CN117203479A - Household refrigeration appliance with tray-specific track and method for assembling the track - Google Patents

Abstract

One aspect of the invention relates to a domestic refrigeration device (1) having: an inner container (4) having walls (6, 7, 8, 9, 10); a receiving space (5) for food, which is delimited by walls (6, 7, 8, 9, 10) of the inner container (4); at least one rail (13, 14) configured for receiving a food receiving container (12) independent of the rail, the rail (13, 14) being held on a wall (6, 7, 8, 9, 10) of the inner container (4) by means of at least one snap connection (39), wherein the rail (13, 14) has, in addition to the snap connection (39), at least one positioning element (26) which, in the final assembled state of the rail (13, 14), butts in a pretensioned manner against a support (37) of the wall (6, 7, 8, 9, 10), thereby forming a pretensioned connection (38). One aspect also relates to an assembly method.

Description

Household refrigeration appliance with tray-specific track and method for assembling the track

Technical Field

One aspect of the present invention relates to a household refrigeration appliance having an inner container. The inner container includes a wall. The domestic refrigeration device further comprises at least one receiving space for the food product. The receiving space is defined by a wall of the inner container. Furthermore, the domestic refrigeration appliance has at least one rail which is provided or respectively designed to receive the food receiving container independently of the rail. The track is held to the wall of the inner container by at least one snap-fit connection. Another aspect of the invention relates to a method of arranging a track on a wall of an inner container of a domestic refrigeration apparatus.

Background

It is known to mount separate rails to the wall of an inner container. Such rails are typically arranged on the vertical side walls of the inner container. Which are provided as specified for enabling the food-receiving containers to be placed thereon and moved relative to them. For example, the food receiving container can be pushed into the receiving space or pulled out of the receiving space on the rail in the depth direction of the domestic refrigeration apparatus. For example, such a food receiving container may have a tray.

Such a solution is disclosed, for example, by EP3155337B 1. However, the fastening of the rail is affected. On the one hand, a relatively complex assembly scheme is required, and on the other hand, a fixed-position arrangement of the rail in the final assembled state can only be achieved to a limited extent.

Disclosure of Invention

The object of the present invention is to provide a domestic refrigeration device and a method in which the rail for supporting the food receiving container can be better arranged on the wall of the inner container.

The object is achieved by a domestic refrigeration device and a method according to the preferred embodiments.

One aspect of the present invention relates to a household refrigeration appliance. Such a domestic refrigeration appliance comprises an inner container. The inner container includes a wall. In addition, the domestic refrigeration device comprises at least one receiving space for the food product. The receiving space is defined by a wall of the inner container. The domestic refrigeration device further comprises at least one separate rail. The track is configured to receive the food-receiving receptacle independently of the track. The track independent of the inner container is held to the wall of the inner container by at least one snap connection. In addition to the at least one snap connection, the rail is also provided with at least one positioning element. In the final assembled state of the rail, at least one positioning element of the rail rests in a pretensioned manner on the support of the wall. Thereby forming a preloaded joint. In the final assembled state, the rail is therefore arranged on the wall with such a pretensioned connection in addition to the snap connection. Thereby, a fixed arrangement of the rail on the wall is achieved. In this way, undesired positional tolerances or swaying of the rail in the final assembled state can be avoided. Last but not least, the retention of the food receiving receptacle on the rail according to the defined arrangement is thereby also improved. Whereby the relative movement of the food receiving receptacle with respect to the rail is also improved. Thereby, the movement of the food receiving container on the rail is prevented from jamming and is smoother. Last but not least, by fixedly mounting the rail position on the wall, the mechanical stability can also be improved. Also the absorption of forces by the rail will thus be improved.

In one embodiment, the pretension force generated by the pretension connection acts in the depth direction of the track. In particular, the longitudinal axis of the rail is oriented in the depth direction of the domestic refrigeration apparatus. By this specific orientation of the pretension and the correspondingly generated pretension, the orientation in the depth direction can be set and maintained more precisely. Thereby, positioning that may have an undesired gap in the depth direction is avoided. Hereby a particularly fixed arrangement of the position of the rail is achieved and the rail does not move together in the depth direction when the food receiving container is moved in the depth direction.

Furthermore, the assembly solution is simplified by this design of the rail and its various fastening types. In particular, in this case, a pretensioned connection can be used as the first connection to be produced in the assembly scheme in order to subsequently establish and produce further connections, in particular at least one snap connection.

In one embodiment, the positioning element is oriented laterally with respect to the longitudinal axis of the rail. In one embodiment, the positioning element is a free overhanging tab. This means that the main extension direction of the positioning element does not extend in the direction of the longitudinal axis of the rail. Instead, it is oriented laterally prominently. Thereby, the positioning element is more easily fixed to the wall of the inner container. In particular, a simple assembly solution can thus also be achieved. As a result of this exposed orientation of the positioning element, it is possible to simply insert it into the receptacle on the wall, so that a corresponding pre-coupling can already be achieved here. This can also be achieved without setting the pretensioning connection in its final functional position. The design of the free overhanging piece makes the penetrating principle particularly simple and easy and user-friendly. A targeted generation of the preassembly position is thereby also achieved.

In one embodiment, the positioning element is arranged on one end of the track. In particular, the end is the rear end of the track, seen in the depth direction. This is particularly advantageous for achieving the above-described advantages. As in this way the positioning element can be simply inserted into the receptacle on the wall. Thus, other assembly steps can be designed more simply for the user. Furthermore, a directional pretension can be defined and generated in a desired manner. The pretension then acts to a particular extent forward from the depth direction, so that the rail is pretensioned horizontally forward in the depth direction.

In one embodiment, the positioning element is plate-shaped in shape. Such a plate shape is particularly vertically oriented. This means that the dimensions of the positioning element in the height direction and in the width direction of the domestic refrigeration apparatus are greater, in particular much greater, than in the depth direction. The above advantages are thus further improved. In particular, by means of this design and orientation, a relatively large-area abutment of the positioning element on the support can be achieved. Thus, a high mechanical stability of the pretensioned connection can be achieved and a corresponding pretension or pretension force can be generated in a very directional manner. Last but not least, a simple penetration and coupling with the support can also be achieved by this design. Thus, a fixed-position arrangement and maintenance of this fixed-position state can also be achieved in an improved manner.

In one embodiment, the positioning element is arranged obliquely in the basic position, viewed in a horizontal plane, at an angle of between 45 ° and less than 90 °, in particular between 45 ° and 70 °, with respect to the longitudinal axis of the rail. This is another very advantageous embodiment. On the one hand, the insertion and support of the rail can thereby be made particularly user-friendly. In particular, this advantage is achieved even when the rail is inclined in the preassembled state with the longitudinal axis in a horizontal plane with respect to the depth direction of the domestic refrigeration apparatus. Last but not least, a pretensioned connection can also be achieved in a particularly advantageous manner by means of this design. This is because the desired pretension can also be set in a very well defined and oriented manner. In particular, the positioning element is also a freely overhanging elastic sheet in this respect. In this way, a particularly effective pretensioned connection can be achieved.

In one embodiment, the snap connection is only arranged partially at the first third of the track length. In this way, a specific mechanical connection can be provided locally in the front region. Thus, there is no longer a need to form snap connections in a multiplicity and at different locations. This also simplifies the assembly scheme. The functional connection of the snap connection and the pretensioning connection and the partial position thereof on the rail can improve the assembly and the retention of the position fixing. The snap connection is no longer formed at individual points over the entire track length, which may have to be snapped in a time-consuming and seizing manner during the assembly process. Instead, the geometry of the rail is simplified by the new concepts set forth and the handling during assembly is also improved.

In one embodiment, the track has a hollow cylinder. At least one clamping element is integrally formed on the cylinder wall of the hollow cylinder. In particular, the snap-in element has elasticity in a direction perpendicular to the longitudinal axis of the hollow cylinder. By designing the rail with such a hollow cylinder, on the one hand, a directional coupling of the rail with a corresponding receptacle on the wall can be achieved. In this way, a certain pre-centering and pre-guiding can also be performed at this local point when the rail is mounted on the wall. On the other hand, this hollow cylinder can further function as a bearing snap element. Thus, a very targeted latching of the latching element in the receptacle on the wall can also be achieved. Last but not least, by means of the dimensions of such a hollow cylinder it is possible to produce a mechanically stable component, on the other hand, the weight is reduced due to the hollow structure. This is advantageous in particular for achieving a spring action of the at least one latching element.

In one embodiment, the longitudinal axis of the hollow cylinder is perpendicular to the longitudinal axis of the rail. This improves the geometric design of the rail on the one hand and the assembly solution on the other hand. In particular, when the rail is mounted, both longitudinal axes are oriented in a horizontal plane.

In one embodiment, at least two snap elements are configured in the cylinder wall. They are in particular individual snap-in elements. In one embodiment, the snap elements are offset from each other by 180 ° in a circumferential direction about the longitudinal axis of the hollow cylinder. In particular, the direction in which the snap-in element can spring is the direction of the longitudinal axis of the rail. This also simplifies the snap-in solution. In particular, the stationary holding of the rail is thus advantageously supported. In particular, the fixed holding of the rail on the wall can be supported in a further improved manner if two such snap-on elements are provided, which spring correspondingly in the direction of the longitudinal axis of the rail.

In one embodiment, the clamping elements are arranged with their free ends at different axial positions in the direction of the longitudinal axis of the hollow cylinder. This may further improve the retention of the positional fixation. Thus, assembly tolerances and manufacturing tolerances can be better compensated for.

In one embodiment, the track has a back piece disposed on the inner container wall. The rear part has a blind-hole recess. In particular, the back piece is a wall-independent component. In the assembled state of the rail arrangement on the wall, the hollow cylinder is inserted into this blind-hole-like recess. In particular, the latching elements of the rail then engage with mating latching elements formed on the wall of the recess. The recess wall thus has in particular an integrated mating snap element. It is clamped with the clamping element of the track.

Thus, the snap connection is also quasi-protected or hidden. This is because the hollow cylinder is sunk into the recess. This also forms a guide device during assembly.

In one embodiment, the track has at least one height adjustment element. With this height adjustment element, the height position of the rail can be adjusted during the assembly process. In particular, this also ensures that an automatic adjustment of the desired height position is made during the assembly process. Thus, automatic adjustment or adjustment of the correct height position of the rail relative to the wall can already be achieved by the assembly itself. The relevant height direction is the height direction of the domestic refrigeration apparatus. This also simplifies the assembly scheme and improves the accurate orientation and positioning of the rails. In particular, this also improves the fixed positioning of the rail on the wall.

In one embodiment, the height adjustment element has a plate-like piece. In one embodiment, the plate-like sheet protrudes from the elongate base of the rail transversely to the longitudinal axis of the rail, in particular freely overhanging. The height adjustment element cooperates with a receptacle formed on the inner container wall. The height adjustment element is coupled with an adjustment wall in the receiving portion to adjust the height position of the rail relative to the receiving portion. In particular, this height position can also be fixedly maintained. By means of this design, a simple and compact solution is achieved in terms of components, by means of which the precise height position of the rail can be better adjusted. This can be achieved automatically, in particular when the rail is mounted.

In one embodiment, the track has a plurality of independent height adjustment elements on a rear end in a direction along its longitudinal axis. These height-adjusting elements are arranged in particular parallel to one another and at a distance from one another. This may further improve the adjustment of the height position. In particular, a more precise height adjustment can be achieved. This also makes it easier to compensate for manufacturing tolerances of the components.

Another aspect of the invention relates to a household refrigeration appliance. It comprises at least one food receiving container designed according to the above aspects or advantageous embodiments thereof. The domestic refrigeration appliance may be a refrigerator or freezer or a combination refrigerator-freezer. The domestic refrigeration appliance may comprise a housing. The housing has an outer housing. An inner container independent of the outer housing is accommodated in the outer housing. The inner container defines with its walls at least one receiving space for a domestic refrigeration appliance. The receiving space may be a refrigerating space or a freezing space. For this purpose, the food receiving container is a separate component, which can be arranged in this receiving space. The food receiving container may also be removed from this receiving space as a whole. Additionally or alternatively, only the tray of the food receiving container may be removed. In addition, the domestic refrigeration appliance can be pulled out and pushed in the depth direction.

Another aspect of the invention relates to a method of mounting a rail on a wall of an inner container of a domestic refrigeration appliance. The domestic refrigeration device may be formed in accordance with the above aspects or advantageous embodiments thereof.

The method comprises in particular the following steps:

inserting the positioning element into the receptacle on the inner container wall;

pressing the positioning element against the support, thereby pre-stressing the positioning element in the depth direction of the domestic refrigeration device;

swinging the rail towards the wall at an end opposite to the end of the pretensioned connection formed by the positioning element and the support;

the snap connection snaps automatically when the rail swings into the final position.

Hereby a simple assembly solution is achieved. The rail may be fixedly secured to the wall.

Embodiments of the domestic refrigeration device can be regarded as embodiments of the method, wherein the components can be individually or in an operatively connected manner carry out the method steps in the assembly process.

The terms "upper", "lower", "front", "rear", "horizontal", "vertical", "depth", "width", "height" describe the position and orientation which result when the container or the appliance is used and arranged in a defined manner.

Further features of the invention result from the claims, the drawings and the description of the figures. The features and feature combinations mentioned above in the description and the features and feature combinations mentioned below in the description of the figures and/or individually shown in the figures can be used not only in the respectively described combinations but also in different combinations or individually without leaving the framework of the invention. Accordingly, such embodiments of the invention may also be considered to be encompassed and disclosed: the embodiments are not explicitly shown and explained in the figures, but are known and can result from separate feature combinations from the explained embodiments. Such embodiments and combinations of features may also be considered as disclosed, which embodiments and combinations of features therefore do not have all of the features of the independent claims as originally presented.

Drawings

Embodiments of the present invention are explained in more detail below with reference to the schematic drawings. In the accompanying drawings:

FIG. 1 shows a schematic diagram of one embodiment of a household refrigeration appliance of the present invention;

FIG. 2 shows a perspective view of one embodiment of a track of the present invention;

fig. 3 shows a front view of a partial region of the domestic refrigeration device according to fig. 1, wherein the rail according to fig. 2 is arranged in the final position on a vertical side wall of an inner container of the domestic refrigeration device;

FIG. 4 shows a top view of the assembly according to FIG. 3;

FIG. 5 shows a horizontal cross-section of the assembly according to FIG. 3 along section line V-V;

fig. 6 shows an enlarged view of a partial region in fig. 5;

fig. 7 shows another horizontal section of the assembly according to fig. 3, which differs from the section of fig. 5;

fig. 8 shows an enlarged view of a partial region in fig. 7; and

fig. 9 shows a partial region of fig. 8, but in a vertical section, the direction of the section being perpendicular to the plane of the drawing of fig. 8.

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

Detailed Description

In fig. 1 a schematic diagram of an embodiment of a domestic refrigeration device 1 is shown. The domestic refrigeration device 1 can be used for storing and preserving food products. The domestic refrigeration appliance 1 may be a refrigerator or ice bin.

The domestic refrigeration device 1 has a housing 2. The housing 2 has an outer housing 3. The outer housing 3 may be made of metal, for example. For example, it may be made of a metal plate.

Furthermore, the domestic refrigeration device 1 has an inner container 4. The inner container 4 is independent of the outer housing 3. The inner container 4 is received in the outer housing 3. The inner container 4 can in particular be made of plastic. The wall of the inner container 4 defines a receiving space 5 of the domestic refrigeration device 1. The receiving space 5 is provided as intended for receiving food products. The receiving space 5 may be, for example, a freezing chamber or a refrigerating chamber.

The inner container 4 has a top wall 6, a bottom wall 7, a rear wall 8, and vertical side walls 9 and 10 as walls. Furthermore, the domestic refrigeration appliance 1 has a door 11. The door 11 is shown here in an open state. Which is movably arranged on the housing 2. The door 11 serves to close the receiving space 5 from the front side.

Further, one embodiment of a food receiving container 12 is shown in fig. 1. It may be a tray or at least have a tray. A food receiving container 12 is arranged in the receiving space 5. In this regard, the food receiving receptacle is movably positioned in the receiving space. In particular, it can be pulled out or pushed in the depth direction (z direction) of the domestic refrigeration apparatus 1.

For this purpose, in the present embodiment a first rail 13 and an opposite second rail 14 are provided. The two rails 13 and 14 in this embodiment are arranged on the inner sides of the opposite vertical side walls 9 and 10. The rails 13 and 14 are separate parts from the side walls 9 and 10.

In one embodiment, these tracks are arranged on the side walls 9 and 10 in a non-destructively detachable manner. These rails 13 and 14 are provided as prescribed for receiving the food receiving receptacle 12. Thus, the food receiving container 12 is supported on these rails 13 and 14. The rails 13 and 14 are arranged fixedly in position on the vertical side walls 9 and 10.

A perspective view of one embodiment of the track 14 is shown in fig. 2. The rail 14 is preferably constructed in one piece. In particular, the track 14 is made of plastic. For example, it may be an injection molded part. The rail 13 is in particular formed in correspondence with the rail 14.

The track 14 has a longitudinal axis a. In the assembled state of the rail 14, the longitudinal axis is oriented in the depth direction on the vertical side wall 10.

The track 14 has a base 15. The base 15 is configured as an elongated member. In this embodiment, the base is hollow. The track 14 has a first end 16. The first end 16 is here a front end. The rail 14 has a second end 17, seen in the direction of the longitudinal axis a. The second end is in particular the rear end 17. In this embodiment, the base 15 preferably has a diagonal strut 18. For clarity, reference numerals are provided only to some of the diagonal braces 18. These braces serve to stiffen the hollow base 15 here.

These braces 18 are preferably C-shaped plate members.

The base 15 has an upper wall 19 in the height direction (Y direction) of the domestic refrigeration apparatus 1. The upper wall 19 has a front surface area 19a. The front surface area is in particular configured as a strip. In particular, the front surface region is formed flat. Thus, the surface area 19a extends in a horizontal plane. The horizontal plane is determined by the width direction (x direction) and the depth direction (z direction) of the household refrigeration appliance 1. The second surface region 19b is formed immediately behind. The second surface area is lowered in the height direction (y direction) compared to the surface area 19a. The rear surface region 19b is also formed in a curved manner. In this regard, the rear surface region forms a concave planar strip. The rear surface area ends at a rear end 17. In one embodiment, surface areas 19a and/or 19b are support surfaces for food receiving container 12.

Furthermore, a stop element 20 is integrated into the front end 16 of the rail 14. The stop element is raised upward in the height direction compared to the immediately rear surface region 19a. In particular, a pull-out stop for the food receiving container 12 is also formed by the stop element 20. In addition, the rail 14 has a roof 21. The roof is offset upwards in the height direction with respect to the upper wall 19 of the rail 14. Whereby guiding means are also formed between the wall 19 and the roof 21. The food receiving receptacle 12 can extend into this intermediate space via guide elements. Thereby, a corresponding guidance of the food-holding container 12 on the rail 14 is enabled.

As shown, the base 15 is open on the side facing the vertical side wall 10, to which the rail 14 is fastened. On the side facing away from the vertical side wall 10, the base 15 is formed in a closed manner.

The rail 14 has a hollow cylinder 22. The hollow cylinder 22 is molded onto the base 15. The hollow cylinder 22 has a longitudinal axis B. The longitudinal axis is oriented horizontally here. Which is perpendicular to said longitudinal axis a. In the assembled state of the rail 14, the longitudinal axis B is oriented in the width direction (X direction) of the domestic refrigeration apparatus 1. The hollow cylinder 22 has a cylinder wall 23. A locking element 24 is integrally formed in the cylinder wall 23. In the present embodiment, the second engaging element 25 is integrally formed in the cylinder wall 23. The snap elements 24 and 25 are formed as spring plates. Here, they are offset by 180 ° from one another in the direction of rotation about the longitudinal axis a. These snap elements 24 and 25 are positioned such that they spring in the direction of the longitudinal axis a. It can be provided that the snap-on elements 24 and 25 are arranged at the same axial position, seen in the direction of the longitudinal axis B. In one embodiment, it is also possible for the two latching elements 24 and 25 to be arranged at different axial positions in the direction of the longitudinal axis B. This relates in particular to the free ends 24a and 25a of the snap elements 24 and 25.

Furthermore, in one embodiment, it is also possible for mating clamping elements which are arranged outside the rail 14 and which are clamped with the clamping elements 24 and/or 25 to be arranged at different axial positions in the direction of the longitudinal axis B. By this design, manufacturing tolerances of the components can be compensated for and a fixed arrangement of the rail 14 on the vertical side wall 10 can be supported by a precisely fitting engagement of one of the engagement elements 24 and/or 25 with the mating engagement element.

In addition, as shown in fig. 2, the track 14 also includes at least one positioning element 26. In the final assembled state of the rail 14, the positioning element 26 rests against a support of the vertical side wall 10 and is preloaded against the support as required. Thus, a pretensioning device of the domestic refrigeration appliance 1 is formed between the positioning element 26 and the support. A pretensioned connection is produced by these components.

As shown in fig. 2, a positioning element 26 is configured on the rear end 17. The positioning element 26 here forms a free overhanging tab. The positioning element 26 may also be referred to as a tongue. The positioning element 26 has a plate shape. The positioning element is oriented vertically. In the basic position of the positioning element 26, as shown in fig. 2, the positioning element 26 is inclined at an angle of between 45 ° and less than 90 °, in particular between 45 ° and 70 °, with respect to the longitudinal axis a, seen in a horizontal plane (x-z plane). In particular, the positioning element is inclined in such a way that it is inclined away from the front end 16 of the rail 14 or away from the front end of the rail. The positioning element 26 is configured to be resilient.

In one embodiment, the track 14 also has at least one height adjustment element 27. With this height adjustment element 27, the height position of the rail 14 relative to the side wall 10 can be adjusted, in particular automatically, as required during assembly. The height adjusting element 27 is designed in the form of a plate. It protrudes freely overhanging from the base 15 of the rail 14 transversely to the longitudinal axis a of the rail 14. In the present exemplary embodiment, a plurality of height adjustment elements are formed here. For example, more than two height adjustment elements, such as three height adjustment elements 27, 28 and 29, may be provided. These height-adjusting elements are oriented here as parallel plate-like sheets. Seen in the direction of the longitudinal axis a, they are oriented in rows and spaced apart from one another. It can be seen that these height-adjusting elements 27 to 29 are embodied in the rear end region of the rail 14. They are oriented more forward than the positioning elements 26. In particular, the plate-like orientations are configured such that the respective plate planes are oriented perpendicular to the longitudinal axis a.

In fig. 3, a partial region of the domestic refrigeration device 1 is shown from a front perspective. Here, a partial region of the track 14 is shown. In this regard, the track 14 is shown in its final position on the side wall 10.

It can be seen that a back piece 30 is arranged on the side wall 10. In this case, the rear part 30 is arranged in an intermediate space 31 (fig. 1) between the outer housing 2 and the inner container 4. An insulating material, such as insulating foam, is typically placed in this intermediate space 31. The back piece 30 is thus surrounded by such a heat insulating material, among other things.

In one embodiment, the rear piece 30 has a recess 32 resembling a blind hole. The hollow cylinder 22 is immersed in this recess 32. The recess wall 33 of the recess 32 has the previously mentioned mating snap elements 34 and 35 (fig. 6). The snap elements 24 and 25 are snapped onto these mating snap elements, in particular with free ends 24a and 25a (fig. 6). As shown, the hollow cylinder 22 is configured at the first third of the length of the rail 14, seen in the direction of the longitudinal axis a. In particular, the corresponding snap connection is provided only in the first third of the length. In particular, the rail 14 is not provided with any other snap connection.

In fig. 4a top view of the assembly according to fig. 3 is shown. It can also be seen here that the side wall 10 has a receiving portion 36. The receiving portion 36 may also be designed as a slot resembling a blind hole. It may also be a back-piece. However, it can also be formed in one piece and thus integrally with the vertical side wall 10. In the final assembled state of the rail 14, the positioning element 26 is immersed in the receptacle 36. In particular, it is preferred that the existing height adjustment elements 27 to 29 also sink into them.

In this case, the receiving portion 36 is shown transparently in fig. 4. Thus, the position of the positioning element 26 on the support 37 can be seen. The support 37 is a wall region of the receiving portion 36. The support 37 is correspondingly oriented obliquely in order to be able to bring the positioning element 26 as large as possible against it. Also, since the receiving portion 36 is shown transparently, three height adjustment elements 27 to 29, which are shown here by way of example, can be seen in fig. 4.

In this case, a horizontal section through the assembly according to fig. 3 and 4 is shown in fig. 5. In this regard, a cross-sectional view along the V-V section line in FIG. 3 is shown. By the arrangement of the positioning element 26 and the support 37, a pretensioned connection 38 is formed.

Fig. 6 shows an enlarged view of the sectional view in fig. 5. In this regard, the front region of the assembly is shown enlarged.

A cross-sectional view of the track 14 is shown in fig. 7. Shown here is a horizontal cross-sectional view. The figure is a stepwise cross-section in the height direction, wherein in the front region of the assembly according to fig. 3 the cross-section is drawn above the stop element 20, and in the rear region the cross-section is drawn below the cross-section line V-V in fig. 3, i.e. through the receiving portion 36. The positioning element 26, the support 37 and here the plurality of height-adjusting elements 27 to 29 are therefore also shown in a sectional view in fig. 7.

In this case, the rear part of fig. 7 is shown enlarged in fig. 8. The pretensioned arrangement of the positioning element 26 on the support 37 can be seen. Thereby, a defined pretension is formed in the direction of the longitudinal axis a. In particular, a pretension is also produced in both spatial directions for tolerance compensation in the length and thus in the direction of the longitudinal axis a and in the area of abutment with the wall region formed by the support 37.

In contrast, fig. 9 shows the rear end according to fig. 8 in a section plane perpendicular to fig. 8. Thus, fig. 9 shows a vertical plane as a sectional plane. It is determined by the depth direction and the height direction. In particular, here, in one embodiment, the truss-like structure of the diagonal braces 18 can also be seen. It can also be seen from fig. 9 that by means of the height design of the height adjustment elements 27 to 29, an exact height position of the rail 14, in particular with respect to the recess or receptacle 36, can also be established. This also makes it possible to achieve a very orderly, horizontal and fixed-position arrangement of the rails 14.

In assembling the rail 14, the positioning element 26 is first inserted into the receptacle 36. The positioning element 26 then rests on the support 27. In this respect, the longitudinal axis a of the rail 14 is then oriented obliquely to the depth direction of the domestic refrigeration apparatus 1. This means that the front end 16 of the track 14 is still positioned significantly away from the vertical side wall 10. By means of the preassembly position thus formed, the pivoting of the rail 14 towards the vertical side wall 10 is then carried out in a further assembly process, in particular on the front end 16. The coupling between the positioning element 26 and the support 37 also serves here as a pivot bearing. The snap connection 39 between the snap element 24 and/or 25 and the counterpart snap element 34 and/or 35 is then also automatically achieved by the pivoting of the front end. By the special design of the pretensioning connection 38, a defined pretensioning is then automatically achieved also in the depth direction and a pretensioning force is generated in the axial direction in order to support the positioning of the rail 14 in this respect.

The adjustment walls 40 and 41 can also be seen in fig. 9. These adjusting walls are in particular the upper and lower boundary walls of the receptacle 36. At least one height adjustment element 27, 28 and 29 can be in contact with at least one of these adjustment walls 40 and 41 with an upper edge and/or a lower edge. The height position of the rail 14 can thus be precisely adjusted, in particular at least at the rear end 17.

List of reference numerals

1 household refrigeration equipment

2 shell body

3 outer casing

4 inner container

5 receiving space

6 roof wall

7 bottom wall

8 rear wall

9 vertical side wall

10 vertical sidewall

11 door

12. Food receiving container

13. Rail track

14. Rail track

15. Base part

16. First end

17. Second end

18. Diagonal bracing

19. Top wall

19a front surface area

19b rear surface area

20. Stop element

21. Top

22. Hollow cylinder

23. Cylinder wall

24. Clamping element

24a free end

25. Clamping element

25a free end

26. Positioning element

27. Height adjusting element

28. Height adjusting element

29. Height adjusting element

30. Rear-mounted part

31. Intermediate space

32. Concave part

33. Recess wall

34. Pairing clamping element

35. Pairing clamping element

36. Receiving part

37. Support member

38. Pretensioned connection

39. Card connection

40. Adjusting wall

41. Adjusting wall

In the x width direction

y-height direction

z depth direction

Axis of ordinates

And the vertical axis B.

Claims (15)

1. A domestic refrigeration device (1) having: an inner container (4) having walls (6, 7, 8, 9, 10); a receiving space (5) for the food product, which receiving space is delimited by walls (6, 7, 8, 9, 10) of the inner container (4); and at least one rail (13, 14) which is designed to receive a food receiving container (12) independent of the rail, wherein the rail (13, 14) is held on the wall (6, 7, 8, 9, 10) of the inner container (4) by means of at least one snap connection (39), characterized in that the rail (13, 14) has, in addition to the snap connection (39), at least one positioning element (26) which, in the final assembled state of the rail (13, 14), butts against a support (37) of the wall (6, 7, 8, 9, 10) in a pretensioned manner, thereby forming a pretensioned connection (38).

2. Household refrigeration appliance (1) according to claim 1, wherein the pretension is generated by the pretension connection (38) in the direction of the longitudinal axis (a) of the rail (13, 14).

3. Household refrigeration appliance (1) according to claim 1 or 2, characterized in that the positioning element (26) is oriented laterally with respect to the longitudinal axis (a) of the rail (13, 14) and is a free overhanging piece.

4. A domestic refrigeration appliance (1) according to claim 3, characterized in that the positioning element (26) is arranged on the end (17) of the rail (13, 14), in particular on the rear end (17) of the rail.

5. Household refrigeration appliance (1) according to claim 3 or 4, wherein the positioning element (26) is oriented vertically in the shape of a plate and/or is arranged obliquely, seen in a horizontal plane in a basic position, at an angle of between 45 ° and less than 90 °, in particular between 45 ° and 70 °, with respect to the longitudinal axis (a).

6. Household refrigeration appliance (1) according to one of the preceding claims, wherein the snap connection (39) is arranged only partially at the first third of the length of the rail (13, 14).

7. Household refrigeration appliance (1) according to one of the preceding claims, wherein the rail (13, 14) has a hollow cylinder (22) in whose cylinder wall (23) at least one snap-in element (24, 25) is integrally formed.

8. Household refrigeration appliance (1) according to claim 7, wherein the longitudinal axis (B) of the hollow cylinder (22) is oriented perpendicular to the longitudinal axis (a) of the rail (13, 14).

9. Household refrigeration appliance (1) according to claim 7 or 8, characterized in that at least two clamping elements (24, 25) are configured in the cylinder wall (23), in particular clamping elements (24, 25) which are arranged offset 180 ° relative to each other in the circumferential direction around the longitudinal axis (B) of the hollow cylinder (22).

10. Household refrigeration appliance (1) according to claim 9, wherein the snap-in elements (24, 25) are arranged with their free ends (24 a, 25 a) in different axial positions in the direction of the longitudinal axis (B) of the hollow cylinder (22).

11. Household refrigeration appliance (1) according to one of the preceding claims 7 to 10, characterized in that a rear piece (30) is arranged on the wall (6, 7, 8, 9, 10), which rear piece has a blind-hole-shaped recess (32) into which the hollow cylinder (22) is inserted and is snapped by means of at least one snap-in element (24, 25) with a counter-snap-in element (34, 35) formed on the wall (33) of the recess (32).

12. Household refrigeration appliance (1) according to one of the preceding claims, wherein the rail (13, 14) has at least one height adjustment element (27, 28, 29) by means of which the height position of the rail (13, 14) can be adjusted when assembled.

13. Household refrigeration appliance (1) according to claim 12, characterized in that the height adjustment element (27, 28, 29) is a plate-like sheet protruding from the elongated base (15) of the rail (13, 14) transversely to the longitudinal axis (a) of the rail (13, 14), wherein the height adjustment element (27, 28, 29) cooperates with a receiving portion (36) configured in a wall (6, 7, 8, 9, 10) of the inner container (4) and is coupled with at least one adjustment wall (40, 41) in the receiving portion (36) so as to adjust, in particular fixedly, the height position of the rail (13, 14) relative to the receiving portion (36).

14. Household refrigeration appliance (1) according to claim 12 or 13, characterized in that the rail (13, 14) has on the rear end (17) a plurality of independent height adjustment elements (27, 28, 29) arranged parallel to each other and spaced apart from each other.

15. Method for fitting a rail (13, 14) on a wall (6, 7, 8, 9, 10) of an inner container (4) of a domestic refrigeration appliance (1) according to one of the preceding claims 1 to 14, having the steps of:

inserting the positioning element (26) into a receptacle (36) in a wall (6, 7, 8, 9, 10) of the inner container (4);

pressing the positioning element (26) against the support (37), thereby pre-stressing the positioning element (26) in the depth direction (z) of the domestic refrigeration apparatus (1);

swinging the rails (13, 14) towards the walls (6, 7, 8, 9, 10) on the end (16) opposite to the end (17) where the pretensioned connection (38) formed by the positioning element (26) and the support (37) is located;

when the rails (13, 14) are pivoted into the final position, the locking connection (39) automatically locks.