| 摘要 |
The journal spindle of the invalid chair is threaded, and the rim of each hand guide wheel journal is adjustable. A rear wheel (1) with a rim (2) has around the rim, a band (3) and hub . The rim and hub are connected to spokes (5). The hub (4) has an outward pointing threaded aperture (6) in which the journal (7) of the hand guide wheel is supported. The journal is the extended part of the hub (9). The circular tubular circumference (10 ) of the guide wheel is connected to the hub by spokes. |
