COUPLER FOR BUCKET EXCAVATORS

摘要

A coupler (11) for connecting a dipper arm (3) of an excavator to a bucket (1) without the need for the operator of the excavator to leave the cab of the excavator, the coupler (11) having means for connecting it to the end of the dipper arm (3), and a latching hook (17) for connecting it to a bucket (1), wherein the latching hook (17) has a special internal profile (56, 57, 61) so that when it is supporting the weight of a bucket (1), it will tend to move to a latching position, not to an unlatching position.