Anordning ved heis

摘要

In an elevator, which preferably is an elevator without machine room, a hoisting machine engages via a traction sheave a set of hoisting ropes comprising hoisting ropes of substantially circular cross-section. The ropes have a load-bearing part twisted from steel wires of circular cross-section and/or steel wires of non-circular cross-section. The average of the wire thicknesses of the steel wires of the hoisting ropes is less than about 0.5 mm and the wires have a strength exceeding about 2000 N/mm<2>.