Patent ID: 7942088
Filing Date: 2011-05-17
Classification: B26D,Y10T

Abstract:
1. A rotary cutting unit comprising a rotary cutting drum and an anvil arranged therebeneath; said cutting drum comprising at least one knife member disposed between a pair of axially spaced abutment members; said anvil comprising an axle rotatably positioned in a set of bearings, at least one rotatable anvil portion arranged opposite the at least one knife member, and a pair of load transmitting portions abutting respective ones of said abutment members and positioned axially outward of the set of bearings, and non-rotating load receiving members disposed concentrically with the axle between said at least one rotatable anvil portion and respective ones of said load transmitting members, each of said non-rotating load receiving members connected to said axle by a respective one of said bearings; and a load applying mechanism arranged to apply to the non-rotating load receiving members a variable upward force, wherein the load transmitting portions transmit an upward load from the load applying mechanism to the abutment members.