| 摘要 |
PCT No. PCT/SE97/01352 Sec. 371 Date Sep. 24, 1999 Sec. 102(e) Date Sep. 24, 1999 PCT Filed Aug. 15, 1997 PCT Pub. No. WO98/07589 PCT Pub. Date Feb. 26, 1998A back support mechanism for supporting the back of a seat in a motor vehicle, wherein the seat back support mechanism includes at least one first component adapted to be connected to the squab of the seat or to a frame supporting the squab of the seat, and at least one further component adapted to be connected to the back of the seat. A connection between the components includes a linkage to permit the further component to move with first and second pivotal actions relative to the first component. The linkage includes two pivot link elements which are respectively mounted to effect a pivotal movement relative to the at least one first component. The pivot link elements directly or indirectly support the further component. The pivot link elements permit the further component to effect an initial rearward pivotal movement which constitutes the first pivotal action before effecting the second pivotal action. The connection includes a deformable element which resists the second pivotal action. The deformable element is adapted to deform to permit the second pivotal action when subjected to a force in excess of a predetermined threshold.
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