Loading and unloading dipper for self-propelled machine, has fragmentation device that fragments content of grab while emptying grab and moves between positions where spike tooth rollers unblocks and covers opening of grab

摘要

The dipper (100) has a fragmentation device (150) intended to permit fragmentation of content of a grab (110) while emptying the grab. The device has spike tooth rollers (160a, 160b) rotatably mounted between flanges fixed in an articulated manner on lateral flanges of the grab. The device is movable between a position where each roller unblocks an opening of the grab and a position where each roller covers the opening.