Air-blowing sheet, air-blowing mechanism, mattress with air-blowing sheet, and bed

Abstract

According to an embodiment, this air-blowing sheet comprises a cover, a diffusion layer, and a sheet member. The cover is waterproof and moisture-permeable. The diffusion layer is provided inside the cover. The diffusion layer is air-permeable. The sheet member is slippery. The diffusion layer is provided inside the sheet member.

Description

Air blower sheet, air blower mechanism, mattress with air blower sheet and bed

[0001] Embodiments of the present invention relate to a blower sheet, a blower mechanism, a mattress with a blower sheet, and a bed.

[0002] It is desirable that the air conditions (temperature and humidity) between the mattress and the user be properly adjusted.

[0003] Japanese Patent Publication No. 2010-246903

[0004] The embodiment provides a ventilation sheet, a ventilation mechanism, a mattress with a ventilation sheet, and a bed that can efficiently adjust the air conditions between the mattress and the user.

[0005] According to embodiments of the present invention, the air-blowing sheet includes a cover, a diffusion layer, and a sheet member. The cover is waterproof and breathable. The diffusion layer is provided inside the cover. The diffusion layer is breathable. The sheet member is provided inside the cover. The sheet member is slippery. The diffusion layer is provided inside the sheet member.

[0006] According to embodiments of the present invention, it is possible to provide a ventilation sheet, a ventilation mechanism, a mattress with a ventilation sheet, and a bed that can efficiently adjust the air conditions between the mattress and the user.

[0007] Figure 1 is a schematic diagram of a mattress with a ventilation sheet according to the first embodiment. Figure 2 is a schematic cross-sectional view of the ventilation sheet according to the first embodiment. Figure 3 is a schematic plan view of the sheet member. Figure 4 is a schematic diagram showing a part of the mattress with a ventilation sheet according to the first embodiment. Figure 5 is a schematic diagram of a mattress with a ventilation sheet according to the first embodiment. Figure 6 is a schematic diagram of a mattress with a ventilation sheet according to the first embodiment. Figure 7 is a schematic diagram of the mattress with a ventilation sheet according to the first embodiment in use, installed on a bed. Figure 8 is a schematic diagram of a mattress with a ventilation sheet according to the first embodiment. Figure 9 is a schematic diagram illustrating the state of use of the mattress with a ventilation sheet according to the first embodiment, installed on a bed. Figure 10 is a diagram showing the absolute humidity in the first to third materials. Figure 11 is a schematic perspective view illustrating the ventilation mechanism and mattress with a ventilation sheet according to the second-first embodiment. Figure 12 is a schematic cross-sectional view illustrating a part of the ventilation mechanism according to the second-first embodiment. Figure 13 is a schematic plan view illustrating the ventilation mechanism according to the second-first embodiment. Figure 14 is a schematic diagram illustrating the usage state of the blower mechanism according to the second-first embodiment. Figure 15 is a schematic diagram illustrating the usage state of the blower mechanism according to the second-first embodiment. Figure 16 is a schematic plan view illustrating a part of the blower mechanism according to the second-first embodiment. Figure 17 is a schematic plan view of the blower mechanism according to the second-second embodiment. Figure 18 is a schematic plan view of a blower mechanism according to a modified example of the second-second embodiment. Figure 19 is a schematic plan view of the blower mechanism according to the second-third embodiment. Figure 20 is a schematic plan view of the blower mechanism according to the second-third embodiment. Figure 21 is a schematic plan view of the blower mechanism according to the second-fourth embodiment. Figure 22 is a schematic plan view of the blower mechanism according to the second-fourth embodiment. Figure 23 is a schematic plan view of the blower mechanism according to the second-fifth embodiment. Figure 24 is a schematic plan view of the blower mechanism according to the second-sixth embodiment. Figure 25 is a schematic plan view of the blower mechanism according to the second-seventh embodiment. Figure 26 is a schematic plan view of the blower mechanism according to the second-eighth embodiment.

[0008] (First Embodiment) A ventilation sheet, a mattress with a ventilation sheet, and a bed that can efficiently adjust the air conditions between the mattress and the user will be described with reference to Figures 1 to 10. (Ventilation Sheet) Figure 1 is a schematic diagram of a mattress with a ventilation sheet according to the embodiment. Figure 2 is a schematic cross-sectional view of the ventilation sheet according to the embodiment. Figure 2 is a cross-sectional view taken along line A1-A2 in Figure 1. As shown in Figure 1, the mattress with a ventilation sheet 1000 according to the embodiment includes a ventilation sheet 100. As shown in Figures 1 and 2, the ventilation sheet 100 according to the embodiment includes a cover 10, a diffusion layer 20, and a sheet member 30.

[0009] The cover 10 is waterproof and breathable.

[0010] The diffusion layer 20 is provided inside the cover 10. The diffusion layer 20 is breathable.

[0011] The sheet member 30 is provided inside the cover 10. The sheet member 30 has a slippery surface. The diffusion layer 20 is provided inside the sheet member 30. The slippery surface of the sheet member 30 improves sleeping comfort.

[0012] In Figures 1 and 2, the Y-axis is defined as one direction perpendicular to the X-axis. The Z-axis is defined as one direction perpendicular to both the X-axis and Y-axis. The user's feet are, for example, on the +Y side. The user's head is, for example, on the -Y side.

[0013] The diffusion layer 20 has excellent breathability. Even when a user lies on the mattress 1000 with the air-blowing sheet and the air-blowing sheet 100 is compressed, air can still move in and around that area. The air-blowing sheet 100 allows for efficient adjustment of the air conditions between the mattress 200 and the user.

[0014] Figure 3 is a schematic plan view of the sheet member. As shown in Figures 2 and 3, the sheet member 30 includes a first sheet surface 31, a second sheet surface 32, and a third sheet surface 33. The second sheet surface 32 is located between the first sheet surface 31 and the third sheet surface 33. The first sheet surface 31 corresponds to the user's head and back. The second sheet surface 32 corresponds to the user's buttocks. The third sheet surface 33 corresponds to the user's knees and feet.

[0015] As shown in Figure 3, on the first surface 31 and the third surface 33 of the sheet portion, the slipperiness along the second direction D2 intersecting the first direction D1 may be higher than the slipperiness along the first direction D1. On the second surface 32 of the sheet portion, the slipperiness along the first direction D1 may be higher than the slipperiness along the second direction D2. The sheet member 30 is, for example, polyester. The slipperiness can be varied, for example, by the weaving direction of the polyester fabric.

[0016] The first direction D1 can be, for example, the X-axis direction. The second direction D2 can be, for example, the Y-axis direction.

[0017] When a user lies on the mattress 1000 with a ventilation sheet, the second surface 32 of the sheet, which corresponds to the buttocks, bears the greatest weight of the user. Because the second surface 32 of the sheet has low slipperiness along the second direction D2, it can suppress the slippage of the cover 10 along the second direction D2. This slippage suppression characteristic is even more effective when used in a bed where the back bottom 41 rises, as shown in Figure 7, which will be described later.

[0018] As shown in Figure 2, the diffusion layer 20 includes a first portion 21, a second portion 22, and a third portion 23. The diffusion layer 20 includes a first diffusion surface 22a and a second diffusion surface 22b. The second portion 22 is located between the first portion 21 and the third portion 23.

[0019] The first surface 31 of the sheet portion is on top of the first portion 21. The second surface 32 of the sheet portion is on top of the second portion 22. The third surface 33 of the sheet portion is on top of the third portion 23. The second portion 22 has an area that is not covered by the sheet member 30 on the first diffusion surface 22a. The first diffusion surface 22a is between the second diffusion surface 22b and the cover 10. The second diffusion surface 22b is between the first diffusion surface 22a and the cover 10.

[0020] The permeability of the diffusion layer 20, based on JIS K 6400-7:2012 Method B, is 200 ml / cm³. ２ / sec or higher is acceptable. The permeability of the diffusion layer 20 should be 200 ml / cm². ２ If the value is / sec or higher, the breathability is good.

[0021] The 40% hardness of diffusion layer 20, based on JIS K 6400-2 A method, is 50 N / 314 cm². ２ Above, 300N / 314cm ２ The following applies: 50 N / 314 cm ２ As a result, the diffusion layer 20 is less likely to collapse, and air can easily permeate within the diffusion layer 20. The 40% hardness of the diffusion layer 20 is 300 N / 314 cm. ２ The following conditions are less likely to cause discomfort for the user.

[0022] The 50% compression residual strain of the diffusion layer 20, according to JIS K 6400-4, is 10% or less. When it is 10% or less, the deformation of the diffusion layer 20 is small. As a result, air can easily pass through the diffusion layer 20.

[0023] The cyclic compression residual strain of the diffusion layer 20, according to JIS K 6400-4, is 10% or less. When it is 10% or less, the deformation of the diffusion layer 20 is small. As a result, air can easily permeate into the diffusion layer 20.

[0024] In the air-blowing sheet 100, it is preferable that the diffusion layer 20 has values ​​within the above ranges for air permeability, 40% hardness, 50% compression set, and repeated compression set. This ensures that the diffusion layer 20 has excellent air permeability. Even when a user lies on the mattress 1000 with the air-blowing sheet and the air-blowing sheet 100 is compressed, air can still move in and around that area. The air-blowing sheet 100 allows for efficient adjustment of the air conditions between the mattress 200 and the user.

[0025] The water resistance of cover 10 according to JIS L 1092 Method B is sufficient if it is 4 kPa or higher. The moisture permeability of cover 10 according to JIS L 1099 Method A1 is 55 g / cm². ２ - An hour or longer is fine.

[0026] The ventilation sheet 100 and the ventilation sheet mattress 1000 described later according to this embodiment are used, for example, attached to medical and nursing care beds. The ventilation sheet mattress 1000 is provided with a mattress 200. The ventilation sheet 100 is, for example, placed on top of the mattress 200. The user lies on the mattress 200. The ventilation sheet 100 and the ventilation sheet mattress 1000 are used not only in medical institutions such as hospitals, but also in nursing care facilities and the user's home. The user of the mattress 200 is, for example, a patient or a person requiring care.

[0027] (Mattress with air-blowing sheet) As shown in Figure 1, the mattress with air-blowing sheet 1000 includes the air-blowing sheet 100 described above and the mattress 200.

[0028] The cover 10 may be placed on top of the mattress 200. On the other hand, the mattress 200 may be placed inside the cover 10. The diffusion layer 20 may be placed on top of the mattress 200.

[0029] The mattress with a ventilation sheet 1000 may further include a ventilation device 300 that blows air into the cover 10. The ventilation device 300 is, for example, a blower.

[0030] The cover 10 includes a first region 11, a second region 12, and a third region 13. The first region 11 is above the first portion 21. The second region 12 is above the second portion 22. The third region 13 is above the third portion 23. The cover 10 includes an air outlet 16, an air supply tube 17, and an exhaust port 18. Air from the blower 300 is blown into the cover 10 via the air supply tube 17 and the air outlet 16. The air outlet 16 of the blower seat 100 from the blower 300 may be located on the side of the third region 13. The air outlet 16 of the blower seat 100 from the blower 300 may be located on the side of the user's feet. An exhaust port 18 may be provided so that the blown air reaches the entire blower seat 100. As for the installation location of the exhaust port 18, for example, if the air outlet 16 is provided on the foot side, the exhaust port 18 may be provided on the head side opposite the foot side. This makes it easier for the blown air to spread throughout the entire ventilation seat 100 and to adjust the temperature and humidity of the user's back. The shape, placement, and number of exhaust ports 18 are not limited to those shown in Figure 1. For example, the shape of the exhaust port 18 may be circular or slit-shaped. In addition, exhaust port covers or flaps may be provided on the exhaust port 18 to prevent foreign objects from entering the cover 10.

[0031] The mattress with a ventilation sheet 1000 may further include a temperature and humidity information measuring unit 400 and a control unit 500. The temperature and humidity information measuring unit 400 may be provided between the mattress 200 and the ventilation sheet 100, or between the ventilation sheet 100 and the user. The temperature and humidity information measuring unit 400 may be provided in a position where the mattress 200 and the ventilation sheet 100 do not overlap, as shown in Figure 1. The mattress with a ventilation sheet 1000 may include a flow path 401 connecting the temperature and humidity information measuring unit 400 and the cover 10. Air flows through the flow path 401 between the temperature and humidity information measuring unit 400 and the cover 10. The temperature and humidity information measuring unit 400 collects air inside the cover 10 via the flow path 401 and measures the temperature and humidity.

[0032] FIG. 4 is a schematic view showing a part of the mattress with a blowing sheet according to the embodiment. In FIG. 4, an example of the temperature and humidity information measuring unit 400 is shown. When provided between the blowing sheet 100 and the user, the temperature and humidity information measuring unit 400 may include a sampling unit 402, a first flow path 403a, a temperature and humidity sensor 404, and a second flow path 403b, as shown in FIG. 4. The first flow path 403a and the second flow path 403b are connected to the sampling unit 402 and are made of a flexible material. The temperature and humidity sensor 404 is connected to the first flow path 403a and measures the temperature and humidity of the air sampled by the sampling unit 402. The second flow path 403b is connected to the temperature and humidity sensor 404 and is made of a flexible material. In order to send the air measured by the temperature and humidity sensor 404 to the sampling unit 402, it is preferable to provide a circulation device between the temperature and humidity sensor 404 and the second flow path 403b. The temperature and humidity information measuring unit 400 may include a chamber 405. The chamber 405 stores the air sent to the temperature and humidity sensor 404. The temperature and humidity sensor 404 is provided inside the chamber 405. The hardness of the sampling unit 402 may be, for example, 75 or less and 5 or more on the durometer A scale. The thickness of the sampling unit 402 may be 1 mm or more and 5 mm or less. The size of the sampling unit 402 is preferably smaller than the size of the user's body for the purpose of sampling the gas (air) between the mattress 200 and the person (user) lying on the mattress 200. Preferably, the lengths in the first direction D1 and the second direction D2 are 15 cm or less, and more preferably, the lengths in the first direction D1 and the second direction D2 are 10 cm or less. The smaller the size, the better, but the lengths in the first direction D1 and the second direction D2 may be 1 cm or more.

[0033] ​​​Figure 5 is a schematic diagram of a mattress with a ventilation sheet according to the embodiment. Figure 6 is a schematic diagram of a mattress with a ventilation sheet according to the embodiment. Figure 6 is a side view taken from the X-axis direction in Figure 5. The ventilation sheet 100 described above included a sheet member 30, but the ventilation sheet 100 may also not include the sheet member 30. That is, as shown in Figure 5, the ventilation sheet 100 includes a waterproof and breathable cover 10 and a breathable diffusion layer 20 provided inside the cover 10.

[0035] Furthermore, as shown in Figures 5 and 6, the mattress with a ventilation sheet 1000 includes a ventilation sheet 100, a breathable diffusion layer 20, a mattress 200, an air outlet 16, and an exhaust port 18. The ventilation sheet 100 includes a waterproof and breathable cover 10. The diffusion layer 20 is provided between the cover 10 and the mattress 200. The air outlet 16 is provided in the cover 10. There are no particular restrictions on the shape, placement, number, or size of the air outlet 16. For example, the shape of the air outlet 16 may be circular or slit-shaped. A horizontally elongated slit shape is preferred for the air outlet 16. The length of the air outlet 16 in the width direction in the first direction D1 may be, for example, 0.1 to 0.9 times the length of the cover 10 in the width direction (first direction D1), and the air outlet 16 is wide in the first direction D1.

[0036] The cover 10 includes a first engaging portion 51 provided along the longitudinal direction (second direction D2) and the lateral direction (first direction D1) of the cover 10. The cover 10 includes a first non-engaging portion 53 provided along the third direction D3 from the cover 10 to the mattress 200. The mattress 200 includes a second engaging portion 52 provided along the longitudinal direction (second direction D2) and the lateral direction (first direction D1) of the mattress 200. The mattress 200 includes a second non-engaging portion 54 provided along the third direction D3. The first engaging portion 51 and the second engaging portion 52 engage with each other. The exhaust port 18 is composed of the first non-engaging portion 53 and the second non-engaging portion 54. The first engaging portion 51 and the second engaging portion 52 are sewn or fasteners. The shape and size of the exhaust port 18 are not particularly limited as long as the blown air reaches the entire blowing sheet 100. The first engaging portion 51 may be provided along a part of the cover 10 in the third direction D3. The second engaging portion 52 may be provided along a part of the mattress 200 in the third direction D3.

[0037] FIG. 7 is a schematic view of a usage state in which the air-blowing sheet-equipped mattress according to the embodiment is installed on a bed. The bed 2000 includes a bottom 40. The bottom 40 includes a back bottom 41, a waist bottom 42, a knee bottom 43, and a foot bottom 44. The back bottom 41 shown in FIG. 7 is raised. The mattress 200 is provided on the bottom 40. The air-blowing sheet 100 is provided on the mattress 200. Thus, even when the back bottom 41 is raised and the space between the back bottom 41 and the waist bottom 42 is folded and wrinkled, the state of the air between the mattress 200 and the user can be efficiently adjusted. In the bottom 40, the bottom 40 can also raise the knee bottom 43 and the foot bottom 44.

[0038] FIG. 8 is a schematic view of the air-blowing sheet-equipped mattress according to the embodiment. The mattress 200 may be, for example, an air mattress or a urethane mattress. The air mattress includes a plurality of cells. Air is blown into the plurality of cells. When the mattress 200 is an air mattress, the air blower 300 may blow air to the air-blowing sheet 100 and the mattress 200. The air supply sources of the air-blowing sheet 100 and the mattress 200 may be different or the same.

[0039] FIG. 9 is a schematic diagram illustrating a usage state in which a mattress with a blower sheet according to an embodiment is installed on a bed. As shown in FIG. 9, the mattress 1000 with a blower sheet is used on the bed 2000. The bed 2000 includes the mattress 1000 with a blower sheet, a control unit 600, and a housing 700. The control unit 600 is provided on the foot side of the bed 2000. The control unit 600 is provided inside the housing 700. The control unit 600 controls the air blown to the air mattress. A case adjacent to the control unit 600 may be provided inside the housing 700. The case is arranged beside the control unit 600. The above-described blower device 300 may be provided above the control unit 600 inside the housing 700. The blower device 300 may be provided in place of the case. When the blower device 300 is provided in place of the case, the blower device 300 can protect the control unit 600.

[0040] Hereinafter, the blower sheet and the mattress with a blower sheet according to the embodiment will be described more specifically. However, the blower sheet and the mattress with a blower sheet according to the embodiment are not limited to the following.

[0041] (First Document) In the first document, a cover having waterproof and moisture-permeable properties, a diffusion layer having air permeability inside the cover, and a sheet member having lubricity and provided inside the cover are provided to prepare a blower sheet. An air mattress is prepared, and the blower sheet is provided on the air mattress. A blower device for blowing air inside the cover is provided. In this way, the mattress with a blower sheet of the first document is obtained.

[0042] Note that the air permeability of the diffusion layer of the mattress with a blower sheet of the first document is 377 ml / cm ２ / sec when measured by the JIS K 6400-7:2012 B method. The 40% hardness of the diffusion layer is 100 ± 20 N / 314 cm ２The 50% compressive residual strain of the diffusion layer is 10% or less when measured according to JIS K 6400-4. The repeated compressive residual strain of the diffusion layer is 5% or less when measured according to JIS K 6400-4. The water resistance of the cover is 19.6 kPa or more when measured according to JIS L 1092 Method B, and the moisture permeability of the cover is 90 g / cm³ when measured according to JIS L 1099 Method A1. ２ It is more than an hour.

[0043] Air is blown from a blower into the cover of the mattress with a ventilation sheet in Document 1, and the absolute humidity (g / m³) is measured for 100 minutes. ３ The sum of absolute humidity is measured. The sum of absolute humidity is the sum of humidity values ​​measured every minute for 100 minutes (100 times in total) in an environment with a room temperature of 23±3℃ and a humidity of 65±5%. The measurement is performed by the temperature and humidity information measurement unit. The measurement is performed using a temperature and humidity meter (temperature and humidity meter: "TRH-7H", temperature and humidity sensor probe: "THP-728", both manufactured by Shin-ei Technology Co., Ltd.). The measurement locations for absolute humidity are the back P1 and buttocks P2.

[0044] (Second Document) In the second document, a diffusion layer is not provided, a non-permeable cover is provided, and a ventilation sheet is prepared. The cover is waterproof. Other configurations and measurement conditions are the same as in the first document. In this way, the mattress with ventilation sheet of the second document is obtained.

[0045] (Document 3) In Document 3, a non-permeable cover, a diffusion layer inside the cover, and a sheet member are provided to prepare a ventilation sheet. The cover is waterproof. Other configurations and measurement conditions are the same as in Document 1. In this way, the mattress with ventilation sheet of Document 3 is obtained.

[0046] Figure 10 shows the absolute humidity in the first to third samples. Figure 10 shows the absolute humidity (g / m³) over 100 minutes after considering environmental factors. ３ This shows the sum of (g / m³). In Figure 10, P1 measures the back. P2 measures the buttocks. As shown in Figure 10, in the first sample mattress with a ventilation sheet (ventilation sheet), the absolute humidity (g / m³) ３ The total amount is 500.0 g / m ３The following applies: The mattress with a ventilation sheet (ventilation sheet) in Document 1 allows for efficient adjustment of the air conditions between the mattress and the user.

[0047] The sum of the absolute humidity in Documents 2 and 3 is higher than the sum of the absolute humidity in Document 1. In Documents 2 and 3, condensation occurs between the user and the cover. The mattresses with ventilation sheets (ventilation sheets) in Documents 2 and 3 cannot efficiently regulate the air quality between the mattress and the user.

[0048] The ventilation sheet, mattress with ventilation sheet, and bed according to the embodiment are preferably used for the prevention of pressure ulcers, and are preferably used in a mattress with a ventilation sheet used for microclimate management, which is said to be one of the causes of pressure ulcers.

[0049] Next, a blower mechanism, a mattress with a blower sheet, and a bed that can improve performance will be described with reference to Figures 11 to 26. In the second-first to second-eight embodiments, for the sake of explanation, each device and component is described with a different reference numeral even if it has the same shape and configuration as the devices and components described in the first embodiment.

[0050] (Second-1 Embodiment) Figure 11 is a schematic perspective view illustrating a blower mechanism and a mattress with a blower sheet according to the Second-1 embodiment. Figure 12 is a schematic cross-sectional view illustrating a part of the blower mechanism according to the Second-1 embodiment. Figure 13 is a schematic plan view illustrating the blower mechanism according to the Second-1 embodiment. As shown in Figure 11, the blower mechanism 3101 according to the embodiment includes a blower sheet 3010S and a blower device 3040. The mattress with a blower sheet 3000 includes the blower mechanism 3101 and a mattress 3200. The blower sheet 3010S is placed on the mattress 3200. The user of the mattress with a blower sheet 3000 can lie on the blower sheet 3010S. The blower sheet 3010S includes a cover 3010 and a diffusion layer 3020. The diffusion layer 3020 is provided inside the cover 3010. The diffusion layer 3020 provides high breathability.

[0051] The air-blowing sheet mattress 3000 corresponds to the air-blowing sheet mattress 1000 according to the first embodiment. The air-blowing sheet 3010S corresponds to the air-blowing sheet 100 according to the first embodiment. That is, the air-blowing sheet mattress 3000 and the air-blowing sheet 3010S may encompass the above descriptions made for the air-blowing sheet mattress 1000 and the air-blowing sheet 100, respectively. Furthermore, the air-blowing sheet mattress 1000 and the air-blowing sheet 100 may also encompass the following descriptions made for the air-blowing sheet mattress 3000 and the air-blowing sheet 3010S, respectively.

[0052] The cover 3010 includes an air outlet 3016. The cover 3010 may be waterproof and breathable. The blower 3040 blows air into the blower sheet 3010S (inside the cover 3010) via the air outlet 3016. For example, the blower mechanism 3101 includes a blower tube 3017. The blower tube 3017 is connected to the cover 3010 and the blower 3040. Air is supplied to the inside of the cover 3010 via the blower tube 3017. The cover 3010 includes an exhaust port 3018. The exhaust port 3018 may be provided on the back side 3014, which will be described later. The air blown into the inside of the cover 3010 is exhausted from the exhaust port 3018. Since the exhaust port 3018 is located on the back side 3014, the air blown from the air outlet 3016 is easily blown to the back side 3014. The same applies to the embodiments described later. The exhaust port 3018 is not limited to the shape, location, or number shown in Figure 11. For example, the shape of the exhaust port 3018 may be circular or slit-shaped. In addition, an exhaust port cover or flap may be provided on the exhaust port 3018 to prevent foreign matter from entering the cover 3010.

[0053] The cover 3010 includes a foot portion 3011, a knee portion 3012, a waist portion 3013, and a back portion 3014. The foot portion 3011, knee portion 3012, waist portion 3013, and back portion 3014 are arranged in that order. The foot portion 3011 and knee portion 3012 correspond to the third region 13 according to the first embodiment. The waist portion 3013 corresponds to the second region 12 according to the first embodiment. The back portion 3014 corresponds to the first region 11 according to the first embodiment.

[0054] In one example, the posture (angle) of the mattress with a ventilation sheet 3000 (mattress 3200) can be changed. For example, the mattress with a ventilation sheet 3000 can be raised or positioned as a chair. Changing the posture changes the angles between the feet 3011, knees 3012, waist 3013, and back 3014.

[0055] Changes in posture may cause wrinkles to form in the ventilation sheet 3010S. In areas where wrinkles form, ventilation becomes locally poor. For example, if an air outlet 3016 is provided in the foot area 3011, and wrinkles form between the foot area 3011 and the knee area 3012, the air introduced from the air outlet 3016 will have difficulty moving to the knee area 3012. As a result, it will be difficult to achieve good temperature and humidity conditions in the area above the knee area 3012.

[0056] In the embodiment, the air outlet 3016 is provided in a location where the effect of wrinkles is suppressed. For example, the cover 3010 includes a foot portion 3011 and an upper portion 3015. The upper portion 3015 is located more towards the head than the foot portion 3011. The upper portion 3015 includes, for example, a knee portion 3012, a waist portion 3013, and a back portion 3014.

[0057] In this embodiment, the air vent 3016 is provided on the upper part 3015. The air vent 3016 is provided on at least one of the knee portion 3012, waist portion 3013, and back portion 3014. The air vent 3016 does not have to be provided on the foot portion 3011, but preferably, in addition to the air vent 3016 provided on at least one of the knee portion 3012, waist portion 3013, and back portion 3014, there is also an air vent 3016 on the foot portion 3011. This effectively suppresses the effects of wrinkles.

[0058] Figure 14 is a schematic diagram illustrating the usage state of the blower mechanism according to the second-first embodiment. Figure 15 is a schematic diagram illustrating the usage state of the blower mechanism according to the second-first embodiment. As shown in Figure 14, the blower mechanism 3101 is used in a bed 4000. The bed 4000 corresponds to the bed 2000 according to the first embodiment. That is, the bed 4000 may include the above description made for the bed 2000. Also, the bed 2000 may include the following description made for the bed 4000. Figure 14 illustrates the flat position of the mattress 3000 with a blower sheet. Figure 15 illustrates the chair position of the mattress 3000 with a blower sheet. In the chair position, for example, the angles of the foot bottom 3051, knee bottom 3052, waist bottom 3053, and back bottom 3054 are changed from the flat state. The mattress 3200 and the ventilation sheet 3010S, which are placed on top of these bottoms, change in accordance with the changes in the shape of these bottoms.

[0059] In the chair position, wrinkles form at the boundary B1 between the foot portion 3011 and the knee portion 3012, the boundary B2 between the knee portion 3012 and the waist portion 3013, and the boundary B3 between the waist portion 3013 and the back portion 3014. In particular, there is a large bend at the boundary B1 between the foot portion 3011 and the upper portion 3015. As a result, large wrinkles form at the boundary B1 between the foot portion 3011 and the upper portion 3015. The formation of large wrinkles makes it difficult for air to move between the foot portion 3011 and the upper portion 3015 within the ventilation sheet 3010S. Depending on the bed 4000, the foot portion 3011 expands and contracts, which makes it easy for wrinkles to form in the foot portion 3011 of the ventilation sheet mattress 3000, making it difficult for air to move.

[0060] In this embodiment, the air outlet 3016 is provided on the upper part 3015. This allows air to move easily between the foot part 3011 and the upper part 3015.

[0061] In this embodiment, good ventilation can be maintained in the ventilation sheet 3010S. For example, good ventilation can be ensured even in chair positions with large angle changes. According to this embodiment, it is possible to provide a ventilation mechanism 3101 and a mattress 3000 with a ventilation sheet that can improve the characteristics.

[0062] As already explained, the diffusion layer 3020 is provided inside the cover 3010. The diffusion layer 3020 allows the temperature and humidity inside the air-blowing sheet 3010S to be made uniform, ensuring better ventilation.

[0063] In the example shown in Figure 13, the air outlet 3016 is located in the lumbar region 3013. The lumbar region 3013 is a part where the user's weight is most likely to be applied, and where the mattress 3200 sinks more significantly due to the skeletal shape, etc. By providing the air outlet 3016 in the lumbar region 3013, air can be supplied to the ventilation sheet 3010S more efficiently.

[0064] As will be described later, the air vent 3016 may be provided in the knee portion 3012. The air vent 3016 may also be provided in the back portion 3014.

[0065] As shown in Figures 11 and 13, the blower 3040 may be provided on the side of the foot portion 3011. The blower 3040 may be, for example, a blower.

[0066] In this embodiment, the permeability of the diffusion layer 3020, based on JIS K 6400-7:2012 Method B, is 200 ml / cm³. ２ / sec or higher is acceptable. The permeability of the diffusion layer 3020 should be 200 ml / cm². ２ In the case of / sec, it has excellent breathability.

[0067] The 40% hardness of diffusion layer 3020, based on JIS K 6400-2 A method, is 50 N / 314 cm. ２ Above, 300N / 314cm ２ The following is acceptable: 50N / 314cm ２ As a result, the diffusion layer 3020 is less likely to collapse, and air can easily permeate the diffusion layer 3020. The 40% hardness of the diffusion layer 3020 is 300 N / 314 cm. ２ The following conditions are less likely to cause discomfort for the user.

[0068] The 50% compression residual strain of the diffusion layer 3020, according to JIS K 6400-4, is 10% or less. When it is 10% or less, the deformation of the diffusion layer 3020 is small. As a result, air can easily permeate into the diffusion layer 3020.

[0069] The cyclic compression residual strain of the diffusion layer 3020, according to JIS K 6400-4, is 10% or less. When it is 10% or less, the deformation of the diffusion layer 3020 is small. As a result, air can easily permeate into the diffusion layer 3020.

[0070] In the blower mechanism 3101, the diffusion layer 3020 may have values ​​within the above ranges for air permeability, 40% hardness, 50% compression residual strain, and repeated compression residual strain. This ensures that the diffusion layer 3020 has excellent air permeability. Even when a user lies on the mattress 3000 with the blower sheet and the cover 3010 is compressed, air can still move in and around that area. The blower mechanism 3101 makes it possible to improve the characteristics.

[0071] The water resistance of cover 3010 according to JIS L 1092 Method B is sufficient if it is 4 kPa or higher. The moisture permeability of cover 3010 according to JIS L 1099 Method A1 is 55 g / cm². ２ - An hour or longer is fine.

[0072] In Figures 11 and 12, the direction from the back portion 3014 to the foot portion 3011 is defined as the Y-axis direction. One direction perpendicular to the Y-axis direction is defined as the X-axis direction. The direction perpendicular to both the X-axis and Y-axis directions is defined as the Z-axis direction. The direction from the mattress 3200 to the air-blowing sheet 3010S is, for example, along the Z-axis direction. The left-right direction of the user corresponds, for example, to the X-axis direction.

[0073] Figure 16 is a schematic plan view illustrating a part of the blower mechanism according to the second-first embodiment. As shown in Figures 12 and 16, the sheet member 3030 includes a first sheet surface 3031, a second sheet surface 3032, and a third sheet surface 3033. The second sheet surface 3032 is located between the first sheet surface 3031 and the third sheet surface 3033. The first sheet surface 3031 corresponds to the user's head and back 3014. The second sheet surface 3032 corresponds to the user's waist 3013. The third sheet surface 3033 corresponds to the user's knees 3012 and feet 3011.

[0074] The sheet member 3030 has lubricity. The diffusion layer 3020 is provided within the sheet member 3030. The lubricity of the sheet member 3030 improves sleeping comfort. On the first surface 3031 and the third surface 3033 of the sheet, the lubricity along the second direction D2 intersecting the first direction D1 may be higher than the lubricity along the first direction D1. On the second surface 3032 of the sheet, the lubricity along the first direction D1 may be higher than the lubricity along the second direction D2. The sheet member 3030 is, for example, polyester. The lubricity can be varied, for example, by the weaving direction of the polyester fabric.

[0075] The first direction D1 can be, for example, the X-axis direction. The second direction D2 can be, for example, the Y-axis direction.

[0076] When a user lies down on the mattress 3000 with a ventilation sheet, the second surface 3032 of the sheet, which corresponds to the lumbar region 3013, is a part where the user's weight is likely to be applied, and the sinking into the mattress 3200 is greater due to the skeletal shape, etc. Since the second surface 3032 of the sheet has low slipperiness along the second direction D2, it can suppress the slippage of the cover 3010 along the second direction D2.

[0077] As shown in Figure 12, the diffusion layer 3020 includes a first portion 3021, a second portion 3022, and a third portion 3023. The diffusion layer 3020 also includes a first diffusion surface 3022a and a second diffusion surface 3022b. The second portion 3022 is located between the first portion 3021 and the third portion 3023.

[0078] The first surface 3031 of the sheet portion is on top of the first portion 3021. The second surface 3032 of the sheet portion is on top of the second portion 3022. The third surface 3033 of the sheet portion is on top of the third portion 3023. The second portion 3022 has an area on the first diffusion surface 3022a that is not covered by the sheet member 3030. The first diffusion surface 3022a is between the second diffusion surface 3022b and the cover 3010. The second diffusion surface 3022b is between the first diffusion surface 3022a and the cover 3010. The coefficient of friction of the first diffusion surface 3022a is higher than the coefficient of friction of the sheet member 3030. The presence of the first diffusion surface 3022a allows the sheet member 3030 to suppress displacement in the first direction D1 and the second direction D2 within the cover 3010, even in the chair position.

[0079] The blower mechanism 3101 and the blower sheet mattress 3000 described later according to this embodiment are used, for example, attached to medical and nursing care blower sheet mattresses. The blower sheet mattress 3000 is provided with a mattress 3200. The blower mechanism 3101 is installed, for example, on top of the mattress 3200. The user lies on top of the blower mechanism 3101. The blower mechanism 3101 and the blower sheet mattress 3000 are used not only in medical institutions such as hospitals, but also in nursing care facilities and the user's home. The user of the mattress 3200 is, for example, a patient or a person requiring care.

[0080] (Second-2 Embodiment) Figure 17 is a schematic plan view of the blower mechanism according to the second-2 embodiment. As shown in Figure 17, in the blower mechanism 3102, the air outlet 3016 is provided on the back portion 3014. This makes it easier for air to move from the back portion 3014 to the waist portion 3013. This improves the characteristics. The configuration of the blower mechanism 3102, apart from this, may be the same as that of the blower mechanism 3101.

[0081] Figure 18 is a schematic plan view of a modified version of the second-second embodiment of the blower mechanism. As shown in Figure 18, in the blower mechanism 3102, the air outlet 3016 may include a first air outlet 3016a and a second air outlet 3016b. The second air outlet 3016b is provided in the back portion 3014. The first air outlet 3016a is provided in the foot portion 3011. The second air outlet 3016b may also be provided in the waist portion 3013. From the viewpoint of blower efficiency, it is preferable that the first air outlet is provided in the short-side direction of the foot portion and the exhaust port is provided on the opposite head side. In this case, it is preferable that the shape of the first air outlet and / or exhaust port is wide in the width direction (first direction D1).

[0082] The length of the first air outlet 3016a in the first direction D1 is not particularly limited, but it is preferable that it be large enough to allow air to be supplied even if the user's feet rest on part of the first air outlet 3016a while they are in bed. Furthermore, it is preferable that the first air outlet 3016a be positioned in a location that the user's feet cannot reach while they are in bed, and it is preferable that the first air outlet 3016a be divided into two or more, so that the air outlet 3016 can be secured so that air can be supplied even if the user's feet rest on one of the two first air outlets 3016a. From the above viewpoint, the length of the first air outlet 3016a in the width direction in the first direction D1 may be 0.1 to 0.9 times the length of the cover 3010 in the width direction (first direction D1). In other words, the first air outlet 3016a is wide in the first direction D1.

[0083] The first air outlet 3016a may be provided on the back side 3014 (the user's head side), but in this case, the exhaust port 3018 is provided on the foot side 3011 (the user's feet side).

[0084] The air outlets 3016 may be provided in the foot area 3011, knee area 3012, and back area 3014, other than the waist area 3013. In other words, air does not need to be blown to the waist area 3013.

[0085] (Second-Third Embodiment) Figures 19 and 20 are schematic plan views of the blower mechanism according to the second-third embodiment. As shown in Figure 19, in the blower mechanism 3103, the air outlet 3016 includes a first air outlet 3016a and a second air outlet 3016b. The upper part 3015 includes a knee part 3012, a waist part 3013 and a back part 3014. The first air outlet 3016a and the second air outlet 3016b satisfy either the first or second condition below.

[0086] In the first condition, the first air outlet 3016a is provided in the waist area 3013. The second air outlet 3016b is provided in either the knee area 3012 or the back area 3014. In Figure 19, the second air outlet 3016b is provided in the back area 3014. This makes it easier for air to move from the waist area 3013 to the back area 3014. Even if wrinkles form at the boundary B3 between the waist area 3013 and the back area 3014, air is still supplied to both the waist area 3013 and the back area 3014. This allows for improved performance.

[0087] As shown in Figure 20, in the blower mechanism 3103, under the second condition, the first air outlet 3016a is provided at the knee portion 3012, and the second air outlet 3016b is provided at the back portion 3014. This makes it easier for air to move from the knee portion 3012 to the waist portion 3013. Even if wrinkles form at the boundary B3 between the waist portion 3013 and the back portion 3014, and at the boundary B2 between the knee portion 3012 and the waist portion 3013, air is still blown to the waist portion 3013 and the back portion 3014. This allows for improved performance. The configuration of the blower mechanism 3103, apart from this, may be the same as that of the blower mechanism 3101.

[0088] Figures 21 and 22 are schematic plan views of the blower mechanism according to the second-fourth embodiment. As shown in Figure 21, in the blower mechanism 3104, the air outlet 3016 includes a first other air outlet 3016e and a second other air outlet 3016f. The first other air outlet 3016e and the second other air outlet 3016f satisfy either the first or second condition below.

[0089] In the first condition, the waist portion 3013 is located between the first air outlet 3016a and the first other air outlet 3016e. One of the knee portion 3012 and the back portion 3014 is located between the second air outlet 3016b and the second other air outlet 3016f. This makes it easier for air to move from the waist portion 3013 to the back portion 3014 at both ends of the cover 3010 in the first direction D1. Even if wrinkles form at the boundary B3 between the waist portion 3013 and the back portion 3014, air is still supplied to the waist portion 3013 and the back portion 3014. This allows for improved performance.

[0090] As shown in Figure 22, in the blowing mechanism 3104, under the second condition, the knee portion 3012 is located between the first air outlet 3016a and the first other air outlet 3016e. The back portion 3014 is located between the second air outlet 3016b and the second other air outlet 3016f. This makes it easier for air to move from the waist portion 3013 to the back portion 3014. Air moves easily from the knee portion 3012 to the waist portion 3013 at both ends of the cover 3010 in the first direction D1. Even if wrinkles form at the boundary B3 between the waist portion 3013 and the back portion 3014, and at the boundary B2 between the knee portion 3012 and the waist portion 3013, air is still blown to the knee portion 3012, waist portion 3013, and back portion 3014. This makes it possible to improve the characteristics. The configuration of the blower mechanism 3104, excluding this, may be the same as that of the blower mechanism 3103.

[0091] Figure 23 is a schematic plan view of the blower mechanism according to the second-fifth embodiment. As shown in Figure 23, in the blower mechanism 3105, the air outlet 3016 includes a first air outlet 3016a, a second air outlet 3016b, and a third air outlet 3016c.

[0092] The first air outlet 3016a is provided in the knee portion 3012 of the cover 3010. The second air outlet 3016b is provided in the waist portion 3013 of the cover 3010. The third air outlet 3016c is provided in the back portion 3014 of the cover 3010. This makes it easier for air to move, in particular, from the knee portion 3012 to the waist portion 3013. Air also moves more easily from the waist portion 3013 to the back portion 3014. Even if wrinkles form at the boundary B3 between the waist portion 3013 and the back portion 3014, and at the boundary B2 between the knee portion 3012 and the waist portion 3013, air is still blown to the waist portion 3013 and the back portion 3014. This improves performance. The configuration of the other parts of the air blowing mechanism 3105 may be the same as that of the air blowing mechanism 3101.

[0093] Figure 24 is a schematic plan view of the ventilation mechanism according to the second to sixth embodiment. As shown in Figure 24, in the ventilation mechanism 3106, the ventilation port 3016 includes a first other ventilation port 3016e, a second other ventilation port 3016f, and a third other ventilation port 3016g. The knee portion 3012 is provided between the first ventilation port 3016a and the first other ventilation port 3016e. The waist portion 3013 is provided between the second ventilation port 3016b and the second other ventilation port 3016f. The back portion 3014 is provided between the third ventilation port 3016c and the third other ventilation port 3016g.

[0094] The first additional air outlet 3016e is provided in the knee portion 3012. The second additional air outlet 3016f is provided in the waist portion 3013. The third additional air outlet 3016g is provided in the back portion 3014. This makes it easier for air to move from the knee portion 3012 to the waist portion 3013. Air also moves more easily from the waist portion 3013 to the back portion 3014 at both ends of the cover 3010 in the first direction D1. Even if wrinkles form at the boundary B3 between the waist portion 3013 and the back portion 3014, and at the boundary B2 between the knee portion 3012 and the waist portion 3013, air is still blown to the waist portion 3013 and the back portion 3014. This improves performance. The configuration of the other air blowing mechanism 3106 may be the same as that of the air blowing mechanism 3105.

[0095] Figure 25 is a schematic plan view of the blower mechanism according to the second to seventh embodiment. As shown in Figure 25, in the blower mechanism 3107, the air outlet 3016 includes a first air outlet 3016a, a second air outlet 3016b, a third air outlet 3016c, and a fourth air outlet 3016d.

[0096] The first air outlet 3016a is provided in the foot portion 3011 of the cover 3010. The second air outlet 3016b is provided in the knee portion 3012 of the cover 3010. The third air outlet 3016c is provided in the waist portion 3013 of the cover 3010. The fourth air outlet 3016d is provided in the back portion 3014 of the cover 3010. As a result, air is blown to the foot portion 3011, the knee portion 3012, the waist portion 3013, and the back portion 3014. This makes it possible to improve the characteristics. The configuration of the other parts of the air blowing mechanism 3107 may be the same as the configuration of the air blowing mechanism 3101.

[0097] Figure 26 is a schematic plan view of the blower mechanism according to the second-eighth embodiment. As shown in Figure 26, in the blower mechanism 3108, the air outlet 3016 includes a first other air outlet 3016e, a second other air outlet 3016f, a third other air outlet 3016g, and a fourth other air outlet 3016h.

[0098] The first additional air outlet 3016e is provided in the foot portion 3011. The second additional air outlet 3016f is provided in the knee portion 3012. The third additional air outlet 3016g is provided in the waist portion 3013. The fourth additional air outlet 3016h is provided in the back portion 3014. As a result, air is blown to the foot portion 3011, the knee portion 3012, the waist portion 3013, and the back portion 3014. This makes it possible to improve the performance. The configuration of the other air blowing mechanism 3108 may be the same as the configuration of the air blowing mechanism 3107.

[0099] (Second-Ninth Embodiment) The second-ninth embodiment relates to a mattress 3000 with a ventilation sheet. The mattress 3000 with a ventilation sheet includes a ventilation mechanism (for example, a ventilation mechanism 3101) according to the second-first to second-eight embodiments and a mattress 3200.

[0100] The cover 3010 may be placed on top of the mattress 3200. On the other hand, the mattress 3200 may be placed inside the cover 3010. The diffusion layer 3020 may be placed on top of the mattress 3200.

[0101] The blower 3040 may blow air onto the mattress 3200. The mattress 3200 may be, for example, an air mattress or a urethane mattress. An air mattress includes multiple cells. Air is blown into the multiple cells. The blower 3040 may blow air onto the cover 3010 and the mattress 3200. The air sources for the cover 3010 and the mattress 3200 may be separate or the same.

[0102] The mattress with a ventilation sheet 3000 may further include a temperature and humidity information measuring unit 3400 and a control unit 3500. The temperature and humidity information measuring unit 3400 may be provided between the mattress 3200 and the ventilation sheet 3010S. The temperature and humidity information measuring unit 3400 may be provided in a position where the mattress 3200 and the ventilation sheet 3010S do not overlap, as shown in Figure 11. The mattress with a ventilation sheet 3000 may include a flow path 3401 connecting the temperature and humidity information measuring unit 3400 and the cover 3010. Air flows through the flow path 3401 between the temperature and humidity information measuring unit 3400 and the cover 3010. The temperature and humidity information measuring unit 3400 collects air inside the cover 3010 via the flow path 3401 and measures the temperature and humidity.

[0103] The control unit 3500 receives information from the temperature and humidity information measuring unit 3400 and adjusts the airflow rate of the blower 3040. When the temperature and humidity are high, the control unit 3500 increases the airflow rate of the blower 3040, for example. On the other hand, when the temperature and humidity are low, the control unit 3500 decreases the airflow rate of the blower 3040, for example.

[0104] The mattress with a ventilation sheet 3000 may include an airflow sensor. The airflow sensor adjusts the amount of air (a small amount and no air) to the first to fourth air outlets 3016a to 3016d and the first to fourth other air outlets 3016e to 3016h. The ventilation tube 3017 may include a switching valve. The switching valve switches the ventilation tube 3017 leading to the first to fourth air outlets 3016a to 3016d and the first to fourth other air outlets 3016e to 3016h based on information from the airflow sensor. The control of the airflow sensor may be based on the results of the temperature and humidity information measuring unit 3400. For example, the temperature and humidity of the back 3014, waist 3013, knees 3012, etc., are detected, and the amount of air supplied to the first air outlet 3016a to the fourth air outlet 3016d is adjusted.

[0105] (Second-10th Embodiment) The second-10th embodiment relates to a bed 4000. The bed 4000 includes a mattress 3000 with a blower sheet according to the second-9th embodiment, a control unit 3600, and a housing 3700. The control unit 3600 is provided on the foot side of the bed 4000. The control unit 3600 is provided inside the housing 3700. The control unit 3600 controls the air supplied to the air mattress. A case adjacent to the control unit 3600 may be provided inside the housing 3700. The case is positioned next to the control unit 3600. The blower 3040 described above may be provided inside the housing 3700, on top of the control unit 3600. The blower 3040 may be provided instead of the case. If the blower 3040 is provided instead of the case, the blower 3040 can protect the control unit 3600.

[0106] The blowing mechanisms 3101-3108, the mattress with a blowing sheet 3000, and the bed 4000 according to the embodiment may be used, for example, for pressure ulcer prevention. The blowing mechanisms 3101-3108, the mattress with a blowing sheet 3000, and the bed 4000 may be used for microclimate management.

[0107] The present invention includes the following embodiments.

[0108] (Note 1) A ventilating sheet comprising: a waterproof and breathable cover; a breathable diffusion layer provided inside the cover; and a sheet member provided inside the cover, wherein the sheet member is slippery, and the diffusion layer is provided inside the sheet member. (Note 2) The ventilating sheet according to Note 1, wherein the sheet member includes a first sheet surface, a second sheet surface, and a third sheet surface, the second sheet surface is located between the first sheet surface and the third sheet surface, the slipperiness along a second direction intersecting a first direction is higher on the first sheet surface and the third sheet surface than on the slipperiness along the first direction, and the slipperiness along the first direction is higher on the second sheet surface than on the slipperiness along the second direction. (Note 3) The blower sheet as described in Note 2, wherein the diffusion layer comprises a first portion, a second portion, and a third portion, the diffusion layer comprises a first diffusion surface and a second diffusion surface, the second portion is located between the first portion and the third portion, the first surface of the sheet portion is located on the first portion, the second surface of the sheet portion is located on the second portion, the third surface of the sheet portion is located on the third portion, the second portion has an area on the first diffusion surface that is not covered by the sheet member, the first diffusion surface is located between the second diffusion surface and the cover, and the second diffusion surface is located between the first diffusion surface and the cover. (Note 4) The diffusion layer has a 40% hardness of 50 N / 314 cm based on JIS K 6400-2 A method. ２ Above, 300N / 314cm ２The following are the air-blowing sheets described in any one of the appendices 1 to 3. (Appendix 5) The air-blowing sheet described in any one of the appendices 1 to 4, wherein the diffusion layer has a 50% compression set of 10% or less according to JIS K 6400-4. (Appendix 6) The air-blowing sheet described in any one of the appendices 1 to 5, wherein the diffusion layer has a repeated compression set of 10% or less according to JIS K 6400-4. (Appendix 7) The air-blowing sheet described in any one of the appendices 1 to 6, wherein the cover has a water resistance of 4 kPa or more according to JIS L 1092 Method B. (Appendix 8) The cover has a moisture permeability of 55 g / cm² according to JIS L 1099 Method A1. ２- A blower sheet according to any one of appendices 1 to 7, which is an hour or longer. (Appendix 9) A mattress with a blower sheet, comprising the blower sheet according to appendix 1, and a mattress. (Appendix 10) A mattress with a blower sheet according to appendix 9, wherein the cover is provided on the mattress. (Appendix 11) A mattress with a blower sheet according to appendix 9 or 10, wherein the mattress is provided inside the cover, and the diffusion layer is provided on the mattress. (Appendix 12) A mattress with a blower sheet according to any one of appendices 9 to 11, further comprising a blower device for blowing air into the cover. (Appendix 13) A mattress with a blower sheet according to appendix 12, wherein the cover includes a first region, a second region, and a third region, and the blower device is provided on the side of the third region. (Appendix 14) A mattress with a blower sheet according to appendix 12 or 13, wherein the blower device blows air onto the mattress. (Note 15) A mattress with a blower sheet according to any one of Notes 12 to 14, further comprising a temperature and humidity sensor and a control unit that receives information from the temperature and humidity sensor and adjusts the airflow rate of the blower. (Note 16) A bed equipped with a mattress with a blower sheet according to any one of Notes 9 to 15. (Note 17) A blower mechanism comprising a blower sheet according to Note 1 and a blower that blows air to the cover through an air outlet in the cover, wherein the cover includes a foot portion and an upper portion above the foot portion, and the air outlet is provided in the upper portion. (Note 18) The blower mechanism according to Note 17, wherein the upper portion includes a knee portion, a waist portion or a back portion. (Note 19) The blower mechanism according to Note 18, wherein the air outlet is provided in the waist portion. (Note 20) The blower mechanism according to Note 18, wherein the air outlet is provided in the back portion.(Note 21) The ventilation mechanism according to any one of Notes 17 to 20, wherein the ventilation port includes a first ventilation port and a second ventilation port, the upper part includes a knee portion, a waist portion and a back portion, the first ventilation port and the second ventilation port satisfy either the first or second condition, in the first condition, the first ventilation port is provided in the waist portion and the second ventilation port is provided in either the knee portion or the back portion, and in the second condition, the first ventilation port is provided in the knee portion and the second ventilation port is provided in the back portion. (Note 22) The ventilation mechanism according to Note 21, wherein the ventilation port includes a first other ventilation port and a second other ventilation port, the first other ventilation port and the second other ventilation port satisfy either the first condition or the second condition, in the first condition, the waist portion is provided between the first ventilation port and the first other ventilation port, and one of the knee portion and the back portion is provided between the second ventilation port and the second other ventilation port, in the second condition, the knee portion is provided between the first ventilation port and the first other ventilation port, and the back portion is provided between the second ventilation port and the second other ventilation port. (Note 23) The ventilation mechanism according to any one of Notes 17 to 22, wherein the ventilation opening includes a first ventilation opening and a second ventilation opening, the upper part includes the knee, waist, and back, the first ventilation opening is provided in the foot area, the second ventilation opening is provided in the waist or back area, and the widthwise length of the first ventilation opening is 0.1 to 0.9 times the widthwise length of the ventilation sheet. (Note 24) The ventilation mechanism according to any one of Notes 17 to 23, wherein the ventilation opening includes a first ventilation opening, a second ventilation opening, and a third ventilation opening, the first ventilation opening is provided in the knee area of ​​the cover, the second ventilation opening is provided in the waist area of ​​the cover, and the third ventilation opening is provided in the back area of ​​the cover. (Note 25) The ventilation mechanism described in Note 24, wherein the ventilation port includes a first other ventilation port, a second other ventilation port and a third other ventilation port, the knee portion is provided between the first ventilation port and the first other ventilation port, the waist portion is provided between the second ventilation port and the second other ventilation port, the back portion is provided between the third ventilation port and the third other ventilation port, the first other ventilation port is provided in the knee portion, the second other ventilation port is provided in the waist portion, and the third other ventilation port is provided in the back portion.(Note 26) The blowing mechanism according to any one of Notes 17 to 25, further comprising a sheet member provided inside the cover, wherein the diffusion layer is provided inside the sheet member. (Note 27) The blowing mechanism according to Note 26, wherein the sheet member includes a first sheet surface, a second sheet surface, and a third sheet surface, the second sheet surface is located between the first sheet surface and the third sheet surface, the slipperiness along a second direction intersecting a first direction from the first sheet surface to the third sheet surface is higher than the slipperiness along the first direction, and the slipperiness along the second sheet surface is higher than the slipperiness along the second direction. (Note 28) The blowing mechanism according to Note 27, wherein the diffusion layer comprises a first portion, a second portion, and a third portion, the diffusion layer comprises a first diffusion surface and a second diffusion surface, the second portion is located between the first portion and the third portion, the first surface of the sheet portion is located on the first portion, the second surface of the sheet portion is located on the second portion, the third surface of the sheet portion is located on the third portion, the second portion has an area on the first diffusion surface that is not covered by the sheet member, the first diffusion surface is located between the second diffusion surface and the cover, and the second diffusion surface is located between the first diffusion surface and the cover. (Note 29) A mattress with a blowing sheet comprising the blowing mechanism according to Note 17 and a mattress. (Note 30) The mattress with a blowing sheet according to Note 29, wherein the cover is provided on the mattress. (Note 31) The mattress with a blower sheet as described in Note 29 or 30, wherein the mattress is provided inside the cover and the diffusion layer is provided on top of the mattress. (Note 32) The blower device blows air onto the mattress as described in any one of Notes 29 to 31, for the mattress with a blower sheet. (Note 33) The mattress with a blower sheet as described in any one of Notes 29 to 32, further comprising a temperature and humidity information measuring unit and a control unit that receives information from the temperature and humidity information measuring unit and adjusts the airflow rate of the blower device. (Note 34) A bed equipped with a mattress with a blower sheet as described in any one of Notes 29 to 33.

[0109] While several embodiments of the present invention have been described, these embodiments are presented as examples only and are not intended to limit the scope of the invention. These embodiments can be carried out in a variety of other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims and their equivalents.

[0110] 10 Cover, 11 First region, 12 Second region, 13 Third region, 16 Air outlet, 17 Air tube, 18 Exhaust port, 20 Diffusion layer, 21 First section, 22 Second section, 22a First diffusion surface, 22b Second diffusion surface, 23 Third section, 30 Sheet member, 31 First surface of sheet section, 32 Second surface of sheet section, 33 Third surface of sheet section, 40 Bottom, 41 Back bottom, 42 Waist bottom, 43 Knee bottom, 44 Foot bottom, 51 First engagement part, 52 Second engagement part, 53 First non-engaging part, 54 Second non-engaging part, 100 Air blowing sheet, 200 Mattress, 300 Blower device, 400 Temperature and humidity information measuring unit, 401 Flow path, 402 Sampling unit, 403a First flow path, 403b 404 Second airflow channel, 405 Temperature and humidity sensor, 405 Chamber, 500 Control unit, 600 Control unit, 700 Housing, 1000 Mattress with air-blowing sheet, 2000 Bed, D1-D3 First to third directions, 3010S Air-blowing sheet, 3010 Cover, 3011 Foot section, 3012 Knee section, 3013 Waist section, 3014 Back section, 3015 Upper section, 3016 Air outlet, 3016a First air outlet, 3016b Second air outlet, 3016c Third air outlet, 3016d Fourth air outlet, 3016e First other air outlet, 3016f Second other air outlet, 3016g Third other air outlet, 3016h Fourth other air outlet, 3017 Air-blowing tube, 3018 Exhaust port, 3020 Diffusion layer, 3021 First part, 3022 Second part, 3023 Third part, 3022a First diffusion surface, 3022b Second diffusion surface, 3030 Sheet member, 3031 First surface of sheet part, 3032 Second surface of sheet part, 3033 Third surface of sheet part, 3040 Blower device, 3051 Foot bottom, 3052 Knee bottom, 3053 Waist bottom, 3054 Back bottom, 3101-3108 Blower mechanism, 3200 Mattress, 3400 Temperature and humidity information measuring unit, 3401 Flow path, 3500 Control unit, 3600 Control unit, 3700 Housing, 3000 Mattress with blower sheet, 4000 Bed, B1-B3 Boundary, D1-D3 1st direction ~ 3rd direction

Claims

1. A cover having waterproof and breathable properties, a breathable diffusion layer provided inside the cover, and a sheet member provided inside the cover, wherein the sheet member is slippery, and the diffusion layer is a ventilation sheet provided inside the sheet member.

2. The sheet member comprises a first sheet surface, a second sheet surface, and a third sheet surface, wherein the second sheet surface is located between the first sheet surface and the third sheet surface, the slipperiness along a second direction intersecting a first direction is higher than the slipperiness along the first direction, and the slipperiness along the first direction is higher than the slipperiness along the second sheet surface, according to claim 1.

3. The blower sheet according to claim 2, wherein the diffusion layer comprises a first portion, a second portion, and a third portion, the diffusion layer comprises a first diffusion surface and a second diffusion surface, the second portion is located between the first portion and the third portion, the first surface of the sheet portion is located on the first portion, the second surface of the sheet portion is located on the second portion, the third surface of the sheet portion is located on the third portion, the second portion has an area on the first diffusion surface that is not covered by the sheet member, the first diffusion surface is located between the second diffusion surface and the cover, and the second diffusion surface is located between the first diffusion surface and the cover.

4. The diffusion layer has a 40% hardness of 50 N / 314 cm based on JIS K 6400-2 A method. ２ Above, 300N / 314cm ２ The following is the air blowing sheet according to claim 1.

5. The blower sheet according to claim 1, wherein the diffusion layer has a 50% compression residual strain of 10% or less based on JIS K 6400-4.

6. The blower sheet according to claim 1, wherein the diffusion layer has a repeated compression residual strain of 10% or less based on JIS K 6400-4.

7. The air blowing sheet according to claim 1, wherein the cover has a water resistance of 4 kPa or more based on JIS L 1092 B method.

8. The cover has a moisture permeability of 55 g / cm² according to JIS L 1099 A1 method. ２ - The air blowing sheet according to claim 1, wherein the duration is 1 hour or more.

9. A mattress with a blowing sheet, comprising the blowing sheet described in claim 1 and a mattress.

10. The cover is provided on top of the mattress, and the mattress has a ventilation sheet as described in claim 9.

11. The mattress with a ventilation sheet according to claim 9, wherein the mattress is provided inside the cover, and the diffusion layer is provided on top of the mattress.

12. The mattress with a ventilation sheet according to claim 9, further comprising a ventilation device for blowing air into the cover.

13. The mattress with a fan sheet according to claim 12, wherein the cover includes a first region, a second region, and a third region, and the fan is provided on the side of the third region.

14. The mattress with a blower sheet according to claim 12, wherein the blower device blows air onto the mattress.

15. The mattress with a fan sheet according to claim 12, further comprising: a temperature and humidity sensor; and a control unit that receives information from the temperature and humidity sensor and adjusts the airflow rate of the fan.

16. A bed comprising a mattress with a ventilation sheet as described in any one of claims 9 to 15.

17. A blowing mechanism comprising: a blowing sheet according to claim 1; and a blowing device for blowing air into the cover through an air outlet of the cover, wherein the cover includes a foot portion and an upper portion above the foot portion, and the air outlet is provided in the upper portion.

18. The air blowing mechanism according to claim 17, wherein the upper portion includes a knee portion, a waist portion, or a back portion.

19. The ventilation mechanism according to claim 18, wherein the ventilation port is provided in the waist area.

20. The air outlet is provided on the back, the air blowing mechanism according to claim 18.

21. A mattress with a blowing sheet, comprising the blowing mechanism described in claim 17, and a mattress.

22. The mattress with a fan sheet according to claim 21, further comprising: a temperature and humidity information measuring unit; and a control unit that receives information from the temperature and humidity information measuring unit and adjusts the airflow rate of the fan.

23. A bed equipped with a mattress with a ventilation sheet as described in claim 21 or 22.

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