| 摘要 |
The invention provides a foldable platform device comprising a platform having an end for linear guidance by a guideway between an out-of-use position of the platform and an in-use position of the platform, a guideway for so guiding said platform end, a support member for the platform which support member will extend between the platform and a platform support and will move with the platform between the platform out-of-use and in-use positions, and biasing means operatively connected to the support member for having a controlling influence over movement of the platform between its out-of-use and in-use positions.
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