DE102012019672A1 - Foam core material for filling mattress core of water bed mattress, has zones comprising different geometric structure and/or hardness, and meander or shaft structure arranged on upper side or bottom side of zones - Google Patents

Abstract

The material has zones comprising a different geometric structure and/or hardness, and a meander or shaft structure arranged on an upper side or a bottom side of the zones. Side surfaces of the material exhibit a cant that is adapted to a surface of a couch frame retaining the mattress. A containment shell (9) comprises an aperture (10) that is provided in connection with the ambient atmosphere. The aperture in the containment shell comprises a closure (11) and is made of a plastic material, where the closure is provided with an optical and/or haptic identification. An independent claim is also included for a comfort and safety mattress.

Description

The invention relates to a foam core material for a comfort and safety mattress, in particular one having at least one, liquid-fillable chamber, which has at least one filling and / or vent opening, as well as with a, the at least one chamber enclosing safety envelope having an opening which communicates with the ambient atmosphere.

From the DE 199 55 988 A1 a water chamber of a water mattress is previously known, wherein a water-absorbing envelope of polyurethane, PVC or similar plastic material is used. According to the local solution, a water chamber is to be created in which the water diffusion is reduced to a minimum. To solve this problem, the shell is double-walled. As a result, the water molecules diffusing through the plastic on the outside of the inner shell should not be able to diffuse further. Accordingly, the interface between the outer and inner sheath forms a diffusion barrier, so that the outward diffusion of water molecules can be reduced to a minimum.

At the water mattress with damping after DE 20 2004 006 427 U1 the task is to allow a subsequent change in the damping properties. This object is achieved by a water mattress in which a fillable inner shell disposed within the outer shell is present, and within the inner shell is a cushioning material. Furthermore, externally accessible means for variable liquid filling of the outer shell and the inner shell are present. A water mattress is said to have the typical effect of buoyancy and pressure support when the amount of liquid required to variably adjust the damping is variable by pumping between the inner and outer sheaths. As means for variable liquid filling serve after DE 20 2004 006 427 U1 Filler neck, which are provided on the inner and the outer shell. The total amount of liquid present within the water mattress remains unchanged, so that the beneficial effects of the support force and the adaptation to the body shape are given. In a preferred embodiment according to DE 20 2004 006 427 U1 At least the inner shell is initially evacuated initially, ie after manufacture and in particular before the first start-up. As a result, the inner shell is pressed together with the embedded damping material, so that the overall result is a very small space requirement for this shell. During the first startup, the amount of liquid required in accordance with the damping requirements can then be filled into the evacuated envelope. If it turns out during use that the damping of the inner shell is not optimal, can subsequently be set with the suction of the liquid filled an evacuated state again. For the variable liquid filling is assumed by a hose connection, which is present in the bottom area and which is located between the inner and the outer shell.

At the generic water mattress after DE 203 10 819 U1 with a formed of plastic film water chamber and an outer plastic safety sheath leakage of water in the surrounding premises should be avoided when a leak in the plastic film of the water chamber. Accordingly, the plastic film of the water chamber is completely enclosed by a further protective cover, which is partially connected to the plastic film of the water chamber. This connection should be executed in sections and in particular at defined attachment points. Furthermore, the plastic film of the water chamber should be formed at a distance from the plastic film of the protective cover.

The prior art also includes water mattresses with one or more, the water flow or the water movement in the interior of the water mattress damping and / or the supporting force of the water mattress changing and permeable by the water deposits. These may include a plurality of individual damper elements disposed side by side. Such a solution is in the DE 103 06 039 B4 disclosed. There, the damper elements are penetrated by a plurality of passage channels, wherein the passage channels over their longitudinal extent at least partially have a changing flow cross-section.

From the foregoing, it is an object of the invention to provide a further developed foam core material for a comfort and safety mattress, the safety mattress should have high utility value properties and compared to the known very long service life.

The object of the invention is achieved by a comfort and safety mattress according to the combination of features according to claim 1, wherein the dependent claims represent at least expedient refinements and developments.

It is therefore of a comfort and safety mattress with at least one, with Liquid fillable chamber has gone out, which has at least one filling and / or vent. The chamber may preferably consist of a plastic film material, in particular PVC material. Furthermore, a, the at least one chamber enclosing safety envelope is present, which has an opening which communicates with the ambient atmosphere or can be brought into connection.

The opening in the containment has a closure. This closure has a visual and / or haptic marking as a warning to prevent improper use of this opening. Furthermore, the fillable chamber in the containment is predominantly carried out freely movable and lies at least in the filling state on the insides of the containment substantially without spacing.

The containment is made of an identical or similar preferably plastic material as the chamber and provides protection to the inner mattress core.

The safety cover protects the inner core against dust, dander, crystals, UV radiation, but also mechanical injuries. Even if damage in the inner core, i. H. the fillable chamber is created, no water can leak. In this case, the safety enclosure forms a second core.

By the safety cover together with secured closure is excluded, moreover, that an unwanted filling of the safety envelope instead of the actual fillable chamber takes place.

A safety lock in this regard may include a mechanically breakable fuse or other separately actuable locking means. It is also possible here to color-label the closure lid in comparison to known filling openings and to provide it with a warning.

However, it should not be possible with the closure of the containment not only a vent in case of damage to the inner core. The effective in case of damage safety cover should get the complete functionality of the mattress and for this reason also allow refilling or aspirating liquid, especially water.

In the filling state, all existing openings are closed, whereby damage to the inner mattress core can be determined by a noise due to the liquid penetrating into the space between the mattress core and the safety envelope. The fact that no fixed connections between the containment shell and the core chamber are executed, a vent in the event of damage can be realized in a simple manner.

In a further embodiment, it is possible to introduce a moisture-sensitive sensor arrangement or the like indicator material in the space between the mattress core and the safety envelope. As a result, possible damage can be detected early.

According to the mattress core is filled with a preferably one-piece shaped cut foam core material. The foam core material may consist of zones of different geometric structure and / or hardness.

In a preferred embodiment, the foam core material has a meander or wave structure at its top and / or bottom.

The distances between Wellenberg and Wellental on the respective core material sides can be chosen differently. Likewise, over the longitudinal extent of the relevant foam core, the distance from wave crest to wave crest or wave trough can be varied to wave trough. As a result, an optimal weight intake and an optimization of sleeping comfort is given.

In one development of the invention, the foam core material on its side surfaces on a slope, which is adapted to the surface of the mattress receiving reclining frame. The chamfer preferably designed as a wedge slope positions the mattress safely and prevents unwanted slippage even with heavy mattress load. With the use of the foam core material for the liquid-fillable chamber of the safety mattress, the disadvantages of the previous nonwoven technology are combined. In nonwoven technology, depending on the desired calming, different layers and a buoyant body are stacked on top of each other. So that the nonwoven layers do not slip, the same are fixed to the outer skin and connected to each other by cords. Despite this measure slipping of the nonwovens can take place. Furthermore, there is a possibility that the fleeces dissolve when the strings break. This can lead to a complete deformation of the water core, so that the corresponding mattress is unusable.

In the solution according to the invention, however, the mattress chamber is filled with a complete, form-cut core, which no longer requires support on the shell or in itself. The lying hardness and the water movement are via a structure profile explained above adjustable. After spacing the wave crests, an additional lumbar support function can be realized especially for users with spinal disc or spine problems. In addition, there is an improved entry and exit compared to conventional water bed designs. The used foam core with wave cut has more than twice the density compared to nonwovens. This results in a higher stabilization.

The invention will be explained below with reference to an embodiment and with the aid of a figure.

The figure shows here a basic sectional view through a waterbed with frame, foam frame and the comfort and safety mattress, which is located within the foam frame, optionally with a safety tub 16 , made of film material, is shown.

The illustrated bedstead frame 1 resting on feet 2 and takes a foam frame 3 on. The foam frame 3 has a mattress pointing towards the diagonal cut 4 on. The foam frame 3 Can be fixed to the bottom side of the frame by screws. Optionally, the use of separating wedges made of foam is possible if two waterbed mattresses are used in a frame (not shown).

The comfort and safety mattress shown in the figure consists of at least one liquid-fillable chamber 5 which can be produced from a plastic film material.

The chamber 5 includes a filling and / or vent 6 with neck 7 and screw cap 8th ,

About the neck 7 exists in a known manner the ability to fill the chamber with a liquid, especially water. About the same nozzle then takes place a vent, which is optionally repeated after a certain time after Erstbefüllen and Erstentlüften.

The chamber 5 is according to the invention and the embodiment of a safety envelope 9 surround. The security envelope 9 also has an opening 10 ,

The opening 10 in the safety bag 9 has a closure 11 on, which is provided with an optical and / or haptic marking, to improper use of this opening 10 to avoid.

Furthermore, the fillable chamber 5 in the safety bag 9 predominantly freely movable and lies at least in the filling state on the insides of the containment 9 at.

The security envelope 9 consists of a similar or identical preferred plastic material as the chamber 5 and it makes the safety cover a protection of the inner mattress core. The closure 11 the security envelope 9 can be a mechanical device 12 against unwanted opening.

In this respect, the filling and / or venting opening with a safety lock and the opening in the safety cover is designed to be secured. Both openings point to the top of the mattress, as can be understood from the figure.

In the filling state are all existing openings 6 and 10 closed, with damage to the inner mattress core 5 due to a noise due to in the space between mattress core and safety envelope 9 penetrating liquid is detectable.

Additionally, in the space between the mattress core 5 and the safety envelope 9 a moisture-sensitive sensor array or a similar indicator material, which responds to moisture, are introduced.

In a preferred embodiment of the invention is the mattress core, ie the chamber 5 , with a preferably one-piece shaped cut foam core material 13 filled.

The foam core material may consist of zones of different geometric structure and / or hardness.

In the embodiment shown has the foam core material 13 at its top and bottom a wave structure 14 , The distances between the wave crests and the respective wave troughs can be chosen differently on the respective core material sides, ie the top and the bottom. Likewise, the lateral distance between wave crest and following wave crest is variable to create defined hardness zones.

Preferably, the foam core material 13 at its side surfaces a skew 15 on which to the inclined surface 4 of the foam frame 3 adapted for the purpose of optimal positioning of the mattress.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 19955988 A1 [0002]
• DE 202004006427 U1 [0003, 0003, 0003]
• DE 20310819 U1 [0004]
• DE 10306039 B4 [0005]

Claims (7)

Foam core material for a comfort and safety mattress, wherein the mattress core is filled with a preferably one-piece shaped cut foam core material, characterized in that the foam core material consists of zones of different geometric structure and / or hardness and on its top and / or bottom a meander or wave structure has. Comfort and safety mattress according to claim 1, characterized in that the distances between wave crest and wave trough are chosen differently on the respective Schaumkernmaterialseiten. Comfort and safety mattress according to claim 1 or 2, characterized in that the foam core material has at its side surfaces a skew, which is adapted to the surface of a mattress receiving reclining frame. Comfort and safety mattress according to one of the preceding claims with at least one liquid-fillable chamber, which has at least one filling and / or venting opening, and with a, the at least one chamber enclosing safety envelope having an opening which communicates with the ambient atmosphere is in connection, characterized in that the opening in the containment has a closure and the closure is provided with an optical and / or haptic marking in order to avoid improper use of this opening, continue to perform the fillable chamber in the containment predominantly freely movable is and at least in the filling state rests against the inner sides of the safety cover, wherein the safety cover of an identical or similar, preferably plastic material such as the chamber and selbige safety cover forms a protection of the inner mattress core and the closure of the containment has a mechanical device against unwanted opening. Comfort and safety mattress according to claim 4, characterized in that the filling and / or venting opening comprises a safety closure and the filling and / or vent opening and the opening in the safety cover to the mattress top side and are spaced from each other. Comfort and safety mattress according to one of claims 4 or 5, characterized in that in the filling state, all existing openings are closed, wherein damage to the inner mattress core is detected by a noise due to the penetrating into the space between the mattress core and safety sheath liquid. Comfort and safety mattress according to one of claims 4 to 6, characterized in that in the space between mattress core and safety envelope a moisture-sensitive sensor array or the like indicator material is introduced.

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