| 摘要 |
<p>A method of post installation includes fitting a non-circular cross-section base element (10) in a receiver, the base element (10) having an internally threaded formation (11) on its upper surface. The lower end of an externally threaded member (13) is engaged with the internal thread of the formation (11). An internally threaded formation (14) on the underside of a non-circular cross-section upper element (12) is engaged with the upper end of the externally threaded member (13). The internally threaded formations (11 and 14) may be nuts. In use the receiver may be permanently installed in the ground and the base element (10), which may be hollow, can be placed within it. The threaded member (13), which can be a threaded shaft element, is then screwed into the internally threaded formation (11) on the top surface of the base element (10) and then the upper element (12), which has a post receiving portion, can be screwed on to the other end of the threaded member via its internally threaded formation (14). The invention allows posts to be easily removed from their ground anchors.</p> |
