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专利名称：Folding trailer jack stand发明人：Archie Cofer申请号：US06/836879申请日：19860306公开号：US04662610A公开日：19870505
摘要：A jack stand or support for a trailer jack having a vertically extending housingand an extensible plunger telescopically contained by the depending end of the jackhousing includes an upright member mounted on a flat base. A sleeve-like socket, inwhich the upper end of the upright member is telescopically received, is secured to thedepending end of the jack plunger. The socket member is pivotally mounted in
elongated slots formed in parallel strap members secured to the upright member for alateral pivoting movement of the jack stand to a stored travel position by rollers on thestrap members contacting forwardly and rearwardly extending arcuate tracks, mountedon the jack housing, during retracting movement of the plunger into the housing.
申请人：MOORE; WAN EDWIN
代理人：Robert K. Rhea
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