WO2015160337A1 - Support de corps multi-couche présentant un matériau à changement de phase - Google Patents

Support de corps multi-couche présentant un matériau à changement de phase Download PDF

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Publication number
WO2015160337A1
WO2015160337A1 PCT/US2014/034265 US2014034265W WO2015160337A1 WO 2015160337 A1 WO2015160337 A1 WO 2015160337A1 US 2014034265 W US2014034265 W US 2014034265W WO 2015160337 A1 WO2015160337 A1 WO 2015160337A1
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WO
WIPO (PCT)
Prior art keywords
foam
layer
body support
phase change
layers
Prior art date
Application number
PCT/US2014/034265
Other languages
English (en)
Inventor
Norman D. ALLEN
Original Assignee
Sealy Technology,Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sealy Technology,Llc filed Critical Sealy Technology,Llc
Priority to PCT/US2014/034265 priority Critical patent/WO2015160337A1/fr
Priority to US14/428,159 priority patent/US20150351557A1/en
Publication of WO2015160337A1 publication Critical patent/WO2015160337A1/fr

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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
    • A47C27/15—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays consisting of two or more layers
    • 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
    • A47C27/08—Fluid mattresses or cushions
    • A47C27/085—Fluid mattresses or cushions of liquid type, e.g. filled with water or gel
    • 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

Definitions

  • the present invention relates to body supports. More specifically, the present invention relates to multi-layer foam body supports and methods of manufacturing the same.
  • Body supports for supporting any portion or all of a human or animal body are generally known in the art, and are typically deformable structures in the form of a mattress, pillow, or cushion. Including those for use in beds, seats, or chairs. Body supports may be any desired shape or size suitable to support a portion, up to and including the entirety, of the user,
  • Known body supports may be constructed of a single layer of material.
  • a body support may be constructed of a single layer of natural material such as straw, cotton, feathers, air within one or more bladders, metal springs, or synthetic material such as synthetic foam.
  • Still other body supports may be constructed of multiple layers of different materials.
  • some body supports are made of two or more layers of different synthetic foams, such as viscoelastic or non-viscoelastic polyurethane foam, and/or latex foam.
  • Body supports constructed of one or more layers of synthetic foam have certain desired properties. For example, certain synthetic foams conform to a user, distributing the user's weight and reducing pressure points. This provides for more even support of the user and relieves pressure on joints, improving the user's level of comfort.
  • body supports constructed of one or more layers of synthetic foam may have certain undesirable properties.
  • Body supports formed of some synthetic foams may have difficulty dissipating heat generated by the user (i.e., body
  • the synthetic foam can absorb and retain heat generated by the user, resulting in the body support increasing in temperature.
  • the temperature increase of the body support is often undesirable, as it can lead to a decrease in the level of comfort of the user. For example, a user may experience sweating, restlessness, or general discomfort from the increased temperature of the body support.
  • the invention provides, in some aspects, a body support including a plurality of vertically stacked layers, a phase change material provided in each of the layers, and a cover enclosing the vertically stacked layers.
  • the invention provides, in other aspects, a body support including a plurality of foam layers, at least one of which is a high-resilience foam, and a phase change material provided within the high-resilience foam layer.
  • FIG. 1 is a perspective view of a body support in accordance with an embodiment of the present invention.
  • FIG. 2 is a partial cross sectional view of the body support of FIG. 1, taken along line 2-2 of FIG. 1.
  • FIG. 3 is a cross-sectional view of an encapsulated phase change material.
  • FIG. 4 is a cross-sectional view of a phase change material without encapsulation.
  • the invention illustrated in the accompanying Figures and described herein is generally directed to a multi-layer body support 100 having improved thermal capacity.
  • the temperature of the body support is generally maintained, nominally increased, or slowly increased during use, improving the relative comfort of a user.
  • a body support 100 For ease of discussion and understanding, the following detailed description will refer to a body support 100, but illustrates the body support 100 as a mattress. It should be appreciated that a mattress is provided only for purposes of illustration. The features described herein in association with a body support are applicable to any suitable element or structure provided to support one or more body parts of a human or animal. Accordingly, a body support may include, but is not limited to, a mattress, mattress topper, overlay, futon, sleeper sofa, cushions, seat cushions, seat backs, pillows, neck pillows, leg spacer pillows, eye masks, or any other element or structure provided to support a portion, up to and including the entirety, of a hitman or animal.
  • the body support may be any suitable or desired size or shape, (001 ] It should be appreciated that the term “relative comfort” of a user is directed to include how comfortable or physically content a user is in association with the temperature of the body support at any given moment in time.
  • the term “relative comfort” may generally be a subjective level of physical comfort based upon the ambient temperature felt by a user at a given moment and which may be unique to one or more different users. “Relative comfort” may also change from moment to moment depending upon a number of different factors, tor example, but not limited to, the ambient temperature outside the body support.
  • FIG. 1 illustrates a body support 100 including an upper or top surface 1 10 opposite a lower or bottom surface 1 12.
  • top and bottom surfaces 1 10, 112 may be substantially planar.
  • top and bottom surfaces 1 10, 112 may be substantiall parallel to one another.
  • one or both of the top and bottom surfaces may be non-planar, for example, but not limited to, surfaces having ribs, bumps, waves, projections, protrusions of any shape and/or size, grooves, and/or apertures.
  • one or both of the top and bottom surfaces may be non-parallel, for example, but not limited to, surfaces having an arcuate, curved, convex, concave, angled, linear, and/or a non-linear profile.
  • Top and bottom surfaces 1 10, 1 12 may be separated by a plurality of foam layers 120, shown in FIG. 2.
  • the foam layers 120 are provided between the top and bottom surfaces 1 10, 1 12 and extend a thickness T. Stated otherwise, thickness T extends between and separates top and bottom surfaces 110, 1 12.
  • the foam layers 120 are not shown in FIG. 1 , as body support 100 may include a cover or enclosure 1 14, Cover 1 14 may be provided to wrap around or enclose the foam layers 120. Cover 114 may provide a barrier to reduce wear of the foam layers 120, or act as a protective barrier to the foam layers 120.
  • cover 1 14 may provide a moisture barrier to limit or reduce penetration of liquids into the foam layers 120 and/or an allergen barrier to deter bacteria, dust mites, or other allergens.
  • the foam layers 120 may include a plurality or multiple layers of foam. Each of the foam layers may interact with one another to provide a desired soft and/or comfortable feel, while also providing adequate support for the user.
  • the foam layers 120 may include two or more layers of foam, including, but not limited to, viscoelasiic or non-viscoelastic polyurethane foam, latex foam, polyurethane foam, and/or any known or future developed suitable expanded polymer, such as expanded ethylene vinyl acetate, polypropylene, polystyrene, or polyethylene.
  • the two or more layers of foam may include layers of similar or the same types of foam, or layers of different types of foam.
  • the two or more layers of foam may include viseoelastic foam alternating with other layers of non-viscoelastic foam to provide body- conforming and low resilience benefits of viscoelasiic foam while also exhibiting the ''bounce '5 and overall support of conventional body supports.
  • the lowermost of the foam layers 120 is a base layer or foundation layer 122 of foam.
  • Base layer 122 may be formed of high-resilience (FIR) foam.
  • the high-resilience foam may be high-resilience polyurethane foam, in one embodiment, the liigh-resilience foam may include any expanded polymer, including, but not limited to, expanded ethylene vinyl acetate, polypropylene, polystyrene, polyurethane, or polyethylene.
  • the foam of base layer 122 may be a reticulated or non-reticulated foam.
  • non-reticulated foam includes a cellular structure in which walls of the individual cells are substantially intact.
  • reticulated foam is a cellular foam structure in which the cells of the foam are essentially skeletal.
  • the cells of the reticulated foam are each defined by a plurality of apertured windows surrounded by cell struts. The cell windows of reticulated foam can be entirely gone (leaving only the cell struts) or substantially gone.
  • Foam may be considered "reticulated” if a portion of the windows of the cells are missing (i.e., windows having apertures therethrough, or windows that are completely missing and therefore leaving only the cell struts).
  • foam may be considered “reticulated” if at least 50% of the windows of the cells are missing.
  • Such structures can be created by destruction or other removal of cell window material, or preventing the complete formation of cell windows during the manufacturing process of the foam.
  • Reticulated foam has certain characteristics which may be well suited for use in body support 100. Reticulated foam includes the enhanced ability to permit fluid movement through the foam, thereby providing enhanced air and/or heat movement within, through, and/or away from the layer made of reticulated foam.
  • Base layer 122 may have a hardness of greater than about 80 N and no greater than about 200 N. This is to provide a desirable overall body support firmness and "bounce " when used in conjunction with one or more additional layers of overlying viscoelastic foam and/or non-viscoelastic foam. In other embodiments, base layer 122 may have a hardness of at least about 90 N and no greater than about 190 N, or a hardness of at least about 100 N and no greater than about 180 N.
  • the "hardness" of a 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 (for example, 21 to 23 Degrees Celsius), wherein the 40% compression is held for a set period of time, following the international Organization of Standardization (ISO) 2439 hardness measuring standard.
  • ISO international Organization of Standardization
  • Base layer 122 may also have a density suitable to provide a reasonable degree of material durability.
  • the density of base layer 122 can impact other characteristics of the foam, such as the manner in which base layer 122 responds to pressure, and the "'feel" of the foam layer.
  • Base layer 122 may have a density of no less than about 10 kg/m J and no greater than about 80 kg/m 4 .
  • base layer 122 may have a density of at least about 15 kg/m J and no greater than about 70 kg m 3 , or a density of at least about 20 kg m 3 and no greater than about 60 kg/m " *.
  • base layer 122 may include an upper or top surface 123a and a lower or bottom surface 123b. Top surface 123a may be provided opposite bottom surface 123b. Bottom surface 123b may be substantially planar, while top surface 123a may include a plurality of projections or convolutions.
  • the projections or convolutions of top surface 123a may define a plurality of peaks and valleys, hi addition, the projections or convolutions may define one or more passageways between base layer 122 and an associated layer vertically stacked or provided above base layer 122 (for example, intermediate layer 124), The passageways permit movement of air between base layer 122 and an associated layer vertically stacked upon or provided above base layer 122.
  • Such passageways can improve heat transfer within body support 100, For example, heat absorbed by one or more layers vertically stacked upon or provided above base layer 122 may be transferred from the layer(s) to the base layer 122.
  • the passageways can improve heat dissipation from one or more layers vertically stacked upon or provided above base layer 122.
  • the heat dissipation and heat transfer can assist in cooling, or reduce stored heat, of one or more layers vertically stacked upon or provided above base layer 122. including those layers in closest proximity to a user.
  • the top and bottom surfaces may be substantially planar or substantially non-planar.
  • top and/or bottom surfaces may include similar or different convolutions or non-planar features, including, but not limited to, ribs, bumps, and other protrusions of any shape or size, and/or surfaces having grooves or other apertures that extend partially or fully through the base layer.
  • Base layer 122 may include a first thickness TL First thickness Tl may be provided as the distance between top surface 123a and bottom surface 123b. First thickness Tl may be at least about two inches and no greater than about ten inches, and in some embodiments at least about four inches and no greater than about eight inches. In still other embodiments, the first thickness Tl may be about six inches.
  • the base layer 122 is the lowermost layer of the body support 100.
  • the base layer 122 can be supported by one or more underlying layers, such as by another layer of HR foam.
  • the intermediate layer 124 may be vertically stacked or provided above base layer 122. Stated otherwise, base layer 122 may be provided below or beneath intermediate layer 124. In addition, intermediate layer 124 may be provided adjacent the base layer 122. Accordingly, base layer 122 may provide support for intermediate layer 124.
  • Intermediate layer 124 may rest upon base layer 122 without being secured thereto, in the embodiment illustrated in F G. 2 5 intermediate layer 124 is secured to base layer 122 by adhesive or cohesive bonding material.
  • intermediate layer 124 is secured to base layer 122 by a plurality of thin adhesive strips (not shown).
  • the adhesive strips, or the adhesive or cohesive bonding material may be provided between base layer 122 and intermediate layer 124, and may extend across the entire width and/or length of body support 100, or instead may be located in less than all the surface area defining the interface between base and intermediate layers 122, 124.
  • the adhesive strip material or the adhesive or cohesive bonding material may be located only at edges of the body support 100 to adhere edges of the base and intermediate layers together.
  • the adhesive strip material or the adhesive or cohesive bonding material may be located at discrete locations across the length and/or width of the body support to spot adhere the base and intermediate layers 122, 124 together.
  • the adhesive strip material or the adhesive or cohesive bonding material may be located in any other manner or location(s) to secure the base and intermediate layers together.
  • the adhesive strips or adhesive or cohesive bonding material will have a desired flexibility to form a softer structure than other, more conventional bonding materials.
  • the base and intermediate layers may be bonded together during formation of the layers, or by a coupling assembly, including, but not limited to, tape, hook and loop fastening material, conventional fasteners used in body supports, stitches extending at least partially through the base and intermediate layers 122, 124. or any other suitable fastening material.
  • Intermediate layer 124 may be formed of a viscoelastic foam. Viscoelastic foam, which is sometimes referred to as “memory foam” or "low resilience foam,” generally partial iy conforms to the portion of the user supported thereby. In this manner, the force and/or weight applied upon the body support 100 by the user is at least partially distributed by the intermediate layer 124.
  • the viscoelastic foam of intermediate layer 124 is a slow recovery foam which slowly returns to its original shape when force and/or weight applied b (he user is removed from the foam.
  • the foam of intermediate layer 124 can be a reticulated foam (whether reticulated viscoelastic foam or non- reticulated viscoelastic foam).
  • the intennediate layer 124 of viscoelastic foam may have a hardness of at least about 20 N and no greater than about 80 N for desirable softness and body-conforming qualities.
  • the layer of viscoelastic foam may have a hardness of at least about 30 N and no greater than about 70 N. and in some embodiment a hardness of at least about 40 N and no greater than about 60 N.
  • the intermediate layer 124 of viscoelastic foam may have a density providing a relatively high degree of material durability.
  • the density of the foam in intermediate layer 124 may also impact other characteristics of the foam, such as the manner in which intermediate layer 124 responds to pressure, and the feel of the foam.
  • the intennediate layer 124 of viscoelastic foam may have a density of no less than about 30 kg/m 3 and no greater than about 150 kg/rn'.
  • the layer of viscoelastic foam may have a density of at least about 40 kg/m " and no greater than about 135 kg/m , and in still other embodiments a density of at least about 50 kg/m J and no greater than about 120 kg m J ,
  • the intermediate layer 124 may alternatively be formed of non-viscoelastic foam, and in some embodiments can be made of latex foam.
  • the layer o non- viscoelastic foam may have a hardness of at least about 30 N and no greater than about 130 N. This provides a desirable overall body support firmness and "bounce" when used in combination with one or more additional layers of viscoelastic foam (e.g., overlying layers, as described below).
  • the layer of non-viscoelastic foam may have a hardness of at least about 40 N and no greater than about 120 N, and in other embodiments a hardness of at least about 50 N and no greater than about H O N.
  • the foam of the intermediate layer 124 can have a density of no less than about 40 kg/m 3 and no greater than about 100 kg nr ⁇
  • the layer of non-viscoeiastic foam may have a density of at least about 50 kg/m 3 and no greater than about 100 kg/m 3 , and in still other embodiments further a density of at least about 60 kg/m 3 and no greater than about 100 kg/m 3 .
  • the non-viscoelastic foam layer(s) can increase the "bounce'' of body support 100 while retainin benefits of viscoelastic foam, including those described above.
  • intermediate layer 124 may include an upper or top surface 125a and a lower or bottom surface 125b.
  • Top surface 125a may be provided opposite bottom surface 125b, Top and bottom surfaces 125a, 125b may be substantially planar. Alternatively, at least one of the top and/or bottom surfaces 125a. 125b may be substantially non-planar.
  • the top and/or bottom surfaces 125a. 125b may include similar or different convolutions or non-planar features, including but not limited to, ribs, bumps, and other protrusions of any shape or size, and/or surfaces having grooves or other apertures that extend partially or fully through the intermediate layer.
  • the intermediate layer 124 may include a second thickness T2.
  • Second thickness T2 may be provided as the distance between top surface 125a and bottom surface 125b.
  • Second thickness T2 may be at least about one inch and no greater than about five inches, and in some embodiments at least about one inch and no greater than about four inches, in some embodiments, second thickness T2 may be less than or not greater than first thickness ⁇ .
  • the uppermost of the foam layers 120 in the illustrated embodiment is a top layer 126 of foam.
  • Top layer 126 may be vertically stacked or provided above intermediate layer 124. Stated otherwise, intermediate layer 124 may be provided below or beneath top layer 126. Accordingly, intermediate layer 124 may provide support for top layer 126.
  • top layer 126 may be vertically stacked or provided above base layer 122. Stated otherwise, base layer 122 may be provided below or beneath top layer 326. Accordingly, base layer 122 may provide support for top layer 126. in addition, top layer 126 may be provided adjacent to intermediate layer 124.
  • top layer 126 may rest upon the intermediate layer 124 without being secured thereto.
  • top layer 126 is secured to intermediate layer 124 by adhesive or cohesive bonding material, or by a plurality of thin adhesive strips (not shown).
  • the top layer 126 can be secured to the intermediate layer 124 in a manner similar to that described above in connection with the base and intermediate layers 122, 124.
  • the top layer 126 is formed of viscoelastic foam, including non-reticulated viscoelastic foam or reticulated viscoelastic foam.
  • the viscoelastic foam or non- viscoelastic foam may be substantially as described in association with intermediate layer 124.
  • the top layer 126 is made of non- viscoelastic foam.
  • top layer 126 may include an upper or top surface 127a and a lower or bottom surface 127b. Top surface 127a may be provided opposite bottom surface 127b. In addition, top and bottom surfaces 127a, 127b may be substantially planar. Alternatively, at least one of the top and/or bottom .surface may be substantially non-planar. In addition, the top and/or bottom surfaces may include similar or different convolutions or non-planar features, including, but not limited to, ribs, bumps, and other protrusions of any shape or size, and/or surfaces having grooves or other apertures that extend partially or fully through the intermediate layer. [004] ] Top layer 126 may include a third thickness T3.
  • Third thickness T3 may be provided as the distance between top surface 127a and bottom surface 127b. Third thickness T3 may be at least about one inch and no greater than about five inches, and in some embodiments may be at least about one inch and no greater than about four inches, in some embodiments,, the third thickness T3 is at least about two inches. Generally, third thickness T3 may be greater than, ec
  • the foam layers 120 may include a combination of viscoeiastic foam and/or high-resilience foam.
  • the foam layers 120 may include a combination of one or more layers of viscoeiastic foam vertically stacked on high-resilience foam (e.g., two or more layers of reticulated or non-reticulated viscoeiastic foam as described above having different hardnesses and/or densities, atop high-resilience foam).
  • the foam layers 120 may include a combination of one or more layers of viscoeiastic foam vertically stacked on one or more layers of non- viscoeiastic foam, with the layers of viscoeiastic and non -viscoeiastic foam vertically stacked atop high- resilience foam.
  • the foam layers 120 may include alternating layers of one or more layers of viscoeiastic foam vertically stacked on one or more layers of non-viscoeiastic foam, with the layers of viscoeiastic and non-viscoelastie foam being vertically stacked atop high-resilience foam.
  • Body support 100 may include phase change material 1.40, 240 in the foam layers 120. More specifically, phase change material 140, 240 may be provided in each and every layer of the foam layers 120 of body support 100. Phase change materia! 140, 240 generally provides latent heat storage through a change in phase of the material. For example, and as illustrated in FIGS.
  • phase change material 140, 240 may be a solid-liquid phase change material. Phase change material 140, 240 may be injected., embedded, or infused throughout each of the foam layers 120. For example, phase change material 140, 240 can be included in the foam material as the foam material is introduced into a mold or upon a substrate for curing or otherwise forming into a foam layer. In addition, phase change material 140, 240 may be introduced into each of the foam layers 120 as a gel, or applied as one or more layers of phase change material.
  • FIG. 3 illustrates an encapsulated phase change material ⁇ 40
  • phase change material 142 is contained in a protective capsule 144. Only one protective capsule 144 with phase change material is shown in FIG. 3, it being understood that one, more, or all of the foam layers 120 of the body support include a large number of such capsules 144 therethrough.
  • Capsule 144 allows for storage and retention of material 142, especially after material 142 thermally cyc les from the solid to liquid phase. Effectively, capsule 144 restricts material 142 from flowing away in an unrestricted manner within the body support when in a liquid phase.
  • a suitable phase change material 142 may be any known or future developed solid-liquid or other phase change material which changes phase between 20 to 35 degrees Celsius.
  • An example of suitable material for protective capsule 144 may be any known or future developed material which conducts heat, restricts leakage, and/or restricts corrosion.
  • a specific example may include, but is not limited to, polypropylene or polyolefin.
  • the encapsulated phase change material 140 may be subject to macro-encapsulation, microencapsulation, or molecular-encapsulation.
  • An example of an encapsulated phase change material 140 includes, but is not limited to, gel beads.
  • FIG. 4 illustrates an unencapsulated phase change material 240, or phase change material without encapsulation. Phase change material 240 is substantially the same as phase change material 140, except phase change material 240 does not include protective capsule 144.
  • unencapsulated phase change material 240 generally includes only the phase change material 142.
  • the unencapsulated phase change material 240 may be melted and subsequently introduced as a liquid into a mix head prior to the foam formation process. Then, following formation of each foam layer, the unencapsulated phase change material 240 will be retained by the foam which makes up the foam layer.
  • encapsulated phase change material may be selected for inclusion in such layers rather than unencapsulated phase change material in order to better retain the phase change material within such layer(s) 120.
  • unencapsulated phase change material may still be used in such layer(s) 120 if retained from flowing in other manners.
  • encapsulated phase change material 142 for one or more layers 120 of the body support 100 (e.g., HR foam layers and/or bottommost layer(s) 122) and unencapsulated phase change material 142 for the other layers 120 (e.g., intermediate and/or uppermost viscoelastic layers 124, 126).
  • solid-liquid phase change material 140, 240 will begin in its solid form.
  • the solid-liquid phase change material 140, 240 will absorb heat, such as heat emitted or generated by a user of body support 100.
  • the temperature of the phase change material 142 increases.
  • the material 142 may continue to absorb heat and increase in temperature until the material 142 reaches its melting temperature.
  • the material 142 changes phase from a solid to a liquid.
  • the phase change material 142 continues to absorb heat at an almost constant temperature.
  • the material 142 continues to absorb heat until ail of the material 142 is transformed to its liquid phase.
  • the material 142 remains in its liquid phase and stores heat until the ambient temperature around the materia! 142 begins to decrease.
  • the ambient temperature around the material 142 may begin to decrease when a user stops using body support 100.
  • the phase change material 142 solidifies. While solidifying, material 142 releases stored heat to the ambient surroundings of the body support 100.
  • phase change materials 140, 240 may be provided in each and ever ⁇ ' layer of the foam layers 120 of body support 100, This includes, but is not limited to, introducing phase change material 1 0. 240 to viseoelastic foam layers and non-viscoelastic (e.g., HR) foam layers,
  • body support 100501 By introducing phase change material 1.40, 240 to each and every of the foam layers 120, body support 100 advantageously improves the relative comfort of a user by absorbing heat generated by the user, while minimizing the temperature increase of the body support 100. This is due to the improved thermal capacity of the body support 100 by incorporating phase change material into each of the foam layers 120 of the body support 100.
  • the phase change material 140, 240 of the uppermost layer 126 when used (by absorbing all of the user's body heat that can be retained by the phase change material 140, 240 therein), the phase change material 140, 240 within the intermediate layer 124 can begin or continue to absorb heat from the uppermost layer 126.
  • phase change material 140, 240 in the uppermost layer 126 is absorbed by phase change material 140, 240 in the adjacent intermediate layer 124, thereby permitting the phase change material 140, 240 of the uppermost layer 126 to absorb more heat from the user.
  • the thermal capacity " of the phase change material 140, 240 of the intermediate layer 124 is used (by absorbing all of the heat that can be retained by the phase change material 140, 240 therein)
  • the phase change material 140, 240 within the base layer 122 can begin or continue to absorb heat from the intermediate layer 124.
  • heat shed from phase change material 140 is absorbed by phase change material 140, 240 in the adjacent intermediate layer 124, thereby permitting the phase change material 140, 240 of the uppermost layer 126 to absorb more heat from the user.
  • phase change material 140, 240 in the intermediate layer 324 is absorbed by phase change material 140, 240 in the adjacent base layer 122, thereby permitting the phase change material 140, 240 of the intermediate layer 124 to absorb more heat from the intermediate layer 124.
  • the phase change material in all layers 120 of the body support 100 acts as a conduit for heat away from the user.
  • this resulting heat conduit moves heat to a location where the heat can be shed, such as to or toward a foundation, frame, or other substructure, in these and other embodiments, the use of a lowermost or base foam layer 122 having phase change material as described above can present significant thermal management advantages for the body support 100 compared to other body supports.
  • the body support 100 may more readily control the temperature around the user to a desired relative comfort, as the body support 100 absorbs excess heat generated by the user.
  • sweating, restlessness, or other symptoms caused by a traditional body support (Le,, without phase change material) that may otherwise adversely affect relative comfort may be reduced by the body support 100.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)

Abstract

L'invention concerne un corps de support comprenant une pluralité de couches empilées verticalement, un matériau à changement de phase étant présent dans chacune des couches, et un couvercle enfermant les couches empilées verticalement.
PCT/US2014/034265 2014-04-16 2014-04-16 Support de corps multi-couche présentant un matériau à changement de phase WO2015160337A1 (fr)

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PCT/US2014/034265 WO2015160337A1 (fr) 2014-04-16 2014-04-16 Support de corps multi-couche présentant un matériau à changement de phase
US14/428,159 US20150351557A1 (en) 2014-04-16 2014-04-16 Multi-layer body support having phase change material

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Publication number Priority date Publication date Assignee Title
US20230087762A1 (en) * 2021-09-20 2023-03-23 Dreamwell, Ltd. Mattress assemblies including phase change materials

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2583207T3 (es) * 2012-01-25 2016-09-19 Sealy Technology Llc Espumas diseñadas para las estructuras de colchones de espuma
US20170202362A1 (en) * 2014-04-10 2017-07-20 Neven Sleep, Llc Ventilating sleep system
US9414682B1 (en) * 2015-07-24 2016-08-16 Marcelo Mezzera Layered cushion seat for a chair
USD852541S1 (en) * 2015-08-07 2019-07-02 Soft-Tex International, Inc. Pillow
USD786584S1 (en) * 2015-08-07 2017-05-16 Soft-Tex International, Inc. Pillow
DK3488737T3 (da) * 2015-12-30 2021-11-15 Tempur World Llc Fremgangsmåde til fremstilling af en kølende støttepude
US20170251824A1 (en) 2016-03-07 2017-09-07 Purple Innovation, Llc Cushions including a coated elastomeric cushioning element and related methods
US10455944B2 (en) * 2016-10-17 2019-10-29 Anatoli Chernin Seat cushion
US11807799B2 (en) * 2017-05-08 2023-11-07 Tempur World, Llc Cooling support cushion and related methods
US11071277B2 (en) * 2018-03-21 2021-07-27 Eastern Technologies, Inc. Pet beds and and methods of making and using the same
US20210161301A1 (en) * 2018-08-24 2021-06-03 Soft-Tex International, Inc. Cooling mattresses, pads or mats, and mattress protectors
US11849847B1 (en) * 2019-01-14 2023-12-26 Jared Heath Modular mattresses
US11878830B2 (en) * 2019-06-25 2024-01-23 Sinomax-Usa, Inc. Container for consumer products
US11395550B2 (en) * 2020-08-27 2022-07-26 Dreamwell, Ltd. Mattress topper including convoluted foam layer
US12004654B2 (en) * 2020-08-27 2024-06-11 Dreamwell, Ltd. Compressible mattress
US11793323B2 (en) * 2020-08-27 2023-10-24 Dreamwell, Ltd. Compressible mattress
US20230067095A1 (en) * 2021-08-29 2023-03-02 Emedeez Llc Apparatus for convertible and selectable mattress firmness

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070245493A1 (en) * 2006-04-20 2007-10-25 Dan-Foam Aps Multi-component pillow and method of manufacturing and assembling same
US20090165213A1 (en) * 2005-06-24 2009-07-02 Chris Collins Reticulated material body support and method
US20100263128A1 (en) * 2008-05-23 2010-10-21 Lean John T Latex foam bedding products including phase change microcapsules
US8037562B2 (en) * 2008-09-05 2011-10-18 Kemper Support Surfaces, Inc. Tension relieving body support apparatus
WO2014018062A1 (fr) * 2012-07-27 2014-01-30 Tempur-Pedic Management, Inc. Coussin soutenant le corps comportant plusieurs couches de matière à changement de phase

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090165213A1 (en) * 2005-06-24 2009-07-02 Chris Collins Reticulated material body support and method
US20070245493A1 (en) * 2006-04-20 2007-10-25 Dan-Foam Aps Multi-component pillow and method of manufacturing and assembling same
US20100263128A1 (en) * 2008-05-23 2010-10-21 Lean John T Latex foam bedding products including phase change microcapsules
US8037562B2 (en) * 2008-09-05 2011-10-18 Kemper Support Surfaces, Inc. Tension relieving body support apparatus
WO2014018062A1 (fr) * 2012-07-27 2014-01-30 Tempur-Pedic Management, Inc. Coussin soutenant le corps comportant plusieurs couches de matière à changement de phase

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230087762A1 (en) * 2021-09-20 2023-03-23 Dreamwell, Ltd. Mattress assemblies including phase change materials

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