A log processing head (10) is provided with a top knife (22) and moveable feedmeans (16) anddelimbing and/or debarking means (18) pushing a log (48) against said topknife (22) by meansof actuators (20). In order to allow the top knife (22) to follow the contourof the log (48) withoutdamaging a pin (40) holding the knife (22), a pivot joint (60) is used betweenthe knife (22) andthe connection of the pin (44) on the structure (12).
