| 摘要 |
PROBLEM TO BE SOLVED: To prevent movement of a slide door composed of film members or the like from being blocked at joint surfaces of a plurality of divided passage members. SOLUTION: This device includes the slide doors 14, 22 moving on wall surfaces inside of the plurality of divided passage members 11a, 11b, 11c in the direction roughly perpendicular to the joint surface 11d of the plurality of divided passage members to open and close an air passage. When the slide doors 14, 22 are sent out toward the joint surface 11d from a condition that the slide doors 14, 22 are not positioned on the joint surface 11d a wall surface 11e of the divided passage member 11a positioning in more front side in the door sending-out direction c than the joint surface 11d is formed to have a stepδin the direction separating from door surfaces of the slide doors 14, 22 on a wall surface 11f of the divided passage members 11b, 11c in a rear side.
|
