JP7122281B2 - vehicle seat - Google Patents

Description

The present invention relates to vehicle seats.

BACKGROUND ART As a seat installed in a vehicle such as an automobile, an air-conditioned seat is known which includes an air channel provided inside a cushion pad and a fan for sending air into the air channel, and blows air from the surface of the seat through the pad. (See Patent Documents 1 and 2, for example).

JP 2003-165325 A JP 2012-105816 A

In the seat described in Patent Document 1, the air flow path is formed by the cushion pad. In this case, the cushion pad may be deformed by the weight of the occupant, and the deformation of the cushion pad may collapse the air flow path and block the blowing of air.

On the other hand, in the sheet described in Patent Document 2, the air flow path is formed by a duct made of a tubular member made of resin. In this case, the air flow path is maintained even if the passenger's weight is applied. However, the presence of a duct-like rigid chamber inside the cushion pad may compromise sitting comfort. For example, in a seat cushion, when an occupant puts his/her weight on either the left or right side, one side of the chamber sinks, but the other side of the chamber floats due to the rigidity of the chamber, and the other side of the occupant is pushed up by the chamber. There is fear.

SUMMARY OF THE INVENTION The present invention has been made in view of the circumstances described above, and an object of the present invention is to improve the sitting comfort of a vehicle seat provided with a chamber for air conditioning.

A vehicle seat according to one aspect of the present invention includes a pad covering at least the surface side of the seat, a chamber for circulating air blown out from the surface of the seat through the pad, a fan for sending air into the chamber, and the a support that supports the chamber so as to be able to sink in the direction in which the load applied to the surface of the sheet acts, wherein the chamber includes a plate-shaped first member arranged on the surface side of the seat and the chamber arranged on the back side of the seat. a second member which forms an air circulation space between itself and the first member and is more flexible than the first member; a first region arranged on one side in the width direction of the sheet; and a second region arranged on the other side in the width direction, wherein the first region and the second region are flexurally deformable independently of each other in the direction in which the load acts.
A vehicle seat according to one aspect of the present invention includes a pad covering at least the surface side of the seat, a chamber for circulating air blown out from the surface of the seat through the pad, a fan for sending air into the chamber, and the a support that supports the chamber so as to be able to sink in the direction in which the load applied to the surface of the sheet acts, wherein the chamber includes a plate-shaped first member arranged on the surface side of the seat and the chamber arranged on the back side of the seat. A second member formed of a sheet material having elasticity and forming an air circulation space between the first member, a first region arranged on one side in the seat width direction, and a seat width and a second region disposed on the other side of the direction, wherein the first region and the second region are independently flexurally deformable in the direction in which the load acts, and the second member are fixed to the ends of the first member on both sides in the sheet width direction.

A vehicle seat according to one aspect of the present invention includes a pad covering at least the surface side of the seat cushion, a chamber for circulating air blown out from the surface of the seat cushion through the pad, and a fan for sending air to the chamber. and a support body that supports the chamber so as to be able to sink in the direction in which the load applied to the surface of the seat cushion acts, wherein the chamber comprises a plate-like first member arranged on the seat surface side, and the seat back surface. a second member arranged on the side, forming an air circulation space with the first member and formed more flexibly than the first member; a front region arranged in the front portion of the seat cushion; a rear region arranged at the rear portion of the seat cushion, wherein the front region and the rear region are independently flexurally deformable in the direction in which the load acts.
A vehicle seat according to one aspect of the present invention includes a pad covering at least the surface side of the seat cushion, a chamber for circulating air blown out from the surface of the seat cushion through the pad, and a fan for sending air into the chamber. and a support body that supports the chamber so as to be able to sink in the direction in which the load applied to the surface of the seat cushion acts, wherein the chamber comprises a plate-like first member arranged on the seat surface side, and the seat back surface. a second member disposed on the side, forming an air circulation space between the first member and the first member, and made of a sheet material having elasticity; a front region disposed in the front portion of the seat cushion; and a rear region arranged at the rear portion of the cushion, wherein the front region and the rear region are independently flexurally deformable in the direction in which the load acts, and the seat width direction of the second member. The ends on both sides are fixed to the ends on both sides in the seat width direction of the first member.

A vehicle seat according to one aspect of the present invention includes a pad covering at least the seat back surface side, a chamber for circulating air blown out from the surface of the seat back through the pad, and a fan for sending air into the chamber. and a support that supports the chamber so as to be able to sink in the direction in which the load applied to the surface of the seat back acts, wherein the chamber comprises a plate-shaped first member arranged on the seat surface side, and a seat back surface. a second member disposed on the side of the seatback, forming an air circulation space between the first member and the second member and formed to be more flexible than the first member; an upper region disposed on the upper portion of the seatback; and a lower region arranged at a lower portion, wherein the upper region and the lower region are independently flexurally deformable in the direction in which the load acts.
A vehicle seat according to one aspect of the present invention includes a pad covering at least the seat back surface side, a chamber for circulating air blown out from the surface of the seat back through the pad, and a fan for sending air into the chamber. and a support that supports the chamber so as to be able to sink in the direction in which the load applied to the surface of the seat back acts, wherein the chamber comprises a plate-shaped first member arranged on the seat surface side, and a seat back surface. A second member disposed on the side of the seatback, forming an air circulation space between itself and the first member, and made of an elastic sheet material; an upper region disposed on the upper portion of the seatback; and a lower portion of the seatback. The upper region and the lower region are independently flexurally deformable in the direction in which the load acts, and the ends on both sides of the second member in the seat width direction The portions are fixed to the ends of the first member on both sides in the sheet width direction.

ADVANTAGE OF THE INVENTION According to this invention, the seating comfort of the vehicle seat provided with the chamber for air conditioning can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS It is sectional drawing of an example of the seat cushion of a vehicle seat for describing embodiment of this invention. 2 is a perspective view of an example of the chamber of FIG. 1; FIG. FIG. 3 is a cross-sectional view of the chamber of FIG. 2 taken along line III-III. FIG. 4 is an enlarged view of a portion of the chamber in FIG. 3 surrounded by a dashed frame IV. FIG. 3 is a cross-sectional view illustrating the action of the chamber of FIG. 2; FIG. 2 is a schematic diagram of a modification of the seat of FIG. 1; 2 is a perspective view of another example of the chamber of FIG. 1; FIG. 2 is a perspective view of another example of the chamber of FIG. 1; FIG. 2 is a cross-sectional view of another example of the chamber of FIG. 1; FIG. 1 is a perspective view of a chamber provided in a seat back of a vehicle seat for describing an embodiment of the present invention; FIG. FIG. 11 is a cross-sectional view of the chamber of FIG. 10 taken along line XI-XI;

FIG. 1 shows an example of a vehicle seat for describing an embodiment of the present invention.

A vehicle seat (hereinafter also simply referred to as a seat) 1 shown in FIG. 1 is a seat installed in a vehicle such as an automobile. The seat 1 includes a seat cushion 2 that supports the buttocks and thighs of an occupant seated on the seat, and a seat back (not shown) that supports the lumbar and back of the occupant.

The seat cushion 2 includes a pad 21 made of foam material such as urethane foam, a chamber 4 , a fan 5 for sending air into the chamber 4 , and a frame 22 supporting the pad 21 and the chamber 4 . The air sent into the chamber 4 by the fan 5 circulates inside the chamber 4 and is blown out from the surface of the seat cushion 2 through the pad 21 covering the seat cushion surface side of the chamber 4 . By blowing air from the surface of the seat cushion 2, the temperature and humidity of the surface of the seat cushion 2 in contact with the occupant are adjusted. The pad 21 is covered with a trim cover made of, for example, leather, woven fabric, non-woven fabric, or knitted fabric. When the trim cover is made of leather, the trim cover is provided with a large number of ventilation holes. Ventilation of the trim cover is provided.

The frame 22 includes a pair of side frames (not shown), a front frame 23 and a rear frame 24 connecting the pair of side frames, and a plurality of springs 25 spanning between the front frame 23 and the rear frame 24. have. The spring 25 is formed by bending a metal wire member into a wavy and planar shape. The chamber 4 has a front region 4f arranged at the front of the seat cushion for supporting the thighs of the occupant, and a rear region 4r arranged at the rear of the seat cushion for supporting the buttocks of the occupant. The front frame 23 is arranged below the front region 4 f of the chamber 4 , and the spring 25 is arranged below the rear region 4 r of the chamber 4 .

The rear surface of the chamber 4 opposite to the seat cushion front surface is covered with a pad 21 . A front region 4 f of the chamber 4 is supported by a front frame 23 via pads 21 covering the rear surface of the chamber 4 . A rear region 4 r of the chamber 4 is supported by a spring 25 via a pad 21 covering the rear surface of the chamber 4 . When an occupant's load is applied to the seat cushion 2, the front region 4f of the chamber 4 sinks with the pad 21 being compressed. The rear region 4r of the chamber 4 sinks with the compression of the pad 21 and the deflection of the spring 25. As shown in FIG. From the viewpoint of suppressing an increase in the thickness of the seat cushion 2 due to the installation of the chamber 4, it is preferable that the rear surface of the rear region 4r of the chamber 4 is exposed.

In the example shown in FIG. 1, a part of the back surface of the chamber 4 is exposed, and the fan 5 is directly attached to the exposed back surface of the chamber 4, but the mounting location of the fan 5 is not particularly limited. The fan 5 may be connected to the chamber 4 via tubes, in which case the fan 5 may be attached to the front frame 23 or the rear frame 24, for example.

2 and 3 show an example of the chamber 4. FIG.

The chamber 4 shown in FIGS. 2 and 3 has a first member 40 arranged on the front side of the seat cushion and a second member 41 arranged on the back side of the seat cushion. The first member 40 and the second member 41 are plate-like members made of a resin material such as polypropylene. The first member 40 and the second member 41 are combined to form an air circulation space between the first member 40 and the second member 41 .

A plurality of air blow holes 42 are provided in the first member 40 arranged on the surface side of the seat cushion. The air flowing through the circulation space is blown out from the blowing hole 42 and then blown out from the surface of the seat cushion 2 through the pad 21 covering the seat cushion surface side of the chamber 4 .

At least one of the first member 40 and the second member 41 is provided with a boss so that the circulation space is maintained even when the load of the occupant is applied to the seat cushion 2. In the example shown in FIGS. A plurality of bosses 43 are provided on the first member 40 on the surface side of the seat cushion. The boss 43 protrudes from the first member 40 in the direction in which the first member 40 and the second member 41 face each other, and the communication space is maintained by the boss 43 coming into contact with the second member 41 .

A rear region 4r of the chamber 4 is provided with a first region 4a arranged on one side in the seat width direction and a second region 4b arranged on the other side in the seat width direction. The first region 4a is positioned below the occupant's left buttocks, the second region 4b is positioned below the occupant's right buttocks, and the first region 4a and the second region 4b are positioned in the front and rear of the seat so as to follow the occupant's buttocks. The substantially central portion in the direction is curved in a concave shape that is lowered with respect to both end portions. The first region 4a and the second region 4b are configured to be flexibly deformable downward, which is the direction in which the load of the occupant acts on the seat cushion 2, independently of each other.

First, the first member 40 on the seat cushion surface side is provided with slits 44 to 46 extending in the seat front-rear direction at intervals in the seat width direction. The slits 44 and 45 sandwich the first region 4a in the sheet width direction, and the slits 45 and 46 sandwich the second region 4b in the sheet width direction. Although the slits 45 are commonly used for the pair of first slits sandwiching the first region 4a and the pair of second slits sandwiching the second region 4b, they may be different.

The second member 41 on the back side of the seat cushion is more flexible than the first member 40 . As shown in FIG. 4, the outer surface of the second member 41 is formed with a large number of grooves 55 extending in the seat front-rear direction at intervals in the seat width direction. It is Even if the second member 41 is formed to be more flexible than the first member 40 by making the second member 41 relatively thin or by making the second member 41 from a relatively flexible resin material, good.

Slits 48 are provided at both ends 47 of the first member 40 in the sheet width direction, and both ends 49 of the second member 41 in the sheet width direction are inserted into the slits 48 . The end portion 49 of the second member 41 inserted into the slit 48 is engaged with the end portion 47 of the first member 40 so as to be displaceable relative to the end portion 47 of the first member 40 in the sheet width direction.

FIG. 5 shows the action of chamber 4 .

In the example shown in FIG. 5 , the occupant puts his or her weight on the left buttock, and the occupant's load is mainly input to the first area 4 a in the rear area 4 r of the chamber 4 . A load input to the first region 4 a is transmitted to the second member 41 via the boss 43 of the first member 40 . Based on the load transmitted to the second member 41, the end portion 49 on the side of the first region 4a among the end portions 49 on both sides in the seat width direction of the second member 41 is pulled toward the center in the seat width direction. By pulling in the end 49 of the second member 41 on the side of the first region 4a, the second member 41 sinks downward in the first region 4a, and the first member 40 also sinks downward in the first region 4a. . The second region 4b separated from the first region 4a by the slit 45 of the first member 40 is not dragged by the sinking of the first region 4a, and the first region 4a is independent of the second region 4b. bends.

In this manner, since the first region 4a and the second region 4b can be flexurally deformed independently of each other, the second region 4b is prevented from rising in association with the sinking of the first region 4a, and the right buttock of the occupant. is also suppressed from being pushed up by the second region 4b. Thereby, the sitting comfort of the seat 1 is enhanced.

In the above example, a plurality of springs 25 are arranged below the chamber 4, and the chamber 4 is supported by the springs 25 so as to be able to sink downward. Not limited. For example, as shown in FIG. 6, a plurality of springs 27 may be hung between a pair of side frames 26 and the chamber 4, and the chamber 4 may be suspended by the springs 27. 4 can be supported.

7 to 9 show other examples of the chamber 4, respectively.

In the example shown in FIG. 7, the front region 4f and the rear region 4r of the chamber 4 are configured to be flexibly deformable downward, which is the direction in which the load of the occupant acts on the seat cushion 2, independently of each other.

The first member 40 on the front side of the seat cushion is provided with slits 50 to 52 extending in the seat width direction at intervals in the seat front-rear direction. The slits 50 and 51 sandwich the front region 4f in the sheet front-rear direction, and the slits 51 and 52 sandwich the rear region 4r in the sheet width direction.

The second member 41 on the back side of the seat cushion is more flexible than the first member 40 . Both ends of the second member 41 in the seat front-rear direction are displaceable in the seat front-rear direction with respect to both ends of the first member 40 in the seat front-rear direction. engaged in the part.

For example, when an occupant puts his or her weight on the buttocks and the load of the occupant is input mainly to the rear region 4r of the chamber 4, the load input to the rear region 4r is transmitted through the boss 43 of the first member 40 to the first member. The force is transmitted to the second member 41, and the end portion of the second member 41 on the side of the rear region 4r among the end portions on both sides in the seat front-rear direction is pulled toward the center in the seat width direction. Thereby, the second member 41 sinks downward in the rear region 4r, and the first member 40 also sinks downward in the rear region 4r. The front region 4f separated from the rear region 4r by the slits 51 of the first member 40 is not dragged by the sinking of the rear region 4r, and the rear region 4r bends independently of the front region 4f. .

Since the front region 4f and the rear region 4r can be flexurally deformed independently of each other, the front region 4f is prevented from rising in conjunction with the sinking of the rear region 4r. It is also suppressed to be pushed up by Thereby, the sitting comfort of the seat 1 is enhanced.

In the example shown in FIG. 8, similarly to the example shown in FIG. 7, the front region 4f and the rear region 4r of the chamber 4 are configured to be flexurally deformable independently of each other. 3, the first region 4a and the second region 4b in the rear region 4r are configured to be flexurally deformable independently of each other.

In the example shown in FIG. 9, the second member 41 is made of an elastic and airtight sheet material. Such a sheet material is, for example, a sheet material made of a rubber material such as chloroprene rubber. For example, when an occupant puts his or her weight on the left buttocks and the load of the occupant is input mainly to the first region 4a of the chamber 4, the load input to the first region 4a may cause the boss 43 of the first member 40 to move. The second member 41 sinks downward in the first region 4a due to its stretchability. The first member 40 also sinks downward in the first region 4a and the first region 4a of the chamber 4 flexes independently of the second region 4b. Since the second member 41 bends based on its stretchability, the end 49 of the second member 41 in the seat width direction can be fixed to the end 47 of the first member 40 in the seat width direction, and the structure of the chamber 4 can be improved. It can be simple.

Although the case where the chamber 4 is provided in the seat cushion 2 has been described so far, the chamber may be provided in the seat back 3 of the seat 1 as shown in FIGS. 10 and 11 .

At least the seat back surface side of the chamber 6 provided in the seat back 3 is covered with a pad made of foam material such as urethane foam. In addition, the back surface of the chamber 6 opposite to the front surface of the seat back is supported by a support such as a spring. It is possible to sink behind the seat, which is the direction of action.

The chamber 6 has a first member 60 arranged on the seat back surface side and a second member 61 arranged on the seat back rear surface side. The first member 60 and the second member 61 are plate-shaped members made of a resin material such as polypropylene. The first member 60 and the second member 61 are combined to form an air circulation space between the first member 60 and the second member 61 . The first member 60 is provided with a plurality of blowing holes 62 serving as outlets for the air flowing through the circulation space. In addition, a boss 63 is provided on at least one of the first member 60 and the second member 61 so that the circulation space is maintained even when the load of the occupant's upper body is applied to the seat back 3, as shown in FIG. In the example, a plurality of bosses 63 are provided on the first member 60 on the seat back surface side.

A lower region 6l of the chamber 6 located behind the waist of the occupant is provided with a first region 6a arranged on one side in the seat width direction and a second region 6b arranged on the other side in the seat width direction. It is The first area 6a is located behind the occupant's left hip and the second area 6b is located behind the occupant's right hip. The first region 6a and the second region 6b are configured to be independently flexibly deformable rearward of the seat, which is the direction in which the load of the upper body of the occupant on the seat back 3 acts.

First, the first member 60 of the chamber 6 on the seat back surface side is provided with vertically extending slits 64 to 66 spaced apart in the seat width direction. The slits 64 and 65 sandwich the first area 6a in the sheet width direction, and the slits 65 and 66 sandwich the second area 6b in the sheet width direction.

The second member 61 on the back side of the seatback is more flexible than the first member 60 . Slits 68 are provided at both ends 67 in the sheet width direction of the first member 60 , and both ends 69 in the sheet width direction of the second member 61 are inserted into the slits 68 . The end portion 69 of the second member 61 inserted into the slit 68 is engaged with the end portion 67 of the first member 60 so as to be displaceable with respect to the end portion 67 of the first member 60 in the sheet width direction.

For example, when the occupant puts his or her weight on the left waist and the load on the occupant's upper body is input mainly to the first area 6a in the lower area 6l of the chamber 6, the load input to the first area 6a It is transmitted to the second member 61 via the boss 63 of the first member 60 . Based on the load transmitted to the second member 61, the end portion 69 on the side of the first region 6a among the end portions 69 on both sides in the seat width direction of the second member 61 is pulled toward the center in the seat width direction. As a result, the second member 61 sinks to the rear of the seat in the first region 6a, and the first member 60 also sinks to the rear of the seat in the first region 6a. The second region 6b separated from the first region 6a by the slit 65 of the first member 60 is not dragged by the sinking of the first region 6a, and the first region 6a is independent of the second region 6b. bends.

In this manner, since the first region 6a and the second region 6b can be flexurally deformed independently of each other, the second region 6b is prevented from rising in conjunction with the sinking of the first region 6a, and the right hip of the occupant is suppressed. is also suppressed from being pushed out by the second region 6b. Thereby, the sitting comfort of the seat 1 is enhanced.

In addition, the lower region 6l (the first region 6a and the second region 6b) of the chamber 6 and the upper region 6u of the chamber 6 as a third region arranged adjacent to the lower region 6l are independent of each other, It may be configured to be flexurally deformable in the direction in which the load acts. In this case, the first member 60 is provided with a pair of slits sandwiching the lower region 6l in the sheet vertical direction and a pair of slits sandwiching the upper region 6u in the sheet vertical direction.

Further, the second member 61 may be an elastic and airtight sheet material. In this case, since the second member 61 bends due to its stretchability, the end of the second member 61 can be fixed to the end of the first member 60, and the structure of the chamber 6 can be simplified.

Although the present invention has been described above using a seat installed in a vehicle such as an automobile as an example, the present invention can also be applied to a seat for a vehicle other than a vehicle such as a ship or an aircraft.

As described above, the vehicle seat disclosed in this specification is covered with a pad at least on the seat surface side. a fan for blowing air; and a support for supporting the chamber so as to be able to sink in the direction in which the load applied to the surface of the sheet acts; and the chamber is arranged on one side in the width direction of the sheet. and a second region arranged on the other side in the seat width direction, and the first region and the second region are independently flexurally deformable in the direction in which the load acts.

Further, in the vehicle seat disclosed in the present specification, the chamber is arranged between a plate-like first member arranged on the front surface side of the seat and the first member arranged on the back surface side of the seat so that air can flow. a second member forming a flow space, wherein the first member includes a pair of first slits provided across the first region in the sheet width direction, and the second region in the sheet width direction. and a pair of second slits sandwiched between the two slits.

Further, in the vehicle seat disclosed in this specification, the second member is a plate-like member that is more flexible than the first member, and both ends in the seat width direction of the second member It engages with both ends of the first member in the seat width direction so as to be displaceable in the seat width direction with respect to the ends of the first member on both sides in the seat width direction.

Further, in the vehicle seat disclosed in this specification, the second member is a stretchable sheet material, and both ends of the second member in the seat width direction extend along the seat width of the first member. It is affixed to the ends on both sides of the direction.

Also, the vehicle seat disclosed herein further includes a third region in which the chamber is arranged adjacent to the first region and the second region, wherein the first region and the second region The region and the third region are independently flexurally deformable in the direction in which the load acts.

Further, the vehicle seat disclosed in this specification includes a pad covering at least the surface side of the seat cushion, a chamber for circulating air blown out from the surface of the seat cushion through the pad, and a chamber for supplying air to the chamber. and a support body that supports the chamber so as to be able to sink in the direction in which the load applied to the surface of the seat cushion acts. a rear region arranged at the rear of the cushion, wherein the front region and the rear region are independently flexurally deformable in the direction of action of the load.

In addition, the vehicle seat disclosed in the present invention has a pad covering at least the surface side of the seat back, a chamber for circulating air blown out from the surface of the seat back through the pad, and a chamber for sending the air into the chamber. a fan; and a support that supports the chamber so as to be able to sink in the direction in which the load applied to the surface of the seat back acts. and a lower region disposed thereon, wherein the upper region and the lower region are flexurally deformable in the direction in which the load acts independently of each other.

1 Vehicle Seat 2 Seat Cushion 3 Seat Back 4 Chamber 4a First Region 4b Second Region 4f Front Region 4r Rear Region 5 Fan 6 Chamber 6a First Region 6b Second Region 6l Lower Region 6u Upper Region 21 Pad 25 Spring 27 spring 40 first member 41 second member 44 slit 45 slit 46 slit 50 slit 51 slit 52 slit 60 first member 61 second member 64 slit 65 slit 66 slit

Claims (7)

a chamber having at least the surface side of the seat covered with a pad and circulating air blown out from the surface of the seat through the pad;
a fan that forces air into the chamber;
a support that supports the chamber so as to be able to sink in the direction in which the load applied to the surface of the sheet acts;
with
The chamber is
a plate-like first member arranged on the seat surface side;
a second member arranged on the back side of the seat, forming an air circulation space between itself and the first member, and formed more flexibly than the first member;
a first region arranged on one side in the seat width direction;
a second region arranged on the other side in the seat width direction;
has
The vehicle seat, wherein the first region and the second region are independently flexurally deformable in the direction in which the load acts. A vehicle seat according to claim 1 ,
The second member is a plate member,
Both ends in the sheet width direction of the second member are displaceable in the sheet width direction with respect to both ends in the sheet width direction of the first member. Engaging vehicle seat. a chamber having at least the surface side of the seat cushion covered with a pad and circulating air blown out from the surface of the seat cushion through the pad;
a fan that forces air into the chamber;
a support that supports the chamber so as to be able to sink in the direction in which the load applied to the surface of the seat cushion is applied;
with
The chamber is
a plate-like first member arranged on the seat surface side;
a second member disposed on the back side of the seat, forming an air circulation space with the first member, and formed more flexibly than the first member;
a front region positioned in front of the seat cushion;
a rear region located behind the seat cushion;
has
The vehicle seat, wherein the front region and the rear region are independently flexurally deformable in the direction in which the load acts. a chamber having at least the surface side of the seat back covered with a pad and circulating air blown out from the surface of the seat back through the pad;
a fan that forces air into the chamber;
a support that supports the chamber so as to be able to sink in the direction in which the load applied to the surface of the seat back is applied;
with
The chamber is
a plate-like first member arranged on the seat surface side;
a second member disposed on the back side of the seat, forming an air circulation space with the first member, and formed more flexibly than the first member;
an upper region positioned above the seat back;
a lower area located under the seat back;
has
The vehicle seat, wherein the upper region and the lower region are independently flexurally deformable in the direction in which the load acts. a chamber having at least the surface side of the seat covered with a pad and circulating air blown out from the surface of the seat through the pad;
a fan that forces air into the chamber;
a support that supports the chamber so as to be able to sink in the direction in which the load applied to the surface of the sheet acts;
with
The chamber is
a plate-like first member arranged on the seat surface side;
a second member disposed on the back side of the seat, forming an air circulation space between itself and the first member, and made of a sheet material having elasticity;
a first region arranged on one side in the seat width direction;
a second region arranged on the other side in the seat width direction;
has
The first region and the second region are independently flexurally deformable in the direction in which the load acts,
The vehicle seat, wherein both ends of the second member in the seat width direction are fixed to both ends of the first member in the seat width direction. a chamber having at least the surface side of the seat cushion covered with a pad and circulating air blown out from the surface of the seat cushion through the pad;
a fan that forces air into the chamber;
a support that supports the chamber so as to be able to sink in the direction in which the load applied to the surface of the seat cushion is applied;
with
The chamber is
a plate-like first member arranged on the seat surface side;
a second member disposed on the back side of the seat, forming an air circulation space between itself and the first member, and made of a sheet material having elasticity;
a front region positioned in front of the seat cushion;
a rear region located behind the seat cushion;
has
The front region and the rear region are independently flexurally deformable in the direction in which the load acts ,
The vehicle seat , wherein both ends of the second member in the seat width direction are fixed to both ends of the first member in the seat width direction . a chamber covered with a pad at least on the surface side of the seat back and circulating air blown out from the surface of the seat back through the pad;
a fan that forces air into the chamber;
a support that supports the chamber so as to be able to sink in the direction in which the load applied to the surface of the seat back is applied;
with
The chamber is
a plate-like first member arranged on the seat surface side;
a second member disposed on the back side of the seat, forming an air circulation space between itself and the first member, and made of a sheet material having elasticity;
an upper region positioned above the seat back;
a lower area located under the seat back;
has
The upper region and the lower region are independently flexurally deformable in the direction in which the load acts ,
The vehicle seat , wherein both ends of the second member in the seat width direction are fixed to both ends of the first member in the seat width direction .

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