EP0479095A1 - Dispositif électromagnétique de verrouillage de porte - Google Patents

Dispositif électromagnétique de verrouillage de porte Download PDF

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Publication number
EP0479095A1
EP0479095A1 EP91116208A EP91116208A EP0479095A1 EP 0479095 A1 EP0479095 A1 EP 0479095A1 EP 91116208 A EP91116208 A EP 91116208A EP 91116208 A EP91116208 A EP 91116208A EP 0479095 A1 EP0479095 A1 EP 0479095A1
Authority
EP
European Patent Office
Prior art keywords
rotary latch
rocker
door lock
lever
lock according
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
EP91116208A
Other languages
German (de)
English (en)
Other versions
EP0479095B1 (fr
Inventor
Ernst-Christian Braetsch
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.)
C.N.EPO REG.92;(ORA) RAHRBACH GMBH
Original Assignee
Rahrbach 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 Rahrbach GmbH filed Critical Rahrbach GmbH
Publication of EP0479095A1 publication Critical patent/EP0479095A1/fr
Application granted granted Critical
Publication of EP0479095B1 publication Critical patent/EP0479095B1/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
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
    • E05B47/0607—Controlling mechanically-operated bolts by electro-magnetically-operated detents the detent moving pivotally or rotatively
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/0086—Toggle levers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
    • E05B47/0003—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets having a movable core
    • E05B47/0004—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets having a movable core said core being linearly movable
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C3/00—Fastening devices with bolts moving pivotally or rotatively
    • E05C3/12—Fastening devices with bolts moving pivotally or rotatively with latching action
    • E05C3/16—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch
    • E05C3/22—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled
    • E05C3/24—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled in the form of a bifurcated member

Definitions

  • the invention relates to an electromanetic door lock for machines with a rotary latch, which comprises a door-side block, and a pivot lever blocking the rotary latch, which is locked by an electromagnetically actuated rocker.
  • Electromagnetic door locks of the type mentioned in the generic term have been used in washing machines, dishwashers, centrifuges and similar devices in which any danger to the operator could arise from the interior. Most of these machines have a large, circumferential seal, so that the catch is exposed to considerable pressure.
  • the object of the invention is to provide an inexpensive locking device for low voltage, which is also "finger-safe" according to the VDE guidelines. This object is achieved with the means specified in the claim.
  • Fig. 1, 1 denotes the housing base plate, in which a main bearing pin 2 for the rotary latch 3, a bearing pin 4 for the pivot lever 5 and a bearing pin 6 for the rocker 7 are fastened.
  • An electromagnet 8 is connected to the left end of the rocker 7 via its armature 8a.
  • query levers 9, 10 are mounted on the bolt 2.
  • a spring indicated by arrow 11 serves to turn these levers clockwise.
  • the rotary latch 3 is shown in the closed state. Its claw encompasses the door-side block 12 indicated by dash-dotted lines.
  • the lower left end of the rotary latch has a recess 3a which bears against a roller 13. This is mounted on the pivot lever 5 via a pin 14.
  • the lever carries a further pin 15 with a smaller roller 16. This roller abuts the right end of the rocker 7, as a result of which the pivot lever 5 and thus also the rotary latch 3 are blocked.
  • the electromagnet 8 When the electromagnet 8 is energized, it pulls its armature 8a and thereby moves the rocker 7 clockwise. The right locking edge 7a of the rocker 7 runs down over the roller 16, whereby the blockage of the lever 5 is released is. If a pulling force is now exerted on the rotary latch 3 via the block 12, the projection 3b presses the pivot lever 5 to the left so that the rotary latch can open.
  • the query levers 9, 10 pivot upward, as a result of which they block the pivot lever 5 in the position typical for the unlocking.
  • Fig. 2 shows the position of all parts with the door open.
  • a leg spring 17 ensures that the pivot lever 5 bears against the query levers 9, 10.
  • FIG. 3 the complete door lock is shown in plan view. An almost mirror image of the same housing cover plate is placed on the base plate 1, which has corresponding holes at least for the bearing bolts 2 and 4.
  • a microswitch 19 can be seen, which is fastened with a screw 20.
  • This microswitch to be installed from the outside is actuated by a bracket 21 shown in FIGS. 1 and 2, which is connected to the pivot lever 5.
  • 22, 23, 24 through holes are designated, which are used to attach the housing to the door frame.
  • a housing opening 25 provides a view of the rotary latch 3 and the query levers 9, 10. Actuating surfaces 9a, 10a are formed on these levers.
  • the block 12 is held by two fastening tabs which hit the surfaces 9a, 10a when the door is closed, while at the same time the block 12 presses the catch 3 downwards.
  • the query levers 9, 10 release the pivot lever 5 so that it can pivot counterclockwise and can lock the rotary latch 3 via the roller 13.
  • the microswitch is only actuated when the pivot lever 5 assumes the position shown in FIG. 1. In this position, the lever 5 can then be blocked again by the rocker 7, this rocker being tilted into the locked position by the force of a weak spring indicated by the arrow 26.
  • the query levers mounted to the left and right of the rotary latch have the task of outwitting the door lock to prevent. To lock the rotary latch and to actuate the microswitch, it is not sufficient to push the rotary latch down with the door open. It should therefore be prevented that the machine - wanted or unwanted - can start with the door open.
  • the microswitch is only activated at the moment when the swivel lever has locked the rotary latch. Conversely, the microswitch interrupts when opening before the rotary latch is released.
  • the magnetic force required to trigger the rocker 7 is very low because its locking edge 7a can run over the smooth-running roller 16.
  • the longitudinal axis AB of the rocker 7 encloses an angle of just over 90 ° with the longitudinal axis CD of the pivoting lever 5. It is thereby achieved that, in the event of a tensile force on the rotary latch 3, the pivot lever 5 remains in the stable dead position despite the forces transmitted to it, because no torque is transmitted to the rocker 7. From this locked position, the release force of the magnet is so low that a low-voltage magnet, e.g. for 12 volts, can be used. This makes it extremely easy to comply with the safety regulations, especially for devices with moisture release.
  • an emergency release element 27 shown here as a pulling element, which acts on the rocker 7. It would be even more inconspicuous to make a small hole in the housing on the magnetic side of the rocker 7, through which the initiate can insert a pin.
  • rocker 7 is constructed so that the center of mass coincides with the axis of rotation (bearing pin 6). This prevents the rocker from being knocked out or unwanted from the locked position as a result of impacts or imbalances in the centrifuge or centrifuge and the door from opening when the machine is running.
  • the electromagnetic door lock described can be used with great gain in operating safety for all devices and machines that have rotating parts or work with dangerous liquids and vapors. These are preferably spin dryers and washing machines and dishwashers, as are used in industry or in the service sector.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Washing And Drying Of Tableware (AREA)
EP91116208A 1990-10-02 1991-09-24 Dispositif électromagnétique de verrouillage de porte Expired - Lifetime EP0479095B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4031077 1990-10-02
DE4031077A DE4031077A1 (de) 1990-10-02 1990-10-02 Elektromagnetische tuerverriegelung

Publications (2)

Publication Number Publication Date
EP0479095A1 true EP0479095A1 (fr) 1992-04-08
EP0479095B1 EP0479095B1 (fr) 1994-12-28

Family

ID=6415390

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91116208A Expired - Lifetime EP0479095B1 (fr) 1990-10-02 1991-09-24 Dispositif électromagnétique de verrouillage de porte

Country Status (2)

Country Link
EP (1) EP0479095B1 (fr)
DE (2) DE4031077A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0579954A1 (fr) * 1992-06-16 1994-01-26 Fritz Fuss GmbH & Co. Dispositif de verrouillage et déverrouillage pour serrure de porte anti-panique
EP1654429A2 (fr) * 2003-07-10 2006-05-10 Southco, Inc. Verrou de cliquet rotatif
FR2922933A1 (fr) * 2007-10-26 2009-05-01 Fermetures Groom Soc Par Actio Dispositif de verrouillage d'elements ouvrants et fenetre comprenant un tel dispositif.
DE102013006329A1 (de) 2013-04-11 2013-12-19 Daimler Ag Vorrichtung zum Verriegeln und Entriegeln eines Verschlusselementes
EP2792827A3 (fr) * 2013-04-15 2016-03-23 GEZE GmbH Verrouillage de battant de porte ou de fenêtre

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19617050A1 (de) * 1996-04-29 1997-11-06 Rahrbach Gmbh Türverschluß für Geräte
DE102004008348B3 (de) † 2004-02-22 2005-10-20 Fuss Fritz Gmbh & Co Sperr-/Freigabevorrichutng für eine Schwenkfalle eines Türöffners
WO2017059911A1 (fr) * 2015-10-08 2017-04-13 Arcelik Anonim Sirketi Lave-linge ayant un mécanisme de verrouillage de porte amélioré
EP3348755B1 (fr) 2017-01-16 2019-12-04 Kendrion Kuhnke Automation GmbH Dispositif de verrouillage de porte, en particulier dispositif de verrouillage de porte électromagnétique
IT201700038705A1 (it) * 2017-04-07 2018-10-07 Elettrotecnica Rold Srl Dispositivo per la chiusura e apertura di sportelli, in particolare di sportelli di elettrodomestici quali asciugatrici, lavatrici o simili
EP3686384B1 (fr) 2019-01-28 2023-07-12 Kendrion Kuhnke Automation GmbH Dispositif de verrouillage pour une porte, en particulier d'un lave-linge

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH589207A5 (en) * 1975-07-18 1977-06-30 Favre Jacques Child proof magnetic door latch - has swinging magnetic latch arm released by magnetic repulsion of applied magnetic key
US4132439A (en) * 1975-11-21 1979-01-02 Access Control Systems Pty. Ltd. Door lock apparatus
US4390197A (en) * 1981-09-28 1983-06-28 Scovill Inc. Electrically controlled latch
EP0160470A2 (fr) * 1984-04-27 1985-11-06 International Limited Uniqey Serrure
DE3546241A1 (de) * 1985-12-28 1987-07-02 Mauer Gmbh & Co Kg Elektromagnetisch gesteuertes wertbehaelterschloss
EP0300840A1 (fr) * 1987-04-29 1989-01-25 Rockwell Automotive Body Systems-France En Abrege:Rockwell Abs-France Dispositif de condamnation anti-vol et anti-agression de l'actionnement d'une serrure pour porte, et serrure associée à ce dispositif
AU2113588A (en) * 1987-08-20 1989-02-23 Graham John Flynn Lock
GB2212548A (en) * 1987-11-17 1989-07-26 Walter Wilson Hugh Clarke Electrically released locking device
DE3801672A1 (de) * 1988-01-21 1989-08-03 Martin Reiber Tuer mit einem schloss

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH589207A5 (en) * 1975-07-18 1977-06-30 Favre Jacques Child proof magnetic door latch - has swinging magnetic latch arm released by magnetic repulsion of applied magnetic key
US4132439A (en) * 1975-11-21 1979-01-02 Access Control Systems Pty. Ltd. Door lock apparatus
US4390197A (en) * 1981-09-28 1983-06-28 Scovill Inc. Electrically controlled latch
EP0160470A2 (fr) * 1984-04-27 1985-11-06 International Limited Uniqey Serrure
DE3546241A1 (de) * 1985-12-28 1987-07-02 Mauer Gmbh & Co Kg Elektromagnetisch gesteuertes wertbehaelterschloss
EP0300840A1 (fr) * 1987-04-29 1989-01-25 Rockwell Automotive Body Systems-France En Abrege:Rockwell Abs-France Dispositif de condamnation anti-vol et anti-agression de l'actionnement d'une serrure pour porte, et serrure associée à ce dispositif
AU2113588A (en) * 1987-08-20 1989-02-23 Graham John Flynn Lock
GB2212548A (en) * 1987-11-17 1989-07-26 Walter Wilson Hugh Clarke Electrically released locking device
DE3801672A1 (de) * 1988-01-21 1989-08-03 Martin Reiber Tuer mit einem schloss

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0579954A1 (fr) * 1992-06-16 1994-01-26 Fritz Fuss GmbH & Co. Dispositif de verrouillage et déverrouillage pour serrure de porte anti-panique
EP1654429A2 (fr) * 2003-07-10 2006-05-10 Southco, Inc. Verrou de cliquet rotatif
EP1654429A4 (fr) * 2003-07-10 2012-08-15 Southco Verrou de cliquet rotatif
EP2669454A3 (fr) * 2003-07-10 2017-11-29 Southco, Inc. Verrou à cliquet rotatif
EP2669455A3 (fr) * 2003-07-10 2017-11-29 Southco, Inc. Verrou à cliquet rotatif
FR2922933A1 (fr) * 2007-10-26 2009-05-01 Fermetures Groom Soc Par Actio Dispositif de verrouillage d'elements ouvrants et fenetre comprenant un tel dispositif.
DE102013006329A1 (de) 2013-04-11 2013-12-19 Daimler Ag Vorrichtung zum Verriegeln und Entriegeln eines Verschlusselementes
EP2792827A3 (fr) * 2013-04-15 2016-03-23 GEZE GmbH Verrouillage de battant de porte ou de fenêtre
DE102013206695B4 (de) 2013-04-15 2019-12-05 Geze Gmbh Verriegelung für einen Flügel einer Tür oder eines Fensters

Also Published As

Publication number Publication date
EP0479095B1 (fr) 1994-12-28
DE59104052D1 (de) 1995-02-09
DE4031077A1 (de) 1992-04-09

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