Vehicle seats

Abstract

To avoid, as much as possible, occurrence of wrinkles in an unintended part of a seat cover of a bank portion in order to maintain the appearance of a seat.SOLUTION: Provided on an external surface of a seat pad 6P on an outer side in a seat-width direction are a bank external-surface portion 51 extending to a seating side so as to form an external surface of a bank portion (11) and a general external-surface portion 52 extending from the bank external-surface portion 51 to a side opposite to the seating side. A reinforcing portion 61 is formed by disposing a reinforcing member 30 between the bank external-surface portion 51 and a seat cover 6S (SP2). A regulating member 40 for regulating integration of the seat pad 6P with the seat cover 6S is disposed in a bank portion located on the general external-surface portion 52 side from the reinforcing portion 61.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a vehicle seat that includes an integrated seat pad and seat cover and has a bank portion that rises toward the seating side on the outer side in the seat width direction. [Background technology]

[0002] A vehicle seat of this type is known, as disclosed in Patent Document 1. In this vehicle seat, the seat cushion, which serves as the seating surface, is integrally formed with a foamed resin seat pad and a seat cover that covers the seat pad. The seat cushion has a generally flat seating portion in the center of the seat width direction to support the occupant, and a bank portion that rises toward the upper side of the seat on the outer side of the seating portion in the seat width direction.

[0003] In the bank portion, a reinforcing member is disposed between the seat pad and the seat cover, which constitute the inner surface (top panel side portion) in the seat width direction. This reinforcing member is a felt surface material and is adhered and fixed to the back surface of the seat cover. In the known technology, the seat pad is molded with the seat cover pre-placed in a mold for the seat pad. At this time, the resin material of the seat pad impregnates and solidifies into the seat cover, thereby integrating the seat pad with the seat cover simultaneously as it is molded. In addition, in the top panel side portion of the bank portion, the resin material of the seat pad impregnates and solidifies into the reinforcing member, thereby integrating the seat pad and the seat cover via the reinforcing member. The bank portion has appropriate rigidity because the top panel side portion is reinforced with the reinforcing member. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6812902 Summary of the Invention [Problem to be solved by the invention]

[0005] In the vehicle seat described above, a load may be applied outward from the seat to the bank portion. It is desirable to maintain the seat's excellent appearance even in such a case. However, if the seat pad and the seat cover cannot move relative to each other as a single unit, the seat cover is likely to bend outward when an outward load is applied to the bank portion. This can cause a portion of the seat cover to buckle and bend on the outer surface of the bank portion on the outer side in the seat width direction, resulting in wrinkles in unintended locations on the bank portion and potentially damaging the seat's appearance. The present invention was devised in light of the above-mentioned issues, and the problem it aims to solve is to minimize the occurrence of wrinkles in unintended locations on the seat cover at the bank portion in order to maintain the seat's appearance. [Means for solving the problem]

[0006] To solve the above problems, a vehicle seat according to a first aspect of the present invention includes a seat pad capable of elastically supporting an occupant and a seat cover covering the seat pad, which are integrated into one body. The seat pad also includes a bank portion that protrudes toward the seating side on the outer side in the seat width direction. In this type of seat configuration, it is desirable to minimize the occurrence of wrinkles in unintended locations on the bank portion of the seat cover in order to maintain the appearance of the seat. In this aspect of the present invention, the outer surface of the seat pad in the seat width direction is provided with a bank outer surface portion that extends toward the seating side to form the outer surface of the bank portion, and a general outer surface portion that extends from the bank outer surface portion toward the opposite side from the seating side. Therefore, in this aspect of the present invention, a reinforcing member is disposed between the bank outer surface portion and the seat cover to form a reinforcing portion, and a restricting member is disposed in the bank portion located closer to the general outer surface portion than the reinforcing member to restrict the integration of the seat pad with the seat cover. The reinforcing member disposed on the outer surface of the bank portion on the outer side in the seat width direction enhances the rigidity of the bank portion against loads acting outward from the seat. Furthermore, the integration of the seat pad with the seat cover (through impregnation of resin material, etc.) is restricted by the function of the restricting member, making the base of the bank, which corresponds to the part closer to the general outer surface than the reinforcement, relatively flexible and easy to bend. As a result, when a load is applied outward from the seat, the bank can bend at the base while maintaining its shape as much as possible, thereby minimizing the occurrence of wrinkles in unintended places on the seat cover.

[0007] No. 1 The vehicle seat of the invention is , Shi The seat cover portion covering the outer surface of the seat pad on the outer side in the seat width direction is formed by sewing together a plurality of skin pieces. The bank portion located closer to the general outer surface than the reinforcement portion has a seam where adjacent skin pieces are sewn together, and the restricting member is disposed so as to cover the seam from the seat pad side. The bank outer surface portion protrudes outward in the width direction of the seat in an arched shape, and a stitching portion covered with a regulating member is disposed on the top side of the bank outer surface portion protruding outward in the width direction of the seat.In the seat cover of the present invention, the seams between adjacent skin pieces are visible to the outside as decorative lines. By arranging the restricting member to cover the seams, even if wrinkles occur in the seat cover near the base (near the seams) of the bank portion, which is the bending base point, the decorative lines make these wrinkles as inconspicuous as possible.

[0008] No. 2 The vehicle seat of the invention was the first Ming In a vehicle seat, a separate reinforcing portion is formed by integrating the general outer surface portion and the seat cover, and a restricting member is disposed between the reinforcing portion and the separate reinforcing portion. In this invention, by disposing the restricting member between the reinforcing portion and the separate reinforcing portion, the outer surface portion of the bank portion where the restricting member is disposed becomes more flexible and easier to bend than the other outer surface portions. This allows the bank portion to bend more reliably at its base when a load is applied outward from the seat. [Effects of the Invention]

[0009] According to the first aspect of the present invention, it is possible to prevent wrinkles from occurring in unintended locations on the seat cover of the bank portion as much as possible in order to maintain the appearance of the seat. 1 According to the present invention, the appearance of the seat can be more reliably maintained. 2 According to the present invention, it is possible to more reliably prevent wrinkles from occurring in unintended locations on the seat cover. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a schematic plan view of the interior of a vehicle showing the installation position of a vehicle seat. [Figure 2] FIG. 1 is a schematic perspective view of a vehicle seat. [Figure 3] FIG. 2 is a schematic enlarged side view of the vehicle seat showing the bank portion. [Figure 4] FIG. 2 is a schematic cross-sectional view of the vehicle seat showing the bank portion. [Figure 5] FIG. 2 is a schematic plan view of a skin piece and a reinforcing member. [Figure 6]1 is a schematic cross-sectional view of a vehicle seat showing a loaded bank portion. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, an embodiment of the present invention will be described with reference to Figs. 1 to 6. In each figure, arrows indicating the front-rear, up-down, and left-right directions of the interior of the vehicle and the vehicle seat are appropriately shown. In Fig. 1, for convenience, the vehicle seat (2) to which the configuration of this embodiment is applied is shown by a solid line, and the other vehicle seats (2X, 2Y, 2Z) are shown by a two-dot dashed line. In Fig. 3, for convenience, the reinforcing members and the restricting members are shown hatched.

[0012] In a vehicle cabin shown in FIG. 1, a plurality of vehicle seats (2, 2X-2Z) are arranged in rows in the front, rear, left, and right directions, and a vehicle seat 2 to which the configuration of this embodiment is applied is installed on the right front side of the vehicle cabin. The vehicle seat 2 has, as its seat components, a seat cushion 4, a seat back 6, and a headrest 8. Referring to FIG. 2, each of the seat components (4, 6, 8) has a seat frame (4F, 6F, 8F) forming the seat skeleton, a seat pad (4P, 6P, 8P) capable of elastically supporting an occupant, and a seat cover (4S, 6S, 8S) covering the seat pad. The lower part of a seat back 6 (described in detail below) is connected to the rear part of the seat cushion 4 so as to be able to be raised or lowered, and the headrest 8 is disposed in the center of the upper part of the seat back 6.

[0013] The seat back 6 shown in Fig. 2 is a generally rectangular member in front view that serves as a backrest for the occupant, with a seating portion 10 formed in the center in the seat width direction to support the occupant. Furthermore, a left bank portion 11 and a right bank portion 12 are formed on both sides of the seat width direction of the seating portion 10, and the left and right banks 11, 12 form the shoulder portions of the seat back 6. These banks 11, 12 protrude toward the front of the seat, which is the seating side, and are configured to support the occupant's shoulders when the vehicle is traveling, etc. Referring to Figs. 3 and 4, the design surface of the seat back 6, including the banks 11, 12, is formed by a seat cover 6S, and a seat pad 6P is fixed and integrated to the back side of the seat cover 6S (the integration method will be described later).

[0014] In the vehicle seat 2 shown in FIG. 1 , a load F may be applied outward from the seat to the bank portions 11, 12 of the seat back 6. For example, if there is baggage 101 on the rear left side of the vehicle seat 2, the seated occupant 100 may push aside the left bank portion 11 and turn around to retrieve the baggage 101. In a vehicle seat 2 configured as described above, it is desirable to minimize the occurrence of wrinkles in unintended locations on the seat cover 6S when a load F (e.g., a turning load) is applied to the seat, in order to ensure the appearance of the seat. Therefore, in this embodiment, the components (reinforcing member 30, restricting member 40) shown in FIGS. 3 and 4 are appropriately positioned to minimize the occurrence of wrinkles in unintended locations on the seat cover 6S at the bank portions (e.g., 11). Using the left bank portion 11 as an example, the components of the bank portion will be described in detail below, in the order of the seat pad 6P, the seat cover 6S (seam portion 20), the reinforcing member 30, and the restricting member 40.

[0015] [Seat pad] First, the seat pad 6P shown in FIG. 4 is a member that constitutes the outer shape of the seat and can be made of various materials that can elastically support the occupant. Examples of such materials include polyurethane foam (density: 10 kg / m 3 ~60kg / m 3) or a similar foamed resin can be suitably used. The left end of the seat pad 6P in the seat width direction is raised toward the seating side, thereby forming the outer shape of the left bank portion 11. The seat pad 6P forming the left bank portion 11 here rises in a convex shape toward the seating side (front side in FIG. 4), and its inner surface in the seat width direction forms an inclined surface portion 50. This inclined surface portion 50 gradually slopes toward the seating side (front side) as it extends outward in the seat width direction, and the outer end of the inclined surface portion 50 forms the apex of the left bank portion 11. The outer surface of the seat pad 6P on the outer side in the seat width direction (left side in FIG. 4) is provided with an outer bank surface portion 51 extending toward the seating side to form the outer surface of the left bank portion 11, and a general outer surface portion 52 extending from the outer bank surface portion 51 toward the opposite side from the seating side (rear side in FIG. 4). The bank outer surface portion 51 is provided so as to protrude outward in the seat width direction from the top of the left bank portion 11 and extend toward the rear of the seat. The base of the bank outer surface portion 51 is connected to the general outer surface portion 52, which is provided so as to extend toward the rear of the seat.

[0016] [Seat covers] Next, the seat cover 6S shown in Fig. 2 is a surface material that constitutes the design surface of the seat and can be formed by sewing together multiple skin pieces. For example, referring to Figs. 3 and 4, the portion of the seat cover 6S that covers the left bank portion 11 is formed from a first skin piece SP1 that covers the inner inclined surface portion 50 of the seat pad 6P, and a second skin piece SP2 and a third skin piece SP3 that cover the outer bank portion 51. Note that another skin piece SPX is disposed on the seat underside of the second skin piece SP2. Furthermore, a fourth skin piece SP4 and a fifth skin piece SP5 are disposed on the general outer surface portion 52 that is connected to the bank outer surface portion 51. The skin pieces SP1 to SP5 can be made of, for example, fabric (woven fabric, knitted fabric, nonwoven fabric) or leather (natural leather, synthetic leather). Furthermore, a padding material PM such as urethane laminate can be attached to the back surface of each of the skin pieces SP1 to SP5 as shown in FIG. 4, and furthermore, a backing fabric (not shown) such as nonwoven fabric can be attached as appropriate.

[0017] [Suture point] In the seat cover 6S shown in FIG. 2, the edges of adjacent upholstery pieces are sewn together with the outside facing outward. For example, referring to FIGS. 3 and 4, the second upholstery piece SP2 is arranged from the apex toward the base of the left bank portion 11, and the third upholstery piece SP3 is arranged adjacent to the second upholstery piece SP2 on the seat rear side. The second upholstery piece SP2 and the third upholstery piece SP3 are sewn together with institches IS on the outer surface of the left bank portion 11 with these stitches 20 extending in the seat vertical direction. The stitches 20 (the boundary between the two upholstery pieces) form a decorative line that appears externally adjacent to the rear of the second upholstery piece SP2. The third upholstery piece SP3 and the fourth upholstery piece SP4 adjacent to it at the rear of the seat are also sewn together with the outside facing outward, and another stitch 20A that sews these two upholstery pieces SP3 and SP4 together is formed so as to extend in the seat vertical direction. This other stitching point 20A is the protrusion point of the airbag (not shown) and is configured to rupture when the airbag inflates. As shown in Figures 3 and 4, other adjacent skin pieces (SP1 and SP2, SP4 and SP5, SP2 and SPX, etc.) are also sewn together in a similar manner (for convenience, the stitching points of the other skin pieces are given the same reference numeral 20X in each figure). The stitching point 20X between the first skin piece SP1 and the second skin piece SP2 is located at the apex of the left bank portion 11.

[0018] [Reinforcing material] 3 and 4, a reinforcing member 30 is disposed on the outer surface of the left bank portion 11 between the second upholstery piece SP2 and the bank outer surface portion 51 of the seat pad 6P. This reinforcing member 30 is a planar member that can be disposed between the second upholstery piece SP2 and the bank outer surface portion 51 as shown in FIG. 4, and has appropriate rigidity so as to reinforce the outer surface of the left bank portion 11. The material of this type of reinforcing member 30 is not particularly limited as long as it has appropriate rigidity and flexibility. However, a material that is more rigid than the corresponding upholstery piece (e.g., SP2) is preferable, and a material that is more difficult to impregnate with the resin material of the seat pad 6P than the pad material PM is more preferable. Examples of materials for the reinforcing member 30 include a fiber laminate such as felt, a fabric or leather that is thicker than the corresponding upholstery piece, a mat-like foam resin that is denser than the pad material, and a sheet-like soft resin.

[0019] As shown in FIGS. 3 and 5, the reinforcing member 30 is formed to have approximately the same shape and dimensions as the second upholstery piece SP2 (main body portion excluding seams) and is adhered and fixed to cover substantially the entire surface of the second upholstery piece SP2. This uniformly reinforces substantially the entire surface of the second upholstery piece SP2, ensuring the rigidity of the second upholstery piece SP2 regardless of where a load is applied to the left bank portion 11, as described below. The reinforcing member 30 can also be fixed to a portion of the second upholstery piece SP2. In this case, care must be taken to prevent extreme differences in the degree of deflection when a load is applied between the portion where the reinforcing member 30 is located and the portion where it is not located. As shown in FIG. 4, another reinforcing member 30X is adhered and fixed to the back side of the first upholstery piece SP1 of the left bank portion 11. In this way, the left bank portion 11 is reinforced by the corresponding reinforcing members 30, 30X fixed to both the seat inner side and the seat outer side, making it less susceptible to deformation overall.

[0020] [Regulatory components] 3 and 4, a restricting member 40 is disposed on the outer surface of the left bank portion 11 at the seam 20 between the second skin piece SP2 and the third skin piece SP3. This restricting member 40 is a planar member that restricts the integration of the seat pad 6P with the seat cover 6S (resinification by impregnation with a resin material, etc., as described below). The configuration of this type of restricting member 40 is not particularly limited, but an example is a configuration in which a low-impregnation portion, a barrier portion, and an adhesive portion are laminated and integrated. The low-impregnation portion is a portion impregnated with a small amount of resin material and solidified, and is provided on the outermost side of the restricting member 40. This low-impregnation portion can be formed, for example, from the material exemplified for the reinforcing member 30 (nonwoven fabric, etc.). The barrier portion is a portion that solely restricts (limits or prevents) the impregnation of the resin material of the seat pad 6P, and is disposed on the back side of the low-impregnation portion. This barrier portion can be formed, for example, from a film-like resin body or a low-air-permeability foamed resin body (air permeability: 0 cc / cm 2 sec~10cc / cm 2 The adhesive portion is the portion provided on the innermost side of the restricting member 40 and adhered to and fixed at the stitching portion 20, and can be made of an inorganic adhesive component such as a silicon-based or calcium-based adhesive component, or a resin-based adhesive component such as a thermoplastic resin or a thermosetting resin.

[0021] In this embodiment, a restricting member 40 shown in FIG. 4 is fixed to cover the side of the seam 20 facing the seat pad 6P. By disposing the restricting member 40 at the seam 20 and restricting the integration (resinization) of the seat pad 6P with the seam 20, the seam 20 can be made flexible and easily bendable, as described below. In this embodiment, another restricting member 40 can also be fixed to another seam 20A where the third skin piece SP3 and the fourth skin piece SP4 are sewn together. As described above, this other seam 20A serves as a protrusion point when the airbag (not shown) inflates to the outside. Because the other restricting member 40 prevents the other seam 20A from being integrated with the seat pad 6P, it can be torn relatively easily by the pressure of the inflating airbag, the tensile force of the webbing (not shown), and the like.

[0022] [Method of integrating seat pad and seat cover] The seat cover 6S shown in FIG. 4 can be integrated with the seat pad 6P by a method such as integral molding. The seat pad 6P is molded by foaming the resin material of the seat pad 6P in a cavity of a molding device (not shown). In this embodiment, the seat cover 6S, to which the reinforcing members 30, 30X and the restricting members 40, 40X have been previously fixed, is placed in appropriate positions on the inner wall of the molding device that forms the cavity, with the reinforcing members 30, 30X and the restricting members 40, 40X facing inward into the cavity. In this state, a resin material is injected into the cavity, and then foamed to form the seat pad 6P. As the resin material foams, it infiltrates the pad material PM of the upholstery piece and solidifies. The resin of the seat pad 6P penetrates the pad material PM and solidifies, thereby integrating the seat cover 6S with the seat pad 6P.

[0023] [Formation of reinforcement part] According to the above-described method, the seat cover 6S and the seat pad 6P are integrated with each other via the reinforcing members 30, 30X at the left bank portion 11 shown in FIG. 4. For example, the second skin piece SP2 is integrated with the bank outer surface portion 51 of the seat pad 6P via the reinforcing member 30 fixed to the back side thereof by filling the reinforcing member 30 with a resin material and solidifying it. The bank outer surface portion 51 and the second skin piece SP2 are reinforced with the reinforcing member 30 on the outer surface of the left bank portion 11, forming a reinforcing portion 61 with appropriate rigidity against a load F acting outward from the seat (see FIG. 6). Furthermore, the inner inclined surface portion 50 and the first skin piece SP1 at the left bank portion 11 are also reinforced with another reinforcing member 30X, thereby increasing the rigidity of the inner and outer surfaces of the left bank portion 11.

[0024] Furthermore, according to the above-described method, the general outer surface portion 52 constituting the outer surface of the seat pad 6P shown in Fig. 4 is directly integrated with the fourth skin piece SP4 and the fifth skin piece SP5. That is, the seat pad 6P penetrates into the pad material PM of both skin pieces SP4 and SP5 and hardens, thereby ensuring the rigidity of that portion and forming a separate reinforcing portion 62.

[0025] [Forming areas where the seat pad and seat cover are not integrated] On the outer surface of the left bank portion 11 shown in FIG. 4 , the sewn portion 20 covered by the restricting member 40 is less likely to be impregnated with resin material. The restricting member 40 prevents the sewn portion 20 from being integrated with the seat pad 6P, maintaining flexibility and making the bank portion 11 more flexible than the reinforced portion 61. The sewn portion 20 is located in a bank portion closer to the general outer surface portion 52 than the reinforced portion 61, i.e., closer to the base of the bank portion 11 on the left side than the reinforced portion 61. Therefore, when a load F is applied outward from the seat, the left bank portion 11 is configured to bend relatively more easily at its base (see FIG. 6 ). Furthermore, since the restricting member 40 is disposed between the reinforced portion 61 and another reinforced portion 62, the outer surface portion of the left bank portion 11 where the restricting member 40 is located is more flexible and more flexible than the reinforced portions 61 and 62 (other outer surface portions).

[0026] [Behavior of the bank when a load is applied outward from the sheet] As described above, in the vehicle seat 2 shown in FIG. 1, a load F may be applied outward to the left bank portion 11 of the seat back 6. In this case, it is desirable to minimize the occurrence of wrinkles in unintended locations on the left bank portion 11 in order to maintain the appearance of the vehicle seat 2. Therefore, in the left bank portion 11 of this embodiment, as shown in FIG. 4, a planar reinforcing member 30 is disposed between the bank outer surface portion 51 of the seat pad 6P and the seat cover 6S to form a reinforcing portion 61. Furthermore, a restricting member 40 is disposed in the bank portion located closer to the general outer surface portion 52 than the reinforcing member 61 to prevent the seat pad 6P from being integrated with the seat cover 6S. With the above-described configuration, when the load F is applied outward, the left bank portion 11 is bent at its base while maintaining its shape as much as possible (see FIG. 6). Therefore, the functions of the reinforcing portion 61 (reinforcing member 30) and the restricting member 40 provided in appropriate positions will be described in more detail below, along with the behavior of the left bank portion 11.

[0027] 4 and 6, the left bank portion 11 has a reinforcing portion 61 on its outer surface from its apex to near its base, thereby increasing its rigidity against a load F acting outward from the seat. Therefore, the reinforcing portion 61 makes it difficult for the seat pad 6P (bank outer surface portion 51) and the seat cover 6S (second skin piece SP2) provided on the reinforcing portion 61 to deform. Furthermore, a restricting member 40 is disposed on the bank portion (base side) of the left bank portion 11, which is located closer to the general outer surface portion 52 than the reinforcing portion 61. Therefore, the base side of the left bank portion 11 is relatively flexible and bends easily because the restricting member 40 restricts the integration of the seat pad 6P with the seat cover 6S. As a result, when a load F acting outward from the seat is applied to the left bank portion 11, the base side bends while maintaining its shape as much as possible, as shown in FIG. 6. The load F is absorbed (negated) by bending the base side of the left bank portion 11, thereby reducing the load F applied to the bank outer surface portion 51 and the second skin piece SP2, making it possible to avoid as much as possible bending deformation of the second skin piece SP2, which is the cause of wrinkles.

[0028] Furthermore, on the outer surface of the left bank portion 11 shown in FIGS. 4 and 6, a restricting member 40 is disposed at a seam 20 at its base, and this seam 20 appears externally as a decorative line. As a result, even if wrinkles occur in the seat cover 6S at the base (near the seam 20), which is the bending base of the left bank portion 11, the decorative line minimizes the visibility of the wrinkles. Furthermore, in the left bank portion 11, the restricting member 40 is disposed between the reinforcing portion 61 and another reinforcing portion 62, making the outer surface portion of the bank portion where the restricting member 40 is disposed more flexible than the other outer surface portions. This allows the left bank portion 11 to bend more reliably at its base, more reliably preventing wrinkles from occurring in the portion of the seat cover 6S that covers the bank outer surface portion 51 and the general outer surface portion 52 (unintended areas) of the seat pad 6P.

[0029] As described above, the bank portions (11, etc.) of this embodiment have increased rigidity against the load F directed outward from the seat by the reinforcing portion 61 provided on the outer surface on the outer side in the seat width direction. Furthermore, because the integration of the seat pad 6P with the seat cover 6S is restricted by the restricting member 40, the base side of the bank portions (11, etc.), which corresponds to the portion closer to the general outer surface portion 52 than the reinforcing portion 61, is relatively flexible and easily bendable. This allows the bank portions (11, etc.) to bend at their base side while maintaining their shape as much as possible when the load F directed outward from the seat is applied, thereby minimizing the occurrence of wrinkles in unintended locations on the seat cover 6S. Therefore, according to this embodiment, the occurrence of wrinkles in unintended locations on the bank portions (11, etc.) of the seat cover 6S can be minimized to maintain the appearance of the seat.

[0030] Furthermore, in the seat cover 6S of this embodiment, the seams 20 between adjacent upholstery pieces and the like are visible to the outside as decorative lines. The restricting member 40 is arranged to cover the seam 20, so that even if wrinkles occur at the base side (near the seam 20) of the bank portion (11, etc.), which is the bending base point, the decorative lines make these wrinkles less noticeable. In this embodiment, the restricting member 40 is arranged between the reinforcing portion 61 and another reinforcing portion 62, so that the outer surface portion of the bank portion where the restricting member 40 is arranged is more flexible and bends more easily than the other outer surface portions. This allows the bank portion (11, etc.) to bend more reliably at its base side when a load F is applied outward from the seat.

[0031] The vehicle seat of this embodiment is not limited to the above-described embodiment and may be embodied in various other ways. For example, while the configurations of the reinforcing member and the restricting member are illustrated in this embodiment, the configuration of each member can be appropriately changed depending on the configuration of the seat cover and the seat pad. Furthermore, the position of the restricting member is not limited to the stitching but can be set at any appropriate position on the seat cover (for example, the back surface of the third skin piece shown in FIG. 4 ). Furthermore, when the bank portion is covered with a single seat cover, the restricting member can be disposed at any appropriate position on the back surface of the seat cover. Furthermore, the restricting member only needs to be disposed on the outer surface of the bank portion, which is located closer to the general outer surface than the reinforcing member, and does not necessarily need to be disposed between the reinforcing member and another reinforcing member. In other words, a separate reinforcing member is not necessarily required for the bank portion. Furthermore, the method of integrating the seat cover and the seat pad is not limited to integral molding, and various methods can be used, such as integrating the seat cover with the seat pad by adhesive or fusion bonding. Furthermore, in a vehicle seat, at least one of the separate reinforcing member and the separate restricting member may be omitted.

[0032] In addition, in this embodiment, the configuration of this embodiment has been described using the seat back as an example, but the configuration of this embodiment can be applied to various seat components such as a seat cushion. The configuration of this embodiment can be applied to at least one of the right bank portion and the left bank portion. In addition, in this embodiment, the configuration of a vehicle seat has been exemplified, but the configuration of the vehicle seat can also be changed as appropriate. The configuration of this embodiment can be applied to a vehicle seat installed at an appropriate position in the vehicle cabin, and can also be applied to a vehicle seat for multiple passengers. The configuration of this embodiment can be applied to vehicle seats in general, such as those for cars, airplanes, trains, and ships. [Explanation of symbols]

[0033] 2 Vehicle seats 4 seat cushions 6 Seat back 8 Headrest 6F seat frame 6P seat pad 6S seat cover 10 Seating area 11 Left bank (bank of the present invention) 12 Right bank 20 Sutures 20A Alternate stitching 20X Other sutures 30 Reinforcement member 30X Additional reinforcement member 40 Regulatory member 40X Other restriction member 50 Slope section 51 Outer bank 52 General external part 61 Reinforcement 62 Another reinforcement 100 crew members 101 Luggage SP1 First skin piece SP2 Second skin piece SP3 Third Skin Piece SP4 Fourth Skin Piece SP5 Fifth Skin Piece SPX Other skin pieces IS Institch PM pad material 2X, 2Y, 2Z and other vehicle seats

Claims

1. A vehicle seat includes a seat pad capable of elastically supporting an occupant and a seat cover that covers the seat pad, and the vehicle seat has a bank portion that rises toward the seating side on the outer side in the seat width direction, The seat pad has an outer surface on the outer side in the seat width direction, which is provided with a bank outer surface portion extending toward the seating side so as to form the outer surface of the bank portion, and a general outer surface portion extending from the bank outer surface portion toward the opposite side to the seating side, A reinforcing member is disposed between the bank outer surface portion and the seat cover to form a reinforcing portion, and a restricting member is disposed in a bank portion located closer to the general outer surface portion than the reinforcing member to restrict integration of the seat pad with the seat cover, The seat cover portion covering the outer surface of the seat pad in the seat width direction is formed by sewing together a plurality of skin pieces, a stitching portion where adjacent skin pieces are stitched together is provided in a bank portion located closer to the general outer surface portion than the reinforcing portion, and the restricting member is disposed so as to cover the stitching portion from the seat pad side; The outer bank portion protrudes outward in the seat width direction in an arched shape, and the stitching point covered by the regulating member is located on the top side of the outer bank portion protruding outward in the seat width direction.

2. The general outer surface portion and the seat cover are integrated to form another reinforcing portion, and The vehicle seat according to claim 1 , wherein the restricting member is disposed between the reinforcing portion and the another reinforcing portion.

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