Seat surface material and seat

Abstract

To provide a seat skin material that can prevent wrinkles from occurring, and the like.SOLUTION: A skin material 1 includes: a surface cloth layer 2 made of natural leather; a resin foam layer 3 fixed to the rear surface of the surface cloth layer 2; and a rear cloth layer 4 provided on the rear surface of the resin foam layer 3. Slits 5 are formed in the rear cloth layer 4.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a seat skin material and a seat.

Background Art

[0002] As a conventional seat, for example, there is a vehicle seat in which the seating side of a seat pad is covered with a skin material (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, when the skin material contains natural leather, wrinkles may occur on the skin material.

[0005] An object of the present invention is to provide a seat skin material capable of suppressing the occurrence of wrinkles, and a seat in which the occurrence of wrinkles is suppressed.

Means for Solving the Problems

[0006] The seat skin material according to the present invention includes a surface layer made of natural leather, a resin foam layer fixed to the back surface of the surface layer, and a lining layer provided on the back surface of the resin foam layer. Slits are formed in the lining layer up to a position reaching the resin foam layer from the lining layer. The seat skin material according to the present invention can suppress the occurrence of wrinkles.

[0007] The seat skin material according to the present invention includes a surface layer made of natural leather, a resin foam layer fixed to the back surface of the surface layer, and a lining layer provided on the back surface of the resin foam layer. Holes are formed in the lining layer up to positions reaching the resin foam layer from the lining layer. The seat skin material according to the present invention can suppress the generation of wrinkles.

[0008] The seat skin material according to the present invention includes a surface layer made of natural leather, a resin foam layer fixed to the back surface of the surface layer, and a lining layer provided on the back surface of the resin foam layer. Slits and holes are formed in the lining layer up to positions reaching the resin foam layer from the lining layer. The seat skin material according to the present invention can suppress the generation of wrinkles.

[0009] In the seat skin material according to the present invention, the depth of the slit or the hole can be set to a depth that does not penetrate the resin foam layer. In this case, a state in which the surface layer and the resin foam layer are firmly fixed can be maintained.

[0010] In the seat skin material according to the present invention, the depth of the slit or the hole can be set to a depth that penetrates the resin foam layer but does not reach the surface layer. In this case, the flexibility of the skin material can be enhanced.

[0011] The seat according to the present invention includes any one of the above skin materials. According to the seat of the present invention, the generation of wrinkles is suppressed.

Effects of the Invention

[0012] According to the skin material of the present invention, a seat skin material capable of suppressing the generation of wrinkles can be provided. Further, according to the seat of the present invention, a seat with suppressed generation of wrinkles can be provided.

Brief Description of the Drawings

[0013]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Mode for Carrying Out the Invention

[0014] Hereinafter, a skin material for a seat, a seat, and a method for manufacturing a seat according to one embodiment of the present invention will be described.

[0015] In the present embodiment, the skin material (skin material for a seat) 1 includes a surface layer 2 made of natural leather, a resin foam layer 3 fixed to the back surface of the surface layer 2, and a backing layer 4 provided on the back surface of the resin foam layer 3. At least one of a slit 5 and a hole 6 is formed in the backing layer 4 up to a position reaching the resin foam layer 3 from the backing layer 4. In the following description, "up", "down", "left", "right", "front", and "rear" refer to the directions when viewed from a seated person sitting on the seat.

[0016] In FIG. 1, reference numeral 10 is a seat according to one embodiment of the present invention. The seat 10 can be any type of seat using natural leather. In the present embodiment, the seat 10 is configured as a vehicle seat (seat for a vehicle).

[0017] Referring to FIG. 1, the seat 10 includes a skin material 1 and a seat pad 20. The seat pad 20 is formed of a resin foam. Examples of the molding material for obtaining the resin foam include flexible foam polyurethane in which a foaming agent is mixed with a flexible polyurethane resin. However, according to the present invention, various foamed resins can be used as the molding material. In the present embodiment, the seating side of the seat pad 20 is covered with the skin material 1. Further, the seat 10 can include a frame (not shown) installed on the back side of the seat pad 20.

[0018] The seat 10 includes a seat cushion 11 and a seat back 12. Further, in the present embodiment, as shown in FIG. 1, the seat 10 can further include a headrest 13 for supporting the head of the seated person.

[0019] Similarly, the seat pad 20 includes a cushion pad 21 and a back pad 22. Further, in the present embodiment, as shown in FIG. 1, the seat pad 20 can include a head pad 23.

[0020] In the seat cushion 11, the seating side of the cushion pad 21 is covered with the skin material 1. In the present embodiment, the cushion pad 21 includes a main pad portion 211 configured to support the buttocks and thighs of the seated person from below, and a pair of side pad portions 212 located on both the left and right sides of the main pad portion 211, rising upward from the main pad portion 211, and configured to support the seated person from both the left and right sides. Further, in the present embodiment, the main pad portion 211 includes a lower leg portion 211a configured to support the thighs of the seated person from below, and a lower buttocks portion 211b located posterior to the lower leg portion 211a and configured to support the buttocks of the seated person from below. FIG. 2 shows a cross-section taken along line A-A of FIG. 1.

[0021] Also, referring to FIG. 1, in the seat back 12, the seating side of the back pad 22 is covered by the skin material 1. The back pad 22 includes a main pad portion 221 configured to support the back of the seated person from the rear side, and a pair of side pad portions 222 located on both the left and right sides of the main pad portion 221, rising upward to the front side of the main pad portion 221, and configured to support the seated person from both the left and right sides. Further, in the present embodiment, the main pad portion 221 includes a lumbar portion 221a configured to support the lumbar region of the seated person from the rear side, and a shoulder portion 221b located above the lumbar portion 221a and configured to support the shoulders of the seated person from the rear side.

[0022] Furthermore, in the present embodiment, in the headrest 13, the seating side of the head pad 23 is also covered by the skin material 1.

[0023] FIG. 3 is a plan view schematically showing the skin material 1 from the surface layer 2. In FIG. 3, reference numeral 2 denotes the surface layer. The surface layer 2 is the surface layer facing the seated person when the skin material 1 is configured as a part of the seat 10. The surface layer 2 is formed of natural leather (genuine leather). Examples of natural leather include cowhide, horsehide, sheepskin, deerskin, ostrich leather, pigskin, and goatskin.

[0024] Next, FIG. 4 is a plan view schematically showing the skin material 1 from the lining layer 4. In FIG. 4, reference numeral 4 denotes the surface layer. The lining layer 4 is the back surface layer facing the seat body side (in the present embodiment, the seat pad 20 side) when the skin material 1 is configured as a part of the seat 10. In the present embodiment, the lining layer 4 is formed of a lining base fabric. Examples of the lining base fabric include woven or non-woven fabrics formed of resins such as nylon.

[0025] Referring to FIG. 4, in the present embodiment, slits 5 and holes 6 are formed in the lining layer 4.

[0026] FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4. Referring to FIG. 5, the skin material 1 includes a surface layer 2 made of natural leather, a resin foam layer 3 fixed to the back surface of the surface layer 2, and a lining layer 4 provided on the back surface of the resin foam layer 3.

[0027] The resin foam layer 3 is formed of a resin foam. Examples of the molding material for obtaining the resin foam include soft foamed polyurethane in which a foaming agent is mixed with a soft polyurethane resin. However, according to the present invention, various foamed resins can be used as the molding material. In the present embodiment, for the sake of simplifying the structure, the lining layer 4 is fixed to the resin foam layer 3 by being formed on the resin foam layer 3. However, according to the present invention, other layers such as an adhesive layer can be interposed between the resin foam layer 3 and the lining layer 4.

[0028] The surface layer 2 is fixed to the resin foam layer 3. The surface layer 2 can be fixed, for example, by hot melt adhesion. Examples of the hot melt adhesive include thermoplastic resins, thermosetting resins, moisture-curing resins, and the like. Further, the surface layer 2 can be fixed by a non-woven fabric (for example, a non-woven cloth) impregnated with a hot melt adhesive.

[0029] In the present embodiment, the depth D5 of the slit 5 is a depth that does not penetrate the resin foam layer 3. In this case, a large fixing area between the surface layer 2 and the resin foam layer 3 can be ensured. Therefore, according to the present embodiment, a state in which the surface layer 2 and the resin foam layer 3 are firmly fixed can be maintained.

[0030] Referring to FIG. 5, the depth D5 of the slit 5 is the depth from the back surface (the back surface of the lining layer 4) 1b of the skin material 1 toward the front surface (the front surface of the surface layer 2) 1a of the skin material 1. In the present embodiment, the depth D5 of the slit 5 is shallower than the depth from the back surface 1b of the skin material 1 to the back surface 2b of the surface layer 2. In other words, the dimension of the depth D5 of the slit 5 is shorter than the dimension of the thickness T34 of the resin foam layer 3 and the lining layer 4. Here, the thickness T34 is the thickness between the back surface 1b of the skin material 1 and the back surface 2b of the surface layer 2.

[0031] The thickness T3 of the resin foam layer 3 can be, for example, 5 mm to 10 mm. Further, the thickness T4 of the lining layer 4 can be, for example, 0.2 mm. Also, the thickness T2 of the surface layer 2 can be, for example, 0.6 mm to 1.1 mm. Furthermore, the depth D5 of the slit 5 can be, for example, 0.1 mm to 1.2 mm. For example, when T2 = 1.1 mm, T3 = 5 mm, and T4 = 0.2 mm, the depth D5 of the slit 5 can be 1.2 mm. Also, the interval I5 between the slits 5 can be, for example, I5 = 1 cm. Here, the interval I5 is the interval between the slits 5 in a direction orthogonal to the extending direction of the slit 5 (the extending direction of the slit 5) in the plan view of the skin material 1. In the drawing, the interval I5 is represented by a pitch interval starting from the center of the width W5 of the slit 5.

[0032] The depth D5 of the slit 5 can be set as appropriate. For example, the depth D5 can be set in relation to the thickness T34. In the following description, for the sake of simplicity, it is exemplified that the thickness T34 is the sum of the thickness T3 of the resin foam layer 3 and the thickness T4 of the lining layer 4. For example, when the depth D5 of the slit 5 is 0.3 mm and the thickness T34 of the resin foam layer 3 and the lining layer 4 is 5.2 mm (T3 = 5, T4 = 0.2), D5:T34 = 0.3:5.2 ≒ 1:17.3. When the depth D5 of the slit 5 is 1.2 mm, D5:T34 = 1.2:5.2 ≒ 1:4.3. Also, when the depth D5 of the slit 5 is 0.3 mm and the thickness T34 of the resin foam layer 3 and the lining layer 4 is 10.2 mm (T3 = 10, T4 = 0.2), D5:T34 = 0.3:10.2 ≒ 1:34. When the depth D5 of the slit 5 is 1.2 mm, D5:T34 = 1.2:10.2 ≒ 1:8.5. Similarly, the depth D5 can be set in relation to the thickness T2 of the surface layer 2. For example, when the depth D5 of the slit 5 is 0.3 mm and the thickness T2 of the surface layer 2 is 1.1 mm, D5:T2 = 0.3:1.1 ≒ 1:3.6. Also, when the depth D5 of the slit 5 is 0.3 mm and the thickness T2 of the surface layer 2 is 0.6 mm, D5:T2 = 0.3:0.6 ≒ 1:2. When the depth D of the slit 5 is 1.2, D5:T2 = 1.2:0.6 ≒ 2:1. Here, the thickness T2 of the surface layer 2 is the thickness between the surface 1a of the skin material 1 and the back surface 2b of the surface layer 2. Also, the depth D5 can be set in relation to the thickness T1 of the skin material 1. Here, the thickness T1 of the skin material 1 is the thickness between the back surface 1b of the skin material 1 and the surface 1a of the skin material 1.

[0033] Furthermore, the width W5 of the slit 5 can also be set as appropriate. For example, the dimension of the width W5 of the slit 5 can be set according to the dimensions, shape, area, etc. of the skin material 1. Also, referring to FIG. 4, in plan view, the length L5 of the slit 5 can also be set as appropriate. For example, the dimension of the length L5 of the slit 5 can also be set according to the dimensions, shape, area, etc. of the skin material 1. Furthermore, the direction of the extension of the slit 5 can also be set as appropriate according to the dimensions, shape, area, etc. of the skin material 1. Furthermore, at least one slit 5 can be formed on one skin material 1. When the slit 5 includes a plurality of slits, the arrangement direction and interval of the slit 5 can also be set according to the dimensions, shape, area, etc. of the skin material 1.

[0034] FIG. 6 is a cross-sectional view taken along the line C-C of FIG. 4. In the present embodiment, the depth D6 of the hole 6 penetrates the resin foam layer 3 but does not reach the surface layer 2. In this case, the layers other than the surface layer 2 (the laminated portion of the resin foam layer 3 and the backing layer 4) are divided in the thickness direction of the skin material 1. Therefore, according to the present embodiment, the flexibility of the skin material 1 can be enhanced.

[0035] Referring to FIG. 6, the depth D6 of the hole 6 is the depth from the back surface 1b of the skin material 1 to the back surface 2b of the surface layer 2. In other words, the dimension of the depth D6 of the hole 6 is equal to the dimension of the thickness T34 of the resin foam layer 3 and the backing layer 4. However, the depth D6 of the hole 6 can be set to a depth that does not penetrate the resin foam layer 3 as shown in FIG. 5. Also, the depth D5 of the slit 5 can be set to a depth that penetrates the resin foam layer 3 but does not reach the surface layer 2 as shown in FIG. 6.

[0036] Furthermore, the width of the hole 6 (e.g., diameter, major axis width, minor axis width, etc.) W6 can also be set as appropriate. For example, the dimension of the width W6 of the hole 6 can be set according to the dimension, shape, area, etc. of the skin material 1. Also, referring to FIG. 4, in a plan view, the shape of the hole 6 can also be set as appropriate. For example, the hole 6 can be various shaped holes such as a circular round hole, an elongated hole such as an ellipse, or a polygonal hole such as a rhombus. For example, when the hole 6 is a round hole, the hole diameter (diameter) of the hole 6 can be 1 mm to 10 mm. When the hole diameter of the hole 6 is 10 mm or less, it is expected to maintain the feel of the skin material 1 even after being attached to the seat body. Also, at least one hole 6 can be formed for one skin material 1. When the hole 6 includes a plurality of holes, the arrangement direction and interval of the holes 6 can also be set according to the dimension, shape, area, etc. of the skin material 1.

[0037] Also, referring to FIG. 4, the hole 6 can take at least either the case of being a circular round hole or the case of being an elongated hole such as an ellipse. The slit 5 can also take at least either the case of being formed so as to longitudinally (transversely) cut the lining layer 4 in a plan view as shown in FIG. 4 or the case of being intermittently formed with respect to the lining layer 4. Furthermore, at least one of the slit 5 and the hole 6 can be selected.

[0038] When a conventional skin material was attached to a seat body (e.g., seat pad 20), wrinkles sometimes occurred in the surface layer 2 of the skin material 1 thereafter. Such wrinkles occur, for example, in a fixed portion such as an outer edge portion of the surface layer 2 fixed to the seat body or in a central portion of the surface layer 2 surrounded by the fixed portion.

[0039] On the other hand, as in this embodiment, if the slit 5 is formed in the lining layer 4 up to a position reaching from the lining layer 4 to the resin foam layer 3, the occurrence of wrinkles after being attached to a seat body such as the seat pad 20 can be suppressed. The slit 5 can be formed by performing cutting processing such as slit processing on the lining layer 4 and the resin foam layer 3, for example, before fixing the surface layer 2 to the resin foam layer 3. In this embodiment, the slit 5 is a cutting slit.

[0040] Also, as in the present embodiment, even if the back layer 4 forms holes 6 up to a position reaching the resin foam layer 3 from the back layer 4, the generation of wrinkles can be suppressed after the seat body such as the seat pad 20 is attached. The holes 6 can be formed by performing hole-making processing such as punching on the back layer 4 and the resin foam layer 3, for example, before fixing the surface layer 2 to the resin foam layer 3. In the present embodiment, the holes 6 are punching holes.

[0041] Furthermore, as in the present embodiment, even if the back layer 4 forms slits 5 and holes 6 up to a position reaching the resin foam layer 3 from the back layer 4, the generation of wrinkles can be suppressed after the seat body such as the seat pad 20 is attached.

[0042] The positions, densities, numbers, etc. of the slits 5 and the holes 6 can be set as appropriate.

[0043] Also, the seat 10 includes the skin material 1. Therefore, according to the seat 10 according to the present embodiment, a seat with suppressed generation of wrinkles is obtained.

[0044] Next, as a method for manufacturing a seat according to the present embodiment, a method for manufacturing a seat for manufacturing a seat 10 including the skin material 1 will be described.

[0045] The method for manufacturing a seat according to the present embodiment includes attaching the above-described skin material 1 to the seat body. According to the method for manufacturing a seat according to the present embodiment, a seat 10 with suppressed generation of wrinkles can be easily obtained.

[0046] In the present embodiment, the seat pad 20 is prepared as the seat body. Next, by using the same method as in the prior art, the seat pad 20 is covered with the skin material 1. Thereby, a seat 10 with suppressed generation of wrinkles can be easily obtained.

[0047] As described above, according to the skin material 1, it is possible to provide a seat skin material capable of suppressing the occurrence of wrinkles. Further, according to the seat 10, it is possible to provide a seat in which the occurrence of wrinkles is suppressed.

[0048] What has been described above is merely an example of one embodiment of the present invention, and various modifications are possible according to the claims. Furthermore, various configurations employed in this embodiment can be selectively omitted as appropriate, for example, by forming only the slit 5 in the seat skin material 1, or by forming only the hole 6 in the seat skin material 1.

Explanation of Reference Numerals

[0049] 1: Seat skin material, 2: Surface layer, 3: Resin foam layer, 4: Backing layer, 5: Slit, 6: Hole, 10: Seat, 11: Seat cushion, 12: Seat back, 13: Headrest, 20: Seat pad, 21: Cushion pad, 22: Back pad, 23: Head pad

Claims

1. A surface layer made of natural leather, A resin foam layer adhered to the back surface of the surface layer, A lining layer provided on the back surface of the resin foam layer, and it is provided with, In the lining layer, slits are formed up to a position reaching the inside of the resin foam layer from the lining layer, The slit has a width at the deepest part of the slit, a seat skin material.

2. A surface layer made of natural leather, A resin foam layer adhered to the back surface of the surface layer, A lining layer provided on the back surface of the resin foam layer, and it is provided with, In the lining layer, holes are formed up to a position reaching the inside of the resin foam layer from the lining layer, The hole has a width at the deepest part of the hole, a seat skin material.

3. A surface layer made of natural leather, A resin foam layer adhered to the back surface of the surface layer, A lining layer provided on the back surface of the resin foam layer, and it is provided with, In the lining layer, slits and holes are formed up to a position reaching the inside of the resin foam layer from the lining layer, The slit and the hole have a width at the deepest part of the slit and the hole, a seat skin material.

4. The depth of the slit or the hole is a depth that does not penetrate the resin foam layer, the seat skin material according to any one of claims 1 to 3.

5. The depth of the slit or the hole is a depth that penetrates the resin foam layer but does not reach the surface layer, the seat skin material according to any one of claims 1 to 3.

6. A seat provided with the skin material according to any one of claims 1 to 5.

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