Ground following snow plow attachment

An attachment assembly for attaching a snow plow blade to a vehicle, comprising:

• an interface bracket adapted for releasable connection with the vehicle;
• an intermediate structure mounted to the interface bracket;
• and
• a trigger assembly comprising:
• a static member comprising a pivoting attachment point, a top attachment point and a bottom attachment point, the pivoting attachment point for pivoting attachment to the snow plow blade, and the top and bottom attachment points for releasable attachment to the intermediate structure;
• a pin assembly;
• and
• a biasing means attached, at one end, to the pin assembly and attached, at an other end, to the static member such that the trigger assembly is biased toward a default position in which the pin assembly and the static member are at their closest, wherein when applying a torque on the snow plow blade above a trigger threshold, the snow plow blade rotates from the default position to a triggered position,
• wherein the intermediate structure comprising an articulated assembly,
• wherein the static member has a distal end distant from the pivoting attachement point, and
• wherein the articulated assembly comprises a rear longitudinal bracket, a front longitudinal bracket pivotably mounted to the rear longitudinal bracket, and a top link arm, and further wherein the front longitudinal bracket is releasably attached to the pivoting attachment point, the rear longitudinal bracket is mounted to the interface bracket and the top link arm is releaseably attached to the distal end of the static member and pivotably mounted to the interface bracket.