Abstract: Apparatus for improving the rigidity of a vehicle structure, and particularly a vehicle having a retractable roof. The apparatus includes an electromagnet carried by either an edge of a door of the vehicle that swings outwardly when the door is open, or by an opposing edge of bodywork of the vehicle which faces the edge of the door when the door is closed. The electromagnet serves as a first element which, when the door is closed, is positioned opposite a second element made of a magnetic material. One of the elements is able to move toward the other element when the electromagnet is provided with an electric current. One of the elements is provided with a protuberance formed in the shape of a truncated cone, and the other element is provided with an axially-aligned recess which has a size and shape to receive the protuberance therein.

Abstract: The invention concerns roof elements (1, 2) mobile between a first position wherein they cover the vehicle passenger compartment, a second position wherein the front roof element (1) is located above the rear roof element (2), a third position wherein the two roof elements (1, 2) are stowed in the vehicle rear deck. The mechanism (3) for lifting the front roof element (1) comprises two intersecting levers (8, 9) articulated at their intersection (10) one of the ends of said levers (8, 9) being articulated to a front telescopic element (5), the other end of said levers (8, 9) being linked to means for displacing each of said ends in opposite directions oriented in a direction parallel to the front telescopic element (5).

Abstract: The invention concerns roof elements (1, 2) mobile between a first position wherein they cover the vehicle passenger compartment, a second position wherein the front roof element (1) is located above the rear roof element (2), a third position wherein the two roof elements (1, 2) are stowed in the vehicle rear deck. The mechanism (3) for lifting the front roof element 1) comprises the two intersecting levers (8, 9) articulated at their intersection (10) one of the ends of said levers (8, 9) being articulated to a front telescopic element (5), the other end of said levers (8, 9) being linked to means for displacing each of said ends in opposite directions oriented in a direction parallel to the front telescopic element (5).

Abstract: The invention concerns a device comprising between the rear edge (1a) of a vehicle door and the edge (12b) adjacent to said vehicle body at least a first element (2) including an electromagnet (2a) integral with one (1a) of said edges and opposite said electromagnet at least a second element (7) including a magnetic material (7a) integral with the other edge (12b), one of said first (2) and second (7) elements being mobile towards the other element when the electromagnet (2a) is powered with an electric current, the ends opposite said elements (2, 7) being shaped to be mutually nested into each other.