| 摘要 |
An orthopedic cushion defined at the front by a wall of fabric material and back and side walls of plastic, said walls defining an enclosure in which is a polyurethane unitary foam filler. The back side of the cushion is substantially flat and planar. The lower part of the cushion is thicker than the upper part and approximately one-third of the way from the bottom, the cushion curves upwardly and rearwardly to a place where it extends upwardly and substantially parallel to the adjacent back wall. The front and back walls above the thickest part of the cushion, are secured together by means of buttons.
|
