MACHINE FOR CHOKERLESS SKIDDING OF TREES Russian patent published in 2012 - IPC A01G23/00 B60P3/41 

FIELD: agriculture.

SUBSTANCE: machine comprises a self-propelled chassis. On the frame of a self-propelled chassis the process equipment is mounted containing an arch mounted with an ability of its rotation about the transverse horizontal axis in the vertical longitudinal plane through the drive. At the free end of the arch a boom is pivotally mounted with the ability to rotate in the same plane as the arch, through the drive mounted in front of the arch. At the free end of the boom a pincer grab is pivotally mounted with drives of its opening-closing and rotation around the vertical axis. The boom on the arch is mounted with the ability of rotation in two planes relative to the ball bearing. The ball bearing is rigidly connected to the upper part of the arch. From below in the central part of the boom a hemisphere is made being in contact with the ball bearing. The drive of the boom swing is made in the form of two hydraulic cylinders, which longitudinal axes when observed from the front or at the rear of the machine are located at an angle to each other.

EFFECT: execution improves machine performance and extends its technological capabilities.

3 cl, 3 dwg