WO2022190140A1 - Revêtement confortable pour surfaces de repos et accueillant au moins une partie du corps d'un utilisateur - Google Patents

Revêtement confortable pour surfaces de repos et accueillant au moins une partie du corps d'un utilisateur Download PDF

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Publication number
WO2022190140A1
WO2022190140A1 PCT/IT2021/000009 IT2021000009W WO2022190140A1 WO 2022190140 A1 WO2022190140 A1 WO 2022190140A1 IT 2021000009 W IT2021000009 W IT 2021000009W WO 2022190140 A1 WO2022190140 A1 WO 2022190140A1
Authority
WO
WIPO (PCT)
Prior art keywords
insert
pad
foam
user
layer
Prior art date
Application number
PCT/IT2021/000009
Other languages
English (en)
Inventor
Luca Cassani
Original Assignee
Osca S.R.L.
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 Osca S.R.L. filed Critical Osca S.R.L.
Priority to PCT/IT2021/000009 priority Critical patent/WO2022190140A1/fr
Priority to EP21723018.4A priority patent/EP4304417A1/fr
Publication of WO2022190140A1 publication Critical patent/WO2022190140A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/24—Upholstered seats
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/18—Seat parts having foamed material included in cushioning part

Definitions

  • the present invention relates to a comfortable covering for surfaces for resting and accommodating at least one part of the body of a user.
  • Paddings offer the advantage of making the surface soft and therefore more comfortable.
  • padding can be comfortable only for a predefined length of time, at the end of which its thickness may be reduced to the point where it no longer offers the necessary damping.
  • the comfort in some cases can also be compromised by the fact that the heat emanating from the body of the user determines a slight softening of the padding which then cannot ensure the constancy of its elastic performance during use.
  • the main aim of the present invention is to solve the above mentioned drawbacks, by providing a comfortable covering for surfaces for resting and accommodating at least one part of the body of a user that maintains its mechanical characteristics unchanged for a long time.
  • an object of the invention is to provide a comfortable covering for surfaces of limited thickness for resting and accommodating at least one part of the body of a user.
  • Another object of the invention is to provide a comfortable covering for surfaces for resting and accommodating at least one part of the body of a user that does not modify the overall design of the product on which it is installed.
  • Another object of the invention is to provide a comfortable covering for surfaces for resting and accommodating at least one part of the body of a user that does not undergo a degradation of its mechanical performance when it is continuously exposed to a temperature close to the body temperature of a user.
  • Another object of the invention is to provide a comfortable covering for surfaces for resting and accommodating at least one part of the body of a user that adapts optimally to the anatomy of the user.
  • Another object of the present invention is to provide a comfortable covering for surfaces for resting and accommodating at least one part of the body of a user that is of low cost, easily and practically implemented, and safe in use.
  • a comfortable covering for surfaces for resting and accommodating at least one part of the body of a user characterized in that it comprises:
  • At least one stratified insert which is integral with said pad, at least one first layer of said insert being made of material preferably chosen among leather, polymeric material, fabric, microfiber, rubber, natural fibers and the like, and at least one second layer of said insert being made of material of the type preferably chosen from a heat- sensitive viscoelastic polymeric foam, a polymeric gel, a silicone gel and the like.
  • Figure 1 is a schematic perspective view of a possible embodiment of an insert of a comfortable covering for surfaces for resting and accommodating at least one part of the body of a user according to the invention
  • Figure 2 is a schematic perspective view of an example of a comfortable covering for surfaces for resting and accommodating at least one part of the body of a user;
  • Figure 3 is a schematic perspective view of an example of a further comfortable covering for surfaces for resting and accommodating at least one part of the body of a user;
  • Figure 4 is a schematic perspective view of a first example of application of the covering of Figure 3;
  • Figure 5 is a schematic perspective view of a second example of application of the covering according to the invention.
  • Figure 6 is a schematic perspective view of a third example of application of the covering according to the invention.
  • Figure 7 is a schematic perspective view of a fourth example of application of the covering according to the invention.
  • Figure 8 is a schematic perspective view of a fifth example of application of the covering according to the invention.
  • Figure 9 is a schematic perspective view of a sixth example of application of the covering according to the invention.
  • the reference numeral 1 generally designates a comfortable covering for surfaces A, B, C, D, E, F, G for resting and accommodating at least one part of the body of a user.
  • the comfortable covering 1 according to the invention comprises at least one substantially laminar pad 2 which can be coupled to the surface A, B, C, D, E, F, G and at least one stratified insert 3 which is integral with the pad 2.
  • the insert 3 will advantageously be constituted by at least one first layer 4 made of material preferably chosen among leather, polymeric material (of these, of particular interest are fabrics coated in PVC and other polymers with similar characteristics), fabric, microfiber, rubber, natural fibers and the like, and at least one second layer 5 being made of material of the type preferably chosen from a heat- sensitive viscoelastic polymeric foam, a polymeric gel, a silicone gel and the like.
  • first layer 4 made of material preferably chosen among leather, polymeric material (of these, of particular interest are fabrics coated in PVC and other polymers with similar characteristics), fabric, microfiber, rubber, natural fibers and the like
  • second layer 5 being made of material of the type preferably chosen from a heat- sensitive viscoelastic polymeric foam, a polymeric gel, a silicone gel and the like.
  • the pad 2 and the outer layer 4 of the insert 3 partially coincide (only at some points or for the entire covering 1).
  • a possible example of a heat-sensitive viscoelastic foam is the material known as "memory foam", although the possibility is not ruled out of using different viscoelastic foams that offer a mechanical behavior that is similar or, for specific applications, more viscous or more elastic than memory foam.
  • the covering 1 according to the invention can be provided in place of traditional paddings, but also in combination with them, in order to obtain optimal ergonomics of the product comprising the surface A, B, C, D, E, F, G on which it will be installed, thus also ensuring the maintenance of an ideal posture of the user.
  • the second layer 5 made of material of the type preferably chosen from a heat-sensitive viscoelastic polymeric foam, a polymeric gel, a silicone gel and the like, will be such as to maintain its mechanical characteristics in the long term (as it does not undergo a degradation owing to prolonged use or owing to the body temperature of the user) and this will make it possible to maintain constant over time the properties that make it adapted to ensure optimal ergonomics (thus ensuring that the user maintains an ideal posture even after a protracted use over time or even after several years after installation).
  • the heat- sensitive viscoelastic polymeric foam that constitutes the second layer 5 of the insert 3 is of type preferably chosen from a polyurethane foam, a low-resilience polyurethane foam, a polyethylene terephthalate foam, a low-resilience polyethylene terephthalate foam, a sorbothane foam, a low-resilience sorbothane foam, a polychloroprene foam (better known with the commercial name "neoprene", a low-resilience polychloroprene foam and the like.
  • “memory foam” is a material developed by the aeronautics industry in the 1960s. Memory foam is effectively a polymeric foam with slow elastic return, upon cessation of the deforming stress. This type of foam has been created by adding gas to a polymeric matrix: the foam has a solid open-cell structure that is sensitive to temperature: that is to say, it is a viscoelastic foam that modifies itself in relation to the heat of the stressing body, modeling itself perfectly to the curvature thereof in a short time and uniformly distributing the pressures exerted.
  • foam with memory effect also ensure an optimal redistribution of the pressures exerted even though they have very slender thicknesses: such specific versions are particularly indicated for some of the possible applications of the covering 1 according to the invention.
  • the second layer 5 of the insert 3 is constituted by a polymeric gel, a silicone gel and the like, a conventional gel is adopted that is already used in various sectors of the art.
  • the heat-sensitive viscoelastic polymeric foam of the second layer 5 can profitably comprise particles of gel.
  • the second layer 5 of the insert 3 will be constituted by a gelatinous elastomeric foam of polymers that contains at least one phase change material.
  • Viscoelastic polymeric foams tend to retain heat and this can be a disadvantage, therefore, in many cases, the use of gelatinous elastomeric foam of polymers containing at least one phase change material (also known as viscous gel or foam gel with shape memory) can be an advantageous choice of particular interest.
  • phase change material also known as viscous gel or foam gel with shape memory
  • Such material is constituted by particles of gel merged with viscoelastic foam which help accelerate the elastic return time, thus making it independent of the temperature of the body that exerted the deforming stress.
  • This gel-based viscoelastic foam can be identified as a viscoelastic foam of the type of those described previously in which "capsules" are dispersed containing the gel which, as a phase change material, ensures the stabilization of the desired temperature by passing from a solid state to a fluid state (by virtue of the latent phase change heat necessary to change state) within the capsule.
  • the covering 1 can comprise a single insert 3 or a plurality of these, arranged according to any pattern, according to the specific application requirements.
  • the inserts 3 can have any shape.
  • An additional physical characterization of the heat-sensitive viscoelastic polymeric foam that constitutes the second layer 5 relates to the density of such material, which will need to be comprised between 15 kg/m 3 and 150 kg/m 3 .
  • the insert 3 (or inserts 3) can conveniently be coupled to the pad 2 by way of a process preferably chosen from adhesive bonding, heat welding, ultrasonic welding, stitching and the like.
  • the coupling between the pad 2 and the insert 3 will be carried out so as to define a substantial regular continuity of the increase in thickness between a first face 6 of the pad 2 and the lateral edges of the at least one insert 3.
  • the material that constitutes the first layer 4 of the insert 3 is thermoplastic in nature, so as to allow the heat welding or ultrasonic welding thereof to the first face 6 of the pad 2.
  • the first face 6 of the pad 2 which comprises the insert 3 (or inserts 3) can be stably coupled to the surface A, B, C, D, E, F, G for resting and accommodating at least one part of the body of a user.
  • the first face 6 of such pad 2 will be arranged opposite from a second face of the pad 2 which will be stably coupled to the surface A, B, C, D, E, F, G.
  • the insert 3 (or inserts 3) can be directed toward the outside or surmounted by the pad 2, in the possible installation configurations of the covering 1 according to the invention on the surface A, B, C, D, E, F, G.
  • the covering 1 in the first case illustrated (insert 3 directed outward) it is possible for the covering 1 to also comprise, advantageously, at least one additional stratification 7 (optional) of overlay of the pad 2.
  • each covering 1 can comprise a single insert 3 or a plurality thereof, distributed homogeneously or designating zones with a greater presence of inserts 3 and zones with a lesser presence thereof.
  • the inserts 3 can have any shape, such as for example that of geometric figures (circles, polygons) or even specific outlines designed to provide a better adaptation to the part of the body of the user that is to be placed on the surface A, B, C, D, E, F, G.
  • each insert 3 can comprise, in addition to the layer of covering 4 and to the inner layer 5, a further damping layer (not shown in the accompanying figures).
  • the further damping layer can, in turn, be constituted by expanded polymers, a fluid (for example a water-filled cushion), a gas (for example a gas-filled cushion), feathers, wool (both natural and artificial) and combinations thereof.
  • the insert 3 will combine the softness typical of the materials that constitute the damping layer, with the comfort typical of the layer 5 of heat-sensitive viscoelastic material.
  • the damping layer is constituted by a bag filled with fluid or a bag filled with gas, the possibility is not ruled out of varying its pressure (by way of an external conveyance circuit) in order to obtain massaging effects and antidecubitis effects and/or in order to heat/cool the covering itself.
  • the present invention also relates to an item of furniture A, B, C, F that advantageously comprises a surface for resting and accommodating at least one part of the body of a user which is at least partially covered by a comfortable covering 1 according to what explained above.
  • the covering 1 can be applied to the sitting surface A and/or to the backrest B of a chair, to the sitting surface of a bench C, to a counter F of any commercial concern (on which the user could place his or her elbows), and to any other item of furniture (including urban furnishings) that is designed to support (at least partially) a user.
  • the present invention also relates to any user- supporting portion D of an apparatus for sports training (such as for example a bench for gyms, the seat portion of a rowing machine, the seat portion of a multifunctional training apparatus and the like) that positively comprises a surface at least partially covered by a comfortable covering 1 according to what explained above.
  • an apparatus for sports training such as for example a bench for gyms, the seat portion of a rowing machine, the seat portion of a multifunctional training apparatus and the like
  • a comfortable covering 1 according to what explained above.
  • the scope of protection defined by the present invention also comprises an operating chair E, G for health and personal care services (such as for example the chair E of a dentist or of an ophthalmologist, the operating table G of a beauty center, physiotherapy center or medical center and the like) that comprises a resting contact surface that is at least partially covered by a comfortable covering 1 according to what explained above.
  • an operating chair E, G for health and personal care services such as for example the chair E of a dentist or of an ophthalmologist, the operating table G of a beauty center, physiotherapy center or medical center and the like
  • a resting contact surface that is at least partially covered by a comfortable covering 1 according to what explained above.
  • further applications are not ruled out, such as in surfaces on which the operator of industrial or agricultural machinery can sit or rest, or in the automotive industry (both for the seats and for the coverings of the interior surfaces in order to make them more original and pleasant to the touch) or for a passenger of a vehicle (by way of example the benches or seats of a coach,
  • the present invention also relates to a method for increasing the comfort of surfaces A, B, C, D, E, F, G designed to accommodate or support at least one part of the body of a user that consists of a series of consecutive steps.
  • At least one stratified insert 3 that comprises at least one outer first layer 4 made of material preferably chosen among leather, polymeric material, fabric, microfiber, rubber, natural fibers and the like, and at least one second layer 5 being made of material of the type preferably chosen from a heat- sensitive viscoelastic polymeric foam, a polymeric gel, a silicone gel and the like.
  • a subsequent second step it is necessary to juxtapose the insert 3 (or inserts 3) with a first face 6 of a laminar pad 2 and couple it thereto by way of a process preferably chosen from adhesive bonding, heat welding, ultrasonic welding, stitching and the like. After coupling, a substantial regular continuity will be defined of the increase in thickness between the first face 6 of the pad 2 and the lateral edges of the at least one insert 3.
  • the pad 2 (provided with the at least one insert 3 coupled to its first face 6) to cover a surface A, B, C, D, E, F, G that is designed to accommodate or support at least one part of the body of a user.
  • Such third step necessitates the juxtaposition on such surface A, B, C, D, E, F, G of one of the faces (the face 6 or the one arranged opposite) of the pad 2 which is provided with the at least one insert 3.
  • the method according to the invention also envisages an optional fourth additional step during which the deployment is carried out of at least one additional stratification 7 of overlay of the pad 2.
  • an additional stratification 7 the covering 1 will be overlaid and the inserts 3, even if they are facing outward, will be protected from impacts and wear.
  • the present invention solves the above mentioned problems, by providing a comfortable covering 1 for surfaces A, B, C, D, E, F, G for resting and accommodating at least one part of the body of a user that maintains its mechanical characteristics unchanged for a long time, by virtue of the viscoelastic properties of the second layer 5 that constitutes the insert 3.
  • the comfortable covering 1 according to the invention can have limited thickness, even very limited thickness, in particular if the material that constitutes the second layer of the insert 3 is high density (with reference to the possible ranges of this parameter indicated previously).
  • the comfortable covering 1 according to the invention does not modify the overall design of the product on which it is installed, in particular in the case of inserts 3 of slender thickness which will be scarcely noticeable in the overall appearance of the product on which they are installed.
  • the comfortable covering 1 according to the invention does not undergo a degradation of its mechanical performance when it is continuously exposed to a temperature close to the body temperature of a user, and this is related to the fact that the second layer 5 of the insert 3 is made of a heat-sensitive viscoelastic foam, which, by comprising additives constituted by phase change (or state change) materials, makes it possible to maintain the temperature of the insert 3 substantially constant, thus stabilizing the respective mechanical properties.
  • the comfortable covering 1 adapts optimally to the anatomy of the user, given that the viscoelastic foams that constitute the second layer 5 of the insert 3 are adapted to be deformed without problems of a hysteretic nature, by optimally hugging the stressing body (of which they homogeneously redistribute the pressure).
  • the comfortable covering 1 according to the invention is easily and practically implemented and is of low cost: such characteristics make the comfortable covering 1 (and all the products that can be equipped with same) an innovation that is certain to be put into practical use.

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  • Mattresses And Other Support Structures For Chairs And Beds (AREA)

Abstract

Revêtement confortable (1) pour surfaces (A, B, C, D, E, F, G) destinées au repos et à l'accueil d'au moins une partie du corps d'un utilisateur, qui comprend au moins un coussinet sensiblement laminaire (2) qui peut être accouplé à la surface (A, B, C, D, E, F, G) et au moins un insert stratifié (3) qui est solidaire du coussinet (2). Au moins une première couche (4) de l'insert (3) est constituée d'un matériau choisi de préférence parmi du cuir, un matériau polymère, un tissu, une microfibre, du caoutchouc, des fibres naturelles et analogues, et au moins une seconde couche (5) est constituée d'un matériau du type choisi de préférence parmi une mousse polymère viscoélastique sensible à la chaleur, un gel polymère, un gel de silicone et analogues.
PCT/IT2021/000009 2021-03-09 2021-03-09 Revêtement confortable pour surfaces de repos et accueillant au moins une partie du corps d'un utilisateur WO2022190140A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/IT2021/000009 WO2022190140A1 (fr) 2021-03-09 2021-03-09 Revêtement confortable pour surfaces de repos et accueillant au moins une partie du corps d'un utilisateur
EP21723018.4A EP4304417A1 (fr) 2021-03-09 2021-03-09 Revêtement confortable pour surfaces de repos et accueillant au moins une partie du corps d'un utilisateur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2021/000009 WO2022190140A1 (fr) 2021-03-09 2021-03-09 Revêtement confortable pour surfaces de repos et accueillant au moins une partie du corps d'un utilisateur

Publications (1)

Publication Number Publication Date
WO2022190140A1 true WO2022190140A1 (fr) 2022-09-15

Family

ID=75769666

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2021/000009 WO2022190140A1 (fr) 2021-03-09 2021-03-09 Revêtement confortable pour surfaces de repos et accueillant au moins une partie du corps d'un utilisateur

Country Status (2)

Country Link
EP (1) EP4304417A1 (fr)
WO (1) WO2022190140A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104786894A (zh) * 2015-04-01 2015-07-22 天津车邦化工贸易有限公司 多功能按摩汽车用全包围脚垫
US20180105976A1 (en) * 2016-10-19 2018-04-19 Hyundai Motor Company Artificial leather with three-dimensional pattern and manufacturing method thereof
US20200345152A1 (en) * 2019-05-03 2020-11-05 Jennifer Humble Non-slip cushion

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104786894A (zh) * 2015-04-01 2015-07-22 天津车邦化工贸易有限公司 多功能按摩汽车用全包围脚垫
US20180105976A1 (en) * 2016-10-19 2018-04-19 Hyundai Motor Company Artificial leather with three-dimensional pattern and manufacturing method thereof
US20200345152A1 (en) * 2019-05-03 2020-11-05 Jennifer Humble Non-slip cushion

Also Published As

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