A track assembly to be mounted on a vehicle. The track assembly has a frame, a drive wheel rotationally mounted to the frame, a front idler wheel assembly mounted to the frame, a rear idler wheel assembly mounted to the frame, and a track mounted around the front idler wheel assembly, the rear idler wheel assembly, and the drive wheel, and being in driving engagement with the drive wheel. The track has a plurality of traction lugs distributed along an outer surface of the track. Each traction lug of the plurality of traction lugs has a height in a range of 1.6 inches to 2.5 inches. A distance between a foremost point on the outer surface of the track and a rearmost point on the outer surface of the track is between 54 inches and 65 inches.

A track assembly to be mounted on a vehicle. The track assembly has a frame, a drive wheel rotationally mounted to the frame, a front idler wheel assembly mounted to the frame, a rear idler wheel assembly mounted to the frame, and a track mounted around the front idler wheel assembly, the rear idler wheel assembly, and the drive wheel, and being in driving engagement with the drive wheel. The track has a plurality of traction lugs distributed along an outer surface of the track. Each traction lug of the plurality of traction lugs has a height in a range of 1.6 inches to 2.5 inches. A distance between a foremost point on the outer surface of the track and a rearmost point on the outer surface of the track is between 54 inches and 65 inches.

A track for traction of a vehicle (e.g., a snowmobile), in which the track is studded, i.e., comprises studs, to enhance its traction, including to optimize acceleration, control, and/or braking of the vehicle, such as, for example, by increasing engagement of the studs with a ground on which the vehicle travels (e.g., increasing their number and/or exposure) and/or improving retention of the studs in the track (e.g., better orienting and/or anchoring them), while being lightweight, reducing noise, and/or withstanding high speeds.

A retractable driven track system for wheeled vehicles includes a frame on which is mounted an endless flexible track a pivotable linkage coupled at a lower end thereof to the frame, and adapted for coupling at an upper end thereof to the underside of a vehicle, a selectively actuable actuator operatively coupled to the frame or linkage to selectively raise and lower the track relative to the vehicle when the track is mounted to the vehicle, a drive selectively driving rotation of the track relative to the frame so as to assist in at least forward traction of the vehicle when the track is driven by the drive and the track is lowered into contact with soft ground under the vehicle.

A retractable driven track system for wheeled vehicles includes a frame on which is mounted an endless flexible track a pivotable linkage coupled at a lower end thereof to the frame, and adapted for coupling at an upper end thereof to the underside of a vehicle, a selectively actuable actuator operatively coupled to the frame or linkage to selectively raise and lower the track relative to the vehicle when the track is mounted to the vehicle, a drive selectively driving rotation of the track relative to the frame so as to assist in at least forward traction of the vehicle when the track is driven by the drive and the track is lowered into contact with soft ground under the vehicle.

A tapered short tunnel for use on a tracked vehicle, such as a snowmobile. The tapered short tunnel has a tapered distal end having a width less than a width of an endless track used on the snowmobile. This tapered portion reduces the snowmobile from catching or grabbing snow in a snow trench, thereby enabling the snowmobile to traverse deeper snow.

A track assembly is to be mounted on a drive axle of a vehicle. The track assembly has a frame, at least one leading idler wheel mounted to the front of the frame for rotation about a transverse leading idler wheel axis, at least one trailing idler wheel mounted to the rear of the frame for rotation about a traverse trailing idler wheel axis parallel to the leading idler wheel axis, a single drive wheel assembly, and at least two slide rails. The slide rails have corresponding forward-facing portions, central portions, and rearward-facing portions. The forward-facing portions project from the front ends of the central portions by a projection that is greater than a length of the central portions. A vehicle having the track assembly is also encompassed. A kit of track assemblies is also encompassed.

A track assembly is to be mounted on a drive axle of a vehicle. The track assembly has a frame, at least one leading idler wheel mounted to the front of the frame for rotation about a transverse leading idler wheel axis, at least one trailing idler wheel mounted to the rear of the frame for rotation about a traverse trailing idler wheel axis parallel to the leading idler wheel axis, a single drive wheel assembly, and at least two slide rails. The slide rails have corresponding forward-facing portions, central portions, and rearward-facing portions. The forward-facing portions project from the front ends of the central portions by a projection that is greater than a length of the central portions. A vehicle having the track assembly is also encompassed. A kit of track assemblies is also encompassed.

The invention relates to a tracked vehicle comprising a vehicle body and a track assembly pair. Said track assembly pair is arranged to suspendedly support said vehicle body allowing relative movement between said vehicle body and each track assembly (21) of said track assembly pair. Each track assembly (21) comprises a track support beam (22) configured to support a plurality of road wheels (23, 23a), a drive wheel (24), and a motor (110) for operating said drive wheel (24), an endless track (25) being disposed around said road wheels (23, 23a) and drive wheel (24). Said motor (110) is fixedly arranged to said track support beam (22). Said motor (110) is arranged in connection to the drive wheel (24) such that a motor axle essentially coaxially coincides with a centre axis (Z) of the drive wheel (24).

The invention relates to a tracked vehicle comprising a vehicle body and a track assembly pair. Said track assembly pair is arranged to suspendedly support said vehicle body allowing relative movement between said vehicle body and each track assembly (21) of said track assembly pair. Each track assembly (21) comprises a track support beam (22) configured to support a plurality of road wheels (23, 23a), a drive wheel (24), and a motor (110) for operating said drive wheel (24), an endless track (25) being disposed around said road wheels (23, 23a) and drive wheel (24). Said motor (110) is fixedly arranged to said track support beam (22). Said motor (110) is arranged in connection to the drive wheel (24) such that a motor axle essentially coaxially coincides with a centre axis (Z) of the drive wheel (24).