发明名称 A FOLDING STAIRS
摘要 PURPOSE: A folding ladder is provided to allow a user to perform a work while a user maintains stable posture by gripping the ladder with hands. CONSTITUTION: A folding ladder comprises a pair of linear legs(1) and a handrail unit. The linear legs are folded or are spread around a hinge point of the upper part as a shaft and comprises a vertical member(4) in which a plurality of scaffolds(3) is arranged. The handrail unit is installed in the vertical member in a longitudinal direction with a gap and comprises a protraction pipe(5) in order to protract a length.
申请公布号 KR20130065553(A) 申请公布日期 2013.06.19
申请号 KR20110132464 申请日期 2011.12.10
申请人 YOO, IN HA;KIM, YEONG JUNG 发明人 YOO, IN HA;KIM, YEONG JUNG
分类号 E06C1/38;E06C1/12 主分类号 E06C1/38
代理机构 代理人
主权项
地址