EP2070859B1 - Aufzugssystem - Google Patents

Aufzugssystem Download PDF

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Publication number
EP2070859B1
EP2070859B1 EP06811197.0A EP06811197A EP2070859B1 EP 2070859 B1 EP2070859 B1 EP 2070859B1 EP 06811197 A EP06811197 A EP 06811197A EP 2070859 B1 EP2070859 B1 EP 2070859B1
Authority
EP
European Patent Office
Prior art keywords
footboard
operation mode
car
elevator apparatus
detection switch
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 - Fee Related
Application number
EP06811197.0A
Other languages
English (en)
French (fr)
Other versions
EP2070859A1 (de
EP2070859A4 (de
Inventor
Eiji Ando
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP2070859A1 publication Critical patent/EP2070859A1/de
Publication of EP2070859A4 publication Critical patent/EP2070859A4/de
Application granted granted Critical
Publication of EP2070859B1 publication Critical patent/EP2070859B1/de
Expired - Fee Related 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
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0087—Devices facilitating maintenance, repair or inspection tasks

Definitions

  • the present invention relates to an elevator apparatus whose operation mode can be changed over between an automatic operation mode and a maintenance operation mode.
  • a detection switch such as a piezoelectric mat is installed on a car.
  • a signal is transmitted to an elevator control device to prohibit the operation of the car.
  • an on-car inspection switch provided on the car, a changeover in operation mode to an inspection mode is made (e. g. , see Patent Document 1).
  • Patent Document 1 JP 11-322214 A
  • the operation of the car is prohibited only when the maintenance operator is on the detection switch. Therefore, when the maintenance operator closes a landing door without manipulating the on-car inspection switch and then moves out of a region on the car where the detection switch is installed, the car is automatically operated with the maintenance operator thereon.
  • the present invention has been made to solve the above-mentioned problem, and it is therefore an object of the present invention to provide an elevator apparatus that makes it possible to more reliably prevent a car from being automatically operated with a maintenance operator thereon.
  • An elevator apparatus includes: a car; a footboard provided on the car in a vicinity of an edge thereof on a landing doorway side and designed to be displaceable from a normal position to a weighting position through addition of a weight; a holding mechanism for mechanically holding the footboard displaced to the weighting position at the weighting position; a release manipulation portion for releasing holding of the footboard at the weighting position by the holding mechanism; a detection switch for detecting a displacement state of the footboard; and a control device for controlling operation of the car based on a manipulation state of the detection switch.
  • Fig. 1 is a perspective view showing a car of an elevator apparatus according to Embodiment 1 of the present invention.
  • a car 1 has a car frame (not shown) suspended within a hoistway, and a car chamber 2 supported by the car frame.
  • a front surface of the car chamber 2 is provided with a car doorway 2a.
  • the car doorway 2a is opened/closed by a pair of car doors 3.
  • a landing doorway 4 is provided at a landing of each stop floor.
  • the landing doorway 4 is opened/closed by a pair of landing doors (not shown).
  • a footboard 5 is provided on the car chamber 2 in the vicinity of an edge thereof on the landing doorway 4 side.
  • An end of the footboard 5 on the other side of the landing doorway 4 (rear end of the footboard 5) is connected to an upper portion of the car chamber 2 by means of a plurality of hinges 6.
  • the footboard 5 can be turned around an axis parallel to a width direction of the car 1.
  • a plurality of springs 7 are interposed between an upper surface of the car chamber 2 and a lower surface of the footboard 5.
  • the footboard 5 is held at a normal position by the springs 7 when a maintenance operator is not on the footboard 5.
  • the springs 7 are compressed, and the footboard 5 is turned in such a direction that an end thereof on the landing doorway 4 side (front end thereof) is depressed. As a result, the footboard 5 is displaced to a weighting position.
  • a front end surface of the footboard 5 is provided with a protrudable/retractable latch 8.
  • a latch engagement member 9, with which the latch 8 is engaged when the footboard 5 is displaced to the weighting position, is fixed on the car chamber 2.
  • a release handle 11 serving as a release manipulation portion for releasing the holding of the footboard 5 at the weighting position by the holding mechanism 10 is provided on the footboard 5 in the vicinity of the front end thereof.
  • the release handle 11 Bymanipulating the release handle 11 in a rotating manner in the direction of an arrow A of Fig. 1 , the latch 8 is retracted to the footboard 5 side and thereby disengaged from the latch engagement member 9.
  • the front end of the footboard 5 is pushed up by the springs 7, so the footboard 5 is returned to the normal position.
  • a detection switch 12 for detecting a displacement state of the footboard 5 is provided on the car chamber 2.
  • the detection switch 12 is mechanically manipulated through displacement of the footboard 5 to the weighting position.
  • a control device 13 controls the operation of the car 1 based on a manipulation state of the detection switch 12.
  • Fig. 2 is a circuit diagram showing an example of a circuitry of the control device 13 of Fig. 1 .
  • the detection switch 12 is connected in series to a power supply switch 14 for making a changeover between an operable state and an inoperable state.
  • the detection switch 12 is connected to an automatic operation side thereof when the footboard 5 is at the normal position, and to a maintenance operation side thereof when the footboard 5 is at the weighting position.
  • An operation mode changeover switch 15 for making a changeover in operation mode between an automatic operation mode and a maintenance operation mode is connected in series to the detection switch 12.
  • the operationmode changeover switch 15, which is provided on the car 1, is manipulated by the maintenance operator on the car 1.
  • a normal operation command issuing relay 16 is connected to a terminal of the operation mode changeover switch 15 on an automatic operation side thereof.
  • An UP operation command issuing relay 18 and a DOWN operation command issuing relay 19 are connected in parallel to a terminal of the operation mode changeover switch 15 on a maintenance operation side thereof via a maintenance running switch 17.
  • the detection switch 12 is normally connected to the automatic operation side thereof. Accordingly, when the operation mode changeover switch 15 is connected to the automatic operation side thereof while a contact of the power supply switch 14 is closed, the normal operation command issuing relay 16 is energized, so the operation mode is set to the automatic operation mode. In the automatic operation mode, the car 1 is automatically operated in response to calls from landings and calls from within the car 1.
  • the operation mode is changed over to the maintenance operationmode.
  • the maintenance operation mode calls from within the car 1 and calls from the landings are invalidated, and the maintenance operator manipulates the maintenance running switch 17 to raise/lower the car 1 at low speed.
  • the footboard 5 displaced to the weighting position is mechanically held at the weighting position by the holding mechanism 10 until the release handle 11 is manipulated. Therefore, even in the unlikely event that the maintenance operator closes the landing doors without manipulating the operation mode changeover switch 15 and moves out of a region on the car 1 where the footboard 5 is provided, the car 1 is not automatically operated. That is, the car 1 can be more reliably prevented from being automatically operated with the maintenance operator thereon.
  • the footboard 5 is mechanically held at the weighting position by the holding mechanism 10. Therefore, even if the maintenance operator carelessly forgets to manipulate the power supply switch 14 or the operation mode changeover switch 15 by an oversight and steps onto the car 1 during the repair of a malfunction involving a blackout, the detection switch 12 is manipulated by the footboard 5. Therefore, the car 1 is prevented from being operated.
  • the release handle 11 is provided on the footboard 5 in the vicinity of the front end thereof, so the release handle 11 can be manipulated after the maintenance operator has moved onto the landing.
  • the operation mode changeover switch 15 is provided on the car 1 separately from the detection switch 12 so as to permit maintenance operation only when the detection switch 12 is actuated and the operation mode changeover switch 15 is changed over to the maintenance operation side thereof, and to permit automatic operation only when the detection switch 12 is released and the operation mode changeover switch 15 is changed over to the automatic operation side thereof. Therefore, an erroneous changeover in operation mode can be prevented more reliably.
  • the release handle 11 and the latch 8 may be integrated with each other.
  • a commercial door component having a handle integrated with a latch can be employed as an example. As a result, a cost reduction can be achieved.
  • the latch 8 and the latch engagement member 9 are provided on the footboard 5 and the car chamber 2, respectively.
  • the latch engagement member 9 and the latch 8 may be provided on the footboard 5 and the car chamber 2, respectively.
  • Fig. 3 is a perspective view showing a car of an elevator apparatus according to Embodiment 2 of the present invention. Although omitted in Fig. 1 for the sake of simplicity, a structure for supporting the car doors 3 is also illustrated in Fig. 3 .
  • a release button 21 serving as a release manipulation portion for releasing the holding of the footboard 5 at the weighting position by the holding mechanism 10 is provided on an end surface of the footboard 5 on the landing doorway 4 side thereof (front end surface of the footboard 5) .
  • the latch 8 is retracted to the footboard 5 side and thereby disengaged from the latch engagement member 9.
  • the front end of the footboard 5 is pushed up by the springs 7 ( Fig. 1 ), so the footboard 5 is returned to the normal position.
  • the girder 22 is provided with an opening portion 22a for exposing the release button 21 to the landing side.
  • the release button 21 is manipulated through the opening portion 22a from the landing side.
  • a door rail 23 for guiding the opening/closing movements of the car doors 3 is fixed to the girder 22.
  • Each of the car doors 3 has a door panel 24, a door hanger 25 fixed to an upper portion of the door panel 24, and a pair of hanger rollers 26 provided on the door hanger 25 to be rolled on the door rail 23.
  • the car doors 3 are suspended from the door rail 23.
  • Embodiment 2 of the present invention is identical to Embodiment 1 of the present invention in other constructional details.
  • the release button 21 is provided on the front end surface of the footboard 5. Therefore, the release button 21 can be more reliably manipulated from each of the landings.
  • the girder 22 is provided with the opening portion 22a to allow the release button 21 to be manipulated through the opening portion 22a. Therefore, the release button 21 can be more reliably manipulated from each of the landings.
  • the release button 21 may be provided on the landing doorway 4 side with respect to the girder 22. Thus, the release button 21 is not easily manipulated on the car 1. As a result, the release button 21 can be more reliably manipulated from each of the landings.
  • Fig. 4 is a circuit diagram showing an example of a circuitry of a control device of an elevator apparatus according to Embodiment 3 of the present invention.
  • the detection switch 12 serves also as the operation mode changeover switch 15. That is, when the footboard 5 is displaced to the weighting position through addition of a weight, the detection switch 12 is changed over to the maintenance operation side thereof, so the operation mode is changed over to the maintenance operation mode. When the footboard 5 is returned to the normal position, the detection switch 12 is returned to the automatic operation side thereof, so the operation mode is changed over to the automatic operation mode.
  • Embodiment 3 of the present invention is identical to Embodiment 1 or 2 of the present invention in other constructional details.
  • the operation mode is changed over to the maintenance operation mode when the footboard 5 is displaced to the weighting position, and returned to the automatic operation mode when the footboard 5 is returned to the normal position. Therefore, the operation mode changeover switch 15 is not required. As a result, a cost reduction can be achieved, and an erroneous changeover in operation mode can be prevented from being made due to a failure to manipulate the operation mode changeover switch 15 or an erroneous manipulation thereof.
  • the release handle 11 or the release button 21 is illustrated as the release manipulation portion.
  • the release manipulation portion should not be limited in shape or mechanism thereto, and may be realized as, for example, a knob.
  • the release manipulation portion is not necessarily manipulated in a rotating manner or a pressing manner, and may be manipulated in a pulling manner.
  • the footboard 5 is returned to the normal position due to restoring forces of the springs 7.
  • an elastic body such as rubber or the like may be employed as an example of restoration means for restoring the footboard 5 to the normal position.
  • the footboard 5 is turned to be displaced between the normal position and the weighting position in each of the foregoing examples.
  • the footboard 5 may be designed, for example, to be displaced vertically as a whole.
  • the single footboard 5 is employed in each of the foregoing examples.
  • the footboard 5 may be divided into a plurality of boards.
  • the single detection switch 12 is employed in each of the foregoing examples, it is also appropriate to employ a plurality of detection switches and disable automatic operation when displacement of the footboard 5 to the weighting position is detected by any one of the detection switches.

Landscapes

  • Elevator Control (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Claims (9)

  1. Aufzugsvorrichtung, mit:
    einer Kabine (1);
    gekennzeichnet durch
    ein Trittbrett (5), das auf der Kabine (1) in einer Umgebung einer Kante derselben auf einer Seite einer Stockwerkstür (4) vorgesehen ist und ausgestaltet ist, um durch Aufbringen eines Gewichts aus einer Normalstellung in eine Belastungsstellung verschiebbar zu sein;
    einen Haltemechanismus (10) zum mechanischen Halten des Trittbretts (5) in der Belastungsstellung, wenn dieses in die Belastungsstellung verschoben ist;
    einen Freigabebetätigungsabschnitt (11, 21) zum Freigeben des Haltens des Trittbretts (5) in der Belastungsstellung durch den Haltemechanismus (10)
    einen Erfassungsschalter (12) zum Erfassen eines Verschiebungszustands des Trittbretts (5); und
    eine Steuereinrichtung (13) zum Steuern des Betriebs der Kabine (1) auf Grundlage eines Betätigungszustands des Erfassungsschalters (12).
  2. Aufzugsvorrichtung gemäß Anspruch 1, wobei der Freigabebetätigungsabschnitt (11) auf dem Trittbrett (5) in einer Umgebung eines Endes desselben auf der Seite einer Stockwerkstür (4) vorgesehen ist.
  3. Aufzugsvorrichtung gemäß Anspruch 1, wobei der Freigabebetätigungsabschnitt (21) an einer Endfläche des Trittbretts (5) auf der Seite einer Stockwerkstür (4) desselben vorgesehen ist.
  4. Aufzugsvorrichtung gemäß Anspruch 1, wobei die Kabine (1) an einem oberen Abschnitt einer Endfläche derselben mit einem Balken (22) zum Halten einer Kabinentür (3) versehen ist; und
    der Balken (22) mit einem Öffnungsabschnitt (22a) zum Betätigen des Freigabebetätigungsabschnitts (11, 21) von der Seite einer Stockwerkstür (4) her, versehen ist.
  5. Aufzugsvorrichtung gemäß Anspruch 1, wobei die Kabine (1) an einem oberen Abschnitt einer Vorderfläche derselben mit einem Balken (22) zum Halten einer Kabinentür (3) versehen ist; und
    der Freigabebetätigungsabschnitt (11, 21) auf der Seite einer Stockwerkstür (4) mit Bezug auf den Balken (22) vorgesehen ist.
  6. Aufzugsvorrichtung gemäß Anspruch 1, wobei der Haltemechanismus (10) eine Verriegelung (8) aufweist, die in einer ausstellbaren und zurückziehbaren Weise an dem Trittbrett (5) oder der Kabine (1) vorgesehen ist, und eine Verriegelungseingriffselement (9) an dem Anderen aus dem Trittbrett (5) und der Kabine (1) vorgesehen ist, um es der Verriegelung (8) zu gestatten damit in Eingriff zu kommen, wenn das Trittbrett (5) in die Belastungsstellung verschoben ist.
  7. Aufzugsvorrichtung nach Anspruch 6, wobei die Verriegelung (8) und der Freigabebetätigungsabschnitt (11, 21) miteinander integriert sind.
  8. Aufzugsvorrichtung gemäß Anspruch 1, wobei
    die Kabine (1) darauf vorgesehen, einen Betriebsartumschalter (15) zum Durchführen einer Umschaltung einer Betriebsart während des Betriebs zwischen einer Automatikbetriebsart und einer Wartungsbetriebsart aufweist; und
    die Steuereinrichtung (13) eine Umschaltung während des Betriebs in die Wartungsbetriebsart nur dann durchführt, wenn das Vorhandensein des Trittbretts (5) in der Belastungsstellung durch den Erfassungsschalter (12) erfasst wird, und wobei der Betriebsartumschalter (15) auf eine Wartungsbetriebsseite desselben umgeschaltet wird, und eine Umschaltung während des Betriebs in die Automatikbetriebsart nur dann durchführt, wenn das Vorhandensein des Trittbretts (5) in der Normalstellung durch den Erfassungsschalter (12) erfasst wird, und wobei der Betriebsartumschalter (15) auf die Automatikbetriebsseite desselben umgeschaltet wird.
  9. Aufzugsvorrichtung gemäß Anspruch 1, wobei der Erfassungsschalter (12) auch als ein Betriebsartumschalter zum Durchführen einer Umschaltung während des Betriebs zwischen einer Automatikbetriebsart und einer Wartungsbetriebsart, dient.
EP06811197.0A 2006-10-04 2006-10-04 Aufzugssystem Expired - Fee Related EP2070859B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2006/319857 WO2008041332A1 (fr) 2006-10-04 2006-10-04 Système d'ascenseur

Publications (3)

Publication Number Publication Date
EP2070859A1 EP2070859A1 (de) 2009-06-17
EP2070859A4 EP2070859A4 (de) 2013-02-20
EP2070859B1 true EP2070859B1 (de) 2014-04-16

Family

ID=39268199

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06811197.0A Expired - Fee Related EP2070859B1 (de) 2006-10-04 2006-10-04 Aufzugssystem

Country Status (4)

Country Link
EP (1) EP2070859B1 (de)
JP (1) JP5037330B2 (de)
CN (1) CN101365641B (de)
WO (1) WO2008041332A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103889873B (zh) * 2011-10-24 2017-02-15 株式会社日立制作所 附带运行切换系统的电梯
FI125132B (fi) * 2014-01-21 2015-06-15 Kone Corp Turvalaitejärjestelyllä varustettu hissi

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54107073U (de) * 1978-01-14 1979-07-27
JPH0459582A (ja) * 1990-06-29 1992-02-26 Toshiba Corp エレベータの点検用安全装置
JPH11322214A (ja) * 1998-05-14 1999-11-24 Toshiba Elevator Co Ltd エレベータの安全装置
JP4245209B2 (ja) * 1998-09-03 2009-03-25 東芝エレベータ株式会社 エレべーター
WO2001081225A1 (fr) * 2000-04-26 2001-11-01 Mitsubishi Denki Kabushiki Kaisha Dispositif de commutation en mode de maintenance pour un ascenseur
JP2005170565A (ja) * 2003-12-09 2005-06-30 Mitsubishi Electric Building Techno Service Co Ltd 踏み板伝達装置

Also Published As

Publication number Publication date
CN101365641A (zh) 2009-02-11
WO2008041332A1 (fr) 2008-04-10
CN101365641B (zh) 2012-04-18
JP5037330B2 (ja) 2012-09-26
EP2070859A1 (de) 2009-06-17
EP2070859A4 (de) 2013-02-20
JPWO2008041332A1 (ja) 2010-02-04

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