Two-in-one retro cup for excavation or displacement of materials at building site, has front and rear parts articulated by hinges, where opening and closing of cup are carried out without source using existing functions of earthmover

摘要

The cup has front and rear parts (3, 2) articulated by hinges (4) that are in a form of grips, where opening and closing of the cup are carried out without additional energy source using existing functions of an earthmover. The hinges are formed of axles on which springs are wound, where constant tensioning power of the springs permits to keep a yoke of the cup in a closed position to allow its optimal utilization in a standard mode. The constant tensioning power of the springs is regulated using a removable stop.