EP0354414A2 - Système de verrouillage pour la porte d'une cage d'ascenseur - Google Patents

Système de verrouillage pour la porte d'une cage d'ascenseur Download PDF

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Publication number
EP0354414A2
EP0354414A2 EP89113854A EP89113854A EP0354414A2 EP 0354414 A2 EP0354414 A2 EP 0354414A2 EP 89113854 A EP89113854 A EP 89113854A EP 89113854 A EP89113854 A EP 89113854A EP 0354414 A2 EP0354414 A2 EP 0354414A2
Authority
EP
European Patent Office
Prior art keywords
contacts
pivotable
contact
spring
shaft door
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.)
Granted
Application number
EP89113854A
Other languages
German (de)
English (en)
Other versions
EP0354414A3 (en
EP0354414B1 (fr
Inventor
Robert Andrew Wissell
David Bacon Pearson
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.)
Inventio AG
Original Assignee
Inventio AG
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 Inventio AG filed Critical Inventio AG
Priority to AT89113854T priority Critical patent/ATE88981T1/de
Publication of EP0354414A2 publication Critical patent/EP0354414A2/fr
Publication of EP0354414A3 publication Critical patent/EP0354414A3/de
Application granted granted Critical
Publication of EP0354414B1 publication Critical patent/EP0354414B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B66B13/22—Operation of door or gate contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/18—Contacts characterised by the manner in which co-operating contacts engage by abutting with subsequent sliding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/16—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift
    • H01H3/161—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift for actuation by moving a closing member, e.g. door, cover or lid
    • H01H3/163—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift for actuation by moving a closing member, e.g. door, cover or lid associated with locking or manipulating means of the closing member

Definitions

  • the invention relates to an elevator shaft door, and in particular to an electromechanical elevator shaft door lock.
  • Landing door locks are required to prevent an elevator car from being driven before the landing door of the floor on which the elevator car is located is closed and locked. After the cabin has left the relevant floor, the lock prevents the landing door from being opened by unauthorized persons from the floor side until the cabin is again in the entry zone of the floor and stops or is stopped. A landing door is locked mechanically when it reaches the closed position. After the mechanical locking, an electrical signal is generated which indicates to the elevator control that the car can be driven.
  • shaft door locks are operated mechanically and electrically whenever an elevator car stops on a floor, they have to be robust and reliable. They should do without lubrication, and the generation of the electrical signal to indicate that the shaft door is locked should also be possible if the components that have to work together do not align. If the electrical signal is not generated after the shaft door has been properly closed and locked, the cabin cannot move down from the floor, so service personnel must be called to remedy the fault.
  • the invention is therefore based on the object, the electrical switch, after perfect mechanical Locking the shaft door generates the electrical signal, improve it, and create a reliable, maintenance-free embodiment.
  • the electrical switch mounted on a shaft door jamb has first and second elongated, fixed electrical contacts, which consist of upper parts which are fastened to an insulating mounting block and lower parts which depend from the mounting block.
  • the lower parts are shaped in such a way that an electrical contact bridge, which is supported by the shaft door, is moved into the electrical switch when the shaft door is closed and after the shaft door is mechanically locked, the electrical switch can be actuated by a downward movement, the Downward movement is derived from the closing movement of the shaft door.
  • the lower parts of the first and second fixed contacts When viewed from the side, the lower parts of the first and second fixed contacts have a substantially U-shaped shape, each with an upper, a lower leg and a connecting bay, the upper legs being components of the upper parts of the fixed contacts and the lower legs one have upward spring centering.
  • the bays of the first and second fixed contacts have outwardly directed arms on their non-adjacent edges, in which closed slots are provided in which pivotable contacts with downwardly directed spring centers are mounted. Between the spring centers of the legs and pivotable contacts, springs are arranged which press the pivotable contacts into a first, oblique position.
  • a contact bridge which is moved downwards after the shaft door has been locked, the pivotable contacts are simultaneously turned in the opposite direction of rotation Spring force pivoted into a second position.
  • Alignment errors between the swiveling contacts are compensated for and good self-cleaning is achieved by friction between the contacts and the contact bridge with each closing and opening.
  • the springs are an active part of the electrical circuit which is switched on when the pivotable contacts are actuated by the contact bridge, the springs and the connections between the pivotable contacts and the slots in the associated arms being connected in parallel.
  • Fig. 1 denotes a shaft door lock, which is arranged on a shaft door jamb 14 and is operatively connected to a shaft door 12 which is only partially shown.
  • the shaft door 12 can also be opened by means of suitable devices which are provided on the car door and on the shaft door 12 and which interlock when stopping on one floor when the car door is opened.
  • the initial opening movement of the cabin door is converted into a counterclockwise rotary movement of an arm 16 arranged on the shaft door 12 and pivotable about an axis 18.
  • An insulated nose 22 is attached to the arm 16 and has a leg 20 which is raised over the upper edge 24 of a lip 26 during the rotational movement.
  • the lip 26 is part of a support 28 which is fastened to a shaft wall 30, directly adjacent to the shaft door jamb 14.
  • the shaft door 12 is thus mechanically unlocked and is carried along by the cabin door as the opening movement continues.
  • the force that holds the arm 16 in the raised position disappears, so that due to its weight it falls downward in a clockwise direction.
  • the leg 20 latches again with the lip 26 of the carrier 28, so that the shaft door 12 can no longer be opened.
  • An electrical switch 32 is in this way with the carrier 28 connected that after the mechanical locking of the shaft door 12, an electrical signal indicating the locking is generated for the elevator control 34 (FIG. 7). After receiving this signal, the elevator control 34 can generate a start signal for the elevator drive, for example a traction sheave or hydraulic drive.
  • the electrical switch 32 has a metallic mounting base plate 36, on which a plate 38 made of electrically insulating material is arranged.
  • a contact arrangement 42 which consists of an electrically insulating mounting block 40 and a first and second elongated metallic contacts 44 and 46, the contacts being arranged at a horizontal distance from one another.
  • the first elongated metallic contact 44 has an upper and a lower part 48 and 54, the upper part 48 being fastened to the mounting block 40 by means of screws 50 and 52.
  • the lower part 54 extends downward from the lower side 56 of the mounting block 40 (FIG. 2).
  • the lower part 54 has a substantially U-shaped shape when viewed from the side, which is formed from a bay 58 and an upper and lower leg 60 and 62, the upper leg 60 being part of the upper part 48 of the first contact 44.
  • the second elongated metallic contact 46 has an upper and a lower part 68 and 74, the upper part 68 being fastened to the mounting block 40 by means of screws 70 and 72.
  • the lower portion 74 which extends downward from the mounting block 40, has a generally U-shaped shape when viewed from the side, which is formed from a bay 78 and upper and lower legs 80 and 82, the upper leg 80 Is part of the upper part 68 of the second contact 46.
  • Bays 58 and 78 have inner edges 84 and 86 which are spaced apart from one another and outer non-adjacent edges 88 and 90 which have outwardly directed arms 92 and 94.
  • the arms 92 and 94, together with the associated bays 58 and 78, are shaped flat together and then bent outwards, forming an angle of 90 degrees to the outer surfaces 96 and 98 of the bays 58 and 78.
  • Closed slots 100 and 102 are provided in the arms 92 and 94, which are aligned horizontally to one another.
  • the slots 100 and 102 extend in the longitudinal direction perpendicular to the plate 38 to the outside.
  • the slots 100 and 102 are wider on the inner, opposite surfaces of the arms 92 and 94 upwards than on the outer surfaces.
  • the first pivotable contact 104 has a first and a second part 108 and 110, which are arranged on opposite sides of the arm 92.
  • the first part 108 is bent downwards, forming an angle 112 of approximately 75 degrees to a plane determined by the second part 110.
  • the first pivotable contact 104 can pivot counterclockwise from a horizontal position with respect to FIG. 1 by approximately 15 degrees, assuming a limited, first position when the first part 108 strikes the arm 92.
  • the second part 110 has a shoulder 114 which is immediately adjacent to the arm 92 and is provided with a bevel 116 from the vertical of approximately 15 degrees, which during the Pivotal movement of the first contact 104 adapts to the changing width of the slot 100.
  • the second part 110 has on its downward surface a spring centering 118 and is provided with two openings 119 and 119 '.
  • the second pivotable contact 106 is constructed in exactly the same way as the first pivotable contact 104. With reference to FIG. 1, the second pivotable contact 106 can pivot clockwise by approximately 15 degrees from a horizontal position, the one when the first is struck Part 108 on arm 94 occupies a limited, first position.
  • the lower legs 62 and 82 of the first and second contacts 44 and 46 have spring centers 120 and 122 on their upward-facing surfaces.
  • threaded holes 124 and 126 are provided, which serve to receive screws 128 and 130, which serve a double function as described in more detail below. Openings 131 and 133 are also provided in the lower legs.
  • 132 and 134 are designated a first and a second spring under pressure, which move the pivotable contacts 104 and 106 in the counterclockwise and clockwise directions (Fig. 1). If the movement is not hindered, the contacts 104 and 106 are pressed into the first position by the springs 132 and 134 (FIG. 7).
  • the first spring 132 is held between the spring centering 118 of the first pivotable contact 104 and the spring centering 120 of the first contact 44
  • the second spring 134 is held between the spring centering 118 of the second pivoting contact 106 and the spring centering 122 of the second contact 46.
  • the first and second springs 132 and 134 are the same Construction, so that only the first spring 132 is described in more detail below.
  • 136 and 138 denote an upper and a lower end of the spring 132, which has, for example, four to five turns.
  • the upper end 136 is bent such that it forms an inverted U-shape.
  • the lower end 138 is only deformed during assembly.
  • the pivotable contacts 104 and 106 and the fixed contacts 44 and 46 are assembled in the same way, so that only the assembly of the pivotable contact 104 and the fixed contact 44 is described below.
  • the upper end 136 of the spring 132 is guided through the opening 119 of the pivotable contact 104, the upper opening of the spring 132 being brought into the required position for the spring centering 118.
  • the upper end 136 is then deformed in the opening 119 such that a metallurgical connection of low electrical resistance is created between the spring 132 and the pivotable contact 104.
  • the depending first part 108 of the pivotable contact 104 is then pushed through the slot 100.
  • the lower opening of the compression spring 132 is then brought into the exact position by means of the spring centering 120, the lower end 138 being guided through the opening 131 of the lower leg 62.
  • the screw 128 is then screwed into the threaded hole 124, the lower end 138 of the spring 132 being bent around the screw 128 and being clamped between the lower surface of the lower leg 62 and the screw head.
  • the length of the screw 128 is selected such that the pivotable contact 104 strikes the end of the screw 128 during the pivoting movement in a clockwise direction, assuming a specific second limit position.
  • the screw 128 fulfills two functions, namely ensuring a low electrical resistance of the connection between the spring 132 and the first contact 44 and the limitation of the pivoting movement of the pivotable contact 104.
  • the pivotable contact 104 will not reach the limit given by the screw 128. In the event of alignment errors, the pivotable contact 104 could be moved beyond the limit position, but this is then prevented by the screw 128.
  • the insulated nose 22 attached to the arm 16 carries a metallic contact bridge 142.
  • the contact bridge 142 contacts both pivotable contacts 104 and 106 and pivots it circularly in opposite directions, from a position indicated by solid lines in Fig. 7, to a position shown by broken lines.
  • insulated tab 22 will contact the upper edge 24 of lip 26 of bracket 28, actuating pivotable contacts 104 and 106 has ended and they have been pivoted about 15 degrees into a horizontal position without reaching the second limit position given by the screws 128 and 130.
  • the first contact 44 is connected to the elevator control 34 via a screw 146 and a wire 144, and the second contact 46 via a screw 150 and a wire 148 (FIG. 7). If the shaft door 12 is now mechanically locked in the closed position by pivoting the arm 16 down into the carrier 28, the contact bridge 142 actuates both pivotable contacts 104 and 106, with the pivoting movement by 15 degrees preventing oxidation of the pivotable contacts 104 and 106 from cleaning and the contact bridge 142 is caused and misalignments are compensated.
  • the contact bridge 142 completes an electrical circuit which, starting from the elevator control 34 via the wire 144, the screw 146, the first contact 44, the connection between the leg 62 of the first contact 44 and the end 138 of the spring 132, the spring 132, the metallurgical connection between the end 126 of the spring 132 and the pivotable contact 104, the adjoining, tight connection between the pivotable contact 104 and the contact bridge 142, the adjoining, tight connection between the contact bridge 142 and the pivotable contact 106, and from this leads back to the elevator control 34, this part of the electrical circuit containing the spring 134 being the same for the above corresponds to the first contact 44 described.
  • the good electrical connection through the springs 132 and 134 which is parallel to the higher resistance connection between the arms 92 and 94 and the pivotable contacts 104 and 106, ensures that an electrical signal can be generated which indicates the elevator control 34 that the shaft door 12 is mechanically locked.
  • the shaft door lock 10 is self-cleaning since the contact surfaces of the contact bridge 142 and the pivotable contacts 104 and 106 rub against one another continuously with each locking operation. This makes the shaft door lock 10 more reliable.
  • the screws 128 and 130 prevent inadmissible bending of the springs 132 and 134 if, when misalignment occurs, the movement of the pivotable contacts 104 and 106 caused by the contact bridge would exceed the second limit position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Elevator Door Apparatuses (AREA)
  • Lock And Its Accessories (AREA)
  • Hinges (AREA)
EP89113854A 1988-08-12 1989-07-27 Système de verrouillage pour la porte d'une cage d'ascenseur Expired - Lifetime EP0354414B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89113854T ATE88981T1 (de) 1988-08-12 1989-07-27 Aufzugsschachttuer-verriegelung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US231407 1988-08-12
US07/231,407 US4840254A (en) 1988-08-12 1988-08-12 Elevator hoistway door interlock

Publications (3)

Publication Number Publication Date
EP0354414A2 true EP0354414A2 (fr) 1990-02-14
EP0354414A3 EP0354414A3 (en) 1990-07-18
EP0354414B1 EP0354414B1 (fr) 1993-05-05

Family

ID=22869121

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89113854A Expired - Lifetime EP0354414B1 (fr) 1988-08-12 1989-07-27 Système de verrouillage pour la porte d'une cage d'ascenseur

Country Status (6)

Country Link
US (1) US4840254A (fr)
EP (1) EP0354414B1 (fr)
KR (1) KR900003054A (fr)
AT (1) ATE88981T1 (fr)
DE (1) DE58904257D1 (fr)
ES (1) ES2041907T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0558299A3 (fr) * 1992-02-24 1993-09-29 Otis Elevator Company Verrouillage rotatif d'une porte d'ascenseur

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1316302B1 (it) * 2000-01-26 2003-04-10 Sematic Italia Spa Serratura modulare per porte di ascensori
US6659514B2 (en) * 2001-05-04 2003-12-09 Thyssen Elevator Capital Corp. Swinging elevator hatchway door interlock
CN105489408B (zh) * 2016-01-14 2018-06-22 上海华晟电器有限公司 一种电磁式电梯行程开关装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE689749C (de) * 1935-09-27 1940-04-01 Waldemar Rothmann Tuerkontakt, insbesondere fuer Aufzuege
US2307542A (en) * 1942-03-18 1943-01-05 Otis Elevator Co Interlock for elevator doors
FR1153293A (fr) * 1956-05-09 1958-03-04 Interrupteur
DE1456405A1 (de) * 1966-11-15 1969-05-08 Winter Fritz Sicherheitseinrichtung an Personenaufzuegen
DE1640649B1 (de) * 1966-12-07 1972-02-03 Hans & Josef Kronenberg Ohg Elektrischer sicherheitsschalter
US4483420A (en) * 1982-07-01 1984-11-20 Byrne Francis J Elevator door interlocking apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0558299A3 (fr) * 1992-02-24 1993-09-29 Otis Elevator Company Verrouillage rotatif d'une porte d'ascenseur

Also Published As

Publication number Publication date
DE58904257D1 (de) 1993-06-09
EP0354414A3 (en) 1990-07-18
US4840254A (en) 1989-06-20
ES2041907T3 (es) 1993-12-01
ATE88981T1 (de) 1993-05-15
KR900003054A (ko) 1990-03-23
EP0354414B1 (fr) 1993-05-05

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