Mattress core for lying furniture and child mattress

Abstract

The invention relates to a mattress core (10) for lying furniture, in particular for a child mattress. The mattress core (10) has: at least one mattress frame element (11); and at least one mattress insert element (12), wherein the at least one mattress frame element (11) has at least one recess (30) at at least one sub-region of the outer surface of the mattress core (10) designed as a lying surface of a user; and wherein the at least one mattress insert element (12) is arranged in at least one recess (30) of the at least one mattress frame element (11) so as to be at least partially removable.

Description

[0001] References to Related Applications

[0002] This application claims the priority of German utility model application No. 20 2022 105040.6 filed on September 7, 2022, which is incorporated by reference in its entirety into this document. Technical Field

[0003] The invention relates to a mattress core for reclining furniture and a mattress having such a mattress core. In addition, the invention relates to a mattress core for a children's mattress and a children's mattress. In addition, the invention also relates to an application of the mattress core for a children's mattress. Background Art

[0004] Mattress cores for reclining furniture, in particular mattress cores for children's mattresses, are usually made of a one-piece mattress element, for example of foam material, with a uniform hardness. Mattress cores can also be made of multiple parts, with a plurality of mattress elements stacked one above the other and bonded to one another.

[0005] As a result, known mattress cores are relatively bulky and take up space. Cleaning of the mattress core is also usually not possible or is only possible with the aid of special equipment. However, the latter may be desirable in particular if the mattress core or the mattress is soiled above average or more frequently, such as is often the case, for example, with children or older users.

[0006] Due to insufficient cleanability, known mattress cores or mattresses are replaced when soiled, which is cost-intensive and disadvantageous from an ecological point of view. Summary of the invention

[0007] The present invention therefore provides an improved mattress core for reclining furniture, in particular for children's mattresses, as well as an improved mattress and / or children's mattress, which may at least partially overcome the disadvantages of the known mattress cores described above.

[0008] The invention is defined in the independent claim. Developments and embodiments of the invention are described in the dependent claims and below.

[0009] The present disclosure relates to a mattress core for reclining furniture, in particular a mattress core for a children's mattress, and a mattress having such a mattress core. In particular, the mattress is designed as a children's mattress and / or a children's mattress. In addition, the present invention relates to the use of a mattress core for a children's mattress. All the above and below descriptions of the mattress core also apply to the mattress or the children's mattress, and vice versa.

[0010] One aspect of the disclosure relates to a mattress core for reclining furniture, in particular a mattress core for a children's mattress. In other words, the mattress core can be designed for a children's mattress and / or as a children's mattress. The mattress core has at least one mattress frame element and at least one mattress insert element, wherein the mattress frame element has at least one recess at least in a sub-region of the outer surface of the mattress core that is designed as a lying surface for a user. The at least one mattress insert element is also at least partially removably arranged in at least one recess of the at least one mattress frame element.

[0011] For example, a mattress insert element can be introduced into and / or removed from a recess of a mattress frame element, for example by a user of the mattress core. The removable arrangement of the mattress insert element in at least one recess of the mattress frame element can in particular improve the cleanability or washability of the mattress core or even achieve cleanability or washability. For example, the mattress frame element and the mattress insert element can be washed separately in a conventional washing machine, since each of the elements itself is significantly reduced in volume and / or weight compared to a complete, conventional mattress core. The mattress insert element can also be subject to more soiling and loads than the mattress frame element, for example because it provides a part of the lying surface for the user. Due to the removability of the mattress insert element from the recess, it is advantageously possible to clean and / or wash only the mattress insert element, without having to necessarily clean the mattress frame element. Due to the two-piece design of the mattress core, the drying time after cleaning the mattress core can also be significantly reduced.

[0012] Such improved cleanability is advantageous in particular when the mattress core is used for children's mattresses or as a children's mattress. It should be noted here that the mattress core according to the invention can advantageously be used not only for children's mattresses, but also for mattresses for adults, in particular for older people or those who need care. For example, in the event of soiling with urine, other body fluids or otherwise caused soiling, the mattress insert element can be removed from the recess when necessary and cleaned, washed and / or disinfected completely and quickly, for example in any conventional washing machine. Directly after cleaning (or after an optional short drying time), the mattress insert element can be introduced into the recess again and the mattress core can be used again. Overall, hygiene can be significantly improved in this way.

[0013] Due to the detachability and improved cleanability of the mattress insert element and the mattress frame element, cleaning costs and corresponding transport costs, for example for transporting the mattress for cleaning, can also be avoided. Regular replacement of the mattress core, as is the case with conventional mattress cores, can also be dispensed with. Furthermore, the improved washability or cleanability can significantly increase the service life of the mattress core. Overall, this can significantly improve the durability of the mattress core or mattress.

[0014] The at least partial, in particular substantially complete, accommodation of the at least one mattress insert element in the at least one recess can also enable the at least one mattress insert element to form a common lying surface together with the at least one mattress frame element. For example, the mattress insert element can be accommodated and / or arranged in the recess in a manner that prevents it from falling out and / or slipping.

[0015] The term "mattress core" is to be understood in a broad sense and includes all devices or elements which can provide a lying surface for a user and can constitute a mattress or can be a component of a mattress. The mattress core can consist completely or at least partially of foam, latex, natural fibers, rubber, natural products and / or spring cores, for example. However, other materials are possible.

[0016] The mattress core can be made in two parts, from a mattress frame element and a mattress insert element. Alternatively, the mattress core can also have more than two parts. For example, the mattress core can have a plurality of recesses for a plurality of mattress insert elements. Alternatively or additionally, the mattress frame element and / or one or more mattress insert elements can be made in multiple parts.

[0017] The mattress core also has a plurality of lying areas or lying zones. For example, the mattress core can have two to seven lying zones. The lying zones can have different deformation properties, compression hardness, elastic properties and / or hardness, so that they can meet the different support requirements of the various body zones. For example, this can achieve an ergonomic lying position, in particular when the user is lying on his back or on his side.

[0018] In principle, the mattress core can have any size and / or hardness. In particular, the mattress core can have a bottom surface of approximately 60×120 cm. 2 , 60×140cm 2 , 70×140cm 2 , 70×160cm 2 , 80×160cm 2 , 80×170cm 2 , 70×170cm 2 , 80×180cm 2 , 80×190cm 2 , 80×200cm 2 , 90×190cm 2 , 90×200cm 2 , 90×220cm 2 , 100×190cm 2 , 100×200cm 2 , 100×220cm 2 , 120×200cm 2 , 140×200cm 2, 140×220cm 2 , 160×200cm 2 , 160×220cm 2 , 180×200cm 2 , 180×220cm 2 , 200×200cm 2 , or 200×220cm 2 Alternatively or additionally, the mattress core may have any hardness, for example a hardness of H1 to H5.

[0019] The mattress core has an upper side and a lower side opposite the upper side, which can be connected at the side by corresponding side surfaces. The upper side, the lower side and the side surfaces of the mattress core provide the outer side or outer surface of the mattress core. The lying surface can refer to the following surface of the upper side and / or the lower side of the mattress core in the context of the present disclosure, which surface can be used as a support surface for the user, for example in a lying position, in supine and / or side lying.

[0020] The upper, lower and / or side surfaces of the mattress core can be smooth and / or contour-free. Alternatively, contours can be formed at least in a subregion of one of the upper, lower, side and / or lying surface, for example in order to locally change the elastic properties of the mattress core. Possible contours can have one or more beads, grooves, cutouts, transverse grooves, openings, cutouts, etc.

[0021] The term "children's mattress" is to be understood in a broad sense and includes all mattresses or mattress cores which are specially designed for children, i.e. people in the childhood period (i.e. the period from birth to sexual development (puberty)). A children's mattress can have, for example, a size of approximately 60×120 cm. 2 , 60×140cm 2 , 70×140cm 2 , 70×160cm 2 , 80×160cm 2 , 80×170cm 2 , 70×170cm 2 , 80×180cm 2 The hardness of a children's mattress can be defined relative to an average body weight, so that a children's mattress or a mattress core for a children's mattress can have a lower hardness and can be softer than a mattress or a mattress core for an adult.

[0022] The term "reclining furniture" is to be understood in a broad sense and may include all furniture or furnishing items on which people and / or animals can sit and / or lie. Exemplary embodiments of reclining furniture are sofas, couches, beds, cushions, chairs and reclining chairs. Alternatively, the reclining furniture may have a slatted or box spring bed frame, on which a mattress core and / or a mattress may be placed.

[0023] The term "mattress frame element" is to be understood in a broad sense and includes all elements of any geometry and shape and of any material, which have at least one recess into which at least one mattress insert element can be arranged so that it can be inserted or removed. The mattress frame element can be designed in one piece or in multiple pieces, wherein the parts of a multiple-piece mattress frame element can be connected to each other detachably or non-detachably, in particular adhesively or welded. The mattress frame element can have any shape. Exemplary shapes of the bottom surface of the mattress frame element or of the mattress element can be square, rectangular, triangular, circular, oval, polygonal, but are not limited thereto.

[0024] The mattress frame element can have a substantially rectangular base and / or be substantially square in shape. The mattress frame element can have a height, width and length, for example a width / length ratio of about 25% to 75%, in particular about 50%, a height / length ratio of about 5% to 20%, in particular about 7%, and a height / width ratio of about 10% to 25%, in particular about 16%. However, other ratios are possible.

[0025] The mattress frame element has an upper side, an underside and at least one side surface. The surface of the upper side, the underside and / or at least one side surface of the mattress frame element can be a smooth surface. Alternatively, at least a subregion of one of the upper side, the underside, the side surface and / or the lying surface can be contoured, for example in order to locally change the elastic properties of the mattress core. Possible contours can have one or more beads, grooves, cutouts, transverse grooves, openings, cutouts, etc.

[0026] The mattress frame element can have a compression hardness of about 2 kPa to 8 kPa, for example about 2 kPa to 4 kPa, in particular about 2.5 kPa to 3.5 kPa, for example about 3.2 kPa, but is not limited thereto. However, other compression hardnesses are possible. The compression hardness of the mattress frame element can be smaller, equal or the same or larger than the compression hardness of the at least one mattress insert element. The upper side, lower side and / or side surface of the mattress frame element can be larger than the upper side, lower side and / or side surface of the at least one mattress insert element.

[0027] The term "recess" is to be understood in this context in a broad sense and may refer to a depression, opening and / or recess of any shape and size, which may extend partially into, completely into or completely through at least one mattress frame element, i.e. into the volume of at least one mattress frame element. The recess may extend from at least a portion of the user's lying surface into the interior or the inner volume of at least one mattress frame element, i.e. into the volume of at least one mattress frame element. Alternatively or additionally, the recess may also extend from at least a portion of the surface opposite the user's lying surface into the interior of at least one mattress frame element.

[0028] For example, at least one cutout may be provided at the upper side and the lower side of the mattress frame element, respectively. In this case, at least one mattress insert element may be arranged in one or both cutouts or in them.

[0029] The at least one recess can have a volume that can be smaller than or equal to the volume of the at least one mattress frame element, so that the mattress insert element can be held and / or accommodated in a form-fitting manner in the at least one recess. The recess can have a round, oval, angular, in particular square, rectangular or polygonal shape, but is not limited thereto.

[0030] At least one cutout and / or at least one mattress insert element can have a length, a width and a depth, for example a width / length ratio of about 30% to 50%, in particular about 41%, a depth / length ratio of about 0.01% to 5%, in particular about 0.02%, a depth / width ratio of about 0.05% to 5%, in particular about 0.06%. However, other ratios are possible. Alternatively or additionally, the cutout can have a ratio between the width of the cutout and the width of the at least one mattress frame element of about 50% to 100%, in particular about 70% to 90%, and / or a ratio between the depth of the cutout and the height of the at least one mattress frame element of about 10% to 100%, in particular about 30% to 95%, without however being restricted thereto. Alternatively or additionally, the recess can have a ratio between the length of the recess and the length of the at least one mattress frame element of approximately 70% to 100%, in particular approximately 85% to 95%, and a ratio between the width of the recess and the width of the at least one mattress frame element of approximately 50% to 100%, in particular approximately 70% to 95%.

[0031] The cutout has at least one lower surface (or side), one upper surface (or side) or outer surface (or outside) that is exposed when the mattress insert element is removed from the cutout, and the cutout has at least one side (or side). The at least one upper surface and / or at least one side may have a smooth surface and / or a contoured surface, but is not limited thereto. The cutout may have a uniform depth, multiple areas of different depths, areas of constant depth, and / or areas of decreasing and increasing depth, but is not limited thereto.

[0032] The term "mattress insert element" is also to be understood in this context in a broad sense and includes all elements of any geometry and shape and of any material, which can be arranged in at least one recess of at least one mattress frame element. When the mattress insert element is arranged in the recess, the at least one mattress insert element can be in contact with the exposed surface or outer surface of the recess and / or at least one side surface, in particular all side surfaces. The mattress insert element can be designed in one piece or in multiple pieces, wherein the multiple parts of a multiple-piece mattress insert element can be connected to one another in a releasable or non-releasable manner, in particular adhesively or welded.

[0033] At least one mattress insert element can have any shape. Exemplary shapes of at least one mattress insert element can be square, rectangular, triangular, round, oval, polygonal, but are not limited thereto. At least one mattress insert element can have a height, a width and a length, for example a width / length ratio of about 30% to 50%, in particular about 41%, a height / length ratio of about 0.01% to 5%, in particular about 0.02%, and a height / width ratio of about 0.05% to 5%, in particular about 0.06%. Alternatively or in addition, at least one mattress insert element can have a ratio between the width of at least one mattress insert element and the width of at least one mattress frame element of about 50% to 100%, in particular about 70% to 95%; a ratio between the length of at least one mattress insert element and the length of at least one mattress frame element of about 70% to 100%, in particular about 85% to 95%; and / or a ratio between the height of at least one mattress insert element and the height of at least one mattress frame element of 10% to 100%, in particular about 30% to 95%, but are not limited thereto.

[0034] Alternatively or additionally, the at least one mattress insert element may have a height that is substantially the same as or greater than the height of the at least one mattress frame element.Alternatively or additionally, the height of the at least one mattress insert element may be less than, equal to, or greater than the height of the at least one cutout.

[0035] At least one mattress insert element has an upper side (or upper surface), a lower side (lower surface) and at least one side (or side). The upper side, the lower side and / or the at least one side surface of at least one mattress insert element can be smooth and / or contoured.

[0036] For example, one or more sides of the cutout or of the mattress frame element may have a profile. An exemplary embodiment of a profiled surface is, for example, a stepped side surface. In the case of a profiled surface, the surface of the mattress frame element opposite the profiled surface may be designed correspondingly or complementary, so that the two surfaces are completely or at least partially in contact and / or the profiles may at least partially engage with one another.

[0037] The at least one mattress insert element may have a compression hardness of about 2 kPa to 8 kPa, such as about 2 kPa to, in particular, about 2.5 kPa to 3.5 kPa, such as 3.2 kPa, but is not limited thereto. The compression hardness of the at least one mattress insert element may be less than, equal to, the same as, or greater than the compression hardness of the at least one mattress frame element. In the case of a plurality of mattress insert elements, each of the plurality of mattress elements may have the same compression hardness or a different compression hardness.

[0038] The surface of the upper side, the lower side and / or the side surfaces of at least one mattress insert element can be smaller than the corresponding surface of the upper side, the lower side and / or the side surfaces of at least one mattress frame element.

[0039] The volume of at least one mattress insert element can be smaller than, equal to or larger than the volume of at least one mattress frame element. At least one mattress insert element can at least partially or completely fill the volume of at least one recess. The volume of the recess can be defined by the sides and the outer side or upper side of the recess. The outer side or upper side of the recess can be oriented in the direction of a user lying on the mattress core. At least one mattress insert element can be arranged in the recess on both sides or can be arranged in the recess, i.e. the mattress element can be first introduced into the recess by means of its upper side or lower side. Therefore, when the mattress insert element is accommodated in the recess, the upper side of the recess and the mattress insert element or the upper side of the recess and the lower side of the mattress insert element touch each other.

[0040] In the present context, the term "removable" is to be understood as meaning that the mattress insert element can be introduced into the recess and can be removed from the recess, for example mechanically or by a user. The mattress insert element can here be detachably connected and / or coupled to at least one mattress frame element. Alternatively or additionally, the mattress insert element can be detachably and / or detachably accommodated in at least one recess of the mattress frame element. The connection between at least one mattress insert element and at least one mattress frame element or its recess can be provided by means of a form fit and / or a force fit, in particular a friction fit, but is not limited thereto.

[0041] For example, the mattress insert element can be held in the recess in a form-fitting manner. For example, the mattress insert element can be elastically deformed, for example squeezed, when introduced into the recess. After the mattress insert element has been introduced into the recess, it can be elastically deformed into its original shape in order to substantially completely fill the recess and hold it therein. Thus, a non-slip arrangement of at least one mattress insert element in the recess can be provided.

[0042] Alternatively, however, the mattress insert element can also be at least partially glued and / or welded to the mattress frame element. Alternatively or additionally, the connection between at least one mattress insert element and at least one mattress frame element can be made by means of a belt or Velcro.

[0043] According to one embodiment, at least one mattress insert element can be introduced into and / or removed from at least one recess of at least one mattress frame element via an outer surface of the mattress core that is formed as a lying surface for a user.

[0044] The introduction of at least one mattress insert element into the at least one recess or the removal thereof via the outer surface of the mattress core, which is formed as the lying surface for the user, allows for simple and uncomplicated handling of the mattress or the mattress core. This also increases the share of the lying surface occupied by the outer side of the mattress insert element, which has a positive effect on hygiene, for example, because the mattress insert element can be washed and cleaned separately.

[0045] In another embodiment, at least one recess is designed such that at least one mattress frame element surrounds and / or encloses at least one mattress insert element arranged in the at least one recess at least along a portion of the outer circumference, in particular over the entire circumference. In other words, the mattress frame element can surround and / or enclose the mattress insert element at least along a portion of the outer circumference. As a result, the mattress insert element can lie flush against the mattress frame element along at least a portion of the outer circumference. Thus, for example, unevenness in the lying surface can be avoided and lying comfort can be increased.

[0046] In addition, a footrest edge can be provided, for example, by a portion of the mattress frame element that surrounds the mattress insert element along the outer circumference. In other words, a footrest edge can be formed by the mattress frame element, which surrounds the mattress insert element at least partially at its outer circumference.

[0047] In another embodiment, at least one mattress insert element is accommodated snugly and / or flush in at least one recess. As a result, the mattress insert element is held in the recess in a form-fitting and / or force-fitting manner. As a result, further fastening means such as adhesive bonds can be omitted. This can in turn advantageously result in a reduced load of harmful substances on the mattress core.

[0048] The term "close contact" is to be understood in a broad sense and includes that at least one mattress insert element is in direct contact with at least one side and / or in touching contact or in contact with at least one side of at least one recess. Alternatively, at least one mattress insert element may be in direct contact and / or in contact with all sides of at least one recess by means of all sides. Alternatively or additionally, the outer side of the mattress insert element may be in contact with the outer side of the recess. In particular, all sides of the mattress insert element that are opposite the mattress frame element are in contact with the corresponding sides or faces of the mattress frame element. This in turn can have a positive effect on the stability of the mattress core, for example because the mattress insert element can be accommodated in the recess in a non-slip manner.

[0049] The term "flush" may mean that the surfaces (top side or at least one side face) of at least one mattress insert element and at least one mattress frame element form a common plane, in particular without offset. An exemplary embodiment is that the depth of at least one recess is equal to the height of at least one mattress insert element, so that the top side of at least one mattress insert element and the top side of at least one mattress frame element form a common plane.

[0050] In another embodiment, at least one mattress insert element is accommodated in at least one recess, so that the outer side of the at least one mattress insert element is flush with the outer side of the at least one mattress frame element. The outer side of the mattress insert element and / or the mattress frame element may be understood here as the side that forms part of the lying surface and / or faces the user. The outer side of the frame element may be understood here as the part of the mattress frame element that at least partially surrounds the recess and / or the mattress insert element along the outer circumference.

[0051] The flush closing between the outer side of the at least one mattress insert element and the outer side of the at least one mattress frame element can achieve increased lying comfort by providing a flat lying surface for the user.

[0052] In a further embodiment, the outer side of at least one mattress insert element and the outer side of at least one mattress frame element together form a lying surface for a user.

[0053] In another embodiment of the mattress core according to the invention, at least one mattress insert element is accommodated in at least one recess so that it is in contact with at least one mattress frame element on all outer sides except for the outer side of the at least one mattress insert element which is arranged as a lying surface for the user.

[0054] In a further embodiment of the mattress core according to the invention, at least one mattress insert element is received in at least one recess in a non-slip manner. The non-slip reception of at least one mattress insert element in at least one recess makes it possible that despite extensive movements of the user during sleep, the at least one mattress insert element remains in the recess, so that an ergonomic lying position can be achieved and a comfortable lying surface can be provided for the user.

[0055] In another embodiment, at least one mattress insert element has a compression strength of about 2 kPa to about 8 kPa, for example about 2 kPa to about 4 kPa, in particular about 2.5 kPa to about 3.5 kPa, and in particular about 3.2 kPa. Alternatively or additionally, at least one mattress frame element has a compression strength of about 2 kPa to about 8 kPa, for example about 2 kPa to about 4 kPa, in particular about 2.5 kPa to about 3.5 kPa, and in particular about 3.2 kPa. Such a compression strength of the mattress insert element and / or the mattress frame element can enable a comfortable lying of the user. In particular when used for children's mattresses, but not limited thereto, such a compression strength can also prevent the head from tilting, so that neck injuries can be effectively avoided.

[0056] In another embodiment, at least one mattress insert element and / or at least one mattress frame element comprises a hydrophobic, washable and / or retortable foam material. In other words, the mattress insert element and / or the mattress frame element can contain and / or consist of a hydrophobic, washable and / or retortable foam material. For example, the mattress core can be washable at at least 60° C., for example at least 70° C., at least 75° C., at least 80° C., at least 90° C. and / or at least 95° C., for example without deforming or significantly changing its compression properties. Alternatively or in addition, the mattress core can be retorted at a temperature above 100° C., for example above 120° C., for example without deforming or significantly changing its compression properties. Washing and / or retorting at such an elevated temperature also results in disinfection, which can further improve the hygiene of the mattress core.

[0057] By forming the mattress core from a hydrophobic foam material, it can also be ensured that dirt and stains can be easily removed. In addition, the drying time after washing can be reduced or completely omitted.

[0058] The term "foam material" is to be understood in a broad sense and includes all foam materials which can be used for a mattress core. The foam material can be a high-resilience foam, in particular a polyethylene foam, but is not limited thereto.

[0059] For example, at least one mattress insert element and / or at least one mattress frame element can include an open-pore foam material. This can, in particular, increase the air permeability and improve the sleeping environment.

[0060] The term "open-cell foam" is to be understood in a broad sense and includes all foams whose foam walls are open. Open-cell foams can absorb liquids and sound like a sponge and / or provide excellent ventilation in the pad area. Exemplary foams are PUR foams, i.e. polyurethane foams or polyester foams. Thus, open-cell foams can be characterized in that the user can breathe through the foam, i.e. the foam can be permeable both to fresh air and to the exhaust of the user. Open-cell foams have, for example, a pore size of approximately 100 μm to 200 μm or more.

[0061] The use of open-cell foam material can lead to improved ventilation of the mattress core overall. In addition, it can be ensured that the user is supplied with sufficient oxygen, especially when lying / sleeping on his stomach. This can ensure a sufficient oxygen supply in particular in the case of children or infants.

[0062] In another embodiment, at least one mattress frame element and at least one mattress insert element have a plurality of air channels. A sufficient oxygen supply to the user can be ensured via the plurality of air channels. The air permeability can also be increased. In addition, dirt and stains can be removed via the air channels. Due to the improved ventilation via the air channels, the drying time can also be reduced.

[0063] The term "air channel" is to be understood in a broad sense and includes all devices, openings, holes, passages and channels through which air can flow in at least one mattress frame element and / or at least one mattress insert element. In the context of the present disclosure, a channel can have a larger cross-section than the pores of the material of the mattress core. A plurality of air channels can have a rectangular, square, triangular, polygonal, circular and oval cross-section and extend through at least a portion of the mattress insert element and / or the mattress frame element in the longitudinal extension direction, respectively. The cross-section of the air channel can be constant or variable in the longitudinal extension direction of the respective air channel. For example, at least a portion of the air channel can have a converging or diverging shape, such as a cone, the radius of which decreases or increases from the upper side or the lower side of the at least one mattress insert element and / or the at least one mattress frame element.

[0064] The air channels can have the same shape or different shapes in at least one mattress frame element and / or at least one mattress insert element. For example, the air channels of a mattress insert element and / or a mattress frame element can have a circular cross section, for example with a radius of about 0.1 cm to about 5 cm, in particular about 0.2 cm to about 3 cm, for example about 0.5 cm to 1.5 cm. The air channels can extend vertically or in a vertical direction, obliquely with respect to the vertical direction and / or in a stepped manner through at least one mattress frame element and / or at least one mattress insert element.

[0065] The air channel can extend from the outside of the mattress insert element and / or the mattress frame element through at least a portion of the mattress insert element and / or the mattress frame element. In particular, the air channel can extend completely through the mattress insert element and / or the mattress frame element.

[0066] The vertical extension or extension direction of the air channel can include that the air channel extends from the upper side of at least one mattress insert element and / or at least one mattress frame element in a vertical direction. In other words, the vertical extension direction can include only one vertical component. The inclined extension can, for example, mean that the longitudinal direction of the air channel can be inclined relative to the vertical line by an inclination angle α of about 5° to 90°, for example about 10° to 45°. In other words, the inclined extension direction can include at least one vertical component and at least one horizontal component. The stepped extension can also include that the multiple air channels have not only at least one vertical area, i.e. an area extending perpendicularly to the upper side and / or lower side of at least one mattress insert element and / or at least one mattress frame element, but also at least one horizontal area, i.e. an area extending parallel to the upper side and / or lower side of at least one mattress insert element and / or at least one mattress frame element. In other words, each air channel can have multiple horizontal and vertical areas. Alternatively or additionally, the areas of the stepped extension of the multiple air channels can also be inclined at an inclined angle.

[0067] The air channel can extend completely through at least one mattress insert element and / or at least one mattress frame element. The cross-sectional dimensions of the air channel, for example the radius of the cross section, can vary or remain constant within the scope of a plurality of air channels. For example, the cross section can increase or decrease from the outside, for example from the side, the head end and / or the foot end, towards the center or the center of the mattress core. In particular, when the cross section increases, a sufficient oxygen supply to the user via the air channel can be ensured.

[0068] The area ratio of the sum of the cross-sectional areas of the air channels to the total area of ​​the lying surface of at least one mattress frame element and / or at least one mattress insert element can be approximately 10% to 50%, in particular approximately 15% to approximately 25%, but is not limited thereto. A plurality of air channels can be arranged on the entire upper side and / or lower side of at least one mattress insert element, or only in the region of at least one mattress insert element and / or mattress frame element. For example, a plurality of air channels can be arranged only in the middle section of at least one mattress insert element and / or mattress frame element and not in the head section and / or foot section. Alternatively or additionally, a plurality of air channels can also be arranged in the head section and / or foot section.

[0069] For example, the plurality of air channels in the head section and / or the foot section can correspond to the plurality of air channels in the at least one mattress frame element and / or the at least one mattress insert element. Alternatively or additionally, however, the plurality of air channels in the head section and / or the foot section can also completely differ from the plurality of air channels in the middle section of the at least one mattress insert element. Exemplary deviations can be the shape, the row arrangement, the radius, or the number of air channels per row.

[0070] Furthermore, the air duct can be arranged on the entire upper side and / or lower side of the at least one mattress frame element or only in the exposed surface or outer side of the recess of the at least one mattress frame element. It should be pointed out here that the surface / upper side / outer side of the at least one mattress frame element exposed by the recess can also be interpreted / understood as a part of the upper side or outer side of the at least one mattress frame element, as used previously. For example, the air duct can be provided in the mattress frame element only in the recess. Alternatively or additionally, the air duct cannot be provided in the side areas and / or end areas of the mattress frame element, which side areas and / or end areas can, for example, surround the recess and / or the mattress insert element.

[0071] The air channels can be distributed over the lying surface or a part thereof in any arrangement. In particular, the air channels can be arranged in a plurality of rows, wherein in each row a plurality of air channels can be arranged one after the other in the transverse direction of the mattress core and a plurality of rows can be arranged parallel to one another in the longitudinal direction. Thus, a plurality of rows of air channels can extend parallel to the end sides of the mattress core and parallel to one another. Alternatively, the rows can be inclined relative to one another.

[0072] Each row of air channels may include the same number or a different number of air channels. Exemplarily, each row may have about 5 to about 25, such as about 10 air channels, wherein about 5 to 30 rows, such as 20 rows, may be spaced apart from each other in the longitudinal direction of the mattress core.

[0073] The air channels of at least one mattress insert element and / or at least one mattress frame element can be arranged in such a way that, when the mattress insert element is arranged in the recess, the air channels provide a common channel in pairs. In other words, when the mattress insert element is arranged in the recess, the air channels of the mattress insert element can transition into and / or open into the air channels of the mattress frame element. In other words, a plurality of air channels of at least one mattress frame element and at least one mattress insert element can form a common channel in pairs.

[0074] The air ducts of the mattress frame element and the mattress insert element, which form a common, in particular through-channel in pairs, can extend parallel to one another and in particular have the same direction of extension. An arc-shaped and / or curved course is also conceivable.

[0075] The air channel can cause the improved ventilation of the mattress core. In addition, it can be ensured by the air channel that the user, especially when lying on his stomach / sleeping, is supplied with enough oxygen.

[0076] In another embodiment, the plurality of air channels of the at least one mattress frame element and the at least one mattress insert element are arranged in a row and parallel to one another. The arrangement in a row and parallel to one another makes it possible to provide and ensure improved ventilation of the mattress core, providing the user with sufficient oxygen, especially when lying / sleeping on his stomach. Liquid drainage is also improved and drying time is reduced.

[0077] In another embodiment, the air ducts of the at least one mattress frame element and the at least one mattress insert element extend completely through the at least one mattress frame element and the at least one mattress insert element, thereby further improving the supply of fresh air and the removal of waste air.

[0078] In a further embodiment, the air channels of the at least one mattress frame element and the at least one mattress insert element each have a radius of approximately 0.1 cm to approximately 5 cm, in particular approximately 0.2 cm to approximately 3 cm, for example approximately 0.5 cm to 1.5 cm.

[0079] In another embodiment, at least one mattress insert element has a head section, a foot section and a middle section, wherein the plurality of air ducts are arranged only in the middle section. The head section and the foot section can each be arranged at the end sides of the mattress core.

[0080] The head segment can be designed so that it serves as a resting or supporting surface for the head of the user. The head segment can be identical to or different from the foot segment. The head segment and / or the foot segment can have an area that is approximately 10% to 40%, in particular 12.5%, of the total area of ​​the at least one mattress insert element.

[0081] The term "middle section" may include all areas of the mattress or mattress core that are located between the head section and the foot section in the longitudinal direction of the mattress core. The middle section may directly adjoin the head section and / or the foot section. The middle section may serve as a resting or supporting surface for the user's buttocks or abdomen.

[0082] Another aspect of the invention relates to the use of a mattress insert as described above and in the following for a mattress core of a mattress and / or a children's mattress. Another aspect of the invention relates to the use of a mattress core as described above and in the following for a mattress and / or a children's mattress.

[0083] Another aspect of the disclosure relates to a mattress and / or a children's mattress having a mattress core as described above and below.The mattress has a cover or mattress cover, wherein the cover completely surrounds and / or surrounds at least one mattress frame element and at least one mattress insert element.

[0084] The term "cover" is to be understood in a broad sense and includes all devices which completely or at least partially surround the mattress core. The cover can be designed as a mattress cover or a mattress protector or can be referred to as a mattress cover or a mattress protector. The terms "cover", "mattress protector" and "mattress cover" can be used synonymously below. The cover can have an upper side, an underside and / or at least one side. The upper side and / or the underside of the cover can each be designed as a lying surface for a user.

[0085] In addition or alternatively to the outer cover, the mattress core can have a cover. The cover can be designed as a cover that fits closely, abuts and / or contacts the outer surface of the mattress core, the mattress insert element and / or the mattress frame element, and at least partially, in particular completely surrounds and / or surrounds at least one mattress frame element and at least one mattress insert element. The cover can be made of an elastic and stretchable material based on a warp knitted fabric or a special fabric with ribs, the so-called tricot fabric. The cover can be designed, for example, with stretchable mesh and / or with a grid structure or mesh structure. Alternatively, the cover can be made of an elastic and stretchable mesh material, wherein the material has square and / or rectangular meshes. However, differently shaped recesses are conceivable. In addition, the material can be made of natural fibers and / or non-natural fibers. Optionally, closures and / or openings can be provided in the cover, for example, so that the mattress insert element can be removed.

[0086] In another embodiment, the outer cover has an outer cover fabric, which has at least an upper layer and a lower layer, wherein the upper layer and the lower layer are at least partially arranged one above the other, wherein at least the upper layer of the outer cover fabric consists of a weft-knitted fabric, for example a 3D weft-knitted fabric, and wherein a plurality of outer cover fabric recesses are formed at least on the outer side of the upper layer facing away from the lower layer.

[0087] The outer cover fabric can be made and / or constituted entirely of weft knitted fabric and / or 3D weft knitted fabric. In the two-layer design of the outer cover fabric, the outer cover fabric has an upper layer and a lower layer, wherein the upper layer and the lower layer can be completely or at least partially, for example, connected and / or braided to each other in a dotted manner with the aid of the threads of the upper layer and / or the lower layer. Alternatively or additionally, a connecting thread can be used, which can connect the upper layer and the lower layer. In the three-layer or more-layer configuration of the outer cover fabric, the outer cover fabric can have one or more intermediate layers of the outer cover fabric in addition to the upper layer and the lower layer, which can be connected and / or braided with the upper layer and / or the lower layer. Alternatively or additionally, a connecting thread can also be used here, which can connect at least two layers of the outer cover fabric, for example, the upper layer, the lower layer and / or one or more intermediate layers.

[0088] The outer cover or the outer cover fabric can be produced in a simple manner, for example on large circular knitting machines operating according to the so-called 3-way technology, with a high throughput in terms of time and high cost-effectiveness. In the context of the present disclosure, the outer cover fabric recesses formed at least on the outer side of the upper layer of the outer cover fabric are strictly distinguished from the meshes that can form the outer cover fabric, the lower layer and / or the upper layer. The outer cover fabric recesses can be dimensioned to be larger than the meshes, the outer cover fabric recesses or the recesses of the outer cover can, for example, have a cross-section that can be several times larger (for example 5 to 100 times or more) than the average cross-section of the meshes of the outer cover fabric.

[0089] The term "weft knitted fabric" is broadly understood here and includes knitted fabrics that are different from the warp knitted spacer fabrics that are usually used for outer covers in many aspects. For example, warp knitted spacer fabrics are usually manufactured on so-called warp knitting machines, while weft knitted fabrics are usually produced on knitting machines. When manufacturing warp knitted spacer fabrics, the mesh is arranged around the warp yarns (therefore there is also a warp knitting machine). The mesh is arranged vertically closely to each other here. Due to this arrangement of the mesh around the warp yarns, the warp knitted spacer fabric is stable, rigid, inelastic and non-stretchable. Different from it, the mesh of the weft knitted fabric is not arranged closely to each other around the warp yarns, but this mesh can be elastic and stretchable, more precisely, not only in the horizontal direction but also in the vertical direction. Therefore, compared with the warp knitted spacer fabric, the feature of the weft knitted fabric is that it is elastic and stretchable not only in the horizontal direction but also in the vertical direction, while the warp knitted spacer fabric is completely inelastic and non-stretchable compared with it. Therefore, the warp knitted spacer fabric is a static and rigid material structure, which has only a small amount of elasticity until it is completely inelastic. Furthermore, warp-knitted spacer fabrics have a rigid, hard and plastic-like feel, whereas weft-knitted fabrics can have a textile or cloth-like and soft feel. Furthermore, in the case of warp-knitted spacer fabrics, fiber ends often protrude from the surface of the knitted fabric, resulting in a prickly and rough feel. Weft-knitted fabrics, on the other hand, generally have a significantly softer feel, which is often caused by the increased elastic properties of weft-knitted fabrics and the significantly finer processing compared to warp-knitted spacer fabrics.

[0090] According to one embodiment, the outer cover and / or the outer cover fabric of the mattress cover is at least partially composed of a spacer fabric, in particular a weft-knitted fabric and / or a warp-knitted spacer fabric. Such a spacer fabric can advantageously enable an air exchange and a moisture exchange.

[0091] According to one embodiment, the outer cover has an outer cover fabric with at least an upper layer and a lower layer, wherein the upper layer and the lower layer are arranged at least partially overlapping each other, and wherein at least the upper layer of the outer cover fabric consists of a weft-knitted fabric, for example a 3D weft-knitted fabric, and wherein a plurality of recesses are formed at least on the outer side of the upper layer facing away from the lower layer.

[0092] The lower layer can be basically closed and / or closed braided and the cutout can form a rip or opening in the upper layer. Therefore, the cutout can be limited by the lower layer. Between the upper layer and the lower layer, the cutout can be optionally at least partially limited by spacer yarns. The contour of the cutout at the upper layer can be defined by the weft knitting machine of the 3D weft knitted fabric at the upper layer.

[0093] The mattress cover thus utilizes the advantages of a weft-knitted fabric which, for example, has a spacer structure with a mesh, for example at least partially consisting of braided monofilament or multifilament spaced-apart threads.

[0094] Furthermore, the recesses formed on the outer side can achieve increased air circulation, increased air permeability and / or increased moisture dissipation.

[0095] The cutouts can be designed to be open to the outside, i.e. in the direction of the user, and / or have a cross section that is open to the outside. Thus, the cutouts can represent openings. Here, the cutouts can be generally advantageous with regard to air exchange and moisture removal as well as compensation for temperature fluctuations. The cutouts can also provide increased elasticity, which can provide the user with a soft touch and can also allow the cover to be optimally adapted to the user or head lying thereon without the user or head being affected by the brittle, spacing threads that are usually perceptible in warp-knitted spacer fabrics.

[0096] The cutout formed at least at the outer side of the upper layer can also provide and / or form the mesh structure of the outer cover fabric. In other words, the outer cover fabric can have a mesh structure with cutouts, such as a honeycomb mesh structure, at least at the outer side.

[0097] The cutouts of the net structure and / or the outer cover fabric can be arranged, for example, in a regular arrangement on the outer side of the outer cover fabric. In other words, the cutouts can be arranged regularly and / or in a regular pattern. However, irregular, for example patterned, arrangements are also conceivable.

[0098] A recess, for example an outwardly open recess, can be variable in its geometry and thus, for example, be round, angular, oval, polygonal, elliptical or also designed in any other way with regard to its open cross section.

[0099] For example, the recesses are designed in a honeycomb manner. Alternatively or additionally, the recesses can have a round, rounded, angular, quadrilateral, rectangular, polygonal, triangular, elliptical, oval and / or polygonal cross section.

[0100] According to one embodiment, the upper layer and / or the lower layer of the outer cover fabric at least partially consists of natural fibers.

[0101] By using natural fibers, which can be contained and / or knitted in a weft-knitted fabric, for example, the sustainability and / or ecology of a mattress cover (hereinafter also referred to as "cover") can be increased, for example because the natural fibers can be obtained from renewable raw materials. Natural fibers can also be characterized by an increased load-bearing capacity and / or durability. In addition, natural fibers can thus result in a pleasant, soft touch for the user. Natural fibers can also be characterized by increased skin compatibility, breathability and / or odor neutrality. In addition, natural fibers allow for a cost-effective production of the mattress cover.

[0102] According to one embodiment, the natural fibers of the cover or mattress cover or the corresponding cover fabric are animal hair fibers, wool fibers, cotton fibers, hemp fibers, eucalyptus fibers, bamboo fibers, hemp fibers, wood fibers, viscose fibers, flax fibers, silk fibers, plant fibers or combinations thereof. Such natural fibers can be characterized, for example, by improved durability, odor neutrality, skin compatibility, durability and / or firmness compared to artificial fibers.

[0103] According to one embodiment, the upper layer, the lower layer and / or one or more intermediate layers of the outer cover fabric have a weight content of natural fibers of 2% to 99%, for example at least 5%, at least 10%, at least 15%, at least 20% and / or at least 25%, for example based on the corresponding layer or the entire outer cover fabric. At least 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70% or 75% of natural fibers are also conceivable.

[0104] According to one embodiment, the proportion of natural fibers in the upper layer (e.g., based on the corresponding layer or the entire outer cover fabric), e.g., the proportion by weight and / or the proportion by volume, is greater than the proportion of natural fibers in the lower layer and / or one or more intermediate layers, e.g., the proportion by weight and / or the proportion by volume. For example, the proportion in the upper layer can be at least twice as large as the corresponding proportion of natural fibers in the lower layer and / or one or more intermediate layers.

[0105] According to one embodiment, the upper layer consists essentially and / or nearly completely, for example completely, of natural fibers, and the lower layer, and optionally one or more intermediate layers, consists essentially and / or nearly completely, for example completely, of artificial fibers.

[0106] According to one embodiment, the upper and / or lower layers of the outer cover fabric are at least partially composed of textured, twisted yarns, in particular multifilament yarns, such as polyester yarns, polyethylene yarns, polyamide yarns, polyethylene yarns and / or polyamide yarns, thereby providing a soft and pleasant touch.

[0107] According to one embodiment, the upper and / or lower layer of the outer cover fabric is at least partially composed of monofilament yarn, in particular polyester yarn, smooth polyester yarn, polyethylene yarn, smooth polyethylene yarn, polyamide yarn, and / or smooth polyamide yarn. If the outer cover fabric is composed of monofilament yarn on the lower side of the outer cover fabric facing the mattress core or pillow core, the removal or introduction of the mattress core or pillow core can be facilitated.

[0108] For example, the outer cover fabric can be composed of a weft-knitted fabric in at least two layers, with an upper layer forming the outer side and a fabric layer forming the inner or lower layer, preferably composed of polyester fibers, polyethylene fibers and / or polyamide fibers.

[0109] The inner or lower layer can be, for example, a smooth fabric layer, which can also be patterned and / or, for example, provided with a pattern, on which the upper layer of the weft-knitted fabric consisting of textured, twisted yarns, in particular multifilament yarns, can be built up toward the outside.

[0110] According to one embodiment, the outer cover fabric also has an intermediate layer, which is at least dotted and / or at least partially knitted with the upper layer and / or the lower layer. The intermediate layer can be used to bulk up the outer cover fabric. This can also increase the lying comfort.

[0111] According to one embodiment, the intermediate layer at least partially consists of a multifilament yarn, in particular a polyester yarn, a smooth polyester yarn, a polyethylene yarn, a smooth polyethylene yarn, a polyamide yarn, and / or a smooth polyamide yarn.

[0112] According to one embodiment, the intermediate layer at least partially consists of a multifilament yarn, such as a textured, twisted multifilament yarn, such as a polyester yarn, a polyethylene yarn, a polyamide yarn, a polyethylene yarn and / or a polyamide yarn.

[0113] According to one embodiment, the intermediate layer is at least partially composed of natural fibers. Here, the advantages explained above with respect to natural fibers are provided.

[0114] According to one embodiment, the cutout extends at least substantially within the thickness of the upper layer and optionally the middle layer. In particular, the cutout can extend completely through the upper layer, so that the cutout can constitute and / or be a through-hole in the upper layer.

[0115] The cutouts can, for example, extend at least substantially over the entire thickness of the upper layer, that is to say from the outside to or close to the inner or lower layer, for example in order to achieve optimal air conditioning with regard to air and moisture exchange between the two sides of the outer cover fabric. In addition, the depth of the cutouts can increase the softness of the upper layer consisting of the weft-knitted fabric, so that an improved haptic effect can be achieved.

[0116] The outer shell fabric can also be constructed in three layers, with a middle layer, for example a layer knitted with an upper layer, having monofilament yarns as filling material. In this way, stabilization of the weft knitted fabric and the generally desirable volume in terms of haptics can be achieved while at the same time having high air and moisture permeability. The monofilament yarns can be formed, for example, at least partially from polyester, polyamide and / or polyethylene, but other synthetic fibers can also be used for this purpose.

[0117] In order to give the outwardly directed surface or outer side of the weft-knitted fabric a particularly smooth and pleasant touch, the surface or outer side surrounding the recess can be formed by finer weft knitting stitches than the rest of the outer side.

[0118] According to one embodiment, the upper layer accounts for 50% to 70% by weight of the outer shell fabric, in particular 55% to 60%. Tests have shown that this weight share is particularly advantageous with regard to comfort and micro-air conditioning.

[0119] According to one embodiment, the weight share of the lower layer in the outer shell fabric is 20% to 30%, in particular 25% to 30%.

[0120] According to one embodiment, the weight proportion of the intermediate layer to the outer shell fabric is 10% to 20%, in particular 15% to 20%.

[0121] When using filling material, optimum results with regard to air permeability, stability and bulking have been found with an intermediate layer weight fraction of 10% to 20%, in particular 15% to 20%, of the outer shell fabric.

[0122] According to one embodiment, the outer cover fabric has a 250 g / m 2 Up to 300g / m 2 As a result, the outer cover fabric can have the required durability and at the same time be simple to handle with regard to its weight both in production and in use.

[0123] According to one embodiment, the outer cover fabric is rubberized, coated and / or provided with latex on at least one side, for example the outer side, the inner side, the lower side and / or the upper side, for example in order to prevent the penetration of moisture and / or water.

[0124] According to one embodiment, the cover fabric is designed identically on all sides. In other words, the mattress cover can be designed identically on all sides, that is to say on the top side, on the bottom side and on the longitudinal and transverse sides if necessary, but it is also conceivable in principle that different sides of the cover are designed differently.

[0125] The identical design of all sides allows particularly simple production, wherein ventilation strips on the transverse and longitudinal sides, which are usually found in known covers, in particular mattress covers, can also be dispensed with due to the high air permeability of the cover fabric.

[0126] According to one embodiment, the mattress, the mattress cover or the cover has an at least partially surrounding closure, in particular a zipper, which can be opened or closed for inserting or removing the mattress core.

[0127] Furthermore, for easier handling of the mattress and / or reclining furniture covered with the mattress cover, a handle can be sewn onto the mattress cover.

[0128] The cover or mattress cover may also be washable, for example at a temperature of at least 30°C, at least 40°C, at least 50°C, at least 60°C, at least 70°C, at least 80°C or at least 90°C.

[0129] Another aspect of the present disclosure relates to the use of a mattress core as described above and below for a mattress, a reclining furniture and / or a children's mattress.

[0130] Another aspect of the present disclosure relates to the use of a mattress as described above and below as a children's mattress.

[0131] Further features, advantages and application possibilities of the invention emerge from the following description of exemplary embodiments and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0132] The drawings are only schematic and not true to scale. If the same reference numerals are used in different drawings in the following description, these reference numerals represent the same, similar, or similarly functioning elements. The drawings show:

[0133] Figure 1 A schematic top view showing one embodiment of a mattress core according to the invention;

[0134] Figure 2 A perspective view showing one embodiment of a mattress core according to the present invention;

[0135] Figure 3 A perspective view showing an embodiment of a mattress core according to the invention with a removed mattress insert element;

[0136] Figure 4 A schematic cross-sectional view showing one embodiment of a mattress core according to the present invention;

[0137] Figure 5 A schematic diagram showing a first embodiment of an air channel;

[0138] Figure 6 A schematic diagram showing a second embodiment of an air channel;

[0139] Figure 7 A schematic view showing a mattress with a cover;

[0140] Figure 8 A perspective view of a mattress is shown with a cover fitted over a mattress core;

[0141] Fig. 9 A greatly simplified partial top view showing the outer side of the housing;

[0142] Fig.10 a schematic cross-sectional view showing a portion of a cover fabric through the cover; and

[0143] Fig.11 A detailed view of the closure of the housing is shown. DETAILED DESCRIPTION

[0144] Figure 1 A schematic top view of an embodiment of a mattress core according to the invention is shown.

[0145] The mattress core 10 has a mattress frame element 11 and a mattress insert element 12, wherein the mattress insert element 12 is removably arranged in or in a recess 30 of the mattress frame element 11. The mattress frame element 11 and the mattress insert element 12 have a rectangular bottom surface and / or a square shape. Here, the mattress insert element 12 is arranged in the recess 30 of the mattress frame element 11 so that the mattress insert element 12 is in direct contact or contact with the open surface or outer surface (also referred to as outer side) of the recess 30 and the four side surfaces of the recess 30 of the mattress frame element 11 by means of its bottom side and four side surfaces. The mattress frame element 11 has a length L and a width B. The mattress insert element 12 has a length l measured in the longitudinal direction 7 and a width b measured in the transverse direction 5, orthogonally to the longitudinal direction 7 and orthogonally to the vertical direction. Similarly, the mattress frame element has a length L measured in the longitudinal direction 7 and a width B measured in the transverse direction.

[0146] The width / length ratio B / L of the mattress frame element 11 can be approximately 50%. The width / length ratio b / l of the mattress insert element 12 can be approximately 40%. The width / width ratio b / B is approximately 70% and the length / length ratio l / L is approximately 85%.

[0147] Both the mattress insert element 12 and the mattress frame element 11 have a plurality of air channels 13. The plurality of air channels 13 all have the same radius and are arranged in 20 parallel rows of 10 air channels each. The parallel rows have a straight line shape and the plurality of air channels 13 are also arranged parallel to each other.

[0148] The mattress insert element 12 has a head section 14, a foot section 15 and a middle section 16, wherein a plurality of air channels are provided only in the middle section. Neither the head section 14 nor the foot section 15 has a plurality of air channels. The head section and the foot section are identical and each take up approximately 12.5% ​​of the total area of ​​the mattress insert element.

[0149] The mattress frame element 11 forms a footrest edge which completely surrounds the recess 30 and / or the mattress insert element 12 arranged therein.

[0150] Figure 2 A perspective view of an embodiment of a mattress core 10 according to the present invention is shown. Unless otherwise indicated, Figure 2 The mattress core 10 has Figure 1 The mattress core 10 has the same elements and features as the mattress core 10.

[0151] The mattress insert element 12 is Figure 2 The mattress core is arranged flush in the recess 30 of the mattress frame element 11. Flush here means that the upper side of the mattress frame element 11 and the upper side of the mattress insert element 12 form a common plane, which also forms the lying surface of the mattress core. In this case, the common plane has no sharp transition, i.e. a raised portion or an edge, between the mattress insert element 12 and the mattress frame element 11.

[0152] Figure 3 A three-dimensional view of an embodiment of a mattress core 10 according to the invention is shown with a removed mattress insert. Unless otherwise indicated, Figure 3 The mattress core 10 has Figure 1 and Figure 2 The mattress core 10 has the same elements and features as the mattress core 10.

[0153] The recess 30 has an open surface 31 or outer side 31 and side faces 31, in particular four sides. The recess 30 extends into at least one mattress frame element 11, from the outer side of the mattress core or the lying surface into the interior of the mattress frame element 11.

[0154] The mattress insert element 12 has a height h which can correspond to the depth of the recess 30. The height / length ratio h / l of the mattress insert element 12 is approximately 0.02% and the height / width ratio of the mattress insert element 12 is approximately 0.06%. The recess 30 has a width C.

[0155] The recess 30 and the mattress insert element can have corresponding shapes and geometries, so that the mattress insert element 12 can be received in a non-slip manner in the recess 30. In particular, the recess 30 and the mattress insert element 12 can have complementary geometries.

[0156] Figure 4A schematic cross-sectional view of an embodiment of a mattress core according to the invention is shown. Figure 4 The mattress core 10 has Figures 1 to 3 The same elements and features of the mattress core.

[0157] The mattress frame element 11 has an upper side 41, an underside 42 and four side faces 43 and a height H. The recess 30 has a depth T and a length K. The height h of the mattress insert element 12 and the depth of the recess 30 are identical, so that a common plane is formed by the mattress insert element 12 and the mattress frame element 11. A plurality of air openings 13 or air channels extend completely through the mattress insert element 12 and the mattress frame element 11 in a vertical direction, in particular orthogonally to the longitudinal extension direction 7 and the transverse direction 5 of the mattress core 10.

[0158] The air channels 13 of the mattress insert element 12 and the air channels 13 of the mattress frame element 11 form a common channel in pairs. The air openings or air channels 13 have a constant radius over their length.

[0159] As in Figures 1 to 4 As can be seen in the figure, the air passage 13 can have a circular cross section and extend parallel to the vertical direction. However, the air passage 13 can also be inclined to the vertical line and / or have different cross sections, as described in detail above.

[0160] Figure 5 A schematic cross-sectional view of a first embodiment of an air channel 13 of a mattress core 10 is shown. Unless otherwise indicated, Figure 5 The mattress core 10 has Figures 1 to 4 The mattress core 10 has the same elements and features as the mattress core 10.

[0161] The air channel 13 is an air channel which is inclined at an angle of inclination α in at least one mattress insert element 12 and / or in the mattress frame element 11. The angle of inclination α is 45°.

[0162] Figure 6 A schematic cross-sectional view of a second embodiment of the air channel of the mattress core 10 is shown. Unless otherwise indicated, Figure 6 The mattress core 10 has Figures 1 to 5 The mattress core 10 has the same elements and features as the mattress core 10.

[0163] The air channel 13 is a stepped air channel in at least one mattress element 12 and / or mattress frame element 11. The stepped air channel 13 has a vertical or upright section 610 and has a ground-parallel or horizontal section 611. The vertical section 610 extends vertically perpendicular to the upper and lower sides of the mattress insert element 12 and / or mattress frame element 11. The ground-parallel section extends horizontally or parallel to the upper and lower sides of the mattress insert element 12 and / or mattress frame element 11.

[0164] Figure 7 A schematic view of a mattress 500 is shown. The mattress has a mattress core 10, e.g. Figures 1 to 6 Mattress core 10.

[0165] Furthermore, the mattress 500 has an outer cover 61 which completely surrounds the mattress core 10 .

[0166] The outer cover 61 is closed by means of a completely surrounding closure 62 , in particular a zipper, which prevents unintentional opening. The completely surrounding closure 62 is arranged on the underside of the mattress core or outer cover 61 .

[0167] Figure 8 A perspective view of a mattress 500 is shown with a cover 61 pulled over a mattress core 10 .

[0168] The cover 61 or mattress cover 61 (or mattress protective cover 61) shown by way of example is shown in the state of being spread out on the mattress core 10, wherein the cover 61 forms a first lying surface on the upper side 71 and has a second lying surface on the opposite lower side 72 for a sleeping user.

[0169] The outer cover 61 is formed circumferentially from the same outer cover fabric 70, wherein the lateral transverse surfaces 73 and longitudinal surfaces 74 transition, optionally seamlessly, into the upper side 71 and the lower side 72. However, in contrast thereto, in other embodiments it can also be provided that the surfaces of the outer cover fabric 70 are separated by seams and optionally by webbing strips.

[0170] On the transverse sides 73 and the longitudinal sides 74, a circumferential closure 62 in the form of a zipper is sewn into the mattress cover 61 (or mattress protective cover 61) for the purpose of introducing and removing the mattress core 10. In addition, on the lateral longitudinal sides 74, a plurality of handles 75 are provided for lifting the mattress core 10 surrounded by the mattress cover 61 (or mattress protective cover 61), of which only one handle 75 is shown by way of example.

[0171] As in Figure 8 In the part X in FIG. 1 , the part represents the entire surface of the mattress cover 61 (or mattress protective cover 61 ), and in Fig. 9 and 10It can be seen that the outer cover fabric 70 is formed up to its outer side 77 with a weft-knitted fabric 76 , for example a 3D weft-knitted fabric.

[0172] The outer fabric 70 has a honeycomb-like network structure with regularly finely arranged recesses 78 that are open to the outside. The recesses 78 preferably have a round, rounded, elliptical and / or oval cross section to the outside, which in the unrolled state can be determined, for example, to a width of 2 mm to 4 mm and a length of approximately 3 mm to 5 mm.

[0173] The material webs 81 of the weft-knitted fabric 76 located between the recesses 78 that are arranged offset and regularly relative to one another can be dimensioned at least approximately to the same extent with regard to their width.

[0174] The outer cover fabric 70 of the outer cover 61 is present as a three-layer weft-knitted fabric having an upper layer 91 forming the outer side 77, a middle layer 92 forming the weft-knitted fabric 76 together and knitted with the upper layer 91, and an inner or lower layer 93 knitted with the upper layer 91 and / or the middle layer 92.

[0175] The upper layer 91 can have monofilament yarn, such as smooth monofilament yarn, or multifilament yarn, such as textured, twisted multifilament yarn. Similarly, the lower layer 93 can also have monofilament yarn, such as smooth monofilament yarn, or multifilament yarn, such as textured, twisted multifilament yarn. Likewise, the middle layer 92 can be at least partially composed of monofilament yarn or multifilament yarn.

[0176] One or more of the upper layer 91, the middle layer 92 and the lower layer 93 may also contain and / or be at least partially composed of natural fibers, as described above. The natural fibers may be, for example, animal hair fibers, wool fibers, cotton fibers, hemp fibers, eucalyptus fibers, bamboo fibers, hemp fibers, wood fibers, viscose fibers, flax fibers, silk fibers, plant fibers or combinations thereof. Such natural fibers may be characterized by improved persistence, odor neutrality, skin compatibility, durability and / or firmness, for example, compared to artificial fibers.

[0177] The upper layer 91 also has a fine knit structure 94 at the outer side 77 which gives the surface a soft touch.

[0178] With regard to thickness, the upper layer 91 is dimensioned in the advantageous embodiment shown such that it accounts for at least 70% to 80% of the total thickness of the outer cover material 70 in order to exploit as much as possible the advantages of the microclimate of the weft-knitted fabric 76 .

[0179] In order to achieve the greatest possible air flow and optimal moisture removal to the outside 77, the honeycomb-shaped recesses 78 extend substantially within the thickness of the upper layer 91 and the middle layer 92 until they adjoin the lower layer 93, so that the outer cover material has a high degree of flexibility and stretchability in width due to the recesses 78. The elasticity in height leads to softness, which can be limited by the filling material of the middle layer 91 according to the desired softness.

[0180] It is understood that the outer covering material 70 can be produced, depending on the application, for example on a circular knitting machine by means of all known interval knitting methods and by means of known cleaning methods, such as, for example, by means of a washing, bleaching and shrinking process following the knitting process.

[0181] Fig.11 A detailed view of a closure of the cover is shown. The closure 62 is a closure that prevents unintentional opening. The closure is characterized in that it is a zipper and its slider 121 does not have a zipper body or a pull tab.

[0182] It should be noted that the terms "comprising" and "having" do not exclude other elements or steps, and the indefinite article "a" or "an" does not exclude a plurality. In addition, it should be noted that the features or steps described with reference to the above embodiments may also be used in combination with other features or steps of other embodiments described above.

Claims

1. A mattress core (10) for reclining furniture, in particular for a children's mattress, the mattress core (10) comprising: at least one mattress frame element (11); and at least one mattress insert element (12); wherein the at least one mattress frame element (11) has at least one recess (30) at at least one sub-region of the outer surface of the mattress core (10) which is formed as a lying surface for a user; and The at least one mattress insert element (12) is arranged at least partially removably in the at least one recess (30) of the at least one mattress frame element (11).

2. The mattress core (10) according to claim 1, The at least one recess (30) is designed to correspond to the geometry of the at least one mattress insert element (12), so that the at least one mattress insert element (12) is at least partially, in particular substantially completely, accommodated in the at least one recess (30).

3. Mattress core (10) according to any one of the preceding claims, The at least one mattress insert element (12) can be introduced into the at least one recess (30) of the at least one mattress frame element (11) and / or removed from the at least one recess (30) of the at least one mattress frame element (11) via the outer surface of the mattress core (10) which is configured as a lying surface for a user.

4. Mattress core (10) according to any one of the preceding claims, The at least one recess (30) is designed such that the at least one mattress frame element (11) surrounds and / or encloses the mattress insert element (12) at least along a portion of the outer circumference, in particular over the entire circumference.

5. Mattress core (10) according to any one of the preceding claims, The at least one mattress insert element (12) can be accommodated in the at least one recess (30) in a close-fitting and / or flush manner.

6. Mattress core (10) according to any one of the preceding claims, The at least one mattress insert element (12) can be accommodated and / or arranged in the at least one recess (30) so that the outer side of the at least one mattress insert element (12) is flush with the outer side of the at least one mattress frame element (11).

7. Mattress core (10) according to any one of the preceding claims, The outer side of the at least one mattress insert element (12) and the outer side of the at least one mattress frame element (11) together form a lying surface for a user.

8. Mattress core (10) according to any one of the preceding claims, The at least one mattress insert element (12) is accommodated in the at least one recess (30) so that the at least one mattress insert element is in contact with the at least one mattress frame element (11) at all outer sides except for the outer side of the at least one mattress insert element (12) which is a part of the user's lying surface.

9. Mattress core (10) according to any one of the preceding claims, The at least one mattress insert element (12) is accommodated in the at least one recess (30) in a non-slip manner.

10. Mattress core (10) according to any one of the preceding claims, The at least one mattress insert element (12) has a compression hardness of approximately 2 kPa to 8 kPa, in particular approximately 2.5 kPa to 3.5 kPa.

11. Mattress core (10) according to any one of the preceding claims, The at least one mattress insert element (12) comprises a hydrophobic, washable and / or steamable foam material.

12. Mattress core (10) according to any one of the preceding claims, The at least one mattress insert element (12) and / or the at least one mattress frame element (11) comprises an open-pore foam material.

13. Mattress core (10) according to any one of the preceding claims, The at least one mattress frame element (11) and / or the at least one mattress insert element (12) has a plurality of air channels (13).

14. The mattress core (10) according to claim 13, The plurality of air channels (13) of the at least one mattress frame element (11) and / or of the at least one mattress insert element (12) are arranged in a plurality of rows, in particular parallel to one another.

15. Mattress core (10) according to any one of claims 13 or 14, The plurality of air channels (13) of the at least one mattress frame element (11) and the at least one mattress insert element are arranged such that the plurality of air channels form a common channel in pairs.

16. Mattress core (10) according to any one of claims 13 to 15, The air channel (13) of the at least one mattress frame element (11) and the at least one mattress insert element (12) respectively extends completely through the at least one mattress frame element (11) and / or the at least one mattress insert element (12).

17. Mattress core (10) according to any one of claims 13 to 16, The plurality of air channels (13) of the at least one mattress frame element (11) and / or the at least one mattress insert element (12) each have a radius of approximately 0.1 cm to approximately 5 cm, in particular approximately 0.2 cm to approximately 3 cm, for example approximately 0.5 cm to 1.5 cm.

18. Mattress core (10) according to any one of claims 13 to 17, wherein the at least one mattress insert element (12) has a head section (14), a foot section (15) and a middle section (16), The plurality of air channels (13) are arranged only in the middle section (16).

19. A mattress (100), in particular a children's mattress (100), comprising: A mattress core (10) according to any one of the preceding claims, and Outer cover (61); The outer cover (61) completely surrounds at least one mattress frame element (11) and at least one mattress insert element (12).

20. The mattress (100) according to claim 19, The outer cover (61) comprises an outer cover fabric (70), wherein the outer cover fabric comprises at least an upper layer (91) and a lower layer (93), wherein the upper layer (91) and the lower layer (93) are at least partially arranged to overlap one another; wherein at least the upper layer (91) of the outer cover fabric (70) is composed of a weft knitted fabric, such as a 3D weft knitted fabric, and In this case, at least on the outer side (77) of the upper layer (91) facing away from the lower layer (93), a plurality of outer cover fabric recesses (78) are formed.

21. The mattress (100) according to any one of claims 19 and 20, The outer cover (61) has a closure (62) which prevents unintentional opening.

22. Use of a mattress core according to any one of claims 1 to 18 in a mattress, in particular a children's mattress.

23. Use of the mattress according to any one of claims 19 to 21 as a children's mattress.

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