EP2394561A2 - Washing machine, in particular domestic dishwasher, with an automatically opening door - Google Patents

Abstract

The machine i.e. dishwasher (1), has a force-locking latching mechanism i.e. door lock (3), placed on a washing chamber (10), where the latching mechanism is arranged to hold an appliance door (2) in a closed position and to release the door in response to a pulling force. A door opening system includes a push-open unit (5) that is arranged to automatically open the door to an ajar position, where the push-open unit includes a motor-driven push-type opening bar (504). A magnetic coupler is arranged to retain the door on the push-type opening bar.

Description

The invention relates to a dishwashing machine, in particular a domestic dishwasher, with a washing compartment which can be closed by a pivotable door, and which is optionally surrounded by a carcass, wherein the door is automatically opened by a motor-operated opening device in the form of a Aufdrückeinheit at least one nip width and Aufdrückeinheit and door remain in a releasable coupling.

From the EP 0 687 439 A1 is a dishwasher known, in which also after the completion of the rinsing and drying process, the door is opened in columns by a motor-driven locking cam. Here the locking pin remains after the end of the program in this slightly open position. The user should thereby be facilitated after unloading the device, the closing of the door, because then the door is pulled with the locking pin 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 projects far into the room. In this position, the cock is a risk of injury and can also be easily damaged.

From the WO 2009/146 874 A1 It is known to move the closing chamber arranged on the washing chamber for the gap-wise opening of the door by means of a drive. Here, the drive is realized by a spring, which is biased by the further opening of the door.

The object of the present invention is to disclose a washing machine of the type mentioned, which has a simple design and easy and safe to operate opening device.

According to the invention this object is achieved by a washing machine with the features of claim 1.

The fact that the motor of the opening device when extending the Aufdrückeinheit spans a spring which retracts the Aufdrückeinheit after releasing the clutch, a simple design and works with few parts return mechanism is created.

It is expedient if the Aufdrückeinheit is designed as Aufdrückstößel. A magnetic coupling that holds the door to the push rod provides a simple safety feature that prevents the door from falling when it is automatically opened. Such a coupling is particularly advantageous if the door by a non-positive locking device held in the closed state and can be unlocked by a tensile force.

The spring can be formed in the simplest way as a torsion spring. It can then concentrically surround a shaft arranged between the motor and the push rod.

In order to enable the operation of the spring and the retrieval of the Aufdrückstößel without a mechanical intervention of the operator, it is advantageous if between the engine of the opening device and the Aufdrückstößel a freewheel is arranged. The freewheel should allow movement of the Aufdrückstößels by the torsion spring in the manner that the Aufdrückstößel is transferred from an extended state in an at least approximately fully retracted state. In a very simple and functionally safe variant, the freewheel comprises an inner sleeve, an outer sleeve and a slide element. One of the sleeves may then be non-rotatably connected to the shaft, the other sleeve may be rotatably mounted on the shaft and drive the Aufdrückstößel, and the carriage member may be moved by the rotation of one of the sleeves between two arranged on one of the sleeves attacks.

In a particularly advantageous variant of the freewheel can be locked in a stop position. This ensures that in the event of breakage of one or both door springs, the magnetic coupling is not released automatically and the door falls to the horizontal.

• Figur 1 einen Geschirrspüler mit einer spaltweise geöffneten Gerätetür in der perspektivischen Ansicht,
• Figur 2 einen Ausschnitt der Figur 1 in einer vergrößerten Darstellung,
• Figur 3 Einzelheiten der Aufdrückeinheit in der Draufsicht ohne Gehäusedeckel,
• Figur 4 Ausführungsdetails der Aufdrückeinheit in einer Explosionsdarstellung,
• Figur 5 die Unterseite des Aufdrückstößels in perspektivischer Darstellung,
• Figur 6 die Unterseite des Aufdrückstößels in der Draufsicht,
• Figur 7 die Unterseite des Aufdrückstößels mit verschiedenen Zustandspunkten der
  Bahnführung,
• Figur 8 eine alternative Ausführungsform eines Freilaufs,
• Figur 9 die Innenhülse des Freilaufs gemäß Figur 8 als Einzelheit.

An embodiment of the invention is shown purely schematically in the drawings and will be described in more detail below. It shows

• FIG. 1 a dishwasher with a split-open appliance door in the perspective view,
• FIG. 2 a section of the FIG. 1 in an enlarged view,
• FIG. 3 Details of the Aufdrückeinheit in plan view without housing cover,
• FIG. 4 Embodiment details of the Aufdrückeinheit in an exploded view,
• FIG. 5 the underside of the Aufdrückstößels in perspective view,
• FIG. 6 the underside of the push rod in plan view,
• FIG. 7 the underside of the push rod with different state points of the
  Web guide,
• FIG. 8 an alternative embodiment of a freewheel,
• FIG. 9 the inner sleeve of the freewheel according to FIG. 8 as a detail.

Construction and arrangement of the Aufdrückeinheit

The FIG. 1 shows a dishwasher 1 with a split-open appliance door 2 in the perspective view, FIG. 2 shows a part of the FIG. 1 in an enlarged view. In these figures, the lid of the dishwasher 1 is removed in order to have an insight into the underlying, essential to the invention components. Other, not essential to the invention components are omitted. The door 2 closes the front opening 12 of a washing compartment 10. In this case, the door 2 is held in the closed position by a centrally arranged flushing chamber-side locking device, hereinafter referred to as a door lock 3. Furthermore, the dishwasher 1 according to the invention has an automatic opening device, hereinafter referred to as an impression unit 5. The door lock 3 is equipped with a spring-mounted roller 30, which engages behind a door latch 3 opposite latch in the form of a survey 22 door side. The Aufdrückeinheit 5 is preferably located to the left of the Spülraumseitigen door lock 3 at an angle which is formed by housing parts 500 and 502 described elsewhere. It can also be arranged on the right side. The right-side arrangement of the Aufdrückeinheit 5 offers itself in narrow dishwashers 1.

The door lock 3 is advantageously located centrally in a U-shaped stabilizing bar 14 of the washing compartment 10 of the dishwasher 1. The Aufdrückeinheit 5 and the door lock 3 are not connected to each other and therefore form two independent components, which also simplifies the formation of design variants. Thus, the Aufdrückeinheit 5 can be used in dishwashers 1 with door-side, non-positive door lock 3. Furthermore, the door lock 3, if necessary, without Aufdrückeinheit 5, z. B. in inexpensive dishwashers 1, use. If the aforementioned advantages of the separation of door lock 3 and Aufdrückeinheit 5 are not considered essential, these two modules can also be combined to form a common unit.

drive

The FIG. 2 also illustrates further embodiment details according to the invention. Thus, the Aufdrückeinheit 5 on a Aufdrückstößel 504, which is mainly by means of its laterally between the dishwasher side wall 16 and the radial transition from the Spülraumdeckel arranged to the Spülraumseitenwand motor 506 is moved. Preferably, the axis of rotation of the shaft (in FIG. 3 indicated as a dash-dot line 508) of the motor 506 parallel to the direction of movement of the Aufdrückstößels 504. This advantageously provides the possibility to use different drive versions (synchronous motor, DC motor) in the Aufdrückeinheit 5. In particular DC motors are relatively long compared to the motor diameter - only in the described, parallel mounting position, the installation situation in the dishwasher 1 here one degree of freedom. Furthermore, this allows Installation position the formation of design variants - mainly the above-described design variant of handle-less fully integrated dishwasher 1 requires a DC motor to implement a rapid opening movement. In the normal case, ie for automatic opening of the door 2 for drying support, the motor 506 is designed as a double-coil synchronous motor. Due to its low speed of about 250 or 500 revolutions per minute, the door 2 is opened relatively slowly with appropriate gear design in about 15 to 20 seconds. Advantages of such synchronous motors are the very low operating noise, low cost and the possibility of operation with mains AC voltage, which allows a relatively simple control by the program electronics, not shown. If a higher door opening speed is required such. B. when reaching the door of a handle-less fully integrated dishwasher 1, a low-voltage DC motor is preferably used instead of the double-coil synchronous motor. At typical speeds of 2500 to 5000 revolutions per minute, the dishwasher door is then opened in 1.5 to 2 seconds. Preferably, the drive is designed so that the Aufdrückeinheit 5 at constant gear levels 510 (in FIG. 3 ) can be operated without further changes both with a double coil synchronous motor and with a low voltage DC motor.

wave

Further inventive details of the Aufdrückeinheit 5 shows the FIG. 3 in plan view without housing cover 502.

The transmission of the torque of the motor 506 to the Aufdrückstößel 504 by means of the gear stages 510 and a relative to the motor shaft 508 and the direction of movement of the Aufdrückstößels 504 positioned at right angles shaft 512. The gear stages 510 perform on the one hand a reduction function - ie the reduction of the drive speed - and cause on the other hand, a 90 ° deflection of the axis of rotation by means of a bevel gear or Schneckenradstufe. The shaft 512 is mounted on the left or motor side directly in the lower housing part 500. On the right side or plunger side, the bearing plate 514 takes over the bearing of the shaft 512 in the lower housing part 500. In the FIG. 4 is denoted by 516, the end of the shaft 512, which is rotatably received in the bearing plate 514. Aufdrückstößel 504 and shaft 512 form two right angles 518 and 520, which are also found in the two housing parts 500 and 502. There, the door lock 3 is placed.

The FIG. 4 also illustrates further embodiment details of the Aufdrückeinheit 5 according to the invention in an exploded view.

freewheel

On the shaft 512, a freewheel 522 is arranged ( FIG. 3 ) formed by an inner sleeve 524, an outer sleeve 526, and a movable carriage member 528 (FIGS. FIG. 4 ) is formed. The inner sleeve 524 is rotatably connected to the shaft 512. It carries on its surface a helical groove 530, which in a relative movement (rotation) between the shaft 512 and the outer sleeve 526, the carriage member 528 transported. The helical groove 530 is bounded by a left stop 532 and by a right stop 534 (from the position in front of the device). The outer sleeve 526 surrounds the shaft 512 concentrically and is thus rotatably supported on it. It has two parallel to the shaft guide grooves 536 which receive the guide webs 538 of the carriage member 528. Due to the above-described arrangement, the slide member 528 reciprocates between the two stops 532 and 534, depending on the direction of rotation of the shaft 512 and the outer sleeve 526, respectively. As a result, between the shaft 512 and the outer sleeve 526 of the freewheel 522, since during the movement of the carriage member, the rotation of the shaft 512 and the inner sleeve 524 is not transmitted to the outer sleeve 526. The number of free running revolutions can be varied by the length of the helical groove 530. A transmission of the rotational movement of the shaft 512 to the outer sleeve 526 takes place again only when the carriage member 528 has arrived at the left stop 532 or the right stop 534 (depending on the direction of rotation).

Pinion with friction clutch

On a continuation 540 of the outer sleeve 526, a double pinion 542 is mounted ( FIG. 4 ). It engages in side gears 544 on the underside of the push rod 504, see FIGS. 5 to 7 , The double pinion 542 is driven by intermeshing serrations 546 from the outer sleeve 526 of the freewheel 522. The two serrations 546 are compressed by a compression spring 548 via a driver 550 and the double pinion 542. This creates a mechanical overload protection or a slip clutch. The transmissible by the slip clutch torque can be adjusted by means of the oblique angle of the serrations 546 and 548 by the force of the compression spring. Between the bearing plate 514 and the driver 550, a torsion spring 552 is arranged concentrically around the compression spring 548 on a spring sleeve 554, the function of which is explained below.

Push rod, armature, micro switch, torsion spring

The double pinion 542 drives the push rod 504. This presses to open the door 2 in the fold of the door inner panel 20 and releases the roller 30 of the door lock 3 from the latch 22. On the underside of the push rod 504 is located between the side gears 544 a web guide 556. In the web guide 556 engages a locking pin 558 which is integrally formed on an armature 560, see the synopsis of FIGS. 4 and 5 , The armature 560 is pivotally mounted in a receptacle 562 on the housing lower part 500. He has two functions. On the one hand he holds over the locking pin 558 the push rod 504 in certain positions, see the description of the FIG. 7 in the chapter "Function sequence". On the other hand, it operates with a boom 564 a microswitch 570 when the push rod 504 is moved into its end position in the housing (500, 502). The microswitch 570 is queried by a controller, not shown, of the dishwasher 1. Preferably, when the motor 506 is designed as a synchronous motor or double-coil synchronous motor, all other deviating from the rear plunger end positions of the Aufdrückstößels 504 are timed started. Alternatively, especially when the motor 506 is designed as a low-voltage DC motor, all other deviating from the rear plunger end positions of the Aufdrückstößels 504 by one or more additional micro-switch (not shown) are sensed. All other functions achieved by the interaction of the locking pin 558 with the web guide 556 on the underside of the push-pull ram 504 are also explained in the chapter "Function sequence".

The appliance door 2 is opened by extending the Aufdrückstößels 504 about 100 mm wide. In this state, the door 2 is held magnetically. For this purpose, a ferromagnetic metal insert 566 is attached to the push rod 504 and positioned at the appropriate place behind the inner door panel, a magnet 24, then interact. The magnetic support ensures that the door 2 is held in automatic door opening in the event of a tendency to open by itself. This can be z. B. may be required if too weak or broken door springs. After the gap-wise automatic opening, the operator can completely open the door 2 for emptying and emptying dishes. The Aufdrückstößel 504 is to be retracted after disconnecting the magnetic holder in any case, even if the operator may have previously switched off the dishwasher 1 and thus disconnected from the mains. Otherwise, there is a risk of injuring or damaging the pushed-out push rod 504. In addition, he would be a hindrance when emptying and clearing the dishes.

To accomplish this task, the torsion spring 552 positioned on the spring sleeve 554 is tensioned during the extension movement of the push-pull ram 504, ie during automatic door opening. The spring 552 is fixed at both ends in not shown receptacles on the driver 550 and on the bearing plate 514. Upon complete opening of the door 2 by the operator of the push rod 504 is through the magnetic support described above pulled out to a front end stop. Then the Aufdrückstößel 504 detached from the door 2 and is retracted by the torsion spring 552 again. This also works when the dishwasher 1 is switched off, so that, in contrast to any alternative electromotive solutions, any standby consumption for control electronics then required is avoided. By means of the spring sleeve 554, the compression spring 548 and the torsion spring 552 are arranged concentrically in one another concentrically or one above the other, space-minimizing on the shaft 512. The bearing plate 514, which is rotatably arranged in the housing lower part 500, serves to mount the shaft 512 and to adjust the pretensioning of the torsion spring 552.

stop spring

For easy opening of the door by the operator outside the rinsing operation, for example, when after closing the rinsed dishes, the door has been closed and now new items to be adjusted, the Aufdrückstößel 504 is provided with a spring stop. This is realized by means of a stop spring 572. The two legs 574 and 576 of the stop spring 572 are clamped biased between the two bearing blocks 578 and 580th The front leg 574 can be pushed by the stop 582 of the Aufdrückstößels 504 by about 15 mm to the rear. When closing the door by the operator, the stop 582 of the Aufdrückstößels 504 first touches the front leg 574 and the lock is in the switching point. In the further course of movement, the operator pushes the door back by a further approx. 5 mm and the roller 30 of the door lock 3 falls behind the latch 22. When the door 2 is closed, the so-urged push-rod 504 presses with a force of, for. B. 25 N from behind against the door, so that the spring force of the Aufdrückstößels 504 of the locking force of the door lock 3 of z. B. counteracts 40 N. In this example, a reduced locking force of the door lock 3 would result from 15N. This allows the operator to open the appliance door 2 particularly easily. If the wash program is started, the push rod 504 is driven by the drive against the force of the stopper spring 572 by another 10 mm in the rear end position and thus does not touch the door. Now the full required to ensure the tightness of the door seal locking force of the door lock 3 of 40 N acts on the door 2, and the flushing operation can be added.

functional sequence

The following is based on the FIG. 7 the functional sequence of the automatic door opening including subsequent closing described. The following table also gives a brief summary of this functional sequence. FIG. 7 shows the bottom of the imprint plunger 504 with the positions of the locking pin 558 within the web guide 556. Therein mark points with position letters states, arrows with position letters mark the transitions between two states. The locking pin 558 is guided in the upper 584, middle 586 or lower 590 gate.

In the flushing operation, the door 2 is closed, the Aufdrückstößel 504 has been withdrawn by the engine 506 and gear 510 existing drive to its final position. There is no contact between door 2 and plunger 504. The drive is stopped, the freewheel 522 is located on the left stop 532. The locking pin 558 is in position A, also actuates the arm 564 of the armature 560 the microswitch 570th To start the automatic opening the drive is switched on and thereby releases the push rod 504. In this case, the stopper spring 572 pushes the push rod 504 out of the housing 500 and 502. The boom 564 releases the microswitch 570 and the lock pin 558 moves over B to C. In position C, the push rod 504 is extended by 15 mm, which corresponds to the travel of the stopper spring 572. In this position, the plunger 504 initially remains, while the freewheel 522 is passed from the left 532 to the right stop 534. As soon as the right stop 534 is reached, the double pinion 542 moves the plunger 504 further forward, the locking pin 558 moves over position D to position E, changing from the upper 584 to the middle 586 gate. Once there, the drive is reversed and the freewheel 522 is traversed back from the right stop 534 to the left 532. After passing through the freewheel 522, the drive is stopped. Depending on the setting of the door springs, the door 2 remains in its position, is a little withdrawn by the tensioned torsion spring 552 on the plunger 504 or opens a bit by itself. Accordingly, the lock pin 558 either remains in the E position, moves to the E.1 position (when the door 2 is retracted), or to the E.2 position (if the door 2 opens by itself). The middle backdrop 586 has a slope 588 at point E.1. Now, when the operator presses the door 2 in the automatically opened position with the push-pull ram 504 extended, the locking pin 558, as the push-in ram 504 is pushed in, moves this bevel upwards and over the path F.1 to the position G. The armature 560 allows the locking pin to be raised 558 on the higher middle gate, because it is hollow in the area of the locking pin 558. On the way F.1, the torsion spring relaxes and the freewheel 522 is traversed by the left stop 532 to the right stop 534. Normally, the operator will continue to open the door after the automatic opening. In this case, the Aufdrückstößel 504 initially further pulled out due to the magnetic coupling until the locking pin reaches the point E.2. Then the clutch breaks apart. The tensioned torsion spring 552 then pulls the plunger 504 back into the housing 5, while the locking pin moves via F from the middle link 586 to the lower 590 to G and is held there. During the return of the plunger 504 is the freewheel 522 pass from the left stop 532 to the right stop 534. Position G of the middle gate is formed as a receptacle in which the locking pin 558 is held. As a result, after a manual opening of the closed door of the push rod 504 is held in this position and does not go out with. With the restart of the program, the plunger 504 is then completely withdrawn and the locking pin 558 moves over H back to the position A on the upper link 584. In this case, the freewheel from the right 534 to the left stop 532 is traversed.

Second freewheel variant

• Die Tür 2 wird bereits im leicht geöffneten Zustand durch ihr Eigengewicht nach unten in die waagerechte Position gezogen. Der Gewichtskraft der Tür 2 wirken die nicht dargestellten, aber aus dem Stand der Technik bekannten Türfedern entgegen. Wenn nun eine oder gar beide Türfedern gebrochen sind, wird die Gewichtskraft nicht mehr oder zu wenig kompensiert. In diesem Fall wird die Tür 2 während des Ausfahrvorgangs des Aufdrückstößels 504 zuerst von der Drehfeder 552 gehalten. Wenn bei einem bestimmten Öffnungswinkel die Gewichtskraft der Tür 2 größer als die Rückhaltekraft der Feder 552 ist, beschleunigt die Tür ihren Fall. Dabei wird bei der ersten Variante des Freilaufs 522 dieser vom rechten Anschlag 534 zum linken 532 durchlaufen und der Aufdrückstößel 504 vollständig bis zum Anschlag herausgezogen. Die dabei entstehende Beschleunigung und das anschließende abrupte Bremsen am Ende der Bahnkurve des Aufdrückstößels 504 kann die Kupplung zwischen Metalleinleger 566 und Magnet 24 trennen. Dann fällt die Tür 2 weiter ungebremst bis in die Waagerechte und kann dabei auf ihrem Weg Personen verletzen oder Gegenstände zerstören.

The FIGS. 8 and 9 show an alternative embodiment of a freewheel 622. This offers over the previously described variant, a security against the following error case:

• The door 2 is pulled in the slightly open state by its own weight down to the horizontal position. The weight of the door 2 counteract the door springs, not shown, but known from the prior art. Now, if one or both door springs are broken, the weight is no longer or not enough compensated. In this case, the door 2 is first held by the torsion spring 552 during the extension operation of the push rod 504. If, at a certain opening angle, the weight of the door 2 is greater than the restraining force of the spring 552, the door will speed up its fall. In this case, in the first variant of the freewheel 522, this passes from the right stop 534 to the left 532 and the push rod 504 is pulled out completely until it stops. The resulting acceleration and subsequent abrupt braking at the end of the trajectory of the push rod 504 may separate the clutch between the metal insert 566 and the magnet 24. Then the door 2 continues unbraked until the horizontal and can injure persons or destroy objects on their way.

" fährt heraus → 0 N bis 20 N -40 N -40 N bis -20 N keine Funktion 0 C Auffahren "

wird von links nach rechts durchlaufen steht 15 mm heraus - 20 N " -20 N " 0 D " "

Anschlag rechts fährt heraus → 20 N bis 0 N -40 N bis 15 N -20 N bis 15 N " 0 E, E.1 oder E.2 Ende Türöffnung Rechtsla uf

wird von rechts nach links durchlaufen steht 90 mm heraus - ON ON ON hält Stößel in Verrastung "Halten/Tür geöffnet" 0 F reguläres Türöffnen/ schließen steht - wird von links nach rechts durchlaufen fährt federunterstützt hinein ← 0 N bis 20 N 15 N bis -40 N 15 N bis -20 N Fährt in Anschlag 0 F.1 Bediener drückt Tür zu steht - wird von links nach rechts durchlaufen fährt federunterstützt hinein ← 0 N bis 20 N 15 N bis-40N 15 N bis -20 N wird über Rampe gedrückt 0 G Türöffnungs-kraftunter-stützung " - wird bidirektional durchlaufen steht 15 mm heraus - 20 N -40 N -20 N hält Stößel in Verrastung "Halten" 0 H Spülposition einnehmen Rechtsla uf

wird von rechts nach links durchlaufen fährt vollständig hinein ← 20 N bis 0 N -40 N -20 N bis -40 N keine Funktion 0 To prevent this is at the in the FIGS. 8 and 9 illustrated variant of the freewheel 622 locked in position on the right stop 634. For this purpose, in contrast to the first variant, an outer sleeve 626 fixed on the drive side to the shaft 512 rotatably. An inner sleeve 624 is partially received by the outer sleeve 626 and is rotatably mounted on the shaft 512. The inner sleeve 624 merges into an extension 640, on which the double pinion 542, the compression spring 548, the torsion spring 552 and the spring sleeve 554 are slidably mounted. The driver for fixing the torsion spring 552 is formed here as a hook 650 to the double pinion 542, the bearing plate 514 and the carriage member 528 are not shown here, but work as in the first variant. Significant difference of the second freewheel variant is in addition to the reversed arrangement of the inner sleeve 624 and the outer sleeve 626, the separation of the right stopper 634 from the rest (left stop 632 and helical groove 630) of the inner sleeve 624 and the equipment of the left stop 632 with a detent 692, which is engageable with the carriage member 528, not shown, can be brought. The right stop 634 has a pin 694 which engages in a bore 696. In this way, the stopper 634 and the rest of the inner sleeve 624 are indeed connected to each other against rotation, but mounted axially displaceable relative to each other. Now, if the carriage member 528 passes through the drive on the freewheel 622 to the right stop 634, it drives the detent 692 high. It pushes the right stop 634 against the compression spring to the right and gets behind the sloping part of the locking bevel 692. Thus, the carriage member 528 is fixed and locks the freewheel 622. The door 2 can then be moved only by means of the drive, an automatic opening and the associated acceleration is prevented. The locking of the freewheel 622 is released again when the outer sleeve 626 is rotated by the drive in the opposite direction and the freewheel 622 is passed through from right to left. Table 1: Positions of the locking pin (558) and functional sequence position device status drive freewheel tappet Impact on lock Schloss effect Closing force total retaining pin Micro switch A flushing stands - Stop left is behind - ON -40 N -40 N Special position for microswitches 1 B Start door opening CCW

" drives out → 0N to 20N -40 N -40 N to -20 N no function 0 C ascend "

is traversed from left to right stands out 15 mm - 20 N " -20 N " 0 D " "

Stop right drives out → 20N to 0N -40 N to 15 N -20 N to 15 N " 0 E, E.1 or E.2 End door opening Legal

is traversed from right to left stands out 90 mm - ON ON ON keeps ram in lock "Hold / door open" 0 F regular door opening / closing stands - is traversed from left to right moves in spring-loaded ← 0N to 20N 15N to -40N 15N to -20N Drives into attack 0 F.1 Operator presses door stands - is traversed from left to right moves in spring-loaded ← 0N to 20N 15N to -40N 15N to -20N is pushed over ramp 0 G Door opening force under-support " - is traversed bidirectionally stands out 15 mm - 20 N -40 N -20 N keeps ram in catch "hold" 0 H Take rinsing position Legal

is traversed from right to left moves in completely ← 20N to 0N -40 N -20 N to -40 N no function 0

Definition of the forces: Force vectors with positive signs point out of the flushing chamber; Force vectors with a negative sign point into the flushing chamber.

LIST OF REFERENCE NUMBERS

1

dishwasher

10

Wash cabinet

12

Spülraumöffnung

14

stabilizing bar

16

Dishwasher sidewall

2

door

20

Inner door panel

22

latch

24

door magnet

3

Door lock (locking device)

30

role

5

Aufdrückeinheit

500

Housing bottom

502

housing cover

504

Aufdrückstößel

506

engine

508

motor shaft

510

gear stages

512

wave

514

end shield

516

shaft end

518

right angle to the shaft and push rod

520

right angle to the shaft and push rod

522

freewheel

524

Sleeve, inner

526

Sleeve, outer

528

carriage element

530

helical groove

532

left stop

534

right stop

536

Guide grooves for carriage element

538

Guide webs of the carriage element

540

Extension of the outer sleeve

542

double pinion

544

lateral teeth of the imprint plunger

546

spur gearing

548

compression spring

550

takeaway

552

torsion spring

554

spring sleeve

556

web guide

558

locking pin

560

anchor

562

Pickup for anchor

564

Boom at anchor

566

ferromagn. metal inserts

570

microswitch

572

stop spring

574

front thigh

576

rear thigh

578

front bearing block

580

rear bearing block

582

Stop of the push rod

584

upper backdrop

586

middle scenery

588

slope

590

lower scenery

622

second variant of the freewheel

624

inner sleeve

626

outer sleeve

630

helical groove

632

left stop

634

right stop

640

extension

650

hook

692

Rest slope

694

Pin of the anti-twist device

696

Bore of the anti-twist device

Claims (11)

Automatic rinsing machine, in particular household dishwasher (1), having a washing compartment (10) which can be closed by a pivotable door (2) and which is optionally surrounded by a body, the door (2) being opened by a motor-operated opening device in the form of an impression unit ( 5) is at least one slot width to open automatically and Aufdrückeinheit (5) and door (2) remain in a releasable coupling,
characterized,
in that the motor (506) of the opening device, upon extension of the push-on unit (5), tensions a spring which retracts the push-on unit (5) after releasing the coupling. Automatic dishwasher according to claim 1,
characterized,
in that the push-on unit (5) is designed as a push-pull ram (504). Automatic washing machine according to claim 2,
characterized,
in that the door (2) on the push rod (504) is durable by means of a magnetic coupling. Automatic dishwasher according to at least one of the preceding claims,
characterized,
that the door (2) by a non-positive locking device (3) held in the closed state and can be unlocked by a tensile force. Automatic dishwasher according to at least one of the preceding claims,
characterized,
that the spring is designed as a torsion spring (552). Automatic dishwasher according to claim 5,
characterized,
in that the torsion spring (552) concentrically surrounds a shaft (512) arranged between the motor and the push rod (504). Automatic dishwasher according to at least one of the preceding claims,
characterized,
in that a freewheel (522, 622) is arranged between the motor (506) of the opening device and the push-on ram (504). Automatic dishwasher according to claim 7,
characterized,
that the free wheel (522; 622) allows movement of the Aufdrückstößels (504) by the torsion spring (552) in such a way that the Aufdrückstößel (504) is almost completely transferred from an extended state at least in a retracted state. Automatic washing machine according to claim 7 or 8,
characterized,
in that the freewheel (522; 622) comprises an inner sleeve (524), an outer sleeve (526) and a slide element (528). Automatic washing machine according to claim 9,
characterized,
in that one of the sleeves (524, 526) is non-rotatably connected to the shaft (512), that the other sleeve (524, 526) is rotatably mounted on the shaft (512) and drives the push rod, and that the slide member (528) the rotation of one of the sleeves (524, 526) between two on one of the sleeves (524, 526) arranged stops (632, 634) moves. Automatic washing machine according to claim 10,
characterized,
in that the freewheel (622) can be latched in a stop position.

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