| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a duct component having excellent water discharging performance and capable of preventing condensed water in the duct component from being accumulated in an outer cylindrical body. <P>SOLUTION: An outer cylindrical body 3 comprises an inner cylindrical body 2, a cylindrical connection body 5, a closing body 4 and an air layer 11. The inner cylindrical body 2 has a plurality of holes 18. The outer cylindrical body 3 has an inclined surface inclined upwardly from a lowest part (a curved inner surface 2b) of an inner surface of the cylinder at an end of the cylinder connected to one cylindrical connection body (a front cylindrical connection body 28). At a connection part of the outer cylindrical body to one cylindrical connection body, the lowest part of the inner surface of the outer cylindrical body is formed not to be located below the lowest part of an inner surface 73 of one cylindrical connection body. When the outer cylindrical body is installed in an inclined manner so that one cylindrical connection body is located below the other cylindrical connection body, a water flow passage 75 for allowing water to flow down from the inclined surface of the outer cylindrical body to the inner surface of one cylindrical connection body is formed. <P>COPYRIGHT: (C)2008,JPO&INPIT |
