| 摘要 |
<p>The invention relates to a tree harvester comprising a harvesting arrangement (10), which comprises gripping members (1 1 ) for holding a tree trunk, a cutting device (12) for cutting a tree trunk into separate logs and feeding means (13) for feeding a tree trunk held by the gripping members forward in the longitudinal direction of the tree trunk. The harvesting arrangement com¬ prises measuring means (21 , 22) for establishing a set of meas- uring values related to the cross-sectional shape of a log to be formed from the tree trunk, said set of measuring values com¬ prising measuring values that are established simultaneously by the measuring means and that are related to the cross-sectional shape of said log at three or more different locations (P1 , P2, P3) spaced apart as seen in the longitudinal direction of the log. In¬ formation as to the longitudinal curvature of said log is estab¬ lished based on said set of measuring values.</p> |
