EP3820803A1

EP3820803A1 - Fire protection device for an elevator system

Info

Publication number: EP3820803A1
Application number: EP19742002.9A
Authority: EP
Inventors: Richard Thum; Eduard STEINHAUER
Original assignee: ThyssenKrupp Elevator Innovation and Operations GmbH
Current assignee: TK Elevator Innovation and Operations GmbH
Priority date: 2018-07-13
Filing date: 2019-07-12
Publication date: 2021-05-19
Also published as: US20210331893A1; DE102018211733A1; WO2020011980A1; CN112739640A

Abstract

The present invention relates to a fire protection device (10) for an elevator system (20), and to a method for operating such a fire protection device (10), and to an elevator system (20) comprising such a fire protection device (10) or comprising a control unit (11) which is designed to carry out a method for operating a fire protection device (10). The elevator system (20) comprises at least one lift shaft (21) in which at least one car (22) can be moved along at least one guide rail (24), wherein the lift shaft (21) has at least two shaft sections (211a, 212b). The fire protection device (10) comprises a control unit (11) and at least one detector (12), and at least one closing element (13), which closing element (13) is arranged in the lift shaft (21) between two adjacent shaft sections (211a, 211b) of the lift shaft (21) and can be transferred between an open state and a closed state. After smoke and/or a fire has been detected, in particular detected by means of a detector (12), a closing element (13) is transferred from an open state into a closed state.

Description

Fire protection device for an elevator system

The invention relates to a fire protection device for an elevator system, the elevator system comprising at least one elevator shaft, in which at least one car can be moved along at least one guide rail.

The invention further relates to a method for operating such a fire protection device.

Furthermore, the invention relates to an elevator installation comprising such a fire protection device or comprising a control unit which is set up to carry out such a method for operating such a fire protection device.

DIN EN 81-72: 2015 contains the safety requirements for a fire service lift. According to DIN EN 81-72: 2015, a "safe area" or a fire damper / fire door must be available in front of each shaft door of a fire service lift shaft. A safe area is an area that has a safe route to the elevator and a safe exit, e.g. via stairs, and which is shielded from the fire by suitable fire-resistant devices and kept as smoke-free. The fire-resistant devices are partitions or fire doors that separate the safe area from the rest of the building.

For a fire service lift, there must be a safe area in front of every landing door that is used during fire service operations. In addition, shaft doors that are not intended for use by the fire brigade and do not have a safe area must be protected by fire dampers or fire doors.

According to DIN EN 81-72: 2015, the shaft is therefore separated from the building by means of fire protection doors and / or fire-resistant partition walls. The shaft is indirectly separated from the building by separating a safe area in front of a shaft door from the building by means of fire protection doors and / or partitions, or the shaft is separated directly from the building if a shaft door is protected by fire protection doors. If smoke and / or fire is present in an elevator shaft, the shaft is separated from the building using fire protection doors in accordance with DIN EN 81-72: 2015 and thus forms a single vertical fire compartment.

The problem with the fire protection device for an elevator system known from the prior art is that in the event of a fire in an elevator shaft, smoke and / or the fire spreads inside the elevator shaft. Smoke extraction, e.g. counteracted expansion by means of pressure ventilation, but this is only of limited effectiveness due to the chimney effect prevailing in an elevator shaft. The elevator system can only be used as a fire service lift, whereby the firefighters wear protective clothing that protects them from burns and smoke poisoning. It is generally not possible to continue operating the elevator system to clear the building, so that people to be evacuated have to leave the building by stairs, and people with limited physical mobility often have to be carried.

A particularly problematic situation exists when the elevator installation comprises several elevator shafts connected to one another. In this case, smoke and / or fire can spread from one elevator shaft to another elevator shaft and thus spread to large parts of a building. In order to contain this at least partially, pressure ventilation would have to be maintained in all of the interconnected elevator shafts at the same time, which entails a high level of technical complexity.

Against this background, it is an object of the present invention to improve an initially mentioned fire protection device for an elevator system and an improved method for operating a fire protection device, and an elevator system comprising such a fire protection device or comprising a control unit which is set up to operate such a method to carry out such a fire protection device. In particular, the spread of smoke and / or fire within an elevator shaft, in particular a spread in further elevator shafts of the elevator system connected to this elevator shaft, is to be prevented. In particular, the use of such an elevator system should be improved if smoke and / or fire is present in an elevator shaft. To achieve this object, a fire protection device for an elevator system, a method for operating a fire protection device for an elevator system, and an elevator system according to the independent claims are proposed. Further advantageous embodiments of the invention are described in the dependent claims and the description and are shown in the exemplary embodiments shown in the figures.

The proposed solution provides a fire protection device for an elevator system, the elevator system comprising at least one elevator shaft in which at least one car can be moved along at least one guide rail.

In particular, it is provided that the fire protection device comprises at least one closing element, the closing element being arranged in the elevator shaft and being able to be transferred between an open state and a closed state. In particular, the closing element is designed as a smoke protection curtain or as a smoke apron. In particular, the closing element is designed as a fire protection door or as a fire protection roller blind. In particular, the closing element comprises at least one door leaf and / or at least one roller blind and / or at least one folding roller blind. In particular, the closing element comprises a fixed partition.

In one configuration, the fire protection device for the elevator installation comprises a control unit and at least one detector.

The elevator shaft of the elevator installation, in which the closing element is arranged, has at least two shaft sections. The closing element is in particular arranged between two mutually adjacent shaft sections of the elevator shaft, so that the closing element, when it is in the closed state, at least partially, in particular completely, separates the two mutually adjacent shaft sections.

In particular, the closing element, when it is in the closed state, separates the two adjacent shaft sections from one another in such a way that the spreading of smoke and / or fire from a first shaft section into an adjacent second shaft section is prevented.

In one configuration, the at least one detector of the fire protection device is arranged in at least one of the shaft sections of the elevator shaft and / or on that in the Movable elevator car shaft arranged. In particular, the detector arranged on the car is arranged in the interior of the car.

In particular, the detector of the fire protection device is set up to detect smoke and / or a fire. The detector in particular comprises a smoke detector and / or an infrared detector. In particular, the detector is set up to detect a temperature difference.

In one configuration, the control unit of the fire protection device is set up to transfer the closing element between the open state and the closed state depending on a signal output by the detector.

In particular, the closing element is in the open state during normal operation of the elevator installation. In particular, the detector sends a signal to the control unit when it detects smoke and / or a fire. In particular, the control unit then converts the closing element into the closed state such that the at least one shaft section in which the smoke and / or the fire was detected is at least partially, in particular completely, separated from the at least one adjacent shaft section to this shaft section.

As a rule, shaft elements are present in elevator shafts, in particular shaft elements running vertically in the elevator shaft. These shaft elements running vertically in the pull-out shaft are in particular guide rails projecting into the interior of the elevator shaft. In elevator systems with a rope guide, at least one supporting rope of the elevator car, which can also be designed as a carrying belt, and optionally a lower rope, which can also be designed as a lower chain, extend in particular in the vertical direction in the elevator shaft.

In one embodiment, at least one of the closing elements has recesses for the passage of at least one vertically running shaft element, in particular at least one guide rail and / or at least one rope, the rope being able to be designed as a carrying rope or as a lower rope in order to completely close the ones arranged in an elevator shaft To allow closing elements. In particular, the recesses in the closing element are arranged in at least one closing element segment of the closing element. In particular, the recesses are arranged on at least one edge of the at least one closing element segment. In particular, the at least one closing element segment is a door leaf and / or a roller blind and / or a folding roller blind.

In particular, the recesses for the guide rails are adapted to the design of the guide rails. In this way, in the closed state of the closing element, the distance between the at least one closing element segment of the closing element and the guide rails is minimized.

The leakage point of the closing element due to the spacing between the at least one closed closing element segment of the closing element and the at least one guide rail is closed by means of a sealing material, in particular a deformable sealing material. This prevents smoke from passing through or the spread of fire from one shaft section to another. In particular, the deformable sealing material is a fire protection foam and / or a rubber lip and / or a brush seal.

In elevator systems with a rope guide, the rope guide requires a special design of the closing element arranged in the elevator shaft, in particular if the closing element is a fire protection door or a fire protection roller blind, so that the rope is not damaged when the closing element is transferred from an open state to a closed state. In particular, the closing element in an elevator installation, in which a car is connected to a counterweight via a supporting rope and / or a lower rope, in order to avoid damage to the cable guide, is divided into two closing element sectors. In particular, a first locking element sector is assigned to an area of the elevator shaft in which the elevator car is moved and a second locking element sector is assigned to an area of the elevator shaft in which the counterweight is moved. In particular, each of the two locking element sectors has two locking element segments. In particular, the closing element segments are designed in such a way that the position of the support cable or the lower cable in the projection plane of the elevator shaft is not changed significantly by the closing of the closing element segments. In particular, a first closing element segment of the first closing element sector and / or of the second closing element sector has recesses on at least one edge for the passage of at least one rope. In particular, a second closing element segment of the first closing element sector and / or of the second closing element sector has recesses on at least one edge for the passage of at least one rope.

In particular, on the at least one edge of the first and / or second locking element segment of the first and / or second locking element sector, a plurality of recesses for the cable guide are arranged side by side, so that a comb pattern results.

In particular, the first locking element segment of the first locking element sector and / or the second locking element sector has the recesses on the edge which faces the edge of a second locking element segment of the first locking element sector and / or the second locking element sector when the locking element is in the closed state.

In particular, the second closing element segment of the first and / or second closing element sector has the recesses on that edge which faces the edge of the first closing element segment of the first and / or second closing element sector when the closing element is in the closed state.

In particular, each of the two closing element segments of the two closing element sectors has recesses for the supporting cable or the lower cable on at least one edge. In particular, the recesses on the edge of the first locking element segment of the first and / or second locking element sector and the recesses on the edge of the second locking element segment of the first and / or second locking element sector are arranged in such a way that the recesses of the first locking element segment and the recesses of the second locking element segment are arranged in opposite closed state of the closing element. In particular, the recesses of the first locking element segment and the recesses of the second locking element segment are arranged such that in the closed state of the locking element a rope is passed through a recess which is provided by a recess of the first locking element segment and a recess of the second locking element segment opposite this.

In an advantageous embodiment, the areas between the plurality of recesses arranged next to one another for the cable guide have at the edge of the closing element segment each have a tapering shape. Due to this tapering shape, the rope is guided into one of the recesses when the closing element is moved into the closed state.

The lining up of several recesses next to one another ensures that the rope is guided into a recess even when the rope vibrates when the closing element is brought into the closed state. This prevents the rope from being damaged when the closing element is moved into the closed state due to rope vibrations. On the other hand, the arrangement of a plurality of recesses next to one another prevents the suspension cable or the lower cable from blocking complete closure of the closing element due to cable vibrations. Furthermore, the configuration of the recesses as a comb pattern has the effect that a spacing between the closing element segments when the closing element is closed is minimized.

In order to prevent smoke and / or fire from spreading through the leakage points in the closing element caused by the recesses for the cable guide, these are filled with a deformable sealing material. In particular, the sealing material is a fire protection foam. Alternatively or additionally, the sealing material is rubber lips and / or a brush seal, which are each arranged on the abutting edges of the closing element segments of the closing element sectors.

Locking elements which have a first locking element sector and a second locking element sector can be designed in different ways. In particular, the locking element segments of the first locking element sector and the second locking element sector are arranged in such a way that in the closed state they form a flat, closed surface which separates a first shaft section from a second shaft section. In particular, the first locking element sector is spaced apart from the second locking element sector by a platform that is at least partially fixed, in particular horizontally in the elevator shaft. In particular, the first closing element sector and the second closing element sector are arranged offset to one another in the vertical direction of the elevator shaft. In particular, the first locking element sector and the second locking element sector are spaced apart by a platform arranged in the elevator shaft, the platform extending at least partially in the vertical direction of the elevator shaft. In the closed state of the closing element, the two closing element sectors together with the sectors arranged at least partially in the vertical direction of the elevator shaft Platform a stepped closed area that separates the first shaft section from the second shaft section.

In a further embodiment of the invention, the fire protection device is designed for an elevator system, which comprises at least a first elevator shaft and at least a second elevator shaft and at least one shaft changing unit, by means of which shaft changing unit the car can be changed from the first elevator shaft to the second elevator shaft. The first elevator shaft and / or the second elevator shaft has at least two shaft sections, the closing element of the fire protection device being arranged between two mutually adjacent shaft sections of the first elevator shaft and / or the second elevator shaft. In the closed state, the closing element at least partially, in particular completely, separates the two mutually adjacent shaft sections of the first elevator shaft and / or the second elevator shaft.

In particular, the elevator installation comprises a plurality of elevator shafts in which a plurality of cars are moved individually, that is to say essentially independently of one another, by means of a linear motor drive. In particular, the elevator installation comprises vertically aligned elevator shafts, in which the cars are moved vertically along guide rails, and horizontally aligned elevator shafts, in which the cars are moved horizontally along guide rails. In particular, the direction of travel of a car changes from vertical to horizontal or vice versa by means of shaft change units. In particular, a car can be changed from a first elevator shaft to a second elevator shaft using shaft exchange units.

In particular, the elevator system comprises diagonally aligned elevator shafts in which the cars are moved obliquely.

In particular, at least one vertical elevator shaft and / or at least one horizontal elevator shaft has at least two shaft sections, a closing element being arranged between two mutually adjacent shaft sections. It is possible that a shaft section is adjacent to at least one shaft section of a vertical elevator shaft as well as to at least one shaft section of a horizontal elevator shaft. In order to separate such a shaft section from all neighboring shaft sections, it is necessary in at least one vertical one Elevator shaft, as well as to convert at least one closing element into the closed state in each case in at least one horizontal elevator shaft.

In an elevator installation in which cars are moved by means of a linear motor drive, there is no cable guide, which considerably simplifies the design of a closing element which is arranged in an elevator shaft of such an elevator installation.

The closing element can be designed in different ways in such an elevator installation. In particular, the at least one closing element segment of the closing element is designed as a pivotable door or as a sliding door. In particular, the at least one closing element segment of the closing element is designed as an extendable roller blind or folding roller blind.

In the at least one locking element segment of the locking element, recesses are arranged for the passage of at least one shaft element, which is arranged in the direction perpendicular to the locking element. In particular, the shaft element is a guide rail.

In particular, the recesses are arranged on at least one edge of the at least one closing element segment.

In particular, the closing element has a one-part closing element segment, the closing element segment being designed as a pivotable wing door, or a sliding door, or a roller blind, or a folding roller blind. In particular, the closing element segment has recesses on one edge for the passage of a shaft element, in particular a guide rail.

In particular, the closing element segment of the closing element is designed in two parts, the two-part closing element segment being designed as pivotable wing doors, or sliding doors, or roller blind, or folding roller blind. In particular, the two-part locking element segment of the locking element is designed such that the two parts of the locking element segment meet in the central position of a shaft element, in particular a guide rail, when the locking element is closed.

In particular, the recesses are adapted to the shape of the shaft element, in particular the guide rail, so that in the closed state of the closing element, a distance between the at least one closing element segment and the shaft element is minimal. io

In particular, a leakage of the closing element resulting from a distance between the closing element segment of the closing element and the shaft element is counteracted by filling this distance with a deformable sealing material. The sealing material is in particular a fire protection foam.

In the case of a two-part or multi-part closing element segment of a closing element, in the closed state of the closing element there is an additional leakage of the closing element at the point where the individual parts of the closing element segment meet. In order to counteract the spread of smoke and / or fire due to this leakage of the closing element, the closing element has a deformable sealing material at these points. In particular, the sealing material is a fire protection foam, by means of which the closing element is sealed in the closed state. Alternatively or additionally, the sealing material is rubber lips and / or a brush seal.

Compared to the multi-part design of the locking element segment of the locking element, the embodiment of a one-part locking element segment has the advantage that the locking element in the closed state does not have a joint which, because of the multi-part design, extends over the entire width of the locking element segment. This results in fewer leaks in an embodiment with a one-piece closing element segment, which must be sealed by means of a sealing material.

The design of a multi-part locking element segment, on the other hand, offers the advantage that the individual parts of the locking element segment each have a lower mass than a one-piece locking element segment. The lower mass simplifies transferring the closing element between an open and a closed state.

In one configuration, the fire protection device for an elevator system, which comprises at least one first elevator shaft and at least one second elevator shaft and at least one shaft changing unit, by means of which shaft changing unit the elevator car can be changed from the first elevator shaft to the second elevator shaft, has a closing element which is attached to the Manhole exchange unit is arranged. In particular, the shaft change unit comprises a stationary part and a movable part. In particular, the stationary part of the shaft changing unit is fixedly arranged on a shaft wall in an intersection area of the first elevator shaft and the second elevator shaft. In particular, the movable part is movable, in particular rotatable, arranged on the stationary part. In particular, the direction of travel of the car is predetermined by the orientation of the movable part.

In particular, the movable part of the shaft change unit is designed as a movable, in particular as a rotatable, mounted rail element. In particular, the rail element is rotated for a shaft change of the car, so that the direction of travel of the car changes as a result of the change in the orientation of the rail element.

In one configuration, the closing element is arranged on the movable part of the shaft changing device. In particular, the closing element comprises at least one fixed fire-resistant partition.

In particular, the at least one fixed partition is arranged so firmly on the movable part that the closing element always closes at least one opening to the first elevator shaft or to the second elevator shaft, which opening is in a direction deviating from the direction of travel of the elevator car, in particular orthogonal to that given by the orientation of the moving part of the direction of travel of the car.

In particular, the at least one fixed partition is designed in the form of a circular arc. In this way, the movable part can be rotated freely on the stationary part. Furthermore, the circular arc shape of the fixed partition walls completely closes an opening to the first elevator shaft or second elevator shaft, which is located in a direction deviating from the direction of travel of the elevator car.

In particular, a fixed partition is arranged on both sides of the movable part. In particular, the fixed partitions are arranged on the movable part such that the closing element is opened only in the direction of travel of the car.

In addition to the at least one fixed partition, the closing element can comprise at least one movable partition which is movably arranged on the fixed partition. In particular, the control unit of the fire protection device is set up for this to transfer the at least one movable partition depending on a signal output by the detector between the open state and the closed state.

In one configuration, the at least one partition is arranged on the fixed partition such that the at least one movable partition does not protrude beyond the surface spanned by the fixed partition on which the at least one movable partition is arranged.

In particular, two movable partitions are arranged on a fixed partition. In particular, by moving the movable partition walls into the closed state, the area spanned by the fixed partition wall is enlarged on both sides of the fixed partition wall.

In particular, the area of a movable partition corresponds to at least half the area of the fixed partition, so that at least half of an elevator shaft cross-sectional area can be spanned by means of a movable partition in the closed state.

In particular, the at least one movable partition is carried along in normal operation by the fixed partition on which the at least one movable partition is arranged.

This ensures that a travel path for a car in the orientation direction of the movable part of the shaft change unit is not blocked by a movable partition in normal operation.

To transfer the at least one movable partition from an open state to a closed state, the closing element comprises at least one drive.

The at least one movable partition is transferred from the open state to the closed state by means of the control unit of the fire protection device, in that the control unit controls the at least one drive of the associated movable partition, which sets the movable partition in motion. If all movable partitions of a closing element are brought into the closed state, the closing element completely encloses the shaft changing unit. This has the advantage that a shaft change unit is protected in the event of a fire and thus prevents the complex technology of the shaft change unit from being damaged.

According to the invention, the method for operating a fire protection device for an elevator system described above comprises detecting smoke and / or fire, in particular by means of a detector. As a result of the detection of smoke and / or a fire, a closing element, which is arranged in an elevator shaft, is transferred from an open state to a closed state.

If a detector detects smoke and / or a fire, this detector sends a signal to a control unit. The signal sent from the detector to the control unit contains information about the location at which the detector is arranged.

If the detector is arranged in an elevator shaft, the signal contains information about in which elevator shaft and in which shaft section of the at least two shaft sections of the elevator shaft the detector is arranged.

If the detector is arranged on a car, in particular in a car, the signal contains information about which car the detector is arranged on. In particular, the control unit receives information about the current position of the car when the detector is arranged on the car. In particular, the control unit receives information as to whether the car stops at a stop or whether the car is moved in a direction of travel. In particular, the control unit receives information about the direction in which the car on which the detector is arranged is being moved.

If the detector which sends the signal to the control unit is arranged on the car, and if the car is moved in one direction of travel at the time at which the detector sends the signal to the control unit, the car moves a predetermined, in particular one nearest stop, which is in the direction of travel of the car. In particular, the car is prevented from continuing on from the predetermined stop that it has started. Each of the at least two shaft sections of the at least one elevator shaft advantageously has at least one stop, in particular at least one predetermined stop, on one floor level of a building. In this way, the further travel of the car on which the detector is arranged, which sends the signal to the control unit, is minimized. In particular, people who are in the car can be evacuated from the car at the stop that the car approaches.

If the detector which sends the signal to the control unit is arranged on the car and the car stops at the point in time at which the detector sends the signal to the control unit, the car stops moving on at this stop prevented.

If the detector that sends the signal to the control unit is arranged on the car, the shaft section in which the stop that the car has started and / or where the car is prevented from continuing is located is assigned to a restricted area ,

If the detector that sends the signal to the control unit is arranged in an elevator shaft, the shaft section in which the detector is located is assigned to a restricted area.

It is possible that several elevator sections are assigned to a common restricted area in an elevator installation. It is also possible that if smoke and / or a fire is detected in several shaft sections spaced apart from one another, several blocking areas are simultaneously present in an elevator installation.

In particular, when smoke and / or a fire is detected in a shaft section, ventilation openings of a car are closed in order to prevent smoke from entering the car through the ventilation openings. In particular, oxygen is supplied to the interior of the car.

As soon as a shaft section is assigned to a restricted area, it is checked whether there is a car and / or a counterweight in a passage of the restricted area. In the event that there is a passage, the corresponding car and / or the counterweight is moved out of the restricted area without stopping. In this way, it is in particular prevented that a car loaded with people is closed in the restricted area by closing closing elements, thereby separating the restricted area from the adjacent shaft sections.

Furthermore, it is checked whether there is a risk of collision of a car and / or a counterweight with the closing element by moving the closing element into the closed state.

If it is determined that a car and / or a counterweight is moved in a direction of travel in the direction of the closing element which is to be brought into the closed state and there is a risk of collision, the car and / or the counterweight is passed through the restricted area without stopping , Only when there is no longer a risk of collision is the closing element brought into the closed state.

If it is determined that a car and / or a counterweight is moved in a direction of travel in the direction of the closing element which is to be brought into the closed state, and the distance from the car and / or from the counterweight to this closing element corresponds to a value between one first limit value and a second limit value, the car and / or the counterweight is braked.

In particular, the car and / or the counterweight is braked when the car and / or the counterweight is at least a minimum distance from the closing element which is to be brought into the closed state. In particular, the braking distance required based on the current driving speed of the car and / or the counterweight is determined. In particular, the minimum distance must correspond to at least a distance that corresponds to the distance of the braking distance. In particular, the minimum distance must correspond to at least a distance that corresponds to the sum of the distance of the braking distance and the width of the at least one closing element segment of the closing element.

If a car which has been moved in a direction of travel in the direction of the closing element which is to be brought into the closed state has been braked, this car is moved to a stop located outside the restricted area. In particular, this stop is a stop that is located outside the restricted area and is closest to the position of the decelerated car. In particular, people who are in the car are able to leave the car at this stop. One is in particular Evacuation route display electronically connected to the control unit of the elevator system. In particular, the evacuation route display shows the direction of the escape route.

If a car and / or a counterweight has been passed through a restricted area, the control unit withdraws a clearance for the car and / or for the counterweight through the shaft section which is assigned to the blocked area as soon as the passage of the car and / or the counterweight is finished, so that the car and / or the counterweight has been moved out of the restricted area. Only when the passage of the car and / or the counterweight has ended, that is to say that there is no longer a car and / or counterweight in a passage of the restricted area, is the closing element brought into the closed state.

If there was a risk of collision of a car and / or a counterweight with the closing element which is to be transferred into the closed state, the control unit withdraws clearance for the car and / or the counterweight through the shaft section which is assigned to the restricted area. as soon as the risk of collision of the car and / or the counterweight with the closing element is eliminated by moving the closing element into the closed state. Furthermore, the closing element is transferred into the closed state as soon as the risk of collision of the car and / or the counterweight with the closing element is eliminated by transferring the closing element into the closed state.

In particular, a closing element is only brought into the closed state when a car and / or a counterweight that has been moved in a direction of travel in the direction of the closing element to be brought into the closed state has been braked, so that there is no risk of collision when the closing element is transferred to is in the closed state.

If a closing element is in the closed state and a blocking area is separated from the at least one adjacent shaft section, in particular separated from all neighboring shaft sections, in particular completely separated, then a suppression is generated in the blocked area. In particular, there is a suppression in the blocked area as soon as the air pressure in the blocked area has a lower value than the air pressure in the at least one shaft section adjacent to the blocked area, which is separated from the blocked area by a closing element which is in the closed state , In particular, the at least one shaft section adjacent to the blocking area is insulated in an airtight manner by the closing element arranged between this shaft section and the blocking area.

In particular, there is a negative pressure in the restricted area as soon as the air pressure in the restricted area has a lower value than the air pressure in the at least one safe area outside the elevator shaft, which can be used for evacuation purposes. In particular, the safe area is separated from the restricted area by a closed shaft door. In particular, the secure area is separated from the restricted area by a closed closing element.

The negative pressure generated in the restricted area means that smoke does not escape from the blocked area into neighboring shaft sections and / or into safe areas outside the elevator shaft.

Alternatively, or in addition to the suppression in the restricted area, pressure ventilation is activated in the at least one shaft section which is adjacent to the restricted area. In particular, pressure ventilation is activated in the at least one safe area adjacent to the restricted area. Pressure ventilation counteracts the spread of smoke.

The arrangement of closing elements in the elevator shaft and the separation of a blocking area from the adjacent shaft sections by moving closing elements into the closed state makes it possible for the smoke and / or fire detected in the blocked area to be separated from all other shaft sections in the separated blocking area the elevator system is kept away. It can thus be ensured that the elevator system is not affected by smoke and / or fire outside the restricted area.

This results in the possibility that if the at least one closing element is in the closed state, so that the restricted area is separated, a car is moved outside the restricted area in normal operation.

In particular, an evacuation route indicator leads from this car when a car has been braked and moved to a stop located outside the restricted area People getting off to a stop of the elevator system, at which it is possible to continue with a car in normal operation. In particular, the stop at which the journey can continue is on the same building level as the stop at which the decelerated car was stopped. In particular, people who have got out of the braked car are guided by means of the evacuation route display via a staircase to another building level, on which a further journey is possible. In particular, passenger traffic is taken into account. In particular, in the case of a high volume of passenger traffic, if several cars have been braked, people from a first braked car are led via the evacuation display via another escape route than people from a second braked car.

In addition to the possibility of being able to operate an elevator system in normal operation outside of a restricted area, the fire protection device according to the invention also reduces risks for firefighters during a fire brigade deployment.

Further advantageous details, features and design details of the invention are explained in more detail in connection with the exemplary embodiments shown in the figures. It shows:

1 shows a simplified schematic illustration of an exemplary embodiment of a fire protection device according to the invention for an elevator system;

2 shows, in a simplified schematic representation, a further exemplary embodiment for the configuration of a fire protection device according to the invention for an elevator installation;

3 shows, in a simplified schematic representation, a further exemplary embodiment for the configuration of a fire protection device according to the invention for an elevator installation;

4a shows a simplified schematic illustration of the closing element in an open state in an elevator installation according to one of the embodiments shown in FIG. 1, FIG. 2 or FIG. 3 in a top view;

4b shows a simplified schematic illustration of the closing element in a closed state in an elevator installation according to one of the embodiments shown in FIG. 1, FIG. 2 or FIG. 3 in a top view; 5 is a simplified schematic illustration of a further exemplary embodiment for the design of a fire protection device according to the invention in an elevator system;

6a shows a simplified schematic illustration of an exemplary embodiment for the configuration of the closing element in an elevator installation according to FIG. 5 in a top view; 6b in a simplified schematic representation, a further exemplary embodiment for the configuration of the closing element in an elevator installation according to FIG. 5 in a top view;

7a shows a simplified schematic illustration of an exemplary embodiment for the configuration of the closing element, which is arranged on a shaft change unit, in a first orientation direction;

7b shows the closing element shown in FIG. 7a in a second orientation direction;

8a in a simplified schematic representation a further exemplary embodiment for the configuration of the closing element, which is arranged on a shaft change unit, in an open state; and

Fig. 8b the closing element shown in Fig. 8a in a closed state.

1, 2 and 3 each show a simplified illustration of an exemplary embodiment of a fire protection device 10 according to the invention for an elevator system 20 with a cable guide. In a lift shaft 21 of the elevator installation 20, a car 22 and a counterweight 23 are moved along guide rails 24 (shown in dashed lines), the car 22 with the counterweight via a support rope 25 and a lower rope 26, which can also be designed as a lower chain 23 is connected. In the exemplary embodiments shown in FIGS. 1, 2 and 3, the fire protection device 10 comprises a control unit 11, a plurality of detectors 12 and a closing element 13. The detectors 12 are in communication connection with the control unit 11. The closing element 13 is arranged in the elevator shaft 21 and can be transferred between an open state and a closed state (shown in dotted lines).

The cable routing of the elevator system 20 requires a special design of the closing element 13, so that when the closing element 13 is transferred from an open state to a closed state, both the supporting cable 25 and the lower cable 26 are not damaged. In order to avoid damage to the cable guide, the closing element 13 is divided into two closing element sectors 13a, 13b, each of the two closing element sectors each has two closing element segments 134a, 134b. There is a first

Locking element sector 13a is assigned to an area of elevator shaft 21 in which car 22 is moved and a second locking element sector 13b is assigned to an area of elevator shaft 21 in which counterweight 23 is moved.

In the exemplary embodiments shown in FIGS. 1, 2 and 3, the elevator shaft 21 has two shaft sections 211a and 211b, each of the two shaft sections each having a stop 212.

The closing element 13 is arranged between the two mutually adjacent shaft sections 211a and 211b in the elevator shaft 21. In the closed state, in which both closing element sectors 13a, 13b are closed, the closing element 13 separates the two shaft sections 211a, 221b from one another.

A detector 12 is arranged in each of the two shaft sections 211a, 211b and in or on the car 22. The detectors 12 are set up to detect a fire and / or smoke. The detectors 12 are in particular infrared detectors and / or smoke detectors. If one or more of the detectors 12 detects a fire and / or smoke, this detector 12 sends or these detectors 12 send a corresponding signal to the control unit 11.

The signal sent to the control unit 11 contains information about the location of the detector 12, which detects the fire and / or smoke. The signal thus contains information as to whether the detector 12, which detects the fire and / or smoke, is arranged in the elevator shaft 21 or in or on the car 22.

In the event that the detector 12, which detects the fire and / or smoke, is arranged in the elevator shaft 21, the control unit 11 receives the information in which of the two shaft sections 211a, 211b of the elevator shaft 21 the corresponding detector 12 is arranged.

If the detector 12 arranged in or on the car 22 detects a fire and / or smoke, the control unit 11 receives a signal from this detector 12. The control unit 11 then checks whether the car 22 stops at a stop 212 or whether the car 22 is moved in the direction of travel in the elevator shaft 21. If the car 22 stops at a stop 212, the control unit 11 prevents the car 22 from continuing. In this case, the car 22 remains at the corresponding stop 212. If the control unit 11 determines that the car 22 is moved in a direction of travel in the elevator shaft 21, the car 22 is moved to a predetermined, in particular the closest, stop 212 which is in the direction of travel in which the car 22 is moved. When the car 22 reaches the stop 212, the car 22 is stopped at the stop 212 and prevented from continuing.

The control unit 11 is set up to transfer the closing element 13 between an open state and a closed state depending on the signal output by the detector 12 or the detectors 12. If a detector 12 detects a fire and / or smoke in a shaft section 211a, 211b and / or in the car 22, the control unit 11 controls the closing element 13 in order to convert the closing element 13 from the open state to the closed state. By moving the closing element 13 into the closed state, the shaft section 211a, 211b, in which a fire can be assumed, is separated from the adjacent shaft section 211a, 211b.

The closing element 13 can be designed in different ways. In the embodiment shown in FIG. 1, the locking element segments 134a, 134b of the first locking element sector 13a and the second locking element sector 13b are hinged wing doors. In the embodiment shown in FIG. 2, the locking element segments 134a, 134b of the first locking element sector 13a and the second locking element sector 13b are designed as sliding doors. In the embodiment shown in FIG. 3, the closing element segments 134a of the first closing element sector 13a are designed as roller blinds and the closing element segments 134b of the second closing element sector 13b are designed as folding blinds. Both the gullwing doors and the sliding doors, roller blinds and folding blinds are designed in such a way that the position of the support cable 25 or the lower cable 26 in the projection plane of the elevator shaft 21 is not significantly changed by the closing of the gullwing doors, sliding doors, roller blinds or folding blinds ,

In the embodiment shown in FIG. 1, the pivotable wing doors of the first locking element sector 13a and the second locking element sector 13b are arranged in such a way that in the closed state they form a flat closed surface which separates the first shaft section 211a from the second shaft section 211b. In this case, the first closing element sector 13a can be spaced apart from the second closing element sector 13b by a platform, as is shown in the embodiment shown in FIG. 2. In a variant, not shown, of the embodiment shown in FIG. 1, the first closing element sector 13a and the second closing element sector 13b are arranged offset to one another in the vertical direction of the elevator shaft 21. The first locking element sector 13a and the second locking element sector 13b are spaced apart by a platform, the platform extending at least partially in the vertical direction of the elevator shaft 21. In the closed state of the closing element 13, the two closing element sectors 13a, 13b, together with the platform arranged at least partially in the vertical direction of the elevator shaft 21, form a stepped closed surface which separates the first shaft section 211a from the second shaft section 211b.

In the embodiment shown in FIG. 2, a platform 213 is fixed in the elevator shaft 21. When the closing element 13 is open, there is one closing element segment 134a, 134b each of the two-part sliding doors of the two

Locking element sectors 13a, 13b below the platform 213. A respective second locking element segment 134a, 134b of the two-part sliding door of the locking element sectors 13a, 13b can either be located outside the elevator shaft 21, for example in a base plate, as shown for the first locking element sector 13a of the building, or, as shown for the second locking element sector 13b, below another platform 213 in the elevator shaft 21. In the closed state of the closing element 13, the sliding doors of the closing element sectors 13a, 13b together with the platform (s) 213 form a closed surface. In particular, the closing element segments 134a, 134b of the sliding doors of the closing element sectors 13a, 13b can be displaced by means of a mechanism such that, when the closing element 13 is closed, the sliding doors of the closing element sectors 13a, 13b form a flat closed surface together with the platform (s) 213. In particular, the locking element segments 134a, 134b of the sliding doors of the locking element sectors 13a, 13b can be displaced such that, when the locking element 13 is closed, the sliding doors of the locking element sectors 13a, 13b form a stepped closed area together with the platform (s) 213.

In an embodiment not shown, the closing element segments 134a, 134b of the first closing element sector 13a and the second closing element sector 13b are different trained from each other. The first closing element sector 13a has pivotable wing doors and the second closing element sector 13b has sliding doors, or vice versa.

The embodiment shown in FIG. 3 essentially corresponds to the embodiment shown in FIG. 2, wherein in FIG. 3 the locking element segments 134a of the first locking element sector 13a are designed as roller blinds and the locking element segments 134b of the second locking element sector 13b are designed as folding blinds. In the opened state of the closing element 13 there is a closing element segment 134a of the two-part roller blind of the closing element sector 13a and a closing element segment 134b of the two-part folding roller blind of the closing element sector 13b below the platform 213. A respective second closing element segment 134a, 134b of the two-part roller blind or folding roller blind of the closing element sectors 13a, 13b, in the opened state of the closing element 13, can either be located outside the elevator shaft 21, for example in a floor slab of the building, as shown for the first closing element sector 13a, or, as shown for the second closing element sector 13b, below another platform 213 in the elevator shaft 21 , In the closed state of the closing element 13, the blinds of the closing element sector 13a and the folding blinds of the closing element sector 13b form a closed surface together with the platform (s) 213. In particular, the closing element segments 134a, 134b of the closing element sectors 13a, 13b can be displaced by means of a mechanism such that in the closed state of the closing element 13 the roller blinds of the closing element sector 13a and the folding blinds of the closing element sector 13b form a flat closed surface together with the platform / platforms 213 , In particular, the closing element segments 134a, 134b of the closing element sectors 13a, 13b can be displaced in such a way that, when the closing element 13 is closed, the roller blinds of the closing element sector 13a and the folding blinds of the closing element sector 13b together with the platform (s) 213 form a stepped closed area.

4a and 4b show a simplified schematic illustration of the closing element 13 in an elevator installation 20 according to one of the embodiments shown in FIG. 1, FIG. 2 or FIG. 3 in a top view. 4a shows the closing element 13 in an open state and FIG. 4b in a closed state.

In the opened state of the closing element 13, as shown in FIG. 4a, the pivotable wing doors, sliding doors, roller blinds or folding blinds of the closing element sectors 13a, 13b are pivoted out of the travel path of the car 22 and the counterweight 23 or pushed out so that the car 22 and the counterweight 23 can be moved freely in the elevator shaft 21.

In the closed state of the closing element 13, as shown in FIG. 4b, the pivotable wing doors, sliding doors, roller blinds or folding blinds of the closing element sectors 13a, 13b are pivoted or pushed into the travel path of the car 22 and the counterweight 23, so that the first is in the elevator shaft Shaft section is separated from the second shaft section.

The locking element segments 134a, 134b of the locking element sectors 13a, 13b each have recesses 131 for the guide rails 24, the recesses 131 for the guide rails 24 being adapted to the configuration of the guide rails 24. In this way, in the closed state of the closing element 13, the distance between the closing element segments 134a, 134b of the closing element sectors 13a, 13b to the guide rails 24 is minimized.

By means of a sealing material 133, the gap resulting from the spacing between the closed closing element segments 134a, 134b of the closing element sectors 13a, 13b and the guide rails 24 is closed, and thus the passage of smoke or the spread of fire from one shaft section into another shaft section is avoided.

Furthermore, the closing element segments 134a, 134b of the closing element sectors 13a, 13b have recesses 132 for the supporting cable 25 and the lower cable 26. In the exemplary embodiment shown in FIG. 4b, a plurality of recesses 132 for the cable guide are arranged next to one another, so that a comb pattern results. The recesses 132 are each arranged on an edge of the closing element segments 134a, 134b. A first closing element segment 134a ', 134b' has the recesses 132 at the edge which faces the edge of a second closing element segment 134a ", 134b" when the closing element 13 is in the closed state. Likewise, the second closing element segment 134a ", 134b" has the recesses 132 on that edge which faces the edge of the first closing element segment 134a ', 134b' when the closing element 13 is in the closed state. Recesses 132 are arranged in the closing element segments 134a, 134b for each pair of hinged doors, sliding doors, roller blinds or folding blinds of the two closing element sectors 13a, 13b such that the Recesses 132 of the first closing element segment 134a ', 134b' and the recesses of the second closing element segment 134a ", 134b" are opposite in the closed state of the closing element 13. The recesses 132 are thus arranged in such a way that, when the closing element 13 is closed, a rope is passed through a recess 132, which is formed by a recess 132 in the first closing element segment 134a ', 134b' and a recess 132 in the second closing element segment 134a ", 134b" opposite this is provided, is passed.

The areas of the closing element segments 134a, 134b of the double doors, sliding doors, roller blinds or folding blinds of the closing element sectors 13a, 13b between the recesses 132 for the cable guide each have a tapering shape. Due to this tapering shape, the support cable 25 or the lower cable 26 is guided into one of the recesses 132 when the closing element 13 is moved into the closed state. The lining up of a plurality of recesses 132 next to one another prevents the suspension cable 25 or the lower cable 26 from being damaged by the transfer of the closing element 13 in the event of cable vibrations. On the other hand, the arrangement of a plurality of recesses 132 next to one another prevents the suspension cable 25 or the lower cable 26 from blocking the closing element 13 from closing completely due to cable vibrations.

In order to prevent smoke and / or fire from spreading through the gaps in the closing element 13 which are formed by the recesses 132 for the cable guide, these gaps are filled by means of a deformable sealing material 133. In particular, the sealing material 133 is a fire protection foam. Alternatively or additionally, the sealing material 133 is rubber lips or a brush seal, which are each arranged on the abutting edges of the locking element segments 134a, 134b of the wing doors, sliding doors, roller blinds or folding blinds of the locking element sectors 13a, 13b.

5 shows a simplified schematic illustration of a fire protection device 10 in an elevator installation 20 with a plurality of elevator shafts, in which a plurality of cars 22 are moved individually, that is to say essentially independently of one another, by means of a linear motor drive. The elevator installation 20 comprises vertically aligned elevator shafts, in which the cars 22 are moved vertically along guide rails 24, and horizontally aligned elevator shafts, in which the cars 22 are moved horizontally along guide rails 24. By means of shaft exchange units 27, which are movable, in particular are designed as rotatable, mounted rail elements, the direction of travel of a car 22 changes from the vertical to the horizontal or vice versa. Furthermore, a car 22 can be changed from a first elevator shaft into a second elevator shaft using shaft exchange units 27.

In a further embodiment, not shown, the elevator installation 20 can also comprise diagonally aligned elevator shafts in which the cars 22 are moved obliquely.

Closing elements 13 are arranged both in the vertical elevator shafts and in the horizontal elevator shafts. As shown in FIG. 5, the closing elements 13 can be designed in different ways. For example, the closing elements shown in FIG. 5 have only one door leaf, roller blind or folding roller blind and partly two door leaves, roller blinds or folding roller blinds. 5, those closing elements 13 which have door leaves are designed in part as pivotable doors and in part as sliding doors.

Both the vertical elevator shafts and the horizontal elevator shafts can each have several shaft sections. By moving a closing element 13 into the closed state, a shaft section is separated from the adjacent shaft section.

In the exemplary embodiment shown in FIG. 5, the closing elements 13 are arranged such that in order to separate a shaft section from all the shaft sections adjacent to this shaft section, both in at least one vertical elevator shaft and in at least one horizontal elevator shaft in each case at least one closing element 13 in the closed state must be transferred.

In FIG. 5, detectors 12 are arranged both on the cars 22 and in the elevator shafts. If smoke and / or a fire is detected in a car 22 or a shaft section by a detector 12, then this detector 12 sends a signal to a control unit 11 of the elevator installation 20. The signal contains information about the shaft section in which the detector 12 is arranged is when the detector 12 is arranged in an elevator shaft. If the detector 12, which detects smoke and / or a fire, is arranged on a car 22, then the signal contains information about which car 22 the detector 12 is arranged on. If the detector 12 which sends the signal to the control unit 11 is arranged on a car 22 and the car 22 is moved in a direction of travel at the time at which the detector 12 sends the signal to the control unit 11, the car is moved 22 to a predetermined, in particular the closest, stop which is in the direction of travel of the car 22. As soon as the car 22 has reached a stop, the car 22 is prevented from continuing.

If the detector 12 which sends the signal to the control unit 11 is arranged on a car 22 and the car 22 stops at the time at which the detector 12 sends the signal to the control unit 11, the car 22 becomes prevented from continuing at this stop.

The shaft section in which the detector 12, which has sent the signal to the control unit 11, or the shaft section in which the stop is located, at which the car 22 is prevented from continuing, is assigned to a restricted area.

In the exemplary embodiment shown in FIG. 5, a detector 12 arranged in an elevator shaft detects a fire, whereupon the shaft section in which this detector 12 is arranged is assigned to a restricted area 30 (represented by guide rails 24 with a dot pattern).

Before the blocking area 30 is separated from the shaft sections adjacent to the blocking area 30 by moving the corresponding closing elements 13 into the closed state, it is checked whether a car 22 is in a passage of the blocking area 30. If a car 22 is in a passage of the restricted area 30, the car 22 is moved out of the blocked area 30 without a stop.

Furthermore, before the closing elements 13 are brought into the closed state, it is checked whether there is a risk of collision between a closing element 13 to be closed and a car 22. If a car 22 is moved in a direction of travel in the direction of a closing element 13 which is to be brought into the closed state, the car 22 is braked when the distance between the car 22 and this closing element 13 has a value between a first limit value and a corresponds to the second limit. If there is a risk of collision between the car 22 and the closing element 13, the car 22 is passed through the blocking area 30 without stopping before the blocking area 30 passes through the Transfer of the closing elements 13 to the adjacent shaft sections is separated. As soon as a risk of collision due to the transfer into the closed state of the closing elements 13, which have to be closed in order to separate the blocking area 30 from the adjacent shaft sections, is excluded, passage clearance for the cars 22 through the blocking area 30 is withdrawn and the corresponding closing elements 13, as shown in Fig. 5, transferred to the closed state.

If the blocking area 30 has been separated from the adjacent shaft sections, two variants result. In a first variant, the cars 22, which are located outside the blocking area 30, are moved to a predetermined stop, in particular a closest stop located in the direction of travel of the car 22, and are prevented from continuing on from this stop, so that there are those in the car 22 People can leave the car 22. In a second variant, the cages 22, which are located outside the restricted area 30, continue to be operated outside the restricted area 30 in normal operation.

6a and 6b show embodiments of a closing element 13 for a fire protection device 10 according to FIG. 5 in a top view.

6a, the closing element segment 134 of the closing element 13 is made in two parts. In a first embodiment, the two-part closing element segment 134 is designed as pivotable wing doors which, when the closing element 13 is open, are pivoted toward the shaft walls of the elevator shaft. In a second or further embodiment, the two-part closing element segment 134 is designed as sliding doors, roller blinds or folding blinds, which are pushed out of the travel path of the car 22 when the closing element 13 is open.

In the closed state of the closing element 13, the closing element segments 134 are pivoted or shifted into the elevator shaft, so that the two parts of the two-part closing element segment 134 form a closed plane.

6a, the two-part closing element segment 134 is designed such that the two parts of the closing element segment 134 meet in a central position of the guide rail 24 in the closed state of the closing element 13. Both parts of the Locking element segments 134 each have a recess 131 adapted to the shape of the guide rail 24 for the guide rail 24.

When the closing element 13 is closed, the closing element segment 134 divides at the point at which the two parts of the closing element segment 134 meet, and because of the recesses 131 for the guide rail 24, there is a leak in the closing element 13. In order to prevent smoke and / or or to counteract a fire due to this leakage of the closing element 13, the closing element 13 has a deformable sealing material 133 at these points. In particular, the sealing material 133 is a fire protection foam, by means of which the closing element 13 is sealed in the closed state. Alternatively or additionally, the sealing material 133 is rubber lips or a brush seal.

6b shows a closing element 13 in which the closing element segment 134 is made in one piece, the closing element segment 134 being designed as a pivotable wing door in a first embodiment, as a sliding door in a second embodiment and as a roller blind or folding roller blind in a further embodiment.

The closing element segment 134 of the embodiment of the closing element 13 shown in FIG. 6b has a recess 133 for the guide rail 24 in each of the above-mentioned configurations, the recess 133 being adapted to the shape of the guide rail 24, so that in the closed state of the closing element 13 there is a distance between the closing element segment 134 to the guide rail 24 is minimal. A leakage of the closing element 13 resulting from this distance between the closing element segment 134 and the guide rail 24 is counteracted by filling this distance with a deformable sealing material 133. The sealing material 133 is in particular a fire protection foam.

FIGS. 7a, 7b, 8a, and 8b show exemplary embodiments of a closing element 13 arranged on a shaft change unit 27. The shaft change unit comprises a stationary part 27a and a movable part 27b arranged thereon.

In the embodiment shown in FIGS. 7a and 7b, the closing element 13 comprises fire-resistant fixed partition walls 135, with the movable part 27b on both sides of the Manhole exchange unit 27b each has a circular fixed partition 135 firmly connected to the movable part 27b.

Here, the movable part 27b is designed as a rail element which is rotatably mounted on the stationary part 27a.

The fixed partitions 135 are spaced apart on the rotatable part 27b so that a car can be passed freely between the fixed partitions 135.

7a, the rotatable part 27b is oriented in a first orientation direction, so that a direction of travel results in a car in which the car is moved in the first elevator shaft 21a. In this case, a fixed partition 135 of the closing element 13 closes an opening 28 to the second elevator shaft 21b.

In FIG. 7b, the rotatable part 27b is oriented in a second orientation direction, so that there is a direction of travel for a car in which the car is moved in the second elevator shaft 21b. In each case, a fixed partition 135 of the closing element 13 closes an opening 28 to the first elevator shaft 21b.

The fixed partition walls 135 arranged on the movable part 27b of the shaft change unit are thus rotated with the movable part 27b in normal operation.

If a fire or smoke is detected in the first / second elevator shaft, the movable part 27b is rotated so that the shaft changing unit 27 with the fixed partition walls 135 is separated from the first / second elevator shaft.

In this way, a safe route for a car is provided and at the same time the shaft change unit 27 is protected.

8a and 8b show an exemplary embodiment of a closing element 13 arranged on a shaft change unit 27, the closing element 13 having a fixed partition 135 on both sides of the movable part 27b, and two movable partitions 135 on each of the two fixed partitions 135 136, which can be set in motion via drives 137 in order to convert the closing element 13 from an open state into a closed state. 8a shows the closing element 13 in an open state. In normal operation of the elevator system, the two movable partition walls 136 arranged on a fixed partition wall 135 are arranged parallel to the fixed partition wall 135, the movable partition walls 136 not forming an overhang relative to the fixed partition wall 135.

Depending on a signal output by the detector of the fire protection device, the control unit transfers the closing element 13 between the open state and the closed state in that the control unit controls the respective drive 137 of the movable partition 136 which is to be transferred.

Each of the movable partitions 136 can be individually controlled via the control unit.

If the orientation of the movable part 27b corresponds, as shown in FIGS. 8a, 8b, to the direction of the second elevator shaft 27b, the fixed partition walls 135 close the openings 28 'to the adjacent first elevator shaft 27a.

If smoke and / or a fire is now detected by the detector, the control unit controls one or more drives 137, so that an opening 28 ″ or both openings 28 ″ adjoining the shaft changing unit 27 to the second elevator shaft are partially or entirely through the movable partition walls 136 be closed.

8b shows the closing element 13 in the closed state, in which all movable partitions 136 are completely closed. In this state, the shaft changing unit 27 is completely isolated from the rest of the elevator system. In the event of a fire, the shaft change unit 27 would thus be protected from being damaged by the fire.

LIST OF REFERENCE NUMBERS

10 fire protection device

11 control unit

12 detector

13 closing element

13a first locking element sector

13b second locking element sector

131 recess for guide rail

132 Recess for rope guide

133 sealing material

134 locking element segment

134a locking element segment of the first locking element sector

134a ‘first locking element segment of the first locking element sector 134a” second locking element segment of the first locking element sector 134b locking element segment of the second locking element sector

134b ‘first locking element segment of the second locking element sector 134b ″ second locking element segment of the second locking element sector

135 fixed partition

136 movable partition

137 drive

20 elevator system

21 elevator shaft

21a First elevator shaft

21b second elevator shaft

211 shaft section

211a first shaft section

211b second shaft section

212 stop

213 platform

22 car

23 counterweight

24 guide rail

25 suspension cable Trailing rope / chain

Inputbins unit

27a Stationary part 27b Movable part Opening restricted area

Claims

Expectations

1. Fire protection device (10) for an elevator system (20),

which elevator system (20) comprises at least one elevator shaft (21) in which at least one car (22) can be moved along at least one guide rail (24), characterized in that

that the fire protection device (10) comprises at least one closing element (13), which closing element (13) is arranged in the elevator shaft (21) and can be transferred between an open state and a closed state.

2. Fire protection device (10) according to claim 1,

characterized,

that the fire protection device (10) comprises a control unit (11) and at least one detector (12).

3. Fire protection device (10) according to claim 2,

characterized,

that the elevator shaft (21) has at least two shaft sections (211a, 211b), the closing element (13) being arranged between two adjacent shaft sections (211a, 211b) of the elevator shaft (21), and

wherein the closing element (13) separates the two adjacent shaft sections (211a, 211b) from one another in the closed state.

4. Fire protection device (10) according to one of claims 2 to 3,

characterized,

that the detector (12) is arranged in at least one of the shaft sections (211a, 211b) and / or the detector (12) is arranged on the car (22), in particular in the car (22).

5. Fire protection device (10) according to one of claims 2 to 4,

characterized,

that the control unit (11) is set up to transfer the closing element (13) depending on a signal output by the detector (12) between the open state and the closed state.

6. Fire protection device (10) according to one of the preceding claims,

characterized,

that at least one of the closing elements (13) has recesses (131, 132) for carrying out at least one shaft element running in the direction perpendicular to the closing element (13), in particular at least one guide rail (24) and / or at least one rope (25, 26).

7. fire protection device (10) according to claim 6,

characterized,

that the recesses (131, 132) are arranged in at least one locking element segment (134) of the locking element (13), in particular on at least one edge of the at least one locking element segment (134).

8. Fire protection device (10) according to one of the preceding claims,

characterized,

that the elevator system (20) comprises at least one first elevator shaft and at least one second elevator shaft and at least one shaft changing unit (27), by means of which shaft changing unit (27) the car (22) can be changed from the first elevator shaft to the second elevator shaft, and

wherein the first elevator shaft and the second elevator shaft each have at least two shaft sections (211),

wherein the closing element (13) is arranged between two mutually adjacent shaft sections (211) of the first elevator shaft and / or

the closing element (13) is arranged between two adjacent shaft sections (211) of the second elevator shaft,

and

wherein the closing element (13) in the closed state separates the two adjacent shaft sections (211) of the first elevator shaft and / or the two adjacent shaft sections (211) of the second elevator shaft from one another.

9. Fire protection device (10) according to one of the preceding claims,

characterized,

that the elevator installation (20) comprises at least one first elevator shaft and at least one second elevator shaft and at least one shaft changing unit (27), by means of which shaft changing unit (27) the car (22) from the first elevator shaft

(21a) can be changed into the second elevator shaft (21b), and

the shaft exchange unit (27) having a stationary part (27a) and a movable part

Part (27b), wherein

the stationary part (27a) is fixedly arranged on a shaft wall in an intersection area of the first elevator shaft (21a) and the second elevator shaft (21b) and the movable part (27b) is arranged movably, in particular rotatably, on the stationary part (27a), and

wherein the direction of travel of the car (22) is predetermined by the orientation of the movable part (27b), and

the closing element (13) being arranged on the shaft change unit (27).

10. Fire protection device (10) according to claim 9,

characterized,

that the closing element (13) is arranged on the movable part (27b), the closing element (13) comprising at least one fixed partition (135), and wherein

the at least one fixed partition (135) is arranged on the movable part (27b) such that the closing element (13) always closes at least one opening to the first elevator shaft (21a) or to the second elevator shaft (21b), which

Opening is in a direction deviating from the direction of travel of the car (22), in particular orthogonal to the direction of travel of the car (22).

11. Fire protection device (10) according to claim 10,

characterized,

that the closing element (13) comprises at least one movable partition (136) which is movably arranged on the at least one fixed partition (135), the control unit (11) being set up to use the at least one movable partition (136) as a function of one of to transmit the signal (12) output between the open state and the closed state.

12. Fire protection device (10) according to claim 11,

characterized,

that the at least one movable partition (136) is carried along with the fixed partition (135) on which the movable partition (136) is arranged during normal operation of the elevator installation.

13. A method for operating a fire protection device (10) for an elevator system (20), in particular according to one of claims 1 to 12,

which elevator system (20) comprises at least one elevator shaft (21) in which at least one car (22) can be moved along at least one guide rail (24), and which elevator shaft (21) comprises at least two shaft sections (211a, 211b), characterized in that .

that the process includes the following steps:

• Detection of smoke and / or fire, in particular by means of a detector

(12);

• as a result of detection of smoke and / or a fire, transferring a closing element (13) from an open state into a closed state, which closing element (13) is arranged in the elevator shaft (21).

14. The method according to claim 13,

characterized,

that the detector (12), when it detects smoke and / or fire, sends a signal to a control unit (11), the signal containing information about in which shaft section of the at least two shaft sections (211a, 211b) of the elevator shaft (21 ) the detector (12) is arranged when the detector (12) is arranged in the elevator shaft (21), and / or

on which car (22) the detector (12) is arranged if the detector (12) is arranged on the car (22).

15. The method according to claim 14,

characterized,

that if the detector (12) which sends the signal to the control unit (11) is arranged on the car (22),

the car (22) approaches a predetermined stop (212), in particular a closest stop (212), which is located in the direction of travel of the car (22) into which the car (22) is moved at the time the Detector (12) sends the signal to the control unit (11), or

the car (22) is prevented from continuing at a stop (212) at which the car (22) is at the time at which the detector (12) sends the signal to the control unit (11).

16. The method according to any one of claims 14 to 15,

characterized,

that the shaft section (21 la, 21 lb) is assigned to a restricted area (30), in which shaft section (211a, 211b) the detector (12) is arranged which sends the signal to the control unit (11), and / or

in which shaft section (211a, 211b) the stop (212) is located, which stop (212) the car (22) on which the detector (12) sending the signal to the control unit (11) is arranged, and / or

in which shaft section (211a, 211b) the stop (212) is located, at which stop (212) the car (22), on which the detector (12) sending the signal to the control unit (11) is arranged, for a further journey is prevented.

17. The method according to claim 16,

characterized,

that it is checked whether the car (22) and / or at least one counterweight (23) is in a passage of the restricted area (30) and, in the case of an existing passage, the car (22) and / or the counterweight (23) without Halt is moved out of the restricted area (30).

18. The method according to any one of claims 16 to 17,

characterized,

that it is checked whether a transfer of the closing element (13) into the closed state poses a risk of collision between the car (22) and / or the counterweight (23) with the closing element (13).

19. The method according to claim 18,

characterized,

that when the car (22) and / or the counterweight (23) is moved in a direction of travel in the direction of the closing element (13) which is to be brought into the closed state

in the event of a risk of collision the car (22) and / or the counterweight (23) is passed through the restricted area (30) without a stop, or

if the distance from the car (22) and / or from the counterweight (23) to this closing element (13) corresponds to a value between a first limit value and a second limit value, the car (22) and / or the counterweight (23) brakes becomes.

20. The method according to claim 19,

characterized,

that the car (22) which has been braked is moved to a stop (212) located outside the restricted area (30), in particular to a stop (212) located outside the blocked area (30), which corresponds to the position of the braked car (22 ) is the closest.

21. The method according to any one of claims 17 to 20,

characterized,

that the control unit (11) withdraws passage for the car (22) and / or for the counterweight (23) through the shaft section (211a, 211b), which is assigned to the restricted area (30), and the closing element (13) into the closed state is transferred as soon as

the passage of the car (22) and / or the counterweight (23) has ended, so that the car (22) and / or the counterweight (23) has been moved out of the restricted area (30), and / or A risk of collision of the car (22) and / or the counterweight (23) with the closing element (13) is excluded by moving the closing element (13) into the closed state.

22. The method according to any one of claims 13 to 21,

characterized,

that by transferring the closing element (13) into the closed state, a first shaft section (211a, 211b) from a neighboring second one

Shaft section (21 la, 21 lb) is separated.

23. The method according to any one of claims 13 to 22,

characterized,

that when the closing element (13) is in the closed state, a suppression is generated in the blocking region (30), and / or

At least in the shaft section (211a, 211b), which adjoins the blocking area (30), pressure ventilation is activated.

24. The method according to any one of claims 16 to 23,

characterized,

that when the closing element (13) is in the closed state, the elevator car (22) is moved outside the blocking area (30) in normal operation.

25. elevator system (20) comprising a fire protection device according to one of claims 1 to 12 or comprising a control unit (11) which is set up to carry out a method according to one of claims 13 to 24,

characterized in that

the elevator installation (20) comprises at least one elevator shaft (21), in which at least one car (22) can be moved along at least one guide rail (24), and the elevator shaft (21) has at least two shaft sections (211a, 211b), one of which Closing element (13) is arranged between two adjacent shaft sections (211a, 211b) of the elevator shaft (21).