| 摘要 |
The fixed part (4) of the holder (2) is divisible along a plane along which its two sections are movable relatively to one another to permit insertion of articulated joint sections into a hollow space (16) in the movable holder part (6) at the remote ends of the fixture parts. The joint sections in the connection position have the shape of at least part of a sphere. The hollow space has a shape which is congruent to the position of the connected joint sections. The hollow space opens into a passage which accommodates a rod (18) between the joint sections and clamp parts in fixture parts. The passage narrows in the direction from the hollow space, at least in the direction from arms (21,22) which support a block sheave (3). |
