| 摘要 |
A wheelbarrow includes three wheels so that it may be pushed without bei ng lifted, thereby minimizing the potential for operator injuries due to liftin g the wheelbarrow. A braking mechanism including a lever having one end for engagi ng a user's hand or foot, and another end for engaging a sprocket secured to one of the wheels, may be used to resist movement of the wheelbarrow when such movement is not desired.
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