Public works machines

Claim 1

A public works machine comprising, a platform having a driver''s cabin fixed thereon and oriented in the direction of translation of the machine, operating equipment including a jib having an inner part oriented in a first vertical plane and pivotally attached to the platform at one side and rearwardly of the driver''s cabin for pivotal movement in said vertical plane and an outer part supporting an earthworking tool on its outer end and pivotally connected to the outer end of the jib inner part for horizontal swinging movement through an arc substantially greater than 90* relative to the inner part of the jib, between a first operative position extending outwardly from said inner part of the jib substantially in said first vertical plane and a second inoperative position extending rearwardly of the pivotal connection of the inner and outer jib parts in a second vertical plane substantially parallel to said first vertical plane, said pivotal connection between said jib parts lying in a plane which is immediately adjacent the front of the drivers cabin whereby movement of said outer part to said second position enables an unobstructed forward view from the drivers cabin, and means to lock the outer jib part against rotation and in alignment with the inner jib part to provide a unitary operative jib.