| 摘要 |
PCT No. PCT/EP97/04580 Sec. 371 Date May 11, 1999 Sec. 102(e) Date May 11, 1999 PCT Filed Aug. 20, 1997 PCT Pub. No. WO98/07590 PCT Pub. Date Feb. 26, 1998A seat arrangement comprises a platform element in the form of a wire grid comprising side rails (1) between which extend a plurality of supporting wires (3) having angled portions (3A) such that the platform element is transversely extensible under load. The side rails (1) are linked to a seat frame (5) by wire links (6) that are subject to a seat frame that are subject to only limited extension so that the rails are (1) are held thereby against substantial displacement from the plane of the frame (5). The rails (1) are also linked to the frame (5) by way of Bowden cables (9) that are anchored to the frame forwardly of the side rails (1) and that can be contracted to draw portions of the side rails (1) forwards between adjacent wire links (6), thus varying the contour of the platform element to provide adjustable lumbar support. |
