DE102016219883A1 - Domestic refrigerating appliance with successive shells, wherein a shell has at least three roller assemblies - Google Patents

Abstract

The invention relates to a household refrigerating appliance (1) having a food receiving space (5) delimited by walls of an inner container (4) and a tray arrangement (6) displaceably mounted in the receiving space (5) Shell (7) which is arranged on a closing of the receiving space (5) formed door (8) of the household refrigerating appliance (1) and is coupled to the door (5), and a second shell (9) which is relatively movable to the first shell (7) is mounted, wherein the second shell (9) has a first roller assembly (16) with which the second shell (9) on the first shell (7) is displaceable, and the second shell (9) a second roller assembly (17), with which the second shell (9) on a guide device (19, 20) on a side wall of the inner container (4) is guided, wherein the second shell (9) has a third roller assembly (22) in the depth direction (z) of the second Shell (9) considered offset to the first roller assembly (16) is arranged and / or a fourth roller assembly (23), which is viewed in the depth direction of the second shell (9) offset from the second roller assembly (7).

Description

The invention relates to a household refrigerator with a receiving space for food, which is limited by walls of an inner container. The household refrigerator further comprises a shell assembly which is slidably mounted in the receiving space. The shell arrangement comprises a first shell, which is arranged on a door of the household refrigerating appliance designed to close the receiving space and is coupled with the door in a movement-coupled manner. In addition, the shell arrangement comprises at least a second shell, which is mounted relatively movable to the first shell. The two shells are each designed to hold food. The second shell has a first roller arrangement, with which the second shell is arranged displaceably on the first shell. The second shell further comprises a second roller arrangement, with which the second shell is guided in a guide device, which is formed on a side wall of the inner container.

Such a configuration is for example from the US 2015/0028735 A1 known. There, the two shells are individually and thus relatively movable. However, they are also motion-coupled with each other at least for a certain path of movement of the first shell. Depending on the particular state reached, the two trays can then be made individually accessible. In the embodiment known from the prior art, however, the safe movement of the upper second shell is limited. There may be an undesirable loosening of the shell in certain extension positions. The second shell can therefore also fall down or become detached from the track.

It is an object of the present invention to provide a household refrigerating appliance in which the movement guidance of two shells of a tray arrangement is improved.

This object is achieved by a household refrigerator, which has the features of claim 1.

An inventive household refrigerator comprises a receiving space for food, which is bounded by walls of an inner container. The household refrigerator includes a tray assembly which is slidably mounted in the receiving space. The shell arrangement comprises a first shell which is arranged on a door of the household refrigerating appliance designed to close the receiving space. This first shell is also motion-coupled with this door. This means that upon actuation of the door, which is in particular a front-side outer part and thus a front side of the household refrigeration appliance final part, the first shell is moved and thus during this movement no relative movement between the door and the first shell occurs. In addition, the shell arrangement comprises a separate second shell to the first shell, which is mounted relatively movable to the first shell. The at least two trays of the tray arrangement are each designed to hold foods, such as food and drinks. The shells are in particular designed as respective one-piece trough-like containers.

The second shell comprises a first roller arrangement, with which this second shell is displaceable on the first shell. The two shells are arranged in the vertical direction and thus one above the other and thus virtually stacked to each other. The lower first shell thus also forms a support for the second shell. The second shell also has a second roller arrangement, which is separate from the first roller arrangement and in this respect is also arranged locally differently on the second shell. With this second roller arrangement, the second shell is guided in a guide device, which is formed on a side wall of the inner container. Thus, two separate mechanical coupling points are connected to these two roller arrangements of a second shell, namely on the one hand a mechanical coupling with the first shell and on the other hand a mechanical coupling to the inner container.

An essential idea of the invention is to be seen in that the second shell has a third roller arrangement, which is arranged offset in the depth direction of the second shell to the first roller assembly. Additionally or instead, the second shell has a fourth roller arrangement, which is arranged offset in the depth direction of the second shell to the second roller assembly.

An essential idea of the invention is thus that the second shell has, in addition to the first and the second roller arrangement, at least one further roller arrangement separate therefrom, wherein this further roller arrangement is arranged offset in the depth direction of the second shell relative to the first and the second roller arrangement.

Such a configuration of the second shell with at least one further separate roller arrangement extending beyond the two first roller arrangements improves the motion guidance of the second shell relative to the first shell as well as the motion-coupled guidance of the two shells with one another. In all pullout situations of the shells to each other or with each other thus the safe movement guide is possible and an undesirable slipping or loosening of second shell from its path of movement is thus prevented.

A roller arrangement is to be understood as an embodiment which has at least two separate rollers, these rollers being arranged in the same direction on the same position and thus on the same depth section and in the width direction, on opposite sides of the second shell and spaced apart from each other.

Advantageously, it can be provided that both the third roller arrangement and the fourth roller arrangement is present. In such a configuration of a second shell with four separate roller assemblies, the advantages mentioned above are further improved.

In an advantageous embodiment it can be provided that the third roller arrangement is arranged on the second shell such that the second shell is displaceable on the first shell by means of the third roller arrangement. By this positioning of the third roller assembly and its coupling mechanism with the first shell, the movement guidance of the second shell is made possible on the first shell with at least two separate roller assemblies. By these are also arranged offset in the depth direction to each other even with a variety of relative positions of the two shells to each other in the depth direction always safe positioning of the second shell on the first shell achieved and also allows a very stable and straightforward motion control of the second shell on the first shell , An undesired rotation of the second shell relative to the first shell in a horizontal plane and / or an undesired tilting about an oriented in the width direction of the household refrigerator horizontal axis of the second shell relative to the first shell is thereby prevented. This allows a virtually horizontal position of the two shells to each other in all positions.

In particular, it can be provided that the fourth roller assembly is arranged on the second shell such that the second shell is guided in the guide device on the side wall of the inner container. By this embodiment, an individual mechanical coupling of the second shell is also achieved, namely a double mechanical coupling with this guide device. By this objective embodiment, an always secure mechanical coupling of the second shell is achieved on this guide device and thus always in the respective extract positions always allows safe guiding and holding the second shell. Also, in particular always the horizontal position of the second shell is favored.

In particular, it can be provided that the third roller arrangement and the fourth roller arrangement are viewed in the depth direction of the second shell and are arranged between the first roller arrangement and the second roller arrangement in a series arrangement of the roller arrangements. In this way, a suitable distribution of the four roller arrangements relative to each other is made possible by way of the length of the second shell dimensioned in the depth direction. A corresponding in particular uniform distribution over this length of the second shell favors the above-mentioned advantages again substantially, as thus always in the most different extract positions always secure posture and leadership of the second shell both on the inner container and relative to the first shell and also on the first Shell is reached. Even with extensive placement of the second shell with food and a resulting corresponding weight of the second shell then the reliable and accurate movement guidance of the second shell is still possible.

In particular, it can be provided that the third roller arrangement is viewed in the depth direction of the second shell and, viewed in a row arrangement of the roller arrangements, is arranged between the first roller arrangement and the second roller arrangement. Additionally or instead, it can be provided that the third roller arrangement is arranged between the fourth roller arrangement and the second roller arrangement, viewed in the depth direction of the second shell and in the row arrangement of the roller arrangements. As a result of this configuration, in the depth direction of the second shell, a roller arrangement is formed, which is mechanically contacted or contactable with the first shell, and subsequently a roller arrangement is arranged, which can be coupled to the guide device on the side wall is coupled, in turn then in the depth direction thereafter a roller assembly is arranged, which is in turn coupled to the first shell or is coupled, and in turn thereafter viewed in the depth direction, a roller assembly is arranged, which in turn can be coupled to the guide device on the side wall or coupled. Thus, between the roller assemblies, which are coupled to the first shell or are coupled, designed in the depth direction sufficient sufficient distance, so that even in different extract positions or relative movements between the first shell and the second shell always a rich and mehrpunktueller seat of the second shell of the first shell is formed. The same then applies between the second shell and the guide device, so that here also in the most different extension positions of the second shell is also considered in the depth direction of the second shell mehrpunktuelle support of the second shell is formed on the guide device. The multipoint bearing is formed respectively by the roller assemblies and thus the rollers associated with the roller assemblies.

In an advantageous manner, it can be provided that the first roller arrangement is arranged in a front depth quarter of the depth or length of the second shell dimensioned in the depth direction of the second shell. Thereby, the first roller assembly is relatively far forward and thus formed very adjacent to a front end of the second shell. By such, very far forward drawn roller assembly is even when the two shells dimensioned in the depth direction with their front walls are maximally spaced apart, yet given a contact of the first roller assembly with the first shell.

In an advantageous embodiment, it may be provided that the second roller arrangement is arranged in a rear depth quarter of the depth or length of the second shell dimensioned in the depth direction of the second shell. By this configuration, a corresponding holding and guiding the second shell are made possible on the guide device, so that here again in particular maximally inserted position of the second shell and in particular maximally extended position of the second shell, this second roller assembly is always in contact with the guide device ,

Preferably, it can be provided that the third roller arrangement is arranged in a rear depth of the third in the depth direction of the second shell dimensioned depth or length of the second shell. Advantageously, it is also provided in this embodiment that the bottom or the bottom of the second shell is not formed flat over the entire dimensioned in the depth direction length, but that a rear portion of this floor is inclined upwards. The dimensions of this obliquely upward floor area are dimensioned so that the third roller assembly is not arranged in this inclined floor area, but is disposed immediately adjacent to this inclined floor area in the then adjoining flat bottom portion of the bottom of the second shell. In this context, it is then advantageously provided that the third roller arrangement is arranged in a rear depth quarter of this flat bottom area of the floor. In various extension positions is thus achieved that the first and the third roller assembly is contacted with the first shell, wherein a corresponding motion guide the second shell on the first shell over then in the depth direction considered at least two roller bearings is possible.

In particular, it can be provided that the fourth roller arrangement is arranged in a front depth half of the depth or the second shell dimensioned depth or length of the second shell. By this fourth roller assembly is therefore further displaced forward, can then be achieved in combination with the second roller assembly, namely that even in specific extension positions more bearings are formed with the guide device on the side wall and thus dimensioned in the depth direction of the second shell then in more diverse Regarding at least two roller bearings are formed with the guide device.

In a very advantageous embodiment, it may be provided that the four roller assemblies viewed in the depth direction of the second shell are distributed to one another such that in each position or state of the two shells to the inner container and / or in any position or state of the two Shells to each other always at least two of the four roller assemblies in contact with the individual coupling components, namely on the one hand the first shell and on the other hand, the guide device. In particular, in a fully extended state of the first shell and in a simultaneously fully inserted state of the second shell, the first roller assembly and the third roller assembly are arranged contactlessly to the first shell. The second roller assembly and the fourth roller assembly are then coupled to the guide device. It is thereby made possible that the two shells viewed in the depth direction of the household refrigerator can be moved as far as possible to each other. As a result, the first shell can be made accessible from above over the entire area of its feed opening. The second shell is then no longer in a position where they would cover this feed opening of the first shell in regions. Nevertheless, then just in this state, the second shell is securely held and guided, as still viewed in the depth direction Mehrpunktlagerung is formed. Tilting about an axis in the width direction of the household refrigerating appliance of the second shell is thus prevented even in this state. A secure horizontal displacement of the second shell is then also possible up to the inserted position or the inserted state he second shell.

On the other hand, it is then also possible that the first shell is arranged in the extended state and at the same time the second shell is arranged in the extended state. In these positions of the shells then the second shell is decoupled from the guide devices, so that the second and the fourth roller assembly are arranged contactlessly to the guide devices. There are then contacted the first roller assembly and the third roller assembly with the support webs of the first shell. In these positions, the second shell is then pulled out to the extent that its feed opening is substantially completely exposed, in particular is completely exposed, and is circumferentially accessible from above accordingly. And no longer covered by a ceiling wall of the inner container is partially covered.

There are also other positions or states of the shells relative to one another via these possibilities of adjusting these mentioned extreme positions of the shells with respect to one another in the domestic refrigerator, in which either at least one of the lower roller arrangements and thus at least the first or the third roller arrangement is in contact the first shell and then, when only one of these two roller assemblies is in contact with the first shell, but then all two further roller assemblies, namely the second roller assembly and the fourth roller assembly are in contact with the guide device. On the other hand, if a situation exists in which only the second or only the fourth roller assembly is in contact with the guide device, then both other roller assemblies, namely the first roller assembly and the third roller assembly, are in contact with the first shell. A mechanically stable motion control of the shells to the coupling components and relative to each other is given by. Also, the horizontal position of the shells to each other is then reliably maintained. In addition, individual roller bearings are not undesirable heavily stressed mechanically, so that unwanted force peaks can be avoided at individual roller bearings.

In addition, the ease of movement control over other bearings is increased by the additional design of a third roller assembly and / or a fourth roller assembly. Also, a then wear-poorer design is realized and running noise, in particular on the guide device are reduced. Especially with respect to embodiments with rails, for example telescopic extensions, the arrangement with the other roller arrangements, the above-mentioned advantages.

In an advantageous embodiment it can be provided that the first shell has a container part and on a top edge of the container part outwardly projecting support webs. The second shell is displaceable with at least one roller assembly on the upper sides of the support webs, wherein the support webs each have at least one upwardly projecting guide web on their upper sides. This guide bar is in particular integrally formed on a support web and thus formed integrated therein. Such upwardly projecting guide webs a lateral offset and thus a horizontal offset in the width direction between the two shells is prevented, especially when a relative movement between the two shells in the direction of displacement and thus in the depth direction of the household refrigerator is completed. This also additionally prevents the undesired lateral movement of the two shells relative to each other and the resulting possible dropping down of the second shell from the first shell.

Preferably, it can be provided that the first shell has a container part and at an upper edge of the container part outwardly projecting support webs, wherein the second shell with at least one roller assembly on top of the support webs is displaceable, wherein the support webs on the upper side facing away from the bottom in Cross-section groove-like or groove-shaped. A support web is thus formed in a sectional plane perpendicular to its dimensioned in the depth direction of the household refrigerator longitudinal extent than, for example, also reversed U. By such a shaping of a support web a secure placement on a separate extract is possible in a particularly advantageous manner. Such an extract is designed in particular as a heavy load extract. An extract is arranged on an inner side of a side wall of the inner container. This configuration of the support web quasi a touchdown from above and areawise encompassing a pull-out rail this statement allows, so that even here an undesirable slipping or lateral slipping of the support web is avoided to such an excerpt. A very precise positioning of a support web on such an excerpt is therefore possible. Even then, a jam-free or splay-free movement sequence when pulling out of the first shell from the receiving space is made possible by this configuration.

In particular, it can be provided that the support webs are placed with gutter areas on these said extracts or pull-out devices.

In particular, it can be provided that the second shell at least one on an underside Having downwardly projecting coupling element for coupling with the first shell when moving the first shell. This coupling element is thus in particular a kind of driver or a Ausziehmitnehmer. The automatic coupling between the two shells from a certain extension position of the first shell is then possible. By this configuration, it is then also achieved that when pulling out of the first shell, the second shell initially remains in its inserted end position and then from a certain intermediate extension position this coupling with the second shell on this at least one downwardly projecting coupling element occurs and then a motion coupling takes place between the two shells on the further Ausziehweg up to the extended end position. On the one hand, this has the advantage that, when the first shell is pulled out, the second shell is taken along from a certain withdrawal path, on the other hand both shells are accessible from above in the extended state, since they are positioned in the depth direction with a defined offset from one another.

In particular, it can be provided that this considered at least one downwardly projecting coupling element in the height direction of the household refrigerating appliance further down, as an upper edge is arranged on the rear wall of the first shell. In particular, therefore, in an advantageous embodiment, the coupling element in the height direction of the household refrigerating appliance comes into contact with the rear wall and the coupling then takes place between the coupling element and the rear wall of the first shell.

In a preferred embodiment it can be provided that the first shell has a container part and on a top edge of the container part outwardly projecting support webs, wherein the second shell with at least one of the roller assemblies on tops of the support bars is displaceable, and at least one support web on his associated top has a recess which is formed as a coupling element for coupling with the first roller assembly or the third roller assembly of the second shell during displacement of the first shell. This creates a very advantageous coupling principle when moving the shells. In a simple manner, when pulling out the first shell, it is first moved alone until, in particular, the foremost roll arrangement, which can be coupled to the support webs, rolls into the hollow at the second shell. Then the automatic coupling takes place and upon further withdrawal of the first shell, the second shell is then motion-coupled to the first shell on the further movement path to the outside. On the other hand, then by simply overcoming the rolling resistance for moving out of the rollers immersed in the troughs of the roller assembly manual decoupling by a user is possible. If, therefore, in a subsequent extended position of the first shell, which is reached after coupling, the second shell is moved alone, for example, pushed in or pulled out completely, this can be done by simple and user-friendly overcoming of this rolling resistance.

In particular, the height of the trough measured in the height direction of the domestic refrigerating appliance, that is to say the height of the deepest point of the trough, is such that in the coupled state of the roller arrangement with a trough, a bottom of the second shell is still spaced apart in the height direction from the support webs and thus also towards the first shell is. A grinding is thereby prevented, whereby a smooth movement and a low-wear movement is possible.

In particular, it can be provided that the guide device is an integrated in the side wall rib. The inner container is in particular a one-piece component made of plastic, which can be produced deep-drawn. In such a process, then this guide device can be tightened with the same.

The terms "top", "bottom", "front", "rear", "horizontal", "vertical", "depth direction", "width direction", "height direction", etc. are the intended use and intended arrangement of the device and at a given then before the device standing and looking in the direction of the device given positions and orientations.

Further features of the invention will become apparent from the claims, the figures and the description of the figures. The features and combinations of features mentioned above 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 indicated combination but also in other combinations without the scope of the invention leave. Thus, embodiments of the invention are to be regarded as encompassed and disclosed, which are not explicitly shown and explained in the figures, but which emerge and can be produced by separated combinations of features from the embodiments explained. Embodiments and combinations of features are also to be regarded as disclosed, which thus do not have all the features of an originally formulated independent claim. Moreover, embodiments and combinations of features, in particular by the embodiments set out above, are to be regarded as disclosed, which go beyond or deviate from the combinations of features set out in the back references of the claims.

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 refrigerator according to the invention;

2 a transparent vertical sectional view of the household refrigerator according to 1 in an inserted state of a shell assembly;

3 a representation according to 2 in a extended position of the shell assembly;

4 a front view of the household refrigerator in transparent presentation and without door;

5 an enlarged view of a partial section in 4 ;

6 a perspective view of another embodiment of a shell assembly;

7 a transparent vertical sectional view of the household refrigerator according to 1 in a first state of the shell arrangement according to 6 ;

8th a transparent vertical sectional view of the household refrigerator according to 1 in a second extended state of the shell assembly according to 6 ;

9 a front perspective view of a portion of the household refrigerator with the shells of the shell assembly; and

10 a perspective sectional view of a portion of the household refrigerator with the shells of the shell assembly in specific extract positions.

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

In 1 is a schematic representation of a household refrigerator 1 shown, which is designed for receiving and preserving food. The household refrigerator 1 may be a refrigerator or a freezer or a combination refrigerator-freezer. In the exemplary embodiment is the household refrigerator 1 a fridge-freezer combi appliance.

The household refrigerator 1 includes a housing 2 in which a first food storage room is formed, which is a cold room. This first reception room is through a door 3 lockable in 1 is shown in the closed state. The door 3 is pivotable about an axis oriented in the vertical direction (y-direction) and the door 3 is on the case 2 arranged.

The household refrigerator 1 also includes an inner container 4 which delimits with its walls a second reception room. The second receiving space is a freezer in the embodiment 5 ,

In the freezer room 5 In the embodiment, a plurality of trays are arranged, which are each designed to hold foods, such as food and drinks. In the freezer room 5 in the embodiment, two separate shells are arranged, which can be moved in the depth direction (z-direction). For the sake of clarity, only two shells of this shell arrangement will be used hereinafter 6 explained in more detail, wherein the shell assembly 6 can also have more than two shells. The shell arrangement 6 includes a first shell 7 , which represents in the exemplary embodiment, the lowest in the height direction shell. The cups of the cup arrangement 6 are arranged one above the other, in particular viewed in the vertical direction, and thus positioned in a quasi-stacked manner.

The first shell 7 is at a door 8th To close the freezer compartment 5 is formed, arranged and with this door 8th motion-coupled. The door 8th is only linearly displaceable and movable only in the depth direction, this via a corresponding Auszugslagerung the first shell 7 is reached. This means that the first shell 7 at opposite side walls in the width direction, each with extension devices, which are preferably heavy-duty drains, is coupled. These pull-out devices are on vertical side walls of the inner container 4 arranged.

In addition, the shell arrangement includes 6 a second bowl 9 , which also only by a linear movement in the depth direction of the household refrigerator 1 can be moved back and forth. The two bowls 7 and 9 are also mounted relative to each other movable.

Both bowls 7 and 9 are designed as tub-like container and accessible only from above.

The door 8th When closed, it forms an outer part of the domestic refrigerator 1 is and then preferably flush with the upper door 3 arranged, with the doors 3 and 8th can be moved independently and thus operated.

In 2 is in a schematic vertical sectional view (sectional plane is yz plane in 1 ) the household refrigerator 1 and is also shown transparently in the context. The door 3 is not shown here.

As in 2 it is recognizable, is the first shell 7 at one of the freezer room 5 facing inside 10 the door 8th attached and with the door 8th motion-coupled. In particular, it can be provided that the first shell 7 at a doorway 11 on this inside 10 is attached, is hung.

The first shell 7 points to an upper edge 12 on the opposite vertical side walls laterally outwardly projecting webs 13 and 14 on. At these support webs 13 . 14 is the first shell 7 in addition to said extension devices, on the opposite vertical side walls of the inner container 4 are arranged, mounted or hung from above.

This is in 3 an example of a pull-out device 27 (Left-side extension device) shown, which is designed in particular as a heavy load drawer. Right side is another extension device 15 ( 4 ) arranged.

In addition, it can be seen that the second shell 9 with a first roller arrangement 16 on the first shell 7 , in particular on the support webs 13 and 14 is slidably mounted. A roller assembly generally comprises at least two rollers, so that in the first roller assembly 16 a first roll on the landing stage 13 and a second roll on the landing stage 14 rolls. It is shown here then the role in the frontal view of the household refrigerator 1 is arranged on the left side and on the support web 14 can roll. This applies with respect to the representation of each left-side rollers below then also in the other figures, if the other role arrangements is mentioned.

In addition, the second shell includes 9 a second roller arrangement 17 , Whereas the first roller arrangement 16 with at least two rolls over a floor 18 the first shell 7 viewed in the vertical direction further extends down to this support pads 13 and 14 To be able to roll is the second roller arrangement 17 compared with offset upwards, so that a mechanical coupling of the second roller assembly 17 with a guide device 19 ( 4 ) and another guide device 20 ( 4 ) is reached. These guiding devices 19 and 20 are integral in the inner container 4 formed and are particularly attracted to the vertical side walls, inwardly projecting ribs on which the rollers of the second roller assembly 17 sit on top and roll along there. In 4 is shown to have two roles 23a ( 6 ) and 23b another roller arrangement 23 on these opposite guide devices 19 and 20 are set up. Correspondingly, rollers of the second roller assembly 17 in different extract positions of the second shell 9 on the guide devices 19 and 20 aural.

As can be seen, is the first roller assembly 16 in a front lower quarter of the second shell viewed in the depth direction 9 , In particular, this first roller arrangement 16 adjacent to a front wall 21 the second shell 9 educated.

The second roller arrangement 17 is in this depth direction of the second shell 9 considered in a rear depth quarter of the dimensioned in this depth direction length of the second shell 9 arranged.

In addition, the second shell includes 9 a third roller arrangement 22 which also has at least two opposing rollers. This third roller arrangement 22 is in turn corresponding to the first roller assembly 16 arranged so that the rollers for placement on the support bars 13 and 14 or on their upper sides, are arranged and thus the roles of the third roller assembly 22 in the depth direction opposite the ground 18 extend downwards.

As can be seen in the embodiment shown, the third roller arrangement 22 in the depth direction of the second shell 9 viewed, formed in a rear lower quarter. In particular, it can be seen in the embodiment that the ground 18 is not flat over its entire extension in the depth direction, but a front flat area 18a and an adjoining back, obliquely upwardly oriented second floor area 18b having. The third roller arrangement 22 is only in the flat ground area 18a but in particular in a depthwise measured rear depth quarter of the depthwise measured length of this flat bottom region 18a arranged.

As can be seen, the third roller arrangement is considered in this depth direction and in a series arrangement of the roller arrangements 22 between the first roller assembly 21 and the second roller assembly 17 arranged and but in each case in an offset to these two roller assemblies 16 and 17 arranged.

In addition, the second shell includes 9 in the embodiment also the fourth roller assembly 23 , The fourth roller arrangement 23 , the also in turn separately to the other role arrangements 16 . 17 and 22 is, in turn, includes at least two opposing roles 23a and 23b , Again, these are at least two roles 23a and 23b from above on the guide devices 19 and 20 as has already been explained accordingly.

As can also be seen, this fourth roller arrangement 23 in the depth direction and in the series arrangement of the roller assemblies considered in a front depth half of the second shell 9 arranged. The fourth roller arrangement 23 is between the first roller assembly 21 and the third roller assembly 22 arranged and also in the depth direction in turn offset to these two roller assemblies 21 and 23 arranged.

In addition, it can be seen that the fourth roller assembly 23 in a middle distance third of a depth dimensioned distance between the first roller assembly 16 and the third roller assembly 22 is trained.

As in the context in 2 Shown are the four roller assemblies 16 . 17 . 22 and 23 When viewed in the direction of the depth, in each case they are positioned alternately, that is, on a roller arrangement which is oriented downwards with rollers and on the first shell 7 is rollably mounted, followed by a roller assembly which is oriented upwards and with rollers on the guides 19 and 20 is stored rollable. In addition, the four roller assemblies 16 . 17 . 22 . 23 in the depth direction of the second shell 9 as regards their distance, they are distributed substantially evenly.

In 2 is a fully inserted state of the shell assembly 6 shown.

Will then when pulling out the door 8th and thus also the first shell 7 reached an intermediate pullout position, takes place in this intermediate pullout position, a coupling of the first shell 7 with the second shell 9 , This is on a bottom of the floor 18 and in particular the flat floor area 18a at least one coupling element, preferably two coupling elements 24 and 25 , designed to project downwards. The coupling elements 24 and 25 can also be referred to as Ausziehmitnehmerelemente. In the vertical direction, these coupling elements extend 24 and 25 continue down, as this is an upper edge 12 the first shell 7 takes place. This ensures that at this intermediate extraction position then a corresponding mechanical coupling occurs by the rear wall 26 the first shell 7 at the coupling elements 24 and 25 abuts and thus a corresponding coupling occurs, so that during the subsequent further extension of the door 8th with the then motion-coupled first shell 7 Also automatically a movement coupling of the second shell 9 with the first shell 7 occurs and this is then mitgegezogen motion coupled, in particular to the fully extended position of the first shell 7 ,

This is then according to 3 as well as in the schematic representation in 1 reached this fully extended final state. It can be seen then that both the first shell 7 as well as the second shell 9 already accessible from above. About this automatically reached further intermediate separation position of the second shell 9 in addition, by the movement coupling and pulling out the first shell 7 from this first intermediate extraction position to the end position of the first shell 7 is reached, the second shell can 9 then also be pulled out by a user further, in particular also be completely pulled out so that it is completely accessible from above over its entire upper opening. In the context, this can further push forward the second shell 9 , starting from the in 1 and 3 reached extended end position of the first shell 7 be completed, so in this context, the second shell 9 then again can be pulled out and in the context relative to the first shell 7 can be moved.

For all extract positions of the first shell 7 as well as in all extract positions of the second shell 9 is always achieved that at least two of the four roller assemblies 16 . 17 . 22 and 23 are in contact with the respectively provided coupling components.

In addition, in the illustration in 4 a transparent front view on the area of the household refrigerator 1 shows, in which the shell assembly 6 is arranged, the support webs 13 and 14 formed as turned U's. As a result, they can be particularly advantageous from above on the extension devices 15 and 27 be placed and exact position to the extension devices 15 and 27 being held.

In addition, it can be seen that on a top 13a as well as on a top 14a the support bars 13 respectively 14 upstanding guide bars 28 and 29 exhibit. As in particular in 5 , which is an enlarged view of a partial section of 4 shows, it can be seen, the arrangement of the guide webs 28 and 29 such that they are laterally directly to the roller assemblies 16 and 22 adjacent and thus in the width direction (x direction) occurring slippage of the second shell 9 to the first shell 7 prevention. In 4 are roles 16a and 16b of the first roller assembly 16 shown in this condition on the tops 13a and 14a seated.

In 6 is a perspective view of another embodiment of a household refrigerator 1 shown in which the shell assembly 6 is different from the previous versions. Here is instead of the coupling elements 24 and 25 , realized another coupling principle. It is here at the top 13a a depression 30 and / or at the top 14a a depression 31 educated. These channel-like depressions in the form of the depressions 30 and 31 are designed here as Ausziehmitnehmerelemente. They are in a middle third of the top 13a and / or the top 14a educated.

In 6 is to these wells 30 and 31 to recognize the first shell 7 shown in the fully extended state, whereas the second shell 9 is shown in the fully inserted state. In this position, as can be seen, the feed opening of the first shell 7 arranged completely free of cover from above and accessible over its entire surface area.

In this position are the first roller arrangement 16 and the third roller assembly 22 decoupled and thus contactless to the first shell 7 arranged and thus not in contact with the tops 13a and 14a , They are in the depth direction farther back or further inside, as the rear ends of the support webs 13 and 14 ,

Are both shells 7 and 9 especially in the freezer compartment 5 inserted state and is then starting from the first shell 7 pulled out so this is done without defined trained motion coupling with the second shell 9 ,

This means that the movement of the first shell 7 preferably without movement of the second shell 9 he follows. In particular, a non-shown retaining element may be formed, which is the second shell 9 then holds in its retracted state. This execution is also with the other remarks, as in particular above to the 2 to 5 were also possible. As a result, a possibly unwanted co-moving the second shell 9 prevents in which a movement of the second shell 9 however, at different speeds than the first shell 7 would take place and thus with simultaneous simultaneous movement of the shells 7 and 9 nevertheless a relative movement between the shells 7 and 9 would occur.

Will then in this extraction of the first shell 7 again reaches an intermediate extension position, in which then the rollers of the first roller assembly 16 into the wells 30 and 31 run in, it is done by a coupling between the shells 7 and 9 , Then then further pulling out the first shell 7 is the second shell 9 thus motion coupled and is automatically pulled out with, without any relative movement to the first shell 7 would occur. The then reached fully extended state of the first shell 7 is then in 7 shown.

Starting from this state, then the second shell 7 manually by a user relative to the first shell 7 be moved, for example, be pushed back into, as in 8th is shown. There is the in 6 already shown in perspective, fully inserted state of the second shell 9 now shown from the page in a transparent representation.

It could be starting from 7 but then completely pull out the second shell 9 take place, so that then, for example, the feed opening of the first shell 7 then covered and the loading opening of the second shell 9 However, it would be positioned completely free of cover and accessible from the top over the entire dimensions. In this position would then be the first roller assembly 16 and the third roller assembly 22 on the top 13a and 14a sitting, whereas the second roller assembly 17 and the fourth roller assembly 23 then contactless and thus decoupled from the guide devices 19 and 20 would be arranged.

In 9 is an enlarged perspective view of the household refrigerator 1 in the area of the freezer compartment 5 shown. The second shell 9 is partially shown. It's the role arrangements 16 . 22 and 23 to recognize.

In 10 is in a further enlarged perspective view of the household refrigerator 1 shown. In this illustration, the state of the positions of the shells 7 and 9 shown as he in 7 is shown. It can be seen here that the first roller arrangement 16 still on the top 14a of the landing stage 14 is arranged, whereas the last roller assembly 22 not on this top anymore 14a is positioned. The two upper roller assemblies 17 and 23 are at this position of the shells 7 and 9 positioned such that the forward fourth fourth roller assembly 23 non-contact with the guide device 20 is and thus has no mechanical rolling function more. The rear, in the depth direction, upper second roller assembly 17 however, it is on this guide device 20 still sitting and thus in mechanical contact with it. It is at this specific extension position of the shells 7 and 9 to each other and each to the inner container 4 two of the four roller assemblies still in contact with each individual, different rolling devices, namely the top 14a of the landing stage 14 and the trained as tightened rib guide device 20 on the inner container 4 , The same applies to the opposite roles of the four roller assemblies 16 . 17 . 22 and 23 the second shell 9 Looking at the front of the household refrigerator 1 then arranged on the right side.

LIST OF REFERENCE NUMBERS

1

 Household refrigerator

2

 casing

3

 door

4

 inner container

5

 freezer

6

 shell arrangement

7

 first shell

8th

 door

9

 second shell

10

 inside

11

 door angle

12

 upper edge

13

 support web

13a

 top

14

 support web

14a

 top

15

 extracting device

16

 first roller arrangement

16a

 role

16b

 role

17

 second roller arrangement

18

 ground

18a

 front level ground area

18b

 second floor area

19

 guiding device

20

 guiding device

21

 front wall

22

 third roller arrangement

23

 fourth roller arrangement

23a, 23b

 roll

24

 coupling element

25

 coupling element

26

 rear wall

27

 extracting device

28

 guide web

29

 guide web

30

 deepening

31

 deepening

y

 height direction

z

 depth direction

x

 width direction

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

• US 2015/0028735 A1 [0002]

Claims (15)

Household refrigeration appliance ( 1 ) with a receiving space ( 5 ) for food, which passes through walls of an inner container ( 4 ) and with a shell arrangement ( 6 ) located in the reception room ( 5 ) is slidably mounted, which a first shell ( 7 ), which is connected to a for closing the receiving space ( 5 ) trained door ( 8th ) of the household refrigerating appliance ( 1 ) and with the door ( 5 ) is motion coupled, and a second shell ( 9 ) which is relatively movable to the first shell ( 7 ), wherein the second shell ( 9 ) a first roller arrangement ( 16 ), with which the second shell ( 9 ) on the first shell ( 7 ) is displaceable, and the second shell ( 9 ) a second roller arrangement ( 17 ), with which the second shell ( 9 ) on a guide device ( 19 . 20 ) on a side wall of the inner container ( 4 ), characterized in that the second shell ( 9 ) a third roller arrangement ( 22 ), which in the depth direction (z) of the second shell ( 9 considered offset to the first roller assembly ( 16 ) and / or a fourth roller arrangement ( 23 ), which in the depth direction (z) of the second shell ( 9 considered offset to the second roller assembly ( 7 ) is arranged. Household refrigeration appliance ( 1 ) according to claim 1, characterized in that the third roller arrangement ( 22 ) on the second shell ( 9 ) is arranged, that the second shell ( 9 ) by means of the third roller arrangement ( 22 ) on the first shell ( 7 ) is displaceable. Household refrigeration appliance ( 1 ) according to claim 1 or 2, characterized in that the fourth roller arrangement ( 23 ) on the second shell ( 9 ) is arranged, that the second shell ( 9 ) on the guide device ( 19 . 20 ) on the side wall of the inner container ( 4 ) is guided. Household refrigeration appliance ( 1 ) according to one of the preceding claims, characterized in that the third roller arrangement ( 22 ) and the fourth roller arrangement ( 23 ) in the depth direction (z) of the second shell ( 9 ) considered between the first roller assembly ( 16 ) and the second roller assembly ( 17 ) are arranged. Household refrigeration appliance ( 1 ) according to one of the preceding claims, characterized in that the third roller arrangement ( 22 ) in the depth direction (z) of the second shell ( 9 ) considered between the first roller assembly ( 16 ) and the second roller assembly ( 17 ) and / or the third roller arrangement ( 22 ) in the depth direction (z) of the second shell ( 9 ) considered between the fourth roller assembly ( 23 ) and the second roller assembly ( 17 ) is arranged. Household refrigeration appliance ( 1 ) according to one of the preceding claims, characterized in that the first roller arrangement ( 16 ) in a front depth quarter of the depth direction (z) of the second shell ( 9 ) dimensioned depth of the second shell ( 9 ) is arranged. Household refrigeration appliance ( 1 ) according to one of the preceding claims, characterized in that the second roller arrangement ( 17 ) in a rear depth quarter of the depth direction (z) of the second shell ( 9 ) dimensioned depth of the second shell ( 9 ) is arranged. Household refrigeration appliance ( 1 ) according to one of the preceding claims, characterized in that the third roller arrangement ( 22 ) in a rear depth third of the depth direction (z) of the second shell ( 9 ) dimensioned depth of the second shell ( 9 ) is arranged. Household refrigeration appliance ( 1 ) according to one of the preceding claims, characterized in that the fourth roller arrangement ( 23 ) in a front half of the depth in the depth direction (z) of the second shell ( 9 ) dimensioned depth of the second shell ( 9 ) is arranged. Household refrigeration appliance ( 1 ) according to one of the preceding claims, characterized in that the four roller arrangements ( 16 . 17 . 22 . 23 ) in the depth direction (z) of the second shell ( 9 ) are arranged to each other so that in each position of the two shells ( 7 . 9 ) to the inner container ( 4 ) and / or in any position of the two shells ( 7 . 9 ) at least two roller arrangements ( 16 . 17 . 22 . 23 ) in contact with coupling components, in particular the first shell ( 7 ) and the guiding device ( 19 . 20 ), of the household refrigerating appliance ( 1 ) are, in particular in a fully extended state of the first shell ( 7 ) and in a simultaneously fully inserted state of the second shell ( 9 ) the first roller arrangement ( 16 ) and the third roller arrangement ( 22 ) contactlessly to the first shell ( 7 ) are arranged and the second roller assembly ( 17 ) and the fourth roller arrangement ( 23 ) with the guiding device ( 19 . 20 ) are coupled and / or in a fully extended state of the first shell ( 7 ) and in a simultaneously fully extended state of the second shell ( 9 ) the first roller arrangement ( 16 ) and the third roller arrangement ( 22 ) on the first shell ( 7 ), especially on topsides ( 13a . 14a ) of support webs ( 13 . 14 ) of the first shell ( 7 ), and the second roller arrangement ( 17 ) and the fourth roller arrangement ( 23 ) contactlessly with the guide device ( 19 . 20 ) are arranged. Household refrigeration appliance ( 1 ) according to one of the preceding claims, characterized that the first shell ( 7 ) a container part and at an upper edge ( 12 ) on the container part outwardly projecting support webs ( 13 . 14 ), wherein the second shell ( 9 ) with at least one of the role arrangements ( 16 . 22 ) on topsides ( 13a . 14a ) of the support webs ( 13 . 14 ) is displaceable, and the support webs ( 13 . 14 ) on their tops ( 13a . 14a ) each have at least one upwardly projecting guide web ( 28 . 29 ) exhibit. Household refrigeration appliance ( 1 ) according to one of the preceding claims, characterized in that the first shell ( 7 ) a container part and at an upper edge ( 12 ) on the container part outwardly projecting support webs ( 13 . 14 ), wherein the second shell ( 9 ) with at least one of the role arrangements ( 16 . 22 ) on topsides ( 13a . 14a ) of the support webs ( 13 . 14 ) is displaceable, and the support webs ( 13 . 14 ) at the top ( 13a . 14a ) facing away from the bottom in cross section are formed like a channel, in particular the support webs ( 13 . 14 ) with their channel areas on extension devices ( 15 . 27 ) are attached. Household refrigeration appliance ( 1 ) according to one of the preceding claims, characterized in that the second shell ( 9 ) on an underside of a floor ( 18 ) at least one downwardly projecting coupling element ( 24 . 25 ) for coupling with the first shell ( 7 ) when moving the first shell ( 7 ), in particular the coupling element ( 24 . 25 ) in the height direction of the household refrigerating appliance ( 1 ) is further downwardly projecting than an upper edge ( 12 ) a back wall ( 26 ) of the first shell ( 7 ), so that when moving the first shell ( 7 ) a coupling between the coupling element ( 24 . 25 ) and the back wall ( 26 ) of the first shell ( 7 ) is trained. Household refrigeration appliance ( 1 ) according to one of the preceding claims, characterized in that the first shell ( 7 ) a container part and at an upper edge ( 12 ) on the container part outwardly projecting support webs ( 13 . 14 ), wherein the second shell ( 9 ) with at least one of the role arrangements ( 16 . 22 ) on topsides ( 13a . 14a ) of the support webs ( 13 . 14 ) is displaceable, and at least one support web ( 13 . 14 ) on its associated upper side ( 13a . 14a ) a recess ( 30 . 31 ), which serves as a coupling element for coupling with the first roller arrangement ( 16 ) of the second shell ( 9 ) when moving the first shell ( 7 ) is trained. Household refrigeration appliance ( 1 ) according to one of the preceding claims, characterized in that the guiding device ( 19 . 20 ) one in the side wall of the inner container ( 4 ) integrated rib is.

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