'fully automatic coupler for excavator arm'

摘要

A coupler (10) comprising first and second jaws (18, 26) for receiving first and second accessory pins (24, 25) of an accessory (16) wherein a first latching mechanism (28) is associated with the first jaw (18), the first latching member having an arm (42) operatively connected to and extending away from a latching member (38) thereof, and a second latching mechanism (30) is associated with the jaw (26), and the first and second latching mechanisms (28, 30) being adapted to latch the first and second accessory pins (24, 25) of an accessory (16) in or on the first jaw (18) and the second jaw (26), respectively; and wherein the second latching mechanism (30) is powered for movement between a latching position and a non-latching position and the first latching mechanism (28) is operatively connected to, or connectable with, the second latching mechanism (30) to allow operation of the second latching mechanism (30) selectively to operate the first latching mechanism (28) between its own latching and non-latching positions by means of a groove or flange or finger (66) provided on the second latching mechanism (30).