Patent ID: 7487564

Claim:
A furniture item, comprising: a support having a stationary, generally planar shelf extending along a transverse direction, and a generally planar platform hinged to the shelf for movement about a hinge axis extending along the transverse direction; a movable mattress mounted on the support for movement between a storage position and a body-supporting use position, the mattress including a spring assembly having an upper wire grid, a lower wire grid, and a system of springs pivotably connected to the grids for movement from a compact position in which the grids are adjacent one another when the mattress is in the storage position, along an opening direction, to an upright position in which the grids are resiliently held and spaced apart by the springs when the mattress is in the use position; and a support structure remote from the springs and operatively connected between the spring assembly and the support, for resisting movement of the springs along the opening direction past the upright position, and for maintaining the springs in the upright position when the mattress is in the use position, the support structure including a lower support element fixed to, and extending along, the shelf along the transverse direction and pivotably connected to the lower wire grid, and an upper support element located above, and extending in mutual parallelism with, the lower support element along the transverse direction and pivotably connected to the upper wire grid.