Vehicle seats

Abstract

To provide a vehicle seat in which an opening width of a pocket part can be large and which is convenient to use.SOLUTION: A vehicle seat (ST) includes a seat back which has a skin base part (61) which covers an upper part and upper parts of a left side part and a right side part connected to the upper part and a pocket part (M) arranged on a rear surface. The pocket part (M) has: an opening (M5) extending on a rear surface in a horizontal direction; and a bag-like housing part (M6) which extends downward inside the opening (M5) and has a width of a bottom (M3) narrower than the opening (M5). Positions of a left end (M5L) and a right end (M5R) of the opening (M5) are each in an intermediate position of the skin base part (61).SELECTED DRAWING: Figure 2

Description

【Technical Field】 【0001】 The present invention relates to a vehicle seat. To 【Background Art】 【0002】 Patent Document 1 describes a vehicle seat having a pocket portion on the rear surface of a seat back. The pocket portion described in Patent Document 1 has a stitching portion in which an upper rear piece and a lower rear piece are stitched to the outer skins on both left and right sides of an opening portion substantially in a straight line with the opening portion. Thereby, the force applied to the pocket portion is supported by the stitching portion of the outer skin, and the strength of the pocket portion is improved. 【Prior Art Documents】 【Patent Documents】 【0003】 【Patent Document 1】 Japanese Patent No. 5251426 【Summary of the Invention】 【Problems to be Solved by the Invention】 【0004】 The pocket structure of the vehicle seat described in Patent Document 1 has a stitching portion where the upper and lower outer skins are stitched on both left and right sides of the opening portion. Therefore, it is difficult to increase the opening width of the pocket portion, and improvement is desired in terms of usability. 【0005】 To To Therefore, the problem to be solved by the present invention is to provide a vehicle seat in which the opening width of the pocket portion can be increased and the usability is good. 【Means for Solving the Problems】 【0006】 In order to solve the above problems, the present invention has the following configuration. 1) An outer skin base that is an outer skin covering an upper portion and upper portions of a left side portion and a right side portion connected to the upper portion and, ​The dorsal epidermis, which forms the skin from the center to the lower part of the posterior surface, The top The base of the epidermis At the basic suture site Sutured The bottom A pocket epidermal portion sutured to the dorsal portion of the epidermis and forming a part of the epidermis on the posterior side, Equipped with a seat back, The aforementioned pocket surface portion is The rear surface has an opening that extends in the left-right direction, and a bag-shaped storage section that extends downward inside the opening and has a bottom width narrower than the opening. The positions of the left and right ends of the opening are respectively Basic suture It is a vehicle seat located in the middle position. 2) The pocket surface portion is, A first skin member having left and right edges connected to the skin base and a lower edge connected to the skin back, A first inner member connected to the first outer skin member so as to extend downward, The upper edge is at the base of the epidermis At the aforementioned basic suture The connected second skin member, A second inner member is connected to the lower edge of the second outer layer member so as to extend downward, It has, The opening is formed between the first skin member and the second skin member, with the first skin member positioned outside the second skin member. The aforementioned storage section is a vehicle seat according to claim 1, wherein the edge of the first inner member and the peripheral edge of the second inner member are sewn together except for the top to form a bag shape. 3) The vehicle seat according to 2), wherein the width of the bottom of the storage compartment is narrower than the width of the opening. 4) The vehicle seat according to 2) or 3), wherein the upper end position of the first surface member is lower than the upper end position of the second surface member. [Effects of the Invention] 【0007】 According to the present invention, the opening width can be made larger, resulting in improved usability. [Brief explanation of the drawing] 【0008】 [Figure 1] FIG. 1 is a perspective view of a vehicle seat ST equipped with a pocket structure PK, which is an example of a pocket structure according to an embodiment of the present invention, as seen from obliquely above and to the left rear. [Figure 2] FIG. 2 is a rear view showing the pocket structure PK of the vehicle seat ST. [Figure 3] FIG. 3 is a cross-sectional view taken at the S3-S3 position in the pocket structure PK of FIG. 2. [Figure 4A] FIG. 4A is a plan view of the first skin member 11 of the pocket structure PK. [Figure 4B] FIG. 4B is a plan view of the second skin member 12 of the pocket structure PK. [Figure 4C] FIG. 4C is a plan view of the first inner member 13 of the pocket structure PK. [Figure 4D] FIG. 4D is a plan view of the second inner member 14 of the pocket structure PK. [Figure 5A] FIG. 5A is a plan view of the first seam body T1, which is an intermediate seam body in the formation process of the pocket structure PK. [Figure 5B] FIG. 5B is a cross-sectional view taken at the S5B-S5B position in FIG. 5A. [Figure 6A] FIG. 6A is a plan view of the second seam body T2, which is an intermediate seam body in the formation process of the pocket structure PK. [Figure 6B] FIG. 6B is a cross-sectional view taken at the S6B-S6B position in FIG. 6A. [Figure 7] FIG. 7 is a first diagram showing the formation process of the pocket structure PK. [Figure 8A] FIG. 8A is a second diagram showing the formation process of the pocket structure PK. [Figure 8B] FIG. 8B is a cross-sectional view taken at the S8B-S8B position in FIG. 8A. [Figure 9] FIG. 9 is a third diagram showing the formation process of the pocket structure PK. [Figure 10] FIG. 10 is a plan view of the third seam body T3, which is an intermediate seam body in the formation process of the pocket structure PK. [Figure 11] Figure 11 is a front view showing the pocket epidermis 1, which is the final suture during the formation process of the pocket structure PK. [Figure 12] Figure 12 is a view of the back of the pocket surface portion 1. [Modes for carrying out the invention] 【0009】 The pocket structure of a vehicle seat according to an embodiment of the present invention will be explained using the pocket structure PK of the embodiment. In the explanation, the directions of up, down, left, right, front, and back are indicated by arrows in the corresponding figures. 【0010】 First, the configuration of the vehicle seat ST equipped with the pocket structure PK will be explained with reference to Figures 1 and 2. Figure 1 is a perspective view of the vehicle seat ST from the upper left rear. Figure 2 is a rear view showing the portion of the vehicle seat ST including the pocket structure PK. The pocket structure PK is a bag-like structure with an open top that forms a pocket section M into which objects can be inserted from above. 【0011】 As shown in Figure 1, the vehicle seat ST is a seat installed in a vehicle such as an automobile, and has a seat cushion ST1, a seat back ST2, and a headrest ST3. A pocket M is located on the rear surface of the seat back ST2. The seatback ST2 has a resin or leather surface material that covers a flexible pad (not shown), and includes a surface base 61, a surface back 62, and a pocket surface material 1. The surface base 61 is a component that forms an integrated surface covering the upper part of the seat back ST2, as well as the upper part of the left and right sides (left and right sides). The back surface portion 62 is a component that forms the surface of the rear (back) of the seat back ST2, from the center to the lower part. The pocket surface portion 1 is a sewn body that includes a member that forms the upper surface covering a portion of the rear surface of the seat back ST2. 【0012】 As shown in Figures 1 and 2, the pocket epidermal portion 1 is sutured to the epidermal base 61 with basic sutures 711 from the top to the left and right sides, the lower left portion is sutured with a lower left suture 712, and the lower right portion is sutured with a lower right suture 714. Furthermore, the pocket skin portion 1 is sutured to the dorsal skin portion 62 at the central lower suture portion 713. As a result, the epidermal base 61, the epidermal dorsal portion 62, and the pocket epidermal portion 1 are integrated as a single epidermal layer. The pocket surface portion 1 is visible from the outside of the seat back ST2, with the first surface member 11 and the second surface member 12 being visible. 【0013】 Next, the components of the pocket surface 1 will be described with reference to Figures 3 and 4A to 4D. Figure 3 is a cross-sectional view of the pocket structure PK in Figure 2 at position S3-S3, and Figures 4A to 4D are plan views of the first outer layer member 11 to the second inner layer member 14 of the pocket structure PK, respectively. The pocket structure PK comprises a first outer layer member 11, a second outer layer member 12, a first inner layer member 13, and a second inner layer member 14. 【0014】 As shown in Figure 4A, the first surface member 11 has a symmetrical shape and is generally trapezoidal, widening towards the bottom. The first surface member 11 is integrally formed from two layers: a thin surface portion with a leather-like pattern and a sponge-like foam portion. The surface portion of the first surface member 11 is on the surface 11a side, and the foam portion is on the back surface 11b (see Figure 3) side. The first outer layer member 11 has a guide portion 11c at its upper edge, which serves as a reference for aligning the first inner layer member 13. The guide portion 11c is a group of multiple notches formed in asymmetrical positions. The left edge 11c1 and the right edge 11c2 of the first skin member 11 are formed in a curved shape that is convex outward. Above the upper end of the left edge 11c1, a left flange 11c3 is formed that protrudes outward and upward to the left. Above the upper end of the right edge 11c2, a right flange 11c4 is formed that protrudes outward and upward to the right. 【0015】 As shown in Figure 4B, the second skin member 12 has a base portion 121 that is elongated from left to right and narrows towards the top, forming a generally trapezoidal shape, and a projection portion 122 that protrudes downward from the lower edge of the base portion 121 over a short length in the longitudinal direction, thus forming a generally symmetrical shape. The left edge 12c1 and right edge 12c2 of the second skin member 12 are formed in a position and shape that coincides with the left edge 11c1 and right edge 11c2 of the first skin member 11 when the second skin member 12 is superimposed on the first skin member 11. The second surface member 12 is integrally formed from two layers: a thin surface portion having a leather-like pattern and a sponge-like foam portion. The surface portion of the second surface member 12 is the front surface 12a side, and the foam portion is the back surface 12b (see Figure 3) side. A guide portion 12c is formed on the lower edge of the protruding portion 122, which serves as a reference for aligning the second inland member 14. The guide portion 12c is a group of multiple notches formed in asymmetrical positions. 【0016】 As shown in Figure 4C, the first inland member 13 is formed in an asymmetrical shape, having a rectangular base portion 131 that is elongated from left to right, and a semi-trapezoidal projection portion 132 that protrudes upward from the upper edge of the base portion 131 with the left side being the slanted side. The first inner lining member 13 is a member that serves as the lining for the pocket portion M, and is formed as a single layer of lining without a foamed layer. The lower edge of the base portion 131 has a guide portion 13c that is formed in correspondence with the guide portion 11c of the first skin member 11 and serves as a reference for alignment (see Figure 15A). The guide portion 13c is a group of multiple notches formed in asymmetrical positions. At the boundary between the base portion 131 and the projection portion 132, there is a guide portion 13d that serves as a reference for alignment with the second inland member 14. The guide portion 13d is a group of multiple small-diameter holes formed in asymmetrical positions. 【0017】 As shown in Figure 4D, the second inland member 14 is formed in an asymmetrical shape with a long rectangular shape from left to right. A guide portion 14c is formed on the upper edge, which can be aligned with the guide portion 12c of the second skin member 12 (see Figure 6A). The guide portion 14c is a group of multiple notches formed asymmetrically on the left and right sides. A guide portion 14d is formed on the lower edge, which can be aligned with the guide portion 13d of the first inland member 13 (see Figure 9). The guide portion 14d is a group of multiple notches formed asymmetrically on the left and right sides. 【0018】 As shown in Figure 3, in the seat back ST2, the second surface material 12 of the pocket surface material 1 is a material that forms the lining on the front side of the bag-shaped pocket material M, which is open at the top. The first surface material 11 is a material that forms the outer (rear side) surface of the pocket material M, covering the part of the pocket material M excluding the upper end of the second surface material 12. 【0019】 As shown in Figure 3, the upper part of the second epidermal member 12 is sutured to the epidermal base 61 with a basic suture 711. The lower end of the second skin member 12 is sutured to the upper end of the second inner member 14, which extends downward, by an inner central suture portion 716. The upper end of the first outer skin member 11 is folded inward at the pocket opening edge M1, and the upper end of the first inner lining member 13, which extends downward, is sutured to the downward-facing tip at the inner upper suture portion 718. The lower end of the second inland member 14 is sutured to the lower part of the first inland member 13 at an insole suture 717, and the lower end of the first inland member 13 is sutured to the lower part of the first outer skin member 11 at an insole suture 719. The lower end of the first epidermal member 11 is sutured to the upper end of the dorsal epidermal portion 62 by a central lower suture portion 713. 【0020】 In the pocket skin portion 1, as shown in Figure 2, the left end of the first skin member 11 is sutured to the skin base portion 61 by the left end of the basic suture portion 711 and the lower left suture portion 712, and the right end is sutured to the skin base portion 61 by the right end of the basic suture portion 711 and the lower right suture portion 714. 【0021】 The pocket surface portion 1 having the pocket portion M described above is formed by a method that will be explained next with reference to Figures 5A to 12. In the pocket portion M, the entire upper edge of the first surface member 11 forms the pocket opening edge M1, which is the opening portion of the pocket portion M. The pocket section M narrows in width (left-right direction) as it moves towards the back, due to the left pocket section M2 and the right pocket section M4, and is formed into a bag-like shape at the bottom pocket section M3, which is located slightly above the central lower suture section 713. 【0022】 The first inland member 13 and the second inland member 14 shown in Figures 4C and 4D, respectively, have no difference in surface condition such as patterns between the front and back, but they are asymmetrical in shape. For convenience, the front side of the paper shown in each figure is designated as the front surface 13a, 14a, and the opposite side is designated as the back surface 13b, 14b (see Figure 3). 【0023】 As shown in Figure 5A and Figure 5B, which is a cross-sectional view taken at position S5B-S5B in Figure 5A, the first inner lining member 13 is placed on the upper end of the surface 11a of the first outer skin member 11, with its lower end folded inward while maintaining the posture shown in Figure 4C. Then, the guide portion 11c and the guide portion 13c are aligned and the two parts are sutured together at the inner upper suture portion 718 (thick dashed line) to form a single unit. The first suture body T1 is formed by integrating the first epidermal member 11 and the first inner lining member 13 with sutures at the inner upper suture portion 718. 【0024】 As shown in Figure 6A and Figure 6B, which is a cross-sectional view taken at position S6B-S6B in Figure 6A, the second inner material member 14 is attached to the lower end of the surface 12a of the second outer material member 12, with its upper end folded inward in the position shown in Figure 4D. Then, the guide portion 12c and the guide portion 14c are aligned and sutured together at the inner central suture portion 716 (thick dashed line) to form a single unit. The second suture body T2 is formed by integrating the second epidermal member 12 and the second inner lining member 14 with sutures at the central inner suture portion 716. 【0025】 As shown in Figure 7, the first suture T1 is first folded along a line LN1 connecting the boundary between the left edge 11c1 and the left flange 11c3, and the boundary between the right edge 11c2 and the right flange 11c4. The position above and below the fold line LN1 is defined as the fold position P1. Then, the portion above the fold position P1 is folded towards the back side in Figure 7 so that the fold line LN1 becomes a mountain fold (see arrow DR1). 【0026】 Furthermore, the area near the upper end of the folded state is sutured with the tip suture portion 715 (thick dashed line) to form the third suture body T3 shown in Figure 8A. Figure 8B is a partial cross-sectional view including the upper end of the third suture body T3, which is at position S8B-S8B in Figure 8A. The upper end of the third suture T3 is the pocket opening edge M1. The pocket opening edge M1 is folded over and sutured, resulting in a good appearance and durability. Next, unfold the part that was folded to the back and extend it upwards (see arrow DR2). 【0027】 In that state, the front and back sides of the second suture T2 shown in Figure 6A are reversed so that the back sides 12b and 14b become the front sides as shown in Figure 9. Then, as indicated by arrow DR4, the second suture T2 is positioned so that the guide portion 14d aligns with the guide portion 13d of the first inner member 13 and placed on top of the third suture T3. 【0028】 Once the second suture T2 is positioned relative to the third suture T3, the upper edge of the second suture T2 and the third suture T3 are sutured together as the pocket bottom suture 720, as shown in Figure 10. The left end of the second suture T2 is sutured to the third suture T3 in an inverted L shape as the left pocket suture 721, and the right end is sutured to the third suture T3 in an L shape as the right pocket suture 722. This results in the formation of a fourth suture, T4, in which the third suture T3 and the second suture T2 are integrally sutured together. In the fourth suture T4, the pocket bottom suture 720 forms the pocket bottom M3 of the pocket M, the left pocket suture 721 forms the left pocket M2 of the pocket M, and the right pocket suture 722 forms the right pocket M4 of the pocket M. That is, the pocket bottom suture 720, the left pocket suture 721, and the right pocket suture 722 sew the periphery of the first inner member 13 and the periphery of the second inner member 14 together, except for the top, forming the bag-shaped storage portion M6 of the pocket M. 【0029】 Next, the portion of the second suture T2 in the fourth suture T4 is folded back to the back side of Figure 10 as a mountain fold near the folding position P1, resulting in the state shown in Figure 11. In this state, the left flange portion 11c3 overlaps with the left edge portion 11c1, and the right flange portion 11c4 overlaps with the right edge portion 11c2. Then, as shown in Figure 12, which is a view of the state shown in Figure 11 from the reverse side, in this state, the first inner material member 13, which will be the tip of the second suture body T2, and the first skin member 11 of the first suture body T1 are sutured together with a half-fold suture portion 723 to form the pocket skin portion 1. 【0030】 As described above, in the pocket structure PK, the left end M5L and right end M5R of the opening M5 formed by the pocket opening edge M1 of the pocket portion M are connected to an intermediate position rather than the end of the epidermal base 61. Therefore, no sutures are formed on the left and right sides of the pocket opening edge M1. As a result, the pocket structure PK allows for a larger opening width Mw (see Figure 2) of the opening M5 of the pocket section M, making it easier to insert items and accommodate long items, thus improving usability. 【0031】 In the pocket structure PK, the storage area M6 of the pocket section M narrows in width from the pocket opening edge M1 to the pocket bottom M3, which is the back of the pocket. As a result, the pocket structure PK is easy to use, as even when small items are placed in the storage compartment M6, the small items do not get stuck in the left and right corners at the bottom and become difficult to retrieve. 【0032】 The pocket structure PK is sutured to the skin base 61, and the pocket opening edge M1, which is the upper end of the first skin member 11, is located below the upper end position of the second skin member 12, which includes the front side of the inside of the pocket portion M. In other words, there is no suture portion in the second skin member 12 at a position opposite to the pocket opening edge M1. Therefore, with the pocket structure PK, when a user puts an item into the pocket M, they can slide the item downwards while keeping it against the upper part of the second outer material 12, so that it does not get caught at the seam between the second outer material 12 and the pocket opening edge M1. As a result, the pocket structure PK makes it easy to put things into pocket M, making it very convenient to use. 【0033】 In the pocket structure PK, the left and right portions of the inside of the pocket M are sutured together at the left pocket suture 721 and the right pocket suture 722, respectively, between three members: the second skin member 12, the first inner skin member 13, and the second inner skin member 14, which are not the skin base 61. As a result, the strength of the pocket M is improved, and even if a large force is applied to the pocket M, such as by placing a heavy object inside, it does not affect the sutures with the skin base 61, etc. As a result, the pocket structure of the PK has a long lifespan and is easy to use. 【0034】 The present invention is not limited to the embodiments and procedures described above, and can be modified in various ways without departing from the spirit of the invention. 【0035】 The vertical mounting position of the pocket surface portion 1 on the rear surface of the seat back ST2 is not limited to the upper part as described above, but may be in the center or below the center. The depth Md of the pocket portion M (see Figures 2 and 3), which is the distance from the pocket opening edge M1 to the pocket bottom M3, can be set arbitrarily. The depth Md can be set mainly by the widths of the second outer skin member 12, the first inner lining member 13, and the second inner lining member 14, and the vertical position of the central lower suture portion 713. Furthermore, the width Wdw (see Figure 2) of the bottom of the pocket section M can be set to any width by the lengths of the first inner member 13 and the second inner member 14. Each suture in the pocket structure PK may be a part that connects two skins by a method other than suture. For example, it may be a part that connects two skins by welding. [Explanation of symbols] 【0036】 1. Pocket surface 11. First skin member 11a surface 11b Back side 11c Guide section 11c1 Left edge 11c2 Right edge 11c3 Left brim 11c4 Right guard section 12. Second skin member 12c Guide section 121 Base 122 Protrusion 13. First Inland Member 13a surface 13b Back side 13c, 13d Guide section 131 Base 132 Protrusion 14. Second Inland Member 14a surface 14b Reverse side 14c, 14d Guide section 61 Epidermal base 62 Dorsal epidermis 711 Basic suture section 712 Lower left suture 713 Lower central suture 714 Lower right suture 715 Tip suture 716 Internal central suture 717 Inner sole suture 718 Upper internal suture 719 Inferior suture 720 Pocket bottom seam 721 Pocket left seam 722 Right pocket suture 723 Half-fold suture LN1 Folding Line M Pocket section Md depth Mw Opening width M1 Pocket opening edge M2 pocket, left side M3 pocket bottom M4 pocket, right side M5 opening M5L, leftmost M5R Right edge M6 Storage Unit P1 Folding position PK Pocket Structure ST Vehicle Seat ST1 Seat Cushion ST2 Seatback ST3 Headrest T1 First suture T2 Second suture T3 Third suture T4 4th suture

Claims

[Claim 1] The upper part and the epidermal base that covers the upper left and right parts connected to the upper part, The dorsal epidermis, which forms the skin from the center to the lower part of the posterior surface, The upper part of the pocket skin portion is sutured to the base of the epidermis at the basic suture and the lower part is sutured to the dorsal part of the epidermis, forming a portion of the epidermis on the posterior side. Equipped with a seat back, The aforementioned pocket surface portion is The rear surface has an opening that extends in the left-right direction, and a bag-shaped storage section that extends downward inside the opening and has a bottom width narrower than the opening. A vehicle seat in which the left and right ends of the opening are located at the midpoint of the basic stitching portion. [Claim 2] The aforementioned pocket surface portion is A first skin member having left and right edges connected to the skin base and a lower edge connected to the skin back, A first inner member connected to the first outer skin member so as to extend downward, A second skin member whose upper edge is connected to the skin base at the basic suture, A second inner member is connected to the lower edge of the second outer skin member so as to extend downward, It has, The opening is formed between the first skin member and the second skin member, with the first skin member positioned outside the second skin member. The vehicle seat according to claim 1, wherein the storage portion is formed in a bag shape by sewing together the edge of the first inner member and the peripheral edge of the second inner member, except for the top. [Claim 3] The vehicle seat according to claim 2, wherein the width of the bottom of the storage compartment is narrower than the width of the opening. [Claim 4] The vehicle seat according to claim 2 or claim 3, wherein the upper end position of the first surface member is lower than the upper end position of the second surface member.

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