DE102013225866A1 - Domestic refrigerator with rails on vertical walls of an inner tank - Google Patents

Abstract

The invention relates to a household refrigerating appliance (1) having an interior space (4) for accommodating food, which is delimited by walls (3a, 3b) of an inner container (3), and a rail extension device (7) provided with rails (8, 9 ) is arranged on opposite vertical walls (3a, 3b) of the inner container (3) and is designed to receive a tray (10) for receiving foodstuffs, a rail (8) fixedly arranged on a vertical wall (3a, 3b) Rail extension device (7) has a height (h) between 26 mm and 36 mm at least in a longitudinal section of its overall length and in this longitudinal section at least one on one of the wall (3a, 3b) facing rail side (8a) formed connecting bridge (11, 12) Tying the rail (8) to the vertical wall (3a, 3b) is formed, wherein the connection bridge (11, 12) raised with respect to the rail side (8a) in the direction of the wall (3a, 3b) is formed and at least one L. och (13) for performing a fastener.

Description

The invention relates to a household refrigerator with an interior for receiving food, which is limited by walls of an inner container. The household refrigerator further comprises a rail extension device, which is arranged with rails on opposite vertical walls of the inner container and for receiving a shell, which is designed for receiving food, designed.

Such a configuration is from the DE 10 2008 029 032 A1 known. There, these horizontally oriented rails are designed as telescopic rails.

Since inner containers which delimit an inner space for accommodating foods of such a household refrigerating appliance, however, are externally thermally insulated on the outside and, for example, a foam material is introduced into an intermediate space between an outer casing and the inner container, interruptions of this inner container should be avoided as far as possible.

The attachment of such rails, especially in household refrigerators on such an inner container is therefore difficult. On the other hand, in addition to the requirements with regard to maintaining the thermal insulation effect, sufficient weight forces must be able to be absorbed. These occur when trays are relatively large and thus have a relatively large dead weight and / or an extensive provision of food is provided. These requirements are reinforced by the fact that rail extension devices, which are also designed as solid extracts and thus as, for example, telescopic rails, a relatively wide extraction of these rails with the then applied container, in particular the shell, is possible. However, since the mechanical attachment takes place in the inner container on the vertical walls, then also occur relatively high leverage. This must be maintained, without the connection points are damaged and thereby possibly also the thermal insulation would be damaged.

In addition, it is necessary to consider the different types of household refrigerating appliances, so that here too there are different space conditions and connection possibilities. It is therefore currently a high number of variants of such rails required to equip all the corresponding devices individually with rail extension devices can. As a result, the warehouse logistics is extensive, the individual development effort is high and the individual assembly operations diverse.

It is an object of the present invention to provide a household refrigeration device in which the rails are designed such that at least a reduction in the variety of installation is given for different types of equipment as well as a reduction in the ready-to-hold rail and component variants.

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

An inventive domestic refrigerator comprises an interior for receiving food, which is bounded by walls of an inner container. The household refrigerator further comprises a rail extension device, which is arranged with rails on opposite vertical walls of the inner container. The rail extension device is designed to receive at least one shell. The bowl is intended to hold food and thus a food intake bowl.

An essential idea of the invention is to be seen in that a rail of the rail extension device fixedly arranged on a vertical wall of the inner container at least in a longitudinal section of its overall length which is dimensioned in the depth direction of the household refrigerating appliance has a height which is measured in the vertical direction of the household refrigerating appliance. between 26 mm and 36 mm. In this length section, a connection bridge is formed on the rail. This connection bridge is formed on a rail side, which faces the vertical wall of the inner container. The connection bridge is designed for connecting the rail to the vertical wall. The connection bridge is raised in relation to this rail side in the direction of the vertical wall of the inner container and has at least one hole for the passage of a fastening element, so that then the rail can be fastened to the vertical wall of the inner container via this fastening element.

Such a configuration of a rail simplifies assembly and reduces the number of variants to be kept ready. This is because, due to the specific heights, a more variable use is possible with different household refrigerators. In addition, a stability is achieved by this height design, in which also larger and heavier food intake trays can be introduced and moved horizontally accordingly. Moreover, it is precisely due to the local location Connecting bridge to the rail and its design allows a mechanically stable attachment that holds even greater leverage strengths.

It is preferably provided that the rail has a substantially equal height over its entire length. As a result, a very uniform, elongated component is created, which is improved with respect to the connection to the vertical wall and on the other hand the largest possible contact for receiving a shell is given.

It is preferably provided that the connection bridge has two bridge outlets, which are arranged in the direction of the longitudinal axis of the rail in series with each other. As a result, the configuration of the hole in the connection bridge or a specific hole geometry is simplified to the effect that the assembly and the introduction of fasteners can be made easier.

It is preferably provided that the connection bridge has a height between 12 mm and 13 mm, in particular between 12 mm and 12.5 mm. By such a specific height, a variable connection to rails, which have a rail height between 26 mm and 36 mm, uniformly at the same connection points on the vertical walls, in particular on the same backing parts occur. This makes it possible to use identical parts in different variants of rails in order to fasten these rails to the vertical walls. On the other hand, however, given such a height of the connection bridge sufficient stability to enable the mechanical attachment on the one hand positionally reliable and to allow the absorption of forces, in particular leverages without bending or twisting. In particular, it is provided that such a specific height of a connection bridge for rails with a rail height between 26 mm and 28 mm, in particular between 27 mm and 27.5 mm, as well as rails with a rail height between 34 mm and 36 mm, preferably between 34 , 5 mm and 35.5 mm, is formed. It is precisely these specific variants of overall heights of a rail in conjunction with a specific height of a connection bridge that fulfill the above-mentioned advantages in particular.

It is preferably provided that a backing part is arranged on the vertical wall, to which the connection bridge is fastened. As a result, an improved mechanical connection of the rail to the vertical wall of the inner container is achieved and increases the load capacity.

Preferably, it is provided that the backing part has a groove oriented in the depth direction of the household refrigerating appliance, into which the connecting bridge extends at least with a bridge middle section extending between bridge outlets. This is particularly advantageous in that during assembly a certain pre-positioning of the rail is achieved by this bridge middle section quasi engrossed sunk engaging in this groove and here already a corresponding support and then positioning is given. In addition, the mechanical power transmission is then improved in the assembled final state, since the connection bridge is arranged and embedded over a large area on the backing part.

In particular, the backing part has a support on which the connection bridge is seated. This support is formed in particular by a lower horizontal boundary wall of the groove.

Preferably, it is provided that the connection bridge has a support surface complementary to the support of the backing part, so that a large-area abutment is given.

In particular, the backing part by a rear wall of the groove on a support surface for the connection bridge, so that it is then preferably contacted by the support and the support wall from two sides and held positionally.

Preferably, it is provided that in a further alternative embodiment, the backing part is made of plastic. As a result, it can be easily provided as a one-piece, weight-reduced component and installed accordingly.

In particular, the backing part is formed as a bearing bush which is arranged on the inner container and preferably extends through a recess in the inner container on both sides of the vertical wall to which it is attached, and is thus kept correspondingly improved.

In a further embodiment, it can preferably be provided that the backing part is a strip-shaped metal plate. In such an embodiment, it is then possible that with two separate connection points of a rail only single such component in the form of the metal plate is present.

In the above-mentioned further alternative embodiment with the designed as a bearing bush embodiment of a backing part is provided at an at least two-point connection of the rail that two separate such backing parts are arranged at the respective locations of the vertical wall of the inner container.

Preferably, it is provided that the rail in a first embodiment, at least in the longitudinal section has a height between 26 mm and 28 mm, in particular between 26.5 mm and 27.5 mm. In particular, in such a height-specified rail then the height of a connection bridge between 12 mm and 13 mm, in particular between 12 mm and 12.5 mm. In addition, it is provided in such an advantageous embodiment of a rail with the specific heights that the hole for performing a fastener in the connection bridge is designed so that it is designed a slot with a trained in height constriction for local reduction of the clear height. It is thus virtually formed a keyhole-like geometry of this hole. Such a configuration can be carried out at such a height-specified rail improved mounting and attachment and to do a smaller screws through the holes. In the context of the specific hole geometry, a simpler installation can be carried out to the effect that first threading of the fastener via one of these hole areas, and in the other hole area then the actual attachment and shipment is achieved in the final position.

This modified, in particular with a smaller screw head trained, fastener, in particular a screw, can then be used for all rails.

When assembling a simplification is achieved in that these screws for the backing part positioning only solved and no longer need to be completely removed, as then by the specific hole geometry by a horizontal displacement of the rails then a separation can take place. The positioning of the rail on the displacement by the defined hole geometry is then very easily possible and then the fastener again brought into the screwed end position, when the rail is arranged in the desired position.

Preferably, therefore, it is also quite generally provided that the hole in the connection bridge has a slot with a constriction formed in the height direction for reducing the clear height.

The achievable assembly advantages have already been mentioned above.

It is preferably provided that a first hole area on one side of the constriction has a smaller maximum clear height than a second hole area on the other side of the constriction. This also achieves a certain asymmetry of this specific keyhole-like hole geometry. This has advantages with regard to the threading of the fastener on the one hand and then to be performed end fastening on the other.

In an advantageous embodiment, it is provided that a first hole area on one side of the constriction forms completely in a bridge middle section of the connection bridge and a second hole section on the other side of the constriction subsequently forms from the bridge middle section into a bridge outlet. Thereby, the above-mentioned advantages with regard to the threading and displacement are promoted without a complete separation of the fastening element. The handling of the assembly is simplified and thus can be carried out faster.

It is preferably provided that a connection bridge is integrally formed on a rail as embossing on the rail. The rail is designed in particular of metal. By embossing such an embodiment, an increase in stability and mechanical strength can be achieved.

In a further advantageous embodiment, the rail comprises a rail height between 34 mm and 36 mm, in particular between 34.5 mm and 35.5 mm and the connection bridge a height between 12 mm and 12.5 mm. In particular, in such an embodiment, a hole for passing through a fastener on a connection bridge as a slot with a view formed in the height direction constriction designed to reduce the clear height. Preferably, this specific hole geometry is formed as already advantageously explained above. By such a specification of a further embodiment of a rail, it can also be easily installed on backing parts, in particular bearing bushes, as explained above. Again, then provided as the same components bearing bushes can be used and carried out by a then also provided with these rails height of the connection bridge engaging in a corresponding groove of this Hinterlegteils.

Both a rail with a rail height between 26.5 mm and 27.5 mm, as well as a rail with a rail height between 34.5 mm and 35.5 mm is thereby mounted on such a similar backing part.

It is preferably provided that a rail has at least two connection bridges, so that the rail can be fastened to the vertical wall at at least two locations and is held accordingly.

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 view of a rail of a rail extension device with a view of connecting bridges;

3 a partial view of another embodiment of a connection bridge with a hole geometry;

4 a further embodiment of a connection bridge with a further hole geometry in partial representation of a rail;

5 a perspective view of a trained as a bearing bush backing part; and

6 a side view of the backing part according to 5 with rail of a rail extension device arranged thereon.

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

In 1 is a simplified schematic representation of a household refrigerator 1 which may be, for example, a refrigerator or a freezer or a refrigerated combined freezer. The household refrigerator 1 includes a housing 2 which is an inner container 3 surrounds. The inner container 3 limited with its walls an interior 4 , which is designed to receive food. This includes the inner container 3 vertical side walls 3a and 3b and an unspecified back wall and a ceiling wall and a bottom wall.

A front loading opening 6 of the inner container 3 is through a door 5 closable.

In addition, it is provided that a rail extension device 7 is formed on opposite walls 3a and 3b is arranged. In the exemplary embodiment it is provided that the two rail extension devices 7 are each formed as telescopic rails and thus have a fixed rail and at least one respective running rail.

For further explanation of a rail extension device is only on the in 1 fully recognizable left rail extension device 7 Whereas those on the wall 3b arranged further rail extension device 7 is constructed analogously. The rail extension device 7 includes a first rail 8th , which are fixed to the vertical wall 3a is attached.

Furthermore, the rail extension device comprises 7 one relative to the first rail 8th movable and moreover arranged thereon track as the second rail 9 ,

The rail extension device 7 with their rails 8th and 9 is oriented in the depth direction (z-direction) and thus arranged horizontally, so that one on the rail extension device 7 arranged container in the form of a food receiving bowl 10 in the depth direction is back and forth.

The first rail 8th is in a first execution in 2 shown. The first rail 8th has in this embodiment a height in the vertical direction and thus in the y direction measured rail height h, which is between 35 mm and 35.5 mm. This rail height h is preferably over the entire length, which extends along a longitudinal axis A of the first rail 8th measured and thus measured in the assembled state in the z-direction, the same design.

Thus, here is a length section formed with this total rail height h, which extends over the entire length of the rail 8th extends.

On a rail side 8a in the assembled state of the vertical wall 3a facing, are spaced and seen in the direction of the longitudinal axis A in series with each other two connection bridges 11 and 12 educated. These are integral with the rail 8th designed and preferably formed as embossments. They extend raised against the rail side 8a towards the wall 3a , The connection bridge 11 includes a first bridge spout 11a and a second bridge spout 11b , each in the rail side 8a lead. Between the Brückenausläufen 11a and 11b is a bridge center section 11c educated. In this bridge center section 11c is a hole 13 formed, which in the embodiment shown a slot with a constriction 14 is. The constriction 14 is designed so that at this point the clear height of the hole 13 is reduced, in particular minimized.

In this embodiment, two hole areas 13a and 13b completely in the bridge center section 11c educated.

With regard to the design of another hole in the connection bridge 12 may refer to the explanations and explanations of the connection bridge 11 be referenced, since the design in the connection bridge 12 is identical.

The connection bridges 11 and 12 have a height h1, measured in the y-direction, which is between 12 mm and 12.5 mm.

In another embodiment, as in 3 in a partial representation of the rail 8th is shown, it is provided that the height h is between 26.5 mm and 27.5 mm. Again, it is then provided that the height h1 of the connection bridge 11 and also the connection bridge 12 between 12 mm and 12.5 mm. In this embodiment, in contrast to the embodiment in 2 further provided that the hole area 13b that is a second hole area, partially in the bridge center portion 11c and partly in the other connecting bridge 12 facing bridge outlet 11b extends.

In the embodiment in 3 In addition, it is provided that a circle center of the circular geometry of the first hole area 13a in the middle of the along the axis A dimensioned length of the bridge center section 11c located.

In 4 In contrast, an embodiment is shown, in contrast to the representation in 3 this center of the first hole area 13a Off-center has moved, in the direction of the other connection bridge 12 remote bridge run 11a ,

In 5 In one embodiment, it is a backing piece 15 shown which on the vertical inner wall 3a is arranged and on both sides of this inner wall 3a extends. This backing part 15 is quasi designed as a bearing bush and with locking elements 15a and 15b on the outside, the housing 2 facing the wall 3a held.

The backing piece 15 points into the interior 4 extending section one of the rail 8th facing groove 16 into which the locally assigned connection bridge 11 or 12 extends into it, as shown in the side view in 6 can be seen. In addition, by inserting or screwing a fastener, in particular a screw, into a bore 17 in the backing part 15 prepositioned this fastener. Subsequently, the rail is then during assembly 8th , possibly already with the rail 9 attached thereto and to these prepositioned fasteners in the backing parts 15 deferred, this being from the second hole area 13b ago, so that in this regard a threading is performed. It is then the fastener in the first hole area 13a and then has to be finally bolted, so that then the rail 8th Position fixed is arranged. For this purpose, it is provided that the fastening element is a screw having such a small screw head, that it can be threaded and fixed accordingly and thus such a fastener in turn many different rails 8th with different overall heights h between 26 mm and 36 mm, however, can be used with the same sized holes.

In 6 is also shown that the connecting bridge 11 on a pad 18 sitting by a the groove 16 bounding wall is formed. The connection bridge 11 preferably has a complementary surface formed on this edition 18 over a large area. Furthermore, the groove 16 a back wall 19 on, on which the connecting bridge 11 abuts, allowing support from two sides by the support 18 and the back wall 19 given is.

It can also be provided that instead of two separate backing parts 15 a single backing part is provided, in particular in the form of a strip-shaped metal plate.

LIST OF REFERENCE NUMBERS

1

 Household refrigerator

2

 casing

3

 inner container

3a

 vertical side wall

3b

 vertical side wall

4

 inner space

5

 door

6

 loading port

7

 Rail expansion

8th

 rail

9

 rail

10

 Food-carrying tray

11

 connection bridge

11a

 first bridge outlet

11b

 second bridge outlet

11c

 Bridge center section

12

 connection bridge

13

 hole

13a

 hole section

13b

 hole section

14

 constriction

15

 backing piece

15a

 locking element

15b

 locking element

16

 groove

17

 drilling

18

 Aufklage

19

 retaining wall

H

 rail height

h1

 height

A

 axis

QUOTES INCLUDE IN THE DESCRIPTION

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

Cited patent literature

• DE 102008029032 A1 [0002]

Claims (15)

Household refrigeration appliance ( 1 ) with an interior ( 4 ) for ingesting food through walls ( 3a . 3b ) of an inner container ( 3 ) is limited, and with a rail extension device ( 7 ) with rails ( 8th . 9 ) on opposite vertical walls ( 3a . 3b ) of the inner container ( 3 ) is arranged and for receiving a shell ( 10 ) is designed for receiving foodstuffs, characterized in that one on a vertical wall ( 3a . 3b ) stationarily arranged rail ( 8th ) of the rail extension device ( 7 ) has a height (h) between 26 mm and 36 mm at least in a longitudinal section of its overall length, and in this longitudinal section at least one on one of the walls ( 3a . 3b ) facing rail side ( 8a ) formed connecting bridge ( 11 . 12 ) for tying the rail ( 8th ) to the vertical wall ( 3a . 3b ) is formed, wherein the connection bridge ( 11 . 12 ) raised opposite the rail side ( 8a ) towards the wall ( 3a . 3b ) is formed and at least one hole ( 13 ) for performing a fastener. Household refrigeration appliance ( 1 ) according to claim 1, characterized in that the rail ( 8th ) has a substantially equal height (h) over its entire length. Household refrigeration appliance ( 1 ) according to claim 1 or 2, characterized in that the connecting bridge ( 11 . 12 ) two bridge outlets ( 11a . 11b ), which in the direction of the longitudinal axis (A) of the rail ( 8th ) are arranged in series with each other. Household refrigeration appliance ( 1 ) according to one of the preceding claims, characterized in that the connecting bridge ( 11 . 12 ) has a height (h1) between 12 mm and 13 mm, in particular between 12 mm and 12.5 mm. Household refrigeration appliance ( 1 ) according to one of the preceding claims, characterized in that on the vertical wall ( 3a . 3b ) at least one backing piece ( 15 ) is arranged, on which the connection bridge ( 11 . 12 ) is attached. Household refrigeration appliance ( 1 ) according to claim 5, characterized in that the backing part ( 15 ) one in the depth direction of the household refrigerator ( 1 ) oriented groove ( 16 ), into which the connecting bridge ( 11 . 12 ) at least one between Brückenausläufen ( 11a . 11b ) extending bridge center section ( 11c ) extends into it. Household refrigeration appliance ( 1 ) according to claim 5 or 6, characterized in that the backing part ( 15 ) is formed of plastic. Household refrigeration appliance ( 1 ) according to one of claims 5 to 7, characterized in that the backing part ( 15 ) is designed as a bearing bush. Household refrigeration appliance ( 1 ) according to claim 5, characterized in that the backing part is a strip-shaped metal plate. Household refrigeration appliance ( 1 ) according to one of the preceding claims, characterized in that the rail ( 8th ) at least in the longitudinal section has a height (h) between 26 mm and 28 mm, in particular between 26.5 mm and 27.5 mm. Household refrigeration appliance ( 1 ) according to one of claims 1 to 9, characterized in that the rail ( 8th ) at least in the longitudinal section has a height (h) between 34 mm and 36 mm, in particular between 34.5 mm and 35.5 mm. Household refrigeration appliance ( 1 ) according to one of the preceding claims, characterized in that the hole ( 13 ) in the connection bridge ( 11 . 12 ) a slot with a height formed, the clear height of the hole ( 13 ) reducing constriction ( 14 ) having. Household refrigeration appliance ( 1 ) according to claim 12, characterized in that a first hole area ( 13a ) on one side of the constriction ( 14 ) has a smaller maximum clear height than a second hole area ( 13b ) on the other side of the constriction ( 14 ). Household refrigeration appliance ( 1 ) according to claim 12 or 13, characterized in that a first hole area ( 13a ) on one side of the constriction ( 14 ) completely in a bridge center section ( 11c ) and a second hole area ( 13b ) on the in the direction of the longitudinal axis (A) of the rail ( 8th ) other side of the constriction ( 14 ) next to the first hole area ( 13a ) from the bridge center section ( 11c ) in a bridge outlet ( 11b ) trains. Household refrigeration appliance ( 1 ) according to one of the preceding claims, characterized in that the connecting bridge ( 11 . 12 ) in one piece as embossing on the rail ( 8th ) is trained.

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