Patent ID: 7735762

Claim:
A knife system for a disc chipper, the disc including several chip openings trough the disc and a knife at each chip opening, each knife projecting from the respective opening on one side of the disc in a operation position, a wear plate for covering the knife side of the disc essentially on the area from one chip opening to the next one, a press block adjacent each chip opening, each press block being urged in the axial direction of the disc towards the respective wear plate for clamping a knife in said operation position between the respective wear plate and the press block, each wear plate being supported to the knife disc by means of a hinge strip located adjacent to the respective knife and an adjustment strip located in a space adjacent to the next chip opening for adjusting the inclination of the wear plate with respect to the surface of the knife disc, wherein the space provided for the adjustment strip is convergent towards the chip opening, the adjustment strip is correspondingly wedge-shaped and is furnished with position adjusting and locking means.