Household appliance pull-out system, household appliance with pull-out system and positioning method

Abstract

The present invention relates to a household appliance pull-out system (4, 5) having at least one telescopic track (5, 5A, 5B), the telescopic track having a component (15, 21) fixed to the appliance and a pull-out movable component (16) thererelative to it, wherein the component (15, 21) fixed to the appliance and the movable component (16) have relative to each other: a first end position corresponding to a more forcefully pushed-closed state; a second engagement position corresponding to a more forcefully pulled-away state; and at least one third engagement position located between the first end position and the second engagement position. The device is provided with a locking protrusion (17) that protrudes toward the corresponding other component (16; 15, 21) at either the component (15, 21) fixed to the device or at a movable component (16). In the path of the locking protrusion (17) with respect to the other component between a first position and a second position, at least one locking receiving element (18, 22) is provided at the other component (16, 15, 21) and inserted into the empty portion (20). The locking protrusion (17) can be locked into the locking receiving element in a disengaging manner in the third locking position.

Description

Technical Field

[0001] The present invention relates to a household appliance pull-out system having at least one telescopic track having a component fixed to the appliance and a pullable, movable component thererelatively thereto, wherein the component fixed to the appliance and the movable component have relative to each other: a first end position corresponding to a more forcefully pushed-closed state; a second end position corresponding to a more forcefully pulled-away state; and at least one third engagement position located between the first end position and the second engagement position. The present invention also relates to a household appliance having an electrically operated functional unit and a pull-out system, wherein the pull-out system has two telescopic rails, each having a component fixed to the appliance and connected to a drawer housing, and a movable component that can be pulled out relative to it. The movable component is connected to the functional unit, wherein the functional unit is fully pushed into the drawer housing of the household appliance in a first end position of the pull-out system, fully pulled out from the drawer housing in a second engaged position of the pull-out system, and partially pulled out from the drawer housing in at least one third engaged position of the pull-out system. Furthermore, the present invention relates to a method for positioning an electrically operated functional unit of a household appliance on the user side, wherein the functional unit is brought from the first engaged position to the third engaged position in the pull-out direction. The present invention is particularly advantageous for household cooking appliances, especially those having a steam treatment unit (“steam treatment drawer”) that can be pulled horizontally out from the drawer housing. Background Technology

[0002] DE 10 2014 114 557 A1 discloses a pull-out guide for household appliances or furniture, comprising at least three tracks movably supported relative to each other. A first track is fixedly attached to a cabinet body. At least one second track is disposed between the first and third tracks, and the third track is connectable to a push element and movable between a closed position and a pull-out position. A locking mechanism is provided to allow two tracks to be releasably secured to each other by a latch, and a locking mechanism is provided to lock the two tracks to each other in the pull-out position. The locking mechanism can be released by an unlocking part disposed on another track, and the locking mechanism has at least two adjacent locking positions to allow the two tracks to be locked in different locking positions. This provides reliable process control.

[0003] DE 10 2012 104 129 A1 discloses a pull-out guide. The pull-out guide includes a fixed guide rail and a movably supported slide rail, with an optional intermediate track arranged between the guide rail and the slide rail. At least one locking device is provided for releasably securing the slide rail to the guide rail, and the locking device includes a spring element and a engaging element. At least one locking device, the spring element, and the engaging element are arranged in a defined position on the outer side of the pull-out guide.

[0004] DE 20 2012 104 877 A1 discloses a retractable track pull-out device for use in drawer-like devices in appliances or furniture cabinets, particularly for food carriers in ovens, such as plates, grills, and the like. It has a base track and a pull-out track partially overlapping the base track, wherein a rolling element holder with rolling elements is laterally arranged between the base track and the pull-out track, and a receiving portion for locking the rolling element is constructed in at least one end region of the base track, its geometry adapted to the rolling element. The receiving part is constructed at the rolling surface of the base track in a manner with a ramp having a central opening, the opening having a diameter smaller than that of the rolling element, wherein the ramp is continuously arched outward on the circumferential side toward the pull-out track that overlaps with the base track, such that, in the pushing and / or pulling-out state of the track pull-out device, one of the rolling elements rolls upward along the ramp against the slope resistance of the arched protrusion, and then locks into the central opening of the ramp, and the pull-out track is locked at the base track.

[0005] DE 10 2010 064 083 A1 discloses a pull-out track system for a household appliance. The pull-out track system includes a first track element, a second track element, a locking member disposed on the first track element, and two mating locking members disposed on the second track element and corresponding to the locking member. The second track element is movable relative to the first track element in a longitudinal direction. Here, the locking member and the mating locking members are arranged such that the locking region of the locking member engages with the first mating locking member in the fully inserted end position of the second track element, and engages with the second mating locking member in the fully pulled-out end position of the second track element, thereby establishing a releasable locking connection between the two track elements.

[0006] DE 20 2009 002 073 A1 discloses a pull-out system, particularly for ovens, having a support bottom held at an opposite side at a slide rail of a pull-out guide, wherein the slide rail of the pull-out guide is fixed to a side grid or side wall, characterized in that at least one locking element is provided at the support bottom for locking in the pull-out guide in the insertion and / or removal positions.

[0007] DE 10 2013 102 949 A1 discloses a pull-out guide comprising a fixed guide rail and a slide rail movably supported by rolling elements, optionally with an intermediate rail arranged between the guide rail and the slide rail, and at least one locking device having a bendable spring element for releasably securing the slide rail, the guide rail, and / or the optional intermediate rail in a locked position, wherein the spring element engages between two rolling elements in the locked position to secure the slide rail, the guide rail, and / or the optional intermediate rail against displacement. The spring element is thus able to move via the rolling elements, placing the contact surfaces in a lubricated area, which extends service life.

[0008] DE 10 2012 211 205 A1 relates to a rail-pull-out device for a household appliance, having a first rail and at least one second rail, and a support device. The second rail is coupled to and movable relative to the first rail. The two rails are supported relative to each other by the support device. A locking device is provided to keep the two rails locked relative to each other in the maximum pulled-out position. The locking device is configured such that the locking force for maintaining the locked state can automatically change according to the loading of the second rail. The invention also relates to a cooking appliance with a rail-pull-out device and a method for operating the rail-pull-out device.

[0009] DE 10 2012 210 001 A1 relates to a track-pull-out device for a household appliance, having a first track and at least one second track coupled to the first track and movable relative to the first track, wherein, to achieve the movableness of the tracks relative to each other, a support portion having a plurality of support elements is constructed, and a locking device is constructed, by means of which the tracks are locked relative to each other in an end position, wherein the locking device has a locking imprint extending from the track wall into the running space of the support elements and narrowing the running space, the locking imprint being integrally constructed at the track wall, and the locking imprint moving across the track along the track's movement path by means of the support elements to lock the track, and when the end position is reached, the support elements are positioned behind and beside the locking imprint.

[0010] DE 20 2010 008 825 U1 discloses a pull-out device for drawer-like devices in appliance cabinets or furniture cabinets, particularly for track pull-out devices for cooking containers (such as plates, grills, and the like) in ovens, having a cabinet track fixed to the inner wall of the cabinet and a pull-out track retractable in the cabinet track, wherein ball guides are laterally constructed between the cabinet track and the pull-out track, characterized in that a receiving portion for the ball guides is laterally introduced in the front end region of the cabinet track, and in the pulled-out state, one of the balls of the ball guides engages in the receiving portion and locks the pull-out track.

[0011] DE 10 2005 028 674 A1 relates to a telescopic pull-out device for household appliances and furniture, particularly an oven pull-out system, having at least one first telescopic rail movably supported between an inserted position and a pulled-out position. To provide a telescopic pull-out device in which uncontrolled and / or undesirable automatic displacement of the first telescopic rail can be prevented, it is proposed that the telescopic pull-out device include at least one locking element for locking the first telescopic rail in the inserted position.

[0012] DE 20 2012 104 244 A1 Particularly for fully or partially pull-out telescopic tracks for appliance or furniture cabinets, having an inner track and an outer track partially overlapping the inner track, wherein at least one rolling element retainer with rolling elements is arranged between the inner track and the outer track which can be moved relative to it, the rolling elements being guided in the slide rails of the inner and outer tracks, and, if necessary, having a locking receiving portion of the inner track relative to the outer track, characterized in that: the inner track consists of two single tracks symmetrically fastened to each other in a releasable or non-releasable manner along the longitudinal direction, wherein, in a fully pull-out telescopic track, the inner track has a substantially X-shape. The transverse section of the inner rail is such that, in a partially pull-out telescopic rail, the inner rail has a substantially Y-shaped transverse section; in a fully pull-out telescopic rail, the outer rail consists of two single rails having an approximately semi-circular or circular shape in the transverse section, wherein the outer single rails partially overlap the inner rail, or more precisely, overlap such that the single rails overlap with the upper support legs of the Y-shaped inner rail in the transverse section, and a rolling element cage with rolling elements is arranged between each pairing section of the outer single rail and the inner rail, wherein the rolling elements of each rolling element cage are arranged in a geometrically right-angled triangular shape in the transverse section and are guided.

[0013] DE 10 2005 014 421 A1 relates to a pull-out system for kitchen appliances, particularly for stoves, the pull-out system having a cover element capable of being pulled down or pulled out horizontally from the kitchen appliance, wherein the cover element is connected to a guide having at least two retractable sliding rail elements that can be pushed together and pulled apart from each other. To achieve improved manipulation of the kitchen appliance, at least one of the rail elements is provided with a locking element, which allows another rail element, movable relative to one rail element, to lock in at least one predetermined locking position by means of the locking element. Summary of the Invention

[0014] The object of the present invention is to at least partially overcome the disadvantages of the prior art and, in particular, to provide a feasible, inexpensive, and readily implementable solution for pulling out a functional unit fixed to a household appliance pull-out system in the manner of a drawer having at least one engaged intermediate position.

[0015] This objective is achieved according to the features of the independent claim. In particular, preferred embodiments can be derived from the dependent claims.

[0016] The objective is achieved by a household appliance pull-out system having at least one telescopic track, the telescopic track having a component fixed to the appliance and a pull-out movable component relative to it, wherein the component fixed to the appliance and the movable component have the following relative to each other: - The first position relative to the state of more forceful engagement ("first end position"); - A second position, corresponding to a state in which the two components are more forcefully pulled apart from each other compared to the first end position, in which the two components are disengaged from each other (“second engaging position”); and - At least one third engagement position located between the first end position and the second engagement position. in, - At the component fixed to the appliance or at the movable component, there is a protruding element ("engaging protrusion") protruding toward the corresponding other component. - In the path between the first end position and the second engagement position of the engagement protrusion element with respect to the other component, there is at least one element (“engagement receiving element”) inserted into the void at the other component, and the engagement protrusion element can be disengaged into the engagement receiving element in the third engagement position.

[0017] The advantage of this pull-out system is that it can provide virtually unlimited third engaging positions at any location between the first and second end positions in a structurally simple manner. This, in turn, allows for the advantageous pulling out and reliable, precise positioning of the functional unit of the household appliance held by the pull-out system. This is particularly advantageous when the functional unit has multiple functional areas arranged sequentially in the pull-out direction, which can then be precisely and flexibly pulled out of the drawer housing for operation, or, especially for the protection of, for example, the user, by the third engaging areas. In particular, it prevents accidental closure due to impact or contact. Another advantage is the ease with which the engaging elements can be replaced when they wear out.

[0018] The pull-out system is designed for use within or with household appliances. These appliances can include, for example, cooking appliances (such as ovens, steam cookers, and vacuum cookers), dishwashers, sterilizers, and garment care appliances.

[0019] The components of the telescopic track are particularly constructed in a track-like manner, or in other words, constructed as tracks. The component fixed to the appliance can also be called a guide rail, and the movable component can also be called a slide rail. The two components of the telescopic track can move parallel to each other, as is known in principle, wherein the total length of the telescopic track changes with movement: when the movable component is pulled out relative to the component fixed to the appliance (and vice versa), the telescopic track becomes longer, and when it is pushed back in, it becomes shorter. The components or tracks of the telescopic track can be connected to each other, for example, by sliding bearings, rolling bearings, ball bearings, etc.

[0020] In a first end position (which could correspond to a disengageable engagement position), the two components are engaged more forcefully than in a second engagement position, which corresponds to an end position in which the two components are disengaged from each other. Between these two end positions, one or more third engagement positions may exist, corresponding to the engagement of the telescopic track or different states of its overall length.

[0021] The engaging position specifically prevents the two components from moving relative to each other until a defined (threshold) force acting in the direction of movement (here: in the pull-out or push-in direction) is reached or exceeded, thereby releasing the lock. The threshold force is advantageously designed so that, on the one hand, the user can feel the release of the lock, and on the other hand, it prevents large movements of the functional unit. One improvement is that the threshold force is the same for both the pull-out and push-in directions. Another improvement is that the threshold forces are different for the pull-out and push-in directions.

[0022] Engaging protrusions are, in particular, separately manufactured components that are subsequently fastened to the part fixed to the appliance or to the movable part. Engaging protrusions can be made of a different material than the part to which they are fastened. Engaging protrusions can project from the part fixed to the appliance toward the movable part, or conversely, from the movable part toward the part fixed to the appliance.

[0023] The engaging protrusion element engages in a engaging manner with the opposing engaging receiving element corresponding to the engaging position in the third engaging position.

[0024] The engaging protrusion can also be inserted into the recess. The engaging protrusion can be directly or indirectly fastened to the movable component. Indirect fastening includes, for example, fastening to a component that is itself fastened to the movable component at least in the direction of movement, such as a carrier frame.

[0025] The engaging protrusion element can be constructed, for example, in a pin-like or nose-like shape.

[0026] One design option involves the engaging protrusion and / or at least one engaging receiving element being made of a resilient material. This facilitates the engagement and disengagement of the engaging protrusion and engaging receiving element, particularly with the desired threshold force, and minimizes wear. An additional advantage is that the plastic element can be installed particularly easily at the corresponding part of the telescopic track, for example, by form-fitting insertion into a reserved opening, through injection molding, thermoforming, riveting, clamping nuts, sleeves, extrusion, tightening, etc.

[0027] One improvement is that the engaging protrusion and / or at least one engaging receiving element are made of plastic. If only the engaging protrusion or only the at least one engaging receiving element is made of a resilient material (especially plastic), then the other element can be made of, for example, metal. The components, especially the track, can be made of, for example, metal, thereby making the telescopic track particularly robust.

[0028] One design is that the engaging receiving element is (depending on the situation) a member protruding toward either the component fixed to the appliance or the movable component, the member having a recess arranged in the path of the engaging protrusion for engaging the engaging protrusion. This can be advantageously and particularly easily implemented.

[0029] One design features a dome-shaped engagement receiving element with a recess at its apex. This allows for reliable and smooth engagement and disengagement through structural simplicity. The dome-shaped protrusion can be constructed, for example, as a spherical, conical, or ellipsoidal cross-section. For engagement, the engagement protrusion first moves upwards on the surface of the dome-shaped protrusion under applied force until it sinks into the recess and engages. To disengage, force must be applied to slide the engagement protrusion out of the recess. This design also has the advantage that the engagement protrusion does not need to slide against the other component in contact between the first and second positions. The flat rear side of the dome-shaped protrusion can be connected to an engagement, clamping, or riveting area, through which the protrusion can be secured in the area of ​​the recess. Specifically, the engagement receiving element is made of a resilient material.

[0030] One design involves an engaging receiving element having at least one recess constructed within a clearance, the recess being arranged in the path of an engaging protrusion, which presses against another component at least outside the at least one recess between a first engaging position and a second engaging position. This design can be implemented particularly compactly because no protruding area is required at the engaging receiving element. The engaging protrusion contacts another component outside the engaging receiving element under pressure and sinks into its recess upon reaching the engaging receiving element. To disengage, force must be applied to allow the engaging protrusion to slide back out of the recess. The engaging protrusion advantageously possesses elasticity and advantageously deforms elastically outside the recess of the engaging receiving element.

[0031] One design involves engaging protruding elements that are directly or indirectly (e.g., at the carrier frame) fastened to the movable component, and engaging receiving elements arranged at the component fixed to the appliance. This can be achieved particularly easily in an advantageous manner.

[0032] One design embodiment of the household appliance pull-out system comprises two parallel telescopic rails, each having a component fixed to the appliance and a movable component. The movable components of the two parallel telescopic rails are connected by a carrier frame. At least one of the two telescopic rails is equipped as described above, particularly with an engaging protrusion or at least one engaging receiving element. The other telescopic rail can also be constructed as described above, but is not mandatory. Thus, the other telescopic rail, for example as a second position, can have only one end position without a locking mechanism and / or no third engaging position. The carrier frame is particularly used to receive / hold at least one functional unit of the household appliance and enables the drawer-like pull-out and insertion of the carrier frame. An improvement is that the carrier frame also provides electrical connectors for current supply and / or for signal transmission and / or data transmission.

[0033] One design approach that is structurally easy to implement is one in which either at least one engaging receiving element is mounted on the carrier frame, or an engaging protrusion element is mounted on the carrier frame. This, in particular, allows for a compact arrangement of the two components of the telescopic track and / or utilization of relatively large structural space.

[0034] One design involves positioning the first end of the telescopic rails in a fully engaged state, and positioning the second engagement position of the telescopic rails in a fully disengaged state. This design advantageously saves space.

[0035] The objective is also achieved by a household appliance having, in particular, an electrically operated functional unit and a pull-out system, wherein the pull-out system has two telescopic rails, each having a component fixed to the appliance and connected to the drawer housing, and a movable component that can be pulled out horizontally relative to it. The movable component is directly or indirectly (e.g., via a carrier frame) connected to the functional unit. The functional unit is fully pushed into the drawer housing of the appliance in a first end position, particularly an engaged position, fully pulled out from the drawer housing in a second engaged position (in the case of normal operation of the functional unit), and partially pulled out from the drawer housing in at least one third engaged position.

[0036] Household appliances can be constructed in a similar manner to household appliance pull-out systems and vice versa, and have the same advantages.

[0037] The drawer housing corresponds to the cabinet of the household appliance. The functional unit is specifically housed in a carrier frame held by the two telescopic rails. The functional unit, along with the carrier frame, may, functionally correspond to the drawer, which can be moved out of and into the drawer housing.

[0038] One design involves a functional unit having multiple sequentially arranged functional areas in a top view from the front of the appliance (when the user stands in front of the appliance and looks down at the functional unit), and more functional areas are accessible to the user in the second engaged position than in at least one third engaged position. This advantageously allows the functional unit to be partially pulled out of the drawer housing, locking in an intermediate position and allowing the exposed functional areas in this intermediate position to be reliably operated by the user. The further the functional unit is pulled out, the more functional areas tend to be accessible to the user.

[0039] One design option is that at least one of the telescopic tracks is a telescopic track as described above.

[0040] One design is that the electrically operated functional unit is a steam processing unit with a steam processing space capable of applying steam.

[0041] One design embodiment has an operating section in a top view viewed from the front of the household appliance, and a steam treatment space behind the operating section, wherein... - In the second engaged position, the user can operate not only the operating section but also the steam treatment space; and - In the third engaged position, the operating section can only be operated by the user.

[0042] This allows the operating section to be operated in the third engaged position in an advantageous manner, while the steam treatment space cannot be operated, for example, because the steam treatment space is still fully or partially pushed into the drawer housing and therefore cannot be opened. Particularly advantageous is that the operation continues during the steam treatment process.

[0043] One improvement is that the operating section has a user interface, for example, for setting steam treatment parameters (e.g., temperature and / or humidity in the steam treatment space and / or duration of the steam treatment process), selecting an area for the steam treatment program, a start button, etc. Another improvement is that the operating section has a water tank that can be filled from the operating section. The water tank is particularly equipped with an evaporator for supplying water to the steam treatment unit. The evaporator can be arranged in the operating section.

[0044] One improvement is that the steam processing space can be loaded with steam generated by the evaporator. The steam processing space can have a basin-shaped component ("steaming basin"), the upper part of which serves as a loading opening can be closed by means of a lid.

[0045] Furthermore, the objective is achieved by a method for positioning an electrically operated functional unit of a household appliance as described above on the user side, wherein the functional unit is brought from a first engaged position to a third engaged position in the pull-out direction of the functional unit.

[0046] One improvement is that the functional unit is brought from the third engaging position to the second engaging position by applying force in the pull-out direction.

[0047] One improvement is that the functional unit is brought back from the second engaging position to the third engaging position in the opposite direction of the pull-out direction, or is brought back to the first engaging position as it moves past the third engaging position.

[0048] The method can be constructed similarly to and vice versa of household appliances and / or household appliance pull-out systems, and has the same advantages. Attached Figure Description

[0049] The features, characteristics, and advantages of the invention described above, as well as the methods and means of implementing them, will be more clearly and explicitly understood in conjunction with the following illustrative description of the embodiments, which are explained in detail with reference to the accompanying drawings. Wherein: Figure 1 A partial view of a household appliance with a drawer-shaped steam treatment unit is shown in the oblique view. Figure 2 The oblique view shows the source Figure 1 Other partial views of household appliances; Figure 3 The oblique view shows the first embodiment from Figure 1 Telescopic tracks for household appliances; and Figure 4 The oblique view shows the second embodiment from Figure 1 Telescopic tracks for household appliances. Detailed Implementation

[0050] Figure 1 A partial view of a household cooking appliance 1 is shown in the oblique front view. This appliance is a double-layered cooking appliance with a drawer-shaped, electrically operated steam treatment unit 2. The steam treatment unit 2 can be moved horizontally forward from the drawer housing 3 and conversely, can be moved backward into the drawer housing 3, as indicated by the double-headed arrows.

[0051] For this purpose, the steam treatment unit 2 is placed into the carrier frame 4, which is connected to the drawer housing 3 by two parallel telescopic rails 5 (arranged on the left and right sides in the front view). The carrier frame 4 together with the two telescopic rails 5 can be regarded as, or referred to as, the pull-out system 4, 5.

[0052] The drawer housing 3 can be part of the outer shell or the cabinet 6, which has a space 7 above the drawer housing 3 for at least one other cooking appliance (not shown), such as an oven. Such a household cooking appliance 1 can also be referred to as a "multi-chamber" appliance.

[0053] The steam treatment unit 2 has a front panel 8 on the front side, and an electrically operated operating section 9 is adjacent to the rear of the front panel. Behind the operating section 9, a steaming basin 10 can be placed into a carrier frame 4, the steaming basin together with a lid (not shown) that can be placed on the top side to form a steam treatment space 11.

[0054] At least one of the two telescopic rails 5 is configured to allow the steam handling unit 2 to be fully inserted into the drawer housing 3 in a first end position (not shown), particularly in an engaged position. The front panel 8 closes flush with the front side of the household cooking appliance 1.

[0055] In the second engaged position (not shown) of the pull-out systems 4 and 5, the steam treatment unit 2 is actually pulled out completely from the drawer housing 3. The steam treatment space 11 is then exposed, and it becomes possible, for example, to remove the lid from the steaming pan 10 and to fill the steaming pan 10 with food.

[0056] In the third engaged position shown, the steam treatment unit 2 is partially pulled out of the drawer housing 3, or more precisely, pulled out in such a way that the operating section 9 is fully exposed and thus operable. For example, the water tank 12 can be filled, or settings can be made at the user interface 13. The steam treatment space 11 is only partially exposed. Thus, the contents of the steaming pan 10 can be viewed through the transparent lid, for example, to visually see the state of the food being cooked; however, the lid cannot be operated to remove it from the steaming pan 10. This advantageously ensures that the steam treatment space 11 will not be accidentally opened.

[0057] The user can then pull out the steam treatment unit 2 from the first end position in a drawer-like manner, and then reliably operate the operating section 9 in the third engaged position, or move past the third engaged position to reach the second engaged position where it is fully pulled out. Similarly, the reverse movement process can be performed.

[0058] Figure 2 The oblique view shows another partial view of the household cooking appliance 1, more specifically in the area of ​​the carrier frame 4 and the telescopic tracks 5, 5A on the right side when viewed from the front, without the steam treatment unit 2. Figure 3 The oblique view shows the source Figure 2 The telescopic tracks 5 and 5A together with the engaging protrusions of the carrier frame 4.

[0059] The telescopic track 5A has a component fixed to the appliance in the form of a guide rail 15, which is fastened to the drawer housing 3, and a component connected to the carrier frame 4 in the form of a slide rail 16, which is capable of longitudinal movement thereon. The guide rail 15 and the slide rail 16 are shown here in a first end position, in which they are maximally inserted into each other, corresponding to the insertion of the steam treatment unit 2.

[0060] A pin-shaped engaging protrusion (“pressure pin” 17) protruding along the direction of the guide rail 15 is fastened at the carrier frame 4, its path extending linearly along the guide rail 15. Within this path is a dome-shaped engaging receiving element 18, embedded in a recess (not shown) in the guide rail 15, protruding along the direction of the slide rail 16, the engaging receiving element having a centrally located recess 19. If the steam treatment unit 2 moves out together with the carrier frame 4 from the first end position toward the second end position, the pressure pin 17 contacts the engaging receiving element 18, slides upward there, and then slides into the recess 19. As it slides into the recess 19, the telescopic track 5A is in a third engaging position, which can be disengaged or released only if the applied force along the direction of movement reaches a predetermined threshold.

[0061] In one variation, the pressure pin 17 is a rigid element, for example, made of metal or hard plastic, while the engaging receiving element 18 is made of soft, elastic plastic. The pressure pin 17 is thus able to engage and slide into the recess 19, in which case the engaging receiving element 18 then springs back. To disengage, a force must be applied to move the pressure pin 17, which causes the engaging receiving element 18 to elastically deform until it slides out of the recess 19.

[0062] In another variation, the pressure pin 17 is made of a soft, elastic plastic, while the engaging receiving element 18 is a rigid element. As it slides past the engaging receiving element 18, the pressure pin 17 deforms, for example, bends or retracts. In yet another variation, both the pressure pin 17 and the engaging receiving element 18 are made of soft, elastic plastic. In yet another variation, the pressure pin 17 has a ball that can be elastically pressed into a sleeve.

[0063] What all these variations have in common is that the pressure pin 17 does not need to slide on the guide rail 15 in a contact manner outside the engaging receiving element 18, but can move thereatably.

[0064] Figure 4 The telescopic tracks 5 and 5B of a household cooking appliance 1 are shown in the oblique view. These tracks 5 and 5B can be used as an alternative to telescopic track 5A. Telescopic track 5B has a similar basic structure to telescopic track 5A. Now, as an alternative to the protruding engaging receiving element 18, engaging receiving element 22 engages with the clearance 20 of guide rail 21 without or with virtually no engagement / only slightly protruding engagement. Engaging receiving element 22 has a recess 23 arranged in the path of pressure pin 17. Outside the recess 23, the elastic, especially softly elastic, pressure pin 17 presses against guide rail 15 and elastically deforms, for example, bends therein. As guide rail 15 and slide rail 16 move relative to each other, sliding resistance is thus generated by the pressure pin 17. If the pressure pin 17 reaches the recess 23, the pressure pin relaxes and is able to slide out of the recess 23 only after overcoming a certain force (which is at least partially required to re-bend the pressure pin 17). This structure is particularly space-saving. In addition, the sliding resistance helps prevent excessively rapid relative movement and thus, for example, prevents the food in the steaming pan 20 from shaking or overflowing.

[0065] Of course, the present invention is not limited to the embodiments shown.

[0066] Generally speaking, unless explicitly excluded by expressions such as "exactly one", "one", "a kind", etc. can be understood as singular or plural, especially in the sense of "at least one" or "one or more".

[0067] Similarly, unless explicitly excluded, the numerical specification can include exactly the given number and also the common tolerance range.

[0068] List of reference numerals in the attached diagram: 1. Household cooking utensils 2 Steam processing unit 3. Drawer shell 4. Carrier Frame 5 Telescopic Rail 5A Telescopic Rail 5B Telescopic Rail 6 cabinets 7 Space 8. Front Panel 9. Operating Section 10 Steaming basins 11 Steam handling space 12 water tanks 13 User Interface 15 guide rails 16 slide rails 17 Pressure pins 18. Snap-on receiving element 19 concavity 20. Empty space 21 guide rails 22-card receiving element 23 recess

Claims

1. A household appliance pull-out system (4, 5) having at least one telescopic track (5, 5A, 5B), the telescopic track having a component (15, 21) fixed to the appliance and a pull-out, movable component (16) relative to it, wherein, The components (15, 21) fixed to the appliance and the movable component (16) have the following characteristics relative to each other: - The first end position corresponding to a state of more forceful engagement; - The second engaging position corresponding to a state where they are pulled apart more forcefully; and - At least one third engaging position located between the first end position and the second engaging position, wherein, - Engaging protrusions (17) protruding toward the corresponding other component (16; 15, 21) are fastened at the component (15, 21) fixed to the appliance or at the movable component (16). - In the path of the engaging protrusion (17) with respect to the other component between the first and second positions, there is at least one engaging receiving element (18, 22) inserted into the empty portion (20) at the other component (16; 15, 21), and the engaging protrusion (17) can engage into the engaging receiving element in a disengaging manner in the third engaging position.

2. The household appliance pull-out system (4, 5) according to claim 1, wherein, The engaging protrusion element (17) and / or at least one engaging receiving element (18, 22) are made of an elastic material, especially plastic.

3. The household appliance pull-out system (4, 5) according to claim 2, wherein, The engaging receiving element (18) is a member that protrudes toward the component (15, 21) fixed to the appliance or toward the movable component (16), the member having a recess (19) arranged in the path of the engaging protrusion (17) for engaging the engaging protrusion (17).

4. The household appliance pull-out system (4, 5) according to claim 3, wherein, The engaging receiving element (18) protrudes in a dome shape and the recess (19) is located at the apex of the engaging receiving element.

5. The household appliance pull-out system (4, 5) according to claim 2, wherein, - The engaging receiving element (22) has at least one recess (23) constructed in the empty portion (20), the recess being arranged in the path of the engaging protrusion element (17), and - The engaging protrusion (17) presses against the other component (15, 21) at least outside the at least one recess (23) between the first engaging position and the second engaging position.

6. The household appliance pull-out system (4, 5) according to any one of the preceding claims, wherein, The engaging protrusion (17) is fastened to the movable part (16), and the engaging receiving element (22) is arranged at the part (15, 21) fixed to the appliance.

7. The household appliance pull-out system (4, 5) according to claim 6, wherein, - The household appliance pull-out system (4, 5) has two parallel telescopic tracks (5, 5A, 5B), each of which has a component (15, 21) fixed to the appliance and a movable component (16). The movable components (16) of the two parallel telescopic tracks are connected by a carrier frame (4). - Of the telescopic tracks (5, 5A, 5B), at least one telescopic track (5, 5A, 5B) is equipped with an engaging protrusion element (17) or at least one engaging receiving element (18, 22), and - The at least one engaging receiving element (18, 22) or the engaging protrusion element (17) is mounted on the carrier frame (4).

8. The household appliance pull-out system (4, 5) according to any one of the preceding claims, wherein, The first end position corresponds to the fully engaged state, and the second engaging position corresponds to the fully disengaged state.

9. A household appliance (1), which has an electrically operated functional unit (2) and a household appliance pull-out system (4, 5), wherein, - The household appliance pull-out system (4, 5) has two telescopic tracks (5), each of which has a component (15, 21) fixed to the appliance and connected to the drawer housing (3), and a movable component (16) that can be pulled out relative to it. The movable component is connected to the functional unit (2). Among them, the functional unit (2) - The drawer is fully pushed into the drawer housing (3) at the first end position, especially in the engaging position, of the household appliance pull-out system (4, 5); - The drawer is fully pulled out from the drawer housing (3) in the second engaged position of the household appliance pull-out system (4, 5); and - The drawer is partially pulled out from the drawer housing (3) in at least one third engaging position of the household appliance pull-out system (4, 5). And among them, - The functional unit (2) has multiple sequentially arranged functional areas (9, 11) in a top view viewed from the front of the household appliance (1), and - In the second engagement position, the user can access more functional areas (9, 11) than in the at least one third engagement position.

10. The household appliance (1) according to claim 9, wherein, At least one of the telescopic tracks (5) is a telescopic track (5, 5A, 5B) according to any one of claims 1 to 8.

11. The household appliance (1) according to any one of claims 9 to 10, wherein, The electrically operated functional unit (2) is a steam processing unit with a processing space (11) capable of applying steam.

12. The household appliance (1) according to claim 11, wherein, The steam treatment unit (2) has an operating section (9) in a top view viewed from the front of the household appliance (1) and a steam treatment space (11) behind the operating section, wherein, - In the second engaged position, the operating section (9) and the steam treatment space (11) can be operated from the user's side; and - In the third engaged position, only the operating section (9) can be operated on the user side.

13. A method for positioning a functional unit (2) for electrically operating a household appliance (1) according to any one of claims 9 to 12 on the user side, wherein the functional unit (2) is brought from a first engaging position to a third engaging position in a pull-out direction.

Images