Work ladder used as working platform
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United States of America Patent
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Jan 1, 2019
Grant Date -
Dec 13, 2018
app pub date -
May 12, 2015
filing date -
Jan 27, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A working ladder capable of serving as a working platform, comprises a ladder frame body having a front portion and a top; and a step assembly. The step assembly comprises at least a bottom step and an upper step located above the bottom step; the rear shaft comprises a bottom rear shaft and an upper rear shaft; two movable auxiliary support rods capable of swinging up and down are disposed in the front portion of the ladder frame body; an auxiliary shaft for the rear end of the bottom step to rest on is horizontally disposed on the top of the ladder frame body; when the auxiliary support rods are in a downward position, the rear end of the bottom step rests on the lowermost bottom rear shaft; when the auxiliary support rods are in a upwardly position, the bottom step moves upwardly to the top of the ladder frame body, and meanwhile the rear end of the bottom step rests on the auxiliary shaft. The steps of the working ladder can be used as working platforms.
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