Patent ID: 7591090

Claim:
A loader-type civil engineering machine having a chassis and working equipment, comprising: at least one arm that can move relative to the chassis, an arm cylinder, of which one end is connected to the arm and the other to the chassis, and capable of rotating the arm relative to the chassis, a working implement articulated relative to the arm, a main kinematic linkage forming, with a portion of the working implement and a portion of the arm, a main deformable mechanism, an implement cylinder capable of being controlled to cause deformation of the main deformable mechanism in order to ensure inclination of the working implement relative to the arm, a hydraulic control circuit allowing the implement cylinder to be supplied by means of a directional flow valve, a secondary kinematic linage forming, with a portion of the arm situated in the zone of articulation of the arm on the chassis, a deformable telltale mechanism whose deformation is a direct function of the inclination of the working implement relative to the chassis, an angular sensor capable of measuring an angle representative of the deformation of the telltale mechanism relative to the chassis, and a command and control device connected to said angular sensor and capable of controlling the supply of the implement cylinder and/or of the arm cylinder.