| 摘要 |
<p>One rolling unit (14a) associated with each door section (11) is arranged between the rolling unit pair (15a and 15b) associated with the adjacent door section (12). The distance d between each given rolling unit pair (15a and 15b) associated with the adjacent door section (12) is set to be greater than the width w of the rolling unit associated with the adjacent door section (11), which is arranged between the aforementioned given rolling unit pair, plus the relative stroke s of the adjacent door section (11). One rolling unit (15b) associated with each door section (12) rolls on common guide rail (13) between the rolling unit pair (14a and 14b) associated with the other door section (11).</p> |
