Surface spring element for supporting, e.g. backrest cushion of seat, has length compensation section that is formed in supporting element interconnected with side sections of bearing surface to compensate spring element surface load

摘要

The spring element (1) has several supporting elements (31) that are partially formed on bearing surface (3) arranged above foot device (2). Several foot struts (21) are formed on foot device. Two side sections (4,5) are formed on bearing surface. The ends (7-10) of each supporting element and each foot strut are interconnected with the side sections. The supporting elements are linearly passed through the side sections. A length compensation section (6) is formed in the supporting element for compensating the load of spring element surface which changes in length.