ELEVATOR SYSTEM

Abstract

A mounting bracket for mounting to a hoistway door opening of an elevator system includes a transverse support extending in a first direction and two lateral supports connected to and extending away from the transverse support. The transverse support has a floor fixing portion adapted to be fixed to a horizontal surface of the floor landing at the door opening. Each of the lateral supports has a rail fastening portion that extends parallel to the first direction and includes at least one mounting opening for fastening a guide rail for guiding an elevator car.

Claims

1-10. (canceled)

11. An elevator system comprising: a vertical elevator shaft in which an elevator car is movable up and down along guide rails between floors; wherein the guide rails are connected to the elevator shaft at a door-side shaft wall; an installation bracket connecting the guide rails to the door-side shaft wall at one of the floors; wherein the installation bracket includes a crossmember extending along the door-side shaft wall and two side members projecting away from the crossmember into the elevator shaft; wherein the crossmember has a floor fixing portion fixed to a horizontal surface of a floor landing at the one floor; and wherein each of the side members has a rail fastening portion extending parallel to the door-side shaft wall, each of the rail fastening portions having at least one mounting hole adapted to fasten one of the guide rails.

12. The elevator system according to claim 11 wherein the at least one mounting hole is an elongated hole.

13. The elevator system according to claim 11 wherein the side members and the crossmember are each formed as bent parts made of sheet metal.

14. The elevator system according to claim 11 wherein the side members and the crossmember are formed from a common sheet metal blank.

15. The elevator system according to claim 11 wherein each of the side members has a horizontal web portion extending from the crossmember to the rail fastening portion, the rail fastening portion adjoining the horizontal web portion at a right angle.

16. The elevator system according to claim 15 wherein the rail fastening portion is connected to the horizontal web portion by a folded edge.

17. The elevator system according to claim 15 wherein the crossmember has a vertical member wall portion adjoining the floor fixing portion, the vertical member wall abutting against the door-side shaft wall.

18. The elevator system according to claim 17 wherein the vertical member wall portion adjoins the floor fixing portion at a folded edge.

19. The elevator system according to claim 11 wherein the crossmember has a vertical member wall portion adjoining the floor fixing portion, the vertical member wall portion abutting against the door-side shaft wall.

20. The elevator system according to claim 19 wherein the vertical member wall portion adjoins the floor fixing portion at a folded edge.

21. The elevator system according to claim 11 wherein the floor fixing portion is formed as a plate support structure that extends over an entire length of the crossmember.

22. The elevator system according to claim 21 wherein the plate support structure is formed of sheet metal.

23. The elevator system according to claim 11 wherein the floor fixing portion extends over an area of the horizontal surface of the floor landing that is at least as large as combined cross-sectional areas of the guide rails.

24. The elevator system according to claim 11 including a shaft door arranged at the one floor above the floor fixing portion in a vertical projection.

25. An installation bracket for mounting at a shaft door opening of an elevator shaft of an elevator system, the installation bracket comprising: a crossmember extending in a first direction; two side members projecting away from the crossmember in a second direction transverse to the first direction; wherein the crossmember includes a floor fixing portion adapted to be fixed to a horizontal surface of a floor landing at the shaft door opening; and wherein each of the side members has a rail fastening portion extending in parallel with the first direction, each of the rail fastening portions having at least one mounting hole adapted to fasten the rail fastening portion to a guide rail for guiding an elevator car in the elevator shaft of the elevator system.

Description

DESCRIPTION OF THE DRAWINGS

[0020] Further individual features and advantages of the invention emerge from the following description of exemplary embodiments and from the drawings. In the drawings:

[0021] FIG. 1 is a schematic side view of an elevator system according to the invention,

[0022] FIG. 2 is a simplified side view of an installation bracket according to the invention mounted on a floor landing of an elevator shaft,

[0023] FIG. 3 is a plan view of an installation bracket according to a further embodiment,

[0024] FIG. 4 is a perspective view of the installation bracket from FIG. 3 installed on the floor landing,

[0025] FIG. 5 is a perspective view of a further installation bracket, and

[0026] FIG. 6 is a plan view of the installation bracket from FIG. 5.

DETAILED DESCRIPTION

[0027] FIG. 1 shows an elevator system, designated overall with 1. Elevators are used for vertical transport in multi-story buildings. The building shown as an example has an elevator shaft 4 in which an elevator car 5 can be moved up and down to individual floors 10.1, 10.2, 10.3, 10.4. The vertical elevator shaft 4 is delimited by a shaft floor at its lower end. The elevator shaft 4 has a shaft door opening 6 in the form of a wall opening for each floor 10.1, 10.2, 10.3, 10.4. The shaft door opening 6 provides access from the floor into the elevator car 5. The elevator shaft 4 is delimited laterally by a door-side shaft wall 12.

[0028] The elevator car 5 is moved by support elements (not shown here), to which the elevator car 5 is fastened; the support elements may be one or more support cables or support belts. The elevator car 5 may, for example, be self-supporting or be arranged in a supporting structure, such as a supporting frame. In the present case, the elevator car 5 shown in FIG. 1 has, in simplified form by way of example, a cuboid car body and comprises a car floor, car walls and a ceiling. Furthermore, the elevator car 5 usually has a car door (not shown), which closes off the interior of the elevator car 5 and which faces the door-side shaft wall 12.

[0029] For guiding the elevator car 5, guide rails 3 are arranged in the elevator shaft 4. The elevator car 5 can be moved up and down along the guide rails 3 between the floors 10.1, 10.2, 10.3, 10.4. As can be seen, the guide rails 3 are connected to the elevator shaft 4 in the region of the door-side shaft wall 12 via installation brackets designated with 2. For connection to the guide rails 3, the elevator system 1 comprises, by way of example for floors 10.1 and 10.4, an installation bracket 2 to which the guide rails 3 are fastened. Preferably, each floor 10.1, 10.2, 10.3, 10.4 comprises such an installation bracket 2, to which the guide rails 3 are fastened. The installation bracket 2 has a horizontal floor fixing portion 15, which rests on a horizontal surface of the floor landing 11 and is fixed thereto. Side members 8 adjoin the floor fixing portion 15, wherein a respective rail fastening portion 14, to which the respective guide rail 3 is fastened, is provided at the front end of each side member 8. The rail fastening portion 14 has one or more mounting holes (not shown here) for fastening the guide rail 3. The corresponding fastening elements are indicated by short dashed lines.

[0030] The elevator of FIG. 1 may be designed as a traction elevator system 1 and, in addition to the elevator car 5, may have at least one counterweight (not shown) that can be moved in the opposite direction to the elevator car 5. According to an exemplary embodiment of the elevator system 1, special guide rails 3 may be used, which serve as linear guides both for the elevator car 5 and for two counterweights. The traction elevator system 1 may have two drives (not shown) for this purpose. In this case, the two drives (e.g., Koepe sheave drives) drive the respective support elements and thus move the elevator car 5 and the two counterweights in opposite directions. Each drive is associated with one of the counterweights. Two mutually opposite guide rails 3 are provided on both sides of the elevator car 5 to guide the elevator car 5 and the counterweights. In this case, the elevator system may have special guide rails 3, which serve as linear guides for both the elevator car 5 and the respective counterweights. The guide rails 3 may be manufactured as one-piece rolled profiles. The guide rails 3 may be hollow profiles, for example, manufactured as one-piece rolled profiles. Further details on the design of such special guide rails and on the guidance of the car and the counterweights with common guide rails can be found in WO 2020/127787 A1.

[0031] The installation bracket 2 makes an advantageous fixing of the guide rails 3 in the elevator shaft possible. The elevator system 1 may comprise a plurality of installation brackets, with each of these installation brackets being fixed separately to another of the floors 10.2, 10.3, 10.4 located above the lowest floor 10.1. In order to relieve the installation bracket 2 associated with the floor 10.1, the guide rail 3 or a guide rail segment fixed to the installation bracket 2 may be positioned on the shaft floor of the elevator shaft 4, in particular may be supported by this shaft floor.

[0032] FIG. 2 shows a shaft door opening 6 arranged on a floor landing 11. A shaft door 20 is arranged at this shaft door opening 6. The floor landing 11 comprises, for example, a horizontal concrete surface 11 and may comprise a walk-on surface 11 that can be walked on during conventional use of the floor 10.1, wherein the walk-on surface 11 may be formed, for example, by application of screed.

[0033] The installation bracket 2 for fixing the guide rail 3 is therefore fixed to the floor landing 11 by means of the floor fixing portion 15, preferably before application of the exemplary screed to the concrete surface. A door sill 21 is arranged above the floor fixing portion 15 so that the door sill 21 forms a substantially flat surface with the walk-on surface 11. In addition, the door sill 21 may be integrated in the walk-on surface 11 such that the walk-on surface 11 does not form an offset or a groove or the like.

[0034] It can also be seen from FIG. 2 that the floor fixing portion 15, preferably formed by a crossmember 7, is closed by a member wall portion denoted by 13. This member wall portion 13 forms a vertical stop which rests against the door-side shaft wall 12.

[0035] Essential components of the shaft door 20 are arranged in the vertical alignment of the floor landing 11. This means that these essential components of the shaft door 20 are arranged outside the shaft space of the elevator shaft 4. The essential components of the shaft door 20 comprise, for example, the door sill 21, a door leaf 22 and a guide rail 23 for guiding the door leaf 22. In addition, the shaft door 20 may comprise further door leaves 22, wherein the shaft door 20 may be designed to close centrally or telescopically.

[0036] In addition, the shaft door 20 may, for example, comprise coupling elements 24 for mechanical coupling to a coupling unit (not shown) arranged on the elevator car 5. Accordingly, the elevator car 5 may comprise a car door having a door drive motor. This door drive motor is provided, for example, for a synchronous opening/closing of the shaft door coupled to the car door and, if applicable, also for unlocking the car door and/or the shaft door. With respect to the shaft door 20, the coupling unit accordingly fulfills the purpose of establishing an operative connection between the door drive motor and the shaft door 20. Such coupling elements 24 accordingly project into the shaft space or the cross-sectional area of the elevator shaft 4.

[0037] As can be seen in FIG. 2, the shaft door 20 is arranged exactly in the vertical projection above the floor fixing portion 15.

[0038] It can furthermore be seen in FIG. 2 that the side member 8 has a rail fastening portion 14, which extends in parallel with the door-side shaft wall 12, is provided at the front end of the side member and has a mounting hole 18 (FIG. 4) for fastening the guide rail 3 by means of fastening elements indicated by 25. Screw connections are in particular suitable as fastening elements.

[0039] FIG. 3 shows an installation bracket 2 for an elevator system of the type described above. The installation bracket 2 comprises the crossmember 7 and two side members 8 and 9 extending at a right angle to the crossmember 7. A respective guide rail 3 is or can be fastened to the ends of these side members 8, 9 by one or more screws 28.

[0040] The installation bracket 2 comprises the floor fixing portion 15, which is arranged along the crossmember 7 for directly fixing the crossmember 7 to a floor landing. By way of example, the installation bracket 2 can be fixed with screws 26, which are to be anchored in the floor landing, or similar fastening elements. In the floor fixing portion 15, mounting holes 19 created by holes or bores are arranged. By means of such mounting holes 19, the installation bracket 2 can be fixed adjustably to the floor landing. Accordingly, a washer 29 can be used for adjustable fixing. Adjustment points 27 make adjustability possible with respect to further installation brackets 2 arranged in the elevator shaft, by means of exemplary plumb lines or comparable alignment elements such as laser beams suitable for aligning the installation bracket 2.

[0041] In plan view, the installation bracket 2 forms a U-shaped bracket structure. The crossmember 7 extending along the door-side shaft wall 12 and the two side members 8, 9 projecting from the crossmember into the shaft space form this U.

[0042] FIG. 4 shows an installation bracket 2 fixed to a floor landing 11. By means of the crossmember 7 thereof, the installation bracket 2 is fixed directly to the concrete surface of the floor landing 11. The crossmember 7 has a folded edge for forming the vertical member wall portion 13, which can be arranged at the end of the floor landing delimited by the elevator shaft. The member wall portion 13 forms a stop toward the door-side shaft wall 12 and can terminate the crossmember 7 toward the elevator shaft 4. As can be seen, the member wall portion 13 extends in the horizontal direction between the side members 8 and 9. When the installation bracket 2 is properly fixed to the floor landing, the folded edge or the member wall portion 13 preferably projects vertically downward so that a minimum distance between the guide rail that can be fixed to the installation bracket 2 and the floor landing can be maintained by means of the folded edge.

[0043] The crossmember 7 has the floor fixing portion 15, which rests on the horizontal surface of the floor landing 11 and is fixed thereto so that the crossmember 7 is arranged substantially entirely within the floor landing 11. Substantially only the side members 8, 9 are thus arranged in the shaft space. Each of the side members 8, 9 has a rail fastening portion 14 which extends in parallel with the door-side shaft wall 12 and has at least one mounting hole 18 for fastening the guide rail 3 shown in outline. As an example, the guide rails 3 are designed as T-shaped rail profiles. Of course, differently shaped rail profiles could also be fastened to the installation bracket 2. The special front-side connection of the guide rail 3 to the installation bracket 2 is in particular suitable for guide rails 3 designed as hollow rails.

[0044] FIG. 5 shows structural details of a further variant of an installation bracket 2 for an elevator system 1 for mounting on a shaft door opening. The installation bracket 2 with the crossmember 7 and the two side members 8, 9 forms a U-shaped bracket structure. The crossmember 7 extends in a first direction, which direction is predetermined by the door-side shaft wall when the installation bracket 2 is mounted. The crossmember 7 then extends along the door-side shaft wall. The two side members 8, 9 projecting away from the crossmember 7 each run in a second direction perpendicular to the first direction. The crossmember 7 has a floor fixing portion 15, which can be fixed to a horizontal surface of the floor landing 11 such that the crossmember 7 can be arranged substantially entirely within the floor landing. Substantially only the side members 8, 9 can thus be arranged in the shaft space of the elevator shaft. Each of the side members 8, 9 has a rail fastening portion 14, which extends in parallel with the first direction, is provided at the free end of the side member and has two mounting holes 18. The two mounting holes 18 are used to fasten a guide rail (not shown). Instead of the two mounting holes 18 shown as examples, only one mounting hole 18 or possibly even more than two mounting holes are of course also conceivable for each rail fastening portion 14. The at least one mounting hole 18 is designed as an elongated hole, which has an advantageous effect with regard to the mountability. The elongated hole can accommodate fastening screws or fastening bolts for fastening the guide rails.

[0045] The side members 8, 9 and the crossmember 7 are each designed as rigid bent parts made of a sheet metal (e.g., steel sheet). Instead of the multi-piece design, the installation bracket 2 may also be designed in one piece and be made from a single or common sheet metal cut. The crossmember 7 has a vertical member wall portion 13, which adjoins the floor fixing portion 15 and is created by a folded edge, as a stop to the door-side shaft wall. Each side member 8, 9 has a horizontal web portion 17 and a vertical web portion 16. Details regarding orientation (horizontal and vertical) relate to the situation after installation. The vertical web portion 16 is integrally connected to the horizontal web portion 17 via a folded edge. The two web portions 16 and 17 extend from the crossmember 7 to the guide rail. The member wall portions 13 are respectively arranged at the front end of the side members 8, 9. In the present case, the rail fastening portion 14 adjoins the horizontal web portion 17 at a right angle and is connected to the horizontal web portion 17 via a folded edge.

[0046] As is also clear in particular from FIG. 6, the floor fixing portion 15 forms a plate-like support structure, which support structure extends over the entire length of the crossmember 7 (length viewed with respect to the aforementioned first direction). The floor fixing portion 15 is designed to be sufficiently large to rest on the horizontal floor landing. It may be advantageous if the floor fixing portion 15 acts on a horizontal surface on the floor landing that is at least as large as the total cross-sectional areas of the guide rails.

[0047] 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.