| 摘要 |
The folding wheel chair (10) has an under carriage frame which consists of two upper and two lower framework piping pieces. The adjustment of the sitting depth of the cross-struts (18) keeps the seat facing the direction of travel. The wheel chair usually has small adjusting devices on it. The bottom end of the linking cross piece linkage (19,19',20) may be right angled to the extension. On the bottom frame piping (12) the side frame parts (11) are swivelable and longitudinally movable on the supporting element. On the lower end of the cross piece linkage there is a supporting element (24) with a supporting mounting (26,26'). |
