EP4493502A1 - Türdichtung für eine aufzugskabine - Google Patents
Türdichtung für eine aufzugskabineInfo
- Publication number
- EP4493502A1 EP4493502A1 EP23710265.2A EP23710265A EP4493502A1 EP 4493502 A1 EP4493502 A1 EP 4493502A1 EP 23710265 A EP23710265 A EP 23710265A EP 4493502 A1 EP4493502 A1 EP 4493502A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- door
- hose
- seal
- door seal
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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
- B66B13/30—Constructional features of doors or gates
- B66B13/308—Details of seals and joints
Definitions
- the present invention relates to a door seal for an elevator car.
- the invention further relates to a method for controlling an elevator system, a control unit, a computer program and a computer-readable medium for carrying out the method, and an elevator system.
- An elevator car for example for transporting people or goods in buildings, usually comprises a car wall with a door opening and a door for closing the door opening, the door being separated from the car wall by a horizontal door gap when it closes the door opening.
- this door gap can be bridged using a height-adjustable door seal. The transverse forces that the door seal applies to the door when it is active should not be too great.
- US 5,085,293 describes an inflatable door seal which, when inflated, seals a gap between a wall of an elevator shaft and a wall of an elevator car.
- WO 2019 171 412 A1 and JP 2005 029 332 A also show inflatable door seals with a chamber. A lot of pressure may be necessary to inflate the seals safely. The high pressure can lead to large lateral forces on the door.
- a first aspect of the invention relates to a door seal for an elevator car, wherein closed, separated from the cabin wall by a door gap that needs to be sealed.
- the door seal comprises at least a first tube and a second tube made of an elastically deformable sealing material.
- the door seal can be mounted on the cabin wall and/or the door in such a way that, when the door closes the door opening, the first hose and the second hose lie opposite one another within the door gap in a bridging direction in which the door seal is intended to bridge the door gap and at least partially around the door opening.
- the first hose has a pressure connection for applying a fluid pressure to the first hose and can be deformed by changing the fluid pressure between an initial shape and a final shape that is enlarged in the bridging direction compared to the initial shape.
- the second hose has at least one pressure equalization opening, which is designed to enable pressure equalization between an interior and an environment of the second hose when the second hose is compressed.
- the door seal makes it possible to limit the transverse forces acting on the door in the active state of the door seal in such a way that, on the one hand, the door gap is sufficiently sealed and, on the other hand, excessive stress on the door mechanism is avoided. This means that premature wear of the door mechanism as a result of repeated excessive transverse loading can be prevented. Thanks to the reduced transverse load, the door mechanism could also be manufactured less complex and therefore cheaper from the outset.
- the door can have different (horizontal) distances from the cabin wall in different sections of the door gap. This can be the case with a telescopic sliding door, whose movable door leaves are usually offset horizontally from one another.
- the horizontal distances of the door leaves may vary due to inaccuracies in manufacturing and/or assembly.
- the contact pressure with which the door seal is pressed against the door or cabin wall is usually set to a value at which the door seal just closes the door gap in the area of its greatest width (e.g. 6 mm), if necessary, plus a certain reserve in the event that the door gap has different widths in different areas and the door seal should simultaneously bridge the door gap in the area of its smallest width (e.g. 3 mm) and in the area of its greatest width. Due to the Contact pressure, particularly in the area of the smallest width of the door gap, causes high transverse forces to act on the door or cabin wall.
- the approach presented here offers the advantage that the transverse load on the door or cabin wall is greatly reduced in the area of the smallest width of the door gap, in that the transverse forces are determined by the second hose, which can be compressed with comparatively little force. Nevertheless, the door gap can be sufficiently sealed in the area of its greatest width.
- a second aspect of the invention relates to a method for controlling an elevator system, the elevator system comprising an elevator shaft and an elevator car movable in the elevator shaft, the elevator car comprising a car wall with a door opening, a door for closing the door opening and the door seal described above and below, wherein the door, when it closes the door opening, is separated from the cabin wall by a door gap to be sealed and wherein the door seal is mounted on the cabin wall and/or the door in such a way that the first hose and the second hose when the door closes the door opening , lie opposite each other within the door gap in the bridging direction and run at least partially around the door opening.
- the elevator system further comprises a pressure provision unit connected to the pressure connection for providing the fluid pressure. The procedure includes at least the following steps:
- the method can be carried out automatically by a processor.
- the pressure provision unit can include, for example, a pneumatic and/or hydraulic pump for pumping a gas or a liquid.
- the pressure supply unit can have at least one controllable valve to control the Include fluid pressure in the first hose.
- the pressure provision unit can, for example, be installed in the elevator car.
- a third aspect of the invention relates to a control unit comprising a processor configured to carry out the method described above and below.
- the control unit can include hardware and/or software modules.
- the control unit may include a memory and data communication interfaces for data communication with peripheral devices.
- the control unit can, for example, be connected to a higher-level elevator control for data communication or be part of such an elevator control.
- the control unit can be a door control unit for controlling the door of the elevator car.
- a fourth aspect of the invention relates to an elevator system, comprising an elevator shaft and an elevator car movable in the elevator shaft, which includes a car wall with a door opening, a door for closing the door opening and the door seal described above and below, the door when it closes the door opening closed, is separated from the cabin wall by a door gap to be sealed and the door seal is mounted on the cabin wall and / or the door in such a way that the first hose and the second hose, when the door closes the door opening, within the door gap in the bridging direction each other opposite each other and run at least partially around the door opening.
- the elevator system includes a pressure provision unit connected to the pressure connection for providing the fluid pressure and the control unit described above and below.
- the computer program includes instructions that cause a processor to carry out the method described above and below when the computer program is executed by the processor.
- the computer-readable medium may be a volatile or non-volatile data storage device.
- the computer-readable medium may be a hard drive, USB storage device, RAM, ROM, EPROM, or flash memory.
- the computer readable Medium can also be one that enables a download of program code
- the second hose can, for example, be elastically compressible transversely to its longitudinal direction, i.e. H. be compressible in such a way that in the compressed state it is biased with a restoring force acting in the direction of its (uncompressed) basic shape. This allows the second tube to return to its basic shape on its own when no more compression force is applied to it.
- the second hose can, for example, be compressed to different degrees in different longitudinal sections in the active state of the door seal. This means that fluctuations in the width of the door gap can be compensated for without the door or cabin wall being subjected to excessive pressure and/or bending.
- the first hose and the second hose can be connected to one another to form a hose assembly.
- the hose composite can be produced, for example, by extrusion from one and the same sealing material.
- the second hose it is also possible for the second hose to be made from a different, in particular softer, sealing material than the first hose and/or the remaining hose composite.
- the hose assembly can be mounted on the cabin wall in such a way that the first hose runs between the second hose and the cabin wall.
- the hose assembly can be mounted on the door in such a way that the first hose runs between the second hose and the door. This means that the (dis)assembly of the door seal can be further simplified. In particular, this can make it easier to connect the first hose to the pressure supply unit.
- first and second hoses can also be designed as individual hoses that can be mounted separately from one another.
- first hose can be mounted on the cabin wall and the second hose on the door (or vice versa).
- the second hose can have a plurality of pressure compensation openings distributed in its longitudinal direction.
- a lateral surface of the second hose can have a plurality of pressure equalization openings.
- the pressure compensation openings can be arranged in several rows on opposite sides of the second hose. In this way, the force required to compress the second tube can be further reduced.
- the first hose can be elastically deformable in such a way that in the final shape it is prestressed with a restoring force acting in the direction of the initial shape.
- the elastically resilient properties of the first hose can be achieved, for example, by selecting a suitable sealing material and/or a suitable cross-sectional shape. This causes the first hose to be at one Pressure equalization between the interior and the surroundings of the first hose moves back to its original shape by itself.
- the first tube can have an elliptical cross-section in the initial shape. This means that excessive stretching of the first hose can be avoided. This can improve the durability of the door seal.
- a longitudinal direction of the elliptical cross section can run obliquely or orthogonally to the bridging direction in the assembled state of the door seal.
- the longitudinal direction of the elliptical cross section can correspond to a main axis of its elliptical shape.
- the second hose can have an elongated second profile on its outer surface, which is designed to engage positively and/or non-positively in an elongated second profile receptacle of the elevator car.
- the second hose and the second profile can, for example, have longitudinal directions that are parallel to one another.
- the second profile can, for example, be made from the same sealing material and/or in the same manufacturing step as the second hose and/or the hose composite.
- a difference between the first and second values can be 0.5 bar to 1.5 bar. Such a range of values proved to be particularly practical in tests with standard door gap dimensions.
- Fig. 1 shows an elevator system according to an embodiment of the invention.
- Fig. 2 shows a cross-sectional view of a section of an elevator car from Fig. 1 with a door seal according to an embodiment of the invention in the active state.
- Fig. 3 shows a cross-sectional view of a section of an elevator car from Fig. 1 with a door seal according to an embodiment of the invention in the inactive state.
- Fig. 4 shows a cross-sectional view of a door seal according to an embodiment of the invention in different states.
- Fig. 5 shows a side view of a door seal according to an embodiment of the invention.
- Fig. 1 shows an elevator system 1, which includes an elevator shaft 2 and an elevator car 3 that can be moved vertically in the elevator shaft 2 between different floors.
- the elevator car 3 includes a car wall 4 with a door opening 5 through which the elevator car 3 can be entered from the floors can.
- the door opening 5 can be closed by means of a door 6, here for example a sliding door with two door leaves 7 that can be moved relative to one another in opposite horizontal directions.
- Fig. 1 shows the elevator car 3 in the closed state, in which the door 6 closes the door opening 5 with its two door leaves 7.
- a door seal 8 runs around the door opening 5, more precisely to the left, right and above the door opening 5, which in the active state seals a horizontal door gap 9 (see Fig. 2 and Fig. 3) between the cabin wall 4 and the door leaves 7.
- the door seal 8 comprises a first hose 10 and a second hose 11 made of an elastically deformable sealing material, for example an elastomer such as EPDM, MVQ, silicone or VMQ .
- the two hoses 10, 11 can, for example, be connected to one another to form a hose assembly 12 (see Fig. 4 and Fig. 5).
- the two hoses 10, 11 can be individual hoses that can be mounted separately from one another.
- the door seal 8 is mounted on the cabin wall 4 in such a way that the two hoses 10, 11 are at least partially opposite each other in a (horizontal) bridging direction 13, in which the door seal 8 is intended to bridge the door gap 9 in the active state of the door seal 8 .
- the door seal 8 can be mounted on the door 6 and can be moved together with it.
- the positions of the two hoses 10, 11 with respect to the bridging direction 13 can also be swapped.
- the first hose 10 has a pressure connection 14 (see FIG. 1) which is fluidly connected to a pressure supply unit 15 for providing a fluid pressure, for example in the form of compressed air.
- the pressure supply unit 15 can include an electrically controllable pneumatic valve for controlling the fluid pressure.
- the second hose 11 is not connected to the pressure supply unit 15. Instead, the second hose 11 comprises at least one pressure compensation opening 16, for example a plurality of lateral pressure compensation openings 16, which can be arranged distributed over a longitudinal section of the second hose 11 or its entire length (see FIG. 5).
- the second hose 11 comprises at least one pressure compensation opening 16, for example a plurality of lateral pressure compensation openings 16, which can be arranged distributed over a longitudinal section of the second hose 11 or its entire length (see FIG. 5).
- the pressure equalization opening(s) 16 enables pressure equalization between a cavity of the second hose 11 and its surroundings whenever the second hose 11 is compressed horizontally when the door seal 8 is activated.
- the transverse load on the door 6, i.e. H. of the door leaves 7, can be significantly reduced by the door seal 8 in the active state.
- fluctuations in the width of the door gap 9, for example due to horizontally offset door leaves 7 (e.g. in the case of a telescopic sliding door) or due to inaccuracies in production and / or assembly, can be compensated for without the door seal 8 and the door leaves 7 being too strong /or different levels of stress.
- Fig. 2 shows the active state of the door seal 8, in which the first tube 10 is inflated to such an extent that the second tube 11 touches the door leaves 7 opposite the cabin wall 4 with a contact section of its outer surface.
- the second hose 11 can be compressed to a greater or lesser extent. In the best case, the second hose 11 only rests lightly on the respective inside of the door leaves 7, so that the door gap 9 is sealed, but the door leaves 7 are not significantly loaded by the door seal 8. Even if the second hose 11 is severely deformed, the door leaves 7 are still not significantly loaded by the door seal 8.
- Fig. 3 shows the inactive state of the door seal 8, in which the door gap 9 is released so that the door leaves 7 can be moved unhindered.
- the first hose 10 can, for example, have an elliptical cross-section in the initial shape. This has the effect that the first hose 10 in the final shape is prestressed with a restoring force acting in the direction of the initial shape, i.e. against the bridging direction 13, without being stretched excessively.
- The: can improve the durability of the door seal 8.
- a main axis 17 of the elliptical shape ie its longitudinal direction
- the expansion of the first hose 10 can thus be reduced to a minimum.
- the door seal 8 can have a static friction-reducing structure 18 in the contact section, which is here formed, for example, by a section of the outer surface of the second hose 11, which prevents the contact section from adhering undesirably to the respective counterpart, here to the door leaves 7. helps to avoid the door seal 8 being in the active state.
- the structure 18 is formed by a plurality of elongated elevations on the outer surface, the longitudinal directions of which each run parallel to the longitudinal direction of the second hose 11.
- other structures that reduce static friction are also possible, such as grid-like or knob-like structures.
- the hose composite 12 shown in Fig. 4 and Fig. 5 is designed, for example, with an elongated first profile 19 for mounting the door seal 8 on the cabin wall 4, which runs along an outer surface of the first hose 10 facing away from the second hose 11 in its longitudinal direction and in the assembled state of the door seal 8, it engages in a force-fitting and/or form-fitting manner in a corresponding first profile holder 20 of the elevator car 3.
- the first profile 19 can in particular be part of the hose assembly 12, i.e. H. be made from the same material and/or in the same manufacturing step as the two hoses 10, 11.
- the first profile holder 20 can be formed, for example, by a U- or C-shaped profile strip embedded in the cabin wall 4.
- the second hose 11 can be designed in a corresponding manner with a second profile, which can be connected in a corresponding manner in a force-fitting and/or form-fitting manner to a second profile holder of the elevator car 3.
- the door seal 8 In the inactive state (shown with dashed lines), the door seal 8 has its smallest height Ho in relation to the bridging direction 13. However, the door seal 8 reaches its greatest height H max when the first hose 10 assumes its final shape and the second hose 11 is hardly compressed. Fluctuations in the width of the door gap 9 can be compensated for by compressing the second hose 11, while the first hose 10 maintains its final shape, in and/or against the bridging direction 13 to such an extent that the door seal 8 has an intermediate height Hi between the smallest height Ho that is sufficient to seal the door gap 9 and has the greatest height Hmax.
- a difference between Ho and H max can be, for example, 5 mm to 10 mm.
- a difference between Hi and H max can be, for example, 5 mm or less.
- the door seal 8 can be divided into three sections:
- a compensation section with at least one pressure compensation opening 16 which can be compressed with little force and which can compensate for any lateral offset of the two door leaves 7.
- the compensation section i.e. H. the second hose 11 forming the compensation section is made of a softer material than the remaining door seal 8.
- the transverse load acting on the door leaves 7 can therefore be reduced even further due to the improved force-to-path ratio.
- the distance between the door seal 8 and the surface of the cabin wall 4 can be set to the following values according to EN81-2C, for example:
- the fluid pressure for activating the door seal 8 can be adjusted so that the door seal 8 is expanded to the height H max . This ensures that the door seal 8 completely bridges the door gap 9 in any case.
- a certain reserve pressure can be provided.
- the print provision unit 15 is coupled to a control unit 21 (see FIG. 1), for example a door control unit of the elevator car 3, which comprises a processor 22 which is configured to execute a method described below by executing a computer program stored in a memory of the control unit 21 to control the elevator system 1, more precisely to activate or deactivate the door seal 8.
- the control unit 21 generates a first control signal 23 in a first step when it has recognized that the door seal 8 is activated, i.e. H. the door gap 9 should be sealed. This can be the case, for example, shortly after the door 6 is closed.
- the first control signal 23 causes the pressure provision unit 15 to change the fluid pressure in the first hose 10, in particular to increase it to such an extent that it reaches a first value at which the first hose 10 assumes the final shape.
- the door seal 8 thus rests with the contact section on the door leaves 7 and seals the door gap 9.
- control unit 21 detects that the door seal 8 is deactivated again, i.e. H. If the door gap 9 is to be opened again (which can be the case, for example, while driving shortly before the elevator car 3 stops at a floor), it generates a second control signal 24, which causes the pressure supply unit 15 to increase the fluid pressure in the first hose 10 change, in particular to lower it so far that it reaches a second value at which the first hose 10 returns to its original shape, i.e. that is, in which the door seal 8 again has its smallest height Ho, so that the door seal 8 is separated from the door leaves 7 by a sufficient air gap in good time before the door 6 is opened.
- a second control signal 24 causes the pressure supply unit 15 to increase the fluid pressure in the first hose 10 change, in particular to lower it so far that it reaches a second value at which the first hose 10 returns to its original shape, i.e. that is, in which the door seal 8 again has its smallest height Ho, so that the door seal 8 is separated from the door leaves
- a difference between the first and the second value can be, for example, 0.5 bar to 1.5 bar.
Landscapes
- Elevator Door Apparatuses (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP22162881 | 2022-03-18 | ||
| PCT/EP2023/055636 WO2023174735A1 (de) | 2022-03-18 | 2023-03-07 | Türdichtung für eine aufzugskabine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4493502A1 true EP4493502A1 (de) | 2025-01-22 |
| EP4493502B1 EP4493502B1 (de) | 2025-12-03 |
Family
ID=80820109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23710265.2A Active EP4493502B1 (de) | 2022-03-18 | 2023-03-07 | Türdichtung für eine aufzugskabine |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US12552642B2 (de) |
| EP (1) | EP4493502B1 (de) |
| CN (1) | CN119137062A (de) |
| AU (1) | AU2023236872A1 (de) |
| ES (1) | ES3058566T3 (de) |
| WO (1) | WO2023174735A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2023247750A1 (en) * | 2022-03-30 | 2024-10-10 | Inventio Ag | Platform for an elevator system for a building which is under construction |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1110917A (en) * | 1978-01-24 | 1981-10-20 | Canadair Limited | Sliding doors and seals system for passenger vehicle |
| US5181241A (en) | 1986-06-20 | 1993-01-19 | Badger Meter, Inc. | Lead line supervision system |
| CA1320454C (en) | 1988-07-07 | 1993-07-20 | Michel Aime | Equipment for sealing-off the play between a lift shaft and a lift cage |
| FR2664668B1 (fr) | 1990-07-10 | 1994-01-14 | Joint Francais | Joint d'etancheite gonflable pour porte ou panneau coulissant. |
| FR2665499B1 (fr) | 1990-07-10 | 1994-01-28 | Joint Francais | Dispositif d'etancheite a joint gonflable pour porte ou panneau mobile. |
| JPH06312890A (ja) * | 1993-04-28 | 1994-11-08 | Mitsubishi Denki Bill Techno Service Kk | エレベータ乗りかご |
| EP1428785B2 (de) | 2002-12-10 | 2016-12-07 | Inventio AG | Einrichtung zum Abdichten eines Spaltes zwischen Kabinentür und Kabinenwand in einer Aufzugskabine |
| JP2005029332A (ja) | 2003-07-11 | 2005-02-03 | Toshiba Elevator Co Ltd | エレベータドアの密閉装置 |
| US7578097B2 (en) * | 2003-09-19 | 2009-08-25 | Rite-Hite Holding Corporation | Inflatable door seal |
| JP6022689B2 (ja) * | 2013-07-12 | 2016-11-09 | 株式会社日立製作所 | エレベーターのかご室 |
| WO2019171412A1 (ja) | 2018-03-05 | 2019-09-12 | 株式会社日立製作所 | エレベーター装置 |
| JP6897698B2 (ja) | 2019-02-27 | 2021-07-07 | フジテック株式会社 | エレベータ |
| KR102588868B1 (ko) * | 2021-09-28 | 2023-10-16 | (주)대명엘리베이터 | 연기유입방지모듈이 구비된 엘리베이터 |
-
2023
- 2023-03-07 US US18/845,932 patent/US12552642B2/en active Active
- 2023-03-07 WO PCT/EP2023/055636 patent/WO2023174735A1/de not_active Ceased
- 2023-03-07 ES ES23710265T patent/ES3058566T3/es active Active
- 2023-03-07 EP EP23710265.2A patent/EP4493502B1/de active Active
- 2023-03-07 CN CN202380038311.4A patent/CN119137062A/zh active Pending
- 2023-03-07 AU AU2023236872A patent/AU2023236872A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| ES3058566T3 (en) | 2026-03-11 |
| US20250178869A1 (en) | 2025-06-05 |
| CN119137062A (zh) | 2024-12-13 |
| WO2023174735A9 (de) | 2024-10-31 |
| EP4493502B1 (de) | 2025-12-03 |
| AU2023236872A1 (en) | 2024-10-03 |
| US12552642B2 (en) | 2026-02-17 |
| WO2023174735A1 (de) | 2023-09-21 |
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