JP7384607B2 - Ventilation mats and seats - Google Patents

Description

The present invention relates to a seat installed in, for example, an automobile and a ventilation mat used therein, and particularly relates to a seat with improved ventilation efficiency.

For example, when sitting in a seat of a car or the like for a long period of time, especially under conditions of high ambient temperature and humidity, the surface of the seat and the part that comes into contact with the human body may feel stuffy or sticky. Since this "stuffiness" and "sticky feeling" impair the comfort of the seated person, various countermeasures against such problems have been studied.

As one of such studies, proposals such as those disclosed in Patent Documents 1 and 2 have been made by the patent applicant, for example. In particular, FIGS. 7 and 14 of Patent Document 1 show a schematic cross-sectional view of a seat with a built-in air blower, in which air sent from an air source such as an air blower passes through a tube-shaped ventilation passage. A mode is disclosed in which air is emitted from the air outlet to a seated person. Conversely, an embodiment is disclosed in which air around a seated person is sucked in from a suction port through a tube-shaped ventilation path using an air source such as an air blower. By blowing air like this, the "stuffiness" and "sticky feeling" of the seated person will be eliminated. Further, related techniques include, for example, Patent Documents 3 to 8.

Patent No. 4999455: Kurabe Patent No. 5430085: Kurabe JP 2007-84039 Publication: Bridgestone JP 2017-71368 Publication: Bridgestone Patent No. 4107033: Matsushita Electric Industrial Patent No. 4125721: W. E. T. International Publication WO2018/221422 Publication: Kurabe International Publication WO2018/221419 Publication: Kurabe

Particularly in the automobile industry, demands for energy conservation are always high, and the field of vehicle seats is no exception. In order to provide as much comfort as possible with as little power as possible, continued improvements in ventilation efficiency are required. Although there are technologies that have already been put into practical use among the above-mentioned patent documents, there is still a problem of a decrease in air blowing efficiency due to pressure loss and the like. For example, the ventilation device according to Patent Document 1 has a structure in which the ventilation path narrows rapidly near the ventilation source when the ventilation path is connected to the ventilation source such as a fan. As a result, losses occur due to changes in flow velocity and friction with the wall surface, resulting in a reduction in air volume. Further, a ventilation device for a vehicle seat according to Patent Document 6 consists of an insert made of foam formed in a net shape and a film-like barrier sub-layer covering the insert, and holes are formed in the barrier sub-layer to It has a structure that allows air to be blown out or sucked in through the holes. This causes turbulence in the airflow flowing into and out of the insert through the holes in the barrier sublayer, resulting in loss and a problem in that the air volume decreases.

The present invention has been made to solve the problems of the prior art, and its purpose is to provide a ventilation mat with improved air blowing efficiency.

In order to achieve the above object, a ventilation mat according to the present invention has a ventilation mat main body in which a plurality of tubes are connected in a sheet shape, and a ventilation guide provided with a fan mounting hole, and the ventilation mat main body has , a slit is provided on one side of the plurality of tubes so as to span the plurality of tubes, and a ventilation part is connected to the other side of the plurality of tubes by a material of the tube, The ventilation guide includes a base material having an air permeable three-dimensional structure;
a non-breathable material that covers the periphery of the base material, the plurality of tubes and the base material are connected to allow air circulation, and the ventilation mat main body and the ventilation guide have approximately the same width. It is something that is.
Further, the ventilation mat main body is composed of at least a first ventilation mat main body and a second ventilation mat main body, and has a connecting mat, and the first ventilation mat main body and the second ventilation mat main body are connected to each other. are connected via the connection mat, the connection mat having a base material having a three-dimensional structure with air permeability, and a non-breathable material covering the periphery of the base material, and the first The tubes of the ventilation mat main body, the tubes of the second ventilation mat main body, and the base material of the connecting mat are in communication so as to allow air circulation, and the ventilation guide, the first ventilation mat main body, It is conceivable that the connection mat and the second ventilation mat main body are connected in a straight line and have approximately the same width.
Further, the seat according to the present invention includes a seat cushion material, a skin cover, and the ventilation mat, the seat cushion material is covered with the skin cover, and the seat cushion material and the skin cover are fixed. A hanging part is formed, and the ventilation mat is arranged so that the connection mat is located in the hanging part.

According to the ventilation mat according to the present invention, there is little loss due to changes in flow velocity, wall friction, etc., and it is possible to achieve excellent ventilation efficiency with sufficient air volume.

FIG. 2 is a perspective view showing one side of the ventilation mat used in the present invention. FIG. 1 is a schematic diagram of an automobile seat equipped with a ventilation mat of the present invention. FIG. 2 is a cross-sectional view of a hanging portion of an automobile seat on which the ventilation mat of the present invention is mounted. 3 is a graph and a table showing the results of wind speed measurements.

Embodiments of the present invention will be described below with reference to the drawings. The ventilation mat described below is provided on at least one or both of the seat surface and the backrest of an automobile seat. Further, the ventilation mat according to the present invention is installed so as to be sandwiched between the cushioning material of an automobile seat and the skin cover that covers the cushioning material. Further, the ventilation mat is provided with a fan, and the fan sucks air from the ventilation mat or causes air to flow into the ventilation mat.

In the following description, when a ventilation mat is installed on an automobile seat, the surface located on the skin cover side, that is, the seat surface side, will be referred to as the front surface, and the surface located on the cushioning material side of the automobile seat will be referred to as the back surface.

FIG. 1 shows a schematic diagram of a ventilation mat 1 according to the first embodiment. In FIG. 1, a perspective view of a ventilation mat 1 is shown. As shown in FIG. 1, the ventilation mat 1 according to the first embodiment includes a first ventilation mat main body 111 and a second ventilation mat main body 112. Furthermore, it has a connection mat 121 that connects the first ventilation mat main body 111 and the second ventilation mat main body 112. Further, a ventilation guide 30 is connected to the first ventilation mat main body 111. Such a ventilation mat 1 is formed by the ventilation guide 30 having a fan attachment hole provided at one end and connected to a connection hole provided on the side surface of the ventilation mat main body 111 at the other end. In the first embodiment, one connection mat is used, but of course, two or more connection mats may be used. Further, although two ventilation mat bodies are used, of course there may be three or more ventilation mat bodies. Furthermore, a configuration in which there is only one ventilation mat main body and no connecting mat is considered is possible.

The main structure of the first ventilation mat main body 111 and the second ventilation mat main body 112 is a structure constituted by a plurality of tubes 11 connected in a sheet shape. This tube 11 is molded, for example, from a resin such as polyethylene, an olefin plastic elastomer, or the like. Methods for connecting the plurality of tubes 11 include a method of integrally molding the plurality of tubes 11 so that they are lined up in a sheet shape, a method of gluing a plurality of tubes 11 cut to a predetermined length, and a method of gluing the plurality of tubes 11 cut to a predetermined length. Possible methods include bonding a plurality of tubes 11 to a cloth such as a nonwoven fabric.

It is conceivable that the first ventilation mat main body 111 and the second ventilation mat main body 112 are provided with the ventilation section 13. The ventilation part 13 is a part in which slits are provided on the sides of the plurality of tubes 11 that contact the skin cover, and the sides of the plurality of tubes 11 that contact the seat cushion material are connected by a material forming the tubes. One aspect of the ventilation portion 13 is a groove provided by cutting the tube in a direction perpendicular to the direction in which the tube 11 extends. In FIG. 1, two ventilation parts 13 are provided on the first ventilation mat main body 111 and two ventilation parts 13 are provided on the second ventilation mat main body 112.

Furthermore, an airflow mixing section may be formed in the first ventilation mat main body 111 and the second ventilation mat main body 112. The airflow mixing section is provided in a portion closer to the connection section of the ventilation guide 30 than the ventilation section 13, and is provided so as to communicate between the plurality of tubes 11. For example, the airflow mixing portion may include a groove formed by cutting the tube in a direction perpendicular to the direction in which the tube 11 extends, such that a slit is provided on the seat cushion material side of the first ventilation mat body 111. It is also possible to do so. More specifically, reference can be made to the above-mentioned Patent Document 8, but no airflow mixing section is formed in this embodiment.

Although not shown in FIG. 1, a nonwoven fabric may be attached to the first ventilation mat main body 111 and the second ventilation mat main body 112. The nonwoven fabric may be attached to the surface of the first ventilation mat body 111 or the second ventilation mat body 112 on which the ventilation portion 13 is formed, or may be attached to the back surface thereof.

In the following description, the side of the ventilation mat 1 according to the first embodiment that faces the skin cover (that is, the side where the opening of the ventilation section 13 is provided) will be referred to as the front side, and the side of the ventilation mat 1 according to the first embodiment will be referred to as the front side. The side of the ventilation mat 1 facing the seat cushion material is referred to as the back side.

The connection mat 121 includes a base material having a three-dimensional structure with air permeability, and a non-breathable material that covers the periphery of the base material. This base material is, for example, a three-dimensional knitted fabric made of fibers woven three-dimensionally such as double raschel or 3D mesh sheet, a structure made of three-dimensional complex intertwining of fibers, or a foam material with open cells (sponge). , rubber tubes lined up, etc. can be used. Examples of three-dimensional knitted fabrics include Fusion (registered trademark) manufactured by Asahi Kasei Co., Ltd., Swing Net (registered trademark) manufactured by Suminoe Textile Co., Ltd., 3mesh (registered trademark) manufactured by Muller Textile Co., Ltd., and Cubic Eye (registered trademark) manufactured by Unitika Co., Ltd. etc. Examples of structures made of three-dimensionally intertwined fibers include Breath Air (registered trademark) manufactured by Toyobo Co., Ltd., and the like. As the material constituting the foam material having open cells and the rubber tube, for example, materials such as urethane, EPDM, chloroprene, isoprene, silicone, and various thermoplastic elastomers are used. These base materials may also have directionality, such as a direction in which ventilation is easy and a direction in which ventilation is difficult. For example, in the case of a three-dimensional knitted fabric, there may be a direction where the density of fibers per cross section is intermittently high (increase in number), or a direction where the density of fibers is continuously low (number of fibers is large). There are some cases in which a direction is formed that has a portion where the In this case, the lower the fiber density (fewer fibers), the easier the ventilation will be. When using a base material with such directionality, the air flow direction, which is the direction in which ventilation actually takes place, is the direction in which air flow is easier in the base material, for example, the direction in which the density of continuous fibers is lower (the number of fibers is lower). It is preferable that the direction is the same as the direction in which the area has a portion (in which the area decreases). In addition, it is made of a film-like or cloth-like material made of an impermeable material, or a material that does not allow air to pass through. For example, nonwoven fabrics, spunbond nonwoven fabrics, woven fabrics, films, and rubberized fabrics can be used. Here, the materials for the nonwoven fabric, spunbond nonwoven fabric, and woven fabric include aramid fibers, glass fibers, cellulose fibers, nylon fibers, vinylon fibers, polyester fibers, polyethylene fibers, polypropylene, polyolefin fibers, rayon fibers, and the like. Further, as the material of the film, polyethylene, polyvinyl, polypropylene, PET, various thermoplastic elastomers, etc. can be considered. Rubberized fabric is made of fibers that have been treated to make them airtight. When connecting the connecting mat 121 and the first ventilation mat main body 111, and when connecting the connecting mat 121 and the second ventilation mat main body 112, the first ventilation mat main body 111 and the second ventilation mat main body 112 are connected. In some portions, the non-breathable material is removed, the base material is exposed, and the base material and the plurality of tubes 11 are communicated to allow air circulation. As a result, ventilation is allowed to flow between the first ventilation mat main body 111, the connection mat 121, and the second ventilation mat main body 112. In addition, in the connection mat 121, it is conceivable that the non-air permeable material is formed into a tube shape whose dimension is longer than the length of the base material. Thereby, the first ventilation mat body 111 and the second ventilation mat body 112 can be fitted into the extended portions of the non-breathable material, respectively.

The connection mat 121 used has an air permeability of 2% or more. The air permeability indicates the ratio of the air flow rate when the mat is directly connected to the air source compared to the air flow rate from the air source to which nothing is connected. To measure the air flow rate with a connection mat directly connected to a ventilation source, more specifically, connect the ventilation source to one end of the connection mat where the barrier tube is open, and attach a flowmeter to the other end. Connect and measure the flow rate when the blower source is activated. In particular, it is preferable that the air permeability of the connection mat 121 is 35% or more, more preferably 40% or more. In order to provide such a connection mat 121, the air permeability of the base material is preferably 2000 cm ³ /dm ² ·min or more. If the base material has an air permeability of 2000 cm ³ /dm ² ·min or more, the connection mat 121 can have excellent air permeability. Note that air permeability is measured in the ventilation direction when actually installed as a ventilation mat, and is measured based on ISO9237, with the pressure at the time of the test being 2 hPa. If the connecting mat 121 has excellent air permeability, sufficient ventilation can be achieved between the first ventilation mat main body 111 and the second ventilation mat main body 112.

Furthermore, the compressive stress value when the amount of compression in the base material is 40% (hereinafter sometimes referred to as 40% compressive stress value) is 2 to 30 kPa. If the 40% compressive stress value is less than 2 kPa, the base material will be crushed by the tension when fixing the skin cover at the hanging part, and the first ventilation mat main body 111 and the second ventilation mat main body 112 will be crushed. There will not be enough ventilation between the If the 40% compressive stress value exceeds 30 kPa, it will be difficult to bend the base material to match the shape of the seat cushion material when fixing the skin cover at the hanging portion, resulting in problems in workability. Furthermore, the seated person may feel the connection mat, causing discomfort. In particular, the 40% compressive stress value in the base material is preferably 10 kPa or more, and preferably 20 kPa or less. Note that the 40% compressive stress value is measured in accordance with ISO3386-1.

In base materials made of three-dimensional knitted fabrics, if there are many fibers present in the ventilation paths, or if the diameters of the fibers present in the ventilation paths are large, the air permeability of the connecting mat will be low, but if the base material is compressed by 40% Stress values tend to increase. Further, the 40% compressive stress value of the base material can also be designed depending on the material of the fibers of the base material. The air permeability of the connecting mat can also be designed by the cross-sectional area and length of the connecting mat. In order to obtain the optimum air permeability of the connecting mat and the 40% compressive stress value of the base material, it is necessary to use appropriate dimensions of the connecting mat and fibers used for the base material.

Both ends of the connection mat 121 are connected to the first ventilation mat body 111 and the second ventilation mat body 112, respectively. In the ventilation mat 1 according to the first embodiment, the first ventilation mat main body 111 and the second ventilation mat main body 112 are connected to the connection mat 121 by wrapping the nonwoven fabric 12 with double-sided tape. The first ventilation mat main body 111, the second ventilation mat main body 112, and the connection mat 121 are connected so that they do not come off. At this time, if laser welding or the like is performed between these parts, a more stable connection can be achieved. As a method for connecting the first ventilation mat main body 111, the second ventilation mat main body 112, and the connection mat 121, any conventionally known method such as adhesion, adhesion, welding, sewing, etc. may be used.

The ventilation guide 30 is a tube made of a non-air permeable material, and has a ventilation passage formed therein by a base material having a three-dimensional structure with air permeability. As this base material, for example, a 3D mesh sheet made of three-dimensionally woven fibers can be used, and the same base material as the base material of the connection mat 121 can be used. In addition, the tube made of non-breathable material is a film formed into a bag shape, and resins such as polypropylene or various elastomers can be used as the film material, and the tube is made of a non-breathable material of the connection mat 121. Similar ones can be used.

An opening is provided at one end of the ventilation guide 30 so that the base material is exposed. A mold made of a plastic material is fitted into this opening to form a fan mounting hole 31. At the other end of the ventilation guide 30, the non-ventilating material is also removed to expose the base material, and this portion is connected to a connecting portion provided on the first ventilation mat main body 111. In FIG. 1 , a connecting portion between the ventilation guide 30 and the first ventilation mat main body 111 is covered with a nonwoven fabric 12 . In the ventilation mat 1 according to the first embodiment, the first ventilation mat main body 111 and Connect it to the ventilation guide 30 so that it does not come off. At this time, if the ventilation guide 30 and the first ventilation mat main body 111 are laser welded or the like, a more stable connection can be achieved. As a method for connecting the ventilation guide 30 and the first ventilation mat main body 111, any conventionally known method such as adhesion, adhesion, welding, sewing, etc. may be used. By using the nonwoven fabric with double-sided tape, it is possible to close the opening at the end of the first ventilation mat main body 111 on the ventilation guide side, thereby preventing leakage or intrusion of airflow therefrom. In other words, the nonwoven fabric 12 functions as an airflow leak prevention section that closes the openings at the ends of the plurality of tubes 11 constituting the first ventilation mat main body 111 on the ventilation guide side to prevent airflow from leaking or entering. Furthermore, in the ventilation guide 30, it is conceivable that the non-breathable material has a dimension that is longer than the length of the base material. Thereby, the first ventilation mat main body 111 can be fitted into the extended portion of the non-breathable material.

Furthermore, a ventilation section 13 is provided on the front surface side of the first ventilation mat main body 111 and the second ventilation mat main body 112. When viewed from the side, it can be seen that the ventilation portion 13 is a groove cut into the tube 11 that is open to the front side.

Further, in the first ventilation mat main body 111, the ventilation portion 13 is not formed in some of the tubes 11 located in the central portion. When this ventilation mat main body 111 is installed in a seat, it will be located on the thighs of the seated person. As a result, the central portion of the ventilation mat main body 111 is between the legs of the person sitting, and since the body is not present there, air is not blown out or sucked.

As shown in FIG. 1, the configuration of the ventilation mat 1 includes, in order from the fan side, a ventilation guide 30, a first ventilation mat body 111, a connection mat 121, and a second ventilation mat body 112. connected in a straight line. Further, the ventilation guide 30, the first ventilation mat main body 111, the connection mat 121, and the second ventilation mat main body 112 have approximately the same width. Therefore, the flow path as a whole does not suddenly become narrower or wider, and losses due to changes in flow velocity or wall friction are reduced, making it possible to achieve excellent air blowing efficiency with sufficient air volume. . Note that in the first embodiment, the width of the ventilation mat is 154 mm. The term "approximately the same width" means that the difference between the minimum width and the maximum width is approximately within 10%. Also, regarding the thickness, it is preferable that the ventilation guide 30, the first ventilation mat main body 111, the connection mat 121, and the second ventilation mat main body 112 have approximately the same thickness. The term "approximately the same thickness" means that the difference between the minimum thickness and the maximum thickness is approximately within 10%.

Next, a description will be given of how the ventilation mat 1 according to the first embodiment is incorporated into a car seat. Therefore, FIG. 2 shows a schematic diagram of an automobile seat equipped with a ventilation mat according to the first embodiment. Since the ventilation mat 1 according to the first embodiment is actually installed under the skin cover, it is mounted on the automobile seat 60 while being hidden by the skin cover. Therefore, in the schematic diagram shown in FIG. 3, the first ventilation mat main body 111 and the second ventilation mat main body 112 are placed on the seat surface 62 so that the portion of the automobile seat 60 where the ventilation mat 1 is installed can be seen. Illustrated above. Note that the ventilation guide 30 is arranged so that the fan mounting hole 31 wraps around the back side of the automobile seat 60.

As shown in FIG. 2, the automobile seat 60 has a backrest 61 and a seat surface 62. A hanging portion 63 is provided on the backrest 61 and the seat surface 62, respectively. This hanging portion 63 is a portion where the skin cover is connected to the cushion material by a hanging member. Therefore, the ventilation mat 1 according to the first embodiment is arranged so that the first ventilation mat main body 111 and the second ventilation mat main body 112 sandwich the hanging part 63, and the connecting mat 121 is connected to the hanging part. 63. Further, the ventilation mat 1 according to the first embodiment is provided on the seat surface 62, respectively. Of course, a ventilation mat may be provided on the backrest 61. Further, the ventilation mat 1 according to the first embodiment is installed such that the ventilation portion 13 is located on the side of the seated person. Although not shown in the drawings, in order to embed the first ventilation mat main body 111, the second ventilation mat main body 112, the connection mat 121, and the ventilation guide 30 in the seat cushion material constituting the seat surface 62, Recesses corresponding to these shapes are formed. The first ventilation mat main body 111, the second ventilation mat main body 112, the connection mat 121, and the ventilation guide 30 are installed so as to be fitted into this recess.

The structure near this hanging portion 63 will be explained in more detail. Therefore, FIG. 3 shows a cross-sectional view of the hanging portion of the automobile seat on which the ventilation mat according to the first embodiment is mounted, taken along line III-III in FIG. 2.

As shown in FIG. 2, the first ventilation mat main body 111 and the second ventilation mat main body 112 are provided at positions sandwiched between the cushion material 64 and the skin cover 65. Further, the first ventilation mat main body 111 and the second ventilation mat main body 112 are arranged separately so that the hanging portion 63 is sandwiched therebetween. Further, the connection mat 121 is arranged to be located in the hanging portion 63. The hanging part 63 is provided with a hanging member 66, and the skin cover 65 is connected to the cushioning material 64 so as to be pulled by the cushioning material 64. Specifically, grooves are formed in the cushioning material 64 corresponding to the locations where the hanging members 66 are attached to the skin cover 65 described above. A metal wire is embedded in the bottom of the groove as a fixing member 67. For such a cushion material 64 and skin cover 65, the hanging member 66 of the skin cover 65 is drawn into the bottom of the groove of the cushion material 64, and the hanging member 66 and fixing member 67 are fixed with a stopper 68 such as a hog ring. connected by. Preferably, the stopper 68 is placed at a location that avoids the connection mat 121. Due to the tension that draws the hanging member 66 into the bottom of the groove of the cushioning material 64, the skin cover 65 becomes taut.

Here, the ventilation mat 1 according to the first embodiment was connected to a blower source (a blower with a flow rate of 32 m ³ /h and a static pressure of 420 Pa) and placed inside a vehicle seat. Then, the air source was operated at 13.5 V to suck air, and the air volume on the seat surface was measured. The air volume was measured in two states: unseated (no person sitting) and seated (a person 172 cm tall and 67 kg in weight was seated). Furthermore, for the comparison mode, the air volume was measured in the same manner as in the first embodiment. In the comparative example, the first ventilation mat 111 and especially the second ventilation mat main body 112 are replaced with the same material as the connection mat 121, and the non-breathable material is removed from the same position as in the first embodiment. A ventilation portion 13 is formed to provide a ventilation mat having the same shape as in the first embodiment. The results of these measurements are shown in Table 1. In addition, the air blowing source was driven in the same manner as described above while the person was not seated, and the wind speed on the seat surface was measured. The wind speed was measured by dividing the seating surface into 50 sections (5 sections in the left-right direction x 10 sections in the front-rear direction) and measuring in each section. The measurement results are shown in Figure 4.

As shown in Table 1, the ventilation mat according to Embodiment 1 was able to obtain an excellent air volume compared to the comparative embodiment. Further, as shown in FIG. 4, in Embodiment 1, the maximum value, minimum value, and average value were all higher than those in the comparative example, and the difference in wind speed between sections of the seat surface was also small and there was less variation.

When incorporating the ventilation mat 1 according to the present invention into the automobile seat 60, for example, the first ventilation mat main body 111, the second ventilation mat main body 112, etc. may be fixed onto the cushion material 64 with adhesive tape or the like. is possible. In addition to this embodiment, for example, it is conceivable to form a groove in the cushion material 64 that matches the shape of the ventilation mat 1, and to fit the ventilation mat 1 into this groove. For example, when molding the cushion material 64, the first ventilation mat main body 111, the second ventilation mat main body 112, etc. are placed in a mold in advance, and the cushion material material is poured into the mold. It is also conceivable that the material of the cushioning material is then foamed and hardened. In this case, the first ventilation mat main body 111, the second ventilation mat main body 112, and the like and the cushioning material 64 are reliably fixed to prevent positional displacement. Such a construction method is common in the technical field of car seat heaters, and for example, Patent Document 5 can be referred to.

A car seat heater can also be used in conjunction with the ventilation mat according to the invention. The car seat heater will be placed between the seat skin cover and the ventilation mat. At this time, it is necessary to efficiently transfer the heat emitted from the car seat heater to the occupant, but the tubes used in ventilation mats have higher thermal conductivity than the seat cushion material, Heat tends to be lost to the tube. Therefore, when using the ventilation mat of the present invention and a car seat heater together, it is conceivable to narrow the width of the ventilation mat to make it difficult for heat to be taken away by the tube.

Note that the present invention is not limited to the above embodiments, and can be modified as appropriate without departing from the spirit.

As described in detail above, according to the ventilation mat of the present invention, it is possible to provide a sufficient amount of air and excellent air blowing efficiency. In addition to automobile seats, its uses include, for example, vehicle seats such as motorcycles and railway cars, child seats, seats of heavy machinery for civil engineering and construction, seats of ships and aircraft, seats of Ferris wheels at amusement parks, etc. , bleachers in various stadiums, viewing seats in theaters and movie theaters, benches installed in stations, theme parks, outdoor parks, etc., sofas and chairs used in homes and offices, chairs in barber shops. , Application to medical chairs used in various medical institutions is also possible. Moreover, it can be applied not only to seats but also to a wide range of applications, such as beds, strollers, and carpets.

1 Ventilation mat 11 Tube 12 Non-woven fabric 13 Ventilation part 30 Ventilation guide 31 Fan mounting hole 60 Automobile seat 61 Backrest 62 Seat surface 63 Hanging part 64 Cushioning material 65 Skin cover 66 Hanging member 67 Fixing member 68 Stopper 111 No. 1 ventilation mat body 112 2nd ventilation mat body 121 Connection mat

Claims (3)

A ventilation mat body with multiple tubes connected in a sheet shape,
It has a ventilation guide with fan mounting holes,
The ventilation mat main body is
A slit is provided on one side of the plurality of tubes so as to span the plurality of tubes, and a ventilation part is provided on the other side of the plurality of tubes and connected by a material of the tube,
The ventilation guide is
a base material having a breathable three-dimensional structure;
an air-impermeable material that covers the periphery of the base material, and the plurality of tubes and the base material are in communication so that air can circulate therein;
A ventilation mat in which the entire passages of the ventilation mat main body and the ventilation guide have approximately the same width. The ventilation mat main body includes at least a first ventilation mat main body and a second ventilation mat main body,
has a connecting mat;
The first ventilation mat main body and the second ventilation mat main body are connected via the connection mat,
The connection mat is
a base material having a breathable three-dimensional structure;
a non-breathable material that covers the periphery of the base material,
The tubes of the first ventilation mat main body, the tubes of the second ventilation mat main body, and the base material of the connection mat are in communication so that air can circulate therein,
2. The ventilation guide, the first ventilation mat main body, the connection mat, and the second ventilation mat main body are connected in a straight line, and the entire flow paths have substantially the same width. ventilation mat. A seat cushion material, a skin cover, and a ventilation mat according to claim 2,
the seat cushion material is covered with the skin cover;
A hanging portion is formed to which the seat cushion material and the skin cover are fixed,
The seat in which the ventilation mat is arranged so that the connection mat is located in the hanging part.

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