Abstract: The invention relates to a method in a forest machine. In the method the surroundings of the forest machine are observed using one or more sensors. The observations are assembled to form a database of the surroundings, and the database is utilized in the operation of the forest machine. In the method observations of a limited area are used. In addition, a database is formed in real time in the forest machine. Further, a view is formed from the database of selected observations, from which a track in the surroundings is recognized. The forest machine is then oriented in the direction of the track, once the forest machine's direction of travel relative to the recognized track has been recognized. The invention also relates to a system in a forest machine.

Abstract: An apparatus comprising means for collecting data measured from operation and/or a state of a forestry machine and/or describing an environment thereof, which date may consist of one or more parameters, means for processing the collected data, and means for influencing, on the basis of the processed data, one or more parameters controlling the operation of the forestry machine or for conveying feedback or an instruction or a prompt to a driver to change his or her control.

Abstract: The invention relates to a method in the check weighing of a weighing system. In the method, a hoist (15) equipped with a weighing system (14) is used to lift a load (27), which is weighed, and the value measured by the weighing system (14) is recorded. In the method, the weighing system (14) is adjusted as required, on the basis of the recorded values. A real load (28), which is weighed when not moving, is used as the load (27). The same real load (28) is also weighed during a normal movement while moving. A reference value is defined from these two weighings of the same real load (28), on the basis of which the weighing system (14) is adjusted if necessary and/or the precision probably achieved by the weighing system (14) is estimated. The invention also relates to a software product and an arrangement in the check weighing of a weighing system, and materials handling equipment.

Abstract: The invention relates to a method in the check weighing of a weighing system. In the method, a hoist (15) equipped with a weighing system (14) is used to lift a load (27), which is weighed, and the value measured by the weighing system (14) is recorded. In the method, the weighing system (14) is adjusted as required, on the basis of the recorded values. A real load (28), which is weighed when not moving, is used as the load (27). The same real load (28) is also weighed during a normal movement while moving. A reference value is defined from these two weighings of the same real load (28), on the basis of which the weighing system (14) is adjusted if necessary and/or the precision probably achieved by the weighing system (14) is estimated. The invention also relates to a software product and an arrangement in the check weighing of a weighing system, and materials handling equipment.

Abstract: An apparatus comprising means for collecting data measured from operation and/or a state of a forestry machine and/or describing an environment thereof, which date may consist of one or more parameters, means for processing the collected data, and means for influencing, on the basis of the processed data, one or more parameters controlling the operation of the forestry machine or for conveying feedback or an instruction or a prompt to a driver to change his or her control.

Abstract: The invention relates to a method and arrangement for measuring a timber piece (4) in a wood handling machine (1). Such a wood handling machine comprises booms (2) arranged in a base machine and a wood handling device (3) operating therein. In such a wood handling machine (1), a wood handling device (3) grips the timber piece (4) to be handled, after which one end of the timber piece is guided into a measuring carriage (5) in the wood handling machine by the wood handling device. The timber piece arranged in the measuring carriage is subjected to one or more observation measures by observation means provided in the measuring carriage.

Abstract: The invention relates to a method and arrangement for measuring a timber piece (4) in a wood handling machine (1). Such a wood handling machine comprises booms (2) arranged in a base machine and a wood handling device (3) operating therein. In such a wood handling machine (1), a wood handling device (3) grips the timber piece (4) to be handled, after which one end of the timber piece is guided into a measuring carriage (5) in the wood handling machine by the wood handling device. The timber piece arranged in the measuring carriage is subjected to one or more observation measures by observation means provided in the measuring carriage.

Abstract: The present invention relates to a delimbing and cutting head of a harvesting machine, including a body (22) mounted tiltably and rotatably on the machine boom, which body is provided with a pair of grip arms (14,16) articulatedly mounted on the body (22), grip arms (14,16) being sharpened along at least on one edge so that they simultaneously serve as delimbing blades, a cutting saw (19), and a pair of drive wheels (100). Each drive wheel (100) including a hub liner (101), an elastic material layer (102) has been adhered around the hub liner, first and second fixing flanges (112,113) each arranged along an axially side of the wheel, each of the flanges including a plurlity of thorughbores each adapted for receiving a chain therethrough, and pins (119) for securing each end of each chain to one of the first and second fixing flanges. In this way, the chains can be secured to the first and second fixing flanges and pretightened in place to compress the elastic material layer in an axial direction.