Patent ID: 8881872
Filing Date: 2014-11-11
Classification: B66B,Y10T

Abstract:
1. A method in installing an elevator used during construction-time, wherein the construction-time elevator comprises: an elevator hoistway; an elevator car; hoisting roping for moving the elevator car in the elevator hoistway; a supporting platform for supporting the elevator car below the supporting platform via the hoisting roping; a mechanism configured to move the hoisting roping; a movable support structure above the supporting platform in the elevator hoistway; a hoisting device supported by the support structure and configured to lift the supporting platform upwards in the elevator hoistway; and a working platform movable in the elevator hoistway under construction above said movable support structure, said method comprising the steps of: performing at least two lifts; in each of said lifts, lifting the supporting platform higher in the elevator hoistway with said hoisting device supported by the support structure so as to extend the operating range of the elevator car to reach higher in the elevator hoistway; using a second support structure and a second hoisting device, which are above the support structure, between said lifts of the supporting platform, for moving the working platform in the elevator hoistway under construction between the second support structure and the support structure, and for lifting the support structure upwards in the elevator hoistway.