| 摘要 |
PROBLEM TO BE SOLVED: To cope with both a decrease in the rotary operation force of an air passageway opening/closing door and securing sealing properties by eliminating the gap between a door and a case in the sealing structure between a part around the pivot of an air passageway opening/closing door and a case. SOLUTION: A sealing structure of the air passageway opening/closing door comprises the case 10 for forming an air passageway 10a; and an air passageway opening/closing door 20 consisting of a pivot 21 that is rotatably supported by the case 10 and a door body section 22 for opening/closing an air passageway by rotating in one piece with the pivot 21. In the air passageway opening/closing door 20, an elastic member 24 that is cylindrically extended in the axial direction of the pivot 21 and can be deformed in an axial direction is adhered and fixed. A seal member 25 made of resin formed in a ring shape is provided between a cylindrical end section 24a of the elastic member 24 and the case 10. The seal member 25 is pressed against the case 10 by the elastic deformation force of the elastic member 24, thus sealing the area between the part around the pivot 21 and the case 10. COPYRIGHT: (C)2004,JPO&NCIPI
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