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EP2039644B1 - Lift car - Google Patents

Lift car Download PDF

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Publication number
EP2039644B1
EP2039644B1 EP08008803A EP08008803A EP2039644B1 EP 2039644 B1 EP2039644 B1 EP 2039644B1 EP 08008803 A EP08008803 A EP 08008803A EP 08008803 A EP08008803 A EP 08008803A EP 2039644 B1 EP2039644 B1 EP 2039644B1
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EP
European Patent Office
Prior art keywords
telescopic elements
lift cage
oblique portions
cage according
car
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Active
Application number
EP08008803A
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German (de)
French (fr)
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EP2039644A1 (en
Inventor
Georg Wallraff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
W+w Aufzugkomponenten U Co KG GmbH
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W+w Aufzugkomponenten U Co KG GmbH
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Publication of EP2039644A1 publication Critical patent/EP2039644A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/24—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
    • B66B13/28—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers between car or cage and wells
    • B66B13/285—Toe guards or apron devices

Definitions

  • the invention relates to an elevator car having a multi-part telescopic car apron with a plurality of substantially plate-shaped telescopic elements, which can be converted from a retracted state to an extended state, wherein a plate-shaped telescopic element by a downwardly and rearwardly located plate portion, hereinafter referred bevel, is extended.
  • Car aprons of elevator car baskets are intended to prevent persons from falling into the elevator shaft in the event of an elevator car parked between two floors and to be damaged if the elevator door is opened to release persons. For this reason, an apron is attached to the underside of the car, for example, according to DIN EN 81-1, 8.4: 1998 a skirt minimum height of 750 mm is required. Then, below each car threshold, there must be an apron in the width of the associated landing door, with the vertical part of the skirt being extended downwards by a chamfer whose angle with respect to the horizontal is at least 60 °. The projection of this chamfer on a horizontal plane must not be smaller than 20 mm according to this DIN.
  • This bevel serves as a deflector to avoid foot injuries caused by the passing elevator, if the shaft door is not properly locked, for example, in the ground area and inadvertently protrude into the shaft with his foot waiting for the elevator in front of the shaft door.
  • An Indian WO 2005/121015 A2 illustrated elevator car is provided with a two-part telescopic car apron, in which the first attached to the car telescopic element is extended by a back and down directed bevel.
  • the invention is based on the object, in an effort to reduce the pit height of an elevator system, to reduce the height of the retracted car apron in a lift car while taking into account the applicable for the chamfer of the car apron standard.
  • the elevator car according to the invention is characterized in that the car apron has at least three plate-shaped telescopic elements, of which at least two telescopic elements have a downward and rearward extending chamfer, and that the chamfers are inclined relative to the horizontal at the same angle and lie in the retracted state of the car apron in a common plane.
  • the overall height of the skirt can be shortened in the retracted state, wherein even in the centimeter range lying reductions of Cab apron already lead to significant benefits when retooling or the initial installation of an elevator system, especially in the field pit.
  • FIG. 1 schematically shows a car 2 with attached car apron 1, consisting of four telescopically telescoping plate-shaped telescopic elements 10, 11, 12 and 13, of which the uppermost and outer telescopic element 10 is attached in the region of the threshold 2.1 of the car 2, the substructure 2.2 is indicated schematically.
  • FIG. 2 has the bottom skirt 13 at its lower end a downwardly and rearwardly directed bevel 13.1, followed by a horizontally rearwardly facing bevel 13.2.
  • the skirt 12 also has at its lower end a downwardly and rearwardly directed bevel 12.1.
  • FIG. 4 Different variants are shown in the area of the chamfer of a car apron 1 with a chamfer angle of about 60 °.
  • Complex a shows a four-part telescopic car apron, in which according to the prior art, only a single bevel 13.1 is arranged in the region of the plate-shaped telescopic element 13, which is in the installed state inside and occupies the lowest position in the extended state of the telescopic car apron.
  • Complex b shows a car apron according to the FIGS. 1, 2 and 3 with bevels 12.1 and 13.1 at the lower ends of the telescopic elements 12 and 13th
  • Complex C shows a car apron in which bevels 11.1 and 12.1 are arranged on the telescopic elements 11 and 12, respectively.
  • the telescopic elements 10, 11 and 12 are each provided with chamfers 10.1 or 11.1 or 12.1.
  • the two outer telescopic elements 10 and 11 have at their lower ends the bevels 10.1 and 11.1, respectively.
  • FIG. 4 clearly shows how dividing a single state-of-the-art chamfering complex a into two or three chamfer sections reduces the height of the car apron when retracted, maintaining the required standards whereby the total chamfer is angled relative to the horizontal of at least 60 ° and the projection of this bevel on a horizontal plane has a width of at least 20 mm.
  • the lines A, B, C, and D indicate how the height of a retracted car apron having four panel members can be reduced by dividing the taper into two or more panel members.

Landscapes

  • Cage And Drive Apparatuses For Elevators (AREA)
  • Elevator Control (AREA)
  • Types And Forms Of Lifts (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Abstract

The cage (2) has a multiple-part telescopic cage toe guard (1) including a set of panel-shaped inner and outer telescopic elements (10-13) that is moved from a retracted condition to an extended condition. Oblique portions (13.1, 13.2) of one of the outer telescopic elements form an angle with respect to a horizontal axis in the retracted condition of the cage toe guard. The oblique portions projected over a horizontal plane have a minimum width.

Description

Die Erfindung betrifft einen Aufzugsfahrkorb, der eine mehrteilige Teleskop-Fahrkorbschürze mit mehreren im wesentlichen plattenförmigen Teleskopelementen aufweist, welche aus einem eingefahrenen Zustand in einen ausgefahrenen Zustand überführbar sind, wobei ein plattenförmigens Teleskopelement durch einen nach unten und hinten liegenden Plattenabschnitt, im folgenden Abschrägung genannt, verlängert ist.The invention relates to an elevator car having a multi-part telescopic car apron with a plurality of substantially plate-shaped telescopic elements, which can be converted from a retracted state to an extended state, wherein a plate-shaped telescopic element by a downwardly and rearwardly located plate portion, hereinafter referred bevel, is extended.

Fahrkorbschürzen von Aufzugsfahrkörben sollen verhindern, dass Personen im Falle eines zwischen zwei Etagen stehengebliebenen Aufzugsfahrkorbes in den Aufzugsschacht fallen und dabei Schaden nehmen, wenn zur Befreiung von Personen die Aufzugstür geöffnet wird. Aus diesem Grund ist an der Unterseite des Fahrkorbs eine Schürze angebracht, für die z.B. gemäß DIN EN 81-1, 8.4:1998 eine Schürzenmindesthöhe von 750 mm gefordert ist. Danach muss unterhalb jeder Fahrkorbschwelle eine Schürze in der Breite der zugeordneten Schachttür vorhanden sein, wobei der senkrechte Teil der Schürze nach unten durch eine Abschrägung verlängert sein muss, deren Winkel gegenüber der Waagerechten mindestens 60° beträgt. Die Projektion dieser Abschrägung auf eine waagerechte Ebene darf entsprechend dieser DIN nicht kleiner als 20 mm sein. Diese Abschrägung dient als Abweiser, um Fußverletzungen durch den vorbeifahrenden Aufzug zu vermeiden, wenn die Schachttür beispielsweise im Bodenbereich nicht richtig verriegelt ist und Personen, die vor der Schachttür auf den Aufzug warten, versehentlich mit dem Fuß in den Schacht hineinragen.Car aprons of elevator car baskets are intended to prevent persons from falling into the elevator shaft in the event of an elevator car parked between two floors and to be damaged if the elevator door is opened to release persons. For this reason, an apron is attached to the underside of the car, for example, according to DIN EN 81-1, 8.4: 1998 a skirt minimum height of 750 mm is required. Then, below each car threshold, there must be an apron in the width of the associated landing door, with the vertical part of the skirt being extended downwards by a chamfer whose angle with respect to the horizontal is at least 60 °. The projection of this chamfer on a horizontal plane must not be smaller than 20 mm according to this DIN. This bevel serves as a deflector to avoid foot injuries caused by the passing elevator, if the shaft door is not properly locked, for example, in the ground area and inadvertently protrude into the shaft with his foot waiting for the elevator in front of the shaft door.

Bei in der DE 10 2006 022 407 B3 und der FR 2 841 886 A1 beschriebenen Teleskop-Fahrkorbschürzen gemäß dem Oberbegriff des Patentanspruchs 1 befinden sich die Abschrägungen an dem im ausgefahrenen Zustand untersten Teleskopelement. Damit ist eine bestimmte Höhe der eingefahrenen Fahrkorbschürze vorgegeben bzw. bestimmt, was zur Aufnahme der eingefahrenen Fahrkorbschürze, wenn sich der Fahrkorb in der untersten Haltestelle befindet, eine entsprechende Tiefe der Schachtgrube der Aufzugsanlage voraussetzt, die insbesondere bei bereits vorhandenen Aufzugsanlagen häufig nicht vorliegt. Bei der Umrüstung einer Aufzugsanlage sind daher häufig Stemmarbeiten im Bodenbereich der Schachtgrube notwendig, um die erforderliche Tiefe der Schachtgrube zu erreichen.In the DE 10 2006 022 407 B3 and the FR 2 841 886 A1 described telescopic car aprons according to the preamble of claim 1 are the bevels on the lowest in the extended state telescopic element. Thus, a certain amount of the retracted car apron is predetermined or determined, which requires the inclusion of the retracted car apron, when the car is in the lowest station, a corresponding depth of the pit of the elevator system, which is often not present especially in existing elevator systems. When retrofitting an elevator system therefore often cemming in the bottom area of the pit are necessary to achieve the required depth of the pit.

Ein in der WO 2005/121015 A2 dargestellter Aufzugsfahrkorb ist mit einer zweiteiligen Teleskop-Fahrkorbschürze versehen, bei der das erste an dem Fahrkorb befestigte Teleskopelement durch einen nach hinten und unten gerichtete Abschrägung verlängert ist. An den unteren Rand des zweiten Teleskopelements, der im eingefahrenen Zustand der Fahrkorbschürze mit Abstand unter dem unteren Rand des ersten Teleskopelements liegt, schließt eine waagerechte nach hinten ausgerichtete Leiste an, was zu den gleichen, oben beschriebenen Nachteilen führt.An Indian WO 2005/121015 A2 illustrated elevator car is provided with a two-part telescopic car apron, in which the first attached to the car telescopic element is extended by a back and down directed bevel. At the lower edge of the second telescopic element, which lies in the retracted state of the car apron at a distance below the lower edge of the first telescopic element, includes a horizontal rear-facing bar, resulting in the same disadvantages described above.

Der Erfindung liegt die Aufgabe zugrunde, in dem Bestreben, die Schachtgrubenhöhe einer Aufzugsanlage zu verringern, bei einem Aufzugsfahrkorb die Höhe der eingefahrenen Fahrkorbschürze bei gleichzeitiger Berücksichtigung der für die Abschrägung der Fahrkorbschürze geltenden Norm zu verkürzen.The invention is based on the object, in an effort to reduce the pit height of an elevator system, to reduce the height of the retracted car apron in a lift car while taking into account the applicable for the chamfer of the car apron standard.

Zur Lösung dieser Aufgabe ist der erfindungsgemäße Aufzugsfahrkorb dadurch gekennzeichnet, dass die Fahrkorbschürze mindestens drei plattenförmige Teleskopelemente aufweist, von denen mindestens zwei Teleskopelemente eine nach unten und hinten gerichtete verlängernde Abschrägung aufweisen, und dass die Abschrägungen gegenüber der Waagerechten unter dem gleichen Winkel schräg gestellt sind und im eingefahrenen Zustand der Fahrkorbschürze in einer gemeinsamen Ebene liegen.To solve this problem, the elevator car according to the invention is characterized in that the car apron has at least three plate-shaped telescopic elements, of which at least two telescopic elements have a downward and rearward extending chamfer, and that the chamfers are inclined relative to the horizontal at the same angle and lie in the retracted state of the car apron in a common plane.

Dadurch, das die erforderliche Abschrägung auf mindestens zwei plattenförmige Teleskopelemente verteilt ist, kann die Gesamthöhe der Schürze im eingefahrenen Zustand verkürzt werden, wobei selbst im Zentimeterbereich liegende Verringerungen der Fahrkorbschürze bereits zu beträchtlichen Vorteilen beim Umrüsten oder der Erstinstallation einer Aufzugsanlage insbesondere im Bereich der Schachtgrube führen.Due to the fact that the required chamfer is distributed on at least two plate-shaped telescopic elements, the overall height of the skirt can be shortened in the retracted state, wherein even in the centimeter range lying reductions of Cab apron already lead to significant benefits when retooling or the initial installation of an elevator system, especially in the field pit.

Die Erfindung wird im folgenden anhand der Zeichnungen näher beschrieben.

  • Figur 1 zeigt in vereinfachter Darstellung einen Aufzugsfahrkorb mit einer an der Fahrkorbschwelle befestigten Fahrkorbschürze im ausgefahrenen Zustand;
  • Figur 2 zeigt die Fahrkorbschürze im eingefahrenen Zustand;
  • Figur 3 zeigt in vergrößerter Darstellung ein Detail aus Figur 2;
  • Figur 4 zeigt am Beispiel einer vierteiligen Teleskopschürze eine schematisierte Gegenüberstellung verschiedener Varianten, bei denen die erfindungsgemäße Lösung verwirklicht ist.
The invention will be described in more detail below with reference to the drawings.
  • FIG. 1 shows in a simplified representation of an elevator car with an attached to the car threshold car apron in the extended state;
  • FIG. 2 shows the car apron in the retracted state;
  • FIG. 3 shows an enlarged view of a detail FIG. 2 ;
  • FIG. 4 shows the example of a four-part telescopic apron a schematic comparison of different variants in which the solution according to the invention is realized.

Figur 1 zeigt schematisiert dargestellt einen Fahrkorb 2 mit daran befestigter Fahrkorbschürze 1, bestehend aus vier teleskopartig ineinander schiebbaren plattenförmigen Teleskopelementen 10, 11, 12 und 13, von denen das oberste und außen liegende Teleskopelement 10 im Bereich der Schwelle 2.1 des Fahrkorbs 2 befestigt ist, dessen Unterkonstruktion 2.2 schematisch angedeutet ist. FIG. 1 schematically shows a car 2 with attached car apron 1, consisting of four telescopically telescoping plate-shaped telescopic elements 10, 11, 12 and 13, of which the uppermost and outer telescopic element 10 is attached in the region of the threshold 2.1 of the car 2, the substructure 2.2 is indicated schematically.

Gemäß Figur 2 hat die unterste Schürze 13 an ihrem unteren Ende eine nach unten und hinten gerichtete Abschrägung 13.1, an die sich eine waagerecht nach hinten gerichtete Abschrägung 13.2 anschließt. Die Schürze 12 hat an ihrem unteren Ende ebenfalls eine nach unten und hinten gerichtete Abschrägung 12.1. Die beiden Abschrägungen 12.1 und 13.1 liegen im eingefahrenen Zustand der Fahrkorbschürze in einer gemeinsamen Ebene und bildet damit die vorgeschriebene Abschrägung, die beispielsweise unter Beachtung der DIN EN 81-1 mit der Waagerechten einen Winkel von mindestens 60° einschließt, wobei in der Praxis die Projektion dieser Abschrägung auf eine waagerechte Ebene eine Breite von x = 20 mm hat. Für den Fall, dass aus irgendwelchen Gründen andere Normen oder Bestimmungen zu berücksichtigen sind, sind die Abmessungen entsprechend anzupassen.According to FIG. 2 has the bottom skirt 13 at its lower end a downwardly and rearwardly directed bevel 13.1, followed by a horizontally rearwardly facing bevel 13.2. The skirt 12 also has at its lower end a downwardly and rearwardly directed bevel 12.1. The two chamfers 12.1 and 13.1 lie in the retracted state of the car apron in a common plane and thus forms the prescribed bevel, which includes, for example, in accordance with DIN EN 81-1 with the horizontal angle of at least 60 °, in practice, the projection this bevel on a horizontal plane has a width of x = 20 mm. In the event that other standards or regulations are to be taken into account for any reason, the dimensions must be adjusted accordingly.

In Figur 4 sind verschiedene Varianten im Bereich der Abschrägung einer Fahrkorbschürze 1 mit einem Abschrägungswinkel von ca. 60° dargestellt.In FIG. 4 Different variants are shown in the area of the chamfer of a car apron 1 with a chamfer angle of about 60 °.

Komplex a zeigt eine vierteilige Teleskop-Fahrkorbschürze, bei der gemäß dem Stand der Technik nur eine einzige Abschrägung 13.1 im Bereich des plattenförmigen Teleskopelementes 13 angeordnet ist, das im Einbauzustand innen liegt und im ausgefahrenen Zustand der Teleskop-Fahrkorbschürze die unterste Position einnimmt.Complex a shows a four-part telescopic car apron, in which according to the prior art, only a single bevel 13.1 is arranged in the region of the plate-shaped telescopic element 13, which is in the installed state inside and occupies the lowest position in the extended state of the telescopic car apron.

Komplex b zeigt eine Fahrkorbschürze gemäß den Figuren 1, 2 und 3 mit Abschrägungen 12.1 und 13.1 an den unteren Enden der Teleskopelemente 12 und 13.Complex b shows a car apron according to the FIGS. 1, 2 and 3 with bevels 12.1 and 13.1 at the lower ends of the telescopic elements 12 and 13th

Komplex c zeigt eine Fahrkorbschürze, bei der Abschrägungen 11.1 bzw. 12.1 an den Teleskopelementen 11 bzw. 12 angeordnet sind.Complex C shows a car apron in which bevels 11.1 and 12.1 are arranged on the telescopic elements 11 and 12, respectively.

Gemäß Komplex d sind die Teleskopelemente 10, 11 und 12 jeweils mit Abschrägungen 10.1 bzw. 11.1 bzw. 12.1 versehen.According to complex d , the telescopic elements 10, 11 and 12 are each provided with chamfers 10.1 or 11.1 or 12.1.

Gemäß Komplex e haben die beiden äußeren Teleskopelemente 10 und 11 an ihren unteren Enden die Abschrägungen 10.1 bzw. 11.1.According to complex e , the two outer telescopic elements 10 and 11 have at their lower ends the bevels 10.1 and 11.1, respectively.

Figur 4 zeigt deutlich, wie durch die Aufteilung einer einzigen, zum Stand der Technik gehörenden Abschrägung gemäß Komplex a in zwei oder drei Abschrägungsabschnitte die Höhe der Fahrkorbschürze im eingefahrenen Zustand verringert wird, und zwar unter Beibehaltung der geforderten Normen, wonach die Gesamtabschrägung gegenüber der Waagerechten einen Winkel von mindestens 60° einschließt und die Projektion dieser Abschrägung auf eine waagerechte Ebene eine Breite von mindestens 20 mm hat. FIG. 4 clearly shows how dividing a single state-of-the-art chamfering complex a into two or three chamfer sections reduces the height of the car apron when retracted, maintaining the required standards whereby the total chamfer is angled relative to the horizontal of at least 60 ° and the projection of this bevel on a horizontal plane has a width of at least 20 mm.

In Figur 4 deuten die Linien A, B, C, und D an, wie die Höhe einer sich im eingefahrenen Zustand befindenden Fahrkorbschürze mit vier Plattenelementen durch die Aufteilung der Abschrägung auf zwei oder mehrere Plattenelemente verringert werden kann.In FIG. 4 the lines A, B, C, and D indicate how the height of a retracted car apron having four panel members can be reduced by dividing the taper into two or more panel members.

Claims (9)

  1. A lift cage (2) having a multiple-part telescopic cage toe guard (1) which includes a plurality of substantially panel-shaped telescopic elements which may be moved from a retracted condition to an extended condition, with a panel-shaped telescopic element being prolonged by a downwardly and rearwardly directed oblique portion, characterised in that it includes at least three panel-shaped telescopic elements (10, 11, 12 and 13), of which at least two telescopic elements include a downwardly and rearwardly directed oblique portion, and in that the oblique portions form the same angle with respect to the horizontal and in the retracted condition of the cage toe guard lie in a common plane.
  2. A lift cage according to Claim 1, characterised in that the extent by which the oblique portions project over a horizontal plane has a minimum width corresponding to the respective standards.
  3. A lift cage according to Claim 2, characterised in that the extent of the projection is at least 20 mm in width.
  4. A lift cage according to one of Claims 1 to 3, characterised in that the oblique portions form an angle with respect to the horizontal corresponding to the respective standards.
  5. A lift cage according to the preceding claim, characterised in that the oblique portions form an angle with respect to the horizontal of at least 60°.
  6. A lift cage according to one of Claims 1 to 5, characterised in that the two outer telescopic elements (10, 11) include oblique portions (10.1, 11.1).
  7. A lift cage according to one of Claims 1 to 5, characterised in that it includes four panel-shaped telescopic elements (10, 11, 12, 13), of which three adjacent telescopic elements (10, 11, 12) include the oblique portions (10.1 and 11.1 and 12.1 respectively).
  8. A lift cage according to one of Claims 1 to 5, characterised in that two inner telescopic elements (12, 13) include the oblique portions (12.1 and 13.1 respectively).
  9. A lift cage according to one of Claims 1 to 5, characterised in that it includes four telescopic elements (10, 11, 12, 13), and in that two telescopic elements (11, 12) that are located in the middle are provided with oblique portions (11.1 and 12.1 respectively).
EP08008803A 2007-09-12 2008-05-10 Lift car Active EP2039644B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007043518 2007-09-12

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Publication Number Publication Date
EP2039644A1 EP2039644A1 (en) 2009-03-25
EP2039644B1 true EP2039644B1 (en) 2010-08-25

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EP08008803A Active EP2039644B1 (en) 2007-09-12 2008-05-10 Lift car

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EP (1) EP2039644B1 (en)
AT (1) ATE478823T1 (en)
DE (1) DE502008001188D1 (en)
ES (1) ES2350410T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11198594B2 (en) 2018-08-06 2021-12-14 Otis Elevator Company Elevator car apron

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3257803B1 (en) * 2016-06-15 2019-11-13 Otis Elevator Company Elevator car and elevator system
EP3530605B1 (en) * 2018-02-23 2021-09-15 Otis Elevator Company Elevator car toe guard system
EP3608282B1 (en) 2018-08-10 2022-06-22 Otis Elevator Company Elevator car apron
CN111196544B (en) * 2018-11-20 2023-04-11 株式会社铃木综合开发研究所 Scalable toeguard of elevator car

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2841886B1 (en) 2002-07-05 2004-09-17 Alfonso Enrique RETRACTABLE PROTECTION DEVICE FOR ELEVATOR CAB
FI118220B (en) 2004-06-07 2007-08-31 Kone Corp Security arrangement in the doorway to a lift
DE102006022407B3 (en) 2006-05-13 2007-08-23 W & W Aufzugs- Und Industriekomponenten Gmbh & Co. Kg Elevator cabin three-part telescopic apron has a damper to reduce noise levels, when moving from the retracted to the extended position

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11198594B2 (en) 2018-08-06 2021-12-14 Otis Elevator Company Elevator car apron

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ES2350410T3 (en) 2011-01-21
DE502008001188D1 (en) 2010-10-07
ATE478823T1 (en) 2010-09-15
EP2039644A1 (en) 2009-03-25

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