JP5256861B2 - Vehicle seat assembly structure - Google Patents

Description

  The present invention relates to a member assembly structure for a vehicle seat, and more particularly to a structure for assembling a pad member and a skin material to a frame of a vehicle seat.

As this kind of member assembly structure, a structure in which a support panel is attached to a frame of a vehicle seat and then an outer cushion material is assembled to the support panel is known (see Patent Document 1). This outer cushion material is a member in which a pad member and an outer skin material are integrated, and is constituted by an outer skin material forming a sheet design surface and a pad member fixed to the rear surface of the outer skin material.
In the known technology, the first outer cushion material (seat portion) constituting the seating position of the occupant and the second outer cushion material (side support portion) constituting the side of the seating position are bonded to the corresponding portions of the support panel. Fix it. If it carries out like this, a pad member and a skin material can be assembled | attached simultaneously, and the assembly | attachment operation | work can be simplified compared with the case where it assembles for every member.
JP 2003-118435 A

By the way, it is desirable that the vehicle seat has a structure that can be detachably assembled with a pad member or a skin material and appropriately exchanged with another pad member or the like from the viewpoint of improving seating property and design. However, in the above known technique, since the outer cushion material is bonded and fixed to the support panel, it is a configuration in which the member cannot be easily removed (configuration not suitable for attaching / detaching the member).
However, it is also possible to detach the support panel directly and detachably attach the outer cushion material to the frame. However, the rear surface of the outer cushion material (the pad material on the rear surface of the outer skin material) becomes completely visible on the rear side of the seat, and the appearance of the seat is improved. Extremely worse.
The present invention has been devised in view of the above-described points, and the problem to be solved by the present invention is to assemble the members of the vehicle seat so as to be more detachable and detachable.

As means for solving the above problems, the member assembly structure according to the first aspect of the present invention is that a pad member and a skin material are assembled to a frame of a vehicle seat, and a seating portion serving as a seating position for an occupant is provided. It is the structure which forms the side support part located in this.
In this type of configuration, it is desirable to detachably attach each member with good appearance. Therefore, in the present invention, the above-described skin material is configured as a single piece corresponding to the outer shape of the sheet. Then, a seat portion and a side support portion are formed by double weaving on the single skin material, and the side support portion is foldable, and a folded base end is formed by single weaving. Then, the pad member is housed in each of the seating portion and the side support portion (both are double woven) so that the pad member and the skin material are integrated with good appearance.

And a seating part is arrange | positioned in the seating position of a vehicle seat, and the hook member of a seating part edge part is latched on the 1st frame so that attachment or detachment is possible. Then, after the side support portion is folded back to the seating portion, it is folded back to the seat back side different from the seating side, and the hook member at the end of the side support portion is detachably hooked to the second frame. It was.
As described above, in the present invention, the structure in which the pad member is hooked in the folded shape (relatively simple structure) is attached to the frame of the vehicle seat in a detachable manner with good appearance. Can do.

The member assembling structure of a vehicle seat of the first invention, at least one of the seating section of the upper predicate and side support portion, and the first pad member, and layered flexible second pad member than the first pad member Store.
Even when either the first pad member or the second pad member is arranged on the seating side, the seating portion and the side support portion can be hooked on each frame (a configuration that can be used on either the front or back side).

According to the member assembly structure of the vehicle seat of the first aspect of the present invention, the member of the vehicle seat can be assembled in a detachable manner with better appearance. Moreover, according to the member assembling structure of the first invention, it is possible to obtain a more convenient sheet configuration.

The best mode for carrying out the present invention will be described below with reference to FIGS. In each figure, reference numeral F is attached to the front of the vehicle seat, reference numeral B to the rear of the vehicle seat, reference UP to the upper side of the vehicle seat, and reference numeral DW to the lower side of the vehicle seat.
The vehicle seat 2 in FIG. 1 includes a seat cushion 4 and a seat back 6, and each of these components is covered with a skin material (4S, 6S).
1 and 2, the seat back 6 is configured by detachably assembling a pad member 6P and a skin material 6S, which will be described later. Therefore, in this embodiment, the member assembly structure according to this embodiment will be described using the seat back 6 as an example.

[Seatback]
The seat back 6 of the present embodiment has a configuration in which a pad member 6P and a skin material 6S, which will be described later, are assembled to the frame 10 forming the seat skeleton.
This frame frame 10 (a frame body having a substantially rectangular shape when viewed from the front) has a substantially inverted U-shaped pipe frame 12 forming an upper skeleton and a pair of side frames 14 and 14 forming a side skeleton. And a lower plate 16 forming a lower skeleton. A portion surrounded by the frame 10 is a seating position for the occupant.
A reclining shaft 18 is attached in a bridging manner below the pair of side frames 14, 14, and an end portion thereof protrudes from the side frame 14. The seat back 6 is supported by the reclining device R (disc shape) fitted on the end of the reclining shaft 18 so as to be relatively rotatable with respect to the seat cushion 4.

(First frame and second frame)
In this embodiment, a frame for hooking the pad member 6P and the skin material 6S is provided on the back side (sheet back side) of the frame frame 10. That is, in this embodiment, first, a pair of left and right second frames 20r and 20s (columnar wire rods) are arranged in parallel on the left and right sides of the seat. Then, the upper end of the second frame 20r (20s) is fixed to the pipe frame 12, and the lower end of the second frame 20r (20s) is fixed to the lower plate 16.
A pair of upper and lower first frames 22u and 22d (columnar wire rods) are arranged in parallel above and below the seat so as to straddle the pair of second frames 20r and 20s. Then, both ends of the first frame 22u on the upper side are fixed to the lower part of the pipe frame 12 in a bridging manner, and both ends of the first frame 22d on the lower side are fixed to the pair of side frames 14 and 14 in a bridging manner.
In this embodiment, the pad member 6P and the skin material 6S are detachably latched and assembled to each of these frames without deteriorating the appearance of the vehicle seat 2 as much as possible.

[Component assembly structure]
3 and 4, the member assembly structure of the present embodiment includes a skin material 6S, a pad member 6P, and hook members (32F, 34F, 48F) for hooking these members on the above-described frames. .
Then, by assembling the pad member 6P and the skin material 6S to each frame, a seating portion 30 that forms a seating position for the occupant and a pair of side support portions 40, 40 (bulging shape) located on the side of the seating portion 30 are formed. It is the structure to do. Hereinafter, each component will be described in detail.

(Skin material)
The skin material 6S is configured as a single piece of fabric corresponding to the outer shape of the sheet. The planar shape of the skin material 6S of the present embodiment is a shape (development view shape) in which the three-dimensional shapes of the front portion and both side portions of the vehicle seat 2 are developed on a plane with reference to FIG. This skin material 6S is configured by double weaving (bag weaving or air weaving), and a double weaving portion composed of two weaving structures and a single weaving portion composed of one weaving structure. Have
In the skin material 6S of the present embodiment, a central portion (a seat portion 30 described later) forming a seating position and both side portions (a side support portion 40 described later) formed so as to protrude from the side of the seating position are double woven. It is formed by.

(Sitting part)
And the seating part 30 is a site | part which makes a passenger | crew's seating position, and is formed in the skin material 6S center part (refer FIG. 3). The seat portion 30 of the present embodiment has a vertically long rectangular shape, and the lower portion thereof is slightly tapered. And this seat part 30 is comprised by the double woven part of the center, and the single woven part around the edge, and is the structure which can accommodate the below-mentioned pad member 6P in the bag shape inside.
An upper belt portion 32 and a lower belt portion 34 are provided at the upper and lower ends of the seating portion 30. Each of the upper belt portion 32 and the lower belt portion 34 is a belt-like portion that is long in the sheet width direction, and the center thereof is constituted by double weaving. A hook member to be described later is attached to each end portion (double woven portion) of the upper belt portion 32 and the lower belt portion 34 (see FIG. 4).

(Pad member)
2 and 3, the pad member 6P is accommodated in the seat portion 30. In this embodiment, the first pad member 61 and the second pad member 62 that is more flexible than the first pad member 61 are accommodated (see FIG. 2). The first pad member 61 is made of a typical flexible urethane foam for vehicles (for example, a flexible urethane foam having a density of 30 kg / m ^{3 to} 70 kg / m ³ and a rebound resilience of 40% to 65%). The second pad member 62 is made of a soft urethane foam (for example, a flexible urethane foam having a density of 20 kg / m ^{3 to} 35 kg / m ³ and a rebound resilience of 40% to 55%) that is softer than the first pad member 61. Yes. The physical properties of these flexible urethane foams can be measured by the “JIS K 6401 soft urethane foam test for cushions”.
Then, a slit is made in the above-described seat portion 30 (double woven portion), and after the first pad member 61 and the second pad member 62 are stored in a multilayered state, the slit is stitched. By doing so, the seat member 30 (double woven portion) covers the entire pad member 6P (61, 62), and both members can be integrated with good appearance. In the above-described configuration, the pad member 6P can be accommodated in the skin material 6S simply by stitching the slit, so that the sewing work is simplified and the assembly work time is shortened.

(Hook member)
Then, referring to FIG. 4, resin hook members (upper hook member 32F and lower hook member 34F) are attached to the upper belt portion 32 and the lower belt portion 34, respectively.
Each of the hook members 32F and 34F is a flat plate member (Y-shaped in a side view) elongated in the sheet width direction, and a pair of locking pieces face each other on the inner surface of one end (U-shape) of the hook member. It is protruding.
The upper hook member 32F (flat plate portion) is inserted into the double woven portion at the end of the upper band portion 32 and sewn to the upper band portion 32. The lower hook member 34F (flat plate portion) having the same shape is inserted into the double woven portion at the end of the lower belt portion 34 and sewn to the lower belt portion 34.

(Side support part)
The pair of side support portions 40 and 40 are portions that support both sides of the occupant, and are formed to be symmetrical on both sides of the seating portion 30 (see FIGS. 2 and 3).
The pair of side support portions 40, 40 of the present embodiment are respectively a first side support portion 44 (substantially triangular shape in front view), a second side support portion 48 (vertically long rectangular shape), and for folding them back. A folded base end (first hinge part 42, second hinge part 46) is provided.

The center of the first side support portion 44 (triangular shape) is a double woven portion, and the third pad member 63 (substantially triangular shape when viewed from the front) is housed in the bag shape.
The first side support portion 44 is connected to the seating portion 30 at one end thereof, and the other end side is formed in a triangular shape (a convex shape on the side). In other words, the other end side (triangular shape) of the first side support portion 44 has a first inclined side portion 44 a from the apex to the lower band portion 34 and a second inclined side portion 44 b from the apex to the upper band portion 32. And it connects with the below-mentioned 2nd side support part 48 by this 2nd inclination side part 44b.

And the 2nd side support part 48 (substantially vertically long rectangular shape) is connected with the above-mentioned 1st side support part 44 in the downward inclined form at the one end side. The second side support part 48 has a substantially inverted U-shaped double woven part when viewed from the front, and a fourth pad member 64 is provided on the double woven part near the first side support part 44 (one end side). (Generally triangular when viewed from the front) is stored.
A side hook member 48F (made of resin) is attached to the other end (48E) side with reference to FIG. The side hook member 48F is a flat plate member (Y-shaped when viewed from the side) that is long in the seat vertical direction, and a pair of locking pieces project from the inner surface of one end (U-shape) of the hook member. doing. Then, the side hook member 48F (flat plate portion) is inserted into the double woven portion at the other end (48E) of the second side support portion 48 and sewn to the second side support portion 48.

Further, the lower portion of the second side support portion 48 has a substantially circular double woven portion, and a bearing disc 50 (disc-like resin member) is accommodated in the bag-like interior (see FIGS. 3 and 4). reference).
When the side support portion 40 is assembled to the frame frame 10, the side support portion 40 is attached to the frame frame 10 by inserting the reclining shaft 18 protruding from the side frame 14 into the insertion hole 52 in the center of the bearing board 50. Position it.

(Folding base)
And the side support part 40 is the structure which can be folded back with respect to the above-mentioned seat part 30 in the bulging shape. That is, in the present embodiment, the connecting portion of the side support portion 40 is a single woven folded base end (first hinge portion 42, second hinge portion 46).
More specifically, a first hinge portion 42 configured by a single weave is formed at a connecting portion between the first side support portion 44 and the seating portion 30. The first hinge portion 42 can fold the side support portion 40 toward the seat front side (in a bulging shape) with respect to the seating portion 30.
Further, a second hinge portion 46 configured by a single weave is formed at a connecting portion between the first side support portion 44 and the second side support portion 48. The second hinge portion 46 allows the first side support portion 44 to be folded back to the back side of the seat with respect to the second side support portion 48 (the side support portion 40 can be folded halfway).

(Component assembly work)
4 and 5, after the seat portion 30 is arranged at the center of the frame 10, the upper band portion 32 is folded around the pipe frame 12. Then, the upper hook member 32F of the upper belt portion 32 is detachably hooked on the first frame 22u. Further, after the lower belt portion 34 is led from the connecting portion (gap) to the seat cushion 4 to the back side of the seat and folded around the lower plate 16, the lower hook member 34F of the lower belt portion 34 is attached to and detached from the first frame 22d. Hang freely. In this way, the seating portion 30 is disposed at the seating position of the vehicle seat 2, and the hook member 32F (34F) of the upper belt portion 32 (lower belt portion 34) is detachably assembled to the first frame 22u (22d). .

Next, the first side support portion 44 is folded back with respect to the seating portion 30 at the first hinge portion 42 (see FIG. 2). Then, the second side support portion 48 is folded back to the back side of the seat at the second hinge portion 46, whereby the side support portion 40 is disposed around the side frame 14 in a wound shape. At this time, the reclining shaft 18 is inserted into the bearing disc 50 of the second side support portion 48 and positioned. And the side hook member 48F of the edge part (48E) of the 2nd side support part 48 is latched on the 2nd flame | frame 20r (20s) so that attachment or detachment is possible.
After the side support portion 40 is folded back to the seating side in this way, it is folded back (in the second hinge portion 46) to the back side of the seat, and the side hook member 48F at the end thereof is connected to the second frame 20r ( 20s) is detachably assembled.

As described above, according to the present embodiment, the two members can be attached to and detached from the frame of the vehicle seat 2 by the configuration (relatively simple configuration) in which the pad member 6P is hooked with the housing material 6S stored in the folded shape. Can be assembled to.
In the present embodiment, since the pad member 6P such as the seating portion 30 is housed in the skin material 6S, the pad member 6P is formed by the skin material 6S on both the seat surface (seat side) and the seat back surface. It will be in the state covered (refer FIG. 5). For this reason, it can be set as the good-looking sheet structure which pad member 6P does not expose in any of the sheet | seat front side and a sheet | seat back side.
Then, by adopting a configuration in which the pad member 6P is housed in the skin material 6S (a configuration in which a gap is not easily formed between these members), the seat back 6 is slim in appearance, and a more attractive seat configuration can be obtained.

In this embodiment, even when either the first pad member 61 or the second pad member 62 is arranged on the seating side, the seating portion 30 and the side support portion 40 can be hooked on each frame (both front and back). Usable configuration).
That is, the single woven portion (the first hinge portion 42 and the second hinge portion 46) of the skin material 6S can be folded back in either the front or back direction. Further, after turning the skin material 6S upside down, the hook members (32F, 34F, 48F) provided on the seating portion 30 and the side support portion 40 can be fitted and latched on the corresponding frames.
For this reason, according to the member assembly structure of the present embodiment, the first pad member 61 can be used in the front state of FIG. 2 facing the seating side. Further, by appropriately turning the skin material 6S upside down, the second pad member 62 can be used even in the back state facing the seating side, so that the seat configuration is more convenient.
At this time, if the seating portion 30 and the side support portion 40 are colored differently on the front and back sides, the first pad member 61 and the second pad member 62 can be accommodated as much as possible. Further, it can be determined at a glance whether the pad member on the front or back surface is flexible, and the design can be further improved.

The member assembly structure of the vehicle seat according to the present embodiment is not limited to the above-described example, and may take other various embodiments.
(1) In this embodiment, the member assembly structure of the seat back 6 has been described exclusively. The member assembly structure of the present embodiment is a technique applicable to various configurations of the vehicle seat 2 including the seat cushion 4.
(2) In the present embodiment, the configuration in which the skin material 6S and the pad member 6P are hung on the first frame 22u (22d) or the second frame 20r (20s) has been described. The hook portions of the hook members may be other frames of the vehicle seat 2 (for example, the pipe frame 12 and the side frame 14) as long as they can be hooked.

(3) Further, the outer shape (development shape) of the skin material 6S of the present embodiment can be appropriately changed depending on the outer shape of the vehicle seat 2 to be assembled. For example, in the vehicle seat 2 including a headrest, a cutout portion that avoids interference with the headrest may be provided in the upper belt portion 32 described above. In addition, the shape of the pad member can be changed as appropriate in accordance with the developed shape of the skin material.
In the present embodiment, the skin material 6S is constituted by a single piece of woven fabric (single stitch weave structure), but may be constituted as a single piece formed by sewing a plurality of skin pieces.

(4) In this embodiment, a substantially Y-shaped hook member is used as a hook member that holds the seat portion 30 and the side support portion 40. The hook member may have various shapes that can be hooked to the frame, such as a hook shape (arrow shape), a J shape, a U shape, and an arrowhead shape. Preferably, it is a hook member having a symmetrical shape such as a Y-shape or a bowl shape.
In this embodiment, a hook member that is long in the sheet width direction (sheet up-down direction) is used, but a plurality of short hook members can also be used.

(5) Further, in the present embodiment, the configuration in which the first pad member 61 and the second pad member 62 are stacked and stored in the seat portion 30 (a configuration that is easy to use) has been described. Unlike this, a simple configuration in which either the first pad member 61 or the second pad member 62 is accommodated in the seating portion 30 may be adopted. The side support parts 40 in this case, it housed overlaid with the first pad member 61 and the second pad member 62. In the present embodiment, the first pad member 61 and the second pad member 62 are made of the same material, but may be made of different materials.
In the present embodiment, the configuration in which the first pad member 61 and the second pad member 62 are directly overlaid (the most rational two-layer structure) has been described, but another member (for example, another pad member or (Resin plate) can be inserted.

(6) Further, in this embodiment, the physical properties of the third pad member 63 and the fourth pad member 64 are not particularly limited, but these are the same physical properties (for example, one of the first pad member 61 and the second pad member 62). It may be the same physical property as one). The third pad member 63 and the fourth pad member 64 may have different physical properties. For example, the third pad member 63 has the same physical property as one of the first pad member 61 and the second pad member 62, and the fourth pad member 64 has the same physical property as the other one different from the one.
Further, the first pad member to the fourth pad member may be made of a soft urethane foam having different physical properties, or may be made of a material different from the soft urethane foam.

(7) In the present embodiment, the side support unit 40 configured by the first side support unit 44 and the second side support unit 48 (two parts) has been described, but the configuration of the side support unit is not intended to be limited. For example, the side support part 40 may be composed of three or more parts. Further, the number and shape of the folded base end (single woven portion) can be appropriately changed according to the configuration of the side support portion described above.
(8) Moreover, the shape of the seating part 30 of the present embodiment is an example. That is, the shape of the seating portion 30 can be appropriately changed according to the shape of the seating position of the vehicle seat.

It is a partial perspective view of a vehicle seat. It is the II-II line transverse cross section of FIG. (A) is a front view of a skin material, (b) is a bb line cross-sectional view of (a). It is a partially exploded perspective view of a vehicle seat showing a member assembling step. It is a back perspective view of a vehicle seat.

2 Vehicle seat 4 Seat cushion 6 Seat back 6P Pad member 6S Skin material 10 Frame frame 18 Reclining shaft 20r, 20s First frame 22u, 22d Second frame 30 Seating portion 32 Upper belt portion 32F Upper hook member 34 Lower belt portion 34F Lower hook member 40 Side support portion 42 First hinge portion 44 First side support portion 46 Second hinge portion 48 Second side support portion 48F Side hook member 50 Bearing disc 61 First pad member 62 Second pad member 63 Third pad member 64 Fourth pad member

Claims (1)

In the member assembly structure of a vehicle seat that assembles a pad member and a skin material on a frame of a vehicle seat, and forms a seating portion that becomes a seating position of an occupant and a side support portion that is positioned on the side of the seating portion,
The skin material is configured as a single piece corresponding to the outer shape of the seat, and the seating portion and the side support portion are formed by double weaving, and the side support portion is foldable, and the folded base end is single. Formed by weaving,
While storing the pad member in each of the seating portion and the side support portion,
The seating portion is disposed at a seating position of the vehicle seat, and the hook member at the end of the seating portion is detachably hooked on the first frame, and the side support portion is bulged with respect to the seating portion. After folding back, it is folded back to the back side of the seat different from the seating side, and the hook member at the end of the side support part is configured to be detachably hooked to the second frame ,
The first pad member and a second pad member that is more flexible than the first pad member are stacked and stored in at least one of the seating portion and the side support portion, and
The vehicle seat member set according to the configuration in which the seating portion and the side support portion can be hooked to the frames even when either the first pad member or the second pad member is disposed on the seating side. Attached structure.

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