| 摘要 |
<p>The invention comprises an anchor 1 including a shank 2 which in transverse cross section along at least part of the length of the shank has a forward facing edge 15, a rearward facing edge 16 and a pair of side faces 17 and 18 between the forward facing edge and the rearward facing edge. The parts 19 of the shank adjacent the forward facing edge are substantially V-shaped in cross section and at least part of the side faces between the substantially V-shaped part and the rearward facing edges are concave on each side face. The anchor further includes a fluke having a forward end 6 and a rearward edge 7 in normal use, the rearward edge has a continuous flange (50, Fig 7) extending therefrom over at least a substantial part of the rearward edge. Also the anchor has a roll-bar 40 positioned substantially above the upper surface of the fluke. The roll-bar forms a semi-circular or elliptical wheel spanning the maximum width of the fluke and along at least a substantial part of its length the roll-bar is in cross section substantially in the form of a foil (Fig 3).</p> |
