| 摘要 |
Profiled rods (10,11) have undercut longitudinal grooves (14) on one rod (11). The other rod (10) is hollow to contain the connector (20). The latter comprises a coupling hook (22) which is locked behind one groove flange by rotation of an eccentric bolt (25) acting on a plate (24). The eccentric bolt has a striker lug (79) which, on rotation, acts on a shoulder (52) of the plate to press it against the sides of the second rod to preclude further rotational movement. |
