FLEXIBLE WIDE-LEVEL HARROW Russian patent published in 1995 - IPC

FIELD: agricultural engineering. SUBSTANCE: harrow has tubular frame and chain coverer connected to frame. Links of chain coverer are made with length increasing from center to ends and are furnished with equal-height ripping teeth. Fitted on ends of frame tube are brackets in which caster wheels are installed on axles with fork. Compression spring is secured on axle. Free end of compression spring thrusts against bracket with catcher. Mounted on axle is lock with wedge-type starting part and stop for engagement with catcher. Chain links increasing in length provide uniform harrowing, reduce energy consumption and metal usage in manufacture of device, and spring-loaded caster wheels enhance maneuverability of harrow coverer. In transportation position, catcher with lock sets wheels in longitudinal plane of machine. EFFECT: provision of uniform harrowing, increased maneuverability. 3 cl, 7 dwg