Hollow wooden beam for indoor decoration - has several boards or panels jointed by transverse contact surfaces with complementary relief profiles

摘要

The joints form an open or closed transverse section beam profile. The contact surfaces of two adjacent planks or panels have complementary relief profiles cut so that the joint shape has a profile having at least three parts which extend perpendicular to a beam principal face and two parts which extend transversely to the other parts. - The contact surfaces form a joint that has a rib and a recess. They have their medial planes perpendicular to a beam principal face and the joint contains at least one bearing surface.(0/3)