| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a connection passage which makes both side parts of a floor joint plate made invisible from the outside, can prevent a lost article from falling down from the floor joint plate, and can efficiently inhibit rainwater infiltration.SOLUTION: A connection passage is constituted of: a connection passage body 9 having a channel-shaped cross section projecting upward from both side parts; a guide rail 10 fixed to another building frame of a portion corresponding the a tip of the connection passage body; a floor joint plate 14 whose tip is supported on a portion closer to the tip of the connection passage body so as to be slidingly movable in left and right direction; a pair of cover bodies 15 projecting outward, and positioned below both side parts of the floor joint plate so as to cover both the side parts; a cover plate slidingly and movably covering the tip of the floor joint plate; a pair of covers 17 slidingly and movably covering the pair of cover bodies 15; a pair of left and right hand rails 32 which can be expanded and contracted or slidingly moved; and movable handrails 36 which slidably move integrally with the floor joint plate in front and rear directions.</p> |
