EP3631301B1 - Dispositif de fermeture électromécanique pour portes d'appareils - Google Patents

Dispositif de fermeture électromécanique pour portes d'appareils Download PDF

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Publication number
EP3631301B1
EP3631301B1 EP18728025.0A EP18728025A EP3631301B1 EP 3631301 B1 EP3631301 B1 EP 3631301B1 EP 18728025 A EP18728025 A EP 18728025A EP 3631301 B1 EP3631301 B1 EP 3631301B1
Authority
EP
European Patent Office
Prior art keywords
lock
locking
door
closure
connecting element
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
EP18728025.0A
Other languages
German (de)
English (en)
Other versions
EP3631301A1 (fr
Inventor
Rinaldo Pietrasch
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.)
Rahrbach GmbH
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Rahrbach GmbH
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Filing date
Publication date
Application filed by Rahrbach GmbH filed Critical Rahrbach GmbH
Publication of EP3631301A1 publication Critical patent/EP3631301A1/fr
Application granted granted Critical
Publication of EP3631301B1 publication Critical patent/EP3631301B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • E05B47/02—Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means
    • E05B47/026—Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means the bolt moving rectilinearly
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B53/00—Operation or control of locks by mechanical transmissions, e.g. from a distance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/02—Doors specially adapted for stoves or ranges
    • F24C15/022—Latches
    • 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
    • E05B15/004—Lost motion connections
    • 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
    • E05B2047/0015—Output elements of actuators
    • E05B2047/0016—Output elements of actuators with linearly reciprocating motion
    • 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
    • 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
    • E05B2047/0068—Door closed
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/0052—Locks mounted on the "frame" cooperating with means on the "wing"
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
    • E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
    • E05C17/46—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means in which the wing or a member fixed thereon is engaged by a movable fastening member in a fixed position; in which a movable fastening member mounted on the wing engages a stationary member
    • E05C17/48—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means in which the wing or a member fixed thereon is engaged by a movable fastening member in a fixed position; in which a movable fastening member mounted on the wing engages a stationary member comprising a sliding securing member

Definitions

  • the invention relates to an electromechanical locking device for device doors, in particular for doors of hot devices, which has a lock with different locking levels, in particular with at least two locking levels, preferably with at least three locking levels, and an actuating unit for transferring the lock to at least some of the different locking levels, with the actuating unit and the lock are designed spatially separated as separate structural units and the actuating unit is connected to the lock via a connecting element, and the lock is set up to receive, secure and release a locking element, in particular on the door side.
  • the present invention also relates to a device with a door and a closure element, in particular on the door side.
  • appliance doors for example appliance doors for hot appliances, refrigerators, refrigerated cabinets, etc.
  • the opening process of the door and possibly also the closing process of the door takes place in two or more stages.
  • the lock and thus the locking element are released into an intermediate latching step from a closing step of the lock, so that the door is not opened directly, but a door gap or a gap opening of the door is already achieved between the door and a door seal or the device .
  • the lock Conversely, during the closing process of the appliance door, provision can be made for the lock, with a closure element already partially arranged or received therein, to initially be transferred to an intermediate latching step in which, analogous to the opening process, a door or opening gap remains between the door and the appliance.
  • the lock In a further step or in a further locking stage, the lock is transferred to a locking stage in which the gap between the door and the device is closed, and in particular the door is sealed with a seal and the locking element is secured or locked.
  • a door lock for a thermal cooking and / or baking device has a door handle rotatably mounted in a lockable door, a locking pin which has at least one locking link with a grid recess, and a locking bracket designed to correspond to the locking pin.
  • the DE 100 27 774 A1 relates to a device for closing the door of an oven for the heat treatment of food with at least two door locking elements, namely a locking piston and at least one locking box, the locking piston on the door to be closed and the locking box on the frame or housing of the oven or vice versa, the locking piston on the frame or housing of the furnace and the lock box is arranged on the door.
  • the locking piston can be latched and / or locked on the lock box to fix the door.
  • At least one of the two door locking elements can be movably attached to the frame or housing of the oven or to the door in such a way that, from a first position in which the door is opened at least a small gap, can be brought into a second position in which the door is essentially completely closed.
  • the DE 689 02 299 T2 discloses a lock consisting of a hook which is slidably mounted in a furnace body between a locking position in which no lateral movement of the hook is possible and a catching position in which the hook can move laterally against the holding force of a spring for the passage of the door bolt is.
  • a lever holds the hook in the unlocked position and must be operated to unlock and open the door.
  • the lock and the actuating unit for transferring the lock between the different locking stages are designed in one piece or as a common structural unit for reasons of cost.
  • Such a closure device is, for example, from DE 10 2006 019 515 A1 known. However, this configuration has proven to be disadvantageous.
  • the known design is disadvantageous because in the area of the door frame of the device and its door, as a rule, only a relatively small installation space is available for the arrangement of the locking device. This applies in particular to hot devices in which heating and / or ventilation devices are also provided in the side area of the door frame of the device door in which the locking device is to be arranged.
  • a known locking device can therefore only be arranged with the acceptance of an obstruction or impairment of other device components.
  • Only purely mechanical locking devices are known as a remedy. Although these require a correspondingly small installation space, they cannot meet the safety standards that are sometimes prescribed that can be achieved with an electromechanical locking device.
  • the known design of the electromechanical locking devices is also disadvantageous because the electronic and electrical components comprised by the actuating unit are to a certain extent temperature-sensitive, at least with regard to long-term or permanent operation of the devices. This applies not only, but preferably, to devices such as, for example, hot devices which, when in operation, reach a temperature of several 100 ° C. inside the device, such as in the baking space or in the cooking space.
  • the known design of electromechanical locking devices means that the electrical or electronic components of the actuating unit are also arranged in the immediate vicinity of the door frame of the device door, which means that they are subject to not inconsiderable temperature fluctuations despite a corresponding insulation of the interior of the device, which is has a negative effect on the wear resistance of the said components in continuous operation.
  • the object of the present invention is to propose an electromechanical locking device for appliance doors that overcomes the disadvantages in the prior art, in particular to propose an electromechanical locking device that is structurally adapted to the conditions of the device and to the operation of the device.
  • this object is achieved in that the connecting element is arranged in a freewheel device at one end, in particular at the end connected to the lock.
  • this enables the installation space of the device in which the lock is to be arranged to be optimally used, since only the mechanical components of the lock are left in this area or installation space must be included.
  • the area in which the lock must be arranged is largely determined by the type of appliance door and its locking or security concept. For example, in the case of a three-point safety device consisting of two door hinges and a door lock, the location of the lock can be predetermined by the positions of the hinges.
  • the spatial separation of the actuating unit and lock which are designed as separate structural units, enables the actuating unit and its electrical or electronic components to be arranged in areas of the device that are exposed to influences that are detrimental to the wear resistance of the electronic components during operation of the device, such as For example, they are better protected or shielded from sudden changes in temperature.
  • the connecting element which enables the spatial separation according to the invention between the separate structural unit of the lock and the separate structural unit of the actuating unit and at the same time ensures the connection between the actuating unit and the lock, is preferably a mechanical connecting element.
  • the actuating unit based on corresponding regulating and control devices and preferably using at least one drive unit, generates movements, these movements being transmitted to the connecting element through a connection between the actuating unit and the connecting element and equally through a connection between the Connecting element and the lock are transferred to the lock, in particular to a lock latch.
  • the connecting element is arranged in a freewheel device at one end, in particular at the end which is connected to the lock, preferably to the latch of the lock.
  • the arrangement of one end of the connecting element in a freewheel device offers the basic possibility of not necessarily or not always transferring movements of the lock, preferably movements of the latch of the lock, to the actuating unit via the connecting element. This means that this creates the possibility of reaching certain locking levels of the lock and possibly also enabling the lock to be transferred between different locking levels without the actuating unit having to actively generate a corresponding movement or at least passively follow it. This is always the case when, when the lock or the latch of the lock is moved, the end of the connecting element arranged in the freewheel device is not moved beyond the limits or stops of the freewheel device.
  • the freewheel device is connected to a latch of the lock.
  • the freewheel device is dimensioned in such a way that two locking stages of the lock can be taken up without moving the connecting element.
  • two locking stages of the lock or the latch of the lock can be taken without moving the connecting element does not mean, conversely, that these locking stages cannot also be reached by moving the connecting element, which in turn go back to a movement initiated and executed by the actuating unit.
  • the freewheel or freewheel device and the actuating movements of the actuating unit are dimensioned and coordinated with one another in such a way that the closure stages, which can be implemented or taken without moving the connecting element due to the freewheel device and its dimensions, also via a corresponding movement of the connecting element can be produced or implemented. Consequently, it can advantageously be provided that the freewheeling device of the freewheeling device is shorter than the maximum distance or the maximum distance of the setting positions generated or can be generated by the setting unit.
  • the closure steps which can at least also be taken without moving the connecting element, are at least an intermediate latching step and an opening step.
  • the intermediate locking step is that locking step in which the locking element is already at least partially removed from the lock or into the Lock was added, but the position of the locking element in the lock is designed such that a door gap or opening gap still remains between the door of the device and the device or the door frame of the device.
  • the opening stage of the lock can be the position of the lock or the latch of the lock in which the latch is opened to the extent that the closure element can just enter the lock as well as just step out of the lock.
  • the opening stage is not necessarily or not exclusively associated with the opening process of the door, but that the opening stage must be taken at least once when the appliance door is closed, namely at the moment when the closure element overcomes the lock latch.
  • the opening stage of the lock describes a state of the lock in which the locking element can overcome the latch of the lock both into and out of the lock.
  • the appliance door is moved manually and without any action on the part of the actuating unit from a fully open state to a partially open state in which a door gap remains between the appliance door and the appliance.
  • the lock has a movable, in particular linearly movable, latch for receiving, securing and releasing the locking element.
  • a movable, in particular linearly movable, latch for receiving, securing and releasing the locking element.
  • Another advantage is that a movement in the same direction or a parallel direction of movement between the connecting element and the latch of the lock with the connecting element enables relatively large distances to be achieved between the actuating units and locks, which are designed as separate structural units, since in the case of sufficiently rigid materials for the realization of the connecting element, the forces generated by the movement of the actuating unit, i.e. in particular tensile and compressive forces, are effectively transmitted via the connecting element to the lock or the latch and there also as corresponding tensile or compressive forces the movement of the lock, in particular the change in the locking stage of the Lock can cause.
  • the actuating unit in particular the movable components of the actuating unit, can be moved parallel to a direction of movement of the connecting element. This also achieves the advantages mentioned above.
  • the locking device provides that the latch of the lock is pretensioned by an elastic element in the direction of an intermediate latching step of the lock.
  • an elastic element also enables the latch to be deflected out of the intermediate latching stage of the lock through simultaneous elastic deformation of the elastic element, and in particular into an opening stage, both by exerting a force on the latch by the locking element and by exerting a force on the latch by the connecting element of the castle is transferred.
  • the elastic element interacts with the latch and the remaining components of the lock in such a way that further movement of the latch with elastic deformation of the elastic element beyond the opening step of the lock is prevented.
  • a stop can be provided for this purpose, for example. It can also be provided that the elastic element experiences a maximum possible compression in this state.
  • the elastic element is designed so that it can be transferred together with the latch from an intermediate latching stage of the lock to a closing stage of the lock without changing a tension state.
  • such a configuration of the elastic element can be realized in that the elastic end is arranged and fastened on the one hand to the movable latch and on the other hand, possibly provided with a corresponding preload, comes to rest against a stop that is movable on one side and that, for example, on a with the trap is arranged together movable guide element for guiding the elastic element.
  • the connecting element can be transferred into a locking position by the actuating unit, the lock being transferred from an intermediate detent level to a locking level.
  • the closure element is preferably drawn into the lock.
  • the transfer of the lock and the latch of the lock into the locking stage can result from an actuation of the actuating unit and a movement of the actuating unit generated therefrom, which is suitable for moving the connecting element beyond the freewheel of the freewheel device, so that the one arranged in the freewheel device.
  • the end of the connecting element comes to rest against a corresponding stop of the freewheel device and, after the stop position has been established, is able to transmit a compressive or tensile force to the freewheel device and the associated latch of the lock.
  • the latch can be transferred from an intermediate latching stage to a closing stage.
  • the pulling in of the locking element into the lock when the lock is transferred into the locking step can be achieved, for example, by means of a correspondingly geometrical design of the latch.
  • the locking element has a cylindrical locking bolt
  • the lock latch has a ramp shape facing away from the appliance door on the rear side, so that at a corresponding movement of the latch, the ramp shape of the same leads to the fact that the locking element is drawn into the lock via the locking bolt.
  • the transfer of the lock to the locking step can particularly preferably take place automatically.
  • the locking device can be set up for the automatic transfer of the lock from the intermediate latching stage to the locking stage. This means that the transfer takes place without the active intervention of an operator.
  • An initiation of the process for transferring the lock to the locking stage should not be included. Rather, an automatic transfer should be assumed if the locking device itself or in coordination with other devices of the device determines or identifies that the transfer into the locked position is possible and intended. This can include, for example, the determination that the locking element is already partially in the lock and the lock is in or approximately in the intermediate locking step.
  • the automatic transfer can also include the query or confirmation of a user or operator input for closing the appliance door. Other status information about the device obtained from sensor devices of the device can also be taken into account when initiating the automatic transfer of the lock from the intermediate latching stage to the locking stage.
  • the locking device is set up for the automatic transfer of the lock from the locking step into the intermediate latching step.
  • the initiation of the transfer of the lock from the locking stage to the intermediate latching stage is not or only can be triggered by an operator or user in an emergency.
  • the objects already described above can be used for the automatic transfer of the lock.
  • the position of the lock or the latch and the position of the locking element can be determined and processed by means of appropriate measuring and control devices.
  • the position of the actuating unit can also be recorded and processed by measuring and control devices in order to implement the automatic actuation of the lock.
  • measuring and regulating devices In the following part of the description of the present invention, at least one exemplary embodiment of such measuring and regulating devices will be discussed in greater detail.
  • This can be the switching elements arranged in the lock and / or in the actuating unit.
  • other device parts and device components can also influence the automatic system for transferring the lock from the locking step to the intermediate locking step.
  • the automatic system can be influenced and / or controlled by electronic components of the device.
  • An automatic opening of the device door via an automatic transfer of the lock from the locking step to the intermediate locking step has the advantage, for example, that a manual opening of the device, apart from an emergency stop function, can only be initiated and then carried out or completed if in the device or the There are no more dangerous conditions in the room locked by the door. For example, when cleaning the device in which aggressive cleaning substances are used, the device door can be prevented from being opened before the cleaning or the cleaning program is completed.
  • further sensors of the device can be taken into account.
  • control electronics of the device influence the automatic opening of the lock, i.e. enable or prevent it.
  • the connecting element can be transferred into an open position by the actuating unit, the lock being transferred from an intermediate latching step into an opening step.
  • the closure element emerges from the lock.
  • the transfer of the lock from the intermediate latching stage to the opening stage can be accomplished, for example, by a movement generated electromechanically by the actuating unit, which is transmitted via the connecting element to the lock, in particular to the latch of the lock.
  • the movement transmitted by the connecting element can be designed in such a way that the connecting element with its end arranged in a freewheel device initially crosses the freewheel and comes to rest against a stop of the freewheel device and can then exert a tensile or compressive force on the freewheel device, which is transferred to the latch via the corresponding connection of the freewheel device with the latch of the lock and is suitable, for example, to push or pull the latch from the intermediate latching stage into an opening stage against a bias of an elastic element.
  • the loosening or stepping out of the connecting element from the lock is realized by a sufficiently large movement of the latch, which is suitable for releasing the locking element.
  • the movement of the closure element out of the lock can be provided by fundamentally different mechanisms. On the one hand, corresponding ejection means can be provided. On the other hand you can too other components of the device or the device door, such as a door seal, apply the appropriate forces in order to move the locking element out of the lock in the event that the locking element is released by the lock latch.
  • the freewheel device can be dimensioned such that the freewheel device comprises two stops, on which, depending on the direction of movement, an end of the connecting element arranged in the freewheel device comes to rest when the freewheel is exceeded. It can particularly preferably be provided that the end of the connecting element arranged in the freewheel device comes to rest against opposing stops of the freewheel device at least in the closed position and at least in the open position of the lock. In this case, the contact between the freewheel device or the stop of the freewheel device and the connecting element is advantageously achieved before the locking position and the opening position of the lock or the latch of the lock are reached.
  • the freewheel device can be designed in such a way that the establishment of a contact between the connecting element and a stop of the freewheel device provides the basis for the freewheel device and thus the latch of the lock connected to the freewheel device to move via a movement of the connecting element and into another locking stage, in particular in the closing stage or opening stage, can be transferred.
  • the lock has a switching element, in particular a microswitch, with which the position of the locking element in the lock is detected.
  • the switching element can not only be set up to detect the position of the locking element in the lock, but also the presence of the locking element in the lock.
  • a first switching state of the switching element depicts the absence of a locking element in the lock and a second switching state depicts the presence of a locking element in the lock.
  • further switching states of the switching element can be provided, which are assigned to different positions of the locking element in the lock.
  • the switching element of the lock can accordingly be used in the automatic transfer between locking stages of the lock, in that the switching element detects or determines the state of the lock and possibly the locking element.
  • a particularly advantageous embodiment of the closure device in this regard also provides that the switching element is connected to a switching lever which is arranged such that it is moved or can be moved by the closure element.
  • the switching lever can be designed in such a way that one end is rotatably mounted and, in particular, is connected to the switching element and a second movable end is provided which can come into contact with the locking element and experiences a corresponding movement when the locking element moves in the lock, which is passed on to the switching element via the rotatable end of the switching lever and its connection with the switching element.
  • the actuating unit comprises a drive unit, in particular a motor and a gearbox for moving the connecting element. It can also be provided that the actuating unit and its drive unit do not act directly or directly on the connecting element in order to generate a movement on the part of the connecting element, but that the actuating unit comprises an actuator element, for example a linear actuator, on which the drive unit acts and which in turn is connected to the connecting element and transmits the movement of the linear actuator to the connecting element.
  • the actuating unit comprises an actuator element, for example a linear actuator, on which the drive unit acts and which in turn is connected to the connecting element and transmits the movement of the linear actuator to the connecting element.
  • the movement of the actuator element moved by the drive unit parallel to the direction of movement of the connecting element is particularly preferred.
  • the actuating unit comprises at least two switching elements, in particular at least two microswitches, for controlling the actuating unit.
  • the switching elements allow to detect an ACTUAL state of the actuating unit, for example the ACTUAL state of the drive unit or the ACTUAL state of an actuator element. This enables mechanical control of the actuating unit.
  • an electronic control of the actuating unit could also be provided, which detects and controls the control of the actuating unit on the basis of voltage and current curves.
  • the switching elements of the actuating unit can also be used in the automatic transfer (s) between the locking stage and the intermediate latching stage of the lock in order to determine and process the state of the actuating unit, in particular the position or position of the actuating unit.
  • a device in particular a hot device with a door and a locking element, in particular on the door side, in that the device has an electromechanical locking device according to one of the configurations described above.
  • the advantages and further developments achieved with the locking devices described above are equally realized, which is why these explanations, effects and advantages will not be discussed again in detail at this point.
  • a particularly advantageous embodiment of the device provides that the lock is arranged halfway up a door opening and the actuating unit is arranged in a lower area of the door opening or below the door opening of the device.
  • the appliance door is secured in a particularly advantageous manner, for example three-point securing via two door hinges and the door lock, while at the same time taking up the installation space taking and possibly temperature-sensitive actuating unit can be arranged in an area of the device, namely in a lower area of the door opening or even below the door opening area.
  • the connecting element of the electromechanical locking device With the use of the connecting element of the electromechanical locking device according to the invention, it can be achieved that in an area of the door opening which is particularly advantageous for producing or providing the door security, such as an area halfway up the door opening, only a minimum amount of installation space in Is claimed.
  • components of a closure device that are sensitive to the conditions and properties inside the device during operation are arranged as separate structural units in areas of the device in which there is good to optimal shielding against the negative conditions and properties, such as for example an area of the device below the door opening or in the lower area of the door opening.
  • the connecting element extends from a lower area of a door opening to a central area of a door opening or to an area of the door opening at half height.
  • the length of the connecting element and thus also the spatial separation of the separate structural unit of the actuating unit and the lock generally correspond to approximately half the height of the door opening. Accordingly, with a door height of about 60 cm, it can be provided that the connecting element is about 30 cm long and the separate structural unit of the lock is about 30 cm away from the separate structural unit of the actuating unit.
  • the Fig. 1 shows an electromechanical locking device 01 which comprises a lock 02 and an actuating unit 03.
  • the lock 02 is set up to receive, secure and release a closure element 04.
  • the locking element 04 can be arranged on the door side, so that with the electromechanical locking device 01 one in the Fig. 1 Appliance door, not shown, is also in the Fig. 1 Device, not shown, can be opened and closed over several stages.
  • the locking device 01 is designed in such a way that both the lock 02 and the actuating unit 03 are designed as separate structural units, the lock 02 and the actuating unit 03 being connected to one another via a connecting element 05, in particular via a mechanical connecting element 05, see above that even in spite of the spatial separation between the lock 02 and the actuating unit 03, actuating movements generated by the actuating unit 03 can be transmitted to the lock via the connecting element 05.
  • the lock 02 makes it possible for the lock 02 to be arranged in device areas which, on the one hand, permit an effective and safe closing of a device door and, on the other hand, only provide a minimum amount of installation space due to the other design of the device.
  • the actuating unit 03 is placed in a device in such a way that the available installation space is optimally used and, moreover, the actuating unit is protected from negative influences and conditions, such as temperature differences.
  • the Fig. 2 shows the lock 02 and the locking element 04, with in comparison to FIG Fig. 1 in the representation of the Fig. 2 a rear wall 02.2 of the housing 02.1 of the lock 02 has been removed and thus allows a view into the interior 02.3 of the lock 02.
  • a latch 06 of the lock 02 is shown.
  • the latch 06 is movably arranged on a base element 07 in the lock 02, the latch 06 being movable linearly in the direction of the arrow B.
  • the latch 06 is connected via the base element 07 to the freewheel device 08, in whose freewheel 09 one end 10 of the connecting element 05 is arranged.
  • the trap 06 is also connected to an elastic element 11, which comes to rest against a movable stop 13 on an end 12 facing away from the trap 06.
  • the elastic element 11 is guided on a guide element 14, which is designed as a cylinder bolt and also serves as a one-sided limit for the stop 13 of the elastic element 11.
  • the freewheel device 08 also includes stops 15 and 16 on both sides of the freewheel 09, on which the end 10 of the connecting element 05 arranged in the freewheel device 08 can come into contact and in each case a frictional connection between the connecting element 05 and the freewheeling device and thus also between the connecting element 05 and trap 06 can generate.
  • the one in the Fig. 2 Shown locking step of the lock 02 represents the intermediate locking step or the neutral step of the lock.
  • the position of the connecting element 05 in the illustration of Fig. 2 corresponds to a neutral position.
  • the position of the connecting element is defined via the relative arrangement with respect to the lock 02.
  • the locking element 04 in particular the locking bolt 04.1
  • the locking bolt 04.1 has come to rest with a switching lever 17 of a switching element 18.
  • the door-side ramp 06.1 in the end section 06.3 of the latch 06 and the force exerted by the locking element 04 in the direction of the interior of the lock means that the latch 06 is out of the position in the Fig. 2 shown neutral level or intermediate locking level in one in the Fig. 3 opening level shown has been transferred.
  • the elastic element 11 is elastically deformed, in particular elastically compressed.
  • the end 10 of the connecting element 05 has been moved by the movement of the latch 06 in the freewheel 09 of the freewheel device 08 without a movement of the connecting element 05 and thus also without a movement controlled and generated by the actuating unit.
  • the connecting element is therefore still in the neutral position.
  • the freewheel 09 of the freewheel device 08 is at least just dimensioned so that the latch 06 from the in the Fig. 2 neutral step or intermediate rest step shown in the Fig. 3 opening step shown can be transferred without a movement of the connecting element 05, that is, a change in the position of the connecting element 05, would be necessary.
  • the closure element 04 is already partially inserted into the lock 02.
  • the dimensioning of the locking element 04 is such that there is still an opening gap or a door gap between the device, not shown, and the device door, not shown, in the position of the lock 02 and the locking element 04.
  • the lock 02 and thus the locking element 04 can be transferred from the intermediate latching step to the locking step, this transfer being carried out by a movement generated by the actuating unit and conveyed via the connecting element 05. Consequently, in order to reach the closing stage of the lock 02, the connecting element 05 is transferred from the neutral position into a locking position. This is in the Fig. 5 shown.
  • the locking element 04 in particular the locking bolt 04.1
  • the locking element 04 is drawn into the lock 02 on the rear ramp 06.2 of the latch 06. This will make the in the Fig. 4 still existing, but not shown, door gap between the device and the device door is canceled and the device door is closed and secured.
  • the elastic element 11 in the pretensioned state of the neutral step or the intermediate latching step is also moved in the direction of the movement of the connecting element 05, the unilaterally movable stop 13 arranged on the guide element 14 causing the tension state or the deformation state of the elastic member 11 is maintained.
  • the closure element 04 in particular the locking bolt 04.1 has already completely crossed the rear ramp 06.2 of the latch 06. Accordingly, the lock of the appliance door has already been completed and the locking stage of the lock 02 has been reached.
  • the switching lever 17 of the switching element 18 can detect the corresponding positioning of the closure element 04 and convey it to the switching element 18.
  • the trap 06 of the one in the Fig. 5 The locking step shown is initially transferred back to the intermediate locking step. This takes place via a movement of the connecting element 05, which is carried out by the actuating unit 03, not shown, in such a way that the end 10 of the connecting element 05 not only crosses the freewheel 09 of the freewheel device 08, but also a pressure force on the freewheel device 08 and thus on trap 06 exercises.
  • the end point of the movement can be identified, for example, by the switching element 18 and the switching lever 17 connected to the switching element.
  • the end point of the movement of the connecting element 05 can be realized by the neutral position of the connecting element.
  • the locking element 04 With the repeated crossing of the rear ramp 06.2 of the latch 06, the locking element 04, in particular the locking bolt 04.1, becomes a Moved far out of the lock 02.
  • the position of the switching lever 17 changes, which can be recognized by the switching element 18 and transmitted accordingly.
  • moving the connecting element 04 out of the lock piece by piece also opens a door gap between the appliance door and the appliance.
  • the transition from the representation of the Fig. 6 to represent the Fig. 7 represents a transfer of the lock 02 in an opening stage, the actuating unit 03, not shown, the connecting element 05 in one in the Fig. 7 shown opening position transferred.
  • the Opening level of the lock 02 the Fig. 7 largely corresponds to the opening level of the lock Fig. 3 , where in contrast to Fig. 3 in the Fig. 7 it is not the locking element 04 entering the lock that causes the movement or deflection of the latch 06, but the transfer of the connecting element into the open position leads to the latch 06 being deflected out of the intermediate latching step against the bias of the elastic element 11.
  • the switching lever 17 of the switching element 18 can again determine and forward completion or completion. For example, it can be provided that as soon as the elastic return element 19 has moved the switching lever 17 of the switching element 18 back into an original or neutral position, the switching lever 17 and the switching element 18 determine or confirm the exit of the closure element 04 from the lock and, if necessary, forward it. Proceeding from this or following it, the connecting element 05 can be transferred into a neutral position via a movement controlled and executed by the actuating unit, in which the latch 06 is returned to the neutral stage by a corresponding movement of the freewheel device 08, as described at the beginning in the context of Fig. 2 has been shown and described.
  • the representation corresponds to Fig. 8 also the representation of the Fig. 2 .
  • This is in the cycle, starting from the Fig. 2 and ending with the Fig. 7 or Fig. 8 , describes a complete transition from an open appliance door to a closed or locked appliance door and back by going through the corresponding intermediate stages, in particular between locking stages of the appliance door.
  • the setting unit 03 is also without the one in the Fig. 1 shown rear wall 03.2 of the housing 03.1 shown.
  • the drive unit 20 acts on the actuator element 24, which is designed as a linear actuator 24 and accordingly executes linear movements in the direction of the movement arrow B.
  • the actuator element 24 is coupled to one end 25 of the connecting element 05, so that the movements carried out by the actuating unit 03, in particular by the actuator element 24, are transmitted to the connecting element 05 and via the connecting element 05 to the lock 02. Both the actuator element 24 and the connecting element 05 move in the direction of the movement arrow B.
  • the Fig. 10 shows a section through a schematically illustrated device 26 according to the invention with a door 27 and a locking device 01 according to the invention.
  • the lock 02 of the locking device 01 is arranged approximately halfway up a door opening 28.
  • the actuating unit 03 is arranged below the door opening 28.
  • the lock 02 and the actuating unit 03 are arranged spatially separated from one another as separate structural units.
  • the particular advantage of this spatial separation and the connection of the lock to the actuating unit via the connecting element 05 is shown in the sketchy representation of FIG Fig. 10 made clear. Because laterally next to the door opening 28 there are further device components inside the device 26. For example, there are heating and ventilation devices 29 as well as operating and control electronics 30.
  • the length of the connecting element 05 is approximately half the height of the appliance door.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Lock And Its Accessories (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Claims (15)

  1. Dispositif de fermeture électromécanique pour portes d'appareils (27), en particulier pour portes (27) d'appareils chauds, le dispositif de fermeture (01) comportant une serrure (02) destinée à recevoir et fixer un élément de fermeture (04), en particulier côté porte, à l'aide d'au moins deux étapes de fermeture et une unité de réglage (03) servant au transfert de la serrure (02) dans au moins une partie des différentes étapes de fermeture, l'unité de réglage (03) et la serrure (02) étant réalisées de manière séparée spatialement en tant qu'unités structurales séparées et l'unité de réglage (03) étant reliée à la serrure (02) par le biais d'un élément de liaison (05),
    caractérisé en ce que
    l'élément de liaison (05) est disposé dans un dispositif de roue libre (08) à une extrémité (10), en particulier à l'extrémité (10) reliée à la serrure (02).
  2. Dispositif de fermeture selon la revendication 1,
    caractérisé en ce que
    le dispositif de roue libre (08) est relié à un pêne (06) de la serrure (02).
  3. Dispositif de fermeture selon la revendication 1 ou 2,
    caractérisé en ce que
    le dispositif de roue libre (08) est dimensionné de telle sorte qu'au moins deux étapes de fermeture de la serrure (02) peuvent être adoptées sans un déplacement de l'élément de liaison (05).
  4. Dispositif de fermeture selon la revendication 3,
    caractérisé en ce
    qu'au moins une étape d'encliquetage intermédiaire et une étape d'ouverture peuvent être adoptées.
  5. Dispositif de fermeture selon l'une des revendications 1 à 4,
    caractérisé en ce que
    la serrure (02) comprend un pêne (06) mobile, en particulier mobile linéairement, pour la réception et la fixation de l'élément de fermeture (04).
  6. Dispositif de fermeture selon la revendication 5,
    caractérisé en ce que
    le pêne (06) est déplaçable parallèlement à une direction de déplacement de l'élément de liaison (05).
  7. Dispositif de fermeture selon la revendication 5 ou 6,
    caractérisé en ce que
    le pêne (06) est précontraint par un élément élastique (11) en direction d'une étape d'encliquetage intermédiaire.
  8. Dispositif de fermeture selon la revendication 7,
    caractérisé en ce que
    l'élément élastique (11) est configuré de telle sorte que, conjointement avec le pêne (06), il peut être transféré de l'étape d'encliquetage intermédiaire à une étape de fermeture sans modification d'un état de contrainte.
  9. Dispositif de fermeture selon l'une des revendications 1 à 8,
    caractérisé en ce que
    l'élément de liaison (05) peut être transféré par l'unité de réglage (03) à une position de verrouillage, la serrure (02) étant transférée d'une étape d'encliquetage intermédiaire à une étape de fermeture, et l'élément de fermeture (04) étant en particulier rentré par traction dans la serrure (02).
  10. Dispositif de fermeture selon l'une des revendications 1 à 9,
    caractérisé en ce que
    l'élément de liaison (05) peut être transféré dans une position d'ouverture par l'unité de réglage (03), la serrure (02) étant transférée d'une étape d'encliquetage intermédiaire à une étape d'ouverture, et l'élément de fermeture (04) sortant en particulier de la serrure (02).
  11. Dispositif de fermeture selon la revendication 9 ou 10,
    caractérisé en ce que
    l'extrémité (10) de l'élément de liaison (05) disposée dans le dispositif de roue libre (08) vient en appui contre des butées (15, 16) se faisant face du dispositif de roue libre (08) dans la position de fermeture et dans la position d'ouverture.
  12. Dispositif de fermeture selon l'une des revendications 1 à 11,
    caractérisé en ce que
    la serrure (02) comprend un élément de commutation (18), en particulier un microrupteur, à l'aide duquel la position de l'élément de fermeture (04) dans la serrure (02) est détectée.
  13. Dispositif de fermeture selon la revendication 12,
    caractérisé en ce que
    l'élément de commutation (18) est relié à un levier de commutation (17), lequel est disposé de telle sorte qu'il est déplacé par l'élément de fermeture (04).
  14. Appareil, en particulier appareil chaud, doté d'une porte d'appareil (27) et d'un élément de fermeture (04), en particulier côté porte,
    caractérisé par
    un dispositif de fermeture électromécanique (01) selon l'une des revendications 1 à 13.
  15. Appareil selon la revendication 14,
    caractérisé en ce que
    la serrure (02) est disposée à mi-hauteur d'une ouverture de porte (28) et l'unité de réglage (03) est disposée dans une région inférieure de l'ouverture de porte (28) ou en dessous de l'ouverture de porte (28).
EP18728025.0A 2017-05-22 2018-05-17 Dispositif de fermeture électromécanique pour portes d'appareils Active EP3631301B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017111166.2A DE102017111166A1 (de) 2017-05-22 2017-05-22 Elektromechanische Verschlusseinrichtung für Gerätetüren
PCT/DE2018/100477 WO2018215022A1 (fr) 2017-05-22 2018-05-17 Dispositif de fermeture électromécanique pour portes d'appareils

Publications (2)

Publication Number Publication Date
EP3631301A1 EP3631301A1 (fr) 2020-04-08
EP3631301B1 true EP3631301B1 (fr) 2021-05-12

Family

ID=62455295

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18728025.0A Active EP3631301B1 (fr) 2017-05-22 2018-05-17 Dispositif de fermeture électromécanique pour portes d'appareils

Country Status (5)

Country Link
EP (1) EP3631301B1 (fr)
DE (1) DE102017111166A1 (fr)
DK (1) DK3631301T3 (fr)
ES (1) ES2878013T3 (fr)
WO (1) WO2018215022A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021128173A1 (de) * 2021-10-28 2023-05-04 Rahrbach Gmbh Türverschluss zum Verschließen einer Tür
US12392497B2 (en) 2022-06-28 2025-08-19 Midea Group Co., Ltd. Oven door alert
US12234995B2 (en) * 2022-06-29 2025-02-25 Midea Group Co., Ltd. On demand oven door lock

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4230350A (en) * 1979-04-05 1980-10-28 Magic Chef, Inc. Oven door latch
FR2639096B1 (fr) * 1988-11-17 1991-01-04 Bourgeois Ste Coop Production Fermeture pour four
DE10027774C2 (de) * 2000-04-20 2003-08-21 Miwe Michael Wenz Gmbh Vorrichtung zum Schließen der Tür eines Ofens und Ofen
DE102004007122B4 (de) * 2004-02-12 2006-11-16 Miele & Cie. Kg Verfahren zum Betreiben eines Gargeräts
DE102006013519A1 (de) * 2006-03-23 2007-10-11 BSH Bosch und Siemens Hausgeräte GmbH Vorrichtung mit einer Gargerätetür, einer Aktoreinheit und einem Verriegelungselement
DE102006019515A1 (de) 2006-04-13 2007-10-18 Rahrbach Gmbh Mehrstufiger Türverschluss
DE102009016812B4 (de) * 2008-04-11 2022-02-03 Rahrbach Gmbh Türverschluss für ein thermisches Gar- und/oder Backgerät
DE102013101947B4 (de) * 2013-02-27 2024-11-07 Rahrbach Gmbh Türverschluss für Gerätetüren, insbesondere von Heiß-, Gar-, Back- oder Kühlgeräten

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE102017111166A1 (de) 2018-11-22
EP3631301A1 (fr) 2020-04-08
WO2018215022A1 (fr) 2018-11-29
DK3631301T3 (da) 2021-06-21
ES2878013T3 (es) 2021-11-18

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