EP2394114B1 - Household refrigeration device having a receiving chamber - Google Patents

Description

The invention relates to a household refrigerator with at least one receiving space for goods to be cooled according to the preamble of claim 1.

There are both built-in refrigerators and / or freezers and stand alone refrigerators and / or freezers, which are all summarized here under the term domestic refrigeration appliance, with one or more receiving spaces for good to be cooled known. Depending on the requirement, different operating temperatures up to a deep-freezing of the material to be stored therein may be provided for such receiving spaces. The receiving spaces often have comparatively thin walls for efficient and inexpensive mass production, which are produced in a deep-drawing process from a flat semi-finished product. This already limits the material thickness of the walls. Their strengths are typically about 0.6 to 2.5 millimeters. Nevertheless, to be supported in through openings structures of these walls holding parts, on the other hand in the interior shelves or the like to be loaded with heavy goods to be kept subdivisions or serve as holders for a temperature sensor, a thermostat, lighting, parts of a controller or the like. The latter attachments are often referred to as RLK for controller-light combination.

It is also known, the retaining part on the one hand over the edge region of the opening structure engages behind and thereby each other "back to back" oppositely oriented hooks to ensure that thereby a tensile force acts outward towards the wall, and on the other hand, the holding part via spring force with a Force component in the receiving space against the pulling direction of the hook parts to apply force to achieve in this way a play-free clamping support of the holding part in the wall.

Due to the deep-drawing process in the production of the walls, however, they have a very fluctuating thickness even over short distances, for example by a factor of 3. Thus, wall thicknesses of about 0.8 millimeters can be adjacent to those of about 2.2 millimeters over a few centimeters , It is often difficult or because of this it is not possible at all to have the holding part, which engages in the opening structure via a first hook, engage with an opposite catch hook behind the edge of the wall and thus secure it. The latching hook can not compensate for the tolerances, since it is optimized with its fixed latching projection to a defined thickness. The holding part is then not used sufficiently close to the wall in order to achieve a gap-free system can. In such a case, it is then often necessary to additionally apply adhesive tape from the back as a seal, which, in the event of subsequent foaming in the space outside the walls, seals against the receiving space and prevents foam from entering into it. However, such an assembly aid means a considerable complication and increase in the cost of production.

The publication DE 10 2004 045 475 A1 shows a component for mounting on a back-foamed wall and a refrigeration device equipped therewith.

The publication DE 10 2006 012 923 A1 shows a component for mounting on a wall and a device housing equipped therewith.

The publication EP 0 892 230 A1 shows a refrigerator with a double-walled housing, wherein on the inner wall of the housing, a component is inserted.

The invention is based on the problem of improving the support of a holding part in a wall of the receiving space in a household refrigeration appliance.

The invention solves this problem by a household refrigerator with the features of claim 1. With regard to advantageous refinements and developments of the subject invention, reference is made to the further claims 2 to 11.

Characterized in that at least two hook parts are provided with respect to the extent of the surface of this supporting wall substantially in the same direction oriented rear engagement surfaces for engaging behind the wall, wherein the rear engagement surfaces in the assembled state in each case a substantially oriented in the same direction component along the surface of the wall and a component substantially perpendicular to have this, both hook parts can vary with respect to their depth of penetration against each other and thus compensate for different strengths of the walls. Under walls are understood not only lateral walls, but also a top, back or bottom of the receiving space. The hook parts can therefore reliably hold the holding part mechanically, without the need for gluing-neither with adhesive tape nor with spray glue-or similar further measures.

Such a holding part can then be used in an advantageous manner with an insertion direction perpendicular and in a direction parallel to the wall in the opening structure, Preferably, until an abutment arranged on the holding part comes into engagement with the opening structure and thereby blocks retraction of the holding part against the orientation of the engagement surfaces. Then, a reliable safeguard against longitudinal displacement of the holding part is achieved, at the same time by the inclination of the rear engagement surfaces and a vertical insertion wall for each particular extract lock is achieved.

In particular, the at least two hook parts and an advantageous embodiment can have a large distance from each other in the longitudinal direction of the holding part and thereby enable a reliable hold of the holding part over its entire extent. It is advantageous if the opening structure of the wall a plurality of insertion openings for the hook parts of the holding part with a Wandungssteg therebetween, which can be engaged behind by a hook part, and also the abutment on these the insertion openings delimiting Wandungssteg is supported.

For a low-force and hook-free assembly, the rear gripping surfaces can advantageously be formed as Abgleitschrägen for the edge region of the opening (s).

A reliable mounting of the hook parts can be achieved, in particular, if the sliding slopes extend over at least five millimeters, in particular at least ten millimeters, along the wall.

If the Abgleitschrägen extending for a purposeful development of the invention over at least five, especially more than ten millimeters, perpendicular to the wall, so that the o. G. large thickness differences are compensated; It is possible even with large tolerances of the deep drawing process reliable engagement behind the wall in the edge region of the aperture structure.

If the holding part is advantageously provided with at least one spring clip which acts in the direction of the receiving space and which can be deformed in different degrees of deformation depending on the wall thickness, a high holding force can be applied in the direction of the receiving space. In particular, the spring clip may be formed circumferentially and simultaneously sealing.

Alternatively it can also be provided a separate circumferential seal, which is also advantageous depending on the wall thickness deformable in different degrees of deformation and thus can form a tolerance compensation for the different wall thicknesses.

For a low-cost production and easy assembly of the or each holding part is in particular integrally formed, for example, as a multi-component injection-molded, which allows different elasticities in adaptation to various loads occurring in the course of the component. For example, the outer seal may have a rubber elasticity in deviation from the body, such as by having a reduced material thickness and / or a different material relative to a body of the holding member, and thereby also allow the spring action and at the same time the behind the wall lying insulation region of the receiving space Shield over the gasket. The one-piece can still be maintained.

Despite the rubber elasticity, the seal can advantageously be formed from a thermoplastic material and thus be injection-molded onto a body holding the seal 'of the holding part. This can form a dimensionally stable subunit of a likewise thermoplastic plastic.

The assembly can also be done manually with just a handle, in particular the striking of the abutment is acoustically perceptible as confirmation of the correct seat.

Other developments of the invention are given in the dependent claims.

Further advantages and features of the invention and its developments will become apparent from the drawing illustrated and described below embodiments of the subject invention.

Fig. 1

ein Haushaltskühlgerät in perspektivischer Ansicht von vorne und oben - ohne Tür - mit einem Aufnahmeraum, der beispielhaft an einer linken seitlichen Wandung mit einer Durchbrechungsstruktur zur Aufnahme eines Halteteils versehen ist, in schematischer Ansicht,

Fig. 2

einen herausgezeichneten Aufnahmeraum, der insgesamt tiefgezogen und an einer rechten seitlichen Wandung mit einem von außen eingesetzten Halteteil versehen ist, in perspektivischer Ansicht von innen,

Fig. 3

einen herausgezeichneten Aufnahmeraum, der insgesamt tiefgezogen und an einer rechten seitlichen Wandung mit einem von außen eingesetzten Halteteil versehen ist, in perspektivischer Ansicht von außen,

Fig. 4

einen Schnitt durch den an der Wandung eingerasteten Halteteil, etwa entlang der Linie IV-IV in Fig. 2,

Fig. 5

eine ähnliche Schnittansicht wie Fig. 4, jedoch eines herkömmlichen Halteteils ohne eine erfindungsgemäße Ausbildung,

Fig. 6

den Halteteil nach Fig.4 in perspektivischer Ansicht, vom Aufnahmeraum aus gesehen,

Fig. 7

den eingesetzten Halteteil nach Fig.4 in Seitenansicht,

Fig. 8

den Halteteil nach Fig.4 in Draufsicht, vom Aufnahmeraum aus gesehen,

Fig. 9

das Halteteil nach Fig.4 in perspektivischer Schnittansicht in seiner in der Durchbrechungsstruktur abgestützten Einsatzstellung.

In the drawing shows:

Fig. 1

a domestic refrigerator in a perspective view from the front and top - without door - with a receiving space, which is provided for example on a left side wall with an opening structure for receiving a holding part, in a schematic view,

Fig. 2

a drawn out receiving space, the overall deep-drawn and provided on a right side wall with a holding part inserted from the outside, in a perspective view from the inside,

Fig. 3

a drawn out receiving space, the overall deep-drawn and provided on a right side wall with a holding part inserted from the outside, in a perspective view from the outside,

Fig. 4

a section through the latched to the wall holding part, approximately along the line IV-IV in Fig. 2 .

Fig. 5

a similar sectional view as Fig. 4 but a conventional holding part without a construction according to the invention,

Fig. 6

the holding part after Figure 4 in perspective view, seen from the recording room,

Fig. 7

the inserted holding part Figure 4 in side view,

Fig. 8

the holding part after Figure 4 in plan view, seen from the receiving room,

Fig. 9

the holding part after Figure 4 in a perspective sectional view in its supported in the opening structure insert position.

Elements with the same function and mode of action are in the FIGS. 1 with 9 each provided with the same reference numerals.

This in FIG. 1 shown household cooling device HK has, for example, exactly one receiving space AR for good to be cooled, even more receiving spaces AR for cooling and / or freezing are possible. These can be closed by one or more door (s) - not shown here.

The receiving space AR is limited to the sides and to the rear and above and below by walls W of a usually deep-drawn plastic part, wherein the walls W of this molding can be provided with through-holes D, as for example in the schematically drawn out receiving space AR after FIG. 2 is recognizable. The narrow space between the walls W and an outer housing G of the household refrigerating appliance HK is usually filled with an insulating material, such as a foam, completely or at least for the most part.

In the opening structures D through the thin walls W (typically wall thicknesses of about 0.6 to 2.5 millimeters) are holding parts HT latching used - for example, as shown here, from the outside - in the assembled state in the receiving space Protruding AR and hold in particular a temperature sensor, a light bulb and / or a thermostat. A support of other parts, such as shelves, by such holding parts HT is possible.

In a wall W, a - as shown here - or a plurality of opening structure (s) D can be provided.

The or each holding part HT engages behind the wall W in the edge region of an opening structure D with at least two hook parts H1, H2 here from outside to inside. At the same time, the holding part HT can be subjected to a force by spring force F with a force component counter to the pulling direction of the hook parts H1; H2, so that a clamping holder of the holding part HT which is free of play with respect to a perpendicular direction to the wall W can be reached.

Like in FIG. 4 is clearly visible, at least two hook portions H1, H2 provided with mutually with respect to the extension of the surface of the wall W in the same direction rear engaging surfaces HF for engaging behind the wall W. These Hintergreifflächen HF have in the assembled state each oriented in the same direction component along the surface of the wall W and a component perpendicular to this, which points in the direction of the wall W.

In addition to these hook parts H1, H2, the holding part HT is provided with an abutment WL, which is so securable in the opening structure D that retraction of the holding part HT is blocked against the orientation of the rear engagement surfaces HF along the wall.

In order to enable this opposite support on the one hand the hook parts H1, H2 and on the other hand, the abutment WL, the opening structure D for the hook parts H1, H2 of the holding part HT a plurality of insertion openings D1, D2, which are separated by a delimiting wall web WS. At this, the abutment WL, which can be formed by a simple stage without engaging latching projection, supportable. Thus, with respect to a longitudinal direction of the wall extension of the holding part HT between the hook parts H1, H2 on the one hand and the abutment WL on the other hand clamped halterbar.

Different wall thicknesses at the insert openings D1, D2 of the two hook parts H1, H2 can be easily compensated with different depth of use, when the rear engagement surfaces HF are formed as Abgleitschrägen for engaging behind the edge region of the insertion openings D1, D2. These may have a large width of, for example, more than one centimeter and thus be stable and have a good handling during assembly.

The Abgleitschrägen over at least five millimeters, better ten or fifteen millimeters, along the wall W extend.

Also perpendicular to the wall W, the Abgleitschrägen can extend over at least five millimeters, in particular ten or fifteen millimeters, perpendicular to the wall W, so as to allow tolerance compensation with respect to the wall thickness.

A lying in the mounted position at the height of the wall W neck portion of the hook parts H1, H2 can be made thin and thereby be provided with a certain elasticity and flexibility.

Despite the changing wall thickness a secure fit is ensured by the fact that the holding part H is provided with at least one in the direction of the wall W effective spring clip F, which is deformable depending on the wall thickness in different degrees of deformation and thereby can compensate for the variations in the wall thickness. This different deformability as compensation for different wall thicknesses is also present on a seal DG of the holding part, which shields the receiving space AR against the insulating material to be introduced in the outer space. The spring clip F can be integral with the holding part HT.

In the plan view of the holding part HT can be seen that here the seal DG is formed by the outermost region of the spring clip F, which forms an elastic edge of the holding part HT. The seal DG completely revolves in the assembly position the opening structure D. In this case, the seal DG is rubber-elastic and deformable depending on the wall thickness in different degrees of deformation, so that at a very thin wall W an outer edge line of the seal DG would come in sealing contact with this. For a larger wall thickness, however, the total here lip-shaped seal DG would be further pushed away with its edge to the outside, so then, for example, a radially inner line for sealing contact with the outside of the wall W would come. Thus, a good seal of the receiving space AR when introducing initially liquid foam in the space between the wall W and housing G is achieved in each case.

Despite the different material properties over its course, the or each holding part HT can still be a one-piece assembly and handling very simplistic by being produced, for example, in a multi-component injection molding (so-called 2K method).

To mount it, the holding part HT machine or in particular manually inserted into the opening structure D of the wall W from the outside or inside, to simplify the assembly in particular that the use orientation of a holding part HT is forced into the opening structure D, for example, by different sizes Insert openings D1 and D2.

When inserting the holding part HT then passes at sufficiently far advancing the hook parts H1, H2 along the wall W automatically and the abutment WL to its stop on the wall web WS. Through the sliding surfaces of the hook parts H1, H2 a spring-back force is exerted longitudinally to the wall W, which presses the abutment WL in its holding position.

LIST OF REFERENCE NUMBERS

HK

Household refrigerator,

D

Through hole structure,

D1

Insertion hole

D2

Insertion hole

AR

Receiving space

G

Casing,

W

wall

WS

Wandungssteg,

H1

Hook portion,

H2

Hook portion,

HT

Holding part,

WL

Abutment,

F

Spring clip,

DG

Poetry,

G

casing

Claims (11)

1. Household refrigeration device (HK) having at least one receiving chamber (AR) for items to be cooled, wherein the receiving chamber (AR) is delimited by walls (W) and at least one of the walls (W) is provided for supporting at least one holder part (HT) protruding into the receiving chamber (AR), which especially holds a temperature sensor, an illumination means and/or a thermostat, one or more breakthrough structure(s) (D) is or are provided, wherein the wall (HT) is able to be gripped from behind by the holder part (HT) in the edge area of a breakthrough structure (D) with at least two hook parts (H1; H2) and the holder part (HT) is able to have force applied to it via spring force (F) with a force component in the receiving chamber (AR) against the tensile direction of the hook parts (H1; H2), wherein at least two hook parts (H1; H2) are provided with rear grip surfaces oriented essentially in the same direction as regards the extension of the surface of the wall (W) for gripping the rear of the wall (W), wherein the rear grip surfaces, in the installed position, each have a component oriented essentially in the same direction along the surface of the wall (W) and a component essentially perpendicular to said direction, wherein the holder part (HT) is provided with a counter support (WL), which is able to be secured in the breakthrough structure (D) and in said case block a withdrawal of the holder part (HT) against the orientation of the rear grip surfaces, characterised in that the breakthrough structure (D) has a number of insert openings (D1; D2) for the hook parts (H) of the holder part (HT) and the counter support (WL) is able to be supported on a wall web (WS) delimiting the insert openings (D1; D2) from one another.
2. Household refrigeration device according to claim 1, characterised in that the rear grip surfaces are embodied as slide-off tapers for the edge area of the breakthrough(s) (D).
3. Household refrigeration device according to one of the preceding claims, characterised in that the slide-off tapers extend over at least five millimetres along the wall (W).
4. Household refrigeration device according to one of the preceding claims, characterised in that the slide-off tapers extend over at least five millimetres perpendicular to the wall (W).
5. Household refrigeration device according to one of the preceding claims, characterised in that the holder part (HT) is provided with at least one spring clip (F) effective in the direction of the wall (W), which is able to be deformed to a different degree of deformation depending on the wall thickness.
6. Household refrigeration device according to one of the preceding claims, characterised in that the holder part (HT) is provided with a seal (DG) surrounding a breakthrough (D) in the installed state, which is able to be deformed to a different degree of deformation depending on the wall thickness.
7. Household refrigeration device according to claims 5 and 6, characterised in that the seal (DG) is embodied by an outermost area of the spring clip (F).
8. Household refrigeration device according to one of claims 5 to 7, characterised in that the seal (DG) and/or the spring clip (F) enclose the holder part (HT) at least almost entirely.
9. Household refrigeration device according to one of the preceding claims, characterised in that the holder part or each holder part (HT) is embodied in one piece.
10. Household refrigeration device according to one of the preceding claims, characterised in that the holder part or each holder part (HT) is embodied in a multi-component injection moulding.
11. Household refrigeration device according to claim 7, characterised in that the insert orientation of a holder part (HT) into a breakthrough structure (D) is necessarily predetermined.

Images