| 摘要 |
The invention concerns a coupling of a ball or knee joint, that is to say, a coupling which partly involves a bowl or similarly shaped concave coupling element (3), and partly a ball element or similarly convex coupling element (8), whereby the connecting and power generation unit (16) is designed to be able to loosely squeeze the bowl and ball elements together in opposite angle positions where the units run along an opening (13) arranged in the ball element (8) which has sufficient diameter so as not to hinder aforementioned angle changes. According to the invention, the bowl element (3) displays a central section (15), which reaches up into and through the hole (13) in the ball element (8) in order to accommodate parts of the aforementioned connecting and power generation unit.<IMAGE> |
