发明名称 Ladder step and platform
摘要 A step and platform for use with a ladder which will allow a user to climb the ladder, using the ladder rungs, and, upon reaching a desired height at which the unit has been placed, swing the same into platform position. When in aligned position with the other rungs and stiles of the ladder, the rung thereof is available for normal climbing use and after ascending, the user may release the unit from aligned position to its support position and stand or place articles thereon. The unit is easily inserted between adjacent rungs of a ladder and shifted to its operative position. A locking unit may be permanently affixed to the existing ladder or may be included with the ladder design. The step and platform includes elements to engage the provided stiles and one rung of the ladder when in position on the ladder.
申请公布号 US2003085074(A1) 申请公布日期 2003.05.08
申请号 US20020046682 申请日期 2002.01.16
申请人 HARMSTON TERRY 发明人 HARMSTON TERRY
分类号 E06C7/16;(IPC1-7):E06C7/16 主分类号 E06C7/16
代理机构 代理人
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