Patent ID: 7056074

Claim:
A joint for joining pieces of wood, comprising: a connecting element which is adapted to be positioned between two pieces of wood to be connected and which exhibits a body with two opposite main surfaces and with engaging means protruding from each main surface, and a shank-shaped connecting means which is adapted to be passed through holes in the pieces of wood and the connecting element and apply a compressing force on the pieces of wood in such a manner that the engaging means of the intermediate connecting element penetrate into the opposite wood surfaces, wherein the connecting element comprises a through hole perpendicular to the main surfaces for passing through the shank-shaped connecting means, the hole exhibiting engaging formations around its circumference, and the shank-shaped connecting means exhibits matching engaging formations on its shank part in such a manner that longitudinal displacement is allowed while rotary motion of the shank-shaped connecting means relative to the connecting element is prevented.