NL2013707B1 - Viscoelastic foam product with inserts. - Google Patents
Viscoelastic foam product with inserts. Download PDFInfo
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- NL2013707B1 NL2013707B1 NL2013707A NL2013707A NL2013707B1 NL 2013707 B1 NL2013707 B1 NL 2013707B1 NL 2013707 A NL2013707 A NL 2013707A NL 2013707 A NL2013707 A NL 2013707A NL 2013707 B1 NL2013707 B1 NL 2013707B1
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- Prior art keywords
- inserts
- foam
- article
- layer
- mattress
- Prior art date
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- 239000006260 foam Substances 0.000 title claims abstract description 106
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 8
- 239000011496 polyurethane foam Substances 0.000 claims description 7
- 239000007863 gel particle Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 description 11
- 238000007906 compression Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 210000004027 cell Anatomy 0.000 description 4
- 210000002683 foot Anatomy 0.000 description 4
- 239000006261 foam material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920005862 polyol Polymers 0.000 description 3
- 150000003077 polyols Chemical class 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000007667 floating Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003190 viscoelastic substance Substances 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- 101100071395 Bombyx mori HR38 gene Proteins 0.000 description 1
- 241001669679 Eleotris Species 0.000 description 1
- 229920000079 Memory foam Polymers 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 210000003423 ankle Anatomy 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000037182 bone density Effects 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010097 foam moulding Methods 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 210000001624 hip Anatomy 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 210000001699 lower leg Anatomy 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000008210 memory foam Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000035935 pregnancy Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000035900 sweating Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 230000005068 transpiration Effects 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 238000013316 zoning Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
- A47C27/142—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities
- A47C27/144—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities inside the mattress or cushion
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
- A47C27/148—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays of different resilience
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
- A47C27/15—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays consisting of two or more layers
Abstract
The current invention concerns a foam article such as a mattress or a cushion, comprising a viscoelastic foam layer, said viscoelastic foam layer has foam inserts embedded therein which elongate in the transverse direction of said article and which provide support to the body.
Description
VISCOELASTIC FOAM PRODUCT WITH INSERTS TECHNICAL FIELD
The invention pertains to the technical field of personalized sleeping products such as mattresses or cushions made of foam material.
BACKGROUND
An incorrect position during sleeping can be the cause of many problems, especially back problems. This is often due to the use of a sleeping system not adapted to the personal needs and features of the user. Moreover, when couples are sleeping together the used mattress is often not adapted to the personal shape of the users. Especially when more than one person is using the same mattress, this can give problems. Important feature for sleeping products such as mattresses and pillows are offered support and their pressure-lowering ability for certain areas.
Today, personalized systems are known which try to provide a product made on the requirements of the user. To that person, the user is measured and a product is proposed which offers the 'best fit', chosen from a range of standard products. In most cases, the optimal system is calculated on the length of the user, whereby the support areas are defined based on the measured length. This zoning will differ from user to user making it difficult to offer a mattress which is suited for more than one person.
Other systems in the prior art aim to offer a product which provides an optimal distribution of weight, rather than offering a pressure lowering solution. Mattresses and cushions made form viscoelastic or memory foam are known to offer an optimal weight distribution. These products have however drawbacks as they do not ventilate, and because the material literally encompasses the bod, it will be very difficult to move or turn on such products. These are drawbacks that need to be avoided. WO 2014 105 045 describes a viscoelastic foam mattress with inserts in the longitudinal direction of the mattress and which enhance the mobility of the user on the mattress. The mattress of WO 2014 105 045 does not provide a personalized tailor-made product which provides support on the required points.
The present invention aims to resolve at least some of the problems mentioned above. The invention aims to provide personalized, tailor-made sleeping products such as mattresses or cushions which are pressure-lowering, yet providing enough support for the body or body parts and which have optimal ventilating capacities.
SUMMARY OF THE INVENTION
The present invention provides a foam article such as a mattress according to claim 1, a bed according to claim 11 and a method according to claim 13. The article according to the current invention provides an optimal and personalized sleeping The present invention may thereto be described by the following embodiments: 1. A foam article such as a mattress or a cushion, comprising a viscoelastic foam layer, said viscoelastic foam layer has foam inserts embedded in cavities of the viscoelastic foam and which elongate in the transverse direction of said article, characterized in that said inserts have a density of between 20 and 80 kg/m3. 2. Foam article according to embodiment 1, characterized in that the hardness of said inserts is between 1.5 and 6 kPa. 3. Foam article according to any one of the previous embodiments, characterized in that said inserts are of high-resilience polyurethane foam. 4. Foam article according to any one of the previous embodiments, characterized in that said inserts have a circular, hexagonal, square or rectangular cross-sectional shape. 5. Foam article according to any one of the previous embodiments, characterized in that the article is provided with a top layer, placed above said viscoelastic foam layer. 6. Foam article according to embodiment 6, characterized in that said top layer is a polyurethane foam with imbedded gel particles. 7. Foam article according to any one of the previous embodiments, characterized in that said inserts are spaced and whereby each position of said inserts corresponds to a position on a user's body which requires support. 8. Foam article according to any one of the previous embodiments, characterized in that said inserts have the same or different densities. 9. Foam article according to any one of the previous embodiments, characterized in that said inserts extend over the entire width of said article. 10. Foam article according to any of the previous embodiments, characterized in that said inserts have a tensile strength of between 50 and 150 kPa. 11. Foam article according to any of the previous embodiments, characterized in that said resilience is between 40 and 75 %. 12. Bed provided with a foam article according to embodiments 1 to 11. 13. Bed according to embodiment 12, characterized in that said article is a mattress. 14. A method for producing a foam article with non-viscoelastic inserts, comprising: - measuring a person intended to use said foam article; - determining the characteristics and position of inserts in said article; and - inserting said inserts in cavities of said viscoelastic layer.
DESCRIPTION OF FIGURES
Figure 1A and B show a cross-sectional view of a foam article according to an embodiment of the current invention.
Figure 2A-C shows various embodiments of the inserts in a foam article according to an embodiment of the current invention.
Figure 3A-C shows a cross-sectional view along a longitudinal axis of various embodiments of the current invention.
Figure 4 shows a detailed view of an embodiment of a mattress according to the current invention.
Figure 5 shows a bed according to an embodiment of the current invention. Figure 6 shows a cushion according to an embodiment of the current invention. DETAILED DESCRIPTION OF THE INVENTION
The present invention concerns a foam article such as a mattress or a cushion which comprises a viscoelastic foam layer which has pressure-lowering capacities. In order to offer support on essential points of the body of the user, the viscoelastic foam layer comprises inserts which provide support. These inserts are placed in cavities of the foam layer on positions which coincide with certain points on the body of the user. In order to achieve the latter, the body of the user will be scanned and the exact position of the inserts in the article and the characteristics will be defined based on the obtained parameters. As such, a personalised article is provided which offers optimal support to a user.
Apart from optimal support to the body, the foam article according to the current invention equally provides for a good aeration and comfort in use.
Unless otherwise defined, all terms used in disclosing the invention, including technical and scientific terms, have the meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. By means of further guidance, term definitions are included to better appreciate the teaching of the present invention.
As used herein, the following terms have the following meanings: "A", "an", and "the" as used herein refers to both singular and plural referents unless the context clearly dictates otherwise. By way of example, "a compartment" refers to one or more than one compartment. "About" as used herein referring to a measurable value such as a parameter, an amount, a temporal duration, and the like, is meant to encompass variations of +/-20% or less, preferably +/-10% or less, more preferably +/-5% or less, even more preferably +/-1% or less, and still more preferably +/-0.1% or less of and from the specified value, in so far such variations are appropriate to perform in the disclosed invention. However, it is to be understood that the value to which the modifier "about" refers is itself also specifically disclosed. "Comprise," "comprising," and "comprises" and "comprised of" as used herein are synonymous with "include", "including", "includes" or "contain", "containing", "contains" and are inclusive or open-ended terms that specifies the presence of what follows e.g. component and do not exclude or preclude the presence of additional, non-recited components, features, element, members, steps, known in the art or disclosed therein.
The recitation of numerical ranges by endpoints includes all numbers and fractions subsumed within that range, as well as the recited endpoints.
The expression "% by weight" (weight percent), here and throughout the description unless otherwise defined, refers to the relative weight of the respective component based on the overall weight of the formulation.
In a first aspect, the current invention provides a foam article such as a mattress or a cushion, comprising a viscoelastic foam layer, whereby the viscoelastic foam layer has foam inserts embedded in cavities of the viscoelastic foam. These inserts elongate in the transverse direction of the article. For the purpose of the current invention, said transverse is to be understood as parallel to the width of the article. More specifically, transverse also has to be understood as a direction perpendicular to the longitudinal axis of a user's body.
Viscoelastic foam is known to have a pressure-lowering capacity. Matrasses and cushions of viscoelastic foam create a 'floating' experience whereby the body enters a virtual state of weightlessness when sleeping. For a long time it was found that this floating sleeping was the most optimal way to solve or prevent ergonomic problems.
The inventors of the current invention have found that the latter is not entirely correct and that there is need to break the weightlessness characteristics on certain points of the article in order to provide the necessary support to the user.
To that purpose the inventors found that the foam inserts should advantageously have a density of between 20 and 80 kg/m3, more preferably between 25 and 65 kg/m3. Said density is measured according to ISO standard 845 (reviewed in 2013). By providing inserts on several intervals in the article according to the current invention, in the transverse direction of the article, supporting points are provided for the user's body. These points enhance the ergonomic nature of the article and ensure an optimal sleeping experience. It was found that outside this range, the inserts either provided not enough support, or that the comfort for the users declined.
In a further or separate embodiment, said inserts will have a compression stress of between 1.5 and 6 kPa, more preferably between 1.8 and 5 kPa, measured according to ISO standard 1798 (reviewed in 2011). Again it was found that this range of compression stress provides the support needed for the purpose of the current invention.
In yet a further embodiment, the article will have tensile strength higher than 50 kPa, preferably of between 50 and 150 kPa, measured according to ISO standard 1798 (reviewed in 2011). In yet a further or other embodiment, said maximal deformation is higher than 50, preferably between 60 and 160, measured according to the same ISO standard 1798.
The resilience by ball rebound of the inserts is preferably higher than 40, more preferably between 50 and 80 % measured according to ISO standard 8307 (reviewed in 2010).
The compression of the inserts is preferably lower than 10 (measured according to ISO standard 1856. The wet compression, measured according to NFT 56 112 is by preference lower than 50.
In principle, said inserts can be produced of any suitable foam with the characteristics as described above. By preference, said foam inserts are produced of a high-resilient (HR) foam or a cold-cure foam. For the purpose of the current invention, the term HR foam is to be understood as a variety of polyurethane foam produced using a blend of polymer or graft polyols. High resilience foam has a less uniform (more random) cell structure different from conventional products. The different cell structure helps add support, comfort, and resilience or bounce. High resilience foams have a high support factor and greater surface resilience than conventional foams and are defined in ASTM D3770, now withdrawn. It was found by the inventors that the combination of viscoelastic foam with HR inserts provide the perfect combination of pressure-lowering characteristics and support.
In an embodiment, said HR foam may be non-reticulated. In another embodiment, said HR foam may be reticulated.
Many HR foams are known in the art. Suitable foams which can be used in an embodiment according to the current invention are for instance, but not limiting: HR28, HR38, HR43, HR45, HR55M, HR60.
In a preferred embodiment, the inserts will have a maximal diameter of between 3 and 6 cm, for instance around 4 cm. Diameters outside this range will either not be effective or compromise the comfort of the user. Preferably, said inserts will have a circular, hexagonal, square or rectangular cross-sectional shape. In a most preferred embodiment, said inserts are tubular. The inserts are completely embedded in the viscoelastic layer.
The inserts may be provided in a discontinuous pattern along a transverse line of the article. For instance, said insert may be a disposition of globes on regular points of such a transverse line. In another embodiment, said insert may be a disposition of cylinders, preferably same dimensions, on discrete distances along said transverse line. In yet another, most preferred embodiment, said inserts extend over the entire width of said article.
In case of a· mattress, inserts may be provided in cavities, which go from one side of the mattress to the other side and whereby the inserts span the entire width of the mattress. Alternatively, for instance for a double mattress, inserts may be provided which span only half of the width of the mattress. In such case, a two person mattress may be provided which is personalized for two users, whereby on one half the inserts are positioned according to the obtained parameters of one user and the other half is adapted for a second user.
In an embodiment, said all inserts in the article will be of the same type, that is: same density, hardness, elasticity, etc. In another embodiment, each position may be provided with different inserts, whereby the term different is to be understood as different in dimension, cross-sectional shape and/or characteristics (e.g. different densities). These differences may be calculated based on the parameters obtained by the body scan of the user.
In yet another embodiment, said individual inserts may themselves be comprised of different layers of material which meet the requirements as described above. This can be necessary if for instance the body scan of the user reveals that the body of the user is in need of a very specific support on a certain location.
The viscoelastic foam layer will form the majority of the article. By preference, said foam viscoelastic has a hardness of at least about 20 N and no greater than about 80 N for desirable softness and body-conforming qualities. In other embodiments, the viscoelastic foam layer may have a hardness of at least about 30 N and no greater than about 70 N. In still other embodiments, the viscoelastic foam layer may have a hardness of at least about 40 N and no greater than about 60 N. Unless otherwise specified, the hardness of any foam material referred to herein is measured by exerting pressure from a plate against a sample of the material to a compression of 40% of an original thickness of the material at approximately room temperature (e.g., 21 -23 Degrees· Celsius), wherein the 40% compression is held for a set period of time, following the ISO standard 2439.
The viscoelastic foam layer also includes a density providing a relatively high degree of material durability. The density of the viscoelastic foam layer can also impact' other characteristics of the foam, such as the manner in which the viscoelastic foam layer responds to pressure, and the feel of the foam. In some embodiments, the viscoelastic foam layer 122 has a density of no less than about 30 kg m3 and no greater than about 150 kg/m3. In other embodiments, the viscoelastic foam layer may have a density of at least about 40 kg/m3 and no greater than about 135 kg/m3. In still other embodiments, the viscoelastic foam layer may have a density of at least about 50 kg/m3 and no greater than about 120 kg/m3.
In an embodiment said viscoelastic foam may be a non-reticulated (that is, with intact cells) or a reticulated viscoelastic foam (skeletal cellular structure with open cells).
In an embodiment, the viscoelastic layer may be provided with a top layer which is positioned over the top surface of the viscoelastic layer and is supported by the latter. The top layer will be a non-viscoelastic layer. In an embodiment, the non-viscoelastic top layer can rest upon the viscoelastic layer without being attached thereto. In another embodiment, the layers may be secured to one another by adhesive or cohesive bonding material, and/or by being bonded together during formation of the layers. Tape, a hook and loop fastener material, conventional fasteners, stitches extending at least partially through the layers, or any of a number of different structures or processes may be utilized to secure the layers to each other. For example, thin adhesive strips (not shown) may be positioned between the layers. Such adhesives may extend across the entire width and length of the article, or in some embodiments may instead extend only across discrete portions of the width and/or length of the article. Such adhesive strips are flexible enough to form a softer structure than other, more conventional adhesive glues.
Both the top surface and the bottom surface of the foam layers may be substantially planar. In other embodiments, at least one of the top surface and the bottom surface may be non-planar, including without limitation surfaces having ribs, bumps, waves, and other protrusions of any shape and size, surfaces having grooves, and other apertures that extend partially or fully through the foam layers and the like.
In an embodiment, the top layer is a preferably a soft polyurethane foam or a viscoelastic foam. The top layer will preferably enhance the breathability of the article. Viscoelastic foam material does not aerate or ventilate well. By adding a non-viscoelastic top layer, the breathability of the article may be further enhanced. If the article is a mattress, this will prevent the user from sweating during his or her sleep.
In a most preferred embodiment, said top layer is a water-based (polyurethane) foam containing polyols, preferably polyols of vegetative origin. More preferably, said foam is interspersed by micro gel particles which will increase the mechanical and physical features as well as the transpiration ability of the foam, making the material particularly suited for use as a top layer in the current invention. By preference, said gel particles have a size of 1 to 5 mm and comprise 5 to 20% of the total volume of the foam matrix.
The top layer will preferably have a density of between 40 and 70 kg/m3, more preferably between 50 and 60 kg/m3 such as for example 55 kg/m3 when measured by ISO standard 845.
The hardness of the top layer lies preferably between 0.5 and 1.5 kPa, more preferably between 0.6 and 1.3 kPa, such as 0.8 kPa, when measured according to ISO standard 3386.
The tensile strength of the top layer will preferably lay between 35 and 55 kPa, more preferably between 40 and 50 kPa, such as 45 kPa, when measured according to ISO standard 1798.
The resilience by ball rebound of the inserts is preferably higher than 40, more preferably between 50 and 80 % measured according to ISO standard 8307 (reviewed in 2010).
The compression of the inserts is preferably lower than 5% (measured according to ISO standard 1856.
Each of these parameters contributes to a good ventilating and comfortable top layer.
In an embodiment, the top layer has a thickness which is smaller or the same as the viscoelastic layer comprising the inserts.
As mentioned, the inserts are spaced, whereby each position of the inserts corresponds to a position on a user's body which requires support. To that purpose, the user is measured and body parameters are obtained. These parameters may include length, with, weight, sex, age, bone density, fat percentage, length of individual body parts, disease history, etc.
The collection of the body parameters can occur via regular ways such as questionnaires, or by more advanced technologies such as photographs and/or 3D scanning or a combination of both.
Based on the gathered information, the required characteristics of the foam inserts are determined (density, diameter, hardness, etc.) as well as their position in the article. Subsequently a personalized article is manufactured, whereby the inserts are provided in cavities in the article.
If the article is a mattress, the inserts will be provided on regular, spaced positions in the mattress. By preference, the position of the inserts will coincide with at least one or a combination of the following points or locations of the body of a user: shoulders, chest, lower back, thighs, loin, hip, lower leg, feet, knee and/or ankle. In an embodiment, said mattress will have more than 5 inserts, such as 6, 7, 8, 9, 10 or more.
As such, the current invention equally relates to a method for producing a personalized foam article comprising a viscoelastic layer with non-viscoelastic foam inserts, comprising: - measuring a person intended to use said foam article; - determining the characteristics and position of said inserts; - inserting said inserts in cavities of said viscoelastic layer.
Under normal circumstances, a foam article such as a mattress has a lifespan of around 10 to 15 year. During that time span, the human body may undergo significant changes (e.g. weight loss or gain, pregnancy, etc.). The current invention makes it possible to adapt the foam article to the body changes of the user. In an embodiment, the inserts may be removed, and replaced, depending on alterations in the user's body,
The three different foam elements (top layer, under layer and inserts) may be formed separately and joined afterwards, or manufactured together in one piece. In another embodiment, the viscoelastic layer with the inserts may be formed simultaneously, after which they are joined to a separately manufactured top layer.
Production may occur by any suitable process such as by direct injection expanded foam molding or co-injection molding.
By way of example only, any of the features described above are applicable to mattresses, mattress toppers, overlays, futons, sleeper sofas, or any other element used to support or cushion any part or all of a human or animal body.
In a final aspect, the current invention equally relates to a bed provided with a foam article, being a mattress of a cushion according as described above. The bed may comprise of a standalone frame which is provided with a separate mattress according to an embodiment of the current invention. In another embodiment, bed and mattress are made of a combination of a bottom, provided with the mattress according to an embodiment of the current invention, such as a box spring.
The bed may be a single or double bed, or a king-size bed. In a preferred embodiment, the bed according to the current invention is a box spring whereby the top layer is a mattress according to the current invention, and provided with one or more supports. In a most preferred embodiment, said bed comprises two supports, placed central of the mattress and underlying layers, and extending towards the top and end of the mattress. By preference, said bed is adjustable in position.
The invention is further described by the following non-limiting drawings and examples which further illustrate the invention, and are not intended to, nor should they be interpreted to, limit the scope of the invention.
EXAMPLES
Table 1 provides examples of inserts which can be used for the purpose of the current invention and their characteristics.
Table 1 Characteristics of HR inserts useable for a foam article according to the current invention
Description of figures
Figure 1A is a perspective view of a foam mattress 1 according to an embodiment of the current invention. The mattress 1 comprises a viscoelastic layer 2 provided with inserts 3 which are embedded in cavities in the viscoelastic layer 2. The inserts 3 may be tubular, having a round shape in cross-section. As seen on figure 1A, the inserts 3 are positioned on regularly spaced distances of each other, but these distances may also vary, depending on the measurements obtained from the user. Different inserts 3 made from different material can be used on each or some of the positions (indicated with different shading). The inserts extend in the transverse direction of the mattress, along the width W of the mattress and in a direction perpendicular to the length of the user.
As depicted in figure IB, the mattress may be provided with a top layer 4 which is made of a non-viscoelastic material such as soft foam or alternatively, a viscoelastic material. This layer may span the entire surface of the viscoelastic layer 3 and may be attached to layer 3 by suitable attachment means (not shown on the figure). Alternatively, the top layer 4 may be loosely placed on top of the viscoelastic layer.
Figure 2 A to C show various embodiments of the inserts 3 according to the current invention. The inserts may be tubular (figure 1A) but also rectangular (figure 2A), rhombic (figure 2B), hexagonal (2C) or any other suitable shape known in the art. The inserts 3 are entirely embedded into the viscoelastic layer. With reference to figure 3, a cross-section along the longitudinal axis of the mattress is shown, depicting various possibilities of the inserts 3. In the most common embodiment, the inserts will run along the entire width of the viscoelastic layer (figure 3A). Figure 3B shows an embodiment where the inserts 3 run from the both outer sides of the viscoelastic layer to the middle. This embodiment may be especially advantageous when used in a double mattress 1, whereby the inserts have to positioned differently based on different body scans of both users. With respect to figure 3C, the inserts 3 follow a discontinuous path along the width of the viscoelastic layer 2. The inserts 3 may be positioned on discrete locations. Each of the inserts may have a different density, hardness, elasticity, etc., depending on the requirements of the user, which is depicted on the figures by different shading. In another embodiment, not shown, the height of the inserts 3 in the viscoelastic layer 2 may differ.
Figure 4 shows a detail of an advanced embodiment of the mattress 1 of the current invention. The mattress comprises of a top layer 4 which resides on the viscoelastic layer 2. The viscoelastic layer 2 is provided with a plurality of tubular inserts 3 which have different densities. The top layer 4 and viscoelastic layer 2 reside on a bottom layer of the mattress, which can be made of any suitable material such as regular foams, latex foams, etc. the bottom layer 5 can be provided with a plurality of spring elements 6 for additional comfort to the user. The mattress is by preference enveloped in a tissue
Figure 5 shows an embodiment of a bed 7 according to the current invention, provided with a mattress 1 with inserts 3 in a viscoelastic layer. The bed 7 as shown in figure 5 is of the box spring type, whereby the mattress 1 resides on a separate bottom layer, which is preferably provided with spring elements (not shown). The combination is placed on a support substrate, which may be a wooden, metal, textile substrate or a combination of various suitable materials. The assembly provides for a sleeping surface for a user. The assembly is placed on a double support 8, comprising two feet 10, 101, which is positioned in the middle of the assembly and whereby the feet 10, 101 extend towards the top and end of the mattress.
Figure 6 shows a cushion 11 according to the current invention, made of viscoelastic foam 1 and provided with inserts 3.
Features on the figures 1: mattress 2: viscoelastic layer 3: inserts 4: top layer 5: bottom layer 6: spring elements 7: bed 8: support 9: support substrate 10, 101: feet 11: cushion
Claims (13)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2013707A NL2013707B1 (en) | 2014-10-29 | 2014-10-29 | Viscoelastic foam product with inserts. |
| EP15192210.1A EP3023034B1 (en) | 2014-10-29 | 2015-10-29 | Method for providing a personalized mattress |
| BE2015/5703A BE1023512B1 (en) | 2014-10-29 | 2015-10-29 | VISCOELASTIC FOAM PRODUCT WITH INSERTS |
| DE202015007492.8U DE202015007492U1 (en) | 2014-10-29 | 2015-10-29 | Viscoelastic foam product with inserts |
| DK15192210.1T DK3023034T3 (en) | 2014-10-29 | 2015-10-29 | PROCEDURE TO PROVIDE A PERSONALIZED MATTRESS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2013707A NL2013707B1 (en) | 2014-10-29 | 2014-10-29 | Viscoelastic foam product with inserts. |
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| Publication Number | Publication Date |
|---|---|
| NL2013707B1 true NL2013707B1 (en) | 2016-10-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL2013707A NL2013707B1 (en) | 2014-10-29 | 2014-10-29 | Viscoelastic foam product with inserts. |
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| Country | Link |
|---|---|
| NL (1) | NL2013707B1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040074008A1 (en) * | 2002-06-22 | 2004-04-22 | Wendell Martens | Memory foam mattress system |
| US20050278852A1 (en) * | 2004-06-12 | 2005-12-22 | Wahrmund Gary M | High air flow foam bedding products |
| WO2007002290A2 (en) * | 2005-06-24 | 2007-01-04 | Tempur World, Llc | Reticulated material body support and method |
| US20130000047A1 (en) * | 2010-08-05 | 2013-01-03 | Mccann Barry | Selectively inflatable air mattress |
| US20140059776A1 (en) * | 2012-08-29 | 2014-03-06 | Sinomax Usa, Inc. | Adjustable mattress topper |
-
2014
- 2014-10-29 NL NL2013707A patent/NL2013707B1/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040074008A1 (en) * | 2002-06-22 | 2004-04-22 | Wendell Martens | Memory foam mattress system |
| US20050278852A1 (en) * | 2004-06-12 | 2005-12-22 | Wahrmund Gary M | High air flow foam bedding products |
| WO2007002290A2 (en) * | 2005-06-24 | 2007-01-04 | Tempur World, Llc | Reticulated material body support and method |
| US20130000047A1 (en) * | 2010-08-05 | 2013-01-03 | Mccann Barry | Selectively inflatable air mattress |
| US20140059776A1 (en) * | 2012-08-29 | 2014-03-06 | Sinomax Usa, Inc. | Adjustable mattress topper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PD | Change of ownership |
Owner name: PERZONA INTERNATIONAL B.V.; NL Free format text: DETAILS ASSIGNMENT: VERANDERING VAN EIGENAAR(S), OVERDRACHT; FORMER OWNER NAME: PERZONA BENELUX B.V. Effective date: 20160929 |
|
| PD | Change of ownership |
Owner name: SLEEPTRADE HOLDING B.V.; NL Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), ASSIGNMENT; FORMER OWNER NAME: PERZONA INTERNATIONAL B.V. Effective date: 20231204 |