| 摘要 |
The invention relates to a handcart composed of a main frame, four wheel sets properly assembled under the main frame, a grip, two positioning sleeves, and two joint assemblies installed between the main frame and the grip for changeably connecting the main frame with the grip. The grip can be aligned flat or become 90° to the main frame by means of the joint assemblies. Then the handcart can be transformed as a two-wheel handcart or a four-wheel one by handling the grip through movement of the pivotal connecting bases of the joint assemblies and combining the grip with the positioning sleeves movably fitted in positioning holes of the grip.
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