Vehicle seats

Abstract

To provide a seat for a vehicle which can enhance assembly rigidity of components of a blower.SOLUTION: A seat S for a vehicle includes a pad material 20, and a duct 53 which is provided inside the seat and passes air blown from a blower 52 therethrough. The pad material 20 has a duct insertion hole 21c which is formed so as to penetrate in its thickness direction and inserts the duct thereinto, and a ventilation passage 21d which is formed on a surface of the pad material and guides air blown from a blow-out part 54 of the duct 53. The duct 53 is mounted in a state where its whole periphery is surrounded by the pad material 20 by being inserted into the duct insertion hole 21c. The blow-out part 54 is exposed to the surface of the pad material 20 through the duct insertion hole 21c, is bent in a direction perpendicular to the insertion direction of the duct insertion hole 21c, and extends toward the ventilation passage 21d. A blow-out port 54a of the blow-out part 54 is arranged inside the ventilation passage 21d.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a vehicle seat, and particularly to a vehicle seat provided with a padding material.

Background Art

[0002] Conventionally, a vehicle seat provided with a blower device that is provided inside a seat body and blows air, and a duct that is connected to the blower and allows the air blown out from the blower to pass through, is known (for example, see Patent Document 1).

[0003] In the vehicle seat described in Patent Document 1, a blower device is provided that has a blower attached inside a seat cushion and a duct that is connected to the blower and extends from the seat cushion toward the seat back. The padding material of the seat back is formed by cutting out the lower end portion of the padding material, and has a duct through groove that passes the duct and a ventilation path that is formed on the surface of the padding material and guides the air blown out from the blowing portion of the duct. The blowing portion of the duct is exposed to the surface side of the padding material through the duct through groove and is disposed at a position corresponding to the ventilation path.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, in a vehicle seat such as Patent Document 1, the blowing portion of the duct is assembled to the padding material by inserting the blowing portion of the duct into a duct through groove formed by cutting out a part of the padding material. In this context, there was a need to improve the assembly structure of the duct (the outlet part of the duct) to the pad material, thereby increasing the assembly rigidity of the duct. Furthermore, it was required to increase the assembly rigidity of the duct while positioning it so that the duct outlet would not affect the seating comfort of the occupant.

[0006] The present invention has been made in view of the above problems, and the object of the present invention is to provide a vehicle seat equipped with a blower that can increase the assembly rigidity of the components of the blower compared to conventional vehicles. Another object of the present invention is to provide a vehicle seat that is designed so that the components of the air blower do not affect the seating comfort of the occupant. [Means for solving the problem]

[0007] The aforementioned problem is solved by the vehicle seat of the present invention, which is a vehicle seat equipped with a pad material, and is provided inside the vehicle seat and includes a duct through which air blown from a blower passes. The duct has an extension portion extending from the blower and a discharge portion connected to the extension portion. The pad material has a duct insertion hole formed through it in the thickness direction of the pad material, through which the duct is inserted, and the pad material On the seated side Formed on the surface, the duct The aforementioned Guides the air blown out from the outlet. concave shape The duct has a ventilation passage, and the duct is attached to the pad material by inserting a part of the duct through the duct insertion hole, so that it is completely enclosed around the pad material, and the blowing part is A connecting portion connected to the extension portion, The pad material through the duct insertion hole Seating Exposed on the surface side The exposed portion and the connection portion and the exposed portion The insertion direction of the duct insertion hole and directly Bend in the direction of crossing. It has a bent portion and the exposed portion of the blowing portion, It extends toward the aforementioned ventilation passage, and the blowing part The tip of the exposed portion is provided This problem is solved by positioning the air outlet in the aforementioned ventilation passage. The above configuration makes it possible to realize a vehicle seat that can increase the assembly rigidity of the blower components compared to conventional designs. More specifically, the duct is attached by inserting a portion of it through a duct insertion hole, so that it is completely enclosed within the pad material. Therefore, compared to conventional methods, the assembly rigidity of the duct (the duct outlet) relative to the pad material can be increased. Also, the blower part is, A connecting part connected to the extension, Through the duct insertion hole, the pad material Seating Exposed on the surface side Between the exposed part and the connecting part and the exposed part Direction of insertion of duct insertion hole and directly Bend in the direction of crossing. It has a bent portion and an exposed portion It extends toward the ventilation duct, and the outlet Provided at the tip of the exposed part The air outlet is positioned in the ventilation passage. Therefore, compared to conventional designs, the assembly rigidity of the duct (the air outlet portion of the duct) relative to the pad material can be increased. Specifically, it is possible to prevent the air outlet portion of the duct from coming out in the direction of insertion through the duct insertion hole. Furthermore, the air vents are curved so as not to protrude from the surface of the pad material. Therefore, the structure is designed so that the air vents do not affect the seater's comfort.

[0008] In this case, the seat comprises a seat body having a seat back, and a blower provided inside the seat body, having a blower and a duct connected to the blower, wherein the duct is attached so as to be completely surrounded by the pad material provided inside the seat back, and the blowing part The aforementioned bent portion It bends inward in the width direction of the seat. do It would be good to have one. The above configuration makes it possible to further increase the assembly rigidity of the duct outlet portion relative to the seat back pad material.

[0009] At this time, the blowing part The aforementioned bent portion It is preferable that it has a bellows shape and is formed to expand and contract in the direction of extension of the blowing portion. With the above configuration, even when a seating load is applied to the pad material and the blowing portion, the blowing portion can be preferably deformed in a bellows shape, suppressing discomfort of the seated person caused by the blowing portion. Also, it is possible to prevent the blowing portion from being unintentionally deformed or bent.

[0010] At this time, the blowing portion The aforementioned bent portion is curved or inclined in a direction intersecting with the insertion direction of the duct insertion hole and directly and hand bent do is That would be good . With the above configuration, compared with the case where the blowing portion is bent at a substantially right angle, the air flow inside the blowing portion can be improved.

[0011] At this time, the blowing outlet of the blowing portion The aforementioned is disposed inside the ventilation passage, and a raised portion protruding toward the blowing outlet is formed in a portion of the bottom surface of the ventilation passage where the blowing outlet Corresponds to the position where it is placed is located, and it is preferable that the blowing outlet is supported by the raised portion. With the above configuration, it is possible to prevent a gap from being formed between the blowing outlet and the ventilation passage, suppressing air leakage. Also, the blowing portion (blowing outlet) of the duct can be assembled to the pad material more stably.

[0012] At this time, In the width direction of the aforementioned air outlet the blowing portion Both sides of the exposed portion are front is sandwiched by the pad material and supported in a state of being in contact with the pad material, and it is preferable that the blowing outlet of the blowing portion is disposed inside the ventilation passage so as not to be blocked by the pad material. With the above configuration, the blowing portion of the duct can be assembled to the pad material more stably. Also, air can be blown out from the blowing portion (blowing outlet) well.

[0013] At this time, before in the insertion direction of the duct insertion hole, the SeatingWhen viewed from the side, the blowing part Front view The area of ​​the duct insertion hole Front view It's better if it's larger than the area. The above configuration makes it possible to further increase the assembly rigidity of the duct outlet portion relative to the pad material.

[0014] At this time, the pad material is On the seated side The surface is formed and has left and right surface suspension grooves for suspending the surface material, the duct insertion hole is positioned inward from the left and right surface suspension grooves in the sheet width direction and is not connected to the left and right surface suspension grooves, and the blowing portion is positioned inward from the left and right surface suspension grooves and is bent inward in the sheet width direction. With the above configuration, the assembly rigidity of the duct outlet portion relative to the pad material can be increased without being affected by the left and right surface suspension grooves.

[0015] At this time, the blowing part is the pad material On the seated side The pad material should not protrude from the surface. On the seated side It is preferable that it is housed in the duct insertion hole and the ventilation passage formed in the surface. Furthermore, the pad material comprises a first pad material and the first pad material Seating The blowing portion comprises a second pad material provided on the surface side and arranged to overlap with the first pad material, and the blowing portion is the first pad material On the seated side It is preferable that the pad material is provided so as to fit into the duct insertion hole and the ventilation passage formed in the surface, and is positioned between the first pad material and the second pad material in the thickness direction of the pad material. The above configuration makes it possible to create a vehicle seat that is designed so that the duct outlet does not affect the seating comfort of the occupant. [Effects of the Invention]

[0016] According to the present invention, it is possible to realize a vehicle seat that can increase the assembly rigidity of the components of the blower compared to conventional designs. More specifically, the assembly rigidity of the duct (the outlet portion of the duct) relative to the pad material can be further increased. Furthermore, according to the present invention, the structure is designed so that the air outlet does not affect the seating comfort of the person sitting. Furthermore, according to the present invention, even when a seating load is applied to the pad material and the air outlet, the air outlet deforms appropriately due to its bellows shape, thereby suppressing discomfort to the seated person caused by the air outlet. Furthermore, according to the present invention, it is possible to improve the airflow inside the outlet. Furthermore, according to the present invention, it is possible to suppress the formation of a gap between the air outlet and the ventilation passage, thereby suppressing air leakage. Furthermore, according to the present invention, air can be effectively blown out from the outlet (discharge port). Furthermore, according to the present invention, the assembly rigidity of the duct outlet portion relative to the pad material can be increased without being affected by the left and right surface suspension grooves. [Brief explanation of the drawing]

[0017] [Figure 1] This is a perspective view of the vehicle seat according to this embodiment. [Figure 2] This is a perspective view of the padding material for a vehicle seat. [Figure 3] This is an exploded perspective view of the pad material (first pad material, second pad material), showing the state in which the blower (blower, duct) is assembled inside the sheet body. [Figure 4] This is a front view of the first pad material of the seat back, showing the state in which the duct is assembled to the first pad material. [Figure 5] This is a bottom view of a vehicle seat, showing the seat body with a ventilation device installed inside. [Figure 6] This is a plan view of the blower. [Figure 7A]This is a perspective view of a blower system, with enlarged views of the main components showing the blower, mounting bracket, and duct. [Figure 7B] This is a perspective view of a blower, and is an enlarged view of the main parts showing the duct and outlet. [Figure 8] This is a plan view of the duct and outlet. [Figure 9A] This is an enlarged view of the main part of the first pad material of the seat back, showing the state in which the blower section is assembled to the first pad material. [Figure 9B] This diagram shows the state before the blowing section is assembled to the first pad material. [Modes for carrying out the invention]

[0018] Hereinafter, embodiments of the present invention will be described with reference to Figures 1 to 9B. This embodiment relates to a vehicle seat equipped with a pad material, which is equipped with a duct for passing air blown from a blower, and is characterized by the fact that the assembly rigidity of the duct (the outlet portion of the duct) to the pad material can be increased, and care has been taken to ensure that the outlet portion of the duct does not affect the seating comfort of the occupant. In vehicle seats, the side where the occupant sits is considered the front of the seat relative to the seatback.

[0019] <Overall configuration of a vehicle seat> As shown in Figures 1 to 3, the vehicle seat S of this embodiment is a vehicle seat comprising a seat body having a seat back 1 and a seat cushion 2, and a blower 50 installed inside the seat body that blows air toward the occupant. Furthermore, the vehicle seat S includes a rail device 70 that supports the seat body so that it can move back and forth relative to the vehicle floor, a height link device 80 that connects the seat body to the vehicle floor (rail device 70) so that it can be raised and lowered, and a reclining device 90 that connects the seat back 1 to the seat cushion 2 so that it can be rotated. In addition, the vehicle seat S may further include a control device (not shown) for controlling the blower 50, rail device 70, height link device 80, and reclining device 90.

[0020] As shown in Figures 1 and 4, the seat back 1 is a backrest that supports the occupant from behind, and is constructed by placing a pad material 20 on a back frame 10 which forms the skeleton, and covering it with a surface material 1a. As shown in Figures 3 and 4, components of the blower 50 (duct 53) are arranged inside the seat back 1. As shown in Figure 1, the seat cushion 2 is a seating portion that supports the occupant from below, and is constructed by placing a pad material 40 on a cushion frame 30 which forms the skeleton, and covering it with a surface material 2a. As shown in Figure 3, the components of the blower 50 (blower 52, duct 53) are arranged inside the seat cushion 2.

[0021] As shown in Figures 2 to 4, the pad material 20 is a pad laminate formed by stacking multiple pad materials in the front-rear direction of the seat, and comprises a first pad material 21 positioned on the rear side (frame side) and a second pad material 22 which is softer than the first pad material 21 and positioned on the front side (seater side). The second pad material 22, also called a cover material, is attached to the surface of the central part of the first pad material 21 in the sheet width direction, and covers the central part of the first pad material 21 from the front.

[0022] As shown in Figures 3 and 4, the first pad material 21 is formed from a resin material such as foamed polypropylene. The surface of the first pad material 21 has left and right first surface suspension grooves 21a for suspending the surface material 1a, a second surface suspension groove 21b connecting the upper portions of the left and right first surface suspension grooves 21a, a duct insertion hole 21c for inserting the duct 53 of the blower 50, and a concave-shaped ventilation passage 21d for guiding the air blown out from the duct 53 (outlet section 54).

[0023] The first surface lifting grooves 21a are formed on the left and right sides with a gap in the sheet width direction and extend in the vertical direction. The second surface lifting grooves 21b extend in the sheet width direction and connect the left and right first surface lifting grooves 21a. The duct insertion hole 21c is a hole with a substantially rectangular cross-section, formed to penetrate through the first pad material 21 in the thickness direction. The duct insertion hole 21c is formed within the area enclosed by the surface suspension grooves 21a and 21b, and is located on the seat cushion 2 side (lower part) in the vertical direction, and on the blower 50 (blower 52) side (right side) in the seat width direction. As shown in Figure 4, the duct insertion hole 21c is located inside the left and right first skin suspension grooves 21a and is not connected to the left and right first skin suspension grooves 21a. On the other hand, the duct insertion hole 21c is connected to the ventilation passage 21d.

[0024] As shown in Figures 3 and 4, the ventilation passage 21d is formed continuously from the duct insertion hole 21c and extends while branching upward, downward, and to the sides. The ventilation passage 21d guides air through almost the entire central part of the seat back 1, and can then blow air towards the seated person. The ventilation passage 21d is formed to be symmetrical with respect to the center line (centerline) of the seat back 1 in the seat width direction. The left and right ends of the ventilation passage 21d are connected to the first skin suspension groove 21a, and the upper end of the ventilation passage 21d is connected to the second skin suspension groove 21b.

[0025] As shown in Figures 2 and 3, the second pad material 22 is formed from a resin material such as urethane foam, and is softer than the first pad material 21. The second pad material 22 is positioned so as not to face the surface suspension grooves 21a and 21b. In other words, it is positioned in the area enclosed by the surface suspension grooves 21a and 21b. On the surface of the second pad material 22, multiple ventilation holes 22a are formed at positions corresponding to (opposite to) the ventilation passage 21d, spaced apart in the sheet width direction and vertical direction. The ventilation holes 22a are roughly rectangular through-holes, arranged symmetrically with respect to the center line of the seat back 1 in the seat width direction. The ventilation hole 22a is positioned so as not to face the duct insertion hole 21c.

[0026] With the above configuration, the air blown out from the outlet 54 of the duct 53 passes through the ventilation passage 21d and the ventilation hole 22a and is blown out smoothly towards the seated person. Furthermore, the ventilation passage 21d and the skin suspension grooves 21a and 21b are partially connected. As a result, air is effectively blown out by passing through the ventilation passage 21d and the skin suspension grooves 21a and 21b. Furthermore, only ventilation holes 22a are formed on the surface of the second pad material 22 at a position facing the ventilation passage 21d. Therefore, it is possible to prevent air from unintentionally leaking out through places other than the ventilation holes 22a.

[0027] The same applies to the pad material 40 of seat cushion 2. In other words, as shown in Figure 3, the pad material 40 is a pad laminate comprising a first pad material 41 and a second pad material 42 disposed on the upper surface of the first pad material 41 and formed to be softer than the first pad material 41. The surface of the first pad material 41 has left and right first skin suspension grooves 41a, a duct insertion hole 41b, and a ventilation passage 41c formed thereon. Furthermore, the surface of the second pad material 42 has a second skin suspension groove 42a that connects the left and right first skin suspension grooves 41a, and a plurality of ventilation holes 42b.

[0028] <Air blower> As shown in Figures 3 to 8, the blower 50 is attached to the bottom surface of the cushion frame 30 via a mounting bracket 51 and includes a blower 52 that blows out air, a duct 53 connected to the blower 52 for passing air through, and outlets 54 and 55 connected to the duct 53 that blow air toward the seated person.

[0029] As shown in Figures 6 and 7A, the mounting bracket 51 has a housing recess 51a (housing section) capable of accommodating the blower 52, and is assembled to the bottom surface of the cushion frame 30 with the blower 52 housed inside. More specifically, the mounting bracket 51 has multiple frame mounting sections 51b for attaching it to the cushion frame 30. The frame assembly section 51b is positioned to surround the blower 52 and is assembled to the cushion frame 30 by fastening bolts from below the mounting bracket 51. The mounting bracket 51 and the blower 52 are positioned on the bottom surface of the lateral portion (right side portion) of the cushion frame 30.

[0030] The blower 52 is configured to blow air from outlets 54 and 55 through a duct 53. More specifically, the blower 52 is connected to the base end of the duct 53 via a duct connection hole 51c formed at the rear end of the mounting bracket 51.

[0031] As shown in Figures 6 to 8, the duct 53 is a vent pipe through which air blown out from the blower 52 passes, and is formed from a polyethylene material such as low-density polyethylene or flexible polyethylene. The duct 53 extends from the blower 52 toward the rear of the seat, bends around the rear end of the seat cushion 2, and extends further upward. It then passes through the pad material 20 (duct insertion hole 21c) of the seat back 1 and is exposed on the surface of the pad material 20. That is, the blowing portion 54 at the tip of the duct 53 is exposed on the surface of the pad material 20.

[0032] More specifically, the duct 53 includes a first extension 53a that extends slightly meanderingly from the blower 52 towards the rear of the seat, a second extension 53b that slopes upward and extends towards the rear of the seat from the extension end of the first extension 53a, a third extension 53c that extends upward from the second extension 53b, a fourth extension 53d that extends forward from the third extension 53c and passes through the pad material 20 (duct insertion hole 21c), and a blowing section 54 connected to the fourth extension 53d. Furthermore, the duct 53 is branched at a predetermined position of the first extension 53a and further includes a second outlet 55 (outlet 55a) that extends upward from the upper end of the first extension 53a and passes through the pad material 40 (duct insertion hole 41b). The air outlet 54 is located on the seat back 1 side, and the second air outlet 55 is located on the seat cushion 2 side.

[0033] The duct 53 is attached to the pad material 20 (first pad material 21) of the seat back 1 by inserting a portion of the duct 53 through the duct insertion hole 21c, so that it is completely enclosed around it. Therefore, the assembly rigidity of the duct 53 (discharge section 54) relative to the pad material 20 can be increased.

[0034] As shown in Figures 8, 9A, and 9B, the discharge section 54 is exposed on the surface side of the pad material 20 through the duct insertion hole 21c, bends in a direction perpendicular to the insertion direction of the duct insertion hole 21c (the front-to-back direction of the sheet) (towards the inside in the sheet width direction), and extends toward the ventilation passage 21d. The discharge port 54a at the tip of the discharge section 54 is positioned in the ventilation passage 21d. More specifically, the outlet section 54 curves and bends in a direction perpendicular to the insertion direction of the duct insertion hole 21c, extending toward the ventilation passage. The outlet 54a is located inside the ventilation passage 21d. The air outlet section 54 may also be bent at an angle.

[0035] As shown in Figure 9A, the blowing section 54 is sandwiched between the pad material 20 (first pad material 21) in its width direction and is supported in contact with the pad material 20. The air outlet 54a is positioned inside the ventilation passage so as not to be obstructed by the pad material 20.

[0036] In the above configuration, as shown in Figures 8 and 9A, the blowing section 54 has a bellows shape and is formed to expand and contract in the direction of extension of the blowing section. By doing so, the air outlet expands and contracts appropriately in response to the seating load, and discomfort to the seated person caused by the air outlet can be suppressed. Furthermore, the bellows-like shape of the outlet section 54 makes it difficult for it to come out of the duct insertion hole 21c. Furthermore, as shown in Figure 8, the second extension portion 53b of the duct 53 also has a bellows shape, which allows the duct 53 and the outlet portion 54 to be suitably extended and retracted.

[0037] In the above configuration, as shown in Figures 9A and 9B, the outlet 54a of the discharge unit 54 is located inside the ventilation passage 21d. On the bottom surface of the ventilation passage 21d, a raised portion 21e is formed in the portion facing the outlet 54a, protruding toward the outlet 54a. The outlet 54a is supported by the raised portion 21e. By doing so, a gap is formed between the outlet 54a and the ventilation passage 21d, which helps to prevent air leakage. In addition, the outlet 54 (outlet 54a) can be assembled to the pad material 20 in a more stable manner.

[0038] In the above configuration, as shown in Figures 3, 9A, and 9B, when viewed from the surface side of the pad material 20 in the insertion direction of the duct insertion hole 21c (front-to-back direction of the sheet) (in a plan view), the area of ​​the blowing portion 54 (area on a plane) is larger than the area of ​​the duct insertion hole 21c (area on a plane). Therefore, the assembly rigidity of the outlet portion 54 of the duct 53 relative to the pad material 20 can be further increased.

[0039] In the above configuration, as shown in Figures 9A and 9B, the blowing section 54 is housed inside the duct insertion hole 21c and the ventilation passage 21d formed on the surface of the pad material 20 (first pad material 21) so as not to protrude from the surface of the pad material 20. Furthermore, as shown in Figure 3, the blowing portion 54 is positioned between the first pad material 21 and the second pad material 22 in the thickness direction of the pad material 20. By doing so, it is possible to realize a vehicle seat S that is designed so as not to affect the seating comfort of the occupant when the air outlet 54 of the duct 53 is blown out.

[0040] <Other embodiments> In the above embodiment, as shown in Figure 1, the vehicle seat S includes a rail device 70, a height link device 80, and a reclining device 90, but is not particularly limited. In other words, the vehicle seat S does not need to be equipped with a rail device 70, a height link device 80, and a reclining device 90.

[0041] In the above embodiment, as shown in Figure 3, the vehicle seat S is equipped with a blower 50, but it is not necessary for it to be equipped with a blower 50 (blower 52). For example, the blower 50 may be attached to the vehicle body, and the vehicle seat S may have only a duct 53 connected to the blower 50 (blower 52) provided on the vehicle body.

[0042] In the above embodiment, as shown in Figure 9A, the outlet portion 54 on the seat back 1 side of the duct 53 is exposed on the surface of the pad material 20 and bent inward in the seat width direction, but this is not particularly limited. For example, as shown in Figure 3, the second air outlet 55 on the seat cushion 2 side may have a similar configuration. Specifically, the second air outlet 55 may be exposed on the surface of the pad material 40 (first pad material 41) and be bent inward in the seat width direction. Alternatively, of the two outlets 54 and 55, only the second outlet 55 may be exposed on the surface of the pad material 40 (first pad material 41) and be bent inward in the sheet width direction.

[0043] In the above embodiment, as shown in Figures 9A and 9B, the outlet portion 54 in the duct 53 is exposed on the surface of the pad material 20 and bent inward in the sheet width direction, but this is not particularly limited. For example, the outlet portion 54 may bend outward in the width direction of the sheet, or it may bend upward, or it may bend downward. In other words, the outlet portion 54 only needs to be bent in a direction perpendicular to the insertion direction of the duct insertion hole 21c.

[0044] In the above embodiment, a vehicle seat used in an automobile was described as a specific example, but it is not particularly limited and can be used for various types of seats, including motorcycle seats, seats in trains and buses, seats in airplanes and ships, as well as office chairs for work, wheelchairs, and children's seats in shopping carts.

[0045] The above embodiments mainly described a vehicle seat according to the present invention. However, the embodiments described above are merely examples to facilitate understanding of the present invention and do not limit it. The present invention can be modified and improved without departing from its spirit, and of course, equivalents thereof are included.

[0046] <Note> The vehicle seat S is a seat equipped with a pad material 20, and is provided with a duct 53 located inside the seat that allows air blown out from a blower 52 to pass through. The pad material 20 has a duct insertion hole 21c formed through the thickness direction of the pad material 20 for inserting the duct 53, and a ventilation passage 21d formed on the surface of the pad material 20 that guides the air blown out from the outlet 54 of the duct 53. The duct 53 is attached to the pad material 20 in a state where it is completely enclosed by inserting a part of the duct 53 through the duct insertion hole 21c. The outlet 54 is exposed on the surface side of the pad material 20 (21) through the duct insertion hole 21c, bends in a direction perpendicular to the insertion direction of the duct insertion hole 21c, and extends toward the ventilation passage 21d. The outlet 54a of the outlet 54 is located in the ventilation passage 21d. This makes it possible to realize a vehicle seat S that has increased assembly rigidity of the duct 53 of the blower 50 compared to conventional designs. In addition, the structure is designed so that the air outlet 54 does not affect the seating comfort of the person sitting in it.

[0047] The vehicle seat S also comprises a seat body having a seat back 1, and a blower 50 provided inside the seat body, which includes a blower 52 and a duct 53 connected to the blower 52. The duct 53 is mounted so as to be completely surrounded by a pad material 20 (21) provided inside the seat back 1. The blowing section 54 is exposed on the surface side of the pad material 20 through a duct insertion hole 21c, bends inward in the width direction of the seat, and extends toward the ventilation passage 21d. By doing so, the assembly rigidity of the outlet portion 54 of the duct 53 relative to the pad material 20 of the seat back 1 can be further increased.

[0048] Furthermore, in the vehicle seat S, the air outlet 54 has a bellows shape and is formed to expand and contract in the direction of extension of the air outlet 54. By doing so, even when a seating load is applied to the pad material 20 and the air outlet 54, the air outlet 54 deforms appropriately due to its bellows shape, suppressing discomfort to the seated person caused by the air outlet 54. In addition, it is possible to prevent the air outlet 54 from unintentionally deforming or bending.

[0049] In addition, in the vehicle seat S, the air outlet 54 is bent and curved or inclined in a direction perpendicular to the insertion direction of the duct insertion hole 21c, and extends toward the ventilation passage 21d. By doing so, the airflow inside the outlet 54 can be improved compared to the case where the outlet 54 is bent at approximately a right angle.

[0050] In addition, in the vehicle seat S, the air outlet 54a of the air outlet section 54 is located inside the ventilation passage 21d. On the bottom surface of the ventilation passage 21d, a raised portion 21e is formed in the part facing the air outlet 54a, protruding toward the air outlet 54a. The air outlet 54a is supported by the raised portion 21e. This prevents the formation of a gap between the outlet 54a and the ventilation passage 21d, thereby suppressing air leakage. In addition, the outlet 54 (outlet 54a) can be assembled to the pad material 20 (21) in a more stable manner.

[0051] In addition, in the vehicle seat S, the air outlet 54 is sandwiched between pad materials 20(21) in the width direction of the air outlet 54 and is supported in contact with the pad materials 20(21). The air outlet 54a of the air outlet 54 is positioned inside the ventilation passage 21d so as not to be obstructed by the pad material 20. By doing so, the outlet portion 54 of the duct 53 can be assembled to the pad material 20 in a more stable manner. In addition, air can be blown out smoothly from the outlet portion 54 (outlet 54a).

[0052] Furthermore, in the vehicle seat S, when viewed from the surface side of the pad material 20 in the insertion direction of the duct insertion hole 21c, the area of ​​the blowing portion 54 is larger than the area of ​​the duct insertion hole 21c. By doing so, the assembly rigidity of the outlet portion 54 of the duct 53 relative to the pad material 20 can be further increased.

[0053] In addition, in the vehicle seat S, the pad material 20 has left and right surface suspension grooves 21a formed on its surface for suspending the surface material 1a. The duct insertion hole 21c is located inside the left and right surface suspension grooves 21a in the seat width direction and is not connected to the left and right surface suspension grooves 21a. The blowing section 54 is located inside the left and right surface suspension grooves 21a and is bent inward in the seat width direction. By doing so, the assembly rigidity of the outlet portion 54 of the duct 53 relative to the pad material 20 can be increased without being affected by the left and right surface suspension grooves 21a.

[0054] In addition, in the vehicle seat S, the air outlet 54 is housed in a duct insertion hole 21c and a ventilation passage 21d formed on the surface of the pad material 20 (21) so as not to protrude from the surface of the pad material 20 (21). By doing so, it is possible to realize a vehicle seat S that is designed so as not to affect the comfort of the occupant when the air outlet 54 of the duct 53 is blown out.

[0055] In addition, in the vehicle seat S, the pad material 20 has a first pad material 21 and a second pad material 22 provided on the surface side of the first pad material 21 and arranged to overlap with the first pad material 21. The blowing section 54 is provided to fit into the duct insertion hole 21c and the ventilation passage 21d formed on the surface of the first pad material 21, and is arranged sandwiched between the first pad material 21 and the second pad material 22 in the thickness direction of the pad material 20. By doing so, it is possible to realize a vehicle seat S that is designed so as not to affect the comfort of the occupant when the air outlet 54 of the duct 53 is blown out. [Explanation of Symbols]

[0056] S Vehicle Seat 1 seat back 1a Skin material 2 seat cushions 2a Skin material 10 Backframe 20 pad material 21. First pad material 21a First epidermal suspension groove 21b Second epidermal suspension groove 21c Duct insertion hole 21d Ventilation channel 21e Excitement Club 22. Second pad material 22a Ventilation holes 30 Cushion Frames 40 pad material 41. First pad material 41a First skin suspension groove 41b Duct insertion hole 41c ventilation channel 42. Second pad material 42a Second skin suspension groove 42b Ventilation holes 50 Blower 51 Mounting bracket 51a Receiving recess 51b Frame assembly section 51c Duct connection hole 52 Blower 53 Duct 53a 1st extension part 53b 2nd extension 53c 3rd extension 53d 4th extension 54. Air vent (seat back side) 54a Air outlet 55. Second air vent (seat cushion side) 55a Air outlet 70 Rail device 80 Height Link Device 90 Reclining device

Claims

1. A vehicle seat equipped with padding, The vehicle seat is provided with a duct through which air blown from a blower passes, The duct has an extension portion extending from the blower and a discharge portion connected to the extension portion. The aforementioned pad material is A duct insertion hole is formed that penetrates through the pad material in the thickness direction and through which the duct is inserted, The pad material has a concave ventilation passage formed on the seat-side surface that guides the air blown out from the outlet of the duct, The duct is attached to the pad material by inserting a portion of the duct through the duct insertion hole, so that it is completely enclosed within the pad material. The blowing portion has a connecting portion connected to the extension portion, an exposed portion exposed to the seating surface side of the pad material through the duct insertion hole, and a bent portion between the connecting portion and the exposed portion that bends in a direction perpendicular to the insertion direction of the duct insertion hole. The exposed portion of the outlet extends toward the ventilation passage. A vehicle seat characterized in that the air outlet provided at the tip of the exposed portion of the air outlet is positioned in the ventilation passage.

2. A seat body having a seat back, The air blower is provided inside the seat body and comprises the blower and the duct connected to the blower, The duct is installed so as to be completely enclosed within the pad material provided inside the seat back. The seat for a vehicle according to claim 1, characterized in that the bent portion of the blowing outlet is bent inward in the width direction of the seat.

3. The seat for a vehicle according to claim 1 or 2, characterized in that the bent portion of the blowing outlet has a bellows shape and is formed to expand and contract in the direction of extension of the blowing outlet.

4. The seat for a vehicle according to claim 1 or 2, characterized in that the bent portion of the blowing portion is curved or inclined and bent in a direction perpendicular to the insertion direction of the duct insertion hole.

5. The outlet of the aforementioned outlet section is located inside the ventilation passage. Of the bottom surface of the ventilation passage, a raised portion is formed in the part corresponding to the position where the air outlet is located, which protrudes toward the air outlet. The vehicle seat according to claim 1, characterized in that the air outlet is supported by the raised portion.

6. Both sides of the exposed portion of the air outlet in the width direction of the air outlet are sandwiched by the pad material and supported in contact with the pad material, The vehicle seat according to claim 1, characterized in that the outlet of the air outlet is located inside the ventilation passage so as not to be obstructed by the pad material.

7. The vehicle seat according to claim 1, characterized in that, when viewed from the seating surface side of the pad material in the insertion direction of the duct insertion hole, the front view area of ​​the air outlet is larger than the front view area of ​​the duct insertion hole.

8. The aforementioned pad material has left and right surface suspension grooves formed on the seat-side surface of the pad material for suspending the surface material, The duct insertion hole is positioned inward from the left and right surface suspension grooves in the sheet width direction, and is not connected to the left and right surface suspension grooves. The vehicle seat according to claim 1, characterized in that the blowing portion is positioned inside the left and right surface suspension grooves and is bent inward in the seat width direction.

9. The vehicle seat according to claim 1, characterized in that the air outlet portion is housed in the duct insertion hole and the ventilation passage formed on the seat-side surface of the pad material so as not to protrude from the seat-side surface of the pad material.

10. The pad material comprises a first pad material and a second pad material provided on the seating surface side of the first pad material and arranged to overlap with the first pad material. The seat for a vehicle according to claim 1, characterized in that the blowing portion is provided so as to fit into the duct insertion hole and the ventilation passage formed on the seated side surface of the first pad material, and is sandwiched between the first pad material and the second pad material in the thickness direction of the pad material.

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