发明名称 Tractor hitch
摘要 A hydraulic hitch mounted on the back of a tractor has a pair of first upright tubular members that slide into second upright tubular members fixed to the tractor frame. A pair of piston and cylinder assemblies are used to raise and lower a draw bar attached to the first tubular members. The draw bar movably supports a tongue having a connector used to connect the hitch to an implement.
申请公布号 US5257797(A) 申请公布日期 1993.11.02
申请号 US19920863102 申请日期 1992.04.03
申请人 JOHNSON, JERRY A. 发明人 JOHNSON, JERRY A.
分类号 B60D1/46;(IPC1-7):B60D1/18 主分类号 B60D1/46
代理机构 代理人
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