Mattress cores for reclining furniture and children's mattresses

Abstract

A mattress core (10) for reclining furniture, in particular for a children's mattress, is proposed. The mattress core (10) comprises at least one mattress frame element (11) and at least one mattress insert element (12). The at least one mattress frame element (11) comprises at least one recess (30) in at least one partial region of the outer surface of the mattress core formed as a lying surface for a user. The at least one mattress insert element (12) is at least partially removably arranged in the at least one recess (30) of the at least one mattress frame element (11).

Description

REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority from German Utility Model Application No. 20 2022 105 040.6, filed September 7, 2022, which is incorporated herein by reference in its entirety. [Technical Field]

[0002] The present invention relates to a mattress core for reclining furniture and a mattress having such a mattress core. Further, the present invention relates to a mattress core for a child's mattress and a child's mattress. Additionally, the present invention relates to the use of a mattress core for a child's mattress. [Background technology]

[0003] Mattress cores for reclining furniture, especially children's mattresses, are typically made from a single mattress element, such as a foam with uniform hardness. The mattress core can also be made from multiple pieces, stacked on top of each other and glued together.

[0004] Therefore, known mattress cores are relatively voluminous and bulky. Cleaning of the mattress core is also usually not possible or is only possible with special equipment. However, cleaning may be desirable, especially when the mattress core or mattress is soiled above average or frequently, as is often the case with, for example, children or elderly users.

[0005] Due to the insufficient cleaning possibilities, known mattress cores or mattresses are replaced when they become soiled, which is costly and disadvantageous from an ecological point of view. Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention therefore provides an improved mattress core for reclining furniture, in particular for children's mattresses, and an improved mattress and / or children's mattress that may at least partially overcome the drawbacks of known mattress cores mentioned above.

[0007] The invention is defined in the independent claims. Further developments and embodiments of the invention are specified in the dependent claims and the following description.

[0008] The present disclosure relates to a mattress core for use in reclining furniture, particularly a children's mattress, and a mattress having such a mattress core. In particular, the mattress can be formed as a children's mattress and / or a children's mattress. Additionally, the present invention relates to the use of the mattress core for a children's mattress. All of the above and following descriptions of the mattress core apply equally to a mattress or a children's mattress, and vice versa. [Means for solving the problem]

[0009] One aspect of the present disclosure relates to a mattress core for reclining furniture, particularly a children's mattress. In other words, the mattress core can be configured for and / or as a children's mattress. The mattress core includes at least one mattress frame element and at least one mattress insert element. The mattress frame element includes at least one recess in at least one partial region of an outer surface of the mattress core that is configured as a lying surface for a user. The at least one mattress insert element is further at least partially removably disposed in the at least one recess of the at least one mattress frame element.

[0010] For example, the mattress insert element can be inserted into a recess in the mattress frame element and / or removed therefrom, for example, by a user of the mattress core. Removably arranging the mattress insert element in at least one recess in the mattress frame element can, in particular, improve or enable for the first time the cleanability or washability of the mattress core. For example, the mattress frame element and the mattress insert element can be washed separately in a conventional washing machine because each element can have a significantly reduced volume and / or weight compared to a complete conventional mattress core. The mattress insert element may also be more susceptible to soiling and stress than the mattress frame element, for example, because it may provide part of the lying surface for the user. Due to the removable mattress insert element from the recess, it can advantageously be cleaned and / or washed alone, without necessarily having to clean the mattress frame element. Due to the two-part structure of the mattress core, drying time after cleaning the mattress core can be significantly reduced.

[0011] This improved cleaning possibility can be particularly advantageous when using the mattress core for or as a children's mattress. In this regard, it should be noted that the mattress core according to the invention can be advantageously used not only for children's mattresses, but also for mattresses for adults, especially the elderly, or people in need of care. For example, if the mattress insert element becomes soiled with urine, other body fluids, or other causes, the mattress insert element can be removed from the recess as needed and thoroughly and quickly cleaned, washed, and / or disinfected, for example in any conventional washing machine. Immediately after cleaning (or optionally after a short drying time), the mattress insert element can be reinserted into the recess and the mattress core can be reused. This can significantly improve hygiene overall.

[0012] Due to the separability of the mattress insert element and the mattress frame and the improved cleaning possibilities, cleaning costs and corresponding transportation costs, for example for taking the mattress to a dry cleaner, can also be avoided. Furthermore, there is no need to periodically replace the mattress core, as is the case with conventional mattress cores. Additionally, the improved washability and cleaning possibilities can significantly increase the lifespan of the mattress core. Therefore, the sustainability of the mattress core or mattress as a whole can be significantly improved.

[0013] At least one recess may further allow the at least one mattress insert element to be at least partially received, in particular substantially completely received, so that the at least one mattress insert element forms a common lying surface with the at least one mattress frame element. For example, the mattress insert element may be received and / or positioned in the recess in a way that prevents it from falling and / or slipping.

[0014] The term mattress core is to be understood broadly herein and includes all devices or elements that provide a lying surface for a user and that may form or be a component of a mattress. The mattress core may be formed entirely or at least partially from, for example, foam, latex, natural fibers, rubber, natural products, and / or spring cores. However, other materials are possible.

[0015] The mattress core may be formed in two parts, consisting of a mattress frame element and a mattress insert element. Alternatively, the mattress core may comprise more than two components. For example, the mattress core may comprise multiple recesses for multiple mattress insert elements. Alternatively or additionally, the mattress frame element and / or one or more mattress insert elements may be formed in multiple parts.

[0016] The mattress core can further comprise multiple lying areas or zones. For example, the mattress core can comprise two to seven lying zones. The lying zones can have different deformation characteristics, compression hardness, elastic properties, and / or hardness. As a result, they can meet the different support needs of individual body regions. For example, this can enable an ergonomic lying position, especially when the user is in a supine or lateral position.

[0017] In principle, the mattress core can have any size and / or hardness. In particular, the mattress core can have dimensions of approximately 60 x 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 , 100x200cm 2 , 100x220cm 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 x 220 cm 2 Alternatively or additionally, the mattress core may have any hardness, for example, H1 to H5.

[0018] The mattress core includes an upper side and a lower side opposite the upper side, which may be connected at the sides by corresponding side surfaces. The upper, lower, and side sides of the mattress core provide the outer or exterior surfaces of the mattress core. In the context of this disclosure, a lying surface may refer to the upper and / or lower surfaces of the mattress core that may function as a support surface for a user, for example, in a lying, supine, and / or lateral position.

[0019] The upper, lower, and / or side surfaces of the mattress core can be smooth and / or can be formed without profiles. Alternatively, at least one partial region of one of the upper, lower, side, and / or lying surfaces can be formed with a profile, for example to locally modify the elastic properties of the mattress core. Possible profiles can comprise one or more beads, grooves, recesses, transverse grooves, openings, indentations, etc.

[0020] The term children's mattress is to be understood broadly in this specification and includes all mattresses or mattress cores specially designed for children, i.e. for humans in the infancy stage, i.e. the period of life from birth to sexual development (puberty). A children's mattress may, for example, be approximately 60x120 cm 2 , 60×140cm 2 , 70×140cm 2 , 70×160cm 2 , 80×160cm 2 , 80×170cm 2 , 70×170cm 2 , 80×180cm 2 The firmness of a child's mattress may be defined relative to an average body weight. As a result, a child's mattress or mattress core for a child's mattress may have a lower firmness and therefore may be softer than an adult mattress or mattress core.

[0021] The term "reclining furniture" should be broadly understood herein and can include any furniture or fixture on which a person and / or animal can sit and / or recline. Exemplary reclining furniture includes armchairs, sofas, beds, mattresses, chairs, and loungers. Optionally, the reclining furniture can include a slatted or spring frame on which a mattress core and / or mattress can be placed.

[0022] The term mattress frame element is to be understood broadly in this specification and includes all elements of any geometry and shape and of any material that have at least one recess into which at least one mattress insert element can be inserted or removably positioned. The mattress frame element can be formed in one piece or in multiple pieces. The multiple pieces of a multiple-piece mattress frame element can be detachably or non-detachably connected to each other, in particular by glue or welding. The mattress frame element can have any shape. Exemplary shapes of the mattress frame element or the base area of ​​the mattress element can be, but are not limited to, square, rectangular, triangular, circular, oval, and polygonal.

[0023] The mattress frame element may in particular have a substantially rectangular base area and / or may be substantially cuboid-shaped. The mattress frame element may have a height, width and length with a width / length ratio of, for example, about 25-75%, in particular about 50%, a height / length ratio of, for example, about 5-20%, in particular about 7%, and a height / width ratio of, for example, about 10-25%, in particular about 16%. However, other ratios are also possible.

[0024] The mattress frame element comprises an upper side, a lower side and at least one side surface. The surfaces of the upper side, the lower side and / or at least one side surface of the mattress frame element may present a smooth surface. Alternatively, at least one partial region of one of the upper side, the lower side, the side surface and / or the lying surface may be profiled, for example in order to locally modify the elastic properties of the mattress core. Possible profiles may comprise one or more beads, grooves, recesses, transverse grooves, openings, indentations, etc.

[0025] The mattress frame element may have a compression hardness of about 2 kPa to 8 kPa, for example, about 2 kPa to 4 kPa, particularly 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 may be less than, equal to, identical to, or greater than the compression hardness of the at least one mattress insert element. The upper, lower, and / or side surfaces of the mattress frame element may be larger than the upper, lower, and / or side surfaces of the at least one mattress insert element.

[0026] The term recess is to be understood broadly herein and can refer to a depression, opening, and / or recess of any shape and size that can extend partially, completely, or completely through at least one mattress frame element, i.e., within the volume of the at least one mattress frame element. The recess can extend from at least one portion of the user's lying surface to the interior or interior volume of the at least one mattress frame element, i.e., within the volume of the at least one mattress frame element. Alternatively or additionally, the recess can also extend from at least one portion of the surface facing the user's lying surface to the interior of the at least one mattress frame element.

[0027] For example, at least one recess may be provided on each of the upper and lower sides of the mattress frame element, in which case at least one mattress insert element may be located in or within one or both recesses.

[0028] The at least one recess may have a volume that may be smaller than or equal to the volume of the at least one mattress frame element, such that the mattress insert element may be form-fittingly held and / or received in the at least one recess. The recess may have, but is not limited to, a circular, oval, angular, particularly square, rectangular, or polygonal shape.

[0029] The at least one recess and / or at least one mattress insert element may have a length, width, and depth, for example, with a width / length ratio of about 30-50%, particularly about 41%, a depth / length ratio of about 0.01-5%, particularly about 0.02%, and a depth / width ratio of about 0.05-5%, particularly about 0.06%. However, other ratios are possible. Alternatively or additionally, the recess may have, but is not limited to, a ratio between the width of the recess and the width of the at least one mattress frame element of about 50% to about 100%, particularly about 70% to 90%, and / or a ratio between the depth of the recess and the height of the at least one mattress frame element of about 10% to 100%, particularly about 30% to 95%. Alternatively or additionally, the recess may have a ratio between the length of the recess and the length of the at least one mattress frame element of between about 70% and 100%, in particular between about 85% and 95%, and a ratio between the width of the recess and the width of the at least one mattress frame element of between about 50% and 100%, in particular between about 70% and 95%.

[0030] The recess has at least one lower surface (or underside), one upper or outer surface (or outside), and at least one side surface (or lateral surface) that are exposed when the mattress insert element is removed from the recess. The at least one upper surface and / or at least one side surface can have, but are not limited to, a smooth and / or contoured surface. The recess can have, but are not limited to, a uniform depth, multiple regions of different depths, regions of constant depth, and / or regions of decreasing and increasing depth.

[0031] The term mattress insert element should also be broadly understood herein and includes all elements of any geometry and shape and any material that can be placed in at least one recess of at least one mattress frame element. The at least one mattress insert element can contact the exposed or outer surface and / or at least one side, particularly all sides, of the recess when the mattress insert element is placed in the recess. The mattress insert element can be formed in one piece or in multiple pieces. The multiple pieces of a multiple-piece mattress insert element can be detachably or non-detachably connected to each other, particularly by glue or welding.

[0032] The at least one mattress insert element can have any shape. Exemplary shapes of the at least one mattress insert element can be, but are not limited to, square, rectangular, triangular, circular, oval, and polygonal. The at least one mattress insert element can have a height, width, and length with a width / length ratio of, for example, about 30-50%, particularly about 41%, a height / length ratio of about 0.01-5%, particularly about 0.02%, and a height / width ratio of about 0.05-5%, particularly about 0.06%. Alternatively or additionally, the at least one mattress insert element may have, but is not limited to, a ratio between the width of the at least one mattress insert element and the width of the at least one mattress frame element of between about 50% and 100%, in particular between about 70% and 95%, a ratio between the length of the at least one mattress insert element and the length of the at least one mattress frame element of between about 70% and 100%, in particular between about 85% and 95%, and / or a ratio between the height of the at least one mattress insert element and the height of the at least one mattress frame element of between 10% and 100%, in particular between about 30% and 95%.

[0033] 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, the same as, or greater than the height of the at least one recess.

[0034] The at least one mattress insert element has an upper side (or top surface), a lower side (or bottom surface), and at least one side surface (or lateral surface). The upper, lower, and / or at least one side surface of the at least one mattress insert element can be smooth and / or contoured.

[0035] For example, one or more sides of the recess or mattress frame element may be provided with a contour. Exemplary embodiments of contoured surfaces include, for example, step-shaped sides. In the case of a contoured surface, the surface of the mattress frame element opposite the contoured surface may be correspondingly or complementary shaped so that both surfaces fully or at least partially contact and / or so that their contours at least partially interlock.

[0036] The at least one mattress insert element can have a compression hardness of about 2 kPa to 8 kPa, for example, about 2 kPa to 8 kPa, particularly about 2.5 kPa to 3.5 kPa, for example, 3.2 kPa, but is not limited thereto. The compression hardness of the at least one mattress insert element can 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 multiple mattress insert elements, each mattress element of the multiple mattress elements can have the same or different compression hardnesses.

[0037] The upper, lower and / or side surfaces of the at least one mattress insert element may be smaller than the corresponding upper, lower and / or side surfaces of the at least one mattress frame element.

[0038] The volume of the at least one mattress insert element may be smaller, the same as, or larger than the volume of the at least one mattress frame element. The at least one mattress insert element may at least partially or completely fill the volume of the at least one recess. The volume of the recess may be defined by the sides and the outer or upper side of the recess. The outer or upper side of the recess may face toward a user lying on the mattress core. The at least one mattress insert element may be arranged on both sides of the recess. That is, the mattress element may be inserted into the recess with its upper side or its lower side first. Thus, when the mattress insert element is received in the recess, the upper side of the recess and the upper side of the mattress insert element, or the lower side of the recess and the lower side of the mattress insert element, may come into contact with each other.

[0039] The term "removable" in the context of this specification may be understood to mean that the mattress insert element can be inserted into and removed from the recess, for example by a machine or by a user. The mattress insert element may be detachably connected and / or coupled to the at least one mattress frame element. Alternatively or additionally, the mattress insert element may be separably and / or detachably received in the at least one recess of the mattress frame element. The connection between the at least one mattress insert element and the at least one mattress frame element or its recess may be provided by, but is not limited to, a form-fitting and / or a force-fitting, in particular a friction-fitting.

[0040] 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, such as squeezed, when inserted into the recess. After the mattress insert element is inserted into the recess, it can elastically deform to its original shape to substantially completely fill the recess and be held therein. This allows at least one mattress insert element to be positioned in the recess without slipping.

[0041] Optionally, however, the mattress insert element can also be glued and / or welded, at least in areas, to the mattress frame element. Alternatively or additionally, the connection between the at least one mattress insert element and the at least one mattress frame element can be made using straps or Velcro fasteners.

[0042] According to one embodiment, at least one mattress insert element is insertable into and / or removable from at least one recess in at least one mattress frame element via an outer surface of the mattress core formed as a lying surface for a user.

[0043] By inserting or removing at least one mattress insert element into or from at least one recess via the outer surface of the mattress core, which is formed as a lying surface for the user, handling of the mattress or mattress core can be simplified and uncomplicated. This allows the proportion of the lying surface that is outside the mattress insert element to be increased. This can have beneficial effects on hygiene, for example, since the mattress insert element can be washed and cleaned separately.

[0044] In a further embodiment, the at least one recess is designed such that the at least one mattress frame element surrounds and / or encloses, in particular completely, the at least one mattress insert element disposed in the at least one recess along at least a portion of its periphery. In other words, the mattress frame element can surround and / or enclose the mattress insert element along at least a portion of its periphery. This allows the mattress insert element to lie flush with the mattress frame element along at least a portion of its periphery. For example, irregularities on the lying surface can be avoided, improving sleeping comfort.

[0045] Furthermore, the step edge may be provided, for example, by a portion of the mattress frame element that circumferentially surrounds the mattress insert element, or in other words, the step edge may be formed by a mattress frame element that at least partially surrounds the periphery of the mattress insert element.

[0046] In a further embodiment, at least one mattress insert element is received in the at least one recess with a tight fit and / or flushness. This allows the mattress insert element to be held in the recess in a form-locking and / or force-locking manner. Therefore, further fastening means such as adhesives can be omitted. This in turn has the advantage of reducing the load of contaminants on the mattress core.

[0047] The term "close fit" should be broadly understood herein and includes at least one mattress insert element directly contacting and / or in contact with at least one side of at least one recess on at least one side. Alternatively, at least one mattress insert element can directly contact and / or in contact with all sides of at least one recess on all sides. Alternatively or additionally, the outer side of the mattress insert element can contact the outer side of the recess. In particular, all sides of the mattress insert element facing the mattress frame element can contact corresponding sides or surfaces of the mattress frame element. This can have a further beneficial effect on the stability of the mattress core, for example, by allowing the mattress insert element to be received in the recess without slipping.

[0048] The term flush may mean herein that the surfaces (top or at least one side) of the at least one mattress insert element and the at least one mattress frame element form a common plane, in particular without an offset. An exemplary embodiment is one in which the depth of the at least one recess is equal to the height of the at least one mattress insert element, such that the top side of the at least one mattress insert element and the top side of the at least one mattress frame element form a common plane.

[0049] In a further embodiment, the at least one mattress insert element is received in the at least one recess such that an outer side of the at least one mattress insert element is flush with an outer side of the at least one mattress frame element. The outer side of the mattress insert element and / or mattress frame element may refer to a side that forms part of the lying surface and / or a side that faces the user. The outer side of the frame element may refer to a portion of the mattress frame element that at least partially surrounds the recess and / or mattress insert element along its periphery.

[0050] A flush finish between the exterior of the at least one mattress insert element and the exterior of the at least one mattress frame element can be provided to provide a flat lying surface for the user, thereby enhancing sleeping comfort.

[0051] In a further embodiment, the outer side of the at least one mattress insert element and the outer side of the at least one mattress frame element together form a lying surface for a user.

[0052] 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 so as to contact the at least one mattress frame element on all outer sides except the outer side of the at least one mattress insert element intended as a lying surface for the user.

[0053] In a further embodiment of the mattress core according to the invention, the at least one mattress insert element is non-sliply received in the at least one recess. The non-slip reception of the at least one mattress insert element in the at least one recess allows the at least one mattress insert element to remain in the recess despite strong movements of the user during sleep, thereby enabling an ergonomic lying position and providing a comfortable lying surface for the user.

[0054] In a further embodiment, at least one mattress insert element has a compression hardness of about 2 kPa to about 8 kPa, e.g., about 2 kPa to about 4 kPa, particularly about 2.5 kPa to about 3.5 kPa, and more particularly about 3.2 kPa. Alternatively or additionally, at least one mattress frame element has a compression hardness of about 2 kPa to about 8 kPa, e.g., about 2 kPa to about 4 kPa, particularly about 2.5 kPa to about 3.5 kPa, and more particularly about 3.2 kPa. Such a compression hardness of the mattress insert element and / or mattress frame element can allow a user to lie comfortably. In particular, but not exclusively, when used for a child's mattress, such a level of mattress hardness can additionally prevent head tilt, thereby effectively avoiding neck injuries.

[0055] In a further embodiment, at least one mattress insert element and / or at least one mattress frame element comprises a hydrophobic, washable, and / or boilable foam. In other words, the mattress insert element and / or the mattress frame element can include and / or be made from a hydrophobic and / or boilable foam. For example, the mattress core can be washable at a temperature of at least 60°C, e.g., at least 70°C, at least 75°C, at least 80°C, at least 90°C, and / or at least 95°C, e.g., without being plastically deformed or having its compressive properties significantly altered. Alternatively or additionally, the mattress core can be boiled at a temperature above 100°C, e.g., above 120°C, e.g., without being plastically deformed or having its compressive properties significantly altered. Washing and / or boiling at such high temperatures can additionally provide a disinfecting effect, which can further increase the hygiene of the mattress core.

[0056] Forming the mattress core from a hydrophobic foam further ensures that dirt and contaminants are easily removable, plus drying times after washing can be reduced or eliminated entirely.

[0057] The term foam is to be understood broadly herein and includes all foams that can be used for the mattress core. The foam may be, but is not limited to, a cold foam, particularly a polyurethane foam.

[0058] For example, at least one mattress insert element and / or at least one mattress frame element may comprise open-pore foam, which, among other things, may increase breathability and improve the sleeping environment.

[0059] The term "open-cell foam" should be broadly understood herein and includes all foams with open cell walls. Open-cell foams can absorb liquids and sound like a sponge and / or provide excellent ventilation in the area of ​​the cushion. Exemplary foams are PUR foams, i.e., polyurethane or polyester foams. Open-cell foams can therefore be characterized by the fact that the user can breathe through them, i.e., the foam can be permeable to both fresh air and the air exhaled by the user. Open-cell foams have pore sizes of, for example, about 100-200 micrometers or more.

[0060] The use of open-pore foam can lead to improved ventilation of the mattress overall, and can also ensure that the user receives sufficient oxygen, especially when lying / sleeping on their stomach, which can help ensure a sufficient supply of oxygen, especially in the case of children or infants.

[0061] In a further embodiment, at least one mattress frame element and at least one mattress insert element comprise a plurality of air channels. Via the plurality of air channels, in particular, a sufficient supply of oxygen to the user can be ensured. Breathability can also be increased. Additionally, dirt and contaminants can be removed via the air channels. Due to the improved ventilation via the air channels, drying times can also be reduced.

[0062] The term "air channel" should be broadly understood herein and includes all devices, openings, holes, passages, and channels in at least one mattress frame element and / or at least one mattress insert element through which air can flow. A channel in the context of this disclosure can have a cross-section larger than the pores in the material of the mattress core. The air channels can have rectangular, square, triangular, polygonal, circular, and oval cross-sections, each extending longitudinally through at least one portion of the mattress insert element and / or mattress frame element. The cross-section of the air channel can be constant or variable along the length of each air channel. For example, at least one portion of the air channel can have a converging or diverging shape, such as a conical shape with a continuously decreasing or increasing radius from the upper or lower side of the at least one mattress insert element and / or at least one mattress frame element.

[0063] The air channels can have the same or different shapes in the at least one mattress frame element and / or the at least one mattress insert element. For example, the air channels in the mattress insert element and / or mattress frame element can have a circular cross section, e.g., with a radius of about 0.1 cm to about 5 cm, in particular about 0.2 cm to about 3 cm, e.g., about 0.5 cm to 1.5 cm. The air channels can extend upright or vertically, at an angle to the vertical, and / or in a step shape through the at least one mattress frame element and / or the at least one mattress insert element.

[0064] The air channel may extend from the exterior of the mattress insert element and / or mattress frame element through at least a portion of the mattress insert element and / or mattress frame element, in particular the air channel may extend completely through the mattress insert element and / or mattress frame element.

[0065] The vertical extension or extension direction of the air channels can include air channels extending vertically from the upper side of the at least one mattress insert element and / or at least one mattress frame element. In other words, the vertical extension direction can include only a vertical component. The inclined extension can mean, for example, that the longitudinal direction of the air channels can be inclined with respect to the vertical 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 step-shaped extension can further include the following: the plurality of air channels have both at least one vertical region, i.e., a region extending vertically relative to the upper and / or lower sides of the at least one mattress insert element and / or at least one mattress frame element, and at least one horizontal region, i.e., a region extending parallel to the upper and / or lower sides of the at least one mattress insert element and / or at least one mattress frame element. In other words, each air channel may comprise a plurality of horizontal and vertical regions. Alternatively or additionally, the regions of the step-shaped extension of the plurality of air channels may be inclined by an inclination angle.

[0066] The air channels can extend completely through at least one mattress insert element and / or at least one mattress frame element. The cross-sectional size of the air channels, e.g., the radius of the cross-section, can vary or remain constant across the air channels. For example, the cross-section can increase or decrease from the outer sides, e.g., the sides, head end, and / or foot end, toward the center or middle of the mattress core. In particular, if the cross-section increases, this can ensure that the user receives sufficient oxygen through the air channels.

[0067] The ratio of the total cross-sectional area of ​​the air channels to the total area of ​​the lying surface of the at least one mattress frame element and / or at least one mattress insert element can be, but is not limited to, approximately 10% to 50%, particularly approximately 15% to approximately 25%. The air channels can be located across the entire upper and / or lower sides of the at least one mattress insert element, or only in the area of ​​the at least one mattress insert element and / or mattress frame element. For example, the air channels can be located only in the central portion of the at least one mattress insert element and / or mattress frame element, and not in the head and / or foot portions. Alternatively or additionally, the air channels can be located in the head and / or foot portions.

[0068] For example, the plurality of air channels in the head and / or foot sections can correspond to the plurality of air channels in at least one mattress frame element and / or at least one mattress insert element. Alternatively or additionally, the plurality of air channels in the head and / or foot sections can be entirely different from the plurality of air channels in the central portion of at least one mattress insert element. Exemplary deviations can be shape, row arrangement, radius, or number of air channels per row.

[0069] Furthermore, the air channels may be arranged over the entire upper and / or lower sides of the at least one mattress frame element, or only on the exposed surface or outer side of the recess of the at least one mattress frame element. In this regard, it is noted that the surface / upper side / outer side of the at least one mattress frame element exposed by the recess may also be interpreted / considered as part of the upper side or outer side of the at least one mattress frame element, as previously used. For example, the air channels may be provided in the mattress frame element only in the recess. Alternatively or additionally, the air channels may not be provided in the side and / or end regions of the mattress frame element, which may surround, for example, the recess and / or the mattress insert element.

[0070] The air channels can be distributed in any arrangement across the lying surface or a portion thereof. In particular, the air channels can be arranged in multiple rows. In each row, multiple air channels can be arranged laterally across the mattress core, and multiple rows can be arranged parallel to each other in the longitudinal direction. Thus, multiple rows of air channels can extend parallel to the end sides of the mattress core and parallel to each other. Alternatively, the rows can be angled relative to each other.

[0071] Each row of air channels can include the same or a different number of air channels. For example, each row can include about 5 to about 25, e.g., about 10, air channels. About 5 to 30, e.g., about 20, rows can be formed and spaced apart from one another longitudinally of the mattress core.

[0072] The air channels of the at least one mattress insert element and / or the at least one mattress frame element can be arranged such that they pair to provide a common channel when the mattress insert element is positioned in the recess. In other words, the air channels of the mattress insert element can merge and / or open into the air channels of the mattress frame element when the mattress insert element is positioned in the recess. In other words, the air channels of the at least one mattress frame element and the at least one mattress insert element can pair to form a common channel.

[0073] The paired air channels of the mattress frame element and the mattress insert element, which form a common, in particular continuous, channel, can extend parallel to one another and in particular have the same direction of extension. Bent and / or curved courses are also conceivable.

[0074] The air channels can lead to improved ventilation of the mattress core. In addition, the air channels can ensure that the user receives sufficient oxygen, especially when lying / sleeping on their stomach.

[0075] In a further embodiment, the air channels of the at least one mattress frame element and the at least one mattress insert element are arranged in rows parallel to one another. The parallel rows can improve ventilation of the mattress core and ensure sufficient oxygen is supplied to the user, especially when lying / sleeping on their stomach. Liquid evacuation can also be improved, resulting in shorter drying times.

[0076] In a further embodiment, the plurality of air channels 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, which can further enhance the supply of fresh air and the evacuation of used air.

[0077] In a further embodiment, the plurality of air channels of the at least one mattress frame element and the at least one mattress insert element each have a radius of about 0.1 cm to about 5 cm, particularly about 0.2 cm to about 3 cm, for example about 0.5 cm to 1.5 cm.

[0078] In a further embodiment, the at least one mattress insert element comprises a head section, a foot section, and a midsection, and the plurality of air channels are disposed only in the midsection, and the head section and the foot section can each be disposed at an end of the mattress core.

[0079] The head section can be configured to function as a resting or support surface for the user's head. The head section can be the same as or different from the foot section. The head section and / or foot section can have an area of ​​about 10-40%, particularly 12.5%, of the total area of ​​the at least one mattress insert element.

[0080] The term "mid-section" can include any region of the mattress or mattress core located longitudinally of the mattress core between the head and foot sections. The mid-section can be immediately adjacent to the head and / or foot sections. The mid-section serves as a lying surface or a support surface for the user's lower back or abdomen.

[0081] Further aspects of the present disclosure relate to the use of a mattress insert element as described above and below for a mattress core of a mattress and / or a children's mattress.Further aspects of the present disclosure relate to the use of a mattress core as described above and below for a mattress and / or a children's mattress.

[0082] A further aspect of the present disclosure relates to a mattress and / or a children's mattress comprising a mattress core as described above and below, the mattress comprising a cover or mattress cover, the cover completely enclosing and / or surrounding at least one mattress frame element and at least one mattress insert element.

[0083] The term cover should be understood broadly herein and includes any device that completely or at least partially surrounds the mattress core. A cover can be formed as or referred to as a mattress cover or mattress protector cover. The terms cover, mattress protector cover, and mattress cover can be used synonymously hereinafter. A cover can have an upper side, a lower side, and / or at least one side. The upper and / or lower sides of the cover can each be sized as a lying surface for a user.

[0084] In addition to or as an alternative to the cover, the mattress core can be provided with a stocking. The stocking can be formed as a cover for at least one mattress frame element and at least one mattress insert element, which is in close contact with, abuts, and / or contacts the outer surfaces of the mattress core, the mattress insert element, and / or at least one mattress frame element and at least one mattress insert element. The stocking at least partially, in particular completely, surrounds and / or encloses the at least one mattress frame element and at least one mattress insert element. The stocking can be made from an elastic and stretchable fabric based on warp knitting or a special woven fabric with ribs, known as tricot. The stocking can be formed, for example, with an elastic stitch and / or with a grid or net structure. Alternatively, the stocking can be formed from an elastic and stretchable mesh fabric. This fabric has square and / or rectangular stitches. However, other shapes of recesses are also conceivable. Furthermore, the material can be formed from natural and / or non-natural fibers. Optionally, the stocking may be provided with a closure and / or an opening, for example to allow the mattress insert element to be removed.

[0085] In a further embodiment, the cover comprises a cover fabric having at least one upper layer and one lower layer, the upper and lower layers being at least partially disposed one above the other, at least the upper layer of the cover fabric being formed from a weft-knitted spacer fabric, for example a three-dimensional weft-knitted spacer fabric, and a plurality of cover fabric recesses being formed in at least the outer side of the upper layer opposite the lower layer.

[0086] The cover fabric can be entirely made and / or formed from a weft-knitted spacer fabric and / or a three-dimensional weft-knitted spacer fabric. In a two-layer design of the cover fabric, the cover fabric comprises an upper layer and a lower layer. The upper and lower layers can be entirely or at least partially connected and / or interwoven with each other, e.g., selectively, by the yarns of the upper and / or lower layers. Alternatively or additionally, a connecting yarn can be used that can connect the upper and lower layers. When the cover fabric is formed from three or more layers, the cover fabric can comprise, in addition to the upper and lower layers, one or more intermediate layers of the cover fabric, which can be connected and / or interwoven with the upper and / or lower layers. Alternatively or additionally, a connecting yarn can be used here that can connect at least two layers of the cover fabric, such as the upper layer, the lower layer, and / or one or more intermediate layers.

[0087] The cover or cover fabric can be produced in a simple manner, for example, on large circular knitting machines operating according to the so-called three-way technology, which allows for a high throughput in time and thus a high economic efficiency. In the context of the present disclosure, the cover fabric recess formed at least on the outside of the upper layer of the cover fabric should be strictly distinguished from the stitches from which the cover fabric, lower layer, and / or upper layer can be formed. Compared to these stitches, the cover fabric recess may be larger in size. For example, the cover fabric recess or cover recess of the cover can have a cross-sectional area (approximately 5 to 100 times or more) larger than the average cross-sectional area of ​​the stitches of the cover fabric.

[0088] The term weft-knitted spacer fabric should be broadly understood in this specification and includes knitted fabrics that differ in several respects from the warp-knitted spacer fabrics typically used for covers. For example, warp-knitted spacer fabrics are regularly produced on a so-called warp knitting machine. On the other hand, weft-knitted spacer fabrics are typically produced on a knitting machine. When producing warp-knitted spacer fabrics, the stitches are stretched around the warp yarns (hence the warp knitting machine). The stitches are aligned perpendicular to one another. Due to this arrangement of the stitches around the warp yarns, the warp-knitted spacer fabric is stable, rigid, inelastic, and inelastic. In contrast, the stitches of a weft-knitted spacer fabric are not stretched around the warp yarns, and the stitches themselves can be elastic and stretchable in both the horizontal and vertical directions. Therefore, compared to warp-knitted spacer fabrics, weft-knitted spacer fabrics can be characterized as being elastic and stretchable, particularly in both the horizontal and vertical directions, while warp-knitted spacer fabrics, by comparison, are completely inelastic and inelastic. Therefore, warp-knitted spacer fabrics are static, rigid fabric structures with little or no elasticity. Furthermore, warp-knitted spacer fabrics are stiff, hard, and have a plastic-like feel. In contrast, weft-knitted spacer fabrics can have a soft feel similar to textiles or fabrics. In addition, in warp-knitted spacer fabrics, the fiber ends regularly protrude from the surface of the warp-knitted fabric, resulting in a scratchy, rough feel. In contrast, weft-knitted spacer fabrics typically have a much softer feel. This is due to the improved elastic properties of weft-knitted spacer fabrics and their much finer processing compared to warp-knitted spacer fabrics.

[0089] According to one embodiment, the cover and / or cover fabric of the mattress cover is at least partly made from a spacer textile, in particular a weft-knitted and / or warp-knitted spacer fabric, which can advantageously allow air and moisture exchange.

[0090] According to one embodiment, the cover comprises a cover fabric having at least one upper layer and one lower layer, the upper and lower layers being at least partially arranged one above the other, at least the upper layer of the cover fabric being formed from a weft-knitted spacer fabric, for example a three-dimensional weft-knitted spacer fabric, and a plurality of recesses being formed in at least the outer side of the upper layer opposite the lower layer.

[0091] The lower layer is substantially closed and / or knitted closed. The recess can form a breakthrough or opening in the upper layer. Thus, the recess can be defined by the lower layer. Between the upper and lower layers, the recess can optionally be at least partially defined by spacer yarns. The contour of the recess in the upper layer can be defined by the stitches of the three-dimensional weft-knitted spacer fabric of the upper layer.

[0092] The mattress cover therefore takes advantage of the advantages of a weft-knitted spacer fabric, which comprises a spacer structure having stitches made from, for example, at least partially knitted monofilament or multifilament spacer yarns.

[0093] Furthermore, recesses formed on the exterior allow for increased air circulation, increased breathability and / or increased moisture removal.

[0094] The recesses can be configured to open outward, i.e., toward the user, and / or have a cross section that opens outward. Thus, recesses can refer to openings. Recesses can generally be beneficial in terms of air exchange and moisture evacuation, as well as compensating for temperature fluctuations. Recesses can also increase elasticity. This can provide a soft feel to the user and allow the cover to optimally adapt to the user or head lying on it, without compromising this effect with the fragile space-holding yarns often found in warp-knitted spacer fabrics.

[0095] The recesses formed on at least the outer surface of the upper layer may further provide and / or form a mesh structure of the cover fabric, i.e., the cover fabric may have a mesh structure, such as a honeycomb mesh structure, with recesses on at least the outer surface.

[0096] The recesses in the mesh structure and / or cover fabric can be arranged, for example, in a regular arrangement on the outer side of the cover fabric. In other words, the recesses can be arranged regularly and / or in a regular pattern. However, irregular arrangements, for example, arrangements forming a pattern, are also contemplated.

[0097] The recesses, for example outwardly opening recesses, are variable in terms of their geometry and can be, for example, circular, angular, oval, polygonal, elliptical or of any other shape in terms of their open cross section.

[0098] For example, the recesses may be honeycomb shaped. Alternatively or additionally, the recesses may have a circular, rounded, angular, rectangular, square, polygonal, triangular, elliptical, oval, and / or polygonal cross section.

[0099] According to one embodiment, the upper and / or lower layers of the cover fabric are at least partially made from natural fibers.

[0100] For example, the use of natural fibers, which may be included and / or knitted into the weft-knitted spacer fabric, may increase the sustainability and / or ecology of the mattress cover (hereinafter also referred to as "cover"), since the natural fibers may be derived from renewable raw materials. Natural fibers may also be characterized by high resilience and / or durability. In addition, natural fibers may result in a comfortable and soft feel for the user. Natural fibers may also be characterized by high skin compatibility, breathability, and / or odor neutrality. In addition, natural fibers may allow the mattress cover to be manufactured more cost-effectively.

[0101] According to one embodiment, the natural fibers of the cover or mattress cover or related cover fabric are animal hair fibers, wool fibers, cotton fibers, hemp fibers, eucalyptus fibers, bamboo fibers, linen fibers, wood fibers, viscose fibers, flax fibers, silk fibers, vegetable fibers, or combinations thereof. Such natural fibers can be characterized by increased substantivity, odor neutralization, skin compatibility, durability, and / or robustness compared to synthetic fibers.

[0102] According to one embodiment, the top layer, bottom layer, and / or one or more intermediate layers of the cover fabric have a weight percentage of natural fibers of approximately 2% to 99%, for example at least 5%, at least 10%, at least 15%, at least 20%, and / or at least 25%, relative to the respective layer or the entire cover fabric. Natural fibers of at least 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, or 75% are also contemplated.

[0103] According to one embodiment, the proportion, such as weight percentage and / or volume percentage, of natural fibers in the top layer relative to the respective layer or overall cover fabric is greater than the proportion, such as weight percentage and / or volume percentage, of natural fibers in the bottom layer and / or one or more middle layers. For example, the proportion in the top layer may be at least twice the corresponding proportion of natural fibers in the bottom layer and / or one or more middle layers.

[0104] According to one embodiment, the top layer consists substantially and / or almost entirely, e.g., entirely, of natural fibers, and the bottom layer, and optionally one or more intermediate layers, consist substantially and / or almost entirely, e.g., entirely, of synthetic fibers.

[0105] According to one embodiment, the upper and / or lower layers of the cover fabric are at least partially formed from textured twisted yarns, in particular multifilament yarns, such as polyester, polyethylene, polyamide, polyethylene, and / or polyamide yarns, which can provide a soft and comfortable feel.

[0106] According to one embodiment, the upper and / or lower layers of the cover fabric are at least partially made of monofilament yarns, in particular polyester yarns, smooth polyester yarns, polyethylene yarns, smooth polyethylene yarns, polyamide yarns, and / or smooth polyamide yarns. If the lower side of the cover fabric facing the mattress core or pillow core is made of monofilament yarns, the removal or insertion of the mattress core or pillow core can be made easier.

[0107] For example, a cover fabric made of weft-knitted spacer fabric is formed having at least two layers: an upper layer constituting the outer side, and a fabric layer constituting the inner or lower layer, preferably made of polyester fiber fabric, polyethylene fiber fabric, and / or polyamide fiber fabric.

[0108] The inner or lower layer can be, for example, a smooth fabric layer, which can be jacquard woven and / or, for example, patterned, on top of which a top layer of weft-knitted spacer fabric made of textured twisted yarns, in particular multifilament yarns, can be built outwards.

[0109] According to one embodiment, the cover fabric further comprises an intermediate layer which is at least selectively and / or at least partially knitted with the upper and / or lower layers, which can be used to give the cover fabric volume, which can additionally improve sleeping comfort.

[0110] According to one embodiment, the intermediate layer is formed from monofilament yarns, in particular polyester yarns, smooth polyester yarns, polyethylene yarns, smooth polyethylene yarns, polyamide yarns and / or smooth polyamide yarns.

[0111] According to one embodiment, the intermediate layer is at least partially formed from multifilament yarns, such as textured twisted multifilament yarns made of polyester yarns, polyethylene yarns, polyamide yarns, polyethylene yarns, and / or polyamide yarns.

[0112] According to one embodiment, the intermediate layer is at least partially made from natural fibers, which provides the advantages mentioned above for natural fibers.

[0113] According to one embodiment, the recess extends at least substantially through the thickness of the upper layer and possibly the intermediate layer. In particular, the recess can extend completely through the upper layer, so that the recess can form and / or represent an opening in the upper layer.

[0114] The recesses can extend, for example, at least substantially through the entire thickness of the upper layer. That is, the recesses can extend from the outer side to or close to the inner or lower layer, for example, to allow optimal climate control with regard to air and moisture exchange between the two sides of the cover fabric. In addition, the depth of the recesses can increase the softness of the upper layer of the weft-knitted spacer fabric, thus providing an improved feel.

[0115] The cover fabric can also be constructed in a three-layer structure with a top layer, a knitted middle layer, and a monofilament filler. This allows for high breathability and moisture permeability, while also stabilizing the weft-knitted spacer fabric and providing a desired tactile volume. The monofilament yarn can be, for example, at least partially made of polyester, polyamide, and / or polyethylene. However, other synthetic fibers can also be used for this purpose.

[0116] In order to give the outer-facing surface or outer side of the weft-knitted spacer fabric a particularly smooth and pleasant feel, the surface or outer side surrounding the recess can be constructed with finer stitches compared to other areas of the outer side.

[0117] According to one embodiment, the top layer has a weight proportion of 50% to 70%, in particular 55% to 60%, of the cover fabric, which studies have shown to be particularly beneficial in terms of comfort and microclimate regulation.

[0118] According to one embodiment, the lower layer has a weight proportion of 20% to 30%, in particular 25% to 30%, of the cover fabric.

[0119] According to one embodiment, the intermediate layer has a weight proportion of 10% to 20%, in particular 15% to 20%, of the cover fabric.

[0120] When fillers are used, optimum results in terms of air permeability, stabilization and volume have been determined at a weight percentage of 10% to 20%, especially 15% to 20%, of the middle layer of the cover fabric.

[0121] According to one embodiment, the cover fabric has a thickness of 250 g / m 2 ~300g / m 2 This allows the cover fabric to have the required durability, while at the same time making it easy to handle during manufacture and use, given its weight.

[0122] According to one embodiment, the cover fabric is rubberized, coated, and / or latexed on at least one side, e.g., the outer, inner, underside, and / or upper side, to prevent, e.g., moisture and / or water penetration.

[0123] According to one embodiment, the cover fabric is formed equally on all sides. In other words, the mattress cover can be formed equally on all sides, i.e., the upper side, the lower side and, if present, the longitudinal and lateral sides. However, in principle, it is also conceivable to form the different sides of the cover differently.

[0124] Designing all sides identically allows for particularly simple manufacture, in which case ventilation strips on the lateral and longitudinal sides, which are common in known covers, in particular mattress covers, can also be dispensed with due to the high breathability of the cover fabric.

[0125] According to one embodiment, the mattress, mattress cover or cover comprises an at least partly circumferential closure, in particular a zipper, which can be opened and closed to insert or remove the mattress core.

[0126] Additionally, handles can be sewn into the mattress cover to facilitate handling of the mattress and / or recliner furniture covered by the mattress cover.

[0127] The cover or mattress cover may further be washable at temperatures of, for example, 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.

[0128] A further aspect of the present disclosure relates to the use of a mattress core as described above and below for a mattress, reclining furniture, and / or a children's mattress.

[0129] A further aspect of the present disclosure relates to the use of a mattress as described above and below as a child's mattress.

[0130] Further features, advantages and possible applications of the present invention will become apparent from the following description of embodiments and drawings.

[0131] The drawings are only schematic and are not to scale. In the following description, when the same reference symbols are used in different figures, these indicate the same, equivalent, similar or similarly acting elements. [Brief explanation of the drawings]

[0132] [Figure 1] 1 is a schematic top view of an embodiment of a mattress core according to the present invention. [Figure 2] 1 is a perspective view of an embodiment of a mattress core according to the present invention. [Figure 3] 1 is a perspective view of an embodiment of a mattress core according to the present invention with the mattress insert element removed. FIG. [Figure 4] 1 is a schematic cross-sectional view of an embodiment of a mattress core according to the present invention. [Figure 5] FIG. 2 is a schematic diagram of a first embodiment of an air channel. [Figure 6] FIG. 10 is a schematic diagram of a second embodiment of an air channel. [Figure 7] 1 is a schematic diagram of a mattress with a cover. [Figure 8] FIG. 1 is a perspective view of a mattress having a cover placed over a mattress core. [Figure 9] FIG. 1 is a highly simplified partial top view of the exterior of the cover. [Figure 10] FIG. 2 is a schematic regional cross-sectional view of a cover fabric of the cover. [Figure 11] FIG. 10 is a detailed view of the closure of the cover. DETAILED DESCRIPTION OF THE INVENTION

[0133] FIG. 1 shows a schematic top view of an embodiment of a mattress core according to the present invention.

[0134] The mattress core 10 comprises a mattress frame element 11 and a mattress insert element 12. The mattress insert element 12 is removably disposed within the mattress frame element 11 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 base area and / or a cuboid shape. Here, the mattress insert element 12 is disposed in the recess 30 of the mattress frame element 11 such that its underside and four sides are in direct contact with or in contact with the exposed or outer surface (also referred to as the exterior) of the recess 30 and the four sides of the recess 30 of the mattress frame element 11. 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 a transverse direction 5 perpendicular to the longitudinal direction 7 and perpendicular 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.

[0135] The width / length ratio B / L of the mattress frame element 11 may be about 50%. The width / length ratio b / l of the mattress insert element 12 may be about 40%. The width / width ratio b / B is about 70% and the length / length ratio l / L is about 85%.

[0136] Both the mattress insert element 12 and the mattress frame element 11 include a plurality of air channels 13. The plurality of air channels 13 all have the same radius and are arranged in 20 parallel rows, each containing 10 air channels. The parallel rows have a linear shape. The plurality of air channels 13 are also arranged parallel to one another.

[0137] The mattress insert element 12 comprises a head section 14, a foot section 15, and a central section 16. Air channels are provided only in the central section. Neither the head section 14 nor the foot section 15 comprises air channels. The head and foot sections are identical and each occupy approximately 12.5% ​​of the total area of ​​the mattress insert element.

[0138] The mattress frame element 11 forms a step edge which completely surrounds the recess 30 and / or the mattress insert element 12 located therein.

[0139] 2 shows a perspective view of an embodiment of a mattress core 10 according to the present invention. Unless otherwise noted, the mattress core 10 of FIG. 2 has the same elements and features as the mattress core 10 of FIG.

[0140] The mattress insert element 12 is positioned flush in the recess 30 of the mattress frame element 11 in Figure 2. Flush here means that the upper sides of the mattress frame element 11 and the mattress insert element 12 both present a common plane, which also provides the lying surface for the mattress core. The common plane in this case does not include a sharp transition, i.e., no ridges or edges, between the mattress insert element 12 and the mattress frame element 11.

[0141] Figure 3 shows a perspective view of an embodiment of a mattress core 10 according to the present invention with the mattress insert element removed. Unless otherwise noted, the mattress core 10 of Figure 3 has the same elements and features as the mattress core 10 of Figures 1 and 2.

[0142] The recess 30 has an exposed or outer surface 31 and side surfaces 31, in particular four side surfaces. The recess 30 extends in at least one mattress frame element 11 from the outer or lying surface of the mattress core to the interior of the mattress frame element 11.

[0143] The mattress insert element 12 has a height h that can correspond to the depth of the recess 30. The height / length ratio h / l of the mattress insert element 12 is about 0.02%. The height / width ratio h / b of the mattress insert element 12 is 0.06%. The recess 30 has a width C.

[0144] The recess 30 and the mattress insert element may have corresponding shapes and geometries to allow the mattress insert element 12 to be received in the recess 30 in a non-slip manner. In particular, the recess 30 and the mattress insert element 12 may have complementary geometries.

[0145] Figure 4 shows a schematic cross-sectional view of an embodiment of a mattress core according to the present invention. Unless otherwise noted, the mattress core 10 of Figure 4 has the same elements and features as the mattress core 10 of Figures 1-3.

[0146] The mattress frame element 11 has an upper side 41, a lower side 42, and four side surfaces 43, as well as 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 the same, such 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, vertically, in particular perpendicular to the longitudinal direction 7 and the lateral direction 5 of the mattress core 10.

[0147] The air channels 13 in the mattress insert element 12 and the air channels 13 in the mattress frame element 11 are paired to form a common channel. All of the air openings or air channels 13 have a constant radius over their length.

[0148] 1-4, the air channels 13 may have a circular cross section and extend parallel to the vertical, however, the air channels 13 may also be angled relative to the vertical and / or have a different cross section, as described in detail above.

[0149] Figure 5 shows a schematic cross-sectional view of a first embodiment of an air channel 13 in a mattress core 10. Unless otherwise noted, the mattress core 10 of Figure 5 has the same elements and features as the mattress core 10 of Figures 1-4.

[0150] The air channels 13 are air channels inclined at an angle α in at least one mattress insert element 12 and / or mattress frame element 11. The angle α is 45°.

[0151] Figure 6 shows a schematic cross-sectional view of a second embodiment of air channels 13 of mattress core 10. Unless otherwise noted, mattress core 10 of Figure 6 has the same elements and features as mattress core 10 of Figures 1-5.

[0152] The air channel 13 is a stepped air channel in at least one mattress insert element 12 and / or mattress frame element 11. The stepped air channel 13 comprises an upright or vertical portion 610 and a flat or horizontal portion 611. The upright portion 610 extends perpendicularly and upright to the upper and lower sides of the mattress insert element 12 and / or mattress frame element 11. The flat portion extends horizontally or parallel to the upper and lower sides of the mattress insert element 12 and / or mattress frame element 11.

[0153] Figure 7 shows a schematic diagram of a mattress 500. The mattress has a mattress core 10, such as the mattress core 10 of Figures 1-6.

[0154] Additionally, the mattress 500 includes a cover 61 that completely surrounds the mattress core 10 .

[0155] The cover 61 is closed with a perimeter closure 62, particularly a zipper, which ensures that it does not open undesirably. The perimeter closure 62 is located on the underside of the mattress core or cover 61.

[0156] FIG. 8 shows a perspective view of a mattress 500 having a cover 61 placed over the mattress core 10.

[0157] The illustrative cover 61 or mattress cover 61 (or mattress protector cover 61) is shown fitted over the mattress core 10. The cover 61 forms a first lying surface on an upper side 71 and a second lying surface on an opposing lower side 72 for a user lying thereon.

[0158] The cover 61 is formed all around from the same cover fabric 70. The lateral transverse and longitudinal surfaces 73, 74 also merge, optionally without seams, into the upper and lower sides 71, 72. However, in other embodiments that deviate from this embodiment, the surfaces of the cover fabric 70 may be separated by seams and, if necessary, piping tape.

[0159] A circumferential closure 62 in the form of a zipper is sewn to the mattress cover 61 (or mattress protector cover 61) on the lateral faces 73 and longitudinal sides 74 for inserting and removing the mattress core 10. In addition, the lateral longitudinal faces 74 are provided with a plurality of handles 75 for lifting the mattress core 10 covered by the mattress cover 61 (or mattress protector cover 61), only one of which is shown by way of example.

[0160] As can be seen in cross section X of Figure 8, which shows the entire surface of the mattress cover 61 (or mattress protector cover 61), in Figures 9 and 10, the cover fabric 70 is formed with a weft-knitted spacer fabric 76, such as a three-dimensional weft-knitted spacer fabric, up to its outer side 77.

[0161] The cover fabric 70 comprises a honeycomb-like mesh structure having a regular, finely structured arrangement of outwardly opening recesses 78. The recesses 78 preferably have an outwardly facing round, rounded, elliptical, and / or oval cross-section, which may measure, for example, 2 mm to 4 mm in width and approximately 3 mm to 5 mm in length in the unstretched state.

[0162] The webs of material 81 made of the weft-knitted spacer fabric 76 present between the regularly arranged offset recesses 78 can be at least approximately equal in width.

[0163] The cover fabric 70 of the cover 61, in this case, is a three-layer weft-knitted spacer fabric. The three-layer weft-knitted spacer fabric has a top layer 91 that forms the outer side 77, a middle layer 92 that also forms the weft-knitted spacer fabric 76 and is knitted with the top layer 91, and an inner or bottom layer 93 that is knitted with the top layer 91 and / or the middle layer 92.

[0164] The top layer 91 can comprise monofilament yarns, such as smooth monofilament yarns, or multifilament yarns, such as textured twisted multifilament yarns. Similarly, the bottom layer 93 can comprise monofilament yarns, such as smooth monofilament yarns, or multifilament yarns, such as textured twisted multifilament yarns. Similarly, the middle layer 92 can be formed at least in part from monofilament or multifilament yarns.

[0165] One or more of the top layer 91, middle layer 92, and bottom layer 93 further contain and / or are at least partially formed from natural fibers, as described above. The natural fibers may be animal hair fibers, wool fibers, cotton fibers, hemp fibers, eucalyptus fibers, bamboo fibers, linen fibers, wood fibers, viscose fibers, flax fibers, silk fibers, plant fibers, or combinations thereof. Such natural fibers may be characterized by increased substantivity, odor neutrality, skin compatibility, durability, and / or robustness compared to synthetic fibers.

[0166] The top layer 91 further comprises a fine knit structure 94 on the outer side 77 that provides a soft feel to the surface.

[0167] In terms of thickness, the upper layer 91 in the advantageous embodiment shown is dimensioned to occupy at least 70% to 80% of the total thickness of the cover fabric 70 in order to make maximum use of the microclimatic advantages of the weft-knitted spacer fabric 76.

[0168] To allow maximum possible air circulation to the outside 77 and optimal moisture removal, the honeycomb-shaped recesses 78 extend substantially through the thickness of the top layer 91 and the middle layer 92, right up to the bottom layer 93. As a result, the recesses 78 give the cover fabric a high degree of flexibility and stretchability in the width direction at the same time. The elasticity in height creates softness, which can be defined by the filler material of the middle layer 91, depending on the desired degree of softness.

[0169] Depending on the application, it will be understood that the cover fabric 70 can be manufactured using all known spacer knitting methods, for example, on a circular knitting machine, as well as all known finishing processes, such as washing, bleaching, and shrinking processes following the knitting process.

[0170] Figure 11 shows a detailed view of the closure of the cover. The closure 62 is a closure that ensures against undesired opening. This closure is characterized in that its slider 121 is a zipper without a zipper or tag.

[0171] In addition, it should be noted that the terms "comprise" and "comprise" do not exclude other elements or steps, and that the indefinite article "eine" or "ein" does not exclude a plurality. Furthermore, it should be noted that features or steps described with reference to one of the above-mentioned embodiments can be used in combination with other features or steps of other of the above-mentioned embodiments.

Claims

1. A mattress core (10) for reclining furniture, in particular for a children's mattress, said mattress core (10) comprising: At least one mattress frame element (11); At least one mattress insert element (12), the at least one mattress frame element (11) comprises at least one recess (30) in at least one partial area of ​​the outer surface of the mattress core formed as a lying surface for the user, The at least one mattress insert element (12) is at least partially removably disposed in the at least one recess (30) of the at least one mattress frame element (11).

2. 2. A mattress core (10) according to claim 1, The at least one recess (30) is formed to correspond to the geometry of the at least one mattress insert element (12), and the at least one mattress insert element (12) is at least partially, in particular substantially completely, received in the at least one recess (30).

3. 2. A mattress core (10) according to claim 1, The at least one mattress insert element (12) is insertable into and / or removable from the at least one recess (30) of the at least one mattress frame element (11) via an outer surface of the mattress core (10) formed as a lying surface for a user.

4. 2. A mattress core (10) according to claim 1, The at least one recess (30) is designed such that the at least one mattress frame element (11) surrounds and / or encloses the at least one mattress insert element (12) along at least a portion of its periphery, in particular completely, the mattress core (10).

5. 2. A mattress core (10) according to claim 1, The mattress core (10), wherein the at least one mattress insert element (12) is received in the at least one recess (30) in a close fit and / or flush relationship.

6. 2. A mattress core (10) according to claim 1, The at least one mattress insert element (12) is received in the at least one recess (30) so that an outer side of the at least one mattress insert element (12) is flush with an outer side of the at least one mattress frame element (11).

7. 2. A mattress core (10) according to claim 1, The outer sides of the at least one mattress insert element (12) and the outer sides of the at least one mattress frame element (11) together form a lying surface for a user, a mattress core (10).

8. 2. A mattress core (10) according to claim 1, The at least one mattress insert element (12) is received in the at least one recess (30) so as to contact the at least one mattress frame element (11) on all outer sides except for the outer side of the at least one mattress insert element (12) intended as part of a lying surface for a user.

9. 2. A mattress core (10) according to claim 1, The at least one mattress insert element (12) is received in the at least one recess (30) in a non-slip manner.

10. 2. A mattress core (10) according to claim 1, The at least one mattress insert element (12) has a compression hardness of about 2 kPa to about 8 kPa, for example about 2 kPa to about 4 kPa.

11. 2. A mattress core (10) according to claim 1, The mattress core (10) wherein the at least one mattress insert element (12) comprises a hydrophobic, washable, and / or boilable foam.

12. 2. A mattress core (10) according to claim 1, A mattress core (10) wherein the at least one mattress insert element (12) and / or the at least one mattress frame element (11) comprises open-cell foam.

13. 2. A mattress core (10) according to claim 1, The mattress core (10), wherein the at least one mattress frame element (11) and the at least one mattress insert element (12) comprise a plurality of air channels (13).

14. 14. A mattress core (10) according to claim 13, The mattress core (10) is characterized in that 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) are arranged in a plurality of rows, in particular parallel to one another.

15. 14. A mattress core (10) according to claim 13, The plurality of air channels (13) of the at least one mattress frame element (11) and the at least one mattress insert element are paired to form a common channel.

16. 14. A mattress core (10) according to claim 13, The plurality of air channels (13) of the at least one mattress frame element (11) and the at least one mattress insert element (12) extend completely through the at least one mattress frame element (11) and the at least one mattress insert element (12), respectively.

17. 14. A mattress core (10) according to claim 13, The plurality of air channels (13) of the at least one mattress frame element (11) and the at least one mattress insert element (12) each have 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.

18. 14. A mattress core (10) according to claim 13, the at least one mattress insert element (12) comprises a head section (14), a foot section (15) and a middle section (16); The mattress core (10) wherein the plurality of air channels (13) are disposed only in the central portion (16).

19. A mattress (100), in particular a children's mattress (100), comprising: A mattress core (10) according to any one of claims 1 to 18; a cover (61), The cover (61) completely encloses the at least one mattress frame element (11) and the at least one mattress insert element (12), forming a mattress (100).

20. 20. A mattress (100) according to claim 19, The cover (61) comprises a cover fabric (70) having at least one upper layer (91) and at least one lower layer (93); The upper layer (91) and the lower layer (93) are at least partially arranged one above the other, At least the top layer (91) of the cover fabric (70) is formed from a weft-knitted spacer fabric, for example a three-dimensional weft-knitted spacer fabric; A mattress (100) in which a plurality of cover fabric recesses (78) are formed on at least the outer side (77) of the upper layer (91) opposite the lower layer (93).

21. 20. A mattress (100) according to claim 19, The mattress (100) is provided with a closure (62) that ensures that the cover (61) does not open undesirably.

22. Use of a mattress core according to claim 1 for a mattress, in particular for a children's mattress.

23. 20. Use of a mattress according to claim 19 as a child's mattress.

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