The present invention relates to a drive sprocket member for a drive wheel member of a tracked vehicle. The drive wheel member is rotatable about a centre axis for rotating an endless track. Said drive sprocket member comprises a set of tooth members arranged around the circumference of said drive sprocket member, and a ring-shaped support member for said tooth members. Said tooth members are, in an operation position, configured to project from the ring-shaped support member in a main direction essentially parallel to the axial direction of said centre axis. Said tooth members are arranged in connection to said ring-shaped support member and shaped so as to provide resilient properties in the radial direction such that, if a tooth member is subjected to a radial force exceeding a certain threshold, said tooth member is configured to deform relative to its operation position.

A compact utility loader compact utility loader comprising a frame, a first track and a second track positioned on either side of the frame, and a pair of loader arms. The loader arms are configured to couple with an attachment via a hitch plate and a hitch pin. The compact utility loader is configured such that as the loader arms are raised and lowered, the hitch pin follows a path approximately defined by a curve f(x)=4.641e.sup.0.34x The value “x” represents a horizontal direction and the function f(x) represents a vertical direction.

A compact utility loader compact utility loader comprising a frame, a first track and a second track positioned on either side of the frame, and a pair of loader arms. The loader arms are configured to couple with an attachment via a hitch plate and a hitch pin. The compact utility loader is configured such that as the loader arms are raised and lowered, the hitch pin follows a path approximately defined by a curve f(x)=4.641e.sup.0.34x The value “x” represents a horizontal direction and the function f(x) represents a vertical direction.

A compact utility loader compact utility loader comprising a frame including a lower portion and an upper portion. A width of the lower portion is smaller than a width of the upper portion. The compact utility loader additionally comprises a first track and a second track, with each track being positioned on a side of the frame. Each of the tracks has a width of at least 7.5 inches, and the compact utility loader has an overall width of no more than 36 inches.

A compact utility loader compact utility loader comprising a frame including a lower portion and an upper portion. A width of the lower portion is smaller than a width of the upper portion. The compact utility loader additionally comprises a first track and a second track, with each track being positioned on a side of the frame. Each of the tracks has a width of at least 7.5 inches, and the compact utility loader has an overall width of no more than 36 inches.

An improved suspension system for a track-driven work vehicle includes a roller beam and at least one roller wheel assembly coupled to the roller beam. The roller wheel assembly includes an inboard roller shaft, an inboard roller wheel coupled to the inboard roller shaft, an outboard roller shaft, and an outboard roller wheel coupled to the outboard roller shaft. Additionally, the roller wheel assembly includes a pivot mechanism coupling the inboard roller shaft to the outboard roller shaft.

An improved suspension system for a track-driven work vehicle includes a roller beam and at least one roller wheel assembly coupled to the roller beam. The roller wheel assembly includes an inboard roller shaft, an inboard roller wheel coupled to the inboard roller shaft, an outboard roller shaft, and an outboard roller wheel coupled to the outboard roller shaft. Additionally, the roller wheel assembly includes a pivot mechanism coupling the inboard roller shaft to the outboard roller shaft.

An improved suspension system for a track-driven work vehicle includes a main undercarriage support beam and a rear suspension assembly provided in operative association with the main undercarriage support beam. In one embodiment, the rear suspension assembly includes a rear rocker arm that pivotably couples both a rear idler wheel and a separate rear roller wheel of the system to the main undercarriage support beam.

This application provides a robotic pool cleaner comprising a cleaning body, a drive and a cleaning roller brush mechanism. The robotic pool cleaner filters liquid and/or contaminants in a pool through the cleaning body. The drive mechanism is connected to the cleaning body. The cleaning body is driven to move in the pool in a working process of the robotic pool cleaner. The drive mechanism comprises a drive wheel with a first outer ring gear, the first outer ring gear is externally engaged with the cleaning roller brush mechanism, so that the cleaning roller brush mechanism is driven by the first outer ring gear to rotate relative to the cleaning body when the drive motor drives the first outer ring gear to rotate. The robotic pool cleaner provided in this application can improve cleaning efficiency and reduce wear of a cleaning roller brush, so that the service life of the cleaning roller brush mechanism is prolonged.

This application provides a robotic pool cleaner comprising a cleaning body, a drive and a cleaning roller brush mechanism. The robotic pool cleaner filters liquid and/or contaminants in a pool through the cleaning body. The drive mechanism is connected to the cleaning body. The cleaning body is driven to move in the pool in a working process of the robotic pool cleaner. The drive mechanism comprises a drive wheel with a first outer ring gear, the first outer ring gear is externally engaged with the cleaning roller brush mechanism, so that the cleaning roller brush mechanism is driven by the first outer ring gear to rotate relative to the cleaning body when the drive motor drives the first outer ring gear to rotate. The robotic pool cleaner provided in this application can improve cleaning efficiency and reduce wear of a cleaning roller brush, so that the service life of the cleaning roller brush mechanism is prolonged.