Human-machine interface

A human-machine interface comprising:

• a fixed frame;
• an implement rotatably movable by a user in a first direction, about a first axis, from a neutral position to a first inclined position, the neutral position being the position of the implement without any external urging of this implement;
• a return mechanism, which constantly urges the implement to its neutral position, this return mechanism comprising a magnetic assembly comprising one or more magnetic part(s) each attached to the frame,
• wherein:
• the return mechanism comprises:
• a magnetic rocker rotatably movable in the first direction, about a second axis, from a rest position, in which it holds the implement in its neutral position, to a first tilted position, in which the implement is in its first inclined position, the second axis being separate and parallel to the first axis, with one from among the magnetic assembly and the magnetic rocker comprising a group of one or more permanent magnet(s), this group of permanent magnets being capable of cooperating with the other one of this magnetic assembly and of the magnetic rocker in order to generate a magnetic return force that constantly urges the magnetic rocker to its rest position;
• a sliding connection capable of converting the rotational movement of the implement in the first direction into a rotational movement in the first direction of the rocker, with this sliding connection to this end comprising:
• a first flat spot entirely located on one side of a median plane containing the first axis;
• and
• a first slide located at least 1 mm from the first axis and capable of coming into abutment on the first flat spot in order to slide along the first flat spot when the implement moves between its neutral position and its first inclined position;
• the implement comprises one from among this first slide and the first flat spot, and the magnetic rocker comprises the other one from among this first slide and the first flat spot so that this sliding connection is capable of converting the movement of the implement to the first inclined position into a movement of the magnetic rocker to its first tilted position and of converting the movement of the magnetic rocker to its rest position into a movement of the implement to its neutral position,
• wherein:
• the frame comprises a first stop located at the site of the second axis;
• the magnetic rocker comprises a first abutment point that is movable between:
• an active position, in which it is in abutment on the first stop in order to form, by cooperation of shapes with this first stop, a first articulation, which allows the rocker to rotate about the second axis when the implement is moved between its neutral position and its first inclined position;
• and
• a remote position, in which the first abutment point is remote from the first stop;
• the group of permanent magnets or another group of one or more permanent magnet(s) is capable of generating a magnetic attraction force that holds the first abutment point in its active position as long as the magnetic rocker is moved between its neutral position and its first tilted position.