Patent ID: 8757251

Claim:
Multi-function machine for drilling, boring, driving and lifting comprising a tracked lorry which supports a rotating turret motorized and provided with a driving cab; a lattice tower arm is directly hinged to a frame of the turret movable between a substantially raised position and a tilted position on a front for angles between a nearly vertical direction and a nearly horizontal direction for use in at least a first configuration as lifting arm; the arm comprising a base and a lower part; a free upper end of the arm has a head having a system of pulleys or transmissions for at least a maneuvering rope; the arm rotating with respect to the turret to acquire a second configuration of mounting and transport wherein a longitudinal axis of the arm is substantially horizontally arranged and turned over toward the front; means for bringing the arm between said first to said second configuration and vice-versa; wherein the arm can acquire a third operating configuration wherein the longitudinal axis of the arm is substantially vertically arranged; wherein in said third configuration the arm comprises guiding elements integral with the arm for digging and drilling means sliding in a direction substantially parallel to the longitudinal axis of the arm; actuating means for maneuvering the arm at least in said third configuration; wherein in said third configuration, elements of the arm are rigidly connected and directly fixed to the turret with a system of pins on hinges to prevent movement and to keep a longitudinal axis of the base of the arm in a substantially horizontal position; wherein the arm mounts to the frame of the turret by the base of the arm on first hinge means around a first axis substantially orthogonal to the longitudinal axis of the arm, and is mounted, in correspondence with a lower part, to the base on second hinge means about a second rotation axis, substantially parallel to the first axis, adapted to permit the arm to acquire a deviation from the third configuration in which verticality of the arm is correctable; wherein the arm is constrained to the frame of the turret around said first rotation axis for acquiring said first configuration as a lifting arm for the functioning of the machine as a crane, and around said second rotation axis for acquiring said third configuration as a sliding guide for the drilling devices.