EP2609384B1 - 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 having a front opening closable by a door leaf for removing and / or loading refrigerated goods, and a pull-out refrigerated goods, and storage means for extendable storage of the refrigerated goods in 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.

The JP 09280727 A describes a pull-out container having at its rear end two rollers. Two other rollers are arranged on a front side of a bottom of a refrigerator. The two rollers of the rear end of the pull-out container, together with the two other rollers of the front side of the bottom of the refrigerator, the bearing means for extending the pull-out container.

A refrigeration appliance according to the preamble of claim 1 is made WO 03/049577 known.

The object of the invention is to provide a refrigeration device in which a refrigerated goods container can be easily pulled or pushed out of an inner container by a cost-effective storage means.

A refrigeration appliance is understood in particular to be a household refrigeration appliance, that is to say a refrigeration appliance used for household purposes or possibly even in the gastronomy sector, and in particular for storing food and / or beverages 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 according to claim 1.

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.

With extendable or insertable storage is particularly understood that the refrigerated goods is stored within a horizontally oriented plane, in particular drawer-like over a front opening with the door open the refrigerator is pulled forward and back into the refrigerator or freezer is completely inserted, so that the door leaf can close the opening of the refrigerator again.

According to the invention, the at least one refrigerated goods container instead of telescopically extendable, permanently installed metal rails or instead of a mere sliding adjustment, in which a bottom of the refrigerated goods slips directly on a bottom of the inner container, by a simultaneously taking place or cooperating sliding friction and rolling friction by the bearing means according to the invention extendable or insertable stored.

The bearing means has at least one rotatable, in particular mounted on a bottom of the inner container roller. In one embodiment, only a single Roller, for example, be stored in a front, in particular central region of the inner container. The single roller can be combined with, for example, two sliding bearing points arranged at a rear region of the refrigerated goods container, which are arranged at a considerable distance from one another, in particular at two rear corner regions of the bottom of the refrigerated goods container. This results in a three-point support for the refrigerated goods on the bottom of the inner container.

Typically, a four-point support can be realized by providing a roller, i.e. a roller, at each of two front areas of the inner container. a total of two rollers per refrigerated goods containers are provided, each with a sliding bearing at the two rear corners of the bottom of the refrigerated goods, ie. cooperate with a total of two plain bearings per refrigerated goods.

In an embodiment according to the invention, two rollers are rotatably mounted on opposite sides on a bottom of the inner container at the front region of the inner container.

In that regard, in an embodiment according to the invention, two rollers may be rotatably mounted on opposite lateral sides of the inner container at the front region of the inner container. On opposite lateral sides may mean that the two rollers are arranged at the bottom of the inner container at a distance from each other, which is only slightly smaller than the width of the refrigerated goods container. This means that the rollers with their running surfaces extend very well from the bottom of the inner container projecting upward in the direction of the bottom of the refrigerated goods, but the rollers are arranged near the lateral side walls of the refrigerated goods.

The same applies to the mating surfaces, which can be so far attached or formed in an embodiment of the present invention at the front area of the bottom of the refrigerated goods on opposite lateral sides of the refrigerated goods. On opposite lateral sides can also mean that the two mating surfaces are arranged at the bottom of the refrigerated goods at a distance from each other, which is only slightly smaller than the width of the refrigerated goods. This means that the mating surfaces are very well from the bottom of the refrigerated goods projecting downward in the direction of the bottom of the inner container, but the mating surfaces are arranged near the lateral side walls of the refrigerated goods.

The inner container may generally have an adjusting device, on which the at least one roller, in particular the two rollers are mounted displaceably in the extension direction. The roller may for example be arranged between two vertically oriented side wall portions of the bottom of the inner container. The two vertically oriented side wall portions may have a number of aligned holes. The holes may be spaced from each other, in particular at regular intervals from each other and the series of holes thereby extend in the extension direction. The roller can then be rotatably mounted in different positions in the extension direction of the inner container, that an axle pin is inserted through each two aligned holes of the two vertically oriented side wall sections, the axle pin also penetrates a hub of the roller. The roller can be rotatably supported so far by means of the axle pin. For example, the axle pin rotatably inserted into the holes and the hub of the roller have a slightly larger diameter than the diameter of the axle pin, so that the roller is rotatably mounted rotatably mounted on the fixed axle. Alternatively, the hub or the roller can be firmly mounted, for example in the manner of a slight press fit, on the axle pin and the roller can thereby be rotatably mounted on the inner container so that the axle pins can rotate in the holes.

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, according to the invention, cause the refrigerated goods container to be pulled out or pushed out of the inner container, even with blocked rollers and / or stiff rollers, with little effort. According to the invention, a fixed roller can thus form a further plain bearing point.

In all embodiments according to the invention, two, in particular separate sliding bearing points can be arranged on opposite sides of the refrigerated goods container at the rear region of the refrigerated goods container. The sliding bearing points can interact with the counter sliding bearing points of the inner container. The sliding bearing points can thus be mounted on the same gauge as the counter-sliding bearing points on the bottom of the inner container.

The sliding bearing points may have a sliding surface made 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). The sliding bearing points may generally have the same sliding friction coefficient as the counter-sliding bearing points and / or the running surfaces of the rollers.

In all embodiments according to the invention, the at least one, in particular two plain bearing points with the refrigerated goods container, in particular with a bottom of the refrigerated goods container as separate components locked, screwed, glued or integrally formed. In a latching mounting of the sliding bearing points at the bottom of the refrigerated goods, the sliding bearing points may be formed on, for example, strip-like inserts having locking means which cooperate with corresponding counter-locking means at the bottom of the refrigerated goods. The sliding bearing points can lock by pressing the sliding bearing points on the floor with the refrigerated goods. Alternatively, the sliding bearing points, which may be formed, for example, on strip-like inserts, have bores by means of which the plain bearing points can be screwed by screws directly to the bottom of the refrigerated goods container. In another embodiment, the sliding bearing points, which may be formed, for example, on strip-like inserts, have an adhesive surface with which the sliding bearing points can be glued to the bottom of the refrigerated goods container. Alternatively, the plain bearings can also be molded directly into a wall of the refrigerated goods or be formed by the material of the wall of the refrigerated goods.

The at least one, in particular two sliding bearing points can form a side guide rail in cooperation with side walls or ribs of the inner container. In addition to the storage means according to the invention, as described, the refrigerated goods containers according to the invention have guides which can prevent or reduce tilting and / or tilting of the refrigerated goods container during extraction and / or insertion. The at least one, in particular two sliding bearing points can in this respect form a side guide rail in cooperation with side walls or ribs of the inner container. The lateral guide rail guides the refrigerated goods container in the extension direction or insertion direction.

In the embodiment with side guide rail, the at least one, in particular two plain bearing points each have a groove in which a spring rib of the inner container engages. In this case, the spring rib from the bottom of the inner container projecting upwards and thus engage in the groove. The groove may be attached to the bottom of the refrigerated goods container or formed on the bottom of the refrigerated goods container. For example, the groove can be formed in the wall of the refrigerated goods container.

In an alternative embodiment with side guide rail, the side walls or ribs of the inner container may each have a groove in which engages the at least one, in particular two sliding bearing points or one spring rib of the sliding bearing points.

The side guide rail may have a stop which determines a maximum insertion depth of the refrigerated goods. Alternatively, a separate stop, for example, be provided on a rear wall of the inner container. The stop can serve to keep the inserted refrigerated goods at a defined distance from the rear wall of the inner container. Alternatively or additionally, the stop can serve to decelerate the speed of a refrigerated goods container running in, so that no unwanted noises are generated and / or refrigerated goods stored, in particular shock-sensitive refrigerated goods are not damaged by a jerky impact of the refrigerated goods on the rear wall of the inner container.

Alternatively or additionally, the inner container, in particular on its inner side walls, have at least one retaining rib, which determines a maximum extension width of the refrigerated goods container. The retaining rib can act analogous to the stop, where in this effect not when inserting the refrigerated goods, but when pulling out of the refrigerated goods acts. The retaining rib can thus serve to protect the extended Kühlgutbehälter from falling out completely. Alternatively or additionally, the retaining rib can be used to decelerate the speed of an expired refrigerated goods, so that no unwanted noise and / or refrigerated goods stored, especially shock-sensitive refrigerated goods are not damaged by a jerky impact of refrigerated goods at the retaining rib of the inner container.

In other words, the invention may relate to a domestic refrigerator, with a shell body, i. a refrigerated goods container which can be easily removed from a designated container, such as a freezer or refrigerator compartment of the household refrigerator, pull out. The storage means according to the invention may be used, for example, as additional elements attached to conventional shell bodies, i. Refrigerated goods container attached and / or attached to an inner container of the household refrigerator. An attachment or attachment can be done for example by snap connections, clamp connections and / or screw.

In addition, guide surfaces can be provided, in particular molded, on the refrigerated goods container. The refrigerated goods can be made of plastic, for example, polystyrene (PS) or polypropylene (PP).

By means of the storage means according to the invention, an extraction system for refrigerated goods can be realized, which can be very easily run and operate the refrigerated goods in the household refrigerator. In accordance with the invention, the refrigerated goods container can be pulled out and pushed in by means of the storage means under a combination of rolling friction and sliding friction.

On the shell body, ie the refrigerated goods can each side, for example, in the rear part of a sliding element, ie a sliding bearing surface are attached. The sliding elements can be rotatably mounted on the shell body, ie the refrigerated goods container, by means of a snap, clamping or screw connection. The sliding elements can be made of plastic. The sliding elements may in particular be made of a plastic which has high sliding properties. So can the Sliding elements made of polyoxymethylene (POM) or another material with similar properties.

In addition to the refrigerated goods container side sliding elements rolling stock, i. Rollers are provided or attached. The rolling bearings, i. Like the sliding elements, castors can be made of polyoxymethylene (POM) or another material with similar good sliding properties. The rolling bearings, i. Casters can be snapped in the inner container, rotatably screwed on or stored on foamed bearing blocks. In their main function, the rolling bearings, i. Casters as roller bearings for the shell body, i. for the refrigerated goods container. It may additionally serve as a guide element for the shell body, i. be used for the refrigerated goods and even as a stop, if necessary. Stopper to prevent, for example, in a fully inserted position, a bumping of the shell body or the refrigerated goods at an inner rear side of the inner container. Against a tilt in the extended state can above the shell body, i. the chilled goods container may be provided with a rib in the inner container, which engages over the shell body or the refrigerated goods container from above at the top. In addition, the rib can be used to store a refrigerated goods tray, such as a glass plate thereon.

The combination of rolling friction and sliding friction proves to be very good as extract support for trays or containers in household refrigerators. The positioning of the wheel or wheels, i. the rollers on the inner container and the attached plain bearings, so that a very good coordination of the rollers and the sliding elements is possible. The mounted in the inner container rollers ensure optimum power transmission of the shell to the inner container and the additional mounted sliding bearing points on the shell body or the refrigerated goods for a good extendability.

It can be advantageous that in addition to the simpler rolling friction and sliding properties are present, which can be realized from the material of the inner container and the shell material. Compared to today's pull-out technology, this variant is a relatively inexpensive solution.

An exemplary embodiment of the invention is based on the Figures 1 to 3b described. From the detailed description of this specific embodiment, there are also other general features and advantages of the present invention.

Fig. 1

eine perspektivische Schnittansicht aus einem Haushaltskältegeräts mit einem erfindungsgemäßen Kühlgutbehälter und Innenbehälter;

Fig. 2a

eine perspektivische Schnittansicht aus dem Kühlgutbehälter gemäß Fig. 1 in einem hinteren Bereich des Kühlgutbehälterbodens mit einer erfindungsgemäßen Gleitlagerstelle;

Fig. 2b

eine perspektivische Schnittansicht aus dem Innenbehälter gemäß Fig. 1 im Bereich des Bodens des Innenbehälter mit einer erfindungsgemäßen Laufrolle;

Fig. 3a

eine schematische Darstellung des erfindungsgemäßen Kühlgutbehälters in einer eingeschobenen Stellung;

Fig. 3b

eine schematische Darstellung des erfindungsgemäßen Kühlgutbehälters in einer ausgezogenen Stellung.

Show it:

Fig. 1

a perspective sectional view of a household refrigerating appliance with a refrigerated goods container according to the invention and inner container;

Fig. 2a

a perspective sectional view of the refrigerated goods according to Fig. 1 in a rear region of the refrigerated goods container floor with a slide bearing point according to the invention;

Fig. 2b

a perspective sectional view of the inner container according to Fig. 1 in the region of the bottom of the inner container with a roller according to the invention;

Fig. 3a

a schematic representation of the refrigerated goods according to the invention in an inserted position;

Fig. 3b

a schematic representation of the refrigerated goods according to the invention in an extended position.

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 a rear region of the refrigerated goods 3 arranged sliding bearing 6a and 6b, which are supported on the counter-sliding bearing surface 7a and 7b on the inner container 2. The bearing means 5 have in the illustrated embodiment further on a front side region of the inner container 2, in particular arranged on the bottom of the inner container 2 rollers 8a and 8b, the Roll along a mating surface 9a and 9b on refrigerated goods 3 in the extension direction. In the illustrated embodiment, two rollers 8a and 8b are rotatably mounted on opposite sides of the inner container 2 at the front 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 formed or tightened in the embodiment. 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.

As in Fig. 2a shown, a slide bearing 6a and 6b are arranged on the left side and the right side in a rear area at the bottom of the refrigerated goods container 3. The sliding bearing 6a and 6b can be locked to the bottom of the refrigerated goods 3 as separate components, screwed, glued, or integrally formed. The sliding bearing points 6a, 6b at the bottom of the refrigerated goods container 3 are corresponding counter sliding bearing surfaces 7a, 7b (FIG. Fig. 3a, 3b ) of the inner container 2 assigned. The refrigerated goods container 3 slides in the region of its rear bottom half by means of its sliding bearing points 6a, 6b on the counter sliding bearing surfaces 7a, 7b of the inner container. 2

The inner container 2 has in the illustrated embodiment of Fig. 2b at the bottom of one or more adjusting devices 10, on which the at least one roller 8a, 8b, in particular the two rollers 8a and 8b are mounted displaceably in the extension direction. The adjusting device 10 may have a plurality of holes 11 for this purpose. The holes 11 are arranged uniformly spaced from each other in the illustrated embodiment and extend along a direction of extension of the refrigerated goods 3. Optionally, in one of the holes 11, an axle 12 are inserted. The axle pin 12 penetrates a hub of the roller 8a, 8b and thus rotatably supports the roller 8a, 8b rotatably on the inner container 2. To offset the position of the roller 8a, 8b, the axle pin 12 can be pulled out. The roller 8a, 8b is then brought in a desired other position in alignment with another bore 11 and the axle pin 12 inserted there again, the axle again here the hub of the roller 8a, 8b penetrates and so the roller 8a, 8b rotatable superimposed on the inner container 2. At the bottom of the inner container 2 in the illustrated embodiment also has a side guide rail 14 in the vicinity the roller 8a, 8b attached. The side guide rail 14 may cooperate with a groove, not shown, at a bottom of the refrigerated goods container 3.

As in Fig. 3a and Fig. 3b 2, sliding bearing points 7a, 7b can be arranged on a rear region of the inner container 2. Two counter-sliding bearing surfaces 7 a, 7 b may be provided on opposite sides of the inner container 2. The counter-sliding bearing surfaces 7a, 7b can be latched, screwed, glued, foamed or integrally formed with the bottom of the inner container 2 as separate components. The counter-sliding bearing surfaces 7a, 7b of the inner container 2 are associated with corresponding sliding bearing points 6a, 6b at the bottom of the refrigerated goods container 3. The refrigerated goods container 3 slides in the region of its rear bottom half by means of its sliding bearing points 6a, 6b on the Gegengleitlagerflächen 7a, 7b of the inner container 2. At a drawer front 16 of the refrigerated goods 3, a handle 17 is arranged in the embodiment.

Claims (11)

1. Refrigeration appliance, especially domestic refrigeration appliance having an inner container (2) with a front-side opening (4) which can be closed by a door leaf for loading or unloading refrigerated goods, and a pull-out refrigerated goods container (3), as well as support means (5) for the pull-out support of the refrigerated goods container (3) in the inner container (2), wherein the support means (5) has at least one roller (8a, 8b) disposed on a front-side region of the inner container (2), on which roller (8a, 8b) an opposing running surface (9a, 9b) of the refrigerated goods container (3) rolls out in the pull-out direction, and has at least one slide bearing point (6a, 6b) disposed on a rear region of the refrigerated goods container (3), which is supported on an opposing slide bearing surface (7a, 7b) on the inner container (2), characterised in that on the front-side region of the inner container (2) two rollers (8a, 8b) are rotatably mounted on opposing sides on a base of the inner container (2).
2. Refrigeration appliance according to claim 1, characterised in that the inner container (2) has an adjustment device (10), on which the at least one roller (8a, 8b), especially the two rollers (8a, 8b), are displaceably mounted in the pull-out direction.
3. Refrigeration appliance according to one of claims 1 or 2, characterised in that the rollers (8a, 8b) have a running surface made of a thermoplastic, especially with a coefficient of sliding friction between 0.3 and 0.5 µ, especially between 0.38 and 0.42 µ, especially made of polyoxymethylene (POM).
4. Refrigeration appliance according to one of claims 1 to 3, characterised in that on the rear region of the refrigerated goods container (3) two, especially separate slide bearing points (6a, 6b) are disposed on opposing sides of the refrigerated goods container (3).
5. Refrigeration appliance according claim 4, characterised in that the slide bearing points (6a, 6b) have a sliding surface made of a thermoplastic, especially with a coefficient of sliding friction between 0.3 and 0.5 µ, especially between 0.38 and 0.42 µ, especially made of polyoxymethylene (POM).
6. Refrigeration appliance according to one of claims 1 to 5, characterised in that the at least one, especially two slide bearing points (6a, 6b) are latched, screwed or glued to the refrigerated goods container (3), especially to a base of the refrigerated goods container (3), as separate components, or formed as a single piece therewith.
7. Refrigeration appliance according to one of claims 1 to 6, characterised in that the at least one, especially two slide bearing points (6a, 6b) form a lateral guide rail (14) by interacting with side walls or ribs of the inner container (2).
8. Refrigeration appliance according to claim 7, characterised in that the at least one, especially two slide bearing points (6a, 6b) each have a groove, in which a spring rib of the inner container (2) engages.
9. Refrigeration appliance according to claim 7, characterised in that the side walls or ribs of the inner container (2) each have a groove, into which the at least one, especially two slide bearing points (6a, 6b) or one spring rib of the slide bearing points (6a, 6b) of the refrigerated goods container (3) engages in each case.
10. Refrigeration appliance according to one of claims 7 to 9, characterised in that the lateral guide rail (14) has a limit stop which determines a maximum insertion depth of the refrigerated goods container (3).
11. Refrigeration appliance according to one of claims 1 to 10, characterised in that the inner container (2), especially on its inner side walls, has at least one retaining rib which determines a maximum pull-out range of the refrigerated goods container (3).

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