Vehicle seat

Abstract

To provide a vehicle seat which allows an occupant to feel flow of air, even on a slide pad side.SOLUTION: A vehicle seat 10 is configured so that a channel 42 which is formed between a pad body 22 of a seat cushion pad 20 and a seal member 34, reaches a facing surface 22B of a slide pad 24 on the pad body 22, and air in the channel 42 flows by a blower 36. A seat cushion skin 46 is configured so that a skin body part 48 covering the pad body 22 has air permeability, and a movable skin part 52 provided between the pad body 22 and the slide pad 24 is deformed by slide of the slide pad 24. The seat cushion skin 46 has a closing skin part 56 for closing a gap 66 between an end part of the slide pad 24 side on the seal member 34 and the skin body part 48.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present invention relates to a vehicle seat. [Background technology]

[0002] The following Patent Document 1 discloses a vehicle seat with an air conditioning function. A flow path is formed on the cushion pad of this vehicle seat on the side opposite to the seating surface, and a plurality of through holes that open on the seating surface are connected to the flow path. When an intake device connected to the flow path is activated, air is sucked in through the plurality of through holes, cooling the thighs and buttocks of the seated person. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-90268 A Summary of the Invention [Problem to be solved by the invention]

[0004] In a vehicle seat in which the length of the seat cushion in the front-rear direction can be adjusted, a slide pad (extension pad) constituting the front part of the seat cushion pad slides toward and away from the pad body of the seat cushion pad in the front-rear direction of the seat. In a vehicle seat provided with such a slide pad, an air conditioning flow path is formed only in the pad body, and there is a problem that the occupant cannot feel the air flow on the slide pad side.

[0005] SUMMARY OF THE PRESENT DISCLOSURE In consideration of the above, an object of the present invention is to provide a vehicle seat that allows an occupant to feel air flow even on the slide pad side. [Means for solving the problem]

[0006] A vehicle seat of a first aspect includes a pad main body constituting a part of a pad that supports an occupant on a seating surface, a slide pad constituting another part of the pad and adapted to be moved toward and away from the pad main body by sliding along the seating surface, a sealing member provided on the pad main body on the opposite side to the seating surface and forming a flow path between the pad main body and the sealing member and reaching a surface of the pad main body facing the slide pad, a blower for circulating air in the flow path, and a skin covering the pad main body and the slide pad, the skin having a breathable epidermis main body part covering the pad main body and a movable epidermis part positioned between the pad main body and the slide pad that is deformed by the sliding, and the skin has a closing epidermis part that closes a gap between the end of the sealing member on the slide pad side and the epidermis main body part.

[0007] In the vehicle seat of the first aspect, an occupant is supported on the seating surface of the pad. A part of the pad is constituted by a pad body, and the other part of the pad is constituted by a slide pad. The slide pad is brought into contact with and separated from the pad body by sliding along the seating surface. A seal member is provided on the pad body on the opposite side to the seating surface. The seal member forms a flow path between the pad body and the seal member, which reaches the surface of the pad body facing the slide pad. Air in this flow path is moved by a blower. The pad body and the slide pad are covered with a skin. The skin has a skin main body part that covers the pad body and has air permeability, and a movable skin part located between the pad body and the slide pad is deformed by the above-mentioned sliding.

[0008] The gap between the pad body and the slide pad communicates with the occupant side space through the skin body of the skin, so that the occupant can feel the air flow even on the slide pad side when the blower is operated. The skin has a closing skin part that closes the gap between the end of the seal member on the slide pad side and the skin body. This makes it possible to prevent unnecessary air flow through the gap.

[0009] The vehicle seat of the second aspect is the same as the first aspect, in which one end of the closed cover portion is sewn together with the sewn portion of the cover body portion and the movable cover portion.

[0010] According to the vehicle seat of the second aspect, one end of the closed skin portion of the skin is sewn to the sewn portion between the skin main body portion and the movable skin portion of the skin, thereby reducing the number of sewing steps.

[0011] The vehicle seat of a third aspect is the vehicle seat of the first or second aspect, wherein the other end of the closed cover portion is fastened to a wire embedded in the pad main body by using a fastener.

[0012] According to the vehicle seat of the third aspect, the other end of the closed skin portion of the skin is secured to the wire embedded in the pad body using a fastening device, so that the other end of the closed skin portion can be firmly secured to the pad body.

[0013] The vehicle seat of a fourth aspect is the third aspect, wherein the other end of the closing cover portion is fastened to the sealing member by a hook-and-loop fastener.

[0014] According to the vehicle seat of the fourth aspect, the other end of the closed skin portion of the skin is engaged with the sealing member using a hook-and-loop fastener, thereby facilitating the task of engaging the other end of the closed skin portion with the sealing member.

[0015] A fifth aspect of the vehicle seat is any one of the first to fourth aspects, in which the pad is a seat cushion pad provided on a seat cushion that supports the buttocks and thighs of a seated occupant, and the slide pad is arranged on the front side of the seat relative to the pad main body and slides in the fore-and-aft direction of the seat relative to the pad main body.

[0016] In the vehicle seat of the fifth aspect, the buttocks and thighs of an occupant seated on the seat cushion are supported by the seating surface of the seat cushion pad. The slide pad of the seat cushion pad is disposed on the front side of the seat with respect to the pad body of the seat cushion pad and slides in the front-rear direction of the seat with respect to the pad body. This allows the length of the seat cushion in the front-rear direction to be adjusted according to the physique of the occupant. Effect of the Invention

[0017] As described above, according to the vehicle seat of the present invention, the occupant can feel the air flow even on the slide pad side. [Brief description of the drawings]

[0018] [Figure 1] 1 is a perspective view showing a vehicle seat according to an embodiment; [Diagram 2] 1 is a perspective view showing a seat cushion of a vehicle seat according to an embodiment; [Diagram 3] FIG. 2 is an exploded perspective view showing a configuration of a portion of the seat cushion. [Figure 4] FIG. 2 is a plan view showing a seat cushion pad. [Diagram 5] FIG. 2 is a bottom view showing a pad body of the seat cushion pad. [Figure 6] 11 is a cross-sectional view showing a configuration of a portion of the seat cushion, illustrating a state in which the slide pad is located at the rearmost position of the sliding range. FIG. [Figure 7] 7 is a cross-sectional view corresponding to FIG. 6, illustrating a state in which a slide pad of the seat cushion pad is located at the frontmost position in the sliding range. FIG. [Figure 8] 13 is a bottom view showing the configuration of the peripheral member including the front part of the pad main body. FIG. [Figure 9] 7 is a cross-sectional view corresponding to FIG. 6 and showing a part of a seat cushion according to a comparative example. [Figure 10] 8 is a cross-sectional view corresponding to FIG. 7 and showing a part of a seat cushion according to a comparative example. [Figure 11] 9 is a bottom view corresponding to FIG. 8 and showing a modified example of the embodiment. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Hereinafter, a vehicle seat 10 according to one embodiment of the present invention will be described with reference to Figs. 1 to 8. In each drawing, some reference numerals may be omitted in order to make the drawings easier to see. Arrows FR, RH, and UP, which are appropriately written in each drawing, respectively indicate the front, right, and top of the vehicle seat 10. Hereinafter, when the front-rear, left-right, top-bottom directions are used in the description, they indicate directions relative to the vehicle seat 10.

[0020] 1, a vehicle seat 10 according to this embodiment includes a seat cushion 12 that supports the buttocks and thighs of an occupant, a seat back 14 that supports the back of the occupant, and a headrest 16 that supports the head of the occupant. The seat cushion 12 includes a seat cushion frame 18 that is a framework member, a seat cushion pad (pad) 20 that is a padding material, and a seat cushion skin 48 that is a skin that covers the seat cushion pad 20.

[0021] The seat cushion frame 18 is made of, for example, metal. The seat cushion pad 20 is made of, for example, a foam such as urethane foam, and is placed over the seat cushion frame 18. The seat cushion cover 48 is formed into a bag shape by sewing together a plurality of cover pieces made of, for example, a cloth material, leather, synthetic leather, or the like, and is placed over the seat cushion pad 20 from above.

[0022] 2, the center of the seat cushion 12 in the left-right direction is a main part 12A that supports the buttocks and thighs of the occupant from below, and both left-right sides of the seat cushion 12 are a pair of left and right side parts 12B that support the buttocks and thighs of the occupant from the sides. In this seat cushion 12, the front part of the main part 12A is a slide part 12A2, and the part other than the slide part 12A2 is a cushion main body 12A1.

[0023] The seat cushion pad 20 is divided into a pad main body 22 constituting the pad material of the cushion main body 12A1, and a slide pad (extension pad) 24 constituting the pad material of the slide portion 12A2. The pad main body 22 constitutes a part of the seat cushion pad 20, and the slide pad 24 constitutes the other part of the seat cushion pad 20. An upper surface 22A of the pad main body 22 and an upper surface 24A of the slide pad 24 constitute a seating surface 20A that supports the buttocks and thighs of an occupant.

[0024] The slide pad 24 is disposed on the front side with respect to the pad main body 22, and is supported from below by a cushion length varying mechanism 26 (see Figs. 6 and 7). This cushion length varying mechanism 26 is configured to move the slide pad 24 toward and away from the pad main body 22 by sliding it in the front-rear direction using a driving force such as a motor.

[0025] A cloth-like insert sheet 32 ​​is attached to the underside 20B of the pad body 22 opposite to the seating surface 20A. The insert sheet 32 ​​is, for example, formed by integral foam molding with the pad body 22. A seal member 34 is disposed on the underside of the pad body 22. The seal member 34 is formed in a rectangular plate shape from a nonmetallic material such as nonwoven fabric or press felt. A blower 36 is disposed below the rear part of the seal member 34, and a through hole 35 formed in the rear part of the seal member 34 communicates with an air intake of the blower 36.

[0026] 3 and 5, a plurality of (four in this example) recesses 40 are formed in the lower surface 20B of the pad body 22 along the front-rear direction, recessed toward the upper surface 22A of the pad body 22. The four recesses 40 are formed in the lower surface of the portion of the pad body 22 that constitutes the main portion 12A, and are arranged side by side in the left-right direction. The four recesses 40 extend from the rear of the pad body 22 to the front side of the pad body 22.

[0027] The rear ends of the four recesses 40 join together above the through-hole 35 of the seal member 34. The front ends of the four recesses 40 reach the lower part of the surface 22B of the pad body 22 facing the slide pad 24. The insert sheet 32 ​​attached to the lower surface 20B of the pad body 22 is molded along the shape of the four recesses 40, and the four recesses 40 are reinforced by the insert sheet 32. The seal member 34 arranged on the lower side of the pad body 22 contacts the lower surface of the pad body 22 via the insert sheet 32, and the four recesses 40 are closed by the seal member 34. As a result, four flow paths 42 having a closed cross-sectional structure are formed in the lower part of the pad body 22.

[0028] A plurality of through holes 44 are formed in the pad body 22 at a portion constituting the main portion 12A, penetrating the pad body 22 in the up-down direction. The upper ends of the plurality of through holes 44 open at the upper surface (seating surface 20A) of the pad body 22, and the lower ends of the plurality of through holes 44 communicate with any of the four flow paths 42. The front ends of the four flow paths 42 are formed as vent holes 42A that reach the lower portion of the surface 22B of the pad body 22 facing the slide pad 24.

[0029] As shown in Figures 1 to 3, 6 and 7, the seat cushion cover 46 has a cover main body portion 48 covering the pad main body 22, a slide cover portion 48 covering the slide pad 24, a movable cover portion 52 arranged between the slide pad 24 and the pad main body 22, an extending cover portion 54 extending from the front end of the cover main body portion 48 below the slide pad 24, and a closed cover portion 56 extending from the front end of the cover main body portion 48 below the pad main body 22.

[0030] The skin body 48, the sliding skin part 50, the movable skin part 52 and the extending skin part 54 are constructed by sewing a plurality of skin pieces. As an example, the closed skin part 56 is constructed by a single skin piece. The plurality of skin pieces constituting the skin body 48 are mainly constructed of a breathable cloth material, or leather or synthetic leather with a large number of ventilation holes formed therein. This makes the skin body 48 breathable. The skin body 48 may be constructed by laminating a thin breathable urethane foam on the back surface of each of the skin pieces.

[0031] 6 and 7, the front end of the skin body 48 is located near the lower end of the surface 22B of the pad body 22 that faces the slide pad 24. The rear end of the slide skin 50 is located near the lower end of the surface 24B of the slide pad 24 that faces the pad body 22. The rear end of the movable skin 52, the rear end of the extended skin 54, and the front end (one end) of the closed skin 56 are sewn to the front end of the skin body 48. In other words, the front end of the closed skin 56 is sewn to a sewn portion 58 of the front end of the skin body 48, the rear end of the movable skin 52, and the rear end of the extended skin 54.

[0032] The front end of the movable skin part 52 is fitted and locked in the groove part 28 formed in the rear end of the cushion length varying mechanism 26. This movable skin part 52 is deformed in accordance with the sliding of the slide pad 24, i.e., the slide part 12A2. When the slide part 12A2 is separated from the cushion main body 12A1, the movable skin part 52 is configured to close the gap between the cushion main body 12A1 and the slide part 12A2 from below.

[0033] The intermediate portion in the front-rear direction of the extending skin portion 54 is secured to the pan frame portion 19 constituting the front portion of the seat cushion frame 18 by using a clip 60. The closing skin portion 56 extends below the seal member 34 and is sandwiched between the front end of the seal member 34 and the rear end of the pan frame portion 19. As shown in Fig. 8, the rear end (other end) of the closing skin portion 56 is secured to a wire 62 embedded in the front end of the pad main body 22 by using a plurality of hog rings (fastening devices) 64. A plurality of through holes 57 are formed in the rear end of the closing skin portion 56, and each of the hog rings 64 inserted into each of the through holes 57 is wound around the wire 62.

[0034] The closing skin portion 56 closes a gap 66 between the front end of the seal member 34 (the end on the slide pad 24 side) and the front end of the skin main body 48. This gap 66 is likely to occur when the front end of the skin main body 48 is pulled forward by the movable skin portion 52, particularly when the slide portion 12A2 is separated from the cushion body 12A1. Even in the above state, the closing skin portion 56 is configured to close the gap 66.

[0035] As shown in FIG. 6, when the slide pad 24, i.e., the slide portion 12A2, is close to the pad main body 22, i.e., the cushion main body 12A1, the space on the occupant side (the seating surface 20A side) communicates with the four flow paths 42 through the gap 68 between the slide pad 24 and the pad main body 22, the breathable skin main body 48, and the multiple through holes 44. The blower 36 disposed below the seal member 34 is, for example, an intake fan, and when activated, sucks in air in the four flow paths 42 and blows it toward the lower side of the seat cushion 12. This creates a negative pressure in the four flow paths 42. As a result, the air on the occupant side flows into the four flow paths 42 through the ventilation holes 42A and the multiple through holes 44 of the four flow paths 42. The air that has flowed in flows through the four flow paths 42, and is then exhausted by the blower 36 to the lower side of the seat cushion 12.

[0036] As shown in Fig. 7, even when the slide pad 24, i.e., the slide portion 12A2, is separated from the pad main body 22, i.e., the cushion main body 12A1, and the gap 68 between the slide pad 24 and the pad main body 22 is enlarged, the space on the occupant side communicates with the four flow paths 42 via the gap 68, the skin main body 48, and the multiple through holes 44. When the blower 36 is operated in this state, the air on the occupant side flows into the four flow paths 42 through the ventilation holes 42A of the four flow paths 42 and the multiple through holes 44, and is exhausted to the lower side of the seat cushion 12. In Figs. 6 and 7, arrows AF indicate the flow of air.

[0037] In addition, when the blower 36 is configured to blow air into the four flow paths 42, the air below the seat cushion 12 flows into the four flow paths 42 and is exhausted to the occupant side through the four flow paths 42, the multiple through holes 44, and the skin main body portion 48.

[0038] Next, the operation and effects of this embodiment will be described. In the vehicle seat 10 configured as described above, the buttocks and thighs of an occupant seated on the seat cushion 12 are supported by the seating surface 20A of the seat cushion pad. The slide pad 24 of the seat cushion pad 20 is moved toward and away from the pad main body 22 by sliding in the front-rear direction along the seating surface 20A. This allows the front-rear length of the seat cushion 12 to be adjusted according to the physique of the occupant, etc. The pad main body 22 and the slide pad 24 are covered by a seat cushion skin 46. The seat cushion skin 46 has a skin main body part 48 that covers the pad main body 22 and has air permeability, and a movable skin part 52 located between the pad main body 22 and the slide pad 24 is deformed by the above-mentioned sliding.

[0039] A seal member 34 is provided on the opposite side of the pad body 22 from the seating surface 20A. The seal member 34 forms four flow paths 42 between the pad body 22 and the seal member 34, which reach the surface 22B of the pad body 22 facing the slide pad 24. The air in these flow paths 42 is circulated by the blower 36 and exhausted to the lower side of the seat cushion 12. Since the four flow paths 42 are connected to a plurality of through holes 44 opening in the upper surface 22A of the pad body 22, air on the occupant side is sucked into the four flow paths 42. This allows the occupant to feel the air flow at the places of the buttocks and thighs supported by the pad body 22, improving the comfort of the occupant.

[0040] The gap 68 between the pad main body 22 and the slide pad 24 communicates with the four flow paths 42 on the occupant side via the skin main body portion 48. Therefore, by operating the blower 36, air on the occupant side flows into the four flow paths 42 through the front ends of the four flow paths 42 and the multiple through holes 44, and is exhausted to the lower side of the seat cushion 12. As a result, the occupant can feel the air flow even on the slide pad 24 side.

[0041] Moreover, the seat cushion cover 46 has a closing cover portion 56 that closes a gap 66 between the end of the seal member 34 on the slide pad 24 side and the cover body portion 48. This makes it possible to prevent unnecessary air flow through the gap 66. That is, as in the comparative example shown in Figs. 9 and 10, if the seat cushion cover 46 does not have the closing cover portion 56, secondary air is sucked into the four flow paths 42 through the gap 66 (see arrows SA in Figs. 9 and 10). As a result, the flow rate of air flowing from the occupant side into the four flow paths is reduced, which reduces the comfort of the occupant, but this can be avoided in this embodiment.

[0042] In the seat cushion cover 46, the front end of the closed cover part 56 is sewn together with the sewn part 58 between the cover body part 48 and the movable cover part 52, so that the number of sewing steps can be reduced. Furthermore, the rear end of the closed cover part 56 is secured to the wire 62 embedded in the pad body 22 by using a plurality of hog rings 64, so that the rear end of the closed cover part 56 can be secured firmly to the pad body 22.

[0043] In the above embodiment, the rear end of the occluding skin portion 56 is secured to the wire 62 by using a plurality of hog rings 64, but the present invention is not limited to this. For example, a configuration as shown in a modified example in Fig. 11 may be used. In this modified example, the rear end of the occluding skin portion 56 is secured to the front end of the seal member 34 by using a hook-and-loop fastener 70. In this modified example, the task of securing the rear end of the occluding skin portion 56 to the seal member 34 can be facilitated.

[0044] In addition, in the above embodiment, the occluded skin portion 56 is configured to be sewn to the skin main body portion 48, the movable skin portion 52, and the extending skin portion 54, but this is not limited thereto, and the occluded skin portion 56 may be configured to be formed integrally with any of the skin main body portion 48, the movable skin portion 52, and the extending skin portion 54.

[0045] In the above embodiment, the seat cushion pad 20 is the pad of the present invention, but the pad of the seat back 14 may be the pad of the present invention.

[0046] In addition, the present invention can be implemented in various modifications without departing from the spirit and scope of the present invention. Furthermore, the scope of the present invention is not limited to the above-described embodiment. [Explanation of symbols]

[0047] 10 Vehicle seats 12 Seat cushion 20 Seat cushion pad (pad) 20A Seat surface 22 Pad body 22B Surface of pad body facing slide pad 24 Slide Pad 28 Epidermis main body 30 Slide surface part 36 Blower 42 Flow Path

Claims

1. A pad main body that constitutes a part of a pad that supports an occupant on a seating surface; a slide pad that constitutes another portion of the pad and is adapted to be brought into contact with and separated from the pad body by sliding along the seating surface; a seal member provided on the opposite side of the pad body from the seating surface, the seal member forming a flow path between the pad body and a surface of the pad body facing the slide pad; A blower for moving air through the flow path; a skin covering the pad body and the slide pad, the skin body having a breathable surface and a movable skin portion located between the pad body and the slide pad, the movable skin portion being deformed by the sliding; Equipped with The cover has a closing cover portion that closes a gap between the cover body portion and an end portion of the seal member on the slide pad side.

2. 2. The vehicle seat according to claim 1, wherein one end of the closed cover portion is sewn together with a seam between the cover body portion and the movable cover portion.

3. 3. The vehicle seat according to claim 1, wherein the other end of the closed cover portion is fastened to a wire embedded in the pad body by a fastener.

4. 3. The vehicle seat according to claim 1, wherein the other end of the closed cover portion is fastened to the sealing member by a hook-and-loop fastener.

5. 3. The vehicle seat according to claim 1, wherein the pad is a seat cushion pad provided on a seat cushion that supports the buttocks and thighs of a seated occupant, and the slide pad is disposed on the front side of the seat relative to the pad main body and slides in the fore-and-aft direction of the seat relative to the pad main body.

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