EP1333230B1 - Door latch for a home appliance - Google Patents

Door latch for a home appliance Download PDF

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Publication number
EP1333230B1
EP1333230B1 EP03000238A EP03000238A EP1333230B1 EP 1333230 B1 EP1333230 B1 EP 1333230B1 EP 03000238 A EP03000238 A EP 03000238A EP 03000238 A EP03000238 A EP 03000238A EP 1333230 B1 EP1333230 B1 EP 1333230B1
Authority
EP
European Patent Office
Prior art keywords
door lock
door
force
hook
spring
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
EP03000238A
Other languages
German (de)
French (fr)
Other versions
EP1333230A3 (en
EP1333230A2 (en
Inventor
Joachim Render
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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Filing date
Publication date
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Publication of EP1333230A2 publication Critical patent/EP1333230A2/en
Publication of EP1333230A3 publication Critical patent/EP1333230A3/en
Application granted granted Critical
Publication of EP1333230B1 publication Critical patent/EP1333230B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/10Bolts of locks or night latches
    • E05B15/102Bolts having movable elements
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/10Bolts of locks or night latches
    • E05B15/101Spring-retracted bolts
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/06Controlling mechanically-operated bolts by electro-magnetically-operated detents
    • E05B47/0603Controlling mechanically-operated bolts by electro-magnetically-operated detents the detent moving rectilinearly
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05CBOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C3/00Fastening devices with bolts moving pivotally or rotatively
    • E05C3/02Fastening devices with bolts moving pivotally or rotatively without latching action
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details
    • F24C15/02Doors specially adapted for stoves or ranges
    • F24C15/022Latches
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/04Spring arrangements in locks
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00Accessories in connection with locks
    • E05B17/20Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
    • E05B17/2007Securing, deadlocking or "dogging" the bolt in the fastening position
    • E05B17/203Securing, deadlocking or "dogging" the bolt in the fastening position not following the movement of the bolt
    • E05B17/2038Securing, deadlocking or "dogging" the bolt in the fastening position not following the movement of the bolt moving rectilinearly

Definitions

  • the invention relates to a door lock referred to in the preamble of claim 1 Art.
  • a door lock of the type in question is, for example, from the order catalog " Elektromechanik GmbH-, Schutz- und Steuersammlung für 2000”, pages 253 and 254, from E-T-A Electrotechnical apparatus GmbH, 90518 Altdorf known.
  • the one described there Locking system numbered 6140 has one in a closed position in one Receiving a door engaging hook as a locking pin, wherein the Locking system in the installed state, for example, on a body and the Recording is arranged as a latch on the door of a household appliance.
  • the catch is rotatably supported on the rest of the locking system and is located with the door open in an open position. Further, a projection is formed as a stop on the hook.
  • a disadvantage of the known Door lock is that their functioning due to tolerances of the relative position of Locking system and recording is impaired or impossible. Tolerances can for example, by manufacturing or assembly-related deviations in the dimensions door and / or body of the household appliance or of the locking system and recording be caused. Greater tolerances can also cause damage to the Door lock lead to their complete uselessness.
  • the invention thus provides the problem of creating a door lock whose function even with unusually large tolerances of the dimensions and / or the spatial arrangement the components used is guaranteed.
  • a door lock with a tolerance compensation is already known from DE 197 38 508 C1 known.
  • a locking bolt provided as a closing cam which in one by means of a Carrier device attached to the body of the furnace receiving device as a latch is insertable.
  • the locking bolt of the Recording device locked or released.
  • the Receiving device movably arranged on the carrier device.
  • a disadvantage of this Solution is that the moving mass is large, since the entire recording device relative to Carrier device is moved.
  • the components of the door lock such as the spring element for Compensation of the forces acting on the receiving device, with regard to the at to interpret the movement of large mass occurring forces, which are components with large Dimensions and / or the use of high quality materials requires.
  • this tolerance compensation in which the entire receiving device movable is, a larger footprint for the door lock.
  • the door lock it is possible to make the door lock suitable for a rip-open door.
  • the Locking block is securable by a second force-generating means in the closed position. In this way, a secure locking of the door is ensured, in particular for Household appliances with a high risk potential, such as stoves or ovens with pyrolytic self-cleaning, is required.
  • the second force-generating means is a engageable in a recess of the locking pin bolt.
  • the second force-generating means is particularly simple and inexpensive realized.
  • the first force-generating means is a spring, with its one free end on the locking bolt and is held with its other free end to a rest of the household appliance. To this Way, the first force-generating means is easy and inexpensive to produce, as springs Standard components are.
  • the type, material and size of the spring as the first force-generating means in wide Borders selectable.
  • the spring is a coil spring.
  • Stop is a thigh spring.
  • the door lock on particularly simple Way can be formed with a tolerance compensation.
  • Fig. 1 is a first embodiment of a door lock 2 according to the invention shown.
  • the door lock 2 is part of a part only and purely schematically illustrated stove, a door 4 with a receptacle 6 as Lock latch and a body with a hook 8 as a locking block.
  • the door 4 is over a hinge 10 connected to the body, so that the door 4 in a closed state covering the baking muffle opening and closing the baking muffle of the cooker.
  • the hook 8 is via a pin 12 parallel to the plane of the sheet rotatably supported on the body.
  • a Leg spring 14 is designed as a spring-trained stop with one leg on the Door 4 facing arm of the hook 8 is supported.
  • the other leg of the leg spring 14 extends as a stop substantially in the same direction as that at the free end of the door 4 facing arm formed projection and protrudes in this direction over the Lead out.
  • a coil spring 16 is held as a first force-generating means, the other free end is held on the carcass.
  • the coil spring 16 is biased to train, so that this promotes the rotation of the hook 8 in a clockwise direction.
  • the rotation of the hook 8 in Clockwise is limited by a pin 18 as a stop for the hook 8.
  • the bolt 22 is also schematically along one shown guide 24 between an unlocked position and a locking position movable back and forth, wherein the bolt 22 in the locking position in the recess 20th engages and thus determines the hook 8 in a closed position.
  • the bolt 22 and the Guide 24 thus act together as a second force-generating means.
  • FIG. 1 shows the door lock 2 according to the invention in one Opening position of the hook 8, in which the door 4 does not close the baking muffle of the cooker.
  • the hook 8 is, promoted by the restoring force of the coil spring 16, with the door 4th remote arm on the pin 18 at.
  • the leg spring 14 is relaxed and the hook 8 is not engaged with the receptacle 6 of the door 4.
  • the bolt 22 is located in the Unlocked.
  • the door 4 rests on the body of the cooker, see Fig. 3.
  • the Hook 8 engages with the projection in the receptacle 6 of the door 4 a.
  • the pressure force of the door 4 acts against the leg spring 14 of the restoring force of the Helical spring 16 against, so that the hook 8 of the door lock 2 in the Closed position remains.
  • the pressure force of the door 4, for example, to another of Carcass and door 4 are held and produced between these acting spring.
  • Fig. 3 are the recess 20 and in its unlocked position represented bolt 22 opposite, so that the bolt 22 along the guide 24 in his Locking position in which the bolt 22 engages in the recess 20, is movable.
  • the bolt 22 is in the locking position, not shown, are body and Door 4 locked together by means of the door lock 2. An opening of the door 4 and thus the Baking muffle is not possible in the locked position.
  • Fig. 4 shows the arrangement of Fig. 3 in plan view.
  • Figs. 6 and 7 is a second embodiment of an inventive Door lock with the door 4 closed.
  • Stop on one formed on the hook 8 and extending along the hook 8 Guide 25 sliding carriage 26 is used.
  • the movement of the carriage 26 in the direction of Door 4 is in the region of the door 4 facing the end of the guide 25 by a on the Hook 8 trained further projection limited.
  • a preloaded on pressure bearing spring 28 is with its one free end on the carriage 26 and with their other free end one formed on the hook 8 heel held.
  • the carriage 26 by the restoring force of Bearing spring 28 is pressed against the formed on the hook 8 further projection.
  • the overstroke of the door 4 is this, analogous to the first embodiment, through which along the guide 25 and against the restoring force of the bearing spring 28 of the door 4 away moving carriage 26 compensated.
  • a third embodiment is shown in FIG. In this embodiment, as Stop a used around a pin 8 formed on the pin 29 rotatable lever 30.
  • the lever 30 has a longer arm as a stop for the door 4 and a shorter arm.
  • a bearing spring 28 is similar to the previous embodiment with their a free end to the longer arm of the lever 30 and with its other free end one formed on the hook 8 heel held.
  • the movement of the longer arm of the Lever 30 is in the direction of the door 4 by a hook 8 formed on the further projection limited forms the abutment for the shorter arm of the lever 30.
  • the shorter arm of the Lever 30 formed by the restoring force of the bearing spring 28 against the hook 8 pressed another projection.
  • the pin 29 against the Clockwise and against the restoring force of the bearing spring 28 of the door 4 turning away longer arm of the lever 30 compensated.
  • FIG. 9 shows a fourth exemplary embodiment of the door lock 2 according to the invention shown.
  • the hook 8 is formed as a plastic injection-molded part, during its production of the Metal strip 32 has been inserted into the injection mold. Which is essentially vertical to the longitudinal extent of the hook 8 extending second leg is as a stop for the Door 4 formed.
  • the door 4 is located on the second leg of the metal strip 32, wherein the second leg of the metal strip 32nd is essentially relaxed.
  • the second leg of the Metal strip 32 similar to the previous embodiments, stretched and the Over-lift compensated.
  • the aforementioned embodiments ensure even with unusually large tolerances the dimensions of the components or their relative position to each other the function of Furthermore, damage or destruction of the Tolerance compensation or the door lock 2 due to unusually large tolerances prevented.
  • the first and fourth embodiments are particularly simple and therefore cost-effective possibilities of the door lock 2 according to the invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Ovens (AREA)
  • Lock And Its Accessories (AREA)
  • Cookers (AREA)
  • Washing And Drying Of Tableware (AREA)

Abstract

The door lock (2) has a latch bolt and a closing block held on opposite components of the oven. The block can be moved to an open position by a power creating device in the form of a bolt (22). It has a stop for the latch bolt, which can move the block to the closed position. The stop is sprung, in the form of a helical torsion spring (14) and a metal strip.

Description

Die Erfindung betrifft eine Türverriegelung der im Oberbegriff des Anspruchs 1 genannten Art.The invention relates to a door lock referred to in the preamble of claim 1 Art.

Eine Türverriegelung der betreffenden Art ist beispielsweise aus dem Bestellkatalog " Elektromechanik Schalt-, Schutz- und Steuergeräte 2000", Seiten 253 und 254, der Firma E-T-A Elektrotechnische Apparate GmbH, 90518 Altdorf bekannt. Das dort beschriebene Verriegelungssystem mit der Nummer 6140 weist einen in einer Schließstellung in eine Aufnahme einer Tür eingreifenden Haken als Schließkloben auf, wobei das Verriegelungssystem in dem eingebauten Zustand beispielsweise an einem Korpus und die Aufnahme als Schlossfalle an der Tür eines Haushaltgeräts angeordnet ist. Der Haken ist drehbar an dem Rest des Verriegelungssystems gehaltert und befindet sich bei geöffneter Tür in einer Öffnungsstellung. Ferner ist an dem Haken ein Vorsprung als Anschlag ausgebildet. Bei dem Schließen der Tür drückt diese gegen den Vorsprung, wodurch der Haken von der Öffnungsstellung in die Schließstellung überführt wird. Ein Nachteil der bekannten Türverriegelung ist, dass deren Funktionieren aufgrund von Toleranzen der relativen Lage von Verriegelungssystem und Aufnahme beeinträchtigt oder unmöglich ist. Toleranzen können beispielsweise durch fertigungs- bzw. montagebedingte Abweichungen in den Abmessungen von Tür und/oder Korpus des Haushaltgeräts bzw. von Verriegelungssystem und Aufnahme hervorgerufen werden. Größere Toleranzen können darüber hinaus zu Beschädigungen an der Türverriegelung bis zu deren vollständigen Unbrauchbarkeit führen.A door lock of the type in question is, for example, from the order catalog " Elektromechanik Schalt-, Schutz- und Steuergeräte 2000 ", pages 253 and 254, from E-T-A Electrotechnical apparatus GmbH, 90518 Altdorf known. The one described there Locking system numbered 6140 has one in a closed position in one Receiving a door engaging hook as a locking pin, wherein the Locking system in the installed state, for example, on a body and the Recording is arranged as a latch on the door of a household appliance. The catch is rotatably supported on the rest of the locking system and is located with the door open in an open position. Further, a projection is formed as a stop on the hook. When closing the door, this pushes against the projection, causing the hook of the Open position is transferred to the closed position. A disadvantage of the known Door lock is that their functioning due to tolerances of the relative position of Locking system and recording is impaired or impossible. Tolerances can for example, by manufacturing or assembly-related deviations in the dimensions door and / or body of the household appliance or of the locking system and recording be caused. Greater tolerances can also cause damage to the Door lock lead to their complete uselessness.

Der Erfindung stellt sich somit das Problem eine Türverriegelung zu schaffen, deren Funktion auch bei unüblich großen Toleranzen der Abmessungen und/oder der räumlichen Anordnung der verwendeten Bauteile gewährleistet ist.The invention thus provides the problem of creating a door lock whose function even with unusually large tolerances of the dimensions and / or the spatial arrangement the components used is guaranteed.

Erfindungsgemäß wird dieses Problem durch eine Türverriegelung mit den Merkmalen des Patentanspruchs 1 oder 2 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden Unteransprüchen.According to the invention, this problem is solved by a door lock with the features of Patent claim 1 or 2 solved. Advantageous embodiments and further developments of Invention will become apparent from the following subclaims.

Eine Türverriegelung mit einem Toleranzausgleich ist aus der DE 197 38 508 C1 bereits bekannt. Bei dem Gegenstand dieser Schrift ist zum Verriegeln einer Ofenmuffeltür an dieser ein Verriegelungsbolzen als Schließkloben vorgesehen, der in eine mittels einer Trägereinrichtung an dem Korpus des Ofens befestigten Aufnahmeeinrichtung als Schlossfalle einführbar ist. In Abhängigkeit von einem Steuersignal ist der Verriegelungsbolzen von der Aufnahmeeinrichtung gesperrt oder freigegeben. Um Toleranzen der relativen Position von Verriegelungsbolzen und Aufnahmeeinrichtung ausgleichen zu können, ist die Aufnahmeeinrichtung auf der Trägereinrichtung beweglich angeordnet. Nachteilig bei dieser Lösung ist, dass die bewegte Masse groß ist, da die gesamte Aufnahmeeinrichtung relativ zur Trägereinrichtung bewegt wird. Aufgrund dessen ist es bei dem bekannten Toleranzausgleich erforderlich, die Bauteile der Türverriegelung, wie beispielsweise das Federelement zur Kompensierung der auf die Aufnahmeeinrichtung einwirkenden Kräfte, mit Rücksicht auf die bei der Bewegung der großen Masse auftretenden Kräfte auszulegen, was Bauteile mit großen Abmessungen und/oder den Einsatz qualitativ hochwertiger Materialien erfordert. Darüber hinaus bedingt dieser Toleranzausgleich, bei dem die gesamte Aufnahmeeinrichtung beweglich ist, einen größeren Platzbedarf für die Türverriegelung.A door lock with a tolerance compensation is already known from DE 197 38 508 C1 known. In the subject of this document is for locking a furnace muffle door at this a locking bolt provided as a closing cam, which in one by means of a Carrier device attached to the body of the furnace receiving device as a latch is insertable. In response to a control signal is the locking bolt of the Recording device locked or released. To tolerances of the relative position of To be able to compensate locking bolt and receiving device is the Receiving device movably arranged on the carrier device. A disadvantage of this Solution is that the moving mass is large, since the entire recording device relative to Carrier device is moved. Because of this, it is in the known tolerance compensation required, the components of the door lock, such as the spring element for Compensation of the forces acting on the receiving device, with regard to the at to interpret the movement of large mass occurring forces, which are components with large Dimensions and / or the use of high quality materials requires. About that In addition, this tolerance compensation, in which the entire receiving device movable is, a larger footprint for the door lock.

Die mit der Erfindung erreichbaren Vorteile bestehen neben dem Funktionieren der Türverriegelung auch bei unüblich großen Toleranzen der Abmessungen und/oder der räumlichen Anordnung der verwendeten Bauteile in einer raumsparenden Ausgestaltung des Toleranzausgleichs, da es nicht erforderlich ist, die Schlossfalle bzw. den Schließkloben als Ganzes zu bewegen. Somit kann der eingesparte Raum für andere Bauteile verwendet werden bzw. ist ein kompakteres Haushaltgerät ermöglicht. Ferner ist es nicht erforderlich, besonders hochwertige Materialien für die Bauteile des Toleranzausgleichs zu verwenden, da die bewegten Massen und die damit einhergehenden Kräfte geringer sind, so dass die Türverriegelung in deren Gesamtheit und der Toleranzausgleich im Besonderen einfach und kostengünstig herstellbar ist. Hierbei ist es unerheblich, ob der Anschlag selbst oder dessen Lagerung federnd ausgebildet ist, da beides Ausgestaltungen derselben technischen Lösung sind.The achievable with the invention advantages exist in addition to the functioning of the Door lock even with unusually large tolerances of the dimensions and / or the spatial arrangement of the components used in a space-saving design of the Tolerance compensation, since it is not necessary, the latch or the locking pin as Whole to move. Thus, the space saved for other components can be used or is a more compact household appliance allows. Furthermore, it is not necessary, especially to use high quality materials for the components of the tolerance compensation, since the moving masses and the associated forces are lower, so that the Door lock in its entirety and the tolerance compensation in particular easy and is inexpensive to produce. It is irrelevant whether the attack itself or its Bearing is resilient, since both embodiments of the same technical solution are.

Grundsätzlich ist es möglich, die Türverriegelung für eine Aufreißtür geeignet auszubilden. Eine vorteilhafte Weiterbildung der erfindungsgemäßen Lehre sieht jedoch vor, dass der Schließkloben durch ein zweites krafterzeugendes Mittel in der Schließstellung sicherbar ist. Auf diese Weise ist eine sichere Verriegelung der Tür gewährleistet, die insbesondere für Haushaltgeräte mit einem hohen Gefahrenpotential, wie beispielsweise Herde oder Backöfen mit pyrolytischer Selbstreinigung, erforderlich ist.In principle, it is possible to make the door lock suitable for a rip-open door. A However, advantageous development of the teaching of the invention provides that the Locking block is securable by a second force-generating means in the closed position. In this way, a secure locking of the door is ensured, in particular for Household appliances with a high risk potential, such as stoves or ovens with pyrolytic self-cleaning, is required.

Eine vorteilhafte Weiterbildung der vorgenannten Ausführungsform ist, dass das zweite krafterzeugende Mittel ein in eine Ausnehmung des Schließklobens eingreifbarer Bolzen ist. Hierdurch ist das zweite krafterzeugende Mittel besonders einfach und kostengünstig verwirklicht.An advantageous development of the aforementioned embodiment is that the second force-generating means is a engageable in a recess of the locking pin bolt. As a result, the second force-generating means is particularly simple and inexpensive realized.

Eine weitere vorteilhafte Weiterbildung der erfindungsgemäßen Lehre sieht vor, dass das erste krafterzeugende Mittel eine Feder ist, die mit ihrem einen freien Ende an dem Schließkloben und mit ihrem anderen freien Ende an einem Rest des Haushaltgeräts gehaltert ist. Auf diese Weise ist das erste krafterzeugende Mittel einfach und kostengünstig herstellbar, da Federn Standardbauteile sind. A further advantageous development of the teaching according to the invention provides that the first force-generating means is a spring, with its one free end on the locking bolt and is held with its other free end to a rest of the household appliance. To this Way, the first force-generating means is easy and inexpensive to produce, as springs Standard components are.

Grundsätzlich ist Art, Material und Größe der Feder als erstes krafterzeugendes Mittel in weiten Grenzen wählbar. Zweckmäßigerweise ist die Feder eine Schraubenfeder.Basically, the type, material and size of the spring as the first force-generating means in wide Borders selectable. Conveniently, the spring is a coil spring.

Eine andere vorteilhafte Weiterbildung der erfindungsgemäßen Lehre sieht vor, dass der Anschlag eine Schenkelfeder ist. Hierdurch ist die Türverriegelung auf besonders einfache Weise mit einem Toleranzausgleich ausbildbar.Another advantageous development of the teaching of the invention provides that the Stop is a thigh spring. As a result, the door lock on particularly simple Way can be formed with a tolerance compensation.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigt

Figur 1
eine teilweise geschnittene Seitenansicht eines ersten Ausführungsbeispiels einer erfindungsgemäßen Türverriegelung bei geöffneter Tür,
Figur 2
eine teilweise geschnittene Seitenansicht der Türverriegelung aus Fig. 1 in einer weiteren Lage bei geöffneter Tür,
Figur 3
eine teilweise geschnittene Seitenansicht der Türverriegelung aus Fig. 1 bei geschlossener Tür,
Figur 4
eine Draufsicht der Türverriegelung aus Fig. 3,
Figur 5
eine teilweise geschnittene Seitenansicht der Türverriegelung aus Fig. 1 in einer weiteren Lage bei geschlossener Tür,
Figur 6
eine teilweise geschnittene Seitenansicht eines zweiten Ausführungsbeispiels einer erfindungsgemäßen Türverriegelung bei geschlossener Tür,
Figur 7
eine Draufsicht der Türverriegelung aus Fig. 6,
Figur 8
eine teilweise geschnittene Seitenansicht eines dritten Ausführungsbeispiels einer erfindungsgemäßen Türverriegelung bei geschlossener Tür und
Figur 9
eine teilweise geschnittene Seitenansicht eines vierten Ausführungsbeispiels einer erfindungsgemäßen Türverriegelung ebenfalls bei geschlossener Tür.
An embodiment of the invention is shown purely schematically in the drawings and will be described in more detail below. It shows
FIG. 1
a partially sectioned side view of a first embodiment of a door lock according to the invention with the door open,
FIG. 2
a partially sectioned side view of the door lock of Figure 1 in another position with the door open,
FIG. 3
a partially sectioned side view of the door lock of Figure 1 with the door closed,
FIG. 4
a top view of the door lock of Fig. 3,
FIG. 5
a partially sectioned side view of the door lock of Figure 1 in another position with the door closed,
FIG. 6
a partially sectioned side view of a second embodiment of a door lock according to the invention with the door closed,
FIG. 7
a top view of the door lock of Fig. 6,
FIG. 8
a partially sectioned side view of a third embodiment of a door lock according to the invention with the door closed and
FIG. 9
a partially sectioned side view of a fourth embodiment of a door lock according to the invention also with the door closed.

In Fig. 1 ist ein erstes Ausführungsbeispiel einer erfindungsgemäßen Türverriegelung 2 gezeigt. In diesem Ausführungsbeispiel ist die Türverriegelung 2 Bestandteil eines nur teilweise und rein schematisch dargestellten Herdes, der eine Tür 4 mit einer Aufnahme 6 als Schlossfalle und einen Korpus mit einem Haken 8 als Schließkloben aufweist. Die Tür 4 ist über ein Gelenk 10 mit dem Korpus verbunden, so dass die Tür 4 in einem geschlossenen Zustand die Backmuffelöffnung abdeckt und die Backmuffel des Herdes verschließt. Der Haken 8 ist über einen Zapfen 12 parallel zur Blattebene drehbar an dem Korpus gehaltert. Eine Schenkelfeder 14 ist als federnd ausgebildeter Anschlag mit deren einem Schenkel an dem der Tür 4 zugewandten Arm des Hakens 8 gehaltert. Der andere Schenkel der Schenkelfeder 14 erstreckt sich als Anschlag im wesentlichen in die selbe Richtung wie der an dem freien Ende des der Tür 4 zugewandten Arms ausgebildete Vorsprung und ragt in dieser Richtung über den Vorsprung hinaus. An dem gegenüberliegenden Arm des Hakens 8 ist mit ihrem einen freien Ende eine Schraubenfeder 16 als erstes krafterzeugendes Mittel gehaltert, deren anderes freies Ende an dem Korpus gehalten ist. Die Schraubenfeder 16 ist auf Zug vorgespannt, so dass diese die Drehung des Hakens 8 im Uhrzeigersinn fördert. Die Drehung des Hakens 8 im Uhrzeigersinn ist durch einen Zapfen 18 als Anschlag für den Haken 8 begrenzt. Ferner ist an dem selben Arm eine Ausnehmung 20 vorgesehen, in der ein lediglich schematisch dargestellter Bolzen 22 eingreifbar ist. Der Bolzen 22 ist längs einer ebenfalls schematisch dargestellten Führung 24 zwischen einer Entriegelungsstellung und einer Verriegelungsstellung hin und her beweglich, wobei der Bolzen 22 in der Verriegelungsstellung in die Ausnehmung 20 eingreift und somit den Haken 8 in einer Schließstellung festlegt. Der Bolzen 22 und die Führung 24 wirken demnach als zweites krafterzeugendes Mittel zusammen.In Fig. 1 is a first embodiment of a door lock 2 according to the invention shown. In this embodiment, the door lock 2 is part of a part only and purely schematically illustrated stove, a door 4 with a receptacle 6 as Lock latch and a body with a hook 8 as a locking block. The door 4 is over a hinge 10 connected to the body, so that the door 4 in a closed state covering the baking muffle opening and closing the baking muffle of the cooker. The hook 8 is via a pin 12 parallel to the plane of the sheet rotatably supported on the body. A Leg spring 14 is designed as a spring-trained stop with one leg on the Door 4 facing arm of the hook 8 is supported. The other leg of the leg spring 14 extends as a stop substantially in the same direction as that at the free end of the door 4 facing arm formed projection and protrudes in this direction over the Lead out. On the opposite arm of the hook 8 is with her a free End a coil spring 16 is held as a first force-generating means, the other free end is held on the carcass. The coil spring 16 is biased to train, so that this promotes the rotation of the hook 8 in a clockwise direction. The rotation of the hook 8 in Clockwise is limited by a pin 18 as a stop for the hook 8. It is also on the same arm provided a recess 20 in which a purely schematic illustrated bolt 22 is engageable. The bolt 22 is also schematically along one shown guide 24 between an unlocked position and a locking position movable back and forth, wherein the bolt 22 in the locking position in the recess 20th engages and thus determines the hook 8 in a closed position. The bolt 22 and the Guide 24 thus act together as a second force-generating means.

Nachfolgend ist die Funktionsweise der erfindungsgemäßen Türverriegelung 2 anhand des in den Fig. 1 bis 5 dargestellten ersten Ausführungsbeispiels erläutert:Below is the operation of the door lock 2 according to the invention with reference to the in 1 to 5 illustrated first embodiment explained:

Wie bereits oben ausgeführt, zeigt die Fig. 1 die erfindungsgemäße Türverriegelung 2 in einer Öffnungsstellung des Hakens 8, in der die Tür 4 die Backmuffel des Herdes nicht verschließt. Der Haken 8 liegt, gefördert durch die Rückstellkraft der Schraubenfeder 16, mit dem der Tür 4 abgewandten Arm an dem Zapfen 18 an. Die Schenkelfeder 14 ist entspannt und der Haken 8 ist mit der Aufnahme 6 der Tür 4 nicht in Eingriff. Der Bolzen 22 befindet sich in der Entriegelungsstellung.As already stated above, FIG. 1 shows the door lock 2 according to the invention in one Opening position of the hook 8, in which the door 4 does not close the baking muffle of the cooker. The hook 8 is, promoted by the restoring force of the coil spring 16, with the door 4th remote arm on the pin 18 at. The leg spring 14 is relaxed and the hook 8 is not engaged with the receptacle 6 of the door 4. The bolt 22 is located in the Unlocked.

In dem in Fig. 2 festgehaltenen Moment bei dem Schließen der Tür 4 befindet sich der Haken 8 noch nicht in Eingriff mit der Aufnahme 6 der Tür 4, die den als Anschlag ausgebildeten Schenkel der Schenkelfeder 14 gerade berührt. Wird die Tür 4 weiter in Richtung auf den Korpus des Herdes hin bewegt, so wird der Haken 8 gegen den Uhrzeigersinn um den Zapfen 12 gedreht. Dabei wird die Schraubenfeder 16 weiter auf Zug gespannt und der Haken 8 liegt mit dem der Tür 4 abgewandten Arm nicht länger an dem Zapfen 18 an. Die Schenkelfeder 14 ist weitgehend entspannt.In the fixed in Fig. 2 moment in the closing of the door 4 is the hook. 8 not yet engaged with the receptacle 6 of the door 4, which designed as a stop Legs of the leg spring 14 just touched. Will the door 4 continue toward the Moving the body of the hearth, the hook 8 is counterclockwise around the pin 12 shot. The coil spring 16 is further stretched to train and the hook 8 is located with the door 4 away from the arm no longer on the pin 18 at. The thigh spring 14 is largely relaxed.

Am Ende des Schließvorgangs liegt die Tür 4 an dem Korpus des Herdes an, siehe Fig. 3. Der Haken 8 greift mit dem Vorsprung in die Aufnahme 6 der Tür 4 ein. In dieser Schließstellung wirkt die Druckkraft der Tür 4 gegen die Schenkelfeder 14 der Rückstellkraft der Schraubenfeder 16 entgegen, so dass der Haken 8 der Türverriegelung 2 in der Schließstellung verbleibt. Die Druckkraft der Tür 4 kann beispielsweise auf eine weitere von Korpus und Tür 4 gehalterten und zwischen diesen wirkenden Feder erzeugt werden. Wie aus Fig. 3 ersichtlich, liegen sich die Ausnehmung 20 und der in seiner Entriegelungsstellung dargestellte Bolzen 22 gegenüber, so dass der Bolzen 22 längs der Führung 24 in seine Verriegelungsstellung, in der der Bolzen 22 in die Ausnehmung 20 eingreift, bewegbar ist. At the end of the closing operation, the door 4 rests on the body of the cooker, see Fig. 3. The Hook 8 engages with the projection in the receptacle 6 of the door 4 a. In this closed position the pressure force of the door 4 acts against the leg spring 14 of the restoring force of the Helical spring 16 against, so that the hook 8 of the door lock 2 in the Closed position remains. The pressure force of the door 4, for example, to another of Carcass and door 4 are held and produced between these acting spring. How out Fig. 3 can be seen, are the recess 20 and in its unlocked position represented bolt 22 opposite, so that the bolt 22 along the guide 24 in his Locking position in which the bolt 22 engages in the recess 20, is movable.

Befindet sich der Bolzen 22 in der nicht dargestellten Verriegelungsstellung, sind Korpus und Tür 4 mittels der Türverriegelung 2 miteinander verriegelt. Ein Öffnen der Tür 4 und damit der Backmuffel ist in der Verriegelungsstellung nicht möglich.The bolt 22 is in the locking position, not shown, are body and Door 4 locked together by means of the door lock 2. An opening of the door 4 and thus the Baking muffle is not possible in the locked position.

Fig. 4 zeigt die Anordnung aus Fig. 3 in der Draufsicht.Fig. 4 shows the arrangement of Fig. 3 in plan view.

Für den Fall, dass unübliche Abweichungen in den Abmessungen der Bauteile der Türverriegelung 2 bzw. der Tür 4 und/oder des Korpus oder deren relativer Lage zueinander dazu führen, dass sich die Tür 4 bei dem Schließen um das Gelenk 10 weiter in Richtung Korpus drehen lässt, als es der oben beschriebene Normalfall vorsieht, wird die Schenkelfeder 14 gespannt, wodurch der Überhub der Tür 4 kompensiert ist. Der aufgrund von fertigungsund/oder montagebedingten Toleranzen der Bauteilabmessungen bzw. der relativen Lage der einzelnen Bauteile der Türverriegelung 2 zueinander verursachte Überhub der Tür 4 führt demnach nicht zu einer Beschädigung bzw. Zerstörung des Anschlags oder anderer Bauteile der Türverriegelung 2, da die durch die Tür 4 bei dem Überhub in die Türverriegelung 2 eingeleitete Energie in Spannungsenergie der Schenkelfeder 14 umgewandelt wird. Ferner ist die Funktion der Türverriegelung 2 trotz Überhubs der Tür 4 gewährleistet.In the event that unusual deviations in the dimensions of the components of Door lock 2 or the door 4 and / or the carcass or their relative position to each other cause the door 4 to continue closing around the hinge 10 in the direction of Body rotates, as it provides for the normal case described above, the leg spring 14 tensioned, whereby the overtravel of the door 4 is compensated. Due to production and / or Assembly-related tolerances of the component dimensions or the relative position of individual components of the door lock 2 to each other caused overstroke of the door 4 leads therefore not to damage or destruction of the attack or other components the door lock 2, as the through the door 4 during the overstroke in the door lock. 2 introduced energy is converted into voltage energy of the leg spring 14. Further is ensures the function of the door lock 2 despite overstroke the door 4.

In den Fig. 6 und 7 ist ein zweites Ausführungsbeispiel einer erfindungsgemäßen Türverriegelung bei geschlossener Tür 4 gezeigt. Bei diesem Ausführungsbeispiel ist als Anschlag ein auf einer am Haken 8 ausgebildeten und sich längs des Hakens 8 erstreckenden Führung 25 gleitender Schlitten 26 verwendet. Die Bewegung des Schlittens 26 in Richtung der Tür 4 ist im Bereich des der Tür 4 zugewandten Endes der Führung 25 durch einen an dem Haken 8 ausgebildeten weiteren Vorsprung begrenzt. Eine auf Druck vorgespannte Lagerfeder 28 ist mit deren einem freien Ende an dem Schlitten 26 und mit deren anderem freien Ende an einem an dem Haken 8 ausgebildeten Absatz gehaltert. Analog zu dem bereits zu dem ersten Ausführungsbeispiel beschriebenen Normalfall wird der Schlitten 26 durch die Rückstellkraft der Lagerfeder 28 gegen den am Haken 8 ausgebildeten weiteren Vorsprung gedrückt. Im Falle des Überhubs der Tür 4 wird dieser, analog zu dem ersten Ausführungsbeispiel, durch den sich längs der Führung 25 und gegen die Rückstellkraft der Lagerfeder 28 von der Tür 4 weg bewegenden Schlitten 26 kompensiert.In Figs. 6 and 7 is a second embodiment of an inventive Door lock with the door 4 closed. In this embodiment, as Stop on one formed on the hook 8 and extending along the hook 8 Guide 25 sliding carriage 26 is used. The movement of the carriage 26 in the direction of Door 4 is in the region of the door 4 facing the end of the guide 25 by a on the Hook 8 trained further projection limited. A preloaded on pressure bearing spring 28 is with its one free end on the carriage 26 and with their other free end one formed on the hook 8 heel held. Analogous to the already to the first Embodiment described in the normal case, the carriage 26 by the restoring force of Bearing spring 28 is pressed against the formed on the hook 8 further projection. In the event of the overstroke of the door 4 is this, analogous to the first embodiment, through which along the guide 25 and against the restoring force of the bearing spring 28 of the door 4 away moving carriage 26 compensated.

Ein drittes Ausführungsbeispiel ist in Fig. 8 dargestellt. Bei diesem Ausführungsbeispiel ist als Anschlag ein um einen am Haken 8 ausgebildeten Zapfen 29 drehbarer Hebel 30 verwendet. Der Hebel 30 weist einen längeren Arm als Anschlag für die Tür 4 und einen kürzeren Arm auf. Eine Lagerfeder 28 ist ähnlich wie bei dem vorangegangenen Ausführungsbeispiel mit deren einem freien Ende an dem längeren Arm des Hebels 30 und mit deren anderem freien Ende an einem an dem Haken 8 ausgebildeten Absatz gehaltert. Die Bewegung des längeren Arms des Hebels 30 ist in Richtung der Tür 4 durch einen am Haken 8 ausgebildeten weiteren Vorsprung begrenzt, der das Gegenlager für den kürzeren Arm des Hebels 30 bildet. In dem bereits für vorhergehende Ausführungsbeispiele beschriebenen Normalfall wird der kürzere Arm des Hebels 30 durch die Rückstellkraft der Lagerfeder 28 gegen den am Haken 8 ausgebildeten weiteren Vorsprung gedrückt. Im Falle des Überhubs der Tür 4 wird dieser, analog zu den vorhergehenden Ausführungsbeispielen, durch den sich um den Zapfen 29 gegen den Uhrzeigersinn und gegen die Rückstellkraft der Lagerfeder 28 von der Tür 4 weg drehenden längeren Arm des Hebels 30 kompensiert.A third embodiment is shown in FIG. In this embodiment, as Stop a used around a pin 8 formed on the pin 29 rotatable lever 30. The lever 30 has a longer arm as a stop for the door 4 and a shorter arm. A bearing spring 28 is similar to the previous embodiment with their a free end to the longer arm of the lever 30 and with its other free end one formed on the hook 8 heel held. The movement of the longer arm of the Lever 30 is in the direction of the door 4 by a hook 8 formed on the further projection limited forms the abutment for the shorter arm of the lever 30. In the already for previous example described is the shorter arm of the Lever 30 formed by the restoring force of the bearing spring 28 against the hook 8 pressed another projection. In the case of the overstroke of the door 4, this, analogous to the previous embodiments, by which the pin 29 against the Clockwise and against the restoring force of the bearing spring 28 of the door 4 turning away longer arm of the lever 30 compensated.

In Fig. 9 ist ein viertes Ausführungsbeispiel der erfindungsgemäßen Türverriegelung 2 dargestellt. Bei diesem Ausführungsbeispiel ist als Anschlag ein erster Schenkel eines federnden Metallstreifens 32 bei der Herstellung des Hakens 8 mit Kunststoff teilweise umspritzt bzw. angespritzt und dabei mit dem Haken 8 unlösbar verbunden. Beispielsweise ist der Haken 8 als Kunststoff-Spritzgussteil ausgebildet, während dessen Herstellung der Metallstreifen 32 in die Spritzgussform eingelegt worden ist. Der sich im wesentlichen senkrecht zu der Längsausdehnung des Hakens 8 erstreckende zweite Schenkel ist als Anschlag für die Tür 4 ausgebildet. In dem bereits mehrfach beschriebenen Normalfall liegt die Tür 4 an dem zweiten Schenkel des Metallstreifens 32 an, wobei der zweite Schenkel des Metallstreifens 32 im wesentlichen entspannt ist. Im Falle des Überhubs der Tür 4 wird der zweite Schenkel des Metallstreifens 32, analog zu den vorhergehenden Ausführungsbeispielen, gespannt und der Überhub kompensiert.FIG. 9 shows a fourth exemplary embodiment of the door lock 2 according to the invention shown. In this embodiment, as a stop, a first leg of a resilient metal strip 32 in the manufacture of the hook 8 with plastic partially encapsulated or molded and thereby permanently connected to the hook 8. For example the hook 8 is formed as a plastic injection-molded part, during its production of the Metal strip 32 has been inserted into the injection mold. Which is essentially vertical to the longitudinal extent of the hook 8 extending second leg is as a stop for the Door 4 formed. In the case already described several times the door 4 is located on the second leg of the metal strip 32, wherein the second leg of the metal strip 32nd is essentially relaxed. In the case of the overstroke of the door 4, the second leg of the Metal strip 32, similar to the previous embodiments, stretched and the Over-lift compensated.

Die vorgenannten Ausführungsbeispiele gewährleisten auch bei unüblich großen Toleranzen der Abmessungen der Bauteile bzw. deren relativer Lage zueinander die Funktion der erfindungsgemäßen Türverriegelung 2. Ferner ist eine Beschädigung oder eine Zerstörung des Toleranzausgleichs bzw. der Türverriegelung 2 aufgrund unüblich großer Toleranzen verhindert. Darüber hinaus zeigen das erste und das vierte Ausführungsbeispiel besonders einfache und damit kostengünstige Möglichkeiten der erfindungsgemäßen Türverriegelung 2.The aforementioned embodiments ensure even with unusually large tolerances the dimensions of the components or their relative position to each other the function of Furthermore, damage or destruction of the Tolerance compensation or the door lock 2 due to unusually large tolerances prevented. In addition, the first and fourth embodiments are particularly simple and therefore cost-effective possibilities of the door lock 2 according to the invention.

Claims (7)

  1. Door lock for a domestic appliance, more especially an oven, said door lock including a locking means and a clamping block, which are retained on oppositely situated components of the domestic appliance, wherein the rotatably mounted clamping block is transferable into an open position by means of a first force-generating means, has a stop member for the component holding the locking means and the clamping block is transferable into the closed position in opposition to the force of the first force-generating means by means of the stop member, charactensed in that the stop member (spiral spring 14; metal strip 32) is resilient.
  2. Door lock for a domestic appliance, more especially an oven, said door lock including a locking means and a clamping block, which are retained in oppositely situated components of the domestic appliance, wherein the rotatably mounted clamping block is transferable into an open position by means of a first force-generating means, has a stop member for the component holding the locking means and the clamping block is transferable into the closed position in opposition to the force of the first force-generating means by means of the stop member, characterised in that the bearing arrangement (bearing spring 28) of the stop member is resilient.
  3. Door lock (2) according to claim 1 or 2, characterised in that the clamping block (hook 8) is securable in the closed position by means of a second force-generating means (bolt 22).
  4. Door lock (2) according to claim 3, characterised in that the second force-generating means is a bolt (22) which is engageable into a recess (20) of the clamping block (hook 8).
  5. Door lock according to one of claims 1 to 4, characterised in that the first force-generating means is a spring (helical spring 16), which is retained with its one free end on the clamping block (hook 8) and with its other free end on a section of the domestic appliance (body).
  6. Door lock (2) according to claim 5, characterised in that the spring is a helical spring (16).
  7. Door lock (2) according to one of claims 1 to 6, characterised in that the stop member is a spiral spring (14).
EP03000238A 2002-01-18 2003-01-08 Door latch for a home appliance Expired - Lifetime EP1333230B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10202027A DE10202027C1 (en) 2002-01-18 2002-01-18 Door lock for a household appliance
DE10202027 2002-01-18

Publications (3)

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EP1333230A2 EP1333230A2 (en) 2003-08-06
EP1333230A3 EP1333230A3 (en) 2004-01-07
EP1333230B1 true EP1333230B1 (en) 2005-07-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP03000238A Expired - Lifetime EP1333230B1 (en) 2002-01-18 2003-01-08 Door latch for a home appliance

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EP (1) EP1333230B1 (en)
AT (1) ATE299574T1 (en)
DE (2) DE10202027C1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004039431A1 (en) * 2004-08-13 2006-02-23 BSH Bosch und Siemens Hausgeräte GmbH Household electrical appliance
FR2912493B1 (en) * 2007-02-08 2010-04-23 Brandt Ind COOKING OVEN COMPRISING AT LEAST ONE SAFETY LATCHING DEVICE AND METHOD THEREOF
ITTO20100891A1 (en) * 2010-11-08 2012-05-09 Eltek Spa DOOR LOCK DEVICE FOR HOUSEHOLD APPLIANCES
IT1402674B1 (en) * 2010-11-08 2013-09-13 Eltek Spa DOOR LOCK DEVICE FOR HOUSEHOLD APPLIANCES AND BISTABLE MECHANISM
CN104337487B (en) * 2013-07-31 2018-11-09 伊利诺斯工具制品有限公司 Door lock and the dish-washing machine for being equipped with door lock
DE102016013554B4 (en) 2016-11-12 2021-04-08 Oechsler Ag Door lock, especially for a household appliance with a high hazard potential
EP3911821B1 (en) * 2019-01-15 2023-03-22 Dan Raz Ltd. Panel closure apparatus
WO2023178730A1 (en) * 2022-03-21 2023-09-28 广东美的厨房电器制造有限公司 Door lock structure, household appliance, and control method for household appliance

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB740652A (en) * 1953-08-08 1955-11-16 Stoves Ltd Improvements in or relating to doors for cabinets or containers such for example as domestic ovens and refrigerators
US5132503A (en) * 1989-12-30 1992-07-21 Samsung Electronics Co., Ltd. Apparatus for detecting the open or closed condition of a microwave oven door
DE19738508C1 (en) * 1997-09-03 1998-11-12 Aeg Hausgeraete Gmbh Oven door locking device for electric cooking oven with pyrolytic self-cleaning

Also Published As

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EP1333230A3 (en) 2004-01-07
EP1333230A2 (en) 2003-08-06
DE10202027C1 (en) 2003-10-16
DE50300741D1 (en) 2005-08-18
ATE299574T1 (en) 2005-07-15

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