Pole coupling for hollow profiles

摘要

The pyramid-shaped coupling elements (K) are provided at the ends of the rod. The ends are put into a coupling knot (KK) and the connected coupling elements form a prism after they are put together. The coupling elements carry guiding grooves parallel to the axis of the prism. The guiding grooves carry the legs of a table-shaped adaptor (T1) which also closes the top side of the coupling knot. The adaptor has a through hole (5) to carry a tightening bolt (6). The tightening bolt is held in a second adaptor (T2) and tightens the first adaptor with the coupling elements of the poles when screwed in.