| 摘要 |
PROBLEM TO BE SOLVED: To provide an overhead door which prevents the lowermost panel from being damaged by allowing it to curve when an impact is added.SOLUTION: In an overhead door, a shutter curtain 7 is formed by bendably connecting the required number of panels 8, both ends of the panels 8 are provided with guide rails 4, 5, 6 which guide opening and closing of the shutter curtain 7, and the shutter curtain 7 goes up and down along the guide rails 4, 5, 6. The lowermost panel of the shutter curtain 7 is a flexible panel 14 having flexibility, and the flexible panel 14 is connected to a panel adjacent to the upper part of the flexible panel 14 by both end hinges 9 installed on both ends of the flexible panel 14 and a separatable and connectable crush type intermediate hinge 15 installed on a central part thereof. |
