| 摘要 |
The invention concerns a ball joint fixture of the kind comprising a ball head (1) and a friction element (9) arranged, when actuated by a pressurized medium, to exert pressure on the ball head. The ball head mounting means consists of two annular seat members (2, 3) which from opposite directions are pressed against one another and against the ball head. The seat member faces positioned opposite the ball constitute annular seating faces in abutment against said ball head. An attachment member projects through the central aperture of one of said annular seat members in order to support the object to be secured by means of the fixture while the friction element extends through the central aperture of the opposite annular seat member. |
