US Patent 9051700 V-blade snowplow having dual trip mechanism

A V-blade snowplow having both full moldboard trip and trip edge capabilities. The V-blade has first and second moldboards that not only can pivot against a restoring force of one or more trip springs extending intermediate a pivot frame and a push frame of the snowplow, but the moldboard of each wing of the V-plow has associated therewith a respective cutting edge hingedly secured along a base thereof, the cutting edge biased toward an untripped position in substantial alignment with the base of the moldboard by one or more trip edge springs. The maximum angle of deflection of the cutting edges is preferably about 40°, which is lower than the maximum angle of deflection of cutting edges of V-plows only exhibiting trip edge capability.