Door and household cooking appliance
By designing a window inspection device and a locking device on the door of household cooking appliances, the automatic inspection and easy disassembly of the middle window are realized, solving the problem of difficult door disassembly and improving cleaning convenience and operational safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-07-07
- Publication Date
- 2026-03-27
AI Technical Summary
The doors of existing household cooking appliances are difficult to remove when the inner and middle panes need to be cleaned, making cleaning inconvenient.
A door structure was designed, which includes a window inspection device and a locking device. The window inspection device can switch the locking device from the unlocked state to the locked state only when the middle window is correctly installed, ensuring the correct installation of the middle window. The door bracket is fixedly connected to the outer window. The window inspection device can rotate and the locking device can move. Automated inspection and disassembly are achieved through shape locking.
It enables automated inspection and easy disassembly of the middle window panel, ensuring proper door installation and improving cleaning convenience and operational safety.
Smart Images

Figure CN116134271B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present invention relates to a door for a domestic cooking appliance and to a domestic cooking appliance having such a door. BACKGROUND
[0002] Domestic cooking appliances can have a cooking chamber which has a door which is pivotably secured on the cooking chamber. The door can have an inner pane which faces towards the cooking chamber, an outer pane which faces away from the cooking chamber and an intermediate pane which is arranged between the inner pane and the outer pane. For domestic cooking appliances with ventilated doors it can be necessary to disassemble the door in order to clean the inner pane and the intermediate pane. It is therefore desirable that the door is easily disassembled. SUMMARY
[0003] Against this background, it is the task of the present invention to provide an improved door for a domestic cooking appliance.
[0004] Therefore, a door for a domestic cooking appliance is proposed. The door comprises an outer pane, an inner pane, at least one intermediate pane which is arranged between the outer pane and the inner pane, a pane checking device which is supported on the door in a rotatable manner about a rotation axis, wherein the pane checking device is pivoted about the rotation axis from an initial position into a final position upon introduction of the at least one intermediate pane in the direction of the outer pane, and a locking device which is movably supported on the door, which locking device is movable from an unlocked state into a locked state, wherein in the unlocked state the locking device is disengaged from the inner pane and in the locked state the locking device at least section-wise encloses the inner pane, wherein the locking device is movable from the unlocked state into the locked state only if the pane checking device is in the final position.
[0005] The locking device is movable from the unlocked state into the locked state only if the pane checking device is in the final position, whereby it is automatically checked whether the intermediate pane is correctly installed. If a plurality of intermediate panes is provided, it is checked whether one of the intermediate panes is missing. In the case that the intermediate pane is not installed, the pane checking device is also not pivoted from the initial position into the final position, so that the locking device cannot be brought from the unlocked state into the locked state. An automatic check of whether the intermediate pane is correctly installed is thereby achieved.
[0006] Especially all intermediate window panes are required to reach the final position. That is to say, as soon as one of the intermediate window panes is missing, the window pane checking device cannot be placed in the final position. The domestic cooking appliance can be a stove, an oven, a microwave combination oven, a double oven, etc. Preferably, the domestic cooking appliance comprises a cooking chamber, to which the door is fixed, for example in a pivotable manner. To this end, a hinge can be provided. The hinge can be coupled with a door carrier of the door. However, this is not mandatory. As an alternative, the door can also be arranged on a Backwagen or the like, which can be pulled out of the cooking chamber. In this case, the door is not fixed to the cooking chamber in a pivotable manner, but can be moved linearly relative to the cooking chamber.
[0007] Especially the door comprises at least one door carrier. The door carrier is especially arranged between the inner window pane and the outer window pane. The door carrier is especially fixedly connected with the outer window pane. Preferably, two door carriers, namely a first door carrier and a second door carrier, are provided, which are fixedly connected with the outer window pane. The door carriers are arranged on the outer window pane on the side and are moved along the y-direction or height direction of the domestic cooking appliance or the door when the door is closed. The door carriers are arranged on the outer window pane on the back, for example bonded with the outer window pane. The window pane checking device can be rotatably supported on one of the door carriers. However, the window pane checking device can also be rotatably supported on every arbitrary other component of the door. Preferably, the rotation axis is oriented parallel to the height direction. That is to say, the rotation axis is positioned vertically. However, the rotation axis can also be oriented parallel to the x-direction or width direction of the domestic cooking appliance or the door. In this case, the rotation axis is positioned horizontally. Preferably, the locking device is also supported on the door carriers. However, the locking device can also be supported on every other component of the door.
[0008] The door can preferably be detached from the cooking chamber, so that the door can be disassembled and assembled again in the state in which the door is detached from the cooking chamber. Furthermore, the door can also be disassembled and assembled again in the state in which it is mounted on the cooking chamber. The window pane checking device is especially suitable for positioning and thus mounting the inner window pane and the intermediate window panes on the door. By means of the window pane checking device, the door can also be detached again. The window pane checking device can also be referred to as a mounting and detaching device. Furthermore, the window pane checking device can also be referred to as a window pane receptacle or window pane receiving device. The locking device can also be referred to as a sliding cover or sliding cover device.
[0009] The outer pane, the inner pane and the intermediate pane are preferably at least sectionally transparent. The number of intermediate panes is in principle arbitrary. For example, one intermediate pane can be provided. However, two intermediate panes or three intermediate panes can also be provided. The intermediate pane can be made of glass, sol-gel, polycarbonate or a similar material. As an alternative, the intermediate pane can be configured as a viewing blind consisting of metal, non-ferrous metal or plastic. When the intermediate pane is introduced in the direction of the outer pane, the intermediate pane is in particular placed onto the pane inspection device, whereby the pane inspection device is twisted about the axis of rotation. Thereby, the pane inspection device is brought from an initial position into a final position. Between the initial position and the final position, intermediate positions of the pane inspection device can be provided.
[0010] The locking device is "disengaged" from the inner pane in the unlocked state, which here means that the locking device does not hold the inner pane and in particular also does not touch the inner pane in the unlocked state. The locking device "encloses" the inner pane at least sectionally in the locked state, which here means that the locking device touches the inner pane and in particular is in form-fitting engagement with the inner pane. The form-fitting connection is produced by the mutual engagement or back-striking of two connection partners, here the inner pane and the locking device. To this end, the locking device can have a pocket-shaped enclosing section, which can enclose the upper edge of the inner pane.
[0011] According to one embodiment, the door furthermore comprises at least one door carrier, which is fixedly or releasably connected with the outer pane.
[0012] The "fixed" connection here can be a form-fitting connection, a force-fitting connection or a material-locked connection. For example, the door carrier is glued, screwed or hung into the outer pane. However, "fixed" does not exclude that the connection can be separated again. Thus, for example, a form-fitting connection can be released again without damaging the door carrier or the outer pane. As mentioned before, preferably two door carriers are provided, which are arranged on the outer pane on the sides.
[0013] According to another embodiment, the pane inspection device is rotatably supported about the axis of rotation on at least one door carrier.
[0014] However, as mentioned before, the pane inspection device can also be rotatably supported about the axis of rotation on each other arbitrary component of the door.
[0015] According to another embodiment, the locking device is movably supported on at least one door carrier.
[0016] However, the locking device can also be movably supported on each other component of the door.
[0017] According to another embodiment, the locking device can be moved along the at least one door carrier from the unlocked state into the locked state.
[0018] Here, the locking device performs a linear movement along the door carrier.
[0019] According to another embodiment, the at least one door carrier is bonded to the outer pane.
[0020] Hereby, a reliable connection of the door carrier to the outer pane is ensured.
[0021] According to another embodiment, the at least one door carrier is made of a plastic material.
[0022] As an alternative, the door carrier can also be made of metal. For example, the door carrier is made of acrylonitrile butadiene styrene (ABS), in particular of fiber-reinforced ABS. As an alternative, any other plastic material can also be used. By using a plastic material for the door carrier, the door carrier can be manufactured cost-effectively as a plastic injection-molded component. The pane inspection device and the locking device can also be constructed as plastic components. Preferably, the pane inspection device and the locking device are also constructed as plastic injection-molded components.
[0023] According to another embodiment, the door comprises a first door carrier and a second door carrier, wherein each door carrier comprises a pane inspection device and a locking device.
[0024] In particular, the two locking devices and the two pane inspection devices are arranged on the upper edge of the door. In particular, each pane inspection device is provided with a locking device.
[0025] According to an embodiment, the pane inspection device comprises a spring element which spring-prestresses the pane inspection device in the direction of the initial position.
[0026] In the initial position, the spring element is in particular almost relaxed or limp. However, the spring element is minimally pre-tensioned, so that the pane inspection device is held in the initial position. The pane inspection device can be brought from the initial position into the final position via one intermediate position or a plurality of intermediate positions. In the installed state of the door, the pane inspection device is in its final state. In the final state, the spring element is maximally pre-tensioned. The spring element "pre-tensions" the pane inspection device in the direction of the initial position, which here means that the pane inspection device can be brought from the initial position into the final position by the application of force, i.e. by the placement of an intermediate pane. As soon as the force no longer acts, that is to say as soon as the intermediate pane is no longer resting on the pane inspection device, the pane inspection device returns autonomously from the final position into the initial position. The spring element is in particular a helical torsion spring or a torsion spring. The spring element can also be a leaf spring. The spring element is in particular suitable for applying a torque to the rotational axis.
[0027] According to another embodiment, the locking device comprises a locking section which in the locked state is form-fittingly embedded into the pane inspection device.
[0028] The locking section is in particular rod-shaped or tab-shaped. As soon as the locking device is in the locked state, the locking section locks the pane inspection device in such a way that the pane inspection device can no longer be twisted about the rotational axis. That is to say, as soon as the locking device is in the locked state, the pane inspection device can no longer be returned from the final position into the initial position.
[0029] According to another embodiment, the pane inspection device comprises a plurality of arms, wherein an intermediate pane rests on one of the arms when it is introduced in the direction of the outer pane, so that the pane inspection device is pivoted about the rotational axis.
[0030] By placing the intermediate pane onto the respective arm, the pane inspection device is pivoted about the rotational axis, wherein the spring element is tensioned.
[0031] According to another embodiment, the locking section in the locked state encircles or catches behind one of the arms.
[0032] "Encircles" or "catches behind" here means that the locking section in the locked state locks the respective arm by means of form-fitting embedding, so that a rotational movement of the pane inspection device about the rotational axis is prevented.
[0033] According to another embodiment, the door comprises a first intermediate pane and a second intermediate pane, wherein the first intermediate pane is arranged between the outer pane and the second intermediate pane, wherein the second intermediate pane is arranged between the inner pane and the first intermediate pane, wherein the pane checking device is pivoted about the swivel axis from the initial position into an intermediate position upon introduction of the first intermediate pane in the direction of the outer pane, and wherein the pane checking device is pivoted about the swivel axis from the intermediate position into the final position upon introduction of the second intermediate pane in the direction of the outer pane.
[0034] The intermediate position is optional. For the case that only one intermediate pane is provided, the pane checking device is brought from the initial position into the final position by means of the placement of one intermediate pane.
[0035] According to another embodiment, the swivel axis is oriented parallel to the y-direction of the door or parallel to the x-direction of the door.
[0036] In a first case, the swivel axis is arranged vertically. In a second case, the swivel axis is arranged horizontally. As mentioned before, the y-direction can also be referred to as height direction and the x-direction can also be referred to as width direction.
[0037] Furthermore, a domestic cooking appliance having a cooking chamber and a door fixed on the cooking chamber is proposed.
[0038] As mentioned before, the domestic cooking appliance can be a hob, an oven, a microwave combination oven, a double oven, etc. "Fixed" means here that the door is connected with the cooking chamber, for example in a pivotable manner, vertically or horizontally. As an alternative, the door can also be arranged on a baking carriage which can be removed from the cooking chamber. In this case, the door is not supported on the cooking chamber in a pivotable manner, but can be moved or displaced linearly with respect to the cooking chamber. However, the door can perform any arbitrary movement when it is opened.
[0039] Further possible implementations of the door and / or the domestic cooking appliance also comprise combinations of features or embodiments described before or below without explicit mention. Here, the skilled person also adds individual aspects as improvements or supplements to the respective basic form of the door and / or the domestic cooking appliance. BRIEF DESCRIPTION OF DRAWINGS
[0040] Further advantageous design solutions and aspects of the door and / or the domestic cooking appliance are the subject of the dependent claims and the embodiments of the door and / or the domestic cooking appliance explained next. Furthermore, the door and / or the domestic cooking appliance is explained in detail according to preferred embodiments with reference to the drawings.
[0041] Figure 1 a schematic perspective view of an embodiment of a domestic cooking appliance is shown;
[0042] Figure 2 a schematic perspective view of an embodiment of a door for a domestic cooking appliance according to Figure 1 is shown;
[0043] Figure 3 a view III according to Figure 2 is shown;
[0044] Figure 4 another schematic perspective view of a door according to Figure 2 is shown;
[0045] Figure 5 a view V according to Figure 4 is shown;
[0046] Figure 6 another schematic perspective view of a door according to Figure 2 is shown;
[0047] Figure 7 a view VII according to Figure 6 is shown;
[0048] Figure 8 another schematic perspective view of a door according to Figure 2 is shown; and
[0049] Figure 9 a view IX according to Figure 8 is shown. DETAILED DESCRIPTION
[0050] In the drawings, identical or functionally identical elements are provided with the same reference signs unless stated otherwise.
[0051] Figure 1 a schematic perspective view of an embodiment of a domestic cooking appliance 1 is shown. The domestic cooking appliance 1 can be a hob, an oven, a microwave combination oven, a double oven, etc. The domestic cooking appliance 1 has a cooking chamber 2 which can be closed by means of a door 3. The cooking chamber 2 can also be referred to as a muffle or an oven muffle. The cooking chamber 2 can be arranged inside a housing of the domestic cooking appliance 1. The door 3 is in Figure 1The door 3 is shown in a closed position. By pivoting about a pivot axis arranged at the lower end of the door 3 or at the lower edge 4 of the door 3, the door 3 can be closed or opened. As an alternative, the door 3 can be fixed on the side on the cooking chamber 2. Furthermore, the door 3 can be arranged on a baking carriage which can be pulled out of the cooking chamber 2. However, the manner of movement of the door 3 when the door 3 is opened can be chosen arbitrarily. That is to say, the door 3 can in principle carry out every arbitrary movement when it opens itself.
[0052] A handle 6 can be arranged on the upper section or upper edge 5 of the door 3. The cooking chamber 2 has a bottom 7, a top cover 8 arranged opposite the bottom 7, a rear wall 9 arranged opposite the closed door 3 and side walls 10, 11 arranged opposite one another on two sides. The cooking chamber 2 is preferably square or cuboidal. The cooking chamber 2 can be made of a metal material, in particular of sheet steel.
[0053] Furthermore, the domestic cooking appliance 1 comprises operating knobs 13, 14 arranged on a switch panel or operating panel 12. The operating knobs 13, 14 can for example be rotatable. On the rear of the operating panel 12, a control device 15, which is shown only schematically, can be arranged for controlling the domestic cooking appliance 1. The control device 15 can be a regulating and / or control device. Furthermore, a display 16 can be arranged on the operating panel 12. By means of the display 16, the operating state of the domestic cooking appliance 1 can be displayed. For example, by means of the display 16, the temperature set by means of one of the operating knobs 13, 14 can be displayed.
[0054] The domestic cooking appliance 1 can be pyrolyzable. That is to say, the cooking chamber 2 can be incinerated by means of a correspondingly high temperature. Dirt adhering on the inside on the cooking chamber 2 and on the door 3 is carbonized here, so that the dirt either falls off by itself or can be easily removed. However, this pyrolysis function is not mandatory. The door 3 is a ventilated door. That is to say, an air flow is guided through the door 3.
[0055] The domestic cooking appliance 1 or the door 3 is provided with a coordinate system having a width direction or x-direction x, a height direction or y-direction y and a depth direction or z-direction z. The directions x, y, z are oriented perpendicular to each other. The door 3 comprises an outer pane 17 which lies in a plane spanned by the x-direction x and the y-direction y. On the outer pane 17 on the back side, that is to say facing the cooking chamber 2, a first door carrier 18 and a second door carrier 19 are arranged. The door carriers 18, 19 extend in the y-direction y when the door 3 is closed. The door carriers 18, 19 are preferably bonded on the back side to the outer pane 17. The door carriers 18, 19 are made of a plastic material. On the door carriers 18, 19 a not shown hinge can be arranged, so that the door 3 can be fixed in a pivotable manner on the cooking chamber 2.
[0056] Figure 2 A schematic partial perspective view of an embodiment of a door 3 as mentioned before is shown. Figure 3 A view III according to Figure 2 is shown. In the following reference is made to Figure 2 and 3 simultaneously.
[0057] As mentioned before, the door 3 comprises an outer pane 17 on which on the back side door carriers 18, 19 are bonded, in Figure 2 and 3 only the first door carrier 18 of which is shown. In addition to the outer pane 17, the door 3 comprises an inner pane 20 facing the cooking chamber 2. Between the outer pane 17 and the inner pane 20 a first intermediate pane 21 and a second intermediate pane 22 are arranged. The number of intermediate panes 21, 22 is in principle arbitrary. The first intermediate pane 21 is arranged closer to the outer pane 17 than the second intermediate pane 22. Correspondingly, the second intermediate pane 22 is arranged closer to the inner pane 20 than the first intermediate pane 21. The inner pane 20 is held by a latching device 23 which can be moved along the first door carrier 18. The latching device 23 can also be called a sliding cover.
[0058] During operation of the domestic cooking appliance 1, in particular during pyrolysis operation, air is circulated between the outer pane 17 and the first intermediate pane 21 and between the first intermediate pane 21 and the second intermediate pane 22. Between the second intermediate pane 22 and the inner pane 20 a standing air cushion is arranged. This air cushion serves for thermal insulation. However, such a standing air cushion is not mandatory. Dirt can deposit on the intermediate panes 21, 22, the inner pane 20 and / or the outer pane 17. Therefore, as will be explained below, the user can remove the inner pane 20 and the intermediate panes 21, 22 from the door 3 for cleaning.
[0059] Figure 4 a further schematic partial perspective view of the door 3 according to Figure 2 Figure 5 a view V according to Figure 4 Figure 4 and 5
[0060] For mounting and dismounting the inner pane 20 and the intermediate panes 21, 22, the door 3 comprises a pane checking device 24. The pane checking device 24 is suitable for positioning the inner pane 20 and the intermediate panes 21, 22 on the door 3 and for mounting or checking whether the intermediate panes 21, 22 are mounted. By means of the pane checking device 24 the door 3 can also be dismounted again. The pane checking device 24 can also be referred to as a mounting and dismounting device. The pane checking device 24 can also be referred to as a pane receptacle or pane receptacle device. The pane checking device 24 is fixedly connected with the door 3, in particular with the first door profile 18. Preferably, such a pane checking device 24 is provided on each door profile 18, 19. However, only the pane checking device 24 is discussed in the following.
[0061] The pane checking device 24 comprises a first arm 25, a second arm 26 and a third arm 27. The arms 25 to 27 are fixedly connected with one another. Furthermore, the pane checking device 24 comprises a swivel axis 28, about which the pane checking device 24 is pivotably supported on the first door profile 18. However, the pane checking device 24 does not have to be pivotably supported on the first door profile 18. The pane checking device 24 can also be pivotably supported on each arbitrary other component of the door 3 about the swivel axis 28. The arms 25 to 27 are fixedly connected with the swivel axis 28. In particular, the arms 25 to 27 and the swivel axis 28 form an integral component. "Integral" or "one-piece" means here that the pane checking device 24 is not composed of a plurality of individual components, but that the arms 25 to 27 and the swivel axis 28 form one common component. The third arm 27 is in particular used for fastening and positioning or for holding a buffer element or a bumper, which will be explained in the following. The buffer element or the bumper can be integrated in a soft component. That is to say, the third arm 27 itself can be made of a soft component.
[0062] In particular, the arms 25 to 27 and the rotary shaft 28 form a component of uniform material. By "uniform material" is meant here that the arms 25 to 27 and the rotary shaft 28 are continuously made of the same material. The third arm 27 can alternatively also be made of another material, in particular of silicone rubber or of another soft component. The window pane inspection device 24 is, for example, a plastic injection-molded component. The first arm 25 and the second arm 26 are arranged on the rotary shaft 28 in such a way that the arms 25, 26 form a U-shaped or C-shaped geometry in a view according to Figure 5 The third arm 27 is positioned alongside the arms 25, 26, viewed along the rotary shaft 28.
[0063] The second arm 26 comprises a first cushion element 29 facing the first arm 25 and a second cushion element 30 facing away from the first arm 25. The cushion elements 29, 30 are square or block-shaped. The second arm 26 is arranged between the cushion elements 29, 30. Instead of two cushion elements 29, 30, a single continuous cushion element can also be provided.
[0064] The cushion elements 29, 30 can be made of a different material than the second arm 26. For example, the cushion elements 29, 30 are made of thermoplastic elastomer (TPE), in particular of thermoplastic polyurethane (TPU). To this end, the window pane inspection device 24 can be produced, for example, by means of a two-component plastic injection-molding method. The third arm 27 is provided with a third cushion element 31 facing the second arm 26 and a fourth cushion element 32 facing away from the second arm 26. The cushion elements 31, 32 can be made of a different material than the third arm 27. For example, the cushion elements 31, 32 are made of TPE, in particular of TPU. Instead of two cushion elements 31, 32, a single continuous cushion element can also be provided. An introduction ramp 33 is provided on the third cushion element 31. The cushion elements 29 to 32 can also be made of silicone rubber, for example of so-called liquid silicone rubber (LSR), HTV silicone or RTV silicone. The cushion elements 29 to 32 act as spacer pads. The cushion elements 29 to 32 can therefore also be referred to as spacer pads or spacer pad elements.
[0065] The window pane inspection device 24 is provided with a spring element 34 in which the rotary shaft 28 is at least sectionally received. The spring element 34 can be part of the window pane inspection device 24. The spring element 34 can be a coil spring or a leaf spring. In particular, the spring element 34 is a coil torsion spring. The spring element 34 is a torsion spring. That is to say, the spring element 34 can generate a torque acting onto the rotary shaft 28. The spring element 34 pre-tensions the window pane inspection device 24 relative to the first door bracket 18 in such a way that the window pane inspection device 24 remains in the Figure 4 and 5The initial position AP is shown. In the initial position AP, the spring element 34 is almost relaxed. However, the spring element 34 has a minimum pretension in the initial position AP, so that the pane inspection device 24 remains in the initial position AP. A support section 35 is provided on the first door carrier 18, on which the first intermediate pane 21 can be placed.
[0066] Now returning to the locking device 23, this can be brought from an unlocked state Z1, which is shown in Figures 4 to 9 , into a locked state Z2, which is shown in Figure 2 and 3 , wherein in the unlocked state the locking device 23 does not clamp the inner pane 20 and is not in contact therewith, and in the locked state the locking device 23 clamps the inner pane 20 and is thus fixed to the door 3. To this end, the locking device 23 can be moved along the first door carrier 18. In the locked state Z2, the locking device 23 is latched with the first door carrier 18, so that the locking device 23 cannot be brought automatically from the locked state Z2 into the unlocked state Z1. To bring the locking device 23 from the locked state Z2 into the unlocked state Z1, first a not shown key should be actuated, which unlocks the locking device 23, so that this can be moved along the first door carrier 18.
[0067] The locking device 23 is preferably a one-piece, in particular materially uniform, plastic component, in particular a plastic injection-molded component. The locking device 23 comprises a pocket-shaped clamping section 36, which clamps an upper edge 37 of the inner pane 20 in the locked state Z2. Furthermore, the locking device 23 comprises a rod-shaped or strip-shaped locking section 38, which cooperates with the pane inspection device 24 as will be explained below.
[0068] Figure 6 A further schematic partial perspective view of the door 3 is shown. Figure 7 A view VII according to Figure 6 is shown. Figure 8 A further schematic partial perspective view of the door 3 is shown. Figure 9 A view IX according to Figure 8 is shown. The functionality of the pane inspection device 24 will be explained below by means of Figures 2 to 9 .
[0069] First, the pane inspection device 24 is in the initial position AP, which is shown in Figure 4 and 5The initial position AP is shown. Here, the blocking section 38 is locked by the pane checking device 24 such that the blocking device 23 cannot be brought from the unblocked state Zl into the blocked state Z2. The blocking device 23 can only be pushed into the first door holder 18 until the blocking section 38 hits the pane checking device 24.
[0070] As shown in Figure 6 and 7 , the first intermediate pane 21 is introduced in the direction of the introduction direction E towards the outer pane 17. Here, the first intermediate pane 21 rests on the first arm 25, whereby the pane checking device 24 is twisted from the initial position AP shown in Figure 4 and 5 into the intermediate position ZP shown in Figure 6 and 7 and here encloses the first intermediate pane 21. Here, the spring element 34 is tensioned. Here, the pane checking device 24 is twisted counterclockwise until the first intermediate pane 21 rests on the support section 35. The pane checking device 24 locks the blocking section 38 as before, such that the blocking device 23 cannot be pushed into the first door holder 18.
[0071] Next, as shown in Figure 8 and 9 , the second intermediate pane 22 is introduced in the direction of the introduction direction E towards the outer pane 17. The introduction of the second intermediate pane 22 is facilitated by the introduction ramp 33. In introducing the second intermediate pane 22, this second intermediate pane 22 is placed on the second cushion element 30 of the second arm 26 such that the pane checking device 24 is moved from the intermediate position ZP into the final position EP, in which the second arm 26 is arranged between the first intermediate pane 21 and the second intermediate pane 22. In bringing the pane checking device 24 from the intermediate position ZP into the final position EP, the second intermediate pane 22 is also enclosed by the pane checking device 24. Here, the first cushion element 29 rests on the first intermediate pane 21 and the second cushion element 30 rests on the second intermediate pane 22. Here, the cushion elements 29, 30 can be compressed. Furthermore, the third arm 27 is also pivoted such that the second intermediate pane 22 is arranged between the second arm 26 and the third arm 27.
[0072] In the end position EP, the pane check device 24 no longer locks the blocking section 38 of the blocking device 23, so that the user can place the blocking device 23 from the unblocked state Zl into the blocked state Z2. However, because the inner pane 20 is missing, it is clear to the user that the inner pane 20 should first be placed onto the door 3 before the blocking device 23 can be placed from the unblocked state Zl into the blocked state Z2. Thus, by means of the cooperation of the blocking device 23 and the pane check device 24, it is possible to automatically check whether the intermediate panes 21, 22 are correctly installed.
[0073] Finally, as shown in Figure 2 and 3 , the inner pane 20 is placed onto the third arm 27, in particular onto the fourth buffer element 32. Here, the third arm 27 can be elastically deformed such that the third buffer element 31 rests against the second intermediate pane 22 and the fourth buffer element 32 rests against the inner pane 20. Here, the buffer elements 31, 32 can be compressed. The third arm 27 is optional here. The function of the third arm 27 is to receive and position the buffer elements 31, 32 between the second intermediate pane 22 and the inner pane 20. When the inner pane 20 is installed, the buffer elements 31, 32 are compressed. After the inner pane 20 has been installed, the blocking device 23 is pushed into the first door holder 18, so that the blocking device 23 fixes the inner pane 20 and presses it against the fourth buffer element 32.
[0074] Here, the blocking device 23 partially encloses the inner pane 20. The blocking section 38 fixes the pane check device 24 in the end position EP. To this end, the blocking section 38 encloses the third arm 27 from behind. The blocking section 38 is thus form-fittingly embedded in the pane check device 24. The form-fitting connection is produced by the two connection partners, here the blocking section 38 and the pane check device 24, embedding into or enclosing each other from behind.
[0075] The advantages of the door 3 are explained below. By means of the interplay of the locking device 23 and the pane check device 24, it is possible to easily and automatically check whether the intermediate panes 21, 22 are correctly installed. If only one intermediate pane 21, 22 is missing, it is not possible to place the locking device 23 from the unlocked state Zl into the locked state Z2. The locking device 23 is advantageously inseparably connected with the first door carrier 18. As long as the locking device 23 is not in the locked state Z2, the door 3 cannot be completely closed. The user is thus shown that the door 3 is not completely installed. Since such a locking device 23 is provided on both door carriers 18, 19, these locking devices are also operated separately from one another. This simplifies the operation. Furthermore, a double safety can thus be achieved. The locking device 23 can be operated toollessly. That is to say, the door 3 can also be disassembled and installed without tools.
[0076] The door 3 can be disassembled and installed not only in the state in which it is placed on the cooking chamber 2 but also in the state in which it is removed from the cooking chamber 2. By means of the locking device 23, an increased operating safety can be achieved. By the use of two intermediate panes 21, 22, a better thermal insulation is provided, whereby the adhesive for bonding the door carriers 18, 19 to the outer pane 17 and the plastic parts of the door 3, in particular the door carriers 18, 19, the locking device 23 and the pane check device 24, are not thermally overloaded. The locking device 23 and the pane check device 24 are inseparably connected with the door 3.
[0077] Although the application has been described by means of embodiments, the application is capable of modifications in various aspects.
[0078] List of reference signs:
[0079] 1 domestic cooking appliance
[0080] 2 cooking chamber
[0081] 3 door
[0082] 4 lower edge
[0083] 5 upper edge
[0084] 6 handle
[0085] 7 bottom
[0086] 8 top cover
[0087] 9 rear wall
[0088] 10 side wall
[0089] 11 side wall
[0090] 12 operating panel
[0091] 13. Operate the ball handle
[0092] 14. Operate the ball handle
[0093] 15 Control Devices
[0094] 16 monitors
[0095] 17 exterior window panels
[0096] 18-door bracket
[0097] 19-door bracket
[0098] 20 inner window
[0099] 21 Middle Window
[0100] 22 Middle Window
[0101] 23 Locking Device
[0102] 24-window inspection device
[0103] 25 arms
[0104] 26 arms
[0105] 27 arms
[0106] 28 rotating shafts
[0107] 29 Buffer Elements
[0108] 30 buffer elements
[0109] 31 Buffer element
[0110] 32 buffer elements
[0111] 33 Importing the inclined plane
[0112] 34 elastic elements
[0113] 35 Support Section
[0114] 36 sections
[0115] 37 Upper edge
[0116] 38 Locking Sections
[0117] AP initial position
[0118] E Import Direction
[0119] EP final position
[0120] xx direction
[0121] yy direction
[0122] zz direction
[0123] zp intermediate position
[0124] z1 unlocked state
[0125] z2 locked state
Claims
1. Door (3) for a domestic cooking appliance (1), the door having: - an outer pane (17); - an inner pane (20); - at least one intermediate pane (21, 22) arranged between the outer pane (17) and the inner pane (20); - a pane checking device (24) supported on the door (3) in a manner rotatable about a rotation axis (28), wherein the pane checking device (24) pivots about the rotation axis (28) from an initial position (AP) into a final position (EP) upon introduction of the at least one intermediate pane (21, 22) in the direction of the outer pane (17); and a locking device (23) movably supported on the door (3), the locking device being movable from an unlocked state (Z1) in which the locking device (23) is disengaged from the inner pane (20) into a locked state (Z2) in which the locking device (23) at least sectionally clamps the inner pane (20), wherein the locking device (23) can only be moved from the unlocked state (Z1) into the locked state (Z2) when the pane checking device (24) is in the final position (EP), wherein the door providing a first intermediate pane (21) and a second intermediate pane (22), wherein the first intermediate pane (21) is arranged between the outer pane (17) and the second intermediate pane (22), wherein the second intermediate pane (22) is arranged between the inner pane (20) and the first intermediate pane (21), wherein the pane checking device (24) pivots about the rotation axis (28) from the initial position (AP) into an intermediate position (ZP) upon introduction of the first intermediate pane (21) in the direction of the outer pane (17), and wherein the pane checking device (24) pivots about the rotation axis (28) from the intermediate position (ZP) into the final position (EP) upon introduction of the second intermediate pane (22) in the direction of the outer pane (17).
2. Door according to claim 1, further comprising at least one door carrier (18, 19) fixedly or releasably connected with the outer pane (17).
3. The door of claim 2, wherein The pane checking device (24) is supported on the at least one door carrier (18, 19) in a manner rotatable about the rotation axis (28).
4. The door according to claim 2 or 3, characterized in that The locking device (23) is movably supported on the at least one door carrier (18, 19).
5. The door of claim 4, wherein The locking device (23) is movable along the at least one door carrier (18, 19) from the unlocked state (Z1) into the locked state (Z2).
6. The door according to claim 2 or 3, characterized in that The at least one door carrier (18, 19) is bonded with the outer pane (17).
7. The door according to claim 2 or 3, characterized in that The at least one door carrier (18, 19) is made of a plastic material.
8. The door according to claim 2 or 3, characterized in that A first door carrier (18) and a second door carrier (19), wherein each door carrier (18, 19) comprises a pane checking device (24) and a locking device (23).
9. The door according to any one of claims 1 to 3, characterized in that The pane check device (24) comprises a spring element (34) which elastically pretensions the pane check device (24) in the direction of the initial position (AP).
10. The door according to any one of claims 1 to 3, characterized in that The latching device (23) comprises a latching section (38) which in the latched state (Z2) is form-fittingly embedded into the pane check device (24).
11. The door of claim 10, wherein, The pane check device (24) comprises a plurality of arms (25-27), wherein the at least one intermediate pane (21, 22) rests on one of the arms (25-27) when it is introduced in the direction of the outer pane (17) such that the pane check device (24) pivots about the swivel axis (28).
12. The door of claim 11, wherein, The latching section (38) in the latched state (Z2) encloses or claps from behind one of the arms (25-27).
13. The door according to any one of claims 1 to 3, characterized in that The swivel axis (28) is oriented parallel to the y-direction of the door (3) or parallel to the x-direction of the door (3).
14. A domestic cooking appliance (1) having a cooking chamber (2) and a door (3) according to any one of claims 1-13 which is fixed on the cooking chamber (2).
Citation Information
Patent Citations
Device for securing glass of a door for a household appliance
WO2014207602A2