MANIPULATOR FOR PUBLIC WORKS MACHINES AND MACHINE EQUIPPED WITH SUCH MANIPULATOR FOR ROAD WORKS

摘要

A manipulator arm is provided for public works machines comprising two beams of equal length and a pivoting cradle connected in series. The first or command beam is rotated about the forward end thereof on the chassis of a support unit, and the cradle is pivoted in response to rotation of the command beam by means of gears and chains designed and arranged such that the cradle undergoes a linear translational movement and maintains a predetermined inclination.