| 摘要 |
A lumbar support includes a flexible lumbar piece mechanically coupled to a back panel, and a rotatable adjusting member, preferably a dial accessible by the wear, that adjusts the extent the lumbar piece bows away from the back panel. A series of detents can be used to provide discrete "stops". Lumbar pieces can comprise any suitable material, including for example metal or plastic, and are preferably removable from the back panel.
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