ELEVATOR ARRANGEMENT AND METHOD

摘要

The invention relates to an elevator arrangement, which comprises one or more elevator units to be moved in an elevator hoistway, said unit(s) including at least an elevator car, and possibly also a counterweight, roping connected to an elevator unit, which roping comprises a plurality of ropes, and a moveable supporting structure in the elevator hoistway for supporting the aforementioned one or more elevator units below it via the aforementioned roping, and a rope pulley or rope pulley stack of the supporting structure in connection with the supporting structure, around which rope pulley or rope pulley stack the aforementioned roping travels, and from which the roping travels down to an elevator unit. The roping travels from the aforementioned rope pulley or rope pulley stack down to an elevator unit, in connection with which is a first rope pulley or rope pulley stack and a second rope pulley or rope pulley stack, which are disposed non-coaxially in relation to each other, their rotation axes being separate from each other in the lateral direction, and in that the first part of the ropes of the roping traveling from the rope pulley or rope pulley stack down to the elevator unit travels to the elevator unit, to the first rope pulley or rope pulley stack that is in connection with the elevator unit, under the pulley or stack, and onwards back up to a rope anchorage arrangement, and the second part to the second rope pulley or rope pulley stack in that is connection with the elevator unit in question, under the pulley or stack, and onwards back up to a rope anchorage arrangement. The invention also relates to corresponding guidance of compensating roping, as well as to a method wherein the service range of the elevator car is increased.

主权项

1. Elevator arrangement, which comprises
an elevator hoistway, one or more elevator units to be moved in the elevator hoistway, said unit(s) including at least an elevator car, and possibly also a counterweight, roping connected to the one or more elevator units, which roping comprises a plurality of ropes, a moveable supporting structure in the elevator hoistway for supporting the aforementioned one or more elevator units below it via the aforementioned roping, a rope pulley or rope pulley stack (preferably a traction sheave driven by a motor) of the supporting structure in connection with the supporting structure, around which rope pulley or rope pulley stack the aforementioned roping travels, and from which the roping travels down to an elevator unit,wherein the roping travels from the aforementioned rope pulley or rope pulley stack of the supporting structure down to an elevator unit, in connection with which is a first rope pulley or rope pulley stack and a second rope pulley or rope pulley stack, which are disposed non-coaxially in relation to each other, their rotation axes being separate from each other in the lateral direction, and in that the first part of the ropes of the roping traveling from the rope pulley or rope pulley stack down to an elevator unit travels to the first rope pulley or rope pulley stack that is in connection with the elevator unit, under the pulley or stack, and onwards back up to a rope anchorage arrangement, and the second part to the second rope pulley or rope pulley stack that is in connection with the elevator unit in question, under the pulley or stack, and onwards back up to a rope anchorage arrangement.