| 摘要 |
<p>The seat has a flexible elastic sheet (1) e.g. carpet, with a rigid material layer e.g. high resilience foam, at the level of zones corresponding to foot (4) of the seat and to a central seating surface (3). The sheet is provided with a control part for controlling the folding of sheet such that the sheet is folded along foldable lines into the seat for forming the surface and the foot when the part is activated. The part is organized for rolling back the zones in a manner perpendicular to the surface, where the seat is redeployed into the sheet when the control part ceases its effect.</p> |
