| 摘要 |
The invention comprises an anchor including a shank, the shank in transverse cross section along at least part of the length of the shank has a forward facing edge, a rearward facing edge and a pair of side faces between the forward facing edge and the rearward facing edge. The parts 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 and a rearward edge in normal use, the rearward edge has a continuous flange extending therefrom over at least a substantial part of the rearward edge. Also the anchor has a roll-bar 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 wherein along at least a substantial part of its length the roll-bar is in cross section substantially in the form of a foil. |
