| 摘要 |
A transport apparatus having a loading bridge, is movable by hand for transporting loads over stairs. There are two front rollers (3), which are either extendable or variable in their angular position, and two rear rollers (7), which are secured to downwardly extending arms (6). The loading bridge (1) takes up a rearwardly tilted position when the transport apparatus rests with the rollers (3, 7) on a horizontal surface. The spacing between the front and rear rollers (3, 7) and the roller diameters are selected so that, when climbing a stair, the front rollers (3) rest on an upper tread while the rear rollers (7) simultaneously rest on a lower tread. When the apparatus is not in use, it may be folded to take up but a small space by folding the tiltable hand levers (14) inwardly and by tilting the arms (6) upwardly.
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