| 摘要 |
<p>The carriage has a chassis supporting a seat, main rear wheels (21) and secondary front wheel. The main wheels have axles displaced with respect to the chassis to a take a usage position, in which the axles are in a vertical reference plane passing through center of gravity of the carriage, when the carriage is in a pulling configuration and another usage position in which axles are moved away from the plane, when the carriage is in a classical configuration. Side rails (2) carries the main wheels with respect to a fixed element of the chassis.</p> |
