| 摘要 |
A temporary closure barrier 1, for a lift door opening of a building under construction, comprises a rectangular frame 2 having a side portion 3 that is capable of being extended, in stages, to allow the frame to be of variable width. The frame may include a clamp rail 18 having an adjustable mounting device, preferably having a screw threaded adjuster, arranged such that it will enable small variations in the effective width of the barrier to be made. Preferably the barrier includes a door frame and door 6 which has a lock mechanism 14. The barrier may support one or more infill panels 23 which are adjustable to close off any open areas. The barrier may also include a hazard shield 16 separate from the door mounted on the frame such that it will tend to move automatically to a closed position. |
