| 摘要 |
PROBLEM TO BE SOLVED: To improve airtightness between a support means after extension-installation and a surface for abutting to the support means when the support means such as a center pillar is a movable type. SOLUTION: Ends of guide rails 17A and 18A are formed as link structures rotatably coupled with each other with shafts 84A and 94A as the center. The guide rails 17A and 18A are housed in a building upper part in a state of being folded by a link member composed of the shafts 84A and 94A. When a curtain 14A descends, the guide rails 17A and 18A are also extended by interlocking with the descent, and constitute a rail. The guide rails 17A and 18A are formed as structures passable without interfering with nipping by nipping the curtail 14A from the front and rear. The airtightness is improved by arranging press-fitting members 33A and 33B at lower ends of the guide rails 17A and 18A for blocking a clearance between the guide rails 17A and 18A and a floor surface 69. COPYRIGHT: (C)2004,JPO
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