초록 ▼

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 and

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 and screwed 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. Furthermore, an electric ratio motor can be provided to drive the cylindrical scroll rotatably. A three position switch can be connected between a source of power and the ratio motor to drive the motor in either of two rotation directions or not at all.

대표청구항 ▼

Adjustable cushion for anatomical support mountable on a back of a seat, said adjustable cushion comprising: a curved elastic plate having longitudinal ends, said longitudinal ends of said plate being curved backwards so as to form an upper channel and a lower channel and said elastic plate being mo

Adjustable cushion for anatomical support mountable on a back of a seat, said adjustable cushion comprising: a curved elastic plate having longitudinal ends, said longitudinal ends of said plate being curved backwards so as to form an upper channel and a lower channel and said elastic plate being mountable on said back of said seat projecting convexly from said back; means for adjusting a convexity of said curved elastic plate including a posterior vertical central brace consisting of a pair of aligned threaded rods having posterior ends and threaded in opposite directions and a cylindrical scroll means receiving said aligned threaded rods so that said posterior ends of said threaded rods are securable in said upper and lower channels and said convexity of said curved elastic plate can be varied by rotating said scroll means; and an electric ratio motor connected to said scroll means to drive said scroll means rotatably.