DE102008032266B4 - Household appliance, in particular dishwasher - Google Patents

Abstract

Domestic appliance with a utility space container (1), in particular a washing compartment of a dishwasher, which has at least one connecting flange (14), on the side edges (12, 13) of container side walls (3, 5) are interconnected, - wherein the connecting flange (14 ) has at least one force introduction element, - wherein on the connecting flange (14) at least one Kraftaufnehmerelement (17) is supported, via which externally applied to the household appliance clamping forces (FK) in the Nutzraum container (1) are introduced, - wherein the force introduction element at least one force introduction surface (25) on which the force transducer element (17) is supported, and - wherein the force introduction surface (25) by a stiffening bead (23) of the connecting flange (14) is formed.

Description

The invention relates to a domestic appliance with a usable space container, in particular a washing container of a dishwasher, which has at least one connecting flange, are connected to the side edges of container side walls with each other.

The transport or stacking of household appliances, such as a dishwasher, can be done at the factory by means of a so-called staple stacker, which applies from the outside clamping forces on opposite sides of the housing device and the parenthetical parenthetically displaced.

The clamping forces exerted by the stapler are passed through the housing sides through the housing interior of the household appliance. In a generic household appliance, a usable space container, in particular a washing container of a dishwasher, is provided. The work space container has at least one connecting flange, on which angled side edges of adjoining container side walls are welded together. With the connecting flange, the container side walls are liquid-tight connectable. The connecting flange can also move the work space container almost completely, whereby it increases the dimensional stability of the work space container in a dual function.

The clamping forces to be applied to the household appliance must be dimensioned so that no container destruction occurs. In addition, it is known to provide a further force path for relieving the useful space container, via which the clamping forces outside the work space container are passed through the household appliance. This is done by way of example via an additional wooden slat, a cardboard roll or a plastic strip, which is connected between the two lateral Kraftaufnehmerelementen.

The object of the invention is to provide a household appliance, in particular a dishwasher, with a dimensionally stable usable space container, which in particular easily withstands the clamping forces when transporting or stacking the household appliance.

The object is solved by the features of patent claim 1. Preferred embodiments of the invention are disclosed in the subclaims.

The household appliance according to the invention comprises a useful space container, in particular a washing container of a dishwasher, which has at least one connecting flange, on which side edges of container side walls are connected to one another. The connecting flange has at least one force introduction element, whereby the dimensional stability of the connecting flange and thus of the entire working space container with respect to external loads, such as the outer clamping forces, is increased. Usually, the usable space container can be made of sheet metal walls stainless steel container. The sheet metal walls can be welded together at their angled side edges and thus form the connecting flange. Furthermore, at least one force-absorbing element is supported on the connecting flange, via which from the outside on the household appliance acted upon clamping forces can be introduced into the usable space container. Furthermore, the force introduction element has at least one force introduction surface on which the force transducer element is supported. Moreover, the force introduction surface is formed by a stiffening bead of the connecting flange.

The stiffening bead can be introduced by way of example in a molding process in the connecting flange and extend approximately transversely to the connecting flange.

The angled side edges of adjoining container side walls can therefore be connected to one another, in particular welded, at the connecting flange. The thus projecting approximately at right angles to the container side wall to the outside connecting flange can therefore not only connect container side walls, but also increase the internal stability of the useful space container. Consequently, the connecting flange can serve as a suitable abutment for a force transducer element, via which externally applied to the household appliance clamping forces can be introduced into the usable space container.

For safe handling by the stapler, sufficiently large clamping forces are required. On the other hand, it must be ensured that there is no container destruction due to excessive clamping forces. Against this background, it is particularly relevant to increase the number of force introduction points of the force transducer element in the connecting flange. According to a preferred embodiment, the stiffening bead can provide a first force introduction surface, on which the force transducer element can be supported when a clamping force is exerted. The stiffening bead thus not only increases the dimensional stability of the work space container but at the same time also increases the number of force introduction points on the work space container.

The connecting flange of the work space container may extend along side edges of at least two adjacent ones Container walls extend. In particular, the connecting flange between laterally opposite force transducer elements forms a device-internal force path along which clamping forces can be conducted.

The connecting flange may have at least one stiffening bead on its opposite sides and / or in a force introduction region.

Preferably, the outer clamping forces can be introduced directly into the stiffening bead. For this purpose, it is advantageous if the stiffening bead is in each case brought close to the respective force transducer element.

In this way, it is achieved that the introduction forces applied by the staple stacker are distributed as widely as possible over the useful space container.

The force transducer element is preferably a plastic part which is resiliently deformable when clamping forces are exerted. As a result, despite force-related deviations in the dimensions of the force transducer element or the usable space container, all force introduction surfaces of the useful space container can come into pressure contact with the corresponding abutment surfaces of the force transducer element.

Against this background, it is particularly advantageous if the stiffening bead is formed in approximately semi-cylindrical shape in the connecting flange. In the case of tolerance-related dimensional deviations, corresponding abutment surfaces of the force transducer element can therefore be deflected elastically yieldingly at least slightly from the semicylindrical shaped stiffening bead, whereby the other abutment surfaces of the force transducer element can be brought into full-surface pressure installation with the useful space container.

The force introduction surface provided by the stiffening bead can be inclined in the manner of a start-up ramp. When a clamping force is exerted, the force transducer element can therefore generate a force component which presses the force transducer element against a further force introduction surface of the useful space container, preferably against its container wall. Here it makes sense that the force transducer element is pressed directly onto the outside of the work space container. The stiffening bead therefore represents a force application surface itself in a double function and at the same time presses the force transducer element against the further force introduction surface on the useful space container.

As a third force introduction surface can act an outer edge of the connecting flange, against which, as is known, the force transducer element can be supported when exercising a clamping force.

Preferably, in each case one force-receiving element can be provided on two opposite, preferably rearward corner regions of the usable-space container. In the two rear, upper corner regions of the usable space container, in particular the washing container of the dishwasher, the rear wall, the top wall and the respective side wall run together. The rear upper corner regions of the washing container are therefore dimensionally stable already geometrically conditioned and therefore particularly suitable for a larger force introduction of external clamping forces of a staple truck. The at least one stiffening bead according to the invention can therefore be provided preferably in the region between the two upper rear corners of the washing container to further increase the dimensional stability.

The attachable to the connecting flange of the usable space container force transducer element may have a slot-like guide groove, with which the force transducer element is approximately form-fitting manner on the connecting flange of the useful space container attachable.

In the side walls of the guide groove of the Kraftaufnehmerelements at least one preferably pocket-shaped recess may be provided which is particularly adapted to the shape of the stiffening bead. The force transducer element can therefore be with its guide with more or less large mounting clearance in positive engagement with the connecting flange and the stiffening bead.

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

Show it

1 in a perspective view from behind a dishwasher with exposed cover and rear wall of the outer housing of the dishwasher;

2 in an enlarged perspective view, a rear side upper corner portion of the washing container;

3 the device-rear upper corner region of the washing container with only dash-dotted lines indicated Kraftaufnehmerelement; and

4 in a perspective view from below a force transducer element.

In the 1 is a rear perspective view of a dishwasher with a washing container 1 shown. The washing container 1 is made in a known manner from stainless steel sheet and has a front loading opening, not shown. Its top wall 3 as well as back wall 5 are in the 1 for the sake of clarity exposed exposed. The washing container 1 is therefore in the 1 in one only by the two side walls 7 arranged outer housing arranged.

The washing container 1 Here, by way of example, has a box-shaped, ring-like closed metal jacket with a rectangular cross section, which covers the top wall 3 , the side walls 4 and the bottom wall of the washing container, not shown 1 forms. At its back, the box-shaped metal jacket by the approximately trough-shaped rear wall 5 closed. The open front of the box-shaped sheet metal jacket is in a known manner by a U-shaped front frame 6 limited.

The box-shaped, ring-like closed metal jacket and the rear wall 5 of the washing container 1 according to the 2 at their mutually facing edge zones 9 . 11 outwards at right angles angled side edges 12 . 13 on, which are interconnected by a roller seal, not shown, and together a connecting flange 14 form. The connecting flange 14 can be used as a connection point between the metal jacket and the rear wall 5 on the entire side the entire washing container 1 frame.

In the 2 is a device rear, upper corner of the washing compartment 1 shown on the back wall 5 , the top wall 3 as well as one only in the 3 shown side wall 4 of the washing container 1 converge. To initiate lateral clamping forces F _K by means of a stapler used in the factory are according to the 1 and 2 at these rear, upper corner areas of the washing compartment 1 each lateral Kraftaufnehmerelemente 17 intended. These cover each corner areas and are between the washing 1 and the respective device side wall 7 is switched. Both rear load cell elements 17 are over in the depth direction x aligned lateral Kraftaufnehmerschienen 19 with front load cell elements 21 coupled. These are in lateral contact with the U-shaped front frame 6 of the washing container 1 ,

In the 3 is a rear upper corner of the washing container 1 shown in isolation, while the applied thereon Kraftaufnehmerelement 17 only indicated by dash-dotted lines. As a result, in the horizontal portion of the connecting flange 14 stiffening beads arranged one behind the other 23 provided in approximately semi-cylindrical as pocket-shaped recesses in the connecting flange 14 are formed. According to the 3 is the top wall side edge 12 around the backside side edge 13 herumgebördelt. In the area of this flange is therefore the connecting flange 14 three-layered.

The two stiffening beads 23 are according to the 3 slanted in the manner of a start-up ramp, that is, the stiffening beads 23 run according to the 3 in the device side direction y outward obliquely upward. The respective exterior surface facing the device segments 25 the two stiffening beads 23 in each case provide first force introduction surfaces, against which when exercising the clamping force F _K Kraftaufnehmerelement 17 suppressed.

Like from the 3 further shows, the two semi-cylindrical stiffening beads 23 in the depth direction x oriented in opposite directions, thereby simultaneously the dimensional stability of the connecting flange 14 is increased. As a further force introduction surface 27 is according to the 3 the outer edge of the vertical portion of the connecting flange 14 provided here the back wall 5 with the sidewall 4 combines.

In the 4 is a force transducer element 17 shown in isolation. The force transducer element 17 is manufactured as a plastic component in the injection molding process. On its underside, in the installation position the washing container 1 facing, has the force transducer element 17 a roughly truss-like structure. The truss-like structure is centered by a slot-like guide groove 29 divided, with the force transducer element 17 in the upper Spülbehälter corner area positively on the connecting flange 14 is pluggable. In the two side walls 31 the guide groove 29 the force transducer element 17 are pocket-shaped recesses 33 provided the stiffening beads 23 are contour-matched.

For the transport or stacking of the dishwasher by means of a so-called staple stacker, the clamping forces F _K on the housing side walls 7 the dishwasher applied, as it is in the 1 is indicated. By the applied clamp force F _K which are laterally opposite Kraftaufnehmerelemente 17 pressed with their abutment surfaces against the force input surfaces of the washing. As an abutment surface according to the invention acts according to the 4 the groove bottom 35 the guide groove 29 of the force transducer 17 , The groove bottom 35 presses against the vertical outer edge 27 of the connecting flange 14 ,

The slanted circular surface segments 37 the two stiffening beads 23 also serve as abutment surfaces, against the force introduction surfaces 25 the two stiffening beads 23 be pressed. Because the two force introduction surfaces 25 the stiffening beads 23 are tilted in the manner of a start-up ramp, when exercising the clamping force F _K on the Kraftaufnehmerelement 17 generates a vertical force component F _V , as shown in the 1 is indicated. With the vertical force component F _V is the force transducer element 17 down to the outside of the ceiling wall 3 pressed, which acts as a further force introduction surface.

Overall, therefore, with the outside of the ceiling wall 3 , the force introduction surfaces 25 the stiffening beads 23 as well as with the outer edge 27 of the connecting flange 14 provided over a wide distributed force introduction surfaces, the exercise in the clamping forces F _K voltage peaks in the two corners of the washing compartment 1 reduce and thereby a deformation of the washing container 1 prevent.

LIST OF REFERENCE NUMBERS

1

Useful volume containers; rinse tank

3

ceiling wall

4

Side wall

5

rear wall

6

U-shaped front frame

7

Housing side wall

9

Edge zones of the ceiling wall and the rear wall

11

Edge zones of the ceiling wall and the rear wall

12

Side edges of the ceiling wall and the rear wall

13

Side edges of the ceiling wall and the rear wall

14

connection flange

17

Kraftaufnehmerelement

19

Kraftaufnehmerschiene

21

Kraftaufnehmerelement

23

reinforcing bead

25

Krafteinleitfläche

27

Outer edge of the connecting flange

29

guide

31

Sidewall of the guide groove

33

recess

35

groove base

37

surface segment

F _K

clamping force

F _V

Vertical force component

x

Bautiefenrichtung

y

Device side direction

Claims (9)

Household appliance with a work space container ( 1 ), in particular a washing container of a dishwasher, which has at least one connecting flange ( 14 ), at the side edges ( 12 . 13 ) of container sidewalls ( 3 . 5 ), wherein - the connecting flange ( 14 ) has at least one force introduction element, - wherein at the connection flange ( 14 ) at least one force transducer element ( 17 ) is supported, via which externally applied to the household appliance clamping forces (F _K ) in the work space container ( 1 ) can be introduced, - wherein the force introduction element at least one force introduction surface ( 25 ), on which the force transducer element ( 17 ), and - wherein the force introduction surface ( 25 ) by a stiffening bead ( 23 ) of the connecting flange ( 14 ) is formed. Domestic appliance according to claim 1, characterized in that the connecting flange ( 14 ) of the work space container ( 1 ) at least between two laterally opposite force transducer elements ( 17 ) forms a force path along which clamping forces (F _K ) can be conducted. Domestic appliance according to claim 1 or 2, characterized in that the connecting flange ( 14 ) at its opposite side ends and / or in a force introduction region in each case at least one stiffening bead ( 23 ) having. Domestic appliance according to claims 1 to 3, characterized in that the stiffening bead ( 23 ) in approximately semi-cylindrical shape in the connecting flange ( 14 ) is shaped. Domestic appliance according to one of the preceding claims, characterized in that the force introduction surface ( 25 ) of the stiffening bead ( 23 ) is formed forming a start-up ramp, which upon application of a clamping force (F _K ) on the Kraftaufnehmerelement ( 17 ) generates a force component (F _V ), which the force transducer element ( 17 ) against a further force introduction surface of the work space container, preferably against the container wall ( 3 ), presses. Domestic appliance according to one of the preceding claims, characterized in that the force transducer element ( 17 ) when the clamping force (F _K ) is exerted against an outer edge acting as a further force introduction surface ( 27 ) of the connecting flange ( 14 ) is supportable. Domestic appliance according to one of the preceding claims, characterized in that at two opposite corner areas of the usable space container ( 1 ) each a force transducer element ( 17 ) is provided. Domestic appliance according to one of the preceding claims, characterized in that the force transducer element ( 17 ) a slot-like guide groove ( 29 ), with which the force transducer element ( 17 ) in approximately positive fit on the connecting flange ( 14 ) of the work space container ( 1 ) can be plugged. Domestic appliance according to claim 8, characterized in that in the side walls ( 31 ) of the guide groove ( 29 ) of the force transducer element ( 17 ) at least one recess ( 33 ) is provided, which in particular the shape of the stiffening bead ( 23 ) is adjusted.

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