| 摘要 |
<p>A quadrail ergonomic apparatus includes two or more pathways (11, 13) designed to permit movement in two or more directions mounted to a static object above a surface. One or more carriages (20, 22, 24, 26, 28) designed to move in two or more directions are disposed within the pathways (11, 13). Each carriage (20, 22, 24, 26, 28) is suspended above the surface from the pathways (11, 13) and capable of maintaining a workload (34, 54, 84, 104, 134) in place and permitting movement of the workload in at least four directions.</p> |
