EP1052212B1 - Device for carrying out work in an elevator shaft - Google Patents

Device for carrying out work in an elevator shaft Download PDF

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Publication number
EP1052212B1
EP1052212B1 EP00109499A EP00109499A EP1052212B1 EP 1052212 B1 EP1052212 B1 EP 1052212B1 EP 00109499 A EP00109499 A EP 00109499A EP 00109499 A EP00109499 A EP 00109499A EP 1052212 B1 EP1052212 B1 EP 1052212B1
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EP
European Patent Office
Prior art keywords
lift
shaft
maintenance
elevator
rest
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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EP00109499A
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German (de)
French (fr)
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EP1052212A1 (en
Inventor
Rolf Masch.-Ing. Müller
Hanspeter El.-Ing. Bloch
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Inventio AG
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Inventio AG
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Publication of EP1052212A1 publication Critical patent/EP1052212A1/en
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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
    • B66B5/28—Buffer-stops for cars, cages, or skips
    • B66B5/288—Buffer-stops for cars, cages, or skips with maintenance features
    • 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
    • B66B5/0043—Devices enhancing safety during maintenance
    • B66B5/005—Safety of maintenance personnel

Definitions

  • the invention relates to an elevator system with a Device for carrying out work in one Elevator shaft with shortened shaft head, in which Elevator shaft a counterweight and an elevator car with Maintenance platform are movable, from which maintenance work at Schacht equipment are executable.
  • a disadvantage of the known device is that mechanically reinforces the cabin wall supporting the pedestal must be and also fittings for folding and locking of the podium are necessary, where the elevator users get stuck with clothes or objects because the pedestal can be found in the common area Elevator user is located.
  • an elevator device with become known an elevator car The roof of the Elevator cabin serves as a maintenance platform for work in the Elevator shaft. At the upper yoke of the elevator car is a extendible, electrically monitored bumper provided, the working space between the roof of the elevator car and the shaft cover secures. If during maintenance the Elevator car should continue driving illegally, pushes the bumper against a limit switch that drives switches off electrically.
  • a disadvantage of this device is the arrangement of Bumper at the upper yoke of the elevator car.
  • the Freedom of movement of maintenance personnel on the cabin roof is too much due to the mechanical structure of the bumper limited. False triggering of the safety device can not be avoided during maintenance.
  • the safety device offers only one electrical safety, in the worst case, the Elevator car still continue to go up and must be caught by means of a buffer.
  • the disadvantage of this device is the big mechanical effort to secure the working space.
  • the swing buffer has a large footprint, not available in every elevator shaft.
  • the invention aims to remedy this situation.
  • the invention as characterized in claim 1 solves the task to avoid the disadvantages of the known device and a device for working in an elevator shaft that neither for the maintenance staff nor for the Elevator user in the elevator car represents a danger.
  • the advantages achieved by the invention are in essential to see that for the Elevator car user is in no danger of sharing to hurt the maintenance platform, because the maintenance platform itself outside the common area of the Elevator cabin user on the roof of the elevator cabin located.
  • the cabin interior is through the maintenance platform not impaired.
  • sales strategy is the aesthetic appearance of the cabin interiors of larger economic importance.
  • the maintenance platform comes this Demand, for example, by the invisible arrangement the maintenance platform completely contrary.
  • the maintenance platform also has an increased load capacity, so in the shaft too Mounting or dismounting parts on the maintenance platform can be stored.
  • the location of the maintenance platform on the roof of the elevator car can be chosen so that the maintenance platform is not located in the shaft head Pit equipment is surmounted, with the maintenance platform has a sufficiently large footprint.
  • the location, the sufficient footprint and the increased load capacity of the Maintenance platforms ensure the safety of the Maintenance personnel.
  • the use of the Cabin roofs as maintenance platform necessary Safety device extremely easy to operate and quickly ready for use without any effort. Further advantageous is that during maintenance the cabin interior, especially the cabin walls are not scratched or damaged because the maintenance platform is not in the Elevator car is located. With a lift shaft with Shortened shaft head is the safety of Maintenance staff also at a maintenance position of Elevator cabin below the top floor guaranteed.
  • a machine roomless elevator is shown. With 1 is a more limited by shaft walls 1.1 Lift shaft referred to, in which an elevator car 2 and a counterweight 3 are movable. In the shortened Shaft head 4 is arranged a traction sheave 5, which with a drive, not shown, is in communication. The Traction sheave 5 and / or the drive is for example from worn on a wall or ceiling console.
  • a carrying cable 6 has a rope course, for example, from a first fixed point 6.1 via two pulleys 6.2, 6.3 of the elevator car 2, continue over the traction sheave 5, continue over one Pulley 6.4 of the counterweight 3 and on to a second fixed point 6.5.
  • the roof of the elevator car is as a maintenance platform 10th trained by the maintenance staff 11 working in the Elevator shaft 1 can perform, such as Maintenance work on traction sheave 5, guide rails, Shaft switch, drive, suspension cable 6, etc.
  • Elevator car 2 and counterweight 3 are in two shown different layers. With broken line the elevator system is shown in normal operation, the Elevator car 2 on the top floor 1.3 with the corresponding lowest position of the counterweight 3 scarce is shown standing over a buffer device 12.
  • the lift system is in full operation during maintenance operation shown.
  • the machine roomless elevator system shown offers with its shortened shaft head 4 for maintenance from the canopy 2.1 from not enough height H for one correct crossing Ü (distance between Canopy 2.1 and manhole 1.2) of example a meter.
  • Ü distance between Canopy 2.1 and manhole 1.2
  • the counterweight 3 When the elevator car 2 is empty, the counterweight 3 has opposite The Augfzugskabine 2 is overweight and can be at simultaneously pulling up the elevator car 2 down move. Without security device 13 there is a danger that is the counterweight 3 except for the buffer device 12 lowers and located on the maintenance platform 10 Maintenance staff 11 because of the shortened shaft head 4 endangered. With the safety device 13 is the way of the counterweight 3 is limited to a height that the required crossing Ü between cabin roof 2.1 and Shaft cover 1.2 guaranteed in any case.
  • the safety device 13 has in a first Variant a supervised, height adjustable Support 13.1 on, for example by means of a spindle 13.2 is height adjustable.
  • the spindle 13.2 is from a Motor 13.3 driven.
  • the intended as Fahrwegbegrenzung Safety device 13 is activated as follows: If the elevator car 2 at most on the second highest Floor 1.4, the engine 13.3 can by means of a Elevator control AS and by means of a first switch 13.4 be turned on in the upward direction. The support 13.1 moves up until a first limit switch 13.5 which opens a first contact 13.51, one second contact 13.52 closes and the engine 13.3 off. The support 13.1 is now in for the Crossing Ü correct security situation. Then that will be Counterweight 3 by means of elevator control AS and drive slowly lowered until a second, the location of the support 13.1 detecting limit switch 13.7 by means of Counterweight 3 is pressed. The second limit switch 13.7 opens a third contact 13.71, causing the Elevator drive is switched off.
  • the counterweight 3 is on the support 13.1, wherein the elevator car 2 is not can move up more.
  • the elevator car 2 is now secured against any further upward movement.
  • the Working in the elevator shaft 1 can now be safe be executed.
  • the elevator car 2 is at least on the second highest Floor 1.4 lowered and the engine 13.3 by means of Elevator control AS and by means of a second switch 13.8 switched in the downward direction.
  • the support 13.1 moves until it leaves the track of the counterweight 3 in normal operation.
  • Fig. 2 shows a serving as a safety device 13 Manual support 13.1, which is in the driveway of the Counterweight 3 is manually pivotable. With interrupted Line is shown the rest position of the support 13.1, the is monitored by means of limit switch 13.7 and 13.71 contact. Normal operation of the elevator system is only in the rest position of the Supports 13.1 possible. Thus the security of the Maintenance staff 11 is ensured in each case, a further limit switch can be provided, which is the Working position of the support 13.1 monitored.
  • the support 13.1 is pivotable about a pivot point D1 and along a Column 13.11 height adjustable.
  • Fig. 3 shows a serving as a safety device 13 height adjustable buffer device consisting of buffer 12 and lifting device 12.1.
  • the buffer is used 12 in the working position shown as a support 13.1.
  • the Working position of the buffer 12 is by means of limit switch 13.7 and contact 13.71 and the rest position of the buffer 12 by means of Limit switch 13.9 and contact 13.91 monitored and if exceptional operating conditions are detected, the elevator control AS shuts off the elevator installation.
  • the lifting device 12.1 works the scissor principle. It can be manual or motorized or be driven by cylinders and pressure medium.
  • the above-mentioned safety device 13 can instead on the counterweight side of the cab in the shaft head 4 to be ordered.

Landscapes

  • Heat Treatment Of Articles (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

The lift arrangement has a counter weight and a lift cabin (2) that can be moved with a maintenance platform (10). The roof the lift cabin serves as the maintenance platform. A maintenance operation safety device (13) ensures a specified distance (U) between the cabin roof (2.1) and the shaft ceiling (1.2) for the safety of the maintenance personnel and secures the lift cabin against any further u(upward movement.

Description

Die Erfindung betrifft ein Aufzugssystem mit einer Einrichtung zur Ausführung von Arbeiten in einem Aufzugsschacht mit verkürztem Schachtkopf, in welchem Aufzugsschacht ein Gegengewicht und eine Aufzugskabine mit Wartungsbühne verfahrbar sind, von der aus Wartungsarbeiten an Schachtausrüstung ausführbar sind.The invention relates to an elevator system with a Device for carrying out work in one Elevator shaft with shortened shaft head, in which Elevator shaft a counterweight and an elevator car with Maintenance platform are movable, from which maintenance work at Schacht equipment are executable.

Aus der Schrift JP 05097357 ist eine Einrichtung für den Unterhalt von Schachtausrüstung einer Aufzugsanlage bekannt geworden. In einer Aufzugskabine ist ein aus der Kabinenwand klappbares Podest vorgesehen, das als Standfläche für das Unterhaltspersonal während den Unterhaltsarbeiten dient. Im Dach der Aufzugskabine ist eine mittels Deckel verschliessbare Luke vorgesehen, die den Zugang zur Schachtausrüstung gewährt. Das Unterhaltspersonal stellt sich auf das Podest und kann mit aus der Kabine ragendem Oberkörper die Arbeiten im Schacht ausführen.From the document JP 05097357 is a device for the Maintenance of manhole equipment of an elevator installation known become. In an elevator car is one from the Cabin wall folding pedestal provided as a Stand space for the maintenance staff during the Maintenance work serves. In the roof of the elevator car is provided by means of a lid lockable hatch, the granted access to the shaft equipment. The Maintenance staff stands on the pedestal and can with From the cabin protruding upper body work in the shaft To run.

Ein Nachteil der bekannten Einrichtung liegt darin, dass die das Podest tragende Kabinenwand mechanisch verstärkt werden muss und zudem Beschläge zum Klappen und Feststellen des Podests notwendig sind, an denen die Aufzugsbenutzer mit Kleidungsstücken oder Gegenständen hängen bleiben können, weil das Podest sich im Aufenthaltsbereich der Aufzugsbenutzer befindet.A disadvantage of the known device is that mechanically reinforces the cabin wall supporting the pedestal must be and also fittings for folding and locking of the podium are necessary, where the elevator users get stuck with clothes or objects because the pedestal can be found in the common area Elevator user is located.

Aus der Schrift JP 09058942 ist eine Aufzugseinrichtung mit einer Aufzugskabine bekannt geworden. Das Dach der Aufzugskabine dient als wartungsbühne für Arbeiten im Aufzugsschacht. Am oberen Joch der Aufzugskabine ist eine ausziehbare, elektrisch überwachte Stossstange vorgesehen, die den Arbeitsraum zwischen dem Dach der Aufzugskabine und der Schachtdecke sichert. Falls bei Wartungsarbeiten die Aufzugskabine unerlaubterweise weiter fahren sollte, stösst die Stossstange gegen einen Endschalter, der den Antrieb elektrisch abschaltet.From the document JP 09058942 an elevator device with become known an elevator car. The roof of the Elevator cabin serves as a maintenance platform for work in the Elevator shaft. At the upper yoke of the elevator car is a extendible, electrically monitored bumper provided, the working space between the roof of the elevator car and the shaft cover secures. If during maintenance the Elevator car should continue driving illegally, pushes the bumper against a limit switch that drives switches off electrically.

Nachteilig bei dieser Einrichtung ist die Anordnung der Stossstange am oberen Joch der Aufzugskabine. Die Bewegungsfreiheit des Wartungspersonals auf dem Kabinendach ist durch den mechanischen Aufbau der Stossstange zu sehr eingeschränkt. Fehlauslösungen der Sicherheitseinrichtung können bei Wartungsarbeiten nicht vermieden werden. Ausserdem bietet die Sicherheitseinrichtung lediglich eine elektrische Sicherheit, im schlechtesten Fall kann die Aufzugskabine trotzdem nach oben weiterfahren und muss mittels eines Puffers aufgefangen werden.A disadvantage of this device is the arrangement of Bumper at the upper yoke of the elevator car. The Freedom of movement of maintenance personnel on the cabin roof is too much due to the mechanical structure of the bumper limited. False triggering of the safety device can not be avoided during maintenance. In addition, the safety device offers only one electrical safety, in the worst case, the Elevator car still continue to go up and must be caught by means of a buffer.

Aus der US 5 727 657 ist eine Aufzugsanlage mit einer temporären Arbeitsraumsicherung bekannt geworden, die das Einfahren der Aufzugskabine in eine Schachtgrube mit reduzierter Tiefe verhindert. Ein in der Schachtgrube angeordneter Schwenkpuffer ist in den Fahrweg der Aufzugskabine schwenkbar. Ein Aktuator hält den Schwenkpuffer in der Ausgangslage, bei der der Fahrweg der Aufzugskabine frei ist und die Aufzugskabine bis auf das unterste Stockwerk fahren kann. Bei manueller Entriegelung der Stockwerktür kippt der Schwenkpuffer unter Einwirkung der eigenen Schwerkraft in den Fahrweg der Aufzugskabine und sichert damit den Arbeitsraum in der Schachtgrube.From US 5,727,657 is an elevator system with a temporary work space backup became known that the Retracting the elevator car in a pit with reduced depth prevented. One in the pit arranged pivoting buffer is in the guideway of Elevator car swiveling. An actuator holds the Swing buffer in the starting position, in which the track of the Elevator car is free and the elevator car except for the can drive on the lowest floor. For manual unlocking the landing door tilts the swivel buffer under action gravity in the track of the elevator car and thus secures the working space in the shaft pit.

Nachteilig bei dieser Einrichtung ist der grosse mechanische Aufwand zur Sicherung des Arbeitsraumes. Ausserdem hat der Schwenkpuffer einen grossen Platzbedarf, der nicht in jedem Aufzugsschacht zur Verfügung steht.The disadvantage of this device is the big mechanical effort to secure the working space. In addition, the swing buffer has a large footprint, not available in every elevator shaft.

Hier will die Erfindung Abhilfe schaffen. Die Erfindung, wie sie in Anspruch 1 gekennzeichnet ist, löst die Aufgabe, die Nachteile der bekannten Einrichtung zu vermeiden und eine Einrichtung für Arbeiten in einem Aufzugsschacht zu schaffen, die weder für das Unterhaltspersonal noch für die Aufzugsbenutzer in der Aufzugskabine eine Gefahr darstellt.The invention aims to remedy this situation. The invention, as characterized in claim 1 solves the task to avoid the disadvantages of the known device and a device for working in an elevator shaft that neither for the maintenance staff nor for the Elevator user in the elevator car represents a danger.

Die durch die Erfindung erreichten Vorteile sind im wesentlichen darin zu sehen, dass für die Aufzugskabinenbenutzer keine Gefahr besteht, sich an Teilen der Wartungsbühne zu verletzen, weil die Wartungsbühne sich ausserhalb des Aufenthaltsbereiches der Aufzugskabinenbenutzer auf dem Dach der Aufzugskabine befindet. Das Kabineninterieur wird durch die Wartungsbühne nicht beeinträchtigt. verkaufsstrategisch ist die ästhetische Aufmachung des Kabineninterieurs von grosser wirtschaftlicher Bedeutung. Die Wartungsbühne kommt dieser Forderung beispielsweise durch die unsichtbare Anordnung der Wartungsbühne voll und ganz entgegen. Die Wartungsbühne hat auch eine erhöhte Tragfähigkeit, sodass im Schacht zu montierende oder demontierte Teile auf der Wartungsbühne zwischengelagert werden können. Die Lage der Wartungsbühne auf dem Dach der Aufzugskabine kann so gewählt werden, dass die Wartungsbühne nicht von im Schachtkopf angeordneter Schachtausrüstung überragt wird, wobei die Wartungsbühne eine ausreichend grosse Standfläche hat. Die Lage, die ausreichende Standfläche und die erhöhte Tragfähigkeit der Wartungsbühne gewährleisten die Sicherheit des Unterhaltspersonal. Ausserdem ist die zur Benutzung des Kabinendaches als Wartungsbühne notwendige Sicherheitseinrichtung äusserst einfach in der Bedienung und ohne Aufwand rasch betriebsbereit. Weiter vorteilhaft ist, dass bei Wartungsarbeiten das Kabineninnere, insbesondere die Kabinenwände nicht zerkratzt oder beschädigt werden, weil sich die Wartungsbühne nicht in der Aufzugskabine befindet. Bei einem Aufzugsschacht mit verkürztem Schachtkopf ist die Sicherheit des Unterhaltspersonals auch bei einer Wartungsposition der Aufzugskabine unterhalb des obersten Stockwerkhalts gewährleistet.The advantages achieved by the invention are in essential to see that for the Elevator car user is in no danger of sharing to hurt the maintenance platform, because the maintenance platform itself outside the common area of the Elevator cabin user on the roof of the elevator cabin located. The cabin interior is through the maintenance platform not impaired. sales strategy is the aesthetic appearance of the cabin interiors of larger economic importance. The maintenance platform comes this Demand, for example, by the invisible arrangement the maintenance platform completely contrary. The maintenance platform also has an increased load capacity, so in the shaft too Mounting or dismounting parts on the maintenance platform can be stored. The location of the maintenance platform on the roof of the elevator car can be chosen so that the maintenance platform is not located in the shaft head Pit equipment is surmounted, with the maintenance platform has a sufficiently large footprint. The location, the sufficient footprint and the increased load capacity of the Maintenance platforms ensure the safety of the Maintenance personnel. In addition, the use of the Cabin roofs as maintenance platform necessary Safety device extremely easy to operate and quickly ready for use without any effort. Further advantageous is that during maintenance the cabin interior, especially the cabin walls are not scratched or damaged because the maintenance platform is not in the Elevator car is located. With a lift shaft with Shortened shaft head is the safety of Maintenance staff also at a maintenance position of Elevator cabin below the top floor guaranteed.

Erreicht wird dies mittels Begrenzung des Kabinen- und/oder Gegegengewichtfahrweges oder mittels Tragseilverlängerung bei Wartungsbetrieb. Durch die in den abhängigen Ansprüchen aufgeführten Massnahmen sind vorteilhafte Weiterbildungen und Verbesserungen der im Anspruch 1 angegebenen Einrichtung möglich. Besonders vorteilhaft ist es, mittels der Sicherheitseinrichtung den Fahrweg der Aufzugskabine oder des Gegengewichtes oder auch beider zu begrenzen. Bei Begrenzung des Fahrweges des Gegengewichtes nach unten, kann sich die damit verbundene Aufzugskabine nicht mehr, weder selbstständig noch bei Inbetriebnahme des Antriebsmotors nach oben bewegen, da bei blockiertem Gegengewicht die Seile an der Treibscheibe durchrutschen würden.This is achieved by limiting the cabin and / or Counterweight travel way or by means of carrying cable extension during maintenance operation. By the in the dependent claims listed measures are advantageous developments and improvements specified in claim 1 Facility possible. It is particularly advantageous by means of the safety device the route of the elevator car or the counterweight or both. at Limiting the travel path of the counterweight down, the associated elevator car can no longer neither independently nor at commissioning of the Move the drive motor upwards because it is blocked Counterweight slipping the ropes on the traction sheave would.

Im folgenden wird die Erfindung anhand von ein Ausführungsbeispiel darstellenden Zeichnungen näher erläutert.In the following the invention is based on a Embodiment illustrative drawings closer explained.

Es zeigen:

Fig. 1
eine schematische Darstellung einer Aufzugsanlage mit einer in einem Aufzugsschacht mit verkürztem Schachtkopf verfahrbaren Aufzugskabine mit Wartungsbühne und einem im Aufzugsschacht verfahrbaren Gegengewicht,
Fig. 2
Einzelheiten eines als Sicherheitseinrichtung dienendes, manuelles Auflager und
Fig. 3
eine als Sicherheitseinrichtung dienende, höhenverstellbare Puffereinrichtung.
Show it:
Fig. 1
1 is a schematic representation of an elevator installation with an elevator car having a maintenance platform which can be moved in an elevator shaft with shortened shaft head and with a counterweight movable in the elevator shaft;
Fig. 2
Details of serving as a safety device, manual support and
Fig. 3
serving as a safety device, height-adjustable buffer device.

In der Fig. 1 ist ein maschinenraumloser Aufzug gezeigt. Mit 1 ist ein durch Schachtwände 1.1 begrenzter Aufzugsschacht bezeichnet, in dem eine Aufzugskabine 2 und ein Gegengewicht 3 verfahrbar sind. Im verkürzten Schachtkopf 4 ist eine Treibscheibe 5 angeordnet, die mit einem nicht dargestellten Antrieb in Verbindung steht. Die Treibscheibe 5 und/oder der Antrieb ist beispielsweise von einer Wand- oder Deckenkonsole getragen. Ein Tragseil 6 hat einen Seilverlauf beispielsweise von einem ersten Fixpunkt 6.1 über zwei Umlenkrollen 6.2, 6.3 der Aufzugskabine 2, weiter über die Treibscheibe 5, weiter über eine Umlenkrolle 6.4 des Gegengewichtes 3 und weiter zu einem zweiten Fixpunkt 6.5.In Fig. 1, a machine roomless elevator is shown. With 1 is a more limited by shaft walls 1.1 Lift shaft referred to, in which an elevator car 2 and a counterweight 3 are movable. In the shortened Shaft head 4 is arranged a traction sheave 5, which with a drive, not shown, is in communication. The Traction sheave 5 and / or the drive is for example from worn on a wall or ceiling console. A carrying cable 6 has a rope course, for example, from a first fixed point 6.1 via two pulleys 6.2, 6.3 of the elevator car 2, continue over the traction sheave 5, continue over one Pulley 6.4 of the counterweight 3 and on to a second fixed point 6.5.

Das Dach der Aufzugskabine ist als Wartungsbühne 10 ausgebildet, von der aus Unterhaltspersonal 11 Arbeiten im Aufzugsschacht 1 ausführen kann, wie beispielsweise Wartungsarbeiten an Treibscheibe 5, Führungsschienen, Schachtschalter, Antrieb, Tragseil 6, etc..The roof of the elevator car is as a maintenance platform 10th trained by the maintenance staff 11 working in the Elevator shaft 1 can perform, such as Maintenance work on traction sheave 5, guide rails, Shaft switch, drive, suspension cable 6, etc.

Aufzugskabine 2 und Gegengewicht 3 sind in zwei unterschiedlichen Lagen gezeigt. Mit unterbrochener Linie ist die Aufzugsanlage bei Normalbetrieb gezeigt, wobei die Aufzugskabine 2 auf dem obersten Stockwerk 1.3 mit der entsprechenden tiefsten Lage des Gegengewichtes 3 knapp über einer Puffereinrichtung 12 stehend gezeigt ist.Elevator car 2 and counterweight 3 are in two shown different layers. With broken line the elevator system is shown in normal operation, the Elevator car 2 on the top floor 1.3 with the corresponding lowest position of the counterweight 3 scarce is shown standing over a buffer device 12.

Mit voller Linie ist die Aufzugsanlage bei Wartungsbetrieb gezeigt. Die gezeigte maschinenraumlose Aufzugsanlage bietet mit ihrem verkürzten Schachtkopf 4 für die Wartung vom Kabinendach 2.1 aus nicht genügend Höhe H für eine vorschriftsmässige Überfahrt Ü (Distanz zwischen Kabinendach 2.1 und Schachtdecke 1.2) von beispielsweise einem Meter. Mit der erfindungsgemässen Sicherheitseinrichtung 13 in der gezeigten Arbeitsstellung wird für die Sicherheit des Unterhaltspersonals 11 gesorgt und die geforderte Überfahrt Ü erreicht, weil der Weg der Aufzugskabine 2 nach oben begrenzt ist.The lift system is in full operation during maintenance operation shown. The machine roomless elevator system shown offers with its shortened shaft head 4 for maintenance from the canopy 2.1 from not enough height H for one correct crossing Ü (distance between Canopy 2.1 and manhole 1.2) of example a meter. With the inventive Safety device 13 in the working position shown the safety of the maintenance staff 11 is ensured and the required crossing Ü reaches because the way the Elevator car 2 is limited upwards.

Bei leerer Aufzugskabine 2 hat das Gegengewicht 3 gegenüber der Augfzugskabine 2 Übergewicht und kann sich bei gleichzeitigem Hochziehen der Aufzugskabine 2 nach unten bewegen. Ohne Sicherheitseinrichtung 13 besteht die Gefahr, dass sich das Gegengewicht 3 bis auf die Puffereinrichtung 12 absenkt und auf der Wartungsbühne 10 befindliches Unterhaltspersonal 11 wegen des verkürzten Schachtkopfes 4 gefährdet. Mit der Sicherheitseinrichtung 13 wird der Weg des Gegengewichtes 3 auf einer Höhe begrenzt, dass die geforderte Überfahrt Ü zwischen Kabinendach 2.1 und Schachtdecke 1.2 in jedem Fall gewährleistet ist.When the elevator car 2 is empty, the counterweight 3 has opposite The Augfzugskabine 2 is overweight and can be at simultaneously pulling up the elevator car 2 down move. Without security device 13 there is a danger that is the counterweight 3 except for the buffer device 12 lowers and located on the maintenance platform 10 Maintenance staff 11 because of the shortened shaft head 4 endangered. With the safety device 13 is the way of the counterweight 3 is limited to a height that the required crossing Ü between cabin roof 2.1 and Shaft cover 1.2 guaranteed in any case.

Die Sicherheitseinrichtung 13 weist in einer ersten Ausführungsvariante ein überwachtes, höhenverstellbares Auflager 13.1 auf, das beispielsweise mittels einer Spindel 13.2 höhenverstellbar ist. Die Spindel 13.2 wird von einem Motor 13.3 angetrieben.The safety device 13 has in a first Variant a supervised, height adjustable Support 13.1 on, for example by means of a spindle 13.2 is height adjustable. The spindle 13.2 is from a Motor 13.3 driven.

Die als Fahrwegbegrenzung vorgesehene Sicherheitseinrichtung 13 wird wie folgt aktiviert: Falls die Aufzugskabine 2 höchstens auf dem zweitobersten Stockwerk 1.4 steht, kann der Motor 13.3 mittels einer Aufzugssteuerung AS und mittels eines ersten Schalters 13.4 in Aufwärtsrichtung eingeschaltet werden. Das Auflager 13.1 bewegt sich nach oben, bis ein erster Endschalter 13.5 betätigt wird, der einen ersten Kontakt 13.51 öffnet, einen zweiten Kontakt 13.52 schliesst und den Motor 13.3 abschaltet. Das Auflager 13.1 ist nun in der für die Überfahrt Ü richtigen Sicherungslage. Dann wird das Gegengewicht 3 mittels Aufzugssteuerung AS und Antrieb langsam abgesenkt, bis ein zweiter, die Lage des Auflagers 13.1 detektierender Endschalter 13.7 mittels des Gegengewichtes 3 betätigt wird. Der zweite Endschalter 13.7 öffnet einen dritten Kontakt 13.71, wodurch der Aufzugsantrieb abgeschaltet wird. Das Gegengewicht 3 liegt am Auflager 13.1 auf, wobei sich die Aufzugskabine 2 nicht mehr weiter nach oben bewegen kann. Die Aufzugskabine 2 ist nun gegen jede weitere Aufwärtsbewegung gesichert. Die Arbeiten im Aufzugsschacht 1 können nun gefahrlos ausgeführt werden. Beim Übergang von Wartungsbetrieb auf Normalbetrieb zur Beförderung von Personen und/oder Gütern wird die Aufzugskabine 2 mindestens auf das zweitoberste Stockwerk 1.4 abgesenkt und der Motor 13.3 mittels der Aufzugssteuerung AS und mittels eines zweiten Schalters 13.8 in Abwärtsrichtung geschaltet. Das Auflager 13.1 bewegt sich, bis es aus dem Fahrweg des Gegengewichtes 3 bei Normalbetrieb ist.The intended as Fahrwegbegrenzung Safety device 13 is activated as follows: If the elevator car 2 at most on the second highest Floor 1.4, the engine 13.3 can by means of a Elevator control AS and by means of a first switch 13.4 be turned on in the upward direction. The support 13.1 moves up until a first limit switch 13.5 which opens a first contact 13.51, one second contact 13.52 closes and the engine 13.3 off. The support 13.1 is now in for the Crossing Ü correct security situation. Then that will be Counterweight 3 by means of elevator control AS and drive slowly lowered until a second, the location of the support 13.1 detecting limit switch 13.7 by means of Counterweight 3 is pressed. The second limit switch 13.7 opens a third contact 13.71, causing the Elevator drive is switched off. The counterweight 3 is on the support 13.1, wherein the elevator car 2 is not can move up more. The elevator car 2 is now secured against any further upward movement. The Working in the elevator shaft 1 can now be safe be executed. At the transition from maintenance operation to Normal operation for the transport of persons and / or goods the elevator car 2 is at least on the second highest Floor 1.4 lowered and the engine 13.3 by means of Elevator control AS and by means of a second switch 13.8 switched in the downward direction. The support 13.1 moves until it leaves the track of the counterweight 3 in normal operation.

Fig. 2 zeigt ein als Sicherheitseinrichtung 13 dienendes manuelles Auflager 13.1, das in den Fahrweg des Gegengewichtes 3 manuell schwenkbar ist. Mit unterbrochener Linie ist die Ruhelage des Auflagers 13.1 gezeigt, die mittels Endschalter 13.7 und Kontakt 13.71 überwacht wird. Normalbetrieb der Aufzugsanlage ist nur in der Ruhelage des Auflagers 13.1 möglich. Damit die Sicherheit des Unterhaltspersonals 11 in jedem Fall gewährleistet ist, kann ein weiterer Endschalter vorgesehen sein, der die Arbeitslage des Auflagers 13.1 überwacht. Das Auflager 13.1 ist um einen Drehpunkt D1 schwenkbar und entlang einer Stütze 13.11 höhenverstellbar. Fig. 2 shows a serving as a safety device 13 Manual support 13.1, which is in the driveway of the Counterweight 3 is manually pivotable. With interrupted Line is shown the rest position of the support 13.1, the is monitored by means of limit switch 13.7 and 13.71 contact. Normal operation of the elevator system is only in the rest position of the Supports 13.1 possible. Thus the security of the Maintenance staff 11 is ensured in each case, a further limit switch can be provided, which is the Working position of the support 13.1 monitored. The support 13.1 is pivotable about a pivot point D1 and along a Column 13.11 height adjustable.

Fig. 3 zeigt eine als Sicherheitseinrichtung 13 dienende höhenverstellbare Puffereinrichtung bestehend aus Puffer 12 und Hebeeinrichtung 12.1. In diesem Fall dient der Puffer 12 in der gezeigten Arbeitslage als Auflager 13.1. Die Arbeitslage des Puffers 12 wird mittels Endschalter 13.7 und Kontakt 13.71 und die Ruhelage des Puffers 12 mittels Endschalter 13.9 und Kontakt 13.91 überwacht und falls aussergewöhnliche Betriebszustände detektiert werden, schaltet die Aufzugssteuerung AS die Aufzugsanlage ab. Im gezeigten Beispiel arbeitet die Hebeeinrichtung 12.1 auf dem Scherenprinzip. Sie kann manuell oder motorisch oder mittels Zylindern und Druckmedium antreibbar sein. Die Hebeeinrichtung 12,1 kann beispielsweise auch teleskopartig aufgebaut sein.Fig. 3 shows a serving as a safety device 13 height adjustable buffer device consisting of buffer 12 and lifting device 12.1. In this case, the buffer is used 12 in the working position shown as a support 13.1. The Working position of the buffer 12 is by means of limit switch 13.7 and contact 13.71 and the rest position of the buffer 12 by means of Limit switch 13.9 and contact 13.91 monitored and if exceptional operating conditions are detected, the elevator control AS shuts off the elevator installation. in the As shown, the lifting device 12.1 works the scissor principle. It can be manual or motorized or be driven by cylinders and pressure medium. The Lifting device 12,1, for example, telescopically be constructed.

Die oben genannte Sicherheitseinrichtung 13 kann anstatt gegengewichtsseitig kabinenseitig im Schachtkopf 4 angeordnet werden.The above-mentioned safety device 13 can instead on the counterweight side of the cab in the shaft head 4 to be ordered.

Claims (6)

  1. Lift system with equipment for carrying out work in a lift shaft (1) with a shortened shaft head (4), in which lift shaft (1) a counterweight (3) and a lift cage (2) with a roof as maintenance platform (10) are movable, from which maintenance operations can be carried out on shaft equipment, wherein a safety device (13) which is arranged in a lift shaft (1), is provided for the maintenance work and ensures a prescribed spacing (Ü) between cage roof (2.1) and shaft ceiling (1.2) for the safety of maintenance personnel (11) and secures the lift cage (2) against any further upward movement, characterised in that the travel path of the lift cage (2) and/or the counterweight (2) can be limited by means of a rest (13.1) which is adjustable in height and introducible into the travel path.
  2. Lift system according to claim 1, characterised in that the rest (13.1) is adjustable in height by a motor and the position of the rest (13.1) can be monitored.
  3. Lift system according to claim 2, characterised in that a motor (13.3) with spindle (13.2) is provided for height adjustment of the rest (13.1) and limit switches (13.5, 13.7) are provided for monitoring the position.
  4. Lift system according to claim 1, characterised in that the rest (13.1) is adjustable in height manually along a support (13.11) and limit switches (13.7) are provided for monitoring the position.
  5. Lift system according to claim 1, characterised in that a buffer device (12, 12.1) adjustable in height is provided as rest (13.1).
  6. Lift system according to claim 5, characterised in that a buffer (12), which is adjustable in height by means of a lifting device (12.1) and which limits the travel path, is provided.
EP00109499A 1999-05-14 2000-05-04 Device for carrying out work in an elevator shaft Expired - Lifetime EP1052212B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00109499A EP1052212B1 (en) 1999-05-14 2000-05-04 Device for carrying out work in an elevator shaft

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP99810429 1999-05-14
EP99810429 1999-05-14
EP00109499A EP1052212B1 (en) 1999-05-14 2000-05-04 Device for carrying out work in an elevator shaft

Publications (2)

Publication Number Publication Date
EP1052212A1 EP1052212A1 (en) 2000-11-15
EP1052212B1 true EP1052212B1 (en) 2005-01-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP00109499A Expired - Lifetime EP1052212B1 (en) 1999-05-14 2000-05-04 Device for carrying out work in an elevator shaft

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EP (1) EP1052212B1 (en)
AT (1) ATE286482T1 (en)
DE (1) DE50009150D1 (en)
ES (1) ES2234474T3 (en)
NO (1) NO323028B1 (en)
PT (1) PT1052212E (en)

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WO2002024565A1 (en) 2000-09-20 2002-03-28 Mitsubishi Denki Kabushiki Kaisha Elevator system and method of inspecting the elevator system
DE10065099A1 (en) * 2000-12-28 2002-07-18 Logos Innovationen Gmbh Arrangement for producing protective space has supporting element with securing position and non-securing position, in both of which positions it is essentially parallel to direction of travel
ATE418520T1 (en) * 2001-03-01 2009-01-15 Thyssenkrupp Aufzugswerke Gmbh EMERGENCY LIMIT SWITCH FOR ELEVATOR
DE10137107B4 (en) * 2001-07-30 2009-02-12 Wittur Ag Machine roomless elevator with maintenance system
NZ532767A (en) 2003-05-21 2004-12-24 Inventio Ag Lift installation with a buffer for creating a zone of protection in a lift installation and a method of creating a zone of protection
EP1479636A1 (en) * 2003-05-21 2004-11-24 Inventio Ag Buffer that can create a safety inspection zone for elevators
JP4712313B2 (en) * 2003-05-21 2011-06-29 インベンテイオ・アクテイエンゲゼルシヤフト Buffer and elevator equipment with buffer
JP2005178997A (en) * 2003-12-19 2005-07-07 Otis Elevator Co Cage fall preventing device
JP4895500B2 (en) 2004-01-07 2012-03-14 インベンテイオ・アクテイエンゲゼルシヤフト Elevator equipment drive device and method for replacing elevator equipment drive device
JP5214098B2 (en) 2004-07-17 2013-06-19 インベンテイオ・アクテイエンゲゼルシヤフト Device for suspension of cages or counterweights in an elevator installation, and method for installation and maintenance of suspension means
DE102005060839A1 (en) * 2005-12-20 2007-06-28 Aufzugswerke M. Schmitt & Sohn Gmbh & Co. Pulley cord for a lift cabin, has a cabin guide rail portable elevator cabin and portable counter weight to limit the upward movement of the elevator cabin
FI125118B (en) 2013-01-07 2015-06-15 Kone Corp Elevator
EP3704049B1 (en) 2017-10-31 2021-08-25 Inventio AG Device for performing maintenance work in a lift shaft
CN109573768B (en) * 2018-12-13 2023-06-16 永大电梯设备（中国）有限公司 Elevator maintenance protection device and elevator maintenance protection method
EP3760561B1 (en) * 2019-07-05 2022-05-11 Otis Elevator Company Elevator assembly with counterweight blocking stop

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JP2626398B2 (en) * 1992-01-28 1997-07-02 三菱電機株式会社 Elevator equipment
CA2166841C (en) * 1995-01-31 2006-08-22 Heinrich Foelix Temporary working space protection
JPH0958942A (en) * 1995-08-22 1997-03-04 Mitsubishi Denki Bill Techno Service Kk Space keeping device of elevator

Also Published As

Publication number Publication date
EP1052212A1 (en) 2000-11-15
ES2234474T3 (en) 2005-07-01
NO20002195L (en) 2000-11-15
ATE286482T1 (en) 2005-01-15
NO323028B1 (en) 2006-12-27
PT1052212E (en) 2005-04-29
DE50009150D1 (en) 2005-02-10
NO20002195D0 (en) 2000-04-27

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