EP1293630B1 - Fermeture magnétique - Google Patents

Fermeture magnétique Download PDF

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Publication number
EP1293630B1
EP1293630B1 EP02090316A EP02090316A EP1293630B1 EP 1293630 B1 EP1293630 B1 EP 1293630B1 EP 02090316 A EP02090316 A EP 02090316A EP 02090316 A EP02090316 A EP 02090316A EP 1293630 B1 EP1293630 B1 EP 1293630B1
Authority
EP
European Patent Office
Prior art keywords
permanent magnet
shaft
magnetic
lock according
magnetic lock
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.)
Expired - Lifetime
Application number
EP02090316A
Other languages
German (de)
English (en)
Other versions
EP1293630A1 (fr
Inventor
Jean-Pierre Welter
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.)
Peter Welter & Co KG GmbH
Original Assignee
Peter Welter & Co KG GmbH
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 Peter Welter & Co KG GmbH filed Critical Peter Welter & Co KG GmbH
Publication of EP1293630A1 publication Critical patent/EP1293630A1/fr
Application granted granted Critical
Publication of EP1293630B1 publication Critical patent/EP1293630B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
    • E05C19/16—Devices holding the wing by magnetic or electromagnetic attraction

Definitions

  • the invention relates to a magnetic closure, in particular for use as a furniture and housing fitting, with a consisting of a plastic, generally shaft-shaped housing with at least one held in this permanent magnet and optionally with a counterpart, according to the preamble of claims 1 and 4.
  • the doors of furniture and housings are increasingly closed not with lock and key, but with magnetic systems.
  • opening and closing eliminates the need to turn a key.
  • you open a door with magnetic lock the door must be solved only with little effort from its magnetic lock and then swung open in a known manner.
  • To close the door is pivoted in the closed position.
  • the closing movement ends with heavy noise when striking the counterpart on the permanent magnet.
  • the Maagnetsysteme used for this purpose are also called Magnetschnäpper.
  • the permanent magnet systems consisting of two steel pole plates with intermediate permanent magnet, held in an open housing or are exposed and are thus visible.
  • US 2 987 338 A shows a magnetic door lock in which the magnet is located in a housing and metallic pole pieces are arranged on its opposite side of the counterpart. When closing the door, the counterpart and the pole pieces hit each other with noise.
  • FR 1 273 435 A discloses a magnetic door lock in which a cylindrical magnet is enclosed by elements also of cylindrical shape made of soft iron or other high permeability metal. Their faces protrude slightly out of the door lock. When the door is closed, they strike the counterpart with noise.
  • the invention has the object, a magnetic closure in such a way that the magnetic attraction increases more slowly during the last part of the closing movement or slows down when opening than in the prior art.
  • the noise generated when the permanent magnet or the magnetic part impinges on the counterpart should be reduced or even avoided.
  • the appearance should be improved.
  • Permanent magnets made of a high-energy magnetic substance with attractive forces which are significantly higher than those of conventional hard ferrite-based permanent magnets, have been on the market for some time.
  • the high magnetic attraction also on removal of these high-energy magnetic material existing permanent magnets allows their application in a closed by a head shaft or in an open at his working end and there provided with a collar shaft.
  • the permanent magnet completely covering the head and the view of the permanent magnet restricting collar in addition to the desired good appearance.
  • the high magnetic attraction even at a distance leaves the larger distance to the counterpart resulting from the head or the collar and remains so great that it becomes sufficiently effective.
  • the larger end distance between the permanent magnet and counterpart even in the closed position leads to a gradual increase and decrease in the closing force during the last part of the route. This and the elasticity of the material forming the head and the collar virtually dampens the noise to zero.
  • the desired objectives are thus achieved with both embodiments of the invention.
  • this has a flat end face or has a lens shape.
  • the permanent magnet is inserted with some tension in the open end of the shaft and held at the working end by the head.
  • a ring is inserted in this end. The permanent magnet is applied to this ring and is thereby held in its desired position.
  • the collar is expedient axially slightly before.
  • the desired greater distance to the counterpart is achieved.
  • an axially projecting collar impedes the unwanted view of the free end of the permanent magnet.
  • the inventive permanent magnet consisting of a high-energy magnetic material contains a rare earth metal.
  • This is neodymium, which is expediently present as Nd 2 Fe 24 B, in the form of a neodymium iron boron compound.
  • the shaft may be axially slotted at two opposite locations to form spreader slots. This facilitates its insertion into holes in doors.
  • the elasticity of the plastic forming the shaft leads to a widening of the shaft in the bore and favors its secure hold.
  • Fig. 1 shows a magnetic closure without a counterpart with a shaft 12, the cavity 14 and the inserted therein in the permanent magnet 16.
  • the cavity 14 is closed at its working end by the head 18.
  • This sits on a neck 20 and has a curved, lens-shaped top 22. Ridges 24 sit on the shank. Because of their elasticity, they facilitate insertion into the bore of a door.
  • Fig. 2 shows the same embodiment in the side view, in addition to two spreader slots 26. These are offset by 180 ° in the shaft 12 opposite.
  • FIG. 3 shows an embodiment similar to the embodiment according to FIG. 1. However, the head 18 has a planar upper side 22.
  • Fig. 4 shows the second embodiment with open working end of the shaft 12. This embodiment has a neck 20 enclosing the collar 28 on. Axial is this something. In the open end of the shaft 12 is further a ring 30. This holds the permanent magnet 16 in its desired position.
  • FIG. 5 shows the embodiment according to FIG. 2, in addition to the counterpart 32.
  • FIG. 6 shows an embodiment with a head 18 similar to that according to FIGS. 1 and 2, but with a planar upper side 22. Instead of a counterpart 32, a shaft 12 with a permanent magnet 16 is opposed by a further shaft 12, likewise with a permanent magnet 16.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Burglar Alarm Systems (AREA)
  • Valve Device For Special Equipments (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Claims (11)

  1. Verrouillage magnétique, notamment pour l'utilisation en fonction d'armature d'un meuble ou d'un boîtier, avec un boîtier en matière plastique, généralement en forme de tige avec au moins un aimant permanent maintenu dans ce dernier et avec un pendant, l'aimant permanent (16) étant en un matériau magnétique à grande énergie et la tige (12) étant fermée sur son extrémité fonctionnelle par une tête (18) en un matériau élastique, caractérisé en ce que dans la position de fermeture, la tête (18) fermée donne naissance à une distance finale ente l'aimant permanent (16) et le pendant (32) en butée avec la tête (18).
  2. Verrouillage magnétique selon la revendication 2, caractérisé en ce que la tête (18) a une surface frontale plane.
  3. Verrouillage magnétique selon la revendication 1, caractérisé en ce que la tête (18) a la forme d'une lentille.
  4. Verrouillage magnétique, notamment pour l'utilisation en fonction d'armature d'un meuble ou d'un boîtier, avec un boîtier en matière plastique en forme de tige, avec au moins un aimant permanent maintenu dans ce dernier et avec un pendant, l'aimant permanent (16) étant en un matériau magnétique à grande énergie, la tige (12) étant ouverte sur son extrémité fonctionnelle et comportant une collerette (28) en un matériau élastique, caractérisé en ce que dans la position de fermeture, la collerette donne naissance à une distance finale ente l'aimant permanent (16) et le pendant (32) en butée avec la collerette (28).
  5. Verrouillage magnétique selon la revendication 14, caractérisé en ce qu'une bague (30) est insérée dans l'extrémité ouverte de la tige (12) et l'aimant permanent (16) s'appuie sur cette dernière et est maintenu de ce fait.
  6. Verrouillage magnétique selon la revendication 4, caractérisé en ce que la collerette (28) saillit en direction axiale.
  7. Verrouillage magnétique selon la revendication 1 à 6, caractérisé en ce que la matériau magnétique contient un métal des terres rares.
  8. Verrouillage magnétique selon la revendication 7, caractérisé en ce que le matériau magnétique contient du néodyme.
  9. Verrouillage magnétique selon la revendication 8, caractérisé en ce que le matériau magnétique contient une combinaison néodyme/fer/bore Nd2Fe24B.
  10. Verrouillage magnétique selon la revendication 1 ou 4, caractérisé en ce que la tige (12) est fendue en deux endroits opposés en direction axiale, en formant une fente d'expansion (26).
  11. Verrouillage magnétique selon la revendication 1 ou 4, caractérisé en ce que la tige (12) comporte une bague (30) sur son extrémité fonctionnelle.
EP02090316A 2001-09-12 2002-09-04 Fermeture magnétique Expired - Lifetime EP1293630B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20115046U 2001-09-12
DE20115046U DE20115046U1 (de) 2001-09-12 2001-09-12 Magnetverschluß

Publications (2)

Publication Number Publication Date
EP1293630A1 EP1293630A1 (fr) 2003-03-19
EP1293630B1 true EP1293630B1 (fr) 2007-01-31

Family

ID=7961615

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02090316A Expired - Lifetime EP1293630B1 (fr) 2001-09-12 2002-09-04 Fermeture magnétique

Country Status (4)

Country Link
EP (1) EP1293630B1 (fr)
AT (1) ATE353115T1 (fr)
DE (2) DE20115046U1 (fr)
ES (1) ES2280485T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008013395U1 (de) * 2008-10-09 2010-03-25 Paul Hettich Gmbh & Co. Kg Endlagenpositioniereinrichtung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2987338A (en) * 1958-03-03 1961-06-06 Nat Lock Co Magnetic door catch
FR1273435A (fr) * 1960-08-31 1961-10-13 Perfectionnements aux dispositifs d'aimants permanents du genre verrous magnétiques et analogues
FR1298999A (fr) * 1961-06-06 1962-07-20 Perfectionnements apportés aux fermetures magnétiques

Also Published As

Publication number Publication date
EP1293630A1 (fr) 2003-03-19
ATE353115T1 (de) 2007-02-15
ES2280485T3 (es) 2007-09-16
DE50209403D1 (de) 2007-03-22
DE20115046U1 (de) 2003-02-06

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