EP2162047A2

EP2162047A2 - Dishwasher platform

Info

Publication number: EP2162047A2
Application number: EP08760989A
Authority: EP
Inventors: Cengiz Kücük; Michael Rosenbauer; Bernd Schessl; Martin Stickel; Manfred Seessle; Anton Oblinger; David Semerad; Dieter Hotz
Original assignee: BSH Bosch und Siemens Hausgeraete GmbH
Current assignee: BSH Hausgeraete GmbH
Priority date: 2007-06-29
Filing date: 2008-06-13
Publication date: 2010-03-17
Also published as: NZ581799A; US20100192990A1; AU2008270485A1; RU2010101738A; RU2457771C2; DE102007030064A1; WO2009003823A2; AU2008270485B2; CN101686790A; JP2010531689A; WO2009003823A3

Abstract

The dishwasher according to the invention comprises a tub (40) consisting at least partially of corrosion-proof metal that is open at the front and base with walls (11, 17, 18, 19) and a base part (53) consisting at least partially of plastic. The tub (40) is located on the base part (53) forming a washing container (14) and the base wall (3) is formed by the base part (53). The base part (53) has a connection frame (42) with a base wall (3) as a separate component. The base wall (3) optionally consists of stainless steel or plastic. In addition, a base pan (44) is situated on the base part (53). As a result of the modular construction of the base part (53), the concept permits a washing container to be produced with a base wall (3) having a visible plastic or stainless steel surface without having to make significant adjustments to the manufacturing process. In general, the tub (40) is made from stainless steel.

Description

Platform for a dishwasher

The invention relates to a dishwasher, comprising a trough open to the front and bottom with walls, wherein the trough is arranged on a base part to form a washing container and a bottom wall of the washing container is formed by the base part. The invention also relates to a method for producing a dishwasher, comprising a trough with walls open towards the front and the bottom, wherein the trough is arranged on a base part to form a washing container and a bottom wall of the washing container is formed by the base part.

The basic structural design of a dishwasher, in particular a domestic dishwasher, is referred to as a so-called platform. The platform of a dishwasher essentially comprises the washing container and the storage of the washing container on the floor, z. B. with a mounting base made of metal or plastic. Under certain circumstances, under the platform in addition to the above mentioned the installation or installation of functional components, such. As pumps, heating, electrical or hydraulic connectors, screens or water softening device, understood and / or the housing understood.

The following platform is known from the prior art: a rinsing container is placed on a mounting base made of plastic. The washing container with two side walls, a rear wall, a bottom wall and a top wall (only open to the front) is completely made of stainless steel and is produced by means of forming and joining methods, eg. B. welding, made of generally several stainless steel sheets. The assembly floor is therefore an upwardly open trough, which is shown for example in EP 0 243 632 A2 and EP 0 243 631 B1 of the applicant.

In further development, EP 0 452 287 B1 discloses a rinsing container which has only two side walls, a rear wall and a top wall made of stainless steel (trough) and the bottom wall of the rinsing container is formed from the assembly base made of plastic, ie the assembly floor is thus not upwards open tray as in EP 0 243 632 A2 and EP 0 243 631 B1, but a box substantially closed on all sides. From DE 101 56 423 A1 of the applicant is also a platform with a washing container of two side walls, a rear wall and a top wall made of stainless steel known. The bottom wall of the washing container is also formed by the mounting base made of plastic.

This platform concept, in particular known from EP 0 452 287 B1 and DE 101 56 423 A1 of the applicant, in which the mounting base made of plastic forms the bottom wall of the washing container and have a separate housing, are cheaper to manufacture and simpler to manufacture. A disadvantage of these two last-mentioned platforms, however, is that inside the washing container, d. H. after installation of the dishwasher visible on the visible to the end user surface of the bottom wall of the washing container plastic and stainless steel is not visible. The end user considers the use of stainless steel in the rinsing container as a special quality feature, so that this platform concept thus appears to be of lower quality for the end user or user of the dishwasher.

From EP 0 556 787 B2 a platform is known having an upper part comprising two side walls, a top wall and a rear wall, in which the housing and the part of the washing compartment formed by the top form a unit and are double-walled, d , H. are made of plastic and are mounted on a mounting base as a base, also made of plastic, which is therefore a different platform concept than described above, in particular because of the use of plastic and the integrated connection between the housing For the visual enhancement, for example, at least part of the visible surface of the bottom of the rinsing chamber, which is formed integrally with the plastic base, may have a metallic surface.

The object of the present invention is therefore to provide a dishwasher with a platform which, on the one hand, is cost-effective and simple to manufacture and, on the other hand, can flexibly represent different platform concepts. The object is also to provide a method for producing such a dishwasher. This object is achieved by an inventive dishwasher according to claim 1 and an inventive method for producing a dishwasher according to claim 42. Advantageous embodiments are the subject of the dependent claims.

In a dishwasher according to the invention comprising a trough with walls open towards the front and the bottom, wherein the trough is arranged on a base part to form a washing container and a bottom wall of the washing container is formed by the base part, the base part comprises a connecting frame as a separate component with the bottom wall of the base part washing.

In a particular embodiment, the base part comprises a base support.

Preferably, the base support is a one-piece frame construction.

In a further embodiment, the base support comprises two foot module strips.

In particular, the base part comprises a floor pan.

In an additional embodiment, the connecting frame is in one or more parts, in particular in two parts.

In a further embodiment, the bottom wall on the connecting frame in the visible region of the washing container is at least partially formed by a foil or an insert of corrosion-free metal, in particular stainless steel, or plastic or by a metal sheet of corrosion-free metal, in particular stainless steel, and these parts are via appropriate interfaces connected to the rest of the connection frame.

Preferably, a frame is applied to the front end of the side walls and the top wall of the trough. - A -

In a supplementary embodiment, the connection frame comprises interfaces for connection to a part of the bottom wall and / or for connection to the base support and / or for connection to the frame and / or for connection to the trough.

In an additional embodiment, the base support includes interfaces for connection to the floor pan and / or for connection to the connection frame.

Preferably, the bottom tray serves to accommodate leakage water and / or serves as a protective device against particular mechanical damage of functional components.

In a further embodiment, the bottom tray includes interfaces for connection to the base carrier.

In particular, the frame includes interfaces for connection to the connection frame.

In a supplementary embodiment, the trough comprises a rear wall, a left side wall, a right side wall and a top wall.

Preferably, the trough is at least partially made of non-corroding metal, e.g. As stainless steel, or plastic.

In a further embodiment, the base part at least partially made of plastic, in particular thermoplastic.

In an additional embodiment, the connection frame with a liquid-tight, closed bottom wall comprises a film, for. B. metal foil, in particular stainless steel foil, for. Example of chromium-nickel steel, or plastic film preferably comprises thermoplastic material with stainless steel effect in the visible portion of the washing container. In a supplementary embodiment, the film is connected during injection molding of the connecting frame made of plastic with the connecting frame, in particular the fact that the film is introduced prior to injection molding in the tool for encapsulation.

In a further embodiment, the connecting frame comprises an insert of corrosion-free metal, in particular stainless steel, for. B. chrome-nickel steel, which is placed on a plastic existing bottom wall of the connecting frame without or with liquid-tight seal against the existing plastic bottom wall of the connecting frame or the insert is spaced, in particular to form a gap to the existing plastic bottom wall of the Connection frame arranged, for example by means of spacers.

In a further embodiment, a liquid-tight, closed bottom wall of the connecting frame is preferably made of plastic.

Preferably, the insert is opposite the connection frame with sealing elements, for. B. of an elastomer, such as EPDM or TPE, or an elastomer, for. As silicone, sealed.

In an additional embodiment, the bottom wall of the connecting frame is at least partially made of a corrosion-free metal sheet or insert, in particular stainless steel, z. As chrome-nickel steel, or made of plastic, wherein the metal sheet or the insert is sealed relative to the connection frame, z. B. by at least one adhesive portion or area or by a gap-free bond between the metal sheet or insert, for example, prepared by injection molding.

In particular, the insert is connected via at least one latching with the connection frame.

In a further embodiment, the metal sheet or insert with sealing elements, for. B. a molded on the connection frame TPE seal, sealed against the connecting frame. Preferably, the bottom wall of the connection frame has at least one opening.

In an additional embodiment, the connection frame is made entirely of corrosion-free metal, in particular stainless steel, z. As chrome-nickel steel, and a liquid-tight closed bottom wall of the connecting frame is formed.

In a further embodiment, the base carrier absorbs the majority of the forces occurring on the base part.

Preferably, the arrangements of metal foil, sheet metal and / or insert are combined on the bottom wall of the connecting frame with each other.

In a supplementary embodiment, the housing is arranged separately or separately from the trough and / or base part.

In particular, the housing is not connected over a large area with the trough and / or base part, d. H. the housing is an independent component relative to the trough.

In a further embodiment, the housing is connected selectively or with small bearing surfaces with fastening means, for example by screwing, riveting or clamping, with a frame construction and / or the rinsing container and / or the base part.

Preferably, the housing consists of at least one wall, for example of coated metal sheets, and preferably comprises two housing side walls and an upper housing wall.

In an additional embodiment, the walls are at a small distance, z. B. in the range of 0.1 to 7 cm, from the walls of the trough and / or the walls of the base part, in particular of the base support arranged. In particular, the base part, in particular the base support, is designed as a shell structure with a bottom wall of the washing container, a rear wall, two side walls, a bottom wall and preferably a front wall.

In a further embodiment, the walls of the base part, in particular base support), openings for repair and maintenance purposes.

In an additional embodiment, the base part, in particular a base support, is formed as a frame structure.

Generally it is a household dishwasher.

Preferably, it is a built-in, solo or built-under dishwasher or a fully integrated dishwasher, but not to a compact or table dishwasher.

In a further embodiment, the base part, in particular the base support, includes interfaces for connection to functional components, eg. As pumps, valves, electrical or hydraulic connectors or electrical switches, d. H. the base part is a mounting floor.

In a supplementary embodiment, the base part or parts of the base part, z. As the connection frame, a base support or a floor pan, fasteners for functional components, eg. As pump, heater, electrical or hydraulic connectors, sieve, sump or water softening device or functional components molded.

In an additional embodiment, the trough, z. As the walls, fasteners for functional components, eg. As pump, heater, electrical or hydraulic connectors, sieve, sump, heat exchanger or water softening device, or molded functional components.

In a method according to the invention for producing a dishwasher, comprising a trough with walls open to the front and the bottom, wherein the trough opens a base part is arranged to form a washing container and a bottom wall of the washing container is formed by the base part, the trough is attached to a connecting frame as a separate component and the connecting frame comprises the bottom wall.

Preferably, the connection frame is attached via interfaces on a base support.

In a further embodiment, a base tray is attached to the base support via interfaces.

In another embodiment, a frame is attached via interfaces at the front end of a left and right Spülbehälterwandung and a Spülbehälterdeckwandung.

In particular, the frame and the connecting frame is first attached to the trough and then the base support is attached thereto.

In an additional embodiment, the base tray is attached to the base support.

Preferably, the frame is first attached to the trough and then attached thereto the connection frame with the base support.

In a further embodiment, the base tray is attached to the base support.

In a further embodiment, the plastic parts of the base part are produced by injection molding.

Preferably, the walls of the trough made of plastic are produced by injection molding.

In a supplementary embodiment, parts of the base part, for. As the connection frame, a base support or a floor pan, fasteners for functional components, eg. As pump, heater, electrical or hydraulic connectors, Sieve, sump or water softening device, or molded functional components.

In a supplementary embodiment, the trough, z. As the walls, fasteners for functional components, eg. As pump, heater, electrical or hydraulic connectors, sieve, sump, heat exchanger or water softening device or functional components molded.

The invention will be explained by way of example with reference to drawings. Show it:

FIG. 1 shows a perspective view of a dishwasher according to the invention,

FIG. 2 shows a perspective view of a platform of a dishwasher according to the invention,

Figure 3 is a perspective view of the base without a bottom wall of a

Platform of a dishwasher according to the invention in a further embodiment,

4 shows a longitudinal section through a connecting frame as a closed variant,

5 shows a longitudinal section through one half of a connecting frame as a closed variant in a further embodiment,

FIG. 6 shows a longitudinal section through one half of a connecting frame as a closed variant in a further embodiment,

7 shows a longitudinal section through one half of a connection frame as a closed variant in a further embodiment, FIG. FIG. 6 shows a longitudinal section through one half of a connecting frame as a closed variant in a further embodiment,

9 shows a longitudinal section through one half of a connecting frame as open

Variant,

Figure 10 is a longitudinal section through one half of a connecting frame as open

Variant in a further embodiment and

11 shows a longitudinal section through one half of a connecting frame as open

Variant in a further embodiment.

FIG. 1 shows a perspective view of a dishwasher 1 according to the invention. The inventive dishwasher 1 has a pivotable about a horizontal axis door 15 for opening and closing the washing container 14 with an upper and lower dish rack 10 for receiving items to be washed, z. B. Household utensils. The lower dish basket moves on rollers on a correspondingly molded runway 12. The door 15 is constructed of an inner door 5 made of a molded stainless steel sheet and an outer door 2 arranged at a distance from the inner door 5 as an outer casing or housing. For example, in the case of a built-in or under-counter dishwasher, an additional covering for adaptation to the kitchen device can be applied to the outer door 2. Below the door 2, a base panel 13 is arranged. At the upper part of the outer door 2 is a control panel 4 for operating the dishwasher 1. To the outer lining of the dishwasher 1 are around the washing compartment 14 and disposed below the washing compartment 14 base member 53, a left side housing 6, a right side housing side wall 7 and an upper housing wall 9 arranged.

Between the walls 1 1, 17, 18 (partially not shown) of the washing compartment 14 and the housing walls 6, 7, 9, for example made of coated sheet metal parts, there is a small distance, for. B. in the range of 0.1 to 12 cm. Between the housing walls 6, 7, 9 and the walls 1 1, 17, 18 (partially not shown) of the washing compartment 14, a single or multi-part front panel 8 is attached to the opening of the washing compartment 14. The housing walls 6, 7, 9 are on the washing container 14 and Trough 40 and / or supporting frame parts, in particular of metal (not shown), via fastening means, for. As screws attached. There is thus a separate housing from the washing container 14, ie the walls of the washing container 14 are not a large area in combination with the housing and the housing side walls 6, 7, 9 have a small distance from the washing container 14th

A portion of the washing container 14 as a forward and downwardly open trough 40 (Fig. 2) is from a left Spülbehälterwandung 11, a right Spülbehälterwandung 18 (not shown), a Spülbehälterrückwandung 19 and a Spülbehälterdeckwandung 17 each by joining method, eg. B. welding, interconnected stainless steel sheets, see Fig. 2. The bottom wall 3 is part of a connecting frame 42, which is part of the base part 53. In order to obtain a metallic appearance, in particular a stainless steel surface, even in the bottom area of the washing compartment 14, an insert 32 made of stainless metal or a stainless steel insert, for example in the visible area, is provided in the connecting frame 42. B. formed by deep drawing stainless steel sheet, molded. The options available for this, in particular interfaces, will be explained below by way of example.

FIG. 2 shows a perspective view of a platform 25 (base part 53 and trough 40 of the washing container 14) of a dishwasher 1 according to the invention. The bottom wall 3 of the washing container 14 is formed by an insert 32 and the connecting frame 42. The base member 53 comprises the connecting frame 42 with insert 32, a base support 43 and a bottom trough 44. The base support 43 constitutes the supporting part of the platform 25. Preferably, in the base support 43 are receptacles (not shown in Fig. 2) for functional components, e.g. , As pumps, heating, electrical or hydraulic connectors available. If there are receiving devices for functional components on the base part 53, in particular on the base support 43, the base part 53 also constitutes a mounting base 16, ie functional components can be mounted in the base part 53. The base support 43 has interfaces 50 for receiving the connection frame 42 and the Spülbehälterbodens 54, which z. B. as elongated, rectangular in cross-section or square recesses may be formed. The bottom wall 3 of the washing container 14 consists of the connecting frame 42 preferably made of plastic and the insert 32 made of corrosion-resistant metal, in particular stainless steel or plastic. The connecting frame 42 and the insert 32 are interconnected via interfaces 48, 52. For example, for this purpose on the connecting frame 42 cylindrical plastic thermo rivets 48 and the insert 32 U-shaped recesses on the upwardly curved, vertically oriented part of the insert 32 may be formed. After placing the connecting frame 42 on the insert 32, the thermo rivets 48 are arranged in the U-shaped recesses of the insert 32. A heated riveting punch melts the thermo rivets 48 made of plastic, so that a cohesive connection between the insert 32 and the connecting frame 42 is formed. Other variants of possibilities for interfaces between the connecting frame 42 and the insert 32 are explained below standing.

On the connection frame 42, an interface 51 is formed as a cross-sectionally rectangular foot 51 for connection to the base support 43. Furthermore, an interface 20 for connection to the support 40, for example in the form of a groove-shaped receptacle 20 (FIGS. 3 and 4) with an outer groove wall 28 and an inner groove wall 29, is provided on the connection frame 42. A left and right Spülbehälterwandung 11, 18 and a Spülbehälterrückwandung 19 is inserted into the groove-shaped receptacle 20 and z. B. bonding and / or screwing to the connecting frame 42. The connection frame 42 also includes an interface for receiving a frame 41.

The frame 41 is positioned at the front end of the left and right rinse tank sidewalls 11, 19 and a rinse tank top wall 17. The frame 41 is used for. B. the stiffening of the platform 25. The frame 41 is made of corrosion-resistant metal, in particular stainless steel, plastic or a metal-plastic composite, in particular stainless steel-plastic composite (hybrid frame).

The plastic parts 42, 43, 44 of the base part 53 are preferably made by injection molding of a thermoplastic material, for. As polypropylene (PP), produced inexpensively. The left Spülbehälterseitenwandung 11, the right Spülbehälterseitenwandung 18, the Spülbehälterdeckwandung 17 and the Spülbehälterrückwandung 19th the trough 40 are made of stainless metal, z. As chrome steel or stainless steel, z. As chrome-nickel steel, but also at least one wall 1 1, 17, 18, 19 of the trough 40 may be made of a different material than stainless steel, for example, the Spül- container cover wall 17 made of plastic. It is z. B. formed stainless steel sheets, which by joining process, for. B. welding, have been joined together.

The base part 53 has the bottom wall 3 of the washing container 14, a rear wall 24, two side walls 23 and a bottom wall 22. In the bottom wall 3, a drain sump 21 is formed. The walls 22, 23, 24 of the mounting base 16 can also smaller and larger openings, for. B. for repair or maintenance purposes, have. For larger openings, the mounting base 16 may also have more of a frame structure than a shell structure.

FIG. 3 shows a further embodiment of a base part 53 without insert 32. The connecting frame 42 has at the top a groove-shaped receptacle 20 as an interface 20 for connection to the trough 40. The groove-shaped receptacle consists of an outer groove wall 28 and an inner groove wall 29. The rear wall 24 of the connecting frame 42 has a receptacle 47, formed as a recess in the rear wall 24, for a counterweight in the dishwasher 1 according to the invention. and right part of the connection frame 42, thermo rivets 48 are formed. In the corners of the connecting frame 42, an interface 51 is provided on the underside as a circular foot 51 in the cross-section. The base support 43 consists of two Fußmodulleisten 45. On the Fußmodulleisten 45 top two interfaces 50 as elongated, circular in cross-section recesses 50 are present. In addition, the Fußmodulleisen have a receiving gap 46 for the bottom tray 44. The bottom tray 44 has a front vertical portion as a cover 49 for the base area.

The components of the platform 25, in particular the trough 40, comprising walls 11, 17, 18, 19, the frame 41 and the base part 53 comprising the connecting frame 42, the base support 43 and the bottom trough 44, may be made of any materials, in particular corrosion-free metal , z. As stainless steel, or plastic, and these components 1 1, 17, 18, 19, 41, 42, 44, 53 are arbitrarily combined with each other and / or mounted. For example, a trough 40 can be preassembled with frame 41 be placed in a final assembly on the base member 53 or a trough 40 with frame 41 and connecting frame 42 including bottom wall 3 are pre-assembled and mounted in the final assembly on the base support 43.

Various exemplary embodiments of a base part 53 will be described in the following FIGS. 4 to 11. These are, in particular, different interfaces for connecting the insert part 32 made of plastic or metal to the connection frame 42. Basically, a variant of a closed base part 53 in FIGS. 3 to 7 and an open base part 53 in FIGS. 8 to 10 distinguished. In the variant of the closed base part 53, the part of the bottom wall 3 of the washing container 14 made of plastic of the connecting frame 42 which does not belong to the insert 32 has no openings 26, ie. H. is closed as shown in Fig. 4. In contrast, the variant of the open base part 53, which has openings 26 in the part of the bottom wall 3 of the washing compartment 14 made of plastic of the connection frame 42 that does not belong to the insert part 32, is provided.

FIG. 4 shows a longitudinal section through the connecting frame 42 of the base part 53 as a closed variant. In the bottom wall 3 of the washing container 14 is a corrosion-resistant film 27, z. B. metal foil 27, in particular stainless steel metal foil 27, z. B. made of chrome-nickel steel, or plastic film with stainless steel effect introduced. For this purpose, the film 27 is introduced during injection molding of the connecting frame 42 made of thermoplastic material prior to introduction of the molten and homogenized plastic in the tool and thereby the film 27 is connected by injection molding with the remaining connection frame 42. The film 27 may also over a larger or the entire region of the visible part of the bottom wall 3 of the washing, z. B. to the runway 12, be arranged (not shown). In the longitudinal section in Fig. 4 is still the drain sump 21, the runway 12 for the lower dish rack 10 (not shown) and the outer groove wall 28 and the inner groove wall 29 for the groove-shaped receptacle 20 recognizable. The tightness and durability of the bottom wall 3 of the connecting frame 42 as part of the washing container 14 is ensured by the not belonging to the film 27 part of the bottom wall 3, so that the film 27 can even be damaged without the tightness suffers. In the following FIGS. 5 to 11, for simplification reasons, only the right-hand part of the connecting frame 42 is shown analogously to FIG. 4.

FIG. 5 shows a longitudinal section through one half of the connecting frame 42 of the base part 53 as a closed variant in a further embodiment. A preformed, z. B. deep-drawn, corrosion-free metal sheet 30, in particular stainless steel Bech, z. B. of chromium-nickel steel, is introduced into the bottom wall 3 of the connecting frame 42. The metal sheet 30 is introduced for this purpose before injection molding in the tool and then back-injected with plastic. This results in a liquid-tight bond between the metal sheet 30 and the remaining plastic part of the bottom wall 3 of the washing container 14 on the connecting frame 42. The left end in Fig. 5 corresponds to the region 31 of the drain sump 21st

In Fig. 6 is a longitudinal section through one half of the connecting frame 42 of the base member 53 as a closed variant in another embodiment with an insert 32 as a preformed corrosion-free metal sheet 32, in particular stainless steel sheet 32, z. B. made of chrome-nickel steel. The insert 32 is not back-injected, but placed on the surface of the part of the bottom wall 3 made of plastic, ie there is an open bond between insert 32 and connecting frame 42 before. Under certain circumstances, preferably a selective fixation of the insert 32 takes place on the existing plastic part of the bottom wall 3 of the connecting frame 42. Thus, there is no liquid-tight connection between the insert 32 and the bottom wall 3, so that wash liquor, for example, at a penetration point 33 between the insert 32nd and the surface of the plastic part of the bottom wall 3 can penetrate. Penetrated rinsing liquor can, however, flow off at an exit point 34 into the drain sump 21, ie in the region 31 of the drain sump 21. Due to the closed variant of the connecting frame 42, the rinse tank 14 is thus still liquid-tight. Under certain circumstances, the insert 32 may be additionally attached, for. B. by a fine screen in the drain sump 21 (not shown). The open composite, ie the laying of the insert 32 on the surface of the bottom wall 3 as part of the connecting frame 42 made of plastic has the advantage that manufacturing and assembly processes the insert 32 can be applied to the connection frame 42 at the optimum time, so that a greater flexibility can be achieved in the production. In Fig. 7 is a longitudinal section through one half of the connecting frame 42 of the base member 53 as a closed variant in a further embodiment with a sealed insert 32 as a preformed, z. B. deep-drawn, corrosion-free metal sheet 32, in particular stainless steel cup 32, z. B. made of chrome-nickel steel. The insert 32 is placed analogously to the embodiment shown in Fig. 6 on the surface of the part of the bottom wall 3 made of plastic. However, there are sealing elements 35, z. As an elastomer, such as EPDM or TPE, or sheet-like sealing material, for. As silicone, between the insert 32 and the surface of the plastic part of the bottom wall 3 is present, so that no wash liquor between the insert 32 and the surface of the bottom wall 3 can penetrate. In addition, between the insert 32, the connection frame 42 an insulation, for. As bitumen, are introduced, it being ensured that the insulation does not come into contact with the rinsing water due to the existing seal. The sealing element 35 in the region 31 of the drain sump 21 is optional.

In Fig. 8 is a longitudinal section through one half of the connecting frame 42 of the base member 53 as a closed variant in another embodiment with a spaced-Einlegeteil 32 as a preformed corrosion-free metal sheet 32, in particular E- delstahlbech 32, z. B. made of chrome-nickel steel. With the help of spacers 36, z. B. in the form of imprints on the underside of the insert 32 or at the top of the part of the bottom wall 3 made of plastic, a gap 37 between the insert 32 and the top of the plastic part of the bottom wall 3 is generated. As a result, rinsing water can penetrate into this gap 37 at a penetration point 33 and drain off into the drain sump 21 at the exit point 34. Due to the better drainage possibility between insert 32 and the connecting frame 42 with respect to the embodiment shown in Fig. 6, the risk is reduced that accumulate in the gap 37 solid particles, which may possibly lead to unpleasant odors.

In a further embodiment, not shown in a figure, the connecting frame 42 preferably consists exclusively of a corrosion-free metal, in particular stainless steel, for. B. chrome-nickel steel. The connection frame in this embodiment may be one-piece or multiple pieces. The connecting frame 42 is thus executed in this embodiment in a closed variant. The connection frame 42 in this embodiment can be produced, for example, by deep drawing. the. The interfaces for connecting the connection frame 42 to the trough 40 may, for. B. in addition to the possibilities described in the other embodiments, for example, by welding or folding done. The seal between connecting frame 42 and trough 40 can be done via sealants such as seals and adhesives.

In FIGS. 9 to 11, the open variant of the connecting frame 42 of the base part 53 is shown. In this variant of the connecting frame 42, an opening 26 in the plastic part of the bottom wall 3 of the washing container 14 on the connecting frame 42 is provided, which is why the connection point between insert 32 and connecting frame 42 must be liquid-tight. The insert 32 may, but need not, provide a contribution to the static stability of the plastic connection frame 42.

FIG. 9 shows a longitudinal section through one half of the connecting frame 42 of the base part 53 as an open variant. The insert 32 as a preformed corrosion-free metal sheet 32, in particular Edelstahlbech 32, z. B. made of chrome-nickel steel, is inserted into the mold during injection molding of the connecting frame 42 made of plastic and molded. This creates a liquid-tight connection between the insert 32 and the remaining connection frame 42, which also has a sufficient temperature resistance. The shape of the insert 32 is achieved for example by deep drawing. By a special shape of the insert 32, for example by arranged at right angles to the plane of the insert 32 corrosion-free metal strip in the region of the end of the insert 32 (the part that is encapsulated), the positive engagement and the tightness between insert 32 and connecting frame 42 is increased , To improve the tightness and the temperature resistance and so-called adhesion promoters can be applied to the insert 32 in those areas that are encapsulated. An alternative is also sealing means between insert 32 and connecting frame 42, for example elastomers, for. B. EPDM or TPE.

FIG. 10 shows a longitudinal section through one half of the connecting frame 42 of the base part 53 as an open variant. The insert 32 as a preformed, z. B. made by deep drawing, corrosion-free metal sheet 32, in particular Edelstahlbech 32, z. As chromium-nickel steel is fixed by means of adhesive portions 39 as an interface on the connection frame 42 and thereby at the same time the required liquid tightness made between the insert 32 and the connecting frame 42. The interface of adhesive portions 39 or adhesive areas 39 also ensures the temperature resistance of the connection. For this purpose, suitable adhesive are required.

In Fig. 11 is a longitudinal section through one half of the connecting frame 42 of the base part 53 is shown as an open variant. The insert 32 as a preformed corrosion-free metal sheet 30, in particular Edelstahlbech 30, z. B. made of chrome-nickel steel, or plastic, is fixed by means of at least one latching 38 on the connection frame 42. The latching 38 may also be arranged at other locations than shown in Fig. 11 (not shown). The sealing element 35, z. B. a molded on the connection frame 42 TPE seal, provides the required tightness between the insert 32 and the plastic part of the bottom wall 3 of the connecting frame 42nd

In this embodiment, as well as in all other embodiments or variants described above, instead of an insert 32 made of metal, an insert 32 may be inserted from plastic or during injection molding of the connecting frame 42, the bottom wall 3 made of plastic such that no additional parts are required, d. H. the entire bottom wall 3 of the washing container 14 during injection molding of the connecting frame 42 is made.

As a result, a bottom wall 3 with a visible metal surface, in particular a stainless steel surface, and a plastic surface can be produced with the same tool for injection molding of the connecting frame 42, depending on whether or not a metal part is used. This thus makes possible a platform concept which is suitable both for low price classes with visible plastic in the bottom area of the washing compartment 14 and for higher price classes with a preferably visible stainless steel surface in the bottom area of the washing compartment 14.

The overmolding technology of metal parts with plastic can be used in addition to the application described above for other applications in a dishwasher. On the base part 53, in particular on the connecting frame 42 made of plastic in the region of the drain sump 21, a fastening element, for. As a mounting ring, for functional components, eg. As a sump, or functional components are molded. With the aid of the fastening ring, the pump pot can be indirectly connected to the connection frame 42 are attached (not shown). In addition, also on the walls 11, 17, 18 and 19 of the trough 40, as far as plastic, fasteners for functional components, such. As well as a heat exchanger, or functional components are molded. Under a heat exchanger, a reservoir for fresh water is understood that due to a thermal bond to the walls 1 1, 17, 18, 19 of the trough 40 during drying, the wall 1 1, 17, 18, 19 cools, so that in this area Wand 1 1, 17, 18, 19 condenses the moisture or water vapor better to increase the drying performance.

Overall, the present dishwasher according to the invention provides a variable platform concept which makes it possible to utilize the advantages in the production method of a prior art platform concept in which the plastic assembly floor forms the bottom wall of the washing container and with the aesthetic and thus marketing-related advantages of a completely made of stainless steel rinsing container to connect.

Claims

1. Dishwasher, at least comprising a rinsing container (14) which is formed from a trough (40) and a base part (53), characterized in that between the trough (40) and the base part (53) a connecting frame (42) is.

2. Dishwasher according to claim 1, characterized in that the trough (40) is open in its installed position forward and down.

3. Dishwasher according to claim 1 or 2, characterized in that the base part (53) has a bottom wall (3).

4. Dishwasher according to one of the preceding claims, character- ized in that the base part (53) comprises a base support (43).

5. Dishwasher according to claim 4, characterized in that the base carrier (43) is a one-piece frame construction.

6. Dishwasher according to claim 4 or 5, characterized in that the base support (43) comprises two Fußmodulleisten (45).

7. Dishwasher according to one of the preceding claims, characterized in that the base part (53) comprises a bottom trough (44).

8. Dishwasher according to one of the preceding claims, characterized in that the connecting frame (42) is formed in one or more parts, in particular two parts.

9. Dishwasher according to claim 3, characterized in that the bottom wall (3) in the visible region of the washing container (14) at least partially of a film (27) or an insert part (32) of corrosion-free metal, in particular

ADJUSTED SHEET (RULE 91) ISA / EP or stainless steel, or plastic, or of a metal sheet (30 of corrosion-free metal, in particular stainless steel, is formed and these parts (27, 20, 32) via corresponding interfaces with the other connection frame (42) are connected.

10. Dishwasher according to one of the preceding claims, characterized in that at the front end of side walls (11, 18) and the top wall (17) of the trough (40), a frame (41) is applied.

11. Dishwasher according to one of the preceding claims, character- ized in that the connecting frame (42) interfaces for connection to a part (27, 30, 32) of the bottom wall (3) and / or for connection to the base support (43) and / or for connection to the frame (41) and / or for connection to the trough (40).

12. Dishwasher according to one of claims 7 to 11, characterized in that the base support (43) comprises interfaces for connection to the bottom trough (44) and / or for connection to the connecting frame (42).

13. ' Dishwasher according to one of claims 7 to 12, characterized in that the bottom trough (44) for receiving leak water and / or as

Protective device against particular mechanical damage of functional components is used.

14. Dishwasher according to one of claims 7 to 13, characterized marked, that the bottom trough (44) interfaces for connection to the base support

(43). ^'

15. Dishwasher according to one of claims 10 to 14, characterized in that the frame (41) comprises interfaces for connection to the Verbindungsrah- men (42).

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16. Dishwasher according to one of the preceding claims, characterized in that the trough (40) comprises a rear wall (19), a left side wall (11), a right side wall (18) and a top wall (17).

17. Dishwasher according to one of the preceding claims, character- ized in that the trough (40) at least partially made of corrosion-resistant metal, for. As stainless steel, or plastic.

18. Dishwasher according to one of the preceding claims, characterized in that the base part (53) consists at least partially of plastic, in particular thermoplastic plastic.

19. Dishwasher according to one of the preceding claims, characterized in that the connecting frame (42) with a liquid-tight, closed bottom wall (3) a film (27), z. B. metal foil (27), in particular stainless steel foil (27), z. Example of chromium-nickel steel, or plastic film (27) preferably made of thermoplastic material with stainless steel effect in the visible portion of the washing container (14).

20. Dishwasher according to claim 19, characterized in that the film (27) by injection molding of the connecting frame (42) made of plastic with the connecting frame (42) is connected, in particular by the fact that the film (27) before injection molding in the tool for Injection is introduced.

21. Dishwasher according to one of the preceding claims, character- ized in that the connecting frame (42) has an insert (32) made of corrosion-resistant metal, in particular stainless steel, for. B. chromium-nickel steel, which is placed on a plastic existing bottom wall (3) of the connecting frame (42) without or with liquid-tight seal against the plastic existing bottom wall (3) of the connecting frame (42) or the Ein- laying part (32) spaced, in particular to form a gap (37), from

Plastic existing bottom wall (3) of the connecting frame (42) is arranged, for example by means of spacers (36).

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22. Dishwasher according to claim 21, characterized in that a liquid-tight, closed bottom wall (3) of the connecting frame (42) is preferably made of plastic.

23. Dishwasher according to claim 21 or 22, characterized in that the insert part (32) relative to the connecting frame (42) with sealing elements (35), z. B. of an elastomer, such as EPDM or TPE, or an elastomer, for. As silicone, is sealed.

24. Dishwasher according to one of the preceding claims, character- ized in that the bottom wall (3) of the connecting frame (42) at least partially by a corrosion-free metal sheet (30) or insert (32), in particular stainless steel, for. As chromium-nickel steel, or plastic, wherein the metal sheet (30) or the insert (32) relative to the connection

, sealing frame (42) is sealed, in particular by at least one adhesive portion or region (39) or by a gap-free bond between the metal sheet (30) or insert (32), for example produced by injection molding.

25. Dishwasher according to one of claims 9 to 24, characterized in that the insert part (32) via at least one latch (38) with the connection frame (42) is connected.

26. Dishwasher according to one of claims 9 to 25, characterized in that the metal sheet (30) or insert (32) with sealing elements (35), z. B. on the connection frame (42) molded TPE seal, relative to the connecting frame (42) is sealed.

27. Dishwasher according to one of claims 3 to 26, characterized in that the bottom wall (3) of the connecting frame (42) has at least one opening (26).

28. Dishwasher according to one of the preceding claims, characterized in that the connecting frame (42) made entirely of corrosion-free metal, in particular stainless steel, for. As chrome-nickel steel, and a liquid

ADJUSTED SHEET (RULE 91) ISA / EP dense density closed bottom wall (3) of the connecting frame (42) is formed.

29. Dishwasher according to one of the preceding claims, characterized in that the base support (43) absorbs the majority of the forces acting on the base part (53).

30. Dishwasher according to one of claims 9 to 29, characterized in that the arrangements of metal foil (27), metal sheet (30) and / or insert (32) on the bottom wall (3) of the connecting frame (42) are combined with each other ,

31. Dishwasher according to one of the preceding claims, character- ized in that the housing is arranged separately or separately from the trough (40) and / or base part (53).

32. Dishwasher according to one of the preceding claims, characterized in that the housing is not connected over a large area with the trough (40) and / or base part (53), d. H. the housing is an independent component relative to the trough (40).

33. Dishwasher according to one of the preceding claims, characterized in that the housing selectively or with small contact surfaces with fastening means, in particular screw connections, rivets or jamming, with a frame construction and / or the washing container (14) and / or the base part (53). connected is.

34. Dishwasher according to one of the preceding claims, characterized in that the housing consists of at least one wall (6, 7, 9), for example made of coated metal sheets, and preferably two housing side walls (6, 7) and an upper housing wall ( 9).

35. Dishwasher according to claim 34, characterized in that the walls (6, 7, 9) at a small distance, in particular in the range of 0.1 to 7

REPORTED SHEET (RULE 91) ISA / EP cm, from the walls (11, 17, 18) of the trough (40) and / or the walls

(23, 24) of the base part <53), in particular of the base support (43) are arranged.

36. Dishwasher according to one of the preceding claims, characterized in that the base part (53), in particular the base support (43), as a shell structure with a bottom wall (3) of the washing compartment (14), a rear wall

(24), two side walls (23), a bottom wall (22) and preferably a front wall is formed.

37. Dishwasher according to one of claims 34 to 36, characterized marked, that the walls (3, 22, 23, 24) of the base part (53), in particular base support (43), openings for repair and maintenance purposes.

38. Dishwasher according to one of the preceding claims, characterized in that the base part (53), in particular a base support (43), is formed as a frame structure.

39. Dishwasher according to one of the preceding claims, characterized in that it is a household dishwasher.

40. Dishwasher according to claim 38, characterized in that it is a built-in, solo or substructure dishwasher or a fully integrated dishwasher, but not a compact or tableware dishwasher.

41. Dishwasher according to one of the preceding claims, characterized in that the base part (53), in particular the base support (43), interfaces for connection to functional components, in particular pumps, valves, electrical or hydraulic connectors or electrical switches.

42. Dishwasher according to one of the preceding claims, characterized in that on the base part (53) or parts of the base part (53), in particular the connecting frame (42), a base support (43) or a bottom trough (44), fastening parts for functional components, especially pump, heating, electrical

ADJUSTED SHEET (RULE 91) ISA / EP see or hydraulic connectors, sieve, sump or water softening device or functional components are molded.

43. Dishwasher according to one of the preceding claims, characterized in that the trough (40), in particular the walls (11, 17, 18, 19), fastening parts for functional components, in particular pump, heater, electrical or hydraulic connectors, sieve, sump , Heat exchanger o- the water softening device or functional components are molded.

44. A process for producing a dishwasher, comprising a trough (40) with walls (11, 17, 18, 19) open in front and at the bottom, the trough

(40) on a base part (53) is arranged to form a washing container (14) and a Bodenwaπdung (3) of the washing container (14) from the base part (53) is formed, characterized in that the trough (40) on a connecting frame ( 42) is fastened as a separate component, and the connecting frame (42) comprises the bottom wall (3) of the washing container (14).

45. The method according to claim 44, characterized in that the connection frame (42) is fastened via interfaces (50, 51) on a base support (43).

46. The method according to claim 44 or 45, characterized in that a base tray (44) is fastened to the base carrier (43) via interfaces.

47. The method according to any one of claims 44 to 46, characterized in that at the front end of a left and right Spülbehälterwandung (11, 18) and a Spülbehälterdeckwandung (17) a frame (41) is attached via interfaces.

48. The method according to claim 47, characterized in that first the frame (41) and the connecting frame (42) is attached to the trough (40) and then the base support (43) is attached thereto.

49. Method according to claim 48, characterized in that the base tray (44) is attached to the base carrier (43).

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50. The method according to claim 47, characterized in that the frame (41) is first attached to the trough (40) and then the connection frame (42) is attached to the base support (43).

51. The method according to any one of claims 44 to 50, characterized in that the base support (43) a bottom trough (44) is attached.

52. The method according to any one of claims 44 to 51, characterized in that the plastic parts (3, 42, 43, 44, 54) of the base part (53) are produced by injection molding.

53. The method according to any one of claims 44 to 52, characterized in that the existing plastic walls (11, 17, 18, 19) of the trough (40) are produced by injection molding.

54. The method according to any one of claims 44 to 53, characterized in that on parts (42, 43, 44) of the base part (53), in particular the connecting frame (42), a base support (43) or a bottom trough (44), fastening parts For functional components, in particular pump, heating, electrical or hydraulic connectors, sieve, sump or water softening device, or functional components are molded.

55. The method according to any one of claims 44 to 54, characterized in that the trough (40), in particular the walls (11, 17, 18, 19), fastening parts for functional components, in particular pump, heater, electrical or hydraulic connectors, sieve , Sump, heat exchanger or water softening device or functional components are molded.

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