Winch for pulling products e.g. logs, in forest, has hydraulic circuit connected to hydraulic unit of tractor, where circuit includes distributor that occupies position in which clutch cylinder and brake cylinder are inactivated

摘要

The winch (1) has a rotary drum (10) for winding/unwinding of a cable, where the drum is associated with a motor (13), and a strap-type brake (20) equipped with a spring (26) and a brake cylinder (29). A hydraulic circuit (30) connected to a hydraulic unit (4) of a tractor (2) includes a distributor (31) that occupies a first position in which a clutch cylinder (15) and the brake cylinder are inactivated, a second position in which the clutch cylinder is activated and the brake cylinder is inactivated, and a third position in which the clutch cylinder and the brake cylinder are activated.