EP1118574A2 - Elevator plant with reduced shaftpit depth - Google Patents
Elevator plant with reduced shaftpit depth Download PDFInfo
- Publication number
- EP1118574A2 EP1118574A2 EP00127886A EP00127886A EP1118574A2 EP 1118574 A2 EP1118574 A2 EP 1118574A2 EP 00127886 A EP00127886 A EP 00127886A EP 00127886 A EP00127886 A EP 00127886A EP 1118574 A2 EP1118574 A2 EP 1118574A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- car
- braking device
- shaft
- elevator
- activation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- B66B5/0056—Safety of maintenance personnel by preventing crushing
- B66B5/0068—Safety of maintenance personnel by preventing crushing by activating the safety brakes when the elevator car exceeds a certain upper or lower position in the elevator shaft
Definitions
- the present invention relates to an elevator installation reduced pit depth.
- the Invention securing the pit or setting it up a temporary shelter in the shaft pit.
- EP 0 129 678 A1 is an automatic device to secure a temporary work space in the Well known, the mechanical one as a route limitation lever adjustable in the travel path of the car includes. When opening a door leading into the pit the lever is forced into its the travel path of the car limiting securing position pivoted, with pivoted lever interrupted the operation of the elevator is.
- JP-A-03056378 is a device for limiting the travel path known, which at times on a guide rail stopper element to be provided includes a car to prevent driving under a predetermined position.
- the stopper element is at one end at an outside the axis of rotation located on the guide rail and can about this axis of rotation in a protruding into the track Position can be rotated.
- the well-known guideway limiter has the disadvantage that the car only at one point on his Outer edge is supported. When the car is heavily loaded or at a somewhat higher impact speed the car warps the known guideway limiter. In addition, the guide rail with the existing load slightly bent.
- the known braking and safety devices are usually via a speed limiter or a so-called slack rope detection triggered.
- the trigger can be both mechanical and electrical, but also on other ways such as pneumatic or hydraulic.
- the braking device is actuated / triggered, when a person wants to enter the pit. On the one hand, this can be done consciously by the person himself Pressing an appropriate button, pulling one Lever or the like happen.
- This in particular electrical or mechanical device for triggering the Braking device (release device) is preferably outside arranged of the elevator shaft, and is by the Person actuated before entering the elevator shaft.
- the access door is a particularly advantageous embodiment of the elevator shaft e.g. through a so-called emergency release can only be opened if the triggering device has been actuated beforehand has been.
- the catching / braking device can preferably be activated, when the car is in a predetermined or predeterminable distance to the pit floor or the Car falls below this minimum distance.
- the triggering device is also available one of the lower access doors (and possibly other Doors) to the elevator shaft in operative connection, so that at one manually opening the door automatically triggering the Braking device takes place.
- This has the advantage that the Braking device even when entering the shaft a person who has no knowledge of someone outside the Tray arranged triggering device has triggered becomes.
- the activation advantageously takes place when opening the door only when the car is in a predetermined or predeterminable height above the shaft floor. This height is given, for example, if between the front lower edge of the car and the shaft door floor a person can slip through.
- means for activating in the pit should be provided directly upon entering the pit are operated automatically and the Trigger the braking device.
- release devices can be, for example, light barriers (with light in the visible or invisible area), sensor mats (contact or step protection mats), gratings or step plates, Tension wires, or other known triggering options act when entering / interrupting or otherwise Actuation of a signal to trigger the braking device generate or trigger the braking device directly.
- Further Trigger options include the use of ultrasound or radar, inductive and / or capacitive means or agents based on piezo effect.
- the mats / grids can be supported over the whole area or only in areas and can have switches with path or pressure evaluation.
- sensors in the car shaft provided that trigger the braking device as soon as the car is a minimum height above the shaft pit floor falls below. The sensors are only after previous Opened the access door activated.
- the triggering device advantageously comprises a Circuit device with two stable states that at Actuation of the trigger device from its first stable State is placed in the second stable state. Consequently prevents, for example, when closing the Access door through the person in the shaft and the associated closing of the circuit of the trigger device the braking device is deactivated again.
- the switching device with the two stable states remains after closing the access door, leaving the Floor mats etc. in the second stable position, and can only operated again from outside the shaft and into the Starting position to be reset. During this time the braking device is triggered so that no movement of the car or no movement of the car into the lowest stop is possible.
- the braking device is a safety gear, so takes place after the actuation according to the invention with a further downward movement of the car e.g. a Blockage of the pliers on the guide rails so that the The car stops.
- the braking device is independent of upstream Speed sensors or a speed monitor triggered directly.
- safety gear or braking devices can also be used on suspension or brake cables or a piston brake for hydraulic cylinders (for hydraulic elevators).
- a brake device can also be used for guide rail-less elevators for holding or wedging on the shaft walls or used on brake rails. Is the elevator shaft formed as a shaft structure, the braking device also attack directly on parts of the scaffolding.
- a guideway limiter in the path of the car can be introduced.
- the introduction of the guideway limiter can be done manually or automatically.
- the invention also includes a method for operating a Elevator system, in which a temporary shelter under one Elevator car is set up in which a Braking device (already available with a rope elevator) is activated.
Landscapes
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Types And Forms Of Lifts (AREA)
- Elevator Door Apparatuses (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft eine Aufzuganlage mit verringerter Schachtgrubentiefe. Insbesondere betrifft die Erfindung die Sicherung der Schachtgrube bzw. das Einrichten eines temporären Schutzraumes in der Schachtgrube.The present invention relates to an elevator installation reduced pit depth. In particular, the Invention securing the pit or setting it up a temporary shelter in the shaft pit.
Die Problematik der Absicherung von Schutzräumen in Schachtgruben in Aufzugschächten mit verringerter Schachtgrubentiefe, insbesondere für in der Schachtgrube tätiges Wartungs- und Reparaturpersonal, ist bekannt. Diese Absicherung erfolgt in der Regel mittels Fahrwegbegrenzern in der Form von Klappstützen oder Stoppern, die vorübergehend in den Fahrkorbweg eingebracht werden und dazu dienen, den Fahrkorb an einer Abfahrt bis in die Schachtgrube zu hindern.The problem of protecting shelters in Shaft pits in elevator shafts with reduced shaft pit depth, especially for those working in the shaft pit Maintenance and repair personnel is known. This hedge is usually done by means of guideways in the form of folding supports or stoppers that are temporary be introduced into the car path and serve the To prevent the car from descending to the shaft pit.
So ist aus der EP 0 129 678 A1 eine automatische Einrichtung zur Sicherung eines temporären Arbeitsraumes in der Schachtgrube bekannt, die einen als Fahrwegbegrenzung mechanisch in den Fahrweg des Fahrkorbes verstellbaren Hebel umfaßt. Beim Öffnen einer in die Schachtgrube führenden Tür wird der Hebel zwangsweise in seine den Fahrweg des Fahrkorbs begrenzende Sicherungsstellung geschwenkt, wobei bei eingeschwenktem Hebel der Fahrbetrieb des Aufzugs unterbrochen ist. EP 0 129 678 A1 is an automatic device to secure a temporary work space in the Well known, the mechanical one as a route limitation lever adjustable in the travel path of the car includes. When opening a door leading into the pit the lever is forced into its the travel path of the car limiting securing position pivoted, with pivoted lever interrupted the operation of the elevator is.
Aus der JP-A-03056378 ist eine Vorrichtung zur Fahrwegbegrenzung bekannt, die ein zeitweise an einer Führungsschiene vorzusehendes Stopperelement umfaßt, um einen Fahrkorb daran zu hindern, unter eine vorgegebene Position zu fahren. Das Stopperelement ist an einem Ende an einer außerhalb der Führungsschiene befindlichen Drehachse gelagert und kann um diese Drehachse in eine in den Fahrweg ragende Stellung gedreht werden. Der bekannte Fahrwegbegrenzer hat den Nachteil, daß der Fahrkorb nur an einem Punkt an seinem Außenrand abgestützt wird. Bei größerer Belastung des Fahrkorbs oder bei etwas größerer Aufprallgeschwindigkeit auf den bekannten Fahrwegbegrenzer verzieht sich der Fahrkorb. Zusätzlich wird die Führungsschiene bei der vorhandenen Belastung leicht verbogen.From JP-A-03056378 is a device for limiting the travel path known, which at times on a guide rail stopper element to be provided includes a car to prevent driving under a predetermined position. The stopper element is at one end at an outside the axis of rotation located on the guide rail and can about this axis of rotation in a protruding into the track Position can be rotated. The well-known guideway limiter has the disadvantage that the car only at one point on his Outer edge is supported. When the car is heavily loaded or at a somewhat higher impact speed the car warps the known guideway limiter. In addition, the guide rail with the existing load slightly bent.
Weitere Fahrwegbegrenzer sind aus der NL-A-9100059, der WO 97/23399 A2, der US-PS 1.392.962 und der EP 0 922 663 bekannt.Further guideways are from NL-A-9100059, WO 97/23399 A2, US-PS 1,392,962 and EP 0 922 663.
Demgegenüber wird erfindungsgemäß eine Aufzuganlage mit den Merkmalen des Anspruches 1 vorgeschlagen. Demnach erfolgt die Sicherung eines temporären (Arbeits-)Raumes in der Schachtgrube durch Auslösen/Betätigen der ohnehin bei einem Seilaufzug vorhandenen Bremsvorrichtung. Diese Bremsvorrichtungen sind bekannt und im allgemeinen als Sperr- oder Bremsfangvorrichtung an den Aufzugführungsschienen ausgebildet.In contrast, an elevator system with the Features of claim 1 proposed. So it happens securing a temporary (work) space in the Shaft pit by triggering / actuating the anyway at one Rope elevator existing braking device. These braking devices are known and generally known as blocking or Brake safety device formed on the elevator guide rails.
Die bekannten Brems- bzw. Fangvorrichtungen werden üblicherweise über einen Geschwindigkeitsbegrenzer oder eine sogenannte Schlaffseilerkennung ausgelöst. Die Auslösung kann sowohl mechanisch als auch elektrisch, aber auch auf andere Weise wie pneumatisch oder hydraulisch, erfolgen. The known braking and safety devices are usually via a speed limiter or a so-called slack rope detection triggered. The trigger can be both mechanical and electrical, but also on other ways such as pneumatic or hydraulic.
Erfindungsgemäß wird die Bremsvorrichtung betätigt/ausgelöst, wenn eine Person die Schachtgrube betreten will. Dies kann zum einen durch die Person selbst bewußt durch Drücken eines entsprechend vorgesehenen Knopfes, Ziehen eines Hebels oder dergleichen geschehen. Diese insbesondere elektrische oder mechanische Vorrichtung zum Auslösen der Bremsvorrichtung (Auslösevorrichtung) ist vorzugsweise außerhalb des Aufzugschachtes angeordnet, und wird von der Person vor dem Betreten des Aufzugschachtes betätigt. In besonders vorteilhafter Ausgestaltung ist die Zugangstür des Aufzugschachtes z.B. durch eine sogenannte Notentriegelung nur öffenbar, wenn zuvor die Auslösevorrichtung betätigt wurde. Vorzugsweise ist die Fang-/Bremsvorrichtung aktivierbar, wenn sich der Fahrkorb in einem vorgegebenen bzw. vorgebbaren Abstand zum Grubenboden befindet oder der Fahrkorb diesen Mindestabstand unterschreitet.According to the invention, the braking device is actuated / triggered, when a person wants to enter the pit. On the one hand, this can be done consciously by the person himself Pressing an appropriate button, pulling one Lever or the like happen. This in particular electrical or mechanical device for triggering the Braking device (release device) is preferably outside arranged of the elevator shaft, and is by the Person actuated before entering the elevator shaft. In The access door is a particularly advantageous embodiment of the elevator shaft e.g. through a so-called emergency release can only be opened if the triggering device has been actuated beforehand has been. The catching / braking device can preferably be activated, when the car is in a predetermined or predeterminable distance to the pit floor or the Car falls below this minimum distance.
Alternativ oder zusätzlich steht die Auslösevorrichtung mit einer der unteren Zugangstüren (und gegebenenfalls weiteren Türen) zum Aufzugschacht in Wirkverbindung, so daß bei einem manuellen Öffnen der Tür automatisch ein Auslösen der Bremsvorrichtung erfolgt. Dies hat den Vorteil, daß die Bremsvorrichtung auch bei einem Betreten des Schachts durch eine Person, die keine Kenntnis von einer außerhalb des Schachts angeordneten Auslösevorrichtung hat, ausgelöst wird. Vorteilhafterweise erfolgt die Aktivierung beim Öffnen der Türe nur dann, wenn sich der Fahrkorb in einer vorbestimmten bzw. vorgebbaren Höhe über dem Schachtboden befindet. Diese Höhe ist beispielsweise dann gegeben, wenn zwischen der vorderen Fahrkorbunterkante und dem Schachttürboden eine Person durchschlüpfen kann. As an alternative or in addition, the triggering device is also available one of the lower access doors (and possibly other Doors) to the elevator shaft in operative connection, so that at one manually opening the door automatically triggering the Braking device takes place. This has the advantage that the Braking device even when entering the shaft a person who has no knowledge of someone outside the Tray arranged triggering device has triggered becomes. The activation advantageously takes place when opening the door only when the car is in a predetermined or predeterminable height above the shaft floor. This height is given, for example, if between the front lower edge of the car and the shaft door floor a person can slip through.
Alternativ oder zusätzlich können Mittel zum Aktivieren in der Schachtgrube direkt vorgesehen sein, die bei einem Betreten der Schachtgrube automatisch betätigt werden und die Bremsvorrichtung auslösen. Bei diesen Auslösevorrichtungen kann es sich beispielsweise um Lichtschranken (mit Licht im sichtbaren oder unsichtbaren Bereich), Sensormatten (Kontakt- oder Trittschutzmatten), Gitterroste oder Trittplatten, Spanndrähte, oder andere bekannte Auslösemöglichkeiten handeln, die bei Betreten/Unterbrechung oder anderweitiger Betätigung ein Signal zur Auslösung der Bremsvorrichtung erzeugen oder die Bremsvorrichtung direkt auslösen. Weitere Auslösemöglichkeiten umfassen die Verwendung von Ultraschall oder Radar, induktiven und/oder kapazitiven Mitteln oder auf Piezoeffekt beruhenden Mitteln. Die Matten/Roste können ganzflächig oder nur in Flächenbereichen abgestützt sein und können Schalter mit Weg- oder Druckauswertung aufweisen.Alternatively or additionally, means for activating in the pit should be provided directly upon entering the pit are operated automatically and the Trigger the braking device. With these release devices can be, for example, light barriers (with light in the visible or invisible area), sensor mats (contact or step protection mats), gratings or step plates, Tension wires, or other known triggering options act when entering / interrupting or otherwise Actuation of a signal to trigger the braking device generate or trigger the braking device directly. Further Trigger options include the use of ultrasound or radar, inductive and / or capacitive means or agents based on piezo effect. The mats / grids can be supported over the whole area or only in areas and can have switches with path or pressure evaluation.
Alternativ oder zusätzlich sind im Fahrkorbschacht Sensoren vorgesehen, die eine Auslösung der Bremsvorrichtung bewirken sobald der Fahrkorb eine Mindesthöhe über dem Schachtgrubenboden unterschreitet. Die Sensoren sind nur nach vorherigem Öffnen der Zugangstür aktiviert.Alternatively or additionally there are sensors in the car shaft provided that trigger the braking device as soon as the car is a minimum height above the shaft pit floor falls below. The sensors are only after previous Opened the access door activated.
Die Auslösevorrichtung umfaßt vorteilhafterweise eine Schaltungseinrichtung mit zwei stabilen Zuständen, die bei Betätigung der Auslösevorrichtung von ihrem ersten stabilen Zustand in den zweiten stabilen Zustand versetzt wird. Somit wird verhindert, daß beispielsweise beim Schließen der Zugangstür durch die im Schacht befindliche Person und das damit verbundene Schließen des Schaltkreises der Auslösevorrichtung die Bremsvorrichtung wieder deaktiviert wird. Die Schalteinrichtung mit den zwei stabilen Zuständen bleibt nach einem Schließen der Zugangstür, Verlassen der Trittmatten etc. in der zweiten stabilen Stellung, und kann nur von außerhalb des Schachtes erneut betätigt und in die Ausgangslage zurückversetzt werden. Während dieser Zeit ist die Bremsvorrichtung ausgelöst, so daß keine Fahrbewegung des Fahrkorbs bzw. keine Fahrbewegung des Fahrkorbs in die unterste Haltestelle möglich ist.The triggering device advantageously comprises a Circuit device with two stable states that at Actuation of the trigger device from its first stable State is placed in the second stable state. Consequently prevents, for example, when closing the Access door through the person in the shaft and the associated closing of the circuit of the trigger device the braking device is deactivated again. The switching device with the two stable states remains after closing the access door, leaving the Floor mats etc. in the second stable position, and can only operated again from outside the shaft and into the Starting position to be reset. During this time the braking device is triggered so that no movement of the car or no movement of the car into the lowest stop is possible.
Handelt es sich bei der Bremsvorrichtung um eine Fangvorrichtung, so erfolgt nach der erfindungsgemäßen Betätigung bei einer weiteren Abwärtsbewegung des Fahrkorbs z.B. eine Blockade der Fangzangen an den Führungsschienen, so daß der Fahrkorb stehen bleibt. Durch die erfindungsgemäße Betätigung wird die Bremsvorrichtung unabhängig von vorgeschalteten Geschwindigkeitssensoren bzw. einer Geschwindigkeitsüberwachung direkt ausgelöst.If the braking device is a safety gear, so takes place after the actuation according to the invention with a further downward movement of the car e.g. a Blockage of the pliers on the guide rails so that the The car stops. Through the actuation according to the invention the braking device is independent of upstream Speed sensors or a speed monitor triggered directly.
Die Erfindung ist selbstverständlich nicht auf die Verwendung von Fangvorrichtungen an Führungsschienen beschränkt. So können beispielsweise auch Fang- oder Bremsvorrichtungen an Trag- oder Bremsseilen oder eine Kolbenbremse für Hydraulikzylinder (bei Hydraulikaufzügen) eingesetzt werden. Bei führungsschienenlosen Aufzügen kann auch eine Bremsvorrichtung zum Halten oder Verkeilen an den Schachtwänden oder an Bremsschienen verwendet werden. Ist der Aufzugschacht als Schachtgerüst ausgebildet, so kann die Bremsvorrichtung auch direkt an Teilen des Traggerüstes angreifen.The invention is of course not limited to use limited by safety devices on guide rails. For example, safety gear or braking devices can also be used on suspension or brake cables or a piston brake for hydraulic cylinders (for hydraulic elevators). A brake device can also be used for guide rail-less elevators for holding or wedging on the shaft walls or used on brake rails. Is the elevator shaft formed as a shaft structure, the braking device also attack directly on parts of the scaffolding.
In weiterer Ausgestaltung der Erfindung kann nach erfolgter Blockierung des Fahrkorbs durch die Bremsvorrichtung zusätzlich ein Fahrwegbegrenzer in die Bahn des Fahrkorbs eingebracht werden. Das Einbringen des Fahrwegbegrenzers kann manuell oder automatisch erfolgen.In a further embodiment of the invention can be done after Blockage of the car by the braking device additionally a guideway limiter in the path of the car be introduced. The introduction of the guideway limiter can be done manually or automatically.
Weitere alternative und vorteilhafte Aspekte der Erfindung umfassen, daß
- die Aktivierung der Bremsvorrichtung mechanisch erfolgt, durch mechanische Blockierung des Fahrwegbegrenzers oder mechanische Auslösung der Schlaffseilerkennung;
- eine Bewegung der Trittplatte die mechanische Aktivierung auslöst;
- die Aktivierung von außerhalb des Schachtes durch elektrische oder mechanische Auslöseeinrichtungen erfolgt;
- die Aktivierung von außerhalb des Schachtes über Schalter oder Hebel erfolgt;
- die vorbestimmbare Höhe vorgegeben ist, bevor zwischen unterer Fahrkorbvorderkante und Schachttürboden eine Person durchschlüpfen kann;
- die Aktivierung erfolgt, wenn die Notentriegelung der Türen im unteren Schachtbereich betätigt wird.
- the braking device is activated mechanically, by mechanically blocking the travel limiter or mechanically triggering the slack rope detection;
- movement of the tread plate triggers the mechanical activation;
- the activation takes place from outside the shaft by means of electrical or mechanical release devices;
- activation takes place from outside the shaft using switches or levers;
- the predeterminable height is specified before a person can slip through between the lower front edge of the car and the shaft door floor;
- activation takes place when the emergency unlocking of the doors in the lower shaft area is activated.
Die Erfindung umfaßt auch ein Verfahren zum Betrieb einer Aufzuganlage, bei der ein temporärer Schutzraum unter einem Fahrkorb der Aufzuganlage eingerichtet wird, in dem eine (ohnehin bei einem Seilaufzug vorhandene) Bremsvorrichtung aktiviert wird.The invention also includes a method for operating a Elevator system, in which a temporary shelter under one Elevator car is set up in which a Braking device (already available with a rope elevator) is activated.
Es versteht sich, daß die vorstehend genannten Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It is understood that the above features not only in the specified combination, but can also be used in other combinations or alone are without the scope of the present invention leave.
Claims (11)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10002140 | 2000-01-19 | ||
DE10002140 | 2000-01-19 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1118574A2 true EP1118574A2 (en) | 2001-07-25 |
EP1118574A3 EP1118574A3 (en) | 2002-08-21 |
EP1118574B1 EP1118574B1 (en) | 2008-10-29 |
Family
ID=7628021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00127886A Revoked EP1118574B1 (en) | 2000-01-19 | 2000-12-20 | Elevator plant with reduced shaftpit depth |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1118574B1 (en) |
AT (1) | ATE412604T1 (en) |
DE (1) | DE50015424D1 (en) |
ES (1) | ES2316335T3 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1475342A1 (en) * | 2003-05-07 | 2004-11-10 | Inventio Ag | Device to create a temporary working space for elevators |
EP1817251A1 (en) * | 2004-12-03 | 2007-08-15 | Otis Elevator Company | Safety device for use in an elevator system |
WO2011030325A1 (en) * | 2009-09-13 | 2011-03-17 | Yoram Madar | Safety devices for elevators with reduced clearances |
US8136637B2 (en) | 2006-06-30 | 2012-03-20 | Otis Elevator Company | Safety device for securing minimum spaces at the top or bottom of an elevator shaft being inspected, and elevator having such safety devices |
US8162108B2 (en) | 2006-06-30 | 2012-04-24 | Otis Elevator Company | Elevator having a limit switch for controlling power to the drive system as an elevator car approaches a shallow pit or a low overhead |
EP2727871A1 (en) | 2012-10-30 | 2014-05-07 | Kone Corporation | An elevator and a method |
US8807288B1 (en) | 1999-04-22 | 2014-08-19 | Otis Elevator Company | Retractable toe guard |
US9878877B2 (en) | 2013-01-07 | 2018-01-30 | Kone Corporation | Elevator and means for forming a safety space |
EP3336032A1 (en) * | 2016-12-14 | 2018-06-20 | Otis Elevator Company | Elevator safety system and method of operating an elevator system |
EP3366628A1 (en) | 2017-02-27 | 2018-08-29 | KONE Corporation | Safety system for a service space within an elevator shaft |
WO2021089185A3 (en) * | 2019-11-05 | 2021-08-12 | Cobianchi Liftteile Ag | Apparatus for ensuring a safe protected area for a conveyor system |
Citations (3)
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NL9100059A (en) * | 1991-01-11 | 1992-08-03 | Otis Liften B V | Lift-cage position locking mechanism - has gravity operated locks providing lower and upper safety zones within a lift shaft |
JPH0948567A (en) * | 1995-08-04 | 1997-02-18 | Bunso Rin | Escape ladder device that accompanies car of elevator |
US5806633A (en) * | 1995-12-22 | 1998-09-15 | Macuga; Henry J. | Elevator safety system incorporating false pit |
-
2000
- 2000-12-20 AT AT00127886T patent/ATE412604T1/en active
- 2000-12-20 ES ES00127886T patent/ES2316335T3/en not_active Expired - Lifetime
- 2000-12-20 EP EP00127886A patent/EP1118574B1/en not_active Revoked
- 2000-12-20 DE DE50015424T patent/DE50015424D1/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL9100059A (en) * | 1991-01-11 | 1992-08-03 | Otis Liften B V | Lift-cage position locking mechanism - has gravity operated locks providing lower and upper safety zones within a lift shaft |
JPH0948567A (en) * | 1995-08-04 | 1997-02-18 | Bunso Rin | Escape ladder device that accompanies car of elevator |
US5806633A (en) * | 1995-12-22 | 1998-09-15 | Macuga; Henry J. | Elevator safety system incorporating false pit |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 17, 5. Juni 2001 (2001-06-05) & JP 09 048567 A (RIN BUNSO), 18. Februar 1997 (1997-02-18) * |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8807288B1 (en) | 1999-04-22 | 2014-08-19 | Otis Elevator Company | Retractable toe guard |
EP1475342A1 (en) * | 2003-05-07 | 2004-11-10 | Inventio Ag | Device to create a temporary working space for elevators |
CN1326762C (en) * | 2003-05-07 | 2007-07-18 | 因温特奥股份公司 | Lift installation with a device for furnishing a temporary protective space, a method for mounting the device and a method for furnishing the temporary protective space |
US7278517B2 (en) | 2003-05-07 | 2007-10-09 | Inventio Ag | Elevator installation with a device for furnishing a temporary protective space, a method for mounting the device and a method for furnishing the temporary protective space |
EP1817251A1 (en) * | 2004-12-03 | 2007-08-15 | Otis Elevator Company | Safety device for use in an elevator system |
EP1817251A4 (en) * | 2004-12-03 | 2012-01-18 | Otis Elevator Co | Safety device for use in an elevator system |
US8136637B2 (en) | 2006-06-30 | 2012-03-20 | Otis Elevator Company | Safety device for securing minimum spaces at the top or bottom of an elevator shaft being inspected, and elevator having such safety devices |
US8162108B2 (en) | 2006-06-30 | 2012-04-24 | Otis Elevator Company | Elevator having a limit switch for controlling power to the drive system as an elevator car approaches a shallow pit or a low overhead |
US8365870B2 (en) | 2006-06-30 | 2013-02-05 | Otis Elevator Company | Foldable handrail and safety switch arrangement on top of an elevator car |
US8770349B2 (en) | 2009-09-13 | 2014-07-08 | Yoram Madar | Safety devices for elevators with reduced clearances |
WO2011030325A1 (en) * | 2009-09-13 | 2011-03-17 | Yoram Madar | Safety devices for elevators with reduced clearances |
EP2727871A1 (en) | 2012-10-30 | 2014-05-07 | Kone Corporation | An elevator and a method |
US9731936B2 (en) | 2012-10-30 | 2017-08-15 | Kone Corporation | Elevator and a method |
US9878877B2 (en) | 2013-01-07 | 2018-01-30 | Kone Corporation | Elevator and means for forming a safety space |
EP3336032A1 (en) * | 2016-12-14 | 2018-06-20 | Otis Elevator Company | Elevator safety system and method of operating an elevator system |
CN108217360A (en) * | 2016-12-14 | 2018-06-29 | 奥的斯电梯公司 | The method of elevator safety system and operation elevator device |
US10947087B2 (en) | 2016-12-14 | 2021-03-16 | Otis Elevator Company | Elevator safety system and method of operating an elevator system |
EP3366628A1 (en) | 2017-02-27 | 2018-08-29 | KONE Corporation | Safety system for a service space within an elevator shaft |
US10906777B2 (en) | 2017-02-27 | 2021-02-02 | Kone Corporation | Safety system for a service space within an elevator shaft |
WO2021089185A3 (en) * | 2019-11-05 | 2021-08-12 | Cobianchi Liftteile Ag | Apparatus for ensuring a safe protected area for a conveyor system |
Also Published As
Publication number | Publication date |
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ATE412604T1 (en) | 2008-11-15 |
EP1118574B1 (en) | 2008-10-29 |
EP1118574A3 (en) | 2002-08-21 |
ES2316335T3 (en) | 2009-04-16 |
DE50015424D1 (en) | 2008-12-11 |
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