发明名称 EXTENSION LADDER, LADDER COMPONENTS AND RELATED METHODS
摘要 A ladder is provided having a base section and a fly section slidably coupled with the base section. The base section includes a first pair of spaced apart rails and a first plurality of rungs extending between and coupled to the first pair of spaced apart rails. The fly section includes a second pair of spaced apart rails and a second plurality of rungs extending between and coupled to the second pair of spaced apart rails. The various rungs may be coupled with their associated rails in an offset relationship such that they are not centered along a longitudinal center axis line of the rails. A rung lock device may be used which includes an arm pivotally coupled with the base section and configured to selectively engage various rungs of the second plurality of rungs to maintain the fly section in a desired position relative to the base section.
申请公布号 WO2016073366(A3) 申请公布日期 2016.08.11
申请号 WO2015US58644 申请日期 2015.11.02
申请人 WING ENTERPRISES, INCORPORATED 发明人 BALLARD, JAY;SMITH, CHRISTIAN;JONAS, GARY;PETERSON, SEAN;RUSSELL, BRIAN
分类号 E06C1/12 主分类号 E06C1/12
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