Patent ID: 8430454

Claim:
An articulation system, comprising: first and second articulations, each comprising two strength members that are able to pivot with respect to one another and a locking mechanism which has at least one control member that is able to move between a locking position and an unlocking position, the locking mechanism locking the two strength members when the control member is in the locking position and for unlocking the two strength members when the control member is in the unlocking position, the control members of the two articulations each being elastically urged towards the locking position, and a maneuvering member that is able to move between a rest position and an actuating position and is suitable for moving the control members of the first and second articulations from the locking position into the unlocking position when said maneuvering member is moved in an actuating direction from the rest position to the actuating position, wherein the control members of the first and second articulations are able to move independently of one another between the locking and unlocking positions, and wherein the maneuvering member is suitable for pressing against first and second driving members operatively associated with and connected to the respective control members of the first and second articulations, only when said maneuvering member is moved in the actuating direction, said first and second driving members being suitable for then driving each corresponding control member from the locking position into the unlocking position, the control member of the first articulation being independent of the second driving member and the control member of the second articulation being independent of the first driving member; wherein the control members of the first and second articulations are pivotally mounted about one and the same rotational axis, said control members of the two articulations being positioned so as to pivot in one and the same angular unlocking direction from the locking position as far as the unlocking position, and the system further has a connecting bar rotationally connected to the control member of the first articulation, the connecting bar being able to rotate independently of the control member of the second articulation and being integral with the first driving member, the control member of the second articulation being rotationally connected to the second driving member.