EP1845053B1 - Landing door device of elevator - Google Patents

Landing door device of elevator Download PDF

Info

Publication number
EP1845053B1
EP1845053B1 EP20050703281 EP05703281A EP1845053B1 EP 1845053 B1 EP1845053 B1 EP 1845053B1 EP 20050703281 EP20050703281 EP 20050703281 EP 05703281 A EP05703281 A EP 05703281A EP 1845053 B1 EP1845053 B1 EP 1845053B1
Authority
EP
European Patent Office
Prior art keywords
unlocking
authentication
hatch door
elevator
locking
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
EP20050703281
Other languages
German (de)
French (fr)
Other versions
EP1845053A4 (en
EP1845053A1 (en
Inventor
Takeshi Fujiki
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
Priority to PCT/JP2005/000003 priority Critical patent/WO2006072974A1/en
Publication of EP1845053A1 publication Critical patent/EP1845053A1/en
Publication of EP1845053A4 publication Critical patent/EP1845053A4/en
Application granted granted Critical
Publication of EP1845053B1 publication Critical patent/EP1845053B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02Door or gate operation
    • B66B13/14Control systems or devices
    • B66B13/16Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
    • B66B13/165Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position electrical

Description

    Technical Field
  • The present invention relates to a hatch door apparatus provided on an elevator hall.
  • Background Art
  • An elevator door is made up of a hatch door for closing a hall entrance on an elevator hall of a building and a car door for closing a car entrance moving up and down in an elevator shaft. The opening/closing operation for both of these doors is generally performed by a door operator provided on the car. Specifically, when the elevator car stops at an elevator hall on a predetermined floor, a door clutch provided on the car door and the hatch door engage each other, and thus the driving force of the door operator is transmitted to the hatch door via the car door. That is to say, the hatch door is opened and closed in association with the car door. The hatch door on an elevator hall at which the car is not stopping is always closed, and is further locked by a locking device from the elevator shaft side to prevent the hatch door from being opened inadvertently at the time of being closed.
  • The hatch door is provided with an unlocking device for unlocking the locking device from the hall side to make provision for the periodical maintenance and inspection of elevator or the rescue operation in emergency. Figure 6 is a sectional view showing an essential portion of a conventional elevator hatch door apparatus. In Figure 6, on the side surface on the shaft side of a hatch door 1, an unlocking device 5 for unlocking a locking device 4 for the hatch door 1 is provided. This unlocking device 5 is provided with an operating portion 5a so that the locking device 4 is unlocked, for example, by moving this operating portion 5a to one side. Also, at an upper part of the hatch door 1, an unlocking hole 1a penetrating from the elevator hall side to the shaft side is formed. This unlocking hole 1a is arranged so as to be located at almost the same position as the lower end portion of the operating portion 5a of the unlocking device 5 at the opening of the hall side. Therefore, when the hatch door 1 must be opened, for example, at the time of maintenance, a maintenance worker dispatched from an elevator maintenance company inserts a special-purpose key 7 in the unlocking hole 1a from the elevator hall side to move the operating portion 5a of the unlocking device 5 to one side by using this special-purpose key 7, thereby unlocking the locking device 4 for the hatch door 1. Conventionally, by forming the unlocking hole 1a in the hatch door 1 and the special-purpose key 7 into a special shape such that the unlocking hole 1a and the special-purpose key 7 engage each other, or by arranging the unlocking hole 1a at a place invisible from the ordinary users, efforts have been made to prevent the locking device 4 from being unlocked mischievously.
  • Also, as a conventional art for the hatch door apparatus, a technique has been proposed in which after a closing plate has been turned by using a special-purpose key inserted in a second keyhole, an unlocking operation is performed by using a special-purpose key inserted in a first keyhole, by which the hatch door can be unlocked (for example, refer to Patent Document 1).
  • Also, as another conventional art, a technique has been proposed in which an unlocking device for unlocking a locking device for a hatch door is provided, and when predetermined conditions are met, an unlocking signal is sent to the unlocking device, by which the locking device is unlocked electrically (for example, refer to Patent Document 2).
  • Patent Document 3 is related to an arrangement for preventing unauthorized access into the hoistway of an elevator system, in which a landing door can be locked by means of an appropriate key.
  • Finally Patent document 4 describes a cylinder key having a sensor which provides authorization data which can be used to block the lock cylinder.
    • Patent Document 1: Japanese Patent Laid-Open No. 11-222373
    • Patent Document 2: Japanese Patent Laid-Open No. 8-59151
    • Patent Document 3: US 2004-0173415 A1
    • Patent Document 4: EP 0 942 130 A2
    Disclosure of the Invention Problems to be Solved by the Invention
  • In the conventional hatch door apparatus shown in Figure 6, it is difficult to completely prevent the operation of the unlocking device 5 from being performed by a person other than a person permitted to unlock the locking device 4 (a third person). Specifically, there has been a fear that the locking device 4 is unlocked mischievously by the third person by inserting a member having a shape similar to that of the special-purpose key 7 in the unlocking hole 1a or by knowing the unlocking method by looking at the unlocking operation performed by the maintenance worker.
  • Also, in the technique described in Patent Document 1, by complicating the procedure for unlocking operation, it is intended to make the third person recognize the danger of opening the hatch door. However, in the case where the procedure for unlocking operation is found by the third person, the locking device cannot be prevented from being unlocked mischievously.
  • Also, in the technique described in Patent Document 2, no special-purpose key is needed because the locking device is unlocked electrically. However, it is difficult to quickly open the hatch door on an arbitrary floor because the locking device can be unlocked only when the conditions such as the ON/OFF state of a manual switch provided in the car or a machine room, the position of the car and the ON/OFF state of a hall button on a predetermined floor are met.
  • The present invention has been made to solve the above problems, and accordingly an object thereof is to provide an elevator hatch door apparatus capable of preventing a locking device for a hatch door surely and easily from being unlocked by a person other than an authorized person.
  • Means for Solving the Problems
  • An elevator hatch door apparatus related to the present invention comprises a hatch door provided on an elevator hall; a locking device for locking the hatch door; an unlocking device for unlocking the locking device; an authentication device for authenticating an authorized person who is authorized to unlock the locking device; and an unlocking limiter for enabling an unlocking operation of the unlocking device based on an authentication result of the authentication device.
  • Effect of the Invention
  • The present invention is configured by comprising a hatch door provided on an elevator hall; a locking device for locking the hatch door; an unlocking device for unlocking the locking device; an authentication device for authenticating an authorized person who is authorized to unlock the locking device; and an unlocking limiter for enabling an unlocking operation of the unlocking device based on an authentication result of the authentication device. Therefore, the locking device for the hatch door can be prevented surely and easily from being unlocked by a person other than the authorized person.
  • Brief Description of the Drawings
    • Figure 1 is a front view of an elevator hatch door apparatus in embodiment 1 of the present invention.
    • Figure 2 is a sectional view of an essential portion of the elevator hatch door apparatus in embodiment 1 of the present invention.
    • Figure 3 is a flowchart showing the operation of the unlocking limiter in embodiment 1 of the present invention.
    • Figure 4 is a diagram to explain the operation of the unlocking limiter in embodiment 1 of the present invention.
    • Figure 5 is a flowchart showing the operation of the unlocking device in embodiment 1 of the present invention.
    • Figure 6 is a sectional view showing an essential portion of a conventional elevator hatch door apparatus.
    Description of Symbols
    • 1 hatch door, 1a unlocking hole, 2 hanger roller, 3 hanger rail, 4 locking device, 4a first hook portion, 4b second hook portion, 5 unlocking device, 5a operating portion, 6 unlocking limiter, 6a shield plate, 6b solenoid, 7 special-purpose key
    Best Mode for Carrying Out the Invention
  • To describe the present invention in more detail, the present invention will be explained with reference to the accompanying drawings. In each drawing, the same symbols are applied to the same or corresponding elements, and the duplicated explanation thereof is simplified or omitted appropriately.
  • Embodiment 1
  • Figure 1 is a front view of an elevator hatch door apparatus in embodiment 1 of the present invention, showing a state in which the hatch door apparatus is viewed from the elevator shaft side. In Figure 1, on an elevator hall provided on each floor of a building, a hatch door 1 for closing a hall entrance is provided. As described before, the opening/closing operation of the hatch door 1 is generally performed by a door operator (not shown) provided on an elevator car (not shown). The hatch door 1 is configured so that the opening/closing direction thereof is guided by rolling of hanger rollers 2 provided rotatably above the hatch door 1 on a hanger rail 3 provided on a shaft wall above the hall entrance.
  • Also, the hatch door 1 on the elevator hall at which the car is not stopping is always closed, and is further locked by a locking device 4 provided on the shaft side to prevent the hatch door 1 from being opened inadvertently when the hatch door 1 is being closed. The locking device 4 includes a first hook portion 4a fixed on the shaft wall above the hall entrance and a second hook portion 4b engaging with the first hook portion 4a when the hatch door 1 is being closed.
  • On the side surface on the shaft side of the hatch door 1 on a predetermined floor, an unlocking device 5 is provided to unlock the locking device 4 by a predetermined operation or input from the elevator hall side when the hatch door 1 must be opened, for example, at the time of elevator maintenance. The unlocking device 5 shown in Figure 1 is provided with an operating portion 5a below the second hook portion 4b of the locking device 4, and is configured so that the locking device 4 is unlocked by performing a predetermined operation of the operating portion 5a. Therefore, in the case where the hatch door 1 must be opened, a person authorized to unlock the locking device 4 (an authorized person) inserts a special-purpose key into an unlocking hole 1a formed in the hatch door 1 from the elevator hall side, and operates the operating portion 5a of the unlocking device 5 by using the special-purpose key to unlock the locking device 4.
  • Figure 2 is a sectional view of an essential portion of the elevator hatch door apparatus in embodiment 1 of the present invention. The personal information of the authorized persons such as maintenance workers at the elevator maintenance company or caretakers for the building in which the elevator is provided is registered in an authentication device (not shown) in advance. Reference numeral 6 denotes an unlocking limiter that enables the unlocking operation of the unlocking device 5 only when it is confirmed, based on the authentication result of the authentication device, that the authenticated person is the authorized person. This unlocking limiter 6 is made up of a shield plate 6a for closing the unlocking hole 1a formed in the hatch door 1 and a solenoid 6b for opening and closing the unlocking hole 1a by moving the shield plate 6a vertically based on the authentication result of the authentication device. The authentication device consists of a fingerprint identification system or an ID card reader provided additionally on the elevator apparatus, an authentication system for a password transmitted from a personal terminal such as a cellular phone, or the like. Also, in the case where the elevator is provided in an apartment house etc., the function of authentication device may be provided additionally in the building maintenance system of the apartment house etc. For example, as the authentication device, an authentication system for unlocking an automatic security lock system for a common entrance door can also be used.
  • In embodiment 1, the unlocking limiter 6 made up of the shield plate 6a and the solenoid 6b is shown. However, the unlocking limiter 6 is not limited to this configuration if it has a function of enabling and disabling the unlocking operation of the unlocking device 5 based on the authentication result of the authentication device, namely, a function of removing or maintaining the unlocking operation limitation of the unlocking device 5 based on the authentication result of the authentication device. That is to say, the unlocking limiter 6 has only to have the configurations of the locking device 4 and the unlocking device 5 of the hatch door apparatus and have the configuration and operation matching the unlocking method of the unlocking device 5. For example, in the case where the unlocking device 5 has the above-described configuration, the configuration may be such that a braking device for braking the operating portion 5a of the unlocking device 5 is provided as the unlocking limiter 6, and only when it is confirmed by the authentication device that the authenticated person is the authorized person, the braking device is released, by which the unlocking operation of the unlocking device 5 is enabled, namely, the unlocking operation limitation of the unlocking device 5 is removed. The locking device 4 and the unlocking device 5 are also not limited to the above-described configurations, and the unlocking hole 1a need not necessarily be formed in the hatch door 1.
  • Next, the operation of the unlocking limiter 6 is explained.
  • Figure 3 is a flowchart showing the operation of the unlocking limiter 6 in embodiment 1 of the present invention. When the maintenance worker at the elevator maintenance company opens the hatch door 1, for example, at the time of periodic maintenance, this maintenance worker is first authenticated to confirm that the maintenance worker is the authorized person by using the authentication device provided additionally on the elevator apparatus (Step S301). In the case where it is not confirmed by the authentication device that the authenticated person (herein, the maintenance worker) is the authorized person (Step S302), the unlocking operation of the unlocking device 5 is not permitted (Step S303), and the unlocking operation limitation of the unlocking device 5 imposed by the unlocking limiter 6 is maintained. Therefore, the locking device 4 cannot be unlocked by the unlocking device 5 (Step S304). Concretely, as shown in Figure 2, the state in which the unlocking hole 1a in the hatch door 1 is closed by the shield plate 6a is maintained, so that even if a special-purpose key 7 is inserted into the unlocking hole 1a from the elevator hall side, the unlocking operation of the unlocking device 5 cannot be performed. On the other hand, in the case where it is confirmed by the authentication device that the authenticated person is the authorized person (Step S305), the unlocking operation of the unlocking device 5 is permitted (Step S306), and the unlocking operation limitation of the unlocking device 5 imposed by the unlocking limiter 6 is removed. Therefore, by performing a predetermined operation or input on the unlocking device 5, the locking device 4 can be unlocked (Step S307). Concretely, as shown in Figure 4, the shield plate 6a is moved upward by the solenoid 6b, so that the unlocking operation of the unlocking device 5 can be performed by inserting the special-purpose key 7 into the unlocking hole 1a from the elevator hall side.
  • Herein, in the case where it is confirmed by the authentication device that the authenticated person is the authorized person, it is possible to enable the unlocking operation of the unlocking device 5 by imposing time limitation, and to disable the unlocking operation after predetermined time has elapsed after the authentication using the authentication device. That is to say, after the predetermined time has elapsed, the unlocking operation of the unlocking device 5 is limited by the unlocking limiter 6, by which the subsequent unlocking operation is prevented from being performed by the third person. Concretely, the shield plate 6a having been moved upward by the solenoid 6b at the time of authentication of the authorized person is moved downward to close the unlocking hole 1a after the predetermined time has elapsed.
  • Even if the configuration is made such that a means for detecting the completion of the unlocking operation of the unlocking device 5 is provided, and in the case where the completion of the unlocking operation of the unlocking device 5 is detected after the authentication of the authorized person, the unlocking operation of the unlocking device 5 is limited by the unlocking limiter 6, the same effect as that in the case where the time limitation is imposed can be achieved.
  • Also, in the case where the authentication device and the unlocking device 5 are provided at places distant from each other, for example, in the case where the function of the authentication device is provided additionally in the building maintenance system, predetermined time is required from when the authenticated person receives authentication of the authorized person to when the authenticated person performs the unlocking operation of the unlocking device 5. In such a case, to prevent the unlocking operation of the unlocking device 5 from being performed by the third person within the predetermined time, time limitation may be imposed such that the unlocking operation of the unlocking device 5 is first enabled after predetermined time based on the distance between the installation position of the authentication device and the installation position of the unlocking device 5 or the movement from the installation position of the authentication device to the installation position of the unlocking device 5 has elapsed after the authentication using the authentication device. At this time, the state in which the unlocking operation of the unlocking device 5 is limited by the unlocking limiter 6 after the authentication using the authentication device is set so as to be slightly longer than the time necessary for the movement from the authentication device to the unlocking device 5, by which the unlocking operation of the unlocking device 5 can surely prevented from being performed by the third person during the time when the authorized person arrives at the installation place of the unlocking device 5.
  • To surely prevent a mischievous unlocking operation from being performed by the third person, a sensor may be provided to detect an unlocking operation intended to unlock the locking device 4 performed when authentication is not given by the authentication device, namely, when the unlocking operation of the unlocking device 5 is limited by the unlocking limiter 6. This sensor is configured so as to detect not only the fact that the unlocking operation of the unlocking device 5 has been performed actually but also the operation intended to unlock the locking device 4. Concretely, a force acting on the shield plate 6a is measured by the sensor, and if a force higher than a predetermined value acts on the shield plate 6a, the force is detected as the unlocking operation intended to unlock the locking device 4.
  • In the case where the above-described sensor is provided, a reporting device is provided to report the detection result obtained by the sensor to the outside such as an elevator remote control system or the building maintenance system, by which a mischievous unlocking operation performed by the third person can be monitored at any time. Also, in the case where an unlocking operation intended to unlock the locking device 4 is detected by the sensor, an alarm may be given to that elevator hall.
  • Also, the control of authorized person can be carried out easily by providing a recorder for recording the authentication history of authorized person authenticated by the authentication device. In the case where the recorder is provided, a transmitter may be provided to transmit the authentication history recorded by the recorder to the outside such as an elevator remote monitoring system or the building maintenance system.
  • According to embodiment 1 of the present invention, only an authenticated person authenticated as the authorized person by the authentication device can perform the unlocking operation of the unlocking device 5. Therefore, the locking device 4 can be prevented surely and easily from being unlocked by the third person.
  • To make provision for the case where the authentication device for authenticating the authorized person does not operate normally, for example, as shown in Figure 5, a releasing device for removing the unlocking operation limitation of the unlocking device 5 imposed by the unlocking limiter 6 regardless of the authentication result of the authentication device may be provided in a maintenance space such as a control panel in the machine room or a control panel mounted in the car. Also, in the case where the function of authentication device is provided additionally in the building maintenance system, the function of the above-described releasing device may be provided in the building maintenance system like the authentication device.
  • Industrial Applicability
  • As described above, according to the elevator hatch door apparatus in accordance with the present invention, unless an authenticated person is confirmed as an authorized person registered in advance, the unlocking device cannot be operated. Therefore, the locking device can surely be prevented from being unlocked by the third person, so that a safer elevator hatch door apparatus can be provided.

Claims (7)

  1. An elevator hatch door apparatus, comprising:
    a hatch door (1) provided on an elevator hall;
    a locking device (4) for locking the hatch door (1); and
    an unlocking device (5) for unlocking the locking device (4); the elevator hatch door apparatus being characterized by further comprising
    an authentication device for authenticating an authorized person who is authorized to unlock the locking device (5);
    an unlocking limiter (6) for enabling an unlocking operation of the unlocking device (5) based on an authentication result of the authentication device, and
    a sensor for detecting an unlocking operation having been performed when the unlocking operation of the unlocking device (5) is limited by the unlocking limiter (6).
  2. The elevator hatch door apparatus according to claim 1, further comprising:
    a reporting device for reporting a detection result obtained by the sensor to the outside.
  3. The elevator hatch door apparatus according to any one of claims 1 to 2, characterized in that the unlocking limiter (6) enables the unlocking operation of the unlocking device (5) by imposing time limitation.
  4. The elevator hatch door apparatus according to claim 3, characterized in that the unlocking limiter (6) enables the unlocking operation of the unlocking device (5) after predetermined time based on an installation position of the authentication device and an installation position of the unlocking device (5) has elapsed after authentication of the authorized person using the authentication device.
  5. The elevator hatch door apparatus according to any one of claims 1 to 4, further comprising:
    a recorder for recording an authentication history of authorized person authenticated by the authentication device.
  6. The elevator hatch door apparatus according to claim 5, further comprising:
    a transmitter for transmitting the authentication history of authorized person recorded by the recorder to the outside.
  7. The elevator hatch door apparatus according to any one of claims 1 to 6, characterized in that the authentication device is provided additionally in a building maintenance system.
EP20050703281 2005-01-04 2005-01-04 Landing door device of elevator Expired - Fee Related EP1845053B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2005/000003 WO2006072974A1 (en) 2005-01-04 2005-01-04 Landing door device of elevator

Publications (3)

Publication Number Publication Date
EP1845053A1 EP1845053A1 (en) 2007-10-17
EP1845053A4 EP1845053A4 (en) 2012-09-05
EP1845053B1 true EP1845053B1 (en) 2015-04-15

Family

ID=36647463

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050703281 Expired - Fee Related EP1845053B1 (en) 2005-01-04 2005-01-04 Landing door device of elevator

Country Status (4)

Country Link
EP (1) EP1845053B1 (en)
JP (1) JP4858172B2 (en)
CN (1) CN100540445C (en)
WO (1) WO2006072974A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019063407A1 (en) 2017-09-27 2019-04-04 Inventio Ag Safe elevator shaft and car roof access
WO2019063406A1 (en) 2017-09-27 2019-04-04 Inventio Ag Safe access to elevator shaft
US11008196B2 (en) 2017-07-12 2021-05-18 Otis Elevator Company Blocking device

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102107812B (en) * 2009-12-24 2013-04-03 上海三菱电梯有限公司 Elevator door lock
CN102864989A (en) * 2012-09-29 2013-01-09 苏州新里程电控系统有限公司 Door sealing lock controller
WO2016092337A1 (en) * 2014-12-12 2016-06-16 Otis Elevator Company Hoistway landing door locking system and method of controlling access to an elevator shaft
US10914097B2 (en) 2015-07-10 2021-02-09 Otis Elevator Company Landing door lock failsafe protection device
JP6494579B2 (en) * 2016-09-27 2019-04-03 三菱電機ビルテクノサービス株式会社 Landing door unlocking structure
EP3336039A1 (en) * 2016-12-15 2018-06-20 Otis Elevator Company Acces prevention systems for locks of elevator systems
EP3342743A1 (en) * 2016-12-30 2018-07-04 Otis Elevator Company Elevator landing door unlocking system
EP3398900B1 (en) 2017-05-02 2019-12-18 Otis Elevator Company Elevator landing door lock safety system
JP6720412B2 (en) * 2017-06-20 2020-07-08 株式会社日立製作所 Unlocking device for hall doors and unlocking method for hall doors

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5913435B2 (en) * 1976-12-06 1984-03-29 Mitsubishi Electric Corp
JPS61238688A (en) * 1985-04-16 1986-10-23 Mitsubishi Electric Corp Release device for platform door of elevator
JPH0859151A (en) 1994-08-18 1996-03-05 Mitsubishi Denki Bill Techno Service Kk Landing unlocking device
JPH0952685A (en) * 1995-08-15 1997-02-25 Mitsubishi Denki Bill Techno Service Kk Device for releasing lock of door of landing floor
JPH10246043A (en) * 1997-03-06 1998-09-14 Unitec Kk Lock device of building
JPH11222373A (en) 1998-02-05 1999-08-17 Hitachi Building Systems Co Ltd Unlocking device of elevator landing door
DE29804066U1 (en) * 1998-03-07 1999-07-22 Bks Gmbh Cylinder key
JP2000072361A (en) * 1998-08-27 2000-03-07 Hitachi Building Systems Co Ltd Door device for elevator
FR2809441B1 (en) * 2000-05-26 2002-08-02 Devismes MANOEUVRABLE LOCK USING HANDLE OPERATOR SAID AT SQUARE OF BERNE
ZA200307740B (en) * 2002-10-29 2004-07-02 Inventio Ag Device and method for remote maintenance of a lift.
PE20040794A1 (en) * 2003-03-05 2004-12-22 Inventio Ag PREVENTION OF UNAUTHORIZED ACCESS TO LIFT BOXES

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11008196B2 (en) 2017-07-12 2021-05-18 Otis Elevator Company Blocking device
WO2019063407A1 (en) 2017-09-27 2019-04-04 Inventio Ag Safe elevator shaft and car roof access
WO2019063406A1 (en) 2017-09-27 2019-04-04 Inventio Ag Safe access to elevator shaft

Also Published As

Publication number Publication date
JP4858172B2 (en) 2012-01-18
JPWO2006072974A1 (en) 2008-06-12
EP1845053A1 (en) 2007-10-17
WO2006072974A1 (en) 2006-07-13
CN1926053A (en) 2007-03-07
CN100540445C (en) 2009-09-16
EP1845053A4 (en) 2012-09-05

Similar Documents

Publication Publication Date Title
EP1845053B1 (en) Landing door device of elevator
US8269602B2 (en) Security access control system and method for making same
US7388467B2 (en) System and method for determining a state of a door
US20180134521A1 (en) Unlocking key with authorization device
US20060059963A1 (en) Wireless access control system including wireless exit kit (''WEXK'') with panic bar
CA2459447A1 (en) Preventing unauthorized hoistway access
KR20170092021A (en) System of Semi Automatic Door having Electronic Locking Device and Holding Open Device and Method thereof
JP4962862B2 (en) Gate system and gate control method
GB2544316A (en) Turnstile allowing emergency exit
KR101745694B1 (en) Speedgate monitoring system able to remote controlling
KR100858587B1 (en) Lading door device of elevator
JP5111990B2 (en) Locking device and locking / unlocking method
JP3953260B2 (en) Building security equipment
JP6679379B2 (en) Elevator device and control method thereof
JP5384177B2 (en) Elevator-linked crime prevention system
KR101755275B1 (en) Emergency exit locking system with a status notification
JP2009263016A (en) Crime prevention device and crime prevention method for elevator
JP5138240B2 (en) Elevator equipment
JP3901384B2 (en) Monitoring system
KR101349317B1 (en) A gate apparatus
JP4929077B2 (en) Key judgment system
JP2004310188A (en) Burglar prevention apparatus
JP6654742B2 (en) ELEVATOR DEVICE AND CONTROL METHOD THEREOF
JP5781352B2 (en) Crew detection interlock control system for railway platform doors
JP4831718B2 (en) Entrance / exit management system

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20060901

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): NL

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): NL

RIC1 Information provided on ipc code assigned before grant

Ipc: B66B 13/16 20060101AFI20120801BHEP

A4 Supplementary search report drawn up and despatched

Effective date: 20120807

17Q First examination report despatched

Effective date: 20130417

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20141203

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): NL

REG Reference to a national code

Ref country code: NL

Ref legal event code: T3

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20160118

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20171129

Year of fee payment: 14

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20190201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190201