| 摘要 |
<p>A futon (20) has flexible, foldable, separately tufted covering layers (38) zippered to enclose a pair of pneumatic layers (54). The pneumatic layers (54) are separately inflatable, co-planar, and foldable along one set of parallel axes (70), and also foldable at a perpendicular axis (72) along the line between the pneumatic layers (54).</p> |
