| 摘要 |
A wheelchair construction has an undercarriage with lateral struts, a rear axle and a seat. A pair of connection adapters are connected with the lateral struts and the rear axle, and have a circular arc-shaped portion. A pair of seat supports are connected with the seat, and have a circular arc-shaped portion which mates with, is received in, and is supported by the circular arc-shaped portion of the connection adapters to facilitate selected angular shifting of the seat supports relative to the connection adapters for adjusting the tilt angle of the seat.
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