VEHICLE CEILING STRUCTURE

In a vehicle ceiling structure 1, a long reinforcing rib 3 is attached to a ceiling member 2 of the vehicle, the rib being made of a resin having a different coefficient of thermal expansion from that of the ceiling member 2. The reinforcing rib 3 comprises a plurality of segmented ribs that are divided by a gap 30 in a longitudinal direction. One segmented rib 32 of adjoining segmented ribs 31 and 32 is formed, in upper and lower parts of a front end portion 321a thereof, with an upper protrusion 322a and a lower protrusion 323a protruding in the longitudinal direction. One segmented rib 32 and the other segmented rib 31 fit with each other such that a lower face 324a of the upper protrusion 322a and an upper face 325a of the lower protrusion 323a of the one segmented rib 32 respectively face a rear end portion 311b of the other segmented rib 31 in an up and down direction.