Horizontal parallel surfaces for paraplegics - form extensions of parallel cylindrical bars on supports of adjustable length with ball joint pivots

摘要

The horizontal parallel surfaces have distal ends (1) roughly 50 cm. long and formed by parallel cylindrical bars, of which they form extent - sions (2) of variable length. They rest on supports (3) of adjustable length, and on further ones (4), which can be arranged to hinge and retract, while ball-joints allow them to be positioned horizontally or vertically along the supports.