EP1548367B1 - Device for closing the cavity opening of a household appliance - Google Patents

Abstract

The two door hinges are mounted at the bottom corners of a door which stands up vertically when closed and lies in a horizontal position when open. Each fixed hinge band (3) is of inverted U-section and is fastened to the frame of the cooker or freezer. The fixed hinge band contains coil springs under tension, arranged to compensate for the weight of the door as it is opened. The sides (30) contain threaded bushes (33,34) and a slit parallel to its long axis. Each movable hinge band (4) is a thin blade hinged (6) to the end of the fixed band and has a stop (7) to limit the swiveling motion.

Description

The invention relates to a device for closing the access opening of an interior of a household appliance, in particular a household oven, a household refrigerator and / or freezer, a household dishwasher or a household washing machine.

Out EP 1 106 932 A2 is a door for a Garofen, preferably for the household, known with at least two spaced apart support elements, which are made of a temperature-resistant mechanically stable polymer material, in particular a thermoplastic or a thermosetting polymer material, and with an outer pane, with which the support elements via one Adhesive connection are connected. On the two support elements receiving means and / or fastening means are arranged, which are formed with the associated support member as a continuous molding and for receiving or securing another door pane, in particular an inner pane or washer, and / or at least one other door component, in particular in each case a door hinge and / or at least a third door pane and / or a door handle are provided. One or more of the functional parts of the door, in particular the door handle or at least one of the door panes, may be integrated with the carrier elements to form common moldings and then consists of a common polymer material. The support elements can be used as hollow profile parts, but also be solid. As suitable high temperature resistant plastics are in EP 1 106 932 A2 in column 7, from line 33 to column 8, line 5, given some possible plastics. A cooking oven with a furnace muffle with a feed opening for the introduction of food to be cooked is then equipped with such a door for closing the feed opening.

To move this known door relative to the loading opening two door hinges are provided as connecting elements for connection to the rest of the cooking oven, which are each mounted in a cavity of the support member or on a support member, preferably resiliently. Such resilience can be achieved, for example, with a snap or snap connection, which then the power surges are damped when opening the door from the door hinge on the support member. The two support elements of the known door extend to the lower edge of the outer pane and each have a vertical slot-shaped opening for performing the in the housing of the Garofens to be fastened and with respect to the hinged part located in the support member hinge part.

In Applicant's household cooking ovens or stoves available on the market, a door can be pivoted about a pivot axis extending horizontally under the door by means of two door hinges. The door hinges each have in cross-section U-shaped hinge housing made of sheet steel, in each of which two embossments are provided with metric threads for attaching the hinge in similar to the in EP 1 106 932 A2 described constructed and arranged, but formed of sheet metal carrier elements. Within the hinge housing, a tension spring is arranged, which is designed as a helical spring and a restoring force on the opened door to push the door when opening or the movement upwards against the feed opening or its edge. This also causes a damped movement of the door down to the open position. One end of the tension spring is connected at the end of the housing by a bolt to the housing. The other end of the tension spring is also suspended in a bolt which is movably guided in two elongated holes of the housing. This further pin actuates a pull lever, which is connected via a further bolt with a Festarm. The arm exits or protrudes from the hinge housing and connects to the hinge bearing on the hearth body. When turning the Festarmes for example, 87 degrees, the built-tension spring is stretched by 12 mm. If the closed door is opened by pivoting down, so the arm of each hinge via the pull lever actuates the tension spring, which is stretched more and more with increasing door opening angle. When the door is open, the spring force is approximately equal to the total weight of the door to prevent the door from falling too fast. In the end position at maximum opening angle stops are provided by which the door can not be pivoted further down. The spring force of the tension spring is assigned individually to the respective door weight. To close the door, a further, arranged in the hinge housing compression spring is used in addition to the tension spring, which is supported in the pull lever on one side, guided by a connecting rod, which actuates the pressure lever via a bolt. The pressure lever is arranged as a U-shaped rocker and presses on the front edge of the Festarmes. The roller mounted in the pressure lever rolls over the contour or front edge of the Festarmes. When the door is open at an angle of approx. 30 degrees, an ever-increasing air gap is created between the roller and the fixed arm edge. When you close the door presses the role over the last 30 degrees increasingly against the Festarmkante. By a corresponding contour of the hard arm now, for example, a kind of open door at 15 degrees or by the Festarmkontur supported contact pressure of the door when closing is increased or reduced.

The hinge housing with the functional parts therein is thus integrated in this as well as in most of the devices on the market in the door, while hinged in the hinge bearing and mounted counter lever of the hinge, which is often referred to as a hinge sword, in the housing of the Garofens is usually attached below or to the side of the feed opening. Furthermore, the known hinge also comprises a so-called release lever, which makes it possible only by his position to mount or unhinge the hinge in the hinge bearing.

Out DE 198 24 148 A1 Another door hinge for cooking ovens is known with only one tension spring and corresponding transmission mechanisms, wherein also the hinge housing is arranged with the tension spring in the door and only the protruding from the door housing lever or arm in the associated seat or hinge bearing is attached to the side of the feed opening.

Also the DE 696 14 247 T2 discloses a similarly constructed door hinge for a cooking oven with integrated in the door hinge housing with tension spring and other mechanical parts and a fixed to the housing of the oven Festarm or lever arm. The connection between the spring and the hook-shaped tension member is made by a pair of rollers which are coaxially and rotatably mounted on a shaft and run along the inside of the rear wall of the frame during the movement of the tension member and the extension or compression of the tension spring. In a middle section of the lever Near its exterior, a pivotal blocking device or locking lever is mounted to hold the oven door or oven door in a middle, open position. The hinge according to DE 198 24 148 A1 has a frame with a U-shaped cross section, which is firmly connected to the oven door and having a pin in which one end of a lever is rotatably mounted. Another end of the lever extends outside the frame and is fixedly inserted in a seat laterally of the feed opening of the hearth. The frame is thus pivotable with respect to the lever about the axis of the pin, whereby an axis of rotation or pivot axis is formed for the door. It is also arranged in the frame, a tension spring, which counteracts the pivoting movement of the door when opening. One end of the tension spring is connected to the frame and the other end to the middle portion of the lever via a bent steel wire tension member. This tension element is inserted in a recess which is formed in an edge region of the lever and with the oven door closed with respect. The axis of the pin forms a lever arm for the tensile force exerted by the tension spring to increase the closing force when closing the door.

Out EP 0 723 116 A2 an oven door is known in which two vertically and parallel to each other, substantially U-shaped support members made of aluminum are glued to an outer pane. The support elements extend to the lower edge of the outer pane and take down each a door hinge part with a tension spring. For performing the respective other, attached to the housing of the oven door hinge part an opening in each support member is formed in each case. The support elements have on their inner sides grooves for receiving an inner pane which covers the entire feed opening. Between the outer pane and the inner pane is an open space below made to cool the door by natural air convection.

In addition to such door hinges, in which the hinge housing is arranged with the tension spring in the door itself, and door hinges are known in which the free lever arm or fixed arm is fixed in the door and the remaining parts, including the tension spring are fixed in or on the housing of the Garofens , Such door hinges are for example off DE 1 779 221 B1 or DE 2 025 542 A or DE 26 02 275 A1 or DE 2 037 243 A or DE 44 43 098 A1 or DE 39 33 719 C2 or DE 195 48 512 A1 or DE 196 04 435 C2 known.

In DE 196 04 435 C2 are attached to a door for closing a baking oven muffle hearth in the bottom area in two lateral areas in each case a carrier part. In each carrier part in each case a plug-in part of a hinge is inserted and mounted pivotably on a hinge axis. With a bearing hook the male part is hooked on the other side in a receiving area of a hinge holder, which is attached to the stove or a mounting rail of the stove. The pivot bearing for pivoting the door is thus arranged in this known hinge mechanism in the door. About tension springs is in DE 196 04 435 C2 nothing stated.

At the loading door for a household electric stove according to DE 39 33 719 C2 is a directed against the inertia of the loading door in the open position acting pneumatic damper in conjunction with a spring element coupled to the loading door such that the counteracting influence is essentially limited to the pivoting opening range between about 45 ° to the perfect opening. The damper is located in the hearth housing and connected via a lever mechanism with the loading door. The lever mechanism includes an angle lever, of which an angle arm is connected to the damper via a hinge and the second angle arm is inserted into the door and is releasably secured by means of a handle operated by a closure.

At the DE 44 43 098 A1 known electric stove is a door pivotally mounted about a horizontal axis on the device housing via a hinge. The hinge comprises a hinged band fastened to the housing and a bracket which is rotatably connected via a bolt to the hinge band and which is fastened from the inside to the appliance door, that is to say at the inner side thereof facing the charging opening of the electric cooker. Furthermore, a damping device is provided which dampens the movement of the door during the opening and / or closing process.

At the DE 20 37 243 A1 known door pivoting device for a domestic stove are hinged to the two narrow sides of the door support members, which are connected to the pivotal mounting of the door on the device via two Hebelarmsysteme and a tension spring as a hinge to the housing of the device. The lever arms do not engage in the door, but are fastened from the outside.

The German patent application DE 1 779 221 discloses an aushängbare oven door for cookers, which is designed as a hollow body and in the interior of an approximately U-shaped guide bracket is attached. On the inner wall of the door facing the frying space, a recess extending upwards in the longitudinal direction of the guide bar is provided. On the muffle frame a hinge is attached with a fixed bearing arm and a horizontally movable bearing arm. On the movable bearing arm engages a door tension spring of the hinge immediately. The two bearing arms are connected by a guide rail on which the Bratofentür with the guide bracket is attachable. The guide rail engages with a nose plugged door and under the action of the door spring in a recess in the guide bracket of the door, so that the guide rail hooked firmly in the door. On the movable bearing arm a securing bracket is arranged, which releases or blocks depending on the position acting on the bearing arm force of the door spring. The two bearing arms are guided through the recess in the inner wall.

Out US 3,304,932 is a removable oven door known for a household stove. The oven door is attached to the stove by means of a hinge. The hinge comprises a curved piece, which is retractable in the side wall of the furnace. The curved piece is fixed by means of a spring and a roller on the housing of the furnace.

In all these known doors, at least one hinged part fixed to the housing is either guided past the side wall of the door or guided through an opening in the inner wall of the door facing the charging opening and moves up and down in this opening when the door is pivoted. When passing the hinge part laterally past the door side walls, space for the viewing window formed in the door is laterally lost. When the hinge part is passed through an opening or a slit in the inner wall of the door, dirt, in particular vapors (gaseous fumes) or liquid residues, can enter the interior of the door through this opening, in particular when the door is horizontally open. In particular, this dirt can attack or corrode the hinge parts (3, 3 ', 4, 4') in the door.

The invention is based on the object at least partially overcome or at least alleviate these problems in the prior art.

This object is achieved according to the invention by a device having the features of claim 1.

According to the invention, it is provided that the channel wall of each receiving channel has an opening on the outer pane facing the outside, which opening is spaced from the receiving opening.

Advantageous embodiments, developments and applications of the device according to the invention will become apparent from the dependent claims of claim 1.

FIG 1

ein Türscharnier bei minimalem Schwenkwinkel,

FIG 2

das Türscharnier gemäß FIG 1 bei einem zwischen mi- nimalem Schwenkwinkel und maximalem Schwenkwinkel liegenden mittleren Schwenkwinkel,

FIG 3

das Türscharnier gemäß FIG 1 oder FIG 2 bei maxima- lem Schwenkwinkel,

FIG 4

das Türscharnier gemäß FIG 1 in einer geschnittenen Seitenansicht,

FIG 5

eine Tür eines Haushaltsgerätes mit einer Außen- scheibe und zwei daran befestigten Trägerelementen,

FIG 6

die Tür gemäß FIG 5 im Zustand einer Montage zweiter Türscharniere in Aufnahmekanäle an den Trägerelemen- ten,

FIG 7 und 8

jeweils in einer Schnittdarstellung die Montage oder Demontage des Türscharniers in der Tür,

FIG 9

eine Tür für ein Haushaltsgerät mit montierten Tür- scharnieren und einem Luftführungselement,

FIG 10

die Tür gemäß FIG 9 in einer um 90° gedrehten An- sicht,

FIG 11

ein Haushaltsgarofen mit abgenommener Tür in einer Frontansicht,

FIG 12

ein Haushaltsgarofen gemäß FIG 11 mit einer montier- ten Tür in einer teilweise geschnittenen Seitenan- sicht und

FIG 13

eine Tür eines Haushaltsgerätes mit einem durch zwei Abdichtelemente geschlossenen Türinnenraum

jeweils schematisch dargestellt sind. Einander entsprechende Teile oder Größen sind in den FIG 1 bis 13 mit denselben Bezugszeichen versehen.The invention will be explained below with reference to exemplary embodiments. Reference is made to the drawings, in which

FIG. 1

a door hinge with minimum tilt angle,

FIG. 2

the door hinge according to FIG. 1 at a mean pivot angle between minimum pivot angle and maximum pivot angle,

FIG. 3

the door hinge according to FIG. 1 or FIG. 2 at maximum tilt angle,

FIG. 4

the door hinge according to FIG. 1 in a sectional side view,

FIG. 5

a door of a domestic appliance with an outer pane and two support elements attached thereto,

FIG. 6

the door according to FIG. 5 in the state of mounting second door hinges in receiving channels on the carrier elements,

FIGS. 7 and 8

each in a sectional view, the assembly or disassembly of the door hinge in the door,

FIG. 9

a door for a household appliance with mounted door hinges and an air guide element,

FIG. 10

the door according to FIG. 9 in a view rotated by 90 °,

FIG. 11

a household oven with the door removed in a front view,

FIG. 12

a household oven according to FIG. 11 with a mounted door in a partially sectioned side view and

FIG. 13

a door of a household appliance with a door closed by two sealing elements door interior

are each shown schematically. Corresponding parts or sizes are in the 1 to 13 provided with the same reference numerals.

The door hinge 2 according to 1 to 4 has a first hinge part 3 and a second hinge part 4 pivotably mounted on the first hinge part 3 via a pivot pin 6 about a pivot axis A. The minimum pivot angle between the two hinge parts 3 and 4 is in FIG. 1 and FIG. 4 represented and labeled with amin, and is typically 90 ° or a few degrees less. A locking member 7 locks the second hinge part 4 in the position at amin FIG. 1 , The maximum swing angle is in FIG. 3 represented by αmax and is typically 180 ° or a few degrees less. This swivel range is limited or fixed by stops. FIG. 2 shows a middle position with a swivel angle α, for the αmin ≤ α ≤ αmax applies. The direction of rotation shown by the arrow corresponds to a widening pivot angle α.

As a second hinge part 4, an elongated and flat or flat trained hinge arm or hinge lever is provided, because of its sword-like shape as a hinge sword or short sword can be called. The second hinge part 4 is formed substantially linearly and has a facing away from the first hinge part 3 free end 47, on an outer narrow side of a substantially flat or planar outer surface 46 and on an inner narrow side of a complex multi-step inner surface and two narrow sides connecting flat broadsides or flat sides.

On the inside of the second hinge part 4 are seen from the free end 47 ago first a locking projection 41, then a recessed relative to the latching projection 41 and parallel to the outer surface 46 extending contact surface 42, then a respect to the contact surface 42 set back recessed 43, then a stop projection 44th with a perpendicular to the contact surface 42 and the outer surface 46 adjoining the recess 43 stop surface 45, then arranged opposite to the stop projection 44 back staggered locking surface 48 and finally a guide surface 49. The abutment surface 45 separates a first part 4A from a second part 4B of the second hinge part 4.

The stop projection 44 projects further outward than the latching projection 41 and serves as a stop when inserting the second hinge part 4 in a receptacle of a door, as will be explained below. The guide surface 49 has a trapezoidal longitudinal section so three different inclined slopes, and serves as a guide for a only in FIG. 4 shown torque device 5 in the first hinge part 3, as also still running.

Within a longitudinally and linearly formed hinge housing 30, the first hinge part 3 comprises a torque device 5, which at least in certain pivoting angle positions generates a torque corresponding to the rotational movement in the in 1 to 3 counteracts rotation shown, that is antiparallel directed to the torque, for pivoting the two hinge parts 3 and 4 against each other in the in 1 to 3 must be expended turned sense.

The torque device 5 of the first hinge part 3 comprises in the example of FIG. 4 a guide roller 52, which rolls on the guide surface 49 of the second hinge part 4, a connected to the roller 52 U-shaped rocker 53 as a pressure lever, coupled to the rocker 52 compression spring 51 which is supported in a pull lever 55 and then a tension spring 50th which is connected at one end by a bolt to the hinge housing 30 and the other end is suspended in a bolt 55 which is movably guided in two slots 35 of the hinge housing 30. This further bolt 55 actuates the pull lever 55 which is pivotally connected about the pivot axis A at the opposite end via the pivot pin 6 as a pivotal connection with the second hinge part 4. When turning the second hinge part 4 and increasing the opening angle or swivel angle a, the tension spring 50 is stretched more and more and exerts an ever-increasing elastic restoring force. Thus, a torque, in particular the weight of a door attached to the hinge when opening can be compensated. The compression spring 51 is connected to the rocker 52 via a connecting rod and a bolt and counteracts the (residual) tensile force of the tension spring 50 at small pivoting angles α. Tension spring 50 and compression spring 51 are each formed as a helical spring. The rocker 52 presses with the roller 52 on the guide surface 49 at the end edge of the second hinge part 4 and the roller 52 rolls on movement of the second hinge part 4 relative to the first hinge part 3 via the guide surface 49 or contour or end edge of the second hinge part 4. From approx 120 ° is formed when opening the hinge an ever-increasing air gap between the roller 52 and guide surface 49. When closing the door hinge 2 presses the roller 42 against the last 30 degrees more and more against the guide surface 49. The trapezoidal contour of the guide surface 49 can now For example, a kind of open position of the door hinge 2 at α = 105 ° or achieved and / or the contact pressure of the door hinge and thus the door when closing be strengthened or reduced. This structure of the torque device 5 according to FIG. 4 is in itself known from the known hinge mentioned in the Applicant's devices. However, other mechanisms can be used.

FIG. 5 shows a door 8, for example, for a Haushaltsgarofen, with an outer pane 10 at one of a feed opening or access opening of a in FIG. 5 not shown muffle interior of the oven facing away from the door 8 and two attached to the outer pane 10 support members 11 and 12, which are parallel to each other and, with the door closed, vertical. In the case of the rectangular outer pane 10, the carrier elements 11 and 12 extend in particular at a distance from the lateral edges of the outer pane parallel to these side edges and perpendicular to the upper and lower edges of the outer pane 10. Each of the carrier elements 11 and 12 has a connecting flange 61 and 62, over which the support member 11 and 12 glued to the outer pane 8, or in the case of an outer pane 10 made of plastic, is also welded.

Perpendicular to the outer pane 10 inwardly extending from the connecting flange 61 and 62 away disk holding parts 63 and 64, which respectively have grooves 65 and 66 on the mutually facing inner sides for further door windows. The Receiving grooves 65 and 66 are on one side, usually the bottom, completed with a support member 67 and 68, which are supported in the receiving grooves 65 and 66, door panes. At the opposite ends of the grooves 65 and 66, the grooves are open for parallel insertion of the door glass. Furthermore, the receiving grooves 65 and 66 may also be associated with snap-action or latching elements for holding the door panes, as in FIG FIG. 5 shown, but unspecified.

As an alternative to receiving grooves, stepped receptacles for the door panes can also be provided, in which the door notches decrease at least in the dimension between the carrier elements from the outside inwards, so that they can be inserted one after the other into the door in steps or steps from the inside.

At the facing away from the mutually facing inner sides with the receiving grooves 65 and 66 of the door holding parts 63 and 64 outer sides is now a respective receiving channel 16 and 17 integrally formed, the linear and parallel to the outer pane 10 and the door holding part 63 and 64 of the associated Carrier element 11 and 12 runs. At the same height as the support members 67 and 68, the receiving channels 16 and 17 open into a respective rectangular receiving opening 23 and 24, respectively for receiving the second hinge part 4 of a door hinge 2 according to an embodiment 1 to 4 is provided, which will be explained in more detail below.

FIG. 6 shows the mounting (or dismantling) of two door hinges 2 and 2 'on a door 8, wherein the door 8 has an inserted in the uppermost of the receiving grooves 65 and 66 inner disk 13. The cross section of each receiving channel 16 and 17 corresponds to at least one of the receiving opening 23 and 24 adjacent region of the cross section of the receiving opening 23 and 24, respectively, and is adapted to the cross section of the first part to be inserted 4A and 4A 'of the second hinge part 4 and 4' of the associated door hinge 2 and 2 '. In this case, the cross section of the receiving opening 23 or 24 is selected to be slightly larger than the cross section of the first part 4A according to the 1 to 4 at the free end 47 with the latching projection 41, but chosen smaller than the cross section of the second part 4B in the region of the stop projection 44. As a result, the first part 4A and 4A 'of the second hinge part 4 and 4' of the respective door hinge 2 and 2 respectively 'over its entire length in the receiving channel 16 or 17 linearly inserted as a sword in an associated scabbard and this insertion is terminated or limited when the stop surface 45 and 45' of the second hinge part 4 and 4 'on the channel wall 26 and 27 of the associated receiving channel 16 or 17 abuts in the receiving opening 23 or 24 surrounding edge region. The second part 4B or 4B 'of the second hinge part 4 or 4' lying behind the stop surface 45 or 45 'remains outside of the receiving channel 16 or 17.

For mounting, the first hinge parts 3 and 3 'attached thereto before or after mounting the door 8 in the housing of the household oven, preferably screwed, wherein for supporting the first hinge parts 3 and 3' of the door hinges 2 and 2 'in each case a bottom plate of the Garofens can be used (see also FIGS. 11 and 12 ). The pivoting angle α at which the door 8 is mounted on the second hinge parts 4 and 4 'of the door hinges 2 and 2', which are locked relative to the first hinge parts 3 and 3 ', for example by means of the locking lever 7, is somewhat smaller, typically around some Degree, for example, 7 ° to 10 ° smaller than the maximum tilt angle αmax.

7 and FIG. 8 show in a sectional view the mounting or dismounting of the sword or second hinge part 4 in the associated receiving channel 16 of the associated support member 11 of the door eighth FIG. 7 already shows the finished locked state, resulting from the pre-assembled state according to FIG. 8 at the mounting angle β, which is the difference between αmax and the illustrated angle α in FIG. 6 corresponds, shows. Looking now in the order first FIG. 8 and then FIG. 7 , so you can see the assembly, in the reverse order of FIG. 7 to FIG. 8 In contrast, the disassembly of the door hinge 2 from the door. 8

The first part 4A of the second hinge part 4 is already fully inserted into the receiving channel 16, wherein both the locking projection 41 and the contact surface 42 and the free jump 43 from the associated inner wall 26 of the receiving channel 16 are still spaced because of the corresponding inclination of the second hinge part 4. The opposite outer surface 46 rests on a front region of the outer wall 25 of the receiving channel 16 and can deform it slightly in a region facing away from the receiving opening 23. To support this possible deformation and in any case as a free space for the inclination and corresponding tilting movement of the second hinge part 4 in the receiving channel 16 is spaced from the receiving opening 23 inwardly a slot-like opening or opening 29 in the outer wall 25 of the receiving channel 16 to the outer pane 10 back educated. By a tilting movement of the door 8 in the direction of the illustrated sense of rotation of the pivot angle α to the second hinge part 4 out brings you the locking projection 41 into engagement with an associated recess 28 in the inner wall 26 of the receiving channel 16. At the same time then lies the plane bearing surface 42 on the flat inside the inner wall 26 of the receiving channel 16 on and opposite and axially offset the outer surface 46 abuts against the inside of the outer wall 25 of the receiving channel. At the same time, the axial distance between the recess 28 in the inner wall 26 of the receiving channel 16 on the one hand and the receiving opening 23 on the other hand exactly matched to the distance between the stop surface 45 and this stop surface 45 facing side of the locking projection 41 on the second hinge part 4. This is the second Hinge part 4 with its first part 4A firmly anchored in the receiving channel 16 and fixed by the mutually inclined opposite bearing and the stop surface 45 and the latching projection 41 in the Raustausnehmung 28. When unlocking the hinge 2 is now the maximum tilt angle amax, as in FIG. 7 shown and the assembly of the door hinge 2 with the door 8 is completed.

The outer wall 25 of the receiving channel 16 is spaced from the outer pane 10 and thereby holds the second hinge part 4 and thus also the entire hinge 2 at a distance from the outer pane 10th

FIG. 9 shows the door 8 with mounted door hinges 2 and 2 ', which are usually already in the in FIG. 9 Housing not shown housing the Garofens are pre-assembled. The second hinge parts 4 and 4 'are inserted into the receiving channels 16 and 17 and locked or fixed there. By pivoting the second hinge parts 4 and 4 'relative to the fixed fixed first hinge parts 3 and 3', the door 8 is pivoted about the corresponding pivoting angle. In FIG. 9 is the minimum swing angle amin shown, in which the door 8 is in the closed, vertical position. In FIG. 9 It can also be seen that the pivot pins 6 and 6 'of the door hinges 2 and 2' are arranged so that their pivot axes coincide, that is, a uniform pivot axis A for the door 8 is realized.

Between the outer pane 10 and the facing inner sides of the carrier elements 11 and 12, a door interior 20 is formed in all embodiments. There are now different embodiments possible in which the door interior 20 is completed either completely airtight to prevent air flow through the door interior 20 (such an embodiment shows FIG. 13 ) or to cool the door through the door cooling air is directed by forced or possibly even only natural convection to get low outside temperatures on the outer pane 10 of the door 8.

FIG. 10 shows the door according to FIG. 9 in a rotated by 90 ° view, so that the first hinge parts 3 and 3 'point upward and the outer pane 10 is arranged horizontally. In the hinges 2 and 2 ', the torque devices and various mechanical components can be seen, but in FIG. 10 for the sake of clarity unspecified. The structure of the hinges corresponds to the basis of the 1 to 4 described structure. Next is in FIG. 10 to recognize that in the door interior 20 parallel to the inner pane 13 and the outer pane 10, two additional discs 18 and 19 in the disk holding parts 63 and 64 of the support members 11 and 12, in particular in the two below the receiving groove for the inner pane 13 lying further grooves (only 66), held and supported by the support members 67 and 68 of the support members 11 and 12. Such a construction with four disks 10, 18, 19 and 13 arranged parallel to each other (in order from outside to inside) is advantageous in applications in which a special thermal insulating effect of the door 8 is desired, for example in pyrolytic self-cleaning ovens , in which temperatures up to 500 ° C and above can occur in the muffle interior.

In the embodiment according to FIG. 9 and 10 , which is provided in particular for a pyrolytic cooking oven, an air guide member 14 is shown, which is attached to the side facing away from the receiving openings 23 and 24 sides, in particular upper end sides, the support members 11 and 12 and extends transversely and parallel to the inner pane 13. This air guide member 14 serves to guide cooling air and / or exhaust air from the oven and / or the door 8 from the door interior 20 between the outer pane 10 and the inner pane 13 and the support members 11 and 12. In addition, according to FIG. 9 arranged on the side facing away from the inner pane 13 outside of the outer pane 8, a door handle 15, which is connected by the outer pane 10 with the support members 11 and 12.

It is now air L from the oven by means of a arranged in the oven, not shown blower blown through at least one air passage opening 94 in the air guide element 14 above the inner pane 13 and occurs on the opposite side forward, past the top of the outer pane 10 from , According to FIG. 9 and 10 an incision is provided on the upper edge of the outer pane 10, so that the cooling air L + KL can also flow over the door handle 15 in order to cool it. In addition, alternatively or additionally, a slot or the cutout of the air guide element 14 may be provided on the outer pane 10 for the passage of air from the door interior 20 to the outer space. Due to the air flow L through the air passage opening 94 and the air guide element 14 cool air KL is sucked up from the bottom of the door in the direction illustrated by the arrows shown and occurs together with the sucked from behind air L together from the air guide element 14 as mixed air L. + KL off. This cool air KL from the bottom of the device cools the discs 13, 19, 18 and, above all, on their flow path from bottom to top through the door interior 20 the outer pane 10. The air passage opening 94 of the air guide element 14 is preferably in front of the air outlet openings, in particular the openings 84 in the front frame 81 according to FIGS. 11 and 12 arranged, from which or the air L exits the housing of the Garofens.

The discs 10, 13 and possibly 18 and 19 are in all embodiments preferably made of glass or a glass-like material, such as a glass ceramic, and are preferably designed to be transparent in the interior of the oven, so that a viewing window is formed. Of course, the discs 10, 13, 18 and 19 at least partially made of a temperature-resistant and preferably transparent plastic. In this embodiment, an outer disk 10 made of plastic can be formed integrally or from a molded part, even in a forming process together with the carrier elements 11 and 12, so that a connection of the carrier elements 11 and 12 with the outer pane 10 is not necessary.

In FIGS. 11 and 12 is in a front view and a partially sectioned side view of a Haushaltsgarofen, in particular for installation in a Einbaunische a fitted kitchen, shown. The household oven 80 comprises an interior (cooking chamber, muffle interior) 90 which is accessible from the front via an access opening (charging opening) 82. Disposed on the front side is a front frame 81 of the housing 91 which surrounds the access opening 82 and on which a circumferential seal 83 for sealing the access opening 82 against the closed, only in FIG. 12 shown door 8 has or carries. Left and right below the access opening 82 are, as in FIG. 11 shown, two openings 91 and 92 provided in the front frame 81, through which each fixed to be mounted first hinge part 3 and 3 'of a door hinge 2 and 2 'is inserted and attached to a bottom plate 86 of the housing 91, in particular screwed, is. The relative to the housing 91 movable second hinge part 4 is mounted in the door 8 according to FIG. 12 , especially in the in the 1 to 9 described way. As a result, the door 8 is out of the in FIG. 12 shown vertical closed position to a maximum open horizontal position pivoted.

Above the access opening 82, air passage openings 84 for passing or passing cooling air or exhaust air from the oven are provided in the front frame 81. Above the front frame 81, a control panel 85 is attached to the housing 91 with corresponding control and / or display elements, not shown.

In FIG. 13 a closed variant of the door 8 is shown. At the bottom of the door between the support members 11 and 12, a cover or sealing member 95 is arranged transversely, which completely seals the door interior 20 down. The sealing element 95 is designed in the form of a strip which has latching elements on its end faces for latching into the pane holding parts 63 and 64 of the carrier elements 11 and 12.

The sealing member 95 further includes an angular flange which overlies the inner disc 13 and also angular notches for conforming to the connecting flanges 61 and 62 of the support members 11 and 12.

On the opposite side of the door interior 20, that is to say on the upper side, a further sealing element 96 is provided, which runs on the end faces of the carrier elements 11 and 12 from above or in a direction parallel to the carrier elements 11 and 12 Direction is inserted. In this case, plug-in areas 97 are inserted into the receiving channels 16 and 17 and further connection areas 98 close to the disk holding parts 63 and 64 of the support members 11 and 12, where a plug or other connection is not absolutely necessary. It is sufficient a connection, in particular a screw connection or even a latching or Verschnappung, the plug-in areas 97 with the receiving channels 16 and 17. Also, the sealing member 96 preferably engages over the inner surface of the inner pane 13 in the manner of a flange and seals over the entire length against the outer pane 10 from. As a result, the entire door interior 20 is hermetically sealed or at least substantially airtight, so that no air convection can flow through the door. Although 20 completed convection currents of the air are still possible within the door interior. Preferably, however, this convection is minimized by the fact that the sealing elements 95 and 96 abut against the end edges of the discs 13 and possibly 18 and 19 and thereby limit convection to the spaces between the individual discs. A closed door structure has the advantage that lower energy losses occur than with active air cooling.

reference numeral

2, 2 '

door hinge

3, 3 '

first hinge part

4, 4 '

second hinge part

4A

first part

4B

second part

5, 5 '

6

pivot pin

7

arresting

8th

door

10

outer pane

11, 12

support element

13

inner pane

14

Air guide

15

door handle

16, 17

receiving channel

20

Door interior

21, 22

stop surface

23, 24

receiving opening

25

Outer wall front

26, 27

channel wall

28

recess

29

breakthrough

30

hinge housing

33, 34

thread

35

Long hole

41

catch projection

42

contact surface

43

cutout

44

stop projection

45

stop surface

46

outer surface

47

The End

48

locking surface

49

guide surface

50

mainspring

51

compression spring

52

leadership

53

seesaw

55

bolt

56

pull lever

61, 62

connecting flange

63, 64

disc holder

65, 66

receiving grooves

67, 68

supporting part

A

swivel axis

αmin

minimal swing angle

.alpha..sub.max

maximum swing angle

α

swivel angle

β

tilt angle

L, KL

air

80

Domestic cooking

81

front frame

82

access opening

83

poetry

84

Air passage opening

85

control panel

86

floor panel

91, 92

opening

93

casing

Claims (40)

1. Device for closing the access opening (82) of an interior of a domestic appliance, in particular a domestic cooking oven, a domestic cooling appliance and/or domestic freezing appliance, a domestic dishwasher or a domestic washing machine, comprising

   a) a door (8), which

   a1) has an outer panel (10) facing away from the access opening (82) and

   a2) at least two support elements (11, 12) connected to the outer panel (10), and

   b) a movement device

   b1) for moving the door (8) relative to the access opening (82) between two end positions, wherein the door (8) in a first of the end positions closes the access opening (82) and in a second of the end positions opens the access opening (82), in particular for introducing or removing goods in the interior through the access opening (82),

   b2) wherein the movement device comprises at least two door holding parts (4) for holding the door (8) and at least two connection parts (3) which can be stored in a housing or a further part of the domestic appliance which is fixed to the interior and connected to in each case one door holding part (4),

   c) wherein each support element (11, 12) has a receiving channel (16, 17) enclosed by a channel wall (26, 27) and with a receiving opening (23, 24), through which in each case an associated door holding part (4) of the movement device is introduced or can be introduced into the receiving channel (16, 17) and is locked or can be locked in the receiving channel (16, 17),

   d) wherein each door holding part (4) and the channel wall (26, 27) of the associated receiving channel (16, 17) have cooperating stop surfaces which rest one on another when the door holding part (4) is locked in the receiving channel (16, 17), so that in the locked state, a first part (4A) of the door holding part (4) lies within the receiving channel (16, 17) and a second part (4B) of the door holding part (4) having the stop surface(s) (45) lies outside of the receiving channel (16, 17),

   e) wherein the second part (4B) of each door holding part (4) is connected to the associated connection part (3) of the movement device outside of the receiving channel (16, 17),
   characterised in that

   f) the channel wall (26, 27) of each receiving channel (16, 17) has on the outer side facing the outer panel (10) an opening (29) which is at a distance from the receiving opening (23, 24).
2. Device according to claim 1, in which each door holding part (4) is connected in a fixed angular position rigidly or immovably to the associated connection part (3) and the connection parts (3) with the door holding parts (4) can be moved axially or linearly between two end positions corresponding to the end positions of the door (8).
3. Device according to claim 1, in which each door holding part (4) is connected to the associated connection parts (3) via a pivoting connection and hence the door holding part (4) and the associated connection part (3) can be pivoted relative to one another about a pivoting axis (A), so that the door can be moved between the end positions by a pivoting movement.
4. Device according to claim 3, in which the movement device comprises at least two door hinges (2, 2') which have in each case two hinge parts (3, 3'; 4, 4') which can be pivoted relative to one another about a pivoting axis (A) within a pivoting angle range between a minimum pivoting angle (αmin) and a maximum pivoting angle (αmax), wherein in each case a connection part (3) comprises or is a first hinge part (3, 3') of a door hinge and the associated door holding part (4) comprises or is the second hinge part (4, 4') of the associated door hinge and wherein at least one of the two hinge parts (3, 3'; 4, 4') has a torque device which exerts a torque between the two hinge parts (3, 3'; 4, 4') in the pivoting axis (A) at least in one section of the pivoting angle range.
5. Device according to claim 4, in which the torque exerted by the torque device depends on the pivoting angle (α) at least in one section of the pivoting angle range.
6. Device according to claim 4 or claim 5, in which the torque exerted by the torque device counteracts a torque to be applied to increase the pivoting angle (α) between the two hinge parts (3, 3'; 4, 4') at least in one section of the pivoting angle range.
7. Device according to one of claims 4 to 6, in which the torque device of each door hinge is arranged in or on the first hinge part (3, 3') of the door hinge or in or on the connection part (3) of the movement device.
8. Device according to one or more of the preceding claims, in which the channel wall (26, 27) of each receiving channel (16, 17) is at a distance from the outer panel (10).
9. Device according to one or more of the preceding claims, in which the cross-section of each door holding part (4) increases in a transition region between first part and second part, in particular gradually, so that the stop surface is formed by the second part due to the cross-section which is greater in the transition region.
10. Device according to one or more of the preceding claims, in which the stop surface of the second part of the door holding part (4) is arranged on an inner side of the door holding part (4) facing away from the outer panel (10) when the door holding part (4) is assembled and the counter-stop surface is arranged on the channel wall (26, 27) on the inner side of the receiving opening (23, 24) facing away from the outer panel (10).
11. Device according to one or more of the preceding claims, in which a locking connection and/or snap connection is provided to lock each door holding part (4) in the associated receiving channel (16, 17).
12. Device according to claim 11, in which the locking connection and/or snap connection comprises at least one locking projection (41) and at least one locking recess (28) or locking cutout, wherein in the locked state of the door holding part (4), the locking projection (41) engages into the locking cutout.
13. Device according to claim 12, in which the first part of each door holding part (4), preferably on a free end (47) facing away from the connection part (3) or the second hinge part (4, 4'), has at least one locking projection (41) and the channel wall (26, 27) of the associated receiving part has a locking recess (28) or locking cutout.
14. Device according to one of claims 11 to 13, in which the first part of the door holding part (4) has on one inner side, a first support surface (42), with which the door holding part (4) in the locked state rests from the inside on the inner side of the channel wall (26, 27) of the receiving channel (16, 17) facing away from the outer panel (10), and on one outer side, a second support surface (42), with which the door holding part (4) in the locked state rests from the inside on an outer side of the channel wall (26, 27) of the receiving channel (16, 17) facing the outer panel (10).
15. Device according to one of claims 12 to 14, in which the first part of the door holding part (4), seen from its free end (47), on the inner side initially has a locking projection (41), then the support surface (42) set back with respect to the locking projection (41), then a recess (43) set back with respect to the support surface (42), wherein the recess (43) transfers via the stop surface into a stop projection of the second part.
16. Device according to claim 15, in which due to the cross-sectional reduction in the region of the recess (43) on the one hand and due to the opening (29) in the channel wall (26, 27) on the other hand, tilting of the first part of the door holding part (4) with respect to the receiving channel (16, 17), in particular with deformation of the outer region of the channel wall (26, 27) between the receiving opening (23, 24) and the opening (29), is possible for assembly or dismantling and during this tilting, the locking projection (41) is also arranged outside of the locking recess (28) and the support surface (42) on the inner side does not rest on the channel wall (26, 27) and after tilting the door holding part (4) relative to the receiving channel (16, 17), engages into the locking recess (28) in the opposite direction of the locking projection (41), the support surface (42) rests on the inner wall of the channel wall (26, 27) and the outer surface (46) rests on the outer wall of the channel wall (26, 27) between the opening (29) and receiving opening (23, 24) and hence the door holding part (4) is locked in the receiving channel (16, 17), wherein the distance between the stop surface of the second part and the side of the locking projection (41) facing the stop surface corresponds to the distance between the receiving opening (23, 24) and the wall region facing the receiving opening (23, 24) of the locking recess (28) in the channel wall (26, 27), so that the door holding part (4) is also axially secured.
17. Device according to one or more of the preceding claims, in which the connection between the door holding part (4) and the connection part (3), in particular the pivoting connection or the pivoting axis (A), comes to rest in a projection in the channel introduction direction essentially within the cross-section of the receiving channel (16, 17) and/or is spaced from the outer panel (10) by a distance which is not greater than the distance of the outer wall facing away from the outer panel (10) of the channel wall (26, 27) of the receiving channel (16, 17) from the outer panel (10).
18. Device according to one or more of the preceding claims, in which the outer panel (10) is designed to be longer opposite to the introduction direction of the door holding part (4) or in an imaginary extension of the receiving channel (16, 17) beyond the receiving opening (23, 24) than each receiving channel (16, 17) and preferably also than the support elements (11, 12) and/or in which the outer panel (10) covers the second parts of the door holding parts (4) externally.
19. Device according to one or more of the preceding claims, in which the support elements (11, 12) have in each case a panel holding part for holding at least one additional door panel.
20. Device according to claim 19, in which the receiving channels are formed, moulded or arranged on the outer sides of the panel holding parts (63, 64) of the support elements (11, 12) facing away from one another.
21. Device according to claim 19 or 20, in which the panel holding parts (63, 64) are arranged or formed on connection flanges (61, 62), via which the support elements (11, 12) are connected, in particular adhered or welded, to the outer panel (10).
22. Device according to one of claims 19 to 21, in which each support element (11, 12), in particular with the associated panel holding part, receiving channel (16, 17) and/or connection flange (61, 62), is formed as an integral moulding or in one production process or as a moulding consisting of one material.
23. Device according to one or more of the preceding claims, in which each support element (11, 12) consists at least partly of one or more plastics.
24. Device according to one or more of the preceding claims, in which outer panel (10), an inner panel (13) and support elements (11, 12) define a door interior (20) to be gastight in each case and wherein the door interior (20) at two opposite edge regions leads into openings between the support elements (11, 12) and outer panel (10) and inner panel (13).
25. Device according to claim 24, in which at least one of the openings of the door interior (20) is essentially sealed by an associated sealing element, which is attached releasably to the support elements (11, 12) and rests in sealing manner on the outer panel (10), the inner panel (13) and each support element (11, 12).
26. Device according to claim 24 or 25, in which an air guiding element, which has at least one air passage opening (94) for passage of air from a housing region of the domestic appliance to the outside, is arranged on one opening of the door interior (20).
27. Device according to claim 25 or 26, in which the other opening of the door interior (20) is open.
28. Device according to claim 25 or 26, in which the other opening of the door interior (20) is likewise essentially sealed by an associated sealing element which is attached releasably to the support elements (11, 12) and rests in sealing manner on the outer panel (10), the inner panel (13) and each support element (11, 12).
29. Device according to one or more of claims 26 to 28, in which at least one sealing element or air guiding element is attached to the support elements (11, 12) via in each case one locking connection or snap connection.
30. Device according to one or more of claims 25 to 29, in which at least one sealing element or air guiding element (14) is attached to the inner sides of the two support elements (11, 12) facing one another.
31. Device according to one or more of claims 25 to 30, in which at least one sealing element or air guiding element (14), is attached in particular to end-face sides of the two support elements (11, 12), directed in particular essentially vertically to the outer panel (10) and/or parallel to the opening to be sealed of the door interior (20).
32. Device according to one or more of claims 25 to 31, in which at least one sealing element or air guiding element (14) is inserted by a plug region or plug element into in each case at least one receiving channel (16, 17) or a receiving groove (65, 66) of each support element.
33. Device according to one or more of the preceding claims, in which each support element (11, 12) has at least one receiving groove (65, 66) to receive the inner panel (13) and/or a further door panel and on one side of each receiving groove (65, 66), a supporting part (67, 68) for the inner panel (13) or further door panel.
34. Device according to claim 33, in which at least one sealing element or air guiding element (14) is inserted or locked into a receiving groove (65, 66) or between two groove walls in the region of the supporting part (67, 68).
35. Device according to claim 33 or 34 having at least one further door panel received in the associated receiving grooves (65, 66) of the support elements (11, 12) in the door interior (20).
36. Device according to one or more of claims 25 to 35, in which at least one sealing element or air guiding element (14) is attached to the two support elements (11, 12) by screw connections.
37. Device according to one or more of claims 25 to 36, in which at least one sealing element as regards its contour adjoining the support elements (11, 12) is adapted to the support elements (11, 12), so that sealing contact is achieved.
38. Device according to one or more of claims 25 to 37, in which the outer shape of the arrangement comprising the two support elements (11, 12) and two sealing elements for sealing both openings of the door interior (20) is essentially rectangular and/or the support elements (11, 12) and the sealing elements at the outer surfaces (46) transfer in flush manner or smoothly into one another.
39. Device according to one or more of the preceding claims, in which the support elements (11, 12) run essentially vertically at least in the closed state of the door and/or the openings of the door interior (20) lie in an upper edge region and in a lower edge region of the door interior (20) at least in the closed state of the door.
40. Domestic appliance, in particular domestic cooking oven, domestic cooling appliance and/or domestic freezing appliance, domestic dishwasher or domestic washing machine having an interior with an access opening and a device assigned to the access opening for closing the access opening according to one or more of claims 1 to 39.

Images