发明名称 Handcart
摘要 The invention relates to a handcart composed of a main frame, four wheels properly assembled with a frame rod of the main frame, a grip, two positioning sleeves combined movably with the grip, and two joint assemblies installed between the main frame and the grip for changeably connecting the main frame with the grip. The grip together with the positioning sleeves can be aligned flat or become 90° relative to the main frame by means of the joint assemblies. Then the handcart can be transformed into a two-wheel handcart or a four-wheel one by handling the grip through movement of the pivotal bases of the joint assemblies.
申请公布号 US8454033(B2) 申请公布日期 2013.06.04
申请号 US201113034724 申请日期 2011.02.25
申请人 TSAI HAIMING 发明人 TSAI HAIMING
分类号 B62B1/00;B62B3/00 主分类号 B62B1/00
代理机构 代理人
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