Vehicle sheet

Abstract

To provide a vehicle seat having an improved engaging force between a skin and a padding material.SOLUTION: The vehicle seat includes a frame, a padding material P provided on the frame, a skin covering the padding material P, and an engaging member for suspending the skin onto the padding material P. The engaging member is a hook-and-loop fastener having an engaging portion provided on the skin and an engaged portion 12 provided on the padding material P and engaged with the engaging portion. A long groove portion 30 for suspending the skin is formed in the padding material P. A mounting surface 32 for mounting the engaged portion 12 is formed on the bottom surface of the groove portion 30. At least a portion of the mounting surface 32 is inclined with respect to an orthogonal plane perpendicular to the depth direction of the groove portion 30.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a vehicle seat, and more particularly to a vehicle seat including a frame, a padding material, a cover, and an engaging member. [Background technology]

[0002] Conventionally, in a vehicle seat, it is known that the upholstery is suspended in a groove formed in a padding material. As a suspension method, a method in which a clip attached to the upholstery side is engaged with an insert wire embedded in the padding material, or a method using a hook-and-loop fastener has been proposed.

[0003] For example, in the seat described in Patent Document 1, a pattern groove (groove) is formed in a cushion material (pad material). A mounting surface for mounting a hook-and-loop fastener (engaged portion) is formed on the bottom surface of the pattern groove. A hook-and-loop fastener (engagement portion) is provided on a cover material (cover). The surface material is then suspended from the cushion material by engaging the hook and loop fasteners of the surface material with the hook and loop fasteners of the pattern grooves. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 10-272268 Summary of the Invention [Problem to be solved by the invention]

[0005] In the sheet described in Patent Document 1, the mounting surface of the pattern groove is provided parallel to the perpendicular plane perpendicular to the depth direction of the groove. Generally, hook-and-loop fasteners are made of the same polyurethane material as the padding material, and are therefore prone to thermal deformation. Therefore, there is a risk that the hook-and-loop fasteners provided on the padding material will deform due to heat, reducing the engagement force with the surface layer.

[0006] The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle seat in which the engaging force of the cover with respect to the padding is improved. [Means for solving the problem]

[0007] The above problem is solved by the vehicle interior skin of the present invention, which comprises a frame, a padding material placed on the frame, a skin covering the padding material, and an engaging member for suspending the skin onto the padding material, the engaging member being a hook-and-loop fastener having an engaging portion provided on the skin and an engaged portion provided on the padding material and engaged with the engaging portion, the padding material having a long groove portion formed therein for suspending the skin, a mounting surface for mounting the engaged portion formed on a bottom surface of the groove portion, and at least a portion of the mounting surface being inclined with respect to an orthogonal plane perpendicular to the depth direction of the groove portion. With the above-mentioned configuration, by inclining the mounting surface, it is possible to suppress a decrease in the engaging force even if thermal deformation occurs, and therefore it is possible to improve the engaging force of the cover with respect to the pad material.

[0008] In this case, it is preferable that the mounting surface is inclined from one side to the other side in the longitudinal direction of the groove portion. With the above-described configuration, the mounting surface is inclined along the longitudinal direction of the groove, so that the reduction in the engaging force can be further suppressed even if thermal deformation occurs.

[0009] In this case, it is preferable that the mounting surface is inclined symmetrically about a central portion in the longitudinal direction of the groove portion. With the above-described configuration, a plurality of mounting surfaces are formed with different inclination directions, so that the reduction in the engaging force can be further suppressed even if thermal deformation occurs.

[0010] In this case, the mounting surface may be inclined so that the groove is deeper at both ends in the longitudinal direction than at a central portion of the groove. With the above-described configuration, a plurality of mounting surfaces are formed with different inclination directions, so that the reduction in the engaging force can be further suppressed even if thermal deformation occurs.

[0011] In this case, the mounting surface may be inclined so that the groove is deeper at a central portion in the longitudinal direction than at both ends of the groove. With the above-described configuration, a plurality of mounting surfaces are formed with different inclination directions, so that the reduction in the engaging force can be further suppressed even if thermal deformation occurs.

[0012] In this case, the mounting surface has a first mounting surface provided on one side of the groove portion in the longitudinal direction, a second mounting surface provided on the other side of the groove portion in the longitudinal direction, and a third mounting surface provided between the first mounting surface and the second mounting surface in the longitudinal direction of the groove portion, and the first mounting surface and the second mounting surface are each inclined with respect to the orthogonal plane, and the third mounting surface is provided parallel to the orthogonal plane. With the above-described configuration, a plurality of inclined surfaces and non-inclined surfaces are formed as the mounting surface, so that the reduction in the engaging force can be further suppressed even if thermal deformation occurs.

[0013] In this case, the vehicle includes an airbag device attached to the frame and having an airbag and an inflator, and a locking member which is a member different from the engaging member and is used to suspend the cover onto the padding material, the locking member being a member other than a hook-and-loop fastener and having a locking portion provided on the cover and a locked portion provided on the padding material and locked to the locking portion, the groove portion having a first groove portion formed at a position corresponding to the airbag device and a second groove portion formed at a position different from the first groove portion, the locked portion of the locking member being provided in the first groove portion, and the locked portion of the engaging member being provided in the second groove portion. With the above-described configuration, by using a clip member having a lower engagement force than a hook-and-loop fastener in the first groove portion in which the airbag device is provided, the airbag can be easily deployed in the desired direction when deployed.

[0014] In this case, the locking portion of the locking member may be a hook, and the locked portion of the locking member may be a clip hooked onto the hook. With the above-described configuration, by using a fastener and a clip having a lower engagement force than a hook-and-loop fastener, the airbag can be easily deployed in the desired direction when the airbag is deployed.

[0015] In this case, the engaged portion may have an extension portion that engages with the engaging portion and extends along the longitudinal direction of the groove portion, and a pad separation prevention portion that is provided at both ends in the width direction of the extension portion and prevents the pad from separating from the pad material. With the above-described configuration, when the engaged portion is embedded in the padding material by insert molding, the engaged portion can be prevented from coming off the padding material.

[0016] In this case, a through hole may be formed in the pad separation prevention portion, penetrating the pad separation prevention portion in an extending direction of the extending portion and in an orthogonal direction perpendicular to the width direction. With the above-described configuration, when the engaged portion is embedded in the pad material by insert molding, the pad material enters the through hole, so that the engaged portion can be further prevented from coming off the pad material.

[0017] In this case, it is preferable that the through hole has a triangular shape when viewed from the orthogonal direction of the extension portion. With the above-described configuration, when the engaged portion is embedded in the padding material by insert molding, the padding material easily enters the through-hole, so that the engaged portion can be further prevented from coming off the padding material. Effect of the Invention

[0018] According to the present invention, even if thermal deformation occurs, the decrease in the engaging force can be suppressed, and therefore the engaging force of the cover with respect to the pad material can be improved. Furthermore, according to the present invention, even if thermal deformation occurs, the decrease in the engaging force can be further suppressed. Furthermore, according to the present invention, the decrease in the engaging force can be further suppressed even if thermal deformation occurs. Furthermore, according to the present invention, when the airbag is deployed, it becomes easier to deploy the airbag in a desired direction. Furthermore, according to the present invention, it is possible to prevent the engaged portion from coming off the pad material. Furthermore, according to the present invention, the engaged portion can be further prevented from coming off the pad material. Furthermore, according to the present invention, the engaged portion can be further prevented from coming off the pad material. [Brief description of the drawings]

[0019] [Figure 1] 1 is a perspective view of a vehicle seat according to an embodiment of the present invention; [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] FIG. [Figure 6] 6 is a cross-sectional view taken along the line VI-VI in FIG. 2, illustrating a groove portion. [Figure 7] FIG. 13 is a perspective view of an engagement member according to a modified example. [Figure 8A] 13 is a diagram illustrating a groove portion of Modification 1. FIG. [Figure 8B] 13 is a diagram illustrating a groove portion of Modification 2. FIG. [Figure 8C] 13 is a diagram illustrating a groove portion of Modification 3. FIG. [Figure 8D] 13 is a diagram illustrating a groove portion of Modification 4. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 8D. In the following description, the "front-rear direction" refers to the front-rear direction of the vehicle seat, which coincides with the direction of travel when the vehicle is traveling. The "seat width direction" refers to the width direction of the vehicle seat, which coincides with the left-right direction as seen by an occupant seated in the vehicle seat. The "up-down direction" refers to the up-down direction of the vehicle seat, which coincides with the vertical direction when the vehicle is traveling on a horizontal plane.

[0021] <Overall sheet configuration> The vehicle seat S of this embodiment is a seat that is placed on a vehicle body floor and in which a vehicle occupant sits, as shown in Fig. 1. In this embodiment, the vehicle seat S is used as a front seat that corresponds to the front seat of the vehicle. However, the present invention is not limited to this, and the vehicle seat S may be a rear seat of the vehicle, and may also be used as a second-row middle seat or a third-row rear seat in a vehicle that has three rows of seats in the front-rear direction.

[0022] 1 and 2, the vehicle seat S is mainly composed of a seat body having a seat back 1, a seat cushion 2, and a headrest 3. The vehicle seat S is provided with a seat frame F therein. The vehicle seat S is equipped with an airbag device 4 provided on the seat frame F. The vehicle seat S further includes a padding material P arranged on the seat frame F and a cover T covering the padding material P.

[0023] As shown in Figures 1 and 2, the seat back 1 is a backrest portion that supports the back of an occupant from behind, and is constructed by placing a padding material P on a back frame Fa that forms the skeleton of the seat back 1 and covering it with a skin T. The seat cushion 2 is a seating portion that supports an occupant from below, and is configured by placing a pad material P on a cushion frame Fb that forms the skeleton of the seat cushion 2, and covering it with a skin T. The headrest 3 is a head portion that supports the head of an occupant from behind, and is configured by placing a pad material P on a pillar (not shown) that serves as a core material, and covering it with a skin T.

[0024] As shown in FIG. 1, the airbag device 4 has a known structure, is attached to a seat frame F, and has an airbag and an inflator. The airbag device 4 is disposed inside the seat back 1, on the inner side of the skin T. When gas is ejected by the inflator and the airbag expands outward from the case, the padding P breaks at a tear line (not shown), and the skin T is cut open, causing the airbag to deploy outward. The airbag device 4 may be provided in the seat cushion 2.

[0025] In addition, the vehicle seat S has an engagement member 10 for suspending the cover T onto the pad material P, as shown in FIG. The engaging member 10 is a strip-shaped hook-and-loop fastener, and has an engaging portion 11 provided on the cover T, and an engaged portion 12 provided on the padding material P and engaged with the engaging portion 11. The cover T is fixed to the padding material P by the engaging portion 11 engaging with the engaged portion 12 and being suspended.

[0026] 3, the engaging portion 11 is a hook portion of a hook-and-loop fastener for suspending the skin T. The engaging portion 11 engages with an engaged portion 12 provided on the padding material P. The engaging portion 11 may be a loop portion of a hook-and-loop fastener. The engaging portion 11 is made of resin, for example, polyester resin such as polyethylene terephthalate (PET), etc. Alternatively, it may be made of polypropylene, polyethylene resin, etc.

[0027] The engaging portion 11 has a base 11a attached to the skin T, and a number of hooks 11b provided on the base 11a and engaging with the engaged portion 12. The base 11a extends long along the hanging end of the skin T, and is sewn together with the skin T.

[0028] 3, the engaged portion 12 is a loop portion for hooking the hook 11b of the engaging portion 11. The engaged portion 12 is provided inside a groove portion 30 of the pad material P, which will be described later. The engaged portion 12 may be a hook portion of a hook-and-loop fastener.

[0029] The engaged portion 12 is made of resin, and is formed of, for example, polyurethane (PU) resin. It may also be formed of polypropylene (PP) resin, polyacetal (POM) resin, polyamide (PA) resin, polycarbonate (PC) resin, or the like.

[0030] 4, the engaged portion 12 is a strip-shaped member that is engaged with the engaging portion 11 and extends longitudinally along a groove portion 30 of the pad material P described later. The engaged portion 12 has an extending portion 12a that extends longitudinally of the groove portion 30, and pad separation prevention portions 12b that are provided at both ends in the width direction of the extending portion 12a and prevent the extending portion 12a from separating from the pad material P.

[0031] 4, the extending portion 12a is provided with a number of loops that are engaged with the engaging portion 11. Note that the extending portion 12a is not limited to having a number of loops, and may have any shape that is capable of engaging with the hooks 11b of the engaging portion 11. The pad separation prevention portion 12b is formed with a plurality of through holes 12c penetrating in a direction perpendicular to the extension direction and width direction of the extension portion 12a. Each of the through holes 12c has a triangular shape when viewed from the perpendicular direction of the extension portion 12a. However, the shape and number of the through holes 12c are not limited to this.

[0032] The engaged portions 12 are provided inside a second groove portion 30b, a third groove portion 30c, a fourth groove portion 30d, a fifth groove portion 30e, and a sixth groove portion 30f, which will be described later, of the pad material P. The engaged portions 12 are integrally formed during foam molding of the pad material P, and are attached to the pad material P with the pad separation suppressing portion 12b embedded inside the pad material P. Although one engaged portion 12 is provided in each groove portion 30, a plurality of engaged portions 12 may be provided in one groove portion 30 at predetermined intervals.

[0033] 5, the vehicle seat S has a locking member 20, which is a member different from the engaging member 10, for suspending the cover T on the padding material P. The locking member 20 is, for example, a clip member, and has a locking portion 21 provided on the cover T and an engaged portion 22 provided on the padding material P and engaged with the locking portion 21. The cover T is fixed to the padding material P by the locking portion 21 engaging with the engaged portion 22 and being suspended. The locking member 20 may be a member for locking a C-hook to an insert wire embedded in the pad material P, in addition to a clip member.

[0034] The locking portion 21 is a fastener having a tip portion formed in an arrowhead shape in cross section, as shown in Fig. 5. The locking portion 21 is made of resin, for example, a polyester resin such as polyethylene terephthalate (PET). The engaging portion 21 has a base end portion 21a that is connected to the skin T, and a tip end portion 21b that is inserted into the engaged portion 22. The base end portion 21a is sewn together with the skin T.

[0035] 5, the locked portion 22 is a clip that is hooked onto the locking portion 21. The locked portion 22 is made of resin, for example, polyurethane (PU) resin. It may also be made of polypropylene (PP) resin, polyacetal (POM) resin, polyamide (PA) resin, polycarbonate (PC) resin, or the like. The locked portion 22 has a base portion 22a embedded in the pad material P, and a holding portion 22b having a substantially U-shaped cross section and holding the locking portion 21. The holding portion 22b may have a V-shaped or C-shaped cross section.

[0036] A plurality of the locked portions 22 are provided at predetermined intervals inside a first groove portion 30a (described later) of the padding material P. The locked portions 22 are integrally formed during foam molding of the padding material P, and are attached to the padding material P in a state where they are embedded inside the padding material P.

[0037] <Eidermis> The cover T is made of fabric, film, cloth, leather, sheet, etc., and is attached so as to cover the pad material P in a stretched state with a predetermined tension. As shown in FIG. 3, the skin T includes a skin material Ta that serves as a surface, and a cushion layer Tb that is provided on the surface of the skin material Ta that faces the pad material P.

[0038] An engaging portion 11 of an engaging member 10 is provided at the hanging end of the skin T. The engaging portion 11 is sewn together with the skin material Ta and the cushion layer Tb and attached to the hanging end of the skin T. The skin T is fixed to the pad material P by the engaging portion 11 engaging with the engaged portion 12 and being hung. In this manner, by sewing the engaging portion 11 together with the cover material Ta and the cushion layer Tb, it is possible to prevent the engaging portion 11 from coming off the cover material T. Therefore, the engaging force of the cover material T with respect to the pad material P can be increased.

[0039] <Pad> The padding material P has a cushion portion formed of a foam, and the cushion portion is covered with a skin T. As the foam, polypropylene bead foam, polyethylene bead foam, polypropylene foam, polyethylene foam, acrylonitrile-styrene foam, ethylene vinyl acetate copolymer resin, urethane foam material, or a combination of these may be used. In this embodiment, the padding material P is a polyurethane pad formed by foam molding using a urethane foaming agent.

[0040] 2, the pad material P is formed with a long groove portion 30 for suspending the skin T. The groove portion 30 has a first groove portion 30a formed in a position corresponding to the airbag device 4 in the back pad P1 of the seat back 1 and extending in the vertical direction, and a second groove portion 30b formed in a position different from the first groove portion 30a in the back pad P1 and extending in the vertical direction. In addition, the groove portion 30 has a third groove portion 30c formed in the center of the back pad P1 in the up-down direction and extending in the seat width direction, and a fourth groove portion 30d formed above the third groove portion 30c and extending in the seat width direction.

[0041] Furthermore, the groove portion 30 has two fifth groove portions 30e formed in the cushion pad P2 of the seat cushion 2 and extending in the front-rear direction, and two sixth groove portions 30f formed in the cushion pad P2 and extending in the seat width direction. The number and arrangement of the grooves 30 are merely examples and are not limited thereto.

[0042] The first groove 30a is provided with a locked portion 22 of the locking member 20. The second groove 30b, the third groove 30c, the fourth groove 30d, the fifth groove 30e, and the sixth groove 30f are provided with an engaged portion 12 of the engaging member 10. In this manner, the first groove 30a provided at a position corresponding to the airbag device 4 is provided with a locking member 20 (clip member) having a lower engaging force than the engaging member 10 (hook and loop fastener). Therefore, when the airbag is deployed, it becomes easier to deploy the airbag in the desired direction. It is sufficient that at least one engaging member 10 is provided in the groove portion 30. For example, the first groove portion 30a may be provided with an engaged portion 12 of the engaging member 10. Furthermore, the second groove portion 30b, the third groove portion 30c, the fourth groove portion 30d, the fifth groove portion 30e, and the sixth groove portion 30f may be provided with an engaged portion 22 of the locking member 20.

[0043] <Groove> Next, the detailed structure of the groove portion 30 will be described using the third groove portion 30c as an example. The second groove portion 30b, the fourth groove portion 30d, the fifth groove portion 30e, and the sixth groove portion 30f have the same structure, so their description will be omitted. The first groove portion 30a may also have the same structure.

[0044] 4, a mounting portion 31 for mounting the engaged portion 12 is formed in the groove portion 30. The mounting portion 31 has a mounting surface 32 for mounting the engaged portion 12. In other words, the mounting surface 32 for mounting the engaged portion 12 is formed on the bottom surface of the groove portion 30. The mounting portion 31 is integrally formed of the same material as the groove portion 30. Therefore, the mounting surface 32 becomes the bottom surface of the groove portion 30. However, this is not limited thereto, and the mounting portion 31 and the groove portion 30 may be separate members, and the mounting portion 31 may be attached to the bottom surface of the groove portion 30.

[0045] 6, the mounting surface 32 is inclined with respect to a plane perpendicular to the depth direction of the groove portion 30. Specifically, the mounting surface 32 is inclined from one side to the other in the longitudinal direction of the groove portion 30. More specifically, the mounting surface 32 has a first mounting surface 32a that slopes upward from the right side to the left side in the longitudinal direction (seat width direction) and a second mounting surface 32b that slopes downward from the right side to the left side. In other words, the mounting surface 32 slopes so that the groove 30 is deeper at both ends in the longitudinal direction than at the center.

[0046] The mounting surfaces 32 are provided symmetrically about the center of the groove 30 in the longitudinal direction, and extend from the center to both ends so as to incline downward. In this way, since the groove 30 has a plurality of mounting surfaces 32 with different inclination directions, the engaging force can be further improved.

[0047] In order to further improve the engagement force, the groove 30 extends at an incline from one side to the other in the longitudinal direction, but is not limited thereto. For example, the groove 30 may be inclined from one side to the other in the width direction of the groove 30. Furthermore, the number of inclined mounting surfaces 32 may be one, or three or more.

[0048] With the above-mentioned configuration, the mounting surface 32 to which the engaged portion 12 is attached is inclined, so that the engaging force of the engaging member 10 can be increased. For example, the temperature inside the vehicle becomes very high in summer, making the hook-and-loop fastener susceptible to thermal deformation. By inclining the mounting surface 32 as in this embodiment, even if thermal deformation occurs in the engaging member 10, the decrease in the engaging force can be suppressed more than in the case where the mounting surface 32 is provided so as to be parallel to the orthogonal plane. Therefore, the engagement force of the cover T with the pad P can be improved.

[0049] <Modifications of the engagement portion> Next, a modified example of the engaging portion will be described with reference to Fig. 7. Note that a description of the configuration that overlaps with the above-described vehicle seat S will be omitted.

[0050] The engaging portion 41 of the modified example has a base 41a attached to the skin T, and a number of hooks 41b provided on the base 41a and engaging with the engaged portion 12. The base 11a extends long along the hanging end of the skin T, and is joined to the hanging end by an adhesive. In this way, since the engaging portion 41 is joined to the hanging end portion by the adhesive, the engaging portion 41 can be easily attached to the hanging end portion of the skin T.

[0051] <Modifications of the Groove> Next, Modifications 1 to 4 of the groove portion will be described with reference to Figures 8A to 8D. Note that a description of configurations that overlap with the above-described vehicle seat S will be omitted.

[0052] 8A, a mounting portion 51 for mounting the engaged portion 12 is formed in the groove portion 50 of the vehicle seat S of the first modification. The mounting portion 51 has a mounting surface 52 for mounting the engaged portion 12. In other words, the mounting surface 52 for mounting the engaged portion 12 is formed on the bottom surface of the groove portion 50.

[0053] As shown in FIG. 8A, the mounting surface 52 is inclined with respect to a plane perpendicular to the depth direction of the groove portion 50. More specifically, the groove 50 has a first attachment surface 52a that slopes downward from the right side to the left side in the longitudinal direction (seat width direction) and a second attachment surface 52b that slopes upward from the right side to the left side. In other words, the attachment surface 52 slopes so that the groove 50 is deeper at the center in the longitudinal direction than at both ends.

[0054] The mounting surfaces 52 are provided symmetrically about the center of the groove 50 in the longitudinal direction, and extend from the center toward both ends so as to incline upward. In this way, since the groove portion 50 is formed with a plurality of mounting surfaces 52 with different inclination directions, the engaging force can be further improved.

[0055] As shown in Fig. 8B, a mounting portion 61 for mounting the engaged portion 12 is formed in the groove portion 60 in the vehicle seat S of the second modification. The mounting portion 61 has a mounting surface 62 for mounting the engaged portion 12. In other words, the mounting surface 62 for mounting the engaged portion 12 is formed on the bottom surface of the groove portion 60.

[0056] As shown in FIG. 8B, a portion of the mounting surface 62 is inclined with respect to a plane perpendicular to the depth direction of the groove portion 60. In detail, the mounting surface 62 has a first mounting surface 62a provided on one side in the longitudinal direction of the groove portion 60 (right side in the seat width direction), a second mounting surface 62b provided on the other side in the longitudinal direction of the groove portion 60 (right side in the seat width direction), and a third mounting surface 62c provided between the first mounting surface 62a and the second mounting surface 62b in the longitudinal direction of the groove portion 60.

[0057] The first mounting surface 62a and the second mounting surface 62b are each inclined with respect to the orthogonal plane. Specifically, the first mounting surface 62a is inclined upward from the right side to the left side in the longitudinal direction of the groove portion 60. The second mounting surface 62b is inclined downward from the right side to the left side in the longitudinal direction of the groove portion 60. The third mounting surface 62c is provided parallel to the orthogonal plane. Although the engaged portion 12 is not attached to a vertical surface extending in the depth direction of the groove portion 60, the engaged portion 12 may be attached to the vertical surface. In other words, the first attachment surface 62a, the second attachment surface 62b, and the third attachment surface 62c may be provided so as to be continuous along the bottom surface and the vertical surface of the groove portion 60.

[0058] The mounting surfaces 62 are provided symmetrically about the center of the groove 60 in the longitudinal direction. In this way, the groove 60 is formed with a plurality of mounting surfaces 62 with different inclination directions and non-inclined surfaces, so that the engaging force can be further improved.

[0059] 8C, a plurality of mounting portions 71 for mounting the engaged portions 12 are formed in the groove portion 70 of the vehicle seat S of the third modified example. The mounting portions 71 have a first mounting portion 71a provided on one side in the longitudinal direction of the groove portion 70 (the right side in the seat width direction) and a second mounting portion 71b provided on the other side in the longitudinal direction of the groove portion 70 (the right side in the seat width direction). Each of the mounting portions 71 is formed with a mounting surface 72 for mounting the engaged portion 12. Also, the groove portion 70 is provided with a non-mounting surface 73 on which no mounting portion 71 is formed. In other words, the bottom surface of the groove portion 70 is composed of the mounting surface 72 and the non-mounting surface 73.

[0060] As shown in FIG. 8C, the mounting surface 72 is inclined with respect to a plane perpendicular to the depth direction of the groove portion 70. More specifically, the mounting surface 72 has a first mounting surface 72a provided on the first mounting portion 71a and a second mounting surface 72b provided on the second mounting portion 71b. The first mounting surface 72a and the second mounting surface 72b are each inclined with respect to a perpendicular plane. Specifically, the first mounting surface 72a is inclined upward from the right side to the left side in the longitudinal direction of the groove portion 70. The second mounting surface 72b is inclined downward from the right side to the left side in the longitudinal direction of the groove portion 70.

[0061] In this way, the groove 70 has a plurality of mounting surfaces 72 with different inclination directions, which further improves the engagement force. Also, the groove 70 has a non-mounting surface 73 on which the mounting portion 71 (mounting surface 72) is not formed, which allows the length of the engaged portion 12 to be shortened. Therefore, the manufacturing cost of the vehicle seat S can be reduced.

[0062] 8D, a groove 80 in the vehicle seat S of the fourth modified example is formed with a plurality of mounting portions 81 for mounting the engaged portions 12. The mounting portions 81 have a first mounting portion 81a provided on one side in the longitudinal direction of the groove 80 (the right side in the seat width direction) and a second mounting portion 81b provided on the other side in the longitudinal direction of the groove 80 (the right side in the seat width direction). Each of the mounting portions 81 is formed with a mounting surface 82 for mounting the engaged portion 12. Also, the groove portion 80 is provided with a plurality of non-mounting surfaces 83 on which no mounting portion 81 is formed. In other words, the bottom surface of the groove portion 80 is composed of the mounting surface 82 and the non-mounting surface 83.

[0063] As shown in FIG. 8D, the mounting surface 82 is inclined with respect to a plane perpendicular to the depth direction of the groove portion 80. More specifically, the mounting surface 82 has a first mounting surface 82a provided on the first mounting portion 81a and a second mounting surface 82b provided on the second mounting portion 81b. The first mounting surface 82a and the second mounting surface 82b are each inclined with respect to a perpendicular plane. Specifically, the first mounting surface 82a is inclined downward from the right side to the left side in the longitudinal direction of the groove portion 80. The second mounting surface 82b is inclined upward from the right side to the left side in the longitudinal direction of the groove portion 80.

[0064] In this way, the groove 80 has a plurality of mounting surfaces 82 with different inclination directions, which further improves the engagement force. Also, the groove 80 has a plurality of non-mounting surfaces 83 on which no mounting portion 81 (mounting surface 82) is formed, which further shortens the length of the engaged portion 12. Therefore, the manufacturing cost of the vehicle seat S can be reduced.

[0065] In the above embodiment, a vehicle seat used in an automobile has been described as a specific example, however, without being limited thereto, the present invention can be used for various seats such as two-wheeler seats, vehicle seats for trains and buses, seats for vehicles such as airplanes and ships, as well as office chairs for work, wheelchairs, and child seats in shopping carts.

[0066] In the present embodiment, the vehicle seat according to the present invention has been mainly described. However, the above embodiment is merely an example for facilitating understanding of the present invention, and is not intended to limit the present invention. The present invention can be modified or improved without departing from the spirit of the present invention, and the present invention naturally includes equivalents thereof. [Explanation of symbols]

[0067] S Vehicle seat Front seat frame (frame) Fa Back Frame Fb Cushion Frame T epidermis Ta skin material Tb cushion layer P Pad material P1 Back Pad P2 Cushion Pad 1 Seat back 2 Seat cushion 3 Headrest 4. Airbag device 10 Engagement member 11 Engagement part 11a base 11b Hook 12 Engaged part 12a Extension 12b Pad removal prevention part 12c through hole 20 Locking member 21 Locking part 21a Proximal end 21b Tip 22 Locked part 22a Base 22b Holding part 30, 40, 50, 60, 70, 80 Groove 30a First groove 30b Second groove 30c Third groove 30d Fourth groove 30e Fifth groove 30f 6th groove 31, 51, 61, 71, 81 Mounting part 71a First mounting part 71b Second mounting part 32, 52, 62, 72, 82 Mounting surface 32a, 52a, 62a, 72a, 82a First mounting surface 32b, 52b, 62b, 72b, 82b Second mounting surface 62c Third mounting surface 41 Engagement part 41a base 41b Hook 73, 83 Non-mounting surface

Claims

1. A frame, A padding material disposed on the frame; A skin covering the padding material; an engagement member for suspending the skin on the padding material; the engaging member is a hook-and-loop fastener having an engaging portion provided on the skin and an engaged portion provided on the padding material and engaged with the engaging portion; The padding material is formed with a long groove for suspending the skin therein, A mounting surface for mounting the engaged portion is formed on a bottom surface of the groove, The vehicle seat, wherein at least a portion of the mounting surface is inclined with respect to a perpendicular plane perpendicular to a depth direction of the groove portion.

2. 2. The vehicle seat according to claim 1, wherein the mounting surface is inclined from one side to the other side in the longitudinal direction of the groove portion.

3. 3. The vehicle seat according to claim 2, wherein the mounting surface is inclined symmetrically about a center portion in the longitudinal direction of the groove portion.

4. 4. The vehicle seat according to claim 3, wherein the mounting surface is inclined such that the groove is deeper at both ends in the longitudinal direction than at a center portion of the groove.

5. 4. The vehicle seat according to claim 3, wherein the mounting surface is inclined such that the groove is deeper at a central portion in the longitudinal direction than at both end portions of the groove.

6. The mounting surface includes a first mounting surface provided on one side of the groove portion in the longitudinal direction, a second mounting surface provided on the other side of the groove portion in the longitudinal direction, and a third mounting surface provided between the first mounting surface and the second mounting surface in the longitudinal direction of the groove portion, the first mounting surface and the second mounting surface are each inclined with respect to the orthogonal plane; The vehicle seat according to claim 2 , wherein the third attachment surface is provided parallel to the orthogonal surface.

7. an airbag device attached to the frame and having an airbag and an inflator; a locking member which is a member different from the engaging member and which is used to suspend the cover on the padding material; the fastening member is a member other than a hook-and-loop fastener, and has a fastening portion provided on the skin and a fastened portion provided on the padding material and fastened to the fastening portion, the groove portion has a first groove portion formed at a position corresponding to the airbag device and a second groove portion formed at a position different from the first groove portion, The first groove portion is provided with the locked portion of the locking member, The vehicle seat according to claim 1 , wherein the second groove portion is provided with the engaged portion of the engaging member.

8. The locking portion of the locking member is a hook, 8. The vehicle seat according to claim 7, wherein the locked portion of the locking member is a clip that is hooked onto the hook.

9. The vehicle seat according to claim 2, characterized in that the engaged portion has an extension portion that engages with the engaging portion and extends along the longitudinal direction of the groove portion, and a pad separation prevention portion that is provided at both ends in the width direction of the extension portion and prevents the pad from separating from the pad material.

10. The vehicle seat according to claim 9, wherein the pad separation prevention portion is formed with a through hole penetrating in an extension direction of the extension portion and in an orthogonal direction perpendicular to the width direction.

11. The vehicle seat according to claim 10, wherein the through hole has a triangular shape when viewed from the orthogonal direction of the extension portion.

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