WO2011073028A1

WO2011073028A1 - Double deck elevator system

Info

Publication number: WO2011073028A1
Application number: PCT/EP2010/068588
Authority: WO
Inventors: Elena Cortona; Frankie Schmid
Original assignee: Inventio Ag
Priority date: 2009-12-15
Filing date: 2010-12-01
Publication date: 2011-06-23

Abstract

An elevator system (1) comprises a car support (2) which can be displaced in a travel path (5) designed for the car support (2) to travel in, a first elevator car (3), arranged on the car support (2), and a second elevator car (4) arranged on top of the first elevator car (3) on the car support (2). Hydraulic adjusting elements (25, 26) serve to adjust the second elevator car (4) relative to the first elevator car (3). The hydraulic adjusting elements (25, 26) are structurally integrated into the car support (2).

Description

Elevator with double decker

Technical area

The invention relates to an elevator system with at least one elevator car carrier, the at least two elevator cars

can record. Specifically, the invention relates to the field of elevator systems, which are designed as so-called. Double Decker elevator systems.

State of the art

From JP 2001-322771 AI is a double-decker elevator

known. The known elevator has a cabin frame, in which two cabins are arranged one above the other. Here, the upper cabin via an elastic body to the

Cab frame supported. The lower cabin is supported by an elastic body on a pedestal. The base is in turn via hydraulic Olzylinder on the

Cab frame supported. Here, a weight of the lower cabin is measured. The oil pressure for the hydraulic oil cylinder is controlled depending on the weight of the lower car.

The double-decker elevator known from JP 2001-322771 AI has the disadvantage that in the car frame for the lower elevator a clearance over the second elevator car must be provided to allow lifting of the second elevator car by the hydraulic Olzylinder. In addition, under the lower cabin, an installation space is required, the Picking up the hydraulic oil cylinder is used. This results in a large height of the cabin frame, which is well below a lowest position of the lower cabin, since under the lower cabin, the hydraulic oil cylinder and a part of the cabin frame are arranged. Through this

Design of the cabin frame, the requirements for a hoistway are significantly affected. In particular, with respect to a basement, additional space must be provided down the elevator shaft to allow the lowest floor to be approached. The use of the known double-decker elevator therefore limits the

architectural possibilities and leads to additional costs. In addition, the structural design of the known biplane elevator must already be considered at an earlier date in the architecture of a building.

Presentation of the invention

The object of the invention is to provide an elevator system in which a design is improved. Specifically, it is an object of the invention to provide an elevator system in which the architectural requirements for a building, in particular the design of a hoistway or the like, are reduced.

The object is achieved by an elevator system according to the invention with the features of claim 1.

The measures listed in the dependent claims advantageous refinements of the claim 1 elevator system are possible. In the embodiment of the elevator system, the

Elevator car carrier, for example, be arranged in an elevator shaft, wherein a drive machine unit

is provided, which serves to actuate the elevator car carrier. As a result, the elevator car carrier is movable along the intended roadway. Here, the

Elevator car carrier to be suspended from a connected to the elevator car carrier traction means. This can be the

Traction means may be performed in a suitable manner via a traction sheave of the drive unit. Here is

to note that such a traction means in addition to the function of transmitting the force or the moment of

Drive unit on the elevator car carrier to operate the elevator car carrier, may also have the function to carry the elevator car carrier. Under one

Operation of the elevator car carrier here is to be understood in particular as lifting or lowering the elevator car carrier with the elevator cars arranged on the elevator car carrier. The elevator car carrier can be guided here by one or more guide rails.

It is advantageous that at least one further hydraulic adjusting element is provided, which together with the

hydraulic adjusting element for adjusting the second elevator car relative to the first elevator car is used.

In this case, the further hydraulic adjusting element is advantageously integrated constructively into the elevator car carrier. Thus, the hydraulic adjusting elements can be configured advantageously as parts of the elevator car carrier. The hydraulic adjusting elements thus serve to build the elevator car carrier. As a result, the number of components required for the

Elevator cab carrier can be reduced. This is a compact and space-saving design possible. Specifically, the first elevator car and the second elevator car can be arranged between the hydraulic adjusting elements. This results in a space-saving design, so that a large part of the cross-section of the intended driving space is available for the elevator cars. This is also an optimization of a height of the

Elevator car carrier possible.

It is also advantageous that the hydraulic

Adjusting elements as length-adjustable side members of the

Elevator car carrier are designed. When the elevator car carrier moves in a direction of travel through the driving space provided for the elevator car carrier, pressure forces acting between the elevator cars can be transmitted at least largely via the hydraulic adjusting elements configured as length-adjustable side members. Here are rigid side members of the

Saved elevator car carrier. As a result, serving as length-adjustable side member hydraulic

Adjustment be made robust, without this leading to an increased space requirement. Thus, the space remaining in the elevator car carrier for the elevator cars becomes even with a robust design of the hydraulic

Adjustment elements not reduced.

Furthermore, it is advantageous that the elevator car carrier has a first cross member to which the first elevator car is attached, and that the first cross member is at least indirectly connected to the hydraulic adjusting elements. Here are the hydraulic adjusting elements

preferably configured in each case from a first element and a second element. The first cross member is then on the one hand with a first element of a hydraulic adjusting element and on the other hand connected to a first element of the other hydraulic adjusting element. Further, it is advantageous that the elevator car carrier has a second cross member to which the second elevator car is attached, and that the second cross member is connected to the hydraulic adjusting elements. Here, the second cross member is connected to a second element of the one hydraulic adjusting element and to a second element of the other hydraulic adjusting element. The first element and the second element of each

hydraulic adjusting element are relative

mutually adjustable to an adjustment of the second

Elevator car relative to the first elevator car too

enable. This allows a distance between the

Elevator cabins are reduced or enlarged. As a result, an adaptation to different floor spacings within a building or the like is possible.

The hydraulic adjusting elements may for example be configured in each case from a bushing with a cylinder bore and an inserted into the cylinder bore piston. The bushing can in this case be designed on one of the elements, while the piston is designed on the other element. The piston is guided in an advantageous manner in the cylinder bore of the bush, so that a high

Stability of the elevator car carrier is achieved.

Specifically, it is advantageous that the elevator car carrier has side shields which are at least partially formed by the hydraulic adjusting elements or in which the hydraulic adjusting elements are integrated. As a result, side shields which serve in particular as side walls can be used be configured of the elevator car carrier. The number of components required for the construction of the elevator car carrier can be optimized in an advantageous manner. As a result, a mass of the elevator car carrier, the of the

Drive unit while driving the

Elevator car carrier with the elevator cabs must be moved through the driving room, to be optimized. Furthermore, a

Total height of the elevator car carrier with respect to a

Driving direction of the elevator car carrier by the intended driving space at least substantially by a length of the arranged parallel to the direction of travel hydraulic

Adjustment elements determined. As a result, an optimization of the overall height of the elevator car carrier is possible. Specifically, the lower, first elevator car can be arranged on the elevator car carrier relatively far down. This will be the

reduced architectural requirements for a building, in particular a hoistway, or the like.

Short description of the drawing

Preferred embodiments of the invention are explained in more detail in the following description with reference to the accompanying drawings. It shows:

Fig. 1 shows an elevator system in a schematic representation according to an embodiment of the invention.

Preferred embodiments of the invention

Fig. 1 shows an elevator system 1 with at least one

Elevator car carrier 2 receiving a first elevator car 3 and a second elevator car 4. Here is the second one

Elevator car 4 arranged above the first elevator car 3. Of the Elevator car carrier 2 is in one for a ride of

Elevator car carrier 2 provided driving compartment 5 movable. For example, the driving compartment 5 may be provided in an elevator shaft of a building. Here, several floors are provided in the building. In each case, two floors of the elevator cabins 3, 4 of the

Elevator car carrier 2 are approached. In this case, a distance 6 between the elevator cars 3, 4 can be changed. For this purpose, the elevator car carrier 2 enables an adjustment of the second elevator car 4 relative to the first elevator car 3. When the second elevator car 4 is adjusted in an adjustment direction 7 relative to the first elevator car 3, the distance 6 is increased. Conversely, at a

Adjustment of the second elevator car 4 relative to the first elevator car 3 in an adjustment direction 8 reduces the distance 6. Due to the structural design of the

Elevator car carrier 2 here is a certain

Preset adjustment within which a change in the distance 6 between the elevator cars 3, 4 is possible.

On the elevator car carrier 2 rollers 9, 10 are provided, around which a traction means 11 is guided. The traction means 11 also runs around a traction sheave 12 a

Drive machine unit 13. According to the current direction of rotation of the drive unit

driven traction sheave 12, the elevator car carrier 2 is moved together with the elevator cars 3, 4 in a direction of travel 14 upwards or in a direction of travel 15 down through the driving compartment 5. Thus, different floors or the like can be approached within the building.

The elevator car carrier 2 has a first cross member 16 and a second cross member 17. The first elevator car 3 is connected to the first cross member 16. Here, the first elevator car 3 stands on the first cross member 16. The second elevator car 4 is connected to the second cross member 17. Here, the second elevator car 4 is on the second

Cross member 17. In addition, a third cross member 18

intended. The first cross member 16 is disposed below the first elevator car 3. The second cross member 17 is arranged between the elevator cars 3, 4, wherein the second cross member 17 under the second elevator car 4th

and there is a free space 19 between the second cross member 17 and a top 20 of the first elevator car 3. The third cross member 18 is disposed above the second elevator car 4. Here, there is a free space 21 between the third cross member 18 and an upper side 22 of the second elevator car 4.

Furthermore, the elevator car carrier 2 has hydraulic

Adjustment elements 25, 26 on. The hydraulic adjusting element 25 comprises a bushing 27, in which a cylinder bore 28 is configured. In addition, the hydraulic includes

Adjustment 25, a piston 29. The piston 29 of the

hydraulic adjusting element 25 is partially in the

Cylinder bore 28 of the socket 27 introduced. As a result, the piston 29 is guided in the cylinder bore 28 of the bush 27. The hydraulic adjusting element 26 has a socket 30. In the socket 30, a cylinder bore 31 is configured. Furthermore, the hydraulic adjusting element 26 comprises a piston 32. The piston 32 is partially inserted into the cylinder bore 31 of the bush 30. As a result, the piston 32 is guided in the cylinder bore 31 of the bush 30.

The pistons 29, 32 define in the cylinder bores 28, 31 of the bushes 27, 30 cylinder chambers 33, 34. The cylinder chambers 33, 34 are filled with a pressurized fluid. In addition, the cylinder chambers 33, 34 are connected to a device 35. The device 35 serves for conveying further pressurized fluid into the cylinder chambers 33, 34, for discharging pressurized fluid from the cylinder chambers 33, 34 and for blocking the cylinder chambers 33,

34. When blocking the cylinder chambers 33, 34 is an inflow or outflow of pressurized fluid from the cylinder chambers 33, 34th

prevented for example via a blocking position of a switching valve. Thus, the amount of pressurized fluid in the

Cylinder chambers 33, 34 are varied and thus the volume of the cylinder chambers 33, 34 are varied. Depending on the amount of pressurized fluid discharged or supplied into the cylinder chambers 33, 34, the pistons 29, 32 travel further into the cylinder bores 28, 31 or become out of them

Cylinder bores 28, 31 moved out. Thus, the second elevator car 4 can be raised in the adjustment direction 7 relative to the first elevator car 3 or in the

Adjustment 8 are lowered. Furthermore, the second elevator car 4 can also be fixed in position relative to the first elevator car 3. Thus, the distance 6 between the elevator cars 3, 4 can be increased, reduced or kept constant.

Thus, advantageously, a positioning of the two elevator cars 3, 4 to each other. This allows an adaptation to different floor distances

be made. For example, partial ceilings may be inserted within a building in order to

Include facilities for air conditioning. In addition, the distance of a basement to the overlying floor may differ from a usual floor space.

Here, there is the advantage that the first elevator car 3 is close to an underside 36 of the elevator car carrier 2 is arranged, thereby reducing the architectural requirements for the elevator shaft. The bottom 36 is in this case by the bottom 36 of the first cross member

16 predetermined.

In an adjustment of the second elevator car 4 relative to the first elevator car 3, the free space 19 is increased or decreased. Here, the elevator car carrier 2 can be designed so that the free space 19 at a minimum distance 6 at least almost disappears. The second cross member

17 is then in the region of the upper side 20 of the first elevator car 3. When adjusting the distance 6 of the free space 21 on the second elevator car 4 is not changed. The space 21 may, for example, for receiving the

Device 35 for controlling the pressurized fluid in the

Cylinder chambers 33, 34 serve. A height of a top 37 of the elevator car carrier 2 is formed in this embodiment by an upper surface 37 of the hydraulic adjusting elements 25, 26. An overall height 40 between the top 37 and the bottom 36 of the elevator car carrier 2 can be optimized in this case. The total height 40 varies with the distance 6. This results in an advantageous ratio of the possible change in distance of the distance 6 to a minimum total height 40, which is given at minimum distance 6. Thus, in a compact design, that is, relatively lower overall minimum height 40, a relatively large stroke can be achieved by varying the distance 6.

The pistons 29, 32 of the hydraulic adjusting elements 25, 26 are connected at their lower ends 41, 42 with the first cross member 16. The lower ends 41, 42 terminate at least substantially with the underside 36 of the first cross member 16. The total height 40 of the elevator car carrier 2 is determined at least substantially by the length 40 of the parallel to the directions of travel 14, 15 arranged hydraulic adjusting elements 25, 26. Thus, the hydraulic adjusting elements 25, 26 can be designed optimized with respect to a maximum stroke. Thus, a large adjustment is possible. A pressure fluid reservoir of the device 35 may be arranged in the free space 21 in an advantageous manner.

The cross members 16, 17, 18 of the elevator car carrier 2 are connected to each other via the hydraulic adjusting elements 25, 26. As a result, the hydraulic adjusting elements 25, 26 are structurally integrated into the elevator car carrier 2. In particular, separate, rigid longitudinal struts can be saved.

In this embodiment, the second cross member 17 and the third cross member 18 with the bushes 27, 30 of the hydraulic adjusting elements 25, 26 are connected. The

hydraulic adjusting elements 25, 26 are here as

Side shields designed between which the elevator cars 3, 4 are arranged. As a result, the hydraulic adjusting elements 25, 26 can be integrated in an advantageous manner in the structure of the elevator car carrier 2. The hydraulic adjusting elements 25, 26 are designed as length-adjustable side members 25, 26 of the elevator car carrier 2. The arrangement of the hydraulic adjusting elements 25, 26 in addition to the elevator cars 3, 4 and the saving of rigid side members of the elevator cabins 3, 4 each available space in the elevator car carrier 2 is optimized.

Specifically, there is a good ratio of the size of the

Elevator cabins 3, 4 with respect to a cross-sectional area of the driving space 5 for the elevator car carrier 2. Thus, together with the optimized overall height 40 results in a compact design of the elevator car carrier 2, in which the space available for the elevator cars 3, 4 is optimized.

When driving the elevator car carrier 2 through the

provided driving space 5, the second elevator car 4 is supported via the second cross member 17 and the hydraulic

Adjusting elements 25, 26 on the first cross member 16 and the rollers 9, 10 from. Here are the hydraulic

Adjusting elements 25, 26 loaded in an advantageous manner to pressure. The pressure forces acting on the elevator car carrier 2 between the elevator cars 3, 4 can thus be controlled by the hydraulic adjusting elements 25, 26

be transmitted.

The invention is not limited to those described

Embodiments limited.

Claims

claims

1. Elevator installation (1) with at least one elevator car carrier (2), which can be moved in a driving space (5) provided for driving the elevator car carrier (2), a first one

Elevator cab (3) attached to the elevator car carrier (2)

is arranged, and at least a second elevator car (4) above the first elevator car (3) on the

Elevator car carrier (2) is arranged, wherein at least one hydraulic adjusting element (25) is provided, which serves for adjusting the second elevator car (4) relative to the first elevator car (3), and wherein the hydraulic

Adjustment element (25) is structurally integrated into the elevator car carrier (2).

2. Elevator installation according to claim 1,

characterized,

that the hydraulic adjusting element (25) as

adjustable longitudinal member (25) of the elevator car carrier (2) is configured.

3. Elevator installation according to claim 1 or 2,

characterized,

in that the elevator car carrier (2) has a first transverse support (16) to which the first elevator car (3) is fastened, and in that the first transverse support (16) is connected at least indirectly to a first element (29) of the hydraulic adjustment element (25) ,

4. Elevator installation according to claim 3, characterized,

in that the elevator car carrier (2) has a second transverse support (17) to which the second elevator car (4) is fastened, that the second transverse support (17) is connected at least indirectly to a second element (27) of the hydraulic adjustment element (25) and in that the second element (27) of the hydraulic adjusting element (25) for adjusting the second elevator car (4) relative to the first elevator car (3) is adjustable relative to the first element (29) of the hydraulic adjusting element (25).

5. Elevator installation according to claim 4,

characterized,

in that the one element (27) of the hydraulic adjusting element (25) is at least partially designed as a bush (27) and that the other element (29) of the hydraulic

Adjusting element (25) at least partially designed as a piston (29) in a cylinder bore (28) of the

Bushing (27) is guided.

6. Elevator installation according to one of claims 1 to 5,

characterized,

that the hydraulic adjusting element (25) at least

in sections next to the first elevator car (3) and

at least in sections next to the second elevator car (4) is arranged.

7. Elevator installation according to one of claims 1 to 6,

characterized,

in that the elevator car carrier (2) has a side plate (25) which is formed at least partially by the hydraulic adjusting element (25) or in which the

hydraulic adjusting element (25) is integrated.

8. Elevator installation according to one of claims 1 to 7, characterized

in that an overall height (40) of the elevator car carrier (2) with respect to a travel direction (14, 15) of the

Elevator car carrier (2) through the intended driving space (5) substantially by a length (40) of the parallel to the driving direction (14, 15) arranged hydraulic

Adjustment element (25) is determined.

9. Elevator installation according to one of claims 1 to 8,

characterized,

in that at least one further hydraulic adjusting element (26) is provided, which together with the hydraulic adjusting element (25) serves to adjust the second elevator car (4) relative to the first elevator car (3), that the further hydraulic adjusting element (26) constructively into the Elevator car carrier (2) is integrated and that the first elevator car (3) and the second elevator car (4) between the hydraulic adjusting element (25) and the other

hydraulic adjusting element (26) are arranged.

10. Elevator installation according to claim 9,

characterized,

that during a travel of the elevator car carrier (2) in a direction of travel (14, 15) between the elevator cars (3, 4) acting pressure forces at least substantially from the hydraulic adjusting elements (25, 26) are transmitted.

11. Elevator installation according to one of the preceding claims, characterized

the second elevator car (4) is arranged vertically above the first elevator car (3).