WO2025002981A1 - Verfahren und steuersystem zum öffnen und/oder schliessen einer kabinentür einer aufzugkabine und einer schachttür der aufzugsanlage - Google Patents
Verfahren und steuersystem zum öffnen und/oder schliessen einer kabinentür einer aufzugkabine und einer schachttür der aufzugsanlage Download PDFInfo
- Publication number
- WO2025002981A1 WO2025002981A1 PCT/EP2024/067264 EP2024067264W WO2025002981A1 WO 2025002981 A1 WO2025002981 A1 WO 2025002981A1 EP 2024067264 W EP2024067264 W EP 2024067264W WO 2025002981 A1 WO2025002981 A1 WO 2025002981A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- door
- follower
- car
- shaft
- opening
- 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.)
- Ceased
Links
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
- B66B13/12—Arrangements for effecting simultaneous opening or closing of cage and landing doors
- B66B13/125—Arrangements for effecting simultaneous opening or closing of cage and landing doors electrical
-
- 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
- B66B13/06—Door or gate operation of sliding doors
- B66B13/08—Door or gate operation of sliding doors guided for horizontal movement
Definitions
- the present invention relates to an elevator system. Furthermore, the invention relates to a method and a control system for opening and/or closing a car door of an elevator car and a shaft door of the elevator system.
- At least one elevator car can typically be moved in an elevator shaft between height levels of different floors in a building.
- the elevator car is held by a rope-like support element.
- the support elements generally run over a traction sheave, which can be driven in rotation by a drive machine.
- Such an elevator car has a car door opening through which the elevator car can be entered and/or exited, and at least one car door for closing or opening the car door opening.
- the car doors of elevator cars are usually designed as sliding doors, for example as telescopic sliding doors.
- the elevator car can have two car doors that move towards each other during the closing process and away from each other during the opening process.
- the elevator car also has a car door drive that is provided for moving the car door.
- the elevator shaft has two or more shaft door openings arranged one above the other, each of which has at least one shaft door. If the elevator car has two car doors, two shaft doors can be arranged at each of the shaft door openings. If the elevator car stops at the corresponding shaft door on one of the floors, the Car door mechanically coupled to the shaft door. After coupling, both the car door and the shaft door can be opened and closed again by the car door drive. Alternatively, it is possible to open or close both the car door and the shaft door using a specially designed active door drive. With this variant, a mechanical coupling that transfers the car door movement caused by the car door drive to the shaft door is no longer necessary.
- both the car door and the shaft door can only perform an opening movement if the car door is at the same height as the shaft door in order to ensure the safety of the elevator system. Furthermore, it is advantageous to ensure that the car door and the shaft door can be opened and closed in a coordinated manner, i.e. in particular synchronously.
- WO 2022/228959 A1 describes an elevator system with an elevator car that can be moved in an elevator shaft, a car door arranged on the elevator car, a car door drive for closing and/or opening the car door, at least one shaft door arranged on a door opening of the elevator shaft, a shaft door drive for closing and/or opening the shaft door, a car door control unit by means of which the car door drive can be directly controlled, and a shaft door control unit by means of which the shaft door drive can be directly controlled.
- the car door control unit and the shaft door control unit are connected to one another via a communications connection, preferably wirelessly, so that synchronous opening and/or closing of the shaft door and the car door is possible.
- Exact positions of the shaft door or the car door can be determined by means of an encoder that is coupled to the respective door drive.
- the encoder generates a position signal that is representative of the state of the respective door drive and that can be used to determine the position of the respective door. This can already produce very good results. However, in some situations and/or elevator systems, even more precise coordination of the door opening and closing movement is desired.
- an elevator system in which a car door and corresponding shaft doors can be opened and closed as synchronously and/or uniformly as possible.
- a method and a Control systems for opening and/or closing the car door and the shaft door must exist to ensure that the car door and a corresponding shaft door can be opened and closed as synchronously and/or uniformly as possible.
- a method for opening and/or closing a car door of an elevator car and a shaft door of an elevator system is described.
- the elevator car is arranged in a vertically displaceable manner in an elevator shaft of a building and has a car door opening for entering or leaving the elevator car and a car door for opening or closing the car door opening.
- the shaft door is arranged on a floor of the building at a shaft door opening of the elevator shaft and is designed to open or close the shaft door opening.
- the car door or the shaft door is designed as a guide door and the other of the two doors is designed as a follower door.
- the method comprises: generating a guide control signal for opening or closing the guide door depending on a predetermined guide door travel curve after the elevator car has arrived at the floor; generating a position signal by means of a transmitter arranged on the guide door; Receiving the position signal by means of a receiver arranged on the follower door; and generating a follower control signal for opening or closing the follower door depending on the received position signal, so that when the lead door moves, the follower door follows the lead door.
- a control system for opening and/or closing a car door of an elevator car and a shaft door of an elevator system is described.
- the elevator car is arranged in a vertically displaceable manner in an elevator shaft of a building and has a car door opening for entering or leaving the elevator car and a car door for opening or closing the car door opening.
- the shaft door is arranged on a floor of the building at a shaft door opening of the elevator shaft and is arranged for opening or closing the shaft door opening.
- the control system has: a car door control unit for controlling a car door drive for opening or closing the car door, wherein the car door drive is mechanically coupled to the car door; and a shaft door control unit for controlling a shaft door drive for opening or closing the shaft door, wherein the shaft door drive is mechanically coupled to the shaft door.
- the car door or the shaft door is designed as a guide door and the other of the two doors is designed as a follower door and accordingly the car door control unit or the shaft door control unit is designed as a guide control unit and the other of the two control units is designed as a follower control unit.
- the guide control unit is designed to generate a guide control signal for opening or closing the guide door depending on a predetermined guide door travel curve after the elevator car has arrived at the floor.
- the follower control unit is designed to generate a follower control signal for the follower door drive for opening or closing the follower door depending on a position signal that is generated by a transmitter that is to be arranged on the guide door and is received by a receiver that is communicatively coupled to the follower control unit and that is to be arranged on the follower door, such that when the guide door moves, the follower door follows the guide door.
- an elevator system has: a control system according to the second aspect of the invention, the elevator car, which is arranged vertically displaceably in the elevator shaft of the building, which has the car door opening for entering or leaving the elevator car and which has the car door for opening or closing the car door opening; the car door drive, which is mechanically coupled to the car door; the shaft door, which is arranged on a floor of the building at a shaft door opening of the elevator shaft and which is designed to open or close the shaft door opening; the shaft door drive, which is mechanically coupled to the shaft door; wherein the car door control unit is communicatively coupled to the car door drive; and the shaft door control unit is communicatively coupled to the shaft door drive, wherein the car door or the shaft door is designed as a guide door, the corresponding control unit as a guide control unit and the corresponding door drive as a guide door drive and wherein the other of the two doors is designed as a follower door, the other of the two control units as a follower door, the other of the two control units as a
- one of the two doors as a leading door which dictates the movement of the doors
- the other of the two doors as a following door which follows the movement of the leading door
- using one of the two doors as a leading door and the other of the two doors as a following door can make it easy to ensure that one of the two doors is not open when the other of the two doors is closed, which can contribute to a particularly high level of safety for the person when using the elevator system.
- the shaft door control unit is the leading control unit
- the shaft door drive is the leading door drive
- the predetermined travel curve is a shaft door travel curve
- the car door is the follower door
- the car door control unit is the follower control unit
- the car door drive is the follower door drive
- the predetermined travel curve is a car door travel curve
- the shaft door is the follower door
- the shaft door control unit is the follower control unit and the shaft door drive is the follower door drive.
- the transmitter can be, for example, a magnet or an excitation coil, a radiation source, for example a light source, or a sound source, for example an ultrasound source, which actively generates the position signal in the form of a magnetic field, radiation, in particular light, or sound, in particular ultrasound.
- the receiver can be a Hall sensor or an induction coil, a radiation sensor, in particular a light sensor, or a microphone, which receives the corresponding position signal.
- the transmitter can be merely a passive transmitter, for example an optical marking, in which case the receiver can be designed as a camera, in particular as a line camera, by means of which a position of the optical marking can be detected.
- the specified travel curve can be determined in advance, for example empirically and/or by a manufacturer of the elevator system.
- the specified guide door travel curve can, for example, be stored on a memory unit of the guide control unit.
- the transmitter is arranged on the leading door and the receiver is arranged on the following door in such a way that a signal strength of the received position signal is maximum when a displacement of the following door relative to the leading door in the direction of movement of the following door is minimal.
- the direction of movement of the follower door is parallel to the direction of movement of the lead door.
- both directions of movement are aligned horizontally.
- the directions of movement refer, for example, to the closing directions of the two doors or to the opening directions of the two doors, with the closing directions being parallel to one another and parallel to the opening directions, with the opening directions being parallel to one another, and with the closing directions being opposite to the corresponding opening directions.
- the displacement refers to the relative positions of the two doors to each other.
- the displacement refers, for example, to a distance between a movable vertical outer edge of the leading door and a movable vertical outer edge of the following door, whereby the distance is measured parallel to the direction of movement.
- the transmitter can be arranged horizontally at the same distance from the corresponding outer edge of the leading door as the receiver is arranged horizontally from the corresponding outer edge of the following door.
- the distance from the transmitter to the receiver is minimal when the displacement is minimal, and when the displacement is minimal, the signal strength of the position signal is maximum.
- the displacement is so minimal that it cannot be detected by a person using the elevator system without aids and/or that the opening and closing of the two doors is perceived by the person as synchronous and/or simultaneous.
- the follower control unit is designed to generate the follower control signal such that the displacement of the follower door relative to the guide door in the direction of movement of the two doors is minimized.
- the follower control unit can have a control that influences the follower control signal so that the displacement is minimal.
- the displacement is so minimal that it cannot be recognized by a person using the elevator system without aids and/or that the opening and closing of the two doors is perceived by the person as synchronous and/or simultaneous.
- the follower control unit is designed to generate the follower control signal such that the signal strength of the received position signal is maximized.
- the follower control signal can be generated such that the signal strength of the received position signal is maximum at any time during the opening and/or closing of the two doors.
- the follower control unit can have a control that influences the follower control signal such that the signal strength of the received position signal is maximum.
- the follower control unit is designed to generate the follower control signal depending on a predetermined follower door travel curve.
- the follower control signal can thus be generated depending on the received position signal and depending on the predetermined follower door travel curve.
- the predetermined follower door travel curve can be corrected depending on the position signal and the follower control signal can be generated based on the corrected follower door travel curve.
- the predetermined follower door travel curve can be a type of Reference curve which roughly specifies the movement of the follower door and which is corrected using the position signal.
- the specified follower door travel curve can correspond to the specified guide door travel curve. Alternatively, the specified follower door travel curve can deviate from the specified guide door travel curve.
- a separate travel curve can be provided for each floor, in particular for each of the shaft doors, in particular corresponding guide door travel curves or follower door travel curves, since the shaft doors exhibit slightly different behavior due to usual tolerances when the corresponding shaft door drives are controlled in the same way, for example due to different friction values of the corresponding guide rails.
- a separate guide door travel curve can be specified for each floor, in particular for each shaft door.
- a separate follower door travel curve can be specified for each floor, in particular for each shaft door.
- Fig. 1 shows a side sectional view of an elevator system according to an embodiment of the present invention.
- Fig. 1 shows a side sectional view of an elevator system 1 according to an embodiment of the present invention.
- the elevator system 1 is arranged in a building that has an elevator shaft 3.
- the elevator system 1 is designed to transport one or more people and/or one or more loads within the building from one floor 10 to another floor 10 of the building.
- the elevator system 1 has an elevator car 5.
- the elevator car 5 is arranged in the elevator shaft 3 so that it can be moved vertically.
- the elevator car 5 is mechanically coupled to a counterweight 2 of the elevator system 1 via at least one support means 4, for example a cable.
- the support means 4 can be guided between the elevator car 5 and the counterweight 2 via one or more deflection rollers 12.
- the support means 4 and thus the elevator car 5 and the counterweight 2 can be moved by means of a drive machine (not shown) of the elevator system 1, whereby the vertical displacement of the elevator car 5 can be realized.
- the drive machine can be controlled by means of an elevator control unit 16.
- the elevator control unit 16 is arranged on the elevator car 5.
- the elevator control unit 16 can also be arranged at a different location in the elevator system 1, for example in the area of a ceiling of the elevator shaft 3.
- the elevator car 5 serves to accommodate the person(s) to be transported and/or
- the elevator car 5 has a car door opening 6 through which the
- the elevator car 5 has a car door 7 for opening or closing the car door opening 6.
- the elevator system 1 has a car door drive 8 which is mechanically coupled to the car door 7 in such a way that the car door 7 can be moved by means of the car door drive 8, in particular can be opened or closed. Corresponding mechanical couplings are known from the prior art.
- the elevator system 1 has a car door control unit 14 which is communicatively coupled to the car door drive 8 in such a way that the car door drive 8 can be controlled by means of the car door control unit 14.
- the car door control unit 14 is communicatively coupled to the car door drive 8 in such a way that the car door control unit 14 can transmit control signals to the car door drive 8, for example wirelessly or via cable.
- the elevator shaft 3 has a shaft door opening 9 on each floor 10 in order to allow access to the respective floors 10 of the building from the elevator car.
- a shaft door 11 is arranged at each of these shaft door openings 9. If the elevator car 5 is located on one of the floors 10, the corresponding shaft door 9 is arranged opposite the car door 7. When the car door 7 and the shaft door 11 are open, the elevator car 5 can then be entered or exited from the corresponding floor 10.
- the elevator car 5 can have two car doors 7 (see Figure 2), with two shaft doors 11, each assigned to one of the car doors 7, being arranged on each floor.
- the fact that the shaft doors 11 are assigned to the car doors 7 means, for example, that the shaft doors 11 should be moved synchronously with the car doors 5 that are assigned to them. In other words, the doors that are assigned to each other should be moved synchronously.
- the elevator system 1 further comprises a shaft door drive 13 and a shaft door control unit 19.
- the shaft door drive 13 is mechanically coupled to the shaft door 11 in such a way that the shaft door 11 can be moved by means of the shaft door drive 11, in particular can be opened or closed. Mechanical couplings are known from the prior art.
- the shaft door control unit 19 is communicatively coupled to the shaft door drive 13 in such a way that the shaft door drive 13 can be controlled by means of the shaft door control unit 19.
- the shaft door control unit 19 is communicatively coupled to the shaft door drive 13 in such a way that the shaft door control unit 19 can transmit control signals to the shaft door drive 13, for example wirelessly or via cable.
- a control system for opening and/or closing the car door 7 and the shaft door 11 has the car door control unit 14 and the shaft door control unit 19.
- the car door 7 or the shaft door 11 is designed as a guide door
- the corresponding control unit is designed as a guide control unit
- the corresponding door drive is designed as a guide door drive.
- the other of the two doors is designed as a follower door
- the other of the two control units is designed as a follower control unit
- the other of the two door drives is designed as a follower door drive. If the shaft door 11 is the guide door, the shaft door control unit 19 is the guide control unit, the shaft door drive 13 is the guide door drive, the car door 7 is the follower door, the car door control unit 14 is the follower control unit and the car door drive 8 is the follower door drive.
- the car door control unit 14 is the leading control unit
- the car door drive 8 is the leading door drive
- the shaft door 11 is the following door
- the shaft door control unit 19 is the following control unit
- the shaft door drive 13 is the following door drive.
- the elevator system 1 further comprises a transmitter 15 for generating a position signal and a receiver 17 for receiving the position signal.
- the transmitter 15 is arranged on the leading door, in particular the shaft door 11, and faces the follower door, in particular the car door 7.
- the receiver 17 is arranged on the follower door, faces the leading door and is connected to the follower control unit, in particular the car door control unit 14, communicatively coupled.
- the guide control unit, in particular the shaft door control unit 19, is designed to generate a guide control signal for the guide door drive, in particular the shaft door drive 13, for opening or closing the guide door depending on a predetermined guide door travel curve after the elevator car 5 has arrived at one of the floors 10.
- the follower control unit is designed to generate a follower control signal for the follower door drive, in particular the car door drive 8, for opening or closing the follower door depending on the received position signal such that when the guide door moves, the follower door follows the guide door, as explained in more detail below with reference to Figures 2 and 3.
- the transmitter 15 can be arranged on the leading door and the receiver 17 can be arranged on the following door in such a way that a signal strength of the received position signal is maximum when a displacement of the following door relative to the leading door in the direction of movement of the following door is minimal (see Figure 2).
- the following control unit can be designed to generate the following control signal in such a way that the displacement of the following door relative to the leading door in the direction of movement of the two doors is minimized.
- the following control unit can have a control that influences the following control signal in such a way that the displacement is minimal.
- the displacement is so minimal that it cannot be recognized by a person using the elevator system without aids and/or that the opening and closing of the two doors is perceived by the person as synchronous and/or simultaneous.
- the follower control unit is designed to generate the follower control signal such that the signal strength of the received position signal is maximized.
- the follower control signal can be generated such that the signal strength of the received position signal is maximum at any time during the opening and/or closing of the two doors.
- the follower control unit can have a control that influences the follower control signal such that the signal strength of the received position signal is maximum.
- the transmitter 15 can be, for example, a magnet or an excitation coil, a
- Radiation source for example a light source, or a sound source, for example an ultrasound source that actively generates the position signal in the form of a magnetic field, radiation, in particular light, or sound, in particular ultrasound.
- the receiver 17 can be a Hall sensor or an induction coil, a radiation sensor, in particular a calibration sensor, or a microphone that receives the corresponding position signal.
- the transmitter 15 can be merely a passive transmitter, for example an optical marking, in which case the receiver 17 can be designed as a camera, in particular as a line camera, by means of which a position of the optical marking can be detected.
- the specified guide door travel curve can be determined in advance, for example empirically and/or by a manufacturer of the elevator system.
- the specified guide door travel curve can be stored, for example, on a memory unit of the guide control unit. If the shaft door 11 is the guide door, the specified guide door travel curve is a shaft door travel curve. If the car door 7 is the guide door, the specified guide door travel curve is a car door travel curve.
- the follower control unit can be designed to generate the follower control signal depending on a predetermined follower door travel curve, at least roughly.
- the follower control signal can thus be generated depending on the received position signal and depending on the predetermined follower door travel curve.
- the predetermined follower door travel curve can be corrected depending on the position signal and the follower control signal can be generated based on the corrected follower door travel curve.
- the predetermined follower door travel curve can be a type of reference curve that roughly specifies the movement of the follower door and that is corrected based on the position signal.
- the predetermined guide door travel curve can correspond to the follower door travel curve. Alternatively, the predetermined guide door travel curve can deviate from the predetermined follower door travel curve.
- Fig. 2 shows a sectional top view of the car door 7 and the shaft door 11 of the elevator system 1 according to Figure 1, according to an embodiment of the present invention.
- the elevator car 5 has two car doors 7 and the elevator shaft 3 has two shaft doors 11 on each floor 10.
- the car doors 7 and the shaft doors 11 form one of the floors 10, which are located directly next to each other, i.e. on the same side of the car door opening 6 or the Shaft door opening 9, are arranged in a pair each, with the doors of a pair being assigned to one another.
- the features and functions of the car doors 7 and the shaft doors 11 and the corresponding door drives and control units mentioned in this description always refer to a pair of these doors, i.e.
- the elevator car 5 can have only one of the car doors 7 and the elevator shaft 3 can have only one of the shaft doors 11 on each floor 10 (not shown), with the features and functions of the car doors 7 and the shaft doors 11 mentioned in this description being able to be easily transferred to this alternative embodiment.
- the two car doors 7 move towards each other when the car doors 7 are closed and away from each other when the car doors 7 are opened.
- the two shaft doors 11 move towards each other when the shaft doors 11 are closed and away from each other when the shaft doors 11 are opened. If the doors are opened, the end positions of the doors refer to the opening positions of the corresponding doors, i.e. the positions of the doors in which they are intended to be maximally open. If the doors are closed, the end positions of the doors refer to the closing positions of the corresponding doors, i.e. the positions of the doors in which they are intended to be maximally closed.
- the directions of movement relate, for example, to Closing directions 25 of the two doors or opening directions (not shown) of the two doors, wherein the closing directions are parallel to each other and parallel to the opening directions, wherein the opening directions are parallel to each other, and wherein the closing directions are opposite to the corresponding opening directions.
- the displacement between the two doors refers to the relative positions of the two doors to one another.
- the displacement refers, for example, to a distance S of the movable vertical outer edge of the guide door, for example the outer edge 23 of the shaft door 11, to a movable vertical outer edge of the follower door, for example the outer edge 21 of the car door 7.
- the distance S is measured parallel to the direction of movement.
- the transmitter 15 can be arranged in the horizontal direction at the same distance from the corresponding outer edge of the guide door as the receiver 17 is arranged in the horizontal direction from the corresponding outer edge of the follower door. With this arrangement, the distance from the transmitter to the receiver is minimal when the displacement, i.e.
- the distance S is minimal, and when the displacement is minimal, the signal strength of the position signal is maximum.
- the displacement is so minimal that it cannot be detected by a person using the elevator system without aids and/or that the opening and closing of the two doors is perceived by the person as synchronous and/or simultaneous.
- the transmitters 15 and the receivers 17, in particular one of the pairs can be arranged at the same height.
- Fig. 3 shows a flow chart of an embodiment of a method for opening and/or closing the car door 7 and the shaft door 11, according to an embodiment of the present invention.
- the method can be processed by the control system, for example.
- a position signal is generated by means of the transmitter 15, which is arranged on the guide door.
- step S6 the position signal is received by the receiver 17, which is arranged on the follower door.
- the follower control signal for opening or closing the follower door is generated depending on the received position signal, so that when the leading door moves, the follower door follows the leading door.
- the follower control signal can be generated in such a way that the displacement of the follower door relative to the leading door in the direction of movement of the two doors, i.e. the distance S, is minimized.
- the follower control unit can have a control that influences the follower control signal in such a way that the signal strength of the received position signal is maximum and that the displacement is therefore minimal.
- the follower control signal can be generated in such a way that the signal strength of the received position signal is maximum at any time during the opening and/or closing of the two doors.
- the displacement is so minimal that it cannot be detected by a person using the elevator system without aids and/or that the opening and closing of the two doors is perceived by the person as synchronous and/or simultaneous.
- the follower control signal can be generated depending on the specified follower door travel curve.
- the follower control signal can thus be generated depending on the received position signal and depending on the specified follower door travel curve.
- the specified follower door travel curve can be adjusted depending on the position signal and the follower control signal can be generated based on the adjusted follower door travel curve.
- the specified follower door travel curve can be dynamically adjusted depending on the position signal and the follower control signal can be generated based on the dynamically adjusted follower door travel curve.
Landscapes
- Elevator Door Apparatuses (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202480043961.2A CN121419937A (zh) | 2023-06-30 | 2024-06-20 | 用于打开和/或关闭电梯轿厢的轿厢门以及电梯系统的井道门的方法和控制系统 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP23182552.2 | 2023-06-30 | ||
| EP23182552 | 2023-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2025002981A1 true WO2025002981A1 (de) | 2025-01-02 |
Family
ID=87060315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2024/067264 Ceased WO2025002981A1 (de) | 2023-06-30 | 2024-06-20 | Verfahren und steuersystem zum öffnen und/oder schliessen einer kabinentür einer aufzugkabine und einer schachttür der aufzugsanlage |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN121419937A (de) |
| WO (1) | WO2025002981A1 (de) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1418149A1 (de) * | 2002-11-08 | 2004-05-12 | Daniel Schürmann | Aufzugstürensicherheitseinrichtung |
| EP3398899A1 (de) * | 2017-05-05 | 2018-11-07 | Franz Xaver Meiller Fahrzeug- und Maschinenfabrik - GmbH & Co KG | Aufzuganlage mit bidirektionaler kommunikation zwischen kabine und haltestation |
| WO2022228959A1 (de) | 2021-04-30 | 2022-11-03 | Inventio Ag | Aufzugsanlage |
-
2024
- 2024-06-20 WO PCT/EP2024/067264 patent/WO2025002981A1/de not_active Ceased
- 2024-06-20 CN CN202480043961.2A patent/CN121419937A/zh active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1418149A1 (de) * | 2002-11-08 | 2004-05-12 | Daniel Schürmann | Aufzugstürensicherheitseinrichtung |
| EP3398899A1 (de) * | 2017-05-05 | 2018-11-07 | Franz Xaver Meiller Fahrzeug- und Maschinenfabrik - GmbH & Co KG | Aufzuganlage mit bidirektionaler kommunikation zwischen kabine und haltestation |
| WO2022228959A1 (de) | 2021-04-30 | 2022-11-03 | Inventio Ag | Aufzugsanlage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN121419937A (zh) | 2026-01-27 |
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