EP1854758B1 - Lift cage - Google Patents

Lift cage Download PDF

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Publication number
EP1854758B1
EP1854758B1 EP07004218.9A EP07004218A EP1854758B1 EP 1854758 B1 EP1854758 B1 EP 1854758B1 EP 07004218 A EP07004218 A EP 07004218A EP 1854758 B1 EP1854758 B1 EP 1854758B1
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EP
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Prior art keywords
telescoping
apron
elevator cage
unlocking
car
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EP07004218.9A
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German (de)
French (fr)
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EP1854758A1 (en
Inventor
Andreas Wallraff
Georg Wallraff
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W+w Aufzugkomponenten U Co KG GmbH
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W+w Aufzugkomponenten U Co KG GmbH
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Priority to PL07004218T priority Critical patent/PL1854758T3/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/24Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
    • B66B13/28Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers between car or cage and wells
    • B66B13/285Toe guards or apron devices

Definitions

  • the invention relates to an elevator car with a three-part telescopic car apron according to the preamble of patent claim 1.
  • Car skirts in elevator installations have the function of preventing persons from falling into the elevator shaft in the event of an elevator car parked between two floors and thereby to be damaged if the car door is opened to release persons. For this reason, an apron is attached to the underside of the car. This is required, for example, in DIN EN 81-1, 8.4: 1998 with a skirts minimum height of 750 mm.
  • car aprons As described in the DIN EN 81-21 of May 2003, there are rigid car skirts connected to the car, which have the disadvantage that the elevator system must have a correspondingly deep shaft pit when the car is in the lowest holding position.
  • An improvement is made with swiveling car aprons according to DE 101 15 990 C1 achieved, which are pivotable between a position parallel to the car floor in a position perpendicular to the car floor.
  • An elevator car with a motor-pivotable car apron is for example in the DE 103 57 035 A1 described.
  • elevator cars with swivel car skirts known which are held by means of an electromagnet in the position parallel to the car.
  • elevator cars are known with foldable car aprons.
  • An elevator car with a car apron in the manner of a safety gate is in the DE 203 13 911 U1 described.
  • the draft of DIN EN 81-21 stipulates that foldable car aprons must be locked in the folded position.
  • the EP 1 118 576 A2 describes an elevator car with a car apron, which is designed as a telescopic apron, the individual components comparable to the car apron according to FR 2 841 886 A1 be moved into each other or side by side when hitting the pit floor or with the help of special drives.
  • the individual parts fall back into their extended position either by gravity, by spring action or by other operations.
  • the in the JP 05 319746 A described telescopic car apron has the advantage that the required minimum height of 750 mm can be achieved with two telescopically telescoping telescopic elements.
  • the lower telescopic member by means of a hand-operated cable, which is guided over a located in the upper part of the car apron roller, pulled up from the extended state, wherein in the raised state of the lower telescopic element two of the same upper locking pin snap-like in the upper Engage latch members located in the area of the car apron to lock the car apron in the retracted state.
  • the two locking units are each released independently, the cable may be released only delayed, so as to ensure that the operator is not harmed by the extension movement of the apron element. In fact, it could happen that the operator suffers an injury to the foot if, when lowering the car apron, she carelessly projects her foot into the elevator shaft. Improper handling of the rope, however, there is a risk that the skirt falls unchecked down, which can lead to injury to an operator and damage to the car apron.
  • the invention has for its object to provide a comparison with the known car aprons improved telescopic car apron.
  • the locking device can be unlocked by operating only one unlocking, whereby on the one hand the operation is facilitated and on the other hand, a tilting and thus blocking an extendable telescopic element is prevented, which then could be the case when two spaced apart locking units each have to be unlocked independently.
  • the car apron according to the invention has a damping element which brakes the movement from the retracted to the extended state and thus prevents a rapid and dangerous extension movement.
  • the attached to the elevator car upper telescopic element as non-displaceable base element covers in the retracted state of the car apron, the other movable telescopic elements.
  • the residual risk that trapped persons attempt to free themselves when the car is not flushed can also be significantly enhanced by appropriate multilingual and pictogram-supported wam hints, which are clearly visible on the inside of all the bay doors in the immediate vicinity of the shaft door latch and the car apron be minimized.
  • the damping element should preferably be connected to the base element and the lowest telescopic element, so that the entire extension movement is braked. It is also conceivable that damping elements are arranged between the individual telescopic elements.
  • the damping element is advantageously pivotably connected to the base element or the lowest telescopic element, in particular if the damping element is not arranged parallel to the extension direction.
  • the damping element comprises a hydraulic or pneumatic cylinder.
  • each locking element has a hook which cooperates in the locked state with a pin of the locking member.
  • the unlocking element can be arranged in particular on the base element, since this normally covers the other telescopic elements in the retracted state of the car apron.
  • the unlocking can be actuated by means of a polygonal key, in particular a standard triangular key for elevator shaft doors.
  • the unlocking element and the locking element in a particular spring-loaded polygonal lock, in particular Dreikantsch, merged.
  • the car apron of the elevator car on at least two unlocking elements, which interact via the mechanical connection, in particular via a linkage, with the locking device.
  • the unlocking elements can be arranged on the base element perpendicular to the extension direction at a distance from each other. This is advantageous in order to facilitate the work of the operator so that he only has to operate the unlocking element closest to him in order to unlock the locking device. He needs only slightly open the landing door, for example, only a gap of about 15 cm wide, because it is irrelevant due to the arrangement of the unlocking, whether it is a left, right or central closing shaft door.
  • an unlocking element is arranged in the left, one in the right and one in the central region of the base member. The risk of a fall of the operator in the shaft is thus minimized.
  • Each telescopic element can be connected via two, preferably laterally arranged telescopic rail, each with the lower telescopic element.
  • telescopic rails which may be designed, for example, in the manner of known drawer slides, a secure guidance of the telescopic elements is achieved. It is also conceivable that the damping element is integrated in the rails.
  • each telescopic element may have at least one stop, which abuts in the extended state of the car apron against a stop of each underlying telescopic element.
  • electrical monitoring is mounted on the apron, preferably in the form of a switch arranged on the base element at such a height that it is in the retracted state of the car apron of the lowermost telescopic element is operable.
  • the invention further relates to an elevator car which is equipped with a car apron according to the invention.
  • the elevator car may include at least one support strut to prevent pivoting of the apron and for stabilization, which is secured with its one end to the underside or side wall of the elevator car and the other end is secured to the base member.
  • FIGS. 1 to 4 show a car apron 1 in a perspective view.
  • the car apron 1 has a plate-shaped, preferably made of sheet metal base member 10 and two further made of a metal sheet telescopic elements 11 and 12. In retracted state ( Fig.1 The base element 10 largely covers the telescopic elements 11 and 12.
  • the base element 10 is fastened to the elevator car 2 by means of the fastening devices 17 and the support strut 14, which prevents pivoting of the skirt 1 and causes stabilization.
  • unlocking elements 16a, 16b and 16c In the retracted state, two locking elements 3a and 3c arranged on the base element 10 and designed as pivoting hooks engage in two locking elements 5a and 5c arranged on the lowermost telescopic element 12 and designed as pins, whereby the retracted state is locked.
  • the unlocking 16a, 16b and 16c have a triangular profile and can be manually operated by means of a triangular wrench against the force of a spring, not shown from the outside.
  • the pivot hooks 3a and 3c By rotating actuation of the unlocking 16a, 16b or 16c, the pivot hooks 3a and 3c are pivoted and give the locking members 5a and 5c and thus the telescopic elements 11 and 12 free.
  • the unlocking element 16a and the locking element 3a and the unlocking element 16c and the locking element 3c are thus brought together in each case a spring-loaded Dreikantsch, wherein the spring is disposed within the triangular lock.
  • the locking elements 3a and 3c are interconnected by a linkage 6. Thus, it is possible that only one of the unlocking elements 16a, 16b and 16c must be operated to unlock the locking device.
  • the unlocking element 16b is mechanically connected to the linkage 6 via the driver 19.
  • Telescopic rails 15 which are located on both sides of the telescopic elements 10, 11 and 12, out. So that the extension movement does not take place too fast, it is braked by means of a pneumatic or hydraulic cylinder 4 acting as a damping element. This is pivotally deflected on the lowermost telescopic element 12 and by means of the pivot bearing 18 on the base element 10.
  • the lowermost telescopic element 12 has a horizontal end face 13 extending to the extension direction.
  • the telescopic elements 11 and 12 extend until the stops 8a and 8b of the base element 10 and of the telescopic element 11 come to rest against the stops 9a and 9b of the telescopic elements 11 and 12.
  • an electric monitor is mounted on the car apron 1. This purpose is served by an electric switching element 7 arranged on the base element 10, which is actuated by the lower telescopic element 12 when the car apron 1 is retracted.
  • the locking elements 3a and 3c each have a chamfer 20a and 20c, which make it possible for the manual retraction of the telescopic elements 11 and 12, the locking members 5a and 5c can automatically engage in the spring-loaded Dreikantschlösser again.

Landscapes

  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Elevator Door Apparatuses (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Description

Die Erfindung betrifft einen Aufzugfahrkorb mit einer dreiteiligen Teleskop-Fahrkorbschürze gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to an elevator car with a three-part telescopic car apron according to the preamble of patent claim 1.

Ein derartiger Aufzugfahrkorb mit einer zweiteiligen Teleskop-Fahrkorbschürze ist im wesentlichen beschrieben in der JP 05 319746 A , da die Verwendung von drei statt zwei Teleskopelementen eine von mehreren naheliegenden Möglichkeiten ist.Such elevator car with a two-part telescopic car apron is essentially described in the JP 05 319746 A since the use of three instead of two telescope elements is one of several obvious possibilities.

Fahrkorbschürzen in Aufzuganlagen haben die Funktion, zu verhindern, dass Personen im Falle eines zwischen zwei Etagen stehen gebliebenen Aufzugfahrkorbs in den Aufzugschacht fallen und dabei Schaden nehmen, wenn zur Befreiung von Personen die Fahrkorbtür geöffnet wird. Aus diesem Grund ist an der Unterseite des Fahrkorbs eine Schürze angebracht. Dies wird beispielsweise in der DIN EN 81-1, 8.4:1998 mit einer Schürzen-Mindesthöhe von 750 mm gefordert. Es existieren verschiedene Ausführungen von Fahrkorbschürzen. Wie in der DIN-EN 81-21 vom Mai 2003 beschrieben, gibt es starr mit dem Fahrkorb verbundene Fahrkorbschürzen, welche den Nachteil mit sich bringen, dass die Aufzuganlage eine entsprechend tiefe Schachtgrube aufweisen muss, wenn sich der Fahrkorb in der untersten Haltestellung befindet.Car skirts in elevator installations have the function of preventing persons from falling into the elevator shaft in the event of an elevator car parked between two floors and thereby to be damaged if the car door is opened to release persons. For this reason, an apron is attached to the underside of the car. This is required, for example, in DIN EN 81-1, 8.4: 1998 with a skirts minimum height of 750 mm. There are different versions of car aprons. As described in the DIN EN 81-21 of May 2003, there are rigid car skirts connected to the car, which have the disadvantage that the elevator system must have a correspondingly deep shaft pit when the car is in the lowest holding position.

Eine Verbesserung wird mit verschwenkbaren Fahrkorbschürzen gemäß DE 101 15 990 C1 erreicht, welche zwischen einer Position parallel zum Fahrkorbboden in eine Position senkrecht zum Fahrkorbboden verschwenkbar sind. Ein Aufzugfahrkorb mit einer motorisch verschwenkbaren Fahrkorbschürze ist beispielsweise in der DE 103 57 035 A1 beschrieben. Es sind ferner Aufzugfahrkörbe mit verschwenkbaren Fahrkorbschürzen bekannt, welche mittels eines Elektromagneten in der Position parallel zum Fahrkorb gehalten werden. Weiterhin sind Aufzugfahrkörbe mit faltbaren Fahrkorbschürzen bekannt. Ein Aufzugfahrkorb mit einer Fahrkorbschürze nach Art eines Scherengitters ist in der DE 203 13 911 U1 beschrieben. Der Entwurf der DIN EN 81-21 sieht vor, dass faltbare Fahrkorbschürzen in der gefalteten Stellung verriegelt sein müssen.An improvement is made with swiveling car aprons according to DE 101 15 990 C1 achieved, which are pivotable between a position parallel to the car floor in a position perpendicular to the car floor. An elevator car with a motor-pivotable car apron is for example in the DE 103 57 035 A1 described. There are also elevator cars with swivel car skirts known which are held by means of an electromagnet in the position parallel to the car. Furthermore, elevator cars are known with foldable car aprons. An elevator car with a car apron in the manner of a safety gate is in the DE 203 13 911 U1 described. The draft of DIN EN 81-21 stipulates that foldable car aprons must be locked in the folded position.

In der FR 2 841 886 A1 und der WO 2005/121015 A beschriebene Teleskop-Fahrkorbschürzen eines Aufzugfahrkorbs mit drei teleskopierbaren Platten befinden sich im Regelfall im ausgefahrenen Zustand. Wenn der Fahrkorb die unterste Etage erreicht, setzt die Teleskopschürze auf dem Schachtboden auf und wird durch die Bewegung des Fahrkorbs in den eingefahrenen Zustand zusammengeschoben. Infolge der geringen Höhe der eingefahrenen Schürze ist es den Aufzugfirmen und Architekten möglich, bei Neuanlagen die Schachtgrubentiefe wesentlich zu verringern. Ebenso ist eine Nachrüstung zur Erhöhung der Sicherheit bei bestehenden Aufzuganlagen mit geringer Schachtgrubentiefe möglich. Bei dieser bekannten Teleskopschürzen ist jedoch nachteilig, dass zum Einen durch den Aufprall auf den Schachtboden und das Zusammenschieben der einzelnen teleskopierbaren Platten eine Lärmbelästigung für die Fahrgäste entsteht und zum Anderen, dass bei jedem Zusammenschieben ein Verschleiß der mechanischen Komponenten der teleskopierbaren Schürze auftritt, welcher bei häufiger Nutzung des Aufzug beispielsweise in einem Kaufhaus oder Bürogebäude zu einem Defekt führen kann. Dies führt in ebenfalls nachteiliger Weise zu entsprechend kurzen Wartungsintervallen.In the FR 2 841 886 A1 and the WO 2005/121015 A described telescopic car aprons of an elevator car with three telescopic plates are usually in the extended state. When the car reaches the bottom floor, the telescopic apron sits on the shaft floor and is pushed together by the movement of the car in the retracted state. Due to the small height of the retracted apron, it is the lift companies and architects possible to significantly reduce the shaft pit depth in new plants. Likewise, retrofitting to increase the safety of existing elevator systems with low shaft pit depth is possible. In this known telescopic aprons, however, is disadvantageous that on the one hand by the impact on the shaft bottom and the pushing together of the individual telescopic plates noise pollution for the passengers arises and on the other hand, that at each collapse wear of the mechanical components of the telescopic apron occurs, which at frequent use of the elevator, for example, in a department store or office building can lead to a defect. This also leads disadvantageously to correspondingly short maintenance intervals.

Die EP 1 118 576 A2 beschreibt einen Aufzugfahrkorb mit einer Fahrkorbschürze, die als Teleskopschürze ausgebildet ist, deren einzelne Bestandteile vergleichbar mit der Fahrkorbschürze gemäß FR 2 841 886 A1 bei Auftreffen auf den Schachtboden oder mit Hilfe besonderer Antriebe ineinander oder nebeneinander verschoben werden. Beim Hochfahren des Fahrkorbes fallen die einzelnen Teile entweder schwerkraftbedingt , durch Federbeaufschlagung oder durch anderen Betätigungen wieder in ihre ausgefahrene Stellung. Bei großen Schürzenteilen ist vorgesehen, diese stets deaktiviert und in einer im wesentlichen waagerechten Ausrichtung in beliebiger mechanischer oder elektrischer Weise, z.B. mittels eines Haltemagneten in Schachtgrubenposition zu halten, wobei derart ausgebildete Schürzenteile nur im Bedarfsfall aktiviert werden, beispielsweise durch Schwerkraft oder dadurch, dass ein verwendeter Haltemagnet spannungslos geschaltet wird. Nach einer solchen Aktivierung besteht die Tendenz einer Lärmbelästigung, wenn große Schürzenteile beim Hochfahren des Fahrkorbes wieder in die ausgefahrene Stellung fallen.The EP 1 118 576 A2 describes an elevator car with a car apron, which is designed as a telescopic apron, the individual components comparable to the car apron according to FR 2 841 886 A1 be moved into each other or side by side when hitting the pit floor or with the help of special drives. When starting up the car, the individual parts fall back into their extended position either by gravity, by spring action or by other operations. For large apron parts is provided, this always disabled and keep in a substantially horizontal alignment in any mechanical or electrical manner, eg by means of a holding magnet in pit position, trained skirt parts are activated only when needed, for example, by gravity or in that a used holding magnet is de-energized. After such activation, there is a tendency for noise annoyance when large apron parts fall back into the extended position when the vehicle is raised.

Die in der JP 05 319746 A beschriebene Teleskop-Fahrkorbschürze hat den Vorteil, dass die geforderte Mindesthöhe von 750 mm mit zwei teleskopartig zusammenschiebbaren Teleskopelemente erreicht werden kann.
Bei dieser Fahrkorbschürze ist das untere Teleskopelement mittels eines handbetätigten Seils, das über ein im oberen Bereich der Fahrkorbschürze befindliche Rolle geführt ist, aus dem ausgefahrenen Zustand hochziehbar, wobei in dem hochgezogenen Zustand des unteren Teleskopelements zwei an der Oberseite desselben befindliche Verriegelungszapfen schnapperartig in im oberen Bereich der Fahrkorbschürze befindliche Verriegelungselemente einrasten, um die Fahrkorbschürze in dem eingefahrenen Zustand zu verriegeln. Zum Ausfahren der Fahrkorbschürze werden die beiden Verriegelungseinheiten jeweils unabhängig voneinander gelöst, wobei das Seil nur verzögert freigegeben werden darf, damit sichergestellt ist, dass die Bedienungsperson durch die Ausfahrbewegung des Schürzenelementes nicht zu Schaden kommt. Es könnte nämlich der Fall eintreten, dass die Bedienungsperson eine Verletzung am Fuß erleidet, wenn sie beim Herunterlassen der Fahrkorbschürze ihren Fuß unachtsam in den Fahrstuhlschacht hineinragen lässt. Bei unsachgemäßer Handhabung des Seiles besteht jedoch die Gefahr, dass die Schürze ungebremst nach unten fällt, was zu Verletzungen einer Bedienungsperson und zu Beschädigungen der Fahrkorbschürze führen kann.
The in the JP 05 319746 A described telescopic car apron has the advantage that the required minimum height of 750 mm can be achieved with two telescopically telescoping telescopic elements.
In this car apron, the lower telescopic member by means of a hand-operated cable, which is guided over a located in the upper part of the car apron roller, pulled up from the extended state, wherein in the raised state of the lower telescopic element two of the same upper locking pin snap-like in the upper Engage latch members located in the area of the car apron to lock the car apron in the retracted state. To extend the car apron, the two locking units are each released independently, the cable may be released only delayed, so as to ensure that the operator is not harmed by the extension movement of the apron element. In fact, it could happen that the operator suffers an injury to the foot if, when lowering the car apron, she carelessly projects her foot into the elevator shaft. Improper handling of the rope, however, there is a risk that the skirt falls unchecked down, which can lead to injury to an operator and damage to the car apron.

Der Erfindung liegt die Aufgabe zugrunde, eine gegenüber den bekannten Fahrkorbschürzen verbesserte Teleskop-Fahrkorbschürze zu schaffen.The invention has for its object to provide a comparison with the known car aprons improved telescopic car apron.

Diese Aufgabe wird gelöst mit den Merkmalen des Kennzeichens des Patentanspruchs 1, indem mittels des Dämpfungselementes eine schnelle und gefährdende Ausfahrbewegung verhindert wird und nur ein Entriegelungselement zur Entriegelung der Verriegelungsvorrichtung zu betätigen ist.This object is achieved with the features of the characterizing part of patent claim 1, by means of the damping element, a quick and dangerous extension movement is prevented and only one unlocking element to unlock the locking device is to be actuated.

Bei Vorhandensein von mindestens zwei Entriegelungselementen, die über eine mechanische Verbindung mit der Verriegelungsvorrichtung zusammenwirken, kann durch Betätigung nur eines Entriegelungselementes die Verriegelungsvorrichtung entriegelt werden, wodurch einerseits die Bedienung erleichtert wird und andererseits auch ein Kippen und damit mögliches Blockieren eines ausfahrbaren Teleskopelementes verhindert wird, was dann der Fall sein könnte, wenn zwei im Abstand voneinander liegende Verriegelungseinheiten jeweils unabhängig voneinander entriegelt werden müssen.In the presence of at least two unlocking elements, which interact via a mechanical connection with the locking device, the locking device can be unlocked by operating only one unlocking, whereby on the one hand the operation is facilitated and on the other hand, a tilting and thus blocking an extendable telescopic element is prevented, which then could be the case when two spaced apart locking units each have to be unlocked independently.

In Übereinstimmung mit JP 05 319 746 A besteht ein Grundgedanke der Erfindung darin, eine mehrteilige, insbesondere dreiteilige Teleskop-Fahrkorbschürze derart auszugestalten, dass die im Normalfall eingezogene Schürze nur im Bedarfsfall manuell ausgefahren wird. Im Fall eines Stehenbleibens des Aufzuges und nicht bündiger Stellung des Fahrkorbausstiegs mit der Haltestelle soll die Schürze eingefahren sein. Aus diesem Grund weist die Fahrkorbschürze eine Verriegelungsvorrichtung auf, welche die Fahrkorbschürze im eingefahrenen Zustand gegen ein Ausfahren verriegelt. Im Bedarfsfall kann die Schürze von einem fachkundigen Bediener, welcher die eingeschlossenen Fahrgäste befreit, heruntergelassen werden, so dass sie in den ausgefahrenen Zustand übergeht. Anschließend können die Fahrgäste den Fahrkorb gefahrlos verlassen. Es muss jedoch sichergestellt sein, dass der Bediener durch die Ausfahrbewegung der Schürzenelemente nicht zu Schaden kommt. Es könnte nämlich der Fall eintreten, dass der Bediener eine Verletzung am Fuß erleidet, wenn er seinen Fuß unachtsam in den Fahrstuhlschacht hereinragen lässt und gleichzeitig die Schürze herunterlässt. Um dies zu vermeiden, weist die erfindungsgemäße Fahrkorbschürze ein Dämpfungselement auf, welches die Bewegung vom eingefahrenen in den ausgefahrenen Zustand bremst und damit eine schnelle und gefährdende Ausfahrbewegung verhindert.In accordance with JP 05 319 746 A It is a basic idea of the invention to design a multi-part, in particular three-part, telescopic car apron in such a way that the apron, which is normally pulled in, is extended manually only when necessary. In the case of a stop of the elevator and not flush position of the car exit with the stop the apron should be retracted. For this reason, the car apron on a locking device which locks the car apron in the retracted state against an extension. If necessary, the apron can be lowered by a skilled operator, who frees the trapped passengers, so that it goes into the extended state. Afterwards, the passengers can safely leave the car. However, it must be ensured that the operator is not harmed by the extension movement of the skirt elements. It could be the case that the Operator suffers an injury to the foot, if he carelessly let his foot into the elevator shaft and at the same time let down the apron. In order to avoid this, the car apron according to the invention has a damping element which brakes the movement from the retracted to the extended state and thus prevents a rapid and dangerous extension movement.

Das an dem Aufzugfahrkorb befestigte obere Teleskopelement als nicht verschiebbares Basiselement überdeckt im eingefahrenen Zustand der Fahrkorbschürze die anderen verschiebbaren Teleskopelemente. Das Restrisiko, dass eingeschlossene Personen bei nicht bündig stehendem Fahrkorb versuchen, sich selbst zu befreien, kann ferner durch entsprechende mehrsprachige und durch Piktogramme unterstützte Wamhinweise, welche an der Innenseite aller Schachtüren in unmittelbarer Nähe der Schachtürentriegelung und an der Fahrkorbschürze gut sichtbar angeordnet werden, erheblich minimiert werden.The attached to the elevator car upper telescopic element as non-displaceable base element covers in the retracted state of the car apron, the other movable telescopic elements. The residual risk that trapped persons attempt to free themselves when the car is not flushed can also be significantly enhanced by appropriate multilingual and pictogram-supported wam hints, which are clearly visible on the inside of all the bay doors in the immediate vicinity of the shaft door latch and the car apron be minimized.

Das Dämpfungselement sollte vorzugsweise mit dem Basiselement und dem untersten Teleskopelement verbunden sein, damit die gesamte Ausfahrbewegung gebremst wird. Es ist auch denkbar, dass Dämpfungselemente zwischen den einzelnen Teleskopelementen angeordnet sind. Das Dämpfungselement ist vorteilhafterweise mit dem Basiselement oder dem untersten Teleskopelement verschwenkbar verbunden, insbesondere wenn das Dämpfungselement nicht parallel zur Ausfahrrichtung angeordnet ist. In bevorzugten Ausführungen umfasst das Dämpfungselement einen Hydraulik- oder Pneumatikzylinder.The damping element should preferably be connected to the base element and the lowest telescopic element, so that the entire extension movement is braked. It is also conceivable that damping elements are arranged between the individual telescopic elements. The damping element is advantageously pivotably connected to the base element or the lowest telescopic element, in particular if the damping element is not arranged parallel to the extension direction. In preferred embodiments, the damping element comprises a hydraulic or pneumatic cylinder.

Bevorzugt hat jedes Verriegelungselement einen Haken, welcher im verriegelten Zustand mit einem Zapfen des Verriegelungsorgans zusammenwirkt.Preferably, each locking element has a hook which cooperates in the locked state with a pin of the locking member.

Das Entriegelungselement kann insbesondere am Basiselement angeordnet sein, da dieses im Regelfall im eingefahrenen Zustand der Fahrkorbschürze die anderen Teleskopelemente verdeckt. Zur manuellen Entriegelung kann das Entriegelungselement mittels eines Mehrkantschlüssels, insbesondere eines normgerechten Dreikantschlüssels für Aufzugschachttüren, betätigbar sein.The unlocking element can be arranged in particular on the base element, since this normally covers the other telescopic elements in the retracted state of the car apron. For manual unlocking the unlocking can be actuated by means of a polygonal key, in particular a standard triangular key for elevator shaft doors.

In einer besonders bevorzugten Ausgestaltung sind das Entriegelungselement und das Verriegelungselement in einem insbesondere federbelasteten Mehrkantschloss, insbesondere Dreikantschloss, zusammengeführt.In a particularly preferred embodiment, the unlocking element and the locking element in a particular spring-loaded polygonal lock, in particular Dreikantschloss, merged.

Bevorzugt weist die Fahrkorbschürze des Aufzugfahrkorbs mindestens zwei Entriegelungselemente auf, welche über die mechanische Verbindung, insbesondere über ein Gestänge, mit der Verriegelungsvorrichtung zusammenwirken. Die Entriegelungselemente können am Basiselement senkrecht zur Ausfahrrichtung im Abstand voneinander angeordnet sein. Dies ist vorteilhaft, um dem Bediener die Arbeit dahingehend zu erleichtern, dass er nur das ihm am nächsten liegende Entriegelungselement betätigen muss, um die Verriegelungsvorrichtung zu entriegeln. Er braucht die Schachttür nur minimal zu öffnen, beispielsweise nur um einen Spalt von ca. 15 cm Breite, weil es auf Grund der Anordnung der Entriegelungselemente unerheblich ist, ob es sich um eine links-, recht- oder zentralschließende Schachtüre handelt. Vorzugsweise wird folglich ein Entriegelungselement im linken, eines im rechten und eines im mittleren Bereich des Basiselements angeordnet. Die Gefahr eines Sturzes des Bedieners in den Schacht wird somit minimiert.Preferably, the car apron of the elevator car on at least two unlocking elements, which interact via the mechanical connection, in particular via a linkage, with the locking device. The unlocking elements can be arranged on the base element perpendicular to the extension direction at a distance from each other. This is advantageous in order to facilitate the work of the operator so that he only has to operate the unlocking element closest to him in order to unlock the locking device. He needs only slightly open the landing door, for example, only a gap of about 15 cm wide, because it is irrelevant due to the arrangement of the unlocking, whether it is a left, right or central closing shaft door. Preferably, therefore, an unlocking element is arranged in the left, one in the right and one in the central region of the base member. The risk of a fall of the operator in the shaft is thus minimized.

Jedes Teleskopelement kann über zwei, vorzugsweise seitlich angeordnete Teleskopschiene mit jeweils dem unteren Teleskopelement verbunden sein. Durch diese Teleskopschienen, welche beispielsweise nach Art bekannter Schubladenauszüge gestaltet sein können, wird eine sichere Führung der Teleskopelemente erreicht. Es ist auch denkbar, dass das Dämpfungselement in den Schienen integriert ist.Each telescopic element can be connected via two, preferably laterally arranged telescopic rail, each with the lower telescopic element. Through these telescopic rails, which may be designed, for example, in the manner of known drawer slides, a secure guidance of the telescopic elements is achieved. It is also conceivable that the damping element is integrated in the rails.

Damit im ausgefahrenen Zustand nicht die gesamte Gewichtslast der Teleskopelemente auf den Schienen liegt, kann jedes Teleskopelement mindestens einen Anschlag aufweisen, welcher im ausgefahrenen Zustand der Fahrkorbschürze gegen einen Anschlag des jeweils darunter liegenden Teleskopelements anschlägt.So that in the extended state not the entire weight load of the telescopic elements lies on the rails, each telescopic element may have at least one stop, which abuts in the extended state of the car apron against a stop of each underlying telescopic element.

Um eine Bewegung des Fahrkorbes bei nicht eingefahrener Fahrkorbschürze und eingeschalteter Aufzuganlage zu verhindern, ist an der Schürze eine elektrische Überwachung montiert, und zwar vorzugsweise in Form eines am Basiselement in einer solchen Höhe angeordneten Schalters, dass dieser im eingefahrenen Zustand der Fahrkorbschürze von dem untersten Teleskopelement betätigbar ist.In order to prevent movement of the car when the car apron is not retracted and the elevator system is switched on, electrical monitoring is mounted on the apron, preferably in the form of a switch arranged on the base element at such a height that it is in the retracted state of the car apron of the lowermost telescopic element is operable.

Die Erfindung betrifft ferner einen Aufzugfahrkorb, der mit einer erfindungsgemäßen Fahrkorbschürze ausgerüstet ist. Der Aufzugfahrkorb kann zur Verhinderung eines Verschwenkens der Schürze und zur Stabilisierung mindestens eine Stützstrebe aufweisen, die mit ihrem einen Ende an der Unterseite oder Seitenwand des Aufzugfahrkorbs befestigt ist und deren anderes Ende an dem Basiselement befestigt ist.The invention further relates to an elevator car which is equipped with a car apron according to the invention. The elevator car may include at least one support strut to prevent pivoting of the apron and for stabilization, which is secured with its one end to the underside or side wall of the elevator car and the other end is secured to the base member.

Ein mögliches bevorzugtes Ausführungsbeispiel der Erfindung ist in den Figuren 1 bis 4 beschrieben. Es zeigen:

Fig. 1
die Fahrkorbschürze eines Aufzugfahrkorbes in der Vorderansicht im eingefahrenen Zustand
Fig. 2
die Fahrkorbschürze gemäß Fig. 1 im ausgefahrenen Zustand
Fig. 3
die Fahrkorbschürze gemäß Fig. 1 in der Rückansicht
Fig. 4
die Fahrkorbschürze gemäß Fig. 3 im ausgefahrenen Zustand
A possible preferred embodiment of the invention is in the FIGS. 1 to 4 described. Show it:
Fig. 1
the car apron of an elevator car in the front view in the retracted state
Fig. 2
the car apron according to Fig. 1 in the extended state
Fig. 3
the car apron according to Fig. 1 in the rear view
Fig. 4
the car apron according to Fig. 3 in the extended state

Die Figuren 1 bis 4 zeigen eine Fahrkorbschürze 1 in perspektivischer Darstellung. Die Fahrkorbschürze 1 weist ein plattenförmiges, bevorzugt aus Blech bestehendes Basiselement 10 sowie zwei weitere aus einem Metallblech hergestellte Teleskopelemente 11 und 12 auf. Im eingefahrenen Zustand (Fig.1) überdeckt das Basiselement 10 weitgehend die Teleskopelemente 11 und 12. Das Basiselement 10 ist mittels der Befestigungsvorrichtungen 17 sowie der Stützstrebe 14, welche ein Verschwenken der Schürze 1 verhindert und eine Stabilisierung bewirkt, an dem Aufzugfahrkorb 2 befestigt.The FIGS. 1 to 4 show a car apron 1 in a perspective view. The car apron 1 has a plate-shaped, preferably made of sheet metal base member 10 and two further made of a metal sheet telescopic elements 11 and 12. In retracted state ( Fig.1 The base element 10 largely covers the telescopic elements 11 and 12. The base element 10 is fastened to the elevator car 2 by means of the fastening devices 17 and the support strut 14, which prevents pivoting of the skirt 1 and causes stabilization.

Im eingefahrenen Zustand greifen zwei am Basiselement 10 angeordnete und als Schwenkhaken ausgebildete Verriegelungselemente 3a und 3c in zwei am untersten Teleskopelement 12 angeordnete und als Zapfen ausgebildete Verriegelungsorgane 5a und 5c ein, wodurch der eingefahrene Zustand verriegelt ist. Zum Entriegeln der Verriegelung sind drei nur schematisch angedeutete Entriegelungselemente 16a, 16b und 16c vorgesehen. Die Entriegelungselemente 16a, 16b und 16c weisen ein Dreikantprofil auf und können mittels eines Dreikantschlüssels gegen die Kraft einer nicht dargestellten Feder von außen manuell betätigt werden. Durch drehende Betätigung der Entriegelungselemente 16a, 16b oder 16c werden die Schwenkhaken 3a und 3c verschwenkt und geben die Verriegelungsorgane 5a und 5c und somit die Teleskopelemente 11 und 12 frei. Das Entriegelungselement 16a und das Verriegelungselement 3a sowie das Entriegelungselement 16c und das Verriegelungselement 3c sind somit in jeweils einem federbelasteten Dreikantschloss zusammengeführt, wobei die Feder innerhalb des Dreikantschlosses angeordnet ist.In the retracted state, two locking elements 3a and 3c arranged on the base element 10 and designed as pivoting hooks engage in two locking elements 5a and 5c arranged on the lowermost telescopic element 12 and designed as pins, whereby the retracted state is locked. To unlock the lock three only schematically indicated unlocking elements 16a, 16b and 16c are provided. The unlocking 16a, 16b and 16c have a triangular profile and can be manually operated by means of a triangular wrench against the force of a spring, not shown from the outside. By rotating actuation of the unlocking 16a, 16b or 16c, the pivot hooks 3a and 3c are pivoted and give the locking members 5a and 5c and thus the telescopic elements 11 and 12 free. The unlocking element 16a and the locking element 3a and the unlocking element 16c and the locking element 3c are thus brought together in each case a spring-loaded Dreikantschloss, wherein the spring is disposed within the triangular lock.

Die Verriegelungselemente 3a und 3c sind durch ein Gestänge 6 miteinander verbunden. Somit ist es möglich, dass nur eines der Entriegelungselemente 16a, 16b und 16c betätigt werden muss, um die Verriegelungsvorrichtung zu entriegeln. Das Entriegelungselement 16b ist über den Mitnehmer 19 mit dem Gestänge 6 mechanisch verbunden.The locking elements 3a and 3c are interconnected by a linkage 6. Thus, it is possible that only one of the unlocking elements 16a, 16b and 16c must be operated to unlock the locking device. The unlocking element 16b is mechanically connected to the linkage 6 via the driver 19.

Wenn die Teleskopelemente 11 und 12 freigegeben sind, können sie sich durch die Schwerkraft nach unten bewegen. Sie werden hierbei durch schematisch angedeutete Teleskopschienen 15, welche sich an beiden Seiten der Teleskopelemente 10, 11 und 12 befinden, geführt. Damit die Ausfahrbewegung nicht zu schnell erfolgt, wird sie mittels eines als Dämpfungselement wirkenden Pneumatik- oder Hydraulikzylinders 4 gebremst. Dieser ist schwenkbar an dem untersten Teleskopelement 12 und mittels des Schwenklager 18 an dem Basiselement 10 ausgelenkt. Das unterste Teleskopelement 12 weist eine horizontal zur Ausfahrrichtung liegende Abschlussfläche 13 auf.When the telescopic elements 11 and 12 are released, they can move downwards by gravity. You are here by schematically indicated Telescopic rails 15, which are located on both sides of the telescopic elements 10, 11 and 12, out. So that the extension movement does not take place too fast, it is braked by means of a pneumatic or hydraulic cylinder 4 acting as a damping element. This is pivotally deflected on the lowermost telescopic element 12 and by means of the pivot bearing 18 on the base element 10. The lowermost telescopic element 12 has a horizontal end face 13 extending to the extension direction.

Die Teleskopelemente 11 und 12 fahren solange aus, bis die Anschläge 8a und 8b des Basiselements 10 und des Teleskopelements 11 gegen die Anschläge 9a und 9b der Teleskopelemente 11 und 12 zur Anlage kommen.The telescopic elements 11 and 12 extend until the stops 8a and 8b of the base element 10 and of the telescopic element 11 come to rest against the stops 9a and 9b of the telescopic elements 11 and 12.

Um eine Bewegung des Fahrkorbes 2 bei nicht eingefahrener Fahrkorbschürze 1 und eingeschalteter Aufzuganlage zu verhindern, ist an der Fahrkorbschürze 1 eine elektrische Überwachung montiert. Hierzu dient ein am Basiselement 10 angeordnetes elektrisches Schaltelement 7, welches bei eingefahrener Fahrkorbschürze 1 durch das untere Teleskopelement 12 betätigt wird.In order to prevent movement of the elevator car 2 when the car apron 1 is not retracted and the elevator system is switched on, an electric monitor is mounted on the car apron 1. This purpose is served by an electric switching element 7 arranged on the base element 10, which is actuated by the lower telescopic element 12 when the car apron 1 is retracted.

Die Verriegelungselemente 3a und 3c weisen jeweils eine Anschrägung 20a und 20c auf, welche es ermöglichen, dass beim manuellen Zurückbewegen der Teleskopelemente 11 und 12 die Verriegelungsorgane 5a und 5c wieder in die federbelasteten Dreikantschlösser automatisch einrasten können.The locking elements 3a and 3c each have a chamfer 20a and 20c, which make it possible for the manual retraction of the telescopic elements 11 and 12, the locking members 5a and 5c can automatically engage in the spring-loaded Dreikantschlösser again.

Claims (13)

  1. Elevator cage with a three-part telescoping cage apron (1) containing
    - three essentially plate-shaped telescoping elements (10, 11, 12), which are movable from a retracted position into an extended condition, whereby the upper telescoping element is a basis element (10) fixed unmovably to the elevator cage (2), which basis element in the retracted condition of the elevator cage apron essentially overlaps the other telescoping elements which are movable relatively to the basis element
    - a manually operated locking device, which interlocks the cage apron in the retracted condition and contains at least one locking element (3a and 3c, respectively) fixed to the basis element, and at least one locking unit (5a and 5c, respectively), which is fixed to the lowermost telescoping element (11) and which in the locked condition of the cage apron (1) meshes with the locking element (3a and 3c, respectively) and
    - an element which affects the moving out motion of the cage apron
    characterised in that the element for affecting the moving out motion of the cage apron is a damping element (4) which slows down the moving out motion of the cage apron and that at least one unlocking element (16) is provided for unlocking the locking unit.
  2. Elevator cage according to claim 1, characterised in that the damping element (4) is connected with the basis element (10) and the lowermost telescoping element (2).
  3. Elevator cage according to claim 2, characterised in that the damping element (4) is connected pivotally with the basis element (10) or the lowermost telescoping element (12).
  4. Elevator cage according to one of the claims 1 to 3, characterised in that damping element (4) contains an hydraulic or a pneumatic cylinder.
  5. Elevator cage according to claim 1, characterised in that each locking element (3a and 3c, respectively) is designed in the form of a swivel hook, which in the locked condition interacts with a locking unit (5a and 5c, respectively), which is designed in the form of a pin.
  6. Elevator cage according to one of the claims 1 to 5, characterised in that an unlocking element is arranged at the basis element (10).
  7. Elevator cage according to one of the claims 1 to 6, characterised in that that unlocking elements (16a, 16b, 16c) are arranged at the basis element (10) at intervals from one another.
  8. Elevator cage according to claim 1, characterised in that the lowermost telescoping element (12) has an end surface (13) directed horizontally with respect to the moving out direction.
  9. Elevator cage according to claim 1, characterised in that each telescoping element (10, 11) contains at least one limit stopper (8), which - in the extended condition of the cage apron (1) - strikes against a limit stopper (9) of the respective telescoping element (11, 12), which is situated beneath each of the telescoping element (10, 11) equipped with the limit stopper (9).
  10. Elevator cage according to claim 1, characterised by a switch element (7) which is arranged on the basis element (10) in such a height, that the switch element (7) is actuated in the retracted condition of the cage apron (1) by the lowermost telescoping element (12).
  11. Elevator cage according to claim 10, characterised in that the unlocking element (16) and the locking element (3a and 3c, respectively) are combined within a particularly spring loaded multi-sided lock, especially triangular lock.
  12. Elevator cage according to claim 11, characterised in that it contains at least two unlocking elements (16) which by means of a mechanical linkage (6) cooperate with the locking device in such a way that by actuating of one unlocking element the locking device is released.
  13. Elevator cage according to claim 7, characterised in that each telescoping element (10, 11) is connected with the telescoping element (11, 12) situated beneath one of the telescoping element (10, 11), by means of two laterally arranged telescoping bars (15).
EP07004218.9A 2006-05-13 2007-03-01 Lift cage Active EP1854758B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07004218T PL1854758T3 (en) 2006-05-13 2007-03-01 Lift cage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006022407A DE102006022407B3 (en) 2006-05-13 2006-05-13 Elevator cabin three-part telescopic apron has a damper to reduce noise levels, when moving from the retracted to the extended position

Publications (2)

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EP1854758A1 EP1854758A1 (en) 2007-11-14
EP1854758B1 true EP1854758B1 (en) 2015-11-18

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DE202007013602U1 (en) 2007-09-27 2009-02-12 W+W Aufzugkomponenten Gmbh U. Co. Kg Elevator car
DE102007046577A1 (en) 2007-09-27 2009-04-02 W+W Aufzugkomponenten Gmbh U. Co. Kg Telescopic apron for a lift car
FR2951148B1 (en) * 2009-10-09 2012-09-07 Prudhomme Sa HUNTING FOOT FOR ELEVATOR AND ITS DEPLOYMENT METHOD
EP3003947B1 (en) * 2013-06-05 2018-10-03 Otis Elevator Company Retractable toe guard assembly for an elevator system
EP3257803B1 (en) * 2016-06-15 2019-11-13 Otis Elevator Company Elevator car and elevator system
KR101939656B1 (en) * 2017-06-22 2019-01-17 주식회사 더원 Apron Structure for Elevator
CN108373093B (en) * 2017-11-09 2024-04-09 杭州优迈科技有限公司 Foot guard device with adjustable height
ES2902335T3 (en) 2018-02-23 2022-03-28 Otis Elevator Co Elevator cabin feet protector system
EP3608281B1 (en) 2018-08-06 2021-11-10 Otis Elevator Company Elevator car apron
EP3608282B1 (en) 2018-08-10 2022-06-22 Otis Elevator Company Elevator car apron
EP3608283B1 (en) * 2018-08-10 2022-02-16 Otis Elevator Company Elevator car apron
WO2021063608A1 (en) * 2019-09-30 2021-04-08 Inventio Ag Lift installation

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PL1854758T3 (en) 2016-05-31
EP1854758A1 (en) 2007-11-14
ES2561156T3 (en) 2016-02-24
DE102006022407B3 (en) 2007-08-23

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