EP2301881A1 - Installation d'ascenseur dotée d'un dispositif de verrouillage - Google Patents

Installation d'ascenseur dotée d'un dispositif de verrouillage Download PDF

Info

Publication number
EP2301881A1
EP2301881A1 EP10010465A EP10010465A EP2301881A1 EP 2301881 A1 EP2301881 A1 EP 2301881A1 EP 10010465 A EP10010465 A EP 10010465A EP 10010465 A EP10010465 A EP 10010465A EP 2301881 A1 EP2301881 A1 EP 2301881A1
Authority
EP
European Patent Office
Prior art keywords
locking
arm
installation according
guide rail
elevator installation
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
Application number
EP10010465A
Other languages
German (de)
English (en)
Other versions
EP2301881B1 (fr
Inventor
Klaus Schmidt
Wilfried Michael Meyer
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.)
Aufzugswerke M Schmitt & Sohn & Co GmbH
Original Assignee
Aufzugswerke M Schmitt & Sohn & Co 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 Aufzugswerke M Schmitt & Sohn & Co GmbH filed Critical Aufzugswerke M Schmitt & Sohn & Co GmbH
Publication of EP2301881A1 publication Critical patent/EP2301881A1/fr
Application granted granted Critical
Publication of EP2301881B1 publication Critical patent/EP2301881B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B17/00—Hoistway equipment
    • B66B17/34—Safe lift clips; Keps
    • 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
    • B66B5/0087—Devices facilitating maintenance, repair or inspection tasks

Definitions

  • the invention relates to an elevator installation with an elevator car, a stationarily arranged guide rail device with at least one guide rail and a drive motor for moving the elevator car up and down along the at least one guide rail, wherein the elevator car has a car roof and an upper cross member on which a locking device is arranged, which is engageable in a locking position with the at least one guideway in locking engagement.
  • Elevator cabs can be moved to maintain the elevator in an upper end position, with a fitter is staying on the cabin roof during maintenance.
  • locking devices are known, which are turned on by the fitter during maintenance to fix the elevator car. It Such locking devices are known, which come into the locking position on the arranged in the shaft stationary guide rails of the elevator car via a locking bolt in engagement.
  • Such locking devices may jam in the locking position, when during maintenance, the detected by the brake or the drive elevator car moves slightly up or down. In this case, the elevator car will exert an upward or downward force on the locking device, which leads to jamming of the locking device. Because of the high forces that occur, the locking device can no longer be released by hand.
  • Object of the present invention is to provide an elevator system with locking device, which is easily and safely solvable from the locked position.
  • this object is achieved with the subject matter of claim 1. It is an elevator installation with an elevator car, a stationarily arranged guide rail device with at least one guide rail and a drive motor in order to move the elevator car up and down along the at least one guide rail. It is provided that the elevator car has a car roof and an upper cross member on which a locking device is arranged, which can be brought into locking engagement with the at least one guide track in locking engagement.
  • the locking device has at least one pivoting arm, which with its one end on the upper cross member of the elevator car is hinged and having with its free other end a locking device; that the at least one swivel arm is arranged and mounted on the cross member so that it can be pivoted into a rest position substantially parallel to the cross member and into an upwardly deflected locking position; in that the locking device arranged on the end of the at least one pivoting arm can be brought into locking engagement with the at least one guide rail in the locking position of the pivoting arm; and the at least one swivel arm has a length adjustment device.
  • the elevator car may possibly be acted upon by the weight of the cabin and / or by the counterweight down or up and cause by a corresponding possibly minimal up and / or down movement jamming of the locking bolt.
  • Due to the length adjustability of Schwenkarms is such a locking device of the elevator system according to the invention even with verklemmtem locking bolt by hand easily solvable by the swing arm is adjusted in its length so that the locking bolt is relieved and can be removed by hand.
  • the length-adjustable swivel arm acts as a lifting device for unlocking in this case.
  • the length adjustment device is self-locking. This offers the advantage that a separate locking device for fixing the set length of the pivot arm is unnecessary and further operator error can be avoided.
  • the length adjustment is a helical gear.
  • the helical gear has the advantage that the length adjustment of the pivot arm is a relatively small adjustment force spent.
  • a left pivot arm is provided for locking on a left guide rail and a right pivot arm for locking on a right guide rail, wherein the elevator car is arranged between the left and the right guide rail. Due to the symmetrical design of the locking device, on the one hand, a good, in particular uniform load distribution is achieved and, on the other hand, the redundant design with two pivoting arms offers a high degree of safety.
  • the helical gear is designed as a turnbuckle with a legal and a left-hand thread and two threaded rods that engage in the turnbuckle.
  • the helical gear is formed from a double nut with a right-hand and a left-hand thread and two threaded rods which engage in the double nut.
  • the helical gear is formed from a double screw with a right-hand and a left-hand thread and two nuts which engage over the twin-screw.
  • the helical gear is formed from a sleeve-shaped nut and an engaging in the sleeve-shaped nut threaded rod, wherein the nut is rigidly connected to the pivot arm and the threaded rod is rotatably connected to the pivot arm or vice versa.
  • auxiliary elements may be provided to reduce the operating force by utilizing the lever law, for example, jaw surfaces for attaching a wrench or openings for inserting a lever or the like.
  • the length adjustment device is integrated in the swivel arm.
  • the swivel arm can thus be formed, for example, essentially from two threaded rods, which are interconnected by a double nut. Such Double nut is also called turnbuckle.
  • the swivel arm interacts directly or indirectly with a switching element arranged on the car roof, wherein the switching element is actuated as soon as the swivel arm is pivoted out of its rest position.
  • the switching element may preferably be provided in order to avoid an erroneous start-up of the elevator car.
  • an actuating element can be arranged on the pivot arm, which cooperates with the switching element.
  • the switching element is designed as a switch which interrupts the circuit of the elevator motor directly or indirectly.
  • the switch can be connected to an input of a control device, the u. a. controls the operation of the elevator motor.
  • the switching element is designed as a non-contact sensor.
  • the sensor may be, for example, a magnetic sensor, such as a Hall sensor, or an optical sensor.
  • the pivot arm locking device has a hinged locking bolt receptacle and the at least one guide rail has a lock plate-like locking plate and a locking bolt is provided which in locking engagement with the locking bolt receptacle of the locking device and the locking plate-like locking plate the at least one guide rail cooperates. It is therefore intended to form the locking device according to the principle of positive engagement.
  • Fig. 1 and 2 show a locking device 1 an elevator installation, which is arranged on the cabin roof of an elevator car 2.
  • the elevator car 2 is guided on a left T-shaped guide rail 21l and a right T-shaped guide rail 21r.
  • the elevator car 2 is driven by a drive motor, not shown, for vertical movement along the guide rails.
  • a cable device not shown, may be provided, which is driven via a driven by the drive motor traction sheave.
  • the cable device it is also possible to provide a drive device which acts on the floor of the elevator car and is hydraulically driven.
  • the drive device can thus be designed differently as is known in the elevator systems.
  • the elevator car is guided on one or more stationary arranged guide rails 21l, 21r and that the locking device 1 is arranged on the car roof and the locking device 1 in the locking position with one of the two Guide rails 21l, 21r cooperates, so that the elevator car 2 is held locked to the guide rails.
  • the locking device 1 has two pivot arms 11, which are pivotally connected via pivot bearings 221 with a arranged on the car roof cross member 22.
  • the pivot arms 11 are in the rest position on the cross member 22, wherein the longitudinal axes of the pivot arms 11 are parallel to the longitudinal axis of the cross member 22.
  • the right pivot arm is in the rest position.
  • the two pivot arms 11 are swiveled in the direction of the left or right guide rail 21l, 21r and fixed on the guide rail by means of a locking bolt 113r.
  • the pivot arms 11 have at their end facing away from the pivot bearings 221 an articulated locking bolt receptacle 113 on.
  • the locking bolt receptacle 113 is formed with a U-shaped end portion which, like the guide rail has a through hole which is intended to receive the locking bolt 113r and which is penetrated in the fixed state of the pivot arm 11 of the locking bolt 113r.
  • the locking bolt 113r may, for example, be a fastening screw which engages in an internal thread of the locking bolt receptacle 113.
  • the locking bolt receptacle 113 and the locking bolt 113r form a positive connection device which engages in the through hole of the guide rail.
  • the pivot arms 11 are formed adjustable in length by a trained as a helical tensioning device.
  • the helical gear is at the in FIG. 2 illustrated embodiment designed as a turnbuckle 112. It has as connections an internal left-hand thread and an internal right-hand thread for two threaded rods 111, which have a corresponding left-hand or right-hand thread.
  • the turnbuckle 112 is formed as a yoke-shaped element with two terminals each formed as an internal thread.
  • the length of the swing arm 11 is adjusted by turning the turnbuckle 112 so that the through hole of the latch pin receptacle 113 is aligned with the through hole of the respective guide rail 21l and 21r, respectively, so that the latch bolt 113r is insertable.
  • the elevator car 2 will exert an upward or downward force on the latch bolt 113r, which jams the latch bolt 113r in the latch bolt receptacle 113.
  • this force is directed upward because a counterweight arranged on the hoisting device has a higher mass than the empty elevator car 2 and the fitter standing on the elevator car together.
  • the locking bolt 113r is not solvable by hand due to the high forces occurring.
  • the locking bolt 113r can be relieved by changing the length of the pivot arm 11, wherein the change in length can be brought about by turning the double nut 112.
  • the pivot arm 11 further has a strip-shaped actuating element 114, which cooperates in the rest position of the pivot arm with a arranged on the cross member 22 safety switch 12.
  • the Safety switch 12 may be, for example, an electrical switch which is in the circuit of the elevator motor (in Fig. 1 and 2 not shown) is arranged and which interrupts the circuit when the associated pivot arm 11 is pivoted from the rest position. But it can also be provided that the safety switch 12 cooperates with an elevator control and triggers a switching pulse when the associated pivot arm 11 is pivoted from the rest position. It can also be provided that the safety switch is a sensor, for example a magnetic or an optical sensor.
  • the two safety switches 12 are connected in series, so that the circuit of the elevator motor is already interrupted when one of the safety switch 12 is actuated.

Landscapes

  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
EP20100010465 2009-09-29 2010-09-24 Installation d'ascenseur dotée d'un dispositif de verrouillage Not-in-force EP2301881B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910048489 DE102009048489A1 (de) 2009-09-29 2009-09-29 Aufzugsanlage mit Verriegelungseinrichtung

Publications (2)

Publication Number Publication Date
EP2301881A1 true EP2301881A1 (fr) 2011-03-30
EP2301881B1 EP2301881B1 (fr) 2012-05-30

Family

ID=43332732

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100010465 Not-in-force EP2301881B1 (fr) 2009-09-29 2010-09-24 Installation d'ascenseur dotée d'un dispositif de verrouillage

Country Status (3)

Country Link
EP (1) EP2301881B1 (fr)
DE (1) DE102009048489A1 (fr)
PT (1) PT2301881E (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3395741A4 (fr) * 2015-12-23 2019-03-27 Mac Puar, S.A. Dispositif pour le déblocage de parachute d'un ascenseur
DE112014000110B4 (de) 2013-04-03 2019-08-14 China University Of Mining And Technology Führungsschienenseil-Ablenkungsverhinderungsmechanismus und Verfahren für paralleles Weichseil-Aufhängungssystem

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11228049A (ja) * 1998-02-10 1999-08-24 Mitsubishi Electric Corp エレベータのかご保持装置
EP1437320A1 (fr) * 2001-05-30 2004-07-14 Mitsubishi Denki Kabushiki Kaisha Dispositif elevateur et dispositif de limitation de mouvement de l'automobile de celui-ci
JP2007246212A (ja) * 2006-03-15 2007-09-27 Hitachi Building Systems Co Ltd エレベーターの乗りかご固定装置
EP1916214A1 (fr) * 2005-05-31 2008-04-30 Mitsubishi Denki Kabushiki Kaisha Dispositif pour ascenseur

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11228049A (ja) * 1998-02-10 1999-08-24 Mitsubishi Electric Corp エレベータのかご保持装置
EP1437320A1 (fr) * 2001-05-30 2004-07-14 Mitsubishi Denki Kabushiki Kaisha Dispositif elevateur et dispositif de limitation de mouvement de l'automobile de celui-ci
EP1916214A1 (fr) * 2005-05-31 2008-04-30 Mitsubishi Denki Kabushiki Kaisha Dispositif pour ascenseur
JP2007246212A (ja) * 2006-03-15 2007-09-27 Hitachi Building Systems Co Ltd エレベーターの乗りかご固定装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112014000110B4 (de) 2013-04-03 2019-08-14 China University Of Mining And Technology Führungsschienenseil-Ablenkungsverhinderungsmechanismus und Verfahren für paralleles Weichseil-Aufhängungssystem
EP3395741A4 (fr) * 2015-12-23 2019-03-27 Mac Puar, S.A. Dispositif pour le déblocage de parachute d'un ascenseur

Also Published As

Publication number Publication date
EP2301881B1 (fr) 2012-05-30
PT2301881E (pt) 2012-07-17
DE102009048489A1 (de) 2011-04-07

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