DE102022117613A1 - Elevator system with sensor device for determining the position, speed and/or acceleration of a car - Google Patents

Abstract

The present invention relates to an elevator system (100), comprising at least one elevator shaft (1) extending along a shaft direction (S), at least one elevator car (2) which can be moved along the elevator shaft (1) in the shaft direction (S), and a sensor device (4 ) for determining the position, speed and / or acceleration of the car (2), the sensor device (4) having a code tape (4.1) extending along the elevator shaft (1) in the shaft direction (S) and a code tape (4.1) on the at least one car (2 ) arranged sensor (4.2) for reading out the code tape (4.1), the sensor (4.2) being set up to read out the code tape (4.1) in a first transverse direction (Q.1) extending perpendicular to the shaft direction (S). to be arranged in a defined position relative to the code tape (4.1), the code tape (4.1) being arranged in a stationary manner on the elevator shaft (1) in the first transverse direction (Q.1), and wherein the sensor (4.2) on the elevator car ( 2) is arranged to be stationary in the shaft direction (S) and movable at least in the first transverse direction (Q.1).

Description

Technical area

The present invention relates to an elevator system, comprising at least one elevator shaft extending along a shaft direction, at least one elevator car which can be moved along the elevator shaft in the shaft direction, and a sensor device for determining the position, speed and/or acceleration of the elevator car, wherein the sensor device is located along the Elevator shaft has a code tape extending in the shaft direction and a sensor arranged on the at least one elevator car for reading out the code tape, the sensor being set up to be arranged in a defined position relative to the code tape for reading out the code tape in a first transverse direction extending perpendicular to the shaft direction be.

The present invention further relates to a sensor device for determining the position, speed and/or acceleration of a car in such an elevator system.

Furthermore, the present invention relates to a car for such an elevator system with at least one sensor for reading the code tape.

Background of the invention

Elevator systems are currently known in which sensor devices are provided for detecting the position and/or speed of a car in an elevator shaft. For this purpose, for example, code tapes are arranged in the elevator shaft, which have position markings on a code surface, with a sensor on the car being moved along the code tape and detecting a position marking specific to its current position at any time, so that the position or as a derivative of the Position the speed of the car is recorded. Such markings can be optical markings such as barcodes, QR codes or the like, in which case the sensor is an optical sensor. Alternatively, the markings can be, for example, magnetic markings or markings that can be detected using ultrasound, with the sensors then being designed accordingly.

In such sensor devices with a code tape and a sensor for reading out the code tape, there is a fundamental need for the sensor to be consistently positioned in a defined position relative to the code tape, more precisely relative to the code area, in order to ensure reliable reading of the code tape.

For this purpose, it is known from the prior art to arrange the code tape movably in the elevator shaft and to align it with a passing sensor, for example by means of a guide connected to the sensor. Out of EP 3 519 335 B 1, for example, it is known to hang the code tape on holding elements and to apply a clamping force to a contact area of the holding element by means of clamping elements. A detection device arranged on a car then has a guide structure which is set up to lift the code tape against the tensioning force and temporarily positions the code tape on a stationary sensor as it drives past, the tensioning elements returning the code tape to its starting position when the car moves away from the removed. The disadvantage is that the holding elements and clamping elements provided are complex and often have to be arranged along the elevator shaft at sufficiently short intervals in order to ensure reliable reading of the code tape over the entire length of the shaft.

Description of the invention

Based on this situation, it is an object of the present invention to propose, in a simplified manner, a secure reading of a code tape using a sensor in a previously described elevator system.

The object of the invention is achieved by the features of the independent main claims. 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 object is achieved according to a first aspect of the invention by an elevator system, comprising at least one elevator shaft extending along a shaft direction, at least one elevator car which can be moved along the elevator shaft in the shaft direction, and a sensor device for determining the position, speed and/or acceleration of the elevator car , wherein the sensor device has a code tape extending along the elevator shaft in the shaft direction and a sensor arranged on the at least one elevator car for reading the code tape, the sensor being set up to read the code tape in a first transverse direction extending perpendicular to the shaft direction arranged in a defined position on the code tape to be net, wherein the code tape is arranged stationary on the elevator shaft in the first transverse direction, and wherein the sensor is arranged on the elevator car in a stationary manner in the shaft direction and movable at least in the first transverse direction.

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 does not have to have a “first component” 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”. Several units of an element of a single numbering can also be provided, for example several “first components”.

A car of the elevator system is intended for transporting people and/or goods to be transported and, in one embodiment, is held on a support cable or can be moved by means of the support cable and is guided on at least one guide rail in the elevator shaft. Alternatively, the elevator car is held in the elevator shaft by means of a linear motor or can be moved by means of the linear motor and is guided on at least one guide rail in the elevator shaft.

An elevator shaft of the elevator system preferably extends in a vertical direction as the shaft direction, for example in a building. Alternatively or additionally, an elevator shaft extends in a horizontal direction as the shaft direction, for example in a building. In one embodiment, the elevator system has at least a partial section of the elevator shaft in which it extends vertically and at least a partial section in which the elevator shaft extends horizontally, wherein the elevator car can move from the vertically extending section into the horizontally extending section. In such an embodiment, the car preferably has a first sensor device for the vertical shaft section, the sensor of which is arranged on the car in accordance with the vertical direction as the shaft direction, and a second sensor device for the horizontal shaft section, the sensor of which is arranged on the car in accordance with the horizontal direction as the shaft direction is arranged.

Insofar as an arrangement of a first element is referred to as stationary in one direction or as non-rotatable about an axis on a second element, the first element is not movable or rotatable relative to the second element in this direction or about this axis, but can only can be moved or rotated together with the second element. Insofar as the sensor is arranged stationary on the car in the shaft direction, the sensor is not movable in the shaft direction relative to the car, but is moved along the shaft together with the car. To the extent that the code tape is arranged stationary on the elevator shaft in one direction, it is not movable in this direction relative to the elevator shaft. However, it will deform with the elevator shaft if it is deformed by wind loads in very tall buildings, for example. Insofar as a first element is referred to as being arranged in a stationary manner on a second element, without this being explicitly related to a direction or axis, the first element is to be understood as being arranged in a stationary manner on the second element in all directions and with respect to all axes.

To the extent that an arrangement of a first element is said to be movable in one direction or rotatable about an axis on a second element, the first element can carry out a movement or rotation relative to the second element without the second element being moved or rotated or has to move or turn to do so. In particular, a bearing is provided between the first and second elements in order to ensure mobility or rotation.

The sensor is opposite the code area of the code tape and has a reading direction pointing towards the code area, which is in particular a wide area of the code tape. In order to safely read out the code tape by the sensor, the sensor should be consistently positioned in a defined position relative to the code tape, more precisely relative to the code area, that is, it should only deviate from this defined position to a small, tolerable extent. Depending on the sensor and code tape used, such a defined position may be necessary in the first transverse direction, in a second transverse direction or with respect to an angle between the sensor and code tape. Such a position is particularly defined in the first transverse direction Distance that should be as constant as possible and only fluctuate within small limits. Furthermore, consistent positioning in a second transverse direction, which is perpendicular to the first transverse direction and the shaft direction, may also be necessary if a marking and/or a sensor is used which requires such positioning. Ultimately, an angle between sensor and code tape that remains constant or at least within narrow limits may also be required. The angle here is understood to be the angle between a surface normal of the code surface and the reading direction of the sensor. If, for example, an optical marking with an optical sensor is used, the above-described deviations in the position of the sensor relative to the code tape in the first transverse direction, the second transverse direction and/or with respect to the angle between the sensor and the code tape are accompanied by distortions and differences in size of the markings detected by the sensor , which make it difficult or even impossible to reliably determine position, speed and/or acceleration.

To ensure the defined position of the sensor relative to the code tape, appropriate means for determining the position of the sensor are necessary, since the position of the elevator car relative to the elevator shaft and the positioning of the code tape in the elevator shaft are subject to inaccuracies. These inaccuracies arise, for example, from the movement of the elevator car and/or from the way the code tape is held in the elevator shaft. Said means can be, for example, guides, or the position of the sensor can be controlled by an actuator so that the sensor tracks the code tape.

With the above-described solution to the problem according to the first aspect of the invention, there is the advantage that the reliable determination of the position of the sensor relative to the code tape in the first transverse direction can be achieved in that the sensor, which is movable in the first transverse direction, is attached to a sensor that is stationary in the first transverse direction Code tape follows, so the sensor tracks the code tape. In this way, good positional accuracy between the sensor and the code tape can be achieved in the sensor device by means of appropriate means for determining the position of the sensor in the first transverse direction, while complex movable storage of the code tape along the elevator shaft in the first transverse direction can be dispensed with. In contrast, a storage of the sensor that is movable in the first transverse direction can be achieved easily and with little effort. With such a sensor, corresponding means are then provided for determining the position of the sensor relative to the code tape in the first transverse direction, such as a guide which is arranged on the code tape.

According to a further aspect of the invention, the sensor is set up to be arranged in a defined position relative to the code tape for reading out the code tape in a second transverse direction extending perpendicular to the shaft direction and perpendicular to the first transverse direction, the code tape being stationary in the second transverse direction is arranged on the elevator shaft, and wherein the sensor is arranged on the car to be movable in the second transverse direction. In this way, the sensor can be tracked on the code tape with appropriate means for determining the position of the sensor in the second transverse direction, while the code tape is also arranged in a stationary manner in the elevator shaft in the second transverse direction, with the movable arrangement of the sensor in turn the second transverse direction is simplified compared to an arrangement of the code tape along the elevator shaft that is movable in the second transverse direction. Corresponding means for determining the position of the sensor relative to the code tape in the second transverse direction can in turn be provided, such as a guide.

According to yet another aspect of the invention, the sensor is set up to be arranged at a defined angle to the code tape for reading out the code tape, the code tape being arranged on the elevator shaft in a rotationally fixed manner about a first axis of rotation parallel to the shaft direction, and wherein the sensor is on the car is rotatably arranged about a second axis of rotation parallel to the first axis of rotation. In this way, the sensor on the code tape can also be tracked with respect to the angle while the code tape is arranged in a rotationally fixed manner in the elevator shaft, the rotatable arrangement of the sensor being simplified compared to a rotatable arrangement of the code tape along the elevator shaft. Appropriate means for determining the angle between the sensor and the code tape can in turn be provided, such as a guide.

Means for determining the position of the sensor relative to the code tape are preferably provided, which determine the position of the sensor relative to the code tape in the first and/or second transverse direction and/or the angle between the sensor and the code tape. The means preferably determine both the position of the sensor relative to the code tape in the first transverse direction, the second transverse direction and the angle between the sensor and the code tape simultaneously. It can also be provided that the code tape in the second transverse direction or rotatable about the first axis of rotation, so that the sensor follows the code tape in the first transverse direction, for example, while the code tape is aligned in the second transverse direction and / or in its angular position on the sensor. Described means for determining the position of the sensor relative to the code tape can be, for example, guides such as guide rails. Such guide rails are then arranged on the code tape or connected to it. Tracking of the sensor in the first transverse direction, the second transverse direction and/or with respect to the angle between the sensor and the code tape can also be achieved, for example, by a sensor-side actuator which controls the position of the sensor and thereby detects the position of the code tape in a suitable form to track the sensor to the code tape.

According to one aspect of the invention, a sensor receptacle is arranged in a stationary manner on the car and the sensor is arranged on the sensor receptacle. The mobility or rotatability of the sensor can then be achieved by suitable means between the sensor and the sensor holder, such as appropriate bearings, while the sensor holder can be connected to the car using simple connecting means. The provision of a sensor device is then possible in a simple manner on any elevator car and can be retrofitted, in particular, to existing elevator systems.

In one embodiment, at least a first stop is provided for limiting the mobility of the sensor in the first transverse direction. Two such first stops are particularly preferably provided, between which the sensor can move in the first transverse direction. In this way, protection against loss of the sensor and/or against collision of the sensor with other elements of the elevator system is advantageously achieved in the first transverse direction. In addition, a connection of a supply and/or signal line to the sensor can be secured against damage by one or two first stops.

In the same way, at least one second stop is preferably provided for limiting the mobility of the sensor in the second transverse direction. Two such second stops are particularly preferably provided, between which the sensor can move in the second transverse direction. In this way, protection against loss of the sensor and/or against collision of the sensor with other elements of the elevator system is advantageously achieved in the second transverse direction. In addition, a connection of a supply and/or signal line to the sensor can be secured against damage by one or two first stops.

Furthermore, at least one third stop is preferably provided to limit the rotation of the sensor about the second axis of rotation. Two such third stops are particularly preferably provided, between which the sensor can rotate about the second axis of rotation. In this way, a connection of a supply and/or signal line to the sensor can advantageously be secured against damage.

According to yet another aspect of the invention, the sensor is held in the shaft direction between two traction means, the traction means extending in the shaft direction. Such traction means can be, for example, ropes, wires or spring elements and are largely rigid, particularly in the shaft direction under tensile load, but flexible and rotatable in the first and second transverse directions. A suspension of the sensor is therefore achieved in which the sensor is movable in the first and second transverse directions and can be rotated about the second axis of rotation while it is fixed in the shaft direction. Such a suspension is particularly simple and inexpensive. The mobility or rotation of the sensor is limited by the flexibility of the traction means, so that, depending on the design of the traction means, the above-described stops can be dispensed with. The suspension between two traction means can alternatively also be combined with at least a first stop, at least a second stop and/or at least a third stop. The traction means can also have elasticity, especially if the traction means are formed by spring elements. The traction means then counteract a change in position with a progressive restoring force.

According to a further aspect of the invention, the sensor is held on the car by means of at least one plain bearing or roller bearing. Such sliding or rolling bearings can also easily achieve a stationary arrangement of the sensor in the shaft direction and a movable arrangement in the first and/or second transverse direction as well as a rotatable arrangement about the second axis of rotation. A plain or rolling bearing can in particular be a rotary and/or translational bearing.

Particularly preferably, means for determining the position of the sensor are arranged on the code tape, wherein the means for determining the position of the sensor determine the position of the sensor in the first transverse direction, the second transverse direction and/or the angular position of the sensor about the second axis of rotation. These are particularly preferred Means trained as leadership. The guide is connected to the code tape in such a way that the position of the sensor relative to the code tape is determined with sufficient reliability by guiding the sensor. In particular, there is a rigid connection between the code tape and the guide. Particularly preferably, the code tape is an integral part of the guide or the guide is an integral part of the code tape or a code tape arrangement. Alternatively, a guide can also be rigidly connected to the sensor and guided on the code tape. Furthermore, alternatively, the means are designed as an actuator on the sensor, the position of the code tape being determined using suitable means and the sensor being tracked to the code tape via the actuator.

The code tape is further preferably arranged in the elevator shaft by means of several code tape holders. In this way, the position of the code tape is sufficiently determined and can be arranged in a simple manner in the elevator shaft, with precise position determination being achieved at least in the first transverse direction by the mobility or rotatability of the sensor.

The object is also achieved according to a further aspect of the invention by a sensor device for a previously described elevator system, for determining the position, speed and / or acceleration of a car, the sensor device having a code tape that can be arranged in an elevator shaft and a sensor that can be arranged on the at least one car for reading out the code tape, wherein the sensor is set up to be arranged in a defined position relative to the code tape for reading out the code tape in a first transverse direction extending perpendicular to the shaft direction, and wherein the sensor is set up to be located on the car in to be arranged stationary in the shaft direction and movable at least in the first transverse direction. With such a sensor device, the advantages described above with regard to the elevator system can be achieved accordingly.

The sensor device preferably has a sensor receptacle, wherein the sensor is arranged on a sensor receptacle in a stationary manner in the shaft direction and movable at least in the first transverse direction, and wherein the sensor receptacle is set up for a stationary connection to the car by means of connecting means. The sensor is then already arranged on the sensor receptacle in such a way that the technical problem can be solved and the sensor receptacle can in turn be attached to the car in a simple manner, for example by means of a simple connecting means. In particular, such a sensor holder can also be retrofitted to a car with little effort.

The object is also achieved according to a further aspect of the invention by a car for a previously described elevator system with at least one sensor for reading out a code tape, the sensor being set up to read out the code tape in a first transverse direction extending perpendicular to the shaft direction to be arranged in a defined position relative to the code tape, and wherein the sensor is arranged on the car in a stationary manner in the shaft direction and movably at least in the first transverse direction. With such a car, the advantages described above with regard to the elevator system can be achieved accordingly.

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 vereinfachte schematische Ansicht einer Aufzugsanlage nach einem Aspekt der Erfindung;
• 2a eine schematische Ansicht einer Sensoreinrichtung gemäß einem ersten bevorzugten Ausführungsbeispiel in Seitenansicht;
• 2b die Sensoreinrichtung gemäß 2a in Ansicht von oben; und
• 3 eine schematische Ansicht einer Sensoreinrichtung gemäß einem zweiten bevorzugten Ausführungsbeispiel.

Show in the drawings

• 1 a simplified schematic view of an elevator system according to one aspect of the invention;
• 2a a schematic view of a sensor device according to a first preferred exemplary embodiment in a side view;
• 2 B the sensor device according to 2a in view from above; and
• 3 a schematic view of a sensor device according to a second 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 a section of an elevator system 100 according to one aspect of the invention in a side view. The elevator system 100 includes an elevator shaft 1, which is laterally delimited by shaft walls 1.1, 1.2 and extends in the shaft direction S, which is vertical here. In the elevator shaft 1, a car 2 can be moved along the shaft direction S, which is guided relative to the elevator shaft 1 on guide means, not shown, such as guide rails. The elevator car 2 is suspended on a support cable 3 and is held and driven by the support cable 3. The elevator system 100 also has a sensor device 4, which has a code tape 4.1 held on the shaft wall 1.1 and running along the shaft direction S and a sensor 4.2 arranged on the elevator car 2. The code tape 4.1 has markings, not shown in detail, along the shaft direction S, which can be detected by the sensor 4.2, the position of the sensor 4.2 on the code tape 4.1 - and thus the position of the elevator car 2 in the elevator shaft 1 - based on the detected markings. can be determined. The markings are, for example, optical markings, magnetic markings or markings that can be detected using ultrasound, with the sensor 4.2 being set up accordingly to detect the respective marking. The code tape 4.1 is held stationary on the shaft wall 1.1 by means of several code tape holders 6. The sensor 4.2 is guided on the code tape 4.1 by means 7 for determining the position of the sensor 4.2.

The 2a shows a first embodiment of such a sensor device 4 in detail in a side view. The 2 B shows the sensor device 4 of 2a in sectional view from above. The sensor 4.2 has a reading direction L, in which the sensor 4.2 is aligned with the code tape 4.1 or a code area 8 of the code tape 4.1. The reading direction L is, for example, the direction in which an optical sensor is aligned with the central axis of its field of view and extends perpendicular to the shaft direction S and parallel to a first transverse direction Q.1. Furthermore, a second transverse direction Q.2 runs perpendicular to the shaft direction S and perpendicular to the first transverse direction Q.1, along which the code area 8 also extends with its width.

The sensor 4.2 is held on a sensor receptacle 9, which is held stationary on the car 2 in a manner not shown, for example by means of simple connecting means such as a screw connection. The sensor receptacle 9 encompasses the sensor 4.2 in the first transverse direction Q.1, with the sensor 4.2 being held relative to the sensor receptacle 9 by means of plain bearings 10.1, 10.2. A first such plain bearing 10.1 is arranged at an upper end of the sensor 4.2 in the shaft direction S, a second such plain bearing 10.2 at a lower end of the sensor 4.2 in the shaft direction S. The sensor 4.2 is in the shaft direction S due to the plain bearings 10.1, 10.2 fixed and therefore arranged in a stationary manner on the sensor holder 9 and thus on the car 2. The plain bearings 10.1, 10.2 have round recesses 11 into which the sensor 4.2 engages with also round projections 12. The projections 12 are movable in the recesses 11 in the first transverse direction Q.1, with first stops 11.1, 11.2 of the recesses 11 in the first transverse direction Q.1 being formed by side wall regions. The sensor 4.2 is therefore movable within the limits of the first stops 11.1, 11.2 in the first transverse direction Q.1 relative to the sensor holder 9 and thus relative to the car 2. The projections 12 are also movable in the recesses 11 in the second transverse direction Q.2, with second stops 11.3, 11.4 of the recesses 11 in the second transverse direction Q.2 being formed by side wall regions. The sensor 4.2 is therefore movable within the limits of the second stops 11.3, 11.4 in the second transverse direction Q. 1 relative to the sensor holder 9 and thus relative to the car 2. Ultimately, the sensor 4.2 is also rotatably held in the plain bearings 10.1, 10.2 about its vertical axis, which forms a second axis of rotation A.2. The sensor 4.2 is held captively by the projections 12 on the sensor holder 9.

The code tape 4.1 is held stationary on the code tape holders 6, so it cannot move relative to the shaft wall 1.1 in either the first transverse direction Q.1 or the second transverse direction Q.2. Likewise, the code tape 4.1 is arranged in a rotationally fixed manner on the code tape holders 6, so it cannot rotate about its vertical axis, which forms a first axis of rotation A.1.

Means 7 for determining the position of sensor 4.2 are also arranged in a stationary manner on the sensor and are guided on code tape 4.1. This includes means 7, as in 2 B shown, the code tape 4.1 from the sides. The position of the sensor 4.2 relative to the code tape 4.1 is determined by the means 7 at any time in the first transverse direction Q.1, the second transverse direction Q.2 and about the second axis of rotation A.2, the movable in these directions or about this axis rotatable sensor 4.2 is tracked to the stationary code tape 4.1.

3 shows an alternative embodiment of a sensor device 4, the differences from the previously described embodiment being explained below. In the sensor device 4 according to 3 the sensor 4.2 is held on the sensor holder 9 by means of traction means 13.1, 13.2. The traction means 13.1, 13.2 extend in the shaft direction S and are each at an upper end and a lower end End of the sensor 4.2 arranged. The traction means 13.1, 13.2 are characterized in particular by the fact that they can absorb forces in their longitudinal direction and do not have a flexible, i.e. rigid, behavior in this longitudinal direction, and at the same time are flexible in directions perpendicular to their longitudinal direction. The traction means 13.1, 13.2 hold the sensor 4.2 stationary in the shaft direction S, which is its longitudinal direction, while the sensor 4.2 remains movable in the first transverse direction Q.1 and the second transverse direction Q.2. In particular, the traction means 13.1, 13.2 can also be rotated, so that the sensor 4.2 is also held on the sensor receptacle 9 so that it can rotate about the second axis of rotation A.2. The traction means 13.1, 13.2 are designed, for example, as ropes, wires or spring elements.

Reference symbol list

1

elevator shaft

1.1

shaft wall

1.2

shaft wall

2

elevator car

3

carrying rope

4

Sensor device

4.1

Code tape

4.2

sensor

6

Code tape holder

7

Means for determining the location of the sensor

8th

Code area

9

Sensor recording

10.1

bearings

10.2

bearings

11

recess

11.1

first stop of the recess

11.2

first stop of the recess

11.3

second stop of the recess

11.4

second stop of the recess

12

head Start

13.1

traction means

13.2

traction means

100

Elevator system

A.1

first axis of rotation

A.2

second axis of rotation

L

Reading direction

Q.1

first transverse direction

Q.2

second transverse direction

S

shaft direction

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 3519335 [0006]

Claims (15)

Elevator system (100), comprising at least one elevator shaft (1) extending along a shaft direction (S); at least one elevator car (2) which can be moved along the elevator shaft (1) in the shaft direction (S); and a sensor device (4) for determining the position, speed and / or acceleration of the elevator car (2), wherein the sensor device (4) has a code tape (4.1) extending along the elevator shaft (1) in the shaft direction (S) and one on the at least has a sensor (4.2) arranged in a car (2) for reading out the code tape (4.1); wherein the sensor (4.2) is set up to be arranged in a defined position relative to the code tape (4.1) for reading out the code tape (4.1) in a first transverse direction (Q.1) extending perpendicular to the shaft direction (S); wherein the code tape (4.1) is arranged in a stationary manner on the elevator shaft (1) in the first transverse direction (Q.1); and wherein the sensor (4.2) is arranged on the car (2) in a stationary manner in the shaft direction (S) and is movable at least in the first transverse direction (Q.1). Elevator system (100). Claim 1 , wherein the sensor (4.2) is set up to read out the code tape (4.1) in a second transverse direction (Q.2) extending perpendicular to the shaft direction (S) and perpendicular to the first transverse direction (Q.1) in a defined position to be arranged on the code tape (4.1); wherein the code tape (4.1) is arranged in a stationary manner on the elevator shaft (1) in the second transverse direction (Q.2); and wherein the sensor (4.2) is movably arranged on the car (2) in the second transverse direction (Q.2). Elevator system (100). Claim 1 or 2 , wherein the sensor (4.2) is set up to be arranged at a defined angle to the code tape (4.1) for reading out the code tape (4.1); wherein the code tape (4.1) is arranged in a rotationally fixed manner on the elevator shaft (1) about a first axis of rotation (A.1) parallel to the shaft direction (S); and wherein the sensor (4.2) is rotatably arranged on the car (2) about a second axis of rotation (A.2) parallel to the first axis of rotation (A.1). Elevator system (100) according to one of the preceding claims, wherein a sensor receptacle (9) is arranged in a stationary manner on the elevator car (2) and the sensor (4.2) is arranged on the sensor receptacle (9). Elevator system (100) according to one of the preceding claims, wherein at least one first stop (11.1, 11.2) is provided for limiting the mobility of the sensor (4.2) in the first transverse direction (Q.1). Elevator system (100) according to one of the preceding claims, wherein at least one second stop (11.3, 11.4) is provided for limiting the mobility of the sensor (4.2) in the second transverse direction (4.2). Elevator system (100) according to one of the preceding claims, wherein at least a third stop is provided to limit the rotation of the sensor (4.2) about the second axis of rotation (A.2). Elevator system (100) according to one of the preceding claims, wherein the sensor (4.2) is held in the shaft direction (S) between two traction means (13.1, 13.2), the traction means (13.1, 13.2) extending in the shaft direction (S). Elevator system (100) according to one of the Claims 1 until 7 , wherein the sensor (4.2) is held on the car (2) by means of at least one plain bearing (10.1, 10.2) or roller bearing. Elevator system (100) according to one of the preceding claims, wherein means (7) for determining the position of the sensor (4.2) are arranged on the code tape (4.1), wherein the means (7) for determining the position of the sensor (4.2) determine the position of the sensor (4.2) in the first transverse direction (Q.1), the second transverse direction (Q.2) and / or determine the angular position of the sensor (4.2) about the second axis of rotation (A.2). Elevator system (100). Claim 10 , wherein the means (7) for determining the position of the sensor (4.2) are designed as a guide. Elevator system (100) according to one of the preceding claims, wherein the code tape (4.1) is arranged in the elevator shaft (1) by means of several code tape holders (6). Sensor device (4) for an elevator system (100) according to one of the preceding claims, for determining the position, speed and / or acceleration of a car (2); wherein the sensor device (4) has a code tape (4.1) which can be arranged in an elevator shaft (1) and a sensor (4.2) which can be arranged on the at least one elevator car (2) for reading out the code tape (4.1); wherein the sensor (4.2) is set up to read out the code tape (4.1) in a first direction extending perpendicular to the shaft direction (S). th transverse direction (Q.1) to be arranged in a defined position relative to the code tape (4.1); and wherein the sensor (4.2) is designed to be arranged on the car (2) in a stationary manner in the shaft direction (S) and movably at least in the first transverse direction (Q.1). Sensor device (4). Claim 13 , having a sensor holder (9); wherein the sensor (4.2) is arranged on a sensor receptacle (9) in a stationary manner in the shaft direction (S) and movable at least in the first transverse direction (Q.1), and wherein the sensor receptacle (9) is for a stationary connection to the elevator car (2) is set up using connecting means. Car (2) for an elevator system (100) according to one of the Claims 1 until 12 with at least one sensor (4.2) for reading a code tape (4.1); wherein the sensor (4.2) is set up to be arranged in a defined position relative to the code tape (4.1) for reading out the code tape (4.1) in a first transverse direction (Q.1) extending perpendicular to the shaft direction (S); and wherein the sensor (4.2) is arranged on the car (2) in a stationary manner in the shaft direction (S) and is movable at least in the first transverse direction (Q.1).

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