| 摘要 |
<p>An anchor plate for use in a ground anchoring system includes a flap (17) projecting rearwardly from a trailing edge (18) of the plate (10), the flap (17) being retained in a cocked position inclined at a first angle ( theta 1) to the plate when the plate is engaged by the driving rod (22) of a driving tool, and being released from its cocked position so that it lies at a second greater angle (92) to the plate (10) when the rod (22) is withdrawn, the rear edge (24) of the flap (17) thereby engaging the side of the hole (25) to resist reverse upward movement of the plate (10) and providing a fulcrum about which the plate pivots to a skew position. <IMAGE></p> |
