| 摘要 |
PCT No. PCT/EP94/01963 Sec. 371 Date Dec. 12, 1995 Sec. 102(e) Date Dec. 12, 1995 PCT Filed Jun. 16, 1994 PCT Pub. No. WO95/00053 PCT Pub. Date Jan. 5, 1995An apparatus for adjusting the arching of a resiliently flexible support element for supporting the pelvic and/or lumbular vertebrae in a back rest of a seat including an arching device comprising a spring and an operating device. The spring is included in the force transmission tract for adjusting the arching. Preferably a spring is fitted between one end of the support element and the force transmission member of the arching means and/or a spring is fitted to the free end of the force transmission member of the arching device behind the operating device.
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