| 摘要 |
<p>The pivoting support (6) for the wheels (4) on a push-chair leg is provided with a lock which temporarily holds the support and wheels in the straight ahead position. The lock consists of a lever (9) mounted about a horizontal axis (10) on the framework (1,8) of the push-chair. One end (11) of the lever (9) is folded back on itself to form a hook which in use fits over the support and keeps the wheels in the straight ahead position whilst travelling over a gravel surface.</p> |
