| 摘要 |
PCT No. PCT/EP93/00760 Sec. 371 Date Feb. 24, 1994 Sec. 102(e) Date Feb. 24, 1994 PCT Filed Mar. 29, 1993 PCT Pub. No. WO93/19646 PCT Pub. Date Oct. 14, 1993An active dynamic seat has a base, an intermediate part linked to the base and a seating part linked to the intermediate part. The seating part has on its lower side a shell-shaped, downwardly convex seating bowl. The seating part is supported in the vertical direction on a bearing arranged on a head part of the intermediate part that engages the shell-shaped lower side of the seating bowl, and is mounted so as to tilt in all other directions.
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