EP0121103A1 — Multiple rotor mowers

USPTO Abstract

Rotor mowers having flat L-shaped blades in which the vertical portions (40, 41) are spring mounted relative to the rotating rotors (10, 11) are disclosed having a spring mounting providing yielding of the horizontal portion (42, 43) of the blade in both a vertical and horizontal direction when it strikes an obstruction and automatic return of the blade to its mowing position. Discs horizontally disposed at the lower ends of the rotors (10,11) are segmented into readily detachable and replaceable disc portions (135a-e) for easy replacement of any disc portions damaged by contact with rocks. Closed ground engaging skids (14, 15) are provided beneath the discs, the ground engaging skids being formed from two dish-shaped portions having a fastening flange extending outwardly from their adjacent open ends so that the bottom portion of each disc is readily detachable and replaceable providing replacement of the bottom portion of the ground engaging skid when damaged or to obtain different height adjustments of the mower rotor assemblies.