| 摘要 |
<p>A roof anchor assembly for fitment to a roof support structure having an underside surface is disclosed. The roof may be fully or partially covered with roof covering material. The roof anchor assembly includes a roof anchor and an anchor block; the roof anchor having a shaft for insertion through a hole in the covering material and roof support structure. The hole is capable of receiving the shaft; and the said anchor block capable in one orientation of being inserted through the hole in the roof covering material and roof support structure independently of the roof anchor and prior to insertion of the shaft of the roof anchor therethrough. Furthermore, the anchor block has means to suspend it whilst it is thus inserted through the hole, such means also functioning to draw the anchor block up into a second orientation to the underside surface of the roof support structure once it has been fully inserted, so that it cannot be withdrawn. The anchor block has a second hole therein capable of fixedly engaging the shaft of the roof anchor once the anchor block is thus drawn up to the underside surface of the roof support structure. The second hole in the anchor block is aligned with the hole in the covering material and roof support structure by virtue of being thus drawn up in the second orientation, so that upon insertion of the shaft of the roof anchor in the hole in the covering material and roof support structure, it may be fixedly engaged with the anchor block, in order that the roof anchor is then mounted on the support structure,</p> |
