发明名称 Trailer hitch shock absorber
摘要 A trailer hitch adapter is provided for connection either to a trailer hitch ball or to a trailer hitch tongue. The adapter includes a tubular member that defines a housing and a connecting member carried within the housing between a pair of resilient elements to absorb axial shocks and rotational loads imparted by one of the towed vehicle or the towing vehicle to the other vehicle. The adapter is removably connected with a portion of the trailer hitch by means of a pair of retaining pins, to permit its removal and transfer from one vehicle to another, and also to prevent an unauthorized connection of a towed vehicle to a trailer.
申请公布号 US4978133(A) 申请公布日期 1990.12.18
申请号 US19890428959 申请日期 1989.10.30
申请人 THORNE, REXFORD M.;EDLEMAN, DAVID G. 发明人 THORNE, REXFORD M.;EDLEMAN, DAVID G.
分类号 B60D1/07;B60D1/50;B60D1/52 主分类号 B60D1/07
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