Abstract: Structure comprising an assembly of interfitting members including a plate member having a border section on at least one part of its periphery, fitted over a complementary resiliently deformable relief section borne by a second member by temporary elastic warping of at least one of the members. The relief section projects from a ridge engaged by the edge of the border section and has a height, in unstressed condition, which is greater than the distance separating the second member and the plate member in the assembled structure, so that the relief section bears against the plate member in the assembled structure.