| 摘要 |
A guide groove (53) is provided to each of the two door-widthwise sides of a plate-shaped section (61) of a door (60), and the radius of curvature of the unitary state of the plate-shaped section (61) is set larger than the radius of curvature of the guide groove (53), whereby the door (60) is elastically deformed and the door-widthwise ends of the plate-shaped section (61) are supported at three contact points (P1-P3). A rib (63) extending from one door-widthwise end to the other end is provided to the plate-shaped section (61), whereby force from the door-widthwise ends of the plate-shaped section (61) is transmitted by the rib (63) to the door-widthwise middle part of the plate-shaped section (61), and deformation in a direction that would cause the middle vicinity of the plate-shaped section (61) to move away from a seal surface of an air-conditioning case (11) is prevented. Therefore, the middle vicinity of the plate-shaped section (61) is pushed into the seal surface of the air-conditioning case (11). |
