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EP2250334A1 - Dispositif pour immobiliser des portes par attraction magnétique - Google Patents

Dispositif pour immobiliser des portes par attraction magnétique

Info

Publication number
EP2250334A1
EP2250334A1 EP09712188A EP09712188A EP2250334A1 EP 2250334 A1 EP2250334 A1 EP 2250334A1 EP 09712188 A EP09712188 A EP 09712188A EP 09712188 A EP09712188 A EP 09712188A EP 2250334 A1 EP2250334 A1 EP 2250334A1
Authority
EP
European Patent Office
Prior art keywords
door
magnetic
tilting
housing
cover plate
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
Application number
EP09712188A
Other languages
German (de)
English (en)
Other versions
EP2250334B1 (fr
Inventor
Viktor Bosshard
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.)
Jos Berchtold AG
Original Assignee
Jos Berchtold 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 Jos Berchtold AG filed Critical Jos Berchtold AG
Priority to EP20090712188 priority Critical patent/EP2250334B1/fr
Publication of EP2250334A1 publication Critical patent/EP2250334A1/fr
Application granted granted Critical
Publication of EP2250334B1 publication Critical patent/EP2250334B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
    • E05C17/56—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by magnetic or electromagnetic attraction or operated by electric or electromagnetic means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/11—Magnetic

Definitions

  • the present invention is an apparatus according to the preamble of the first independent claim. It serves to detect doors by means of magnetic attraction.
  • Magnetic door stoppers are known in the art with magnetic parts installed in the door and in the floor, which cause a door which moves over the magnetic part positioned in the floor to be stopped.
  • CH 383,822 discloses, among other things, a stop device in which a permanent magnet installed in the door lifts a movable ferromagnet embedded in the floor and pulls it into a slot of the door constructed therefor. This stops the further movement of the door in the same direction.
  • a permanent magnet installed in the door lifts a movable ferromagnet embedded in the floor and pulls it into a slot of the door constructed therefor. This stops the further movement of the door in the same direction.
  • the magnetic attraction of a conventional permanent magnet is too small to hold the door firmly.
  • US Pat. No. 6,211,411 addresses this problem and discloses a magnetic doorstop which consists of a bottom component with a movable ferromagnetic plate and a door component.
  • the door component contains not only a magnet but also an elastic element, wherein the movable plate of the Ground component engages by means of magnetic attraction in this door component and is additionally fixed by means of the elastic element.
  • the ground-mounted movable member is made of magnetic or ferromagnetic material, the corrosion susceptibility and optical appearance of which is disadvantageous.
  • the present invention has for its object to provide a retractable magnetic locking device which overcomes the aforementioned disadvantages of the prior art.
  • the inventive device for detecting or stopping a door relative to a stationary structure by means of magnetic attraction has at least one tiltable tilting element and a counter element, in which engages the tilting element in magnetic attraction, on. In a locked position, the tilting element engages in the counter element and the door is stopped and optionally locked, whereas in a lowered position, the tilting element sunk and the door is movable.
  • the tilting element in this case has a first magnetic element and the counter element has a second magnetic element, wherein at least one of these magnetic elements is a permanent magnet or electromagnet, whereas the other magnetic element may be made of ferromagnetic material soft magnetic or magnetizable.
  • the tilting element and the counter element are with respect to each other so that they can be brought by magnetic attraction between the first and second magnetic element in the locking position, whereby further relative movement between the door and the fixed structure, for example, a building part such as floor, wall or ceiling, either prevented or at least one Movement in the same direction is stopped.
  • the tilting element also has a cover plate of non-magnetic material, wherein the cover plate is aligned with the surface of the stationary structure or rests on the surface of the stationary structure and optionally aligned with a mounted on the stationary structure panel.
  • non-magnetic Materials which are not permanently magnetic are referred to as “non-magnetic” in this patent, and materials which can be termed “nonmagnetic” can therefore be magnetizable or magnetically soft.
  • cover plate In connection with the cover plate, this means that it is perfectly within the meaning of the invention to use a cover plate of non-magnetic material but magnetizable material. In preferred embodiments, however, the material of the cover plate is selected so that it does not contribute significantly to the magnetic attraction between the magnetic elements.
  • Another advantage of the device according to the invention in comparison to the likewise retractable magnetic door stoppers known from the prior art is the construction of the tilting element, in particular of its exposed parts, by the use of a more solid cover plate of the first one, both with respect to mechanical stress and corrosion magnetic element.
  • This cover plate not only provides protection for the first magnetic element but also mechanical reinforcement of the tilting element.
  • a better optical adaptation to visible building parts is made possible by the cover plate of the tilting element, whereby the range of applications of the inventive device over conventional door stoppers or locking devices is significantly extended.
  • the locking device according to the invention thus causes a stopping and, if appropriate, a holding of doors.
  • the device according to the invention determines the choice of the size and the energy product (equivalent to energy density, SI unit kJ / m 3 ) of the permanent or the elements respectively the strength of the magnetic field of the electro-magnetic elements, how large the retention force magnetic attraction for a door of predetermined design. As the case requires, it will be sufficient to stop the relevant door or to lock it in the stopped position as well.
  • the counter element is installed at the bottom end in a door and the tilting sunk so installed at a desired location on the ground that the door as soon as it sweeps over the tilting element, stopped and optionally locked.
  • the tilting element can also be installed or attached in or on a wall or a ceiling.
  • the device according to the invention is also suitable for locking doors relative to stationary structures, which are independent of buildings, such as fence posts or wall surfaces, on which a door or gate is stopped or locked.
  • the tilting element or the counter element is mounted on a wall, on a floor or on a ceiling of a vehicle instead of on a stationary structure.
  • a door or a gate can also be held in two different positions, for example by mounting a counter element on the underside and a second counter element in the front of the door, and correspondingly the one tilting element at a desired position, for example is mounted on a wall or on a fence post and the other tilting element at the other desired location on the ground.
  • tilting elements are basically installed on any desired positions on the same or on different stationary structures, and also for the installation of the counter element is analogous variability such as that one or two counter-elements are mounted on the same front side of the door, and so on ,
  • the door may be guided from one to the other locking position with a slight push or pull on the door which overcomes the magnetic attraction between the tilting member and the counterpart member.
  • the erfmdu ⁇ gsgemässe device in such and also in other applications also simultaneously fulfills the function of a conventional doorknob, wherein a user exercises the pressure or train directly on the door or on a handle attached to the door.
  • Such an embodiment is particularly well suited, for example, for stopping and possibly locking a garden gate which is only half height, for example, and which thus can be opened without a handle and possibly also without a handle, at least in one direction, also without a hand.
  • a garden gate which is only half height, for example, and which thus can be opened without a handle and possibly also without a handle, at least in one direction, also without a hand.
  • the distribution of tilt and counter element on the door and stationary structure can be reversed.
  • an axis of the tilting element anchored in a component holds it rotatably in the component, wherein the tilting element ment either in a cavity of the stationary structure or the door is sunk. In the retracted position, the tilting element falls back into the cavity. It can also be withdrawn into the cavity with a known means such as a spring or with a third magnetic element.
  • the cover plate over the first magnetic element protruding so that the protruding edge portion in the retracted position rests on the surface of the stationary structure, while the first magnetic element is recessed in the cavity.
  • the stationary structure has a complementary recess for the overlying edge region, so that the surface of the cover plate in the retracted position is aligned with the surface of the stationary structure.
  • the tiltable tilting element is equipped with a housing.
  • the tilting tilting element and the housing together form a locking element. But it can also be called a housing used without tilting element as a locking element.
  • the tilting element can be installed either in the most stationary structure or in the door, wherein the housing is at least partially retractable.
  • the tilting element in the ground, in the wall or in the ceiling and the counter element in the Door installed.
  • the cover plate is preferably projecting beyond the first magnetic element, so that the protruding edge region rests in the lowered position on the surface or in a recess of the surface of the stationary structure, while the first magnetic element in the housing at least partially into a cavity the stationary structure is sunk.
  • the housing has a retractable substructure and a panel.
  • the side walls of the substructure delimit the hollow space in which the tilting element recovers or is retrieved in the lowered position.
  • a bottomless substructure is made very easily and inexpensively by sawing off sections of a square tube. Before cutting, holes are drilled in the square tube for one axis of the tilting element.
  • the panel rests on the substructure and on a surface of a building part, wherein the panel is fastened, for example, to welding points on the substructure and by means of screws or adhesive on the building part.
  • the panel and the cover plate of the tilting element made of the same material and are coordinated such that the top of the cover plate is aligned with the top of a panel of the housing, as soon as the tilting pelement is in the retracted position.
  • the thickness of both the panel and the cover plate in a range of 0.1 cm to 2 cm and in other preferred embodiments does not exceed 0.5 cm or 1 cm thickness.
  • the outer edge of the bezel is chamfered.
  • the material for the cover plate and the diaphragm is a corrosion-resistant metal or a corrosion-resistant metal alloy, in particular a stainless steel or chrome steel.
  • the same material is used for the cover plate and the diaphragm, wherein besides the solid properties such as resistance to cleaning methods, optionally weather resistance, also relevant aesthetic aspects can be taken into account for a particular application.
  • cover plates and / or panels are suitable made of color-matched stable particular impact-resistant plastic, hardwood or other materials.
  • the cover plate of the tilting element and the aperture of the housing are equipped with a chrome steel plate of the same thickness.
  • This preferred embodiment is characterized by high quality in terms of mechanical stability, corrosion resistance and optical appearance and is at the same time both in the manufacture and in the assembly of the tilting element particularly simple and therefore inexpensive.
  • the locking element of the erf ⁇ ndungsgemä- ssen device with or without housing which are mounted on the wall or on the ceiling are equipped with a third magnetic element.
  • the third magnetic element is usually a part of the substructure of the housing and may for example be integrated in a housing wall or a housing bottom.
  • Either at least the first magnetic element is a permanent or electromagnet, wherein the second and optionally the third magnetic element may also be soft ferromagnetic, or the second and the third magnetic element are a permanent or an electromagnet, if the first magnetic element is a soft ferromagnetic element is.
  • At least one of the magnetic elements is a permanent magnet or an electromagnet for the magnetic attraction required depending on the position.
  • these embodiments are constructed so that the magnetic attraction between the first and second magnetic elements is stronger than that between the first and third magnetic elements.
  • a magnetic and a mechanical return mechanism for example by means of a spring can be used.
  • Such magnetic materials include, for example, compounds containing rare earth elements, in particular known high energy magnetic materials such as samarium cobalt or preferably neodymium-iron-boron are used.
  • high energy magnetic materials such as samarium cobalt or preferably neodymium-iron-boron are used.
  • the counter-element has a reinforcing element for receiving and distributing the forces which arise during the engagement of the tilting element in the counter-element.
  • this reinforcing element can fulfill various functions, in particular: fastening Supply and protection of the second magnetic element, reinforcement of the door at the point where the cavity was created for the counter element, recording the forces that can occur in a violent impact of a door on the tilting element, and distribution of these forces on a larger area, and Protection of the underlying door material.
  • a reinforcing member which protects the second magnetic member is made of a metal plate having a larger area than the adjacent surface of the second magnetic member, so that it can be fastened with a plurality of screws in the door.
  • a metal plate which is larger than the impact surface of the engaging tilting element may distribute the impact forces over a greater extent in the door, which is particularly relevant insofar as the cavity created for the engagement of the tilting element, weakens the door at this point sensitively.
  • This reinforcement is a further advantage of the device according to the invention over devices which are known from the prior art.
  • a preferred embodiment of a reinforcing element covers both sides of the notch in the door and is made of one piece, for example, made of an angle plate or angle profile, wherein the one leg of the angle profile for receiving and better distribution of forces resulting from the engagement of the tilting element is used , and the second leg covers the second magnetic element in the direction of the engaging tilting element.
  • the reinforcing element it has a buffer area made of elastic material, which may comprise one or both leg areas.
  • the inventive devices are preferably used for fire doors.
  • a door with a remote-controlled door closer is kept open and closed in the event of fire and engages in a device according to the invention.
  • the locking element can easily be mounted in the middle of the corridor in a busy space zone on the ground, as it is flush or almost flush with the ground surface can be installed.
  • the first and / or second magnetic element comprises an electromagnet, care being taken that the choice of the magnetic core and amperage achieves a sufficiently strong magnetic attraction between the magnetic elements to reduce the attenuating effect of the magnetic elements Overcome cover plate.
  • Variants of the device according to the invention with a magnetic element which is electromagnetic can in principle be combined with other preferred embodiments. Since the magnetic attraction of the electromagnets on the regulation of the power supply is adjustable, such inventive devices are used in particular for fire doors.
  • a fire door is normally kept open under power supply by means of a locking element of a first device according to the invention comprising an electromagnet. In case of fire, the door automatically falls due to interruption of the power supply and engages in the locking element of a second device according to the invention, which has a permanent magnet.
  • a door is equipped with a door closer and a locking device according to the invention, wherein the force of the door closer exceeds the retaining force of the locking device.
  • the inventive device acts as a retractable doorstop for a classic situation in which the door should be closed automatically with the door closer.
  • the restraining force of the detent exceeds the force of the door closer acting on the detent.
  • the door closer is less strong than the locking device. In this configuration, the door only remains OfFen, when it is opened until the tilting element engages in the counter element, whereas otherwise it automatically closes.
  • the double swinging door is kept open by the magnetic attraction of two inventive devices, the tilting elements are each equipped with an electromagnetic element and are installed at the edge of the aisle in floor, wall or ceiling.
  • the magnetic attraction works only under power, which is interrupted in case of fire, so that then fall doors with the help of
  • Two further devices according to the invention each equipped with a permanent magnet and sunk in the ground or on the ceiling in the middle of the corridor, that is to say in the zone which is most frequently visited, immediately lock the closed doors.
  • Figure 1 A section through a preferred embodiment of the inventive device in a lowered position, in which a tiltable tilting element is recessed in a housing.
  • FIG. 2 A view of the tilting element of this preferred embodiment of the invention with the tilting element in the retracted position.
  • FIG. 3 shows a section through this preferred embodiment of the device according to the invention in a locking position, which shows the tiltable tilting element in engagement with a counter-element.
  • FIGS 1 to 3 show a preferred embodiment of the invention, the same numbers each denote the same parts:
  • a tilting tilting element 1 is installed in the ground and with a cover plate 3 made of chrome steel and with a retractable housing 6 with a diaphragm 7 also made of a chrome steel plate Equipped with the same thickness.
  • the tilting element 1 and the housing 6 together form a locking element 12.
  • a tilting element 1 used without a housing 6 can also be referred to as a locking element 12.
  • a counter element 21 is installed in the lower end or lower edge of a door 26.
  • a notch 23 of the counter element 21 is provided for receiving the tilted-tilt element 1.
  • the notch 23 is covered with an angle profile 24, for example made of metal or plastic.
  • the surface of the angle profile 24 is equipped with a buffer area 25 of elastic material such as rubber.
  • FIG. 3 shows by way of example an embodiment without a buffer region 25.
  • the tilting element 1 is equipped with a first magnetic element 2 and the counter element 21 with a second magnetic element 22.
  • the second magnetic element 22 is a permanent magnet.
  • Figures 1 and 2 show the locking element 12 in a retractable position, wherein the cover plate 3 and the housing cover 7 of the locking element 1 flat on a bottom surface 13 and / or an upper edge of a substructure 10 of Housing 6 rest, so that the first magnetic element 2 recessed in the ground and the door 26 is movable.
  • the cover plate 3 is preferably fixedly connected to the first magnetic element 2 and rests with a over the first magnetic element 2 projecting edge region 4 on the bottom 13 and the substructure 10 on.
  • the protruding edge region 4 is arranged on that side of the cover plate 3, which is opposite to a tilting axis 5.
  • the housing wall 8 is preferably made of a piece of square tube, for example made of metal or plastic with holes for the tilting axis 5, which penetrates the housing wall 8 and the first magnetic element 2.
  • the tilting element 1 can be tilted about the tilting axis 5 at an angle of approximately 15 ° to 30 ° or preferably up to 45 ° or 60 ° and up to a maximum of 90 °.
  • An optional housing bottom 9 is attached to the lower end face of the housing wall 8 of.
  • the housing wall 8 and the optional housing bottom 9 together form the substructure 10 of the housing 6 of the locking element 12.
  • a hole for the cover plate 3 is cut out.
  • the panel 7 is connected, for example via several Schweisspvinkte with the upper end side of the substructure 10.
  • the panel 7 can be fastened with screws 11 on the bottom surface 13.
  • Figure 3 shows the locking member 12 in a locked position in which the door 26 found, that is stopped or locked.
  • the tilting element 1 engages in the counter-element 21 in the door 26 by magnetic attraction between the first 2 and the second 22 magnetic element.
  • the cover plate 3 firmly connected to the first magnetic element 2 engages in a notch 23 of the counter element 21.
  • the cover plate 3 of the tilting element 1 on the counter element 21 of the shorter leg 24a of the Winkelprof ⁇ ls 24 reinforces the notch 23 of the counter element 1 of the stopped door 26, and the longer leg 24b protects and holds the second magnetic element 22 of the counter element 21 in the door 26 firmly.
  • cover plate of the tilting element 4. projecting, resting on a bottom edge region of the cover plate

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Abstract

Dispositif pour immobiliser ou stopper une porte (26) relativement à une structure fixe par attraction magnétique. Dans une position d’immobilisation, un élément basculant (1) s’engage dans un contre-élément (21) par attraction magnétique entre le premier élément magnétique (2) et le second élément magnétique (22), et la porte (26) est stoppée et éventuellement bloquée, tandis que dans une position d’escamotage, l’élément basculant (1) est escamoté et la porte (26) est mobile. L’élément basculant (1) présente une plaque de recouvrement (3) en matériau robuste non magnétique, et il peut être monté aussi bien sur la structure fixe (plancher, mur ou plafond) que dans la porte (26).
EP20090712188 2008-02-20 2009-02-17 Dispositif pour immobiliser des portes par attraction magnétique Active EP2250334B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20090712188 EP2250334B1 (fr) 2008-02-20 2009-02-17 Dispositif pour immobiliser des portes par attraction magnétique

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP20080405052 EP2093358A1 (fr) 2008-02-20 2008-02-20 Dispositif de fixation de portes à l'aide d'une traction magnétique
EP20090712188 EP2250334B1 (fr) 2008-02-20 2009-02-17 Dispositif pour immobiliser des portes par attraction magnétique
PCT/CH2009/000066 WO2009103177A1 (fr) 2008-02-20 2009-02-17 Dispositif pour immobiliser des portes par attraction magnétique

Publications (2)

Publication Number Publication Date
EP2250334A1 true EP2250334A1 (fr) 2010-11-17
EP2250334B1 EP2250334B1 (fr) 2012-07-18

Family

ID=39844076

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20080405052 Withdrawn EP2093358A1 (fr) 2008-02-20 2008-02-20 Dispositif de fixation de portes à l'aide d'une traction magnétique
EP20090712188 Active EP2250334B1 (fr) 2008-02-20 2009-02-17 Dispositif pour immobiliser des portes par attraction magnétique

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP20080405052 Withdrawn EP2093358A1 (fr) 2008-02-20 2008-02-20 Dispositif de fixation de portes à l'aide d'une traction magnétique

Country Status (3)

Country Link
US (1) US8382169B2 (fr)
EP (2) EP2093358A1 (fr)
WO (1) WO2009103177A1 (fr)

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Also Published As

Publication number Publication date
US8382169B2 (en) 2013-02-26
WO2009103177A1 (fr) 2009-08-27
EP2250334B1 (fr) 2012-07-18
EP2093358A1 (fr) 2009-08-26
US20110049911A1 (en) 2011-03-03

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