Patent ID: 9386741
Filing Date: 2016-07-12
CPC Classification: A01D,A01F

Claim Text:
1. A rotatable cutting drum comprising knife holders for attaching cutter knives thereto, each knife holder comprising a knife holder body formed by a forward member and a rear member and a knife connecting portion, said rear member extending from the connecting portion towards the rotational axis of the drum and having an extension member which extends circumferentially of the rotational axis in a direction opposite to the direction of rotation of the drum, said forward member extending from the connecting portion towards the drum rotation axis and abutting with the extension member of an adjacent knife holder positioned forward of said knife holder in the direction of rotation of the drum so that the number of knife holders on the drum is increased or decreased by altering the position of abutment between the forward member of one knife holder and the rear member of an adjacent knife holder.