EP4081474A1 - Système de levage à entraînement par friction - Google Patents
Système de levage à entraînement par frictionInfo
- Publication number
- EP4081474A1 EP4081474A1 EP20829937.0A EP20829937A EP4081474A1 EP 4081474 A1 EP4081474 A1 EP 4081474A1 EP 20829937 A EP20829937 A EP 20829937A EP 4081474 A1 EP4081474 A1 EP 4081474A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- car
- shaft
- friction drive
- drive units
- unit
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000008859 change Effects 0.000 claims description 13
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/003—Kinds or types of lifts in, or associated with, buildings or other structures for lateral transfer of car or frame, e.g. between vertical hoistways or to/from a parking position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/02—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable
Definitions
- the invention relates to an elevator system with a friction drive.
- the elevator system can include one or more cars.
- the invention is particularly suitable for an elevator system with a plurality of cars that can be moved in at least one shaft.
- US Pat. No. 5,921,351 an elevator system is known in which a car is moved along a predetermined path by a drive mechanism.
- This drive mechanism has a plurality of driven belts arranged one behind the other. The drive force is transmitted from the belt to the car via a frictional connection between a friction surface of a belt and an associated surface of the car.
- the object of the invention is to specify an elevator system and a method which enable an improved mode of operation.
- the elevator system can in particular serve to transport people in one or more cabins.
- the task here may be to enable people to be transported in at least one cabin in an improved manner.
- an elevator system with at least one shaft and at least one car, which is arranged in the shaft can be specified, the shaft being divided into a plurality of shaft sections, a plurality of friction drive units being provided
- the friction drive units are arranged on at least one shaft wall of the shaft, the friction drive units each having at least two friction wheels, the car being movable during operation in each shaft section by at least one of the friction drive units and the at least one friction drive unit being adjustable in at least one shaft section is drivable, so that during operation the car can be moved at least in this shaft section at a substantially continuously adjustable speed.
- this is achieved in that the speed of each friction drive unit can be set independently of the other friction drive units.
- a method for driving cars of a proposed elevator system can be specified, the speed of at least one car being continuously adjusted by means of friction drive units as a function of at least one operating state of at least one other car.
- a method for transporting people with a proposed elevator system can be specified, wherein at least two cars are moved in at least two shafts by means of friction drive units arranged on shaft walls and wherein the cars move through the shafts at at least substantially continuously adjustable speeds during operation become.
- At least one of the friction drive units has an endless belt, that the friction wheels of this friction drive unit are enclosed by the endless belt and that at least one of the friction wheels can be driven by a drive unit.
- friction wheels are to be understood as wheels for transmitting a traction force to the elevator car or to a belt.
- the traction force can be transmitted directly from the friction wheel to a part of the cabin, that is to say the cabin itself, or to an additional part specially designed for power transmission, which is attached to the cabin.
- a friction wheel is also to be understood as meaning wheels which do not transmit the tractive force directly to the cabin but, for example, to an endless belt, the belt transfers the traction force through friction to the cabin or a part attached to the cabin for this purpose.
- the car has at least one traction plate to which, during operation, a drive force for moving the car in the shaft is temporarily transmitted by at least one of the friction drive units.
- This enables an advantageous power transmission to the cabin.
- another part of the cabin can also take on the function of a traction plate on the cabin. A traction plate can then be omitted if necessary.
- At least one of the friction drive units comprises further wheels which are tensioned by a tensioning mechanism, in particular at least one spring, in such a way that they exert a pressure force which is directed towards part of the cabin, in particular towards a traction plate of the cabin to exercise.
- the part to which the pressure force points is preferably the traction plate.
- At least one additional shaft is provided, that at least one changeover point is implemented between the shaft and the further shaft, that at least one trolley unit is provided which can be displaced between the shaft and the further shaft during operation at the changeover point, and that the cabin can be moved during operation at the changeover point between the shaft and the further shaft by means of the car unit.
- the car unit in particular enables the cabin to be advantageously moved from one shaft to another.
- the car can be moved during operation by at least one friction drive unit which is arranged on a carriage unit provided at the change point. In this way, the drive principle can be transferred from the rest of the shaft to the carriage unit in an advantageous manner.
- the friction drive unit or the friction drive units of each shaft section is or are controllably drivable, so that during operation the car at least substantially entire shaft can be moved at essentially infinitely variable speed. In this way, in particular, a significant improvement in driving comfort for people can be achieved. It is advantageous that a plurality of friction drive units are used in each shaft section to drive the car, the friction drive units being arranged in pairs on a shaft wall of the shaft or on one side of the car.
- friction drive units are used to drive the car in each shaft section, with at least two friction drive units, in particular two pairs of friction drive units, being arranged on two opposite sides of the shaft or on two opposite sides of the car. This enables an improved drive of the car, which can thereby be compensated in particular with regard to a torque exerted on the car.
- the friction wheel drive units which form a pair, are arranged essentially directly next to one another on a shaft wall in such a way that the running surfaces of these friction drive units are directed towards one another, so that during operation the car can be moved between the two friction drive units by retracting the traction plate is.
- the two friction drive units can then preferably act on the traction plate with opposing pressure forces.
- the friction drive units reduce the speed of a car traveling to a stop at which another car is already stopping when it is determined by a computing unit that the moving car is not reduced Speed reaches the stop of the holding car within a holding time at the stop determined by the arithmetic unit for the holding car, and that the holding time for the holding car at the stop is determined by the arithmetic unit on the basis of the number of passengers.
- This provides an advantageous way of controlling the speed of the car.
- other possibilities for reducing the speed are also conceivable, for example using a distance sensor.
- a controller can therefore also use the measured distance between two cabins as an input variable and, if necessary, reduce the speed of one of these cabins.
- cabins are converted from the at least one shaft to at least one second shaft at a changeover point, that the speed of a cabin that drives from one of the shafts to a stop of another shaft at which another cabin is already due to the friction drive units holds, is already reduced in the shaft in front of the change point in the other shaft, if it is determined by a computing unit that the moving car with non-reduced speed and taking into account a change time at the change point, the stop of the holding car within one of the computing unit for the stopping car will reach a certain stopping time at the stop.
- driving comfort is improved in particular in an improved manner.
- the drive device reduces the speed of a car, the speed of which is reduced in relation to at least one operating state of at least one of the other cars, to such an extent that the car is prevented from stopping before its next scheduled stop at a stop. Avoiding an additional stop for a car is a preferred specification for improving driving comfort.
- the cars are moved with at least one standard speed and at least one reduced speed by the friction drive units.
- certain speeds can be specified for operation in order to simplify the control and / or to specify preferred speeds.
- the elevator system comprises at least one change point, which connects the two shafts horizontally, and at least one car unit, wherein the car at the changing point with the car unit between the shafts is displaceable so that the car is moved relative to the car unit by at least one friction drive unit integrated in the car unit, which is designed according to the friction drive units arranged in the shaft, i.e.
- the car can, in an advantageous embodiment, drive into the car unit or, if necessary (if the car unit is not at one of the shaft ends and no horizontal displacement of the car is to take place), through the car unit, namely as if it were this part of the shaft. It is advantageous that several of the above and below described in the shaft
- Car units can be provided. One car unit each can be provided at the upper and lower end of the shaft. Car units can be provided on further floors, which can move the car into a partial shaft, in particular into a waiting part shaft or a partial exit shaft. In one embodiment, two car units can be provided at the same shaft height, that is to say in the same shaft section. In such an embodiment, a partial shaft is provided on both sides of the main shaft. One of the car units is always in the shaft, while the other car unit is parked in one of the two sub-shafts. If a car has to be removed from the shaft, for example due to a defect, the car unit which is located in the shaft can be moved into the free partial shaft after the car has entered and braked, and there be parked. The second car unit can then be moved out of the other sub-shaft into the main shaft, where it can serve as part of the drive for moving additional cabins.
- FIG. 1 shows a schematic, partial representation of an elevator system with a drive device according to an exemplary embodiment of the invention.
- Fig. 2 shows a schematic, excerpted representation of the elevator system of the embodiment, with excerpts showing an elevator shaft of a building in which two cars are currently arranged.
- FIG. 3 shows a schematic, excerpted representation of the elevator system of the exemplary embodiment from the viewing direction designated III in FIG. 2, three elevator shafts of the building in which the cars are arranged are shown.
- FIG. 1 shows a schematic, partial representation of an elevator system 1 with a drive device 2 according to an exemplary embodiment of the invention.
- the elevator system 1 also has cabins 3A to 3D (FIG. 3), of which in FIG.
- the drive device 2 has a controller 4. Furthermore, a computing unit 5 is provided, which can be part of the controller 4.
- the drive device 2 has a plurality of friction drive units 6A to 6S (FIGS. 2, 3), of which the friction drive units 6A, 6B are shown by way of example in FIG. 1.
- the friction drive units 6A to 6S and further friction drive units not shown in the figures are preferably designed in a corresponding manner.
- the friction drive unit 6A has friction wheels 7, 8 around which an endless belt 9 is guided.
- both the friction wheel 7 and the friction wheel 8 are each driven by a drive unit 10, 11.
- the drive units 10, 11 can have, for example, electric motors and, if necessary, gears.
- the friction drive unit 6B has friction wheels 7 ', 8' around which an endless belt 9 'is guided, the friction wheels 7', 8 'each being driven by a drive unit 10', 1G.
- the drive units 10, 11, 10 ', 1G and other drive units are activated by the controller 4.
- the controller 4 controls the elevator system 1 as a function of a large number of items of information. Such information relates to the call from a car 3A to 3D to any desired stop, which is illustrated here by way of example by a stop 12 on a floor 13 of a building 14 to simplify the description. Furthermore, information can be provided which is used to determine a holding time of the car 3A at the stop 12.
- This can in particular relate to the number of passengers who are located in the car 3A or on the floor 13 at a floor door 15.
- video information that is recorded by a video camera 16 in the cabin 3A and a video camera 17 on the floor 13 can be evaluated by the computing unit 5.
- the arithmetic unit 5 can calculate the holding time for the holding car 3A at the stop 12 on the basis of
- control 4 can also have the measurement of the distance between two cabins 3A to 3D as an input variable.
- FIG. 2 shows a schematic representation, in part, of the elevator system 1 of the exemplary embodiment, a shaft 20A being shown in part.
- the shaft 20A can here also be implemented as part of a shaft arrangement 20 (FIG. 3) which is provided in the building 14.
- the cabins 3A, 3B are currently located in the illustrated section of the shaft 20A.
- the cabin 3A has a cabin door 21.
- traction plates 22, 23 are provided on the car 3A, which in the currently shown position of the car 3A interact with the endless belts 9, 9 'of the friction drive units 6A, 6B and with endless belts of further friction units 6J (Fig. 3) . If the landing door 15 and the car door 21 are closed again after passengers have got on and off, the controls
- Control 4 the drive units 10, 11, 10 ', 1G (Fig. 1) so that the driven Friction wheels 7, 8, 7 ', 8' move the endless belts 9, 9 'in a predetermined direction of travel 24, which in this exemplary embodiment is currently pointing upwards.
- the car 3A is thereby moved through a driving space 25A, which in this exemplary embodiment extends upwards from a floor 26 in the direction of travel 24 within the shaft 20A.
- a cabin guide rail 27 is also arranged in a stationary manner, on which the cabin 3A is guided via guide shoes 28, 29.
- the stop 13 can be determined by a floor door sill 30.
- the cabin 3B is designed in accordance with the cabin 3A. In particular, guide shoes 28 ', 29' are provided.
- the car 3B is located on a relocating device 35, which in this exemplary embodiment is designed as a transverse displacement device 35.
- the relocating device 35 has a cabin guide rail extension piece 36 which is arranged in a stationary manner on the relocating device 35.
- the cabin guide rail extension piece 36 supplements the cabin guide rail 27. If the car 3B is operated by the friction drive units arranged on the relocating device 35 and then by the friction drive units 6A, 6B in the direction of travel 24 is moved through the travel space 25A, then the guide shoes 28 ′, 29 ′ are transferred from the cabin guide rail extension piece 36 to the cabin guide rail 27.
- the relocating device 35 is guided horizontally on at least one guide rail 37.
- the traction plates 22, 23 can each also be configured in several parts.
- the elevator system can also be used without
- Cabin guide rails be formed.
- the cab is guided exclusively by the friction wheel drives.
- FIG. 3 shows a schematic, partial representation of the elevator system 1 of the exemplary embodiment from the viewing direction designated III in FIG. 2, three shafts 20A to 20C of the building 14 in which the cars 3A to 3D are shown are arranged.
- the shaft 20A is divided into shaft sections 31A to 3 ID.
- the shafts 20B, 20C are divided into the same shaft sections 31A to 31D corresponding to the shaft 20A.
- the shafts can also be subdivided differently.
- the traction plates 22, 23 are arranged on a first side 40 and a second side 41 of the cab 3A, the sides 40, 41 facing away from one another.
- the traction plate 22 interacts with a pair of friction drive units 6A, 6B of the drive device 2, which are located on the first side 40 of the cab 3A and on a first side 42 of the driving space 25A.
- a concealed and therefore not shown further friction drive unit is provided, so that in the position of the car 3 A shown, the traction plate 23 on the second side 41 of the car 3A or on a second side 43 of the driving area 25A cooperates with a pair of friction drive units, in particular the friction drive unit 61.
- a corresponding configuration also results from the relocating device 35, which is located on the floor 26 of the building 14, and a relocating device 45, which is located in the area of a ceiling 46 of the shafts 20A to 20C of the shaft arrangement 20 or of the building 14.
- two pairs of friction drive units 6A to 6S always work together, with preferably all friction wheels, in particular friction wheels 7, 8, 7 ', 8' being driven.
- the conversion device 45 is designed in accordance with the conversion device 35.
- a guide rail 47 which is arranged in the region of the ceiling 46 and, in this exemplary embodiment, is horizontally aligned, is provided for the relocating device 45.
- Drives 48, 49 enable the transfer devices 35, 45 to move horizontally, so that the individual cabins 3A to 3D can be moved between the individual driving spaces 25A to 25C.
- certain relocation directions 50A to 50F can be specified, which may also vary over time.
- the directions of travel 24, 51, 52 are specified for the movement of the cabs 3A to 3D through the travel spaces 25A to 25C. Moving the cabs against the directions of travel 24, 51, 52 is made possible by turning the rotation of the friction wheel drives. It is also possible that these vary over time.
- the directions of travel 24, 51, 52 can for example, can be adjusted according to the number of passengers during rush hour. In a modified embodiment, it is also conceivable that at least one further relocating device is implemented on any floor.
- the drive device 2 can be designed such that, for example, the
- the speed of the car 3B traveling to the stop 12 at which the car 3A is already stopping is reduced when the arithmetic unit 5 determines that the car 3B traveling at non-reduced speed reaches the stop 12 of the stopping car 3A within one of the arithmetic units 5 for the stopping car 3A determined stopping time at the stop 12 reached.
- the car 3B can, for example, have driven through the driving area 25B some time before the position shown in the direction of travel 51, the next stop being the stop 12 or one behind the stop 12 according to the directions 24, 51, 52 and the transfer directions 50A to 50F go to another stop.
- the computing unit 5 can evaluate video information from the video camera 16, 17 in order to determine the holding time for the holding car 3A at the stop 12 on the basis of the number of passengers. In order to improve the driving behavior for the passengers to be transported, it is advantageous if an additional stopping and starting of the car 3B can be avoided.
- the computing unit 5 determines that the car 3B already reaches the car 3A, which is still stopping at the stop 12, within the certain stopping time, then by reducing the speed of the car 3B already in the shaft 20B, an additional stop of the car 3B can possibly be avoided. Accordingly, an additional stop in the shaft 20A can be avoided if necessary. This applies in particular if, in contrast to the schematic illustration, there are further floors between the stop 12 or floor 13 and the relocating device 35.
- the drive device 2 is preferably designed in such a way that an at least substantially variable reduction in the speed of a car 3A to 3D is possible. Then the speed of the car in question, for example the Cabin 3B, can be reduced so that an additional stop before the next scheduled stop is avoided.
- all friction drive units 6A to 6S are designed to be adjustable, so that an individual and essentially stepless setting of the speed of each of the cabs 3A to 3D is possible.
- only a part of the friction drive units 6A to 6S can also be designed to be adjustable, so that a stepless setting, in particular stepless reduction, of the speed is only possible on these. In particular, this can result in lower costs for the drive units 10, 11, 10 ', 1 G and a lower control effort for the controller 4. If necessary, one or more reduced speeds can also be implemented on at least some of the friction drive units 6A to 6S.
- the drive device 2 of the elevator system 1 is thus designed such that the speed of at least one of the cars 3A to 3D can be reduced in relation to at least one operating state of at least one of the other cars 3A to 3D.
- Such an operating state results in particular from holding at least one car 3A to 3D at a stop, as is described using the example of car 3A and stop 12.
- the friction drive units 6A to 6S each have further wheels in this exemplary embodiment.
- a wheel 55 is identified by way of example on the Ilten friction drive unit 6A shown in FIG.
- the wheel 55 is pressed against the traction plate 22 by a pretensioned spring 56.
- a force (pressing or tensioning force) 70 therefore points to the traction plate 22.
- the force 70 points from a shaft wall 57 to the traction plate 22.
- the traction plate 22 and the friction drive unit 6A can also be arranged such that shows the force 70 from one of the shaft walls 57 to 59 (FIGS. 2 and 3) on the car 3A.
- tensioning mechanisms 56 ' can be implemented, of which the tensioning mechanism 56', which uses the spring 56, among other things, is characterized as an example.
- the friction drive units 6A, 6B, 6E, 6F, 61, 6J, 6F to 6S are arranged on shaft walls 58 to 63 of the shafts 20A to 20C.
- the friction drive units 6C, 6D, 6G, 6H, 6K and further friction drive units (not shown) are arranged on carriage units 38, 44 of the transfer devices 35, 45.
- a force (drive force) 71 can then be transmitted to the car 3A from the friction drive units 6A, 6B, 61 and a further friction drive unit (not shown).
- the described configuration and mode of operation is therefore in a corresponding manner on the other friction drive units, in particular the friction drive units 6C to 6H, 6J to 6S identified in the figures, when the car 3A moves through the shafts 20A to 20C and also for the other cars 3B to 3B 3D realized.
- the relocating devices 35, 45 have the carriage units 38, 44 on which the drives 48, 49 are arranged.
- the car units 38, 44 can thereby be moved through horizontal travel spaces 65, 66 along the guide rails 37, 47.
- the horizontal driving space 65 results, for example, at a changeover point 53 corresponding to the transfer directions 5 OE, 50F between the shafts 20A, 20B. If, for example, the carriage unit 38 is arranged in the shaft section 31A of the shaft 20A, then, for example, the car 3B with the friction drive units 6C, 6D, 6H (mounted in the carriage unit 38, see FIG. 2) and the friction drive units 6A, 6B, 61 ( mounted in the shaft) can be moved out of the carriage unit 38.
- Friction drive units 6C, 6D, 6H relative to the carriage unit 38 is fixed here, that is to say always unchanged.
- a changeover point 54 corresponding to the transfer directions 50A, 50B can be implemented between the shafts 20A, 20B.
- a relocating device is provided in a shaft section, below and above which further shaft sections are located, then a suitably designed car unit can be provided which enables a car to be driven into the car unit both from below and from above.
- Friction drive units of the carriage unit enable one Cabin then not only change the shaft at this change point, but also drive through the change point in the same shaft.
- the drive device 2 can also reduce the speed 72 of a car 3A to 3D on the basis of sensor data from a distance sensor 73, which measures a distance 74 to a car 3A traveling ahead, and a predetermined minimum distance. In this case, slowing down can take place if the predetermined minimum distance is not reached.
- Appropriate sensors can also be used to determine the number of passengers.
- the speed 72 can be detected via a suitable sensor, for example the speed 72 of the car 3A can be measured relative to the car guide rail 27.
- the speed 72 can, for example, also be determined from a rotational speed of at least one of the friction wheels 7, 7 ', 8, 8'.
- the invention is not restricted to the embodiments described.
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Elevator Control (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19219355 | 2019-12-23 | ||
PCT/EP2020/087225 WO2021130134A1 (fr) | 2019-12-23 | 2020-12-18 | Système de levage à entraînement par friction |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4081474A1 true EP4081474A1 (fr) | 2022-11-02 |
Family
ID=69005585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20829937.0A Pending EP4081474A1 (fr) | 2019-12-23 | 2020-12-18 | Système de levage à entraînement par friction |
Country Status (4)
Country | Link |
---|---|
US (1) | US20230025567A1 (fr) |
EP (1) | EP4081474A1 (fr) |
CN (1) | CN114829284A (fr) |
WO (1) | WO2021130134A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2020403849B2 (en) * | 2019-12-18 | 2024-06-06 | Inventio Ag | Method for erecting a lift installation |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5921351A (en) | 1997-04-29 | 1999-07-13 | Otis Elevator Company | Modular drive mechanism for a passenger conveyor |
TWI343357B (en) * | 2004-07-22 | 2011-06-11 | Inventio Ag | Elevator installation with individually movable elevator cars and method for operating such an elevator installation |
EP1693331A1 (fr) * | 2005-02-17 | 2006-08-23 | Inventio Ag | Ascenseur muni de plusieurs gaines et avec cabines pouvant être couplées et découplées à l'entraînement selectionné. |
EP2070860A1 (fr) * | 2007-12-11 | 2009-06-17 | Inventio Ag | Système d'ascenseur doté de cabines d'ascenseur mobiles verticalement et horizontalement |
EP2221269A1 (fr) * | 2009-02-20 | 2010-08-25 | Inventio AG | Installation d'ascenseur dotée d'un véhicule à plusieurs toits |
DE102014220966A1 (de) * | 2014-10-16 | 2016-04-21 | Thyssenkrupp Elevator Ag | Verfahren zum Betreiben einer Transportanlage sowie entsprechende Transportanlage |
US9758347B2 (en) | 2014-12-02 | 2017-09-12 | ThyssenKrupp Elevator AG; ThyssenKrupp AG | Arrangement and method to move at least two elevator cars independently in at least one hoistway |
WO2017093595A1 (fr) * | 2015-11-30 | 2017-06-08 | Kone Corporation | Système d'ascenseur réglable à cabines multiples |
-
2020
- 2020-12-18 CN CN202080089158.4A patent/CN114829284A/zh active Pending
- 2020-12-18 EP EP20829937.0A patent/EP4081474A1/fr active Pending
- 2020-12-18 WO PCT/EP2020/087225 patent/WO2021130134A1/fr unknown
- 2020-12-18 US US17/757,840 patent/US20230025567A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
CN114829284A (zh) | 2022-07-29 |
WO2021130134A1 (fr) | 2021-07-01 |
US20230025567A1 (en) | 2023-01-26 |
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