| 摘要 |
<p>A tie rod 3 is screw-threadedly engaged within a threaded member 7 carrying a cone 8 which, together with a further cone 10, acts to expand a slitted expandable sleeve 9 when the rod 3 is rotated by a tool applied to a square cross-section tip 21 so that the threaded member 7 is driven towards a fixed head 6 on the rod 3. The threaded member 7 carries a securing member 16 having projecting ribs which hold the threaded member 7 against rotation within a bore hole 20B as the rod 3 is rotated. The other end of the rod 3 is secured within a bore 20A of a double skin cavity wall by rotating a nut 11 to cause a slitted expandable sleeve 13 to expand into the wall of the bore 20A due to action of conical members 12 and 14.</p> |
