发明名称 COLLAPSIBLE ATHLETIC TRAINING LADDER
摘要 A collapsible ladder for use primarily for athletic training and the like has a plurality of spaced-apart, substantially rigid rungs secured with collapsible connectors to a plurality of spaced-apart, substantially rigid spacers extending therebetween. In one disclosed embodiment, the collapsible connectors are strips of flexible material extending between the rungs and spacers. Another disclosed embodiment has a second set of rungs aligned substantially parallel to the plurality of spaced-apart rungs along a common central set of spacers. The collapsible connectors allow the ladder to be quickly and easily transitioned between an extended, operational position, and a collapsed, storage position.
申请公布号 WO2007103320(A3) 申请公布日期 2007.12.13
申请号 WO2007US05607 申请日期 2007.03.05
申请人 SPARQ PRODUCTS, INC.;DIETER, WILLIAM 发明人 DIETER, WILLIAM
分类号 A63B23/00 主分类号 A63B23/00
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