Patent ID: 8091953

Claim:
A vehicle ceiling structure having a long reinforcing rib attached to a ceiling member of the vehicle, the rib being made of a resin having a different coefficient of thermal expansion from that of the ceiling member, wherein the reinforcing rib comprises a plurality of segmented ribs that are divided by a gap in a longitudinal direction; one of the segmented ribs adjacent to an other segmented rib is formed, in upper and lower parts of an end portion thereof, with an upper protrusion and a lower protrusion protruding in the longitudinal direction; the one segmented rib and the other segmented rib fit with each other such that a lower face of the upper protrusion and an upper face of the lower protrusion of the one segmented rib respectively face an end portion of the other segmented rib in an up and down direction; and the lower protrusion of the one segmented rib has its tip positioned to protrude more in the longitudinal direction than that of the upper protrusion.