Harvesting/adopting sand chute structure null of earth and sand picking

摘要

PROBLEM TO BE SOLVED: To easily and safely operate an opening shutter operating lever and a partition operating lever 16 on the bottom face and the side face of a chute S1. ;SOLUTION: For a sand chute structure of a sand dredger S, Openings 12, 13 with shutters 10, 11 are formed on the side face and the bottom face properly located in the longitudinal direction of a chute S1 for guiding gather sand (b) from a sand selecting device M to a sand collecting position, e.g. a hold B, a partition 14 is oscillatably provided in the chute S1 downstream from the opening 12, 13 and shutter and partition operating levers 15, 16, 19 are guided from the side face of the chute S1 upward of the upper face. The operating levers 15, 16, 19 are bent from the upper face of the chute S1 inside of a handrail 17 on the upper face of the chute and guided upward. If the operating levers exist inside the handrail 17, the handrail forms no blockage during operation and no need for passing a hand from one side to the other is eliminated.;COPYRIGHT: (C)2000,JPO