| 摘要 |
The elastically deformable support strips (4) which are lower than the spring strips (3) each have an elastically deformable centre area (8) between the longitudinal supports (1,2). This centre area is of stronger elasticity than two end areas (9,10) of the support strip directed from the longitudinal supports to the spring strip ends (3a). The support strip (4) is supported on the two longitudinal supports and held on same by connecting elements (11). Swivel movement of the support strip on each support point is possible in the transverse direction to the corresponding longitudinal support and the swivel movements cause the two side edge areas of a support module (7) when stressed at any point to move down from the supporting side. |
