Mattress device

Abstract

To provide a mattress device that prevents heat and moisture from accumulating inside a cover member, and can be comfortably used by a user.SOLUTION: A mattress device 100 has: a mattress 110 comprising a plurality of expandable / contractible air cells 115; a cover member 120 housing the mattress 110; and a ventilation fan 150 arranged inside the cover member, and discharging air from the inside of the cover member to the outside of the cover member.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a mattress arrangement with a ventilation fan. [Background technology]

[0002] A so-called "pressure switching mattress" equipped with air cells that expand and contract as air or other fluids are supplied and discharged is known as a mattress provided to prevent bedsores (pressure ulcers) from developing in patients or those requiring care (hereinafter referred to as "users") who have difficulty turning over or changing positions (see Patent Document 1). When the user uses the mattress, the mattress can be housed in a specified cover member. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-226264 Summary of the Invention [Problem to be solved by the invention]

[0004] When using the mattress, if the user lies on the cover member for a certain period of time, heat and moisture may build up inside the cover member. If the mattress continues to be used in this state, the heat will be transferred to the surface of the user's skin that is in contact with the cover member, causing the user's temperature to rise, which will cause discomfort to the user.

[0005] The present invention has been made in consideration of the above circumstances, and aims to provide a mattress device that prevents heat and moisture from building up inside the cover member, allowing the user to use it comfortably. [Means for solving the problem]

[0006] The mattress device according to the present invention comprises a mattress having a plurality of inflatable and deflated air cells, a cover member that houses the mattress, and a ventilation fan that is disposed inside the cover member and exhausts air from the inside of the cover member to the outside of the cover member. the cover member has a mesh portion that allows air to move between the inside and outside of the cover member as the ventilation fan is operated, the cover member has an upper portion located on the side where a user is placed, a bottom portion located opposite the upper portion, and an outer circumferential side portion connecting the upper portion and the bottom portion, the ventilation fan is located on one end of the cover member where the user's feet are located, and the mesh portion is formed on the bottom and includes an intake mesh portion that allows air to flow from the outside of the cover member into the inside of the cover member, and an exhaust mesh portion that is formed on a third outer circumferential side portion located on the one end of the cover member and exhausts air from the inside of the cover member to the outside of the cover member, It has. [Effects of the Invention]

[0007] According to the mattress device of the present invention, by operating the ventilation fan, air can be exhausted from inside the cover member to outside the cover member, thereby preventing heat and moisture from building up inside the cover member and suppressing heat transfer to the surface of the user's skin that is in contact with the cover member. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view of a mattress device according to an embodiment; [Figure 2] FIG. 2 is an exploded perspective view of the mattress device according to the embodiment. [Figure 3] FIG. 2 is a plan view of a base sheet according to the embodiment. [Figure 4] 4 is a side view of the base sheet as viewed in the direction of arrow 4A shown in FIG. 3. FIG. [Figure 5] 5 is a front view of the base sheet as viewed in the direction of arrow 5A shown in FIG. 3. FIG. [Figure 6] FIG. 1 is a partial cross-sectional view showing an example of use of a mattress device according to an embodiment. [Figure 7] FIG. 10 is an exploded perspective view of a mattress device according to a modified example. [Figure 8] FIG. 10 is a partial cross-sectional view showing an example of use of a mattress device according to a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. In the description of the drawings, the same elements are designated by the same reference numerals, and duplicate explanations will be omitted. Furthermore, the dimensional proportions in the drawings are exaggerated for the convenience of explanation and may differ from the actual proportions.

[0010] 1 to 5 show the configuration of each part of a mattress device 100 according to this embodiment, and FIG. 6 shows an example of how the mattress device 100 is used.

[0011] Arrows X1-X2 shown in each drawing indicate the longitudinal direction of mattress 110, arrows Y1-Y2 indicate the width direction of mattress 110, and arrows Z1-Z2 indicate the height direction of mattress 110.

[0012] <Mattress device> As shown in Figures 1 and 2, the mattress device 100 generally comprises a mattress 110 having a plurality of inflatable and deflated air cells 115, a cover member 120 that houses the mattress 110, and a ventilation fan 150 that is arranged inside the cover member 120 and exhausts air from inside the cover member 120 to outside the cover member 120.

[0013] <Mattress> As shown in FIGS. 2 and 6, the mattress 110 is composed of a plurality of air cells 115 arranged in a line along the longitudinal direction of the mattress 110.

[0014] Each air cell 115 includes a first cell 115a, a second cell 115b, and a third cell 115c arranged in order along the height direction of the mattress 110. The first cell 115a has a larger cross-sectional area than the second cell 115b and the third cell 115c. The second cell 115b and the third cell 115c have approximately the same cross-sectional area. Each of the cells 115a, 115b, and 115c is made of a material that can airtightly retain the air supplied to the interior of each cell 115a, 115b, and 115c.

[0015] As shown in Figure 2, a predetermined tube 118 is connected to each air cell 115. The tube 118 is connected to a control unit 10 that controls the supply of air to and the discharge of air from the air cells 115. The control unit 10 functions as a pump that enables the supply and discharge of air. The mattress device 100 can individually inflate and deflate any of the multiple air cells 115 arranged along the longitudinal direction of the mattress 110 by controlling the operation of the control unit 10.

[0016] As shown in Figures 2 and 6, the mattress 110 has a concave cutout 116 that allows a ventilation fan 150 to be placed between the mattress 110 and the cover member 120 (the base sheet 140 that constitutes the cover member 120) at a position on the bottom 110b side of the mattress 110.

[0017] As shown in Fig. 2, the cutout portion 116 can be configured by adjusting the widthwise lengths of, for example, three (or five) air cells 115 from the most end side (the end side located on the arrow X1 side) of the mattress 110. In the configuration example shown in Fig. 2, the second cells 115b and the third cells 115c are not provided in some of the air cells 115 located on the most end side of the mattress 110. Therefore, a space forming the cutout portion 116 is defined between the air cells 115 located on the most end side of the mattress 110 and the bottom portion 110b of the mattress 110.

[0018] 6, the mattress device 100 can prevent interference between the mattress 110 and the ventilation fan 150 by arranging the ventilation fan 150 in a concave cutout portion 116 provided in the mattress 110. This can prevent the height (thickness) of the mattress 110 from becoming unnecessarily large when the mattress 110 and the ventilation fan 150 are housed inside the cover member 120.

[0019] There are no particular restrictions on the material of which the air cells 115 are made, the number of air cells 115 arranged in the longitudinal direction of the mattress 110, the cross-sectional shape and cross-sectional area of ​​each air cell 115, or the specific control method for the expansion and contraction movements of the air cells 115.

[0020] <Cover material> As shown in FIGS. 2 and 6, the cover member 120 includes a top cover 130 and a base sheet 140 that is configured to be connectable to and detachable from the top cover 130.

[0021] The top cover 130 constitutes an upper portion 120a of the cover member 120 located on the side where the user rests, and the base sheet 140 constitutes a bottom portion 120b of the cover member 120 located on the opposite side to the upper portion 120a.

[0022] 2, the base sheet 140 has an outer periphery side portion that extends in the height direction of the mattress 110. The outer periphery side portion of the base sheet 140 constitutes the outer periphery side portion 120c of the cover member 120.

[0023] The top cover 130 and the base sheet 140 can be configured to be connectable and detachable to each other, for example, by a mechanical connecting structure such as buttons or hook-and-loop fasteners arranged on each member. When the top cover 130 and the base sheet 140 are connected to form the cover member 120, an internal space 120A capable of accommodating the mattress 110 is formed inside the cover member 120 (see FIG. 6).

[0024] The outer circumferential side portion 120c of the cover member 120 includes a first outer circumferential side portion 121, a second outer circumferential side portion 122, a third outer circumferential side portion 123, and a fourth outer circumferential side portion .

[0025] The cover member 120 has a generally rectangular planar shape with four side surfaces consisting of four outer peripheral side portions 121, 122, 123, and 124 (see FIG. 3).

[0026] As shown in FIG. 2, the cover member 120 has a plurality of mesh portions 126, 127, 128 that allow air to move between the inside and outside of the cover member 120 as the ventilation fan 150 operates.

[0027] Each of mesh portions 126, 127, 128 has a plurality of holes that communicate with the outside and inside of base sheet 140. The plurality of holes can be configured, for example, as through-holes formed in the fabric main body that constitutes the mesh portion in base sheet 140.

[0028] By operating the ventilation fan 150 , the mattress device 100 can smoothly move air between the inside and outside of the cover member 120 via the mesh portions 126 , 127 , 128 .

[0029] As shown in Figures 2 and 3, the mesh portion has a first air intake mesh portion 126 arranged on the outer peripheral side portion 120c connecting the top portion 120a and the bottom portion 120b of the cover member 120, a second air intake mesh portion 127 formed on the bottom portion 120b of the cover member 120, and an exhaust mesh portion 128 arranged on the outer peripheral side portion 120c.

[0030] 4, the first air intake mesh portion 126 can be formed on at least one of the first outer periphery side portion 121 and the second outer periphery side portion 122 which face each other with the upper limbs of the user H sandwiched therebetween. In this embodiment, the first air intake mesh portion 126 is formed on a part of the first outer periphery side portion 121 which is located on the left side in the width direction of the mattress 110.

[0031] As shown in FIG. 3, the second air intake mesh portion 127 is formed on a part of the bottom portion 120b.

[0032] The first intake mesh portion 126 and the second intake mesh portion 127 can be formed, for example, at a position closer to the other end side (arrow X2 side) where the user's head is placed than the longitudinal center position of the cover member 120.

[0033] The exhaust mesh portion 128 can be formed, for example, in a part of the third outer periphery side portion 123 located on one end side in the longitudinal direction (the side of the arrow X1).

[0034] The exhaust mesh portion 128 can be formed, for example, at a position closer to the right (toward the second outer periphery side portion 122) than the center position in the width direction of the cover member 120.

[0035] There are no particular limitations on the shape or number of holes provided in each of the mesh portions 126, 127, and 128. There are also no particular limitations on the specific positions at which each of the mesh portions 126, 127, and 128 is provided, or the proportion (area) that each of the mesh portions 126, 127, and 128 occupies in each of the outer circumferential side portions 121, 123, and the bottom portion 120b. For example, the intake mesh portion can be selectively provided in the first outer circumferential side portion 121, the second outer circumferential side portion 122, and the fourth outer circumferential side portion 124 located on the other end of the cover member 120 where the user's head side is located.

[0036] Furthermore, the cover member 120 may be configured to allow air movement between the inside and outside of the cover member 120 by using a structure other than the mesh portion. For example, by replacing a part of the cover member 120 with a breathable material, it is possible to provide the same function as the mesh portion.

[0037] The top cover 130 can be made of, for example, a moisture-permeable material, such as a moisture-permeable PU laminated fabric.

[0038] The base sheet 140 can be made of, for example, a moisture-impermeable material, such as a moisture-impermeable PU laminated fabric.

[0039] The cover member 120 does not have to be made up of multiple members consisting of the top cover 130 and the base sheet 140. For example, the cover member 120 may be made up of a bag-shaped member that defines a space inside which the mattress 110 can be accommodated.

[0040] As shown in FIG. 1, the mattress apparatus 100 includes a delivery section 119 .

[0041] A tube 118 connected to the mattress 110 and a cable (not shown) connected to the ventilation fan 150 are housed inside the supply unit 119. The supply unit 119 can be pulled out to the outside of the base sheet 140, for example, through an opening 129 formed in the third outer peripheral side portion 123 of the base sheet 140.

[0042] User H can inflate or deflate the air cells 115 of the mattress 110, start or stop the ventilation fan 150, and adjust the suction volume by operating the buttons on the panel provided on the control unit 10 or by performing input operations via an external communication device such as a smartphone.

[0043] Figure 6 shows an example of how the mattress device 100 is used. Figure 6 is a simplified partial cross-sectional view of a mattress 110 taken along its longitudinal direction.

[0044] By inflating or deflating any of the air cells 115 while the user H is lying on the cover member 120 containing the mattress 110, it is possible to prevent the body pressure of the user H from concentrating on one part, thereby effectively preventing the user H from developing bedsores or the like.

[0045] Furthermore, when the ventilation fan 150 is operated while the user H is lying on the upper portion 120a of the cover member 120, the suction force of the ventilation fan 150 draws air from the outside to the inside of the cover member 120 through the intake mesh portions 126 and 127. The air drawn into the inside of the cover member 120 is exhausted to the outside of the cover member 120 through the exhaust mesh portion 128, which is positioned close to the ventilation fan 150. The user H can move air between the inside and outside of the cover member 120 by operating the ventilation fan 150 to generate forced convection. This prevents heat and moisture from building up inside the cover member 120. As described above, the mattress device 100 can suppress heat transfer to the skin surface of the user H, which is in contact with the cover member 120, thereby preventing the user H's body temperature from rising. In particular, the cover member 120 according to this embodiment moves the air drawn in from the first outer peripheral side portion 121 and the bottom portion 120b along the longitudinal direction of the mattress 110, thereby preventing heat and moisture from building up around the back where the contact area between the body and the cover member 120 is large. Therefore, it is possible to effectively prevent the body temperature of the user H from rising.

[0046] (Variation) 7 shows a mattress device 200 according to a modified example. In the following explanation, explanations of components and usage examples already explained in the above-described embodiment will be omitted as appropriate. Furthermore, content not specifically explained in the modified example can be the same as that in the above-described embodiment.

[0047] The mattress device 200 according to the modified example includes a breathable base mat 160 arranged between the mattress 110 and the bottom part 120b of the cover member 120 (the bottom part of the base sheet 140).

[0048] In the mattress device 200, the air exhaust mesh section 128 and the opening 129 are located on the left side in the width direction of the mattress 110. In addition, two air intake mesh sections 127 are located on the bottom section 120b of the cover member 120. Note that the specific positions at which the mesh sections are located in the mattress device 200 are not particularly limited. For example, the mesh sections can be configured in the same way as in the mattress device 100 according to the above-described embodiment.

[0049] The top cover 130 and the base sheet 140 may be made of a moisture-impermeable material, such as a moisture-impermeable PU laminated fabric.

[0050] The base mat 160 is made of, for example, synthetic fiber (polyether ester elastomer) The three-dimensional network structure can be constructed as follows.

[0051] FIG. 8 shows an example of how the mattress device 200 is used.

[0052] When the ventilation fan 150 is operated while the user H is lying on the upper part 120a of the cover member 120 containing the mattress 110, air is sucked into the inside of the cover member 120 through the intake mesh sections 126, 127. The air sucked in through the second intake mesh section 127 formed on the bottom section 120b passes through the inside of the base mat 160 disposed between the mattress 110 and the bottom section 120b and is guided to the exhaust mesh section 128 side. As the air passes through the inside of the base mat 160, heat and moisture trapped inside the cover member 120 can be efficiently discharged to the outside. Furthermore, by including the base mat 160, the mattress device 200 can more effectively prevent the body pressure of the user H lying on the mattress 110 from concentrating on one part of the body.

[0053] The mattress device of the present invention has been described above through embodiments and modified examples, but the present invention is not limited to the content described in the specification and can be modified in various ways based on the description of the claims.

[0054] There are no particular restrictions on the specific structure, materials, specifications, size, or shape of each part of the mattress device, as long as it comprises a mattress, a cover member, and a ventilation fan that allows air to move between the inside and outside of the cover member. [Explanation of symbols]

[0055] 10. Control Unit 100 Mattress device 110 Mattress 110b Bottom of the mattress 115 Air Cell 116 Notch 118 tubes 119 Feeding section 120 Cover member 120A Internal space of cover member 120a Upper part of cover member 120b Bottom of cover member 120c Outer circumferential side portion of cover member 121 first outer peripheral side portion 122 second outer peripheral side 123 Third outer periphery 124 Fourth outer periphery side 126 First intake mesh part (mesh part) 127 Second intake mesh part (mesh part) 128 Exhaust mesh section 130 Top cover 140 base sheet 150 Ventilation Fan 160 Base Mat 200 Mattress Device H user

Claims

1. a mattress having a plurality of inflatable and deflated air cells; a cover member that houses the mattress; a ventilation fan disposed inside the cover member and configured to exhaust air from the inside of the cover member to the outside of the cover member; the cover member has a mesh portion that allows air to move between the inside and the outside of the cover member in accordance with operation of the ventilation fan, the cover member has an upper portion located on the side where a user sits, a bottom portion located on the opposite side to the upper portion, and an outer peripheral side portion connecting the upper portion and the bottom portion, the ventilation fan is disposed on one end of the cover member where a user's feet are located, The mesh portion is an intake mesh portion formed on the bottom portion, which allows air to flow from the outside of the cover member to the inside of the cover member; A mattress device having an exhaust mesh portion formed on a third outer peripheral side portion located on the one end side of the cover member, which exhausts air from inside the cover member to outside the cover member.

2. The mesh portion is 2. The mattress device of claim 1, further comprising an air intake mesh portion formed on at least a portion of the first outer peripheral side portion, the second outer peripheral side portion, and the fourth outer peripheral side portion located on the other end of the cover member where the user's head is positioned, the air intake mesh portion allowing air to flow from the outside of the cover member to the inside of the cover member.

3. 3. The mattress device according to claim 1 or claim 2, wherein the mattress has a recessed cutout that allows the ventilation fan to be positioned between the mattress and the cover member at a position on the bottom side of the mattress.

4. the cover member has a top cover and a base sheet configured to be connectable and detachable to the top cover, The mattress device according to any one of claims 1 to 3, wherein the top cover is made of a moisture-permeable material.

5. the cover member has a top cover and a base sheet configured to be connectable and detachable to the top cover, The mattress further includes a breathable base mat disposed between the mattress and the base sheet, The mattress device according to any one of claims 1 to 3, wherein the top cover is made of a moisture-impermeable material.

6. A mattress device described in any one of claims 1 to 5, wherein the air intake mesh portion formed on the bottom is formed at a position closer to the other end of the cover member where the user's head side is positioned than the longitudinal center position of the cover member.

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