EP3798397B1 - Dispositif de verrouillage de porte pour un appareil électroménager, appareil électroménager doté d'un dispositif de verrouillage de porte et procédé de fonctionnement d'un dispositif de verrouillage de porte - Google Patents

Dispositif de verrouillage de porte pour un appareil électroménager, appareil électroménager doté d'un dispositif de verrouillage de porte et procédé de fonctionnement d'un dispositif de verrouillage de porte Download PDF

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Publication number
EP3798397B1
EP3798397B1 EP20195630.7A EP20195630A EP3798397B1 EP 3798397 B1 EP3798397 B1 EP 3798397B1 EP 20195630 A EP20195630 A EP 20195630A EP 3798397 B1 EP3798397 B1 EP 3798397B1
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EP
European Patent Office
Prior art keywords
door lock
door
pressure
locking device
locking
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.)
Active
Application number
EP20195630.7A
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German (de)
English (en)
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EP3798397C0 (fr
EP3798397A1 (fr
Inventor
Andreas BEXTERMÖLLER
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
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
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Publication of EP3798397C0 publication Critical patent/EP3798397C0/fr
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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
    • E05C19/02—Automatic catches, i.e. released by pull or pressure on the wing
    • E05C19/024—Automatic catches, i.e. released by pull or pressure on the wing with a bifurcated latch
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4251—Details of the casing
    • A47L15/4257—Details of the loading door
    • A47L15/4259—Arrangements of locking or security/safety devices for doors, e.g. door latches, switch to stop operation when door is open
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12—Casings; Tubs
    • D06F39/14—Doors or covers; Securing means therefor
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/0025—Devices for forcing the wing firmly against its seat or to initiate the opening of the wing
    • E05B17/0029—Devices for forcing the wing firmly against its seat or to initiate the opening of the wing motor-operated
    • 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
    • E05B47/0012—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
    • 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
    • E05B2047/0014—Constructional features of actuators or power transmissions therefor
    • E05B2047/0018—Details of actuator transmissions
    • E05B2047/002—Geared transmissions
    • 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
    • E05B2047/0048—Circuits, feeding, monitoring
    • E05B2047/0067—Monitoring

Definitions

  • the approach presented here relates to a door lock device for a household appliance, a household appliance with a door lock device and a method for operating a door lock device.
  • the approach presented here is based on the task of creating an improved door lock device for a household appliance, a household appliance with an improved door lock device and an improved method for operating a door lock device.
  • this object is achieved by a door lock device for a household appliance, furthermore a household appliance with a door lock device and a method for operating a door lock device with the features or steps of the main claims.
  • a door lock device for a household appliance with a door with a holding element has a locking device and a pressure device.
  • the locking device is formed so that it can be coupled to the holding element of the door, wherein the holding element is locked to the locking device in a locking position of the locking device and is released from the locking device in an opening position of the locking device.
  • the pressure device is formed to exert pressure on the locking device in order to press the locking device from the locking position into the opening position in order to open the door.
  • the door lock device can be implemented as a pull-open lock.
  • the holding element can be a so-called locking block, which can be firmly connected to the door of the household appliance.
  • the door lock device can be shaped to be accommodated in a door frame.
  • the holding element can, for example, be enclosed by the locking device in the locking position of the locking device, for example, be arranged so that it is pulled into the door lock device in order to close the door.
  • the pressure device can be designed to be movable. For example, the pressure device can be moved from a position remote from the locking device towards the locking device in order to mechanically press it into the open position and thus open the door.
  • the door lock device has a motor drive device that is designed to move the pressure device in order to exert pressure on the locking device.
  • the pressure device can be linearly movable. This creates a possibility of opening the door electrically.
  • the pressure device has a movable rack which is formed in a contact position to mechanically exert pressure on the locking device.
  • a rack can be easily moved by means of a gear.
  • the rack can be moved linearly away from the locking device by driving the gear in one direction and moved linearly towards the locking device by driving the gear in the opposite direction.
  • the locking device can comprise a rotary latch with a pressure surface for absorbing the pressure of the pressure device.
  • the pressure device can have a counter contour that matches the pressure surface for exerting the pressure on the pressure surface.
  • the locking device can thus be stably rotated from the locking position into the desired opening position.
  • the locking device can also have a lever that is rotatably coupled to the rotary latch via a joint, which in turn can be linearly and additionally or alternatively rotatably received in a groove of the door lock device. This creates a locking device with a functional rotary latch mechanism.
  • the door lock device has a switching contact device with at least one switching contact that can be actuated in response to a movement of the pressure device.
  • the switching contact device can also have two or more such switching contacts. By actuating the switching contact, for example by pressing it in, using the pressure device, a switch can be closed. In this way, a position of the pressure device and thus an opening state of the door lock device can be recognized based on actuated or unactuated switching contacts.
  • the pressure device can, for example, have a curved contour for mechanically actuating the switching contact.
  • the contour can be implemented in an outer surface of the pressure device, for example in the form of a recess or an S-shape in the outer surface.
  • One or more switching contacts can thus be actuated by the movement of the pressure device.
  • the switching contact device can also be designed to provide a first contact signal to a control unit of the household appliance, the first contact signal indicating that the locking device is in the open position and closing of the door is permitted, and to provide a second contact signal to the control unit of the household appliance, the second contact signal indicating that the locking device is moved from the locking position to the open position, and to provide a third contact signal to the control unit of the household appliance, the third contact signal indicating that the locking device is in the open position and closing of the door is blocked.
  • the control unit can advantageously detect an opening state of the door lock device using the contact signals.
  • the door lock device described here can be used accordingly in connection with a commercial or professional device, for example a medical device, such as a cleaning or disinfection device, a small sterilizer, a large-scale disinfector or a container washing system.
  • a medical device such as a cleaning or disinfection device, a small sterilizer, a large-scale disinfector or a container washing system.
  • a household appliance has a door with a holding element and a door lock device, which is designed in an embodiment presented here.
  • the household appliance can be, for example, a cleaning device such as a dishwasher or a washing machine.
  • the door lock device can be arranged in a door frame of the household appliance.
  • a household appliance presented here can serve as a replacement for known household appliances, wherein the door of the household appliance can advantageously also be opened without a handle.
  • a method for operating a door lock device comprises at least one step of moving.
  • the pressure device is moved to exert pressure on the locking device to press the locking device from the locking position to the opening position to cause the door to open.
  • This method can be implemented, for example, in software or hardware or in a mixture of software and hardware, for example in a control unit.
  • the moving step can be effected, for example, by activating a motor drive device coupled to the printing device.
  • the method may further comprise a step of moving back in which the pressure device is moved away from the locking device to enable the door to be closed.
  • Figure 1 shows a cross-sectional view of a household appliance 100 with a door lock device 105 in an open position 107 according to an embodiment.
  • the household appliance 100 has a door with a holding element.
  • the holding element which according to one embodiment is formed as a locking block, is firmly connected to the door according to this embodiment.
  • the door lock device 105 is accommodated on or in the household appliance 100, for example on the front wall of the household appliance 100.
  • the door lock device 105 has a locking device 110 and a pressure device 115.
  • the locking device 110 is formed so as to be able to be coupled to the holding element of the door, wherein the holding element is locked to the locking device 110 in a locking position of the locking device 110 and in an opening position 107 of the locking device 110 is released from the locking device 110.
  • the pressure device 115 is designed to exert a pressure on the locking device 110 in order to press the locking device 110 from the locking position into the opening position 107 in order to cause the door to open.
  • the door of the household appliance 100 is open and the holding element of the door is released so that the door can be opened even further, for example by a user.
  • the locking device 110 has a rotary latch 125 with a pressure surface 130 for absorbing the pressure of the pressure device 115.
  • the pressure device 115 has a counter contour 135 matching the pressure surface 130 for exerting the pressure on the pressure surface 130.
  • the locking device 110 also has a lever 140 which is rotatably coupled to the rotary latch 125 via a joint 137 and which is in turn linearly and/or rotatably received in a groove 145 of the door lock device 105.
  • the groove 145 is straight. In the open position 107 of the locking device 110 shown here, the lever 140 is arranged facing a lower stop of the groove 145. In the open position 107, the rotary latch 125 is arranged rotated away from the pressure device 115.
  • the pressure device 115 is designed to be movable.
  • the door lock device 105 has a motor drive device 150 which is designed to move the pressure device 115 in order to exert pressure on the locking device 110.
  • the printing device 115 comprises a movable rack which is arranged in a Fig.3 shown contact position is designed to apply the pressure mechanically to the locking device 110.
  • the rack is designed to be linearly movable away from the locking device 110 by driving a gear 155 rotatable by the drive device 150 in one direction and linearly movable towards the locking device 110 by driving the gear 155 in the opposite direction.
  • the door lock device 105 further comprises, according to this embodiment, a switching contact device 160 with at least one switching contact 165, 170, which can be actuated in response to a movement of the pressure device 115.
  • the switching contact device 160 comprises, according to this embodiment, a first switching contact 165 and a second switching contact 170. By actuating, for example by pressing, the switching contact 165, 170, an associated switch of the Switching contact device 160 is closed. According to this embodiment, the switch of the first switching contact 165 is in an open state 0 and the switch of the second switching contact 170 is in a closed state 1.
  • the pressure device 115 has a curved contour 175 for mechanically actuating the switching contact 165, 170.
  • the contour 175 is realized in an outer surface of the pressure device 115, according to this embodiment in the form of a depression or an S-shape in the outer surface.
  • the contour 175 is formed on an end of the rack opposite the counter contour 135.
  • the switching contact device 160 is designed to provide a first contact signal to a control unit of the household appliance 100, wherein the first contact signal indicates that the locking device 110 is in the open position 107 and closing of the door is enabled, and to provide a second contact signal to the control unit of the household appliance 100, wherein the second contact signal indicates that the locking device 110 is moved from the locking position to the open position 107, and to provide a third contact signal to the control unit of the household appliance 100, wherein the third contact signal indicates that the locking device 110 is in the open position 107 and closing of the door is blocked.
  • the switching contact device 160 provides the first contact signal. In Fig.2 the switching contact device 160 provides the second contact signal and in Fig.3 the switching contact device 160 provides the third contact signal.
  • the door lock device 105 presented here enables pressure to be exerted on the locking mechanism of the lock within a door lock for a household appliance 100, so that the door or its holding element is released from the locking mechanism and the door is released.
  • the pressure device 115 can also be referred to as an actuating device.
  • the door is opened automatically using an adaptive solution to a standard door lock that may already be present.
  • the door lock device 105 offers acoustic advantages and is cost-effective thanks to its modular design.
  • the motor drive device 150 which can also be referred to as a drive, is adapted to the door lock device 105.
  • This drive moves the rack, which exerts a force on a rotary latch mechanism of the door lock through a defined link, which forces this rotary latch 125 from a "closed” position to the "open” position shown here.
  • This also opens the door, since the locking bolt, which is firmly connected to the door, is moved out of the rotary latch 125.
  • a status query is integrated into the door lock device 105, which, according to this exemplary embodiment, detects the position of the rack using switching contacts 165, 170 and passes it on to control electronics of the household appliance 100.
  • a mechanism in the form of the pressure device 115 exerts a force on the rotary latch 125 of the door lock, so that the rotary latch 125 moves from the "closed” position to the "open” position and pushes the door open.
  • the pressure device 115 is moved by a small motor.
  • Two switching contacts 165, 170 are actuated by the mechanism, according to this embodiment by the rack with the corresponding link.
  • the switch states transmit the position of the rack as a signal to the control unit.
  • the door is opened and the pressure device 115 is in a starting position 180.
  • the rack actuates the second switching contact 170, which can also be referred to as the "lower signal contact”, but does not actuate the first switching contact 165, resulting in the states 0/1.
  • Figure 2 shows a cross-sectional view of a door lock device 105 in a locking position 200 according to an embodiment.
  • This can be the Figure 1
  • This could be the door lock device 105 described above, which is now arranged in the locking position 200 in which the door is closed and locked. The door was closed, for example, by a user pushing it shut.
  • the lever 140 of the locking device 110 is arranged facing an upper stop of the groove 145 opposite the lower stop of the groove 145.
  • the rotary latch 125 is arranged rotated towards the pressure device 115, whereby the holding element is arranged drawn into the door lock device 105 and the door is thus closed.
  • the holding element is according to this Embodiment in the locking position 200 of the locking device 110 enclosed by the rotary latch 125.
  • the pressure device 115 is opposite the one in Fig.1 shown initial position is arranged to move linearly towards the rotary latch 125 in order to subsequently mechanically press it into the opening position due to an opening request.
  • the door is closed and the actuating device is in motion.
  • the rack touches the rotary latch mechanism and will actuate it in the next moment.
  • the rack actuates the first switching contact, which can also be referred to as the "upper signal contact”, but does not actuate the second switching contact, resulting in states 1 10.
  • Figure 3 shows a cross-sectional view of a door lock device 105 in an open position 107 according to an embodiment.
  • This can be the one based on Fig.2
  • This can be the door lock device 105 described above, which has been moved into the opening position 107 by the pressure device 115.
  • the pressure device 115 is opposite the Fig.2 shown position has been moved further linearly towards the rotary latch 125 in order to mechanically press it into the opening position 107.
  • the rack exerts the pressure mechanically on the locking device 110 in the contact position 300.
  • the door was opened automatically.
  • the rack exerted a force on the rotary latch mechanism, which forced it to open.
  • the rack does not activate any of the switching contacts 165, 170, which results in the states 01 0.
  • the printing device 115 subsequently returns to its starting position, which in Fig.1 is shown.
  • Figure 4 shows a flow chart of a method 400 for operating a door lock device according to an embodiment. This can be the door lock device that is in one of the Figures 1 to 3 was described.
  • the method 400 comprises at least one moving step 405.
  • the pressure device is moved to exert pressure on the locking device to press the locking device from the locking position into the opening position to cause the door to open.
  • the method further comprises a step 410 of moving back, in which the pressure device is moved away from the locking device to enable the door to be closed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Lock And Its Accessories (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Claims (9)

  1. Dispositif formant serrure de porte (105) pour un appareil électroménager (100), comportant une porte comportant un élément de retenue, dans lequel le dispositif formant serrure de porte (105) présente au moins les caractéristiques suivantes :
    un moyen de blocage (110) qui est formé de manière à pouvoir être accouplé à l'élément de retenue de la porte, dans lequel l'élément de retenue est bloqué au niveau du moyen de blocage (110) dans une position de blocage (200) du moyen de blocage (110) et est libéré du moyen de blocage (110) dans une position d'ouverture (107) du moyen de blocage (110) ; et
    un moyen de pression (115) qui est formé pour exercer une pression sur le moyen de blocage (110) afin de pousser le moyen de blocage (110) de la position de blocage (200) à la position d'ouverture (107) pour provoquer une ouverture de la porte,
    caractérisé en ce que
    le moyen de pression (115) présente une crémaillère mobile qui, dans une position de contact (300), est formée pour exercer mécaniquement la pression sur le moyen de blocage (110).
  2. Dispositif formant serrure de porte (105) selon la revendication 1, comportant un moyen d'entraînement motorisé (150) qui est conçu pour déplacer le moyen de pression (115) afin d'exercer la pression sur le moyen de blocage (110).
  3. Dispositif formant serrure de porte (105) selon l'une des revendications précédentes, dans lequel le moyen de blocage (110) comprend un loquet rotatif (125) comportant une surface de pression (130) pour la réception de la pression du moyen de pression (115).
  4. Dispositif formant serrure de porte (105) selon l'une des revendications précédentes, comportant un moyen à contact de commutation (160) comportant au moins un contact de commutation (165, 170) pouvant être actionné en réponse à un déplacement du moyen de pression (115).
  5. Dispositif formant serrure de porte (105) selon la revendication 4, dans lequel le moyen de pression (115) présente un contour incurvé (175) pour l'actionnement mécanique du contact de commutation (165, 170).
  6. Dispositif formant serrure de porte (105) selon l'une des revendications 4 à 5, dans lequel le moyen à contact de commutation (1600) est configuré pour fournir un premier signal de contact à une unité de commande de l'appareil électroménager (100), dans lequel le premier signal de contact indique que le moyen de blocage (110) se trouve dans la position d'ouverture (107) et qu'une fermeture de la porte est autorisée, et pour fournir un deuxième signal de contact à l'unité de commande de l'appareil électroménager (100), dans lequel le deuxième signal de contact indique que le moyen de blocage (110) est déplacé de la position de blocage (200) à la position d'ouverture (107), et pour fournir un troisième signal de contact à l'unité de commande de l'appareil électroménager (100), dans lequel le troisième signal de contact indique que le moyen de blocage (110) se trouve dans la position d'ouverture (107) et qu'une fermeture de la porte est empêchée.
  7. Appareil électroménager (100) comportant une porte comportant un élément de retenue et un dispositif formant serrure de porte (105) selon l'une des revendications précédentes.
  8. Procédé (400) permettant de faire fonctionner un dispositif formant serrure de porte (105) selon l'une des revendications 1 à 6, dans lequel le procédé (400) comprend les étapes suivantes :
    déplacement (405) du moyen de pression (115) pour exercer une pression sur le moyen de blocage (110) afin de pousser le moyen de blocage (110) de la position de blocage (200) à la position d'ouverture (107) pour provoquer une ouverture de la porte.
  9. Procédé (400) selon la revendication 8, comportant une étape (410) de déplacement vers l'arrière, dans laquelle le moyen de pression (115) est déplacé à l'écart du moyen de blocage (110) pour permettre une fermeture de la porte.
EP20195630.7A 2019-09-30 2020-09-11 Dispositif de verrouillage de porte pour un appareil électroménager, appareil électroménager doté d'un dispositif de verrouillage de porte et procédé de fonctionnement d'un dispositif de verrouillage de porte Active EP3798397B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019126284.4A DE102019126284A1 (de) 2019-09-30 2019-09-30 Türschlossvorrichtung für ein Haushaltgerät, Haushaltgerät mit einer Türschlossvorrichtung und Verfahren zum Betreiben einer Türschlossvorrichtung

Publications (3)

Publication Number Publication Date
EP3798397A1 EP3798397A1 (fr) 2021-03-31
EP3798397C0 EP3798397C0 (fr) 2024-04-17
EP3798397B1 true EP3798397B1 (fr) 2024-04-17

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ID=72473409

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EP20195630.7A Active EP3798397B1 (fr) 2019-09-30 2020-09-11 Dispositif de verrouillage de porte pour un appareil électroménager, appareil électroménager doté d'un dispositif de verrouillage de porte et procédé de fonctionnement d'un dispositif de verrouillage de porte

Country Status (2)

Country Link
EP (1) EP3798397B1 (fr)
DE (1) DE102019126284A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022127560A1 (de) 2021-10-19 2023-04-20 Emz-Hanauer Gmbh & Co. Kgaa Elektrisches Haushaltsgerät und Türverschluss dafür

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