Plow with pivoting blade wing
AssigneeDouglas Dynamics, L.L.C.
InventorDavid N. Bloxdorf
Life of this patent
Estimating the term…
Abstract
A plow assembly for attachment to a vehicle having a longitudinal axis comprises a plow blade having first and second ends, a first plow wing pivotally mounted to the first end of the plow blade, and a plow support adapted to be operably mounted to the vehicle. The first plow wing is biased by a first compression. A first connecting member is connected to the first plow wing, passes through the first compression spring generally coaxially therewith, and is connected to the plow support. The first connecting member is configured to pivot the first plow wing relative to the plow blade during pivoting of the plow blade from a center position to a first position such that when the plow blade is in the first position the first plow wing is generally parallel to the plow blade.
Claims15
A plow assembly for attachment to a vehicle, the vehicle having a longitudinal axis, said plow assembly comprising:
- a plow blade having first and second ends,
- a first plow wing pivotally mounted to said first end of said plow blade,
- a plow support adapted to be operably mounted to the vehicle, said plow blade being operably pivotally mounted to said plow support to permit said plow blade to pivot relative to the vehicle about a generally vertical axis between a center position, where said plow blade is positioned generally perpendicular to the longitudinal axis of the vehicle, and a first position, where said first end of said plow blade is pivoted toward the vehicle, and between said center position and a second position, where said second end of said plow blade is pivoted toward the vehicle,
- said first plow wing being biased by a first compression spring operable between said first plow wing and said plow blade so as to be angled forwardly relative to said plow blade when said plow blade is in said center position, and
- a first connecting member connected to said first plow wing, passing through said first compression spring generally coaxially therewith, and connected to said plow support, said first connecting member configured to pivot said first plow wing relative to said plow blade during pivoting of said plow blade from said center position to said first position such that when said plow blade is in said first position said first plow wing is generally parallel to said plow blade.
A plow assembly for attachment to a vehicle, the vehicle having a longitudinal axis, said plow assembly comprising:
- a plow blade having first and second ends and being pivoted to a pivot beam to permit said plow blade to pivot relative to the vehicle about a generally horizontal trip pivot axis generally transverse to the vehicle longitudinal axis,
- a first plow wing pivotally mounted to said first end of said plow blade,
- an A-frame adapted to be operably mounted to the vehicle, said pivot beam being pivotally mounted to said A-frame to permit said pivot beam and plow blade to pivot relative to the vehicle about a generally vertical axis between a center position, where said plow blade is positioned generally perpendicular to the longitudinal axis of the vehicle, and a first position, where said first end of said plow blade is pivoted toward the vehicle, and between said center position and a second position, where said second end of said plow blade is pivoted toward the vehicle,
- said first plow wing being biased by a first compression spring operable between said first plow wing and said plow blade so as to be angled forwardly relative to said plow blade when said plow blade is in said center position, and
- a first flexible cable connected to said first plow wing and to said A-frame, said first flexible cable configured to pivot said first plow wing relative to said plow blade during pivoting of said plow blade from said center position to said first position such that when said plow blade is in said first position said first plow wing is generally parallel to said plow blade,
- said first compression spring, said first flexible cable, and the generally horizontal trip pivot axis of said plow blade being generally coaxial.
Dependencies are inferred from the claim text.