EP1217117A1 - Vorrichtung zum Sperren und Freigeben eines Türschlosses eines elektrischen Gerätes - Google Patents
Vorrichtung zum Sperren und Freigeben eines Türschlosses eines elektrischen Gerätes Download PDFInfo
- Publication number
- EP1217117A1 EP1217117A1 EP00128370A EP00128370A EP1217117A1 EP 1217117 A1 EP1217117 A1 EP 1217117A1 EP 00128370 A EP00128370 A EP 00128370A EP 00128370 A EP00128370 A EP 00128370A EP 1217117 A1 EP1217117 A1 EP 1217117A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- state
- locking
- release unit
- actuator
- release
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S292/00—Closure fasteners
- Y10S292/65—Emergency or safety
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S292/00—Closure fasteners
- Y10S292/69—Washing machine or stove closure latch
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/68—Keepers
- Y10T292/696—With movable dog, catch or striker
- Y10T292/699—Motor controlled
Definitions
- the present invention relates to a locking device and unlocking a door lock or lock for electrical devices and in particular electrical household appliances.
- the present invention relates a device that allows a door lock or a door lock an electrical device, e.g. a washing machine, a dishwasher or dryer, in Lock normal operation to prevent unwanted unlocking or Prevent opening of the door lock or door lock.
- the present invention enables the door lock or the door lock to unlock or open automatically, automatically release when the electrical Device is in an abnormal operating state.
- Locking or locking devices are usually used for this used when or after commissioning an electrical Device with the appliance door closed, a door lock or lock a door lock for the appliance door so that while the electrical device is in operation Door cannot be opened.
- an operating state of the electrical device in which it is provided that the Device door can be opened the door lock or the Door lock released for opening.
- Such an operating condition is generally present when the actual Operation of the electrical device (e.g. washing or drying programs) is finished.
- Such operating conditions can but also during the actual operation of the electrical Device is present when opening the device door safely can be done.
- While the unlocking function of locking or Locking devices are provided in normal operation unlocking a door lock or a door lock normally not by means of such devices more possible if the electrical device deviates from desired operating states in an abnormal operating state located. This is the case, for example, if a failure of the power supply for the electrical device or the electrical device is not connected to an electrical one Energy supply is connected. Locking or Locking devices that prevent unwanted opening of the appliance door of an electrical device in normal operation generally operated using electrical energy. Thus, a failure or lack of electrical leads Power supply to that in normal operation such a device secured or locked device door cannot be opened.
- the bistable element is held in by two independent magnets its first and second positions moved, being for transitions to overcome a snap point between the positions is that used by one as the force generating element Spring is provided.
- a locking bolt is also used there, the locking body by means of the bistable element locked in its closed position and released of the locking body from the bistable element except Engagement with the locking body is brought.
- an emergency release lever is provided to the locking device described there in a as Emergency designated abnormal operating condition of the washing or Dishwasher for a door opening in the open position bring.
- the of a user-operated emergency release lever moves the Locking bolt so that it disengages from the locking body brought.
- the actuation of the emergency release lever can for example by means of a rope or Bowden cable take place, usually to a side wall or the bottom of the washing machine or dishwasher.
- This emergency release also allows the appliance door during normal operation of the washing machine or dishwasher can be opened because a user can independently use a Operation of the emergency release lever by the locking device provided security measures against override any undesired opening of the appliance door can.
- Another disadvantage is that not in one normal operating status of the washing machine or dishwasher the emergency release is to be carried out manually by a user. This turns out to be complicated in part because it is operated of the emergency release lever used trains on difficult to access Positions are arranged. In addition, it is necessary that the user is informed of how a Emergency unlocking is to be carried out.
- thermocouple In normal Operation of a household appliance in which this locking device is used, the thermocouple is under Energy supply heated so that it is the locking element in a Locked position that moves a locking block or a door hook a device door locked to prevent unwanted opening to prevent. Should be in normal operation of the household appliance an opening of the appliance door will be allowed, the release element by means of the electrically activated electromagnet so that it moves the locking element from the locking position in brings a release position. In the release position no operative connection between the locking element and the Closing block or the door hook. In normal operation it will Locking element by the thermocouple in its locked position held that for a suitable heating and the resulting Position electrical energy is supplied.
- thermocouple is also no longer heated.
- thermocouple cools down and goes in its starting position over, whereby the locking element is not is held more in its locked position, but in its Release position passes. In this way, an emergency release provided by a user none Measures to be taken.
- thermocouple is used to bring the locking element into the locking position and in the Hold locked position. Because of the time required, which is needed to heat the thermocouple so that the locking element is brought into the locked position, locked this locking device does not open the appliance door forcibly at the same time as the home appliance is put into operation. Especially with household appliances, where rotating components are used this can be a danger. Because of the delayed A user can lock immediately after a Putting the household appliance into operation Open the door again and be injured by running on rotating components. Furthermore, the thermocouple does not guarantee that the locking element is held securely in its locking position, since this requires the thermocouple during the Normal operation of the household appliance with the supply of energy heat. For example, a failure of the thermocouple or its electrical supply cause the Appliance door released during the operation of the household appliance and can therefore be opened.
- the object of the present invention is a device provide a door lock or door lock an electrical device and in particular an electrical one Household appliance securely locked in place during normal operation prevent unwanted opening of an appliance door and ensures that the appliance door automatically unlocks for opening if the device is in an abnormal operating state located.
- the present invention provides a device for Locking and unlocking an electric door lock Device ready.
- the device according to the invention comprises a Locking and releasing unit that locked the locked in a locked state Door lock of the device locks to unlock to prevent the locked door lock. In a release state enables the locking and release unit to unlock the door lock by pulling the (still locked) Door lock releases.
- the device according to the invention an emergency release unit that is in a non-normal Operating status of the device, e.g. in the event of a power failure, brings the blocking and release unit into the release state.
- the emergency release device becomes independent for this, automatically activated so that no action by one Users are to be performed.
- the use of a unit to lock and unlock the Door lock enables a compact structure of the invention Device and avoids the wear described above in known devices.
- the emergency release unit ensures that the door lock when needed, i.e. in general for an abnormal operating state of the device, for Opening or unlocking is released.
- the emergency release unit preferably separate from the blocking and release unit the characteristics can accordingly their functions can be defined separately. For example can be the amount of time required by the emergency release unit the lock and release unit in the release state bring regardless of the technical specifications of the Locking and release unit specified for specific applications become. Likewise, the times and / or ranges for the states of the blocking and release unit and for transitions between these states regardless of the execution of the Emergency release unit can be specified.
- an active connection can be used with the door lock, when locking the door lock, for example when closing the appliance door, the locking and release unit moved to the locked state.
- This is preferred essentially immediately after or simultaneously with the actual locking of the door lock.
- Components such as electromagnetic or piezostrictive Components that are used to transition the To effect locking and release unit in the locked state. This also ensures that the actual Lock the appliance door, i.e. when locking the door lock, the door lock is locked.
- the blocking and release unit goes into the blocked state, if due to the operation of the device a condition for the Door lock is present in which this is to be locked.
- Electric controlled actuators e.g. (Miniaturized) electric drives, electromagnets or piezostrictive acting components, are used.
- This embodiment allows the door lock and thus the appliance door to be able to open for a long time until the device is actually in operation is taken. It is also possible to change the Locking and releasing unit in the locked state in relation delayed commissioning of the device. In this way it is possible to lock the door lock only to be carried out when the appliance door is actually opened is undesirable or actually represents a danger.
- the door lock only be locked when the water level in the washing machine has reached a level at which opening the Washer door would cause water to leak.
- a washing program has already started.
- Such a refill requires currently usually a termination of the selected washing program, being already put in the washing machine Water must be removed (pumped out).
- emergency unlocking devices which can be operated manually by a user used improperly.
- the emergency release unit has an idle state and a working state on, with a transition from the working state in the idle state the blocking and release unit in the Release status is brought.
- the emergency release unit is in the Working state if during normal operation of the electrical Device the locking and release unit in its locked state located.
- the emergency release unit in the Work status can be brought up by using a suitable operative connection with the blocking and release unit the emergency release unit from the idle state to the working state brought when the locking and release unit in passes its locked state.
- the emergency release unit is preferably in the normal position Operation of the electrical device in the idle state when the locking and release unit is in the release state. Consequently, it is envisaged that the emergency release unit in response to normal operation of the electrical device on a transition of the blocking and release unit from the Lock state changes to the release state in the idle state. This can be done, for example, by means of an active connection, preferably the above-mentioned operative connection between the Emergency release unit and the lock release unit performed so that the state transitions of the units essentially run synchronously. Alternatively, the transition from Emergency release unit controlled in its idle state or uncontrolled take place with a time delay.
- the actuator implemented force-generating element e.g. a feather, used.
- the actuator is activated when the electrical device activated so that it is the emergency release unit brings into the working state (moved). Should the emergency release unit in a normal operating condition of the electrical The device goes into idle state, the actuator deactivated and the force-generating element effects the desired Change of state.
- the actuator is to be arranged and / or a suitable one Actuator type to use that is an abnormal operating condition of the electrical device also a deactivation of the Actuator.
- the emergency release unit is preferred one or, if necessary, several actuators includes the transition (s) into the working state and into the Hibernation causes.
- the device includes the emergency release unit Emergency energy supply device for the actuator making a transition effected in the idle state, or for the force-generating Element.
- the emergency energy supply device leads to a transition not in the idle state of the emergency release unit normal operating state of the electrical device this actuator or energy to the force-generating element to activate.
- the emergency power supply can also be used to be in normal operation of the electrical Device to activate the actuator or the force-generating element, it is generally intended that these Energy supply is carried out by means of devices that a normal operation for the energy supply of the electrical Device can be used.
- the emergency release unit can be an energy supply device include that during normal operation of the electrical Device causing a transition to the working state Actuator for activating the same energy. Dependent on of how transitions to work and rest states generated, this energy supply device is optional or in addition to the emergency energy supply device his. Furthermore, there is provision for a combined energy supply component to use the functions of the emergency power supply device and provides the energy supply device.
- the actuator (s) comprise the emergency release unit a thermally sensitive, thermally actuated Element such as a PCT element, elements with bimetallic Components or a wax motor.
- the actuator activated by supplying it with electrical energy to heat the thermally sensitive element.
- the one change in state or position caused by such heating of the actuator (movement of the actuator) is by means of suitable Active connections with corresponding, not specified here movable components of the emergency release unit for Transitions to work and / or hibernation are used.
- a wax motor offers due to its high coefficient of thermal expansion on.
- the actuator (s) can be an electric motor, an electromagnetic actuator or comprise at least one magnet.
- Emergency energy supply device a capacitor, an accumulator, comprise a solar cell or combinations thereof.
- the emergency power supply device during normal operation of the electrical device Energy absorbs or stores it in a non-normal way Provide operating status.
- the invention includes Device a release device for the Emergency release unit, which depends on parameters that an abnormal operating state of the electrical device characterize a transition of the emergency release unit into whose idle state enables. The parameters for controlling the If an electrical power supply, for example the emergency energy supply device and / or the energy supply device of the emergency release unit, is available, by electrical means or by means of a mechanical arrangement (e.g. float for water level detection) to be provided.
- a mechanical arrangement e.g. float for water level detection
- FIG. 1a to 1d show a known door lock 2 with a an axis 4 rotatable gripping device 6 formed therein has a trap 8.
- the trap 8 works with one Locking block 10 together so that movement of the locking block 10 when closing an appliance door, not shown Gripping device 6 rotates so that the door lock 2 locks becomes. A corresponding movement turns when the appliance door is opened of the locking block 10, the gripping device 6 in a Comparison to closing opposite direction of rotation, whereby the door lock 2 is unlocked.
- FIGS. 1a to 1d show components 14 to 34 one Locking and releasing unit 12 and components 36 to 52 one Emergency release unit 14 for one embodiment of a device to lock and unlock the door lock 2.
- the components the blocking and release and emergency release units 12 and 14 will be explained with reference to Fig. 1a. For the Description of the operation of this embodiment will be made on 1a to 1d referenced.
- the locking and release unit 12 has an electromagnetic Actuator 16 and a magnetic plunger movable by this 18 on. 1a to 1d, the magnetic plunger is 18th movable left and right.
- the magnetic plunger 18 engages one end of a lever 22 rotatable about an axis 20.
- the Lever 22 is a bistable element formed by a spring 24 are biased in two positions described below can.
- the spring 24 is arranged here so that Transitions of the lever 22 between its positions required Forces at least partially provided by the spring 24 become. This is achieved by moving potential of the lever 22 stored in the spring 24 Energy after overcoming a snap point in kinetic Energy is converted to forces in the original direction of movement to provide the lever 22.
- the design of the lever 22 as a bistable element is reduced that required for the electromagnetic actuator 16 Energy since the electromagnetic actuator 16 does not need to hold the lever 22 in one of the positions.
- the opposite the lever 22 can also be a conventional lever, if the electromagnetic actuator 16 and / or the magnetic plunger 18 and / or other devices not shown, that the lever assumes and maintains 22 positions, the, as described below, for the operation of the Locking and releasing unit 12 are required.
- One that is operatively connected to the magnetic plunger 18 End opposite end of the lever 22 is by means of a articulated connection 26 with an end 28 of a locking and Release element 30 connected. That executed here as a slide Locking and releasing element 30 points in the area of the door lock 2 a blocking area 32.
- One opposite the end 28 End 34 is used to operate the locking and Release element 30 by the emergency release unit 14 to how explained below, the locking and release unit 12 at an abnormal operating state of an electrical device, whose appliance door locks and unlocks with the door lock 2 can be, the door lock 2 for unlocking release.
- the emergency release unit 14 comprises a rotatable around an axis 36 Lever 38, which has an end 40 at an abnormal Operation of the electrical device through an active connection with the end 34 can operate the locking and release unit 12.
- An end 42 opposite the end 40 has a nose 44 on, which serves to fasten one end of a tension spring 46.
- the other end of the tension spring 46 is on a mounting flange 48 attached to a housing according to FIGS. 1a to 1d (not designated) a thermally sensitive, thermally activatable actuator 50 is attached.
- the mounting flange 48 can also be another fastener can be used, for example on a frame for individual, several or all of the components shown in FIGS. 1a to 1d is appropriate.
- the actuator 50 here comprises a wax motor which due to used its high coefficient of thermal expansion becomes.
- the actuator 50 can be supplied by electrical or thermal energy are heated, whereby the wax expands, around a slidable member 52 connected thereto to move.
- an operative connection can be established with the lever 38, the "emergency" release of the door lock described below 2 in the event of an abnormal operating state of the electrical Device.
- the appliance door is open, which is why the locking block 10 does not engage with the trap 8. Accordingly, the door lock 2 unlocked.
- the lever 22 is in position by the spring 24 held for the release position, whereby the locking and Release element 30 and in particular the blocking surface 32 thus positioned are that for closing and locking the appliance door the locking block 10 inserted into the trap 8 and the Gripping device 6 can be rotated.
- the actuator 50 is in the idle state of the emergency release unit 14 not activated, whereby the sliding member 52 in the rest position shown in Fig. 1a.
- the mainspring 46 holds the lever 38 in the position shown there, the Slidable member 52 and / or the end 34 as a stop for serve the lever 38.
- Such a stop can also be caused by a separately executed stop element (not shown) provided become.
- the locking and release unit 12 is activated to the door lock 2 to lock, more precisely a rotation of the gripping device 6 to prevent. It is provided that the locking and Release unit 12 essentially immediately at the same time the locking of the door lock 2, according to a predetermined Duration or depending on an operating state of the electrical device is operated.
- the electromagnetic Actuator 16 activated. This will make the magnet plunger 18 in Fig. 1b moved to the left, whereby the lever 22 around the Axis 20 rotated into the position shown there and in this held by the spring 24 and / or the magnetic plunger 18 becomes.
- the rotation of the lever 22 causes the locking and displacement Release element 30 to the right, creating the restricted area 32 assumes a position, one for unlocking the door lock 2 required rotation of the gripping device 6 prevented.
- rotations that actually unlock of the door lock 2 are necessary due to the restricted area 32 can be prevented.
- the actuator 50 can essentially coincide with the electromagnetic actuator 16 or according to a predetermined time delay activated, i.e. energized become.
- the actuator 50 in front of a Activation of the electromagnetic actuator 16 activated will that before a shift of the locking and release element 30 the slidable member 52 shifted to the left becomes.
- the lever 38 can be the one shown in FIG. 1b Working position before actuation by the blocking and Take release unit 12.
- the Energy supply for the actuator 50 interrupted / ended.
- the the lack of energy supply causes the actuator 50 to cool down and thereby moving the slidable member 52 to the right becomes.
- the one required for such a cooling process Duration leads to the sliding member 52 still in the working position shown in Fig. 1d, the Position in Fig. 1c corresponds when the locking and Release unit 12 has already passed into its release state is.
- the power supply to the actuator 50 is interrupted.
- This Power supply interruption can be controlled if an operating state by means not shown here is detected by the blocking and releasing unit 12 to release the door lock 2 can no longer be actuated can. In the event of a power failure or a lack of energy supply the power supply is interrupted for the electrical device for the actuator 50 automatically.
- an actuator can be used which, comparable to the tension spring 46, cooperates with the end 42 and at one Interruption of the energy supply and the resulting Cooling turns lever 38 clockwise (pulls).
- an actuator with a wax motor can be used here unlike what was described earlier Wax motor, with a supply of electrical or thermal Energy an actuator (comparable to the sliding Link 52) in a direction opposite to that described above Movement of the slidable member 52 at one Activation of the actuator 50 moves ("pulls into the actuator"). Accordingly, deactivation of this actuator, i.e. an interruption in the energy supply, the actuator move in a direction that is essentially the Direction of movement of the displaceable member 52 when deactivated of the actuator 50 corresponds to ("a movement from the actuator out ").
- an actuator can be used, which is in a abnormal operating condition of the electrical device compressive forces exerts on the end 42 to rotate the lever 38.
- the actuator is for an abnormal operating state to supply the electrical device with energy, the desired thermal expansion to rotate the To reach lever 38.
- an energy supply required independent energy in such cases can provide.
- Such an energy supply can, for example through an appropriately dimensioned storage capacitor be provided during a normal Operation of the electrical device is charged.
- a not shown Release device for the emergency release unit 14 used become.
- Such a release device acts in dependence of parameters that reflect the current abnormal operating condition characterize the electrical device, so together with the emergency release unit 14 that a release of the Door lock 2 can be prevented by the emergency release unit 14 can.
- the release device can, for example have a lever or pin in such operating conditions a transition of the emergency release unit 14 from her Working state mechanically prevented in its idle state.
- Dependence on the embodiment of the emergency release unit used 14 can the release device depending on the the current release of the emergency release unit 14 by a corresponding activation in their working state hold or prevent activation of the same.
- an energy supply device that is comparable to the power supply of the last explained embodiment the emergency release unit 14 regardless of a power supply can supply energy for the electrical device.
- the mirrored in relation to the representations of FIGS. 1a to 1d shown are the components that are described above Components correspond with the same reference numerals Mistake.
- This embodiment differs from the above in that the emergency release device 14 is an actuator 54, which has a hinge 56 with the End 40 is connected.
- a spring 60 creates one on the Actuator 54 counterclockwise torque and a compressive force acting in the plane of the drawing.
- the Compressive force can also be caused by an elastic deformation of the actuator 53 and / or the lever 38 are provided.
- this embodiment comprises a backdrop guide 62, for example on a mounting frame for the Emergency release unit 14 is attached.
- the schematic in Fig. 3 Set guide 62 shown has a not designated Recess on that is essentially horizontal extending guide channel 64 and an associated in substantially vertical guide channel 66, which merges into a curved guide channel 68, which additionally connects the guide channels 64 and 66.
- the curved guide channel 68 includes a slope 70 that starts out rising from the level of the guide channel 66 (slightly) runs to an edge 72.
- One arranged in the recess Web 74 forms an edge boundary together with edge 72 of the guide channel 64.
- the door lock 2 In the state shown in FIG. 2a, the door lock 2 is unlocked, the locking and release unit 12 being in the release state and the emergency release unit 14 are in the idle state.
- the pin 58 is located on the one in FIG. 3 position labeled I.
- Fig. 2b shows a state in which the door lock 2 locks is and the locking and release unit 12 in its locked state located. Contrary to that with reference to 1a to 1d explained embodiment causes the Transition of the locking and release unit 12 into the locked state here no actuation of the lever 38. Rather, the Lever 38 rotated when the slidable member 52 due to an activation of the actuator 50 moves to the right Has.
- Movement of the slidable member 52 causes rotation the lever 38 clockwise, with the pin 58 in the curved guide channel 68 starting from position I in the direction given by arrow P1 to position II is moved (see Fig. 3). With this movement, the pen 58 led from the slope 70 to the edge 72, behind the it due to the compressive force of the spring 60 on the level of the bottom surface of the guide channel 64 jumps. Is the Pin 58 at position II shown in Fig. 3 is the emergency release unit 14 in its working state shown in FIG. 2c passed.
- the pin 58 Because of the boundary formed by the edge 72 and the web 74 of the guide channel 64 is the pin 58 in this led to position III.
- the pin 58 is located on the Position III, i.e. at the transition between the guide channel 64 and the guide channel 66, the spring 60 causes rotation of the actuator counterclockwise and thus a movement in the direction of arrow P2 to position I.
- the emergency release unit 14 is then located in the position shown in FIG. 2a shown idle state.
- An advantage of this embodiment is that when Locking the door lock 2 by the electromagnetic actuator 16 and / or the spring 24 only the forces are to be generated, for actuation / movement of the locking and release unit 12 are required. Forces required for a rotation of the Lever 38 required against the force of the tension spring 46 in this case will not be blocked by the blocking and release unit 12 provided. This can in terms of interpretation of the electromagnetic actuator 16 and / or the spring 24 be advantageous.
- Another advantage is that the emergency release unit 14 essentially independent of the locking and release unit 12 works. Accordingly, this is also a reliable one Locking the door lock 2 ensures when the emergency release unit 14 does not work correctly, for example if due to a defect in the actuator 50 the working state is maintained.
- the Function of the locking and release element 30 of FIGS. 1 and 2 provided by a locking slide 80.
- Fig. 4a, 4b and 4f is the locking slide 80 in a release position in which a door lock, not shown here can be unlocked.
- the locking slide 80 a stop 82, wherein one between the locking slide 80 and another Stop 84 arranged compression spring 86 the locking slide 80 secures in the release position.
- This backup function the compression spring 86 is only one feature here because the Compression spring 86, as described below, also serves the locking slide 80 in both normal operation as well as during an abnormal operation of an electrical Device using this embodiment a locking position described below in the release position bring to.
- the locking slide 80 is by means of an actuator 88 of an electromagnetic actuator 90 actuated.
- the function of the electromagnetic actuator 90 corresponds essentially to the function of the electromagnetic Actuator 16 and is used to lock the slider 80 from the release position into one shown in FIG. 4d Bring locked position.
- a pawl movably and rotatably arranged on an axis 92 94 acts with one on the top of the locking slide 80 arranged guide 96 together.
- the Operation of the pawl 94 and the link guide 96 will be described in more detail below with reference to FIG. 5 explained.
- the pawl 94 is connected to a tension spring 98, which exerts 94 forces on the pawl that has an end 100 of the pawl 94 in the direction of the link guide 96 pulling surface of the locking slide 80 pull.
- the tension spring 98 is arranged so that its forces with respect to axis 92, rotation of end 100 against Clockwise (i.e. a rotation of the end 100 4a-4f in the direction of the viewer).
- the emergency release unit comprises in this embodiment a thermally sensitive thermally activatable actuator 102 with a Wax motor.
- the actuator 102 is slidable Link 104 connected by contact with an angled here End 106 of the pawl 94 this in the in Fig. 4a position shown holds.
- the actuator 102 in the idle state described above and accordingly the displaceable member 104 has taken a rest position.
- an actuator 102 and in particular a type of wax motor used in one not activated state i.e. in the case of missing or interrupted Energy supply
- the electromagnetic Actuator 90 activated, causing the actuator 88 moves the locking slide 80 to the right.
- the necessary contact of the actuator 88 with the locking slide 80 can already be at one non-activated state of the electromagnetic actuator 90 are present or, as shown, when the same is activated getting produced.
- the actuator 102 activates, i.e. in its working state is brought to the sliding member 104 in the in Fig. 4b to bring the working position shown.
- the time of activation of the Actuator 102 is the time of activation of the Actuator 102 relative to the activation time for the electromagnetic actuator 90 to choose.
- the electromagnetic pushes Actuator 90 the locking slide 80 in the position shown in Fig. 4c, which is further to the right than that 4d shown locking position of the locking slide 80.
- This movement of the locking slide 80 over the Locked position is due to that explained below Link guide 96 required to an operative connection of the End 100 to produce with the backdrop guide 96, the Locking slide 80 in the locked position according to FIG. 4d holds.
- Such a movement of the locking slide 80 can be omitted if other suitable slide guides are used become.
- the electromagnetic actuator 90 has the locking slide 80 brought into the position shown in Fig. 4c, for example by the length of the actuator 88 and / or a stop not shown here can be defined, the electromagnetic actuator 90 is deactivated again. Accordingly, the actuator 88 gives the locking slide 80 free from the compression spring 86 to the left and moved into the locking position shown in Fig. 4d. in this connection the blocking position is achieved by the cooperation of the end 100 the pawl 94 maintained with the link guide 96.
- the electromagnetic one Actuator 90 reactivated. Subsequently moved the actuator 88 the locking slide 80 from the latter Locked position to the right in the position shown in Fig. 4e. Corresponds to the backdrop guide 96 used this position essentially the position shown in Fig. 4c. This movement of the locking slide 80 is also required here for an operative connection of the end 100 of the To reach pawl 94 and the link guide 96 for a transition of the locking slide 80 from the Lock position in the release position is required.
- the electromagnetic actuator 90 is deactivated and due to movement of the actuator 88 to the right the locking slide 80 released. is the locking slide 80 released, moves the compression spring 86 the locking slide 80 to the left, due to the design of the link guide 96, the pawl 94 takes the position shown in Fig. 4f, here for one Transition of the locking slide 80 into the release position is required.
- the door lock is for Unlocked released.
- the actuator 102 essentially becomes deactivated at the same time or after a predetermined period of time.
- the actuator serves to effect the state shown in FIG. 4a 102.
- the operating state of the electrical device becomes the actuator 102 deactivated. This deactivation can, for example in the event of a power failure inherently from the abnormal Operating state result or take place if for example, an incorrect operating procedure has occurred is where unlocking the door lock is required or is desired.
- the deactivation of the actuator 102 leads to a shift of the movable member 104 to the left. Actuated the slidable member 104 the end 106 of the pawl 94 so that this starting from the position shown in Fig. 4d is brought into the position shown in Fig. 4a. This change of position the pawl 94 releases the Locking slide 80 due to a missing operative connection between the end 100 and the backdrop guide 96. Accordingly the compression spring 86 moves the locking slide 80 in its release position, whereby the one shown in Fig. 4a Condition is reached. The door lock is in this state released and can be unlocked.
- the electromagnetic Actuator 90 For a transition of the locking slide 80 into the release position, becomes, as described above, the electromagnetic Actuator 90 reactivated. This results in a 5 to the left, wherein the tension spring 98 rotates the pawl 94 about the axis 92. As a result, the end 100 moves relative to the backdrop guide along arrow P3 to position V.
- the following Deactivation of the electromagnetic actuator 90 gives the Locking slide 80 free, which is due to the pressure spring 86 generated force according to FIG. 5 a movement of the link guide 96 to the right. That moves End 100 of the pawl 94 along the arrow P4 over a inclined surface 112 and a substantially horizontally shown Area 114 to an edge 116. Due to the of the tensile forces generated 98 "jumps" the end 100 after edge 116 down and reached due to the movement of the locking slide 80 position II. The deactivation of actuator 102 causes the end to move 100 from position II to position I.
- the actuator 102 deactivates the pawl 94 to operate. Because of the electromagnetic actuator 90 caused locking of the door lock is located the end 100 of the pawl at position IV. The actuation the pawl 94 by the deactivated actuator 102 causes end 100 to move in the direction of the arrow P5 to position VI. Due to the movement of the locking slide 80 results from the force of the compression spring 86 a movement of the end 100 relative to the link guide in the direction of arrow P6 to position I.
- An advantage of that explained with reference to Figures 4a-4f Embodiment consists in that in order to maintain the locked state, i.e. the locking position of the locking slide 80 it is not necessary to use the electromagnetic actuator 90 to keep in an activated state and / or facility to use the function described above bistable element 22 provides.
Abstract
Description
- Fig. 1a-1d
- eine Ausführungsform der erfindungsgemäßen Vorrichtung,
- Fig. 2a-2d
- eine weitere Ausführungsform der erfindungsgemäßen Vorrichtung,
- Fig. 3
- eine schematische Darstellung einer bei der Ausführungsform von Fig. 2a-2d verwendeten Kulissenführung,
- Fig. 4a-4f
- eine weitere Ausführungsform der erfindungsgemäßen Vorrichtung, und
- Fig. 5
- eine perspektivische Ansicht einer bei der Ausführungsform von Fig. 4a-4f verwendeten Kulissenführung.
Claims (15)
- Vorrichtung zum Sperren und Freigeben eines Türschlosses eines elektrischen Gerätes, mit:einer Sperr- und Freigabeeinheit (12), die in einem Sperrzustand ein verriegeltes Türschloß (2) eines elektrischen Gerätes sperrt und in einem Freigabezustand ein Entriegeln des Türschlosses ermöglicht, undeiner Notfreigabeeinheit (14), die in einem nicht normalen Betriebszustand des elektrischen Gerätes die Sperr- und Freigabeeinheit (12) in den Freigabezustand bringt.
- Vorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, daß:die Sperr- und Freigabeeinheit (12) den Sperrzustand mittels einer Wirkverbindung mit dem Türschloß (2) in Antwort auf dessen Verriegelung einnimmt, oderdie Sperr- und Freigabeeinheit (12) bei einem verriegelten Zustand des Türschlosses (2) den Sperrzustand gesteuert einnimmt.
- Vorrichtung gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, daß:die Sperr- und Freigabeeinheit (12) den Freigabezustand bei einem Betriebszustand des elektrischen Gerätes einnimmt, für den eine Entriegelung des Türschlosses (2) gewünscht und/oder zulässig ist.
- Vorrichtung gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeit, daß:die Sperr- und Freigabeeinheit (12) einen elektromagnetischen Aktuator (16) für einen Übergang aus dem Sperrzustand in den Freigabezustand umfaßt.
- Vorrichtung gemäß Anspruch 4, dadurch gekennzeichnet, daß:der elektromagnetische Aktuator (16) ausgelegt ist, einen Übergang aus dem Freigabezustand in den Sperrzustand zu bewirken.
- Vorrichtung gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß:die Notfreigabeeinheit (14) einen Ruhezustand und einen Arbeitszustand aufweist, wobei die Notfreigabeeinheit (14) bei einem Übergang aus dem Arbeitszustand in den Ruhezustand die Sperr- und Freigabeeinheit (12) in den Freigabezustand bringt.
- Vorrichtung gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß:die Notfreigabeeinheit (14) mittels einer Wirkverbindung mit der Sperr- und Freigabeeinheit (12) in Antwort auf deren Übergang in den Sperrzustand den Arbeitszustand einnimmt.
- Vorrichtung gemäß einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß:die Notfreigabeeinheit (14) den Arbeitszustand gesteuert einnimmt, wenn sich die Sperr- und Freigabeeinheit (12) in dem Sperrzustand befindet oder bevor die Sperr- und Freigabeeinheit (12) den Sperrzustand einnimmt.
- Vorrichtung gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß:die Notfreigabeeinheit (14) bei einem normalen Betrieb des elektrischen Gerätes in Antwort auf einen Übergang der Sperrund Freigabeeinheit (12) aus dem Sperrzustand in den Freigabezustand ihren Ruhezustand einnimmt.
- Vorrichtung gemäß einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß:die Notfreigabeeinheit (14) einen Aktuator (50), um einen Übergang in den Arbeitszustand zu bewirken, und ein krafterzeugendes Element (46) umfaßt, um einen Übergang in den Ruhezustand zu bewirken.
- Vorrichtung gemäß einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß:die Notfreigabeeinheit (14) einen Aktuator (50), um einen Übergang in den Ruhezustand zu bewirken, und ein krafterzeugendes Element (46) umfaßt, um einen Übergang in den Arbeitszustand zu bewirken.
- Vorrichtung gemäß Anspruch 10 oder 11, dadurch gekennzeichnet, daß:das krafterzeugende Element (46) eine Feder ist.
- Vorrichtung gemäß einem der Ansprüche 10 bis 12, dadurch gekennzeichnet, daß:Der Aktuator (50) ein thermisch empfindliches Element, ein Thermoelement oder einen Wachsmotor umfaßt.
- Vorrichtung gemäß einem der Ansprüche 10 bis 13, dadurch gekennzeichnet, daß:die Notfreigabeeinheit (14) eine Energiezufuhreinrichtung für den Aktuator (50) umfaßt, die ausgelegt ist, bei einem nicht normalen Betrieb des elektrischen Gerätes zum Aktivieren des Aktuators (50) diesem Energie zuzuführen.
- Vorrichtung gemäß einem der vorhergehenden Ansprüche, gekennzeichnet durch:eine Freigabeeinrichtung für die Notfreigabeeinheit (14), die in Abhängigkeit von Parametern, die einen nicht normalen Betriebszustand des elektrischen Gerätes charakterisieren, einen Übergang der Notfreigabeeinheit (14) in den Ruhezustand zuläßt.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50009661T DE50009661D1 (de) | 2000-12-22 | 2000-12-22 | Vorrichtung zum Sperren und Freigeben eines Türschlosses eines elektrischen Gerätes |
EP00128370A EP1217117B1 (de) | 2000-12-22 | 2000-12-22 | Vorrichtung zum Sperren und Freigeben eines Türschlosses eines elektrischen Gerätes |
US10/016,526 US6840553B2 (en) | 2000-12-22 | 2001-12-10 | Apparatus for blocking and releasing a door lock of an electrical appliance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00128370A EP1217117B1 (de) | 2000-12-22 | 2000-12-22 | Vorrichtung zum Sperren und Freigeben eines Türschlosses eines elektrischen Gerätes |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1217117A1 true EP1217117A1 (de) | 2002-06-26 |
EP1217117B1 EP1217117B1 (de) | 2005-03-02 |
Family
ID=8170795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00128370A Expired - Lifetime EP1217117B1 (de) | 2000-12-22 | 2000-12-22 | Vorrichtung zum Sperren und Freigeben eines Türschlosses eines elektrischen Gerätes |
Country Status (3)
Country | Link |
---|---|
US (1) | US6840553B2 (de) |
EP (1) | EP1217117B1 (de) |
DE (1) | DE50009661D1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1433893A2 (de) * | 2002-12-23 | 2004-06-30 | BITRON S.p.A. | Türverriegelungsvorrichtung, insbesondere für ein elektrisches Haushaltsgerät |
EP1460163A2 (de) * | 2003-03-19 | 2004-09-22 | Miele & Cie. KG | Türverriegelung für elektrische Geräte, insbesondere für Waschmaschinen |
US7306266B2 (en) | 2004-03-05 | 2007-12-11 | Illinois Tool Works, Inc. | Appliance latch having a rotating latch hook mounted on a linear slide |
WO2009061628A1 (en) * | 2007-11-06 | 2009-05-14 | Illinois Tool Works Inc. | Appliance latch with compact form factor |
WO2013131822A3 (de) * | 2012-03-06 | 2013-10-31 | BSH Bosch und Siemens Hausgeräte GmbH | Haushaltsgerät |
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Publication number | Priority date | Publication date | Assignee | Title |
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US7089948B2 (en) * | 2002-05-03 | 2006-08-15 | Whirlpool Corporation | In-sink dishwasher with integrated latch |
JP4084694B2 (ja) * | 2003-04-22 | 2008-04-30 | シャープ株式会社 | 洗濯機 |
US7900979B2 (en) * | 2003-06-27 | 2011-03-08 | Illinois Tool Works, Inc. | Low power consumption lock for appliance latch |
ATE371076T1 (de) * | 2003-11-14 | 2007-09-15 | Bsh Bosch Siemens Hausgeraete | Elektrisches haushaltsgerät mit kindersicherung |
US6940373B2 (en) * | 2003-11-21 | 2005-09-06 | Ark-Les Corporation | Fast engage, slow release electrical actuator |
DE602004004099T2 (de) * | 2004-07-13 | 2007-08-09 | C.R.F. S.C.P.A. | Maschine zum Waschen und/oder Trocknen von Wäsche, mit einer elektrisch betätigbaren Verriegelungs-/Entriegelungsvorrichtung der Tür |
US8215135B2 (en) * | 2007-04-20 | 2012-07-10 | Illinois Tool Works, Inc. | Appliance latch with power failure unlock |
ITTO20070476A1 (it) * | 2007-06-29 | 2008-12-30 | Itw Metalflex Druzba Za Proizv | Dispositivo elettromagnetico di bloccaggio per una porta di un elettrodomestico, in particolare un oblo' di una lavatrice |
ITTO20070501A1 (it) * | 2007-07-10 | 2009-01-11 | Indesit Co Spa | Dispositivo e metodo per bloccare e sbloccare la porta di un elettrodomestico |
US8152208B2 (en) * | 2009-04-21 | 2012-04-10 | Cosco Management, Inc. | Panel lock |
WO2011126270A1 (en) * | 2010-04-05 | 2011-10-13 | Lg Electronics Inc. | Apparatus for treating laundry and method for controlling the same |
IT1399631B1 (it) * | 2010-04-21 | 2013-04-26 | Elettrotecnica Rold Srl | Dispositivo di chiusura "push-pull" |
GB2527735B (en) * | 2014-05-04 | 2020-10-28 | The Haigh Eng Company Ltd | Lid interlock apparatus |
US9779597B2 (en) * | 2014-07-10 | 2017-10-03 | Nova Products, Inc. | Method of operating a security system with deterrent capability for intimidation and neutralization |
CZ28601U1 (cs) * | 2015-05-14 | 2015-09-07 | Alliance Laundry Ce S.R.O. | Bezpečnostní zařízení pro detekci zajištění dveří pracího bubnu pračky |
WO2017070319A1 (en) | 2015-10-21 | 2017-04-27 | Illinois Tool Works Inc. | Warewasher idling system and method |
DE102017006642B4 (de) * | 2017-07-13 | 2022-07-07 | Emz-Hanauer Gmbh & Co. Kgaa | Überhub-Türverschluss mit Verriegelungsmechanismus |
DE102019211281A1 (de) * | 2019-07-30 | 2021-02-04 | BSH Hausgeräte GmbH | System zum Betrieb einer Riegelvorrichtung |
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-
2001
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GB2080399A (en) * | 1980-07-24 | 1982-02-03 | Zanussi Grandi Impianti Spa | Safety device for a door fastening |
US5520424A (en) * | 1995-01-30 | 1996-05-28 | U.S. Controls Copr. | Tamper-proof door switch and latch device |
US5823017A (en) * | 1996-12-10 | 1998-10-20 | U.S. Controls Corporation | Rapid release washing machine lid lock |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1433893A2 (de) * | 2002-12-23 | 2004-06-30 | BITRON S.p.A. | Türverriegelungsvorrichtung, insbesondere für ein elektrisches Haushaltsgerät |
EP1433893A3 (de) * | 2002-12-23 | 2004-08-11 | BITRON S.p.A. | Türverriegelungsvorrichtung, insbesondere für ein elektrisches Haushaltsgerät |
EP1460163A2 (de) * | 2003-03-19 | 2004-09-22 | Miele & Cie. KG | Türverriegelung für elektrische Geräte, insbesondere für Waschmaschinen |
DE10312305B4 (de) * | 2003-03-19 | 2006-09-21 | Miele & Cie. Kg | Türverriegelung für elektrische Geräte, insbesondere für Waschmaschinen |
EP1460163A3 (de) * | 2003-03-19 | 2008-05-21 | Miele & Cie. KG | Türverriegelung für elektrische Geräte, insbesondere für Waschmaschinen |
US7306266B2 (en) | 2004-03-05 | 2007-12-11 | Illinois Tool Works, Inc. | Appliance latch having a rotating latch hook mounted on a linear slide |
WO2009061628A1 (en) * | 2007-11-06 | 2009-05-14 | Illinois Tool Works Inc. | Appliance latch with compact form factor |
WO2013131822A3 (de) * | 2012-03-06 | 2013-10-31 | BSH Bosch und Siemens Hausgeräte GmbH | Haushaltsgerät |
RU2584671C2 (ru) * | 2012-03-06 | 2016-05-20 | Бсх Хаусгерете Гмбх | Бытовой прибор |
Also Published As
Publication number | Publication date |
---|---|
US6840553B2 (en) | 2005-01-11 |
US20020101313A1 (en) | 2002-08-01 |
DE50009661D1 (de) | 2005-04-07 |
EP1217117B1 (de) | 2005-03-02 |
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