| 摘要 |
PURPOSE:To eliminate such an unstable element as only the latter half of the buttocks in a posture on her back is supported by providing two foot rests in front of a seat part by making its slide distances large and small, respectively, and eliminating a step difference generated at the time of being drawn out. CONSTITUTION:In an ascending/descending frame 10 drawn out in front of a seat part, a second foot rest 15 is provided so that it can be drawn out further forward, and also, a fist foot rear 18 is supported so that it can ascend and descend by turning arms 16, 17, and in the vicinity of finishing a fast that a second foot rest 15 is drawn out forward, a cam plate 20 is moved by a second foot rest 15, and by turning the turning arms 16, 17 by the cam plate 20, a first foot rest 18 is allowed to ascend. |
