A track kit for a vehicle (2), having two track assemblies (1, 1), each track assembly having an endless track (5), a front idler wheel (8), an intermediate support member (6) with at least one track engaging element (7), a rear idler wheel (9), a drive wheel (10), at least one swing arm (11, 12) and a shock absorber connecting assembly (13, 14), wherein the endless track (5) has an external side featuring ground lugs (15) for ground engagement and an internal side featuring drive lugs (16) for engagement with the drive wheel (10), and the internal side is circumferentially trained around and in contact with the front idler wheel (8).

A track kit for a vehicle (2), having two track assemblies (1, 1), each track assembly having an endless track (5), a front idler wheel (8), an intermediate support member (6) with at least one track engaging element (7), a rear idler wheel (9), a drive wheel (10), at least one swing arm (11, 12) and a shock absorber connecting assembly (13, 14), wherein the endless track (5) has an external side featuring ground lugs (15) for ground engagement and an internal side featuring drive lugs (16) for engagement with the drive wheel (10), and the internal side is circumferentially trained around and in contact with the front idler wheel (8).

Tracked piste grooming vehicle for maintenance and shaping of snowy terrain, including a crawler chassis which includes, on each side of the chassis, a respective drive wheel, at least four running wheels and a tension wheel, all enclosed by a crawler chain, wherein each running wheel is mounted on a chassis frame in a pretensioned manner by a suspension. Each side of the chassis includes five respective running wheels, with the suspensions thereof having a different pretensioning distribution considered over a vehicle length.

Tracked piste grooming vehicle for maintenance and shaping of snowy terrain, including a crawler chassis which includes, on each side of the chassis, a respective drive wheel, at least four running wheels and a tension wheel, all enclosed by a crawler chain, wherein each running wheel is mounted on a chassis frame in a pretensioned manner by a suspension. Each side of the chassis includes five respective running wheels, with the suspensions thereof having a different pretensioning distribution considered over a vehicle length.

The invention relates to a forest machine, comprising a chassis having sides, a swing bogie mounted on bearings to the chassis, comprising a swing frame, second sides and at least two wheels, a swing bearing attaching the chassis to mount the swing bogie, a power transmission arranged through the swing bearing in connection with the chassis, a support formed by two pairs between the chassis and the swing frame, each pair having a protrusion as a support surface and a rail as a counter surface to transmit lateral forces between the chassis and the swing frame during contact between the two surfaces, wherein each pair is located at a distance from the swing bearing on separate side of the swing bearing, and in each pair, one of the protrusions and the rail is attached to the side of the chassis and other to the second side of the swing frame.

An undercarriage assembly for a tracked vehicle with a prime mover that provides a torque to the tracked vehicle, a final drive sprocket configured to provide a final drive torque on a track, a transmission mechanically coupled to the prime mover and the final drive sprocket to selectively transfer at least some of the torque generated by the prime mover to the final drive sprocket, at least one idler wheel that contacts the track, and an electric motor that provides an idler torque to the at least one idler wheel. Wherein, torque is distributed to the track through both the final drive sprocket and the idler wheel.

An undercarriage assembly for a tracked vehicle with a prime mover that provides a torque to the tracked vehicle, a final drive sprocket configured to provide a final drive torque on a track, a transmission mechanically coupled to the prime mover and the final drive sprocket to selectively transfer at least some of the torque generated by the prime mover to the final drive sprocket, at least one idler wheel that contacts the track, and an electric motor that provides an idler torque to the at least one idler wheel. Wherein, torque is distributed to the track through both the final drive sprocket and the idler wheel.

A track system for traction of a vehicle (e.g., a snowmobile, an all-terrain vehicle (ATV) etc.). The track system comprises a track and a track-engaging assembly for driving and guiding the track around the track-engaging assembly. The track system may have various features to enhance its traction, floatation, and/or other aspects of its performance, including, for example, a lightweight design, enhanced tractive effects, an enhanced heat management capability, an enhanced resistance to lateral skidding (e.g., on a side hill), an adaptive capability to adapt itself to different conditions (e.g., ground conditions, such as different types of snow, soil, etc.; and/or other conditions), an adjustability of a contact area of its track with the ground, and/or other features.

A track system for traction of a vehicle (e.g., a snowmobile, an all-terrain vehicle (ATV) etc.). The track system comprises a track and a track-engaging assembly for driving and guiding the track around the track-engaging assembly. The track system may have various features to enhance its traction, floatation, and/or other aspects of its performance, including, for example, a lightweight design, enhanced tractive effects, an enhanced heat management capability, an enhanced resistance to lateral skidding (e.g., on a side hill), an adaptive capability to adapt itself to different conditions (e.g., ground conditions, such as different types of snow, soil, etc.; and/or other conditions), an adjustability of a contact area of its track with the ground, and/or other features.

The present invention relates to crawler vehicles and more particular to track chain suspension mechanisms, which provide for a smooth and levelled operation of the vehicle. The track chain suspension mechanism of the present invention is characterized in having a first and a second track frame, the first frame being suspended to the vehicle by means of a suspension shaft pivotally and slidable mounted to a suspension frame, the second track frame pivotally connected to the vehicle by means of a drive shaft mounted to a drive frame and wherein said first and second track frame pivotally connected to one another by means of a pivot shaft. In its application for concrete path laying machines the track chain suspension mechanism is further characterized in comprising only one idler at the front of the first track frame.