| 摘要 |
A plow assembly is disclosed for vehicles such as pickup trucks and tractors for moving snow or other materials. The plow assembly has at least one extendable, f orwardly pivotable plow wing which is extendable on one end of a main plow by sliding mov ement along the front of the plow between a retracted and an extended position in which the plow wing is generally aligned with the plow front surface. The plow wing is also pivotally mounted on a hinge for movement between the extended position and a forwardly angled position in which the plow wing front surface extends at an angle to the plow front surface. A pair of fluid pow er cylinders are connected to the plow wing to move the wing between the retracted, extended and forwardly angled positions. In the preferred embodiment, an extendable plow wing is included on e ach end of the main plow with a pair of fluid cylinders connected to each of the respective plo w wings. The fluid cylinders in each respective pair are operable independently of one another to m ove the plow wings independently between their respective retracted, extended and forwardly angled positions. When both plow wings are pivoted to their forwardly angled positions, the plow assemb ly has a general U-shape which facilitates pushing snow or other material without the snow slippi ng off the plow blade ends. The main plow may include a section formed from polymeric sheet material f or weight reduction.
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