| 摘要 |
<p>A safety rail system (1) which can be installed on a sloping roof (42) and provides a continuous rail to which a safety rail traveller (62) and associated safety line may be attached comprises one or more longitudinal base units (10) of substantially uniform cross section adapted to be fixed to the surface of a building, and one or more longitudinal rail units (30) of substantially uniform cross section adapted to allow the attachment of a safety rail traveller (62). The base units (10) and rail units (30) are provided with corresponding male and female continuous key portions (12, 36) to permit a base unit and a rail unit to interlockingly engage by longitudinal sliding action.</p> |
