EP4200241A1 - Procédé de formage et de lissage d'un rail de guidage à profil creux d'un système de levage - Google Patents

Procédé de formage et de lissage d'un rail de guidage à profil creux d'un système de levage

Info

Publication number
EP4200241A1
EP4200241A1 EP21746492.4A EP21746492A EP4200241A1 EP 4200241 A1 EP4200241 A1 EP 4200241A1 EP 21746492 A EP21746492 A EP 21746492A EP 4200241 A1 EP4200241 A1 EP 4200241A1
Authority
EP
European Patent Office
Prior art keywords
guide
longitudinal direction
along
smoothing
guide rail
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
Application number
EP21746492.4A
Other languages
German (de)
English (en)
Inventor
Erich Bütler
Romeo LO JACONO
Mischa SALVENMOSER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inventio AG
Original Assignee
Inventio AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inventio AG filed Critical Inventio AG
Publication of EP4200241A1 publication Critical patent/EP4200241A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/02—Guideways; Guides
    • B66B7/022—Guideways; Guides with a special shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B19/00—Mining-hoist operation
    • B66B19/002—Mining-hoist operation installing or exchanging guide rails

Definitions

  • the present invention relates to a method for forming and smoothing a guide rail of an elevator system designed as a hollow profile.
  • Elevators are used to transport people within buildings between different levels.
  • an elevator system generally has at least one elevator car and, in many cases, a counterweight coupled in opposite directions to the elevator car.
  • the elevator car and possibly the counterweight are typically moved vertically within an elevator shaft and are guided by guide rails.
  • guide rails for guiding the elevator car on the one hand and guide rails for guiding the counterweight on the other hand are guide rails for guiding the elevator car on the one hand and guide rails for guiding the counterweight on the other hand.
  • Surfaces of the guide rails can serve as guide surfaces on which, for example, guide shoes and/or guide rollers attached to the elevator car can be supported in order to ensure lateral guidance of the elevator car during its vertical movement along the guide shaft.
  • the surfaces of the guide rails can simultaneously also serve as braking surfaces on which, for example, a brake attached to the elevator car can act in order to be able to brake a movement of the elevator car relative to the guide rail.
  • a brake can act, for example, as an emergency stop and/or as a safety brake.
  • guide rails are typically formed using profiles that are T-shaped in cross section.
  • a guide rail is typically composed of a plurality of sections which are attached to a shaft wall of the elevator shaft one above the other and flush with one another along a travel path.
  • a solid central web of the T-shaped profile protrudes from the shaft wall into the interior of the elevator shaft and can, for example, be gripped by a guide shoe attached to the elevator car.
  • the guide shoe can Guide rollers or slides which can move along and bear against opposite surfaces of the central web of the T-shaped profile. If necessary, the same surfaces can also serve as braking surfaces.
  • WO 2019/008708 A1 describes a device for smoothing such guide rails.
  • Such guide rails are formed using a hollow profile, which can have a more complex shape than conventional T-profiles and which can be used to form a number of different guide surfaces and/or braking surfaces on a single guide rail.
  • hollow profile guide rails can reduce the effort involved in assembling an elevator system, since significantly fewer guide rails, ie ideally only one or two guide rails, are installed in the elevator shaft will need.
  • the hollow profile can preferably be formed by joining and/or welding different sheet metal strips. In this way, the hollow profile can be manufactured relatively dimensionally stable, easily and/or inexpensively.
  • the hollow profile is first produced as a continuous strand and then divided into shorter sub-strands for transport purposes.
  • the partial strands can then be fixed in the elevator shaft during assembly of the elevator installation.
  • the partial strands should be arranged one above the other parallel to the travel path of the elevator car in such a way that they form a guide rail that is essentially flush with one another and abutting one another, in which several guide surfaces and/or braking surfaces extend along the travel path as flatly and without gaps as possible.
  • burrs can form at the separating points created in the process.
  • local deformations can occur when the hollow profile strand is produced and/or when it is divided into partial strands, so that a cross section of the hollow profile is not homogeneous along the entire length of the guide rail. Instead, a guide rail composed of the partial strands can have locally lateral unevenness.
  • a method for forming a guide rail of an elevator system designed as a hollow profile is described.
  • the procedure has the steps:
  • the smoothing device having: a guiding device , a removal device, and a pressing device, wherein the guiding device is set up to be moved with low friction in a longitudinal direction along a first of the opposite surfaces and in doing so to guide the smoothing device along the first surface, the pressing device being set up to move the removal device away from the guide means and towards a second of the opposed surfaces, and wherein the removal means is adapted to, upon movement in the longitudinal direction along the second n surface material from the second surface to remove, and
  • a first independent invention not covered by the claims can be seen in a smoothing device for smoothing mutually opposite surfaces on a guide rail of an elevator system designed as a hollow profile.
  • the smoothing device has a guide device, a removal device and a pressing device.
  • the guide means is adapted to be moved with low friction in a longitudinal direction along a first of the opposing surfaces, thereby guiding the trowel along the first surface.
  • the pressing device is adapted to press the removal device away from the guide device and towards a second of the opposite surfaces.
  • the removal device is set up to remove material from the second surface during a movement in the longitudinal direction along the second surface.
  • a second independent invention not covered by the claims can be seen in a method for smoothing mutually opposite surfaces on a guide rail of an elevator system designed as a hollow profile.
  • the procedure comprises at least the following steps:
  • a third independent invention not covered by the claims can be seen in a method for forming a guide rail of an elevator system designed as a hollow profile, the method comprising at least the following steps:
  • an essential idea underlying the invention is that it was recognized that tools and methods, such as those used to smooth out unevenness when installing conventional T-profile guide rails, are often not used satisfactorily with guide rails designed as a hollow profile can become.
  • a structurally simple tool in the form of a smoothing device is therefore proposed, which is specially adapted to the conditions in such guide rails, with the aid of which bumps can be smoothed out easily, efficiently and without a high risk of damaging the surfaces of the guide rails. can be smoothed.
  • the smoothing device is designed to be used between opposing surfaces of the guide rail.
  • the smoothing device should be supported by a guide device on one of the opposite surfaces and be guided by it.
  • a removal device should be able to remove excess material from the opposite, second surface of the guide rail.
  • the removal device is pressed by a pressing device in a targeted manner with a suitable mechanical pretension away from the guide device towards the second surface.
  • the entire smoothing device can be constructed in a relatively simple manner.
  • the smoothing device can be designed without active actuators and/or controls.
  • the trowel can be attached to the guide rail by a technician and then moved along the guide rail while troweling a surface of the guide rail.
  • Modern guide rails in the form of hollow profiles are made of sheet metal which, in comparison to the T-profiles of conventional guide rails, has a significantly lower material thickness. Accordingly, no tongue and groove arrangements can generally be provided on the end faces of such hollow profile guide rails. A flush alignment of adjacent guide rails can therefore be more complex than with conventional guide rails. For example, connecting elements or pins can engage in the hollow sections of adjacent guide rails in order to be able to align them relative to one another.
  • Burrs on the ends of rail segments and/or an arrangement of adjacent guide rail segments that is not exactly aligned can also lead to lateral unevenness on the surfaces of the guide rails.
  • the lateral unevenness described should be smoothed out, in particular to avoid excessive wear on components to be guided, such as guide shoes, guide rollers or the like, and/or to avoid excessive To avoid noise when moving such leading components over the bumps away.
  • a method is therefore proposed which includes the use of a tool in the form of a smoothing device.
  • the tool has a relatively simple design, it is specially adapted to the needs and circumstances of smoothing unevenness on hollow profile guide rails.
  • the smoothing device has a guide device, a removal device and a pressing device. Possible configurations and properties of these components are described in detail below.
  • the guide device is set up to guide the smoothing device along a first of the two opposite surfaces of the hollow profile when it is moved in the longitudinal direction along the guide rail.
  • the guide device is designed to be moved with little friction in the longitudinal direction along the first surface. Frictional forces between the guide device and the first surface of the guide rail should remain so low that the entire smoothing device can be moved along the guide rail, preferably manually by a technician.
  • it In order to be able to move the guide device precisely along the first surface, it should be able to be supported on the first surface either over an area or at a number of spaced positions.
  • the guide device can have at least two contact devices for this purpose, which are arranged and configured in such a way that the smoothing device can be placed against the first surface with contact surfaces of each of the two contact devices and can be moved along the first surface with little friction in order to move the smoothing device along the first surface respectively.
  • the abutment devices can be designed, for example, as a sliding element or roller.
  • a contact surface can be a sliding surface of a sliding element or a peripheral surface of a roller directed towards the first surface of the guide rail.
  • the sliding element or the roller can be formed from a material or can be coated with a material that enables low sliding resistance or low rolling resistance when moving along the first surface of the guide rail.
  • the two abutment devices are arranged at a distance from one another in relation to the longitudinal direction.
  • the at least two contact devices can be arranged on the smoothing device in such a way that they are arranged one behind the other in relation to the longitudinal direction.
  • a distance between the abutment devices can preferably be larger than typical dimensions of unevenness to be smoothed. For example, such a distance can be greater than 5 cm, preferably greater than 10 cm.
  • the guide device can have at least one roller, which is arranged and configured in such a way that the smoothing device can be placed against the first surface with a peripheral surface of the roller and rolled along the first surface in order to guide the smoothing device along the first surface.
  • the guide device preferably has at least two rollers, which are arranged and designed in such a way that the smoothing device can be placed on the first surface with one peripheral surface of each roller and rolled along the first surface in order to guide the smoothing device along the first surface.
  • the guide device can be moved along the first surface of the guide rail with particularly little friction.
  • the respective peripheral surface of the roller defines a relative positioning of the guide device in relation to the first surface.
  • the removal device can be set up to contact the second surface of the guide rail at a plurality of contact points spaced apart from one another in the longitudinal direction along a plane and to contact the second surface with at least one sharp-edged removal component in order to, during movement in the longitudinal direction along the second surface to remove material from the second surface.
  • the removal device is preferably designed in such a way that it does not just contact the second surface opposite the first surface at a point or along a line transverse to the longitudinal direction, but this second surface at several different points that are spaced apart from each other in the longitudinal direction and which are in a common plane to contact.
  • the removal device is thus supported flatly on the second surface of the guide rail or at a plurality of points on a plane formed by the second surface. While the guide device is supported on the first surface of the guide rail in such a way that it can not only be guided by the first surface but also cannot be tilted relative to the first surface, the removal device is similarly on the opposite second surface of the guide rail supported so that it is guided by the second surface and cannot tilt substantially relative to the second surface.
  • the removal device has a removal component. At least one end of this removal component directed towards the second surface of the guide rail is sharp.
  • the removal component is arranged and held on the removal device in such a way that the sharp-edged end of the removal component contacts this second surface.
  • the ablation component can have a single blade, for example, and can thus be designed similar to a planer.
  • the smoothing device can smooth lateral unevenness on the second surface of the guide rail efficiently and easily. In this way, a risk that more material than required is removed and that dents are generated as a result, for example, can be minimized.
  • the removal device can have a plurality of sharp-edged removal components which are designed to contact the second surface of the guide rail at a plurality of contact points spaced apart from one another in the longitudinal direction along a plane in order to remove material from the second surface when moving in the longitudinal direction along the second surface to remove surface.
  • a plurality of removal components can be provided on the removal device, each of which makes contact with the second surface of the guide rail with a sharp-edged end.
  • the contact points at which the different removal components touch the second surface should be arranged one behind the other in the longitudinal direction and spaced apart from one another.
  • Each of the various cutting components can have a sharp blade similar to a planer.
  • the removal device can have a plurality of protruding, sharp-edged burrs on a common surface.
  • the removal device can be designed similar to a rasp.
  • several sharp-edged tips can be used on the removal device as removal components be provided, with which the removal device can remove material from the second surface.
  • the removal device can be designed similar to a file or a surface covered with sandpaper.
  • the ablation component has a width in a direction transverse to the longitudinal direction, which corresponds at least to a width of the second surface to be smoothed.
  • a blade or a burr or a sum of a large number of sharp-edged tips can have a width which is at least as wide as the second surface of the guide rail to be smoothed.
  • the second surface can thus be smoothed over its entire width with the aid of the smoothing device without having to displace the smoothing device in a direction transverse to the longitudinal direction.
  • the removal device can be a passive, inherently rigid component.
  • the removal device can be designed as a passive component which cannot generate any movement on its own.
  • the removal device does not need to have a drive, a controller, an energy supply and/or the like, as for example an angle grinder or a belt grinder.
  • the removal device can be designed as a very simple component and, similar to a plane, a rasp, a file or the like, can only remove material from a surface when it is moved by a person relative to the surface.
  • the removal device can be designed as an inherently rigid component, in which individual areas or components of the removal device can essentially not be moved relative to other areas or components of the removal device.
  • the removal device can be designed in one piece.
  • the removal device can be designed as a plate in which blade-like or pointed projections are provided on a side directed towards the second surface.
  • the removal device can be held stationary relative to the guide device in a direction parallel to the longitudinal direction. Furthermore, the removal device can be held displaceably relative to the guiding direction in a direction transverse to the longitudinal direction away from the guiding direction.
  • the smoothing device can be designed in such a way that its removal device can be moved at least slightly in a direction transverse to the longitudinal direction in which the smoothing device is to be displaced when smoothing the guide rail, but cannot be displaced in the longitudinal direction itself relative to the guide device is. Accordingly, the guide device and the removal device always remain at the same height in relation to the longitudinal direction when the smoothing device is moved in the longitudinal direction along the guide rail.
  • the guide device can thus always suitably support the removal device and guide it along the first surface of the guide rail.
  • the removal device can move slightly towards or away from the guide device transversely to the longitudinal direction. Accordingly, the abrader can to some extent follow any bumps or deviations from perfectly parallel alignment of the first and second surfaces.
  • the removal device is supported on the guide device via the pressing device and is mechanically preloaded by the pressing device towards the second surface to be smoothed.
  • the pressing device has at least one elastic spring element, which is mounted on the guide device on the one hand and on the removal device on the other hand.
  • the pressing device has at least one elastically deformable spring element.
  • This elastically deformable element can be, for example, a spring, an elastomer component or the like.
  • the spring element is held or mounted on the guide device on one side. On an opposite side, the spring element is held on the removal device or stored. Accordingly, the spring element of the pressing device connects the guide device to the removal device, so that these can be moved slightly towards or away from one another due to the elastic deformability of the spring element.
  • An elasticity or a spring constant of the spring element can be selected such that the removal device is supported on the guide device via the pressing device in such a way that it is pressed with a desired force or a desired pressure against the second surface of the guide rail to be smoothed.
  • the force or the pressure can be selected in such a way that on the one hand excess material is efficiently removed from the surface to be smoothed when the smoothing device is moved in the longitudinal direction, but on the other hand the forces that arise here, i.e. in particular frictional forces, which counteract the movement in the longitudinal direction, are not become excessively high so that the trowel can preferably be easily moved by one person's hand.
  • the pressing device has at least two elastic spring elements which are each mounted on the guide device on the one hand and which are each mounted on the removal device on the other hand and which are spaced apart from one another in the longitudinal direction.
  • the removal device can be supported on the guide device via at least two spring elements arranged spaced apart in the longitudinal direction.
  • a force transmission between the removal device and the guide device can be made spatially more uniform.
  • the guide device tilts excessively relative to the removal device about an axis transverse to the longitudinal direction.
  • Embodiments of the described smoothing device can be used in a method according to an embodiment of the second aspect of the invention for smoothing surfaces of a guide rail as follows: first the smoothing device is inserted between the opposite surfaces of the guide rail. The smoothing device is positioned in such a way that its guide device rests on the first surface of the guide rail on the one hand and on itself this can support and that its removal device on the other hand rests against the second surface of the guide rail to be smoothed and is pressed against this second surface with a pressure effected by the pressing device. The trowel is then successively displaced in the longitudinal direction along the guide rail and thus moves along the first and second surfaces thereof.
  • the smoothing device is preferably moved by a technician who holds the smoothing device, for example by a handle provided on it, and pushes it along the guide rail. During this longitudinal movement, the removal device removes excess material on lateral unevenness of the second surface of the guide rail. If necessary, the smoothing device can be moved back and forth several times in the longitudinal direction. In order to smooth the first surface of the guide rail as well, the smoothing device can be removed from the position between the opposite surfaces and then rotated through 180° and re-inserted and again displaced in the longitudinal direction with the removal device then lying against the first surface.
  • such smoothing of opposite surfaces may be performed after a plurality of prepared sections or segments of the guide rail are longitudinally stacked and aligned adjacent to each other. Any burrs or other lateral unevenness, as they preferably occur at transitions between adjacent sections of the guide rails, can be smoothed out easily and with little effort.
  • FIG. 1 shows a cross-sectional view of a guide rail designed as a hollow profile.
  • FIG. 2 shows a side view of a smoothing device according to an embodiment of the present invention between surfaces to be smoothed of a guide rail designed as a hollow profile.
  • FIG. 3 shows a plan view of a removal device of a smoothing device according to an embodiment of the present invention.
  • FIG. 1 shows a cross section through a guide rail 101 of an elevator system designed as a hollow profile.
  • a guide rail 101 is formed from relatively thin sheet metal.
  • the sheet metal can be provided as a rolled profile or strip material.
  • the hollow profile forming the guide rail 101 can have a relatively complex geometry, in which several different surfaces are formed on an outside of the hollow profile, which are intended to serve different functions when the guide rail 101 is in use.
  • the guide rail 101 shown in FIG. 1 has a first area that forms guide surfaces 103 for guiding an elevator car.
  • These guide surfaces 103 comprise a first surface 109, a second surface 111 and a third surface 113.
  • the first surface 109 and the second surface 111 face one another and are connected by the third surface 113 arranged transversely to these two surfaces 109,111.
  • the first surface 109 and the second surface 111 are parallel to each other.
  • the three surfaces 109, 111, 113 form the guide surfaces 103 with a concave design U-shaped cross section.
  • Guide elements such as a guide shoe attached to the elevator car or guide rollers can be moved along these guide surfaces 103 and are supported on the three surfaces 109, 111, 113, so that the elevator car can be guided in three spatial directions.
  • the guide rail 101 forms guide surfaces 105 for guiding a counterweight.
  • these guide surfaces 105 are formed by two convex sections of the hollow profile which are bent through 180° and are oriented in opposite directions. Guide shoes on the counterweight can be supported on opposite surfaces in these two partial areas, so that the counterweight can be guided in a total of four spatial directions.
  • the guide rail 101 can have a braking surface 107 on which the elevator car and/or the counterweight can be braked, for example by engaging a brake shoe.
  • the braking surface 107 is formed by a convexly bent or folded part of the hollow profile.
  • An entire guide rail 101 is typically composed of sections 101a, 101b.
  • lateral unevenness can occur, for example due to burrs that were formed when a strand that was initially formed as a continuous hollow profile was cut into partial strands, or due to local deformations the sections 101a, 101b.
  • Unevenness due to locally varying sheet metal thicknesses of the metal sheets used for the guide rail 101 can also occur.
  • Local unevenness can be smoothed relatively easily with suitable tools on convex areas, such as those that occur, for example, on the guide surfaces 105 for guiding the counterweight or on the braking surface 107 .
  • convex areas such as those that occur, for example, on the guide surfaces 105 for guiding the counterweight or on the braking surface 107 .
  • concave areas such as the U-shaped into the interior of the hollow section reaching area for forming the guide surfaces 103 for guiding the In the elevator car, however, smoothing out lateral unevenness can be difficult.
  • irreversible damage such as local dents in the guide rail 101 can very easily be produced.
  • an anti-corrosion layer provided on the surfaces of the hollow profile such as a zinc layer, can be damaged or locally removed when attempting to smooth such surfaces in a conventional manner, which can lead to later signs of corrosion on the guide rail 101 .
  • a special tool in the form of a smoothing device 1 is therefore described.
  • An exemplary embodiment of such a smoothing device 1 is shown in FIG.
  • the smoothing device 1 has a guide device 3, a removal device 5 and a pressing device 7.
  • the guide device 3 can be moved along with little friction of the first surface 109 are moved, whereas the removal device 5 is pressed against the second surface 111 by the pressing device 7 supported on the guide device 3 .
  • a predetermined contact pressure, which is dependent on the pressing device 7, preferably acts between the removal device 5 and the second surface 111.
  • the removal device 5 is designed for this purpose when the smoothing device moves
  • the smoothing device 1 has two attachment devices
  • rollers 15 can each bear against the first surface 109 with their peripheral surface 17 acting as a contact surface 13 and can roll along it with little friction when the smoothing device 1 is moved in the longitudinal direction 9.
  • the two rollers 15 are arranged at a distance from one another in relation to the longitudinal direction 9, so that the guide device 1 can be moved via the rollers 15 to in Longitudinally 9 spaced positions on the first surface 109 of the guide rail 1 can be supported.
  • the two rollers 15 are rigidly connected to one another via one or more longitudinal struts 23 .
  • the pressing device 7 is provided between the guide device 3 and the removal device 5 in order to elastically spread the aforementioned two components away from one another in a direction, i.e. transversely to the longitudinal direction 9 .
  • the pressing device 7 in the example shown has two spring elements 21, one end of which is mounted on the guide device 3, i.e. for example on the longitudinal strut 23, and the other end of which interacts with the removal device 5.
  • the spring elements 21 are dimensioned in terms of their dimensions and spring tensions such that a desired mechanical prestress is effected on the removal device 5 towards the second surface 111 to be smoothed when the smoothing device 1 is inserted between the two surfaces 109, 111.
  • the removal device 5 can be designed as a passive, inherently rigid component.
  • the removal device 5 can be designed as a type of solid plate which has one or more sharp-edged removal components 19 on its surface directed towards the surface 111 to be smoothed.
  • the removal components 19 are preferably designed and arranged in such a way that they contact the surface 111 of the guide rail 101 to be smoothed at a plurality of contact points 29 spaced apart from one another in the longitudinal direction 9 when the smoothing device 1 is arranged between the two surfaces 109, 111 running parallel to one another.
  • the various contact points 29 preferably all lie in a common plane, which corresponds to the plane of the surface 111 to be smoothed.
  • the removal device 5 can be in the form of a rasp element 25 .
  • outwardly protruding rasp structures 33 can be provided, which are sharp-edged at their edges directed away from the base body 31 and protruding toward the surface 101 to be smoothed.
  • the rasp element 25 of the removal device 5 can have a width B (see FIG. 3) which essentially corresponds to a width b (see FIG. 1) of the surface 111 to be smoothed.
  • the smoothing device 1 can thus be inserted manually between the two surfaces 109, 111 by a technician.
  • the technician can then move the smoothing device 1 in the longitudinal direction 9 along the guide rail 101, for example with the aid of handles 27 provided on it.
  • the smoothing device 1 can be moved along the first surface 109 with relatively little friction via its guide device 3 and guided by it.
  • the removal device 5 is pressed by the pressing device 7 evenly and parallel to the first surface 109 against the second surface 111 and removes any laterally protruding material from the second surface 111 with its sharp-edged removal components 19 in the area of the contact points 29 . Due to the precise guidance of the smoothing device 1 and the uniform contact pressure of its removal device 5 against the second surface 111, the risk of excess material being removed from the second surface 111 and thus dents being formed is extremely low. Furthermore, since the removal device 5 is only pressed against the second surface 111 with a limited pressure predefined by the pressing device 7, it is generally possible to prevent an anti-corrosion layer present on the surface 111 to be smoothed from being locally removed or damaged.

Landscapes

  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Escalators And Moving Walkways (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

L'invention concerne un procédé de formage et de lissage d'un rail de guidage à profil creux (101) d'un système de levage, comprenant l'utilisation d'un appareil de lissage (1). L'appareil de lissage (1) est conçu pour lisser des surfaces opposées (109, 111) sur un rail de guidage à profil creux (101) d'un système de levage. L'appareil de lissage (1) comprend un dispositif de guidage (3), un dispositif d'enlèvement (5) et un dispositif de pression (7). Le dispositif de guidage (3) est conçu, par exemple à l'aide de rouleaux (15), pour être déplacé avec un faible frottement dans une direction longitudinale (9) le long d'une première (109) des surfaces opposées (109, 111) et, de ce fait, pour guider l'appareil de lissage (1) le long de la première surface (109). Le dispositif de pression (5) est conçu, par exemple à l'aide d'éléments de type ressort (21), pour presser le dispositif d'enlèvement (7) à l'opposé du dispositif de guidage (3) et vers une seconde (111) des surfaces opposées (109, 111). Le dispositif d'enlèvement (5) est conçu, par exemple à l'aide d'un élément de type râpe (25), pour enlever du matériau depuis la seconde surface (111) lors d'un mouvement dans la direction longitudinale (9) le long de la seconde surface (111).
EP21746492.4A 2020-08-18 2021-07-23 Procédé de formage et de lissage d'un rail de guidage à profil creux d'un système de levage Pending EP4200241A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP20191549 2020-08-18
PCT/EP2021/070724 WO2022037897A1 (fr) 2020-08-18 2021-07-23 Procédé de formage et de lissage d'un rail de guidage à profil creux d'un système de levage

Publications (1)

Publication Number Publication Date
EP4200241A1 true EP4200241A1 (fr) 2023-06-28

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Application Number Title Priority Date Filing Date
EP21746492.4A Pending EP4200241A1 (fr) 2020-08-18 2021-07-23 Procédé de formage et de lissage d'un rail de guidage à profil creux d'un système de levage

Country Status (6)

Country Link
US (1) US20230322525A1 (fr)
EP (1) EP4200241A1 (fr)
CN (1) CN115943116A (fr)
AU (1) AU2021326959A1 (fr)
CA (1) CA3191694A1 (fr)
WO (1) WO2022037897A1 (fr)

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CN111186747B (zh) * 2020-03-18 2024-04-09 龙闯智能科技(浙江)有限公司 一种电梯运行方向导向的空心导轨

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CN115943116A (zh) 2023-04-07
AU2021326959A1 (en) 2023-03-16

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