Patent ID: 7849772
Filing Date: 2010-12-14
Classification: B26D,Y10T

Abstract:
1. A rotary cutting apparatus, comprising: a cutter drum having at least one cutting member; an anvil drum having a rotary axis and arranged in a cutting relationship to said cutter drum, wherein a bearing housing is arranged on each axial side of the anvil drum; a pressure actuating means for subjecting pressure on said cutting member in relation to said anvil drum, said pressure actuating means arranged to cooperate with a pair of levers, said pair of levers being rotatable about a pair of hinges having a horizontal axis and connected to said pair of hinges at a respective proximal end of said levers, said horizontal axis being parallel to but non-concentric with said rotary axis, said pressure actuating means disposed adjacent to distal ends of said pair of levers and causing said levers to rotate about said hinges at their ends in an arc-shaped movement; a frame for supporting the cutter drum and the anvil drum in a rotatable relationship, wherein said pair of levers are releasably connected to the bearing housing and rotatable about said pair of hinges in such a way that the anvil drum is allowed to be removed from the frame; and at least one spring means arranged to act on said distal ends of the levers, said spring means positioned opposite to said actuating means for applying a counterbalancing linear force; wherein said horizontal axis of said levers is arranged vertically above said rotary axis and wherein said pressure actuating means actuates on said levers on the same side of a vertical plane through the horizontal axis as the rotary axis.