EP0630847A2 - Emergency apparatus to move an elevator cabin to the nearest floor in case of power failure - Google Patents

Emergency apparatus to move an elevator cabin to the nearest floor in case of power failure Download PDF

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Publication number
EP0630847A2
EP0630847A2 EP94830273A EP94830273A EP0630847A2 EP 0630847 A2 EP0630847 A2 EP 0630847A2 EP 94830273 A EP94830273 A EP 94830273A EP 94830273 A EP94830273 A EP 94830273A EP 0630847 A2 EP0630847 A2 EP 0630847A2
Authority
EP
European Patent Office
Prior art keywords
emergency
control board
case
cage
emergency apparatus
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Withdrawn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
EP94830273A
Other languages
German (de)
French (fr)
Other versions
EP0630847A3 (en
Inventor
Giovanni Santoro
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0630847A2 publication Critical patent/EP0630847A2/en
Publication of EP0630847A3 publication Critical patent/EP0630847A3/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/027—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door

Definitions

  • the object of the present invention is an emergency apparatus intended to move the cage of the lift to one of the two nearest landings in case of a failure of the electric power supply.
  • the object of this invention is to use the system of The control board and relative sensors previously installed and utilised in conditions of normal electric power supply to allow to perform all the operations required for the emergency in case of blackout.
  • the installation of the apparatus can be accomplished by means of simple connections between the apparatus itself, the control board of the existing system and the electrical network. Its capacity of making use both of the existing control board and sensor system, makes it possible to avoid complicated and costly installations along the lift shaft, also permitting a remarkable saving in costs and materials.
  • the apparatus comes into operation, supplies the electric control board and the relative sensors thereof, and, making use of the data concerning the functioning of the cage previously stored therein, sends the necessary drive to the control board, for properly controlling the emergency manoeuvre.
  • the apparatus stops working, leaving the lift in the "out of order" condition until the electric power supply is back.
  • figure 1 shows the block diagram of the parts comprised in the emergency apparatus
  • figure 2 shows the flow diagram of the functions, referred to the various situations wherein the blackout can occur.
  • the emergency apparatus for lifts of the invention comprises three principal units:
  • the power module includes a switch/inverter composed of a remote control switch, with the relative control circuits usually on "network” position, which switches the system to the "inverter” position when the emergency manoeuvre starts.
  • a network sensor that transmits the condition of blackout to the interface module in case one or more of the three phases of input line voltage should fail.
  • a battery charger to recharge the battery unit and supply all the circuits inside the apparatus.
  • a section comprising two three-phase inverters, one of which is preferably a 50V/5Hz inverter intended for supplying the motor of the lift, while the other one is a 380V/50Hz inverter intended for feeding the control board and the door opening controls.
  • the interface module by means of input sensors, continuously stores data from the control board, such as the position of the cage and the relative functions thereof.
  • the interface module employs such data to start the emergency manoeuvre, if needed, utilising the control outputs to transmit all the necessary operations to the control board for the "rescue" to be regularly carried out.
  • the battery unit is composed preferably of six sealed lead-acid batteries, preferably of 12V/6.5Ah, necessary to feed the apparatus in case of blackout.
  • the apparatus When the system is working by input power supply, the apparatus is on bypass position, the battery charger is working, and the conditions transmitted to the different sensors are stored moment by moment. In case the blackout occurs when the lift cage is on a floor and the doors are open, no emergency manoeuvre is needed, the apparatus stays on bypass position and the lift goes "out of order" until the power supply is back.

Landscapes

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

Abstract

This invention consists of an emergency apparatus intended for moving the cage of a lift to one of the two nearest landings. This apparatus is easy to be installed and can be put into operation by means of the control board and sensors of the already existing system.

Description

  • The object of the present invention is an emergency apparatus intended to move the cage of the lift to one of the two nearest landings in case of a failure of the electric power supply.
  • At present, systems which can carry out the emergency manoeuvre are already available. Such systems, in case of blackout, come into operation switching the control of the motors to a board and simplified and essential sensor systems added to the existing system, which are necessary to the execution of the manoeuvre. The labour and materials needed for the transformation of the system are very costly, and such as to limit the diffusion of the system.
  • The object of this invention is to use the system of The control board and relative sensors previously installed and utilised in conditions of normal electric power supply to allow to perform all the operations required for the emergency in case of blackout. The installation of the apparatus can be accomplished by means of simple connections between the apparatus itself, the control board of the existing system and the electrical network. Its capacity of making use both of the existing control board and sensor system, makes it possible to avoid complicated and costly installations along the lift shaft, also permitting a remarkable saving in costs and materials.
  • Should the electricity supply fail while the cage is moving, the apparatus comes into operation, supplies the electric control board and the relative sensors thereof, and, making use of the data concerning the functioning of the cage previously stored therein, sends the necessary drive to the control board, for properly controlling the emergency manoeuvre.
  • Once all the stage of the emergency manoeuvre have been accomplished, the apparatus stops working, leaving the lift in the "out of order" condition until the electric power supply is back.
  • The invention will be now described in detail with reference to the annexed drawings, wherein figure 1 shows the block diagram of the parts comprised in the emergency apparatus, and figure 2 shows the flow diagram of the functions, referred to the various situations wherein the blackout can occur.
    • DESCRIPTION OF THE BLOCK DIAGRAM
  • The emergency apparatus for lifts of the invention, comprises three principal units:
    • 1) Power module
    • 2) Interface module
    • 3) Battery unit (which, for better convenience, has been drawn inside the power module.)
  • The power module includes a switch/inverter composed of a remote control switch, with the relative control circuits usually on "network" position, which switches the system to the "inverter" position when the emergency manoeuvre starts.
  • A network sensor that transmits the condition of blackout to the interface module in case one or more of the three phases of input line voltage should fail.
  • A battery charger to recharge the battery unit and supply all the circuits inside the apparatus.
  • A section comprising two three-phase inverters, one of which is preferably a 50V/5Hz inverter intended for supplying the motor of the lift, while the other one is a 380V/50Hz inverter intended for feeding the control board and the door opening controls.
  • The interface module, by means of input sensors, continuously stores data from the control board, such as the position of the cage and the relative functions thereof.
  • In case of blackout the interface module employs such data to start the emergency manoeuvre, if needed, utilising the control outputs to transmit all the necessary operations to the control board for the "rescue" to be regularly carried out.
  • All along the operation, it is available a 24V/0.2A output for any "emergency manoeuvre" signals.
  • The battery unit is composed preferably of six sealed lead-acid batteries, preferably of 12V/6.5Ah, necessary to feed the apparatus in case of blackout.
  • When the system is working by input power supply, the apparatus is on bypass position, the battery charger is working, and the conditions transmitted to the different sensors are stored moment by moment. In case the blackout occurs when the lift cage is on a floor and the doors are open, no emergency manoeuvre is needed, the apparatus stays on bypass position and the lift goes "out of order" until the power supply is back.
  • In case of blackout with the cage on a floor and the doors closed, the emergency manoeuvre carried out by the apparatus is limited to the necessary opening of the doors. In case of blackout with the cage out of floor, the cage stops, and at the same time the network sensor puts the emergency apparatus into operation.
  • The references shown on the block diagram and on the logical flow diagram indicate:
    • 10
    POWER MODULE
    11
    NETWORK SWITCH/INVERTER
    12
    NETWORK SENSOR
    13
    BATTERY CHARGER SYSTEM
    14
    INVERTER SYSTEM
    15
    ACCUMULATOR BATTERY
    20
    INTERFACE MODULE
    21
    INPUT OF THE SENSOR FOR THE DIRECTION OF MOTION OF THE MOTOR
    22
    INPUT OF THE FLOOR SENSOR
    23
    INPUT OF THE LIMIT SWITCH AND DOORS OPENING SENSOR
    24
    INPUT OF THE SENSOR FOR THE DOOR MOTOR ACTIVITY
    25
    OUTPUT OF THE EMERGENCY DIRECTION CONTROL
    26
    OUTPUT OF THE STOP AND DOOR OPENING CONTROL
    27
    OUTPUT OF THE LOW SPEED INHIBITION CONTROL
    28
    OUTPUT OF THE EMERGENCY MANOEUVRE SIGNAL
    51
    BLACKOUT
    52
    CAGE AT FLOOR
    53
    START OF THE EMERGENCY MANOEUVRE
    54
    MOTION OF THE CAGE TO ONE OF THE TWO NEAREST FLOORS
    55
    OPEN DOORS
    56
    START OF THE EMERGENCY MANOEUVRE
    57
    OPENING OF THE CAGE AND FLOOR DOORS
    58
    END OF THE EMERGENCY MANOEUVRE
    59
    OUT OF ORDER TILL THE POWER SUPPLY IS BACK
    60
    LIGHTING OF THE "EMERGENCY" SIGNAL
    29
    CONTROL LOGIC
    61
    SWITCHING OFF OF THE "EMERGENCY" SIGNAL

       The various apparatus and logical operations accomplished are connected and arranged as shown on the block diagram (figure 1) and flow diagram (figure 2) enclosed to the present description.

Claims (4)

  1. An emergency apparatus to move the cage of a lift to one of the two nearest floors in case of electric power blackout, easy to be installed and working preferably employing the control board and sensors of the existing system by means of simple connections between the apparatus itself, the control board of the existing system and the electrical network.
  2. The emergency apparatus for lifts of claim 1, comprising: a power module, an interface module and a battery unit, the power module comprising a switch/inverter composed of a remote control switch and relative control circuits usually in the "network" position, which switches the apparatus to the "inverter" position when the emergency manoeuvre starts.
  3. The emergency apparatus for lifts of claim 1, wherein said interface module, by means of input sensors, continuously stores the data existing on the control board, such as the position of the cage and the relative functions.
  4. The emergency apparatus for lifts of claim 1 wherein the battery unit preferably consists of six sealed lead-acid batteries, preferably of 12V/6.5Ah, that are necessary to supply the whole apparatus.
EP94830273A 1993-05-31 1994-05-31 Emergency apparatus to move an elevator cabin to the nearest floor in case of power failure. Withdrawn EP0630847A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITRM930358 1993-05-31
ITRM930358A IT1261690B (en) 1993-05-31 1993-05-31 ELECTRIC ACCUMULATOR EMERGENCY SYSTEM, SUITABLE FOR BRINGING ONE OF THE TWO FLOORS NEAR THE CABIN OF AN ELEVATOR IN THE EVENT OF A BLACKOUT.

Publications (2)

Publication Number Publication Date
EP0630847A2 true EP0630847A2 (en) 1994-12-28
EP0630847A3 EP0630847A3 (en) 1995-02-15

Family

ID=11401787

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94830273A Withdrawn EP0630847A3 (en) 1993-05-31 1994-05-31 Emergency apparatus to move an elevator cabin to the nearest floor in case of power failure.

Country Status (2)

Country Link
EP (1) EP0630847A3 (en)
IT (1) IT1261690B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997009264A1 (en) * 1995-09-05 1997-03-13 Rolf Vilhelm Svedman Catching and braking device for lifts
EP0850868A1 (en) * 1996-12-31 1998-07-01 Inventio Ag Controlled emergency stop apparatus for elevator
WO2020257893A1 (en) * 2019-06-28 2020-12-30 Miranda Sergio Henrique Correia Lima Automatic elevator rescue equipment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110255319A (en) * 2019-06-05 2019-09-20 快意电梯股份有限公司 Elevator position identifying system, method and lift facility

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902573A (en) * 1974-01-23 1975-09-02 Donald E Grove Elevator control system
US4128143A (en) * 1977-06-27 1978-12-05 Petterson Leif J Supervisory control means for automatic elevator systems
GB2034928A (en) * 1978-10-19 1980-06-11 Hitachi Ltd Apparatus for controlling rescue operation of elevator
US5085294A (en) * 1989-05-29 1992-02-04 Mitsubishi Denki Kabushiki Kaisha Elevator control apparatus
JPH05132258A (en) * 1991-11-08 1993-05-28 Toshiba Corp Elevator control unit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902573A (en) * 1974-01-23 1975-09-02 Donald E Grove Elevator control system
US4128143A (en) * 1977-06-27 1978-12-05 Petterson Leif J Supervisory control means for automatic elevator systems
GB2034928A (en) * 1978-10-19 1980-06-11 Hitachi Ltd Apparatus for controlling rescue operation of elevator
US5085294A (en) * 1989-05-29 1992-02-04 Mitsubishi Denki Kabushiki Kaisha Elevator control apparatus
JPH05132258A (en) * 1991-11-08 1993-05-28 Toshiba Corp Elevator control unit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 17, no. 510 (M-1480) 14 September 1993 & JP-A-05 132 258 (TOSHIBA CORP) 28 May 1993 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997009264A1 (en) * 1995-09-05 1997-03-13 Rolf Vilhelm Svedman Catching and braking device for lifts
EP0850868A1 (en) * 1996-12-31 1998-07-01 Inventio Ag Controlled emergency stop apparatus for elevator
US5893432A (en) * 1996-12-31 1999-04-13 Inventio Ag Controlled emergency stop apparatus for elevators
WO2020257893A1 (en) * 2019-06-28 2020-12-30 Miranda Sergio Henrique Correia Lima Automatic elevator rescue equipment

Also Published As

Publication number Publication date
ITRM930358A0 (en) 1993-05-31
EP0630847A3 (en) 1995-02-15
IT1261690B (en) 1996-05-29
ITRM930358A1 (en) 1994-12-01

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