| 摘要 |
Safety apparatus 11 for use in building or renovation operations comprises a member 13 which can extend in length, at one or both ends 15A, 15B. It is fitted across an aperture to stop a worker falling inwards from outside the building or outwards from inside the building. The member may be fitted horizontally or vertically across the aperture or a plurality of members may be used for large apertures. Preferably, both ends 15A, 15B are extendable via left- and right-hand threads 16A, 16B respectively so that, by rotating the central section, both ends are advanced until the ends contact the opposite sides of the aperture. |
