| 摘要 |
PCT No. PCT/IT90/00039 Sec. 371 Date Jul. 30, 1992 Sec. 102(e) Date Jul. 30, 1992 PCT Filed Apr. 9, 1990 PCT Pub. No. WO91/13572 PCT Pub. Date Sep. 19, 1991.Cushion (50) for anatomical support, especially of the lumbar and cervical regions, for mounting onto backs (42) of seats (41) generally, includes a curved elastic plate (51) having longitudinal ends connected by a posterior brace formed by a pair (55, 60) of rods threaded in opposite directions that screw into an intermediately placed cylindrical scroll (63) so that it is possible to vary the convexity of the plate (51) and therefore the extent to which the cushion projects from the seat back (42) by rotation of the scroll (63) in one direction or the other. It is also possible to adjust the height of the cushion, when placed inside the seat back (42), by a special internal mechanism (51, 71, 72, 74) operated by a knob (45) placed on the outside. |
