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1. 发明授权

US5704450A Portable and foldable workhorse 失效
标题翻译：便携式和可折叠的主力
公开(公告)号：US5704450A
公开(公告)日：1998-01-06
申请号：US529921
申请日：1995-09-18
申请人： Harvey Lunceford
发明人： Harvey Lunceford
IPC分类号： B25H1/06 , B27B21/00
CPC分类号： B25H1/06
摘要： A portable and foldable workhorse. A pair of parallel rails includes an open space between the rails, the rails providing a flat top support surface and a bottom support surface. A pair of leg assemblies each includes a top surface. A center beam is attached to each leg assembly so that each center beam is moveable in the open space between said pair of rails. A shaft passes through and perpendicular to the parallel rails and through and perpendicular to the center beam. The shaft pivotally connects each center beam to the rails to allow movement of each leg assembly between a usage position wherein the rail bottom support surface rests on the top surface of the leg assemblies and a storage position wherein the leg assemblies will move radially about a pivot point on the top rails.
摘要翻译：便携式和可折叠的主力。一对平行轨道包括在轨道之间的开放空间，轨道提供平坦的顶部支撑表面和底部支撑表面。一对腿组件各自包括顶面。中心梁附接到每个腿组件，使得每个中心梁可在所述一对轨道之间的开放空间中移动。轴通过并垂直于平行轨道并且穿过并垂直于中心梁。轴将每个中心梁枢转地连接到轨道，以允许每个腿部组件在使用位置之间移动，其中轨道底部支撑表面搁置在腿部组件的顶部表面上，并且存储位置，其中腿部组件将围绕枢轴径向移动指向顶部导轨。

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