| 摘要 |
A lifting carriage having a rectangular frame provided with four corner posts for guiding an elevating platform mounted between these posts. Each post has a toothed rack on which a toothed gear mounted on the platform is engaged for raising the platform. The toothed gears are actuated by a motor mounted on the platform through a power chain. The carriage is mounted on wheels which can be actuated by a motor for horizontally moving the carriage. The carriage is also provided with spinning wheels on its side, whereby, the carriage, when tilted on its side, can be moved sideways. The elevating platform is provided with guiding wheels adapted to abut against the corner posts for allowing a smooth sliding of the elevating platform.
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