Abstract: A rear boot (3) hood (4), for a convertible vehicle (1) swivels in relation to the bodyshell, via a first assembly element (13) capable of engaging in a detachable manner into a second assembly element (14) linked to the bodyshell. First and second runner surfaces (13a, 14a, 16c and 17a) work together at the end of the swivel movement of the hood. Means for locking/unlocking comprising first and second means for engaging (16 and 17) lock the hood in relation to the bodyshell. According to the invention, the first and second means for engaging (16 and 17) respectively have between them first and second contact surfaces with co-operative shapes, so that for at least the main part of its stroke, said first means for engaging (16) applies a substantially constant pressure on the corresponding second means for engaging (17).