| 摘要 |
<p>A marine anchor comprises a fluke with a shank attached to the fluke to enable the anchor to be joined to an anchor cable. Additionally there is provided a soil barrier plate located at the rear of the fluke but above the level of the fluke, with a soil passage between the barrier plate and the fluke. The barrier plate and the associated soil passage are arranged so as to function in a manner enabling the anchor to operate effectively and without adjustment in cohesive soils such as mud even when the fluke is set (say at an attack angle of 30.degree.) for optimum operation in non-cohesive soils such as sand, without substantially detracting from the performance of the anchor in non-cohesive (sand) soils. In one embodiment the barrier member is set at a negative angle (up to 90.degree.) relative to the fluke, while in a second embodiment a positive barrier member angle (i.e. greater than 90.degree.) is employed but in this case the plate is located so that the soil passage defines a choke gap. A further embodiment provides a novel operating mechanism enabling the invention to be applied in a pivotting shank (Danforth) anchor.</p> |
