Patent ID: 8813466
Filing Date: 2014-08-26
Classification: A01D,A01F

Abstract:
1. A cutting unit for agricultural machines, or for balers or loading wagons, comprising: a rotor including an at least substantially cylindrical base body carrying tine arrangements, the tine arrangements being parallel to each other in planes perpendicular to an axis of the base body and distributed in the direction of the axis of the base body with intermediate distances in between, each tine arrangement including at least one tine including a base secured to the base body and at least one outwardly protruding, substantially triangular tine tip, the tine tip including a conveying flank leading in a direction of rotation of the rotor and extending from an outer tine end to a transition into the base; a cutting unit bottom distant from the rotor forming a lower boundary of a conveying channel through the cutting unit; cutting blades protruding from the cutting unit bottom through the conveying channel besides moving paths of the tine tips, cutting edges of the cutting blades being oriented counter to the conveying direction in the conveying channel as defined by the direction of rotation of the rotor; and scrapers placed in conveying direction behind the rotor, the scrapers extending in between the tine arrangements close to a periphery of the base body, wherein an outwardly facing compression surface is provided at least at the base of the tine in the direction of rotation of the rotor ahead of the conveying flank, and the compression surface gradually ascends opposite to the direction of rotation at least substantially up to the transition into the conveying flank, and wherein the compression surface while passing the scraper presents an open obtuse angle of 135° or more with the scraper.