EP1236670B1 - Fin de course de sécurité pour ascenseur - Google Patents

Fin de course de sécurité pour ascenseur Download PDF

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Publication number
EP1236670B1
EP1236670B1 EP01104968A EP01104968A EP1236670B1 EP 1236670 B1 EP1236670 B1 EP 1236670B1 EP 01104968 A EP01104968 A EP 01104968A EP 01104968 A EP01104968 A EP 01104968A EP 1236670 B1 EP1236670 B1 EP 1236670B1
Authority
EP
European Patent Office
Prior art keywords
buffer
limit switch
lift
emergency limit
car
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01104968A
Other languages
German (de)
English (en)
Other versions
EP1236670A1 (fr
Inventor
Günter Dr. Reuter
Wolfgang Meissner
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.)
ThyssenKrupp Aufzugswerke GmbH
Original Assignee
ThyssenKrupp Aufzugswerke GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ThyssenKrupp Aufzugswerke GmbH filed Critical ThyssenKrupp Aufzugswerke GmbH
Priority to ES01104968T priority Critical patent/ES2317860T3/es
Priority to EP01104968A priority patent/EP1236670B1/fr
Priority to DE50114598T priority patent/DE50114598D1/de
Priority to AT01104968T priority patent/ATE418520T1/de
Publication of EP1236670A1 publication Critical patent/EP1236670A1/fr
Application granted granted Critical
Publication of EP1236670B1 publication Critical patent/EP1236670B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B66B5/28—Buffer-stops for cars, cages, or skips
    • B66B5/284—Buffer-stops for cars, cages, or skips mounted on cars or counterweights

Definitions

  • the invention relates to an elevator for transporting loads and / or persons having the features of the preamble of claim 1.
  • elevators which are usually arranged at the lower and optionally at the upper end of the travel path of the car and an optionally used counterweight.
  • the drive of the elevator is switched off by means of a emergency limit switch.
  • the power supply of an electric drive motor is interrupted.
  • the emergency limit switch is usually held laterally on a guide rail of the car and includes a shift lever which cooperates with a switching cam mounted on the car. If the car falls below a predetermined minimum distance to the associated buffer, the shift lever is pivoted by means of the switching curve such that the emergency limit switches off the power supply of the drive motor with further movement of the car.
  • Such a construction has the disadvantage that the shift lever and the associated shift curve must be aligned exactly with each other to ensure that the emergency limit switch is reliably operated. The orientation of the pivot lever to the switching curve must be checked at regular intervals.
  • Another disadvantage arises from the fact that the switching curve to achieve a switching point by the pivoting of the shift lever a relatively large minimum travel path of the car requires. This has the consequence that the elevator shaft below or optionally above the respective final stop of the car must provide a not insignificant infrastructure, so that the pit or the shaft head of the elevator shaft must have an additional depth.
  • a buffer device for an elevator which has a buffer switch.
  • the buffer switch can be actuated by a movable plunger of the buffer device.
  • the plunger must be moved by an impending car in the direction of the buffer switch. The operation of the buffer switch takes place only after the impact of the car on the plunger.
  • Object of the present invention is to develop an elevator of the type mentioned in such a way that simplifies the installation of the emergency limit and the depth of the pit and the shaft head can be reduced.
  • the construction according to the invention makes it possible to reduce the depth of the shaft pit and the shaft head, since the when using a laterally arranged pivot lever and an associated Switching curve required large switching paths can be significantly reduced.
  • the buffer may be located at the top and / or bottom of the elevator shaft and the associated buffer landing surface may be located on the car and / or at the counterweight. However, it may also be provided a reverse arrangement such that the buffer on the car and / or the counterweight and the Pufferauf Economicscharacter at the upper and / or lower end of the elevator shaft is arranged.
  • the emergency limit switch can be actuated without contact by the buffer or the buffer impact area associated with the buffer, for example in the form of a proximity switch, in particular a magnetic field sensor, which detects falling below a minimum distance between the car or counterweight on the one hand and buffer on the other hand and then provides an electrical control signal.
  • a proximity switch in particular a magnetic field sensor
  • the emergency limit switch mechanically, for example by pressurization, can be actuated.
  • pressure-sensitive switching elements can be used, with the help of which the mechanical contact between the buffer and the associated Pufferauf Economics
  • the emergency limit switch is held on the buffer and can be actuated by the buffer contact surface. It is advantageous if the emergency limit switch immovable is fixed to the buffer and by the buffer associated, arranged on the car and / or the counterweight Pufferauf Economics Structure is actuated. It is favorable if the emergency limit switch can already be actuated before the buffer contact surface makes contact with the buffer.
  • the emergency limit switch can also be arranged in the buffer next to the buffer or with a correspondingly high buffer execution.
  • the emergency limit switch the Pufferauf Economics Information assigned for example held on the car and / or the counterweight and can be actuated by the buffer. It is advantageous if the buffer forms a button through which an actuating element of the emergency limit switch can be actuated.
  • the buffer impact surface is arranged on a stop which is positioned on the car and / or on the counterweight or in the elevator shaft.
  • the emergency limit switch can advantageously be arranged on or in the stop.
  • the car associated with the buffer stop is held, which forms the Pufferauf Economics Structure, and if the emergency limit switch is arranged on the stop.
  • the installation of the emergency limit switch can thus be done together with the mounting of the stop.
  • the emergency limit switch has an over the PufferaufeuticType in the direction of the buffer projecting actuator, such as a switch plunger.
  • the stopper is preferably plate-shaped, wherein the emergency limit switch is disposed on the rear side facing away from the buffer of the stop and the actuating element engages through a passage opening of the stop and projects in the direction of the buffer.
  • FIGS. 1 to 4 is a schematic representation of a total occupied by the reference numeral 10 elevator shown with two along a hoistway 12 extending guide rails 14, 15 to which a car 16 by means of guide elements 22, 23 and a known per se and therefore not shown in the drawing drive, for example an electric drive, is kept movable.
  • a car 16 by means of guide elements 22, 23 and a known per se and therefore not shown in the drawing drive, for example an electric drive, is kept movable.
  • the hoistway 12 which forms a shaft pit 18 in this area with a horizontally extending shaft bottom 19 and vertically oriented shaft walls 20th
  • a deformable, energy-storing or energy-dissipating buffer 25 is arranged at the bottom of the shaft 19 at the lower end of the travel path of the elevator car 16.
  • the buffer 25 is associated with a stop in the form of a stop plate 26 on the car 16, which forms a Pufferauf Economics Structure 28 on its front side facing the buffer 25. If the car 16 is moved beyond an end stop (not shown in the drawing) in the direction of the shaft bottom 19, the buffer impact surface 28 strikes the end face 30 of the buffer 25 facing the car 16, which deforms upon further movement of the car 16 and the movement of the car 16 stops.
  • the emergency limit switch 34 comprises an actuating element in the form of a spring-loaded switch plunger 36, which passes through a through hole 38 of the stop plate 26 and projects beyond the Pufferauf Economics materials 28 in the direction of the buffer 25.
  • the emergency limit switch 34 is in the in the FIGS. 1 to 4 shown embodiment, held on the car 16 and is actuated by the stationary buffer 25.
  • the emergency limit switch 34 on the buffer 25 for example to fix laterally.
  • the switch plunger 36 can project beyond the end face 30 in the direction of the car 16.
  • FIG. 5 is shown in sections the lower end portion of an elevator 40 (not part of the invention), which is constructed with the exception of the emergency stop switch used as the elevator 10, so that for identical components the same reference numerals as in FIGS. 1 to 4 were used.
  • the elevator 40 also includes a car 16, which carries on its the bottom of the shaft 19 facing bottom of the buffer 25 associated stop plate 26. While at the in the FIGS. 1 to 4 illustrated elevator 10 is a mechanical emergency limit switch 34 is used with a switch plunger 36, comprises in FIG. 5 illustrated elevator 40 a emergency limit switch 42 with an actuating element in the form of a pressure-sensitive switching film 44.
  • the latter covers the buffer 25 facing Pufferauf Economics Structure 28 of the stop plate 26 and occurs upon impact of the car 16 on the buffer 25 with the latter in mechanical interaction, wherein the pressure load occurring the switching foil 44 is actuated and thereby a power supply of the drive used is interrupted.
  • FIG. 6 the lower end portion of an elevator 50 (not part of the invention) is shown, wherein the same reference numerals are used for identical components as in FIG. 5 ,
  • the elevator 50 differs from the above-described elevator 40 only in that the switching film 44 is not disposed on the Pufferauf Economics Design 28 of the stop plate 26, but between the stop plate 26 and the car 16.
  • the switching foil 44 is actuated by the buffer 25 by the buffer 25th a pressure load on the rear side arranged switching film 44 is exerted on the stop plate 26.

Landscapes

  • Cage And Drive Apparatuses For Elevators (AREA)
  • Types And Forms Of Lifts (AREA)
  • Push-Button Switches (AREA)
  • Keying Circuit Devices (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Claims (12)

  1. Ascenseur pour le transport de charges et/ou de personnes, ledit ascenseur comportant une cabine (16) qui est mobile dans une cage d'ascenseur (12) et à laquelle est couplé un entraînement, et au moins un amortisseur (25) qui est associé à la cabine (16) et/ou à un contrepoids qui est lui-même associé à la cabine (16), ainsi qu'un interrupteur de fin de course d'urgence (34) destiné à arrêter l'entraînement, caractérisé en ce que l'interrupteur de fin de course d'urgence (34) peut être actionné par l'amortisseur ou une surface (28) de contact avec l'amortisseur, associée à l'amortisseur (25), lorsque la cabine (16) approche de l'amortisseur (25), et ce avant que la cabine (16) ne vienne en contact avec l'amortisseur (25).
  2. Ascenseur selon la revendication 1, caractérisé en ce que l'amortisseur (25) est agencé à l'extrémité supérieure et/ou inférieure de la cage d'ascenseur (12) ou sur la cabine (16) et/ou le contrepoids, et en ce que la surface (28) de contact avec l'amortisseur est agencée sur la cabine (16) et/ou le contrepoids respectivement à l'extrémité supérieure et/ou inférieure de la cage d'ascenseur (12).
  3. Ascenseur selon la revendication 1 ou 2, caractérisé en ce que l'interrupteur de fin de course d'urgence (34) peut être actionné mécaniquement.
  4. Ascenseur selon la revendication 1, 2 ou 3, caractérisé en ce que l'interrupteur de fin de course d'urgence (34) peut être actionné par charge de compression.
  5. Ascenseur selon l'une des revendications 1 à 4, caractérisé en ce que l'interrupteur de fin de course d'urgence est fixé à l'amortisseur (25) et peut être actionné par la surface (28) de contact avec l'amortisseur.
  6. Ascenseur selon l'une des revendications 1 à 4, caractérisé en ce que l'interrupteur de fin de course d'urgence (34) est associé à la surface (28) de contact avec l'amortisseur, et peut être actionné par l'amortisseur (25).
  7. Ascenseur selon la revendication 6, caractérisé en ce que l'amortisseur (25) forme une surface de commande (30) qui permet d'actionner un élément de actionnement (36) de l'interrupteur de fin de course d'urgence (34).
  8. Ascenseur selon l'une des revendications précédentes, caractérisé en ce que la surface (28) de contact avec l'amortisseur est agencée sur une butée (26), ladite butée (26) étant agencée sur la cabine (16) et/ou le contrepoids ou dans la cage d'ascenseur (12).
  9. Ascenseur selon la revendication 8, caractérisé en ce que l'interrupteur de fin de course d'urgence (34) comporte un élément d'actionnement (36) qui fait saillie au-dessus de la surface (28) de contact avec l'amortisseur dans la direction de l'amortisseur (25).
  10. Ascenseur selon l'une des revendications précédentes, caractérisé en ce que l'interrupteur de fin de course d'urgence (34) comporte un poussoir de contact (36).
  11. Ascenseur selon la revendication 8, 9 ou 10, caractérisé en ce que l'interrupteur de fin de course d'urgence (34) est agencé sur ou dans la butée (26).
  12. Ascenseur selon la revendication 8, 9, 10 ou 11, caractérisé en ce que la butée (26) a une forme de plaque, l'interrupteur de fin de course d'urgence (34) étant disposé sur le côté arrière (32) de la butée (26), qui est opposé à l'amortisseur (25), et l'élément d'actionnement (36) passe au travers d'une ouverture de passage (38) de la butée (26) et fait saillie en direction de l'amortisseur (25).
EP01104968A 2001-03-01 2001-03-01 Fin de course de sécurité pour ascenseur Expired - Lifetime EP1236670B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES01104968T ES2317860T3 (es) 2001-03-01 2001-03-01 Elevador.
EP01104968A EP1236670B1 (fr) 2001-03-01 2001-03-01 Fin de course de sécurité pour ascenseur
DE50114598T DE50114598D1 (de) 2001-03-01 2001-03-01 Notendschalter für Aufzug
AT01104968T ATE418520T1 (de) 2001-03-01 2001-03-01 Notendschalter für aufzug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01104968A EP1236670B1 (fr) 2001-03-01 2001-03-01 Fin de course de sécurité pour ascenseur

Publications (2)

Publication Number Publication Date
EP1236670A1 EP1236670A1 (fr) 2002-09-04
EP1236670B1 true EP1236670B1 (fr) 2008-12-24

Family

ID=8176634

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01104968A Expired - Lifetime EP1236670B1 (fr) 2001-03-01 2001-03-01 Fin de course de sécurité pour ascenseur

Country Status (4)

Country Link
EP (1) EP1236670B1 (fr)
AT (1) ATE418520T1 (fr)
DE (1) DE50114598D1 (fr)
ES (1) ES2317860T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10781076B2 (en) 2015-08-17 2020-09-22 Otis Elevator Company Elevator buffer system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101958196B (zh) * 2010-09-17 2013-08-21 中国北方车辆研究所 一种行程限位装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0318578A (ja) * 1989-06-13 1991-01-28 Mitsubishi Electric Corp エレベータ用緩衝装置
JP3152001B2 (ja) * 1993-03-26 2001-04-03 三菱電機株式会社 エレベーター装置
FI101373B (fi) * 1993-04-05 1998-06-15 Kone Corp Järjestely ripustus- ja kompensaatioköysien venymän kompensoimiseksi
FI108124B (fi) * 1998-03-18 2001-11-30 Kone Corp Hissin turvalaite
NO323028B1 (no) * 1999-05-14 2006-12-27 Inventio Ag Anordning for utforelse av arbeid i en heissjakt

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10781076B2 (en) 2015-08-17 2020-09-22 Otis Elevator Company Elevator buffer system

Also Published As

Publication number Publication date
EP1236670A1 (fr) 2002-09-04
ES2317860T3 (es) 2009-05-01
ATE418520T1 (de) 2009-01-15
DE50114598D1 (de) 2009-02-05

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