Vehicle seats

Abstract

To inhibit damage of the appearance quality.SOLUTION: A vehicular seat 10 includes: a seat back body 28 in which an intermediate part as seen in a seat vertical direction serves as a bending part 34 which bends in a seat anteroposterior direction; and a seat trim 30. The seat trim 30 includes a first cover part 54 which is formed using a cloth-like member having elasticity and covers the bending part 34 from the seat rear side. Further, the seat trim 30 includes a second cover part 56 which is formed using a cloth-like member less elastic than the first cover part 54, joined to the first cover part 54 and covers a portion different from a portion covered by the first cover part 54 at the seat rear side of the seat back body 28. Further, the seat trim 30 includes a third cover part 58 which is formed using a cloth-like member more elastic than the second cover part 56 and covers the first cover part 54 and the second cover part 56 from the seat rear side.SELECTED DRAWING: Figure 5

Description

Technical Field

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

Background Art

[0002] Patent Document 1 below discloses a vehicle seat capable of bending (folding in the middle) the middle part of the seat back in the seat vertical direction. In the vehicle seat described in this document, it is possible to bend the middle part of the seat back in the seat vertical direction in a state where the lower part is inclined forward from a predetermined position of the seat back and the upper part is inclined backward from the predetermined position.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in a vehicle seat capable of bending the middle part of the seat back in the seat vertical direction, it is desirable to be able to suppress the deterioration of the appearance quality due to slack, unevenness, etc. of the seat trim, but the vehicle seat described in Patent Document 1 above does not consider this point.

[0005] In consideration of the above facts, an object of the present invention is to obtain a vehicle seat capable of suppressing the deterioration of the appearance quality.

Means for Solving the Problems

[0006] A vehicle seat according to the first embodiment includes a seat back body that supports the back of a seated occupant and has a bent portion in the middle of the seat in the vertical direction that bends in the front-rear direction of the seat; a first covering portion formed of an elastic fabric-like material that covers a part of the rear side of the seat back body; a second covering portion formed of an elastic fabric-like material that is less elastic than the first covering portion and is joined to the first covering portion, and covers a portion of the seat back body that protrudes further to the rear of the seat than the portion covered by the first covering portion on the rear side of the seat; and a third covering portion formed of an elastic fabric-like material that is less elastic than the first covering portion and covers the first covering portion and the second covering portion from the rear side of the seat.

[0007] In the first embodiment of the vehicle seat, the rear side of the seat back body is covered by a seat trim. The seat trim comprises a first covering portion, a second covering portion joined to the first covering portion, and a third covering portion covering the first and second covering portions. Here, a portion of the seat back body is covered from the rear side by the first covering portion of the seat trim. The first covering portion is formed using an elastic material. This allows the first covering portion to follow the bending of the seat back body. Furthermore, the portion of the seat back body that protrudes further to the rear of the seat than the portion covered by the first covering portion is covered by the second covering portion of the seat trim. The second covering portion is formed using a cloth-like material that is less elastic than the first covering portion. This prevents sagging and unevenness from occurring in the second covering portion due to the bending of the seat back. Furthermore, the first and second covering portions are covered by a third covering portion. The third covering portion is formed using a fabric-like material with less elasticity than the first covering portion. This prevents sagging and unevenness from forming on the third covering portion due to the bending of the seat back body.

[0008] The second embodiment of the vehicle seat is a vehicle seat in which, in the first embodiment, a retractor is fixed to the seat back body, and a seat belt worn by a seated occupant is wound up, and the second covering portion covers the portion of the seat back body to which the retractor is fixed.

[0009] In the second embodiment of the vehicle seat, the portion of the seat back body to which the retractor is fixed is covered by a second covering portion of the seat trim. This configuration makes it possible to suppress the occurrence of irregularities in the second covering portion that correspond to the shape of the retractor.

[0010] In the third embodiment of the vehicle seat, when the third covering portion is pulled toward the rear of the seat, a gap is formed between the first covering portion, the second covering portion and the third covering portion, allowing the second covering portion to be seen.

[0011] According to the third embodiment of the vehicle seat, when the third covering portion is pulled toward the rear of the seat, a gap is formed between the first and second covering portions and the third covering portion. This makes it possible to visually confirm whether or not the second covering portion is positioned in a position corresponding to the retractor.

[0012] The fourth embodiment of the vehicle seat is the vehicle seat of the second embodiment, wherein the second covering portion has a recess formed therein in which a part of the retractor can be positioned.

[0013] According to the fourth embodiment of the vehicle seat, the second covering portion has a recess formed therein in which a part of the retractor can be positioned. This reduces the load on the second covering portion caused by contact with the retractor. [Effects of the Invention]

[0014] The vehicle seat according to the present invention has the excellent effect of suppressing deterioration of appearance quality. [Brief explanation of the drawing]

[0015] [Figure 1] This is a front view showing a vehicle seat. [Figure 2] This is a rear view showing a vehicle seat. [Figure 3] Figure 2 is a cross-sectional view showing the seat trim of a vehicle seat cut along line 3-3. [Figure 4] Figure 2 is a cross-sectional view showing the seat trim of a vehicle seat cut along line 4-4. [Figure 5] This is a rear view showing a vehicle seat, with the first and second covering sections indicated by dashed lines. [Figure 6] This diagram shows the first and second covering parts, etc. [Figure 7] This is a perspective view of the vehicle seat from the right rear, showing the third covering section pulled towards the rear. [Modes for carrying out the invention]

[0016] A vehicle seat 10 according to an embodiment of the present invention will be described with reference to Figures 1 to 6. The arrows FR, UP, RH, and LH in the figures indicate the front, top, right, and left sides of the seat, respectively, as viewed from the perspective of an occupant seated in the vehicle seat 10. Hereafter, when simply referring to the front-to-back, up-and-down, and left-to-right directions, unless otherwise specified, these refer to the front-to-back direction of the seat, the up-and-down direction of the seat, and the left-to-right direction of the seat. Furthermore, the left-to-right direction of the seat coincides with the seat width direction.

[0017] As shown in FIG. 1, the vehicle seat 10 includes a seat cushion 12 that supports the buttocks of the seated occupant from below, a seat back 14 that supports the back of the seated occupant from the rear, and a headrest 16 that supports the head of the seated occupant from the rear. The vehicle seat 10 also includes a seat belt device 20 having a seat belt 18 that is worn on the body of the seated occupant. Here, the seat belt device 20 of the present embodiment is a so-called three-point seat belt device. The seat belt device 20 includes a retractor 22 and a seat belt 18 wound around the retractor 22. The seat belt 18 can be pulled forward from a through-anchor portion 24 that forms an opening provided at the upper right end of the seat back 14. The seat belt device 20 also includes a fixing plate (not shown) to which the end of the seat belt 18 opposite to the side wound around the retractor 22 is fixed, a tongue plate (not shown) inserted through the seat belt 18, and a buckle 26 to which the tongue plate is locked. The fixing plate (not shown) is fixed to the rear end side of the right end of the seat cushion 12. The buckle 26 is fixed to the rear end side of the left end of the seat cushion 12. Then, a passenger seated on the vehicle seat 10 pulls out the seat belt 18 and locks a tongue plate (not shown) to the buckle 26. As a result, the seat belt 18 is worn on the body of the passenger seated on the vehicle seat 10.

[0018] The seat back 14 includes a seat back main body 28 that constitutes the main part of the portion that supports the back of the seated occupant, and a seat trim 30 that covers the seat back main body 28.

[0019] The seat back main body 28 includes a back frame that constitutes the skeleton of the seat back main body 28, a cushioning material attached to the back frame, and a bending mechanism 32 for bending the seat back main body 28. Here, the bending mechanism 32 is provided inside the middle part in the vertical direction of the seat back main body 28 and below the part where the retractor 22 is provided. By the operation of this bending mechanism 32, it is possible to bend the middle part in the vertical direction of the seat back main body 28. The part that bends in the middle part in the vertical direction of the seat back main body 28 will be referred to as the bending part 34. When the bending mechanism 32 operates, the part 28A above the bending part 34 in the seat back main body 28 tilts in the front-rear direction with respect to the part 28B below the bending part 34.

[0020] Further, the seat back main body 28 is provided with functional components such as the aforementioned retractor 22 and a blower for blowing air to the seated occupant. These functional components are fixed to the seat back frame. Here, when the bending mechanism 3 operates, when the part 28A above the bending part 34 in the seat back main body 28 tilts forward with respect to the part 28B below the bending part 34, the periphery of the bending part 34 in the seat back main body 28 protrudes toward the rear side. And the part where the retractor 22 is provided in the seat back main body 28 is the part that protrudes most rearward on the rear side of the seat back main body 28.

[0021] As shown in FIGS. 2, 3 and 4, the seat trim 30 includes a front covering member 36 that covers the front side of the seat back main body 28, a pair of left and right side covering members 38 that cover both ends in the left-right direction of the seat back main body 28, and a rear covering member 40 that covers the rear side of the seat back main body 28.

[0022] Next, the configuration of the rear covering member 40, which is the main part of this embodiment, will be described.

[0023] As shown in Figure 2, the rear covering member 40 includes a pair of left and right side covering portions 42 that cover both sides of the rear of the seat back body 28 in the left-right direction. The rear covering member 40 also includes an upper covering portion 44 that covers the central and upper part of the seat back body 28 in the left-right direction. The left and right ends of the upper covering portion 44 are joined to the inner ends of the pair of left and right side covering portions 42 in the seat width direction. Furthermore, the rear covering member 40 includes a central covering portion 46 that covers the central part of the seat back body 28 in the left-right direction and below the part covered by the upper covering portion 44.

[0024] As shown in Figures 3, 4, and 5, the central covering portion 46 has a double structure in the front-to-back direction. Here, the member constituting the front side of the central covering portion 46 will be called the front component 48, and the member constituting the rear side of the central covering portion 46 will be called the rear component 50. Both ends of the front component 48 in the left-right direction are joined to the inner ends in the sheet width direction of the pair of left and right side covering portions 42. In addition, the upper end of the front component 48 is joined to the lower end of the upper covering portion 44.

[0025] As shown in Figures 5 and 6, the front component 48 is composed of a pair of left and right end covering portions 52, a first covering portion 54, and a second covering portion 56.

[0026] The pair of left and right end coverings 52 are formed using a low-stretch fabric-like material, such as carpet, and are formed in a strip shape with the vertical direction as the longitudinal direction when viewed from the rear. The right end covering 52 is formed integrally with the second covering 56, which will be described later.

[0027] The first covering portion 54 is formed using, for example, a stretchable fabric-like material called tricot. This first covering portion 54 is formed in a shape in which the portion corresponding to the second covering portion 56, which will be described later, has been cut out. More specifically, the upper portion 54A of the first covering portion 54 is formed in a rectangular shape with the left-right direction as the longitudinal direction when viewed from the rear. Both ends of the upper portion 54A of the first covering portion 54 are joined to the inner ends in the sheet width direction of the pair of left and right end covering portions 52 by sewing or the like. The lower portion 54B of the first covering portion 54 is formed in a roughly square shape when viewed from the rear. Both ends of the lower portion 54B of the first covering portion 54 are joined to the inner ends in the sheet width direction of the pair of left and right end covering portions 52 by sewing or the like. Furthermore, the upper and lower middle portion 54C of the first covering portion 54 is formed in a rectangular shape with the upper and lower direction as the longitudinal direction when viewed from the rear. The upper-lower intermediate portion 54C of the first covering portion 54 connects the left side of the upper portion 54A and the left side of the lower portion 54B of the first covering portion 54 in the vertical direction. Furthermore, the left end of the upper-lower intermediate portion 54C of the first covering portion 54 is joined to the inner end in the sheet width direction of the left end covering portion 52 by sewing or the like.

[0028] The second covering portion 56 is formed using a fabric-like material that is less stretchable than the first covering portion 54. In this embodiment, the second covering portion 56 is formed using a fabric-like material with low elasticity, such as carpet, similar to the end covering portion 52. The second covering portion 56 is formed in a square shape when viewed from the rear. The upper end, left end, and lower end of this second covering portion 56 are joined to the lower end of the upper part 54A of the first covering portion 54, the right end of the upper and lower intermediate part 54C, and the upper end of the lower part 54B of the first covering portion 54, respectively, by sewing or the like. In this embodiment, the second covering portion 56 covers the portion of the seat back body 28 to which the retractor 22 is fixed from the rear. Recesses 56A are formed in the upper and lower and left and right intermediate parts of the second covering portion 56, in which a part of the retractor 22 can be placed. These recesses 56A are formed in a concave shape with the retractor 22 side open.

[0029] As shown in Figure 5, the rear component 50 is composed of a single third covering portion 58. The third covering portion 58 is formed using a fabric-like material with low elasticity, similar to the second covering portion 56. The third covering portion 58 in this embodiment is formed using a fabric-like material with low elasticity, such as carpet, similar to the second covering portion 56. The third covering portion 58 is formed in a rectangular shape with the vertical direction as its longitudinal direction when viewed from the rear. The vertical and horizontal dimensions of this third covering portion 58 are set to be such that they can cover the entire first covering portion 54 and the second covering portion 56 from the rear. The upper end, left end, and lower end of the third covering portion 58 (rear component 50) are joined to the upper end, left end, and lower end of the front component 48 by sewing or the like, respectively. In addition, the right end 58A of the third covering portion 58 (rear component 50) and the right end of the front component 48 are partially joined via a hook-and-loop fastener 60. In this embodiment, two hook-and-loop fasteners 60 are attached to the right end 58A of the third covering portion 58, spaced apart in the vertical direction.

[0030] (Operation and effects of this embodiment) Next, the operation and effects of this embodiment will be described.

[0031] As shown in Figures 2, 3, 4, and 5, according to the vehicle seat 10 of this embodiment described above, the rear side of the seat back body 28 is covered by the rear covering member 40 of the seat trim 30. The rear covering member 40 has a central covering portion 46 which has a double structure consisting of a front component 48 and a rear component 50.

[0032] The first covering portion 54, which constitutes a part of the front component 48, is formed using an expandable material. This allows the first covering portion 54 to follow the bending of the bent portion 34 of the seat back 14.

[0033] Furthermore, the portion of the seat back body 28 to which the retractor 22 is fixed is covered by a second covering portion 56, which constitutes another part of the front component 48. The second covering portion 56 is formed using a fabric-like material that is less prone to stretching than the first covering portion 54. This makes it possible to suppress the occurrence of sagging and unevenness in the second covering portion 56 due to the bending of the bent portion 34 of the seat back body 28. In particular, it is possible to suppress the occurrence of unevenness in the second covering portion 56 corresponding to the shape of the retractor 22 as the retractor 22 comes into contact with the second covering portion 56.

[0034] The first covering portion 54 and the second covering portion 56, which constitute the majority of the front component 48, are covered by the third covering portion 58, which constitutes the rear component 50. The third covering portion 58 is formed using a fabric-like material with low elasticity, similar to the second covering portion 56. This suppresses the formation of sagging, unevenness, etc., on the third covering portion 58 due to the bending of the bend portion 34 of the seat back body 28. Furthermore, in the configuration of this embodiment, because the first covering portion 54 and the second covering portion 56 are covered by the third covering portion 58, the joint between the first covering portion 54 and the second covering portion 56 is not visible or is difficult to see from the rear side of the seat. As a result, the appearance quality of the vehicle seat 10 of this embodiment can be suppressed.

[0035] Furthermore, in this embodiment, as shown in Figure 7, when the right end 58A of the third covering portion 58 is pulled toward the rear of the seat, a gap 62 is formed between the first covering portion 54 and the second covering portion 56 and the third covering portion 58. This makes it possible to visually confirm whether or not the second covering portion 56 is positioned in a location corresponding to the retractor 22 (see Figure 5).

[0036] Furthermore, in this embodiment, as shown in Figures 5 and 6, a recess 56A is formed in the second covering portion 56, in which a part of the retractor 22 can be positioned. This reduces the load on the second covering portion 56 caused by contact with the retractor 22.

[0037] In this embodiment, an example has been described in which a recess 56A in which a part of the retractor 22 can be placed is formed in the second covering portion 56, but the present invention is not limited to this. Whether or not to form a recess 56A in which a part of the retractor 22 can be placed in the second covering portion 56 can be appropriately determined by considering the contact pressure between the retractor 22 and the second covering portion 56, etc.

[0038] Furthermore, in this embodiment, a configuration in which a gap 62 is formed between the first covering portion 54 and the second covering portion 56 and the third covering portion 58 when the right end portion 58A of the third covering portion 58 is pulled toward the rear of the sheet has been described, but the present invention is not limited to this. For example, the right end portion 58A of the third covering portion 58 may be joined to the right end portion of the front component member 48 by sewing or the like, so that the above-mentioned gap 62 is not formed.

[0039] Furthermore, although this embodiment describes an example in which the portion of the seat back body 28 to which the retractor 22 is fixed is covered by the second covering portion 56, the present invention is not limited to this. The portion of the rear side of the seat back body 28 that is covered by the second covering portion 56 can be appropriately set considering whether or not the seat back body 28 is provided with a retractor 22, etc.

[0040] Although one embodiment of the present invention has been described above, it goes without saying that the present invention is not limited to the above, and can be implemented in various other ways without departing from the spirit of the invention. [Explanation of symbols]

[0041] 10 Vehicle seats 22 Retractor 28 Seat back body 30 Seat Trim 34. Bending section 54 First covering section 56 Second covering section 56A Recess 58 Third covering section 62 gaps

Claims

1. The seatback body supports the back of the seated occupant, and the middle section in the vertical direction of the seat is a bent section that bends in the front-to-back direction of the seat, A seat trim comprising: a first covering portion formed from a stretchable fabric-like material and covering a portion of the rear side of the seat back body and a portion of the bent portion from the rear of the seat, and stretching when the bent portion is bent; a second covering portion formed from a fabric-like material with less elasticity than the first covering portion and joined to the first covering portion, and covering from the rear of the seat the portion of the rear side of the seat back body that protrudes further to the rear of the seat than the portion covered by the first covering portion when bent, thereby suppressing the occurrence of unevenness; and a third covering portion formed from a fabric-like material with less elasticity than the first covering portion and covering the first covering portion and the second covering portion from the rear of the seat, A vehicle seat equipped with [a specific feature / feature].

2. A retractor is fixed to the seatback body, which winds up the seat belt worn by the seated occupant. The vehicle seat according to claim 1, wherein the second covering portion covers the portion of the seat back body to which the retractor is fixed.

3. The vehicle seat according to claim 2, wherein when the third covering portion is pulled toward the rear of the seat, a gap is formed between the first covering portion, the second covering portion and the third covering portion, allowing the second covering portion to be seen.

4. The vehicle seat according to claim 2, wherein the second covering portion has a recess formed therein in which a part of the retractor can be positioned.

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