Functional mat with improved body pressure distribution stability

Abstract

A functional mat with improved body pressure distribution stability is provided. The functional mat comprises: an upper layer in which a plurality of first through holes are formed penetrating along a first direction, and the plurality of first through holes are spaced apart from each other in a second direction perpendicular to the first direction by a first partition wall and are continuously formed; and a lower layer disposed on the lower side of the upper layer on the other side of the first direction, in which a plurality of second through holes are formed penetrating along the first direction, and the plurality of second through holes are spaced apart from each other by a second partition wall and are continuously formed in the second direction. The functional mat comprises a first region and a second region on a plane, wherein the thickness of the first partition wall included in the first region and the thickness of the first partition wall included in the second region are different, and the thickness of the second partition wall included in the first region and the thickness of the second partition wall included in the second region are different, wherein the thickness of the first partition wall and the thickness of the second partition wall refer to the width of the partition wall in the second direction.

Description

Technology Field

[0001] The present invention was carried out under project number D2409004 with the support of Gyeonggi-do, the specialized research management agency for the said project is "Gyeonggi Economic & Science Promotion Agency," the research project name is "Gyeonggi-do Technology Development Project," the research project name is "Development of a pressure ulcer prevention air cushion with Run-Flat function," the project performing agency is "CareMate Co., Ltd.," and the research period is August 1, 2024 to July 31, 2025. The present invention relates to a functional mat with improved body pressure distribution stability, and is ergonomically designed to evenly distribute the weight of the occupant while simultaneously improving lateral distribution stability to provide a comfortable seating sensation. Background Technology

[0003] Cushions or mats are intended to be placed on the floor or chair to sit or lie on, and are manufactured by filling them with cushioning materials such as cotton or soft materials. These cushions or mats absorb shock, allowing the person sitting on them to feel a comfortable seating sensation.

[0004] However, conventional cushions or mats had the problem of poor breathability, which caused sweat to accumulate on the surface in contact with the body when used for a long time, causing discomfort to the user, and also caused the cushioning effect to gradually deteriorate as the user's body weight became concentrated on specific areas.

[0005] Accordingly, a new type of functional mat having internal holes is being manufactured to evenly distribute the weight of the occupant and provide a comfortable seating experience for a long time. However, when applied to conventional cushions or mats, the thickness of the pressure-applied area is made thin and the thickness of other areas is made thick to correspond to the shape of the human body for ergonomic design, but there was a problem in that the dispersion effect varied depending on the height of the holes, so a sufficient dispersion effect could not be provided.

[0006] Accordingly, there is a growing need for a functional mat that corresponds to the shape of the human body in contact with the mat and can provide an excellent and stable body pressure distribution effect. Prior art literature

[0008] U.S. Patent Publication No. 2012-0005821, Korean Registered Patent No. 10-1893924 The problem to be solved

[0009] The present invention has been devised to solve the aforementioned problems, and the objective of the present invention is to provide a functional mat that can efficiently distribute the weight of a seated person by designing the thickness of the partition wall forming the through holes differently for each area of ​​the functional mat to correspond to the shape of the human body, thereby maintaining a constant height of the through holes, and simultaneously improving lateral stability by distinguishing between the area of ​​the functional mat that contacts the seated person and the area of ​​the functional mat that does not contact the seated person and adjusting the thickness of the partition wall differently.

[0010] The problems of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0012] A functional mat with improved pressure distribution stability according to an embodiment of the present invention for achieving the above objective comprises: an upper layer having a plurality of first through holes formed penetrating along a first direction, wherein the plurality of first through holes are mutually spaced apart by a first partition and continuously formed in a second direction perpendicular to the first direction; and a lower layer disposed on the lower side of the upper layer on the other side of the first direction, wherein a plurality of second through holes are formed penetrating along the first direction, and the plurality of second through holes are mutually spaced apart by a second partition and continuously formed in the second direction, wherein the functional mat comprises a first region and a second region on a plane, wherein the thickness of the first partition included in the first region and the thickness of the first partition included in the second region are different, and the thickness of the second partition included in the first region and the thickness of the second partition included in the second region are different, wherein the thickness of the first partition and the thickness of the second partition refer to the width of the partition in the second direction.

[0013] In some embodiments, the thickness of the first partition included in the second region is greater than the thickness of the first partition included in the first region, and the thickness of the second partition included in the second region is greater than the thickness of the second partition included in the first region, and the second region may be located outward from the first region in a plane.

[0014] In some embodiments, the height of the first partition included in the first region and the height of the first partition included in the second region are the same, and the height of the second partition included in the first region and the height of the second partition included in the second region are the same, provided that the height of the first partition and the height of the second partition may refer to the length in the first direction.

[0015] In some embodiments, each of the plurality of first through holes and each of the plurality of second through holes correspond one-to-one and communicate with each other in the first direction, the center of the first through hole and the center of the second through hole coincide, the center of the first partition wall and the center of the second partition wall coincide, and the maximum thickness of the first partition wall connected to each other can be formed to be thinner than the minimum thickness of the second partition wall.

[0016] In some embodiments, each of the plurality of first through holes and each of the plurality of second through holes corresponds one-to-one and communicates with each other in the first direction, the center of the first through hole and the center of the second through hole coincide, the center of the first partition wall and the center of the second partition wall coincide, the thickness of the first partition wall decreases along the upper direction which is one side of the first direction, and the thickness of the second partition wall may decrease along the lower direction which is the other side of the first direction.

[0017] In some embodiments, the thickness of the first partition and the thickness of the second partition may be constant along the upper direction, which is one side of the first direction.

[0018] In some embodiments, a central rib may be further included to connect mutually facing partitions at at least one of the first through hole, the second through hole, and the connection portion communicating between the first through hole and the second through hole.

[0019] In some embodiments, the cross-sectional shape (planar shape) of the plurality of first through holes and the plurality of second through holes may be polygonal or circular.

[0020] In some embodiments, the thickness of the first partition included in the second region is greater than the thickness of the first partition included in the first region, and the thickness of the second partition included in the second region is greater than the thickness of the second partition included in the first region, the planar shape of the first region has the shape of a person's body in contact with the functional mat, and the second region may be an area of ​​the functional mat excluding the first region.

[0021] In some embodiments, the planar shape of the first region may have the shape of a person's buttocks that come into contact with the functional mat when seated.

[0022] In some embodiments, the functional mat further comprises a third area on a plane, wherein the thickness of the first partition included in the third area is different from the thickness of the first partition included in the first area and the thickness of the first partition included in the second area, and the thickness of the second partition included in the third area may be different from the thickness of the second partition included in the first area and the thickness of the second partition included in the second area. Effects of the invention

[0024] The present invention has been devised to solve the aforementioned problems. By designing the thickness of the partitions forming through holes in different areas of the functional mat to correspond to the shape of the human body while maintaining a constant height of the functional mat, the efficiency of distributing the weight of the seated person is maintained, and at the same time, lateral stability can be improved by adjusting the thickness of the partitions differently depending on the area of ​​the functional mat that contacts the seated person and the area of ​​the functional mat that does not contact the seated person.

[0025] The effects according to the technical concept of the present disclosure are not limited to those mentioned above, and other unmentioned effects will be clearly understood by a person skilled in the art from the description below. Brief explanation of the drawing

[0027] FIG. 1 is a perspective view of a functional mat with improved body pressure distribution stability according to one embodiment of the present invention. FIG. 2 is a cross-sectional view of a functional mat capable of dispersing body pressure according to one embodiment of the present invention. FIG. 3 is a cross-sectional view of a functional mat capable of dispersing body pressure according to another embodiment of the present invention. FIG. 4 is an exemplary cross-sectional view of the first or second through hole of the present invention. FIG. 5 is a plan view of a functional mat with improved body pressure distribution stability according to one embodiment of the present invention. FIG. 6 is a plan view of a functional mat with improved body pressure distribution stability according to another embodiment of the present invention. FIG. 7 is a plan view of a functional mat with improved body pressure distribution stability according to another embodiment of the present invention. Specific details for implementing the invention

[0028] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the attached drawings. The advantages and features of the present disclosure and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the attached drawings. However, the technical concept of the present disclosure is not limited to the following embodiments but can be implemented in various different forms. The following embodiments are provided merely to complete the technical concept of the present disclosure and to fully inform those skilled in the art of the scope of the present disclosure, and the technical concept of the present disclosure is defined only by the scope of the claims.

[0029] It should be noted that when assigning reference numerals to the components of each drawing, the same components are given the same reference numeral whenever possible, even if they are shown in different drawings. Furthermore, in describing the present disclosure, if it is determined that a detailed description of related known components or functions could obscure the essence of the present disclosure, such detailed description is omitted.

[0030] Unless otherwise defined, all terms used herein (including technical and scientific terms) may be used in a meaning commonly understood by those skilled in the art to which this disclosure pertains. Additionally, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless explicitly and specifically defined otherwise. The terms used herein are for describing the embodiments and are not intended to limit this disclosure. In this specification, the singular form includes the plural form unless specifically stated otherwise in the text.

[0031] Additionally, terms such as first, second, A, B, (a), (b), etc., may be used to describe the components of the present disclosure. These terms are intended merely to distinguish the components from other components, and the nature, order, or sequence of the components is not limited by such terms. Where it is stated that a component is "connected," "combined," or "connected" to another component, it should be understood that the component may be directly connected or connected to the other component, but that another component may also be "connected," "combined," or "connected" between each component.

[0032] As used in this disclosure, “comprises” and / or “comprising” do not exclude the presence or addition of one or more other components, steps, actions, and / or elements to the mentioned configurations, steps, actions, and / or elements.

[0033] Hereinafter, various embodiments of the present disclosure will be described in detail with reference to the attached drawings.

[0034] FIG. 1 is a perspective view of a functional mat with improved body pressure distribution stability according to one embodiment of the present invention, FIG. 2 is a cross-sectional view of a functional mat capable of distributing body pressure according to one embodiment of the present invention, FIG. 3 is a cross-sectional view of a functional mat capable of distributing body pressure according to another embodiment of the present invention, FIG. 4 is an exemplary cross-sectional view of a first or second through hole of the present invention, and FIG. 5 to 7 are plan views of a functional mat with improved body pressure distribution stability according to the present invention.

[0035] With reference to the virtual coordinate system illustrated in FIG. 1, the “upper” or “upper direction” described below refers to the z direction, and the “width direction” refers to the x direction or y direction perpendicular to the z direction. In this specification, for convenience, the z direction or the upper direction is referred to as the first direction (Z), and the x direction or the y direction, and the width direction are referred to as the second direction (x or y).

[0036] A functional mat (100, hereinafter referred to as 'functional mat') with improved body pressure distribution stability according to one embodiment of the present invention comprises an upper layer (110), a lower layer (120), and a central rib (140). The functional mat (100) may further comprise a side wall (130).

[0037] The functional mat (100) can be used as a cushion, rug, etc., in its original form as shown in FIG. 1, or it can be used in a form wrapped with an outer layer such as a fabric material. In addition, although FIG. 1 shows the overall shape of the functional mat (100) as a square, this is an example and the functional mat (100) may be implemented in various shapes depending on the intended use.

[0038] The upper layer (110) may include a plurality of first through holes (111) formed through along the z-direction, and the plurality of first through holes (111) may be continuously formed spaced apart from each other in the x-direction or y-direction perpendicular to the z-direction by a first partition (112). The upper layer (110) has an opening formed through the z-direction by the first through holes (111) with the top open, and a hollow is formed inside so that external air can be introduced.

[0039] The lower layer (120) is positioned below the upper layer (110) and can be extended downward from the upper layer (110). The lower layer (120) may have a plurality of second through holes (121) formed through it along the z-direction, and may include the plurality of second through holes (121) that are continuously formed and spaced apart from each other in the x-direction or y-direction perpendicular to the z-direction by a second partition (122). The lower layer (120) may have an opening formed through it in the z-direction by the second through holes (121) with the bottom open, and a hollow may be formed inside.

[0040] In some embodiments, each of the plurality of first through holes and each of the plurality of second through holes may correspond one-to-one and be connected to each other in the z-direction.

[0041] In some embodiments, the cross-sectional shape (planar shape or cross-sectional shape) of the plurality of first holes (111) and the cross-sectional shape (planar shape or cross-sectional shape) of the plurality of second holes (121) may be polygonal or circular. For example, the cross-sectional shape (planar shape or cross-sectional shape) of the plurality of first holes (111) and the cross-sectional shape (planar shape or cross-sectional shape) of the plurality of second holes (121) may be hexagonal, square, triangular, or circular, as shown in FIG. 4. Although not limited thereto, the cross-sectional shape of the plurality of first holes (111) and the plurality of second holes (121) according to one embodiment may be hexagonal. Accordingly, the functional mat (100) according to the present invention may adopt a honeycomb structure.

[0042] The cross-sectional shape of the first through hole (111) and the cross-sectional shape of the second through hole (121) may have the same shape. The center of the first through hole (111) and the center of the second through hole (121) may coincide, and the center of the first partition wall (112) and the center of the second partition wall (122) may coincide with each other.

[0043] The hollow formed inside the first through hole (111) is connected to the hollow formed inside the second through hole (121), so that air introduced through the opening of the first through hole (111) can be discharged through the opening of the second through hole (121), or conversely, air introduced through the opening of the second through hole (121) can be discharged through the opening of the first through hole (111).

[0044] The upper layer (110) and the lower layer (120) may be joined together as a single unit.

[0045] Meanwhile, the minimum thickness (t2) of the second partition (122) included in the lower layer (120) may be formed to be thicker than the maximum thickness (t1) of the first partition (112) included in the upper layer (110) and connected to the second partition (122). Meanwhile, in this specification, the thickness (t1) of the first partition (112) and the thickness (t2) of the second partition (122) may refer to the width in the x direction or the y direction, that is, the second direction (x or y).

[0046] As the thickness (t1) of the first partition wall (112) surrounding the first through hole (111) that corresponds to each other is formed to be thinner than the thickness (t2) of the second partition wall (122) surrounding the second through hole (121), the size of the first through hole (111) may be larger than the size of the second through hole (121) that communicates with the first through hole (111). A detailed explanation of this will be provided later.

[0047] In some embodiments, the thickness (t1) of the first partition (112) may range from 0.3 mm to 3 mm, the thickness (t2) of the second partition (122) may range from 0.3 mm to 3 mm, and the diameter (D1, or width) of the first through hole (111) may range from 5 mm to 20 mm. However, it is not limited thereto.

[0048] The side wall (130) is in contact with the longitudinal section of the upper layer (110) and the lower layer (120) and connects the upper layer (110) and the lower layer (120).

[0049] The central rib (140) may be formed to connect mutually facing partitions at at least one point among the first through hole (111), the second through hole (121), and the connection portion where the first through hole (111) and the second through hole (121) are connected. Specifically, according to one embodiment of the present invention, the two ends of the central rib (140) are formed to be connected to mutually facing partitions. Accordingly, when the cross-sectional shape of the through hole is a regular hexagon as shown in FIG. 1, the central rib (140) is formed to connect three pairs of mutually facing partitions.

[0050] However, the shape of the central rib (140) is not limited to that shown in FIG. 1 and can be implemented in various shapes such as straight or cross shapes depending on the cross-sectional shape of the through hole.

[0051] The central rib (140) supports the first bulkhead (112) and the second bulkhead (122) in the horizontal direction, thereby preventing the upper layer (110) and the lower layer (120) from being excessively deformed by the weight of the seated person, thus achieving the effect of preventing the upper layer (110) and the lower layer (120) from being excessively deformed by the weight of the seated person.

[0052] In some embodiments, the upper layer (110), lower layer (120), central rib (140), and side wall (130) may be composed of a copolymer of a polystyrene-based polymer and polypropylene. The polystyrene-based polymer may be SEBS (styrene-(ethylene / butyllene)-styrene block copolymer) or SEEPS (polystyrene-block-poly(ethylene-ethylene / propylene)-block polystyrene). In some other embodiments, the upper layer (110), lower layer (120), central rib (140) and side wall (130) may be made of a soft rubber material selected from butyl rubber, silicone rubber, acrylic rubber, hydrogenated NBR rubber, epichlorohydrin rubber, chlorosulfonated polyethylene rubber, chlorinated polyethylene rubber and butyl acrylate-ethyl acrylate-acryl noritrele rubber, or may be made of a jelly-like material or a soft resin, and may also be made of various known natural or synthetic materials having elasticity and softness.

[0053] Referring to FIG. 2, an upper layer (110) and a lower layer (120) according to one embodiment of the present invention may be separated based on a central rib (140). Specifically, an upper layer (110) may be positioned above and a lower layer (120) may be positioned below based on the central rib (140).

[0054] At this time, the thickness (t1) of the first partition (112) of the upper layer (110) is constant (same) along the z-direction, and the thickness (t2) of the second partition (122) of the lower layer (120) is also constant (same) along the z-direction, and the width (D1) of the first through hole (111) can be formed wider than the width (D2) of the second through hole (121). Accordingly, when a load is applied to the functional mat (100) capable of dispersing body pressure, the first partition (112) is appropriately deformed by the weight of the seated person to distribute the weight, and the second partition (122), which has a relatively thick cross-sectional width, can firmly support the weight of the seated person, thereby achieving the effect of dispersing the weight.

[0055] Meanwhile, the structure of the first bulkhead (112) and the second bulkhead (122) may be implemented in a different way.

[0056] Referring to FIG. 3, the thickness (t1) of the first partition (112) can be formed to become thinner along the z-direction (i.e., the direction from bottom to top), and the thickness (t2) of the second partition (122) can be formed to become thicker along the z-direction. Specifically, the thickness of the top of the first partition (112) can be formed to be thinner than the thickness of the bottom of the first partition (112), and the thickness of the top of the second partition (122) can be formed to be thicker than the thickness of the bottom of the second partition (122). That is, the first partition (112) and the second partition (122) can be formed so that their thickness becomes thinner as they move from the inside outward in the thickness direction. Accordingly, the uppermost width (D) of the first through hole (111) is formed wider than the lowermost width of the first through hole (111), and the uppermost width of the second through hole (121) is formed narrower than the lowermost width of the second through hole (121).

[0057] With the bulkhead structure as illustrated in FIG. 3, the first and second bulkhead (112, 122) structures are formed such that they become thinner in thickness from the inside outward in the thickness direction, thereby dispersing the weight of the seated person applied to the outside in the thickness direction while being appropriately deformed, and the inside, having a relatively thick cross-sectional width, can firmly support the weight of the seated person.

[0058] Referring to FIGS. 1 and FIGS. 5 to 7, a functional mat (100) according to one embodiment of the present invention may include at least two regions (A1, A2, A3, A4, A5) having different widths of through holes or thicknesses of partition walls.

[0059] Specifically, referring to FIG. 5, a functional mat (100) according to one embodiment may include a first region (A1) and a second region (A2) having different widths of holes or thicknesses of partition walls.

[0060] In some embodiments, the thickness (t1) of the first partition (112) included in the first region (A1) and the thickness (t1) of the first partition (112) included in the second region (A2) may be different, and the thickness (t2) of the second partition (122) included in the first region (A1) and the thickness (t2) of the second partition (122) included in the second region (A2) may be different.

[0061] In some embodiments, the thickness (t1) of the first partition (112) included in the second region (A2) is greater than the thickness (t1) of the first partition (112) included in the first region (A1), and the thickness (t2) of the second partition (122) included in the second region (A2) is greater than the thickness (t2) of the second partition (122) included in the first region (A1), and the second region (A2) may be located outside the first region (A1) in a planar view.

[0062] In some other embodiments, the thickness (t1) of the first partition (112) included in the second region (A2) is greater than the thickness (t1) of the first partition (112) included in the first region (A1), and the thickness (t2) of the second partition (122) included in the second region (A2) is greater than the thickness (t2) of the second partition (122) included in the first region (A1), and the planar shape of the first region (A1) has the shape of a person's body in contact with the functional mat (100), and the second region (A2) may be an area of ​​the functional mat (100) excluding the first region (A1). In some embodiments, the planar shape of the first region (A1) may have the shape of a person's buttocks in contact with the functional mat (100) when seated. That is, the thickness of the first and second partitions (112, 121) placed in the first area (A1) of the functional mat (100) corresponding to the shape of a person's buttocks may be thinner than the thickness of the first and second partitions (112, 121) placed in the second area (A2).

[0063] Meanwhile, the height of the first partition (112) included in the first area (A1) and the height of the first partition (112) included in the second area (A2) are the same, and the height of the second partition (122) included in the first area (A1) and the height of the second partition (122) included in the second area (A2) are the same, and the height of the first partition (112) and the height of the second partition (122) may refer to the length in the z-direction.

[0064] The functional mat (100) according to the present invention provides a maximum body pressure distribution effect in a desired area by forming the heights of the first partition wall (112) and the second partition wall (122) constituting the upper layer (110) and the lower layer (120) constituting the functional mat in the entire area equally. At the same time, by forming the thickness of the partition wall placed in the first area (A1) corresponding to the human body shape of the user in contact with the functional mat (100) thinner than the thickness of the partition wall placed in the second area (A2), which is the other area, the body pressure distribution is easy in the first area (A1) where the body pressure applied by the user's sitting is high, and the body pressure absorption is easy in the second area (A2) where the body pressure is relatively low, thereby further improving the stability of body pressure distribution.

[0065] Referring to FIGS. 6 and 7, a functional mat (100) according to another embodiment may further include a third region (A3) to a fifth region (A5) in which the width of the through hole or the thickness of the partition wall is different from that of the first region (A1) and the second region (A2).

[0066] A functional mat (100) according to the present invention, comprising at least two regions having different thicknesses of partitions forming a through hole on a planar surface, can provide a comfortable seating sensation to a user or seated person by designing the thicknesses differently according to the shape of the human body in contact with the functional mat (100) to distribute body pressure more efficiently and stably.

[0067] In addition, according to the functional mat (100) of the present invention, the smooth ventilation structure allows air to flow smoothly inside, thereby effectively dissipating sweat that may occur when sitting and evenly distributing the load caused by the weight of the person sitting, thereby providing a comfortable sitting sensation.

[0068] In the foregoing, although all components constituting the embodiments of the present disclosure have been described as being combined or operating together, the technical concept of the present disclosure is not necessarily limited to such embodiments. That is, within the scope of the purpose of the present disclosure, all such components may be implemented by selectively combining one or more of them.

[0069] Furthermore, although embodiments of the present disclosure have been described above with reference to the drawings, those skilled in the art will understand that the present disclosure may be practiced in other specific forms without altering the technical concept or essential features thereof. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. The scope of protection of the present disclosure shall be interpreted by the claims below, and all technical concepts within the equivalent scope shall be interpreted as being included within the scope of rights of the technical concepts defined by the present disclosure. Explanation of the symbols

[0071] 100 : Functional mat 110: Upper layer 111: First through hole 112: 1st bulkhead 120: Lower layer 121: Second through hole 122: Second bulkhead 130 : Side wall 140 : Center rib A1: Area 1 A2: Area 2

Claims

Claim 1 An upper layer having a plurality of first through holes formed along a first direction, wherein the plurality of first through holes are spaced apart from each other in a second direction perpendicular to the first direction by a first partition and are continuously formed; A functional mat comprising a lower layer disposed on the lower side of the upper layer, which is the other side of the first direction, wherein a plurality of second through holes are formed penetrating along the first direction, and the plurality of second through holes are spaced apart from each other by a second partition wall and are continuously formed in the second direction, wherein the functional mat comprises a first region and a second region on a plane, wherein the thickness of the first partition wall included in the first region and the thickness of the first partition wall included in the second region are different, and the thickness of the second partition wall included in the first region and the thickness of the second partition wall included in the second region are different, and the height of the first partition wall included in the first region and the height of the first partition wall included in the second region are the same, and the height of the second partition wall included in the first region and the height of the second partition wall included in the second region are the same, wherein the thickness of the first partition wall and the thickness of the second partition wall represent the width of the partition wall in the second direction, and the height of the first partition wall and the height of the second partition wall are in the first direction A functional mat characterized by having a length, wherein each of the plurality of first through holes and each of the plurality of second through holes correspond one-to-one and communicate with each other in the first direction, the center of the first through hole and the center of the second through hole coincide, the center of the first partition wall and the center of the second partition wall coincide, and the upper layer and the lower layer are integrally joined. Claim 2 A functional mat according to claim 1, wherein the thickness of the first partition included in the second region is greater than the thickness of the first partition included in the first region, and the thickness of the second partition included in the second region is greater than the thickness of the second partition included in the first region, and the second region is located outward from the first region in a planar manner. Claim 3 delete Claim 4 A functional mat according to claim 1, wherein the maximum thickness of the first partition wall connected to each other is formed to be thinner than the minimum thickness of the second partition wall. Claim 5 A functional mat according to claim 1, wherein the thickness of the first partition wall decreases along the upper direction, which is one side of the first direction, and the thickness of the second partition wall decreases along the lower direction, which is the other side of the first direction. Claim 6 In claim 4, the thickness of the first partition and the thickness of the second partition are constant along the upper direction, which is one side of the first direction, a functional mat. Claim 7 A functional mat according to claim 4, further comprising a central rib formed to connect mutually facing partitions at at least one of the first through hole, the second through hole, and the connecting portion where the first through hole and the second through hole are in communication. Claim 8 A functional mat according to claim 1, wherein the cross-sectional shape (planar shape) of the plurality of first through holes and the plurality of second through holes is polygonal or circular. Claim 9 A functional mat according to claim 1, wherein the thickness of the first partition included in the second region is greater than the thickness of the first partition included in the first region, and the thickness of the second partition included in the second region is greater than the thickness of the second partition included in the first region, the planar shape of the first region has the shape of a person's body in contact with the functional mat, and the second region is the region of the functional mat excluding the first region. Claim 10 In claim 9, the planar shape of the first region has the shape of a person's buttocks that come into contact with the functional mat when seated, a functional mat. Claim 11 In claim 1, the functional mat further comprises a third area on a plane, wherein the thickness of the first partition included in the third area is different from the thickness of the first partition included in the first area and the thickness of the first partition included in the second area, and the thickness of the second partition included in the third area is different from the thickness of the second partition included in the first area and the thickness of the second partition included in the second area. Claim 12 A functional mat according to claim 1, wherein the lower layer is positioned at the lower side of the upper layer in the other side of the first direction and extends downward from the upper layer.

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