| 摘要 |
A front-retracting plow is disclosed. The plow includes a vehicle mount for mounting the plow to a host vehicle, and a main blade mounted to the vehicle mount. The plow further includes a pair of wing blades pivotally mounted to the main blade, and four bar parallel arm linkages and actuators connected between opposing ends of the main blade and each of the wing blades for moving the at least one wing blade between a retracted position i n front of the main blade and an extended position in substantial longitudinal alignment with the main blade, whereby a plurality of plowing widths is provided. It should be noted that the blade is advantageously used for the plowing of snow, however the plowing of other materials is envisioned such a s sand or gravel.
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