| 摘要 |
<p>A lift comprises an outer framework (1) with a planar top surface (2) forming a walkway and an inner car (5) within the outer framework, the inner car (5) having a roof (7) and a floor (6) and being movable relative to the outer framework (1) from a position in which the roof (7) is spaced below the top surface (2) to a position in which the roof (7) engages the top surface (2) so that upon further upward movement, the inner car (5) raises the outer framework until the floor (6) is in a position flush with level P previously occupied by upper surface (2) of framework (1). <IMAGE></p> |
