US3783977A - Door actuation apparatus with locking mechanism for elevators - Google Patents

Door actuation apparatus with locking mechanism for elevators Download PDF

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Publication number
US3783977A
US3783977A US00209826A US3783977DA US3783977A US 3783977 A US3783977 A US 3783977A US 00209826 A US00209826 A US 00209826A US 3783977D A US3783977D A US 3783977DA US 3783977 A US3783977 A US 3783977A
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Prior art keywords
door
entrainment
parallelogram
elevator cabin
elevator
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US00209826A
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English (en)
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A Voser
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Inventio AG
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Inventio AG
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    • 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
    • B66B13/12—Arrangements for effecting simultaneous opening or closing of cage and landing doors

Definitions

  • the elevator cabin door is movable through the agency of a thrust crank drive located in a dead-center position when the elevator cabin door is closed, such thrust crank drive possessing a crank wheel driven by a motor arranged at the elevator cabin through the agency of a speed reduction drive.
  • the coupling mechanism incorporates an entrainment parallelogram mounted at the elevator cabin door and forming the entrainment member of the coupling mechanism.
  • An actuation mechanism serves to actuate the entrainment parallelogram.
  • At least one pin member is secured to the elevator shaft door.
  • the entrainment parallelogram cooperates with such pin member for the purpose of coupling the elevator shaft door with the elevator cabin door.
  • a blocking lever is connected for movement with the entrainment parallelogram.
  • a stop member is secured to the elevator cabin and cooperates with said blocking lever to prevent opening of the elevator cabin door when the blocking lever is located within the effective range of said stop member and permits opening of said elevator cabin door when said blocking lever is located outside of the effective range of said stop member.
  • the present invention relates to a new and improved door actuation or drive apparatus equipped with a locking mechanism for use in elevators, wherein an elevator cabin door which can be positively connected with an elevator shaft door at the region of the relevant or associated floor or storey by means of a coupling mechanism, can be moved by a thrust crank drive located in a dead-center position when the door is closed, the crank wheel of which is driven by a motor arranged upon the elevator cabin through the agency of a speedreduction drive.
  • a double lever is rotatably arranged at the cabin door which, on the one hand, at the region of a floor engages with a coupling rail secured to the elevator shaft door and, on the other hand, is connected through the agency of a connection rod with a locking lever rotatably mounted at the cabin door.
  • the double lever possesses at both of its ends a respective contact roller and under the weight of the locking mechanism and connection rod is retained in an inclined position when the door is closed.
  • the one roller of the double lever initially comes to bear against the coupling rail.
  • the double lever is rotated in such a fashion that both rollers are disposed vertically above one another.
  • the cabin door is unlocked through the agency of the connection rod.
  • both rollers of the double lever have come to bear against the coupling rail the elevator shaft door is entrained by the elevator cabin door.
  • the cabin door cannot be opened by the passengers from within the cabin since the double lever, due to the absence of the coupling rail, upon moving the door is not able to rotate and such therefore remains locked.
  • the cabin is already located at the region of a floor or when a defect arises is brought to such location, then, the passengers can manually open the door since in this case the coupling rail of the elevator shaft door rotates the double lever and unlocks the elevator cabin door.
  • the construction is designed such that at the beginning of the door opening operation the door actuating-thrust crank drive is located in a dead-center position and the entrainment-sliding crank drive is located almost offset with respect thereto in a position of large piston displacement. Consequently, there is insured that at the beginning of the door opening operation the entrainment elements rapidly engage with the coupling elements, whereas the door practically does not move. Since during normal operation and with the door closed, the door actuating-thrust crank drive is located in a dead-center position, no further locking mechanism is required for the cabin door.
  • an entrainment mechanism which consists of an expandable entrainment parallelogram arranged at the cabin door.
  • This expandable entrainment parallelogram embodies two parallel coupling rails hingedly interconnected through the intermediary of two parallel double levers rotatably mounted at the cabin door. Both of the coupling rails are moved away from one another by means of a tension spring engaging with such coupling rails and such coupling rails are pressed together by means of a roller lever moved by electromag netic force.
  • the entrainment parallelogram cooperates with two pins arranged at the shaft door which, when the elevator cabin is located at one of the floors, come to lie between both coupling rails.
  • One such pin is stationarily mounted and the other displaceably mounted.
  • the displaceably mounted pin actuates a shaft door-locking mechanism.
  • an electrical door lock which, of course, constitutes an additional expense.
  • a primary objective of the present invention is to provide a novel construction of such type door actuating or drive apparatus which effectively and reliably fulfills the existing need in the art and is not associated with the previously mentioned drawbacks and limitations of the state-of-the-art constructions.
  • Still another and more'specific object of the present invention relates to a new and improved construction of door drive apparatus equipped with a simple and reliably operating locking mechanism allowing for relatively noiseless and uniform movement of the cabin and shaft doors when the elevator cabin is located at the region of the access area of a floor to the elevator and which prevents opening of the cabin door by a passenger when the elevator cabin is located outside of this region.
  • Yet a further significant object of the present invention relates to a new and improved construction of door drive apparatus equipped with a locking mechanism for elevators or the like which is relatively simple in construction, extremely reliable inoperation, not readily subject to breakdown, requires a minimum of maintenance and servicing, and permits opening of the elevator cabin and shaft doors only when the elevator cabin is located at the region of the level of a floor of the building permitting normal access to the cabin while preventing opening of the cabin door by a passenger when the cabin is located outside of this elevator cabin access region.
  • the door actuating or drive apparatus equipped with a locking mechanism for use with elevators and as contemplated by this invention embodies a blocking or locking lever connected for movement with a known entrainment parallelogram mounted at the cabin door and forming the entrainment means of the coupling mechanism.
  • the entrainment parallelogram can be actuated by an actuation mechanism against spring force and for the purpose of coupling the elevator shaft door cooperates with at least one pin member secured to such elevator shaft door.
  • the blocking lever is pivoted or deflected out along a path of movement described or determined by the door movement during such time as the entrainmerit parallelogram moves between an actuated position until reaching a non-actuated position limited by contact with the pin member.
  • This path of movement is located outside of the effective range of a stop member secured to the elevator cabin.
  • such blocking lever is deflected-out into a loaded nonactuated position of the entrainment parallelogram past the position limited by the pin member such blocking lever is located in a path of movement disposed within the effective range of the stop member secured to the elevator cabin.
  • FIG. I is a front view of a preferred constructional embodiment of inventive door actuating or drive apparatus equipped with a bipartite centrally-opening elevator cabin door;
  • FIG. 2 is a plan view of the door actuating mechanism of FIG. 1 together with an elevator shaft door;
  • FIG. 3 is an enlarged fragmentary view illustrating details of the entrainment parallelogram in its collapsed or pressed-together position
  • FIG. 4 is a view similar to FIG. 3, but this time showing the entrainment parallelogram in a limited expanded position
  • FIG. 5 is a view similar to FIG. I, but illustrating the entrainment parallelogram in its extreme expanded or enlarged position.
  • FIGS. 1 and 2 designates a conventional elevator cabin, the access opening 1.! of which can be closed by a bipartite central-opening cabin door arrangement 2 embodying both of the door wings or components 2.1 or 2.2.
  • a support plate 3 is secured to the elevator cabin 1 above the cabin door arrangement 2, the lower portion of this support plate being constructed to provide a traveling rail or track 3.1.
  • the door portions 2.1 and 2.2 are displaceably suspended and guided at such traveling rail or track 3.1 through the agency of traveling rollers 2.12 and 2.22..
  • These traveling rollers are supported by roller mounts 2.11 and 2.21 respectively, arranged at the door wings or portions 2.1 and 2.2 respectively.
  • the vertical degree of freedom of movement thereof in the upward direction of such rollers is delimited by a rail 3.2 secured to the support plate 3.
  • the upper edgeof the support plate 3 is equipped with a right-angled offset portion 3.3 upon which there are mounted a suitable electric motor 4 and speed reduction drive 5.
  • the speed reduction drive or step-down drive 5 consists of a two-stage belt drive, by means of which the electric motor 4 drives a crank wheel 6 of a push or thrust crank drive 6 to 1 1 for controlling door movement, crank wheel 6 being mounted at support plate 3.
  • a double-arm crank lever 7 is connected with the crank wheel 6, this crank lever '7 possessing a pivot point 7.1, and the crank arms 7.2 and 7.3 of which are each equipped at their respective ends with a respective pivot or hinge point 7.21 and 7.31.
  • the push rod 8 is hingedly connected at its other end with a pivot or hinge point 8.1 of an extended arm 10 secured to the door portion 2.1, whereas the push rod 9 is hingedly connected with a pivot or hinge point 9.1 of an extended arm 11 secured to the other door portion 2.2.
  • the thrust crank drive 6-11 is located in a dead-center position when the cabin door arrangement 2 is closed, that is to say, when the pivot points 7.21, 7.31, 8.1 and 9.1 together with the pivot point 7.1 of the crank lever 7 and the crank wheel 6 are located along a straight line. In this position a cam 6.1 secured to the crank wheel 6 bears against a stop or impact member 3.4 connected with the support plate 3.
  • a bipartite, centrally-opening elevator shaft door 12 which is situated opposite the cabin door arrangement 2, as best recognized by referring to FIG. 2.
  • This elevator shaft door 12 closes an access opening 13.1 at the elevator shaft wall 13.
  • Shaft door 12 is composed of the shaft door portions or wings 12.1 and 12.2. Now for movement of the elevator shaft door 12 both of the door portions 12.1 and 12.2 are force-lockingly connected by means of a respective coupling mechanism with the oppositely situated door portions 2.1 and 2.2 of the elevator cabin door arrangement 2. Since these coupling mechanisms are essentially identical the description of one should suffice.
  • each coupling mechanism will be understood to embody an entrainment parallelogram 14 arranged at the associated door portions 2.1 and 2.2 of the cabin door arrangement 2.
  • Entrainment parallelogram 14- is expandable under spring tension and actuatable by means of an actuation mechanism to be considered more fully hereinafter.
  • the entrainment parallelogram 14 engages be tween two pins 15 and their rollers 15.1, which pins are secured to the door portions 12.1 and 12.2 of the elevator shaft door 12.
  • the entrainment parallelogram 14 possesses two coupling rails 14.1 which are articulated with one another by means of two double levers 14.2 pivotably mounted at the cabin door portions 2.1 and 2.2 respectively.
  • the coupling rails 14.1 are constructed as so-called sliding curves having bevelled or inclined portions 14.11 at both ends.
  • a tension spring 14.3 engaging with one of the double levers 14.2 and one of the coupling rails 14.1 serves to spread or expand the entrainment parallelogram 14.
  • the actuation mechanism which compresses together the entrainment parallelogram 14 against the spring force, is a force-locking sliding crank drive 17 to 19 which is positively or form-lockingly connected with the door actuatingor door drivecrank wheel 6.
  • This sliding crank drive 17 to 19 embodies an actuation rail 13 hingedly displaceably mounted by means of two levers 17 at the support plate 3, the actuation rail 18 being actuated by means of a roller lever 19 secured to the crank wheel 6 and such actuation of rail 18 being against the force of a tension spring 20 arranged between one of the levers 17 and the support plate 3.
  • Actuation of the entrainment parallelogram 14 occurs through the agency of a roller lever 14.4 secured to such entrainment parallelogram.
  • a blocking or locking lever 21 is connected for movement with the entrainment parallelogram 14, this blocking lever cooperating with a stop 22 attached to the support plate 3.
  • the described door drive apparatus functions in the following manner:
  • the door actuating or drive apparatus assumes the position depicted in FIG. 1 during travel of the elevator cabin 1.
  • the electric motor 4 is switched-in to rotate in counterclockwise direction and produces a rotational moment serving to retain the thrust crank drive 6 to 11 in dead-center position during which time the cam 6.1 of the crank wheel 6 bears against the stop or impact 3.4.
  • This dead-center position insures that the cabin door arrangement 2 will be maintained closed and cannot be opened by the passengers.
  • the sliding crank drive 17 to 19 thus assumes a position of large displacement and by means of the actuation rail 18 and through the agency of the roller lever 14.4 retains each entrainment parallelogram 14 in its collapsed or pressed together position as depicted in FIG. 3. In this position the blocking or locking lever 21 is deflected or pivoted upwardly.
  • the entrainment parallelogram moves with play between the pins 15 and rollers 15.1 of the shaft door 12.
  • the electric motor 4 is switched-in so as to rotate in the opposite direction, switching-in of the electric motor 4 occurring approximately 25 cm. prior to the time that the elevator cabin 1 and bottom of the relevant floor or storey are level or flush with one another. Since during such time as the cabin door arrangement 2 is closed the thrust crank drive 6 to 11 is located in dead-center position and the sliding crank drive 17 to 19 is located in a position of large displacement, it should be apparent that during the subsequent rotation of the crank wheel 6 in clockwise direction the entrainment parallelogram 14 is initially expanded or spread very rapidly, whereas the elevator door portions 2.1 and 2.2, as a practical matter, do not experience any movement.
  • the entrainment parallelogram 14 travels between the associated pins 15 of the elevator shaft door 12, the coupling rails 14.1 coming to bear against the shaft door.
  • the entrainment parallelogram 14 is located in an expanded or spread position, as depicted in FIG. d, and is bounded by the pins 15.
  • the elevator shaft door 12 is thus positively or form-lockingly coupled without play with the elevator cabin door arrangement 2, so that during further rotation of the crank wheel 6 there occurs a uniform noiseless opening of both doors 2 and 12.
  • the blocking lever 21 is rocked into a position where it moves without contact above and past the stop or stop member 22 during the door opening operation.
  • the thrust crank drive 6 to 11 upon disappearance of the rotational moment of the electric motor 4, will be moved out of the deadcenter position under the action of the spring force of the tension spring 14.3 of the entrainment parallelogram 14 effective via the roller lever 14.4 and the slifing crank drive 17 to 19.
  • the elevator cabin 1 is located coincidentally at the region of an elevator shaft door 12, then, the spreading or expanding movement of the entrainment parallelogram 1 1 is again limited by the pins or pin members 15 of the shaft door 12.
  • the elevator cabin door 2 together with the therewith coupled shaft door 12 can be manually opened by a passenger since the blocking lever 21 during the limited expanded position of the entrainment parallelogram 14! is disposed outside of the effective region of the stop 22.
  • the elevator cabin 1 must be brought by means of outside assistance to the region of an elevator shaft door 12.
  • the entrainment parallelogram 14- also can be introduced between the pins 15 of the elevator shaft door 12 in this extreme spread position. Consequently, the entrainment parallelogram 14 will be returned back to the above-considered limited spread position, whereby the blocking lever 21 again is rocked-out of the effective range of the stop or impact member 22, and the doors 2 and 12 can be manually opened without difficulty from the side of the cabin or the relevant building floor.
  • inventive embodiment can be readily employed for singleor telescopicsliding doors.
  • inventive embodiment can be readily employed for singleor telescopicsliding doors.
  • differently operating entrainment parallelograms such as, for instance, a parallelogram which is collapsed or pressed together by means of a spring and spread by means of an actuation mechanism and which, for instance, cooperates with a pin which can be introduced between the coupling rails.
  • a door actuating apparatus for elevators wherein an elevator cabin door is positively connected at the region of the floor ofa building by a coupling mechanism with an elevator shaft door located at such building floor, said elevator cabin door being movable through the agency of a thrust crank drive located in a deadcenter position when the elevator cabin door is closed, said thrust crank drive possessing a crank wheel driven by a motor arranged at the elevator cabin through the agency of speed reduction means, the improvement comprising said coupling mechanism incorporating an entrainment parallelogram forming the entrainment member of said coupling mechanism, means mounting said entrainment parallelogram at the elevator cabin door, an actuation mechanism for actuating said entrainment parallelogram, at least one pin member secured to the elevator shaft door at a location externally of said entrainment parallelogram, said entrainment parallelogram cooperating with said pin member for coupling said elevator shaft door with said elevator cabin door, a blocking lever connected for movement with said entrainment parallelogram, stop means secured to the elevator cabin and cooperating with said blocking lever to
  • a door actuating apparatus equipped with a locking mechanism for elevators, wherein an elevator cabin door is positively connected at the region of the floor of a building by a coupling mechanism with an elevator shaft door located at such building floor, said elevator cabin door being movable through the agency of a thrust crank drive located in a dead-center position when the elevator cabin door is closed, said thrust crank drive possessing a crank wheel driven by a motor arranged at the elevator cabin through the agency of speed reduction means, the improvement comprising said coupling mechanism incorporating as entrainment parallelogram forming the entrainment member of said coupling mechanism, means mounting said entrainment parallelogram at the elevator cabin door, spring means for loading said entrainment parallelogram, an actuation mechanism for actuating said entrainment parallelogram against the spring force of said spring means, at least one pin member secured to the elevator shaft door, said entrainment parallelogram cooperating with said pin member for coupling said elevator shaft door with said elevator cabin door, a blocking lever connected for movement with said entrainment parallelogram, a stop
  • said entrainment parallelogram comprises two substantially vertically extending coupling rails and two double levers, means mounting said two double levers at said elevator cabin door, said two double levers pivotably interconnecting said coupling rails with one another, said spring means comprising a tension spring for urging said entrainment parallelogram to spread under the action of its spring force, means for connecting said actuation mechanism with the thrust crank drive, said actuation mechanism compressing together said tension spring at the end of the closing operation of said elevator cabin door.

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  • Elevator Door Apparatuses (AREA)
  • Component Parts Of Construction Machinery (AREA)
US00209826A 1970-12-30 1971-12-20 Door actuation apparatus with locking mechanism for elevators Expired - Lifetime US3783977A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1939770A CH523199A (de) 1970-12-30 1970-12-30 Türantriebsvorrichtung mit Verriegelungsmechanismus für Aufzüge

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US3783977A true US3783977A (en) 1974-01-08

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US00209826A Expired - Lifetime US3783977A (en) 1970-12-30 1971-12-20 Door actuation apparatus with locking mechanism for elevators

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US (1) US3783977A (it)
AT (1) AT312864B (it)
CH (1) CH523199A (it)
DE (1) DE2164980C2 (it)
FR (1) FR2120833A5 (it)
GB (1) GB1302310A (it)
IT (1) IT944562B (it)

Cited By (26)

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US4015688A (en) * 1975-06-23 1977-04-05 Karl Mangel Master door operator for vertically movable elevator gates and landing doors
US4108283A (en) * 1977-01-21 1978-08-22 Karl Mangel Master operator for vertically moving elevator car doors
JPS57126388A (en) * 1981-12-21 1982-08-06 Tokyo Shibaura Electric Co Switchgear for door of elevator
FR2625991A1 (fr) * 1988-01-14 1989-07-21 Soretex Dispositif d'entrainement d'une porte de cabine d'ascenseur
US4947964A (en) * 1988-03-18 1990-08-14 Inventio Ag Door drive apparatus with locking mechanism for elevators
EP0410774A2 (en) * 1989-07-27 1991-01-30 Otis Elevator Company Elevator system hoistway door operating mechanism
US5005673A (en) * 1989-09-27 1991-04-09 Otis Elevator Company Coordinated elevator car door-hall door movement
US5141080A (en) * 1990-03-21 1992-08-25 Kone Elevator Gmbh Device and procedure for opening of an elevator
EP0676360A1 (en) * 1994-04-08 1995-10-11 Otis Elevator Company Elevator car door coupling
ES2083314A2 (es) * 1991-09-20 1996-04-01 Ceita Srl Mecanismo para mandar la apertura y el cierre de puertas plegables del rellano, para ascensores.
US5544720A (en) * 1994-02-21 1996-08-13 Inventio Ag Entraining and unlatching apparatus for elevator doors
US5575357A (en) * 1994-04-25 1996-11-19 Inventio Ag Entraining apparatus for elevator doors
US5651427A (en) * 1995-10-31 1997-07-29 Otis Elevator Company Elevator door coupling and hold-close apparatus
US5651428A (en) * 1994-04-08 1997-07-29 Otis Elevator Company Stationary actuator moving vane elevator car door coupling
US5732796A (en) * 1995-10-31 1998-03-31 Otis Elevator Company Elevator car evacuation deterrent device
US6173815B1 (en) * 1997-02-28 2001-01-16 Kone Corporation Door coupler and locking device
US6189658B1 (en) * 1995-09-13 2001-02-20 Kone Corporation Procedure for moving the landing door of an elevator, and a door coupler
US6631788B2 (en) 2001-03-12 2003-10-14 Mitsubishi Denki Kabushiki Kaisha Elevator system with safety installation
US20030209391A1 (en) * 2002-05-08 2003-11-13 Mitsubishi Denki Kabushiki Kaisha Sliding door system
US20060107785A1 (en) * 2004-11-19 2006-05-25 Sematic Italia S.P.A. Active slide for the doors of lifts' cabins
CN1323021C (zh) * 2003-10-14 2007-06-27 因温特奥股份公司 将电梯轿厢门与电梯系统层门耦合的离合器
EP2072449A1 (de) * 2007-12-21 2009-06-24 Inventio Ag Türantriebsvorrichtung für Aufzugsanlagen
EP2138442A1 (de) * 2008-06-25 2009-12-30 Inventio Ag Aufzugtürsystem mit Kabinentürverriegelung
CN102765652A (zh) * 2012-06-22 2012-11-07 南通江中光电有限公司 一种带有门刀限位装置的电梯门刀组件
US20150203329A1 (en) * 2012-06-18 2015-07-23 Sematic S.P.A. Lift cages with improved blocking/releasing devices
US10207900B2 (en) * 2014-10-15 2019-02-19 Mitsubishi Electric Corporation Elevator car door apparatus

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CH613911A5 (it) * 1977-01-10 1979-10-31 Inventio Ag
US4169732A (en) * 1978-01-09 1979-10-02 International Business Machines Corporation Photosensitive coating composition and use thereof
FR2421134A1 (fr) * 1978-03-30 1979-10-26 Slycma Dispositif pour l'ouverture et la fermeture des portes de cabine et palieres d'une installation d'ascenseur
DE2929575A1 (de) * 1979-07-21 1981-02-05 Haushahn C Gmbh Co Antriebsvorrichtung fuer eine tuer, insbesondere aufzugtuer
CH663406A5 (de) * 1984-05-28 1987-12-15 Inventio Ag Tuerantriebsvorrichtung mit verriegelungsmechanismus fuer aufzuege.
US4926974A (en) * 1989-02-13 1990-05-22 Inventio Ag Elevator car with improved car door clutch
US4926975A (en) * 1989-02-13 1990-05-22 Inventio Ag Elevator car with improved door lock
FR2725190B1 (fr) * 1994-09-29 1996-11-15 Otis Elevator Co Dispositif de liaison d'une porte de cabine d'ascenseur et d'une porte de palier pour leur ouverture et fermeture synchrones
DE9416316U1 (de) * 1994-10-10 1996-02-08 Stahlbau Podelwitz GmbH, 04448 Podelwitz Aufzugsanlage
DE29508499U1 (de) * 1995-05-22 1996-09-26 Franz Xaver Meiller Fahrzeug- und Maschinenfabrik - GmbH & Co KG, 80997 München Betätigungsvorrichtung für eine Aufzugtürkombination
AU2012358577B2 (en) * 2011-12-21 2016-06-09 Inventio Ag Cage door-shaft door coupling
CN102701054A (zh) * 2012-06-21 2012-10-03 南通江中光电有限公司 一种带有弹性拉伸组件的电梯门刀装置
CN105438941B (zh) * 2015-12-25 2017-09-12 林肯电梯(中国)有限公司 门刀机构

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US3605952A (en) * 1969-09-30 1971-09-20 Otis Elevator Co Door coupling apparatus for elevator systems

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US3065826A (en) * 1958-07-30 1962-11-27 Otis Elevator Co Entranceway apparatus and closure means for elevators
US3605952A (en) * 1969-09-30 1971-09-20 Otis Elevator Co Door coupling apparatus for elevator systems

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4015688A (en) * 1975-06-23 1977-04-05 Karl Mangel Master door operator for vertically movable elevator gates and landing doors
US4108283A (en) * 1977-01-21 1978-08-22 Karl Mangel Master operator for vertically moving elevator car doors
JPS57126388A (en) * 1981-12-21 1982-08-06 Tokyo Shibaura Electric Co Switchgear for door of elevator
FR2625991A1 (fr) * 1988-01-14 1989-07-21 Soretex Dispositif d'entrainement d'une porte de cabine d'ascenseur
US4947964A (en) * 1988-03-18 1990-08-14 Inventio Ag Door drive apparatus with locking mechanism for elevators
EP0410774A2 (en) * 1989-07-27 1991-01-30 Otis Elevator Company Elevator system hoistway door operating mechanism
EP0410774A3 (en) * 1989-07-27 1992-06-03 Otis Elevator Company Elevator system hoistway door operating mechanism
US5005673A (en) * 1989-09-27 1991-04-09 Otis Elevator Company Coordinated elevator car door-hall door movement
US5141080A (en) * 1990-03-21 1992-08-25 Kone Elevator Gmbh Device and procedure for opening of an elevator
ES2083314A2 (es) * 1991-09-20 1996-04-01 Ceita Srl Mecanismo para mandar la apertura y el cierre de puertas plegables del rellano, para ascensores.
US5544720A (en) * 1994-02-21 1996-08-13 Inventio Ag Entraining and unlatching apparatus for elevator doors
EP0676360A1 (en) * 1994-04-08 1995-10-11 Otis Elevator Company Elevator car door coupling
US5538106A (en) * 1994-04-08 1996-07-23 Otis Elevator Company Rotationally stiff elevator car door coupling
SG85060A1 (en) * 1994-04-08 2001-12-19 Otis Elevator Co Elevator car door coupling
US5651428A (en) * 1994-04-08 1997-07-29 Otis Elevator Company Stationary actuator moving vane elevator car door coupling
US5575357A (en) * 1994-04-25 1996-11-19 Inventio Ag Entraining apparatus for elevator doors
US6189658B1 (en) * 1995-09-13 2001-02-20 Kone Corporation Procedure for moving the landing door of an elevator, and a door coupler
US5732796A (en) * 1995-10-31 1998-03-31 Otis Elevator Company Elevator car evacuation deterrent device
US5651427A (en) * 1995-10-31 1997-07-29 Otis Elevator Company Elevator door coupling and hold-close apparatus
US6173815B1 (en) * 1997-02-28 2001-01-16 Kone Corporation Door coupler and locking device
US6631788B2 (en) 2001-03-12 2003-10-14 Mitsubishi Denki Kabushiki Kaisha Elevator system with safety installation
US20030209391A1 (en) * 2002-05-08 2003-11-13 Mitsubishi Denki Kabushiki Kaisha Sliding door system
US6962239B2 (en) 2002-05-08 2005-11-08 Mitsubishi Denki Kabushiki Kaisha Sliding door system with optical detector for safe door opening and closing
CN1323021C (zh) * 2003-10-14 2007-06-27 因温特奥股份公司 将电梯轿厢门与电梯系统层门耦合的离合器
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EP2138442A1 (de) * 2008-06-25 2009-12-30 Inventio Ag Aufzugtürsystem mit Kabinentürverriegelung
WO2009156256A3 (de) * 2008-06-25 2010-04-08 Inventio Ag Aufzugtürsystem mit kabinentürverriegelung
CN102076595A (zh) * 2008-06-25 2011-05-25 因温特奥股份公司 带有轿厢门锁紧装置的电梯门系统
US20110186386A1 (en) * 2008-06-25 2011-08-04 Rudolf Gilli Elevator door system comprising a car door locking mechanism
CN102076595B (zh) * 2008-06-25 2013-08-21 因温特奥股份公司 带有轿厢门锁紧装置的电梯门系统
US8607937B2 (en) 2008-06-25 2013-12-17 Inventio Ag Elevator door system comprising a car door locking mechanism
KR101449088B1 (ko) 2008-06-25 2014-10-08 인벤티오 아게 카 도어 잠금 기구를 포함하는 엘리베이터 도어 시스템
US20150203329A1 (en) * 2012-06-18 2015-07-23 Sematic S.P.A. Lift cages with improved blocking/releasing devices
US9663329B2 (en) * 2012-06-18 2017-05-30 Sematic S.P.A. Lift cages with improved blocking/releasing devices
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Also Published As

Publication number Publication date
GB1302310A (it) 1973-01-10
AT312864B (de) 1974-01-25
CH523199A (de) 1972-05-31
DE2164980C2 (de) 1982-09-23
DE2164980A1 (de) 1972-07-27
IT944562B (it) 1973-04-20
FR2120833A5 (it) 1972-08-18

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