DE102010039743A1 - Refrigerating appliance, in particular household refrigerating appliance - Google Patents

Abstract

The invention relates to a refrigeration device, in particular a household refrigeration device, with a base part (11) and a door bearing housing part (19) attached to the base part (11), in which a bearing plate (14) is fixed to the device and to which a device door can be hinged. According to the invention, the bearing plate (14), the door bearing housing part (19) and the base part (11) form an at least three-layer component assembly (23) which is joined together by means of at least one connecting element (29).

Description

The invention relates to a refrigeration device, in particular household refrigerating appliance, according to the preamble of claim 1.

In stationary refrigerators, each of the two front lower corner regions forms a node in which not only the weight of the refrigerator and an opposite, equal ground support force are introduced, but also dynamic forces, as they arise during transport. Therefore, the lower corner areas are designed with a high component strength.

From the DE 198 25 979 A1 is a generic refrigerator known, which has a located in the lower front corner door hinge of a refrigerator. The door bearing has a bottom part and a fixed to the underside of the bottom part door bearing housing part in which a bearing bracket or a bearing plate is fixed to the device. On the bearing plate, the refrigerator door is hinged. The front of the refrigerator is also covered by a front plate.

In the front side arranged end plate, an access opening is incorporated, through which the bearing plate in the door bearing housing part can be inserted. The bearing plate is screwed by means of screw on the bottom part. The bottom part is in the DE 198 25 979 A1 a plastic board, which is formed of the same material together with the door bearing housing part.

The object of the invention is to provide a refrigeration appliance, in particular household refrigeration appliance, whose lower door storage can be assembled in terms of assembly technology and has a high component strength.

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 , a fridge freezer or a wine storage cabinet.

The refrigeration device according to the invention has a bottom part and a door bearing housing part fastened to the bottom part. In the door bearing housing part, a bearing plate is fixed to the device, on which a door is hinged. According to the invention, the bearing plate, the door bearing housing part and the bottom part as separate components form an at least three-layered component composite, which is joined together by means of at least one connecting element. The component strength of the refrigeration unit in the door storage area can be increased with the three-layer component assembly. In particular, in the case of a bottom-side door bearing, therefore, there results a dimensionally stable node into which the weight of the refrigeration appliance and the ground support force acting in the opposite direction are introduced via the appliance foot.

The consisting of the bearing plate, the door bearing housing part and the bottom part three-layer component composite may additionally have an intermediate element for further stabilization, which is inserted between the bottom part and the door bearing housing part. The intermediate element can transmit together with the bearing plate vertically aligned forces between the bottom part and the door bearing housing part.

The component strength is also increased if the intermediate element and / or the bearing plate together with the inner part and the door bearing housing part are gap-free with each other in planar contact. As mentioned above, such a composite component is joined together by a common connecting element. This can be done by any known connection technique, such as welding or screwing. With regard to a simple assembly, however, it is preferred if at least one connecting element is integrally formed on the door bearing housing part in the same material and / or in one piece. The connecting element can produce a positive connection between the door bearing housing part, the intermediate bearing plate or the intermediate element and the upper bottom part in device vertical direction. In this case, no additional parts, such as fastening screws, required to hold the composite component together.

The door bearing housing part can limit together with the intermediate element and the bottom part a device front side open receiving space into which the bearing plate can be inserted. The receiving space floor and its side walls may be formed by the door bearing housing part, while the top wall is formed by the refrigeration device bottom part. In order to obtain a particularly flat-fitting door storage, the space height of the receiving space can correspond approximately to the material thickness of the bearing plate to be used. This also ensures that the bearing plate is arranged in the device vertical direction backlash in the receiving space.

For a correct position mounting of the bearing plate, it is also advantageous if the bearing plate is arranged in the depth direction and in the side direction without play in the receiving space. This can preferably be achieved with a stop contour, in which the side and depth stops are integrated, which are positively in contact with the bearing plate used. It is preferred if the Stop contour is not formed directly by the door bearing housing part, but in the intermediate element arranged therein. The intermediate element can therefore be designed with the geometrically complex stop contour, while the geometry of the outer door bearing housing part can be kept simple. Against this background, it is advantageous if the intermediate element is made of an easy-to-molding material, such as plastic. In contrast, the door bearing housing part can be made of a material which has a greater strength compared to the intermediate element, such as a sheet metal material. In the same way, the bottom part and the bearing plate can be made of sheet metal part blanks of different material thickness.

To further increase the component strength, the door bearing housing part with the upper marginal edges of its raised side walls can be directly in abutting connection with the bottom part. Along the marginal edges of the side walls of the door bearing housing part can be integrally formed upwardly projecting metal tabs. These protrude through recesses of the bottom part. To fix each of the metal tabs may have a recess of the bottom part cross-head. The closing head can be produced by a bending or clinching process.

In the receiving space bounded by the bottom part, by the intermediate element and by the door bearing housing part, the bearing plate can initially be pre-positioned substantially free of play in a first assembly step. After pre-positioning, the bearing plate can be secured by means of a releasable securing element against unintentional withdrawal from the door bearing housing part. Mounting technology particularly preferred is when the releasable securing element for tools is easily accessible. Against this background, the releasable securing element may be a screw-in element which can be inserted into the door bearing housing part on the front side, as a result of which device front-side tool access is made possible. In the installed position of the screw head of the screw presses the already prepositioned bearing plate against the arranged in the receiving space stop contour.

At the, protruding from the door bearing housing part portion of the bearing plate, a bearing bush for rotatably supporting the door and at the same time a device be supported. The bearing plate may be a solid sheet metal blank, the material thickness may be in the range of 5 mm.

Usually, the refrigerator of the refrigerator is limited by a thermoformed plastic inner container. Its device front side plastic frame defines a feed opening of the refrigerator. On the plastic frame is usually followed to the outside a device front side face plate. According to the invention, the front plate can be extended with an angled, bottom-side holding leg to the bottom of the bottom part. In order to obtain a stable support of the device front side end plate, the front plate holding leg can be integrated in the component assembly consisting of door bearing housing part, bottom part and bearing plate. Particularly preferably, in this case, the door bearing housing part may be fastened with the interposition of the front plate holding leg on the bottom part. This results in a total of four-layer component composite, which is favorable in terms of component strength.

Hereinafter, an embodiment of the invention with reference to the accompanying figures will be described.

Show it:

1 in a perspective partial view from below a corner region of the refrigerator;

2 in a further perspective partial view from above the corner region of the refrigerator;

3 in an exploded view, the corner region with built-up from the door bearing housing part bearing plate;

4 a side sectional view showing the component composite consisting of bottom plate, front plate holding leg, bearing plate and door bearing housing part;

5 in a perspective view from inside the corner of the refrigeration device with the bearing plate removed; and

6 in an exploded view, the bottom door hinge.

In the 1 a lower right corner region of a stationary refrigerator is shown in a view from below with a lower door bearing. At the lower door bearing a device door, not shown here is articulated, which has a front loading opening 1 of the refrigerator closes. The loading opening is in a conventional manner of a plastic frame 3 removed, which is part of a deep-drawn plastic inner container. The plastic frame 3 goes in device side direction x as well as in device vertical direction z in device front side end plates 5 above.

Like from the 1 further, it is the lower face plate 5 on the bottom side on a horizontally running lower edge 7 with a holding leg 9 angled. The front plate holding leg 9 engages under a later described in more detail bottom part 11 , which reinforces the lower corner of the refrigerator. In that, in the 1 not shown lower left corner area is also an identical bottom part 11 intended for reinforcement. On the top of the bottom part 11 a z. B. made of cardboard boundary wall 13 , which defines a cavity at the bottom, which is filled with not shown Wärmeisolierschaum.

The above-mentioned lower door bearing has a housing-fixed plate-shaped bearing plate 14 on, on an upstanding trunnion 15 a bearing bush shown only by dashed lines 17 wearing. In the assembled state, the appliance door is rotatable on this bearing bush 17 stored. In addition, the bearing plate carries 14 one in the 2 to 4 shown height-adjustable device foot 18 , which threaded into engagement with the bearing plate 14 located. The bearing plate 14 is made of a solid sheet metal part whose plate thickness s _{1 is} in the range of 5 mm.

The bearing plate 14 is according to the figures in a door bearing housing part 19 fixed device. The housing part 19 is also a sheet metal part whose plate thickness s _{2 is} in the range of 1.5 mm. Like in the 3 is shown limits the housing part 19 with his bottom 20 and its raised sidewalls 21 a device front side open recording room 22 in which the bearing plate 14 can be inserted in the direction of the arrow. The installation space h of the receiving space 22 corresponds essentially to the material thickness s _{1 of} the bearing plate 14 , In addition, in the recording room 22 of the housing part 19 provided in Bautiefenrichtung y and in the lateral direction x movement stops, which provides a backlash-free pre-positioning of the bearing plate 14 in the housing part 19 enable. The movement stops are as a stop contour 24 in an intermediate element 35 integrated, which is a plastic insert here. The stop contour 24 the plastic insert 35 is in the installation position form-fit in contact with a plug-in profile 38 the bearing plate 14 ,

After pre-positioning, the bearing plate can 14 by tightening a screw 25 against pulling out of the housing part 19 be secured. The screw used as securing element 25 can according to the 3 in with one out of the housing part floor 20 bent out sheet metal tab 26 be screwed. When tightening the screw 25 comes their screw head in pressure system with a contact surface 27 the bearing plate 14 , causing the bearing plate 14 against the stop contour 24 is pressed.

The face plate 5 forms according to the 4 together with the door bearing housing part 19 , the bottom part 11 and the bearing plate 14 a sheet metal part assembly which is loaded with large weight forces or counteracted Bodenauflagekräfte. So that the sheet metal part assembly receives the necessary component strength, form the sheet metal parts 9 . 11 . 14 . 19 a four-layer component composite 23 in which the sheet metal parts and the plastic insert 35 are assembled flat and play. In addition, the components 9 . 11 . 14 . 19 . 35 connected through a connection, as they are from the 4 and 5 evident. According to the 4 and 5 are the side walls 21 of the housing part 19 at their upper edges 28 with molded sheet metal tabs 29 extended. In the 4 are a total of four metal tabs 29 shown extending along the top edge 28 of the housing part 19 extend at a distance from each other. According to the 4 protrude the metal tabs acting as fasteners 29 through corresponding recesses 31 of the face plate holding leg 9 as well as through recesses 32 of the bottom part 11 , where the recesses 31 . 32 are aligned with each other in alignment.

The in the 4 shown right two metal tabs 29 each have one, the recess 32 of the bottom part 11 overarching closing head 33 on, compared to the recess 32 is extended and overlaps this form-fitting. The closing head 33 the sheet metal tabs 29 is made by material deformation on the front side of the respective sheet metal tab 29 educated. For this purpose, with a tool, not shown on the upwardly free end of the sheet metal tabs 29 exerted a compressive force F, as determined by, in the 4 on the left shown metal tabs 29 is shown.

By applying the pressure force F, the upper end faces of the sheet metal tabs 29 so caulked that the widened closing heads 33 result. During the pressure forming of the metal plates 29 is the housing part 19 on one in the 4 not shown abutment supported to a process-reliable deformation of the sheet metal tabs 29 to ensure. It also ensures that the margins 28 of the housing part 19 the front plate holding leg 9 backlash against the bottom part 11 to press. The housing part 19 is therefore easy to mount and reliable with the interposition of the retaining leg 9 at the bottom part 11 attached. The material flow resulting from the deformation is therefore limited solely to the upper free end face of the sheet metal tabs 29 , The bottom part 11 and the front plate holding leg 9 remain deformation-free.

In the 5 the corner region of the refrigeration device is shown from the inside, wherein the Wärmeisolierschaum is omitted for reasons of clarity. As a result, the expanded closing heads 33 the sheet metal tabs 29 of the housing part 19 recognizable, in series along the marginal edge 28 the side wall 21 extend. In assembly position are the closing heads 29 from the boundary wall 13 covered in the 5 only indicated by dashed lines. According to the 5 has the bottom part formed from a sheet metal blank 11 also laterally upwards angled edge webs 34 on, which is an outer device sidewall 37 as well as the device front side face plate 5 support. The device front side face plate 5 according to the 5 In addition, a known per se plug contour into which a corresponding, the plastic frame 3 molded plug-in profile can be used.

In the exploded view of the 6 is that in the mounting position in the recording room 22 of the door bearing housing part 19 inserted intermediate element or plastic insert 35 shown. The intermediate element 35 points to his, the bearing plate 14 facing the stop contour 24 with the integrated side and depth stops on. The stop contour 24 is according to the 6 as a negative mold to the corresponding plug contour 38 the bearing plate 14 executed. The plastic insert 35 is designed essentially plate-shaped with a truss-like stiffening structure. When assembling the bottom-side door bearing is first the plastic insert 35 in the door bearing housing part 19 inserted. Subsequently, the door bearing housing part 19 connected on the bottom side with the refrigerator, as it is in the 4 shown. This results in a total of four-layer component composite 23 consisting of the door bearing housing part 19 , the intermediate element 35 as well as the bearing plate 14 , the face plate holding thigh 9 and the bottom part 11 of the refrigeration device.

LIST OF REFERENCE NUMBERS

1

loading port

3

Plastic frame

5

face plate

7

lower edge

9

Face plate-holding leg

11

the bottom part

13

boundary wall

14

bearing plate

15

pivot

17

bearing bush

18

Device base

19

The door bearing housing member

20

ground

21

Side wall

22

accommodation space

23

component composite

24

retainer profile

25

fuse element

26

sheet tab

27

contact surface

28

edge

29

metal tabs

31, 32

recesses

33

closing heads

34

edge webs

35

intermediate element

37

Device sidewall

38

male profile

s ₁ , s ₂

sheet thicknesses

H

space height

x, y, z

spatial directions

F

 thrust

QUOTES INCLUDE IN THE DESCRIPTION

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

Cited patent literature

• DE 19825979 A1 [0003, 0004]

Claims (13)

Refrigerating appliance, in particular household refrigerating appliance, with a bottom part ( 11 ) and one at the bottom part ( 11 ) fixed door bearing housing part ( 19 ), in which a bearing plate ( 14 ) is fixed device on which a device door is articulated, characterized in that the bearing plate ( 14 ), the door bearing housing part ( 19 ) and the bottom part ( 11 ) as separate components, an at least three-layer component composite ( 23 ) formed by at least one connecting element ( 29 ) is joined together. Refrigerating appliance according to claim 1, characterized in that the component composite ( 23 ) for further stabilization additionally an intermediate element ( 35 ), which between the bottom part ( 11 ) and the door bearing housing part ( 19 ) is used. Refrigerating appliance according to claim 1 or 2, characterized in that the intermediate element ( 35 ) and / or the bearing plate ( 14 ) together with the bottom part ( 11 ) and the door bearing housing part ( 19 ) are gap-free with each other in flat contact. Refrigerating appliance according to claim 1, 2 or 3, characterized in that the door bearing housing part ( 19 ), in particular together with the bottom part ( 11 ) and the intermediate element ( 35 ) a device front side open receiving space ( 22 ), in which the bearing plate ( 14 ) can be inserted. Refrigerating appliance according to claim 4, characterized in that a space height (h) of the receiving space ( 22 ) of a material thickness (s ₁ ) of the bearing plate ( 14 ) corresponds. Refrigerating appliance according to one of claims 2 to 5, characterized in that the intermediate element ( 35 ) a stop contour ( 24 ) with side stops and depth stops, the form-fitting in abutment with a plug contour ( 38 ) of the bearing plate ( 14 ) are. Refrigerating appliance according to one of the preceding claims, characterized in that the door bearing housing part ( 19 ) a housing bottom ( 20 ) with raised side walls ( 21 ) whose free marginal edges ( 28 ) at the bottom part ( 11 ) issue. Refrigerating appliance according to one of the preceding claims, characterized in that the bottom part ( 11 ) and / or the bearing plate ( 14 ) Sheet metal parts are, while the intermediate element ( 35 ) is a plastic part. Refrigerating appliance according to one of claims 4 to 8, characterized in that the bearing plate ( 14 ) in a first assembly step substantially free of play in the receiving space ( 22 ) is prepositionable. Refrigerating appliance according to claim 9, characterized in that a securing element ( 25 ) provided in the recording room ( 22 ) pre-positioned bearing plate ( 14 ) secures. Refrigerating appliance according to one of the preceding claims, characterized in that the refrigeration device on its front panel with a visible when the door open the front plate ( 5 ) is provided, which in a depth direction (y) angled holding leg ( 9 ), wherein the door bearing housing part ( 19 ) with interposition of the front plate holding leg ( 9 ) at the bottom part ( 12 ) is attached. Refrigerating appliance according to claim 11, characterized in that the component composite ( 23 ) together with the front plate holding leg ( 9 ) is executed in four layers. Refrigerating appliance according to one of claims 10, 11 or 12, characterized in that the detachable securing element ( 25 ) a front side in the door bearing housing part ( 19 ) usable screw element whose screw head the bearing plate ( 14 ) against the stop contour ( 24 ) of the intermediate element ( 35 ) presses.

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