Vehicle seats

Abstract

The present invention provides a vehicle seat that reduces the number of steps required when attaching components to a cushion frame. [Solution] The vehicle seat comprises a cushion frame F1 having left and right side frames 11 spaced apart from each other, a support wire 20 positioned between the left and right side frames 11 to support the cushion pad, left and right cover members 80 made of resin that cover at least the inside of the rear end of the side frame 11 in the left-right direction, and left and right side support members 30 positioned on both the left and right sides of the support wire 20 to support the cushion pad together with the support wire 20. The side support members 30 are provided on the cover members 80.

Description

Technical Field

[0001] The present invention relates to a vehicle seat mounted on a vehicle such as an automobile.

Background Art

[0002] As a vehicle seat, for example, Patent Document 1 discloses a seat including a cushion frame, an S-shaped spring spanned inside the cushion frame, and left and right inclined plates that support a pad together with the S-shaped spring.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in a conventional vehicle seat, since the left and right inclined plates need to be separately arranged on the cushion frame and fixed with screws, there is a problem that the man-hours for attaching the members to the cushion frame are large.

[0005] Therefore, an object of the present invention is to provide a vehicle seat capable of reducing the man-hours for attaching members to a cushion frame. Another object of the present invention is to reduce the fatigue feeling even when sitting for a long time. Another object of the present invention is to realize a comfortable sitting feeling when a person sits on the seat. Another object of the present invention is to reduce the man-hours for manufacturing the seat. Another object of the present invention is to achieve weight reduction of the seat.

Means for Solving the Problems

[0006] To achieve the above-mentioned objectives, the vehicle seat of the present invention comprises a cushion frame having left and right side frames spaced apart from each other, a pad support member positioned between the left and right side frames to support a cushion pad, left and right cover members made of resin that cover at least the inside of the rear end of the side frame in the left-right direction, and left and right side support members positioned on both the left and right sides of the pad support member to support the cushion pad together with the pad support member, wherein the side support members are provided on the cover member.

[0007] With this configuration, by attaching the cover member to the side frame, both the cover member and the side support member can be attached to the cushion frame. This eliminates the need to position the side support member separately from the cover member or to fix the side support member with screws. As a result, the number of steps required to attach the members to the cushion frame can be reduced.

[0008] In the aforementioned vehicle seat, the left and right side support members are positioned to the left and right of the seated person's hip point, and each side support member can be configured to be positioned within a range that includes the hip point in the front-rear direction.

[0009] According to this design, when a person sits on the seat, the left and right side support members support the sides of the sitter's buttocks and thighs. This relatively reduces the pressure around the ischial tuberosities, allowing the sitter to be supported evenly across the ischial tuberosities, buttocks, and thighs. As a result, blood circulation around the sitter's ischial tuberosities is less likely to be impaired, reducing fatigue even when sitting for long periods.

[0010] In the aforementioned vehicle seat, the side support member may have a support surface located inward in the left-right direction from the side frame, and the support surface may be configured to be higher as it moves outward in the left-right direction.

[0011] According to this design, when viewed from the front and rear, the support surfaces of the pad support member and the left and right side support members form a concave shape that conforms to the shape of the human body, thus providing a comfortable seating experience when a person sits on the seat.

[0012] In the aforementioned vehicle seat, the side support member can be formed integrally with the cover member.

[0013] According to this, the number of steps required to manufacture the sheets can be reduced.

[0014] In the aforementioned vehicle seat, the cover member has an inner cover portion that covers the left-right inner side of the rear end of the side frame, and the side support member has a support portion that is located inward in the left-right direction from the side frame and is provided adjacent to the inner cover portion, and a slit can be provided between the inner cover portion and the support portion that is cut outward from the left-right inner edge.

[0015] According to this design, the cover member and the side support member are integrally formed, and the inner cover part and the support part are separated by a slit. This allows the support part to flex more easily, resulting in a more comfortable seating experience when a person sits on the seat.

[0016] In the aforementioned vehicle seat, the support portion may be configured to have a width of 10 cm or more in the front-to-back direction.

[0017] According to this design, the load can be supported by a wider support section, resulting in a more comfortable seating experience when a person sits on the seat.

[0018] In the aforementioned vehicle seat, the side support member has a plate-shaped support portion located inward in the left-right direction from the side frame, and the support portion can be configured such that at least a portion of its width in the front-rear direction increases as it moves inward in the left-right direction.

[0019] According to this, since the front - rear width of the outer side in the left - right direction of the support part becomes relatively small, it becomes possible to moderately bend the support part. Also, since the front - rear width of the inner side in the left - right direction of the support part becomes relatively large, the load can be supported by the part with a large width. Thereby, when a person sits on the seat, a comfortable sitting feeling can be realized.

[0020] In the above - mentioned vehicle seat, the cushion frame has front - rear cross members that connect the left - right side frames, the pad support members are arranged spaced apart left and right, and include left - right linear members installed on the front - rear cross members. The side support members can be configured such that the inner ends in the left - right direction are connected to the linear members.

[0021] According to this, since it is possible to suppress the linear members from sinking too far downward by the side support members, when a person sits on the seat, a comfortable sitting feeling can be realized.

[0022] In the above - mentioned vehicle seat, the side support members have a support part located inside the left - right direction of the side frames, and the support part can be configured to have a through - hole.

[0023] According to this, since the side support members can be lightened, the weight of the seat provided with the side support members can be reduced. Also, since other members can be arranged through the through - holes, the limited space inside the seat can be effectively utilized.

Effects of the Invention

[0024] According to the present invention, the man - hours for attaching the members to the cushion frame can be reduced.

[0025] Also, according to the present invention, by arranging the left - right side support members on the left and right of the hip point of the seated person and arranging each side support member in the range including the hip point in the front - rear direction, the fatigue feeling can be reduced even when sitting for a long time.

[0026] Furthermore, according to the present invention, by configuring the support surface of the side support member to be positioned higher as it moves outward in the left-right direction, a comfortable seating experience can be achieved when a person sits on the seat.

[0027] Furthermore, according to the present invention, by forming the side support member integrally with the cover member, the number of steps required when manufacturing the sheet can be reduced.

[0028] Furthermore, according to the present invention, by providing a slit between the inner cover portion of the cover member and the support portion of the side support member, a comfortable seating experience can be achieved when a person sits on the seat.

[0029] Furthermore, according to the present invention, by making the width of the support part in the front-to-back direction 10 cm or more, a more comfortable seating experience can be achieved when a person sits on the seat.

[0030] Furthermore, according to the present invention, by increasing the width of at least a portion of the support portion of the side support member in the front-to-back direction as it moves inward in the left-to-right direction, a comfortable seating experience can be achieved when a person sits on the seat.

[0031] Furthermore, according to the present invention, the pad support member is configured to include left and right linear members mounted on the front and rear cross members of the cushion frame, and by connecting the left and right inner ends of the side support member to the linear members, a comfortable seating experience can be achieved when a person sits on the seat.

[0032] Furthermore, according to the present invention, the weight of the sheet can be reduced by providing through holes in the support portion of the side support member. In addition, since other members can be placed through the through holes, the limited space within the sheet can be used effectively. [Brief explanation of the drawing]

[0033] [Figure 1] This is a perspective view of a vehicle seat as a passenger seat according to an embodiment. [Figure 2] This is a perspective view of the cushion frame built into the seat cushion. [Figure 3] This is a cross-section of a seat cushion. [Figure 4] This is a rear view of the cushion frame and cover components. [Figure 5] This is a top view of the cushion pad. [Figure 6] This is a cross-sectional view of a seat cushion in a seated position. [Figure 7] This is a perspective view of a cushion frame equipped with a side support member according to the first modified example. [Figure 8] These are cross-sectional views (a) and (b) of a seat cushion equipped with a side support member according to a second modified example. [Figure 9] This is a perspective view of a cushion frame equipped with a side support member according to a third modified example. [Modes for carrying out the invention]

[0034] Hereinafter, an embodiment of the invention will be described with reference to the attached drawings. In this specification, front, back, left, right, and up and down are based on the perspective of a person sitting in a vehicle seat (seated person). As shown in Figure 1, the vehicle seat of this embodiment is configured as a vehicle seat S to be installed in an automobile, and comprises a seat cushion S1, a seat back S2, and a headrest S3.

[0035] Inside the seat cushion S1 is a cushion frame F1, as shown in Figure 2. The cushion frame F1 is a component that makes up the skeleton of the seat cushion S1. As shown in Figure 3, the seat cushion S1 is constructed by covering the cushion frame F1 with a cushion pad C1 made of urethane foam or the like, and a surface material U1 made of fabric or leather or the like.

[0036] As shown in Figure 2, the cushion frame F1 includes left and right side frames 11, a front frame 12 and a rear frame 13 as examples of front and rear cross members, and a pan frame 14.

[0037] The left and right side frames 11 are frames formed from metal plates and are spaced apart from each other. Each side frame 11 has a side frame body 11A that extends approximately in the front-to-back direction and a back mounting portion 11B that extends approximately upward from the rear end of the side frame body 11A, and has a cross-sectional shape in which the peripheral edge extends inward in the left-to-right direction. A back frame (not shown) that constitutes the skeleton of the seat back S2 is rotatably attached to the back mounting portion 11B via a reclining mechanism. The seat back S2 is constructed by covering the back frame with a pad material made of urethane foam or the like and a surface material, similar to the seat cushion S1.

[0038] The front frame 12 and rear frame 13 are frames formed from metal pipes and are spaced apart front to back. The front frame 12 connects the front ends of the left and right side frames 11 (side frame bodies 11A), and the rear frame 13 connects the rear ends of the left and right side frames 11 (side frame bodies 11A). The pan frame 14 is a frame formed from a metal plate and is positioned to connect the front ends of the left and right side frames 11.

[0039] Between the left and right side frames 11, three support wires 20 are positioned as an example of pad support members that support the cushion pad C1 (see Figure 3) from below. Each support wire 20 is mounted on the front frame 12 and the rear frame 13 and is positioned to extend in the front-rear direction. The support wires 20 are made of metal wire. The front end of each support wire 20 bends upward and forward, and then is bent in a roughly arc shape to follow the outer surface of the front frame 12. The rear end of each support wire 20 bends upward, and then is bent in a roughly arc shape to follow the outer surface of the rear frame 13.

[0040] The support wire 20 includes one first support wire 21 and two second support wires 22, which are examples of left and right linear members. The first support wire 21 is located in the left-right center inside the cushion frame F1. The left and right second support wires 22 are located one on each side of the first support wire 21 inside the cushion frame F1. In other words, the left and right second support wires 22 are spaced apart to the left and right, with the first support wire 21 positioned between them.

[0041] In this embodiment, the three support wires 20 are connected by a plurality of wire connecting members 50 arranged front to back. The wire connecting members 50 are substantially plate-shaped members made of resin. Each wire connecting member 50 is provided such that its left-right central portion covers the entire circumference of a portion of the first support wire 21, thereby enclosing a portion of the first support wire 21. Furthermore, each wire connecting member 50 is provided such that its left-right ends cover the entire circumference of a portion of the second support wire 22, thereby enclosing a portion of the second support wire 22. As a result, the first support wire 21 is positioned to pass through the left-right central portion of each wire connecting member 50, and the second support wire 22 is positioned to pass through both left-right ends of each wire connecting member 50.

[0042] The wire connecting member 50 has a roughly rectangular through-hole (reference numeral omitted) that penetrates vertically. In this embodiment, the vehicle seat S can be fitted with a wire harness by engaging a clip for fastening a wire harness or the like into the through-hole of the wire connecting member 50. In other words, the wire connecting member 50 serves as a mounting base to which a wire harness or the like can be attached.

[0043] A covering member 60 is positioned at the front of each of the three support wires 20. The covering member 60 is made of resin and is integrally formed with the support wire 20, covering and enclosing the substantially arc-shaped bent portion at the front end of the support wire 20. The covering member 60 has a substantially C-shaped cylindrical form with a slit formed in the left-right direction. The front end of each support wire 20 is hooked onto the front frame 12 while covered by the covering member 60.

[0044] Furthermore, a rear support member 70 is positioned at the rear of the three support wires 20. The rear support member 70 is a member that supports the cushion pad C1 together with the support wires 20, and is made of resin. The rear support member 70 is provided so as to cover and wrap around the rear ends of the support wires 20, including the left and right second support wires 22, and is formed integrally with the support wires 20. The rear support member 70 has a rear support portion 71 and a hook portion 72.

[0045] The rear support portion 71 is a plate-like part located in front of the rear cross member, the rear frame 13, and has a roughly L-shape when viewed from the left-right direction. The latching portion 72 is the part that covers the rear end of the support wire 20 and has a roughly U-shape when viewed from the left or right direction. The rear support portion 71 and the rear end of the latching portion 72 extend to the left and right, connecting the rear ends of the three support wires 20, including the left and right second support wires 22.

[0046] The rear end of each support wire 20 is hooked to the rear frame 13 while covered by the hooking portion 72 of the rear support member 70. In the vehicle seat S of this embodiment, the front end of the metal support wire 20 is hooked to the metal front frame 12 while covered by the resin covering member 60, and the rear end is hooked to the metal rear frame 13 while covered by the resin hooking portion 72, so that no contact noise is generated between the metal members.

[0047] The metal support wire 20, the resin wire connecting member 50, the covering member 60, and the rear support member 70 described above are integrally formed, for example, by insert molding.

[0048] The rear end of each side frame 11 is covered by a cover member 80 to prevent, for example, a person from touching the metal side frame 11. The left and right cover members 80 are made of resin and each has an inner cover portion 81, an upper cover portion 82, and a rear cover portion 83.

[0049] The inner cover portion 81 is the part that covers the inside of the rear end of the side frame 11 in the left-right direction. The inner cover portion 81 is located below the back mounting portion 11B and is positioned to extend from the rear side of the side support member 30 to the rear edge of the side frame body 11A.

[0050] The upper cover portion 82 is the part that covers the portion of the side frame 11 in front of the rear end portion 11B from above, and is provided so as to extend outward in the left-right direction from the front portion of the upper end of the inner cover portion 81. In this embodiment, the upper cover portion 82 has a roughly L-shaped cross-section as its left-right outer end extends downward along the side surface of the side frame 11, and together with the inner cover portion 81, forms a hook shape. The cover member 80 engages with the side frame 11 by the hook-shaped portion formed by the inner cover portion 81 and the upper cover portion 82 hooking onto the upper end of the side frame 11 from above.

[0051] As shown in Figure 4, the rear cover portion 83 is the part that covers the rear end of the side frame 11 from the rear side, and is provided so as to extend outward in the left-right direction from the rear end of the inner cover portion 81.

[0052] As shown in Figure 2, side support members 30 are positioned on both the left and right sides of the support wire 20. The left and right side support members 30 are members that support the cushion pad C1 (see Figure 3) together with the support wire 20 and the rear support member 70, and are made of resin. Each side support member 30 is provided on the corresponding left and right cover members 80. In this embodiment, the side support members 30 are integrally formed with the cover member 80 as a part of the cover member 80 by integral molding of resin. Specifically, the side support members 30 are formed to extend inward in the left-right direction from the left-right inner end of the front end of the upper cover portion 82.

[0053] As shown in Figure 5, the left and right side support members 30 are positioned one on each side of the seated person's hip point HP. Each side support member 30 is positioned within the range that includes the hip point HP in the front-rear direction. In other words, the side support members 30 are positioned on both the left and right sides of the hip point HP, sandwiching the hip point HP when viewed from above. In this specification, the hip point HP is the position of the hip point when a 3D mannequin based on SAE J-826 is seated on the seat. As shown in Figure 2, each side support member 30 has a side support portion 31 and an extension portion 35 as an example of a support portion.

[0054] The side support portion 31 is a plate-shaped portion located inward in the left-right direction from the side frame 11, and is provided adjacent to the front side of the inner cover portion 81. In other words, in this embodiment, the cover member 80, on which the side support member 30 is integrally formed, has a slit 81A between the inner cover portion 81 and the side support portion 31, and this slit 81A separates the portion located inward on the left and right sides of the side frame 11 into the inner cover portion 81 and the side support portion 31. The slit 81A is formed to cut outward in the left-right direction from the inward edge of the portion of the cover member 80 located inward on the left and right sides of the side frame 11, specifically, from the lower edge 81B of the inner cover portion 81 upward.

[0055] The side support portions 31 are positioned at an angle such that they are higher as they move outward in the left-right direction. In other words, the side support portions 31 extend diagonally downward inward from the left-right inner end of the front end of the upper cover portion 82. Each side support portion 31 has a roughly trapezoidal shape, with its width in the front-rear direction increasing as it moves inward in the left-right direction (see also Figure 5). As an example, it is desirable that the width of the side support portion 31 in the front-rear direction be 10 cm or more. More specifically, it is desirable that the width of the upper end of the side support portion 31, which has the smallest width in the front-rear direction, be 10 cm or more.

[0056] Each side support portion 31 has a first support surface 31A, which is the upper surface. The first support surface 31A is an example of a support surface. In this embodiment, the first support surface 31A is an inclined surface that is positioned higher as it moves outward in the left-right direction, as the plate-shaped side support portions 31 are arranged inclined so that they are positioned higher as they move outward in the left-right direction.

[0057] The extensions 35 are provided so as to extend inward in the left-right direction from the lower end of the side support portion 31. Each extension 35 is positioned to rest on the corresponding second support wires 22 on the left and right sides.

[0058] As shown in Figure 5, the cushion pad C1 has a central portion C10 and left and right side portions C20 provided on both the left and right sides of the central portion C10, which protrude above the central portion C10. The cushion pad C1 also has a suspension groove C30 for suspending the surface material U1 (see Figure 3).

[0059] The suspension groove C30 includes left and right first grooves C31 extending in the front-rear direction, and second grooves C32 and third grooves C33 extending in the left-right direction. The left and right first grooves C31 are formed to extend along the boundary between the central part C10 and each side part C20 on both the left and right sides of the hip point HP. The second groove C32 is formed on the front side of the hip point HP, connecting the left and right first grooves C31 near their respective midpoints in the front-to-back direction. The third groove C33 is formed on the rear side of the hip point HP, connecting the rear ends of the left and right first grooves C31.

[0060] Furthermore, a suspension wire (not shown) for suspending the surface material U1 into the suspension groove C30 is embedded in the cushion pad C1 by insert molding. The suspension wire is positioned along the suspension groove C30 and is partially exposed through a plurality of holes C50 formed at the bottom of the suspension groove C30. The surface material U1 is secured to the cushion pad C1 by engaging hooks (not shown) provided on the surface material U1 with the portion of the suspension wire exposed through the holes C50.

[0061] The side support portion 31 of the side support member 30 is positioned below the corresponding first groove C31 in the left-right direction, straddling the first groove C31. In other words, the side support portion 31 and the first groove C31 are positioned to intersect. Furthermore, the side support portion 31 is positioned between the second groove C32 and the third groove C33 in the front-rear direction.

[0062] Next, we will explain the effects and benefits of the vehicle seat S configured as described above. As shown in Figure 6, when a person (seater P) sits on the vehicle seat S, the side support portions 31 of the left and right side support members 30, which are positioned to sandwich the hip point HP on both sides of the hip point HP, can support the sides of the seater P's buttocks and thighs by sandwiching them from the left and right sides. As a result, the sides of the seater P's buttocks and thighs can be firmly supported compared to when the side support portions 31 are not provided. Consequently, the pressure around the ischial tuberosity P1 (more precisely, the lowest protruding part of the ischial tuberosity P1; the same applies hereafter) is relatively reduced, allowing the seater P to be supported in a balanced manner by the area around the ischial tuberosity P1 and the entire buttocks and thighs. This reduces blood circulation around the seater P's ischial tuberosity P1, thus reducing fatigue for the seater P even when sitting for long periods of time.

[0063] Furthermore, since the side support members 30 are provided on the cover member 80, both the cover member 80 and the side support members 30 can be attached to the cushion frame F1 by attaching the cover member 80 to the side frame 11. This eliminates the need to position the side support members separately from the cover member or to fix the side support members with screws, thus reducing the number of steps required when attaching the components to the cushion frame F1.

[0064] Furthermore, since the first support surface 31A of the side support member 30 is an inclined surface that is positioned higher towards the left and right outer sides, when viewed from the front and rear, the support wire 20 and the left and right first support surfaces 31A can form a concave shape that conforms to the shape of the human body (seater P). As a result, when the seater P sits on the vehicle seat S, the seater P can be stably supported, thus achieving a comfortable seating experience.

[0065] Furthermore, since the side support member 30 is formed integrally with the cover member 80, the number of steps required to manufacture the vehicle seat S can be reduced compared to the case where the side support member and cover member are assembled as separate parts in a process prior to attaching the member to the cushion frame F1.

[0066] Furthermore, since the cover member 80 and the side support member 30 are integrally formed, and the inner cover portion 81 and the side support portion 31 are separated by the slit 81A, the side support portion 31 is more flexible compared to the case where the inner cover portion and the side support portion are connected front to back. As a result, when a occupant P sits on the vehicle seat S, it is possible to provide appropriate cushioning, thereby achieving a comfortable seating experience.

[0067] Furthermore, since the width of the side support portion 31 in the front-to-back direction is 10 cm or more, the load can be supported by the wide side support portion 31. As a result, when a occupant P sits on the vehicle seat S, the occupant P can be stably supported, thus achieving a comfortable seating experience.

[0068] Furthermore, because the front-to-back width of the side support portion 31 increases towards the inside of the left and right sides, the front-to-back width of the left and right outer sides of the side support portion 31 becomes relatively smaller, allowing the side support portion 31 to flex appropriately up and down, thus providing appropriate cushioning. Also, because the front-to-back width of the left and right inner sides of the side support portion 31 becomes relatively larger, the load can be supported by the wider part, thus providing stable support for the occupant P. As a result, a more comfortable seating experience can be achieved when the occupant P sits on the vehicle seat S. In addition, by making the front-to-back width of the upper end, where the front-to-back width of the side support portion 31 is smallest, of 10 cm or more, the strength of the side support portion 31 near the upper end, where a large load is applied when it flexes, can be improved.

[0069] Although one embodiment of the invention has been described above, the present invention is not limited to the above embodiment. Specific configurations can be modified as appropriate without departing from the spirit of the invention, as described below. In the following, components similar to those described above are denoted by the same reference numerals and their descriptions are omitted as appropriate, while differences from the previously described configurations are described in detail.

[0070] For example, as shown in Figure 7, the side support portion 31 may have a through hole 31H. In the configuration shown in Figure 7, the through hole 31H is, for example, a roughly trapezoidal shape that is long in the front-rear direction and is formed in the lower part of the side support portion 31. By having a through hole 31H in the side support portion 31, the weight of the side support member 30 can be reduced, and thus the weight of the vehicle seat S equipped with the side support member 30 can be reduced. In addition, other components such as wire harnesses and ducts for air conditioning can be arranged through the through hole 31H, so the limited space inside the vehicle seat S can be used effectively. The shape, number, and position of the through hole are not particularly limited and can be set as appropriate.

[0071] Furthermore, as shown in Figures 8(a) and 8(b), the side support member 30 may have its inner ends in the left-right direction connected to the second support wire 22. For example, in the configuration shown in Figure 8(a), the side support member 30 is connected to the second support wire 22 by having its inner ends in the left-right direction of the extension 35 wrap around a portion of the second support wire 22, covering the entire circumference of a part of the second support wire 22. In other words, the second support wire 22 is positioned to pass through the inner left and right ends of the extension 35. Such a configuration, in which a metal second support wire 22 and a resin side support member 30 are integrally formed, can be formed by insert molding, for example, of the second support wire 22 and the side support member 30.

[0072] Furthermore, in the configuration shown in Figure 8(b), the side support member 30 has a hook-shaped engaging portion 35A at the inner end of the extension portion 35 in the left-right direction, and is connected to the second support wire 22 by engaging with a part of the second support wire 22 with this engaging portion 35A. In this way, by connecting the side support member 30 to the second support wire 22, the side support member 30 can prevent the second support wire 22 from sinking too far downward. This makes it possible to achieve a comfortable seating experience when a person sits on the vehicle seat S. The left and right side support members 30 may be formed integrally with a wire connecting member 50 (see Figure 2), for example, and thus connected to both the second support wire 22 and the first support wire 21. Furthermore, the left and right side support members 30 may be connected by the wire connecting member 50 and formed as a single unit.

[0073] Furthermore, although the side support member 30 was formed integrally with the cover member 80 in the above embodiment, the invention is not limited to this. For example, as shown in Figure 9, the side support member 30 may be formed as a separate part from the cover member 80. In the embodiment shown in Figure 9, as an example, the side support member 30 is provided on the cover member 80 by fixing the upper end of the side support portion 31 to the cover member 80 with mounting members 91 such as screws or rivets.

[0074] Furthermore, although the cover member 80 in the above embodiment had an inner cover portion 81, an upper cover portion 82, and a rear cover portion 83, it is not limited to this. For example, the cover member may have an inner cover portion 81 and a rear cover portion 83, but not an upper cover portion 82, or it may have an inner cover portion 81 and an upper cover portion 82, but not a rear cover portion 83. Alternatively, the cover member may have an inner cover portion 81, but not an upper cover portion 82 or a rear cover portion 83. In other words, the cover member only needs to be a member that covers at least the inside in the left-right direction of the rear end of the side frame.

[0075] Furthermore, although the above embodiment included a rear support member 70 connecting the support wire 20 to the vehicle seat S, the vehicle seat is not limited to this. For example, the vehicle seat may not include a rear support member. Even in this case, it is desirable that the rear end of the support wire, which is hooked onto the rear frame, be covered with a resin member. This prevents contact noise generated by metal members coming into contact with each other.

[0076] Furthermore, in the above embodiment, the side support portion 31 had a substantially trapezoidal shape in which the width in the front-to-back direction increased as it moved inward in the left-to-right direction, but it is not limited to this. For example, the side support portion may have a shape in which only a part of its front-to-back width increases as it moves inward in the left-to-right direction, rather than the entire portion. Alternatively, the side support portion may have a shape in which the width in the front-to-back direction hardly changes, for example, a substantially rectangular shape.

[0077] Furthermore, although the side support portion 31 having the first support surface 31A was plate-shaped in the above embodiment, it is not limited to this. For example, the side support portion may have a thickness such that its cross-section, when viewed along the front-rear direction, is substantially triangular.

[0078] Furthermore, in the above embodiment, the first support surface 31A was an inclined surface that was positioned higher towards the left and right outer edges, but it is not limited to this, and for example, the first support surface may be an upward-facing surface. The first support surface may be a flat surface or a curved surface.

[0079] Furthermore, although in the above embodiment only one first support wire 21 was positioned in the center in the left-right direction, the invention is not limited to this, and for example, multiple support wires may be arranged side by side in the left-right direction. Also, although the above embodiment exemplifies a second support wire 22 (support wire 20) as a linear member, the invention is not limited to this, and for example, the linear member may be an elastically deformable member such as an S-spring, in which at least a portion is alternately bent in the left-right direction. Also, although the above embodiment exemplifies a wire-shaped member such as the support wire 20 as the pad support member, the invention is not limited to this, and for example, the pad support member may be a plate-shaped member. Furthermore, a wire-shaped pad support member may be positioned at the location of the second support wire 22 in the above embodiment, and a plate-shaped pad support member may be positioned at the location of the first support wire 21. In other words, when multiple pad support members are arranged, their configurations may differ.

[0080] Furthermore, while the above embodiment exemplifies the front and rear cross members as a front frame 12 and a rear frame 13, it is not limited to these. For example, the front cross member may be a pan frame 14 as shown in Figure 2. Also, the rear cross member may be a member formed from a metal plate rather than a member formed from a pipe. In addition, while the above embodiment exemplifies a side frame formed from a metal plate, it is not limited to this, and may be formed from, for example, a pipe.

[0081] Furthermore, although the above embodiment exemplified a vehicle seat S installed in an automobile as a seat for a vehicle, it is not limited to this, and may also be a seat installed in vehicles other than automobiles, such as railway cars, ships, aircraft, etc.

[0082] Furthermore, the elements described in the above-mentioned embodiments and modifications may be combined in any way. [Explanation of symbols]

[0083] 11 Side Frames 12 Front Frame 13 Rear Frame 20 Support wires 22 Second support wire 30 Side support member 31 Side support section 31A 1st support surface 80 Cover component 81 Inner cover section 81A Slit 81B Lower edge C1 Cushion Pad F1 Cushion Frame HP Hip Point S Vehicle Seat

Claims

[Claim 1] A cushion frame having left and right side frames positioned spaced apart on the left and right, A pad support member is positioned between the left and right side frames to support the cushion pad, The cushion pad placed over the cushion frame, The surface material covering the cushion pad, The system comprises left and right side support members positioned on both the left and right sides of the pad support member, which support the cushion pad together with the pad support member, The cushion pad has a suspension groove for suspending the surface material, The aforementioned side support member is In the left-right direction, it is arranged so as to straddle the suspension groove, A vehicle seat characterized in that, in the left-right direction, the portion inside the suspension groove is larger than the portion outside the suspension groove.

Images