Arrangement and a method for parallel transport and installation of elevator components

1. A transport and installation arrangement for parallel transport and installation of elevator components, comprising:

a first working platform system in an elevator shaft configured to reach a first installation height, the first working platform system including a first platform hoist, a first platform roping and a vertically movable first working platform, the vertically movable first working platform configured to support first personnel working on the installation of the elevator components at a first height in the elevator shaft;

a first material hoisting system configured to transport the elevator components vertically in the elevator shaft to the first personnel on the vertically movable first working platform, the first material hoisting system including a first material hoist, a first material roping and a first material holder, the first material holder being movable along at least one counterweight guide rail;

a second working platform system in the elevator shaft configured to reach a second installation height, the second working platform system including a second platform hoist, a second platform roping and a vertically movable second working platform,

the vertically movable second working platform configured to support second personnel working on the installation of the elevator components at a second height in the elevator shaft, the second working platform being below the first working platform; and

a second material hoisting system configured to transport the elevator components vertically in the elevator shaft to the second personnel on the vertically movable second working platform, the second material hoisting system including a second material hoist, a second material roping and a second material holder, the second material hoist being a separate hoist attached to a top of the elevator shaft on an opposite side of the elevator shaft from the first material hoist attached to the top of the elevator shaft such that elevator components are transportable to the first personnel on the first working platform and the second personnel on the second working platform in parallel by the first material hoisting system and the second material hoisting system, respectively.

2. The transport and installation arrangement according to claim 1 , wherein

at least a first one of the first working platform system and the second working platform system is mounted to the top of the elevator shaft, and

a second one of the first working platform system and the second working platform system is mounted to one of (i) the top of the elevator shaft and (ii) the first one of the first working platform system and the second working platform system.

3. The transport and installation arrangement according to claim 1 , wherein the second platform roping runs through the first working platform.

4. The transport and installation arrangement according to claim 3 , wherein the first working platform comprises a protective collar surrounding the second platform roping.

5. The transport and installation arrangement according to claim 1 , wherein

the first working platform system is connected to at least one of a top part of the elevator shaft, and one or more lifting beams installed above the first and second installation heights; and

the second working platform system is on the first working platform.

6. The transport and installation arrangement according to claim 1 , wherein at least one of the first working platform system and the second working platform system is movable along elevator car guide rails.

7. The transport and installation arrangement according to claim 1 , wherein the second material hoisting system is positioned laterally to the first working platform and the second working platform such that the elevator components move vertically in the elevator shaft independently of the height at which the first working platform and the second working platform are located.

8. The transport and installation arrangement according to claim 1 , wherein the second material hoisting system is suspended in front of a vertical center-line of elevator landing entrances.

9. The transport and installation arrangement according to claim 1 , wherein the first material hoisting system is configured to transport guide rail sections and the second material hoisting system is configured to transport pre-assembled landing door arrangements.

10. The transport and installation arrangement according to claim 1 , wherein the first working platform comprises a protection extension extending in a horizontal direction around the first working platform to prevent accidental falling of items from the first working platform.

11. The transport and installation arrangement according to claim 1 , wherein at least one of the first working platform and the second working platform includes a limit switch to maintain a set minimum distance between the first working platform and the second working platform.

12. The transport and installation arrangement according to claim 1 , wherein at least one of the first working platform and the second working platform comprises an elevator car.

13. The transport and installation arrangement according to claim 1 , wherein

the first working platform is used to install elevator car guide rails and counterweight guide rails while building an elevator in the elevator shaft, and

the second working platform is used to install pre-assembled landing door arrangements while building an elevator in the elevator shaft.

14. The transport and installation arrangement according to claim 1 , wherein at least one of the first and the second installation height is at a height of at least 50 meters form a bottom of the elevators shaft.