| 摘要 |
2067761 9105672 PCTABS00005 A steering unit (1) for a trolley (12) comprises a first member attached to the chassis (13) of the trolley (12) and a second member attached to a wheel (14) of the trolley (12) and locking means (7) and (5) which lock the second member, and so the wheel (14), in a predetermined position to allow the trolley (12) to be steered with ease.
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