EP2102088B1 - Elevator car for reduced elevator hoistway tops - Google Patents

Elevator car for reduced elevator hoistway tops Download PDF

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Publication number
EP2102088B1
EP2102088B1 EP07816277.3A EP07816277A EP2102088B1 EP 2102088 B1 EP2102088 B1 EP 2102088B1 EP 07816277 A EP07816277 A EP 07816277A EP 2102088 B1 EP2102088 B1 EP 2102088B1
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Prior art keywords
roof
lift
car
elevator
recess
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EP07816277.3A
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German (de)
French (fr)
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EP2102088A1 (en
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Markus Henseler
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Inventio AG
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Inventio AG
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    • 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
    • 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

  • This invention relates to a lift car for reduced lift shaft heads.
  • many lift drives are located at the top of the lift shaft.
  • a lift mechanic must climb onto the cab roof of the lift cab to gain access to the lift drive. This is fundamentally dangerous, and in the past a number of fitters have been injured or even killed by being crushed while carrying out such inspection and maintenance work between the lift car and the shaft ceiling. Therefore, the legislator has issued strict guidelines that should make crushing impossible.
  • a lift to be installed there has a cabin with an interior height of 220 cm. Approx. 10cm are required for the crossing above the cabin. For the lift door drive, it also requires a certain height. This leaves 50cm left in the top normal lift position. These are required as a safety buffer. If the lift stops with a heavy load on the top floor, exactly at floor level, and then is relieved, the car can still rise a few cm due to the elasticity of the carrying side. Even then, there must still be a wide gap up to the top of the lift shaft so that the lift cabin cannot hit it under any circumstances. In this constellation with a lift cabin height of 220cm plus the minimum height of the prescribed quad lying down of 0.50m, i.e.
  • EP 1 533 265 A shows an elevator car for a reduced elevator headroom, the elevator car having a car roof that lowers and rises. A mechanic can access the lowered roof for maintenance work. Movement of the canopy is accomplished using a winch device.
  • the object of the present invention is therefore to create an elevator car for reduced elevator shaft heads which requires a minimum shaft head height for a specific elevator car height and is nevertheless able to meet the provisions of the elevator ordinance with regard to the clearances against the risk of crushing.
  • the figure 2 shows another conventional lift construction.
  • the lift motor is located further down, not directly above the cross-section of the lift car, but at about the level of the upper edge of the car when the car is in its uppermost position, as shown here.
  • the lift motor must still be serviced from the outside - it is not accessible from inside the cabin.
  • the cuboid 0.5m ⁇ 0.6m ⁇ 0.8m can be on a different side.
  • figure 3 shows an elevator car according to the invention for reduced elevator shaft heads.
  • the lift car has reached the uppermost position as shown, its upper outer edge 2 has completely run over the laterally arranged lift motor 1 , so that the lift motor 1 is located to the side of the lift car 10 .
  • the proportions are significantly different here.
  • this cabin 10 can be driven almost to the upper end of the lift shaft head 11 .
  • Only the height of around 15 to 20 cm for installing the door drives for the lift doors and a few centimeters of buffer zone in the event that the lift cabin is raised a few centimeters due to the elasticity of the carrying cables with the weight relief when people get out must be taken into account.
  • figure 4 shows how maintenance work can be carried out on this lift construction.
  • a part 3 of the side wall of the cabin 10 is removed inwards into the cabin 10 and placed in front of the lower part 6 of the side wall.
  • this removable side wall part 3 is placed at a certain distance in front of the lower side wall part 6 .
  • the distance is maintained by spacers 12 or by a handrail on the lower part 6 of the side wall.
  • the Figure 3 and 4 sees, namely the supporting ropes 7 run very close to the elevator car 10, because the attempt is made to keep the depth of the drive devices as small as possible in order not to waste space in the elevator shaft unnecessarily at the expense of the car width.
  • a regulation requires that the distance from the parapet 4, on which the lift fitter works, up to to the moving parts to be serviced and checked is at least 10 cm. By placing the upper side wall part 3 at a distance, it is ensured that this distance of 10 cm to the next moving parts, namely to the supporting cables but also to the guide rails, which the cabin is driven past for maintenance purposes, is maintained.
  • the roof 9 of the lift cabin 10 can be used as in Figure 3 and 4 shown to be made from a bare metal sheet that is attached to the cabin roof from below by plug-in or clamp connections. As soon as a certain load is exceeded, the connections are released and the roof 9 falls into the elevator car.
  • the roof 9 is, for example, the size of a base area of the required cuboid, i.e. the size 60 cm ⁇ 80 cm, 50 cm ⁇ 60 cm, or 50 cm ⁇ 80 cm, is held by a number of predetermined breaking points on a corresponding hatch in the lift cabin roof. As soon as a certain load acts on the roof 9, the predetermined breaking points break and the roof 9 falls into the elevator car 10.
  • the flexible roof piece can also be attached to ropes, which can be pulled out, for example, with a spring.
  • a spring This can be realized, for example, as in figure 4 shown, namely that the corners of the roof piece hang on wire pulls 13, which are guided over pulleys 14,15 along the outside of the elevator car and are attached to tension springs 16 there.
  • other guides for the cable pulls are also conceivable, so that they only run on the cabin roof.
  • the roof 9 lowers, stretching the springs 16, at least far enough for the required free space F to be available.
  • the flexible roof 9 can also be designed as a foldable roof, in that it is held in a hinged manner on a corresponding hatch in the cabin roof and is held on the side facing away from the hinge via a predetermined breaking point.
  • the roof can also be designed as a wing door, so that two wings hinged on opposite sides of a hatch form the roof. A bolt with a predetermined breaking point closes the door leaves and holds them together until a certain load is exceeded. The two door leaves then fold down.
  • the minimum height of the lift shaft head is still 255cm. This 45cm difference is required by the cabin construction and in particular by the motor drives for the lift doors and by a buffer zone. With even more compact electric motors for the door drives, the headroom height can be further reduced by a few cm, to approx. 240cm.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Description

Diese Erfindung betrifft eine Liftkabine für reduzierte Liftschachtköpfe. Herkömmlich sind viele Liftantriebe im oberen Ende des Liftschachtes angeordnet. Zur Wartung dieser Liftantriebe muss ein Liftmonteur auf das Kabinendach der Liftkabine steigen, um Zugang zum Liftantrieb zu bekommen. Das ist grundsätzlich gefährlich, und schon einige Monteur wurden in der Vergangenheit beim Ausführen solcher Kontroll- und Wartungsarbeiten zwischen Liftkabine und Schachtdecke verletzt oder gar durch Zerquetschung getötet. Daher hat der Gesetzgeber strenge Richtlinien erlassen, die ein Zerquetschen verunmöglichen sollen.This invention relates to a lift car for reduced lift shaft heads. Traditionally, many lift drives are located at the top of the lift shaft. To service these lift drives, a lift mechanic must climb onto the cab roof of the lift cab to gain access to the lift drive. This is fundamentally dangerous, and in the past a number of fitters have been injured or even killed by being crushed while carrying out such inspection and maintenance work between the lift car and the shaft ceiling. Therefore, the legislator has issued strict guidelines that should make crushing impossible.

Als zentrale Vorschrift müssen bei neuen Aufzügen die Quetschgefahren in den Endstellungen der Aufzugskabine mit Freiräumen bzw. Schutznischen vermieden werden. Aufgrund der Formulierung von Ziffer 2.2. in der Aufzugsverordnung und der EG-Aufzugsrichtlinie bedeutet das, dass für den Gesetzgeber die optimale Sicherheit mit einem zwingend vorgeschriebenen Schutzraum erreicht wird. Der Schachtkopf, die Schachtgrube und der Schutzraum sind durch die harmonisierten Normen SN EN 81-1/2:1998 definiert. Danach heisst es dort in Punkt 5.7.1 zum oberen Schutzraum von Treibscheibenaufzügen unter d): Der Raum über der Kabine muss einen auf einer seiner Seiten liegenden Quader mit den Mindestmassen von 0.5m × 0.6m × 0.8m aufnehmen können, und zwar permanent. Ein zusätzlicher Freiraum kann temporär erstellt werden, wenn sichergestellt ist, dass der Liftschacht nur dann zugänglich ist, wenn dieser Freiraum erstellt ist. Die Höhe dieses zusätzlichen Freiraumes mit Grundfläche 0.48m × 0.25m ist abhängig von der Maximalgeschwindigkeit der Liftkabine und berechnet sich in Metern zu 1 + 0.035 × v2, wobei v in [m/s] eingesetzt wird. Diese Vorschriften gelten und müssen auch dann eingehalten werden, wenn es für die Wartung des Liftes überhaupt nicht nötig ist, auf das Kabinendach zu steigen.As a central regulation, the risk of crushing in the end positions of the elevator car with free spaces or protective niches must be avoided in new elevators. Due to the wording of Section 2.2. in the Elevator Ordinance and the EC Elevator Directive, this means that the legislator sees optimum safety with a mandatory protective area. The headroom, the pit and the shelter are defined by the harmonized standards SN EN 81-1/2:1998. Then it says there in point 5.7.1 on the upper protective space of traction sheave elevators under d): The space above the cabin must be able to accommodate a cuboid with the minimum dimensions of 0.5m × 0.6m × 0.8m lying on one of its sides, permanently. An additional free space can be created temporarily if it is ensured that the lift shaft is only accessible when this free space is created. The height of this additional free space with a floor area of 0.48m × 0.25m depends on the maximum speed of the elevator car and is calculated in meters as 1 + 0.035 × v 2 , where v is used in [m/s]. These regulations apply and must be observed even if it is not necessary to climb onto the cabin roof for maintenance of the lift.

Bisher war es allerdings kaum nötig, ein Begehen der Liftkabine (Kabinendach) zu vermeiden. Die meisten Liftantriebe befinden sich im oberen Ende des Liftschachtkopfes und daher muss die Liftkabine (Kabinendach) begehbar sein, um die Wartungsarbeiten auszuführen. Anders verhält es sich bei einer Liftkonstruktion, bei welcher das obere Ende des Schachtkopfes völlig frei bleibt. Von der Architektur her kommt der zunehmende Wunsch, auf unschöne Lichtschachtköpfe auf den Gebäuden verzichten zu können. Das aber stellt die Lifthersteller vor neue Herausforderungen, gerade weil mit jeder Konstruktion auch die geltenden Aufzugsverordnungen erfüllt werden müssen. Neuste Liftkonstruktionen erlauben eine minimale Schachtkopfhöhe von bloss noch 280cm. Das ist das Mass vom obersten Stockwerkboden bis hinauf an die Unterseite des Liftschachtkopfes, das heisst an die Decke des Liftschachtes. Ein dort einzubauender Lift weist zum Beispiel eine Kabine von 220cm Innenhöhe auf. Ca. 10cm werden für die Überfahrt oben über der Kabine benötigt. Für den Lifttürenantrieb benötigt es zusätzlich gewisse Höhe. Somit verbleiben in der obersten normalen Liftposition noch noch 50cm übrig. Diese werden als Sicherheitspuffer benötigt. Wenn der Lift mit grosser Last im obersten Stockwerk anhält, genau auf Stockwerkhöhe, und dann entlastet wird, so kann sich die Kabine aufgrund der Elastizität der Tragseite noch um einige cm anheben. Auch dann muss noch ein Spalt breit Luft bis zum Liftschachtkopf vorhanden sein, damit in keinem Fall die Liftkabine an demselben anschlagen kann. Bei dieser Konstellation mit Liftkabinenhöhe von 220cm plus die Minimalhöhe des liegenden vorgeschriebenen Quades von 0.50m, das heisst 220cm + 50cm + 10cm Überfahrt, ergibt sich gerade diese Schachtkopfhöhe von 280cm. Es besteht der Wunsch, dieses Mass des Schachkopfes noch weiter zu reduzieren, denn die übliche Stockwerkhöhe in Wohnbauten beträgt 240cm. Dann kommt die Betondecke und allenfalls die Flachdachkonstruktion darüber. Mit Liftschachtköpfen von 280cm ab dem obersten Geschossboden ist man in vielen Fällen immer noch höher als die zugehörige Dachkonstruktion, sodass der Liftkopf immer hoch aus dem Dach herausragt. Gerade das soll aber vermieden werden.So far, however, it has hardly been necessary to avoid entering the lift cabin (cabin roof). Most lift drives are located at the top of the lift shaft head and therefore the lift car (car roof) must be accessible to carry out maintenance work. The situation is different with a lift construction, in which the upper end of the shaft head remains completely free. From the architecture comes the increasing desire to be able to do without unsightly light well heads on the buildings. However, this poses new challenges for lift manufacturers, precisely because the applicable lift regulations must also be met with every design. The latest lift constructions allow a minimum shaft head height of just 280cm. This is the measurement from the top floor up to the underside of the lift shaft head, i.e. to the ceiling of the lift shaft. A lift to be installed there, for example, has a cabin with an interior height of 220 cm. Approx. 10cm are required for the crossing above the cabin. For the lift door drive, it also requires a certain height. This leaves 50cm left in the top normal lift position. These are required as a safety buffer. If the lift stops with a heavy load on the top floor, exactly at floor level, and then is relieved, the car can still rise a few cm due to the elasticity of the carrying side. Even then, there must still be a wide gap up to the top of the lift shaft so that the lift cabin cannot hit it under any circumstances. In this constellation with a lift cabin height of 220cm plus the minimum height of the prescribed quad lying down of 0.50m, i.e. 220cm + 50cm + 10cm crossing, this results in this shaft head height of 280cm. There is a desire to further reduce this measure of the chess head, because the usual storey height in residential buildings is 240cm. Then comes the concrete ceiling and possibly the flat roof construction over it. With lift shaft heads of 280 cm from the top floor, in many cases you are still higher than the associated roof construction, so that the lift head always protrudes high out of the roof. But that is exactly what should be avoided.

EP 1 533 265 A zeigt eine Liftkabine für eine reduzierte Liftschachtkopf, wobei die Liftkabine einen Kabinendach aufweist, das sich absenkt und sich anhebt. Ein Monteur kann das abgesenkte Dach für Wartungsarbeiten betreten. Die Bewegung des Kabinendachs erfolgt unter Verwendung einer Windenvorrichtung. EP 1 533 265 A shows an elevator car for a reduced elevator headroom, the elevator car having a car roof that lowers and rises. A mechanic can access the lowered roof for maintenance work. Movement of the canopy is accomplished using a winch device.

Die Aufgabe der vorliegenden Erfindung ist es deshalb, eine Liftkabine für reduzierte Liftschachtköpfe zu schaffen, welche bei einer bestimmten Liftkabinenhöhe eine minimale Schachtkopfhöhe verlangt und dennoch die Vorschriften der Aufzugsverordnung hinsichtlich der Freiräume gegen die Quetschgefahr zu erfüllen vermag.The object of the present invention is therefore to create an elevator car for reduced elevator shaft heads which requires a minimum shaft head height for a specific elevator car height and is nevertheless able to meet the provisions of the elevator ordinance with regard to the clearances against the risk of crushing.

Diese Aufgabe wird mit einer Liftkabine für reduzierte Liftschachtköpfe gemäß Anspruch 1 gelöst.This object is achieved with an elevator car for reduced elevator shaft heads according to claim 1.

In den Zeichnungen ist das Prinzip aufgezeigt und wird anhand derselben nachfolgend erläutert.The principle is shown in the drawings and is explained below on the basis of the same.

Es zeigt:

Figur 1:
Einen Liftschachtkopf mit der Liftkabine in der höchsten Position dargestellt, mit konventionellem Liftantrieb, beim Ausführen von Wartungsarbeiten am Liftmotor, und eingezeichnetem vorschriftsgemässem Freiraum F als Sicherheit gegen die Quetschgefahr;
Figur 2:
Einen Liftschacht mit der Liftkabine in der höchsten Position dargestellt, mit tiefer liegendem Liftmotor, mit eingezeichnetem vorschriftsgemässen Freiraum F als Sicherheit gegen die Quetschgefahr;
Figur 3:
Einen Liftschachtkopf mit der Liftkabine in der höchsten Position dargestellt, wobei die Liftkabine den seitlich angeordneten Liftmotor überfährt, sodass Wartungsarbeiten aus der Liftkabine heraus durchführbar sind;
Figur 4:
Einen Liftschachtkopf mit der Liftkabine in der höchsten Position dargestellt, wobei die Liftkabine den seitlich angeordneten Liftmotor überfährt, mit geöffnetem Wartungsfenster zur Durchführung von Wartungsarbeiten aus der Liftkabine.
It shows:
Figure 1:
A lift shaft head shown with the lift car in the highest position, with conventional lift drive, performing maintenance on the lift motor, and prescribed clearance F drawn to provide protection against crushing hazard;
Figure 2:
Shown is a lift shaft with the lift car in the highest position, with the lift motor lower, with the regulatory clearance F drawn in as security against the risk of crushing;
Figure 3:
Shown is a lift shaft head with the lift car in the highest position, with the lift car running over the laterally arranged lift motor, so that maintenance work can be carried out from the lift car;
Figure 4:
Shown is a lift shaft head with the lift car in the highest position, with the lift car overriding the side mounted lift motor, with the service window open for service to be carried out from the lift car.

Wie man anhand von Figur 1 erkennt, müssen bei einer solchen herkömmlichen Anordnung des Liftmotors die Wartungsarbeiten zwingend vom Kabinendach aus durchgeführt werden. Der Liftmonteur steht hierzu auf dem Kabinendach. Auf diesem Kabinendach muss ein Freiraum F von 0.5m × 0.6m × 0.8m stets vorhanden sein, zum Beispiel wie eingezeichnet. Der Quader mit den Massen 0.5m × 0.6m × 0.8m kann allerdings auf einer anderen Seite liegen. Selbst wenn der Liftmotor und alle anderen Antriebselemente unten im Liftschacht angeordnet wären, so müsste dieser eingezeichnete Freiraum vorhanden sein. Die Liftkabine könnte also auch dann nicht mit ihrem Kabinendach ganz ans Ende des Liftschachtkopfes gefahren werden.How to based on figure 1 recognizes, with such a conventional arrangement of the lift motor, the maintenance work must be carried out from the cabin roof. The lift mechanic stands on the cabin roof for this purpose. There must always be a free space F of 0.5m × 0.6m × 0.8m on this cabin roof, for example as shown. However, the cuboid with the dimensions 0.5m × 0.6m × 0.8m can lie on a different side. Even if the lift motor and all other drive elements would be arranged below in the lift shaft, this free space would have to be available. Even then, the elevator car could not be moved with its car roof all the way to the end of the elevator shaft head.

Die Figur 2 zeigt eine andere konventionelle Liftkonstruktion. Bei dieser ist der Liftmotor weiter unten angeordnet, nicht direkt über dem Querschnitt der Liftkabine, sondern etwa auf der Höhe der oberen Kabinenkante, wenn die Kabine sich wie hier gezeigt in ihrer obersten Position befindet. Der Liftmotor muss aber immer noch von aussen gewartet werden - er ist nicht vom Innern der Kabine aus zugänglich. Auch hier muss auf dem Kabinendach ein Freiraum F von 0.5m × 0.6m × 0.8m stets vorhanden sein, wobei dieser beispielsweise so liegen kann wie eingezeichnet. Der Quader 0.5m × 0.6m × 0.8m kann allerdings wiederum auf einer anderen Seite liegen.the figure 2 shows another conventional lift construction. In this case, the lift motor is located further down, not directly above the cross-section of the lift car, but at about the level of the upper edge of the car when the car is in its uppermost position, as shown here. However, the lift motor must still be serviced from the outside - it is not accessible from inside the cabin. Here, too, there must always be a free space F of 0.5m × 0.6m × 0.8m on the cabin roof, which can be, for example, as shown. However, the cuboid 0.5m × 0.6m × 0.8m can be on a different side.

Ganz anders liegen die Verhältnisse bei der Ausführung nach Figur 3, die eine erfindungsgemäss Liftkabine für reduzierte Liftschachtköpfe zeigt. Hier hat die Liftkabine, wenn sie wie gezeigt in der obersten Position angelangt ist, den seitlich angeordneten Liftmotor 1 mit ihrer oberen Aussenkante 2 gänzlich überfahren, sodass der Liftmotor 1 sich seitlich der Liftkabine 10 befindet. Die Mass-Verhältnisse sind hier wesentlich anders. Bei einer Liftkabinenhöhe von 220cm kann diese Kabine 10 nahezu ans obere Ende des Liftschachtkopfes 11 gefahren werden. Einberechnet muss bloss noch die Höhe von etwa 15 bis 20cm zum Aufbau der Türenantriebe für die Lifttüren, sowie einige Zentimeter Pufferzone für den Fall, dass die Liftkabine aufgrund der Elastizität der Tragseile mit der Gewichts-Entlastung beim Ausstieg der Personen ein paar Zentimeter angehoben wird. Erfüllt werden muss aber in jedem Fall und unabhängig von vorgenanntem die Bedingung, dass ein Freiraum F von 0.5m × 0.6m × 0.8m über der Kabine 10 erhalten ist, obwohl niemals ein Liftmonteur auf das Dach dieser Liftkabine 10 steigen muss. Erfüllt ist die Forderung nach diesem Freiraum F, indem die Decke 9 der Liftkabine 10 nachgiebig konstruiert ist, sodass der Freiraum F sofort zur Verfügung stände, würde ein Körper sich auf dem Kabinendach befinden und die Liftkabine 10 in die hier gezeigte oberste Position im Liftschacht 11 fahren. Sobald das Kabinendach 9 eine gewisse Last aufnehmen muss, gibt es nach unten nach. In der Praxis genügt es, wenn diese Last zum Beispiel 150N beträgt - so leicht ist ohnehin kein Monteur.The circumstances in the execution are quite different figure 3 , which shows an elevator car according to the invention for reduced elevator shaft heads. Here, when the lift car has reached the uppermost position as shown, its upper outer edge 2 has completely run over the laterally arranged lift motor 1 , so that the lift motor 1 is located to the side of the lift car 10 . The proportions are significantly different here. With a lift cabin height of 220 cm, this cabin 10 can be driven almost to the upper end of the lift shaft head 11 . Only the height of around 15 to 20 cm for installing the door drives for the lift doors and a few centimeters of buffer zone in the event that the lift cabin is raised a few centimeters due to the elasticity of the carrying cables with the weight relief when people get out must be taken into account. However, in any case and independently of the above, the condition that a free space F of 0.5m×0.6m×0.8m is maintained above the car 10 must be met, although an elevator fitter never has to climb onto the roof of this elevator car 10 . The requirement for this free space F is met in that the ceiling 9 of the elevator car 10 is designed to be flexible, so that the free space F would be available immediately if a body were to be on the car roof and the elevator car 10 was in the uppermost position in the elevator shaft 11 shown here ride. As soon as the canopy 9 has to absorb a certain load, it gives in downwards. In practice, it is sufficient if this load is 150N, for example - no fitter is that light anyway.

In Figur 4 ist gezeigt, wie die Wartungsarbeiten an dieser Liftkonstruktion ausgeführt werden können. Hierzu wird ein Teil 3 der Seitenwand der Kabine 10 nach innen in die Kabine 10 hinein entfernt und vor dem unteren Teil 6 der Seitenwand abgestellt. Dabei wird dieses abnehmbare Seitenwandteil 3 in einem bestimmten Abstand vor dem unteren Seitenwandteil 6 hingestellt. Der Abstand wird durch Distanzhalter 12 oder durch einen Handlauf am unteren Seitenwandteil 6 eingehalten. Wie man anhand der Figur 3 und 4 sieht, laufen nämlich die Tragseile 7 sehr nahe an der Liftkabine 10 vorbei, denn man sucht die Tiefe der Antriebseinrichtungen so gering wie möglich zu halten, um nicht unnötig Platz im Liftschacht auf Kosten der Kabinenbreite zu vergeben. Eine Vorschrift verlangt, dass der Abstand von der Brüstung 4, an welcher der Liftmonteur arbeitet, bis hin zu den beweglichen zu wartenden und zu kontrollierenden Teilen mindestens 10cm beträgt. Durch das beabstandete Hinstellen des oberen Seitenwandteils 3 wird sichergestellt, dass dieser Abstand von 10cm zu den nächsten beweglichen Teilen, nämlich zu den Tragseilen aber auch zu den Führungsschienen, an denen ja mit der Kabine zu Wartungszwecken vorbeigefahren wird, eingehalten wird.In figure 4 shows how maintenance work can be carried out on this lift construction. For this purpose, a part 3 of the side wall of the cabin 10 is removed inwards into the cabin 10 and placed in front of the lower part 6 of the side wall. In this case, this removable side wall part 3 is placed at a certain distance in front of the lower side wall part 6 . The distance is maintained by spacers 12 or by a handrail on the lower part 6 of the side wall. How to use the Figure 3 and 4 sees, namely the supporting ropes 7 run very close to the elevator car 10, because the attempt is made to keep the depth of the drive devices as small as possible in order not to waste space in the elevator shaft unnecessarily at the expense of the car width. A regulation requires that the distance from the parapet 4, on which the lift fitter works, up to to the moving parts to be serviced and checked is at least 10 cm. By placing the upper side wall part 3 at a distance, it is ensured that this distance of 10 cm to the next moving parts, namely to the supporting cables but also to the guide rails, which the cabin is driven past for maintenance purposes, is maintained.

In einer ersten Variante kann das Dach 9 der Liftkabine 10 wie in Figur 3 und 4 gezeigt aus einem blossen Blech gefertigt sein, das von unten durch Steck- oder Klemmverbindungen am Kabinendach befestigt ist. Sobald eine gewisse Last überschritten wird, lösen sich die Verbindungen und das Dach 9 fällt in die Liftkabine. In einer weiteren Ausführung ist das Dach 9 zum Beispiel von der Grösse einer Grundfläche des geforderten Quaders, also in der Grösse 60cm × 80cm, 50cm × 60cm, oder 50cm × 80cm über eine Anzahl Sollbruchstellen an einer entsprechenden Luke im Liftkabinendach gehalten. Sobald eine gewisse Last auf das Dach 9 einwirkt, brechen die Sollbruchstellen und das Dach 9 fällt in die Liftkabine 10 hinein. Weiter kann das nachgiebige Dachstück auch an Seilen befestigt werden, welche zum Beispiel federbelastet ausziehbar sind. Das kann bespielsweise so realisiert werden wie in Figur 4 gezeigt, nämlich dass die Ecken des Dachstückes an Drahtzügen 13 hängen, die über Umlenkrollen 14,15 längs der Aussenseite der Liftkabine geführt sind und dort an Zugfedern 16 befestigt sind. Es sind selbstverständlich auch andere Führungen der Drahtseilzüge denkbar, sodass diese bloss auf dem Kabinendach verlaufen. Sobald durch eine Belastung des Daches die Federkräfte überstiegen werden, senkt sich das Dach 9 unter Dehnung der Federn 16 nach unten, mindestens soweit, dass der geforderte Freiraum F zur Verfügung steht. Das nachgiebige Dach 9 kann auch als abklappbares Dach ausgeführt sein, indem es scharnierend an einer entsprechenden Luke im Kabinendach gehalten ist, und an der dem Scharnier abgewandten Seite über eine Sollbruchstelle gehalten ist. Das Dach kann auch als Flügeltüre ausgebildet sein, sodass also zwei an gegenüberliegenden Seiten einer Luke scharnierend angelenkte Flügel das Dach bilden. Ein mit einer Sollbruchstelle versehender Riegel verschliesst die Türflügel und hält sie zusammen, bis eine gewisse Last überschritten ist. Dann klappen die beiden Türflügel nach unten. Mit diesen wahlweise verschiedenen Massnahmen steht in jedem Fall der geforderte Freiraum F zur Verfügung, obwohl er technisch gesehen nicht mehr nötig wäre. Aber der Vorschrift ist Genüge getan und das erlaubt nun den Bau von Liftanlagen mit wesentlich reduzieren Liftschachtkopfhöhen. In der Praxis kommt man bei Kabinen-Innenhöhen von 220cm auf minimale Höhen des Liftschachtkopfes von noch 255cm. Diese 45cm Differenz werden von der Kabinenkonstruktion und insbesondere von den Motorantrieben für die Lifttüren sowie von einer Pufferzone benötigt. Bei noch kompakteren Elektromotoren für die Türantriebe lässt sich die Schachtkopfhöhe noch weiter um einige cm reduzieren, auf ca. 240cm.In a first variant, the roof 9 of the lift cabin 10 can be used as in Figure 3 and 4 shown to be made from a bare metal sheet that is attached to the cabin roof from below by plug-in or clamp connections. As soon as a certain load is exceeded, the connections are released and the roof 9 falls into the elevator car. In another embodiment, the roof 9 is, for example, the size of a base area of the required cuboid, i.e. the size 60 cm × 80 cm, 50 cm × 60 cm, or 50 cm × 80 cm, is held by a number of predetermined breaking points on a corresponding hatch in the lift cabin roof. As soon as a certain load acts on the roof 9, the predetermined breaking points break and the roof 9 falls into the elevator car 10. Furthermore, the flexible roof piece can also be attached to ropes, which can be pulled out, for example, with a spring. This can be realized, for example, as in figure 4 shown, namely that the corners of the roof piece hang on wire pulls 13, which are guided over pulleys 14,15 along the outside of the elevator car and are attached to tension springs 16 there. Of course, other guides for the cable pulls are also conceivable, so that they only run on the cabin roof. As soon as the spring forces are exceeded as a result of a load on the roof, the roof 9 lowers, stretching the springs 16, at least far enough for the required free space F to be available. The flexible roof 9 can also be designed as a foldable roof, in that it is held in a hinged manner on a corresponding hatch in the cabin roof and is held on the side facing away from the hinge via a predetermined breaking point. The roof can also be designed as a wing door, so that two wings hinged on opposite sides of a hatch form the roof. A bolt with a predetermined breaking point closes the door leaves and holds them together until a certain load is exceeded. The two door leaves then fold down. With these optionally different measures, in the required free space F is available in every case, although from a technical point of view it would no longer be necessary. But the regulation has been satisfied and this now allows the construction of lift systems with significantly reduced lift shaft head heights. In practice, with cabin interior heights of 220cm, the minimum height of the lift shaft head is still 255cm. This 45cm difference is required by the cabin construction and in particular by the motor drives for the lift doors and by a buffer zone. With even more compact electric motors for the door drives, the headroom height can be further reduced by a few cm, to approx. 240cm.

Claims (1)

  1. Elevator car for reduced elevator shaft heads, which remain free of drive elements, characterized in that a car roof (9), on a base area of at least 0.6 m × 0.5 m, is designed to be flexible, such that in the case of a load of 150 N or more, the car roof either
    - collapses, in that it is connected to the roof part framing the flexible cab roof (9) exclusively via plug-in connections, or in that it is connected to the roof part framing the flexible cab roof (9) exclusively via clamping connections,
    - folds down, in that it is articulated in a hinge-like manner on a recess in the roof, which is designed as a hatch, and is connected to the recess in the roof on the other sides via one or more predetermined breaking points, or in that it consists of two wings which are articulated in a hinge-like manner on a recess in the roof, which is designed as a hatch, and on the sides of which and/or between the end sides of which wings one or more predetermined breaking points are present, which are connected to the recess in the roof, or
    - lowers, in that it is arranged on a recess in the roof, which is designed as a hatch, and can be lowered from the rest of the roof by means of spring-loaded cables (13) via deflection rollers (14, 15), counter to the force of a relevant tension spring (16) in each case.
EP07816277.3A 2006-12-20 2007-11-27 Elevator car for reduced elevator hoistway tops Active EP2102088B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH02070/06A CH698910B1 (en) 2006-12-20 2006-12-20 Elevator car for reduced elevator shaft heads.
PCT/CH2007/000594 WO2008074168A1 (en) 2006-12-20 2007-11-27 Elevator car for reduced elevator hoistway tops

Publications (2)

Publication Number Publication Date
EP2102088A1 EP2102088A1 (en) 2009-09-23
EP2102088B1 true EP2102088B1 (en) 2023-01-04

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EP (1) EP2102088B1 (en)
CH (1) CH698910B1 (en)
WO (1) WO2008074168A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH700501B1 (en) * 2007-09-17 2010-09-15 Henseler H Ag Elevator car for reduced elevator shaft heads.
EP2559646A1 (en) 2011-08-18 2013-02-20 Inventio AG Lift assembly with lift cabin with flexible ceiling construction
CN108016967A (en) * 2018-01-16 2018-05-11 安徽智敏电气技术有限公司 A kind of pre-weighed device of elevator
EP3530603B1 (en) 2018-02-27 2022-08-10 Otis Elevator Company Elevator car comprising a working platform and method of moving a working platform

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003016192A1 (en) * 2001-08-13 2003-02-27 Kone Corporation Method and arrangement for forming a safety space in the lower part of an elevator shaft

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002020062A (en) * 2000-07-07 2002-01-23 Mitsubishi Electric Corp Elevator cage device
FR2811971B1 (en) * 2000-07-21 2002-12-13 Sodimas ELEVATOR INSTALLATION WITH A REDUCED HEIGHT UPPER LEVEL
DE10104351A1 (en) * 2001-02-01 2002-08-22 Ingenieurgesellschaft Foerder Lift (elevator) with drive and control units traveling with cabin has these units mounted on cabin roof
CN1323921C (en) * 2002-08-23 2007-07-04 三菱电机株式会社 Elevator apparatus
US20050224299A1 (en) * 2004-04-13 2005-10-13 Soemardjan San A Elevator recessed car top for refuge area

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003016192A1 (en) * 2001-08-13 2003-02-27 Kone Corporation Method and arrangement for forming a safety space in the lower part of an elevator shaft

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WO2008074168A1 (en) 2008-06-26
CH698910B1 (en) 2009-12-15
EP2102088A1 (en) 2009-09-23

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