比利时专利BE1023512B1 VISCOELASTIC FOAM PRODUCT WITH INSERTS

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专利摘要:
The present invention relates to a foam article, such as a mattress or pillow, which comprises a viscoelastic foam layer, the viscoelastic foam layer having foam inserts embedded therein which extend in the transverse direction of the article and which provide support to the body.
公开号:BE1023512B1
申请号:E2015/5703
申请日:2015-10-29
公开日:2017-04-12
发明作者:Martin Diks；Karel Poelmans
申请人:Perzona International B.V.；Perzona Benelux B.V.；
IPC主号:

专利说明:

VISCOELASTIC FOAM PRODUCT WITH INSERTS TECHNICAL AREA
The invention relates to the technical field of personalized sleep products, such. As mattresses or pillows made of foam material.
BACKGROUND
A wrong sleeping situation can be the cause of many problems, especially back problems. This is often due to the use of a sleep system that is not adapted to the personal needs and characteristics of the user. In addition, if couples sleep together, the mattress used is often not adapted to the personal form of the user. In particular, if more than one person uses the same mattress, this can lead to problems. Important features for sleep products, such. As mattresses or pillows, are the offered support and their ability to reduce pressure in certain areas.
Today, personalized systems are known that attempt to provide a product based on the needs of the user. The user is measured and a product proposed which, selected from a range of standard products, offers the "best fit". In most cases, the optimal system is calculated based on the length of the user, with the support ranges determined based on the measured length. This zoning differs from user to user, making it difficult to offer a mattress suitable for more than one person.
The aim of other prior art systems is to offer a product that does not offer a pressure-reducing solution but provides an optimal weight distribution. Visco-elastic or memory-foam mattresses and pillows are known to provide optimal weight distribution. However, these products have disadvantages in that they do not breathe, and because the material literally encloses the body, it is very difficult to advance the use of such products. These are disadvantages that should be avoided.
WO 2014 105 045 describes a viscoelastic foam mattress with inserts in the longitudinal direction of the mattress which improve the mobility of the user on the mattress. The mattress of document WO 2014 105 045 does not provide a personalized tailor-made product that provides support at the required locations.
In US 2005 278 852 an upper layer for a mattress is described, which consists of a viscoelastic foam, which is provided with support cores. Although the cores may be located in regions that match pronounced positions of a user's body, document US '852 does not provide a product that is personalized to the user.
Also in US 2014 059 776 a foam-based mattress overlay with different layers of different density is described. However, document US 2014 059 776 fails to describe a personalized mattress with inserts arranged according to the distinct regions of a user's body.
The aim of the present invention is to solve at least some of the above-mentioned problems. The invention aims to provide personalized, tailor-made sleep products such. As mattresses or pillows, which have pressure-reducing properties and yet provide sufficient support for the body or body parts and have optimal respiratory capabilities.
BRIEF SUMMARY OF THE INVENTION
The present invention provides a foam article, such. A mattress according to claim 1, a bed according to claim 13 and a method according to claim 15. The article according to the present invention provides an optimal and personalized sleep.
The present invention may thus be described by the following embodiments: 1. A foam article, such as a mattress or pad, comprising a viscoelastic foam layer, the viscoelastic foam layer having foam inserts embedded in voids of the viscoelastic foam and located in the Transverse direction of the
Articles, characterized in that the inserts have a density of 20 to 80 kg / m3. 2. foam article according to embodiment 1, characterized in that the hardness of the inserts is 1.5 to 6 kPa. 3. Foam article according to one of the preceding embodiments, characterized in that the inserts are made of highly elastic polyurethane foam. 4. Foam article according to one of the preceding embodiments, characterized in that the inserts have a round, hexagonal, square or rectangular cross-sectional shape. 5. Foam article according to one of the preceding embodiments, characterized in that the article is provided with an upper layer which is disposed over the viscoelastic foam layer. 6. Foam article according to embodiment 6, characterized in that the upper layer consists of polyurethane foam with embedded gel particles. 7. Foam article according to one of the preceding embodiments, characterized in that the inserts are spaced, wherein each position of the inserts coincides with a position on the body of the user, which requires support. 8. Foam article according to one of the preceding embodiments, characterized in that the inserts have the same or different densities. 9. Foam article according to one of the preceding embodiments, characterized in that the inserts extend over the entire width of the article. 10. Foam article according to one of the preceding embodiments, characterized in that the inserts have a tensile strength of 50 to 150 kPa. 11. Foamed article according to one of the preceding embodiments, characterized in that the elasticity is 40 to 75%. 12. Foam article according to one of the preceding embodiments, characterized in that the inserts are arranged in the foam article on the basis of anthropometric parameters, which were determined by a user. 13. A bed provided with a foam article according to Embodiments 1 to 12. 14. Bed according to the embodiment 13, characterized in that the article is a mattress. A method of making a foam article having non-viscoelastic inserts, comprising: - determining one or more anthropometric parameters of a person intending to use the foam article; Determining the characteristics and position of the inserts in the article based on the parameters; and inserting the inserts into cavities of the viscoelastic layer. 16. A method of providing a personalized bed system to an individual, the method comprising: determining a depth image of the subject's body using a depth camera or depth sensor system; Determining, based on the depth image, the anthropometric parameter, the age and / or sex of the individual; Determining, based on the anthropometric parameters, the position and / or hardness of the body support elements in a bed system for the individual. 17. Method according to embodiment 16, characterized in that the depth image comprises a three-dimensional skeleton model or a mesh model. 18. Method according to one of the preceding embodiments, characterized in that the anthropometric parameters comprise the data of body mass index, weight, position of shoulder, loin / hip, thighs, knees, lower legs and / or feet. 19. The method according to any one of the preceding embodiments, characterized in that the individual is placed on a marked position of a floor. 20. Method according to one of the preceding embodiments, characterized in that the analysis of the determined parameters and the determination of the body support elements in the bed system is computer-implemented. 21. Method according to one of the preceding embodiments, characterized in that the bed system is provided with support elements which correspond to places of the body of the individual for which the depth image revealed that they require support. 22. The method according to any one of the preceding embodiments, characterized in that the support elements by means of transverse inserts in the bed system, preferably tubular inserts are provided. 23. The method according to embodiment 22, characterized in that the bed system consists of a viscoelastic foam layer with highly elastic polyurethane foam insert parts as support elements. A system for providing a personalized bed system to an individual, the system comprising: one or more depth camera or depth sensor systems for producing a depth image of the subject, the depth camera systems connected to an imaging system; and a processing device, characterized in that the processing device is provided with an algorithm to determine the anthropometric parameters of the depth image and to associate the parameters with a position and / or hardness of the body support elements in a bed system. The system of embodiment 24, characterized in that the system further comprises a positioning mark for the individual.
DESCRIPTION OF THE FIGURES
Figures 1a and 1b show a cross-sectional view of a foam article according to an embodiment of the present invention.
Figures 2a-2c show different embodiments of the inserts in a foam article according to an embodiment of the present invention.
Figures 3a-3c show a cross-sectional view along a longitudinal axis of the different embodiments of the present invention.
FIG. 4 shows a detailed view of an embodiment of a mattress according to the present invention.
Figure 5 shows a bed according to an embodiment of the present invention. Figure 6 shows a cushion according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION
The present invention relates to a foam article, such as. A mattress or pad comprising a viscoelastic foam layer having pressure reducing capabilities. To provide support at significant locations of the user's body, the viscoelastic foam layer includes inserts that provide support. These inserts are disposed in cavities of the foam layer at positions that correspond to particular body locations of the user. To accomplish this, the user's body is scanned and the exact position of the inserts in the article and the characteristics determined based on the determined parameters. In this way, a personalized article is provided, which offers the user optimal support.
Apart from the optimum body support, the foam article of the present invention also provides good ventilation and comfort in use.
Unless defined otherwise, all terms used in the disclosure of 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. For further interpretation aid, terms of expression have been included which serve to better understand the teachings of the present invention.
The following terms, as used throughout this document, have the following meanings: "a", "an", "an" and "the" as used herein refer to both single and multiple as well as plural reference information, unless the context clearly says otherwise. For example, "one compartment" refers to one or more compartments.
The term "approx." As used here to a measurable value, such. Example, a parameter, an amount, a time duration and the like is used is to be understood that it variations of +/- 20% or less, preferably from +/- 10% or less, more preferably from +/- 5 % or less, more preferably of +/- 1% or less and even more preferably of +/- 0.1% or less of the stated value, where such variations are suitable for the practice of the disclosed invention. It is understood, however, that the value to which the determinative word "approx." itself is also specifically disclosed. As used herein, "comprising," "comprising," and "comprising," are synonymous with "include," "includes," "includes," "includes," "contains," and are inclusive or open expressions that indicate the existence of what follows, e.g. The component, and does not exclude the presence of additional, non-enumerated components, features, elements, members, steps known in or disclosed in the art.
The specification of numeric ranges by endpoints includes all numbers and fractions summarized in the range, as well as the specified endpoints.
The term "weight%" (weight percent) herein and throughout the specification, unless defined otherwise, refers to the relative weight of the particular component, based on the total weight of the formulation.
In a first aspect, the present invention provides a foam article, such. A mattress or pad, which comprises a viscoelastic foam layer, the viscoelastic foam layer having foam inserts embedded in cavities of the viscoelastic foam. These inserts have an elongated extent in the transverse direction of the article. For the purpose of the present invention, "transverse" is to be understood as parallel to the width of the article. More precisely, transverse is also to be understood as a direction perpendicular to the longitudinal axis of a body of the user.
Viscoelastic foam is known to have a pressure-reducing ability. Visco-elastic foam mattresses and pillows create a 'floating' experience where the body enters a virtual state of weightlessness during sleep. It was long ago discovered that sleeping in this limbo was the most optimal way to eliminate or prevent ergonomic problems.
The inventors of the present invention have found that this is not entirely accurate and that there is a need to remove the weightlessness characteristic at certain locations of the article in order to provide the necessary support to the user.
For this purpose, the inventors have found that the foam inserts should advantageously have a density of from 20 to 80 kg / m 3, particularly preferably from 25 to 65 kg / m 3. This density is measured according to the standard ISO 845 (revised in 2013). By providing inserts in the transverse direction at several intervals in the article according to the present invention, support points are provided for the body of the user. These places enhance the ergonomic character of the item and ensure an optimal sleep experience. It was found that outside of this area, the inserts either did not provide enough support or the comfort for the users decreased.
In a further or separate embodiment, the inserts have a hardness of 1.5 to 6 kPa, more preferably from 1.9 to 5 kPa, which is measured according to the standard ISO 1798 (revised in 2011). Again, it has been found that this range of pressure loading provides the support needed for the purpose of the present invention.
In a more preferred embodiment, 5 classes of inserts may be used in the present invention, with the inserts classified by hardness. In a preferred embodiment, the class I (extra soft) has a hardness of 1.5 to 2.5 kPa, the class II (soft) a hardness of 2.5 to 3.5 kPa, the class III (medium) a hardness from 3.5 to 3.9 kPa, Class IV (solid) has a hardness of 4 to 4.5, and Class V (solid) has a hardness of 4.5 to 5.5.
In still another or separate embodiment, the article has a tear strength of greater than 50 kPa, preferably from 50 to 150 kPa, measured according to ISO standard 1798 (revised in 2011). In yet another or different embodiment, the maximum deformation is greater than 50 and is preferably from 60 to 160, which size is also measured according to ISO standard 1798.
The ball-rebound resilience of the inserts is preferably greater than 40 and more preferably from 50 to 80%, which size is measured in accordance with ISO standard 8307 (revised in 2010).
The compression of the inserts is preferably less than 10, the size being measured according to the ISO 1856 standard. The wet compression measured according to NFT 56 112 is preferably lower than 50.
In principle, the inserts can be made of any suitable foam with the characteristics described above. Preferably, the foam inserts are made of a highly elastic (HR) foam or a cold foam. For the purpose of the present invention, the term HR foam is understood to mean a grade of polyurethane foam made using a blend of polymer or graft polyols. Highly elastic foam has a less uniform (more disordered) cell structure, which differs from conventional products. The other cell structure contributes to an extra level of support, comfort, as well as elasticity or rebound. Highly elastic foams have a high supporting factor and a larger one
Surface elasticity than conventional foams and are defined in the now withdrawn ASTM D3770. It has been found by the inventors that the combination of viscoelastic foam with HR inserts provides the perfect combination of pressure reducing characteristics and support.
In one embodiment, the HR foam may be non-reticulated. In another embodiment, the HR foam may be reticulated.
Many HR foams are known in the art. Suitable foams that may be used in one embodiment of the present invention include, but are not limited to, HR28, HR38, HR43, HR45, HR55M, HR60.
In the preferred embodiment, the inserts have a maximum diameter of 3 to 6 cm, e.g. B. of about 4 cm, on. Diameters outside this range are either not effective or affect the comfort of the user. Preferably, the inserts have a round, hexagonal, square or rectangular cross-sectional shape. In a most preferred embodiment, the 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 example, the insert may be an array of balls at regular locations on such a transverse line. In another embodiment, the insert may be an array of cylinders, preferably of equal dimensions, at discrete intervals along the transverse line. In yet another most preferred embodiment, the inserts extend the full width of the article.
In the case of a mattress, the inserts may be provided in cavities extending from one side of the mattress to the other side, the inserts spanning the entire width of the mattress. Alternatively, for example, for a double mattress inserts can be provided, which span only half of the mattress. In such a case, a two-person mattress is provided that is personalized for two users, with one half of the inserts arranged according to the parameters determined by one user and the other half adapted for a second user.
In one embodiment, all of these inserts in the article are of the same type, that is, equal density, hardness, elasticity, etc. In another embodiment, each position may be provided with different inserts, the term being to be understood to differ dimension, cross-sectional shape and / or characteristic (eg different density or hardness). These differences can be calculated based on the parameters determined by a body scan or body measurement of the user. In a most preferred embodiment, each such insert has a hardness determined based on the user-determined anthropometric parameters. Such parameters can be determined by scanning the user.
In still another embodiment, the individual inserts may themselves consist of different layers of material that meet the requirements described above. This may be necessary if, for example, the user's body scan shows that the user's body needs a very specific support at a particular location.
In general, the present invention provides a product comprising inserts as described above, wherein the inserts are positioned at relative positions in the product and according to the specific positions and / or body parts of a product
User are arranged. The user is measured to determine one or more anthropometric parameters, and the position and / or hardness of the inserts are selected based on the determined parameter.
The viscoelastic foam layer forms the predominant part of the article. Preferably, the viscoelastic foam has a hardness of at least about 20 N and not greater than about 80 N for desirable softness and body conforming properties. In other embodiments, the viscoelastic foam layer may have a hardness of at least about 30 N and not greater than about 70 N. In yet other embodiments, the viscoelastic foam layer may have a hardness of at least about 40 N and not greater than about 60 N. Unless otherwise specified, the hardness of each foam material referred to herein is measured by applying pressure from a plate against a sample of the material to a compression of 40% of an initial thickness of the material at about room temperature (e.g. 21-23 degrees Celsius), with the 40% compression being maintained for a predetermined period of time, in accordance with ISO 2439.
The viscoelastic foam layer also includes a density that provides a relatively high degree of material resistance. The density of the viscoelastic foam layer may also affect other properties of the foam, e.g. For example, the manner in which the viscoelastic foam layer reacts to pressure, as well as the grip of the foam. In some embodiments, the viscoelastic foam layer 122 may have a density of not less than about 30 kg / m 3 and not greater than about 150 kg / m 3. In other embodiments, the viscoelastic foam layer may have a density of at least about 40 kg / m 3 and not greater than about 135 kg / m 3. In still other embodiments, the viscoelastic foam layer may have a density of at least about 50 kg / m 3 and not greater than about 120 kg / m 3.
In one embodiment, the viscoelastic foam may be a non-reticulated foam (that is, with intact cells) or a reticulated foam (open cell skeletal cellular structure).
In one embodiment, the viscoelastic layer may be provided with an upper layer disposed over the upper surface of the viscoelastic layer and supported by the latter. The upper layer is a non-viscoelastic layer. In one embodiment, the non-viscoelastic top layer may rest on the viscoelastic layer without being attached thereto. In another embodiment, the layers may be secured together by an adhesive or cohesive bonding material and / or joined together in the formation of the layers. Adhesive tape, hook and loop fastener material, conventional fastening means, stitching stitches that extend at least partially through the layers, or other means of a number of different structures or processes may be used to secure the layers together. For example, thin adhesive strips (not shown) may be placed between the layers. Such adhesives may extend the full width and length of the article, or may instead extend only over discrete portions of the width and / or length of the article. Such adhesive strips are flexible enough to form a softer microstructure than other, more conventional pressure-sensitive adhesives.
Both the upper surface and the lower surface of the foam layers may be substantially planar. In other embodiments, at least one of the top surface and the bottom surface may not be flat and include, but are not limited to, surfaces having ridges, bumps, corrugations and other protrusions of any shape and size, as well as surfaces including grooves and others Have openings that extend partially or completely through the foam layers and the like.
In one embodiment, the top layer is preferably a soft polyurethane foam or a viscoelastic foam. The top layer preferably improves the breathability of the article. Viscoelastic foam material does not have good ventilation or breathing properties. Adding a non-viscoelastic top layer further enhances the breathability of the article. If the article is a mattress, it prevents the user from perspiring during sleep.
In a most preferred embodiment, the top layer is a water-based (polyurethane) foam containing polyols, preferably polyols of vegetative origin. The foam is particularly preferably permeated by microgel particles which increase the mechanical and physical properties as well as the transpirability of the foam, which results in the foam
Material particularly suitable for use as an upper layer in the present invention. Preferably, the gel particles have a size of 1 to 5 mm and comprise 5 to 20% of the total volume of the foam matrix.
The upper layer preferably has a density of 40 to 70 kg / m3, more preferably 50 to 60 kg / m3, for example 55 kg / m3, this size being measured according to the ISO 845 standard.
The hardness of the upper layer is preferably from 0.5 to 1.5 kPa, more preferably from 0.6 to 1.3 kPa, and is for example 0.8 kPa, which size is measured according to ISO standard 3386.
The tear strength of the upper layer is preferably between 35 and 55 kPa, more preferably between 40 and 50 kPa, and is for example 45 kPa, this size being measured according to the ISO 1798 standard.
The ball rebound resilience of the top layer is preferably greater than 40 and more preferably from 50 to 80%, which size is measured in accordance with standard ISO 8307 (revised in 2010).
The compression of the upper layer is preferably less than 5%, the size being measured according to ISO standard 1856.
Each of these parameters contributes to a good, ventilated and comfortable upper layer.
In one embodiment, the top layer has a thickness that is less than or equal to the thickness of the viscoelastic layer that comprises the inserts.
In another embodiment, a lower layer may be provided on which the article of the present invention is located. Such a lower layer may be provided with spring elements. The lower layer can also be filled with sections of foam, such as. B. highly elastic polyurethane foam, are provided.
As noted, the inserts are spaced, each position of the inserts coinciding with a position on the body of a user requiring support. For this purpose, the user is measured and body parameters are determined. These parameters can be z. For example, the following data may be included: length, width, weight, sex, age, bone density, percentage fat, length of individual body parts, disease history.
The collection of body parameters can be determined by conventional means such. As questionnaires, or by more advanced techniques such. As photographs and / or (3D) scanning or a combination of both, take place.
Based on the information collected, the required characteristics of the foam inserts (density, diameter, hardness, etc.) and / or their position in the article are determined. Subsequently, a personalized article is produced, wherein the inserts are provided in the article in cavities.
If the article is a mattress, the inserts are provided in the mattress at regular, spaced apart positions. Preferably, the position of the inserts coincides with at least one location or a combination of the following locations (or locations) of a user's body: shoulder, chest, lower back, thigh, loin, hip, lower leg, feet, knee, and / or ankles. In one embodiment, the mattress more than 5 inserts, so z. B. 6, 7, 8, 9, 10, 11, 12, 13, 14, or more.
As such, the present invention also relates to a method of making a personalized foam article comprising a viscoelastic layer having non-viscoelastic foam inserts, the method comprising: determining one or more anthropometric parameters of a person intending to use the foam article ; Determining the characteristics and / or the position of the inserts based on the parameters; - Insert the inserts into cavities of the viscoelastic layer.
The present invention provides a method for providing a personalized bedding system to an individual.
Preferably, the anthropometric parameters are determined by scanning the body, e.g. B. by using a 3D camera, determined.
In a preferred embodiment, these anthropometric parameters are subsequently translated by a processor into a mass of the user. The processor then determines the necessary specific properties for the inserts in the bedding product or foam article. More specifically, the processor calculates the preferred hardness and / or position of the inserts. The hardness of the inserts may be different depending on the position in the mattress.
In a preferred embodiment of the methodology according to the present invention, a depth image of an individual's body is determined using a depth camera or depth sensor system comprising one or more depth cameras or depth sensors. In a second step, on the basis of the obtained depth image, the anthropometric parameters and, if necessary, the age and gender of the individual are determined. In the last step, these anthropometric parameters form the basis for determining the position and / or hardness of the body support elements, such. As the inserts described above, which are provided for the individual in the bed system.
In the context of the present invention, the anthropometric parameters are to be understood as those parameters which relate to the dimensions and metrics of an individual body, that is, data such as, but not limited to, e.g. Height, weight, size of the various body parts or organs, joints, their volume, shape or proportions, etc.
In one embodiment, the generated parameters are related to a table of product design parameters to provide the user with the optimal billing certificate according to the particular body type of the individual.
In a most preferred embodiment of the present invention, the parameters allow to set the required hardness of the inserts arranged in a position of a bakery product that matches the specific body locations of the user.
In a preferred embodiment, five classes of inserts may be used in the present invention, with the inserts classified by hardness. In a preferred embodiment, the class I (extra soft) has a hardness of 1.5 to 2.5 kPa, the class II (soft) a hardness of 2.5 to 3.5 kPa, the class III (medium) a hardness from 3.5 to 3.9 kPa, Class IV (solid) has a hardness of 4 to 4.5, and Class V (solid) has a hardness of 4.5 to 5.5. For the purpose of the present invention, the depth camera system is a system that includes a depth camera (or a depth sensor) capable of performing a three-dimensional scan of an object, in this case a body.
In another embodiment of the present invention, the depth image comprises a three-dimensional skeleton or mesh model. In a skeletal model, each part of the body can be characterized as a mathematical vector that defines joints and bones of the skeletal model. A mesh model or polygon model consists of surfaces, edges, and vertices.
Based on both models, various anthropometric parameters can be defined, which together form an exact model of the individual.
In a preferred embodiment, which is advantageous for the present invention, the parameters include information about body mass index, weight, position of shoulder, lumbar / hip, thigh, knee, lower leg and / or feet. These locations on the body have been found to require additional support to provide an ergonomic sleep style.
As mentioned, the depth camera system provides depth information in the form of a depth image. The depth image may consist of a variety of measured pixels, each measured pixel having a measured depth value. For example, the depth image may comprise a two-dimensional (2D) pixel area of the captured scene, where each pixel in the 2D pixel area has a depth value, such as a depth. B. can represent a length or a distance, for example in centimeters, millimeters or the like, of an object in the detected by the detection device scene.
According to one example embodiment, the depth image may be an image or frame of a scene captured using, for example, the 3D camera and / or the RGB camera of the depth camera system.
In one embodiment, upon obtaining the depth image with, for example, the depth information, the depth image may be at a lower level
Be downsampled processing resolution so that the depth image can be used more easily and / or processed faster with less computational effort. In addition, one or more highly scattering and / or noisy depth values may be removed and / or smoothed from the depth image; Sections of missing and / or removed depth information may be filled out and / or reconstructed; Furthermore, or alternatively, any suitable processing may be performed on the obtained depth information such that the depth information for generating a model, such as a. A skeletal model, which will be described in more detail below.
According to one embodiment, upon receipt of the depth image, each target in the depth image can be inked by flood filling. For example, in one embodiment, the edges of each target, such as e.g. The individual and non-individual elements, in the captured scene of the depth image. As described above, the depth image may include a two-dimensional (2D) pixel area of the captured scene, where each pixel in the 2D pixel area has a depth value, such as a depth value. B. can represent a length or a distance, for example in centimeters, millimeters or the like, of an object in the scene detected by the camera. According to an example embodiment, the edges may be determined by comparing different depth values associated, for example, with adjacent or nearby pixels of the depth image. If the different depth values used for the comparison are greater than a given edge tolerance, the pixels may define an edge. For example, in one embodiment, the predetermined edge tolerance may be 100 millimeters. When a pixel representing a depth value of 1,000 millimeters is compared to an adjacent pixel representing a depth value of 1,200 millimeters, the pixels may define an edge of a target because the difference in length or pitch between the pixels is greater than the given edge tolerance is 100 mm.
In addition, as described above, the detection device may organize the computed depth information including the depth image in "Z-layers" perpendicular to a Z-axis extending from the camera along a line of sight to the observer The probable z-values of the z-layers may be flood-filled based on the particular edges, for example, the pixels associated with the particular edges and the pixels of the area within the particular edges may be assigned to one another define an object in the scene that can be compared to a pattern, which will be described in more detail below.
In an example embodiment, the predetermined points or areas may be evenly distributed across the depth image. For example, the predetermined points or areas may include a point or area in the center of the depth image, two points or areas between the left edge and the center of the depth image, two points or areas between the right edge and the center of the depth image, or the like.
According to an example embodiment, each of the flood-stained targets, such as e.g. For example, the individuals and non-individuals may be compared to a pattern to determine if the targets and / or which of the targets in the scene comprise a human. The pattern may include, for example, a machine representation of a given body model that provides a person in various postures or postures, such as a posture. B. a typical standing posture with the arms on each side, is assigned.
According to an example embodiment, the pattern may include one or more data structures that may include a set of variables that together define a typical human body such that the information associated with the pixels of, for example, individuals and non-individuals are compared to the variables to determine if the goals and goals can be human. In one embodiment, each of the variables in the sentence may be weighted based on a body part. For example, different body parts, such as. For example, the head and / or the shoulders in the pattern may have a weight value associated therewith that is greater than that of other body parts, such as a weight. B. a leg. According to one embodiment, the weight values may be used in comparing a target, such as a target. For example, the individuals and the non-individuals may be used with the variables to determine if the goals or which of the goals can be human. For example, matches between the variables and the target that have larger weight values may provide a greater probability that the target is human compared to smaller weight values.
In addition, in an example embodiment, a confidence value may be calculated, indicating, for example, the accuracy with which each of the flood filled targets in the depth image matches the pattern. The confidence value may include a probability that each of the flood-stained targets may be human. In one embodiment, the confidence value may be used to determine if the flood-stained target may be human. For example, a comparison of the confidence value with a threshold may be made such that when the confidence exceeds the threshold, the target associated with it may be determined as an individual.
In an example embodiment, the individual may be isolated and a bitmask of the individual created to scan for one or more body parts. For example, the bitmask may be generated by flood-filling the individual so that the individual may be separated from other targets or objects in the scene elements. The bitmask may then be analyzed for one or more body parts to generate a model, such as a skeleton model, a human mesh model or the like, of the individual.
After a valid individual has been found in the depth image, the background or area that does not match the individual can be removed. A bitmask may then be generated for the individual comprising values of the individual along, for example, an X, Y, and Z axis. According to an example embodiment, the individual's bitmask may be scanned for different body parts, for example by starting with the head to generate a skeleton model of the individual.
The information, such as the bits, pixels, or the like, associated with the pattern-matched individual can be scanned to determine various locations associated with the various parts of the subject's body. For example, after removing the background or area surrounding the individual in the depth image, the depth image may include the isolated individual. The bitmask, which may include X, Y, and Z values, may then be generated for the individual. The individual's bitmask can be scanned to determine different body parts. For example, the top of the individual's bitmask may be initially determined. The top of the individual's bitmask may be associated with a location of the top of the head. After determining the top of the head, the bitmask may be scanned downwardly to determine a location of the individual's neck, a location of the individual's shoulders, or the like.
The bitmask may then be analyzed for one or more body parts to generate a model, such as a skeleton model, a human mesh model or the like, of the individual.
For example, according to one embodiment, measurements determined by the scanned bit mask may be used to define one or more joints in a skeleton model. These joints, one or more, may be used to define one or more bones that may correspond to a body part of the individual.
For example, the top of the individual's bitmask may be associated with a location of the top of the head. After determining the top of the head, the bitmask can be scanned down to determine a location of the neck, a location of the shoulders, and so on. A width of the bitmask, for example, at a position being scanned, may be compared to a threshold of a typical width associated with, for example, a neck, shoulders, or the like. In an alternative embodiment, the distance from a previously scanned position associated with a body part in a bitmask may be used to determine the location of the neck, shoulders, or the like. For example, some body parts, such as the legs, feet, or the like, may be calculated based on the location of the other body parts. After determining the values of a body part, a data structure is created that includes measurements of the body part. The data structure may include scan results averaged from multiple depth images provided at different times by the depth camera system.
In one embodiment, measurements determined by the scanned bitmask may be used to define one or more joints in a skeletal model. These joints, one or more, are used to define one or more bones that coincide with a body part of an individual. One or more joints may be adjusted until the joints are within a range of typical distances between a joint and a body part of an individual so as to generate a more accurate skeletal model. The model may be further customized, for example, based on a height associated with the individual element.
In yet another embodiment, locations on the model of the body may be identified. The sites may be joints of a skeletal model and / or other sites such. The upper part of the head, the middle of the head, the tip of the hand and the tip of the foot. Then the distances between the positions are determined. For example, distances may be used to identify a shoulder width, head width, head height, arm length, and height. The method may also include the determination of ratios of the distances, such as. A ratio indicating a relative size of a head of the body, a ratio of arm length to height, a ratio of height to height and / or a ratio of head width to shoulder width.
To obtain an optimized model of the individual, a marked spot on the floor, e.g. B. a bedding business, are provided. In one embodiment, the marked location may be a simple mark on the floor, such as a floor. A point, circle, square. In another embodiment, the marked location may be a platform. This allows a perfect positioning of the individual.
In addition to determining the data from the body scan, the individual may also be asked to provide personal information that may be entered into the system and that may also serve as a source for determining the personalized mattress.
In one embodiment, the analysis of the determined parameters and the determination of the body support elements or inserts in the bed system are computer implemented. For this purpose, an algorithm is provided which serves to determine the anthropometric parameters of this depth image and to link the parameters with a position and / or hardness of the body support elements in a bed system.
In a preferred embodiment, the camera system determines hinge points as described above. By identifying the latter, the distance between two joints is calculated. Preferably, this results in the back, neck, thigh and lower leg length as well as the shoulder and hip width.
The system also determines the contours of the body and translates them into a volume and weight of the body. The dimensions and locations of the weight assemblies on the body are identified.
These parameters, including the total length of the person, are translated by the algorithm into various ergonomic zone divisions of the mattress with appropriate hardness, density and / or elasticity. The algorithm also calculates the desired mattress length for the individual.
Advantageously, the bed system is provided with support members, such as the inserts described above, which coincide with the locations of the body of the individual on whom the depth image has indicated that support is needed (the mattresses of the mattress). As mentioned, these elements are often located in the following places of an individual: shoulder, loin / hip, thigh, knee, lower leg, thigh and foot. Based on the data obtained from the model, the required support is calculated at those locations. This support can then be translated into specific characteristics of the support elements such as density, size, hardness, elasticity, tear strength, and so on.
In a preferred embodiment, the support members are provided by means of transverse inserts in the bed system, preferably tubular inserts. For the purpose of the present invention is to be understood transversely as parallel to the width of the bed material. More precisely, transverse is also to be understood as a direction perpendicular to the longitudinal axis of a user's body when using the mattress.
Once the user has determined the optimal bed system, the user is allowed to experience his or her optimal bed system through a simulation facility. This is necessary because the production of the actual end product (bed system) requires a certain amount of time. Such
Simulation device consists of a bed system, z. As a mattress with hollow inserts or tubes, each of which, depending on the proposed foam insert, can be provided with a pressure. In this way, the user can experience what the final bed system (with the foam inserts) feels like. This may be helpful in the decision making process regarding the purchase of the item.
Preferably, the simulation device is in contact with the processor that defines the characteristics of the inserts based on the anthropometric parameters determined by a user. When the processor has determined the characteristics of the various inserts, a signal is sent to an air pressure system that supplies the tubes of the bed system with the required air pressure. This air pressure system can consist of a compressor, compressed air and a bellows and allows the provision of a simulation device comparable to the final bed system.
By the method of the present invention, the adequate positioning of these support elements as well as their specific characteristics can be determined. Each support element associated with a specific location of the body may comprise a different size, material, hardness, elasticity, density, etc.
Under normal circumstances, a foam article such as a mattress has a life of about 10 to 15 years. During this period, the human body may undergo significant changes (eg, weight loss or gain, pregnancy, etc.). The present invention makes it possible to adapt the foam article to the body changes of the user. In one embodiment, the inserts may be removed and replaced depending on changes in the body of the user.
The three different foam elements (top layer, bottom layer and inserts) can be molded separately and then bonded together, or made together in one piece. In another embodiment, the viscoelastic layer may be formed with the inserts at the same time and only then joined to a separately prepared upper layer. In another embodiment, a fourth or fifth layer may be provided having spring elements.
The preparation may be carried out by any suitable process, such. B. by direct injection expanded foam molding (shaping with direct injection and expanding foam) or co-injection molding (co-injection method), take place.
By way of example only, all of the features described above are applicable to mattresses, top mattresses, mattress overlays, overlays, futons, sofa beds, or any other element used to fully support or cushion a part of a human or animal body.
In a final aspect, the present invention also relates to a bed provided with a foam article which is a mattress of a pillow as described above. The bed may comprise a freestanding rack provided with a separate mattress according to an embodiment of the present invention. In another embodiment, the bed and mattress are made of a combination of a floor unit, such as a floor unit. B. a pocket spring unit, with a mattress according to an embodiment of the present invention.
The bed can be a single or double bed, or a king size bed. In a preferred embodiment, the bed according to the present invention is a pocket spring bed, wherein the top layer is a mattress according to the present invention and the bed is provided with one or more support members. In a most preferred embodiment, the bed comprises two support members centrally located relative to the mattress and the underlying layers and extending towards the top and bottom of the mattress. Preferably, the bed can be adjusted in terms of its position.
The invention will be further described by the following non-limiting drawings and examples, which further illustrate the invention and are not intended to be construed nor to be interpreted as limiting the scope of the invention.
EXAMPLES
Table 1 provides examples of inserts that may be used for the purpose of the present invention, as well as their characteristics.
Table 1 Characteristics of HR inserts that can be used for a foam article according to the present invention
Description of the figures
FIG. 1a is a perspective view of a foam mattress 1 according to an embodiment of the present invention. The mattress 1 comprises a viscoelastic foam layer 2 which is provided with inserts 3 embedded in cavities in the viscoelastic layer 2. The inserts 3 may be tubular and have a round cross-sectional shape. As can be seen in FIG. 1a, the inserts 3 are arranged at regularly spaced distances from one another, but these distances may also vary depending on measurements determined by the user. Different inserts 3 made of different material may be used at 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 shown in Figure 1b, the mattress may be provided with an upper layer 4 made of a non-viscoelastic material such as a flexible foam or, alternatively, a viscoelastic material. This layer may span the entire surface of the viscoelastic layer 3 and be secured to the layer 3 by suitable fastening means (not shown in the figure). Alternatively, the top layer 4 may be loosely disposed on the viscoelastic layer.
Figures 2a to 2c show various embodiments of the inserts 3 according to the present invention. The inserts may have a tubular (Figure 1a), but also rectangular (Figure 2a), diamond-shaped (Figure 2b), hexagonal (Figure 2c), or any other shape known in the art. The inserts 3 are completely embedded in the viscoelastic layer. FIG. 3 shows a cross-section along the longitudinal axis of the mattress, which illustrates the various possibilities of the inserts 3. In the most common embodiment, the inserts extend over the entire width of the viscoelastic layer (Figure 3a). FIG. 3b shows an embodiment in which the inserts 3 extend from the two outer sides of the viscoelastic layer towards the middle. This embodiment may be particularly advantageous when used in a double mattress 1, wherein the inserts are to be arranged differently based on the different body scans of the two users. In Figure 3c, the inserts 3 follow a discontinuous path along the width of the viscoelastic layer 2. The inserts 3 can be placed at discrete locations. Each of the inserts may have a different density, hardness, elasticity, etc., depending on the requirements of the user, as represented by different shading in the figures. In another embodiment, not shown, the height of the inserts 3 in the viscoelastic layer 2 may be different.
Figure 4 shows a detail of an advanced embodiment of the mattress 1 of the present invention. The mattress comprises an upper layer 4 located on the viscoelastic layer 2. The viscoelastic layer 2 is provided with a plurality of tubular inserts 3 having different densities. The upper layer 4 and the viscoelastic layer 2 are on a lower layer of the mattress made of any suitable material, such as e.g. As regular foams, latex foams, etc. can be produced, wherein the lower layer 5 can be provided for the additional comfort of the user with a plurality of spring elements 6. The mattress is preferably wrapped in a fabric.
Figure 5 shows an embodiment of a bed 7 according to the present invention provided with a mattress 1 with inserts 3 in a viscoelastic layer. The bed 7 shown in Figure 5 is of the pocket spring type, wherein the mattress 1 is located on a lower layer, which is preferably provided with spring elements 6. This bottom layer may also include sections made of a highly elastic foam. The combination is disposed on a backing, which may be a wood, metal, textile backing or a combination of various suitable materials. The assembly provides a sleeping space for a user. The assembly is placed on a double support 8 comprising two feet 10, 101 located in the center of the assembly, with the feet 10, 101 extending toward the top and bottom of the mattress.
FIG. 6 shows a cushion 11 according to the present invention made of viscoelastic foam 1 and provided with inserts 3.
Features in Figures 1: mattress 2: viscoelastic layer 3: inserts 4: upper layer 5: lower layer 6: spring elements 7: bed 8: support 9: support base 10, 101: feet 11: cushion

权利要求:
Claims (26)
[1]
A foam article, such as a mattress or pad, comprising a viscoelastic foam layer, the viscoelastic foam layer comprising foam inserts embedded in voids of the viscoelastic foam and extending in the transverse direction of the article, characterized in that the inserts comprise a foam insert Density of 20 to 80 kg / m3 have.
[2]
2. Foam article according to claim 1, characterized in that the hardness of the inserts is 1.5 to 6 kPa.
[3]
3. Foam article according to one of the preceding claims, characterized in that the inserts are made of highly elastic polyurethane foam.
[4]
4. Foam article according to one of the preceding claims, characterized in that the inserts have a round, hexagonal, square or rectangular cross-sectional shape.
[5]
5. Foam article according to one of the preceding claims, characterized in that the article is provided with an upper layer which is disposed over the viscoelastic foam layer.
[6]
6. Foam article according to claim 5, characterized in that the upper layer consists of polyurethane foam with embedded gel particles.
[7]
A foam article according to any one of the preceding claims, characterized in that the inserts are spaced, each position of the inserts coinciding with a position on the body of the user requiring support.
[8]
8. Foam article according to one of the preceding claims, characterized in that the inserts have the same or different densities and / or hardnesses.
[9]
9. Foam article according to one of the preceding claims, characterized in that the inserts extend over the entire width of the article.
[10]
10. Foam article according to one of the preceding claims, characterized in that the inserts have a tensile strength of 50 to 150 kPa.
[11]
11. Foam article according to one of the preceding claims, characterized in that the inserts have an elasticity of 40 to 75%.
[12]
12. Foam article according to one of the preceding claims, characterized in that the inserts are selected on the basis of anthropometric parameters, which were determined by a user.
[13]
A bed provided with a foam article according to claims 1 to 12.
[14]
14. A method of making a foam article having non-viscoelastic inserts, comprising: - determining one or more anthropometric parameters of a person intending to use the foam article; Determining the characteristics and / or the position of the inserts in the article based on the anthropometric parameters; and inserting the inserts into cavities of the viscoelastic layer.
[15]
A method of determining the hardness of inserts to be placed in a foam article, comprising: - determining one or more anthropometric parameters of a person intending to use the foam article by means of a 3D body scan or a 3D camera; Correlating the parameters with a required hardness and position in the article.
[16]
16. A method of providing a personalized bed system to an individual, the method comprising: determining a depth image of the subject's body using a depth camera or depth sensor system; Determining, based on the depth image, the anthropometric parameter, the age and sex of the individual; Determining, based on the anthropometric parameters, the position and / or hardness of the support elements of the body in a bed system for the individual.
[17]
17. The method according to claim 16, characterized in that the depth image comprises a three-dimensional skeleton model or a mesh model.
[18]
18. The method according to any one of the preceding claims, characterized in that the anthropometric parameters include the data body mass index, weight, position of shoulder, loin / hip, thighs, knees, lower legs and / or feet.
[19]
19. The method according to any one of the preceding claims, characterized in that the individual is placed on a marked position of a floor.
[20]
20. The method according to any one of the preceding claims, characterized in that the analysis of the determined parameters and the determination of the body support elements in the bed system is computer-implemented.
[21]
A method according to any one of the preceding claims, characterized in that the bed system is provided with support elements corresponding to locations of the body of the individual for which the depth image revealed that support is needed.
[22]
22. The method according to any one of the preceding claims, characterized in that the support elements by means of transverse inserts in the bed system, preferably tubular inserts are provided.
[23]
23. The method according to claim 22, characterized in that the bed system consists of a viscoelastic foam layer with highly elastic polyurethane foam inserts as support elements.
[24]
A system for providing a personalized bed system to an individual, the system comprising: one or more depth camera or depth sensor systems for producing a depth image of the subject, the depth camera systems connected to an imaging system; and a processing device, characterized in that the processing device is provided with an algorithm to determine the anthropometric parameters of the depth image and to associate the parameters with a position and / or hardness of the body support elements in a bed system.
[25]
A system according to claim 24, characterized in that the system further comprises a positioning mark for the individual.
[26]
26. System according to one of the preceding claims, characterized in that the system comprises a simulation device that simulates the final bed system.

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同族专利:

公开号 | 公开日

DK3023034T3|2019-10-14|

BE1023512A1|2017-04-12|

EP3023034A3|2016-08-31|

EP3023034A2|2016-05-25|

EP3023034B1|2019-07-17|

DE202015007492U1|2016-03-14|

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法律状态:

优先权:

申请号 | 申请日 | 专利标题

NL2013708A|NL2013708B1|2014-10-29|2014-10-29|Three dimensional measuring method and system for providing customised bedding material.|

NL2013707|2014-10-29|

NL2013707A|NL2013707B1|2014-10-29|2014-10-29|Viscoelastic foam product with inserts.|

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