The invention relates to a method in mechanical timber harvesting. In the method a data system (41) is utilized, in a display device (17) in connection with which previously collected data on a forest machine (10) and/or the surroundings of the forest machine (10) are displayed as a visual element (25). The surroundings of the forest machine (10) are observed using one or more optical devices (28). The observations are recorded time-linked in the data system (41) as a window (42) to be shown in the display device (17) for later utilization. The invention also relates to a system in mechanical timber harvesting.

A condition of at least one structural part (11′, 11″) of a working machine (10) is determined by detecting (201) a force of a changing magnitude to a first structural part (11′) or a structural part connecting the first structural part (11) to the second structural part (11″), determining (203) a change in the position of the first structural part with respect to the second structural part as a function of the force detected, and determining (205) the condition on the basis of the change in the position of the first structural part with respect to the second structural part as a function of the force detected. At least a slope of the change in the magnitude of the force is detected.

A hoisting apparatus includes a rotation device with connectors for connecting pressure-medium lines to a rotation device, a boom, from which the pressure-medium lines are arranged to lead to the rotation device, and a pivoted joint for suspending the rotation device on the boom. The pivoted joint includes two consecutive pivots in a longitudinal direction of the rotation device. The rotational axes of the pivots are at right-angles to each other. The pressure-medium lines are routed between lugs of the pivot on a boom side of the pivoted joint, past the connectors of the rotation device in the longitudinal direction of the rotation device, to turn towards the connectors to form a hose loop and then routed to the connectors of the rotation device. The pressure-medium lines are arranged on both sides of the rotation device related to a plane defined in the longitudinal direction of the boom and the longitudinal direction of the rotation device.

A lever device for lifting an object off the ground includes a lever member having a distal end that is positionable immediately adjacent a bottom end of the object. The lever device also includes a grip member that is operable with the lever member to lift the object off the ground. The grip member is adjustable relative to the lever member to accommodate a size of the object being lifted off the ground. The grip member includes a toothed or hooked end that grips an upper surface of the object to be lifted off the ground. The lever device further includes a handle that is graspable by a user to impart a lever force to the grip member and the lever member and thereby lift the object off the ground.

A grabbing device having a plurality of jaws which can be moved between an open position and a closed position to enable the device to grasp an object(s). The technology finds particular application in the forestry industry and moving logs.

A hitch attachment for dragging logs from a vehicle. The hitch attachment includes a base having a distal end and a proximal end. The proximal end of the base is configured to fit within a tow receiver of the vehicle. A vertical frame extends from the base in between the proximal end and the distal end. A log cradle is coupled to the distal end of the base. The log cradle includes a plurality of vertically extending teeth.

A forestry machine includes a ground propulsion apparatus, a chassis supported by the ground propulsion apparatus, a cab, an engine and a work implement. The chassis includes a front chassis portion and a rear chassis portion. The front chassis portion includes an upper portion and a lower portion. The rear chassis portion has a wood basket supported thereon. The cab is rotatably supported on the front chassis portion by a rotatable connection about a cab rotation axis to be selectively rotated 360 degrees. The engine is integrated into the front chassis portion. At least a part of the engine is disposed below an upper most surface of the upper portion. The work implement is movably attached to the cab. The work implement includes a boom movably attached to the cab, an arm movably attached to the boom, and a work tool attached to the arm.

A device for securing logs from harvested timber to a transport vehicle, or logging truck, using log wrappers. The log wrapper securement device can be located in the inspection cavity of a forestry grapple. The forestry grapple is attached to a log loader. The log wrapper securement device includes a base plate sized and shaped to replace the inspection plate covering the inspection cavity. The base plate includes a slot sized and shaped to receive a portion of a chain end link or other chain links of the log wrapper, which can be inserted manually. The loader operator can remotely control the actuator to secure the chain link and release it, once the log wrapper is positioned over the other side of the logging truck. The log wrapper securement device can potentially reduce injuries and save lives.

An apparatus for handling bulk material, the apparatus comprising a spreader configured for attachment to a crane, the spreader having a spreader body having a first engagement formation. The apparatus includes a bulk material storage cradle having a first side member and a second side member, the first and second side members defining two opposing longitudinal side walls which are spaced relative to each other to define an internal bulk material storage receptacle. The bulk material storage cradle has a second engagement formation, and at least one gate member having a proximal end hingedly connected to a lower portion of the first side member and a distal end having a third engagement formation configured to selectively engage with a fourth engagement formation located at a lower portion of the second side member. The first engagement formation is selectively engageable with the second engagement formation to secure the spreader to the bulk material storage cradle. The third engagement formation is selectively disengageable from the fourth engagement formation to release the gate member from the second side member.

A device for securing logs from harvested timber to a transport vehicle, or logging truck, using log wrappers. The log wrapper securement device can be located in the inspection cavity of a forestry grapple. The forestry grapple is attached to a log loader. The log wrapper securement device includes a base plate sized and shaped to replace the inspection plate covering the inspection cavity. The base plate includes a slot sized and shaped to receive a portion of a chain end link or other chain links of the log wrapper, which can be inserted manually. The loader operator can remotely control the actuator to secure the chain link and release it, once the log wrapper is positioned over the other side of the logging truck. The log wrapper securement device can potentially reduce injuries and save lives.