EP2182145B1 - Household device door with bar handle - Google Patents

Description

The invention relates to a household appliance door with a door handle designed as a bow handle, wherein a handle bar of the bow handle has at least one operating element, as well as a household appliance with such a household appliance door.

The front of commercial household appliances, such as cooking appliances such as ovens or stoves, is often divided into a control panel and a door. In between, for example, in Gargeräte the blowdown usually the device ventilation for heat dissipation. The height of the gap is today, depending on the device concept, between 4 mm and 12 mm, depending on the device concept. There are also cooking appliances with one-piece front construction and a vent upwards known.

Out DE 100 45 236 A1 discloses a built-in electrical appliance for installation behind a furniture front panel with a hinged front flap for attaching the furniture front panel and attachable to the furniture front panel handle for pivoting the front door, wherein the handle at least one display element for displaying an operating state or an operating size of the built-in electrical appliance is arranged.

From the catalog "Attitude by David Lewis" of the company Scholtès a fixed, obliquely arranged handle strip is known, on the front side touch control buttons and display elements are available and whose back is designed as a recessed grip. This catalog also describes a fixed door handle with a vertical front, on the touch control buttons and display elements are present, the back is connected via a handle with the door front.

The DE 34 04 220 A1 discloses a retractable door handle, especially for oven doors of herds. Here, a latching connection for a retractable in the rest position in a toleration of the door front door handle in the working position with the door open position is secured substantially form-fitting by a locking element. When the door is closed, this latching connection is unlocked via a control mechanism unlocked by Handbeaufschlagung the door handle in the direction of engagement.

The EP 1 640 668 A2 discloses a handle bar for a household appliance, in particular stove or oven, with an elongate handle and at least one control element arranged thereon for selecting a parameter and / or a mode for the operation of the household appliance and with a transmission device for forwarding the output signal of the operating element to a device control of household appliance. To specify a handle bar in which the ease of use for the user and at the same time the overall visual impression is to be improved, the control element is designed as a rotary knob with an integrated button and arranged at an end face of the handle.

It is the object of the present invention to provide a household appliance door, which provides a particularly high operating comfort. This object is achieved by means of a household appliance door and a household appliance according to the respective independent claim. Advantageous embodiments are in particular the dependent claims.

The household appliance door is equipped with a door handle designed as a bow handle, wherein the bow handle has at least one bow member, preferably two bow members, and a handle bar, wherein the handle bar is fastened by means of at least one bracket part on the appliance door. The handle bar has at least one operating element, d. h., At least one actuator (button, switch, slider, etc.) or display element (lamp, display panel, etc.).

The door handle is further at least partially retractable in the household appliance door, in particular in a door front. This makes it possible to position the actuating elements matched to the associated household appliance on the door handle and on the door front in the design of the household appliance door. In particular, such a good coordination between Griffergonomie and operator ergonomics at the same time space-saving design is possible. Because conventionally, there is a conflict of objectives between a - more palpable and optically coarse-looking - large control surface and a haptic advantageous narrower handlebar. In the present household appliance door, however, the controls can be divided individually between the door handle and door front and still form a seem as belonging together control panel. As a result, the handlebar can be ergonomically designed without the operator ergonomics suffers significantly. In addition, the door front is easier to clean when the door handle retracts and appears more favorably proportioned.

A partial retractability is understood to mean that at least the strap parts of the strap handle can be lowered in the household appliance door, while the handle bar can rest on the front of the door. Then only two small cutouts for the bracket parts need to be introduced into the front of the door. Alternatively, the handle bar can be partially or completely retracted in the household appliance door. Then the neckline must also be able to accommodate the handlebar.

For compact design, the appliance door has at least one vent, in particular for warm air, which is covered by the retracted door handle, in particular the handle bar. It is then particularly preferred if the at least one blow-out opening is introduced into a receptacle for the door handle, in particular at least one blow-out opening which communicates with a cooling air channel of the cooking appliance stands. In particular, in this case, it is preferred if the cooking appliance is switched off with recessed door handle and is turned on when the door handle is extended to allow sufficient removal of exhaust air. If the temperatures of the exhausted exhaust air require it, special gripping and blowing areas can be marked accordingly graphically, photometrically or by a formal design (eg a grille) to prevent an operator or the handlebar from being blown from the exhaust air ,

To avoid a blowing of the handle bar with exhaust air, it is particularly preferred if an air duct is arranged on a rear side of the door handle, which is adapted to pass air from the vent opening on the handlebar.

In the extended state of the door handle can be embraced in an embodiment for handling. However, if an air duct is provided which is adapted to pass air from the vent on one side of the handle bar, it is preferred if a handle is disposed on the handle bar, the engagement opening of which is on the other side of the handle bar. This clearly separates the exhaust air area and the engagement area.

For ease of manufacture, it is preferred if the handle shell and the air duct are separated by a, in particular common, partition.

Alternatively or additionally, at least one blow-out opening may be arranged in the door handle itself, in the bracket part and / or in the handle bar.

The controls can basically be divided freely between the door handle, in particular its handlebar, and door front. Thus, operating and / or display elements may be present both in the handle bar and in the door front. However, it is preferred if all actuators (possibly without a main switch) are arranged in the handle bar, as this way the door front can be made simpler. Also, it may be possible to dispense with a separate control panel if necessary. In particular, can Handle made of a material that supports the inclusion of actuators. Thus, at least the front side of the handle bar may consist of a metal (eg brushed stainless steel or aluminum) and be provided with touch control buttons. Alternatively, it is possible in principle to include all operating elements, that is to say actuating elements and display elements, in the door handle. It is particularly preferred if the actuators are arranged in a row or more parallel rows and the display elements are arranged in a straight row or a plurality of parallel rows. It is preferred if the rows of actuators and the display elements are parallel to each other. It is in the event that the actuators are arranged in the handle bar and the display elements are integrated in the door front, particularly preferred when the actuators and the display elements have the same distance from a gap between the handle bar and the door front.

It is particularly preferred if at least one display element, for example a lamp or a display field, for. B. a liquid crystal or LED display, is integrated in a surface of a door front adjacent to the retracted door handle. Then, in particular when the door handle is retracted, but also when the door handle has been extended, a functionally associated panel may be provided. An operator will especially associate related actuators in the door handle with such a display element. At the same time no space for the display element needs to be provided in the door handle, which allows a slim handle especially in liquid crystal or LED displays. In addition, a different from an integration in the door handle appearance of the display element can be achieved in a simple manner. It is particularly preferred if all the display panels are integrated in the door front, especially adjacent to the retracted door handle.

In order to achieve a particularly discreet appearance, it is preferred if the front of the door at least in the region of the at least one display element has a translucent front panel, preferably a front glass plate, and at least one integrated in the door front display element behind the front panel and thus protected. In particular, a tinted front panel, in particular front glass panel is preferred because the display element is then not or hardly visible in the off state, the display in the on state, however, clearly visible is. As a display element, for example, a lamp, liquid crystal display or an LED display can be used. For good visibility even through the front surface through the display element is preferably luminous.

However, it may also be preferred if at least one display element is arranged in the door handle, since this results in a particularly intuitively detectable interaction between the display element, in particular a lamp, and the associated actuating element. For example, next to an on / off button, a small lamp may be positioned that only lights up when it is switched on.

For ease of operation, it is preferred if a front side of the handlebar is flattened, d. H. just or slightly curved.

To reduce data transmission errors and achieve a compact design of the household appliance, a household appliance door is preferred in which an electronic control element is integrated in the handlebar. This is also largely thermally insulated from the rest of the domestic appliance in the extended state of the door handle, so that can be dispensed with a complex cooling of the electronics.

For particularly effective related appearance as a control panel, it is preferred if a front side of the retracted handle bar flush with the front of the door, in particular flush. Also, a particularly good cleanability and quiet appearance is achieved.

For particularly simple operation, a household appliance is preferred in which the household appliance is turned off when the door handle is sunk and is turned on when the door handle is extended. It is particularly preferred if the household appliance is set up to automatically switch on when the door handle is extended or extended as such, and automatically switches off when the door handle is sunk or when it is lowered. In general, a device state (for example 'on' / 'off', lighting state and much more) may be coupled to the retractability of the door handle. Thus, first, a thermal decoupling can be guaranteed with the household appliance, and secondly, so from the distance to easily visible feedback an operator via the on / off state of the device are transmitted. Also can be dispensed with a separate on / off switch, which saves even more space.

In general, the door handle can also be regarded as a combined door handle / control panel device.

The method of the door handle can be done purely mechanically, z. Example by means of a "ballpoint pen mechanism" 'in which in the retracted state by pressure on the front of the door handle this or this is pressed slightly to then move by means of a built-in spring mechanism' automatically in the extended state in which it is locked , Alternatively, the movement can be supported, for example by means of a motor, especially an electromechanical motor, namely z. B. triggered by a mechanical actuation or actuation of a corresponding actuator.

The household appliance has at least one such household appliance door. The invention can be used particularly advantageously in a household appliance which is designed as a cooking appliance, in particular a stove or oven.

For easy cleaning and achieving a high-quality appearance in particular a household appliance is preferred, which has no separate control panel. The front of the household appliance then consists in particular only of the household appliance door with their individual elements (front panel, door handle / control panel combination, etc.).

FIG 1

zeigt in Ansicht von schräg vorne eine Türfront eines Einbaubackofens mit einem verfahrbaren Türgriff in der Ruhestellung;

FIG 2

zeigt in Ansicht von schräg vorne die Frontseite des Einbaubackofens aus FIG 1 mit ausgefahrenem Türgriff;

FIG 3

zeigt eine Schnittdarstellung in Seitenansicht durch die Tür des Einbaubackofens aus FIG 1 entlang einer Schnittlinie A-A aus FIG 1;

FIG 4

zeigt eine Schnittdarstellung in Seitenansicht durch die Tür des Einbaubackofens aus FIG 1 entlang einer Schnittlinie B-B aus FIG 1.

In the following figures, the invention will be described schematically with reference to an embodiment schematically. For the sake of simplicity of description, this embodiment will be described with reference to a door handle having an operating function, it being understood, however, that the description applies equally to a control panel with a handle function.

FIG. 1

shows in oblique view from the front a door front of a built-in oven with a movable door handle in the rest position;

FIG. 2

shows in oblique view from the front of the built-in oven FIG. 1 with extended door handle;

FIG. 3

shows a sectional view in side view through the door of the built-in oven FIG. 1 along a section line AA FIG. 1 ;

FIG. 4

shows a sectional view in side view through the door of the built-in oven FIG. 1 along a section line BB FIG. 1 ,

FIG. 1 shows in front view obliquely from the front door F of a baking oven door 2 of a built-in oven 1, which is installed in a kitchen front K. The built-in oven 1 has no separate, separate from the oven door 2 control panel. Rather, there are actuators in the form of z. B. touch control sensor buttons 3 horizontally arranged in a row on a handle bar 4 of a movable bow handle 5, which is completely sunk here in the door front F. This can also be described as a built-in oven 1, which has an oven door 2 with a movable control panel 3 with handle function. The front side 6 of the handle bar 4 is flush with the door front F and thus also flat. The display elements 7 are not located on the handle bar 4, but are arranged above the handle bar 4 in a row parallel to the sensor buttons 3 in the door front F. Functionally associated operating elements 3 and display elements 7 are arranged as close to each other as possible. In particular, display elements 7 whose display can be changed by actuating at least one specific actuating element 3 are arranged as close as possible to this at least one actuating element 3. Thus, an on / off button on the handle bar 4 may be adjacent to an on / off lamp (not shown) in the door front 2; Also, cursor keys may be located near a cursor-controllable liquid crystal screen. Due to the close arrangement of the sensor buttons 3 with the display elements 7 an operator perceived as belonging together control panel 3.7 is provided. However, the height of the handle bar 4 can be made narrower than in the handle bar 5 integrated display elements 7, which allows a better feel and a more discreet appearance. The actuators may generally include other types of switches, such as linear sliders, circular sliders, etc.

In detail, the surface of the handle bar 4 and the capacitive sensor button 3 made of brushed stainless steel. The door front F is covered except for a (not shown) receptacle for the door handle 5 with a front panel made of darkened glass. The display elements 7 are mounted directly behind the glass plate and designed as LED displays, so that the displayed characters (symbols, numbers, letters, etc.) are visible through the glass plate, but not the display elements 5 as such. This causes a very discreet and high-quality look, especially in the off state. The built-in oven 1 is turned off here in the sunk rest position.

FIG. 2 Behind the door handle 3 is located in the oven door 2, a handle receptacle 8 for the door handle 5. The transition of the door handle 3 from the in FIG. 1 shown sunk rest position in the in FIG. 2 shown extended working position is done in this embodiment so that by pressing an operator on the front side 6 of the recessed door handle 5 this is easily pressed into the door 1. With the following release of the door handle 5, this moves out to the front until it reaches its working position. In the working position, the door handle 5 can be used to open and close the oven door 2. For this purpose, a hand can dive into a handle gap 9, which has formed between the handle bar 4 and the door front F. The depth of the handle gap 9 is determined inter alia by the extendable length of the bracket parts 10, which hold the handlebar 4. Also, the function of the oven 1 can now be set via the actuators 3, since the built-in oven 1 is turned on in the working position. Despite the now preferred actuators 3, the control panel with the actuators 3 and the display elements is still perceived as belonging together, since the controls 3.7 are still close together when viewed from the front.

FIG. 3 shows in side view a simplified section through the oven door 2 along the in FIG. 1 illustrated section line AA. In this case, the handle bar 4 is drawn through in the rest position and shown in dashed lines in the working position. In the resting state, the right, flat front side 6 of the handle bar 4 is flush and flush with the door front F from, more precisely, with the surface of a front glass plate 11. At the back, the handle bar 4 is added to the handle receptacle 8 so that they are still slightly backwards in the door 2 can be pressed to activate a ballpoint pen mechanism (not shown) to extend to the working position. The receptacle 8 is connected at its rear end with a blow-out channel 12, which opens into the receptacle 8 at a blow-out opening 13. The exhaust duct 12 represents the downstream end of a cooling air circulation duct (not shown), which draws in cooling air to the cooking chamber for its thermal insulation against the environment leads around and blows out the heated air through the exhaust port 13. This ensures that the exhaust opening 13 is located in the interior of the door front F. In the rest position, the handle bar 4 blocks the exhaust opening 13, wherein when the handle bar sunken 4 no functions warming the cooking chamber can be activated. In the embodiment shown, it is even the case that the oven is switched off with recessed door handle 5. By sinking the door handle 5, an operator can thus turn off the device, a separate actuator can be omitted, which increases the clarity.

In the plotted marked extended working position results in the gap 9 between the handle bar 4 and door front F, through which a hand of an operator to the handle of the handlebar 4 can dip. The handle bar 4 is configured to be curved backwards for easy gripping. However, the shape of the handle back is not limited to this; For example, it may also have one or more flat chamfers or be flat. In the working position, the handle bar 4, the exhaust port 13 free. In this position the oven is switched on. By moving out of the door handle 5, an operator can thus switch on the device and operate via the actuating elements 3. In the interior of the door handle 3 is also a control electronics 14 for operating the actuators 3 and also the display elements 7. Because the control electronics 14 is separated by the gap 9 of the oven during operation of the cooking oven door 2, a thermal decoupling from Garraum achieved, due to which the control electronics 14 no longer or only needs to be cooled passively, which simplifies the production and allows a compact design.

FIG. 4 shows a sectional view in side view analogous to FIG. 3 for a door handle 15 according to another embodiment. To blow a hand of the operator or the handlebar 16 by exhaust air from the in FIG. 3 To prevent the exhaust opening 13 shown, behind the handle bar 16, a plastic air baffle 17 is arranged, which deflects the exhaust air flowing from the exhaust opening 13 over the edge nearer, here: upper, side of the handle bar 16, as indicated by the arrows. For further protection against the exhaust air or a pinching of fingers, the air baffle 17 is shielded by an exhaust grille 18. The air guide plate 17 may for example be attached to the bracket parts 10.

For even further protection against the exhaust air, the air guide plate 17 is further configured and arranged so that it together with the handle bar 16 creates a recessed grip 19, the engagement opening 20 is on that, here: lower, side opposite to the side, too the exhaust air is blown out. Alternatively, the air guide plate 17 may terminate at a sufficient distance from the handle bar 4, so that the handle bar 4 can be completely encompassed.

Alternatively or additionally, for the separation between the exhaust air area and the grip area, a marking of the exhaust air area and / or the grip area can be achieved, for example, graphically by a colored design of the grip area, lighting technology by illumination of the grip area or by a formal design of the grip area by means of a surface finish. Blowing with exhaust air can be constructively, for example, prevented by the fact that the exhaust opening does not extend over the entire (horizontal) length of the recording, but extends in this embodiment, only laterally outside of the bracket members 10, while between the two bracket parts 10 no Blow-out is present. But since an operator grips the handlebar 4 instinctively between two bracket parts 10, his hand will not be blown by the blowout port 13. By fixing the position of the bracket parts 10, a balance between the length of the exhaust opening 13 and the length of the effective grip section can be made depending on the design requirement. It may, for example, be preferred if the length of the exhaust opening does not exceed half or one third of the length of the handle receptacle 8.

Of course, the present invention is not limited to the embodiment shown. The door handle or the handle bar may not only be aligned horizontally, but also vertically. The actuators (Metaltouch button, etc.) are then preferably arranged one above the other on the handle bar, and the controls are preferably also arranged one above the other in the door front (in particular behind a front glass plate), preferably near the edge of the handle bar.

Also, the invention is not limited to the described length or shape of the exhaust opening in the receptacle. Also, the exhaust opening need not be arranged in the receptacle. Alternatively like the exhaust duct, for example, by the temple parts be guided. The exhaust opening may then be located on an underside of the bracket parts; This arrangement has the advantage that the handlebar can be gripped without blowing an operator with warm air over its entire length. Again, the exhaust outlet would be blocked in the retracted state and released in the extended state.

In addition, the shape of the door handle is not limited. For example, the front may be curved forward, e.g. B. cambered to be. Also, the handle bar may extend over the entire extent of the door front. The front of the handle bar may also logo carrier, etc. have. The handle bar may for example also have a rectangular cross-sectional profile.

Furthermore, the invention is not limited to built-in appliances, but may for example include individual devices. Also, other cooking appliances are included as an oven, such. As a stove or a microwave oven. Also, the invention includes other household appliances as cooking appliances, such as a refrigerator, a dishwasher, a washing machine, a tumble dryer, a washer-dryer and so on.

LIST OF REFERENCE NUMBERS

1

built-in oven

2

oven door

3

SENSORswitches

4

Grab bars

5

bow handle

6

front

7

display element

8th

handle seat

9

handle gap

10

Ironing part

11

Front glass plate

12

blow-out

13

exhaust vent

14

controls electronics

15

door handle

16

Grab bars

17

Air baffle

18

Abluftgitter

19

grip

20

engagement opening

F

front door

K

kitchen cabinetry

Claims (14)

1. Household appliance door (2) with a door handle embodied as a bar handle (5; 15), with at least one bar section (10) and a handlebar (4; 16), wherein the handlebar (4; 16) has at least one control element (3), characterised in that the door handle (5) can be recessed at least partially in the household appliance door (2) and that the household appliance door (2) has a ventilation opening (13), which is covered by the retracted door handle (5; 15).
2. Household appliance door (2) according to claim 1, characterised in that all actuation elements (3) are arranged on the handlebar (4; 16).
3. Household appliance door (2) according to claim 1 or 2, characterised in that at least one display element (7) in a surface of a door front (F) is arranged adjacent to the retracted handlebar (4; 16).
4. Household appliance door (2) according to claim 1 or 2, characterised in that the at least one display element (7) arranged in the door front (F) is arranged behind a tinted front glass panel (11).
5. Household appliance door (2) according to one of the preceding claims, characterised in that at least one display element is arranged in the handlebar (4; 16).
6. Household appliance door (2) according to one of the preceding claims, characterised in that a front side (6) of the handlebar (4; 16) is flattened.
7. Household appliance door (2) according to one of the preceding claims, characterised in that control element electronics (14) are integrated in the handlebar (4; 16).
8. Household appliance door (2) according to one of the preceding claims, characterised in that a front side (6) of the retracted handlebar (4; 16) is flush with the door front (F), in particular flush with the adjacent surfaces.
9. Household appliance door (2) according to one of the preceding claims, characterised in that on its rear side the door handle (15) has an air guide plate (17), which is designed to guide exhaust air from the ventilation opening (13) past the handlebar (15).
10. Household appliance door (2) according to claim 9, characterised in that the air guide plate (17) is designed to guide air from the ventilation opening (13) past a side of the handlebar (16), and a moulded recess (19) is arranged on the handlebar (16), the access opening (20) of which is disposed on the other side of the handlebar (16).
11. Household appliance door (2) according to claim 10, characterised in that the air guide plate (17) forms a wall of the moulded recess (19).
12. Household appliance (1), in particular cooking appliance, characterised in that the household appliance (1) has at least one household appliance door (2) according to one of the preceding claims.
13. Household appliance (1) according to claim 12, characterised in that the household appliance (1) does not have a control panel that is separate from the household appliance door (2).
14. Household appliance (1) according to one of claims 12 or 13, characterised in that the household appliance (1) is switched off when the door handle is retracted and is switched on when the door handle is extended.

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