| 摘要 |
The equipment comprises a ring- or polygon-shaped pontoon (11) for the support of at least one net bag (12). On the top side of the pontoon is an upwardly narrowing frame (18) on which is fitted a cover unit (36) for the bag aperture. The frame consists of several beams (16), the ends of which are articulately connected to the pontoon. The opposite ends of the beams are connected together in a common fixture. At least one of the beams is intended for load purposes, and at its upper end has a load block and a wire arrangement intended partly for lifting and lowering the bottom of the net bag, and partly for handling. The load beam can be uncoupled from the fixture and pivoted partly around a horizontal axis at its lower end, and partly around a vertical axis on the pontoon fixture. It can also be pivoted outwards from the fish breeding equipment. Holders for supporting and fixing the net bag and cover comprise upwardly stretched wires following the inner contour of the pontoon. |
