METHOD OF GRIPPING OF ARTICLES AND TRACTOR MOUNTING LINKAGE FOR IMPLEMENTING THE METHOD (VERSIONS) Russian patent published in 2005 - IPC

FIELD: material handling facilities.

SUBSTANCE: proposed tractor linkage designed for gripping at least one article is furnished with frame with at least one section for fastening to tractor, pair of gripping members, each provided with gripping edge, drive and synchronous opening-closing unit of gripping members and control devices for connecting tractor control panel with gripping members drive unit. Gripping members are installed on frame for turning in one plane with mating of edges at closing of gripping members. Drive and synchronous opening-closing unit is connected by one end to frame, and by other end, to corresponding gripping member. According to second design version, tractor linkage for gripping at least one article is furnished with metal frame provided with fastening plates at each side aligned with section of tractor boom fastening with possibility of tilting of frame to ground by means of turning regulator on tractor control panel, pair of gripping members, each provided with gripping edge, pair of hydraulic drives, each provided with hydraulic cylinder unit, first connector of pipelines secured on frame and provided at one side with joint to connect external pressure source, and at other side, hydraulic connection with farthest ends of both hydraulic cylinders relative to frame, and second pipeline connector secured on frame and provided with joint to connect external pressure source, and at other side, hydraulic connection with ends of both hydraulic cylinders nearest relative to frame. Gripping members are hinge mounted on frame being extended in direction square to surface of frame, with possibility of turning in one plane to edge closing position. Each drive is connected by first end to frame and by second end, to one of gripping members with connection of each gripping member with one of hydraulic drives. Method of gripping of articles comes to the following: first linkage is fastened on tractor, said linkage includes frame and gripping members with hydraulic drive provided with inner edge and installed on frame only by means of hinge support and hydraulic drives for turning in one plane to position of closing of inner edges, and then tractor is placed in position in which open gripping members are arranged around article, then gripping members are closed around article and article is moved by tractor to new place, after which gripping members are opened. Invention provides working implement for tractor which can be easily removed and installed using several points of attachment which can perform great number of operations of gripping and transportation, for instance, lifting of heavy objects, pulling trees and poles out of ground and their transportation.

EFFECT: ease of operation, accuracy and flexibility.

23 cl, 6 dwg