| 摘要 |
The invention relates to an adaptive seat and backrest cushion, divided into a seat cushion (1) and a backrest cushion (2) of essentially the same construction. A number of webs (6, 7) are introduced between an upper skin ( 4) and a lower skin (5) of an airtight shell (3) by welding or gluing. The firs t webs (6) are of simple construction, the second webs (7) are of double construction each with a cavity (10) between the webs (7). The space within the shell (3) is filled with compressed air at a pressure p1, the cavities (10) can be pressurised as required with compressed air at a pressure of p2, where p2 > p1. The thickness as well as the softness of the seat or backr est cushion (1, 2) can thus be altered. As a result of the number and arrangemen t of the doubled webs (7) and the possible combination thereof in groups the cushions (1, 2) can be matched to the instantaneous comfort requirements by selective pressurisation with the compressed air p2 by the seated person.</S DOAB> |
