Motor-driven control for a flush door handle and method for operating it

A door handle mechanism for a door, the door handle mechanism comprising:

• a handle movable between a rest position in which the handle is flush with the door and a working position in which the handle projects with respect to the door;
• and
• a control mechanism comprising:
• a first lever mounted so as to pivot about a first axis borne by the handle;
• a second lever mounted so as to pivot about a second axis borne by the handle parallel to the first axis and away from the first axis according to a longitudinal direction of the handle;
• a first tie-rod having ends respectively linked to the first lever and to the second lever according to respective hinged connections at least one of which has a first oblong aperture parallel to a longitudinal extension of the first tie-rod;
• a means for elastically biasing the handle towards the rest position;
• a cam adapted to rotate about a cam axis in order to translate the handle between the rest position and the working position using a motor-driven actuator;
• and
• a rod linking the cam to the first tie-rod and including a pin extending perpendicularly with respect to a plane of the rod;
• wherein the first lever, the second lever, the first tie-rod and the handle form a movable assembly whose movement causes a translational displacement of the handle,
• wherein the first tie-rod further comprises a second oblong aperture parallel to the first oblong aperture and through which the pin of the rod extends in order to make the handle slide from the working position to the rest position in a motor-driven way by an over-travel of the cam when the means for elastically biasing the handle are not enough.