| 摘要 |
PURPOSE:To provide a unitized portable passageway in the form of a landing pier, which can be easily installed by the effective use of a space in a construction site, freely extended as a construction site work passage, and connected together so as to be usable as a passage or scaffold continuing in any direction. CONSTITUTION:A passageway, erected or suspended between the horizontal supports of beams and the like to be assembled and enabling workers to walk or perform various work thereon, comprises a main passageway 10 and an auxiliary passageway 20 being held along one or both ends of the main passageway while its length is freely adjusted. The main and auxiliary passageways comprise a pair of frame bodies and scaffolding boards 12, 22 collectively provided between the insides of the frame bodies, and collapsible handrails are attached to the frame bodies of the main and auxiliary passageways. Connecting fittings 30 are mounted on an end portion of the frame body of the auxiliary passageway, and the horizontal supports are provided with a holddown device 60 for securing the auxiliary passageway in place. |
