Vehicle seat

Abstract

To provide a vehicle seat capable of securing a wide space for a rear seat while reducing manufacturing cost.SOLUTION: A recessed part 52 recessed to the front side is formed on the back surface skin 5a by pulling the back surface skin 5a to the front side by a pair of suspenders 7a and 7b spaced apart in the vertical direction and a pair of hooks 8a and 8b spaced apart in the lateral direction. Accordingly, the recess can be formed on the rear surface of the seat back 3 (the back frame 30) without using a resin panel board. Therefore, it is possible to secure a wide space for the occupant sitting on the seat behind the vehicle seat 1 while reducing the manufacturing cost of the vehicle seat 1.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a vehicle seat, and more particularly to a vehicle seat that can ensure a large rear seat space while reducing manufacturing costs. [Background technology]

[0002] For example, Patent Document 1 describes a technology for covering the rear side of a seat back 3 with a seat back board 21 that includes a plate member 22 and a skin material 23 joined to the plate member 22. The plate member 22 is formed with a recessed portion 33 that is recessed toward the front side, so that a large space can be secured for passengers sitting in seats behind the seat back 3. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-104403 A (for example, paragraphs 0020 to 0023, 0027, Figures 2 and 3) Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the conventional technology described above, since the backboard 21 covers almost the entire rear surface of the seat back 3, it is necessary to form the resin plate member 22 in a relatively large size, which poses a problem of increased manufacturing costs for the vehicle seat.

[0005] The present invention has been made to solve the above-mentioned problems, and aims to provide a vehicle seat that can ensure a large space in the rear seat while reducing manufacturing costs. [Means for solving the problem]

[0006] In order to achieve this object, the vehicle seat of the present invention comprises a seat pad, a back frame having a support member that supports the seat pad on the front side, a back skin that covers the rear side of the back frame, and a hanging member that connects the back skin to at least one of the support member and an engaging member embedded in the seat pad, wherein the hanging member is composed of at least a pair of first hanging members that are spaced apart in the vertical direction and a pair of second hanging members that are spaced apart in the horizontal direction, and when the back skin is pulled forward by the first hanging member and the second hanging member, a recess that is recessed toward the front side is formed in the back skin. [Effects of the Invention]

[0007] According to the vehicle seat described in claim 1, the hanging member connecting the back cover to at least one of the support member and the engaging member embedded in the seat pad is composed of at least a pair of first hanging members spaced apart in the vertical direction and a pair of second hanging members spaced apart in the horizontal direction. The first and second hanging members pull the back cover forward, forming a recess that recesses forward in the back cover. This allows the recess to be formed on the back side of the seat back without using a resin panel board. This has the effect of reducing the manufacturing cost of the vehicle seat while ensuring ample space for passengers sitting in the rear seats of the vehicle seat.

[0008] The vehicle seat according to claim 2 achieves the following effect in addition to the effect achieved by the vehicle seat according to claim 1. At least one of the first hanging member and the second hanging member connects the back surface of the seat pad to the support member, so that the support member can have the function of pulling the back surface of the seat pad forward in addition to the function of supporting the seat pad. In other words, since it is not necessary to provide a separate part for pulling the back surface of the seat pad forward, there is an effect that the manufacturing cost of the vehicle seat can be reduced.

[0009] The vehicle seat of claim 3 achieves the following effect in addition to the effect achieved by the vehicle seat of claim 1. At least one of the first and second hanging members connects the back cover to an engaging member embedded in the seat pad, so by changing the embedding position of the engaging member relative to the seat pad, the arrangement of the engaging member can be easily adjusted according to the arrangement of the first and second hanging members. Therefore, there is little restriction on the arrangement of the first and second hanging members, which has the effect of improving the degree of freedom in designing the vehicle seat.

[0010] The vehicle seat of claim 4 achieves the following effect in addition to the effect achieved by the vehicle seat of claim 1. The back surface skin has a rectangular bottom surface skin that forms the bottom surface of the recess, and the back surface skin has first and second seams along the two upper and lower sides of the bottom surface skin, and third and fourth seams along the two left and right sides of the bottom surface skin. The pair of first hanging members pull the first and second seams forward, and the pair of second hanging members pull the third and fourth seams forward, making it easier for each of the four sides of the bottom surface skin to be pulled forward. This makes it less likely for the bottom surface skin to wrinkle, which has the effect of improving the appearance of the vehicle seat.

[0011] The vehicle seat of claim 5 achieves the following effect in addition to the effect achieved by the vehicle seat of claim 4. The rear cover has fifth and sixth seams that extend below the bottom cover along the third and fourth seams, and a pair of first suspending members are sewn to the seam allowances of the first and second seams, while a pair of second suspending members are sewn to the seam allowances of the fifth and sixth seams. This allows the first to fourth seams along the four sides of the bottom cover to be pulled forward by the first and second suspending members, while also allowing the fifth and sixth seams, which are located below the bottom cover, to be pulled forward directly by the second suspending members. This prevents the bottom cover from wrinkling and increases the area of ​​the rear cover that is pulled forward. This improves the appearance of the vehicle seat while providing ample space for passengers sitting in the rear seats of the vehicle seat.

[0012] The vehicle seat of claim 6 achieves the following effect in addition to the effect achieved by the vehicle seat of claim 5. Because the first suspending member, which is inclined upward toward the front and upper side, pulls the first seam and the second seam forward, the two upper and lower sides of the bottom skin along the first and second seams are easily pulled upward. Meanwhile, because the second suspending member is sewn to the fifth and sixth seams, which extend below the third and fourth seams, as described above, the two left and right sides of the bottom skin along the third and fourth seams are easily pulled downward. Pulling the two upper and lower sides of the bottom skin upward and the two left and right sides downward in this way makes it less likely for wrinkles to form in the bottom skin. This has the effect of improving the appearance of the vehicle seat.

[0013] According to the vehicle seat of claim 7, in addition to the effect of the vehicle seat of claim 4, the bottom skin is pulled forward from the first imaginary plane that contacts the rear surfaces of the upper and lower ends of the seat back, so that the recess formed in the back skin can be made deeper, thereby providing the effect of ensuring a wide space for passengers sitting in the rear seats of the vehicle seat.

[0014] The vehicle seat of claim 8 achieves the following effect in addition to the effect achieved by the vehicle seat of claim 7. The back frame includes a pair of left and right side frames extending in the vertical direction, an upper frame connecting the upper ends of the pair of side frames to the left and right, and a lower frame connecting the lower ends of the pair of side frames to the left and right. Because the bottom skin is pulled forward of a second imaginary plane that contacts the upper frame and the lower frame on the rear side of the back frame, the recess formed in the back skin can be made deeper. This has the effect of ensuring more space for occupants sitting in seats at the rear of the vehicle seat. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 2 is a rear perspective view of the vehicle seat. [Figure 2] 2 is a rear view of the vehicle seat as seen in a direction II in FIG. 1. FIG. [Figure 3] 3 is a partially enlarged cross-sectional view of the vehicle seat taken along line III-III in FIG. 2. [Figure 4] 4 is a partially enlarged cross-sectional view of the vehicle seat taken along line IV-IV in FIG. 2. FIG. [Figure 5] 4 is a partially enlarged cross-sectional view of a vehicle seat in FIG. 3. FIG. [Figure 6] 6 is a partially enlarged cross-sectional view of the vehicle seat showing a state in which an item has been inserted into a rear pocket from the state shown in FIG. 5. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0016] A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. First, the overall configuration of a vehicle seat 1 will be described with reference to Fig. 1. Fig. 1 is a rear perspective view of the vehicle seat 1. Note that Fig. 1 illustrates a state in which a cover (such as the rear cover 5a shown in Fig. 2) covering the seat back 3 has been removed. The directions of arrows UD, LR, and FB in Fig. 1 indicate the up-down direction, left-right direction, and front-rear direction of the vehicle seat 1, respectively (the same applies to the subsequent figures).

[0017] As shown in Fig. 1, a vehicle seat 1 is a seat installed in a vehicle such as an automobile, and includes a seat cushion 2 that forms the seat surface. A back frame 30 of a seat back 3 is connected to the rear end (end on the side of arrow B) of the seat cushion 2 via a reclining device so as to be able to tilt.

[0018] The back frame 30 includes side frames 30a extending in the up-down direction (the direction of the arrows UD), and the side frames 30a are provided in pairs spaced apart on the left and right (the direction of the arrows LR). The lower end portions of the pair of side frames 30a are connected by a lower panel 30b extending laterally. The upper end portions of the pair of side frames 30a are connected by an upper frame 30c (see FIG. 3) extending laterally.

[0019] The side frames 30a, the lower panel 30b, and the upper frame 30c that make up the back frame 30 form a substantially rectangular (trapezoidal) frame, and horizontal wires 30d and vertical wires 30e made of steel are attached to the inside of this frame.

[0020] The horizontal wire 30d is an S-spring that spans a pair of left and right side frames 30a. A plurality of horizontal wires 30d (six in this embodiment) are arranged in the vertical direction, and a vertical wire 30e that extends linearly in the vertical direction is connected to each of the horizontal wires 30d. A plurality of vertical wires 30e (three in this embodiment) are arranged in the horizontal direction, and each of these wires 30d, 30e supports a portion of the seat pad 31 (back pad) that forms the backrest.

[0021] The seat pad 31 is formed using a foam (soft foam) such as soft polyurethane foam, and multiple recesses 31a are formed on the rear surface of the seat pad 31. If four recesses 31a aligned in the left-right direction are considered to be one row, then two rows (eight in total) of recesses 31a are provided, one above the other, and each of these recesses 31a is provided with a back wire 31b (see the enlarged portion in Figure 1) extending in the left-right direction.

[0022] Although not shown in the drawings, each of the back wires 31b provided in the four recesses 31a aligned in a row on the left and right is formed by a single straight wire embedded in the seat pad 31. The cover is attached using the back wires 31b provided in the seat pad 31 and the vertical wires 30e provided in the back frame 30.

[0023] In the following description, of the skins covering the back frame 30 (seat pad 31), the one covering the rear side of the back frame 30 will be referred to as the back skin 5a (see FIG. 2), and the one covering the front side will be referred to as the front skin 5b (see FIG. 3). Each of these skins 5a, 5b is made of fabric, synthetic leather, leather, or the like.

[0024] Next, a detailed configuration of the vehicle seat 1 will be described with reference to Figures 2 to 4. Figure 2 is a rear view of the vehicle seat 1 as seen in the direction of arrow II in Figure 1, Figure 3 is a partially enlarged cross-sectional view of the vehicle seat 1 taken along line III-III in Figure 2, and Figure 4 is a partially enlarged cross-sectional view of the vehicle seat 1 taken along line IV-IV in Figure 2. Note that Figure 2 does not show the rear pocket 6 (see Figure 3) attached to the rear cover 5a. Also, Figures 3 and 4 show only the cross section (end face) of the vehicle seat 1 (the same applies to Figures 5 and 6), but in Figures 3 and 4, hatching of the cross sections of some parts (such as the rear cover 5a and suspenders 7a to 7c) is omitted to simplify the drawings.

[0025] 2, the back surface skin 5a is composed of a rectangular first surface skin 50a arranged in an area including the center in the left-right direction (arrow LR direction) of the back surface 5a, and second to fifth surface skins 50b to 50e surrounding the four sides of the first surface skin 50a. The second surface skin 50b is located above the first surface skin 50a (arrow U side), the third surface skin 50c is located below it (arrow D side), the fourth surface skin 50d is located to the left of the first surface skin 50a in a rear view of the vehicle seat 1 (back frame 30), and the fifth surface skin 50e is located to the right.

[0026] The second skin 50b is formed by sewing two skins arranged vertically together, but is shown as a single skin in Fig. 2. The fourth and fifth skins 50d, 50e are also each formed by sewing two skins arranged horizontally together, but are shown as a single skin in Fig. 2.

[0027] Seams 51a and 51b (boundaries between the skins) are formed between the first skin 50a and the second and third skins 50b and 50c, respectively, by sewing together the ends of these skins. Also, seams 51c and 51d are formed between the first skin 50a and the fourth and fifth skins 50d and 50e, respectively, by sewing together the ends of these skins.

[0028] The third skin 50c is formed in a rectangular shape with the same left-right dimensions as the first skin 50a, and the seams 51e, 51f that sew together the ends of the third skin 50c and the fourth and fifth skins 50d, 50e extend vertically so as to extend downward the left and right seams 51c, 51d of the first skin 50a.

[0029] As shown in FIGS. 2 and 3, suspenders 7a and 7b are sewn to the seam allowances (terminal ends of the first to third skins 50a to 50c) between the first skin 50a and the second and third skins 50b and 50c at the seams 51a and 51b.

[0030] The suspenders 7a and 7b are formed in the shape of a sheet (flat plate) using flexible resin, felt, or the like, and four protrusions 70 are formed on the front edge (end on the arrow F side) of the suspenders 7a, aligned in the left-right direction (arrow LR direction). These multiple protrusions 70 are formed at positions corresponding to recesses 31a (see enlarged portion in Figure 3) provided on the rear surface of the seat pad 31.

[0031] Furthermore, four mounting holes 71 are formed in the suspenders 7a and 7b, aligned on the left and right, and these mounting holes 71 are formed in positions aligned with the protrusions 70 in the front-to-rear direction (the direction of the arrow FB). As shown in the enlarged portion of Figure 3, with the protrusions 70 inserted into the recesses 31a of the seat pad 31, a C-shaped hook member 9 (hog ring) is passed through the mounting holes 71 and crimped to hook onto the back wire 31b, whereby the seam allowances of the seams 51a and 51b are pulled forward (towards the arrow F).

[0032] As shown in Figures 2 and 4, a J-shaped hook 8a is sewn to the seam allowance of the third and fourth upholstery layers 50c, 50d at seam 51e. A hook 8b is also provided at seam 51f (seam allowance of the third and fifth upholstery layers 50c, 50e) shown in Figure 2, with a structure similar to that of hook 8a shown in Figure 4. The hooks 8a, 8b are provided in pairs, spaced apart above and below (in the direction of the arrows UD) (see Figure 2).

[0033] The hooks 8a and 8b are hooked onto the vertical wire 30e (see FIG. 4) of the back frame 30, thereby pulling the seams 51e and 51f forward (toward arrow F). Because the seam allowances of the seams 51e and 51f are connected (sewn) to the seam allowances of the left and right seams 51c and 51d of the first upholstery 50a, the hooks 8a and 8b also pull the seams 51c and 51d forward.

[0034] The retraction structure of the back skin 5a by the suspenders 7a, 7b and hooks 8a, 8b forms a recess 52 (see FIGS. 3 and 4) in the back skin 5a, with the first skin 50a (third skin 50c) as the bottom surface.

[0035] In this manner, in this embodiment, the rear surface skin 5a is pulled in by the pair of suspenders 7a, 7b spaced apart in the vertical direction and the pair of hooks 8a, 8b spaced apart in the horizontal direction, thereby forming a recess 52 recessed forward in the rear surface skin 5a. This makes it possible to form a recess in the rear surface of the seat back 3 without using a resin panel board. Therefore, it is possible to reduce the manufacturing cost of the vehicle seat 1 and ensure ample space for passengers sitting in seats at the rear of the vehicle seat 1.

[0036] Furthermore, since the hooks 8a and 8b connect the rear surface skin 5a to the vertical wire 30e (see FIG. 4) that supports the seat pad 31, the vertical wire 30e can have the function of pulling the rear surface skin 5a forward in addition to the function of supporting the seat pad 31. Therefore, for example, it is not necessary to embed an additional rear surface wire 31b in the seat pad 31 for pulling in the rear surface skin 5a, and the manufacturing cost of the vehicle seat 1 can be reduced.

[0037] On the other hand, since the suspenders 7a, 7b connect the back surface 5a to the back wire 31b (see FIG. 3) embedded in the seat pad 31, the arrangement of the back wire 31b can be easily adjusted in accordance with the arrangement (for example, the mounting height) of the suspenders 7a, 7b by changing the embedding position of the back wire 31b in the seat pad 31. Therefore, there are fewer restrictions on the arrangement of the suspenders 7a, 7b (the positions of the seams 51a, 51b), and the degree of freedom in designing the vehicle seat 1 can be improved.

[0038] Furthermore, by connecting the back surface skin 5a to the back wire 31b embedded in the seat pad 31, the seat pad 31 can be pulled rearward by the back surface skin 5a. This allows the seat pad 31 to be pressed against the horizontal wire 30d (see the enlarged portion in FIG. 3) and vertical wire 30e (see FIG. 4) of the back frame 30. Therefore, the seat pad 31 can be stably supported by these wires 30d, 30e (back frame 30).

[0039] The front skin 5b covering the front side of the seat pad 31 is pulled rearward by suspenders 7c (see enlarged portion in Figure 3). The suspenders 7c have the same configuration as the suspenders 7a and 7b described above. A recess 31c extending in the left-right direction is formed in the front of the seat pad 31, and a front wire 31d extending in the left-right direction is embedded in this recess 31c. The front wire 31d and the suspenders 7c are connected by hook members 9, so that the front skin 5b is pulled rearward.

[0040] In this manner, in this embodiment, the rear surface skin 5a and the front surface skin 5b are connected to the rear wire 31b and the front wire 31d (on both the front and rear surfaces of the seat pad 31) of the seat pad 31, respectively. This effectively prevents the relative positions of the skins 5a, 5b and the seat pad 31 from shifting.

[0041] Furthermore, the rear wire 31b that pulls in the rear skin 5a is embedded at a position that is offset in the vertical direction from the front wire 31d that pulls in the front skin 5b. That is, the recess 31a formed on the rear surface of the seat pad 31 and the recess 31c formed on the front surface are formed at positions that do not overlap in the thickness direction of the seat pad 31 (the direction of the arrow FB), thereby preventing the thickness of the seat pad 31 from becoming locally thin. This allows the cushioning properties of the seat pad 31 to be uniform.

[0042] Here, a back pocket 6 for storing an item S (see FIG. 6) is sewn to the rear surface of the back skin 5a. The upper end of the back pocket 6 is located above the seam 51b (see the enlarged portion of FIG. 3), and the third skin 51c is covered by the back pocket 6, while the first skin 50a is exposed above the back pocket 6. For this reason, in order to improve the appearance of the rear side of the seat back 3, it is required that the first skin 50a does not wrinkle.

[0043] Therefore, in this embodiment, the seam allowances of seams 51a, 51b along the upper and lower edges (two sides) of first upholstery 50a are pulled forward by suspenders 7a, 7b, and the seam allowances of seams 51c to 51f along the left and right edges (two sides) of first upholstery 50a are pulled forward by hooks 8a, 8b (see FIG. 2). By pulling the four sides of first upholstery 50a forward in this way, wrinkles are less likely to form in first upholstery 50a. This improves the appearance of vehicle seat 1.

[0044] Furthermore, since the first upholstery 50a is formed in a rectangular shape that is long in the left-right direction, in order to reduce wrinkles in the first upholstery 50a, it is preferable to pull the seams 51a, 51b (which are relatively long and extend left and right) along the long sides of the first upholstery 50a forward. Therefore, in this embodiment, suspenders 7a, 7b extending left and right along the seam allowances of the seams 51a, 51b are sewn, and a structure is adopted in which the suspenders 7a, 7b directly pull the seams 51a, 51b (the long side portions of the first upholstery 50a) forward. This effectively prevents wrinkles from forming in the first upholstery 50a, thereby improving the appearance of the vehicle seat 1.

[0045] In this way, when the purpose is to reduce wrinkles that occur in the first upholstery 50a, it is also possible to directly pull each of the seams 51a to 51d along the four sides of the first upholstery 50a forward using suspenders 7a, 7b or hooks 8a, 8b.

[0046] One example of such a configuration is one in which the hooks 8a, 8b sewn to the seam allowances of the seams 51e, 51f are omitted, and the seams 51c, 51d are directly pulled forward by hooks or suspenders sewn to the seam allowances of the seams 51c, 51d. However, this configuration reduces the area (surface area) of the back surface skin 5a that is pulled forward. Therefore, it is not possible to ensure a large seating space in the rear of the vehicle seat 1.

[0047] As another example, in addition to the suspenders 7a, 7b and hooks 8a, 8b, hooks or suspenders sewn to the seam allowances of the seams 51c, 51d are used to directly pull the seams 51c, 51d forward. This configuration reduces wrinkles in the first upholstery 50a and increases the area of ​​the back upholstery 5a that is pulled forward, but it increases the number of parts.

[0048] In contrast, in this embodiment, the suspenders 7a, 7b are sewn to the seam allowances of seams 51a, 51b along the top and bottom sides of the first upholstery 50a, while the hooks 8a, 8b are sewn to the seam allowances of seams 51e, 51f extending downward from the left and right sides of the first upholstery 50a, and no suspenders or hooks are provided on the left and right seams 51c, 51d of the first upholstery 50a. With this configuration, it is possible to reduce the number of parts while simultaneously reducing wrinkles that occur in the first upholstery 50a and widening the area of ​​the back upholstery 5a that is pulled forward.

[0049] Furthermore, the suspenders 7a, 7b tilt upward and forward, pulling the seams 51a, 51b forward (see the enlarged portion of FIG. 3), making it easier for the upper and lower edges of the first upholstery 50a to be pulled upward. As described above, the hooks 8a, 8b pull the seams 51e, 51f extending downward from the left and right edges of the first upholstery 50a forward (see FIG. 2), making it easier for the left and right edges of the first upholstery 50a to be pulled downward. Pulling the upper and lower edges of the first upholstery 50a upward and the left and right edges downward in this way effectively prevents the first upholstery 50a from wrinkling. This improves the appearance of the vehicle seat 1.

[0050] Here, an imaginary plane that is in contact with the outermost contour of the upper rear surface of the seat back 3 and the outermost contour of the lower rear surface, i.e., the imaginary plane that is in contact with the rear surface of the upper end side (rear surface skin 5a) of the seat back 3 and the rear surface of the lower end side (carpet 11, which will be described later in FIG. 5), is defined as imaginary plane V1 (see FIG. 3). When defined in this way, the first surface skin 50a is pulled forward of imaginary plane V1, so that the recess 52 formed in the rear surface skin 5a can be made deeper. This ensures a large space for occupants sitting in the rear seats of the vehicle seat 1.

[0051] In particular, in this embodiment, the first skin 50a is retracted in front of an imaginary plane V2, which is located further forward than the imaginary plane V1. This imaginary plane V2 will be described in detail. The lower panel 30b (see FIG. 3), which connects the pair of left and right side frames 30a (see FIG. 1), covers the lower frame 30f from the rear side. Like the lower panel 30b, the lower frame 30f is a frame that extends left and right (in the direction perpendicular to the plane of FIG. 3) and connects the lower ends of the pair of side frames 30a.

[0052] Hereinafter, the lower panel 30b and the lower frame 30f (the frame constituting the lower end portion of the back frame 30) are collectively defined as the lower frame, and the imaginary plane that contacts the upper frame 30c (upper frame) and the lower frame on the rear side of the back frame 30 is defined as imaginary plane V2 (see Figure 3) for explanation.

[0053] When defined in this manner, the first skin 50a (the bottom surface of the recessed portion 52) is recessed forward of the imaginary plane V2. Note that, although the imaginary plane V2 that contacts the upper frame 30c and the lower frame 30f is depicted in Fig. 3, the first skin 50a is also recessed forward of the imaginary plane when a imaginary plane that contacts the upper frame 30c and the lower panel 30b on the rear surface side of the back frame 30 is depicted. This allows the recessed portion 52 formed in the back skin 5a to be deeper, thereby ensuring a larger space for occupants sitting in seats at the rear of the vehicle seat 1.

[0054] As described above, in this embodiment, the recess 52 is formed only by the back surface skin 5a, without using a resin panel board. With such a structure, the manufacturing cost of the vehicle seat 1 can be reduced, while when an item S (see FIG. 6) is inserted into the back pocket 6, the back surface skin 5a is easily deformed forward as it is pushed into the item S. As a result, the lower panel 30b provided inside the seat back 3 and parts such as a harness connector (not shown) attached to the lower panel 30b (hereinafter referred to as "parts such as the lower panel 30b") are likely to interfere with the storage of the item S.

[0055] In particular, in this embodiment, the first skin 50a is recessed forward of the above-mentioned imaginary planes V1 and V2 (see FIG. 3), and the recess 52 is formed relatively deep, so that components such as the lower panel 30b are likely to interfere with the item S when the item S is inserted into the back pocket 6. If such interference occurs, the storability of the item S in the back pocket 6 will deteriorate, so in this embodiment, a configuration is adopted in which the components such as the lower panel 30b are covered from the rear side by a shielding plate 10 (see FIG. 5). The detailed configuration of this shielding plate 10 will be described with reference to FIGS. 5 and 6.

[0056] Figure 5 is a partially enlarged cross-sectional view of the vehicle seat 1, enlarging a portion of Figure 3, and Figure 6 is a partially enlarged cross-sectional view of the vehicle seat 1, showing the state in which an item S has been inserted into the rear pocket 6 from the state shown in Figure 5.

[0057] 5, the vehicle seat 1 includes a shielding plate 10 that covers components such as the lower panel 30b from the rear side. The shielding plate 10 is formed in a plate shape using a resin that has higher bending rigidity than the rear surface 5a and is softer than the lower panel 30b (for example, a Shore hardness of 50 or more and 100 or less).

[0058] The lower end of the back skin 5a (third skin 50c) is sewn (connected) to the central portion in the up-down direction (direction of the arrow UD) of the rear surface of the shielding plate 10. The shielding plate 10 has an exposed portion 100 that extends downward from a stitching position P1 with the back skin 5a and is exposed from the back skin 5a, and an extended portion 101 that extends upward from the stitching position P1.

[0059] The exposed portion 100 is a portion that covers the seat cushion 2 from the rear side, and the rear surface of the exposed portion 100 (the surface facing the arrow B side) is covered with a carpet 11. The carpet 11 is formed into a sheet shape using nonwoven fabric or the like, and the upper end of the carpet 11 is sewn between the back surface skin 5a (third surface skin 50c) and the shielding plate 10 at sewing position P1. In addition, the lower end of the back pocket 6 is also sewn to the back surface of the back surface skin 5a at sewing position P1.

[0060] The extension 101 extends upward from the stitching position P1 between the shielding plate 10 and the back skin 5a toward the inside of the back skin 5a, and the upper end of the extension 101 is located higher than the lower panel 30b. As a result, as shown in FIG. 6 , when an item S is inserted into the back pocket 6 and the back skin 5a (third skin 50c) is pushed in by the item S, the extension 101 of the shielding plate 10 deforms and bends forward together with the back skin 5a. This forward bending of the shielding plate 10 (extension 101) prevents the shielding plate 10 from contacting components such as the lower panel 30b, and also guides the insertion of the item S toward the back of the back pocket 6 along the shielding plate 10 (extension 101). This improves the storability of the item S in the back pocket 6.

[0061] When such an extension 101 is provided inside the back surface skin 5a, there is a risk that the extension 101 may be deformed due to the heat effect from electrical equipment (such as a seat heater) provided inside the seat back 3. If the deformation of the extension 101 causes wrinkles in the back surface skin 5a, the appearance of the vehicle seat 1 will be impaired.

[0062] In contrast, in this embodiment, the upper end of the extension 101 is located lower than the upper end of the back pocket 6, so even if the extension 101 is deformed due to the heat from the electrical components, wrinkles in the back surface 5a caused by the deformation can be hidden by the back pocket 6. Therefore, it is possible to prevent the appearance of the vehicle seat 1 from being impaired.

[0063] Furthermore, for example, if the upper end of the extension 101 is connected (sewn) to the back skin 5a, when the item S is inserted into the back pocket 6 along the back skin 5a, the item S may get caught on the upper end of the extension 101. Therefore, in this embodiment, the upper end of the extension 101 is not connected to the back skin 5a. This prevents the item S inserted along the back skin 5a from getting caught on the upper end of the extension 101, thereby improving the storability of the item S in the back pocket 6.

[0064] Although not shown, both the left and right ends of the extension 101 are also not connected to the back cover 5a. That is, except for the stitching position P1 between the shielding plate 10 and the back cover 5a, the entire extension 101 is not connected (sewn) to the back cover 5a, so that the deformation of the extension 101 is not restricted by the back cover 5a. This makes it easier for the extension 101 of the shielding plate 10 to bend forward when pushed in by an item S. Therefore, the extension 101 can more easily guide the insertion of the item S toward the back of the back pocket 6, improving the storage efficiency of the item S in the back pocket 6.

[0065] Furthermore, since the entire extension 101 is not connected (sewn) to the rear surface skin 5a, even if the extension 101 is deformed due to the thermal influence as described above, the influence of the deformation on the appearance of the rear surface skin 5a can be reduced, thereby improving the appearance of the vehicle seat 1.

[0066] In this manner, in this embodiment, the entire extension 101 is not connected to the rear surface 5a, and the extension 101 is easily bent forward when storing an item S. If the extension 101 comes into contact with a component such as the lower panel 30b during this deformation, an abnormal noise will be generated due to the contact, so a carpet 12 (a cushioning material) is provided on the front surface of the extension 101.

[0067] The carpet 12 comprises a covering portion 120 that covers almost the entire front surface of the extension portion 101 of the shielding plate 10, and a hanging portion 121 that hangs downward from a stitching position P1 with the shielding plate 10, and these portions 120, 121 are formed into a single sheet using nonwoven fabric or the like. The upper end of the carpet 12 (covering portion 120) is sewn to the upper end of the shielding plate 10 (extension portion 101), but the carpet 12 may also be joined to the shielding plate 10 by an adhesive or the like.

[0068] By covering the front surface of the extension portion 101 with the carpet 12 (covering portion 120), when the extension portion 101 is pushed into the stored item S and bent forward, the carpet 12 can come into contact with components such as the lower panel 30b. Because the carpet 12 is softer than the extension portion 101, it is possible to reduce abnormal noise that occurs when the lower panel 30b and the carpet 12 come into contact with each other.

[0069] The hanging portion 121 of the carpet 12 is entirely disconnected from the exposed portion 100 of the shielding plate 10, and a hook 13 is sewn to the lower end of this hanging portion 121. This hook 13 is a member for hanging the front skin 5b.

[0070] The lower end of the front skin 5b is folded back rearward (toward arrow B) along the underside of the seat pad 31, and if this folded-back portion (the skin covering the underside of the seat back 3) is defined as the lower skin 5c, a hook 14 sewn to the rear end of the lower skin 5c is hooked onto the hook 13 of the hanging part 121. In this way, the lower skin 5c (front skin 5b) is connected to the carpet 12.

[0071] In this way, by connecting the lower surface skin 5c (the lower end of the front surface skin 5b) to the hanging portion 121 of the carpet 12 that is not connected to the shielding plate 10, even if the shielding plate 10 deforms when an item S is inserted into the back pocket 6, the influence of the deformation can be prevented from extending to the front surface skin 5b and the lower surface skin 5c. Therefore, for example, it is possible to prevent the deformation of the shielding plate 10 when storing an item S from pulling a part of the front surface skin 5b rearward and causing wrinkles at the lower end of the front surface skin 5b. This improves the appearance of the vehicle seat 1.

[0072] As shown in FIG. 2, the exposed portion 100 of the shielding plate 10 is formed in a rectangular shape that is long in the left-right direction, and the extended portion 101 is formed in a trapezoidal shape that is smaller in left-right dimension than the exposed portion 100. Although not shown, the left-right dimension of the extended portion 101 is formed smaller than the left-right dimension of the back pocket 6 (see FIG. 5), and both left and right ends of the extended portion 101 are located inside the left and right ends of the back pocket 6 (seams 51e, 51f) in the left-right direction. In addition, the upper end of the extended portion 101 is located below the seam 51b. This prevents the extended portion 101 from interfering with sewing when sewing the back pocket 6 to the back upholstery 5a or when sewing the first upholstery 50a and the third upholstery 50c. This improves the workability of sewing the back pocket 6.

[0073] The present invention has been described above based on the above embodiment, but the present invention is not limited to the above embodiment, and it can be easily inferred that various modifications and improvements are possible within the scope of the present invention.

[0074] In the above embodiment, the seams 51a, 51b of the back cover 5a are connected to the back wire 31b of the seat pad 31 by the suspenders 7a, 7b, and the seams 51e, 51f are connected to the vertical wire 30e of the back frame 30 by the hooks 8a, 8b, but this is not necessarily limited to this.

[0075] For example, the seams 51a and 51b of the back skin 5a may be connected to the horizontal wire 30d. Also, for example, the seams 51e and 51f may be connected to the back wire 31b, in which case the embedding position of the back wire 31b in the seat pad 31 may be changed. That is, the wire used to retract the back skin 5a (the arrangement of the wire) may be changed as appropriate according to the position of the seam of the back skin 5a.

[0076] It is also possible to pull the back upholstery 5a forward with hooks 8a and 8b sewn to the seam allowances of seams 51a and 51b, or with suspenders 7a and 7b sewn to the seam allowances of seams 51e and 51f. Furthermore, the back upholstery 5a may be pulled forward with suspenders 7a and 7b or hooks 8a and 8b sewn to the seam allowances of seams 51c and 51d, or when seams other than seams 51a to 51f are formed on the back upholstery 5a, such other seams may be pulled forward.

[0077] In the above embodiment, the first epidermis 50a and the third epidermis 50c are each described as being a single piece of epidermis, but for example, the first epidermis 50a and the third epidermis 50c may be formed by sewing together multiple pieces of epidermis, or the first epidermis 50a and the third epidermis 50c may be integrated (as a single piece of epidermis).

[0078] In the above embodiment, the seams 51a, 51b are pulled forward by the pair of suspenders 7a, 7b that are inclined upward toward the front, but this is not necessarily limited to this. For example, one or both of the pair of suspenders 7a, 7b may be inclined downward toward the front.

[0079] In the above embodiment, the metal back wire 31b is given as an example of an engaging member embedded in the seat pad 31 (to which the suspenders 7a, 7b are hooked), but this is not necessarily limited to this. For example, the suspenders 7a, 7b may be hooked to a resin part embedded in the seat pad 31. In other words, the engaging member embedded in the seat pad 31 is not limited to the above-mentioned form as long as it has a structure that allows the back skin 5a to be pulled forward.

[0080] In the above embodiment, the case where the entire extension 101 of the shielding plate 10 is not connected to the back skin 5a (third skin 50c) has been described, but this is not necessarily limited to this. For example, either the top edge or one or both of the left and right edges of the extension 101 may be sewn to the back skin 5a (third skin 50c).

[0081] In the above embodiment, the case where the front surface of the extension portion 101 is covered with the sheet-like carpet 12 (covering portion 120) that is softer than the shielding plate 10 has been described, but this is not necessarily limited to this. For example, the carpet 12 may be omitted.

[0082] In the above embodiment, a case has been described in which hanging portion 121, which is not connected to shielding plate 10 (exposed portion 100), is provided on the lower end side of carpet 12, and front surface skin 5b is connected to hanging portion 130 via lower surface skin 5c, but this is not necessarily limited to this. For example, hanging portion 130 may be omitted, or lower surface skin 5c (the lower end of front surface skin 5b) may be connected to exposed portion 100 of shielding plate 10 or covered portion 120 of carpet 12.

[0083] In the above embodiment, the left and right ends of the extension portion 101 are described as being located laterally inward of the left and right ends of the back pocket 6, but the left and right ends of the extension portion 101 may also be located laterally outward of the back pocket 6. [Explanation of symbols]

[0084] 1. Vehicle seat 3 Seat back 30 Back Frame 30e Vertical wire (support member) 31 Seat pad 31b Back wire (engagement member) 5a dorsal epidermis 50a 1st epidermis (bottom epidermis) 51a First stitch 51b Second stitch 51c 3rd stitch 51d 4th stitch 51e 5th stitch 51f 6th stitch 52 recess 7a, 7b Suspenders (hanging members, first hanging members) 8a, 8b Hooks (hanging member, second hanging member) V1 Virtual plane (first virtual plane) V2 Virtual plane (second virtual plane)

Claims

1. The seat back includes a seat pad, a back frame having a support member for supporting the seat pad on the front side, a back surface covering the rear side of the back frame, and a hanging member for connecting the back surface to at least one of the support member and an engaging member embedded in the seat pad, The hanging members are at least composed of a pair of first hanging members spaced apart in the up-down direction and a pair of second hanging members spaced apart in the left-right direction, a recess that is recessed toward the front side is formed in the rear surface skin by the rear surface skin being pulled forward by the first hanging member and the second hanging member;

2. 2. The vehicle seat according to claim 1, wherein at least one of the first suspending member and the second suspending member connects the back surface of the seat to the support member.

3. 2. The vehicle seat according to claim 1, wherein at least one of the first suspending member and the second suspending member connects the back surface of the seat to the engaging member.

4. the rear surface includes a rectangular bottom surface forming a bottom surface of the recess, The back surface skin is formed with a first seam and a second seam along the two upper and lower sides of the bottom surface skin, and a third seam and a fourth seam along the two left and right sides of the bottom surface skin, The pair of first hanging members pull the first seam and the second seam forward, 2. The vehicle seat according to claim 1, wherein the pair of second hanging members pull the third seam and the fourth seam forward.

5. A fifth seam and a sixth seam are formed on the back surface skin along the third seam and the fourth seam, the fifth seam and the sixth seam extending downward from the bottom surface skin, The pair of first hanging members are sewn to the seam allowances of the first seam and the second seam, 5. The vehicle seat according to claim 4, wherein the pair of second hanging members are sewn to the seam allowances of the fifth seam and the sixth seam.

6. 6. The vehicle seat according to claim 5, wherein the first seam and the second seam are pulled forward by the first hanging member that is inclined upward toward the front and upper side.

7. 5. The vehicle seat according to claim 4, wherein the bottom surface skin is retracted forward of a first imaginary plane that contacts the rear surface of the upper end side and the rear surface of the lower end side of the seat back.

8. The back frame includes a pair of left and right side frames extending in the vertical direction, an upper frame connecting upper end sides of the pair of side frames to the left and right, and a lower frame connecting lower end sides of the pair of side frames to the left and right, 8. The vehicle seat according to claim 7, wherein the bottom skin is retracted forward of a second imaginary plane that contacts the upper frame and the lower frame on the rear side of the back frame.

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