Fully automatic coupler for excavator arm

A coupler comprising first and second jaws or accessory engagement areas for receiving first and second accessory pins or accessory attachment members of an accessory, wherein:

• a first latching mechanism is associated with the first jaw or accessory engagement area, the first latching member having a resiliently flexible arm operatively connected to and extending away from a latching member thereof;
• a second latching mechanism is associated with the second jaw or accessory engagement area;
• the first and second latching mechanisms are adapted to latch the first and second accessory pins or accessory attachment members of an accessory in or on the first jaw or accessory engagement area and the second jaw or accessory engagement area, respectively;
• the second latching mechanism is powered for movement between a latching position and a non-latching position;
• and
• the first latching mechanism is operatively connected to, or connectable with, the second latching mechanism to allow operation of the second latching mechanism selectively to operate the first latching mechanism between its own latching and non-latching positions by means of a groove or flange or finger provided on the second latching mechanism.

A coupler for attaching to an excavator arm of an excavator the coupler comprising:

• a first jaw having an opening pointing generally forwards with respect to the coupler for receiving a first accessory attachment member of an accessory;
• and
• a second accessory engagement area facing generally downwards with respect to the coupler for receiving a second accessory attachment member of the accessory;
• wherein:
• a first latching mechanism is associated with the first jaw, the first latching member having a resiliently flexible arm operatively connected to and extending away from a latching member thereof;
• a second latching mechanism is associated with the second accessory engagement area;
• the first and second latching mechanisms are adapted to latch first and second accessory attachment members of an accessory in or on the first jaw and the second accessory engagement area, respectively;
• the second latching mechanism is powered for movement between a latching position and a non-latching position and the first latching mechanism is operatively connected to, or connectable with, the second latching mechanism to allow operation of the second latching mechanism to selectively operate the first latching mechanism between its own latching and non-latching positions;
• and
• the second latching mechanism is provided with a groove or flange or finger for defining a pair of surfaces or a space on or in which a free end of the arm of the first latching mechanism can rest or reside either or both during a coupling procedure or a decoupling procedure of the coupler so as to allow the movement of the second latching mechanism to operate the first latching mechanism between its latching position and its non-latching position.