EP3574806A1 - Mattress with different hardness zones - Google Patents

Abstract

The invention relates to a mattress which is divided into several zones (100, 200, 300, 400, 500) of different hardness in the longitudinal direction. According to the invention, at least one zone (200) of the several zones (100, 200, 300, 400, 500) is additionally divided into several sub-zones of different hardness in the transverse direction of the mattress.

Description

The present invention relates to a mattress with zones of different hardness.

Mattresses are known as cushions for recliners and bedsteads and are for convenience by allowing a recumbent person a soft bearing. Originally mattresses were produced with homogeneous or substantially homogeneous compliance or over the surface of uniform or substantially uniform hardness. This was originally desirable as well, and some effort was made to achieve as even hardness as possible over the surface of the mattress. For this purpose, for example - similar to the suspension of a chair - a variety of springs spring clamped between wire mesh and used a pad or sheath with a filling of fabric, fleece, wool, horsehair or the like. This type is still widespread as a spring mattress, but requires a comparatively thick edition to cushion pressure points of the springs and wire mesh. A further development is the pocket spring mattress, in which a plurality of springs, which are sewn individually into pockets made of fleece or fabric or the like, is provided. Foam mattresses have also come into use with the spread of foams, for example as full-foam mattresses, but also with cavities for better air circulation and reduction in weight. In this case, a wide variety of foams are used such as cold foam, comfort foam, latex foam, visco foam, etc, whose properties are known in the art and should not be further explored here. Combinations have also been developed, for example with several layers of different materials.

With increasing awareness of ergonomic and orthopedic needs, the importance of a natural and relaxed body posture has been recognized in sleep, and it has been widely used to equip a longitudinal mattress with lying areas of varying hardness to better conform to the body shape. For example, a typical 7-zone mattress has as a first zone, viewed from one end in the longitudinal direction, a rather hard head zone as a support region for the head, and a soft shoulder zone as a second zone, which allows the shoulder belt to sink in, in particular, during back and side sleep It is said that the third zone is a harder lordosis zone, which in particular supports the lumbar spine (lordosis) well and should always keep the spine in a relieved position, and as a fourth zone a medium-hard pelvic zone, which should allow the pelvis to sink. This is followed by a fifth, sixth and seventh zones corresponding to the third, second and first zones, allowing the mattress to be used in each direction. The hardness of the pelvic area, the lumbar area and the shoulder area are coordinated so that the pelvis and shoulder sink at different depths, so that the spine is as straight as possible and parallel to the floor when lying on its side. The properties of the individual zones are set by different combinations of material selection and structural design. In a five-zone mattress, the head zone can be omitted. Instead of a symmetrical repetition of the lordosis, shoulder and possibly head zone in the longitudinal direction may also be provided a leg zone.

However, it is difficult to form the individual zones in such a way that the spine and the limbs are optimally supported in every sleeping posture (lateral, supine or prone position). Therefore, special mattresses have been developed for side, back and abdominal sleepers as well as aids such as special pillows. When supine also often results in a problem that is referred to as "shoulder flap effect". As a result, the supine thoracic spine descends deeper into the mattress than the shoulders, as the shoulders, which are relatively mobile and relatively lighter, are pushed forward by the spring action of the mattress. As a result, the pressure on the trunk increases, muscles can cramp, and breathing can be impaired, which can lead to snoring and in extreme cases to sleep apnea. A reversed problem is particularly observed in prone women, who often rest only in the shoulder area of the mattress with the breasts (the breastbone then hangs almost "in the air"). This increases the pressure on the breasts, which can also affect well-being and relaxed sleep.

Object of the present invention is to provide a mattress, which is better adapted to a variety of sleeping postures and which can counteract the Schulterklappeffekt supine and / or the increased pressure on the breasts in particular of women in prone position.

The object is achieved at least in some aspects by the features of independent claim 1. Advantageous developments and preferred embodiments are the subject of the dependent claims.

A mattress according to a basic aspect of the invention is divided longitudinally into several zones of different hardness. According to the invention, at least one zone of the plurality of zones is additionally subdivided in the transverse direction of the mattress into a plurality of partial zones of different hardness.

The longitudinal direction of a mattress is in the sense of the invention a direction from a head end to a foot end of the mattress, a transverse direction a direction orthogonal to the longitudinal direction in the plane of the lying surface of the mattress. For the purposes of the invention, hardness can be understood to mean an opposite of a compliance under a unit surface load. A zone or partial zone in the sense of the invention is an area in which the hardness is substantially uniform, wherein a certain waviness of hardness due to surface texture or grid-like arranged individual elements for the conceptual and actual assignment to one and the same zone or sub-zone is equally harmless as a smooth transition of hardness in the edge region of the zone or sub-zone or to an adjacent zone or sub-zone. By zoning according to the invention in the transverse direction can be created on a lying position of a person resting on the mattress extremely fine lying areas.

If the sub-zones comprise at least one support zone of a first hardness and on both sides subsequent Eininkzonen a second hardness, which is less than the first hardness, for example, in the supine or prone position support in the area of the spine can be provided, which on both sides of the spine located areas such as shoulder blades or breasts can sink deeper into the sinking areas, whereby there the formation of pressure points can be avoided and the pressure distribution is more uniform overall and also a shoulder folding effect can be counteracted. On the other hand, in a lateral position, the body of the person can naturally roll on the side of a sinking zone and the shoulder area sink into the sinking zone, whereby in this position the Spine stay straight and the pressure distribution along the flank of the body can remain uniform. These effects may already occur if the second hardness is, for example, at least 20% less than the first hardness.

For a single person mattress, the at least one support zone may be exactly one support zone centered or approximately centered in the transverse direction of the mattress. In other words, the support zone extends in the transverse direction of the mattress by a certain width on both sides of a longitudinal central axis of the mattress and in the longitudinal direction by a length which corresponds approximately to the length of the support zone. For a mattress designed for two persons, the at least one support zone may comprise two support zones. The two support zones may advantageously be arranged transversely about 20% to 35%, preferably about 25%, away from a lateral edge of the mattress. In that case, a separating zone in the transverse direction of the mattress can also be arranged centrally or approximately centrally between the two support zones. Such a separation zone can also provide a separate lying area for each of the two persons. Therefore, the separation zone may have a third hardness that is greater than the second hardness (the sinking zones). Preferably, the third hardness may be less than or equal to the first hardness (of the two support zones). In any case, the third hardness of the separation zone compared to the second hardness can be adjusted so that prevents unwanted rolling of the sleeper in sleep, or at least made difficult, but a deliberate nestling without noticeable resistance is possible. With sufficiently wide beds, the third hardness can also be adjusted so that the separation zone can also serve as a support zone for a third person, such as a child who seeks the security of the parents while sleeping.

The at least one support zone can each have a bar-shaped foam element extending in the longitudinal direction of the mattress. The hardness of foam elements can be adjusted very easily. Thus, even by different hardness of foams in the support zone and in the Einsinkzonen the desired ratio of sinking depths can be easily realized, even if the Einsinkzonen are made of a simple foam block.

Another advantageous way to adjust the hardness of the Einsinkzone is to provide soft spacer elements in the Einsinkzone. These can be advantageously made of a soft foam. The spacer elements may be distributed across the length and width planes with grid-like spaces therebetween. It can be in the spaces between the Spacer elements and spring elements may be arranged. The spring elements may advantageously be made of plastic.

In an optional development, the sub-zones may further comprise two edge zones which are arranged on the side edge in the transverse direction of the mattress and whose hardness at least corresponds to that, preferably approximately exactly that which corresponds to at least one support zone. In this way, a limitation against unintentional rolling down of the mattress can be created.

If the edge regions in the longitudinal direction of the mattress extend beyond the at least one zone, preferably over the entire length of the mattress, a bond between the zones can also be improved by way of this.

The at least one zone may comprise an area corresponding to a support area of the chest and shoulders of a person resting on the mattress. This creates a dedicated measure against the above-mentioned Schulterklappeffekt and allows the described adaptation to changing reclining positions. Accordingly, the support zone may comprise an area corresponding to an abutment region of the supine thoracic spine or prone sternum of the person resting on the mattress, and the immersion zones may include areas surrounding a support area of the shoulder blades and supine shoulders or prone chest or shoulders on the mattress resting person corresponds.

Advantageously, the hardnesses of the support zone and the sinking zones can be coordinated so that in supine and / or prone position of the person resting on the mattress shoulders take a natural position to the trunk, and / or coordinated so that in prone position on the Mattress resting person adjusts an even pressure distribution between breasts and breastbone.

The hardness of the support zone (s) and the other zones may be coordinated so that in supine and / or prone position of resting on the mattress person adjusts a uniform pressure distribution over the course of the spine and / or a natural, relaxed curvature of the spine , and / or the hardness of Eininkzonen and the other zones may be coordinated so that in lateral position of the person resting on the mattress a uniform pressure distribution over the course of the flank and / or sets a natural, horizontal straight alignment of the spine.

The hardness of the zones and sub-zones may be tuned with respect to a selected range of body weight of a person resting on the mattress.

So far, mattresses are basically one-dimensional zoned (head to toe). However, this does not sufficiently take into account the complex structure of the back and the respective lying positions. The differentiation between spine and shoulder blades according to the invention allows significantly better zoning. Thus, a zoning is possible, which provides optimal comfort in all sleeping positions. Due to the construction, the sleeper is always guided in the right position so that the comfortable position is always guaranteed. A conceivable zoning in the area of the suspension would not be equally effective. For comfort, it is advantageous if the zoning takes place in the mattress, as this is responsible for the fine-tuning of comfort. If such a fine mechanism in the suspension, it would be neutralized by a (standard zonierte) mattress again.

Figur 1

eine perspektivische Explosionsdarstellung einer Matratze gemäß einem bevorzugten Ausführungsbeispiel;

Figur 2

eine Längsschnittdarstellung der Matratze des Ausführungsbeispiels;

Figur 3

eine Querschnittsansicht der Matratze des Ausführungsbeispiels, entlang einer Linie III-III in Fig. 2 geschnitten und in Pfeilrichtung III gesehen;

Figur 4

eine Feder in der Matratze des Ausführungsbeispiels in perspektivischer Ansicht; und

Figur 5

ein Querverbindungselement in der Matratze des Ausführungsbeispiels in einer Seitenansicht.

The invention will be described below with reference to at least one preferred embodiment with reference to the accompanying drawings. The drawings show in

FIG. 1

an exploded perspective view of a mattress according to a preferred embodiment;

FIG. 2

a longitudinal sectional view of the mattress of the embodiment;

FIG. 3

a cross-sectional view of the mattress of the embodiment, taken along a line III-III in Fig. 2 cut and seen in the direction of arrow III;

FIG. 4

a spring in the mattress of the embodiment in perspective view; and

FIG. 5

a cross-connection element in the mattress of the embodiment in a side view.

A mattress according to a preferred embodiment of the present invention has a head end 20 and a foot 40. The mattress is divided longitudinally into a first zone or head zone 100, a second zone or shoulder zone 200, a third zone or lordosis zone 300, a fourth zone or pelvic zone 400, and a fifth zone or leg zone 500 corresponding to a leg region ( FIGS. 1 . 2 ). The shoulder zone 200 is in the transverse direction of the mattress into a first partial zone or a support zone 210, two partial zones or sinking zones 220 which adjoin the first partial zone 210 on both sides, and two third partial zones or edge regions 230, which laterally adjoin the second partial zones Connect subzones 220, subdivided ( Fig. 3 ).

The head zone 100 is a zone which corresponds to a support area of a head of a person resting on the mattress (not shown in detail in the figure). The shoulder zone 200 is a zone that corresponds to a support area of the person's chest and shoulders. The Lordosenzone 300 is a zone that corresponds to a support area of a lumbar spine (lordosis) of the person. The pelvic zone 400 is a zone which corresponds to a support area of a pelvis of the person. The leg zone 500 is a zone that corresponds to a support area of the person's legs. The support zone 210 is a partial zone, which corresponds to a support region of the thoracic spine in the supine position or the sternum of the prone position of the person. The sinking zones 220 are partial zones that correspond to a support region of the shoulder blades and shoulders in the supine position or breasts and shoulders in the prone position of the person. The edge zones 230 are sub-zones, which form a marginal boundary of the mattress. The edge zones 230 are formed by an edge bar 7, which extends beyond the shoulder zone 220 over the entire length of the mattress and thus in particular in the longitudinal direction of the mattress.

The hardnesses of the support zone 210 and the Einsinkzonen 220 are coordinated so that in supine and / or prone position of the person resting on the mattress shoulders take a natural position to the trunk, and are also coordinated so that in prone position on the mattress resting person sets an even pressure distribution between breasts and breastbone. The hardnesses of the support zone and the other zones are further coordinated so that in supine and / or prone position of resting on the mattress person adjusts a uniform pressure distribution over the course of the spine and a natural, relaxed curvature of the spine. Furthermore, the hardnesses of the sinking zones and the other zones are coordinated so that in Side position of resting on the mattress person adjusts a uniform pressure distribution over the course of the flank and a natural, horizontal straight alignment of the spine. Since the body dimensions, growth forms and weight distribution are individually different from person to person, the choice and coordination of the hardness of the zones and sub-zones to each other can always be only a (best) approximation and may require compromise the individual requirements. For individualization, the hardnesses of the zones and partial zones can be matched with regard, for example, to a selected area of a body weight of a person resting on the mattress.

For realizing the above-mentioned characteristics, the mattress according to the present embodiment has the following structure.

The mattress has two cover plates 1, 1, which also define a total length L and a total width B of the mattress ( Fig. 1 ). The cover plates 1, 1 are molded foam elements, which are smooth on an inner side in the height direction of the mattress and profiled on an outer side in the height direction of the mattress. The profiling of the cover plates 1, 1 is formed so that in the region of the head zone 100, the Lordosenzone 300 and the leg zone 500 are provided cross-like notches and in the region of the shoulder zone 200 and the pelvic zone 400 each have a flat depression is provided, in which a shoulder insert 11 and a pool insert 12 used and bonded to the cover plate 1, 1.

Between the cover plates 1, 1, three sandwich constructions 2, 3, 4 are arranged from the head end 20 to the foot end 40 of the mattress, each cover about 1/3 of the length L and extend over the entire width B. The first sandwich construction 2, which is arranged near the head end 20, has a lower plate 21, a top plate 25 and, between them, a plurality of spacer elements 22, 23, 24, a longitudinal bar 8 and a plurality of shoulder springs 5. The second sandwich construction 3, which is arranged in a central region between the head end 20 and the foot end, has a lower plate 31, a top plate 35 and, between them, a plurality of spacer elements 32a, 32b, 33, 34, a transverse bar and a plurality of pelvic springs 6. The third sandwich construction 4, which is arranged near the foot end 40, a lower plate 41, has a top plate 45 and, between them, a plurality of spacer elements 42, 44 and a leg part 10. The lower plates 21, 31, 41 and upper plates 25, 35, 45 extend over the entire width B of the mattress. The spacer elements 22, 23, 24, 32a, 32b, 33, 34, 42, 44 and the leg plate 10 are set back from the lateral edge of the mattress by a distance W7. Of the remaining cross section of the width W7 is filled by the side bar 7, which extends over the entire length L of the mattress.

The lower plate 21 and the spacer elements 22, 23, 24 of the first sandwich construction 2 are formed by a single molded foam element, ie in one piece from a single monolithic foam block. The headend-side spacer elements 22 and foot-end-side spacer elements 24 of the first sandwich construction 2 are each arranged in a single row in the transverse direction of the mattress, and the middle spacer elements 23 of the first sandwich construction 2 are arranged in a matrix. At intersections of lattice-like clearances left free by the spacer elements 22, 23, 24 of the first sandwich construction 2, the shoulder springs 5 are arranged, except for the transversely intermediate space. In the intermediate space kept free by shoulder springs 5 in the middle region in the transverse direction of the mattress, the longitudinal bar 8 is arranged and glued to the lower plate 21 of the first sandwich construction 2. The longitudinal beam 8 extends in the longitudinal direction of the mattress towards the foot end 40 beyond the lower plate 21 of the first sandwich construction and into a space of a first row of the head end side spacer elements 32a of the second sandwich construction 3 (see below).

The lower plate 31 and the spacer elements 32a, 32b, 33, 34 of the second sandwich construction 3 are formed by a single molded foam element. The head-end spacer elements 32a, 32b and foot-side spacer elements 34 of the second sandwich construction 3 are each arranged in a single row in the transverse direction of the mattress, and the middle spacer elements 33 of the first sandwich construction 3 are arranged in a matrix. Between the rows of the head end-side spacer elements 32a, 32b of the cross bar 9 is inserted and adhered to the lower plate 31 of the second sandwich construction 3. At nodal points of lattice-like spaces left free by the spacer elements 32b, 33, 34 of the second sandwich construction 3, the pelvic springs 6 are arranged.

The lower plate 41 and the spacer elements 42, 44 of the third sandwich construction 4 are formed by a single molded foam element. The head-end-side spacer elements 42 and foot-end-side spacer elements 44 of the third sandwich construction 4 are each formed by a survey extending continuously in the transverse direction of the mattress. Between the spacer elements 42, 44 of the third sandwich construction 4, the leg part 10 is inserted and bonded to the lower plate 41.

The top plate 25 of the first sandwich construction 2 is placed on the spacer elements 22, 23, 24 and the longitudinal beams 8 and bonded by means of an adhesive 14 with these. The top plate 35 of the second sandwich construction 3 is placed on the spacer elements 32a, 32b, 33, 34 and the transverse bar 9 and bonded by means of an adhesive 14 with these. The top plate 45 of the first sandwich construction 4 is placed on the spacer elements 42, 43, 44 and adhesively bonded thereto by means of an adhesive 14.

As far as the lower plates 21, 31, 41 and arranged above components are formed in the present embodiment by a single molded foam element, this is purely exemplary and can also be solved structurally or manufacturing technology differently, so in embodiments, for example, above the lower plates 21, 31, 41 arranged components may be foamed in a further manufacturing step or separately prepared and adhered.

In further embodiment variants, the foot-end-side spacer elements 24 of the first sandwich construction 2 with the respectively adjacent first head-end-side spacer elements 32a of the second sandwich construction 3 can each form a single spacer element which is part of the first sandwich construction 2 and overlaps in the region of the second sandwich construction 3 or part of the second Sandwich construction 3 is and overlaps in the area of the first sandwich construction 2.

The longitudinal beam 8, the crossbar 9 and the leg part 10 are glued in the present embodiment with the respective lower plates 21, 31, 41. In embodiments, this bonding can be omitted, as far as these components 8, 9, 10 are held by clamping action between the respective spacer elements 22, 23, 24, 32a and 32a, 32b and 42, 44.

In the present embodiment, the components of the sandwich constructions 2, 3, 4 are not glued along their vertical abutment surfaces in order to avoid stresses and to ensure the greatest possible mobility. In embodiments, selected abutment surfaces may be glued in the vertical direction, for example, those between the foot end side spacer elements 24 of the first sandwich construction 2 with the respective adjacent first header side spacer elements 32a of the second sandwich construction 3, if necessary for reasons of stability.

The lower plates 21, 31, 41 are glued by means of the adhesive 14 with the lower cover plate 1, equally the upper plates 25, 35, 45 are glued by means of the adhesive 14 with the upper cover plate 1. The side bars 7 may be glued between the top plates 21, 31, 41 and the bottom plates 25, 35, 45 or only be used loosely.

The order of bonding of the individual components and assemblies will be selected according to practicability and other circumstances. For example, first the cover plates 1, 1 can be prepared with inserts 11, 12, then the sandwich constructions 2, 3, 4 prepared with all items and glued to the cover plates 1, 1 and finally the side bars 7 are used. Alternatively, a composite of the sandwich structures 2, 3, 4 can be made with the side bars 7 and then bonded to the cover plates 1, 1. Finally, even after preparing the cover plates 1, 1, first the lower plates 21, 31, 41 glued to the lower cover plate 1, then the separately provided components including the springs 5, 6, the beams 7, 8, 9 and the leg part 10 on the Lower plates 21, 31, 41 set and possibly glued, then the top plates 25, 35, 45 are glued and finally the top cover plate 1 are glued.

A mattress is thus subdivided in the longitudinal direction into a plurality of zones 100, 200, 300, 400, 500 of different hardness, wherein one of the zones, namely the shoulder zone 200, is additionally subdivided into several subzones 210, 220, 230 of different hardness in the transverse direction of the mattress ( FIGS. 1-3 ). The position of the shoulder zone 200 is marked by the shoulder insert 11 and the position of the pelvic zone 400 is marked by the pelvic insert 12, while the head zone 100 extends from the head end 20 to the shoulder zone 200, the lordosis zone 300 between the shoulder zone 200 and the pelvic zone 400 extends and the leg zone 500 extends from the pelvic zone 400 to the foot 40. Further, the support zone 210 is defined by the longitudinal beam 8, the edge zone 230 is defined by the edge beam 7 and the sinking zone 220 corresponds to the area between the support zone 210 and the edge zone 230, in which the shoulder springs 5 are located.

Constructively, the head zone 100 is realized by the spacers 22 of the first sandwich construction 2. These spacers 22 are elongate in length, the the length of the head zone 100, formed and are arranged in a row in the transverse direction of the mattress between the lower plate 21 and top plate 25, so that there are elongated gaps between the spacers 22. The spacers 22 are, like all other spacers 23, 24, 42, 44 and the top and bottom plates 21, 25, 41, 45 of the first and third sandwich construction 2, 4 and the side bars 7 made of a medium-hard foam, in the embodiment the specification EvoPoreVHRC 4746. In conjunction with the cover plates 1, 1, which are made of a slightly firmer foam (in the embodiment of the specification EvoPoreVHRC 4322), and with the notched design of the surface of the cover plate 1 is a good support for the head at pleasant feeling of bearing.

In the shoulder zone 200, the longitudinal bar 8 arranged centrally in the transverse direction of the mattress essentially defines the support zone 210 for the thoracic spine (in supine position) or the sternum (in prone position) of the person resting on the mattress. The longitudinal beam 8 is made of a harder foam, in the embodiment of the specification EvoPoreHRC 150p. The areas adjacent to the longitudinal bars 8 with the matrix-like arranged shoulder springs 5 form the sinking zones 220 for the shoulder blades with shoulders (in supine position) or the breasts with shoulders (in prone position) or the shoulders (in lateral position) of the person. The shoulder springs 5 have a bottom plate 51, a top plate 52 and interposed spring elements 53 ( Fig. 4 ). The shoulder springs are made entirely of a plastic, in the exemplary embodiment of the specification KHMS1.1.2.1-12-42-12. They thus have a hardness of 55 Shore D according to DIN EN ISO 868 and DIN ISO 7619-1 or a spring strength of 315 kgf / cm ² . The sinking zones 220 with the spacers 23 and shoulder springs 5 have a lower overall hardness, in particular at least 20% lower hardness than the support zone 210. In the supine position, the thoracic spine is well supported by the support zone 210 with this dimensioning, while the shoulder blades can sink laterally into the sinking zones 220. As a result, a shoulder flap effect can be effectively prevented. If the person turns to one side, the body automatically rolls in the direction of one of the sinking zones 220, where the shoulder can sink in deeply due to the small support surface, so that an unpleasant or even harmful high contact pressure in the shoulder area is avoided, the shoulder is not compressed and the spine stays straight. In the prone position, the sternum is well supported by the support zone 210, while the breasts in particular of women laterally in the sinking zones 220 more can sink. This can make you uncomfortable high pressure on the breasts and overstretching of the rib cage can be effectively prevented.

Thus, the first sandwich construction 100 essentially comprises the head zone 100 and the shoulder zone 200.

The lordosis zone 300 is essentially formed by the transverse bar 9 with the spacer elements 32a, 32b adjoining on the head end side and foot end side. The spacers 32a, 32b, like all other spacers 33, 34, and the top and bottom plates 31, 35 of the second sandwich construction 3 are made from a medium-hard foam, in the embodiment of the specification EvoPoreHRC 190p. The crossbar 9 itself is made of a harder foam, in the embodiment of the specification EvoPoreHRC 250c.

The pelvic zone 400 is essentially formed by the pelvic springs 6 arranged in the manner of a matrix. The pelvic springs 6 have a substantially similar structure as the shoulder springs 5, but are made of a different plastic, in the embodiment of the specification KHMS1.1.1.1-21-71-21. The basin zone 400 with the spacers 33 and pelvic springs 6 have a higher overall hardness than the sinking zones 220 of the shoulder zone 200, but a lower hardness than the lordosis zone 300. As a result, the pelvis can well sink into the pelvic zone 400, while the lumbar spine is well supported by the lordosis zone 300 and can set a natural curvature of the lumbar spine especially in the back and side position. The notched shape of the top of the cover plate 1 in the lordosis zone 300 ensures, despite the higher resistance to support for a soft feeling.

Thus, the second sandwich construction 3 essentially comprises the lordosis zone 300 and the pelvic zone 400.

The third sandwich construction 3 essentially forms the leg zone 500. The leg part 10 used here is made of a suitable foam, in the present embodiment of the specification EvoPoreHRC 140c. The lattice-like notched surface structure of the cover plate 1 also ensures a pleasantly soft feeling.

The shoulder insert 11 and the pelvic insert 12 are made of a comparatively dense foam, in the exemplary embodiment of specification SAF 4515. The The effect of transverse zoning in the shoulder zone 200 can be aided by the shaping of the shoulder inserter 11 by providing a slight indentation in the region of the sinking zones 220 ( Fig. 1 ). The basin insert 12 has a flat surface.

In alternative embodiments, a repetition of the pelvic, lordosis, shoulder and head zones, which is symmetrical in the longitudinal direction of the mattress, may be provided instead of a leg zone.

In summary, the hardnesses of the support zone 210 and the Einsinkzonen 220 are coordinated so that in supine and / or prone position of resting on the mattress person shoulders occupy a natural position as possible to the trunk, and are also coordinated so that in the prone position on the mattress resting, especially female person sets the most even pressure distribution between the breast and breastbone. Furthermore, the hardnesses of the support zone 210 and the other zones, in particular the Lordosenzone 300 and the pelvic zone 400, coordinated so that supine and / or prone position of resting on the mattress person as uniform as possible pressure distribution over the course of the spine and a as natural, relaxed curvature of the spine sets, and finally the hardness of Einsinkzonen 220 and the other zones 100, 300, 400, 500 coordinated so that in lateral position of resting on the mattress person as even pressure distribution over the course of Flank and a natural, horizontal straight alignment of the spine sets.

The hardnesses of the zones 100, 200, 300, 400, 500 and the subzones 210, 220, 230 may be differently adapted for persons of different physique, in particular of different body weight.

To improve the handling of the mattress cross-connecting elements 13 are provided, which extend over the width B of the mattress ( Fig. 5 ). The cross-linking elements 13 each have an elongate central part or tension belt 131 which extends over the entire width of the mattress, and two end-side loops 132. The tension straps 131 are respectively in aligned slots on the top of spacer elements (here a series of the middle spacer elements 23 of the first sandwich construction 2 and the head end spacer element 42 of the third sandwich construction 4) and the top of the Side bar 7 is inserted so that the loops 132 protrude laterally. This serves the purpose that a sheath (not shown in detail) can be fixed on both sides by means of carabiners. The suspension on the inside of the case takes place on the back of the handles. This keeps the case in place, even when the mattress is turned. Normal covers warp and "spin" over time. With the cross-connection elements 13 this is excluded, and the shell remains dimensionally stable.

In a practical implementation, the mattress according to the invention may for example have the following dimensions: Overall length: L = 2000 mm Overall width: B = 890 mm Overall height: H = 220 mm Height of the cover plates 1: H1 = 47.5 mm Height of depositors 11, 12: H11 = H12 = 30 mm Length of inserts 11, 12: L11 = L12 = 360 mm Height of sandwich constructions 2, 3, 4: (H - 2xH1) = 125 mm Width of the side bar 7: W7 = 50 mm Height of the side bar 7: H7 = 78 mm Width of the longitudinal beam 8: W8 = 60 mm Length of the longitudinal beam 8: L8 = 450 mm Width of crossbeam 9: W9 = 60 mm Length of the leg part: L10 = 443 mm Distance of cross-connection elements 13: X13 = 912 mm

The mattress described above was compared under laboratory conditions by means of a sensor mat with a conventional, commercially successfully sold mattress in the qualitative use test. The above-described effects of the significant reduction of pressure points in dorsal, lateral and prone positions could be demonstrated. The weight distribution made the effect visible and noticeable over the entire lying area. For the dorsal dorsal there is a support of the spine by the longitudinal bar (back support) 8 while relieving the shoulder blades by the soft elements (shoulder springs 5, spacer elements 23). As a result, a reduction of the Schulterklappeffektes and better lung relief can be found. Tension in the neck can be avoided. For the side sleeper, the position of the shoulder joint in the natural behavior is always in the particularly soft Einsinkzone 220. This provides a relief of the shoulder area in avoiding pressure points on Shoulder joint. For the abdominal dormant (especially women) there is a support of the sternum in prone position by the longitudinal bar 8, whereby a reduction of the hollow cross can be achieved. At the same time, a pressure relief of the breast through the soft Einsinkzone 220 a. Generally, tensions in the neck area are avoided and the shoulder muscles are relieved.

The present invention is not limited to the illustrated and described embodiment. There are in the field of claims varied modifications and variants conceivable.

In the exemplary embodiment, for example, exactly one support zone 210 is provided, which is arranged in the transverse direction in the middle of the mattress. This is useful in narrower mattresses up to a total width B of about 120-140 cm, which are designed for one person, meaningful. For wider mattresses having a total width B from 120-160 and designed for two persons, two support zones 210 may be provided which will transversely remove about 20% to 35%, preferably about 25%, from a side edge of the mattress can be arranged. The exact position of the support zones 210 from the edge of the mattress can be optimized, for example, to the extent that two persons who face each other in a lateral position in the then intermediate sink-in zone 220 still find sufficient space. Possibly. a separating zone in the middle can be provided, which prevents or impedes unwanted rolling of the two persons together. The separation zone is for this purpose harder than the sinking zones 220, but may be less hard than the two support zones 210.

In the exemplary embodiment, furthermore, the edge bar 7 is made of the same material as the spacer elements 22, 23, 24 of the first sandwich construction and therefore just as hard. Optionally, the edge beam 7 may also be harder so that the edge zone 230 is harder than the sink-in zone 220 and thus may prevent inadvertent lateral roll-down.

Furthermore, in the exemplary embodiment, the sinking zones 220 and the basin zone 400 are realized by spacer elements and springs arranged therebetween. Alternatively, the sink-in zones and / or the basin zone may be made of a soft foam block.

In the exemplary embodiment, the shoulder zone 200 is provided with a transverse zoning. In further developments, other zones may also have a transverse zoning according to the invention presented here. In particular, for example, for persons with a particularly bulky waist the lordosis zone 300 laterally of the middle softer than in the middle, to avoid that by the comparatively hard lumbar support (crossbar 9), the spine is pushed in a lateral position upwards and so a convex lateral Curvature of the spine stops. At present, transverse zoning is preferred only in the shoulder zone.

In the exemplary embodiment, the shoulder springs 5 and pelvic springs 6 are designed as plastic springs. Alternatively, other materials such as foam, latex, pocket springs or others may be substituted instead. Also, the back support or the support zone 210 may, instead of the made of a foam longitudinal beam 8 by other materials or constructions such as latex, feathers (plastic springs or pocket spring or others) or others whose hardness according to the invention is tuned to the hardness of Einsinkzone be realized.

The dimensions mentioned are of course completely exemplary. Depending on the width of the mattress more shoulder springs 5 and 6 pelvic springs can be used in the transverse direction.

The selection of the specific foams and their specifications for the areas of different hardness, which are mentioned in the exemplary embodiment, is completely exemplary. The specifications of the foams designated "EvoPore ..." are produced by FoamPartner. Of course, comparable foams from other manufacturers can be used. The design and tuning of the hardness ranges can be varied within wide limits by selecting the foam and spring specifications, as far as the effects of the invention are achieved.

List of reference numbers

1

cover plate

2

First sandwich construction (head / shoulder)

3

Second sandwich construction (loin / pelvis)

4

Third sandwich construction (legs)

5

shoulder feather

6

Beck spring

7

edge beam

8th

Longitudinal bar (back support)

9

Crossbar (lumbar support)

10

leg part

11

Schulte clean Leger

12

Beck depositors

13

Cross connection element

14

adhesive

15

label

21

lower plate

22

head end spacer element

23

middle spacer element

24

foot end spacer element

25

top plate

31

lower plate

32a, 32b

head end spacer element

33

middle spacer element

34

foot end spacer element

35

top plate

41

lower plate

42

head end spacer element

44

foot end spacer element

45

top plate

51

baseplate

52

headstock

53

spring element

100

Header (First Zone)

131

Middle section (tension belt)

132

loop

200

Shoulder area (second zone)

210

Support zone (first subzone)

220

Einsinkzone (Second Subzone)

230

Border zone (third subzone)

300

Lumbar area (third zone)

400

Pelvic area (fourth zone)

500

Leg area (fifth zone)

B

overall width

D13

Distance between the cross connection elements

H

total height

H1

Height of the cover plate

H7

Height of the edge beam

L

overall length

L10

Length of the leg part

L11, L12

Length of the cover plate inserter

T11

Depth (thickness) of the insert

W7

Width of the edge beam

W8

Width of the longitudinal beam (back support)

W9

Width of the crossbeam (lumbar support)

The above list is an integral part of the description.

Claims (15)

Mattress, which is divided longitudinally into several zones (100, 200, 300, 400, 500) of different hardness, wherein at least one zone (200) of the plurality of zones (100, 200, 300, 400, 500) additionally in the transverse direction of the mattress divided into several sub-zones (210, 220, 230) of different hardness. A mattress according to claim 1, wherein the sub-zones (210, 220, 230) comprise at least one first hardness support zone (210) and second hardness submerged zones (220) adjacent thereto, which are smaller, preferably at least 20% lower, than the first Hardness is, include. A mattress according to claim 2, wherein the at least one support zone (210) is exactly one support zone (210) centered or approximately centrally disposed in the transverse direction of the mattress. A mattress according to claim 2, wherein the at least one support zone (210) comprises two support zones (210) spaced transversely of the mattress about 20% to 35%, preferably about 25%, from a side edge of the mattress. A mattress according to claim 4, wherein between the two support zones (210) a separation zone is provided, which in the transverse direction of the mattress is centered or approximately is centrally located and has a third hardness which is greater than the second hardness and preferably less than or equal to the first hardness. Mattress according to one of claims 2 to 5, wherein the at least one support zone (210) each having a bar-shaped, extending in the longitudinal direction of the mattress foam element (8). Mattress according to one of claims 2 to 6, wherein the sinking zones (220) each have spacer elements (22, 23, 24), which are preferably made of a soft foam, wherein the spacer elements (22, 23, 24) over the length and width plane with grid-like gaps are distributed therebetween, and wherein in the spaces between the spacer elements (22, 23, 24) spring elements (5), which are preferably made of plastic, are arranged. A mattress according to any one of claims 2 to 6, wherein the sinking zones (220) are made of a foam block. A mattress according to any one of claims 2 to 8, wherein the sub-zones (210, 220, 230) comprise two edge zones (230) disposed on the lateral edge of the mattress and whose hardness is at least equal to that of, preferably approximately that of, at least a support zone (210). A mattress according to claim 9, wherein the edge zones (230) extend longitudinally of the mattress beyond the at least one zone, preferably over the entire length of the mattress. A mattress according to any one of claims 2 to 10, wherein the at least one zone (200) comprises an area corresponding to a support area of the chest and shoulders of a person resting on the mattress. A mattress according to claim 11, wherein the support zone (210) comprises an area corresponding to a supine or prone sternum supporting area of the person resting on the mattress, and the sinking zones (220) comprise areas surrounding a support area of the shoulder blades and shoulders in supine position or breasts and shoulders in prone position corresponds to the person resting on the mattress. Mattress according to claim 11 or 12, wherein the hardnesses of the support zone (210) and the Einsinkzonen (220) are coordinated so that in supine and / or prone position of the person resting on the mattress shoulders take a natural position to the trunk, and / or are coordinated with each other so that in the prone position of resting on the mattress person adjusts a uniform pressure distribution between the breasts and breastbone. Mattress according to one of claims 11 to 13, wherein the hardness of the support zone (210) and the other zones (100, 300, 400, 500) are coordinated so that in supine and / or prone position of the person resting on the mattress a uniform pressure distribution over the course of the spine and / or sets a natural, relaxed curvature of the spine, and / or the hardness of Einsinkzonen (220) and the other zones (100, 300, 400, 500) are coordinated so that in lateral position the person resting on the mattress adjusts a uniform pressure distribution over the course of the flank and / or a natural, horizontal straight alignment of the spinal column. A mattress according to any one of the preceding claims, wherein the hardnesses of the zones (100, 200, 300, 400, 500) and sub-zones (210, 220, 230) are tuned with respect to a selected range of body weight of a person resting on the mattress.

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