发明名称 Spring assisted apparatus for ramp actuating mechanism and movable draft arm arrangement
摘要 A ramp actuating mechanism for a rail vehicle having a movable ramp and a movable draft arm and coupler arrangement, wherein a spring assisted apparatus can be associated with the movable draft arm and coupler arrangement to counterbalance the load of the movable draft arm and coupler arrangement.
申请公布号 US2003110975(A1) 申请公布日期 2003.06.19
申请号 US20020216581 申请日期 2002.08.09
申请人 LI WEI 发明人 LI WEI
分类号 B61D3/18;B61D47/00;(IPC1-7):B61K13/00 主分类号 B61D3/18
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