Elevator system

Abstract

A construction site elevator system temporarily bridges at least part of the distance between the top stop of a jump lift and the top work level on the construction site. The construction site elevator system includes a frame structure and an elevator within the frame structure, the frame structure being configured to be insertable into an elevator shaft and being mountable at different positions in the elevator shaft.

Claims

1. An elevator system for a construction site, the elevator system comprising: a first elevator shaft and a second elevator shaft; a jump lift arranged in the first elevator shaft and movable up to a top stop below a top work level of the construction site; a construction site elevator system arranged in the second elevator shaft for temporarily bridging at least part of a distance between the top stop of the jump lift and the top work level; wherein the construction site elevator system includes a frame structure and an elevator incorporated in the frame structure, the elevator having an elevator car vertically movable within the frame structure, the frame structure including a plurality of rotatably mounted rollers and/or wheels positioned to contact and slide along at least one wall of the second elevator shaft as the construction site elevator system is lowered and raised; and wherein the construction site elevator system is insertable into the second elevator shaft and is selectively mountable at different positions on the second elevator shaft including at the top stop.

2. The elevator system according to claim 1 wherein the frame structure is formed as scaffolding.

3. The elevator system according to claim 2 wherein the scaffolding is steel scaffolding.

4. The elevator system according to claim 1 wherein the frame structure includes at least two cavities formed therein for entering and/or leaving the elevator car.

5. The elevator system according to claim 4 including doors for closing the cavities are provided at the at least two cavities in the frame structure.

6. The elevator system according to claim 5 wherein the at least two cavities are a top cavity and a bottom cavity.

7. The elevator system according to claim 1 wherein the frame structure includes at least three cavities for entering and/or leaving the elevator car.

8. The elevator system according to claim 7 including doors for closing the cavities are provided at at least two of the at least three cavities in the frame structure.

9. The elevator system according to claim 7 including doors for closing the cavities are provided only at a top cavity and a bottom cavity of the at least three cavities.

10. The elevator system according to claim 1 wherein the elevator includes the elevator car, a counterweight, a motor for moving the car and the counterweight, and a suspension means suspending the car and the counterweight.

11. The elevator system according to claim 1 including mounting means mounting the frame structure on the second elevator shaft.

12. The elevator system according to claim 11 wherein the mounting means is adapted to engage in door openings of a shaft wall of the second elevator shaft for mounting the frame structure.

13. The elevator system according to claim 1 wherein a bottom stop of the construction site elevator system is at a level of the top stop of the jump lift.

14. A method for temporarily bridging at least part of a distance between a top stop of a jump lift in a first elevator shaft and a top work level of an elevator system construction site, the method comprising the steps of: providing a construction site elevator system including a frame structure and an elevator within the frame structure, wherein the elevator has an elevator car vertically movable within the frame structure and the frame structure is configured to be insertable into a second elevator shaft and mountable at different positions on the second elevator shaft, the frame structure including a plurality of rotatably mounted rollers and/or wheels positioned to contact at least one wall of the second elevator shaft; temporarily mounting the construction site elevator system at a first position in the second elevator shaft of the construction site with a mounting means to temporarily bridge at least part of the distance between the top stop of the jump lift and the top work level of the construction site wherein the first position can be the top stop; removing the mounting means from the first position; lifting the construction site elevator system to a second position in the second elevator shaft with the rollers and/or wheels sliding along the at least one wall of the second elevator shaft; and mounting the construction site elevator system at the second position in the second elevator shaft with the mounting means.

15. The method according to claim 14 including performing the lifting by raising the construction site elevator system gradually in the second elevator shaft.

Description

DESCRIPTION OF THE DRAWINGS

(1) In the drawings:

(2) FIG. 1 is a schematic, highly simplified illustration of an elevator system; and

(3) FIG. 2 is a schematic illustration of a section of the elevator system according to FIG. 1.

DETAILED DESCRIPTION

(4) FIG. 1 is a schematic, highly simplified illustration of an elevator system 100, the elevator system 100 having two elevator shafts 102, 104. A jump lift 110 is provided in the first elevator shaft 102.

(5) The jump lift 110 comprises a car 112 which is movable within the first elevator shaft 102, a machine platform 114 on which the machine for moving the car 112 is arranged, a lifting platform 116 and a crash deck 118.

(6) The machine platform 114, the lifting platform 116 and the crash deck 118 can be gradually raised within the elevator shaft 102 so that the jump lift 110 can grow together with the building.

(7) At the upper end of the two elevator shafts 102, 104, a casting mold 120 is arranged, by means of which further floors of the elevator shafts 102, 104 are cast gradually.

(8) The top stop of the jump lift 110 is indicated by the line 122. As can be seen in FIG. 1, there is a large distance between this top stop level 122 and the casting mold 120, which distance can often be up to 40 m. In order to bridge this distance, a construction site elevator system 10 (shown in more detail in FIG. 2) is arranged in the second elevator shaft 104, which system can be raised correspondingly to the jump lift 110 and mounted at correspondingly different positions on the second elevator shaft 104.

(9) As shown in FIG. 2, the construction site elevator system 10 has a frame structure 12 within which a complete elevator 14 is arranged. This elevator 14 has a car 16, a counterweight 20 connected to the car 16 via a suspension means 18 and a motor 22 for moving the car 16. The elevator 14 is already completely arranged in the frame structure 12 in advance, so that no assembly is necessary on the construction site. On the contrary, the complete construction site elevator system 10 is simply inserted, in particular by means of a crane, into the elevator shaft 104 and mounted by suitable mounting means at the desired position on the elevator shaft 104. In the example shown in FIG. 2, mounting is carried out by the construction site elevator system 10 being placed on a beam 24.

(10) A total of three lateral cavities 30, 30B, 30T are provided in the frame structure 12, which cavities coincide with corresponding door openings of three floors arranged one above the other. Furthermore, the frame structure has a door 26, 28 at the top and bottom stops 30T, 30B, respectively, of the construction site elevator system 10, by means of which doors these cavities are closed. This has the advantage that no doors need to be installed at the openings of the elevator shaft 104.

(11) In the example shown in FIG. 2, no door is provided in the case of the central cavity 30 of the frame structure, i.e. the cavity 30 which coincides with the central floor. Instead, the opening in the shaft wall is closed by means of boards. In an alternative embodiment of the invention, a door may be provided on the frame structure 12 here, too.

(12) When the jump lift 110 has been raised, the construction site elevator system 10 is also raised correspondingly, for example via the crane by means of which it was inserted, and fixed at a new location of the elevator shaft 104. Alternatively, lifting can also take place from below, for example, by pushing by means of a hydraulic arrangement. It is advantageous if a plurality of rotatably mounted rollers and/or wheels 32 are provided on the frame structure 12 on the side facing away from the car 16, i.e. on the outside. This ensures that, when inserted into the shaft 104, the construction site elevator system 10 can slide on the rollers or wheels 32 along the shaft walls without damaging the shaft walls or being damaged itself.

(13) In accordance with the provisions of the patent statutes, the present invention has been described in what is considered to represent its preferred embodiment. However, it should be noted that the invention can be practiced otherwise than as specifically illustrated and described without departing from its spirit or scope.

LIST OF REFERENCE SIGNS

(14) 10 Construction site elevator system 12 Frame structure 14 Elevator 16 Car 18 Suspension means 20 Counterweight 22 Motor 24 Beam 26, 28 Door 30 Cavity 32 Roller or wheels 100 Elevator system 102, 104 Elevator shaft 110 Jump lift 112 Car 114 Machine platform 116 Lifting platform 118 Crash deck 120 Casting mold 122 Level