Vehicle seat

The vehicle seat design with gap-concealing and bending suppression members addresses the issues of appearance deterioration and foreign matter accumulation by using less deformable materials to maintain the seat's appearance and cleanliness.

JP2025136354APending Publication Date: 2025-09-19NHK SPRING CO LTD
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Patent Information

Application Number
JP2024034868
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-03-07
Publication Date
2025-09-19

AI Technical Summary

Technical Problem

Existing vehicle seats with bellows-shaped members between movable and seat cushion parts suffer from appearance deterioration and foreign matter accumulation due to bending and folding.

Method used

A vehicle seat design featuring a gap-concealing member composed of first and second gap-concealing members, along with bending suppression members, which are less prone to deformation, to prevent bending and foreign matter accumulation between the movable and seat cushion parts.

Benefits of technology

Prevents seat cushion appearance deterioration and foreign matter accumulation by effectively suppressing bending of the gap-concealing members, ensuring a clean and aesthetically pleasing appearance.

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Abstract

To provide a vehicle seat capable of suppressing worsening of an appearance of a seat cushion and suppressing deposition of a foreign object between a movable part and a seat cushion body.SOLUTION: A vehicle seat 10 comprises: a seat cushion body 16; a movable part 18; and a gap hiding member 22 placed between the movable part 18 and the seat cushion body 16. The gap hiding member 22 includes a first gap hiding member 24 connected to the seat cushion body 16, and a second gap hiding member 26 connected to the movable part 18 and connected at the side opposite to the movable part 18 to the first gap hiding member 24. The gap hiding member 22 includes folding suppression members 28 and 30 provided along the surface 24A of the first gap hiding member 24 opposite to a seated occupant and the surface 26A of the second gap hiding member 26 opposite to the seated occupant.SELECTED DRAWING: Figure 2
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Description

[Technical Field]

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

[0002] The following Patent Document 1 discloses a vehicle seat equipped with a cushion length adjusting mechanism that displaces a movable portion (cushion edge portion) provided at the front of the seat cushion in the front-rear direction relative to the seat cushion main body (cushion main sitting portion). The vehicle seat described in this document is provided with a bellows-like member to hide the gap between the movable portion and the seat cushion main body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 2-48438 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in a configuration in which a bellows-shaped member is provided between the movable part and the seat cushion main body, as in the vehicle seat described in Patent Document 1 above, it is possible that the appearance of the seat cushion will be deteriorated and foreign matter will accumulate in the folds of the bellows-shaped member.

[0005] In consideration of the above facts, the present invention aims to provide a vehicle seat that can prevent the appearance of the seat cushion from deteriorating and can prevent foreign matter from accumulating between the movable part and the seat cushion main body. [Means for solving the problem]

[0006] The vehicle seat of the first aspect comprises a seat cushion main body that forms part of the seat cushion that supports the buttocks of a seated occupant from the underside of the seat; a movable part that forms another part of the seat cushion and is arranged on the front side of the seat relative to the seat cushion main body and is displaceable in the fore-and-aft direction of the seat relative to the seat cushion main body; and a gap-concealing member that extends in the fore-and-aft direction of the seat and in the seat width direction and is hung between the movable part and the seat cushion main body, wherein the gap-concealing member includes a first gap-concealing member connected to the seat cushion main body, a second gap-concealing member that is connected to the movable part and has its side opposite the movable part connected to the first gap-concealing member, and a bending-suppressing member that is arranged along the surface of the first gap-concealing member opposite the seated occupant and the surface of the second gap-concealing member opposite the seated occupant, thereby suppressing bending of the first gap-concealing member and the second gap-concealing member.

[0007] In a first aspect of the vehicle seat, the movable portion displaces relative to the seat cushion main body in the seat front-rear direction. This allows the size of the seat cushion in the seat front-rear direction to be adjusted. A gap-concealing member extending in the seat front-rear direction and the seat width direction is suspended between the movable portion and the seat cushion main body. The gap-concealing member includes a first gap-concealing member, a second gap-concealing member, and a bending suppression member. The first gap-concealing member is connected to the seat cushion main body. The second gap-concealing member is connected to the movable portion and is connected to the first gap-concealing member on the side opposite the movable portion. The bending suppression member is provided along the surface of the first gap-concealing member facing away from the seated occupant and the surface of the second gap-concealing member facing away from the seated occupant. This allows the bending suppression member to suppress bending of the first gap-concealing member and the second gap-concealing member. As a result, deterioration of the appearance of the seat cushion due to bending of the first gap-concealing member and the second gap-concealing member can be suppressed. Furthermore, it is possible to prevent foreign matter from accumulating at the bent portions of the first gap concealing member and the second gap concealing member between the movable portion and the seat cushion main body.

[0008] The vehicle seat of the second aspect is the vehicle seat of the first aspect, wherein the bending suppression member is formed using a material that is less likely to deform in its thickness direction than the first gap-hiding member and the second gap-hiding member.

[0009] In the vehicle seat of the second aspect, bending of the first gap-concealing member and the second gap-concealing member can be effectively suppressed compared to a configuration in which the bending suppression member is formed using a member that is more easily deformed in its thickness direction than the first gap-concealing member and the second gap-concealing member.

[0010] The vehicle seat of the third aspect is the vehicle seat of the first aspect, wherein one end of the bending suppression member is arranged along the seat width direction at the middle part of the first gap-concealing member in the seat fore-and-aft direction, and the other end of the bending suppression member is arranged along the seat width direction at the middle part of the second gap-concealing member in the seat fore-and-aft direction.

[0011] In the vehicle seat of the third aspect, one end of the bending suppression member is arranged along the seat width direction at a middle portion of the first gap-concealing member in the seat front-rear direction. This makes it possible to suppress bending at the middle portion of the first gap-concealing member in the front-rear direction, compared to a configuration in which one end of the bending suppression member is not arranged along the seat width direction at a middle portion of the first gap-concealing member in the seat front-rear direction. Furthermore, the other end of the bending suppression member is arranged along the seat width direction at a middle portion of the second gap-concealing member in the seat front-rear direction. This makes it possible to suppress bending at the middle portion of the second gap-concealing member in the front-rear direction, compared to a configuration in which the other end of the bending suppression member is not arranged along the seat width direction at a middle portion of the second gap-concealing member in the seat front-rear direction. [Effects of the Invention]

[0012] The vehicle seat of the present invention has the excellent effect of preventing the appearance of the seat cushion from being deteriorated and preventing foreign matter from accumulating between the movable part and the seat cushion main body. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a side view schematically showing a vehicle seat according to an embodiment of the present invention; [Figure 2] FIG. 4 is a side view of the gap covering member as viewed from the seat width direction. [Figure 3] FIG. 4 is a plan view of the gap covering member as seen from above the seat. [Figure 4] FIG. 10 is a bottom view of the gap concealing member as seen from the seat lower side. DETAILED DESCRIPTION OF THE INVENTION

[0014] A vehicle seat 10 according to an embodiment of the present invention will be described with reference to Figures 1 to 4. 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. Furthermore, 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 front-rear direction of the seat, up-down in the seat up-down direction, and left-right in the seat width direction.

[0015] As shown in FIG. 1, 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.

[0016] The seat cushion 12 is configured to include a seat cushion main body 16, a movable part 18 arranged forward of the seat cushion main body 16, and a seat cushion length varying mechanism 20 that displaces the movable part 18 in the front-rear direction relative to the seat cushion main body 16. The seat cushion 12 also includes a gap concealing member 22 that extends in the front-rear and left-right directions and is hung between the rear end of the movable part 18 and the front end of the seat cushion main body 16.

[0017] As shown in FIGS. 2, 3, and 4, the gap concealing member 22 includes a first gap concealing member 24, a second gap concealing member 26, and a pair of bending suppression members 28, 30.

[0018] The first gap concealing member 24 is formed using a sheet-like material such as cloth, leather, synthetic leather, or the like, and is formed in a rectangular shape with the longitudinal direction extending in the left-right direction. A rear end 24R of this first gap concealing member 24 is connected to the front end of the seat cushion main body 16. The rear end 24R of the first gap concealing member 24 and the front end of the seat cushion main body 16 (a trim that forms the surface of the seat cushion main body 16) may be fixed together by sewing along the left-right direction, or by some other method.

[0019] Like the first gap concealing member 24, the second gap concealing member 26 is formed using a sheet-like material such as cloth, leather, or synthetic leather, and is formed in a rectangular shape with the longitudinal direction extending in the left-right direction. A front end 26F of the second gap concealing member 26 is connected to the rear end of the movable part 18. The front end 26F of the second gap concealing member 26 and the rear end of the movable part 18 (the trim that forms the surface of the movable part 18) may be fixed by sewing along the left-right direction, or may be fixed by other methods. An end of the second gap concealing member 26 opposite the movable part 18 (rear end 26R) and an end of the first gap concealing member 24 opposite the seat cushion main body 16 (front end 24F) are fixed by sewing along the left-right direction in an overlapping state with the seam allowance 32 positioned below.

[0020] The one bending suppression member 28 is formed using a material that is less likely to deform in its thickness direction than the first gap concealing member 24 and the second gap concealing member 26. As an example, the one bending suppression member 28 is formed using a sheet-like mat material and is formed in a rectangular shape with the left-right direction as the longitudinal direction. The left-right dimension A1 of the one bending suppression member 28 is set to be smaller than the left-right dimension B1 of the first gap concealing member 24. Furthermore, the front-to-rear dimension of the one bending suppression member 28 in a state in which the one bending suppression member 28 is unfolded in the front-to-rear direction is set to be smaller than the front-to-rear dimension of the first gap concealing member 24 in a state in which the first gap concealing member 24 is unfolded in the front-to-rear direction. The one bending suppression member 28 is arranged along a surface 24A of the first gap concealing member 24 on the side opposite to the seated occupant. Furthermore, the front end 28F of one of the bending suppression members 28 and the front end 24F of the first gap concealing member 24 are overlapped and fixed by stitching along the left-right direction. When the front end 28F of one of the bending suppression members 28 and the front end 24F of the first gap concealing member 24 are fixed together, the rear end 28R of one of the bending suppression members 28 is disposed along the seat width direction in close proximity to the middle portion of the first gap concealing member 24 in the front-to-rear direction. In this embodiment, the left-to-right ends of one of the bending suppression members 28 and the first gap concealing member 24 do not overlap each other.

[0021] The other bend suppression member 30 has a configuration similar to that of the one bend suppression member 28. That is, the other bend suppression member 30 is formed using a sheet-like mat material and is formed in a rectangular shape with the left-right direction as the longitudinal direction. The left-right dimension A2 of the other bend suppression member 30 is set to be smaller than the left-right dimension B2 of the second gap concealing member 26. Furthermore, the front-rear dimension of the other bend suppression member 30 in a state in which the other bend suppression member 30 is unfolded in the front-rear direction is set to be smaller than the front-rear dimension of the second gap concealing member 26 in a state in which the second gap concealing member 26 is unfolded in the front-rear direction. The other bend suppression member 30 is disposed along the surface 26A of the second gap concealing member 26 on the side opposite to the seated occupant. Furthermore, the rear end 30R of the other bend suppression member 30 and the rear end 26R of the second gap concealing member 26 are overlapped and fixed by stitching along the left-right direction. When the rear end 30R of the other bend suppression member 30 and the rear end 26R of the second gap concealing member 26 are fixed, the front end 30F of the other bend suppression member 30 is disposed along the seat width direction in close proximity to the front-to-rear middle portion of the second gap concealing member 26. In this embodiment, the other bend suppression member 30 and both left-to-right end portions of the second gap concealing member 26 do not overlap each other.

[0022] (Actions and Effects of This Embodiment) Next, the operation and effects of this embodiment will be described.

[0023] As shown in Figures 1, 2, 3, and 4, in the vehicle seat 10 of this embodiment, when the seat cushion length adjusting mechanism 20 is activated, the movable part 18 is displaced in the front-rear direction relative to the seat cushion main body 16. This allows the dimension of the seat cushion 12 in the front-rear direction to be adjusted. In addition, a gap concealing member 22 extending in the front-rear direction and the seat width direction is suspended between the movable part 18 and the seat cushion main body 16. As a result, the gap 34 between the movable part 18 and the seat cushion main body 16 is covered by the gap concealing member 22. Note that as the movable part 18 is displaced forward relative to the seat cushion main body 16, the gap concealing member 22 is gradually extended in the front-rear direction. Conversely, as the movable part 18 is displaced rearward relative to the seat cushion main body 16, the gap concealing member 22 is gradually folded at the joint between the first gap concealing member 24 and the second gap concealing member 26.

[0024] Here, in the gap concealing member 22 of this embodiment, one bending suppression member 28 is provided along the surface 24A of the first gap concealing member 24 opposite to the seated occupant, and the other bending suppression member 30 is provided along the surface of the second gap concealing member 26 opposite to the seated occupant. This makes it possible to suppress bending of the first gap concealing member 24 and the second gap concealing member 26 by the pair of bending suppression members 28, 30. As a result, it is possible to prevent deterioration of the appearance of the seat cushion 12 due to bending of the first gap concealing member 24 and the second gap concealing member 26. In addition, it is possible to prevent foreign matter from accumulating at the bent portions of the first gap concealing member 24 and the second gap concealing member 26 between the movable part 18 and the seat cushion main body 16.

[0025] Furthermore, in this embodiment, the pair of bending suppression members 28, 30 are formed using a material that is less likely to deform in its thickness direction than the first gap concealing member 24 and the second gap concealing member 26. In this configuration, bending of the first gap concealing member 24 and the second gap concealing member 26 can be more effectively suppressed than in a configuration in which the pair of bending suppression members 28, 30 are formed using a material that is more likely to deform in its thickness direction than the first gap concealing member 24 and the second gap concealing member 26.

[0026] In addition, the rear end 28R of one of the bending suppression members 28 is disposed along the seat width direction in proximity to a front-to-rear middle portion of the first gap concealing member 24, and the front end 30F of the other bending suppression member 30 is disposed along the seat width direction in proximity to a front-to-rear middle portion of the second gap concealing member 26. With this configuration, the front-to-rear middle portions of the first gap concealing member 24 and the second gap concealing member 26, where bending is likely to occur, can be supported by the ends of the pair of bending suppression members 28, 30 (the rear end 28R of one of the bending suppression members 28 and the front end 30F of the other bending suppression member 30). This effectively prevents bending from occurring in the front-to-rear middle portions of the first gap concealing member 24 and the second gap concealing member 26.

[0027] Note that in the present embodiment, an example has been described in which the rear end 28R of one of the bending suppression members 28 is disposed along the seat width direction in proximity to a central portion of the first gap concealing member 24 in the front-rear direction, and the front end 30F of the other bending suppression member 30 is disposed along the seat width direction in proximity to a central portion of the second gap concealing member 26 in the front-rear direction, but the present invention is not limited to this. Whether or not to dispose the ends of the pair of bending suppression members 28, 30 (the rear end 28R of one bending suppression member 28 and the front end 30F of the other bending suppression member 30) as described above may be appropriately determined taking into consideration the ease of deformation of the first gap concealing member 24 and the second gap concealing member 26 in the thickness direction, etc.

[0028] Furthermore, in the present embodiment, an example has been described in which the pair of bending suppression members 28, 30 are formed using a material that is less likely to deform in its thickness direction than the first gap concealing member 24 and the second gap concealing member 26, but the present invention is not limited to this. The material that constitutes the pair of bending suppression members 28, 30 may be selected appropriately taking into consideration the ease with which the first gap concealing member 24 and the second gap concealing member 26 deform in their thickness direction, etc.

[0029] 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]

[0030] 10 Vehicle seats 12 seat cushions 16 Seat cushion body 18 Moving parts 22 Gap hiding material 24 First gap concealing member 26 Second gap concealing member 28 Bending suppression member 28R Rear end of bending suppression member (one end of bending suppression member) 30 Bending suppression member 30F Front end of bending suppression member (other end of bending suppression member)

Claims

1. a seat cushion main body that constitutes a part of the seat cushion that supports the buttocks of a seated occupant from below the seat; a movable portion that constitutes another part of the seat cushion, that is disposed on the front side of the seat with respect to the seat cushion main body, and that is displaceable in the front-rear direction of the seat with respect to the seat cushion main body; a gap concealing member extending in the seat front-rear direction and the seat width direction and spanning between the movable portion and the seat cushion main body; Equipped with The gap hiding member is a first gap-hiding member connected to the seat cushion main body; a second gap-hiding member connected to the movable portion and having an opposite side to the movable portion connected to the first gap-hiding member; a bending suppression member that is provided along a surface of the first gap-concealing member opposite to the seated occupant and a surface of the second gap-concealing member opposite to the seated occupant, thereby suppressing bending of the first gap-concealing member and the second gap-concealing member; A vehicle seat comprising:

2. The vehicle seat according to claim 1, wherein the bending suppression member is formed using a material that is less likely to deform in its thickness direction than the first gap concealing member and the second gap concealing member.

3. One end of the bending suppression member is arranged along the seat width direction at a middle portion of the first gap covering member in the seat front-rear direction, The vehicle seat according to claim 1 , wherein the other end of the bending suppression member is disposed along the seat width direction at a middle portion of the second gap covering member in the seat front-rear direction.

Citation Information

Patent Citations

  • JP1990048438U