EP1088782B1 - Apparatus for limiting the motion of a transport device - Google Patents

Apparatus for limiting the motion of a transport device Download PDF

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Publication number
EP1088782B1
EP1088782B1 EP99115445A EP99115445A EP1088782B1 EP 1088782 B1 EP1088782 B1 EP 1088782B1 EP 99115445 A EP99115445 A EP 99115445A EP 99115445 A EP99115445 A EP 99115445A EP 1088782 B1 EP1088782 B1 EP 1088782B1
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EP
European Patent Office
Prior art keywords
braking
limiting wheel
stop
rotation
wheel
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.)
Expired - Lifetime
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EP99115445A
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German (de)
French (fr)
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EP1088782A1 (en
EP1088782B8 (en
Inventor
Günther Dr. Reuter
Günther Scholz
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.)
ThyssenKrupp Aufzugswerke GmbH
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Thyssen Aufzugswerke GmbH
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Publication date
Application filed by Thyssen Aufzugswerke GmbH filed Critical Thyssen Aufzugswerke GmbH
Priority to AT99115445T priority Critical patent/ATE202539T1/en
Priority to EP99115445A priority patent/EP1088782B8/en
Priority to ES99115445T priority patent/ES2160429T3/en
Priority to DE59900140T priority patent/DE59900140D1/en
Publication of EP1088782A1 publication Critical patent/EP1088782A1/en
Application granted granted Critical
Publication of EP1088782B1 publication Critical patent/EP1088782B1/en
Publication of EP1088782B8 publication Critical patent/EP1088782B8/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/048—Testing of overspeed governor

Definitions

  • the present invention relates to a device for Limiting the travel of a transport device, in particular an elevator, with one corresponding to the Transport speed driven limiting wheel, with at least one stop element that the governor at too high a rotation speed due to an acting Inertia stops, and with a device for remote-controlled triggering of a braking process regardless of the prevailing inertia.
  • Such devices come in particular for lifts, in both passenger and freight lifts, as a so-called speed limiter for Commitment.
  • speed limiters also with other transport devices, for example for storage and retrieval machines.
  • a separate brake is applied to the elevator car
  • Use speed limiter with a Safety gear interacts and ensures that independent from the elevator drive the car ride is stopped, provided a predetermined speed is exceeded.
  • Such a speed limiter is, for example known from EP 0 121 711 B1.
  • Stop element a two-armed lever in the form of a Rocker provided, one on one arm of the lever Roll is provided in the direction of a cam track is spring-loaded while on the other lever arm Projection is formed which in a catch hook of the Limiter wheel can intervene. If one is exceeded predeterminable speed of rotation becomes the one End of the rocker arranged due to the acting roller Inertia lifted off the cam track and here the projection arranged at the other end of the rocker pivoted towards the catch hook. The The lead then comes after a quarter turn at the latest of the limiting wheel against the corresponding one Catch hook so that the governor wheel is blocked.
  • the Blockage of the governor wheel has in the usual way moving car result in a safety gear is triggered, which stops the car.
  • the object of the present invention is a device of the type mentioned at the outset, that the governor wheel practically without any time Freewheel can be stopped.
  • the device Brake device provided on the governor wheel acts.
  • the governor wheel can be braked reliably without the stopping elements must be used. This allows the Use of the stopping elements resulting in freewheeling of the Limiter wheel can be prevented.
  • the governor wheel can by means of the braking device at any time, in particular even when the transport device is at a standstill or also at very low speeds of the transport device, be braked reliably. This gives the Possibility, e.g. B. if the service brake fails To prevent the car from drifting away from the stop.
  • the braking device can be operated remotely for example hydraulically or pneumatically.
  • the braking device is an electrically operated braking part as well as one interacting with the brake part Braking surface
  • the brake part can be with a apply electrical voltage and then cooperates the corresponding braking surface together in such a way that the governor wheel is stopped.
  • the braking device is designed as a disc brake.
  • the braking surface can be arranged on the governor wheel his. This gives the possibility of an additional one Component to provide the braking surface is not required can.
  • the brake disc with the governor wheel is releasably connectable.
  • the associated Brake part can, for example, regardless of the governor wheel be arranged on a warehouse keeper.
  • a reverse arrangement is also conceivable such that the brake part is releasable with the governor wheel is connectable and driven by this to a rotary movement while the brake disc is independent of Limiter wheel is held.
  • the braking device is electromagnetic can be ventilated or closed, the ventilation or Close opposite movement by magnet or Spring force takes place.
  • the invention Device should be designed such that when pressed the braking device has no free wheel of the governor he follows.
  • the brake part and the brake disc a first, non-rotatable Part and a second, freely rotatable Train part.
  • the immovability of the first part, for example the braking part ensures that at actuation of the braking device, the second part, for example the braking surface is braked immediately, there is therefore no freewheel.
  • An immediately effective braking device is, however not desired in all cases. So it should be when activating the braking device in a stop The car drifts up or down reliably should be prevented, however, the safety gear not with the slightest movement, like by lengthening or shortening the rope when loading or unloading, intervene and block. Therefore, it can be beneficial be when the braking part and the braking surface first, rotatable by a certain angle of rotation Form part and a second, freely rotatable part. With such a configuration, when activated the braking device the first part, for example the braking part, initially by a certain angle of rotation be twisted to make another movement only afterwards of the freely rotatable part, for example the Braking surface to prevent.
  • the certain angle of rotation about which the first part is rotatable is adjustable. This gives the opportunity depending on the conditions of use for the invention Device to provide a predefinable freewheel, by the corresponding angle of rotation of the first part is set.
  • a small one Angle of rotation may be provided, for example an angle of rotation less than 90 °, this corresponds to a freewheel less than a quarter turn. Very cheap is an angle of about 5 ° -10 °, which then z.
  • a free rebound or compression of the transport device used ropes by approx. 15-30 each mm is made possible before the safety gear is final be indented.
  • the braking device has a stop to which the first part rotates during its movement can be created.
  • the stop can advantageously be adjusted and / or resettable. This can be done, for example in addition to the stop, a separate spring element be provided that the stop with a Restoring force applied.
  • the braking part and the braking surface are preferably relative slidable to each other along an air gap arranged.
  • the size of the air gap is preferably adjustable, this enables the device according to the invention to optimally adapt the prevailing conditions. So z. B. the wear of the brake pad or the noise behavior of the brake must be taken into account.
  • the air gap is by means of adjustable at least one adjustable stop is.
  • a stop for example Screw are used.
  • a display element for example a LED, are used so that the service and maintenance personnel can easily see whether the braking device in the ventilated or in the closed Condition is.
  • the release position and / or the closed position of the Braking device is preferably by means of a sensor recognizable.
  • a sensor recognizable.
  • a mechanical Buttons are used.
  • the electrical connection of the Air gap limiting stop with the sliding Part of the braking device is electrically recognizable.
  • it can either be a movable part the braking part or the braking surface is provided his. If the movable part reaches its end position, by the stop that limits the air gap comes to the plant, so this has an electrical Contact between the stop and the sliding Part of it. This electrically conductive connection can then be used as a signal for the presence of the release position the braking device can be evaluated.
  • braking part and / or the braking surface centered around a bearing axis supporting the governor wheel are arranged around.
  • Such a symmetrical design enables an even distribution of power and a particularly cost-effective design, being ensured at the same time can that the device is assembled in a simple manner and can be dismantled.
  • Stop element 24 there is an active connection with the governor 18 familiar and therefore only fragmentary in the drawing indicated stopping element 24. This is as usual designed such that it is the governor stops if the speed of the governor wheel 18 exceeds a predetermined value.
  • Stop element depending on the on it acting inertial forces caused by the rotary motion of the limiter wheel 18 are actuated is, for example, from EP 0 121 711 B1 known and will not be explained here.
  • the limiter wheel 18 can be engaged by the stop element 24 often a certain freewheel run through, that known from EP 0 121 711 B1 Set up a maximum of a quarter turn of the Limiter wheel is 18.
  • an additional speed limiter 10 Brake device 26 for use.
  • This includes a Brake part in the form of an electromagnet 28, which a supply line 30 with an electrical supply voltage is acted upon. He is about a Slide bearing 32 slidable in the longitudinal direction of the axis 14 held on the axis 14, by means of a Spring element 34 which in the axial direction between the Electromagnet 28 and the front ball bearing 15 are arranged is, in the direction facing away from the limiting wheel 18 is spring loaded.
  • the electromagnet 28 is assigned on this facing end of the limiter wheel 18 an anchor plate 36 releasably held by means of screws 38.
  • the Armature plate 36 forms the electromagnet 28 on it facing front of a braking surface 40 to which the electromagnet 28 when loaded with a electrical supply voltage is applied. If the Electromagnet 28 is not activated, it is from the spring element 34 in the direction facing away from the anchor plate 36 axially displaced so that there is between the braking surface 40 and the back 42 facing this Electromagnet 28 forms an air gap 44.
  • the adjusting screw 50 has adjust the size of the air gap 44, nor the Function of a sensor, with the help of which detected can be whether the electromagnet 28 at a distance from Anchor plate 36 is arranged, the braking device 26 is aired.
  • the adjusting screw 50 is by means of electrical insulation 52 on the bearing block 12 held, and on the set screw 50 is a test lead 54 releasably fixed so that the adjusting screw 50 with an electrical voltage can be applied.
  • At a distance from the adjusting screw 50 is on the bracket 12 electrical sensor line 56 connected.
  • the electromagnet 28 with a supply voltage pressurized, he lies down on the anchor plate 36 and with this is a certain one Twist the angle of rotation until one of the stop screws 58, 59 on the associated leg 61 or 62 the wire spring 63 strikes and the wire spring 63 so far apart until the respective leg 61 or 62 abuts the wall of the elongated hole 65, that the leg 61 or 62 passes through.
  • the thigh 61 and 62 of the wire spring 63 thus form a resettable Stop for the electromagnet 28 so that the rotary motion of the electromagnet 28 to a small one Angular range is limited.
  • the size of the angular range is determined by the size of the slot 65 and the position of the stop screws 58, 59 defined. The bigger the slot and the bigger the distance between the stop screws and the slot, the more the larger the angle of rotation by which the electromagnet 28 can be twisted before making another turn is hindered.
  • stop screws 58, 59 can also be used e.g. B. rotated 90 ° or as adjustable stops be arranged on the electromagnet. It can also take place the outer area (wall) of the elongated hole 65 an adjustable Stop on the bearing block to be arranged.
  • the limiter wheel can be operated by means of the braking device 26 18 of the speed limiter 10 at any time reliably shutdown without this Stop element 24 must be used.
  • the braking device 26 18 of the speed limiter 10 can be operated by means of the braking device 26 18 of the speed limiter 10 at any time reliably shutdown without this Stop element 24 must be used.
  • the braking device 26 used can be arranged by applying voltage to the isolated Set screw 50 can be scanned.

Abstract

The device has a limiter wheel driven according to the transport speed, at least one element that stops the limiter wheel if the revolution rate is too high as a result of an inertial force and a device for remote triggering of a braking process independently of the inertial force. The device has a braking arrangement (26) acting on the limiter wheel (18) independently of the limiter wheel speed and the effectiveness of the stop element (24).

Description

Die vorliegende Erfindung betrifft eine Einrichtung zum Begrenzen der Fahrt einer Transportvorrichtung, insbesondere eines Aufzuges, mit einem entsprechend der Transportgeschwindigkeit antreibbaren Begrenzerrad, mit mindestens einem Stillsetzelement, das das Begrenzerrad bei zu hoher Drehgeschwindigkeit aufgrund einer einwirkenden Trägheitskraft stillsetzt, und mit einer Vorrichtung zum ferngesteuerten Auslösen eines Bremsvorgangs unabhängig von der herrschenden Trägheitskraft.The present invention relates to a device for Limiting the travel of a transport device, in particular an elevator, with one corresponding to the Transport speed driven limiting wheel, with at least one stop element that the governor at too high a rotation speed due to an acting Inertia stops, and with a device for remote-controlled triggering of a braking process regardless of the prevailing inertia.

Derartige Einrichtungen kommen insbesondere bei Aufzügen, und zwar sowohl bei Personen- als auch bei Lastenaufzügen, als sogenannte Geschwindigkeitsbegrenzer zum Einsatz. Darüber hinaus können solche Geschwindigkeitsbegrenzer auch bei anderen Transportvorrichtungen, beispielsweise bei Regalbediengeräten, eingesetzt werden. Insbesondere im Zusammenhang mit Personenaufzügen ist es bekannt, zusätzlich zu einer auf den Antrieb des Aufzug-Fahrkorbes einwirkenden Bremse einen separaten Geschwindigkeitsbegrenzer einzusetzen, der mit einer Fangvorrichtung zusammenwirkt und sicherstellt, daß unabhängig vom Antrieb des Aufzuges die Fahrt des Fahrkorbes gestoppt wird, sofern eine vorgegebene Geschwindigkeit überschritten wird. Such devices come in particular for lifts, in both passenger and freight lifts, as a so-called speed limiter for Commitment. In addition, such speed limiters also with other transport devices, for example for storage and retrieval machines. Especially in connection with passenger lifts it is known in addition to one on the drive of the A separate brake is applied to the elevator car Use speed limiter with a Safety gear interacts and ensures that independent from the elevator drive the car ride is stopped, provided a predetermined speed is exceeded.

Ein derartiger Geschwindigkeitsbegrenzer ist beispielsweise aus der EP 0 121 711 B1 bekannt. Hierbei ist als Stillsetzelement ein zweiarmiger Hebel in Form einer Wippe vorgesehen, wobei am einen Arm des Hebels eine Rolle vorgesehen ist, die in Richtung auf eine Kurvenbahn federbelastet ist, während am anderen Hebelarm ein Vorsprung ausgebildet ist, der in einen Fanghaken des Begrenzerrades eingreifen kann. Bei Überschreitung einer vorgebbaren Drehgeschwindigkeit wird die am einen Ende der Wippe angeordnete Rolle aufgrund der einwirkenden Trägheitskraft von der Kurvenbahn abgehoben und hierbei der am anderen Ende der Wippe angeordnete Vorsprung in Richtung auf den Fanghaken verschwenkt. Der Vorsprung stößt dann nach spätestens einer Vierteldrehung des Begrenzerrades gegen den korrespondierenden Fanghaken, so daß das Begrenzerrad blockiert wird. Die Blockade des Begrenzerrades hat in üblicher Weise bei sich bewegendem Fahrkorb zur Folge, daß eine Fangvorrichtung ausgelöst wird, die den Fahrkorb stoppt.Such a speed limiter is, for example known from EP 0 121 711 B1. Here is as Stop element a two-armed lever in the form of a Rocker provided, one on one arm of the lever Roll is provided in the direction of a cam track is spring-loaded while on the other lever arm Projection is formed which in a catch hook of the Limiter wheel can intervene. If one is exceeded predeterminable speed of rotation becomes the one End of the rocker arranged due to the acting roller Inertia lifted off the cam track and here the projection arranged at the other end of the rocker pivoted towards the catch hook. The The lead then comes after a quarter turn at the latest of the limiting wheel against the corresponding one Catch hook so that the governor wheel is blocked. The Blockage of the governor wheel has in the usual way moving car result in a safety gear is triggered, which stops the car.

Eine ähnliche Einrichtung ist aus der US-A-5 565 660 bekannt. Hierbei sind als durch Trägheitskraft bewegbare Stillsetzelemente zwei Nockenscheiben vorgesehen, mit deren Hilfe sichergestellt werden kann, daß das Begrenzerrad spätestens eine halbe Umdrehung nach Auslösung der Stillsetzelemente gestoppt wird.A similar device is known from US-A-5 565 660 known. Here are considered to be movable by inertia Stop elements provided two cam disks, with the help of which it can be ensured that the governor gear at the latest half a turn after triggering the stopping elements is stopped.

Derartige Einrichtungen oder Geschwindigkeitsbegrenzer haben sich in der Praxis insoweit bewährt, als mit ihrer Hilfe zuverlässig ein Abstürzen des Fahrkorbes verhindert werden kann. Um die Einrichtungen in regelmäßigen Abständen auf einfache Weise überprüfen zu können, ist es aus den genannten Druckschriften bereits bekannt, zusätzlich eine Vorrichtung zum ferngesteuerten Betätigen der Stillsetzelemente zu verwenden. Bei der aus der EP 0 121 711 B1 bekannten Einrichtung ist hierbei ein Elektromagnet vorgesehen, mit dessen Hilfe die Wippe unabhängig von einer einwirkenden Trägheitskraft verschwenkt werden kann. Bei der aus der US-A-5 565 660 bekannten Einrichtung kommt hierzu ein Elektromotor zum Einsatz. Dieser ermöglicht es, die Einrichtung z. B. zum Prüfen der Fangvorrichtung unabhängig vom Vorliegen einer überhöhten Drehgeschwindigkeit auszulösen. Dies gibt insbesondere die Möglichkeit, bei Stillstand des Fahrkorbes die Blockierung des Begrenzerrades auszulösen.Such devices or speed limiters have proven themselves in practice to the extent that their Help reliably prevents the car from falling can be. To the facilities in regular To be able to easily check distances it is already known from the publications mentioned, additionally a device for remote control Actuation of the stopping elements. In the device known from EP 0 121 711 B1 an electromagnet is provided, with the help of which Seesaw regardless of an acting inertia can be pivoted. US-A-5 565 660 known device comes to this an electric motor Commitment. This makes it possible to set up the z. B. to check the safety gear regardless of the presence trigger an excessive rotation speed. This gives in particular the possibility, when the Car to block the limiter wheel.

Mittels der aus der EP 0 121 711 B1 und der US-A-5 565 660 bekannten Einrichtungen läßt sich zwar die Blockierung des Begrenzerrades auch im Stillstand auslösen, nachteilig ist jedoch bei beiden Einrichtungen, daß nach der ferngesteuerten Auslösung der Vorrichtung zum Betätigen der Stillsetzelemente noch ein Freilauf von bis zu einer halben Umdrehung des Begrenzerrades verbleibt, ehe die Fangvorrichtung zuverlässig ausgelöst wird.By means of the from EP 0 121 711 B1 and US-A-5 565 660 known facilities can be Trigger blocking of the governor wheel even at a standstill, is disadvantageous in both institutions, that after the remote triggering of the device a free-wheel to actuate the stop elements of up to half a turn of the governor wheel remains before the safety gear triggers reliably becomes.

Als weiterer Nachteil ist aufzuführen, daß die Einrichtungen nur in einer Drehrichtung funktionieren.Another disadvantage is that the facilities only work in one direction.

Aufgabe der vorliegenden Erfindung ist es, eine Einrichtung der eingangs genannten Art derart weiterzubilden, daß das Begrenzerrad jederzeit praktisch ohne Freilauf stillgesetzt werden kann. The object of the present invention is a device of the type mentioned at the outset, that the governor wheel practically without any time Freewheel can be stopped.

Diese Aufgabe wird bei einer Einrichtung der gattungsgemäßen Art erfindungsgemäß dadurch gelöst, daß die Vorrichtung eine unabhängig von der Drehgeschwindigkeit des Begrenzerrades und unabhängig vom Wirksamwerden des Stillsetzelementes auf das Begrenzerrad einwirkende Bremsvorrichtung aufweist.This task is carried out with a device of the generic type Art solved according to the invention in that the Device one regardless of the speed of rotation of the limiter wheel and regardless of whether the Stop element acting on the governor wheel Has braking device.

Erfindungsgemäß ist für die Einrichtung eine zusätzliche Bremsvorrichtung vorgesehen, die auf das Begrenzerrad einwirkt. Das Begrenzerrad kann zuverlässig abgebremst werden, ohne daß hierbei die Stillsetzelemente zum Einsatz kommen müssen. Dadurch kann der sich beim Einsatz der Stillsetzelemente ergebende Freilauf des Begrenzerrades verhindert werden. Das Begrenzerrad kann mittels der Bremsvorrichtung jederzeit, insbesondere auch bei Stillstand der Transportvorrichtung oder auch bei sehr kleinen Geschwindigkeiten der Transportvorrichtung, zuverlässig abgebremst werden. Dies gibt die Möglichkeit, z. B. beim Versagen der Betriebsbremse ein Wegdriften des Fahrbkorbes aus der Haltestelle zu verhindern.According to the invention, there is an additional one for the device Brake device provided on the governor wheel acts. The governor wheel can be braked reliably without the stopping elements must be used. This allows the Use of the stopping elements resulting in freewheeling of the Limiter wheel can be prevented. The governor wheel can by means of the braking device at any time, in particular even when the transport device is at a standstill or also at very low speeds of the transport device, be braked reliably. This gives the Possibility, e.g. B. if the service brake fails To prevent the car from drifting away from the stop.

Günstig ist es, wenn die Vorrichtung unabhängig von der Drehrichtung des Begrenzerrades aktivierbar ist.It is advantageous if the device is independent of the Direction of rotation of the governor wheel can be activated.

Die Bremsvorrichtung kann ferngesteuert betätigt werden, beispielsweise hydraulisch oder pneumatisch.The braking device can be operated remotely for example hydraulically or pneumatically.

Besonders vorteilhaft ist eine Ausgestaltung, bei der die Bremsvorrichtung ein elektrisch betätigbares Bremsteil sowie eine mit dem Bremsteil zusammenwirkende Bremsfläche umfaßt. Das Bremsteil läßt sich mit einer elektrischen Spannung beaufschlagen und wirkt dann mit der korrespondierenden Bremsfläche derart zusammen, daß das Begrenzerrad stillgesetzt wird.An embodiment in which the braking device is an electrically operated braking part as well as one interacting with the brake part Braking surface includes. The brake part can be with a apply electrical voltage and then cooperates the corresponding braking surface together in such a way that the governor wheel is stopped.

Es kann beispielsweise vorgesehen sein, daß die Bremsvorrichtung als Scheibenbremse ausgebildet ist.It can be provided, for example, that the braking device is designed as a disc brake.

Die Bremsfläche kann hierbei am Begrenzerrad angeordnet sein. Dies gibt die Möglichkeit, daß ein zusätzliches Bauteil zur Bereitstellung der Bremsfläche entfallen kann.The braking surface can be arranged on the governor wheel his. This gives the possibility of an additional one Component to provide the braking surface is not required can.

Um unabhängig vom Material des Begrenzerrades und unabhängig von dessen Oberfächenbeschaffenheit eine zuverlässig wirkende Bremskraft bereitzustellen, ist es von Vorteil, wenn die Bremsfläche an einer separaten Bremsscheibe angeordnet ist.To be independent of the material of the governor wheel and independent a reliable from its surface quality to provide effective braking force, it is from Advantage if the braking surface on a separate brake disc is arranged.

Hierbei kann vorgesehen sein, daß die Bremsscheibe mit dem Begrenzerrad lösbar verbindbar ist. Das zugehörige Bremsteil kann unabhängig vom Begrenzerrad beispielsweise an einem Lagerhalter angeordnet sein.It can be provided that the brake disc with the governor wheel is releasably connectable. The associated Brake part can, for example, regardless of the governor wheel be arranged on a warehouse keeper.

Es ist auch eine umgekehrte Anordnung denkbar dergestalt, daß das Bremsteil mit dem Begrenzerrad lösbar verbindbar ist und von diesem zu einer Drehbewegung angetrieben wird, während die Bremsscheibe unabhängig vom Begrenzerrad gehalten ist.A reverse arrangement is also conceivable such that the brake part is releasable with the governor wheel is connectable and driven by this to a rotary movement while the brake disc is independent of Limiter wheel is held.

Bei einer besonders bevorzugten Ausführungsform ist vorgesehen, daß die Bremsvorrichtung elektromagnetisch lüftbar oder schließbar ist, wobei die dem Lüften bzw. Schließen entgegengesetzte Bewegung durch Magnet- oder Federkraft erfolgt. In a particularly preferred embodiment provided that the braking device is electromagnetic can be ventilated or closed, the ventilation or Close opposite movement by magnet or Spring force takes place.

Da bei der erfindungsgemäßen Einrichtung die Bremsvorrichtung unabhängig vom Wirksamwerden des Stillsetzelementes und unabhängig von der Drehgeschwindigkeit des Begrenzerrades aktivierbar ist, kann die erfindungsgemäße Einrichtung derart ausgebildet sein, daß beim Betätigen der Bremsvorrichtung keinerlei Freilauf des Begrenzerrades erfolgt. Hierzu ist es von Vorteil, wenn das Bremsteil und die Bremsscheibe ein erstes, unverdrehbares Teil sowie ein zweites, frei verdrehbares Teil ausbilden. Die Unverdrehbarkeit des erstes Teiles, beispielsweise des Bremsteiles, stellt sicher, daß bei einer Betätigung der Bremsvorrichtung das zweite Teil, beispielsweise die Bremsfläche, sofort abgebremst wird, ein Freilauf also nicht vorliegt.Since the braking device in the device according to the invention regardless of the stopping element taking effect and regardless of the speed of rotation of the Limiter wheel can be activated, the invention Device should be designed such that when pressed the braking device has no free wheel of the governor he follows. For this it is an advantage if the brake part and the brake disc a first, non-rotatable Part and a second, freely rotatable Train part. The immovability of the first part, for example the braking part, ensures that at actuation of the braking device, the second part, for example the braking surface is braked immediately, there is therefore no freewheel.

Eine sofort wirksame Bremsvorrichtung ist allerdings nicht in allen Fällen gewünscht. So soll zwar beim Aktivieren der Bremsvorrichtung in einer Haltestelle ein Wegdriften des Fahrkorbes nach oben oder unten zuverlässig verhindert werden, jedoch sollen die Fangvorrichtungen nicht schon bei der kleinsten Bewegung, wie durch Seillängung oder -verkürzung beim Be- oder Entladen, eingreifen und blockieren. Daher kann es vorteilhaft sein, wenn das Bremsteil und die Bremsfläche ein erstes, um einen bestimmten Drehwinkel verdrehbares Teil sowie ein zweites, frei drehbares Teil ausbilden. Bei einer derartigen Ausgestaltung kann bei einer Aktivierung der Bremsvorrichtung das erste Teil, beispielsweise das Bremsteil, zunächst um einen bestimmten Drehwinkel verdreht werden, um erst danach eine weitere Bewegung des frei drehbaren Teiles, beispielsweise der Bremsfläche, zu verhindern. An immediately effective braking device is, however not desired in all cases. So it should be when activating the braking device in a stop The car drifts up or down reliably should be prevented, however, the safety gear not with the slightest movement, like by lengthening or shortening the rope when loading or unloading, intervene and block. Therefore, it can be beneficial be when the braking part and the braking surface first, rotatable by a certain angle of rotation Form part and a second, freely rotatable part. With such a configuration, when activated the braking device the first part, for example the braking part, initially by a certain angle of rotation be twisted to make another movement only afterwards of the freely rotatable part, for example the Braking surface to prevent.

Hierbei hat es sich als besonders vorteilhaft erwiesen, wenn der bestimmte Drehwinkel, um den das erste Teil verdrehbar ist, einstellbar ist. Dies gibt die Möglichkeit, je nach Einsatzbedingungen für die erfindungsgemäße Einrichtung einen vorgebbaren Freilauf vorzusehen, indem der entsprechende Drehwinkel des ersten Teiles eingestellt wird. Hierbei kann insbesondere ein kleiner Drehwinkel vorgesehen sein, beispielsweise ein Drehwinkel von weniger als 90°, dies entspricht einem Freilauf von weniger als einer Vierteldrehung. Besonders günstig ist ein Winkel von etwa 5°-10°, wodurch dann z. B. ein freies Aus- oder Einfedern der bei der Transportvorrichtung zum Einsatz kommenden Seile um jeweils ca. 15-30 mm ermöglicht wird, ehe die Fangvorrichtungen endgültig eingerückt werden.It has proven particularly advantageous here when the certain angle of rotation about which the first part is rotatable, is adjustable. This gives the opportunity depending on the conditions of use for the invention Device to provide a predefinable freewheel, by the corresponding angle of rotation of the first part is set. In particular, a small one Angle of rotation may be provided, for example an angle of rotation less than 90 °, this corresponds to a freewheel less than a quarter turn. Very cheap is an angle of about 5 ° -10 °, which then z. B. a free rebound or compression of the transport device used ropes by approx. 15-30 each mm is made possible before the safety gear is final be indented.

Günstig ist es, wenn die Bremsvorrichtung einen Anschlag umfaßt, an den das erste Teil bei seiner Drehbewegung anlegbar ist. Der Anschlag kann vorteilhaft einstellbar und/oder rückstellbar sein. Hierzu kann beispielsweise zusätzlich zum Anschlag ein separates Federelement vorgesehen sein, das den Anschlag mit einer Rückstellkraft beaufschlagt.It is expedient if the braking device has a stop to which the first part rotates during its movement can be created. The stop can advantageously be adjusted and / or resettable. This can be done, for example in addition to the stop, a separate spring element be provided that the stop with a Restoring force applied.

Vorzugsweise sind das Bremsteil und die Bremsfläche relativ zueinander längs eines Lüftspaltes verschiebbar angeordnet.The braking part and the braking surface are preferably relative slidable to each other along an air gap arranged.

Die Größe des Luftspaltes ist bevorzugt einstellbar, dies ermöglicht es, die erfindungsgemäße Einrichtung an die jeweils herrschenden Bedingungen optimal anzupassen. So kann z. B. die Abnutzung des Bremsbelages oder das Geräuschverhalten der Bremse berücksichtigt werden.The size of the air gap is preferably adjustable, this enables the device according to the invention to optimally adapt the prevailing conditions. So z. B. the wear of the brake pad or the noise behavior of the brake must be taken into account.

Von besonderem Vorteil ist es, wenn der Lüftspalt mittels mindestens eines verstellbaren Anschlages einstellbar ist. Als Anschlag kann beispielsweise eine Schraube zum Einsatz kommen.It is particularly advantageous if the air gap is by means of adjustable at least one adjustable stop is. As a stop, for example Screw are used.

Um die Überwachung der Einrichtung zu vereinfachen, ist vorzugsweise vorgesehen, daß die Lüftstellung und/oder die Schließstellung der Bremsvorrichtung erkennbar ist. Hierzu kann ein Anzeigeelement, beispielsweise eine Leuchtdiode, zum Einsatz kommen, so daß das Service- und Wartungspersonal ohne weiteres erkennen kann, ob die Bremsvorrichtung im gelüfteten oder im geschlossenen Zustand ist.To simplify the monitoring of the facility is preferably provided that the release position and / or the closed position of the braking device is recognizable. For this purpose, a display element, for example a LED, are used so that the service and maintenance personnel can easily see whether the braking device in the ventilated or in the closed Condition is.

Die Lüftstellung und/oder die Schließstellung der Bremsvorrichtung ist vorzugsweise mittels eines Sensors erkennbar. Hierzu kann beispielsweise ein mechanischer Taster zum Einsatz kommen. Besonders bevorzugt ist vorgesehen, daß die elektrische Verbindung des den Lüftspalt begrenzenden Anschlages mit dem verschiebbaren Teil der Bremsvorrichtung elektrisch erkennbar ist. Je nach Ausgestaltung kann als verschiebbarer Teil entweder das Bremsteil oder die Bremsfläche vorgesehen sein. Erreicht der verschiebbare Teil seine Endstellung, indem er an dem den Lüftspalt begrenzenden Anschlag zur Anlage kommt, so hat dies einen elektrischen Kontakt zwischen dem Anschlag und dem verschiebbaren Teil zur Folge. Diese elektrisch leitende Verbindung kann dann als Signal für das Vorliegen der Lüftstellung der Bremsvorrichtung ausgewertet werden. The release position and / or the closed position of the Braking device is preferably by means of a sensor recognizable. For example, a mechanical Buttons are used. It is particularly preferably provided that the electrical connection of the Air gap limiting stop with the sliding Part of the braking device is electrically recognizable. Depending on the design, it can either be a movable part the braking part or the braking surface is provided his. If the movable part reaches its end position, by the stop that limits the air gap comes to the plant, so this has an electrical Contact between the stop and the sliding Part of it. This electrically conductive connection can then be used as a signal for the presence of the release position the braking device can be evaluated.

Bei einer besonders bevorzugten Ausgestaltung ist vorgesehen, daß das Bremsteil und/oder die Bremsfläche zentrisch um eine das Begrenzerrad tragende Lagerachse herum angeordnet sind. Eine derartige symmetrische Ausgestaltung ermöglicht eine gleichmäßige Kraftverteilung sowie eine besonders kostengünstig herstellbare Ausgestaltung, wobei gleichzeitig sichergestellt werden kann, daß die Vorrichtung auf einfache Weise montiert und demontiert werden kann.In a particularly preferred embodiment, that the braking part and / or the braking surface centered around a bearing axis supporting the governor wheel are arranged around. Such a symmetrical design enables an even distribution of power and a particularly cost-effective design, being ensured at the same time can that the device is assembled in a simple manner and can be dismantled.

Die nachfolgende Beschreibung einer bevorzugten Ausführungsform der Erfindung dient im Zusammenhang mit der Zeichnung der näheren Erläuterung. Es zeigen:

Figur 1 :
eine vereinfachte Seitenansicht einer Einrichtung zum Begrenzen der Fahrt eines Aufzuges und
Figur 2:
eine Schnittansicht längs der Linie A-A in Figur 1.
The following description of a preferred embodiment of the invention serves in conjunction with the drawing for a more detailed explanation. Show it:
Figure 1:
a simplified side view of a device for limiting the travel of an elevator and
Figure 2:
2 shows a sectional view along the line AA in FIG. 1.

In der Zeichnung ist eine insgesamt mit dem Bezugszeichen 10 belegte Einrichtung zum Begrenzen der Fahrt eines Aufzuges dargestellt, die nachfolgend als Geschwindigkeitsbegrenzer bezeichnet wird. Dieser umfaßt einen Lagerbock 12, an dem eine Achse 14 gehalten ist, die ihrerseits über ein vorderes und ein hinteres Kugellager 15 bzw. 16 ein Begrenzerrad 18 drehbar haltert. Letzteres weist entlang seines Umfanges eine Rille 20 auf, in der ein Drahtseil 22 liegt. Das Begrenzerrad 18 bildet in üblicher Weise eine obere oder untere Wendestelle des Drahtseiles 22, das in üblicher und deshalb in der Zeichnung nicht dargestellter Weise am Fahrkorb des Aufzuges befestigt ist und sich stets mit der Geschwindigkeit des Fahrkorbes bewegt.In the drawing there is one overall with the reference symbol 10 occupied device for limiting the journey one Elevator shown below as a speed limiter referred to as. This includes one Bearing block 12 on which an axis 14 is held, the in turn via a front and a rear ball bearing 15 or 16 rotatably supports a governor wheel 18. The latter has a groove 20 along its circumference in which a wire rope 22 lies. The governor wheel 18 forms an upper or lower turning point in the usual way of the wire rope 22, which in the usual and therefore not shown in the drawing on the car the elevator is fixed and always moving at speed of the car moves.

Mit dem Begrenzerrad 18 in Wirkverbindung steht ein an sich bekanntes und deshalb in der Zeichnung nur bruchstückhaft angedeutetes Stillsetzelement 24. Dieses ist wie üblich derart ausgebildet, daß es das Begrenzerrad stillsetzt, sofern die Drehzahl des Begrenzerrades 18 einen vorbestimmten Wert überschreitet. Ein derartiges Stillsetzelement, das in Abhängigkeit von den auf ihn einwirkenden Trägheitskräften, die durch die Drehbewegung des Begrenzerrades 18 hervorgerufen werden, betätigt wird, ist beispielsweise aus der EP 0 121 711 B1 bekannt und soll hier nicht näher erläutert werden. Das Begrenzerrad 18 kann nach dem Eingreifen des Stillsetzelementes 24 oft noch einen gewissen Freilauf durchlaufen, der bei der aus der EP 0 121 711 B1 bekannten Einrichtung maximal eine Viertelumdrehung des Begrenzerrades 18 beträgt.There is an active connection with the governor 18 familiar and therefore only fragmentary in the drawing indicated stopping element 24. This is as usual designed such that it is the governor stops if the speed of the governor wheel 18 exceeds a predetermined value. Such a thing Stop element depending on the on it acting inertial forces caused by the rotary motion of the limiter wheel 18 are actuated is, for example, from EP 0 121 711 B1 known and will not be explained here. The limiter wheel 18 can be engaged by the stop element 24 often a certain freewheel run through, that known from EP 0 121 711 B1 Set up a maximum of a quarter turn of the Limiter wheel is 18.

Um nach der Erfindung das Begrenzerrad 18 jederzeit und unabhängig von der vorliegenden Geschwindigkeit und unabhängig von der Drehrichtung abbremsen zu können, kommt beim Geschwindigkeitsbegrenzer 10 eine zusätzliche Bremsvorrichtung 26 zum Einsatz. Diese umfaßt ein Bremsteil in Form eines Elektromagneten 28, der über eine Versorgungsleitung 30 mit einer elektrischen Versorgungsspannung beaufschlagbar ist. Er ist über ein Gleitlager 32 in Längsrichtung der Achse 14 verschiebbar auf der Achse 14 gehalten, wobei er mittels eines Federelementes 34, das in axialer Richtung zwischen dem Elektromagneten 28 und dem vorderen Kugellager 15 angeordnet ist, in die dem Begrenzerrad 18 abgewandte Richtung federbelastet ist.To the limiter wheel 18 at any time and according to the invention regardless of the present speed and independent to be able to brake from the direction of rotation, there is an additional speed limiter 10 Brake device 26 for use. This includes a Brake part in the form of an electromagnet 28, which a supply line 30 with an electrical supply voltage is acted upon. He is about a Slide bearing 32 slidable in the longitudinal direction of the axis 14 held on the axis 14, by means of a Spring element 34 which in the axial direction between the Electromagnet 28 and the front ball bearing 15 are arranged is, in the direction facing away from the limiting wheel 18 is spring loaded.

Dem Elektromagneten 28 zugeordnet ist auf der diesem zugewandten Stirnseite des Begrenzerrades 18 eine Ankerplatte 36 mittels Schrauben 38 lösbar gehalten. Die Ankerplatte 36 bildet auf ihrer dem Elektromagneten 28 zugewandten Frontseite eine Bremsfläche 40 aus, an die sich der Elektromagnet 28 bei Beaufschlagung mit einer elektrischen Versorgungsspannung anlegt. Sofern der Elektromagnet 28 nicht aktiviert ist, wird er vom Federelement 34 in die der Ankerplatte 36 abgewandte Richtung axial verschoben, so daß sich zwischen der Bremsfläche 40 und der dieser zugewandten Rückseite 42 des Elektromagneten 28 ein Lüftspalt 44 ausbildet. Zur Einstellung der Größe des Lüftspaltes 44 sind auf der der Ankerplatte 36 abgewandten Frontseite 46 des Elektromagneten 28 drei Stellschrauben 48, 49, 50 vorgesehen, mit deren Hilfe der axialer Abstand des Elektromagneten 28 vom Lagerbock 12 eingestellt werden kann und somit auch der Abstand, den der Elektromagnet 28 zur Ankerplatte 36 einnimmt. Damit kann z. B. die Geräuschbildung beim Aufeinandertreffen der beiden Bremsteile beeinflußt werden und es kann auch die Abnutzung des Reibbelages berücksichtigt werden.The electromagnet 28 is assigned on this facing end of the limiter wheel 18 an anchor plate 36 releasably held by means of screws 38. The Armature plate 36 forms the electromagnet 28 on it facing front of a braking surface 40 to which the electromagnet 28 when loaded with a electrical supply voltage is applied. If the Electromagnet 28 is not activated, it is from the spring element 34 in the direction facing away from the anchor plate 36 axially displaced so that there is between the braking surface 40 and the back 42 facing this Electromagnet 28 forms an air gap 44. For setting the size of the air gap 44 are on the Armature plate 36 facing away from the front 46 of the electromagnet 28 three adjusting screws 48, 49, 50 are provided, with the help of the axial distance of the electromagnet 28 can be adjusted from the bracket 12 and thus also the distance that the electromagnet 28 to the armature plate 36 occupies. So z. B. the noise influenced when the two brake parts meet and it can also wear the Friction lining are taken into account.

Die Stellschraube 50 hat zusätzlich zu ihrer Funktion, die Größe des Lüftspaltes 44 einzustellen, noch die Funktion eines Sensors, mit dessen Hilfe festgestellt werden kann, ob der Elektromagnet 28 mit Abstand zur Ankerplatte 36 angeordnet ist, die Bremsvorrichtung 26 also gelüftet ist. Hierzu ist die Stellschraube 50 mittels einer elektrischen Isolierung 52 am Lagerbock 12 gehalten, und an der Stellschraube 50 ist eine Prüfleitung 54 lösbar fixiert, so daß die Stellschraube 50 mit einer elektrischen Spannung beaufschlagt werden kann. Im Abstand zur Stellschraube 50 ist am Lagerbock 12 eine elektrische Sensorleitung 56 angeschlossen. Da die Stellschraube 50 bei gelüfteter Bremsvorrichtung 26 als Anschlag für den Elektromagneten 28 dient, wird im gelüfteten Zustand von der Stellschraube 50 über den Elektromagneten 28 und über die Stellschrauben 48 und 49 und/oder über das Gleitlager 32 und die Achse 14 eine elektrische Verbindung zum Lagerbock 12 bereitgestellt, so daß die Prüfleitung 54 mit der Sensorleitung 56 in elektrischer Verbindung steht. Ist jedoch die Bremsvorrichtung 26 aktiviert, so hebt der Elektromagnet 28 mit seiner Frontseite 46 von der Stellschraube 50 ab, so daß die Verbindung zwischen der Prüfleitung 54 und der Sensorleitung 56 unterbrochen ist. Die Stellschraube 50 bildet somit einen Sensor, mit dem der Betriebszustand der Bremsvorrichtung 26 abgefühlt werden kann.In addition to its function, the adjusting screw 50 has adjust the size of the air gap 44, nor the Function of a sensor, with the help of which detected can be whether the electromagnet 28 at a distance from Anchor plate 36 is arranged, the braking device 26 is aired. For this purpose, the adjusting screw 50 is by means of electrical insulation 52 on the bearing block 12 held, and on the set screw 50 is a test lead 54 releasably fixed so that the adjusting screw 50 with an electrical voltage can be applied. At a distance from the adjusting screw 50 is on the bracket 12 electrical sensor line 56 connected. Since the Set screw 50 when the brake device 26 is released Stop for the electromagnet 28 is used in the vented State of the adjusting screw 50 over the Electromagnets 28 and 48 and 49 and / or via the plain bearing 32 and the axis 14 a electrical connection to the bearing block 12 provided, so that the test line 54 with the sensor line 56 is in electrical connection. However, it is Brake device 26 activated, the electromagnet lifts 28 with its front side 46 from the adjusting screw 50 off, so that the connection between the test lead 54 and the sensor line 56 is interrupted. The Set screw 50 thus forms a sensor with which the Operating state of the braking device 26 can be sensed can.

Um sicherzustellen, daß sich der Elektromagnet 28 im geschlossenen Zustand der Bremsvorrichtung 26 nicht zusammen mit der Ankerplatte 36 und dem Begrenzerrad 18 frei drehen kann, sind auf der Frontseite 46 im Abstand zueinander zwei Anschlagschrauben 58, 59 in den Elektromagneten 28 eingeschraubt. Bei einer Drehung des Elektromagneten 28 zusammen mit der Ankerplatte 36 stößt je nach Drehrichtung eine der beiden Anschlagschrauben 58, 59 gegen einen Schenkel 61 bzw. 62 einer U-förmigen Drahtfeder 63, die am Lagerbock 12 fixiert ist. Die Schenkel 61, 62 durchgreifen jeweils ein Langloch 65, das in das freie Ende 67 des Lagerbockes 12 eingebracht ist, wobei das freie Ende 67 des ansonsten vertikal ausgerichteten Lagerbockes 12 horizontal abgekröpft ist. Wird der Elektromagnet 28 mit einer Versorgungsspannung beaufschlagt, so legt er sich an die Ankerplatte 36 an und wird mit dieser soweit um einen bestimmten Drehwinkel verdreht, bis eine der Anschlagschrauben 58, 59 am zugeordneten Schenkel 61 bzw. 62 der Drahtfeder 63 anschlägt und hierbei die Drahtfeder 63 soweit auseinanderbiegt, bis der jeweilige Schenkel 61 bzw. 62 an der Wandung des Langloches 65 anliegt, das der Schenkel 61 bzw. 62 durchgreift. Die Schenkel 61 und 62 der Drahtfeder 63 bilden somit einen rückstellbaren Anschlag für den Elektromagneten 28, so daß die Drehbewegung des Elektromagneten 28 auf einen kleinen Winkelbereich begrenzt wird. Die Größe des Winkelbereiches wird hierbei durch die Größe des Langloches 65 und die Lage der Anschlagschrauben 58, 59 definiert. Je größer das Langloch und je größer der Abstand zwischen den Anschlagschrauben und dem Langloch, desto größer ist der Drehwinkel, um den der Elektromagnet 28 verdreht werden kann, bevor er an einer weiteren Drehung gehindert ist.To ensure that the electromagnet 28 in closed state of the braking device 26 not together with the anchor plate 36 and the governor wheel 18 can rotate freely, are on the front 46 at a distance to each other two stop screws 58, 59 in the electromagnet 28 screwed in. When the Electromagnet 28 together with the armature plate 36 pushes one of the two stop screws depending on the direction of rotation 58, 59 against a leg 61 or 62 one U-shaped wire spring 63, which is fixed to the bearing block 12 is. The legs 61, 62 each pass through an elongated hole 65, in the free end 67 of the bracket 12th is introduced, the free end 67 of the otherwise vertically aligned bracket 12 bent horizontally is. If the electromagnet 28 with a supply voltage pressurized, he lies down on the anchor plate 36 and with this is a certain one Twist the angle of rotation until one of the stop screws 58, 59 on the associated leg 61 or 62 the wire spring 63 strikes and the wire spring 63 so far apart until the respective leg 61 or 62 abuts the wall of the elongated hole 65, that the leg 61 or 62 passes through. The thigh 61 and 62 of the wire spring 63 thus form a resettable Stop for the electromagnet 28 so that the rotary motion of the electromagnet 28 to a small one Angular range is limited. The size of the angular range is determined by the size of the slot 65 and the position of the stop screws 58, 59 defined. The bigger the slot and the bigger the distance between the stop screws and the slot, the more the larger the angle of rotation by which the electromagnet 28 can be twisted before making another turn is hindered.

Alternativ können die Anschlagschrauben 58, 59 auch um z. B. 90° verdreht oder auch als verstellbare Anschläge am Elektromagnet angeordnet sein. Außerdem kann statt des Außenbereichs (Wandung) des Langloches 65 ein verstellbarer Anschlag am Lagerbock angeordnet sein.Alternatively, the stop screws 58, 59 can also be used e.g. B. rotated 90 ° or as adjustable stops be arranged on the electromagnet. It can also take place the outer area (wall) of the elongated hole 65 an adjustable Stop on the bearing block to be arranged.

Mittels der Bremsvorrichtung 26 läßt sich das Begrenzerrad 18 des Geschwindigkeitsbegrenzers 10 jederzeit zuverlässig stillsetzen, ohne daß hierzu das Stillsetzelement 24 zum Einsatz kommen muß. Hierbei kann ein gewünschter, sehr geringer Freilauf für das Begrenzerrad 18 eingestellt werden, und der Betriebszustand der zum Einsatz kommenden Bremsvorrichtung 26 kann durch Spannungsbeaufschlagung der isoliert angeordneten Stellschraube 50 abgetastet werden.The limiter wheel can be operated by means of the braking device 26 18 of the speed limiter 10 at any time reliably shutdown without this Stop element 24 must be used. Here can be a desired, very low freewheel for the Limiter wheel 18 can be set, and the operating state the braking device 26 used can be arranged by applying voltage to the isolated Set screw 50 can be scanned.

Claims (21)

  1. Apparatus (10) for limiting the motion of a transporting device, in particular a lift, having a limiting wheel driveable according to the transporting speed, having at least one stopping element (24) which stops the limiting wheel (18), on account of an acting inertial force, when the speed of rotation is too high, and having a device for the remote-controlled triggering of a braking procedure irrespective of the prevailing inertial force, characterised in that the device has a braking device (26) which acts upon the limiting wheel (18) irrespective of the speed of rotation of the limiting wheel (18) and irrespective of the operation of the stopping element (24).
  2. Apparatus according to Claim 1, characterised in that the device is activatable irrespective of the direction of rotation of the limiting wheel (18).
  3. Apparatus according to Claim 1 or 2, characterised in that the braking device (26) comprises an electrically actuatable braking part (28) as well as a braking surface (40) which co-operates with the braking part (28).
  4. Apparatus according to Claim 1, 2 or 3, characterised in that the braking device (26) is in the form of a disk brake.
  5. Apparatus according to Claim 3 or 4, characterised in that the braking surface (40) is arranged directly on the limiting wheel (18).
  6. Apparatus according to Claim 3 or 4, characterised in that the braking surface (40) is arranged on a separate brake disc (36).
  7. Apparatus according to Claim 6, characterised in that the brake disc (36) is detachably connectable to the limiting wheel (18).
  8. Apparatus according to Claim 6, characterised in that the braking part (28) is detachably connectable to the limiting wheel (18).
  9. Apparatus according to any one of the preceding Claims, characterised in that the braking device (26) is able to be released or applied electromagnetically.
  10. Apparatus according to any one of Claims 3 to 9, characterised in that the braking part (28) and the braking surface (40) form a first, non-rotatable part and a second, freely rotatable part.
  11. Apparatus according to any one of Claims 3 to 9, characterised in that the braking part (28) and the braking surface (40) form a first part rotatable through a fixed angle of rotation and a second, freely rotatable part.
  12. Apparatus according to Claim 11, characterised in that the fixed angle of rotation is adjustable.
  13. Apparatus according to Claim 11 or 12, characterised in that the braking device (26) comprises a restorable stop (61, 62) against which the first part can be placed when rotated.
  14. Apparatus according to Claim 13, characterised in that the restorable stop is in the form of a wire spring (63).
  15. Apparatus according to any one of Claims 3 to 14, characterised in that the braking part (28) and the braking surface (40) are arranged to be movable relative to one another along an air gap (44).
  16. Apparatus according to Claim 15, characterised in that the size of the air gap (44) is adjustable.
  17. Apparatus according to Claim 16, characterised in that the air gap (44) is adjustable by means of at least one movable stop (48, 49, 50).
  18. Apparatus according to any one of the preceding Claims, characterised in that the released position and/or the applied position of the braking device (26) is/are detectable.
  19. Apparatus according to any one of the preceding Claims, characterised in that the released position and/or the applied position of the braking device (26) is/are detectable by means of a sensor (50).
  20. Apparatus according to Claim 17, characterised in than an electric connection of the stop (50) bounding the air gap (44) to the movable part (28) of the braking device (26) is detectable electrically.
  21. Apparatus according to any one of Claims 3 to 20, characterised in that the braking part (28) and/or the braking surface (40) is/are arranged concentrically around a bearing spindle (14) carrying the limiting wheel (18).
EP99115445A 1999-08-05 1999-08-05 Apparatus for limiting the motion of a transport device Expired - Lifetime EP1088782B8 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT99115445T ATE202539T1 (en) 1999-08-05 1999-08-05 DEVICE FOR LIMITING THE TRAVEL OF A TRANSPORT DEVICE
EP99115445A EP1088782B8 (en) 1999-08-05 1999-08-05 Apparatus for limiting the motion of a transport device
ES99115445T ES2160429T3 (en) 1999-08-05 1999-08-05 MECHANISM TO LIMIT THE DISPLACEMENT OF A TRANSPORTATION DEVICE.
DE59900140T DE59900140D1 (en) 1999-08-05 1999-08-05 Device for limiting the travel of a transport device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99115445A EP1088782B8 (en) 1999-08-05 1999-08-05 Apparatus for limiting the motion of a transport device

Publications (3)

Publication Number Publication Date
EP1088782A1 EP1088782A1 (en) 2001-04-04
EP1088782B1 true EP1088782B1 (en) 2001-06-27
EP1088782B8 EP1088782B8 (en) 2001-11-14

Family

ID=8238729

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99115445A Expired - Lifetime EP1088782B8 (en) 1999-08-05 1999-08-05 Apparatus for limiting the motion of a transport device

Country Status (4)

Country Link
EP (1) EP1088782B8 (en)
AT (1) ATE202539T1 (en)
DE (1) DE59900140D1 (en)
ES (1) ES2160429T3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006056079A1 (en) * 2006-11-28 2008-05-29 Robert Bosch Gmbh Electric motor i.e. lift motor, for use in e.g. conveyor, has brake device that is mechanically working brake device, which is not manually detachable in case of failure, and another brake device that is electrical brake device
EP2189410A1 (en) 2004-06-02 2010-05-26 Inventio Ag Elevator supervision
DE102011114679A1 (en) * 2011-10-04 2013-04-04 RST Elektronik GmbH Lift device, has activation unit for activating safety device when movement of lift unit is determined when lift door is opened and designed as autonomous redundant system independent of control device and moving assembly

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7353916B2 (en) 2004-06-02 2008-04-08 Inventio Ag Elevator supervision
WO2009130366A1 (en) * 2008-04-23 2009-10-29 Kone Corporation Overspeed governor of an elevator, and elevator
DE102009037634A1 (en) * 2009-08-14 2011-02-17 Lm Liftmaterial Gmbh Elevator and method for securing an elevator

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EP0121711B1 (en) * 1983-03-09 1988-04-13 Bongers & Deimann Velocity limiting device for a lift
US4977982A (en) * 1989-12-26 1990-12-18 Otis Elevator Company Elevator sheave brake safety
FI95021C (en) * 1993-06-08 1995-12-11 Kone Oy Method and apparatus for triggering an elevator gripping device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2189410A1 (en) 2004-06-02 2010-05-26 Inventio Ag Elevator supervision
DE102006056079A1 (en) * 2006-11-28 2008-05-29 Robert Bosch Gmbh Electric motor i.e. lift motor, for use in e.g. conveyor, has brake device that is mechanically working brake device, which is not manually detachable in case of failure, and another brake device that is electrical brake device
DE102011114679A1 (en) * 2011-10-04 2013-04-04 RST Elektronik GmbH Lift device, has activation unit for activating safety device when movement of lift unit is determined when lift door is opened and designed as autonomous redundant system independent of control device and moving assembly

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DE59900140D1 (en) 2001-08-02
ATE202539T1 (en) 2001-07-15
EP1088782A1 (en) 2001-04-04
EP1088782B8 (en) 2001-11-14
ES2160429T3 (en) 2001-11-01

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