CN118082646A - Seat for vehicle - Google Patents

Abstract

The invention provides a vehicle seat, which can properly protect a pipeline protruding to a rear seat side and inhibit the enlargement of a cover member arranged at the rear side of a seat cushion pad so as to ensure the foot placing space of a passenger sitting on the rear seat. A vehicle seat (S) is provided with a seat body (Sh) having a seat cushion (2) and a seat back (1), and a duct (53) through which air sent from a blower (52) passes. The seat body has a seat frame (F) as a skeleton of the seat body, and a skin material (2 a) covering the seat frame, and the duct has a rear extension portion (53 c) that extends so as to span the rear portion of the seat cushion and the lower portion of the seat back and extends further rearward than the seat cushion, and a duct protection member (60) is provided on the skin material, and covers the rear extension portion to protect the rear extension portion.

Description

Seat for vehicle

Technical Field

The present invention relates to a vehicle seat, and more particularly, to a vehicle seat including a duct for blowing air.

Background

There is known a vehicle seat including a blower disposed below a seat cushion and a duct connecting ventilation paths formed in the seat cushion and a seat back, and capable of sending out air appropriately temperature-adjusted from the blower toward a seated person. In other words, conventionally, the comfort of the seated person is improved by sending out the temperature-regulated air to the seated person.

Patent document 1 describes a blower provided below a seat cushion, a duct that flexes from the seat cushion toward the back of the seat, and a duct cover for protecting the duct from the feet of an occupant seated in a rear seat.

Fig. 11 shows a duct cover described in patent document 1. As shown in fig. 11, the duct 153 connected to the blower is disposed so as to extend upward through the rear side of the rear connecting frame 134 that connects the rear of the left and right cushion side frames 131, and is connected to a ventilation passage (not shown) formed in the back of the seat. Therefore, on the rear side of the seat cushion, in order to prevent the duct 153 from being damaged by the feet of the occupant seated in the rear seat abutting on the folded portion 153c of the duct 153, the folded portion 153c is covered with a cover member integrally formed with the reclining device cover 191.

[ Prior Art literature ]

[ Patent literature ]

Patent document 1 Japanese patent laid-open publication No. 2018-144517

Disclosure of Invention

[ Problem to be solved by the invention ]

According to the technique described in patent document 1, the feet of the occupant seated on the rear seat can be prevented from abutting on the duct 153, so that the duct 153 protruding toward the rear seat side can be protected. However, since the cover member is integrally formed with the reclining device cover 191 that protects the reclining device, the reclining device cover 191 tends to be large-sized. As a result, the foot placement space for the occupant seated on the rear seat is narrowed, and as a result, the chance of the foot of the occupant on the rear seat coming into contact with the duct or the cover member increases.

The present invention has been made in view of the above-described problems, and an object thereof is to provide a vehicle seat capable of protecting a duct extending toward a rear seat, and suppressing an increase in size of a cover member disposed on a rear side of a seat cushion to secure a foot placement space for a passenger seated on the rear seat.

[ Means of solving the problems ]

The present invention provides a vehicle seat comprising a seat body having a seat cushion and a seat back, and a duct through which air sent from a blower passes, wherein the seat body has a seat frame as a skeleton of the seat body, and a skin material covering the seat frame, the duct has a rear extension portion extending so as to span a rear portion of the seat cushion and a lower portion of the seat back and extending further rearward than the seat cushion, and a duct protection member is provided on the skin material, and the duct protection member covers the rear extension portion to protect the rear extension portion.

According to the above configuration, since the duct protection member that protects the duct is provided in the skin material, the duct extending toward the rear seat can be protected from the feet of the occupant. The duct protection member provided on the skin material is deformable to follow the duct when the seat back portion is rotated by the reclining device to deform the duct. Therefore, compared to the case where the duct cover portion is formed as a cover member integral with the reclining device cover portion, the cover member disposed on the rear side of the seat cushion can be suppressed from becoming larger. This ensures a foot space for an occupant seated in the rear seat.

In addition, the duct protection member may be provided on a surface side of the skin material facing the rear extension portion.

According to this structure, the duct protection member is provided inside the skin material, and thus cannot be visually confirmed from the outside. Therefore, the pipe protection member can be used to suppress a decrease in the design of the vehicle seat.

In addition, the duct protection member may be provided only at a portion of the skin material facing the rear extension portion.

According to the above configuration, since the duct protection member is provided only in the portion facing the duct, it is possible to prevent the duct from being affected by the feet of the occupant seated in the rear seat, and to suppress an increase in size and weight of the vehicle seat.

The duct protection member may be a plate-like member that is separate from the skin material, and may be sewn to the skin material.

According to the above configuration, since the plate-shaped duct protection member is sewn and fixed to the skin material, the fixation (bonding) of the duct protection member to the skin material having flexibility can be improved.

The duct protection member may be sewn to the skin material over the entire periphery of the outer peripheral portion of the duct protection member.

According to the above configuration, the outer peripheral portion of the duct protection member is sewn to the skin material over the entire periphery of the outer peripheral portion, so that the fixation (bonding) of the duct protection member to the skin material can be improved.

In addition, the duct protection member may have a rear wall that covers a rear side of the rear extension.

According to this configuration, the impact on the duct when the feet of the occupant seated in the rear seat come into contact with the duct from the rear side can be alleviated, and the duct can be effectively protected.

In addition, the duct protection member may be disposed on an end portion side in the seat width direction of the seat cushion, and the duct protection member may have an inner side wall that covers an inner side in the seat width direction of the rear extension.

According to this structure, the impact on the duct when the feet of the occupant seated in the rear seat come into contact with the duct from the inner side in the seat width direction can be alleviated, so that the duct can be effectively protected.

In addition, the duct protection member may have an outer side wall that covers an outer side in the seat width direction of the rear extension.

According to this structure, the impact on the duct when the feet of the occupant seated in the rear seat come into contact with the duct from the outside in the seat width direction can be alleviated, so that the duct can be effectively protected.

The vehicle seat may further include an air blowing device disposed below the seat cushion, the air blowing device including the blower and the duct, the duct extending rearward below the seat cushion and extending toward the seat back while changing a direction of the air blowing device upward at the rear extending portion.

According to the above configuration, since the blower is disposed below the seat cushion, the seating space of the occupant can be ensured, and the air blown by the blower can be blown out toward the occupant, thereby improving the comfort of the occupant.

[ Effect of the invention ]

The present invention can protect the duct extending toward the rear seat, and can suppress an increase in the size of the cover member disposed on the rear side of the seat cushion to ensure the foot placement space for the occupant seated on the rear seat.

In addition, the pipe protection member can be used to suppress a decrease in the design of the vehicle seat.

In addition, the duct can be protected, and the increase in size and weight of the vehicle seat can be suppressed.

In addition, the fixability of the duct protection member to the skin material having flexibility can be improved.

In addition, the impact on the duct when the feet of the occupant seated in the rear seat are in contact with the rear of the duct can be alleviated, so that the duct can be effectively protected.

In addition, the impact on the duct when the feet of the occupant seated in the rear seat are in contact with the inner side of the duct in the seat width direction can be alleviated, so that the duct can be effectively protected.

In addition, the impact on the duct when the feet of the occupant seated in the rear seat come into contact with the outer side of the duct in the seat width direction can be alleviated, so that the duct can be effectively protected.

In addition, the seating space of the occupant can be ensured, and the air sent out by the air sending device can be blown out toward the occupant, thereby improving the comfort of the occupant.

Drawings

Fig. 1 is a perspective view of a vehicle seat according to the present embodiment.

Fig. 2 is a perspective view of the cushion material, and is a view showing a state in which the blower is assembled inside the seat main body.

Fig. 3 is a perspective view of the seat frame viewed from the rear.

Fig. 4 is a bottom view of the cushion frame with the blower mounted thereto.

Fig. 5 is a top view of the blower.

Fig. 6 is an enlarged view of the portion a of fig. 3.

Fig. 7 is a view showing a pipe in a state of being covered with a skin material.

Fig. 8 is an explanatory view of the duct cover section.

Fig. 9 is an explanatory view of a rear plate sewn to the back surface of the skin material.

Fig. 10 is a diagram showing a duct cover according to a modification.

Fig. 11 is a view showing a conventional duct cover.

[ Description of symbols ]

S: seat for vehicle

Sh: seat body

F: seat frame

1: Chair back

1A: skin material

2: Cushion pad for chair

2A: skin material

2A1: pipeline protection area

2A2: housing part

3: Headrest for head

10: Back frame

11: Back side frame

12: Upper frame

13: Lower frame

14: Connecting frame

15: Wire member

16: Compression member

17: Strut support

20: Gasket material

21: First lining material

21A: pipeline insertion hole

21B: air passage

22: Second gasket material

22C: vent hole

30: Cushion frame

31. 131: Cushion side frame

31A: flange

32: Disc type frame

33: Front connecting frame

34. 134: Rear connecting frame

35: Support member

40: Gasket material

41: First lining material

41A: pipeline insertion hole

41B: air passage

42: Second gasket material

42C: vent hole

50: Air supply device

51: Mounting bracket

52: Blower fan

53. 153: Pipeline

53A: blower connecting part

53B: first extension part

53C, 153c: bending part (rear extension)

53D: second extension part

53E: buckling part

54: A first blowout part

55: A second blowout part

60: Rear panel (pipeline protection component, back wall)

61: Stitching part

62: Inner side board (inner side wall)

63: Outer side plate (outer side wall)

70: Rail device

71: Lower rail

72: Upper rail

73: Sliding motor

74: Motor mounting bracket

90: Reclining device

91. 191: Reclining device cover

Detailed Description

Hereinafter, an embodiment of the present invention will be described with reference to fig. 1 to 9.

The present invention relates to a vehicle seat including a duct for blowing air, and is characterized in that air blown out from a blower is sent out to a seated person via the duct for blowing air, thereby improving the comfort of the seated person and protecting the duct from the feet of the seated person in a rear seat.

Further, the side on which the occupant sits is the seat front side with respect to the seat back of the vehicle seat.

< Integral Structure of vehicle seat S >

As shown in fig. 1 to 3, the vehicle seat S of the present embodiment is a vehicle seat, and includes a seat body Sh including a seat back 1, a seat cushion 2, and a headrest 3, and an air blowing device 50 that blows air toward a seated person as main constituent elements.

In addition, the vehicle seat S further includes: a rail device 70 that supports the seat main body Sh to be movable in the front-rear direction on the vehicle body floor; and a reclining device 90 that rotatably connects the seat back 1 to the seat cushion 2.

The seat back 1 is configured by placing a cushion material 20 on a back frame 10 (see fig. 3) constituting a framework of the seat back 1, and further covering the cushion material 20 with a skin material 1 a. The seat back 1 includes a seating surface as a support surface that supports the back of the occupant.

As shown in fig. 2, the seat back portion 1 is laminated with a first cushion material 21 and a second cushion material 22. The first and second gaskets 21 and 22 are made of a resin material such as foamed polypropylene.

The first spacer 21 is formed with a duct insertion hole 21a through which the duct 53 of the blower 50 is inserted, and a concave ventilation passage 21b for guiding air blown out from the duct insertion hole 21 a.

The second cushion material 22 is formed with a vent hole 22c, and air guided by the ventilation passage 21b is sent toward the occupant.

The duct insertion hole 21a is formed on the right side in the seat width direction. The ventilation passage 21b is formed to extend from the duct insertion hole 21a to the left side in the seat width direction and to the up-down direction. Thus, the air sent from the air blowing device 50 spreads over the entire seat back 1 and is blown out toward the occupant through the ventilation hole 22 c.

The seat cushion 2 mainly includes a cushion frame 30 (see fig. 3) that forms a skeleton of the seat cushion 2, and a cushion material 40 and a skin material 2a that cover the cushion frame 30. The seat cushion 2 is a seating portion that supports a seated person from below.

As shown in fig. 2, the seat cushion 2 is laminated with a first cushion material 41 and a second cushion material 42.

The first spacer 41 has a duct insertion hole 41a through which the duct 53 of the blower 50 is inserted.

Although not shown in fig. 2, a concave-shaped ventilation passage 41b for guiding air blown out from the duct insertion hole 41a is formed on the back side of the second cushion material 42. Further, a vent hole 42c is formed in the second cushion member 42, and air guided by the ventilation passage 41b is sent toward the occupant.

The duct insertion hole 41a is formed on the right side in the seat width direction. The ventilation passage 41b is formed to extend from the duct insertion hole 41a to the left side in the seat width direction and to the front-rear direction. Thus, the air sent from the air sending device 50 spreads over the entire seat cushion 2 and is blown out from the vent hole 42c toward the occupant.

Summary of the seat frame F

The outline of the structure of the seat frame F will be described with reference to fig. 3.

Fig. 3 shows a rear perspective view of the seat frame F. As shown in fig. 3, the seat frame F mainly includes a back frame 10 and a cushion frame 30. The back frame 10 forms a skeleton of a backrest portion in the seat frame F, and the cushion frame 30 forms a skeleton of a seating portion in the seat frame F.

Back frame 10

First, the back frame 10 will be described. As shown in fig. 3, the back frame 10 is configured in a frame shape by left and right back side frames 11 which are spaced apart from each other and extend in the up-down direction, an upper frame 12 which connects upper ends of the back side frames 11, and a lower frame 13 which connects lower ends.

The connecting frame 14 is provided between the left and right ends of the upper frame 12 above the back frame 10. The connecting frame 14 is a plate-shaped long member, and is connected to both ends of the upper frame 12 at both ends in the seat width direction.

A pressure receiving member 16 is disposed below the connection frame 14. The pressure receiving member 16 is connected to the connecting frame 14 via the wire member 15. The pressure receiving member 16 is a flexible plate member that supports the back of the seated person from behind. The pressure receiving member 16 is made of resin, but is not limited thereto. The pressure receiving member 16 may be made of metal.

A pillar support portion 17 is provided on the upper frame 12, and a headrest pillar (not shown) is attached to the pillar support portion 17. The headrest 3 is configured by providing a cushion member on the outer side of the headrest stay.

Cushion frame 30

Next, the cushion frame 30 will be described. As shown in fig. 3 and 4, the cushion frame 30 has a square frame-like outer shape when viewed from below. The cushion frame 30 mainly includes cushion side frames 31 at right and left ends in the seat width direction, a tray frame 32 at a front end of the cushion frame 30, a rear connecting frame 34 connecting the right and left cushion side frames 31 at a rear end, a front connecting frame 33 connecting the right and left cushion side frames 31 at a front, and a support member 35.

The left and right cushion side frames 31 are disposed at a distance in the left-right direction so as to define the width of the cushion frame 30, and extend in the front-rear direction. A rear connecting frame 34 is attached to the rear side of the cushion side frame 31, and the left and right cushion side frames 31 are connected to the rear side by the rear connecting frame 34.

The tray frame 32 is mainly used for supporting the thigh of a seated person (occupant), and is a frame including a metal plate material. The tray frame 32 is fixedly joined to the front sides of the left and right cushion side frames 31, and the left and right cushion side frames 31 are connected to the front sides by the tray frame 32. More specifically, the left and right ends of the tray frame 32 are fixed to flanges 31a provided on the cushion side frame 31 by fixing means such as welding.

The support member 35 has a front end locked to the front connecting frame 33 and a rear end locked to the rear connecting frame 34. The support member 35 is a plate member that has flexibility and is capable of supporting the seated person by receiving a load generated by the seated person from below. The support member 35 is made of resin, but is not limited thereto. The support member 35 may be made of metal.

Rail set 70 >

The rail device 70 is provided in a lower portion of the vehicle seat S (i.e., in a lower portion of the cushion frame 30) for moving the vehicle seat S in the front-rear direction. The rail device 70 is a general rail device that uses the rotational force of a motor.

Specifically, the rail device 70 includes a lower rail 71, an upper rail 72, and a slide motor 73 shown in fig. 3 and 4. The slide motor 73 shown in fig. 4 is attached to the motor mounting bracket 74, and moves the upper rail 72 back and forth relative to the lower rail 71 by the driving force of the slide motor 73.

The lower rail 71 is a rail member fixed to the vehicle body floor surface at the lower portion of the vehicle seat S (more precisely, at the lower position of the tray frame 32 of the cushion frame 30).

The upper rail 72 is a rail member fixed to the cushion frame 30 and movable in the front-rear direction along the lower rail 71. The lower rail 71 and the upper rail 72 are provided at positions spaced apart from each other in the seat width direction.

< Recliner device 90 >)

The back frame 10 and the cushion frame 30 are connected via a reclining device 90. The reclining device 90 has a known structure and rotatably supports the seat back 1 to the seat cushion 2.

The reclining device 90 is covered at both end portions in the seat width direction with reclining device cover portions 91 made of resin as cover members.

< Blower 50 >

Next, the blower 50 will be described. As shown in fig. 3 and 4, the blower 50 is disposed behind the seat back 1 and below the seat cushion 2. As shown in fig. 5, the blower 50 mainly includes a mounting bracket 51, a blower 52, a duct 53, a first blowout part 54, and a second blowout part 55.

The mounting bracket 51 fixes the blower 52 to the lower surface of the tray frame 32 so as to be located at the substantially center in the seat width direction. The mounting bracket 51 has a plurality of frame assembling portions for assembling to the lower surface of the disc frame 32. The frame assembly portion is disposed so as to surround the blower 52, and is assembled to the lower surface of the tray frame 32 by fastening bolts from below the mounting brackets 51.

The blower 52 is a propeller fan having rotating blades (not shown) and generating an air flow by rotationally driving the rotating blades. When the rotary blades disposed in the blower 52 rotate, air is sucked up from below, and an air flow generated by centrifugal force of the rotary blades flows into the duct 53 and is sent out toward the first blowout part 54 and the second blowout part 55. Blower 52 may also be a sirocco fan (sirocco fan) or a turbofan (turbofan).

As shown in fig. 4 and 5, the duct 53 is a hollow member having a blower coupling portion 53a, a first extending portion 53b, a bent portion 53c, a second extending portion 53d, and a bent portion 53 e.

The blower coupling portion 53a is an air inlet coupled to the blower 52 and into which air sent from the blower 52 flows.

The first extension 53b extends toward one side (right-hand side of the seated person) in the seat width direction and toward the rear side of the vehicle seat S below the seat cushion 2. By positioning the first extension portion 53b on one side in the seat width direction, interference with electrical components and electrical wiring disposed below the seat cushion 2 can be suppressed. Further, the first extension portion 53b is gradually directed to the right hand side of the seated person while being flexed, so that the air sent from the blower 52 can be guided to the first blowout portion 54 and the second blowout portion 55 described later without obstructing the flow.

The orthogonal cross section of the first extension 53b has a flat shape with a larger dimension in the horizontal direction than in the up-down direction. Thus, the first extension portion 53b can be positioned below the front connecting frame 33, and the space below the vehicle seat S can be ensured, so that the first extension portion 53b is prevented from abutting against the floor of the vehicle.

The first extension 53b is connected to a first blowout part 54 as a branching path. The first blowout part 54 extends upward and is inserted into the duct insertion hole 41a formed in the cushion material 40 of the seat cushion 2. Accordingly, a part of the air sent from the blower 52 can be sent from below the seat cushion 2 toward the occupant via the ventilation passage 41b formed in the cushion material 40.

The bent portion 53c connects the first extension portion 53b and the second extension portion 53d which extend in different directions from each other. The bent portion 53c is located rearward of the occupant and is an end portion side (right-hand side) in the seat width direction, and extends so as to straddle a rear portion of the seat cushion 2 and a lower portion of the seat back 1. The bent portion 53c extends rearward of the seat cushion 2. By positioning the bent portion 53c on one side (the right-hand side of the occupant) in the seat width direction, the foot of the occupant seated in the rear seat can be restrained from abutting against the bent portion 53c. As will be described later, the bent portion 53c is covered with the skin material 2a and the rear plate 60, and is protected by the rear plate 60. The bent portion 53c corresponds to a rearward extension.

The bent portion 53c has a corrugated structure in which mountain portions and valley portions are alternately formed. By providing the corrugated structure in the bent portion 53c, the strength of the pipe 53 can be ensured, and the stretchability and deformability can be improved. This allows the air that has passed through the first extension 53b and has passed backward to be redirected upward, thereby smoothly guiding the air to the second extension 53d. In addition, even when the seat back 1 is rotated relative to the seat cushion 2 by the reclining device 90, the bent portion 53c can flexibly follow the seat back 1 and be deformed.

The second extension 53d extends upward in the rear of the seat back 1, and is bent forward toward the duct insertion hole 21a formed in the cushion material 20.

The orthogonal cross section of the second extension 53d has a flat shape. This ensures a space behind the seat back 1, and suppresses interference between the second extension 53d and the harness disposed behind the seat back 1.

The buckling portion 53e is inserted into a duct insertion hole 21a formed so as to penetrate the cushion material 20 of the seat back 1 in the front-rear direction, and buckles to one side (the left-hand side of the occupant) in the seat width direction to guide the air flow sent from the blower 52 to the second blowout portion 55. By forming the buckling portion 53e such that the second blowout portion 55 faces the left-hand side of the seated person, the direction in which the ventilation passage 21b formed in the cushion material 20 extends can be made coincident with the blowout direction of the air. This allows the air sent out from the duct 53 to be smoothly guided toward the seated person. Further, by forming the bent portion 53e, the fixability of the second blowout part 55 to the cushion material 20 is improved, and thus the second blowout part 55 can be suppressed from accidentally falling out of the duct insertion hole 21 a.

The buckling portion 53e has a corrugated structure as in the bending portion 53 c. By providing the bellows structure in the buckling portion 53e, the strength of the pipe 53 can be ensured, and the stretchability and deformability can be improved. Thus, even when the cushion material 20 is deformed by applying a load of the occupant to the seat back 1, the buckling portion 53e is deformed so as to follow the cushion material 20, and the second blowout portion 55 can be displaced to an appropriate position. Further, by providing the bellows structure in the buckling portion 53e, it is possible to suppress the uncomfortable feeling of the presence of the second blowout portion 55 by the occupant, and to suppress breakage of the duct 53.

< Rear plate 60 >)

Next, the rear plate 60 will be described. Fig. 6 is an enlarged view of a portion a of fig. 3. As shown in fig. 6, the bent portion 53c of the duct 53 protrudes toward the rear seat side below the vehicle seat S. Therefore, in order to prevent the duct 53 from being damaged by the feet of the occupant seated in the rear seat coming into contact with the bent portion 53c, the bent portion 53c has been covered with a cover member or the like and protected. In this case, the cover member needs to have a size and shape that can cover the entirety of the folded portion 53c even when the seat back 1 is turned by the reclining device 90 and the folded portion 53c is deformed to be elongated. In addition, the conventional cover member is integrally formed with a reclining device cover portion 91 that protects the reclining device 90. Accordingly, there is a problem that the cover member is enlarged and the foot placement space of the occupant seated in the rear seat is reduced.

In contrast, the vehicle seat S of the present embodiment is provided with a rear plate 60 (see fig. 8) on the skin material 2a that covers the vehicle seat S. More specifically, the rear plate 60 is provided on the surface side of the skin material 2a facing the bent portion 53 c.

Fig. 7 shows a state in which the bent portion 53c of the vehicle seat S at the lower side is covered with the skin material 2a of the rear plate 60. Reference numeral 2a1 denotes a region (duct protection region) where the rear plate 60 is fixed to the inner side (the surface side facing the bent portion 53 c) of the skin material 2 a.

Fig. 8 is an explanatory view of the rear plate 60 fixed to the skin material 2a, and is a partial sectional view in which a main portion of the vehicle seat S is enlarged. As shown in fig. 8, the bent portion 53c extending so as to extend over the rear portion of the cushion frame 30 and the lower portion of the seat back 1 extends to the rear of the seat cushion 2, and is covered with the skin material 2 a. A rear plate 60 is fixed to a portion of the skin material 2a facing the bent portion 53 c.

The rear plate 60 is a plate-like member made of resin, and has strength required to protect the bent portion 53c from an impact when the feet of an occupant seated in the rear seat come into contact. The rear plate 60 has flexibility capable of deforming according to the shape of the bent portion 53c. When the seat back is turned and the bent portion 53c is deformed by operating the reclining device 90, the rear plate 60 is also deformed so as to follow the bent portion 53c. Thus, the rear plate 60 can follow the shape of the bent portion 53c to effectively protect the bent portion 53c. The rear plate 60 corresponds to a duct protection member and corresponds to a rear wall.

As shown in fig. 9, the rear plate 60 is fixed to the skin material 2a by stitching. Specifically, the rear plate 60 is sewn to the skin material 2a at a sewn portion 61 provided over the entire periphery of the outer periphery thereof. As described above, since the skin material 2a includes the cloth, by sewing the entire periphery of the outer periphery of the rear plate 60 to the skin material 2a, the rear plate 60 can be reliably fixed to the skin material 2a without impairing the flexibility of the skin material 2a. However, the rear plate 60 may be fixed to the skin material 2a by an adhesive.

The skin material 2a is formed with a housing portion 2a2, and the housing portion 2a2 has a shape corresponding to the bent portion 53c and is capable of housing the bent portion 53c. A region (duct protection region 2a 1) to which the rear plate 60 is sewn and fixed is formed inside the housing portion 2a2 (a portion facing the rear side of the bent portion 53 c) (see fig. 7 and 8).

The folded portion 53c is protected by the rear plate 60 sewn to the inner side of the skin material 2a, but the present invention is not limited thereto. The folded portion 53c may be protected by a laminate of a plurality of woven or non-woven fabrics or a thick cloth. The bent portion 53c may be protected by providing a region in the skin material 2a into which resin is infiltrated and cured.

By providing the rear plate 60 on the skin material 2a that is capable of being deformed flexibly in this manner, it is possible to suppress an increase in size of the reclining device cover 91 as compared with a case where the duct cover is integrally formed with the reclining device cover 91. Therefore, the foot space of the occupant seated in the rear seat of the vehicle seat S can be ensured, and the duct 53 can be effectively protected. Further, by providing the rear plate 60 only at the portion facing the bent portion 53c of the duct 53, the duct 53 can be protected more compactly.

< Modification >

The configuration of the vehicle seat S according to the embodiment of the present invention has been described above, but the above-described embodiment is merely an example for facilitating understanding of the present invention, and the present invention is not limited thereto. That is, the present invention can be modified and improved without departing from the gist thereof, and the present invention naturally includes equivalents thereof.

The pipe protection region 2a1 of the modification will be described with reference to fig. 10. In the above-described embodiment, the case where the rear plate 60 is provided at the portion of the pipe protection region 2a1 facing the bent portion 53c is described. In contrast, the duct protection area 2a1 of the modification is provided with a rear plate 60, an inner plate 62, and an outer plate 63.

The inner panel 62 protects the seat width direction inner side of the folded portion 53c by covering the seat width direction inner side of the folded portion 53 c. The inner panel 62 is integrally formed with the rear panel 60. By providing the inner panel 62, the duct 53 can be protected when the feet of an occupant seated in the rear seat come into contact with the bent portion 53c from the inner side in the seat width direction. The inner panel 62 corresponds to an inner side wall.

The outer panel 63 protects the outer side of the folded portion 53c in the seat width direction by covering the outer side of the folded portion 53c in the seat width direction. The outer panel 63 is integrally formed with the rear panel 60. By providing the outer panel 63, the duct 53 can be protected when the feet of an occupant seated in the rear seat come into contact with the bent portion 53c from the outside in the seat width direction. The outer panel 63 corresponds to an outer side wall.

As shown in fig. 10, the inner panel 62 has a length dimension substantially equal to that of the rear panel 60. In contrast, the outer panel 63 has a smaller length dimension than the rear panel 60. By making the length of the outer plate 63 smaller than the rear plate 60 and the inner plate 62 in this way, interference between the outer plate 63 and the reclining device cover 91 can be suppressed while protecting the outer side of the duct 53 in the seat width direction.

In the above-described embodiment, the case where the duct insertion hole 21a and the ventilation passage 21b are formed in the cushion material 20 of the seat back 1 and the duct insertion hole 41a and the ventilation passage 41b are also formed in the cushion material 40 of the seat cushion 2 has been described, but the present invention is not limited thereto. The duct insertion hole 21a and the ventilation passage 21b may be formed only in the cushion material 20 of the seat back 1.

In the above-described embodiment, the vehicle seat S used in the automobile is illustrated as the vehicle seat, but the present invention is not limited to this, and is also applicable to other vehicle seats, for example, seats used in ships, airplanes, and the like.

Claims (9)

1. A vehicle seat comprising a seat body having a seat cushion and a seat back, and a duct through which air sent from a blower passes, characterized in that,

The seat body has a seat frame as a skeleton of the seat body, and a skin material covering the seat frame,

The duct has a rear extension extending across a rear portion of the seat cushion and a lower portion of the seat back and extending further rearward than the seat cushion,

A duct protection member is provided on the skin material, and covers the rear extension portion to protect the rear extension portion.

2. The vehicle seat according to claim 1, wherein the duct protection member is provided on a surface side of the skin material that faces the rear extension portion.

3. The vehicle seat according to claim 1 or 2, wherein the duct protection member is provided only at a portion of the skin material that faces the rear extension.

4. The vehicle seat according to claim 1 or 2, wherein the duct protection member is a plate-like member that is separate from the skin material, and is sewn to the skin material.

5. The vehicle seat according to claim 4, wherein the duct protection member is sewn to the skin material throughout an entire periphery of an outer peripheral portion of the duct protection member.

6. The vehicle seat according to claim 1 or 2, characterized in that the duct protection member has a rear wall covering a rear side of the rear extension.

7. The vehicle seat according to claim 6, wherein the duct protection member is disposed on an end side of the seat cushion pad in a seat width direction,

The duct protection member has an inner side wall that covers an inner side in a seat width direction of the rear extension.

8. The vehicle seat according to claim 7, wherein the duct protection member has an outer side wall that covers an outer side in a seat width direction of the rear extension.

9. The vehicle seat according to claim 1 or 2, wherein the vehicle seat comprises an air blowing device disposed below the seat cushion, having the blower and the duct,

The duct extends toward the rear side below the seat cushion and changes direction toward the seat back upward at the rear extension.