发明名称 Adjustable ladder stand-off brace for corner walls
摘要 A stand-off brace for attachment to the top end of a ladder maintains the top end of the ladder away from the work surface against which it would ordinarily rest. The brace has a general U-shape wherein the legs are reversible to vary the distance between the ladder and the work surface. The distance between the legs is also adjustable so that the brace spans the work surface. The legs are fitted with resilient ads for contacting the work surface without damage. Corner adapters are connected to the legs and the pads are pivotally attached to the adapters to maintain flush contact with the walls of a corner or a curved surface. The corner adapters have an angular offset to maintain flush contact with the ladder positioned at the recommended working angle.
申请公布号 US5121814(A) 申请公布日期 1992.06.16
申请号 US19900630280 申请日期 1990.12.19
申请人 SOUTHERN, DON L. 发明人 SOUTHERN, DON L.
分类号 E06C7/48 主分类号 E06C7/48
代理机构 代理人
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