| 摘要 |
An air duct structure using roof member is provided to reinforce strength of a roof while securing a space of the roof by removing an air duct, thereby preventing inconvenience of passengers due to descent of an indoor head room. A vehicle has a head lining and a roof panel combined with the rear thereof and has a rear air conditioner installed at the rear. A square-shaped roof rail(20) with a right side open is fixed at the roof panel by welding to reinforce strength thereof and to guide cool air of the rear air conditioner to the rear of a room through an air vent, wherein the roof rail is formed of first to third partitions(21,22,23). A plurality of cool air discharge ports(24) are formed at the first partition to guide a flow of cool air generated from the rear air conditioner to the air vent.
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