EP2091855B1 - Elevator car with maintenance window - Google Patents

Elevator car with maintenance window Download PDF

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Publication number
EP2091855B1
EP2091855B1 EP07816276.5A EP07816276A EP2091855B1 EP 2091855 B1 EP2091855 B1 EP 2091855B1 EP 07816276 A EP07816276 A EP 07816276A EP 2091855 B1 EP2091855 B1 EP 2091855B1
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EP
European Patent Office
Prior art keywords
car
side wall
wall part
elevator
elevator car
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.)
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Application number
EP07816276.5A
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German (de)
French (fr)
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EP2091855A1 (en
Inventor
Markus Henseler
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Inventio AG
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Inventio AG
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Publication of EP2091855A1 publication Critical patent/EP2091855A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02—Cages, i.e. cars
    • B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
    • B66B11/0246—Maintenance features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02—Cages, i.e. cars
    • 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
    • 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
    • B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
    • 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
    • B66B5/0006—Monitoring devices or performance analysers
    • B66B5/0018—Devices monitoring the operating condition of the elevator system
    • B66B5/0025—Devices monitoring the operating condition of the elevator system for maintenance or repair
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49718—Repairing
    • Y10T29/49721—Repairing with disassembling

Definitions

  • This invention relates to an elevator car with a special maintenance window.
  • the lifts must be checked and maintained regularly. Essentially, the following elements must be checked and maintained: The rail fastenings, the support cables, the support cable fastenings, the grooves of the drive pulleys or the drive tube of a traction drive, the pulleys, the limit switches, the safety brake cable and its fastening, and the guides of the chassis or the Cabin as well as the counterweight.
  • This work is conventionally carried out on most lifts with the lift fitter standing on the roof of the lift cabin. This roof must be built according to regulations and have a parapet.
  • the elevator car For checking and maintenance, the elevator car is moved slowly or in slow stages over the entire route so that the elevator fitter sees all the necessary elements by checking with his eyes and has access with his hands to all elements on which he has to carry out maintenance work, such as tightening screws, Lubricate rotating parts, check mechanical tension, test the function of limit switches, etc.
  • maintenance work such as tightening screws, Lubricate rotating parts, check mechanical tension, test the function of limit switches, etc.
  • the lift fitter can then climb onto this platform, either via a ladder from the lift cabin or from Floor through the open elevator car. In another embodiment, he can reach the car roof from the next higher floor and from there climb down to this platform with a ladder.
  • the cabin walls are equipped with windows, the window sashes of which can be swung open towards the cabin interior, or sliding windows are provided so that access to the lift shaft is released on the side of this window.
  • windows Such a solution comes from the WO01 / 79104 , from the JP 10-231074 or the EP 1 031 528 B1 emerged.
  • There an access opening is disclosed which is provided on that side wall of the car which faces the conveyor of the lift, so that the conveyor is accessible for maintenance through this access opening from inside the car.
  • the solutions presented there not all maintenance work can be carried out from inside the cabin.
  • the drive unit is included WO01 / 79104 and also at JP 10-231074 above the cabin, the guide rails for the cabin itself are included EP 1 031 528 B1 outside the area accessible from the cabin, namely on those side surfaces of the cabin that cannot be opened.
  • the attachment and the condition of these guide rails can therefore not be checked from the cabin.
  • the cable guides and their fastenings are also designed in such a way that they cannot be checked from the cabin.
  • the object of the present invention is to create a car with a maintenance window which is suitable for lifts, all of the elements to be serviced and checked are located on a single side outside the lift car and are therefore accessible through an open car side wall. In this case, however, regulations must also be met. This is because the distance from the parapet, up to which the fitter can stand, to the ropes or other moving parts of the conveyor device must be be at least 10 cm.
  • a lift cabin with a maintenance window for a lift in which all the elements to be serviced and tested are arranged opposite a single side of the lift car and which is characterized by the fact that on this side a part that is more than 85 cm above the car floor of the car wall is removable towards the inside of the car, this part is at least 95cm high and, after being removed from the cabin floor, can be leaned against this cabin wall to form a parapet, with at least one spacer between this removable part and the lower part of the cabin wall, so that the distance from the interior of the cabin facing side of the side wall part placed on the floor up to the elements of the elevator drive moving relative to the moving elevator car is at least 10cm.
  • FIG. 1 a view into the open elevator cabin is granted, seen from the access door.
  • the side walls are formed by panels 3, 6, 15, which are held, for example, by lateral guide strips 14, which in turn are connected to the frame of the elevator car by plug-in or screw connections.
  • a fuse strip 16 can, for example, be arranged running horizontally along the top of the car roof. This is equipped with a locking mechanism that can be opened with a triangular or square key by inserting it into hole 17 and then turning it.
  • a second lift door 18 made of two door parts that can be horizontally displaced outward is arranged here.
  • the left side wall is divided into an upper side wall part 3 and a lower side wall part 6.
  • a cross brace 19 which carries a handrail 5, here in the form of a chrome steel tube, which is a few centimeters away from the side wall.
  • a bar that can be grasped from behind can also be provided.
  • the upper side wall part 3 here can be removed from the lift cabin side in just a few simple steps.
  • the fuse strip 16 is first removed, by releasing the locking mechanism with a key.
  • the lateral retaining strips 14 can be removed. These are, for example, inserted into profile strips at the bottom and connected to the frame of the lift cabin at the top by a plug-in or screw connection.
  • the side wall part 3 which is preferably 100 cm high, is placed on the floor 1 of the cabin and leaned against the handrail 5, it forms with its upper edge 4 a parapet in accordance with the regulations for the lift fitter who can now access the elements through the open maintenance window the lift drive can carry out its work. So that the lift cabin can be driven with the maintenance window open during this work and even more so for the purpose of performing this work, it must always be ensured that there is a prescribed distance between the parapet and the closest parts moving relative to the lift cabin of at least 10 cm.
  • the dismantled side wall part 3 and placing it in front of the lower side wall part 6 and leaning against the handrail 5 the same acts as a spacer.
  • the lift drives are designed as narrow as possible in order to save space in the lift shaft.
  • the carrying and drive cables 7 and the guide rails 8 for the elevator car and the counterweight By placing the removed side wall part 3 inwards into the cabin interior, this required distance of 10 cm can easily be maintained, as can be seen in the figure.
  • this parked side wall part 3 is now secured against falling over and at the same time it is achieved that the elevator car can be driven again. That is based on the Figure 3 explains where you can see the upper side wall part 3 shown on the elevator car floor in front of the lower side wall part 6, seen from the side.
  • a cable holder 9 is mounted on the outside of the elevator car, and a two-pole cable 11 leads from this cable holder 9 to an end connector 12.
  • this connector 12 can be plugged into a socket 13 on the back of the removable upper side wall part 3 is mounted.
  • the two poles of the plug 12 are electrically connected to one another. As soon as the plug 12 is plugged into the socket 13, a circuit is closed so that the elevator car can be moved.
  • This plug connection secures the removable side wall part 3 from falling over in the elevator car, and on the other hand it closes a circuit so that the elevator car can be moved.
  • the elevator car can only be moved if the dismantled side wall part 3 is correctly parked in front of the lower side wall part 6 and thus, firstly, a parapet 4 is formed with the required minimum distance from the moving parts, such as the ropes 7 passing by, and secondly, the circuit for driving the lift cabin is closed.
  • this contact can only be closed with the side wall part 3 correctly positioned, because only then can the piercer 12 be inserted into the socket 13 and the circuit closed.
  • a bracket which is mounted on the back of the side wall part 3 can also serve.
  • This solution is used for lifts that do not have a handrail for reasons of space. she is in Figure 4 shown.
  • a bracket 19 is pivotably mounted on a holder 21 which is mounted on the rear side of the side wall part 3. In the swiveled-away position it simply hangs on the pivot bearing and is only slightly exposed to the rear on the rear side of the side wall part 3.
  • the lift fitter can pivot the bracket 19 upwards and put its end profile 20 over the upper edge of the lower side wall part 6. This also ensures compliance with the required distance of at least 10 cm from the moving parts, as shown, and the side wall part 3 cannot fall over. Then the next thing to do is complete the circuit, as it was before Figure 3 described.
  • the removable side wall part 3 can be a mirror glass which can be inserted into a profile strip 22 on the upper edge of the stationary side wall part 6 and can be secured to the cabin wall by means of the lateral retaining strips 14.
  • a transparent pane made of laminated glass can be used, or a panel made of wood, plastic or metal or a combination of these materials.
  • the Figure 5 shows the elevator car in its uppermost position in the elevator shaft, in a section seen from the side. It can be seen that in this uppermost position of the elevator car, the elevator motor 26 lies laterally next to the elevator car, or that the elevator car can be moved as far as next to the elevator motor 26.
  • the suspension and pulling cables 7 run in two levels, one level being very close to the elevator car.
  • the maintenance window is open.
  • the upper side wall part 3 is placed correspondingly in front of the lower side wall part 6 on the cabin floor 1, specifically at a certain distance. This is defined by the spacers described above, either by a stationary handrail 5, or by at least one spacer bracket 19, which can be pivoted or opened if required on the rear of the removable side wall part 3.
  • a parapet 4 is formed from this removable side wall part 3. A distance of at least 10 cm must be maintained from the inside of the parapet 4 to the first rope 7, which can be easily achieved with this arrangement.
  • FIG. 7 a view of the elevator car with the elevator motor 26 accessible through the open maintenance window.
  • This here consists of a traction drive with an external rotor tube which serves as a driving tube and over which the ropes 7 run, which are not shown here, however.
  • this traction drive is suspended from a bridge 25 which rests on the inner guide rails 23 for the counterweight via fastening brackets 27, while these brackets 27 are fastened to the outer guide rails 24 for the elevator car.
  • the maintenance window is open except for the lower, for example 90 cm high, side wall part 6. It extends practically over the entire width of the elevator car.
  • the removable side wall part 3 is now placed in front of this maintenance window so that its upper edge 4 projects over the lower side wall part 6 by 10 cm and forms a parapet 4.
  • the figure shows the rails 23 for guiding the counterweight, and the rails 24 for guiding the elevator car, arranged outside the motor, run parallel thereto.
  • this special lift drive is not the subject of this invention, but merely background information.
  • the elevator car with this maintenance window can also be implemented for other drive constructions.
  • This lift cabin with maintenance window makes it possible for the first time to maintain and control a lift exclusively from the lift cabin.
  • the prerequisite is, of course, that all drive-related elements are housed on a single side of the elevator car.
  • the elevator car has an L-shaped chassis, and the rails for guiding the elevator car and those for the counterweight run behind the standing leg of the L.
  • the lift motor in whatever form, is arranged behind the standing leg of the L, as are all pulleys, all fastening elements for the ropes and rails, and also all limit switches. This means that all of these elements can be seen through the maintenance window and are accessible from the cabin. Maintenance is carried out exclusively from the lift cabin and is therefore much more convenient and cleaner for the lift fitter and also quicker and safer to carry out.

Description

Diese Erfindung betrifft eine Liftkabine mit einem besonderen Wartungsfenster. Die Lifte müssen regelmässig kontrolliert und gewartet werden. Dabei müssen im Wesentlichen folgende Elemente geprüft und gewartet werden: Die Schienenbefestigungen, die Tragseile, die Tragseilbefestigungen, die Rillen der Treibscheiben oder des Treibrohres eines Traktionsantriebes, die Umlenkrollen, die Endschalter, das Fangbremsseil und seine Befestigung, und die Führungen des Fahrwerks bzw. der Kabine sowie des Gegengewichtes. Diese Arbeiten werden herkömmlich bei den meisten Liften durchgeführt, indem der Liftmonteur auf dem Dach der Liftkabine steht. Dieses Dach muss nach Vorschrift gebaut sein und mit einer Brüstung versehen sein. Zum Kontrollieren und Warten wird die Liftkabine langsam oder in langsamen Etappen über den ganzen Fahrweg verfahren, sodass der Liftmonteur durch Überprüfen von Auge alle nötigen Elemente sieht und mit seinen Händen Zugang zu allen Elementen hat, an denen er Wartungsarbeiten durchführen muss, etwa Schrauben nachziehen, drehende Teile schmieren, mechanische Spannungen überprüfen, die Funktion von Endschaltern testen etc. Als weitere Wartungsmöglichkeit ist es bei einigen Liften möglich, das Kabinendach oder eine Dachluke im Kabinendach in die Kabine hinunterzuschwenken, wonach ein Arbeitspodest aus dem dann lotrecht hängenden Kabinendach abgeklappt werden kann. Der Liftmonteur kann dann auf dieses Podest steigen, entweder über eine Leiter von der Liftkabine aus oder vom Stockwerkboden durch die offene Liftkabine. In einer anderen Ausführung kann er vom nächsthöheren Stockwerkboden aus auf das Kabinendach gelangen und von dort aufs mit einer Leiter auf dieses Podest hinuntersteigen. Wenn der Liftmonteur auf diesem Arbeitspodest steht, so ragt er genügend weit oben aus der Liftkabine heraus, dass er die nötigen Arbeiten im Liftschacht durchführen kann. In noch weiteren Ausführungen sind die Kabinenwände mit Fenstern ausgerüstet, deren Fensterflügel gegen das Kabineninnere hin aufgeschwenkt werden können, oder es sind Schiebefenster vorgesehen, sodass der Zugang zum Liftschacht auf der Seite dieses Fensters freigegeben ist. Eine solche Lösung geht etwa aus der WO01/79104 , aus der JP 10-231074 oder der EP 1 031 528 B1 hervor. Dort ist eine Zugangsöffnung offenbart, welche an jener Seitenwand der Fahrzelle vorgesehen ist, welche der Fördervorrichtung des Liftes zugewandt ist, sodass die Fördereinrichtung für die Wartung durch diese Zugangsöffnung vom Innern der Fahrzelle aus zugänglich ist. Allerdings sind bei den dort vorgestellten Lösungen durchwegs nicht sämtliche Wartungsarbeiten aus dem Kabineninnem heraus durchführbar. Die Antriebseinheit liegt bei WO01/79104 und auch bei JP 10-231074 oberhalb der Kabine, die Führungsschienen für die Kabine selbst liegen bei EP 1 031 528 B1 ausserhalb des von der Kabine aus zugänglichen Bereichs, nämlich auf solchen Seitenflächen der Kabine, die nicht öffnenbar sind. Die Befestigung und der Zustand dieser Führungsschienen sind deshalb nicht von der Kabine aus überprüfbar. Oftmals sind auch die Seilführungen und ihre Befestigungen so angelegt, dass sie nicht von der Kabine aus überprüfbar sind.This invention relates to an elevator car with a special maintenance window. The lifts must be checked and maintained regularly. Essentially, the following elements must be checked and maintained: The rail fastenings, the support cables, the support cable fastenings, the grooves of the drive pulleys or the drive tube of a traction drive, the pulleys, the limit switches, the safety brake cable and its fastening, and the guides of the chassis or the Cabin as well as the counterweight. This work is conventionally carried out on most lifts with the lift fitter standing on the roof of the lift cabin. This roof must be built according to regulations and have a parapet. For checking and maintenance, the elevator car is moved slowly or in slow stages over the entire route so that the elevator fitter sees all the necessary elements by checking with his eyes and has access with his hands to all elements on which he has to carry out maintenance work, such as tightening screws, Lubricate rotating parts, check mechanical tension, test the function of limit switches, etc. As a further maintenance option, with some lifts it is possible to swing the cabin roof or a roof hatch in the cabin roof down into the cabin, after which a work platform can be folded down from the vertical cabin roof. The lift fitter can then climb onto this platform, either via a ladder from the lift cabin or from Floor through the open elevator car. In another embodiment, he can reach the car roof from the next higher floor and from there climb down to this platform with a ladder. When the lift fitter stands on this work platform, he protrudes sufficiently high from the lift cabin that he can carry out the necessary work in the lift shaft. In still further versions, the cabin walls are equipped with windows, the window sashes of which can be swung open towards the cabin interior, or sliding windows are provided so that access to the lift shaft is released on the side of this window. Such a solution comes from the WO01 / 79104 , from the JP 10-231074 or the EP 1 031 528 B1 emerged. There an access opening is disclosed which is provided on that side wall of the car which faces the conveyor of the lift, so that the conveyor is accessible for maintenance through this access opening from inside the car. However, with the solutions presented there, not all maintenance work can be carried out from inside the cabin. The drive unit is included WO01 / 79104 and also at JP 10-231074 above the cabin, the guide rails for the cabin itself are included EP 1 031 528 B1 outside the area accessible from the cabin, namely on those side surfaces of the cabin that cannot be opened. The attachment and the condition of these guide rails can therefore not be checked from the cabin. Often the cable guides and their fastenings are also designed in such a way that they cannot be checked from the cabin.

Aus US 2003/015378 ist weiterhin eine Kabine mit einem gegen das Kabineninnere zur Seite hin oder nach oben hin aufschwenkbaren Inspektionsfenster bekannt geworden.the end US 2003/015378 a cabin with an inspection window that can be swung open to the side or upwards towards the cabin interior has also become known.

Die Aufgabe der vorliegenden Erfindung ist es, eine Kabine mit Wartungsfenster zu schaffen, welche geeignet ist für Lifte, deren sämtliche zu wartende und zu prüfende Elemente sich auf einer einzigen Seite ausserhalb der Liftkabine befinden und somit durch eine geöffnete Kabinen-Seitenwand zugänglich sind. In diesem Fall aber sind auch Vorschriften zu erfüllen. So muss nämlich der Abstand von der Brüstung, bis zu welcher hin der Monteur stehen kann, bis zu den Seilen oder anderen beweglichen Teilen der Fördervorrichtung mindestens 10 cm betragen.The object of the present invention is to create a car with a maintenance window which is suitable for lifts, all of the elements to be serviced and checked are located on a single side outside the lift car and are therefore accessible through an open car side wall. In this case, however, regulations must also be met. This is because the distance from the parapet, up to which the fitter can stand, to the ropes or other moving parts of the conveyor device must be be at least 10 cm.

Diese Aufgabe wird gelöst von einer Liftkabine mit Wartungsfenster für einen Lift, bei dem sämtliche zu wartende und zu prüfende Elemente gegenüber einer einzigen Seite der Liftkabine angeordnet sind, und die sich dadurch auszeichnet, dass auf dieser Seite ein mehr als 85cm über dem Kabinenboden der Kabinenwand angeordnetes Teil nach dem Kabineninnern hin wegnehmbar ausgeführt ist, wobei dieses Teil wenigstens 95cm hoch ist und nach Entfernung auf dem Kabinenboden stehend zur Bildung einer Brüstung an diese Kabinenwand anlehnbar ist, wobei mindestens ein Distanzhalter zwischen diesem wegnehmbaren Teil und dem unteren Teil der Kabinenwand vorhanden ist, sodass die Distanz von der Inneren, der Kabine zugewandten Seite des am Boden abgestellten Seitenwandteils bis zu den relativ zur fahrenden Liftkabine bewegenden Elementen des Liftantriebs mindestens 10cm beträgt.This task is solved by a lift cabin with a maintenance window for a lift in which all the elements to be serviced and tested are arranged opposite a single side of the lift car and which is characterized by the fact that on this side a part that is more than 85 cm above the car floor of the car wall is removable towards the inside of the car, this part is at least 95cm high and, after being removed from the cabin floor, can be leaned against this cabin wall to form a parapet, with at least one spacer between this removable part and the lower part of the cabin wall, so that the distance from the interior of the cabin facing side of the side wall part placed on the floor up to the elements of the elevator drive moving relative to the moving elevator car is at least 10cm.

In den Zeichnungen wir diese Liftkabine dargestellt und ihr Wartungsfenster wird anhand dieser Zeichnungen beschrieben und seine Funktion wird erläutert.This elevator car is shown in the drawings and its maintenance window is described on the basis of these drawings and its function is explained.

Es zeigt:

Figur 1:
Einen Blick in die geöffnete Liftkabine, von einer Zutrittstüre aus gesehen, im Betriebszustand des Liftes;
Figur 2:
Einen Blick in die geöffnete Liftkabine, von einer Zutrittstüre aus gesehen, bei demontiertem oberen Teil der linken Seitenwand der Liftkabine, und mit demselben auf dem Kabinenboden abgestellt und an der Seitenwand angelehnt;
Figur 3:
Eine schematische Darstellung der Liftkabinenwand, der gebildeten Brüstung sowie der Sicherheitseinrichtung für das Verfahren der Liftkabine bei geöffnetem Wartungsfenster;
Figur 4:
Eine schematische Darstellung der Liftkabinenwand, der gebildeten Brüstung sowie der Sicherheitseinrichtung für das Verfahren der Liftkabine bei geöffnetem Wartungsfenster;
Figur 5:
Einen Längsschnitt durch die Liftkabine von der Seite her gesehen in der obersten Stellung im Liftschacht, mit geschlossenem Wartungsfenster;
Figur 6:
Einen Längsschnitt durch die Liftkabine von der Seite her gesehen in der obersten Stellung im Liftschacht, mit geöffnetem Wartungsfenster und erstellter Brüstung;
Figur 7:
Eine Ansicht der Liftkabine mit durch das geöffnete Wartungsfenster zugänglichem Liftmotor und Führungsschienen;
Figur 8:
Eine Ansicht des Lichtschachtes mit dem Liftmotor und den Führungsschienen, wenn die Liftkabine weiter unten hängt.
It shows:
Figure 1:
A look into the open elevator cabin, seen from an access door, when the elevator is in operation;
Figure 2:
A look into the open elevator car, seen from an access door, with the upper part of the left side wall of the elevator car dismantled, and with the same placed on the car floor and leaning against the side wall;
Figure 3:
A schematic representation of the elevator car wall, the parapet formed and the safety device for moving the elevator car with the maintenance window open;
Figure 4:
A schematic representation of the elevator car wall, the parapet formed and the safety device for moving the elevator car with the maintenance window open;
Figure 5:
A longitudinal section through the elevator car viewed from the side in the uppermost position in the elevator shaft, with the maintenance window closed;
Figure 6:
A longitudinal section through the elevator car viewed from the side in the uppermost position in the elevator shaft, with the maintenance window open and the parapet created;
Figure 7:
A view of the lift cabin with the lift motor and guide rails accessible through the open maintenance window;
Figure 8:
A view of the light shaft with the lift motor and the guide rails when the lift cabin is hanging below.

In Figur 1 ist ein Blick in die geöffnete Liftkabine gewährt, von der Zutrittstüre aus gesehen. Hier ist die Liftkabine in betriebsbereitem Zustand gezeigt. Die Seitenwände sind durch Panelen 3,6,15 gebildet, welche zum Beispiel von seitlichen Führungsleisten 14 gehalten sind, die ihrerseits durch Steck- oder Schraubverbindungen mit dem Rahmen der Liftkabine verbunden sind. Eine Sicherungsleiste 16 kann zum Beispiel oben längs des Kabinendaches horizontal verlaufend angeordnet sein. Diese ist mit einem Schliessmechanismus ausgerüstet, welcher mit einem Drei- oder Vierkantschlüssel geöffnet werden kann, indem dieser beim Loch 17 eingesteckt und dann gedreht wird. Auf der hinteren Kabinenseite ist hier eine zweite Lifttüre 18 aus zwei horizontal nach aussen verschiebbaren Türenteilen angeordnet. Wie man erkennt, ist die Seitenwand links unterteilt in einen oberen Seitenwandteil 3 und einen unteren Seitenwandteil 6. Zwischen diesen Teilen ist eine Querstrebe 19 angeordnet, welche einen Handlauf 5 trägt, hier in Form eines Chromstahlrohres, das einige Zentimeter von der Seitenwand beabstandet ist. Anstelle eines Rohres kann auch eine Leiste vorgesehen werden, die hintergreifbar ist. Das hier obere Seitenwandteil 3 ist als Besonderheit mit wenigen Handgriffen von der Liftkabinenseite entfernbar. Hierzu wird zunächst die Sicherungsleiste 16 entfernt, indem der Schliessmechanismus mittels eines Schlüssels gelöst wird. Nach Entfernen der Sicherungsleiste 16 können die seitlichen Halteleisten 14 entfernt werden. Diese sind zum Beispiel unten in Profilleisten gesteckt und oben durch eine Steck- oder Schraubverbindung mit dem Rahmen der Liftkabine verbunden. Nach Entfernen dieser Halteleisten 14 können diese für eine Zwischenlagerung zum Beispiel an der gegenüberliegenden Kabinenwand angelehnt werden. Nun aber sind die seitlichen Ränder des oberen Seitenwandteils 3 freigelegt. Dieses Seitenwandteil 3 kann nun mit den Händen an den seitlichen Rändern ergriffen werden und aus seinem unteren Halteprofil, welches längs des oberen Randes des unteren Seitenwandteils 6 verläuft, herausgehoben werden und hernach auf dem Kabinenboden 1 abgestellt werden.In Figure 1 a view into the open elevator cabin is granted, seen from the access door. Here the lift cabin is shown in an operational state. The side walls are formed by panels 3, 6, 15, which are held, for example, by lateral guide strips 14, which in turn are connected to the frame of the elevator car by plug-in or screw connections. A fuse strip 16 can, for example, be arranged running horizontally along the top of the car roof. This is equipped with a locking mechanism that can be opened with a triangular or square key by inserting it into hole 17 and then turning it. On the rear side of the cabin, a second lift door 18 made of two door parts that can be horizontally displaced outward is arranged here. As can be seen, the left side wall is divided into an upper side wall part 3 and a lower side wall part 6. Between these parts there is a cross brace 19 which carries a handrail 5, here in the form of a chrome steel tube, which is a few centimeters away from the side wall. Instead of a tube, a bar that can be grasped from behind can also be provided. As a special feature, the upper side wall part 3 here can be removed from the lift cabin side in just a few simple steps. For this purpose, the fuse strip 16 is first removed, by releasing the locking mechanism with a key. After removing the fuse strip 16, the lateral retaining strips 14 can be removed. These are, for example, inserted into profile strips at the bottom and connected to the frame of the lift cabin at the top by a plug-in or screw connection. After removing these retaining strips 14, they can be leaned against the opposite cabin wall for temporary storage, for example. But now the lateral edges of the upper side wall part 3 are exposed. This side wall part 3 can now be gripped with the hands at the side edges and lifted out of its lower retaining profile, which runs along the upper edge of the lower side wall part 6, and then placed on the cabin floor 1.

Diese Situation ist in Figur 2 gezeigt. Das demontierte Seitenwandteil 3 ist hier auf dem Liftkabinenboden 1 abgestellt und ist an den Handlauf 5 angelehnt. Somit ist durch das oberhalb des abgestellten Seitenteils 3 geschaffene Wartungsfenster der Blick auf alle Elemente des Liftantriebes, die gewartet und kontrolliert werden müssen, freigegeben und diese Elemente sind auch manuell zugänglich. Das demontierte Seitenwandteil 3 schliesst in Montagelage einen hier nicht gezeigten Kontaktschalter, der aussen an der Liftkabine montiert ist. Sobald das Seitenwandteil 3 entfernt ist, kann die Liftkabine nicht mehr gefahren werden. Wenn das Seitenwandteil 3, das vorzugsweise 100cm hoch ist, auf dem Boden 1 der Kabine abgestellt und am Handlauf 5 angelehnt ist, so bildet es mit seinem oberen Rand 4 eine vorschriftsgemässe Brüstung für den Liftmonteur, der nun durch das geschaffene offene Wartungsfenster an den Elementen des Liftantriebes seine Arbeiten durchführen kann. Damit die Liftkabine während dieser Arbeiten und noch vielmehr zum Zweck der Durchführung dieser Arbeiten mit offenem Wartungsfenster fahrbar ist, muss stets sichergestellt sein, dass ein vorgeschriebener Abstand zwischen der Brüstung und den nächstliegenden sich relativ zur Liftkabine bewegenden Teilen von mindestens 10cm besteht. Durch das Abstellen des demontierten Seitenwandteils 3 und Abstellen desselben vor dem unteren Seitenwandteil 6 und Anlehnen an den Handlauf 5 wirkt derselbe als Distanzhalter. Die Liftantriebe werden ja möglichst schmal ausgeführt, um Platz im Liftschacht einzusparen. Entsprechend nah an der Liftkabine verlaufen die Trag- und Antriebsseile 7 sowie die Führungsschienen 8 für die Liftkabine und das Gegengewicht. Durch das nach innen in das Kabineninnere versetzte Abstellen des herausgenommenen Seitenwandteils 3 kann dieser geforderte Abstand von 10cm leicht eingehalten werden, wie in der Figur sichtbar.This situation is in Figure 2 shown. The dismantled side wall part 3 is placed here on the elevator car floor 1 and leans against the handrail 5. Thus, through the maintenance window created above the parked side part 3, the view of all elements of the lift drive that have to be serviced and checked is released and these elements are also accessible manually. In the assembly position, the dismantled side wall part 3 closes a contact switch, not shown here, which is mounted on the outside of the elevator car. As soon as the side wall part 3 is removed, the elevator car can no longer be driven. When the side wall part 3, which is preferably 100 cm high, is placed on the floor 1 of the cabin and leaned against the handrail 5, it forms with its upper edge 4 a parapet in accordance with the regulations for the lift fitter who can now access the elements through the open maintenance window the lift drive can carry out its work. So that the lift cabin can be driven with the maintenance window open during this work and even more so for the purpose of performing this work, it must always be ensured that there is a prescribed distance between the parapet and the closest parts moving relative to the lift cabin of at least 10 cm. By placing the dismantled side wall part 3 and placing it in front of the lower side wall part 6 and leaning against the handrail 5, the same acts as a spacer. The lift drives are designed as narrow as possible in order to save space in the lift shaft. The carrying and drive cables 7 and the guide rails 8 for the elevator car and the counterweight. By placing the removed side wall part 3 inwards into the cabin interior, this required distance of 10 cm can easily be maintained, as can be seen in the figure.

In einem zweiten Schritt wird nun dieses abgestellte Seitenwandteil 3 vor einem Umfallen gesichert und gleichzeitig wird damit erreicht, dass die Liftkabine wieder gefahren werden kann. Das wird anhand der Figur 3 erläutert, wo man das obere Seitenwandteil 3 auf dem Liftkabinenboden vor dem unteren Seitenwandteil 6 dargestellt sieht, und zwar von der Seite her gesehen. An der Aussenseite der Liftkabine ist ein Kabelhalter 9 montiert, und von diesem Kabelhalter 9 aus führt ein zweipoliges Kabel 11 zu einem endseitigen Stecker 12. Dieser Stecker 12 kann wie hier gezeigt an einer Buchse 13 eingesteckt werden, die auf der Rückseite des herausnehmbaren oberen Seitenwandteils 3 montiert ist. In der Buchse 13 werden die beiden Pole des Steckers 12 miteinander elektrisch verbunden. Sobald also der Stecker 12 in die Buchse 13 eingesteckt wird, wird ein Stromkreis geschlossen, sodass die Liftkabine fahrbar ist. Diese Steckverbindung sichert einerseits das herausnehmbare Seitenwandteil 3 vor einem Umfallen in der Liftkabine, und andrerseits schliesst sie einen Stromkreis, sodass die Liftkabine fahrbar ist. Somit ist die Liftkabine nur dann fahrbar, wenn das demontierte Seitenwandteil 3 korrekt vor dem unteren Seitenwandteil 6 abgestellt ist und somit erstens eine Brüstung 4 mit dem geforderten Minimalabstand zu den beweglichen Teilen, etwa den vorbeilaufenden Seilen 7 gebildet ist, und zweitens der Stromkreis zum Fahren der Liftkabine geschlossen ist. Dieser Kontakt aber lässt sich nur mit korrekt abgestelltem Seitenwandteil 3 schliessen, denn nur dann lässt sich der Stecher 12 in die Buchse 13 einstecken und der Stromkreis schliessen.In a second step, this parked side wall part 3 is now secured against falling over and at the same time it is achieved that the elevator car can be driven again. That is based on the Figure 3 explains where you can see the upper side wall part 3 shown on the elevator car floor in front of the lower side wall part 6, seen from the side. A cable holder 9 is mounted on the outside of the elevator car, and a two-pole cable 11 leads from this cable holder 9 to an end connector 12. As shown here, this connector 12 can be plugged into a socket 13 on the back of the removable upper side wall part 3 is mounted. In the socket 13, the two poles of the plug 12 are electrically connected to one another. As soon as the plug 12 is plugged into the socket 13, a circuit is closed so that the elevator car can be moved. This plug connection on the one hand secures the removable side wall part 3 from falling over in the elevator car, and on the other hand it closes a circuit so that the elevator car can be moved. Thus, the elevator car can only be moved if the dismantled side wall part 3 is correctly parked in front of the lower side wall part 6 and thus, firstly, a parapet 4 is formed with the required minimum distance from the moving parts, such as the ropes 7 passing by, and secondly, the circuit for driving the lift cabin is closed. However, this contact can only be closed with the side wall part 3 correctly positioned, because only then can the piercer 12 be inserted into the socket 13 and the circuit closed.

Anstelle eines Handlaufes 5, der hier als Distanzhalter für das abgestellte Seitenwandteil 3 dient, kann auch ein Bügel dienen, welcher auf der Rückseite des Seitenwandteils 3 montiert ist. Bei Liften, in denen aus Platzgründen kein Handlauf vorgesehen ist, wird diese Lösung angewendet. Sie ist in Figur 4 dargestellt. An einer Halterung 21, die an der Rückseite des Seitenwandteils 3 montiert ist, ist eine Bügel 19 schwenkbar gelagert. In der abgeschwenkten Lage hängt er einfach am Schwenklager und trägt nach hinten auf der Rückseite des Seitenwandteils 3 nur wenig auf. Nachdem das Seitenwandteil 3 nach Demontage auf den Kabinenboden 1 abgestellt wird, kann der Liftmonteur den Bügel 19 nach oben schwenken und mit seinem endseitigen Profil 20 über den oberen Rand des unteren Seitenwandteils 6 stülpen. Damit ist ebenfalls die Einhaltung des geforderten Abstandes von mindestens 10cm zu den beweglichen Teilen sichergestellt, wie eingezeichnet, und das Seitenwandteil 3 kann nicht umfallen. Dann wird als Nächstes noch der Stromkreis geschlossen, wie schon zu Figur 3 beschrieben.Instead of a handrail 5, which here serves as a spacer for the parked side wall part 3, a bracket which is mounted on the back of the side wall part 3 can also serve. This solution is used for lifts that do not have a handrail for reasons of space. she is in Figure 4 shown. A bracket 19 is pivotably mounted on a holder 21 which is mounted on the rear side of the side wall part 3. In the swiveled-away position it simply hangs on the pivot bearing and is only slightly exposed to the rear on the rear side of the side wall part 3. After the side wall part 3 is placed on the cabin floor 1 after dismantling, the lift fitter can pivot the bracket 19 upwards and put its end profile 20 over the upper edge of the lower side wall part 6. This also ensures compliance with the required distance of at least 10 cm from the moving parts, as shown, and the side wall part 3 cannot fall over. Then the next thing to do is complete the circuit, as it was before Figure 3 described.

Das wegnehmbare Seitenwandteil 3 kann ein Spiegelglas sein, welches in eine Profilleiste 22 am oberen Rand des stationären Seitenwandteils 6 einsteckbar ist und mittels der seitlichen Halteleisten 14 an der Kabinenwand sicherbar ist. Anstelle eines Spiegelglases kann ein durchsichtiges Scheibenglas aus Verbundglas eingesetzt werden, oder ein Panel aus Holz, Kunststoff oder Metall oder aus einer Kombination dieser Materialien.The removable side wall part 3 can be a mirror glass which can be inserted into a profile strip 22 on the upper edge of the stationary side wall part 6 and can be secured to the cabin wall by means of the lateral retaining strips 14. Instead of a mirror glass, a transparent pane made of laminated glass can be used, or a panel made of wood, plastic or metal or a combination of these materials.

Die Figur 5 zeigt die Liftkabine in ihrer obersten Position im Liftschacht, und zwar in einem Schnitt von der Seite her gesehen. Man sieht, dass in dieser obersten Position der Liftkabine der Liftmotor 26 seitlich neben der Liftkabine liegt, bzw. dass die Liftkabine bis neben den Liftmotor 26 verfahrbar ist. Die Trag- und Zugseile 7 laufen in zwei Ebenen, wobei die eine Ebene recht nahe bei der Liftkabine liegt. In Figur 6 ist das Wartungsfenster geöffnet. Das obere Seitenwandteil 3 ist entsprechend vor dem unteren Seitenwandteil 6 auf den Kabinenboden 1 abgestellt, und zwar in einem gewissen Abstand. Dieser wird durch die oben beschriebenen Distanzhalter definiert, entweder durch einen stationären Handlauf 5, oder aber durch mindestens einen Distanzbügel 19, der bei Bedarf auf der Rückseite des wegnehmbaren Seitenwandteils 3 schwenkbar oder aufklappbar sind. In der Figur 6 erkennt man wie von diesem wegnehmbaren Seitenwandteil 3 eine Brüstung 4 gebildet ist. Von der Innenseite der Brüstung 4 aus bis zum ersten Seil 7 müssen mindestens 10cm Abstand eingehalten werden, was mit dieser Anordnung mühelos erreicht werden kann.the Figure 5 shows the elevator car in its uppermost position in the elevator shaft, in a section seen from the side. It can be seen that in this uppermost position of the elevator car, the elevator motor 26 lies laterally next to the elevator car, or that the elevator car can be moved as far as next to the elevator motor 26. The suspension and pulling cables 7 run in two levels, one level being very close to the elevator car. In Figure 6 the maintenance window is open. The upper side wall part 3 is placed correspondingly in front of the lower side wall part 6 on the cabin floor 1, specifically at a certain distance. This is defined by the spacers described above, either by a stationary handrail 5, or by at least one spacer bracket 19, which can be pivoted or opened if required on the rear of the removable side wall part 3. In the Figure 6 one can see how a parapet 4 is formed from this removable side wall part 3. A distance of at least 10 cm must be maintained from the inside of the parapet 4 to the first rope 7, which can be easily achieved with this arrangement.

Schliesslich zeigt die Figur 7 eine Ansicht der Liftkabine mit durch das geöffnete Wartungsfenster zugänglichem Liftmotor 26. Dieser besteht hier aus einem Traktionsantrieb mit einem Aussenläuferrohr, welches als Treibrohr dient, und über welches die Seile 7 laufen, die hier allerdings nicht eingezeichnet sind. Als Besonderheit ist dieser Traktionsantrieb an einer Brücke 25 aufgehängt, die über Befestigungsbügel 27 auf den inneren Führungsschienen 23 für das Gegengewicht aufliegt, während diese Bügel 27 an den äusseren Führungsschienen 24 für die Liftkabine befestigt sind. Das Wartungsfenster ist bis auf das untere, zum Beispiel 90cm hohe Seitenwandteil 6 offen. Es erstreckt sich praktisch über die ganze Breite der Liftkabine. Vor dieses Wartungfenster wird jetzt das abnehmbare Seitenwandteil 3 gestellt, sodass dessen oberer Rand 4 das untere Seitenwandteil 6 um 10cm überragt und eine Brüstung 4 bildet. In der Figur erkennt man die Schienen 23 für die Führung des Gegengewichtes, und ausserhalb des Motors angeordnet verlaufen parallel dazu die Schienen 24 für die Führung der Liftkabine. Dieser spezielle Liftantrieb ist jedoch nicht Gegenstand dieser Erfindung, sondern bloss eine Hintergrundinformation. Die Liftkabine mit diesem Wartungsfenster kann auch für andere Antriebskonstruktionen realisiert werden.Finally shows the Figure 7 a view of the elevator car with the elevator motor 26 accessible through the open maintenance window. This here consists of a traction drive with an external rotor tube which serves as a driving tube and over which the ropes 7 run, which are not shown here, however. As a special feature, this traction drive is suspended from a bridge 25 which rests on the inner guide rails 23 for the counterweight via fastening brackets 27, while these brackets 27 are fastened to the outer guide rails 24 for the elevator car. The maintenance window is open except for the lower, for example 90 cm high, side wall part 6. It extends practically over the entire width of the elevator car. The removable side wall part 3 is now placed in front of this maintenance window so that its upper edge 4 projects over the lower side wall part 6 by 10 cm and forms a parapet 4. The figure shows the rails 23 for guiding the counterweight, and the rails 24 for guiding the elevator car, arranged outside the motor, run parallel thereto. However, this special lift drive is not the subject of this invention, but merely background information. The elevator car with this maintenance window can also be implemented for other drive constructions.

Diese Liftkabine mit Wartungsfenster ermöglicht es erstmals, einen Lift ausschliesslich von der Liftkabine aus zu warten und zu kontrollieren. Voraussetzung ist freilich, dass alle antriebsrelevanten Elemente auf einer einzigen Seite der Liftkabine untergebracht sind. Die Liftkabine hat hierzu ein L-förmiges Chassis, und die Schienen für die Führung der Liftkabine wie auch jene für das Gegengewicht verlaufen hinter dem stehenden Schenkel des L's. Ebenfalls der Liftmotor, in welcher Form auch immer ausgeführt, ist hinter dem stehenden Schenkel des L's angeordnet, wie auch alle Umlenkrollen, alle Befestigungselemente für die Seile und Schienen, und auch alle Endschalter. Damit sind alle diese Elemente durch das Wartungsfenster einsehbar und von der Kabine aus zugänglich. Die Wartung erfolgt ausschliesslich aus der Liftkabine heraus und ist deshalb für den Liftmonteur sehr viel komfortabler und sauberer und ausserdem erst noch rascher und sicherer durchzuführen.This lift cabin with maintenance window makes it possible for the first time to maintain and control a lift exclusively from the lift cabin. The prerequisite is, of course, that all drive-related elements are housed on a single side of the elevator car. For this purpose, the elevator car has an L-shaped chassis, and the rails for guiding the elevator car and those for the counterweight run behind the standing leg of the L. The lift motor, in whatever form, is arranged behind the standing leg of the L, as are all pulleys, all fastening elements for the ropes and rails, and also all limit switches. This means that all of these elements can be seen through the maintenance window and are accessible from the cabin. Maintenance is carried out exclusively from the lift cabin and is therefore much more convenient and cleaner for the lift fitter and also quicker and safer to carry out.

Claims (7)

  1. Elevator car comprising a servicing window for an elevator, in which all elements to be serviced and to be tested are arranged on the outside opposite a single side of the elevator car, characterized in that, on this side, a part (3) that is arranged more than 85 cm above the car floor (1) of the car wall (2) is designed to be removable from inside the car, said part (3) being at least 95 cm high and, after being removed, being able to lean against said car wall (2) while resting on the car floor (1) in order to form a balustrade (4), at least one spacer (5, 19) being provided between this removable part (3) and the lower part (6) of the car wall (2) such that the distance between the inner side of the side wall part (3) placed on the floor (1) that faces the car and the elements (7, 8) of the elevator drive that are moving relative to the moving elevator car is at least 10 cm.
  2. Elevator car comprising a servicing window for an elevator according to claim 1, characterized in that the spacer (5) is formed by a horizontally arranged handrail which is fitted to and protrudes from the car wall (2) at a height of 800 mm to 950 mm.
  3. Elevator car comprising a servicing window for an elevator according to claim 1, characterized in that the spacer (5) consists of at least one bracket (19) which is mounted on the rear of the side wall part (3), can be lifted up or swiveled open and can be suspended from the upper edge of the stationary side wall part (6) by means of a profile portion (20).
  4. Elevator car comprising a servicing window for an elevator according to any of the preceding claims, characterized in that a safety device is provided so that the elevator car can be moved with the side wall part (3) removed only if the side wall part (3), when placed on the floor, forms a balustrade (4), the safety device forming an electrical loop which includes a cable holder (9) on the outside of the car (10), and a double-pole cable (11) which extends from said holder and comprises a plug (12), it being possible, at the rear of the side wall part (3), to insert the plug (12) into a socket (13) mounted on said rear of the side wall part, which socket electrically connects the two poles in its interior.
  5. Elevator car comprising a servicing window for an elevator according to any of the preceding claims, characterized in that the removable side wall part (3) is a mirror glass which can be inserted into a profile strip (22) on the upper edge of the stationary side wall part (6) and can be secured to the car wall by means of lateral retaining strips (14).
  6. Elevator car comprising a servicing window for an elevator according to any of the preceding claims, characterized in that the removable side wall part (3) is a transparent sheet glass consisting of compound glass which can be inserted into a profile strip (22) on the upper edge of the stationary side wall part (6) and can be secured to the car wall by means of lateral retaining strips (14).
  7. Elevator car comprising a servicing window for an elevator according to any of the preceding claims, characterized in that the removable side wall part (3) is a panel made of wood, plastics material or metal or consists of a combination of these materials, it being possible to insert the side wall part (3) into a profile strip (22) on the upper edge of the stationary side wall part (6) and secure said side wall part to the car wall by means of lateral retaining strips (14).
EP07816276.5A 2006-12-20 2007-11-27 Elevator car with maintenance window Active EP2091855B1 (en)

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KR20090101447A (en) 2009-09-28
US20130019444A1 (en) 2013-01-24
EP2091855A1 (en) 2009-08-26
CH699369B1 (en) 2010-02-26
WO2008074167A1 (en) 2008-06-26
MX2009006125A (en) 2010-01-27
US8316998B2 (en) 2012-11-27
AU2007335173A1 (en) 2008-06-26
EA200900678A1 (en) 2010-02-26
CN101588982B (en) 2012-02-08
US20100038183A1 (en) 2010-02-18
JP5285618B2 (en) 2013-09-11
EA014793B1 (en) 2011-02-28
JP2010513167A (en) 2010-04-30
AU2007335173B2 (en) 2013-05-02
CA2673423A1 (en) 2008-06-26
BRPI0720491A2 (en) 2014-02-04
HK1137006A1 (en) 2010-07-16
CN101588982A (en) 2009-11-25
US8967336B2 (en) 2015-03-03

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