Feeding device for advancing undelimbed tree trunks

A feeding device for advancing undelimbed tree trunks along a feed path to and through a delimbing unit for delimbing the trunks, comprising a pair of rotatable feed rolls arranged opposite each other on one side of the feed path and supported on rotation shafts, said rotation shafts being supported on a base, said feed rolls having side surfaces adapted to contact a tree trunk, characterized in that said rotation shafts of said feed rolls are arranged substantially to angle inwardly with respect to said tree trunk, the angles of each of said rotation shafts being equal with respect to said base, said shafts intersecting one another at their imagined extensions at an angle the bisector plane of which has substantially the same perpendicular distance to all points on the side surfaces of the feed rolls facing toward said plane, all points on the side surface of either of said pair of feed rolls facing said plane being located at the same radial distance from the corresponding points on the side surface of the other of said pair of feed rolls.