Installation method for an elevator

1. An installation method for an elevator in an elevator shaft comprising the steps of:

providing a counterweight frame movable along counterweight guide rails in the shaft;

providing an installation platform movable along car guide rails in the shaft;

loading the counterweight frame with at least one elevator component to be installed in the shaft; and

moving the counterweight frame along the counterweight guide rails relative to and independently of the installation platform.

2. The installation method according to claim 1 comprising the further steps of:

suspending a hoist, including a support device and a drive, in an upper area of the shaft in a travel region of an elevator car;

mounting a first set of the counterweight guide rails at a wall of the shaft bounding the travel region;

mounting the counterweight frame to be guided at the first set of counterweight guide rails;

suspending the counterweight frame at the hoist;

loading the counterweight frame with a second set of counterweight guide rails being the at least one elevator component;

moving the counterweight frame by the hoist into an unloading position in the shaft;

unloading the second set of counterweight guide rails from the counterweight frame; and

mounting the second set of counterweight guide rails at the wall of the shaft bounding the travel region.

3. The installation method according to claim 2 comprising the further step of fixing the counterweight frame in an end region of the first set of counterweight guide rails after reaching the unloading position.

4. The installation method according to claim 3 comprising the further steps of:

separating the hoist from the counterweight frame fixed at the first set of counterweight guide rails in the unloading position; and

lifting the second set of counterweight guide rails by the hoist into a vicinity of a mounting position in the shaft.

5. The installation method according to claim 2 comprising the further step of providing a third set of counterweight guide rails in a lower area of the shaft for later mounting in the shaft.

6. The installation method according to claim 2 comprising the further step of mounting a first set of car guide rails in the shaft.

7. The installation method according to claim 6 comprising the further step of providing a second set of car guide rails in a lower area of the shaft for later mounting in the shaft.

8. The installation method according to claim 7 comprising the further step of loading the counterweight frame with a third set of car guide rails for later mounting in the shaft.

9. The installation method according to claim 8 comprising the further steps of:

separating the hoist from the counterweight frame fixed at the an upper end of the second set of counterweight guide rails in the unloading position; and

lifting the third set of car guide rails into a vicinity of a mounting position in the shaft.

10. The installation method according to claim 6 comprising the further steps of:

suspending another hoist, including another support device and another drive, in the upper area of the shaft in the travel region of an elevator car;

mounting the installation platform guided at the first set of car guide rails;

connecting the another hoist with the installation platform; and

moving the installation platform by the another hoist into a work position in the shaft.

11. The installation method according to claim 2 comprising the further steps of:

automatically moving the counterweight frame by the hoist into an upper end position or a lower end position along the counterweight guide rails;

sensing the counterweight frame upon reaching the upper end position or the lower end position; and

switching off the hoist in response to the sensing.