Demountable and foldable working platform i.e. scaffold, for use in building industry, has fastening bores connected with each other by stretcher pin including roller that is resumed and blocked by fixing pin of locking element

摘要

The platform has extension pieces with ends serving as projections for fastening of working platform extensions. Fastening bores (13) are connected with each other by a stretcher pin (9) and contact pins (10). A roller of long telescope-like lever parts (8) i.e. support, is extended as a short lever part and is relocated from perpendicular surfaces into a horizontal position during rotation of the lever parts of a double-armed lever from horizontal surfaces to a vertical position. A roller of the pin is resumed and blocked by a fixing pin (12) of a locking element.