JP7791054B2 - Seat covers and vehicle seats - Google Patents

Description

The present invention relates to a seat cover and a vehicle seat.

Patent Document 1 below discloses a seat cover that forms the surface of a vehicle seat. The seat cover described in this document is constructed by laminating a surface material that forms the design surface and an elastic material that can stretch and contract elastically. The seat cover also has a stitched portion exposed on the design surface, and an anchor portion that is located on the back side of the elastic material and is less susceptible to bending deformation than the surface material. In a recessed portion formed in the seat cover, the surface material, which is bending and deforming toward the seat pad with the elastic material crushed, is sewn to the anchor portion by the stitched portion.

Japanese Patent Application Laid-Open No. 2020-1560

However, in a configuration in which recessed portions are formed on the design surface of a seat cover, it is thought that wrinkles may easily occur where multiple recessed portions meet, but the configuration described in Patent Document 1 does not take this into consideration.

In consideration of the above, the present invention aims to provide a seat cover and vehicle seat that can prevent wrinkles from forming where multiple recessed portions meet.

The seat cover of the first aspect is composed of three or more upholstery materials, and includes a main upholstery material covering a seat pad, a plurality of recessed portions formed on the main upholstery material and having a junction where three or more of the upholstery materials join together, recessed toward the seat pad, and a stitching portion that joins adjacent upholstery materials together in an area different from the junction.

According to the first aspect of the seat cover, the main skin material covering the seat pad is composed of three or more sheets of cover material. The main skin material has multiple recessed portions recessed toward the seat pad. The multiple recessed portions also have a junction where three or more of them meet. Adjacent cover materials are joined by a sewn portion in a different area from the junction. This prevents wrinkles from forming in the main skin material at the junction where the multiple recessed portions meet due to tension in the sewn portion.

A seat cover of a second aspect is the seat cover of the first aspect, wherein the upholstery main body includes a first upholstery material, a second upholstery material, a third upholstery material, and a fourth upholstery material, wherein the first upholstery material and the second upholstery material are joined at the stitching portion, and a first recessed portion is formed at the boundary between the first upholstery material and the second upholstery material, the third upholstery material and the fourth upholstery material are joined at the stitching portion, and a second recessed portion is formed at the boundary between the third upholstery material and the fourth upholstery material, and the first upholstery material and the third upholstery material are joined at the stitching portion, and a third recessed portion is formed at the boundary between the first upholstery material and the third upholstery material. is formed, the second upholstery material and the fourth upholstery material are joined at the sewn portion, and a fourth recessed portion is formed at the boundary between the second upholstery material and the fourth upholstery material. At the joining portion of the first recessed portion, the second recessed portion, the third recessed portion, and the fourth recessed portion, there is no joining portion between the first upholstery material and the second upholstery material by the sewn portion, there is no joining portion between the third upholstery material and the fourth upholstery material by the sewn portion, there is no joining portion between the first upholstery material and the third upholstery material by the sewn portion, and there is no joining portion between the second upholstery material and the fourth upholstery material by the sewn portion.

According to the second aspect of the seat cover, the upholstery body covering the seat pad is composed of a first upholstery material through a fourth upholstery material. The upholstery body has first through fourth recesses recessed toward the seat pad. The first through fourth recesses have a junction where they meet. At the junction, there is no sewn joint between the first and second upholstery materials, no sewn joint between the third and fourth upholstery materials, no sewn joint between the first and third upholstery materials, and no sewn joint between the second and fourth upholstery materials. This prevents wrinkles from forming in the upholstery body at the junction where the first through fourth recesses meet due to tension in the sewn joints.

A seat cover of a third aspect is the seat cover of the first aspect, wherein the skin main body includes a first skin, a second skin, and a third skin, the first skin and the second skin being joined at the stitching portion, and a first recessed portion being formed at the boundary between the first skin and the second skin, the first skin and the third skin being joined at the stitching portion, and a second recessed portion being formed at the boundary between the first skin and the third skin, and The third upholstery material is joined at the sewn portion, and a third recessed portion is formed at the boundary between the second upholstery material and the third upholstery material. At the joining portion of the first recessed portion, the second recessed portion, and the third recessed portion, there is no joining portion between the first upholstery material and the second upholstery material by the sewn portion, there is no joining portion between the first upholstery material and the third upholstery material by the sewn portion, and there is no joining portion between the second upholstery material and the third upholstery material by the sewn portion.

According to the third aspect of the seat cover, the upholstery body covering the seat pad is composed of a first upholstery body through a third upholstery body. The upholstery body has first to third recessed portions recessed toward the seat pad. The first to third recessed portions have a junction where they meet. At the junction, there is no sewn joint between the first and second upholstery bodies, no sewn joint between the first and third upholstery bodies, and no sewn joint between the second and third upholstery bodies. This prevents wrinkles from forming in the upholstery body at the junction where the first to third recessed portions meet due to tension in the sewn joints.

A fourth aspect of the vehicle seat comprises a seat body having a seat cushion that supports the buttocks of a seated occupant and a seat back that supports the back of the seated occupant; a seat pad that forms part of the seat body; a skin body that includes three or more sheets of skin material and covers the seat pad; and a seat cover that has a plurality of recessed portions formed on the skin body and having a junction where the three or more sheets join together, recessed toward the seat pad, and a stitching portion that joins adjacent skin materials at the recessed portions in an area different from the junction.

In the fourth aspect of the vehicle seat, the upholstery main body covering the seat pad that constitutes part of the seat body is composed of three or more upholstery sheets. The upholstery main body has multiple recessed portions recessed toward the seat pad. The multiple recessed portions also have a junction where three or more of the recessed portions meet. Adjacent upholstery sheets are joined by stitching at recessed portions in areas that are different from the junction. This prevents wrinkles from forming in the upholstery main body at the junction where the multiple recessed portions meet, due to tension in the stitching.

The seat cover and vehicle seat of the present invention have the excellent effect of preventing wrinkles from forming where multiple recessed portions meet.

1 is a side view schematically showing a vehicle seat according to a first embodiment; FIG. 2 is a front view schematically showing a seat back. FIG. 2 is an exploded view of a portion of the seat cover. FIG. 3 is an enlarged view of a portion of the first skin material. FIG. 10 is a diagram showing a first sewing step. FIG. 10 is a diagram showing the first and second cover materials laid out after the first sewing step. FIG. 10 is a diagram showing a second sewing step. FIG. 10 is a diagram showing the third and fourth cover materials laid out after the second sewing step. FIG. 10 is a diagram showing a third sewing step. FIG. 10 is a diagram showing the first to fourth cover materials laid out after the third sewing step. FIG. 10 is an exploded view showing a portion of a seat cover for a vehicle seat according to a second embodiment. FIG. 10 is a diagram showing the first to fourth cover materials laid out after the third sewing step. FIG. 11 is a front view schematically showing a seat back of a vehicle seat according to a third embodiment. FIG. 2 is an exploded view of a portion of the seat cover. FIG. 10 is a diagram showing the first to third cover materials laid out after the second sewing step.

A vehicle seat 10 according to a first embodiment of the present invention will be described using Figures 1 to 10. Note that the arrows FR, UP, RH, and LH shown in the figures indicate the front, upper, right, and left sides of the seat, respectively, as seen by an occupant seated in the vehicle seat 10. Hereinafter, when the terms front-to-rear, up-down, and left-to-right are used in descriptions, they refer to the front-to-rear direction of the seat, the up-and-down direction of the seat, and the left-to-right direction of the seat, unless otherwise specified. The left-to-right direction of the seat coincides with the width direction of the seat.

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. Here, the seat cushion 12 and the seat back 14 constitute a seat body 16.

The seat cushion 12 is configured such that a cushion pad 20 covered by a cushion cover 18 is attached to a cushion frame (not shown) that forms the framework of the seat cushion 12. The seat cushion 12 is fixed to the floor of the vehicle body, for example. Here, the cushion cover 18 is an example of a seat cover, and the cushion pad 20 is an example of a seat pad.

The seat back 14 is configured such that a back pad 24 covered by a back cover 22 is attached to a back frame (not shown) that forms the framework of the seat back 14. The seat back 14 is supported at the rear end of the seat cushion 12. Here, the back cover 22 is an example of a seat cover, and the back pad 24 is an example of a seat pad.

Next, we will explain the detailed structure of the back cover 22.

As shown in Figure 2, the back cover 22 includes a skin body 28 formed by joining together multiple pieces of skin material 26 cut to a predetermined shape. The skin material 26 may be made of cloth, leather, synthetic leather, or the like. The skin body 28 has multiple recessed portions 30 recessed toward the back pad 24. These multiple recessed portions 30 are formed along the stitching 34 (see Figure 10, etc.), which will be described later, and have a significant impact on the design of the back cover 22.

Figure 3 shows the portion of the skin body 28 surrounded by the dashed line 3 in Figure 2. The portion of the skin body 28 shown in Figure 3 is composed of four skins 26. Note that Figure 3 shows the four skins 26 as viewed from the back side (the surface facing the back pad 24). Here, the four skins 26 will be referred to as the first skin 26A, second skin 26B, third skin 26C, and fourth skin 26D, respectively.

Figure 4 shows the ends of the first upholstery material 26A facing the second upholstery material 26B, the third upholstery material 26C, and the fourth upholstery material 26D. As shown in this figure, the end of the first upholstery material 26A facing the second upholstery material 26B is an upper joint S11 with a seam allowance dimension W1. The end of the first upholstery material 26A facing the third upholstery material 26C is a right joint S12 with a seam allowance dimension W1. The seam allowance dimension W1 is set to 10 mm, for example. The corners at the boundary between the upper joint S11 and the right joint S12 of the first upholstery material 26A are removed by C-face cutting. The C-face cut end at the boundary between the upper joint S11 and the right joint S12 of the first upholstery material 26A is referred to as the C-face cut end 32.

As shown in FIG. 3, the ends of the second upholstery material 26B facing the first upholstery material 26A, the third upholstery material 26C, and the fourth upholstery material 26D are configured similarly to the first upholstery material 26. The end of the second upholstery material 26B facing the first upholstery material 26A is a bottom joint S21 with a seam allowance dimension set to W1. The end of the second upholstery material 26B facing the fourth upholstery material 26D is a right joint S22 with a seam allowance dimension set to W1. The corners at the boundary between the bottom joint S21 and the right joint S22 of the second upholstery material 26B are removed by C-face cutting. As a result, the C-face cut edge at the boundary between the bottom joint S21 and the right joint S22 of the second upholstery material 26B is a C-face cut edge 32.

The ends of the third upholstery material 26C facing the first upholstery material 26A, the second upholstery material 26B, and the fourth upholstery material 26D are configured similarly to the first upholstery material 26. The end of the third upholstery material 26C facing the first upholstery material 26A is a left joint S31 with a seam allowance dimension set to W1. The end of the third upholstery material 26C facing the fourth upholstery material 26D is an upper joint S32 with a seam allowance dimension set to W1. The corners at the boundary between the left joint S31 and the upper joint S32 of the third upholstery material 26C are removed by C-face cutting. As a result, the edge where C-face cutting is performed at the boundary between the left joint S31 and the upper joint S32 of the third upholstery material 26C is a C-face cut edge 32.

The ends of the fourth upholstery material 26D facing the first upholstery material 26A, the second upholstery material 26B, and the third upholstery material 26C are configured similarly to the first upholstery material 26. The end of the fourth upholstery material 26D facing the third upholstery material 26C is a bottom joint S41 with a seam allowance dimension set to W1. The end of the fourth upholstery material 26D facing the second upholstery material 26B is a left joint S42 with a seam allowance dimension set to W1. The corners at the boundary between the bottom joint S41 and the left joint S42 of the fourth upholstery material 26D are removed by C-face cutting. As a result, the C-face cut edge at the boundary between the bottom joint S41 and the left joint S42 of the fourth upholstery material 26D is a C-face cut edge 32.

The first skin material 26A, the second skin material 26B, the third skin material 26C, and the fourth skin material 26D are then joined together through the following steps.

First, as shown in FIG. 5, the first and second upholstery materials 26A and 26B are overlapped. Here, the first and second upholstery materials 26A and 26B are overlapped with the surface of the first and second upholstery materials 26A (the surface facing the seated occupant) in contact with the surface of the second and second upholstery materials 26B (the surface facing the seated occupant). Next, with the first and second upholstery materials 26A and 26B overlapping, the upper joint S11 of the first and second upholstery materials 26A and the lower joint S21 of the second upholstery material 26B are sewn in a straight line along the left-right direction. The sewn portion is referred to as the sewn portion 34. This process is referred to as the first sewing process.

Next, as shown in Figure 6, after the first sewing process, the first cover material 26A and the second cover material 26B are unfolded. Note that the first cover material 26A and the second cover material 26B shown in Figure 6 are viewed from the back side (the surface facing the back pad 24).

Next, as shown in FIG. 7, the third upholstery material 26C and the fourth upholstery material 26D are overlapped. Here, the first upholstery material 26A and the second upholstery material 26B are overlapped with the surface of the third upholstery material 26C (the surface facing the seated occupant) in contact with the surface of the fourth upholstery material 26D (the surface facing the seated occupant). Next, with the third upholstery material 26C and the fourth upholstery material 26D overlapping, the upper joint S32 of the third upholstery material 26C and the lower joint S41 of the fourth upholstery material 26D are sewn in a straight line along the left-right direction. This process will be referred to as the second sewing process.

Next, as shown in Figure 8, after the second sewing process, the third and fourth upholstery materials 26C and 26D are unfolded. Note that the third and fourth upholstery materials 26C and 26D shown in Figure 8 are viewed from the back side (the surface facing the back pad 24).

Next, as shown in Figure 9, the first and second skins 26A and 26B are overlapped with the third and fourth skins 26C and 26D. Here, the first and second skins 26A and 26B are overlapped with the third and fourth skins 26C and 26D with the surface of the first skin 26A (the surface facing the seated occupant) in contact with the surface of the third skin 26C (the surface facing the seated occupant) and with the surface of the second skin 26B (the surface facing the seated occupant) in contact with the surface of the fourth skin 26D (the surface facing the seated occupant). Next, with the first and second skins 26A and 26B and the third and fourth skins 26C and 26D overlapping, the right joint S12 of the first skin 26A and the left joint S31 of the third skin 26C are sewn together in a vertically linear fashion, and the right joint S22 of the second skin 26B and the left joint S42 of the fourth skin 26D are sewn together in a vertically linear fashion. This process is referred to as the third sewing process.

Next, as shown in Figure 10, after the third sewing process, the first upholstery material 26A, the second upholstery material 26B, the third upholstery material 26C, and the fourth upholstery material 26D are unfolded. Note that the first upholstery material 26A, the second upholstery material 26B, the third upholstery material 26C, and the fourth upholstery material 26D shown in Figure 9 are viewed from the back side (the surface facing the back pad 24).

Through the above steps, the first skin material 26A, the second skin material 26B, the third skin material 26C, and the fourth skin material 26D are joined together.

As shown in Figures 2 and 10, a recessed portion 30 is formed along the stitching 34 at the boundary between the first upholstery material 26A and the second upholstery material 26B. The recessed portion 30 formed at the boundary between the first upholstery material 26A and the second upholstery material 26B is referred to as the first recessed portion 30A.

In addition, a recessed portion 30 is formed along the stitching 34 at the boundary between the third upholstery material 26C and the fourth upholstery material 26D. The recessed portion 30 formed at the boundary between the third upholstery material 26C and the fourth upholstery material 26D is referred to as the second recessed portion 30B.

In addition, a recessed portion 30 is formed along the stitching 34 at the boundary between the first upholstery material 26A and the third upholstery material 26C. The recessed portion 30 formed at the boundary between the first upholstery material 26A and the third upholstery material 26C is referred to as the third recessed portion 30C.

In addition, a recessed portion 30 is formed along the stitching 34 at the boundary between the second upholstery material 26B and the fourth upholstery material 26D. The recessed portion 30 formed at the boundary between the second upholstery material 26B and the fourth upholstery material 26D is referred to as the fourth recessed portion 30D.

The first recessed portion 30A, the second recessed portion 30B, the third recessed portion 30C, and the fourth recessed portion 30D intersect in a cross shape when viewed from the front side of the seat. Here, the portion where the first recessed portion 30A, the second recessed portion 30B, the third recessed portion 30C, and the fourth recessed portion 30D intersect, i.e., the portion where the first recessed portion 30A, the second recessed portion 30B, the third recessed portion 30C, and the fourth recessed portion 30D converge, will be referred to as the confluence portion 36.

In this embodiment, the corners at the boundary between the upper joint S11 and the right joint S12 of the first upholstery material 26A, the corners at the boundary between the lower joint S21 and the right joint S22 of the second upholstery material 26B, the corners at the boundary between the upper joint S32 and the left joint S31 of the third upholstery material 26C, and the corners at the boundary between the lower joint S41 and the left joint S42 of the fourth upholstery material 26D are removed by C-face cutting. As a result, at the joining portion 36, there is no joining portion by the stitching portion 34 between the upper joint S11 of the first upholstery material 26A and the lower joint S21 of the second upholstery material 26B. Furthermore, at the joining portion 36, there is no joining portion by the stitching portion 34 between the upper joint S32 of the third upholstery material 26C and the lower joint S41 of the fourth upholstery material 26D. Furthermore, at the confluence 36, there is no joint by a sewn portion 34 between the right joint S12 of the first upholstery material 26A and the left joint S31 of the third upholstery material 26C. Also, at the confluence 36, there is no joint by a sewn portion 34 between the right joint S22 of the second upholstery material 26B and the left joint S42 of the fourth upholstery material 26D.

(Actions and Effects of the Present Embodiment)
Next, the operation and effects of this embodiment will be described.

1 and 2, the seat back 14 of the vehicle seat 10 of this embodiment is configured to include the back cover 22 configured as described above. The area of the upholstery material main body 28 of this back cover 22, surrounded by the dashed line 3, is configured to include the first upholstery material 26A to the fourth upholstery material 26D. The upholstery material main body 28 also has first to fourth recessed portions 30A to 30D recessed toward the back pad 24. The first to fourth recessed portions 30A to 30D also have a junction 36 where they merge with one another. At the junction 36, there is no joint by the stitching 34 between the upper joint portion S11 of the first upholstery material 26A and the lower joint portion S21 of the second upholstery material 26B. Furthermore, at the confluence 36, there is no joining area by a stitching 34 between the upper joint S32 of the third upholstery 26C and the lower joint S41 of the fourth upholstery 26D. Furthermore, at the confluence 36, there is no joining area by a stitching 34 between the right joint S12 of the first upholstery 26A and the left joint S31 of the third upholstery 26C. Furthermore, at the confluence 36, there is no joining area by a stitching 34 between the right joint S22 of the second upholstery 26B and the left joint S42 of the fourth upholstery 26D. This prevents wrinkles from forming in the upholstery main body 28 at the confluence 36 where the first through fourth recesses 30A through 30D converge. This prevents wrinkles from impairing the appearance of the back cover 22.

In the embodiment described above, the corners of the first to fourth upholstery materials 26A to 26D are removed by C-cutting, resulting in no joints at the joining portion 36 due to the stitching 34. However, the present invention is not limited to this. For example, a configuration similar to that of the back cover 22 of the vehicle seat of the second embodiment described below may also be used.

Figure 11 is a diagram corresponding to Figure 3, showing the first upholstery material 26A to the fourth upholstery material 26D of the back cover 22 of the vehicle seat of the second embodiment. As shown in this figure, the first upholstery material 26A to the fourth upholstery material 26D of this embodiment do not have the C-face cut described above. Note that the members and parts of the back cover 22 of the vehicle seat 10 of the first embodiment described above are assigned the same reference numerals as the members and parts corresponding to the back cover 22 of the vehicle seat 10 of the first embodiment.

12, in the second embodiment, when the upper joint S11 of the first upholstery material 26A and the lower joint S21 of the second upholstery material 26B are sewn in a straight line along the left-right direction, the sewn portion 34 is not formed at the location 38 corresponding to the joining portion 36. Similarly, when the upper joint S32 of the third upholstery material 26C and the lower joint S41 of the fourth upholstery material 26D are sewn in a straight line along the left-right direction, the sewn portion 34 is not formed at the location 38 corresponding to the joining portion 36. Furthermore, when the right joint S12 of the first upholstery material 26A and the left joint S31 of the third upholstery material 26C are sewn in a straight line along the up-down direction, the sewn portion 34 is not formed at the location 38 corresponding to the joining portion 36. Additionally, when sewing the right joint S22 of the second upholstery material 26B and the left joint S42 of the fourth upholstery material 26D in a straight line along the vertical direction, the sewn portion 34 is not formed at the location 38 corresponding to the joining portion 36. Note that the portion of the sewn portion 34 designated by the reference symbol 34A is where backstitching has been performed.

Even in the configuration of the second embodiment described above, it is possible to eliminate the joining points of the sewn portions 34 at the confluence portion 36. This prevents the tension of the sewn portions 34 from causing wrinkles in the upholstery body 28 at the confluence portion 36 where the first recessed portion 30A to the fourth recessed portion 30D converge.

In addition, in the example described above, the first recessed portion 30A, the second recessed portion 30B, the third recessed portion 30C, and the fourth recessed portion 30D have a confluence 36 where they intersect in a cross shape, but the present invention is not limited to this. For example, as in the third embodiment described below, the first recessed portion 30A, the second recessed portion 30B, and the third recessed portion 30C may have a confluence 36 where they intersect in a T shape.

Figure 13 shows the seat back 14 of a vehicle seat of the third embodiment, and Figure 14 shows a view corresponding to Figure 3, showing the first upholstery material 26A to the third upholstery material 26C of the back cover 22. Note that the members and parts of the back cover 22 of the vehicle seat of the third embodiment that correspond to the back cover 22 of the vehicle seat 10 of the first embodiment described above are assigned the same reference numerals as the members and parts corresponding to the back cover 22 of the vehicle seat 10 of the first embodiment.

Here, Figure 14 shows the skin body 28 in the portion surrounded by the dashed line 3 in Figure 13. The skin body 28 in the portion shown in Figure 14 is composed of three skins 26. Here, the three skins 26 will be referred to as the first skin 26A, the second skin 26B, and the third skin 26C, respectively.

As shown in Figure 14, the end of the first upholstery material 26A facing the second upholstery material 26B and the third upholstery material 26C forms a right joint S12 with a seam allowance dimension set to W1.

The end of the second upholstery material 26B facing the first upholstery material 26A is a left joint S23 with a seam allowance dimension set to W1. The end of the second upholstery material 26B facing the third upholstery material 26C is a top joint S24 with a seam allowance dimension set to W1. The corners at the boundary between the left joint S23 and top joint S24 of the second upholstery material 26B have been removed by C-cutting.

The end of the third upholstery material 26C facing the first upholstery material 26A is a left joint S31 with a seam allowance dimension set to W1. The end of the third upholstery material 26C facing the second upholstery material 26B is a bottom joint S33 with a seam allowance dimension set to W1. The corners at the boundary between the left joint S31 and the bottom joint S33 of the third upholstery material 26C have been removed by C-cutting.

As shown in Figures 13 and 15, in the embodiment described above, at the junction 36 of the first recessed portion 30A, the second recessed portion 30B, and the third recessed portion 30C, there is no joint by the stitching 34 between the first upholstery material 26A and the second upholstery material 26B. Also, at this junction 36, there is no joint by the stitching 34 between the first upholstery material 26A and the third upholstery material 26C. Furthermore, at this junction 36, there is no joint by the stitching 34 between the second upholstery material 26B and the third upholstery material 26C. In this way, even in the third embodiment, there can be no joint by the stitching 34 at the junction 36. This prevents the tension of the stitching 34 from causing wrinkles in the upholstery body 28 at the junction 36 where the first recessed portion 30A to the third recessed portion 30C join.

In the above-described embodiments, the configuration of the present invention is applied to the back cover 22, but the configuration of the present invention can also be applied to the cushion cover 18. Furthermore, the configuration of the present invention can also be applied to a seat cover having a junction 36 where more recessed portions 30 converge than in the above-described embodiments.

The above describes one embodiment of the present invention, but the present invention is not limited to the above and can, of course, be implemented in various other modifications within the scope of its gist.

10 Vehicle seat 12 Seat cushion 14 Seat back 16 Seat body 18 Cushion cover (seat cover)
20 Cushion pad (seat pad)
22 Back cover (seat cover)
24 Back pad (seat pad)
26 Covering material 26A First covering material 26B Second covering material 26C Third covering material 26D Fourth covering material 28 Covering material main body 30 Recessed portion 30A First recessed portion 30B Second recessed portion 30C Third recessed portion 30D Fourth recessed portion 34 Sewn portion 36 Joint portion

Claims (4)

a skin body including three or more skins and covering the seat pad;
a plurality of recessed portions formed in the skin body, each having a junction where three or more recessed portions join together, and recessed toward the seat pad;
a stitching portion that joins the adjacently arranged skin materials together in a range different from the joining portion;
wherein there is no joining portion formed by the stitching at the joining portion where the plurality of recessed portions join together . the skin body includes a first skin, a second skin, a third skin, and a fourth skin,
the first skin material and the second skin material are joined at the stitching portion, and the first recessed portion is formed at the boundary between the first skin material and the second skin material;
the third skin material and the fourth skin material are joined at the stitching portion, and the second recessed portion is formed at the boundary between the third skin material and the fourth skin material;
the first and third skins are joined at the stitching portion, and the third recessed portion is formed at the boundary between the first and third skins;
the second skin material and the fourth skin material are joined at the stitching portion, and the fourth recessed portion is formed at the boundary between the second skin material and the fourth skin material;
2. The seat cover according to claim 1, wherein at the joining portion of the first, second, third and fourth recessed portions, there is no joining portion between the first upholstery material and the second upholstery material by the stitching, there is no joining portion between the third upholstery material and the fourth upholstery material by the stitching, there is no joining portion between the first upholstery material and the third upholstery material by the stitching, and there is no joining portion between the second upholstery material and the fourth upholstery material by the stitching. the skin body includes a first skin, a second skin, and a third skin,
the first skin material and the second skin material are joined at the stitching portion, and the first recessed portion is formed at the boundary between the first skin material and the second skin material;
the first and third skins are joined at the stitching portion, and the second recessed portion is formed at the boundary between the first and third skins;
the second skin material and the third skin material are joined at the stitching portion, and the third recessed portion is formed at the boundary between the second skin material and the third skin material;
2. The seat cover according to claim 1, wherein at the joining portion of the first, second, and third recessed portions, there is no joining portion between the first upholstery material and the second upholstery material by the stitching, there is no joining portion between the first upholstery material and the third upholstery material by the stitching, and there is no joining portion between the second upholstery material and the third upholstery material by the stitching. a seat body having a seat cushion that supports the buttocks of a seated occupant and a seat back that supports the back of the seated occupant;
a seat pad that constitutes a part of the seat body;
a seat cover comprising three or more sheets of skin material, a skin material main body covering the seat pad, a plurality of recessed portions formed on the skin material main body and having a junction where three or more sheets join together, recessed toward the seat pad, and a stitching portion joining adjacently arranged skin materials together at the junction in a range different from the junction, wherein there is no joint by the stitching portion at the junction where the plurality of dented portions join ;
A vehicle seat comprising: