JP2024000363A - Seat cover and vehicle seat - Google Patents

Abstract

To suppress the occurrence of wrinkles at a location where a plurality of recessed portions merge.SOLUTION: A back cover 22 includes a skin material main body 28 that is configured by including three or more skin materials 26 and covers a back pad 24. A plurality of recessed portions 30 are formed in the skin material main body 28. The plurality of recessed portions 30 have a merging portion 36 where three or more recessed portions merge with each other. Further, the back cover 22 includes a sewn portion 34 that joins the skin materials 26 disposed adjacent to each other at the recessed portion 30 in a range different from the merging portion 36.SELECTED DRAWING: Figure 2

Description

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

Patent Document 1 listed below discloses a seat cover that constitutes a surface portion of a vehicle seat. The seat cover described in this document is configured by laminating a cover material that forms a design surface and an elastic material that can be elastically expanded and contracted. Further, the seat cover includes a stitch portion exposed on the design surface and an anchor portion that is arranged on the back side of the elastic material and is less susceptible to bending and deformation than the cover material. In the recessed portion formed in the seat cover, the cover material, which is flexibly deformed toward the seat pad with the elastic material crushed, is sewn to the anchor portion by the stitch portion.

Japanese Patent Application Publication No. 2020-1560

By the way, in a configuration in which a recessed portion is formed on the design surface side of a seat cover, wrinkles may be likely to occur at a location where a plurality of recessed portions merge, but the configuration described in Patent Document 1 mentioned above is , does not take this point into account.

The present invention has been made in consideration of the above-mentioned facts, and an object of the present invention is to obtain a seat cover and a vehicle seat that can suppress the occurrence of wrinkles at a location where a plurality of recessed portions meet.

The seat cover of the first aspect is configured to include three or more skin materials, and includes a skin material body that covers the seat pad, and a junction where the three or more skin materials are formed on the skin material body and merge with each other. The seat pad includes a plurality of recessed portions that are recessed toward the seat pad side, and a sewn portion that joins the skin materials disposed adjacent to each other in a range different from the merging portion.

According to the seat cover of the first aspect, the skin material main body that covers the seat pad is configured to include three or more skin materials. Further, a plurality of recessed portions recessed toward the seat pad side are formed in the skin material main body. Further, the plurality of recesses have a merging portion where three or more recesses merge with each other. Here, the skin materials disposed adjacent to each other are joined at a sewn portion in a range different from the merging portion. Thereby, it is possible to suppress the generation of wrinkles in the skin material main body at the merging portion where the plurality of depressions merge due to the tension of the sewn portion.

In the seat cover of the second aspect, in the seat cover of the first aspect, the skin material main body includes the first skin material, the second skin material, the third skin material, and the fourth skin material. The first skin material and the second skin material are joined at the sewn portion, and the first skin material and the second skin material The first recessed portion is formed at the boundary between the third and fourth skin materials, and the third skin material and the fourth skin material are joined at the sewn portion, and the third skin material and the fourth skin material are joined to each other by the sewing part. The second recessed portion is formed at the boundary with the skin material, and the first skin material and the third skin material are joined at the sewn portion, and the first skin material and the third skin material are joined at the sewn portion. The third recessed portion is formed at the boundary with the third skin material, and the second skin material and the fourth skin material are joined at the sewn portion, and the second skin material A fourth recessed portion is formed at the boundary between the material and the fourth skin material, and includes the first recessed portion, the second recessed portion, the third recessed portion, and the fourth recessed portion. At the confluence part between the first skin material and the second skin material, there is no joint between the first skin material and the second skin material, and the third skin material and the fourth skin material There is no joint by the sewing part between the first skin material and the third skin material, and there is no joint by the sewing part between the first skin material and the third skin material. There is no joint between the sewing part and the fourth skin material by the sewing part.

According to the seat cover of the second aspect, the skin material main body that covers the seat pad is configured to include the first skin material to the fourth skin material. Further, the skin material main body is formed with first to fourth recesses that are recessed toward the seat pad side. Further, the first to fourth recessed portions have a merging portion where they merge with each other. Here, at the confluence part, there is no joint between the first skin material and the second skin material by the sewn part, and there is no joint between the third skin material and the fourth skin material by the sewn part. There is no joint between the first skin material and the third skin material, and there is no joint between the second skin material and the fourth skin material. There are no joints between the parts. Thereby, it is possible to suppress the generation of wrinkles in the skin material main body at the merging portion where the first to fourth recessed portions merge due to the tension of the sewn portion.

In the seat cover of the third aspect, in the seat cover of the first aspect, the skin material main body includes the first skin material, the second skin material, and the third skin material. The first skin material and the second skin material are joined at the sewn portion, and the first skin material and the second skin material are joined at the boundary between the first skin material and the second skin material. A recessed portion is formed, the first skin material and the third skin material are joined at the sewn portion, and a recessed portion is formed at the boundary between the first skin material and the third skin material. The second recessed portion is formed, the second skin material and the third skin material are joined at the sewn portion, and a boundary between the second skin material and the third skin material is formed. A third recessed portion is formed at the merging portion of the first recessed portion, the second recessed portion, and the third recessed portion. There is no joint between the first skin material and the third skin material by the sewing part, and there is no joint between the first skin material and the third skin material by the sewing part, and the second skin material has no joint between the first skin material and the third skin material. There is no joint between the skin material and the third skin material by the sewn portion.

According to the seat cover of the third aspect, the skin material main body that covers the seat pad is configured to include the first skin material to the third skin material. Further, the skin material main body is formed with first to third recesses that are recessed toward the seat pad side. Further, the first to third recess portions have a confluence portion where they merge with each other. Here, at the confluence part, there is no joint between the first skin material and the second skin material due to the sewn part, and there is no joint between the first skin material and the third skin material due to the sewn part. There is no joint, and there is no joint between the second skin material and the third skin material by the sewn portion. Thereby, it is possible to suppress the generation of wrinkles in the skin material main body at the merging portion where the first to third recessed portions merge due to the tension of the sewn portion.

A vehicle seat according to a fourth aspect includes: 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; and a seat pad that constitutes a part of the seat body; It is configured to include the above skin materials, and has a skin material main body that covers the seat pad, and a merging part formed in the skin material main body and where three or more materials merge with each other, and a merging part where three or more materials merge with each other, The seat cover includes a plurality of recessed portions and a sewn portion that joins the skin materials arranged adjacent to each other in the recessed portion in a range different from the merging portion.

According to the vehicle seat of the fourth aspect, the skin material body that covers the seat pad that constitutes a part of the seat body is configured to include three or more skin materials. Further, a plurality of recessed portions recessed toward the seat pad side are formed in the skin material main body. Further, the plurality of recesses have a merging portion where three or more recesses merge with each other. Here, the skin materials disposed adjacent to each other are joined at a sewn portion in a recessed portion in a range different from the merging portion. Thereby, it is possible to suppress the generation of wrinkles in the skin material main body at the merging portion where the plurality of depressions merge due to the tension of the sewn portion.

The seat cover and vehicle seat according to the present invention have an excellent effect of being able to suppress the occurrence of wrinkles at a location where a plurality of recessed portions meet.

FIG. 1 is a side view schematically showing the vehicle seat of the first embodiment. FIG. 3 is a front view schematically showing the seat back. FIG. 3 is an exploded view showing a portion of the seat cover. It is an enlarged view of a part of the first skin material. It is a figure showing a 1st sewing process. It is a figure which shows the 1st skin material and the 2nd skin material developed after the 1st sewing process. It is a figure which shows the 2nd sewing process. It is a figure which shows the 3rd skin material and the 4th skin material developed after the 2nd sewing process. It is a figure which shows the 3rd sewing process. FIG. 7 is a diagram showing the first to fourth skin materials developed after the third sewing step. FIG. 7 is a partially exploded view showing a seat cover of a vehicle seat according to a second embodiment. FIG. 7 is a diagram showing the first to fourth skin materials developed after the third sewing step. FIG. 7 is a front view schematically showing a seat back of a vehicle seat according to a third embodiment. FIG. 3 is an exploded view showing a portion of the seat cover. FIG. 7 is a diagram showing the first to third skin materials developed after the second sewing process.

A vehicle seat 10 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 10. Note that arrow FR, arrow UP, arrow RH, and arrow LH shown in the figure respectively indicate the front side, the upper side, the right side, and the left side of the seat as viewed from the occupant seated on the vehicle seat 10. Hereinafter, when a description is made simply using front and rear, up and down, and left and right directions, unless otherwise specified, the front and back of the seat front and back direction, the top and bottom of the seat up and down direction, and the left and right of the seat left and right directions are meant, unless otherwise specified. Further, the sheet left-right direction coincides with the sheet width direction.

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

The seat cushion 12 has a structure in which a cushion pad 20 covered with a cushion cover 18 is attached to a cushion frame (not shown) that constitutes the skeleton of the seat cushion 12. This seat cushion 12 is fixed to, for example, the floor of the vehicle body. 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 has a structure in which a back pad 24 covered with a back cover 22 is attached to a back frame (not shown) that constitutes the skeleton of the seat back 14. This seat back 14 is supported by the rear end portion 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, the detailed configuration of the back cover 22 will be explained.

As shown in FIG. 2, the back cover 22 includes a skin material main body 28 formed by joining together a plurality of skin materials 26 cut into a predetermined shape. Note that as the skin material 26, cloth, leather, synthetic leather, etc. are used. A plurality of recessed portions 30 are formed in the skin material main body 28 and are recessed toward the back pad 24 side. These plurality of recessed parts 30 are formed along a sewing part 34 (see FIG. 10, etc.) which will be described later, and are a part that greatly influences the design of the back cover 22.

Here, FIG. 3 shows the skin material main body 28 in a portion surrounded by a dashed line 3 in FIG. The skin material main body 28 of the portion shown in FIG. 3 includes four skin materials 26. As shown in FIG. Note that FIG. 3 shows the four skin materials 26 viewed from the back side (the side facing the back pad 24). Here, the four skin materials 26 will be respectively referred to as a first skin material 26A, a second skin material 26B, a third skin material 26C, and a fourth skin material 26D.

FIG. 4 shows the ends of the first skin material 26A on the side of the second skin material 26B, the third skin material 26C, and the fourth skin material 26D. As shown in this figure, the end of the first skin material 26A on the second skin material 26B side forms an upper joint S11 with a seam allowance dimension set to W1. Further, the end of the first skin material 26A on the third skin material 26C side is a right joint portion S12 with a seam allowance dimension set to W1. Note that the seam allowance dimension W1 is set to 10 mm as an example. Further, the corner portion at the boundary between the upper joint portion S11 and the right joint portion S12 of the first skin material 26A is removed by performing a C-plane cut. Note that the end where the C-plane cut is performed at the boundary between the upper joint portion S11 and the right joint portion S12 of the first skin material 26A will be referred to as a C-plane cut end 32.

As shown in FIG. 3, the ends of the second skin material 26B on the side of the first skin material 26A, the third skin material 26C, and the fourth skin material 26D are also configured in the same manner as the first skin material 26. ing. The end of the second skin material 26B on the first skin material 26A side is a lower joint S21 with a seam allowance dimension set to W1. Further, the end of the second skin material 26B on the fourth skin material 26D side forms a right joint portion S22 with a seam allowance dimension set to W1. Further, the corner portion at the boundary between the lower joint portion S21 and the right joint portion S22 of the second skin material 26B is removed by performing a C-plane cut. As a result, the C-plane cut end at the boundary between the lower joint part S21 and the right joint part S22 of the second skin material 26B becomes a C-plane cut end 32.

The end portions of the third skin material 26C on the side of the first skin material 26A, the second skin material 26B, and the fourth skin material 26D are also configured in the same manner as the first skin material 26. The end of the third skin material 26C on the first skin material 26A side is a left joint S31 with a seam allowance dimension set to W1. Further, the end of the third skin material 26C on the fourth skin material 26D side forms an upper joint portion S32 with a seam allowance dimension set to W1. Further, the corner portion of the third skin material 26C at the boundary between the left joint portion S31 and the upper joint portion S32 is removed by performing a C-plane cut. As a result, the C-plane cut end at the boundary between the left joint S31 and the upper joint S32 of the third skin material 26C becomes a C-plane cut end 32.

The ends of the fourth skin material 26D on the side of the first skin material 26A, the second skin material 26B, and the third skin material 26C are also configured in the same manner as the first skin material 26. The end of the fourth skin material 26D on the third skin material 26C side is a lower joint S41 with a seam allowance dimension set to W1. Further, the end of the fourth skin material 26D on the second skin material 26B side is a left joint portion S42 in which the seam allowance size is set to W1. Further, a corner portion at the boundary between the lower joint portion S41 and the left joint portion S42 of the fourth skin material 26D is removed by performing a C-plane cut. As a result, the C-plane cut end at the boundary between the lower joint S41 and the left joint S42 of the fourth skin material 26D becomes a C-plane cut end 32.

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

First, as shown in FIG. 5, the first skin material 26A and the second skin material 26B are overlapped. Here, the first skin material 26A and the second skin material 26A are in contact with the surface of the first skin material 26A (the surface facing the seated passenger) and the surface of the second skin material 26B (the surface facing the seated passenger). The skin material 26B is overlapped. Next, with the first skin material 26A and the second skin material 26B overlapped, the upper joint portion S11 of the first skin material 26A and the lower joint portion S21 of the second skin material 26B are connected on the left and right sides. Sew in a straight line along the direction. Note that the sewn portion will be referred to as a sewn portion 34. Further, this process will be referred to as a first sewing process.

Next, as shown in FIG. 6, after the first sewing step, the first skin material 26A and the second skin material 26B are developed. Note that the first skin material 26A and the second skin material 26B shown in FIG. 6 are viewed from the back surface (the surface on the back pad 24 side).

Next, as shown in FIG. 7, the third skin material 26C and the fourth skin material 26D are overlapped. Here, the first skin material 26A and the second skin material 26A are in contact with the surface of the third skin material 26C (the surface facing the seated passenger) and the surface of the fourth skin material 26D (the surface facing the seated passenger). The skin material 26B is overlapped. Next, with the third skin material 26C and the fourth skin material 26D overlapped, the upper joint portion S32 of the third skin material 26C and the lower joint portion S41 of the fourth skin material 26D are connected on the left and right sides. Sew in a straight line along the direction. Note that this process will be referred to as a second sewing process.

Next, as shown in FIG. 8, after the second sewing step, the third skin material 26C and the fourth skin material 26D are developed. Note that the third skin material 26C and the fourth skin material 26D shown in FIG. 8 are viewed from the back surface (the surface on the back pad 24 side).

Next, as shown in FIG. 9, the first skin material 26A, the second skin material 26B, the third skin material 26C, and the fourth skin material 26D are overlapped. Here, the surface of the first skin material 26A (the surface facing the seated passenger) and the surface of the third skin material 26C (the surface facing the seated passenger) are in contact with each other, and the surface of the second skin material 26B ( The first skin material 26A, the second skin material 26B, the third skin material 26C, and the surface of the fourth skin material 26D are in contact with each other. The fourth skin material 26D is overlapped. Next, in a state in which the first skin material 26A, the second skin material 26B, the third skin material 26C, and the fourth skin material 26D are overlapped, the right joint portion S12 of the first skin material 26A and The left joint part S31 of the third skin material 26C is sewn in a straight line along the vertical direction, and the right joint part S22 of the second skin material 26B and the left joint part S42 of the fourth skin material 26D are sewn vertically. Sew in a straight line along the direction. Note that this process will be referred to as the third sewing process.

Next, as shown in FIG. 10, after a third sewing step, the first skin material 26A, the second skin material 26B, the third skin material 26C, and the fourth skin material 26D are developed. Note that the first skin material 26A, second skin material 26B, third skin material 26C, and fourth skin material 26D shown in FIG. 9 are as viewed from the back surface (the surface on the back pad 24 side). It becomes.

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 FIGS. 2 and 10, a recessed portion 30 is formed along the sewn portion 34 at the boundary between the first skin material 26A and the second skin material 26B. Note that the recessed portion 30 formed at the boundary between the first skin material 26A and the second skin material 26B is referred to as a first recessed portion 30A.

Further, a recessed portion 30 is formed along the sewn portion 34 at the boundary between the third skin material 26C and the fourth skin material 26D. Note that the recessed portion 30 formed at the boundary between the third skin material 26C and the fourth skin material 26D is referred to as a second recessed portion 30B.

Furthermore, a recessed portion 30 is formed along the sewn portion 34 at the boundary between the first skin material 26A and the third skin material 26C. Note that the recessed portion 30 formed at the boundary between the first skin material 26A and the third skin material 26C is referred to as a third recessed portion 30C.

Further, a recessed portion 30 is formed along the sewn portion 34 at the boundary between the second skin material 26B and the fourth skin material 26D. Note that the recessed portion 30 formed at the boundary between the second skin material 26B and the fourth skin material 26D is referred to as a 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, a portion where the first recessed portion 30A, the second recessed portion 30B, the third recessed portion 30C, and the fourth recessed portion 30D intersect, that is, the first recessed portion 30A, the second recessed portion 30B, the third recessed portion 30C, and the fourth recessed portion 30D will be referred to as a merging portion 36.

By the way, in this embodiment, the corner part at the boundary between the upper joint part S11 and the right joint part S12 of the first skin material 26A, and the boundary between the lower joint part S21 and the right joint part S22 of the second skin material 26B. corner portions at the boundary between the upper joint S32 and the left joint S31 of the third skin material 26C, and the boundary between the lower joint S41 and the left joint S42 of the fourth skin material 26D. The corner portion is removed by performing a C-plane cut. As a result, in the confluence portion 36, there is no joint between the upper joint portion S11 of the first skin material 26A and the lower joint portion S21 of the second skin material 26B by the sewing portion 34. Moreover, in the confluence part 36, there is no joining point by the sewing part 34 between the upper joint part S32 of the third skin material 26C and the lower joint part S41 of the fourth skin material 26D. Furthermore, in the merging portion 36, there is no joint between the right joint portion S12 of the first skin material 26A and the left joint portion S31 of the third skin material 26C by the sewing portion 34. Furthermore, in the confluence section 36, there is no joint between the right joint section S22 of the second skin material 26B and the left joint section S42 of the fourth skin material 26D by the sewing section 34.

(Actions and effects of this embodiment)
Next, the operation and effects of this embodiment will be explained.

As shown in FIGS. 1 and 2, the seat back 14 of the vehicle seat 10 of this embodiment includes a back cover 22 having the above-described configuration. The area surrounded by the dashed line 3 in the skin material main body 28 of the back cover 22 includes a first skin material 26A to a fourth skin material 26D. Further, the skin material main body 28 is formed with a first recessed portion 30A to a fourth recessed portion 30D that are recessed toward the back pad 24 side. Further, the first recessed portion 30A to the fourth recessed portion 30D have a merging portion 36 where they merge with each other. Here, in the confluence part 36, there is no joining point by the sewing part 34 between the upper joint part S11 of the first skin material 26A and the lower joint part S21 of the second skin material 26B. Moreover, in the confluence part 36, there is no joining point by the sewing part 34 between the upper joint part S32 of the third skin material 26C and the lower joint part S41 of the fourth skin material 26D. Furthermore, in the merging portion 36, there is no joint between the right joint portion S12 of the first skin material 26A and the left joint portion S31 of the third skin material 26C by the sewing portion 34. Furthermore, in the confluence section 36, there is no joint between the right joint section S22 of the second skin material 26B and the left joint section S42 of the fourth skin material 26D by the sewing section 34. Thereby, it is possible to suppress the occurrence of wrinkles in the skin material main body 28 at the confluence section 36 where the first to fourth concave portions 30A to 30D merge due to the tension of the sewn portion 34. Thereby, it is possible to suppress the appearance quality of the back cover 22 from being impaired by wrinkles.

In addition, in the present embodiment described above, by removing the corner portions of the first skin material 26A to the fourth skin material 26D by C-plane cutting, there is no joint by the sewing part 34 at the confluence part 36. Although the example has been described, the present invention is not limited thereto. For example, the structure may be similar to the back cover 22 of a vehicle seat according to a second embodiment described below.

FIG. 11 shows a diagram corresponding to FIG. 3 showing the first skin material 26A to the fourth skin material 26D of the back cover 22 of the vehicle seat according to the second embodiment. As shown in this figure, the first skin material 26A to the fourth skin material 26D of this embodiment do not have the above-mentioned C-plane cut. In addition, in the back cover 22 of the vehicle seat of the second embodiment, the members and parts corresponding to the back cover 22 of the vehicle seat 10 of the first embodiment described above include the back cover of the vehicle seat 10 of the first embodiment. The same reference numerals as the members and portions corresponding to the cover 22 are given.

In the second embodiment, as shown in FIG. 12, the upper joint S11 of the first skin material 26A and the lower joint S21 of the second skin material 26B are sewn in a straight line along the left-right direction. When doing so, the sewn portion 34 is not formed at a location 38 corresponding to the merging portion 36. Similarly, when sewing the upper joint S32 of the third skin material 26C and the lower joint S41 of the fourth skin material 26D in a straight line along the left-right direction, Sewing portions 34 are not formed at locations 38. Furthermore, when sewing the right joint part S12 of the first skin material 26A and the left joint part S31 of the third skin material 26C in a straight line along the vertical direction, sewing is performed at a location 38 corresponding to the confluence part 36. The portion 34 is not formed. Further, when sewing the right joint part S22 of the second skin material 26B and the left joint part S42 of the fourth skin material 26D in a straight line along the up-down direction, sewing is performed at a location 38 corresponding to the confluence part 36. The portion 34 is not formed. In addition, the part indicated by the reference numeral 34A in the sewing part 34 is a part where reverse stitching has been performed.

Also in the configuration of the second embodiment described above, it is possible to create a state in which there is no joining part by the sewing part 34 in the merging part 36. Thereby, it is possible to suppress the occurrence of wrinkles in the skin material main body 28 at the confluence section 36 where the first to fourth concave portions 30A to 30D merge due to the tension of the sewn portion 34.

Furthermore, in the example described above, an example is described in which the first recessed portion 30A, the second recessed portion 30B, the third recessed portion 30C, and the fourth recessed portion 30D have a confluence portion 36 that intersects in a cross shape. However, the present invention is not limited thereto. 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 have a confluence portion 36 where they intersect in a T-shape. Good too.

13 shows a seat back 14 of a vehicle seat according to a third embodiment, and FIG. 14 shows a first skin material 26A to a third skin material 26C of a back cover 22. A corresponding diagram is shown. In addition, in the back cover 22 of the vehicle seat of the third embodiment, the members and parts corresponding to the back cover 22 of the vehicle seat 10 of the first embodiment described above include the back cover of the vehicle seat 10 of the first embodiment. The same reference numerals as the members and portions corresponding to the cover 22 are given.

Here, FIG. 14 shows the skin material main body 28 in a portion surrounded by a dashed line 3 in FIG. The skin material main body 28 in the portion shown in FIG. 14 includes three skin materials 26. As shown in FIG. Here, the three skin materials 26 will be referred to as a first skin material 26A, a second skin material 26B, and a third skin material 26C, respectively.

As shown in FIG. 14, the end of the first skin material 26A on the second skin material 26B and third skin material 26C sides forms a right joint S12 with a seam allowance dimension of W1. There is.

Further, the end of the second skin material 26B on the first skin material 26A side is a left joint portion S23 in which the seam allowance size is set to W1. Furthermore, the end of the second skin material 26B on the third skin material 26C side forms an upper joint S24 with a seam allowance dimension set to W1. Further, a corner portion of the second skin material 26B at the boundary between the left joint portion S23 and the upper joint portion S24 is removed by performing a C-plane cut.

Further, the end of the third skin material 26C on the first skin material 26A side is a left joint portion S31 with a seam allowance dimension set to W1. Further, the end of the third skin material 26C on the second skin material 26B side forms a lower joint S33 with a seam allowance dimension set to W1. Further, a corner portion of the third skin material 26C at the boundary between the left joint portion S31 and the lower joint portion S33 is removed by performing a C-plane cut.

As shown in FIGS. 13 and 15, in the present embodiment described above, the first epidermis There is no joint between the material 26A and the second skin material 26B by the sewn portion 34. Further, in this confluence portion 36, there is no joint between the first skin material 26A and the third skin material 26C by the sewn portion 34. Further, in this merging portion 36, there is no joint between the second skin material 26B and the third skin material 26C by the sewn portion 34. In this way, in the third embodiment as well, it is possible to create a state in which there is no joint by the sewing part 34 in the confluence part 36. Thereby, it is possible to suppress the occurrence of wrinkles in the skin material main body 28 at the merging portion 36 where the first to third recessed portions 30A to 30C merge due to the tension of the sewn portion 34.

In each of the embodiments described above, 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. Further, the configuration of the present invention can also be applied to a seat cover having a merging portion 36 where more recessed portions 30 merge than in each of the above embodiments.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above, and can be implemented with various modifications other than the above without departing from the spirit thereof. Of course.

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 Skin material 26A First skin material 26B Second skin material 26C Third skin material 26D Fourth skin material 28 Skin material body 30 Recessed portion 30A First recessed portion 30B Second recessed portion 30C Third Recessed portion 30D Fourth recessed portion 34 Sewing portion 36 Merging portion

Claims (4)

A skin material main body that includes three or more skin materials and covers the seat pad;
a plurality of recessed portions formed in the skin material main body, having a merging portion where three or more recesses merge with each other, and recessed toward the seat pad side;
a sewing part that joins the skin materials arranged next to each other in a range different from the merging part;
Seat cover with. The skin material main body includes a first skin material, a second skin material, a third skin material, and a fourth skin material,
The first skin material and the second skin material are joined at the sewn portion, and the first recessed portion is provided at the boundary between the first skin material and the second skin material. formed,
The third skin material and the fourth skin material are joined at the sewn portion, and the second recessed portion is provided at the boundary between the third skin material and the fourth skin material. formed,
The first skin material and the third skin material are joined at the sewn portion, and a third recessed portion is provided at the boundary between the first skin material and the third skin material. formed,
The second skin material and the fourth skin material are joined at the sewn portion, and a fourth recessed portion is provided at the boundary between the second skin material and the fourth skin material. formed,
At the confluence of the first recessed portion, the second recessed portion, the third recessed portion, and the fourth recessed portion, the first skin material and the second skin material There is no joint by the sewing part, and there is no joint by the sewing part between the third skin material and the fourth skin material, and the first skin material and the fourth skin material are joined by the sewing part. Claim 3, wherein there is no joint between the skin material and the sewn portion, and there is no joint between the second skin material and the fourth skin material due to the sewn portion. The seat cover according to item 1. The skin material main body includes the first skin material, the second skin material, and the third skin material,
The first skin material and the second skin material are joined at the sewn portion, and the first recessed portion is provided at the boundary between the first skin material and the second skin material. formed,
The first skin material and the third skin material are joined at the sewn portion, and a second recessed portion is provided at the boundary between the first skin material and the third skin material. formed,
The second skin material and the third skin material are joined at the sewn portion, and a third recessed portion is provided at the boundary between the second skin material and the third skin material. formed,
At the confluence of the first recessed portion, the second recessed portion, and the third recessed portion, there is no joint between the first skin material and the second skin material by the sewn portion. In this state, there is no joint between the first skin material and the third skin material by the sewn portion, and there is no joint between the second skin material and the third skin material. The seat cover according to claim 1, wherein there is no joint by the sewn portion. 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 constituting a part of the seat body;
The seat pad is composed of three or more skin materials, and has a skin material main body that covers the seat pad, and a merging part formed in the skin material main body and where the three or more skin materials merge with each other. A seat cover having a plurality of recessed portions recessed to the side, and a sewn portion that joins the skin materials disposed adjacent to each other in the recessed portion in a range different from the merging portion;
A vehicle seat equipped with