| 摘要 |
A post including two post tubes (6), the mutually opposing end faces of which being united by a spring joint comprising an elongate spring means (2) extending inside the post tubes and fastened relative thereto under axial bias. The spring means is formed by a massive elongate body (2) of polymeric material, which fills out, at least substantially, the cross-section of the post tubes, and has at least a portion of its length surrounded by at least one sleeve (4), to which said body (2) is directly fastened, and on which a corresponding one of the post tubes (6) is slipped. The end of the sleeve facing towards the joint is fixed against displacement in a direction towards the other post tube (6). |
