STEPLADDER Russian patent published in 2019 - IPC E06C1/14 

FIELD: construction.

SUBSTANCE: invention relates to construction, namely to designs of collapsible stairs, support posts of which have non-parallel legs. Stepladder contains main post with two arranged at an angle α to each other with legs and, at least, one step between them, at that, the main vertical post is made as per the pipe scheme in the pipe, with upper and lower parts of which the raker legs are connected, on one of which the circular steps are mounted with one end, by the other end they enter the holes of the other raker leg.

EFFECT: increased stability and expansion of functional capabilities of the stepladder.

3 cl, 1 dwg