Coupling structure with anchoring in stone parts

Claim 1

Coupling structure, wherein part of the coupling is an anchoring member being embedded in an artifical stone part such as a siding or a plate made of concrete or other stone material that permits embedding of anchoring members, comprising: an anchoring member constructed as profiled section extending in a first direction and having similarly contoured cross-sections in planes transverse to the first direction, the member having a flat stem portion with flatness also extending in the first direction and longer than the stem portion is thick, the stem portion being partially embedded in the stone part material and projecting above a flat surface portion of the stone part, the member having a head extending lengthwise in the first direction as well as laterally from the flat stem in a profiled contour in the said planes, the head having convex surface portion where laterally extending from the stem, the head being on a portion of the stem that projects above the said stone part surface; a coupling member constructed as a profile bar with C-shaped cross-section and extending in a particular direction and having a base, a pair of side flanges having also lengthwise extension in the particular direction but extending from the base, transverse to the particular direction, and edges extending from the flanges towards each other, but leaving clearance space wider than the said stem portion is thick thereby defining a straight slot with predominant extension in the particular direction, for passage of the said stem portion of the anchoring member as the head of the anchoring member is being received by the C-space as defined by the base and the side flange, whereby the first direction runs parallel to the particular direction, each of the edges having a flat lower, outer surface extending from the slot to the respective flange from which the edge extends; said coupling member as receiving the head being capable of limited angular displacement in said transverse planes and with a tilt axis parallel to said first and particular directions upon tilting one or the other of said edges abutting said stem laterally from one or the opposite side, limiting said angular displacement accordingly, the head of the anchoring member extending above the said stone part surface only, so that upon application of skewed pulling force upon the coupling member the lower outer surface portion of the one edge bearing against said flat surface portion of the stone material, as the one edge abuts the stem, while the lower outer surface of the edge which does not abut the stem, is raised above said surface portion; and the edges having concavely shaped inner shoulders corresponding to the convex surface portion of the head and extending lengthwise in the particular direction, but for an angle larger than 90° from the respective flanges in a plane transverse to the particular direction, the said two concave shoulders being always respectively in engagement with the said convex surface portions of the head when the anchoring member is suspended from the coupling member, the head extending from the stone part so that the said lower edge surfaces clear the said surface portions of the stone part.