MECHANISM FOR ROTATING A TREE-FELLING IMPLEMENT AND TREE-FELLING IMPLEMENT THEREWITH

摘要

The mechanism is used for rotating a tree-felling implement rotatably connected to a distal end of a boom of a logging vehicle by an implement pivot. The mechanism comprises a pinion coaxial with the implement pivot and fixed in rotation with reference to the distal end of the boom. A hydraulic motor is mounted on the frame of the implement and is mechanically connected to the motor and the pinion by a coupling device, such as a chain. In use, the implement is rotated as the motor is operated. The mechanism provides a simple and reliable construction for rotating a tree-felling implement that is capable of rotating the implement with reference to the boom plane in both directions and according to a wide range of angles.