EP2609386B1 - Refrigerator comprising a pull-out container for refrigeration articles - Google Patents

Description

The invention relates to a refrigeration appliance, in particular domestic refrigeration appliance, comprising an inner container with a front, closable by a door opening for removing and / or inserting refrigerated goods, and a pull-out refrigerated goods, and storage means for extractable storage of Kühlgutbehälters in the inner container, wherein the storage means opposite sides of the refrigerated goods each having at least one roller, which roll on at least one abutment surface of the inner container.

The DE 92 06 166 U1 describes a drawer slide, preferably for built-in or standing cooling furniture, with attached to the lateral body parts of the furniture guide rails in which run on both sides of the drawer coaxially mounted rollers, and in which the two rollers are mounted in the insertion direction at the front end of the drawer , wherein in the outer insertion-side end region of the guide rails on the side walls of the body part coaxially two rollers are mounted, which are supported on the lateral edge regions of the bottom of the drawer.

document DE202006007339 V1 discloses a refrigerator according to the preamble of claim 1.

The object of the invention is to provide a refrigeration device, in which a refrigerated goods container is equipped with a cost-storage means that allows easy cleaning of the refrigerated goods.

A refrigeration appliance is understood in particular to be a household refrigeration appliance, that is to say a refrigeration appliance which is used for household purposes or possibly also in the gastronomy sector, and in particular for storing food and / or drinks in household quantities at specific temperatures, such as, for example, a refrigerator, a freezer or a fridge freezer combination.

The object is achieved by a refrigerator, in particular domestic refrigeration appliance, comprising an inner container with a front, closed by a door opening for removing and / or inserting refrigerated goods, and an extendable refrigerated goods, and storage means for extractable storage of Refrigerated goods container in the inner container, wherein the bearing means on opposite sides of the refrigerated goods each having at least one roller which roll on at least one abutment surface of the inner container, wherein the at least one roller rotatably disposed in an intermediate housing member, which is releasably secured to the refrigerated goods container.

By the at least one roller is rotatably mounted in an intermediate housing member and the intermediate housing member is releasably secured to the refrigerated goods, the at least one roller, for example, for cleaning purposes of the refrigerated goods easily dismantled and mounted after cleaning again in a simple manner. On the one hand, the intermediate housing component according to the invention can screen or protect the impeller from dirt and / or moisture entering the refrigerated goods container and, on the other hand, after disassembly of the roller and intermediate housing component, a cavity of the refrigerated goods container accommodating the roller can be easily cleaned on its insides. Possibly the use in the area of the roller fixed and / or coiled on an axis of the roller Kühlgutreste could be easily removed in the context of disassembly of the roller, axle and intermediate housing component. Overall, the hygiene in the refrigeration device can be improved with a roller according to the invention and an intermediate housing component according to the invention.

Particularly advantageous is the use of rollers according to the invention and intermediate housing components according to the invention on vegetable trays.

In one embodiment, two rollers may be rotatably mounted on opposite side walls of the refrigerated goods at the rear region of the refrigerated goods. As a result, the refrigerated goods container is also supported in a slightly raised state by at least two support points of the two rollers rotatably mounted on opposite side walls of the refrigerated goods container, so that the refrigerated goods container is prevented from tilting. In another embodiment, two rollers may be rotatably mounted on opposite side walls of the refrigerated goods at a central region of the refrigerated goods. Thus, the refrigerated goods container is well balanced due to the near position of the center of gravity on the axes of rotation of the rollers. In a further embodiment, at a front portion of the Refrigerated goods container two rollers to be rotatably mounted on opposite side walls of the refrigerated goods. The rollers at a front region of the refrigerated goods container can in particular be combined with rollers at the rear region of the refrigerated goods container.

The rollers may have a tread of a thermoplastic material, in particular with a sliding friction coefficient between 0.3 and 0.5 μ, in particular between 0.38 and 0.42 μ, in particular of polyoxymethylene (POM). Such a selection of the sliding friction coefficient for the running surface of the rollers can cause the refrigerated goods can be pulled out or pushed with little effort from the inner container even with blocked rollers and / or stiff rollers. According to the invention, a fixed roller can form a sliding bearing in this respect.

In all embodiments according to the invention, in each case two or more, in particular three separate rollers may be arranged on the central and / or front region of the refrigerated goods container on opposite side walls of the refrigerated goods container. The two or more, in particular three separate rollers may spaced from each other, in particular uniformly spaced from each other along a depth direction on Kühlgutbehälter extend. By means of the two or more rollers, the refrigerated goods can be supported not only in a front area, but also in a central and / or rear depth region of the refrigerated goods.

Depending on the size, in particular depth of the refrigerated goods container, the rollers can be mounted together with the intermediate housing component of the invention of the same type and / or size of different refrigerated goods in various numbers. Thus, for example, only one or two rollers and intermediate housing components can be provided on each side in the case of refrigerated goods containers having, for example, half the depth of the refrigerator. For refrigerated goods containers large or full depth, for example, three or more rollers and intermediate housing components per page can be provided. The three or more rollers and intermediate housing components may also be available in different variable ones Fixed distances on side walls and / or bottom walls of the refrigerated goods, in particular clamped.

According to the invention, each roller can be rotatably mounted in a separate intermediate housing component, which has a latching means or clamping means for its attachment to the refrigerated goods container. As a result, in particular, a roller body of the roller can be rotatably mounted, for example, by means of an axle pin on a roller housing of the roller, without having to make rotary bearing seats on the refrigerated goods container itself.

The refrigerated goods can be stored for example in a cold storage in which food is stored at temperatures between about zero degrees Celsius and, for example plus eight degrees Celsius. Alternatively, the refrigerated goods can be stored in a freezer in which food at temperatures between about minus five degrees Celsius and, for example, minus eighteen degrees Celsius frozen or stored frozen. In particular, two or more refrigerated goods containers may be arranged with bearing means according to the invention in the respective refrigerator compartment or freezer compartment.

A special feature of the invention may be that both at least one roller and at least one sliding bearing point are provided together on the refrigerated goods container or are used thereon. The at least one roller may in particular be stored in a rear area, ie in spatial proximity to a rear wall of the inner container on the refrigerated goods. A bearing of the at least one roller in a rear region of the refrigerated goods container, in particular at least two mounted on opposite sides of the refrigerated goods rolls rollers, can therefore be provided according to the invention in particular because it can be determined that a user when pulling out a refrigerated goods this mostly on a refrigerated goods front and / / or grips a handle and when pulling out the refrigerated goods easily lifts, which has the consequence that front bearing surfaces, ie the sliding bearings of the refrigerated goods are relieved and located in the rear of the refrigerated goods at least one roller is additionally charged. Since a rolling friction of the roller in principle turns out to be less than a sliding friction of the front bearing surfaces, ie the sliding bearing points is through the Arrangement of the rollers in a rear portion of the refrigerated goods reduces the total required force to pull out the refrigerated goods.

In all embodiments according to the invention, the at least one roller can be rotatably mounted in the intermediate housing component. For this purpose, the intermediate housing component may have inwardly facing projections on which the roller is rotatably interposed. The projections can form stub axle, on which hub portions of the roller are rotatably mounted. The inwardly facing projections may be formed integrally with the intermediate housing component. In a variant, a separate axis may be provided, on which the roller is rotatably mounted, wherein the separate axis can be mounted on the intermediate housing component or inserted into the intermediate housing component.

Alternatively, the roller can be rotatably mounted on an axis which has a first axle end supporting on the intermediate housing component and a second axle end supported on the refrigerated goods container. In this embodiment, the axle between the refrigerated goods and the intermediate housing member is stored, inserted, inserted and / or clamped. By only one axle end in the intermediate housing component and only one axle end in the refrigerated goods container is provided in each case, the production, for example in the plastic injection molding process and cleaning can be simplified.

In one embodiment of the invention, the axle may be formed integrally with the intermediate housing component. In this embodiment, an inwardly projecting stub axle is integrally formed on an inner wall of the intermediate housing component and extends in the direction of a wall of the refrigerated goods container. During assembly, the roller can first be attached to the molded stub axle and then attached the intermediate housing component together with the roller to the refrigerated goods, in particular snapped or snapped. During the snap or latching operation, the free end of the stub axle penetrates into a corresponding, hub-like receptacle on a side wall or bottom wall of the refrigerated goods container.

The axis may be formed on an inner side of a wall of the intermediate housing component such that it extends into a cavity of the intermediate housing component and the freely projecting axle end is supported in a bearing seat of the refrigerated goods container in a position of the intermediate housing component fastened to the refrigerated goods container.

The axle may alternatively be arranged as a separate component in the intermediate housing component and / or stored between the intermediate housing component and the refrigerated goods container. In this case, in a special embodiment, the axle may be made of a metallic material, in particular steel. By using a metallic axle, in particular a steel axle, the fatigue strength of the roller bearing can be improved. In particular, higher weight forces can be absorbed by a metallic axle, in particular a steel axle.

The intermediate housing component may have a bearing seat on which the first axle end is supported and the refrigerated goods container may have a further bearing seat on which the second axle end is supported. The intermediate housing component may in particular have a bearing seat on which the first axle end is releasably mounted and the refrigerated goods container may have a further bearing seat on which the second axle end is detachably mounted.

The roller can be attached to the axle. In particular, the roller may have a fixedly connected to the roller or formed with the roller hub, which rotates on a fixed axis. In all embodiments according to the invention, two or more rollers can generally also be rotatably mounted on a common axis. By using several rollers per intermediate housing component, the carrying capacity can be increased. Alternatively to an attachment of the roller to an axle, the roller may have two opposite, pointing away from each other axle stub, or two stub axles may be integrally formed on opposite end faces of the roller, which are rotatably mounted in opposite hub seats. In this case, one hub seat each can be provided on a wall of the refrigerated goods container and one hub seat each on an inner wall of the intermediate housing component, in particular integrally formed.

In all embodiments according to the invention, the intermediate housing component can be detachably fastened to the refrigerated goods container by means of a latching connection.

For this purpose, the intermediate housing component may have at least one, in particular two, opposing latching lugs, which engage behind in the mounted position of the intermediate housing latch catches of the refrigerated goods container.

In all embodiments according to the invention, the intermediate housing component may further comprise at least one guide section, in particular at least one web, which, in cooperation with a counter guide section, in particular a guide groove on the refrigerated goods container, predetermines an assembly insertion direction. By specifying an assembly insertion direction, the assembly can be facilitated because a projecting free axis end can be reliably inserted into a corresponding seat on the refrigerated goods, even if the projecting free axis end are optically hidden by wall sections of the intermediate housing component.

In all embodiments of the invention, the locking connection may be formed to specify a mounting direction for the preassembled intermediate housing component, which is different from a by the weight of the refrigerated goods and / or stored therein refrigerated goods adjusting load direction, in particular to specify a mounting direction which is perpendicular to the load direction. Mounting direction and the load direction may be different insofar. As a result, the intermediate housing component is reliably fastened to the refrigerated goods container, in particular latched, and unwanted dropping off can be prevented. In other words, the load of the refrigerated goods container and / or the refrigerated goods stored therein cause no force that can drive a latching out of a counter-locking, whereby the intermediate housing component could possibly detach from the refrigerated goods container.

In other words, the invention may relate to a domestic refrigerator, with at least one roller rotatably mounted in an intermediate housing member, the intermediate housing member being releasably secured to the refrigerated goods container. Thus, the roller can be safely attached to a shell, especially on a refrigerated goods container. The roller and associated storage can be easily cleaned by a user. An assembly can also be simplified. So a housing, In particular, an intermediate housing component may be integrated with a shaft or an axle which receives a roller. The housing or the intermediate housing component can be pushed and clipped from the outside, for example, on one side into a receptacle of the shell, in particular refrigerated goods containers. Depending on the requirements and carrying capacity, a version with an additional steel axle or with a plastic axle molded onto the housing, in particular to the intermediate housing component made of plastic, can be represented. A special feature may be that the axis is not only in the housing, ie stored in the intermediate housing component, but also in the mounting direction in an abutment on the shell, in particular on the refrigerated goods container can be inserted. Thus, a two-sided storage with high load capacity can be achieved. Another feature of the invention may be that the mounting direction and the load direction are different. Thus, a clip connection when moving the shell or the refrigerated goods is unloaded. For assembly, first an axle, in particular a separate steel axle, can be pressed into the housing, ie into the intermediate housing component, then the roller is pushed onto the axle and then the preassembled structural unit of intermediate housing component, axle and roller is latched to the shell, ie the refrigerated goods container. or snapped into an installation niche on a wall of the refrigerated goods container or clipped.

Exemplary embodiments of the invention are based on the FIGS. 1 to 7 described. From the detailed description of these specific embodiments, there are also other general features and advantages of the present invention.

Fig. 1

eine perspektivische Schnittansicht aus einem Haushaltskältegerät mit einem erfindungsgemäßen Kühlgutbehälter;

Fig. 2

eine perspektivische Teilansicht aus einem Kühlgutbehälter im Bereich einer erfindungsgemäßen Laufrolle mit einem erfindungsgemäßen Zwischengehäusebauteil in seiner montierten Position;

Fig. 3

eine explodierte Darstellung eines Ausschnitts aus dem Kühlgutbehälter, der Laufrolle, einem Achsstift und dem erfindungsgemäßen Zwischengehäusebauteil gemäß Fig. 2 vor einer Montage;

Fig. 4

eine explodierte Darstellung des Ausschnitts aus dem Kühlgutbehälter, der Laufrolle, dem Achsstift und dem erfindungsgemäßen Zwischengehäusebauteil gemäß Fig. 2 bei montiertem Achsstift und aufgesetzter Laufrolle;

Fig. 5

eine perspektivische Darstellung des Ausschnitts aus dem Kühlgutbehälter analog Fig. 2, bei vollständig montiertem Zwischengehäusebauteil mit Laufrolle und Achsstift;

Fig. 6

eine Schnittdarstellung einer erfindungsgemäßen Laufrollenlagerung mit separatem Achsstift;

Fig. 7

eine Schnittdarstellung einer erfindungsgemäßen Laufrollenlagerung mit einer Achse, die an dem erfindungsgemäßen Zwischengehäusebauteil angeformt ist.

Show it:

Fig. 1

a perspective sectional view of a household refrigerator with a refrigerated goods according to the invention;

Fig. 2

a partial perspective view of a refrigerated goods in the range of a roller according to the invention with an intermediate housing component according to the invention in its mounted position;

Fig. 3

an exploded view of a section of the refrigerated goods, the roller, an axle and the intermediate housing component according to the invention according to Fig. 2 before a montage;

Fig. 4

an exploded view of the section of the refrigerated goods, the roller, the axle and the intermediate housing component according to the invention Fig. 2 with mounted axle pin and attached roller;

Fig. 5

a perspective view of the section of the Kühlgutbehälter analog Fig. 2 , with fully assembled intermediate housing component with roller and axle pin;

Fig. 6

a sectional view of a roller bearing according to the invention with a separate axle pin;

Fig. 7

a sectional view of a roller bearing according to the invention with an axis which is integrally formed on the intermediate housing component according to the invention.

An in Fig. 1 1 shows a lower section of an inner container 2 in a cutaway view, in which a refrigerated goods container 3 mounted in an extendable manner in the inner container 2 is arranged. The inner container 2 has a front-side closable opening 4 for removal and / or insertion of refrigerated goods. The refrigerated goods container 3 is extendable and stored in the inner container 2. For this purpose, bearing means 5 are provided. The bearing means 5 have in the illustrated embodiment on the ground in a central region of opposite side walls of the refrigerated goods 3 arranged rollers 8a and 8b. The rollers 8a and 8b can roll along mating surfaces 6a and 6b at a bottom of the inner container 2 in the extension direction. In the illustrated embodiment, two rollers 8a and 8b are rotatably mounted on opposite sides of the inner container 2 in a central region of the inner container 2. Against a tilting of the refrigerated goods container 3 in the extended position, a rib 13 is attached to one or both side walls 2a of the inner container 2 or in the embodiment molded or tightened. The rib 13 serves to guide the refrigerated goods container 3 from above on lateral edges of the refrigerated goods container 3. On an upper side of the rib 13, a storage surface or glass plate, not shown, can be placed.

In the Fig. 2 the refrigerated goods container 3 is shown in the region of a roller 8a, 8b according to the invention with an intermediate housing component 7 according to the invention in its mounted position. The roller 8a, 8b is rotatably disposed in the intermediate housing member 7. The intermediate housing component 7 is in turn detachably fastened to the refrigerated goods container 3. The intermediate housing component 7 is inserted in the illustrated embodiment in a niche 9 of a side wall 11 of the refrigerated goods 3 from. In the retracted position of the intermediate housing component 7, the roller 8a, 8b projects downwards beyond a bottom 12 of the refrigerated goods container 3.

In the Fig. 3 is a section of the refrigerated goods 3 shown. Furthermore, the shows Fig. 3 in each case alone the roller 8a, 8b, an axle 14 and the intermediate housing component 7 according to the invention prior to assembly. The roller 8a, 8b is rotatably supported in the intermediate housing member 7 by means of the axle 14. The axle 14 has a first axle end 14a supported on the intermediate housing component 7 and a second axle end 14b supported on the refrigerated goods container 3. To support the axle 14 between the refrigerated goods container 3 and the intermediate housing component 7, the intermediate housing component 7 has a bearing seat 15 on which the first axle end 14a is supported and the refrigerated goods container 3 has a further bearing seat 16 on which the second axle end 14b is in the Supported mounting position. The bearing seat 15 is formed on an inner side 17a of a wall 17 of the intermediate housing component 7 in the manner of a hollow cylindrical hub body.

In the Fig. 4 is the section of the refrigerated goods 3 according to Fig. 3 shown. Furthermore, the shows Fig. 4 also the roller 8a, 8b, the axle 14 and the intermediate housing component 7 according to the invention during assembly. As in Fig. 4 illustrated is the axis 14 and the attached roller 8a, 8b pre-assembled to the intermediate housing member 7. The axle 14 is arranged as a separate component in the intermediate housing component 7 or, as in the following Fig. 5 shown, stored between the intermediate housing member 7 and the refrigerated goods 3.

In the Fig. 5 the intermediate housing component 7 with roller 8a, 8b and axle pin 14 is completely mounted on the refrigerated goods container 3. In the illustrated exemplary embodiment, the intermediate housing component 7 in each case has a latching nose 18a, 18b on two opposite sides. The detents 18a, 18b engage behind in the Fig. 5 shown mounted position of the intermediate housing component 7 provided on Kühlgutbehälter 3 locking recesses 19a, 19b, as they are also in Fig. 3 and Fig. 4 are shown.

The intermediate housing component 7 can, as in the embodiment of the Fig. 4 is shown, at least one, here by way of example two opposite guide sections, in particular at least one web 20, which defines an assembly insertion direction in cooperation with a counter guide portion, in particular a guide groove 21 on refrigerated goods.

In the Fig. 6 a first embodiment of a roller bearing according to the invention with a separate axle pin is shown. The axle pin, ie the axis 14, is arranged as a separate component in the intermediate housing component 7 or mounted between the intermediate housing component 7 and the refrigerated goods container 3. For this purpose, the intermediate housing component 7 on the bearing seat 15, on which the first axis end 14a is supported. The refrigerated goods container 3 has the further bearing seat 16, on which the second axle end 14b is supported. The roller 8a, 8b is attached to the axle 14.

In the Fig. 7 a second embodiment of a roller bearing according to the invention with an axis 14 is shown, which is integrally formed on the intermediate housing component 7 according to the invention. The axle 14 is formed integrally with the intermediate housing component 7. The axis 14 is formed in the second embodiment on the inner side 17a of a wall 17 of the intermediate housing member 7 such that it extends into a cavity of the intermediate housing member 7 and the cantilevered shaft end 14b in a position attached to the refrigerated goods 3 position of the intermediate housing member 7 in the Bearing seat 16 of the refrigerated goods 3 is supported.

Claims (13)

1. Refrigerator, in particular household refrigerator, comprising an inner container (2) with a front opening (4), which can be closed by a door leaf, for unloading and/or loading refrigerated products and a pull-out refrigerated product container (3), and support means (5) for the pull-out support of the refrigerated product container (3) in the inner container (2), wherein the support means (5) comprise in each instance at least one roller (8a, 8b) on opposite sides of the refrigerated product container (3), said roller rolling on at least one counter bearing surface (14) of the inner container (2), characterised in that the at least one roller (8a, 8b) is rotatably mounted in an intermediate housing component (7), which is detachably fastened to the refrigerated product container (3).
2. Refrigerator according to claim 1, characterised in that the roller (8a, 8b) is rotatably mounted on a shaft (14), which comprises a first end of the shaft (14a) which is supported against the intermediate housing component (7) and a second end of the shaft (14b) which is supported against the refrigerated product container (3).
3. Refrigerator according to claim 2, characterized in that the shaft (14) is embodied in one piece with the intermediate housing component (7).
4. Refrigerator according to claim 3, characterised in that the shaft (14) is moulded on an interior (17a) of a wall (17) of the intermediate housing component (7) such that it extends into a cavity of the intermediate housing component (7) and the freely projecting end of the shaft (14b), in a position of the intermediate housing component (7) which is fastened to the refrigerated product container (3), is supported in a bearing seat (16) of the refrigerated product container (3).
5. Refrigerator according to claim 2, characterised in that the shaft (14) is arranged as a separate component in the intermediate housing component (7) and/or is mounted between the intermediate housing component (7) and the refrigerated product container (3).
6. Refrigerator according to claim 5, characterised in that the shaft (14) is produced from a metallic material, in particular steel.
7. Refrigerator according to claim 5 or 6, characterised in that the intermediate housing component (7) has a bearing seat (15), against which the first end of the shaft (14a) is supported and the refrigerated product container (3) has a further bearing seat (16), against which the second end of the shaft (14b) is supported.
8. Refrigerator according to claim 7, characterised in that the intermediate housing component (7) has a bearing seat (15), against which the first end of the shaft (14a) is detachably supported, and the refrigerated product container (3) has a further bearing seat (16), against which the second end of the shaft (14b) is detachably supported.
9. Refrigerator according to one of claims 2 to 8, characterised in that the roller (8a, 8b) is mounted on the shaft (14).
10. Refrigerator according to one of claims 1 to 9, characterised in that the intermediate housing component (7) is detachably fastened to the refrigerated product container (3) by means of a snap-on connection.
11. Refrigerator according to claim 10, characterised in that the intermediate housing component (7) comprises at least one, in particular two opposing lugs (18a, 18b), which engage behind latching returns (19a, 19b) of the refrigerated product container (3) in the assembled position of the intermediate housing component (7).
12. Refrigerator according to one of claims 1 to 11, characterised in that the intermediate housing component (7) comprises at least one guide segment, in particular at least one web (20), which, in cooperation with a counter guide segment, in particular a guide groove (21) on the refrigerated product container (3), prespecifies an assembly insertion direction.
13. Refrigerator according to one of claims 10 to 12, characterised in that the latching connection is embodied to prespecify an assembly direction for the preassembled intermediate housing component (7), which differs from a load direction developing due to the weight of the refrigerated product container (3) and/or the refrigerated product supported therein, especially to prespecify an assembly direction which runs at right angles to the load direction.

Images