Handle for a domestic appliance having a specific closing element opening device, closing element for a domestic appliance, and domestic appliance

Abstract

One aspect of the invention relates to a handle (4) for a household appliance (1), comprising a handle part (5) for gripping when operating the handle (4) and at least one handle base (6, 7) on which the handle part (5) is arranged, and the handle base (6, 7) is provided for coupling to a closure element (3) of the household appliance (1), wherein the handle base (6, 7) has a first base part (8, 11) which is connected to the handle part (5), and a second base part (9, 12) which is rotatably connected to the first base part (8, 11) by a rotary joint (10, 13), and a closure element opening device (26) with which the closed closure element (3) can be pressed open when the handle part (5) is operated, wherein the closure element opening device (26) has a push fork (25) which is arranged in the second base part (9, 12) is slidably mounted, and depending on the rotation of the handle part (5) with the first base part (8,11) is displaceable relative to the second base part (9, 12) from a basic position into a push-on position, wherein a return spring (32) of the closure element opening device (26), which is provided for returning the push fork (25) from the push-on position into the basic position, is arranged to encompass a fork tine (23, 24) of the push fork (25).

Description

[0001] One aspect of the invention relates to a handle for a household appliance. The handle has a handle part, which is intended for gripping by the user when the handle is operated. Furthermore, the handle has at least one handle base on which the handle part is arranged. The handle base is intended for coupling to a closure element of the household appliance, for example a door or a drawer. The handle base has a first base part, which is connected to the handle part. Furthermore, the handle base has a second base part, which is rotatably connected to the first base part by a pivot joint. Furthermore, the handle has a closure element opening device, in particular a door opening device or a drawer opening device. By means of this closure element opening device, the closure element can be automatically pushed open when the handle part is operated.The closure element opening device has a push fork that is displaceably mounted in the second base part. Depending on the rotation of the handle part with the connected first base part relative to the second base part, the push fork can be displaced from a home position into a push-open position. Another aspect of the invention relates to a closure element for a household appliance. Yet another aspect of the invention relates to a household appliance.

[0002] Household appliances with handles are known in a wide variety of designs. Handles that protrude prominently are also known, for example, with a handle bar with handle blocks. The handle blocks are usually arranged on a closure element of the household appliance so that, by operating the handle, this closure element can be moved away from the body of the household appliance, thus freeing a receiving space, such as a cooking compartment, a refrigerator compartment, or a freezer compartment.

[0003] In this context, EP 2 093 538 B1 discloses a household appliance with a handle. This handle comprises a handle bar and two handle brackets. The handle brackets are constructed in several parts, and the parts are pivotally connected to one another. A strip-shaped ejection element is built into the handle and can be automatically displaced by pivoting the handle bar with the first part of the handle bracket, thereby pushing the door open. A bearing pin for a spring is provided separately from this ejection element. The spring is in contact with the ejection element but not mounted on it.

[0004] Furthermore, US Pat. No. 7,984,955 B2 discloses a household appliance that also has a handle for opening a drawer. Here, too, a pivotably mounted bracket can be mechanically connected to a plate-shaped or strip-shaped extension element, so that the drawer can be automatically pushed open by extending this strip element when the handle is operated. Here, too, a spring is provided, which is arranged externally to the strip-shaped extension element and mounted on a support element externally to this extension element.

[0005] Furthermore, a lever handle for a household appliance is known from DE 10 2013 012 232 A1. This lever handle comprises a handle bar and connected handle brackets. These handle brackets are each constructed in several parts, and these two parts are rotatably connected to each other. A U-shaped slider is slidably mounted on the bearing part, which represents one of the two parts of a handle bracket. Separately, the handle has a return spring, which is mounted separately from the slider.

[0006] With conventional handles, the integrated and accompanying opening mechanism for the door or drawer is functionally limited. The mechanical arrangement between the geometrically very specific extension elements on the one hand and the respective very specific springs on the other can also lead to jamming and spreading, which can impair the handle's automated opening function. Furthermore, jamming can occur between the individual components, particularly with regard to the action of the spring. This also results in greater tolerances in the respective spring guides. This can also lead to a permanent impairment of the function of a spring.

[0007] It is an object of the present invention to provide a handle, a closure element for a household appliance and a household appliance in which the functionality of the handle for actuating a closure element of a household appliance is made possible in a simple and precise manner and yet a function integrated therein for pressing on the closure element is improved.

[0008] This object is achieved by a handle and a locking element as well as a household appliance according to the independent claims.

[0009] One aspect of the invention relates to a handle for a household appliance. The handle has a handle part, which is intended for gripping by the user when the handle is operated. Furthermore, the handle has at least one handle base on which the handle part is arranged. The handle base is intended for coupling to a closure element of the household appliance, for example a door or a drawer. The handle base has a first base part, which is connected to the handle part. Furthermore, the handle base has a second base part, which is rotatably connected to the first base part by a pivot joint. Furthermore, the handle has a closure element opening device, in particular a door opening device or a drawer opening device. By means of this closure element opening device, the closure element can be automatically pushed open when the handle part is operated.The closure element opening device has a push fork that is displaceably mounted in the second base part. Depending on the rotation of the handle part with the connected first base part relative to the second base part, the push fork can be displaced from a home position into a push-open position, in which the closure element can be pushed open or is already pushed open.

[0010] The locking element opening device of the handle has at least one return spring. This is designed to return the push-fork from the push-on position to the home position. The push-fork has a fork tine. The return spring is arranged so as to encompass this fork tine.

[0011] This concept provides a handle in which the closure element opening device operates precisely. The coordination between the actuation of the handle and the automatically associated movement of the push fork, as well as the subsequent return of the push fork to its home position, is thus improved. This achieves a very precise and spring-loaded movement of the push fork. The specific shape of an extension element of the closure element opening device, namely as a push fork, very advantageously allows a return spring to be arranged directly on it. The push fork itself thus serves as a bearing element for this return spring. Relative movements of the push fork to other components can then be more precise and with reduced play thanks to the return spring arranged on the push fork itself.Last but not least, this also enables a very direct transmission of force from the handle to the push fork, and advantageously supports the movement of the push fork, which is braked by the return spring and / or returned in the other direction. The gripping of a specific component of the push fork, namely the fork tine, creates a mechanical operating principle that is also improved with regard to the wear resistance of the locking element opening device. In particular, this also prevents jamming, spreading, or undesired plastic deformation of the return spring, since the moving push fork, in particular the fork tine, itself essentially forms the support element for the return spring.

[0012] The thrust fork here is a fork-shaped component with a movable mounting. It therefore features cantilevered, rod-shaped tine elements connected to a base, such as a fork socket.

[0013] In one embodiment, the return spring is, at least in part, a helical spring. The helical spring has a longitudinal spring axis. This is arranged, in particular, coaxially to the longitudinal axis of the fork tine of the reach fork. Thus, this specific configuration of the return spring as a helical spring is arranged such that it is compressible and expandable in the axial direction of the fork tine. This further improves the aforementioned advantages. Furthermore, a more compact design is also supported. The helical spring can, in particular, be a compression spring.

[0014] In one embodiment, the reach fork is U-shaped. It preferably has two fork tines. The fork tines are preferably straight. They can also be referred to as fork pins. In addition, the reach fork has a fork base. The two fork tines are connected to this fork base, in particular directly connected to it. In one embodiment, the fork base is formed separately from the fork tines. The fork tines are then connected by ends directly and firmly to the fork base. This can be advantageous if there are material differences between the fork base and the fork tine. For example, the fork base can be made of plastic. The fork tines can be made of metal, for example.

[0015] In one embodiment, a fork tine can be inserted into a receptacle in the base. It is also possible for a fork tine to be connected to the fork base with a snap connection. For this purpose, the fork tine can be partially inserted into the fork base and a snap element on one of the two parts of the push fork can be snapped into a counter-snap element that is formed on the other part of the push fork. In particular, the axial securing of the components relative to one another is further improved. This is particularly true if the return spring is arranged surrounding the fork tine, which is connected to the fork base with the snap connection. By constructing the push fork from several individual parts, the assembly of the return spring and, if necessary, other components can be carried out very easily.

[0016] Such a concept also allows the push fork to be reversibly disassembled and reassembled, at least in some areas. This can be advantageous for maintenance and assembly work. It also makes replacing individual push fork parts easier.

[0017] In one embodiment, the fork base is arranged in the second base part. It is arranged in such a way that it is located in the second base part, facing away from the handle part.

[0018] In particular, the second base part has a receptacle, which is in particular a guide channel. The forked base is arranged in this receptacle, in particular with virtually no play, so that the relative movement of the forked base in the second base part is guided with high precision.

[0019] The fork base positioned in this way is intended for direct contact with a housing part of a housing of the household appliance in the press-on position. In this context, the fork base can therefore also be referred to as a press-on stamp. The housing part can, for example, be a front flange of the housing. A seal of the closure element can also bear against this when the closure element is closed. In particular, the fork tines of this push fork are arranged in this second base part, facing the first base part. Thus, with a particularly U-shaped push fork, it is provided that the U-legs face the first base part with their free ends and the U-base formed by the fork base faces away from this first base part.It is precisely this orientation that advantageously enables the corresponding mechanical chain of action from the actuation of the handle part via the then automatically accompanying sliding movement of the push fork and the then contact of the push fork over the largest possible area, in particular via the fork base, of the housing part of the housing.

[0020] In one embodiment, the second base part has a guide channel that is at least partially closed around its circumference. The at least one fork tine is guided in this guide channel. This very advantageously enables this fork tine to be moved very linearly in the second base part. Fluttering movements or undesired tilting can thereby be particularly advantageously avoided. Especially with such a delicate pressing element as is formed by such a push fork, not only is a highly precise linear guide movement enabled, but the torsional rigidity of the push fork during actuation and during movement relative to the second base part in this second base part is also increased. This can prevent undesired deformation of this push fork. This also ensures high functionality and low wear on the push fork.This aforementioned mounting of the fork tines can be achieved precisely by the guide channel, which is completely closed along its length over at least a section in the direction of rotation of its longitudinal axis.

[0021] In one embodiment, the return spring, which surrounds the outside of this fork tine, is arranged in this guide channel. This achieves a particularly compact and functionally advantageous concept, because this elongated spring, which in particular is at least partially a coil spring or is formed entirely by a coil spring, is also advantageously guided. Compression and expansion occur relatively linearly, without any undesirable evasive movements of this spring occurring.

[0022] In one embodiment, the return spring can be designed as a helical spring only partially along its length. It is possible for the return spring to have a partial section or a partial length that is designed as a helical spring and adjoining it with a tubular sleeve. This can in particular be rigid in length and thus neither compressible nor expandable. In particular, such a return spring can also be designed as a single piece. In one embodiment, it is possible for such a return spring to also have a further, second helical part at the opposite end of the sleeve-shaped part. Such a return spring is thus only helical at the opposite ends, and a section in between is designed as a length-stable sleeve. This can also be a single-piece design.However, the return spring can also be designed entirely as a helical spring.

[0023] In one embodiment, the second base part has a second guide channel in which the second fork tine is guided. This guide channel can also be completely closed over at least a partial length in the circumferential direction around the channel's longitudinal axis.

[0024] In one embodiment, the guide channel is formed on its inside with a stop against which the return spring is supported. This stationary stop thus also forms a defined position for the return spring, from which it can compress or expand.

[0025] In one embodiment, the first base part has a reinforcement part. This is intended for mechanical reinforcement of the first base part. This also stiffens the first base part. When the handle part is rotated to actuate the closure element opening device, the reinforcement part is in mechanical contact with a free end of the at least one fork tine. This advantageously ensures that the force is transmitted very directly from the handle part to the fork tine. Undesired deformation of the base part can thus be avoided. The reinforcement part can in particular be a metal part. A base body of the first base part, on which the reinforcement part is arranged, can be made of plastic, for example. This makes it possible, on the one hand, to provide a weight-reduced first base part, which can also be produced with a very complex shape, for example, using injection molding technology.On the other hand, this reinforcement part increases the mechanical stability of the entire first base part.

[0026] In one embodiment, the pivot bearing has a first, continuous bearing pin that forms the axis of rotation. The first base part and the second base part are mounted on this bearing pin. Such a pivot bearing increases mechanical stability. A single bearing pin also reduces the number of components. Furthermore, the assembly effort at this point can be reduced. Such a one-piece, single bearing pin also prevents unwanted position changes compared to designs in which multiple bearing pins are provided on this pivot bearing. This also ensures highly precise rotation, and no unwanted tilting movements or undesirable play occur over the course of its service life. The bearing pin can be made of metal, in particular. The bearing pin can be connected to the first base part and / or the second base part in a form-fitting and / or force-fitting manner.In particular, the bearing pin can have a receptacle (e.g., a blind hole or a through-hole extending through the pin) at each of its two opposite ends, into which a pin or pin is inserted. For example, the inserted pin or pin can be inserted into the receptacle by means of a press fit, thereby expanding an outer diameter of the bearing pin at least in sections, thereby creating a force-locking connection between the bearing pin and the first base part or the second base part. The inserted pin can be made of plastic or metal, for example.

[0027] In one embodiment, the second base part forms a fitting part. With this, the handle is arranged directly on the closure element, in particular a side edge of the closure element. In one embodiment, this second base part can be U-shaped so that it can also be arranged so as to encompass the side edge of the closure element. In particular, the handle is fastened with this second base part directly to this closure element, in particular the side edge. It is possible that at least one screw connection is provided here. In particular, it can be provided that the second base part has a through-bore through which a screw of the screw connection is guided.

[0028] In one embodiment, the second base part has a reinforcing part. This is provided for the mechanical reinforcement of the second base part. As with the above-mentioned embodiment, this second base part can also have a base part made of plastic. The reinforcing part can be made of metal. The reinforcing part can be plate-shaped, i.e. have an - at least substantially - constant thickness. If a screw connection is present for fastening the second base part to the closure element, the through-bore can also extend through the reinforcing part, which is exposed in particular in sections, i.e. through a cutout. The reinforcing part can have a base section and an extension extending therefrom. The extension can extend in particular counter to the depth direction, e.g. counter to the z-direction in the figures, or protrude beyond the base section.In the vertical direction, e.g., the y-direction in the figures, the reinforcement part has a lower height in the area of ​​the extension than in the area of ​​the base section. The extension can extend beyond the base section in the depth direction by a projection of between 0.5 cm and 3 cm, in particular between 0.75 cm and 2 cm. In particular, it can be provided that the extension and the fork base overlap, at least in the basic position. This prevents undesirable deformation of the second base part in the critical area in which the fork base is movably received.

[0029] Thus, both the first base part and the second base part can each have a base body on which the respective separate reinforcement part is arranged. The base bodies can be made of plastic.

[0030] In one embodiment, the fork tine has a radially protruding bead. This can be formed completely circumferentially around the longitudinal axis of the fork tine. However, it can also be formed only partially circumferentially. It is also possible for such a bead to be formed only locally radially to the longitudinal axis of the fork tine and to be designed, for example, in a nose-like or hump-like manner. This bead forms in particular an axial stop for an additional component of the handle. This additional component is separate from the fork tine. It is also in particular separate from the return spring. The bead can have a chamfer, in particular if the bead is formed completely circumferentially. The additional component, e.g. a sleeve, can also have a chamfer, in particular an inward-facing chamfer. The chamfer of the additional component can correspond to the chamfer of the bead, i.e. the bevel angles of the chamfers of the bead and the additional component are identical.The additional component can be mounted on the fork tine or pushed over it in such a way that the surfaces of the two bevels contact each other and thus ensure optimal force transmission between the two components.

[0031] The bead essentially enables stable and precise mounting of an additional component on this fork tine. This ensures precise axial positioning and, if necessary, precise relative mobility to the fork tine. In particular, it also allows the return spring to be in direct contact with the additional component, particularly by being arranged directly adjacent to it in the axial direction. The additional component then advantageously enables the return spring to be guided more effectively, allowing it to be compressed and expanded more precisely. This also prevents unwanted slipping over the bead.

[0032] In one embodiment, the closure element opening device comprises an additional component, in particular at least one annular sleeve. This annular sleeve is arranged so as to encompass the separate fork tines circumferentially. This additional component is arranged on the fork tines so as to be displaceable relative to the fork tines in the axial direction. The return spring rests on this additional component with one end, in particular the end facing the first base part. This additional component can thus also be referred to as a captive element and / or anti-slip element, in particular for the return spring.

[0033] A further aspect of the invention relates to a closure element for a household appliance. The closure element comprises a handle according to the above-mentioned aspect or an advantageous embodiment thereof. The closure element preferably also comprises a plate-shaped part on which the handle is arranged. The closure element can be, for example, a door or a drawer of the household appliance.

[0034] A further aspect of the invention relates to a household appliance with a handle according to the above-mentioned aspect or an advantageous embodiment thereof. In particular, the household appliance has a closure element according to the above-mentioned aspect or an advantageous embodiment thereof. The household appliance can have a housing. The closure element is arranged on this housing and mounted thereon so as to be movable relative to the housing. The housing has at least one receiving space. In a household appliance for preparing food, such as a cooking appliance, this receiving space can be, for example, a cooking chamber. In a household appliance for storing and preserving food, such as a refrigerator or a freezer or a refrigerator-freezer combination appliance, a receiving space can be a refrigerator compartment or a freezer compartment.

[0035] Embodiments of the invention are explained in more detail below with reference to schematic drawings. They show: Fig. 1 shows a perspective view of an embodiment of a household appliance according to the invention with an embodiment of a closure element according to the invention and an embodiment of a handle according to the invention; Fig. 2 shows a perspective view of an embodiment of a handle according to the invention; Fig. 3 shows a partial view of the household appliance according to Fig. 1 , in which the mounted state of the handle on the closure element is shown; Fig. 4 a partially exploded view of the handle according to Fig. 2 ; Fig. 5 a perspective sectional view of a portion of the handle according to Fig. 2 ; Fig. 6 a perspective and transparent representation of a handle part and a first base part of the handle according to Fig. 5 ; Fig. 7 a perspective view of subcomponents of the handle according to Fig. 2 and Fig. 5 ; Fig. 8 a sectional view through partial components of the handle according to Fig. 2 and Fig. 5 in a basic position of the handle or a handle part; Fig. 9 an exploded view of subcomponents of a closure element opening device of the handle; Fig. 10 a representation of an embodiment of a push fork of the closure element opening device with additional components of the closure element opening device; Fig. 11 an exploded view of the components in Fig. 10 and the additional representation of a second base part of a handle base of the handle according to Fig. 2 and Fig. 5 ; Fig. 12 two sectional views of partial components of the handle, on the one hand in a basic position and on the other hand in a pressing position; Fig. 13 the perspective view of the components according to Fig. 11 in the assembled state; Fig. 14 a transparent representation of the component arrangement in Fig. 13 in a different perspective; Fig. 15 shows a sectional view through subcomponents of a second embodiment; Fig. 16 shows a further sectional view through components of the second embodiment, and Fig. 17 shows an exploded view of subcomponents of the second embodiment.

[0036] In the figures, identical or functionally identical elements are provided with the same reference symbols.

[0037] In Fig. 1 A schematic representation of an embodiment of a household appliance 1 is shown. The household appliance 1 is designed, for example, for storing and preserving food and can be a refrigerator, a freezer, or a refrigerator-freezer combination appliance. The household appliance 1 has a body or a housing 2. At least one receiving space for food is formed in the housing 2. The receiving space can be a refrigerator compartment or a freezer compartment.

[0038] Furthermore, the household appliance 1 has a closure element 3. This closure element is intended for closing the aforementioned receiving space. The closure element 3 can be a door or a drawer. In the exemplary embodiment, it is a door. This door is pivotably mounted on the housing 2.

[0039] In addition, Fig. 1 a schematic representation of an embodiment of a handle 4 is shown. The handle 4 is intended for actuating the closure element 3. The handle 4 is arranged on this closure element 3. In the embodiment, the handle 4 has a handle part 5. This can be a handle bar, for example. The handle part 5 is intended to be directly gripped by a user when actuating the handle 4. In addition, the handle 4 has a first handle base 6 and a second handle base 7. The handle part 5 is connected to these two handle bases 6 and 7, which can also be referred to as handle blocks. By means of these handle bases 6 and 7, the handle 4 in the embodiment is attached directly to the closure element 3.

[0040] In Fig. 2 An enlarged view of an embodiment of the handle 4 is shown. The handle base 6 has a first base part 8 and a separate second base part 9. The two base parts 8 and 9 are connected to one another by a pivot joint 10. This allows these two base parts 8 and 9 to move relative to one another. The handle base 7 also has a first base part 11 and a second base part 12. These two base parts 11 and 12 are also connected by a pivot joint 13. The axes of rotation, in particular coaxial, of these pivot joints 10 and 13 are oriented in the height direction (y-direction).

[0041] The handle 4 is attached to the closure element 3 by means of the second base parts 9 and 12. In particular, an attachment to a side edge 3a is provided here. For this purpose, in one embodiment, these base parts 9 and 12, as shown in Fig. 2 As can be seen, they are U-shaped. Thus, they encompass this side edge 3a. In particular, the handle 4 can be attached to the closure element 3 by means of screw connections. In particular, the second base parts 9 and 12 are screwed to the side edge 3a for this purpose.

[0042] In Fig. 3 An enlarged section of the household appliance 1 is shown, showing the attached state of the handle 4 to the closure element 3. A screw connection 14 is shown. The second base part 12, which encompasses the side edge 3a both at the front and at the rear, can also be seen.

[0043] In Fig. 4 the handle 4 is in a Fig. 2 shown from different perspectives. Furthermore, the two second base parts 9 and 12 are shown separately from the first base parts 8 and 11. The pivot joints 10 and 13 each have a one-piece bearing pin 15 and 16. Thus, the base parts 8 and 9 are connected to each other only by means of this single bearing pin 15 to create the relative rotational mobility of these components. The same applies to the base parts 11 and 12.

[0044] In Fig. 5 A perspective sectional view of a portion of the handle 4 is shown. This is a horizontal sectional view, i.e. a section through the width direction (x-direction) and the depth direction (opposite the z-direction) through the first handle base 6. Just as in Fig. 2 is also in Fig. 5 The basic position of the handle 4 is shown. This means that the handle part 5, with the first base parts 8 and 11 fixedly arranged thereon, is arranged in the non-pivoted state relative to the second base parts 9 and 12. As can also be seen, the first base part 8 has a groove-shaped receptacle 17 into which a head-like region 18 of the second base part 9 engages. The concave and convex outer surfaces are formed complementarily to one another, so that the pivoting movement of the base parts 8 and 9 relative to one another is also guided accordingly and is precise.

[0045] In Fig. 6 A transparent representation of a portion of the handle part 5 and the first base part 8 is shown. A base body 19 of the first base part 8 is made of plastic. In this exemplary embodiment, the first base part 8 additionally has a reinforcing part 20. This is, in particular, a metal part. This reinforcing part 20 extends essentially over the entire length of the first base part 8. It is, in particular, formed internally in the base body 19. For example, it can be overmolded with the plastic of the base body 18.

[0046] The reinforcement part 20 comprises a sub-element 21. This has two U-shaped and V-shaped legs 21a and 21b, respectively. These are arranged vertically spaced from one another and, when viewed in projection in the direction of the rotation axis, are positioned congruently with one another. These two legs 21a and 21b are connected by a connecting leg 21c. The shape of this sub-element 21 is adapted to the outer contour of the base body 19 in this upper and lower region. This particularly stiffens these wings of the base body 19. Fig. 6 an axle hole 22 is also shown through which the bearing pin 15 is passed.

[0047] As already mentioned in the presentations in Fig. 2 and Fig. 5 as well as to Fig. 4 As can be seen, the handle part 5 is separate from the first base parts 8 and 11. In particular, this rod-like and straight handle part 5 can be hollow at least in some areas, for example at opposite ends. Thus, the first base parts 8 and 11 can be sunk into this handle part 5 at least in some areas, as shown in Fig. 2 and Fig. 4 can be seen.

[0048] The handle part 5 can be made of plastic or metal.

[0049] In Fig. 7 In a further perspective view, a portion of a handle 4 is shown. This is the component arrangement as shown in Fig. 6 is shown. In addition, the bearing pin 15 is inserted into the axle hole 22. Furthermore, it can be seen that two fork tines 23 and 24, which are components of a push fork 25, are mechanically contacted at very specific local points of the first base part 8. Preferably, it is provided that the base body 19, as is also shown in Fig. 6 shown, has two receptacles, in particular holes 19a and 19b. Thus, the reinforcement part 20 is exposed at these holes 19a and 19b. Thus, in one embodiment, the front, freely projecting ends of these fork tines 23 and 24 directly contact this reinforcement part 20. However, it is also possible for these receptacles 19a, 19b to be blind holes rather than through holes. Thus, the reinforcement part 20 is not directly exposed at these receptacles 19a and 19b.

[0050] The aforementioned forks 23 and 24 are part of a closure element opening device 26. In particular, this closure element opening device 26 is a door opening device. The closure element opening device 26 is thus integrated into the handle 4. When the handle 4 is actuated, in particular when the handle part 5 is pivoted with the first base parts 8 and 11, the push fork 25 is automatically acted upon, so that it is displaced in a specific direction and the closure element 3, here in particular the door 4, is then automatically pushed open.

[0051] In Fig. 8 A vertical sectional view of partial components of the handle 4 is shown. This shows a sectional view through the second base part 9 and a portion of the first base part 8. The basic position of the handle 4 is shown here.

[0052] The already mentioned push fork 25, which is U-shaped here and has only these two separate fork tines 23 and 24 and no further fork tines, also comprises a fork base 27.

[0053] As can be seen, the push fork 25 is housed internally in the second base part 9. In the exemplary embodiment, the two fork tines 23 and 24 are separate parts from the fork base 27. The second fork tine 24 is inserted, in particular plugged, into the fork base 27. The first fork tine 23 is also inserted, in particular plugged, into the fork base 27 and additionally connected to it by a snap connection 28.

[0054] As can also be seen, the second base part 9 has a guide channel 29 for the fork base 27. This guide channel 29 is open to the rear in the depth direction (opposite the z-direction). This allows the fork base 27 to be removed from its Fig. 8 shown basic position, in which it is essentially completely retracted or sunk into this guide channel 29, can be extended backwards. This fork base 27 is also the extension part, which is then brought into direct contact with a housing part of the housing 2, in particular a front flange of the housing 2, in order to press open the locking element 3 when the handle 4 is actuated.

[0055] In addition, Fig. 8 It can also be seen that the first fork tine 23 is guided in a first guide channel 30 in the second base part 9. This first guide channel 30 is completely closed in the circumferential direction around its longitudinal axis, at least over a partial axial length. In particular, the guide channel 30 is therefore formed as a circumferentially closed tube, at least over a partial length.

[0056] In one exemplary embodiment, the second fork tine 24 is guided in a second guide channel 31. This second guide channel 31 is also integrated into the second base part 9. This guide channel 31 is also preferably completely closed in the circumferential direction around its longitudinal axis, in particular at least over a partial axial length.

[0057] The fork tine 23 has a longitudinal axis A. As further shown in Fig. 8 As can be seen, the closure element opening device 26 also has a return spring 32. The return spring 32 is shorter than the fork tine 23. The fork tine 23 extends longer on both sides than the return spring 32. The return spring 32 is arranged with its spring axis coaxial with the longitudinal axis A. In particular, the return spring 32 surrounds the first fork tine 23 all the way around. The return spring 32 can be designed as a helical spring, at least over a partial axial length, which is wound around the fork tine 23. In the exemplary embodiment, it is provided that the return spring 32, as shown in the exploded view in Fig. 9 shown, has a front section which is designed as a helical spring 32a. In addition, the return spring 32 has a rear section, which here is also designed as a helical spring 32c. In the exemplary embodiment, the return spring 32 has a central part 32b. This is not compressible and expandable in the direction of the spring's longitudinal axis, as are the helical springs 32a, 32c, but rather this central part 32b is longitudinally rigid in this regard. In particular, this central part 32b can be a tube. Alternatively, the return spring 32 can be designed entirely as a helical spring, in particular as a compression spring.

[0058] As in Fig. 8 As can be seen, this return spring 32 is also arranged in this first guide channel 30. For the defined positioning of the return spring 32, the first guide channel 30 has a stop 33. Thus, the stop 33 forms a radial constriction against which the return spring 32 is supported in the exemplary embodiment, here in particular with the rear section 32b.

[0059] Furthermore, one exemplary embodiment provides for the first fork tine 23 to have a bead 34 projecting radially from its casing wall. This bead 34 is only locally formed here and is formed by two elevations, in particular lugs. However, the bead 34 can also be formed to extend completely around the longitudinal axis A in the circumferential direction.

[0060] Preferably, the closure element opening device 26 has an additional component 35. This additional component 35 can, in one embodiment, be at least one annular sleeve. In the embodiment, two annular sleeves 35a and 35b are provided. They encompass the fork tine 23 circumferentially. As described in this regard in Fig. 8 As can be seen, the return spring 32 rests with its front end, in particular the helical spring 32a, against the annular sleeve 35b. This annular sleeve 35b, in turn, rests against the further annular sleeve 35a. This further annular sleeve 35a is supported in the axial direction on the bead 34. The annular sleeve 35b can be made of plastic. This annular sleeve 35b preferably has an outer diameter such that it can be displaced in the first guide channel 30 essentially without radial play. The plastic design provides better contact with the second base part 9, especially if this is also made of plastic. This results in better sliding properties and less wear. The further annular sleeve 35a can be made of metal. Its outer diameter can be smaller than the annular sleeve 35b. The further annular sleeve 35a then has no contact with the inner wall of the first guide channel 30.

[0061] It is also possible that the further ring sleeve 35a is a component of the bead 34 and is thus formed integrally therewith and is arranged in a fixed position on the fork tine 23.

[0062] In the exemplary embodiment, only one such return spring 32 is provided, in particular in coupling with the first fork tine 23. However, it is also possible that the corresponding construction with the return spring 32 and in particular also the additional component 35 is provided in addition to or instead of the second fork tine 24.

[0063] As furthermore in Fig. 9 As can also be seen, the first fork tine 23 has a radial constriction 36. This constriction 36 is an embodiment of a snap element. A counter-snap element 37 ( Fig. 8 ), which is integrated into the fork base 27.

[0064] In Fig. 10 A perspective view of the assembled state of the push fork 25 is shown. Here, it is U-shaped. In this context, the two straight and parallel fork tines 23 and 24 form the cantilevered U-shaped legs, and the fork base 27 forms the connecting U-shaped base leg.

[0065] In Fig. 11 is an exploded view of the subcomponents of the second base part 9, as shown in the sectional view in Fig. 8 are shown.

[0066] In Fig. 12 is shown in a sectional view as shown in Fig. 8 a part of the view in Fig. 8 Only the area with the fork tine 23 is shown here. In the lower image in Fig. 12 the corresponding representation is as in the picture above in Fig. 12 shown, however, there the push-on position of the closure element opening device 26 is shown. As can be seen here, the fork base 27 is pushed out of the guide channel 29 to the rear. This is done in such a way that by pivoting the handle part 5 with the first base parts 8 and 12 about the axis of rotation, which is fixed and is formed by the bearing pin 22, the partial area with the openings 19a, 19b pivots in the direction of the second base part 9. In this respect, the first base part 8 thus dips into a receptacle 38 ( Fig. 11 and Fig. 13 ) of the second base part 9, and by directly acting on the front free ends of the fork tines 23 and 24, the push fork 25 as a whole is displaced linearly relative thereto in the second base part 9, in particular backwards in the depth direction. Due to the dimensionally stable coupling of the fork tines 23 and 24 with the fork base 27, the entire push fork 25 is thereby displaced. As a result of this movement from the basic position to the push-on position, the return spring 32 is compressed and thus pre-tensioned or even more pre-tensioned compared to the basic position. If the handle part 5 is then moved back into the basic position after this actuation of the handle 4, the push fork 25 is also automatically pushed back into the basic position, in particular here also linearly, by the pre-tensioned return spring 32.

[0067] In Fig. 13 The assembled state of the second base part 9 with the internal push fork 25 is shown in a perspective view.

[0068] In Fig. 14 An exemplary embodiment of the second base part 9 is shown in a transparent perspective view. It can also be seen here that this second base part 9 can also have a reinforcing element 39 in one exemplary embodiment.

[0069] This reinforcing element 39 can be made of metal. A base body 40 of this second base part 9 can be made of plastic.

[0070] The explanations for handle base 6 apply accordingly to handle base 7.

[0071] In Fig. 15 shows a sectional view through subcomponents of a second exemplary embodiment. This is a vertical sectional view of the handle 4. It shows a sectional view through the second base part 9 and a portion of the first base part 8. The basic position of the handle 4 is shown here.

[0072] In the following, the Fig. 15, 16 and 17 only the differences from the first embodiment are explained. Otherwise, the second embodiment corresponds to the first embodiment.

[0073] The swivel joint 10 has a continuous bearing pin 15. The bearing pin 15 is made of metal and has a receptacle 41 at each of its two opposite ends. A pin or pin 42 made of plastic is inserted into each receptacle 41. Each pin 42 has an elongated base section 52 and a head section 53 which, when assembled, points outwards. In this exemplary embodiment, the base section 52 has four ribs which point radially outwards with respect to a longitudinal axis of the pin 42 and which extend along the longitudinal axis of the pin 42 over the entire length of the base section 52. The base section 52 is fully positioned in the receptacle 41. The head section 53 protrudes radially beyond the base section 52 and has a plate-like shape. The head section 53 is fully received in a head receptacle 54 in the second base part 9.

[0074] The head section 53 and the head receptacle 54 are matched to one another in such a way that a positive connection is present.

[0075] The outer diameter of the base section 52 (corresponding to the maximum extension in the radial direction) is matched to the inner diameter of the receptacle 41 in such a way that a positive and non-positive connection is present.

[0076] The outer diameter of the bearing pin 15 is - before inserting the two pins 42 - slightly smaller than the inner diameter of the axle hole 22(s). This enables uncomplicated insertion of the bearing pin 15. As soon as it is fully inserted, the two pins 42 can be pressed into the respective receptacles 41. This widens the outer diameter of the bearing pin 15 in the area of ​​its two axial end sections 43. The bearing pin 15 is thus fixed in the axle holes 22 in a form-fitting and force-fitting manner, enabling a reliable and captive connection, especially over a longer period of use.

[0077] The reinforcement part 39 of the second base part 9 is covered over a large area by the second base part 9. In particular, more than 80% of the surface of the reinforcement part 39 is covered by the second base part 9. In particular, the metallic reinforcement part 39 is overmolded by the second base part 9, i.e., embedded in the second base part 9, which is made of plastic, by means of an injection molding process. However, a cutout 44 in the second base part 9 exposes the reinforcement part 39 in sections. In particular, a section of the reinforcement part 39 is exposed, which section has a through-bore 45. The through-bore 45 serves to fasten the second base part 9 to the closure element by means of a fastening means (e.g., a screw), as also shown in the first exemplary embodiment.

[0078] Fig. 16 shows a further sectional view through components of the second embodiment, which runs through the center axes of the fork tines 23, 24 which are rotationally symmetrical in the second embodiment.

[0079] In contrast to the first embodiment (compare corresponding illustration in Fig. 8 ), the reinforcement part 39 has a base section 46 and an adjoining extension 47. The extension 47 extends in the depth direction (opposite the z-direction) and has a projection 48 of approximately 1 cm relative to the base section 46. The extension 47 is formed centrally on the base section 46 in the y-direction. The extension 47 results in an overlap 49 in the depth direction between the reinforcement part 39 and the fork base 27. This overlap 49 significantly increases the torsional rigidity of the second base part 9 in the area in which the fork base 27 is received. This enables more precise and more reliable function over the service life.

[0080] As in the exploded view of subcomponents of the second embodiment in Fig. 17As shown, only one annular sleeve 35c is arranged on the fork tine 23 and is pushed onto it. The annular sleeve 35c has an inwardly directed chamfer 50 at one end. No chamfer is formed at the other end of the annular sleeve 35c, so that a flat circular ring surface is formed for the contact of the coil spring 32d. The fork tine 23 has a bead 34 which is rotationally symmetrical on the fork tine 23, i.e. is formed completely circumferentially around the longitudinal axis of the fork tine 23. The bead 34 has a chamfer 51, wherein a bevel angle of the two chamfers 50, 51 is identical, so that there is surface contact between the two chamfers 50, 51 and optimal force transmission takes place. List of reference symbols

[0081] 1 Household appliance 2 Housing 3 Locking element 3a Side edge 4 Handle 5 Handle part 6 Handle base 7 Handle base 8 Base part 9 Base part 10 Swivel joint 11 Base part 12 Base part 13 Swivel joint 14 Screw connection 15 Bearing bolt 16 Bearing bolt 17 Receptacle 18 Base body 19 Base body 19a Hole 19b Hole 20 Reinforcing element 21 Partial element 21a Leg 21b Leg 21c Connecting leg 22 Axle hole 23 Fork tines 24 Fork tines 25 Push fork 26 Locking element opening device 27 Fork base 28 Snap connection 29 Guide channel 30 Guide channel 31 Guide channel 32 Return spring 32a Coil spring 32bMiddle section 32cCoil spring 32dCoil spring 33Stop 34Bead 35Additional component 35aRing sleeve 35bRing sleeve 35cRing sleeve 36Constriction 37Counter snap element 38Receptacle 39Reinforcing element 40Base body 41Receptacle 42Bolt 43End section 44Cutout 45Through hole 46Base section 47Extension 48Protrusion 49Overlap 50Bevel 51Bevel 52Base section 53Head section 54Head receptacle

Claims

1. A handle (4) for a household appliance (1), comprising a handle part (5) for gripping when the handle (4) is actuated, and at least one handle base (6, 7) on which the handle part (5) is arranged, and the handle base (6, 7) is provided for coupling to a closure element (3) of the household appliance (1), wherein the handle base (6, 7) has a first base part (8, 11) connected to the handle part (5), and a second base part (9, 12) rotatably connected to the first base part (8, 11) by a pivot joint (10, 13), and a closure element opening device (26) with which the closed closure element (3) can be pressed open when the handle part (5) is actuated, wherein the closure element opening device (26) has a push fork (25) which is arranged in the second base part (9, 12). is displaceably mounted, and depending on the rotation of the handle part (5) with the first base part (8, 11) connected thereto relative to the second base part (9,12) is displaceable from a basic position into a push-on position, wherein a return spring (32) of the closure element opening device (26), which is provided for returning the push fork (25) from the push-on position into the basic position, is arranged to encompass a fork tine (23, 24) of the push fork (25).

2. Handle (4) according to claim 1, wherein the return spring (32) is at least partially a helical spring (32a, 32c, 32d) which is arranged with its spring longitudinal axis coaxial with the longitudinal axis (A) of the fork tine (23, 24).

3. Handle (4) according to claim 1 or 2, wherein the, in particular U-shaped, push fork (25) has at least two pin-like, in particular straight, fork tines (23, 24), and the push fork (25) has a fork base (27) which is in particular formed separately from the fork tines (23, 24), and the fork tines (23, 24) are connected by ends directly and fixedly to the fork base (27).

4. Handle (4) according to claim 3, wherein the fork base (27) is arranged in the second base part (9, 12) facing away from the handle part (5) and is provided in the press-on position for directly contacting a housing part of a housing (2) of the household appliance (1), and the fork tines (23, 24) are arranged in the second base part (9, 12) with free ends facing the first base part (8, 11).

5. Handle (4) according to one of the preceding claims, wherein the second base part (9, 12) has a guide channel (30, 31) which is completely closed on the circumference at least over a partial axial length and in which the fork tine (23, 24) is guided.

6. Handle (4) according to claim 5, wherein the guide channel (30, 31) has on its inner side a stop (33) on which the return spring (32) is supported.

7. Handle (4) according to one of the preceding claims, wherein the first base part (8, 11) has a reinforcing part (20) for mechanical reinforcement, which is in contact with a free end of the at least one fork tine (23, 24) when the handle part (5) is rotated to actuate the closure element opening device (26).

8. Handle (4) according to one of the preceding claims, wherein the pivot bearing (10, 13) has a single and continuous bearing pin (15, 16) which forms the axis of rotation, wherein the first base part (8, 11) and the second base part (9, 12) are mounted on this bearing pin (15, 16).

9. Handle (4) according to one of the preceding claims, wherein the second base part (8, 11) forms a fitting part with which the handle (4) can be fastened directly to the closure element (3), in particular encompassing a side edge (3a) of the closure element (3).

10. Handle (4) according to one of the preceding claims, wherein the second base part (9, 12) has a reinforcing part (39) for mechanical reinforcement.

11. Handle (4) according to one of the preceding claims, wherein the first base part (8, 11) has a base body (19) made of plastic and / or the second base part (9, 12) has a base body (40) made of plastic.

12. Handle (4) according to one of the preceding claims, wherein the fork tine (23, 24) has a radially projecting bead (34) which forms an axial stop for an additional component (35) of the handle (4).

13. Handle (4) according to one of the preceding claims, wherein the closure element opening device (26) has an additional component (35), in particular at least one annular sleeve (35a, 35b, 35c), which engages around the separate fork tine (23, 24) and which is arranged to be axially displaceable on the fork tine (23, 24), wherein the return spring (32) is supported with one end, in particular an end facing the first base part (8, 11), on the additional component (35).

14. Closure element (3) for a household appliance (1), with a handle (4) according to one of the preceding claims.

15. Household appliance (1) with a housing (2) and a closure element (3) arranged on the housing (2) and movable relative to the housing according to claim 14.

Images