| 摘要 |
A scaffold fitting has a body 3 with a large base and an aperture 8 into which is fitted load transmitting members 9, 22 which also fit into holes 14, 23 in a structure together with expansion anchor means 16, 18 actuated by rotation of a screw thread 13, and 19. In one embodiment, in Fig. 1, the screw thread is a headed bolt passing through the load transmitting sleeve 9 from inside the fitting body 3 and expanding the split shell 16 when it is turned by drawing the cone 17 upwards and at the same time pulling the body 3 down onto the surface 2 of the structure. In another embodiment, in Fig. 2, the screw thread is provided on an extension 19 of the load transmitting boss 22. The head of the boss 22 is shaped (eg hexagonal) to fit into the aperture of the fitting 3, which is correspondingly shaped. A bolt 29 threads into the top of the boss 22 to attach it to the fitting. In order to expand the expansion fitting 18, the whole assembly, including the fitting, is rotated. <IMAGE> |
