B - Operations – Transporting – 60 – B
Patent
B - Operations, Transporting
60
B
B60B 33/00 (2006.01) E01H 5/06 (2006.01)
Patent
CA 2316150
A single wheel caster apparatus is disclosed for supporting a plow. The apparatus includes a wheel and an axle, the axle extending through the wheel such that the wheel is rotatably supported by the axle. Additionally, a first and a second fork are provided with each fork having a proximal and a distal end. A head which defines a plurality of detents is rigidly secured to a cross member and extends therefrom in a direction away from the wheel. A tube has a first and second extremity and defines a bore for the reception therein of the head. The tube defines a first radial passageway which is disposed in the vicinity of the detents. A flexible tubular lining is disposed within the bore of the tube. A first member is slidably disposed within the first passageway with the first member being disposed adjacent to the lining such that the lining is located between the first member and one of the detents. Also, a first spring is disposed within the first passageway for biasing the first member towards the one of the detents, the arrangement being such that an interaction of the first member with the lining permits controlled relative rotation of the head within the tube so that when the wheel rotates about the axle, wobble of the wheel and the forks is inhibited, while the interaction permits rotation of the forks relative to the tube during turning and reversing of the plow.
Feller Richard L.
Gowling Lafleur Henderson Llp
Monroe Truck Equipment Inc.
LandOfFree
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