FIELD: furniture.
SUBSTANCE: invention relates to furniture industry, in particular to production of structural elements of chairs and stools; special appliances for chairs, stools, car seats. Orthopaedic U-shaped lining for sitting with two ends and a crossbeam, having a cover with a process hole and a combined filler, including at least one layer of foamed polyurethane and an air chamber equipped with a pear-shaped pump. Layer of foamed polyurethane is the bottom layer, and the air chamber is the upper layer.
EFFECT: invention is aimed at enabling adjustment of seat height and stiffness.
12 cl, 4 dwg
