GUIDE DEVICE FOR POSTS MOVING INSIDE EACH OTHER, TELESCOPING BOOM AND METHOD OF GUIDING SAID POSTS

摘要

FIELD: transport.;SUBSTANCE: invention relates to guiding device for post arranged to coaxially move in the other post, and to telescoping boom. Said guiding device arranged on the first post interacts with contact zone made on the second post outer surface, second post moving in the first post. Proposed device comprises guide elements that comprises roller arranged at turn about the axis intersecting axes of posts at right angle, slipper with support surface, appliances designed to move roller axis perpendicular to the post contact zone depending upon pressure the post applies to the roller. Thus, the zone wherein element thrusts against the post is formed by either roller, or by roller and slipper.;EFFECT: reliable design.;22 cl, 10 dwg