发明名称 Steel pole step assembly
摘要 A step assembly is provided that can be easily slipped into a utility pole opening and locked in place, and then easily removed after use. The step assembly includes 1) a step member having first and second legs, which are connected at one end and open at the opposite end and 2) a lever member that is rotatably attached to the step member and that urges the first and second legs apart. The free end of the legs include tabs protruding upwardly. The step assembly is inserted into the utility pole opening by pressing the legs toward each other. The step assembly is then inserted into the opening. The legs are released such that the legs spread apart and press against the opening's sides. The lever member is then rotated, forcing the enlarged portion between the legs of the step assembly to lock the step assembly in place.
申请公布号 US6484982(B1) 申请公布日期 2002.11.26
申请号 US20010809655 申请日期 2001.03.15
申请人 SPEED SYSTEMS, INC. 发明人 BARRY WILLIAM E.;KNAPP TODD K.
分类号 E06C9/04;(IPC1-7):E06C9/00 主分类号 E06C9/04
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