EP2609387A2

EP2609387A2 - Refrigerator comprising a pull-out container for refrigeration articles

Info

Publication number: EP2609387A2
Application number: EP11743815.0A
Authority: EP
Inventors: Stefan Deissler; Jürgen FINK
Original assignee: BSH Bosch und Siemens Hausgeraete GmbH
Current assignee: BSH Hausgeraete GmbH
Priority date: 2010-08-23
Filing date: 2011-08-10
Publication date: 2013-07-03
Anticipated expiration: 2031-08-10
Also published as: EP2609387B1; WO2012025384A2; DE102010039648A1; WO2012025384A3; CN103189700B; CN103189700A

Abstract

The invention relates to a refrigerator, in particular a domestic refrigerator, having an inner container (2) with a front opening (4), which can be closed by a door leaf, for the removal and/or insertion of refrigeration articles, and a pull-out refrigeration article container (3), as well as mounting means (5) for mounting the refrigeration article container (3) in the inner container (2) in a pull-out manner, the mounting means (5) having on opposite sides of the refrigeration article container (3) in each case, in a rear region of the refrigeration article container (3), a roller (8a, 8b) and, in a central and/or front region of the refrigeration article container (3), at least one slide bearing point (6a, 6b, 6c), the roller (8a, 8b) and the at least one slide bearing point (6a, 6b, 6c) being supported on at least one counter bearing face (14) of the inner container (2).

Description

Refrigerating appliance with an extendable refrigerated goods container

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.

DE 92 06 166 IM describes a drawer slide, preferably for built-in or freezer cabinets, 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 portion of the guide rails on the side walls of the body part coaxially two rollers are mounted which are supported on the lateral edge areas of the bottom of the drawer.

JP 09280727 A describes a pull-out container which has two rollers at its rear end. 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 of the bottom of the refrigerator, the bearing means for extending the pull-out container.

The object of the invention is to provide a refrigeration device in which a refrigerated goods container by an inexpensive storage means of an inner container smoothly

can be pulled out or pushed in.

Under a refrigeration device is in particular a household refrigeration appliance understood, ie a refrigeration appliance for household management in households or possibly in the

Catering area is used, and in particular serves to store food and / or drinks in household quantities at certain temperatures, such as a refrigerator, a freezer or a Kühlgefrierkombination. The object is achieved by a refrigeration device, in particular

Domestic refrigerating 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 extendable storage of Kühlgutbehälters in the inner container, wherein the storage means on opposite sides of the refrigerated goods each in at least one sliding bearing point in a central region and / or front region of the refrigerated goods container, wherein the roller and the at least one sliding bearing point are supported on at least one abutment surface of the inner container.

The refrigerated goods can be stored for example in a cold room in which

Food 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 by means of telescopically extendable, fixed metal rails or instead of a mere sliding

Einstellens, in which a bottom of the refrigerated goods slid directly on a bottom of the inner container along, by a simultaneously occurring or

co-operating sliding friction and rolling friction by the inventive

Bearing means extendable or insertable stored.

A special feature of the invention may be that at least one

Roller and at least one sliding bearing point together on the refrigerated goods container be provided or be used on it. The at least one roller can in particular in a rear area, ie in close proximity to a

Rear wall of the inner container to be stored on 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 containers rollers may 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 slightly lifts the refrigerated goods container when pulling out, with the result that front bearing surfaces, ie the sliding bearing points of the refrigerated goods are relieved and located in the rear of the refrigerated goods container at least one roller is additionally charged. Since a rolling friction of the roller is in principle less than a sliding friction of the front bearing surfaces, i. the sliding bearing points, is reduced by the arrangement of the rollers in a rear portion of the refrigerated goods the total required force to pull out the refrigerated goods.

In one embodiment of the invention, two rollers on opposite side walls of the

Refrigerated goods be rotatably mounted. 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.

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, at the center and / or front region of the refrigerated goods container on opposite side walls of the Refrigerated goods each two or more, in particular three separate plain bearings to be arranged. The two or more, in particular three separate sliding bearing points can be spaced apart from one another, in particular evenly spaced from one another, along a depth direction on the refrigerated goods container. By means of the two or more, in particular three separate plain bearings, the refrigerated goods can be supported not only in a front region, but also in a central depth region of the refrigerated goods.

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 of the invention, the sliding bearing points with the

Refrigerated goods container, in particular latched with a side wall of the refrigerated goods as separate components, screwed, glued or integrally formed. In a latching mounting of the sliding bearing points on opposite sides of

Refrigerated goods container or laterally projecting ribs of the refrigerated goods container, the sliding bearing points may have locking means, which correspond with

Counter-locking means cooperate on Kühlgutbehälter. The sliding bearing points can by pressing the sliding bearing points on laterally projecting ribs of the

Lock the refrigerated goods container. Alternatively, the sliding bearing points, which may be formed, for example, on inserts have holes, by means of which the

Sliding bearing points can be bolted directly to the refrigerated goods container by means of screws. In another embodiment, the sliding bearing a

Have Adhesivfläche with which the sliding bearing points can be adhered to the refrigerated goods. Alternatively, the sliding bearings can also be molded directly into a wall of the refrigerated goods container, i. be formed.

In all embodiments according to the invention, the sliding bearing points and / or the rollers may be arranged on webs projecting laterally from the side walls of the refrigerated goods container. Are the plain bearings and / or the rollers as separate Holding members formed so they can easily on the side

projecting webs are snapped or snapped or clamped.

In general, the plain bearings and / or the rollers so on separate

Attached holding members. Depending on the size, in particular depth of refrigerated goods glide bearings and / or rollers of the same type and / or size can be mounted on different refrigerated goods in various numbers. Thus, for example, only one or two sliding bearings per side can be provided in refrigerated goods containers, for example, half the depth of the refrigerator. For refrigerated goods containers large or full depth, for example, three or more sliding bearings per page can be provided. The three or more sliding bearing points can also be optionally attached to the laterally projecting webs at different variable intervals, in particular clamped. In the embodiment with holding components, each roller can be rotatably mounted in a separate holding component, which has a latching means or clamping means for its attachment to the refrigerated goods container and / or a web projecting from the side walls of 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.

In an alternative or supplementary design with holding components, each

Sliding bearing point on a separate support member having a locking means or clamping means for its attachment to the refrigerated goods and / or a projecting from the side walls of the refrigerated goods web, be attached.

The sliding bearing can be integrally formed with the support member. In addition to the storage means according to the invention, as described, the refrigerated goods containers according to the invention can 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

Gleitlagerstellen can insofar in conjunction with side walls or ribs of the Refrigerated goods container form a side guide rail. The lateral guide rail guides the refrigerated goods container in the extension direction or insertion direction.

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 containers are attached. An attachment or attachment can

for example, by snap connections, clamp connections and / or

Screw connections take place.

The refrigerated goods can be made of plastic, for example, polystyrene (PS) or polypropylene (PP). At this refrigerated goods guide surfaces can be attached or molded. The guide surfaces may ribs

have opposite sides of the refrigerated goods, where at least one sliding bearing and a roller is mounted. These elements may be attached as additional elements clamped on dedicated fasteners or ribs.

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, i. The refrigerated goods can, for example, in the rear part laterally a sliding element, i. a sliding bearing surface are attached. The

Sliding elements may be rotatable on the shell body by means of a snap, clamp or screw connection, i. be stored in the refrigerated goods. 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. At the rear of the shell or the Kühlgutbehälters may be a wheel, ie a roller befindeen. This wheel can be made of polyoxymethylene (POM). The wheel or the wheels make it easier to pull out the shell, since an otherwise existing sliding friction is converted into rolling friction. Furthermore, will

According to the invention, the further poor sliding friction, by additional elements, i. Slide bearings, which can be plugged in particular, lowered. These elements, i. Sliding bearing points can be variably executed from a bar to short, punctual elements.

The sliding properties, which are usually made of the material of the Innerlinner, i. of the inner container and the bowls are not as good as those of

Polyoxymethylene (POM) with polystyrene (PS). These properties will be

According to the invention also improved by at least one rear wheel or roller.

The sliders may be used in addition to roller bearings, i. Rollers are provided or attached to the refrigerated goods container. 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 on the refrigerated goods container, rotatably screwed on or stored on bearing blocks. In their main function, the rolling bearings, i. Casters as roller bearings for the shell body, i. for the refrigerated goods container. The rollers 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

Extract support for trays or containers in household refrigerators. It is also the positioning of the wheel or the wheels, ie the rollers on the refrigerated goods and the attached plain bearings on the refrigerated goods variable, so that a very good coordination of the rollers and the sliding elements is possible. It may be advantageous that in addition to the simpler rolling friction and sliding properties are present, which consists of the material of the inner container and the material of the sliding bearing of the

Refrigerated goods and / or the rollers of the refrigerated goods can be realized. Compared to today's pull-out technology, this variant is a relatively inexpensive solution.

Exemplary embodiments of the invention are described with reference to FIGS. 1 to 4b. From the detailed description of these specific embodiments, there are also other general features and advantages of the present invention.

a perspective sectional view of a household refrigerator with a refrigerated goods according to the invention; a partial perspective view of a varied to Fig. 1 refrigerated goods in the region of a sliding bearing and roller according to the invention;

FIG. 3 shows a side view of the refrigerated goods container according to FIG. 2; FIG. 4a is a perspective view of a roller according to the invention in

Unique;

Fig. 4b is a perspective view of a sliding bearing according to the invention in isolation.

A section of a refrigeration device 1 shown by way of example in FIG. 1 shows a lower section of an inner container 2 in a cutaway view, in which a refrigerated goods container 3 mounted extendible in the inner container 2 is arranged. Of the

Inner container 2 has a front-side closable opening 4 for removal and / or inserting refrigerated goods. The refrigerated goods 3 is extendable in the

Inner container 2 stored. For this purpose, bearing means 5 are provided.

In the illustrated embodiment, at the rear region of the

Refrigerated goods container 3 two rollers 8a and 8b rotatably mounted on opposite sides of the refrigerated goods container 3. 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 the refrigerated goods container 3 from above at lateral edges of the

To lead refrigerated goods 3. On an upper side of the rib 13, a storage surface or glass plate, not shown, can be placed.

The bearing means 5 have in the illustrated embodiment of the two

opposite side walls of the refrigerated goods 3 each arranged

Plain bearing points 6a, 6b and 6c, which are combined with a roller 8. The rollers 8 are arranged on a rear region of the refrigerated goods container 3.

An inventive bearing means 5 on the one side wall of the refrigerated goods container 3 is shown in more detail in Fig. 2. On the side wall of the refrigerated goods container 3, a web 7 is arranged, which projects laterally outwardly from a plane of the side wall. The web 7 is formed in the illustrated embodiment as an elongated rod with a rectangular cross-section. In the exemplary embodiment, the web 7 is integral with the

Side wall or the refrigerated goods container 3 is formed. For stiffening the outwardly laterally projecting web 7 a plurality of stiffening ribs 9a to 9f are provided. The stiffening ribs 9a to 9f have in the illustrated embodiment, a triangular contour and connect the side wall of the refrigerated goods 3 with an upwardly facing surface of the web. 7

Three slide bearings 6a, 6b, 6c and a roller 8 are attached to the web 7 by way of example. The plain bearings 6a, 6b, 6c and the rollers 8a, 8b can

evenly spaced over the length of the web 7 distribute. The pulley 8a, 8b is in a back, i.e. rear portion of the refrigerated goods container 3 is arranged. The

Roller 8a, 8b is rotatably mounted in the embodiment in a holding member 10a. The holding member 10 a is attached to a receptacle 1 1 on the web 7 of the refrigerated goods 3 attached. The sliding bearing points 6a, 6b, 6c also each have a holding component 10b, 10c, 10d, which is fastened in each case to a recess 12a, 12b, 12c of the web 7.

3, the refrigerated goods container 3 is again shown in a side view, together with an abutment surface 14, on which both the plain bearings 6a, 6b, 6c and the rollers 8a, 8b are supported. The abutment surface 14 can optionally on the

Inner container 2 integrally formed or attached as a separate component. In a modification of the embodiment according to FIG. 1, the refrigerated goods container 3 according to FIG. 3 has a handle 15 on each of the two opposite side walls. The handle 15 may be formed by a recess in the side wall of the refrigerated goods container 3.

Fig. 4a shows an exemplary embodiment of a roller 8a, 8b. The roller 8a, 8b has a roller body 16. The roller body 16 is rotatably supported in a roller housing 18 by means of an axle 17. For this purpose, the roller housing 18 two

have opposite walls 19 a, 19 b, each of which has a bore 20 each. The diameter of the bore 20 substantially corresponds to the diameter of the axis 17. Here, optionally, the diameter of the axis 17 in the manner of a

Press fit to be slightly larger than the diameter of the bore 20, so that the axis 17 is rotatably mounted in the roller housing 18. In this case, the roller body 16 has a hub which is slightly larger in order to form a clearance fit

Diameter than the axis 17, so that the roller body 16 on the

fixed axis 17 is rotatably mounted. Alternatively, the diameter of the axle

17 be slightly larger in the manner of a press fit, as the diameter of the hub, so that the axis 17 is rotatably mounted in the roller body 16. The axis 17 thus rotates together with the roller body 16. optionally, the axis 17 may also be formed integrally with the roller body 16, for example as a one-piece plastic injection molded part. In this embodiment, the holes 20 in the

opposite walls 19a, 19b of the roller housing 18 to form a

Backlash a slightly larger diameter than the axis 17, so that the axis 17 is rotatably supported in the roller housing 18 together with the roller body 16.

The roller housing 18 is part of the holding member 10a, which next to the roller housing

18 also has a holding portion 21 a. The holding portion 21a is in illustrated embodiment designed as a latching hook having a vertical support wall portion 22 and a horizontal support wall portion 23, and a downwardly facing latching projection 24. The latching projection 24 is designed to latch into a recess on the web 7 of the refrigerated goods container 3. By means of the latching projection 24 or of the holding component 10a, the roller body 16 or the roller 8a, 8b is rotatably mounted on the web 7 of the refrigerated goods container 3.

As shown by way of example in FIG. 4b, each one may be analogous to FIG. 4a

Slide bearing 6a, 6b, 6c have a same-acting holding member 10b, 10c, 10d. Each sliding bearing 6a, 6b, 6c may have an arcuately curved sliding surface 25, which causes a line contact on the abutment surface 14 of the inner container 2. At a top of the sliding bearing 6a, 6b, 6c, a holding portion 21 b, 21c, 21 d may connect to which in the illustrated embodiment, a latching hook is formed having a vertical support wall portion 26 and a horizontal support wall portion 27, and a downwardly facing latching projection 28 has. The latching projection 28 is formed in a recess on the web 7 of the

To lock refrigerated goods 3. By means of the latching projection 28 or of the holding component 10b, 10c, 10d, the sliding surfaces 25 and the sliding bearing points 6a, 6b, 6c are fastened to the web 7 of the refrigerated goods container 3.

Claims

1. Refrigeration appliance, in particular domestic refrigeration appliance, comprising an inner container (2) with a front side, closable by a door leaf opening (4) for

Removing and / or inserting refrigerated goods, and an extendable

Refrigerated goods container (3), as well as storage means (5) for extractable storage of the

Refrigerated goods container (3) in the inner container (2), characterized in that the bearing means (5) on opposite sides of the refrigerated goods container (3) in each case in a rear region of the refrigerated goods container (3) a roller (8a, 8b) and in a middle and / or front region of the refrigerated goods container (3) has at least one sliding bearing (6a, 6b, 6c), wherein the roller (8a, 8b) and the at least one sliding bearing (6a, 6b, 6c) at least one

Support abutment surface (14) of the inner container (2).

2. Refrigerating appliance according to claim 1, characterized in that at the rear region of the refrigerated goods container (3) two rollers (8a, 8b) are rotatably mounted on opposite side walls of the refrigerated goods container (3).

3. Refrigerating appliance according to claim 1 or 2, characterized in that the rollers (8a, 8b) a running surface of a thermoplastic material, in particular with a sliding coefficient of friction between 0.3 and 0.5 μ, in particular between 0.38 and 0 , 42 μ, in particular of polyoxymethylene (POM).

4. Refrigerating appliance according to one of claims 1 to 3, characterized in that at the center and / or front region of the refrigerated goods container (3)

two or more, in particular three separate sliding bearing points (6a, 6b, 6c) are arranged in each case opposite side walls of the refrigerated goods container (3).

5. Refrigerating appliance according to claim 4, characterized in that the sliding bearing points (6a, 6b, 6c) 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).

6. Refrigerating appliance according to one of claims 1 to 5, characterized in that the sliding bearing points (6a, 6b, 6c) with the refrigerated goods container (3), in particular with a side wall of the refrigerated goods container (3) locked as separate components, screwed, glued or in one piece are formed.

7. Refrigerating appliance according to one of claims 1 to 6, characterized in that the sliding bearing points (6a, 6b, 6c) and / or the rollers (8a, 8b) of the

Side walls of the refrigerated goods container (3) laterally projecting webs (7) are arranged.

8. Refrigerating appliance according to one of claims 1 to 7, characterized in that the sliding bearing points (6a, 6b, 6c) and / or the rollers (8a, 8b) on separate holding components (10a, 10b, 10c, 10d) are attached.

9. Refrigerating appliance according to claim 8, characterized in that each roller (8a, 8b) in a separate holding member (10a) having a locking means (24) or clamping means for its attachment to the refrigerated goods container (3) and / or one of the

Side walls of the refrigerated goods container (3) projecting web (7), is rotatably mounted.

10. Refrigerating appliance according to claim 8 or 9, characterized in that each

Plain bearing point (6a, 6b, 6c) on a separate support member (10b, 10c, 10d), the locking means (28) or clamping means for its attachment to the

Refrigerated goods container (3) and / or one of the side walls of the refrigerated goods container (3) projecting web (7), is attached.

11. Refrigerating appliance according to claim 10, characterized in that the sliding bearing point (6a, 6b, 6c) is formed integrally with the holding member (10b, 10c, 10d).