发明名称 Collapsible ladder
摘要 The present invention relates broadly to a collapsible ladder ( 10 ) comprising a pair of opposing rails ( 12 A) and ( 12 B) interconnected with a plurality of rails ( 14 A) to ( 14 J). The collapsible ladder ( 10 ) can be moved or manipulated from a collapsed condition to an operative condition. In the collapsed condition the opposing pair of rails are ( 12 A/B) locate adjacent or abut one another whereas in the operative position the rails ( 12 A/B) are laterally spaced with the interconnecting rungs ( 14 A) to ( 14 J) being disposed substantially perpendicular thereto. Each of the rungs such as ( 14 A) is at its opposing ends pivotally connected to respective of the opposing pair of rails ( 12 A/B). This pivotal connection between the rungs such as ( 14 A) and rails ( 12 A/B) allows the ladder ( 10 ) to move from its operational to collapsed conditions.
申请公布号 US2006032708(A1) 申请公布日期 2006.02.16
申请号 US20050511843 申请日期 2005.07.27
申请人 WELSH GRAHAM K 发明人 WELSH GRAHAM K.
分类号 E06C1/00;E06C1/383;E06C7/42;E06C7/48 主分类号 E06C1/00
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