EP2497854A1 - Agencement de verrouillage d'une porte d'un appareil ménager ainsi qu'appareil ménager - Google Patents

Agencement de verrouillage d'une porte d'un appareil ménager ainsi qu'appareil ménager Download PDF

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Publication number
EP2497854A1
EP2497854A1 EP12155701A EP12155701A EP2497854A1 EP 2497854 A1 EP2497854 A1 EP 2497854A1 EP 12155701 A EP12155701 A EP 12155701A EP 12155701 A EP12155701 A EP 12155701A EP 2497854 A1 EP2497854 A1 EP 2497854A1
Authority
EP
European Patent Office
Prior art keywords
locking
door
locking element
drive unit
open position
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12155701A
Other languages
German (de)
English (en)
Other versions
EP2497854B1 (fr
Inventor
Markus Höpfl
Walter Lippert
Jochen Müller
Karlheinz Rehm
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to PL12155701T priority Critical patent/PL2497854T3/pl
Publication of EP2497854A1 publication Critical patent/EP2497854A1/fr
Application granted granted Critical
Publication of EP2497854B1 publication Critical patent/EP2497854B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12—Casings; Tubs
    • D06F39/14—Doors or covers; Securing means therefor
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/20—Parameters relating to constructional components, e.g. door sensors

Definitions

  • the invention relates to a locking arrangement for locking a door of a household appliance, in particular a dishwasher, wherein the locking arrangement on the door or on a door-carrying body of the household appliance can be fastened, wherein the locking arrangement comprises a locking element which between an open position and a locking position, in it is movable with a holding element on the body or on the door is engageable, and wherein the locking arrangement comprises a force accumulator, which acts on the locking element with a closing force by means of which it is movable from the open position to the locking position.
  • a household appliance with a body and a door which is movable between an open position and a closed position in which the body is closed by means of the door, wherein the household appliance has a locking arrangement, with the help of the door in the closed position is locked.
  • the object of the invention is therefore to propose an improved locking arrangement for a door of a household appliance, in particular a dishwasher.
  • the proposed locking arrangement according to the invention is characterized in that it next to the said energy storage, which acts on the locking element with a closing force, by means of which it is movable from the open position to the locking position, a drive unit, with the aid of the locking element of the locking position against the closing force is movable into the open position.
  • the locking arrangement according to the invention has numerous advantages over the devices known from the prior art.
  • the door is held securely in its closed position by the force of the force accumulator as soon as the locking element has been moved to its locking position.
  • the energy storage which is preferably designed as a mechanical energy storage, thus ensuring a reliable locking of the door even with a momentary failure of the power supply.
  • a manual opening of the door can still be made possible. Namely, the door moves under effort of a corresponding counterforce in the direction of its open position, the locking element can be moved with the same configuration against the closing force of the energy storage in its open position, in which it is the corresponding holding element on the body or on the door, for example is formed as a recess releases. The door can finally be fully opened.
  • an opening signal can then be transmitted to a door control, which then controls the drive unit such that the locking element moves from the locking position against the closing force in the open position and thus brings the locking element out of engagement with the corresponding holding element.
  • a door control which then controls the drive unit such that the locking element moves from the locking position against the closing force in the open position and thus brings the locking element out of engagement with the corresponding holding element.
  • an opening signal can then also be transmitted to the door control by the program sequence control. In this way, a program-controlled opening of the locking arrangement is possible, for. B. at the end of a drying phase in which a washed in a dishwasher ware is dried.
  • the actual, at least gap-wise, opening of the door can be achieved by means of an opening device, for example in the form of spring elements and / or with the help of further actuators, such as e.g. an impact element in the form of a plunger, which acts on the door can be realized.
  • the other actuators can advantageously be driven by the drive unit of the locking arrangement.
  • the energy storage is at least one spring, in particular at least one substantially longitudinally extending coil spring.
  • the spring may in this case be designed as a tension spring, which acts on the locking element with a force that pulls it into its locking position.
  • compression springs can be used, which can be supported on corresponding support surfaces of the locking element and the support member or frame member and press the locking element in the locking position.
  • the locking arrangement comprises a support member or frame member by means of which the locking arrangement is attachable to the door or on the body, and the locking element is movable relative to the support member between the open position and the locking position.
  • the carrier element or frame element has a stop surface against which the locking element can be supported in the open position to prevent unwanted return movement into the locking position
  • the Locking element is associated with a release element, with the aid of which the locking element can be brought into contact with the contact surface of the release element and out of engagement with the stop surface of the power storage in the locking position.
  • the locking element is moved by the drive unit starting from its locking position until it finally reaches the area of the abutment surface and is held by the drive unit - biased by the force accumulator.
  • the door can be opened and z. B. be loaded with items. If the door is closed again, it comes from a certain position with the release element in contact.
  • the locking arrangement comprises an intermediate member which is in operative connection with both the drive unit and the locking element, and with the aid of a force from the drive unit to the locking element is transferable, the one Movement of the locking element causes from the locking position to the open position.
  • the intermediate member may in this case z. B. may be formed as a plunger, which can be moved linearly by the drive unit against the locking element to move this in the open position.
  • racks or wheels can be used, which take over the function of one or more intermediate links and ultimately ensure a power transmission from the drive unit to the locking element.
  • gear can be used to transfer the power either as quickly and / or as evenly as possible to the locking element.
  • the locking element has a front area which can be brought into engagement with the retaining element of the door and a rear area opposite the front area, wherein the locking element and the intermediate element are arranged relative to one another in such a way that the drive unit generated force is transferable to the rear area.
  • the front portion may have a shape that allows engagement with the retaining element.
  • the locking element can open into a nose portion which can engage in a corresponding recess of the door.
  • the rear region preferably has a contact surface on which the intermediate member or directly the drive unit can act.
  • the front portion is expediently adapted to be accessible from outside so that it can come into contact with the retaining element of the door
  • the rear portion can be concealed between a wall of the body and a corresponding panel or worktop, so that this area and if necessary also the drive unit is protected against damage.
  • the intermediate member is designed as a rocker arm which is rotatably mounted about an axis of rotation, wherein the rocker arm has a first leg, which is in operative connection with the drive unit or can be brought, and wherein the rocker arm a second leg, which is in contact with or can be brought into contact with a contact surface of the locking element, wherein the rocker arm is set into a rotational movement by means of the drive unit, during which the rocker arm transmits a force to the contact surface, the movement of the locking element in the open position causes.
  • a particular advantage of using a corresponding rocker arm lies in the fact that it can be constructed extremely robust and thus has a high load capacity.
  • the rocker arm at least in a partial area, in particular in the region of the first leg, can also be made so elastically deformable that it yields or deflects from a predefinable force, with the result that none or at least none for disengaging the locking element with the Retaining element of the door sufficient force is transmitted to the locking element.
  • a force limitation is automatically realized, which serves as protection against overload for the locking arrangement.
  • An overload which without force limitation could also lead to damage of components of the locking arrangement, further components involved in the automatic opening process of the door or the door itself, can occur, for example, if a high counterforce, e.g. by a user or an obstacle on the door is exercised.
  • Such an elastic rocker arm is also advantageous in connection with a so-called child safety, which prevents unintentional opening of the door, especially by children.
  • a parental control could e.g. be realized in such a way that the locking element is blocked with activated child safety lock by means of a blocking element.
  • the counterforce exerted by the blocking element would also lead to the rocker arm yielding or evading due to its elastic properties.
  • a child safety device could also be realized by the drive unit being deactivated when the child safety device is activated.
  • the power supply to an electric drive unit e.g. with the help of a microswitch, be interrupted.
  • the drive unit has a rotatable cam or an eccentric or the like, which is in contact or can be brought into contact with the first limb, with the aid of the cam or eccentric a force of the drive unit being transferable to the first limb, which causes a rotation of the rocker arm.
  • a rotational movement of the drive unit which may be formed, for example, as an electric motor, be converted in a simple manner in a tilting movement of the rocker arm. It may also be sufficient if the drive unit is always driven in one direction only, while the cam allows a rocking and tilting of the rocker arm. A reversal of direction of the drive unit is therefore not necessary.
  • the drive unit comprises a dacaselelement, e.g. in the form of a rotary arm, a turntable or the like, on.
  • a driver is arranged, in which the first leg of the rocker arm is guided.
  • a rotation of the rocker arm can be effected by a rotational movement of the connecting element.
  • the intermediate member is in contact with a return element, in particular in the form of a spiral or torsion spring, which acts on the rocker arm with a force component which acts counter to the transferable force from the drive unit to the intermediate member.
  • a return element in particular in the form of a spiral or torsion spring, which acts on the rocker arm with a force component which acts counter to the transferable force from the drive unit to the intermediate member.
  • the intermediate member only has to be moved by the drive unit from a starting position to the extent that it causes the locking element to move from the locking position into the open position.
  • the intermediate member is subsequently returned to the starting position by the return element without any further action by the drive unit.
  • the drive unit must not be positively or non-positively connected in this case with the intermediate member in order to bring this back to the starting position can.
  • the drive unit for example by means of a cam, only causes a movement of the intermediate member in a direction which moves the locking element in its open position, while the return movement of the intermediate member, by the finally a return movement of the Locking element when closing the door in its locking position is possible, done by the return element.
  • the actual opening of the door at least in the manner of a gap can be effected by means of an opening device, e.g. in the form of spring elements, which can be arranged, for example, in the region of a door hinge.
  • an opening device e.g. in the form of spring elements
  • at least one impact element e.g. in the form of a plunger
  • the or the impact elements are also driven by the drive unit of the locking arrangement.
  • the drive unit can be directly or via an intermediate member, e.g. the described rocker arm, act on the impact element.
  • the locking element for example relative to the support member or frame member, is mounted such that it is movable during movement between the open position and the locking position along a longitudinal axis and is additionally rotatable about a rotation axis, the extending perpendicular to the longitudinal axis.
  • the longitudinal axis extends in particular in the depth direction of the body of the household appliance, and is additionally rotatable about an axis of rotation which is perpendicular to the longitudinal axis, in particular in a plane defined by the width and depth direction of the body of the household appliance position plane and substantially parallel to the width direction of the body of the household appliance extends.
  • the locking element can thereby cause a simple way of engagement with the holding element and additionally pulling the door to the body.
  • the locking can take place as follows: First, an approaching of the door, for example by means of the release element already described, causes a movement of the locking element about its axis of rotation, during which it is moved away from a corresponding support surface.
  • the rotational movement causes the locking element, for. B. by means of a nose arranged in the front area, engages in engagement with the locking element corresponding to the holding element.
  • the energy storage causes a movement of the locking element in its locking position during which it also pulls the door to the body.
  • the intermediate member has an engagement surface and the locking element a contact surface which are at least partially in contact or can be brought, wherein the engagement surface and the contact surface are inclined to each other such that from the intermediate member to a force component the locking element is transferable, which additionally causes a rotational movement of the locking element about its axis of rotation during the movement of the locking element from the locking position to the open position along the longitudinal axis.
  • the locking element no longer needs to be active in this case, e.g. be guided by appropriate guides of the support member or frame member, in its final locking position or in the region of a corresponding support surface.
  • either the engagement surface of the intermediate member, the contact surface or both surfaces with respect to the longitudinal axis of the locking element may be inclined to allow a corresponding force entry having a force component which is not parallel to, in particular axial, longitudinal movement direction of the locking element.
  • the drive unit and / or the intermediate member have means by means of which they can be fastened to the body of a dishwasher, independently of the attachment of the carrier element or frame element.
  • the drive unit and / or the intermediate member can be serviced, replaced or retrofitted independently of the carrier element or frame element and the locking element guided therein.
  • a force storage in particular a spring element, for example in the form of a Helical compression spring, is present.
  • a drive unit is able to apply the required force within a short time even with limited space.
  • a controllable locking device may be provided, which holds the force accumulator in the locked position of the locking element in a prestressed state and releases it to move the locking element in the open position.
  • a further embodiment of the invention provides that the drive unit is an electromagnet which has a coil and an armature.
  • the drive unit has the particular advantage that the drive unit can be used simultaneously for detecting an opening request for the door.
  • an opening request can be detected as a function of a displacement of the armature relative to the coil.
  • an opening request could also be detected by means of a Hall sensor, which senses the displacement of the armature.
  • the household appliance according to the invention e.g. in the form of a dishwasher, finally characterized by the fact that it comprises a locking arrangement, which is formed according to one or more of the described aspects, wherein the locking arrangement always has the said power storage and the drive unit, so preferably also a manual locking and unlocking the locking arrangement is possible in addition to the possibility of automatic unlocking.
  • the locking element and the drive unit are arranged side by side in a front view and / or top view of the household appliance.
  • the door or the body has a holding element, in particular in the form of a depression, with which the locking element engages in the locking position.
  • the holding element As a rule, it must not have any (actively) movable elements so that a space-saving installation is possible.
  • the retaining element can be used as a separate insert piece in the frame of the door or in the body, or be formed integrally with the frame of the door or with the body, for example in the form of an indentation or groove or trough, in which finally the locking element can engage.
  • the household appliance comprises a program sequence control, which is connected via a door control with the drive unit and which is formed, depending on the program flow and / or one or more operating parameters of the household appliance, in the case of a dishwasher in particular after the specification of a wash program, preferably after completion of a drying phase, in which dish ware arranged inside the dishwasher is dried, to transmit an opening signal to the door control.
  • a program sequence control which is connected via a door control with the drive unit and which is formed, depending on the program flow and / or one or more operating parameters of the household appliance, in the case of a dishwasher in particular after the specification of a wash program, preferably after completion of a drying phase, in which dish ware arranged inside the dishwasher is dried, to transmit an opening signal to the door control.
  • Upon receipt of an opening signal controls the door control the drive unit such that the locking element moves from the locking position to the open position and thus the door is unlocked.
  • the unlocking can thus be targeted and at the same time corresponding states of the household appliance, for example,
  • an opening signal which causes the door control to unlock the door can also be generated with the aid of a sensor which detects an opening request of a user of the household appliance.
  • a sensor which detects an opening request of a user of the household appliance.
  • basically any type of sensing can be used, which is suitable for detecting a corresponding opening request.
  • a locking arrangement which makes it possible to lock the door of a dishwashing machine with the aid of an energy store, wherein the unlocking takes place, preferably automatically, by means of a drive unit.
  • the locking arrangement can further be ensured that the door unlocked even in the event of a possible defect of the drive unit and thus the household appliance can continue to operate.
  • FIG. 1 shows a side view of a household appliance according to the invention using the example of a dishwasher GS.
  • This has an interior space for receiving to be cleaned items to be washed body 18 which is closable in the direction of a front side by means of a door 19.
  • the door 19 is in FIG. 1 by means of a solid Lines shown in their closed position, in which they closes the interior.
  • the open position of the door 19 is indicated by dashed lines, in which the dishwasher GS can be loaded with items to be washed.
  • the dishwasher GS has a locking arrangement according to the invention in a locking region 24 which can be arranged, for example, in the upper region of the front side, as exemplified below is described.
  • FIGS. 2 to 5 show a possible structure of the same.
  • the show Figures 2 (Side view) and 4 (top view) a support element or frame element 1, in which the actual locking element 2 is guided.
  • this frame member 1 which may be made of a plastic, for example, the entire assembly, as shown in the mentioned figures, on the body 18, in particular between a ceiling area bounding the interior and attached to the outside of the body 18 Ceiling panel of the dishwasher GS, are fixed, so that as a result, a movement of the locking element 2 relative to the body 18 of the dishwasher GS is possible.
  • the locking arrangement comprises a force accumulator 5, which acts on the locking element 2 with a closing force, with the aid of which it from the open position OS (shown in the Figures 2 and 4 ) in a locking position VS (see Figures 3 and 5 ) is movable.
  • the open position OS is defined as the position in which an approach of the door 19 in the front region 9 of the locking arrangement is possible, the locking element 2 thus not yet with a corresponding holding element 3 (see, for. FIG. 11 , which shows a corresponding retaining element 3 in the form of a recess projecting into the door 19,) of the door 19 is engaged.
  • the locking position VS is defined as the position in which the locking element 2, for example via the nose 23 shown in the figures, with the Holding member 3 is engaged and thereby locks the door 19 relative to the body 18.
  • the locking element 2 is in the open position, wherein it is preferably in contact with a stop surface 6, which prevents premature movement into the locking position. If now the door 19 is closed by an operator, then it is necessary for the locking element 2 to come out of engagement with the stop surface 6.
  • the locking element 2 preferably has a release element 7, which in the FIGS. 2 to 5 is exemplified as a laterally projecting bolt.
  • the door 19 should expediently have a corresponding, for example, wedge-shaped counter element which, upon contact with the release element 7, causes the front region 9 of the locking element 2 to move downward, so that it can slide over the stop surface 6.
  • a release element 7 As a release element 7, of course, another construction can be used, which causes the said movement of the locking element 2. It is conceivable, for example, a rotary latch, which undergoes a rotation upon contact with the door 19, wherein this rotation finally results in a movement of the locking element 2, so that it is moved away from the stop surface 6.
  • the energy accumulator 5 may be formed, for example, as shown here as a spiral spring, which is supported on the one hand in the region of a rear portion 10 of the locking element 2 and the other on a support surface 21 of the frame member 1, as shown in the FIGS. 2 to 14 is shown. As a result, a force is exerted on the locking element 2, which pulls it in the direction of the rear area 10.
  • the door 19 is also drawn to the body 18 and a arranged between the body 18 and door 19 seal, so that leakage of rinsing liquid and / or steam can be excluded.
  • the frame element 1 can, as shown, have an additional limiting element 22 to which the Front region 9 of the locking element 2 rests in the locking position.
  • the door 19 could be unlocked without such an element.
  • a tightening on the door 19 in its closed position would cause the nose 23 and thus also the locking element 2 is pulled against the force of the force accumulator 5 in the direction of its front portion 9.
  • the frame member 1 can be equipped with corresponding guide surfaces which cooperate with corresponding mating surfaces of the locking element 2.
  • the nose 23 or the holding member 3 have a corresponding shape, which causes said upward movement in contact with the door.
  • the locking arrangement additionally has a drive unit 4 with the aid of which the locking element 2 can be moved from the locking position VS against the closing force of the force accumulator 5 into the open position OS.
  • drive unit 4 is for this purpose any drive in question, which allows a corresponding movement of the locking element 2 from the locking position VS in the open position OS.
  • Conceivable for example, linear drives, electric drives, bimetals or similar responsive to temperature fluctuations components, etc.
  • FIGS. 6 and 7 indicated a solution that allows movement of the locking element 2 by means of a linear drive.
  • the drive unit 4, not shown, has for this purpose an intermediate member 8, via which the correspondingly generated force can be transmitted to the rear region 10 of the locking element 2.
  • the intermediate member 8 may be formed, for example, as a plunger, of a in FIG. 6 shown position in the in FIG. 7 shown position is movable and in this case causes a movement of the locking element 2 in its open position.
  • FIGS. 8 to 11 Another way to realize the basic idea of the present invention is in the FIGS. 8 to 11 shown.
  • the drive unit 4 is formed by an electric motor, which is preferably connected to the body 18 of the dishwasher GS independently of the carrier element or frame element 1, so that a corresponding retrofitting is possible at any time.
  • the drive unit 4 is further connected to a cam 15.
  • the operative connection between drive unit 4 and locking element 2 is in turn realized by means of an intermediate member 8, which is formed in the example shown as a rocker arm, which in turn is rotatably supported via a rotation axis 11.
  • the axis of rotation 11 is preferably perpendicular in the plane defined by the width direction and depth direction of the body 18, so that the rocker arm sweeps over a pivoting range in this positional plane.
  • the cam 15 exerts a force on the first leg 12 of the rocker arm from a certain position, resulting in a rotation of the rocker arm about its axis of rotation 11 of the in FIG. 10 position shown in the position as shown in FIG. 11 is shown.
  • a corresponding engagement surface 17 of the second leg 13 of the rocker arm with a contact surface 14 in the rear region 10 of the locking element 2 in contact and thus causes a power transmission of the drive unit 4 via the intermediate member 8 on the locking element 2, which as a result undergoes a movement in the direction of the open position.
  • the engagement surface 17 of the intermediate member 8 and the contact surface 14 of the locking element 2 are inclined to each other such that from the intermediate member 8, a force component is transferable to the locking element 2, during the axial movement of the locking element 2 along a Longitudinal axis of the open position in the locking position additionally causes a rotational movement of the locking element 2 about a rotational axis DA, which is perpendicular to the axial or longitudinal longitudinal direction of movement of the locking element.
  • the locking arrangement is arranged, for example, in the ceiling region of the body, preferably in the front middle region of the top wall of the body, the longitudinal axis extends in particular in the depth direction of the body of the dishwasher.
  • the locking element is thus preferably mounted in this mounting case relative to the carrier element such that it is movable during the movement between the open position and the locking position along a longitudinal axis such as LA, which extends in particular in the depth direction of the body of the dishwasher, and in addition to an axis of rotation such as DA is rotatable, which extends perpendicular to the longitudinal axis LA, in particular in a plane defined by the width and depth direction of the body of the dishwasher layer and substantially parallel to the width direction of the body of the dishwasher extends.
  • the axis of rotation DA in each case runs perpendicular to the plane of the drawing.
  • This rotational movement and, consequently, an upward movement of the front region 9 of the locking element 2 from a locking position to an open position can be realized, for example, by the engagement surface 17 of the intermediate element, in particular rocker arm, as shown in FIGS FIGS. 8 and 9 seen, bevelled.
  • This will be in contact with the vertically extending contact surfaces 14 of the locking element 2 transmit a force component to the locking element, which causes said rotational movement of the locking element 2.
  • this will rotate due to the said force component to an imaginary axis of rotation DA positioned in the rear region 10 and thus the in the Figures 9 and 11 shown position.
  • both surfaces can be provided accordingly with an inclination.
  • FIG. 11 This shows next to the locking arrangement 25 according to the invention also a possible positioning of the same.
  • the frame element 1 on the upper side of the already mentioned body 18 of a dishwasher GS, wherein this can have an opening 20 in its region facing the door 19 through which a part of the locking element 2, for. B. the nose 23, at least in the locking position can protrude to engage with a corresponding holding element 3, for example, arranged in the door 19 recess in engagement.
  • the door 19 in FIG. 11 still a gap is opened. To activate the closing mechanism, it would therefore have to be moved further in the direction of the body 18 until the holding element 3 is located under the nose 23 of the locking element 2.
  • the intermediate member 8 with a return element 16 are in operative connection, which always ensures that the engagement surface 17 of the intermediate member 8 is in contact with the locking element 2 only when the drive unit 4 a Force on the intermediate member 8 transmits. If this is not the case, the intermediate member 8 is moved back to its starting position, as exemplified in FIG. 10 is shown.
  • the use of a cam for actuating the intermediate member has, in particular, the advantage of a shorter unlocking time relative to an eccentric, i. already after a 90 ° rotation of the cam, the intermediate member can be actuated and the locking element can be brought into its open position. After a further 90 ° rotation of the cam, the intermediate member is already released again, i. no longer in contact with the rear area of the locking element, so that it can be brought into its locking position, if necessary, e.g. the user wants to close the door. An uncomfortable, too long waiting time between the time of unlocking the door and the time from which a door lock is possible again, is thus avoided.
  • the eccentric requires in comparison to the cam of the drive unit from a lower torque due to its flatter attack surface slope when contacting the intermediate member. Also, the envelope of the rotational movement of the eccentric is more space-saving than that of the cam.
  • FIGS. 12 and 13 show a further embodiment of the invention, in which the drive unit 4 is also formed by an electric motor, which is preferably connected independently of the support member or frame member 1 with the body 18 of the dishwasher GS.
  • a connecting element in the form of a rotary arm 45 is rotatably connected to a rotatable shaft 46 of the electric motor.
  • a driver 47 rotatably mounted on the shaft 46.
  • the axis of rotation of the driver 47 is preferably perpendicular to the plane defined by the width direction and depth direction of the body 18 level.
  • the connecting element can also be designed otherwise, for example as a turntable.
  • the operative connection between drive unit 4 and locking element 2 is in turn realized by means of an intermediate member 8, which in the example shown is in turn designed as a rocker arm, which is rotatably mounted via a rotation axis 11.
  • the axis of rotation 11 of the rocker arm is preferably perpendicular to that of the Width direction and depth direction of the body 18 spanned plane, so that the rocker arm sweeps over a pivoting range in this positional plane.
  • the first leg 12 of the rocker arm is guided in the driver 47, that is, movably mounted in the driver 47 in the longitudinal direction of the first leg 12.
  • the rotary arm 45 executes a rotational movement which, due to the bearing of the first leg 12 of the rocker arm in the driver 47, results in a rotation of the rocker arm about the axis of rotation 11.
  • the rocker arm of the in FIG. 12 position shown in a position as shown in FIG. 13 is shown turned.
  • a corresponding engagement surface 17 of the second leg 13 of the rocker arm with the contact surface 14 in the rear portion 10 of the locking member 2 in contact and thus causes a power transmission from the drive unit 4 via the intermediate member 8 on the locking element 2, as a result, a movement in the direction the open position learns.
  • FIG. 11 Analogous to FIG. 11 also shows FIG. 13 in addition to the locking arrangement 25 according to the invention a possible positioning thereof. Again, to avoid repetition to the corresponding statements FIG. 11 directed.
  • the embodiment is characterized according to the Figures 12 and 13 by a particularly space-saving arrangement, which in particular results from the fact that the circle spanned by the movement of the rotary arm 45 is fully utilized.
  • the drive unit 4 is a force storage 26.
  • This can be designed in principle arbitrary, but is preferably designed as a spring element, for example as a helical compression spring 27.
  • a Bowden cable 28 controllable locking device 29 of the energy storage in the in the Figures 12 and 13 shown locking position of the locking element 2 held in a prestressed, energy-storing state. If required, so if the door of the dishwasher GS is to be opened automatically, the locking device 29 releases the energy storage device 26, so that it can move the locking element 2 in the open position OS.
  • the energy storage device 26 further comprises a guide rod 30, at whose end facing the locking element 2 arranged approximately as a pressure plate 31, serving to initiate the compressive force of the helical compression spring 27 in the locking element 2 organ.
  • the helical compression spring 27 is supported at one end to the pressure plate 31 and at its other end to a transverse to the direction of movement of the locking element 2 extending support wall 32, wherein it engages around the guide rod 30.
  • the guide rod 30 passes axially through an opening 33 in the support wall 32.
  • the guide rod 30 carries a radially beyond its peripheral surface standing out, for example, designed as a flange stop element 34.
  • This element is part of the locking device 29, which further comprises a cooperating with the stop element 34 blocking element 35.
  • the blocking element 35 is movable on a direction transverse to the movement path of the guide rod 30 extending direction, which is indicated by the double arrow 36.
  • the blocking element 35 In the Locking position VS of the locking element 2, the blocking element 35 is disposed between the stop member 34 and the support wall 32, wherein it is clamped due to the located in a compressed state, so biased, helical compression spring 27 between the stopper member 34 and support wall 32.
  • the locking device 29 is, as I said, controllable, and when the appliance door is to be opened, moved to the release position in which it is outside of the movement path described by the stop element 34.
  • the blocking element 35 by means of the Bowden cable 28, the inner cable 37 is connected to the blocking element 35, in the direction of the arrow 39 of the guide rod 30 against the action of the inner cable 37 encompassing helical compression spring 40 moves away. Due to the action of the relaxing helical compression spring 27 then the locking element 2 is moved to its open position OS. At the end of this movement, the stop element 34 abuts against the support wall 32.
  • the measured in the axial direction of the guide rod 30 length of the blocking element 35 substantially corresponds to the distance which the locking element 2 travels viewed in the axial direction of the guide rod 30 when it moves from its locking position VS in its open position OS.
  • the helical compression spring 27 can be tensioned again with the aid of an actuator 41, which is indicated only schematically.
  • the drive unit 4 is designed as an electromagnet 42, which comprises a coil 43 and a coil 43 at least partially surrounded and movable in the axial direction of the coil 43 core or armature 44 made of ferromagnetic material.
  • electromagnet 42 which comprises a coil 43 and a coil 43 at least partially surrounded and movable in the axial direction of the coil 43 core or armature 44 made of ferromagnetic material.
  • the armature 44 can be driven by a reverse current flow through the coil 43 back to its original position.
  • the embodiment according to FIG. 14 has the particular advantage that the drive unit 4 embodied as an electromagnet 42 can at the same time be used as a sensor for detecting an opening request for the door 19. So, for example, by a light Pressing the door 19 in the door seal causes a movement of the spring-biased locking element 2 in the direction of the armature 44 to. This also causes a movement of the armature 44, which induces a voltage in the coil 43, which can be detected and used as a trigger signal for an automatic door opening.
  • FIG. 17 finally shows a schematic block diagram of a household appliance according to the invention using the example of the dishwasher GS.
  • This includes a door control TS, which upon receipt of an opening signal drives the drive unit 4 of the locking arrangement 25 such that the locking element 2 moves from the locking position VS against the closing force into the open position OS.
  • An opening signal can on the one hand be transmitted to the door control by a program sequence control PS which controls the program sequences of the dishwasher.
  • the program sequence control PS and the door control TS can be realized in a common control unit or separately from each other.
  • the opening signal can be generated and transmitted by the program sequence control PS as a function of the program sequence and / or of one or more operating parameters of the dishwasher. In this way, a program-controlled opening of the door 19 is made possible.
  • the drive unit 4 can be activated by the door control TS, for example, following the specification of a wash program, preferably after completion of a drying phase in which items to be washed are arranged inside the dishwasher.
  • an opening signal can also be generated and transmitted by a sensor system S, which is designed to detect an opening request of a user of the dishwasher.
  • the sensor can be e.g. Touch sensors and / or proximity sensors and / or knock sensors (structure-borne sound sensors) and / or magnets and / or other optical and / or acoustic sensors and / or inductive and / or capacitive sensors.
  • the door 19 is opened by means of an opening device OV at least one gap, so that they are then fully opened by the user in case of need can.
  • the opening device OV can be realized in a variety of ways, for example with the aid of spring elements or other actuators, such as a plunger for regurgitation of the door 19.
  • the invention has been explained by way of example for a dishwasher but is basically also applicable to other household appliances with locking arrangements for locking a door of the household appliance.
  • the locking arrangement is respectively attached to the body 18 of the domestic appliance and cooperates with a arranged on the door 19 corresponding holding element 3.
  • the locking arrangement can also be fastened to the door 19 and accordingly cooperate with a holding element 3, which is arranged on the body 18.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Washing And Drying Of Tableware (AREA)
EP12155701.1A 2011-03-09 2012-02-16 Agencement de verrouillage d'une porte d'un appareil ménager ainsi qu'appareil ménager Active EP2497854B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12155701T PL2497854T3 (pl) 2011-03-09 2012-02-16 Układ blokujący do blokowania drzwi urządzenia gospodarstwa domowego oraz urządzenie gospodarstwa domowego

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DE102011005318 2011-03-09
DE102011007538A DE102011007538A1 (de) 2011-03-09 2011-04-15 Verriegelungsanordnung zum Verriegeln einer Tür eines Haushaltsgeräts sowie Haushaltsgerät

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EP2497854B1 EP2497854B1 (fr) 2019-01-09

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013010819A1 (fr) * 2011-07-21 2013-01-24 BSH Bosch und Siemens Hausgeräte GmbH Lave-vaisselle et procédé d'ouverture d'une porte de lave-vaisselle
EP2742844A1 (fr) * 2012-12-14 2014-06-18 BSH Bosch und Siemens Hausgeräte GmbH Appareil ménager
WO2014184018A1 (fr) * 2013-05-16 2014-11-20 Vestel Beyaz Esya Sanayi Ve Ticaret A.S. Système d'ouverture de porte
US10907397B1 (en) * 2019-09-13 2021-02-02 Whirlpool Corporation Door opening assembly for appliance

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012211254A1 (de) 2012-06-29 2014-01-02 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät mit einer Verriegelungsanordnung und einem Türgewichtsausgleichssystem
DE102014209359A1 (de) * 2014-05-16 2015-11-19 Lufthansa Technik Ag Geschirrspülvorrichtung für ein Luftfahrzeug
DE102020124876A1 (de) 2020-09-24 2022-03-24 Miele & Cie. Kg Kopplungseinrichtung zum Koppeln von Reinigungsgut für ein Reinigungsgerät, Verfahren zum Betreiben einer Kopplungseinrichtung und Reinigungsgerät

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DE19960814A1 (de) * 1999-12-16 2001-06-28 Bsh Bosch Siemens Hausgeraete Betätigungsvorrichtung für einen Türverschluß
US20020180319A1 (en) * 2001-05-31 2002-12-05 Irwin Eric C. Automatic dishwasher and push/pull latch mechanism for same
WO2008096222A2 (fr) * 2007-02-05 2008-08-14 Itw Metalflex, Druzba Za Proizvodnjo Delov Za Gospodinjske Aparate, D.O.O. Dispositif de blocage pour la porte d'un appareil électroménager électrique, en particulier la porte d'une machine à laver
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JP2008538397A (ja) * 2005-04-19 2008-10-23 ベーエスハー ボッシュ ウント ジーメンス ハウスゲレーテ ゲゼルシャフト ミット ベシュレンクテル ハフツング 家庭用機器のための閉鎖部材

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DE4426611A1 (de) * 1994-07-27 1996-02-01 Bosch Siemens Hausgeraete Betätigungsvorrichtung für einen Türverschluß
DE19960814A1 (de) * 1999-12-16 2001-06-28 Bsh Bosch Siemens Hausgeraete Betätigungsvorrichtung für einen Türverschluß
US20020180319A1 (en) * 2001-05-31 2002-12-05 Irwin Eric C. Automatic dishwasher and push/pull latch mechanism for same
WO2008096222A2 (fr) * 2007-02-05 2008-08-14 Itw Metalflex, Druzba Za Proizvodnjo Delov Za Gospodinjske Aparate, D.O.O. Dispositif de blocage pour la porte d'un appareil électroménager électrique, en particulier la porte d'une machine à laver
DE102008030902A1 (de) * 2008-06-30 2009-12-31 BSH Bosch und Siemens Hausgeräte GmbH Türverschließvorrichtung für ein Hausgerät, Türanordnung mit einer Türverschließvorrichtung und Verfahren zum Verschließen einer Tür eines Hausgeräts

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013010819A1 (fr) * 2011-07-21 2013-01-24 BSH Bosch und Siemens Hausgeräte GmbH Lave-vaisselle et procédé d'ouverture d'une porte de lave-vaisselle
EP2742844A1 (fr) * 2012-12-14 2014-06-18 BSH Bosch und Siemens Hausgeräte GmbH Appareil ménager
WO2014184018A1 (fr) * 2013-05-16 2014-11-20 Vestel Beyaz Esya Sanayi Ve Ticaret A.S. Système d'ouverture de porte
US10907397B1 (en) * 2019-09-13 2021-02-02 Whirlpool Corporation Door opening assembly for appliance
US11332970B2 (en) 2019-09-13 2022-05-17 Whirlpool Corporation Door opening assembly for appliance

Also Published As

Publication number Publication date
DE102011007538A1 (de) 2012-09-13
EP2497854B1 (fr) 2019-01-09
PL2497854T3 (pl) 2019-07-31

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