EP2280632B1 - Geschirrspülmaschine mit einer vorrichtung zum spaltweisen öffnen der tür - Google Patents

Geschirrspülmaschine mit einer vorrichtung zum spaltweisen öffnen der tür Download PDF

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Publication number
EP2280632B1
EP2280632B1 EP09757257A EP09757257A EP2280632B1 EP 2280632 B1 EP2280632 B1 EP 2280632B1 EP 09757257 A EP09757257 A EP 09757257A EP 09757257 A EP09757257 A EP 09757257A EP 2280632 B1 EP2280632 B1 EP 2280632B1
Authority
EP
European Patent Office
Prior art keywords
door
dishwasher
push rod
recited
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP09757257A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2280632A1 (de
Inventor
Walter Assmann
Dirk Wegener
Stefan Tiekötter
Volker Marks
Cornelius Wolf
Markus Drücker
Benjamin Held
David Buhl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Priority to PL09757257T priority Critical patent/PL2280632T3/pl
Publication of EP2280632A1 publication Critical patent/EP2280632A1/de
Application granted granted Critical
Publication of EP2280632B1 publication Critical patent/EP2280632B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • A47L15/4261—Connections of the door to the casing, e.g. door hinges
    • 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
    • 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
    • A47L15/48—Drying arrangements
    • A47L15/488—Connections of the tub with the ambient air, e.g. air intake or venting arrangements
    • 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
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A47L15/0034—Drying phases, including dripping-off phases
    • 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
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/20—Time, e.g. elapsed operating time
    • 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
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/22—Loading doors, e.g. door latches, inflatable door seals
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefore
    • E05Y2201/404—Motors; Magnets; Springs; Weights; Accessories therefore characterised by the function
    • E05Y2201/422—Motors; Magnets; Springs; Weights; Accessories therefore characterised by the function for opening
    • E05Y2201/424—Motors; Magnets; Springs; Weights; Accessories therefore characterised by the function for opening for the final opening movement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/304—Application of doors, windows, wings or fittings thereof for domestic appliances for dishwashers

Definitions

  • the invention relates to a dishwasher with a washing container, which can be closed by a hinged door, wherein for locking a door arranged on the locking device engages in a arranged on the Spül actuallyer closing block, and wherein the gap-wise opening of the door of the lock on a means of a drive in the opening direction adjustable push rod is arranged.
  • a push rod is known, which is eccentrically mounted on an engine and thus the rinse tank door can automatically open a gap after a cleaning and rinsing cycle, so that the remaining moisture escapes due to natural convection.
  • the opening mechanism described there for the drying process is an improvement, nevertheless, there are problems that are seen in the fact that the opening device described therein only allows an opening gap of ten millimeters. A larger opening path is required especially when the dishwasher is installed in a kitchenette and is covered at the top by a worktop.
  • a dishwasher in which also after the completion of the rinsing and drying process, the door is opened in columns by way of a motor-driven locking cam.
  • the locking pin remains after the end of the program in this slightly open position. The user should thereby facilitate the closing after unloading the device, because then the push rod is pulled by the motor in the end position.
  • a disadvantage of this solution is that during the support of the drying process, the opening gap must be large (see above) and therefore the locking block even after opening by the operator far into the room protrudes in this position, the block creates a risk of injury and also easy to be damaged.
  • a dishwasher in which the locking bolt can be moved by an electric motor in three different positions.
  • the locking block In the first position, the locking block is in its initial position, in which the door is completely closed to carry out the flushing operation.
  • the locking pin is moved to the end of the program in a second position, in which the door to a relatively large gap is opened. This serves to support drying.
  • the locking cam After opening the door, the locking cam is moved back to a third position.
  • the locking block projects now only so far out of the housing that the door is only opened by a small gap when closing. In this position, the risk of injury is reduced.
  • an automatic retraction of the locking pin in the first position supports the user when closing the door, because he no longer has to press against the force of the door seal.
  • the above-described dishwashers use an electric geared motor as a drive. This is an expensive and wear-prone component. In addition, two position switches are used.
  • the invention has the problem to disclose a dishwasher of the type mentioned, in which even when replacing the electric gear motor by a cheaper drive an automatic retraction of the lock is guaranteed.
  • the means comprise a cable or Bowden cable coupled to the door. This results in a simple mechanical coupling, by which the force applied by the user at the opening on the door force can be used to move back the Sch Strukturklobens.
  • the door actuates the cable or Bowden cable via a rotatably mounted reversing lever.
  • An essential feature of this device is that the retraction mechanism is not permanently coupled to the door. This minimizes wear because the push rod is retracted only once per program cycle. In addition, the disadvantage is removed, which results from the unfavorable direction of movement of the door in the hinge area with respect to the desired withdrawal direction.
  • the lever By the lever, the upward movement of the door hinge is directed downward and thus automatically reversed in a pulling movement. As a result, more pulleys can be omitted.
  • the reversing lever is formed with two arms, wherein the first Arm is movable through the door and wherein the second arm of the cable or Bowden cable is attached.
  • a simple mechanical construction is achieved when the lever is mounted on a support plate.
  • a support plate can be attached in a simple manner to the side wall of the washing container or a component fastened to the side wall, so that no further changes in the construction of the dishwasher are necessary.
  • An inexpensive and simply constructed drive for moving the push rod comprises at least one spring. This can be tensioned against the opening direction of the push rod upon further opening of the door. It is expedient if the push rod in at least one position in which the spring is tensioned, can be locked.
  • the push rod can be locked in the starting position and in a pre-locking position lying in front of the starting position.
  • the locking device has a small idle stroke, ensures that the latch can engage in the lock.
  • the push rod when opening the door by a predetermined minimum angle from the pre-locking position can be converted to the starting position.
  • thermoactor can be used to release the push rod lock. It is advantageous if the push rod remains after releasing the lock until the cooling of the thermoactuator in an intermediate position. This ensures that the locking of the push rod is functional again as soon as the lock has left the intermediate position. The user can therefore close them immediately after the door has been opened automatically.
  • an electromagnet is used to release the push rod lock.
  • FIG. 1 shows purely schematically parts of a dishwasher 1, namely the washing compartment 2, the underlying base 3 and pivotally mounted in the lower part of the washing compartment 2 door 4.
  • the door 4 has in a known manner (see for example DE 10 2006 054 414 B3 ) in the drawings not shown in detail door lock, in which a locking pin 5 (see FIGS. 4b and 11 to 16 ) intervenes.
  • the closing cam 5 which is located between the Deckelbreich (not shown) and the washing compartment 2 of the dishwasher 1, about a 100 mm long, movable in the opening and closing direction push rod 6 expanded.
  • This push rod 6 is housed movable in a housing 7 and is closed with the door 4, see FIG. 2 , biased in the retracted state via two tension springs 8.
  • the locking of the push rod 6 at tensioned tension springs 8 takes a in the FIGS. 11 to 16 shown in more detail and described later locking device 9, in turn, from a control device, not shown, preferably the program control, via a trigger 15th (eg with thermo, bimetal or memory metal actuator, electromagnet) can be unlocked.
  • a trigger 15th eg with thermo, bimetal or memory metal actuator, electromagnet
  • the tension springs 8 move the push rod 6 by about 100 mm in the open position and thereby open the door 4 with the locking bolt 5 locked in the lock by a gap in this direction, see FIG. 1 and FIGS. 3a and b.
  • the preferably open at the end of the program around the gap door 4 allows a larger exchange of air in the washing compartment 2 and thus improves the drying and cooling of the dishes, not shown.
  • the locking pin 5 remains in the door lock until the user actuates a door opening mechanism and completely opens the door 4.
  • the tension springs 8 In order to enable a new automatic opening of the door 4 at the next wash program, the tension springs 8 must be tightened again.
  • the rear portion of the push rod 6 is connected via a cable system 10 with a boom 11 in the region of the door hinge 12. This boom is also in a known manner via another cable 13 with another tension spring 14 (FIG. FIGS. 2 to 4 ) coupled.
  • the spring 14 balances the weight of the door 4 to facilitate the user's opening.
  • the push rod 6 is retracted so far about the cable system 10 until the locking device 9 engages again. The system will then be ready for the next automatic opening operation at the end of the program.
  • the push rod 6 In the case of a manual opening of the door 4 during the program sequence, the push rod 6 remains in the locked position.
  • the system comes with a cheap drive and needs next to the cable 10 and the springs 8 only one position switch (not shown) for the position sensing "door closed". On a second position switch and an expensive geared motor can then be dispensed with.
  • FIGS. 5 to 10 show a further embodiment of a device by means of which the locking pin 5 is moved back against the opening direction at least approximately in its initial position upon further opening of the door.
  • a reversing lever 20 is used instead of the direct cable coupling.
  • the lever 20 is rotatably mounted on a support plate 22 via a bearing pin 21, see FIG. 5a , It is designed with two arms, the first arm 23 being movable through the door 4 as described later, and a Bowden cable 25 being fastened on the second arm 24.
  • the Bowden cable 33 is attached to a guide 26 of a boom 27 on the support plate 22.
  • the so guided Bowden cable 25 is connected in the upper part of the push rod 6, see FIGS. 1 to 4 ,
  • the holding plate 22 is on its rear side ( FIG. 5b ) are formed so that they on an angle plate 28 (see FIG. 7 ) can be snapped in the front area of the dishwasher 1, which serves as a support.
  • the retaining plate at two corners surrounding the angle plate 28 corresponding latching lugs 29 and 30.
  • the back contour of the support plate 22 is adapted to the contour of the angle plate 28, also a hole 31st , which is contained in the angle plate 28 due to production, used by a pin 32 as a further support element.
  • Umlenkhebel 20 and retaining plate 22 are designed in their geometry so that a door opening angle of about 45 ° sufficient to apply the necessary way of about 100mm for the retraction movement of the push rod 6. Both end positions of the reversing lever 20 are in line with the guide of the Bowden cable 25, so that the sheath 33 is neither bent during insertion nor the extract of the Bowden cable 25, which has a positive effect on the life. On the retaining plate 22 integrally formed stop elements 34 and 35 can serve as end stops for the lever 20, thereby the assembly of the assembly is simplified to the angle plate 28.
  • the contour 36 of the first arm 23, which comes into contact with the boom 11 of the door hinge 12, is designed for reasons of wear so that the boom 11 can slide there.
  • the Bowden cable 25 can be connected to the second arm 24 via a shaped piece, an eyelet or only via a Z-shaped wire end (not shown). Although almost no tolerance variations are expected due to the mechanical structure, it may be useful to provide an element with which tolerances can be compensated. This could e.g. by means of a clamping nut, not shown, which e.g. is arranged on the arm 27 of the holding plate 22, done. With the clamping nut then the Bowden cable 33 could be moved relative to the support plate 22, so that the desired retraction length is achieved at different positions of the reversing lever 20.
  • FIG. 7 shows the door 4 and the lever 20 in a dishwasher 1, whose program is currently running.
  • the push rod 6 is in the rear position, as in FIG. 2 shown, accordingly, the reversing lever 20 abuts against the lower end stop 35.
  • the door 4 is closed.
  • the boom 11 of the door hinge 12 is in the 9 o'clock position and is not in engagement with the lever 20.
  • the push rod 6 is moved by the tension springs 8 by about 100mm from the device, as in the FIGS. 3a and 3b shown. This movement is completed both by the door 4, as well as by the connected to the push rod 6 Bowden cable 25 and lever 20, see FIG. 8 ,
  • the lever 20 is now applied to the upper end stop 34 and the boom 11 of the door hinge 12 is in the 10 o'clock position in contact with the first arm 23 of the reversing lever 20th
  • Holding plate 22 and lever 20 can be inexpensively manufactured as plastic elements and be mounted without further structural changes of the dishwasher 1 at this.
  • the geometry of retaining plate 22 and lever 20 ensures a kink-free movement of the Bowden cable 25 and allows a path of the push rod 6 of about 100mm.
  • the need for an overstroke of a few millimeters to lock the push rod 6, results in a contact of the boom 11 with the lever 20. This allows an intermediate latching of the door 4 in an opening position of about 45 °, the operator filling the storage containers facilitated for metering in the door 4.
  • the actuator 15 has the task of releasing the locking of the push rod 6, so that it performs by the spring force a distance of about 100 mm.
  • a simple pawl the problem would arise that in slow actuators 15 a reset time, in the case of thermal actuators at least a few seconds pass. During this reset time, the pawl would not have returned to the locked position for the push rod 6 yet. This would result in the operator being unable to close the door 4 during the reset time because the push rod 6 can not be locked in the closed position.
  • this feature is very important.
  • the usual mode of operation is that the push rod 6 is brought via one of the above-described restoring devices through the opening of the door 4 in the starting position. There, both triangular noses 47 and 48 ( FIG. 13 ) in the projections 43 and 44 a.
  • FIG. 16 shown pre-locking position (third latching position) created, which is about 5 mm from the initial position and in which only the upper triangular nose 47 engages behind the lower projection 44.
  • the door sealing forces do not work yet.
  • the push rod 6 is pushed back so far that it does not disturb the user in the case of manual unlocking.
  • the final starting position ( FIG. 13 ) is reached when the user opens the door for clearing so far that the usual operation described above can proceed.
  • the described functions can be realized by different types of contours. It is preferred that the link 42 is arranged as a groove within the push rod 6. This is very advantageous for reasons of space. But it is also conceivable that corresponding contours are generated on the side edge of the push rod 6.
  • thermoactor instead of a thermoactor, it is also conceivable to use an electromagnet for moving the carriage 51.
EP09757257A 2008-06-02 2009-06-02 Geschirrspülmaschine mit einer vorrichtung zum spaltweisen öffnen der tür Active EP2280632B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09757257T PL2280632T3 (pl) 2008-06-02 2009-06-02 Zmywarka do naczyń z urządzeniem do szczelinowego otwierania drzwiczek

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102008026280 2008-06-02
DE102008026277 2008-06-02
DE102008026281 2008-06-02
PCT/EP2009/003912 WO2009146874A1 (de) 2008-06-02 2009-06-02 Geschirrspülmaschine mit einer vorrichtung zum spaltweisen öffnen der tür

Publications (2)

Publication Number Publication Date
EP2280632A1 EP2280632A1 (de) 2011-02-09
EP2280632B1 true EP2280632B1 (de) 2012-01-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP09757257A Active EP2280632B1 (de) 2008-06-02 2009-06-02 Geschirrspülmaschine mit einer vorrichtung zum spaltweisen öffnen der tür

Country Status (6)

Country Link
US (1) US8882933B2 (pl)
EP (1) EP2280632B1 (pl)
AT (1) ATE542465T1 (pl)
ES (1) ES2378132T3 (pl)
PL (1) PL2280632T3 (pl)
WO (1) WO2009146874A1 (pl)

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DE4420775C1 (de) * 1994-06-15 1995-08-03 Ymos Ag Ind Produkte Geschirrspülmaschine
DE4443849A1 (de) 1994-10-25 1996-05-02 Bauknecht Hausgeraete Verfahren und Vorrichtung zum Trocknen von Geschirr in einer Geschirrspülmaschine
ES1052969Y (es) * 2002-09-26 2003-06-16 Fagor S Coop Dispositivo para el equilibrado de la puerta de un lavavajillas.
US7731806B2 (en) * 2003-02-25 2010-06-08 Illinois Tool Works, Inc. Automatic door for dishwasher
EP1697607B1 (de) * 2003-11-14 2007-08-22 BSH Bosch und Siemens Hausgeräte GmbH Elektrisches haushaltsgerät mit kindersicherung
DE102005028449B4 (de) * 2005-06-17 2007-03-08 Miele & Cie. Kg Geschirrspülmaschine mit einem Spülbehälter, der durch eine Tür verschließbar ist, und Verfahren zur Durchführung eines Spülprogramms in einer solchen Geschirrspülmaschine
DE102006054414B3 (de) 2006-11-16 2008-01-31 Miele & Cie. Kg Türschloss für ein Haushaltgerät

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US8882933B2 (en) 2014-11-11
EP2280632A1 (de) 2011-02-09
WO2009146874A1 (de) 2009-12-10
ES2378132T3 (es) 2012-04-09
US20110074261A1 (en) 2011-03-31
ATE542465T1 (de) 2012-02-15
PL2280632T3 (pl) 2012-05-31

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