Track assembly for a motorized vehicle

A driving gear for transferring power from a vehicle wheel to a track of a vehicle track assembly, the driving gear comprising a body in the shape of a hollow cylinder having two spaced-apart open ends, a central axle and a plurality of longitudinally oriented, and regularly circumferentially interspaced traction bars defining the cylindrical shape and being adapted for receiving traction from the vehicle wheel, and a plurality of channels interspersed between corresponding ones of the traction bars, the channels being shaped for evacuating snow from the track inside the hollow cylinder and out the two open ends.

A method of mounting at least one vehicle track assembly to a vehicle, the method comprising laying the at least one vehicle track assembly on the ground, attaching at least one ramp to one end of each one of the at least one vehicle track assembly, displacing the vehicle for a wheel thereof to mount the at least one ramp and drop into an operative position in the at least one vehicle track assembly, and removing the at least one ramp.

A track unit kit for a motorized vehicle having a plurality of wheels, the track unit kit comprising:

• a track assembly including a frame, a longitudinal endless track belt movably mounted to the frame, inner wheels rotatably mounted to the frame and in contact with an inner surface of the longitudinal endless track belt, and at least two driving gears disposed externally to the longitudinal endless track belt, located above the longitudinal endless track belt and drivingly connected to the endless track belt for transmitting motion thereto, each one of the driving gears having a central rotation axis with a plurality of elongated traction bars extending substantially parallel and circumferentially to the central rotation axis, the elongated traction bars being radially spaced-apart from the rotation axis and from one another for defining channels therebetween;
• and
• a ramp for mounting and dismounting the vehicle wheels from the track assembly above the endless track belt and between the driving gears, the ramp having an attachment bar mating and engageable with one of the channels defined in the driving gears and preventing rotation of the driving gears during mounting and dismounting the vehicle wheels from the track assembly.