Excavation bucket for use during supporting e.g. cast wall, in ground, has actuation unit swiveling cups and including arms connected to cups, where arms are movable with respect to frame, and cross each other so as to form X-shape

摘要

The bucket (100) has a frame (120) extending according to a longitudinal direction (L) of the frame. Two cups (180, 200) are mounted in a swiveling manner at a lower end (120a) of the frame. The cups are placed on both sides of a longitudinal plane (P) parallel to the longitudinal direction of the frame. An actuation unit swiveling the cups includes an arm (260) connected to one of cups, and another arm (280) connected at other cup. The arms are movable with respect to the frame, and cross each other so as to form X-shape.