WO2009077798A1

WO2009077798A1 - Combined mattress

Info

Publication number: WO2009077798A1
Application number: PCT/HU2008/000151
Authority: WO
Inventors: László TURI
Original assignee: Turi Laszlo
Priority date: 2007-12-19
Filing date: 2008-12-15
Publication date: 2009-06-25
Also published as: HU0700223V0; HU3459U

Abstract

The subject of the invention is a combined mattress, which makes possible the creation of a comfortable, flexible and load-bearing bed, conforming with individual requirements. The combined mattress according to the invention has a basic layer and load-bearing layer composing a bed surface, connected with the basic layer. The combined mattress is characterized by that, the ratio of the thicknesses (K, L) of the basic layer (2) and the load-bearing layer (3) connected in a proper way is K/L=l/4...5/l taking into consideration the body- weight burdening the mattress (1) and the required flexibility parameters.

Description

Combined mattress

The subject of the invention is a combined mattress, which makes possible the creation of a comfortable, flexible and load-bearing bed, conforming with individual requirements.

One of the important conditions of appropriate relaxation during the night or daytime is the quality of a proper bed, respectively the quality of the mattress respectively the bed insert used. Nowadays the use of expanded rubber is the most common, widespread, and one of the cheapest solutions. The application of expanded rubber as a mattress does not offer however suitable convenience, as it does not ensure the proper support for the backbone. The alternative solution used for long is the application of spring mattress, which allows the formation of a considerably more comfortable bed surface. The suitable adjustment of the strength of the springs offers the possibility of conforming with the requirements and weight of the person using the bed. Currently with the highlighting of the use of natural materials, the use of beds made of natural materials gets priority on this field as well. Coco-fibre is one of these natural materials widely used, which ensures in itself, or combined with different materials, e.g. with latex, the formation of a bed, which meets all the requirements of convenience. In case of this solution the coco fibre plate gives the load-bearing layer, whereas the latex layer ensures the flexibility of the bed surface.

In the state of the art the Hungarian patent HU 167 109 describes a method for the production of a polyurethane heterogeneous foam block of higher density than 35 kg/m³ and less than 10% permanent set, plate sandwich as well as moulded pieces. During the process the soft polyurethane granules of 15-75 kg/m³ average density are mixed with a 10-20 mass% pre-polymer, then it is compressed to 5-60% of its volume, then it is treated with warm air of 150-400 m³ ₅ 120-170⁰C calculated on the weight unit of pre- polymer, when at the same time with the air intake, 40-120% of water or steam calculated on the weight unit of pre-polymer is led into the system. The treatment is executed in one movement, within a period of 0.5 - 2 hours. With the help of the process according to the invention, i.e. a soft foam plate or any other material (textile, rubberized cocohair) which is air-permeable, is put on one or both sides of the granules mixed with the pre-polymer, and compressed together, thus a sandwich structure can be made, which is suitable for enduring great dynamic load without further amendment, e.g. for sports mats.

The HU P 01 00833 patent description published on 28 June 2001 makes known a mustard- mattress, in which there are two textile-coverings, filled with white mustard- seeds placed in stitched pockets. The mattress is characterized by that, it has an outer covering formed as a double covering, and the covering is stitched lengthwise of the edge of the mattress. One of the coverings is made of genuine leather, whereas the other one is made of wool. Within this two-layer covering is placed the textile-insert filled with mustard-seeds. It is also characteristic of the mattress according to the solution, that the pockets are filled with mustard-seeds to 80% of their volume.

The HU P 99 01122 patent description published on 30 August 1999 makes known the combination of fibres and caoutchouc binding material forming a flexible, airy layer. According to the solution the combination of fibres, especially coco fibres and latex, caoutchouc binding material, coating and connecting the fibres at least partly, creates a flexible, airy layer, where the binding material is a microcapsule-dispersion containing at least one anti-bacteria and/or anti-virus disinfectant and/or perfume and it is suitable for producing seats for vehicles, mattresses, filters and packaging materials.

The HU 213 139 patent description makes known a mattress or upholstered body containing a sleeved spring unit as well as a method and equipment for producing sleeved spring units containing as well such spring units. The equipment according to the solution contains the device inserting the spring unit among the textile layers, the device tightening the textiles around the spring unit, the equipment compressing the spring unit, and the equipment, sleeving the spring unit by stitching the textiles directly beside the compressed spring unit. During the method a spring unit is placed between the two stitched textiles along the line parallel with the spring unit, the textiles are tightened around the spring unit, the spring unit is compressed, and during the compression the textiles are stitched directly beside the compressed spring unit on the opposite side of the line of spring unit mentioned earlier. The subject of the solution is the spring unit created during the method and mattresses or different upholstery containing such spring units.

The solutions described above and the solutions applied in practice do not offer the possibility of making mattresses, respectively bedinserts conforming with the user's requirements as well as being of simple construction and comfortable.

When working out the solution according to the invention we aimed to create a mattress which can conform with individual requirements, is of suitable flexibility and load- bearing capacity and made primarily of natural materials.

When working out the solution according to the invention we realized, that in case we make a mattress from basic layer and load-bearing layer, from plates preferably of coco fibres and latex of given thickness in such a way, that the plate thicknesses of certain layers are proportionate with each other, then the set aim can be achieved.

The invention is a combined mattress, which has a basic layer, and load-bearing layer composing a bed surface, connected with the basic layer. The combined mattress is characterized by that, the ratio of the thicknesses K, L of the basic layer and the load- bearing layer connected in a proper way is K/L=l/4...5/l taking into consideration the body- weight burdening the mattress and the required flexibility parameters.

In one preferred embodiment of the solution according to the invention on the bottom of the mattress the load-distributing layer is appropriately fixed on the basic layer. In another preferred embodiment of the solution according to the invention the material of the basic layer is latexed coco fibre plate, or flexible coco fibre plate.

In a further preferred embodiment of the solution according to the invention the material of the load-distributing layer is latex or synthetic latex or viscoelastic foam.

In a further preferred embodiment of the solution according to the invention the basic layer, the load-bearing layer and in given case the load-distributing layer of the mattress are stuck to each other with latex, or the layers are connected with each other with stitching.

In a further preferred embodiment of the solution according to the invention the thickness of the basic layer of the mattress is 3...10 cm, in given case 8 cm, the thickness of the load-bearing layer is 2...14 cm, in given case 6 cm.

In a further preferred embodiment of the solution according to the invention the thickness of the load-distributing layer of the mattress is 2...6 cm, in given case 4 cm.

The solution according to the invention will be furthermore set forth by the enclosed figures:

The Fig 1 shows a possible realization of the mattress according to the invention in section.

The Fig 2 shows another possible realization of the mattress according to the invention in section.

The Fig 3 shows the realization of the mattress according to the Fig 1 placed on a bed- rail, in section.

The Fig 4 shows the layer-structure of the mattress according to the Fig 1 in perspective view, partly with break. The Fig 1 shows a possible realization of the mattress 1 according to the invention in section. The mattress 1, the basic layer 2 and the load-bearing layer 3 can be seen in the figure. The thickness of the basic layer 2 is K, the thickness of the load-bearing layer 3 is L. The basic layer 2 and the load-bearing layer 3 are covered by the protecting layer 4 which partly ensures an aesthetic appearance for the mattress 1, partly ensures that the basic layer 2 and the load-bearing layer 3 can work well together without slipping.

The Fig 2 shows another possible realization of the mattress 1 according to the invention in section. The mattress 1, the basic layer 2 and the load-bearing layer 3, as well as the load-distributing layer 5 placed below the basic layer 2 can be seen in the figure. The thickness of the basic layer 2 is K, the thickness of the load-bearing layer 3 is L and the thickness of the load-distributing layer 5 is T. This case as well the basic layer 2, the load-bearing layer 3 and the load-distributing layer 5 are covered by the protecting layer 4 which ensures that the certain layers can work well together without slipping.

The Fig 3 shows the realization of the mattress 1 according to the Fig 1 placed on a bed- rail 6, in section.

The mattress I₅ the basic layer 2 and the load-bearing layer 3 as well as the protecting layer 4 covering these two layers can be seen in the figure. The functional location of the mattress 1 takes place on the bed-rail 6, since at the lower part of the mattress 1 made of natural materials the proper ventilation must be ensured, unless the lower layer, the coco fibre or latex might mold. In case the bed-rail 6 is of fixed form, then the flexibility of the bed is exclusively ensured by the mattress 1, whereas in case of a bed-rail 6 with wooden springs beside the mattress 1 the bed-rail 6 contributes to forming flexibility as well.

The Fig 4 shows the layer-structure of the mattress according to the Fig 1 in perspective view, partly with break. The basic layer 2 of thickness K of the mattress 1, as well as the load-bearing layer 3 of thickness L, and the protecting layer 4 can be seen in the figure. The protecting layer 4 envelopes from all sides the basic layer 2 and the load-bearing layer 3 placed on each other and fixed to each other in a known way. The protecting layer 4 has double function, partly it ensures an aesthetic outer appearance for the mattress 1, partly the proper working together of the two layers can be ensured this way as well.

In case of a definite realization of the mattress 1 first the determination of the size of the mattress 1 takes place, since the enclosing size of the mattress 1 must match with the size of the bed-frame chosen by the user. The determination of the thickness M of the mattress 1 takes place afterwards in such a way that the thickness K of the basic layer 2 and the thickness L of the load-bearing layer 3 are determined taking into consideration of the body- weight and convenience requirements of the user.

Determination of the thickness K of the basic layer 2 made of coco fibre plate takes place with taking into consideration two aspects. As the density of coco fibre is always identical, so the hardness, load-bearing capacity of the mattress 1 can be changed, modified by the determination of the thickness K of the basic layer 2. Determination of the thickness K depends partly on the body-mass of the user, partly on the user's requirements regarding the hardness of the bed. The basic layer 2 formed from the coco fibre plate ensures the load-bearing capacity and the hardness of the mattress 1. This way for example in case of a person weighing 120 kg the thickness of the basic layer 2 made of coco fibre plate must be minimum 8-10 cm. In case of a heavier person (100- 140 kg) the thickness of the basic layer 2 must be minimum 10-12 cm, in order to hold this weight on the long term without the risk of breaking.

In case of an average weight person (80 kg) determination of thickness K can fall into a much greater range, it can change between 6-12 cm, in conformity with the wish of the user regarding the hardness of the mattress. In case the mattress 1 should be placed into a bed-frame where the head-board or foot-board can be lifted, then no coco fibre plate according to the above can be applied, as it can not bear bending. This case flexible coco fibre plate must be applied with a thickness of 4.5 cm. The determination of the thickness L of the load-bearing layer 3 takes place with the consideration of one aspect. This case the user's requirements are authoritative, that is, the user's requirements regarding the hardness, respectively the flexibility of the bed. The material of the load-bearing layer 3 is the point-flexible latex, so its thickness determines the flexibility of the bed. In case of a person of average weight, in case the user wants a hard bed, then it is preferable to choose a basic layer 2 of a thickness L=4- 6cm. If the user definitely wants a flexible bed, then a basic layer 2 of a thickness L=IO- 12cm is to be chosen. As latex has point-flexible features, so the proper support of the body-parts and keeping the backbone in a horizontal state can be ensured through this.

After having determined the thicknes K of the basic layer 2 and the thickness L of the load-bearing layer 3 the thickness M parameter of the mattress 1 should be accurately determined. Following this the fixing of the basic layer 2 and the load-bearing layer 3 to each other takes place. We can ensure by the fixing of the layers, that the layers move together while in use and the slip of the layers can be prevented as well. This can be done by sticking the certain layers with latex or by stitching the layers as well.

The last step is the placing of the protecting layer 4 of the mattress 1, which besides ensuring an aesthetic appearance, ensures the moving together of the layers, as well as creates suitable conditions for sleeping. The material of the protecting layer 4 is natural or artificial textile.

The ratio of thicknesses K, L of the basic layer 2 and the load-bearing layer 3 is K/L= 1 / 4....5 / 1, which can be determined by taking into consideration the body- weight of the person to use the mattress 1 as well as the required flexibility parameters. The ratio of thicknesses K, L determines the flexibility of the mattress 1 and the grade of convenience, depending on the fact, how much a person of 60-120 kg presses it. The plate layer provides the mechanical strength, unity - this comes to the load-bearing surface of the bed-rail, bed-frame, the load-bearing layer adjecent directly or indirectly with the body of the person is placed on this. Definite sizes compared to the body-weight: In case of more flexible support: Body- weight (kg): 60 80 100 120

Basic layer (cm) K 3 6 8 10

Load-bearing layer (cm) L 4 4 4 4

In case of support of medium hardness: Body- weight (kg): 60 80 100 120

Basic layer (cm) K 3 6 8 10

Load-bearing layer (cm) L 6 6 6 6

In case of harder support:

Body- weight (kg): 60 80 100 120

Basic layer (cm) K 3 6 8 10

Load-bearing layer (cm) L 8 8 8 8

The material of the basic layer 2 of the mattress 1 according to the invention is coco fibre, the material of the load-bearing layer 3 and that of the load-distributing layer 5 is natural vulcanized latex, i.e. latex, which is gained from rubber-latex from the crust of the caoutchouc tree by foaming. Latex promotes perfect air-flow, does not hold back moisture providing by these immaculate hygiene. Latex ensures perfect support of morphology, point by point body adjusting. Instead of latex viscoelastic foam can be used as well as polyurethane. But it can be substituted by synthetic latex, or the mixture of natural and synthetic latex, for example 20% natural and 80% artificial latex mixture. Coco fibre can be in given case substituted by polyurethane.

The advantage of the invention is, that it makes possible the production of comfortable, flexible beds of high load-bearing capacity. The mattress is made with using natural materials. Due to its structure it does not pass on wave-motions and ensures even support. With the proper selection of the layers of the mattress any user's requirement can be met.

Claims

CLAIMS:

1. Combined mattress, which has a basic layer and load-bearing layer composing a bed surface, connected with the basic layer, characterized by that, the ratio of the thicknesses (K, L) of the basic layer (2) and the load-bearing layer (3) connected in a proper way is K/L=l/4...5/l taking into consideration the body- weight burdening the mattress (1) and the required flexibility parameters.

2. Mattress according to claim 1, characterized by that, on the bottom of the mattress (1) the load-distributing layer (5) is appropriately fixed on the basic layer (2).

3. Mattress according to claims 1 or 2, characterized by that, the material of the basic layer (2) is latexed coco fibre plate, or flexible coco fibre plate.

4. Mattress according to claims 1-3, characterized by that, the material of the load- distributing layer (5) is latex or synthetic latex or viscoelastic foam.

5. Mattress according to any of claims 1^1, characterized by that, the basic layer (2), the load-bearing layer (3) and in given case the load-distributing layer (5) of the mattress (1) are stuck to each other with latex, or the layers are connected with each other with stitching.

6. Mattress according to any of claims 1-5, characterized by that, the thickness (K) of the basic layer (2) of the mattress (1) is 3...10 cm, in given case 8 cm, the thickness (L) of the load-bearing layer (3) is 2...14 cm, in given case 6 cm.

7. Mattress according to any of claims 1-5, characterized by that, the thickness (T) of the load-distributing layer (5) of the mattress (1) is 2...6 cm, in given case 4 cm.