WORKING PLATFORM FOR LIFT OF SHAFT IN BUILDING UNDER CONSTRUCTION

摘要

FIELD: materials handling and transport engineering. SUBSTANCE: working platform is placed on highest ceiling plate of building under construction so as to cover lift shaft. Extending pin beams serve to position platform over shaft as necessary. Platform serves as template for vertical rails and stair landing door units, and it is moved by winches used for lifting guide sections and stair landing door units to their place in lift shaft. EFFECT: enlarged operating capabilities. 3 cl, 5 dwg