| 摘要 |
<P>PROBLEM TO BE SOLVED: To properly deform a duct body when external force is applied. <P>SOLUTION: A support part 60 projecting toward a lower wall part 44 is arranged in an upper wall part 42. An insertion part 62 set in a dimension capable of inserting the support part 60, is arranged in a part opposed to the support part 60 of the lower wall part 44. An abutting member 70 deformed by abutting on the support part 60 displaced in response to deformation to the lower wall part 44 side of the upper wall part 42, is also installed in a state of facing the insertion part 62 in the lower wall part 44. When applying the external force to the support part 60 via the upper wall part 42, the abutting member 70 is deformed by abutment of the support part 60, and deformation of the upper wall part 42 is allowed. The abutting member 70 also wholly covers the insertion part 62, and prevents outside air from flowing in the duct body 40 via the insertion part 62. <P>COPYRIGHT: (C)2009,JPO&INPIT |
