| 摘要 |
PROBLEM TO BE SOLVED: To provide a large door structure which can prevent torsion between door bodies adjacent to each other and shaft deviation of an upper support means and a lower traveling means from each other, and exhibits increased wind pressure resistance at a support and traveling portion. SOLUTION: The large door structure is formed of the plurality of door bodies 1 standing abreast in a rank, and the support and traveling portions 2 arranged between the door bodies 1, for movably supporting the door bodies 1. Each support and traveling portion 2 has the upper support means 3 for movably supporting the door bodies 1 along an upper guide rail which is arranged in a storage building, the lower traveling means 4 for traveling along a lower guide rail arranged on the ground, while supporting the door bodies 1, and an intermediate door body 5 connecting between the upper support means 3 and the lower traveling means 4 in one body, and filling a gap between the door bodies 1 adjacent to each other. COPYRIGHT: (C)2005,JPO&NCIPI
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