EP2125592B1 - Lift cabin with a braking device fitted in the area of the lift cabin to stop and brake the lift cabin, a lift system with at least one such lift cabin and a method for stopping and braking a lift cabin - Google Patents

Lift cabin with a braking device fitted in the area of the lift cabin to stop and brake the lift cabin, a lift system with at least one such lift cabin and a method for stopping and braking a lift cabin Download PDF

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Publication number
EP2125592B1
EP2125592B1 EP07845642.3A EP07845642A EP2125592B1 EP 2125592 B1 EP2125592 B1 EP 2125592B1 EP 07845642 A EP07845642 A EP 07845642A EP 2125592 B1 EP2125592 B1 EP 2125592B1
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EP
European Patent Office
Prior art keywords
elevator car
connecting means
brake
force
brake unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP07845642.3A
Other languages
German (de)
French (fr)
Other versions
EP2125592A1 (en
Inventor
Steffen Grundmann
Gert Silberhorn
Hans Kocher
Michael STÜBI
Georg Halasy-Wimmer
Johann Jungbecker
Stefan Johannes Schmitt
Bernward Bayer
Andreas Emmerich
Andreas Pohlmann
Karl-Hermann Tegge
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inventio AG
Original Assignee
Inventio AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to EP07845642.3A priority Critical patent/EP2125592B1/en
Publication of EP2125592A1 publication Critical patent/EP2125592A1/en
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Publication of EP2125592B1 publication Critical patent/EP2125592B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B17/00—Hoistway equipment
    • B66B17/34—Safe lift clips; Keps

Definitions

  • the invention relates to an elevator car with a braking device arranged in the region of the elevator car for holding and braking the elevator car, an elevator system with at least one such elevator car, and a method for holding and braking such an elevator car.
  • An elevator system essentially serves the vertical transport of goods or persons.
  • the elevator installation includes for this purpose one or more elevator cars, for receiving the goods or persons, which elevator car can be moved along a guideway.
  • the elevator installation is installed in a building and the elevator car transports goods or persons from and to different floors of this building.
  • the elevator installation is installed in a driving shaft of the building and, in addition to the elevator car, it contains suspension elements which connect the elevator car with a counterweight.
  • the guideway to guide the elevator car is often a guide rail, which is attached to the building, or in the chute.
  • each of the elevator cars advantageously has its own drive system, but advantageously uses the same guide track or guide rail.
  • Such elevator systems are equipped with braking systems, which on the one hand hold the elevator car in a floor stop and / or can decelerate and hold the elevator car in the event of a fault.
  • the braking system cooperates for the purpose of braking with a braking track, which is usually in the guide rail is integrated.
  • Such elevator system can of course be arranged outside the building, in which case the guide rails can be part of a scaffold.
  • Conventional safety gears are not designed to be able to hold the elevator car in a holding position, for example for loading the elevator car, since they can only be put into operation again by a service specialist.
  • a classic braking device for an elevator car is known in which an actuating device activates a braking device via levers.
  • a braking device to an elevator car is known, which is arranged in the region of the elevator car and which can be used for holding and braking.
  • the braking device shown there includes a fluidic brake unit which can cooperate with a brake rail, an actuating device which can actuate the brake unit and a connecting means which connects the brake unit with the brake unit in a force-active manner.
  • the actuating device is a hydraulic pressure station, which is connected via hydraulic connecting means to individual brake units and thereby force-actuated the hydraulic brake units.
  • Force-active here means that a generated in the actuator hydraulic pressure actively defines a resulting in the brake unit contact pressure of brake pads to the brake rail.
  • This solution uses hydraulic pressure generators. This is expensive and expensive in procurement and maintenance. Such components are also noise intensive and to limit the effects of leaks, safety precautions must be taken.
  • cabin brake devices are also increasingly used, for example, to hold an elevator car in a floor stop, during the loading process, or to quickly and smoothly correct erroneous behavior of the elevator car.
  • the object of the invention is now to provide a braking device, which quickly brought in an irregularity in the operation of an elevator car to use and after their use quickly back to their ready position can be brought.
  • the device should be quiet and easy to use.
  • An elevator car arranged in a driving shaft is equipped with a braking device for holding and braking the elevator car.
  • the braking device consists of a brake unit which, with appropriate operation, can cooperate with a brake rail.
  • the braking device further includes an actuating device, which can generate an actuator force FA, and a connecting means, which connects the actuating device for transmitting the actuator force FA force-actively with the brake unit.
  • a force-active connection means that the brake unit generates a contact force FN and thus ei-ne, resulting from a Bremsreibwert, resulting braking force, which is directly dependent on the Aktuatorkraft FA.
  • a small contact force FN thus causes a small braking force
  • a large actuator force FA causes a correspondingly large contact force FN.
  • the connecting means is now a traction means and the braking unit is designed such that it is in the unloaded position, i. if there is no actuator force FA in open position. Open position means the braking device, or, the brake unit does not brake.
  • pulling means advantageously a pull rope, a pull rod or a pull chain is used.
  • the advantage of this invention is that in an irregularity in the operation of an elevator car, the braking device by means of the mechanical connection means, or the traction means quickly brought into use and can be quickly brought back into their ready position after ih rem use.
  • the brake unit is designed such that it, when no Aktuatorkraft FA is present, in the open position, and the connecting means is carried out by the traction means, as a result of rapid and safe operation and Again, a slight provision can be made.
  • this device is very quiet, since during operation of the elevator system no pumps or the like must be in operation.
  • the device is easy to use because it can be easily checked and understood by a person skilled in the art. This arises already from the fact that the principle of this braking device has long been known and proven in bicycles.
  • this braking device is arranged in the area of the elevator car.
  • the braking device can be easily used to hold the elevator car in a floor or the braking device can in an unexpected behavior of the elevator car, if they are suddenly slipped away, for example, in the open floor access. Thanks to the simple operation, the braking device can be easilytechnischge sets.
  • the brake rail is a component of a guide rail on which the elevator car is guided along.
  • the location of the braking device is arbitrary. It can be built up or underneath the elevator car or below the elevator car, or it can be integrated in the elevator car structure, for example in a canopy, cabin floor or in side walls.
  • the elevator car according to the invention is installed in an elevator installation which may include one or more such elevator cars which can be moved in a common drive shaft.
  • an elevator installation which may include one or more such elevator cars which can be moved in a common drive shaft.
  • the braking device has at least two brake units, which advantageously at opposite boundary edges the elevator car are arranged and which cooperate with a respective brake, or guide rail.
  • the actuating device generates an actuator force FA for actuating the brake units (9), this actuator force FA being transmitted substantially symmetrically to the brake units by means of connecting means.
  • the actuating device is substantially centrally, is arranged in the middle between two brake units, wherein in each case a first connecting means to a first brake unit and a second connecting means is connected to a second brake unit.
  • This embodiment is advantageous because the holding and braking forces due to the two-sided arrangement of the brake units are introduced substantially symmetrically in the elevator car and the actuator can be centrally, for example, in the middle of a roof of the elevator car. This makes the control easy.
  • a position of the actuating device is essentially defined by a balance of the first and the second connecting means.
  • a limiting means is provided, which limits a lateral displacement of the actuating device in case of failure of one of the connecting means and thus maintains the actuator force FA in the remaining connecting means.
  • This increases the safety of the braking device, since a residual braking force remains despite failure of a connecting means. If, for example, the braking force of the braking device is designed with a safety factor of 2, holding would be ensured even if one of the connecting means fails.
  • the failure of one of the connecting means or contact of the limiting means by the actuator can be monitored with a switch and upon detection of this condition, a maintenance can be initialized or operation of the elevator system can be limited.
  • the brake unit includes a power transmission, which converts the actuator force FA transmitted by the connecting means into a contact pressure FN and at the same time effects a reinforcement of this contact force FN.
  • a power transmission which converts the actuator force FA transmitted by the connecting means into a contact pressure FN and at the same time effects a reinforcement of this contact force FN.
  • This is achieved, for example, by a lever mechanism which converts the actuator force FA into a contact force FN via a toggle lever, via eccentrics or else via dome disks.
  • With such translation or reinforcing means can be achieved large power gains.
  • This is advantageous because commercially available connecting means such as a Bowden cable can be used as a connecting means.
  • the actuating device is a Switzerlandspannvorraum used to generate the Aktuatorkraft FA.
  • the tensioning device when appropriately controlled, pulls or relieves the first and second connection means under control. This is done for example via a spindle gear, which attracts or relaxes one or both connecting means to the actuating device.
  • the spindle gear is designed such that the tensioning device retains its currently set position in the absence of a control signal or a supply energy.
  • the supply energy supplies the drive of the spindle gear or the actuating device with preferably electrical energy and the control signal is the control command to tension the connecting means or to relax the connecting means.
  • the advantages are to be seen in the fact that the braking force determination takes place centrally in the common actuating device and the actuator force is necessarily transmitted to the decentralized brake units with the same effect. In addition, it is ensured with the selected Glasspannvorraum that a set state is maintained.
  • the actuator force is essentially transmitted by train. This allows the use of favorable traction means such as a pull rope, a pull chain or a pull rod.
  • the actuator includes a sensor for fixing the current Aktuatorkraft FA and this sensor is optional for Control, regulation and monitoring used.
  • the sensor is, for example, a force measuring sensor or a spring-loaded position sensor, which detects a compression of a spring, via which the actuator force is transmitted, and accordingly, the position sensor is a measure of the Aktuatorkraft.
  • the position sensor for example, the positions of the actuator force are reached or the actuating device is adjusted, and the tensioning device is controlled on the basis of these signals.
  • actual force or pressure sensors can be used. The use of such a sensor is advantageous because a certain tensile force can be achieved independently of a state of wear and further, that any deviations can be detected and accordingly reported to a service station.
  • connection means with a pulley.
  • the actuator force FA transmitted by the connection means to the brake unit can thus be amplified in accordance with a pulley transfer factor. This makes it possible to achieve a holding or braking force required for a specific elevator installation.
  • An advantageous embodiment provides that several elevator cars according to the invention are installed, each with a braking device in a common driving shaft.
  • the braking devices of these elevator cars can be used not only to secure the elevator car in a floor stop but also to ensure a sufficient safety distance between several elevator cars. This is advantageous because it is possible to intervene quickly with the braking device if, for example, two elevator cars move toward each other at a small distance or if a distance between two successively moving elevator cars is reduced inadmissibly.
  • the braking device can quickly, or preventively, be brought into action and they can be reset after the elimination of the fault reason just as quickly.
  • the braking device can be mounted in addition to a safety gear on the elevator car. This is advantageous because it protects a known and safety-tested emergency brake system the elevator car against extreme errors, such as the failure of suspension elements, and the task of the braking device primarily for errors and / or use in areas of stops or in the vicinity of track limits, such as Fahrschachtende or another elevator car, can be aligned.
  • the elevator installation 1 shown includes an elevator car 3, for receiving goods or persons.
  • the elevator car 3 is movable along a guide rail 7.
  • the elevator installation 1 is installed in a building and the elevator car 3 transports goods or persons from and to different floors E1... EN of this building.
  • the elevator installation 1 is installed in a drive shaft 2 of the building and, in addition to the elevator car 3, it contains support means 5 which connect the elevator car 3 to a counterweight 4. By means of a drive 6, which acts on the support means 5, the elevator car 3 is moved.
  • the guideway for guiding the elevator car 3 is a guide rail 7, which is fixedly arranged in the building or in the driving shaft 2.
  • each of the elevator cars 3, 3a has its own drive system, but they use the same guideway or guide rail 7.
  • the elevator car 3 is equipped with a braking device 8 which hold the elevator car 3 in a holding position and / or the elevator car 3 in one Deceleration trap can hold and hold.
  • the holding position is normally a floor stop.
  • the braking device 8 cooperates for the purpose of braking with a brake rail 7, which is integrated in the illustrated example in the guide rail 7.
  • the illustrated elevator car 3 is according to Fig.
  • both elevator cars 3, 3a each with a above the elevator car 3, 3a arranged braking device 8, 8a and arranged below the elevator car catching device 21, 21a provided.
  • Fig. 2 shows a plan view of the elevator car 3 of in Fig. 1 illustrated embodiment.
  • the braking device 8 consists of a first brake unit 9, 9.1 and a second brake unit 9, 9.2.
  • the brake units 9 are arranged at respectively opposite boundary edges 3.1 of the elevator car 3 and they act there on the guide rail 7, which at the same time the Brake rail forms.
  • the braking device 8 includes an actuating device 10, which is arranged substantially in the middle between the two brake units 9.
  • the actuating device 10 is connected to the two-sided brake units 9 by means of connecting means 11 or a first connecting means 11.1 and a second connecting means 11.2. By contraction of the two connecting means 11, the brake units 9 are acted upon synchronously with the same force.
  • the connecting means 11 in the example shown are traction cables such as used for a Bowden cable.
  • tension rods with articulated connection points or even a pull chain could be used instead of tension cables.
  • the connecting means is only designed to transmit a tensile force to the brake unit 9, it is a traction means.
  • Fig. 3 shows a possible embodiment of the brake unit 9.
  • an unoperated brake is shown, which is connected in a known manner via a floating storage with one-sided stop to the elevator car 3.
  • This clamping force or contact force FN creates a braking force by means of which the elevator car 3 is braked or held.
  • the brake unit is force-actuated by the connecting means 11, that is to say without an actuator force FA transmitted by the connecting means 11, the brake unit is in the open or non-braking position.
  • Fig. 5 shows another embodiment of the brake unit 9.
  • a, also un-actuated brake is shown, which fixed to the elevator car 3rd is connected.
  • the connecting means 11, or the traction cable 12 is, in the case of actuation, via a power transmission lever 14 to the movable brake pad and thus clamps the guide rail 7 firmly.
  • a braking force is produced by means of which the elevator car 3 is braked or held.
  • a translation lever 14 can be mechanical force ratios of 1:10, for example, achieve.
  • a further power transmission is also provided by the traction cable 12 is umgesammlung via a pulley in the ratio 2: 1.
  • an actuator force FA can be amplified by a factor of 2x10.
  • the resulting contact force FN is thus twenty times the value of the actuator force.
  • FN 20 x FA
  • the gain factor is exemplary.
  • the brake unit 9 simultaneously assumes a guidance of the elevator car 3, at least in the area of the brake unit 9.
  • the brake unit 9 is connected to the elevator car 3 as shown.
  • On the side of the movable or deliverable brake plate 30, a solid guide pad 32 is arranged. This solid guide pad 32 assumes normal executives during normal operation.
  • an elastically mounted guide pad 33 is arranged on the side of the fixed brake pad 31.
  • An elastic bearing 34 of the guide pad 33 is dimensioned such that usual executives as they result in normal operation result in no deflection of the elastic guide pad 33.
  • the brake unit 9 delivered that is, the movable brake pad 30 delivered by actuator force FA
  • the movable brake pad 30 pushes in front of the fixed guide pad 32 and then pushes the mutual elastic guide pad 33 against the elastic bearing 34 back to the fixed brake pad 31 for Concerning the guide rail 7 comes and then can develop its braking effect.
  • This embodiment of storage is not mandatory. Other designs, like those in Fig. 3 illustrated floating storage are also applicable.
  • Fig. 4 shows an example of an actuating device 10.
  • the first connec tion means 11.1 is by means of a tensioning device 15, consisting of a spindle and spindle motor, which can move the first connecting means 11.1 in the actuator 10.
  • the mutual second connecting means 11.2 is connected to the actuating device 10 via a force measuring device 19.
  • a clamping force FA generated by the tensioning device 15 is thus symmetrical about the connecting means 11.1, 11.2 to the brake units 9 (in Fig. 4 not shown).
  • the tensioning device 15 is controlled.
  • the tensioning device 15 when the actuator force FA is being set up, the tensioning device 15 is switched off when a set force point is reached, as a result of which the actuator force achieved is maintained upright, and when the actuator force is released the tension is released until the corresponding force information is measured.
  • the illustrated tensioning device 15 is selected such that in the event of a failure of a power supply 17, which may be a mains power source AC or a DC voltage source DC or if a control signal "Control" fails, a currently achieved actuator force FA is maintained. This is achieved for example by appropriate choice of a spindle pitch.
  • Fig. 6 shows another example of an actuating device 10.
  • the first and second connecting means 11.1, 11.2 are connected by means of tensioning device 15, consisting of a spindle with opposite thread pitches together.
  • tensioning device 15 consisting of a spindle with opposite thread pitches together.
  • the two connecting means 11 are clamped against each other.
  • force sensors 19 the current Aktuatorkraft FA measured and the Switzerlandspannvoriques 15 are controlled accordingly.
  • the spindle pushes against one of the limiting means 13 in case of failure of one of the connecting means 11 and the Aktuatorkraft can still be constructed in the remaining connecting means 11. Since the actuator force FA is measured in both connection means 11, such an error can be fast be determined and appropriate repairs can be initialized.
  • Such an actuator may typically provide an actuator force FA of about 1500N. With a force increase in the force transmission 14 of the factor ten, the result is thus, with a direct connection of the connecting means 11 to the brake unit 9, as in FIG Fig. 3 shown, a contact force FN of about 15,000N.
  • a contact force FN of about 15,000N.
  • a safety factor of 2 to hold a 125% loaded elevator car and a 50% balance, this corresponds to an elevator car with a permissible transport load of about 1200 kg.
  • This design is exemplary. Other safety factors, balancing and other designs of actuators 10, power transmissions 14 or braking units 9, etc. are of course possible.
  • Fig. 7 shows an application of the invention in an elevator installation with several elevator cars 3 in a driving shaft 2.
  • Each of the elevator cars 3, 3a is equipped with a braking device 8, 8a.
  • This braking device 8, 8a is used inter alia to maintain a sufficient safety distance 20 between two elevator cars 3, 3a. If, for example, a distance detector determines that the distance between two elevator cars decreases unexpectedly rapidly, the braking device 8, 8a of the following elevator car 3, 3a is activated, thus preventing a collision. Also, the braking device is activated at a stop of one of the elevator cars 3, 3a in a floor E, ie operated. This prevents the elevator car 3, 3a from swinging or slipping off during loading.
  • the existing safety gear 21 is still available.
  • the design criteria for the braking device 8 are reduced.
  • the braking device 8 for example, using redundant power supplies and Controls, also used as a safety brake.
  • the elevator expert can variously change the set shapes and arrangements.
  • the tensioning device 15 shown can be carried out instead of spindle drives with linear motors or Aufwickelmotoren or the like, or the connecting means 11 can be deflected to the actuator 10.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Description

Die Erfindung betrifft eine Aufzugskabine mit einer im Bereiche der Aufzugskabine angeordneten Bremseinrichtung zum Halten und Bremsen der Aufzugskabine, eine Aufzugsanlage mit mindestens einer solchen Aufzugskabine und ein Verfahren zum Halten und Bremsen einer solchen Aufzugskabine.The invention relates to an elevator car with a braking device arranged in the region of the elevator car for holding and braking the elevator car, an elevator system with at least one such elevator car, and a method for holding and braking such an elevator car.

Eine Aufzugsanlage dient im Wesentlichen dem vertikalen Transport von Gütern oder Personen. Die Aufzugsanlage beinhaltet zu diesem Zweck eine oder mehrere Aufzugskabinen, zur Aufnahme der Güter oder Personen, welche Aufzugskabine entlang einer Führungsbahn verfahrbar ist. In der Regel ist die Aufzugsanlage in einem Gebäude eingebaut und die Aufzugskabine transportiert Güter oder Personen von und zu verschiedenen Stockwerken dieses Gebäudes. In einer gebräuchlichen Ausführung ist die Aufzugsanlage in einem Fahrschacht des Gebäudes eingebaut und sie enthält neben der Aufzugskabine Tragmittel, welche die Aufzugskabine mit einem Gegengewicht verbinden. Mittels eines Antriebes, der wahlweise auf die Tragmittel, direkt auf die Aufzugskabine oder auf das Gegengewicht einwirkt, wird die Aufzugskabine bewegt. Die Führungsbahn zum Führen der Aufzugskabine ist vielfach eine Führungsschiene, welche am Gebäude, bzw. im Fahrschacht befestigt ist. Bei mehreren Aufzugskabinen in einem Fahrschacht verfügt vorteilhafterweise jede der Aufzugskabinen über ein eigenes Antriebssystem, sie verwenden aber vorteilhafterweise dieselbe Führungsbahn, bzw. Führungsschiene. Derartige Aufzugsanlagen sind mit Bremssystemen ausgerüstet, welche einerseits die Aufzugskabine in einer Stockwerkhalt halten und /oder die Aufzugskabine in einem Fehlerfalle abbremsen und halten können. Das Bremssystem wirkt zum Zwecke des Bremsens mit einer Bremsbahn zusammen, welche in der Regel in die Führungsschiene integriert ist. Derartige Aufzugsanlage lassen sich selbstverständlich auch ausserhalb des Gebäudes anordnen, wobei dann die Führungsschienen Teil eines Gerüstes sein können. Übliche Fangvorrichtungen sind nicht ausgelegt um die Aufzugskabine in einer Halteposition, beispielsweise zum Beladen der Aufzugskabine halten zu können, da sie nur von einem Service-Fachmann wieder in Betrieb genommen werden können. Aus der US 2003/0062224 ist eine klassische Bremseinrichtung für eine Aufzugskabine bekannt, in der eine Betätigungseinrichtung über Hebel eine Bremseinrichtung aktiviert. Aus EP0648703 ist eine Bremseinrichtung zu einer Aufzugskabine bekannt, welche im Bereiche der Aufzugskabine angeordnet ist und welche zum Halten und Bremsen verwendet werden kann. Die dort gezeigte Bremseinrichtung beinhaltet dabei eine fluidische Bremseinheit welche mit einer Bremsschiene zusammenwirken kann, eine Betätigungseinrichtung welche die Bremseinheit betätigen kann und ein Verbindungsmittel, welches die Bremseinheit kraftaktiv mit der Bremseinheit verbindet. Die Betätigungseinrichtung ist eine hydraulische Druckstation, welche über hydraulische Verbindungsmittel zu einzelnen Bremseinheiten verbunden ist und dadurch die hydraulischen Bremseinheiten kraftaktiv betätigt. Kraftaktiv bedeutet hierbei, dass ein in der Betätigungseinrichtung erzeugter hydraulischer Druck aktiv eine in der Bremseinheit resultierende Anpresskraft von Bremsbelägen an die Bremsschiene definiert. Diese Lösung verwendet hydraulische Druckerzeuger. Dies ist teuer und aufwändig in der Beschaffung und in der Wartung. Derartige Komponenten sind zudem Geräuschintensive und um Auswirkungen von Leckagen zu begrenzen sind Sicherheitsvorkehrungen zu treffen.An elevator system essentially serves the vertical transport of goods or persons. The elevator installation includes for this purpose one or more elevator cars, for receiving the goods or persons, which elevator car can be moved along a guideway. As a rule, the elevator installation is installed in a building and the elevator car transports goods or persons from and to different floors of this building. In a common embodiment, the elevator installation is installed in a driving shaft of the building and, in addition to the elevator car, it contains suspension elements which connect the elevator car with a counterweight. By means of a drive which acts selectively on the support means, directly on the elevator car or on the counterweight, the elevator car is moved. The guideway to guide the elevator car is often a guide rail, which is attached to the building, or in the chute. In the case of several elevator cars in a lift shaft, each of the elevator cars advantageously has its own drive system, but advantageously uses the same guide track or guide rail. Such elevator systems are equipped with braking systems, which on the one hand hold the elevator car in a floor stop and / or can decelerate and hold the elevator car in the event of a fault. The braking system cooperates for the purpose of braking with a braking track, which is usually in the guide rail is integrated. Such elevator system can of course be arranged outside the building, in which case the guide rails can be part of a scaffold. Conventional safety gears are not designed to be able to hold the elevator car in a holding position, for example for loading the elevator car, since they can only be put into operation again by a service specialist. From the US 2003/0062224 a classic braking device for an elevator car is known in which an actuating device activates a braking device via levers. Out EP0648703 a braking device to an elevator car is known, which is arranged in the region of the elevator car and which can be used for holding and braking. The braking device shown there includes a fluidic brake unit which can cooperate with a brake rail, an actuating device which can actuate the brake unit and a connecting means which connects the brake unit with the brake unit in a force-active manner. The actuating device is a hydraulic pressure station, which is connected via hydraulic connecting means to individual brake units and thereby force-actuated the hydraulic brake units. Force-active here means that a generated in the actuator hydraulic pressure actively defines a resulting in the brake unit contact pressure of brake pads to the brake rail. This solution uses hydraulic pressure generators. This is expensive and expensive in procurement and maintenance. Such components are also noise intensive and to limit the effects of leaks, safety precautions must be taken.

Heute werden Kabinenbremseinrichtungen zudem vermehrt verwendet um beispielsweise eine Aufzugskabine in einem Stockwerkhalt, während des Beladungsvorgangs festzuhalten oder um fehlerhaftes Verhalten der Aufzugskabine schnell und sanft zu korrigieren.Today, cabin brake devices are also increasingly used, for example, to hold an elevator car in a floor stop, during the loading process, or to quickly and smoothly correct erroneous behavior of the elevator car.

Die Aufgabe der Erfindung besteht nun darin eine Bremseinrichtung bereitzustellen, welche bei einer Unregelmässigkeit im Betrieb einer Aufzugskabine schnell zum Einsatz gebracht und nach ihrem Einsatz schnell wieder in ihre Bereitschaftsstellung gebracht werden kann. Dabei soll die Einrichtung geräuscharm und einfach in der Anwendung sein.The object of the invention is now to provide a braking device, which quickly brought in an irregularity in the operation of an elevator car to use and after their use quickly back to their ready position can be brought. The device should be quiet and easy to use.

Die in den unabhängigen Patentansprüchen definierte Erfindung löst die Aufgabe.The invention defined in the independent claims solves the problem.

Eine in einem Fahrschacht angeordnete Aufzugskabine ist mit einer Bremseinrichtung zum Halten und Bremsen der Aufzugskabine ausgerüstet. Die Bremseinrichtung besteht aus einer Bremseinheit welche, bei entsprechender Betätigung, mit einer Bremsschiene zusammenwirken kann. Die Bremseinrichtung beinhaltet weiter eine Betätigungseinrichtung, welche eine Aktuatorkraft FA erzeugen kann, und ein Verbindungsmittel, welches die Betätigungseinrichtung zum Übertragen der Aktuatorkraft FA kraftaktiv mit der Bremseinheit verbindet. Eine kraftaktive Verbindung bedeutet, dass die Bremseinheit eine Anpresskraft FN und damit ei-ne, durch einen Bremsreibwert definierte, resultierende Bremskraft erzeugt, welche direkt abhängig von der Aktuatorkraft FA ist. Eine geringe Anpresskraft FN bewirkt somit eine kleine Bremskraft, eine grosse Aktuatorkraft FA bewirkt eine entsprechend grosse Anpresskraft FN. Erfindungsgemäss ist nun das Verbindungsmittel ein Zugmittel und die Bremseinheit ist derart ausgeführt, dass sie in unbeaufschlagter Stellung, d.h. wenn keine Aktuatorkraft FA anliegt, in Offenstellung ist. Offenstellung bedeutet, die Bremseinrichtung, bzw., die Bremseinheit bremst nicht. Als Zugmittel wird vorteilhafterweise ein Zugseil, eine Zugstange oder auch eine Zugkette verwendet.An elevator car arranged in a driving shaft is equipped with a braking device for holding and braking the elevator car. The braking device consists of a brake unit which, with appropriate operation, can cooperate with a brake rail. The braking device further includes an actuating device, which can generate an actuator force FA, and a connecting means, which connects the actuating device for transmitting the actuator force FA force-actively with the brake unit. A force-active connection means that the brake unit generates a contact force FN and thus ei-ne, resulting from a Bremsreibwert, resulting braking force, which is directly dependent on the Aktuatorkraft FA. A small contact force FN thus causes a small braking force, a large actuator force FA causes a correspondingly large contact force FN. According to the invention, the connecting means is now a traction means and the braking unit is designed such that it is in the unloaded position, i. if there is no actuator force FA in open position. Open position means the braking device, or, the brake unit does not brake. As pulling means advantageously a pull rope, a pull rod or a pull chain is used.

Der Vorteil dieser Erfindung liegt darin, dass bei einer Unregelmässigkeit im Betrieb einer Aufzugskabine die Bremseinrichtung mittels des mechanischen Verbindungsmittel, bzw. des Zugmittels schnell zum Einsatz gebracht und nach ih rem Einsatz schnell wieder zurück in ihre Bereitschaftsstellung gebracht werden kann. Dazu ist die Bremseinheit derart ausgeführt, dass sie, wenn keine Aktuatorkraft FA anliegt, in Offenstellung ist, und das Verbindungsmittels ist durch das Zugmittel ausgeführt, da dadurch eine rasche und sichere Betätigung und auch wieder eine leichte Rückstellung erfolgen kann. Zudem ist diese Einrichtung sehr geräuscharm, da beim Betrieb der Aufzugsanlage keine Pumpen oder ähnliches im Betrieb sein müssen. Im Weiteren ist die Einrichtung einfach in der Anwendung, da sie durch einen Fachmann leicht überprüft und verstanden werden kann. Dies ergibt sich schon aus dem Umstand, dass das Prinzip dieser Bremseinrichtung bei Fahrrädern seit langem bekannt und bewährt ist.The advantage of this invention is that in an irregularity in the operation of an elevator car, the braking device by means of the mechanical connection means, or the traction means quickly brought into use and can be quickly brought back into their ready position after ih rem use. For this purpose, the brake unit is designed such that it, when no Aktuatorkraft FA is present, in the open position, and the connecting means is carried out by the traction means, as a result of rapid and safe operation and Again, a slight provision can be made. In addition, this device is very quiet, since during operation of the elevator system no pumps or the like must be in operation. Furthermore, the device is easy to use because it can be easily checked and understood by a person skilled in the art. This arises already from the fact that the principle of this braking device has long been known and proven in bicycles.

Erfindungsgemäss ist diese Bremseinrichtung im Bereiche der Aufzugskabine angeordnet. Damit kann die Bremseinrichtung einfach zum Halten der Aufzugskabine in einem Stockwerk verwendet werden oder die Bremseinrichtung kann bei einem unerwarteten Verhalten der Aufzugskabine, wenn sie beispielsweise bei geöffnetem Stockwerkzugang plötzlich wegrutscht gebremst werden. Dank der einfachen Betätigung kann die Bremseinrichtung einfach wieder zurückge setzt werden. In der Regel ist die Bremsschiene ein Bestandteil einer Führungsschiene an welcher die Aufzugskabine entlang geführt wird. Auch ist der Anbauort der Bremseinrichtung beliebig. Sie kann oberhalb der Aufzugskabine oder unterhalb der Aufzugskabine auf, bzw. untergebaut sein, oder sie kann in die Aufzugskabinenstruktur, bspw. in einem Kabinendach, Kabinenboden oder auch in Seitenwänden integriert sein.According to the invention, this braking device is arranged in the area of the elevator car. Thus, the braking device can be easily used to hold the elevator car in a floor or the braking device can in an unexpected behavior of the elevator car, if they are suddenly slipped away, for example, in the open floor access. Thanks to the simple operation, the braking device can be easily zurückge sets. As a rule, the brake rail is a component of a guide rail on which the elevator car is guided along. Also, the location of the braking device is arbitrary. It can be built up or underneath the elevator car or below the elevator car, or it can be integrated in the elevator car structure, for example in a canopy, cabin floor or in side walls.

Im Weiteren ist die erfindungsgemässe Aufzugskabine in einer Aufzugsanlage eingebaut welche eine oder mehrere in einem gemeinsamen Fahrschacht verfahrbare derartige Aufzugskabinen beinhalten kann. Bei der Verwendung mehre rer derartiger Aufzugskabine in einem Fahrschacht kann beispielsweise eine Distanz dieser Aufzugskabine zu einem Fahrschachtende oder zu einer vor- oder nachfahrenden Aufzugskabine unter Berücksichtigung der Fahrparameter überwacht werden und bei Unterschreitung bestimmter Distanzen kann die betroffene Aufzugskabine schnell gestoppt werden.Furthermore, the elevator car according to the invention is installed in an elevator installation which may include one or more such elevator cars which can be moved in a common drive shaft. When using several rer such elevator car in a lift shaft, for example, a distance of this elevator car to a Fahrschachtende or to a leading or trailing elevator car, taking into account the driving parameters are monitored and falls below certain distances, the affected elevator car can be stopped quickly.

In einer vorteilhaften Ausführung weist die Bremseinrichtung mindestens zwei Bremseinheiten auf, welche vorteilhafterweise an entgegen gesetzten Begrenzungskanten der Aufzugskabine angeordnet sind und welche mit jeweils einer Brems-, bzw. Führungsschiene zusammenwirken. Die Betätigungseinrichtung generiert eine Aktuatorkraft FA zur Betätigung der Bremseinheiten (9), wobei diese Aktuatorkraft FA mittels Verbindungsmittel im Wesentlichen symmetrisch zu den Bremseinheiten übertragen wird. Entsprechend ist die Betätigungseinrichtung im Wesentlichen zentral, in der Mitte zwischen zwei Bremseinheiten angeordnet ist, wobei jeweils ein erstes Verbindungsmittel zu einer ersten Bremseinheit und eine zweites Verbindungsmittel zu einer zweiten Bremseinheit verbunden ist.In an advantageous embodiment, the braking device has at least two brake units, which advantageously at opposite boundary edges the elevator car are arranged and which cooperate with a respective brake, or guide rail. The actuating device generates an actuator force FA for actuating the brake units (9), this actuator force FA being transmitted substantially symmetrically to the brake units by means of connecting means. Accordingly, the actuating device is substantially centrally, is arranged in the middle between two brake units, wherein in each case a first connecting means to a first brake unit and a second connecting means is connected to a second brake unit.

Diese Ausführung ist vorteilhaft, da die Halte- und Bremskräfte wegen der beidseitigen Anordnung der Bremseinheiten im Wesentlichen symmetrisch in die Aufzugskabine eingeleitet werden und die Betätigungseinrichtung kann zentral, beispielsweise in der Mitte des eines Dachs der Aufzugskabine angeordnet werden. Dadurch wird die Kontrolle einfach.This embodiment is advantageous because the holding and braking forces due to the two-sided arrangement of the brake units are introduced substantially symmetrically in the elevator car and the actuator can be centrally, for example, in the middle of a roof of the elevator car. This makes the control easy.

Vorteilhafterweise ist eine Lage der Betätigungseinrichtung im Wesentlichen durch ein Gleichgewicht des ersten und des zweiten Verbindungsmittels definiert. Dadurch ist eine identische Aktuatorkraft zu den beiden Bremseinheiten gegeben. Im Weiteren ist ein Begrenzungsmittel vorgesehen, welches bei Versagen eines der Verbindungsmittel, eine seitliche Verschiebung der Betätigungseinrichtung begrenzt und somit die Aktuatorkraft FA im verbleibenden Verbindungsmittel aufrechterhält. Dies erhöht die Sicherheit der Bremseinrichtung, da trotz Ausfall eines Verbindungsmittels eine Restbremskraft bestehen bleibt. Ist beispielsweise die Bremskraft der Bremseinrichtung mit einem Sicherheitsfaktor von 2 ausgelegt, wäre ein Halten auch bei Versagen eines der Verbindungsmittel gewährleistet. Der Ausfall eines der Verbindungsmittel bzw. ein Berühren des Begrenzungsmittels durch die Betätigungseinrichtung kann mit einem Schalter überwacht werden und bei Feststellung dieses Zustandes kann eine Wartung initialisiert werden oder ein Betrieb der Aufzugsanlage kann eingeschränkt werden.Advantageously, a position of the actuating device is essentially defined by a balance of the first and the second connecting means. As a result, an identical actuator force is given to the two brake units. In addition, a limiting means is provided, which limits a lateral displacement of the actuating device in case of failure of one of the connecting means and thus maintains the actuator force FA in the remaining connecting means. This increases the safety of the braking device, since a residual braking force remains despite failure of a connecting means. If, for example, the braking force of the braking device is designed with a safety factor of 2, holding would be ensured even if one of the connecting means fails. The failure of one of the connecting means or contact of the limiting means by the actuator can be monitored with a switch and upon detection of this condition, a maintenance can be initialized or operation of the elevator system can be limited.

Vorteilhafterweise beinhaltet die Bremseinheit eine Kraftübersetzung, welche die vom Verbindungsmittel übertragene Aktuatorkraft FA in eine Anpresskraft FN umsetzt und gleichzeitig eine Verstärkung dieser Anpresskraft FN bewirkt. Dies wird beispielsweise durch eine Hebelmechanik erreicht, welche die Aktuatorkraft FA über einen Kniehebel, über Excenter oder auch über Kalottenscheiben in eine Anpresskraft FN umsetzt. Mit derartigen Übersetzungs- oder Verstärkungsmittel lassen sich grosse Kraftverstärkungen erreichen. Dies ist vorteilhaft, da deswegen handelsübliche Verbindungsmittel wie beispielsweise ein Bowdenzug als Verbindungsmittel verwendet werden kann.Advantageously, the brake unit includes a power transmission, which converts the actuator force FA transmitted by the connecting means into a contact pressure FN and at the same time effects a reinforcement of this contact force FN. This is achieved, for example, by a lever mechanism which converts the actuator force FA into a contact force FN via a toggle lever, via eccentrics or else via dome disks. With such translation or reinforcing means can be achieved large power gains. This is advantageous because commercially available connecting means such as a Bowden cable can be used as a connecting means.

In einer Variante der Erfindung wird zur Erzeugung der Aktuatorkraft FA in der die Betätigungseinrichtung eine Zugspannvorrichtung verwendet. Die Zugspannvorrichtung zieht, wenn entsprechend angesteuert das erste und das zweite Verbindungsmittel gesteuert zusammen oder entlastet es. Dies erfolgt beispielsweise über ein Spindelgetriebe, welches eines oder beide Verbindungsmittel zur Betätigungseinrichtung zuzieht bzw. entspannt. Das Spindelgetriebe ist derart ausgeführt dass die Zugspannvorrichtung bei Fehlen eines Steuersignals oder einer Versorgungsenergie ihre aktuell eingestellte Position behält. Die Versorgungsenergie versorgt den Antrieb des Spindelgetriebes bzw. der Betätigungseinrichtung mit vorzugsweise elektrischer Energie und das Steuersignal gibt den Steuerbefehl das Verbindungsmittel zu spannen oder das Verbindungsmittel zu entspannen. Die Vorteile sind darin zu sehen, dass die Bremskraftbestimmung zentral in der gemeinsamen Betätigungseinrichtung erfolgt und die Aktuatorkraft zwangsläufig gleich wirkend zu den dezentralen Bremseinheiten übertragen wird. Zudem ist mit der gewählten Zugspannvorrichtung sichergestellt, dass ein eingestellter Zustand beibehalten wird. Die Aktuatorkraft wird im Wesentlichen durch Zug übertragen. Dies erlaubt die Verwendung günstiger Zugmittel wie beispielsweise eines Zugseils, einer Zugkette oder einer Zugstange.In a variant of the invention, the actuating device is a Zugspannvorrichtung used to generate the Aktuatorkraft FA. The tensioning device, when appropriately controlled, pulls or relieves the first and second connection means under control. This is done for example via a spindle gear, which attracts or relaxes one or both connecting means to the actuating device. The spindle gear is designed such that the tensioning device retains its currently set position in the absence of a control signal or a supply energy. The supply energy supplies the drive of the spindle gear or the actuating device with preferably electrical energy and the control signal is the control command to tension the connecting means or to relax the connecting means. The advantages are to be seen in the fact that the braking force determination takes place centrally in the common actuating device and the actuator force is necessarily transmitted to the decentralized brake units with the same effect. In addition, it is ensured with the selected Zugspannvorrichtung that a set state is maintained. The actuator force is essentially transmitted by train. This allows the use of favorable traction means such as a pull rope, a pull chain or a pull rod.

Vorteilhafterweise beinhaltet die Betätigungseinrichtung einen Sensor zur Fest stellung der aktuellen Aktuatorkraft FA und dieser Sensor wird wahlweise zur Steuerung, Regelung und Überwachung verwendet. Der Sensor ist beispielsweise ein Kraftmesssensor oder ein federbelasteter Positionssensor, welcher eine Kompression einer Feder, über welche die Aktuatorkraft übertragen wird feststellt, und dementsprechend der Positionssensor ein Mass für die Aktuatorkraft darstellt. Im Positionsensor werden beispielsweise die Positionen Aktuatorkraft erreicht oder Betätigungseinrichtung eingestellt und aufgrund dieser Signale die Zugspannvorrichtung gesteuert. Selbstverständlich sind auch eigentliche Kraft- oder Drucksensoren verwendbar. Die Verwendung eines derartigen Sensors ist vorteilhaft, da dadurch eine bestimmte Zugkraft unabhängig eines Verschleisszustandes erreicht werden kann und weiter, dass allfällige Abweichungen erkannt und dementsprechend einer Servicestelle gemeldet werden können.Advantageously, the actuator includes a sensor for fixing the current Aktuatorkraft FA and this sensor is optional for Control, regulation and monitoring used. The sensor is, for example, a force measuring sensor or a spring-loaded position sensor, which detects a compression of a spring, via which the actuator force is transmitted, and accordingly, the position sensor is a measure of the Aktuatorkraft. In the position sensor, for example, the positions of the actuator force are reached or the actuating device is adjusted, and the tensioning device is controlled on the basis of these signals. Of course, actual force or pressure sensors can be used. The use of such a sensor is advantageous because a certain tensile force can be achieved independently of a state of wear and further, that any deviations can be detected and accordingly reported to a service station.

Als vorteilhafte Erweiterung ergibt sich die Möglichkeit das Verbindungsmittel mit einem Flaschenzug umzuhängen. Die vom Verbindungsmittel zur Bremseinheit übertragene Aktuatorkraft FA kann somit entsprechend einem Umhängefaktor des Flaschenzuges verstärkt werden. Damit lässt sich ein für eine bestimmte Aufzugsanlage erforderliche Halte- bzw. Bremskraft erreichen.As an advantageous extension, there is the possibility to relocate the connecting means with a pulley. The actuator force FA transmitted by the connection means to the brake unit can thus be amplified in accordance with a pulley transfer factor. This makes it possible to achieve a holding or braking force required for a specific elevator installation.

Eine vorteilhafte Ausführung sieht vor, dass mehrere erfindungsgemässe Aufzugskabinen mit jeweils einer Bremseinrichtung in einem gemeinsamen Fahrschacht eingebaut sind. Die Bremseinrichtungen dieser Aufzugskabinen können nicht nur zur Sicherung der Aufzugskabine in einem Stockwerkhalt sondern ebenso zur Sicherung eines genügenden Sicherheitsabstandes zwischen mehreren Aufzugskabinen verwendet werden. Dies ist vorteilhaft, da mit der Bremseinrichtung schnell eingegriffen werden kann wenn sich beispielsweise zwei Aufzugskabinen in kleiner Distanz aufeinander zu bewegen oder wenn sich ein Abstand zweier nacheinander fahrender Aufzugskabinen unzulässig verringert. Die Bremseinrichtung kann schnell, oder auch vorbeugend, zur Wirkung gebracht werden und sie kann nach Beseitigung des Störungsgrundes ebenso schnell wieder zurückgestellt werden.An advantageous embodiment provides that several elevator cars according to the invention are installed, each with a braking device in a common driving shaft. The braking devices of these elevator cars can be used not only to secure the elevator car in a floor stop but also to ensure a sufficient safety distance between several elevator cars. This is advantageous because it is possible to intervene quickly with the braking device if, for example, two elevator cars move toward each other at a small distance or if a distance between two successively moving elevator cars is reduced inadmissibly. The braking device can quickly, or preventively, be brought into action and they can be reset after the elimination of the fault reason just as quickly.

Die Bremseinrichtung kann zusätzlich zu einer Fangvorrichtung an der Aufzugskabine angebaut werden. Dies ist vorteilhaft, da damit ein bekanntes und sicherheitsgeprüftes Notbremssystem die Aufzugskabine gegen extreme Fehler, wie das Versagen von Tragmitteln, schützt und die Aufgabe der Bremseinrichtung primär auf Fehler und / oder Benutzung im Bereiche von Haltestellen oder in der Nähe von Fahrwegbegrenzungen, wie beispielsweise ein Fahrschachtende oder eine andere Aufzugskabine, ausgerichtet werden kann.The braking device can be mounted in addition to a safety gear on the elevator car. This is advantageous because it protects a known and safety-tested emergency brake system the elevator car against extreme errors, such as the failure of suspension elements, and the task of the braking device primarily for errors and / or use in areas of stops or in the vicinity of track limits, such as Fahrschachtende or another elevator car, can be aligned.

Weitere Ausgestaltungen ergeben sich aus den folgenden Ausführungsbeispielen. Die Erfindung wird anhand eines Ausführungsbeispieles im Zusammenhang mit den schematischen Figuren näher erläutert. Es zeigen:

Fig. 1
eine Ansicht einer Aufzugsanlage mit Aufzugskabine und oberhalb der Aufzugskabine angeordneter Bremseinrichtung,
Fig. 2
eine Draufsicht der Aufzugsanlage gemäss Figur 1,
Fig. 3
eine Ansicht einer ersten Ausführung einer Bremseinheit mit Verbindungsmittel,
Fig. 4
eine Ansicht einer ersten Ausführung einer Betätigungseinrichtung mit Verbindungsmittel,
Fig. 5
eine Ansicht einer anderen Ausführung einer Bremseinheit mit Verbin10 dungsmittel,
Fig. 6
eine Ansicht einer anderen Ausführung einer Betätigungseinrichtung mit Verbindungsmittel, und
Fig. 7
eine Ansicht einer Aufzugsanlage mit mehreren Aufzugskabinen in einem Fahrschacht und oberhalb der Aufzugskabinen angeordneten 15 Bremseinrichtungen.
Further embodiments will become apparent from the following embodiments. The invention will be explained in more detail using an exemplary embodiment in conjunction with the schematic figures. Show it:
Fig. 1
a view of an elevator installation with elevator car and above the elevator car arranged braking device,
Fig. 2
a plan view of the elevator according to FIG. 1 .
Fig. 3
a view of a first embodiment of a brake unit with connecting means,
Fig. 4
a view of a first embodiment of an actuator with connecting means,
Fig. 5
a view of another embodiment of a brake unit with Verbin10 tion medium,
Fig. 6
a view of another embodiment of an actuator with connecting means, and
Fig. 7
a view of an elevator system with several elevator cars in a lift shaft and above the elevator cars arranged 15 braking devices.

Gleichwirkende Teile sind in allen Figuren mit gleichen Bezugszeichen versehen. Eine mögliche Gesamtanordnung einer Aufzugsanlage 1 ist in Fig. 1 dargestellt. Die gezeigte Aufzugsanlage 1 beinhaltet eine Aufzugskabine 3, zur Aufnahme von Gütern oder Personen. Die Aufzugskabine 3 ist entlang einer Führungsschiene 7 verfahrbar. Die Aufzugsanlage 1 ist in einem Gebäude eingebaut und die Aufzugskabine 3 transportiert Güter oder Personen von und zu verschiedenen Stockwerken E1...EN dieses Gebäudes. In einer hier dargestellten Ausführung ist die Aufzugsanlage 1 in einem Fahrschacht 2 des Gebäudes eingebaut und sie enthält neben der Aufzugskabine 3 Tragmittel 5, welche die Aufzugskabine 3 mit einem Gegengewicht 4 verbinden. Mittels eines Antriebes 6, der auf die Tragmittel 5 einwirkt, wird die Aufzugskabine 3 bewegt. Die Führungsbahn zum Führen der Aufzugskabine 3ist eine Führungsschiene 7, welche fest im Gebäude, bzw. im Fahrschacht 2 angeordnet ist. Bei mehreren Aufzugskabinen 3, 3a in einem Fahrschacht 2, wie in Fig. 7 dargestellt verfügt vorteilhafterweise jede der Aufzugskabinen 3, 3a über ein eigenes Antriebssystem, sie verwenden aber dieselbe Führungsbahn, bzw. Führungsschiene 7. Die Aufzugskabine 3 ist mit einer Bremseinrichtung 8 ausgerüstet welche die Aufzugskabine 3 in einer Halteposition halten und /oder die Aufzugskabine 3 in einem Fehlerfalle abbremsen und halten kann. Die Halteposition ist im Normalfall ein Stockwerkhalt. Die Bremseinrichtung 8 wirkt zum Zwecke des Bremsens mit einer Bremsschiene 7 zusammen, welche im dargestellten Beispiel in die Führungsschiene 7 integriert ist. Im Weiteren ist die dargestellte Aufzugskabine 3 gemäss Fig. 1 mit einer Fangvorrichtung 21 ausgerüstet, welche die Aufzugskabine 3 im Falle einer extremen Übergeschwindigkeit oder gar eines Tragmittelversagens abbremsen würde. In Fig. 7 sind in analoger Ausführung beide Aufzugskabinen 3, 3a mit jeweils einer oberhalb der Aufzugskabine 3, 3a angeordneter Bremseinrichtung 8, 8a und einer unterhalb der Aufzugskabine angeordneten Fangvorrichtung 21, 21a versehen.Equivalent parts are provided with the same reference numerals in all figures. One possible overall arrangement of an elevator installation 1 is in Fig. 1 shown. The elevator installation 1 shown includes an elevator car 3, for receiving goods or persons. The elevator car 3 is movable along a guide rail 7. The elevator installation 1 is installed in a building and the elevator car 3 transports goods or persons from and to different floors E1... EN of this building. In an embodiment shown here, the elevator installation 1 is installed in a drive shaft 2 of the building and, in addition to the elevator car 3, it contains support means 5 which connect the elevator car 3 to a counterweight 4. By means of a drive 6, which acts on the support means 5, the elevator car 3 is moved. The guideway for guiding the elevator car 3 is a guide rail 7, which is fixedly arranged in the building or in the driving shaft 2. In the case of several elevator cars 3, 3a in a lift shaft 2, as in FIG Fig. 7 Advantageously, each of the elevator cars 3, 3a has its own drive system, but they use the same guideway or guide rail 7. The elevator car 3 is equipped with a braking device 8 which hold the elevator car 3 in a holding position and / or the elevator car 3 in one Deceleration trap can hold and hold. The holding position is normally a floor stop. The braking device 8 cooperates for the purpose of braking with a brake rail 7, which is integrated in the illustrated example in the guide rail 7. In addition, the illustrated elevator car 3 is according to Fig. 1 equipped with a safety gear 21, which would decelerate the elevator car 3 in the event of extreme overspeed or even a Tragmittelversagens. In Fig. 7 are in an analogous embodiment, both elevator cars 3, 3a, each with a above the elevator car 3, 3a arranged braking device 8, 8a and arranged below the elevator car catching device 21, 21a provided.

Fig. 2 zeigt eine Draufsicht auf die Aufzugskabine 3 der in Fig. 1 dargestellten Ausführung. Die Bremseinrichtung 8 besteht aus einer ersten Bremseinheit 9, 9.1 und einer zweiten Bremseinheit 9, 9.2. Die Bremseinheiten 9 sind an jeweils entgegen gesetzten Begrenzungskanten 3.1 der Aufzugskabine 3 angeordnet und sie wirken dort auf die Führungsschiene 7 ein, welche zugleich die Bremsschiene bildet. Im Weiteren beinhaltet die Bremseinrichtung 8 eine Betätigungseinrichtung 10, welche im Wesentlichen in der Mitte zwischen den zwei Bremseinheiten 9 angeordnet ist. Die Betätigungseinrichtung 10 ist mittels Verbindungsmitteln 11 bzw. einem ersten Verbindungsmittel 11.1 und einem zweiten Verbindungsmittel 11.2 zu den beidseitigen Bremseinheiten 9 verbunden. Durch ein Zusammenziehen der beiden Verbindungsmittel 11 werden die Bremseinheiten 9 synchron mit derselben Kraft beaufschlagt. Dies bedeutet, dass die Betätigungseinrichtung 10 im Wesentlichen in Kraftrichtung frei hängt. Selbstverständlich sind nicht dargestellte Befestigungsmittel vorhanden, welche ein Verdrehen der Betätigungseinrichtung 10 verhindern aber gleichzeitig eine allenfalls begrenzte Verschiebung in Kraftrichtung der Verbindungsmittel 11 ermöglichen. Dies ist notwendig um unterschiedliche Längungen in den Verbindungsmitteln zu ermöglichen. Die Verbindungsmittel 11 im dargestellten Beispiel sind Zugseile wie beispielsweise für einen Bowdenzug verwendet. Anstelle von Zugseilen könnten natürlich auch Zugstangen mit gelenkigen Anschlussstellen oder auch ein Zugkette verwendet werden. Das Verbindungsmittel ist jedoch lediglich ausgelegt um eine Zugkraft zur Bremseinheit 9 zu übertragen, es ist ein Zugmittel. Fig. 2 shows a plan view of the elevator car 3 of in Fig. 1 illustrated embodiment. The braking device 8 consists of a first brake unit 9, 9.1 and a second brake unit 9, 9.2. The brake units 9 are arranged at respectively opposite boundary edges 3.1 of the elevator car 3 and they act there on the guide rail 7, which at the same time the Brake rail forms. In addition, the braking device 8 includes an actuating device 10, which is arranged substantially in the middle between the two brake units 9. The actuating device 10 is connected to the two-sided brake units 9 by means of connecting means 11 or a first connecting means 11.1 and a second connecting means 11.2. By contraction of the two connecting means 11, the brake units 9 are acted upon synchronously with the same force. This means that the actuating device 10 hangs freely in the direction of the force. Of course, fasteners, not shown, are present, which prevent rotation of the actuator 10 but at the same time allow a possibly limited shift in the direction of force of the connecting means 11. This is necessary to allow different elongations in the connecting means. The connecting means 11 in the example shown are traction cables such as used for a Bowden cable. Of course, tension rods with articulated connection points or even a pull chain could be used instead of tension cables. However, the connecting means is only designed to transmit a tensile force to the brake unit 9, it is a traction means.

Fig. 3 zeigt eine mögliche Ausführung der Bremseinheit 9. Im Beispiel ist eine unbetätigte Bremse gezeigt, welche in bekannte Art und Weise über eine schwimmende Lagerung mit einseitigem Anschlag zur Aufzugskabine 3 verbunden wird. Das Verbindungsmittel 11, bzw. das Zugseil 12 stellt, im Betätigungsfalle, über einen Kraft-Übersetzungshebel 14 einen beweglichen Bremsbelag zu und klemmt damit die Führungsschiene 7 fest. Durch diese Klemmkraft oder Anpresskraft FN entsteht eine Bremskraft mittels welcher die Aufzugskabine 3 abgebremst oder gehalten wird. Die Bremseinheit ist kraftaktiv durch das Verbindungsmittel 11 betätigt, das heisst ohne eine vom Verbindungsmittel 11 übertragene Aktuatorkraft FA ist die Bremseinheit in geöffneter, bzw. nicht bremsender Position. Fig. 3 shows a possible embodiment of the brake unit 9. In the example, an unoperated brake is shown, which is connected in a known manner via a floating storage with one-sided stop to the elevator car 3. The connecting means 11, or the traction cable 12, in the case of actuation, via a force transmission lever 14 to a movable brake pad and thus clamps the guide rail 7 firmly. By this clamping force or contact force FN creates a braking force by means of which the elevator car 3 is braked or held. The brake unit is force-actuated by the connecting means 11, that is to say without an actuator force FA transmitted by the connecting means 11, the brake unit is in the open or non-braking position.

Fig. 5 zeigt eine andere Ausführung der Bremseinheit 9. In diesem Beispiel ist eine, ebenfalls unbetätigte Bremse gezeigt, welche fest zur Aufzugskabine 3 verbunden wird. Das Verbindungsmittel 11, bzw. das Zugseil 12 stellt, im Betätigungsfalle, über einen Kraft-Übersetzungshebel 14 den beweglichen Bremsbelag zu und klemmt damit die Führungsschiene 7 fest. Durch diese Anpresskraft FN entsteht eine Bremskraft mittels welche die Aufzugskabine 3 abgebremst oder gehalten wird. Mit einem derartigen Übersetzungshebel 14 lassen sich mechanische Kraftübersetzungen von beispielsweise 1:10 erzielen. Im dargestellten Beispiel ist zudem eine weitere Kraftübersetzung vorgesehen, indem das Zugseil 12 über einen Flaschenzug im Verhältnis 2:1 umgehängt wird. Mit dieser Gesamtanordnung kann demzufolge eine Aktuatorkraft FA um den Faktor 2x10 verstärkt werden. Die resultierende Anpresskraft FN beträgt somit den zwanzigfachen Wert der Aktuatorkraft. FN = 20 x FA Der Verstärkungsfaktor ist beispielhaft. Selbstverständlich können unter Ausnützung verschiedener Hebelgeometrien, Kulissenformen, Excenterdrückmechaniken oder Kalottenscheiben sowie Variabilität der Umlenkungsanordnungen beim Verbindungsmittel die optimalen Verstärkungen in Berücksichtigung eines Betätigungsweges bestimmt werden. In diesem Beispiel übernimmt die Bremseinheit 9 zugleich eine Führung der Aufzugskabine 3, zumindest im Bereich der Bremseinheit 9. Die Bremseinheit 9 ist wie dargestellt fest zur Aufzugskabine 3 verbunden. Auf der Seite der beweglichen oder zustellbaren Bremsplatte 30 ist ein fester Führungsbelag 32 angeordnet. Dieser feste Führungsbelag 32 übernimmt im Normalbetrieb übliche Führungskräfte. Auf der Seite des festen Bremsbelages 31 ist ein elastisch gelagerter Führungsbelag 33 angeordnet. Eine elastische Lagerung 34 des Führungsbelages 33 ist derart Bemessen, dass übliche Führungskräfte wie sie sich im Normalbetrieb ergeben keine Einfederung des elastischen Führungsbelages 33 ergeben. Fig. 5 shows another embodiment of the brake unit 9. In this example, a, also un-actuated brake is shown, which fixed to the elevator car 3rd is connected. The connecting means 11, or the traction cable 12 is, in the case of actuation, via a power transmission lever 14 to the movable brake pad and thus clamps the guide rail 7 firmly. By means of this contact force FN, a braking force is produced by means of which the elevator car 3 is braked or held. With such a translation lever 14 can be mechanical force ratios of 1:10, for example, achieve. In the example shown, a further power transmission is also provided by the traction cable 12 is umgehängt via a pulley in the ratio 2: 1. Consequently, with this overall arrangement, an actuator force FA can be amplified by a factor of 2x10. The resulting contact force FN is thus twenty times the value of the actuator force. FN = 20 x FA The gain factor is exemplary. Of course, by taking advantage of various lever geometries, gate shapes, eccentric pressing mechanisms or calotte discs and variability of the deflection arrangements in the connecting means, the optimum gains can be determined in consideration of an actuating travel. In this example, the brake unit 9 simultaneously assumes a guidance of the elevator car 3, at least in the area of the brake unit 9. The brake unit 9 is connected to the elevator car 3 as shown. On the side of the movable or deliverable brake plate 30, a solid guide pad 32 is arranged. This solid guide pad 32 assumes normal executives during normal operation. On the side of the fixed brake pad 31, an elastically mounted guide pad 33 is arranged. An elastic bearing 34 of the guide pad 33 is dimensioned such that usual executives as they result in normal operation result in no deflection of the elastic guide pad 33.

Wird nun die Bremseinheit 9 zugestellt, das heisst der bewegliche Bremsbelag 30 mittels Aktuatorkraft FA zugestellt, schiebt sich der bewegliche Bremsbelag 30 vor den festen Führungsbelag 32 und drückt anschliessend den gegenseitigen elastischen Führungsbelag 33 gegen die elastische Lagerung 34 zurück, bis der feste Bremsbelag 31 zum Anliegen an die Führungsschiene 7 kommt und dann seine Bremswirkung entfalten kann. Diese Ausführungsart der Lagerung ist nicht zwingend. Andere Ausführungen, wie die in Fig. 3 dargestellte schwimmende Lagerung sind ebenso anwendbar.If now the brake unit 9 delivered, that is, the movable brake pad 30 delivered by actuator force FA, the movable brake pad 30 pushes in front of the fixed guide pad 32 and then pushes the mutual elastic guide pad 33 against the elastic bearing 34 back to the fixed brake pad 31 for Concerning the guide rail 7 comes and then can develop its braking effect. This embodiment of storage is not mandatory. Other designs, like those in Fig. 3 illustrated floating storage are also applicable.

Fig. 4 zeigt ein Beispiel einer Betätigungseinrichtung 10. Das erste Verbin ungsmittel 11.1 ist mittels einer Zugspannvorrichtung 15, bestehend aus einer Spindel und Spindelmotor, welche das erste Verbindungsmittel 11.1 in die Betätigungseinrichtung 10 einziehen kann. Das gegenseitige zweite Verbindungsmittel 11.2 ist über eine Kraftmesseinrichtung 19 zur Betätigungseinrichtung 10 verbunden. Eine durch die Zugspannvorrichtung 15 erzeugte Spannkraft FA wird somit über die Verbindungsmittel 11.1, 11.2 symmetrisch zu den Bremseinheiten 9 (in Fig. 4 nicht dargestellt) übertragen. Mittels dem Sensor, bzw. der Kraftmesseinrichtung 9 wird die Zugspannvorrichtung 15 gesteuert. D.h. beim Aufbauen der Aktuatorkraft FA wird die Zugspannvorrichtung 15 bei Erreichen eines eingestellten Kraftpunktes ausgeschalten, wodurch die erreichte Aktuatorkraft aufrechter erhalten bleibt und beim Lösen der Aktuatorkraft wird die Zugspannung abgebaut bis die entsprechende Kraftlosinformation gemessen wird. Die dargestellte Zugspannvorrichtung 15 ist derart gewählt, dass bei einem Ausfall einer Energieversorgung 17, welches eine Netzstromquelle AC oder eine Gleichspannungsquelle DC sein kann oder bei Ausfall eines Steuerungssignals "Control" eine aktuell erreichte Aktuatorkraft FA erhalten bleibt. Dies wird beispielsweise durch entsprechende Wahl einer Spindelsteigung erreicht. Fig. 4 shows an example of an actuating device 10. The first connec tion means 11.1 is by means of a tensioning device 15, consisting of a spindle and spindle motor, which can move the first connecting means 11.1 in the actuator 10. The mutual second connecting means 11.2 is connected to the actuating device 10 via a force measuring device 19. A clamping force FA generated by the tensioning device 15 is thus symmetrical about the connecting means 11.1, 11.2 to the brake units 9 (in Fig. 4 not shown). By means of the sensor, or the force measuring device 9, the tensioning device 15 is controlled. In other words, when the actuator force FA is being set up, the tensioning device 15 is switched off when a set force point is reached, as a result of which the actuator force achieved is maintained upright, and when the actuator force is released the tension is released until the corresponding force information is measured. The illustrated tensioning device 15 is selected such that in the event of a failure of a power supply 17, which may be a mains power source AC or a DC voltage source DC or if a control signal "Control" fails, a currently achieved actuator force FA is maintained. This is achieved for example by appropriate choice of a spindle pitch.

Fig. 6 zeigt ein anderes Beispiel einer Betätigungseinrichtung 10. Das erste und zweite Verbindungsmittel 11.1, 11.2 sind mittels Zugspannvorrichtung 15, bestehend aus einer Spindel mit gegenläufigen Gewindesteigungen zusammen verbunden. Durch Betätigen der Spindel mittels Spindelmotor, werden die beiden Verbindungsmittel 11 gegeneinander gespannt. Mittels Kraftsensoren 19 kann die aktuelle Aktuatorkraft FA gemessen und die Zugspannvorrichtung 15 entsprechend gesteuert werden. Bei dieser Ausführung stösst die Spindel bei einem Ausfall eines der Verbindungsmittel 11 gegen eines der Begrenzungsmittel 13 und die Aktuatorkraft kann im verbleibenden Verbindungsmittel 11 trotzdem aufgebaut werden. Da die Aktuatorkraft FA in beiden Verbindungsmitteln 11 gemessen wird kann ein derartiger Fehler schnell festgestellt werden und entsprechende Reparaturen können initialisiert werden. Eine derartige Betätigungseinrichtung kann typischerweise eine Aktuatorkraft FA von etwa 1500N erbringen. Bei einer Kraftverstärkung in der Kraftübersetzung 14 vom Faktor zehn ergibt sich somit, bei einer direkten Anbindung des Verbindungsmittels 11 an die Bremseinheit 9, wie in Fig. 3 dargestellt, eine Anpresskraft FN von etwa 15'000N. Bei Verwendung von zwei Bremseinheiten 9 wie in Fig.1 ersichtlich, und einem angenommenen Haftreibwert von 0.3, resultiert dementsprechend eine totale Haltekraft von 2 x 2 x 15'000 x 0.3 = 18'000N. Unter Verwendung eines Sicherheitsfaktors von 2 zum Halten einer mit 125% beladenen Aufzugskabine und einer Ausbalancierung von 50% entspricht dies somit einer Aufzugskabine mit einer zulässigen Transportlast von etwa 1200 kg. Diese Auslegung ist beispielhaft. Andere Sicherheitsfaktoren, Ausbalancierungen sowie andere Auslegungen von Betätigungseinrichtungen 10, Kraftübersetzungen 14 oder Bremseinheiten 9, usw. sind selbstverständlich möglich. Fig. 6 shows another example of an actuating device 10. The first and second connecting means 11.1, 11.2 are connected by means of tensioning device 15, consisting of a spindle with opposite thread pitches together. By actuating the spindle by means of a spindle motor, the two connecting means 11 are clamped against each other. By means of force sensors 19, the current Aktuatorkraft FA measured and the Zugspannvorrichtung 15 are controlled accordingly. In this embodiment, the spindle pushes against one of the limiting means 13 in case of failure of one of the connecting means 11 and the Aktuatorkraft can still be constructed in the remaining connecting means 11. Since the actuator force FA is measured in both connection means 11, such an error can be fast be determined and appropriate repairs can be initialized. Such an actuator may typically provide an actuator force FA of about 1500N. With a force increase in the force transmission 14 of the factor ten, the result is thus, with a direct connection of the connecting means 11 to the brake unit 9, as in FIG Fig. 3 shown, a contact force FN of about 15,000N. When using two brake units 9 as in Fig.1 can be seen, and an assumed coefficient of friction of 0.3, accordingly results in a total holding force of 2 x 2 x 15'000 x 0.3 = 18'000N. Thus, using a safety factor of 2 to hold a 125% loaded elevator car and a 50% balance, this corresponds to an elevator car with a permissible transport load of about 1200 kg. This design is exemplary. Other safety factors, balancing and other designs of actuators 10, power transmissions 14 or braking units 9, etc. are of course possible.

Fig. 7 zeigt eine Anwendung der Erfindung in einer Aufzugsanlage mit mehreren Aufzugskabinen 3 in einem Fahrschacht 2. Jede der Aufzugskabinen 3, 3a ist mit einer Bremseinrichtung 8, 8a ausgerüstet. Diese Bremseinrichtung 8, 8a wird unter anderem zur Einhaltung eines genügenden Sicherheitsabstandes 20 zwischen zwei Aufzugskabinen 3, 3a verwendet. Wird beispielsweise durch einen Abstandsdetektor festgestellt, dass sich die Distanz zwischen zwei Aufzugskabinen unerwartet schnell verringert, wird die Bremseinrichtung 8, 8a der nachfahrenden Aufzugskabine 3, 3a aktiviert, und so einer Kollision vorgebeugt. Auch wird die Bremseinrichtung bei einem Halt einer der Aufzugskabinen 3, 3a in einer dem Stockwerk E aktiviert, d.h. betätigt. Damit ist einem Schwingen oder einem Wegrutschen der Aufzugskabine 3, 3a beim Beladen vorgebeugt. Fig. 7 shows an application of the invention in an elevator installation with several elevator cars 3 in a driving shaft 2. Each of the elevator cars 3, 3a is equipped with a braking device 8, 8a. This braking device 8, 8a is used inter alia to maintain a sufficient safety distance 20 between two elevator cars 3, 3a. If, for example, a distance detector determines that the distance between two elevator cars decreases unexpectedly rapidly, the braking device 8, 8a of the following elevator car 3, 3a is activated, thus preventing a collision. Also, the braking device is activated at a stop of one of the elevator cars 3, 3a in a floor E, ie operated. This prevents the elevator car 3, 3a from swinging or slipping off during loading.

Wie in Fig. 1 und 7 ersichtlich ist in der Regel die bestehende Fangvorrichtung 21 weiterhin vorhanden. Damit sind die Auslegungskriterien für die Bremseinrichtung 8 reduziert. Selbstverständlich kann die Bremseinrichtung 8, beispielsweise unter Verwendung von redundanten Energieversorgungen und Steuerungen, auch als Sicherheitsbremse verwendet werden.As in Fig. 1 and 7 As a rule, the existing safety gear 21 is still available. Thus, the design criteria for the braking device 8 are reduced. Of course, the braking device 8, for example, using redundant power supplies and Controls, also used as a safety brake.

Bei Kenntnis der vorliegenden Erfindung kann der Aufzugsfachmann die gesetzten Formen und Anordnungen vielfältig verändern. Beispielsweise kann die gezeigte Zugspanneinrichtung 15 anstelle von Spindeltrieben auch mit Linearmotoren oder Aufwickelmotoren oder ähnlichem ausgeführt werden, oder die Verbindungsmittel 11 können zur Betätigungseinrichtung 10 umgelenkt werden.With knowledge of the present invention, the elevator expert can variously change the set shapes and arrangements. For example, the tensioning device 15 shown can be carried out instead of spindle drives with linear motors or Aufwickelmotoren or the like, or the connecting means 11 can be deflected to the actuator 10.

Claims (13)

  1. Elevator car (3) with a braking system (8) arranged in the area of the elevator car for holding and braking the same, said braking system (8) comprising:
    - A brake unit (9) which can interact with a brake rail (7), when actuated correspondingly, and the brake unit (9) has an open position, when it does not brake,
    - an actuating device (10), which can generate an actuator force FA, and
    - a connecting means (11) which connects the actuating device (10) in a force-active manner with the brake unit (9) for transmitting the actuator force FA,
    characterized in that the actuator force FA generated in the actuating device (9) causes a
    brake force of the brake unit (9), which corresponds to the actuator force FA, and that, when no actuator force FA is applied, the brake unit (9) is in its open position, and the connecting means (11) is a pulling means (12).
  2. Elevator car according to claim 1, characterized in that
    the braking system (8) has at least two brake units (9) which are advantageously arranged on opposite delimiting edges (3.1) of the elevator car (3), and which each interact with one respective brake rail (7), and
    that the actuating device (10), which generates the actuator force FA for actuating the brake units (9), is arranged substantially centrally in the middle between the two brake units (9), wherein a first connecting means (11.1) connects the actuating device (10) to a first brake unit (9.1) and a second connecting means (11.2) connects the actuating device (10) to a second brake unit (9.2).
  3. Elevator car according to one of the previous claims,
    characterized in that a position of the actuating device (10) is defined substantially by an equilibrium of the first and the second connecting means (11.1, 11.2), wherein in case of a failure of one of the connecting means (11.1, 11.2), a limiting means (13) maintains the actuator force FA in the remaining connecting means (11.1,11.2).
  4. Elevator car according to one of the previous claims,
    characterized in that the brake unit (9) contains a power transmission (14) which converts the actuator force FA transmitted by the connecting means (11) into a contact pressure FN and simultaneously causes an amplification of said contact pressure FN.
  5. Elevator car according to one of the previous claims,
    characterized in that the actuating device (10) contains a tensioning device (15) which, for generating the actuator force FA, pulls together or relaxes the first and the second connecting means (11.1, 11.2) in a controlled manner, wherein the tensioning device (15) maintains its currently set position in the absence of a control signal (16) or a supply energy (17).
  6. Elevator car according to one of the previous claims,
    characterized in that the connecting means (11) is suspended by a pulley (18) and the actuator force FA transmitted from the connecting means (11) to the brake unit (9) is amplified in accordance with a suspension factor of the pulley (18).
  7. Elevator car according to one of the previous claims,
    characterized in that the actuating device (10) contains a sensor (19) for determining the actual actuator force FA, and this sensor (19) is alternatively used for open-loop controlling, closed-loop controlling, and monitoring.
  8. Elevator car according to one of the previous claims,
    characterized in that the braking system (8) is attached to the elevator car (3) in addition to a safety catch (21).
  9. Elevator car according to one of the previous claims,
    characterized in that the connecting means (11) is a pull cable, a pull rod, a pull chain, or a Bowden cable, wherein the connecting means (11) can only transmit a tensile force.
  10. Elevator car according to one of the claims 5 to 9,
    characterized in that the tensioning device (15) has a spindle gear which can pull together the two connecting means (11.1, 11.2).
  11. Elevator system (1) with at least one elevator car (3) according to one of the claims 1 to 10, characterized in that the elevator car (3) is movable in an elevator shaft (2).
  12. Elevator system according to claim 11,
    characterized in that a plurality of elevator cars (3) are installed in a common elevator shaft (2), and the braking systems (8) of these elevator cars (3) are used for ensuring a sufficient safety clearance (20) between these elevator cars (3).
  13. Method for holding and braking an elevator car (3) by means of a braking system (8), said braking system comprising:
    - A brake unit (9) which can interact with a brake rail (7), when actuated correspondingly, and the brake unit (9) has an open position, when it does not brake,
    - an actuating device (10), in which an actuator force FA can be generated, and
    - a connecting means (11) which connects the actuating device (10) in a force-active manner with the brake unit (9) for transmitting the actuator force FA,
    characterized in that the actuator force FA generated in the actuating device (10) generates a contact pressure FN in the brake unit (9) which corresponds to the actuator force FA, and the contact pressure FN further causes a corresponding brake force provided by the brake unit (9), and that the brake unit (9), when it is in a position, where no actuator force FA is applied, is moved to its open position, and
    that a pulling means (12) is used as a connecting means (11), said pulling means (12) being a pull cable.
EP07845642.3A 2007-01-05 2007-12-20 Lift cabin with a braking device fitted in the area of the lift cabin to stop and brake the lift cabin, a lift system with at least one such lift cabin and a method for stopping and braking a lift cabin Not-in-force EP2125592B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07845642.3A EP2125592B1 (en) 2007-01-05 2007-12-20 Lift cabin with a braking device fitted in the area of the lift cabin to stop and brake the lift cabin, a lift system with at least one such lift cabin and a method for stopping and braking a lift cabin

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP07100189 2007-01-05
EP07845642.3A EP2125592B1 (en) 2007-01-05 2007-12-20 Lift cabin with a braking device fitted in the area of the lift cabin to stop and brake the lift cabin, a lift system with at least one such lift cabin and a method for stopping and braking a lift cabin
PCT/CH2007/000645 WO2008080243A1 (en) 2007-01-05 2007-12-20 Lift system having a lift car having a brake device which is arranged in the region of the lift car for holding and braking the lift car, and a method for holding and braking a lift car of this type

Publications (2)

Publication Number Publication Date
EP2125592A1 EP2125592A1 (en) 2009-12-02
EP2125592B1 true EP2125592B1 (en) 2018-07-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07845642.3A Not-in-force EP2125592B1 (en) 2007-01-05 2007-12-20 Lift cabin with a braking device fitted in the area of the lift cabin to stop and brake the lift cabin, a lift system with at least one such lift cabin and a method for stopping and braking a lift cabin

Country Status (7)

Country Link
US (1) US8517150B2 (en)
EP (1) EP2125592B1 (en)
CN (1) CN101622185B (en)
AR (1) AR064759A1 (en)
ES (1) ES2680893T3 (en)
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WO2008080243A1 (en) 2008-07-10
EP2125592A1 (en) 2009-12-02
US8517150B2 (en) 2013-08-27
TW200840790A (en) 2008-10-16
US20100089705A1 (en) 2010-04-15
AR064759A1 (en) 2009-04-22
ES2680893T3 (en) 2018-09-11
CN101622185A (en) 2010-01-06
CN101622185B (en) 2014-07-16

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