closed from said larger face surface of said second flat structural element, wherein each of said depressions is provided with a vertical recess extending transversely to a corresponding one of said depressions and narrowing to form a sharp vertical edge substantially corresponding to said vertical projection, so that in order assemble said first and second flat structural elements with one another, said first and second flat structural elements are moved toward one another, said pins of said first flat structural element are introduced into said slots of said second flat structural element, said first and second flat structural elements are shifted transversely and vertically relative to one another, said pins of said first flat structural element are introduced into said depressions of said second flat structural element, said sharp-edged vertical projections of said pins are introduced into said sharp-edged vertical recesses of said depressions, whereupon said first and second flat structural elements can no longer be separated from one another by moving them horizontally away from each other.