Seat for vehicle

Abstract

To provide a seat for a vehicle where an achromatic seat cover is stretched, which enhances visibility.SOLUTION: There is provided a seat 1 for a vehicle where an achromatic seat cover 10 and a back cover 20 are stretched. In a seat cushion 2, the cushion cover 10 is formed of a first fabric 10a where a main part 2a and side parts 2b have RGB brightness 57, and a main part 13b of a stile part 13 is formed of a second fabric 10b having RGB brightness 184. In a seat back 3, the back cover 20 has a main part 3a and a side part 3b formed of a first fabric 10a, and a main part 23b of a stile part 23 is formed of a second fabric 10b.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a vehicle seat, and more particularly to a vehicle seat that has good visibility and allows passengers to get in and out of the vehicle with peace of mind. [Background technology]

[0002] Conventionally, there are known vehicle seats that are installed in vehicles such as automobiles, which have a seat cover of an achromatic color such as black, gray, etc. Patent Document 1 describes an automobile seat that has a seat cover that is entirely black. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-487 A Summary of the Invention [Problem to be solved by the invention]

[0004] The automobile seat described in the above-mentioned Patent Document 1 had a problem in that when elderly people with impaired eyesight try to sit down, they have difficulty perceiving the three-dimensional effect of the seat and are therefore unable to sit down smoothly.

[0005] In view of the above problems, an object of the present invention is to improve visibility in a vehicle seat having an achromatic seat cover installed thereon. [Means for solving the problem]

[0006] The first invention of the present invention is a vehicle seat having an achromatic seat cover installed thereon, characterized in that the brightness difference between the seating surface portion, which is the surface portion of the seat cover of a seat cushion, seat back and / or headrest that abuts against the body of a seated occupant, and the side surface portions, which are the surfaces on the sides of the seating surface portion, is set to 125 or more.

[0007] According to the first invention, when a seated occupant with impaired eyesight gets into a vehicle, the luminosity difference between the seating surface and the side surface of the seat cushion, seat back and / or headrest seat cover is set to 125 or more when looking at the vehicle seat from the side, so that the occupant can easily grasp the three-dimensional effect of the seat and can sit down smoothly. Note that the luminosity difference here refers to the luminosity difference between RGB, and the calculation method thereof will be described later.

[0008] The second invention of the present invention is characterized in that, in the above-mentioned first invention, a bead is disposed between the sitting surface portion of the seat cover and the side surface portion of the seat cover, and the brightness difference between the bead and the sitting surface portion is set to be larger than the brightness difference between the sitting surface portion and the side surface portion.

[0009] According to the second invention, the beading disposed between the seating surface portion of the seat cover and the side surface portion of the seat cover has a brightness difference with the seating surface portion that is set to be greater than the brightness difference between the seating surface portion and the side surface portion, so that visibility is high and the passenger can better grasp the three-dimensionality of the seat and sit down smoothly.

[0010] The third invention of the present invention is characterized in that, in the above-mentioned second invention, a thin strip-shaped portion of the same color as the seating surface portion of the seat cover is arranged on the side surface portion of the seat cover adjacent to the bead.

[0011] According to the third invention, the beading is sandwiched between the seating surface of the seat cover, which has a large difference in brightness, and a thin strip of the same color as the seating surface of the seat cover, so it is highly visible and the passenger can get a better grasp of the three-dimensionality of the seat and sit down smoothly.

[0012] A fourth aspect of the present invention, in the above-mentioned first aspect, is characterized in that synthetic leather having a friction coefficient greater than that of fabric is provided on shoulder portions of the left and right upper ends of the sitting surface portion of the seat back.

[0013] According to the fourth invention, in addition to the advantageous effects of the first invention, when a passenger sitting in the rear seat of the vehicle seat gets in and out of the vehicle seat, he or she can grab the shoulders of the vehicle seat and get in and out with a sense of security. [Brief description of the drawings]

[0014] [Figure 1] 1 is a perspective view of an automobile seat according to an embodiment of the present invention, which is an example in which the seat cushion and seat back are applied. [Diagram 2] This is a cross-sectional view taken along the line II-II of Fig. 1. The cushion frame and the cushion pad are omitted. [Diagram 3] This is a cross-sectional view taken along the line III-III of Fig. 1. The back frame and the back pad are omitted. [Figure 4] This is a cross-sectional view taken along the line IV-IV of Fig. 1. The cushion frame and the cushion pad are omitted. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] An automobile seat 1 according to one embodiment of the present invention will be described with reference to Figures 1 to 4. In the following description, the explanation regarding directions will be based on the up, down, front, back, left and right directions shown in Figure 1. Here, the up, down, front, back, left and right directions are defined based on the automobile seat 1 when the automobile seat 1 is attached to an automobile floor F. Here, the automobile seat 1 corresponds to the "vehicle seat" in the claims.

[0016] As shown in FIG. 1, an automobile seat 1 has a seat cushion 2 that supports the buttocks and thighs of a seated occupant, a seat back 3 that supports the waist and back of the seated occupant, and a headrest 4 that supports the head of the seated occupant. The seat cushion 2 has a cushion frame (not shown) that forms a skeleton, a cushion pad (not shown) that serves as a cushioning material and is placed on the cushion frame, and a cushion cover 10 that serves as a skin material that covers the cushion pad. The cushion pad is an elastic body formed from a urethane foam resin, and its outer shape determines the outer shape of the seat cushion 2. The seat back 3 has a back frame (not shown) that forms a skeleton, a back pad (not shown) that serves as a cushioning material and is placed on the back frame, and a back cover 20 that serves as a skin material that covers the back pad. The back pad is an elastic body formed from a urethane foam resin, and its outer shape determines the outer shape of the seat back 3. The headrest 4 has a headrest frame (not shown) that forms the skeleton, a headrest pad (not shown) that serves as a cushioning material that is placed over the headrest frame, and a headrest cover 40 that serves as a skin material that covers the headrest pad. The headrest pad is an elastic body made of urethane foam resin, and its outer shape determines the outer shape of the headrest 4. Here, the cushion cover 10, the back cover 20, and the headrest cover 40 each correspond to a "seat cover" in the claims.

[0017] As shown in Figs. 1 and 2, the seat cushion 2 has a main part 2a in the center in the left-right direction and a pair of left and right side parts 2b located on the left and right sides of the main part 2a. The main part 2a has an upper surface formed in a substantially flat shape in the horizontal direction, and is a part that supports the thighs and buttocks of a seated occupant from below. The pair of left and right side parts 2b has an upper surface formed in a shape that protrudes upward from the upper surface of the main part 2a, and is a part that supports the thighs and buttocks of a seated occupant from the sides. The cushion cover 10 is formed by sewing together a plurality of pieces into one piece, and has a main cover part 11 corresponding to the upper surface of the main part 2a, a side cover part 12 corresponding to the upper surface of the side part 2b, and a gusset part 13 corresponding to the left and right side surfaces of the side part 2b. A bead 14 is provided between the side cover part 12 and the gusset part 13. Here, the main cover portion 11 and the side cover portion 12 correspond to the "seating surface portion" in the claims, and the lining portion 13 corresponds to the "side surface portion" in the claims.

[0018] The main cover part 11 and the side cover part 12 are formed of the first fabric 10a, which is a fabric of the same achromatic color with an RGB value of 57. The hem part 13 is connected to the side cover part 12 via the piping 14, and has a narrow strip part 13a along the piping 14 and a wide main part 13b other than the strip part 13a. The strip part 13a is formed of the first fabric 10a, and the main part 13b is formed of the second fabric 10b, which is a fabric of the same achromatic color with an RGB value of 184. The piping 14 is formed by covering a resin core material with a third fabric 10c, which is achromatic with an RGB value of 192. It is the third fabric 10c that can be seen from the outside. The side cover part 12 and the strip part 13a of the hem part 13 are connected by sewing with a first sewing thread 15 via the piping 14. The belt-like portion 13a and the main portion 13b of the hem portion 13 are connected by sewing with a second sewing thread 16. Here, the belt-like portion 13a corresponds to the "thin belt-like portion" in the claims.

[0019] Here, RGB brightness will be explained. Each color is expressed by a combination of R (red), G (green), and B (blue-purple) values, each of which is expressed by a number between 0 and 255. The RGB values ​​are calculated by substituting each of these RGB values ​​into the formula {(R×299)+(G×587)+(B×114)}÷1000. The World Wide Web Consortium (W3C), a standardization organization established to promote the standardization of various technologies used on the World Wide Web, recommends that a brightness difference of 125 or more between the RGB brightness values ​​of the obtained colors provides good contrast and makes the colors easier to see. Specifically, the fabric constituting the main cover section 11 and the side cover section 12 was measured with a spectrophotometer (CM-700d / CM-600d) manufactured by Konica Minolta, Inc., and the color code was converted from the L*a*b* color space to obtain the RGB brightness value.

[0020] The main cover 11 and the side cover 12, which are the seating surface portions that come into contact with the body of the seated occupant, are formed by the first fabric 10a having an RGB brightness of 57, and the main portion 13b of the gusset portion 13 located on the left and right sides of the seating surface portion is formed by the second fabric 10b. The brightness difference between the RGB brightness of the first fabric 10a and the RGB brightness of the main portion 13b of the gusset portion 13 is 127, which is greater than 125. This provides good contrast and is easy to see, making it easy to grasp the three-dimensional effect of the seat and allowing the occupant to sit smoothly. The welt 14 is formed by being covered by the achromatic third fabric 10c having an RGB brightness of 192. The brightness difference between the RGB brightness of the first fabric 10a and the RGB brightness of the third fabric 10c is 135, which is even greater than 125. This provides even better contrast and is easy to see, making it easy to grasp the three-dimensional effect of the automobile seat 1 and allowing the occupant to sit smoothly. Furthermore, the beading 14, which has an RGB brightness of 192, is sandwiched between the side cover portion 12, which has an RGB brightness of 57, and the strip portion 13a of the lining portion 13, which has an RGB brightness of 57, thereby further improving visibility.

[0021] As shown in FIG. 1 and FIG. 3, the seat back 3 has a main part 3a in the center in the left-right direction and a pair of left and right side parts 3b located on the left and right sides of the main part 3a. The main part 3a has a front surface formed in a plane shape that is approximately perpendicular to the horizontal direction, and is a part that supports the waist and back of a seated occupant from behind. The pair of left and right side parts 3b has a front surface formed in a shape that protrudes forward from the front surface of the main part 3a, and is a part that supports the waist and back of a seated occupant from the sides. The back cover 20 is formed by sewing together a plurality of pieces and integrating them, and has a main cover part 21 corresponding to the front surface of the main part 3a, a side cover part 22 corresponding to the front surface of the side part 3b, and a gusset part 23 corresponding to the left and right side surfaces of the side part 3b. A bead 24 is provided between the side cover part 22 and the gusset part 23. Here, the main cover portion 21 and the side cover portion 22 correspond to the "seating surface portion" in the claims, and the lining portion 23 corresponds to the "side surface portion" in the claims.

[0022] The main cover part 21 is formed by the first fabric 10a. The side cover part 22 has an upper end side part 22a formed by achromatic synthetic leather 10d with an RGB brightness of 57, and the part other than the upper end side part 22a is formed by the first fabric 10a. The vertical dimension of the upper end side part 22a is set to be approximately equal to the dimension of the palm. The gusset part 23 is connected to the side cover part 22 via the piping 24, and has a narrow area band-shaped part 23a along the piping 24 and a wide area main part 23b other than the band-shaped part 23a. The band-shaped part 23a is formed by the first fabric 10a, and the main part 23b is formed by the second fabric 10b. The piping 24 is formed by covering a resin core material with the third fabric 10c. It is the third fabric 10c that can be seen from the outside. The side cover portion 22 and the belt-like portion 23a of the hem portion 23 are connected by sewing with a third sewing thread 25 via a beading 24. The belt-like portion 23a and the main portion 23b of the hem portion 23 are connected by sewing with a fourth sewing thread 26. Here, the belt-like portion 23a corresponds to the "thin belt-like portion" in the claims.

[0023] The main cover 21 and the side cover 22, which are the seating surface portions that come into contact with the body of the seated occupant, are formed of the first fabric 10a with an RGB brightness of 57 and the synthetic leather 10d with an RGB brightness of 57, and the main portion 23b of the gusset portion 23 located on the left and right sides of the seating surface portion is formed of the second fabric 10b. The brightness difference between the RGB brightness of the first fabric 10a and the RGB brightness of the main portion 23b of the gusset portion 23 is 127, which is greater than 125. This provides good contrast and is easy to see, making it easy to grasp the three-dimensional effect of the automobile seat 1 and to sit smoothly. The welt 24 is covered and formed by the achromatic third fabric 10c with an RGB brightness of 192. The brightness difference between the RGB brightness of the first fabric 10a and the RGB brightness of the third fabric 10c is 135, which is even greater than 125. This improves the contrast and makes it easier to see, making it easier to grasp the three-dimensional effect of the seat and allowing the occupant to sit down smoothly. Furthermore, the bead 14, which has an RGB brightness of 192, is sandwiched between the side cover portion 12, which has an RGB brightness of 57, and the band-shaped portion 23a of the seatback portion 23, which also has an RGB brightness of 57, thereby further improving visibility.

[0024] As shown in Figs. 1 and 4, the upper end side portion 22a of the side cover portion 22 in the seat back 3 is formed of synthetic leather 10d. The synthetic leather 10d has a large friction coefficient and is less slippery than fabric, and has three sewing lines 27 extending parallel to each other in a generally left-right direction, four sets on each side. This allows physically weak people such as elderly people to stand up or sit down with a sense of security when getting on or off the rear seat of the car seat 1 by placing their hands on the shoulders of the car seat 1. In particular, the formation of four sets on each side of three sewing lines 27 extending parallel to each other in a generally left-right direction forms unevenness that makes it easy to place fingertips on, allowing the shoulders of the car seat 1 to be grasped more accurately. Here, the upper end side portion 22a corresponds to the "shoulders" in the claims.

[0025] Although specific embodiments have been described above, the present invention is not limited to those external appearances and configurations, and various modifications, additions, and deletions are possible without departing from the spirit of the present invention. For example, the following can be mentioned.

[0026] 1. In the above embodiment, as shown in Fig. 1, the headrest 4 is configured such that the entire headrest cover 40, including the front portion 4a which is the seating surface and the side portions 4b which are the side surfaces, are formed from the first fabric 10a. However, this is not limited thereto, and the headrest cover 40 of the front portion 4a may be formed from the first fabric 10a, and the headrest cover 40 of the side portions 4b may be formed from the second fabric 10b. This can further improve the visibility of the automobile seat 1.

[0027] 2. In the above embodiment, in the seat cushion 2, the main portion 2a and the side portion 2b are formed of the first fabric 10a whose RGB lightness is 57, and the main portion 13b of the lining portion 13 is formed of the second fabric 10b whose RGB lightness is 184. However, this is not limited to the above, and the main portion 2a and the side portion 2b may be formed of a fabric whose RGB lightness is higher than that of the main portion 13b of the lining portion 13. The same can be said about the seat back 3 and the headrest 4.

[0028] 3. In the above embodiment, the present invention is applied to an automobile seat 1, but it may also be applied to seats for airplanes, ships, railway cars, etc. [Explanation of symbols]

[0029] 1. Car seats (vehicle seats) 2 Seat cushion 3 Seat back 4 Headrest 10 Cushion cover (seat cover) 10a 1st Fabric 10b 2nd Fabric 10c 3rd Fabric 10d synthetic leather 11 Main cover part (seating surface part) 12 Side cover part (seating surface part) 13 Kamichi section (side surface) 13a Belt-shaped part (thin belt-shaped part) 13b Main part 14 Beading 20 Back cover (seat cover) 21 Main cover part (seating surface part) 22 Side cover part (seating surface part) 22a Upper side (shoulder) 23 Kamichi section (side surface) 23a Belt-shaped part (thin belt-shaped part) 23b Main part 24 Beading 40 Headrest cover (seat cover)

Claims

1. A vehicle seat having a neutral color seat cover attached thereto, A vehicle seat in which the brightness difference between a seating surface portion, which is a surface portion of the seat cushion, seat back and / or headrest in the seat cover that contacts the body of a seated occupant, and a side surface portion, which is a surface portion on the side of the seating surface portion, is set to 125 or more.

2. In claim 1, A bead is disposed between the seating surface of the seat cover and the side surface of the seat cover, The vehicle seat is configured such that the difference in brightness between the bead and the seating surface is greater than the difference in brightness between the seating surface and the side surfaces.

3. In claim 2, The vehicle seat, wherein a thin strip-shaped portion having the same color as the sitting surface portion of the seat cover is disposed on the side surface portion of the seat cover adjacent to the bead.

4. In claim 1, The vehicle seat has synthetic leather having a friction coefficient greater than that of fabric arranged on the shoulders of the upper left and right ends of the seating surface of the seat back.

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