EP3175764A1 - Dish rack, in particular cutlery drawer - Google Patents

Abstract

The invention relates to a crockery basket, in particular cutlery drawer, for a dishwasher, with a support frame (2) and an insert for receiving crockery, in particular cutlery, and a functional element (22) arranged on the support frame, wherein the support frame (2) is made Plastic consists and is designed as an injection molded part, wherein the functional element (22) by encapsulation in the plastic of the support frame (2) is at least partially embedded.

Description

The invention relates to a crockery basket, in particular in the embodiment as a cutlery drawer, for a dishwasher, with a support frame and an insert carried by it, which serves to accommodate dishes, especially cutlery.

Baskets in general and cutlery drawers in particular are known per se from the prior art. It is therefore only an example of the DE 10 2008 026 761 B3 referenced, which discloses a crockery basket of the generic type.

The according to the DE 10 2008 026 761 B3 Previously known cutlery drawer has a support frame made of a plastic-coated wire. In order to ensure a sufficient stability of the support frame, the support frame in the construction of a truss-like structure. For the actual inclusion of dishes, in particular cutlery is used by a support frame held use. This is made of plastic and consists for example of polypropylene or polyoxymethylene.

The from the DE 10 2008 026 761 B3 known construction has proven itself everyday practical use. There is nevertheless room for improvement. Thus, the manufacturer-side freedom of design due to the combination of plastic inserts on the one hand and wire support frame on the other hand limited, in particular with regard to possible functional integrations, so that additional attachments are required for the provision of additional functions, which makes the whole production expensive and expensive. For example, for the arrangement of required for a later arrival and / or extension of the crockery casters on the crockery basket corresponding attachment parts are required, which are typically bolted or welded to the wire support frame. The installation of such attachments is relatively expensive and there is also the disadvantage of a high soiling tendency, as supernatants, columns and the like. Cavities and undercuts between such an attachment and the wire support frame can not be avoided due to design.

It is therefore based on the above-described the object of the invention, a To provide a crockery basket that allows for increased functional integration.

To solve this problem, a dish rack of the type mentioned is proposed with the invention, which is characterized in that the support frame is made of plastic and is designed as an injection molded part, wherein the functional element is at least partially embedded by encapsulation in the plastic of the support frame.

In contrast to the previously known construction according to the DE 10 2008 026 761 B3 is proposed with the invention, a support frame, which does not consist of a plastic-coated wire mesh, but completely made of plastic and is designed as an injection molded part. As a result of this, a higher functional integration is possible due to the manufacturing process, since the restriction given to that extent in the case of a combination of a support frame made of wire and inserts made of plastic is no longer present. Instead, the support frame provided as an injection-molded part can, due to its production, be adapted to a plurality of desirable functionalities, without requiring additional attachments for this purpose. Thus, it is particularly possible to provide an optimized with a view to the subsequent use geometry of the support frame, which is not possible in a support frame formed from a wire mesh in this form.

According to the invention it is further provided that a functional element arranged on the support frame is embedded at least in sections by encapsulation in the plastic of the support frame. Advantageously, the functional integration is thus increased compared to conventional crockery basket designs. The integration of a functional element according to the invention into the plastic of the support frame designed as an injection-molded part makes it possible to dispense with corresponding add-on parts, as are used according to the prior art. This provides both advantages in the production and the assembly as well as a significantly reduced soiling tendency.

Overall, a crockery basket is thus proposed which, while improving the functional integration, allows simplified production and assembly and also offers a reduced susceptibility to contamination on the user side.

The support frame consists of a first material and the functional component consists of a different material from the first material. The second material in particular has a significantly higher modulus of elasticity and / or a substantially greater hardness than the first material. The functional component can be formed from a fiber composite plastic. Preferably, however, the functional component is made of stainless steel.

According to a particular feature of the invention can be used as a functional element such that has a pin portion which serves to receive a roller. Such a functional element therefore serves as an integral part of the support frame to receive a roller in the later use case, which allows a movable arrangement of the dish rack in the associated washing compartment of a dishwasher. The preferably made of stainless steel functional element has for this purpose a bolt portion which serves as an axis for the male from the bolt portion role.

The roller is latched onto the bolt portion according to a further feature of the invention. This allows easy assembly or disassembly in case of repair. For this reason, it is provided that the bolt portion has a cooperating with a locking means of the roller latching contour. This latching contour may be, for example, a circumferential groove into which a latching hook of the roller acting as a latching means snaps, as soon as the roller is placed in the intended manner on the bolt portion of the functional element.

In addition to the above-described functional element, other functional elements can be provided which are arranged in accordance with the invention on the support frame, i. are at least partially embedded in the plastic material of the support frame by molding.

In order to give the support frame a sufficient rigidity and strength, in particular against bending and torsional stresses, according to a further feature of the invention, an embedded by encapsulation in the plastic of the support frame wire reinforcement is provided.

The use of wire to reinforce formed from plastic support frame is made not unknown in the prior art. According to the previously known construction, however, it is provided that the supporting frame profile of a cutlery drawer is partially formed semi-open and that in the thus created channels wire rods are used. Disadvantage of this embodiment, however, is the high soiling tendency, since store dirt particles in the half-open channels. The same disadvantage arises when, instead of an inserted wire rod, a plastic ribbing formed integrally with the frame profile is provided to increase the rigidity.

In contrast to this prior art construction is provided with the invention that the wire reinforcement is completely embedded by encapsulation in the plastic of the support frame. This results in two main advantages. On the one hand, the wire material is completely protected from corrosive attacks by integration into the plastic material. On the other hand, the soiling tendency is minimized, as is completely dispensed with externally accessible cavities, channels and / or the like. Recesses for receiving wire rods, which are typical attachment points for dirt particles avoided.

The embedded according to the invention in the plastic material of the support frame functional elements on the one hand and also embedded in the plastic material of the support frame wire reinforcement on the other hand cooperate synergistically in an advantageous manner. Thus, the embedded in the support frame wire reinforcement causes sufficient rigidity and stability of the support frame especially against torsional and bending stresses, so that embedded in the support frame functional elements can also be those that transmit forces in the support frame. Thus, the use of such functional elements is permitted for the first time with the construction according to the invention. From the prior art previously known constructions did not allow such a functional element integration for lack of carrying capacity. Therefore, according to the state of the art, functional elements were used as attachments, which is disadvantageous both on the manufacturer side due to the manufacturing costs and on the user side due to the handling. On the other hand, the invention provided for integration of functional elements in the support frame that can be dispensed with corresponding previously used from the prior art add-on parts, which in turn makes it possible to form a support frame construction based on an injection molded part, which in turn requires that the manufacturer greater freedom in terms of geometric contouring is given, so that an optimized design is also allowed.

The embedded wire reinforcement according to the invention has a U-shaped wire bracket. This wire bracket extends along three sides of the support frame. This provides in an advantageous manner, in contrast to a wire rod an additional stiffening and thus increase in strength against torsional stresses. The crockery basket according to the invention is thus in contrast to all previously known embodiments much more torsionally rigid, which makes it possible to design the support frame filigree overall, without having to accept a rigidity and / or strength disadvantage as a result. The U-shaped design of the support bracket not only increases the torsional rigidity, but also improves the flexural strength, so that an overall improved rigidity of the support frame is provided.

As will be shown below, the construction of the invention is particularly suitable in combination with movably arranged on the support frame inserts, as the support frame according to the invention as such already provides sufficient rigidity or strength that it does not continue on the support frame held on the inserts as stiffening arrives. The support frame construction according to the invention thus makes it possible to design the inserts which are movably arranged on the support frame in their degrees of freedom variable, which advantageously increases the adjustment possibilities on the part of the user.

It is provided according to a further feature of the invention that the wire reinforcement has a second U-shaped wire bracket, wherein the two wire brackets with their respective open side face each other.

There are according to this feature of the invention, two U-shaped wire hanger used. These face each other with their respective open side, so that a symmetrical overall structure is realized.

It is preferred that a wire bow has a base portion as well as two angle portions each extending preferably at an angle of 90 ° from the base portion.

The base portion of a wireframe preferably extends in the extension direction of a cutlery drawer intended for use, i. in the longitudinal direction of the cutlery drawer. The end sections of the wire bracket that extend at one end and at the other end from the base section, however, run in the transverse sides of the support frame, i. with respect to the extension direction of a crockery basket in each case in the front and rear side of the support frame. Thus, in the preferred use of two wire brackets, the angular portions of the wire hoops equally extend along both the front and rear sides of the support frame and the respective base portions are parallel to each other along the opposite longitudinal sides of the support frame.

The support frame encloses according to a further feature of the invention, a reinforcing frame, wherein the support frame and the reinforcing frame are integrally formed. The support frame and the reinforcing frame thus form an integrally formed injection molded part, in which the above-described wire reinforcement is embedded according to the invention. It can be provided according to a particular feature of the invention, that the reinforcing frame extends in a plane below the support frame, so that set different heights with respect to any of the support frame and / or the reinforcing frame recorded inserts, allowing the user side, different sized dishes in the To arrange a dish rack.

The reinforcing frame preferably has a wire reinforcement embedded in the plastic of the reinforcing frame by overmolding. This wire reinforcement has two U-shaped wire bracket, which lie opposite each other with their respective open sides. Accordingly, the reinforcing frame has a corresponding wire reinforcement corresponding to the wire reinforcement of the support frame, thus further increasing the overall rigidity and strength of the crockery basket.

It is provided according to a further feature of the invention that the insert carried by the support frame is movably disposed on the support frame. On the user side, it is thus allowed to move the insert in relation to the support frame and to transfer from a use position to a non-use position and vice versa. The movable arrangement of the insert on the support frame provides the advantage of an increased adjustment, which allows the user side, the Depending on the desired load condition, adjust the dish rack as part of its adjustment options.

It is provided according to a further feature of the invention, that the insert is made of plastic and is formed as an injection molded part and embedded by encapsulation in the plastic of the insert wire reinforcement which provides two U-shaped wire bracket provides that with their respective open sides facing each other. A trained in such a use is particularly stable thanks to its inherent rigidity and strength, can therefore also accommodate heavy dishes items. Furthermore, it is independent of the support frame formed in terms of its stability, which allows it in combination with a rigid and solid support frame to provide a decoupling of support frame on the one hand and use on the other hand, whereby the adjustment of the insert relative to the support frame are increased.

It is provided according to a further feature of the invention, a further insert which is locked to the reinforcing frame. The second insert is therefore not arranged relatively movable relative to the support frame in contrast to the first use. However, due to its engagement with the reinforcement frame, it is not necessary to equip the second insert with a wire reinforcement. By its engagement with the reinforcing frame, the sufficient stability and strength is given.

According to a further feature of the invention, a third insert is provided, which is formed in the same way as the first insert and which is also arranged movably on the support frame. The third insert also has an embedded by injection into the plastic of the third use wire reinforcement. This also has two U-shaped wire bow, which lie opposite each other with their respective open sides.

Overall, the support frame thus has three inserts, wherein the first and the third insert are movably arranged on the support frame, whereas the second insert is locked to the reinforcing frame of the support frame, the second insert is therefore not movable in relation to the support frame.

• Verbesserung des Erscheinungsbildes durch den Entfall eines konventionell verschweißten beschichteten Drahtrahmens durch Einsatz eines gestaltungsoptimierten Kunststoffrahmens unter Berücksichtigung einer verringerten Anschmutzungsneigung;
• Verbesserung der Griffhaptik;
• Verbesserung der Flexibilität durch Integration zusätzlicher Feststellfunktionalitäten der vom Tragrahmen gehaltenen Einsätze zur Geschirrgutaufnahme;
• Festigkeits- und Steifigkeitserhöhung, so dass erhöhte Schubbelastungen, insbesondere Torsionen aufgenommen werden können, womit die Besteckschublade insgesamt verwindungssteifer ist;
• Kostenreduktion durch Integration einer Mehrzahl von Bauteilen, insbesondere von zusätzlichen Funktionselementen, so dass auf den bislang notwendigen Einsatz von Anbauteilen verzichtet werden kann.

With the invention a total of a dish rack is proposed, which in particular characterized by the following advantages:

• Improving the appearance by eliminating a conventionally welded coated wire frame by using a design-optimized plastic frame, taking into account a reduced Soiling tendency;
• Improvement of grip haptics;
• Improving flexibility by integrating additional locking functionalities of the cradle-receiving inserts held by the support frame;
• Strength and stiffness increase, so that increased thrust loads, in particular torsions can be added, making the cutlery drawer is more torsionally rigid overall;
• Cost reduction by integration of a plurality of components, in particular of additional functional elements, so that it is possible to dispense with the hitherto necessary use of attachments.

Fig. 1

in schematisch perspektivischer Darstellung eine erfindungsgemäße Besteckschublade;

Fig. 2

in schematischer Draufsicht von oben die erfindungsgemäße Besteckschublade;

Fig. 3

in schematischer Schnittdarstellung ausschnittsweise eine Laufrolle gemäß Schnitt A-A nach Fig. 2;

Fig. 4

in schematischer Explosionsdarstellung die erfindungsgemäße Besteckschublade nach Fig. 1;

Fig. 5

in schematisch perspektivischer Darstellung den Tragrahmen samt Verstärkungsrahmen sowie einen Einsatz der erfindungsgemäßen Besteckschublade, jeweils mit Drahtverstärkung;

Fig. 6

in schematischer Draufsicht von unten die erfindungsgemäße Besteckschublade und

Further features and advantages of the invention will become apparent from the following description with reference to FIGS. Showing:

Fig. 1

in a schematic perspective view of a cutlery drawer according to the invention;

Fig. 2

in a schematic plan view from above the cutlery drawer according to the invention;

Fig. 3

In a schematic sectional view of a detail of a roller according to section AA after Fig. 2 ;

Fig. 4

in a schematic exploded view of the cutlery drawer according to the invention Fig. 1 ;

Fig. 5

in a schematic perspective view of the support frame velvet Reinforcement frame and an insert of the cutlery drawer according to the invention, each with wire reinforcement;

Fig. 6

in a schematic plan view from below the cutlery drawer according to the invention and

Fig. 7 in a schematic detail after the clipping Fig. 6 ,

Fig. 1 can be seen in a schematic perspective view of a cutlery drawer 1 according to the invention. In the intended use case, the cutlery drawer 1 is inserted into the washing compartment of a dishwashing machine not shown in the figures. It can be moved on the user side in the extension direction X relative to the washing compartment of the dishwasher, ie pulled out of this for the purpose of assembly or retracted into this.

The cutlery drawer 1 has, in a manner known per se, a support frame 2 and a first insert 3 movably arranged on the support frame 2. The insert 3 serves the actual picking up of items to be cleaned, i. Dishes, in particular cutlery parts.

The support frame 2 of the cutlery drawer 1 according to the invention consists - as in particular a synopsis of FIGS. 1 to 5 can recognize - made of plastic and is designed as an injection molded part. He has an embedded by encapsulation in the plastic wire reinforcement 4 in the embodiment shown has two U-shaped wire bracket 5 and 6, each extending along three sides of the support frame 2. Thus, the first wire bracket 5 extends beyond with respect to the plane of the drawing Fig. 2 left longitudinal side of the support frame 2 and in sections on the front side with respect to the extension direction X on the one hand and the rear side on the other. The second wire bracket 6 is formed in a corresponding manner and extends with respect to the plane of the drawing Fig. 2 on the right longitudinal side of the support frame 2 and in sections on the front side with respect to the extension direction X on the one hand and the rear side on the other. This factual relationship is also apparent from the exploded view according to Fig. 5 ,

By the wire bracket 5 and 6 of the wire reinforcement 4 is advantageously a Stiffening of the support frame 2 achieved, not only against bending stresses, especially against torsional stresses.

The construction of the support frame makes it possible to integrate in these functional elements 22, which are embedded according to the invention by encapsulation in the plastic of the support frame 2 at least in sections. Fig. 3 makes such a functional element 22 recognizable by way of example in a sectional representation.

As it turned out Fig. 3 , the function element 22 exemplified has a head 23 and a bolt portion 24. The head 23 serves to anchor the functional element 22 in the support frame 2 and is encapsulated by the plastic material forming the support frame 2. The functional element 22 has a considerably larger diameter in the region of the head 23 than in the area of the bolt section 24. As a result, forces are transmitted to the support frame 2 over a larger area and voltage peaks are reduced. The bolt portion 24 is used in the final assembled state of receiving a roller 25, by means of which a movable arrangement of the cutlery drawer 1 is realized in a washing container of a dishwasher.

The bolt portion 24 provides a circumferential shoulder 15 available. In Montierfall the roller 25 is attached to the stop on the shoulder 15 on the bolt portion 24. Roller-side latching hooks 17 engage in this position in a provided by the bolt portion 24 circumferential groove 16, which is achieved by locking a positionally secure positioning of the roller 25 on the pin portion 24.

As in particular the representation after Fig. 4 can recognize the cutlery drawer 1 has a total of four roller assemblies of the type described, namely each longitudinal side over two such rollers 25th

In addition to the functional element 22 described with reference to an axle for a roller 25, it is also possible to provide further functional elements 22 which are embedded in the intended manner by encapsulation in the plastic material of the support frame 2 at least in sections.

How the particular FIGS. 4 and 5 can recognize, the support frame 2 encloses a reinforcing frame 7. This is preferably integral with the support frame 2 is formed and accordingly also made of plastic. In the illustrated embodiment, the reinforcing frame 7 is arranged with the interposition of two spacers 30 in a plane which lies below the plane spanned by the support frame 2 level. By this arrangement of supporting frame 2 on the one hand and reinforcing frame 7 on the other hand, the advantage is achieved that the respectively recorded by the frame inserts 3, 14 and 18 are arranged at different height levels, resulting in a user-side assembly of the respective inserts 3, 14 and 18 with different large dishes allows.

As in particular the representation after Fig. 5 The reinforcing frame 7 also has a wire reinforcement 8 embedded in the plastic by extrusion coating. This wire reinforcement 8 has a first wire bracket 9 and a second wire bracket 10, which are each U-shaped in both wire brackets 9 and 10. In an analogous embodiment of the support frame 2 are also the two wire brackets 9 and 10 of the reinforcing frame 7 with their respective open side opposite each other. It is thus ensured a bending and torsionally rigid configuration of the reinforcing frame 7.

As can be seen in particular from the exploded view Fig. 4 shows, the cutlery drawer 1 has two to the support frame 2 movably arranged inserts, via a first insert 3 and a third insert 18. These two inserts 3 and 18 are formed analogously to each other, wherein Fig. 5 exemplifies the first use 3 can recognize.

As can be seen from the presentation Fig. 5 results, the first insert 3 is formed as an injection molded part made of plastic. He has a by insert molding in the plastic embedded wire reinforcement 11, which has a first wire bracket 12 and a second wire bracket 13. In the manner already described above with reference to supporting frame 2 and reinforcing frame 7, this embodiment of wire reinforcement 11 achieves an overall bending and torsion-resistant design of insert 3. The same applies to the insert 18 which is designed in an analogous manner to the insert 3 and has a wire reinforcement 19, which in turn has a first wire bracket 20 and a second wire bracket 21, as can be seen in particular Fig. 2 results.

In the final assembled state, the cutlery drawer 1 has a center arranged second insert 14, as in particular the FIGS. 1 . 2 and 4 reveal. This insert 14 is designed as an injection molded part without additional wire reinforcement. In the final assembled state, it is latched to the reinforcing frame 7, for which purpose the reinforcing frame 7 has corresponding locking means 31, which engage in corresponding recesses of the second insert 14 in the final assembled state.

Fig. 2 allows the cutlery drawer 1 according to the invention to be seen from above in a plan view. As can be seen from this view, the cutlery drawer 1 has a total of four wire reinforcements, via the wire reinforcement 4 of the support frame 2, the wire reinforcement 8 of the reinforcing frame 7, the wire reinforcement 11 of the first insert 3 and the wire reinforcement 19 of the third insert 18 each wire reinforcement has two wire brackets, which are U-shaped and face each other with their respective open sides facing each other, the wire reinforcement 4, the wire hoops 5 and 6, the wire reinforcement 8, the wire brackets 9 and 10, the wire reinforcement 11, the wire brackets 12 and 13 and the wire reinforcement 19, the wire hanger 20 and 21 have.

This type of embodiment provides advantageously a solid and rigid design of both the individual inserts 3 and 18 and the support frame receiving the movable inserts 2.

Like the others FIGS. 6 and 7 can recognize, with respect to the extension direction X front side of the support frame 2, a recess 27 ready, in which a handle panel 26 is inserted. The user-side feel is thereby improved. In this case, for the position-safe arrangement of the handle panel 26 formed on the handle panel 26 latching hooks 28 are provided, which engage in corresponding recesses 29 of the support frame 2 in the final assembled state.

reference numeral

1

cutlery drawer

2

supporting frame

3

commitment

4

Wire reinforcement (support frame)

5

first wire hanger (support frame)

6

second wire bracket (support frame)

7

reinforcing frame

8th

Wire reinforcement (reinforcement frame)

9

first wire hanger (reinforcement frame)

10

second wire bracket (reinforcement frame)

11

Wire reinforcement (first use)

12

first wire hanger (first use)

13

second wire hanger (first use)

14

second use

15

paragraph

16

groove

17

latch hook

18

third use

19

Wire reinforcement (third use)

20

first wire hanger (third use)

21

second wire hanger (third use)

22

functional element

23

head

24

bolt section

25

caster

26

handle cover

27

recess

28

latch hook

29

recess

30

spacer

31

latching means

Claims (14)

Crockery basket, in particular cutlery drawer (1), for a dishwasher, with a support frame (2) and an insert (3) for receiving crockery, in particular cutlery, and with a functional element (22) arranged on the support frame (29),
characterized in that
the support frame (2) consists of plastic and is designed as an injection molded part, wherein the functional element (22) is embedded at least in sections by encapsulation in the plastic of the support frame (2). Dish rack according to claim 1,
characterized in that
the functional element (22) consists of stainless steel. Dish rack according to claim 1 or 2,
characterized in that
the functional element (22) has a bolt portion (24) which serves to receive a roller (25). Dish rack according to claim 3,
characterized in that
the bolt portion (24) has a latching contour (16) cooperating with a latching means (17) of the roller (25). Dish rack according to one of the preceding claims,
characterized in that
a by wire in the plastic of the support frame (2) embedded wire reinforcement (4) is provided. Dish rack according to claim 5,
characterized in that
the wire reinforcement (4) has a U-shaped wire bracket (5) extending along three sides of the support frame (2). Dish rack according to claim 6,
characterized in that
the wire reinforcement (4) has a second U-shaped wire bracket (6), wherein the two wire brackets (5, 6) face each other with their respective open side. Dish rack according to one of the preceding claims,
characterized in that
the support frame (2) surrounds a reinforcement frame (7), wherein the support frame (2) and the reinforcement frame (7) are integrally formed. Dish rack according to claim 8,
characterized in that
the reinforcing frame (7) has a wire reinforcement (8) embedded in the plastic of the reinforcing frame (7) by overmolding, having two U-shaped wire hoops (9, 10) facing each other with their respective open sides. Dish rack according to one of the preceding claims,
characterized in that
the insert (3) consists of plastic and is formed as an injection molded part, wherein a by insert molding in the plastic of the insert (3) embedded wire reinforcement (11) is provided, which has two U-shaped wire bracket (12, 13) which lie opposite each other with their respective open sides. Dish rack according to one of the preceding claims,
characterized in that
the insert (3) is movably arranged on the support frame (2). Dish rack according to one of the preceding claims,
marked by
a second insert (14) latched to the reinforcing frame (7). Dish rack according to one of the preceding claims,
marked by
a third insert (18) movably mounted on the support frame (2). Dish rack according to claim 13,
characterized in that
the third insert (18) consists of plastic and is designed as an injection-molded part,
wherein there is provided a wire reinforcement (19) embedded in the plastic of the third insert (18) by encapsulation and having two U-shaped wire straps (20, 21) facing each other with their respective open sides.

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