V-blade snowplow having dual trip mechanism

摘要

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.

主权项

1. A V-blade snowplow comprising:
a first wing including a first moldboard and a first cutting edge hingedly mounted along a lower edge of the first moldboard, the hinged mounting including one or more trip edge springs biasing the first cutting edge into an untripped position in substantial alignment with a base of the first moldboard, but allowing the first cutting edge to trip upon impact with an obstacle; a second wing including a second moldboard and a second cutting edge hingedly mounted along a lower edge of the second moldboard, the hinged mounting including one or more additional trip edge springs biasing the second cutting edge into an untripped position in substantial alignment with a base of the second moldboard, but allowing the second cutting edge to trip upon impact with an obstacle; each of the first and second wings being hingedly secured to a center hinge, such that the first and second wings are adjustable with respect to one another; and one or more trip springs extending between the center hinge and a push frame, the trip springs and push frame permitting the first and second moldboards to trip upon impacts.