DE102022119470A1 - Elevator system with two elevator cars arranged one above the other in an elevator shaft - Google Patents

Abstract

The present invention relates to an elevator system (100, 200, 300) having an elevator shaft (1) extending in a vertical direction (V) with a front wall (1.4), a rear wall (1.3), a first side wall (1.1) and a second Side wall (1.2), an engine room (6) arranged above the elevator shaft (1), a first elevator car (2.1) which can be moved in the elevator shaft (1) by means of a first drive cable (7.1) and a second one in the elevator shaft (1) by means of a second Drive cable (7.2) movable car (2.2), wherein the first car (2.1) and the second car (2.2) are arranged one above the other in the elevator shaft (1), the first car (2.1) being connected by means of the first drive cable (7.1). The first counterweight (11.1) guided on the first side wall (1.1) is connected and the second car (2.2) is connected by means of the second drive cable (7.2) to a second counterweight (11.2) guided on a side wall other than the first side wall (1.1). .

Description

Technical area

The present invention relates to an elevator system having an elevator shaft, an engine room arranged above the elevator shaft, a first car and a second car, the first car and the second car being arranged one above the other in the elevator shaft.

Background of the invention

In an aforementioned elevator system, it is known that the at least two elevator cars in the elevator shaft can be moved independently of one another. Such elevator systems are sold by the applicant under the name “TWIN”. With such systems, a single elevator shaft can be used more efficiently compared to a single-car system, so that waiting times are shortened.

In known elevator systems with both a single car and two cars that can be moved independently of one another in an elevator shaft, it is known that the cars are each connected to a counterweight via drive cables. In elevator systems with two cars, the two counterweights are regularly arranged next to each other on the rear wall of the elevator shaft. Access doors of the cars are usually arranged on the sides of the cars assigned to the front wall, with corresponding access doors also being formed in the front wall on accessible floors. The reason for the arrangement of the counterweights on the rear wall is, on the one hand, that in the little space available in the engine room, where cable drives, suspensions of the drive cables, speed limiters and other components for both cars are housed, the components mentioned cannot be arranged arbitrarily. In addition, the aim has so far been to arrange the two counterweights on the same wall in order to keep the construction effort in the elevator shaft low.

However, with counterweights arranged side by side on the rear wall, they must be made comparatively narrow, so that the counterweights must be built very high and/or very deep to achieve sufficient weight. A very high design of the counterweights disadvantageously requires sufficient space in the vertical direction in the elevator shaft, so that the counterweights can be moved sufficiently high or low in order to reach all floors with the assigned elevator car. A particularly deep design disadvantageously limits the dimensions of the car and thus the space that can be used for passengers or goods to be transported. In particular, components of elevator systems with only one car, which have standardized sizes, cannot be used for such elevator systems with several cars due to a lack of sufficient installation space.

Description of the invention

Based on this situation, it is an object of the present invention to create an elevator system with as much design freedom as possible, especially for the dimensions of the elevator cars.

The object of the invention is achieved by the features of the independent main claim. Advantageous refinements are specified in the subclaims. If technically possible, the teachings of the subclaims can be combined as desired with the teachings of the main and subclaims.

In particular, the problem is solved by an elevator system having an elevator shaft extending in a vertical direction with a front wall, a rear wall, a first side wall and a second side wall, an engine room arranged above the elevator shaft, a first movable in the elevator shaft by means of a first drive cable Elevator car, wherein the first elevator car is assigned a first cable drive in the engine room, and a second elevator car which can be moved in the elevator shaft by means of a second drive cable, wherein the second elevator car is assigned a second cable drive in the engine room, the first elevator car and the second elevator car being one above the other the elevator shaft are arranged, wherein the first car is connected to a first counterweight guided on the first side wall by means of the first drive cable via the first cable drive, and wherein the second car is connected to a different counterweight than the first by means of the second drive cable via the second cable drive Side wall guided second counterweight is connected.

Advantageous aspects of the claimed invention are explained below and preferred modified embodiments of the invention are described further below. Explanations, especially regarding advantages and definitions of features, are essentially descriptive and preferred, but not limiting, examples. If an explanation is limiting, this will be expressly mentioned.

As far as elements are designated using numbering, for example “first Component", "second component" and "third component", this numbering is intended purely for differentiation in the designation and does not represent any dependence of the elements on one another or a mandatory order of the elements. This means in particular that a device is not a "first “Component” must have in order to be able to have a “second component”. The device can also include a “first component” and a “third component”, but without necessarily having a “second component”.

An elevator shaft of the elevator system extends in the vertical direction. The elevator shaft has a clear cross section that is essentially filled by a single car, so that the two cars cannot pass each other. The elevator cars are therefore arranged below or above one another at any time. In particular, appropriate safety devices ensure that the cars cannot collide with one another and are sufficiently spaced from one another at all times. The elevator shaft can also have an alternative position or parking position above a top floor and/or below a bottom floor, into which the corresponding upper or lower car can be moved in order to grant the other car access to the top or bottom floor.

The elevator shaft is defined by a front wall, a rear wall and a first and a second side wall, whereby this designation of the walls serves to distinguish them from one another and to define their geometric relationships to one another and is not an arrangement of the elevator shaft in a building or an assignment of a specific wall of the Elevator shaft to a building wall or to an access point to the elevator system. The front wall lies opposite the rear wall, with the side walls connecting the rear wall and the front wall. Together, the rear wall, the front wall and the side walls define the interior space known as the elevator shaft, which extends vertically and is spatially limited at the bottom by a shaft pit and at the top by a shaft head. All walls are preferably straight and thus form an interior space with a rectangular cross section. Furthermore, guide means, in particular guide rails for the cars, are preferably provided on the rear wall or on the side walls, which cooperate, for example, with the catch frames of the cars in order to guide the respective car in the vertical direction when moving.

Access doors are arranged in the elevator shaft and on corresponding sides of the cars, which together can form access from one floor to a car. Such access doors are particularly preferably designed on the front wall. The car can also have several access doors, for example on a side assigned to the front wall and a side wall, with an access door also being formed on the front wall and the side wall at least on one floor. In particular, an access door can also be provided on the rear wall and on a side assigned to the rear wall of at least one car.

An engine room is understood to be a space above the elevator shaft that is separated from the elevator shaft and is accessible separately and is intended to accommodate drive components of the elevator system. In particular, a cable drive is provided for each car in the engine room. A cable drive is preferably formed with a drive shaft which is frictionally wrapped around by a drive cable, so that the drive cable can be driven by the drive shaft. For example, at least one drive pulley is provided on the drive shaft, in which the drive cable lies. Alternatively, a friction surface can also be provided on the drive shaft as a lateral surface, which is wrapped by a flat, band-shaped drive cable. The drive cable is formed in particular by several cable strands, whereby the cable strands can be designed with a round cross-section or in the form of a band. Furthermore, a respective rope strand or several rope strands is preferably encased together with a friction material or coated by one.

A respective drive cable is preferably attached to a suspension in the engine room or the shaft head with a first end and is guided vertically from there to the associated elevator car. There the drive cable is deflected and in turn guided vertically to the assigned cable drive in the engine room, where it is deflected around the drive shaft and thereby driven. The drive cable then runs vertically from the cable drive to the associated counterweight, to which it is attached with a second end.

A counterweight is usually designed as a flat body, i.e. with the smallest possible depth, which is guided as close as possible to a wall of the elevator shaft, so that the remaining cross section of the elevator shaft remains for the movement of the elevator cars and the elevator cars are designed accordingly with the largest possible floor plan in order to accommodate as many people or bulky loads as possible. Accordingly, the counterweight is designed with comparatively large dimensions in height and/or width, so that it achieves a mass that is... The area of the empty mass of the assigned car is or above.

According to the aspect of the invention now described, it is provided in the elevator system that at least one of the two counterweights is guided on one of the side walls, while the other counterweight is guided on one of the other walls. This is based on the theory of separating the two counterweights from each other and arranging them on different walls of the elevator shaft in order to achieve as much design freedom as possible for each counterweight and thus for the entire elevator system. In particular, compared to elevator systems in which both counterweights are guided on the rear wall, the elevator cars can be designed with a greater depth, i.e. a greater extent between the front wall and the rear wall, if only one or no counterweight is arranged on the rear wall, without This results in the disadvantages mentioned above. It is particularly advantageous in an elevator system in which the second counterweight is guided on a different wall than the first counterweight, each counterweight can be formed using the entire width of the respective wall. The counterweights can then be designed with a reduced height and/or depth and can therefore be adapted more freely to structural conditions. Furthermore, necessary guides for a single counterweight on a shaft wall can also be designed to be simpler than guides for holding two counterweights on the same shaft wall. In particular, such a design of an elevator system makes it possible for more standard components, in particular standard components that are also used in elevator systems with only one car, to be used. In one embodiment, for example, a standardized car can be used. In particular, the dimensions of the elevator shaft can also be designed with more degrees of freedom in accordance with the architectural conditions of a building and, for example, with a particularly small depth between the front wall and the rear wall, without having to use a car with an excessively small depth.

In a preferred embodiment, the second car is connected to a second counterweight guided on the rear wall by means of the second drive cable via the second cable drive. The second counterweight guided on the rear wall then has, for example, a width that uses the entire width of the rear wall and can accordingly be designed to be particularly flat without having to have an excessively high height. In this way, the restriction of the cross-section of the elevator shaft that can be used for the elevator cars is divided by the counterweights into the depth between the front and rear walls and the width between the two side walls.

In this embodiment, the first car and the second car have access doors at least on the sides assigned to the front wall. Accordingly, the elevator shaft has a corresponding access door on the front wall on at least one floor. The cars or at least one car can also have additional access doors on a side assigned to the second side wall, in which case an access door is then provided on the side wall on at least one floor. Particularly preferably, the elevator shaft has an access door on at least one floor, both on the front wall and on the second side wall.

In an alternative embodiment, the second car is connected to a second counterweight guided on the second side wall by means of the second drive cable via the second cable drive. The second counterweight guided on the second side wall then has, for example, a width that uses the entire width of the second side wall and can accordingly be designed to be particularly flat without having to have an excessively high height. In this way, the restriction of the cross-section of the elevator shaft that can be used for the elevator cars is reduced by the counterweights, particularly with regard to the depth between the front and rear walls. The elevator car can therefore be designed over the entire depth of the elevator shaft and can therefore itself have a particularly large depth. Distributing the counterweights across the two side walls also makes it possible to design the elevator shaft with the smallest possible depth and corresponding width if architectural conditions require this.

In this embodiment, the first car and the second car have access doors on sides assigned to the front wall and/or on sides assigned to the rear wall. Accordingly, the elevator shaft has a corresponding access door on at least one floor on the front wall and on at least one floor on the rear wall. Particularly preferably, the elevator shaft has an access door on both the front wall and the rear wall on at least one floor.

According to one embodiment, the first car and the second car can each be moved along the elevator shaft in at least one guide rail. Such a guide rail is, for example, on the rear wall or arranged on a side wall. In one embodiment, two guide rails are provided, in particular on opposite walls of the elevator shaft, in which the first car and the second car can each be moved in a guided manner. The elevator cars are guided particularly safely and stably using the two opposing guide rails. The cars preferably have catch frames or are accommodated in such catch frames. The catch frames particularly preferably have guide means which engage in the guide rails and are guided there. A catch frame can be designed, for example, as a backpack frame, with a backpack frame being arranged on the car in particular on a side of a car facing the rear. A catch frame can also be designed as a central frame that surrounds the car, with the catch frame extending in particular on the sides of the respective car that are assigned to the side walls.

According to a further embodiment, the elevator system has a first speed limiter assigned to the first car and a second speed limiter assigned to the second car, wherein the first speed limiter and / or the second speed limiter are arranged in the elevator shaft. In particular, the speed limiters are arranged in a shaft head and/or a shaft pit. Such speed limiters are intended to detect unintentional overspeeding of a car and then trigger emergency braking. For this purpose, a loop of a safety rope connected to the respective car is guided around deflection rollers at an upper end and a lower end of the elevator shaft, with excess speed being detected based on the centrifugal forces occurring on a deflection roller. By arranging the first and/or second speed limiter in the elevator shaft, it is not necessary to arrange the respective speed limiter or components thereof in the engine room. In this way, space is gained in the engine room in order to arrange cable drives and suspensions more freely. In particular, this freer arrangement enables a favorable positioning of the cable drives and the suspensions corresponding to the positions of the counterweights and the cable guides on the cars. For example, the cable guide between the suspension, car, cable drive and counterweight can be selected as simply as possible, for example by aligning components in alignment with one another, so that additional deflections and guides for the drive cables are unnecessary.

In one embodiment of the elevator system it is provided that the first elevator car has a first catch frame, wherein the first drive cable is guided horizontally on the first catch frame between two guide rollers in a first transverse direction and the first drive cable runs vertically from one of the guide rollers to a first suspension and from the other of the guide rollers is guided vertically to the first cable drive. In this way, the drive cable can be attached to the car decentrally to the center of the car and correspondingly guided decentrally from the cable drive to the car in the vertical direction. In addition, an additional guide for the car is created, as the car cannot twist relative to the drive cable.

In a corresponding embodiment it is provided that the second car has a second catch frame, the second drive cable being guided horizontally on the second catch frame between two guide rollers in a second transverse direction and the second drive cable being guided vertically from one of the guide rollers to a second suspension and from the other of the guide rollers is guided vertically to the second cable drive. In this way, the same advantages arise on the second car as with a previously described arrangement on the first car. Particularly preferably, the transverse guidance between two guide rollers on the lower of the two cars can ensure that the drive cable of the lower car is guided vertically in a decentralized manner in such a way that it runs laterally along the upper car.

In an embodiment with the above-described design of both the first car and the second car, it is particularly preferably provided that the first transverse direction and the second transverse direction form an angle to one another. In this way, the first drive cable and the second drive cable run vertically at a distance from one another in the elevator shaft. Accordingly, the components assigned to a respective car are also spaced apart from one another in the engine room, so that they can be arranged favorably. For each car, the suspension and the cable drive are arranged in the engine room in accordance with the transverse direction on the catch frame of the car.

In yet another embodiment of the elevator system, the first car and/or the second car are set up to be moved in the elevator shaft at up to 3 m/s. Below this speed, the respective car can be moved stably using the drive cable and the guide rails, with the support cable between the car and the counterweight maintaining sufficient tension at all times. With increasing beyond that Speed, i.e. if the first car and/or the second car are set up in an alternative embodiment to be moved in the elevator shaft at more than 3 m/s, a lower rope tensioning device can be provided on the respective car in order to provide additional stabilization for to create the elevator car. A lower cable tensioning device connects the car to the counterweight by means of a tensioned lower cable, the lower cable being deflected for tensioning via a tensioning roller located below the car, for example in the shaft pit, so that there is one between the car and the counterweight in both the upward and downward directions Tensile force exists and at least one of the supporting cable and the lower cable is sufficiently tensioned at all times. On the upper car, an attachment of a lower cable to the car can be guided to the outside, for example via guide rollers arranged on the catch frame, so that the lower cable is guided laterally past the lower car, as is the support cable of the lower car on the upper car is led past.

In the elevator system described above, as many standard components as possible can preferably be used due to the flexible space division between the depth and width of the elevator shaft. In one embodiment, a standardized car is used. Such a car particularly preferably has a depth of at least 2100 mm, in particular exactly 2100 mm. Such standard parts offer the advantage of standardized production, reduced planning effort for an elevator system and correspondingly low costs.

Brief description of the drawings

The invention is explained in more detail below with reference to the accompanying drawings using preferred exemplary embodiments. The wording figure is abbreviated to Fig. in the drawings.

• 1 eine schematische Ansicht einer Aufzugsanlage gemäß einem ersten bevorzugten Ausführungsbeispiel;
• 2a eine schematische Draufsicht auf den Aufzugschacht bei einer Aufzugsanlage gemäß einem zweiten bevorzugten Ausführungsbeispiel;
• 2b eine schematische Draufsicht auf den Triebwerksraum bei einer Aufzugsanlage gemäß dem zweiten bevorzugten Ausführungsbeispiel;
• 3a eine schematische Draufsicht auf den Aufzugschacht bei einer Aufzugsanlage gemäß einem dritten bevorzugten Ausführungsbeispiel;
• 3b eine schematische Draufsicht auf den Triebwerksraum bei einer Aufzugsanlage gemäß dem dritten bevorzugten Ausführungsbeispiel;

Show in the drawings

• 1 a schematic view of an elevator system according to a first preferred embodiment;
• 2a a schematic top view of the elevator shaft in an elevator system according to a second preferred exemplary embodiment;
• 2 B a schematic top view of the engine room in an elevator system according to the second preferred embodiment;
• 3a a schematic top view of the elevator shaft in an elevator system according to a third preferred exemplary embodiment;
• 3b a schematic top view of the engine room in an elevator system according to the third preferred embodiment;

Detailed description of the exemplary embodiments

The exemplary embodiments described are merely examples that can be modified and/or supplemented in a variety of ways within the scope of the claims. Each feature described for a particular embodiment may be used alone or in combination with other features in any other embodiment. Each feature that is described for an embodiment of a particular claim category can also be used in a corresponding manner in an embodiment of another claim category.

1 shows an elevator system 100 in a first embodiment in a view from the direction of a front wall. The elevator system 100 has an elevator shaft 1, which extends in a vertical direction V and has a first side wall 1.1, a second side wall 1.2, a rear wall 1.3 and a front wall 1.4, not shown. The elevator shaft 1 is closed in the vertical direction V by a shaft pit 1.5 and a shaft head 1.6. A first car 2.1 and a second car 2.2 are arranged in the elevator shaft 1, with the first car 2.1 being arranged above the second car 2.2. A respective car 2.1, 2.2 has an access door 3.1, 3.2 and is held in a catch frame 4.1, 4.2. The catch frames 4.1, 4.2 each engage in guide rails 5.1, 5.2 with guide means (not shown) and are guided along the guide rails 5.1, 5.2 in the elevator shaft 1. An engine room 6 is arranged above the elevator shaft 1.

To move the cars 2.1, 2.2 in the elevator shaft 1 in the vertical direction V, the cars 2.1, 2.2 are driven via drive cables 7.1, 7.2. A corresponding first drive cable 7 is shown in its entirety to illustrate the first car 2.1, with a second drive cable 7.2 assigned to the second car 2.2 being only partially shown for a better overview.

The first drive cable 7.1 is attached with a first end to a first suspension 8.1 arranged in the engine room 6. From the first suspension 8.1, the first drive cable 7.1 is in the vertical direction V downwards to the first car 2.1 guided. Guide rollers 9.1, 9.2 are arranged on the first catch frame 4.1, with the first drive cable 7.1 coming from the first suspension 8.1 being deflected in the horizontal direction H on the first guide roller 9.1 and being guided transversely to the second guide roller 9.2. At the second guide roller 9.2, the first drive cable 7.1 is again deflected in the vertical direction V and guided to a first cable drive 10.1. The first drive cable 7.1 wraps around the first cable drive 10.1 so that it lies against it in a frictional manner and can be driven by it. From the first cable drive 10.1, the first drive cable 7.1 is then guided to a first counterweight 11.1, the first counterweight 11.1 being guided on the first side wall 1.1. In the same way as the first drive cable 7.1, a second drive cable 7.2 connects the second car 2.2 via a second cable drive 10.2 with a second counterweight 11.2, with only the connection between the second cable drive 10.2 and the second counterweight 11.2 being shown here. The second counterweight 11.2 is guided on the rear wall 1.3 of the elevator shaft 1.

2a shows a top view of the elevator shaft 1 of an elevator system 200 in a second embodiment. The second car 2.2, which is the upper car here, is shown in the elevator shaft 1, the second car 2.2 having the second access door 3.2 on a side facing the front wall 1.4. An access door 12 which forms an access together with the second access door 3.2 is formed on the front wall 1.4.

The second car 2.2 has on its second catch frame 4.1 a first guide roller 9.1 and a second guide roller 9.2, between which the second drive cable 7.2 in a second transverse direction Q.2 corresponding to the 1 The drive cable guide described is guided transversely. A part of the first catch frame 4.1 of the lower first car 2.1, which is actually covered by the second car 2.2, is also shown. The first catch frame 4.1 also has a first guide roller 9.1 and a second guide roller 9.2, between which the first drive cable 7.1 in a first transverse direction Q.1 corresponding to the 1 The drive cable guide described is guided transversely. The guide rollers 9.1, 9.2 arranged on the first catch frame 4.1 are placed sufficiently far outwards so that the first drive cable 7.1, which runs vertically upwards from there, is guided past the second car 2.2. The first transverse direction Q.1 and the second transverse direction Q.2 form an angle W to one another.

The first car 2.1 is connected to a first counterweight 11.1 guided on the first side wall 1.1, while the second car 2.2 is connected to a second counterweight 11.2 guided on the rear wall 1.3. 2 B shows a top view of the engine room 6 of the elevator system 200. In the engine room 6, a first suspension 8.1 is arranged above the first guide roller 9.1 of the first catch frame 4.1. Furthermore, a first cable drive 10.1 is arranged above the second guide roller of the first catch frame 4.1 and in the area of the first side wall 1.1 above the first counterweight 11.1. Accordingly, a second suspension 8.2 and a second cable drive 10.2 are arranged above the guide rollers 9.1, 9.2 of the second catch frame 4.2. The angle W between the catch frames 4.1, 4.2 results in an arrangement of the suspensions 8.1, 8.2 and the cable drives 10.1, 10.2 in the engine room 6, which allows all components to be accommodated next to one another.

The 3a and 3b show representations of an elevator system 300 in a third embodiment, which corresponds to the representations in the 2a , 2 B correspond and are therefore only described with regard to the differences to the elevator system 200. The first counterweight 11.1 is arranged on the first side wall 1.1 and the second counterweight 11.2 on the second side wall 1.2. The second car 2.2 extends over the entire depth between the front wall 1.4 and the rear wall 1.3 and, in addition to the second access door 3.2 on the side facing the front wall 1.4, has a third access door 3.3 on the side facing the rear wall 1.3, which has an access door 13 in the Rear wall 1.3 forms access to the second car 2.2.

In the engine room 6 of the elevator system 300, the first suspension 8.1 is arranged below the elevated second cable drive 10.2 and the second suspension 8.2 is arranged below the elevated first cable drive 10.1.

Reference symbol list

1

elevator shaft

1.1

first side wall

1.2

second side wall

1.3

Back wall

1.4

front wall

1.5

shaft pit

1.6

shaft head

2.1

first car

2.2

second car

3.1

first access door

3.2

second access door

3.3

third access door

4.1

first catch frame

4.2

second catch frame

5.1

first guide rail

5.2

second guide rail

6

engine room

7.1

first drive rope

7.2

second drive cable

8.1

first suspension

8.2

second suspension

9.1

first leadership role

9.2

second leadership role

10.1

first cable drive

10.2

second cable drive

11.1

first counterweight

11.2

second counterweight

12

Access door

13

Access door

100

Elevator system

200

Elevator system

300

Elevator system

H

horizontal direction

Q.1

first transverse direction

Q.2

second transverse direction

v

vertical direction

W

angle

Claims (13)

Having elevator system (100, 200, 300). an elevator shaft (1) extending in a vertical direction (V) with a front wall (1.4), a rear wall (1.3), a first side wall (1.1) and a second side wall (1.2); an engine room (6) arranged above the elevator shaft (1); a first car (2.1) which can be moved in the elevator shaft (1) by means of a first drive cable (7.1), the first car (2.1) being assigned a first cable drive (10.1) in the engine room (6); and a second car (2.2) which can be moved in the elevator shaft (1) by means of a second drive cable (7.2), the second car (2.2) being assigned a second cable drive (10.2) in the engine room (6); where the first car (2.1) and the second car (2.2) are arranged one above the other in the elevator shaft (1); where the first car (2.1) is connected to a first counterweight (11.1) guided on the first side wall (1.1) by means of the first drive cable (7.1) via the first cable drive (10.1); and where the second car (2.2) is connected by means of the second drive cable (7.2) via the second cable drive (10.2) to a second counterweight (11.2) guided on a side wall other than the first side wall (1.1). Elevator system (100, 200, 300). Claim 1 , wherein the second car (2.2) is connected to a second counterweight (11.2) guided on the rear wall (1.3) by means of the second drive cable (7.2) via the second cable drive (10.2). Elevator system (100, 200, 300). Claim 2 , wherein the first car (2.1) and the second car (2.2) have access doors (3.1, 3.2) at least on the sides assigned to the front wall (1.4). Elevator system (100, 200, 300). Claim 1 , wherein the second car (2.2) is connected to a second counterweight (11.2) guided on the second side wall (1.2) by means of the second drive cable (7.2) via the second cable drive (10.2). Elevator system (100, 200, 300). Claim 4 , wherein the first car (2.1) and the second car (2.2) have access doors (3.1, 3.2, 3.3) on sides assigned to the front wall (1.4) and/or on sides assigned to the rear wall (1.3). Elevator system (100, 200, 300) according to one of the preceding claims, wherein the first car (2.1) and the second car (2.2) can each be moved along the elevator shaft (1) guided in at least one guide rail (5.1, 5.2). Elevator system (100, 200, 300) according to one of the preceding claims, comprising a first speed limiter assigned to the first car (2.1); and a second speed limiter assigned to the second car (2.2); where the first speed limiter and/or the second speed limiter are arranged in the elevator shaft (1). Elevator system (100, 200, 300) according to one of the preceding claims, wherein the first car (2.1) has a first catch frame (4.1); where the first drive cable (7.1) is guided horizontally on the first catch frame (4.1) between two guide rollers (9.1, 9.2) in a first transverse direction (Ql); and wherein the first drive cable (7.1) is guided vertically from one of the guide rollers (9.1) to a first suspension (8.1) and from the other of the guide rollers (9.2) vertically to the first cable drive (10.1). Elevator system (100, 200, 300) according to one of the preceding claims, wherein the second car (2.2) has a second catch frame (4.2); where the second drive cable (7.2) is guided horizontally on the second catch frame (4.2) between two guide rollers (9.1, 9.2) in a second transverse direction (Q.2); and where the second drive cable (7.2) is guided vertically from one of the guide rollers (9.1) to a second suspension (8.2) and from the other of the guide rollers (9.2) vertically to the second cable drive (10.2). Elevator system (100, 200, 300). Claim 8 and 9 , whereby the first transverse direction (Ql) and the second transverse direction (Q.2) form an angle (W) to one another. Elevator system (100, 200, 300) according to one of the preceding claims, wherein the first car (2.1) and/or the second car (2.2) are designed to be moved in the elevator shaft (1) at up to 3 m/s . Elevator system (100, 200, 300) according to one of the Claims 1 until 10 , wherein the first car (2.1) and/or the second car (2.2) are set up to be moved in the elevator shaft (1) at more than 3 m/s, wherein the first car (2.1) and/or the second Car (2.2) has a lower rope tensioning device. Elevator system (100, 200, 300) according to one of the preceding claims, wherein the first car (2.1) and/or the second car (2.2) have a depth of at least 2100 mm.

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