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EP2444351A1 - Dispositif d'ascenseur - Google Patents

Dispositif d'ascenseur Download PDF

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Publication number
EP2444351A1
EP2444351A1 EP06822242A EP06822242A EP2444351A1 EP 2444351 A1 EP2444351 A1 EP 2444351A1 EP 06822242 A EP06822242 A EP 06822242A EP 06822242 A EP06822242 A EP 06822242A EP 2444351 A1 EP2444351 A1 EP 2444351A1
Authority
EP
European Patent Office
Prior art keywords
lock release
release key
key
lock
mode
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.)
Withdrawn
Application number
EP06822242A
Other languages
German (de)
English (en)
Other versions
EP2444351A4 (fr
Inventor
Yoshihiko Koizumi
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 EP2444351A1 publication Critical patent/EP2444351A1/fr
Publication of EP2444351A4 publication Critical patent/EP2444351A4/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B66B13/02—Door or gate operation
    • B66B13/14—Control systems or devices
    • B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
    • 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
    • B66B13/02—Door or gate operation
    • B66B13/14—Control systems or devices
    • B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
    • B66B13/18—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position without manually-operable devices for completing locking or unlocking of doors

Definitions

  • This invention relates to an elevator apparatus in which a lock device of a landing door device can be released from a landing side by means of a lock release key.
  • a maintenance worker when performing operation on a car or in a hoistway pit, a maintenance worker (or installation operator) releases a lock device of a landing door device by means of a dedicated lock release key, and opens a landing door manually to enter the hoistway (see, for example, Patent Document 1).
  • the maintenance worker operates a manual restoring type switch provided in a vicinity of the landing entrance of the lowermost floor or on the car, thereby switching an operation mode of the car to a maintenance mode and preventing the car from being automatically operated in a normal mode.
  • an object of this invention is therefore to provide an elevator apparatus capable of more reliably preventing the car from being automatically operated, with the maintenance worker being in the hoistway.
  • An elevator apparatus of this invention includes: a lock device provided in a landing door device; a lock release key for releasing the lock device from a landing side; and an operation control device for controlling operation of a car through a plurality of operation modes including a normal mode and a maintenance mode, the elevator apparatus further including a key retaining device which retains the lock release key and restricts removal of the lock release key, and which allows the removal of the lock release key where a predetermined operation is performed on the lock release key, in which the operation control device sets the operation mode to the normal mode when the lock release key is retained in the key retaining device, and sets the operation mode to the maintenance mode when the lock release key is removed from the key retaining device.
  • an elevator apparatus of this invention includes: a lock device provided in a landing door device; a lock release key for releasing the lock device from a landing side; and an operation control device for controlling operation of a car through a plurality of operation modes including a normal mode and a maintenance mode, in which the lock device is provided with a movable member that can be displaced between a first position and a second position, in which the movable member is displaced from the first position to the second position in accordance with lock releasing operation by means of the lock release key, and once being displaced to the second position, the movable member remains in the second position until the movable member is restored to the first position by manual operation, and in which the operation control device sets the operation mode to the normal mode when the movable member is in the first position, and sets the operation mode to the maintenance mode when the movable member is in the second position.
  • Fig. 1 is a front view of a lock device of an elevator apparatus according to Embodiment 1 of this invention
  • Fig. 2 is a front view of the lock device in Fig. 1 in a released state
  • Fig. 3 is a side view of a main portion in Fig. 2 .
  • a latch member 1 is fixed to a hanger case (not shown) fixed to an upper portion of a landing entrance.
  • a hook portion 1a is formed by bending one end of the latch member 1.
  • a latch 2 is rockably mounted to a door hanger (not shown) fixed to an upper portion of a landing door.
  • An engagement portion 2a is provided at the forward end of the latch 2. When the landing door is in a fully closed state, the engagement portion 2a is engaged with the hook portion 1a, whereby movement of the landing door in the opening direction is prevented.
  • the latch 2 is provided with a stationary side interlock roller 3 and a movable side interlock roller 4.
  • the stationary side interlock roller 3 is arranged coaxially with the rock shaft of the latch 2.
  • the movable side interlock roller 4 is rockable integrally with the latch 2.
  • a lock switch 5 for detecting whether or not the latch 2 is at a position where the latch 2 is engaged with the latch member 1.
  • a contact member 6 coming into contact with the lock switch 5 when the latch 2 is at a position where the latch 2 is engaged with the latch member 1.
  • a bar-like push-up member 7 vertically movable within a predetermined range, and a support member 8 for supporting the push-up member 7 in a state in which it is vertically movable.
  • the landing door is provided with a keyhole portion 9.
  • the keyhole portion 9 is provided with a keyhole 9a through which a lock release key 10 is inserted when the landing door is opened from the landing side.
  • Fig. 4 is a perspective view of a key retaining device 11 for retaining the lock release key 10 in Fig. 1
  • Fig. 5 is a perspective view of the lock release key 10 in a rotated state
  • Fig. 6 is a perspective view of the key retaining device 11 in Fig. 4 with the lock release key 10 removed therefrom.
  • the lock release key 10 is kept with its end portion inserted into the key retaining device 11.
  • the key retaining device 11 is installed, for example, in a landing operation panel (not shown) on a lounge floor. In order to use the lock release key 10, the cover of the landing operation panel is opened, and the lock release key 10 is removed from the key retaining device 11.
  • the key retaining device 11 retains the lock release key 10 and restricts the removal of the lock release key 10. Further, the key retaining device 11 performs a predetermined operation (in this case, rotating operation and drawing operation) on the lock release key 10, thereby allowing removal of the lock release key 10. More specifically, the key retaining device 11 includes a key cylinder 12 and a key retaining member 13 rotatably provided in the key cylinder 12.
  • the key cylinder 12 is provided with a retaining member accommodating hole 12a for accommodating the key retaining member 13.
  • a retaining member accommodating hole 12a for accommodating the key retaining member 13.
  • an axial guide groove 12b extending in the axial direction of the key cylinder 12, and a circumferential guide groove 12c extending in the circumferential direction of the key cylinder 12.
  • the axial guide groove 12b is provided to extend from the opening end portion of the retaining member accommodating hole 12a to the bottom portion of the retaining member accommodating hole 12a.
  • the circumferential guide groove 12c is provided to extend over a range of approximately 90 degrees from the end portion of the axial guide groove 12b.
  • the key retaining member 13 is provided with a main groove 13a into which an end portion of the lock release key 10 is inserted.
  • an insertion portion 10a which is inserted into the main groove 13a.
  • a protrusion 10b to be engaged with the guide grooves 12b and 12c.
  • the key retaining device 11 is connected to a control panel 14 serving as an operation control device for controlling the operation of the car.
  • the control panel 14 sets the operation mode to a normal mode (automatic operation mode), and, when the lock release key 10 is removed from the key retaining device 11, it sets the operation mode to a maintenance mode.
  • the control panel 14 sets the operation mode to the normal mode, and, when the lock release key 10 is in a position other than the retaining position, it sets the operation mode to the maintenance mode.
  • the protrusion 10b is simultaneously brought into contact with first and second electrodes (not shown) provided on the inner surface of the circumferential guide groove 12c, and conduction is effected between the first and second electrodes through the protrusion 10b.
  • the control panel 14 detects that the lock release key 10 is in the retaining position. Conversely, when the circuit between the electrodes is cut off, it is detected by the control panel 14 that the lock release key 10 is off the retaining position.
  • the car In the normal mode, the car is automatically operated in response to a call from the landing and the car. In the maintenance mode, a call from the landing and the car is made ineffective, and the car is operated manually at low speed by the maintenance worker (or installation operator). Further, when the control panel 14 determines that the landing door has been forced to open when the car has not landed yet, the control panel 14 prohibits the traveling of the car.
  • Fig. 7 is a flowchart illustrating a car starting operation at the control panel 14 illustrated in Fig. 4 .
  • the control panel 14 checks on the start conditions (Step S1).
  • it is sequentially checked whether the car door is in a fully closed state and whether the landing door is in a fully closed state (Steps S2 and S3).
  • Step S4 the car continues to remain at rest (Step S4), and the checking of the start conditions is executed again.
  • Step S5 When both the car door and the landing door are in a fully closed state, it is checked whether the lock release key 10 is in the retaining position or not (Step S5). Further, when the lock release key 10 is in the retaining position, the operation mode is set to the normal mode, and automatic operation is allowed (Step S6). When the lock release key 10 is not in the retaining position, the operation mode is set to the maintenance mode, and automatic operation becomes impossible, with solely manual operation being allowed.
  • the lock release key 10 for opening the landing door from the landing side is taken out of the key retaining device 11, whereby the operation mode is forcibly switched to the maintenance mode, and the automatic operation is prohibited until the lock release key 10 is restored to the retaining position in the key retaining device 11.
  • the operation mode is forcibly switched to the maintenance mode, and the automatic operation is prohibited until the lock release key 10 is restored to the retaining position in the key retaining device 11.
  • the predetermined operation for removing the lock release key 10 is not limited to the rotating operation as described above. For example, it may also be a simple inserting operation, or a complicated operation having a combination of a plurality of rotating operations and drawing operations.
  • the predetermined operation for removing the lock release key 10 may, for example, be a sliding operation in a direction perpendicular to the longitudinal direction of the lock release key 10.
  • the lock release key 10 may be one lacking compatibility between different hoistways, whereby, when the lock release key 10 is in the retaining position, it is possible to prevent a landing door from being opened by a lock release key corresponding to another hoistway.
  • the lock release key 10 may be of a collapsible type or a telescopic type, which enables the lock release key to be easily accommodated in the small space within the landing operation panel.
  • Fig. 8 is a front view of a keyhole portion of a lock device of an elevator apparatus according to Embodiment 2 of this invention
  • Fig. 9 is a front view of the keyhole portion in Fig. 8 when lock releasing operation is being performed
  • Fig. 10 is a front view of the keyhole portion in Fig. 9 with the lock release key removed therefrom.
  • the general construction of the lock device is substantially the same as that of Embodiment 1.
  • a keyhole portion 21 is provided in the landing door. Further, the keyhole portion 21 includes an inner cylinder 22, and an outer cylinder 23, which is a movable member surrounding the inner cylinder 22. The inner cylinder 22 is provided with a keyhole 22a through which the lock release key 10 is inserted.
  • the outer cylinder 23 can be rotationally displaced between a first position (normal position) illustrated in Fig. 8 and a second position (maintenance position) illustrated in Figs. 9 and 10 .
  • the outer cylinder 23 is displaced from the first position to the second position as the inner cylinder 22 is rotated through lock releasing operation by the lock release key. Further, when the outer cylinder 23 has been displaced to the second position, the outer cylinder 23 is kept (latched) in the second position until it is restored to the first position by manual operation from the landing or from within the hoistway.
  • the outer cylinder 23 is provided with a mark 23a for indicating the rotating position of the outer cylinder 23.
  • the control panel 14 sets the operation mode to the normal mode, and when the outer cylinder 23 is in the second position, it sets the operation mode to the maintenance mode. More specifically, when the outer cylinder 23 is in the first position, the control panel 14 sets the operation mode to the normal mode, and when the outer cylinder 23 is in a position other than the first position, it sets the operation mode to the maintenance mode.
  • Fig. 11 is a flowchart illustrating a car starting operation at the control panel 14 according to Embodiment 2.
  • the operation mode is set to the normal mode, and automatic operation is allowed (Step S6).
  • the operation mode is set to the maintenance mode, and automatic operation becomes impossible, with solely manual operation being allowed.
  • the outer cylinder 23 when lock releasing operation is performed on the lock device by the lock release key, the outer cylinder 23 is displaced from the first position to the secondposition, and the outer cylinder 23 displaced to the second position remains in the second position until it is restored to the first position by manual operation. Further, when the outer cylinder 23 is in the first position, the control panel 14 sets the operation mode to the normal mode, and when the outer cylinder 23 is in the second position, it sets the operation mode to the maintenance mode. Thus, it is possible to more reliably prevent the car from being automatically operated while the maintenance worker is in the hoistway.
  • each floor an indication means for indicating that the outer cylinder 23 is not in the first position, and that the elevator apparatus is operating under the maintenance mode. This helps to prevent an elevator user from trying to operate the landing operation panel or from waiting for the car despite the fact that the elevator apparatus is operating under the maintenance mode.
  • the lock device is released by rotating the inner cylinder 22, it is also possible, for example, to release the lock device through the operation of raising the forward end of the lock release key as in the case of Embodiment 1.
  • the movable member may be moved up, for example, to the second position through the lock releasing operation by the lock release key, and may be latched in the first position until it is moved downwards by manual operation. In this way, there are no particular limitations regarding the lock releasing method, and the direction in which the movable member is displaced is changed according to the lock releasing method.
  • Embodiment 2 there is described a type in which the keyhole portion 21 is exposed at the landing, this invention is also applicable to a type (hidden type) in which the keyhole portion is not exposed.
  • a type in which lock releasing operation is performed by inserting a lock release key into a gap between the landing door and the landing jamb, it is possible to obtain the same effect as that of Embodiment 2 by using a movable member displaced from the first position to the second position through the lock releasing operation thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Elevator Door Apparatuses (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
EP06822242.1A 2006-10-25 2006-10-25 Dispositif d'ascenseur Withdrawn EP2444351A4 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2006/321265 WO2008050415A1 (fr) 2006-10-25 2006-10-25 Dispositif d'ascenseur

Publications (2)

Publication Number Publication Date
EP2444351A1 true EP2444351A1 (fr) 2012-04-25
EP2444351A4 EP2444351A4 (fr) 2013-05-01

Family

ID=39324229

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06822242.1A Withdrawn EP2444351A4 (fr) 2006-10-25 2006-10-25 Dispositif d'ascenseur

Country Status (5)

Country Link
EP (1) EP2444351A4 (fr)
JP (1) JP4849487B2 (fr)
KR (1) KR101023358B1 (fr)
CN (1) CN101506079B (fr)
WO (1) WO2008050415A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10676321B2 (en) 2016-06-08 2020-06-09 Otis Elevator Company Maintenance safety device for elevator and a operation method thereof
DE112011105918B4 (de) * 2011-12-05 2021-05-27 Mitsubishi Electric Corporation Aufzugsicherheitssteuervorrichtung

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103068710B (zh) * 2010-10-01 2015-07-22 三菱电机株式会社 电梯的运转模式切换系统
JP5784049B2 (ja) * 2011-02-02 2015-09-24 三菱電機株式会社 エレベータの安全制御装置
ES2843651T3 (es) 2013-10-23 2021-07-20 Inventio Ag Sistema de seguridad para un ascensor, instalación de ascensor y procedimiento para hacer funcionar un sistema de seguridad de este tipo
CA2969376C (fr) * 2014-12-18 2023-05-16 Inventio Ag Procede pour faire fonctionner un systeme de securite electronique comprenant des abonnes temporaires
US10662027B2 (en) * 2014-12-18 2020-05-26 Inventio Ag Method for operating an electronic safety system with temporary participants
WO2018050253A1 (fr) * 2016-09-19 2018-03-22 Kone Corporation Procédé de réglage d'un ascenseur destiné à mettre celui-ci en mode entretien
EP3483110A1 (fr) * 2017-11-08 2019-05-15 Otis Elevator Company Systèmes d'accès pour ascenseurs
JP7571856B1 (ja) 2023-12-26 2024-10-23 フジテック株式会社 エレベータ

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH304482A (de) * 1952-07-15 1955-01-15 Schweiz Wagons Aufzuegefab Sicherheitsvorrichtung an einer mit Sicherheitsschloss versehenen Schachttüre eines elektrisch gesteuerten Aufzuges.
JPH0710439A (ja) * 1993-06-28 1995-01-13 Hitachi Building Syst Eng & Service Co Ltd エレベータのかご戸ロツク機構用点検装置
JP2001240350A (ja) * 2000-03-03 2001-09-04 Toshiba Corp エレベータの籠戸ロック装置
JP2004099299A (ja) * 2002-09-12 2004-04-02 Toshiba Elevator Co Ltd エレベータドアのアンロック装置
JP2006264841A (ja) * 2005-03-23 2006-10-05 Toshiba Elevator Co Ltd エレベータ

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02233493A (ja) 1989-03-07 1990-09-17 Mitsubishi Electric Corp エレベータドアの解錠装置
JPH0891730A (ja) * 1994-09-22 1996-04-09 Toshiba Elevator Technos Kk エレベータの安全装置
CA2166841C (fr) * 1995-01-31 2006-08-22 Heinrich Foelix Materiel servant a proteger temporairement un espace de travail
JPH1087206A (ja) 1996-09-18 1998-04-07 Hitachi Ltd エレベータの保守運転装置
JP4351004B2 (ja) 2003-08-26 2009-10-28 東芝エレベータ株式会社 エレベータの点検作業表示システム

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH304482A (de) * 1952-07-15 1955-01-15 Schweiz Wagons Aufzuegefab Sicherheitsvorrichtung an einer mit Sicherheitsschloss versehenen Schachttüre eines elektrisch gesteuerten Aufzuges.
JPH0710439A (ja) * 1993-06-28 1995-01-13 Hitachi Building Syst Eng & Service Co Ltd エレベータのかご戸ロツク機構用点検装置
JP2001240350A (ja) * 2000-03-03 2001-09-04 Toshiba Corp エレベータの籠戸ロック装置
JP2004099299A (ja) * 2002-09-12 2004-04-02 Toshiba Elevator Co Ltd エレベータドアのアンロック装置
JP2006264841A (ja) * 2005-03-23 2006-10-05 Toshiba Elevator Co Ltd エレベータ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2008050415A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112011105918B4 (de) * 2011-12-05 2021-05-27 Mitsubishi Electric Corporation Aufzugsicherheitssteuervorrichtung
US10676321B2 (en) 2016-06-08 2020-06-09 Otis Elevator Company Maintenance safety device for elevator and a operation method thereof

Also Published As

Publication number Publication date
WO2008050415A1 (fr) 2008-05-02
EP2444351A4 (fr) 2013-05-01
KR101023358B1 (ko) 2011-03-18
CN101506079A (zh) 2009-08-12
JP4849487B2 (ja) 2012-01-11
JPWO2008050415A1 (ja) 2010-02-25
KR20090047469A (ko) 2009-05-12
CN101506079B (zh) 2011-01-26

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