| 摘要 |
An elevator comprising a cabin (1), vertical guide elements (2, 3) for guiding said cabin, at least one suspension or support belt (4, 5), groups of pulleys associated to the guide elements and the cabin; each of said groups of pulleys is composed of at least two coplanar pulleys arranged on parallel axles and vertically one above the other; each of the groups of pulleys comprises pulleys having a diameter decreasing from a pulley of a maximum diameter to a pulley of a minimum diameter. Preferred embodiments of the belts having one or two concave or convex surfaces and internal reinforcing wires are disclosed. |
