JP6761196B2 - Sheet - Google Patents

Description

The present invention relates to a seat provided with a pad in which a ventilation path for passing air is formed and a sheet-shaped heater arranged on a surface of the pad on the seater side.

Conventionally, there has been known a seat having an air-conditioning function configured to create a comfortable seating environment by blowing air introduced into a ventilation path provided in a pad to a seated person. (See Patent Document 1). Further, there is also known a seat having a seat-shaped heater on the seat side of the seat cushion or the pad of the seat back and having a heating function configured to warm the seat (see Patent Document 2). ).

Japanese Unexamined Patent Publication No. 2012-218655 Japanese Unexamined Patent Publication No. 2013-1360

By the way, when both the ventilation path and the heater are provided on the seat, the heater is inserted into the recessed part of the pad forming the ventilation path while being configured so that the pad does not become thick even if the size of the ventilation path is secured. It is desirable to configure the heater so that it does not deform unnecessarily.

Therefore, an object of the present invention is to provide a sheet capable of suppressing unnecessary deformation of the heater while reducing the thickness of the pad.
You can also improve the air-conditioning performance, an object of the present invention is to provide a sheet that can be or to improve the heating performance.
Another object is to provide or to simplify the configuration of the Heater, the sheet or can improve the assembling operability.
Another object is to provide a sheet capable of improving the strength at the periphery of the through-hole portion of the path head.
Another object is to provide a sheet capable of improving the mounting strength of the part material.
Another object is to provide a sheet that can be easily manufactured Pas head.

The sheet for achieving the above-mentioned object covers the pad in which the air passage for passing air is formed, the sheet-shaped heater arranged on the surface of the pad on the seater side, the pad and the heater. A sheet including a skin material, wherein the pad is arranged in the recess and a pad body having a recess formed so as to be recessed on the surface on the seater side opposite to the seater side. A cover member that forms a part of the air passage with the pad body is provided, a part of the heater is arranged in the recess together with the cover member, and the pad body is on the seater side. The surface has a hanging groove formed so as to be recessed on the side opposite to the seater side, the skin material is suspended in the hanging groove by a hanging member, and the hanging member is on the seater side. It is characterized in that the cover member is overlapped with the cover member in the first direction toward the side opposite to the seated side, and is arranged at a position opposite to the seated side with respect to the heater.
In the above-mentioned sheet, the cover member has a surface opposite to the seater side of the cover member and has an abutting surface that abuts on the inner surface of the recess, and the hanging member has the abutting surface. It can be configured to be arranged at a position closer to the seated person than the surface.
In the above-mentioned sheet, the hanging member may be arranged at a position between the seater-side surface of the pad body and the contact surface in the first direction.
In the above-mentioned sheet, the skin material has a suture portion, the cover member has a suture portion arrangement groove into which the suture portion enters, and the suspension member is on the seater side of the suture portion arrangement groove. It can be configured to be arranged at a position opposite to that of.
In the above-mentioned sheet, a part of the heater may be arranged in the suture portion arrangement groove and may be sandwiched between the cover member and the suture portion.
In the above-mentioned sheet, the heater includes a base material and a heater wire supported by the base material, the base material has a base material central portion covering the cover member, and the base material central portion is , The configuration may not be arranged in the hanging groove.
Further, the seat is a seat including a pad on which an air passage for passing air is formed and a sheet-shaped heater arranged on a surface of the pad on the seater side, and the pad is a seater. The heater comprises a pad body having a recessed hole on the side surface and a film-like member arranged to cover the hole and forming a part of the air passage between the hole. , It is characterized in that it is arranged so as to overlap with the film-like member.

According to such a configuration, since a film-like member is adopted as a member which is arranged so as to cover the hole portion of the pad body and forms a part of the ventilation path between the pad body and the hole portion, the size of the ventilation path is large. It is possible to reduce the thickness of the pad while ensuring the above. Further, since the sheet-shaped heater can be supported by the film-shaped member, unnecessary deformation of the heater can be suppressed. Thereby, for example, the durability of the heater can be improved.

In the above-mentioned sheet, the film-like member may have a structure having lower air permeability than the pad body.

According to this, since air can flow satisfactorily in the ventilation path, the air conditioning performance of the seat can be improved.

In the above-mentioned sheet, the pad has a ventilation hole for communicating the inside and the outside of the ventilation passage on the surface on the seater side, and the heater is supported by the sheet-like base material and the base material. The base material may be configured to include a heater wire, have breathability, and be arranged so as to cover the ventilation holes.

According to this, it is not necessary to provide the heater with a through hole or the like for exposing the ventilation hole of the pad, so that the configuration of the heater can be simplified. Further, since the heater does not have a through hole or the like, it is not necessary to align the heater and the ventilation hole of the pad when assembling the heater, so that the assembling workability of the heater can be improved.

In the above-mentioned sheet, a plurality of the ventilation holes may be provided, and the base material may be arranged so as to cover all the ventilation holes.

According to this, since the ease of air flow in each vent can be made substantially uniform, air can flow satisfactorily in each vent. As a result, the air conditioning performance of the seat can be improved.

In the above-mentioned sheet, the heater includes a sheet-shaped base material and a heater wire supported by the base material, and at least a part of the holes penetrates the side opposite to the seated side. The portion through which the hole portion penetrates can be configured to be covered by both the film-like member and the base material when viewed from the seater side.

According to this, since the penetrating portion of the hole portion is doubly covered, the strength in the vicinity of the penetrating portion of the pad can be improved. Further, in a configuration in which the air permeability of the film-like member is low, the air permeability in the vicinity of the hole is further reduced, so that air can flow better in the ventilation path, and the air conditioning performance of the sheet can be further improved. it can.

In the above-mentioned sheet, the heater includes a sheet-shaped base material and a heater wire supported by the base material, and the pad body is formed so as to be connected to the hole portion on the seater side. The pad has a recessed recess on the surface, the pad is provided with a cover member arranged to cover the recess and forms a part of the ventilation path with the recess, and the base material is from the seater side. As seen, the cover member may be arranged so as to cover the cover member.

According to this, since the base material can be attached to the pad body around the cover member, the cover member can be pressed by the base material, and the attachment strength of the cover member can be improved.

In the above-mentioned sheet, the cover member may have a structure having a ventilation hole for communicating the inside and the outside of the ventilation passage.

According to this, a pad having a ventilation path and a ventilation hole can be easily manufactured as compared with a pad having a structure in which a pad body and a cover member are integrally formed.

In the above-mentioned sheet, the heater includes a sheet-like base material and a heater wire supported by the base material, so that the heater wire overlaps with the film-like member when viewed from the seater side. It can be an arranged configuration.

According to this, since the heater wire is also arranged at the place where the hole portion of the pad is formed, the heating performance of the seat can be improved.

In the above-mentioned sheet, the heater wire may be arranged so as to overlap both the film-like member and the cover member when viewed from the seater side.

In the above-mentioned sheet, the heater includes a sheet-shaped base material and a heater wire supported by the base material, and the base material is a range in which the heater wire is arranged when viewed from the seater side. It can be configured to extend to the outside.

According to this, since the heater can be attached to the pad at a portion extending to the outside beyond the range where the heater wire of the base material is arranged, the attachment strength of the heater can be improved.

In the above-mentioned sheet, the pad includes a seat cushion pad and a seat back pad, the heater includes a sheet-shaped base material, and a heater wire supported by the base material, and the heater wire is the heater wire. The seat back pad may be arranged so as to face the back portion excluding the shoulder portion of the seated person.

According to this, since the heater wire is arranged at the portion where the seated person and the seat back are in close contact with each other, the heating performance of the seat can be improved.

In the above-mentioned seat, the pad includes a seat cushion pad and a seat back pad, the heater includes a seat back heater arranged on a seater-side surface of the seat back pad, and the seat back heater is seated. It has a central heater facing the back of the upper body of a person and left and right side heaters provided on both the left and right sides of the central heater, and the left and right side heaters are formed symmetrically, and each of them is formed symmetrically. The configuration may include a vertically long side main body and a connecting portion extending from the vertical central portion of the side main body toward the central heater and connecting to the central heater.

In the above-mentioned sheet, the film-like member may have an adhesive layer for attaching the heater to the pad body.

According to this, since the film-like member and the member for attaching the heater to the pad body can be attached at once, the assembling workability can be improved.

According to the present invention, it is possible to suppress unnecessary deformation of the heater while reducing the thickness of the pad.

Further, from the pad body a full Irumu shaped member by a low construction breathability, it is possible to improve the air conditioning function of the sheet.

Further, by arranging the substrate having air permeability of Heater to cover the vent holes of the pad, or to simplify the structure of the heater, or it can improve the assembling operability of the heater.

Further , by arranging the base material so as to cover all the ventilation holes, the air conditioning performance of the sheet can be improved.

Further, by covering the both the through portion of the hole film member and the substrate of, or to improve the strength of the periphery of the through-hole portion of the pad, the air-conditioning performance of the sheet or can further improve.

Further , by arranging the base material so as to cover the entire cover member of the pad, the mounting strength of the cover member can be improved.

In addition, by the cover member forming part of the air passage between the recess covers the recess of the Pas head body provided with a vent hole, it is possible to easily produce a pad having a vent passage or vent.

Further, by arranging the Heater line so as to overlap with the film member, it is possible to improve the heating performance of the sheet.

Further , the mounting strength of the heater can be improved by forming the base material so as to extend to the outside of the range in which the heater wire is arranged.

Further, by arranging so as to face the Heater wire back portion excluding the shoulder portion of the seated person, it is possible to improve the heating performance of the sheet.

Further, since the full Irumu shaped member is configured to have an adhesive layer for attaching the heater to the pad body, it is possible to improve the assembling workability.

It is a perspective view of the vehicle seat as the seat which concerns on embodiment. It is a perspective view of the back pad main body, the 1st cover member, the 2nd cover member, a film-like member, and a seat back heater. It is a front view of the back pad body. It is a front view of a seat back pad. It is a front view (a) of a seat back pad and a seat back heater, and is an enlarged view (b) of part A of (a). 5 is a cross-sectional view taken along the line XX of FIG. 5A. 5A is a cross-sectional view taken along the line YY of FIG. 5A. It is sectional drawing of the skin material. It is a perspective view of the cushion pad main body, the 4th cover member, the 5th cover member, and a seat cushion heater. It is a top view of the seat cushion pad. It is a plan view (a) of a seat cushion pad and a seat cushion heater, and is an enlarged view (b) of part B of (a). 11 is a cross-sectional view taken along the line ZZ of FIG. It is sectional drawing corresponding to the YY cross section of FIG. 5A of the vehicle seat which concerns on a modification.

Next, embodiments of the invention will be described in detail with reference to the drawings as appropriate. In the present invention, the front-back, left-right, and up-down are based on the person sitting on the seat (seat person).
As shown in FIG. 1, the seat according to the present embodiment is configured as a vehicle seat S used in an automobile, and includes a seat cushion S1, a seat back S2, and a headrest S3.

The vehicle seat S includes a seat frame (not shown), a pad P covered on the seat frame, a seat-shaped heater H arranged on the seater-side surface of the pad P, and a skin material covering the pad P and the heater H. It mainly has 7.
The pad P includes a seat cushion pad P1 which is a pad of the seat cushion S1 and a seat back pad P2 which is a pad of the seat back S2. Further, the heater H is arranged on the seat cushion heater H1 arranged on the upper surface of the seat cushion pad P1 on the seater side and on the front surface of the seat back pad P2 on the seater side. It includes a seat back heater H2.

As shown in FIG. 2, the seat back pad P2 includes a back pad main body 21 as a pad main body, a first cover member 22 and a second cover member 23 as a cover member, and a film-like member 24 as a third cover member. A ventilation path 20 for passing air is formed inside the structure. Further, the seat back pads P2 are provided on the left and right sides of the back center portion P21 facing the back of the upper body of the seated person and on the left and right sides of the back center portion P21 so as to project in front of the back center portion P21. It has a part P22.

As shown in FIG. 3, the back pad main body 21 is formed of urethane foam or the like, and is formed in the back central portion P21 so as to be recessed rearward on the front surface, and the first recess 211 and the second recess as recesses are formed. It has 212 and a hole 213.

The first recess 211 has a substantially rectangular shape that is long in the vertical direction when viewed from the front side of the seat back S2 on the seated side, and is formed so as to extend from the central portion to the lower portion of the back central portion P21. The upper end of the first recess 211 is formed so that the central portion is connected to the lower end of the hole portion 213. Inside the first recess 211, convex portions 214 protruding forward from the bottom surface of the first recess 211 are provided vertically side by side. The convex portion 214 is a portion that later supports the first cover member 22, which will be described later.
The second recess 212 has a substantially long shape on the left and right when viewed from the front side, and is formed at an upper portion of the back central portion P21 at a distance from the upper end of the first recess 211. The lower end of the second recess 212 is formed so that the central portion is connected to the upper end of the hole portion 213. The left and right lengths of the first recess 211 and the second recess 212 are substantially the same.

The hole 213 is formed long in the vertical direction when viewed from the front side, and is provided between the first recess 211 and the second recess 212. The left and right lengths of the hole 213 are smaller than the left and right lengths of the first recess 211 and the second recess 212. The hole portion 213 is formed so as to connect the central portion of the upper end of the first recess 211 and the central portion of the lower end of the second recess 212. The bottom surfaces of the first recess 211, the second recess 212, and the hole 213 are substantially flush with each other. The hole portion 213 is a substantially oval-shaped penetrating portion 213A in which a central portion in the vertical direction, which is a part thereof, penetrates to the rear side opposite to the seater side of the seat back S2.

As shown in FIG. 4, the first cover member 22 is a member that is arranged so as to cover the first recess 211 from the front side and forms a part of the ventilation path 20 with the first recess 211. The first cover member 22 is made of urethane foam or the like and is formed in a substantially rectangular plate shape that is long in the vertical direction. The first cover member 22 is provided with a first vent hole 221 (vent hole) penetrating the front and rear so as to communicate the inside of the vent passage 20 and the outside of the seat back pad P2. A plurality of first ventilation holes 221 are provided. More specifically, one first vent hole 221 is provided at each of the upper, central and lower ends of the left and right end portions of the first cover member 22. Further, the first ventilation hole 221 is located at a position corresponding to the position between the adjacent convex portions 214 and a position corresponding to the lower side of the convex portion 214 arranged at the bottom in the central portion in the left-right direction of the first cover member 22. Three of each are provided side by side. Further, the first cover member 22 is provided with groove-forming recesses 222 recessed rearward at both left and right ends of the front surface. The groove forming recess 222 forms a part of the suture portion arrangement groove 25 described later. The first cover member 22 is fixed to the back pad main body 21 by attaching the peripheral edge portion of the rear surface to the peripheral portion of the first recess 211 of the back pad main body 21 with an adhesive.

The second cover member 23 is a member that is arranged so as to cover the second recess 212 from the front side and forms a part of the ventilation path 20 with the second recess 212. The second cover member 23 is formed of urethane foam or the like in a substantially rectangular plate shape that is long to the left and right. The second cover member 23 is provided with a second vent hole 231 (vent hole) penetrating the front and rear so as to communicate the inside of the vent passage 20 and the outside of the seat back pad P2. A plurality of second ventilation holes 231 are provided. More specifically, one second vent hole 231 is provided at each of the left and right ends of the second cover member 23. Further, the second cover member 23 is provided with two groove portions 232 recessed rearward side by side at a predetermined interval D in the central portion in the left-right direction of the front surface. The groove portion 232 forms a part of the suture portion arrangement groove 25, similarly to the groove forming recess 222 of the first cover member 22. The second cover member 23 is fixed to the back pad main body 21 by attaching the peripheral edge portion of the rear surface to the peripheral portion of the second concave portion 212 of the back pad main body 21 with an adhesive.

The seat back pad P2 is provided with a plurality of ventilation holes 221,231 in the first cover member 22 and the second cover member 23, so that the front surface has ventilation holes for communicating the inside and the outside of the ventilation passage 20. It has a plurality of 221,231.

The film-like member 24 is a member that is arranged so as to cover the hole portion 213 from the front side and forms a part of the ventilation path 20 with the hole portion 213, and is a member of the first cover member 22 and the second cover member 23. It is placed in between. The film-like member 24 is a film made of a synthetic resin-based material such as polypropylene (PP) or polyethylene (PE), and has a substantially rectangular plate shape that is long in the vertical direction and thinner than the first cover member 22 and the second cover member 23. Is formed in. The film-like member 24 has a structure having lower air permeability than the back pad main body 21, the first cover member 22, and the second cover member 23. Specifically, the film-like member 24 is formed of a material having lower air permeability than the back pad main body 21, the first cover member 22, and the second cover member 23, and is not provided with holes penetrating the front and rear. The air permeability is lower than that of the back pad main body 21, the first cover member 22, and the second cover member 23. The air permeability can be measured and compared by the Frazier method (JIS L 1096 (textile and knitted fabric test method) 8.26.1 A method) or the like. The film-like member 24 is fixed to the back pad body 21 by attaching the left and right ends of the rear surface to the left and right sides of the hole 213 of the back pad body 21 with an adhesive.

The seat back S2 is configured to suck air from the first ventilation hole 221 and the second ventilation hole 231 by sucking the air in the ventilation passage 20 from the through portion 213A by a blower (not shown). The seat back S2 may be configured to blow out air from the first ventilation holes 221 and the second ventilation holes 231.

The seat back pad P2 has a suture portion arrangement groove 25 as a first groove and a suspension groove 26 as a second groove, which are formed so as to be recessed rearward on the front surface.
The hanging groove 26 is a groove for hanging the skin material 7, and is provided one by one between the back central portion P21 and the left and right back side portions P22. Each suspension groove 26 is formed as a groove deeper than the suture portion arrangement groove 25, and is provided so as to extend substantially in the vertical direction.

The suture portion arranging groove 25 is a groove in which the suture portion 7A described later of the skin material 7 is inserted and arranged, and two are provided side by side in the central portion in the left-right direction of the back central portion P21. Each suture portion arrangement groove 25 is provided so as to extend substantially in the vertical direction. More specifically, the suture portion arranging groove 25 is provided under the first portion 251 and the first portion 251 where the distance between them is equal to or less than the predetermined distance D when viewed from the front side. It has a second portion 252 that is larger than the interval D of. Then, the first portion 251 passes from the upper end of the central portion in the left-right direction of the back central portion P21 through the groove portion 232 of the second cover member 23 to the left or right portion of the hole portion 213 (film-like member 24). It is provided so as to extend substantially straight along the vertical direction. Further, the second portion 252 extends from the lower end of the first portion 251 to the left side or the right side portion of the hole portion 213 of the back central portion P21 toward the outside in the left-right direction along the upper end of the first cover member 22. After bending downward on the upper side of the forming recess 222, it is provided so as to extend substantially straight in the vertical direction through the groove forming recess 222 of the first cover member 22 to the lower end of the back central portion P21. .. Each suture portion arrangement groove 25 is provided so as to intersect the second recess 212 in the first portion 251.

Each sutured portion arranging groove 25 has a wide portion 253 at the lower end portion of the first portion 251 and, more specifically, at a portion located to the left or right of the hole portion 213 (film-like member 24). The wide portion 253 is formed so that the lateral outer edge of the first portion 251 extends outward from the other portion of the first portion 251 and is therefore wider than the other portion of the suture portion arrangement groove 25. Is getting wider. A sheet-shaped first fastener member 51 as a fixing member is provided on the wide portion 253 provided in the first portion 251 of each suture portion arrangement groove 25, for example, by being attached to the bottom surface.

The first fastener member 51 is a member for fixing the skin material 7 to the pad P, and constitutes the surface fastener 5 together with the sheet-shaped second fastener member 52 (see FIG. 7) provided on the skin material 7. .. The first fastener member 51 and the second fastener member 52 have, for example, a configuration adopted in a known surface fastener, and are removable from each other. The first fastener member 51 is provided on the wide portion 253, so that the first fastener member 51 is provided on the front surface of the back pad main body 21. The first fastener member 51 is arranged on both the left and right sides of the hole portion 213 and the film-like member 24 so as to sandwich the hole portion 213 and the film-like member 24. Further, the first fastener member 51 functions as a positioning member for the seat back heater H2.

As shown in FIG. 5A, the seat back heater H2 is mainly composed of a sheet-shaped base material 41 and a plurality of heater wires 42 supported by the base material 41, and includes the seat back pad P2. It is arranged between the skin materials 7. Further, the seat back heater H2 has a central heater H21 facing the back of the upper body of the seated person and left and right side heaters H22 provided on both left and right sides of the central heater H21.

The base material 41 is made of a non-woven fabric and has breathability. The base material 41 has a vertically long substantially rectangular base material central portion 411 constituting the central portion heater H21, and left and right base material side portions 412 constituting the left and right side heaters H22. The left and right base material side portions 412 are formed symmetrically so as to form an H shape with the base material central portion 411 interposed therebetween. More specifically, the left and right base material side portions 412 extend from the vertically elongated side main body 412A and the substantially central portion of the side main body 412A in the vertical direction toward the inside in the horizontal direction (central heater H21), respectively. It is formed in a substantially T shape having a connecting portion 412B connected to a central portion 411 (central portion heater H21) of the base material.

The base material central portion 411 (central portion heater H21) is arranged so as to cover substantially the entire front surface of the back central portion P21 when viewed from the front side. More specifically, the base material central portion 411 (central portion heater H21) is arranged so as to cover the film-like member 24 so as to overlap the film-like member 24. As a result, the penetrating portion 213A (the penetrating portion of the hole portion 213) is covered with both the film-like member 24 and the base material 41. Further, the central portion 411 of the base material is arranged so as to cover all the first vent holes 221 and the second vent holes 231. Further, the base material central portion 411 is arranged so as to cover the entire first cover member 22 and the second cover member 23. The central portion 411 of the base material has one opening 413 at a position where the first fastener member 51 is arranged. The opening 413 is formed in the shape of a rectangular hole penetrating the front and rear, and exposes the first fastener member 51.
The base material side portion 412 (side heater H22) is arranged closer to the inside in the left-right direction at the lower part of the front surface of the corresponding back side portion P22.

The heater wire 42 is fixed to the base material 41 by being attached to the seating side surface of the base material 41 with an adhesive. In the drawings to be referred to, the heater wire 42 is shown by a solid line for easy understanding. The heater wire 42 is arranged on the seat back pad P2 so as to face the back portion excluding the shoulder portion of the seated person, and is formed by bending in a substantially zigzag shape when viewed from the front side, and the first heater portion 42A. , A second heater portion 42B and a third heater portion 42C are provided.

The first heater portion 42A is provided on the central portion heater H21 so as to face a portion of the seated person's back from the center in the vertical direction to the waist. The first heater portion 42A is arranged so as to overlap the entire first cover member 22 when viewed from the front side. Further, the left and right ends of the first heater portion 42A are arranged so as to overlap the second portion 252 (groove forming recess 222) of the suture portion arrangement groove 25. More specifically, the heater wires 42 constituting the left and right end portions of the first heater portion 42A have a plurality of straight portions 421 and a plurality of bent portions 422, as shown in FIG. 5 (b). Each of the plurality of straight portions 421 extends linearly along a substantially left-right direction (direction intersecting with the second portion 252), and is arranged side by side in a substantially vertical direction (direction in which the second portion 252 extends). The bent portion 422 is bent in a U shape connecting the ends of adjacent straight portions 421. The heater wire 42 is arranged so that a plurality of straight portions 421 intersect the inner edge 25E of the second portion 252 in the left-right direction when viewed from the front side, and the bent portion 422 on the outer side in the left-right direction of the second portion 252. It is arranged between the left and right edges 25E so as not to cover the outer edge 25E in the left-right direction.

As shown in FIG. 6, the seat back pad P2 is formed on the edge 25E of the suture portion arrangement groove 25 by the front surface of the first cover member 22 and the left-right inner surface of the suture portion arrangement groove 25. It has a corner portion 25A. The bent portion 422 is arranged so as to avoid the corner portion 25A when viewed from the front side. More specifically, the heater wire 42 is arranged so that the straight portion 421 is placed on the corner portion 25A instead of the bent portion 422.

As shown in FIG. 5A, the second heater portion 42B is provided on the central heater H21 so as to face the portion between the shoulders (scapula) on the back of the seated person. The second heater portion 42B is arranged so as to overlap the film-like member 24 when viewed from the front side. In the seat back S2, the second heater portion 42B is arranged so as to overlap the film-like member 24, and the first heater portion 42A is arranged so as to overlap the first cover member 22. It is arranged so as to overlap both the film-shaped member 24 and the first cover member 22. Further, the second heater portion 42B is arranged so as to fit between the first portion 251 of the two suture portion arrangement grooves 25 so as not to overlap with the first portion 251 of the suture portion arrangement groove 25.
The third heater portion 42C is provided on each of the left and right side heaters H22 so as to face the left and right sides of the portion of the seated person's back from the center in the vertical direction to the waist.

The seat back heater H2 configured in this way is fixed to the seat back pad P2 by being attached to the front surface of the seat back pad P2 with double-sided tape at several positions. Here, the central portion 411 of the base material extends to the outside of the range in which the heater wire 42 is arranged when viewed from the front side. Specifically, the upper end portion of the base material central portion 411 extends above the upper end of the second heater portion 42B, and the lower end portion of the base material central portion 411 is arranged at the bottom of the first heater portion 42A. It extends below the straight line portion 421. Further, the left and right ends of the central portion 411 of the base material extend to the outside in the left-right direction from the left and right ends of the first heater portion 42A. As a result, the seat back heater H2 can be attached to the seat back pad P2 at the upper end or the lower end of the base material 41, so that the attachment strength of the seat back heater H2 can be improved.

Further, the seat back heater H2 is attached to the inner surface of the stitched portion arrangement groove 25 at several positions by a double-sided tape 6 as a sheet-like attaching member, as illustrated in FIG. More specifically, the double-sided tape 6 is a member for attaching the heater H to the inner surface of the suture portion arrangement groove 25 or the like, and has adhesive layers on both the front and rear surfaces of the tape base material shown by omitting the reference numerals. are doing. The seat back pad P2 has a first surface F1 and a second surface F2 that sandwich one suture portion arrangement groove 25 on the front surface. The double-sided tape 6 is attached along the first surface F1, the inner surface of the suture portion arrangement groove 25 (specifically, the inner surface in the left-right direction, the bottom surface, and the outer surface in the left-right direction), and the second surface F2. It is attached and arranged. The seat back heater H2 is formed by the double-sided tape 6 through the double-sided tape 6, the first surface F1, the inner surface of the suture portion arrangement groove 25 in the left-right direction, the bottom surface of the suture portion arrangement groove 25, and the suture portion arrangement groove 25. It is attached so as to be along the outer surface in the left-right direction and the second surface F2. As a result, the seat back heater H2 is arranged so that the portion facing the suture portion arrangement groove 25 is inserted into the suture portion arrangement groove 25. Since the suture portion arranging groove 25 is shallower than the hanging groove 26, it is easy to arrange the double-sided tape 6 in the suture portion arranging groove 25. Thereby, the assembling workability of the heater H can be improved.

Further, as shown in FIG. 7, the portion of the seat back heater H2 facing the film-shaped member 24 is attached to the front surface of the film-shaped member 24 by the double-sided tape 6.
The double-sided tape 6 may be the same as the double-sided tape for attaching the heater H to the seated surface of the pad P.

As shown in FIG. 8, the skin material 7 has a three-layer structure including a first sheet 71, a second sheet 72, and a third sheet 73, and has a first sheet 71, a second sheet 72, and a third sheet 73. The sheets 73 are sewn together to form a single sheet-like member. The first sheet 71 is a member that constitutes the surface portion of the skin material 7, and has a plurality of fine through holes 71A (circular punch holes). The third sheet 73 is a member constituting the back side portion (the portion on the pad P side) of the skin material 7, and has breathability. The second sheet 72 is a member arranged between the first sheet 71 and the third sheet 73, and has air permeability. Since the second seat 72 is arranged on the side opposite to the seated side of the first seat 71, it is exposed from the through hole 71A of the first seat 71. The colors of the first sheet 71 and the second sheet 72 are different from each other. As an example, the first sheet 71 is black and the second sheet 72 is blue.

As shown in FIG. 7, the skin material 7 has a suture portion 7A formed by sewing a plurality of sheets (two sheets) together. The suture portion 7A is formed so as to follow the shape of the suture portion arrangement groove 25 provided on the seat back pad P2. In the present invention, the structure and the method of forming the suture portion 7A are not particularly limited. The rear surface of the skin material 7, specifically, the portion of the suture portion 7A provided so as to face the suture portion arrangement groove 25, which faces the first fastener member 51, is formed together with the first fastener member 51. A second fastener member 52 that constitutes the surface fastener 5 is provided. The second fastener member 52 is fixed to the skin material 7 by being attached to or sewn to the skin material 7 with an adhesive. The skin material 7 is fixed to the seat back pad P2 by attaching the second fastener member 52 to the first fastener member 51 of the seat back pad P2 through the opening 413 of the seat back heater H2. Then, as shown in FIG. 6, the skin material 7 is arranged such that the suture portion 7A, which is a part thereof, is inserted into the suture portion arrangement groove 25 together with the seat back heater H2. As a result, it is possible to suppress the suture portion 7A from protruding forward, so that the feeling of contact with the suture portion 7A can be suppressed.

Returning to FIG. 7, in the seat back S2, since the seat back heater H2 has an opening 413 that exposes the first fastener member 51, the skin material 7 is formed by the second fastener member 52 and the first fastener member 51. It can be fixed to the seat back pad P2. By this fixing, the portion around the opening 413 of the seat back heater H2 is sandwiched between the seat back pad P2 and the skin material 7, so that the position of the seat back heater H2 can be determined. Since the first fastener member 51 functions as a positioning member in this way, it is not necessary to provide the pad P with both a member for fixing the heater H and a member for determining the position of the heater H. The configuration of the pad P can be simplified, and the number of parts constituting the vehicle seat S can be reduced.

As shown in FIG. 9, the seat cushion pad P1 mainly includes a cushion pad main body 11, a fourth cover member 12, and a fifth cover member 13, and a ventilation path 10 for passing air is formed therein. ing. Further, the seat cushion pad P1 has a cushion central portion P11 and left and right cushion side portions P12 provided so as to project above the cushion central portion P11 on both left and right sides of the cushion central portion P11.

The cushion pad body 11 is made of urethane foam or the like. The cushion pad main body 11 has a third recess 111 formed in the front portion of the cushion central portion P11 so as to be recessed downward on the upper surface and to which the fourth cover member 12 and the fifth cover member 13 can be engaged. are doing. On the bottom surface of the third recess 111, a through hole 112 penetrating the lower side of the seat cushion S1 opposite to the seated side is provided at a position on the right side of the rear end portion.

The fourth cover member 12 is a member that engages with the third recess 111 to form the air passage 10. The fourth cover member 12 is formed of urethane foam or the like in a substantially plate shape that is long in the front-rear direction and has a front end extending downward. The fourth cover member 12 is provided with a ventilation path forming hole 121 penetrating vertically to form the ventilation path 10. The ventilation path forming hole 121 extends from a position facing the through hole 112 toward the center in the left-right direction, and then bends forward and extends, and the first forming hole 122 and the front end of the first forming hole 122 outward in the left-right direction. It has a second forming hole 123 that extends substantially forward from the left-right end after extending so as to branch toward it. The lower surface of the fourth cover member 12 is fixed to the cushion pad main body 11 by being attached to the bottom surface of the third recess 111 of the cushion pad main body 11 with an adhesive.

The fifth cover member 13 is a member that forms a front surface portion of the cushion central portion P11 by engaging with the third recess 111 so as to cover the fourth cover member 12. The fifth cover member 13 is formed of urethane foam or the like in a substantially plate shape which is long in the front-rear direction and has a front end extending downward. The fifth cover member 13 is provided with a third vent hole 131 that penetrates vertically and communicates with the inside of the ventilation passage 10 and the outside of the seat cushion pad P1. A plurality of third ventilation holes 131 are provided. More specifically, as shown in FIG. 10, the third vent hole 131 is arranged so as to overlap the left and right ends of the second forming hole 123 when viewed from the upper side of the seat cushion S1 on the seated side. .. Two of the third vents 131 are provided side by side on each of the left and right sides, and four pairs of two third vents 131 arranged side by side are provided substantially front and back. Further, the fifth cover member 13 is provided with a groove-forming recess 132 that is recessed downward near the central portion in the left-right direction of the upper surface. The lower surface of the fifth cover member 13 is attached to the upper surface of the fourth cover member 12 with an adhesive, so that the fifth cover member 13 is fixed to the cushion pad main body 11 via the fourth cover member 12. The seat cushion pad P1 is provided with the third ventilation hole 131 in the fifth cover member 13, so that the seat cushion pad P1 has the third ventilation hole 131 that communicates the inside and the outside of the ventilation passage 10 on the upper surface. ..

The seat cushion S1 is configured to blow out air from the third ventilation hole 131 by sending air into the ventilation passage 10 from the through hole 112 by a blower (not shown). The seat cushion S1 may be configured to suck air from the third ventilation hole 131.

The seat cushion pad P1 has a suture portion arrangement groove 15 as a first groove and a suspension groove 16 as a second groove, which are formed so as to be recessed downward on the upper surface.
The hanging groove 16 is a groove for hanging the skin material 7, and is provided one by one between the cushion central portion P11 and the left and right cushion side portions P12. Each suspension groove 16 is formed as a groove deeper than the suture portion arrangement groove 15, and is provided so as to extend substantially in the front-rear direction.

The sutured portion arrangement groove 15 is a groove in which the sutured portion 7A of the skin material 7 is inserted and arranged, and two are provided side by side in the central portion in the left-right direction of the cushion central portion P11. The suture portion arrangement groove 15 is provided so as to extend substantially in the front-rear direction so that the distance between the front end portions is slightly larger than the distance between the rear end portions when viewed from above. The front end portion of the suture portion arrangement groove 15 is formed by a groove forming recess 132 provided in the fifth cover member 13. Each suture portion arrangement groove 15 is a part of the rearmost third vent hole 131 (131A) arranged on the inner side in the left-right direction, specifically, the end portion on the inner side in the left-right direction of the third vent hole 131. , Are provided so as to overlap. Each suture portion arrangement groove 15 has a wide portion 153 in the central portion in the front-rear direction. Similar to the wide portion 253, the wide portion 153 is formed so that the lateral outer edge of the suture portion arrangement groove 15 extends outward from the other portion, whereby the other portion of the suture portion arrangement groove 15 is formed. Wider than. A first fastener member 51 is provided on each of the wide portions 153, such as by being attached to the bottom surface.

As shown in FIG. 11A, the seat cushion heater H1 is mainly composed of a sheet-shaped base material 31 and a plurality of heater wires 32 supported by the base material 31, and includes the seat cushion pad P1. It is arranged between the skin materials 7. Further, the seat cushion heater H1 has a central heater H11 and left and right side heaters H12 provided on both left and right sides of the central heater H11.

The base material 31 is made of a non-woven fabric and has breathability. The base material 31 has a substantially rectangular base material central portion 311 that is long before and after forming the central portion heater H11, and left and right base material side portions 312 that form the left and right side heaters H12. The left and right base material side portions 312 are formed symmetrically, and each extends from the rear end of the front and rear elongated side main body 312A and the rear end of the side main body 312A inward in the left-right direction and connects to the base material central portion 311. It is formed in a substantially L shape having a connecting portion 312B.

The base material central portion 311 is arranged so as to cover substantially the entire upper surface of the cushion central portion P11 when viewed from above. More specifically, the base material central portion 311 is arranged so as to cover all the third vents 131 (see FIG. 10). The central portion 311 of the base material has one opening 313 at a position where the first fastener member 51 is arranged. The opening 313 is formed in the shape of a rectangular hole penetrating vertically to expose the first fastener member 51.
The base material side portion 312 is arranged closer to the inside in the left-right direction on the upper surface of the corresponding cushion side portion P12.

The heater wire 32 is fixed to the base material 31 by being attached to the seating side surface of the base material 31 with an adhesive. The heater wire 32 has a fourth heater portion 32A, a fifth heater portion 32B, and a sixth heater portion 32C, which are formed by being bent in a substantially zigzag shape when viewed from above.

The fourth heater portion 32A is provided on the central heater H11 so as to face the thigh portion of the seated person. As shown in FIG. 11B, the heater wire 32 located inside the fourth heater portion 32A in the left-right direction has a plurality of straight portions 321 and a plurality of bent portions 322. Each of the plurality of straight portions 321 extends linearly along the substantially left-right direction (direction intersecting the suture portion arrangement groove 15), and is arranged side by side in the substantially front-rear direction (direction in which the suture portion arrangement groove 15 extends). The bent portion 322 is bent in a U shape connecting the ends of adjacent straight portions 321. The heater wire 32 is arranged so that a plurality of straight portions 321 intersect with the left and right side edges 15E of the suture portion arrangement groove 15 when viewed from above. As shown in FIG. 12, the seat cushion pad P1 is formed on both the edges 15E of the suture portion arrangement groove 15 by the upper surface of the seat cushion pad P1 and the left or right surface of the suture portion arrangement groove 15. It has a corner portion 15A. The bent portion 322 is arranged so as to avoid the corner portion 15A. More specifically, the heater wire 32 is arranged so that the straight portion 321 is placed on the corner portion 15A instead of the bent portion 322.

As shown in FIG. 11A, the fifth heater portion 32B is provided on the central heater H11 so as to face the buttocks of the seated person. The heater wires 32 forming the left and right ends of the fifth heater portion 32B also have a plurality of straight portions 321 and bent portions 322, and the plurality of straight portions 321 are outside of the suture portion arrangement groove 15 in the left-right direction when viewed from above. The bent portion 322 on the inner side in the left-right direction is arranged between the left and right edges 15E so as not to overlap the inner edge 15E in the left-right direction of the suture portion arrangement groove 15. The bent portion 322 is arranged so as to avoid the corner portion 15A formed on the edge 15E.
The sixth heater portion 32C is provided on each of the left and right side heaters H12 so as to face the left and right sides of the portion from the buttocks to the thighs of the seated person.

The seat cushion heater H1 configured in this way is fixed to the seat cushion pad P1 by being attached to the upper surface of the seat cushion pad P1 with double-sided tape at several positions. Here, the central portion 311 of the base material extends to the outside of the range in which the heater wire 32 is arranged when viewed from above. Specifically, the front end portion of the base material central portion 311 extends to the front side from the front end of the heater wire 32, and the rear end portion of the base material central portion 311 is arranged at the rearmost end of the fifth heater portion 32B. It extends to the rear side of the straight line portion 321. Further, the left and right ends of the central portion 311 of the base material extend to the outside in the left-right direction from the left and right ends of the fourth heater portion 32A. As a result, the seat cushion heater H1 can be attached to the seat cushion pad P1 at the front end and the rear end of the base material 31, so that the attachment strength of the seat cushion heater H1 can be improved.

Further, the seat cushion heater H1 is attached to the inner surface of the suture portion arrangement groove 15 by the double-sided tape 6 at several positions like the seat back heater H2, as illustrated in FIG. More specifically, the seat cushion pad P1 has a first surface F1 and a second surface F2 sandwiching the one suture portion arrangement groove 15 on the upper surface, and the double-sided tape 6 has the first surface. It is attached and arranged along F1, the inner surface of the suture portion arrangement groove 15, and the second surface F2. The seat cushion heater H1 is attached by the double-sided tape 6 along the first surface F1, the inner surface of the suture portion arrangement groove 15, and the second surface F2 via the double-sided tape 6. As a result, the seat cushion heater H1 is arranged so that the portion facing the suture portion arrangement groove 15 is inserted into the suture portion arrangement groove 15. Since the sewn portion arrangement groove 15 is a groove shallower than the hanging groove 16, the assembling workability of the heater H can be improved as in the seat back S2.

Similar to the seat back S2, the skin material 7 covering the seat cushion pad P1 has the suture portion 7A arranged in the suture portion arrangement groove 15 together with the seat cushion heater H1. As shown in FIG. 11A, also in the seat cushion S1, since the seat cushion heater H1 has an opening 313 that exposes the first fastener member 51, the skin material 7 is not shown as a second fastener member. The first fastener member 51 can be fixed to the seat cushion pad P1. Then, by this fixing, the portion around the opening 313 of the seat cushion heater H1 is sandwiched between the seat cushion pad P1 and the skin material 7, so that the position of the seat cushion heater H1 can be determined.

According to the present embodiment described above, the optimum configurations and materials can be set for the cover members 22 and 23 and the film-like member 24 of the seat back pad P2 shown in FIG. 4, and the recesses can be set. Since the 211,212 and the hole 213 are covered by the corresponding cover members 22, 23 and the film-like member 24, the inside of the ventilation path 20, specifically, between the through portion 213A and the ventilation holes 221,231. Air can flow well. As a result, the air conditioning performance of the vehicle seat S can be improved.

Further, since the film-like member 24 has lower air permeability than the back pad main body 21 and the cover members 22 and 23, air leakage from the vicinity of the hole 213 can be suppressed, so that air can flow better in the air passage 20. be able to. As a result, the air conditioning performance of the vehicle seat S can be further improved.

Further, since the cover members 22 and 23 provided as separate parts from the back pad main body 21 have ventilation holes 221,231, for example, compared with a pad having a configuration in which the pad main body and the cover member are integrally formed. Therefore, the pad P having the ventilation passage 20 and the ventilation holes 221,231 can be easily manufactured. The same applies to the seat cushion S1.

Further, since the second recess 212 and the suture portion arrangement groove 25 are provided so as to intersect with each other, the suture portion 7A of the skin material 7 is provided in the suture portion arrangement groove 25 without impairing the air conditioning performance of the vehicle seat S. Can be placed (through the sewing line). As a result, it is possible to improve the degree of freedom in designing the vehicle seat S while improving the air conditioning performance.

Further, as shown in FIG. 5A, since the base material 41 is arranged so as to cover all the ventilation holes 221,231, the ease of air flow in each ventilation hole 221,231 is substantially uniform. Can be. As a result, air can flow satisfactorily through the ventilation holes 221,231, so that the air conditioning performance of the vehicle seat S can be improved. The same applies to the seat cushion S1.

Further, since the penetrating portion 213A of the hole portion 213 is covered by both the film-like member 24 and the base material 41, the vicinity of the penetrating portion 213A is doubly covered, and the vicinity of the penetrating portion 213A of the seat back pad P2 is covered. The strength of the film can be improved. Further, since the penetrating portion 213A is covered with both the film-like member 24 and the base material 41, the air permeability in the vicinity of the hole portion 213 is further lowered, so that air leakage from the vicinity of the hole portion 213 can be further suppressed. .. As a result, the air can flow more satisfactorily in the ventilation passage 20, so that the air conditioning performance of the vehicle seat S can be further improved.

Further, since the heater wire 42 (second heater portion 42B) is arranged so as to overlap the film-like member 24, the heater wire 42 can also be arranged at a position where the hole portion 213 of the seat back pad P2 is formed. it can. Thereby, the heating performance of the vehicle seat S can be improved.

Further, since the heater wire 42 is arranged so as to face the back portion excluding the shoulder portion of the seated person, the heater wire 42 can be arranged at the portion where the seated person and the seat back S2 are in close contact with each other. Thereby, the heating performance of the vehicle seat S can be improved.

Further, since the first fastener member 51 is provided on the seater side surface of the pad P, the skin material 7 can be fixed to the pad P from the front side, so that the assembling workability of the skin material 7 can be improved. The same applies to the seat cushion S1.

Further, since the first fastener member 51 is provided in the suture portion arrangement groove 25, the skin material 7 is placed in the state where the suture portion 7A is inserted into the suture portion arrangement groove 25 and at the position of the suture portion arrangement groove 25. Can be fixed. Thereby, the position of the skin material 7 can be satisfactorily determined. The same applies to the seat cushion S1.

Further, since the first fastener member 51 is provided in the first portion 251 so that the first fastener member 51 is provided in a place where the heater wire of the suture portion arrangement groove is arranged, for example, in the second portion 252. The configuration of the seat back pad P2 can be simplified as compared with the above configuration. Further, since the first fastener member 51 can be easily attached to the seat back pad P2, the seat back pad P2 including the first fastener member 51 can be easily manufactured.

Further, since the first fastener member 51 is provided in the wide portion 253, the area of the first fastener member 51 can be increased. As a result, the mounting strength of the skin material 7 can be improved. The same applies to the seat cushion S1.

Further, since the base material 41 is breathable and is arranged so as to cover the ventilation holes 221,231, it is not necessary to provide the heater H with a through hole or the like for exposing the ventilation holes 221,231. Therefore, the configuration of the heater H can be simplified. Further, since the heater H does not have a through hole or the like, it is not necessary to align the heater H with the ventilation holes 221,231 when assembling the heater H, so that the assembling workability of the heater H can be improved. .. The same applies to the seat cushion S1.

Further, since the base material 41 is arranged so as to cover the entire cover members 22 and 23, the base material 41 can be attached to the back pad main body 21 around the cover members 22 and 23. As a result, the cover members 22 and 23 can be pressed by the base material 41, so that the mounting strength of the cover members 22 and 23 can be improved.

Further, since the hanging groove 26 is deeper than the suture portion arranging groove 25, when the skin material 7 is hung in the hanging groove 26, the back central portion P21 and the back side protruding in front of the back central portion P21. It is possible to suppress the occurrence of wrinkles in the skin material 7 due to the step (height difference) with the portion P22. Thereby, the appearance of the vehicle seat S can be improved. The same applies to the seat cushion S1.

As shown in FIG. 6, since the heater H has entered the suture portion arrangement groove 25 of the pad P and is attached to the inner surface of the suture portion arrangement groove 25, the heater H is pressed by the pad P when the pad P is deformed. Can be made to follow. As a result, the heater H is supported by the pad P, so that unnecessary deformation of the heater H can be suppressed. As a result, for example, it is possible to improve the durability of the heater H and extend the life of the heater H. The same applies to the seat cushion S1.

Further, since the heater H is inserted into the suture portion arrangement groove 25, the skin material 7 can be arranged in a state of being inserted into the suture portion arrangement groove 25. As a result, the line formed by the portion of the skin material 7 that has entered the sutured portion arranging groove 25 can be clearly drawn on the surface of the vehicle seat S, so that the design of the vehicle seat S can be improved. The same applies to the seat cushion S1.

Further, the position of the skin material 7 can be determined by the suture portion 7A of the skin material 7 entering the suture portion arrangement groove 25. Further, by determining the position of the skin material 7 (sewn portion 7A), the line of the sutured portion 7A can be clearly shown, so that the design of the vehicle seat S can be further improved. The same applies to the seat cushion S1.

Further, since the position of the skin material 7 is determined by the insertion of the stitched portion 7A into the stitched portion arrangement groove 25, the position where the first fastener member 51 is installed, that is, the fixed position of the skin material 7 is minimized, and the skin material 7 is used. It can be fixed and positioned well. The same applies to the seat cushion S1.

Further, since the double-sided tape 6 for attaching the heater H to the inner surface of the suture portion arrangement groove 25 is arranged along the first surface F1, the inner surface of the suture portion arrangement groove 25, and the second surface F2, for example, The heater H can be attached to the pad P in a wider area as compared with the configuration in which the double-sided tape is arranged only on the bottom surface of the suture portion arrangement groove. Thereby, the mounting strength of the heater H can be improved. The same applies to the seat cushion S1.

Further, since the bent portion 422 of the heater wire 42 is arranged so as to avoid the corner portion 25A formed on the edge of the suture portion arranging groove 25, the bent portion 422 is locally located from the corner portion 25A when the seated person sits down. It is possible to suppress the application of a specific load. As a result, the influence of the load applied to the heater wire 42 can be reduced as a whole. The same applies to the seat cushion S1.

As shown in FIG. 7, a thin film-like member 24 is adopted as a member arranged so as to cover the hole 213 of the back pad main body 21 and forming a part of the ventilation path 20 with the hole 213. Therefore, the seat back pad P2 can be made thinner while ensuring the size of the ventilation path 20. Since the seat back heater H2 is arranged so as to overlap the film-shaped member 24, the seat back heater H2 can be supported by the film-shaped member 24, so that unnecessary deformation of the seat back heater H2 can be suppressed. .. This makes it possible to improve the durability of the seat back heater H2 and extend its life.

Further, since the first fastener member 51 is arranged on both sides of the hole portion 213 and the film-like member 24 so as to sandwich the hole portion 213 and the film-like member 24, the skin material 7 is seated back on both sides of the hole portion 213. It can be fixed to the pad P2. As a result, the bending of the skin material 7 in the vicinity of the hole 213 can be suppressed, and by suppressing the bending, unnecessary deformation of the portion of the seat back heater H2 arranged in the vicinity of the hole 213 is further suppressed. be able to. Further, since the film-shaped member 24 can be pressed by the skin material 7 fixed to the back pad main body 21, the mounting strength of the film-shaped member 24 can be improved.

Further, since the surface fastener 5 is used for fixing the skin material 7, it is possible to suppress the floating of the skin material 7 and improve the appearance of the vehicle seat S. Further, by using the hook-and-loop fastener 5 for fixing, the skin material 7 can be easily fixed, so that the assembling workability of the skin material 7 can be improved.

Further, as shown in FIG. 8, since the skin material 7 includes the first sheet 71 and the second sheet 72 exposed from the through hole 71A of the first sheet 71, for example, the first sheet 71 and the second sheet The sheet 72 can be formed of a different material or the like. As a result, the functionality of the skin material 7 can be improved, and the degree of freedom in designing the vehicle seat S can be improved.

Further, since the colors of the first seat 71 and the second seat 72 are different, a three-dimensional design can be realized, and the design of the vehicle seat S can be further improved.

Further, as shown in FIG. 10, since the suture portion arranging groove 15 and the third vent hole 131A are provided so as to partially overlap each other, the suture portion S is sewn without impairing the air conditioning performance of the vehicle seat S. The suture portion 7A of the skin material 7 can be arranged in the portion arrangement groove 25 (the sewing line can be passed through). As a result, it is possible to improve the degree of freedom in designing the vehicle seat S while improving the air conditioning performance.

Although the embodiments have been described above, the present invention is not limited to the above embodiments. The specific configuration can be appropriately changed as described below without departing from the spirit of the invention.

In the above embodiment, as shown in FIG. 3, the penetrating portion 213A, which is a part of the hole portion 213, is formed so as to penetrate the side opposite to the seated side, but the present invention is not limited to this, for example. , The hole may be formed so as to penetrate the entire hole on the side opposite to the seated side.

In the above embodiment, as shown in FIG. 4, the second recess 212 and the suture portion arranging groove 25 are provided so as to intersect each other when viewed from the seater side, but the present invention is not limited to this. For example, instead of the second recess, the first recess and the suture portion arranging groove may be provided so as to intersect when viewed from the seater side. Further, both the first recess and the second recess and the suture portion arrangement groove may be provided so as to intersect each other when viewed from the seater side.

In the above embodiment, the first cover member 22, the second cover member 23, and the film-like member 24 are fixed by being attached to the back pad main body 21 by an adhesive, but the present invention is not limited to this. For example, the first cover member, the second cover member, and the film-like member (third cover member) may be fixed by being attached to the pad body with double-sided tape or the like.

In the above embodiment, the pad P includes two cover members (first cover member 22 and second cover member 23), but the present invention is not limited to this, and for example, the number of cover members may be one. However, it may be three or more. Further, the pad may have a configuration in which the pad body and the cover member are integrally formed.

In the above embodiment, the pad P has the suture portion arrangement grooves 15 and 25 on the seater side surface, but the present invention is not limited to this, and for example, the pad has the suture portion arrangement groove on the seater side surface. The configuration may not be provided with (the first groove).

In the above embodiment, as a member for fixing the skin material 7 to the pad P, a surface fastener 5 composed of a first fastener member 51 and a second fastener member 52 has been exemplified, but the present invention is not limited thereto. For example, the member that fixes the skin material to the pad may be a snap button or the like. Further, the fixing member provided on the pad may be, for example, double-sided tape.

In the above embodiment, as shown in FIG. 5A, the base material 41 is arranged so as to cover all the ventilation holes 221 and 231 but is not limited to this, and for example, the base material is a plurality of base materials. Of the ventilation holes, it may be arranged so as to cover only a part of the ventilation holes. Further, in the above-described embodiment, the openings 313 and 413 provided in the heater H are formed in a hole shape, but the present invention is not limited to this, and for example, the opening is formed in a notch shape in which a part is opened outward. It may be formed.

In the above embodiment, as shown in FIG. 6, the heater H is attached to the entire inner surface of the suture portion arrangement groove 25, but the present invention is not limited to this, and for example, the heater is an inner surface of the suture portion arrangement groove. Of these, it may be attached only to the bottom surface. According to such a configuration, it becomes easy to arrange the double-sided tape or the like in the groove for arranging the suture portion, so that the assembling workability of the heater can be improved. Further, the heater may be attached to the inner surface of the suture portion arrangement groove by, for example, an adhesive or the like instead of the double-sided tape.

In the above embodiment, as shown in FIG. 7, the film-like member 24 is attached to the back pad main body 21 by an adhesive, and the seat back heater H2 is attached to the film-like member 24 by the double-sided tape 6 as the attachment member. However, it is not limited to this. For example, as shown in FIG. 13, the film-like member 24 has an adhesive layer 24A for attaching the seat back heater H2 to the back pad main body 21 at least on the front surface, and the seat back heater H2 has a double-sided tape. It may be attached to the adhesive layer of the film-like member 24 without interposing. Further, even if the film-like member 24 has the adhesive layers 24A on both the front and rear surfaces and the seat back heater H2 is directly attached to the back pad main body 21 by the film-like member 24 that functions as a so-called double-sided tape. Good. According to such a configuration, the film-like member 24 and the member for attaching the seat back heater H2 to the back pad main body 21 can be attached at once, so that the assembling workability can be improved.

In the above embodiment, as shown in FIG. 10, the suture portion arrangement groove 15 and the third vent hole 131A are provided so as to partially overlap when viewed from the seater side, but the present invention is limited to this. is not. For example, to explain with reference to FIG. 10, the suture portion arranging groove 15 and the third vent hole 131A are arranged so that the entire third vent hole 131A overlaps with the suture portion arranging groove 15 when viewed from the seater side. In other words, the third vent hole 131A may be provided so as to be arranged in the suture portion arrangement groove 15.

In the above embodiment, the suture portion 7A is formed by sewing a plurality of skin materials 7, but the suture portion is not limited to this, and for example, the suture portion is a portion in which one skin material is folded and folded. It may be formed by sewing together.

In the above embodiment, the pad P is configured to include the seat cushion pad P1 and the seat back pad P2, but the pad P is not limited to this, and for example, the pad is formed with the seat cushion pad and the seat back pad integrally. It may have such a configuration.

In the above-described embodiment, the vehicle seat S used in an automobile is exemplified as the seat, but the seat is not limited to this, and the seat is a seat used in a vehicle other than an automobile, for example, a railroad vehicle, a ship, an aircraft, or the like. It may be. Further, the seat is not limited to a seat for vehicles, and may be a seat used at home, for example.

20 Ventilation path 21 Back pad body 22 1st cover member 23 2nd cover member 24 Film-like member 41 Base material 42 Heater wire 211 1st recess 212 2nd recess 213 Hole 221 1st vent 231 2nd vent 412A side Part body 412B Connection part H heater H2 Seat back heater H21 Central part heater H22 Side heater P pad P1 Seat cushion pad P2 Seat back pad S Vehicle seat

Claims (10)

A sheet including a pad on which a ventilation path for passing air is formed, a sheet-shaped heater arranged on a seater-side surface of the pad, and a skin material covering the pad and the heater.
The pad is arranged in the recess and the ventilation path between the pad body having a recess formed so as to be recessed on the surface on the seater side opposite to the seater side and the pad body. With a cover member that forms part of
The heater is arranged closer to the seater than the cover member, and is arranged at a position overlapping the cover member when viewed from the seater side.
The pad body has a hanging groove formed so as to be recessed on the surface on the seater side opposite to the seater side.
The skin material is suspended in the suspension groove by a linear suspension member.
The hanging member is arranged at a position overlapping the cover member in the first direction from the seated side to the side opposite to the seated side, and at a position opposite to the seated side with respect to the heater. Cover,
The pad body is located between the cover member and the hanging member, and has a wall portion sandwiched between the cover member and a portion of the skin material suspended in the hanging groove. Characteristic sheet. The cover member has a surface opposite to the seated side of the cover member and has a contact surface that abuts on the inner surface of the recess.
The sheet according to claim 1, wherein the hanging member is arranged at a position closer to the seated person than the contact surface. The sheet according to claim 2, wherein the hanging member is arranged at a position between the seater-side surface of the pad body and the contact surface in the first direction. The skin material has a sutured portion and has a sutured portion.
The cover member has a suture portion arrangement groove into which the suture portion enters.
The sheet according to any one of claims 1 to 3, wherein the hanging member is arranged at a position opposite to the seater side with respect to the suture portion arrangement groove. The sheet according to claim 4, wherein a part of the heater is arranged in the suture portion arrangement groove and is sandwiched between the cover member and the suture portion. The heater includes a base material and a heater wire supported by the base material.
The base material has a central portion of the base material that covers the cover member.
The sheet according to any one of claims 1 to 5, wherein the central portion of the base material is not arranged in the hanging groove. According to any one of claims 1 to 6, the end portion of the wall portion on the seater side is arranged closer to the seater side than the end portion of the cover member on the seater side. The sheet of description. Any of claims 1 to 7, wherein the surface of the wall portion on the seater side is inclined so as to be located on the seater side as it approaches the hanging groove adjacent to the wall portion. The sheet described in item 1. The surface of the wall portion that connects the surface on the cover member side and the surface on the seater side has a shape that approaches the hanging groove adjacent to the wall portion as it goes toward the seater side. The sheet according to any one of claims 1 to 8, characterized in that. The seat according to any one of claims 1 to 9, wherein the seat cushion, the seat back, and the headrest are provided.

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