Device for slowing and blocking one vehicle element relative to another

A blocking device for a vehicle, comprising:

• a first element;
• a second element, wherein the second element is moveable relative to the first element;
• a blocking pin movable between a first end part and a second end part relative to the first element, the blocking pin being movable between an unblocked position and a blocked position, wherein in the blocked position, said blocking pin is located at the second end part;
• an actuating element secured to the second element, separate from the blocking pin, and arranged to move into contact with the blocking pin between the unblocked position and the blocked position during at least part of the movement of the second element relative to the first element and the actuating element is configured to be spaced from the blocking pin during at least part of the movement of the second element relative to the first element when the blocking pin is in the unblocked position;
• and
• a stressing element that fastens the blocking pin to the first element, said stressing element being moved with the blocking pin by the actuating element and being arranged to exert a force stressing the blocking pin toward its unblocked position when the blocking pin is between the unblocked position and an intermediate position of the blocking pin and to exert a force stressing the blocking pin toward its blocked position when the blocking pin is between the intermediate position and the blocked position of the blocking pin so that movement of the actuating element is required to move the second element relative to the first element when the blocking pin is in the blocked position.