JP2020032924A - Ventilation mat and seat - Google Patents

Abstract

To provide ventilation or the like for a seated person without impact of a hanging part.SOLUTION: A ventilation mat includes plural ventilation mat bodies 111, 112 that are connected via connection mats 121, 122. The ventilation mat bodies 111, 112 include a first substrate having a three-dimensional structure with air permeability, whereas the connection mats 121, 122 include a second substrate having the three-dimensional structure with air permeability, and a barrier tube covering the periphery of the second substrate. In the ventilation mat, the first substrate and the second substrate are communicating so that air can circulate, and an air permeation rate of the connection mats 121, 122 is 2% or higher, and further, when a compression amount in the substrates is 40%, a compression stress value is 2-30 kPa. In a seat, the ventilation mat is disposed so that the connection mats are positioned on a hanging part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to, for example, a seat installed in an automobile or the like and a ventilation mat used for the seat, and particularly to a seat that can be configured to be suitable for blowing air through the seat.

  For example, when a user sits on a seat of an automobile or the like for a long period of time particularly under a condition of high ambient temperature and humidity, the surface of the seat and a human body contact portion may have "humidity" or "stickiness". Since this "humidity" and "stickiness" cause a loss of comfort of the occupant, various countermeasures against such a problem have been conventionally studied.

  As one of such studies, for example, proposals such as Patent Documents 1 and 2 have been made by the patent applicant. In particular, FIGS. 7 and 14 of Patent Document 1 show schematic cross-sectional views of a seat in which a blower is incorporated, in which wind sent from a blower such as a blower passes through a tubular ventilation path. Then, a mode is disclosed in which the air is blown out from the air outlet to blow air to a seated person. This blowing eliminates the “humidity” and “stickiness” of the seated person. Further, as related techniques, for example, Patent Documents 3 to 6 are also cited.

Patent No. 4999455: Kurabe Patent No. 5430085: Kurabe JP 2007-84039 A: Bridgestone JP 2017-71368 A: Bridgestone Patent No. 4107073: Matsushita Electric Industrial Japanese Patent No. 4125721: W.C. E. FIG. T.

  Here, a suspension portion for fixing the skin cover to the seat cushion material is formed particularly in the vehicle seat. As the structure of the suspension portion, a suspension member is formed on the skin cover, a fixing member is formed by embedding a wire or the like in the seat cushion material, and the suspension member and the fixing member are connected by a stopper such as a hog ring. By stopping, the skin cover and the seat cushion material are connected. The suspension member is formed of a material such as a resin plate or a non-woven fabric band, and the suspension member of the skin cover is pulled into the fixing member of the seat cushion material with strong tension so that the skin is not loosened and wrinkles do not occur. And locked. Therefore, at the position of the suspension portion, the ventilation path is greatly curved toward the seat cushion material, and is sandwiched between the suspension member and the fixing member. Thus, in the conventional blower, in the hanging portion, the ventilation of the ventilation path is hindered, and it is difficult to send air to the tip of the hanging portion or to suck air from the tip of the hanging portion. there were.

  The present invention has been made in order to solve such problems of the related art, and an object of the present invention is to provide a ventilation mat capable of blowing air to a seated person without the influence of a hanging portion. It is in.

To achieve the above object, a ventilation mat according to the present invention has a plurality of ventilation mat bodies and a connection mat, and the plurality of ventilation mat bodies are connected via the connection mat, The ventilation mat body includes a first base material having a three-dimensional structure with air permeability, a side barrier covering an outer periphery of the first base material, and the first base material is surrounded by the side barrier. The connection mat includes a second base material having a three-dimensional structure with air permeability, and a barrier tube covering a periphery of the second base material, The base material and the second base material are communicated with each other so that air can be circulated, the air permeability of the connection mat is 2% or more, and the compression amount of the second base material is 40%. Compressive stress value Ventilation mat is 2~30kPa.
Further, it is conceivable that the ventilation mat body and the connection mat are fixed by sewing.
The seat according to the present invention includes a seat cushion material, a skin cover, and the ventilation mat, wherein the seat cushion material is covered by the skin cover, and the seat cushion material and the skin cover are fixed. And the ventilation mat is arranged such that the connection mat is positioned on the suspension.
Things.

  According to the ventilation mat of the present invention, sufficient ventilation is performed even in the hanging portion, so that even in a seat having the hanging portion, air is blown to a seated person and air is sucked from the seated person. be able to.

FIG. 3 is a plan view showing one surface of a ventilation mat used in the present invention. It is a top view which shows the other surface of the ventilation mat used by this invention. 1 is a schematic view of an automobile seat on which a ventilation mat of the present invention is mounted. It is sectional drawing of the suspension part of the sheet | seat for motor vehicles which mounts the ventilation mat of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The ventilation mat described below is provided on at least one of a seat surface and a backrest of an automobile seat. Further, the ventilation mat according to the present invention is installed so as to be sandwiched between a cushion material of an automobile seat and a skin cover covering the cushion material. Further, a fan is provided on the ventilation mat, and the fan sucks air from the ventilation mat or flows air into the ventilation mat.

  In the following description, in a state where the ventilation mat is installed on the vehicle seat, the surface located on the skin cover side, that is, the seat surface side is referred to as the front surface, and the surface located on the cushion material side of the vehicle seat is referred to as the back surface.

  FIG. 1 shows a schematic diagram of a ventilation mat 1 according to the first embodiment. FIG. 1 shows a top view and a bottom view of the ventilation mat 1. The top view shows the configuration on the front side of the ventilation mat 1 according to the first embodiment, and the bottom view shows the configuration on the back side of the ventilation mat 1 according to the first embodiment.

  As shown in FIG. 1, the ventilation mat 1 according to the first embodiment has a first ventilation mat body 111 and a second ventilation mat body 112. Further, it has connection mats 121 and 122 for connecting the first ventilation mat body 111 and the second ventilation mat body 112. In the first embodiment, two connection mats are used, but of course, one connection mat or three or more connection mats may be used. Also, two ventilation mat bodies are used, but of course, two or more ventilation mat bodies may be used.

  As shown in FIG. 1, the ventilation mat 1 according to the first embodiment may have a ventilation guide 30. In such a ventilation mat 1, the ventilation guide 30 is formed by providing a fan mounting hole at one end and connecting the other end to a connection hole provided on a side surface of the ventilation mat body 111.

  The first ventilation mat main body 111 and the second ventilation mat main body 112 include, for example, a first base material (for example, a spacer 13), a side barrier 11, a permeable cover 12, a connection belt 14, and an opening surface 15. Something to prepare is conceivable. The spacer 13 is a sheet having a breathable three-dimensional structure. The spacer 13 is, for example, a 3D mesh sheet in which fibers are three-dimensionally knitted. When cutting out the 3D mesh sheet into a predetermined shape, it is preferable to process the sheet by laser fusing. Thereby, it is possible to prevent the occurrence of fiber scraps due to fraying of the end face.

  The side barrier 11 has lower air permeability than the air permeable cover 12, and covers the outer periphery of the spacer 13 other than the connection part to which the connection mat 121, the connection mat 122 and the ventilation guide 30 are connected. The side barrier 11 covers the outer periphery of the spacer 13 by being bonded to the spacer 13 with, for example, an adhesive or an adhesive, or sewn or welded to the spacer 13. In particular, sewing is preferable because the adhesive strength does not decrease due to thermal or temporal effects.

  The air permeable cover 12 is formed of cloth, has air permeability as a whole, and covers the surface of the spacer 13. The area where the air permeable cover 12 covers the spacer 13 is a region of the surface of the spacer 13 that is not covered with the side barrier 11.

  For example, the breathable cover 12 is preferably made of a fiber material such as a nonwoven fabric and has high air permeability. On the other hand, for the side barrier 11, a material having lower air permeability than the air permeable cover 12 is selected. As the side barrier 11, for example, a nonwoven fabric, a spunbonded nonwoven fabric, a woven fabric, a film, and a rubberized fabric can be used. Here, as the material of the nonwoven fabric, the spunbonded nonwoven fabric and the woven fabric, aramid fiber, glass fiber, cellulose fiber, nylon fiber, vinylon fiber polyester fiber, polyethylene fiber, polypropylene, polyolefin fiber, rayon fiber and the like can be considered. In addition, as the material of the film, polyethylene, polyvinyl, polypropylene, pet, and the like can be considered. The rubberized cloth is processed to give airtightness to the fiber.

  In addition, on the back surfaces of the first ventilation mat body 111 and the second ventilation mat body 112, no air permeable cover 12 is provided, and a portion surrounded by the side barrier 11 is an opening surface 15. . That is, the spacer 13 is exposed on the opening surface 15. In addition, it is conceivable that a connecting belt 14 that connects the side barriers 11 on both sides across the opening surface 15 is provided on the back surfaces of the first ventilation mat body 111 and the second ventilation mat body 112. The connection belt 14 stabilizes the shapes of the first ventilation mat main body 111 and the second ventilation mat main body 112.

  Each of the connection mats 121 and 122 includes a second base material (for example, spacers 22 and 23) having a three-dimensional structure with air permeability, and a barrier tube that covers the periphery of the base material. The second base material (for example, the spacers 22 and 23) is, for example, a three-dimensional knitted fabric in which fibers such as a double Russell or a 3D mesh sheet are three-dimensionally knitted, or a structure in which fibers are intricately intertwined in a three-dimensional shape. A body, a foam material (sponge) having open cells, a rubber tube arranged, or the like can be used. Examples of the three-dimensional knitted fabric include Fusion (registered trademark) manufactured by Asahi Kasei Corporation, Swingnet (registered trademark) manufactured by Sumie Textile, 3mesh (registered trademark) manufactured by Muller Textile, and Cubic Eye (registered trademark) manufactured by Unitika. And the like. Examples of the structure in which the fibers are intertwined in a three-dimensional manner include Breathair (registered trademark) manufactured by Toyobo. As a material constituting a foam material or a rubber tube having open cells, for example, materials such as urethane, EPDM, chloroprene, isoprene, silicone, and various thermoplastic elastomers are used. It is also conceivable that the second base material has a 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, the direction in which the density of fibers per section increases (the number of fibers increases) intermittently or the density of fibers continuously decreases (number of fibers) There is a case in which a direction having a portion is formed. In this case, the lower the fiber density (the smaller the number), the easier the ventilation. When the second substrate having such a directionality is used, the direction of air flow, which is the direction in which air is actually ventilated, is the direction in which the second substrate is easily ventilated, for example, continuous fibers. It is preferable that the direction is the same as the direction having a portion where the density is low (the number of lines is low). The same material as the side barrier 11 can be used for the barrier tube. For example, a nonwoven fabric, a spunbonded nonwoven fabric, a woven fabric, a film, and a rubberized fabric can be used. Here, as the material of the nonwoven fabric, the spunbonded nonwoven fabric and the woven fabric, aramid fiber, glass fiber, cellulose fiber, nylon fiber, vinylon fiber polyester fiber, polyethylene fiber, polypropylene, polyolefin fiber, rayon fiber and the like can be considered. In addition, as the material of the film, polyethylene, polyvinyl, polypropylene, PET, various thermoplastic elastomers and the like can be considered. The rubberized cloth is processed to give airtightness to the fiber. The second base member is communicated with the first base member so as to be able to circulate air, so that the first ventilation mat body 111, the connection mat 121, the connection mat 122, and the second ventilation mat Air is ventilated between the main bodies 112.

The connection mats 121 and 122 have an air permeability of 2% or more. The air permeability indicates the ratio of the air flow rate when the connection mat is directly connected to the air supply source to the air flow rate from the air supply source to which nothing is connected. Regarding the measurement of the air flow rate with the connection mat directly connected to the air supply source, more specifically, connect the air supply source to one end of the connection mat where the barrier tube is open, and connect the flow meter to the other end. Connect and measure the flow rate when the air source is activated. In particular, the air permeability of the connection mats 121 and 122 is preferably 35% or more, and more preferably 40% or more. In order to form such connection mats 121 and 122, it is preferable that the air permeability of the second base material is 2000 cm ³ / dm ² min or more. If the second base material has air permeability of 2000 cm ³ / dm ² · min or more, the air permeability of the connection mats 121 and 122 can be excellent. In addition, the air permeability is measured in the ventilation direction when actually installed as a ventilation mat, and is measured in accordance with ISO 9237 with a test pressure of 2 hPa. If the air permeability of the connection mats 121 and 122 is excellent, the ventilation between the first ventilation mat body 111 and the second ventilation mat body 112 can be made sufficient.

  The compressive stress value when the amount of compression in the second base material is 40% (hereinafter sometimes referred to as a 40% compressive stress value) is 2 to 30 kPa. If the 40% compressive stress value is less than 2 kPa, the base material is crushed by the tension at the time of fixing the skin cover at the suspension portion, and the first ventilation mat body 111 and the second ventilation mat body 112 are crushed. The ventilation between them is not sufficient. If the 40% compressive stress value exceeds 30 kPa, it becomes difficult to bend the base material in accordance with the shape of the seat cushion material when fixing the skin cover with the suspension portion, which causes a problem in workability. In addition, the seated person may feel the connection mat and cause a sense of discomfort. In particular, the 40% compressive stress value of the substrate is preferably 10 kPa or more, and more preferably 20 kPa or less. In addition, the 40% compressive stress value is measured based on ISO3386-1.

  In a base material or the like made of a three-dimensional knitted fabric, when there are many fibers present in the ventilation path, and when the diameter of the fibers present in the ventilation path is large, the air permeability of the connection mat is low, but the base material is compressed by 40%. Stress values tend to be higher. Further, the 40% compressive stress value of the base material can be designed according to the fiber material of the base material. The air permeability of the connection mat can also be designed according to the cross-sectional area and length of the connection mat. In order to obtain the optimum air permeability of the connection mat and the 40% compressive stress value of the substrate, it is necessary to use an appropriate one for the dimensions of the connection mat and the fibers used for the substrate.

  Both ends of the connection mats 121 and 122 are inserted into connection holes provided in the side barrier 11. In FIG. 1, connection portions between the connection mats 121 and 122 and the first ventilation mat body 111 and the second ventilation mat body 112 are connection portions 25 to 28.

  The ventilation guide 30 is a non-breathable tube, and a ventilation path is formed inside the third base material (for example, the spacer 32) having a three-dimensional structure with breathability. As the spacer 32, the same material as the first base material, for example, a 3D mesh sheet in which fibers are three-dimensionally knitted can be used.

  An opening is provided at one end of the ventilation guide 30 so that the spacer 32 is exposed. The opening is fitted with a mold formed of a plastic material, and forms a fan mounting hole 31. The other end of the ventilation guide 30 is inserted into a connection hole provided in the side barrier 11. In FIG. 1, a connection portion between the ventilation guide 30 and the ventilation mat body 10 is a connection portion 33.

  Here, the shape of the spacer 13 and the like will be described in more detail. FIG. 2 is a diagram illustrating the shape of a substrate (for example, a spacer) of the ventilation mat according to the first embodiment. FIG. 2 shows a first example and a second example of the shapes of the spacers 13, 22, 23, and 32. As shown in FIG. 2, the spacers 13, 22, 23, 32 are formed as separate components. In the first example, notches 13a, 13b, and 13c are provided in the first ventilation mat body 111, and notches 13d and 13e are provided in the second ventilation mat body 112. On the other hand, the shape of the side of the spacer 32 of the ventilation guide 30 that is inserted into the first ventilation mat body 111 has the same width as the portion covered with the bag-shaped non-air permeable tube. The portion to be inserted into the notch 13a is exposed in the covered state. The shape of the side of the spacers 22 and 23 of the connection mats 121 and 122 that is inserted into the first ventilation mat main body 111 and the second ventilation mat main body 112 has the same width as the portion covered with the barrier tube. However, portions to be inserted into the cutouts 13b to 13e with the barrier tube covered are exposed. The notch portions 13a to 13e of the first ventilation mat body 111 and the second ventilation mat serve as connection portions for connecting the ventilation guide 30, the connection mat 121, and the connection mat 122. By forming the spacers 22, 23, and 32 in such a shape, it is possible to increase the member use efficiency when the spacers 22, 23, and 32 are cut out from the original 3D mesh sheet material.

  In the second example, the ends of the spacers 22, 23, and 32 on the connection hole side protrude from the ventilation guide 30, the connection mat 121, or the connection mat 122, and have a width greater than that of the ventilation guide 30, the connection mat 121, or the connection mat 122. The widening prevention parts 22a, 23a and 32a are also formed. In the vicinity of the connection hole of the spacer 13, cutout portions 13a to 13e having shapes corresponding to the shapes of the stopper portions 22a, 23a, and 32a are provided. When assembling the ventilation mat 1, the side barrier 11 is provided on the outer periphery of the spacer 13 in a state where the detachment preventing portions 22a, 23a, and 32a are fitted into the cutout portions 13a to 13e. As a result, since the slip-off preventing portions 22a, 23a, and 32a are suppressed by the side barrier 11, the ventilation guide 30, the connection mat 121, and the connection mat 122 are separated from the first ventilation mat body 111 or the second ventilation mat body 112. The ventilation mat main body 111, the second ventilation mat main body 112, the connection mat 121, the connection mat 122, and the ventilation guide 30 are integrally formed. The connection of the ventilation mat body 111, the second ventilation mat body 112, the connection mat 121, the connection mat 122, and the ventilation guide 30 may be made by any conventionally known method such as adhesion, adhesion, sewing, and welding. Not limited.

  Subsequently, a mode of incorporating the ventilation mat 1 according to the first embodiment into an automobile seat will be described. Therefore, FIG. 3 shows a schematic view of an automobile seat on which the ventilation mat 1 according to the first embodiment is mounted. Since the ventilation mat 1 according to the first embodiment is actually installed under the skin cover, the ventilation mat 1 is mounted on the automobile seat 60 while being hidden by the skin cover. Therefore, in the schematic diagram shown in FIG. 3, a portion where the ventilation mat 1 is installed in the vehicle seat 60 is shown by a hatched pattern. Note that the ventilation guide 30 is arranged such that the fan mounting hole 31 goes around the back surface of the vehicle seat 60.

  As shown in FIG. 3, the vehicle seat 60 has a backrest 61 and a seat surface 62. And, the backrest 61 and the seating surface 62 are respectively provided with hanging portions 63. The 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 configured such that the first ventilation mat body 111 and the second ventilation mat body 112 sandwich the hanging portion 63, and the connection mat 121 and the connection mat 122. Are arranged so as to be located in the hanging portion 63. Further, the ventilation mat 1 according to the first embodiment is provided on the backrest 61 and the seating surface 62, respectively.

  The structure near the hanging portion 63 will be described in more detail. FIG. 4 is a cross-sectional view of the suspension portion of the vehicle seat on which the ventilation mat according to the first embodiment is mounted, taken along line IV-IV of FIG.

  As shown in FIG. 4, 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 separately arranged so as to sandwich the hanging portion 63. In addition, the connection mat 121 and the connection mat 122 are arranged so as to be located in the hanging portion 63. The suspension portion 63 is provided with a suspension member 66, and the suspension member 66 connects the skin cover 65 to the cushion member 64 such that the skin cover 65 is pulled by the cushion member 64. Specifically, a groove is formed in the cushion material 64 at a position where the hanging member 66 is attached to the skin cover 65 described above. Then, a metal wire is embedded as a fixing member 67 at the bottom of the groove. With respect to the cushion member 64 and the skin cover 65, the suspension member 66 of the skin cover 65 is drawn into the bottom of the groove of the cushion member 64, and the suspension member 66 and the fixing member 67 are fixed by a stopper 68 such as a hog ring. Linked by The stopper 68 is disposed at a position avoiding the connection mats 121 and 122. Due to the tension that pulls the suspension member 66 into the bottom of the groove of the cushion material 64, the skin cover 65 is in a tight state.

Here, those having different dimensions of the connection mat and the type of the second base material were prepared, and ventilation mats were prepared according to the above-described embodiment, and Examples 1 to 9 were made. In Examples 1, 2, 7, and 8, the second base material made of the same kind of three-dimensional knitted fabric is used. In Examples 3, 4, 5, and 6, the second base materials made of different types of three-dimensional knitted fabrics are used. In the ninth embodiment, the second base material made of the urethane foam resin having continuous pores is used. The ventilation mats according to Examples 1 to 9 were connected to an air supply source (a blower having a flow rate of 44.8 m ³ / h and a static pressure of 275 Pa) and arranged in a vehicle seat. At that time, the workability of assembling the suspension was confirmed. In addition, in a state where the ventilation mats according to Examples 1 to 9 are arranged in the vehicle seat, the measurer sits down to check the feeling of the hanging portion, and the air source is set to 12 V so as to suck air. It was confirmed whether or not the second ventilation mat body 112 felt a refreshing feeling due to the suction of air. Table 1 shows the workability, feel, and refreshing feeling together with the details of the connection mat of each embodiment. Regarding the evaluations of workability, feel, and refreshing sensation shown in Table 1, those which were excellent were evaluated as ○, those which had no practical problems but were somewhat insufficient were evaluated as △, and those which had practical problems were evaluated as ×.

  As shown in Table 1, in any of the ventilation mats of Examples 1 to 9, there is no problem in practical use in terms of the workability of assembling the hanging portion, the feel of the hanging portion, and the refreshing feeling by suction of air. there were. In particular, in the case of the first and second embodiments, the hanging portion was easy to assemble, there was no sense of incongruity in the hanging portion, and sufficient air suction was felt even from the portion farthest from the air supply source. . In the case of Example 3, the connection mat was slightly crushed by the pressure of the hanging portion, and the suction air volume was slightly reduced. In the case of Example 4, although not as great as in Example 3, slight collapse of the connection mat was observed. Although the air according to Example 5 was sufficiently sucked in air, it was slightly inferior to Example 1. In the case of the sixth embodiment, a little force was required for assembling the hanging portion, and the seat had a different feeling from the other embodiments even when seated. However, since the hanging portion has a stronger feeling of the seam due to the fact that the hanging member is attached to the seam of the skin cover, it did not feel uncomfortable. Those according to Examples 7 to 9 felt that the suction air volume was small as compared with the other examples.

  As described above, in the ventilation mat 1 according to the first embodiment, the air permeability of the connection mat is 2% or more, and the compression stress value when the compression amount is 40% is 2 to 30 kPa. Therefore, the ventilation between the first ventilation mat body 111 and the second ventilation mat body 112 can be made sufficient. This sufficient ventilation can be maintained even when tension is applied when fixing the skin cover with the hanging portion. Furthermore, when fixing the skin cover with the hanging portion, the second base member can be bent in accordance with the shape of the seat cushion material, so that there is no problem in workability at the time of assembling the seat.

  As the first base material used for the ventilation mat body, one having the same air permeability and compressive stress value as the second base material may be used. In addition, since the connection mat is disposed in the hanging portion in a bent state, in actual use, the connection mat is more difficult to ventilate than the ventilation mat body. It is conceivable that the second base material has better air permeability than the first base material in order to level the overall air permeability. In addition, the second base member is disposed on the hanging portion as a connection mat, whereas the first base member is disposed as a ventilation mat body at a position where a seated person actually sits. From this, since the first base material is required to be flexible, it is conceivable that the second base material has a lower compressive stress value than the first base material.

  In addition, since the ventilation mat 1 according to the first embodiment is formed by combining parts having simple shapes, the material use efficiency of the components of the ventilation mat 1 is high (for example, disposal in one material). High ratio of available material to material). That is, by increasing the utilization efficiency of the material, the ventilation mat 1 according to the first embodiment can reduce the manufacturing cost.

  When incorporating the ventilation mats 1 to 4 according to the present invention into the automobile seat 60, for example, the first ventilation mat body 111, the second ventilation mat body 112, etc. are fixed on the cushion material 64 with an adhesive tape or the like. It is possible to do. In addition to such an aspect, for example, when molding the cushion material 64, the first ventilation mat body 111, the second ventilation mat body 112, and the like are arranged in a molding die in advance, and the cushion is placed there. It is also conceivable to foam and harden the cushioning material after pouring the material. In this case, the first ventilation mat main body 111, the second ventilation mat main body 112, and the like, and the cushion material 64 are securely fixed, so that positional displacement can be prevented. Such a construction method is common in the technical field of car seat heaters, and for example, Patent Document 5 and the like can be referred to.

  It should be noted that the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the gist.

  As described in detail above, according to the ventilation mat of the present invention, it is possible to blow air to the occupant without the influence of the hanging portion. As the application, in addition to the seats of automobiles, for example, vehicle seats such as motorcycles and railway cars may be used, child seats, seats of heavy equipment for civil engineering construction, seats of ships and aircraft, seats of ferris wheel at amusement parks. , Seats for various stadiums, seats for appreciation in theaters and movie theaters, benches installed in stations, theme parks, outdoor parks, etc., sofas and seating chairs used in homes and offices, barber chairs Application to medical chairs used in various medical institutions is also conceivable. In addition to a seat, it can be widely applied to, for example, a bed and a stroller.

DESCRIPTION OF SYMBOLS 1 Ventilation mat 11 Side barrier 12 Breathable cover 13 Spacer 13a-e Notch part 14 Connection belt 15 Opening surface 22, 23 Spacer 25-28 Connection part 30 Ventilation guide 31 Fan mounting hole 32 Spacer 32a Removal prevention part 33 Connection part Reference Signs List 60 automobile seat 61 backrest 62 seating surface 63 suspension portion 64 cushion material 65 skin cover 66 suspension member 67 fixing member 68 stopper 111 first ventilation mat body 112 second ventilation mat body 121, 122 connection mat

Claims (3)

With multiple ventilation mat bodies,
Having a connection mat,
The plurality of ventilation mat bodies are connected via the connection mat,
The ventilation mat body,
A first substrate having a three-dimensional structure with air permeability;
A side barrier covering the outer periphery of the first base material;
Having an opening surface surrounded by the side barrier and exposing the first base material;
The connection mat is
A second substrate having a breathable three-dimensional structure,
A barrier tube covering the periphery of the second substrate,
The first base material and the second base material are communicated with each other so that air circulation is possible,
The air permeability of the connection mat is 2% or more,
A ventilation mat having a compression stress value of 2 to 30 kPa when a compression amount of the second base material is set to 40%. The ventilation mat according to claim 1, wherein the ventilation mat body and the connection mat are fixed by sewing. It has a seat cushion material, a skin cover, and the ventilation mat according to claim 1 or 2,
The seat cushion material is covered by the skin cover,
A hanging portion to which the seat cushion material and the skin cover are fixed is formed,
A seat on which the ventilation mat is arranged such that the connection mat is located on the hanging portion.

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