DE102013225402A1 - Domestic appliance with a retractable in a storage space door and sliding axis of rotation of a storage unit and method for opening and closing such a door - Google Patents

Abstract

The invention relates to a household appliance (1) having a housing (2) surrounding a receiving space and having a door (3) with which a loading opening of the receiving space can be closed and which is arranged so as to be pivotable relative to the housing (2), and opened state in a storage space (14) in the housing (2) is retractable, wherein the door (3) is coupled to a guide device (18), with which the movement is guided in and out of the storage space (14), and the guide device (18) has at least one bearing unit (17) which is rotatably mounted about a rotation axis (A) and on which guide elements (19, 20) are arranged, wherein the guide device (18) is designed such that on a first movement part of a between an open and a closed position of the door (3) dimensioning Gesamtbewegungswegs the door (3) the axis of rotation (A) of the bearing unit (17) on a displacement path (30) in one direction away moved horizontally from the receiving space to the front. The invention also relates to a method for opening and closing a door (3).

Description

The invention relates to a household appliance with a housing which surrounds a receiving space. The household appliance further comprises a door with which a loading opening of the receiving space is closable and which is arranged relatively pivotable to the housing. The door is retractable in the open state in a storage space in the housing, wherein the door is coupled to a guide device. With the guide device, the movement is guided in and out of the stowage space. The guide device comprises at least one bearing unit, which is rotatably mounted about a rotation axis and on which guide elements are arranged. Furthermore, the invention also relates to a method for opening and closing a door of a household appliance, which can be sunk in a storage space.

Out DE 10 2008 010 526 A1 a home appliance device with at least one door unit is known. The door unit is attached with hinges to a housing of the household appliance and can be pivoted relative thereto and in the open state can be lowered into a storage space formed below the receiving space. The hinges also include a U-shaped bracket as a hinge part, on which two rollers are rotatably mounted. The bracket is rigid in itself and pivotable about an axis of rotation.

Also from the EP 2 57 378 A1 is a household appliance with a retractable door known. Again, a hinge with a U-shaped bracket is designed as a storage unit in the form of a hinge rocker with two rollers. This hinge rocker is also rigid in itself, but rotatably arranged on a hinge housing.

The same is true of the EP 2 574 712 A1 known, wherein the design of the hinge is also a hinge housing and a rotatably arranged thereon bearing unit in the form of a U-shaped bracket, which is a hinge hook, is provided.

As a result, a so-called engineering part, which has guideways for this bearing part and receives the rollers when sinking the door to dimension accordingly. In addition, this configuration at specific door positions, when the door is already partially open, and at the same time enters the storage space, a distance between the door leaf of the front front side upper edge, which limits the front storage space, very small. As a result, if necessary, a bumping of the door leaf during the further closing movement or during opening may occur. With regard to this vertical height, the critical points are the flange at the lower area and thus at the lower edge, as well as the intermediate floor of said technical part, which delimits the storage space from above. This intermediate floor forms in particular an upper cover of the storage space. In the known embodiments, the door at the beginning of the opening movement has a small distance from the flange or to the front edge of the false floor. From the middle to the end of the opening movement of the door, the smallest vertical distance between the door and the intermediate floor occurs.

It is an object of the present invention to provide a household appliance and a method for opening and closing a door of a household appliance, in which the motion control is improved and a more efficient space design is achieved.

This object is achieved by a household appliance and a method according to the independent claims.

An inventive household appliance comprises a housing which surrounds a receiving space. A door of the household appliance is arranged for closing a charging opening of the receiving space, and the door is arranged relatively pivotable relative to the housing. The door is recessed in the housing in the fully opened state in a storage space, wherein it is coupled to a guide device, with which the movement is guided in the storage space and from the storage space. The guide device comprises at least one bearing unit, which is rotatably mounted about a rotation axis and on which guide elements are arranged. An essential idea of the invention is to be seen in that the guide device is designed such that a rotational axis of the bearing unit on a displacement path in a direction away from the receiving space on a first movement partial path of a between an open and a closed position of the door dimensioning Gesamtbewegungswegs the door is moved horizontally forward or is displaced. As a result, a displacement of this axis of rotation is achieved relative to the storage space and also to the housing and it is positioned quasi offset in the depth direction of the household appliance offset forward. This is also done by a particular exclusive horizontal change in position of this axis of rotation and thus also the bearing unit pivot point.

The bearing unit is in particular a component of a hinge, with which the door is pivotable. In particular, the bearing unit is a hinge hook, which can be rotated with the axis of rotation relative to a hinge housing. The bearing unit is coupled via this axis of rotation with the hinge housing.

By such a change in position of the axis of rotation relative to components of the household appliance, in particular to the storage space, in particular a front edge of a false floor covering the storage space from above and / or a lower edge or a lower edge of a front flange, which limits the feed opening, the Motion control of the door to the effect improved that an undesirable approaching or touching if necessary this front edge of the intermediate bottom and / or the lower edge of the flange is prevented. Damage to the door during pivoting can be prevented, and a space reduction in the vertical direction of a technical part is achieved.

With the horizontal displacement of this axis of rotation forward and thus a distance of this axis of rotation in the depth direction of the household appliance is considered to be enlarged to a rear side of the household appliance.

It is preferably provided that the displacement is less than 9 cm, in particular less than or equal to 8 cm. It is preferably between 1 cm and 8 cm.

In particular, it is provided that the guide device has a displacement device, by means of which this change in position of the axis of rotation is achieved in the horizontal direction. This first movement sub-path is measured starting from the closed position of the door up to an opening angle of less than 15 °, in particular less than 10 °. This means that even with a minimum actuation of the door controlled by a user or an automatic opening by the control unit, practically no pivotal movement occurs but initially, similar to a baking cart, only a horizontal displacement of the door occurs. The complexity of the door movement is thereby reduced and the position adjustment for further pivoting and retracting into the storage space is favored.

It is preferably provided that a rotational movement of the bearing unit about the axis of rotation on the first movement part path is blocked by a locking device. As a result, the above-mentioned advantages are reinforced again and unwanted retraction of the door in the storage space by an already performed in the horizontal displacement pivoting is thereby prevented. In particular, this also positions of the door can be prevented on this first movement partial path, which would lead to a particular cause of gravity, jerky folding movement of the door down.

Unwanted acceleration forces, which could then lead to undesirable leverage and stress on the components of the guide device and the door, are thereby prevented.

Preferably, it is provided that the bearing unit has a U-shaped bracket and the axis of rotation is formed on a bracket leg and the guide elements are arranged on a second bracket leg. In particular, this bearing unit is a rigid component, so that the guide elements are fixed in their position to each other as well as the positions of the guide elements are fixed to the axis of rotation of the bearing unit. This is formed on the Gesamtbewegungsweg the door and thus also the storage unit accordingly.

It is preferably provided that the guide elements are rotatably arranged on the bearing unit, in particular the guide elements are rollers. The motion control of the bearing unit on the one hand in a technical part, in which a guide track or a guide slot for moving the door in the storage space or from the stowage space is made possible, is favored, since a corresponding sliding and jerk-free movement is possible. This also forces, especially frictional forces can be minimized and thus the wear can be minimized.

It is preferably provided that retraction of the door into the stowage space is prevented on the first movement partial path.

In particular, it is provided that the overall movement path of the door has a second movement partial path adjoining the first movement partial path, on which the door enters the storage space. In particular, it is provided that, at a transition between the two movement partial paths, the rotationally locked state of the storage unit can be automatically released by a release device. This is advantageous in that again a very user-friendly and thus jerk-free and smooth motion control over the Gesamtbewegungsweg is possible and yet individual functionalities and positions of the door or the components can be met and adjusted in the individual, the Gesamtbewegungsweg characterizing movement partial paths, so on the entire path of movement unwanted striking or contacting an inside or outside of a door panel is prevented to equipment components.

In particular, thus striking an inner side of a door leaf of the door at one Front edge of the intermediate bottom of the storage space and / or prevented at a lower edge of a Muffelflansches.

It is preferably provided that a stop is formed, by means of which an end position of the door which is pulled out to the front is predetermined with the bearing unit at the end of the first movement partial path. In this horizontal forward displacement of the axis of rotation on the first movement partial path thus a haptic perceptible end position is defined, so that here too the motion control and the entire trajectory of the door is designed and adapted to demand, so that it can be done very user friendly, on the other hand allows a smooth motion control.

Furthermore, the invention also relates to a method for opening and closing a door of a domestic appliance which is provided with a housing which surrounds a receiving space and with a door with which a loading opening of the receiving space can be closed and which is arranged so as to be relatively pivotable on the housing, is trained. In the open state of the door this is recessed in a storage space in the housing, wherein the door is coupled with a guide device with which the movement guide is led out into the storage space and from the storage space. The guide device is formed at least with a bearing unit which is rotatably mounted about a rotation axis and on which guide elements are arranged. An essential idea is to be seen in the fact that a rotational axis of the bearing unit is moved horizontally forward on a first movement partial path of an overall movement travel of the door between an open and a closed position of the door.

In particular, an at least greater rotational movement, in particular greater than 15 °, of the bearing unit about the axis of rotation on the first movement partial path is blocked by a blocking device.

Preferably, the Gesamtbewegungsweg the door is divided with a subsequent to the first movement part path second movement part path, wherein on the second movement part path, the door enters the storage space and is automatically released at a transition between the two movement parts of the rotationally locked state of the storage unit by a release device.

On the first partial movement path, the door is not retracted into the storage space.

Advantageous embodiments of the household appliance according to the invention are to be regarded as further advantageous embodiments of the method according to the invention. It is possible through the individual components of the household appliance, their design, arrangement and functional interaction, the implementation of the respective processes when opening and closing the door.

Further features of the invention will become apparent from the claims, the figures and the description of the figures. The features and feature combinations mentioned in the description as well as the features and feature combinations mentioned below in the description of the figures and / or shown alone in the figures can be used not only in the respectively specified combination but also in other combinations or in isolation, without the scope of To leave invention. Thus, embodiments of the invention are to be regarded as encompassed and disclosed, which are not explicitly shown and explained in the figures, however, emerge and can be produced by separated combinations of features from the embodiments explained.

Embodiments of the invention are explained in more detail below with reference to schematic drawings. Show it:

1 a perspective view of an embodiment of a household appliance according to the invention;

2 a side view of an embodiment of a storage unit of a guide device for the door of the household appliance according to 1 ;

3 a schematic side view of a partially opened door with the storage unit according to 2 and other components of the guide device; and

4 a schematic side view of sub-components of the household appliance in the front lower area.

In the figures, identical or functionally identical elements are provided with the same reference numerals.

In 1 is in a schematic perspective view as an oven 1 trained home appliance shown. The oven 1 includes a housing 2 , in which a limited by a muffle, not shown cooking space is formed. In the oven food can be introduced for preparation. The oven is front through a door 3 lockable in 1 in the closed end position is shown. At the front of the door 3 is a handle 4 educated.

In addition, the oven includes 1 an operating device 5 in the position and display merely by way of example a display unit 6 and controls 7 and 8th having.

In addition, are also in terms of position and number only exemplified cooking zones 9 . 10 . 11 and 12 shown.

The door 3 may be in their lower range 13 in the case 2 be pushed or sunk, resulting in the transfer of the door 3 from the in 1 shown closed end position in the fully open end position is the case. The door 3 is then in a free space of the housing 2 sunk inserted inserted, with this by a space arranged below the cooking chamber and separated by this by a corresponding partition wall storage space 14 is trained.

The door 3 is with door hinges shown and marked by way of example 15 and 16 connected and pivotable about this and in said storage space 14 retractable and extendable.

In 2 is a storage unit in a side view 17 shown, which is designed as a U-shaped bracket. The storage unit 17 represents a hinge hook of a hinge 15 respectively 16 dar. The hinges 15 and 16 are particularly identical and functionally identical, so that the following explanation applies to one of the two hinges also for the other.

The hinges 15 and 16 have next to each provided storage unit 17 also a hinge housing, which is not shown here in detail. These hinges 15 and 16 are each a guide device 18 ( 3 ) associated with the components and the functions. The door 3 is by means of these guiding devices 18 motion-guided and thereby coupled accordingly, allowing them in the storage space 14 in and out of the storage space 14 led out. The storage unit 17 includes a fulcrum on a rotation axis A, which is in 2 extends perpendicular to the plane of the figure, is arranged. At this axis of rotation A is the storage unit 17 also connected to the hinge housing and pivotable relative to the hinge housing. The storage unit 17 includes two guide elements 19 and 20 formed as rollers and rotatably supported on the bearing unit 17 are arranged. The storage unit 17 includes a first stirrup leg 21 having the hinge pivot point or the axis of rotation A. It also includes a second hanger arm 22 on which the two guide elements 19 and 20 are arranged.

The storage unit 17 is rigid in its U-shaped bracket, that is, the two strap legs 21 and 22 are not movable relative to each other.

The second guide element 20 is rotatably mounted about a rotation axis B. The first guide element 19 is rotatable about an axis C, which extends parallel to the axis A and the axis B itself.

The axis C has a distance a1 to the axis A and the axis B has a distance a2 to the axis A.

The second hanger leg 22 can thus be pivoted along the arrow P about the axis B back and forth.

By a particular before retracting and / or pivoting the door 3 in the storage space 14 caused horizontal change in position of the axis of rotation A is a vertical distance and thus a dimensioned in the z-direction distance between the door 3 , in particular an inner side of a door leaf, and an intermediate floor 23 ( 4 ), the storage space 14 bounded from above and / or a vertical distance between a lower edge 24 a front flange of the cooking chamber limiting muffle during subsequent pivoting of the door 3 on a second partial movement path, which connects to a horizontal displacement of the axis of rotation A representing the first movement partial path increases.

The first guide element 19 is at an upper free end 25a of the second stirrup leg 22 arranged and the second guide element 20 is at one of the free ends 25a opposite end 25b of the second stirrup leg 22 arranged.

In addition, it is also provided that retracting the door on the first partial movement path 3 in the storage space 14 is prevented. It is thus carried out on this first movement partial path in particular only a pivoting and a movement of the bearing unit 17 seen as a whole and thus prevented a shift of the axis A in their position.

In 3 , which has already been addressed, a vertical height h is drawn, which is the extension of a technical part 26 , which of the guide device 18 belongs. The engineering part 26 describes, in particular, a component that also has a groove or a guideway 27 in which the guide elements 19 and 20 when passing the door 3 in the storage space 14 are guided.

For appropriate guidance is also a slide carriage 28 provided in the guideway 27 slides along and the guide device 18 is associated.

In 4 is a schematic side view of an enlarged partial sectional view of the oven 1 shown, here a front lower area is shown. As can be seen, there is a vertical distance a3 between the intermediate floor 23 and an inside of the door 3 present, characterized by a preceding horizontal displacement of the axis of rotation A before the actual pivoting movement and thus the retraction of the door 3 in the storage space 14 can achieve. This distance a3 would not exist without such horizontal displacement of the axis of rotation A at this height and thus a smaller distance only available. By such an increase in distance between the intermediate floor 23 and / or a lower front edge 24 of the flange to the inside of the door 3 is a component reduction of the engineering part 26 achieved, whereby, for example, the cooking chamber of the household appliance or the oven 1 can be increased.

In the illustration in 4 First, the axis of rotation A, which extends perpendicular to the plane of the figure, shown in its horizontal position (position in the x direction) when the door 3 is arranged in its fully closed position.

Starting from this horizontal position is then at an opening initiation of the door 3 by a first partial movement path of the door 3 performed a horizontal shift. In particular, it is provided that this first Bewegungssteilweg starting from the fully closed position of the door 3 measured and up to an opening angle less than 15 °, in particular less than 10 °, is sufficient. In particular, only a horizontal movement of the door is absolutely priority on this first partial movement path 3 carried out and the possibly minimal pivoting of the door 3 negligible in the sense.

On this first partial movement path is also no retraction of the door 3 in the storage space 14 carried out.

The guiding device 18 covers for the horizontal displacement of the door 3 and at least some components of the guide device 18 , in particular the storage unit 17 , a displacement device 29 , in the 4 is indicated only with the corresponding reference numerals, but component-specific not shown in detail.

By means of this displacement device 29 is preferably exclusively only a horizontal change in position of the axis of rotation A on a displacement 30 carried out. The displacement path 30 has a maximum length of a4. This way of moving 30 is in particular less than 9 cm, in particular less than or equal to 8 cm, preferably between 1 cm and 8 cm.

Is then this horizontal displacement and thus a shift in the direction away from a receiving space or cooking chamber of the oven 1 completed horizontally forward and thus in the negative x-direction, is then on a subsequent second partial movement path, which together with the first partial movement path the total movement path of the door 3 defined from the fully closed position to the fully open position, retraction of the door 3 in the storage space 14 carried out. In this first partial movement path, the horizontal position is reached at the end of it, so that it is displaced position, so that this by the axis of rotation A 'in 4 is marked. Starting from this position of the axis of rotation A 'then the pivotal movement of the door 3 completed on the second partial movement path and then entering the storage space 14 carried out. In 4 Here is a snapshot shown at the door 3 already located on the second movement partial path and has already been pivoted, so that they are already easy in the storage space 14 retracted.

As already known then, is in this retraction in the storage space 14 the movement of the storage unit 17 to the back in the storage space 14 also done and this over the sled 28 reached.

In addition, it should be mentioned that on the first partial movement path, an at least larger rotational movement, in particular greater than 15 °, of the bearing unit 17 about the axis of rotation A by a locking device 31 , which is likewise only by the reference numeral, but component-specific unspecified, for the clarity in 4 not impaired, is locked.

In particular, it is also envisaged that during the movement of the door 3 from the closed to the open position at the transition between the first partial movement path and the second partial movement path of the rotationally locked state of the bearing unit 17 , as set on the first movement partial path, by a release device 32 is automatically detachable. Also this release device 32 is merely shown with a reference numeral, the clarity serving in 4 but not shown in detail.

In addition, in particular a stop is formed, through which a forward pulled out end position of the door 3 , as it is reached at the end of the first movement part, is given. By the horizontal displacement of the axis of rotation A during the opening movement of the door 3 on the first movement partial path, the entire opening movement of the door shifts 3 also outside the engineering section 26 , As a result, the vertical distance a3 increases on the second movement partial path. As a result, a construction space reduction of the engineering part 26 reached.

LIST OF REFERENCE NUMBERS

1

 oven

2

 casing

3

 door

4

 Handle

5

 operating device

6

 display unit

7

 operating element

8th

 operating element

9

 cooking zone

10

 cooking zone

11

 cooking zone

12

 cooking zone

13

 Area

14

 stowage

15

 door hinge

16

 door hinge

17

 storage unit

18

 guiding device

19

 guide element

20

 guide element

21

 First hanger leg

22

 Second stirrup leg

23

 false floor

24

 Lower edge

25a

 The End

25b

 The End

26

 technology part

27

 guideway

28

 setting slide

29

 Shifter

30

 displacement

31

 locking device

32

 release device

A, A '

 axis of rotation

B

 axis

C

 axis

a1

 distance

a2

 distance

a3

 distance

a4

 length

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102008010526 A1 [0002]
• EP 257378 A1 [0003]
• EP 2574712 A1 [0004]

Claims (14)

Household appliance ( 1 ) with a housing ( 2 ), which surrounds a reception room, and with a door ( 3 ), with which a loading opening of the receiving space is closable and which relatively pivotable to the housing ( 2 ) is arranged, and in the open state in a storage space ( 14 ) in the housing ( 2 ) is retractable, the door ( 3 ) with a guiding device ( 18 ), with which the movement into and out of the storage space ( 14 ), and the guiding device ( 18 ) at least one storage unit ( 17 ), which is rotatably mounted about a rotation axis (A) and on which guide elements ( 19 . 20 ) are arranged, characterized in that the guiding device ( 18 ) is formed such that on a first movement part of a path between an open and a closed position of the door ( 3 ) dimensioning overall movement path of the door ( 3 ) the axis of rotation (A) of the bearing unit ( 17 ) on a displacement path ( 30 ) is moved horizontally forward in a direction away from the receiving space. Household appliance ( 1 ) according to claim 1, characterized in that the displacement path ( 30 ) is smaller than 9 cm, in particular smaller than 8 cm. Household appliance ( 1 ) according to claim 1 or 2, characterized in that the first movement part way starting from the closed position of the door ( 3 ) and up to an opening angle of less than 15 °, in particular less than 10 °, is sufficient. Household appliance ( 1 ) according to one of the preceding claims, characterized in that a rotational movement of the bearing unit ( 17 ) about the axis of rotation (A) on the first movement part path through a locking device ( 31 ) Is blocked. Household appliance ( 1 ) according to one of the preceding claims, characterized in that the storage unit ( 17 ) has a U-shaped bracket, and on a first bracket leg ( 21 ) the axis of rotation (A) is formed and on a second bracket leg ( 22 ) the guiding elements ( 19 . 20 ) are arranged. Household appliance ( 1 ) according to one of the preceding claims, characterized in that the guide elements ( 19 . 20 ) rotatable on the bearing unit ( 17 ) are arranged, in particular the guide elements ( 19 . 20 ) Are roles. Household appliance ( 1 ) according to one of the preceding claims, characterized in that on the first partial movement path a retraction of the door ( 3 ) in the storage space ( 14 ) is prevented. Household appliance ( 1 ) according to one of the preceding claims, characterized in that the total movement path of the door ( 3 ) has a second movement partial path adjoining the first partial movement path, on which the door ( 3 ) in the storage space ( 14 ) retracts. Household appliance ( 1 ) according to claim 8, characterized in that at a transition between the movement partial paths of the rotationally locked state of the storage unit ( 17 ) by a release device ( 32 ) is automatically detachable. Household appliance ( 1 ) according to one of the preceding claims, characterized in that a stop is formed, through which a forward pulled out end position of the door ( 3 ) with the storage unit ( 17 ) is specified at the end of the first movement partial path. Method for opening and closing a door ( 3 ) of a household appliance ( 1 ), which with a housing ( 2 ), which surrounds a reception room, and with a door ( 3 ), with which a loading opening of the receiving space can be closed and which is arranged so as to be pivotable relative to the housing, is formed, and in the opened state into a storage space (FIG. 14 ) in the housing ( 2 ) is sunk, with the door ( 3 ) with a guiding device ( 18 ) is coupled, with which the movement guide into and out of the storage space ( 14 ), and the guiding device ( 18 ) at least one storage unit ( 17 ), which is rotatably mounted about a rotation axis (A) and on which guide elements ( 19 . 20 ) are arranged, characterized in that on a first partial movement path of a between an open and a closed position of the door ( 3 ) dimensioning overall movement path of the door ( 3 ) an axis of rotation (A) of the bearing unit ( 17 ) on a displacement path ( 30 ) is moved horizontally forward in a direction away from the receiving space. A method according to claim 11, characterized in that a rotational movement of the bearing unit ( 17 ) about the axis of rotation (A) on the first movement part path through a locking device ( 31 ) is locked. A method according to claim 12, characterized in that the total movement path of the door ( 3 ) has a second movement partial path adjoining the first partial movement path, on which the door ( 3 ) in the storage space ( 14 ) and at a transition between the movement parts of the rotationally locked state of the storage unit ( 17 ) by a release device ( 32 ) is solved automatically. Method according to one of claims 11 to 13, characterized in that on the first partial movement path the door ( 3 ) not in the storage space ( 14 ) is retracted.

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