JP6642097B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat. More specifically, the present invention relates to a vehicle seat having a seat frame and a planar support member stretched over the seat frame to support a occupant's body.

  2. Description of the Related Art Conventionally, there has been known a vehicle seat in which a planar support member for supporting a seat pad from the back side is bridged in a frame assembled in a frame shape of a seat cushion (Patent Document 1). The planar support member includes a flexible planar body, and a pair of left and right support wires passed in the front-rear direction along left and right edges of the planar body. Each of the supporting wires has its front and rear edges attached to and fixed to each of the front and rear frame frames of the seat cushion. With the configuration described above, the sheet-like body is bridged to the frame of the seat cushion as being pulled from both left and right sides by the pair of left and right support wires.

Japanese Patent No. 5476941

  In the above-described conventional technology, it is necessary to provide each support wire supporting the planar body with both rigidity capable of applying an appropriate tensioning force to the planar body and flexibility not causing a feeling of bottoming in ride comfort. There is. However, it is difficult to make such a compatible adjustment, and it is not possible to set an optimum support pressure for each part in the planar support member in accordance with the body pressure distribution of the occupant. The present invention has been conceived to solve the above problems, and the problem to be solved by the present invention is to partially change the support pressure of the planar support member according to the body pressure distribution of the seated person. To be able to do it.

  In order to solve the above problems, the vehicle seat of the present invention employs the following measures.

A first invention is a vehicle seat having a seat frame and a planar support member stretched on the seat frame to support a occupant's body. Planar support member, the seat width direction relative to the seat frame is stretched in a vertical direction orthogonal to the plane-like body of the flexible properties, assembled on the edge of at least one side in the orthogonal direction of the planar member And a support member attached to the seat frame. Among the support areas in the seat width direction supported by the support member of the planar body, when the body pressure of the occupant is applied to the planar body, the body pressure is locally increased when the body pressure is locally applied. An opening is formed in a high tensile stress region that receives a tensile stress in the direction to release a supporting force received from the supporting member.

  According to the first aspect, when the body pressure of the occupant is applied to the planar body, the action of the tensile stress applied to the support member through the planar body is increased from the high body pressure region of the planar body. In the high tensile stress region where the tensile stress is applied in the orthogonal direction, the transmission to the support member is released and relaxed by the opening formed in the region. Therefore, the support pressure in the vicinity of the high body pressure region of the seated occupant in the orthogonal direction can be partially and appropriately reduced without weakening the support pressure at both edges in the seat width direction of the planar support member. .

  According to a second aspect of the present invention, in the configuration of the first aspect described above, the following configuration is provided. The support member is configured to be passed through a cylindrical through portion formed on at least one edge in the orthogonal direction of the planar body in the sheet width direction and to be attached to the seat frame. The opening is formed in a portion corresponding to the high tensile stress region of the through portion so as to open in a direction opposite to the direction of the action of the tensile stress, so that the supporting force received from the supporting member is released.

  According to the second aspect, the main body portion of the planar body is formed by a simple configuration in which an opening is formed in a part of the through-hole on the edge side through which the supporting member of the planar body is passed so as to open to the edge side. The supporting pressure of the planar body can be partially and appropriately reduced without impairing the structural strength of the sheet.

  According to a third aspect, in the second aspect, the following configuration is provided. The opening has a shape cut out in a rounded shape from the side where the through portion is opened.

  According to the third aspect, the opening can be configured to be difficult to be broken or broken even when an excessive tensile stress is applied to the planar body.

  According to a fourth aspect, in any one of the first to third aspects described above, the following configuration is provided. The planar support member is configured to be stretched in the front-rear direction with respect to the seat cushion frame constituting the seat frame and to support the body of the occupant from below. The high body pressure region is set as a region where the ischial tubercle of the seated person in the planar body is located.

  According to the fourth aspect, the supporting pressure in the vicinity of the high body pressure region where the seated person's ischial tuberosity in the seat cushion is located can be appropriately moderated.

  According to a fifth aspect, in the fourth aspect, the following configuration is provided. The opening is formed in a region arranged in the front-rear direction with the high body pressure region of the planar body.

  According to the fifth aspect, the action of the tensile stress that is applied straight in the front-rear direction from the high body pressure region of the planar body toward the support member is formed in the region arranged in the front-rear direction with the high body pressure region. The opening can appropriately alleviate the problem.

  According to a sixth aspect, in the third to fifth aspects described above, the following configuration is provided. An opening is formed by attaching a support member to at least the rear edge of the planar body.

  According to the sixth aspect, the opening is formed at the rear edge of the planar body close to the ischial tubercle of the seated person, so that the support pressure in the vicinity of the high body pressure region can be more appropriately alleviated. Can be.

  According to a seventh aspect, in the sixth aspect, the following configuration is provided. An opening is formed by assembling the support member at each of the front and rear edges of the planar body, and the opening formed at the rear edge of the opening is formed at the front edge. The opening has a wider opening width in the sheet width direction.

  According to the seventh aspect, the opening is formed at each of the front and rear edges of the planar body, so that the supporting pressure in the vicinity of the high body pressure region where the sciatic tuberosity of the seated person is located is more appropriately alleviated. can do. In particular, since the rear opening close to the ischial tuberosity of the seated person has a larger opening width than the front opening, the supporting pressure in the vicinity of the high body pressure region can be more appropriately alleviated.

  According to an eighth aspect, in the seventh aspect, the following configuration is provided. The openings and the high body pressure regions formed in the front and rear edges of the planar body are arranged in a straight line in the front-rear direction.

  According to the eighth aspect, the supporting pressure in the vicinity of the high body pressure region is increased by the openings formed in the front and rear edges of the planar body so as to sandwich the high body pressure region straight from the front and rear sides. Can be moderated appropriately.

  According to a ninth invention, in any one of the first to eighth inventions described above, the ninth invention has the following configuration. The planar body is made of a fabric material processed into a cloth having a uniform structure.

  According to the ninth aspect, even when a general fabric material having a uniform structure is applied as the planar body, the support pressure of the planar support member is partially simplified according to the body pressure distribution of the occupant. Can be changed to

FIG. 1 is a perspective view illustrating a schematic configuration of a vehicle seat according to a first embodiment. It is an exploded perspective view of a seat cushion. FIG. 4 is an enlarged perspective view illustrating a state where the planar support member is assembled to a seat cushion frame. FIG. 4 is a sectional view taken along line IV-IV of FIG. 1. FIG. 4 is a perspective view illustrating a schematic configuration of another embodiment in a form corresponding to FIG. 3.

  An embodiment for carrying out the present invention will be described below with reference to the drawings.

  First, the configuration of the seat 1 (vehicle seat) according to the first embodiment will be described with reference to FIGS. As shown in FIG. 1, the seat 1 of the present embodiment is configured as a right seat of an automobile, and includes a seatback 2 serving as a backrest portion of a seated person and a seat cushion 3 serving as a seating portion. It has a configuration. The above-mentioned seat back 2 has its left and right sides at the lower end connected to and supported by the left and right sides at the rear end of the seat cushion 3. The seat cushion 3 is connected to the floor of the vehicle via a pair of left and right slide rails 4. By the connection via these slide rails 4, the seat 1 can adjust the position in the front-back direction on the floor.

  The seat cushion 3 is connected to the slide rails 4 by a pair of left and right front links 5A and rear links 5B via a seat lifter 5 constituting a four-bar linkage. Have been. By the connection via the seat lifter 5, the seat 1 can also adjust the position in the height direction on the floor.

  As shown in FIG. 2, the above-mentioned seat cushion 3 has a metal cushion frame 3F assembled into a substantially rectangular frame shape in a plan view, which constitutes an internal skeleton thereof, and a foam attached to an upper portion of the cushion frame 3F. It is roughly constituted by a cushion pad 3P made of urethane, and a cushion cover 3C made of cloth which is put on the cushion pad 3P from above and forms the appearance design surface of the seat cushion 3. Further, in the rectangular frame of the cushion frame 3F, a planar support member 10 that functions to support the central region of the cushion pad 3P mounted on the upper portion widely from below is bridged. Here, the above-described cushion frame 3F corresponds to the "seat frame" and the "seat cushion frame" of the present invention.

  The above-described cushion frame 3F includes a pair of left and right side frames 3Fa made of a long steel plate in the front-rear direction, a front panel 3Fb made of a steel plate integrally bridged between front ends of the side frames 3Fa, and each side. The front pipe 3Fc provided between the front portions of the frames 3Fa and the rear pipe 3Fd provided between the rear portions of the side frames 3Fa are formed into a substantially square frame shape in plan view. It has a configuration.

  The above-described front pipe 3Fc is configured as a connecting rod that integrally connects the connecting shafts that connect the pair of left and right front links 5A that constitute the above-described seat lifter 5 to the respective side frames 3Fa so as to be axially rotatable. ing. The rear pipe 3Fd is configured as a connecting rod that integrally connects the connecting shafts that connect the pair of left and right rear links 5B that constitute the above-described seat lifter 5 to the respective side frames 3Fa so that they can rotate. ing. The front pipe 3Fc and the rear pipe 3Fd are configured to rotate around the respective side frames 3Fa with the link movement of the front link 5A and the rear link 5B with the operation of the seat lifter 5, respectively.

  The cushion pad 3P is assembled so as to straddle the rectangular frame of the cushion frame 3F described above. By the above-described assembly, the cushion pad 3P is strongly supported from below by the respective frame portions of the cushion frame 3F, and the central portion of the cushion pad 3P is lowered by the planar support member 10 bridged in the frame of the cushion frame 3F. When the seat is widely supported from the side, the load received from the buttocks and thighs of the seated person can be elastically and stably supported (see FIG. 4).

  The cushion cover 3C is placed on the cushion pad 3P set on the cushion frame 3F described above from above, and the front, rear, left and right peripheral portions thereof are drawn into the lower portion of the cushion frame 3F and fixed. Is provided. By the above-described assembly, the cushion cover 3C holds the cushion pad 3P in a state where the cushion pad 3P is fixed on the cushion frame 3F by the tension caused by the extension.

  Further, as shown in FIGS. 2 and 3, the planar support member 10 is assembled to a planar body 11 made of a fabric material and having a substantially rectangular shape in a plan view, and to the front and rear edges of the planar body 11. And the front and rear wires 12 and 13 made of a steel wire. Here, each of the wires 12 and 13 described above corresponds to the “support member” of the present invention. In the above-described planar support member 10, the front and rear wires 12, 13 attached to the front and rear edges of the planar body 11 are connected between the front portions of the side frames 3Fa of the cushion frame 3F. The front pipe 3Fc provided in the form of a bridge and the rear pipe 3Fd provided in the form of a bridge between the rear portions are respectively hooked and fixed, thereby being bridged as being stretched between them. .

  By the above assembly, the planar support member 10 is hooked so that the wires 12 and 13 can release the rotation of the shafts even if the front pipe 3Fc and the rear pipe 3Fd rotate with the operation of the seat lifter 5. As a result, it is maintained in a cross-linked state in a fixed posture between them.

  The planar body 11 is formed of one fabric material having high tensile performance capable of receiving a load of a seated person. Specifically, the planar body 11 may be a woven fabric (a knitted fabric) having a uniform structure in which the weft is made of a PET resin having a low extensibility and the warp is made of a PTT resin which is more extensible than the weft. ). As shown in FIG. 3, the above-described planar body 11 is provided with through portions 11 </ b> A and 11 </ b> B which are folded back to the front side (upper side in the drawing) and woven in a tubular shape at respective front and rear edges. ing. Each of the through portions 11A and 11B is formed at each of the front and rear edges of the planar body 11 so as to be divided into two right and left portions that leave a central portion in the sheet width direction. In other words, the through portions 11A, 11B are not formed in the respective front and rear edges of the sheet body 11 in a cylindrical shape that is uniformly continuous over the entire area in the sheet width direction. It is divided into two parts having openings 11Aa and 11Ba that are cut out at the center part in the sheet width direction so as to be opened in the upper direction and the front-rear direction so as to divide the cylindrical shape in the middle.

  In addition, each of the through portions 11A and 11B has a half-moon round shape near the center of each of the tubular regions divided into two on the left and right sides from the outer edge side (front side or rear side) in the front-rear direction. The openings 11Ab and 11Bb are cut out in the shape of a circle. These openings 11Ab and 11Bb are formed in the through-portions 11A and 11B so as to be open on the outer edge side (front side or rear side) in the up-down direction and the front-rear direction, respectively. Each of the openings 11Bb formed in the left and right through portions 11B on the rear side is formed so that the opening width W in the sheet width direction is wider than each of the openings 11Ab formed in the left and right through portions 11A on the front side. Have been.

  The front and rear openings 11Ab and 11Bb are pulled in the front-rear direction from the left and right high body pressure areas PA where the seated ischium tuber is located when the seated pressure of the seated person is applied to the planar body 11. Each of the through portions 11A and 11B subjected to the action of stress is formed at a portion corresponding to a high tensile stress region. Specifically, each of the openings 11Ab and 11Bb includes a line segment L1 connecting the front and rear openings 11Ab and 11Bb formed in the right region, and each of the front and rear openings formed in the left region. A line segment L2 connecting 11Ab and 11Bb is formed at a location where the line segment L2 passes over the left and right high body pressure regions PA. More specifically, each of the openings 11Ab and 11Bb includes front and rear openings 11Ab and 11Bb formed in the right region and front and rear openings 11Ab and 11Bb formed in the left region. The left and right high body pressure regions PA are arranged so as to be aligned in the front-rear direction with respect to each other.

  On the other hand, the respective wires 12 and 13 are respectively formed in the respective regions formed separately at the right and left two places of the corresponding through portions 11A and 11B formed at the respective front and rear edges of the planar body 11 described above. It is configured to have a pair of left and right configurations that are individually passed and assembled. Specifically, a pair of left and right wires 12 and 13 on the front and rear sides are respectively arranged in two regions on the left and right sides of the corresponding through portions 11A and 11B of the sheet body 11 in the sheet width direction. And the hook portions 12B and 13B extending in an arch-like shape from the both end portions of each of the insertion portions 12A and 13A to the front side or the rear side in an arched shape. I have. Each of the above-mentioned pair of left and right rear wires 13 has a shape in which the respective ends that extend to the rear of the above-described hook portions 13B are connected to each other. With the above configuration, each of the rear wires 13 is formed in an endless loop shape.

  The pair of left and right wires 12 and 13 on the front and rear sides are not dropped off by hooks 12B and 13B corresponding to the front pipe 3Fc or the rear pipe 3Fd from above. It is in an assembled state. The above-mentioned hook portions 12B, 13B are coated with resin coating materials 12C, 13C on their outer peripheral surfaces. With the above-described configuration, each hook portion 12B, 13B is protected so that abnormal noise does not occur at the contact portion with the corresponding front pipe 3Fc or rear pipe 3Fd to be hooked.

  The planar body 11 through which the wires 12 and 13 on the front and rear sides pass is inserted into the insertion portion of each wire 12 and 13 in each area in the sheet width direction through which the insertion portions 12A and 13A of these wires 12 and 13 pass. 12A and 13A receive a strong supporting force from the front and rear sides, so that the load of the occupant can be strongly received, that is, a structure capable of exhibiting a high supporting pressure. However, the through portions 11A and 11B on the front and rear sides of the planar body 11 through which the insertion portions 12A and 13A of the wires 12 and 13 pass are provided at the center of each of the two divided regions on the left and right. The openings 11Ab and 11Bb described above are formed. With the above configuration, the support pressure in the vicinity of the high body pressure region PA on the left and right of the planar body 11 is appropriately reduced.

  Specifically, when the seating pressure of the occupant is applied to the planar body 11, the insertion portions 12A and 13A of the wires 12 and 13 passed through the planar portions 11 and into the through portions 11A and 11B, respectively. The opening portion 11Ab formed in the high tensile stress region of each of the through portions 11A and 11B subjected to the tensile stress effect from the high body pressure region PA of the planar body 11 exerts the tensile stress in the front-rear direction. , 11Bb allow the transmission of the wires 12, 13 to the insertion portions 12A, 13A to escape and be alleviated. Therefore, even if each of the wires 12 and 13 is made to have a large supporting rigidity and a large diameter so that the supporting pressure other than the high body pressure region PA can be appropriately strengthened, the supporting pressure of the high body pressure region PA can be easily reduced. Can be adjusted to be able to.

  The openings 11Ab, 11Bb for exposing the insertion portions 12A, 13A of the wires 12, 13 to the outside are provided in the through portions 11A, 11B formed on the front and rear edges of the planar body 11 as described above. Is formed so that the insertion portions 12A and 13A of the wires 12 and 13 exposed to the outside from the openings 11Ab and 11Bb can be attached by hooking equipment such as a wire harness (not shown). Will be able to function as.

To summarize the above, the sheet 1 of the present embodiment has the following configuration. That is, it is a vehicle seat (seat 1) having a seat frame (cushion frame 3F) and a planar support member (plane support member 10) stretched on the seat frame and supporting the body of the occupant. Planar support member, the seat width direction relative to the seat frame is stretched in a vertical orthogonal direction (fore-and-aft direction), the flexible properties of the planar body (planar member 11), the orthogonal planar member And supporting members (wires 12, 13) attached to at least one edge (edges on both sides) in the direction and attached to the seat frame. Among the support areas in the seat width direction supported by the support member of the planar body, a high body pressure area (high body) where the body pressure is locally increased when the body pressure of the occupant is applied to the planar body Openings (openings 11Ab, 11Bb) are formed in the high tensile stress area which receives the action of the tensile stress in the orthogonal direction from the pressure area PA) to release the support force received from the support member. With such a configuration, when the body pressure of the occupant is applied to the planar body, the action of the tensile stress applied to the support member through the planar body is caused by the high body pressure region of the planar body. In the high tensile stress region where the tensile stress acts in the orthogonal direction from above, the transmission to the support member is released and relaxed by the opening formed in the region. Therefore, the support pressure in the vicinity of the high body pressure region of the seated occupant can be appropriately moderated partially in the orthogonal direction without weakening the support pressure at the edges on both sides in the seat width direction of the planar support member. .

  Further, the support members (wires 12 and 13) are cylindrical through-holes (through-holes) formed on at least one edge (edges on both sides) in the orthogonal direction of the planar body (plane body 11). 11A, 11B), and is attached to a seat frame (cushion frame 3F) through the seat width direction. A configuration in which openings (openings 11Ab, 11Bb) are formed so as to open in a direction opposite to a direction in which a tensile stress acts at a portion corresponding to a high tensile stress region of a through portion, and release a supporting force received from a support member. It has been. With this configuration, a simple configuration in which an opening is formed in the form of an opening on the edge side in a part of the through portion on the edge side through which the support member of the sheet is passed, The support pressure of the planar body can be appropriately moderated partially without impairing the structural strength of the main body.

  Further, the openings (openings 11Ab, 11Bb) are cut into a round shape from the side where the through portions (through portions 11A, 11B) are opened. With such a configuration, the opening can be configured to be difficult to be broken or broken even when an excessive tensile stress is applied to the planar body (planar body 11).

  The planar support member (planar support member 10) is stretched in the front-rear direction with respect to a seat cushion frame (cushion frame 3F) constituting the seat frame to support the body of the occupant from below. ing. The high body pressure region (high body pressure region PA) is set as a region in the planar body (plane body 11) where the ischial tubercle of the seated person is located. With such a configuration, the support pressure in the vicinity of the high body pressure region where the seated ischium tuber of the occupant is located in the seat cushion (seat cushion 3) can be appropriately moderated partially.

  Further, the openings (openings 11Ab, 11Bb) are formed in a region aligned in the front-rear direction with the high body pressure region (high body pressure region PA) of the planar body (plane body 11). With such a configuration, the action of the tensile stress that is applied straight in the front-rear direction from the high body pressure region of the planar body toward the support members (wires 12 and 13) is applied to the high body pressure region. The openings can be appropriately alleviated by the openings formed in the regions arranged in the front-rear direction.

  The supporting members (wires 12, 13) are attached to at least the rear edge of the planar body (planar body 11) to form openings (openings 11Ab, 11Bb). With such a configuration, an opening is formed at the rear edge of the planar body near the sciatic tuberosity of the seated person, and thereby the vicinity of the high body pressure region (high body pressure region PA) is formed. The supporting pressure can be more appropriately alleviated.

  Support members (wires 12 and 13) are respectively attached to the front and rear edges of the planar body (plane body 11) to form openings (openings 11Ab and 11Bb). The opening formed in the rear edge portion has a wider opening width in the sheet width direction than the opening formed in the portion. With such a configuration, an opening is formed at each of the front and rear edges of the planar body, so that a high body pressure region (high body pressure region PA) in which the sciatic nodule of the seated person is located The supporting pressure in the vicinity can be more appropriately alleviated. In particular, since the rear opening close to the ischial tuberosity of the seated person has a larger opening width than the front opening, the supporting pressure in the vicinity of the high body pressure region can be more appropriately alleviated.

  The openings (openings 11Ab and 11Bb) formed at the front and rear edges of the planar body (planar body 11) and the high body pressure region (high body pressure region PA) are aligned in the front-rear direction. It is arranged in a straight line. With such a configuration, the supporting pressure near the high body pressure region is formed by the openings formed at the front and rear edges of the planar body so as to sandwich the high body pressure region straight from the front and rear sides. Can be more appropriately alleviated.

  The planar body (planar body 11) is made of a fabric material processed into a cloth having a uniform texture. As described above, even when a general fabric material having a uniform structure is applied as the planar body, the supporting pressure of the planar supporting member (the planar supporting member 10) is partially changed according to the body pressure distribution of the occupant. Can be easily changed.

  As described above, the embodiment of the present invention has been described using one example. However, the present invention can be implemented in various forms other than the above example. For example, the "vehicle seat" of the present invention can be applied to seats other than the right seat of an automobile, and is used for vehicles other than automobiles such as railways, and other vehicles such as aircraft and ships. It can be widely applied to sheets.

  Further, the configuration of the present invention can be applied to other seat components such as a seat back, a headrest, and an ottoman, in addition to the seat cushion. In the case where the planar support member is applied to the seatback, the `` high body pressure region where the body pressure is locally increased when the body pressure of the occupant is applied to the planar body '' is This is an area where the waist of the seated person and the left and right scapula are located. In addition, the support member is made of a wire of a type that is passed along a cylindrical through portion formed at the edge of the planar body, and is also fixed to the edge of the planar body by being integrally molded. It may be composed of various types of engaging members such as resin hooks mounted in the closed state.

  Further, the planar support member may be provided so as to receive the body of the occupant without the intervention of a seat pad that elastically supports the body of the occupant. In the case where openings are formed at a pair of opposing edges of the planar body, the opening widths of these openings may be the same as each other or may be different. Further, the shape of the opening is not limited to a shape that opens in a round shape such as a half-moon shape, and may be any other shape such as a triangular shape or a rectangular shape.

  Further, as shown in FIG. 5, in a configuration in which the through portions 11A and 11B through which the wires 12 and 13 (support members) are passed are formed at the respective front and rear edges of the planar body 11, in the front and rear sides, The openings 11Ab and 11Bb on the left and right sides formed in the through portions 11A and 11B may be formed at the following positions. That is, a line segment L1 connecting the front and rear openings 11Ab and 11Bb formed in the right region and a line segment L2 connecting the front and rear openings 11Ab and 11Bb formed in the left region are formed. Alternatively, they may be arranged so as to pass obliquely in the seat width direction on the high body pressure region PA where the corresponding left and right ischial tuberosities are located. Even with such a configuration, the front and rear openings 11Ab and 11Bb formed in the left region are on the line L1 connecting the front and rear openings 11Ab and 11Bb formed in the right region. The left and right high body pressure regions PA where the ischial tuberosities are located are located on the line segment L2 connecting the two. Therefore, when the seating pressure of the occupant is applied to the planar body 11, the action of the tensile stress applied to each of the wires 12, 13 on the front and rear sides through the planar body 11 is caused by the opening 12 </ b> Ab, 11 </ b> Bb. , 13 is escaped and relaxed. Therefore, the support pressure in the vicinity of the high body pressure region where the seated person's ischial tuberosity is located can be appropriately alleviated.

1 seat (vehicle seat)
2 Seat back 3 Seat cushion 3F Cushion frame (Seat cushion frame)
3Fa Side frame 3Fb Front panel 3Fc Front pipe 3Fd Rear pipe 3P Cushion pad 3C Cushion cover 4 Slide rail 5 Sea lifter 5A Front link 5B Rear link 10 Planar support member 11 Planar body 11A Passing portion 11Aa Opening 11Ab Opening (opening)
11B Passing portion 11Ba opening 11Bb opening (opening)
12 wires (supporting members)
12A insertion part 12B hook part 12C coating material 13 wire (supporting member)
13A Insertion part 13B Hook part 13C Coating material PA High body pressure region L1, L2 Line segment W Opening width

Claims (8)

A vehicle seat having a seat frame and a planar support member stretched on the seat frame and supporting a body of a seated person,
It said flat-type supporting member comprises a planar body of the flexible properties that will be stretched in a vertical direction perpendicular to the sheet width direction with respect to the seat frame, at least one side edge in the direction perpendicular to the said surface shaped body A support member assembled to the part and attached to the seat frame,
High body pressure in which the body pressure is locally increased when the body pressure of the seated person is applied to the planar body in the support area in the seat width direction supported by the support member of the planar body. An opening is formed in the high tensile stress area that receives the action of the tensile stress in the orthogonal direction from the area to release the support force received from the support member ,
The support member has a sheet width along a pair of left and right cylindrical through portions formed so as to be divided at at least one edge in the orthogonal direction of the planar body at a central portion in the sheet width direction. A pair of left and right configurations, each having an insertion portion that is individually passed in the same direction, and a hook portion that extends from each end portion of the insertion portion in an arched shape in the orthogonal direction and is hooked to the seat frame. It is configured to be attached to the seat frame,
At each location corresponding to the high tensile stress region of the pair of left and right through portions, the opening is formed in a shape that opens in a direction opposite to the direction of action of the tensile stress, and receives a supporting force received from the support member. A vehicle seat configured to escape . The vehicle seat according to claim 1,
A vehicle seat in which the opening has a shape in which the through portion is cut out in a round shape from the opening side. The vehicle seat according to claim 1 or claim 2,
The planar support member is configured to be stretched in a front-rear direction with respect to a seat cushion frame constituting the seat frame and to support a body of a seated person from below,
A vehicle seat in which the high body pressure region is set as a region in the planar body where a seated ischium tuber of a seated person is located. The vehicle seat according to claim 3,
A vehicle seat in which the opening is formed in a region of the planar body that is arranged in the front-rear direction with the high body pressure region. The vehicle seat according to any one of claims 2 to 4, wherein:
A vehicle seat having the opening formed by assembling the support member with at least a rear edge of the planar body. The vehicle seat according to claim 5,
The opening is formed by assembling the support member at each of the front and rear edges of the planar body, and the opening is formed at the rear edge of the opening formed at the front edge. The vehicle seat, wherein the opening has a larger opening width in the seat width direction. The vehicle seat according to claim 6, wherein
A vehicle seat in which the openings and the high body pressure regions formed at the front and rear edges of the planar body are arranged in a straight line in the front-rear direction. The vehicle seat according to any one of claims 1 to 7, wherein:
A vehicle seat in which the planar body is formed of a fabric material processed into a cloth having a uniform texture.

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