| 摘要 |
An apparatus has a back section, a center section pivotally connected to the back section so that the back section is movable between a first position coplanar with the center section and a second position approximately perpendicular upwardly relative to the center section, a leg section pivotally connected to the center section so that the leg section is movable between a straight position coplanar with the center section and a bent position approximately perpendicular downwardly relative to the center section, a cushion slidably positioned on the center section so that the cushion is movable between a backward position and a forward position, and a sliding mechanism for sliding the cushion between the backward position and the forward position.
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