| 摘要 |
An overhead door with gate leaves 2, which have pegs 3, 4 on each side edge, which pegs 3 and 4 run in separate tracks 5 in an interacting doorframe door and where the tilted gate leaf 2 is lifted using chain 6 and weights 11. The pegs 3 and 4 are located in the middle between the upper and lower edge of the gate blades 2 which allows the gate to be tilted either in one or another direction. <IMAGE> |
