Vehicle ceiling structure

Details Vehicle ceiling structure Vehicle ceiling structure

B - Operations, Transporting

60

R

B60R 13/02 (2006.01)

Patent

CA 2731540

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.

Une structure de plafond de véhicule (1) a une longue nervure de renfort (3) qui est montée sur un élément de plafond de véhicule (2) et est composée dune résine ayant un coefficient de dilatation thermique différent de celui de lélément de plafond (2). La nervure de renfort (3) est composée de nervures fendues, disposées dans le sens longitudinal avec des intervalles (30) entre elles. Toutes les deux nervures fendues adjacentes (31, 32), une projection supérieure (322a) et une projection inférieure (323a), qui se projettent dans le sens longitudinal, sont formées sur les parties supérieure et inférieure dune extrémité avant (321a) dune nervure fendue (32). Ladite nervure fendue (32) et lautre nervure fendue (31) sont fixées lune à lautre, de sorte quune surface inférieure (324a) et une surface supérieure (325a) de la projection supérieure (322a) de la nervure fendue (32) soient opposées dans le sens vertical à une extrémité arrière (311b) de lautre nervure fendue (31).

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