A furniture seating support system includes furniture support structure
and a frame having tubular elements connected to the support structure.
First and second tubular elements are positioned parallel to each other.
A tubular cross member is connected to the frame between the first and
second elements. A pair of pivoting joints each connect first element
ends to the support structure, permitting first element rotation.
Elastically flexible support straps with elastomeric elements are
connected to the first and second elements to support an occupant. The
cross member position is adjustable to vary strap stiffness. A furniture
member cavity is accessible by raising the first element.