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.

A gateway interface controller for a work machine includes a CAN bus interface component configured to communicate over a CAN bus of the work machine. The gateway interface controller includes message logic configured to process a request signal, indicative of a requested work machine action, that is received from a remote control, wherein the message logic validates the request signal based on a validation criterion. The gateway interface controller includes command generator logic configured to, based on the validation, generate a CAN signal that corresponds to the request signal and communicate the CAN signal over the CAN bus.

A cable use system includes a plurality of support posts, a cable supported by the support posts, a winding device configured to wind the cable, a hoisting device coupled to the cable and configured to move in an air when the cable is wound by the winding device, and a cutting device hung from the hoisting device. The cutting device includes a cutting unit configured to cut a surface side of a tree all around.

A method includes accessing a first dataset including aerial imagery data, accessing a second dataset including property boundary data, and identifying property boundaries associated with a geographic area. A plurality of artificial-intelligence (AI) models are applied to the datasets to identify and compute information of interest. Based on the first dataset and constrained by the property boundaries, a building detection model can be applied to identify a building footprint, and a tree detection model can be applied to identify one or more trees. An estimated distance can be determined between each of the trees and a nearest portion of the building footprint as separation data, which can be compared to a defensible space guideline to determine a defensible space adherence score. A wildfire risk map can be generated, including the defensible space adherence score associated with the geographic area.

A method includes accessing a first dataset including aerial imagery data, accessing a second dataset including property boundary data, and identifying property boundaries associated with a geographic area. A plurality of artificial-intelligence (AI) models are applied to the datasets to identify and compute information of interest. Based on the first dataset and constrained by the property boundaries, a building detection model can be applied to identify a building footprint, and a tree detection model can be applied to identify one or more trees. An estimated distance can be determined between each of the trees and a nearest portion of the building footprint as separation data, which can be compared to a defensible space guideline to determine a defensible space adherence score. A wildfire risk map can be generated, including the defensible space adherence score associated with the geographic area.

A hitch mechanism for a work vehicle configured for operation on slopes. The hitch mechanism couplable to a tether fixed in position up the slope. An arm extends outwardly and upwardly from the work vehicle frame and supports a tether engaging structure couplable to the tether. The arm is mounted to the frame structure beneath the body portion of the work vehicle and extends rearwardly from the frame to support the tether engaging structure rearwardly of the body portion and rearwardly of the ground engaging drive mechanism. The hitch includes a pivot structure coupling the arm to the frame that allows the arm to pivot about a horizontal axis such that the arm is shiftable vertically. A controller receives inputs corresponding to at least one vehicle parameter and is operatively coupled to an actuator for causing the arm to shift in response to changes in the vehicle parameter.

A hitch mechanism for a work vehicle configured for operation on slopes. The hitch mechanism couplable to a tether fixed in position up the slope. An arm extends outwardly and upwardly from the work vehicle frame and supports a tether engaging structure couplable to the tether. The arm is mounted to the frame structure beneath the body portion of the work vehicle and extends rearwardly from the frame to support the tether engaging structure rearwardly of the body portion and rearwardly of the ground engaging drive mechanism. The hitch includes a pivot structure coupling the arm to the frame that allows the arm to pivot about a horizontal axis such that the arm is shiftable vertically. A controller receives inputs corresponding to at least one vehicle parameter and is operatively coupled to an actuator for causing the arm to shift in response to changes in the vehicle parameter.

The invention relates to a method and forest work machine (1) making use of it, by means of which the control of the forest work machine is assisted. In the forest work machine, a light source (2) is adapted, which may be directed to one or more different parts of the surroundings around it, forming the working area of the forest work machine. This is adapted to produce at least one specifically defined specified-form light pattern (3) on said working area. With such a light pattern, visual information content may be produced on the working area to support an operator of the forest work machine in their work. As content of such information, it is possible to define control measures for the forest work machine, performed in any working area or their restrictions.

The invention relates to a method and forest work machine (1) making use of it, by means of which the control of the forest work machine is assisted. In the forest work machine, a light source (2) is adapted, which may be directed to one or more different parts of the surroundings around it, forming the working area of the forest work machine. This is adapted to produce at least one specifically defined specified-form light pattern (3) on said working area. With such a light pattern, visual information content may be produced on the working area to support an operator of the forest work machine in their work. As content of such information, it is possible to define control measures for the forest work machine, performed in any working area or their restrictions.

A condition of at least one structural part (11) of a working machine (10) is determined by determining a computational position of the first structural part (11′) on the basis of the computational model of the working machine (10) and determining an actual position of the first structural part (11′) by detecting means (22). The condition of the at least one structural part (11) is determined on the basis of the difference between the computational position of the first structural part (11) and the actual position of the first structural part (11).