Elevator system having an improved hoisting machine

摘要

An elevator system comprises:
a car (2) which moves vertically along a predetermined path within a hoistway;
a counterweight (3) provided in a clearance defined between the interior wall of the hoistway and said car;
turning pulleys (10,11) whose rotation axes are oriented horizontally and which are provided on the upper end of the hoistway, one of said turning pulleys being provided so as to associate with said car, and the other being provided so as to associate with the counterweight;
a hoisting machine (26) mounted on the upper end of the hoistway so as to correspond to the vicinity of a side surface of said car opposite the door, said hoisting machine (26) having a driving sheave (27) provided thereon and whose rotor axis is oriented vertically; and
a main cable (12) whose one end is connected to a predetermined location on the hoistway by way of said car pulley and whose other end is connected to another location on the hoistway by way of the counterweight pulley and which extends vertically to a pair of turning pulleys and which extends horizontally to said driving sheave (27).