Air supply sheet device

Abstract

To distribute air to areas relatively far from the air supply device. [Solution] An air-supplied sheet device comprising a laminate 2 having a first windproof fabric layer 5, a second windproof fabric layer 7, and a three-dimensional fabric layer 6 housed between the first windproof fabric layer 5 and the second windproof fabric layer 7, all having at least partially ventilated holes, and an air supply device for discharging air to the three-dimensional fabric layer 6, wherein the laminate 2 has at least partially wind tunnel sections 9 through which air discharged from the air supply device can pass through spaces S1, S2 between at least one of the first windproof fabric layer 5 and the second windproof fabric layer 7 and the three-dimensional fabric layer 6.

Description

Technical Field

[0001] The present invention relates to an air-sending seat device that improves the comfort of a user by sending air to a surface that the user contacts.

Background Art

[0002] Regarding members such as a seating surface and a bedding that are assumed to be used in a manner that a user contacts for a long time, various studies have been conducted to improve their comfort. As an example, baby strollers, child seats, and wheelchairs can be used outdoors or in a similar place, so when the temperature is high, the comfort of the user may be impaired. Devices have been proposed that are installed on the seating surface of this type of article to reduce the body temperature of the user.

[0003] For example, Japanese Utility Model Registration Publication No. 3169036 (Patent Document 1) discloses a device that incorporates a cold storage medium and can send cold air generated by the cold storage medium to the user. Also, International Publication No. 2016 / 006082 (Patent Document 2) discloses a device that promotes the vaporization of sweat of a user sitting on a bag-shaped body by circulating air inside the bag-shaped body, thereby cooling the user. Also, the demand for enhancing the comfort of the user by air-sending also exists in bedding and the like.

Prior Art Documents

[0006] Therefore, there is a need for an air supply sheet device that can distribute air to areas relatively far from the air supply device. [Means for solving the problem]

[0007] The present invention provides an air-supplied sheet device comprising: a laminate having a first windproof fabric layer, a second windproof fabric layer, and a three-dimensional fabric layer housed between the first windproof fabric layer and the second windproof fabric layer, each having at least partially ventilated holes; and an air-supplying device for discharging air to the three-dimensional fabric layer, wherein the laminate has at least partially a wind tunnel portion through which air discharged from the air-supplying device can pass through the space between at least one of the first windproof fabric layer and the second windproof fabric layer and the three-dimensional fabric layer.

[0008] With this configuration, the air discharged from the air supply device can flow around the three-dimensional fabric layer in the wind tunnel, thus minimizing pressure loss. This makes it easier to distribute air to areas relatively far from the air supply device.

[0009] Preferred embodiments of the present invention will be described below. However, the scope of the present invention is not limited by the examples of preferred embodiments described below.

[0010] In one embodiment of the air-supplying sheet device according to the present invention, it is preferable that, in the cross-section of the laminated body that crosses the direction of air flow in the wind tunnel, the total length of the first windproof fabric layer and the second windproof fabric layer is greater than the circumference of the three-dimensional fabric layer.

[0011] This configuration allows for the formation of a wind tunnel in a relatively simple manner.

[0012] In one embodiment of the air-supplying sheet device according to the present invention, it is preferable that the laminate partially has the air tunnel portion, and that the air tunnel portion is located in a portion adjacent to the air-supplying device.

[0013] This configuration allows for further suppression of pressure loss in the wind tunnel.

[0014] In one embodiment of the air supply sheet device according to the present invention, it is preferable that the first windproof fabric layer in the wind tunnel portion does not have the ventilation holes.

[0015] This configuration allows for further suppression of pressure loss in the wind tunnel.

[0016] In one embodiment, the air-supplying sheet device according to the present invention preferably has a laminate that has a headrest portion that supports the user's head when in use, and the first windproof fabric layer in the headrest portion has the ventilation holes.

[0017] This configuration allows for cooling of the user's head, making it more comfortable for the user.

[0018] In one embodiment, the air-supplying sheet device according to the present invention preferably has a thigh-back portion that is positioned along the back of the user's thigh when in use, and the air tunnel portion is provided in the thigh-back portion.

[0019] With the above configuration, by placing the air tunnel section in the thigh area, where the need for cooling is relatively low, it becomes easier to cool the head and torso, where the need for cooling is relatively high.

[0020] In one embodiment, the air-supplying seat device according to the present invention is preferably installed on at least one seat selected from the group consisting of strollers, child seats, and wheelchairs.

[0021] This configuration allows for cooling of the user, particularly in outdoor or similar locations where cooling is especially necessary, such as on the seat surface.

[0022] The air-sending sheet device according to the present invention is preferably installed on a bed in one aspect.

[0023] According to this configuration, the comfort during sleep can be improved.

[0024] Further features and advantages of the present invention will become more apparent from the following description of exemplary and non-limiting embodiments described with reference to the drawings.

Brief Description of the Drawings

[0025] [Figure 1] It is a plan view of the air-sending sheet device according to the first embodiment. [Figure 2] It is a cross-sectional view taken along line II-II of FIG. 1. [Figure 3] It is a cross-sectional view taken along line III-III of FIG. 1. [Figure 4] It is a cross-sectional view taken along line IV-IV of FIG. 1. [Figure 5] It is a schematic diagram showing the usage state of the air-sending sheet device according to the embodiment. [Figure 6] It is a schematic diagram showing the usage state of the baby stroller according to the embodiment. [Figure 7] It is a plan view of the air-sending sheet device according to the second embodiment. [Figure 8] It is a cross-sectional view taken along line VIII-VIII of FIG. 7. [Figure 9] It is a cross-sectional view showing the usage state of the air-sending sheet device according to the second embodiment. [Figure 10] It is a cross-sectional view of the air-sending sheet device according to a modification of the second embodiment. [Figure 11] It is a cross-sectional view of the air-sending sheet device according to a modification of the second embodiment.

Modes for Carrying Out the Invention

[0026] 〔First Embodiment〕 A first embodiment of the air-supplying seat device according to the present invention will be described with reference to the drawings. Below, an example will be described in which the air-supplying seat device according to the present invention is applied to an air-supplying seat device 1 intended to be laid on the seat surface of a stroller B.

[0027] The air supply sheet device 1 comprises a laminate 2 and an air supply device 3 (Figures 1 to 4). The laminate 2 has a mesh fabric layer 4, a first windproof fabric layer 5, a three-dimensional fabric layer 6, a second windproof fabric layer 7, and a stain-resistant fabric layer 8 in this order (Figure 2). The air supply device 3 is housed between the first windproof fabric layer 5 and the second windproof fabric layer 7 of the laminate 2 and discharges air to the three-dimensional fabric layer 6. The first windproof fabric layer 5 has ventilation holes 51. Note that in the cross-sectional views of Figures 2 to 4, the dimensions and deformation of each layer are exaggerated to illustrate the structure of each layer.

[0028] The air-supplying seat device 1 is used by being laid on the seat surface of stroller B (Figure 5). The laminate 2 has parts corresponding to each part of the body of an infant riding in stroller B. Specifically, it has a headrest portion 21 that supports the infant's head, a seat portion 22 that supports the infant's buttocks, and a thigh portion 23 that is positioned along the back of the infant's thighs. In the headrest portion 21 and the seat portion 22, the first windproof fabric layer 5 has ventilation holes 51. On the other hand, the thigh portion 23 does not have ventilation holes 51.

[0029] The air-supplying seat device 1 is generally a device that supplies air to an infant (an example of a user) riding in stroller B by releasing air discharged from the air-supplying device 3 through the ventilation holes 51 of the first windproof fabric layer 5. By supplying air to the infant, it becomes easier to prevent excessive rise in body temperature when the temperature is high, and skin irritation caused by moisture accumulating between the infant and the seat.

[0030] The first windproof fabric layer 5 and the second windproof fabric layer 7 are layers made of fabric with low breathability. Examples of such fabrics include, but are not limited to, woven fabrics, knitted fabrics, artificial leather, synthetic leather, and natural leather. The material forming the first windproof fabric layer 5 and the material forming the second windproof fabric layer 7 may be the same or different. Furthermore, since the first windproof fabric layer 5 and the second windproof fabric layer 7 only need to be arranged with the three-dimensional fabric layer 6 sandwiched between them in the cross-section of the laminate 2, the first windproof fabric layer 5 and the second windproof fabric layer 7 may be a single piece of fabric. In this case, for example, the first windproof fabric layer 5 and the second windproof fabric layer 7 can be formed by folding a fabric of the material exemplified above and placing the three-dimensional fabric layer 6 between them.

[0031] The three-dimensional fabric layer 6 is a layer made of fabric in which the fibers have a three-dimensional structure. Examples of the three-dimensional fabric layer 6 include, but are not limited to, three-dimensional knitted fabrics and three-dimensional fibers. Examples of the fiber material constituting the three-dimensional fabric layer 6 include, but are not limited to, polyester such as polytrimethylene terephthalate, polyamide, polypropylene, and polyethylene. Because the three-dimensional fabric layer 6 has many three-dimensional spaces between the fibers, it has the property of allowing air to easily circulate inside.

[0032] In this embodiment, the first windproof fabric layer 5 and the second windproof fabric layer 7 are sewn together near their ends to form a cylindrical space T surrounded by the first windproof fabric layer 5 and the second windproof fabric layer 7. The three-dimensional fabric layer 6 is housed in this cylindrical space T. The mesh fabric layer 4 is located outside the space T on the side of the first windproof fabric layer 5, and the stain-resistant fabric layer 8 is located outside the space T on the side of the second windproof fabric layer 7.

[0033] The mesh fabric layer 4 is a layer made of fabric having a mesh-like structure. Examples of fibrous materials constituting the mesh fabric layer 4 include, but are not limited to, synthetic fibers such as polyester (e.g., polytrimethylene terephthalate), polyamide, polypropylene, and polyethylene. Regenerated fibers such as rayon, and natural fibers such as cotton and cellulose fibers may also be interwoven or knitted. Since the mesh fabric layer 4 is a layer that comes into direct contact with infants during use, the material and structure are selected considering texture, feel, color, and pattern. However, in this invention, the presence or absence and structure of the mesh fabric layer are optional.

[0034] The stain-resistant fabric layer 8 is a layer made of a material that does not easily adhere to sebum, dust, etc., and can be formed from a fibrous material such as polyester. The structure of the stain-resistant fabric layer 8 may be woven or knitted, and it may also be treated with water-repellent or waterproof processing. However, in the present invention, the presence or absence and composition of the stain-resistant fabric layer are optional.

[0035] Various components may be optionally added to the laminate 2 for use as a seat for stroller B. Examples of such components include, but are not limited to, holes or notches for passing the seat belt of stroller B, fasteners or fasteners for securing to stroller B, cushioning material to improve cushioning, and cooling fabric to improve cooling. In this embodiment, as an example of this type of component, a belt hole 24 for passing the seat belt of stroller B is provided.

[0036] The air supply device 3 may be a known device capable of discharging air, for example, a motor-driven blower powered by a battery. The air supply device 3 is housed in the thigh back portion 23 of the laminate 2, between the first windproof fabric layer 5 and the second windproof fabric layer 7, i.e., in the aforementioned cylindrical space T. The second windproof fabric layer 7 and the stain-resistant fabric layer 8 have intake holes 31 in the portions corresponding to the intake ports of the air supply device 3 (Figure 4).

[0037] Air discharged from the air supply device 3 to the three-dimensional fabric layer 6 flows through the three-dimensional space of the three-dimensional fabric layer 6. On the other hand, the first windproof fabric layer 5 and the second windproof fabric layer 7 have low breathability, so air hardly passes through them. Therefore, the air supplied from the air supply device 3 located in the back of the thigh portion 23 hardly flows out of the laminate 2 by passing through the first windproof fabric layer 5 and the second windproof fabric layer 7, and instead flows through the three-dimensional fabric layer 6 in the order of the seat portion 22 and the headrest portion 21. This air then flows out from the ventilation holes 51 provided in the headrest portion 21 and the seat portion 22, passes through the mesh fabric layer 4, and reaches the infant riding in the stroller B. This is expected to have effects such as preventing the infant's body temperature from rising.

[0038] The laminate 2 has a wind tunnel section 9. The wind tunnel section 9 is a section through which air discharged from the air supply device 3 can pass through at least one of the space S1 between the first windproof fabric layer 5 and the three-dimensional fabric layer 6, and the space S2 between the second windproof fabric layer 7 and the three-dimensional fabric layer 6. In this embodiment, a wind tunnel section 9 is provided in the thigh back section 23, while a wind tunnel section 9 is not provided in the headrest section 21 and the seat surface section 22.

[0039] Figure 2 is a cross-sectional view of the seat portion 22, where the wind tunnel 9 is not provided, taken across the direction of airflow. In the seat portion 22, the cross-sectional area of ​​the cylindrical space T (T1) and the cross-sectional area of ​​the three-dimensional fabric layer 6 are approximately the same, and there is virtually no space between the first windproof fabric layer 5 and the three-dimensional fabric layer 6, nor between the second windproof fabric layer 7 and the three-dimensional fabric layer 6. This structure can be realized by making the total length of the first windproof fabric layer 5 and the second windproof fabric layer 7 and the perimeter of the three-dimensional fabric layer approximately the same in the cross-section of the laminate 2 (Figure 2) across the direction of airflow. With this structure, in the seat portion 22, air flows through the three-dimensional fabric layer 6. Although the three-dimensional fabric layer 6 is a breathable layer, it is not entirely free from pressure loss due to the three-dimensional fibers. The same explanation applies to the headrest portion 21.

[0040] Figure 3 is a cross-sectional view of the back of the thigh portion 23, where the wind tunnel 9 is located, crossing the direction of airflow. Unlike the seat portion (Figure 2), in the back of the thigh portion 23 where the wind tunnel 9 is located, the cross-sectional area of ​​the three-dimensional fabric layer 6 is smaller than the cross-sectional area of ​​the cylindrical space T (T2), resulting in a space S1 between the first windproof fabric layer 5 and the three-dimensional fabric layer 6, and a space S2 between the second windproof fabric layer 7 and the three-dimensional fabric layer 6. This structure is achieved by the fact that in the cross-section of the laminate 2 crossing the direction of airflow in the wind tunnel 9 (Figure 3), the total length of the first windproof fabric layer 5 and the second windproof fabric layer 7 is greater than the circumference of the three-dimensional fabric layer. More specifically, when forming the back of the thigh portion 23, the width of the first windproof fabric layer 5 and the second windproof fabric layer 7 should be made larger than the width of the three-dimensional fabric layer 6, and there should be some leeway in the dimensions of the first windproof fabric layer 5 and the second windproof fabric layer 7 compared to the dimensions of the three-dimensional fabric layer 6. This structure allows air to flow primarily through spaces S1 and S2 in the wind tunnel section 9. Therefore, pressure loss due to the fibers of the three-dimensional fabric layer 6 is less likely to occur. Furthermore, since there are no ventilation holes 51 in the wind tunnel section 9 (back of the thigh section 23), substantially the entire volume of air flowing into the wind tunnel section 9 flows along the first windproof fabric layer 5 and the second windproof fabric layer 7.

[0041] Figure 4 is a cross-sectional view of the air supply seat device 1 along the direction of air flow. As shown in Figure 4, the portion of the laminate 2 in which the air tunnel section 9 is provided (the back of the thigh section 23) is located adjacent to the air supply device 3, while the portion in which the air tunnel section 9 is not provided (the seat surface section 22 and the headrest section 21) is located on the opposite side of the air supply device 3 from the air tunnel section 9. The air discharged from the air supply device 3 first enters the air tunnel section 9 (the back of the thigh section 23), bypasses the three-dimensional fabric layer 6, and flows through spaces S1 and S2. Subsequently, the air enters the seat surface section 22 and flows through the three-dimensional fabric layer 6. At this time, a portion of the air flows out to the outside of the laminate 2 through the ventilation holes 51 provided in the seat surface section 22. On the other hand, the remaining air enters the headrest section 21 and flows out to the outside of the laminate 2 through the ventilation holes 51 provided in the headrest section 21. With the above configuration, pressure loss can be suppressed in the wind tunnel section 9, making it easier to distribute air to the headrest section 21, which is furthest from the air supply device 3.

[0042] [Modified example of the first embodiment] Next, a modified example of the air supply sheet device 1 according to the first embodiment will be described. In the following description, the first windproof fabric layer and the second windproof fabric layer may be collectively referred to as the "windproof fabric layer." In this case, the term "windproof fabric layer" encompasses cases where only the first windproof fabric layer is referred to, where only the second windproof fabric layer is referred to, and where both the first windproof fabric layer and the second anti-fouling fabric layer are referred to.

[0043] In the above embodiment, a configuration was described as forming spaces S1 and S2, which serve as air passages, in the wind tunnel section 9 by providing extra fabric dimensions for the first windproof fabric layer 5 and the second windproof fabric layer 7 compared to the dimensions of the three-dimensional fabric layer 6. However, this configuration is only one example of a wind tunnel configuration. For example, spaces that serve as air passages can also be formed and a wind tunnel can be realized by placing a spacer between the windproof fabric layer and the three-dimensional fabric layer to separate them, or by making the windproof fabric layer bellows-shaped. Furthermore, by using a configuration such as sewing the wind tunnel section so that the width on the downstream side is smaller than the width on the upstream side in the direction of airflow, it becomes easier to distribute air to parts farther from the air supply device.

[0044] In the above embodiment, a configuration in which the air tunnel section 9 does not have ventilation holes 51 was described as an example. While this configuration is preferable in terms of allowing air to reach the headrest section 21, it is not essential in the present invention. For example, if it is desired to supply air to the back of an infant's thighs, ventilation holes may be provided in the air tunnel section.

[0045] In the above embodiment, a configuration in which the laminate 2 has a headrest portion 21, a seat portion 22, and a thigh back portion 23 was described as an example, but in the present invention, the division of the laminate into any part is arbitrary. Also, in the above embodiment, a configuration in which ventilation holes 51 are provided in the headrest portion 21 and the seat portion 22 was described as an example, but in the present invention, the arrangement of the ventilation holes is arbitrary.

[0046] In the above embodiment, the air-supplying seat device 1, which is laid on the seat of stroller B, was described as an example. However, the air-supplying seat device according to the present invention can be configured not only for strollers but also for laying on the seat of any object having a seat. However, since the main effect of blowing air from the seat is to assist in regulating the user's body temperature and to prevent skin irritation caused by stuffiness, it is preferable to install the air-supplying seat device according to the present invention on the seat of an object that can be used outdoors or in a similar location. Examples of such objects include, but are not limited to, strollers, child seats, wheelchairs, mobility scooters, and chairs.

[0047] The air-supplying seat device 1 described above is intended to be installed on the seat surface of a stroller. That is, the air-supplying seat device 1 is separate from the stroller, and by installing the air-supplying seat device 1 on the seat surface of a conventional stroller, an air-supplying function is added to the conventional stroller. However, if the same configuration as the air-supplying seat device 1 described above is applied to the seat surface of the stroller itself, a stroller with the same functions as those added to the stroller by the air-supplying seat device 1 in the above embodiment can be realized. This embodiment is also one embodiment of the present invention and is shown as stroller 10 in Figure 6. Stroller 10 comprises a laminate 2 and an air-supplying device 3, with the laminate 2 on the seat surface 11. In other words, stroller 10 can generally be understood as a conventional stroller frame with the air-supplying seat device 1 according to the above embodiment installed in place of the conventional seat surface member. Components similar to those in the embodiment of air-supplying seat device 1 described above are denoted by the same reference numerals and their description is omitted.

[0048] Furthermore, similar modifications are not limited to strollers. For example, one embodiment of the present invention involves installing the air-supplied seat device according to the present invention in place of the conventional seat member on the frame of a conventional child seat. Another embodiment of the present invention involves installing the air-supplied seat device according to the present invention in place of the conventional seat member on the frame of a conventional wheelchair.

[0049] [Second Embodiment] A second embodiment of the air-supplied sheet device according to the present invention will be described with reference to the drawings. Below, an example will be described in which the air-supplied sheet device according to the present invention is applied to an air-supplied sheet device 1A laid on a bed. Components similar to those of the air-supplied sheet device 1 according to the above embodiment will be denoted by the same reference numerals, and their descriptions will be simplified or omitted. A bed refers to a surface on which bedding such as a futon or mattress is placed and on which a user can lie down. The bedding may be placed directly on the floor or ground, or on furniture such as a bed.

[0050] The air supply sheet device 1A comprises a laminate 2A and an air supply device 3 (Figures 7 and 8). The laminate 2A has a first windproof fabric layer 5A, a first nonwoven fabric layer 25, a cotton fabric layer 26, a second nonwoven fabric layer 27, a three-dimensional fabric layer 6A, and a second windproof fabric layer 7A in this order (Figure 8). Of these, the first windproof fabric layer 5A, the first nonwoven fabric layer 25, the cotton fabric layer 26, and the second nonwoven fabric layer 27 are integrated by quilting, and these will be referred to as the front quilt Q. The air supply device 3 is housed in a portion cut out of the three-dimensional fabric layer 6A and discharges air to the three-dimensional fabric layer 6A. The front quilt Q also has an intake hole 32 in a portion corresponding to the intake port of the air supply device 3.

[0051] The first windproof fabric layer 5A and the second windproof fabric layer 7A are layers made of fabrics with low breathability, and examples of the fabrics that make them up are the same as in the embodiment described above. In this embodiment, the first windproof fabric layer 5A is a layer that is in direct contact with the user, and it is preferable that the fabric is provided with functions such as making the user feel cool. The second windproof fabric layer 7A is a layer that is in direct contact with the bedding, and it is preferable that the fabric is provided with functions such as anti-slip.

[0052] Unlike the first windproof fabric layer 5 of the above embodiment, the first windproof fabric layer 5A of this embodiment does not have visible ventilation holes. Instead of visible ventilation holes, the first windproof fabric layer 5A has gaps between the fibers of the fabric structure that allow a certain amount of airflow, and these gaps function as ventilation holes. In other words, the first windproof fabric layer 5A has both windproof properties sufficient to form a wind tunnel 9A and ventilation properties sufficient to allow the user who touches the first windproof fabric layer 5A to feel the airflow.

[0053] The three-dimensional fabric layer 6A differs in shape from the three-dimensional fabric layer 6 of the above embodiment, but in terms of material, it is the same as the three-dimensional fabric layer 6 of the above embodiment.

[0054] The first nonwoven fabric layer 25 and the second nonwoven fabric layer 27 are layers that protect the cotton fabric layer 26. By placing the first nonwoven fabric layer 25 and the second nonwoven fabric layer 27 above and below the cotton fabric layer 26, the fibers constituting the cotton fabric layer 26 are less likely to fall out of the cotton fabric layer 26. The first nonwoven fabric layer 25 and the second nonwoven fabric layer 27 may be, for example, spunlace, spunbond, meltblown, taffeta, etc. The first nonwoven fabric layer 25 and the second nonwoven fabric layer 27 may be made of the same material or different materials. Deodorizing treatment may be applied to one or both of the first nonwoven fabric layer 25 and the second nonwoven fabric layer 27.

[0055] The cotton fabric layer 26 is a layer that provides the air-supplying sheet device 1A with a desirable feel and sweat absorption for use as bedding, and for example, has a basis weight of 100 g / m². 2 It can be a cotton cloth of a certain degree. However, the basis weight of the cotton cloth layer 26 is not limited to this, and is 80g / m². 2 More than 200g / m 2 The following are possible. In addition, a layer of other material may be placed in place of or in addition to the cotton fabric layer 26. Examples of such other materials include, but are not limited to, nonwoven fabrics such as needle-punched nonwoven fabrics and air-laid nonwoven fabrics, and knitted fabrics that have been brushed.

[0056] The air-supplied sheet device 1A has, in a plan view, a main section 12 on which the user lies, and a sub-section 13 extending to the side of the main section 12 and housing the air-supplied device 3 (Figure 7). The main section 12 is roughly rectangular. The sub-section 13 is similarly rectangular and is provided along the long side of the main section 12. The long side of the sub-section 13 is shorter than the long side of the main section 12. The laminated body 2A has a shape corresponding to the main section 12 and the sub-section 13 in a plan view, that is, a shape formed by connecting two rectangles.

[0057] At the edge of the laminate 2A, the outer quilt Q and the second windproof fabric layer 7A are sewn together to form a tubular space T. However, the laminate 2A is not sewn together at two points on the long side where the sub-part 13 of the main part 12 is not connected, and this part has an opening 14.

[0058] In the plan view, the front quilt Q and the second windproof fabric layer 7A are slightly larger than the three-dimensional fabric layer 6A. When the air supply device 3 is operated, the inside of the laminate 2A becomes positively pressurized, and the laminate 2A expands, forming a space S3 between the front quilt Q and the three-dimensional fabric layer 6A. In other words, in this embodiment, the wind tunnel section 9A is present throughout the entire air supply sheet device 1A. In general use, the second windproof fabric layer 7A is in contact with the bedding, so it is difficult for a space to form between the second windproof fabric layer 7A and the three-dimensional fabric layer 6A.

[0059] The air supplied from the air supply device 3 forms a flow that mainly passes through space S3 and flows out from the opening 14. In this flow, some of the air flows out through the gaps in the fibers of the first windproof fabric layer 5A. When the user P lies down on the main part 12, the space S3 is partially compressed by the weight of the user P (Figure 9). In this area, the three-dimensional fabric layer 6A becomes the main air path. That is, in areas other than where the user is lying, the air flows around the three-dimensional fabric layer 6A, making it easier for air to circulate throughout the entire air supply sheet device 1A. This can improve comfort during sleep.

[0060] [Modified example of the second embodiment] Next, a modified example of the air supply sheet device 1A according to the second embodiment will be described. In the following description, the first windproof fabric layer and the second windproof fabric layer may be collectively referred to as the "windproof fabric layer." In this case, the term "windproof fabric layer" encompasses all cases, including cases where only the first windproof fabric layer is referred to, cases where only the second windproof fabric layer is referred to, and cases where both the first windproof fabric layer and the second anti-fouling fabric layer are referred to.

[0061] In the above embodiment, an example was described in which a first nonwoven fabric layer 25, a cotton fabric layer 26, and a second nonwoven fabric layer 27 are provided between the first windproof fabric layer 5A and the three-dimensional fabric layer 6A. However, a nonwoven fabric layer and a cotton fabric layer can similarly be provided between the second windproof fabric layer and the three-dimensional fabric layer. In the laminate 2B of the air supply sheet device 1B shown in Figure 10, a third nonwoven fabric layer 28 and a second cotton fabric layer 29 are provided between the second windproof fabric layer 7A and the three-dimensional fabric layer 6A. The second windproof fabric layer 7A, the second cotton fabric layer 29, and the third nonwoven fabric layer 28 are integrated by quilting.

[0062] Conversely, it is not necessary to interpose another layer between the first windproof fabric layer and the three-dimensional fabric layer. In the laminate 2C of the air supply sheet device 1C shown in Figure 11, the first windproof fabric layer 5A, the three-dimensional fabric layer 6A, and the second windproof fabric layer 7A are arranged without interposing a nonwoven fabric layer or a cotton fabric layer between them. The laminate 2C also has a mesh fabric layer 4A on top of the first windproof fabric layer 5A.

[0063] [Other Embodiments] As described above, the present invention has been explained using two embodiments as examples: an air-supplying sheet device 1 laid on a seat surface and an air-supplying sheet device 1A laid on a bed. However, the application of the present invention is not limited to seats and beds. For example, the present invention can also be applied to surfaces such as the back of school bags and rucksacks.

[0064] With regard to other configurations, the embodiments disclosed herein are illustrative in all respects, and it should be understood that the scope of the present invention is not limited thereto. Those skilled in the art will readily understand that modifications can be made as appropriate without departing from the spirit of the invention. Therefore, other embodiments modified without departing from the spirit of the invention are naturally included within the scope of the present invention. [Examples]

[0065] The present invention will be further described below with reference to examples. However, the following examples are not limiting to the present invention.

[0066] [Configuration of the air supply sheet device] (Example 1) As the air supply sheet device for Example 1, an air supply sheet device having the planar shape shown in Figure 1 was fabricated. The total length of the first windproof fabric layer and the second windproof fabric layer was made 10 cm larger than the circumference of the three-dimensional fabric layer to form a wind tunnel.

[0067] (Example 2) The air supply sheet device of Example 2 was prepared in the same manner as in Example 1, except that the total length of the first windproof fabric layer and the second windproof fabric layer was made 20 cm larger than the circumference of the three-dimensional fabric layer.

[0068] (Example 3) The air supply sheet device of Example 3 was prepared in the same manner as in Example 1, except that the total length of the first windproof fabric layer and the second windproof fabric layer was made 30 cm larger than the circumference of the three-dimensional fabric layer.

[0069] (Comparative example) A comparative air supply sheet device was prepared in the same manner as in Example 1, except that the total length of the first windproof fabric layer and the second windproof fabric layer was made approximately the same as the circumference of the three-dimensional fabric layer.

[0070] [Evaluation Method] The air-supplied seat device under evaluation was placed on the floor with the air supply unit not in operation, and an examiner lay down on it. After three minutes, the examiner moved away from the air-supplied seat device, and the surface temperature of each vent was measured using a FLIR-E6390 infrared thermography camera (FLIR Systems). This procedure was repeated five times, and the average temperature of the five measurements was taken as the measurement value with the air supply unit not in operation. Next, the test was performed in the same manner as above, except with the air supply unit in operation, and the average temperature of the five measurements was taken as the measurement value with the air supply unit in operation. For each vent, the difference between the measurement value with the air supply unit in operation and the measurement value with the air supply unit in operation was calculated, and this was taken as the temperature drop for each vent. The average temperature drop for four vents in the headrest area was calculated, and the average temperature drop for eight vents in the seat area was calculated.

[0071] 〔result〕 Table 1 shows the temperature reduction of the headrest and seat portion for Examples 1-3 and the Comparative Example. In all three Examples 1-3, the temperature reduction was greater for both the headrest and seat portion compared to the Comparative Example. In the Comparative Example, the surface temperature of the headrest portion was higher when the air supply device was running compared to when it was not running, so the temperature reduction is shown as a negative value in Table 1.

[0072] Table 1: Examples and Comparative Examples [Table 1] [Industrial applicability]

[0073] This invention can be applied to surfaces that come into contact with the user, such as seats in strollers, child seats, wheelchairs, mobility scooters, and chairs, as well as beds and other sleeping surfaces. [Explanation of Symbols]

[0074] [First Embodiment] 1: Air supply sheet device 2: Laminate 21: Headrest area 22: Seat portion 23: Back of thigh 24: Belt holes 3: Air supply device 31: Intake port 4: Mesh fabric layer 5: First windproof fabric layer 51: Ventilation holes 6:Three-dimensional fabric layer 7:Second windproof fabric layer 8: Stain-resistant fabric layer 9: Wind tunnel section 10: Stroller 11: Seat

[0075] [Second Embodiment] 1A: Air supply sheet device 12: Subject 13: Subpart 14: Opening 2A: Laminate 32: Intake port 5A: First windproof fabric layer 6A: Three-dimensional fabric layer 7A: Second windproof fabric layer 9A: Wind tunnel section 1B: Air supply sheet device (modified version) 2B: Laminated material (modified version) 1C: Air supply sheet device (modified version) 4A: Mesh fabric layer (modified version)

Claims

1. A laminate comprising a first windproof fabric layer having at least partially ventilated holes, a second windproof fabric layer, and a three-dimensional fabric layer housed between the first windproof fabric layer and the second windproof fabric layer, An air-supplying sheet device comprising an air supply device that discharges air to the three-dimensional fabric layer, The laminate is an air supply sheet device having at least partially an air tunnel through which air discharged from the air supply device can pass through the space between at least one of the first windproof fabric layer and the second windproof fabric layer and the three-dimensional fabric layer.

2. The air supply sheet device according to claim 1, wherein in the cross-section of the laminated body that crosses the direction of air flow in the wind tunnel, the total length of the first windproof fabric layer and the second windproof fabric layer is greater than the circumference of the three-dimensional fabric layer.

3. The air supply sheet device according to claim 1, wherein the laminate partially has the air tunnel portion, and the air tunnel portion is located adjacent to the air supply device.

4. The air supply sheet device according to claim 1, wherein the first windproof fabric layer in the wind tunnel section does not have the ventilation holes.

5. The laminate has a headrest portion that supports the user's head when in use. The air supply sheet device according to claim 1, wherein the first windproof fabric layer has the ventilation holes in the headrest portion.

6. The laminate has a thigh portion that is positioned along the back of the user's thigh when in use, The air supply sheet device according to claim 1, wherein the air tunnel portion is provided in the back of the thigh.

7. An air-supplying seat device according to any one of claims 1 to 6, which is installed on at least one seat selected from the group consisting of strollers, child seats, and wheelchairs.

8. An air supply sheet device according to any one of claims 1 to 6, which is installed in a bed.

Images