Patent ID: 6896072

Claim:
A drilling vehicle comprising: a chassis movable over ground; a tool arm; a drilling tool operatively mounted to said tool arm and defining a drilling extremity; a tool arm actuator assembly attaching said tool arm to said chassis and comprising: a first tool arm actuator allowing rotational displacement of said tool arm about a first axis; a second tool arm actuator allowing translational displacement of said tool arm along a second axis between two limit positions; a third tool arm actuator allowing translational displacement of said tool arm along a third axis between two limit positions; a fourth tool arm actuator allowing rotational displacement of said tool arm about a fourth axis; and a fifth tool arm actuator allowing pivotal displacement of said tool arm about a fifth axis; and selectively controlled power means controlling said first, second, third, fourth and fifth tool arm actuators; wherein the position and orientation of said drilling tool drilling extremity is controlled with said first, second, third, fourth and fifth tool arm actuators acting on said tool arm.