EP0795511A1 - Système de sécurité pour porte d'ascenseur - Google Patents

Système de sécurité pour porte d'ascenseur Download PDF

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Publication number
EP0795511A1
EP0795511A1 EP97600002A EP97600002A EP0795511A1 EP 0795511 A1 EP0795511 A1 EP 0795511A1 EP 97600002 A EP97600002 A EP 97600002A EP 97600002 A EP97600002 A EP 97600002A EP 0795511 A1 EP0795511 A1 EP 0795511A1
Authority
EP
European Patent Office
Prior art keywords
door
shaft
cage
lift
doors
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Withdrawn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
EP97600002A
Other languages
German (de)
English (en)
Inventor
Stylianos Argyris
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 EP0795511A1 publication Critical patent/EP0795511A1/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Withdrawn legal-status Critical Current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
    • B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
    • 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
    • B66B13/22—Operation of door or gate contacts

Definitions

  • This invention refers to a system of securing the doors of an elevator's shaft which is placed in the door-flaps of the shaft and with which we attain their absolute safety excluding the possibility of any part of the door being opened if the lift-cage is not exactly behind it, or the possibility of the lift-cage starting with open door even if there is a deliberate human intention of such kind, where, in the meantime, the user of the elevator is warned for the appropriate or not position of the lift-cage in what has to do with the shaft-door.
  • a basic requirement for the safe function of an elevator is the securing of the doors of the shaft in a way that firstly, only if the lift-cage is right behind it can the door open, and secondly, only if the shaft-door is closed can the lift-cage operate.
  • the up-to-now technical knowledge refers to systems of forelatching-latching of the shaft-doors, which are placed in the frame of every shaft-door. Only when the mechanism of latching of a certain door operates and only if the lift-cage is right behind it does this mechanism allow this particular door to open. On the other hand, the mechanisms of latching of the rest of the doors keep them closed.
  • the most usual sequence of opening one semi-automatic door is the electromagnetic, which on the lift-cage an electromagnetic mechanism is placed which secures the unlatching of the shaft-doors of the elevator.
  • the electromagnet is fed with electricity and coils a vertical foil on the left of every latching-unlatching mechanism, in a way that when the lift-cage passes through the shaft-doors of every floor, the foil does not strike to the unlatching locks and so, the doors remain safely closed.
  • the mechanism protrudes and the foil attracts the safety linch-pin of the unlatching lock so as the linch-pin stops connecting the contacts of the circuit that makes the lift-cage move, and so succeeds in making the lift-cage stop and, at the same time unlatches of the door of the selected floor.
  • the circuit of the lift-cage does not close even when the door of the floor, where the lift-cage is stopped, is open, because it includes two contacts on both-sides of the door, which are connected to the conductor existing inside the door.
  • One second drawback is that the lift-cage may operate with an open door in any floor if someone connects the two contacts of the door.
  • a third disadvantage is in case of internal malfunction of the latching mechanism; then it is possible that the linch-pin or any other metallic substance of the mechanism can create a circuit and thus operate the lift-cage of the elevator, having as a result the lift-cage move without the linch-pin having secured the door of the floor where the malfunction exists.
  • a fourth drawback is that in case of sort-circuit of the electronic parts of the installation of the elevator if the grounding relay does not operate it is possible that the elevator operates with an open door at the point of its start.
  • a fifth disadvantage is that it is possible the lift-cage operates due to either remaining magnetism or to human deliberate intervention to the converters (shuntings).
  • the new system of securing the doors of the elevator which is now presented in an improved form, consists of one metal base where the micro-switches are placed and which has a hole of 20 millimetres and is placed in every flap of the shaft door, in a way that the hole of entry of the safety linch-pin of the door's lock is identified with that of the metal base, as well as from an electronic component in a form of monitor that has two indicative lights and a beeper and which is placed in an appropriate position of the external surface of the shaft-door's flap.
  • This system does not allow the movement of the lift-cage if the shaft-door is not closed and secured, even if there is a malfunction of the latching mechanism and/or the electrical and electronic parts of the elevator or even if a deliberate by-pass of the security mechanism of the elevator is attempted, and on the other hand does not allow the opening of the shaft, if the lift-cage is not placed exactly behind it, and, last, the new system warns audiovisually for the arrival of the lift-cage, only when the lift-cage has properly arrived and has stopped behind the door.
  • Fig.1 the metallic base is shown with the micro-switches of double action, the electronic device as well as the joint among them.
  • Fig.1 the metallic base is depicted (1) which has in its centre a hole (2) of 20 millimetres of diameter and two smaller supporting holes (3) 3 millimetres of diameter each.
  • two additional metallic bases have been attached (4) and (4a) of equal distances in both sides of the hole (2), in which two simple power micro-switches are placed (5) and one double function transporter (5a).
  • One of the micro-switches (5) is connected in sequence to the electric circuit of operation of the lift-cage of the elevator, while the second (5a) feeds the electronic device (6) with power.
  • the micro-switches are in such an order that, at the point of entry of the lock's safety linch-pin from the hole (2) the terminals should come into contact.

Landscapes

  • Elevator Door Apparatuses (AREA)
EP97600002A 1996-03-07 1997-02-27 Système de sécurité pour porte d'ascenseur Withdrawn EP0795511A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GR96010076 1996-03-07
GR96100076 1996-03-07

Publications (1)

Publication Number Publication Date
EP0795511A1 true EP0795511A1 (fr) 1997-09-17

Family

ID=10942344

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97600002A Withdrawn EP0795511A1 (fr) 1996-03-07 1997-02-27 Système de sécurité pour porte d'ascenseur

Country Status (2)

Country Link
EP (1) EP0795511A1 (fr)
GR (1) GR1002473B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19963038A1 (de) * 1999-12-24 2001-07-12 Steinweg Hermann Gmbh Co Kg Bauaufzug

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1949245A (en) * 1931-10-09 1934-02-27 Robert M Sypher Signal system for dumb-waiters and the like
DE731720C (de) * 1941-03-22 1943-02-13 Stahl R Fa Schachttuerverriegelungsvorrichtung bei Aufzuegen
CH278707A (de) * 1950-01-28 1951-10-31 Inventio Ag Elektrisch gesteuerter Aufzug mit Sicherheitskontakteinrichtung an den Schachttüren.
US4094266A (en) * 1977-04-21 1978-06-13 Artt Donald P Elevator audible signaling device
US4483420A (en) * 1982-07-01 1984-11-20 Byrne Francis J Elevator door interlocking apparatus
US4491199A (en) * 1983-06-29 1985-01-01 Westinghouse Electric Corp. Elevator system
US4832157A (en) * 1988-08-09 1989-05-23 Mitsubishi Denki Kabushiki Kaisha Displaying device for elevator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1949245A (en) * 1931-10-09 1934-02-27 Robert M Sypher Signal system for dumb-waiters and the like
DE731720C (de) * 1941-03-22 1943-02-13 Stahl R Fa Schachttuerverriegelungsvorrichtung bei Aufzuegen
CH278707A (de) * 1950-01-28 1951-10-31 Inventio Ag Elektrisch gesteuerter Aufzug mit Sicherheitskontakteinrichtung an den Schachttüren.
US4094266A (en) * 1977-04-21 1978-06-13 Artt Donald P Elevator audible signaling device
US4483420A (en) * 1982-07-01 1984-11-20 Byrne Francis J Elevator door interlocking apparatus
US4491199A (en) * 1983-06-29 1985-01-01 Westinghouse Electric Corp. Elevator system
US4832157A (en) * 1988-08-09 1989-05-23 Mitsubishi Denki Kabushiki Kaisha Displaying device for elevator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19963038A1 (de) * 1999-12-24 2001-07-12 Steinweg Hermann Gmbh Co Kg Bauaufzug
DE19963038B4 (de) * 1999-12-24 2005-01-27 Hermann Steinweg Gmbh & Co Kg Baumaschinenfabrik Bauaufzug

Also Published As

Publication number Publication date
GR1002473B (el) 1996-11-21

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

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Effective date: 19990901