A track assembly mounted to a rotating wheel drive of a vehicle that includes a frame with inboard and outboard frame members having a center gap between them. A bearing housing is mounted to the outboard frame member. A hub adaptor has a peripheral wall forming a hollow interior that receives the wheel drive. Separate annular flanges are connected to and extend away from inner and outer surfaces of the peripheral wall and connect to the wheel drive and a sprocket surrounding the hub adaptor. As the hub adaptor rotates within the bearing housing, the sprocket rotates within the center gap of the frame. Idler are rotatably connected to opposed ends of the frame. An endless track is routed over the sprocket and around the idlers. The endless track engages with and is driven by rotation of the sprocket in order to circulate the track about the frame in a generally triangular path.

A track system comprising a dynamic tensioning device located between an idler wheel and the support frame as to apply proper tension in the track. The dynamic tensioning device is adapted to block at its current length upon the occurrence of a determined condition. The dynamic tensioner is adapted to substantially maintain its length when an acceleration and or deceleration of the track system reaches a predetermined value. For instance, such characteristic is relevant in an event of emergency braking. A dynamic tensioner would become contracted and the tension in the endless track would become too low. A low tension could cause the endless track to ratchet.

A crawler monitoring system according to the present disclosure includes a sensor configured to acquire information on a distance between an elastic crawler and a drive wheel and a monitoring member configured to monitor whether a measured value measured based on the information from the sensor is a preset predetermined value or more.

The hydraulic drive powered endless track drive motorcycle is a track cycle comprising a front track assembly, a rear track assembly, a power plant, and a frame. The front and rear track assemblies use an endless track circulating around a driven sprocket, bogie sprockets, and idlers to distribute the weight of the vehicle and provide greater traction than a tire would provide. The track assemblies are driven by hydraulic motors that receive pressurized hydraulic fluid from a power plant mounted to the frame. The power plant comprises an internal combustion engine driving a hydraulic pump and a hydraulic expansion tank. A seat is mounted to the top of the frame. The front track assembly is steerable using handlebars and a suspension system pivotably mounted to the front of the frame.

The hydraulic drive powered endless track drive motorcycle is a track cycle comprising a front track assembly, a rear track assembly, a power plant, and a frame. The front and rear track assemblies use an endless track circulating around a driven sprocket, bogie sprockets, and idlers to distribute the weight of the vehicle and provide greater traction than a tire would provide. The track assemblies are driven by hydraulic motors that receive pressurized hydraulic fluid from a power plant mounted to the frame. The power plant comprises an internal combustion engine driving a hydraulic pump and a hydraulic expansion tank. A seat is mounted to the top of the frame. The front track assembly is steerable using handlebars and a suspension system pivotably mounted to the front of the frame.

A steerable track system usable with a vehicle that has a chassis, an axle frame extending laterally outwardly from the chassis and having an attachment portion at an end thereof to which the steerable track system is connectable, and a driven shaft extending laterally outwardly from the chassis suitable for driving the steerable track system. The steerable track system has a frame having a cavity defined therein and being operatively connectable to the axle frame so as to be pivotable about a steering axis for steering the track system, and a gear train with components disposed in the cavity. The gear train transmits driving forces from the driven shaft to a driven wheel assembly of a plurality of track-supporting wheel assemblies. An endless track extends around the track-supporting wheel assemblies and is drivable by the driven wheel assembly.

A steerable track system usable with a vehicle that has a chassis, an axle frame extending laterally outwardly from the chassis and having an attachment portion at an end thereof to which the steerable track system is connectable, and a driven shaft extending laterally outwardly from the chassis suitable for driving the steerable track system. The steerable track system has a frame having a cavity defined therein and being operatively connectable to the axle frame so as to be pivotable about a steering axis for steering the track system, and a gear train with components disposed in the cavity. The gear train transmits driving forces from the driven shaft to a driven wheel assembly of a plurality of track-supporting wheel assemblies. An endless track extends around the track-supporting wheel assemblies and is drivable by the driven wheel assembly.

A track section (10) adapted to be linked to a plurality of similar track sections to form a track belt for mounting around the outer periphery of vehicle tyres. The track section comprises a crossbar member (11) and two lateral support members (12). A ground engageable support surface is provided on the outer side (14) of the crossbar member and comprises first and second elongated support surface sections (16, 17) extending in parallel with each other in the longitudinal direction of the crossbar member on opposite sides of a longitudinal centre line of the crossbar member. Each one of these elongated support surface sections (16, 17) is undulated, at least over a major part of its longitudinal extension, so as to form undulated support surface areas (18) with wave crests (19)and wave troughs (20) extending in the cross-direction of the crossbar member.

A track section (10) adapted to be linked to a plurality of similar track sections to form a track belt for mounting around the outer periphery of vehicle tyres. The track section comprises a crossbar member (11) and two lateral support members (12). A ground engageable support surface is provided on the outer side (14) of the crossbar member and comprises first and second elongated support surface sections (16, 17) extending in parallel with each other in the longitudinal direction of the crossbar member on opposite sides of a longitudinal centre line of the crossbar member. Each one of these elongated support surface sections (16, 17) is undulated, at least over a major part of its longitudinal extension, so as to form undulated support surface areas (18) with wave crests (19)and wave troughs (20) extending in the cross-direction of the crossbar member.

A track system for traction of a vehicle that is connectable to an axle of the vehicle and includes a track and a track-engaging assembly for driving and guiding the track around the track-engaging assembly. The track-engaging assembly includes a drive wheel for driving the track, idler wheels for contacting a bottom run of the track, and a bogie carrying the idler wheels. The track system includes a transmission for transmitting power from the axle of the vehicle to the drive wheel such that a rotational speed of the drive wheel is different from a rotational speed of the axle of the vehicle. The track system includes a connector disposed between the transmission and the bogie such that the bogie is movable (e.g., pivotable) relative to the transmission. The connector may be disposed below an output shaft of the transmission.