| 摘要 |
PROBLEM TO BE SOLVED: To restrict generation of abnormal noise caused by self-excited vibration of film members having flexibility in an air passage opening and closing device using slide doors comprising the film members. SOLUTION: This air passage opening and closing device comprises a case 11 forming opening parts 15b, 16a, and 19-21 in an air passage, and slide doors 14 and 22 disposed to be slidable on the upwind side of the opening parts 15b, 16a, 19-21 in the case 11. The slide doors 14 and 22 have the film members 141 and 221 having flexibility. As the film members 141 and 221 move, the opening parts 15b, 16a, and 19-21 are opened and closed. On the opening parts 15b, 16a, and 19-21, a perpendicular grid 42 perpendicular to a moving direction of the film members 141 and 221 is provided. COPYRIGHT: (C)2004,JPO
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