Cushion body

Abstract

To provide a cushion body allowing a user to easily have a fluffy feeling when the user places his / her body thereon.SOLUTION: A cushion body formed by stacking an upper cushion unit formed to contain a first cushion member on a lower cushion unit formed to contain a second cushion member, and supporting a user on the upper side, the cushion body comprises an intermediate member interposed between an upper surface of the lower cushion unit and a lower surface of the upper cushion unit so as to surround a central region of the upper cushion unit when viewed from above. The lower cushion unit includes the second cushion member and a second pad member to be disposed on an upper side of the second cushion member, and the second cushion member has an upper layer layered on an upper side of a lower layer, where the upper layer has a lower resilience than the lower layer.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a cushion body that can be used in a mattress or the like. [Background technology]

[0002] Cushions for supporting a user, such as mattresses and sofa cushion products, have been widely used. For example, Patent Document 1 discloses a mattress on which a user can lie, comprising a mattress cushion that can be separated into multiple cushion bodies in the length direction and a mattress cover that can accommodate the mattress cushion. In this case, a three-dimensional filament bonded body is used as the cushion body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2018 / 150815 Summary of the Invention [Problem to be solved by the invention]

[0004] For products using the cushioning bodies described above, it is very important that they feel good when in use. Although preferences vary from user to user, the feel generally preferred by many users is the soft feel of pressing against the air layer when the body is placed on a mattress or the like (the so-called fluffy feel).

[0005] In view of the above problems, the present invention has an object to provide a cushion body that makes it easier for a user to feel a soft and fluffy feeling when he or she places his or her body on it. [Means for solving the problem]

[0006] The cushion body according to the present invention includes an upper cushion unit formed to include a first cushion member and a lower cushion unit formed to include a second cushion member stacked vertically to support a user on the upper side. An intermediate member is interposed between the upper surface of the lower cushion unit and the lower surface of the upper cushion unit so as to surround a central region of the upper cushion unit in a top view. The lower cushion unit includes the second cushion member and a second pad member disposed above the second cushion member. The second cushion member has an upper layer layered above a lower layer layer, the upper layer having a lower resilience than the lower layer. This configuration makes it easier for the user to feel a soft, fluffy sensation when they place their body on it. Note that "surrounding the central region" here is not limited to a completely surrounding configuration, but also includes a configuration in which there is a gap but the central region is essentially surrounded.

[0007] More specifically, the second pad member may have a lower resilience than the second cushion member. More specifically, the intermediate member may extend along an outer edge of the upper cushion unit in a top view so as to surround the inside.

[0008] More specifically, the above configuration may include an upper cover member that covers the upper cushion unit, and a fastener that detachably connects the upper cover member and the lower cover member as the intermediate member.

[0009] More specifically, the upper cushion unit may be configured by placing a pad member having a lower resilience than a first cushion member on the upper side of a first cushion member which is a three-dimensional filament bonded body obtained by three-dimensionally fusion-bonding filaments made of thermoplastic resin.

[0010] More specifically, the lower cushion unit may be configured by disposing a second pad member having a lower resilience than a second cushion member, the second cushion member being a three-dimensional filament bonded body obtained by three-dimensionally fusing and bonding filaments made of thermoplastic resin, on the upper side of the second cushion member. The cushion body may be a mattress. [Effects of the Invention]

[0011] The cushion body according to the present invention makes it easier for the user to feel a soft and fluffy feeling when he or she places his or her body on it. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a schematic cross-sectional side view of a mattress M1 according to the present embodiment. [Figure 2] 1 is a schematic diagram showing the configuration of an upper unit 1 of a mattress M1 as viewed from below. [Figure 3] 1 is a schematic diagram showing the configuration of a lower unit 2 of a mattress M1 as viewed from above. [Figure 4] 1 is a schematic cross-sectional side view of a mattress M2. [Figure 5] 1 is a schematic diagram showing the configuration of an upper unit 1 of a mattress M2 as viewed from below. [Figure 6] 1 is a schematic diagram showing the configuration of a lower unit 2 of a mattress M2 as viewed from above. DETAILED DESCRIPTION OF THE INVENTION

[0013] An exemplary embodiment of the present invention will be described below with reference to the drawings. In the following description, the up-down, left-right, and front-to-back directions are as shown in Figure 1 etc. In this embodiment, the up-down direction corresponds to the vertical direction, the front-to-back direction corresponds to the height direction of a user lying on their back on the mattress, and the left-to-right direction corresponds to the left-to-right direction as seen from the user.

[0014] Fig. 1 is a schematic side cross-sectional view of a mattress M1 according to this embodiment. The mattress M1 is formed by connecting an upper unit 1 and a lower unit 2 disposed below it with a fastener 3, and can support a user lying down on the upper side. Fig. 2 is a schematic diagram of the upper unit 1 as viewed from below, and Fig. 3 is a schematic diagram of the lower unit 2 as viewed from above.

[0015] The upper unit 1 has a first cushion member 11, a first pad member 12, and an upper cover member 13. The first cushion member 11 is a three-dimensional filament bonded body obtained by three-dimensionally fusing and bonding filaments made of thermoplastic resin, and is a cushion member formed in the shape of a plate having a rectangular shape when viewed from above and a thickness direction extending from top to bottom.

[0016] The three-dimensional filament assembly has good breathability and is easy to wash with water, making it excellent for hygienic use. Since the manufacturing method of the three-dimensional filament assembly is well known, detailed description thereof will be omitted here. In this embodiment, the thickness of the first cushion member 11 is approximately 3.5 cm.

[0017] The first pad member 12 is a plate-shaped member that is rectangular when viewed from above and has a thickness direction from top to bottom, and is disposed above the first cushion member 11. The shape and dimensions of the first pad member 12 when viewed from above are the same as those of the first cushion member 11, and the positions of the outer edges of the first pad member 12 and the first cushion member 11 when viewed from above generally coincide. The first pad member 12 is made of, for example, a polyester material, and has a sufficiently lower resilience than the first cushion member 11, providing a very soft feel.

[0018] The upper cover member 13 is made of a thin fabric and is a cover member that covers the first cushion member 11 and the first pad member 12 (hereinafter, these may be collectively referred to as the "upper cushion unit C1"). The upper cover member 13 is formed so as to completely cover the top surface and the front, rear, left and right side surfaces of the upper cushion unit C1, and also to cover part of the underside of the upper cushion unit C1 (the underside of the first cushion member 11).

[0019] 2, the upper cover member 13 has an opening 13a that exposes most of the area of ​​the underside of the first cushion member 11 near the center when viewed from above. As a result, the upper cover member 13 covers only the areas near the front, rear, left, and right outer edges of the underside of the first cushion member 11. The upper cushion unit C1 can be inserted into or removed from the upper cover member 13 via the opening 13a.

[0020] A fastener 3 is provided on the edge of the opening 13a, extending along almost the entire circumference. The fastener 3 can also be seen as extending along the outer edge of the upper cushion unit C1 when viewed from above, surrounding the inside. The fastener 3 is made of a material such as metal or plastic, and is sufficiently hard compared to the other components of the mattress M1, including the upper cushion unit C1 and the lower cushion unit C2, which will be described later.

[0021] The lower unit 2 has a second cushion member 21, a second pad member 22, and a lower cover member 23. The second cushion member 21 is a front second cushion member 21a, a middle second cushion member 21a, and a rear second cushion member 21c arranged in the front-to-rear direction. Each of the second cushion members 21a-21c is a three-dimensional filament bonded body obtained by three-dimensionally fusion-bonding filaments made of thermoplastic resin, and is a cushion member formed in a plate shape with the thickness direction extending from top to bottom, and is formed to each have the same shape and dimensions. In this embodiment, the thickness of each of the second cushion members 21a-21c is approximately 20 cm.

[0022] The front second cushion member 21a has an upper layer 21a2 stacked on top of a lower layer 21a1, with the upper layer 21a2 having a lower resilience than the lower layer 21a1. The middle second cushion member 21b has an upper layer 21b2 stacked on top of a lower layer 21b1, with the upper layer 21b2 having a lower resilience than the lower layer 21b1. The rear second cushion member 21c has an upper layer 21c2 stacked on top of a lower layer 21c1, with the upper layer 21c2 having a lower resilience than the lower layer 21c1. In this way, the second cushion member 21 has a configuration in which layers with different resiliences are stacked one above the other.

[0023] Each of the second cushion members 21a-21c can be formed, for example, by forming a lower layer and an upper layer separately and then bonding them together by adhesive or the like. However, each of the second cushion members 21a-21c may also be formed as an integrated body in which the lower layer and the upper layer are integrated from the beginning. Such a cushion member can be realized, for example, by using a relatively thicker filament or increasing the bulk density of the filament in the side with a higher repulsive force during the production of the integrated body (the three-dimensional filament assembly).

[0024] The second pad member 22 is a plate-shaped member that is rectangular when viewed from above and has a thickness direction from top to bottom, and is disposed above the second cushion member 21. The shape and dimensions of the second pad member 22 when viewed from above are the same as those of the second cushion member 21, and the positions of the outer edges of the second pad member 22 and the first cushion member 21 when viewed from above generally coincide. The second pad member 12 is formed from, for example, a polyester material, and has a sufficiently lower resilience than the second cushion member 21, providing an extremely soft feel.

[0025] The lower cover member 23 is made of a thin fabric and is a cover member that covers the second cushion member 21 and the second pad member 22 (hereinafter, these may be collectively referred to as the "lower cushion unit C2"). The lower cover member 23 is formed so as to completely cover the lower surface and the front, rear, left and right side surfaces of the lower cushion unit C2, and also to cover part of the upper surface of the lower cushion unit C2 (the upper surface of the second pad member 22).

[0026] 3, the lower cover member 23 has an opening 23a that exposes most of the area of ​​the upper surface of the second pad member 22 near the center when viewed from above. As a result, the lower cover member 23 covers only the areas near the front, rear, left, and right outer edges of the upper surface of the second pad member 22. The lower cushion unit C2 can be inserted into or removed from the lower cover member 23 via the opening 23a.

[0027] A fastener 3 is provided on the edge of the opening 23a so as to extend around almost the entire circumference. The fastener 3 can also be seen as extending so as to surround the inside along the outer edge of the lower cushion unit C2 when viewed from above. The fasteners 3 provided on the upper cover member 13 and the lower cover member 23 overlap when viewed from above, and opening and closing the fastener 3 allows these cover members 13, 23 to be detachably connected.

[0028] By connecting these cover members 13, 23, the upper unit 1 and the lower unit 2 are integrated to form the mattress M1. Furthermore, by opening the fastener 3 and separating the upper unit 1 and the lower unit 2, it becomes convenient to carry the mattress, and it also becomes possible to wash the cushion units C1, C2 and the cover members 13, 23 separately. The positions of the outer edges of the upper cushion unit C1 and the lower cushion unit C2 when viewed from above are roughly aligned, and the overall shape of the mattress M1 formed by closing the fastener 3 is roughly a rectangular parallelepiped.

[0029] The mattress M1 described above is configured to take advantage of the body pressure dispersion provided by the first cushion member 11, which has relatively high resilience characteristics, while also providing a soft first pad member 12 on top of it. This allows the user to feel the softness as an initial sensation when they lay their body on the mattress M1.

[0030] Furthermore, in the mattress M1, a fastener 3 (corresponding to the intermediate member of the present invention) is interposed between the upper surface of the lower cushion unit C2 and the lower surface of the upper cushion unit C1 so as to surround the central region of the upper cushion unit C1 when viewed from above. Therefore, a space SP (which can also be seen as an air layer) corresponding to the height (vertical dimension) of the fastener 3 is likely to be formed in the region surrounded by the fastener 3 between the upper surface of the lower cushion unit C2 and the lower surface of the upper cushion unit C1.

[0031] As a result, when a user places their body on the mattress M1, the upper cushion unit C1 and the lower cushion unit C2 come into contact with each other, with one cushion between them. This makes it easier for the user to feel a soft sensation (so-called fluffy feeling) as if they are pressing against the air layer when they place their body on the mattress M1. In particular, in this embodiment, the fastener 3 extends along the outer edge of the upper cushion unit C1 as viewed from above, surrounding the inside, so that the space SP is formed over as wide an area as possible as viewed from above, making it possible to feel a fluffy feeling over a wide area.

[0032] When the user places their body on the mattress M1, the air in the space SP gradually leaks out through the gaps in the fastener 3 and the upper and lower cover members 13, 23. If the airtightness of the space SP is set so that the air leaks out slowly, the user can feel even more fluffy.

[0033] Furthermore, the second cushion member 21 of the mattress M1 has a lower resilience in the upper layer, which is relatively closer to the user, to provide a soft feel, while the lower layer has a higher resilience than the upper layer. This minimizes deterioration (sagging, etc.) of the mattress M1 over long periods of use. In this embodiment, the second cushion member 21 is formed by arranging multiple cushion members 21a to 21c in a front-to-back fashion, but it may also be formed as a single cushion member.

[0034] Furthermore, in mattress M1, openings 13a and 23a are provided in upper cover member 13 and lower cover member 23, respectively, but one or both of these openings 13a and 23a may be omitted. Figure 4 is a schematic side cross-sectional view of a mattress M2 in which neither of these openings 13a and 23a is provided.

[0035] Fig. 5 is a schematic diagram of the upper unit 1 of the mattress M2 viewed from below, and Fig. 6 is a schematic diagram of the lower unit 2 of the mattress M2 viewed from above. In the mattress M2 without an opening, a separate opening for inserting and removing the upper cushion unit C1 is provided in the upper cover member 13, and a separate opening for inserting and removing the lower cushion unit C2 is provided in the lower cover member 23.

[0036] In mattress M2, as shown in Fig. 5, upper cover member 13 covers the entire underside of upper cushion unit C1, and in this covered portion, fasteners 3 extend so as to surround the inside along the outer edge of upper cushion unit C1 when viewed from above. Also, as shown in Fig. 6, lower cover member 23 covers the entire top side of lower cushion unit C2, and in this covered portion, fasteners 3 are provided at the same position as the fasteners 3 provided on upper cover member 13 when viewed from above.

[0037] By closing the fastener 3, it is possible to form the mattress M2 by connecting the upper cover member 13 and the lower cover member 23. As with the mattress M1, the fastener 3 also helps to form the space SP in the mattress M2, making it easier for the user to feel a soft and fluffy sensation when they lay down on it.

[0038] As explained above, the mattress according to this embodiment is a cushion body in which an upper cushion unit C1 and a lower cushion unit C2, each formed to include a cushion member, are stacked one on top of the other to support a user on the upper side, and an intermediate member is interposed between the upper surface of the lower cushion unit C2 and the lower surface of the upper cushion unit C1 so as to surround the central region of the upper cushion unit C1 when viewed from above. Therefore, this mattress makes it easier for the user to feel a soft and fluffy sensation when they lay on it.

[0039] In this embodiment, a fastener 3 is used as the intermediate member, but the specific form of the intermediate member is not particularly limited as long as it does not deviate from the spirit of the present invention. Furthermore, in this embodiment, a mattress is used as an example of a cushion body, but the cushion body according to the present invention is not limited to this and can be used for various other cushion products.

[0040] Although the embodiments of the present invention have been described above, the configuration of the present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the invention. In other words, the above embodiments are illustrative in all respects and should be considered not to be limiting. The technical scope of the present invention is defined by the claims, not by the description of the above embodiments, and should be understood to include all modifications that fall within the meaning and scope of the claims. [Industrial Applicability]

[0041] The present invention can be used for a cushion body used in a mattress or the like. [Explanation of symbols]

[0042] 1 Upper unit 11 First cushion member 12 First pad member 13 Upper cover member 13a opening 2 Lower unit 21 second cushion member 21a front second cushion member 21a1 Lower layer portion of front second cushion member 21a2 Upper layer of front second cushion member 21b Middle second cushion member 21b1 Lower layer of middle second cushion member 21b2 Upper layer of middle second cushion member 21c rear second cushion member 21c1 Lower layer of rear second cushion member 21c2 Upper layer of rear second cushion member 22 second pad member 23 Lower cover member 23a opening 3 Zipper

Claims

1. A cushion body in which an upper cushion unit formed to include a first cushion member and a lower cushion unit formed to include a second cushion member are stacked one on top of the other, and which supports a user on the upper side, an intermediate member is interposed between an upper surface of the lower cushion unit and a lower surface of the upper cushion unit so as to surround a central region of the upper cushion unit as viewed from above, the lower cushion unit has the second cushion member and a second pad member disposed above the second cushion member, The second cushion member has an upper layer layered on top of a lower layer layer, and the upper layer layer has a lower resilience than the lower layer layer.

2. The cushion body according to claim 1 , wherein the second pad member has a lower repulsive force than the second cushion member.

3. 3. The cushion body according to claim 1, wherein the intermediate member extends along an outer edge of the upper cushion unit in a top view so as to surround the inside thereof.

4. an upper cover member that covers the upper cushion unit; 4. The cushion body according to claim 1, wherein the intermediate member is provided with a fastener for detachably connecting the upper cover member and the lower cover member.

5. The upper cushion unit is 5. The cushion body according to claim 1, wherein the cushion body is formed by placing a pad member having a lower resilience than a first cushion member on the upper side of the first cushion member, the pad member being a three-dimensional filament bonded body obtained by three-dimensionally fusion-bonding filaments made of a thermoplastic resin.

6. The lower cushion unit is 6. The cushion body according to claim 1, wherein the cushion body is formed by placing a second pad member having a lower resilience than the second cushion member on the upper side of the second cushion member, the second cushion member being a three-dimensional filament bonded body obtained by three-dimensionally fusion bonding filaments made of a thermoplastic resin.

7. 7. The cushion body according to claim 1, wherein the cushion body is a mattress.

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