Seat for vehicle

Abstract

To suppress suspending of a lower side coating part accompanied by reclining of a seat back.SOLUTION: A seat 10 for a vehicle includes a seat cushion 12 provided with a part 22 to be engaged, and a seat back 14 supported on the seat cushion 12 in a reclining manner. The seat 10 for the vehicle includes a back trim body 28 forming the surface of the seat back 14, and a lower side coating part 30 extending to the seat lower side of the seat cushion 12 from the seat rear side of the back trim body 28 and the seat lower side. A side opposite to the back trim body 28 in the lower side coating part 30 is engaged with the part 22 to be engaged. The seat 10 for the vehicle includes an elastic member 34 which is formed using an elastic member, and connects an intermediate part 30D in a seat longitudinal direction in the lower side coating part 30 and the part 22 to be engaged, in the seat longitudinal direction.SELECTED DRAWING: Figure 1

Description

[Technical Field]

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

[0002] Patent Document 1 below discloses a vehicle seat on which a vehicle occupant sits. The seat cover constituting part of the seat back of the vehicle seat described in this document is formed in a bag shape with a rectangular opening. A lower belt member is attached to the lower rear surface of the seat cover on the opening side. The lower belt member is arranged so as to wrap around from below the seat back to the underside of the seat cushion. The lower belt member is fastened to the seat cushion side via a band member, so that the lower belt member is kept arranged along the underside of the seat cushion. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-187413 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in a configuration having a lower covering part that extends from the lower part of the back of the back trim main body toward the bottom side of the seat cushion, such as the seat cover with a lower belt member described in Patent Document 1 above, it is possible that as the seat back is reclined, the member holding the lower covering part in place will come off, causing the lower covering part to sag.

[0005] In consideration of the above, an object of the present invention is to provide a vehicle seat that can prevent a lower covering portion from sagging when the seat back is reclined. [Means for solving the problem]

[0006] The vehicle seat of the first embodiment comprises a seat cushion that supports the buttocks of a seated occupant from the underside of the seat and has an engaging portion on the underside of the seat; a seat back that supports the back of the seated occupant from the rear side of the seat and is supported so that it can be reclined relative to the seat cushion; a back trim main body that forms the surface of the seat back; a lower covering portion that extends from the rear and underside of the back trim main body toward the underside of the seat cushion and has the side opposite the back trim main body engaged with the engaging portion; and an elastic member that is formed using an elastic member and connects a middle portion of the lower covering portion in the fore-and-aft direction of the seat to the engaging portion in the fore-and-aft direction of the seat.

[0007] In the vehicle seat of the first aspect, the surface of the seat back is formed by the back trim main body. The lower covering portion extends from the rear and lower side of the back trim main body toward the lower side of the seat cushion. The side of the lower covering portion opposite the back trim main body is engaged with a locking portion provided on the lower side of the seat cushion. An elastic member having elasticity connects a middle portion of the lower covering portion in the seat front-rear direction to the locking portion in the seat front-rear direction. With this configuration, when the tension generated in the lower covering portion decreases as the seat back is reclined, the elastic member pulls the middle portion of the lower covering portion in the seat front-rear direction toward the front. This prevents the lower covering portion from sagging as the seat back is reclined.

[0008] The vehicle seat of the second aspect is the vehicle seat of the first aspect, wherein a portion of the lower cover portion on the seat front side is supported from below the seat by the elastic member.

[0009] In the vehicle seat of the second aspect, the front portion of the lower covering portion is supported from below the seat by an elastic member, which can prevent the front portion of the lower covering portion from sagging, compared to a configuration in which the front portion of the lower covering portion is not supported from below the seat by an elastic member. [Effects of the Invention]

[0010] The vehicle seat according to the present invention has the excellent effect of being able to prevent the lower covering portion from sagging when the seat back is reclined. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a cross-sectional view schematically showing a cross section of a vehicle seat taken along the front-rear direction and the up-down direction. [Figure 2] FIG. 2 is a cross-sectional view corresponding to FIG. 1, which shows a cross section of the vehicle seat cut along the front-to-rear and up-to-down directions, and shows a state in which the seat back is tilted rearward relative to the state shown in FIG. [Figure 3] FIG. 2 is a bottom view of the lower covering portion and the like seen from below. DETAILED DESCRIPTION OF THE INVENTION

[0012] 1 to 3, a vehicle seat 10 according to an embodiment of the present invention will be described. In the drawings, the arrow FR indicates the front side of the seat, the arrow UP indicates the upper side of the seat, the arrow LH indicates the left side in the seat width direction, and the arrow RH indicates the right side in the seat width direction. In the following description, unless otherwise specified, when referring to front-rear, up-down, and left-right directions, these refer to front-rear in the seat front-rear direction, up-down in the seat up-down direction, and left-right in the seat width direction.

[0013] As shown in Figures 1 and 2, the vehicle seat 10 of this embodiment includes a seat cushion 12 that supports the buttocks of a seated occupant from below, and a seat back 14 that supports the back of the seated occupant from the rear.

[0014] The seat cushion 12 includes a cushion pad 16 and a cushion trim 18 that covers the cushion pad 16. The seat cushion 12 also includes a seat equipment 20 provided below the cushion pad 16. The seat equipment 20 is, for example, a part of a seat air conditioning system that blows air toward the buttocks of a seated occupant or draws air toward the buttocks of the seated occupant. The seat equipment 20 may also be a device that performs other functions. The seat cushion 12 may not include the seat equipment 20 described above. As shown in FIGS. 1 to 3, the seat cushion 12 includes a pair of left and right engaged portions 22 that protrude forward from the front end of the seat equipment 20. As shown in FIG. 3, the pair of left and right engaged portions 22 are arranged at an interval in the left-right direction.

[0015] 1 and 2, the seat back 14 is supported at the rear end of the seat cushion 12 so as to be reclined (tiltable) with the left-right direction as the axial direction. The seat back 14 includes a back pad 24 and a back trim 26 that covers the back pad 24 and the like.

[0016] The back trim 26 is configured to include a back trim main body 28 that forms the surface of the seat back 14, and a lower covering portion 30 that is fixed to the back trim main body 28. The back trim main body 28 is made of cloth, leather, synthetic leather, or the like, and covers the back pad 24, etc. The portion of the back trim main body 28 that forms the rear surface of the seat back 14 will be referred to as a rear covering portion 32.

[0017] The lower covering part 30 is formed using a sheet-like material that is harder than the back trim main body 28. As an example, the lower covering part 30 in an unfolded state has a rectangular shape when viewed in the thickness direction. As shown in FIG. 2, one end 30A of the lower covering part 30 is fixed along the left-right direction to a lower portion of the rear covering part 32 by sewing or the like. As shown in FIG. 3, an end 30B of the lower covering part 30 opposite the rear covering part 32 (hereinafter simply referred to as the "other end 30B of the lower covering part 30") is formed with a pair of left and right locking holes 30C spaced apart in the left-right direction. Then, as shown in FIGS. 1 to 3, the lower covering part 30 is positioned so as to extend from the rear covering part 32 toward the lower side of the seat cushion 12, and the pair of left and right locked parts 22 are inserted into the pair of left and right locking holes 30C formed in the other end 30B of the lower covering part 30. As a result, the other end 30B of the lower covering portion 30 is engaged with a pair of left and right engaging portions 22, and a portion of the seat cushion 12 is covered from below by the lower covering portion 30.

[0018] A pair of left and right elastic members 34 are fixed to the intermediate portion 30D in the front-rear direction of the lower covering part 30. The elastic members 34 are formed in a ribbon shape using an elastic material such as rubber. One end 34A and the other end 34B of one elastic member 34 are fixed by sewing or the like to a left portion of the intermediate portion 30D in the front-rear direction of the lower covering part 30 with a gap therebetween. Similarly, one end 34A and the other end 34B of the other elastic member 34 are fixed by sewing or the like to a right portion of the intermediate portion 30D in the front-rear direction of the lower covering part 30 with a gap therebetween. Furthermore, portions 34C of the pair of left and right elastic members 34 opposite to the side fixed to the lower covering part 30 are respectively locked to a pair of left and right locked portions 22. As a result, the intermediate portion 30D in the front-rear direction of the lower covering part 30 and the pair of left and right locked portions 22 are connected in the front-rear direction by the pair of left and right elastic members 34. As a result, the intermediate portion 30D in the front-to-rear direction of the lower covering part 30 is pulled forward by the pair of left and right elastic members 34, and slack in the lower covering part 30 is removed. Furthermore, when the intermediate portion 30D in the front-to-rear direction of the lower covering part 30 is pulled forward by the pair of left and right elastic members 34, the intermediate portion 30D in the front-to-rear direction of the lower covering part 30 is folded three times. Alternatively, the intermediate portion 30D in the front-to-rear direction of the lower covering part 30 may be cut in the front-to-rear direction and sewn along the left-to-right direction with the area around the cut portion as a seam allowance. This configuration makes it easy to maintain the intermediate portion 30D in the front-to-rear direction of the lower covering part 30 folded three times. Furthermore, when the intermediate portion 30D in the front-to-rear direction of the lower covering portion 30 is pulled forward by the pair of left and right elastic members 34, the front portion 30E of the lower covering portion 30 is supported from below by the pair of left and right elastic members 34.

[0019] (Actions and Effects of This Embodiment) Next, the operation and effects of this embodiment will be described.

[0020] In the vehicle seat 10 of the present embodiment described above, when the seat back 14 is helically reclined (tilted backward) from the state shown in FIG. 1 to the state shown in FIG. 2, the distance between the portion of the rear covering portion 32 to which the lower covering portion 30 is fixed and the pair of left and right locked portions 22 becomes shorter. As a result, when the tension generated in the lower covering portion 30 decreases, the pair of left and right elastic members 34 pull the intermediate portion 30D of the lower covering portion 30 in the front-rear direction toward the front. This removes slack in the lower covering portion 30 that occurs when the seat back 14 is reclined. As a result, sagging of the lower covering portion 30 can be prevented when the seat back 14 is reclined. Furthermore, by preventing sagging of the lower covering portion 30, the other end portion 30B of the lower covering portion 30 can be prevented from coming off the pair of left and right locked portions 22.

[0021] Furthermore, in this embodiment, the front portion 30E of the lower covering part 30 is supported from below by a pair of left and right elastic members 34. In this configuration, sagging of the front portion 30E of the lower covering part 30 can be suppressed compared to a configuration in which the front portion 30E of the lower covering part 30 is not supported from below by a pair of left and right elastic members 34.

[0022] In the present embodiment, an example has been described in which the front portion 30E of the lower covering part 30 is supported from below by the pair of left and right elastic members 34, but the present invention is not limited to this. Whether or not the front portion 30E of the lower covering part 30 is supported from below by the pair of left and right elastic members 34 can be determined appropriately taking into consideration the rigidity of the material of the lower covering part 30, etc.

[0023] The above describes one embodiment of the present invention, but the present invention is not limited to the above, and it goes without saying that it can be implemented in various other modified forms within the scope of the gist of the present invention. [Explanation of symbols]

[0024] 10 Vehicle seats 12 seat cushions 14 Seat back 22 Locked part 28 Back trim body 30 Lower covering part 30D The middle part of the lower covering part in the front-to-rear direction of the seat 30E Lower covering part on the front side of the seat 34 Elastic member

Claims

1. a seat cushion that supports the buttocks of a seated occupant from below the seat and has a locking portion provided on the below side of the seat; a seat back that supports the back of a seated occupant from the rear side of the seat and is supported so as to be reclined relative to the seat cushion; a back trim body that forms the surface of the seat back; a lower covering portion that extends from the seat rear side and the seat lower side of the back trim main body toward the seat lower side of the seat cushion and has an opposite side to the back trim main body engaged with the engaged portion; an elastic member that is formed using an elastic member and connects a middle portion of the lower covering portion in the seat front-rear direction and the engaged portion in the seat front-rear direction; A vehicle seat comprising:

2. 2. The vehicle seat according to claim 1, wherein a portion of the lower cover portion on the front side of the seat is supported from below the seat by the elastic member.

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