| 摘要 |
<p>A pair of variably adjustable lower body supports such as footrests (20) or legrests (20) are mounted on a tubular receptacle (36) mounted on the frame (22) of a wheel chair (16). The support includes four elongated structural members (40, 42, 44, 46) and a planar footplate (54). Each of the structural members are sequentially linked together by releasable rotary connections (48, 50, 52). The releasable rotary connections each include a splined shaft (72, 86, 116) attached to one structural member and a splined sleeve (84, 100, 124) attached to the next structural member. A releasable fastening device (154, 158, 162) is used to hold the splined sleeve onto the splined shaft so that each sleeve can be selectively rotated relative to its shaft to provide a variety of angular orientations for the support and footplate relative to the wheel chair frame.</p> |
