Perfected folding stairway (Machine-translation by Google Translate, not legally binding)

摘要

Folding ladder perfected, of the type consisting of two sections articulated to each other, provided one of them of the steps, characterized essentially because the opening stop between both sections is determined by a flange that articulated, by one of its ends to a narrowing of section of the upper crosspiece of the section without steps, at its opposite end articulates in a plate provided with parallel parallel ears which is fixed under the conventional platform provided to replace the upper step, whose platform conventionally presents notches that fit into the crossbar where articulates the flange, which, in its central body, is advantageously provided with longitudinal wings that stiffen it. (Machine-translation by Google Translate, not legally binding)