Seat skin hanging structure, vehicle seat, and method for manufacturing hanging structure portion

Abstract

To provide a seat skin hanging structure capable of evenly hanging two skin pieces and ensuring the quality of appearance, a vehicle seat, and a method for manufacturing a hanging structure portion.SOLUTION: A hanging cloth 42 has a sandwiched portion 42S sandwiched between an end 28A of a first skin piece 28 and an end 30A of a second skin piece 30 and sewn together, and also has an extension portion 42E extending from the sandwiched portion 42S to the side opposite a seated occupant side. A hog ring attached to the extension portion 42E of the hanging cloth 42 is engaged with an insert wire 46 provided at the bottom of a hanging groove 24. The end 28A of the first skin piece 28 and the end 30A of the second skin piece 30 are sewn together at an occupant-side seam S3 in a portion closer to the seated occupant side than the sandwiched portion 42S of the hanging cloth 42.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a structure for suspending a seat skin, a vehicle seat, and a method for manufacturing a suspension structure portion.

Background Art

[0002] In a vehicle seat, a structure is known in which a seat skin is suspended in a suspension groove formed in a padding material. Further, in such a structure, there are cases where a suspension cloth material is sandwiched between the ends of two skin pieces constituting the seat skin and sewn together (see, for example, FIGS. 8 and 9 of Patent Document 1 below). In such a case, the two skin pieces can be evenly suspended by pulling the suspension cloth material to the bottom side of the suspension groove.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the above prior art, since the ends of the suspension cloth material disposed between the two skin pieces are visible from the seated occupant side, the appearance quality deteriorates.

[0005] In consideration of the above facts, an object of the present invention is to obtain a structure for suspending a seat skin, a vehicle seat, and a method for manufacturing a suspension structure portion that can evenly suspend two skin pieces and ensure appearance quality.

Means for Solving the Problems

[0006] The suspension structure of the seat skin of the first aspect constitutes a cushion material for a vehicle seat, in which a suspension groove is formed, and a pad material provided with a locked member at the bottom of the suspension groove, a seat skin covering the pad material, including a first skin piece and a second skin piece, wherein an end of the first skin piece and an end of the second skin piece are stitched and arranged in the suspension groove, a suspension cloth having a sandwiching portion sandwiched and double-stitched between the end of the first skin piece and the end of the second skin piece, and an extending portion extending from the sandwiching portion to the side opposite to the seating occupant side, and a locking member locked to the locked member is attached to the extending portion, and a passenger side stitching portion that stitches the end of the first skin piece and the end of the second skin piece at a portion closer to the seating occupant side than the sandwiching portion.

[0007] According to the suspension structure of the seat skin of the first aspect, the pad material constituting the cushion material of the vehicle seat has a suspension groove formed therein, and a locked member is provided at the bottom of the suspension groove. The seat skin covering the pad material is composed of a first skin piece and a second skin piece, and has a suspension portion in which an end of the first skin piece and an end of the second skin piece are stitched and arranged in the suspension groove. Further, the suspension cloth having a sandwiching portion sandwiched and double-stitched between the end of the first skin piece and the end of the second skin piece has a locking member attached to an extending portion extending from the sandwiching portion to the side opposite to the seating occupant side, and this locking member is locked to the locked member. Thereby, the first skin piece and the second skin piece can be evenly suspended.

[0008] Furthermore, the passenger side stitching portion stitches the end of the first skin piece and the end of the second skin piece at a portion closer to the seating occupant side than the sandwiching portion. Therefore, it is possible to prevent the end of the suspension cloth disposed between the end of the first skin piece and the end of the second skin piece from being visible from the seating occupant side, and the appearance quality can be ensured.

[0009] In the second aspect, the hanging structure of the seat skin is, in the first aspect, the hanging cloth is folded at the folded part which is the end on the seated occupant side between the end of the first skin piece and the end of the second skin piece, and one end is aligned with the tip of the end of the first skin piece and the tip of the end of the second skin piece. In the overlapping piece part which is the part from the one end to the boundary part with the folded part among the overlapping parts overlapped by folding in the hanging cloth, the boundary part with the folded part is sewn to the end of the first skin piece and the second skin piece which is in contact with the overlapping piece part by the first sewing part, and the second sewing part which sews the overlapping part of the hanging cloth to both the end of the first skin piece and the end of the second skin piece is provided.

[0010] According to the hanging structure of the seat skin of the second aspect, the hanging cloth is folded at the folded part which is the end on the seated occupant side between the end of the first skin piece and the end of the second skin piece, and one end is aligned with the tip of the end of the first skin piece and the tip of the end of the second skin piece. The first sewing part sews the boundary part with the folded part to the end of the first skin piece and the second skin piece which is in contact with the overlapping piece part in the overlapping piece part which is the part from the one end to the boundary part with the folded part among the overlapping parts overlapped by folding in the hanging cloth. Further, the second sewing part sews the overlapping part of the hanging cloth to both the end of the first skin piece and the end of the second skin piece. Here, when the first sewing part is sewn before the second sewing part during sewing and then the hanging cloth is folded at the folded part and then the second sewing part is sewn, it is easy to align the hanging cloth, and it is easy to adjust the extending length of the extending part in the hanging cloth to a desired length.

[0011] The vehicle seat of the third aspect includes a seat cushion that supports the buttocks and thighs of the seated occupant and a seat back that supports the back of the seated occupant, and at least one of the seat cushion and the seat back has the hanging structure of the seat skin of the first aspect or the second aspect.

[0012] According to the vehicle seat of the third aspect, the buttocks and thighs of the seated occupant are supported by the seat cushion, and the back of the seated occupant is supported by the seat back. Since at least one of the seat cushion and the seat back has the suspension structure of the first aspect or the second aspect, the above-described effects can be obtained.

[0013] The manufacturing method of the suspension structure part of the fourth aspect includes a seat skin having a suspension part in which an end of a first skin piece and an end of a second skin piece are sewn and arranged in a suspension groove, and a sandwiching part sandwiched between the end of the first skin piece and the end of the second skin piece and co-sewn and folded at a folded-back part which is an end on the seated occupant side, and a suspension cloth having an extending part extending from the sandwiching part to the side opposite to the seated occupant side. The manufacturing method of the suspension structure part having the above is as follows: In the suspension cloth, the part that becomes the sandwiching part is taken as the first part, the part that becomes the extending part is taken as the second part, the suspension cloth is overlapped on the end of the first skin piece with the terminal on the side opposite to the second part side in the first part aligned with the tip of the end of the first skin piece, and a first step of sewing the suspension cloth to the end of the first skin piece at a position where the first part is the starting point of folding; after the first step, after folding the suspension cloth at the part sewn in the first step, sandwiching the first part between the end of the first skin piece and the end of the second skin piece, and sewing the end of the first skin piece and the end of the second skin piece at a part on the seated occupant side from the position of the first part; after the second step, a third step of sewing the overlapping part overlapped by folding in the first part to the end of the first skin piece and the end of the second skin piece.

[0014] According to the manufacturing method of the suspension structure part of the fourth aspect, in the first step, with the terminal on the side opposite to the second part (the part that becomes the extending part) in the first part (the part that becomes the clamping part) of the suspension cloth aligned with the tip of the end of the first skin piece, the suspension cloth is overlapped on the end of the first skin piece, and sewn to the end of the first skin piece at the position where the first part is the starting point of folding back. Next, in the second step, after the first step, after folding back the suspension cloth at the part sewn in the first step, the first part is clamped between the end of the first skin piece and the end of the second skin piece, and the end of the first skin piece and the end of the second skin piece are sewn at the part on the seated passenger side rather than at the position of the first part. Thereby, after manufacturing, it is possible to prevent the end of the suspension cloth disposed between the end of the first skin piece and the end of the second skin piece from being visible from the seated passenger side. Next, in the third step, after the second step, the overlapping part overlapped by folding back in the first part is sewn to the end of the first skin piece and the end of the second skin piece. Thereby, the first skin piece and the second skin piece can be evenly suspended by the suspension cloth.

[0015] The manufacturing method of the suspension structure part of the fifth aspect is a seat skin including a suspension part in which an end of a first skin piece and an end of a second skin piece are stitched and arranged in a suspension groove, and a sandwiching part sandwiched between the end of the first skin piece and the end of the second skin piece and double-stitched and folded back at a folded-back part which is an end on the seated passenger side, and having an extending part extending from the sandwiching part to the side opposite to the seated passenger side. The manufacturing method of the suspension structure part having the suspension cloth includes, in the suspension cloth, a first part that becomes the sandwiching part and a second part that becomes the extending part. The manufacturing method includes: a first step of overlapping the end of the first skin piece and the end of the second skin piece and stitching the end of the first skin piece and the end of the second skin piece at a position a predetermined distance from their tip sides; a second step, after the first step, opening the end of the first skin piece and the end of the second skin piece in the separation direction from each other with the stitched part in the first step as a starting point, then overlapping the first part on the opened side surface of the end of the first skin piece and aligning the terminal on the side opposite to the second part side in the first part with the tip of the end of the first skin piece, and stitching the first part at a position where the first part is used as a starting point for folding back on the opened part of the end of the first skin piece; and a third step, after the second step, folding back the suspension cloth at the part stitched in the second step, sandwiching the first part between the end of the first skin piece and the end of the second skin piece, and stitching the overlapping part overlapped by folding back in the first part to the end of the first skin piece and the end of the second skin piece.

[0016] According to the manufacturing method of the suspension structure part of the fifth aspect, in the first step, the end of the first skin piece and the end of the second skin piece are overlapped, and the end of the first skin piece and the end of the second skin piece are sewn at a position a predetermined distance from their tip sides. In the second step after the first step, after the end of the first skin piece and the end of the second skin piece are opened in the direction of separation from each other starting from the sewn portion in the first step, the first part (the portion that becomes the sandwiching part) of the suspension cloth is overlapped on the opened side surface of the end of the first skin piece, and in a state where the terminal on the side opposite to the second part (the portion that becomes the extending part) in the first part is aligned with the tip of the end of the first skin piece, the first part is sewn at a position that is the starting point of folding back on the opened part of the end of the first skin piece. In the third step after the second step, the suspension cloth is folded back at the portion sewn in the second step, and the first part is sandwiched between the end of the first skin piece and the end of the second skin piece, and the overlapping part overlapped by folding back in the first part is sewn to the end of the first skin piece and the end of the second skin piece. As described above, it is possible to prevent the end of the suspension cloth disposed between the end of the first skin piece and the end of the second skin piece from being visible from the seated passenger side by the sewn portion in the first step, and it is possible to evenly suspend the first skin piece and the second skin piece by the suspension cloth.

Advantages of the Invention

[0017] As described above, according to the present invention, there is an excellent effect that two skin pieces (the first skin piece and the second skin piece) can be evenly suspended and the appearance quality can be ensured.

Brief Description of the Drawings

[0018]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5A

Figure 5B

Figure 6A

Figure 6B

Figure 7A

Figure 7B

Figure 8

Figure 9

Mode for Carrying Out the Invention

[0019] Hereinafter, with reference to Figs. 1 to 9, a vehicle seat 10 according to an embodiment of the present invention will be described. In each figure, some reference numerals may be omitted for the sake of easy viewing of the drawings. Also, the arrows FR, LH, and UP appropriately shown in each figure indicate the front, left, and upper directions of the vehicle seat 10, respectively. Hereinafter, when simply using the directions of front, rear, left, right, up, and down for explanation, it is assumed to indicate the directions with respect to the vehicle seat 10.

[0020] As shown in FIG. 1, the vehicle seat 10 according to the present embodiment is, for example, a front seat of a vehicle, and includes a seat cushion 12 that supports the buttocks and thighs of the seated occupant, a seat back 14 that supports the back of the seated occupant, and a headrest 16 that supports the head of the seated occupant. The seat cushion 12 is connected to the floor portion (not shown) of the vehicle via a well-known slide mechanism 18. The lower end portion of the seat back 14 is connected to the rear end portion of the seat cushion 12 via a well-known reclining mechanism 20. The headrest 16 is connected to the upper end portion of the seat back 14 so that its vertical position can be adjusted.

[0021] The seat cushion 12 includes a cushion frame (not shown), a cushion pad 22 which is a pad material supported by the cushion frame, and a cushion cover 26 which is a seat skin covering the cushion pad 22. The cushion frame is formed by joining, for example, press-molded metal plate materials or metal pipe materials, and constitutes the framework of the seat cushion 12. The cushion pad 22 is constituted by a foam such as urethane foam, for example, and constitutes the cushion material of the seat cushion 12. The cushion cover 26 is formed in a bag shape by sewing a plurality of skin pieces made of, for example, cloth material, leather or synthetic leather, and is covered over the cushion pad 22 from above.

[0022] In FIG. 2, the cushion pad 22 is shown in a perspective view. As shown in FIG. 2, the cushion pad 22 has a main portion 22M that supports the buttocks and thighs of the seated occupant from below, and left and right side support portions 22S that support the buttocks and thighs of the seated occupant from the sides. Two suspension grooves 24 extending in the left-right direction are formed in the main portion 22M, and the main portion 22M is partitioned into a front portion 22MF, a middle portion 22MS in the front-rear direction, and a rear portion 22MR by these two suspension grooves 24.

[0023] Figure 3 shows a cross-sectional view taken along the line 3-3 of Figure 1. As shown in Figure 3, a hanging-in portion 26A of the cushion skin 26 is disposed in the rear hanging-in groove 24. Figure 4 shows a cross-sectional view taken along the line 4-4 of Figure 3. In Figure 4, for the sake of convenience, the illustration of the cushion pad 22 is omitted. As shown in Figure 4, the cushion skin 26 is composed of a first skin piece 28 and a second skin piece 30, and the hanging-in portion 26A is formed by sewing the end 28A of the first skin piece 28 and the end 30A of the second skin piece 30. This hanging-in portion 26A is a portion where the end 28A of the first skin piece 28 and the end 30A of the second skin piece 30 are bent downward, and is formed in a long shape in the left-right direction (the direction perpendicular to the plane of Figure 4).

[0024] A hanging-in cloth 42 is attached to the above-mentioned hanging-in portion 26A. The hanging-in cloth 42 has a sandwiching portion 42S sandwiched and sewn between the end 28A of the first skin piece 28 and the end 30A of the second skin piece 30, and an extending portion 42E extending from the sandwiching portion 42S to the side opposite to the seated occupant side. The hanging-in cloth 42 is composed of, for example, a non-woven fabric, and has a long strip shape with the left-right direction as the longitudinal direction. The longitudinal dimension of the hanging-in cloth 42 is set slightly shorter than the longitudinal dimension of the hanging-in portion 26A.

[0025] The hanging-in cloth 42 is folded back at a folding-back portion 42A which is the end on the seated occupant side between the end 28A of the first skin piece 28 and the end 30A of the second skin piece 30. One end 42Z of the hanging-in cloth 42 is aligned with the tip 28B of the end 28A of the first skin piece 28 and the tip 30B of the end 30A of the second skin piece 30.

[0026] In the overlapping piece portion 42C, which is a portion from one end 42Z of the overlapping portion 42B folded back in the hanging cloth 42 to the boundary portion with the folding portion 42A, the boundary portion with the folding portion 42A is sewn to the end 28A of the first skin piece 28 by the first sewing portion S1. Note that the end 28A of the first skin piece 28 is the end that contacts the overlapping piece portion 42C among the end 28A of the first skin piece 28 and the end 30A of the second skin piece 30. Further, the overlapping portion 42B of the hanging cloth 42 is sewn to both the end 28A of the first skin piece 28 and the end 30A of the second skin piece 30 by the second sewing portion S2. The second sewing portion S2 is set to be slightly separated downward from the first sewing portion S1.

[0027] In the extending portion 42E of the hanging cloth 42, a plurality of insertion holes 42H shown in FIG. 3 are formed at intervals in the left - right direction, and a hog ring 44 as a locking member is inserted into each insertion hole 42H. The hog ring 44 attached to the extending portion 42E of the hanging cloth 42 is wound around and locked to an insert wire 46 as a locked member provided at the bottom of the hanging groove 24. The insert wire 46 is a wire embedded in the bottom of the hanging groove 24 and is embedded in the cushion pad 22 by, for example, integral foam molding.

[0028] A hard material 48 is fixed to the tip (lower end) of the hanging cloth 42. The hard material 48 is made of a material harder than the hanging cloth 42 (for example, a resin material) and has a long shape with the longitudinal direction in the left - right direction. The hard material 48 is fixed to the hanging cloth 42 by means such as sewing and adhesion. The hard material 48 is arranged on the tip side (here, the lower end side) of the hanging cloth 42 with respect to the plurality of insertion holes 42H. The hard material 48 is formed shorter than the hanging cloth 42 in the left - right direction and is provided on the center side in the left - right direction of the hanging cloth 42. There is no hard material 48 provided at both ends in the left - right direction of the hanging cloth 42.

[0029] As shown in FIG. 4, the end portion 28A of the first skin piece 28 and the end portion 30A of the second skin piece 30 are sewn together by a passenger-side seam S3 at a portion on the passenger side (here, the upper side) of the sandwiching portion 42S.

[0030] Next, an example of a method for manufacturing a suspended structure portion having a cushion skin 26 and a suspended cloth 42 will be described with reference to FIGS. 5A to 7B. In the following description, in the suspended cloth 42 shown in FIG. 4, the portion that becomes the sandwiching portion 42S is referred to as a first portion 42X (see FIGS. 5A, 5B, etc.), and the portion that becomes an extending portion 42E extending from the sandwiching portion 42S to the side opposite to the seated passenger side is referred to as a second portion 42Y (see FIGS. 5A, 5B, etc.). Also, in the suspended cloth 42 shown in FIGS. 5A, 6A, and 7A, for the sake of convenience, the illustration of the insertion hole 42H (see FIG. 3) is omitted.

[0031] FIG. 5A schematically shows the first step in a plan view, and FIG. 5B schematically shows the first step in a longitudinal sectional view. Note that FIGS. 5A and 5B show a jig 50 that forms a part of the sewing apparatus and is used in the first step, and FIG. 5B schematically shows a sewing needle 52 that forms a part of the sewing apparatus. In FIG. 5A, an arrow X1 indicates the position and direction in which sewing progresses in the plan view in the first step. Also, in FIG. 5A, the boundary between the first portion 42X and the second portion 42Y in the suspended cloth 42 is indicated by a two-dot chain line. As shown in FIG. 5B, in the first step, with the jig 50, the suspended cloth 42 is overlaid on the end portion 28A of the first skin piece 28 with the terminal 42Z on the side opposite to the second portion 42Y side in the first portion 42X aligned with the tip 28B of the end portion 28A of the first skin piece 28, and the end portion 28A of the first skin piece 28 is sewn using the sewing needle 52 at a position where the first portion 42X is the starting point of the fold-back.

[0032] FIG. 6A schematically shows a second process after the first process in a plan view, and FIG. 6B schematically shows the second process in a longitudinal sectional view. Note that FIGS. 6A and 6B show a jig 54 that forms part of the sewing apparatus and is used in the second process. Although detailed illustration is omitted, the jig 54 is vertically movable. In FIG. 6A, arrow X2 indicates the position and direction in which sewing progresses in the plan view in the second process. As shown in FIG. 6B, in the second process, after folding back the suspended cloth 42 at the portion sewn in the first process, a first portion 42X is sandwiched between the end 28A of the first skin piece 28 and the end 30A of the second skin piece 30, and using a sewing needle 52, the end 28A of the first skin piece 28 and the end 30A of the second skin piece 30 are sewn (stitched together) at a portion closer to the seated occupant side than the position of the first portion 42X.

[0033] FIG. 7A schematically shows a third process after the second process in a plan view, and FIG. 7B schematically shows the third process in a longitudinal sectional view. In FIG. 7A, arrow X3 indicates the position and direction in which sewing progresses in the plan view in the third process. As shown in FIG. 7B, in the third process, an overlapping portion 42W overlapped by folding back in the first portion 42X is sewn (stitched) to the end 28A of the first skin piece 28 and the end 30A of the second skin piece 30 using a sewing needle 52. Note that since the third process is executed after the end 28A of the first skin piece 28 and the end 30A of the second skin piece 30 are sewn together in a double layer in the second process, sewing is easy.

[0034] As described above, the suspended cloth 42 shown in FIG. 4 is sewn to the end 28A of the first skin piece 28 and the end 30A of the second skin piece 30. Thereafter, as shown in FIG. 3, by inserting the hog ring 44 through each insertion hole 42H of the suspended cloth 42 and locking it to the insert wire 46, the suspended portion 26A of the cushion skin 26 is suspended.

[0035] Next, the operation and effects of the present embodiment will be described.

[0036] According to this embodiment, the suspension cloth 42 is sandwiched between the end 28A of the first skin piece 28 and the end 30A of the second skin piece 30 and is sewn together to these two ends 28A and 28B. As shown in FIG. 3, the hog ring 44 attached to the extension part 42E of the suspension cloth 42 is locked to the insert wire 46 provided at the bottom of the suspension groove 24. Therefore, the first skin piece 28 and the second skin piece 30 shown in FIG. 4 can be evenly suspended.

[0037] Also, in this embodiment, the passenger-side stitching part S3 stitches the end 28A of the first skin piece 28 and the end 30A of the second skin piece 30 at a part on the passenger side with respect to the sandwiching part 42S of the suspension cloth 42. For this reason, it is possible to prevent the end of the suspension cloth 42 disposed between the end 28A of the first skin piece 28 and the end 30A of the second skin piece 30 from being visible from the seated passenger side, and the appearance quality can be ensured.

[0038] As described above, in this embodiment, the two skin pieces (the first skin piece 28 and the second skin piece 30) can be evenly suspended and the appearance quality can be ensured. In addition, since the first skin piece 28 and the second skin piece 30 can be evenly suspended, the bias of the cushion skin 26 can be suppressed, and the generation of unnecessary highlight lines on the surface of the cushion skin 26 can be suppressed.

[0039] Also, in this embodiment, the first sewing part S1 is sewn before the second sewing part S2 during sewing, and the second sewing part S2 is sewn after the suspension cloth 42 is folded back at the folding part 42A. Therefore, it is easy to align the suspension cloth 42 with respect to the first skin piece 28, and it is easy to adjust the extension length of the extension part 42E of the suspension cloth 42 to a desired length.

[0040] Next, with reference to FIGS. 8 and 9 and making use of FIG. 7B, another example of a method for manufacturing a suspension structure portion having a cushion skin 26 and a suspension cloth 42 will be described. In the following description, in the same manner as in the case of the example of the attachment method of the suspension cloth 42 already described, in the suspension cloth 42 shown in FIG. 4, the portion that becomes the clamping portion 42S is referred to as the first portion 42X (see FIG. 9), and the portion that becomes the extension portion 42E extending from the clamping portion 42S to the side opposite to the seated passenger side is referred to as the second portion 42Y (see FIG. 9).

[0041] FIG. 8 shows a perspective view of an intermediate state of the first step of another example of a method for manufacturing a suspension structure portion having a cushion skin 26 and a suspension cloth 42 (both see FIG. 4). As shown in FIG. 8, in the first step, the end 28A of the first skin piece 28 and the end 30A of the second skin piece 30 are overlapped, and the end 28A of the first skin piece 28 and the end 30A of the second skin piece 30 are sewn at a position a predetermined distance from their tips 28B, 30B sides (see the passenger side sewing portion S3 in the figure). In FIG. 8, the portion indicated by the two-dot chain line is the portion to be sewn in the first step.

[0042] FIG. 9 shows a perspective view of an intermediate state of the second step after the first step shown in FIG. 8. As shown in FIG. 9, in the second step, after the end 28A of the first skin piece 28 and the end 30A of the second skin piece 30 are opened in the direction of separation from each other starting from the portion (see the passenger side sewing portion S3) sewn in the first step, the first portion 42X of the suspension cloth 42 is overlapped on the opened side surface of the end 28A of the first skin piece 28, and with the terminal 42Z on the side opposite to the second portion 42Y side in the first portion 42X aligned with the tip 28B of the end 28A of the first skin piece 28, the first portion 42X of the suspension cloth 42 is sewn at a position starting from the folded-back point on the opened portion of the end 28A of the first skin piece 28 (see the first sewing portion S1 in the figure). In FIG. 9, the portion indicated by the two-dot chain line is the portion to be sewn in the second step.

[0043] In the third process after the second process, the suspension cloth 42 is folded back at the portion sewn in the second process (see the first sewing portion S1 in the figure), and as shown in FIG. 7B, the first portion 42X of the suspension cloth 42 is sandwiched between the end portion 28A of the first skin piece 28 and the end portion 30A of the second skin piece 30. The overlapping portion 42W that is overlapped by folding in the first portion 42X is sewn to the end portion 28A of the first skin piece 28 and the end portion 30A of the second skin piece 30 using a sewing needle 52.

[0044] As a result, the suspension cloth 42 shown in FIG. 4 is sewn to the end portion 28A of the first skin piece 28 and the end portion 30A of the second skin piece 30. Thereafter, as shown in FIG. 3, the hog ring 44 is inserted through each insertion hole 42H of the suspension cloth 42 and locked to the insert wire 46, whereby the suspension portion 26A of the cushion skin 26 is suspended.

[0045] In another example of the manufacturing method of the suspension structure portion described above, as shown in FIG. 8, the end portion 28A of the first skin piece 28 and the end portion 30A of the second skin piece 30 are sewn in the first process, so that it is easy to align the tip 28B of the end portion 28A of the first skin piece 28 and the tip 30B of the end portion 30A of the second skin piece 30.

[0046] In the above-described embodiments shown in FIGS. 1 to 9, the "suspension structure of the seat skin" according to the present invention is applied to the seat cushion 12. However, in addition to the seat cushion 12, the "suspension structure of the seat skin" according to the present invention may also be applied to the seat back (14). Further, a configuration may be adopted in which the "suspension structure of the seat skin" according to the present invention is applied only to the seat back (14).

[0047] In the above-described embodiment, an example in which the "suspension structure of the seat skin" according to the present invention is applied to the portion of the suspension groove 24 extending in the seat width direction has been described. However, for example, the "suspension structure of the seat skin" according to the present invention may be applied to the portion of the suspension groove extending in a direction orthogonal to the seat width direction.

[0048] In the above-described embodiment, the hog ring 44 is applied as the locking member, and the insert wire 46 is applied as the locked member. However, as a modification of the above-described embodiment, for example, a locking member such as an arrow shape is fixed to the hanging cloth (42), and a resin clip as the locked member is provided at the bottom of the hanging groove (24). Such a configuration is also possible. In the case of such a modification, the locking member such as an arrow shape is arranged, for example, in place of the hardwood 48 of the above-described embodiment.

[0049] Also, when sewing the hanging cloth (42) to which a locking member such as an arrow shape is fixed to the end (28A) of the first skin piece (28) and the end (30A) of the second skin piece (30), in the step where the locking member is placed at a position deviated from the end (28A) of the first skin piece (28) and the end (30A) of the second skin piece (30), for example, the jig 54 shown in FIG. 6B is used to hold the locking member.

[0050] In the above-described embodiment, the hanging cloth 42 has a configuration including an overlapping portion 42W that is folded and overlapped between the end 28A of the first skin piece 28 and the end 30A of the second skin piece 30. However, as a modification of the above-described embodiment, the hanging cloth may have a configuration that does not include an overlapping portion that is folded and overlapped between the end (28A) of the first skin piece (28) and the end (30A) of the second skin piece (30).

[0051] Also, as a modification of an example of the manufacturing method of the hanging structure portion described in the above-described embodiment, a configuration in which the order of sewing in the second step shown in FIG. 6B and the sewing in the third step shown in FIG. 7B is reversed is also possible.

[0052] Note that the above-described embodiment and the plurality of modifications described above can be implemented in appropriate combinations.

[0053] As described above, an example of the present invention has been described. However, the present invention is not limited to the above, and it goes without saying that various modifications can be made without departing from the gist of the present invention.

Explanation of Reference Numerals

[0054] 10 Vehicle seat 12 Seat cushion 14 Seat back 22 Cushion pad (padding material) 24 Suspension groove 26 Cushion skin (seat skin) 26A Suspension part 28 First skin piece 28A End of the first skin piece 28B Tip of the end of the first skin piece 30 Second skin piece 30A End of the second skin piece 30B Tip of the end of the second skin piece 42 Suspension cloth 42A Folded-back part 42B Overlapping part 42C Overlapping piece part 42E Extended part 42S Clamping part 42X First part 42Y Second part 42Z Terminal 44 Hog ring (locking member) 46 Insert wire (member to be locked) S1 First sewing part S2 Second sewing part S3 Occupant side stitching part

Claims

1. A pad material that constitutes a cushion material for a vehicle seat, has a suspension groove formed therein, and has a locked member provided at the bottom of the suspension groove; A seat skin that is placed over the pad material, includes a first skin piece and a second skin piece, and has a suspension portion in which an end of the first skin piece and an end of the second skin piece are sewn together and disposed in the suspension groove; A suspension cloth that has a sandwiching portion sandwiched and sewn together between the end of the first skin piece and the end of the second skin piece, and has an extending portion extending from the sandwiching portion to the side opposite to the seated occupant side, and a locking member that is locked to the locked member is attached to the extending portion; An occupant-side sewing portion that sews the end of the first skin piece and the end of the second skin piece at a portion on the seated occupant side rather than the sandwiching portion; A suspension structure of a seat skin having the above.

2. The suspension cloth is folded back at a folded-back portion that is an end on the seated occupant side between the end of the first skin piece and the end of the second skin piece, and one terminal is aligned with the tip of the end of the first skin piece and the tip of the end of the second skin piece; In an overlapping piece portion that is a portion from one terminal to the boundary portion with the folded-back portion among the overlapping portions overlapped by folding in the suspension cloth, a first sewing portion that sews the boundary portion with the folded-back portion to the end of the first skin piece and the end of the second skin piece that is in contact with the overlapping piece portion; A second sewing portion that sews the overlapping portion of the suspension cloth to both the end of the first skin piece and the end of the second skin piece; The suspension structure of a seat skin according to Claim 1, provided with the above.

3. A seat cushion that supports the buttocks and thighs of a seated occupant; A seat back that supports the back of a seated occupant; Comprising; A vehicle seat in which at least one of the seat cushion and the seat back has the suspension structure of the seat skin according to Claim 1 or Claim 2.

4. A manufacturing method of a suspension structure portion having a seat skin that includes a suspension portion in which an end of a first skin piece and an end of a second skin piece are sewn together and disposed in a suspension groove, and a suspension cloth that has a sandwiching portion sandwiched and sewn together between the end of the first skin piece and the end of the second skin piece, is folded back at a folded-back portion that is an end on the seated occupant side, and has an extending portion extending from the sandwiching portion to the side opposite to the seated occupant side. In the hanging cloth, the portion that becomes the clamping portion is defined as the first portion, and the portion that becomes the extending portion is defined as the second portion. A first step of overlapping the hanging cloth on the end of the first skin piece with the terminal on the side of the first portion opposite to the second portion side in the first portion aligned with the tip of the end of the first skin piece, and sewing the hanging cloth to the end of the first skin piece at a position where the first portion serves as the folding starting point. After the first step, the hanging cloth is folded back at the portion sewn in the first step, and then the first portion is sandwiched between the end of the first skin piece and the end of the second skin piece, and the end of the first skin piece and the end of the second skin piece are sewn together at a portion closer to the seated occupant side than the position of the first portion. After the second step, a third step of sewing the overlapping portion overlapped by folding in the first portion to the end of the first skin piece and the end of the second skin piece. A manufacturing method of a hanging structure part having the above steps.

5. A seat skin including a hanging portion in which the ends of a first skin piece and a second skin piece are sewn together and disposed in a hanging groove, and a hanging cloth including a clamping portion sandwiched between the ends of the first skin piece and the second skin piece and sewn together and folded back at a folded-back portion which is the end on the seated occupant side, and an extending portion extending from the clamping portion to the side opposite to the seated occupant side. A manufacturing method of a hanging structure part having the above components, In the hanging cloth, the portion that becomes the clamping portion is defined as the first portion, and the portion that becomes the extending portion is defined as the second portion. A first step of overlapping the end of the first skin piece and the end of the second skin piece, and sewing the end of the first skin piece and the end of the second skin piece at a position at a predetermined distance from their tip sides. After the first step, starting from the portion sewn in the first step, the ends of the first skin piece and the second skin piece are opened in the separating direction from each other, and then the first portion is overlapped on the opened side surface of the end of the first skin piece, and with the terminal on the side of the first portion opposite to the second portion side aligned with the tip of the end of the first skin piece, the first portion is sewn at a position where the first portion serves as the folding starting point on the opened portion of the end of the first skin piece. After the second step, the suspended cloth is folded back at the portion sewn in the second step, and the first portion is sandwiched between the end of the first skin piece and the end of the second skin piece. A third step of sewing the overlapping portion overlapped by folding in the first portion to the end of the first skin piece and the end of the second skin piece; A method for manufacturing a suspended structure portion having the same.

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