EP2301881B1 - Lift assembly with locking device - Google Patents

Lift assembly with locking device Download PDF

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Publication number
EP2301881B1
EP2301881B1 EP20100010465 EP10010465A EP2301881B1 EP 2301881 B1 EP2301881 B1 EP 2301881B1 EP 20100010465 EP20100010465 EP 20100010465 EP 10010465 A EP10010465 A EP 10010465A EP 2301881 B1 EP2301881 B1 EP 2301881B1
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EP
European Patent Office
Prior art keywords
swivel arm
locking
assembly according
lift assembly
guide rail
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
EP20100010465
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German (de)
French (fr)
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EP2301881A1 (en
Inventor
Klaus Schmidt
Wilfried Michael Meyer
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.)
Aufzugswerke M Schmitt & Sohn & Co GmbH
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Aufzugswerke M Schmitt & Sohn & Co GmbH
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Publication of EP2301881A1 publication Critical patent/EP2301881A1/en
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Publication of EP2301881B1 publication Critical patent/EP2301881B1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B17/00Hoistway equipment
    • B66B17/34Safe lift clips; Keps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0087Devices facilitating maintenance, repair or inspection tasks

Definitions

  • the invention relates to an elevator installation with an elevator car, a stationarily arranged guide rail device with at least one guide rail and a drive motor for moving the elevator car up and down along the at least one guide rail, wherein the elevator car has a car roof and an upper cross member on which a locking device is arranged, which is engageable in a locking position with the at least one guideway in locking engagement.
  • Elevator cabs can be moved to maintain the elevator in an upper end position, with a fitter is staying on the cabin roof during maintenance.
  • locking devices are known, which are turned on by the fitter during maintenance to fix the elevator car. It Such locking devices are known which come in the locking position at the arranged in the shaft stationary guide rails of the elevator car via a locking bolt in engagement, see for example EP 1 437 320 A1 or JP 2007246212 ,
  • Such locking devices may jam in the locking position, when during maintenance, the detected by the brake or the drive elevator car moves slightly up or down. In this case, the elevator car will exert an upward or downward force on the locking device, which leads to jamming of the locking device. Because of the high forces that occur, the locking device can no longer be released by hand.
  • Object of the present invention is to provide an elevator system with locking device, which is easily and safely solvable from the locked position.
  • this object is achieved with the subject matter of claim 1. It is an elevator installation with an elevator car, a stationarily arranged guide rail device with at least one guide rail and a drive motor in order to move the elevator car up and down along the at least one guide rail. It is provided that the elevator car has a car roof and an upper cross member on which a locking device is arranged, which - can be brought into locking engagement with the at least one guide track in locking engagement.
  • the locking device has at least one pivot arm, which with its one end to the upper cross member of the elevator car is hinged and having with its free other end a locking device; that the at least one swivel arm is arranged and mounted on the cross member so that it is pivotable in a rest position substantially parallel to the cross member and in an upwardly deflected locking position; in that the locking device arranged on the end of the at least one pivoting arm can be brought into locking engagement with the at least one guide rail in the locking position of the pivoting arm; and the at least one swivel arm has a length adjustment device.
  • the length-adjustable swivel arm device it is possible in a particularly simple manner to bring the locking device in and out of locking engagement, since an adjustment to the height position of the elevator car and position of the locking point on the guide rail is possible.
  • Particular advantages are obtained with locking devices in which a locking bolt is provided, which cooperates with the guide rail and / or with the pivot arm side locking device by engaging in a latch receiving the schwenkarm Desken locking device and / or in a latch receptacle in the guide rail.
  • the elevator car may possibly be acted upon by the weight of the cabin and / or by the counterweight down or up and cause by a corresponding possibly minimal up and / or down movement jamming of the locking bolt.
  • the length adjustment device is self-locking. This offers the advantage that a separate locking device for fixing the set length of the pivot arm is unnecessary and further operator error can be avoided.
  • the length adjustment is a helical gear.
  • the helical gear has the advantage that the length adjustment of the pivot arm is a relatively small adjustment force spent.
  • a left pivot arm is provided for locking on a left guide rail and a right pivot arm for locking on a right guide rail, wherein the elevator car is arranged between the left and the right guide rail. Due to the symmetrical design of the locking device, on the one hand, a good, in particular uniform load distribution is achieved and, on the other hand, the redundant design with two pivoting arms offers a high degree of safety.
  • the helical gear is designed as a turnbuckle with a legal and a left-hand thread and two threaded rods that engage in the turnbuckle.
  • the helical gear is formed from a double nut with a right-hand and a left-hand thread and two threaded rods which engage in the double nut.
  • the helical gear is formed from a double screw with a right-hand and a left-hand thread and two nuts which engage over the twin-screw.
  • the helical gear is formed from a sleeve-shaped nut and an engaging in the sleeve-shaped nut threaded rod, wherein the nut is rigidly connected to the pivot arm and the threaded rod is rotatably connected to the pivot arm or vice versa.
  • auxiliary elements may be provided to reduce the operating force by utilizing the lever law, for example, jaw surfaces for attaching a wrench or openings for inserting a lever or the like.
  • the length adjustment device is integrated in the swivel arm.
  • the swivel arm can thus be formed, for example, essentially from two threaded rods, which are interconnected by a double nut. Such Double nut is also called turnbuckle.
  • the swivel arm interacts directly or indirectly with a switching element arranged on the car roof, wherein the switching element is actuated as soon as the swivel arm is pivoted out of its rest position.
  • the switching element may preferably be provided in order to avoid an erroneous start-up of the elevator car.
  • an actuating element can be arranged on the pivot arm, which cooperates with the switching element.
  • the switching element is designed as a switch which interrupts the circuit of the elevator motor directly or indirectly.
  • the switch can be connected to an input of a control device, the u. a. controls the operation of the elevator motor.
  • the switching element is designed as a non-contact sensor.
  • the sensor may be, for example, a magnetic sensor, such as a Hall sensor, or an optical sensor.
  • the pivot arm locking device has a hinged locking bolt receptacle and the at least one guide rail has a lock plate-like locking plate and a locking bolt is provided which in locking engagement with the locking bolt receptacle of the locking device and the locking plate-like locking plate the at least one guide rail cooperates. It is therefore intended to form the locking device according to the principle of positive engagement.
  • Fig. 1 and 2 show a locking device 1 an elevator installation, which is arranged on the cabin roof of an elevator car 2.
  • the elevator car 2 is guided on a left T-shaped guide rail 211 and a right T-shaped guide rail 21 r.
  • the elevator car 2 is driven by a drive motor, not shown, for vertical movement along the guide rails.
  • a cable device not shown, may be provided, which is driven via a driven by the drive motor traction sheave.
  • the cable device it is also possible to provide a drive device which acts on the floor of the elevator car and is hydraulically driven.
  • the drive device can thus be designed differently as is known in the elevator systems.
  • the elevator car is guided on one or more stationary arranged guide rails 21l, 21r and that the locking device 1 is arranged on the car roof and the locking device 1 in the locking position with one of the two Guide rails 21l, 21r cooperates, so that the elevator car 2 is held locked to the guide rails.
  • the locking device 1 has two pivot arms 11, which are pivotally connected via pivot bearings 221 with a arranged on the car roof cross member 22.
  • the pivot arms 11 are in the rest position on the cross member 22, wherein the longitudinal axes of the pivot arms 11 are parallel to the longitudinal axis of the cross member 22.
  • the right pivot arm is in the rest position.
  • the two pivot arms 11 are swiveled in the direction of the left or right guide rail 21l, 21r and fixed on the guide rail by means of a locking bolt 113r.
  • the pivot arms 11 have at their end facing away from the pivot bearings 221 an articulated locking bolt receptacle 113 on.
  • the locking bolt receptacle 113 is formed with a U-shaped end portion which, like the guide rail has a through hole which is intended to receive the locking bolt 113r and which is penetrated in the fixed state of the pivot arm 11 of the locking bolt 113r.
  • the locking bolt 113r may, for example, be a fastening screw which engages in an internal thread of the locking bolt receptacle 113.
  • the locking bolt receptacle 113 and the locking bolt 113r form a positive connection device which engages in the through hole of the guide rail.
  • the pivot arms 11 are formed adjustable in length by a trained as a helical tensioning device.
  • the helical gear is at the in FIG. 2 illustrated embodiment designed as a turnbuckle 112. It has as connections an internal left-hand thread and an internal right-hand thread for two threaded rods 111, which have a corresponding left-hand or right-hand thread.
  • the turnbuckle 112 is formed as a yoke-shaped element with two terminals each formed as an internal thread.
  • the length of the swing arm 11 is adjusted by turning the turnbuckle 112 so that the through hole of the latch pin receptacle 113 is aligned with the through hole of the respective guide rail 21l and 21r, respectively, so that the latch bolt 113r is insertable.
  • the elevator car 2 will exert an upward or downward force on the latch bolt 113r, which jams the latch bolt 113r in the latch bolt receptacle 113.
  • this force is directed upward because a counterweight arranged on the hoisting cable device has a higher mass than the empty elevator car 2 and the fitter standing on the elevator car together.
  • the locking bolt 113r is not solvable by hand due to the high forces occurring.
  • the locking bolt 113r can be relieved by changing the length of the pivot arm 11, wherein the change in length can be brought about by turning the double nut 112.
  • the pivot arm 11 further has a strip-shaped actuating element 114, which cooperates in the rest position of the pivot arm with a arranged on the cross member 22 safety switch 12.
  • the Safety switch 12 may be, for example, an electrical switch which is in the circuit of the elevator motor (in Fig. 1 and 2 not shown) is arranged and which interrupts the circuit when the associated pivot arm 11 is pivoted from the rest position. But it can also be provided that the safety switch 12 cooperates with an elevator control and triggers a switching pulse when the associated pivot arm 11 is pivoted from the rest position. It can also be provided that the safety switch is a sensor, for example a magnetic or an optical sensor.
  • the two safety switches 12 are connected in series, so that the circuit of the elevator motor is already interrupted when one of the safety switch 12 is actuated.

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  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Description

Die Erfindung betrifft eine Aufzugsanlage mit einer Aufzugskabine, einer ortsfest angeordneten Führungsschieneneinrichtung mit mindestens einer Führungsschiene und einem Antriebsmotor, um die Aufzugskabine entlang der mindestens einen Führungsschiene auf und ab zu bewegen, wobei die Aufzugskabine ein Kabinendach und einen oberen Querträger aufweist, auf dem eine Verriegelungseinrichtung angeordnet ist, die in einer Verriegelungsstellung mit der mindestens einen Führungsbahn in Verriegelungseingriff bringbar ist.The invention relates to an elevator installation with an elevator car, a stationarily arranged guide rail device with at least one guide rail and a drive motor for moving the elevator car up and down along the at least one guide rail, wherein the elevator car has a car roof and an upper cross member on which a locking device is arranged, which is engageable in a locking position with the at least one guideway in locking engagement.

Aufzugskabinen können zur Wartung des Aufzugs in eine obere Endstellung verfahren werden, wobei sich ein Monteur bei den Wartungsarbeiten auf dem Kabinendach aufhält. Zur Vermeidung von Unfällen durch unbeabsichtigt bewegte Kabinen während der Wartungsarbeiten sind Verriegelungseinrichtungen bekannt, die vom Monteur bei den Wartungsarbeiten eingeschaltet werden, um die Aufzugskabine zu fixieren. Es sind solche Verriegelungseinrichtungen bekannt, die in der Verriegelungsstellung an den im Schacht angeordneten ortsfesten Führungsschienen der Aufzugskabine über einen Riegelbolzen in Eingriff kommen, siehe zum Beispiel EP 1 437 320 A1 oder JP 2007246212 .Elevator cabs can be moved to maintain the elevator in an upper end position, with a fitter is staying on the cabin roof during maintenance. In order to avoid accidents caused by unintentionally moving cabins during maintenance locking devices are known, which are turned on by the fitter during maintenance to fix the elevator car. It Such locking devices are known which come in the locking position at the arranged in the shaft stationary guide rails of the elevator car via a locking bolt in engagement, see for example EP 1 437 320 A1 or JP 2007246212 ,

Derartige Verriegelungseinrichtungen können sich in der Verriegelungsstellung verklemmen, wenn während der Wartungsarbeiten die durch die Bremse oder den Antrieb festgestellte Aufzugskabine sich etwas nach oben oder nach unten bewegt. Dabei wird die Aufzugskabine eine nach oben oder nach unten gerichtete Kraft auf die Verriegelungseinrichtung ausüben, die zum Verklemmen der Verriegelungseinrichtung führt. Wegen der auftretenden hohen Kräfte ist die Verriegelungseinrichtung nun nicht mehr von Hand lösbar.Such locking devices may jam in the locking position, when during maintenance, the detected by the brake or the drive elevator car moves slightly up or down. In this case, the elevator car will exert an upward or downward force on the locking device, which leads to jamming of the locking device. Because of the high forces that occur, the locking device can no longer be released by hand.

Aufgabe der vorliegenden Erfindung ist es, eine Aufzugsanlage mit Verriegelungseinrichtung anzugeben, die aus der Verriegelungsstellung leicht und sicher lösbar ist.Object of the present invention is to provide an elevator system with locking device, which is easily and safely solvable from the locked position.

Erfindungsgemäß wird diese Aufgabe mit dem Gegenstand des Anspruchs 1 gelöst. Es handelt sich dabei um eine Aufzugsanlage mit einer Aufzugskabine, einer ortsfest angeordneten Führungsschieneneinrichtung mit mindestens einer Führungsschiene und einem Antriebsmotor, um die Aufzugskabine entlang der mindestens einen Führungsschiene auf und ab zu bewegen. Hierbei ist vorgesehen, dass die Aufzugskabine ein Kabinendach und einen oberen Querträger aufweist, auf dem eine Verriegelungseinrichtung angeordnet ist, die - in einer Verriegelungsstellung mit der mindestens einen Führungsbahn in Verriegelungseingriff bringbar ist. Es ist dabei vorgesehen, dass die Verriegelungseinrichtung mindestens einen Schwenkarm aufweist, der mit seinem einen Ende an dem oberen Querträger der Aufzugskabine angelenkt ist und mit seinem freien anderen Ende eine Verriegelungsvorrichtung aufweist;
dass der mindestens eine Schwenkarm auf dem Querträger so angeordnet und gelagert ist, dass er in eine zu dem Querträger im Wesentlichen parallele Ruhestellung und in eine nach oben ausgelenkte Verriegelungsstellung schwenkbar ist;
dass die auf dem Ende des mindestens einen Schwenkarms angeordnete Verriegelungsvorrichtung in der Verriegelungsstellung des Schwenkarms in Verriegelungseingriff mit der mindestens einen Führungsschiene bringbar ist; und
dass der mindestens eine Schwenkarm eine Längenverstelleinrichtung aufweist.
According to the invention, this object is achieved with the subject matter of claim 1. It is an elevator installation with an elevator car, a stationarily arranged guide rail device with at least one guide rail and a drive motor in order to move the elevator car up and down along the at least one guide rail. It is provided that the elevator car has a car roof and an upper cross member on which a locking device is arranged, which - can be brought into locking engagement with the at least one guide track in locking engagement. It is provided that the locking device has at least one pivot arm, which with its one end to the upper cross member of the elevator car is hinged and having with its free other end a locking device;
that the at least one swivel arm is arranged and mounted on the cross member so that it is pivotable in a rest position substantially parallel to the cross member and in an upwardly deflected locking position;
in that the locking device arranged on the end of the at least one pivoting arm can be brought into locking engagement with the at least one guide rail in the locking position of the pivoting arm; and
the at least one swivel arm has a length adjustment device.

Über die längenverstellbare Schwenkarmeinrichtung wird es auf besonders einfache Weise möglich, die Verriegelungseinrichtung in und außer Verriegelungseingriff zu bringen, da eine Anpassung zur Höhenposition der Aufzugskabine und Position der Verriegelungsstelle an der Führungsschiene möglich wird. Besondere Vorteile ergeben sich mit Verriegelungseinrichtungen, bei denen ein Verriegelungsbolzen vorgesehen ist, der mit der Führungsschiene und/oder mit der schwenkarmseitigen Verriegelungsvorrichtung zusammenwirkt indem er in eine Riegelaufnahme der schwenkarmseitigen Verriegelungsvorrichtung und/oder in eine Riegelaufnahme in der Führungsschiene eingreift. Während der Wartung an der Bremse oder am Antriebsmotor kann die Aufzugskabine unter Umständen durch das Gewicht der Kabine und/oder durch das Gegengewicht nach unten oder nach oben beaufschlagt werden und durch eine entsprechende gegebenenfalls minimale Auf- und/oder Abbewegung eine Verklemmung des Riegelbolzens verursachen. Aufgrund der Längenverstellbarkeit des Schwenkarms wird eine solche Verriegelungseinrichtung der erfindungsgemäßen Aufzugsanlage auch bei verklemmtem Riegelbolzen von Hand leicht lösbar, indem der Schwenkarm in seiner Länge so verstellt wird, dass der Riegelbolzen entlastet wird und von Hand entfernt werden kann. Der längenverstellbare Schwenkarm wirkt in diesem Falle als Aushebevorrichtung zum Entriegeln.About the length-adjustable swivel arm device, it is possible in a particularly simple manner to bring the locking device in and out of locking engagement, since an adjustment to the height position of the elevator car and position of the locking point on the guide rail is possible. Particular advantages are obtained with locking devices in which a locking bolt is provided, which cooperates with the guide rail and / or with the pivot arm side locking device by engaging in a latch receiving the schwenkarmseitigen locking device and / or in a latch receptacle in the guide rail. During maintenance on the brake or on the drive motor, the elevator car may possibly be acted upon by the weight of the cabin and / or by the counterweight down or up and cause by a corresponding possibly minimal up and / or down movement jamming of the locking bolt. Due to the length adjustability of Schwenkarms is such a locking device of the elevator system according to the invention even with verklemmtem locking bolt by hand easily solvable by the swing arm is adjusted in its length so that the locking bolt is relieved and can be removed by hand. The length-adjustable swivel arm acts as a lifting device for unlocking in this case.

Es kann vorgesehen sein, dass die Längenverstelleinrichtung selbsthemmend ausgebildet ist. Das bietet den Vorteil, dass eine gesonderte Feststelleinrichtung zur Fixierung der eingestellten Länge des Schwenkarms entbehrlich ist und weiter Bedienungsfehler vermieden werden.It can be provided that the length adjustment device is self-locking. This offers the advantage that a separate locking device for fixing the set length of the pivot arm is unnecessary and further operator error can be avoided.

Es kann weiter vorgesehen sein, dass die Längenverstelleinrichtung ein Schraubgetriebe ist. Das Schraubgetriebe bietet den Vorteil, dass zur Längenverstellung des Schwenkarms eine verhältnismäßig geringe Verstellkraft aufzuwenden ist.It may further be provided that the length adjustment is a helical gear. The helical gear has the advantage that the length adjustment of the pivot arm is a relatively small adjustment force spent.

Weiter kann vorgesehen sein, dass ein linker Schwenkarm zur Verriegelung an einer linken Führungsschiene und ein rechter Schwenkarm zur Verriegelung an einer rechten Führungsschiene vorgesehen ist, wobei die Aufzugskabine zwischen der linken und der rechten Führungsschiene angeordnet ist. Durch die symmetrische Ausbildung der Verriegelungseinrichtung ist zum einen eine gute, insbesondere gleichmäßige Lastverteilung erreicht und zum anderen bietet die redundante Ausbildung mit zwei Schwenkarmen eine hohe Sicherheit.It can further be provided that a left pivot arm is provided for locking on a left guide rail and a right pivot arm for locking on a right guide rail, wherein the elevator car is arranged between the left and the right guide rail. Due to the symmetrical design of the locking device, on the one hand, a good, in particular uniform load distribution is achieved and, on the other hand, the redundant design with two pivoting arms offers a high degree of safety.

In einer vorteilhaften Ausbildung kann vorgesehen sein, dass das Schraubgetriebe als Spannschloss ausgebildet ist mit einem Rechts- und einem Linksgewinde sowie zwei Gewindestangen, die in das Spannschloss eingreifen.In an advantageous embodiment can be provided that the helical gear is designed as a turnbuckle with a legal and a left-hand thread and two threaded rods that engage in the turnbuckle.

Weiter kann vorgesehen sein, dass das Schraubgetriebe aus einer Doppelmutter mit einem Rechts- und einem Linksgewinde sowie zwei Gewindestangen, die in die Doppelmutter eingreifen, gebildet ist.Further, it can be provided that the helical gear is formed from a double nut with a right-hand and a left-hand thread and two threaded rods which engage in the double nut.

In einer weiteren vorteilhaften Ausbildung kann vorgesehen sein, dass das Schraubgetriebe aus einer Doppelschraube mit einem Rechts- und einem Linksgewinde sowie zwei Muttern, die die Doppelschraube übergreifen, gebildet ist.In a further advantageous embodiment it can be provided that the helical gear is formed from a double screw with a right-hand and a left-hand thread and two nuts which engage over the twin-screw.

Es kann auch vorgesehen sein, dass das Schraubgetriebe aus einer hülsenförmigen Mutter und einer in die hülsenförmige Mutter eingreifenden Gewindestange gebildet ist, wobei die Mutter mit dem Schwenkarm starr verbunden ist und die Gewindestange mit dem Schwenkarm drehbar verbunden ist oder umgekehrt.It can also be provided that the helical gear is formed from a sleeve-shaped nut and an engaging in the sleeve-shaped nut threaded rod, wherein the nut is rigidly connected to the pivot arm and the threaded rod is rotatably connected to the pivot arm or vice versa.

Bei jeder der vier vorgenannten Ausbildungen können Hilfselemente vorgesehen sein, um die Betätigungskraft durch Ausnutzung des Hebelgesetzes zu verringern, beispielsweise Backenflächen zum Ansetzen eines Schraubenschlüssels oder Öffnungen zum Einsetzen eines Hebels oder dergleichen.In each of the four aforementioned embodiments auxiliary elements may be provided to reduce the operating force by utilizing the lever law, for example, jaw surfaces for attaching a wrench or openings for inserting a lever or the like.

In bevorzugten Ausführungen kann vorgesehen sein, dass die Längenverstelleinrichtung in den Schwenkarm integriert ist. Der Schwenkarm kann also beispielsweise im Wesentlichen aus zwei Gewindestangen gebildet sein, die durch eine Doppelmutter miteinander verbunden sind. Eine derartige Doppelmutter wird auch als Spannschloss bezeichnet.In preferred embodiments, it can be provided that the length adjustment device is integrated in the swivel arm. The swivel arm can thus be formed, for example, essentially from two threaded rods, which are interconnected by a double nut. Such Double nut is also called turnbuckle.

Weiter kann vorgesehen sein, dass der Schwenkarm mittelbar oder unmittelbar mit einem auf dem Kabinendach angeordneten Schaltelement zusammenwirkt, wobei das Schaltelement betätigt ist, sobald der Schwenkarm aus seiner Ruhestellung geschwenkt ist. Das Schaltelement kann bevorzugt vorgesehen sein, um ein irrtümliches Ingangsetzen der Aufzugskabine zu vermeiden.It can further be provided that the swivel arm interacts directly or indirectly with a switching element arranged on the car roof, wherein the switching element is actuated as soon as the swivel arm is pivoted out of its rest position. The switching element may preferably be provided in order to avoid an erroneous start-up of the elevator car.

Weiter kann an dem Schwenkarm ein Betätigungselement angeordnet sein, das mit dem Schaltelement zusammenwirkt.Further, an actuating element can be arranged on the pivot arm, which cooperates with the switching element.

In einer vorteilhaften Ausbildung kann vorgesehen sein, dass das Schaltelement als ein Schalter ausgebildet ist, der unmittelbar oder mittelbar den Stromkreis des Aufzugmotors unterbricht. Bei mittelbarer Betätigung kann der Schalter mit einem Eingang einer Steuerungseinrichtung verbunden sein, die u. a. den Betrieb des Aufzugmotors steuert.In an advantageous embodiment it can be provided that the switching element is designed as a switch which interrupts the circuit of the elevator motor directly or indirectly. In indirect actuation, the switch can be connected to an input of a control device, the u. a. controls the operation of the elevator motor.

Es kann auch vorgesehen sein, dass das Schaltelement als ein berührungsloser Sensor ausgebildet ist. Bei dem Sensor kann es sich beispielsweise um einen magnetischen Sensor, wie einen Hallsensor, oder um einen optischen Sensor handeln.It can also be provided that the switching element is designed as a non-contact sensor. The sensor may be, for example, a magnetic sensor, such as a Hall sensor, or an optical sensor.

Es kann vorgesehen sein, dass die an dem freien Ende des Schwenkarms angeordnete Verriegelungsvorrichtung eine gelenkig gelagerte Riegelbolzenaufnahme aufweist und die mindestens eine Führungsschiene ein schließblechartiges Verriegelungsblech aufweist und ein Riegelbolzen vorgesehen ist, der im Verriegelungseingriff mit der Riegelbolzenaufnahme der Verriegelungsvorrichtung und dem schließblechartigen Verriegelungsblechs der mindestens einen Führungsschiene zusammenwirkt. Es ist also vorgesehen, die Verriegelungsvorrichtung nach dem Prinzip des Formschlusses auszubilden.It can be provided that arranged at the free end of the pivot arm locking device has a hinged locking bolt receptacle and the at least one guide rail has a lock plate-like locking plate and a locking bolt is provided which in locking engagement with the locking bolt receptacle of the locking device and the locking plate-like locking plate the at least one guide rail cooperates. It is therefore intended to form the locking device according to the principle of positive engagement.

Die Erfindung wird nun anhand von Ausführungsbeispielen näher erläutert. Es zeigen

Fig. 1
ein erstes Ausführungsbeispiel einer Verriegelungseinrichtung der erfindungsgemäßen Aufzugsanlage;
Fig. 2
die Verriegelungseinrichtung in Fig. 1 in der Draufsicht;
The invention will now be explained in more detail with reference to exemplary embodiments. Show it
Fig. 1
a first embodiment of a locking device of the elevator installation according to the invention;
Fig. 2
the locking device in Fig. 1 in the plan view;

Fig. 1 und 2 zeigen eine Verriegelungseinrichtung 1 einer Aufzugsanlage, die auf dem Kabinendach einer Aufzugskabine 2 angeordnet ist. Die Aufzugskabine 2 ist an einer linken T-förmigen Führungsschiene 211 und einer rechten T-förmigen Führungsschiene 21 r geführt. Fig. 1 and 2 show a locking device 1 an elevator installation, which is arranged on the cabin roof of an elevator car 2. The elevator car 2 is guided on a left T-shaped guide rail 211 and a right T-shaped guide rail 21 r.

Die Aufzugskabine 2 wird über einen nicht dargestellten Antriebsmotor zur vertikalen Bewegung entlang den Führungsschienen angetrieben. Um die Aufzugskabine 2 mit dem Abtrieb des Antriebsmotors zu verbinden, kann eine nicht dargestellte Seileinrichtung vorgesehen sein, die über eine von dem Antriebsmotor angetriebene Treibscheibe angetrieben ist. Anstelle der Seileinrichtung kann jedoch auch eine Antriebseinrichtung vorgesehen sein, die am Boden der Aufzugskabine angreift und hydraulisch angetrieben ist. Die Antriebseinrichtung kann also wie an sich bekannt bei den Aufzugsanlagen unterschiedlich gestaltet sein. Wesentlich ist, dass die Aufzugskabine an einer oder mehreren ortsfest angeordneten Führungsschienen 21l, 21r geführt ist und dass die Verriegelungseinrichtung 1 auf dem Kabinendach angeordnet ist und die Verriegelungseinrichtung 1 in der Verriegelungsstellung mit einer der beiden Führungsschienen 21l, 21r zusammenwirkt, so dass die Aufzugskabine 2 an den Führungsschienen verriegelt gehalten ist.The elevator car 2 is driven by a drive motor, not shown, for vertical movement along the guide rails. In order to connect the elevator car 2 with the output of the drive motor, a cable device, not shown, may be provided, which is driven via a driven by the drive motor traction sheave. Instead of the cable device, however, it is also possible to provide a drive device which acts on the floor of the elevator car and is hydraulically driven. The drive device can thus be designed differently as is known in the elevator systems. It is essential that the elevator car is guided on one or more stationary arranged guide rails 21l, 21r and that the locking device 1 is arranged on the car roof and the locking device 1 in the locking position with one of the two Guide rails 21l, 21r cooperates, so that the elevator car 2 is held locked to the guide rails.

Die Verriegelungseinrichtung 1 weist zwei Schwenkarme 11 auf, die über Schwenklager 221 schwenkbar mit einem auf dem Kabinendach angeordneten Querträger 22 verbunden sind. Die Schwenkarme 11 liegen in Ruhestellung auf dem Querträger 22 auf, wobei die Längsachsen der Schwenkarme 11 parallel zur Längsachse des Querträgers 22 sind. In dem in Fig. 1 und 2 dargestellten Ausführungsbeispiel ist der rechte Schwenkarm in Ruhestellung.The locking device 1 has two pivot arms 11, which are pivotally connected via pivot bearings 221 with a arranged on the car roof cross member 22. The pivot arms 11 are in the rest position on the cross member 22, wherein the longitudinal axes of the pivot arms 11 are parallel to the longitudinal axis of the cross member 22. In the in Fig. 1 and 2 illustrated embodiment, the right pivot arm is in the rest position.

Wird nun die Aufzugskabine 2 zu Wartungszwecken in ihre obere Endstellung verfahren, ist vorgesehen, dass die beiden Schwenkarme 11 in Richtung auf die linke bzw. rechte Führungsschiene 21l, 21r ausgeschwenkt werden und mittels eines Riegelbolzens 113r auf der Führungsschiene fixiert werden. Die Schwenkarme 11 weisen an ihrem den Schwenklagern 221 abgewandten Endabschnitt eine gelenkig gelagerte Riegelbolzenaufnahme 113 auf. Die Riegelbolzenaufnahme 113 ist mit einen U-förmig ausgebildeten Endabschnitt ausgebildet, der wie auch die Führungsschiene ein Durchgangsloch aufweist, das zur Aufnahme des Riegelbolzens 113r bestimmt ist und das im fixierten Zustand des Schwenkarms 11 von dem Riegelbolzen 113r durchgriffen ist. Bei dem Riegelbolzen 113r kann es sich beispielsweise um eine Befestigungsschraube handeln, die in ein Innengewinde der Riegelbolzenaufnahme 113 eingreift. Die Riegelbolzenaufnahme 113 und der Riegelbolzen 113r bilden eine formschlüssige Verbindungsvorrichtung, die in das Durchgangsloch der Führungsschiene eingreift.If now the elevator car 2 is moved to its upper end position for maintenance purposes, it is provided that the two pivot arms 11 are swiveled in the direction of the left or right guide rail 21l, 21r and fixed on the guide rail by means of a locking bolt 113r. The pivot arms 11 have at their end facing away from the pivot bearings 221 an articulated locking bolt receptacle 113 on. The locking bolt receptacle 113 is formed with a U-shaped end portion which, like the guide rail has a through hole which is intended to receive the locking bolt 113r and which is penetrated in the fixed state of the pivot arm 11 of the locking bolt 113r. The locking bolt 113r may, for example, be a fastening screw which engages in an internal thread of the locking bolt receptacle 113. The locking bolt receptacle 113 and the locking bolt 113r form a positive connection device which engages in the through hole of the guide rail.

Die Schwenkarme 11 sind durch eine als Schraubgetriebe ausgebildete Spanneinrichtung längenverstellbar ausgebildet. Das Schraubgetriebe ist bei dem in Figur 2 dargestellten Ausführungsbeispiel als Spannschloss 112 ausgebildet. Es weist als Anschlüsse ein Innenlinksgewinde und ein Innenrechtsgewinde für zwei Gewindestangen 111 auf, die ein entsprechendes Links- bzw. Rechtsgewinde aufweisen. Das Spannschloss 112 ist als ein jochförmiges Element mit zwei jeweils als Innengewinde ausgebildeten Anschlüssen ausgebildet.The pivot arms 11 are formed adjustable in length by a trained as a helical tensioning device. The helical gear is at the in FIG. 2 illustrated embodiment designed as a turnbuckle 112. It has as connections an internal left-hand thread and an internal right-hand thread for two threaded rods 111, which have a corresponding left-hand or right-hand thread. The turnbuckle 112 is formed as a yoke-shaped element with two terminals each formed as an internal thread.

Die Länge des Schwenkarms 11 wird durch Drehen des Spannschlosses 112 so eingestellt, dass das Durchgangsloch der Riegelbolzenaufnahme 113 mit dem Durchgangsloch der betreffenden Führungsschiene 21l bzw. 21r fluchtet, so dass der Riegelbolzen 113r einsetzbar bzw. entnehmbar ist.The length of the swing arm 11 is adjusted by turning the turnbuckle 112 so that the through hole of the latch pin receptacle 113 is aligned with the through hole of the respective guide rail 21l and 21r, respectively, so that the latch bolt 113r is insertable.

Werden nun Wartungsarbeiten an der Bremse oder am Antriebsmotor der Aufzugskabine 2 durchgeführt und wird dabei z.B. die Bremse gelockert, wird die Aufzugskabine 2 eine nach oben oder nach unten gerichtete Kraft auf den Riegelbolzen 113r ausüben, die den Riegelbolzen 113r in der Riegelbolzenaufnahme 113 verklemmt. In der Regel ist diese Kraft nach oben gerichtet, weil ein an der Hubseileinrichtung angeordnetes Gegengewicht eine höhere Masse aufweist als die leere Aufzugskabine 2 und der auf der Aufzugskabine stehende Monteur zusammen. Der Riegelbolzen 113r ist wegen der hohen auftretenden Kräfte von Hand nicht mehr lösbar. Sobald jedoch die Bremse der Aufzugskabine 2 wieder in Betrieb ist, kann der Riegelbolzen 113r durch Längenänderung des Schwenkarms 11 entlastet werden, wobei die Längenänderung durch Drehen der Doppelmutter 112 herbeiführbar ist. -If now maintenance work on the brake or on the drive motor of the elevator car 2 is carried out and is thereby e.g. the brake is released, the elevator car 2 will exert an upward or downward force on the latch bolt 113r, which jams the latch bolt 113r in the latch bolt receptacle 113. As a rule, this force is directed upward because a counterweight arranged on the hoisting cable device has a higher mass than the empty elevator car 2 and the fitter standing on the elevator car together. The locking bolt 113r is not solvable by hand due to the high forces occurring. However, as soon as the brake of the elevator car 2 is in operation again, the locking bolt 113r can be relieved by changing the length of the pivot arm 11, wherein the change in length can be brought about by turning the double nut 112. -

Der Schwenkarm 11 weist weiter ein streifenförmiges Betätigungselement 114 auf, das in der Ruhestellung des Schwenkarms mit einem auf dem Querträger 22 angeordneten Sicherheitsschalter 12 zusammenwirkt. Der Sicherheitsschalter 12 kann beispielsweise ein elektrischer Schalter sein, der in dem Stromkreis des Aufzugmotors (in Fig. 1 und 2 nicht dargestellt) angeordnet ist und der den Stromkreis unterbricht, wenn der zugeordnete Schwenkarm 11 aus der Ruhelage geschwenkt ist. Es kann aber auch vorgesehen sein, dass der Sicherheitsschalter 12 mit einer Aufzugsteuerung zusammenwirkt und einen Schaltimpuls auslöst, wenn der zugeordnete Schwenkarm 11 aus der Ruhelage geschwenkt ist. Es kann auch vorgesehen sein, dass es sich bei dem Sicherheitsschalter um einen Sensor handelt, beispielsweise einen magnetischen oder einen optischen Sensor. Vorteilhafterweise kann vorgesehen sein, dass die beiden Sicherheitsschalter 12 in Reihe geschaltet sind, so dass der Stromkreis des Aufzugmotors bereits unterbrochen ist, wenn einer der Sicherheitsschalter 12 betätigt ist.The pivot arm 11 further has a strip-shaped actuating element 114, which cooperates in the rest position of the pivot arm with a arranged on the cross member 22 safety switch 12. Of the Safety switch 12 may be, for example, an electrical switch which is in the circuit of the elevator motor (in Fig. 1 and 2 not shown) is arranged and which interrupts the circuit when the associated pivot arm 11 is pivoted from the rest position. But it can also be provided that the safety switch 12 cooperates with an elevator control and triggers a switching pulse when the associated pivot arm 11 is pivoted from the rest position. It can also be provided that the safety switch is a sensor, for example a magnetic or an optical sensor. Advantageously, it can be provided that the two safety switches 12 are connected in series, so that the circuit of the elevator motor is already interrupted when one of the safety switch 12 is actuated.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Verriegelungseinrichtunglocking device
22
Aufzugskabinecar
1111
Schwenkarmswivel arm
1212
Sicherheitsschaltersafety switch
12ö12 NC
Lastöseclevis
21l21l
linke Führungsschieneleft guide rail
21r21r
rechte Führungsschieneright guide rail
2222
Querträgercrossbeam
111111
Gewindestangethreaded rod
112112
Spannschlossturnbuckle
113113
RiegelbolzenaufnahmeLatch bolt receiving
113r113r
Riegelbolzenlocking bolt
114114
Betätigungselementactuator
221221
Schwenklagerpivot bearing
213213
Klemmeinrichtungclamper
213k213k
Klemmbackejaw
213q213Q
Querlenkerwishbone
213s213S
SchenkelfederLeg spring
213z213z
Zughebelpull lever

Claims (14)

  1. Lift assembly with a lift car (2), a fixed guide rail device with at least one guide rail (21l, 21r) and a drive motor in order to move the lift car (2) up and down along the minimum of one guide rail (211, 21r), whereby the lift car (2) has a car roof and an upper cross member (22) on which is arranged a locking device which can be brought into a locking position with the minimum of one guide rail (211, 21r) in locking engagement,
    where the locking device has at least one swivel arm (11) which is linked by its end to the upper cross member (22) of the lift car (2) and with its free other end having a locking mechanism (113);
    where the minimum of one swivel arm (11) is arranged and mounted on the cross member (22) in such a way that it can be swivelled into a basically parallel and/or incumbent resting position to the cross member (22) or car roof and upwards into a linked locked position, and
    that the locking mechanism (113) arranged at the end of the minimum of one swivel arm (11) can be brought to the locking position of the swivel arm (11) in locking engagement with the minimum of one guide rail (211, 21r), characterised in that
    the minimum of one swivel arm (11) has a length adjustment device so that the minimum of one swivel arm (11) is designed as a swivel arm (11) which is adjustable in length which operates as a lift-out mechanism for unlocking purposes.
  2. Lift assembly according to claim 1
    characterised in that
    a left swivel arm is provided for locking purposes on a left guide rail (211) and a right swivel arm for locking purposes on a right guide rail (21r), whereby the lift car (2) is located between the left and the right guide rails (21l, 21r) on these rails.
  3. Lift assembly according to claim 1 or 2
    characterised in that
    the length adjustment device of the swivel arm (11) is designed to be self-locking.
  4. Lift assembly according to claims 1 to 3
    characterised in that
    the length adjustment device of the swivel arm (11) is a spiral gear.
  5. Lift assembly according to claim 4
    characterised in that
    the spiral gear is designed as a spanner nut (112) with a right and left thread as well as two threaded bars (111) which engage with the spanner nut (112).
  6. Lift assembly according to claim 4
    characterised in that
    the spiral gear is formed of a double nut with a right and left thread as well as two threaded bars which engage with the double nut.
  7. Lift assembly according to claim 4
    characterised in that
    the spiral gear is formed of a double screw with a right and left thread as well as two nuts which overlap the double screw.
  8. Lift assembly according to claim 4
    characterised in that
    the spiral gear is formed of a sleeve-type nut and a threaded bar which engages in the sleeve-type nut, whereby the nut is fixed rigidly with the swivel arm and the threaded bar is connected in such a way that it can pivot with the swivel arm or vice versa.
  9. Lift assembly according to one of the preceding claims
    characterised in that
    the length adjustment device is integrated into the swivel arm (11).
  10. Lift assembly according to one of the preceding claims
    characterised in that
    the swivel arm (11) operates together indirectly or directly with a switch element (12) located on the car roof, whereby the switch element (12) is activated when the swivel arm (11) swings from its resting position.
  11. Lift assembly according to claim 10
    characterised in that
    an actuating element (114) is located on the swivel arm (11) and operates together with the switch element (12).
  12. Lift assembly according to claim 10 or 11
    characterised in that
    the switch element (12) is designed as a switch which directly or indirectly cuts off the electric circuit of the car engine.
  13. Lift assembly according to claim 10 or 11
    characterised in that
    the switch element (12) is designed as a contactless sensor.
  14. Lift assembly according to one of the preceding claims
    characterised in that
    the locking mechanism located at the free end of the swivel arm (11) has a simply supported twist lock holding fixture (113) and the minimum of one guide rail (211, 21r) has a closing plate in the form of a locking plate and a twistlock (113r), which operates together in the locking engagement with the twistlock holding fixture and the closing plate in the form of a locking plate of the guide rail (11), of which there is at least one.
EP20100010465 2009-09-29 2010-09-24 Lift assembly with locking device Not-in-force EP2301881B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910048489 DE102009048489A1 (en) 2009-09-29 2009-09-29 Elevator installation with locking device

Publications (2)

Publication Number Publication Date
EP2301881A1 EP2301881A1 (en) 2011-03-30
EP2301881B1 true EP2301881B1 (en) 2012-05-30

Family

ID=43332732

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100010465 Not-in-force EP2301881B1 (en) 2009-09-29 2010-09-24 Lift assembly with locking device

Country Status (3)

Country Link
EP (1) EP2301881B1 (en)
DE (1) DE102009048489A1 (en)
PT (1) PT2301881E (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014161379A1 (en) * 2013-04-03 2014-10-09 中国矿业大学 Guide rail rope deflection inhibition mechanism and method for parallel soft cable suspension system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2565013B2 (en) * 2015-12-23 2017-02-08 Mac Puar, S.A. Parachute unlocking device for an elevator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3353032B2 (en) * 1998-02-10 2002-12-03 三菱電機株式会社 elevator
KR100506476B1 (en) * 2001-05-30 2005-08-03 미쓰비시덴키 가부시키가이샤 Elevator device and car movement limiting device thereof
CN1960929A (en) * 2005-05-31 2007-05-09 三菱电机株式会社 Elevator device
JP2007246212A (en) * 2006-03-15 2007-09-27 Hitachi Building Systems Co Ltd Elevator car-fixing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014161379A1 (en) * 2013-04-03 2014-10-09 中国矿业大学 Guide rail rope deflection inhibition mechanism and method for parallel soft cable suspension system
US9689257B2 (en) 2013-04-03 2017-06-27 China University Of Mining And Technology Guide rail rope deflection inhibition mechanism and method for parallel soft cable suspension system

Also Published As

Publication number Publication date
EP2301881A1 (en) 2011-03-30
DE102009048489A1 (en) 2011-04-07
PT2301881E (en) 2012-07-17

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