HYDRAULIC ACTUATED GRAB BUCKET

摘要

This multi-purpose grab bucket of the type comprising a pair of hydraulically actuated symmetrical pivoting shells or scoops has a main central vertical hydraulic cylinder and piston actuator and lateral oblique hydraulic cylinder and piston actuators, and valves for selectively supplying hydraulic fluid under pressure to the central actuator or the lateral actuators for operating the assembly as a "digging" bucket or as a "rehandling" bucket, or in a third mode intermediate the "digging" and "rehandling" mode.