Sheet

Abstract

To provide a seat allowing for good air flow through a ventilation path by creating a structure in which a part of a cloth member is inserted into a groove.SOLUTION: A seat comprises a pad P including a ventilation path 230 communicating with a surface, an upholstery C for covering the pad P, and a cloth member (a heater base cloth 300) disposed between the surface of the pad P and the upholstery C. The pad P includes a groove (an upholstered groove 240) opened to the surface and intersecting with the ventilation path 230. The cloth member includes an insertion part 330 inserted into the groove. The insertion part 330 includes a ventilation part 340 (a through-hole 350) with breathability, at a position corresponding to the ventilation path 230.SELECTED DRAWING: Figure 9

Description

[Technical Field]

[0001] The present invention relates to a seat having a fabric member disposed between a pad and a cover. [Background technology]

[0002] Conventionally, a vehicle seat has been known that has a pad with ventilation holes formed on the surface and ventilation channels connected to the ventilation holes, and that achieves air conditioning function by drawing in air through the ventilation holes or blowing air out through the ventilation holes (Patent Document 1).

[0003] Also known is a vehicle seat equipped with a sheet-shaped heater disposed between the pad and the surface (Patent Document 2). In this technology, the heater has a substrate made of nonwoven fabric or the like and a heater wire disposed on the substrate, with a portion of the substrate inserted into a groove formed in the pad. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] International Publication No. 2017 / 002764 [Patent Document 2] Japanese Patent Publication No. 2022-009667 Summary of the Invention [Problem to be solved by the invention]

[0005] When a fabric member such as a substrate is placed between a pad having an air passage and the cover, there is a possibility that the air passage formed in the pad and a groove into which a portion of the fabric member is inserted may intersect. However, even in such a configuration, it is necessary to ensure that the air flowing through the air passage is not obstructed by the portion of the fabric member inserted into the groove. In other words, a structure that allows the air to flow smoothly through the air passage is desired, even in a structure in which a portion of the fabric member is inserted into the groove of the pad.

[0006] Therefore, an object of the present invention is to provide a sheet that has a structure in which a part of the fabric member is inserted into a groove, and that can allow air to flow smoothly through the air passage. Another object is to provide a ventilation section at low cost. Another object is to arrange a part of the fabric member compactly within the groove. [Means for solving the problem]

[0007] The sheet may comprise a pad having an air passage communicating with its surface, a skin covering the pad, and a cloth member arranged between the surface of the pad and the skin, wherein the pad has a groove opening into the surface and intersecting with the air passage, the cloth member has an insertion portion inserted into the groove, and the insertion portion has a breathable ventilation portion at a position corresponding to the air passage.

[0008] By having a ventilation section at a position corresponding to the air passage, the insertion section, which is part of the fabric member, is inserted into a groove that intersects with the air passage, and the air flowing through the air passage can be efficiently circulated through the ventilation section of the insertion section.

[0009] The ventilation portion may be a through hole.

[0010] By forming the ventilation portion as a through hole, the air flowing through the ventilation passage can be smoothly passed through the ventilation portion, and the ventilation portion can be provided at low cost.

[0011] Furthermore, the insertion portion can have a first insertion portion and a second insertion portion that are bent and overlapped along the direction in which the groove extends, and the through hole can have a first through hole formed in the first insertion portion and a second through hole formed in the second insertion portion that faces the first through hole.

[0012] The insertion portion has a first insertion portion and a second insertion portion that are folded and overlap each other, and the through hole has a first through hole formed in the first insertion portion and a second through hole formed in the second insertion portion that faces the first through hole.In this configuration, in which the insertion portion is formed by folding, air flowing through the air passage can be smoothly circulated through the first through hole and the second through hole.

[0013] The first through hole may be a single hole formed in the first insertion portion, and the second through hole may be a single hole formed in the second insertion portion.

[0014] By having one hole for each of the first through hole and the second through hole, it is easy to align the positions of the first through hole and the second through hole when folding and stacking the first insertion portion and the second insertion portion.

[0015] The first through-hole may have a first mark, and the second through-hole may have a second mark located at a position corresponding to the first mark.

[0016] Since the first through hole has a first mark and the second through hole has a second mark located at a position corresponding to the first mark, the insertion portion can be bent to align the first mark with the second mark when being bent to form the insertion portion, thereby aligning the positions of the first through hole and the second through hole.

[0017] The maximum width of the ventilation portion in the direction in which the groove extends may be greater than the maximum width of the portion of the ventilation path that intersects with the ventilation portion.

[0018] The maximum width of the ventilation part is larger than the maximum width of the part of the ventilation path that intersects with the ventilation part, so that the part of the insertion part around the ventilation part is less likely to obstruct the air flowing in the ventilation path, and the air flowing in the ventilation path can be smoothly circulated.

[0019] The insertion portion may have a shape such that the length in the direction in which the groove extends becomes shorter as it approaches the bottom of the groove.

[0020] The length of the insertion portion in the direction in which the groove extends becomes shorter as it approaches the bottom of the groove, so that the insertion portion can be arranged compactly within the groove.

[0021] The seat may also be configured to include a heater wire, the fabric member being a heater base fabric that supports the heater wire, and the heater wire being arranged to avoid the ventilation portion.

[0022] Since the heater wire is arranged to avoid the ventilation part, the heater wire does not obstruct the flow of air near the ventilation part, and therefore the air flowing through the ventilation path can flow smoothly.

[0023] The groove may be a hanging groove into which a portion of the skin is inserted, and the sheet may further include a hanging member for hanging the skin, the hanging member being positioned to avoid the ventilation portion.

[0024] By arranging the hanging member so as to avoid the ventilation portion, the hanging member does not obstruct the flow of air near the ventilation portion, and therefore the air flowing through the ventilation path can flow smoothly.

[0025] The pad may include a seat cushion pad, which is a pad for the seat cushion, and a seat back pad, which is a pad for the seat back; the skin may include a seat cushion skin covering the seat cushion pad and a seat back skin covering the seat back pad; and the cloth member may be arranged at least either between the seat cushion pad and the seat cushion skin or between the seat back pad and the seat back skin. [Effects of the Invention]

[0026] The structure is such that the insert portion, which is part of the fabric member, is inserted into a groove that intersects with the ventilation passage, allowing the air flowing through the ventilation passage to flow smoothly through the ventilation portion of the insert portion.

[0027] Furthermore, since the ventilation portion is a through hole, the air flowing through the ventilation passage can be smoothly passed through the ventilation portion, and the ventilation portion can be provided at low cost.

[0028] Furthermore, since the insertion portion has a first insertion portion and a second insertion portion that are folded and overlap each other, and the through hole has a first through hole formed in the first insertion portion and a second through hole formed in the second insertion portion that faces the first through hole, in a configuration in which the insertion portion is formed by folding, air flowing through the ventilation path can be smoothly circulated through the first through hole and the second through hole.

[0029] Furthermore, since the first through hole and the second through hole are each a single hole, it is easy to align the positions of the first through hole and the second through hole when the first insertion portion and the second insertion portion are folded and stacked.

[0030] Furthermore, since the first through hole has a first mark and the second through hole has a second mark located at a position corresponding to the first mark, the insertion portion can be bent to align the first mark with the second mark when being bent to form the insertion portion, thereby aligning the positions of the first through hole and the second through hole.

[0031] Furthermore, since the maximum width of the ventilation section is larger than the maximum width of the part of the ventilation path that intersects with the ventilation section, the part of the insertion section surrounding the ventilation section is less likely to obstruct the air flowing through the ventilation path, allowing the air to flow smoothly through the ventilation path.

[0032] Furthermore, the length of the insertion portion in the direction in which the groove extends becomes shorter as it approaches the bottom of the groove, so that the insertion portion can be arranged compactly within the groove.

[0033] Furthermore, since the heater wire is arranged to avoid the ventilation portion, the heater wire does not interfere with the flow of air near the ventilation portion, and therefore the air flowing through the ventilation path can flow smoothly.

[0034] Furthermore, since the hanging member is positioned to avoid the ventilation section, the hanging member does not obstruct the flow of air near the ventilation section, allowing the air to flow smoothly through the ventilation path. [Brief explanation of the drawings]

[0035] [Figure 1] FIG. 1 is a perspective view of a seat according to an embodiment. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. [Figure 5] FIG. 1 is a perspective view of a cover pad and a film. [Figure 6] FIG. 1(a) is a front view of the lateral groove of the seat back pad, and FIG. 1(b) is an enlarged partial cross-sectional view of the seat back corresponding to the cross section BB in FIG. [Figure 7] FIG. [Figure 8] FIG. 2 is a front view of the heater before being folded. [Figure 9] FIG. 2 is a central cross-sectional view of the upper part of the seat back. [Figure 10] 10 is a partially enlarged cross-sectional view of a seat back corresponding to the cross section XX in FIG. 9. DETAILED DESCRIPTION OF THE INVENTION

[0036] Next, an embodiment of the seat will be described. In this specification, front, back, left, right, top and bottom correspond to front, back, left, right, top and bottom as seen from the perspective of a person sitting in the seat (seat occupant). As shown in FIG. 1, the seat according to the embodiment is configured as a vehicle seat to be mounted on a vehicle, specifically as a vehicle seat S to be mounted on an automobile as an example of a vehicle.

[0037] The vehicle seat S includes a seat cushion S1, a seat back S2, and a headrest S3. The vehicle seat S also includes a seat frame F (see FIG. 2), a pad P that covers the seat frame F, and a cover C that covers the seat frame F and the pad P.

[0038] The pad P is made of, for example, urethane foam, etc. The pad P includes a seat cushion pad P1 which is a pad for the seat cushion S1, and a seat back pad P2 which is a pad for the seat back S2. The cover C is made of, for example, fabric, leather, etc. The cover C includes a seat cushion cover C1 that covers the seat cushion pad P1, and a seat back cover C2 that covers the seat back pad P2.

[0039] As shown in FIG. 2, the seat frame F includes a seat cushion frame F1 that forms a frame of the seat cushion S1, and a seat back frame F2 that forms a frame of the seat back S2.

[0040] The seat cushion frame F1 includes left and right seat cushion side frames 11, a front frame 12, and a rear frame 13. The front frame 12 connects the front portions of the seat cushion side frames 11 together, and the rear frame 13 connects the rear portions of the seat cushion side frames 11 together. The seat cushion S1 is formed by covering the seat cushion frame F1 with a seat cushion pad P1 and a seat cushion cover C1.

[0041] The seatback frame F2 includes left and right lower side frames 22, a pipe frame 23, a lower frame 24, and a bridging frame 25. The pipe frame 23 includes left and right upper side frames 23A and an upper frame 23B that connects the upper ends of the upper side frames 23A. The upper side frames 23A are connected to the lower side frames 22 and, together with the lower side frames 22, constitute seatback side frames 21, which are the left and right frames of the seatback S2.

[0042] A holder 26 that holds a headrest guide is fixed to the upper frame 23B. The lower frame 24 connects the lower parts of the seatback side frames 21, and the bridging frame 25 is disposed below the upper frame 23B and connects the upper parts of the seatback side frames 21. The seatback S2 is formed by covering the seatback frame F2 with a seatback pad P2 and a seatback skin C2.

[0043] As shown in Fig. 3, the seatback pad P2 has a central portion P21 and left and right side portions P22 that are provided on both the left and right sides of the central portion P21 and protrude forward from the central portion P21. The seatback pad P2 has third marks 201 on the left and right side portions P22. The third marks 201 are, for example, depressions, grooves, or notches formed near the front end of the lower part of each side portion P22. The third marks 201 function as marks when the seatback cover C2 is placed over the seatback pad P2.

[0044] More specifically, the seatback upholstery C2 has a pair of fourth marks (not shown) made up of, for example, a line drawn with a pen or the like, a stitch, or a sewn tag, on its rear surface at positions corresponding to the left and right third marks 201. When the seatback upholstery C2 is placed over the seatback pad P2, the position of the seatback upholstery C2 can be adjusted relative to the seatback pad P2 by placing the seatback upholstery C2 over the seatback pad P2 so that the positions of the fourth marks on the seatback upholstery C2 and the left and right third marks 201 on the seatback pad P2 are aligned.

[0045] The seat back pad P2 has a pad body 210 and a cover pad 220. The cover pad 220 includes a plate-shaped first cover pad 221 and a plate-shaped second cover pad 222 disposed on the first cover pad 221. As shown in Fig. 4, a recess 211 into which the cover pad 220 is fitted is formed in the pad body 210. The recess 211 is formed to be recessed rearward, and includes a first recess 211A into which the first cover pad 221 is fitted, and a second recess 211B into which the second cover pad 222 is fitted.

[0046] The seat back pad P2 has an air passage 230 that communicates with its surface, specifically, its front surface. The air passage 230 has an air hole 231, an air groove 232, and a communication hole 233.

[0047] The ventilation groove 232 and the communication hole 233 are formed in the pad main body 210. The ventilation groove 232 has a first groove 232A that is generally ladder-shaped and extends vertically and horizontally, a second groove 232B that also extends horizontally, a third groove 232C that extends vertically, and a fourth groove 232D that connects to the communication hole 233.

[0048] The first groove 232A is formed so as to recess rearward from the bottom surface of the first recess 211A, and the second groove 232B is formed so as to recess rearward from the bottom surface of the second recess 211B. The third groove 232C connects the left-right center portion of the upper end of the first groove 232A to the left-right center portion of the lower end of the second groove 232B. The third groove 232C is formed so as to be recessed rearward from the bottom surface of the first recess 211A to the bottom surface of the second recess 211B. The fourth groove 232D is formed so as to be recessed rearward from the bottom surface of the second recess 211B. The fourth groove 232D extends left and right, and its left end is connected to the third groove 232C.

[0049] The communication hole 233 is a through-hole that passes through the fourth groove 232D from the right end to the rear. The communication hole 233 communicates with a duct 40 of the first air conditioner AC, which will be described later. The ventilation holes 231 are through-holes that penetrate from front to back and are formed in the cover pad 220. A plurality of ventilation holes 231 are formed in each of the first cover pad 221 and the second cover pad 222 at positions facing the ventilation grooves 232. More specifically, the ventilation holes 231 in the first cover pad 221 are formed at a position facing the first groove 232A, and the ventilation holes 231 in the second cover pad 222 are formed at a position facing the second groove 232B.

[0050] The seat back S2 is equipped with a first air conditioner AC that performs air conditioning by drawing in air through an air vent 231. The first air conditioner AC is equipped with a blower 30, a duct 40, and a bracket 50 (see FIG. 2) for fixing the blower 30 and the duct 40 to the bridge frame 25 of the seat back frame F2. The blower 30 is, for example, a sirocco fan, and includes a case, blade members arranged in the case, and a motor for rotating the blade members. The duct 40 connects the air intake of the blower 30 to an air passage 230 (communication hole 233) in the seat back pad P2.

[0051] Air drawn in through the ventilation hole 231 flows into the duct 40 through the ventilation groove 232 and the communication hole 233. The air that has flowed into the duct 40 passes through the inside of the duct 40, is drawn into the blower 30 through the intake port of the blower 30, and is then discharged to the outside of the blower 30 through the outlet port of the blower 30. The seatback cover C2 (see FIG. 1) may have a through-hole for passing air at a position facing the ventilation hole 231 of the seatback pad P2, depending on the material, for example.

[0052] As shown in FIG. 5, the seat back S2 includes a film 260 attached to the back surface of the cover pad 220, specifically, to the rear surface. The film 260 is made of a material that is less breathable than the cover pad 220. For example, the film 260 is made of a resin film. The film 260 includes a first film 261 and a second film 262.

[0053] The first film 261 is formed in a size and shape to cover almost the entire back surface of the first cover pad 221, and is attached to the back surface of the first cover pad 221 with an adhesive or the like. The first film 261 has a plurality of through holes 261A for passing air at positions facing the ventilation holes 231 of the first cover pad 221. The first cover pad 221 is fitted into the first recess 211A of the pad main body 210 (see FIG. 4) with the first film 261 attached to the back surface. The first cover pad 221 may be attached to the bottom surface of the first recess 211A with the first film 261 interposed therebetween with an adhesive or the like.

[0054] The second film 262 is formed in a size and shape to cover almost the entire back surface of the second cover pad 222, and is attached to the back surface of the second cover pad 222 with an adhesive or the like. The second film 262 has a plurality of through holes 262A for passing air at positions facing the ventilation holes 231 of the second cover pad 222. The second cover pad 222 is fitted into the second recess 211B of the pad main body 210 (see FIG. 4) with the second film 262 attached to the back surface. The second cover pad 222 may be attached to the bottom surface of the second recess 211B with the second film 262 interposed therebetween with an adhesive or the like.

[0055] By providing such film 260 that covers almost the entire back surface of cover pad 220, the front opening of ventilation groove 232 can be covered with film 260, as shown in Fig. 9, and therefore air flowing through ventilation groove 232 (air passage 230) can be prevented from leaking to the outside. Furthermore, since film 260, more specifically, part of second film 262, is disposed between the occupant sitting in vehicle seat S and blower 30 of first air conditioner AC, the operating noise of blower 30 transmitted to the occupant side can be reduced.

[0056] 3, the seat back pad P2 further has a hanging groove 240 as an example of a groove, and left and right seam arrangement grooves 250. The hanging groove 240 and the seam arrangement grooves 250 are formed as grooves that open forward on the surface of the seat back pad P2, specifically, on the front surface.

[0057] The hanging groove 240 is a groove for hanging the seat back upholstery C2, and in this embodiment, has a substantially H-shape. More specifically, the hanging groove 240 has left and right vertical grooves 241 extending vertically and horizontal grooves 242 extending horizontally so as to connect the vertical centers of the left and right vertical grooves 241. The left and right vertical grooves 241 are formed one each between the center portion P21 and the left and right side portions P22 of the seat back pad P2, and the horizontal grooves 242 are formed between the first cover pad 221 and the second cover pad 222.

[0058] 4, hanging groove 240 intersects with ventilation channel 230. More specifically, lateral groove 242 constituting hanging groove 240 intersects with third groove 232C constituting ventilation channel 230. In this embodiment, lateral groove 242 intersects with third groove 232C at right angles to form a cross shape. Hanging groove 240 including lateral groove 242 is formed as a deeper groove than ventilation groove 232 including third groove 232C.

[0059] As shown in FIG. 6(a), the pad main body 210 of the seat back pad P2 has a pair of protrusions 270 at each of the left and right ends of the lateral groove 242. The pair of protrusions 270 are located on both the left and right sides of the third groove 232C (air passage 230). Of the pair of protrusions 270, one protrusion 270 protrudes downward from the upper surface of the inner surface of the lateral groove 242, and the other protrusion 270 protrudes upward from the lower surface of the inner surface of the lateral groove 242 toward the one protrusion 270.

[0060] When the seat back upholstery C2 is not hung in the lateral groove 242, the pair of protrusions 270 have a small gap therebetween. As shown in FIG. 6(b), when the seat back upholstery C2 is hung in the lateral groove 242, this gap is closed by a part of the seat back upholstery C2 (hanging portion C22) getting between the pair of protrusions 270. When the seat back upholstery C2 is hung in the lateral groove 242, each protrusion 270 is pressed by a part of the seat back upholstery C2 (hanging portion C22) and elastically deforms so as to be crushed. The provision of such protrusions 270 can prevent air flowing through the ventilation groove 232 (ventilation path 230) from leaking from the lateral groove 242 to the vertical groove 241, etc.

[0061] The vehicle seat S further includes a hanging member 60 for hanging the cover C into the hanging groove 240, and the seatback cover C2 has a hanging portion C22 that is hung into the hanging groove 240. A hanging wire 280 for hanging the seatback cover C2 is embedded in the pad main body 210 by insert molding. The hanging wire 280 is partially exposed within the hanging groove 240. The seatback cover C2 is hung into the hanging groove 240 by engaging the hanging member 60 attached to the tip of the hanging portion C22 with the hanging wire 280.

[0062] 3, the seam placement groove 250 is a groove into which a seam (not shown) of the seat back upholstery C2 is placed. The seam placement groove 250 is provided so as to extend diagonally upward and outward in the left-right direction from near the point where the vertical groove 241 of the hanging groove 240 intersects with the horizontal groove 242. The seam placement groove 250 is formed as a groove shallower than the hanging groove 240.

[0063] The seat cushion pad P1 has a central portion P11 and left and right side portions P12 provided on both left and right sides of the central portion P11 and projecting upward beyond the central portion P11. The seat cushion pad P1 also has a pad main body 110 and a plate-shaped cover pad 120.

[0064] The cover pad 120 is fitted into a recess formed to be recessed downward in the pad main body 110. The seat cushion pad P1 has an air passage 130 that communicates with the surface of the seat cushion pad P1, specifically, with the upper surface. The air passage 130 includes an air hole 131 that is formed in the cover pad 120 and penetrates from top to bottom.

[0065] In this embodiment, the seat cushion S1 is equipped with a second air conditioner (not shown) that achieves an air conditioning function by blowing air through the air vents 131. The seat cushion cover C1 (see FIG. 1) may have through holes for passing air at locations facing the air vents 131 of the seat cushion pad P1, depending on, for example, the material.

[0066] As shown in Fig. 1, the seat back S2 includes a heater H disposed between the seat back pad P2 and the seat back cover C2. The heater H is a so-called planar heater, and is disposed in a central portion P21 (see Fig. 3) of the seat back pad P2. The heater H is disposed by attaching a heater base fabric 300 (described later) to the seat back pad P2 with an adhesive or the like.

[0067] 7 and 8, the heater H includes a heater base cloth 300 as an example of a cloth member, and a heater wire 400 that generates heat when energized. Note that the heater wire 400 is not shown in FIG.

[0068] The heater base cloth 300 is a member that supports the heater wire 400 and is made of, for example, a nonwoven fabric. As shown in Fig. 9, the heater base cloth 300 is disposed between the surface of the pad P and the cover C. Specifically, the heater base cloth 300 is disposed between the seat back pad P2 and the seat back cover C2. More specifically, the heater base cloth 300 is disposed between the front surface of the center portion P21 (see Fig. 3) of the seat back pad P2 and the seat back cover C2.

[0069] The heater base cloth 300 integrally includes a first fabric portion 310, a second fabric portion 320, and one insertion portion 330. The heater base cloth 300 may be formed from a single piece of fabric, or may be formed by sewing together multiple pieces of fabric.

[0070] 3, the first fabric portion 310 is disposed so as to cover the first cover pad 221 from the front side, and the second fabric portion 320 is disposed so as to cover the lower part of the second cover pad 222 from the front side. The lower end of the first fabric portion 310 extends to the lower end of the seat back pad P2 and is inserted between the seat back pad P2 and the seat cushion S1. The first fabric portion 310 has a plurality of through holes 311 (see FIG. 7) for passing air at positions facing the ventilation holes 231 formed in the first cover pad 221.

[0071] As shown in Fig. 9, the insertion portion 330 is a portion that is inserted into the hanging groove 240. More specifically, the insertion portion 330 is inserted into the horizontal groove 242 of the hanging groove 240. The insertion portion 330 is provided to connect the first fabric portion 310 and the second fabric portion 320. More specifically, as shown in Figs. 7 and 8, the insertion portion 330 connects the center portion in the left-right direction of the upper end of the first fabric portion 310 and the center portion in the left-right direction of the lower end of the second fabric portion 320.

[0072] The insertion portion 330 has a first insertion portion 331 and a second insertion portion 332. In this embodiment, the insertion portion 330 is formed in a state in which the first insertion portion 331 and the second insertion portion 332 are folded and overlapped along the left-right direction, which is the direction in which the horizontal groove 242 of the hanging groove 240 extends.

[0073] In detail, the insertion portion 330 is formed by folding the imaginary dashed lines shown in FIG. 8 between the first fabric portion 310 and the first insertion portion 331 and between the second fabric portion 320 and the second insertion portion 332 in a mountain fold along the left-right direction, and folding the imaginary dot-dash line shown between the first insertion portion 331 and the second insertion portion 332 in a valley fold along the left-right direction to overlap the first insertion portion 331 and the second insertion portion 332.

[0074] The insertion portion 330 has a ventilation portion 340 that is breathable. In this embodiment, the ventilation portion 340 is a through hole 350. That is, the insertion portion 330 has the through hole 350. The through hole 350 has a first through hole 351 formed in the first insertion portion 331 and a second through hole 352 formed in the second insertion portion 332. The first through hole 351 is a hole formed in the first insertion portion 331, and the second through hole 352 is a hole formed in the second insertion portion 332.

[0075] The first through hole 351 and the second through hole 352 are provided in positions facing each other when the first insertion portion 331 and the second insertion portion 332 are overlapped. As a result, when the first insertion portion 331 and the second insertion portion 332 are overlapped, the first through hole 351 and the second through hole 352 communicate with each other to form the through hole 350. In this embodiment, the first through hole 351 and the second through hole 352 have approximately the same shape. Furthermore, the first through hole 351 and the second through hole 352 have approximately the same size.

[0076] The first through-hole 351 has a first mark 353, and the second through-hole 352 has a second mark 354. In this embodiment, the first mark 353 is formed as a substantially triangular recess that is recessed downward on the lower edge of the first through-hole 351, and the second mark 354 is formed as a substantially triangular recess that is recessed upward on the upper edge of the second through-hole 352.

[0077] The second mark 354 is located at a position corresponding to the first mark 353. In this embodiment, the second mark 354 is located at a position corresponding to the first mark 353 in the left-right direction. More specifically, the first mark 353 is located at the center in the left-right direction of the lower edge of the first through hole 351, and the second mark 354 is located at the center in the left-right direction of the upper edge of the second through hole 352. When forming the insertion portion 330, the first through hole 351 and the second through hole 352 can be aligned by bending the insertion portion 330 so that the first mark 353 and the second mark 354 are aligned.

[0078] 10 , the insertion portion 330 has a shape in which its left-right length decreases as it approaches the bottom of the hanging groove 240. More specifically, the insertion portion 330 has a generally trapezoidal shape in which its left-right length decreases as it approaches the bottom of the horizontal groove 242. The through holes 350 (first through hole 351 and second through hole 352) formed in the insertion portion 330 have a generally triangular shape in which the spacing between them in the left-right direction decreases as they approach the bottom of the horizontal groove 242.

[0079] The through-hole 350 serving as the ventilation portion 340 is provided at a position corresponding to the ventilation path 230 formed in the seat back pad P2. Specifically, the through-hole 350 is provided at a position overlapping the ventilation path 230 when viewed from a direction perpendicular to both the depth direction of the hanging groove 240 and the extension direction of the hanging groove 240 (lateral groove 242) as shown in FIG. 10. In this embodiment, the through-hole 350 is provided at a position overlapping with the third groove 232C of the ventilation groove 232 that constitutes the ventilation path 230. Simply put, the through-hole 350 (ventilation portion 340) is provided at a position that allows air flowing through the ventilation path 230 to pass through the through-hole 350 (ventilation portion 340).

[0080] In the left-right direction, the maximum width W1 of the ventilation portion 340 is larger than the maximum width W2 of the portion of the ventilation passage 230 that intersects with the ventilation portion 340. Specifically, the maximum width W1 of the through hole 350 is larger than the maximum width W2 of the third groove 232C, which is the portion of the ventilation passage 230 that intersects with the ventilation portion 340. When viewed from a direction perpendicular to both the depth direction of the hanging groove 240 and the direction in which the hanging groove 240 (horizontal groove 242) extends, the through hole 350 has a substantially triangular shape, and the third groove 232C has a substantially rectangular shape. In this embodiment, a portion of the insertion portion 330 surrounding the through hole 350 overlaps with the third groove 232C.

[0081] As shown in FIG. 8 , the heater wire 400 is attached to the heater base fabric 300 with an adhesive or the like. The heater wire 400 is arranged so as to avoid the ventilation portion 340 of the heater base fabric 300. Specifically, the heater wire 400 has a first heating portion 410 arranged in the first fabric portion 310, a second heating portion 420 arranged in the second fabric portion 320, and a connecting portion 430 arranged in the insertion portion 330. The connecting portion 430 connects the first heating portion 410 and the second heating portion 420. The connecting portion 430 is arranged so as to pass through the left and right portions of the first through-hole 351 of the first insertion portion 331, and so as to pass through the left and right portions of the second through-hole 352 of the second insertion portion 332. In other words, the connecting portion 430 is not arranged inside the first through-hole 351 or the second through-hole 352.

[0082] 10, the hanging member 60 for hanging the seat back upholstery C2 into the lateral groove 242 is positioned to avoid the ventilation portion 340 of the heater base fabric 300. More specifically, the hanging member 60 is positioned outward in the left-right direction from the ventilation portion 340. Furthermore, the hanging member 60 is positioned outward in the left-right direction from the insertion portion 330.

[0083] According to the vehicle seat S of this embodiment, the insertion portion 330 has a ventilation portion 340 at a position corresponding to the air passage 230, and the insertion portion 330 is inserted into the hanging groove 240 that intersects with the air passage 230, so that the air flowing through the air passage 230 can be efficiently circulated through the ventilation portion 340 of the insertion portion 330.

[0084] Furthermore, since the ventilation section 340 is the through-hole 350, the air flowing through the ventilation path 230 can be smoothly passed through the ventilation section 340, and the ventilation section 340 can be provided at low cost.

[0085] Furthermore, the insertion portion 330 has a first insertion portion 331 and a second insertion portion 332 that are folded and overlap each other, and the through hole 350 has a first through hole 351 formed in the first insertion portion 331 and a second through hole 352 formed in the second insertion portion 332 that faces the first through hole 351. As a result, in a configuration in which the insertion portion 330 is formed by folding, the air flowing through the ventilation path 230 can flow well through the first through hole 351 and the second through hole 352.

[0086] Furthermore, since first through hole 351 and second through hole 352 are each a single hole, it is easy to align the positions of first through hole 351 and second through hole 352 when first inserting portion 331 and second inserting portion 332 are folded and stacked.

[0087] Furthermore, since the first through hole 351 has a first mark 353 and the second through hole 352 has a second mark 354 located at a position corresponding to the first mark 353, when bending the insertion portion 330 to form it, the insertion portion 330 can be bent so that the first mark 353 and the second mark 354 are aligned, thereby aligning the positions of the first through hole 351 and the second through hole 352.

[0088] Furthermore, since the maximum width W1 of the ventilation section 340 is larger than the maximum width W2 of the portion (third groove 232C) of the ventilation path 230 that intersects with the ventilation section 340, the portion of the insertion section 330 surrounding the ventilation section 340 is less likely to obstruct the air flowing through the ventilation path 230, and the air flowing through the ventilation path 230 can be smoothly circulated.

[0089] Furthermore, the length of insertion portion 330 in the left-right direction becomes shorter as it approaches the bottom of hanging groove 240, which allows insertion portion 330 to be arranged compactly within hanging groove 240. Furthermore, since there is only one insertion portion 330, insertion portion 330 can be arranged compactly within hanging groove 240 compared to, for example, a case where there are multiple portions inserted into the hanging groove.

[0090] Furthermore, since the heater wire 400 is arranged to avoid the ventilation section 340, the heater wire 400 does not obstruct the flow of air near the ventilation section 340, allowing the air flowing through the ventilation path 230 to flow smoothly.

[0091] Furthermore, since the hanging member 60 is positioned to avoid the ventilation section 340, the hanging member 60 does not obstruct the flow of air near the ventilation section 340, allowing the air flowing through the ventilation path 230 to flow smoothly.

[0092] Although the embodiment has been described above, the seat can be modified as appropriate as exemplified below.

[0093] In the above embodiment, first through hole 351 is a single hole formed in first insertion portion 331, but for example, the first through hole may be a plurality of holes formed in the first insertion portion. Similarly, in the above embodiment, second through hole 352 is a single hole formed in second insertion portion 332, but for example, the second through hole may be a plurality of holes formed in the second insertion portion. Note that both the first through hole and the second through hole may be configured with a plurality of holes, or one may be configured with a single hole and the other with a plurality of holes.

[0094] In the above embodiment, the insertion portion 330 has a generally trapezoidal shape whose left-right length decreases as it approaches the bottom of the hanging groove 240. However, for example, the insertion portion may have a generally rectangular shape. In this case, the size of the ventilation portion can be configured to be larger than the size of the portion of the ventilation path that intersects with the ventilation portion when viewed from a direction perpendicular to both the depth direction of the groove and the extension direction of the groove. This allows the air flowing through the ventilation path to flow more efficiently through the ventilation portion of the insertion portion.

[0095] In the above embodiment, the first through hole 351 has the first mark 353, and the second through hole 352 has the second mark 354, but for example, the first mark and the second mark may not be provided. Also, in the above embodiment, the insertion portion 330 is formed by overlapping the first insertion portion 331 and the second insertion portion 332, but for example, the insertion portions may have a structure in which they do not overlap.

[0096] In the above embodiment, the ventilation portion 340 is the through-hole 350, but for example, the ventilation portion may be a mesh. Also, for example, the ventilation portion may be configured from a fabric that is more breathable than the fabric that forms the surrounding portion of the fabric member.

[0097] In the above embodiment, the seat back S2 is configured to achieve an air conditioning function by drawing in air through the air vent 231, but it may also be configured to achieve an air conditioning mechanism by blowing air out through the air vent 231. Also, for example, it may be configured to be able to switch between drawing in and blowing out air by switching the rotation direction of the blade members of the blower 30. Also, in the above embodiment, a sirocco fan is exemplified as the blower 30, but the blower may be, for example, a propeller fan, a turbo fan, or the like.

[0098] The configuration of the seat back S2 described in the above embodiment may be applied to the seat cushion S1. That is, in the above embodiment, the heater base fabric 300 as a fabric member is provided in the seat back S2, but, for example, the fabric member may be provided in the seat cushion S1 instead of the seat back S2. Furthermore, the fabric member may be disposed between the seat cushion pad P1 and the seat cushion cover C1.

[0099] Alternatively, the fabric member may be disposed both between the seat cushion pad P1 and the seat cushion cover C1 and between the seat back pad P2 and the seat back cover C2. For example, the fabric member may include a first fabric member and a second fabric member, with the first fabric member being disposed between the seat cushion pad P1 and the seat cushion cover C1 and the second fabric member being disposed between the seat back pad P2 and the seat back cover C2.

[0100] In the above embodiment, a vehicle seat S applied to an automobile is exemplified, but the vehicle seat may be, for example, a seat applied to a railway vehicle or the like. Also, in the above embodiment, a vehicle seat S is exemplified as a vehicle seat, but the vehicle seat may be, for example, a seat applied to an airplane, a ship, or the like. Also, in the above embodiment, a vehicle seat is exemplified as a seat, but the seat may be, for example, a seat used in an amusement facility, a relaxation facility, or at home.

[0101] In the above embodiment, the groove formed in the pad P was a hanging groove 240 into which a portion of the cover C was inserted, but for example, the groove may be a groove other than the hanging groove formed to enhance the design of the seat.

[0102] In the above embodiment, the fabric member is the heater base fabric 300 of the heater H, but for example, the fabric member may not be provided with a heater wire. Also, the sheet may not be provided with a heater wire (planar heater). Also, in the above embodiment, the heater base fabric 300 as the fabric member is made of nonwoven fabric, but for example, the fabric member may be made of woven fabric, felt, knitted fabric, etc.

[0103] The elements described in the above-described embodiment and modified examples may be implemented in any combination. [Explanation of symbols]

[0104] 60 Hanging member 230 Ventilation Channel 240 Hanging groove 242 Yokomizo 300 heater base fabric 330 Insertion part 331 First insertion part 332 Second insertion part 340 Ventilation section 350 through hole 351 First Through Hole 352 Second Through Hole 353 First Landmark 354 Second Landmark 400 heater wire C epidermis C1 Seat cushion cover C2 seat back skin P Pad P1 seat cushion pad P2 seat back pad S vehicle seat S1 seat cushion S2 seat back

Claims

1. A seat comprising: a pad having an air passage communicating with a surface thereof; a skin covering the pad; a fabric member disposed between the surface of the pad and the skin; and a heater wire; the pad has a groove that opens to the surface and intersects with the air passage; The fabric member has an insertion portion inserted into the groove, the insertion portion has a ventilation portion having air permeability at a position corresponding to the ventilation path, the fabric member is a heater base fabric that supports the heater wire, The seat is characterized in that the heater wire is arranged so as to avoid the ventilation portion.

2. The sheet according to claim 1 , wherein the ventilation portion is a through-hole.

3. The insertion portion has a first insertion portion and a second insertion portion that are bent along an extending direction of the groove and overlap each other, The sheet according to claim 2, characterized in that the through holes include a first through hole formed in the first insertion portion and a second through hole formed in the second insertion portion and facing the first through hole.

4. the first through hole is a single hole formed in the first insertion portion, The sheet according to claim 3 , wherein the second through-hole is a single hole formed in the second insertion portion.

5. the first through hole has a first mark; The sheet according to claim 4 , wherein the second through-hole has a second mark located at a position corresponding to the first mark.

6. 2. The sheet according to claim 1, wherein the maximum width of the ventilation portion in the direction in which the groove extends is greater than the maximum width of the portion of the ventilation path that intersects with the ventilation portion.

7. The sheet according to claim 1 , wherein the insertion portion has a shape such that the length in the direction in which the groove extends becomes shorter as it approaches the bottom of the groove.

8. the groove is a hanging groove into which a part of the skin is inserted, Further provided is a hanging member for hanging the skin, The seat according to claim 1 , wherein the hanging member is arranged so as to avoid the ventilation portion.

9. The pad includes a seat cushion pad which is a pad for the seat cushion and a seat back pad which is a pad for the seat back, the cover includes a seat cushion cover that covers the seat cushion pad and a seat back cover that covers the seat back pad, 2. The seat according to claim 1, wherein the fabric member is disposed at least one of between the seat cushion pad and the seat cushion cover and between the seat back pad and the seat back cover.

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