发明名称 DRAWBAR HITCH ADAPTER PROVIDING ROLL AND PITCH FREEDOM
摘要 An adapter for connecting a agricultural implement swivel hitch to a drawing hitch on a towing vehicle that enables relative pitch and roll movement between the implement and vehicle at a single, pinned joint. Elongated openings in a first portion of the hitch adapter receive a transversely aligned connection pin. The openings are sized to allow limited pin angular movement about a vehicular roll axis. A second portion of the hitch adapter is also connected to the connection pin and configured to allow limited relative angular movement about a transverse pitch axis. The connection between the first and second portions at the connector pin allows relative angular movement therebetween about generally co-planar pitch and roll axes. The connector pin is formed from a softer material than the surrounding first and second portions thereby providing an inexpensive and easily replaceable weak link in the hitch adapter assembly.
申请公布号 US2013140792(A1) 申请公布日期 2013.06.06
申请号 US201113309515 申请日期 2011.12.01
申请人 HARKCOM MELANIE W.;HUGGARD ROGER 发明人 HARKCOM MELANIE W.;HUGGARD ROGER
分类号 B60D1/24 主分类号 B60D1/24
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