LOGGING MACHINE Russian patent published in 2000 - IPC

FIELD: forestry, in particular, clearing and sanitary felling and stocking of long, short and saw log. SUBSTANCE: logging machine has beams with base, limbering and pulling device and logging mechanism which are mounted within base. Logging mechanism has circular saw driven for rotation by hydraulic engine. Circular saw is turned by lever which is actuated by hydraulic cylinder. Limbering and pulling device has two four-link chains arranged in parallel one with the other and interconnected via pins. Lower four-link chains have pulling rollers rotated by power shaft drive of running chassis of caterpillar or wheel-type tractor. Longitudinal upper four-link chains and lower frame are provided with semicircular limbering cutters. Hydraulic manipulator is positioned on base upper part and adapted for moving butt end of tree trunk onto tree trunk receiving part of limbering and pulling device. EFFECT: wider operational capabilities and enhanced reliability in operation. 2 cl, 3 dwg