EP0782830B1 - Mattress - Google Patents

Abstract

The second foam material area (22) is fixed without adhesive in a recess in the first foam material area (11). The second foam material area in plan view on the lying surface of the mattress (10) extends crossways to the longitudinal direction of the mattress. The material of one of the foam material areas in relation to the material of the other area has a different recovery rate of its material after loading, particularly a slow recovery rate. The second foam material area is releasably fixed in the first. The second foam material area and the accommodation extend from one long side (23, 24) of the mattress to the other.

Description

The invention relates to a mattress according to the preamble of claim 1.

Such a mattress is known from DE-C-41 36 369.

In a further known embodiment DE-A-31 28 894 is a Spring mattress shown. A serves as a requirement first foam area. In this foam area is in the range of Lying area from the shoulders to the buttocks an image available in the a second foam area is used. Here, the second Foam area have a higher quality than the first.

The object of the invention is a mattress of the type mentioned design that they provide optimal support for a user when lying down forms. The mattress should be inexpensive to manufacture.

this happens according to the invention by a mattress with the features according to claim 1, Through special shape cuts it is possible to glue the two foam areas together without an adhesive connect what is important in terms of manufacturing, on the one hand others also have no harmful adhesives, solvents or the like. Stored in the mattress or in particular in the foam area become. By extending transversely to the lying surface of the mattress It is still possible to use a specific zone for the foam area To design users optimally, so that for example the shoulder or the Back is optimally supported. In a particular embodiment According to the invention, the second foam area is releasable in the first Foam area attached. With this measure, the shape cuts are like this attached that both foam areas interlock easily, securely can be held and removed if necessary for example the second foam area with a certain hardness to be replaced by another with a different hardness. Then this is from Meaning if the mattress is optimal for a particular user to be aligned.

The second foam region advantageously extends from one Long side of the mattress to the other so that this ensures is that one zone on the human body especially with this second Foam area comes into contact even when the user is should turn. In addition, the releasable attachment of the second This increases the foam area.

The second Foam area is made of the material with the slow reset behavior constructed and is arranged on the part of the mattress on which the Shoulder zones of a mattress user. By the Special foam that shows a slow reset behavior is obtained for this sensitive area an optimal pressure distribution, so that even at a rotation of the body the shoulder zone of the user on this special second foam area remains while the rest Body is on the first foam area, and in particular one optimal support and restoring force, especially in Lumbar region, guaranteed.

It is advantageous that two second on each side of the bed Foam areas are provided so the mattress with its front and To be able to use the back and also around the head and foot section to be able to replace. The first foam area consists of a material that has a high restoring force after loading has, in particular, a safe resetting of the material in the A user's lumbar region is guaranteed. This material has one particularly high resilience, so that the lumbar region through this material is safely supported.

In a special embodiment, the first foam area mat-like with the second foam area in the receptacle trained and covers a spring mattress. This measure allows even with a spring mattress in the shoulder zones of the Mattress user to use the foam that is a weak, has slow resilience, while the rest of the mattress part again shows a high resilience, so that in addition to the spring mattress, the has its special advantages, the additional advantages of a Foam mattress added. Due to the mat-like cover that is expediently provided on both sides of the innerspring mattress, the manufacture of the mattress is not significantly more expensive. Here is too notice that of course instead of a conventional innerspring mattress too Barrel spring mattresses can be used.

To ensure secure storage of the second foam area on the first in the To receive the image, there are undercuts in the image, engage behind the protrusions of the second foam area. By this shape cuts ensures secure attachment. in this connection it is recommended that the undercuts with the receptacle as well as the Projections - seen in the transverse direction of the mattress - a T-shaped shape have, so that the second material areas in the inclusion of the first Material range can be pushed in and there against vertical extraction through the undercuts and protrusions are held; by the frictional force between the second foam area and the first are these two parts when the mattress is loaded a horizontal pull together.

In a special embodiment of the invention are in the mattress openings provided through the first foam area, which serve to ventilate the mattress on the one hand and Change the spring action of the mattress in this area, creating a still safer and optimal adaptation for the human body is given. It is recommended that the openings through slots with a Mattress lying surface in connection, so this one Breakthroughs easier to manufacture and on the other hand in this Breakthroughs to store special reinforcing agents. in this connection it is recommended that in the lumbar region of the mattress crosswise Breakthroughs are provided to receive the reinforcement wedges in the manner of a insert. This insert creates an insert element between the shoulder area and Hip area created, the reinforcement wedge as a so-called Lordosis wedge is formed. The hardness of the wedge can vary depending on the shape of the Lumbar spine can be chosen differently. With a pronounced Lumbar spine curvature (hollow back) is chosen to be a harder part to achieve a correspondingly high support pressure. The breakthroughs have a diameter of about half the thickness of the mattress equivalent. The reinforcement wedges have a cross-section that one shows hand-like shape. This measure ensures a safe support the finger of the wedges on the wall of the openings. Furthermore Air-like channels are created around the reinforcement wedge, which provide ventilation the mattress significantly increase.

In a special embodiment of the invention are in the lying area the hip of a user in the first foam area several, across Longitudinal direction of the mattress, running parallel and side by side Provided recesses. These depressions in the middle zone of the mattress ensure a deep sinking of the hip area compared to the Sink depth for a full block. This will result in better pressure distribution of the body because of the natural double S-shape of the Spine a deep sinking of the hips the pressure peaks into this area reduce, with the depressions recommended a have different penetration depths in the first foam area. The middle of the parallel depressions show a larger one Depth of penetration than the lateral, so that, as already mentioned, the hip area can sink relatively deep. The sinking and the elasticity even further between the hip areas of the two lying surfaces Mattress lying side by side in the middle, transverse to the longitudinal direction Channels provided. These channels reduce the strength of the spring action. In addition, this area of the mattress areas is particularly good ventilated, because on the one hand the depressions on both lying sides of the Mattress are present and secondly the two breakthroughs for the Reinforcement parts and finally the channels.

Fig. 1

in perspektivischer Darstellung eine Schaumstoffmatratze mit zwei Schulterliegezonen,

Fig. 2

in perspektivischer Darstellung eine Queransicht einer weiteren Schaumstoffmatratze,

Fig. 3

einen Ausschnitt in Seitenansicht der Matratze,

Fig. 4

mattenartige Auflage für eine Federkernmatratze.

The subject matter of the invention is shown in the drawing in several exemplary embodiments, namely:

Fig. 1

in perspective a foam mattress with two shoulder lying zones,

Fig. 2

a perspective view of a transverse view of another foam mattress,

Fig. 3

a section in side view of the mattress,

Fig. 4

mat-like support for a spring mattress.

1 consists of a first foam area 11, which is the core of the mattress.

It should be pointed out here that this core is still surrounded by references can be to make up the whole mattress. Likewise, could Upholstery can still be provided.

The foam area 11 has approximately a cuboid shape. Here points the foam area on its top, the lying surface 12 and on his Bottom of the lying surface 13. The lying surface 12 is with a receptacle 19 provided, this extends transversely to the longitudinal direction of the mattress from the one long side 23 to the other long side 24 of the mattress. This recording 19 is provided with undercuts 20.

The receptacle 19 is filled by the second foam area 22. This engages in the undercuts 20 with rib-like projections 21 so that the second foam area 22 in the first foam area 11 can be held solvent-free on the mattress. Only by the two A shaped bracket is guaranteed. The foam area 22 is equipped so that it does not protrude over the lying surface 12, but lies in the plane of the mattress.

It should be noted here that the second lying area 22 there is arranged where the shoulder zone of a user comes to lie later.

On the underside 13 of the mattress 10 is also a receptacle 19 Undercuts 20 are provided, in which also a second Foam area 22 can engage with rib-like projections. This ensures that the mattress 10 in two layers for one User is usable.

It should be noted here that the two foam areas are one have different suspension behavior, while the material of the first foam area is made of an elastic material that has a high restoring force, the second foam area 22 a special foam with slow recovery behavior. That means, that with a load in the first foam area when lifting the Load automatically that the material springs immediately, the second time Foam area, however, slowly changes this foam area after a strain its shape until it finally returns to its original Has taken shape again.

As can also be seen from FIG. 1, are transverse to the longitudinal direction Mattress openings 17 provided. These breakthroughs 17 that cross extend between the two long sides 23 and 24 are over a Slot 18 with the upper lying surface 12 or the lower lying surface 13 in Connection.

In the exemplary embodiment according to FIG. 2, the mattress 10 in turn has one cuboid shape. The main core consists of the first Foam area 11. In this foam area, receptacles 19 are transverse incorporated into the longitudinal direction of the mattress, in which a second Foam area 22 takes place.

In this embodiment, however, there are several second ones Foam areas 22 are provided. They are on the top one Lying surface 12 two foam areas 22, also on the lower one Lying surface 13. These foam areas form so-called shoulder zones, on which the user of the mattresses can rest, depending on his position. Between The two shoulder zones on the lying surface 12 or 13 is a central zone 15 provided. This central zone 15 takes the rest of the back area Person on. This central zone 15 is, as shown in FIG. 2, in side view Breakthroughs 17 limited. Here these breakthroughs 17 take Reinforcement parts 25, so-called lordosis wedges. The reinforcement parts 25 nestle against the inner wall of the opening 17. she can depending on the burden of a person or depending on the form of the Lumbar spine can be chosen differently hard. With a hollow cross a harder wedge is chosen by a user to accordingly to achieve high support pressure. As can be seen from the figure, these reinforcing wedges have a hand shape in cross section, as a result conditionally, air ducts can be formed around the reinforcing parts which air transport is possible, for example, for cooling purposes. Between the so-called lordosis wedges 25 are still adjacent channels 26 provided that seen exactly in side view of the mattress, midway between the upper and lower lying surface 12, 13 are arranged. In the field of Middle zone 15 are recesses 27 on the two lying surfaces 12, 13 arranged. As can be seen in FIG. 2, these depressions are introduced into the foam area 11 to different degrees. The middle The depression in the foam area has a larger depression than that both outer. Through these recesses 27, the channels 26 and the Breakthroughs 17 with the reinforcing parts 25 is a relative, if desired large sinking guaranteed, compared to the sinking depth at a full block, ie when the foam area 11 is completely filled would. Through these depressions, channels and breakthroughs there is a optimal pressure distribution for the resting body because of the natural double S shape of the spine a deep sinking of the hips the pressure peaks are reduced. It should be pointed out here that the Breakthroughs for the reinforcement parts 25 also equipped with slots 18 are. By this measure, these reinforcement parts 25 can be easily Install. As can be seen further from FIG. 2, in the head and foot part, that is, at the upper and lower ends of the mattress 10, there are also depressions 27 provided both on the upper and on the lower Lying area. These depressions serve on the one hand to hold the Machining the mattress, on the other hand, can also be done in these areas the sinking depth of the head can be changed.

It should also be pointed out here that the two shoulder zones 14 and 16 between which the middle zone also have a different hardness could. In this case, however, the shoulder zone 16 would be different Preservation of use, for example around the feet or lower legs and to be able to support knees differently.

It remains to be added that the thickness of the second foam areas 22nd corresponds approximately to 1/4 the thickness of the first foam region 11.

4, the foam area 11 is as Mat spelled out. The mat is provided with receptacles 19 in which the second Foam area 22 can be used solvent-free. These mats 28 have the task of covering a spring mattress and thus the advantages the different spring action of the individual areas even with one Spring innerspring to bring full effectiveness. The structure this mat is similar to the mattress in the previous ones Embodiments.

As already mentioned, the illustrated embodiments are only for example implementations of the invention, this is not based thereon limited. On the contrary, there are still various changes possible. The Recordings did not need to be T-shaped, as shown, they could also be dovetail-shaped. The second Foam areas could also have individual protrusions that are mushroom-like are designed, reach behind individual areas of the recording and thus safely the first foam area. Then there is no linear definition but a punctual definition of the two Foam areas. To ensure full air circulation, would in the case of a finished mattress, the long sides with air-permeable layers be provided.

LIST OF REFERENCE NUMBERS

10

mattress

11

first foam area

12

upper lying surface

13

lower lying area

14

shoulder zone

15

Central zone

16

shoulder zone

17

breakthrough

18

Slots, from 17

19

admission

20

undercut

21

rib-like projection on 22

22

second foam area

23

Long side, from 10

24

Long side, from 10

25

Reinforcement parts (lordosis wedges)

26

channels

27

Deepening on 12, 13

28

mat

Claims (19)

1. A mattress (10) having a first foam area (11) and a second foam area (22), the second foam area (22) being arranged at least zonally in a receptacle (19) in the first foam area (11) and attached to the first foam area (11) in the receptacle (19), the second foam area (22) extending transversely relative to the longitudinal direction of the mattress (10) when the lying surface of the mattress (10) is taken in plan view, characterised in that the first foam area (11) is made from a resilient material, which springs back immediately a load is removed, while the second foam area (22) is made of a foam with slow recovery behaviour.
2. A mattress according to claim 1, characterised in that the second foam area (22) is arranged in a part of the mattress (10) where the shoulder zones (14) of a mattress user come to rest.
3. A mattress according to claim 1 or claim 2, characterised in that one or more, in particular two, second foam areas (22) are provided on each lying surface side (12, 13).
4. A mattress according to one of claims 1 to 3, characterised in that the material of the first foam area (11) comprises a high level of resilience after loading, which in particular ensures a reliable recovery of the material in the hip area of the user.
5. A mattress according to one of claims 1 to 4, characterised in that the first foam area (11) with the second foam area (22) located in the receptacle (19) covers a spring interior mattress in the manner of a mat (28).
6. A mattress according to one of claims 1 to 5, characterised in that undercuts (20) are provided in the receptacle (19) in the first foam area (22), behind which undercuts (20) there engage the projections (4) of the second foam area (22).
7. A mattress according to claim 6, characterised in that the undercuts (20), with the receptacle (19) and the projections (21), exhibit a T-shape when the mattress is viewed in the transverse direction.
8. A mattress according to one of claims 1 to 7, characterised in that perforations (17) extending right through the first foam area (11) are provided in the mattress (10).
9. A mattress according to claim 8, characterised in that the perforations (17) are connected with a lying surface (12, 13) of the mattress (10) via slits (18).
10. A mattress according to claim 8 or claim 9, characterised in that transversely extending perforations (17) are provided in the area (15) of the mattress on which the lumbar vertebrae rest, which perforations (17) accommodate reinforcing elements (25) in the form of inserts.
11. A mattress according to claim 10, characterised in that the perforations (17) for the reinforcing elements (25) exhibit a diameter which corresponds to approximately half the thickness of the mattress (10).
12. A mattress according to claim 10 or claim 11, characterised in that air-like channels are provided around the reinforcing elements (25) in the perforations (17), which channels increase ventilation of the mattress.
13. A mattress according to one of claims 10 to 12, characterised in that the reinforcing elements (25) in the perforations (17) exhibit different hardnesses depending on the patient.
14. A mattress according to one of claims 10 to 13, characterised in that the reinforcing elements (25) comprise fingers, which rest on the walls of the perforations (17).
15. A mattress according to one of claims 10 to 14, characterised in that the reinforcing elements (25) exhibit a cross section which resembles a hand.
16. A mattress according to one of claims 1 to 15, characterised in that a plurality of recesses (27) lying parallel next to one another and extending transversely relative to the longitudinal direction of the mattress (10) are provided in the area in which a user lies.
17. A mattress according to claim 16, characterised in that the recesses (27) exhibit different depths of penetration into the foam area (11), the central ones of the parallel recesses exhibiting greater penetration depth than the lateral ones.
18. A mattress according to one of claims 1 to 17, characterised in that channels (26) lying next to one another and extending transversely relative to the longitudinal direction are provided centrally between the central areas (15) of the two lying surfaces (12, 13) of a mattress (10).
19. A mattress according to one of claims 1 to 4, characterised in that the second foam area (22) is mounted in form-fitting manner in the first foam area (11).

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