| 摘要 |
A wheelchair ( 10 ) comprises a seat member ( 14 ) pivotally mounted on support beam ( 16 ) of a chassis ( 12 ). The chassis ( 12 ) includes a pair of spaced-apart side elements ( 18 ), each depending from the support beam ( 16 ) and having a first part ( 20 ) supporting a front ground-engaging wheel ( 22 ) and a second part ( 24 ) supporting a rear ground-engaging wheel ( 26 ). A bracing member ( 32 ) extends between the second parts ( 24 ) of the side elements ( 18 ), and supports a variable length strut ( 68 ). The variable length strut ( 68 ) extends from the bracing member ( 32 ) to rearward part ( 66 ) of seat member ( 14 ) and controls pivotal movement of seat member ( 14 ) around support beam ( 16 ). |
