| 摘要 |
A work station is disclosed comprising: an envelope (20) having a top section (30), a bottom section (31), first (32) and second (33) end sections, and first (34) and second (35) side sections to shelter workers and to contain debris, each section being suspended between a supply means and a take-up means on a plurality of support means (63) about a structure that are mounted in a first motive means (21) on the structure to permit the envelope to be repositioned from time to time, scaffolding means (80-81) suspended by cables on a second motive means to permit a vertical degree of freedom and on a third motive means on a transverse beam (84) for a lateral degree of freedom, each beam being mounted on a fourth motive means on the support means to permit a longitudinal degree of freedom of movement.
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