Front retracting plow
First Claim
1. A front-retracting plow comprising:
- a vehicle mount for mounting the plow to a host vehicle;
a main blade mounted to the vehicle mount;
at least one wing blade pivotally mounted to the main blade for travel in an arcuate path relative to the main blade; and
a pivoting connector arm assembly for supporting and swinging the at least one wing blade in said arcuate travel path throughout the full distance between a retracted position in front of the main blade such that at least a substantial portion of the at least one wing blade is disposed in overlapping relation with the main blade, and an extended position in substantial longitudinal alignment with the main blade, whereby a plurality of plowing widths is provided.
1 Assignment
0 Petitions
Accused Products
Abstract
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 for travel in an arcuate path relative 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 supporting and swinging the at least one wing blade in said arcuate travel path throughout the full distance between a retracted position in front of the main blade such that at least a substantial portion of the at least one wing blade is disposed in overlapping relation with 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 as sand or gravel.
49 Citations
43 Claims
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1. A front-retracting plow comprising:
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a vehicle mount for mounting the plow to a host vehicle;
a main blade mounted to the vehicle mount;
at least one wing blade pivotally mounted to the main blade for travel in an arcuate path relative to the main blade; and
a pivoting connector arm assembly for supporting and swinging the at least one wing blade in said arcuate travel path throughout the full distance between a retracted position in front of the main blade such that at least a substantial portion of the at least one wing blade is disposed in overlapping relation with the main blade, and an extended position in substantial longitudinal alignment with the main blade, whereby a plurality of plowing widths is provided. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A front-retracting plow comprising:
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a vehicle mount for mounting the plow to a host vehicle;
a main blade mounted to the vehicle mount;
at least one wing blade pivotally mounted to the main blade; and
a pivoting connector arm assembly for swinging the at least one wing blade in an arcuate travel path between a retracted position in front of the main blade such that at least a substantial portion of the at least one wing blade is disposed in overlapping relation with the main blade, and an extended position in substantial longitudinal alignment with the main blade, the connector arm assembly being arranged such that the at least one wing blade remains substantially parallel to the main blade during the swinging in the arcuate travel path between the retracted position and the extended position;
whereby a plurality of plowing widths is provided. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A front-retracting plow comprising:
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a vehicle mount for mounting the plow to a host vehicle;
a main blade mounted to the vehicle mount;
at least one wing blade pivotally mounted to the main blade; and
a pivoting connector assembly including a four bar parallel arm linkage comprising a plurality of arms connected between the main blade and each said wing blade, for swinging the at least one wing blade between a retracted position in front of the main blade such that at least a substantial portion of the at least one wing blade is disposed in overlapping relation with the main blade, and an extended position in substantial longitudinal alignment with the main blade. - View Dependent Claims (42, 43)
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Specification