Vehicle seat

Abstract

To provide a technology which enables reduction of the number of sewing components and sewing work in an attachment portion of a seat belt buckle, an opening portion of an ISO-FIX-compliant anchor, or a lock opening portion.SOLUTION: A vehicle seat includes a seat cushion and a seat back. The seat cushion or the seat back has an application portion. The vehicle seat has an individual component which is cut into a predetermined length to match with the application portion and formed of a flexible material. The individual component and a skin material are sewn to form the application portion.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to vehicle seats, and in particular to technology that is effective when applied to vehicle seats that have an attachment portion for a seat belt buckle, an attachment portion for a standardized ISO-FIX type child seat (an opening portion for an ISO-FIX compatible anchor), or a lock opening portion for a seat lock device of a seat back that can be folded forward. [Background technology]

[0002] Known vehicle seats for rear seats include a seat belt buckle attachment portion and a standardized ISO-FIX child car seat attachment portion (an ISO-FIX anchor opening portion). The seat back of a rear seat vehicle seat that can be folded forward is equipped with a seat lock device having a lock opening portion on the side of the seat back. The folding seat back is secured to the vehicle by locking a striker provided in the vehicle into the lock opening portion of the seat lock device. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-102085 [Patent Document 2] Japanese Patent Application Laid-Open No. 2010-64636 [Patent Document 3] Japanese Patent Application Laid-Open No. 2015-227149 Summary of the Invention [Problem to be solved by the invention]

[0004] The attachment points for seat belt buckles and the openings of ISO-FIX anchors (also called strikers) tend to be made of multiple pieces of leather sewn together to maintain their shape, which increases the cost of sewing. Furthermore, the lock openings for seat lock devices tend to use plastic parts for appearance and safety, which increases the cost of parts including fixing brackets.

[0005] An object of the present invention is to provide a technology that can reduce the number of sewn parts and sewing work in the attachment portion of a seat belt buckle, the opening portion of an ISO-FIX compatible anchor, or the lock opening portion.

[0006] Other objects and novel features will become apparent from the description of this specification and the accompanying drawings. [Means for solving the problem]

[0007] A brief summary of the representative aspects of the present invention is as follows.

[0008] The vehicle seat includes a seat cushion and a seat back. The seat cushion or seat back has an application area. The seat cushion or seat back has an individual component made of a flexible material cut to a predetermined length to fit the application area. The individual component and the cover material are sewn together to form the application area. [Effects of the Invention]

[0009] According to the above-described vehicle seat, a basic part made of a flexible material that has been molded to have versatility is used, and the basic part can be cut to a predetermined length to fit the application area, and the cut basic part can be sewn together with the upholstery material, thereby reducing the number of sewn parts and the sewing work. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a perspective view showing a vehicle seat according to an embodiment. [Figure 2]Fig. 2(A) is a partial rear perspective view of the seat back, Fig. 2(B) is a partial plan view of the seat cushion and the seat back, and Fig. 2(C) is a perspective view of a gate-shaped striker provided in the vehicle. [Figure 3] FIG. 3 is a diagram illustrating basic components according to the embodiment. [Figure 4] Fig. 4(A) shows the basic part cut to a predetermined length to fit the application area, Fig. 4(B) shows the basic part with the cover material sewn to it, and Fig. 4(C) shows the basic part with the cover material 46 folded upward and then curved to fit the shape of the opening. [Figure 5] FIG. 5 is a diagram showing the basic part shown in FIG. 4(C) sewn into an opening for a seat belt buckle. [Figure 6] Fig. 6(A) shows the basic part 30 cut to a predetermined length to fit the application area. Fig. 6(B) shows the state in which the cover material 46 has been sewn to the basic part 30. Fig. 6(C) shows the state in which the cover material 46 has been folded upward and then the basic part 30 has been folded to fit the shape of the opening 16. [Figure 7] FIG. 7 is a diagram showing the state in which the basic part 30 shown in FIG. 6(C) is sewn into the opening 16 for the anchor 15. In FIG. [Figure 8] Fig. 8(A) shows the basic part 30 cut to a predetermined length to fit the application area, and Fig. 8(B) shows the basic part 30 shown in Fig. 8(A) sewn to the inside of the lock opening 18. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0012] The disclosure is merely an example, and the drawings may show the width, thickness, shape, etc. of each part more clearly than in the actual embodiment, but this is not intended to limit the interpretation of the present invention. Furthermore, in this specification and each drawing, elements similar to those previously described with reference to the previous drawings are denoted by the same reference numerals, and detailed descriptions may be omitted as appropriate. Furthermore, in the following description, unless otherwise specified, the terms front, rear, top, bottom, left, and right refer to the front, rear, top, bottom, left, and right of the vehicle. [Example]

[0013] Fig. 1 is a perspective view showing a vehicle seat according to an embodiment. The vehicle seat 10 shown in Fig. 1 has a seat back 11 constituting a backrest and a seat cushion 12 constituting a seat surface. In this example, the vehicle seat 10 is a three-seater vehicle seat for the rear seats. The seat cushion 12 and the seat back 11 are composed of a cushion pad and a trim cover that covers the cushion pad.

[0014] As shown enlarged, the seat cushion 12 is provided with three openings 14 for the seat belt buckles 13, which are provided to expose the seat belt buckles 13. The openings 14 for the seat belt buckles 13 can also be referred to as first openings 14. The lower sides of the seat belt buckles 13 are fixed to, for example, the body of the vehicle. In this example, each opening 14 has a U-shaped groove structure that is open on the side of the seat back 11 when viewed from above. The shape of the openings 14 is not limited to the U-shaped groove structure, and may be any shape that allows the seat belt buckles 13 to be exposed.

[0015] The seat back 11 is provided with four openings 16 for the anchors 15, which are provided to expose the ISO-FIX anchors 15 for attaching child seats. The openings 16 for the anchors 15 can be referred to as second openings 16. The ISO-FIX anchors 15 are fixed to the body of the vehicle, for example. In this example, each opening 16 has a rectangular hole or groove structure having four sides when viewed from the front. The shape of the openings 16 is not limited to a rectangular hole structure having four sides, and may be any shape that allows the anchors 15 to be exposed. The anchors 15 can be referred to as strikers.

[0016] 1 has a seat back 11 that can be folded forward, and a seat lock device 40 (described later) and a lock opening 18 are provided on a side surface 17 of the seat back 11. The lock opening 18 can also be referred to as a third opening 18.

[0017] The seat lock device 40 and the lock opening 18 will be described with reference to the drawings. Fig. 2(A) is a partial rear perspective view of the seat back. Fig. 2(B) is a partial plan view of the seat cushion and seat back. Fig. 2(C) is a perspective view of a gate-shaped striker provided in the vehicle.

[0018] As shown in FIG. 2(A), a seat lock device 40 is provided on the side surface 17 of the seat back 11. A lock opening 18 is provided on the side surface 17 of the seat back 11 and on the rear surface 19 of the seat back 11. In other words, the lock opening 18 is provided in a corner formed by the side surface 17 of the seat back 11 and the rear surface 19 of the seat back 11. As shown in FIGS. 2(B) and 2(C), the seat lock device 40 is configured, for example, with a gate-shaped striker 42 and a rotatable latch 44 that engages with the striker 42. The seat back 11 is fixed in an upright position by the engagement of the latch 44 with the striker 42. The latch 44 of the seat lock device 40 is provided on an upper part of the side surface of the seat back 11. The gate-shaped striker 42 is attached to a pillar 45 opposite the latch 44. The gate-shaped striker 42 is formed in a roughly U-shape with two legs (a front leg 42F and a rear leg 42R). In FIG. 2(C), Rr indicates the forward direction (front side) of the vehicle, and Fr indicates the rearward direction (rear side) of the vehicle.

[0019] Next, the configuration of the present invention will be described using FIG. 3. FIG. 3 is a diagram illustrating a basic part according to an embodiment. In the present invention, a basic part 30 is formed as shown in FIG. 3. The basic part 30 is molded with an L-shaped cross section to ensure versatility and is made of a flexible material. In other words, the basic part 30 is made of a material that is easily elastically deformed and has the characteristic of being relatively easy to cut and sew. The basic part 30 can be made of, for example, a thin resin material, an elastomer material, or a felt material. The basic part 30 has a first surface 31 that forms a vertical side surface and a second surface 32 that is connected to the first surface 31 and forms the bottom surface. The second surface 32 is arranged in a direction intersecting the first surface 31. In the example shown in FIG. 3, the first surface 31 is also arranged vertically, and the second surface 32 is arranged horizontally.

[0020] The basic component 30 has a height La of the first surface 31, a width Lb of the second surface 32, and a length Lc in the longitudinal direction (length direction) of the basic component 30. It is preferable to prepare a plurality of dimensions for the height La and the width Lb, for example, in order to adapt to the vehicle type of the vehicle. For example, although not shown, three types of basic components can be prepared, such as the first basic component 30(1), the second basic component 30(2), and the third basic component 30(3). The first basic component 30(1) has a height La1 and a width Lb1. The second basic component 30(2) has a height La2 and a width Lb2. Here, La2 is longer than La1 (La1 < La2), and Lb2 is longer than Lb1 (Lb1 < Lb2). The third basic component 30(3) has a height La3 and a width Lb3. Here, La3 is longer than La2 (La2 < La3), and Lb3 is longer than Lb2 (Lb2 < Lb3).

[0021] Regarding the length Lc, there is no particular limitation, but it can be, for example, 1 m to 2 m. The basic component 30 is used by cutting it in the length direction of the basic component 30 based on the application site.

[0022] As shown in FIG. 3, the application site is the lower part of the side wall of the opening 14 for the seat belt buckle 13, the lower part of the side wall of the opening 16 for the anchor 15, or the inner part of the lock opening 18.

[0023] In this way, the basic component 30 made of a flexible material formed to have versatility is used, and the basic component 30 is cut to a predetermined length according to the application site. Then, the cut basic component 30 and the skin material described later are sewn together to attach the basic component 30 to the application site. Thereby, the number of sewing parts and the sewing work can be reduced.

[0024] Next, a configuration example in which a cut basic part 30a is used in the lower part of the side wall of the opening 14 for the seat belt buckle 13 will be described with reference to Figures 4 and 5. Figure 4(A) shows the basic part 30 cut to a predetermined length to fit the application area. Figure 4(B) shows the basic part 30a with a cover material 46 sewn to it. Figure 4(C) shows the cover material 46 folded upward, and then the basic part 30a curved to fit the shape of the opening 14. Figure 5 shows the basic part 30a shown in Figure 4(C) sewn to the opening 14 for the seat belt buckle 13.

[0025] As shown in FIG. 4(A), the length Lc of the basic component 30 shown in FIG. 3 is cut to a predetermined length Lca to form a cut basic component (also referred to as a first individual component) 30a. The length Lca of the basic component 30a is equal to the length of the side wall of the U-shape when the opening 14 is viewed from above. The height La of the first surface 31 and the width Lb of the second surface 32 of the basic component 30a are set to appropriate dimensions for the opening 14, which is the application site. The second surface 32 is cut, and two notches 35 are provided in the second surface 32. The notches 35 are provided to curve the basic component 30a.

[0026] Next, as shown in Fig. 4(B), one end of the skin material 46 is sewn to the upper side of the first surface 31 of the basic part 30a with sewing thread 47. One end of the skin material 46 is sewn to a length Lca on the upper side (upper or one end) of the first surface 31. The first surface 31 has one end and the other end (lower or lower side: the side of the connecting portion of the second surface 32) that faces the one end.

[0027] Next, as shown in Fig. 4(C), the other end of the skin material 46, which was located on the lower side in Fig. 4(B), is lifted upward, and the cut basic part 30a is curved so that the sewing thread 47 on the first surface 31 faces outward. The basic part 30a is curved to match the shape of the opening 14 so that it is U-shaped when viewed from above.

[0028] 5, the basic part 30a shown in FIG. 4(C) is fitted into the opening 14 for the seat belt buckle 13, and the cover material 46 is sewn to the cover material (trim cover) 50 of the seat cushion 12 with sewing thread. In FIG. 5, the sewing thread that sews the cover material 46 and the cover material 50 together is not shown. The upper surface of the second surface 32 of the basic part 30a is fixed to the back surface side of the cushion pad 51 of the seat cushion 12.

[0029] The inner side wall of the U-shaped groove of the opening 14 is configured such that the upper side is made up of the skin material 46 and the lower side is made up of the first surface 31 of the basic part 30a.

[0030] In this way, the cut basic part 30a is located below (at the back of) the U-shaped groove when the opening 14 is viewed from above, and is therefore inconspicuous. Furthermore, by arranging the basic part 30a made of a flexible material below the U-shaped groove of the opening 14, it is possible to easily form the U-shaped groove shape. Furthermore, the amount of skin stitching can be reduced. Furthermore, since the basic part 30a made of a flexible material can be sewn together with the skin material 46, the number of sewn parts and the amount of sewing work can be reduced.

[0031] Next, a configuration example in which a cut basic part 30b is used in the lower part of the side wall of the opening 16 for the anchor 15 will be described with reference to Figures 6 and 7. Figure 6(A) shows the state in which the basic part 30 has been cut to a predetermined length to match the application site. Figure 6(B) shows the state in which a skin material 46 has been sewn to the basic part 30b. Figure 6(C) shows the state in which the skin material 46 has been folded upward and then the basic part 30b has been folded to match the shape of the opening 16. Figure 7 shows the state in which the basic part 30b shown in Figure 6(C) has been sewn to the opening 16 for the anchor 15.

[0032] As shown in FIG. 6(A), the length Lc of the basic part 30 shown in FIG. 3 is cut to a predetermined length Lcb to form a cut basic part (also referred to as a second individual part) 30b. The length Lcb of the basic part 30b is equal to the length of the three rectangular side walls of the opening 16 when viewed from above. The height La of the first surface 31 and the width Lb of the second surface 32 of the basic part 30b are set to dimensions appropriate for the opening 16, which is the application site. The second surface 32 is cut, and two notches 35 are provided in the second surface 32. The notches 35 are provided for bending the cut basic part 30b.

[0033] Next, as shown in FIG. 6(B), one end of the skin material 46 is sewn with sewing thread 47 to the upper side of the first surface 31 of the cut basic part 30b. One end of the skin material 46 is sewn to a length Lcb on the upper side (upper or one end) of the first surface 31. The first surface 31 has one end and the other end (lower or lower side: the side of the connecting portion of the second surface 32) opposing the one end. In addition, a circular cutout portion 60 is provided in the second surface 32.

[0034] Next, as shown in Fig. 6(C), the other end of the skin material 46 that was located on the lower side in Fig. 6(B) is lifted upward, and the cut basic part 30b is folded so that the sewing thread 47 on the first surface 31 faces outward. The basic part 30b is folded to fit the shape of the opening 16 so that it has a rectangular shape when viewed from the front. That is, in this example, the basic part 30b is folded so as to correspond to three consecutive side walls of the rectangular shape. Note that the basic part 30b can also be configured so as to be folded so as to correspond to four consecutive side walls of the rectangular shape.

[0035] As shown in Fig. 7, the basic part 30b shown in Fig. 6(C) is fitted into the opening 16 for the anchor 15, and the cover material 46 is sewn to the cover material (trim cover) 70 of the seat back 11 with sewing thread. In Fig. 7, the sewing thread that sews the cover material 46 and the cover material 70 together is not shown. The upper surface of the second surface 32 of the basic part 30b is fixed to the back side of the cushion pad 71 of the seat back 11, for example.

[0036] The inner sidewall of the rectangular groove of the opening 14 is configured with the skin material 46 on the front side (front side) and the first surface 31 of the basic part 30b on the back side (rear side).

[0037] In this way, when the opening 16 is viewed from the front, the cut basic part 30b is located at the back (rear side) of the rectangular groove, and is arranged in an inconspicuous position. By arranging the basic part 30b made of a flexible material below the rectangular groove of the opening 16, the rigidity of the opening 16 as a slit portion into which the anchor 15 is inserted can be increased. In addition, the shape of the rectangular groove can be easily formed. In addition, the amount of skin stitching can be reduced. Furthermore, since the basic part 30b made of a flexible material can be sewn together with the skin material 46, the number of sewn parts and the sewing work can be reduced.

[0038] Next, a configuration example in which a basic part 30c is used on the inside of the lock opening 18 will be described with reference to Fig. 8. Fig. 8(A) shows the state in which the basic part 30 is cut to a predetermined length to fit the application area. Fig. 8(B) shows the state in which the basic part 30 shown in Fig. 8(A) is sewn to the inside of the lock opening 18.

[0039] As shown in FIG. 8(A), the length Lc of the basic part 30 shown in FIG. 3 is cut to a predetermined length Lcc to form a cut basic part (also referred to as a third individual part) 30c. The length Lcc of the basic part 30c is designed to be applicable to the inner portion of the lock opening 18. The height La of the first surface 31 and the width Lb of the second surface 32 of the basic part 30c are dimensional values ​​appropriate for the lock opening 18, which is the application area. An opening 80 is provided in the first surface 31 and the second surface 32 of the basic part 30c. The opening 80 coincides with the lock opening 18.

[0040] As shown in FIG. 8(B), the basic part 30c shown in FIG. 8(A) is arranged inside an opening 82 formed in a skin material (trim cover) 83 of the seat back 11 so that the edge of the periphery of an opening 80 formed in the basic part 30c is visible from the back side of the skin material (trim cover), and is sewn to the skin material 83 with sewing thread 81. The skin material 83 is arranged on the side surface 17 of the seat back 11 so that the bottom surface of the first surface 31 of the basic part 30c contacts the back side of the skin material 83. The skin material 83 is arranged on the back surface 19 of the seat back 11 so that the bottom surface of the second surface 32 of the basic part 30c contacts the back side of the skin material 83. The skin material 83 is arranged to cover the front side of a cushion pad 84 of the seat back 11. In addition, the skin material 83 may be arranged so that the bottom surface of the second surface 32 of the basic part 30c is located on the back side of the skin material 83 on the side surface 17 of the seat back 11, and the bottom surface of the first surface 31 of the basic part 30c is located on the back side of the skin material 83 on the back surface 19 of the seat back 11.

[0041] In this way, by providing the basic part 30c made of a flexible material on the inside portion of the lock opening 18, it is possible to increase the rigidity of the lock opening 18 as a slit portion through which the striker 42 passes. It also becomes easier to form the shape of the lock opening 18. Because the basic part 30c made of a flexible material can be sewn together with the cover material 83, it is possible to reduce the number of sewn parts and the sewing work.

[0042] According to the vehicle seat 10 of the embodiment, the basic parts 30 are made of a flexible material that is molded to be versatile, and the basic parts 30 can be cut to a predetermined length (Lca, ​​Lcb, Lcc) to fit the application area (14, 16, 18), and the cut basic parts (30a, 30b, 30c) can be sewn together with the upholstery material (46, 46, 83), thereby reducing the number of sewn parts and the sewing work.

[0043] The invention made by the inventor has been specifically described above based on examples, but it goes without saying that the present invention is not limited to the above-described embodiments and examples, and various modifications are possible. [Explanation of symbols]

[0044] 10: Vehicle seats 11: Seat back 12: Seat cushion 13: Seatbelt buckle 14: Opening 15: Anchor 16: Opening 18: Lock opening 30: Basic parts 30a, 30b, 30c: Basic parts cut to fit the application area

Claims

1. Seat cushion and A seat back; The seat cushion or the seat back has an application portion, The device has individual parts made of a flexible material and cut to a predetermined length according to the application site, The application portion is formed by sewing the individual parts and the skin material together, The individual components are formed by cutting a basic component made of a flexible material molded to have versatility, The individual component has an L-shaped cross-sectional shape having a first surface and a second surface connected to the first surface and disposed in a direction intersecting the first surface.

2. In claim 1, The seat cushion and the seat back include a cushion pad and a trim cover that covers the cushion pad, The application site has an opening in a groove structure having a sidewall, the first surface of the discrete component is disposed on the sidewall; The second surface of the individual component is fixed to a lower side or a rear side of the cushion pad.

3. In claim 2, the first surface of the individual component has one end and another end opposite the one end and to which the second surface is connected; The skin material constituting the side wall is sewn to the one end with a sewing thread, The first surface is disposed on a rear side of the groove structure.

4. In claim 3, The opening is an opening for a seat belt buckle.

5. In claim 3, The opening is an opening for attaching a child seat.

6. A seat cushion, A seat back; The seat cushion or the seat back has an application portion, The device has individual parts made of a flexible material and cut to a predetermined length according to the application site, The application portion is formed by sewing the individual parts and the skin material together, The individual components are formed by cutting a basic component made of a flexible material molded to have versatility, the individual component has an L-shaped cross-sectional shape having a first surface and a second surface connected to the first surface and disposed in a direction intersecting the first surface; a first opening is provided in the first surface and the second surface of the individual component; The seat back includes a back surface, a side surface, and a lock opening provided in the side surface and the back surface, the individual part is arranged in the lock opening, inside a second opening provided in the trim cover, such that a peripheral edge portion of the first opening provided in the individual part is visible from the back side of the trim cover which is a cover material of the seat back, and is sewn to the trim cover with sewing thread.

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