Patent ID: 8915333

Claim:
An elevator comprising: a cabin with a top and a bottom including at least two side walls and a back wall disposed between said top and said bottom; vertical guide elements for guiding said cabin, said vertical guide elements each defining a length extending between oppositely disposed ends; two support belts arranged symmetrically on one of said side walls or said back wall of said cabin; each of said belts passing around a respective plurality of groups of pulleys disposed between said oppositely disposed ends, comprising fixed groups of stationary pulleys mounted to said length of said vertical guide elements, and a number of moving groups of travelling pulleys corresponding to said fixed groups of stationary pulleys where said moving groups of travelling pulleys are mounted to the cabin between said top and said bottom of said cabin, wherein each of said groups of pulleys comprises at least two pulleys, where said groups of pulleys are arranged on mutually parallel axles and where said groups of pulleys arranged on said mutually parallel axles are further arranged vertically parallel one above the other, said pulleys of each of said groups of pulleys are substantially coplanar, said fixed groups of stationary pulleys being mounted at a position proximal to both of said oppositely disposed ends of each of said vertical guide elements, and each of said groups of pulleys comprises at least two pulleys having a diameter progressively decreasing from a first pulley of said group having a maximum diameter, to a last pulley of said group having a minimum diameter, wherein one of said pulleys in two of said groups of pulleys is a drive pulley connected to a motor or a motor with a reduction gear, wherein each of said belts passing around each group of pulleys are co-planar and extend in substantially the same vertical direction of said pulleys in said group thereby minimizing lateral deviation during use of said elevator.